This is a working solution
هذا حل فعلا يعمل و هو سهل الاستعمال
The following procedure render_arabic does not completely solve the rendering the Arabic characters to be fully connected.
However, it does reach the wanted target and goal of making the Arabic smoothly readable.
So you can now type in the code as such:
set arabic_rendered_sentence [ render_arabic "مرحبا بكم"]
Then get in your Tk something very near to the following result.
Please just understand I am using the text to explain and imagine it with the spaces are just only one millimeter wide.
مـ ر حـ بـا بـ كم
Download the script here
This video on YouTube explains how it works from within the code:
Render Arabic Language Words in TCL and Tk (Video Take 2)
If you are planning to do inputs, then do the following steps:
set list_of_widget_window_paths [list .mytext1 .anotherText2 .toplevel.toplevel_text]
foreach text_widget_window_path $list_of_widget_window_paths {
bind $text_widget_window_path <Key> [list text_binding_for_rtl %W %k]
}And you're done!
See it in action here:
Render Arabic Language Words in TCL and Tk (Video Take 3)
#!/usr/bin/wish
#Code written by Rani Fayez Ahmad (Superlinux)
#Website: http://www.superlinux.net
#a procedure to make Arabic readable when displayed in a Tk widget.
proc render_arabic { arabic_string } {
#The given of the problem is an Arabic sentence
#Break the sentence into words
set words [ split $arabic_string ]
#Display the sentence they TCL receives it
#The problem is:
#TCL receives the Arabic letters: (i) in the reverse order (ii) disconnected
#we want to re-render the Arabic to be displayed correctly
#tk_messageBox -message $words
#$count is the word index in the Arabic sentence
set count 0
#the following is just an example of how to get an arabic character index number in the unicode character charts
#set z {} ; foreach el [split "لـ" {}] {puts [scan $el %c]}
#foreach word in the Arabic sentence
foreach word $words {
#if the currently processed word is completely a Latin/russian/Greek or in another meaning completely an ASCI word,
# simply skip this word and move to the next. we only want to find Arabic words completely
if {[string is ascii $word]==1} {
incr count
continue
}
#1-get the sub-string in the word without the last letter
#we will deal with the connection of the last letter later
set sub_word [string range $word 0 end-1]
#All the letters from baa2 to yaa2 when they are NOT the last letter;
#TCL initially has and reads them in their isolated form as in ل م س;
#they must be converted into their initial form e.g لـ مـ سـ
#so replace and convert every occurrence of each of such letters
set sub_word [ string map {"\u0628" \ufe91} $sub_word] ;#ba2 ب
set sub_word [ string map {"\u062A" \ufe97} $sub_word] ;#Ta2 ت
set sub_word [ string map {"\u062B" \ufe9b} $sub_word] ;#thaa2 ث
set sub_word [ string map {"\u062C" \ufe9f} $sub_word] ;#Jeem ج
set sub_word [ string map {"\u062d" \ufea3} $sub_word] ;#7aa2 ح
set sub_word [ string map {"\u062e" \ufeA7} $sub_word] ;#5aa2 خ
set sub_word [ string map {"\u0633" \ufeb3} $sub_word] ;#seen س
set sub_word [ string map {"\u0634" \ufeb7} $sub_word] ;#sheen ش
set sub_word [ string map {"\u0635" \ufebb} $sub_word] ;#SSaad ص
set sub_word [ string map {"\u0636" \ufebf} $sub_word] ;#DDhahd ض
set sub_word [ string map {"\u0637" \ufec3} $sub_word] ;#TTaa2 ط
set sub_word [ string map {"\u0638" \ufec7} $sub_word] ;#tthaa2 Zah ظ
set sub_word [ string map {"\u0639" \ufeCb} $sub_word] ;#3eyn ع
set sub_word [ string map {"\u063A" \ufeCF} $sub_word] ;#ghyn غ
set sub_word [ string map {"\u0641" \ufeD3} $sub_word] ;#faa2 ف
set sub_word [ string map {"\u0642" \ufeD7} $sub_word] ;#quaaf ق
set sub_word [ string map {"\u0643" \ufeDb} $sub_word] ;#kaaf ك
set sub_word [ string map {"\u0644" \ufedf} $sub_word] ;#lam ل
set sub_word [ string map {"\u0645" \ufee3} $sub_word] ;#meem م
set sub_word [ string map {"\u0646" \ufee7} $sub_word] ;#noon ن
set sub_word [ string map {"\u0647" \ufeeb} $sub_word] ;#haa2 هـ
set sub_word [ string map {"\u064A" \ufef3} $sub_word] ;#yaa2 ي
set sub_word [ string map {"\u0626" \ufe8b} $sub_word] ;#hamza 3ala nabera (initial form of yaa2) ئـ
#now replace the whole part of the word that excludes the last letter
#with the conversion done above
set word [string replace $word 0 end-1 $sub_word]
#The following list of characters are the characters initial form mentioned above + the tatweel character
set initials [list \u0640 \ufe90 \ufe97 \ufe9b \ufe9f \ufea3 \ufeA7 \ufb3 \ufeb7 \ufebb \ufebf \ufec3 \ufec7 \ufeCb \ufeCF \ufeD3 \ufeD7 \ufeDb \ufedf \ufee3 \ufee7 \ufeeb \ufef3]
#find the character before the last.
set before_last_char [ string index $word end-1 ]
#for debugging purposes just print the character before the last.
puts $before_last_char
#and try to see if the character before the last is an element of the list $initials defined in the previous line.
