languages/classes/LanguageJa.php

   1 <?php
   2
   3 /**
   4  * Japanese (日本語)
   5  *
   6  * @ingroup Language
   7  */
   8 class LanguageJa extends Language {
   9         function segmentByWord( $string ) {
  10                 // Strip known punctuation ?
  11                 // $s = preg_replace( '/\xe3\x80[\x80-\xbf]/', '', $s ); # U3000-303f
  12
  13                 // Space strings of like hiragana/katakana/kanji
  14                 $hiragana = '(?:\xe3(?:\x81[\x80-\xbf]|\x82[\x80-\x9f]))'; # U3040-309f
  15                 $katakana = '(?:\xe3(?:\x82[\xa0-\xbf]|\x83[\x80-\xbf]))'; # U30a0-30ff
  16                 $kanji = '(?:\xe3[\x88-\xbf][\x80-\xbf]'
  17                         . '|[\xe4-\xe8][\x80-\xbf]{2}'
  18                         . '|\xe9[\x80-\xa5][\x80-\xbf]'
  19                         . '|\xe9\xa6[\x80-\x99])';
  20                         # U3200-9999 = \xe3\x88\x80-\xe9\xa6\x99
  21                 $reg = "/({$hiragana}+|{$katakana}+|{$kanji}+)/";
  22                 $s = self::insertSpace( $string, $reg );
  23                 return $s;
  24         }
  25
  26         function normalizeForSearch( $string ) {
  27                 // Double-width roman characters
  28                 $s = self::convertDoubleWidth( $string );
  29
  30                 # Do general case folding and UTF-8 armoring
  31                 return parent::normalizeForSearch( $s );
  32         }
  33
  34         # Italic is not appropriate for Japanese script
  35         # Unfortunately most browsers do not recognise this, and render <em> as italic
  36         function emphasize( $text ) {
  37                 return $text;
  38         }
  39 }