/**
* @license
* Copyright (c) 2017 Aras Abbasi
*
* Licensed under the MIT License.
* http://opensource.org/licenses/mit-license
*/
import { jsPDF } from "../jspdf.js";
/**
* jsPDF arabic parser PlugIn
*
* @name arabic
* @module
*/
(function(jsPDFAPI) {
"use strict";
/**
* Arabic shape substitutions: char code => (isolated, final, initial, medial).
* Arabic Substition A
*/
var arabicSubstitionA = {
0x0621: [0xfe80], // ARABIC LETTER HAMZA
0x0622: [0xfe81, 0xfe82], // ARABIC LETTER ALEF WITH MADDA ABOVE
0x0623: [0xfe83, 0xfe84], // ARABIC LETTER ALEF WITH HAMZA ABOVE
0x0624: [0xfe85, 0xfe86], // ARABIC LETTER WAW WITH HAMZA ABOVE
0x0625: [0xfe87, 0xfe88], // ARABIC LETTER ALEF WITH HAMZA BELOW
0x0626: [0xfe89, 0xfe8a, 0xfe8b, 0xfe8c], // ARABIC LETTER YEH WITH HAMZA ABOVE
0x0627: [0xfe8d, 0xfe8e], // ARABIC LETTER ALEF
0x0628: [0xfe8f, 0xfe90, 0xfe91, 0xfe92], // ARABIC LETTER BEH
0x0629: [0xfe93, 0xfe94], // ARABIC LETTER TEH MARBUTA
0x062a: [0xfe95, 0xfe96, 0xfe97, 0xfe98], // ARABIC LETTER TEH
0x062b: [0xfe99, 0xfe9a, 0xfe9b, 0xfe9c], // ARABIC LETTER THEH
0x062c: [0xfe9d, 0xfe9e, 0xfe9f, 0xfea0], // ARABIC LETTER JEEM
0x062d: [0xfea1, 0xfea2, 0xfea3, 0xfea4], // ARABIC LETTER HAH
0x062e: [0xfea5, 0xfea6, 0xfea7, 0xfea8], // ARABIC LETTER KHAH
0x062f: [0xfea9, 0xfeaa], // ARABIC LETTER DAL
0x0630: [0xfeab, 0xfeac], // ARABIC LETTER THAL
0x0631: [0xfead, 0xfeae], // ARABIC LETTER REH
0x0632: [0xfeaf, 0xfeb0], // ARABIC LETTER ZAIN
0x0633: [0xfeb1, 0xfeb2, 0xfeb3, 0xfeb4], // ARABIC LETTER SEEN
0x0634: [0xfeb5, 0xfeb6, 0xfeb7, 0xfeb8], // ARABIC LETTER SHEEN
0x0635: [0xfeb9, 0xfeba, 0xfebb, 0xfebc], // ARABIC LETTER SAD
0x0636: [0xfebd, 0xfebe, 0xfebf, 0xfec0], // ARABIC LETTER DAD
0x0637: [0xfec1, 0xfec2, 0xfec3, 0xfec4], // ARABIC LETTER TAH
0x0638: [0xfec5, 0xfec6, 0xfec7, 0xfec8], // ARABIC LETTER ZAH
0x0639: [0xfec9, 0xfeca, 0xfecb, 0xfecc], // ARABIC LETTER AIN
0x063a: [0xfecd, 0xfece, 0xfecf, 0xfed0], // ARABIC LETTER GHAIN
0x0641: [0xfed1, 0xfed2, 0xfed3, 0xfed4], // ARABIC LETTER FEH
0x0642: [0xfed5, 0xfed6, 0xfed7, 0xfed8], // ARABIC LETTER QAF
0x0643: [0xfed9, 0xfeda, 0xfedb, 0xfedc], // ARABIC LETTER KAF
0x0644: [0xfedd, 0xfede, 0xfedf, 0xfee0], // ARABIC LETTER LAM
0x0645: [0xfee1, 0xfee2, 0xfee3, 0xfee4], // ARABIC LETTER MEEM
0x0646: [0xfee5, 0xfee6, 0xfee7, 0xfee8], // ARABIC LETTER NOON
0x0647: [0xfee9, 0xfeea, 0xfeeb, 0xfeec], // ARABIC LETTER HEH
0x0648: [0xfeed, 0xfeee], // ARABIC LETTER WAW
0x0649: [0xfeef, 0xfef0, 64488, 64489], // ARABIC LETTER ALEF MAKSURA
0x064a: [0xfef1, 0xfef2, 0xfef3, 0xfef4], // ARABIC LETTER YEH
0x0671: [0xfb50, 0xfb51], // ARABIC LETTER ALEF WASLA
0x0677: [0xfbdd], // ARABIC LETTER U WITH HAMZA ABOVE
0x0679: [0xfb66, 0xfb67, 0xfb68, 0xfb69], // ARABIC LETTER TTEH
0x067a: [0xfb5e, 0xfb5f, 0xfb60, 0xfb61], // ARABIC LETTER TTEHEH
0x067b: [0xfb52, 0xfb53, 0xfb54, 0xfb55], // ARABIC LETTER BEEH
