pinyin_converter.js

// Generated by CoffeeScript 1.9.2

/*
PinyinConverter by David Chanin and Jen Liu @quizlet 2013
Inspired by http://stackoverflow.com/questions/1598856/convert-numbered-to-accentuated-pinyin/5607888#5607888

Authors: David Chanin and Jen Liu
Github: chanind
email: dchanin@quizlet.com
 */

(function() {
  var PinyinConverter;

  PinyinConverter = {
    pinyinRegex: /(shuang|chuang|zhuang|xiang|qiong|shuai|niang|guang|sheng|kuang|shang|jiong|huang|jiang|shuan|xiong|zhang|zheng|zhong|zhuai|zhuan|qiang|chang|liang|chuan|cheng|chong|chuai|hang|peng|chuo|piao|pian|chua|ping|yang|pang|chui|chun|chen|chan|chou|chao|chai|zhun|mang|meng|weng|shai|shei|miao|zhui|mian|yong|ming|wang|zhuo|zhua|shao|yuan|bing|zhen|fang|feng|zhan|zhou|zhao|zhei|zhai|rang|suan|reng|song|seng|dang|deng|dong|xuan|sang|rong|duan|cuan|cong|ceng|cang|diao|ruan|dian|ding|shou|xing|zuan|jiao|zong|zeng|zang|jian|tang|teng|tong|bian|biao|shan|tuan|huan|xian|huai|tiao|tian|hong|xiao|heng|ying|jing|shen|beng|kuan|kuai|nang|neng|nong|juan|kong|nuan|keng|kang|shua|niao|guan|nian|ting|shuo|guai|ning|quan|qiao|shui|gong|geng|gang|qian|bang|lang|leng|long|qing|ling|luan|shun|lian|liao|zhi|lia|liu|qin|lun|lin|luo|lan|lou|qiu|gai|gei|gao|gou|gan|gen|lao|lei|lai|que|gua|guo|nin|gui|niu|nie|gun|qie|qia|jun|kai|kei|kao|kou|kan|ken|qun|nun|nuo|xia|kua|kuo|nen|kui|nan|nou|kun|jue|nao|nei|hai|hei|hao|hou|han|hen|nai|rou|xiu|jin|hua|huo|tie|hui|tun|tui|hun|tuo|tan|jiu|zai|zei|zao|zou|zan|zen|eng|tou|tao|tei|tai|zuo|zui|xin|zun|jie|jia|run|diu|cai|cao|cou|can|cen|die|dia|xue|rui|cuo|cui|dun|cun|cin|ruo|rua|dui|sai|sao|sou|san|sen|duo|den|dan|dou|suo|sui|dao|sun|dei|zha|zhe|dai|xun|ang|ong|wai|fen|fan|fou|fei|zhu|wei|wan|min|miu|mie|wen|men|lie|chi|cha|che|man|mou|mao|mei|mai|yao|you|yan|chu|pin|pie|yin|pen|pan|pou|pao|shi|sha|she|pei|pai|yue|bin|bie|yun|nüe|lve|shu|ben|ban|bao|bei|bai|lüe|nve|ren|ran|rao|xie|re|ri|si|su|se|ru|sa|cu|ce|ca|ji|ci|zi|zu|ze|za|hu|he|ha|ju|ku|ke|qi|ka|gu|ge|ga|li|lu|le|qu|la|ni|xi|nu|ne|na|ti|tu|te|ta|xu|di|du|de|bo|lv|ba|ai|ei|ao|ou|an|en|er|da|wu|wa|wo|fu|fo|fa|nv|mi|mu|yi|ya|ye|me|mo|ma|pi|pu|po|yu|pa|bi|nü|bu|lü|e|o|a)r?[1-5]/gi,
    vowels: {
      'a*': '0',
      'e*': '1',
      'i*': '2',
      'o*': '3',
      'u*': '4',
      'ü*': '5',
      'A*': '6',
      'E*': '7',
      'I*': '8',
      'O*': '9',
      'U*': '10',
      'Ü*': '11'
    },
    pinyin: {
      1: ['ā', 'ē', 'ī', 'ō', 'ū', 'ǖ', 'Ā', 'Ē', 'Ī', 'Ō', 'Ū', 'Ǖ'],
      2: ['á', 'é', 'í', 'ó', 'ú', 'ǘ', 'Á', 'É', 'Í', 'Ó', 'Ú', 'Ǘ'],
      3: ['ǎ', 'ě', 'ǐ', 'ǒ', 'ǔ', 'ǚ', 'Ǎ', 'Ě', 'Ǐ', 'Ǒ', 'Ǔ', 'Ǚ'],
      4: ['à', 'è', 'ì', 'ò', 'ù', 'ǜ', 'À', 'È', 'Ì', 'Ò', 'Ù', 'Ǜ'],
      5: ['a', 'e', 'i', 'o', 'u', 'ü', 'A', 'E', 'I', 'O', 'U', 'Ü']
    },
    convert: function(string) {
      var j, len, match, matches, replacement;
      matches = string.match(this.pinyinRegex);
      if (!matches) {
        return string;
      }
      for (j = 0, len = matches.length; j < len; j++) {
        match = matches[j];
        replacement = this.getReplacement(match);
        string = string.replace(match, replacement);
      }
      return string;
    },
    getReplacement: function(match) {
      var accentMap, accentedVowelChar, base, replacedWord, tone, vowel, vowelChar, vowelNum, word;
      accentMap = this.getAccentMap();
      tone = match.slice(-1);
      word = match.slice(0, -1).replace('v', 'ü').replace('V', 'Ü');
      for (base in accentMap) {
        vowel = accentMap[base];
        if (word.indexOf(base) >= 0) {
          vowelChar = vowel.match(/.\*/)[0];
          vowelNum = this.vowels[vowelChar];
          accentedVowelChar = this.pinyin[tone.toString()][vowelNum];
          replacedWord = word.replace(base, vowel).replace(vowelChar, accentedVowelChar);
          return replacedWord;
        }
      }
      return match;
    },
    getAccentMap: function() {
      var base, i, j, len, nostars, ref, stars, starsArray;
      if (!this.accentMap) {
        stars = 'a*i a*o e*i ia* ia*o ie* io* iu* ' + 'A*I A*O E*I IA* IA*O IE* IO* IU* ' + 'o*u ua* ua*i ue* ui* uo* üe* ' + 'O*U UA* UA*I UE* UI* UO* ÜE* ' + 'A* E* I* O* U* Ü* ' + 'a* e* i* o* u* ü*';
        nostars = stars.replace(/\*/g, '');
        starsArray = stars.split(' ');
        this.accentMap = {};
        ref = nostars.split(' ');
        for (i = j = 0, len = ref.length; j < len; i = ++j) {
          base = ref[i];
          this.accentMap[base] = starsArray[i];
        }
      }
      return this.accentMap;
    }
  };

  (function(root, factory) {
    if (typeof define === 'function' && define.amd) {
      return define(factory);
    } else if (typeof exports === 'object') {
      return module.exports = factory();
    } else {
      return root.PinyinConverter = factory();
    }
  })(this, function() {
    return PinyinConverter;
  });

}).call(this);