diff --git a/src/bootsupport/modules/test/tomlish-1.1.3.tm b/src/bootsupport/modules/test/tomlish-1.1.3.tm index 08ec371d..ed5044a7 100644 Binary files a/src/bootsupport/modules/test/tomlish-1.1.3.tm and b/src/bootsupport/modules/test/tomlish-1.1.3.tm differ diff --git a/src/bootsupport/modules/tomlish-1.1.4.tm b/src/bootsupport/modules/tomlish-1.1.4.tm new file mode 100644 index 00000000..7a6d5205 --- /dev/null +++ b/src/bootsupport/modules/tomlish-1.1.4.tm @@ -0,0 +1,6172 @@ +# -*- tcl -*- +# Maintenance Instruction: leave the 999999.xxx.x as is and use 'pmix make' or src/make.tcl to update from -buildversion.txt +# +# Please consider using a BSD or MIT style license for greatest compatibility with the Tcl ecosystem. +# Code using preferred Tcl licenses can be eligible for inclusion in Tcllib, Tklib and the punk package repository. +# ++ +++ +++ +++ +++ +++ +++ +++ +++ +++ +++ +# (C) 2024 +# +# @@ Meta Begin +# Application tomlish 1.1.4 +# Meta platform tcl +# Meta license +# @@ Meta End + + +# ++ +++ +++ +++ +++ +++ +++ +++ +++ +++ +++ +# doctools header +# ++ +++ +++ +++ +++ +++ +++ +++ +++ +++ +++ +#*** !doctools +#[manpage_begin tomlish_module_tomlish 0 1.1.4] +#[copyright "2024"] +#[titledesc {tomlish toml parser}] [comment {-- Name section and table of contents description --}] +#[moddesc {tomlish}] [comment {-- Description at end of page heading --}] +#[require tomlish] +#[keywords module parsing toml configuration] +#[description] +#[para] tomlish is an intermediate representation of toml data in a tree structure (tagged lists representing type information) +#[para] The design goals are for tomlish to be whitespace and comment preserving ie byte-for byte preservation during roundtrips from toml to tomlish and back to toml +#[para] The tomlish representation can then be converted to a Tcl dict structure or to other formats such as json, +#[para] although these other formats are generally unlikely to retain whitespace or comments +#[para] The other formats also won't preserve roundtripability e.g \t and a literal tab coming from a toml file will be indistinguishable. +#[para] A further goal is to allow at least a useful subset of in-place editing operations which also preserve whitespace and comments. +#[para] e.g leaf key value editing, and table reordering/sorting, key-renaming at any level, key insertions/deletions +#[para] The API for editing (tomldoc object?) may require explicit setting of type if accessing an existing key +#[para] e.g setting a key that already exists and is a different type (especially if nested structure such as a table or array) +#[para] will need a -type option (-force ?) to force overriding with another type such as an int. + +# ++ +++ +++ +++ +++ +++ +++ +++ +++ +++ +++ + +#*** !doctools +#[section Overview] +#[para] overview of tomlish +#[subsection Concepts] +#[para] - + + +# ++ +++ +++ +++ +++ +++ +++ +++ +++ +++ +++ +## Requirements +# ++ +++ +++ +++ +++ +++ +++ +++ +++ +++ +++ + +#*** !doctools +#[subsection dependencies] +#[para] packages used by tomlish +#[list_begin itemized] + +package require Tcl 8.6- +package require struct::stack +package require logger + +#*** !doctools +#[item] [package {Tcl 8.6-}] +#[item] [package {struct::stack}] + +#limit ourselves to clear, destroy, peek, pop, push, rotate, or size (e.g v 1.3 does not implement 'get') + + +#*** !doctools +#[list_end] + +# ++ +++ +++ +++ +++ +++ +++ +++ +++ +++ +++ + +#*** !doctools +#[section API] + +# ++ +++ +++ +++ +++ +++ +++ +++ +++ +++ +++ + +# ++ +++ +++ +++ +++ +++ +++ +++ +++ +++ +++ +# Base namespace +# ++ +++ +++ +++ +++ +++ +++ +++ +++ +++ +++ +namespace eval tomlish { + namespace export {[a-z]*}; # Convention: export all lowercase + variable types + + #IDEAS: + # since get_toml produces tomlish with whitespace/comments intact: + # tomldoc object - allow (at least basic?) editing of toml whilst preserving comments & whitespace + # - setKey (set leaf only to value) how to specify type? -type option? - whole array vs index into arrays and further nested objects? - option for raw toml additions? + # - separate addKey?? + # - deleteKey (delete leaf) + # - deleteTable (delete table - if only has leaves? - option to delete with child tables?) + # - set/add Table? - position in doc based on existing tables/subtables? + + #The tomlish intermediate representation allows things such as sorting the toml document by table name or other re-ordering of tables - + # because the tables include subkeys, comments and newlines within their structure - those elements all come along with it nicely during reordering. + #The same goes for the first newline following a keyval e.g x=1 \ny=2\n\n + #The newline is part of the keyval structure so makes reordering easier + #example from_toml "a=1\nb=2\n\n\n" + # 0 = TOMLISH + # 1 = KEY a = {INT 1} {NEWLINE lf} + # 2 = NEWLINE lf + # 3 = KEY b = {INT 2} {NEWLINE lf} + # 4 = NEWLINE lf + # 5 = NEWLINE lf + + + #ARRAY is analogous to a Tcl list + #TABLE is analogous to a Tcl dict + #WS = inline whitespace + #KEY = bare key and value + #DQKEY = double quoted key and value + #SQKEY = single quoted key and value + #ITABLE = inline table (*can* be anonymous table) + # inline table values immediately create a table with the opening brace + # inline tables are fully defined between their braces, as are dotted-key subtables defined within + # No additional subtables or arrays of tables may be defined within an inline table after the ending brace - they must be entirely self-contained + + set tags [list TOMLISH ARRAY TABLE ITABLE TABLEARRAY WS NEWLINE COMMENT DOTTEDKEY KEY DQKEY SQKEY STRING STRINGPART MULTISTRING LITERAL LITERALPART MULTILITERAL INT FLOAT BOOL DATETIME] + #removed - ANONTABLE + #tomlish v1.0 should accept arbitrary 64-bit signed ints (from -2^63 to 2^63-1) + #we will restrict to this range for compatibility for now - although Tcl can handle larger (arbitrarily so?) + set min_int -9223372036854775808 ;#-2^63 + set max_int +9223372036854775807 ;#2^63-1 + + proc Dolog {lvl txt} { + #return "$lvl -- $txt" + set msg "[clock format [clock seconds] -format "%Y-%m-%dT%H:%M:%S"] tomlish '$txt'" + puts stderr $msg + } + logger::initNamespace ::tomlish + foreach lvl [logger::levels] { + interp alias {} tomlish_log_$lvl {} ::tomlish::Dolog $lvl + log::logproc $lvl tomlish_log_$lvl + } + + #*** !doctools + #[subsection {Namespace tomlish}] + #[para] Core API functions for tomlish + #[list_begin definitions] + + proc tags {} { + return $::tomlish::tags + } + + #helper function for to_dict + proc _get_keyval_value {keyval_element} { + log::notice ">>> _get_keyval_value from '$keyval_element'<<<" + set found_value 0 + #find the value + # 3 is the earliest index at which the value could occur (depending on whitespace) + set found_sub [list] + if {[lindex $keyval_element 2] ne "="} { + error "tomlish _get_keyval_value keyval_element doesn't seem to be a properly structured { = } list" + } + + #review + if {[uplevel 1 [list info exists tablenames_seen]]} { + upvar tablenames_seen tablenames_seen + } else { + set tablenames_seen [list] ;#list of lists + } + if {[uplevel 1 [list info exists tablenames_closed]]} { + upvar tablenames_closed tablenames_closed + } else { + set tablenames_closed [list] ;#list of lists + } + + foreach sub [lrange $keyval_element 2 end] { + #note that a barekey/dquotedkey won't occur directly inside a barekey/dquotedkey + switch -exact -- [lindex $sub 0] { + STRING - LITERAL - MULTISTRING - MULTILITERAL - INT - FLOAT - BOOL - DATETIME - TABLE - ARRAY - ITABLE { + set type [lindex $sub 0] + set value [lindex $sub 1] + set found_sub $sub + incr found_value 1 + } + default {} + } + } + if {!$found_value} { + error "tomlish Failed to find value element in KEY. '$keyval_element'" + } + if {$found_value > 1} { + error "tomlish Found multiple value elements in KEY, expected exactly one. '$keyval_element'" + } + + switch -exact -- $type { + INT - FLOAT - BOOL - DATETIME { + #simple (non-container, no-substitution) datatype + set result [list type $type value $value] + } + STRING - STRINGPART { + set result [list type $type value [::tomlish::utils::unescape_string $value]] + } + LITERAL - LITERALPART { + #REVIEW + set result [list type $type value $value] + } + TABLE { + #invalid? + error "tomlish _get_keyval_value invalid to have type TABLE on rhs of =" + } + ITABLE { + #This one should not be returned as a type value structure! + # + set result [::tomlish::to_dict [list $found_sub]] + } + ARRAY { + #we need to recurse to get the corresponding dict for the contained item(s) + #pass in the whole $found_sub - not just the $value! + set prev_tablenames_seen $tablenames_seen + set prev_tablenames_closed $tablenames_closed + set tablenames_seen [list] + set tablenames_closed [list] + set result [list type $type value [::tomlish::to_dict [list $found_sub]]] + set tablenames_seen $prev_tablenames_seen + set tablenames_closed $prev_tablenames_closed + } + MULTISTRING - MULTILITERAL { + #review - mapping these to STRING might make some conversions harder? + #if we keep the MULTI - we know we have to look for newlines for example when converting to json + #without specific types we'd have to check every STRING - and lose info about how best to map chars within it + set result [list type $type value [::tomlish::to_dict [list $found_sub]]] + } + default { + error "tomlish Unexpected value type '$type' found in keyval '$keyval_element'" + } + } + return $result + } + + proc _get_dottedkey_info {dottedkeyrecord} { + set key_hierarchy [list] + set key_hierarchy_raw [list] + if {[lindex $dottedkeyrecord 0] ne "DOTTEDKEY"} { + error "tomlish _get_dottedkey_info error. Supplied list doesn't appear to be a DOTTEDKEY (tag: [lindex $dottedkeyrecord 0])" + } + set compoundkeylist [lindex $dottedkeyrecord 1] + set expect_sep 0 + foreach part $compoundkeylist { + set parttag [lindex $part 0] + if {$parttag eq "WS"} { + continue + } + if {$expect_sep} { + if {$parttag ne "DOTSEP"} { + error "DOTTEDKEY missing dot separator between parts. '$dottedkeyrecord'" + } + set expect_sep 0 + } else { + set val [lindex $part 1] + switch -exact -- $parttag { + KEY { + lappend key_hierarchy $val + lappend key_hierarchy_raw $val + } + DQKEY { + lappend key_hierarchy [::tomlish::utils::unescape_string $val] + lappend key_hierarchy_raw \"$val\" + } + SQKEY { + lappend key_hierarchy $val + lappend key_hierarchy_raw "'$val'" + } + default { + error "DOTTED key unexpected part '$parttag' - ensure dot separator is between key parts. '$item'" + } + } + set expect_sep 1 + } + } + return [dict create keys $key_hierarchy keys_raw $key_hierarchy_raw] + } + + + + #to_dict is a *basic* programmatic datastructure for accessing the data. + # produce a dictionary of keys and values from a tomlish tagged list. + # to_dict is primarily for reading toml data. + #Extraneous (not within quoted sections) whitespace and comments are not preserved in this structure, + # so a roundtrip from toml to this datastructure and back to toml will lose whitespace formatting and comments. + # creating/changing toml values can be done directly on a tomlish list if preserving (or adding) formatting/comments is desired. + #A separate package 'tomlish::object' may be needed to allow easier programmatic creating/updating/deleting of data elements whilst preserving (or adding or selectively deleting/editing) such formatting. + # + + #within an ARRAY, we store a list of items such as plain dicts (possibly empty) and {type value } for simple types + #(ARRAYS can be mixed type) + #This means our dict structure should have only ARRAY and simple types which need to be in {type value } form + #A dict within an array encodeded as a type ITABLE value should also parse - but is the unpreferred form - REVIEW test? + + #Namespacing? + #ie note the difference: + #[Data] + #temp = { cpu = 79.5, case = 72.0} + # versus + #[Data] + #temps = [{cpu = 79.5, case = 72.0}] + proc to_dict {tomlish} { + + #keep track of which tablenames have already been directly defined, + # so we can raise an error to satisfy the toml rule: 'You cannot define any key or table more than once. Doing so is invalid' + #Note that [a] and then [a.b] is ok if there are no subkey conflicts - so we are only tracking complete tablenames here. + #we don't error out just because a previous tablename segment has already appeared. + ##variable tablenames_seen [list] + if {[uplevel 1 [list info exists tablenames_seen]]} { + upvar tablenames_seen tablenames_seen + } else { + set tablenames_seen [list] ;#list of lists + } + if {[uplevel 1 [list info exists tablenames_closed]]} { + upvar tablenames_closed tablenames_closed + } else { + set tablenames_closed [list] ;#list of lists + } + + log::info "---> to_dict processing '$tomlish'<<<" + set items $tomlish + + foreach lst $items { + if {[lindex $lst 0] ni $::tomlish::tags} { + error "supplied string does not appear to be toml parsed into a tomlish tagged list. Run tomlish::decode::toml on the raw toml data to produce a tomlish list" + } + } + + if {[lindex $tomlish 0] eq "TOMLISH"} { + #ignore TOMLISH tag at beginning + set items [lrange $tomlish 1 end] + } + + set datastructure [dict create] + foreach item $items { + set tag [lindex $item 0] + #puts "...> item:'$item' tag:'$tag'" + switch -exact -- $tag { + KEY - DQKEY - SQKEY { + log::debug "---> to_dict item: processing $tag: $item" + set key [lindex $item 1] + if {$tag eq "DQKEY"} { + set key [::tomlish::utils::unescape_string $key] + } + #!todo - normalize key. (may be quoted/doublequoted) + + if {[dict exists $datastructure $key]} { + error "Duplicate key '$key'. The key already exists at this level in the toml data. The toml data is not valid." + } + + #lassign [_get_keyval_value $item] type val + set keyval_dict [_get_keyval_value $item] + dict set datastructure $key $keyval_dict + } + DOTTEDKEY { + log::debug "---> to_dict item processing $tag: $item" + set dkey_info [_get_dottedkey_info $item] + set dotted_key_hierarchy [dict get $dkey_info keys] + + #a.b.c = 1 + #table_key_hierarchy -> a b + #leafkey -> c + if {[llength $dotted_key_hierarchy] == 0} { + #empty?? probably invalid. review + #This is different to '' = 1 or ''.'' = 1 which have lengths 1 and 2 respectively + error "DOTTED key has no parts - invalid? '$item'" + } elseif {[llength $dotted_key_hierarchy] == 1} { + #dottedkey is only a key - no table component + set table_hierarchy [list] + set leafkey [lindex $dotted_key_hierarchy 0] + } else { + set table_hierarchy [lrange $dotted_key_hierarchy 0 end-1] + set leafkey [lindex $dotted_key_hierarchy end] + } + + #ensure empty tables are still represented in the datastructure + #review - this seems unnecessary? + set pathkeys [list] + foreach k $table_hierarchy { + lappend pathkeys $k + if {![dict exists $datastructure {*}$pathkeys]} { + dict set datastructure {*}$pathkeys [list] + } else { + tomlish::log::notice "to_dict datastructure at key path $pathkeys already had data: [dict get $datastructure {*}$pathkeys]" + } + } + #review? + if {[dict exists $datastructure {*}$table_hierarchy $leafkey]} { + error "Duplicate key '$table_hierarchy $leafkey'. The key already exists at this level in the toml data. The toml data is not valid." + } + + #JMN test 2025 + if {[llength $table_hierarchy]} { + lappend tablenames_seen $table_hierarchy + } + + set keyval_dict [_get_keyval_value $item] + if {![tomlish::dict::is_tomlish_typeval $keyval_dict]} { + lappend tablenames_seen [list {*}$table_hierarchy $leafkey] + lappend tablenames_closed [list {*}$table_hierarchy $leafkey] + + #review - item is an ITABLE - we recurse here without datastructure context :/ + #overwriting keys? todo ? + dict set datastructure {*}$table_hierarchy $leafkey $keyval_dict + } else { + dict set datastructure {*}$table_hierarchy $leafkey $keyval_dict + } + + } + TABLE { + set tablename [lindex $item 1] + #set tablename [::tomlish::utils::tablename_trim $tablename] + set norm_segments [::tomlish::utils::tablename_split $tablename true] ;#true to normalize + if {$norm_segments in $tablenames_seen} { + error "Table name '$tablename' has already been directly defined in the toml data. Invalid." + } + + log::debug "---> to_dict processing item $tag (name: $tablename): $item" + set name_segments [::tomlish::utils::tablename_split $tablename] ;#unnormalized + set last_seg "" + #toml spec rule - all segments mst be non-empty + #note that the results of tablename_split are 'raw' - ie some segments may be enclosed in single or double quotes. + + set table_key_sublist [list] + + foreach normseg $norm_segments { + lappend table_key_sublist $normseg + if {[dict exists $datastructure {*}$table_key_sublist]} { + #It's ok for this key to already exist *if* it was defined by a previous tablename or equivalent + #and if this key is longer + + #consider the following 2 which are legal: + #[table] + #x.y = 3 + #[table.x.z] + #k= 22 + + #equivalent + + #[table] + #[table.x] + #y = 3 + #[table.x.z] + #k=22 + + #illegal + #[table] + #x.y = 3 + #[table.x.y.z] + #k = 22 + ## - we should fail on encountering table.x.y because only table and table.x are effectively tables + + #illegal + #[table] + #x.y = {p=3} + #[table.x.y.z] + #k = 22 + ## we should fail because y is an inline table which is closed to further entries + + + #note: it is not safe to compare normalized tablenames using join! + # e.g a.'b.c'.d is not the same as a.b.c.d + # instead compare {a b.c d} with {a b c d} + # Here is an example where the number of keys is the same, but they must be compared as a list, not a joined string. + #'a.b'.'c.d.e' vs 'a.b.c'.'d.e' + #we need to normalize the tablenames seen so that {"x\ty"} matches {"xy"} + + set sublist_length [llength $table_key_sublist] + set found_testkey 0 + if {$table_key_sublist in $tablenames_seen} { + set found_testkey 1 + } else { + #see if it was defined by a longer entry + foreach seen_table_segments $tablenames_seen { + if {[llength $seen_table_segments] <= $sublist_length} { + continue + } + #each tablenames_seen entry is already a list of normalized segments + + #we could have [a.b.c.d] early on + # followed by [a.b] - which was still defined by the earlier one. + + set seen_longer [lrange $seen_segments 0 [expr {$sublist_length -1}]] + puts stderr "testkey:'$table_key_sublist' vs seen_match:'$seen_longer'" + if {$table_key_sublist eq $seen_longer} { + set found_testkey 1 + } + } + } + + if {$found_testkey == 0} { + #the raw unnormalized tablename might be ok to display in the error message, although it's not the actual dict keyset + set msg "key $table_key_sublist already exists in datastructure, but wasn't defined by a supertable." + append msg \n "tablenames_seen:" \n + foreach ts $tablenames_seen { + append msg " " $ts \n + } + error $msg + } + } + + } + + #ensure empty tables are still represented in the datastructure + set key_sublist [list] + foreach k $norm_segments { + lappend key_sublist $k + if {![dict exists $datastructure {*}$key_sublist]} { + dict set datastructure {*}$key_sublist [list] + } else { + tomlish::log::notice "to_dict datastructure at (TABLE) subkey $key_sublist already had data: [dict get $datastructure {*}$key_sublist]" + } + } + + #We must do this after the key-collision test above! + lappend tablenames_seen $norm_segments + + + log::debug ">>> to_dict >>>>>>>>>>>>>>>>> normalized table key hierarchy : $norm_segments" + + #now add the contained elements + foreach element [lrange $item 2 end] { + set type [lindex $element 0] + log::debug "----> tododict processing $tag subitem $type processing contained element $element" + switch -exact -- $type { + DOTTEDKEY { + set dkey_info [_get_dottedkey_info $element] + #e.g1 keys {x.y y} keys_raw {'x.y' "a\tb"} keys {x.y {a b}} (keys_raw has escape, keys has literal tab char) + #e.g2 keys {x.y y} keys_raw {{"x.y"} "a\tb"} keys {x.y {a b}} (keys_raw has escape, keys has literal tab char) + set dotted_key_hierarchy [dict get $dkey_info keys] + set dkeys [lrange $dotted_key_hierarchy 0 end-1] + set leaf_key [lindex $dotted_key_hierarchy end] + + #ensure empty keys are still represented in the datastructure + set test_keys $norm_segments + foreach k $dkeys { + lappend test_keys $k + if {![dict exists $datastructure {*}$test_keys]} { + dict set datastructure {*}$test_keys [list] + } else { + tomlish::log::notice "to_dict datastructure at (DOTTEDKEY) subkey $test_keys already had data: [dict get $datastructure {*}$test_keys]" + } + } + + if {[dict exists $datastructure {*}$norm_segments {*}$dkeys $leaf_key]} { + error "Duplicate key '$norm_segments $dkeys $leaf_key'. The key already exists at this level in the toml data. The toml data is not valid." + } + set keyval_dict [_get_keyval_value $element] + #keyval_dict is either a {type value } + #or the result from parsing an arbitrary dict from an inline table - which could theoretically look the same at the topmost level + #punk::dict::is_tomlish_typeval can distinguish + puts stdout "to_dict>>> $keyval_dict" + dict set datastructure {*}$norm_segments {*}$dkeys $leaf_key $keyval_dict + #JMN 2025 + lappend tablenames_seen [list {*}$norm_segments {*}$dkeys] + + if {![tomlish::dict::is_tomlish_typeval $keyval_dict]} { + #the value is either empty or or a dict structure with arbitrary (from-user-data) toplevel keys + # inner structure will contain {type value } if all leaves are not empty ITABLES + lappend tablenames_seen [list {*}$norm_segments {*}$dkeys $leaf_key] + #if the keyval_dict is not a simple type x value y - then it's an inline table ? + #if so - we should add the path to the leaf_key as a closed table too - as it's not allowed to have more entries added. + } + + } + NEWLINE - COMMENT - WS { + #ignore + } + default { + error "Sub element of type '$type' not understood in table context. Expected only KEY,DQKEY,SQKEY,NEWLINE,COMMENT,WS" + } + } + } + #now make sure we add an empty value if there were no contained elements! + #!todo. + } + ITABLE { + #SEP??? + set datastructure [list] + foreach element [lrange $item 1 end] { + set type [lindex $element 0] + log::debug "----> tododict processing $tag subitem $type processing contained element $element" + switch -exact -- $type { + DOTTEDKEY { + set dkey_info [_get_dottedkey_info $element] + set dotted_key_hierarchy [dict get $dkey_info keys] + set leaf_key [lindex $dotted_key_hierarchy end] + set dkeys [lrange $dotted_key_hierarchy 0 end-1] + + #ensure empty keys are still represented in the datastructure + set table_keys [list] ;#We don't know the context - next level up will have to check for key collisions? + set test_keys $table_keys + foreach k $dkeys { + lappend test_keys $k + if {![dict exists $datastructure {*}$test_keys]} { + dict set datastructure {*}$test_keys [list] + } else { + tomlish::log::notice "to_dict datastructure at (DOTTEDKEY) subkey $test_keys already had data: [dict get $datastructure {*}$test_keys]" + } + } + + if {[dict exists $datastructure {*}$table_keys {*}$dkeys $leaf_key]} { + error "Duplicate key '$table_keys $dkeys $leaf_key'. The key already exists at this level in the toml data. The toml data is not valid." + } + set keyval_dict [_get_keyval_value $element] + dict set datastructure {*}$table_keys {*}$dkeys $leaf_key $keyval_dict + } + NEWLINE - COMMENT - WS { + #ignore + } + default { + error "Sub element of type '$type' not understood in ITABLE context. Expected only KEY,DQKEY,SQKEY,NEWLINE,COMMENT,WS" + } + } + } + } + ARRAY { + #arrays in toml are allowed to contain mixtures of types + set datastructure [list] + log::debug "--> processing array: $item" + + foreach element [lrange $item 1 end] { + set type [lindex $element 0] + log::debug "----> tododict processing $tag subitem $type processing contained element $element" + switch -exact -- $type { + INT - FLOAT - BOOL - DATETIME { + set value [lindex $element 1] + lappend datastructure [list type $type value $value] + } + STRING { + set value [lindex $element 1] + lappend datastructure [list type $type value [::tomlish::utils::unescape_string $value]] + } + LITERAL { + set value [lindex $element 1] + lappend datastructure [list type $type value $value] + } + ITABLE { + #anonymous table + #lappend datastructure [list type $type value [::tomlish::to_dict [list $element]]] + lappend datastructure [::tomlish::to_dict [list $element]] ;#store itables within arrays as raw dicts (possibly empty) + } + TABLE { + #invalid? shouldn't be output from from_dict - but could manually be constructed as such? review + #doesn't make sense as table needs a name? + #take as synonym for ITABLE? + error "to_dict TABLE within array unexpected" + } + ARRAY - MULTISTRING - MULTILITERAL { + #set value [lindex $element 1] + lappend datastructure [list type $type value [::tomlish::to_dict [list $element]]] + } + WS - SEP - NEWLINE - COMMENT { + #ignore whitespace, commas, newlines and comments + } + default { + error "Unexpected value type '$type' found in array" + } + } + } + } + MULTILITERAL { + #triple squoted string + #first newline stripped only if it is the very first element + #(ie *immediately* following the opening delims) + #All whitespace other than newlines is within LITERALPARTS + # ------------------------------------------------------------------------- + #todo - consider extension to toml to allow indent-aware multiline literals + # how - propose as issue in toml github? Use different delim? e.g ^^^ ? + #e.g + # xxx=?'''abc + # def + # etc + # ''' + # - we would like to trimleft each line to the column following the opening delim + # ------------------------------------------------------------------------- + + log::debug "---> todict processing multiliteral: $item" + set parts [lrange $item 1 end] + if {[lindex $parts 0 0] eq "NEWLINE"} { + set parts [lrange $parts 1 end] ;#skip it + } + for {set idx 0} {$idx < [llength $parts]} {incr idx} { + set element [lindex $parts $idx] + set type [lindex $element 0] + switch -exact -- $type { + LITERALPART { + append stringvalue [lindex $element 1] + } + NEWLINE { + set val [lindex $element 1] + if {$val eq "nl"} { + append stringvalue \n + } else { + append stringvalue \r\n + } + } + default { + error "Unexpected value type '$type' found in multistring" + } + } + } + set datastructure $stringvalue + } + MULTISTRING { + #triple dquoted string + log::debug "---> to_dict processing multistring: $item" + set stringvalue "" + set idx 0 + set parts [lrange $item 1 end] + for {set idx 0} {$idx < [llength $parts]} {incr idx} { + set element [lindex $parts $idx] + set type [lindex $element 0] + #We use STRINGPART in the tomlish representation as a distinct element to STRING - which would imply wrapping quotes to be reinserted + switch -exact -- $type { + STRING { + #todo - do away with STRING ? + #we don't build MULTISTRINGS containing STRING - but should we accept it? + tomlish::log::warn "double quoting a STRING found in MULTISTRING - should be STRINGPART?" + append stringvalue "\"[::tomlish::utils::unescape_string [lindex $element 1]]\"" + } + STRINGPART { + append stringvalue [::tomlish::utils::unescape_string [lindex $element 1]] + } + CONT { + #When the last non-whitespace character on a line is an unescaped backslash, + #it will be trimmed along with all whitespace (including newlines) up to the next non-whitespace character or closing delimiter + # review - we allow some whitespace in stringpart elements - can a stringpart ever be all whitespace? + set next_nl [lsearch -index 0 -start $idx+1 $parts NEWLINE] + if {$next_nl == -1} { + #last line + set non_ws [lsearch -index 0 -start $idx+1 -not $parts WS] + if {$non_ws >= 0} { + append stringvalue "\\" ;#add the sep + } else { + #skip over ws without emitting + set idx [llength $parts] + } + } else { + set parts_til_nl [lrange $parts 0 $next_nl-1] + set non_ws [lsearch -index 0 -start $idx+1 -not $parts_til_nl WS] + if {$non_ws >= 0} { + append stringvalue "\\" + } else { + #skip over ws on this line + set idx $next_nl + #then have to check each subsequent line until we get to first non-whitespace + set trimming 1 + while {$trimming && $idx < [llength $parts]} { + set next_nl [lsearch -index 0 -start $idx+1 $parts NEWLINE] + if {$next_nl == -1} { + #last line + set non_ws [lsearch -index 0 -start $idx+1 -not $parts WS] + if {$non_ws >= 0} { + set idx [expr {$non_ws -1}] + } else { + set idx [llength $parts] + } + set trimming 0 + } else { + set non_ws [lsearch -index 0 -start $idx+1 -not [lrange $parts 0 $next_nl-1] WS] + if {$non_ws >= 0} { + set idx [expr {$non_ws -1}] + set trimming 0 + } else { + set idx $next_nl + #keep trimming + } + } + } + } + } + } + NEWLINE { + #if newline is first element - it is not part of the data of a multistring + if {$idx > 0} { + set val [lindex $element 1] + if {$val eq "nl"} { + append stringvalue \n + } else { + append stringvalue \r\n + } + } + } + WS { + append stringvalue [lindex $element 1] + } + default { + error "Unexpected value type '$type' found in multistring" + } + } + } + set datastructure $stringvalue + } + WS - COMMENT - NEWLINE { + #ignore + } + default { + error "Unexpected tag '$tag' in Tomlish list '$tomlish'" + } + } + } + return $datastructure + } + + + proc _from_dictval_tomltype {parents tablestack keys typeval} { + set type [dict get $typeval type] + set val [dict get $typeval value] + switch -- $type { + ARRAY { + set subitems [list] + foreach item $val { + lappend subitems [_from_dictval [list {*}$parents ARRAY] $tablestack $keys $item] SEP + } + if {[lindex $subitems end] eq "SEP"} { + set subitems [lrange $subitems 0 end-1] + } + return [list ARRAY {*}$subitems] + } + ITABLE { + if {$val eq ""} { + return ITABLE + } else { + return [_from_dictval [list {*}$parents ITABLE] $tablestack $keys $val] + } + } + MULTISTRING { + #value is a raw string that isn't encoded as tomlish + #create a valid toml snippet with the raw value and decode it to the proper tomlish MULTISTRING format + #We need to convert controls in $val to escape sequences - except for newlines + # + #consider an *option* to reformat for long lines? (perhaps overcomplex - byte equiv - but may fold in ugly places) + #we could use a line-length limit to decide when to put in a "line ending backslash" + #and even format it with a reasonable indent so that proper CONT and WS entries are made (?) REVIEW + # + #TODO + set tomlpart "x=\"\"\"\\\n" + append tomlpart $val "\"\"\"" + set tomlish [tomlish::decode::toml $tomlpart] + #e.g if val = " etc\nblah" + #TOMLISH {DOTTEDKEY {{KEY x}} = {MULTISTRING CONT {NEWLINE LF} {WS { }} {STRINGPART etc} {NEWLINE lf} {STRINGPART blah} } } + #lindex 1 3 is the MULTISTRING tomlish list + return [lindex $tomlish 1 3] + } + MULTILITERAL { + #MLL string can contain newlines - but still no control chars + #todo - validate + set tomlpart "x='''\n" + append tomlpart $val ''' + set tomlish [tomlish::decode::toml $tomlpart] + return [lindex $tomlish 1 3] + } + LITERAL { + #from v1.0 spec - "Control characters other than tab are not permitted in a literal string" + #(This rules out raw ANSI SGR - which is somewhat restrictive - but perhaps justified for a config format + # as copy-pasting ansi to a config value is probably not always wise, and it's not something that can be + # easily input via a text editor. ANSI can go in Basic strings using the \e escape if that's accepted v1.1?) + #we could choose to change the type to another format here when encountering invalid chars - but that seems + #like too much magic. We elect to error out and require the dict to have valid data for the types it specifies. + if {[string first ' $val] >=0} { + error "_from_dictval_tomltype error: single quote found in LITERAL - cannot encode dict to TOML-VALID TOMLISH" + } + #detect control chars other than tab + #for this we can use rawstring_to_Bstring_with_escaped_controls - even though this isn't a Bstring + #we are just using the map to detect a difference. + set testval [tomlish::utils::rawstring_to_Bstring_with_escaped_controls $val] + if {$testval ne $val} { + #some escaping would have to be done if this value was destined for a Bstring... + #therefor this string has controls and isn't suitable for a LITERAL according to the specs. + error "_from_dictval_tomltype error: control chars (other than tab) found in LITERAL value - cannot encode dict to TOML-VALID TOMLISH" + } + return [list LITERAL $val] + } + STRING { + return [list STRING [tomlish::utils::rawstring_to_Bstring_with_escaped_controls $val]] + } + INT { + if {![::tomlish::utils::is_int $val]} { + error "_from_dictval_tomltype error: bad INT value '$val' - cannot encode dict to TOML-VALID TOMLISH" + } + return [list INT $val] + } + FLOAT { + if {![::tomlish::utils::is_float $val]} { + error "_from_dictval_tomltype error: bad FLOAT value '$val' - cannot encode dict to TOML-VALID TOMLISH" + } + return [list FLOAT $val] + } + default { + if {$type ni [::tomlish::tags]} { + error "_from_dictval_tomltype error: Unrecognised typename '$type' in {type value } - cannot encode dict to TOML-VALID TOMLISH" + } + return [list $type $val] + } + } + } + + proc _from_dictval {parents tablestack keys vinfo} { + set k [lindex $keys end] + if {[regexp {\s} $k] || [string first . $k] >= 0} {} + if {![::tomlish::utils::is_barekey $k]} { + #Any dot in the key would have been split by to_dict - so if it's present here it's part of this key - not a level separator! + #requires quoting + #we'll use a basic mechanism for now to determine the type of quoting - whether it has any single quotes or not. + #todo - more? + #For keys - we currently (2025) are only allowed barekeys,basic strings and literal strings. (no multiline forms) + if {[string first ' $k] >=0} { + #basic string + } else { + #literal string + set K_PART [list SQKEY $k] + } + } else { + set K_PART [list KEY $k] + } + puts stderr "---parents:'$parents' keys:'$keys' vinfo: $vinfo---" + puts stderr "---tablestack: $tablestack---" + set result [list] + set lastparent [lindex $parents end] + if {$lastparent in [list "" do_inline]} { + if {[tomlish::dict::is_tomlish_typeval $vinfo]} { + set type [dict get $vinfo type] + #treat ITABLE differently? + set sublist [_from_dictval_tomltype $parents $tablestack $keys $vinfo] + lappend result DOTTEDKEY [list $K_PART {WS { }}] = {WS { }} $sublist {NEWLINE lf} + } else { + #set result [list TABLE $k {NEWLINE lf}] + if {$vinfo ne ""} { + + #set result [list DOTTEDKEY [list [list KEY $k]] = ] + #set records [list ITABLE] + + set last_tomltype_posn [tomlish::dict::last_tomltype_posn $vinfo] + + if {$lastparent eq "do_inline"} { + set result [list DOTTEDKEY [list $K_PART] =] + set records [list ITABLE] + } else { + #review - quoted k ?? + set result [list TABLE $k {NEWLINE lf}] + set tablestack [list {*}$tablestack [list T $k]] + set records [list] + } + + + + set lastidx [expr {[dict size $vinfo] -1}] + set dictidx 0 + dict for {vk vv} $vinfo { + if {[regexp {\s} $vk] || [string first . $vk] >= 0} { + set VK_PART [list SQKEY $vk] + } else { + set VK_PART [list KEY $vk] + } + if {[tomlish::dict::is_tomlish_typeval $vv]} { + #type x value y + set sublist [_from_dictval_tomltype $parents $tablestack $keys $vv] + set record [list DOTTEDKEY [list $VK_PART {WS { }}] = {WS { }} $sublist] + } else { + if {$vv eq ""} { + #experimental + if {[lindex $parents 0] eq "" && $dictidx > $last_tomltype_posn} { + puts stderr "_from_dictval could uninline KEY $vk (tablestack:$tablestack)" + #set tname [tomlish::dict::name_from_tablestack [list {*}$tablestack [list T $vk]]] + set tname [join [list {*}$keys $vk] .] + set record [list TABLE $tname {NEWLINE lf}] + set tablestack [list {*}$tablestack [list T $vk]] + } else { + set record [list DOTTEDKEY [list $VK_PART] = ITABLE] + set tablestack [list {*}$tablestack [list I $vk]] + } + } else { + if { 0 } { + #experiment.. sort of getting there. + if {[lindex $parents 0] eq "" && $dictidx > $last_tomltype_posn} { + puts stderr "_from_dictval could uninline2 KEYS [list {*}$keys $vk] (tablestack:$tablestack)" + set tname [join [list {*}$keys $vk] .] + set record [list TABLE $tname {NEWLINE lf}] + set tablestack [list {*}$tablestack [list T $vk]] + + #review - todo? + set dottedkey_value [_from_dictval [list {*}$parents TABLE] $tablestack [list {*}$keys $vk] $vv] + lappend record {*}$dottedkey_value + + } else { + set dottedkey_value [_from_dictval [list {*}$parents ITABLE] $tablestack [list {*}$keys $vk] $vv] + set record [list DOTTEDKEY [list $VK_PART] = $dottedkey_value] + } + } else { + set dottedkey_value [_from_dictval [list {*}$parents ITABLE] $tablestack [list {*}$keys $vk] $vv] + set record [list DOTTEDKEY [list $VK_PART] = $dottedkey_value] + } + } + } + if {$dictidx != $lastidx} { + #lappend record SEP + if {$lastparent eq "do_inline"} { + lappend record SEP + } else { + lappend record {NEWLINE lf} + } + } + lappend records $record + incr dictidx + } + if {$lastparent eq "do_inline"} { + lappend result $records {NEWLINE lf} + } else { + lappend result {*}$records {NEWLINE lf} + } + } else { + if {$lastparent eq "do_inline"} { + lappend result DOTTEDKEY [list [list KEY $k]] = ITABLE {NEWLINE lf} + } else { + lappend result TABLE $k {NEWLINE lf} + } + } + } + } else { + #lastparent is not toplevel "" or "do_inline" + if {[tomlish::dict::is_tomlish_typeval $vinfo]} { + #type x value y + set sublist [_from_dictval_tomltype $parents $tablestack $keys $vinfo] + lappend result {*}$sublist + } else { + if {$lastparent eq "TABLE"} { + #review + dict for {vk vv} $vinfo { + set dottedkey_value [_from_dictval [list {*}$parents DOTTEDKEY] $tablestack [list {*}$keys $vk] $vv] + lappend result [list DOTTEDKEY [list [list KEY $vk]] = $dottedkey_value {NEWLINE lf}] + } + } else { + if {$vinfo ne ""} { + set lastidx [expr {[dict size $vinfo] -1}] + set dictidx 0 + set sub [list] + #REVIEW + #set result $lastparent ;#e.g sets ITABLE + set result ITABLE + set last_tomltype_posn [tomlish::dict::last_tomltype_posn $vinfo] + dict for {vk vv} $vinfo { + if {[regexp {\s} $vk] || [string first . $vk] >=0} { + set VK_PART [list SQKEY $vk] + } else { + set VK_PART [list KEY $vk] + } + if {[tomlish::dict::is_tomlish_typeval $vv]} { + #type x value y + set sublist [_from_dictval_tomltype $parents $tablestack $keys $vv] + set record [list DOTTEDKEY [list $VK_PART] = $sublist] + } else { + if {$vv eq ""} { + #can't just uninline at this level + #we need a better method to query main dict for uninlinability at each level + # (including what's been inlined already) + #if {[lindex $parents 0] eq "" && $dictidx > $last_tomltype_posn} { + # puts stderr "_from_dictval uninline2 KEY $keys" + # set tname [join [list {*}$keys $vk] .] + # set record [list TABLE $tname {NEWLINE lf}] + # set tablestack [list {*}$tablestack [list T $vk]] + #} else { + set record [list DOTTEDKEY [list $VK_PART] = ITABLE] + #} + } else { + #set sub [_from_dictval ITABLE $vk $vv] + set dottedkey_value [_from_dictval [list {*}$parents ITABLE] $tablestack [list {*}$keys $vk] $vv] + #set record [list DOTTEDKEY [list $VK_PART] = ITABLE $dottedkey_value] + set record [list DOTTEDKEY [list $VK_PART] = $dottedkey_value] + } + } + if {$dictidx != $lastidx} { + lappend record SEP + } + lappend result $record + incr dictidx + } + } else { + puts stderr "table x-1" + lappend result DOTTEDKEY [list $K_PART] = ITABLE + } + } + } + } + return $result + } + + + proc from_dict {d} { + #consider: + # t1={a=1,b=2} + # x = 1 + #If we represent t1 as an expanded table we get + # [t1] + # a=1 + # b=2 + # x=1 + # --- which is incorrect - as x was a toplevel key like t1! + #This issue doesn't occur if x is itself an inline table + # t1={a=1,b=2} + # x= {no="problem"} + # + # (or if we were to reorder x to come before t1) + + #As the dictionary form doesn't distinguish the structure used to create tables {[table1]\nk=v} vs inline {table1={k=v}} + #Without a solution, from_dict would have to always produce the inline form for toplevel tables unless we allowed re-ordering, + #which is unpreferred here. + + #A possible solution: + #scan the top level to see if all (trailing) elements are themselves dicts + # (ie not of form {type XXX value yyy}) + # + # A further point is that if all root level values are at the 'top' - we can treat lower table-like structures as {[table]} elements + #ie we don't need to force do_inline if all the 'simple' keys are before any compound keys + + #set root_has_values 0 + #approach 1) - the naive approach - forces inline when not always necessary + #dict for {k v} $d { + # if {[llength $v] == 4 && [lindex $v 0] eq "type"} { + # set root_has_values 1 + # break + # } + #} + + + #approach 2) - track the position of last {type x value y} in the dictionary built by to_dict + # - still not perfect. Inlines dotted tables unnecessarily + #This means from_dict doesn't produce output optimal for human editing. + set last_simple [tomlish::dict::last_tomltype_posn $d] + + + ## set parent "do_inline" ;#a value used in _from_dictval to distinguish from "" or other context based parent values + #Any keys that are themselves tables - will need to be represented inline + #to avoid reordering, or incorrect assignment of plain values to the wrong table. + + ## set parent "" + #all toplevel keys in the dict structure can represent subtables. + #we are free to use {[tablename]\n} syntax for toplevel elements. + + + set tomlish [list TOMLISH] + set dictposn 0 + set tablestack [list [list T root]] ;#todo + dict for {t tinfo} $d { + if {$last_simple > $dictposn} { + set parents [list do_inline] + } else { + set parents [list ""] + } + set keys [list $t] + set trecord [_from_dictval $parents $tablestack $keys $tinfo] + lappend tomlish $trecord + incr dictposn + } + return $tomlish + } + + proc json_to_toml {json} { + #*** !doctools + #[call [fun json_to_toml] [arg json]] + #[para] + + set tomlish [::tomlish::from_json $json] + set toml [::tomlish::to_toml $tomlish] + } + + #TODO use huddle? + proc from_json {json} { + #set jstruct [::tomlish::json_struct $json] + #return [::tomlish::from_json_struct $jstruct] + package require huddle + package require huddle::json + set h [huddle::json::json2huddle parse $json] + + } + + proc from_json_struct {jstruct} { + package require fish::json_toml + return [fish::json_toml::jsonstruct2tomlish $jstruct] + } + + proc toml_to_json {toml} { + set tomlish [::tomlish::from_toml $toml] + return [::tomlish::get_json $tomlish] + } + + proc get_json {tomlish} { + package require fish::json + set d [::tomlish::to_dict $tomlish] + #return [::tomlish::dict_to_json $d] + return [fish::json::from "struct" $d] + } + + + + + #*** !doctools + #[list_end] [comment {--- end definitions namespace tomlish ---}] +} +# ++ +++ +++ +++ +++ +++ +++ +++ +++ +++ +++ + +namespace eval tomlish::build { + #STRING,INT,FLOAT,BOOL, DATETIME - simple wrappers for completeness + # take a value of the appropriate type and wrap as a tomlish tagged item + proc STRING {s} { + return [list STRING [::tomlish::utils::rawstring_to_Bstring_with_escaped_controls $s]] + } + proc LITERAL {litstring} { + error todo + } + + proc INT {i} { + #whole numbers, may be prefixed with a + or - + #Leading zeros are not allowed + #Hex,octal binary forms are allowed (toml 1.0) + #We will error out on encountering commas, as commas are interpreted differently depending on locale (and don't seem to be supported in the toml spec anyway) + #!todo - Tcl can handle bignums - bigger than a 64bit signed long as specified in toml. + # - We should probably raise an error for number larger than this and suggest the user supply it as a string? + if {[tcl::string::last , $i] > -1} { + error "Unable to interpret '$i' as an integer. Use underscores if you need a thousands separator [::tomlish::parse::report_line]" + } + if {![::tomlish::utils::int_validchars $i]} { + error "Unable to interpret '$i' as an integer. Only 0-9 + 1 _ characters are acceptable. [::tomlish::parse::report_line]" + } + + if {[::tomlish::utils::is_int $i]} { + return [list INT $i] + } else { + error "'$i' is not a valid integer as per the Toml spec. [::tomlish::parse::report_line]" + } + + } + + proc FLOAT {f} { + #convert any non-lower case variants of special values to lowercase for Toml + if {[::tcl::string::tolower $f] in {nan +nan -nan inf +inf -inf}} { + return [list FLOAT [tcl::string::tolower $f]] + } + if {[::tomlish::utils::is_float $f]} { + return [list FLOAT $f] + } else { + error "Unable to interpret '$f' as Toml float. Check your input, or check that tomlish is able to handle all Toml floats properly [::tomlish::parse::report_line]" + } + } + + proc DATETIME {str} { + if {[::tomlish::utils::is_datetime $str]} { + return [list DATETIME $str] + } else { + error "Unable to interpret '$str' as Toml datetime. Check your input, or check that tomlish is able to handle all Toml datetimes properly [::tomlish::parse::report_line]" + } + } + + proc BOOLEAN {b} { + #convert any Tcl-acceptable boolean to boolean as accepted by toml - lower case true/false + if {![tcl::string::is boolean -strict $b]} { + error "Unable to convert '$b' to Toml boolean true|false. [::tomlish::parse::report_line]" + } else { + if {$b && 1} { + return [::list BOOL true] + } else { + return [::list BOOL false] + } + } + } + + #REVIEW + #Take tablename followed by + # a) *tomlish* name-value pairs e.g table mydata [list KEY item11 = [list STRING "test"]] {KEY item2 = [list INT 1]} + # (accept also key value {STRING }) + # b) simple 2-element tcl lists being name & *simple* value pairs for which basic heuristics will be used to determine types + proc _table {name args} { + set pairs [list] + foreach t $args { + if {[llength $t] == 4} { + if {[tcl::string::tolower [lindex $t 0]] ne "key" || [tcl::string::tolower [lindex $t 2]] ni "= value"} { + error "Only items tagged as KEY = currently accepted as name-value pairs for table command" + } + lassign $t _k keystr _eq valuepart + if {[llength $valuepart] != 2} { + error "supplied value must be typed. e.g {INT 1} or {STRING test}" + } + lappend pairs [list KEY $keystr = $valuepart] + } elseif {[llength $t] == 2} { + #!todo - type heuristics + lassign $t n v + lappend pairs [list KEY $n = [list STRING $v]] + } else { + error "'KEY = { toml but + # the first newline is not part of the data. + # we elect instead to maintain a basic LITERALPART that must not contain newlines.. + # and to compose MULTILITERAL of multiple NEWLINE LITERALPART parts, + #with the datastructure representation dropping the first newline (if immediately following opening delim) when building the value. + set literal "" + foreach part [lrange $item 1 end] { + append literal [::tomlish::encode::tomlish [list $part] $nextcontext] + } + append toml '''$literal''' + } + INT - + BOOL - + FLOAT - + DATETIME { + append toml [lindex $item 1] + } + INCOMPLETE { + error "cannot process tomlish term tagged as INCOMPLETE" + } + COMMENT { + append toml "#[lindex $item 1]" + } + BOM { + #Byte Order Mark may appear at beginning of a file. Needs to be preserved. + append toml "\uFEFF" + } + default { + error "Not a properly formed 'tomlish' taggedlist.\n '$list'\n Unknown tag '[lindex $item 0]'. See output of \[tomlish::tags\] command." + } + } + + } + return $toml + } + + + + #*** !doctools + #[list_end] [comment {--- end definitions namespace tomlish::encode ---}] +} +#fish toml from tomlish + +#(encode tomlish as toml) +interp alias {} tomlish::to_toml {} tomlish::encode::tomlish + +# + + +namespace eval tomlish::decode { + #*** !doctools + #[subsection {Namespace tomlish::decode}] + #[para] + #[list_begin definitions] + + #return a Tcl list of tomlish tokens + #i.e get a standard list of all the toml terms in string $s + #where each element of the list is a *tomlish* term.. i.e a specially 'tagged' Tcl list. + #(simliar to a tcl 'Huddle' - but also supporting whitespace preservation) + # ---------------------------------------------------------------------------------------------- + # NOTE: the production of tomlish from toml source doesn't indicate the toml source was valid!!! + # e.g we deliberately don't check certain things such as duplicate table declarations here. + # ---------------------------------------------------------------------------------------------- + #Part of the justification for this is that as long as the syntax is toml shaped - we can load files which violate certain rules and allow programmatic manipulation. + # (e.g perhaps a toml editor to highlight violations for fixing) + # A further stage is then necessary to load the tomlish tagged list into a data structure more suitable for efficient query/reading. + # e.g dicts or an object oriented structure + #Note also - *no* escapes in quoted strings are processed. This is up to the datastructure stage + #e.g to_dict will substitute \r \n \uHHHH \UHHHHHHH etc + #This is important for tomlish to maintain the ability to perform competely lossless round-trips from toml to tomlish and back to toml. + # (which is handy for testing as well as editing some part of the structure with absolutely no effect on other parts of the document) + #If we were to unescape a tab character for example + # - we have no way of knowing if it was originally specified as \t \u0009 or \U00000009 or directly as a tab character. + # For this reason, we also do absolutely no line-ending transformations based on platform. + # All line-endings are maintained as is, and even a file with mixed lf crlf line-endings will be correctly interpreted and can be 'roundtripped' + + proc toml {args} { + #*** !doctools + #[call [fun toml] [arg arg...]] + #[para] return a Tcl list of tomlish tokens + + set s [join $args \n] + + namespace upvar ::tomlish::parse is_parsing is_parsing + set is_parsing 1 + + if {[info command ::tomlish::parse::spacestack] eq "::tomlish::parse::spacestack"} { + tomlish::parse::spacestack destroy + } + struct::stack ::tomlish::parse::spacestack + + namespace upvar ::tomlish::parse last_space_action last_space_action + namespace upvar ::tomlish::parse last_space_type last_space_type + + namespace upvar ::tomlish::parse tok tok + set tok "" + + namespace upvar ::tomlish::parse type type + namespace upvar ::tomlish::parse tokenType tokenType + ::tomlish::parse::set_tokenType "" + namespace upvar ::tomlish::parse tokenType_list tokenType_list + set tokenType [list] ;#Flat (un-nested) list of tokentypes found + + namespace upvar ::tomlish::parse lastChar lastChar + set lastChar "" + + + set result "" + namespace upvar ::tomlish::parse nest nest + set nest 0 + + namespace upvar ::tomlish::parse v v ;#array keyed on nest level + + + set v(0) {TOMLISH} + array set s0 [list] ;#whitespace data to go in {SPACE {}} element. + set parentlevel 0 + + namespace upvar ::tomlish::parse i i + set i 0 + + namespace upvar ::tomlish::parse state state + + namespace upvar ::tomlish::parse braceCount braceCount + set barceCount 0 + namespace upvar ::tomlish::parse bracketCount bracketCount + set bracketCount 0 + + set sep 0 + set r 1 + namespace upvar ::tomlish::parse token_waiting token_waiting + set token_waiting [dict create] ;#if ::tok finds a *complete* second token during a run, it will put the 2nd one here to be returned by the next call. + + + set state "table-space" + ::tomlish::parse::spacestack push {type space state table-space} + namespace upvar ::tomlish::parse linenum linenum;#'line number' of input data. (incremented for each literal linefeed - but not escaped ones in data) + set linenum 1 + + set ::tomlish::parse::state_list [list] + try { + while {$r} { + set r [::tomlish::parse::tok $s] + #puts stdout "got tok: '$tok' while parsing string '$s' " + set next_tokenType_known 0 ;#whether we begin a new token here based on what terminated the token result of 'tok' + + + #puts "got token: '$tok' tokenType='$tokenType'. while v($nest) = [set v($nest)]" + #puts "-->tok: $tok tokenType='$tokenType'" + set prevstate $state + set transition_info [::tomlish::parse::goNextState $tokenType $tok $state] + #review goNextState could perform more than one space_action + set space_action [dict get $transition_info space_action] + set newstate [dict get $transition_info newstate] ;#use of 'newstate' vs 'state' makes code clearer below + + if {[tcl::string::match "err-*" $state]} { + ::tomlish::log::warn "---- State error in state $prevstate for tokenType: $tokenType token value: $tok. $state aborting parse. [tomlish::parse::report_line]" + lappend v(0) [list ERROR tokentype $tokenType state $prevstate to $state leveldata [set v($nest)]] + return $v(0) + } + # --------------------------------------------------------- + #NOTE there may already be a token_waiting at this point + #set_token_waiting can raise an error here, + # in which case the space_action branch needs to be rewritten to handle the existing token_waiting + # --------------------------------------------------------- + + if {$space_action eq "pop"} { + #pop_trigger_tokens: newline tablename endarray endinlinetable + #note a token is a pop trigger depending on context. e.g first newline during keyval is a pop trigger. + set parentlevel [expr {$nest -1}] + set do_append_to_parent 1 ;#most tokens will leave this alone - but some like squote_seq need to do their own append + switch -exact -- $tokenType { + squote_seq { + #### + set do_append_to_parent 0 ;#mark false to indicate we will do our own appends if needed + #Without this - we would get extraneous empty list entries in the parent + # - as the xxx-squote-space isn't a space level from the toml perspective + # - the use of a space is to give us a hook here to (possibly) integrate extra quotes into the parent space when we pop + switch -- $tok { + ' { + tomlish::parse::set_token_waiting type startsquote value $tok complete 1 startindex [expr {$i -1}] + } + '' { + #review - we should perhaps return double_squote instead? + #tomlish::parse::set_token_waiting type literal value "" complete 1 + tomlish::parse::set_token_waiting type double_squote value "" complete 1 startindex [expr {$i - 2}] + } + ''' { + #### + #if already an eof in token_waiting - set_token_waiting will insert before it + tomlish::parse::set_token_waiting type triple_squote value $tok complete 1 startindex [expr {$i - 3}] + } + '''' { + switch -exact -- $prevstate { + leading-squote-space { + error "---- 4 squotes from leading-squote-space - shouldn't get here" + #we should have emitted the triple and left the last for next loop + } + trailing-squote-space { + tomlish::parse::set_token_waiting type triple_squote value $tok complete 1 startindex [expr {$i - 4}] + #todo integrate left squote with nest data at this level + set lastpart [lindex $v($parentlevel) end] + switch -- [lindex $lastpart 0] { + LITERALPART { + set newval "[lindex $lastpart 1]'" + set parentdata $v($parentlevel) + lset parentdata end [list LITERALPART $newval] + set v($parentlevel) $parentdata + } + NEWLINE { + lappend v($parentlevel) [list LITERALPART "'"] + } + MULTILITERAL { + #empty + lappend v($parentlevel) [list LITERALPART "'"] + } + default { + error "--- don't know how to integrate extra trailing squote with data $v($parentlevel)" + } + } + } + default { + error "--- unexpected popped due to squote_seq but came from state '$prevstate' should have been leading-squote-space or trailing-squote-space" + } + } + } + ''''' { + switch -exact -- $prevstate { + leading-squote-space { + error "---- 5 squotes from leading-squote-space - shouldn't get here" + #we should have emitted the triple and left the following squotes for next loop + } + trailing-squote-space { + tomlish::parse::set_token_waiting type triple_squote value $tok complete 1 startindex [expr {$i-5}] + #todo integrate left 2 squotes with nest data at this level + set lastpart [lindex $v($parentlevel) end] + switch -- [lindex $lastpart 0] { + LITERALPART { + set newval "[lindex $lastpart 1]''" + set parentdata $v($parentlevel) + lset parentdata end [list LITERALPART $newval] + set v($parentlevel) $parentdata + } + NEWLINE { + lappend v($parentlevel) [list LITERALPART "''"] + } + MULTILITERAL { + lappend v($parentlevel) [list LITERALPART "''"] + } + default { + error "--- don't know how to integrate extra trailing 2 squotes with data $v($parentlevel)" + } + } + } + default { + error "--- unexpected popped due to squote_seq but came from state '$prevstate' should have been leading-squote-space or trailing-squote-space" + } + } + } + } + puts stderr "tomlish::decode::toml ---- HERE squote_seq pop <$tok>" + } + triple_squote { + #presumably popping multiliteral-space + ::tomlish::log::debug "---- triple_squote for last_space_action pop leveldata: $v($nest)" + set merged [list] + set lasttype "" + foreach part $v($nest) { + switch -exact -- [lindex $part 0] { + MULTILITERAL { + lappend merged $part + } + LITERALPART { + if {$lasttype eq "LITERALPART"} { + set prevpart [lindex $merged end] + lset prevpart 1 [lindex $prevpart 1][lindex $part 1] + lset merged end $prevpart + } else { + lappend merged $part + } + } + NEWLINE { + #note that even though first newline ultimately gets stripped from multiliterals - that isn't done here + #we still need the first one for roundtripping. The datastructure stage is where it gets stripped. + lappend merged $part + } + default { + error "---- triple_squote unhandled part type [lindex $part 0] unable to merge leveldata: $v($next)" + } + } + set lasttype [lindex $part 0] + } + set v($nest) $merged + } + equal { + #pop caused by = + switch -exact -- $prevstate { + dottedkey-space { + tomlish::log::debug "---- equal ending dottedkey-space for last_space_action pop" + #re-emit for parent space + tomlish::parse::set_token_waiting type equal value = complete 1 startindex [expr {$i-1}] + } + dottedkey-space-tail { + #experiment? + tomlish::log::debug "---- equal ending dottedkey-space-tail for last_space_action pop" + #re-emit for parent space + tomlish::parse::set_token_waiting type equal value = complete 1 startindex [expr {$i-1}] + } + } + } + newline { + incr linenum + lappend v($nest) [list NEWLINE $tok] + } + tablename { + #note: a tablename only 'pops' if we are greater than zero + error "---- tablename pop should already have been handled as special case zeropoppushspace in goNextState" + } + tablearrayname { + #!review - tablearrayname different to tablename regarding push/pop? + #note: a tablename only 'pops' if we are greater than zero + error "---- tablearrayname pop should already have been handled as special case zeropoppushspace in goNextState" + } + endarray { + #nothing to do here. + } + comma { + #comma for inline table will pop the keyvalue space + lappend v($nest) "SEP" + } + endinlinetable { + ::tomlish::log::debug "---- endinlinetable for last_space_action pop" + } + endmultiquote { + ::tomlish::log::debug "---- endmultiquote for last_space_action 'pop'" + } + default { + error "---- unexpected tokenType '$tokenType' for last_space_action 'pop'" + } + } + if {$do_append_to_parent} { + #e.g squote_seq does it's own appends as necessary - so won't get here + lappend v($parentlevel) [set v($nest)] + } + + incr nest -1 + + } elseif {$last_space_action eq "push"} { + set prevnest $nest + incr nest 1 + set v($nest) [list] + # push_trigger_tokens: barekey dquotedkey startinlinetable startarray tablename tablearrayname + + + switch -exact -- $tokenType { + squote_seq_begin { + #### + if {[dict exists $transition_info starttok] && [dict get $transition_info starttok] ne ""} { + lassign [dict get $transition_info starttok] starttok_type starttok_val + set next_tokenType_known 1 + ::tomlish::parse::set_tokenType $starttok_type + set tok $starttok_val + } + } + squotedkey { + switch -exact -- $prevstate { + table-space - itable-space { + set v($nest) [list DOTTEDKEY] + } + } + #todo - check not something already waiting? + tomlish::parse::set_token_waiting type $tokenType value $tok complete 1 startindex [expr {$i -[tcl::string::length $tok]}] ;#re-submit token in the newly pushed space + } + dquotedkey { + switch -exact -- $prevstate { + table-space - itable-space { + set v($nest) [list DOTTEDKEY] + } + } + #todo - check not something already waiting? + tomlish::parse::set_token_waiting type $tokenType value $tok complete 1 startindex [expr {$i -[tcl::string::length $tok]}] ;#re-submit token in the newly pushed space + } + XXXdquotedkey - XXXitablequotedkey { + #todo + set v($nest) [list DQKEY $tok] ;#$tok is the keyname + } + barekey { + switch -exact -- $prevstate { + table-space - itable-space { + set v($nest) [list DOTTEDKEY] + } + } + #todo - check not something already waiting? + set waiting [tomlish::parse::get_token_waiting] + if {[llength $waiting]} { + set i [dict get $waiting startindex] + tomlish::parse::clear_token_waiting + tomlish::parse::set_token_waiting type $tokenType value $tok complete 1 startindex [expr {$i -[tcl::string::length $tok]}] ;#re-submit token in the newly pushed space + } else { + tomlish::parse::set_token_waiting type $tokenType value $tok complete 1 startindex [expr {$i -[tcl::string::length $tok]}] ;#re-submit token in the newly pushed space + } + } + startsquote { + #JMN + set next_tokenType_known 1 + ::tomlish::parse::set_tokenType "squotedkey" + set tok "" + } + tablename { + #note: we do not use the output of tomlish::tablename_trim to produce a tablename for storage in the tomlish list! + #The tomlish list is intended to preserve all whitespace (and comments) - so a roundtrip from toml file to tomlish + # back to toml file will be identical. + #It is up to the datastructure stage to normalize and interpret tomlish for programmatic access. + # we call tablename_trim here only to to validate that the tablename data is well-formed at the outermost level, + # so we can raise an error at this point rather than create a tomlish list with obviously invalid table names. + + #todo - review! It's arguable that we should not do any validation here, and just store even incorrect raw tablenames, + # so that the tomlish list is more useful for say a toml editor. Consider adding an 'err' tag to the appropriate place in the + # tomlish list? + + set test_only [::tomlish::utils::tablename_trim $tok] + ::tomlish::log::debug "---- trimmed (but not normalized) tablename: '$test_only'" + set v($nest) [list TABLE $tok] ;#$tok is the *raw* table name + #note also that equivalent tablenames may have different toml representations even after being trimmed! + #e.g ["x\t\t"] & ["x "] (tab escapes vs literals) + #These will show as above in the tomlish list, but should normalize to the same tablename when used as keys by the datastructure stage. + } + tablearrayname { + set test_only [::tomlish::utils::tablename_trim $tok] + puts stdout "trimmed (but not normalized) tablearrayname: '$test_only'" + set v($nest) [list TABLEARRAY $tok] ;#$tok is the *raw* tablearray name + } + startarray { + set v($nest) [list ARRAY] ;#$tok is just the opening bracket - don't output. + } + startinlinetable { + set v($nest) [list ITABLE] ;#$tok is just the opening curly brace - don't output. + } + startmultiquote { + ::tomlish::log::debug "---- push trigger tokenType startmultiquote" + set v($nest) [list MULTISTRING] ;#container for STRINGPART, WS, CONT, NEWLINE + } + triple_squote { + ::tomlish::log::debug "---- push trigger tokenType triple_squote" + set v($nest) [list MULTILITERAL] ;#container for NEWLINE,LITERAL + } + default { + error "---- push trigger tokenType '$tokenType' not yet implemented" + } + } + + } else { + #no space level change + switch -exact -- $tokenType { + squotedkey { + puts "---- squotedkey in state $prevstate (no space level change)" + lappend v($nest) [list SQKEY $tok] + } + dquotedkey { + puts "---- dquotedkey in state $prevstate (no space level change)" + lappend v($nest) [list DQKEY $tok] + } + barekey { + lappend v($nest) [list KEY $tok] + } + dotsep { + lappend v($nest) [list DOTSEP] + } + starttablename { + #$tok is triggered by the opening bracket and sends nothing to output + } + starttablearrayname { + #$tok is triggered by the double opening brackets and sends nothing to output + } + tablename - tablenamearray { + error "---- did not expect 'tablename/tablearrayname' without space level change (no space level change)" + #set v($nest) [list TABLE $tok] + } + endtablename - endtablearrayname { + #no output into the tomlish list for this token + } + startinlinetable { + puts stderr "---- decode::toml error. did not expect startinlinetable without space level change (no space level change)" + } + startquote { + switch -exact -- $newstate { + string-state { + set next_tokenType_known 1 + ::tomlish::parse::set_tokenType "string" + set tok "" + } + quoted-key { + set next_tokenType_known 1 + ::tomlish::parse::set_tokenType "dquotedkey" + set tok "" + } + XXXitable-quoted-key { + set next_tokenType_known 1 + ::tomlish::parse::set_tokenType "itablequotedkey" + set tok "" + } + default { + error "---- startquote switch case not implemented for nextstate: $newstate (no space level change)" + } + } + } + startsquote { + switch -exact -- $newstate { + literal-state { + set next_tokenType_known 1 + ::tomlish::parse::set_tokenType "literal" + set tok "" + } + squoted-key { + set next_tokenType_known 1 + ::tomlish::parse::set_tokenType "squotedkey" + set tok "" + } + multiliteral-space { + #false alarm squote returned from squote_seq pop + ::tomlish::log::debug "---- adding lone squote to own LITERALPART nextstate: $newstate (no space level change)" + #(single squote - not terminating space) + lappend v($nest) [list LITERALPART '] + #may need to be joined on pop if there are neighbouring LITERALPARTs + } + default { + error "---- startsquote switch case not implemented for nextstate: $newstate (no space level change)" + } + } + } + startmultiquote { + #review + puts stderr "---- got startmultiquote in state $prevstate (no space level change)" + set next_tokenType_known 1 + ::tomlish::parse::set_tokenType "stringpart" + set tok "" + } + endquote { + #nothing to do? + set tok "" + } + endsquote { + set tok "" + } + endmultiquote { + #JMN!! + set tok "" + } + string { + lappend v($nest) [list STRING $tok] ;#directly wrapped in dquotes + } + literal { + lappend v($nest) [list LITERAL $tok] ;#directly wrapped in squotes + } + double_squote { + switch -exact -- $prevstate { + keyval-value-expected { + lappend v($nest) [list LITERAL ""] + } + multiliteral-space { + #multiliteral-space to multiliteral-space + lappend v($nest) [list LITERALPART ''] + } + default { + error "--- unhandled tokenType '$tokenType' when transitioning from state $prevstate to $newstate [::tomlish::parse::report_line] (no space level change)" + } + } + } + multistring { + #review + lappend v($nest) [list MULTISTRING $tok] + } + stringpart { + lappend v($nest) [list STRINGPART $tok] ;#will not get wrapped in dquotes directly + } + multiliteral { + lappend v($nest) [LIST MULTILITERAL $tok] + } + literalpart { + lappend v($nest) [list LITERALPART $tok] ;#will not get wrapped in squotes directly + } + itablequotedkey { + + } + untyped_value { + #we can't determine the type of unquoted values (int,float,datetime,bool) until the entire token was read. + if {$tok in {true false}} { + set tag BOOL + } elseif {[::tomlish::utils::is_int $tok]} { + set tag INT + } elseif {[::tomlish::utils::is_float $tok]} { + set tag FLOAT + } elseif {[::tomlish::utils::is_datetime $tok]} { + set tag DATETIME + } else { + error "---- Unable to interpret '$tok' as Boolean, Integer, Float or Datetime as per the toml specs. [tomlish::parse::report_line] (no space level change)" + } + lappend v($nest) [list $tag $tok] + + } + comment { + #puts stdout "----- comment token returned '$tok'------" + lappend v($nest) [list COMMENT "$tok"] + } + equal { + #we append '=' to the nest so that any surrounding whitespace is retained. + lappend v($nest) = + } + comma { + lappend v($nest) SEP + } + newline { + incr linenum + lappend v($nest) [list NEWLINE $tok] + } + whitespace { + lappend v($nest) [list WS $tok] + } + continuation { + lappend v($nest) CONT + } + bom { + lappend v($nest) BOM + } + eof { + #ok - nothing more to add to the tomlish list. + #!todo - check previous tokens are complete/valid? + } + default { + error "--- unknown tokenType '$tokenType' during state $prevstate [::tomlish::parse::report_line] (no space level change)" + } + } + } + + if {!