0x067e: [0xfb56, 0xfb57, 0xfb58, 0xfb59], // ARABIC LETTER PEH
0x067f: [0xfb62, 0xfb63, 0xfb64, 0xfb65], // ARABIC LETTER TEHEH
0x0680: [0xfb5a, 0xfb5b, 0xfb5c, 0xfb5d], // ARABIC LETTER BEHEH
0x0683: [0xfb76, 0xfb77, 0xfb78, 0xfb79], // ARABIC LETTER NYEH
0x0684: [0xfb72, 0xfb73, 0xfb74, 0xfb75], // ARABIC LETTER DYEH
0x0686: [0xfb7a, 0xfb7b, 0xfb7c, 0xfb7d], // ARABIC LETTER TCHEH
0x0687: [0xfb7e, 0xfb7f, 0xfb80, 0xfb81], // ARABIC LETTER TCHEHEH
0x0688: [0xfb88, 0xfb89], // ARABIC LETTER DDAL
0x068c: [0xfb84, 0xfb85], // ARABIC LETTER DAHAL
0x068d: [0xfb82, 0xfb83], // ARABIC LETTER DDAHAL
0x068e: [0xfb86, 0xfb87], // ARABIC LETTER DUL
0x0691: [0xfb8c, 0xfb8d], // ARABIC LETTER RREH
0x0698: [0xfb8a, 0xfb8b], // ARABIC LETTER JEH
0x06a4: [0xfb6a, 0xfb6b, 0xfb6c, 0xfb6d], // ARABIC LETTER VEH
0x06a6: [0xfb6e, 0xfb6f, 0xfb70, 0xfb71], // ARABIC LETTER PEHEH
0x06a9: [0xfb8e, 0xfb8f, 0xfb90, 0xfb91], // ARABIC LETTER KEHEH
0x06ad: [0xfbd3, 0xfbd4, 0xfbd5, 0xfbd6], // ARABIC LETTER NG
0x06af: [0xfb92, 0xfb93, 0xfb94, 0xfb95], // ARABIC LETTER GAF
0x06b1: [0xfb9a, 0xfb9b, 0xfb9c, 0xfb9d], // ARABIC LETTER NGOEH
0x06b3: [0xfb96, 0xfb97, 0xfb98, 0xfb99], // ARABIC LETTER GUEH
0x06ba: [0xfb9e, 0xfb9f], // ARABIC LETTER NOON GHUNNA
0x06bb: [0xfba0, 0xfba1, 0xfba2, 0xfba3], // ARABIC LETTER RNOON
0x06be: [0xfbaa, 0xfbab, 0xfbac, 0xfbad], // ARABIC LETTER HEH DOACHASHMEE
0x06c0: [0xfba4, 0xfba5], // ARABIC LETTER HEH WITH YEH ABOVE
0x06c1: [0xfba6, 0xfba7, 0xfba8, 0xfba9], // ARABIC LETTER HEH GOAL
0x06c5: [0xfbe0, 0xfbe1], // ARABIC LETTER KIRGHIZ OE
0x06c6: [0xfbd9, 0xfbda], // ARABIC LETTER OE
0x06c7: [0xfbd7, 0xfbd8], // ARABIC LETTER U
0x06c8: [0xfbdb, 0xfbdc], // ARABIC LETTER YU
0x06c9: [0xfbe2, 0xfbe3], // ARABIC LETTER KIRGHIZ YU
0x06cb: [0xfbde, 0xfbdf], // ARABIC LETTER VE
0x06cc: [0xfbfc, 0xfbfd, 0xfbfe, 0xfbff], // ARABIC LETTER FARSI YEH
0x06d0: [0xfbe4, 0xfbe5, 0xfbe6, 0xfbe7], //ARABIC LETTER E
0x06d2: [0xfbae, 0xfbaf], // ARABIC LETTER YEH BARREE
0x06d3: [0xfbb0, 0xfbb1] // ARABIC LETTER YEH BARREE WITH HAMZA ABOVE
};
/*
var ligaturesSubstitutionA = {
0xFBEA: []// ARABIC LIGATURE YEH WITH HAMZA ABOVE WITH ALEF ISOLATED FORM
};
*/
var ligatures = {
0xfedf: {
0xfe82: 0xfef5, // ARABIC LIGATURE LAM WITH ALEF WITH MADDA ABOVE ISOLATED FORM
0xfe84: 0xfef7, // ARABIC LIGATURE LAM WITH ALEF WITH HAMZA ABOVE ISOLATED FORM
0xfe88: 0xfef9, // ARABIC LIGATURE LAM WITH ALEF WITH HAMZA BELOW ISOLATED FORM
0xfe8e: 0xfefb // ARABIC LIGATURE LAM WITH ALEF ISOLATED FORM
},
0xfee0: {
0xfe82: 0xfef6, // ARABIC LIGATURE LAM WITH ALEF WITH MADDA ABOVE FINAL FORM
0xfe84: 0xfef8, // ARABIC LIGATURE LAM WITH ALEF WITH HAMZA ABOVE FINAL FORM
0xfe88: 0xfefa, // ARABIC LIGATURE LAM WITH ALEF WITH HAMZA BELOW FINAL FORM
0xfe8e: 0xfefc // ARABIC LIGATURE LAM WITH ALEF FINAL FORM
},
0xfe8d: { 0xfedf: { 0xfee0: { 0xfeea: 0xfdf2 } } }, // ALLAH
