#as a counterpoint however - we don't currently retrieve grapheme width during split (performance impact at wrong time?) - and width may depend on the rendering method anyway
#e.g c0 controls are normally zero printing width - but are (often) 1-wide glyphs in a cp437 rendering operation.
#we want to render all the elements in this splitindex - for pt this may be multiple, for code it will be a single element
#we want to render all the elements in this splitindex - for pt this may be multiple, for code it will be a single element(?)
error "textblock::testblock only sizes between 1 and 15 inclusive supported"
}
set rainbow_list [list]
lappend rainbow_list {30 47} ;#black White
lappend rainbow_list {31 46} ;#red Cyan
lappend rainbow_list {32 45} ;#green Purple
lappend rainbow_list {33 44} ;#yellow Blue
lappend rainbow_list {34 43} ;#blue Yellow
lappend rainbow_list {35 42} ;#purple Green
lappend rainbow_list {36 41} ;#cyan Red
lappend rainbow_list {37 40} ;#white Black
lappend rainbow_list {black Yellow}
lappend rainbow_list red
lappend rainbow_list green
lappend rainbow_list yellow
lappend rainbow_list blue
lappend rainbow_list purple
lappend rainbow_list cyan
lappend rainbow_list {white Red}
set chars [concat [punk::range 1 9] A B C D E F]
set charsubset [lrange $chars 0 $size-1]
set c [::join $charsubset \n]
set RST [a]
if {"rainbow" in $colour} {
set clist [list]
for {set i 0} {$i <$size} {incr i} {
set colour2 [string map [list rainbow [lindex $rainbow_list $i]] $colour]
set ansi [a+ {*}$colour2]
set ansicode [punk::ansi::codetype::sgr_merge_list "" $ansi]
lappend clist ${ansicode}$c$RST
}
} else {
set cc $c
if {$colour ne ""} {
set cc [a+ {*}$colour]$c$RST
}
set clist [lrepeat $size $cc]
}
textblock::join {*}$clist
}
interp alias {} testblock {} textblock::testblock
#todo - consider 'elastic tabstops' for textblocks where tab acts as a column separator and adjacent lines with the same number of tabs form a sort of table