$next_tokenType_known} { + ::tomlish::log::notice "---- tomlish::decode::toml - current tokenType:$tokenType Next token type not known" + ::tomlish::parse::set_tokenType "" + set tok "" + } + + if {$state eq "end-state"} { + break + } + + + } + + #while {$nest > 0} { + # lappend v([expr {$nest -1}]) [set v($nest)] + # incr nest -1 + #} + while {[::tomlish::parse::spacestack size] > 1} { + ::tomlish::parse::spacestack pop + lappend v([expr {$nest -1}]) [set v($nest)] + incr nest -1 + + #set parent [spacestack peek] ;#the level being appended to + #lassign $parent type state + #if {$type eq "space"} { + # + #} elseif {$type eq "buffer"} { + # lappend v([expr {$nest -1}]) {*}[set v($nest)] + #} else { + # error "invalid spacestack item: $parent" + #} + } + + } finally { + set is_parsing 0 + } + return $v(0) + } + + #*** !doctools + #[list_end] [comment {--- end definitions namespace tomlish::decode ---}] +} +#decode toml to tomlish +interp alias {} tomlish::from_toml {} tomlish::decode::toml + +namespace eval tomlish::utils { + #*** !doctools + #[subsection {Namespace tomlish::utils}] + #[para] + #[list_begin definitions] + + + #tablenames (& tablearraynames) may contain irrelevant leading, trailing and interspersed whitespace + # tablenames can be made up of segments delimited by dots. .eg [ a.b . c ] + #trimmed, the tablename becomes {a.b.c} + # A segment may contain whitespace if it is quoted e.g [a . b . "c etc " ] + #ie whitespace is only irrelevant if it's outside a quoted segment + #trimmed, the tablename becomes {a.b."c etc "} + proc tablename_trim {tablename} { + set segments [tablename_split $tablename false] + set trimmed_segments [list] + foreach seg $segments { + lappend trimmed_segments [::string trim $seg " \t"] + } + return [join $trimmed_segments .] + } + + #basic generic quote matching for single and double quotes + #note for example that {[o'malley]} will return sq - as the single quote is not closed or wrapped in double quotes + proc tok_in_quotedpart {tok} { + set sLen [tcl::string::length $tok] + set quote_type "" + set had_slash 0 + for {set i 0} {$i < $sLen} {incr i} { + set c [tcl::string::index $tok $i] + if {$quote_type eq ""} { + if {$had_slash} { + #don't enter quote mode + #leave slash_mode because even if current char is slash - it is escaped + set had_slash 0 + } else { + set ctype [tcl::string::map [list {"} dq {'} sq \\ bsl] $c] + switch -- $ctype { + dq { + set quote_type dq + } + sq { + set quote_type sq + } + bsl { + set had_slash 1 + } + } + } + } else { + if {$had_slash} { + #don't leave quoted mode + #leave slash_mode because even if current char is slash - it is escaped + set had_slash 0 + } else { + set ctype [tcl::string::map [list {"} dq {'} sq \\ bsl] $c] + switch -- $ctype { + dq { + if {$quote_type eq "dq"} { + set quote_type "" + } + } + sq { + if {$quote_type eq "sq"} { + set quote_type "" + } + } + bsl { + set had_slash 1 + } + } + } + } + } + return $quote_type ;#dq | sq + } + + #utils::tablename_split + proc tablename_split {tablename {normalize false}} { + #we can't just split on . because we have to handle quoted segments which may contain a dot. + #eg {dog."tater.man"} + set sLen [tcl::string::length $tablename] + set segments [list] + set mode "unknown" ;#5 modes: unknown, quoted,litquoted, unquoted, syntax + #quoted is for double-quotes, litquoted is for single-quotes (string literal) + set seg "" + for {set i 0} {$i < $sLen} {incr i} { + + if {$i > 0} { + set lastChar [tcl::string::index $tablename [expr {$i - 1}]] + } else { + set lastChar "" + } + + set c [tcl::string::index $tablename $i] + + if {$c eq "."} { + switch -exact -- $mode { + unquoted { + #dot marks end of segment. + lappend segments $seg + set seg "" + set mode "unknown" + } + quoted { + append seg $c + } + unknown { + lappend segments $seg + set seg "" + } + litquoted { + append seg $c + } + default { + #mode: syntax + #we got our dot. - the syntax mode is now satisfied. + set mode "unknown" + } + } + } elseif {($c eq "\"") && ($lastChar ne "\\")} { + if {$mode eq "unknown"} { + if {[tcl::string::trim $seg] ne ""} { + #we don't allow a quote in the middle of a bare key + error "tablename_split. character '\"' invalid at this point in tablename. tablename: '$tablename'" + } + set mode "quoted" + set seg "\"" + } elseif {$mode eq "unquoted"} { + append seg $c + } elseif {$mode eq "quoted"} { + append seg $c + + if {$normalize} { + lappend segments [::tomlish::utils::unescape_string [tcl::string::range $seg 1 end-1]] + } else { + lappend segments $seg + } + + set seg "" + set mode "syntax" ;#make sure we only accept a dot or end-of-data now. + } elseif {$mode eq "litquoted"} { + append seg $c + } elseif {$mode eq "syntax"} { + error "tablename_split. expected whitespace or dot, got double quote. tablename: '$tablename'" + } + } elseif {($c eq "\'")} { + if {$mode eq "unknown"} { + append seg $c + set mode "litquoted" + } elseif {$mode eq "unquoted"} { + #single quote inside e.g o'neill + append seg $c + } elseif {$mode eq "quoted"} { + append seg $c + + } elseif {$mode eq "litquoted"} { + append seg $c + #no normalization to do + lappend segments $seg + set seg "" + set mode "syntax" + } elseif {$mode eq "syntax"} { + error "tablename_split. expected whitespace or dot, got single quote. tablename: '$tablename'" + } + + } elseif {$c in [list " " \t]} { + if {$mode eq "syntax"} { + #ignore + } else { + append seg $c + } + } else { + if {$mode eq "syntax"} { + error "tablename_split. Expected a dot separator. got '$c'. tablename: '$tablename'" + } + if {$mode eq "unknown"} { + set mode "unquoted" + } + append seg $c + } + if {$i == $sLen-1} { + #end of data + ::tomlish::log::debug "End of data: mode='$mode'" + #REVIEW - we can only end up in unquoted or syntax here? are other branches reachable? + switch -exact -- $mode { + quoted { + if {$c ne "\""} { + error "tablename_split. missing closing double-quote in a segment. tablename: '$tablename'" + } + if {$normalize} { + lappend segments [::tomlish::utils::unescape_string [tcl::string::range $seg 1 end-1]] + #lappend segments [subst -nocommands -novariables [::string range $seg 1 end-1]] ;#wrong + } else { + lappend segments $seg + } + } + litquoted { + set trimmed_seg [tcl::string::trim $seg] + if {[tcl::string::index $trimmed_seg end] ne "\'"} { + error "tablename_split. missing closing single-quote in a segment. tablename: '$tablename'" + } + lappend segments $seg + } + unquoted - unknown { + lappend segments $seg + } + syntax { + #ok - segment already lappended + } + default { + lappend segments $seg + } + } + } + } + foreach seg $segments { + set trimmed [tcl::string::trim $seg " \t"] + #note - we explicitly allow 'empty' quoted strings '' & "" + # (these are 'discouraged' but valid toml keys) + #if {$trimmed in [list "''" "\"\""]} { + # puts stderr "tablename_split. warning - Empty quoted string as tablename segment" + #} + if {$trimmed eq "" } { + error "tablename_split. Empty segment found. tablename: '$tablename' segments [llength $segments] ($segments)" + } + } + return $segments + } + + proc unicode_escape_info {slashu} { + #!todo + # validate that slashu is either a \uxxxx or \Uxxxxxxxx value of the correct length and + # is a valid 'unicode scalar value' (any Unicode code point except high-surrogate and low-surrogate code points) + # ie integers in the range 0 to D7FF16 and E00016 to 10FFFF16 inclusive + #expr {(($x >= 0) && ($x <= 0xD7FF16)) || (($x >= 0xE00016) && ($x <= 0x10FFFF16))} + if {[tcl::string::match {\\u*} $slashu]} { + set exp {^\\u([0-9a-fA-F]{4}$)} + if {[regexp $exp $slashu match hex]} { + if {[scan $hex %4x dec] != 1} { + #why would a scan ever fail after matching the regexp? !todo - review. unreachable branch? + return [list err [list reason "Failed to convert '$hex' to decimal"]] + } else { + return [list ok [list char [subst -nocommand -novariable $slashu]]] + } + } else { + return [list err [list reason "Supplied string not of the form \\uHHHH where H in \[0-9a-fA-F\]"]] + } + } elseif {[tcl::string::match {\\U*} $slashu]} { + set exp {^\\U([0-9a-fA-F]{8}$)} + if {[regexp $exp $slashu match hex]} { + if {[scan $hex %8x dec] != 1} { + #why would a scan ever fail after matching the regexp? !todo - review. unreachable branch? + return [list err [list reason "Failed to convert '$hex' to decimal"]] + } else { + if {(($dec >= 0) && ($dec <= 0xD7FF16)) || (($dec >= 0xE00016) && ($dec <= 0x10FFFF16))} { + return [list ok [list char [subst -nocommand -novariable $slashu]]] + } else { + return [list err [list reason "$slashu is not within the 'unicode scalar value' ranges 0 to 0xD7FF16 or 0xE00016 to 0x10FFFF16"]] + } + } + } else { + return [list err [list reason "Supplied string not of the form \\UHHHHHHHH where H in \[0-9a-fA-F\]"]] + } + } else { + return [list err [list reason "Supplied string did not start with \\u or \\U" ]] + } + + } + + #Note that unicode characters don't *have* to be escaped. + #So if we provide a function named 'escape_string', the name implies the inverse of unescape_string which unescapes unicode \u \U values. + #- an inverse of unescape_string would encode all unicode chars unnecessarily. + #- as toml accepts a compact escape sequence for common chars such as tab,backspace,linefeed etc but also allows the full form \u009 etc + #- escape_string and unescape_string would not be reliably roundtrippable inverses anyway. + #REVIEW - provide it anyway? When would it be desirable to use? + + variable Bstring_control_map [list\ + \b {\b}\ + \n {\n}\ + \r {\r}\ + \" {\"}\ + \x1b {\e}\ + \\ "\\\\"\ + ] + #\e for \x1b seems like it might be included - v1.1?? hard to find current state of where toml is going :/ + #for a Bstring (Basic string) tab is explicitly mentioned as not being one that must be escaped. + for {set cdec 0} {$cdec <= 8} {incr cdec} { + set hhhh [format %.4X $cdec] + lappend Bstring_control_map [format %c $cdec] \\u$hhhh + } + for {set cdec [expr {0x0A}]} {$cdec <= 0x1F} {incr cdec} { + set hhhh [format %.4X $cdec] + lappend Bstring_control_map [format %c $cdec] \\u$hhhh + } + # \u007F = 127 + lappend Bstring_control_map [format %c 127] \\u007F + + #Note the inclusion of backslash in the list of controls makes this non idempotent - subsequent runs would keep encoding the backslashes! + #escape only those chars that must be escaped in a Bstring (e.g not tab which can be literal or escaped) + #for example - can be used by from_dict to produce valid Bstring data for a tomlish record + proc rawstring_to_Bstring_with_escaped_controls {str} { + #for the well known chars that have compact escape sequences allowed by toml - we choose that form over the full \u form. + #we'll use a string map with an explicit list rather than algorithmic at runtime + # - the string map is probably more performant than splitting a string, especially if it's large + variable Bstring_control_map + return [string map $Bstring_control_map $str] + } + + #review - unescape what string? Bstring vs MLBstring? + #we should be specific in the function naming here + #used by to_dict - so part of validation? - REVIEW + proc unescape_string {str} { + #note we can't just use Tcl subst because: + # it also transforms \a (audible bell) and \v (vertical tab) which are not in the toml spec. + # it would strip out backslashes inappropriately: e.g "\j" becomes just j + # it recognizes other escapes which aren't approprite e.g \xhh and octal \nnn + # it replaces \ with a single whitespace (trailing backslash) + #This means we shouldn't use 'subst' on the whole string, but instead substitute only the toml-specified escapes (\r \n \b \t \f \\ \" \uhhhh & \Uhhhhhhhh + + set buffer "" + set buffer4 "" ;#buffer for 4 hex characters following a \u + set buffer8 "" ;#buffer for 8 hex characters following a \u + + set sLen [tcl::string::length $str] + + #we need to handle arbitrarily long sequences of backslashes. \\\\\ etc + set slash_active 0 + set unicode4_active 0 + set unicode8_active 0 + + ::tomlish::log::debug "unescape_string. got len [string length str] str $str" + + #!todo - check for invalid data in the form of a raw carriage return (decimal 13) without following linefeed? + set i 0 + for {} {$i < $sLen} {} { + if {$i > 0} { + set lastChar [tcl::string::index $str [expr {$i - 1}]] + } else { + set lastChar "" + } + + set c [tcl::string::index $str $i] + #::tomlish::log::debug "unescape_string. got char $c" ;#too much? + + #---------------------- + #as we are 'unescaping' - should we really be testing for existing values that should have been escaped? + #this test looks incomplete anyway REVIEW + scan $c %c n + if {($n <= 31) && ($n != 9) && ($n != 10) && ($n != 13)} { + #we don't expect unescaped unicode characters from 0000 to 001F - + #*except* for raw tab (which is whitespace) and newlines + error "unescape_string. Invalid data for a toml string. Unescaped control character (decimal $n) [::tomlish::utils::string_to_slashu $c]" + } + #---------------------- + + incr i ;#must incr here because we do'returns'inside the loop + if {$c eq "\\"} { + if {$slash_active} { + append buffer "\\" + set slash_active 0 + } elseif {$unicode4_active} { + error "unescape_string. unexpected case slash during unicode4 not yet handled" + } elseif {$unicode8_active} { + error "unescape_string. unexpected case slash during unicode8 not yet handled" + } else { + # don't output anything (yet) + set slash_active 1 + } + } else { + if {$unicode4_active} { + if {[tcl::string::length $buffer4] < 4} { + append buffer4 $c + } + if {[tcl::string::length $buffer4] == 4} { + #we have a \uHHHH to test + set unicode4_active 0 + set result [tomlish::utils::unicode_escape_info "\\u$buffer4"] + if {[lindex $result 0] eq "ok"} { + append buffer [dict get $result ok char] + } else { + error "unescape_string error: [lindex $result 1]" + } + } + } elseif {$unicode8_active} { + if {[tcl::string::length $buffer8] < 8} { + append buffer8 $c + } + if {[tcl::string::length $buffer8] == 8} { + #we have a \UHHHHHHHH to test + set unicode8_active 0 + set result [tomlish::utils::unicode_escape_info "\\U$buffer8"] + if {[lindex $result 0] eq "ok"} { + append buffer [dict get $result ok char] + } else { + error "unescape_string error: [lindex $result 1]" + } + } + } elseif {$slash_active} { + set slash_active 0 + set ctest [tcl::string::map {{"} dq} $c] + switch -exact -- $ctest { + dq { + set e "\\\"" + append buffer [subst -nocommand -novariable $e] + } + b - t - n - f - r { + set e "\\$c" + append buffer [subst -nocommand -novariable $e] + } + u { + set unicode4_active 1 + set buffer4 "" + } + U { + set unicode8_active 1 + set buffer8 "" + } + default { + set slash_active 0 + #review - toml spec says all other escapes are reserved + #and if they are used TOML should produce an error. + #we leave detecting this for caller for now - REVIEW + append buffer "\\" + append buffer $c + } + } + } else { + append buffer $c + } + } + } + #puts stdout "EOF 4:$unicode4_active 8:$unicode8_active slash:$slash_active" + if {$unicode4_active} { + error "End of string reached before complete unicode escape sequence \uHHHH" + } + if {$unicode8_active} { + error "End of string reached before complete unicode escape sequence \UHHHHHHHH" + } + if {$slash_active} { + append buffer "\\" + } + return $buffer + } + + #This does not have to do with unicode normal forms - which it seems toml has decided against regarding use in keys (review/references?) + #This is meant for internal use regarding ensuring we match equivalent keys which may have just been specified with different string mechanisms, + #e.g squoted vs dquoted vs barekey. + proc normalize_key {rawkey} { + set c1 [tcl::string::index $rawkey 0] + set c2 [tcl::string::index $rawkey end] + if {($c1 eq "'") && ($c2 eq "'")} { + #single quoted segment. No escapes allowed within it. + set key [tcl::string::range $rawkey 1 end-1] + } elseif {($c1 eq "\"") && ($c2 eq "\"")} { + #double quoted segment. Apply escapes. + # + set keydata [tcl::string::range $rawkey 1 end-1] ;#strip outer quotes only + #e.g key could have mix of \UXXXXXXXX escapes and unicode chars + #or mix of \t and literal tabs. + #unescape to convert all to literal versions for comparison + set key [::tomlish::utils::unescape_string $keydata] + #set key [subst -nocommands -novariables $keydata] ;#wrong. Todo - create a string escape substitution function. + } else { + set key $rawkey + } + return $key + } + + proc string_to_slashu {string} { + set rv {} + foreach c [split $string {}] { + scan $c %c cdec + if {$cdec > 65535} { + append rv {\U} [format %.8X $cdec] + } else { + append rv {\u} [format %.4X $cdec] + } + } + return $rv + } + + #'nonprintable' is conservative here because some systems (e.g windows console) are very limited in what they can display. + #This is used for display purposes only (error msgs) + proc nonprintable_to_slashu {s} { + set res "" + foreach i [split $s ""] { + scan $i %c cdec + + set printable 0 + if {($cdec>31) && ($cdec<127)} { + set printable 1 + } + if {$printable} { + append res $i + } else { + if {$cdec > 65535} { + append res \\U[format %.8X $cdec] + } else { + append res \\u[format %.4X $cdec] + } + } + } + set res + } ;# initial version from tcl wiki RS + + #check if str is valid for use as a toml bare key + #Early toml versions? only allowed letters + underscore + dash + proc is_barekey1 {str} { + if {[tcl::string::length $str] == 0} { + return 0 + } else { + set matches [regexp -all {[a-zA-Z0-9\_\-]} $str] + if {[tcl::string::length $str] == $matches} { + #all characters match the regexp + return 1 + } else { + return 0 + } + } + } + + #from toml.abnf in github.com/toml-lang/toml + #unquoted-key = 1*unquoted-key-char + #unquoted-key-char = ALPHA / DIGIT / %x2D / %x5F ; a-z A-Z 0-9 - _ + #unquoted-key-char =/ %xB2 / %xB3 / %xB9 / %xBC-BE ; superscript digits, fractions + #unquoted-key-char =/ %xC0-D6 / %xD8-F6 / %xF8-37D ; non-symbol chars in Latin block + #unquoted-key-char =/ %x37F-1FFF ; exclude GREEK QUESTION MARK, which is basically a semi-colon + #unquoted-key-char =/ %x200C-200D / %x203F-2040 ; from General Punctuation Block, include the two tie symbols and ZWNJ, ZWJ + #unquoted-key-char =/ %x2070-218F / %x2460-24FF ; include super-/subscripts, letterlike/numberlike forms, enclosed alphanumerics + #unquoted-key-char =/ %x2C00-2FEF / %x3001-D7FF ; skip arrows, math, box drawing etc, skip 2FF0-3000 ideographic up/down markers and spaces + #unquoted-key-char =/ %x2070-21FF / %x2300-24FF ; skip math operators + #unquoted-key-char =/ %x25A0-268B / %x2690-2757 ; skip box drawing, block elements, and some yin-yang symbols + #unquoted-key-char =/ %x2762-2767 / %x2776-27E5 ; skip some Dingbat punctuation + #unquoted-key-char =/ %x2801-297F ; skip some math brackets and arrows, and braille blank + #unquoted-key-char =/ %x2B00-2FFF / %x3001-D7FF ; skip various math operators and symbols, and ideographic space + #unquoted-key-char =/ %xF900-FDCF / %xFDF0-FFFD ; skip D800-DFFF surrogate block, E000-F8FF Private Use area, FDD0-FDEF intended for process-internal use (unicode) + #unquoted-key-char =/ %x10000-EFFFF ; all chars outside BMP range, excluding Private Use planes (F0000-10FFFF) + variable re_barekey + set ranges [list] + lappend ranges {a-zA-Z0-9\_\-} + lappend ranges {\u00B2} {\u00B3} {\u00B9} {\u00BC-\u00BE} ;# superscript digits, fractions + lappend ranges {\u00C0-\u00D6} {\u00D8-\u00F6} {\u00F8-\u037D} ;# non-symbol chars in Latin block + lappend ranges {\u037f-\u1FFF} ;# exclude GREEK QUESTION MARK, which is basically a semi-colon + lappend ranges {\u200C-\u200D} {\u203F-\u2040} ;# from General Punctuation Block, include the two tie symbols and ZWNJ, ZWJ + lappend ranges {\u2070-\u218f} {\u2460-\u24FF} ;# include super-subscripts, letterlike/numberlike forms, enclosed alphanumerics + lappend ranges {\u2C00-\u2FEF} {\u3001-\uD7FF} ;# skip arrows, math, box drawing etc, skip 2FF0-3000 ideographic up/down markers and spaces + lappend ranges {\u2070-\u21FF} {\u2300-\u24FF} ;# skip math operators + lappend ranges {\u25A0-\u268B} {\u2690-\u2757} ;# skip box drawing, block elements, and some yin-yang symbols + lappend ranges {\u2762-\u2767} {\u2776-\u27E5} ;# skip some Dingbat punctuation + lappend ranges {\u2801-\u297F} ;# skip some math brackets and arrows, and braille blank + lappend ranges {\u2B00-\u2FFF} {\u3001-\uD7FF} ;# skip various math operators and symbols, and ideographic space + lappend ranges {\uF900-\uFDCF} {\uFDF0-\uFFFD} ;# skip D800-DFFF surrogate block, E000-F8FF Private Use area, FDD0-FDEF intended for process-internal use (unicode) + lappend ranges {\U10000-\UEFFFF} ;# all chars outside BMP range, excluding Private Use planes (F0000-10FFFF) + set re_barekey {^[} + foreach r $ranges { + append re_barekey $r + } + append re_barekey {]+$} + + proc is_barekey {str} { + if {[tcl::string::length $str] == 0} { + return 0 + } + variable re_barekey + return [regexp $re_barekey $str] + } + + #test only that the characters in str are valid for the toml specified type 'integer'. + proc int_validchars1 {str} { + set numchars [tcl::string::length $str] + if {[regexp -all {[0-9\_\-\+]} $str] == $numchars} { + return 1 + } else { + return 0 + } + } + #add support for hex,octal,binary 0x.. 0o.. 0b... + proc int_validchars {str} { + set numchars [tcl::string::length $str] + if {[regexp -all {[0-9\_xo\-\+A-Fa-f]} $str] == $numchars} { + return 1 + } else { + return 0 + } + } + + proc is_int {str} { + set matches [regexp -all {[0-9\_xo\-\+A-Fa-f]} $str] ;#0b101 etc covered by a-f + + if {[tcl::string::length $str] == $matches} { + #all characters in legal range + + # --------------------------------------- + #check for leading zeroes in non 0x 0b 0o + #first strip any +, - or _ (just for this test) + #(but still allowing 0 -0 +0) + set check [tcl::string::map {+ "" - "" _ ""} $str] + if {([tcl::string::length $check] > 1) && ([tcl::string::index $check 0] eq "0") && ([tcl::string::index $check 1] ni {o x b})} { + return 0 + } + # --------------------------------------- + + #check +,- only occur in the first position. (excludes also +++1 etc) + if {[tcl::string::last - $str] > 0} { + return 0 + } + if {[tcl::string::last + $str] > 0} { + return 0 + } + + #------------------------------------------- + #unclear if a 'digit' includes the type specifiers x b o + #we assume the 0x 0b 0o are NOT counted as digits - as underscores here would seem + #to be likely to cause interop issues with other systems + #(e.g tcl allows 0b1_1 but not 0b_11) + #Most of this structure would be unnecessary if we could rely on string::is::integer understanding underscores (9+?) + #we still need to support earlier Tcl for now though. + + #first rule out any case with more than one underscore in a row + if {[regexp {__} $str]} { + return 0 + } + if {[string index $str 0] eq "_"} { + return 0 + } + set utest [string trimleft $str +-] + #test again for further trick like _+_0xFF + if {[string index $utest 0] eq "_"} { + return 0 + } + if {[string range $utest 0 1] in {0x 0b 0o}} { + set testnum [string range $utest 2 end] + } else { + set testnum $utest + #exclude also things like 0_x 0___b that snuck past our prefix test + if {![string is digit -strict [string map {_ ""} $testnum]]} { + return 0 + } + #assert - only digits and underscores in testnum + #still may have underscores at each end + } + #assert testnum is now the 'digits' portion of a , 0x 0b 0o number + #(+ and - already stripped) + #It may still have chars unsuitable for its type - which will be caught by the string::is::integer test below + if {[string length $testnum] != [string length [string trim $testnum _]]} { + #had non-inner underscores in 'digit' part + return 0 + } + #assert str only has solo inner underscores (if any) between 'digits' + #------------------------------------------- + + set numeric_value [tcl::string::map {_ ""} $str] ;#allow some earlier tcl versions which don't support underscores + #use Tcl's integer check to ensure we don't let things like 3e4 through - which is a float (would need to be 0x3e4 for hex) + if {![tcl::string::is integer -strict $numeric_value]} { + return 0 + } + #!todo - check bounds only based on some config value + #even though Tcl can handle bignums, we won't accept anything outside of toml 1.0 minimum requirements. + #presumably very large numbers would have to be supplied in a toml file as strings. + #Review - toml 1.0 only says that it must handle up to 2^63 - not that this is a max + if {$numeric_value > $::tomlish::max_int} { + return 0 + } + if {$numeric_value < $::tomlish::min_int} { + return 0 + } + } else { + return 0 + } + #Got this far - didn't find anything wrong with it. + return 1 + } + + #test only that the characters in str are valid for the toml specified type 'float'. + proc float_validchars {str} { + set numchars [tcl::string::length $str] + if {[regexp -all {[eE0-9\_\-\+\.]} $str] == $numchars} { + return 1 + } else { + #only allow lower case for these special values - as per Toml 1.0 spec + if {$str ni {inf +inf -inf nan +nan -nan}} { + return 0 + } else { + return 1 + } + } + } + + #note - Tcl's string is double will return true also for the subset of float values which are integers + #This function is to determine whether it matches the Toml float concept - so requires a . or e or E + proc is_float {str} { + #vip greenlight known literals, don't test for case variations - as Toml doesn't allow (whereas Tcl allows Inf NaN etc) + if {$str in {inf +inf -inf nan +nan -nan}} { + return 1 + } + #doorcheck the basics for floatiness vs members of that rival gang - ints + if {![regexp {[.eE]} $str]} { + #could be an integer - which isn't specifically a float for Toml purposes. + return 0 + } + + + #patdown for any contraband chars + set matches [regexp -all {[eE0-9\_\-\+\.]} $str] + if {[tcl::string::length $str] != $matches} { + return 0 + } + + #all characters in legal range + + #A leading zero is ok, but we should disallow multiple leading zeroes (same rules as toml ints) + + #Early Toml spec also disallowed leading zeros in the exponent part(?) + #... this seems less interoperable anyway (some libraries generate leading zeroes in exponents) + #we allow leading zeros in exponents here. + + #Check for leading zeros in main part + #first strip any +, - or _ (just for this test) + set check [tcl::string::map {+ "" - "" _ ""} $str] + set r {([0-9])*} + regexp $r $check intpart ;#intpart holds all numerals before the first .,e or E + set z {([0])*} + regexp $z $intpart leadingzeros + if {[tcl::string::length $leadingzeros] > 1} { + return 0 + } + + #for floats, +,- may occur in multiple places + #e.g -2E-22 +3e34 + #!todo - check bounds ? + + #----------------------------------------- + if {[regexp {__} $str]} { + return 0 + } + if {[string index $str 0] eq "_" || [string index $str end] eq "_"} { + return 0 + } + set utest [string trimleft $str +-] + #test again for further trick like _+_ + if {[string index $utest 0] eq "_"} { + return 0 + } + #----------------------------------------- + + #decimal point, if used must be surrounded by at least one digit on each side + #e.g 3.e+20 also illegal + set dposn [string first . $str] + if {$dposn > -1 } { + set d3 [string range $str $dposn-1 $dposn+1] + if {![string is integer -strict [string index $d3 0]] || ![string is integer -strict [string index $d3 2]]} { + return 0 + } + } + #we've already eliminated leading/trailing underscores + #now ensure each inner underscore is surrounded by digits + if {[regexp {_[^0-9]|[^0-9]_} $str]} { + return 0 + } + + #strip underscores for tcl double check so we can support < tcl 9 versions which didn't allow underscores + set check [tcl::string::map {_ ""} $str] + #string is double accepts inf nan +NaN etc. + if {![tcl::string::is double $check]} { + return 0 + } + + #All good - seems to be a toml-approved float and not an int. + return 1 + } + + #test only that the characters in str are valid for the toml specified type 'datetime'. + proc datetime_validchars {str} { + set numchars [tcl::string::length $str] + if {[regexp -all {[zZtT0-9\-\+\.:]} $str] == $numchars} { + return 1 + } else { + return 0 + } + } + + #review - we + proc is_datetime {str} { + #e.g 1979-05-27 + #e.g 1979-05-27T00:32:00Z + #e.g 1979-05-27 00:32:00-07:00 + #e.g 1979-05-27 00:32:00+10:00 + #e.g 1979-05-27 00:32:00.999999-07:00 + + #review + #minimal datetimes? + # 2024 ok - shortest valid 4 digit year? + # 02:00 ok + # 05-17 ok + if {[string length $str] < 4} { + return 0 + } + + set matches [regexp -all {[zZtT0-9\-\+\.:]} $str] + if {[tcl::string::length $str] == $matches} { + #all characters in legal range + #!todo - use full RFC 3339 parser? + lassign [split $str T] datepart timepart + #!todo - what if the value is 'time only'? + + #Tcl's free-form clock scan (no -format option) is deprecated + # + #if {[catch {clock scan $datepart} err]} { + # puts stderr "tcl clock scan failed err:'$err'" + # return 0 + #} + + #!todo - verify time part is reasonable + } else { + return 0 + } + return 1 + } + + + #*** !doctools + #[list_end] [comment {--- end definitions namespace tomlish::utils ---}] +} + +namespace eval tomlish::parse { + #*** !doctools + #[subsection {Namespace tomlish::parse}] + #[para] + #[list_begin definitions] + + #This is a somewhat curly mix of a statemachine and toml-nesting-stack littered with special cases. + #The code is a pig's-nest - but it should be noted that for example trailing single double quotes in multiline strings are perhaps not so trivial to parse using more standard methods either: + # - e.g some kind of backtracking required if using an ABNF parser? + #I don't know the precise technical name for this sort of parser; probably something like "Dog's Breakfast" + #More seriously, we don't have distinct lex/parse steps - so it is basically a 'fused lexer' or 'scannerless parser' + + #It is also desirable for this system to be useful in 'interactive' use. review - would a separate lexer make this easier or harder? + + #A possible alternative more structured approach might be to use a PEG (Parsing Expression Grammar) + + + variable is_parsing 0 ;#whether we are in the middle of parsing tomlish text + + variable state + # states: + # table-space, itable-space, array-space + # array-value-expected,keyval-value-expected,itable-keyval-value-expected, keyval-syntax, + # quoted-key, squoted-key + # string-state, literal-state, multistring... + # + # notes: + # only the -space states are also 'spaces' ie a container which is pushed/popped on the spacestack + + # + # xxx_value-expected - we also allow for leading whitespace in this state, but once a value is returned we jump to a state based on the containing space. e.g keyval-tail or array-syntax + # + #stateMatrix defines for each state, actions to take for each possible token. + #single-element actions are the name of the next state into which to transition, or a 'POPSPACE' instruction to pop a level off the spacestack and add the data to the parent container. + #dual-element actions are a push instruction and the name of the space to push on the stack. + # - PUSHSPACE is a simple push onto the spacestack, zeropoppushspace also pushes, but will first do a pop *if* the current space level is greater than zero (ie if only if not already in root table-space) + + # -- --- --- --- --- --- + #token/state naming guide + # -- --- --- --- --- --- + #tokens : underscore separated or bare name e.g newline, start_quote, start_squote + #private tokens: always have a leading underscore (These are private 'temporary state' tokens that are never returned as actual tokens e.g _start_squote_sequence + #states : always contain at least one dash e.g err-state, table-space + #instructions + # -- --- --- --- --- --- + + + #stateMatrix dict of elements mapping current state to next state based on returned tokens + # current-state {token-encountered next-state ... } + # where next-state can be a 1 or 2 element list. + #If 2 element - the first item is an instruction (ucase) + #If 1 element - it is either a lowercase dashed state name or an ucase instruction + #e.g {PUSHSPACE } or POPSPACE or SAMESPACE + + + #SAMESPACE - got to same space as parent without popping a level, but has it's own autotransition lookup - strange concept - review usecases + + variable stateMatrix + set stateMatrix [dict create] + + #xxx-space vs xxx-syntax inadequately documented - TODO + + #review - out of date? + # --------------------------------------------------------------------------------------------------------------# + # incomplete example of some state starting at table-space + # --------------------------------------------------------------------------------------------------------------# + # ( = -> keyval-value-expected) + # keyval-syntax (popped -> keyval-space -> keyval-tail) (autotransition on pop) + # keyval-space (autotransition on push ^) + # table-space (barekey^) (startdquote -> dquoted-key ^) + # --------------------------------------------------------------------------------------------------------------# + + dict set stateMatrix\ + table-space { + bom "table-space"\ + whitespace "table-space"\ + newline "table-space"\ + barekey {PUSHSPACE "keyval-space" state "keyval-syntax"}\ + squotedkey {PUSHSPACE "keyval-space" state "keyval-syntax" note ""}\ + dquotedkey {PUSHSPACE "keyval-space" state "keyval-syntax"}\ + XXXstartquote "quoted-key"\ + XXXstartsquote "squoted-key"\ + comment "table-space"\ + starttablename "tablename-state"\ + starttablearrayname "tablearrayname-state"\ + startmultiquote "err-state"\ + endquote "err-state"\ + comma "err-state"\ + eof "end-state"\ + equal "err-state"\ + cr "err-lonecr"\ + } + + #itable-space/ curly-syntax : itables + dict set stateMatrix\ + itable-space {\ + whitespace "itable-space"\ + newline "itable-space"\ + barekey {PUSHSPACE "itable-keyval-space" state "itable-keyval-syntax"}\ + squotedkey {PUSHSPACE "itable-keyval-space" state "itable-keyval-syntax"}\ + dquotedkey {PUSHSPACE "itable-keyval-space" state "itable-keyval-syntax"}\ + endinlinetable "POPSPACE"\ + XXXstartquote "quoted-key"\ + XXXstartsquote {TOSTATE "squoted-key" comment "jn-testing"}\ + comma "err-state"\ + comment "itable-space"\ + eof "err-state"\ + } + #squote_seq_begin {PUSHSPACE "leading-squote-space" returnstate itable-space starttok {squote_seq "'"}} + + + dict set stateMatrix\ + keyval-space {\ + whitespace "keyval-syntax"\ + equal "keyval-value-expected"\ + } + + # ' = ' portion of keyval + dict set stateMatrix\ + keyval-syntax {\ + whitespace "keyval-syntax"\ + barekey {PUSHSPACE "dottedkey-space"}\ + squotedkey {PUSHSPACE "dottedkey-space"}\ + dquotedkey {PUSHSPACE "dottedkey-space"}\ + equal "keyval-value-expected"\ + comma "err-state"\ + newline "err-state"\ + eof "err-state"\ + } + #### + dict set stateMatrix\ + keyval-value-expected {\ + whitespace "keyval-value-expected"\ + untyped_value {TOSTATE "keyval-tail" note ""}\ + startquote {TOSTATE "string-state" returnstate keyval-tail}\ + startmultiquote {PUSHSPACE "multistring-space" returnstate keyval-tail}\ + squote_seq_begin {PUSHSPACE "leading-squote-space" returnstate keyval-value-expected starttok {squote_seq "'"}}\ + startsquote {TOSTATE "literal-state" returnstate keyval-tail note "usual way a literal is triggered"}\ + double_squote {TOSTATE "keyval-tail" note "empty literal received when double squote occurs"}\ + triple_squote {PUSHSPACE "multiliteral-space" returnstate keyval-tail}\ + startinlinetable {PUSHSPACE itable-space returnstate keyval-tail}\ + startarray {PUSHSPACE array-space returnstate keyval-tail}\ + } + #squote_seq_begin {PUSHSPACE "leading-squote-space" returnstate keyval-process-leading-squotes starttok {squote_seq "'"}} + dict set stateMatrix\ + leading-squote-space {\ + squote_seq "POPSPACE"\ + } + #dict set stateMatrix\ + # keyval-process-leading-squotes {\ + # startsquote "literal-state"\ + # triple_squote {PUSHSPACE "multiliteral-space" returnstate keyval-tail}\ + # } + + dict set stateMatrix\ + keyval-tail {\ + whitespace "keyval-tail"\ + newline "POPSPACE"\ + comment "keyval-tail"\ + eof "end-state"\ + } + + dict set stateMatrix\ + itable-keyval-syntax {\ + whitespace "itable-keyval-syntax"\ + barekey {PUSHSPACE "dottedkey-space"}\ + squotedkey {PUSHSPACE "dottedkey-space"}\ + dquotedkey {PUSHSPACE "dottedkey-space"}\ + equal "itable-keyval-value-expected"\ + newline "err-state"\ + eof "err-state"\ + } + dict set stateMatrix\ + itable-keyval-value-expected {\ + whitespace "itable-keyval-value-expected"\ + untyped_value {TOSTATE "itable-val-tail" note ""}\ + startquote {TOSTATE "string-state" returnstate itable-val-tail}\ + startmultiquote {PUSHSPACE "multistring-space" returnstate itable-val-tail}\ + squote_seq_begin {PUSHSPACE "leading-squote-space" returnstate itable-keyval-value-expected starttok {squote_seq "'"}}\ + startsquote {TOSTATE "literal-state" returnstate itable-val-tail note "usual way a literal is triggered"}\ + double_squote {TOSTATE "itable-val-tail" note "empty literal received when double squote occurs"}\ + triple_squote {PUSHSPACE "multiliteral-space" returnstate itable-val-tail}\ + startinlinetable {PUSHSPACE "itable-space" returnstate itable-val-tail}\ + startarray {PUSHSPACE "array-space" returnstate itable-val-tail}\ + } + dict set stateMatrix\ + itable-keyval-space {\ + whitespace "itable-keyval-syntax"\ + equal {TOSTATE "itable-keyval-value-expected" note "required"}\ + } + + dict set stateMatrix\ + itable-val-tail {\ + whitespace "itable-val-tail"\ + endinlinetable "POPSPACE"\ + comma "POPSPACE"\ + XXXnewline {TOSTATE "itable-val-tail" note "itable-space ??"}\ + newline "POPSPACE"\ + comment "itable-val-tail"\ + eof "err-state"\ + } + #dict set stateMatrix\ + # itable-quoted-key {\ + # whitespace "NA"\ + # itablequotedkey {PUSHSPACE "itable-keyval-space"}\ + # newline "err-state"\ + # endquote "itable-keyval-syntax"\ + # } + #dict set stateMatrix\ + # itable-squoted-key {\ + # whitespace "NA"\ + # itablesquotedkey {PUSHSPACE "itable-keyval-space"}\ + # newline "err-state"\ + # endsquote "itable-keyval-syntax"\ + # } + + + + + #array-value-expected ? + dict set stateMatrix\ + XXXvalue-expected {\ + whitespace "value-expected"\ + untyped_value {"SAMESPACE" "" replay untyped_value}\ + startquote "string-state"\ + startsquote "literal-state"\ + triple_squote {PUSHSPACE "multiliteral-space"}\ + startmultiquote {PUSHSPACE "multistring-space"}\ + startinlinetable {PUSHSPACE itable-space}\ + startarray {PUSHSPACE array-space}\ + comment "err-state-value-expected-got-comment"\ + comma "err-state"\ + newline "err-state"\ + eof "err-state"\ + } + #note comment token should never be delivered to array-value-expected state? + + #dottedkey-space is not (currently) used within [tablename] or [[tablearrayname]] + #it is for keyval ie x.y.z = value + + #this is the state after dot + #we are expecting a complete key token or whitespace + #(initial entry to the space is by one of the keys - which will immediately go to dottedkey-space-tail) + dict set stateMatrix\ + dottedkey-space {\ + whitespace "dottedkey-space"\ + dotsep "err-state"\ + barekey "dottedkey-space-tail"\ + squotedkey "dottedkey-space-tail"\ + dquotedkey "dottedkey-space-tail"\ + newline "err-state"\ + comma "err-state"\ + comment "err-state"\ + equal "err-state"\ + } + #dottedkeyend "POPSPACE" + #equal "POPSPACE"\ + + #jmn 2025 + #we have 1 or more dottedkeys so far - need dotsep to add more, whitespace to maintain, equal to pop + dict set stateMatrix\ + dottedkey-space-tail {\ + whitespace "dottedkey-space-tail" + dotsep "dottedkey-space" + equal "POPSPACE"\ + } + + #-------------------------------------------------------------------------- + #scratch area + #from_toml {x=1} + # barekey tok + # table-space PUSHSPACE keyval-space state keyval-syntax + # + + + #-------------------------------------------------------------------------- + + + #REVIEW + #toml spec looks like heading towards allowing newlines within inline tables + #https://github.com/toml-lang/toml/issues/781 + + #2025 - appears to be valid for 1.1 - which we are targeting. + #https://github.com/toml-lang/toml/blob/main/toml.md#inline-table + + #JMN2025 + #dict set stateMatrix\ + # curly-syntax {\ + # whitespace "curly-syntax"\ + # newline "curly-syntax"\ + # barekey {PUSHSPACE "itable-keyval-space"}\ + # itablequotedkey "itable-keyval-space"\ + # endinlinetable "POPSPACE"\ + # startquote "itable-quoted-key"\ + # comma "itable-space"\ + # comment "itable-space"\ + # eof "err-state"\ + # } + #review comment "err-state" vs comment "itable-space" - see if TOML 1.1 comes out and allows comments in multiline ITABLES + #We currently allow multiline ITABLES (also with comments) in the tokenizer. + #if we want to disallow as per TOML 1.0 - we should do so when attempting to get structure? + + + #JMN REVIEW + #dict set stateMatrix\ + # array-space {\ + # whitespace "array-space"\ + # newline "array-space"\ + # untyped_value "SAMESPACE"\ + # startarray {PUSHSPACE "array-space"}\ + # endarray "POPSPACE"\ + # startmultiquote {PUSHSPACE multistring-space}\ + # startinlinetable {PUSHSPACE itable-space}\ + # startquote "string-state"\ + # startsquote "literal-state"\ + # triple_squote {PUSHSPACE "multiliteral-space" returnstate array-syntax note "seems ok 2024"}\ + # comma "array-space"\ + # comment "array-space"\ + # eof "err-state-array-space-got-eof"\ + # } + + ## array-space ## + set aspace [dict create] + dict set aspace whitespace "array-space" + dict set aspace newline "array-space" + dict set aspace untyped_value "SAMESPACE" + dict set aspace startarray {PUSHSPACE "array-space"} + dict set aspace endarray "POPSPACE" + dict set aspace startmultiquote {PUSHSPACE multistring-space} + dict set aspace startinlinetable {PUSHSPACE itable-space} + dict set aspace startquote "string-state" + dict set aspace startsquote "literal-state" + dict set aspace triple_squote {PUSHSPACE "multiliteral-space" returnstate array-syntax note "seems ok 2024"} + dict set aspace comma "array-space" + dict set aspace comment "array-space" + dict set aspace eof "err-state-array-space-got-eof" + dict set stateMatrix array-space $aspace + + #when we pop from an inner array we get to array-syntax + #e.g {x=[[]] ??? + set tarntail [dict create] + dict set tarntail whitespace "tablearrayname-tail" + dict set tarntail newline "err-state" + dict set tarntail comment "err-state" + dict set tarntail eof "err-state" + dict set tarntail endtablename "tablearray-tail" + dict set stateMatrix tablearrayname-tail $tarntail + + #review - somewhat counterintuitive...? + # [(starttablearrayname) (endtablearrayname] + # [(starttablename) (endtablename)] + + # [[xxx]] ??? + set tartail [dict create] + dict set tartail whitespace "tablearray-tail" + dict set tartail newline "table-space" + dict set tartail comment "tablearray-tail" + dict set tartail eof "end-state" + dict set stateMatrix tablearray-tail $tartail + + + + + + + dict set stateMatrix\ + end-state {} + + set knowntokens [list] + set knownstates [list] + dict for {state transitions} $stateMatrix { + if {$state ni $knownstates} {lappend knownstates $state} + dict for {tok instructions} $transitions { + if {$tok ni $knowntokens} {lappend knowntokens $tok} + } + } + dict set stateMatrix nostate {} + foreach tok $knowntokens { + dict set stateMatrix nostate $tok "err-nostate-received-token-$tok" + } + + + # -- --- --- --- --- --- --- --- --- --- --- --- --- --- --- + #purpose - debugging? remove? + # -- --- --- --- --- --- --- --- --- --- --- --- --- --- --- + #build a list of 'push triggers' from the stateMatrix + # ie tokens which can push a new space onto spacestack + set push_trigger_tokens [list] + tcl::dict::for {s transitions} $stateMatrix { + tcl::dict::for {token transition_to} $transitions { + set instruction [lindex $transition_to 0] + switch -exact -- $instruction { + PUSHSPACE - zeropoppushspace { + if {$token ni $push_trigger_tokens} { + lappend push_trigger_tokens $token + } + } + } + } + } + ::tomlish::log::debug "push_trigger_tokens: $push_trigger_tokens" + # -- --- --- --- --- --- --- --- --- --- --- --- --- --- --- + + + + #This seems hacky... (deprecate in favour of explicit arguments to the instructions in stateMatrix?) + #spacePopTransitions, spacePushTransitions, spaceSameTransitions below for auto state redirections on POPSPACE,PUSHSPACE,SAMESPACE + + #mainly for the -space states: + #redirect to another state $c based on a state transition from $whatever to $b + # e.g "string {array-space array-syntax}" means when transitioning from string to array-space, jump to array-syntax instead. + #this is useful as we often don't know state $b. e.g when it is decided by 'POPSPACE' + + #use dict set to add values so we can easily add/remove/comment lines + + #Push to, next + #default first states when we push to these spaces + variable spacePushTransitions [dict create] + dict set spacePushTransitions keyval-space keyval-syntax + dict set spacePushTransitions itable-keyval-space itable-keyval-syntax + dict set spacePushTransitions array-space array-space + dict set spacePushTransitions table-space tablename-state + dict set spacePushTransitions #itable-space itable-space + + #Pop to, next + variable spacePopTransitions [dict create] + dict set spacePopTransitions array-space array-syntax + + + #itable-space curly-syntax + #itable-keyval-space itable-val-tail + #review + #we pop to keyval-space from dottedkey-space or from keyval-value-expected? we don't always want to go to keyval-tail + #leave it out and make the POPSPACE caller explicitly specify it + #keyval-space keyval-tail + + variable spaceSameTransitions [dict create] + #JMN test + #dict set spaceSameTransitions array-space array-syntax + + #itable-space curly-syntax + #itable-keyval-space itable-val-tail + + + variable state_list ;#reset every tomlish::decode::toml + + namespace export tomlish toml + namespace ensemble create + + #goNextState has various side-effects e.g pushes and pops spacestack + #REVIEW - setting nest and v elements here is ugly + #todo - make neater, more single-purpose? + proc goNextState {tokentype tok currentstate} { + variable state + variable nest + variable v + + set prevstate $currentstate + + + variable spacePopTransitions + variable spacePushTransitions + variable spaceSameTransitions + + variable last_space_action "none" + variable last_space_type "none" + variable state_list + + set result "" + set starttok "" + + if {[dict exists $::tomlish::parse::stateMatrix $currentstate $tokentype]} { + set transition_to [dict get $::tomlish::parse::stateMatrix $currentstate $tokentype] + ::tomlish::log::debug "--->> goNextState tokentype:$tokentype tok:$tok currentstate:$currentstate : transition_to = $transition_to" + switch -exact -- [lindex $transition_to 0] { + POPSPACE { + spacestack pop + set parent_info [spacestack peek] + set type [dict get $parent_info type] + set parentspace [dict get $parent_info state] + + set last_space_action "pop" + set last_space_type $type + + if {[dict exists $parent_info returnstate]} { + set next [dict get $parent_info returnstate] + #clear the returnstate on current level + set existing [spacestack pop] + dict unset existing returnstate + spacestack push $existing ;#re-push modification + ::tomlish::log::info "--->> POPSPACE transition to parent space $parentspace redirected to stored returnstate $next <<---" + } else { + ### + #review - do away with spacePopTransitions - which although useful to provide a default.. + # - involve error-prone configurations distant to the main state transition configuration in stateMatrix + if {[dict exists $::tomlish::parse::spacePopTransitions $parentspace]} { + set next [dict get $::tomlish::parse::spacePopTransitions $parentspace] + ::tomlish::log::info "--->> POPSPACE transition to parent space $parentspace redirected state to $next (spacePopTransitions)<<---" + } else { + set next $parentspace + ::tomlish::log::info "--->> POPSPACE transition to parent space $parentspace<<---" + } + } + set result $next + } + SAMESPACE { + set currentspace_info [spacestack peek] + ::tomlish::log::debug "--->> SAMESPACE got current space entry: $currentspace_info <<<<<" + set type [dict get $currentspace_info type] + set currentspace [dict get $currentspace_info state] + + if {[dict exists $currentspace_info returnstate]} { + set next [dict get $currentspace_info returnstate] + #clear the returnstate on current level + set existing [spacestack pop] + dict unset existing returnstate + spacestack push $existing ;#re-push modification + ::tomlish::log::info "--->> SAMESPACE transition to space $currentspace redirected to stored returnstate $next" + } else { + if {[dict exists $::tomlish::parse::spaceSameTransitions $currentspace]} { + set next [dict get $::tomlish::parse::spaceSameTransitions $currentspace] + ::tomlish::log::info "--->> SAMESPACE transition to space $currentspace redirected state to $next (spaceSameTransitions)" + } else { + set next $currentspace + ::tomlish::log::info "--->> SAMESPACE transition to space $currentspace" + } + } + set result $next + } + zeropoppushspace { + if {$nest > 0} { + #pop back down to the root level (table-space) + spacestack pop + set parentinfo [spacestack peek] + set type [dict get $parentinfo type] + set target [dict get $parentinfo state] + + set last_space_action "pop" + set last_space_type $type + + #----- + #standard pop + set parentlevel [expr {$nest -1}] + lappend v($parentlevel) [set v($nest)] + incr nest -1 + #----- + } + #re-entrancy + + #set next [list PUSHSPACE [lindex $transition_to 1]] + set nexttokentype ${tokentype}2 ;#fake token type e.g tablename2 or tablearrayname2 + #::tomlish::log::notice "goNextState REENTRANCY. calling goNextState $nexttokentype $tokentype" + #set result [::tomlish::parse::goNextState $nexttokentype $tokentype] + ::tomlish::log::debug "--->> zeropoppushspace goNextState REENTRANCY. calling goNextState $nexttokentype $currentstate" + set transition_info [::tomlish::parse::goNextState $nexttokentype $tok $currentstate] + set result [dict get $transition_info newstate] + } + PUSHSPACE { + set original_target [dict get $transition_to PUSHSPACE] + if {[dict exists $transition_to returnstate]} { + #adjust the existing space record on the stack. + #struct::stack doesn't really support that - so we have to pop and re-push + #todo - investigate a custom stack implementation where we can efficiently lset the top of the stack + set currentspace [spacestack pop] + dict set currentspace returnstate [dict get $transition_to returnstate] + spacestack push $currentspace ;#return modified info to stack so when we POPSPACE the returnstate is available. + } + if {[dict exists $transition_to starttok]} { + set starttok [dict get $transition_to starttok] + } + spacestack push [dict create type space state $original_target] + + set last_space_action "push" + set last_space_type "space" + + if {[dict exists $transition_to state]} { + #an explicit state in the pushed space was requested in the stateMatrix - override the spacePushTransition (spacePushTransitions can be deprecated if we require explicitness?) + set next [dict get $transition_to state] + ::tomlish::log::info "--->> PUSHSPACE transition to space $original_target redirected state to $next by explicit 'state' entry" + } else { + #puts $::tomlish::parse::spacePushTransitions + if {[dict exists $::tomlish::parse::spacePushTransitions $original_target]} { + set next [dict get $::tomlish::parse::spacePushTransitions $original_target] + ::tomlish::log::info "--->> PUSHSPACE transition to space $original_target redirected state to $next (spacePushTransitions) " + } else { + set next $original_target + ::tomlish::log::info "--->> PUSHSPACE transition to space $original_target" + } + } + set result $next + } + TOSTATE { + if {[dict exists $transition_to returnstate]} { + #adjust the existing space record on the stack. + #struct::stack doesn't really support that - so we have to pop and re-push + #todo - investigate a custom stack implementation where we can efficiently lset the top of the stack + set currentspace [spacestack pop] + dict set currentspace returnstate [dict get $transition_to returnstate] + spacestack push $currentspace ;#return modified info to stack so when we POPSPACE the returnstate is available. + } + set result [dict get $transition_to TOSTATE] + } + default { + #simplified version of TOSTATE + set result [lindex $transition_to 0] ;#ignore everything but first word + } + } + } else { + ::tomlish::log::error "--->> No state transition defined from state $currentstate when tokentype $tokentype received" + set result "nostate" + } + lappend state_list [list tokentype $tokentype from $currentstate to $result] + set state $result + ::tomlish::log::notice "--->> STATE TRANSITION tokenType: '$tokentype' tok:$tok triggering '$currentstate' -> '$result' last_space_action:$last_space_action " + return [dict create prevstate $prevstate newstate $result space_action $last_space_action starttok $starttok] + } + + proc report_line {{line ""}} { + variable linenum + variable is_parsing + if {$is_parsing} { + if {$line eq ""} { + set line $linenum + } + return "Line Number: $line" + } else { + #not in the middle of parsing tomlish text - return nothing. + return "" + } + } + + #produce a *slightly* more readable string rep of the nest for puts etc. + proc nest_pretty1 {list} { + set prettier "{" + + foreach el $list { + if { [lindex $el 0] eq "NEWLINE"} { + append prettier "[list $el]\n" + } elseif {([llength $el] > 1) && ([lindex $el 0] in {KEY DQKEY SQKEY TABLE ARRAY})} { + append prettier [nest_pretty1 $el] + } else { + append prettier "[list $el] " + } + } + append prettier "}" + return $prettier + } + + proc set_tokenType {t} { + variable tokenType + variable tokenType_list + if {![info exists tokenType]} { + set tokenType "" + } + lappend tokenType_list $t + set tokenType $t + } + + proc switch_tokenType {t} { + variable tokenType + variable tokenType_list + lset tokenType_list end $t + set tokenType $t + } + + proc get_tokenType {} { + variable tokenType + return $tokenType + } + + proc _shortcircuit_startquotesequence {} { + variable tok + variable i + set toklen [tcl::string::length $tok] + if {$toklen == 1} { + set_tokenType "startquote" + incr i -1 + return -level 2 1 + } elseif {$toklen == 2} { + puts stderr "_shortcircuit_startquotesequence toklen 2" + set_tokenType "startquote" + set tok "\"" + incr i -2 + return -level 2 1 + } + } + + proc get_token_waiting {} { + variable token_waiting + return [lindex $token_waiting 0] + } + proc clear_token_waiting {} { + variable token_waiting + set token_waiting [list] + } + + #token_waiting is a list - but our standard case is to have only one + #in certain circumstances such as near eof we may have 2 + #the set_token_waiting function only allows setting when there is not already one waiting. + #we want to catch cases of inadvertently trying to set multiple + # - the reason being that the state transition triggered by the previous token may have invalidated the assumptions made when a token was added as waiting. + proc set_token_waiting {args} { + if {[llength $args] %2 != 0} { + error "tomlish set_token_waiting must have args of form: type value complete 0|1" + } + variable token_waiting + + if {[llength $token_waiting] && [dict get [lindex $token_waiting end] type] ne "eof"} { + #tokloop already set a token_waiting - but something (post tokloop processing?) is trying to set another + #we may need to remove the existing token_waiting and reset the tokloop index to the previous char so it's reprocessed in the possibly new context + #rather than attempt to make the right decision here - we raise an error and require the caller to check/handle it + set err "tomlish set_token_waiting already has token_waiting: [lindex $token_waiting 0]" + append err \n " - cannot add token_waiting: $args" + error $err + #set tomlish::parse::i [expr {[dict get $token_waiting startindex] -1}] + #set token_waiting [list] + } + + set waiting [dict create] + dict for {k v} $args { + switch -exact $k { + type - complete { + dict set waiting $k $v + } + value { + dict set waiting tok $v + } + startindex { + dict set waiting startindex $v + } + default { + error "tomlish set_token_waiting error - unrecognised key $k. known keys: [dict keys $args]" + } + } + } + if {![tcl::string::is boolean -strict [dict get $waiting complete]]} { + error "tomlish set_token_waiting error - 'complete' must be a boolean. got [dict get $waiting complete]" + } + if {![llength $token_waiting]} { + set token_waiting [list $waiting] + } else { + #an extra sanity-check that we don't have more than just the eof.. + if {[llength $token_waiting] > 1} { + set err "tomlish Unexpected. Existing token_waiting count > 1.\n" + foreach tw $token_waiting { + append err " $tw" \n + } + append err " - cannot add token_waiting: $waiting" + error $err + } + #last entry must be a waiting eof + set token_waiting [list $waiting [lindex $token_waiting end]] + } + return + } + + #returns 0 or 1 + #tomlish::parse::tok + #we attempt to do this without lookahead (potential use in streaming toml? for what benefit?) todo -final flag + # - the possible benefit is being able to more easily process in arbitrarily split chunks (although we would still have to watch crlf splitting ?) + # - interactive use? + + proc tok {s} { + variable nest + variable v + variable i + variable tok + variable type ;#character type + variable state ;#FSM + + + variable tokenType + variable tokenType_list + + + variable endToken + + variable lastChar + + variable braceCount + variable bracketCount + + + #------------------------------ + #Previous run found another (presumably single-char) token + #The normal case is for there to be only one dict in the list + #multiple is an exception - primarily for eof + variable token_waiting + if {[llength $token_waiting]} { + set waiting [lindex $token_waiting 0] + + set tokenType [dict get $waiting type] + set tok [dict get $waiting tok] + #todo: dict get $token_waiting complete + set token_waiting [lrange $token_waiting 1 end] + return 1 + } + #------------------------------ + + set resultlist [list] + set sLen [tcl::string::length $s] + + set slash_active 0 + set quote 0 + set c "" + set multi_dquote "" + for {} {$i < $sLen} {} { + if {$i > 0} { + set lastChar [tcl::string::index $s [expr {$i - 1}]] + } else { + set lastChar "" + } + + set c [tcl::string::index $s $i] + set cindex $i + set ctest [tcl::string::map {\{ lc \} rc \[ lb \] rb \" dq ' sq \\ bsl \r cr \n lf \t tab \uFEFF bom} $c] + tomlish::log::debug "- tokloop char <$ctest> index $i tokenType:$tokenType tok:<$tok>" + #puts "got char $c during tokenType '$tokenType'" + incr i ;#must incr here because we do returns inside the loop + + switch -exact -- $ctest { + # { + set dquotes $multi_dquote + set multi_dquote "" + set had_slash $slash_active + set slash_active 0 + + if {$had_slash} {append tok "\\"} ;#if tokentype not appropriate for \, we would already have errored out. + + if {[tcl::string::length $tokenType]} { + switch -exact -- $tokenType { + squote_seq { + incr i -1 + return 1 + } + startquotesequence { + _shortcircuit_startquotesequence + } + _start_squote_sequence { + incr i -[tcl::string::length $tok] + set_tokenType "startsquote" + return 1 + } + barekey { + error "tomlish Unexpected character '$c' during bare key. Only \[a-zA-Z0-9_-\] and a selection of letter-like chars allowed (see tomlish::utils::is_barekey). [tomlish::parse::report_line]" + } + whitespace { + # hash marks end of whitespace token + #do a return for the whitespace, set token_waiting + #set_token_waiting type comment value "" complete 1 + incr i -1 ;#leave comment for next run + return 1 + } + untyped_value { + #REVIEW! the spec isn't clear.. is whitespace after an int,bool etc required before comment? + #we will accept a comment marker as an immediate terminator of the untyped_value. + incr i -1 + return 1 + } + starttablename - starttablearrayname { + #fix! + error "tomlish Character '#' is invalid first character for $tokenType. [tomlish::parse::report_line]" + } + tablename - tablearrayname { + #invalid in bare parts - but allowed in quoted parts - let tablename parser sort it out + append tok $c + } + default { + #dquotedkey, itablequotedkey, string,literal, multistring + append tok $c + } + } + } else { + switch -- $state { + multistring-space { + set_tokenType stringpart + set tok "" + if {$had_slash} { + append tok "\\" + } + append tok "$dquotes#" + } + multiliteral-space { + set_tokenType "literalpart" + set tok "#" + } + default { + #start of token if we're not in a token + set_tokenType comment + set tok "" ;#The hash is not part of the comment data + } + } + } + } + lc { + #left curly brace + set dquotes $multi_dquote + set multi_dquote "" + set had_slash $slash_active + set slash_active 0 + + if {[tcl::string::length $tokenType]} { + switch -exact -- $tokenType { + squote_seq { + incr i -1 + return 1 + } + startquotesequence { + _shortcircuit_startquotesequence + } + _start_squote_sequence { + incr i -[tcl::string::length $tok] + set_tokenType "startsquote" + return 1 + } + literal - literalpart - squotedkey { + append tok $c + } + string - dquotedkey { + if {$had_slash} {append tok "\\"} + append tok $c + } + stringpart { + if {$had_slash} {append tok "\\"} + append tok $dquotes$c + } + starttablename - starttablearrayname { + #*bare* tablename can only contain letters,digits underscores + error "tomlish Invalid tablename first character \{ [tomlish::parse::report_line]" + } + tablename - tablearrayname { + #valid in quoted parts + append tok $c + } + comment { + if {$had_slash} {append tok "\\"} + append tok "\{" + } + default { + #end any other token. + incr i -1 + return 1 + } + } + } else { + switch -exact -- $state { + itable-keyval-value-expected - keyval-value-expected { + #switch last key to tablename?? + set_tokenType "startinlinetable" + set tok "\{" + return 1 + } + array-space - array-syntax { + #nested anonymous inline table + set_tokenType "startinlinetable" + set tok "\{" + return 1 + } + table-space { + #invalid - but allow parser statemachine to report it. ? + set_tokenType "startinlinetable" + set tok "\{" + return 1 + } + multistring-space { + set_tokenType "stringpart" + set tok "" + if {$had_slash} { + append tok "\\" + } + append tok "$dquotes\{" + } + multiliteral-space { + set_tokenType "literalpart" + set tok "\{" + } + default { + error "tomlish state: '$state'. left brace case not implemented [tomlish::parse::report_line]" + } + } + } + + } + rc { + #right curly brace + set dquotes $multi_dquote + set multi_dquote "" + set had_slash $slash_active + set slash_active 0 + + if {[tcl::string::length $tokenType]} { + switch -exact -- $tokenType { + squote_seq { + incr i -1 + return 1 + } + startquotesequence { + _shortcircuit_startquotesequence + } + _start_squote_sequence { + incr i -[tcl::string::length $tok] + set_tokenType "startsquote" + return 1 + } + literal - literalpart - squotedkey { + append tok $c + } + XXXitablesquotedkey { + } + string - dquotedkey - itablequotedkey - comment { + if {$had_slash} {append tok "\\"} + append tok $c + } + stringpart { + if {$had_slash} {append tok "\\"} + append tok $dquotes$c + } + starttablename - tablename { + if {$had_slash} {append tok "\\"} + #invalid! - but leave for datastructure loading stage to catch + set_token_waiting type endinlinetable value "" complete 1 startindex $cindex + return 1 + } + starttablearrayname - tablearrayname { + if {$had_slash} {append tok "\\"} + #invalid! - but leave for datastructure loading stage to catch + set_token_waiting type endtablearrayname value "" complete 1 startindex $cindex + return 1 + } + default { + #end any other token + incr i -1 + return 1 + } + } + } else { + #$slash_active not relevant when no tokenType + switch -exact -- $state { + table-space { + #invalid - but allow parser statemachine to report it. ? + set_tokenType "endinlinetable" + set tok "\}" + return 1 + } + itable-space { + set_tokenType "endinlinetable" + set tok "\}" + return 1 + } + tablename-state { + #e.g [] - empty tablename - allowed or not? + #empty tablename/tablearrayname ? + #error "unexpected tablename problem" + + set_tokenType "endinlinetable" + set tok "" ;#no output into the tomlish list for this token + return 1 + } + tablearrayname-state { + error "tomlish unexpected tablearrayname-state problem" + set_tokenType "endinlinetable" + set tok "" ;#no output into the tomlish list for this token + return 1 + } + array-syntax - array-space { + #invalid + set_tokenType "endinlinetable" + set tok "\}" + return 1 + } + itable-val-tail { + set_tokenType "endinlinetable" + set tok "" + #we need to pop the keyval - and then reprocess to pop the inlinetable - so we incr -1 + incr i -1 + return 1 + } + itable-keyval-syntax { + error "tomlish endinlinetable unexpected at this point. Expecting key=val syntax [tomlish::parse::report_line]" + } + multistring-space { + set_tokenType "stringpart" + set tok "" + if {$had_slash} { + append tok "\\" + } + append tok "$dquotes\}" + } + multiliteral-space { + set_tokenType "literalpart" ; #review + set tok "\}" + } + default { + #JMN2024b keyval-tail? + error "tomlish state '$state'. endinlinetable case not implemented [tomlish::parse::report_line]" + } + } + } + + } + lb { + #left square bracket + set dquotes $multi_dquote + set multi_dquote "" + set had_slash $slash_active + set slash_active 0 + + if {[tcl::string::length $tokenType]} { + switch -exact -- $tokenType { + squote_seq { + incr i -1 + return 1 + } + startquotesequence { + _shortcircuit_startquotesequence + } + _start_squote_sequence { + incr i -[tcl::string::length $tok] + set_tokenType "startsquote" + return 1 + } + literal - literalpart - squotedkey { + append tok $c + } + string - dquotedkey - itablequotedkey { + if {$had_slash} {append tok "\\"} + append tok $c + } + stringpart { + if {$had_slash} {append tok "\\"} + append tok $dquotes$c + } + starttablename { + #change the tokenType + switch_tokenType "starttablearrayname" + set tok "" ;#no output into the tomlish list for this token + #any following whitespace is part of the tablearrayname, so return now + return 1 + } + tablename - tablearrayname { + #e.g a."x[0]".c is valid table name sequence - so we need to track quoting to know if rb is an end token + if {$had_slash} { + #resultant tablename may be invalid - but leave for datastructure loading stage to catch + #append tok "\\[" + append tok {\[} + } else { + if {[tomlish::utils::tok_in_quotedpart $tok] eq ""} { + #invalid at this point - state machine should disallow: + # table -> starttablearrayname + # tablearray -> starttablearrayname + set_token_waiting type starttablearrayname value "" complete 1 startindex $cindex + return 1 + } else { + #we appear to still be in single or double quoted section + append tok "\[" + } + } + } + comment { + if {$had_slash} {append tok "\\"} + append tok "\[" + } + default { + #end any other token. + incr i -1 + return 1 + } + } + } else { + #$slash_active not relevant