0x0651: {
0x064c: 0xfc5e, // Shadda + Dammatan
0x064d: 0xfc5f, // Shadda + Kasratan
0x064e: 0xfc60, // Shadda + Fatha
0x064f: 0xfc61, // Shadda + Damma
0x0650: 0xfc62 // Shadda + Kasra
}
};
var arabic_diacritics = {
1612: 64606, // Shadda + Dammatan
1613: 64607, // Shadda + Kasratan
1614: 64608, // Shadda + Fatha
1615: 64609, // Shadda + Damma
1616: 64610 // Shadda + Kasra
};
var alfletter = [1570, 1571, 1573, 1575];
var noChangeInForm = -1;
var isolatedForm = 0;
var finalForm = 1;
var initialForm = 2;
var medialForm = 3;
jsPDFAPI.__arabicParser__ = {};
//private
var isInArabicSubstitutionA = (jsPDFAPI.__arabicParser__.isInArabicSubstitutionA = function(
letter
) {
return typeof arabicSubstitionA[letter.charCodeAt(0)] !== "undefined";
});
var isArabicLetter = (jsPDFAPI.__arabicParser__.isArabicLetter = function(
letter
) {
return (
typeof letter === "string" &&
/^[\u0600-\u06FF\u0750-\u077F\u08A0-\u08FF\uFB50-\uFDFF\uFE70-\uFEFF]+$/.test(
letter
)
);
});
var isArabicEndLetter = (jsPDFAPI.__arabicParser__.isArabicEndLetter = function(
letter
) {
return (
isArabicLetter(letter) &&
isInArabicSubstitutionA(letter) &&
arabicSubstitionA[letter.charCodeAt(0)].length <= 2
);
});
var isArabicAlfLetter = (jsPDFAPI.__arabicParser__.isArabicAlfLetter = function(
letter
) {
return (
isArabicLetter(letter) && alfletter.indexOf(letter.charCodeAt(0)) >= 0
);
});
jsPDFAPI.__arabicParser__.arabicLetterHasIsolatedForm = function(letter) {
return (
isArabicLetter(letter) &&
isInArabicSubstitutionA(letter) &&
arabicSubstitionA[letter.charCodeAt(0)].length >= 1
);
};
var arabicLetterHasFinalForm = (jsPDFAPI.__arabicParser__.arabicLetterHasFinalForm = function(
letter
) {
return (
isArabicLetter(letter) &&
isInArabicSubstitutionA(letter) &&
arabicSubstitionA[letter.charCodeAt(0)].length >= 2
);
});
jsPDFAPI.__arabicParser__.arabicLetterHasInitialForm = function(letter) {
return (
isArabicLetter(letter) &&
isInArabicSubstitutionA(letter) &&
arabicSubstitionA[letter.charCodeAt(0)].length >= 3
);
};
var arabicLetterHasMedialForm = (jsPDFAPI.__arabicParser__.arabicLetterHasMedialForm = function(
letter
) {
return (
isArabicLetter(letter) &&
isInArabicSubstitutionA(letter) &&
arabicSubstitionA[letter.charCodeAt(0)].length == 4
);
});
var resolveLigatures = (jsPDFAPI.__arabicParser__.resolveLigatures = function(
letters
) {
var i = 0;
var tmpLigatures = ligatures;
var result = "";
var effectedLetters = 0;
for (i = 0; i < letters.length; i += 1) {
if (typeof tmpLigatures[letters.charCodeAt(i)] !== "undefined") {
effectedLetters++;
tmpLigatures = tmpLigatures[letters.charCodeAt(i)];
if (typeof tmpLigatures === "number") {
result += String.fromCharCode(tmpLigatures);
tmpLigatures = ligatures;
effectedLetters = 0;
}
if (i === letters.length - 1) {
tmpLigatures = ligatures;
result += letters.charAt(i - (effectedLetters - 1));
i = i - (effectedLetters - 1);
