@mrizki/natural/lib/natural/tokenizers/tokenizer_ja.js

General natural language (tokenizing, stemming (English, Russian, Spanish), part-of-speech tagging, sentiment analysis, classification, inflection, phonetics, tfidf, WordNet, jaro-winkler, Levenshtein distance, Dice's Coefficient) facilities for node.

// Original copyright:
/*
 Copyright (c) 2008, Taku Kudo

 All rights reserved.

 Redistribution and use in source and binary forms, with or without
 modification, are permitted provided that the following conditions are met:

 * Redistributions of source code must retain the above copyright notice,
 this list of conditions and the following disclaimer.
 * Redistributions in binary form must reproduce the above copyright
 notice, this list of conditions and the following disclaimer in the
 documentation and/or other materials provided with the distribution.
 * Neither the name of the <ORGANIZATION> nor the names of its
 contributors may be used to endorse or promote products derived from this
 software without specific prior written permission.

 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
 CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

// This version:
/*
 Copyright (c) 2012, Guillaume Marty

 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
 in the Software without restriction, including without limitation the rights
 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 copies of the Software, and to permit persons to whom the Software is
 furnished to do so, subject to the following conditions:

 The above copyright notice and this permission notice shall be included in
 all copies or substantial portions of the Software.

 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 THE SOFTWARE.
 */

// TinySegmenter 0.1 -- Super compact Japanese tokenizer in Javascript
// (c) 2008 Taku Kudo <taku@chasen.org>
// TinySegmenter is freely distributable under the terms of a new BSD licence.
// For details, see http://chasen.org/~taku/software/TinySegmenter/LICENCE.txt

var Tokenizer = require('./tokenizer'),
    normalize = require('../normalizers/normalizer_ja').normalize_ja,
    util = require('util');



/**
 * @constructor
 */
var TokenizerJa = function() {
  this.chartype_ = [
    [/[〇一二三四五六七八九十百千万億兆]/, 'M'],
    [/[一-鿌〆]/, 'H'],
    [/[ぁ-ゟ]/, 'I'],
    [/[゠-ヿ]/, 'K'],
    [/[a-zA-Z]/, 'A'],
    [/[0-9]/, 'N']
  ];