when no tokenType + switch -exact -- $state { + keyval-value-expected - itable-keyval-value-expected { + set_tokenType "startarray" + set tok "\[" + return 1 + } + array-space - array-syntax { + #nested array? + set_tokenType "startarray" + set tok "\[" + return 1 + #error "state: array-space. startarray case not implemented [tomlish::parse::report_line]" + } + table-space { + #table name + #assume it's a single bracket - but we need to wait for non-bracket to confirm it's not a tablearray + #note that a starttablearrayname token may contain whitespace between the brackets + # e.g \[ \[ + set_tokenType "starttablename" + set tok "" ;#there is no output into the tomlish list for this token + } + multistring-space { + set_tokenType "stringpart" + set tok "" + if {$had_slash} { + append tok "\\" + } + append tok "$dquotes\[" + } + multiliteral-space { + set_tokenType "literalpart" + set tok "\[" + } + itable-space { + #handle state just to give specific error msg + error "tomlish state: '$state'. Left square bracket invalid. Cannot start array in inline table without key. Use key=\[\] syntax. [tomlish::parse::report_line]" + } + default { + error "tomlish state: '$state'. startarray case not implemented [tomlish::parse::report_line]" + } + } + } + } + rb { + #right square bracket + set dquotes $multi_dquote + set multi_dquote "" + set had_slash $slash_active + set slash_active 0 + + if {[tcl::string::length $tokenType]} { + switch -exact -- $tokenType { + squote_seq { + incr i -1 + return 1 + } + startquotesequence { + _shortcircuit_startquotesequence + } + _start_squote_sequence { + incr i -[tcl::string::length $tok] + set_tokenType "startsquote" + return 1 + } + literal - literalpart - squotedkey { + append tok $c + } + XXXitablesquotedkey { + } + string - dquotedkey - itablequotedkey { + if {$had_slash} {append tok "\\"} + append tok $c + } + stringpart { + if {$had_slash} {append tok "\\"} + append tok $dquotes$c + } + comment { + if {$had_slash} {append tok "\\"} + append tok $c + } + whitespace { + if {$state eq "multistring-space"} { + #???? + incr i -1 + if {$had_slash} {incr i -1} ;#reprocess + return 1 + } else { + incr i -1 + if {$had_slash} {incr i -1} ;#reprocess + return 1 + } + } + tablename { + #e.g a."x[0]".c is valid table name sequence - so we need to track quoting to know if rb is an end token + if {$had_slash} { + #resultant tablename may be invalid - but leave for datastructure loading stage to catch + append tok "\\]" + } else { + if {[tomlish::utils::tok_in_quotedpart $tok] eq ""} { + set_token_waiting type endtablename value "" complete 1 startindex $cindex + return 1 + } else { + #we appear to still be in single or double quoted section + append tok "]" + } + } + } + tablearrayname { + #e.g a."x[0]".c is valid table name sequence - so we need to track quoting to know if rb is an end token + if {$had_slash} { + #resultant tablename may be invalid - but leave for datastructure loading stage to catch + append tok "\\]" + } else { + if {[tomlish::utils::tok_in_quotedpart $tok] eq ""} { + set_token_waiting type endtablearrayname value "" complete 1 startindex $cindex + return 1 + } else { + #we appear to still be in single or double quoted section + append tok "]" + } + } + } + XXXtablearraynames { + puts "rb @ tablearraynames ??" + #switch? + + #todo? + if {$had_slash} {append tok "\\"} + #invalid! - but leave for datastructure loading stage to catch + set_token_waiting type endtablearrayname value "" complete 1 startindex $cindex + return 1 + } + default { + incr i -1 + return 1 + } + } + } else { + #$slash_active not relevant when no tokenType + switch -exact -- $state { + array-syntax - array-space { + #invalid - but allow parser statemachine to report it. + set_tokenType "endarray" + set tok "\]" + return 1 + } + table-space { + #invalid - but allow parser statemachine to report it. ? + set_tokenType "endarray" + set tok "\]" + return 1 + } + tablename-state { + #e.g [] - empty tablename - allowed or not? + #empty tablename/tablearrayname ? + #error "unexpected tablename problem" + + set_tokenType "endtablename" + set tok "" ;#no output into the tomlish list for this token + return 1 + } + tablearrayname-state { + error "tomlish unexpected tablearrayname problem" + set_tokenType "endtablearray" + set tok "" ;#no output into the tomlish list for this token + return 1 + } + tablearrayname-tail { + #[[xxx] + set_tokenType "endtablename" + #sequence: starttablename -> starttablearrayname -> endtablearrayname -> endtablename + return 1 + } + multistring-space { + set_tokenType "stringpart" + set tok "" + if {$had_slash} { + append tok "\\" + } + append tok "$dquotes\]" + } + multiliteral-space { + set_tokenType "literalpart" + set tok "\]" + } + default { + error "tomlish state '$state'. endarray case not implemented [tomlish::parse::report_line]" + } + } + } + } + bsl { + set dquotes $multi_dquote + set multi_dquote "" ;#!! + #backslash + if {[tcl::string::length $tokenType]} { + switch -exact -- $tokenType { + squote_seq { + incr i -1 + return 1 + } + startquotesequence { + _shortcircuit_startquotesequence + } + _start_squote_sequence { + incr i -[tcl::string::length $tok] + set_tokenType "startsquote" + return 1 + } + whitespace { + if {$state eq "multistring-space"} { + #end whitespace token + incr i -1 ;#reprocess bsl in next run + return 1 + } else { + error "tomlish Unexpected backslash during whitespace. [tomlish::parse::report_line]" + } + } + literal - literalpart - squotedkey { + #never need to set slash_active true when in single quoted tokens + append tok "\\" + set slash_active 0 + } + XXXitablesquotedkey { + } + string - dquotedkey - itablequotedkey - comment { + if {$slash_active} { + set slash_active 0 + append tok "\\\\" + } else { + set slash_active 1 + } + } + stringpart { + if {$slash_active} { + #assert - quotes empty - or we wouldn't have slash_active + set slash_active 0 + append tok "\\\\" + } else { + append tok $dquotes + set slash_active 1 + } + } + starttablename - starttablearrayname { + error "tomlish backslash is invalid as first character of $tokenType [tomlish::parse::report_line]" + } + tablename - tablearrayname { + if {$slash_active} { + set slash_active 0 + append tok "\\\\" + } else { + set slash_active 1 + } + } + barekey { + error "tomlish Unexpected backslash during barekey. [tomlish::parse::report_line]" + } + default { + error "tomlish Backslash unexpected during tokentype: '$tokenType'. [tomlish::parse::report_line]" + } + } + } else { + switch -exact -- $state { + multistring-space { + if {$slash_active} { + set_tokenType "stringpart" + set tok "\\\\" + set slash_active 0 + } else { + if {$dquotes ne ""} { + set_tokenType "stringpart" + set tok $dquotes + } + set slash_active 1 + } + } + multiliteral-space { + #nothing can be escaped in multiliteral-space - not even squotes (?) review + set_tokenType "literalpart" + set tok "\\" + } + default { + error "tomlish tok error: Unexpected backslash when no token is active. [tomlish::parse::report_line]" + } + } + } + } + sq { + #single quote + set had_slash $slash_active + set slash_active 0 + if {[tcl::string::length $tokenType]} { + switch -exact -- $tokenType { + squote_seq { + #short squote_seq tokens are returned if active during any other character + #longest allowable for leading/trailing are returned here + #### + set existingtoklen [tcl::string::length $tok] ;#toklen prior to this squote + switch -- $state { + leading-squote-space { + append tok $c + if {$existingtoklen > 2} { + error "tomlish tok error: squote_seq unexpected length $existingtoklen when another received" + } elseif {$existingtoklen == 2} { + return 1 ;#return tok ''' + } + } + trailing-squote-space { + append tok $c + if {$existingtoklen == 4} { + #maxlen to be an squote_seq is multisquote + 2 = 5 + #return tok ''''' + return 1 + } + } + default { + error "tomlish tok error: squote_seq in unexpected state '$state' - expected leading-squote-space or trailing-squote-space" + } + } + } + whitespace { + #end whitespace + incr i -1 ;#reprocess sq + return 1 + } + startquotesequence { + _shortcircuit_startquotesequence + } + _start_squote_sequence { + #temp token creatable only during value-expected or array-space + switch -- [tcl::string::length $tok] { + 1 { + append tok $c + } + 2 { + #switch? + append tok $c + set_tokenType triple_squote + return 1 + } + default { + error "tomlish unexpected token length [tcl::string::length $tok] in '_start_squote_sequence'" + } + } + } + literal { + #slash_active always false + #terminate the literal + set_token_waiting type endsquote value "'" complete 1 startindex $cindex + return 1 + } + literalpart { + #ended by ''' - but final could be '''' or ''''' (up to 2 squotes allowed directly before ending triple squote sequence) + #todo + # idea: end this literalpart (possibly 'temporarily') + # let the sq be reprocessed in the multiliteral-space to push an end-multiliteral-sequence to state stack + # upon popping end-multiliteral-sequence - stitch quotes back into this literalpart's token (if either too short - or a long ending sequence as shown above) + incr i -1 ;#throw the "'" back to loop - will be added to an squote_seq token for later processing + return 1 + } + XXXitablesquotedkey { + set_token_waiting type endsquote value "'" complete 1 startindex $cindex + return 1 + } + squotedkey { + ### + #set_token_waiting type endsquote value "'" complete 1 + return 1 + } + starttablename - starttablearrayname { + #!!! + incr i -1 + return 1 + } + tablename - tablearrayname { + append tok $c + } + barekey { + #not clear why o'shennanigan shouldn't be a legal barekey - but it seems not to be. + error "tomlish Unexpected single quote during barekey. [tomlish::parse::report_line]" + } + default { + append tok $c + } + } + } else { + switch -exact -- $state { + array-space { + set_tokenType "_start_squote_sequence" + set tok "'" + } + itable-keyval-value-expected - keyval-value-expected { + set_tokenType "squote_seq_begin" + set tok "'" + return 1 + } + table-space { + #tests: squotedkey.test + set_tokenType "squotedkey" + set tok "" + } + itable-space { + #tests: squotedkey_itable.test + set_tokenType "squotedkey" + set tok "" + } + XXXitable-space { + #future - could there be multiline keys? + #this would allow arbitrary tcl dicts to be stored in toml + #probably unlikely - as it's perhaps not very 'minimal' or ergonomic for config files + set_tokenType "squote_seq_begin" + set tok "'" + return 1 + } + tablename-state { + #first char in tablename-state/tablearrayname-state + set_tokenType tablename + append tok "'" + } + tablearrayname-state { + set_tokenType tablearrayname + append tok "'" + } + literal-state { + tomlish::log::debug "- tokloop sq during literal-state with no tokentype - empty literal?" + set_tokenType literal + incr -1 + return 1 + } + multistring-space { + error "tomlish unimplemented - squote during state '$state'. [tomlish::parse::report_line]" + } + multiliteral-space { + #each literalpart is not necessarily started/ended with squotes - but may contain up to 2 in a row + #we are building up an squote_seq to determine if + #a) it is shorter than ''' so belongs in a literalpart (either previous, subsequent or it's own literalpart between newlines + #b) it is exactly ''' and we can terminate the whole multiliteral + #c) it is 4 or 5 squotes where the first 1 or 2 beling in a literalpart and the trailing 3 terminate the space + set_tokenType "squote_seq_begin" + set tok "'" + return 1 + } + dottedkey-space { + set_tokenType squotedkey + } + default { + error "tomlish unhandled squote during state '$state'. [tomlish::parse::report_line]" + } + } + } + + } + dq { + #double quote + set had_slash $slash_active + set slash_active 0 + + if {[tcl::string::length $tokenType]} { + switch -exact -- $tokenType { + squote_seq { + incr i -1 + return 1 + } + startquotesequence { + set toklen [tcl::string::length $tok] + if {$toklen == 1} { + append tok $c + } elseif {$toklen == 2} { + append tok $c + #switch vs set? + set_tokenType "startmultiquote" + return 1 + } else { + error "tomlish unexpected token length $toklen in 'startquotesequence'" + } + } + _start_squote_sequence { + incr i -[tcl::string::length $tok] + set_tokenType "startsquote" + return 1 + + #set toklen [tcl::string::length $tok] + #switch -- $toklen { + # 1 { + # set_tokenType "startsquote" + # incr i -1 + # return 1 + # } + # 2 { + # set_tokenType "startsquote" + # incr i -2 + # return 1 + # } + # default { + # error "tomlish unexpected _start_squote_sequence length $toklen" + # } + #} + } + literal - literalpart { + append tok $c + } + string { + if {$had_slash} { + append tok "\\" $c + } else { + #unescaped quote always terminates a string? + set_token_waiting type endquote value "\"" complete 1 startindex $cindex + return 1 + } + } + stringpart { + #sub element of multistring + if {$had_slash} { + append tok "\\" $c + } else { + #incr i -1 + + if {$multi_dquote eq "\"\""} { + set_token_waiting type endmultiquote value "\"\"\"" complete 1 startindex [expr {$cindex -2}] + set multi_dquote "" + return 1 + } else { + append multi_dquote "\"" + } + } + } + whitespace { + switch -exact -- $state { + multistring-space { + #REVIEW + if {$had_slash} { + incr i -2 + return 1 + } else { + switch -- [tcl::string::length $multi_dquote] { + 2 { + set_token_waiting type endmultiquote value "\"\"\"" complete 1 startindex [expr {$cindex-2}] + set multi_dquote "" + return 1 + } + 1 { + incr i -2 + return 1 + } + 0 { + incr i -1 + return 1 + } + } + } + } + keyval-value-expected { + #end whitespace token and reprocess + incr i -1 + return 1 + + #if {$multi_dquote eq "\"\""} { + # set_token_waiting type startmultiquote value "\"\"\"" complete 1 + # set multi_dquote "" + # return 1 + #} else { + # #end whitespace token and reprocess + # incr i -1 + # return 1 + #} + } + table-space - itable-space { + incr i -1 + return 1 + } + default { + set_token_waiting type startquote value "\"" complete 1 startindex $cindex + return 1 + } + } + } + comment { + if {$had_slash} {append tok "\\"} + append tok $c + } + XXXdquotedkey - XXXitablequotedkey { + if {$had_slash} { + append tok "\\" + append tok $c + } else { + set_token_waiting type endquote value "\"" complete 1 startindex $cindex + return 1 + } + } + dquotedkey { + ### + if {$had_slash} { + append tok "\\" + append tok $c + } else { + #set_token_waiting type endsquote value "'" complete 1 + return 1 + } + } + squotedkey { + append tok $c + } + tablename - tablearrayname { + if {$had_slash} {append tok "\\"} + append tok $c + } + starttablename - starttablearrayname { + incr i -1 ;## + return 1 + } + default { + error "tomlish got quote during tokenType '$tokenType' [tomlish::parse::report_line]" + } + } + } else { + #$slash_active not relevant when no tokenType + #token is string only if we're expecting a value at this point + switch -exact -- $state { + array-space { + #!? start looking for possible multistartquote + #set_tokenType startquote + #set tok $c + #return 1 + set_tokenType "startquotesequence" ;#one or more quotes in a row - either startquote or multistartquote + set tok $c + } + keyval-value-expected - itable-keyval-value-expected { + set_tokenType "startquotesequence" ;#one or more quotes in a row - either startquote or multistartquote + set tok $c + } + multistring-space { + #TODO - had_slash!!! + #REVIEW + if {$had_slash} { + set_tokenType "stringpart" + set tok "\\\"" + set multi_dquote "" + } else { + if {$multi_dquote eq "\"\""} { + tomlish::log::debug "- tokloop char dq ---> endmultiquote" + set_tokenType "endmultiquote" + set tok "\"\"\"" + return 1 + #set_token_waiting type endmultiquote value "\"\"\"" complete 1 + #set multi_dquote "" + #return 1 + } else { + append multi_dquote "\"" + } + } + } + multiliteral-space { + set_tokenType "literalpart" + set tok "\"" + } + XXXtable-space { + set_tokenType "startquote" + set tok $c + return 1 + } + XXXitable-space { + set_tokenType "startquote" + set tok $c + } + table-space - itable-space { + set_tokenType "dquotedkey" + set tok "" + } + tablename-state { + set_tokenType tablename + set tok $c + } + tablearrayname-state { + set_tokenType tablearrayname + set tok $c + } + dottedkey-space { + set_tokenType dquotedkey + set tok "" + + #only if complex keys become a thing + #set_tokenType dquote_seq_begin + #set tok $c + } + default { + error "tomlish Unexpected quote during state '$state' [tomlish::parse::report_line]" + } + } + } + } + = { + set dquotes $multi_dquote + set multi_dquote "" ;#!! + set had_slash $slash_active + set slash_active 0 + + if {[tcl::string::length $tokenType]} { + switch -exact -- $tokenType { + squote_seq { + incr i -1 + return 1 + } + startquotesequence { + _shortcircuit_startquotesequence + } + _start_squote_sequence { + incr i -[tcl::string::length $tok] + set_tokenType "startsquote" + return 1 + } + literal - literalpart - squotedkey { + #assertion had_slash 0, multi_dquote "" + append tok $c + } + string - comment - dquotedkey - itablequotedkey { + #for these tokenTypes an = is just data. + if {$had_slash} {append tok "\\"} + append tok $c + } + stringpart { + if {$had_slash} {append tok "\\"} + append tok $dquotes$c + } + whitespace { + if {$state eq "multistring-space"} { + set backlen [expr {[tcl::string::length $dquotes] + 1}] + incr i -$backlen + return 1 + } else { + set_token_waiting type equal value = complete 1 startindex $cindex + return 1 + } + } + barekey { + #set_token_waiting type equal value = complete 1 + incr i -1 + return 1 + } + starttablename - starttablearrayname { + error "tomlish Character '=' is invalid first character for $tokenType. [tomlish::parse::report_line]" + } + tablename - tablearrayname { + #invalid in bare name - but valid in quoted parts - leave for tablename parser to sort out + append tok $c + } + default { + error "tomlish unexpected = character during tokentype $tokenType. case not implemented. [tomlish::parse::report_line]" + } + } + } else { + switch -exact -- $state { + multistring-space { + set_tokenType "stringpart" + set tok "" + if {$had_slash} { + append tok "\\" + } + append tok ${dquotes}= + } + multiliteral-space { + set_tokenType "literalpart" + set tok "=" + } + dottedkey-space { + set_tokenType "equal" + set tok "=" + return 1 + } + default { + set_tokenType "equal" + set tok = + return 1 + } + } + } + } + cr { + #REVIEW! + set dquotes $multi_dquote + set multi_dquote "" ;#!! + # \r carriage return + if {$slash_active} {append tok "\\"} ;#if tokentype not appropriate for \, we would already have errored out. + set slash_active 0 + if {[tcl::string::length $tokenType]} { + switch -exact -- $tokenType { + newline { + #we have received a double cr + ::tomlish::log::warn "double cr - will generate cr token. needs testing" + set_tokenType "cr" ;#lone cr token will generally raise an error - but let state machine handle it + incr i -1 + return 1 + } + squote_seq { + incr i -1 + return 1 + } + startquotesequence { + _shortcircuit_startquotesequence + } + _start_squote_sequence { + incr i -[tcl::string::length $tok] + set_tokenType "startsquote" + return 1 + } + literal { + append tok $c + } + literalpart { + #part of MLL string (multi-line literal string) + #we need to split out crlf as a separate NEWLINE to be consistent + ::tomlish::log::warn "literalpart ended by cr - needs testing" + #return literalpart temporarily - allow cr to be reprocessed from multiliteral-space + incr i -1 + return 1 + } + stringpart { + #stringpart is a part of MLB string (multi-line basic string) + #throw back the cr - if followed by lf it will become a {NEWLINE crlf} entry within the MULTISTRING list (e.g between STRINGPART entries) + incr i -1 + return 1 + } + starttablename - starttablearrayname { + error "tomlish Character is invalid first character for $tokenType. [tomlish::parse::report_line]" + } + tablename - tablearrayname { + #could in theory be valid in quoted part of name + #review - might be better just to disallow here + append tok $c + } + whitespace { + #it should technically be part of whitespace if not followed by lf + #but outside of values we are also free to map it to be another NEWLINE instead? REVIEW + incr i -1 + return 1 + } + untyped_value { + incr i -1 + return 1 + } + default { + #!todo - error out if cr inappropriate for tokenType + append tok $c + } + } + } else { + #lf may be appended if next + #review - lone cr as newline? - this is uncommon - but so is lone cr in a string(?) + set_tokenType "newline" + set tok cr + } + } + lf { + # \n newline + set dquotes $multi_dquote + set multi_dquote "" ;#!! + set had_slash $slash_active + set slash_active 0 + if {[tcl::string::length $tokenType]} { + switch -exact -- $tokenType { + newline { + #review + #this lf is the trailing part of a crlf + append tok lf ;#assert we should now have tok "crlf" - as a previous cr is the only way to have an incomplete newline tok + return 1 + } + squote_seq { + incr i -1 + return 1 + } + startquotesequence { + _shortcircuit_startquotesequence + } + _start_squote_sequence { + incr i -[tcl::string::length $tok] + set_tokenType "startsquote" + return 1 + } + literal { + #nl is not allowed *within* a literal - require multiliteral syntax for any literal containing a newline ''' ''' + #even though we terminate the literal without the closing quote here - the token_waiting newline should trigger a state error + set_token_waiting type newline value lf complete 1 startindex $cindex + return 1 + } + literalpart { + #we allow newlines - but store them within the multiliteral as their own element + #This is a legitimate end to the literalpart - but not the whole multiliteral + set_token_waiting type newline value lf complete 1 startindex $cindex + return 1 + } + stringpart { + if {$dquotes ne ""} { + append tok $dquotes + incr i -1 + return 1 + } else { + if {$had_slash} { + #emit the stringpart (return 1), queue the continuation, go back 1 to reprocess the lf (incr i -1) + set_token_waiting type continuation value \\ complete 1 startindex [expr {$cindex-1}] + incr i -1 + return 1 + } else { + set_token_waiting type newline value lf complete 1 startindex $cindex + return 1 + } + } + } + starttablename - tablename - tablearrayname - starttablearrayname { + error "tomlish Character is invalid in $tokenType. [tomlish::parse::report_line]" + } + default { + #newline ends all other tokens. + #note for string: we don't add (raw unescaped) newline to simple string. (must use multi-string for this) + #note for whitespace: + # we will use the convention that \n terminates the current whitespace even if whitespace follows + # ie whitespace is split into separate whitespace tokens at each newline + + #puts "-------------- newline lf during tokenType $tokenType" + set_token_waiting type newline value lf complete 1 startindex $cindex + return 1 + } + } + } else { + switch -exact -- $state { + multistring-space { + if {$had_slash} { + set_tokenType "continuation" + set tok "\\" + incr i -1 + return 1 + } else { + if {$dquotes ne ""} { + #e.g one or 2 quotes just before nl + set_tokenType "stringpart" + set tok $dquotes + incr i -1 + return 1 + } + set_tokenType "newline" + set tok lf + return 1 + } + } + multiliteral-space { + #assert had_slash 0, multi_dquote "" + set_tokenType "newline" + set tok "lf" + return 1 + } + default { + #ignore slash? error? + set_tokenType "newline" + set tok lf + return 1 + } + } + #if {$had_slash} { + # #CONT directly before newline - allows strings_5_byteequivalent test to pass + # set_tokenType "continuation" + # set tok "\\" + # incr i -1 + # return 1 + #} else { + # set_tokenType newline + # set tok lf + # return 1 + #} + } + } + , { + set dquotes $multi_dquote + set multi_dquote "" + set had_slash $slash_active + set slash_active 0 + if {[tcl::string::length $tokenType]} { + switch -exact -- $tokenType { + newline { + #incomplete newline + set_tokenType "cr" + incr i -1 + return 1 + } + squote_seq { + incr i -1 + return 1 + } + startquotesequence { + _shortcircuit_startquotesequence + } + _start_squote_sequence { + incr i -[tcl::string::length $tok] + set_tokenType "startsquote" + return 1 + } + comment - tablename - tablearrayname { + if {$had_slash} {append tok "\\"} + append tok , + } + string - dquotedkey - itablequotedkey { + if {$had_slash} {append tok "\\"} + append tok $c + } + stringpart { + #stringpart can have up to 2 quotes too + if {$had_slash} {append tok "\\"} + append tok $dquotes$c + } + literal - literalpart - squotedkey { + #assert had_slash always 0, multi_dquote "" + append tok $c + } + whitespace { + if {$state eq "multistring-space"} { + set backlen [expr {[tcl::string::length $dquotes] + 1}] + incr i -$backlen + return 1 + } else { + set_token_waiting type comma value "," complete 1 startindex $cindex + return 1 + } + } + default { + set_token_waiting type comma value "," complete 1 startindex $cindex + if {$had_slash} {append tok "\\"} + return 1 + } + } + } else { + switch -exact -- $state { + multistring-space { + set_tokenType "stringpart" + set tok "" + if {$had_slash} {append tok "\\"} + append tok "$dquotes," + } + multiliteral-space { + #assert had_slash 0, multi_dquote "" + set_tokenType "literalpart" + set tok "," + } + default { + set_tokenType "comma" + set tok "," + return 1 + } + } + } + } + . { + set dquotes $multi_dquote + set multi_dquote "" ;#!! + set had_slash $slash_active + set slash_active 0 + if {[tcl::string::length $tokenType]} { + switch -exact -- $tokenType { + newline { + #incomplete newline + set_tokenType "cr" + incr i -1 + return 1 + } + squote_seq { + incr i -1 + return 1 + } + startquotesequence { + _shortcircuit_startquotesequence + } + _start_squote_sequence { + incr i -[tcl::string::length $tok] + set_tokenType "startsquote" + return 1 + } + comment - untyped_value { + if {$had_slash} {append tok "\\"} + append tok $c + } + string - dquotedkey - itablequotedkey { + if {$had_slash} {append tok "\\"} + append tok $c + } + stringpart { + if {$had_slash} {append tok "\\"} + append tok $dquotes$c + } + literal - literalpart - squotedkey { + #assert had_slash always 0, multi_dquote "" + append tok $c + } + whitespace { + switch -exact -- $state { + multistring-space { + set backchars [expr {[tcl::string::length $dquotes] + 1}] + if {$had_slash} { + incr backchars 1 + } + incr i -$backchars + return 1 + } + xxxdottedkey-space { + incr i -1 + return 1 + } + dottedkey-space-tail { + incr i -1 + return 1 + } + default { + error "tomlish Received period during tokenType 'whitespace' [tomlish::parse::report_line]" + } + } + } + starttablename - starttablearrayname { + #This would correspond to an empty table name + error "tomlish Character '.' is not allowed as first character ($tokenType). [tomlish::parse::report_line]" + } + tablename - tablearrayname { + #subtable - split later - review + append tok $c + } + barekey { + #e.g x.y = 1 + #we need to transition the barekey to become a structured table name ??? review + #x is the tablename y is the key + set_token_waiting type dotsep value "." complete 1 startindex $cindex + return 1 + } + default { + error "tomlish Received period during tokenType '$tokenType' [tomlish::parse::report_line]" + #set_token_waiting type period value . complete 1 + #return 1 + } + } + } else { + switch -exact -- $state { + multistring-space { + set_tokenType "stringpart" + set tok "" + if {$had_slash} {append tok "\\"} + append tok "$dquotes." + } + multiliteral-space { + set_tokenType "literalpart" + set tok "." + } + XXXdottedkey-space { + ### obs? + set_tokenType "dotsep" + set tok "." + return 1 + } + dottedkey-space-tail { + ### + set_tokenType "dotsep" + set tok "." + return 1 + } + default { + set_tokenType "untyped_value" + set tok "." + } + } + } + + } + " " { + set dquotes $multi_dquote + set multi_dquote "" ;#!! + if {[tcl::string::length $tokenType]} { + set had_slash $slash_active + set slash_active 0 + switch -exact -- $tokenType { + newline { + #incomplete newline + set_tokenType "cr" + incr i -1 + return 1 + } + squote_seq { + incr i -1 + return 1 + } + startquotesequence { + _shortcircuit_startquotesequence + } + _start_squote_sequence { + incr i -[tcl::string::length $tok] + set_tokenType "startsquote" + return 1 + } + barekey { + #todo had_slash - emit token or error + #whitespace is a terminator for bare keys + #set_token_waiting type whitespace value $c complete 1 + incr i -1 + return 1 + } + untyped_value { + #unquoted values (int,date,float etc) are terminated by whitespace + #set_token_waiting type whitespace value $c complete 1 + incr i -1 + return 1 + } + comment { + if {$had_slash} { + append tok "\\" + } + append tok $dquotes$c + } + string - dquotedkey - itablequotedkey { + if {$had_slash} { append tok "\\" } + append tok $c + } + stringpart { + #for stringpart we store WS separately for ease of processing continuations (CONT stripping) + if {$had_slash} { + #REVIEW + #emit the stringpart - go back to the slash + incr i -2 + return 1 + } else { + #split into STRINGPART aaa WS " " + append tok $dquotes + incr i -1 + return 1 + } + } + literal - literalpart - squotedkey { + append tok $c + } + whitespace { + if {$state eq "multistring-space"} { + if {$dquotes ne ""} { + #end whitespace token + #go back by the number of quotes plus this space char + set backchars [expr {[tcl::string::length $dquotes] + 1}] + incr i -$backchars + return 1 + } else { + append tok $c + } + } else { + append tok $c + } + } + starttablename - starttablearrayname { + incr i -1 + return 1 + } + tablename - tablearrayname { + #include whitespace in the tablename/tablearrayname + #Will need to be normalized upon interpreting the tomlish as a datastructure + append tok $c + } + default { + error "tomlish Received whitespace space during tokenType '$tokenType' [tomlish::parse::report_line]" + } + } + } else { + set had_slash $slash_active + set slash_active 0 + switch -exact -- $state { + tablename-state { + #tablename can have leading,trailing and interspersed whitespace! + #These will not be treated as whitespace tokens, instead forming part of the name. + set_tokenType tablename + set tok "" + if {$had_slash} {append tok "\\"} + append tok $c + } + tablearrayname-state { + set_tokenType tablearrayname + set tok "" + if {$had_slash} {append tok "\\"} + append tok $c + } + multistring-space { + if {$had_slash} { + set_tokenType "continuation" + set tok "\\" + incr i -1 + return 1 + } else { + if {$dquotes ne ""} { + set_tokenType "stringpart" + set tok $dquotes + incr i -1 + return 1 + } + set_tokenType "whitespace" + append tok $c + } + } + multiliteral-space { + set_tokenType "literalpart" + set tok $c + } + default { + if {$had_slash} { + error "tomlish unexpected backslash [tomlish::parse::report_line]" + } + set_tokenType "whitespace" + append tok $c + } + } + } + } + tab { + set dquotes $multi_dquote + set multi_dquote "" ;#!! + + if {[tcl::string::length $tokenType]} { + if {$slash_active} {append tok "\\"} ;#if tokentype not appropriate for \, we would already have errored out (?review) + set slash_active 0 + switch -exact -- $tokenType { + newline { + #incomplete newline + set_tokenType "cr" + incr i -1 + return 1 + } + startquotesequence { + _shortcircuit_startquotesequence + } + _start_squote_sequence { + incr i -[tcl::string::length $tok] + set_tokenType "startsquote" + return 1 + } + barekey { + #whitespace is a terminator for bare keys + incr i -1 + #set_token_waiting type whitespace value $c complete 1 + return 1 + } + untyped_value { + #unquoted values (int,date,float etc) are terminated by whitespace + #set_token_waiting type whitespace value $c complete 1 + incr i -1 + return 1 + } + squotedkey { + append tok $c + } + dquotedkey - string - comment - whitespace { + #REVIEW + append tok $c + } + stringpart { + #for stringpart we store WS separately for ease of processing continuations (CONT stripping) + if {$had_slash} { + #REVIEW + #emit the stringpart - go back to the slash + incr i -2 + return 1 + } else { + #split into STRINGPART aaa WS " " + append tok $dquotes + incr i -1 + return 1 + } + } + literal - literalpart { + append tok $c + } + starttablename - starttablearrayname { + incr i -1 + return 1 + } + tablename - tablearrayname { + #include whitespace in the tablename/tablearrayname + #Will need to be normalized upon interpreting the tomlish as a datastructure + append tok $c + } + default { + error "tomlish Received whitespace tab during tokenType '$tokenType' [tomlish::parse::report_line]" + } + } + } else { + set had_slash $slash_active + if {$slash_active} { + set slash_active 0 + } + switch -exact -- $state { + tablename-state { + #tablename can have leading,trailing and interspersed whitespace! + #These will not be treated as whitespace tokens, instead forming part of the name. + set_tokenType tablename + set tok $c + } + tablearrayname-state { + set_tokenType tablearrayname + set tok $c + } + multistring-space { + if {$had_slash} { + set_tokenType "continuation" + set tok "\\" + incr i -1 + return 1 + } else { + if {$dquotes ne ""} { + set_tokenType stringpart + set tok $dquotes + incr i -1 + return 1 + } else { + set_tokenType whitespace + append tok $c + } + } + } + multiliteral-space { + set_tokenType "literalpart" + set tok $c + } + default { + set_tokenType "whitespace" + append tok $c + } + } + } + } + bom { + #BOM (Byte Order Mark) - ignored by token consumer + if {[tcl::string::length $tokenType]} { + switch -exact -- $tokenType { + _start_squote_sequence { + #assert - tok will be one or two squotes only + incr i -[tcl::string::length $tok] + set_tokenType "startsquote" + return 1 + } + literal - literalpart { + append tok $c + } + default { + set_token_waiting type bom value "\uFEFF" complete 1 startindex $cindex + return 1 + } + } + } else { + switch -exact -- $state { + multiliteral-space { + set_tokenType "literalpart" + set tok $c + } + default { + set_tokenType "bom" + set tok "\uFEFF" + return 1 + } + } + } + } + default { + set dquotes $multi_dquote + set multi_dquote "" ;#!! + + if {[tcl::string::length $tokenType]} { + if {$slash_active} {append tok "\\"} ;#if tokentype not appropriate for \, we would already have errored out. + set slash_active 0 + switch -exact -- $tokenType { + newline { + #incomplete newline + set_tokenType "cr" + incr i -1 + return 1 + } + squote_seq { + incr i -1 + return 1 + } + startquotesequence { + _shortcircuit_startquotesequence + } + _start_squote_sequence { + incr i -[tcl::string::length $tok] + set_tokenType "startsquote" + return 1 + } + whitespace { + if {$state eq "multistring-space"} { + if {$dquotes ne ""} { + set backlen [expr {[tcl::string::length $dquotes] + 1}] + incr i -$backlen + return 1 + } else { + incr i -1 + return 1 + } + } else { + #review + incr i -1 ;#We don't have a full token to add to the token_waiting dict - so leave this char for next run. + return 1 + } + } + barekey { + if {[tomlish::utils::is_barekey $c]} { + append tok $c + } else { + error "tomlish Unexpected character '$c' during bare key. Only \[a-zA-Z0-9_-\] and a selection of letter-like chars allowed. (see tomlish::utils::is_barekey) [tomlish::parse::report_line]" + } + } + starttablename - starttablearrayname { + incr i -1 + #allow statemachine to set context for subsequent chars + return 1 + } + stringpart { + append tok $dquotes$c + } + default { + #e.g comment/string/literal/literalpart/untyped_value/starttablename/starttablearrayname/tablename/tablearrayname + append tok $c + } + } + } else { + set had_slash $slash_active + set slash_active 0 + switch -exact -- $state { + table-space - itable-space { + #if no currently active token - assume another key value pair + if {[tomlish::utils::is_barekey $c]} { + set_tokenType "barekey" + append tok $c + } else { + error "tomlish Unexpected char $c ([tomlish::utils::nonprintable_to_slashu $c]) whilst no active tokenType. [tomlish::parse::report_line]" + } + } + XXXcurly-syntax { + puts stderr "curly-syntax - review" + if {[tomlish::utils::is_barekey $c]} { + set_tokenType "barekey" + append tok $c + } else { + error "tomlish Unexpected char $c ([tomlish::utils::nonprintable_to_slashu $c]) whilst no active tokenType. [tomlish::parse::report_line]" + } + } + multistring-space { + set_tokenType "stringpart" + if {$had_slash} { + #assert - we don't get had_slash and dquotes at same time + set tok \\$c + } else { + set tok $dquotes$c + } + } + multiliteral-space { + set_tokenType "literalpart" + set tok $c + } + tablename-state { + set_tokenType "tablename" + set tok $c + } + tablearrayname-state { + set_tokenType "tablearrayname" + set tok $c + } + dottedkey-space { + set_tokenType barekey + set tok $c + } + default { + #todo - something like ansistring VIEW to show control chars? + set cshow [string map [list \t tab \v vt] $c] + tomlish::log::debug "- tokloop char '$cshow' setting to untyped_value while state:$state [tomlish::parse::report_line]" + set_tokenType "untyped_value" + set tok $c + } + } + } + } + } + + } + + #run out of characters (eof) + if {[tcl::string::length $tokenType]} { + #check for invalid ending tokens + #if {$state eq "err-state"} { + # error "Reached end of data whilst tokenType = '$tokenType'. INVALID" + #} + switch -exact -- $tokenType { + startquotesequence { + set toklen [tcl::string::length $tok] + if {$toklen == 1} { + #invalid + #eof with open string + error "tomlish eof reached without closing quote for string. [tomlish::parse::report_line]" + } elseif {$toklen == 2} { + #valid + #we ended in a double quote, not actually a startquoteseqence - effectively an empty string + switch_tokenType "startquote" + incr i -1 + #set_token_waiting type string value "" complete 1 + return 1 + } + } + _start_squote_sequence { + set toklen [tcl::string::length $tok] + switch -- $toklen { + 1 { + #invalid eof with open literal + error "tomlish eof reached without closing single quote for string literal. [tomlish::parse::report_line]" + } + 2 { + #review + set_token_waiting type endsquote value "'" complete 1 startindex [expr {$cindex -1}] + set_tokenType "literal" + set tok "" + return 1 + } + } + } + newline { + #The only newline token that has still not been returned should have a tok value of "cr" + puts "tomlish eof reached - with incomplete newline token '$tok'" + if {$tok eq "cr"} { + #we convert lone cr to it's own "cr" token elsewhere in the document to allow statemachine to handle it. + #(which it should generally do by not handling it ie raising an error - or emitting an ERROR list in the tomlish) + #if trailing char is a lone cr - we should encode it the same way as elsewhere that is outside of values + # ie as it's own token. + switch_tokenType "cr" + return 1 + } else { + #should be unreachable + error "tomlish eof reached - with invalid newline token. value: $tok" + } + } + } + set_token_waiting type eof value eof complete 1 startindex $i ;#review + return 1 + } else { + ::tomlish::log::debug "- No current tokenType, ran out of characters, setting tokenType to 'eof' [tomlish::parse::report_line]" + set tokenType "eof" + set tok "eof" + } + return 0 + } + + #*** !doctools + #[list_end] [comment {--- end definitions namespace tomlish::parse ---}] +} + +namespace eval tomlish::dict { + namespace export {[a-z]*}; # Convention: export all lowercase + namespace path [namespace parent] + + proc is_tomlish_typeval {d} { + #designed to detect {type value } e.g {type INT value 3}, {type STRING value "blah etc"} + #as a sanity check we need to avoid mistaking user data that happens to match same form + #consider x.y={type="spud",value="blah"} + #The value of type will itself have already been converted to {type STRING value spud} ie never a single element. + #check the length of the type as a quick way to see it's a tag - not something else masqerading. + expr {[dict size $d] == 2 && [dict exists $d type] && [dict exists $d value] && [llength [dict get $d type]] == 1} + } + proc is_tomlish_typeval2 {d} { + upvar ::tomlish::tags tags + expr {[lindex $d 0] eq "type" && [lindex $d 1] in $tags} + } + proc last_tomltype_posn {d} { + set last_simple -1 + set dictposn [expr {[dict size $d] -1}] + foreach k [lreverse [dict keys $d]] { + set dval [dict get $d $k] + if {[is_tomlish_typeval $dval]} { + set last_simple $dictposn + break + } + incr dictposn -1 + } + return $last_simple + } + + + #review + proc name_from_tablestack {tablestack} { + set name "" + foreach tinfo [lrange $tablestack 1 end] { + lassign $tinfo type namepart + switch -- $type { + T { + if {$name eq ""} { + append name $namepart + } else { + append name .$namepart + } + } + I { + if {$name eq ""} { + append name $namepart + } else { + append name .$namepart + } + } + default { + #end at first break in the leading sequence of T & I tablenames + break + } + } + } + return $name + } + +} + +tcl::namespace::eval tomlish::app { + variable applist [list encoder decoder test] + + #*** !doctools + #[subsection {Namespace tomlish::app}] + #[para] + #[list_begin definitions] + + proc decoder {args} { + #*** !doctools + #[call app::[fun decoder] [arg args]] + #[para] read toml on stdin until EOF + #[para] on error - returns non-zero exit code and writes error on stderr + #[para] on success - returns zero exit code and writes JSON encoding of the data on stdout + #[para] This decoder is intended to be compatible with toml-test + + set opts [dict merge [dict create] $args] + #fconfigure stdin -encoding utf-8 + fconfigure stdin -translation binary + #Just slurp it all - presumably we are not handling massive amounts of data on stdin. + # - even if the input is large, we probably don't gain much (aside from possible memory savings?) by attempting to process input as it arrives. + if {[catch { + set toml [read stdin] + }]} { + exit 2 ;#read error + } + try { + set j [::tomlish::toml_to_json $toml] + } on error {em} { + puts stderr "decoding failed: '$em'" + exit 1 + } + puts -nonewline stdout $j + exit 0 + } + + proc encoder {args} { + #*** !doctools + #[call app::[fun encoder] [arg args]] + #[para] read JSON on stdin until EOF + #[para] return non-zero exitcode if JSON data cannot be converted to a valid TOML representation + #[para] return zero exitcode and TOML data on stdout if JSON data can be converted. + #[para] This encoder is intended to be compatible with toml-test + + set opts [dict merge [dict create] $args] + fconfigure stdin -translation binary + if {[catch { + set json [read stdin] + }]} { + exit 2 ;#read error + } + try { + set toml [::tomlish::json_to_toml $json] + } on error {em} { + puts stderr "encoding failed: '$em'" + exit 1 + } + puts -nonewline stdout $toml + exit 0 + } + + proc test {args} { + set opts [dict merge [dict create] $args] + + package require test::tomlish + if {[dict exists $opts -suite]} { + test::tomlish::suite [dict get $opts -suite] + } + test::tomlish::run + } + + + #*** !doctools + #[list_end] [comment {--- end definitions namespace tomlish::app ---}] +} + +proc ::tomlish::appnames {} { + set applist [list] + foreach cmd [info commands ::tomlish::app::*] { + lappend applist [namespace tail $cmd] + } + return $applist +} + + +# ++ +++ +++ +++ +++ +++ +++ +++ +++ +++ +++ +# Secondary API namespace +# ++ +++ +++ +++ +++ +++ +++ +++ +++ +++ +++ +namespace eval tomlish::lib { + namespace export {[a-z]*}; # Convention: export all lowercase + namespace path [namespace parent] + #*** !doctools + #[subsection {Namespace tomlish::lib}] + #[para] Secondary functions that are part of the API + #[list_begin definitions] + + #proc utility1 {p1 args} { + # #*** !doctools + # #[call lib::[fun utility1] [arg p1] [opt {?option value...?}]] + # #[para]Description of utility1 + # return 1 + #} + + + + #*** !doctools + #[list_end] [comment {--- end definitions namespace tomlish::lib ---}] +} +# ++ +++ +++ +++ +++ +++ +++ +++ +++ +++ +++ + +if {$argc > 0} { + puts stderr "argc: $argc args: $argv" + + if {($argc == 1)} { + if {[tcl::string::tolower $argv] in {help -help h -h}} { + puts stdout "Usage: -app where appname one of:[tomlish::appnames]" + exit 0 + } else { + puts stderr "Argument '$argv' not understood. Try -help" + exit 1 + } + } + set opts [dict create] + set opts [dict merge $opts $argv] + + set opts_understood [list -app ] + if {"-app" in [dict keys $opts]} { + #Don't vet the remaining opts - as they are interpreted by each app + } else { + foreach key [dict keys $opts] { + if {$key ni $opts_understood} { + puts stderr "Option '$key' not understood" + exit 1 + } + } + } + if {[dict exists $opts -app]} { + set app [dict get $opts -app] + if {$app ni [tomlish::appnames]} { + puts stderr "app '[dict get $opts -app]' not found" + exit 1 + } + tomlish::app::$app {*}$opts + } +} + +## Ready +package provide tomlish [namespace eval tomlish { + variable pkg tomlish + variable version + set version 1.1.4 +}] +return + +#*** !doctools +#[manpage_end] + diff --git a/src/project_layouts/custom/_project/punk.project-0.1/src/bootsupport/modules/test/tomlish-1.1.3.tm b/src/project_layouts/custom/_project/punk.project-0.1/src/bootsupport/modules/test/tomlish-1.1.3.tm index 08ec371d..ed5044a7 100644 Binary files a/src/project_layouts/custom/_project/punk.project-0.1/src/bootsupport/modules/test/tomlish-1.1.3.tm and b/src/project_layouts/custom/_project/punk.project-0.1/src/bootsupport/modules/test/tomlish-1.1.3.tm differ diff --git a/src/project_layouts/custom/_project/punk.project-0.1/src/bootsupport/modules/tomlish-1.1.4.tm b/src/project_layouts/custom/_project/punk.project-0.1/src/bootsupport/modules/tomlish-1.1.4.tm new file mode 100644 index 00000000..7a6d5205 --- /dev/null +++ b/src/project_layouts/custom/_project/punk.project-0.1/src/bootsupport/modules/tomlish-1.1.4.tm @@ -0,0 +1,6172 @@ +# -*- tcl -*- +# Maintenance Instruction: leave the 999999.xxx.x as is and use 'pmix make' or src/make.tcl to update from -buildversion.txt +# +# Please consider using a BSD or MIT style license for greatest compatibility with the Tcl ecosystem. +# Code using preferred Tcl licenses can be eligible for inclusion in Tcllib, Tklib and the punk package repository. +# ++ +++ +++ +++ +++ +++ +++ +++ +++ +++ +++ +# (C) 2024 +# +# @@ Meta Begin +# Application tomlish 1.1.4 +# Meta platform tcl +# Meta license +# @@ Meta End + + +# ++ +++ +++ +++ +++ +++ +++ +++ +++ +++ +++ +# doctools header +# ++ +++ +++ +++ +++ +++ +++ +++ +++ +++ +++ +#*** !doctools +#[manpage_begin tomlish_module_tomlish 0 1.1.4] +#[copyright "2024"] +#[titledesc {tomlish toml parser}] [comment {-- Name section and table of contents description --}] +#[moddesc {tomlish}] [comment {-- Description at end of page heading --}] +#[require tomlish] +#[keywords module parsing toml configuration] +#[description] +#[para] tomlish is an intermediate representation of toml data in a tree structure (tagged lists representing type information) +#[para] The design goals are for tomlish to be whitespace and comment preserving ie byte-for byte preservation during roundtrips from toml to tomlish and back to toml +#[para] The tomlish representation can then be converted to a Tcl dict structure or to other formats such as json, +#[para] although these other formats are generally unlikely to retain whitespace or comments +#[para] The other formats also won't preserve roundtripability e.g \t and a literal tab coming from a toml file will be indistinguishable. +#[para] A further goal is to allow at least a useful subset of in-place editing operations which also preserve whitespace and comments. +#[para] e.g leaf key value editing, and table reordering/sorting, key-renaming at any level, key insertions/deletions +#[para] The API for editing (tomldoc object?) may require explicit setting of type if accessing an existing key +#[para] e.g setting a key that already exists and is a different type (especially if nested structure such as a table or array) +#[para] will need a -type option (-force ?) to force overriding with another type such as an int. + +# ++ +++ +++ +++ +++ +++ +++ +++ +++ +++ +++ + +#*** !doctools +#[section Overview] +#[para] overview of tomlish +#[subsection Concepts] +#[para] - + + +# ++ +++ +++ +++ +++ +++ +++ +++ +++ +++ +++ +## Requirements +# ++ +++ +++ +++ +++ +++ +++ +++ +++ +++ +++ + +#*** !doctools +#[subsection dependencies] +#[para] packages used by tomlish +#[list_begin itemized] + +package require Tcl 8.6- +package require struct::stack +package require logger + +#*** !doctools +#[item] [package {Tcl 8.6-}] +#[item] [package {struct::stack}] + +#limit ourselves to clear, destroy, peek, pop, push, rotate, or size (e.g v 1.3 does not implement 'get') + + +#*** !doctools +#[list_end] + +# ++ +++ +++ +++ +++ +++ +++ +++ +++ +++ +++ + +#*** !doctools +#[section API] + +# ++ +++ +++ +++ +++ +++ +++ +++ +++ +++ +++ + +# ++ +++ +++ +++ +++ +++ +++ +++ +++ +++ +++ +# Base namespace +# ++ +++ +++ +++ +++ +++ +++ +++ +++ +++ +++ +namespace eval tomlish { + namespace export {[a-z]*}; # Convention: export all lowercase + variable types + + #IDEAS: + # since get_toml produces tomlish with whitespace/comments intact: + # tomldoc object - allow (at least basic?) editing of toml whilst preserving comments & whitespace + # - setKey (set leaf only to value) how to specify type? -type option? - whole array vs index into arrays and further nested objects? - option for raw toml additions? + # - separate addKey?? + # - deleteKey (delete leaf) + # - deleteTable (delete table - if only has leaves? - option to delete with child tables?) + # - set/add Table? - position in doc based on existing tables/subtables? + + #The tomlish intermediate representation allows things such as sorting the toml document by table name or other re-ordering of tables - + # because the tables include subkeys, comments and newlines within their structure - those elements all come along with it nicely during reordering. + #The same goes for the first newline following a keyval e.g x=1 \ny=2\n\n + #The newline is part of the keyval structure so makes reordering easier + #example from_toml "a=1\nb=2\n\n\n" + # 0 = TOMLISH + # 1 = KEY a = {INT 1} {NEWLINE lf} + # 2 = NEWLINE lf + # 3 = KEY b = {INT 2} {NEWLINE lf} + # 4 = NEWLINE lf + # 5 = NEWLINE lf + + + #ARRAY is analogous to a Tcl list + #TABLE is analogous to a Tcl dict + #WS = inline whitespace + #KEY = bare key and value + #DQKEY = double quoted key and value + #SQKEY = single quoted key and value + #ITABLE = inline table (*can* be anonymous table) + # inline table values immediately create a table with the opening brace + # inline tables are fully defined between their braces, as are dotted-key subtables defined within + # No additional subtables or arrays of tables may be defined within an inline table after the ending brace - they must be entirely self-contained + + set tags [list TOMLISH ARRAY TABLE ITABLE TABLEARRAY WS NEWLINE COMMENT DOTTEDKEY KEY DQKEY SQKEY STRING STRINGPART MULTISTRING LITERAL LITERALPART MULTILITERAL INT FLOAT BOOL DATETIME] + #removed - ANONTABLE + #tomlish v1.0 should accept arbitrary 64-bit signed ints (from -2^63 to 2^63-1) + #we will restrict to this range for compatibility for now - although Tcl can handle larger (arbitrarily so?) + set min_int -9223372036854775808 ;#-2^63 + set max_int +9223372036854775807 ;#2^63-1 + + proc Dolog {lvl txt} { + #return "$lvl -- $txt" + set msg "[clock format [clock seconds] -format "%Y-%m-%dT%H:%M:%S"] tomlish '$txt'" + puts stderr $msg + } + logger::initNamespace ::tomlish + foreach lvl [logger::levels] { + interp alias {} tomlish_log_$lvl {} ::tomlish::Dolog $lvl + log::logproc $lvl tomlish_log_$lvl + } + + #*** !doctools + #[subsection {Namespace tomlish}] + #[para] Core API functions for tomlish + #[list_begin definitions] + + proc tags {} { + return $::tomlish::tags + } + + #helper function for to_dict + proc _get_keyval_value {keyval_element} { + log::notice ">>> _get_keyval_value from '$keyval_element'<<<" + set found_value 0 + #find the value + # 3 is the earliest index at which the value could occur (depending on whitespace) + set found_sub [list] + if {[lindex $keyval_element 2] ne "="} { + error "tomlish _get_keyval_value keyval_element doesn't seem to be a properly structured { = } list" + } + + #review + if {[uplevel 1 [list info exists tablenames_seen]]} { + upvar tablenames_seen tablenames_seen + } else { + set tablenames_seen [list] ;#list of lists + } + if {[uplevel 1 [list info exists tablenames_closed]]} { + upvar tablenames_closed tablenames_closed + } else { + set tablenames_closed [list] ;#list of lists + } + + foreach sub [lrange $keyval_element 2 end] { + #note that a barekey/dquotedkey won't occur directly inside a barekey/dquotedkey + switch -exact -- [lindex $sub 0] { + STRING - LITERAL - MULTISTRING - MULTILITERAL - INT - FLOAT - BOOL - DATETIME - TABLE - ARRAY - ITABLE { + set type [lindex $sub 0] + set value [lindex $sub 1] + set found_sub $sub + incr found_value 1 + } + default {} + } + } + if {!$found_value} { + error "tomlish Failed to find value element in KEY. '$keyval_element'" + } + if {$found_value > 1} { + error "tomlish Found multiple value elements in KEY, expected exactly one. '$keyval_element'" + } + + switch -exact -- $type { + INT - FLOAT - BOOL - DATETIME { + #simple (non-container, no-substitution) datatype + set result [list type $type value $value] + } + STRING - STRINGPART { + set result [list type $type value [::tomlish::utils::unescape_string $value]] + } + LITERAL - LITERALPART { + #REVIEW + set result [list type $type value $value] + } + TABLE { + #invalid? + error "tomlish _get_keyval_value invalid to have type TABLE on rhs of =" + } + ITABLE { + #This one should not be returned as a type value structure! + # + set result [::tomlish::to_dict [list $found_sub]] + } + ARRAY { + #we need to recurse to get the corresponding dict for the contained item(s) + #pass in the whole $found_sub - not just the $value! + set prev_tablenames_seen $tablenames_seen + set prev_tablenames_closed $tablenames_closed + set tablenames_seen [list] + set tablenames_closed [list] + set result [list type $type value [::tomlish::to_dict [list $found_sub]]] + set tablenames_seen $prev_tablenames_seen + set tablenames_closed $prev_tablenames_closed + } + MULTISTRING - MULTILITERAL { + #review - mapping these to STRING might make some conversions harder? + #if we keep the MULTI - we know we have to look for newlines for example when converting to json + #without specific types we'd have to check every STRING - and lose info about how best to map chars within it + set result [list type $type value [::tomlish::to_dict [list $found_sub]]] + } + default { + error "tomlish Unexpected value type '$type' found in keyval '$keyval_element'" + } + } + return $result + } + + proc _get_dottedkey_info {dottedkeyrecord} { + set key_hierarchy [list] + set key_hierarchy_raw [list] + if {[lindex $dottedkeyrecord 0] ne "DOTTEDKEY"} { + error "tomlish _get_dottedkey_info error. Supplied list doesn't appear to be a DOTTEDKEY (tag: [lindex $dottedkeyrecord 0])" + } + set compoundkeylist [lindex $dottedkeyrecord 1] + set expect_sep 0 + foreach part $compoundkeylist { + set parttag [lindex $part 0] + if {$parttag eq "WS"} { + continue + } + if {$expect_sep} { + if {$parttag ne "DOTSEP"} { + error "DOTTEDKEY missing dot separator between parts. '$dottedkeyrecord'" + } + set expect_sep 0 + } else { + set val [lindex $part 1] + switch -exact -- $parttag { + KEY { + lappend key_hierarchy $val + lappend key_hierarchy_raw $val + } + DQKEY { + lappend key_hierarchy [::tomlish::utils::unescape_string $val] + lappend key_hierarchy_raw \"$val\" + } + SQKEY { + lappend key_hierarchy $val + lappend key_hierarchy_raw "'$val'" + } + default { + error "DOTTED key unexpected part '$parttag' - ensure dot separator is between key parts. '$item'" + } + } + set expect_sep 1 + } + } + return [dict create keys $key_hierarchy keys_raw $key_hierarchy_raw] + } + + + + #to_dict is a *basic* programmatic datastructure for accessing the data. + # produce a dictionary of keys and values from a tomlish tagged list. + # to_dict is primarily for reading toml data. + #Extraneous (not within quoted sections) whitespace and comments are not preserved in this structure, + # so a roundtrip from toml to this datastructure and back to toml will lose whitespace formatting and comments. + # creating/changing toml values can be done directly on a tomlish list if preserving (or adding) formatting/comments is desired. + #A separate package 'tomlish::object' may be needed to allow easier programmatic creating/updating/deleting of data elements whilst preserving (or adding or selectively deleting/editing) such formatting. + # + + #within an ARRAY, we store a list of items such as plain dicts (possibly empty) and {type value } for simple types + #(ARRAYS can be mixed type) + #This means our dict structure should have only ARRAY and simple types which need to be in {type value } form + #A dict within an array encodeded as a type ITABLE value should also parse - but is the unpreferred form - REVIEW test? + + #Namespacing? + #ie note the difference: + #[Data] + #temp = { cpu = 79.5, case = 72.0} + # versus + #[Data] + #temps = [{cpu = 79.5, case = 72.0}] + proc to_dict {tomlish} { + + #keep track of which tablenames have already been directly defined, + # so we can raise an error to satisfy the toml rule: 'You cannot define any key or table more than once. Doing so is invalid' + #Note that [a] and then [a.b] is ok if there are no subkey conflicts - so we are only tracking complete tablenames here. + #we don't error out just because a previous tablename segment has already appeared. + ##variable tablenames_seen [list] + if {[uplevel 1 [list info exists tablenames_seen]]} { + upvar tablenames_seen tablenames_seen + } else { + set tablenames_seen [list] ;#list of lists + } + if {[uplevel 1 [list info exists tablenames_closed]]} { + upvar tablenames_closed tablenames_closed + } else { + set tablenames_closed [list] ;#list of lists + } + + log::info "---> to_dict processing '$tomlish'<<<" + set items $tomlish + + foreach lst $items { + if {[lindex $lst 0] ni $::tomlish::tags} { + error "supplied string does not appear to be toml parsed into a tomlish tagged list. Run tomlish::decode::toml on the raw toml data to produce a tomlish list" + } + } + + if {[lindex $tomlish 0] eq "TOMLISH"} { + #ignore TOMLISH tag at beginning + set items [lrange $tomlish 1 end] + } + + set datastructure [dict create] + foreach item $items { + set tag [lindex $item 0] + #puts "...