1 files changed, 42 insertions, 0 deletions
diff --git a/languages/classes/LanguageJa.php b/languages/classes/LanguageJa.php
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+++ b/languages/classes/LanguageJa.php
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+<?php
+/**
+ * Japanese (日本語)
+ *
+ * @package MediaWiki
+ * @subpackage Language
+ */
+class LanguageJa extends Language {
+	function stripForSearch( $string ) {
+		# MySQL fulltext index doesn't grok utf-8, so we
+		# need to fold cases and convert to hex
+		$s = $string;
+
+		# Strip known punctuation ?
+		#$s = preg_replace( '/\xe3\x80[\x80-\xbf]/', '', $s ); # U3000-303f
+
+		# Space strings of like hiragana/katakana/kanji
+		$hiragana = '(?:\xe3(?:\x81[\x80-\xbf]|\x82[\x80-\x9f]))'; # U3040-309f
+		$katakana = '(?:\xe3(?:\x82[\xa0-\xbf]|\x83[\x80-\xbf]))'; # U30a0-30ff
+		$kanji = '(?:\xe3[\x88-\xbf][\x80-\xbf]'
+			. '|[\xe4-\xe8][\x80-\xbf]{2}'
+			. '|\xe9[\x80-\xa5][\x80-\xbf]'
+			. '|\xe9\xa6[\x80-\x99])';
+			# U3200-9999 = \xe3\x88\x80-\xe9\xa6\x99
+		$s = preg_replace( "/({$hiragana}+|{$katakana}+|{$kanji}+)/", ' $1 ', $s );
+
+		# Double-width roman characters: ff00-ff5f ~= 0020-007f
+		$s = preg_replace( '/\xef\xbc([\x80-\xbf])/e', 'chr((ord("$1") & 0x3f) + 0x20)', $s );
+		$s = preg_replace( '/\xef\xbd([\x80-\x99])/e', 'chr((ord("$1") & 0x3f) + 0x60)', $s );
+
+		# Do general case folding and UTF-8 armoring
+		return parent::stripForSearch( $s );
+	}
+
+	# Italic is not appropriate for Japanese script
+	# Unfortunately most browsers do not recognise this, and render <em> as italic
+	function emphasize( $text ) {
+		return $text;
+	}
+}
+
+?>