if( $wgDisableSearchUpdate || !$this->mId ) {
return false;
}
+ $fname = "SearchUpdate::doUpdate";
+ wfProfileIn( $fname );
+
require_once( 'SearchEngine.php' );
$lc = SearchEngine::legalSearchChars() . "&#;";
$db =& wfGetDB( DB_MASTER );
$db->strencode( Title::indexTitle( $this->mNamespace, $this->mTitle ) ) .
"' WHERE si_page={$this->mId}";
$db->query( $sql, "SearchUpdate::doUpdate" );
+ wfProfileOut( $fname );
return;
}
# Language-specific strip/conversion
$text = $wgLang->stripForSearch( $this->mText );
+ wfProfileIn( "$fname-regexps" );
$text = preg_replace( "/<\\/?\\s*[A-Za-z][A-Za-z0-9]*\\s*([^>]*?)>/",
" ", strtolower( " " . $text /*$this->mText*/ . " " ) ); # Strip HTML markup
$text = preg_replace( "/(^|\\n)\\s*==\\s+([^\\n]+)\\s+==\\s/sD",
$text = preg_replace( "/[^{$lc}]+/", " ", $text );
# Handle 's, s'
- $text = preg_replace( "/([{$lc}]+)'s /", "\\1 \\1's ", $text );
- $text = preg_replace( "/([{$lc}]+)s' /", "\\1s ", $text );
+ #
+ # $text = preg_replace( "/([{$lc}]+)'s /", "\\1 \\1's ", $text );
+ # $text = preg_replace( "/([{$lc}]+)s' /", "\\1s ", $text );
+ #
+ # These tail-anchored regexps are insanely slow. The worst case comes
+ # when Japanese or Chinese text (ie, no word spacing) is written on
+ # a wiki configured for Western UTF-8 mode. The Unicode characters are
+ # expanded to hex codes and the "words" are very long paragraph-length
+ # monstrosities. On a large page the above regexps may take over 20
+ # seconds *each* on a 1GHz-level processor.
+ #
+ # Following are reversed versions which are consistently fast
+ # (about 3 milliseconds on 1GHz-level processor).
+ #
+ $text = strrev( preg_replace( "/ s'([{$lc}]+)/", " s'\\1 \\1", strrev( $text ) ) );
+ $text = strrev( preg_replace( "/ 's([{$lc}]+)/", " s\\1", strrev( $text ) ) );
# Strip wiki '' and '''
$text = preg_replace( "/''[']*/", " ", $text );
+ wfProfileOut( "$fname-regexps" );
$sql = "REPLACE INTO $searchindex (si_page,si_title,si_text) VALUES ({$this->mId},'" .
$db->strencode( Title::indexTitle( $this->mNamespace, $this->mTitle ) ) . "','" .
$db->strencode( $text ) . "')";
$db->query( $sql, "SearchUpdate::doUpdate" );
+ wfProfileOut( $fname );
}
}