> item:'$item' tag:'$tag'" + switch -exact -- $tag { + KEY - DQKEY - SQKEY { + log::debug "---> to_dict item: processing $tag: $item" + set key [lindex $item 1] + if {$tag eq "DQKEY"} { + set key [::tomlish::utils::unescape_string $key] + } + #!todo - normalize key. (may be quoted/doublequoted) + + if {[dict exists $datastructure $key]} { + error "Duplicate key '$key'. The key already exists at this level in the toml data. The toml data is not valid." + } + + #lassign [_get_keyval_value $item] type val + set keyval_dict [_get_keyval_value $item] + dict set datastructure $key $keyval_dict + } + DOTTEDKEY { + log::debug "---> to_dict item processing $tag: $item" + set dkey_info [_get_dottedkey_info $item] + set dotted_key_hierarchy [dict get $dkey_info keys] + + #a.b.c = 1 + #table_key_hierarchy -> a b + #leafkey -> c + if {[llength $dotted_key_hierarchy] == 0} { + #empty?? probably invalid. review + #This is different to '' = 1 or ''.'' = 1 which have lengths 1 and 2 respectively + error "DOTTED key has no parts - invalid? '$item'" + } elseif {[llength $dotted_key_hierarchy] == 1} { + #dottedkey is only a key - no table component + set table_hierarchy [list] + set leafkey [lindex $dotted_key_hierarchy 0] + } else { + set table_hierarchy [lrange $dotted_key_hierarchy 0 end-1] + set leafkey [lindex $dotted_key_hierarchy end] + } + + #ensure empty tables are still represented in the datastructure + #review - this seems unnecessary? + set pathkeys [list] + foreach k $table_hierarchy { + lappend pathkeys $k + if {![dict exists $datastructure {*}$pathkeys]} { + dict set datastructure {*}$pathkeys [list] + } else { + tomlish::log::notice "to_dict datastructure at key path $pathkeys already had data: [dict get $datastructure {*}$pathkeys]" + } + } + #review? + if {[dict exists $datastructure {*}$table_hierarchy $leafkey]} { + error "Duplicate key '$table_hierarchy $leafkey'. The key already exists at this level in the toml data. The toml data is not valid." + } + + #JMN test 2025 + if {[llength $table_hierarchy]} { + lappend tablenames_seen $table_hierarchy + } + + set keyval_dict [_get_keyval_value $item] + if {![tomlish::dict::is_tomlish_typeval $keyval_dict]} { + lappend tablenames_seen [list {*}$table_hierarchy $leafkey] + lappend tablenames_closed [list {*}$table_hierarchy $leafkey] + + #review - item is an ITABLE - we recurse here without datastructure context :/ + #overwriting keys? todo ? + dict set datastructure {*}$table_hierarchy $leafkey $keyval_dict + } else { + dict set datastructure {*}$table_hierarchy $leafkey $keyval_dict + } + + } + TABLE { + set tablename [lindex $item 1] + #set tablename [::tomlish::utils::tablename_trim $tablename] + set norm_segments [::tomlish::utils::tablename_split $tablename true] ;#true to normalize + if {$norm_segments in $tablenames_seen} { + error "Table name '$tablename' has already been directly defined in the toml data. Invalid." + } + + log::debug "---> to_dict processing item $tag (name: $tablename): $item" + set name_segments [::tomlish::utils::tablename_split $tablename] ;#unnormalized + set last_seg "" + #toml spec rule - all segments mst be non-empty + #note that the results of tablename_split are 'raw' - ie some segments may be enclosed in single or double quotes. + + set table_key_sublist [list] + + foreach normseg $norm_segments { + lappend table_key_sublist $normseg + if {[dict exists $datastructure {*}$table_key_sublist]} { + #It's ok for this key to already exist *if* it was defined by a previous tablename or equivalent + #and if this key is longer + + #consider the following 2 which are legal: + #[table] + #x.y = 3 + #[table.x.z] + #k= 22 + + #equivalent + + #[table] + #[table.x] + #y = 3 + #[table.x.z] + #k=22 + + #illegal + #[table] + #x.y = 3 + #[table.x.y.z] + #k = 22 + ## - we should fail on encountering table.x.y because only table and table.x are effectively tables + + #illegal + #[table] + #x.y = {p=3} + #[table.x.y.z] + #k = 22 + ## we should fail because y is an inline table which is closed to further entries + + + #note: it is not safe to compare normalized tablenames using join! + # e.g a.'b.c'.d is not the same as a.b.c.d + # instead compare {a b.c d} with {a b c d} + # Here is an example where the number of keys is the same, but they must be compared as a list, not a joined string. + #'a.b'.'c.d.e' vs 'a.b.c'.'d.e' + #we need to normalize the tablenames seen so that {"x\ty"} matches {"xy"} + + set sublist_length [llength $table_key_sublist] + set found_testkey 0 + if {$table_key_sublist in $tablenames_seen} { + set found_testkey 1 + } else { + #see if it was defined by a longer entry + foreach seen_table_segments $tablenames_seen { + if {[llength $seen_table_segments] <= $sublist_length} { + continue + } + #each tablenames_seen entry is already a list of normalized segments + + #we could have [a.b.c.d] early on + # followed by [a.b] - which was still defined by the earlier one. + + set seen_longer [lrange $seen_segments 0 [expr {$sublist_length -1}]] + puts stderr "testkey:'$table_key_sublist' vs seen_match:'$seen_longer'" + if {$table_key_sublist eq $seen_longer} { + set found_testkey 1 + } + } + } + + if {$found_testkey == 0} { + #the raw unnormalized tablename might be ok to display in the error message, although it's not the actual dict keyset + set msg "key $table_key_sublist already exists in datastructure, but wasn't defined by a supertable." + append msg \n "tablenames_seen:" \n + foreach ts $tablenames_seen { + append msg " " $ts \n + } + error $msg + } + } + + } + + #ensure empty tables are still represented in the datastructure + set key_sublist [list] + foreach k $norm_segments { + lappend key_sublist $k + if {![dict exists $datastructure {*}$key_sublist]} { + dict set datastructure {*}$key_sublist [list] + } else { + tomlish::log::notice "to_dict datastructure at (TABLE) subkey $key_sublist already had data: [dict get $datastructure {*}$key_sublist]" + } + } + + #We must do this after the key-collision test above! + lappend tablenames_seen $norm_segments + + + log::debug ">>> to_dict >>>>>>>>>>>>>>>>> normalized table key hierarchy : $norm_segments" + + #now add the contained elements + foreach element [lrange $item 2 end] { + set type [lindex $element 0] + log::debug "----> tododict processing $tag subitem $type processing contained element $element" + switch -exact -- $type { + DOTTEDKEY { + set dkey_info [_get_dottedkey_info $element] + #e.g1 keys {x.y y} keys_raw {'x.y' "a\tb"} keys {x.y {a b}} (keys_raw has escape, keys has literal tab char) + #e.g2 keys {x.y y} keys_raw {{"x.y"} "a\tb"} keys {x.y {a b}} (keys_raw has escape, keys has literal tab char) + set dotted_key_hierarchy [dict get $dkey_info keys] + set dkeys [lrange $dotted_key_hierarchy 0 end-1] + set leaf_key [lindex $dotted_key_hierarchy end] + + #ensure empty keys are still represented in the datastructure + set test_keys $norm_segments + foreach k $dkeys { + lappend test_keys $k + if {![dict exists $datastructure {*}$test_keys]} { + dict set datastructure {*}$test_keys [list] + } else { + tomlish::log::notice "to_dict datastructure at (DOTTEDKEY) subkey $test_keys already had data: [dict get $datastructure {*}$test_keys]" + } + } + + if {[dict exists $datastructure {*}$norm_segments {*}$dkeys $leaf_key]} { + error "Duplicate key '$norm_segments $dkeys $leaf_key'. The key already exists at this level in the toml data. The toml data is not valid." + } + set keyval_dict [_get_keyval_value $element] + #keyval_dict is either a {type value } + #or the result from parsing an arbitrary dict from an inline table - which could theoretically look the same at the topmost level + #punk::dict::is_tomlish_typeval can distinguish + puts stdout "to_dict>>> $keyval_dict" + dict set datastructure {*}$norm_segments {*}$dkeys $leaf_key $keyval_dict + #JMN 2025 + lappend tablenames_seen [list {*}$norm_segments {*}$dkeys] + + if {![tomlish::dict::is_tomlish_typeval $keyval_dict]} { + #the value is either empty or or a dict structure with arbitrary (from-user-data) toplevel keys + # inner structure will contain {type value } if all leaves are not empty ITABLES + lappend tablenames_seen [list {*}$norm_segments {*}$dkeys $leaf_key] + #if the keyval_dict is not a simple type x value y - then it's an inline table ? + #if so - we should add the path to the leaf_key as a closed table too - as it's not allowed to have more entries added. + } + + } + NEWLINE - COMMENT - WS { + #ignore + } + default { + error "Sub element of type '$type' not understood in table context. Expected only KEY,DQKEY,SQKEY,NEWLINE,COMMENT,WS" + } + } + } + #now make sure we add an empty value if there were no contained elements! + #!todo. + } + ITABLE { + #SEP??? + set datastructure [list] + foreach element [lrange $item 1 end] { + set type [lindex $element 0] + log::debug "----> tododict processing $tag subitem $type processing contained element $element" + switch -exact -- $type { + DOTTEDKEY { + set dkey_info [_get_dottedkey_info $element] + set dotted_key_hierarchy [dict get $dkey_info keys] + set leaf_key [lindex $dotted_key_hierarchy end] + set dkeys [lrange $dotted_key_hierarchy 0 end-1] + + #ensure empty keys are still represented in the datastructure + set table_keys [list] ;#We don't know the context - next level up will have to check for key collisions? + set test_keys $table_keys + foreach k $dkeys { + lappend test_keys $k + if {![dict exists $datastructure {*}$test_keys]} { + dict set datastructure {*}$test_keys [list] + } else { + tomlish::log::notice "to_dict datastructure at (DOTTEDKEY) subkey $test_keys already had data: [dict get $datastructure {*}$test_keys]" + } + } + + if {[dict exists $datastructure {*}$table_keys {*}$dkeys $leaf_key]} { + error "Duplicate key '$table_keys $dkeys $leaf_key'. The key already exists at this level in the toml data. The toml data is not valid." + } + set keyval_dict [_get_keyval_value $element] + dict set datastructure {*}$table_keys {*}$dkeys $leaf_key $keyval_dict + } + NEWLINE - COMMENT - WS { + #ignore + } + default { + error "Sub element of type '$type' not understood in ITABLE context. Expected only KEY,DQKEY,SQKEY,NEWLINE,COMMENT,WS" + } + } + } + } + ARRAY { + #arrays in toml are allowed to contain mixtures of types + set datastructure [list] + log::debug "--> processing array: $item" + + foreach element [lrange $item 1 end] { + set type [lindex $element 0] + log::debug "----> tododict processing $tag subitem $type processing contained element $element" + switch -exact -- $type { + INT - FLOAT - BOOL - DATETIME { + set value [lindex $element 1] + lappend datastructure [list type $type value $value] + } + STRING { + set value [lindex $element 1] + lappend datastructure [list type $type value [::tomlish::utils::unescape_string $value]] + } + LITERAL { + set value [lindex $element 1] + lappend datastructure [list type $type value $value] + } + ITABLE { + #anonymous table + #lappend datastructure [list type $type value [::tomlish::to_dict [list $element]]] + lappend datastructure [::tomlish::to_dict [list $element]] ;#store itables within arrays as raw dicts (possibly empty) + } + TABLE { + #invalid? shouldn't be output from from_dict - but could manually be constructed as such? review + #doesn't make sense as table needs a name? + #take as synonym for ITABLE? + error "to_dict TABLE within array unexpected" + } + ARRAY - MULTISTRING - MULTILITERAL { + #set value [lindex $element 1] + lappend datastructure [list type $type value [::tomlish::to_dict [list $element]]] + } + WS - SEP - NEWLINE - COMMENT { + #ignore whitespace, commas, newlines and comments + } + default { + error "Unexpected value type '$type' found in array" + } + } + } + } + MULTILITERAL { + #triple squoted string + #first newline stripped only if it is the very first element + #(ie *immediately* following the opening delims) + #All whitespace other than newlines is within LITERALPARTS + # ------------------------------------------------------------------------- + #todo - consider extension to toml to allow indent-aware multiline literals + # how - propose as issue in toml github? Use different delim? e.g ^^^ ? + #e.g + # xxx=?'''abc + # def + # etc + # ''' + # - we would like to trimleft each line to the column following the opening delim + # ------------------------------------------------------------------------- + + log::debug "---> todict processing multiliteral: $item" + set parts [lrange $item 1 end] + if {[lindex $parts 0 0] eq "NEWLINE"} { + set parts [lrange $parts 1 end] ;#skip it + } + for {set idx 0} {$idx < [llength $parts]} {incr idx} { + set element [lindex $parts $idx] + set type [lindex $element 0] + switch -exact -- $type { + LITERALPART { + append stringvalue [lindex $element 1] + } + NEWLINE { + set val [lindex $element 1] + if {$val eq "nl"} { + append stringvalue \n + } else { + append stringvalue \r\n + } + } + default { + error "Unexpected value type '$type' found in multistring" + } + } + } + set datastructure $stringvalue + } + MULTISTRING { + #triple dquoted string + log::debug "---> to_dict processing multistring: $item" + set stringvalue "" + set idx 0 + set parts [lrange $item 1 end] + for {set idx 0} {$idx < [llength $parts]} {incr idx} { + set element [lindex $parts $idx] + set type [lindex $element 0] + #We use STRINGPART in the tomlish representation as a distinct element to STRING - which would imply wrapping quotes to be reinserted + switch -exact -- $type { + STRING { + #todo - do away with STRING ? + #we don't build MULTISTRINGS containing STRING - but should we accept it? + tomlish::log::warn "double quoting a STRING found in MULTISTRING - should be STRINGPART?" + append stringvalue "\"[::tomlish::utils::unescape_string [lindex $element 1]]\"" + } + STRINGPART { + append stringvalue [::tomlish::utils::unescape_string [lindex $element 1]] + } + CONT { + #When the last non-whitespace character on a line is an unescaped backslash, + #it will be trimmed along with all whitespace (including newlines) up to the next non-whitespace character or closing delimiter + # review - we allow some whitespace in stringpart elements - can a stringpart ever be all whitespace? + set next_nl [lsearch -index 0 -start $idx+1 $parts NEWLINE] + if {$next_nl == -1} { + #last line + set non_ws [lsearch -index 0 -start $idx+1 -not $parts WS] + if {$non_ws >= 0} { + append stringvalue "\\" ;#add the sep + } else { + #skip over ws without emitting + set idx [llength $parts] + } + } else { + set parts_til_nl [lrange $parts 0 $next_nl-1] + set non_ws [lsearch -index 0 -start $idx+1 -not $parts_til_nl WS] + if {$non_ws >= 0} { + append stringvalue "\\" + } else { + #skip over ws on this line + set idx $next_nl + #then have to check each subsequent line until we get to first non-whitespace + set trimming 1 + while {$trimming && $idx < [llength $parts]} { + set next_nl [lsearch -index 0 -start $idx+1 $parts NEWLINE] + if {$next_nl == -1} { + #last line + set non_ws [lsearch -index 0 -start $idx+1 -not $parts WS] + if {$non_ws >= 0} { + set idx [expr {$non_ws -1}] + } else { + set idx [llength $parts] + } + set trimming 0 + } else { + set non_ws [lsearch -index 0 -start $idx+1 -not [lrange $parts 0 $next_nl-1] WS] + if {$non_ws >= 0} { + set idx [expr {$non_ws -1}] + set trimming 0 + } else { + set idx $next_nl + #keep trimming + } + } + } + } + } + } + NEWLINE { + #if newline is first element - it is not part of the data of a multistring + if {$idx > 0} { + set val [lindex $element 1] + if {$val eq "nl"} { + append stringvalue \n + } else { + append stringvalue \r\n + } + } + } + WS { + append stringvalue [lindex $element 1] + } + default { + error "Unexpected value type '$type' found in multistring" + } + } + } + set datastructure $stringvalue + } + WS - COMMENT - NEWLINE { + #ignore + } + default { + error "Unexpected tag '$tag' in Tomlish list '$tomlish'" + } + } + } + return $datastructure + } + + + proc _from_dictval_tomltype {parents tablestack keys typeval} { + set type [dict get $typeval type] + set val [dict get $typeval value] + switch -- $type { + ARRAY { + set subitems [list] + foreach item $val { + lappend subitems [_from_dictval [list {*}$parents ARRAY] $tablestack $keys $item] SEP + } + if {[lindex $subitems end] eq "SEP"} { + set subitems [lrange $subitems 0 end-1] + } + return [list ARRAY {*}$subitems] + } + ITABLE { + if {$val eq ""} { + return ITABLE + } else { + return [_from_dictval [list {*}$parents ITABLE] $tablestack $keys $val] + } + } + MULTISTRING { + #value is a raw string that isn't encoded as tomlish + #create a valid toml snippet with the raw value and decode it to the proper tomlish MULTISTRING format + #We need to convert controls in $val to escape sequences - except for newlines + # + #consider an *option* to reformat for long lines? (perhaps overcomplex - byte equiv - but may fold in ugly places) + #we could use a line-length limit to decide when to put in a "line ending backslash" + #and even format it with a reasonable indent so that proper CONT and WS entries are made (?) REVIEW + # + #TODO + set tomlpart "x=\"\"\"\\\n" + append tomlpart $val "\"\"\"" + set tomlish [tomlish::decode::toml $tomlpart] + #e.g if val = " etc\nblah" + #TOMLISH {DOTTEDKEY {{KEY x}} = {MULTISTRING CONT {NEWLINE LF} {WS { }} {STRINGPART etc} {NEWLINE lf} {STRINGPART blah} } } + #lindex 1 3 is the MULTISTRING tomlish list + return [lindex $tomlish 1 3] + } + MULTILITERAL { + #MLL string can contain newlines - but still no control chars + #todo - validate + set tomlpart "x='''\n" + append tomlpart $val ''' + set tomlish [tomlish::decode::toml $tomlpart] + return [lindex $tomlish 1 3] + } + LITERAL { + #from v1.0 spec - "Control characters other than tab are not permitted in a literal string" + #(This rules out raw ANSI SGR - which is somewhat restrictive - but perhaps justified for a config format + # as copy-pasting ansi to a config value is probably not always wise, and it's not something that can be + # easily input via a text editor. ANSI can go in Basic strings using the \e escape if that's accepted v1.1?) + #we could choose to change the type to another format here when encountering invalid chars - but that seems + #like too much magic. We elect to error out and require the dict to have valid data for the types it specifies. + if {[string first ' $val] >=0} { + error "_from_dictval_tomltype error: single quote found in LITERAL - cannot encode dict to TOML-VALID TOMLISH" + } + #detect control chars other than tab + #for this we can use rawstring_to_Bstring_with_escaped_controls - even though this isn't a Bstring + #we are just using the map to detect a difference. + set testval [tomlish::utils::rawstring_to_Bstring_with_escaped_controls $val] + if {$testval ne $val} { + #some escaping would have to be done if this value was destined for a Bstring... + #therefor this string has controls and isn't suitable for a LITERAL according to the specs. + error "_from_dictval_tomltype error: control chars (other than tab) found in LITERAL value - cannot encode dict to TOML-VALID TOMLISH" + } + return [list LITERAL $val] + } + STRING { + return [list STRING [tomlish::utils::rawstring_to_Bstring_with_escaped_controls $val]] + } + INT { + if {![::tomlish::utils::is_int $val]} { + error "_from_dictval_tomltype error: bad INT value '$val' - cannot encode dict to TOML-VALID TOMLISH" + } + return [list INT $val] + } + FLOAT { + if {![::tomlish::utils::is_float $val]} { + error "_from_dictval_tomltype error: bad FLOAT value '$val' - cannot encode dict to TOML-VALID TOMLISH" + } + return [list FLOAT $val] + } + default { + if {$type ni [::tomlish::tags]} { + error "_from_dictval_tomltype error: Unrecognised typename '$type' in {type value } - cannot encode dict to TOML-VALID TOMLISH" + } + return [list $type $val] + } + } + } + + proc _from_dictval {parents tablestack keys vinfo} { + set k [lindex $keys end] + if {[regexp {\s} $k] || [string first . $k] >= 0} {} + if {![::tomlish::utils::is_barekey $k]} { + #Any dot in the key would have been split by to_dict - so if it's present here it's part of this key - not a level separator! + #requires quoting + #we'll use a basic mechanism for now to determine the type of quoting - whether it has any single quotes or not. + #todo - more? + #For keys - we currently (2025) are only allowed barekeys,basic strings and literal strings. (no multiline forms) + if {[string first ' $k] >=0} { + #basic string + } else { + #literal string + set K_PART [list SQKEY $k] + } + } else { + set K_PART [list KEY $k] + } + puts stderr "---parents:'$parents' keys:'$keys' vinfo: $vinfo---" + puts stderr "---tablestack: $tablestack---" + set result [list] + set lastparent [lindex $parents end] + if {$lastparent in [list "" do_inline]} { + if {[tomlish::dict::is_tomlish_typeval $vinfo]} { + set type [dict get $vinfo type] + #treat ITABLE differently? + set sublist [_from_dictval_tomltype $parents $tablestack $keys $vinfo] + lappend result DOTTEDKEY [list $K_PART {WS { }}] = {WS { }} $sublist {NEWLINE lf} + } else { + #set result [list TABLE $k {NEWLINE lf}] + if {$vinfo ne ""} { + + #set result [list DOTTEDKEY [list [list KEY $k]] = ] + #set records [list ITABLE] + + set last_tomltype_posn [tomlish::dict::last_tomltype_posn $vinfo] + + if {$lastparent eq "do_inline"} { + set result [list DOTTEDKEY [list $K_PART] =] + set records [list ITABLE] + } else { + #review - quoted k ?? + set result [list TABLE $k {NEWLINE lf}] + set tablestack [list {*}$tablestack [list T $k]] + set records [list] + } + + + + set lastidx [expr {[dict size $vinfo] -1}] + set dictidx 0 + dict for {vk vv} $vinfo { + if {[regexp {\s} $vk] || [string first . $vk] >= 0} { + set VK_PART [list SQKEY $vk] + } else { + set VK_PART [list KEY $vk] + } + if {[tomlish::dict::is_tomlish_typeval $vv]} { + #type x value y + set sublist [_from_dictval_tomltype $parents $tablestack $keys $vv] + set record [list DOTTEDKEY [list $VK_PART {WS { }}] = {WS { }} $sublist] + } else { + if {$vv eq ""} { + #experimental + if {[lindex $parents 0] eq "" && $dictidx > $last_tomltype_posn} { + puts stderr "_from_dictval could uninline KEY $vk (tablestack:$tablestack)" + #set tname [tomlish::dict::name_from_tablestack [list {*}$tablestack [list T $vk]]] + set tname [join [list {*}$keys $vk] .] + set record [list TABLE $tname {NEWLINE lf}] + set tablestack [list {*}$tablestack [list T $vk]] + } else { + set record [list DOTTEDKEY [list $VK_PART] = ITABLE] + set tablestack [list {*}$tablestack [list I $vk]] + } + } else { + if { 0 } { + #experiment.. sort of getting there. + if {[lindex $parents 0] eq "" && $dictidx > $last_tomltype_posn} { + puts stderr "_from_dictval could uninline2 KEYS [list {*}$keys $vk] (tablestack:$tablestack)" + set tname [join [list {*}$keys $vk] .] + set record [list TABLE $tname {NEWLINE lf}] + set tablestack [list {*}$tablestack [list T $vk]] + + #review - todo? + set dottedkey_value [_from_dictval [list {*}$parents TABLE] $tablestack [list {*}$keys $vk] $vv] + lappend record {*}$dottedkey_value + + } else { + set dottedkey_value [_from_dictval [list {*}$parents ITABLE] $tablestack [list {*}$keys $vk] $vv] + set record [list DOTTEDKEY [list $VK_PART] = $dottedkey_value] + } + } else { + set dottedkey_value [_from_dictval [list {*}$parents ITABLE] $tablestack [list {*}$keys $vk] $vv] + set record [list DOTTEDKEY [list $VK_PART] = $dottedkey_value] + } + } + } + if {$dictidx != $lastidx} { + #lappend record SEP + if {$lastparent eq "do_inline"} { + lappend record SEP + } else { + lappend record {NEWLINE lf} + } + } + lappend records $record + incr dictidx + } + if {$lastparent eq "do_inline"} { + lappend result $records {NEWLINE lf} + } else { + lappend result {*}$records {NEWLINE lf} + } + } else { + if {$lastparent eq "do_inline"} { + lappend result DOTTEDKEY [list [list KEY $k]] = ITABLE {NEWLINE lf} + } else { + lappend result TABLE $k {NEWLINE lf} + } + } + } + } else { + #lastparent is not toplevel "" or "do_inline" + if {[tomlish::dict::is_tomlish_typeval $vinfo]} { + #type x value y + set sublist [_from_dictval_tomltype $parents $tablestack $keys $vinfo] + lappend result {*}$sublist + } else { + if {$lastparent eq "TABLE"} { + #review + dict for {vk vv} $vinfo { + set dottedkey_value [_from_dictval [list {*}$parents DOTTEDKEY] $tablestack [list {*}$keys $vk] $vv] + lappend result [list DOTTEDKEY [list [list KEY $vk]] = $dottedkey_value {NEWLINE lf}] + } + } else { + if {$vinfo ne ""} { + set lastidx [expr {[dict size $vinfo] -1}] + set dictidx 0 + set sub [list] + #REVIEW + #set result $lastparent ;#e.g sets ITABLE + set result ITABLE + set last_tomltype_posn [tomlish::dict::last_tomltype_posn $vinfo] + dict for {vk vv} $vinfo { + if {[regexp {\s} $vk] || [string first . $vk] >=0} { + set VK_PART [list SQKEY $vk] + } else { + set VK_PART [list KEY $vk] + } + if {[tomlish::dict::is_tomlish_typeval $vv]} { + #type x value y + set sublist [_from_dictval_tomltype $parents $tablestack $keys $vv] + set record [list DOTTEDKEY [list $VK_PART] = $sublist] + } else { + if {$vv eq ""} { + #can't just uninline at this level + #we need a better method to query main dict for uninlinability at each level + # (including what's been inlined already) + #if {[lindex $parents 0] eq "" && $dictidx > $last_tomltype_posn} { + # puts stderr "_from_dictval uninline2 KEY $keys" + # set tname [join [list {*}$keys $vk] .] + # set record [list TABLE $tname {NEWLINE lf}] + # set tablestack [list {*}$tablestack [list T $vk]] + #} else { + set record [list DOTTEDKEY [list $VK_PART] = ITABLE] + #} + } else { + #set sub [_from_dictval ITABLE $vk $vv] + set dottedkey_value [_from_dictval [list {*}$parents ITABLE] $tablestack [list {*}$keys $vk] $vv] + #set record [list DOTTEDKEY [list $VK_PART] = ITABLE $dottedkey_value] + set record [list DOTTEDKEY [list $VK_PART] = $dottedkey_value] + } + } + if {$dictidx != $lastidx} { + lappend record SEP + } + lappend result $record + incr dictidx + } + } else { + puts stderr "table x-1" + lappend result DOTTEDKEY [list $K_PART] = ITABLE + } + } + } + } + return $result + } + + + proc from_dict {d} { + #consider: + # t1={a=1,b=2} + # x = 1 + #If we represent t1 as an expanded table we get + # [t1] + # a=1 + # b=2 + # x=1 + # --- which is incorrect - as x was a toplevel key like t1! + #This issue doesn't occur if x is itself an inline table + # t1={a=1,b=2} + # x= {no="problem"} + # + # (or if we were to reorder x to come before t1) + + #As the dictionary form doesn't distinguish the structure used to create tables {[table1]\nk=v} vs inline {table1={k=v}} + #Without a solution, from_dict would have to always produce the inline form for toplevel tables unless we allowed re-ordering, + #which is unpreferred here. + + #A possible solution: + #scan the top level to see if all (trailing) elements are themselves dicts + # (ie not of form {type XXX value yyy}) + # + # A further point is that if all root level values are at the 'top' - we can treat lower table-like structures as {[table]} elements + #ie we don't need to force do_inline if all the 'simple' keys are before any compound keys + + #set root_has_values 0 + #approach 1) - the naive approach - forces inline when not always necessary + #dict for {k v} $d { + # if {[llength $v] == 4 && [lindex $v 0] eq "type"} { + # set root_has_values 1 + # break + # } + #} + + + #approach 2) - track the position of last {type x value y} in the dictionary built by to_dict + # - still not perfect. Inlines dotted tables unnecessarily + #This means from_dict doesn't produce output optimal for human editing. + set last_simple [tomlish::dict::last_tomltype_posn $d] + + + ## set parent "do_inline" ;#a value used in _from_dictval to distinguish from "" or other context based parent values + #Any keys that are themselves tables - will need to be represented inline + #to avoid reordering, or incorrect assignment of plain values to the wrong table. + + ## set parent "" + #all toplevel keys in the dict structure can represent subtables. + #we are free to use {[tablename]\n} syntax for toplevel elements. + + + set tomlish [list TOMLISH] + set dictposn 0 + set tablestack [list [list T root]] ;#todo + dict for {t tinfo} $d { + if {$last_simple > $dictposn} { + set parents [list do_inline] + } else { + set parents [list ""] + } + set keys [list $t] + set trecord [_from_dictval $parents $tablestack $keys $tinfo] + lappend tomlish $trecord + incr dictposn + } + return $tomlish + } + + proc json_to_toml {json} { + #*** !doctools + #[call [fun json_to_toml] [arg json]] + #[para] + + set tomlish [::tomlish::from_json $json] + set toml [::tomlish::to_toml $tomlish] + } + + #TODO use huddle? + proc from_json {json} { + #set jstruct [::tomlish::json_struct $json] + #return [::tomlish::from_json_struct $jstruct] + package require huddle + package require huddle::json + set h [huddle::json::json2huddle parse $json] + + } + + proc from_json_struct {jstruct} { + package require fish::json_toml + return [fish::json_toml::jsonstruct2tomlish $jstruct] + } + + proc toml_to_json {toml} { + set tomlish [::tomlish::from_toml $toml] + return [::tomlish::get_json $tomlish] + } + + proc get_json {tomlish} { + package require fish::json + set d [::tomlish::to_dict $tomlish] + #return [::tomlish::dict_to_json $d] + return [fish::json::from "struct" $d] + } + + + + + #*** !doctools + #[list_end] [comment {--- end definitions namespace tomlish ---}] +} +# ++ +++ +++ +++ +++ +++ +++ +++ +++ +++ +++ + +namespace eval tomlish::build { + #STRING,INT,FLOAT,BOOL, DATETIME - simple wrappers for completeness + # take a value of the appropriate type and wrap as a tomlish tagged item + proc STRING {s} { + return [list STRING [::tomlish::utils::rawstring_to_Bstring_with_escaped_controls $s]] + } + proc LITERAL {litstring} { + error todo + } + + proc INT {i} { + #whole numbers, may be prefixed with a + or - + #Leading zeros are not allowed + #Hex,octal binary forms are allowed (toml 1.0) + #We will error out on encountering commas, as commas are interpreted differently depending on locale (and don't seem to be supported in the toml spec anyway) + #!todo - Tcl can handle bignums - bigger than a 64bit signed long as specified in toml. + # - We should probably raise an error for number larger than this and suggest the user supply it as a string? + if {[tcl::string::last , $i] > -1} { + error "Unable to interpret '$i' as an integer. Use underscores if you need a thousands separator [::tomlish::parse::report_line]" + } + if {![::tomlish::utils::int_validchars $i]} { + error "Unable to interpret '$i' as an integer. Only 0-9 + 1 _ characters are acceptable. [::tomlish::parse::report_line]" + } + + if {[::tomlish::utils::is_int $i]} { + return [list INT $i] + } else { + error "'$i' is not a valid integer as per the Toml spec. [::tomlish::parse::report_line]" + } + + } + + proc FLOAT {f} { + #convert any non-lower case variants of special values to lowercase for Toml + if {[::tcl::string::tolower $f] in {nan +nan -nan inf +inf -inf}} { + return [list FLOAT [tcl::string::tolower $f]] + } + if {[::tomlish::utils::is_float $f]} { + return [list FLOAT $f] + } else { + error "Unable to interpret '$f' as Toml float. Check your input, or check that tomlish is able to handle all Toml floats properly [::tomlish::parse::report_line]" + } + } + + proc DATETIME {str} { + if {[::tomlish::utils::is_datetime $str]} { + return [list DATETIME $str] + } else { + error "Unable to interpret '$str' as Toml datetime. Check your input, or check that tomlish is able to handle all Toml datetimes properly [::tomlish::parse::report_line]" + } + } + + proc BOOLEAN {b} { + #convert any Tcl-acceptable boolean to boolean as accepted by toml - lower case true/false + if {![tcl::string::is boolean -strict $b]} { + error "Unable to convert '$b' to Toml boolean true|false. [::tomlish::parse::report_line]" + } else { + if {$b && 1} { + return [::list BOOL true] + } else { + return [::list BOOL false] + } + } + } + + #REVIEW + #Take tablename followed by + # a) *tomlish* name-value pairs e.g table mydata [list KEY item11 = [list STRING "test"]] {KEY item2 = [list INT 1]} + # (accept also key value {STRING }) + # b) simple 2-element tcl lists being name & *simple* value pairs for which basic heuristics will be used to determine types + proc _table {name args} { + set pairs [list] + foreach t $args { + if {[llength $t] == 4} { + if {[tcl::string::tolower [lindex $t 0]] ne "key" || [tcl::string::tolower [lindex $t 2]] ni "= value"} { + error "Only items tagged as KEY = currently accepted as name-value pairs for table command" + } + lassign $t _k keystr _eq valuepart + if {[llength $valuepart] != 2} { + error "supplied value must be typed. e.g {INT 1} or {STRING test}" + } + lappend pairs [list KEY $keystr = $valuepart] + } elseif {[llength $t] == 2} { + #!todo - type heuristics + lassign $t n v + lappend pairs [list KEY $n = [list STRING $v]] + } else { + error "'KEY = { toml but + # the first newline is not part of the data. + # we elect instead to maintain a basic LITERALPART that must not contain newlines.. + # and to compose MULTILITERAL of multiple NEWLINE LITERALPART parts, + #with the datastructure representation dropping the first newline (if immediately following opening delim) when building the value. + set literal "" + foreach part [lrange $item 1 end] { + append literal [::tomlish::encode::tomlish [list $part] $nextcontext] + } + append toml '''$literal''' + } + INT - + BOOL - + FLOAT - + DATETIME { + append toml [lindex $item 1] + } + INCOMPLETE { + error "cannot process tomlish term tagged as INCOMPLETE" + } + COMMENT { + append toml "#[lindex $item 1]" + } + BOM { + #Byte Order Mark may appear at beginning of a file. Needs to be preserved. + append toml "\uFEFF" + } + default { + error "Not a properly formed 'tomlish' taggedlist.\n '$list'\n Unknown tag '[lindex $item 0]'. See output of \[tomlish::tags\] command." + } + } + + } + return $toml + } + + + + #*** !doctools + #[list_end] [comment {--- end definitions namespace tomlish::encode ---}] +} +#fish toml from tomlish + +#(encode tomlish as toml) +interp alias {} tomlish::to_toml {} tomlish::encode::tomlish + +# + + +namespace eval tomlish::decode { + #*** !doctools + #[subsection {Namespace tomlish::decode}] + #[para] + #[list_begin definitions] + + #return a Tcl list of tomlish tokens + #i.e get a standard list of all the toml terms in string $s + #where each element of the list is a *tomlish* term.. i.e a specially 'tagged' Tcl list. + #(simliar to a tcl 'Huddle' - but also supporting whitespace preservation) + # ---------------------------------------------------------------------------------------------- + # NOTE: the production of tomlish from toml source doesn't indicate the toml source was valid!!! + # e.g we deliberately don't check certain things such as duplicate table declarations here. + # ---------------------------------------------------------------------------------------------- + #Part of the justification for this is that as long as the syntax is toml shaped - we can load files which violate certain rules and allow programmatic manipulation. + # (e.g perhaps a toml editor to highlight violations for fixing) + # A further stage is then necessary to load the tomlish tagged list into a data structure more suitable for efficient query/reading. + # e.g dicts or an object oriented structure + #Note also - *no* escapes in quoted strings are processed. This is up to the datastructure stage + #e.g to_dict will substitute \r \n \uHHHH \UHHHHHHH etc + #This is important for tomlish to maintain the ability to perform competely lossless round-trips from toml to tomlish and back to toml. + # (which is handy for testing as well as editing some part of the structure with absolutely no effect on other parts of the document) + #If we were to unescape a tab character for example + # - we have no way of knowing if it was originally specified as \t \u0009 or \U00000009 or directly as a tab character. + # For this reason, we also do absolutely no line-ending transformations based on platform. + # All line-endings are maintained as is, and even a file with mixed lf crlf line-endings will be correctly interpreted and can be 'roundtripped' + + proc toml {args} { + #*** !doctools + #[call [fun toml] [arg arg...]] + #[para] return a Tcl list of tomlish tokens + + set s [join $args \n] + + namespace upvar ::tomlish::parse is_parsing is_parsing + set is_parsing 1 + + if {[info command ::tomlish::parse::spacestack] eq "::tomlish::parse::spacestack"} { + tomlish::parse::spacestack destroy + } + struct::stack ::tomlish::parse::spacestack + + namespace upvar ::tomlish::parse last_space_action last_space_action + namespace upvar ::tomlish::parse last_space_type last_space_type + + namespace upvar ::tomlish::parse tok tok + set tok "" + + namespace upvar ::tomlish::parse type type + namespace upvar ::tomlish::parse tokenType tokenType + ::tomlish::parse::set_tokenType "" + namespace upvar ::tomlish::parse tokenType_list tokenType_list + set tokenType [list] ;#Flat (un-nested) list of tokentypes found + + namespace upvar ::tomlish::parse lastChar lastChar + set lastChar "" + + + set result "" + namespace upvar ::tomlish::parse nest nest + set nest 0 + + namespace upvar ::tomlish::parse v v ;#array keyed on nest level + + + set v(0) {TOMLISH} + array set s0 [list] ;#whitespace data to go in {SPACE {}} element. + set parentlevel 0 + + namespace upvar ::tomlish::parse i i + set i 0 + + namespace upvar ::tomlish::parse state state + + namespace upvar ::tomlish::parse braceCount braceCount + set barceCount 0 + namespace upvar ::tomlish::parse bracketCount bracketCount + set bracketCount 0 + + set sep 0 + set r 1 + namespace upvar ::tomlish::parse token_waiting token_waiting + set token_waiting [dict create] ;#if ::tok finds a *complete* second token during a run, it will put the 2nd one here to be returned by the next call. + + + set state "table-space" + ::tomlish::parse::spacestack push {type space state table-space} + namespace upvar ::tomlish::parse linenum linenum;#'line number' of input data. (incremented for each literal linefeed - but not escaped ones in data) + set linenum 1 + + set ::tomlish::parse::state_list [list] + try { + while {$r} { + set r [::tomlish::parse::tok $s] + #puts stdout "got tok: '$tok' while parsing string '$s' " + set next_tokenType_known 0 ;#whether we begin a new token here based on what terminated the token result of 'tok' + + + #puts "got token: '$tok' tokenType='$tokenType'. while v($nest) = [set v($nest)]" + #puts "-->tok: $tok tokenType='$tokenType'" + set prevstate $state + set transition_info [::tomlish::parse::goNextState $tokenType $tok $state] + #review goNextState could perform more than one space_action + set space_action [dict get $transition_info space_action] + set newstate [dict get $transition_info newstate] ;#use of 'newstate' vs 'state' makes code clearer below + + if {[tcl::string::match "err-*" $state]} { + ::tomlish::log::warn "---- State error in state $prevstate for tokenType: $tokenType token value: $tok. $state aborting parse. [tomlish::parse::report_line]" + lappend v(0) [list ERROR tokentype $tokenType state $prevstate to $state leveldata [set v($nest)]] + return $v(0) + } + # --------------------------------------------------------- + #NOTE there may already be a token_waiting at this point + #set_token_waiting can raise an error here, + # in which case the space_action branch needs to be rewritten to handle the existing token_waiting + # --------------------------------------------------------- + + if {$space_action eq "pop"} { + #pop_trigger_tokens: newline tablename endarray endinlinetable + #note a token is a pop trigger depending on context. e.g first newline during keyval is a pop trigger. + set parentlevel [expr {$nest -1}] + set do_append_to_parent 1 ;#most tokens will leave this alone - but some like squote_seq need to do their own append + switch -exact -- $tokenType { + squote_seq { + #### + set do_append_to_parent 0 ;#mark false to indicate we will do our own appends if needed + #Without this - we would get extraneous empty list entries in the parent + # - as the xxx-squote-space isn't a space level from the toml perspective + # - the use of a space is to give us a hook here to (possibly) integrate extra quotes into the parent space when we pop + switch -- $tok { + ' { + tomlish::parse::set_token_waiting type startsquote value $tok complete 1 startindex [expr {$i -1}] + } + '' { + #review - we should perhaps return double_squote instead? + #tomlish::parse::set_token_waiting type literal value "" complete 1 + tomlish::parse::set_token_waiting type double_squote value "" complete 1 startindex [expr {$i - 2}] + } + ''' { + #### + #if already an eof in token_waiting - set_token_waiting will insert before it + tomlish::parse::set_token_waiting type triple_squote value $tok complete 1 startindex [expr {$i - 3}] + } + '''' { + switch -exact -- $prevstate { + leading-squote-space { + error "---- 4 squotes from leading-squote-space - shouldn't get here" + #we should have emitted the triple and left the last for next loop + } + trailing-squote-space { + tomlish::parse::set_token_waiting type triple_squote value $tok complete 1 startindex [expr {$i - 4}] + #todo integrate left squote with nest data at this level + set lastpart [lindex $v($parentlevel) end] + switch -- [lindex $lastpart 0] { + LITERALPART { + set newval "[lindex $lastpart 1]'" + set parentdata $v($parentlevel) + lset parentdata end [list LITERALPART $newval] + set v($parentlevel) $parentdata + } + NEWLINE { + lappend v($parentlevel) [list LITERALPART "'"] + } + MULTILITERAL { + #empty + lappend v($parentlevel) [list LITERALPART "'"] + } + default { + error "--- don't know how to integrate extra trailing squote with data $v($parentlevel)" + } + } + } + default { + error "--- unexpected popped due to squote_seq but came from state '$prevstate' should have been leading-squote-space or trailing-squote-space" + } + } + } + ''''' { + switch -exact -- $prevstate { + leading-squote-space { + error "---- 5 squotes from leading-squote-space - shouldn't get here" + #we should have emitted the triple and left the following squotes for next loop + } + trailing-squote-space { + tomlish::parse::set_token_waiting type triple_squote value $tok complete 1 startindex [expr {$i-5}] + #todo integrate left 2 squotes with nest data at this level + set lastpart [lindex $v($parentlevel) end] + switch -- [lindex $lastpart 0] { + LITERALPART { + set newval "[lindex $lastpart 1]''" + set parentdata $v($parentlevel) + lset parentdata end [list LITERALPART $newval] + set v($parentlevel) $parentdata + } + NEWLINE { + lappend v($parentlevel) [list LITERALPART "''"] + } + MULTILITERAL { + lappend v($parentlevel) [list LITERALPART "''"] + } + default { + error "--- don't know how to integrate extra trailing 2 squotes with data $v($parentlevel)" + } + } + } + default { + error "--- unexpected popped due to squote_seq but came from state '$prevstate' should have been leading-squote-space or trailing-squote-space" + } + } + } + } + puts stderr "tomlish::decode::toml ---- HERE squote_seq pop <$tok>" + } + triple_squote { + #presumably popping multiliteral-space + ::tomlish::log::debug "---- triple_squote for last_space_action pop leveldata: $v($nest)" + set merged [list] + set lasttype "" + foreach part $v($nest) { + switch -exact -- [lindex $part 0] { + MULTILITERAL { + lappend merged $part + } + LITERALPART { + if {$lasttype eq "LITERALPART"} { + set prevpart [lindex $merged end] + lset prevpart 1 [lindex $prevpart 1][lindex $part 1] + lset merged end $prevpart + } else { + lappend merged $part + } + } + NEWLINE { + #note that even though first newline ultimately gets stripped from multiliterals - that isn't done here + #we still need the first one for roundtripping. The datastructure stage is where it gets stripped. + lappend merged $part + } + default { + error "---- triple_squote unhandled part type [lindex $part 0] unable to merge leveldata: $v($next)" + } + } + set lasttype [lindex $part 0] + } + set v($nest) $merged + } + equal { + #pop caused by = + switch -exact -- $prevstate { + dottedkey-space { + tomlish::log::debug "---- equal ending dottedkey-space for last_space_action pop" + #re-emit for parent space + tomlish::parse::set_token_waiting type equal value = complete 1 startindex [expr {$i-1}] + } + dottedkey-space-tail { + #experiment? + tomlish::log::debug "---- equal ending dottedkey-space-tail for last_space_action pop" + #re-emit for parent space + tomlish::parse::set_token_waiting type equal value = complete 1 startindex [expr {$i-1}] + } + } + } + newline { + incr linenum + lappend v($nest) [list NEWLINE $tok] + } + tablename { + #note: a tablename only 'pops' if we are greater than zero + error "---- tablename pop should already have been handled as special case zeropoppushspace in goNextState" + } + tablearrayname { + #!review - tablearrayname different to tablename regarding push/pop? + #note: a tablename only 'pops' if we are greater than zero + error "---- tablearrayname pop should already have been handled as special case zeropoppushspace in goNextState" + } + endarray { + #nothing to do here. + } + comma { + #comma for inline table will pop the keyvalue space + lappend v($nest) "SEP" + } + endinlinetable { + ::tomlish::log::debug "---- endinlinetable for last_space_action pop" + } + endmultiquote { + ::tomlish::log::debug "---- endmultiquote for last_space_action 'pop'" + } + default { + error "---- unexpected tokenType '$tokenType' for last_space_action 'pop'" + } + } + if {$do_append_to_parent} { + #e.g squote_seq does it's own appends as necessary - so won't get here + lappend v($parentlevel) [set v($nest)] + } + + incr nest -1 + + } elseif {$last_space_action eq "push"} { + set prevnest $nest + incr nest 1 + set v($nest) [list] + # push_trigger_tokens: barekey dquotedkey startinlinetable startarray tablename tablearrayname + + + switch -exact -- $tokenType { + squote_seq_begin { + #### + if {[dict exists $transition_info starttok] && [dict get $transition_info starttok] ne ""} { + lassign [dict get $transition_info starttok] starttok_type starttok_val + set next_tokenType_known 1 + ::tomlish::parse::set_tokenType $starttok_type + set tok $starttok_val + } + } + squotedkey { + switch -exact -- $prevstate { + table-space - itable-space { + set v($nest) [list DOTTEDKEY] + } + } + #todo - check not something already waiting? + tomlish::parse::set_token_waiting type $tokenType value $tok complete 1 startindex [expr {$i -[tcl::string::length $tok]}] ;#re-submit token in the newly pushed space + } + dquotedkey { + switch -exact -- $prevstate { + table-space - itable-space { + set v($nest) [list DOTTEDKEY] + } + } + #todo - check not something already waiting? + tomlish::parse::set_token_waiting type $tokenType value $tok complete 1 startindex [expr {$i -[tcl::string::length $tok]}] ;#re-submit token in the newly pushed space + } + XXXdquotedkey - XXXitablequotedkey { + #todo + set v($nest) [list DQKEY $tok] ;#$tok is the keyname + } + barekey { + switch -exact -- $prevstate { + table-space - itable-space { + set v($nest) [list DOTTEDKEY] + } + } + #todo - check not something already waiting? + set waiting [tomlish::parse::get_token_waiting] + if {[llength $waiting]} { + set i [dict get $waiting startindex] + tomlish::parse::clear_token_waiting + tomlish::parse::set_token_waiting type $tokenType value $tok complete 1 startindex [expr {$i -[tcl::string::length $tok]}] ;#re-submit token in the newly pushed space + } else { + tomlish::parse::set_token_waiting type $tokenType value $tok complete 1 startindex [expr {$i -[tcl::string::length $tok]}] ;#re-submit token in the newly pushed space + } + } + startsquote { + #JMN + set next_tokenType_known 1 + ::tomlish::parse::set_tokenType "squotedkey" + set tok "" + } + tablename { + #note: we do not use the output of tomlish::tablename_trim to produce a tablename for storage in the tomlish list! + #The tomlish list is intended to preserve all whitespace (and comments) - so a roundtrip from toml file to tomlish + # back to toml file will be identical. + #It is up to the datastructure stage to normalize and interpret tomlish for programmatic access. + # we call tablename_trim here only to to validate that the tablename data is well-formed at the outermost level, + # so we can raise an error at this point rather than create a tomlish list with obviously invalid table names. + + #todo - review! It's arguable that we should not do any validation here, and just store even incorrect raw tablenames, + # so that the tomlish list is more useful for say a toml editor. Consider adding an 'err' tag to the appropriate place in the + # tomlish list? + + set test_only [::tomlish::utils::tablename_trim $tok] + ::tomlish::log::debug "---- trimmed (but not normalized) tablename: '$test_only'" + set v($nest) [list TABLE $tok] ;#$tok is the *raw* table name + #note also that equivalent tablenames may have different toml representations even after being trimmed! + #e.g ["x\t\t"] & ["x "] (tab escapes vs literals) + #These will show as above in the tomlish list, but should normalize to the same tablename when used as keys by the datastructure stage. + } + tablearrayname { + set test_only [::tomlish::utils::tablename_trim $tok] + puts stdout "trimmed (but not normalized) tablearrayname: '$test_only'" + set v($nest) [list TABLEARRAY $tok] ;#$tok is the *raw* tablearray name + } + startarray { + set v($nest) [list ARRAY] ;#$tok is just the opening bracket - don't output. + } + startinlinetable { + set v($nest) [list ITABLE] ;#$tok is just the opening curly brace - don't output. + } + startmultiquote { + ::tomlish::log::debug "---- push trigger tokenType startmultiquote" + set v($nest) [list MULTISTRING] ;#container for STRINGPART, WS, CONT, NEWLINE + } + triple_squote { + ::tomlish::log::debug "---- push trigger tokenType triple_squote" + set v($nest) [list MULTILITERAL] ;#container for NEWLINE,LITERAL + } + default { + error "---- push trigger tokenType '$tokenType' not yet implemented" + } + } + + } else { + #no space level change + switch -exact -- $tokenType { + squotedkey { + puts "---- squotedkey in state $prevstate (no space level change)" + lappend v($nest) [list SQKEY $tok] + } + dquotedkey { + puts "---- dquotedkey in state $prevstate (no space level change)" + lappend v($nest) [list DQKEY $tok] + } + barekey { + lappend v($nest) [list KEY $tok] + } + dotsep { + lappend v($nest) [list DOTSEP] + } + starttablename { + #$tok is triggered by the opening bracket and sends nothing to output + } + starttablearrayname { + #$tok is triggered by the double opening brackets and sends nothing to output + } + tablename - tablenamearray { + error "---- did not expect 'tablename/tablearrayname' without space level change (no space level change)" + #set v($nest) [list TABLE $tok] + } + endtablename - endtablearrayname { + #no output into the tomlish list for this token + } + startinlinetable { + puts stderr "---- decode::toml error. did not expect startinlinetable without space level change (no space level change)" + } + startquote { + switch -exact -- $newstate { + string-state { + set next_tokenType_known 1 + ::tomlish::parse::set_tokenType "string" + set tok "" + } + quoted-key { + set next_tokenType_known 1 + ::tomlish::parse::set_tokenType "dquotedkey" + set tok "" + } + XXXitable-quoted-key { + set next_tokenType_known 1 + ::tomlish::parse::set_tokenType "itablequotedkey" + set tok "" + } + default { + error "---- startquote switch case not implemented for nextstate: $newstate (no space level change)" + } + } + } + startsquote { + switch -exact -- $newstate { + literal-state { + set next_tokenType_known 1 + ::tomlish::parse::set_tokenType "literal" + set tok "" + } + squoted-key { + set next_tokenType_known 1 + ::tomlish::parse::set_tokenType "squotedkey" + set tok "" + } + multiliteral-space { + #false alarm squote returned from squote_seq pop + ::tomlish::log::debug "---- adding lone squote to own LITERALPART nextstate: $newstate (no space level change)" + #(single squote - not terminating space) + lappend v($nest) [list LITERALPART '] + #may need to be joined on pop if there are neighbouring LITERALPARTs + } + default { + error "---- startsquote switch case not implemented for nextstate: $newstate (no space level change)" + } + } + } + startmultiquote { + #review + puts stderr "---- got startmultiquote in state $prevstate (no space level change)" + set next_tokenType_known 1 + ::tomlish::parse::set_tokenType "stringpart" + set tok "" + } + endquote { + #nothing to do? + set tok "" + } + endsquote { + set tok "" + } + endmultiquote { + #JMN!! + set tok "" + } + string { + lappend v($nest) [list STRING $tok] ;#directly wrapped in dquotes + } + literal { + lappend v($nest) [list LITERAL $tok] ;#directly wrapped in squotes + } + double_squote { + switch -exact -- $prevstate { + keyval-value-expected { + lappend v($nest) [list LITERAL ""] + } + multiliteral-space { + #multiliteral-space to multiliteral-space + lappend v($nest) [list LITERALPART ''] + } + default { + error "--- unhandled tokenType '$tokenType' when transitioning from state $prevstate to $newstate [::tomlish::parse::report_line] (no space level change)" + } + } + } + multistring { + #review + lappend v($nest) [list MULTISTRING $tok] + } + stringpart { + lappend v($nest) [list STRINGPART $tok] ;#will not get wrapped in dquotes directly + } + multiliteral { + lappend v($nest) [LIST MULTILITERAL $tok] + } + literalpart { + lappend v($nest) [list LITERALPART $tok] ;#will not get wrapped in squotes directly + } + itablequotedkey { + + } + untyped_value { + #we can't determine the type of unquoted values (int,float,datetime,bool) until the entire token was read. + if {$tok in {true false}} { + set tag BOOL + } elseif {[::tomlish::utils::is_int $tok]} { + set tag INT + } elseif {[::tomlish::utils::is_float $tok]} { + set tag FLOAT + } elseif {[::tomlish::utils::is_datetime $tok]} { + set tag DATETIME + } else { + error "---- Unable to interpret '$tok' as Boolean, Integer, Float or Datetime as per the toml specs. [tomlish::parse::report_line] (no space level change)" + } + lappend v($nest) [list $tag $tok] + + } + comment { + #puts stdout "----- comment token returned '$tok'------" + lappend v($nest) [list COMMENT "$tok"] + } + equal { + #we append '=' to the nest so that any surrounding whitespace is retained. + lappend v($nest) = + } + comma { + lappend v($nest) SEP + } + newline { + incr linenum + lappend v($nest) [list NEWLINE $tok] + } + whitespace { + lappend v($nest) [list WS $tok] + } + continuation { + lappend v($nest) CONT + } + bom { + lappend v($nest) BOM + } + eof { + #ok - nothing more to add to the tomlish list. + #!todo - check previous tokens are complete/valid? + } + default { + error "--- unknown tokenType '$tokenType' during state $prevstate [::tomlish::parse::report_line] (no space level change)" + } + } + } + + if {!$next_tokenType_known} { + ::tomlish::log::notice "---- tomlish::decode::toml - current tokenType:$tokenType Next token type not known" + ::tomlish::parse::set_tokenType "" + set tok "" + } + + if {$state eq "end-state"} { + break + } + + + } + + #while {$nest > 0} { + # lappend v([expr {$nest -1}]) [set v($nest)] + # incr nest -1 + #} + while {[::tomlish::parse::spacestack size] > 1} { + ::tomlish::parse::spacestack pop + lappend v([expr {$nest -1}]) [set v($nest)] + incr nest -1 + + #set parent [spacestack peek] ;#the level being appended to + #lassign $parent type state + #if {$type eq "space"} { + # + #} elseif {$type eq "buffer"} { + # lappend v([expr {$nest -1}]) {*}[set v($nest)] + #} else { + # error "invalid spacestack item: $parent" + #} + } + + } finally { + set is_parsing 0 + } + return $v(0) + } + + #*** !doctools + #[list_end] [comment {--- end definitions namespace tomlish::decode ---}] +} +#decode toml to tomlish +interp alias {} tomlish::from_toml {} tomlish::decode::toml + +namespace eval tomlish::utils { + #*** !doctools + #[subsection {Namespace tomlish::utils}] + #[para] + #[list_begin definitions] + + + #tablenames (& tablearraynames) may contain irrelevant leading, trailing and interspersed whitespace + # tablenames can be made up of segments delimited by dots. .eg [ a.b . c ] + #trimmed, the tablename becomes {a.b.c} + # A segment may contain whitespace if it is quoted e.g [a . b . "c etc " ] + #ie whitespace is only irrelevant if it's outside a quoted segment + #trimmed, the tablename becomes {a.b."c etc "} + proc tablename_trim {tablename} { + set segments [tablename_split $tablename false] + set trimmed_segments [list] + foreach seg $segments { + lappend trimmed_segments [::string trim $seg " \t"] + } + return [join $trimmed_segments .] + } + + #basic generic quote matching for single and double quotes + #note for example that {[o'malley]} will return sq - as the single quote is not closed or wrapped in double quotes + proc tok_in_quotedpart {tok} { + set sLen [tcl::string::length $tok] + set quote_type "" + set had_slash 0 + for {set i 0} {$i < $sLen} {incr i} { + set c [tcl::string::index $tok $i] + if {$quote_type eq ""} { + if {$had_slash} { + #don't enter quote mode + #leave slash_mode because even if current char is slash - it is escaped + set had_slash 0 + } else { + set ctype [tcl::string::map [list {"} dq {'} sq \\ bsl] $c] + switch -- $ctype { + dq { + set quote_type dq + } + sq { + set quote_type sq + } + bsl { + set had_slash 1 + } + } + } + } else { + if {$had_slash} { + #don't leave quoted mode + #leave slash_mode because even if current char is slash - it is escaped + set had_slash 0 + } else { + set ctype [tcl::string::map [list {"} dq {'} sq \\ bsl] $c] + switch -- $ctype { + dq { + if {$quote_type eq "dq"} { + set quote_type "" + } + } + sq { + if {$quote_type eq "sq"} { + set quote_type "" + } + } + bsl { + set had_slash 1 + } + } + } + } + } + return $quote_type ;#dq | sq + } + + #utils::tablename_split + proc tablename_split {tablename {normalize false}} { + #we can't just split on . because we have to handle quoted segments which may contain a dot. + #eg {dog."tater.man"} + set sLen [tcl::string::length $tablename] + set segments [list] + set mode "unknown" ;#5 modes: unknown, quoted,litquoted, unquoted, syntax + #quoted is for double-quotes, litquoted is for single-quotes (string literal) + set seg "" + for {set i 0} {$i < $sLen} {incr i} { + + if {$i > 0} { + set lastChar [tcl::string::index $tablename [expr {$i - 1}]] + } else { + set lastChar "" + } + + set c [tcl::string::index $tablename $i] + + if {$c eq "."} { + switch -exact -- $mode { + unquoted { + #dot marks end of segment. + lappend segments $seg + set seg "" + set mode "unknown" + } + quoted { + append seg $c + } + unknown { + lappend segments $seg + set seg "" + } + litquoted { + append seg $c + } + default { + #mode: syntax + #we got our dot. - the syntax mode is now satisfied. + set mode "unknown" + } + } + } elseif {($c eq "\"") && ($lastChar ne "\\")} { + if {$mode eq "unknown"} { + if {[tcl::string::trim $seg] ne ""} { + #we don't allow a quote in the middle of a bare key + error "tablename_split. character '\"' invalid at this point in tablename. tablename: '$tablename'" + } + set mode "quoted" + set seg "\"" + } elseif {$mode eq "unquoted"} { + append seg $c + } elseif {$mode eq "quoted"} { + append seg $c + + if {$normalize} { + lappend segments [::tomlish::utils::unescape_string [tcl::string::range $seg 1 end-1]] + } else { + lappend segments $seg + } + + set seg "" + set mode "syntax" ;#make sure we only accept a dot or end-of-data now. + } elseif {$mode eq "litquoted"} { + append seg $c + } elseif {$mode eq "syntax"} { + error "tablename_split. expected whitespace or dot, got double quote. tablename: '$tablename'" + } + } elseif {($c eq "\'")} { + if {$mode eq "unknown"} { + append seg $c + set mode "litquoted" + } elseif {$mode eq "unquoted"} { + #single quote inside e.g o'neill + append seg $c + } elseif {$mode eq "quoted"} { + append seg $c + + } elseif {$mode eq "litquoted"} { + append seg $c + #no normalization to do + lappend segments $seg + set seg "" + set mode "syntax" + } elseif {$mode eq "syntax"} { + error "tablename_split. expected whitespace or dot, got single quote. tablename: '$tablename'" + } + + } elseif {$c in [list " " \t]} { + if {$mode eq "syntax"} { + #ignore + } else { + append seg $c + } + } else { + if {$mode eq "syntax"} { + error "tablename_split. Expected a dot separator. got '$c'. tablename: '$tablename'" + } + if {$mode eq "unknown"} { + set mode "unquoted" + } + append seg $c + } + if {$i == $sLen-1} { + #end of data + ::tomlish::log::debug "End of data: mode='$mode'" + #REVIEW - we can only end up in unquoted or syntax here? are other branches reachable? + switch -exact -- $mode { + quoted { + if {$c ne "\""} { + error "tablename_split. missing closing double-quote in a segment. tablename: '$tablename'" + } + if {$normalize} { + lappend segments [::tomlish::utils::unescape_string [tcl::string::range $seg 1 end-1]] + #lappend segments [subst -nocommands -novariables [::string range $seg 1 end-1]] ;#wrong + } else { + lappend segments $seg + } + } + litquoted { + set trimmed_seg [tcl::string::trim $seg] + if {[tcl::string::index $trimmed_seg end] ne "\'"} { + error "tablename_split. missing closing single-quote in a segment. tablename: '$tablename'" + } + lappend segments $seg + } + unquoted - unknown { + lappend segments $seg + } + syntax { + #ok - segment already lappended + } + default { + lappend segments $seg + } + } + } + } + foreach seg $segments { + set trimmed [tcl::string::trim $seg " \t"] + #note - we explicitly allow 'empty' quoted strings '' & "" + # (these are 'discouraged' but valid toml keys) + #if {$trimmed in [list "''" "\"\""]} { + # puts stderr "tablename_split. warning - Empty quoted string as tablename segment" + #} + if {$trimmed eq "" } { + error "tablename_split. Empty segment found. tablename: '$tablename' segments [llength $segments] ($segments)" + } + } + return $segments + } + + proc unicode_escape_info {slashu} { + #!todo + # validate that slashu is either a \uxxxx or \Uxxxxxxxx value of the correct length and + # is a valid 'unicode scalar value' (any Unicode code point except high-surrogate and low-surrogate code points) + # ie integers in the range 0 to D7FF16 and E00016 to 10FFFF16 inclusive + #expr {(($x >= 0) && ($x <= 0xD7FF16)) || (($x >= 0xE00016) && ($x <= 0x10FFFF16))} + if {[tcl::string::match {\\u*} $slashu]} { + set exp {^\\u([0-9a-fA-F]{4}$)} + if {[regexp $exp $slashu match hex]} { + if {[scan $hex %4x dec] != 1} { + #why would a scan ever fail after matching the regexp? !todo - review. unreachable branch? + return [list err [list reason "Failed to convert '$hex' to decimal"]] + } else { + return [list ok [list char [subst -nocommand -novariable $slashu]]] + } + } else { + return [list err [list reason "Supplied string not of the form \\uHHHH where H in \[0-9a-fA-F\]"]] + } + } elseif {[tcl::string::match {\\U*} $slashu]} { + set exp {^\\U([0-9a-fA-F]{8}$)} + if {[regexp $exp $slashu match hex]} { + if {[scan $hex %8x dec] != 1} { + #why would a scan ever fail after matching the regexp? !todo - review. unreachable branch? + return [list err [list reason "Failed to convert '$hex' to decimal"]] + } else { + if {(($dec >= 0) && ($dec <= 0xD7FF16)) || (($dec >= 0xE00016) && ($dec <= 0x10FFFF16))} { + return [list ok [list char [subst -nocommand -novariable $slashu]]] + } else { + return [list err [list reason "$slashu is not within the 'unicode scalar value' ranges 0 to 0xD7FF16 or 0xE00016 to 0x10FFFF16"]] + } + } + } else { + return [list err [list reason "Supplied string not of the form \\UHHHHHHHH where H in \[0-9a-fA-F\]"]] + } + } else { + return [list err [list reason "Supplied string did not start with \\u or \\U" ]] + } + + } + + #Note that unicode characters don't *have* to be escaped. + #So if we provide a function named 'escape_string', the name implies the inverse of unescape_string which unescapes unicode \u \U values. + #- an inverse of unescape_string would encode all unicode chars unnecessarily. + #- as toml accepts a compact escape sequence for common chars such as tab,backspace,linefeed etc but also allows the full form \u009 etc + #- escape_string and unescape_string would not be reliably roundtrippable inverses anyway. + #REVIEW - provide it anyway? When would it be desirable to use? + + variable Bstring_control_map [list\ + \b {\b}\ + \n {\n}\ + \r {\r}\ + \" {\"}\ + \x1b {\e}\ + \\ "\\\\"\ + ] + #\e for \x1b seems like it might be included - v1.1?? hard to find current state of where toml is going :/ + #for a Bstring (Basic string) tab is explicitly mentioned as not being one that must be escaped. + for {set cdec 0} {$cdec <= 8} {incr cdec} { + set hhhh [format %.4X $cdec] + lappend Bstring_control_map [format %c $cdec] \\u$hhhh + } + for {set cdec [expr {0x0A}]} {$cdec <= 0x1F} {incr cdec} { + set hhhh [format %.4X $cdec] + lappend Bstring_control_map [format %c $cdec] \\u$hhhh + } + # \u007F = 127 + lappend Bstring_control_map [format %c 127] \\u007F + + #Note the inclusion of backslash in the list of controls makes this non idempotent - subsequent runs would keep encoding the backslashes! + #escape only those chars that must be escaped in a Bstring (e.g not tab which can be literal or escaped) + #for example - can be used by from_dict to produce valid Bstring data for a tomlish record + proc rawstring_to_Bstring_with_escaped_controls {str} { + #for the well known chars that have compact escape sequences allowed by toml - we choose that form over the full \u form. + #we'll use a string map with an explicit list rather than algorithmic at runtime + # - the string map is probably more performant than splitting a string, especially if it's large + variable Bstring_control_map + return [string map $Bstring_control_map $str] + } + + #review - unescape what string? Bstring vs MLBstring? + #we should be specific in the function naming here + #used by to_dict - so part of validation? - REVIEW + proc unescape_string {str} { + #note we can't just use Tcl subst because: + # it also transforms \a (audible bell) and \v (vertical tab) which are not in the toml spec. + # it would strip out backslashes inappropriately: e.g "\j" becomes just j + # it recognizes other escapes which aren't approprite e.g \xhh and octal \nnn + # it replaces \ with a single whitespace (trailing backslash) + #This means we shouldn't use 'subst' on the whole string, but instead substitute only the toml-specified escapes (\r \n \b \t \f \\ \" \uhhhh & \Uhhhhhhhh + + set buffer "" + set buffer4 "" ;#buffer for 4 hex characters following a \u + set buffer8 "" ;#buffer for 8 hex characters following a \u + + set sLen [tcl::string::length $str] + + #we need to handle arbitrarily long sequences of backslashes. \\\\\ etc + set slash_active 0 + set unicode4_active 0 + set unicode8_active 0 + + ::tomlish::log::debug "unescape_string. got len [string length str] str $str" + + #!todo - check for invalid data in the form of a raw carriage return (decimal 13) without following linefeed? + set i 0 + for {} {$i < $sLen} {} { + if {$i > 0} { + set lastChar [tcl::string::index $str [expr {$i - 1}]] + } else { + set lastChar "" + } + + set c [tcl::string::index $str $i] + #::tomlish::log::debug "unescape_string. got char $c" ;#too much? + + #---------------------- + #as we are 'unescaping' - should we really be testing for existing values that should have been escaped? + #this test looks incomplete anyway REVIEW + scan $c %c n + if {($n <= 31) && ($n != 9) && ($n != 10) && ($n != 13)} { + #we don't expect unescaped unicode characters from 0000 to 001F - + #*except* for raw tab (which is whitespace) and newlines + error "unescape_string. Invalid data for a toml string. Unescaped control character (decimal $n) [::tomlish::utils::string_to_slashu $c]" + } + #---------------------- + + incr i ;#must incr here because we do'returns'inside the loop + if {$c eq "\\"} { + if {$slash_active} { + append buffer "\\" + set slash_active 0 + } elseif {$unicode4_active} { + error "unescape_string. unexpected case slash during unicode4 not yet handled" + } elseif {$unicode8_active} { + error "unescape_string. unexpected case slash during unicode8 not yet handled" + } else { + # don't output anything (yet) + set slash_active 1 + } + } else { + if {$unicode4_active} { + if {[tcl::string::length $buffer4] < 4} { + append buffer4 $c + } + if {[tcl::string::length $buffer4] == 4} { + #we have a \uHHHH to test + set unicode4_active 0 + set result [tomlish::utils::unicode_escape_info "\\u$buffer4"] + if {[lindex $result 0] eq "ok"} { + append buffer [dict get $result ok char] + } else { + error "unescape_string error: [lindex $result 1]" + } + } + } elseif {$unicode8_active} { + if {[tcl::string::length $buffer8] < 8} { + append buffer8 $c + } + if {[tcl::string::length $buffer8] == 8} { + #we have a \UHHHHHHHH to test + set unicode8_active 0 + set result [tomlish::utils::unicode_escape_info "\\U$buffer8"] + if {[lindex $result 0] eq "ok"} { + append buffer [dict get $result ok char] + } else { + error "unescape_string error: [lindex $result 1]" + } + } + } elseif {$slash_active} { + set slash_active 0 + set ctest [tcl::string::map {{"} dq} $c] + switch -exact -- $ctest { + dq { + set e "\\\"" + append buffer [subst -nocommand -novariable $e] + } + b - t - n - f - r { + set e "\\$c" + append buffer [subst -nocommand -novariable $e] + } + u { + set unicode4_active 1 + set buffer4 "" + } + U { + set unicode8_active 1 + set buffer8 "" + } + default { + set slash_active 0 + #review - toml spec says all other escapes are reserved + #and if they are used TOML should produce an error. + #we leave detecting this for caller for now - REVIEW + append buffer "\\" + append buffer $c + } + } + } else { + append buffer $c + } + } + } + #puts stdout "EOF 4:$unicode4_active 8:$unicode8_active slash:$slash_active" + if {$unicode4_active} { + error "End of string reached before complete unicode escape sequence \uHHHH" + } + if {$unicode8_active} { + error "End of string reached before complete unicode escape sequence \UHHHHHHHH" + } + if {$slash_active} { + append buffer "\\" + } + return $buffer + } + + #This does not have to do with unicode normal forms - which it seems toml has decided against regarding use in keys (review/references?) + #This is meant for internal use regarding ensuring we match equivalent keys which may have just been specified with different string mechanisms, + #e.g squoted vs dquoted vs barekey. + proc normalize_key {rawkey} { + set c1 [tcl::string::index $rawkey 0] + set c2 [tcl::string::index $rawkey end] + if {($c1 eq "'") && ($c2 eq "'")} { + #single quoted segment. No escapes allowed within it. + set key [tcl::string::range $rawkey 1 end-1] + } elseif {($c1 eq "\"") && ($c2 eq "\"")} { + #double quoted segment. Apply escapes. + # + set keydata [tcl::string::range $rawkey 1 end-1] ;#strip outer quotes only + #e.g key could have mix of \UXXXXXXXX escapes and unicode chars + #or mix of \t and literal tabs. + #unescape to convert all to literal versions for comparison + set key [::tomlish::utils::unescape_string $keydata] + #set key [subst -nocommands -novariables $keydata] ;#wrong. Todo - create a string escape substitution function. + } else { + set key $rawkey + } + return $key + } + + proc string_to_slashu {string} { + set rv {} + foreach c [split $string {}] { + scan $c %c cdec + if {$cdec > 65535} { + append rv {\U} [format %.8X $cdec] + } else { + append rv {\u} [format %.4X $cdec] + } + } + return $rv + } + + #'nonprintable' is conservative here because some systems (e.g windows console) are very limited in what they can display. + #This is used for display purposes only (error msgs) + proc nonprintable_to_slashu {s} { + set res "" + foreach i [split $s ""] { + scan $i %c cdec + + set printable 0 + if {($cdec>31) && ($cdec<127)} { + set printable 1 + } + if {$printable} { + append res $i + } else { + if {$cdec > 65535} { + append res \\U[format %.8X $cdec] + } else { + append res \\u[format %.4X $cdec] + } + } + } + set res + } ;# initial version from tcl wiki RS + + #check if str is valid for use as a toml bare key + #Early toml versions? only allowed letters + underscore + dash + proc is_barekey1 {str} { + if {[tcl::string::length $str] == 0} { + return 0 + } else { + set matches [regexp -all {[a-zA-Z0-9\_\-]} $str] + if {[tcl::string::length $str] == $matches} { + #all characters match the regexp + return 1 + } else { + return 0 + } + } + } + + #from toml.abnf in github.com/toml-lang/toml + #unquoted-key = 1*unquoted-key-char + #unquoted-key-char = ALPHA / DIGIT / %x2D / %x5F ; a-z A-Z 0-9 - _ + #unquoted-key-char =/ %xB2 / %xB3 / %xB9 / %xBC-BE ; superscript digits, fractions + #unquoted-key-char =/ %xC0-D6 / %xD8-F6 / %xF8-37D ; non-symbol chars in Latin block + #unquoted-key-char =/ %x37F-1FFF ; exclude GREEK QUESTION MARK, which is basically a semi-colon + #unquoted-key-char =/ %x200C-200D / %x203F-2040 ; from General Punctuation Block, include the two tie symbols and ZWNJ, ZWJ + #unquoted-key-char =/ %x2070-218F / %x2460-24FF ; include super-/subscripts, letterlike/numberlike forms, enclosed alphanumerics + #unquoted-key-char =/ %x2C00-2FEF / %x3001-D7FF ; skip arrows, math, box drawing etc, skip 2FF0-3000 ideographic up/down markers and spaces + #unquoted-key-char =/ %x2070-21FF / %x2300-24FF ; skip math operators + #unquoted-key-char =/ %x25A0-268B / %x2690-2757 ; skip box drawing, block elements, and some yin-yang symbols + #unquoted-key-char =/ %x2762-2767 / %x2776-27E5 ; skip some Dingbat punctuation + #unquoted-key-char =/ %x2801-297F ; skip some math brackets and arrows, and braille blank + #unquoted-key-char =/ %x2B00-2FFF / %x3001-D7FF ; skip various math operators and symbols, and ideographic space + #unquoted-key-char =/ %xF900-FDCF / %xFDF0-FFFD ; skip D800-DFFF surrogate block, E000-F8FF Private Use area, FDD0-FDEF intended for process-internal use (unicode) + #unquoted-key-char =/ %x10000-EFFFF ; all chars outside BMP range, excluding Private Use planes (F0000-10FFFF) + variable re_barekey + set ranges [list] + lappend ranges {a-zA-Z0-9\_\-} + lappend ranges {\u00B2} {\u00B3} {\u00B9} {\u00BC-\u00BE} ;# superscript digits, fractions + lappend ranges {\u00C0-\u00D6} {\u00D8-\u00F6} {\u00F8-\u037D} ;# non-symbol chars in Latin block + lappend ranges {\u037f-\u1FFF} ;# exclude GREEK QUESTION MARK, which is basically a semi-colon + lappend ranges {\u200C-\u200D} {\u203F-\u2040} ;# from General Punctuation Block, include the two tie symbols and ZWNJ, ZWJ + lappend ranges {\u2070-\u218f} {\u2460-\u24FF} ;# include super-subscripts, letterlike/numberlike forms, enclosed alphanumerics + lappend ranges {\u2C00-\u2FEF} {\u3001-\uD7FF} ;# skip arrows, math, box drawing etc, skip 2FF0-3000 ideographic up/down markers and spaces + lappend ranges {\u2070-\u21FF} {\u2300-\u24FF} ;# skip math operators + lappend ranges {\u25A0-\u268B} {\u2690-\u2757} ;# skip box drawing, block elements, and some yin-yang symbols + lappend ranges {\u2762-\u2767} {\u2776-\u27E5} ;# skip some Dingbat punctuation + lappend ranges {\u2801-\u297F} ;# skip some math brackets and arrows, and braille blank + lappend ranges {\u2B00-\u2FFF} {\u3001-\uD7FF} ;# skip various math operators and symbols, and ideographic space + lappend ranges {\uF900-\uFDCF} {\uFDF0-\uFFFD} ;# skip D800-DFFF surrogate block, E000-F8FF Private Use area, FDD0-FDEF intended for process-internal use (unicode) + lappend ranges {\U10000-\UEFFFF} ;# all chars outside BMP range, excluding Private Use planes (F0000-10FFFF) + set re_barekey {^[} + foreach r $ranges { + append re_barekey $r + } + append re_barekey {]+$} + + proc is_barekey {str} { + if {[tcl::string::length $str] == 0} { + return 0 + } + variable re_barekey + return [regexp $re_barekey $str] + } + + #test only that the characters in str are valid for the toml specified type 'integer'. + proc int_validchars1 {str} { + set numchars [tcl::string::length $str] + if {[regexp -all {[0-9\_\-\+]} $str] == $numchars} { + return 1 + } else { + return 0 + } + } + #add support for hex,octal,binary 0x.. 0o.. 0b... + proc int_validchars {str} { + set numchars [tcl::string::length $str] + if {[regexp -all {[0-9\_xo\-\+A-Fa-f]} $str] == $numchars} { + return 1 + } else { + return 0 + } + } + + proc is_int {str} { + set matches [regexp -all {[0-9\_xo\-\+A-Fa-f]} $str] ;#0b101 etc covered by a-f + + if {[tcl::string::length $str] == $matches} { + #all characters in legal range + + # --------------------------------------- + #check for leading zeroes in non 0x 0b 0o + #first strip any +, - or _ (just for this test) + #(but still allowing 0 -0 +0) + set check [tcl::string::map {+ "" - "" _ ""} $str] + if {([tcl::string::length $check] > 1) && ([tcl::string::index $check 0] eq "0") && ([tcl::string::index $check 1] ni {o x b})} { + return 0 + } + # --------------------------------------- + + #check +,- only occur in the first position. (excludes also +++1 etc) + if {[tcl::string::last - $str] > 0} { + return 0 + } + if {[tcl::string::last + $str] > 0} { + return 0 + } + + #------------------------------------------- + #unclear if a 'digit' includes the type specifiers x b o + #we assume the 0x 0b 0o are NOT counted as digits - as underscores here would seem + #to be likely to cause interop issues with other systems + #(e.g tcl allows 0b1_1 but not 0b_11) + #Most of this structure would be unnecessary if we could rely on string::is::integer understanding underscores (9+?) + #we still need to support earlier Tcl for now though. + + #first rule out any case with more than one underscore in a row + if {[regexp {__} $str]} { + return 0 + } + if {[string index $str 0] eq "_"} { + return 0 + } + set utest [string trimleft $str +-] + #test again for further trick like _+_0xFF + if {[string index $utest 0] eq "_"} { + return 0 + } + if {[string range $utest 0 1] in {0x 0b 0o}} { + set testnum [string range $utest 2 end] + } else { + set testnum $utest + #exclude also things like 0_x 0___b that snuck past our prefix test + if {![string is digit -strict [string map {_ ""} $testnum]]} { + return 0 + } + #assert - only digits and underscores in testnum + #still may have underscores at each end + } + #assert testnum is now the 'digits' portion of a , 0x 0b 0o number + #(+ and - already stripped) + #It may still have chars unsuitable for its type - which will be caught by the string::is::integer test below + if {[string length $testnum] != [string length [string trim $testnum _]]} { + #had non-inner underscores in 'digit' part + return 0 + } + #assert str only has solo inner underscores (if any) between 'digits' + #------------------------------------------- + + set numeric_value [tcl::string::map {_ ""} $str] ;#allow some earlier tcl versions which don't support underscores + #use Tcl's integer check to ensure we don't let things like 3e4 through - which is a float (would need to be 0x3e4 for hex) + if {![tcl::string::is integer -strict $numeric_value]} { + return 0 + } + #!todo - check bounds only based on some config value + #even though Tcl can handle bignums, we won't accept anything outside of toml 1.0 minimum requirements. + #presumably very large numbers would have to be supplied in a toml file as strings. + #Review - toml 1.0 only says that it must handle up to 2^63 - not that this is a max + if {$numeric_value > $::tomlish::max_int} { + return 0 + } + if {$numeric_value < $::tomlish::min_int} { + return 0 + } + } else { + return 0 + } + #Got this far - didn't find anything wrong with it. + return 1 + } + + #test only that the characters in str are valid for the toml specified type 'float'. + proc float_validchars {str} { + set numchars [tcl::string::length $str] + if {[regexp -all {[eE0-9\_\-\+\.]