  this.BIAS__ = -332;
  this.BC1__ = {'HH': 6, 'II': 2461, 'KH': 406, 'OH': -1378};
  this.BC2__ = {'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};
  this.BC3__ = {'HH': 996, 'HI': 626, 'HK': -721, 'HN': -1307, 'HO': -836, 'IH': -301, 'KK': 2762, 'MK': 1079, 'MM': 4034, 'OA': -1652, 'OH': 266};
  this.BP1__ = {'BB': 295, 'OB': 304, 'OO': -125, 'UB': 352};
  this.BP2__ = {'BO': 60, 'OO': -1762};
  this.BQ1__ = {'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};
  this.BQ2__ = {'BHH': 118, 'BHI': -1159, 'BHM': 466, 'BIH': -919, 'BKK': -1720, 'BKO': 864, 'OHH': -1139, 'OHM': -181, 'OIH': 153, 'UHI': -1146};
  this.BQ3__ = {'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};
  this.BQ4__ = {'BHH': -3895, 'BIH': 3761, 'BII': -4654, 'BIK': 1348, 'BKK': -1806, 'BMI': -3385, 'BOO': -12396, 'OAH': 926, 'OHH': 266, 'OHK': -2036, 'ONN': -973};
  this.BW1__ = {'，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};
  this.BW2__ = {'11': -669, '．．': -11822, '――': -5730, '−−': -13175, 'いう': -1609, 'うか': 2490, 'かし': -1350, 'かも': -602, 'から': -7194, 'かれ': 4612, 'がい': 853, 'がら': -3198, 'きた': 1941, 'くな': -1597, 'こと': -8392, 'この': -4193, 'させ': 4533, 'され': 13168, 'さん': -3977, 'しい': -1819, 'しか': -545, 'した': 5078, 'して': 972, 'しな': 939, 'その': -3744, 'たい': -1253, 'たた': -662, 'ただ': -3857, 'たち': -786, 'たと': 1224, 'たは': -939, 'った': 4589, 'って': 1647, 'っと': -2094, 'てい': 6144, 'てき': 3640, 'てく': 2551, 'ては': -3110, 'ても': -3065, 'でい': 2666, 'でき': -1528, 'でし': -3828, 'です': -4761, 'でも': -4203, 'とい': 1890, 'とこ': -1746, 'とと': -2279, 'との': 720, 'とみ': 5168, 'とも': -3941, 'ない': -2488, 'なが': -1313, 'など': -6509, 'なの': 2614, 'なん': 3099, 'にお': -1615, 'にし': 2748, 'にな': 2454, 'によ': -7236, 'に対': -14943, 'に従': -4688, 'に関': -11388, 'のか': 2093, 'ので': -7059, 'のに': -6041, 'のの': -6125, 'はい': 1073, 'はが': -1033, 'はず': -2532, 'ばれ': 1813, 'まし': -1316, 'まで': -6621, 'まれ': 5409, 'めて': -3153, 'もい': 2230, 'もの': -10713, 'らか': -944, 'らし': -1611, 'らに': -1897, 'りし': 651, 'りま': 1620, 'れた': 4270, 'れて': 849, 'れば': 4114, 'ろう': 6067, 'われ': 7901, 'を通': -11877, 'んだ': 728, 'んな': -4115, '一人': 602, '一方': -1375, '一日': 970, '一部': -1051, '上が': -4479, '会社': -1116, '出て': 2163, '分の': -7758, '同党': 970, '同日': -913, '大阪': -2471, '委員': -1250, '少な': -1050, '年度': -8669, '年間': -1626, '府県': -2363, '手権': -1982, '新聞': -4066, '日新': -722, '日本': -7068, '日米': 3372, '曜日': -601, '朝鮮': -2355, '本人': -2697, '東京': -1543, '然と': -1384, '社会': -1276, '立て': -990, '第に': -1612, '米国': -4268};
