root/lang/actionscript/as3tinysegmenter/src/org/coderepos/text/TinySegmenter.as

package org.coderepos.text
{

  public class TinySegmenter
  {

  private static var BIAS__:int = -332
  private static var BC1__:Object = {"HH":6,"II":2461,"KH":406,"OH":-1378};
  private static var BC2__:Object = {"AA":-3267,"AI":2744,"AN":-878,"HH":-4070,"HM":-1711,"HN":4012,"HO":3761,"IA":1327,"IH":-1184,"II":-1332,"IK":1721,"IO":5492,"KI":3831,"KK":-8741,"MH":-3132,"MK":3334,"OO":-2920};
  private static var BC3__:Object = {"HH":996,"HI":626,"HK":-721,"HN":-1307,"HO":-836,"IH":-301,"KK":2762,"MK":1079,"MM":4034,"OA":-1652,"OH":266};
  private static var BP1__:Object = {"BB":295,"OB":304,"OO":-125,"UB":352};
  private static var BP2__:Object = {"BO":60,"OO":-1762};
  private static var BQ1__:Object = {"BHH":1150,"BHM":1521,"BII":-1158,"BIM":886,"BMH":1208,"BNH":449,"BOH":-91,"BOO":-2597,"OHI":451,"OIH":-296,"OKA":1851,"OKH":-1020,"OKK":904,"OOO":2965};
  private static var BQ2__:Object = {"BHH":118,"BHI":-1159,"BHM":466,"BIH":-919,"BKK":-1720,"BKO":864,"OHH":-1139,"OHM":-181,"OIH":153,"UHI":-1146};
  private static var BQ3__:Object = {"BHH":-792,"BHI":2664,"BII":-299,"BKI":419,"BMH":937,"BMM":8335,"BNN":998,"BOH":775,"OHH":2174,"OHM":439,"OII":280,"OKH":1798,"OKI":-793,"OKO":-2242,"OMH":-2402,"OOO":11699};
  private static var BQ4__:Object = {"BHH":-3895,"BIH":3761,"BII":-4654,"BIK":1348,"BKK":-1806,"BMI":-3385,"BOO":-12396,"OAH":926,"OHH":266,"OHK":-2036,"ONN":-973};
  private static var BW1__:Object = {",と":660,",同":727,"B1あ":1404,"B1同":542,"、と":660,"、同":727,"」と":1682,"あっ":1505,"いう":1743,"いっ":-2055,"いる":672,"うし":-4817,"うん":665,"から":3472,"がら":600,"こう":-790,"こと":2083,"こん":-1262,"さら":-4143,"さん":4573,"した":2641,"して":1104,"すで":-3399,"そこ":1977,"それ":-871,"たち":1122,"ため":601,"った":3463,"つい":-802,"てい":805,"てき":1249,"でき":1127,"です":3445,"では":844,"とい":-4915,"とみ":1922,"どこ":3887,"ない":5713,"なっ":3015,"など":7379,"なん":-1113,"にし":2468,"には":1498,"にも":1671,"に対":-912,"の一":-501,"の中":741,"ませ":2448,"まで":1711,"まま":2600,"まる":-2155,"やむ":-1947,"よっ":-2565,"れた":2369,"れで":-913,"をし":1860,"を見":731,"亡く":-1886,"京都":2558,"取り":-2784,"大き":-2604,"大阪":1497,"平方":-2314,"引き":-1336,"日本":-195,"本当":-2423,"毎日":-2113,"目指":-724,"Ｂ１あ":1404,"Ｂ１同":542,"｣と":1682};
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  private static var UP1__:Object = {"O":-214};
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  private static var UW6__:Object = {",":227,".":808,"1":-270,"E1":306,"、":227,"。":808,"あ":-307,"う":189,"か":241,"が":-73,"く":-121,"こ":-200,"じ":1782,"す":383,"た":-428,"っ":573,"て":-1014,"で":101,"と":-105,"な":-253,"に":-149,"の":-417,"は":-236,"も":-206,"り":187,"る":-135,"を":195,"ル":-673,"ン":-496,"一":-277,"中":201,"件":-800,"会":624,"前":302,"区":1792,"員":-1212,"委":798,"学":-960,"市":887,"広":-695,"後":535,"業":-697,"相":753,"社":-507,"福":974,"空":-822,"者":1811,"連":463,"郎":1082,"１":-270,"Ｅ１":306,"ﾙ":-673,"ﾝ":-496};
  
    private var _charType:Array;

    public function TinySegmenter() 
    {

      var _patterns:Object = {
        "[一二三四五六七八九十百千万億兆]":"M",
        "[一-龠々〆ヵヶ]":"H",
        "[ぁ-ん]":"I",
        "[ァ-ヴーｱ-ﾝﾞｰ]":"K",
        "[a-zA-Zａ-ｚＡ-Ｚ]":"A",
        "[0-9０-９]":"N"
      };