} $str] == $numchars} { + return 1 + } else { + #only allow lower case for these special values - as per Toml 1.0 spec + if {$str ni {inf +inf -inf nan +nan -nan}} { + return 0 + } else { + return 1 + } + } + } + + #note - Tcl's string is double will return true also for the subset of float values which are integers + #This function is to determine whether it matches the Toml float concept - so requires a . or e or E + proc is_float {str} { + #vip greenlight known literals, don't test for case variations - as Toml doesn't allow (whereas Tcl allows Inf NaN etc) + if {$str in {inf +inf -inf nan +nan -nan}} { + return 1 + } + #doorcheck the basics for floatiness vs members of that rival gang - ints + if {![regexp {[.eE]} $str]} { + #could be an integer - which isn't specifically a float for Toml purposes. + return 0 + } + + + #patdown for any contraband chars + set matches [regexp -all {[eE0-9\_\-\+\.]} $str] + if {[tcl::string::length $str] != $matches} { + return 0 + } + + #all characters in legal range + + #A leading zero is ok, but we should disallow multiple leading zeroes (same rules as toml ints) + + #Early Toml spec also disallowed leading zeros in the exponent part(?) + #... this seems less interoperable anyway (some libraries generate leading zeroes in exponents) + #we allow leading zeros in exponents here. + + #Check for leading zeros in main part + #first strip any +, - or _ (just for this test) + set check [tcl::string::map {+ "" - "" _ ""} $str] + set r {([0-9])*} + regexp $r $check intpart ;#intpart holds all numerals before the first .,e or E + set z {([0])*} + regexp $z $intpart leadingzeros + if {[tcl::string::length $leadingzeros] > 1} { + return 0 + } + + #for floats, +,- may occur in multiple places + #e.g -2E-22 +3e34 + #!todo - check bounds ? + + #----------------------------------------- + if {[regexp {__} $str]} { + return 0 + } + if {[string index $str 0] eq "_" || [string index $str end] eq "_"} { + return 0 + } + set utest [string trimleft $str +-] + #test again for further trick like _+_ + if {[string index $utest 0] eq "_"} { + return 0 + } + #----------------------------------------- + + #decimal point, if used must be surrounded by at least one digit on each side + #e.g 3.e+20 also illegal + set dposn [string first . $str] + if {$dposn > -1 } { + set d3 [string range $str $dposn-1 $dposn+1] + if {![string is integer -strict [string index $d3 0]] || ![string is integer -strict [string index $d3 2]]} { + return 0 + } + } + #we've already eliminated leading/trailing underscores + #now ensure each inner underscore is surrounded by digits + if {[regexp {_[^0-9]|[^0-9]_} $str]} { + return 0 + } + + #strip underscores for tcl double check so we can support < tcl 9 versions which didn't allow underscores + set check [tcl::string::map {_ ""} $str] + #string is double accepts inf nan +NaN etc. + if {![tcl::string::is double $check]} { + return 0 + } + + #All good - seems to be a toml-approved float and not an int. + return 1 + } + + #test only that the characters in str are valid for the toml specified type 'datetime'. + proc datetime_validchars {str} { + set numchars [tcl::string::length $str] + if {[regexp -all {[zZtT0-9\-\+\.:]} $str] == $numchars} { + return 1 + } else { + return 0 + } + } + + #review - we + proc is_datetime {str} { + #e.g 1979-05-27 + #e.g 1979-05-27T00:32:00Z + #e.g 1979-05-27 00:32:00-07:00 + #e.g 1979-05-27 00:32:00+10:00 + #e.g 1979-05-27 00:32:00.999999-07:00 + + #review + #minimal datetimes? + # 2024 ok - shortest valid 4 digit year? + # 02:00 ok + # 05-17 ok + if {[string length $str] < 4} { + return 0 + } + + set matches [regexp -all {[zZtT0-9\-\+\.:]} $str] + if {[tcl::string::length $str] == $matches} { + #all characters in legal range + #!todo - use full RFC 3339 parser? + lassign [split $str T] datepart timepart + #!todo - what if the value is 'time only'? + + #Tcl's free-form clock scan (no -format option) is deprecated + # + #if {[catch {clock scan $datepart} err]} { + # puts stderr "tcl clock scan failed err:'$err'" + # return 0 + #} + + #!todo - verify time part is reasonable + } else { + return 0 + } + return 1 + } + + + #*** !doctools + #[list_end] [comment {--- end definitions namespace tomlish::utils ---}] +} + +namespace eval tomlish::parse { + #*** !doctools + #[subsection {Namespace tomlish::parse}] + #[para] + #[list_begin definitions] + + #This is a somewhat curly mix of a statemachine and toml-nesting-stack littered with special cases. + #The code is a pig's-nest - but it should be noted that for example trailing single double quotes in multiline strings are perhaps not so trivial to parse using more standard methods either: + # - e.g some kind of backtracking required if using an ABNF parser? + #I don't know the precise technical name for this sort of parser; probably something like "Dog's Breakfast" + #More seriously, we don't have distinct lex/parse steps - so it is basically a 'fused lexer' or 'scannerless parser' + + #It is also desirable for this system to be useful in 'interactive' use. review - would a separate lexer make this easier or harder? + + #A possible alternative more structured approach might be to use a PEG (Parsing Expression Grammar) + + + variable is_parsing 0 ;#whether we are in the middle of parsing tomlish text + + variable state + # states: + # table-space, itable-space, array-space + # array-value-expected,keyval-value-expected,itable-keyval-value-expected, keyval-syntax, + # quoted-key, squoted-key + # string-state, literal-state, multistring... + # + # notes: + # only the -space states are also 'spaces' ie a container which is pushed/popped on the spacestack + + # + # xxx_value-expected - we also allow for leading whitespace in this state, but once a value is returned we jump to a state based on the containing space. e.g keyval-tail or array-syntax + # + #stateMatrix defines for each state, actions to take for each possible token. + #single-element actions are the name of the next state into which to transition, or a 'POPSPACE' instruction to pop a level off the spacestack and add the data to the parent container. + #dual-element actions are a push instruction and the name of the space to push on the stack. + # - PUSHSPACE is a simple push onto the spacestack, zeropoppushspace also pushes, but will first do a pop *if* the current space level is greater than zero (ie if only if not already in root table-space) + + # -- --- --- --- --- --- + #token/state naming guide + # -- --- --- --- --- --- + #tokens : underscore separated or bare name e.g newline, start_quote, start_squote + #private tokens: always have a leading underscore (These are private 'temporary state' tokens that are never returned as actual tokens e.g _start_squote_sequence + #states : always contain at least one dash e.g err-state, table-space + #instructions + # -- --- --- --- --- --- + + + #stateMatrix dict of elements mapping current state to next state based on returned tokens + # current-state {token-encountered next-state ... } + # where next-state can be a 1 or 2 element list. + #If 2 element - the first item is an instruction (ucase) + #If 1 element - it is either a lowercase dashed state name or an ucase instruction + #e.g {PUSHSPACE } or POPSPACE or SAMESPACE + + + #SAMESPACE - got to same space as parent without popping a level, but has it's own autotransition lookup - strange concept - review usecases + + variable stateMatrix + set stateMatrix [dict create] + + #xxx-space vs xxx-syntax inadequately documented - TODO + + #review - out of date? + # --------------------------------------------------------------------------------------------------------------# + # incomplete example of some state starting at table-space + # --------------------------------------------------------------------------------------------------------------# + # ( = -> keyval-value-expected) + # keyval-syntax (popped -> keyval-space -> keyval-tail) (autotransition on pop) + # keyval-space (autotransition on push ^) + # table-space (barekey^) (startdquote -> dquoted-key ^) + # --------------------------------------------------------------------------------------------------------------# + + dict set stateMatrix\ + table-space { + bom "table-space"\ + whitespace "table-space"\ + newline "table-space"\ + barekey {PUSHSPACE "keyval-space" state "keyval-syntax"}\ + squotedkey {PUSHSPACE "keyval-space" state "keyval-syntax" note ""}\ + dquotedkey {PUSHSPACE "keyval-space" state "keyval-syntax"}\ + XXXstartquote "quoted-key"\ + XXXstartsquote "squoted-key"\ + comment "table-space"\ + starttablename "tablename-state"\ + starttablearrayname "tablearrayname-state"\ + startmultiquote "err-state"\ + endquote "err-state"\ + comma "err-state"\ + eof "end-state"\ + equal "err-state"\ + cr "err-lonecr"\ + } + + #itable-space/ curly-syntax : itables + dict set stateMatrix\ + itable-space {\ + whitespace "itable-space"\ + newline "itable-space"\ + barekey {PUSHSPACE "itable-keyval-space" state "itable-keyval-syntax"}\ + squotedkey {PUSHSPACE "itable-keyval-space" state "itable-keyval-syntax"}\ + dquotedkey {PUSHSPACE "itable-keyval-space" state "itable-keyval-syntax"}\ + endinlinetable "POPSPACE"\ + XXXstartquote "quoted-key"\ + XXXstartsquote {TOSTATE "squoted-key" comment "jn-testing"}\ + comma "err-state"\ + comment "itable-space"\ + eof "err-state"\ + } + #squote_seq_begin {PUSHSPACE "leading-squote-space" returnstate itable-space starttok {squote_seq "'"}} + + + dict set stateMatrix\ + keyval-space {\ + whitespace "keyval-syntax"\ + equal "keyval-value-expected"\ + } + + # ' = ' portion of keyval + dict set stateMatrix\ + keyval-syntax {\ + whitespace "keyval-syntax"\ + barekey {PUSHSPACE "dottedkey-space"}\ + squotedkey {PUSHSPACE "dottedkey-space"}\ + dquotedkey {PUSHSPACE "dottedkey-space"}\ + equal "keyval-value-expected"\ + comma "err-state"\ + newline "err-state"\ + eof "err-state"\ + } + #### + dict set stateMatrix\ + keyval-value-expected {\ + whitespace "keyval-value-expected"\ + untyped_value {TOSTATE "keyval-tail" note ""}\ + startquote {TOSTATE "string-state" returnstate keyval-tail}\ + startmultiquote {PUSHSPACE "multistring-space" returnstate keyval-tail}\ + squote_seq_begin {PUSHSPACE "leading-squote-space" returnstate keyval-value-expected starttok {squote_seq "'"}}\ + startsquote {TOSTATE "literal-state" returnstate keyval-tail note "usual way a literal is triggered"}\ + double_squote {TOSTATE "keyval-tail" note "empty literal received when double squote occurs"}\ + triple_squote {PUSHSPACE "multiliteral-space" returnstate keyval-tail}\ + startinlinetable {PUSHSPACE itable-space returnstate keyval-tail}\ + startarray {PUSHSPACE array-space returnstate keyval-tail}\ + } + #squote_seq_begin {PUSHSPACE "leading-squote-space" returnstate keyval-process-leading-squotes starttok {squote_seq "'"}} + dict set stateMatrix\ + leading-squote-space {\ + squote_seq "POPSPACE"\ + } + #dict set stateMatrix\ + # keyval-process-leading-squotes {\ + # startsquote "literal-state"\ + # triple_squote {PUSHSPACE "multiliteral-space" returnstate keyval-tail}\ + # } + + dict set stateMatrix\ + keyval-tail {\ + whitespace "keyval-tail"\ + newline "POPSPACE"\ + comment "keyval-tail"\ + eof "end-state"\ + } + + dict set stateMatrix\ + itable-keyval-syntax {\ + whitespace "itable-keyval-syntax"\ + barekey {PUSHSPACE "dottedkey-space"}\ + squotedkey {PUSHSPACE "dottedkey-space"}\ + dquotedkey {PUSHSPACE "dottedkey-space"}\ + equal "itable-keyval-value-expected"\ + newline "err-state"\ + eof "err-state"\ + } + dict set stateMatrix\ + itable-keyval-value-expected {\ + whitespace "itable-keyval-value-expected"\ + untyped_value {TOSTATE "itable-val-tail" note ""}\ + startquote {TOSTATE "string-state" returnstate itable-val-tail}\ + startmultiquote {PUSHSPACE "multistring-space" returnstate itable-val-tail}\ + squote_seq_begin {PUSHSPACE "leading-squote-space" returnstate itable-keyval-value-expected starttok {squote_seq "'"}}\ + startsquote {TOSTATE "literal-state" returnstate itable-val-tail note "usual way a literal is triggered"}\ + double_squote {TOSTATE "itable-val-tail" note "empty literal received when double squote occurs"}\ + triple_squote {PUSHSPACE "multiliteral-space" returnstate itable-val-tail}\ + startinlinetable {PUSHSPACE "itable-space" returnstate itable-val-tail}\ + startarray {PUSHSPACE "array-space" returnstate itable-val-tail}\ + } + dict set stateMatrix\ + itable-keyval-space {\ + whitespace "itable-keyval-syntax"\ + equal {TOSTATE "itable-keyval-value-expected" note "required"}\ + } + + dict set stateMatrix\ + itable-val-tail {\ + whitespace "itable-val-tail"\ + endinlinetable "POPSPACE"\ + comma "POPSPACE"\ + XXXnewline {TOSTATE "itable-val-tail" note "itable-space ??"}\ + newline "POPSPACE"\ + comment "itable-val-tail"\ + eof "err-state"\ + } + #dict set stateMatrix\ + # itable-quoted-key {\ + # whitespace "NA"\ + # itablequotedkey {PUSHSPACE "itable-keyval-space"}\ + # newline "err-state"\ + # endquote "itable-keyval-syntax"\ + # } + #dict set stateMatrix\ + # itable-squoted-key {\ + # whitespace "NA"\ + # itablesquotedkey {PUSHSPACE "itable-keyval-space"}\ + # newline "err-state"\ + # endsquote "itable-keyval-syntax"\ + # } + + + + + #array-value-expected ? + dict set stateMatrix\ + XXXvalue-expected {\ + whitespace "value-expected"\ + untyped_value {"SAMESPACE" "" replay untyped_value}\ + startquote "string-state"\ + startsquote "literal-state"\ + triple_squote {PUSHSPACE "multiliteral-space"}\ + startmultiquote {PUSHSPACE "multistring-space"}\ + startinlinetable {PUSHSPACE itable-space}\ + startarray {PUSHSPACE array-space}\ + comment "err-state-value-expected-got-comment"\ + comma "err-state"\ + newline "err-state"\ + eof "err-state"\ + } + #note comment token should never be delivered to array-value-expected state? + + #dottedkey-space is not (currently) used within [tablename] or [[tablearrayname]] + #it is for keyval ie x.y.z = value + + #this is the state after dot + #we are expecting a complete key token or whitespace + #(initial entry to the space is by one of the keys - which will immediately go to dottedkey-space-tail) + dict set stateMatrix\ + dottedkey-space {\ + whitespace "dottedkey-space"\ + dotsep "err-state"\ + barekey "dottedkey-space-tail"\ + squotedkey "dottedkey-space-tail"\ + dquotedkey "dottedkey-space-tail"\ + newline "err-state"\ + comma "err-state"\ + comment "err-state"\ + equal "err-state"\ + } + #dottedkeyend "POPSPACE" + #equal "POPSPACE"\ + + #jmn 2025 + #we have 1 or more dottedkeys so far - need dotsep to add more, whitespace to maintain, equal to pop + dict set stateMatrix\ + dottedkey-space-tail {\ + whitespace "dottedkey-space-tail" + dotsep "dottedkey-space" + equal "POPSPACE"\ + } + + #-------------------------------------------------------------------------- + #scratch area + #from_toml {x=1} + # barekey tok + # table-space PUSHSPACE keyval-space state keyval-syntax + # + + + #-------------------------------------------------------------------------- + + + #REVIEW + #toml spec looks like heading towards allowing newlines within inline tables + #https://github.com/toml-lang/toml/issues/781 + + #2025 - appears to be valid for 1.1 - which we are targeting. + #https://github.com/toml-lang/toml/blob/main/toml.md#inline-table + + #JMN2025 + #dict set stateMatrix\ + # curly-syntax {\ + # whitespace "curly-syntax"\ + # newline "curly-syntax"\ + # barekey {PUSHSPACE "itable-keyval-space"}\ + # itablequotedkey "itable-keyval-space"\ + # endinlinetable "POPSPACE"\ + # startquote "itable-quoted-key"\ + # comma "itable-space"\ + # comment "itable-space"\ + # eof "err-state"\ + # } + #review comment "err-state" vs comment "itable-space" - see if TOML 1.1 comes out and allows comments in multiline ITABLES + #We currently allow multiline ITABLES (also with comments) in the tokenizer. + #if we want to disallow as per TOML 1.0 - we should do so when attempting to get structure? + + + #JMN REVIEW + #dict set stateMatrix\ + # array-space {\ + # whitespace "array-space"\ + # newline "array-space"\ + # untyped_value "SAMESPACE"\ + # startarray {PUSHSPACE "array-space"}\ + # endarray "POPSPACE"\ + # startmultiquote {PUSHSPACE multistring-space}\ + # startinlinetable {PUSHSPACE itable-space}\ + # startquote "string-state"\ + # startsquote "literal-state"\ + # triple_squote {PUSHSPACE "multiliteral-space" returnstate array-syntax note "seems ok 2024"}\ + # comma "array-space"\ + # comment "array-space"\ + # eof "err-state-array-space-got-eof"\ + # } + + ## array-space ## + set aspace [dict create] + dict set aspace whitespace "array-space" + dict set aspace newline "array-space" + dict set aspace untyped_value "SAMESPACE" + dict set aspace startarray {PUSHSPACE "array-space"} + dict set aspace endarray "POPSPACE" + dict set aspace startmultiquote {PUSHSPACE multistring-space} + dict set aspace startinlinetable {PUSHSPACE itable-space} + dict set aspace startquote "string-state" + dict set aspace startsquote "literal-state" + dict set aspace triple_squote {PUSHSPACE "multiliteral-space" returnstate array-syntax note "seems ok 2024"} + dict set aspace comma "array-space" + dict set aspace comment "array-space" + dict set aspace eof "err-state-array-space-got-eof" + dict set stateMatrix array-space $aspace + + #when we pop from an inner array we get to array-syntax + #e.g {x=[[]] ??? + set tarntail [dict create] + dict set tarntail whitespace "tablearrayname-tail" + dict set tarntail newline "err-state" + dict set tarntail comment "err-state" + dict set tarntail eof "err-state" + dict set tarntail endtablename "tablearray-tail" + dict set stateMatrix tablearrayname-tail $tarntail + + #review - somewhat counterintuitive...? + # [(starttablearrayname) (endtablearrayname] + # [(starttablename) (endtablename)] + + # [[xxx]] ??? + set tartail [dict create] + dict set tartail whitespace "tablearray-tail" + dict set tartail newline "table-space" + dict set tartail comment "tablearray-tail" + dict set tartail eof "end-state" + dict set stateMatrix tablearray-tail $tartail + + + + + + + dict set stateMatrix\ + end-state {} + + set knowntokens [list] + set knownstates [list] + dict for {state transitions} $stateMatrix { + if {$state ni $knownstates} {lappend knownstates $state} + dict for {tok instructions} $transitions { + if {$tok ni $knowntokens} {lappend knowntokens $tok} + } + } + dict set stateMatrix nostate {} + foreach tok $knowntokens { + dict set stateMatrix nostate $tok "err-nostate-received-token-$tok" + } + + + # -- --- --- --- --- --- --- --- --- --- --- --- --- --- --- + #purpose - debugging? remove? + # -- --- --- --- --- --- --- --- --- --- --- --- --- --- --- + #build a list of 'push triggers' from the stateMatrix + # ie tokens which can push a new space onto spacestack + set push_trigger_tokens [list] + tcl::dict::for {s transitions} $stateMatrix { + tcl::dict::for {token transition_to} $transitions { + set instruction [lindex $transition_to 0] + switch -exact -- $instruction { + PUSHSPACE - zeropoppushspace { + if {$token ni $push_trigger_tokens} { + lappend push_trigger_tokens $token + } + } + } + } + } + ::tomlish::log::debug "push_trigger_tokens: $push_trigger_tokens" + # -- --- --- --- --- --- --- --- --- --- --- --- --- --- --- + + + + #This seems hacky... (deprecate in favour of explicit arguments to the instructions in stateMatrix?) + #spacePopTransitions, spacePushTransitions, spaceSameTransitions below for auto state redirections on POPSPACE,PUSHSPACE,SAMESPACE + + #mainly for the -space states: + #redirect to another state $c based on a state transition from $whatever to $b + # e.g "string {array-space array-syntax}" means when transitioning from string to array-space, jump to array-syntax instead. + #this is useful as we often don't know state $b. e.g when it is decided by 'POPSPACE' + + #use dict set to add values so we can easily add/remove/comment lines + + #Push to, next + #default first states when we push to these spaces + variable spacePushTransitions [dict create] + dict set spacePushTransitions keyval-space keyval-syntax + dict set spacePushTransitions itable-keyval-space itable-keyval-syntax + dict set spacePushTransitions array-space array-space + dict set spacePushTransitions table-space tablename-state + dict set spacePushTransitions #itable-space itable-space + + #Pop to, next + variable spacePopTransitions [dict create] + dict set spacePopTransitions array-space array-syntax + + + #itable-space curly-syntax + #itable-keyval-space itable-val-tail + #review + #we pop to keyval-space from dottedkey-space or from keyval-value-expected? we don't always want to go to keyval-tail + #leave it out and make the POPSPACE caller explicitly specify it + #keyval-space keyval-tail + + variable spaceSameTransitions [dict create] + #JMN test + #dict set spaceSameTransitions array-space array-syntax + + #itable-space curly-syntax + #itable-keyval-space itable-val-tail + + + variable state_list ;#reset every tomlish::decode::toml + + namespace export tomlish toml + namespace ensemble create + + #goNextState has various side-effects e.g pushes and pops spacestack + #REVIEW - setting nest and v elements here is ugly + #todo - make neater, more single-purpose? + proc goNextState {tokentype tok currentstate} { + variable state + variable nest + variable v + + set prevstate $currentstate + + + variable spacePopTransitions + variable spacePushTransitions + variable spaceSameTransitions + + variable last_space_action "none" + variable last_space_type "none" + variable state_list + + set result "" + set starttok "" + + if {[dict exists $::tomlish::parse::stateMatrix $currentstate $tokentype]} { + set transition_to [dict get $::tomlish::parse::stateMatrix $currentstate $tokentype] + ::tomlish::log::debug "--->> goNextState tokentype:$tokentype tok:$tok currentstate:$currentstate : transition_to = $transition_to" + switch -exact -- [lindex $transition_to 0] { + POPSPACE { + spacestack pop + set parent_info [spacestack peek] + set type [dict get $parent_info type] + set parentspace [dict get $parent_info state] + + set last_space_action "pop" + set last_space_type $type + + if {[dict exists $parent_info returnstate]} { + set next [dict get $parent_info returnstate] + #clear the returnstate on current level + set existing [spacestack pop] + dict unset existing returnstate + spacestack push $existing ;#re-push modification + ::tomlish::log::info "--->> POPSPACE transition to parent space $parentspace redirected to stored returnstate $next <<---" + } else { + ### + #review - do away with spacePopTransitions - which although useful to provide a default.. + # - involve error-prone configurations distant to the main state transition configuration in stateMatrix + if {[dict exists $::tomlish::parse::spacePopTransitions $parentspace]} { + set next [dict get $::tomlish::parse::spacePopTransitions $parentspace] + ::tomlish::log::info "--->> POPSPACE transition to parent space $parentspace redirected state to $next (spacePopTransitions)<<---" + } else { + set next $parentspace + ::tomlish::log::info "--->> POPSPACE transition to parent space $parentspace<<---" + } + } + set result $next + } + SAMESPACE { + set currentspace_info [spacestack peek] + ::tomlish::log::debug "--->> SAMESPACE got current space entry: $currentspace_info <<<<<" + set type [dict get $currentspace_info type] + set currentspace [dict get $currentspace_info state] + + if {[dict exists $currentspace_info returnstate]} { + set next [dict get $currentspace_info returnstate] + #clear the returnstate on current level + set existing [spacestack pop] + dict unset existing returnstate + spacestack push $existing ;#re-push modification + ::tomlish::log::info "--->> SAMESPACE transition to space $currentspace redirected to stored returnstate $next" + } else { + if {[dict exists $::tomlish::parse::spaceSameTransitions $currentspace]} { + set next [dict get $::tomlish::parse::spaceSameTransitions $currentspace] + ::tomlish::log::info "--->> SAMESPACE transition to space $currentspace redirected state to $next (spaceSameTransitions)" + } else { + set next $currentspace + ::tomlish::log::info "--->> SAMESPACE transition to space $currentspace" + } + } + set result $next + } + zeropoppushspace { + if {$nest > 0} { + #pop back down to the root level (table-space) + spacestack pop + set parentinfo [spacestack peek] + set type [dict get $parentinfo type] + set target [dict get $parentinfo state] + + set last_space_action "pop" + set last_space_type $type + + #----- + #standard pop + set parentlevel [expr {$nest -1}] + lappend v($parentlevel) [set v($nest)] + incr nest -1 + #----- + } + #re-entrancy + + #set next [list PUSHSPACE [lindex $transition_to 1]] + set nexttokentype ${tokentype}2 ;#fake token type e.g tablename2 or tablearrayname2 + #::tomlish::log::notice "goNextState REENTRANCY. calling goNextState $nexttokentype $tokentype" + #set result [::tomlish::parse::goNextState $nexttokentype $tokentype] + ::tomlish::log::debug "--->> zeropoppushspace goNextState REENTRANCY. calling goNextState $nexttokentype $currentstate" + set transition_info [::tomlish::parse::goNextState $nexttokentype $tok $currentstate] + set result [dict get $transition_info newstate] + } + PUSHSPACE { + set original_target [dict get $transition_to PUSHSPACE] + if {[dict exists $transition_to returnstate]} { + #adjust the existing space record on the stack. + #struct::stack doesn't really support that - so we have to pop and re-push + #todo - investigate a custom stack implementation where we can efficiently lset the top of the stack + set currentspace [spacestack pop] + dict set currentspace returnstate [dict get $transition_to returnstate] + spacestack push $currentspace ;#return modified info to stack so when we POPSPACE the returnstate is available. + } + if {[dict exists $transition_to starttok]} { + set starttok [dict get $transition_to starttok] + } + spacestack push [dict create type space state $original_target] + + set last_space_action "push" + set last_space_type "space" + + if {[dict exists $transition_to state]} { + #an explicit state in the pushed space was requested in the stateMatrix - override the spacePushTransition (spacePushTransitions can be deprecated if we require explicitness?) + set next [dict get $transition_to state] + ::tomlish::log::info "--->> PUSHSPACE transition to space $original_target redirected state to $next by explicit 'state' entry" + } else { + #puts $::tomlish::parse::spacePushTransitions + if {[dict exists $::tomlish::parse::spacePushTransitions $original_target]} { + set next [dict get $::tomlish::parse::spacePushTransitions $original_target] + ::tomlish::log::info "--->> PUSHSPACE transition to space $original_target redirected state to $next (spacePushTransitions) " + } else { + set next $original_target + ::tomlish::log::info "--->> PUSHSPACE transition to space $original_target" + } + } + set result $next + } + TOSTATE { + if {[dict exists $transition_to returnstate]} { + #adjust the existing space record on the stack. + #struct::stack doesn't really support that - so we have to pop and re-push + #todo - investigate a custom stack implementation where we can efficiently lset the top of the stack + set currentspace [spacestack pop] + dict set currentspace returnstate [dict get $transition_to returnstate] + spacestack push $currentspace ;#return modified info to stack so when we POPSPACE the returnstate is available. + } + set result [dict get $transition_to TOSTATE] + } + default { + #simplified version of TOSTATE + set result [lindex $transition_to 0] ;#ignore everything but first word + } + } + } else { + ::tomlish::log::error "--->> No state transition defined from state $currentstate when tokentype $tokentype received" + set result "nostate" + } + lappend state_list [list tokentype $tokentype from $currentstate to $result] + set state $result + ::tomlish::log::notice "--->> STATE TRANSITION tokenType: '$tokentype' tok:$tok triggering '$currentstate' -> '$result' last_space_action:$last_space_action " + return [dict create prevstate $prevstate newstate $result space_action $last_space_action starttok $starttok] + } + + proc report_line {{line ""}} { + variable linenum + variable is_parsing + if {$is_parsing} { + if {$line eq ""} { + set line $linenum + } + return "Line Number: $line" + } else { + #not in the middle of parsing tomlish text - return nothing. + return "" + } + } + + #produce a *slightly* more readable string rep of the nest for puts etc. + proc nest_pretty1 {list} { + set prettier "{" + + foreach el $list { + if { [lindex $el 0] eq "NEWLINE"} { + append prettier "[list $el]\n" + } elseif {([llength $el] > 1) && ([lindex $el 0] in {KEY DQKEY SQKEY TABLE ARRAY})} { + append prettier [nest_pretty1 $el] + } else { + append prettier "[list $el] " + } + } + append prettier "}" + return $prettier + } + + proc set_tokenType {t} { + variable tokenType + variable tokenType_list + if {![info exists tokenType]} { + set tokenType "" + } + lappend tokenType_list $t + set tokenType $t + } + + proc switch_tokenType {t} { + variable tokenType + variable tokenType_list + lset tokenType_list end $t + set tokenType $t + } + + proc get_tokenType {} { + variable tokenType + return $tokenType + } + + proc _shortcircuit_startquotesequence {} { + variable tok + variable i + set toklen [tcl::string::length $tok] + if {$toklen == 1} { + set_tokenType "startquote" + incr i -1 + return -level 2 1 + } elseif {$toklen == 2} { + puts stderr "_shortcircuit_startquotesequence toklen 2" + set_tokenType "startquote" + set tok "\"" + incr i -2 + return -level 2 1 + } + } + + proc get_token_waiting {} { + variable token_waiting + return [lindex $token_waiting 0] + } + proc clear_token_waiting {} { + variable token_waiting + set token_waiting [list] + } + + #token_waiting is a list - but our standard case is to have only one + #in certain circumstances such as near eof we may have 2 + #the set_token_waiting function only allows setting when there is not already one waiting. + #we want to catch cases of inadvertently trying to set multiple + # - the reason being that the state transition triggered by the previous token may have invalidated the assumptions made when a token was added as waiting. + proc set_token_waiting {args} { + if {[llength $args] %2 != 0} { + error "tomlish set_token_waiting must have args of form: type value complete 0|1" + } + variable token_waiting + + if {[llength $token_waiting] && [dict get [lindex $token_waiting end] type] ne "eof"} { + #tokloop already set a token_waiting - but something (post tokloop processing?) is trying to set another + #we may need to remove the existing token_waiting and reset the tokloop index to the previous char so it's reprocessed in the possibly new context + #rather than attempt to make the right decision here - we raise an error and require the caller to check/handle it + set err "tomlish set_token_waiting already has token_waiting: [lindex $token_waiting 0]" + append err \n " - cannot add token_waiting: $args" + error $err + #set tomlish::parse::i [expr {[dict get $token_waiting startindex] -1}] + #set token_waiting [list] + } + + set waiting [dict create] + dict for {k v} $args { + switch -exact $k { + type - complete { + dict set waiting $k $v + } + value { + dict set waiting tok $v + } + startindex { + dict set waiting startindex $v + } + default { + error "tomlish set_token_waiting error - unrecognised key $k. known keys: [dict keys $args]" + } + } + } + if {![tcl::string::is boolean -strict [dict get $waiting complete]]} { + error "tomlish set_token_waiting error - 'complete' must be a boolean. got [dict get $waiting complete]" + } + if {![llength $token_waiting]} { + set token_waiting [list $waiting] + } else { + #an extra sanity-check that we don't have more than just the eof.. + if {[llength $token_waiting] > 1} { + set err "tomlish Unexpected. Existing token_waiting count > 1.\n" + foreach tw $token_waiting { + append err " $tw" \n + } + append err " - cannot add token_waiting: $waiting" + error $err + } + #last entry must be a waiting eof + set token_waiting [list $waiting [lindex $token_waiting end]] + } + return + } + + #returns 0 or 1 + #tomlish::parse::tok + #we attempt to do this without lookahead (potential use in streaming toml? for what benefit?) todo -final flag + # - the possible benefit is being able to more easily process in arbitrarily split chunks (although we would still have to watch crlf splitting ?) + # - interactive use? + + proc tok {s} { + variable nest + variable v + variable i + variable tok + variable type ;#character type + variable state ;#FSM + + + variable tokenType + variable tokenType_list + + + variable endToken + + variable lastChar + + variable braceCount + variable bracketCount + + + #------------------------------ + #Previous run found another (presumably single-char) token + #The normal case is for there to be only one dict in the list + #multiple is an exception - primarily for eof + variable token_waiting + if {[llength $token_waiting]} { + set waiting [lindex $token_waiting 0] + + set tokenType [dict get $waiting type] + set tok [dict get $waiting tok] + #todo: dict get $token_waiting complete + set token_waiting [lrange $token_waiting 1 end] + return 1 + } + #------------------------------ + + set resultlist [list] + set sLen [tcl::string::length $s] + + set slash_active 0 + set quote 0 + set c "" + set multi_dquote "" + for {} {$i < $sLen} {} { + if {$i > 0} { + set lastChar [tcl::string::index $s [expr {$i - 1}]] + } else { + set lastChar "" + } + + set c [tcl::string::index $s $i] + set cindex $i + set ctest [tcl::string::map {\{ lc \} rc \[ lb \] rb \" dq ' sq \\ bsl \r cr \n lf \t tab \uFEFF bom} $c] + tomlish::log::debug "- tokloop char <$ctest> index $i tokenType:$tokenType tok:<$tok>" + #puts "got char $c during tokenType '$tokenType'" + incr i ;#must incr here because we do returns inside the loop + + switch -exact -- $ctest { + # { + set dquotes $multi_dquote + set multi_dquote "" + set had_slash $slash_active + set slash_active 0 + + if {$had_slash} {append tok "\\"} ;#if tokentype not appropriate for \, we would already have errored out. + + if {[tcl::string::length $tokenType]} { + switch -exact -- $tokenType { + squote_seq { + incr i -1 + return 1 + } + startquotesequence { + _shortcircuit_startquotesequence + } + _start_squote_sequence { + incr i -[tcl::string::length $tok] + set_tokenType "startsquote" + return 1 + } + barekey { + error "tomlish Unexpected character '$c' during bare key. Only \[a-zA-Z0-9_-\] and a selection of letter-like chars allowed (see tomlish::utils::is_barekey). [tomlish::parse::report_line]" + } + whitespace { + # hash marks end of whitespace token + #do a return for the whitespace, set token_waiting + #set_token_waiting type comment value "" complete 1 + incr i -1 ;#leave comment for next run + return 1 + } + untyped_value { + #REVIEW! the spec isn't clear.. is whitespace after an int,bool etc required before comment? + #we will accept a comment marker as an immediate terminator of the untyped_value. + incr i -1 + return 1 + } + starttablename - starttablearrayname { + #fix! + error "tomlish Character '#' is invalid first character for $tokenType. [tomlish::parse::report_line]" + } + tablename - tablearrayname { + #invalid in bare parts - but allowed in quoted parts - let tablename parser sort it out + append tok $c + } + default { + #dquotedkey, itablequotedkey, string,literal, multistring + append tok $c + } + } + } else { + switch -- $state { + multistring-space { + set_tokenType stringpart + set tok "" + if {$had_slash} { + append tok "\\" + } + append tok "$dquotes#" + } + multiliteral-space { + set_tokenType "literalpart" + set tok "#" + } + default { + #start of token if we're not in a token + set_tokenType comment + set tok "" ;#The hash is not part of the comment data + } + } + } + } + lc { + #left curly brace + set dquotes $multi_dquote + set multi_dquote "" + set had_slash $slash_active + set slash_active 0 + + if {[tcl::string::length $tokenType]} { + switch -exact -- $tokenType { + squote_seq { + incr i -1 + return 1 + } + startquotesequence { + _shortcircuit_startquotesequence + } + _start_squote_sequence { + incr i -[tcl::string::length $tok] + set_tokenType "startsquote" + return 1 + } + literal - literalpart - squotedkey { + append tok $c + } + string - dquotedkey { + if {$had_slash} {append tok "\\"} + append tok $c + } + stringpart { + if {$had_slash} {append tok "\\"} + append tok $dquotes$c + } + starttablename - starttablearrayname { + #*bare* tablename can only contain letters,digits underscores + error "tomlish Invalid tablename first character \{ [tomlish::parse::report_line]" + } + tablename - tablearrayname { + #valid in quoted parts + append tok $c + } + comment { + if {$had_slash} {append tok "\\"} + append tok "\{" + } + default { + #end any other token. + incr i -1 + return 1 + } + } + } else { + switch -exact -- $state { + itable-keyval-value-expected - keyval-value-expected { + #switch last key to tablename?? + set_tokenType "startinlinetable" + set tok "\{" + return 1 + } + array-space - array-syntax { + #nested anonymous inline table + set_tokenType "startinlinetable" + set tok "\{" + return 1 + } + table-space { + #invalid - but allow parser statemachine to report it. ? + set_tokenType "startinlinetable" + set tok "\{" + return 1 + } + multistring-space { + set_tokenType "stringpart" + set tok "" + if {$had_slash} { + append tok "\\" + } + append tok "$dquotes\{" + } + multiliteral-space { + set_tokenType "literalpart" + set tok "\{" + } + default { + error "tomlish state: '$state'. left brace case not implemented [tomlish::parse::report_line]" + } + } + } + + } + rc { + #right curly brace + set dquotes $multi_dquote + set multi_dquote "" + set had_slash $slash_active + set slash_active 0 + + if {[tcl::string::length $tokenType]} { + switch -exact -- $tokenType { + squote_seq { + incr i -1 + return 1 + } + startquotesequence { + _shortcircuit_startquotesequence + } + _start_squote_sequence { + incr i -[tcl::string::length $tok] + set_tokenType "startsquote" + return 1 + } + literal - literalpart - squotedkey { + append tok $c + } + XXXitablesquotedkey { + } + string - dquotedkey - itablequotedkey - comment { + if {$had_slash} {append tok "\\"} + append tok $c + } + stringpart { + if {$had_slash} {append tok "\\"} + append tok $dquotes$c + } + starttablename - tablename { + if {$had_slash} {append tok "\\"} + #invalid! - but leave for datastructure loading stage to catch + set_token_waiting type endinlinetable value "" complete 1 startindex $cindex + return 1 + } + starttablearrayname - tablearrayname { + if {$had_slash} {append tok "\\"} + #invalid! - but leave for datastructure loading stage to catch + set_token_waiting type endtablearrayname value "" complete 1 startindex $cindex + return 1 + } + default { + #end any other token + incr i -1 + return 1 + } + } + } else { + #$slash_active not relevant when no tokenType + switch -exact -- $state { + table-space { + #invalid - but allow parser statemachine to report it. ? + set_tokenType "endinlinetable" + set tok "\}" + return 1 + } + itable-space { + set_tokenType "endinlinetable" + set tok "\}" + return 1 + } + tablename-state { + #e.g [] - empty tablename - allowed or not? + #empty tablename/tablearrayname ? + #error "unexpected tablename problem" + + set_tokenType "endinlinetable" + set tok "" ;#no output into the tomlish list for this token + return 1 + } + tablearrayname-state { + error "tomlish unexpected tablearrayname-state problem" + set_tokenType "endinlinetable" + set tok "" ;#no output into the tomlish list for this token + return 1 + } + array-syntax - array-space { + #invalid + set_tokenType "endinlinetable" + set tok "\}" + return 1 + } + itable-val-tail { + set_tokenType "endinlinetable" + set tok "" + #we need to pop the keyval - and then reprocess to pop the inlinetable - so we incr -1 + incr i -1 + return 1 + } + itable-keyval-syntax { + error "tomlish endinlinetable unexpected at this point. Expecting key=val syntax [tomlish::parse::report_line]" + } + multistring-space { + set_tokenType "stringpart" + set tok "" + if {$had_slash} { + append tok "\\" + } + append tok "$dquotes\}" + } + multiliteral-space { + set_tokenType "literalpart" ; #review + set tok "\}" + } + default { + #JMN2024b keyval-tail? + error "tomlish state '$state'. endinlinetable case not implemented [tomlish::parse::report_line]" + } + } + } + + } + lb { + #left square bracket + set dquotes $multi_dquote + set multi_dquote "" + set had_slash $slash_active + set slash_active 0 + + if {[tcl::string::length $tokenType]} { + switch -exact -- $tokenType { + squote_seq { + incr i -1 + return 1 + } + startquotesequence { + _shortcircuit_startquotesequence + } + _start_squote_sequence { + incr i -[tcl::string::length $tok] + set_tokenType "startsquote" + return 1 + } + literal - literalpart - squotedkey { + append tok $c + } + string - dquotedkey - itablequotedkey { + if {$had_slash} {append tok "\\"} + append tok $c + } + stringpart { + if {$had_slash} {append tok "\\"} + append tok $dquotes$c + } + starttablename { + #change the tokenType + switch_tokenType "starttablearrayname" + set tok "" ;#no output into the tomlish list for this token + #any following whitespace is part of the tablearrayname, so return now + return 1 + } + tablename - tablearrayname { + #e.g a."x[0]".c is valid table name sequence - so we need to track quoting to know if rb is an end token + if {$had_slash} { + #resultant tablename may be invalid - but leave for datastructure loading stage to catch + #append tok "\\[" + append tok {\[} + } else { + if {[tomlish::utils::tok_in_quotedpart $tok] eq ""} { + #invalid at this point - state machine should disallow: + # table -> starttablearrayname + # tablearray -> starttablearrayname + set_token_waiting type starttablearrayname value "" complete 1 startindex $cindex + return 1 + } else { + #we appear to still be in single or double quoted section + append tok "\[" + } + } + } + comment { + if {$had_slash} {append tok "\\"} + append tok "\[" + } + default { + #end any other token. + incr i -1 + return 1 + } + } + } else { + #$slash_active not relevant when no tokenType + switch -exact -- $state { + keyval-value-expected - itable-keyval-value-expected { + set_tokenType "startarray" + set tok "\[" + return 1 + } + array-space - array-syntax { + #nested array? + set_tokenType "startarray" + set tok "\[" + return 1 + #error "state: array-space. startarray case not implemented [tomlish::parse::report_line]" + } + table-space { + #table name + #assume it's a single bracket - but we need to wait for non-bracket to confirm it's not a tablearray + #note that a starttablearrayname token may contain whitespace between the brackets + # e.g \[ \[ + set_tokenType "starttablename" + set tok "" ;#there is no output into the tomlish list for this token + } + multistring-space { + set_tokenType "stringpart" + set tok "" + if {$had_slash} { + append tok "\\" + } + append tok "$dquotes\[" + } + multiliteral-space { + set_tokenType "literalpart" + set tok "\[" + } + itable-space { + #handle state just to give specific error msg + error "tomlish state: '$state'. Left square bracket invalid. Cannot start array in inline table without key. Use key=\[\] syntax. [tomlish::parse::report_line]" + } + default { + error "tomlish state: '$state'. startarray case not implemented [tomlish::parse::report_line]" + } + } + } + } + rb { + #right square bracket + set dquotes $multi_dquote + set multi_dquote "" + set had_slash $slash_active + set slash_active 0 + + if {[tcl::string::length $tokenType]} { + switch -exact -- $tokenType { + squote_seq { + incr i -1 + return 1 + } + startquotesequence { + _shortcircuit_startquotesequence + } + _start_squote_sequence { + incr i -[tcl::string::length $tok] + set_tokenType "startsquote" + return 1 + } + literal - literalpart - squotedkey { + append tok $c + } + XXXitablesquotedkey { + } + string - dquotedkey - itablequotedkey { + if {$had_slash} {append tok "\\"} + append tok $c + } + stringpart { + if {$had_slash} {append tok "\\"} + append tok $dquotes$c + } + comment { + if {$had_slash} {append tok "\\"} + append tok $c + } + whitespace { + if {$state eq "multistring-space"} { + #???? + incr i -1 + if {$had_slash} {incr i -1} ;#reprocess + return 1 + } else { + incr i -1 + if {$had_slash} {incr i -1} ;#reprocess + return 1 + } + } + tablename { + #e.g a."x[0]".c is valid table name sequence - so we need to track quoting to know if rb is an end token + if {$had_slash} { + #resultant tablename may be invalid - but leave for datastructure loading stage to catch + append tok "\\]" + } else { + if {[tomlish::utils::tok_in_quotedpart $tok] eq ""} { + set_token_waiting type endtablename value "" complete 1 startindex $cindex + return 1 + } else { + #we appear to still be in single or double quoted section + append tok "]" + } + } + } + tablearrayname { + #e.g a."x[0]".c is valid table name sequence - so we need to track quoting to know if rb is an end token + if {$had_slash} { + #resultant tablename may be invalid - but leave for datastructure loading stage to catch + append tok "\\]" + } else { + if {[tomlish::utils::tok_in_quotedpart $tok] eq ""} { + set_token_waiting type endtablearrayname value "" complete 1 startindex $cindex + return 1 + } else { + #we appear to still be in single or double quoted section + append tok "]" + } + } + } + XXXtablearraynames { + puts "rb @ tablearraynames ??" + #switch? + + #todo? + if {$had_slash} {append tok "\\"} + #invalid! - but leave for datastructure loading stage to catch + set_token_waiting type endtablearrayname value "" complete 1 startindex $cindex + return 1 + } + default { + incr i -1 + return 1 + } + } + } else { + #$slash_active not relevant when no tokenType + switch -exact -- $state { + array-syntax - array-space { + #invalid - but allow parser statemachine to report it. + set_tokenType "endarray" + set tok "\]" + return 1 + } + table-space { + #invalid - but allow parser statemachine to report it. ? + set_tokenType "endarray" + set tok "\]" + return 1 + } + tablename-state { + #e.g [] - empty tablename - allowed or not? + #empty tablename/tablearrayname ? + #error "unexpected tablename problem" + + set_tokenType "endtablename" + set tok "" ;#no output into the tomlish list for this token + return 1 + } + tablearrayname-state { + error "tomlish unexpected tablearrayname problem" + set_tokenType "endtablearray" + set tok "" ;#no output into the tomlish list for this token + return 1 + } + tablearrayname-tail { + #[[xxx] + set_tokenType "endtablename" + #sequence: starttablename -> starttablearrayname -> endtablearrayname -> endtablename + return 1 + } + multistring-space { + set_tokenType "stringpart" + set tok "" + if {$had_slash} { + append tok "\\" + } + append tok "$dquotes\]" + } + multiliteral-space { + set_tokenType "literalpart" + set tok "\]" + } + default { + error "tomlish state '$state'. endarray case not implemented [tomlish::parse::report_line]" + } + } + } + } + bsl { + set dquotes $multi_dquote + set multi_dquote "" ;#!! + #backslash + if {[tcl::string::length $tokenType]} { + switch -exact -- $tokenType { + squote_seq { + incr i -1 + return 1 + } + startquotesequence { + _shortcircuit_startquotesequence + } + _start_squote_sequence { + incr i -[tcl::string::length $tok] + set_tokenType "startsquote" + return 1 + } + whitespace { + if {$state eq "multistring-space"} { + #end whitespace token + incr i -1 ;#reprocess bsl in next run + return 1 + } else { + error "tomlish Unexpected backslash during whitespace. [tomlish::parse::report_line]" + } + } + literal - literalpart - squotedkey { + #never need to set slash_active true when in single quoted tokens + append tok "\\" + set slash_active 0 + } + XXXitablesquotedkey { + } + string - dquotedkey - itablequotedkey - comment { + if {$slash_active} { + set slash_active 0 + append tok "\\\\" + } else { + set slash_active 1 + } + } + stringpart { + if {$slash_active} { + #assert - quotes empty - or we wouldn't have slash_active + set slash_active 0 + append tok "\\\\" + } else { + append tok $dquotes + set slash_active 1 + } + } + starttablename - starttablearrayname { + error "tomlish backslash is invalid as first character of $tokenType [tomlish::parse::report_line]" + } + tablename - tablearrayname { + if {$slash_active} { + set slash_active 0 + append tok "\\\\" + } else { + set slash_active 1 + } + } + barekey { + error "tomlish Unexpected backslash during barekey. [tomlish::parse::report_line]" + } + default { + error "tomlish Backslash unexpected during tokentype: '$tokenType'. [tomlish::parse::report_line]" + } + } + } else { + switch -exact -- $state { + multistring-space { + if {$slash_active} { + set_tokenType "stringpart" + set tok "\\\\" + set slash_active 0 + } else { + if {$dquotes ne ""} { + set_tokenType "stringpart" + set tok $dquotes + } + set slash_active 1 + } + } + multiliteral-space { + #nothing can be escaped in multiliteral-space - not even squotes (?) review + set_tokenType "literalpart" + set tok "\\" + } + default { + error "tomlish tok error: Unexpected backslash when no token is active. [tomlish::parse::report_line]" + } + } + } + } + sq { + #single quote + set had_slash $slash_active + set slash_active 0 + if {[tcl::string::length $tokenType]} { + switch -exact -- $tokenType { + squote_seq { + #short squote_seq tokens are returned if active during any other character + #longest allowable for leading/trailing are returned here + #### + set existingtoklen [tcl::string::length $tok] ;#toklen prior to this squote + switch -- $state { + leading-squote-space { + append tok $c + if {$existingtoklen > 2} { + error "tomlish tok error: squote_seq unexpected length $existingtoklen when another received" + } elseif {$existingtoklen == 2} { + return 1 ;#return tok ''' + } + } + trailing-squote-space { + append tok $c + if {$existingtoklen == 4} { + #maxlen to be an squote_seq is multisquote + 2 = 5 + #return tok ''''' + return 1 + } + } + default { + error "tomlish tok error: squote_seq in unexpected state '$state' - expected leading-squote-space or trailing-squote-space" + } + } + } + whitespace { + #end whitespace + incr i -1 ;#reprocess sq + return 1 + } + startquotesequence { + _shortcircuit_startquotesequence + } + _start_squote_sequence { + #temp token creatable only during value-expected or array-space + switch -- [tcl::string::length $tok] { + 1 { + append tok $c + } + 2 { + #switch? + append tok $c + set_tokenType triple_squote + return 1 + } + default { + error "tomlish unexpected token length [tcl::string::length $tok] in '_start_squote_sequence'" + } + } + } + literal { + #slash_active always false + #terminate the literal + set_token_waiting type endsquote value "'" complete 1 startindex $cindex + return 1 + } + literalpart { + #ended by ''' - but final could be '''' or ''''' (up to 2 squotes allowed directly before ending triple squote sequence) + #todo + # idea: end this literalpart (possibly 'temporarily') + # let the sq be reprocessed in the multiliteral-space to push an end-multiliteral-sequence to state stack + # upon popping end-multiliteral-sequence - stitch quotes back into this literalpart's token (if either too short - or a long ending sequence as shown above) + incr i -1 ;#throw the "'" back to loop - will be added to an squote_seq token for later processing + return 1 + } + XXXitablesquotedkey { + set_token_waiting type endsquote value "'" complete 1 startindex $cindex + return 1 + } + squotedkey { + ### + #set_token_waiting type endsquote value "'" complete 1 + return 1 + } + starttablename - starttablearrayname { + #!!! + incr i -1 + return 1 + } + tablename - tablearrayname { + append tok $c + } + barekey { + #not clear why o'shennanigan shouldn't be a legal barekey - but it seems not to be. + error "tomlish Unexpected single quote during barekey. [tomlish::parse::report_line]" + } + default { + append tok $c + } + } + } else { + switch -exact -- $state { + array-space { + set_tokenType "_start_squote_sequence" + set tok "'" + } + itable-keyval-value-expected - keyval-value-expected { + set_tokenType "squote_seq_begin" + set tok "'" + return 1 + } + table-space { + #tests: squotedkey.test + set_tokenType "squotedkey" + set tok "" + } + itable-space { + #tests: squotedkey_itable.test + set_tokenType "squotedkey" + set tok "" + } + XXXitable-space { + #future - could there be multiline keys? + #this would allow arbitrary tcl dicts to be stored in toml + #probably unlikely - as it's perhaps not very 'minimal' or ergonomic for config files + set_tokenType "squote_seq_begin" + set tok "'" + return 1 + } + tablename-state { + #first char in tablename-state/tablearrayname-state + set_tokenType tablename + append tok "'" + } + tablearrayname-state { + set_tokenType tablearrayname + append tok "'" + } + literal-state { + tomlish::log::debug "- tokloop sq during literal-state with no tokentype - empty literal?" + set_tokenType literal + incr -1 + return 1 + } + multistring-space { + error "tomlish unimplemented - squote during state '$state'. [tomlish::parse::report_line]" + } + multiliteral-space { + #each literalpart is not necessarily started/ended with squotes - but may contain up to 2 in a row + #we are building up an squote_seq to determine if + #a) it is shorter than ''' so belongs in a literalpart (either previous, subsequent or it's own literalpart between newlines + #b) it is exactly ''' and we can terminate the whole multiliteral + #c) it is 4 or 5 squotes where the first 1 or 2 beling in a literalpart and the trailing 3 terminate the space + set_tokenType "squote_seq_begin" + set tok "'" + return 1 + } + dottedkey-space { + set_tokenType squotedkey + } + default { + error "tomlish unhandled squote during state '$state'. [tomlish::parse::report_line]" + } + } + } + + } + dq { + #double quote + set had_slash $slash_active + set slash_active 0 + + if {[tcl::string::length $tokenType]} { + switch -exact -- $tokenType { + squote_seq { + incr i -1 + return 1 + } + startquotesequence { + set toklen [tcl::string::length $tok] + if {$toklen == 1} { + append tok $c + } elseif {$toklen == 2} { + append tok $c + #switch vs set? + set_tokenType "startmultiquote" + return 1 + } else { + error "tomlish unexpected token length $toklen in 'startquotesequence'" + } + } + _start_squote_sequence { + incr i -[tcl::string::length $tok] + set_tokenType "startsquote" + return 1 + + #set toklen [tcl::string::length $tok] + #switch -- $toklen { + # 1 { + # set_tokenType "startsquote" + # incr i -1 + # return 1 + # } + # 2 { + # set_tokenType "startsquote" + # incr i -2 + # return 1 + # } + # default { + # error "tomlish unexpected _start_squote_sequence length $toklen" + # } + #} + } + literal - literalpart { + append tok $c + } + string { + if {$had_slash} { + append tok "\\" $c + } else { + #unescaped quote always terminates a string? + set_token_waiting type endquote value "\"" complete 1 startindex $cindex + return 1 + } + } + stringpart { + #sub element of multistring + if {$had_slash} { + append tok "\\" $c + } else { + #incr i -1 + + if {$multi_dquote eq "\"\""} { + set_token_waiting type endmultiquote value "\"\"\"" complete 1 startindex [expr {$cindex -2}] + set multi_dquote "" + return 1 + } else { + append multi_dquote "\"" + } + } + } + whitespace { + switch -exact -- $state { + multistring-space { + #REVIEW + if {$had_slash} { + incr i -2 + return 1 + } else { + switch -- [tcl::string::length $multi_dquote] { + 2 { + set_token_waiting type endmultiquote value "\"\"\"" complete 1 startindex [expr {$cindex-2}] + set multi_dquote "" + return 1 + } + 1 { + incr i -2 + return 1 + } + 0 { + incr i -1 + return 1 + } + } + } + } + keyval-value-expected { + #end whitespace token and reprocess + incr i -1 + return 1 + + #if {$multi_dquote eq "\"\""} { + # set_token_waiting type startmultiquote value "\"\"\"" complete 1 + # set multi_dquote "" + # return 1 + #} else { + # #end whitespace token and reprocess + # incr i -1 + # return 1 + #} + } + table-space - itable-space { + incr i -1 + return 1 + } + default { + set_token_waiting type startquote value "\"" complete 1 startindex $cindex + return 1 + } + } + } + comment { + if {$had_slash} {append tok "\\"} + append tok $c + } + XXXdquotedkey - XXXitablequotedkey { + if {$had_slash} { + append tok "\\" + append tok $c + } else { + set_token_waiting type endquote value "\"" complete 1 startindex $cindex + return 1 + } + } + dquotedkey { + ### + if {$had_slash} { + append tok "\\" + append tok $c + } else { + #set_token_waiting type endsquote value "'" complete 1 + return 1 + } + } + squotedkey { + append tok $c + } + tablename - tablearrayname { + if {$had_slash} {append tok "\\"} + append tok $c + } + starttablename - starttablearrayname { + incr i -1 ;## + return 1 + } + default { + error "tomlish got quote during tokenType '$tokenType' [tomlish::parse::report_line]" + } + } + } else { + #$slash_active not relevant when no tokenType + #token is string only if we're expecting a value at this point + switch -exact -- $state { + array-space { + #!? start looking for possible multistartquote + #set_tokenType startquote + #set tok $c + #return 1 + set_tokenType "startquotesequence" ;#one or more quotes in a row - either startquote or multistartquote + set tok $c + } + keyval-value-expected - itable-keyval-value-expected { + set_tokenType "startquotesequence" ;#one or more quotes in a row - either startquote or multistartquote + set tok $c + } + multistring-space { + #TODO - had_slash!!! + #REVIEW + if {$had_slash} { + set_tokenType "stringpart" + set tok "\\\"" + set multi_dquote "" + } else { + if {$multi_dquote eq "\"\""} { + tomlish::log::debug "- tokloop char dq ---> endmultiquote" + set_tokenType "endmultiquote" + set tok "\"\"\"" + return 1 + #set_token_waiting type endmultiquote value "\"\"\"" complete 1 + #set multi_dquote "" + #return 1 + } else { + append multi_dquote "\"" + } + } + } + multiliteral-space { + set_tokenType "literalpart" + set tok "\"" + } + XXXtable-space { + set_tokenType "startquote" + set tok $c + return 1 + } + XXXitable-space { + set_tokenType "startquote" + set tok $c + } + table-space - itable-space { + set_tokenType "dquotedkey" + set tok "" + } + tablename-state { + set_tokenType tablename + set tok $c + } + tablearrayname-state { + set_tokenType tablearrayname + set tok $c + } + dottedkey-space { + set_tokenType dquotedkey + set tok "" + + #only if complex keys become a thing + #set_tokenType dquote_seq_begin + #set tok $c + } + default { + error "tomlish Unexpected quote during state '$state' [tomlish::parse::report_line]" + } + } + } + } + = { + set dquotes $multi_dquote + set multi_dquote "" ;#!! + set had_slash $slash_active + set slash_active 0 + + if {[tcl::string::length $tokenType]} { + switch -exact -- $tokenType { + squote_seq { + incr i -1 + return 1 + } + startquotesequence { + _shortcircuit_startquotesequence + } + _start_squote_sequence { + incr i -[tcl::string::length $tok] + set_tokenType "startsquote" + return 1 + } + literal - literalpart - squotedkey { + #assertion had_slash 0, multi_dquote "" + append tok $c + } + string - comment - dquotedkey - itablequotedkey { + #for these tokenTypes an = is just data. + if {$had_slash} {append tok "\\"} + append tok $c + } + stringpart { + if {$had_slash} {append tok "\\"} + append tok $dquotes$c + } + whitespace { + if {$state eq "multistring-space"} { + set backlen [expr {[tcl::string::length $dquotes] + 1}] + incr i -$backlen + return 1 + } else { + set_token_waiting type equal value = complete 1 startindex $cindex + return 1 + } + } + barekey { + #set_token_waiting type equal value = complete 1 + incr i -1 + return 1 + } + starttablename - starttablearrayname { + error "tomlish Character '=' is invalid first character for $tokenType. [tomlish::parse::report_line]" + } + tablename - tablearrayname { + #invalid in bare name - but valid in quoted parts - leave for tablename parser to sort out + append tok $c + } + default { + error "tomlish unexpected = character during tokentype $tokenType. case not implemented. [tomlish::parse::report_line]" + } + } + } else { + switch -exact -- $state { + multistring-space { + set_tokenType "stringpart" + set tok "" + if {$had_slash} { + append tok "\\" + } + append tok ${dquotes}= + } + multiliteral-space { + set_tokenType "literalpart" + set tok "=" + } + dottedkey-space { + set_tokenType "equal" + set tok "=" + return 1 + } + default { + set_tokenType "equal" + set tok = + return 1 + } + } + } + } + cr { + #REVIEW! + set dquotes $multi_dquote + set multi_dquote "" ;#!! + # \r carriage return + if {$slash_active} {append tok "\\"} ;#if tokentype not appropriate for \, we would already have errored out. + set slash_active 0 + if {[tcl::string::length $tokenType]} { + switch -exact -- $tokenType { + newline { + #we have received a double cr + ::tomlish::log::warn "double cr - will generate cr token. needs testing" + set_tokenType "cr" ;#lone cr token will generally raise an error - but let state machine handle it + incr i -1 + return 1 + } + squote_seq { + incr i -1 + return 1 + } + startquotesequence { + _shortcircuit_startquotesequence + } + _start_squote_sequence { + incr i -[tcl::string::length $tok] + set_tokenType "startsquote" + return 1 + } + literal { + append tok $c + } + literalpart { + #part of MLL string (multi-line literal string) + #we need to split out crlf as a separate NEWLINE to be consistent + ::tomlish::log::warn "literalpart ended by cr - needs testing" + #return literalpart temporarily - allow cr to be reprocessed from multiliteral-space + incr i -1 + return 1 + } + stringpart { + #stringpart is a part of MLB string (multi-line basic string) + #throw back the cr - if followed by lf it will become a {NEWLINE crlf} entry within the MULTISTRING list (e.g between STRINGPART entries) + incr i -1 + return 1 + } + starttablename - starttablearrayname { + error "tomlish Character is invalid first character for $tokenType. [tomlish::parse::report_line]" + } + tablename - tablearrayname { + #could in theory be valid in quoted part of name + #review - might be better just to disallow here + append tok $c + } + whitespace { + #it should technically be part of whitespace if not followed by lf + #but outside of values we are also free to map it to be another NEWLINE instead? REVIEW + incr i -1 + return 1 + } + untyped_value { + incr i -1 + return 1 + } + default { + #!todo - error out if cr inappropriate for tokenType + append tok $c + } + } + } else { + #lf may be appended if next + #review - lone cr as newline? - this is uncommon - but so is lone cr in a string(?) + set_tokenType "newline" + set tok cr + } + } + lf { + # \n newline + set dquotes $multi_dquote + set multi_dquote "" ;#!! + set had_slash $slash_active + set slash_active 0 + if {[tcl::string::length $tokenType]} { + switch -exact -- $tokenType { + newline { + #review + #this lf is the trailing part of a crlf + append tok lf ;#assert we should now have tok "crlf" - as a previous cr is the only way to have an incomplete newline tok + return 1 + } + squote_seq { + incr i -1 + return 1 + } + startquotesequence { + _shortcircuit_startquotesequence + } + _start_squote_sequence { + incr i -[tcl::string::length $tok] + set_tokenType "startsquote" + return 1 + } + literal { + #nl is not allowed *within* a literal - require multiliteral syntax for any literal containing a newline ''' ''' + #even though we terminate the literal without the closing quote here - the token_waiting newline should trigger a state error + set_token_waiting type newline value lf complete 1 startindex $cindex + return 1 + } + literalpart { + #we allow newlines - but store them within the multiliteral as their own element + #This is a legitimate end to the literalpart - but not the whole multiliteral + set_token_waiting type newline value lf complete 1 startindex $cindex + return 1 + } + stringpart { + if {$dquotes ne ""} { + append tok $dquotes + incr i -1 + return 1 + } else { + if {$had_slash} { + #emit the stringpart (return 1), queue the continuation, go back 1 to reprocess the lf (incr i -1) + set_token_waiting type continuation value \\ complete 1 startindex [expr {$cindex-1}] + incr i -1 + return 1 + } else { + set_token_waiting type newline value lf complete 1 startindex $cindex + return 1 + } + } + } + starttablename - tablename - tablearrayname - starttablearrayname { + error "tomlish Character is invalid in $tokenType. [tomlish::parse::report_line]" + } + default { + #newline ends all other tokens. + #note for string: we don't add (raw unescaped) newline to simple string. (must use multi-string for this) + #note for whitespace: + # we will use the convention that \n terminates the current whitespace even if whitespace follows + # ie whitespace is split into separate whitespace tokens at each newline + + #puts "-------------- newline lf during tokenType $tokenType" + set_token_waiting type newline value lf complete 1 startindex $cindex + return 1 + } + } + } else { + switch -exact -- $state { + multistring-space { + if {$had_slash} { + set_tokenType "continuation" + set tok "\\" + incr i -1 + return 1 + } else { + if {$dquotes ne ""} { + #e.g one or 2 quotes just before nl + set_tokenType "stringpart" + set tok $dquotes + incr i -1 + return 1 + } + set_tokenType "newline" + set tok lf + return 1 + } + } + multiliteral-space { + #assert had_slash 0, multi_dquote "" + set_tokenType "newline" + set tok "lf" + return 1 + } + default { + #ignore slash? error? + set_tokenType "newline" + set tok lf + return 1 + } + } + #if {$had_slash} { + # #CONT directly before newline - allows strings_5_byteequivalent test to pass + # set_tokenType "continuation" + # set tok "\\" + # incr i -1 + # return 1 + #} else { + # set_tokenType newline + # set tok lf + # return 1 + #} + } + } + , { + set dquotes $multi_dquote + set multi_dquote "" + set had_slash $slash_active + set slash_active 0 + if {[tcl::string::length $tokenType]} { + switch -exact -- $tokenType { + newline { + #incomplete newline + set_tokenType "cr" + incr i -1 + return 1 + } + squote_seq { + incr i -1 + return 1 + } + startquotesequence { + _shortcircuit_startquotesequence + } + _start_squote_sequence { + incr i -[tcl::string::length $tok] + set_tokenType "startsquote" + return 1 + } + comment - tablename - tablearrayname { + if {$had_slash} {append tok "\\"} + append tok , + } + string - dquotedkey - itablequotedkey { + if {$had_slash} {append tok "\\"} + append tok $c + } + stringpart { + #stringpart can have up to 2 quotes too + if {$had_slash} {append tok "\\"} + append tok $dquotes$c + } + literal - literalpart - squotedkey { + #assert had_slash always 0, multi_dquote "" + append tok $c + } + whitespace { + if {$state eq "multistring-space"} { + set backlen [expr {[tcl::string::length $dquotes] + 1}] + incr i -$backlen + return 1 + } else { + set_token_waiting type comma value "," complete 1 startindex $cindex + return 1 + } + } + default { + set_token_waiting type comma value "," complete 1 startindex $cindex + if {$had_slash} {append tok "\\"} + return 1 + } + } + } else { + switch -exact -- $state { + multistring-space { + set_tokenType "stringpart" + set tok "" + if {$had_slash} {append tok "\\"} + append tok "$dquotes," + } + multiliteral-space { + #assert had_slash 0, multi_dquote "" + set_tokenType "literalpart" + set tok "," + } + default { + set_tokenType "comma" + set tok "," + return 1 + } + } + } + } + . { + set dquotes $multi_dquote + set multi_dquote "" ;#!! + set had_slash $slash_active + set slash_active 0 + if {[tcl::string::length $tokenType]} { + switch -exact -- $tokenType { + newline { + #incomplete newline + set_tokenType "cr" + incr i -1 + return 1 + } + squote_seq { + incr i -1 + return 1 + } + startquotesequence { + _shortcircuit_startquotesequence + } + _start_squote_sequence { + incr i -[tcl::string::length $tok] + set_tokenType "startsquote" + return 1 + } + comment - untyped_value { + if {$had_slash} {append tok "\\"} + append tok $c + } + string - dquotedkey - itablequotedkey { + if {$had_slash} {append tok "\\"} + append tok $c + } + stringpart { + if {$had_slash} {append tok "\\"} + append tok $dquotes$c + } + literal - literalpart - squotedkey { + #assert had_slash always 0, multi_dquote "" + append tok $c + } + whitespace { + switch -exact -- $state { + multistring-space { + set backchars [expr {[tcl::string::length $dquotes] + 1}] + if {$had_slash} { + incr backchars 1 + } + incr i -$backchars + return 1 + } + xxxdottedkey-space { + incr i -1 + return 1 + } + dottedkey-space-tail { + incr i -1 + return 1 + } + default { + error "tomlish Received period during tokenType 'whitespace' [tomlish::parse::report_line]" + } + } + } + starttablename - starttablearrayname { + #This would correspond to an empty table name + error "tomlish Character '.' is not allowed as first character ($tokenType). [tomlish::parse::report_line]" + } + tablename - tablearrayname { + #subtable - split later - review + append tok $c + } + barekey { + #e.g x.y = 1 + #we need to transition the barekey to become a structured table name ??? review + #x is the tablename y is the key + set_token_waiting type dotsep value "." complete 1 startindex $cindex + return 1 + } + default { + error "tomlish Received period during tokenType '$tokenType' [tomlish::parse::report_line]" + #set_token_waiting type period value . complete 1 + #return 1 + } + } + } else { + switch -exact -- $state { + multistring-space { + set_tokenType "stringpart" + set tok "" + if {$had_slash} {append tok "\\"} + append tok "$dquotes." + } + multiliteral-space { + set_tokenType "literalpart" + set tok "." + } + XXXdottedkey-space { + ### obs? + set_tokenType "dotsep" + set tok "." + return 1 + } + dottedkey-space-tail { + ### + set_tokenType "dotsep" + set tok "." + return 1 + } + default { + set_tokenType "untyped_value" + set tok "." + } + } + } + + } + " " { + set dquotes $multi_dquote + set multi_dquote "" ;#!! + if {[tcl::string::length $tokenType]} { + set had_slash $slash_active + set slash_active 0 + switch -exact -- $tokenType { + newline { + #incomplete newline + set_tokenType "cr" + incr i -1 + return 1 + } + squote_seq { + incr i -1 + return 1 + } + startquotesequence { + _shortcircuit_startquotesequence + } + _start_squote_sequence { + incr i -[tcl::string::length $tok] + set_tokenType "startsquote" + return 1 + } + barekey { + #todo had_slash - emit token or error + #whitespace is a terminator for bare keys + #set_token_waiting type whitespace value $c complete 1 + incr i -1 + return 1 + } + untyped_value { + #unquoted values (int,date,float etc) are terminated by whitespace + #set_token_waiting type whitespace value $c complete 1 + incr i -1 + return 1 + } + comment { + if {$had_slash} { + append tok "\\" + } + append tok $dquotes$c + } + string - dquotedkey - itablequotedkey { + if {$had_slash} { append tok "\\" } + append tok $c + } + stringpart { + #for stringpart we store WS separately for ease of processing continuations (CONT stripping) + if {$had_slash} { + #REVIEW + #emit the stringpart - go back to the slash + incr i -2 + return 1 + } else { + #split into STRINGPART aaa WS " " + append tok $dquotes + incr i -1 + return 1 + } + } + literal - literalpart - squotedkey { + append tok $c + } + whitespace { + if {$state eq "multistring-space"} { + if {$dquotes ne ""} { + #end whitespace token + #go back by the number of quotes plus this space char + set backchars [expr {[tcl::string::length $dquotes] + 1}] + incr i -$backchars + return 1 + } else { + append tok $c + } + } else { + append tok $c + } + } + starttablename - starttablearrayname { + incr i -1 + return 1 + } + tablename - tablearrayname { + #include whitespace in the tablename/tablearrayname + #Will need to be normalized upon interpreting the tomlish as a datastructure + append tok $c + } + default { + error "tomlish Received whitespace space during tokenType '$tokenType' [tomlish::parse::report_line]" + } + } + } else { + set had_slash $slash_active + set slash_active 0 + switch -exact -- $state { + tablename-state { + #tablename can have leading,trailing and interspersed whitespace! + #These will not be treated as whitespace tokens, instead forming part of the name. + set_tokenType tablename + set tok "" + if {$had_slash} {append tok "\\"} + append tok $c + } + tablearrayname-state { + set_tokenType tablearrayname + set tok "" + if {$had_slash} {append tok "\\"} + append tok $c + } + multistring-space { + if {$had_slash} { + set_tokenType "continuation" + set tok "\\" + incr i -1 + return 1 + } else { + if {$dquotes ne ""} { + set_tokenType "stringpart" + set tok $dquotes + incr i -1 + return 1 + } + set_tokenType "whitespace" + append tok $c + } + } + multiliteral-space { + set_tokenType "literalpart" + set tok $c + } + default { + if {$had_slash} { + error "tomlish unexpected backslash [tomlish::parse::report_line]" + } + set_tokenType "whitespace" + append tok $c + } + } + } + } + tab { + set dquotes $multi_dquote + set multi_dquote "" ;#!! + + if {[tcl::string::length $tokenType]} { + if {$slash_active} {append tok "\\"} ;#if tokentype not appropriate for \, we would already have errored out (?review) + set slash_active 0 + switch -exact -- $tokenType { + newline { + #incomplete newline + set_tokenType "cr" + incr i -1 + return 1 + } + startquotesequence { + _shortcircuit_startquotesequence + } + _start_squote_sequence { + incr i -[tcl::string::length $tok] + set_tokenType "startsquote" + return 1 + } + barekey { + #whitespace is a terminator for bare keys + incr i -1 + #set_token_waiting type whitespace value $c complete 1 + return 1 + } + untyped_value { + #unquoted values (int,date,float etc) are terminated by whitespace + #set_token_waiting type whitespace value $c complete 1 + incr i -1 + return 1 + } + squotedkey { + append tok $c + } + dquotedkey - string - comment - whitespace { + #REVIEW + append tok $c + } + stringpart { + #for stringpart we store WS separately for ease of processing continuations (CONT stripping) + if {$had_slash} { + #REVIEW + #emit the stringpart - go back to the slash + incr i -2 + return 1 + } else { + #split into STRINGPART aaa WS " " + append tok $dquotes + incr i -1 + return 1 + } + } + literal - literalpart { + append tok $c + } + starttablename - starttablearrayname { + incr i -1 + return 1 + } + tablename - tablearrayname { + #include whitespace in the tablename/tablearrayname + #Will need to be normalized upon interpreting the tomlish as a datastructure + append tok $c + } + default { + error "tomlish Received whitespace tab during tokenType '$tokenType' [tomlish::parse::report_line]" + } + } + } else { + set had_slash $slash_active + if {$slash_active} { + set slash_active 0 + } + switch -exact -- $state { + tablename-state { + #tablename can have leading,trailing and interspersed whitespace! + #These will not be treated as whitespace tokens, instead forming part of the name. + set_tokenType tablename + set tok $c + } + tablearrayname-state { + set_tokenType tablearrayname + set tok $c + } + multistring-space { + if {$had_slash} { + set_tokenType "continuation" + set tok "\\" + incr i -1 + return 1 + } else { + if {$dquotes ne ""} { + set_tokenType stringpart + set tok $dquotes + incr i -1 + return 1 + } else { + set_tokenType whitespace + append tok $c + } + } + } + multiliteral-space { + set_tokenType "literalpart" + set tok $c + } + default { + set_tokenType "whitespace" + append tok $c + } + } + } + } + bom { + #BOM (Byte Order Mark) - ignored by token consumer + if {[tcl::string::length $tokenType]} { + switch -exact -- $tokenType { + _start_squote_sequence { + #assert - tok will be one or two squotes only + incr i -[tcl::string::length $tok] + set_tokenType "startsquote" + return 1 + } + literal - literalpart { + append tok $c + } + default { + set_token_waiting type bom value "\uFEFF" complete 1 startindex $cindex + return 1 + } + } + } else { + switch -exact -- $state { + multiliteral-space { + set_tokenType "literalpart" + set tok $c + } + default { + set_tokenType "bom" + set tok "\uFEFF" + return 1 + } + } + } + } + default { + set dquotes $multi_dquote + set multi_dquote "" ;#!! + + if {[tcl::string::length $tokenType]} { + if {$slash_active} {append tok "\\"} ;#if tokentype not appropriate for \, we would already have errored out. + set slash_active 0 + switch -exact -- $tokenType { + newline { + #incomplete newline + set_tokenType "cr" + incr i -1 + return 1 + } + squote_seq { + incr i -1 + return 1 + } + startquotesequence { + _shortcircuit_startquotesequence + } + _start_squote_sequence { + incr i -[tcl::string::length $tok] + set_tokenType "startsquote" + return 1 + } + whitespace { + if {$state eq "multistring-space"} { + if {$dquotes ne ""} { + set backlen [expr {[tcl::string::length $dquotes] + 1}] + incr i -$backlen + return 1 + } else { + incr i -1 + return 1 + } + } else { + #review + incr i -1 ;#We don't have a full token to add to the token_waiting dict - so leave this char for next run. + return 1 + } + } + barekey { + if {[tomlish::utils::is_barekey $c]} { + append tok $c + } else { + error "tomlish Unexpected character '$c' during bare key. Only \[a-zA-Z0-9_-\] and a selection of letter-like chars allowed. (see tomlish::utils::is_barekey) [tomlish::parse::report_line]" + } + } + starttablename - starttablearrayname { + incr i -1 + #allow statemachine to set context for subsequent chars + return 1 + } + stringpart { + append tok $dquotes$c + } + default { + #e.g comment/string/literal/literalpart/untyped_value/starttablename/starttablearrayname/tablename/tablearrayname + append tok $c + } + } + } else { + set had_slash $slash_active + set slash_active 0 + switch -exact -- $state { + table-space - itable-space { + #if no currently active token - assume another key value pair + if {[tomlish::utils::is_barekey $c]} { + set_tokenType "barekey" + append tok $c + } else { + error "tomlish Unexpected char $c ([tomlish::utils::nonprintable_to_slashu $c]) whilst no active tokenType. [tomlish::parse::report_line]" + } + } + XXXcurly-syntax { + puts stderr "curly-syntax - review" + if {[tomlish::utils::is_barekey $c]} { + set_tokenType "barekey" + append tok $c + } else { + error "tomlish Unexpected char $c ([tomlish::utils::nonprintable_to_slashu $c]) whilst no active tokenType. [tomlish::parse::report_line]" + } + } + multistring-space { + set_tokenType "stringpart" + if {$had_slash} { + #assert - we don't get had_slash and dquotes at same time + set tok \\$c + } else { + set tok $dquotes$c + } + } + multiliteral-space { + set_tokenType "literalpart" + set tok $c + } + tablename-state { + set_tokenType "tablename" + set tok $c + } + tablearrayname-state { + set_tokenType "tablearrayname" + set tok $c + } + dottedkey-space { + set_tokenType barekey + set tok $c + } + default { + #todo - something like ansistring VIEW to show control chars? + set cshow [string map [list \t tab \v vt] $c] + tomlish::log::debug "- tokloop char '$cshow' setting to untyped_value while state:$state [tomlish::parse::report_line]" + set_tokenType "untyped_value" + set tok $c + } + } + } + } + } + + } + + #run out of characters (eof) + if {[tcl::string::length $tokenType]} { + #check for invalid ending tokens + #if {$state eq "err-state"} { + # error "Reached end of data whilst tokenType = '$tokenType'. INVALID" + #} + switch -exact -- $tokenType { + startquotesequence { + set toklen [tcl::string::length $tok] + if {$toklen == 1} { + #invalid + #eof with open string + error "tomlish eof reached without closing quote for string. [tomlish::parse::report_line]" + } elseif {$toklen == 2} { + #valid + #we ended in a double quote, not actually a startquoteseqence - effectively an empty string + switch_tokenType "startquote" + incr i -1 + #set_token_waiting type string value "" complete 1 + return 1 + } + } + _start_squote_sequence { + set toklen [tcl::string::length $tok] + switch -- $toklen { + 1 { + #invalid eof with open literal + error "tomlish eof reached without closing single quote for string literal. [tomlish::parse::report_line]" + } + 2 { + #review + set_token_waiting type endsquote value "'" complete 1 startindex [expr {$cindex -1}] + set_tokenType "literal" + set tok "" + return 1 + } + } + } + newline { + #The only newline token that has still not been returned should have a tok value of "cr" + puts "tomlish eof reached - with incomplete newline token '$tok'" + if {$tok eq "cr"} { + #we convert lone cr to it's own "cr" token elsewhere in the document to allow statemachine to handle it. + #(which it should generally do by not handling it ie raising an error - or emitting an ERROR list in the tomlish) + #if trailing char is a lone cr - we should encode it the same way as elsewhere that is outside of values + # ie as it's own token. + switch_tokenType "cr" + return 1 + } else { + #should be unreachable + error "tomlish eof reached - with invalid newline token. value: $tok" + } + } + } + set_token_waiting type eof value eof complete 1 startindex $i ;#review + return 1 + } else { + ::tomlish::log::debug "- No current tokenType, ran out of characters, setting tokenType to 'eof' [tomlish::parse::report_line]" + set tokenType "eof" + set tok "eof" + } + return 0 + } + + #*** !doctools + #[list_end] [comment {--- end definitions namespace tomlish::parse ---}] +} + +namespace eval tomlish::dict { + namespace export {[a-z]*}; # Convention: export all lowercase + namespace path [namespace parent] + + proc is_tomlish_typeval {d} { + #designed to detect {type value } e.g {type INT value 3}, {type STRING value "blah etc"} + #as a sanity check we need to avoid mistaking user data that happens to match same form + #consider x.y={type="spud",value="blah"} + #The value of type will itself have already been converted to {type STRING value spud} ie never a single element. + #check the length of the type as a quick way to see it's a tag - not something else masqerading. + expr {[dict size $d] == 2 && [dict exists $d type] && [dict exists $d value] && [llength [dict get $d type]] == 1} + } + proc is_tomlish_typeval2 {d} { + upvar ::tomlish::tags tags + expr {[lindex $d 0] eq "type" && [lindex $d 1] in $tags} + } + proc last_tomltype_posn {d} { + set last_simple -1 + set dictposn [expr {[dict size $d] -1}] + foreach k [lreverse [dict keys $d]] { + set dval [dict get $d $k] + if {[is_tomlish_typeval $dval]} { + set last_simple $dictposn + break + } + incr dictposn -1 + } + return $last_simple + } + + + #review + proc name_from_tablestack {tablestack} { + set name "" + foreach tinfo [lrange $tablestack 1 end] { + lassign $tinfo type namepart + switch -- $type { + T { + if {$name eq ""} { + append name $namepart + } else { + append name .$namepart + } + } + I { + if {$name eq ""} { + append name $namepart + } else { + append name .$namepart + } + } + default { + #end at first break in the leading sequence of T & I tablenames + break + } + } + } + return $name + } + +} + +tcl::namespace::eval tomlish::app { + variable applist [list encoder decoder test] + + #*** !doctools + #[subsection {Namespace tomlish::app}] + #[para] + #[list_begin definitions] + + proc decoder {args} { + #*** !doctools + #[call app::[fun decoder] [arg args]] + #[para] read toml on stdin until EOF + #[para] on error - returns non-zero exit code and writes error on stderr + #[para] on success - returns zero exit code and writes JSON encoding of the data on stdout + #[para] This decoder is intended to be compatible with toml-test + + set opts [dict merge [dict create] $args] + #fconfigure stdin -encoding utf-8 + fconfigure stdin -translation binary + #Just slurp it all - presumably we are not handling massive amounts of data on stdin. + # - even if the input is large, we probably don't gain much (aside from possible memory savings?) by attempting to process input as it arrives. + if {[catch { + set toml [read stdin] + }]} { + exit 2 ;#read error + } + try { + set j [::tomlish::toml_to_json $toml] + } on error {em} { + puts stderr "decoding failed: '$em'" + exit 1 + } + puts -nonewline stdout $j + exit 0 + } + + proc encoder {args} { + #*** !doctools + #[call app::[fun encoder] [arg args]] + #[para] read JSON on stdin until EOF + #[para] return non-zero exitcode if JSON data cannot be converted to a valid TOML representation + #[para] return zero exitcode and TOML data on stdout if JSON data can be converted. + #[para] This encoder is intended to be compatible with toml-test + + set opts [dict merge [dict create] $args] + fconfigure stdin -translation binary + if {[catch { + set json [read stdin] + }]} { + exit 2 ;#read error + } + try { + set toml [::tomlish::json_to_toml $json] + } on error {em} { + puts stderr "encoding failed: '$em'" + exit 1 + } + puts -nonewline stdout $toml + exit 0 + } + + proc test {args} { + set opts [dict merge [dict create] $args] + + package require test::tomlish + if {[dict exists $opts -suite]} { + test::tomlish::suite [dict get $opts -suite] + } + test::tomlish::run + } + + + #*** !doctools + #[list_end] [comment {--- end definitions namespace tomlish::app ---}] +} + +proc ::tomlish::appnames {} { + set applist [list] + foreach cmd [info commands ::tomlish::app::*] { + lappend applist [namespace tail $cmd] + } + return $applist +} + + +# ++ +++ +++ +++ +++ +++ +++ +++ +++ +++ +++ +# Secondary API namespace +# ++ +++ +++ +++ +++ +++ +++ +++ +++ +++ +++ +namespace eval tomlish::lib { + namespace export {[a-z]*}; # Convention: export all lowercase + namespace path [namespace parent] + #*** !doctools + #[subsection {Namespace tomlish::lib}] + #[para] Secondary functions that are part of the API + #[list_begin definitions] + + #proc utility1 {p1 args} { + # #*** !doctools + # #[call lib::[fun utility1] [arg p1] [opt {?option value...?}]] + # #[para]Description of utility1 + # return 1 + #} + + + + #*** !doctools + #[list_end] [comment {--- end definitions namespace tomlish::lib ---}] +} +# ++ +++ +++ +++ +++ +++ +++ +++ +++ +++ +++ + +if {$argc > 0} { + puts stderr "argc: $argc args: $argv" + + if {($argc == 1)} { + if {[tcl::string::tolower $argv] in {help -help h -h}} { + puts stdout "Usage: -app where appname one of:[tomlish::appnames]" + exit 0 + } else { + puts stderr "Argument '$argv' not understood. Try -help" + exit 1 + } + } + set opts [dict create] + set opts [dict merge $opts $argv] + + set opts_understood [list -app ] + if {"-app" in [dict keys $opts]} { + #Don't vet the remaining opts - as they are interpreted by each app + } else { + foreach key [dict keys $opts] { + if {$key ni $opts_understood} { + puts stderr "Option '$key' not understood" + exit 1 + } + } + } + if {[dict exists $opts -app]} { + set app [dict get $opts -app] + if {$app ni [tomlish::appnames]} { + puts stderr "app '[dict get $opts -app]' not found" + exit 1 + } + tomlish::app::$app {*}$opts + } +} + +## Ready +package provide tomlish [namespace eval tomlish { + variable pkg tomlish + variable version + set version 1.1.4 +}] +return + +#*** !doctools +#[manpage_end] + diff --git a/src/project_layouts/custom/_project/punk.shell-0.1/src/bootsupport/modules/test/tomlish-1.1.3.tm b/src/project_layouts/custom/_project/punk.shell-0.1/src/bootsupport/modules/test/tomlish-1.1.3.tm index 08ec371d..ed5044a7 100644 Binary files a/src/project_layouts/custom/_project/punk.shell-0.1/src/bootsupport/modules/test/tomlish-1.1.3.tm and b/src/project_layouts/custom/_project/punk.shell-0.1/src/bootsupport/modules/test/tomlish-1.1.3.tm differ diff --git a/src/project_layouts/custom/_project/punk.shell-0.1/src/bootsupport/modules/tomlish-1.1.4.tm b/src/project_layouts/custom/_project/punk.shell-0.1/src/bootsupport/modules/tomlish-1.1.4.tm new file mode 100644 index 00000000..7a6d5205 --- /dev/null +++ b/src/project_layouts/custom/_project/punk.shell-0.1/src/bootsupport/modules/tomlish-1.1.4.tm @@ -0,0 +1,6172 @@ +# -*- tcl -*- +# Maintenance Instruction: leave the 999999.xxx.x as is and use 'pmix make' or src/make.tcl to update from -buildversion.txt +# +# Please consider using a BSD or MIT style license for greatest compatibility with the Tcl ecosystem. +# Code using preferred Tcl licenses can be eligible for inclusion in Tcllib, Tklib and the punk package repository. +# ++ +++ +++ +++ +++ +++ +++ +++ +++ +++ +++ +# (C) 2024 +# +# @@ Meta Begin +# Application tomlish 1.1.4 +# Meta platform tcl +# Meta license +# @@ Meta End + + +# ++ +++ +++ +++ +++ +++ +++ +++ +++ +++ +++ +# doctools header +# ++ +++ +++ +++ +++ +++ +++ +++ +++ +++ +++ +#*** !doctools +#[manpage_begin tomlish_module_tomlish 0 1.1.4] +#[copyright "2024"] +#[titledesc {tomlish toml parser}] [comment {-- Name section and table of contents description --}] +#[moddesc {tomlish}] [comment {-- Description at end of page heading --}] +#[require tomlish] +#[keywords module parsing toml configuration] +#[description] +#[para] tomlish is an intermediate representation of toml data in a tree structure (tagged lists representing type information) +#[para] The design goals are for tomlish to be whitespace and comment preserving ie byte-for byte preservation during roundtrips from toml to tomlish and back to toml +#[para] The tomlish representation can then be converted to a Tcl dict structure or to other formats such as json, +#[para] although these other formats are generally unlikely to retain whitespace or comments +#[para] The other formats also won't preserve roundtripability e.g \t and a literal tab coming from a toml file will be indistinguishable. +#[para] A further goal is to allow at least a useful subset of in-place editing operations which also preserve whitespace and comments. +#[para] e.g leaf key value editing, and table reordering/sorting, key-renaming at any level, key insertions/deletions +#[para] The API for editing (tomldoc object?) may require explicit setting of type if accessing an existing key +#[para] e.g setting a key that already exists and is a different type (especially if nested structure such as a table or array) +#[para] will need a -type option (-force ?) to force overriding with another type such as an int. + +# ++ +++ +++ +++ +++ +++ +++ +++ +++ +++ +++ + +#*** !doctools +#[section Overview] +#[para] overview of tomlish +#[subsection Concepts] +#[para] - + + +# ++ +++ +++ +++ +++ +++ +++ +++ +++ +++ +++ +## Requirements +# ++ +++ +++ +++ +++ +++ +++ +++ +++ +++ +++ + +#*** !doctools +#[subsection dependencies] +#[para] packages used by tomlish +#[list_begin itemized] + +package require Tcl 8.6- +package require struct::stack +package require logger + +#*** !doctools +#[item] [package {Tcl 8.6-}] +#[item] [package {struct::stack}] + +#limit ourselves to clear, destroy, peek, pop, push, rotate, or size (e.g v 1.3 does not implement 'get') + + +#*** !doctools +#[list_end] + +# ++ +++ +++ +++ +++ +++ +++ +++ +++ +++ +++ + +#*** !doctools +#[section API] + +# ++ +++ +++ +++ +++ +++ +++ +++ +++ +++ +++ + +# ++ +++ +++ +++ +++ +++ +++ +++ +++ +++ +++ +# Base namespace +# ++ +++ +++ +++ +++ +++ +++ +++ +++ +++ +++ +namespace eval tomlish { + namespace export {[a-z]*}; # Convention: export all lowercase + variable types + + #IDEAS: + # since get_toml produces tomlish with whitespace/comments intact: + # tomldoc object - allow (at least basic?) editing of toml whilst preserving comments & whitespace + # - setKey (set leaf only to value) how to specify type? -type option? - whole array vs index into arrays and further nested objects? - option for raw toml additions? + # - separate addKey?? + # - deleteKey (delete leaf) + # - deleteTable (delete table - if only has leaves? - option to delete with child tables?) + # - set/add Table? - position in doc based on existing tables/subtables? + + #The tomlish intermediate representation allows things such as sorting the toml document by table name or other re-ordering of tables - + # because the tables include subkeys, comments and newlines within their structure - those elements all come along with it nicely during reordering. + #The same goes for the first newline following a keyval e.g x=1 \ny=2\n\n + #The newline is part of the keyval structure so makes reordering easier + #example from_toml "a=1\nb=2\n\n\n" + # 0 = TOMLISH + # 1 = KEY a = {INT 1} {NEWLINE lf} + # 2 = NEWLINE lf + # 3 = KEY b = {INT 2} {NEWLINE lf} + # 4 = NEWLINE lf + # 5 = NEWLINE lf + + + #ARRAY is analogous to a Tcl list + #TABLE is analogous to a Tcl dict + #WS = inline whitespace + #KEY = bare key and value + #DQKEY = double quoted key and value + #SQKEY = single quoted key and value + #ITABLE = inline table (*can* be anonymous table) + # inline table values immediately create a table with the opening brace + # inline tables are fully defined between their braces, as are dotted-key subtables defined within + # No additional subtables or arrays of tables may be defined within an inline table after the ending brace - they must be entirely self-contained + + set tags [list TOMLISH ARRAY TABLE ITABLE TABLEARRAY WS NEWLINE COMMENT DOTTEDKEY KEY DQKEY SQKEY STRING STRINGPART MULTISTRING LITERAL LITERALPART MULTILITERAL INT FLOAT BOOL DATETIME] + #removed - ANONTABLE + #tomlish v1.0 should accept arbitrary 64-bit signed ints (from -2^63 to 2^63-1) + #we will restrict to this range for compatibility for now - although Tcl can handle larger (arbitrarily so?) + set min_int -9223372036854775808 ;#-2^63 + set max_int +9223372036854775807 ;#2^63-1 + + proc Dolog {lvl txt} { + #return "$lvl -- $txt" + set msg "[clock format [clock seconds] -format "%Y-%m-%dT%H:%M:%S"] tomlish '$txt'" + puts stderr $msg + } + logger::initNamespace ::tomlish + foreach lvl [logger::levels] { + interp alias {} tomlish_log_$lvl {} ::tomlish::Dolog $lvl + log::logproc $lvl tomlish_log_$lvl + } + + #*** !doctools + #[subsection {Namespace tomlish}] + #[para] Core API functions for tomlish + #[list_begin definitions] + + proc tags {} { + return $::tomlish::tags + } + + #helper function for to_dict + proc _get_keyval_value {keyval_element} { + log::notice ">>> _get_keyval_value from '$keyval_element'<<<" + set found_value 0 + #find the value + # 3 is the earliest index at which the value could occur (depending on whitespace) + set found_sub [list] + if {[lindex $keyval_element 2] ne "="} { + error "tomlish _get_keyval_value keyval_element doesn't seem to be a properly structured { = } list" + } + + #review + if {[uplevel 1 [list info exists tablenames_seen]]} { + upvar tablenames_seen tablenames_seen + } else { + set tablenames_seen [list] ;#list of lists + } + if {[uplevel 1 [list info exists tablenames_closed]]} { + upvar tablenames_closed tablenames_closed + } else { + set tablenames_closed [list] ;#list of lists + } + + foreach sub [lrange $keyval_element 2 end] { + #note that a barekey/dquotedkey won't occur directly inside a barekey/dquotedkey + switch -exact -- [lindex $sub 0] { + STRING - LITERAL - MULTISTRING - MULTILITERAL - INT - FLOAT - BOOL - DATETIME - TABLE - ARRAY - ITABLE { + set type [lindex $sub 0] + set value [lindex $sub 1] + set found_sub $sub + incr found_value 1 + } + default {} + } + } + if {!$found_value} { + error "tomlish Failed to find value element in KEY. '$keyval_element'" + } + if {$found_value > 1} { + error "tomlish Found multiple value elements in KEY, expected exactly one. '$keyval_element'" + } + + switch -exact -- $type { + INT - FLOAT - BOOL - DATETIME { + #simple (non-container, no-substitution) datatype + set result [list type $type value $value] + } + STRING - STRINGPART { + set result [list type $type value [::tomlish::utils::unescape_string $value]] + } + LITERAL - LITERALPART { + #REVIEW + set result [list type $type value $value] + } + TABLE { + #invalid? + error "tomlish _get_keyval_value invalid to have type TABLE on rhs of =" + } + ITABLE { + #This one should not be returned as a type value structure! + # + set result [::tomlish::to_dict [list $found_sub]] + } + ARRAY { + #we need to recurse to get the corresponding dict for the contained item(s) + #pass in the whole $found_sub - not just the $value! + set prev_tablenames_seen $tablenames_seen + set prev_tablenames_closed $tablenames_closed + set tablenames_seen [list] + set tablenames_closed [list] + set result [list type $type value [::tomlish::to_dict [list $found_sub]]] + set tablenames_seen $prev_tablenames_seen + set tablenames_closed $prev_tablenames_closed + } + MULTISTRING - MULTILITERAL { + #review - mapping these to STRING might make some conversions harder? + #if we keep the MULTI - we know we have to look for newlines for example when converting to json + #without specific types we'd have to check every STRING - and lose info about how best to map chars within it + set result [list type $type value [::tomlish::to_dict [list $found_sub]]] + } + default { + error "tomlish Unexpected value type '$type' found in keyval '$keyval_element'" + } + } + return $result + } + + proc _get_dottedkey_info {dottedkeyrecord} { + set key_hierarchy [list] + set key_hierarchy_raw [list] + if {[lindex $dottedkeyrecord 0] ne "DOTTEDKEY"} { + error "tomlish _get_dottedkey_info error. Supplied list doesn't appear to be a DOTTEDKEY (tag: [lindex $dottedkeyrecord 0])" + } + set compoundkeylist [lindex $dottedkeyrecord 1] + set expect_sep 0 + foreach part $compoundkeylist { + set parttag [lindex $part 0] + if {$parttag eq "WS"} { + continue + } + if {$expect_sep} { + if {$parttag ne "DOTSEP"} { + error "DOTTEDKEY missing dot separator between parts. '$dottedkeyrecord'" + } + set expect_sep 0 + } else { + set val [lindex $part 1] + switch -exact -- $parttag { + KEY { + lappend key_hierarchy $val + lappend key_hierarchy_raw $val + } + DQKEY { + lappend key_hierarchy [::tomlish::utils::unescape_string $val] + lappend key_hierarchy_raw \"$val\" + } + SQKEY { + lappend key_hierarchy $val + lappend key_hierarchy_raw "'$val'" + } + default { + error "DOTTED key unexpected part '$parttag' - ensure dot separator is between key parts. '$item'" + } + } + set expect_sep 1 + } + } + return [dict create keys $key_hierarchy keys_raw $key_hierarchy_raw] + } + + + + #to_dict is a *basic* programmatic datastructure for accessing the data. + # produce a dictionary of keys and values from a tomlish tagged list. + # to_dict is primarily for reading toml data. + #Extraneous (not within quoted sections) whitespace and comments are not preserved in this structure, + # so a roundtrip from toml to this datastructure and back to toml will lose whitespace formatting and comments. + # creating/changing toml values can be done directly on a tomlish list if preserving (or adding) formatting/comments is desired. + #A separate package 'tomlish::object' may be needed to allow easier programmatic creating/updating/deleting of data elements whilst preserving (or adding or selectively deleting/editing) such formatting. + # + + #within an ARRAY, we store a list of items such as plain dicts (possibly empty) and {type value } for simple types + #(ARRAYS can be mixed type) + #This means our dict structure should have only ARRAY and simple types which need to be in {type value } form + #A dict within an array encodeded as a type ITABLE value should also parse - but is the unpreferred form - REVIEW test? + + #Namespacing? + #ie note the difference: + #[Data] + #temp = { cpu = 79.5, case = 72.0} + # versus + #[Data] + #temps = [{cpu = 79.5, case = 72.0}] + proc to_dict {tomlish} { + + #keep track of which tablenames have already been directly defined, + # so we can raise an error to satisfy the toml rule: 'You cannot define any key or table more than once. Doing so is invalid' + #Note that [a] and then [a.b] is ok if there are no subkey conflicts - so we are only tracking complete tablenames here. + #we don't error out just because a previous tablename segment has already appeared. + ##variable tablenames_seen [list] + if {[uplevel 1 [list info exists tablenames_seen]]} { + upvar tablenames_seen tablenames_seen + } else { + set tablenames_seen [list] ;#list of lists + } + if {[uplevel 1 [list info exists tablenames_closed]]} { + upvar tablenames_closed tablenames_closed + } else { + set tablenames_closed [list] ;#list of lists + } + + log::info "---> to_dict processing '$tomlish'<<<" + set items $tomlish + + foreach lst $items { + if {[lindex $lst 0] ni $::tomlish::tags} { + error "supplied string does not appear to be toml parsed into a tomlish tagged list. Run tomlish::decode::toml on the raw toml data to produce a tomlish list" + } + } + + if {[lindex $tomlish 0] eq "TOMLISH"} { + #ignore TOMLISH tag at beginning + set items [lrange $tomlish 1 end] + } + + set datastructure [dict create] + foreach item $items { + set tag [lindex $item 0] + #puts "...> item:'$item' tag:'$tag'" + switch -exact -- $tag { + KEY - DQKEY - SQKEY { + log::debug "---> to_dict item: processing $tag: $item" + set key [lindex $item 1] + if {$tag eq "DQKEY"} { + set key [::tomlish::utils::unescape_string $key] + } + #!todo - normalize key. (may be quoted/doublequoted) + + if {[dict exists $datastructure $key]} { + error "Duplicate key '$key'. The key already exists at this level in the toml data. The toml data is not valid." + } + + #lassign [_get_keyval_value $item] type val + set keyval_dict [_get_keyval_value $item] + dict set datastructure $key $keyval_dict + } + DOTTEDKEY { + log::debug "---> to_dict item processing $tag: $item" + set dkey_info [_get_dottedkey_info $item] + set dotted_key_hierarchy [dict get $dkey_info keys] + + #a.b.c = 1 + #table_key_hierarchy -> a b + #leafkey -> c + if {[llength $dotted_key_hierarchy] == 0} { + #empty?? probably invalid. review + #This is different to '' = 1 or ''.'' = 1 which have lengths 1 and 2 respectively + error "DOTTED key has no parts - invalid? '$item'" + } elseif {[llength $dotted_key_hierarchy] == 1} { + #dottedkey is only a key - no table component + set table_hierarchy [list] + set leafkey [lindex $dotted_key_hierarchy 0] + } else { + set table_hierarchy [lrange $dotted_key_hierarchy 0 end-1] + set leafkey [lindex $dotted_key_hierarchy end] + } + + #ensure empty tables are still represented in the datastructure + #review - this seems unnecessary? + set pathkeys [list] + foreach k $table_hierarchy { + lappend pathkeys $k + if {![dict exists $datastructure {*}$pathkeys]} { + dict set datastructure {*}$pathkeys [list] + } else { + tomlish::log::notice "to_dict datastructure at key path $pathkeys already had data: [dict get $datastructure {*}$pathkeys]" + } + } + #review? + if {[dict exists $datastructure {*}$table_hierarchy $leafkey]} { + error "Duplicate key '$table_hierarchy $leafkey'. The key already exists at this level in the toml data. The toml data is not valid." + } + + #JMN test 2025 + if {[llength $table_hierarchy]} { + lappend tablenames_seen $table_hierarchy + } + + set keyval_dict [_get_keyval_value $item] + if {![tomlish::dict::is_tomlish_typeval $keyval_dict]} { + lappend tablenames_seen [list {*}$table_hierarchy $leafkey] + lappend tablenames_closed [list {*}$table_hierarchy $leafkey] + + #review - item is an ITABLE - we recurse here without datastructure context :/ + #overwriting keys? todo ? + dict set datastructure {*}$table_hierarchy $leafkey $keyval_dict + } else { + dict set datastructure {*}$table_hierarchy $leafkey $keyval_dict + } + + } + TABLE { + set tablename [lindex $item 1] + #set tablename [::tomlish::utils::tablename_trim $tablename] + set norm_segments [::tomlish::utils::tablename_split $tablename true] ;#true to normalize + if {$norm_segments in $tablenames_seen} { + error "Table name '$tablename' has already been directly defined in the toml data. Invalid." + } + + log::debug "---> to_dict processing item $tag (name: $tablename): $item" + set name_segments [::tomlish::utils::tablename_split $tablename] ;#unnormalized + set last_seg "" + #toml spec rule - all segments mst be non-empty + #note that the results of tablename_split are 'raw' - ie some segments may be enclosed in single or double quotes. + + set table_key_sublist [list] + + foreach normseg $norm_segments { + lappend table_key_sublist $normseg + if {[dict exists $datastructure {*}$table_key_sublist]} { + #It's ok for this key to already exist *if* it was defined by a previous tablename or equivalent + #and if this key is longer + + #consider the following 2 which are legal: + #[table] + #x.y = 3 + #[table.x.z] + #k= 22 + + #equivalent + + #[table] + #[table.x] + #y = 3 + #[table.x.z] + #k=22 + + #illegal + #[table] + #x.y = 3 + #[table.x.y.z] + #k = 22 + ## - we should fail on encountering table.x.y because only table and table.x are effectively tables + + #illegal + #[table] + #x.y = {p=3} + #[table.x.y.z] + #k = 22 + ## we should fail because y is an inline table which is closed to further entries + + + #note: it is not safe to compare normalized tablenames using join! + # e.g a.'b.c'.d is not the same as a.b.c.d + # instead compare {a b.c d} with {a b c d} + # Here is an example where the number of keys is the same, but they must be compared as a list, not a joined string. + #'a.b'.'c.d.e' vs 'a.b.c'.'d.e' + #we need to normalize the tablenames seen so that {"x\ty"} matches {"xy"} + + set sublist_length [llength $table_key_sublist] + set found_testkey 0 + if {$table_key_sublist in $tablenames_seen} { + set found_testkey 1 + } else { + #see if it was defined by a longer entry + foreach seen_table_segments $tablenames_seen { + if {[llength $seen_table_segments] <= $sublist_length} { + continue + } + #each tablenames_seen entry is already a list of normalized segments + + #we could have [a.b.c.d] early on + # followed by [a.b] - which was still defined by the earlier one. + + set seen_longer [lrange $seen_segments 0 [expr {$sublist_length -1}]] + puts stderr "testkey:'$table_key_sublist' vs seen_match:'$seen_longer'" + if {$table_key_sublist eq $seen_longer} { + set found_testkey 1 + } + } + } + + if {$found_testkey == 0} { + #the raw unnormalized tablename might be ok to display in the error message, although it's not the actual dict keyset + set msg "key $table_key_sublist already exists in datastructure, but wasn't defined by a supertable." + append msg \n "tablenames_seen:" \n + foreach ts $tablenames_seen { + append msg " " $ts \n + } + error $msg + } + } + + } + + #ensure empty tables are still represented in the datastructure + set key_sublist [list] + foreach k $norm_segments { + lappend key_sublist $k + if {![dict exists $datastructure {*}$key_sublist]} { + dict set datastructure {*}$key_sublist [list] + } else { + tomlish::log::notice "to_dict datastructure at (TABLE) subkey $key_sublist already had data: [dict get $datastructure {*}$key_sublist]" + } + } + + #We must do this after the key-collision test above! + lappend tablenames_seen $norm_segments + + + log::debug ">>> to_dict >>>>>>>>>>>>>>>>> normalized table key hierarchy : $norm_segments" + + #now add the contained elements + foreach element [lrange $item 2 end] { + set type [lindex $element 0] + log::debug "----> tododict processing $tag subitem $type processing contained element $element" + switch -exact -- $type { + DOTTEDKEY { + set dkey_info [_get_dottedkey_info $element] + #e.g1 keys {x.y y} keys_raw {'x.y' "a\tb"} keys {x.y {a b}} (keys_raw has escape, keys has literal tab char) + #e.g2 keys {x.y y} keys_raw {{"x.y"} "a\tb"} keys {x.y {a b}} (keys_raw has escape, keys has literal tab char) + set dotted_key_hierarchy [dict get $dkey_info keys] + set dkeys [lrange $dotted_key_hierarchy 0 end-1] + set leaf_key [lindex $dotted_key_hierarchy end] + + #ensure empty keys are still represented in the datastructure + set test_keys $norm_segments + foreach k $dkeys { + lappend test_keys $k + if {![dict exists $datastructure {*}$test_keys]} { + dict set datastructure {*}$test_keys [list] + } else { + tomlish::log::notice "to_dict datastructure at (DOTTEDKEY) subkey $test_keys already had data: [dict get $datastructure {*}$test_keys]" + } + } + + if {[dict exists $datastructure {*}$norm_segments {*}$dkeys $leaf_key]} { + error "Duplicate key '$norm_segments $dkeys $leaf_key'. The key already exists at this level in the toml data. The toml data is not valid." + } + set keyval_dict [_get_keyval_value $element] + #keyval_dict is either a {type value } + #or the result from parsing an arbitrary dict from an inline table - which could theoretically look the same at the topmost level + #punk::dict::is_tomlish_typeval can distinguish + puts stdout "to_dict>>> $keyval_dict" + dict set datastructure {*}$norm_segments {*}$dkeys $leaf_key $keyval_dict + #JMN 2025 + lappend tablenames_seen [list {*}$norm_segments {*}$dkeys] + + if {![tomlish::dict::is_tomlish_typeval $keyval_dict]} { + #the value is either empty or or a dict structure with arbitrary (from-user-data) toplevel keys + # inner structure will contain {type value } if all leaves are not empty ITABLES + lappend tablenames_seen [list {*}$norm_segments {*}$dkeys $leaf_key] + #if the keyval_dict is not a simple type x value y - then it's an inline table ? + #if so - we should add the path to the leaf_key as a closed table too - as it's not allowed to have more entries added. + } + + } + NEWLINE - COMMENT - WS { + #ignore + } + default { + error "Sub element of type '$type' not understood in table context. Expected only KEY,DQKEY,SQKEY,NEWLINE,COMMENT,WS" + } + } + } + #now make sure we add an empty value if there were no contained elements! + #!todo. + } + ITABLE { + #SEP??? + set datastructure [list] + foreach element [lrange $item 1 end] { + set type [lindex $element 0] + log::debug "----> tododict processing $tag subitem $type processing contained element $element" + switch -exact -- $type { + DOTTEDKEY { + set dkey_info [_get_dottedkey_info $element] + set dotted_key_hierarchy [dict get $dkey_info keys] + set leaf_key [lindex $dotted_key_hierarchy end] + set dkeys [lrange $dotted_key_hierarchy 0 end-1] + + #ensure empty keys are still represented in the datastructure + set table_keys [list] ;#We don't know the context - next level up will have to check for key collisions? + set test_keys $table_keys + foreach k $dkeys { + lappend test_keys $k + if {![dict exists $datastructure {*}$test_keys]} { + dict set datastructure {*}$test_keys [list] + } else { + tomlish::log::notice "to_dict datastructure at (DOTTEDKEY) subkey $test_keys already had data: [dict get $datastructure {*}$test_keys]" + } + } + + if {[dict exists $datastructure {*}$table_keys {*}$dkeys $leaf_key]} { + error "Duplicate key '$table_keys $dkeys $leaf_key'. The key already exists at this level in the toml data. The toml data is not valid." + } + set keyval_dict [_get_keyval_value $element] + dict set datastructure {*}$table_keys {*}$dkeys $leaf_key $keyval_dict + } + NEWLINE - COMMENT - WS { + #ignore + } + default { + error "Sub element of type '$type' not understood in ITABLE context. Expected only KEY,DQKEY,SQKEY,NEWLINE,COMMENT,WS" + } + } + } + } + ARRAY { + #arrays in toml are allowed to contain mixtures of types + set datastructure [list] + log::debug "--> processing array: $item" + + foreach element [lrange $item 1 end] { + set type [lindex $element 0] + log::debug "----> tododict processing $tag subitem $type processing contained element $element" + switch -exact -- $type { + INT - FLOAT - BOOL - DATETIME { + set value [lindex $element 1] + lappend datastructure [list type $type value $value] + } + STRING { + set value [lindex $element 1] + lappend datastructure [list type $type value [::tomlish::utils::unescape_string $value]] + } + LITERAL { + set value [lindex $element 1] + lappend datastructure [list type $type value $value] + } + ITABLE { + #anonymous table + #lappend datastructure [list type $type value [::tomlish::to_dict [list $element]]] + lappend datastructure [::tomlish::to_dict [list $element]] ;#store itables within arrays as raw dicts (possibly empty) + } + TABLE { + #invalid? shouldn't be output from from_dict - but could manually be constructed as such? review + #doesn't make sense as table needs a name? + #take as synonym for ITABLE? + error "to_dict TABLE within array unexpected" + } + ARRAY - MULTISTRING - MULTILITERAL { + #set value [lindex $element 1] + lappend datastructure [list type $type value [::tomlish::to_dict [list $element]]] + } + WS - SEP - NEWLINE - COMMENT { + #ignore whitespace, commas, newlines and comments + } + default { + error "Unexpected value type '$type' found in array" + } + } + } + } + MULTILITERAL { + #triple squoted string + #first newline stripped only if it is the very first element + #(ie *immediately* following the opening delims) + #All whitespace other than newlines is within LITERALPARTS + # ------------------------------------------------------------------------- + #todo - consider extension to toml to allow indent-aware multiline literals + # how - propose as issue in toml github? Use different delim? e.g ^^^ ? + #e.g + # xxx=?'''abc + # def + # etc + # ''' + # - we would like to trimleft each line to the column following the opening delim + # ------------------------------------------------------------------------- + + log::debug "---> todict processing multiliteral: $item" + set parts [lrange $item 1 end] + if {[lindex $parts 0 0] eq "NEWLINE"} { + set parts [lrange $parts 1 end] ;#skip it + } + for {set idx 0} {$idx < [llength $parts]} {incr idx} { + set element [lindex $parts $idx] + set type [lindex $element 0] + switch -exact -- $type { + LITERALPART { + append stringvalue [lindex $element 1] + } + NEWLINE { + set val [lindex $element 1] + if {$val eq "nl"} { + append stringvalue \n + } else { + append stringvalue \r\n + } + } + default { + error "Unexpected value type '$type' found in multistring" + } + } + } + set datastructure $stringvalue + } + MULTISTRING { + #triple dquoted string + log::debug "---> to_dict processing multistring: $item" + set stringvalue "" + set idx 0 + set parts [lrange $item 1 end] + for {set idx 0} {$idx < [llength $parts]} {incr idx} { + set element [lindex $parts $idx] + set type [lindex $element 0] + #We use STRINGPART in the tomlish representation as a distinct element to STRING - which would imply wrapping quotes to be reinserted + switch -exact -- $type { + STRING { + #todo - do away with STRING ? + #we don't build MULTISTRINGS containing STRING - but should we accept it? + tomlish::log::warn "double quoting a STRING found in MULTISTRING - should be STRINGPART?" + append stringvalue "\"[::tomlish::utils::unescape_string [lindex $element 1]]\"" + } + STRINGPART { + append stringvalue [::tomlish::utils::unescape_string [lindex $element 1]] + } + CONT { + #When the last non-whitespace character on a line is an unescaped backslash, + #it will be trimmed along with all whitespace (including newlines) up to the next non-whitespace character or closing delimiter + # review - we allow some whitespace in stringpart elements - can a stringpart ever be all whitespace? + set next_nl [lsearch -index 0 -start $idx+1 $parts NEWLINE] + if {$next_nl == -1} { + #last line + set non_ws [lsearch -index 0 -start $idx+1 -not $parts WS] + if {$non_ws >= 0} { + append stringvalue "\\" ;#add the sep + } else { + #skip over ws without emitting + set idx [llength $parts] + } + } else { + set parts_til_nl [lrange $parts 0 $next_nl-1] + set non_ws [lsearch -index 0 -start $idx+1 -not $parts_til_nl WS] + if {$non_ws >= 0} { + append stringvalue "\\" + } else { + #skip over ws on this line + set idx $next_nl + #then have to check each subsequent line until we get to first non-whitespace + set trimming 1 + while {$trimming && $idx < [llength $parts]} { + set next_nl [lsearch -index 0 -start $idx+1 $parts NEWLINE] + if {$next_nl == -1} { + #last line + set non_ws [lsearch -index 0 -start $idx+1 -not $parts WS] + if {$non_ws >= 0} { + set idx [expr {$non_ws -1}] + } else { + set idx [llength $parts] + } + set trimming 0 + } else { + set non_ws [lsearch -index 0 -start $idx+1 -not [lrange $parts 0 $next_nl-1] WS] + if {$non_ws >= 0} { + set idx [expr {$non_ws -1}] + set trimming 0 + } else { + set idx $next_nl + #keep trimming + } + } + } + } + } + } + NEWLINE { + #if newline is first element - it is not part of the data of a multistring + if {$idx > 0} { + set val [lindex $element 1] + if {$val eq "nl"} { + append stringvalue \n + } else { + append stringvalue \r\n + } + } + } + WS { + append stringvalue [lindex $element 1] + } + default { + error "Unexpected value type '$type' found in multistring" + } + } + } + set datastructure $stringvalue + } + WS - COMMENT - NEWLINE { + #ignore + } + default { + error "Unexpected tag '$tag' in Tomlish list '$tomlish'" + } + } + } + return $datastructure + } + + + proc _from_dictval_tomltype {parents tablestack keys typeval} { + set type [dict get $typeval type] + set val [dict get $typeval value] + switch -- $type { + ARRAY { + set subitems [list] + foreach item $val { + lappend subitems [_from_dictval [list {*}$parents ARRAY] $tablestack $keys $item] SEP + } + if {[lindex $subitems end] eq "SEP"} { + set subitems [lrange $subitems 0 end-1] + } + return [list ARRAY {*}$subitems] + } + ITABLE { + if {$val eq ""} { + return ITABLE + } else { + return [_from_dictval [list {*}$parents ITABLE] $tablestack $keys $val] + } + } + MULTISTRING { + #value is a raw string that isn't encoded as tomlish + #create a valid toml snippet with the raw value and decode it to the proper tomlish MULTISTRING format + #We need to convert controls in $val to escape sequences - except for newlines + # + #consider an *option* to reformat for long lines? (perhaps overcomplex - byte equiv - but may fold in ugly places) + #we could use a line-length limit to decide when to put in a "line ending backslash" + #and even format it with a reasonable indent so that proper CONT and WS entries are made (?) REVIEW + # + #TODO + set tomlpart "x=\"\"\"\\\n" + append tomlpart $val "\"\"\"" + set tomlish [tomlish::decode::toml $tomlpart] + #e.g if val = " etc\nblah" + #TOMLISH {DOTTEDKEY {{KEY x}} = {MULTISTRING CONT {NEWLINE LF} {WS { }} {STRINGPART etc} {NEWLINE lf} {STRINGPART blah} } } + #lindex 1 3 is the MULTISTRING tomlish list + return [lindex $tomlish 1 3] + } + MULTILITERAL { + #MLL string can contain newlines - but still no control chars + #todo - validate + set tomlpart "x='''\n" + append tomlpart $val ''' + set tomlish [tomlish::decode::toml $tomlpart] + return [lindex $tomlish 1 3] + } + LITERAL { + #from v1.0 spec - "Control characters other than tab are not permitted in a literal string" + #(This rules out raw ANSI SGR - which is somewhat restrictive - but perhaps justified for a config format + # as copy-pasting ansi to a config value is probably not always wise, and it's not something that can be + # easily input via a text editor. ANSI can go in Basic strings using the \e escape if that's accepted v1.1?) + #we could choose to change the type to another format here when encountering invalid chars - but that seems + #like too much magic. We elect to error out and require the dict to have valid data for the types it specifies. + if {[string first ' $val] >=0} { + error "_from_dictval_tomltype error: single quote found in LITERAL - cannot encode dict to TOML-VALID TOMLISH" + } + #detect control chars other than tab + #for this we can use rawstring_to_Bstring_with_escaped_controls - even though this isn't a Bstring + #we are just using the map to detect a difference. + set testval [tomlish::utils::rawstring_to_Bstring_with_escaped_controls $val] + if {$testval ne $val} { + #some escaping would have to be done if this value was destined for a Bstring... + #therefor this string has controls and isn't suitable for a LITERAL according to the specs. + error "_from_dictval_tomltype error: control chars (other than tab) found in LITERAL value - cannot encode dict to TOML-VALID TOMLISH" + } + return [list LITERAL $val] + } + STRING { + return [list STRING [tomlish::utils::rawstring_to_Bstring_with_escaped_controls $val]] + } + INT { + if {![::tomlish::utils::is_int $val]} { + error "_from_dictval_tomltype error: bad INT value '$val' - cannot encode dict to TOML-VALID TOMLISH" + } + return [list INT $val] + } + FLOAT { + if {![::tomlish::utils::is_float $val]} { + error "_from_dictval_tomltype error: bad FLOAT value '$val' - cannot encode dict to TOML-VALID TOMLISH" + } + return [list FLOAT $val] + } + default { + if {$type ni [::tomlish::tags]} { + error "_from_dictval_tomltype error: Unrecognised typename '$type' in {type value } - cannot encode dict to TOML-VALID TOMLISH" + } + return [list $type $val] + } + } + } + + proc _from_dictval {parents tablestack keys vinfo} { + set k [lindex $keys end] + if {[regexp {\s} $k] || [string first . $k] >= 0} {} + if {![::tomlish::utils::is_barekey $k]} { + #Any dot in the key would have been split by to_dict - so if it's present here it's part of this key - not a level separator! + #requires quoting + #we'll use a basic mechanism for now to determine the type of quoting - whether it has any single quotes or not. + #todo - more? + #For keys - we currently (2025) are only allowed barekeys,basic strings and literal strings. (no multiline forms) + if {[string first ' $k] >=0} { + #basic string + } else { + #literal string + set K_PART [list SQKEY $k] + } + } else { + set K_PART [list KEY $k] + } + puts stderr "---parents:'$parents' keys:'$keys' vinfo: $vinfo---" + puts stderr "---tablestack: $tablestack---" + set result [list] + set lastparent [lindex $parents end] + if {$lastparent in [list "" do_inline]} { + if {[tomlish::dict::is_tomlish_typeval $vinfo]} { + set type [dict get $vinfo type] + #treat ITABLE differently? + set sublist [_from_dictval_tomltype $parents $tablestack $keys $vinfo] + lappend result DOTTEDKEY [list $K_PART {WS { }}] = {WS { }} $sublist {NEWLINE lf} + } else { + #set result [list TABLE $k {NEWLINE lf}] + if {$vinfo ne ""} { + + #set result [list DOTTEDKEY [list [list KEY $k]] = ] + #set records [list ITABLE] + + set last_tomltype_posn [tomlish::dict::last_tomltype_posn $vinfo] + + if {$lastparent eq "do_inline"} { + set result [list DOTTEDKEY [list $K_PART] =] + set records [list ITABLE] + } else { + #review - quoted k ?? + set result [list TABLE $k {NEWLINE lf}] + set tablestack [list {*}$tablestack [list T $k]] + set records [list] + } + + + + set lastidx [expr {[dict size $vinfo] -1}] + set dictidx 0 + dict for {vk vv} $vinfo { + if {[regexp {\s} $vk] || [string first . $vk] >= 0} { + set VK_PART [list SQKEY $vk] + } else { + set VK_PART [list KEY $vk] + } + if {[tomlish::dict::is_tomlish_typeval $vv]} { + #type x value y + set sublist [_from_dictval_tomltype $parents $tablestack $keys $vv] + set record [list DOTTEDKEY [list $VK_PART {WS { }}] = {WS { }} $sublist] + } else { + if {$vv eq ""} { + #experimental + if {[lindex $parents 0] eq "" && $dictidx > $last_tomltype_posn} { + puts stderr "_from_dictval could uninline KEY $vk (tablestack:$tablestack)" + #set tname [tomlish::dict::name_from_tablestack [list {*}$tablestack [list T $vk]]] + set tname [join [list {*}$keys $vk] .] + set record [list TABLE $tname {NEWLINE lf}] + set tablestack [list {*}$tablestack [list T $vk]] + } else { + set record [list DOTTEDKEY [list $VK_PART] = ITABLE] + set tablestack [list {*}$tablestack [list I $vk]] + } + } else { + if { 0 } { + #experiment.. sort of getting there. + if {[lindex $parents 0] eq "" && $dictidx > $last_tomltype_posn} { + puts stderr "_from_dictval could uninline2 KEYS [list {*}$keys $vk] (tablestack:$tablestack)" + set tname [join [list {*}$keys $vk] .] + set record [list TABLE $tname {NEWLINE lf}] + set tablestack [list {*}$tablestack [list T $vk]] + + #review - todo? + set dottedkey_value [_from_dictval [list {*}$parents TABLE] $tablestack [list {*}$keys $vk] $vv] + lappend record {*}$dottedkey_value + + } else { + set dottedkey_value [_from_dictval [list {*}$parents ITABLE] $tablestack [list {*}$keys $vk] $vv] + set record [list DOTTEDKEY [list $VK_PART] = $dottedkey_value] + } + } else { + set dottedkey_value [_from_dictval [list {*}$parents ITABLE] $tablestack [list {*}$keys $vk] $vv] + set record [list DOTTEDKEY [list $VK_PART] = $dottedkey_value] + } + } + } + if {$dictidx != $lastidx} { + #lappend record SEP + if {$lastparent eq "do_inline"} { + lappend record SEP + } else { + lappend record {NEWLINE lf} + } + } + lappend records $record + incr dictidx + } + if {$lastparent eq "do_inline"} { + lappend result $records {NEWLINE lf} + } else { + lappend result {*}$records {NEWLINE lf} + } + } else { + if {$lastparent eq "do_inline"} { + lappend result DOTTEDKEY [list [list KEY $k]] = ITABLE {NEWLINE lf} + } else { + lappend result TABLE $k {NEWLINE lf} + } + } + } + } else { + #lastparent is not toplevel "" or "do_inline" + if {[tomlish::dict::is_tomlish_typeval $vinfo]} { + #type x value y + set sublist [_from_dictval_tomltype $parents $tablestack $keys $vinfo] + lappend result {*}$sublist + } else { + if {$lastparent eq "TABLE"} { + #review + dict for {vk vv} $vinfo { + set dottedkey_value [_from_dictval [list {*}$parents DOTTEDKEY] $tablestack [list {*}$keys $vk] $vv] + lappend result [list DOTTEDKEY [list [list KEY $vk]] = $dottedkey_value {NEWLINE lf}] + } + } else { + if {$vinfo ne ""} { + set lastidx [expr {[dict size $vinfo] -1}] + set dictidx 0 + set sub [list] + #REVIEW + #set result $lastparent ;#e.g sets ITABLE + set result ITABLE + set last_tomltype_posn [tomlish::dict::last_tomltype_posn $vinfo] + dict for {vk vv} $vinfo { + if {[regexp {\s} $vk] || [string first . $vk] >=0} { + set VK_PART [list SQKEY $vk] + } else { + set VK_PART [list KEY $vk] + } + if {[tomlish::dict::is_tomlish_typeval $vv]} { + #type x value y + set sublist [_from_dictval_tomltype $parents $tablestack $keys $vv] + set record [list DOTTEDKEY [list $VK_PART] = $sublist] + } else { + if {$vv eq ""} { + #can't just uninline at this level + #we need a better method to query main dict for uninlinability at each level + # (including what's been inlined already) + #if {[lindex $parents 0] eq "" && $dictidx > $last_tomltype_posn} { + # puts stderr "_from_dictval uninline2 KEY $keys" + # set tname [join [list {*}$keys $vk] .] + # set record [list TABLE $tname {NEWLINE lf}] + # set tablestack [list {*}$tablestack [list T $vk]] + #} else { + set record [list DOTTEDKEY [list $VK_PART] = ITABLE] + #} + } else { + #set sub [_from_dictval ITABLE $vk $vv] + set dottedkey_value [_from_dictval [list {*}$parents ITABLE] $tablestack [list {*}$keys $vk] $vv] + #set record [list DOTTEDKEY [list $VK_PART] = ITABLE $dottedkey_value] + set record [list DOTTEDKEY [list $VK_PART] = $dottedkey_value] + } + } + if {$dictidx != $lastidx} { + lappend record SEP + } + lappend result $record + incr dictidx + } + } else { + puts stderr "table x-1" + lappend result DOTTEDKEY [list $K_PART] = ITABLE + } + } + } + } + return $result + } + + + proc from_dict {d} { + #consider: + # t1={a=1,b=2} + # x = 1 + #If we represent t1 as an expanded table we get + # [t1] + # a=1 + # b=2 + # x=1 + # --- which is incorrect - as x was a toplevel key like t1! + #This issue doesn't occur if x is itself an inline table + # t1={a=1,b=2} + # x= {no="problem"} + # + # (or if we were to reorder x to come before t1) + + #As the dictionary form doesn't distinguish the structure used to create tables {[table1]\nk=v} vs inline {table1={k=v}} + #Without a solution, from_dict would have to always produce the inline form for toplevel tables unless we allowed re-ordering, + #which is unpreferred here. + + #A possible solution: + #scan the top level to see if all (trailing) elements are themselves dicts + # (ie not of form {type XXX value yyy}) + # + # A further point is that if all root level values are at the 'top' - we can treat lower table-like structures as {[table]} elements + #ie we don't need to force do_inline if all the 'simple' keys are before any compound keys + + #set root_has_values 0 + #approach 1) - the naive approach - forces inline when not always necessary + #dict for {k v} $d { + # if {[llength $v] == 4 && [lindex $v 0] eq "type"} { + # set root_has_values 1 + # break + # } + #} + + + #approach 2) - track the position of last {type x value y} in the dictionary built by to_dict + # - still not perfect. Inlines dotted tables unnecessarily + #This means from_dict doesn't produce output optimal for human editing. + set last_simple [tomlish::dict::last_tomltype_posn $d] + + + ## set parent "do_inline" ;#a value used in _from_dictval to distinguish from "" or other context based parent values + #Any keys that are themselves tables - will need to be represented inline + #to avoid reordering, or incorrect assignment of plain values to the wrong table. + + ## set parent "" + #all toplevel keys in the dict structure can represent subtables. + #we are free to use {[tablename]\n} syntax for toplevel elements. + + + set tomlish [list TOMLISH] + set dictposn 0 + set tablestack [list [list T root]] ;#todo + dict for {t tinfo} $d { + if {$last_simple > $dictposn} { + set parents [list do_inline] + } else { + set parents [list ""] + } + set keys [list $t] + set trecord [_from_dictval $parents $tablestack $keys $tinfo] + lappend tomlish $trecord + incr dictposn + } + return $tomlish + } + + proc json_to_toml {json} { + #*** !doctools + #[call [fun json_to_toml] [arg json]] + #[para] + + set tomlish [::tomlish::from_json $json] + set toml [::tomlish::to_toml $tomlish] + } + + #TODO use huddle? + proc from_json {json} { + #set jstruct [::tomlish::json_struct $json] + #return [::tomlish::from_json_struct $jstruct] + package require huddle + package require huddle::json + set h [huddle::json::json2huddle parse $json] + + } + + proc from_json_struct {jstruct} { + package require fish::json_toml + return [fish::json_toml::jsonstruct2tomlish $jstruct] + } + + proc toml_to_json {toml} { + set tomlish [::tomlish::from_toml $toml] + return [::tomlish::get_json $tomlish] + } + + proc get_json {tomlish} { + package require fish::json + set d [::tomlish::to_dict $tomlish] + #return [::tomlish::dict_to_json $d] + return [fish::json::from "struct" $d] + } + + + + + #*** !doctools + #[list_end] [comment {--- end definitions namespace tomlish ---}] +} +# ++ +++ +++ +++ +++ +++ +++ +++ +++ +++ +++ + +namespace eval tomlish::build { + #STRING,INT,FLOAT,BOOL, DATETIME - simple wrappers for completeness + # take a value of the appropriate type and wrap as a tomlish tagged item + proc STRING {s} { + return [list STRING [::tomlish::utils::rawstring_to_Bstring_with_escaped_controls $s]] + } + proc LITERAL {litstring} { + error todo + } + + proc INT {i} { + #whole numbers, may be prefixed with a + or - + #Leading zeros are not allowed + #Hex,octal binary forms are allowed (toml 1.0) + #We will error out on encountering commas, as commas are interpreted differently depending on locale (and don't seem to be supported in the toml spec anyway) + #!todo - Tcl can handle bignums - bigger than a 64bit signed long as specified in toml. + # - We should probably raise an error for number larger than this and suggest the user supply it as a string? + if {[tcl::string::last , $i] > -1} { + error "Unable to interpret '$i' as an integer. Use underscores if you need a thousands separator [::tomlish::parse::report_line]" + } + if {![::tomlish::utils::int_validchars $i]} { + error "Unable to interpret '$i' as an integer. Only 0-9 + 1 _ characters are acceptable. [::tomlish::parse::report_line]" + } + + if {[::tomlish::utils::is_int $i]} { + return [list INT $i] + } else { + error "'$i' is not a valid integer as per the Toml spec. [::tomlish::parse::report_line]" + } + + } + + proc FLOAT {f} { + #convert any non-lower case variants of special values to lowercase for Toml + if {[::tcl::string::tolower $f] in {nan +nan -nan inf +inf -inf}} { + return [list FLOAT [tcl::string::tolower $f]] + } + if {[::tomlish::utils::is_float $f]} { + return [list FLOAT $f] + } else { + error "Unable to interpret '$f' as Toml float. Check your input, or check that tomlish is able to handle all Toml floats properly [::tomlish::parse::report_line]" + } + } + + proc DATETIME {str} { + if {[::tomlish::utils::is_datetime $str]} { + return [list DATETIME $str] + } else { + error "Unable to interpret '$str' as Toml datetime. Check your input, or check that tomlish is able to handle all Toml datetimes properly [::tomlish::parse::report_line]" + } + } + + proc BOOLEAN {b} { + #convert any Tcl-acceptable boolean to boolean as accepted by toml - lower case true/false + if {![tcl::string::is boolean -strict $b]} { + error "Unable to convert '$b' to Toml boolean true|false. [::tomlish::parse::report_line]" + } else { + if {$b && 1} { + return [::list BOOL true] + } else { + return [::list BOOL false] + } + } + } + + #REVIEW + #Take tablename followed by + # a) *tomlish* name-value pairs e.g table mydata [list KEY item11 = [list STRING "test"]] {KEY item2 = [list INT 1]} + # (accept also key value {STRING }) + # b) simple 2-element tcl lists being name & *simple* value pairs for which basic heuristics will be used to determine types + proc _table {name args} { + set pairs [list] + foreach t $args { + if {[llength $t] == 4} { + if {[tcl::string::tolower [lindex $t 0]] ne "key" || [tcl::string::tolower [lindex $t 2]] ni "= value"} { + error "Only items tagged as KEY = currently accepted as name-value pairs for table command" + } + lassign $t _k keystr _eq valuepart + if {[llength $valuepart] != 2} { + error "supplied value must be typed. e.g {INT 1} or {STRING test}" + } + lappend pairs [list KEY $keystr = $valuepart] + } elseif {[llength $t] == 2} { + #!todo - type heuristics + lassign $t n v + lappend pairs [list KEY $n = [list STRING $v]] + } else { + error "'KEY = { toml but + # the first newline is not part of the data. + # we elect instead to maintain a basic LITERALPART that must not contain newlines.. + # and to compose MULTILITERAL of multiple NEWLINE LITERALPART parts, + #with the datastructure representation dropping the first newline (if immediately following opening delim) when building the value. + set literal "" + foreach part [lrange $item 1 end] { + append literal [::tomlish::encode::tomlish [list $part] $nextcontext] + } + append toml '''$literal''' + } + INT - + BOOL - + FLOAT - + DATETIME { + append toml [lindex $item 1] + } + INCOMPLETE { + error "cannot process tomlish term tagged as INCOMPLETE" + } + COMMENT { + append toml "#[lindex $item 1]" + } + BOM { + #Byte Order Mark may appear at beginning of a file. Needs to be preserved. + append toml "\uFEFF" + } + default { + error "Not a properly formed 'tomlish' taggedlist.