  this.BW3__ = {'あた': -2194, 'あり': 719, 'ある': 3846, 'い．': -1185, 'い。': -1185, 'いい': 5308, 'いえ': 2079, 'いく': 3029, 'いた': 2056, 'いっ': 1883, 'いる': 5600, 'いわ': 1527, 'うち': 1117, 'うと': 4798, 'えと': 1454, 'か．': 2857, 'か。': 2857, 'かけ': -743, 'かっ': -4098, 'かに': -669, 'から': 6520, 'かり': -2670, 'が，': 1816, 'が、': 1816, 'がき': -4855, 'がけ': -1127, 'がっ': -913, 'がら': -4977, 'がり': -2064, 'きた': 1645, 'けど': 1374, 'こと': 7397, 'この': 1542, 'ころ': -2757, 'さい': -714, 'さを': 976, 'し，': 1557, 'し、': 1557, 'しい': -3714, 'した': 3562, 'して': 1449, 'しな': 2608, 'しま': 1200, 'す．': -1310, 'す。': -1310, 'する': 6521, 'ず，': 3426, 'ず、': 3426, 'ずに': 841, 'そう': 428, 'た．': 8875, 'た。': 8875, 'たい': -594, 'たの': 812, 'たり': -1183, 'たる': -853, 'だ．': 4098, 'だ。': 4098, 'だっ': 1004, 'った': -4748, 'って': 300, 'てい': 6240, 'てお': 855, 'ても': 302, 'です': 1437, 'でに': -1482, 'では': 2295, 'とう': -1387, 'とし': 2266, 'との': 541, 'とも': -3543, 'どう': 4664, 'ない': 1796, 'なく': -903, 'など': 2135, 'に，': -1021, 'に、': -1021, 'にし': 1771, 'にな': 1906, 'には': 2644, 'の，': -724, 'の、': -724, 'の子': -1000, 'は，': 1337, 'は、': 1337, 'べき': 2181, 'まし': 1113, 'ます': 6943, 'まっ': -1549, 'まで': 6154, 'まれ': -793, 'らし': 1479, 'られ': 6820, 'るる': 3818, 'れ，': 854, 'れ、': 854, 'れた': 1850, 'れて': 1375, 'れば': -3246, 'れる': 1091, 'われ': -605, 'んだ': 606, 'んで': 798, 'カ月': 990, '会議': 860, '入り': 1232, '大会': 2217, '始め': 1681, '市': 965, '新聞': -5055, '日，': 974, '日、': 974, '社会': 2024};
  this.TC1__ = {'AAA': 1093, 'HHH': 1029, 'HHM': 580, 'HII': 998, 'HOH': -390, 'HOM': -331, 'IHI': 1169, 'IOH': -142, 'IOI': -1015, 'IOM': 467, 'MMH': 187, 'OOI': -1832};
  this.TC2__ = {'HHO': 2088, 'HII': -1023, 'HMM': -1154, 'IHI': -1965, 'KKH': 703, 'OII': -2649};
  this.TC3__ = {'AAA': -294, 'HHH': 346, 'HHI': -341, 'HII': -1088, 'HIK': 731, 'HOH': -1486, 'IHH': 128, 'IHI': -3041, 'IHO': -1935, 'IIH': -825, 'IIM': -1035, 'IOI': -542, 'KHH': -1216, 'KKA': 491, 'KKH': -1217, 'KOK': -1009, 'MHH': -2694, 'MHM': -457, 'MHO': 123, 'MMH': -471, 'NNH': -1689, 'NNO': 662, 'OHO': -3393};
  this.TC4__ = {'HHH': -203, 'HHI': 1344, 'HHK': 365, 'HHM': -122, 'HHN': 182, 'HHO': 669, 'HIH': 804, 'HII': 679, 'HOH': 446, 'IHH': 695, 'IHO': -2324, 'IIH': 321, 'III': 1497, 'IIO': 656, 'IOO': 54, 'KAK': 4845, 'KKA': 3386, 'KKK': 3065, 'MHH': -405, 'MHI': 201, 'MMH': -241, 'MMM': 661, 'MOM': 841};