effectedLetters = 0;
}
} else {
tmpLigatures = ligatures;
result += letters.charAt(i - effectedLetters);
i = i - effectedLetters;
effectedLetters = 0;
}
}
return result;
});
jsPDFAPI.__arabicParser__.isArabicDiacritic = function(letter) {
return (
letter !== undefined &&
arabic_diacritics[letter.charCodeAt(0)] !== undefined
);
};
var getCorrectForm = (jsPDFAPI.__arabicParser__.getCorrectForm = function(
currentChar,
beforeChar,
nextChar
) {
if (!isArabicLetter(currentChar)) {
return -1;
}
if (isInArabicSubstitutionA(currentChar) === false) {
return noChangeInForm;
}
if (
!arabicLetterHasFinalForm(currentChar) ||
(!isArabicLetter(beforeChar) && !isArabicLetter(nextChar)) ||
(!isArabicLetter(nextChar) && isArabicEndLetter(beforeChar)) ||
(isArabicEndLetter(currentChar) && !isArabicLetter(beforeChar)) ||
(isArabicEndLetter(currentChar) && isArabicAlfLetter(beforeChar)) ||
(isArabicEndLetter(currentChar) && isArabicEndLetter(beforeChar))
) {
return isolatedForm;
}
if (
arabicLetterHasMedialForm(currentChar) &&
isArabicLetter(beforeChar) &&
!isArabicEndLetter(beforeChar) &&
isArabicLetter(nextChar) &&
arabicLetterHasFinalForm(nextChar)
) {
return medialForm;
}
if (isArabicEndLetter(currentChar) || !isArabicLetter(nextChar)) {
return finalForm;
}
return initialForm;
});
/**
* @name processArabic
* @function
* @param {string} text
* @returns {string}
*/
var parseArabic = function(text) {
text = text || "";
var result = "";
var i = 0;
var j = 0;
var position = 0;
var currentLetter = "";
var prevLetter = "";
var nextLetter = "";
var words = text.split("\\s+");
var newWords = [];
for (i = 0; i < words.length; i += 1) {
newWords.push("");
for (j = 0; j < words[i].length; j += 1) {
currentLetter = words[i][j];
prevLetter = words[i][j - 1];
nextLetter = words[i][j + 1];
if (isArabicLetter(currentLetter)) {
position = getCorrectForm(currentLetter, prevLetter, nextLetter);
if (position !== -1) {
newWords[i] += String.fromCharCode(
arabicSubstitionA[currentLetter.charCodeAt(0)][position]
);
} else {
newWords[i] += currentLetter;
}
} else {
newWords[i] += currentLetter;
}
}
newWords[i] = resolveLigatures(newWords[i]);
}
result = newWords.join(" ");
return result;
};
var processArabic = (jsPDFAPI.__arabicParser__.processArabic = jsPDFAPI.processArabic = function() {
var text =
typeof arguments[0] === "string" ? arguments[0] : arguments[0].text;
var tmpText = [];
var result;
if (Array.isArray(text)) {
var i = 0;
tmpText = [];
for (i = 0; i < text.length; i += 1) {
if (Array.isArray(text[i])) {
tmpText.push([parseArabic(text[i][0]), text[i][1], text[i][2]]);
} else {
tmpText.push([parseArabic(text[i])]);
}
}
result = tmpText;
} else {
result = parseArabic(text);
}
if (typeof arguments[0] === "string") {
return result;
} else {
arguments[0].text = result;
return arguments[0];
}
});
jsPDFAPI.events.push(["preProcessText", processArabic]);
})(jsPDF.API);