another attempt at fixing enableRaw/disableRaw on unix

src/modules/punk/console-999999.0a1.0.tm

@@ -59,6 +59,7 @@ namespace eval punk::console {
             internal::abort_if_loop
             tailcall enableAnsi
         }
+        #review what raw mode means with regard to a specific channel vs terminal as a whole
         proc enableRaw {{channel stdin}} {
             #loopavoidancetoken (don't remove) 
             internal::define_windows_procs
@@ -76,14 +77,16 @@ namespace eval punk::console {
             #todo?
         }
 
-        #todo - something better
+        #todo - something better - the 'channel' concept may not really apply on unix, as raw mode is for input and output modes
         proc enableRaw {{channel stdin}} {
             variable previous_stty_state_$channel
             set sttycmd [auto_execok stty]
-            set previous_stty_state_$channel [exec {*}$sttycmd -g <@$channel]
+            if {[set previous_stty_state_$channel] eq ""} {
+                set previous_stty_state_$channel [exec {*}$sttycmd -g <@$channel]
+            }
 
             exec {*}$sttycmd raw -echo <@$channel
-            return [dict create previous $previous_stty_state_$channel]
+            return [dict create previous [set previous_stty_state_$channel]]
         }
         proc disableRaw {{channel stdin}} {
             variable previous_stty_state_$channel
@@ -93,7 +96,7 @@ namespace eval punk::console {
                 set previous_stty_state_$channel ""
                 return restored
             }
-            exec {*}$sttycmd raw echo <@$channel
+            exec {*}$sttycmd -raw echo <@$channel
             return done
         }
     }