  this.TQ1__ = {'BHHH': -227, 'BHHI': 316, 'BHIH': -132, 'BIHH': 60, 'BIII': 1595, 'BNHH': -744, 'BOHH': 225, 'BOOO': -908, 'OAKK': 482, 'OHHH': 281, 'OHIH': 249, 'OIHI': 200, 'OIIH': -68};
  this.TQ2__ = {'BIHH': -1401, 'BIII': -1033, 'BKAK': -543, 'BOOO': -5591};
  this.TQ3__ = {'BHHH': 478, 'BHHM': -1073, 'BHIH': 222, 'BHII': -504, 'BIIH': -116, 'BIII': -105, 'BMHI': -863, 'BMHM': -464, 'BOMH': 620, 'OHHH': 346, 'OHHI': 1729, 'OHII': 997, 'OHMH': 481, 'OIHH': 623, 'OIIH': 1344, 'OKAK': 2792, 'OKHH': 587, 'OKKA': 679, 'OOHH': 110, 'OOII': -685};
  this.TQ4__ = {'BHHH': -721, 'BHHM': -3604, 'BHII': -966, 'BIIH': -607, 'BIII': -2181, 'OAAA': -2763, 'OAKK': 180, 'OHHH': -294, 'OHHI': 2446, 'OHHO': 480, 'OHIH': -1573, 'OIHH': 1935, 'OIHI': -493, 'OIIH': 626, 'OIII': -4007, 'OKAK': -8156};
  this.TW1__ = {'につい': -4681, '東京都': 2026};
  this.TW2__ = {'ある程': -2049, 'いった': -1256, 'ころが': -2434, 'しょう': 3873, 'その後': -4430, 'だって': -1049, 'ていた': 1833, 'として': -4657, 'ともに': -4517, 'もので': 1882, '一気に': -792, '初めて': -1512, '同時に': -8097, '大きな': -1255, '対して': -2721, '社会党': -3216};
  this.TW3__ = {'いただ': -1734, 'してい': 1314, 'として': -4314, 'につい': -5483, 'にとっ': -5989, 'に当た': -6247, 'ので，': -727, 'ので、': -727, 'のもの': -600, 'れから': -3752, '十二月': -2287};
  this.TW4__ = {'いう．': 8576, 'いう。': 8576, 'からな': -2348, 'してい': 2958, 'たが，': 1516, 'たが、': 1516, 'ている': 1538, 'という': 1349, 'ました': 5543, 'ません': 1097, 'ようと': -4258, 'よると': 5865};
  this.UC1__ = {'A': 484, 'K': 93, 'M': 645, 'O': -505};
  this.UC2__ = {'A': 819, 'H': 1059, 'I': 409, 'M': 3987, 'N': 5775, 'O': 646};
  this.UC3__ = {'A': -1370, 'I': 2311};
  this.UC4__ = {'A': -2643, 'H': 1809, 'I': -1032, 'K': -3450, 'M': 3565, 'N': 3876, 'O': 6646};
  this.UC5__ = {'H': 313, 'I': -1238, 'K': -799, 'M': 539, 'O': -831};
  this.UC6__ = {'H': -506, 'I': -253, 'K': 87, 'M': 247, 'O': -387};
  this.UP1__ = {'O': -214};
  this.UP2__ = {'B': 69, 'O': 935};
  this.UP3__ = {'B': 189};
  this.UQ1__ = {'BH': 21, 'BI': -12, 'BK': -99, 'BN': 142, 'BO': -56, 'OH': -95, 'OI': 477, 'OK': 410, 'OO': -2422};
  this.UQ2__ = {'BH': 216, 'BI': 113, 'OK': 1759};
  this.UQ3__ = {'BA': -479, 'BH': 42, 'BI': 1913, 'BK': -7198, 'BM': 3160, 'BN': 6427, 'BO': 14761, 'OI': -827, 'ON': -3212};