\n '$list'\n Unknown tag '[lindex $item 0]'. See output of \[tomlish::tags\] command." + } + } + + } + return $toml + } + + + + #*** !doctools + #[list_end] [comment {--- end definitions namespace tomlish::encode ---}] +} +#fish toml from tomlish + +#(encode tomlish as toml) +interp alias {} tomlish::to_toml {} tomlish::encode::tomlish + +# + + +namespace eval tomlish::decode { + #*** !doctools + #[subsection {Namespace tomlish::decode}] + #[para] + #[list_begin definitions] + + #return a Tcl list of tomlish tokens + #i.e get a standard list of all the toml terms in string $s + #where each element of the list is a *tomlish* term.. i.e a specially 'tagged' Tcl list. + #(simliar to a tcl 'Huddle' - but also supporting whitespace preservation) + # ---------------------------------------------------------------------------------------------- + # NOTE: the production of tomlish from toml source doesn't indicate the toml source was valid!!! + # e.g we deliberately don't check certain things such as duplicate table declarations here. + # ---------------------------------------------------------------------------------------------- + #Part of the justification for this is that as long as the syntax is toml shaped - we can load files which violate certain rules and allow programmatic manipulation. + # (e.g perhaps a toml editor to highlight violations for fixing) + # A further stage is then necessary to load the tomlish tagged list into a data structure more suitable for efficient query/reading. + # e.g dicts or an object oriented structure + #Note also - *no* escapes in quoted strings are processed. This is up to the datastructure stage + #e.g to_dict will substitute \r \n \uHHHH \UHHHHHHH etc + #This is important for tomlish to maintain the ability to perform competely lossless round-trips from toml to tomlish and back to toml. + # (which is handy for testing as well as editing some part of the structure with absolutely no effect on other parts of the document) + #If we were to unescape a tab character for example + # - we have no way of knowing if it was originally specified as \t \u0009 or \U00000009 or directly as a tab character. + # For this reason, we also do absolutely no line-ending transformations based on platform. + # All line-endings are maintained as is, and even a file with mixed lf crlf line-endings will be correctly interpreted and can be 'roundtripped' + + proc toml {args} { + #*** !doctools + #[call [fun toml] [arg arg...]] + #[para] return a Tcl list of tomlish tokens + + set s [join $args \n] + + namespace upvar ::tomlish::parse is_parsing is_parsing + set is_parsing 1 + + if {[info command ::tomlish::parse::spacestack] eq "::tomlish::parse::spacestack"} { + tomlish::parse::spacestack destroy + } + struct::stack ::tomlish::parse::spacestack + + namespace upvar ::tomlish::parse last_space_action last_space_action + namespace upvar ::tomlish::parse last_space_type last_space_type + + namespace upvar ::tomlish::parse tok tok + set tok "" + + namespace upvar ::tomlish::parse type type + namespace upvar ::tomlish::parse tokenType tokenType + ::tomlish::parse::set_tokenType "" + namespace upvar ::tomlish::parse tokenType_list tokenType_list + set tokenType [list] ;#Flat (un-nested) list of tokentypes found + + namespace upvar ::tomlish::parse lastChar lastChar + set lastChar "" + + + set result "" + namespace upvar ::tomlish::parse nest nest + set nest 0 + + namespace upvar ::tomlish::parse v v ;#array keyed on nest level + + + set v(0) {TOMLISH} + array set s0 [list] ;#whitespace data to go in {SPACE {}} element. + set parentlevel 0 + + namespace upvar ::tomlish::parse i i + set i 0 + + namespace upvar ::tomlish::parse state state + + namespace upvar ::tomlish::parse braceCount braceCount + set barceCount 0 + namespace upvar ::tomlish::parse bracketCount bracketCount + set bracketCount 0 + + set sep 0 + set r 1 + namespace upvar ::tomlish::parse token_waiting token_waiting + set token_waiting [dict create] ;#if ::tok finds a *complete* second token during a run, it will put the 2nd one here to be returned by the next call. + + + set state "table-space" + ::tomlish::parse::spacestack push {type space state table-space} + namespace upvar ::tomlish::parse linenum linenum;#'line number' of input data. (incremented for each literal linefeed - but not escaped ones in data) + set linenum 1 + + set ::tomlish::parse::state_list [list] + try { + while {$r} { + set r [::tomlish::parse::tok $s] + #puts stdout "got tok: '$tok' while parsing string '$s' " + set next_tokenType_known 0 ;#whether we begin a new token here based on what terminated the token result of 'tok' + + + #puts "got token: '$tok' tokenType='$tokenType'. while v($nest) = [set v($nest)]" + #puts "-->tok: $tok tokenType='$tokenType'" + set prevstate $state + set transition_info [::tomlish::parse::goNextState $tokenType $tok $state] + #review goNextState could perform more than one space_action + set space_action [dict get $transition_info space_action] + set newstate [dict get $transition_info newstate] ;#use of 'newstate' vs 'state' makes code clearer below + + if {[tcl::string::match "err-*" $state]} { + ::tomlish::log::warn "---- State error in state $prevstate for tokenType: $tokenType token value: $tok. $state aborting parse. [tomlish::parse::report_line]" + lappend v(0) [list ERROR tokentype $tokenType state $prevstate to $state leveldata [set v($nest)]] + return $v(0) + } + # --------------------------------------------------------- + #NOTE there may already be a token_waiting at this point + #set_token_waiting can raise an error here, + # in which case the space_action branch needs to be rewritten to handle the existing token_waiting + # --------------------------------------------------------- + + if {$space_action eq "pop"} { + #pop_trigger_tokens: newline tablename endarray endinlinetable + #note a token is a pop trigger depending on context. e.g first newline during keyval is a pop trigger. + set parentlevel [expr {$nest -1}] + set do_append_to_parent 1 ;#most tokens will leave this alone - but some like squote_seq need to do their own append + switch -exact -- $tokenType { + squote_seq { + #### + set do_append_to_parent 0 ;#mark false to indicate we will do our own appends if needed + #Without this - we would get extraneous empty list entries in the parent + # - as the xxx-squote-space isn't a space level from the toml perspective + # - the use of a space is to give us a hook here to (possibly) integrate extra quotes into the parent space when we pop + switch -- $tok { + ' { + tomlish::parse::set_token_waiting type startsquote value $tok complete 1 startindex [expr {$i -1}] + } + '' { + #review - we should perhaps return double_squote instead? + #tomlish::parse::set_token_waiting type literal value "" complete 1 + tomlish::parse::set_token_waiting type double_squote value "" complete 1 startindex [expr {$i - 2}] + } + ''' { + #### + #if already an eof in token_waiting - set_token_waiting will insert before it + tomlish::parse::set_token_waiting type triple_squote value $tok complete 1 startindex [expr {$i - 3}] + } + '''' { + switch -exact -- $prevstate { + leading-squote-space { + error "---- 4 squotes from leading-squote-space - shouldn't get here" + #we should have emitted the triple and left the last for next loop + } + trailing-squote-space { + tomlish::parse::set_token_waiting type triple_squote value $tok complete 1 startindex [expr {$i - 4}] + #todo integrate left squote with nest data at this level + set lastpart [lindex $v($parentlevel) end] + switch -- [lindex $lastpart 0] { + LITERALPART { + set newval "[lindex $lastpart 1]'" + set parentdata $v($parentlevel) + lset parentdata end [list LITERALPART $newval] + set v($parentlevel) $parentdata + } + NEWLINE { + lappend v($parentlevel) [list LITERALPART "'"] + } + MULTILITERAL { + #empty + lappend v($parentlevel) [list LITERALPART "'"] + } + default { + error "--- don't know how to integrate extra trailing squote with data $v($parentlevel)" + } + } + } + default { + error "--- unexpected popped due to squote_seq but came from state '$prevstate' should have been leading-squote-space or trailing-squote-space" + } + } + } + ''''' { + switch -exact -- $prevstate { + leading-squote-space { + error "---- 5 squotes from leading-squote-space - shouldn't get here" + #we should have emitted the triple and left the following squotes for next loop + } + trailing-squote-space { + tomlish::parse::set_token_waiting type triple_squote value $tok complete 1 startindex [expr {$i-5}] + #todo integrate left 2 squotes with nest data at this level + set lastpart [lindex $v($parentlevel) end] + switch -- [lindex $lastpart 0] { + LITERALPART { + set newval "[lindex $lastpart 1]''" + set parentdata $v($parentlevel) + lset parentdata end [list LITERALPART $newval] + set v($parentlevel) $parentdata + } + NEWLINE { + lappend v($parentlevel) [list LITERALPART "''"] + } + MULTILITERAL { + lappend v($parentlevel) [list LITERALPART "''"] + } + default { + error "--- don't know how to integrate extra trailing 2 squotes with data $v($parentlevel)" + } + } + } + default { + error "--- unexpected popped due to squote_seq but came from state '$prevstate' should have been leading-squote-space or trailing-squote-space" + } + } + } + } + puts stderr "tomlish::decode::toml ---- HERE squote_seq pop <$tok>" + } + triple_squote { + #presumably popping multiliteral-space + ::tomlish::log::debug "---- triple_squote for last_space_action pop leveldata: $v($nest)" + set merged [list] + set lasttype "" + foreach part $v($nest) { + switch -exact -- [lindex $part 0] { + MULTILITERAL { + lappend merged $part + } + LITERALPART { + if {$lasttype eq "LITERALPART"} { + set prevpart [lindex $merged end] + lset prevpart 1 [lindex $prevpart 1][lindex $part 1] + lset merged end $prevpart + } else { + lappend merged $part + } + } + NEWLINE { + #note that even though first newline ultimately gets stripped from multiliterals - that isn't done here + #we still need the first one for roundtripping. The datastructure stage is where it gets stripped. + lappend merged $part + } + default { + error "---- triple_squote unhandled part type [lindex $part 0] unable to merge leveldata: $v($next)" + } + } + set lasttype [lindex $part 0] + } + set v($nest) $merged + } + equal { + #pop caused by = + switch -exact -- $prevstate { + dottedkey-space { + tomlish::log::debug "---- equal ending dottedkey-space for last_space_action pop" + #re-emit for parent space + tomlish::parse::set_token_waiting type equal value = complete 1 startindex [expr {$i-1}] + } + dottedkey-space-tail { + #experiment? + tomlish::log::debug "---- equal ending dottedkey-space-tail for last_space_action pop" + #re-emit for parent space + tomlish::parse::set_token_waiting type equal value = complete 1 startindex [expr {$i-1}] + } + } + } + newline { + incr linenum + lappend v($nest) [list NEWLINE $tok] + } + tablename { + #note: a tablename only 'pops' if we are greater than zero + error "---- tablename pop should already have been handled as special case zeropoppushspace in goNextState" + } + tablearrayname { + #!review - tablearrayname different to tablename regarding push/pop? + #note: a tablename only 'pops' if we are greater than zero + error "---- tablearrayname pop should already have been handled as special case zeropoppushspace in goNextState" + } + endarray { + #nothing to do here. + } + comma { + #comma for inline table will pop the keyvalue space + lappend v($nest) "SEP" + } + endinlinetable { + ::tomlish::log::debug "---- endinlinetable for last_space_action pop" + } + endmultiquote { + ::tomlish::log::debug "---- endmultiquote for last_space_action 'pop'" + } + default { + error "---- unexpected tokenType '$tokenType' for last_space_action 'pop'" + } + } + if {$do_append_to_parent} { + #e.g squote_seq does it's own appends as necessary - so won't get here + lappend v($parentlevel) [set v($nest)] + } + + incr nest -1 + + } elseif {$last_space_action eq "push"} { + set prevnest $nest + incr nest 1 + set v($nest) [list] + # push_trigger_tokens: barekey dquotedkey startinlinetable startarray tablename tablearrayname + + + switch -exact -- $tokenType { + squote_seq_begin { + #### + if {[dict exists $transition_info starttok] && [dict get $transition_info starttok] ne ""} { + lassign [dict get $transition_info starttok] starttok_type starttok_val + set next_tokenType_known 1 + ::tomlish::parse::set_tokenType $starttok_type + set tok $starttok_val + } + } + squotedkey { + switch -exact -- $prevstate { + table-space - itable-space { + set v($nest) [list DOTTEDKEY] + } + } + #todo - check not something already waiting? + tomlish::parse::set_token_waiting type $tokenType value $tok complete 1 startindex [expr {$i -[tcl::string::length $tok]}] ;#re-submit token in the newly pushed space + } + dquotedkey { + switch -exact -- $prevstate { + table-space - itable-space { + set v($nest) [list DOTTEDKEY] + } + } + #todo - check not something already waiting? + tomlish::parse::set_token_waiting type $tokenType value $tok complete 1 startindex [expr {$i -[tcl::string::length $tok]}] ;#re-submit token in the newly pushed space + } + XXXdquotedkey - XXXitablequotedkey { + #todo + set v($nest) [list DQKEY $tok] ;#$tok is the keyname + } + barekey { + switch -exact -- $prevstate { + table-space - itable-space { + set v($nest) [list DOTTEDKEY] + } + } + #todo - check not something already waiting? + set waiting [tomlish::parse::get_token_waiting] + if {[llength $waiting]} { + set i [dict get $waiting startindex] + tomlish::parse::clear_token_waiting + tomlish::parse::set_token_waiting type $tokenType value $tok complete 1 startindex [expr {$i -[tcl::string::length $tok]}] ;#re-submit token in the newly pushed space + } else { + tomlish::parse::set_token_waiting type $tokenType value $tok complete 1 startindex [expr {$i -[tcl::string::length $tok]}] ;#re-submit token in the newly pushed space + } + } + startsquote { + #JMN + set next_tokenType_known 1 + ::tomlish::parse::set_tokenType "squotedkey" + set tok "" + } + tablename { + #note: we do not use the output of tomlish::tablename_trim to produce a tablename for storage in the tomlish list! + #The tomlish list is intended to preserve all whitespace (and comments) - so a roundtrip from toml file to tomlish + # back to toml file will be identical. + #It is up to the datastructure stage to normalize and interpret tomlish for programmatic access. + # we call tablename_trim here only to to validate that the tablename data is well-formed at the outermost level, + # so we can raise an error at this point rather than create a tomlish list with obviously invalid table names. + + #todo - review! It's arguable that we should not do any validation here, and just store even incorrect raw tablenames, + # so that the tomlish list is more useful for say a toml editor. Consider adding an 'err' tag to the appropriate place in the + # tomlish list? + + set test_only [::tomlish::utils::tablename_trim $tok] + ::tomlish::log::debug "---- trimmed (but not normalized) tablename: '$test_only'" + set v($nest) [list TABLE $tok] ;#$tok is the *raw* table name + #note also that equivalent tablenames may have different toml representations even after being trimmed! + #e.g ["x\t\t"] & ["x "] (tab escapes vs literals) + #These will show as above in the tomlish list, but should normalize to the same tablename when used as keys by the datastructure stage. + } + tablearrayname { + set test_only [::tomlish::utils::tablename_trim $tok] + puts stdout "trimmed (but not normalized) tablearrayname: '$test_only'" + set v($nest) [list TABLEARRAY $tok] ;#$tok is the *raw* tablearray name + } + startarray { + set v($nest) [list ARRAY] ;#$tok is just the opening bracket - don't output. + } + startinlinetable { + set v($nest) [list ITABLE] ;#$tok is just the opening curly brace - don't output. + } + startmultiquote { + ::tomlish::log::debug "---- push trigger tokenType startmultiquote" + set v($nest) [list MULTISTRING] ;#container for STRINGPART, WS, CONT, NEWLINE + } + triple_squote { + ::tomlish::log::debug "---- push trigger tokenType triple_squote" + set v($nest) [list MULTILITERAL] ;#container for NEWLINE,LITERAL + } + default { + error "---- push trigger tokenType '$tokenType' not yet implemented" + } + } + + } else { + #no space level change + switch -exact -- $tokenType { + squotedkey { + puts "---- squotedkey in state $prevstate (no space level change)" + lappend v($nest) [list SQKEY $tok] + } + dquotedkey { + puts "---- dquotedkey in state $prevstate (no space level change)" + lappend v($nest) [list DQKEY $tok] + } + barekey { + lappend v($nest) [list KEY $tok] + } + dotsep { + lappend v($nest) [list DOTSEP] + } + starttablename { + #$tok is triggered by the opening bracket and sends nothing to output + } + starttablearrayname { + #$tok is triggered by the double opening brackets and sends nothing to output + } + tablename - tablenamearray { + error "---- did not expect 'tablename/tablearrayname' without space level change (no space level change)" + #set v($nest) [list TABLE $tok] + } + endtablename - endtablearrayname { + #no output into the tomlish list for this token + } + startinlinetable { + puts stderr "---- decode::toml error. did not expect startinlinetable without space level change (no space level change)" + } + startquote { + switch -exact -- $newstate { + string-state { + set next_tokenType_known 1 + ::tomlish::parse::set_tokenType "string" + set tok "" + } + quoted-key { + set next_tokenType_known 1 + ::tomlish::parse::set_tokenType "dquotedkey" + set tok "" + } + XXXitable-quoted-key { + set next_tokenType_known 1 + ::tomlish::parse::set_tokenType "itablequotedkey" + set tok "" + } + default { + error "---- startquote switch case not implemented for nextstate: $newstate (no space level change)" + } + } + } + startsquote { + switch -exact -- $newstate { + literal-state { + set next_tokenType_known 1 + ::tomlish::parse::set_tokenType "literal" + set tok "" + } + squoted-key { + set next_tokenType_known 1 + ::tomlish::parse::set_tokenType "squotedkey" + set tok "" + } + multiliteral-space { + #false alarm squote returned from squote_seq pop + ::tomlish::log::debug "---- adding lone squote to own LITERALPART nextstate: $newstate (no space level change)" + #(single squote - not terminating space) + lappend v($nest) [list LITERALPART '] + #may need to be joined on pop if there are neighbouring LITERALPARTs + } + default { + error "---- startsquote switch case not implemented for nextstate: $newstate (no space level change)" + } + } + } + startmultiquote { + #review + puts stderr "---- got startmultiquote in state $prevstate (no space level change)" + set next_tokenType_known 1 + ::tomlish::parse::set_tokenType "stringpart" + set tok "" + } + endquote { + #nothing to do? + set tok "" + } + endsquote { + set tok "" + } + endmultiquote { + #JMN!! + set tok "" + } + string { + lappend v($nest) [list STRING $tok] ;#directly wrapped in dquotes + } + literal { + lappend v($nest) [list LITERAL $tok] ;#directly wrapped in squotes + } + double_squote { + switch -exact -- $prevstate { + keyval-value-expected { + lappend v($nest) [list LITERAL ""] + } + multiliteral-space { + #multiliteral-space to multiliteral-space + lappend v($nest) [list LITERALPART ''] + } + default { + error "--- unhandled tokenType '$tokenType' when transitioning from state $prevstate to $newstate [::tomlish::parse::report_line] (no space level change)" + } + } + } + multistring { + #review + lappend v($nest) [list MULTISTRING $tok] + } + stringpart { + lappend v($nest) [list STRINGPART $tok] ;#will not get wrapped in dquotes directly + } + multiliteral { + lappend v($nest) [LIST MULTILITERAL $tok] + } + literalpart { + lappend v($nest) [list LITERALPART $tok] ;#will not get wrapped in squotes directly + } + itablequotedkey { + + } + untyped_value { + #we can't determine the type of unquoted values (int,float,datetime,bool) until the entire token was read. + if {$tok in {true false}} { + set tag BOOL + } elseif {[::tomlish::utils::is_int $tok]} { + set tag INT + } elseif {[::tomlish::utils::is_float $tok]} { + set tag FLOAT + } elseif {[::tomlish::utils::is_datetime $tok]} { + set tag DATETIME + } else { + error "---- Unable to interpret '$tok' as Boolean, Integer, Float or Datetime as per the toml specs. [tomlish::parse::report_line] (no space level change)" + } + lappend v($nest) [list $tag $tok] + + } + comment { + #puts stdout "----- comment token returned '$tok'------" + lappend v($nest) [list COMMENT "$tok"] + } + equal { + #we append '=' to the nest so that any surrounding whitespace is retained. + lappend v($nest) = + } + comma { + lappend v($nest) SEP + } + newline { + incr linenum + lappend v($nest) [list NEWLINE $tok] + } + whitespace { + lappend v($nest) [list WS $tok] + } + continuation { + lappend v($nest) CONT + } + bom { + lappend v($nest) BOM + } + eof { + #ok - nothing more to add to the tomlish list. + #!todo - check previous tokens are complete/valid? + } + default { + error "--- unknown tokenType '$tokenType' during state $prevstate [::tomlish::parse::report_line] (no space level change)" + } + } + } + + if {!$next_tokenType_known} { + ::tomlish::log::notice "---- tomlish::decode::toml - current tokenType:$tokenType Next token type not known" + ::tomlish::parse::set_tokenType "" + set tok "" + } + + if {$state eq "end-state"} { + break + } + + + } + + #while {$nest > 0} { + # lappend v([expr {$nest -1}]) [set v($nest)] + # incr nest -1 + #} + while {[::tomlish::parse::spacestack size] > 1} { + ::tomlish::parse::spacestack pop + lappend v([expr {$nest -1}]) [set v($nest)] + incr nest -1 + + #set parent [spacestack peek] ;#the level being appended to + #lassign $parent type state + #if {$type eq "space"} { + # + #} elseif {$type eq "buffer"} { + # lappend v([expr {$nest -1}]) {*}[set v($nest)] + #} else { + # error "invalid spacestack item: $parent" + #} + } + + } finally { + set is_parsing 0 + } + return $v(0) + } + + #*** !doctools + #[list_end] [comment {--- end definitions namespace tomlish::decode ---}] +} +#decode toml to tomlish +interp alias {} tomlish::from_toml {} tomlish::decode::toml + +namespace eval tomlish::utils { + #*** !doctools + #[subsection {Namespace tomlish::utils}] + #[para] + #[list_begin definitions] + + + #tablenames (& tablearraynames) may contain irrelevant leading, trailing and interspersed whitespace + # tablenames can be made up of segments delimited by dots. .eg [ a.b . c ] + #trimmed, the tablename becomes {a.b.c} + # A segment may contain whitespace if it is quoted e.g [a . b . "c etc " ] + #ie whitespace is only irrelevant if it's outside a quoted segment + #trimmed, the tablename becomes {a.b."c etc "} + proc tablename_trim {tablename} { + set segments [tablename_split $tablename false] + set trimmed_segments [list] + foreach seg $segments { + lappend trimmed_segments [::string trim $seg " \t"] + } + return [join $trimmed_segments .] + } + + #basic generic quote matching for single and double quotes + #note for example that {[o'malley]} will return sq - as the single quote is not closed or wrapped in double quotes + proc tok_in_quotedpart {tok} { + set sLen [tcl::string::length $tok] + set quote_type "" + set had_slash 0 + for {set i 0} {$i < $sLen} {incr i} { + set c [tcl::string::index $tok $i] + if {$quote_type eq ""} { + if {$had_slash} { + #don't enter quote mode + #leave slash_mode because even if current char is slash - it is escaped + set had_slash 0 + } else { + set ctype [tcl::string::map [list {"} dq {'} sq \\ bsl] $c] + switch -- $ctype { + dq { + set quote_type dq + } + sq { + set quote_type sq + } + bsl { + set had_slash 1 + } + } + } + } else { + if {$had_slash} { + #don't leave quoted mode + #leave slash_mode because even if current char is slash - it is escaped + set had_slash 0 + } else { + set ctype [tcl::string::map [list {"} dq {'} sq \\ bsl] $c] + switch -- $ctype { + dq { + if {$quote_type eq "dq"} { + set quote_type "" + } + } + sq { + if {$quote_type eq "sq"} { + set quote_type "" + } + } + bsl { + set had_slash 1 + } + } + } + } + } + return $quote_type ;#dq | sq + } + + #utils::tablename_split + proc tablename_split {tablename {normalize false}} { + #we can't just split on . because we have to handle quoted segments which may contain a dot. + #eg {dog."tater.man"} + set sLen [tcl::string::length $tablename] + set segments [list] + set mode "unknown" ;#5 modes: unknown, quoted,litquoted, unquoted, syntax + #quoted is for double-quotes, litquoted is for single-quotes (string literal) + set seg "" + for {set i 0} {$i < $sLen} {incr i} { + + if {$i > 0} { + set lastChar [tcl::string::index $tablename [expr {$i - 1}]] + } else { + set lastChar "" + } + + set c [tcl::string::index $tablename $i] + + if {$c eq "."} { + switch -exact -- $mode { + unquoted { + #dot marks end of segment. + lappend segments $seg + set seg "" + set mode "unknown" + } + quoted { + append seg $c + } + unknown { + lappend segments $seg + set seg "" + } + litquoted { + append seg $c + } + default { + #mode: syntax + #we got our dot. - the syntax mode is now satisfied. + set mode "unknown" + } + } + } elseif {($c eq "\"") && ($lastChar ne "\\")} { + if {$mode eq "unknown"} { + if {[tcl::string::trim $seg] ne ""} { + #we don't allow a quote in the middle of a bare key + error "tablename_split. character '\"' invalid at this point in tablename. tablename: '$tablename'" + } + set mode "quoted" + set seg "\"" + } elseif {$mode eq "unquoted"} { + append seg $c + } elseif {$mode eq "quoted"} { + append seg $c + + if {$normalize} { + lappend segments [::tomlish::utils::unescape_string [tcl::string::range $seg 1 end-1]] + } else { + lappend segments $seg + } + + set seg "" + set mode "syntax" ;#make sure we only accept a dot or end-of-data now. + } elseif {$mode eq "litquoted"} { + append seg $c + } elseif {$mode eq "syntax"} { + error "tablename_split. expected whitespace or dot, got double quote. tablename: '$tablename'" + } + } elseif {($c eq "\'")} { + if {$mode eq "unknown"} { + append seg $c + set mode "litquoted" + } elseif {$mode eq "unquoted"} { + #single quote inside e.g o'neill + append seg $c + } elseif {$mode eq "quoted"} { + append seg $c + + } elseif {$mode eq "litquoted"} { + append seg $c + #no normalization to do + lappend segments $seg + set seg "" + set mode "syntax" + } elseif {$mode eq "syntax"} { + error "tablename_split. expected whitespace or dot, got single quote. tablename: '$tablename'" + } + + } elseif {$c in [list " " \t]} { + if {$mode eq "syntax"} { + #ignore + } else { + append seg $c + } + } else { + if {$mode eq "syntax"} { + error "tablename_split. Expected a dot separator. got '$c'. tablename: '$tablename'" + } + if {$mode eq "unknown"} { + set mode "unquoted" + } + append seg $c + } + if {$i == $sLen-1} { + #end of data + ::tomlish::log::debug "End of data: mode='$mode'" + #REVIEW - we can only end up in unquoted or syntax here? are other branches reachable? + switch -exact -- $mode { + quoted { + if {$c ne "\""} { + error "tablename_split. missing closing double-quote in a segment. tablename: '$tablename'" + } + if {$normalize} { + lappend segments [::tomlish::utils::unescape_string [tcl::string::range $seg 1 end-1]] + #lappend segments [subst -nocommands -novariables [::string range $seg 1 end-1]] ;#wrong + } else { + lappend segments $seg + } + } + litquoted { + set trimmed_seg [tcl::string::trim $seg] + if {[tcl::string::index $trimmed_seg end] ne "\'"} { + error "tablename_split. missing closing single-quote in a segment. tablename: '$tablename'" + } + lappend segments $seg + } + unquoted - unknown { + lappend segments $seg + } + syntax { + #ok - segment already lappended + } + default { + lappend segments $seg + } + } + } + } + foreach seg $segments { + set trimmed [tcl::string::trim $seg " \t"] + #note - we explicitly allow 'empty' quoted strings '' & "" + # (these are 'discouraged' but valid toml keys) + #if {$trimmed in [list "''" "\"\""]} { + # puts stderr "tablename_split. warning - Empty quoted string as tablename segment" + #} + if {$trimmed eq "" } { + error "tablename_split. Empty segment found. tablename: '$tablename' segments [llength $segments] ($segments)" + } + } + return $segments + } + + proc unicode_escape_info {slashu} { + #!todo + # validate that slashu is either a \uxxxx or \Uxxxxxxxx value of the correct length and + # is a valid 'unicode scalar value' (any Unicode code point except high-surrogate and low-surrogate code points) + # ie integers in the range 0 to D7FF16 and E00016 to 10FFFF16 inclusive + #expr {(($x >= 0) && ($x <= 0xD7FF16)) || (($x >= 0xE00016) && ($x <= 0x10FFFF16))} + if {[tcl::string::match {\\u*} $slashu]} { + set exp {^\\u([0-9a-fA-F]{4}$)} + if {[regexp $exp $slashu match hex]} { + if {[scan $hex %4x dec] != 1} { + #why would a scan ever fail after matching the regexp? !todo - review. unreachable branch? + return [list err [list reason "Failed to convert '$hex' to decimal"]] + } else { + return [list ok [list char [subst -nocommand -novariable $slashu]]] + } + } else { + return [list err [list reason "Supplied string not of the form \\uHHHH where H in \[0-9a-fA-F\]"]] + } + } elseif {[tcl::string::match {\\U*} $slashu]} { + set exp {^\\U([0-9a-fA-F]{8}$)} + if {[regexp $exp $slashu match hex]} { + if {[scan $hex %8x dec] != 1} { + #why would a scan ever fail after matching the regexp? !todo - review. unreachable branch? + return [list err [list reason "Failed to convert '$hex' to decimal"]] + } else { + if {(($dec >= 0) && ($dec <= 0xD7FF16)) || (($dec >= 0xE00016) && ($dec <= 0x10FFFF16))} { + return [list ok [list char [subst -nocommand -novariable $slashu]]] + } else { + return [list err [list reason "$slashu is not within the 'unicode scalar value' ranges 0 to 0xD7FF16 or 0xE00016 to 0x10FFFF16"]] + } + } + } else { + return [list err [list reason "Supplied string not of the form \\UHHHHHHHH where H in \[0-9a-fA-F\]"]] + } + } else { + return [list err [list reason "Supplied string did not start with \\u or \\U" ]] + } + + } + + #Note that unicode characters don't *have* to be escaped. + #So if we provide a function named 'escape_string', the name implies the inverse of unescape_string which unescapes unicode \u \U values. + #- an inverse of unescape_string would encode all unicode chars unnecessarily. + #- as toml accepts a compact escape sequence for common chars such as tab,backspace,linefeed etc but also allows the full form \u009 etc + #- escape_string and unescape_string would not be reliably roundtrippable inverses anyway. + #REVIEW - provide it anyway? When would it be desirable to use? + + variable Bstring_control_map [list\ + \b {\b}\ + \n {\n}\ + \r {\r}\ + \" {\"}\ + \x1b {\e}\ + \\ "\\\\"\ + ] + #\e for \x1b seems like it might be included - v1.1?? hard to find current state of where toml is going :/ + #for a Bstring (Basic string) tab is explicitly mentioned as not being one that must be escaped. + for {set cdec 0} {$cdec <= 8} {incr cdec} { + set hhhh [format %.4X $cdec] + lappend Bstring_control_map [format %c $cdec] \\u$hhhh + } + for {set cdec [expr {0x0A}]} {$cdec <= 0x1F} {incr cdec} { + set hhhh [format %.4X $cdec] + lappend Bstring_control_map [format %c $cdec] \\u$hhhh + } + # \u007F = 127 + lappend Bstring_control_map [format %c 127] \\u007F + + #Note the inclusion of backslash in the list of controls makes this non idempotent - subsequent runs would keep encoding the backslashes! + #escape only those chars that must be escaped in a Bstring (e.g not tab which can be literal or escaped) + #for example - can be used by from_dict to produce valid Bstring data for a tomlish record + proc rawstring_to_Bstring_with_escaped_controls {str} { + #for the well known chars that have compact escape sequences allowed by toml - we choose that form over the full \u form. + #we'll use a string map with an explicit list rather than algorithmic at runtime + # - the string map is probably more performant than splitting a string, especially if it's large + variable Bstring_control_map + return [string map $Bstring_control_map $str] + } + + #review - unescape what string? Bstring vs MLBstring? + #we should be specific in the function naming here + #used by to_dict - so part of validation? - REVIEW + proc unescape_string {str} { + #note we can't just use Tcl subst because: + # it also transforms \a (audible bell) and \v (vertical tab) which are not in the toml spec. + # it would strip out backslashes inappropriately: e.g "\j" becomes just j + # it recognizes other escapes which aren't approprite e.g \xhh and octal \nnn + # it replaces \ with a single whitespace (trailing backslash) + #This means we shouldn't use 'subst' on the whole string, but instead substitute only the toml-specified escapes (\r \n \b \t \f \\ \" \uhhhh & \Uhhhhhhhh + + set buffer "" + set buffer4 "" ;#buffer for 4 hex characters following a \u + set buffer8 "" ;#buffer for 8 hex characters following a \u + + set sLen [tcl::string::length $str] + + #we need to handle arbitrarily long sequences of backslashes. \\\\\ etc + set slash_active 0 + set unicode4_active 0 + set unicode8_active 0 + + ::tomlish::log::debug "unescape_string. got len [string length str] str $str" + + #!todo - check for invalid data in the form of a raw carriage return (decimal 13) without following linefeed? + set i 0 + for {} {$i < $sLen} {} { + if {$i > 0} { + set lastChar [tcl::string::index $str [expr {$i - 1}]] + } else { + set lastChar "" + } + + set c [tcl::string::index $str $i] + #::tomlish::log::debug "unescape_string. got char $c" ;#too much? + + #---------------------- + #as we are 'unescaping' - should we really be testing for existing values that should have been escaped? + #this test looks incomplete anyway REVIEW + scan $c %c n + if {($n <= 31) && ($n != 9) && ($n != 10) && ($n != 13)} { + #we don't expect unescaped unicode characters from 0000 to 001F - + #*except* for raw tab (which is whitespace) and newlines + error "unescape_string. Invalid data for a toml string. Unescaped control character (decimal $n) [::tomlish::utils::string_to_slashu $c]" + } + #---------------------- + + incr i ;#must incr here because we do'returns'inside the loop + if {$c eq "\\"} { + if {$slash_active} { + append buffer "\\" + set slash_active 0 + } elseif {$unicode4_active} { + error "unescape_string. unexpected case slash during unicode4 not yet handled" + } elseif {$unicode8_active} { + error "unescape_string. unexpected case slash during unicode8 not yet handled" + } else { + # don't output anything (yet) + set slash_active 1 + } + } else { + if {$unicode4_active} { + if {[tcl::string::length $buffer4] < 4} { + append buffer4 $c + } + if {[tcl::string::length $buffer4] == 4} { + #we have a \uHHHH to test + set unicode4_active 0 + set result [tomlish::utils::unicode_escape_info "\\u$buffer4"] + if {[lindex $result 0] eq "ok"} { + append buffer [dict get $result ok char] + } else { + error "unescape_string error: [lindex $result 1]" + } + } + } elseif {$unicode8_active} { + if {[tcl::string::length $buffer8] < 8} { + append buffer8 $c + } + if {[tcl::string::length $buffer8] == 8} { + #we have a \UHHHHHHHH to test + set unicode8_active 0 + set result [tomlish::utils::unicode_escape_info "\\U$buffer8"] + if {[lindex $result 0] eq "ok"} { + append buffer [dict get $result ok char] + } else { + error "unescape_string error: [lindex $result 1]" + } + } + } elseif {$slash_active} { + set slash_active 0 + set ctest [tcl::string::map {{"} dq} $c] + switch -exact -- $ctest { + dq { + set e "\\\"" + append buffer [subst -nocommand -novariable $e] + } + b - t - n - f - r { + set e "\\$c" + append buffer [subst -nocommand -novariable $e] + } + u { + set unicode4_active 1 + set buffer4 "" + } + U { + set unicode8_active 1 + set buffer8 "" + } + default { + set slash_active 0 + #review - toml spec says all other escapes are reserved + #and if they are used TOML should produce an error. + #we leave detecting this for caller for now - REVIEW + append buffer "\\" + append buffer $c + } + } + } else { + append buffer $c + } + } + } + #puts stdout "EOF 4:$unicode4_active 8:$unicode8_active slash:$slash_active" + if {$unicode4_active} { + error "End of string reached before complete unicode escape sequence \uHHHH" + } + if {$unicode8_active} { + error "End of string reached before complete unicode escape sequence \UHHHHHHHH" + } + if {$slash_active} { + append buffer "\\" + } + return $buffer + } + + #This does not have to do with unicode normal forms - which it seems toml has decided against regarding use in keys (review/references?) + #This is meant for internal use regarding ensuring we match equivalent keys which may have just been specified with different string mechanisms, + #e.g squoted vs dquoted vs barekey. + proc normalize_key {rawkey} { + set c1 [tcl::string::index $rawkey 0] + set c2 [tcl::string::index $rawkey end] + if {($c1 eq "'") && ($c2 eq "'")} { + #single quoted segment. No escapes allowed within it. + set key [tcl::string::range $rawkey 1 end-1] + } elseif {($c1 eq "\"") && ($c2 eq "\"")} { + #double quoted segment. Apply escapes. + # + set keydata [tcl::string::range $rawkey 1 end-1] ;#strip outer quotes only + #e.g key could have mix of \UXXXXXXXX escapes and unicode chars + #or mix of \t and literal tabs. + #unescape to convert all to literal versions for comparison + set key [::tomlish::utils::unescape_string $keydata] + #set key [subst -nocommands -novariables $keydata] ;#wrong. Todo - create a string escape substitution function. + } else { + set key $rawkey + } + return $key + } + + proc string_to_slashu {string} { + set rv {} + foreach c [split $string {}] { + scan $c %c cdec + if {$cdec > 65535} { + append rv {\U} [format %.8X $cdec] + } else { + append rv {\u} [format %.4X $cdec] + } + } + return $rv + } + + #'nonprintable' is conservative here because some systems (e.g windows console) are very limited in what they can display. + #This is used for display purposes only (error msgs) + proc nonprintable_to_slashu {s} { + set res "" + foreach i [split $s ""] { + scan $i %c cdec + + set printable 0 + if {($cdec>31) && ($cdec<127)} { + set printable 1 + } + if {$printable} { + append res $i + } else { + if {$cdec > 65535} { + append res \\U[format %.8X $cdec] + } else { + append res \\u[format %.4X $cdec] + } + } + } + set res + } ;# initial version from tcl wiki RS + + #check if str is valid for use as a toml bare key + #Early toml versions? only allowed letters + underscore + dash + proc is_barekey1 {str} { + if {[tcl::string::length $str] == 0} { + return 0 + } else { + set matches [regexp -all {[a-zA-Z0-9\_\-]} $str] + if {[tcl::string::length $str] == $matches} { + #all characters match the regexp + return 1 + } else { + return 0 + } + } + } + + #from toml.abnf in github.com/toml-lang/toml + #unquoted-key = 1*unquoted-key-char + #unquoted-key-char = ALPHA / DIGIT / %x2D / %x5F ; a-z A-Z 0-9 - _ + #unquoted-key-char =/ %xB2 / %xB3 / %xB9 / %xBC-BE ; superscript digits, fractions + #unquoted-key-char =/ %xC0-D6 / %xD8-F6 / %xF8-37D ; non-symbol chars in Latin block + #unquoted-key-char =/ %x37F-1FFF ; exclude GREEK QUESTION MARK, which is basically a semi-colon + #unquoted-key-char =/ %x200C-200D / %x203F-2040 ; from General Punctuation Block, include the two tie symbols and ZWNJ, ZWJ + #unquoted-key-char =/ %x2070-218F / %x2460-24FF ; include super-/subscripts, letterlike/numberlike forms, enclosed alphanumerics + #unquoted-key-char =/ %x2C00-2FEF / %x3001-D7FF ; skip arrows, math, box drawing etc, skip 2FF0-3000 ideographic up/down markers and spaces + #unquoted-key-char =/ %x2070-21FF / %x2300-24FF ; skip math operators + #unquoted-key-char =/ %x25A0-268B / %x2690-2757 ; skip box drawing, block elements, and some yin-yang symbols + #unquoted-key-char =/ %x2762-2767 / %x2776-27E5 ; skip some Dingbat punctuation + #unquoted-key-char =/ %x2801-297F ; skip some math brackets and arrows, and braille blank + #unquoted-key-char =/ %x2B00-2FFF / %x3001-D7FF ; skip various math operators and symbols, and ideographic space + #unquoted-key-char =/ %xF900-FDCF / %xFDF0-FFFD ; skip D800-DFFF surrogate block, E000-F8FF Private Use area, FDD0-FDEF intended for process-internal use (unicode) + #unquoted-key-char =/ %x10000-EFFFF ; all chars outside BMP range, excluding Private Use planes (F0000-10FFFF) + variable re_barekey + set ranges [list] + lappend ranges {a-zA-Z0-9\_\-} + lappend ranges {\u00B2} {\u00B3} {\u00B9} {\u00BC-\u00BE} ;# superscript digits, fractions + lappend ranges {\u00C0-\u00D6} {\u00D8-\u00F6} {\u00F8-\u037D} ;# non-symbol chars in Latin block + lappend ranges {\u037f-\u1FFF} ;# exclude GREEK QUESTION MARK, which is basically a semi-colon + lappend ranges {\u200C-\u200D} {\u203F-\u2040} ;# from General Punctuation Block, include the two tie symbols and ZWNJ, ZWJ + lappend ranges {\u2070-\u218f} {\u2460-\u24FF} ;# include super-subscripts, letterlike/numberlike forms, enclosed alphanumerics + lappend ranges {\u2C00-\u2FEF} {\u3001-\uD7FF} ;# skip arrows, math, box drawing etc, skip 2FF0-3000 ideographic up/down markers and spaces + lappend ranges {\u2070-\u21FF} {\u2300-\u24FF} ;# skip math operators + lappend ranges {\u25A0-\u268B} {\u2690-\u2757} ;# skip box drawing, block elements, and some yin-yang symbols + lappend ranges {\u2762-\u2767} {\u2776-\u27E5} ;# skip some Dingbat punctuation + lappend ranges {\u2801-\u297F} ;# skip some math brackets and arrows, and braille blank + lappend ranges {\u2B00-\u2FFF} {\u3001-\uD7FF} ;# skip various math operators and symbols, and ideographic space + lappend ranges {\uF900-\uFDCF} {\uFDF0-\uFFFD} ;# skip D800-DFFF surrogate block, E000-F8FF Private Use area, FDD0-FDEF intended for process-internal use (unicode) + lappend ranges {\U10000-\UEFFFF} ;# all chars outside BMP range, excluding Private Use planes (F0000-10FFFF) + set re_barekey {^[} + foreach r $ranges { + append re_barekey $r + } + append re_barekey {]+$} + + proc is_barekey {str} { + if {[tcl::string::length $str] == 0} { + return 0 + } + variable re_barekey + return [regexp $re_barekey $str] + } + + #test only that the characters in str are valid for the toml specified type 'integer'. + proc int_validchars1 {str} { + set numchars [tcl::string::length $str] + if {[regexp -all {[0-9\_\-\+]} $str] == $numchars} { + return 1 + } else { + return 0 + } + } + #add support for hex,octal,binary 0x.. 0o.. 0b... + proc int_validchars {str} { + set numchars [tcl::string::length $str] + if {[regexp -all {[0-9\_xo\-\+A-Fa-f]} $str] == $numchars} { + return 1 + } else { + return 0 + } + } + + proc is_int {str} { + set matches [regexp -all {[0-9\_xo\-\+A-Fa-f]} $str] ;#0b101 etc covered by a-f + + if {[tcl::string::length $str] == $matches} { + #all characters in legal range + + # --------------------------------------- + #check for leading zeroes in non 0x 0b 0o + #first strip any +, - or _ (just for this test) + #(but still allowing 0 -0 +0) + set check [tcl::string::map {+ "" - "" _ ""} $str] + if {([tcl::string::length $check] > 1) && ([tcl::string::index $check 0] eq "0") && ([tcl::string::index $check 1] ni {o x b})} { + return 0 + } + # --------------------------------------- + + #check +,- only occur in the first position. (excludes also +++1 etc) + if {[tcl::string::last - $str] > 0} { + return 0 + } + if {[tcl::string::last + $str] > 0} { + return 0 + } + + #------------------------------------------- + #unclear if a 'digit' includes the type specifiers x b o + #we assume the 0x 0b 0o are NOT counted as digits - as underscores here would seem + #to be likely to cause interop issues with other systems + #(e.g tcl allows 0b1_1 but not 0b_11) + #Most of this structure would be unnecessary if we could rely on string::is::integer understanding underscores (9+?) + #we still need to support earlier Tcl for now though. + + #first rule out any case with more than one underscore in a row + if {[regexp {__} $str]} { + return 0 + } + if {[string index $str 0] eq "_"} { + return 0 + } + set utest [string trimleft $str +-] + #test again for further trick like _+_0xFF + if {[string index $utest 0] eq "_"} { + return 0 + } + if {[string range $utest 0 1] in {0x 0b 0o}} { + set testnum [string range $utest 2 end] + } else { + set testnum $utest + #exclude also things like 0_x 0___b that snuck past our prefix test + if {![string is digit -strict [string map {_ ""} $testnum]]} { + return 0 + } + #assert - only digits and underscores in testnum + #still may have underscores at each end + } + #assert testnum is now the 'digits' portion of a , 0x 0b 0o number + #(+ and - already stripped) + #It may still have chars unsuitable for its type - which will be caught by the string::is::integer test below + if {[string length $testnum] != [string length [string trim $testnum _]]} { + #had non-inner underscores in 'digit' part + return 0 + } + #assert str only has solo inner underscores (if any) between 'digits' + #------------------------------------------- + + set numeric_value [tcl::string::map {_ ""} $str] ;#allow some earlier tcl versions which don't support underscores + #use Tcl's integer check to ensure we don't let things like 3e4 through - which is a float (would need to be 0x3e4 for hex) + if {![tcl::string::is integer -strict $numeric_value]} { + return 0 + } + #!todo - check bounds only based on some config value + #even though Tcl can handle bignums, we won't accept anything outside of toml 1.0 minimum requirements. + #presumably very large numbers would have to be supplied in a toml file as strings. + #Review - toml 1.0 only says that it must handle up to 2^63 - not that this is a max + if {$numeric_value > $::tomlish::max_int} { + return 0 + } + if {$numeric_value < $::tomlish::min_int} { + return 0 + } + } else { + return 0 + } + #Got this far - didn't find anything wrong with it. + return 1 + } + + #test only that the characters in str are valid for the toml specified type 'float'. + proc float_validchars {str} { + set numchars [tcl::string::length $str] + if {[regexp -all {[eE0-9\_\-\+\.]} $str] == $numchars} { + return 1 + } else { + #only allow lower case for these special values - as per Toml 1.0 spec + if {$str ni {inf +inf -inf nan +nan -nan}} { + return 0 + } else { + return 1 + } + } + } + + #note - Tcl's string is double will return true also for the subset of float values which are integers + #This function is to determine whether it matches the Toml float concept - so requires a . or e or E + proc is_float {str} { + #vip greenlight known literals, don't test for case variations - as Toml doesn't allow (whereas Tcl allows Inf NaN etc) + if {$str in {inf +inf -inf nan +nan -nan}} { + return 1 + } + #doorcheck the basics for floatiness vs members of that rival gang - ints + if {![regexp {[.eE]} $str]} { + #could be an integer - which isn't specifically a float for Toml purposes. + return 0 + } + + + #patdown for any contraband chars + set matches [regexp -all {[eE0-9\_\-\+\.]} $str] + if {[tcl::string::length $str] != $matches} { + return 0 + } + + #all characters in legal range + + #A leading zero is ok, but we should disallow multiple leading zeroes (same rules as toml ints) + + #Early Toml spec also disallowed leading zeros in the exponent part(?) + #... this seems less interoperable anyway (some libraries generate leading zeroes in exponents) + #we allow leading zeros in exponents here. + + #Check for leading zeros in main part + #first strip any +, - or _ (just for this test) + set check [tcl::string::map {+ "" - "" _ ""} $str] + set r {([0-9])*} + regexp $r $check intpart ;#intpart holds all numerals before the first .,e or E + set z {([0])*} + regexp $z $intpart leadingzeros + if {[tcl::string::length $leadingzeros] > 1} { + return 0 + } + + #for floats, +,- may occur in multiple places + #e.g -2E-22 +3e34 + #!todo - check bounds ? + + #----------------------------------------- + if {[regexp {__} $str]} { + return 0 + } + if {[string index $str 0] eq "_" || [string index $str end] eq "_"} { + return 0 + } + set utest [string trimleft $str +-] + #test again for further trick like _+_ + if {[string index $utest 0] eq "_"} { + return 0 + } + #----------------------------------------- + + #decimal point, if used must be surrounded by at least one digit on each side + #e.g 3.e+20 also illegal + set dposn [string first . $str] + if {$dposn > -1 } { + set d3 [string range $str $dposn-1 $dposn+1] + if {![string is integer -strict [string index $d3 0]] || ![string is integer -strict [string index $d3 2]]} { + return 0 + } + } + #we've already eliminated leading/trailing underscores + #now ensure each inner underscore is surrounded by digits + if {[regexp {_[^0-9]|[^0-9]_} $str]} { + return 0 + } + + #strip underscores for tcl double check so we can support < tcl 9 versions which didn't allow underscores + set check [tcl::string::map {_ ""} $str] + #string is double accepts inf nan +NaN etc. + if {![tcl::string::is double $check]} { + return 0 + } + + #All good - seems to be a toml-approved float and not an int. + return 1 + } + + #test only that the characters in str are valid for the toml specified type 'datetime'. + proc datetime_validchars {str} { + set numchars [tcl::string::length $str] + if {[regexp -all {[zZtT0-9\-\+\.:]} $str] == $numchars} { + return 1 + } else { + return 0 + } + } + + #review - we + proc is_datetime {str} { + #e.g 1979-05-27 + #e.g 1979-05-27T00:32:00Z + #e.g 1979-05-27 00:32:00-07:00 + #e.g 1979-05-27 00:32:00+10:00 + #e.g 1979-05-27 00:32:00.999999-07:00 + + #review + #minimal datetimes? + # 2024 ok - shortest valid 4 digit year? + # 02:00 ok + # 05-17 ok + if {[string length $str] < 4} { + return 0 + } + + set matches [regexp -all {[zZtT0-9\-\+\.:]} $str] + if {[tcl::string::length $str] == $matches} { + #all characters in legal range + #!todo - use full RFC 3339 parser? + lassign [split $str T] datepart timepart + #!todo - what if the value is 'time only'? + + #Tcl's free-form clock scan (no -format option) is deprecated + # + #if {[catch {clock scan $datepart} err]} { + # puts stderr "tcl clock scan failed err:'$err'" + # return 0 + #} + + #!todo - verify time part is reasonable + } else { + return 0 + } + return 1 + } + + + #*** !doctools + #[list_end] [comment {--- end definitions namespace tomlish::utils ---}] +} + +namespace eval tomlish::parse { + #*** !doctools + #[subsection {Namespace tomlish::parse}] + #[para] + #[list_begin definitions] + + #This is a somewhat curly mix of a statemachine and toml-nesting-stack littered with special cases. + #The code is a pig's-nest - but it should be noted that for example trailing single double quotes in multiline strings are perhaps not so trivial to parse using more standard methods either: + # - e.g some kind of backtracking required if using an ABNF parser? + #I don't know the precise technical name for this sort of parser; probably something like "Dog's Breakfast" + #More seriously, we don't have distinct lex/parse steps - so it is basically a 'fused lexer' or 'scannerless parser' + + #It is also desirable for this system to be useful in 'interactive' use. review - would a separate lexer make this easier or harder? + + #A possible alternative more structured approach might be to use a PEG (Parsing Expression Grammar) + + + variable is_parsing 0 ;#whether we are in the middle of parsing tomlish text + + variable state + # states: + # table-space, itable-space, array-space + # array-value-expected,keyval-value-expected,itable-keyval-value-expected, keyval-syntax, + # quoted-key, squoted-key + # string-state, literal-state, multistring... + # + # notes: + # only the -space states are also 'spaces' ie a container which is pushed/popped on the spacestack + + # + # xxx_value-expected - we also allow for leading whitespace in this state, but once a value is returned we jump to a state based on the containing space. e.g keyval-tail or array-syntax + # + #stateMatrix defines for each state, actions to take for each possible token. + #single-element actions are the name of the next state into which to transition, or a 'POPSPACE' instruction to pop a level off the spacestack and add the data to the parent container. + #dual-element actions are a push instruction and the name of the space to push on the stack. + # - PUSHSPACE is a simple push onto the spacestack, zeropoppushspace also pushes, but will first do a pop *if* the current space level is greater than zero (ie if only if not already in root table-space) + + # -- --- --- --- --- --- + #token/state naming guide + # -- --- --- --- --- --- + #tokens : underscore separated or bare name e.g newline, start_quote, start_squote + #private tokens: always have a leading underscore (These are private 'temporary state' tokens that are never returned as actual tokens e.g _start_squote_sequence + #states : always contain at least one dash e.g err-state, table-space + #instructions + # -- --- --- --- --- --- + + + #stateMatrix dict of elements mapping current state to next state based on returned tokens + # current-state {token-encountered next-state ... } + # where next-state can be a 1 or 2 element list. + #If 2 element - the first item is an instruction (ucase) + #If 1 element - it is either a lowercase dashed state name or an ucase instruction + #e.g {PUSHSPACE } or POPSPACE or SAMESPACE + + + #SAMESPACE - got to same space as parent without popping a level, but has it's own autotransition lookup - strange concept - review usecases + + variable stateMatrix + set stateMatrix [dict create] + + #xxx-space vs xxx-syntax inadequately documented - TODO + + #review - out of date? + # --------------------------------------------------------------------------------------------------------------# + # incomplete example of some state starting at table-space + # --------------------------------------------------------------------------------------------------------------# + # ( = -> keyval-value-expected) + # keyval-syntax (popped -> keyval-space -> keyval-tail) (autotransition on pop) + # keyval-space (autotransition on push ^) + # table-space (barekey^) (startdquote -> dquoted-key ^) + # --------------------------------------------------------------------------------------------------------------# + + dict set stateMatrix\ + table-space { + bom "table-space"\ + whitespace "table-space"\ + newline "table-space"\ + barekey {PUSHSPACE "keyval-space" state "keyval-syntax"}\ + squotedkey {PUSHSPACE "keyval-space" state "keyval-syntax" note ""}\ + dquotedkey {PUSHSPACE "keyval-space" state "keyval-syntax"}\ + XXXstartquote "quoted-key"\ + XXXstartsquote "squoted-key"\ + comment "table-space"\ + starttablename "tablename-state"\ + starttablearrayname "tablearrayname-state"\ + startmultiquote "err-state"\ + endquote "err-state"\ + comma "err-state"\ + eof "end-state"\ + equal "err-state"\ + cr "err-lonecr"\ + } + + #itable-space/ curly-syntax : itables + dict set stateMatrix\ + itable-space {\ + whitespace "itable-space"\ + newline "itable-space"\ + barekey {PUSHSPACE "itable-keyval-space" state "itable-keyval-syntax"}\ + squotedkey {PUSHSPACE "itable-keyval-space" state "itable-keyval-syntax"}\ + dquotedkey {PUSHSPACE "itable-keyval-space" state "itable-keyval-syntax"}\ + endinlinetable "POPSPACE"\ + XXXstartquote "quoted-key"\ + XXXstartsquote {TOSTATE "squoted-key" comment "jn-testing"}\ + comma "err-state"\ + comment "itable-space"\ + eof "err-state"\ + } + #squote_seq_begin {PUSHSPACE "leading-squote-space" returnstate itable-space starttok {squote_seq "'"}} + + + dict set stateMatrix\ + keyval-space {\ + whitespace "keyval-syntax"\ + equal "keyval-value-expected"\ + } + + # ' = ' portion of keyval + dict set stateMatrix\ + keyval-syntax {\ + whitespace "keyval-syntax"\ + barekey {PUSHSPACE "dottedkey-space"}\ + squotedkey {PUSHSPACE "dottedkey-space"}\ + dquotedkey {PUSHSPACE "dottedkey-space"}\ + equal "keyval-value-expected"\ + comma "err-state"\ + newline "err-state"\ + eof "err-state"\ + } + #### + dict set stateMatrix\ + keyval-value-expected {\ + whitespace "keyval-value-expected"\ + untyped_value {TOSTATE "keyval-tail" note ""}\ + startquote {TOSTATE "string-state" returnstate keyval-tail}\ + startmultiquote {PUSHSPACE "multistring-space" returnstate keyval-tail}\ + squote_seq_begin {PUSHSPACE "leading-squote-space" returnstate keyval-value-expected starttok {squote_seq "'"}}\ + startsquote {TOSTATE "literal-state" returnstate keyval-tail note "usual way a literal is triggered"}\ + double_squote {TOSTATE "keyval-tail" note "empty literal received when double squote occurs"}\ + triple_squote {PUSHSPACE "multiliteral-space" returnstate keyval-tail}\ + startinlinetable {PUSHSPACE itable-space returnstate keyval-tail}\ + startarray {PUSHSPACE array-space returnstate keyval-tail}\ + } + #squote_seq_begin {PUSHSPACE "leading-squote-space" returnstate keyval-process-leading-squotes starttok {squote_seq "'"}} + dict set stateMatrix\ + leading-squote-space {\ + squote_seq "POPSPACE"\ + } + #dict set stateMatrix\ + # keyval-process-leading-squotes {\ + # startsquote "literal-state"\ + # triple_squote {PUSHSPACE "multiliteral-space" returnstate keyval-tail}\ + # } + + dict set stateMatrix\ + keyval-tail {\ + whitespace "keyval-tail"\ + newline "POPSPACE"\ + comment "keyval-tail"\ + eof "end-state"\ + } + + dict set stateMatrix\ + itable-keyval-syntax {\ + whitespace "itable-keyval-syntax"\ + barekey {PUSHSPACE "dottedkey-space"}\ + squotedkey {PUSHSPACE "dottedkey-space"}\ + dquotedkey {PUSHSPACE "dottedkey-space"}\ + equal "itable-keyval-value-expected"\ + newline "err-state"\ + eof "err-state"\ + } + dict set stateMatrix\ + itable-keyval-value-expected {\ + whitespace "itable-keyval-value-expected"\ + untyped_value {TOSTATE "itable-val-tail" note ""}\ + startquote {TOSTATE "string-state" returnstate itable-val-tail}\ + startmultiquote {PUSHSPACE "multistring-space" returnstate itable-val-tail}\ + squote_seq_begin {PUSHSPACE "leading-squote-space" returnstate itable-keyval-value-expected starttok {squote_seq "'"}}\ + startsquote {TOSTATE "literal-state" returnstate itable-val-tail note "usual way a literal is triggered"}\ + double_squote {TOSTATE "itable-val-tail" note "empty literal received when double squote occurs"}\ + triple_squote {PUSHSPACE "multiliteral-space" returnstate itable-val-tail}\ + startinlinetable {PUSHSPACE "itable-space" returnstate itable-val-tail}\ + startarray {PUSHSPACE "array-space" returnstate itable-val-tail}\ + } + dict set stateMatrix\ + itable-keyval-space {\ + whitespace "itable-keyval-syntax"\ + equal {TOSTATE "itable-keyval-value-expected" note "required"}\ + } + + dict set stateMatrix\ + itable-val-tail {\ + whitespace "itable-val-tail"\ + endinlinetable "POPSPACE"\ + comma "POPSPACE"\ + XXXnewline {TOSTATE "itable-val-tail" note "itable-space ??"