      _charType = new Array();
      for (var prop:String in _patterns) {
        var regexp:RegExp = new RegExp(prop);
        _charType.push([regexp, _patterns[prop]]);
      }

    }

    private function getCType(str:String):String 
    {
      for each(var set:Array in _charType) {
        if (str.match(set[0])) {
          return set[1];
        }
      }
      return "O";
    }

    private function ts(v:int):int 
    {
      return (v) ? v : 0;
    }

    public function segment(input:String):Array 
    {
      if (input == null || input == "") {
        return new Array();
      }
      var result:Array = new Array();
      var seg:Array = ["B3", "B2", "B1"];
      var ctype:Array = ["O", "O", "O"];
      var o:Array = input.split("");
      var l:int = o.length;
      var i:int = 0;
      for (i = 0; i < l; i++) {
        seg.push(o[i]);
        ctype.push(getCType(o[i]));
      }
      seg.push("E1");
      seg.push("E2");
      seg.push("E3");
      ctype.push("O");
      ctype.push("O");
      ctype.push("O");
      var word:String = seg[3];
      var p1:String = "U";
      var p2:String = "U";
      var p3:String = "U";
      l = seg.length;
      for (i = 4; i < l - 3; i++) {
        var score:int = BIAS__;
        var w1:String = seg[i-3];
        var w2:String = seg[i-2];
        var w3:String = seg[i-1];
        var w4:String = seg[i];
        var w5:String = seg[i+1];
        var w6:String = seg[i+2];
        var c1:String  = ctype[i-3];
        var c2:String  = ctype[i-2];
        var c3:String  = ctype[i-1];
        var c4:String  = ctype[i];
        var c5:String  = ctype[i+1];
        var c6:String  = ctype[i+2];
        score += ts(UP1__[p1]);
        score += ts(UP2__[p2]);
        score += ts(UP3__[p3]);
        score += ts(BP1__[p1 + p2]);
        score += ts(BP2__[p2 + p3]);
        score += ts(UW1__[w1]);
        score += ts(UW2__[w2]);
        score += ts(UW3__[w3]);
        score += ts(UW4__[w4]);
        score += ts(UW5__[w5]);
        score += ts(UW6__[w6]);
        score += ts(BW1__[w2 + w3]);
        score += ts(BW2__[w4 + w4]);
        score += ts(BW3__[w4 + w5]);
        score += ts(TW1__[w1 + w2 + w3]);
        score += ts(TW2__[w2 + w3 + w4]);
        score += ts(TW3__[w3 + w4 + w5]);
        score += ts(TW4__[w4 + w5 + w6]);
        score += ts(UC1__[c1]);
        score += ts(UC2__[c2]);
        score += ts(UC3__[c3]);
        score += ts(UC4__[c4]);
        score += ts(UC5__[c5]);
        score += ts(UC6__[c6]);
        score += ts(BC1__[c2 + c3]);
        score += ts(BC2__[c3 + c4]);
        score += ts(BC3__[c4 + c5]);
        score += ts(TC1__[c1 + c2 + c3]);
        score += ts(TC2__[c2 + c3 + c4]);
        score += ts(TC3__[c3 + c4 + c5]);
        score += ts(TC4__[c4 + c5 + c6]);
        score += ts(UQ1__[p1 + c1]);
        score += ts(UQ2__[p2 + c2]);
        //score += ts(UQ1__[p3 + c3]);
        score += ts(UQ3__[p3 + c3]);
        score += ts(BQ1__[p2 + c2 + c3]);
        score += ts(BQ2__[p2 + c3 + c4]);
        score += ts(BQ3__[p3 + c2 + c3]);
        score += ts(BQ4__[p3 + c3 + c4]);
        score += ts(TQ1__[p2 + c1 + c2 + c3]);
        score += ts(TQ2__[p2 + c2 + c3 + c4]);
        score += ts(TQ3__[p3 + c1 + c2 + c3]);
        score += ts(TQ4__[p3 + c2 + c3 + c4]);
        var p:String = "O";
        if (score > 0) {
          result.push(word);
          word = "";
          p = "B";
        }
        p1 = p2;
        p2 = p3;
        p3 = p;
        word += seg[i];
      }
      result.push(word);
      return result;
    }

  }

}