  this.UW1__ = {'，': 156, '、': 156, '｢': -463, 'あ': -941, 'う': -127, 'が': -553, 'き': 121, 'こ': 505, 'で': -201, 'と': -547, 'ど': -123, 'に': -789, 'の': -185, 'は': -847, 'も': -466, 'や': -470, 'よ': 182, 'ら': -292, 'り': 208, 'れ': 169, 'を': -446, 'ん': -137, '・': -135, '主': -402, '京': -268, '区': -912, '午': 871, '国': -460, '大': 561, '委': 729, '市': -411, '日': -141, '理': 361, '生': -408, '県': -386, '都': -718};
  this.UW2__ = {'，': -829, '、': -829, '〇': 892, '｢': -645, '｣': 3145, 'あ': -538, 'い': 505, 'う': 134, 'お': -502, 'か': 1454, 'が': -856, 'く': -412, 'こ': 1141, 'さ': 878, 'ざ': 540, 'し': 1529, 'す': -675, 'せ': 300, 'そ': -1011, 'た': 188, 'だ': 1837, 'つ': -949, 'て': -291, 'で': -268, 'と': -981, 'ど': 1273, 'な': 1063, 'に': -1764, 'の': 130, 'は': -409, 'ひ': -1273, 'べ': 1261, 'ま': 600, 'も': -1263, 'や': -402, 'よ': 1639, 'り': -579, 'る': -694, 'れ': 571, 'を': -2516, 'ん': 2095, 'ア': -587, 'カ': 306, 'キ': 568, 'ッ': 831, '三': -758, '不': -2150, '世': -302, '中': -968, '主': -861, '事': 492, '人': -123, '会': 978, '保': 362, '入': 548, '初': -3025, '副': -1566, '北': -3414, '区': -422, '大': -1769, '天': -865, '太': -483, '子': -1519, '学': 760, '実': 1023, '小': -2009, '市': -813, '年': -1060, '強': 1067, '手': -1519, '揺': -1033, '政': 1522, '文': -1355, '新': -1682, '日': -1815, '明': -1462, '最': -630, '朝': -1843, '本': -1650, '東': -931, '果': -665, '次': -2378, '民': -180, '気': -1740, '理': 752, '発': 529, '目': -1584, '相': -242, '県': -1165, '立': -763, '第': 810, '米': 509, '自': -1353, '行': 838, '西': -744, '見': -3874, '調': 1010, '議': 1198, '込': 3041, '開': 1758, '間': -1257};
  this.UW3__ = {'1': -800, '，': 4889, '−': -1723, '、': 4889, '々': -2311, '〇': 5827, '｣': 2670, '〓': -3573, 'あ': -2696, 'い': 1006, 'う': 2342, 'え': 1983, 'お': -4864, 'か': -1163, 'が': 3271, 'く': 1004, 'け': 388, 'げ': 401, 'こ': -3552, 'ご': -3116, 'さ': -1058, 'し': -395, 'す': 584, 'せ': 3685, 'そ': -5228, 'た': 842, 'ち': -521, 'っ': -1444, 'つ': -1081, 'て': 6167, 'で': 2318, 'と': 1691, 'ど': -899, 'な': -2788, 'に': 2745, 'の': 4056, 'は': 4555, 'ひ': -2171, 'ふ': -1798, 'へ': 1199, 'ほ': -5516, 'ま': -4384, 'み': -120, 'め': 1205, 'も': 2323, 'や': -788, 'よ': -202, 'ら': 727, 'り': 649, 'る': 5905, 'れ': 2773, 'わ': -1207, 'を': 6620, 'ん': -518, 'ア': 551, 'グ': 1319, 'ス': 874, 'ッ': -1350, 'ト': 521, 'ム': 1109, 'ル': 1591, 'ロ': 2201, 'ン': 278, '・': -3794, '一': -1619, '下': -1759, '世': -2087, '両': 3815, '中': 653, '主': -758, '予': -1193, '二': 974, '人': 2742, '今': 792, '他': 1889, '以': -1368, '低': 811, '何': 4265, '作': -361, '保': -2439, '元': 4858, '党': 3593, '全': 1574, '公': -3030, '六': 755, '共': -1880, '円': 5807, '再': 3095, '分': 457, '初': 2475, '別': 