}\ + newline "POPSPACE"\ + comment "itable-val-tail"\ + eof "err-state"\ + } + #dict set stateMatrix\ + # itable-quoted-key {\ + # whitespace "NA"\ + # itablequotedkey {PUSHSPACE "itable-keyval-space"}\ + # newline "err-state"\ + # endquote "itable-keyval-syntax"\ + # } + #dict set stateMatrix\ + # itable-squoted-key {\ + # whitespace "NA"\ + # itablesquotedkey {PUSHSPACE "itable-keyval-space"}\ + # newline "err-state"\ + # endsquote "itable-keyval-syntax"\ + # } + + + + + #array-value-expected ? + dict set stateMatrix\ + XXXvalue-expected {\ + whitespace "value-expected"\ + untyped_value {"SAMESPACE" "" replay untyped_value}\ + startquote "string-state"\ + startsquote "literal-state"\ + triple_squote {PUSHSPACE "multiliteral-space"}\ + startmultiquote {PUSHSPACE "multistring-space"}\ + startinlinetable {PUSHSPACE itable-space}\ + startarray {PUSHSPACE array-space}\ + comment "err-state-value-expected-got-comment"\ + comma "err-state"\ + newline "err-state"\ + eof "err-state"\ + } + #note comment token should never be delivered to array-value-expected state? + + #dottedkey-space is not (currently) used within [tablename] or [[tablearrayname]] + #it is for keyval ie x.y.z = value + + #this is the state after dot + #we are expecting a complete key token or whitespace + #(initial entry to the space is by one of the keys - which will immediately go to dottedkey-space-tail) + dict set stateMatrix\ + dottedkey-space {\ + whitespace "dottedkey-space"\ + dotsep "err-state"\ + barekey "dottedkey-space-tail"\ + squotedkey "dottedkey-space-tail"\ + dquotedkey "dottedkey-space-tail"\ + newline "err-state"\ + comma "err-state"\ + comment "err-state"\ + equal "err-state"\ + } + #dottedkeyend "POPSPACE" + #equal "POPSPACE"\ + + #jmn 2025 + #we have 1 or more dottedkeys so far - need dotsep to add more, whitespace to maintain, equal to pop + dict set stateMatrix\ + dottedkey-space-tail {\ + whitespace "dottedkey-space-tail" + dotsep "dottedkey-space" + equal "POPSPACE"\ + } + + #-------------------------------------------------------------------------- + #scratch area + #from_toml {x=1} + # barekey tok + # table-space PUSHSPACE keyval-space state keyval-syntax + # + + + #-------------------------------------------------------------------------- + + + #REVIEW + #toml spec looks like heading towards allowing newlines within inline tables + #https://github.com/toml-lang/toml/issues/781 + + #2025 - appears to be valid for 1.1 - which we are targeting. + #https://github.com/toml-lang/toml/blob/main/toml.md#inline-table + + #JMN2025 + #dict set stateMatrix\ + # curly-syntax {\ + # whitespace "curly-syntax"\ + # newline "curly-syntax"\ + # barekey {PUSHSPACE "itable-keyval-space"}\ + # itablequotedkey "itable-keyval-space"\ + # endinlinetable "POPSPACE"\ + # startquote "itable-quoted-key"\ + # comma "itable-space"\ + # comment "itable-space"\ + # eof "err-state"\ + # } + #review comment "err-state" vs comment "itable-space" - see if TOML 1.1 comes out and allows comments in multiline ITABLES + #We currently allow multiline ITABLES (also with comments) in the tokenizer. + #if we want to disallow as per TOML 1.0 - we should do so when attempting to get structure? + + + #JMN REVIEW + #dict set stateMatrix\ + # array-space {\ + # whitespace "array-space"\ + # newline "array-space"\ + # untyped_value "SAMESPACE"\ + # startarray {PUSHSPACE "array-space"}\ + # endarray "POPSPACE"\ + # startmultiquote {PUSHSPACE multistring-space}\ + # startinlinetable {PUSHSPACE itable-space}\ + # startquote "string-state"\ + # startsquote "literal-state"\ + # triple_squote {PUSHSPACE "multiliteral-space" returnstate array-syntax note "seems ok 2024"}\ + # comma "array-space"\ + # comment "array-space"\ + # eof "err-state-array-space-got-eof"\ + # } + + ## array-space ## + set aspace [dict create] + dict set aspace whitespace "array-space" + dict set aspace newline "array-space" + dict set aspace untyped_value "SAMESPACE" + dict set aspace startarray {PUSHSPACE "array-space"} + dict set aspace endarray "POPSPACE" + dict set aspace startmultiquote {PUSHSPACE multistring-space} + dict set aspace startinlinetable {PUSHSPACE itable-space} + dict set aspace startquote "string-state" + dict set aspace startsquote "literal-state" + dict set aspace triple_squote {PUSHSPACE "multiliteral-space" returnstate array-syntax note "seems ok 2024"} + dict set aspace comma "array-space" + dict set aspace comment "array-space" + dict set aspace eof "err-state-array-space-got-eof" + dict set stateMatrix array-space $aspace + + #when we pop from an inner array we get to array-syntax + #e.g {x=[[]] ??? + set tarntail [dict create] + dict set tarntail whitespace "tablearrayname-tail" + dict set tarntail newline "err-state" + dict set tarntail comment "err-state" + dict set tarntail eof "err-state" + dict set tarntail endtablename "tablearray-tail" + dict set stateMatrix tablearrayname-tail $tarntail + + #review - somewhat counterintuitive...? + # [(starttablearrayname) (endtablearrayname] + # [(starttablename) (endtablename)] + + # [[xxx]] ??? + set tartail [dict create] + dict set tartail whitespace "tablearray-tail" + dict set tartail newline "table-space" + dict set tartail comment "tablearray-tail" + dict set tartail eof "end-state" + dict set stateMatrix tablearray-tail $tartail + + + + + + + dict set stateMatrix\ + end-state {} + + set knowntokens [list] + set knownstates [list] + dict for {state transitions} $stateMatrix { + if {$state ni $knownstates} {lappend knownstates $state} + dict for {tok instructions} $transitions { + if {$tok ni $knowntokens} {lappend knowntokens $tok} + } + } + dict set stateMatrix nostate {} + foreach tok $knowntokens { + dict set stateMatrix nostate $tok "err-nostate-received-token-$tok" + } + + + # -- --- --- --- --- --- --- --- --- --- --- --- --- --- --- + #purpose - debugging? remove? + # -- --- --- --- --- --- --- --- --- --- --- --- --- --- --- + #build a list of 'push triggers' from the stateMatrix + # ie tokens which can push a new space onto spacestack + set push_trigger_tokens [list] + tcl::dict::for {s transitions} $stateMatrix { + tcl::dict::for {token transition_to} $transitions { + set instruction [lindex $transition_to 0] + switch -exact -- $instruction { + PUSHSPACE - zeropoppushspace { + if {$token ni $push_trigger_tokens} { + lappend push_trigger_tokens $token + } + } + } + } + } + ::tomlish::log::debug "push_trigger_tokens: $push_trigger_tokens" + # -- --- --- --- --- --- --- --- --- --- --- --- --- --- --- + + + + #This seems hacky... (deprecate in favour of explicit arguments to the instructions in stateMatrix?) + #spacePopTransitions, spacePushTransitions, spaceSameTransitions below for auto state redirections on POPSPACE,PUSHSPACE,SAMESPACE + + #mainly for the -space states: + #redirect to another state $c based on a state transition from $whatever to $b + # e.g "string {array-space array-syntax}" means when transitioning from string to array-space, jump to array-syntax instead. + #this is useful as we often don't know state $b. e.g when it is decided by 'POPSPACE' + + #use dict set to add values so we can easily add/remove/comment lines + + #Push to, next + #default first states when we push to these spaces + variable spacePushTransitions [dict create] + dict set spacePushTransitions keyval-space keyval-syntax + dict set spacePushTransitions itable-keyval-space itable-keyval-syntax + dict set spacePushTransitions array-space array-space + dict set spacePushTransitions table-space tablename-state + dict set spacePushTransitions #itable-space itable-space + + #Pop to, next + variable spacePopTransitions [dict create] + dict set spacePopTransitions array-space array-syntax + + + #itable-space curly-syntax + #itable-keyval-space itable-val-tail + #review + #we pop to keyval-space from dottedkey-space or from keyval-value-expected? we don't always want to go to keyval-tail + #leave it out and make the POPSPACE caller explicitly specify it + #keyval-space keyval-tail + + variable spaceSameTransitions [dict create] + #JMN test + #dict set spaceSameTransitions array-space array-syntax + + #itable-space curly-syntax + #itable-keyval-space itable-val-tail + + + variable state_list ;#reset every tomlish::decode::toml + + namespace export tomlish toml + namespace ensemble create + + #goNextState has various side-effects e.g pushes and pops spacestack + #REVIEW - setting nest and v elements here is ugly + #todo - make neater, more single-purpose? + proc goNextState {tokentype tok currentstate} { + variable state + variable nest + variable v + + set prevstate $currentstate + + + variable spacePopTransitions + variable spacePushTransitions + variable spaceSameTransitions + + variable last_space_action "none" + variable last_space_type "none" + variable state_list + + set result "" + set starttok "" + + if {[dict exists $::tomlish::parse::stateMatrix $currentstate $tokentype]} { + set transition_to [dict get $::tomlish::parse::stateMatrix $currentstate $tokentype] + ::tomlish::log::debug "--->> goNextState tokentype:$tokentype tok:$tok currentstate:$currentstate : transition_to = $transition_to" + switch -exact -- [lindex $transition_to 0] { + POPSPACE { + spacestack pop + set parent_info [spacestack peek] + set type [dict get $parent_info type] + set parentspace [dict get $parent_info state] + + set last_space_action "pop" + set last_space_type $type + + if {[dict exists $parent_info returnstate]} { + set next [dict get $parent_info returnstate] + #clear the returnstate on current level + set existing [spacestack pop] + dict unset existing returnstate + spacestack push $existing ;#re-push modification + ::tomlish::log::info "--->> POPSPACE transition to parent space $parentspace redirected to stored returnstate $next <<---" + } else { + ### + #review - do away with spacePopTransitions - which although useful to provide a default.. + # - involve error-prone configurations distant to the main state transition configuration in stateMatrix + if {[dict exists $::tomlish::parse::spacePopTransitions $parentspace]} { + set next [dict get $::tomlish::parse::spacePopTransitions $parentspace] + ::tomlish::log::info "--->> POPSPACE transition to parent space $parentspace redirected state to $next (spacePopTransitions)<<---" + } else { + set next $parentspace + ::tomlish::log::info "--->> POPSPACE transition to parent space $parentspace<<---" + } + } + set result $next + } + SAMESPACE { + set currentspace_info [spacestack peek] + ::tomlish::log::debug "--->> SAMESPACE got current space entry: $currentspace_info <<<<<" + set type [dict get $currentspace_info type] + set currentspace [dict get $currentspace_info state] + + if {[dict exists $currentspace_info returnstate]} { + set next [dict get $currentspace_info returnstate] + #clear the returnstate on current level + set existing [spacestack pop] + dict unset existing returnstate + spacestack push $existing ;#re-push modification + ::tomlish::log::info "--->> SAMESPACE transition to space $currentspace redirected to stored returnstate $next" + } else { + if {[dict exists $::tomlish::parse::spaceSameTransitions $currentspace]} { + set next [dict get $::tomlish::parse::spaceSameTransitions $currentspace] + ::tomlish::log::info "--->> SAMESPACE transition to space $currentspace redirected state to $next (spaceSameTransitions)" + } else { + set next $currentspace + ::tomlish::log::info "--->> SAMESPACE transition to space $currentspace" + } + } + set result $next + } + zeropoppushspace { + if {$nest > 0} { + #pop back down to the root level (table-space) + spacestack pop + set parentinfo [spacestack peek] + set type [dict get $parentinfo type] + set target [dict get $parentinfo state] + + set last_space_action "pop" + set last_space_type $type + + #----- + #standard pop + set parentlevel [expr {$nest -1}] + lappend v($parentlevel) [set v($nest)] + incr nest -1 + #----- + } + #re-entrancy + + #set next [list PUSHSPACE [lindex $transition_to 1]] + set nexttokentype ${tokentype}2 ;#fake token type e.g tablename2 or tablearrayname2 + #::tomlish::log::notice "goNextState REENTRANCY. calling goNextState $nexttokentype $tokentype" + #set result [::tomlish::parse::goNextState $nexttokentype $tokentype] + ::tomlish::log::debug "--->> zeropoppushspace goNextState REENTRANCY. calling goNextState $nexttokentype $currentstate" + set transition_info [::tomlish::parse::goNextState $nexttokentype $tok $currentstate] + set result [dict get $transition_info newstate] + } + PUSHSPACE { + set original_target [dict get $transition_to PUSHSPACE] + if {[dict exists $transition_to returnstate]} { + #adjust the existing space record on the stack. + #struct::stack doesn't really support that - so we have to pop and re-push + #todo - investigate a custom stack implementation where we can efficiently lset the top of the stack + set currentspace [spacestack pop] + dict set currentspace returnstate [dict get $transition_to returnstate] + spacestack push $currentspace ;#return modified info to stack so when we POPSPACE the returnstate is available. + } + if {[dict exists $transition_to starttok]} { + set starttok [dict get $transition_to starttok] + } + spacestack push [dict create type space state $original_target] + + set last_space_action "push" + set last_space_type "space" + + if {[dict exists $transition_to state]} { + #an explicit state in the pushed space was requested in the stateMatrix - override the spacePushTransition (spacePushTransitions can be deprecated if we require explicitness?) + set next [dict get $transition_to state] + ::tomlish::log::info "--->> PUSHSPACE transition to space $original_target redirected state to $next by explicit 'state' entry" + } else { + #puts $::tomlish::parse::spacePushTransitions + if {[dict exists $::tomlish::parse::spacePushTransitions $original_target]} { + set next [dict get $::tomlish::parse::spacePushTransitions $original_target] + ::tomlish::log::info "--->> PUSHSPACE transition to space $original_target redirected state to $next (spacePushTransitions) " + } else { + set next $original_target + ::tomlish::log::info "--->> PUSHSPACE transition to space $original_target" + } + } + set result $next + } + TOSTATE { + if {[dict exists $transition_to returnstate]} { + #adjust the existing space record on the stack. + #struct::stack doesn't really support that - so we have to pop and re-push + #todo - investigate a custom stack implementation where we can efficiently lset the top of the stack + set currentspace [spacestack pop] + dict set currentspace returnstate [dict get $transition_to returnstate] + spacestack push $currentspace ;#return modified info to stack so when we POPSPACE the returnstate is available. + } + set result [dict get $transition_to TOSTATE] + } + default { + #simplified version of TOSTATE + set result [lindex $transition_to 0] ;#ignore everything but first word + } + } + } else { + ::tomlish::log::error "--->> No state transition defined from state $currentstate when tokentype $tokentype received" + set result "nostate" + } + lappend state_list [list tokentype $tokentype from $currentstate to $result] + set state $result + ::tomlish::log::notice "--->> STATE TRANSITION tokenType: '$tokentype' tok:$tok triggering '$currentstate' -> '$result' last_space_action:$last_space_action " + return [dict create prevstate $prevstate newstate $result space_action $last_space_action starttok $starttok] + } + + proc report_line {{line ""}} { + variable linenum + variable is_parsing + if {$is_parsing} { + if {$line eq ""} { + set line $linenum + } + return "Line Number: $line" + } else { + #not in the middle of parsing tomlish text - return nothing. + return "" + } + } + + #produce a *slightly* more readable string rep of the nest for puts etc. + proc nest_pretty1 {list} { + set prettier "{" + + foreach el $list { + if { [lindex $el 0] eq "NEWLINE"} { + append prettier "[list $el]\n" + } elseif {([llength $el] > 1) && ([lindex $el 0] in {KEY DQKEY SQKEY TABLE ARRAY})} { + append prettier [nest_pretty1 $el] + } else { + append prettier "[list $el] " + } + } + append prettier "}" + return $prettier + } + + proc set_tokenType {t} { + variable tokenType + variable tokenType_list + if {![info exists tokenType]} { + set tokenType "" + } + lappend tokenType_list $t + set tokenType $t + } + + proc switch_tokenType {t} { + variable tokenType + variable tokenType_list + lset tokenType_list end $t + set tokenType $t + } + + proc get_tokenType {} { + variable tokenType + return $tokenType + } + + proc _shortcircuit_startquotesequence {} { + variable tok + variable i + set toklen [tcl::string::length $tok] + if {$toklen == 1} { + set_tokenType "startquote" + incr i -1 + return -level 2 1 + } elseif {$toklen == 2} { + puts stderr "_shortcircuit_startquotesequence toklen 2" + set_tokenType "startquote" + set tok "\"" + incr i -2 + return -level 2 1 + } + } + + proc get_token_waiting {} { + variable token_waiting + return [lindex $token_waiting 0] + } + proc clear_token_waiting {} { + variable token_waiting + set token_waiting [list] + } + + #token_waiting is a list - but our standard case is to have only one + #in certain circumstances such as near eof we may have 2 + #the set_token_waiting function only allows setting when there is not already one waiting. + #we want to catch cases of inadvertently trying to set multiple + # - the reason being that the state transition triggered by the previous token may have invalidated the assumptions made when a token was added as waiting. + proc set_token_waiting {args} { + if {[llength $args] %2 != 0} { + error "tomlish set_token_waiting must have args of form: type value complete 0|1" + } + variable token_waiting + + if {[llength $token_waiting] && [dict get [lindex $token_waiting end] type] ne "eof"} { + #tokloop already set a token_waiting - but something (post tokloop processing?) is trying to set another + #we may need to remove the existing token_waiting and reset the tokloop index to the previous char so it's reprocessed in the possibly new context + #rather than attempt to make the right decision here - we raise an error and require the caller to check/handle it + set err "tomlish set_token_waiting already has token_waiting: [lindex $token_waiting 0]" + append err \n " - cannot add token_waiting: $args" + error $err + #set tomlish::parse::i [expr {[dict get $token_waiting startindex] -1}] + #set token_waiting [list] + } + + set waiting [dict create] + dict for {k v} $args { + switch -exact $k { + type - complete { + dict set waiting $k $v + } + value { + dict set waiting tok $v + } + startindex { + dict set waiting startindex $v + } + default { + error "tomlish set_token_waiting error - unrecognised key $k. known keys: [dict keys $args]" + } + } + } + if {![tcl::string::is boolean -strict [dict get $waiting complete]]} { + error "tomlish set_token_waiting error - 'complete' must be a boolean. got [dict get $waiting complete]" + } + if {![llength $token_waiting]} { + set token_waiting [list $waiting] + } else { + #an extra sanity-check that we don't have more than just the eof.. + if {[llength $token_waiting] > 1} { + set err "tomlish Unexpected. Existing token_waiting count > 1.\n" + foreach tw $token_waiting { + append err " $tw" \n + } + append err " - cannot add token_waiting: $waiting" + error $err + } + #last entry must be a waiting eof + set token_waiting [list $waiting [lindex $token_waiting end]] + } + return + } + + #returns 0 or 1 + #tomlish::parse::tok + #we attempt to do this without lookahead (potential use in streaming toml? for what benefit?) todo -final flag + # - the possible benefit is being able to more easily process in arbitrarily split chunks (although we would still have to watch crlf splitting ?) + # - interactive use? + + proc tok {s} { + variable nest + variable v + variable i + variable tok + variable type ;#character type + variable state ;#FSM + + + variable tokenType + variable tokenType_list + + + variable endToken + + variable lastChar + + variable braceCount + variable bracketCount + + + #------------------------------ + #Previous run found another (presumably single-char) token + #The normal case is for there to be only one dict in the list + #multiple is an exception - primarily for eof + variable token_waiting + if {[llength $token_waiting]} { + set waiting [lindex $token_waiting 0] + + set tokenType [dict get $waiting type] + set tok [dict get $waiting tok] + #todo: dict get $token_waiting complete + set token_waiting [lrange $token_waiting 1 end] + return 1 + } + #------------------------------ + + set resultlist [list] + set sLen [tcl::string::length $s] + + set slash_active 0 + set quote 0 + set c "" + set multi_dquote "" + for {} {$i < $sLen} {} { + if {$i > 0} { + set lastChar [tcl::string::index $s [expr {$i - 1}]] + } else { + set lastChar "" + } + + set c [tcl::string::index $s $i] + set cindex $i + set ctest [tcl::string::map {\{ lc \} rc \[ lb \] rb \" dq ' sq \\ bsl \r cr \n lf \t tab \uFEFF bom} $c] + tomlish::log::debug "- tokloop char <$ctest> index $i tokenType:$tokenType tok:<$tok>" + #puts "got char $c during tokenType '$tokenType'" + incr i ;#must incr here because we do returns inside the loop + + switch -exact -- $ctest { + # { + set dquotes $multi_dquote + set multi_dquote "" + set had_slash $slash_active + set slash_active 0 + + if {$had_slash} {append tok "\\"} ;#if tokentype not appropriate for \, we would already have errored out. + + if {[tcl::string::length $tokenType]} { + switch -exact -- $tokenType { + squote_seq { + incr i -1 + return 1 + } + startquotesequence { + _shortcircuit_startquotesequence + } + _start_squote_sequence { + incr i -[tcl::string::length $tok] + set_tokenType "startsquote" + return 1 + } + barekey { + error "tomlish Unexpected character '$c' during bare key. Only \[a-zA-Z0-9_-\] and a selection of letter-like chars allowed (see tomlish::utils::is_barekey). [tomlish::parse::report_line]" + } + whitespace { + # hash marks end of whitespace token + #do a return for the whitespace, set token_waiting + #set_token_waiting type comment value "" complete 1 + incr i -1 ;#leave comment for next run + return 1 + } + untyped_value { + #REVIEW! the spec isn't clear.. is whitespace after an int,bool etc required before comment? + #we will accept a comment marker as an immediate terminator of the untyped_value. + incr i -1 + return 1 + } + starttablename - starttablearrayname { + #fix! + error "tomlish Character '#' is invalid first character for $tokenType. [tomlish::parse::report_line]" + } + tablename - tablearrayname { + #invalid in bare parts - but allowed in quoted parts - let tablename parser sort it out + append tok $c + } + default { + #dquotedkey, itablequotedkey, string,literal, multistring + append tok $c + } + } + } else { + switch -- $state { + multistring-space { + set_tokenType stringpart + set tok "" + if {$had_slash} { + append tok "\\" + } + append tok "$dquotes#" + } + multiliteral-space { + set_tokenType "literalpart" + set tok "#" + } + default { + #start of token if we're not in a token + set_tokenType comment + set tok "" ;#The hash is not part of the comment data + } + } + } + } + lc { + #left curly brace + set dquotes $multi_dquote + set multi_dquote "" + set had_slash $slash_active + set slash_active 0 + + if {[tcl::string::length $tokenType]} { + switch -exact -- $tokenType { + squote_seq { + incr i -1 + return 1 + } + startquotesequence { + _shortcircuit_startquotesequence + } + _start_squote_sequence { + incr i -[tcl::string::length $tok] + set_tokenType "startsquote" + return 1 + } + literal - literalpart - squotedkey { + append tok $c + } + string - dquotedkey { + if {$had_slash} {append tok "\\"} + append tok $c + } + stringpart { + if {$had_slash} {append tok "\\"} + append tok $dquotes$c + } + starttablename - starttablearrayname { + #*bare* tablename can only contain letters,digits underscores + error "tomlish Invalid tablename first character \{ [tomlish::parse::report_line]" + } + tablename - tablearrayname { + #valid in quoted parts + append tok $c + } + comment { + if {$had_slash} {append tok "\\"} + append tok "\{" + } + default { + #end any other token. + incr i -1 + return 1 + } + } + } else { + switch -exact -- $state { + itable-keyval-value-expected - keyval-value-expected { + #switch last key to tablename?? + set_tokenType "startinlinetable" + set tok "\{" + return 1 + } + array-space - array-syntax { + #nested anonymous inline table + set_tokenType "startinlinetable" + set tok "\{" + return 1 + } + table-space { + #invalid - but allow parser statemachine to report it. ? + set_tokenType "startinlinetable" + set tok "\{" + return 1 + } + multistring-space { + set_tokenType "stringpart" + set tok "" + if {$had_slash} { + append tok "\\" + } + append tok "$dquotes\{" + } + multiliteral-space { + set_tokenType "literalpart" + set tok "\{" + } + default { + error "tomlish state: '$state'. left brace case not implemented [tomlish::parse::report_line]" + } + } + } + + } + rc { + #right curly brace + set dquotes $multi_dquote + set multi_dquote "" + set had_slash $slash_active + set slash_active 0 + + if {[tcl::string::length $tokenType]} { + switch -exact -- $tokenType { + squote_seq { + incr i -1 + return 1 + } + startquotesequence { + _shortcircuit_startquotesequence + } + _start_squote_sequence { + incr i -[tcl::string::length $tok] + set_tokenType "startsquote" + return 1 + } + literal - literalpart - squotedkey { + append tok $c + } + XXXitablesquotedkey { + } + string - dquotedkey - itablequotedkey - comment { + if {$had_slash} {append tok "\\"} + append tok $c + } + stringpart { + if {$had_slash} {append tok "\\"} + append tok $dquotes$c + } + starttablename - tablename { + if {$had_slash} {append tok "\\"} + #invalid! - but leave for datastructure loading stage to catch + set_token_waiting type endinlinetable value "" complete 1 startindex $cindex + return 1 + } + starttablearrayname - tablearrayname { + if {$had_slash} {append tok "\\"} + #invalid! - but leave for datastructure loading stage to catch + set_token_waiting type endtablearrayname value "" complete 1 startindex $cindex + return 1 + } + default { + #end any other token + incr i -1 + return 1 + } + } + } else { + #$slash_active not relevant when no tokenType + switch -exact -- $state { + table-space { + #invalid - but allow parser statemachine to report it. ? + set_tokenType "endinlinetable" + set tok "\}" + return 1 + } + itable-space { + set_tokenType "endinlinetable" + set tok "\}" + return 1 + } + tablename-state { + #e.g [] - empty tablename - allowed or not? + #empty tablename/tablearrayname ? + #error "unexpected tablename problem" + + set_tokenType "endinlinetable" + set tok "" ;#no output into the tomlish list for this token + return 1 + } + tablearrayname-state { + error "tomlish unexpected tablearrayname-state problem" + set_tokenType "endinlinetable" + set tok "" ;#no output into the tomlish list for this token + return 1 + } + array-syntax - array-space { + #invalid + set_tokenType "endinlinetable" + set tok "\}" + return 1 + } + itable-val-tail { + set_tokenType "endinlinetable" + set tok "" + #we need to pop the keyval - and then reprocess to pop the inlinetable - so we incr -1 + incr i -1 + return 1 + } + itable-keyval-syntax { + error "tomlish endinlinetable unexpected at this point. Expecting key=val syntax [tomlish::parse::report_line]" + } + multistring-space { + set_tokenType "stringpart" + set tok "" + if {$had_slash} { + append tok "\\" + } + append tok "$dquotes\}" + } + multiliteral-space { + set_tokenType "literalpart" ; #review + set tok "\}" + } + default { + #JMN2024b keyval-tail? + error "tomlish state '$state'. endinlinetable case not implemented [tomlish::parse::report_line]" + } + } + } + + } + lb { + #left square bracket + set dquotes $multi_dquote + set multi_dquote "" + set had_slash $slash_active + set slash_active 0 + + if {[tcl::string::length $tokenType]} { + switch -exact -- $tokenType { + squote_seq { + incr i -1 + return 1 + } + startquotesequence { + _shortcircuit_startquotesequence + } + _start_squote_sequence { + incr i -[tcl::string::length $tok] + set_tokenType "startsquote" + return 1 + } + literal - literalpart - squotedkey { + append tok $c + } + string - dquotedkey - itablequotedkey { + if {$had_slash} {append tok "\\"} + append tok $c + } + stringpart { + if {$had_slash} {append tok "\\"} + append tok $dquotes$c + } + starttablename { + #change the tokenType + switch_tokenType "starttablearrayname" + set tok "" ;#no output into the tomlish list for this token + #any following whitespace is part of the tablearrayname, so return now + return 1 + } + tablename - tablearrayname { + #e.g a."x[0]".c is valid table name sequence - so we need to track quoting to know if rb is an end token + if {$had_slash} { + #resultant tablename may be invalid - but leave for datastructure loading stage to catch + #append tok "\\[" + append tok {\[} + } else { + if {[tomlish::utils::tok_in_quotedpart $tok] eq ""} { + #invalid at this point - state machine should disallow: + # table -> starttablearrayname + # tablearray -> starttablearrayname + set_token_waiting type starttablearrayname value "" complete 1 startindex $cindex + return 1 + } else { + #we appear to still be in single or double quoted section + append tok "\[" + } + } + } + comment { + if {$had_slash} {append tok "\\"} + append tok "\[" + } + default { + #end any other token. + incr i -1 + return 1 + } + } + } else { + #$slash_active not relevant when no tokenType + switch -exact -- $state { + keyval-value-expected - itable-keyval-value-expected { + set_tokenType "startarray" + set tok "\[" + return 1 + } + array-space - array-syntax { + #nested array? + set_tokenType "startarray" + set tok "\[" + return 1 + #error "state: array-space. startarray case not implemented [tomlish::parse::report_line]" + } + table-space { + #table name + #assume it's a single bracket - but we need to wait for non-bracket to confirm it's not a tablearray + #note that a starttablearrayname token may contain whitespace between the brackets + # e.g \[ \[ + set_tokenType "starttablename" + set tok "" ;#there is no output into the tomlish list for this token + } + multistring-space { + set_tokenType "stringpart" + set tok "" + if {$had_slash} { + append tok "\\" + } + append tok "$dquotes\[" + } + multiliteral-space { + set_tokenType "literalpart" + set tok "\[" + } + itable-space { + #handle state just to give specific error msg + error "tomlish state: '$state'. Left square bracket invalid. Cannot start array in inline table without key. Use key=\[\] syntax. [tomlish::parse::report_line]" + } + default { + error "tomlish state: '$state'. startarray case not implemented [tomlish::parse::report_line]" + } + } + } + } + rb { + #right square bracket + set dquotes $multi_dquote + set multi_dquote "" + set had_slash $slash_active + set slash_active 0 + + if {[tcl::string::length $tokenType]} { + switch -exact -- $tokenType { + squote_seq { + incr i -1 + return 1 + } + startquotesequence { + _shortcircuit_startquotesequence + } + _start_squote_sequence { + incr i -[tcl::string::length $tok] + set_tokenType "startsquote" + return 1 + } + literal - literalpart - squotedkey { + append tok $c + } + XXXitablesquotedkey { + } + string - dquotedkey - itablequotedkey { + if {$had_slash} {append tok "\\"} + append tok $c + } + stringpart { + if {$had_slash} {append tok "\\"} + append tok $dquotes$c + } + comment { + if {$had_slash} {append tok "\\"} + append tok $c + } + whitespace { + if {$state eq "multistring-space"} { + #???? + incr i -1 + if {$had_slash} {incr i -1} ;#reprocess + return 1 + } else { + incr i -1 + if {$had_slash} {incr i -1} ;#reprocess + return 1 + } + } + tablename { + #e.g a."x[0]".c is valid table name sequence - so we need to track quoting to know if rb is an end token + if {$had_slash} { + #resultant tablename may be invalid - but leave for datastructure loading stage to catch + append tok "\\]" + } else { + if {[tomlish::utils::tok_in_quotedpart $tok] eq ""} { + set_token_waiting type endtablename value "" complete 1 startindex $cindex + return 1 + } else { + #we appear to still be in single or double quoted section + append tok "]" + } + } + } + tablearrayname { + #e.g a."x[0]".c is valid table name sequence - so we need to track quoting to know if rb is an end token + if {$had_slash} { + #resultant tablename may be invalid - but leave for datastructure loading stage to catch + append tok "\\]" + } else { + if {[tomlish::utils::tok_in_quotedpart $tok] eq ""} { + set_token_waiting type endtablearrayname value "" complete 1 startindex $cindex + return 1 + } else { + #we appear to still be in single or double quoted section + append tok "]" + } + } + } + XXXtablearraynames { + puts "rb @ tablearraynames ??" + #switch? + + #todo? + if {$had_slash} {append tok "\\"} + #invalid! - but leave for datastructure loading stage to catch + set_token_waiting type endtablearrayname value "" complete 1 startindex $cindex + return 1 + } + default { + incr i -1 + return 1 + } + } + } else { + #$slash_active not relevant when no tokenType + switch -exact -- $state { + array-syntax - array-space { + #invalid - but allow parser statemachine to report it. + set_tokenType "endarray" + set tok "\]" + return 1 + } + table-space { + #invalid - but allow parser statemachine to report it. ? + set_tokenType "endarray" + set tok "\]" + return 1 + } + tablename-state { + #e.g [] - empty tablename - allowed or not? + #empty tablename/tablearrayname ? + #error "unexpected tablename problem" + + set_tokenType "endtablename" + set tok "" ;#no output into the tomlish list for this token + return 1 + } + tablearrayname-state { + error "tomlish unexpected tablearrayname problem" + set_tokenType "endtablearray" + set tok "" ;#no output into the tomlish list for this token + return 1 + } + tablearrayname-tail { + #[[xxx] + set_tokenType "endtablename" + #sequence: starttablename -> starttablearrayname -> endtablearrayname -> endtablename + return 1 + } + multistring-space { + set_tokenType "stringpart" + set tok "" + if {$had_slash} { + append tok "\\" + } + append tok "$dquotes\]" + } + multiliteral-space { + set_tokenType "literalpart" + set tok "\]" + } + default { + error "tomlish state '$state'. endarray case not implemented [tomlish::parse::report_line]" + } + } + } + } + bsl { + set dquotes $multi_dquote + set multi_dquote "" ;#!! + #backslash + if {[tcl::string::length $tokenType]} { + switch -exact -- $tokenType { + squote_seq { + incr i -1 + return 1 + } + startquotesequence { + _shortcircuit_startquotesequence + } + _start_squote_sequence { + incr i -[tcl::string::length $tok] + set_tokenType "startsquote" + return 1 + } + whitespace { + if {$state eq "multistring-space"} { + #end whitespace token + incr i -1 ;#reprocess bsl in next run + return 1 + } else { + error "tomlish Unexpected backslash during whitespace. [tomlish::parse::report_line]" + } + } + literal - literalpart - squotedkey { + #never need to set slash_active true when in single quoted tokens + append tok "\\" + set slash_active 0 + } + XXXitablesquotedkey { + } + string - dquotedkey - itablequotedkey - comment { + if {$slash_active} { + set slash_active 0 + append tok "\\\\" + } else { + set slash_active 1 + } + } + stringpart { + if {$slash_active} { + #assert - quotes empty - or we wouldn't have slash_active + set slash_active 0 + append tok "\\\\" + } else { + append tok $dquotes + set slash_active 1 + } + } + starttablename - starttablearrayname { + error "tomlish backslash is invalid as first character of $tokenType [tomlish::parse::report_line]" + } + tablename - tablearrayname { + if {$slash_active} { + set slash_active 0 + append tok "\\\\" + } else { + set slash_active 1 + } + } + barekey { + error "tomlish Unexpected backslash during barekey. [tomlish::parse::report_line]" + } + default { + error "tomlish Backslash unexpected during tokentype: '$tokenType'. [tomlish::parse::report_line]" + } + } + } else { + switch -exact -- $state { + multistring-space { + if {$slash_active} { + set_tokenType "stringpart" + set tok "\\\\" + set slash_active 0 + } else { + if {$dquotes ne ""} { + set_tokenType "stringpart" + set tok $dquotes + } + set slash_active 1 + } + } + multiliteral-space { + #nothing can be escaped in multiliteral-space - not even squotes (?) review + set_tokenType "literalpart" + set tok "\\" + } + default { + error "tomlish tok error: Unexpected backslash when no token is active. [tomlish::parse::report_line]" + } + } + } + } + sq { + #single quote + set had_slash $slash_active + set slash_active 0 + if {[tcl::string::length $tokenType]} { + switch -exact -- $tokenType { + squote_seq { + #short squote_seq tokens are returned if active during any other character + #longest allowable for leading/trailing are returned here + #### + set existingtoklen [tcl::string::length $tok] ;#toklen prior to this squote + switch -- $state { + leading-squote-space { + append tok $c + if {$existingtoklen > 2} { + error "tomlish tok error: squote_seq unexpected length $existingtoklen when another received" + } elseif {$existingtoklen == 2} { + return 1 ;#return tok ''' + } + } + trailing-squote-space { + append tok $c + if {$existingtoklen == 4} { + #maxlen to be an squote_seq is multisquote + 2 = 5 + #return tok ''''' + return 1 + } + } + default { + error "tomlish tok error: squote_seq in unexpected state '$state' - expected leading-squote-space or trailing-squote-space" + } + } + } + whitespace { + #end whitespace + incr i -1 ;#reprocess sq + return 1 + } + startquotesequence { + _shortcircuit_startquotesequence + } + _start_squote_sequence { + #temp token creatable only during value-expected or array-space + switch -- [tcl::string::length $tok] { + 1 { + append tok $c + } + 2 { + #switch? + append tok $c + set_tokenType triple_squote + return 1 + } + default { + error "tomlish unexpected token length [tcl::string::length $tok] in '_start_squote_sequence'" + } + } + } + literal { + #slash_active always false + #terminate the literal + set_token_waiting type endsquote value "'" complete 1 startindex $cindex + return 1 + } + literalpart { + #ended by ''' - but final could be '''' or ''''' (up to 2 squotes allowed directly before ending triple squote sequence) + #todo + # idea: end this literalpart (possibly 'temporarily') + # let the sq be reprocessed in the multiliteral-space to push an end-multiliteral-sequence to state stack + # upon popping end-multiliteral-sequence - stitch quotes back into this literalpart's token (if either too short - or a long ending sequence as shown above) + incr i -1 ;#throw the "'" back to loop - will be added to an squote_seq token for later processing + return 1 + } + XXXitablesquotedkey { + set_token_waiting type endsquote value "'" complete 1 startindex $cindex + return 1 + } + squotedkey { + ### + #set_token_waiting type endsquote value "'" complete 1 + return 1 + } + starttablename - starttablearrayname { + #!!! + incr i -1 + return 1 + } + tablename - tablearrayname { + append tok $c + } + barekey { + #not clear why o'shennanigan shouldn't be a legal barekey - but it seems not to be. + error "tomlish Unexpected single quote during barekey. [tomlish::parse::report_line]" + } + default { + append tok $c + } + } + } else { + switch -exact -- $state { + array-space { + set_tokenType "_start_squote_sequence" + set tok "'" + } + itable-keyval-value-expected - keyval-value-expected { + set_tokenType "squote_seq_begin" + set tok "'" + return 1 + } + table-space { + #tests: squotedkey.test + set_tokenType "squotedkey" + set tok "" + } + itable-space { + #tests: squotedkey_itable.test + set_tokenType "squotedkey" + set tok "" + } + XXXitable-space { + #future - could there be multiline keys? + #this would allow arbitrary tcl dicts to be stored in toml + #probably unlikely - as it's perhaps not very 'minimal' or ergonomic for config files + set_tokenType "squote_seq_begin" + set tok "'" + return 1 + } + tablename-state { + #first char in tablename-state/tablearrayname-state + set_tokenType tablename + append tok "'" + } + tablearrayname-state { + set_tokenType tablearrayname + append tok "'" + } + literal-state { + tomlish::log::debug "- tokloop sq during literal-state with no tokentype - empty literal?" + set_tokenType literal + incr -1 + return 1 + } + multistring-space { + error "tomlish unimplemented - squote during state '$state'. [tomlish::parse::report_line]" + } + multiliteral-space { + #each literalpart is not necessarily started/ended with squotes - but may contain up to 2 in a row + #we are building up an squote_seq to determine if + #a) it is shorter than ''' so belongs in a literalpart (either previous, subsequent or it's own literalpart between newlines + #b) it is exactly ''' and we can terminate the whole multiliteral + #c) it is 4 or 5 squotes where the first 1 or 2 beling in a literalpart and the trailing 3 terminate the space + set_tokenType "squote_seq_begin" + set tok "'" + return 1 + } + dottedkey-space { + set_tokenType squotedkey + } + default { + error "tomlish unhandled squote during state '$state'. [tomlish::parse::report_line]" + } + } + } + + } + dq { + #double quote + set had_slash $slash_active + set slash_active 0 + + if {[tcl::string::length $tokenType]} { + switch -exact -- $tokenType { + squote_seq { + incr i -1 + return 1 + } + startquotesequence { + set toklen [tcl::string::length $tok] + if {$toklen == 1} { + append tok $c + } elseif {$toklen == 2} { + append tok $c + #switch vs set? + set_tokenType "startmultiquote" + return 1 + } else { + error "tomlish unexpected token length $toklen in 'startquotesequence'" + } + } + _start_squote_sequence { + incr i -[tcl::string::length $tok] + set_tokenType "startsquote" + return 1 + + #set toklen [tcl::string::length $tok] + #switch -- $toklen { + # 1 { + # set_tokenType "startsquote" + # incr i -1 + # return 1 + # } + # 2 { + # set_tokenType "startsquote" + # incr i -2 + # return 1 + # } + # default { + # error "tomlish unexpected _start_squote_sequence length $toklen" + # } + #} + } + literal - literalpart { + append tok $c + } + string { + if {$had_slash} { + append tok "\\" $c + } else { + #unescaped quote always terminates a string? + set_token_waiting type endquote value "\"" complete 1 startindex $cindex + return 1 + } + } + stringpart { + #sub element of multistring + if {$had_slash} { + append tok "\\" $c + } else { + #incr i -1 + + if {$multi_dquote eq "\"\""} { + set_token_waiting type endmultiquote value "\"\"\"" complete 1 startindex [expr {$cindex -2}] + set multi_dquote "" + return 1 + } else { + append multi_dquote "\"" + } + } + } + whitespace { + switch -exact -- $state { + multistring-space { + #REVIEW + if {$had_slash} { + incr i -2 + return 1 + } else { + switch -- [tcl::string::length $multi_dquote] { + 2 { + set_token_waiting type endmultiquote value "\"\"\"" complete 1 startindex [expr {$cindex-2}] + set multi_dquote "" + return 1 + } + 1 { + incr i -2 + return 1 + } + 0 { + incr i -1 + return 1 + } + } + } + } + keyval-value-expected { + #end whitespace token and reprocess + incr i -1 + return 1 + + #if {$multi_dquote eq "\"\""} { + # set_token_waiting type startmultiquote value "\"\"\"" complete 1 + # set multi_dquote "" + # return 1 + #} else { + # #end whitespace token and reprocess + # incr i -1 + # return 1 + #} + } + table-space - itable-space { + incr i -1 + return 1 + } + default { + set_token_waiting type startquote value "\"" complete 1 startindex $cindex + return 1 + } + } + } + comment { + if {$had_slash} {append tok "\\"} + append tok $c + } + XXXdquotedkey - XXXitablequotedkey { + if {$had_slash} { + append tok "\\" + append tok $c + } else { + set_token_waiting type endquote value "\"" complete 1 startindex $cindex + return 1 + } + } + dquotedkey { + ### + if {$had_slash} { + append tok "\\" + append tok $c + } else { + #set_token_waiting type endsquote value "'" complete 1 + return 1 + } + } + squotedkey { + append tok $c + } + tablename - tablearrayname { + if {$had_slash} {append tok "\\"} + append tok $c + } + starttablename - starttablearrayname { + incr i -1 ;## + return 1 + } + default { + error "tomlish got quote during tokenType '$tokenType' [tomlish::parse::report_line]" + } + } + } else { + #$slash_active not relevant when no tokenType + #token is string only if we're expecting a value at this point + switch -exact -- $state { + array-space { + #!? start looking for possible multistartquote + #set_tokenType startquote + #set tok $c + #return 1 + set_tokenType "startquotesequence" ;#one or more quotes in a row - either startquote or multistartquote + set tok $c + } + keyval-value-expected - itable-keyval-value-expected { + set_tokenType "startquotesequence" ;#one or more quotes in a row - either startquote or multistartquote + set tok $c + } + multistring-space { + #TODO - had_slash!!! + #REVIEW + if {$had_slash} { + set_tokenType "stringpart" + set tok "\\\"" + set multi_dquote "" + } else { + if {$multi_dquote eq "\"\""} { + tomlish::log::debug "- tokloop char dq ---> endmultiquote" + set_tokenType "endmultiquote" + set tok "\"\"\"" + return 1 + #set_token_waiting type endmultiquote value "\"\"\"" complete 1 + #set multi_dquote "" + #return 1 + } else { + append multi_dquote "\"" + } + } + } + multiliteral-space { + set_tokenType "literalpart" + set tok "\"" + } + XXXtable-space { + set_tokenType "startquote" + set tok $c + return 1 + } + XXXitable-space { + set_tokenType "startquote" + set tok $c + } + table-space - itable-space { + set_tokenType "dquotedkey" + set tok "" + } + tablename-state { + set_tokenType tablename + set tok $c + } + tablearrayname-state { + set_tokenType tablearrayname + set tok $c + } + dottedkey-space { + set_tokenType dquotedkey + set tok "" + + #only if complex keys become a thing + #set_tokenType dquote_seq_begin + #set tok $c + } + default { + error "tomlish Unexpected quote during state '$state' [tomlish::parse::report_line]" + } + } + } + } + = { + set dquotes $multi_dquote + set multi_dquote "" ;#!! + set had_slash $slash_active + set slash_active 0 + + if {[tcl::string::length $tokenType]} { + switch -exact -- $tokenType { + squote_seq { + incr i -1 + return 1 + } + startquotesequence { + _shortcircuit_startquotesequence + } + _start_squote_sequence { + incr i -[tcl::string::length $tok] + set_tokenType "startsquote" + return 1 + } + literal - literalpart - squotedkey { + #assertion had_slash 0, multi_dquote "" + append tok $c + } + string - comment - dquotedkey - itablequotedkey { + #for these tokenTypes an = is just data. + if {$had_slash} {append tok "\\"} + append tok $c + } + stringpart { + if {$had_slash} {append tok "\\"} + append tok $dquotes$c + } + whitespace { + if {$state eq "multistring-space"} { + set backlen [expr {[tcl::string::length $dquotes] + 1}] + incr i -$backlen + return 1 + } else { + set_token_waiting type equal value = complete 1 startindex $cindex + return 1 + } + } + barekey { + #set_token_waiting type equal value = complete 1 + incr i -1 + return 1 + } + starttablename - starttablearrayname { + error "tomlish Character '=' is invalid first character for $tokenType. [tomlish::parse::report_line]" + } + tablename - tablearrayname { + #invalid in bare name - but valid in quoted parts - leave for tablename parser to sort out + append tok $c + } + default { + error "tomlish unexpected = character during tokentype $tokenType. case not implemented. [tomlish::parse::report_line]" + } + } + } else { + switch -exact -- $state { + multistring-space { + set_tokenType "stringpart" + set tok "" + if {$had_slash} { + append tok "\\" + } + append tok ${dquotes}= + } + multiliteral-space { + set_tokenType "literalpart" + set tok "=" + } + dottedkey-space { + set_tokenType "equal" + set tok "=" + return 1 + } + default { + set_tokenType "equal" + set tok = + return 1 + } + } + } + } + cr { + #REVIEW! + set dquotes $multi_dquote + set multi_dquote "" ;#!! + # \r carriage return + if {$slash_active} {append tok "\\"} ;#if tokentype not appropriate for \, we would already have errored out. + set slash_active 0 + if {[tcl::string::length $tokenType]} { + switch -exact -- $tokenType { + newline { + #we have received a double cr + ::tomlish::log::warn "double cr - will generate cr token. needs testing" + set_tokenType "cr" ;#lone cr token will generally raise an error - but let state machine handle it + incr i -1 + return 1 + } + squote_seq { + incr i -1 + return 1 + } + startquotesequence { + _shortcircuit_startquotesequence + } + _start_squote_sequence { + incr i -[tcl::string::length $tok] + set_tokenType "startsquote" + return 1 + } + literal { + append tok $c + } + literalpart { + #part of MLL string (multi-line literal string) + #we need to split out crlf as a separate NEWLINE to be consistent + ::tomlish::log::warn "literalpart ended by cr - needs testing" + #return literalpart temporarily - allow cr to be reprocessed from multiliteral-space + incr i -1 + return 1 + } + stringpart { + #stringpart is a part of MLB string (multi-line basic string) + #throw back the cr - if followed by lf it will become a {NEWLINE crlf} entry within the MULTISTRING list (e.g between STRINGPART entries) + incr i -1 + return 1 + } + starttablename - starttablearrayname { + error "tomlish Character is invalid first character for $tokenType. [tomlish::parse::report_line]" + } + tablename - tablearrayname { + #could in theory be valid in quoted part of name + #review - might be better just to disallow here + append tok $c + } + whitespace { + #it should technically be part of whitespace if not followed by lf + #but outside of values we are also free to map it to be another NEWLINE instead? REVIEW + incr i -1 + return 1 + } + untyped_value { + incr i -1 + return 1 + } + default { + #!todo - error out if cr inappropriate for tokenType + append tok $c + } + } + } else { + #lf may be appended if next + #review - lone cr as newline? - this is uncommon - but so is lone cr in a string(?) + set_tokenType "newline" + set tok cr + } + } + lf { + # \n newline + set dquotes $multi_dquote + set multi_dquote "" ;#!! + set had_slash $slash_active + set slash_active 0 + if {[tcl::string::length $tokenType]} { + switch -exact -- $tokenType { + newline { + #review + #this lf is the trailing part of a crlf + append tok lf ;#assert we should now have tok "crlf" - as a previous cr is the only way to have an incomplete newline tok + return 1 + } + squote_seq { + incr i -1 + return 1 + } + startquotesequence { + _shortcircuit_startquotesequence + } + _start_squote_sequence { + incr i -[tcl::string::length $tok] + set_tokenType "startsquote" + return 1 + } + literal { + #nl is not allowed *within* a literal - require multiliteral syntax for any literal containing a newline ''' ''' + #even though we terminate the literal without the closing quote here - the token_waiting newline should trigger a state error + set_token_waiting type newline value lf complete 1 startindex $cindex + return 1 + } + literalpart { + #we allow newlines - but store them within the multiliteral as their own element + #This is a legitimate end to the literalpart - but not the whole multiliteral + set_token_waiting type newline value lf complete 1 startindex $cindex + return 1 + } + stringpart { + if {$dquotes ne ""} { + append tok $dquotes + incr i -1 + return 1 + } else { + if {$had_slash} { + #emit the stringpart (return 1), queue the continuation, go back 1 to reprocess the lf (incr i -1) + set_token_waiting type continuation value \\ complete 1 startindex [expr {$cindex-1}] + incr i -1 + return 1 + } else { + set_token_waiting type newline value lf complete 1 startindex $cindex + return 1 + } + } + } + starttablename - tablename - tablearrayname - starttablearrayname { + error "tomlish Character is invalid in $tokenType. [tomlish::parse::report_line]" + } + default { + #newline ends all other tokens. + #note for string: we don't add (raw unescaped) newline to simple string. (must use multi-string for this) + #note for whitespace: + # we will use the convention that \n terminates the current whitespace even if whitespace follows + # ie whitespace is split into separate whitespace tokens at each newline + + #puts "-------------- newline lf during tokenType $tokenType" + set_token_waiting type newline value lf complete 1 startindex $cindex + return 1 + } + } + } else { + switch -exact -- $state { + multistring-space { + if {$had_slash} { + set_tokenType "continuation" + set tok "\\" + incr i -1 + return 1 + } else { + if {$dquotes ne ""} { + #e.g one or 2 quotes just before nl + set_tokenType "stringpart" + set tok $dquotes + incr i -1 + return 1 + } + set_tokenType "newline" + set tok lf + return 1 + } + } + multiliteral-space { + #assert had_slash 0, multi_dquote "" + set_tokenType "newline" + set tok "lf" + return 1 + } + default { + #ignore slash? error? + set_tokenType "newline" + set tok lf + return 1 + } + } + #if {$had_slash} { + # #CONT directly before newline - allows strings_5_byteequivalent test to pass + # set_tokenType "continuation" + # set tok "\\" + # incr i -1 + # return 1 + #} else { + # set_tokenType newline + # set tok lf + # return 1 + #} + } + } + , { + set dquotes $multi_dquote + set multi_dquote "" + set had_slash $slash_active + set slash_active 0 + if {[tcl::string::length $tokenType]} { + switch -exact -- $tokenType { + newline { + #incomplete newline + set_tokenType "cr" + incr i -1 + return 1 + } + squote_seq { + incr i -1 + return 1 + } + startquotesequence { + _shortcircuit_startquotesequence + } + _start_squote_sequence { + incr i -[tcl::string::length $tok] + set_tokenType "startsquote" + return 1 + } + comment - tablename - tablearrayname { + if {$had_slash} {append tok "\\"} + append tok , + } + string - dquotedkey - itablequotedkey { + if {$had_slash} {append tok "\\"} + append tok $c + } + stringpart { + #stringpart can have up to 2 quotes too + if {$had_slash} {append tok "\\"} + append tok $dquotes$c + } + literal - literalpart - squotedkey { + #assert had_slash always 0, multi_dquote "" + append tok $c + } + whitespace { + if {$state eq "multistring-space"} { + set backlen [expr {[tcl::string::length $dquotes] + 1}] + incr i -$backlen + return 1 + } else { + set_token_waiting type comma value "," complete 1 startindex $cindex + return 1 + } + } + default { + set_token_waiting type comma value "," complete 1 startindex $cindex + if {$had_slash} {append tok "\\"} + return 1 + } + } + } else { + switch -exact -- $state { + multistring-space { + set_tokenType "stringpart" + set tok "" + if {$had_slash} {append tok "\\"} + append tok "$dquotes," + } + multiliteral-space { + #assert had_slash 0, multi_dquote "" + set_tokenType "literalpart" + set tok "," + } + default { + set_tokenType "comma" + set tok "," + return 1 + } + } + } + } + . { + set dquotes $multi_dquote + set multi_dquote "" ;#!! + set had_slash $slash_active + set slash_active 0 + if {[tcl::string::length $tokenType]} { + switch -exact -- $tokenType { + newline { + #incomplete newline + set_tokenType "cr" + incr i -1 + return 1 + } + squote_seq { + incr i -1 + return 1 + } + startquotesequence { + _shortcircuit_startquotesequence + } + _start_squote_sequence { + incr i -[tcl::string::length $tok] + set_tokenType "startsquote" + return 1 + } + comment - untyped_value { + if {$had_slash} {append tok "\\"} + append tok $c + } + string - dquotedkey - itablequotedkey { + if {$had_slash} {append tok "\\"} + append tok $c + } + stringpart { + if {$had_slash} {append tok "\\"} + append tok $dquotes$c + } + literal - literalpart - squotedkey { + #assert had_slash always 0, multi_dquote "" + append tok $c + } + whitespace { + switch -exact -- $state { + multistring-space { + set backchars [expr {[tcl::string::length $dquotes] + 1}] + if {$had_slash} { + incr backchars 1 + } + incr i -$backchars + return 1 + } + xxxdottedkey-space { + incr i -1 + return 1 + } + dottedkey-space-tail { + incr i -1 + return 1 + } + default { + error "tomlish Received period during tokenType 'whitespace' [tomlish::parse::report_line]" + } + } + } + starttablename - starttablearrayname { + #This would correspond to an empty table name + error "tomlish Character '.' is not allowed as first character ($tokenType). [tomlish::parse::report_line]" + } + tablename - tablearrayname { + #subtable - split later - review + append tok $c + } + barekey { + #e.g x.y = 1 + #we need to transition the barekey to become a structured table name ??? review + #x is the tablename y is the key + set_token_waiting type dotsep value "." complete 1 startindex $cindex + return 1 + } + default { + error "tomlish Received period during tokenType '$tokenType' [tomlish::parse::report_line]" + #set_token_waiting type period value . complete 1 + #return 1 + } + } + } else { + switch -exact -- $state { + multistring-space { + set_tokenType "stringpart" + set tok "" + if {$had_slash} {append tok "\\"} + append tok "$dquotes." + } + multiliteral-space { + set_tokenType "literalpart" + set tok "." + } + XXXdottedkey-space { + ### obs? + set_tokenType "dotsep" + set tok "." + return 1 + } + dottedkey-space-tail { + ### + set_tokenType "dotsep" + set tok "." + return 1 + } + default { + set_tokenType "untyped_value" + set tok "." + } + } + } + + } + " " { + set dquotes $multi_dquote + set multi_dquote "" ;#!! + if {[tcl::string::length $tokenType]} { + set had_slash $slash_active + set slash_active 0 + switch -exact -- $tokenType { + newline { + #incomplete newline + set_tokenType "cr" + incr i -1 + return 1 + } + squote_seq { + incr i -1 + return 1 + } + startquotesequence { + _shortcircuit_startquotesequence + } + _start_squote_sequence { + incr i -[tcl::string::length $tok] + set_tokenType "startsquote" + return 1 + } + barekey { + #todo had_slash - emit token or error + #whitespace is a terminator for bare keys + #set_token_waiting type whitespace value $c complete 1 + incr i -1 + return 1 + } + untyped_value { + #unquoted values (int,date,float etc) are terminated by whitespace + #set_token_waiting type whitespace value $c complete 1 + incr i -1 + return 1 + } + comment { + if {$had_slash} { + append tok "\\" + } + append tok $dquotes$c + } + string - dquotedkey - itablequotedkey { + if {$had_slash} { append tok "\\" } + append tok $c + } + stringpart { + #for stringpart we store WS separately for ease of processing continuations (CONT stripping) + if {$had_slash} { + #REVIEW + #emit the stringpart - go back to the slash + incr i -2 + return 1 + } else { + #split into STRINGPART aaa WS " " + append tok $dquotes + incr i -1 + return 1 + } + } + literal - literalpart - squotedkey { + append tok $c + } + whitespace { + if {$state eq "multistring-space"} { + if {$dquotes ne ""} { + #end whitespace token + #go back by the number of quotes plus this space char + set backchars [expr {[tcl::string::length $dquotes] + 1}] + incr i -$backchars + return 1 + } else { + append tok $c + } + } else { + append tok $c + } + } + starttablename - starttablearrayname { + incr i -1 + return 1 + } + tablename - tablearrayname { + #include whitespace in the tablename/tablearrayname + #Will need to be normalized upon interpreting the tomlish as a datastructure + append tok $c + } + default { + error "tomlish Received whitespace space during tokenType '$tokenType' [tomlish::parse::report_line]" + } + } + } else { + set had_slash $slash_active + set slash_active 0 + switch -exact -- $state { + tablename-state { + #tablename can have leading,trailing and interspersed whitespace! + #These will not be treated as whitespace tokens, instead forming part of the name. + set_tokenType tablename + set tok "" + if {$had_slash} {append tok "\\"} + append tok $c + } + tablearrayname-state { + set_tokenType tablearrayname + set tok "" + if {$had_slash} {append tok "\\"} + append tok $c + } + multistring-space { + if {$had_slash} { + set_tokenType "continuation" + set tok "\\" + incr i -1 + return 1 + } else { + if {$dquotes ne ""} { + set_tokenType "stringpart" + set tok $dquotes + incr i -1 + return 1 + } + set_tokenType "whitespace" + append tok $c + } + } + multiliteral-space { + set_tokenType "literalpart" + set tok $c + } + default { + if {$had_slash} { + error "tomlish unexpected backslash [tomlish::parse::report_line]" + } + set_tokenType "whitespace" + append tok $c + } + } + } + } + tab { + set dquotes $multi_dquote + set multi_dquote "" ;#!! + + if {[tcl::string::length $tokenType]} { + if {$slash_active} {append tok "\\"} ;#if tokentype not appropriate for \, we would already have errored out (?review) + set slash_active 0 + switch -exact -- $tokenType { + newline { + #incomplete newline + set_tokenType "cr" + incr i -1 + return 1 + } + startquotesequence { + _shortcircuit_startquotesequence + } + _start_squote_sequence { + incr i -[tcl::string::length $tok] + set_tokenType "startsquote" + return 1 + } + barekey { + #whitespace is a terminator for bare keys + incr i -1 + #set_token_waiting type whitespace value $c complete 1 + return 1 + } + untyped_value { + #unquoted values (int,date,float etc) are terminated by whitespace + #set_token_waiting type whitespace value $c complete 1 + incr i -1 + return 1 + } + squotedkey { + append tok $c + } + dquotedkey - string - comment - whitespace { + #REVIEW + append tok $c + } + stringpart { + #for stringpart we store WS separately for ease of processing continuations (CONT stripping) + if {$had_slash} { + #REVIEW + #emit the stringpart - go back to the slash + incr i -2 + return 1 + } else { + #split into STRINGPART aaa WS " " + append tok $dquotes + incr i -1 + return 1 + } + } + literal - literalpart { + append tok $c + } + starttablename - starttablearrayname { + incr i -1 + return 1 + } + tablename - tablearrayname { + #include whitespace in the tablename/tablearrayname + #Will need to be normalized upon interpreting the tomlish as a datastructure + append tok $c + } + default { + error "tomlish Received whitespace tab during tokenType '$tokenType' [tomlish::parse::report_line]" + } + } + } else { + set had_slash $slash_active + if {$slash_active} { + set slash_active 0 + } + switch -exact -- $state { + tablename-state { + #tablename can have leading,trailing and interspersed whitespace! + #These will not be treated as whitespace tokens, instead forming part of the name. + set_tokenType tablename + set tok $c + } + tablearrayname-state { + set_tokenType tablearrayname + set tok $c + } + multistring-space { + if {$had_slash} { + set_tokenType "continuation" + set tok "\\" + incr i -1 + return 1 + } else { + if {$dquotes ne ""} { + set_tokenType stringpart + set tok $dquotes + incr i -1 + return 1 + } else { + set_tokenType whitespace + append tok $c + } + } + } + multiliteral-space { + set_tokenType "literalpart" + set tok $c + } + default { + set_tokenType "whitespace" + append tok $c + } + } + } + } + bom { + #BOM (Byte Order Mark) - ignored by token consumer + if {[tcl::string::length $tokenType]} { + switch -exact -- $tokenType { + _start_squote_sequence { + #assert - tok will be one or two squotes only + incr i -[tcl::string::length $tok] + set_tokenType "startsquote" + return 1 + } + literal - literalpart { + append tok $c + } + default { + set_token_waiting type bom value "\uFEFF" complete 1 startindex $cindex + return 1 + } + } + } else { + switch -exact -- $state { + multiliteral-space { + set_tokenType "literalpart" + set tok $c + } + default { + set_tokenType "bom" + set tok "\uFEFF" + return 1 + } + } + } + } + default { + set dquotes $multi_dquote + set multi_dquote "" ;#!! + + if {[tcl::string::length $tokenType]} { + if {$slash_active} {append tok "\\"} ;#if tokentype not appropriate for \, we would already have errored out. + set slash_active 0 + switch -exact -- $tokenType { + newline { + #incomplete newline + set_tokenType "cr" + incr i -1 + return 1 + } + squote_seq { + incr i -1 + return 1 + } + startquotesequence { + _shortcircuit_startquotesequence + } + _start_squote_sequence { + incr i -[tcl::string::length $tok] + set_tokenType "startsquote" + return 1 + } + whitespace { + if {$state eq "multistring-space"} { + if {$dquotes ne ""} { + set backlen [expr {[tcl::string::length $dquotes] + 1}] + incr i -$backlen + return 1 + } else { + incr i -1 + return 1 + } + } else { + #review + incr i -1 ;#We don't have a full token to add to the token_waiting dict - so leave this char for next run. + return 1 + } + } + barekey { + if {[tomlish::utils::is_barekey $c]} { + append tok $c + } else { + error "tomlish Unexpected character '$c' during bare key. Only \[a-zA-Z0-9_-\] and a selection of letter-like chars allowed. (see tomlish::utils::is_barekey) [tomlish::parse::report_line]" + } + } + starttablename - starttablearrayname { + incr i -1 + #allow statemachine to set context for subsequent chars + return 1 + } + stringpart { + append tok $dquotes$c + } + default { + #e.g comment/string/literal/literalpart/untyped_value/starttablename/starttablearrayname/tablename/tablearrayname + append tok $c + } + } + } else { + set had_slash $slash_active + set slash_active 0 + switch -exact -- $state { + table-space - itable-space { + #if no currently active token - assume another key value pair + if {[tomlish::utils::is_barekey $c]} { + set_tokenType "barekey" + append tok $c + } else { + error "tomlish Unexpected char $c ([tomlish::utils::nonprintable_to_slashu $c]) whilst no active tokenType. [tomlish::parse::report_line]" + } + } + XXXcurly-syntax { + puts stderr "curly-syntax - review" + if {[tomlish::utils::is_barekey $c]} { + set_tokenType "barekey" + append tok $c + } else { + error "tomlish Unexpected char $c ([tomlish::utils::nonprintable_to_slashu $c]) whilst no active tokenType. [tomlish::parse::report_line]" + } + } + multistring-space { + set_tokenType "stringpart" + if {$had_slash} { + #assert - we don't get had_slash and dquotes at same time + set tok \\$c + } else { + set tok $dquotes$c + } + } + multiliteral-space { + set_tokenType "literalpart" + set tok $c + } + tablename-state { + set_tokenType "tablename" + set tok $c + } + tablearrayname-state { + set_tokenType "tablearrayname" + set tok $c + } + dottedkey-space { + set_tokenType barekey + set tok $c + } + default { + #todo - something like ansistring VIEW to show control chars? + set cshow [string map [list \t tab \v vt] $c] + tomlish::log::debug "- tokloop char '$cshow' setting to untyped_value while state:$state [tomlish::parse::report_line]" + set_tokenType "untyped_value" + set tok $c + } + } + } + } + } + + } + + #run out of characters (eof) + if {[tcl::string::length $tokenType]} { + #check for invalid ending tokens + #if {$state eq "err-state"} { + # error "Reached end of data whilst tokenType = '$tokenType'. INVALID" + #} + switch -exact -- $tokenType { + startquotesequence { + set toklen [tcl::string::length $tok] + if {$toklen == 1} { + #invalid + #eof with open string + error "tomlish eof reached without closing quote for string. [tomlish::parse::report_line]" + } elseif {$toklen == 2} { + #valid + #we ended in a double quote, not actually a startquoteseqence - effectively an empty string + switch_tokenType "startquote" + incr i -1 + #set_token_waiting type string value "" complete 1 + return 1 + } + } + _start_squote_sequence { + set toklen [tcl::string::length $tok] + switch -- $toklen { + 1 { + #invalid eof with open literal + error "tomlish eof reached without closing single quote for string literal. [tomlish::parse::report_line]" + } + 2 { + #review + set_token_waiting type endsquote value "'" complete 1 startindex [expr {$cindex -1}] + set_tokenType "literal" + set tok "" + return 1 + } + } + } + newline { + #The only newline token that has still not been returned should have a tok value of "cr" + puts "tomlish eof reached - with incomplete newline token '$tok'" + if {$tok eq "cr"} { + #we convert lone cr to it's own "cr" token elsewhere in the document to allow statemachine to handle it. + #(which it should generally do by not handling it ie raising an error - or emitting an ERROR list in the tomlish) + #if trailing char is a lone cr - we should encode it the same way as elsewhere that is outside of values + # ie as it's own token. + switch_tokenType "cr" + return 1 + } else { + #should be unreachable + error "tomlish eof reached - with invalid newline token. value: $tok" + } + } + } + set_token_waiting type eof value eof complete 1 startindex $i ;#review + return 1 + } else { + ::tomlish::log::debug "- No current tokenType, ran out of characters, setting tokenType to 'eof' [tomlish::parse::report_line]" + set tokenType "eof" + set tok "eof" + } + return 0 + } + + #*** !doctools + #[list_end] [comment {--- end definitions namespace tomlish::parse ---}] +} + +namespace eval tomlish::dict { + namespace export {[a-z]*}; # Convention: export all lowercase + namespace path [namespace parent] + + proc is_tomlish_typeval {d} { + #designed to detect {type value } e.g {type INT value 3}, {type STRING value "blah etc"} + #as a sanity check we need to avoid mistaking user data that happens to match same form + #consider x.y={type="spud",value="blah"} + #The value of type will itself have already been converted to {type STRING value spud} ie never a single element. + #check the length of the type as a quick way to see it's a tag - not something else masqerading. + expr {[dict size $d] == 2 && [dict exists $d type] && [dict exists $d value] && [llength [dict get $d type]] == 1} + } + proc is_tomlish_typeval2 {d} { + upvar ::tomlish::tags tags + expr {[lindex $d 0] eq "type" && [lindex $d 1] in $tags} + } + proc last_tomltype_posn {d} { + set last_simple -1 + set dictposn [expr {[dict size $d] -1}] + foreach k [lreverse [dict keys $d]] { + set dval [dict get $d $k] + if {[is_tomlish_typeval $dval]} { + set last_simple $dictposn + break + } + incr dictposn -1 + } + return $last_simple + } + + + #review + proc name_from_tablestack {tablestack} { + set name "" + foreach tinfo [lrange $tablestack 1 end] { + lassign $tinfo type namepart + switch -- $type { + T { + if {$name eq ""} { + append name $namepart + } else { + append name .$namepart + } + } + I { + if {$name eq ""} { + append name $namepart + } else { + append name .$namepart + } + } + default { + #end at first break in the leading sequence of T & I tablenames + break + } + } + } + return $name + } + +} + +tcl::namespace::eval tomlish::app { + variable applist [list encoder decoder test] + + #*** !doctools + #[subsection {Namespace tomlish::app}] + #[para] + #[list_begin definitions] + + proc decoder {args} { + #*** !doctools + #[call app::[fun decoder] [arg args]] + #[para] read toml on stdin until EOF + #[para] on error - returns non-zero exit code and writes error on stderr + #[para] on success - returns zero exit code and writes JSON encoding of the data on stdout + #[para] This decoder is intended to be compatible with toml-test + + set opts [dict merge [dict create] $args] + #fconfigure stdin -encoding utf-8 + fconfigure stdin -translation binary + #Just slurp it all - presumably we are not handling massive amounts of data on stdin. + # - even if the input is large, we probably don't gain much (aside from possible memory savings?) by attempting to process input as it arrives. + if {[catch { + set toml [read stdin] + }]} { + exit 2 ;#read error + } + try { + set j [::tomlish::toml_to_json $toml] + } on error {em} { + puts stderr "decoding failed: '$em'" + exit 1 + } + puts -nonewline stdout $j + exit 0 + } + + proc encoder {args} { + #*** !doctools + #[call app::[fun encoder] [arg args]] + #[para] read JSON on stdin until EOF + #[para] return non-zero exitcode if JSON data cannot be converted to a valid TOML representation + #[para] return zero exitcode and TOML data on stdout if JSON data can be converted. + #[para] This encoder is intended to be compatible with toml-test + + set opts [dict merge [dict create] $args] + fconfigure stdin -translation binary + if {[catch { + set json [read stdin] + }]} { + exit 2 ;#read error + } + try { + set toml [::tomlish::json_to_toml $json] + } on error {em} { + puts stderr "encoding failed: '$em'" + exit 1 + } + puts -nonewline stdout $toml + exit 0 + } + + proc test {args} { + set opts [dict merge [dict create] $args] + + package require test::tomlish + if {[dict exists $opts -suite]} { + test::tomlish::suite [dict get $opts -suite] + } + test::tomlish::run + } + + + #*** !doctools + #[list_end] [comment {--- end definitions namespace tomlish::app ---}] +} + +proc ::tomlish::appnames {} { + set applist [list] + foreach cmd [info commands ::tomlish::app::*] { + lappend applist [namespace tail $cmd] + } + return $applist +} + + +# ++ +++ +++ +++ +++ +++ +++ +++ +++ +++ +++ +# Secondary API namespace +# ++ +++ +++ +++ +++ +++ +++ +++ +++ +++ +++ +namespace eval tomlish::lib { + namespace export {[a-z]*}; # Convention: export all lowercase + namespace path [namespace parent] + #*** !doctools + #[subsection {Namespace tomlish::lib}] + #[para] Secondary functions that are part of the API + #[list_begin definitions] + + #proc utility1 {p1 args} { + # #*** !doctools + # #[call lib::[fun utility1] [arg p1] [opt {?option value...?}]] + # #[para]Description of utility1 + # return 1 + #} + + + + #*** !doctools + #[list_end] [comment {--- end definitions namespace tomlish::lib ---}] +} +# ++ +++ +++ +++ +++ +++ +++ +++ +++ +++ +++ + +if {$argc > 0} { + puts stderr "argc: $argc args: $argv" + + if {($argc == 1)} { + if {[tcl::string::tolower $argv] in {help -help h -h}} { + puts stdout "Usage: -app where appname one of:[tomlish::appnames]" + exit 0 + } else { + puts stderr "Argument '$argv' not understood. Try -help" + exit 1 + } + } + set opts [dict create] + set opts [dict merge $opts $argv] + + set opts_understood [list -app ] + if {"-app" in [dict keys $opts]} { + #Don't vet the remaining opts - as they are interpreted by each app + } else { + foreach key [dict keys $opts] { + if {$key ni $opts_understood} { + puts stderr "Option '$key' not understood" + exit 1 + } + } + } + if {[dict exists $opts -app]} { + set app [dict get $opts -app] + if {$app ni [tomlish::appnames]} { + puts stderr "app '[dict get $opts -app]' not found" + exit 1 + } + tomlish::app::$app {*}$opts + } +} + +## Ready +package provide tomlish [namespace eval tomlish { + variable pkg tomlish + variable version + set version 1.1.4 +}] +return + +#*** !doctools +#[manpage_end] +