Rename fix-string.js and fixTextForSvg function name to a more readable name.

User regex to detect arabic characters. Fix editing bugs.
2026-05-31 20:21:36 +02:00 · 2017-01-02 14:48:22 +03:30
parent 92b5ce133d
commit af1ac89df7
3 changed files with 17 additions and 7 deletions
@@ -0,0 +1,90 @@
+const chars = {
+    1575: {initial: "ا", isolated: "ا", medial: "", final: "ﺎ" },
+    1576: {initial: "ﺑ", isolated: "ﺏ", medial: "ﺒ", final: "ﺐ" },
+    1662: {initial: "ﭘ", isolated: "ﭖ", medial: "ﭙ", final: "ﭗ" },
+    1578: {initial: "ﺗ", isolated: "ﺕ", medial: "ﺘ", final: "ﺖ" },
+    1579: {initial: "ﺛ", isolated: "ﺙ", medial: "ﺜ", final: "ﺚ" },
+    1580: {initial: "ﺟ", isolated: "ﺝ", medial: "ﺠ", final: "ﺞ" },
+    1670: {initial: "ﭼ", isolated: "ﭺ", medial: "ﭽ", final: "ﭻ" },
+    1581: {initial: "ﺣ", isolated: "ﺡ", medial: "ﺤ", final: "ﺢ" },
+    1582: {initial: "ﺧ", isolated: "ﺥ", medial: "ﺨ", final: "ﺦ" },
+    1583: {initial: "ﺩ", isolated: "ﺩ", medial: "", final: "ﺪ" },
+    1584: {initial: "ﺫ", isolated: "ﺫ", medial: "", final: "ﺬ" },
+    1585: {initial: "ﺭ", isolated: "ﺭ", medial: "", final: "ﺮ" },
+    1586: {initial: "ﺯ", isolated: "ﺯ", medial: "", final: "ﺰ" },
+    1688: {initial: "ﮊ", isolated: "ﮊ", medial: "", final: "ﮋ" },
+    1587: {initial: "ﺳ", isolated: "ﺱ", medial: "ﺴ", final: "ﺲ" },
+    1588: {initial: "ﺷ", isolated: "ﺵ", medial: "ﺸ", final: "ﺶ" },
+    1589: {initial: "ﺻ", isolated: "ﺹ", medial: "ﺼ", final: "ﺺ" },
+    1590: {initial: "ﺿ", isolated: "ﺽ", medial: "ﻀ", final: "ﺾ" },
+    1591: {initial: "ﻃ", isolated: "ﻁ", medial: "ﻄ", final: "ﻂ" },
+    1592: {initial: "ﻇ", isolated: "ﻅ", medial: "ﻈ", final: "ﻆ" },
+    1593: {initial: "ﻋ", isolated: "ﻉ", medial: "ﻌ", final: "ﻊ" },
+    1594: {initial: "ﻏ", isolated: "ﻍ", medial: "ﻐ", final: "ﻎ" },
+    1601: {initial: "ﻓ", isolated: "ﻑ", medial: "ﻔ", final: "ﻒ" },
+    1602: {initial: "ﻗ", isolated: "ﻕ", medial: "ﻘ", final: "ﻖ" },
+    1705: {initial: "ﻛ", isolated: "ﮎ", medial: "ﻜ", final: "ﮏ" },
+    1711: {initial: "ﮔ", isolated: "ﮒ", medial: "ﮕ", final: "ﮓ" },
+    1604: {initial: "ﻟ", isolated: "ﻝ", medial: "ﻠ", final: "ﻞ" },
+    1605: {initial: "ﻣ", isolated: "ﻡ", medial: "ﻤ", final: "ﻢ" },
+    1606: {initial: "ﻧ", isolated: "ﻥ", medial: "ﻨ", final: "ﻦ" },
+    1608: {initial: "ﻭ", isolated: "ﻭ", medial: "", final: "ﻮ" },
+    1607: {initial: "ﻫ", isolated: "ﻩ", medial: "ﻬ", final: "ﻪ" },
+    1740: {initial: "ﻳ", isolated: "ﻯ", medial: "ﻴ", final: "ﻰ" },
+    5000: {initial: "ﻻ", isolated: "ﻻ", medial: "", final: "ﻼ" }
+};
+
+export function fixArabicScriptTextForSvg(inputText){
+    return inputText.split(' ').reverse().map(function(w){
+        return fixArabicScriptWordForSvg(w);
+    }).join(' ');
+}
+
+export function fixArabicScriptWordForSvg(inputWord){    
+    let context = true;
+    let ret = [];
+    //const inputWord = inputWord.split('');
+    for(let i = 0, l = inputWord.length; i < l; i++){
+        let code = inputWord[i].charCodeAt(0);
+        let nextCode = inputWord[i + 1] ? inputWord[i + 1].charCodeAt(0) : 0;
+        if(!chars[code]){             
+            ret.push(inputWord[i]);
+            continue;
+        }                
+        if(context){            
+            if(i == l - 1){                
+                ret.push(chars[code].isolated);
+            } else {
+                // special case for لا
+                if(code == 1604 && nextCode == 1575){
+                    ret.push(chars[5000].initial);
+                    i++;
+                    context = true;
+                    continue;
+                }
+
+                ret.push(chars[code].initial);
+            }            
+        } else {
+            if(i == l - 1){                
+                ret.push(chars[code].final);
+            } else {
+                // special case for ﻼ
+                if(code == 1604 && nextCode == 1575){
+                    ret.push(chars[5000].final);
+                    i++;
+                    context = true;
+                    continue;
+                }
+                if(chars[code].medial == ''){                    
+                    ret.push(chars[code].final);
+                } else{                    
+                    ret.push(chars[code].medial);
+                }                
+            }
+        }        
+        context = (chars[code].medial == '');        
+    }   
+    
+    return ret.reverse().join('');
+}