1129, '前': 2286, '副': 4437, '力': 365, '動': -949, '務': -1872, '化': 1327, '北': -1038, '区': 4646, '千': -2309, '午': -783, '協': -1006, '口': 483, '右': 1233, '各': 3588, '合': -241, '同': 3906, '和': -837, '員': 4513, '国': 642, '型': 1389, '場': 1219, '外': -241, '妻': 2016, '学': -1356, '安': -423, '実': -1008, '家': 1078, '小': -513, '少': -3102, '州': 1155, '市': 3197, '平': -1804, '年': 2416, '広': -1030, '府': 1605, '度': 1452, '建': -2352, '当': -3885, '得': 1905, '思': -1291, '性': 1822, '戸': -488, '指': -3973, '政': -2013, '教': -1479, '数': 3222, '文': -1489, '新': 1764, '日': 2099, '旧': 5792, '昨': -661, '時': -1248, '曜': -951, '最': -937, '月': 4125, '期': 360, '李': 3094, '村': 364, '東': -805, '核': 5156, '森': 2438, '業': 484, '氏': 2613, '民': -1694, '決': -1073, '法': 1868, '海': -495, '無': 979, '物': 461, '特': -3850, '生': -273, '用': 914, '町': 1215, '的': 7313, '直': -1835, '省': 792, '県': 6293, '知': -1528, '私': 4231, '税': 401, '立': -960, '第': 1201, '米': 7767, '系': 3066, '約': 3663, '級': 1384, '統': -4229, '総': 1163, '線': 1255, '者': 6457, '能': 725, '自': -2869, '英': 785, '見': 1044, '調': -562, '財': -733, '費': 1777, '車': 1835, '軍': 1375, '込': -1504, '通': -1136, '選': -681, '郎': 1026, '郡': 4404, '部': 1200, '金': 2163, '長': 421, '開': -1432, '間': 1302, '関': -1282, '雨': 2009, '電': -1045, '非': 2066, '駅': 1620};
  this.UW4__ = {'，': 3930, '．': 3508, '―': -4841, '、': 3930, '。': 3508, '〇': 4999, '｢': 1895, '｣': 3798, '〓': -5156, 'あ': 4752, 'い': -3435, 'う': -640, 'え': -2514, 'お': 2405, 'か': 530, 'が': 6006, 'き': -4482, 'ぎ': -3821, 'く': -3788, 'け': -4376, 'げ': -4734, 'こ': 2255, 'ご': 1979, 'さ': 2864, 'し': -843, 'じ': -2506, 'す': -731, 'ず': 1251, 'せ': 181, 'そ': 4091, 'た': 5034, 'だ': 5408, 'ち': -3654, 'っ': -5882, 'つ': -1659, 'て': 3994, 'で': 7410, 'と': 4547, 'な': 5433, 'に': 6499, 'ぬ': 1853, 'ね': 1413, 'の': 7396, 'は': 8578, 'ば': 1940, 'ひ': 4249, 'び': -4134, 'ふ': 1345, 'へ': 6665, 'べ': -744, 'ほ': 1464, 'ま': 1051, 'み': -2082, 'む': -882, 'め': -5046, 'も': 4169, 'ゃ': -2666, 'や': 2795, 'ょ': -1544, 'よ': 3351, 'ら': -2922, 'り': -9726, 'る': -14896, 'れ': -2613, 'ろ': -4570, 'わ': -1783, 'を': 13150, 'ん': -2352, 'カ': 2145, 'コ': 1789, 'セ': 1287, 'ッ': -724, 'ト': -403, 'メ': -1635, 'ラ': -881, 'リ': -541, 'ル': -856, 'ン': -3637, '・': -4371, 'ー': -11870, '一': -2069, '中': 2210, '予': 782, '事': -190, '井': -1768, '人': 1036, '以': 544, '会': 950, '体': -1286, '作': 530, '側': 4292, '先': 601, '党': -2006, '共': -1212, '内': 584, '円': 