// -*- mode: java; -*- // Indian Language Converter - transliterates from Roman scripts to // Indic scripts. // Copyright (C) 2005, 2006 Vijay Lakshminarayanan // Indian Language Converter is free software; you can redistribute it // and/or modify it under the terms of the GNU General Public License // as published by the Free Software Foundation; either version 2 of // the License, or (at your option) any later version. // This program is distributed in the hope that it will be useful, but // WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU // General Public License for more details. // You should have received a copy of the GNU General Public License // along with this program; if not, write to the Free Software // Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA // 02110-1301, USA. // $Id: converter.js,v 1.1.1.1 2006-05-26 11:49:07 vijay Exp $ // Author: Vijay Lakshminarayanan // $Date: 2006-05-26 11:49:07 $ var unicodeEngine = function() { this.vowels = "(A)|(E)|(H)|(I)|(M)|(O)|(a((a)|(e)|(i)|(u))?)|(e(e)?)|(i)|(o((a)|(o))?)|(R((u)|(U))?)|(R)|(u)|(U)" this.consonants = "(B(h)?)|(Ch)|(D(h)?)|(J(h)?)|(K(h)?)|(G(h)?)|(L)|(N)|(S(h)?)|(T(h)?)|(b(h)?)|(ch)|(d(h)?)|(f)|(g(h)?)|(h)|(j(h)?)|(k(h)?)|(l)|(m)|(n((G)|(Y))?)|(p(h)?)|(r(R)?)|(s(h)?)|(t(h)?)|(v)|(w)|(y)" this.letter_codes = { "~a" : "ಅ", "~aa" : "ಆ", "~A" : "ಆ", "~i" : "ಇ", "~ee" : "ಈ", "~I" : "ಈ", "~u" : "ಉ", "~oo" : "ಊ", "~U" : "ಊ", "~e" : "ಎ", "~ae" : "ಏ", "~E" : "ಏ", "~ai" : "ಐ", "~o" : "ಒ", "~oa" : "ಓ", "~O" : "ಓ", "~au" : "ಔ", "~Ru" : "ಋ", "~RU" : "ೠ", "~R" : "ರ", "~r" : "ರ", "a" : "", "ki" : "Q", "aa" : "ಾ", "A" : "ಾ", "i" : "ಿ", "ee" : "ೀ", "I" : "ೀ", "u" : "ು", "oo" : "ೂ", "U" : "ೂ", "e" : "ೆ", "ae" : "ೇ", "E" : "ೇ", "ai" : "ೈ", "o" : "ೊ", "oa" : "ೋ", "O" : "ೋ", "au" : "ೌ", "Ru" : "ೃ", "RU" : "ೄ", "k" : "ಕ", "K" : "ಖ", "kh" : "ಖ", "Kh" : "ಖ", "g" : "ಗ", "gh" : "ಘ", "G" : "ಘ", "Gh" : "ಘ", "nG" : "ಙ", "ch" : "ಚ", "Ch" : "ಛ", "j" : "ಜ", "jh" : "ಝ", "J" : "ಝ", "Jh" : "ಝ", "nY" : "ಞ", "t" : "ತ", "T" : "ಟ", "d" : "ದ", "N" : "ಣ", "th" : "ಥ", "Th" : "ಠ", "dh" : "ಧ", "D" : "ಡ", "Dh" : "ಧ", "n" : "ನ", "p" : "ಪ", "ph" : "ಫ", "b" : "ಬ", "B" : "ಭ", "bh" : "ಭ", "Bh" : "ಭ", "m" : "ಮ", "y" : "ಯ", "r" : "ರ", "rR" : "ರ", "l" : "ಲ", "L" : "ಳ", "v" : "ವ", "w" : "ವ", "sh" : "ಶ", "Sh" : "ಷ", "s" : "ಸ", "S" : "ಶ", "h" : "ಹ", "f" : "ಫ", "M" : "ಂ", "H" : "ಃ", "~M" : "ಂ", "~H" : "ಃ", "*" : "್" } } unicodeEngine.prototype.split_word = function(word) { var syllables = new Array(0); var vowel_start_p = true; while (word.length) { re = new RegExp(this.vowels); var index = word.search(this.vowels); if (index == 0) { //the vowel's at the start of word var matched = re.exec(word)[0]; //what is it? if (vowel_start_p) { syllables.push(("~"+matched)); //one more to the syllables } else { syllables.push(matched); } vowel_start_p = true; word = word.substring(matched.length); } else { re = new RegExp(this.consonants); var index = word.search(this.consonants); if (index == 0) { var matched = re.exec(word)[0]; syllables.push(matched); vowel_start_p = false; word = word.substring(matched.length); //look ahead for virama setting var next = word.search(this.vowels); if (next != 0 || word.length == 0) syllables.push('*'); } else { syllables.push(word.charAt(0)); word = word.substring(1); } } } return syllables; } unicodeEngine.prototype.match_code = function(syllable_mcc) { var matched = this.letter_codes[syllable_mcc]; if (matched != null) return matched; return syllable_mcc; } unicodeEngine.prototype.one_word = function(word_ow) { if (!word_ow) return ""; var syllables_ow = this.split_word(word_ow); var letters_ow = new Array(0); for (var i_ow = 0; i_ow < syllables_ow.length; i_ow++) { letters_ow.push(this.match_code(syllables_ow[i_ow])); } return letters_ow.join(""); } unicodeEngine.prototype.many_words = function(sentence) { var regex = "((" + this.vowels + ")|(" + this.consonants + "))+"; var words = new Array(0); while (sentence.length >= 1) { re = new RegExp("^``" + regex); var match = re.exec(sentence); if (match != null) { match = match[0]; words.push("`"); words.push(this.one_word(match.substring(2))); sentence = sentence.substring(match.length); } else { re = new RegExp("^`" + regex); match = re.exec(sentence); if (match != null) { match = match[0]; words.push(match.substring(1)); sentence = sentence.substring(match.length); } else { re = new RegExp("^" + regex); match = re.exec(sentence); if (match != null) { match = match[0]; words.push(this.one_word(match)); sentence = sentence.substring(match.length); } else { if (sentence.indexOf('') == 0) { var pos = sentence.indexOf(''); if (pos != -1) { words.push('' + sentence.substr(10, pos-10) + ''); // words.push(sentence.substr(10, pos-10)); sentence = sentence.substring(pos + 10, sentence.length); } else { // words.push(sentence.substr(10)); words.push('' + sentence.substr(10) + ''); sentence = ''; } } else if (sentence.indexOf('') == 0) { sentence = sentence.substring(10); } else { words.push(sentence.charAt(0)); sentence = sentence.substring(1); } } } } } return words.join(""); } unicodeEngine.prototype.print_many_words = function(inputEle, outputEle) { var text_pmw = inputEle.value; text_pmw = text_pmw.replace(/\^/g, '¶'); text_pmw = text_pmw.replace(/\~j/g, 'Q'); text_pmw = this.many_words(text_pmw); var ans = ""; while (text_pmw.length) { var unicode_chars = /&#[0-9]+;/; re = unicode_chars; var matche = re.exec(text_pmw); if (matche != null) { matche = matche[0]; search = text_pmw.search(unicode_chars); ans += text_pmw.substring(0, search); ans += String.fromCharCode(matche.match(/[0-9]+/)); text_pmw = text_pmw.substring(search + matche.length); } else { ans += text_pmw.substring(0); text_pmw = ""; } } // document.convarea.converted_text.value = ans; ans = ans.replace(/¶/g, ''); ans = ans.replace(/\n/g, '
'); outputEle.innerHTML = ans; var html_txt = ""; for (i=0; i