#and if it's true, then convert the last character to it's final linked form
#this way they will be joined
if { [lsearch -ascii -inline $initials $before_last_char ] == $before_last_char } {
#now get also last character
set last_character [ string index $word end]
#print it for debugging purposes
puts $last_character
#just to make sure that we we are matching correctly print the Unicode index number of the character
puts [scan $last_character %c]
#now convert the last character into its final linked form
switch -- $last_character {
\u0627 {
#baa2
set word [ string replace $word end end \ufe8e ]
}
\u0628 {
#baa2
set word [ string replace $word end end \ufe90 ]
}
\u0629 {
#taa2 marbootta
set word [ string replace $word end end \ufe94]
}
\u062A {
#ta2 maftoo7a
set word [ string replace $word end end \ufe96 ]
}
\u062B {
#thaa2
set word [ string replace $word end end \ufe9A ]
}
\u062c {
#jeem
set word [ string replace $word end end \ufe9e ]
puts $word
}
\u062d {
#7aa2
set word [ string replace $word end end \ufeA2 ]
}
\u062e {
#5aa2
set word [ string replace $word end end \ufea6 ]
}
\u062f {
#dal
set word [ string replace $word end end \ufeaa ]
}
\u0630 {
#tthal
set word [ string replace $word end end \ufeac ]
}
\u0631 {
#raa2
set word [ string replace $word end end \ufeae ]
}
\u0632 {
#zyn
set word [ string replace $word end end \ufeaf ]
}
\u0633 {
#seen
set word [ string replace $word end end \ufeb2 ]
}
\u0634 {
#sheen
set word [ string replace $word end end \ufeb6 ]
}
\u0635 {
#ssaad
set word [ string replace $word end end \ufeba ]
}
\u0636 {
#ddaad
set word [ string replace $word end end \ufebe ]
}
\u0637 {
#ttaa2
set word [ string replace $word end end \ufec2 ]
}
\u0638 {
#tthaa2
set word [ string replace $word end end \ufec8 ]
}
\u0639 {
#3ayn
set word [ string replace $word end end \ufeca ]
}
\u063a {
#ghyn
set word [ string replace $word end end \ufece ]
}
\u0641 {
#faa2
set word [ string replace $word end end \ufed2 ]
}
\u0642 {
#quaaf
set word [ string replace $word end end \ufed6 ]
}
\u0643 {
#kaaf
set word [ string replace $word end end \ufeda ]
}
\u0644 {
#laam
set word [ string replace $word end end \ufede ]
}
\u0645 {
#meem
set word [ string replace $word end end \ufee2 ]
}
\u0646 {
#noon
set word [ string replace $word end end \ufee6 ]
}
\u0647 {
#haa2
set word [ string replace $word end end \ufeea ]
}
\u0648 {
#waaw
set word [ string replace $word end end \ufeee ]
}
\u0624 {
#waaw with hamza above
set word [ string replace $word end end \ufe86 ]
}
\u0649 {
#alef maqsura
set word [ string replace $word end end \ufef0 ]
}
\u064a {
#yaa2
set word [ string replace $word end end \ufef1 ]
}
default {
#default is nothing to do
}
}
} ;# end of if the character before the last is a member of the list $initials
#now reverse the word for correct displaying on the screen
set word [ string reverse $word]
#add and replace the corrected/conversion-of word with malformed one. in the Arabic sentence
#the whole words in the sentence yet are still in the reverse order
lset words $count $word
#move to the next word
incr count
}
#reverse the order of the list of words of the Arabic sentence and join them into one string.
set words [join [ lreverse $words] ]
#The following line is left for you to see the final result. just remove the comment sign (#)
#tk_messageBox -message $words
return $words
}
#The following is for testing the [proc render_arabic]
#the Arabic sentence means in English :
#The program is not available or changeable (it should be here the word "NOT" (غير) instead of "CHANGEABLE" (متغير) but for debugging purposes there's an additional character) exists/existed
set msg [render_arabic "الـبـرنـامـج غـيـر مـتـوفـر او مـتـغـيـر مـوجـود حـالئـيـا"]
tk_messageBox -detail $msg