788, '初': 1347, '前': 1623, '副': 3879, '力': -302, '動': -740, '務': -2715, '化': 776, '区': 4517, '協': 1013, '参': 1555, '合': -1834, '和': -681, '員': -910, '器': -851, '回': 1500, '国': -619, '園': -1200, '地': 866, '場': -1410, '塁': -2094, '士': -1413, '多': 1067, '大': 571, '子': -4802, '学': -1397, '定': -1057, '寺': -809, '小': 1910, '屋': -1328, '山': -1500, '島': -2056, '川': -2667, '市': 2771, '年': 374, '庁': -4556, '後': 456, '性': 553, '感': 916, '所': -1566, '支': 856, '改': 787, '政': 2182, '教': 704, '文': 522, '方': -856, '日': 1798, '時': 1829, '最': 845, '月': -9066, '木': -485, '来': -442, '校': -360, '業': -1043, '氏': 5388, '民': -2716, '気': -910, '沢': -939, '済': -543, '物': -735, '率': 672, '球': -1267, '生': -1286, '産': -1101, '田': -2900, '町': 1826, '的': 2586, '目': 922, '省': -3485, '県': 2997, '空': -867, '立': -2112, '第': 788, '米': 2937, '系': 786, '約': 2171, '経': 1146, '統': -1169, '総': 940, '線': -994, '署': 749, '者': 2145, '能': -730, '般': -852, '行': -792, '規': 792, '警': -1184, '議': -244, '谷': -1000, '賞': 730, '車': -1481, '軍': 1158, '輪': -1433, '込': -3370, '近': 929, '道': -1291, '選': 2596, '郎': -4866, '都': 1192, '野': -1100, '銀': -2213, '長': 357, '間': -2344, '院': -2297, '際': -2604, '電': -878, '領': -1659, '題': -792, '館': -1984, '首': 1749, '高': 2120};
  this.UW5__ = {'1': -514, '，': 465, '．': -299, 'E2': -32768, '］': -2762, '、': 465, '。': -299, '｢': 363, 'あ': 1655, 'い': 331, 'う': -503, 'え': 1199, 'お': 527, 'か': 647, 'が': -421, 'き': 1624, 'ぎ': 1971, 'く': 312, 'げ': -983, 'さ': -1537, 'し': -1371, 'す': -852, 'だ': -1186, 'ち': 1093, 'っ': 52, 'つ': 921, 'て': -18, 'で': -850, 'と': -127, 'ど': 1682, 'な': -787, 'に': -1224, 'の': -635, 'は': -578, 'べ': 1001, 'み': 502, 'め': 865, 'ゃ': 3350, 'ょ': 854, 'り': -208, 'る': 429, 'れ': 504, 'わ': 419, 'を': -1264, 'ん': 327, 'イ': 241, 'ル': 451, 'ン': -343, '中': -871, '京': 722, '会': -1153, '党': -654, '務': 3519, '区': -901, '告': 848, '員': 2104, '大': -1296, '学': -548, '定': 1785, '嵐': -1304, '市': -2991, '席': 921, '年': 1763, '思': 872, '所': -814, '挙': 1618, '新': -1682, '日': 218, '月': -4353, '査': 932, '格': 1356, '機': -1508, '氏': -1347, '田': 240, '町': -3912, '的': -3149, '相': 1319, '省': -1052, '県': -4003, '研': -997, '社': -278, '空': -813, '統': 1955, '者': -2233, '表': 663, '語': -1073, '議': 1219, '選': -1018, '郎': -368, '長': 786, '間': 1191, '題': 2368, '館': -689};
  this.UW6__ = {'1': -270, '，': 227, '．': 808, '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};

