languages/classes/LanguageJa.php

   1 <?php
   2 /**
   3  * Japanese (日本語) specific code.
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License along
  16  * with this program; if not, write to the Free Software Foundation, Inc.,
  17  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  18  * http://www.gnu.org/copyleft/gpl.html
  19  *
  20  * @file
  21  * @ingroup Language
  22  */
  23
  24 /**
  25  * Japanese (日本語)
  26  *
  27  * @ingroup Language
  28  */
  29 class LanguageJa extends Language {
  30
  31         /**
  32          * @param $string string
  33          * @return string
  34          */
  35         function segmentByWord( $string ) {
  36                 // Strip known punctuation ?
  37                 // $s = preg_replace( '/\xe3\x80[\x80-\xbf]/', '', $s ); # U3000-303f
  38
  39                 // Space strings of like hiragana/katakana/kanji
  40                 $hiragana = '(?:\xe3(?:\x81[\x80-\xbf]|\x82[\x80-\x9f]))'; # U3040-309f
  41                 $katakana = '(?:\xe3(?:\x82[\xa0-\xbf]|\x83[\x80-\xbf]))'; # U30a0-30ff
  42                 $kanji = '(?:\xe3[\x88-\xbf][\x80-\xbf]'
  43                         . '|[\xe4-\xe8][\x80-\xbf]{2}'
  44                         . '|\xe9[\x80-\xa5][\x80-\xbf]'
  45                         . '|\xe9\xa6[\x80-\x99])';
  46                         # U3200-9999 = \xe3\x88\x80-\xe9\xa6\x99
  47                 $reg = "/({$hiragana}+|{$katakana}+|{$kanji}+)/";
  48                 $s = self::insertSpace( $string, $reg );
  49                 return $s;
  50         }
  51
  52         /**
  53          * Italic is not appropriate for Japanese script
  54          * Unfortunately most browsers do not recognise this, and render <em> as italic
  55          *
  56          * @param $text string
  57          * @return string
  58          */
  59         function emphasize( $text ) {
  60                 return $text;
  61         }
  62 }