  return this;
};

util.inherits(TokenizerJa, Tokenizer);


/**
 * @param {string} str
 * @return {string}
 * @private
 */
TokenizerJa.prototype.ctype_ = function(str) {
  for (var i = 0, length = this.chartype_.length; i < length; i++) {
    if (str.match(this.chartype_[i][0])) {
      return this.chartype_[i][1];
    }
  }
  return 'O';
};


/**
 * @param {string} v
 * @return {number}
 * @private
 */
TokenizerJa.prototype.ts_ = function(v) {
  if (v) { return v; }
  return 0;
};


/**
 * Remove punctuations signs from tokens.
 *
 * @param {Array.<string>} tokens An array of tokens.
 * @return {Array.<string>} An array of tokens.
 * @private
 */
TokenizerJa.prototype.removePuncTokens = function(tokens) {
  return tokens
      .map(function(token) {
        return token.replace(/[＿－・，、；：！？．。（）［］｛｝｢｣＠＊＼／＆＃％｀＾＋＜＝＞｜～≪≫─＄＂_\-･,､;:!?.｡()[\]{}「」@*\/&#%`^+<=>|~«»$"\s]+/g, '');
      })
      .filter(function(token) {
        return token != '';
      });
};


/**
 * @param {string} text
 * @return {Array.<string>}
 */
TokenizerJa.prototype.tokenize = function(text) {
  if (text == null || text == undefined || text == '') {
    return [];
  }
  text = normalize(text);
  var result = [];
  var seg = ['B3', 'B2', 'B1'];
  var ctype = ['O', 'O', 'O'];
  var o = text.split('');
  var i;
  var length;
  for (i = 0, length = o.length; i < length; ++i) {
    seg.push(o[i]);
    ctype.push(this.ctype_(o[i]));
  }
  seg.push('E1');
  seg.push('E2');
  seg.push('E3');
  ctype.push('O');
  ctype.push('O');
  ctype.push('O');
  var word = seg[3];
  var p1 = 'U';
  var p2 = 'U';
  var p3 = 'U';
  for (i = 4, length = seg.length - 3; i < length; ++i) {
    var score = this.BIAS__;
    var w1 = seg[i - 3];
    var w2 = seg[i - 2];
    var w3 = seg[i - 1];
    var w4 = seg[i];
    var w5 = seg[i + 1];
    var w6 = seg[i + 2];
    var c1 = ctype[i - 3];
    var c2 = ctype[i - 2];
    var c3 = ctype[i - 1];
    var c4 = ctype[i];
    var c5 = ctype[i + 1];
    var c6 = ctype[i + 2];
    score += this.ts_(this.UP1__[p1]);
    score += this.ts_(this.UP2__[p2]);
    score += this.ts_(this.UP3__[p3]);
    score += this.ts_(this.BP1__[p1 + p2]);
    score += this.ts_(this.BP2__[p2 + p3]);
    score += this.ts_(this.UW1__[w1]);
    score += this.ts_(this.UW2__[w2]);
    score += this.ts_(this.UW3__[w3]);
    score += this.ts_(this.UW4__[w4]);
    score += this.ts_(this.UW5__[w5]);
    score += this.ts_(this.UW6__[w6]);
    score += this.ts_(this.BW1__[w2 + w3]);
    score += this.ts_(this.BW2__[w3 + w4]);
    score += this.ts_(this.BW3__[w4 + w5]);
    score += this.ts_(this.TW1__[w1 + w2 + w3]);
    score += this.ts_(this.TW2__[w2 + w3 + w4]);
    score += this.ts_(this.TW3__[w3 + w4 + w5]);
    score += this.ts_(this.TW4__[w4 + w5 + w6]);
    score += this.ts_(this.UC1__[c1]);
    score += this.ts_(this.UC2__[c2]);
    score += this.ts_(this.UC3__[c3]);
    score += this.ts_(this.UC4__[c4]);
    score += this.ts_(this.UC5__[c5]);
    score += this.ts_(this.UC6__[c6]);
    score += this.ts_(this.BC1__[c2 + c3]);
    score += this.ts_(this.BC2__[c3 + c4]);
    score += this.ts_(this.BC3__[c4 + c5]);
    score += this.ts_(this.TC1__[c1 + c2 + c3]);
    score += this.ts_(this.TC2__[c2 + c3 + c4]);
    score += this.ts_(this.TC3__[c3 + c4 + c5]);
    score += this.ts_(this.TC4__[c4 + c5 + c6]);
    //score += this.ts_(this.TC5__[c4 + c5 + c6]);
    score += this.ts_(this.UQ1__[p1 + c1]);
    score += this.ts_(this.UQ2__[p2 + c2]);
    score += this.ts_(this.UQ3__[p3 + c3]);
    score += this.ts_(this.BQ1__[p2 + c2 + c3]);
    score += this.ts_(this.BQ2__[p2 + c3 + c4]);
    score += this.ts_(this.BQ3__[p3 + c2 + c3]);
    score += this.ts_(this.BQ4__[p3 + c3 + c4]);
    score += this.ts_(this.TQ1__[p2 + c1 + c2 + c3]);
    score += this.ts_(this.TQ2__[p2 + c2 + c3 + c4]);
    score += this.ts_(this.TQ3__[p3 + c1 + c2 + c3]);
    score += this.ts_(this.TQ4__[p3 + c2 + c3 + c4]);
    var p = 'O';
    if (score > 0) {
      result.push(word);
      word = '';
      p = 'B';
    }
    p1 = p2;
    p2 = p3;
    p3 = p;
    word += seg[i];
  }
  result.push(word);

  result = this.removePuncTokens(result);

  return result;
};

module.exports = TokenizerJa;