<?php
-require_once( "LanguageUtf8.php" );
require_once( "LanguageZh_cn.php");
require_once( "LanguageZh_tw.php");
-require_once( "ZhConversion.php");
+require_once( "LanguageZh_sg.php");
+require_once( "LanguageZh_hk.php");
+
+/*
+ hook to refresh the cache of conversion tables when
+ MediaWiki:zhconversiontable* is updated
+*/
+function zhOnArticleSaveComplete($article, $user, $text, $summary, $isminor, $iswatch, $section) {
+ $titleobj = $article->getTitle();
+ if($titleobj->getNamespace() == NS_MEDIAWIKI) {
+ global $wgContLang; // should be an LanguageZh.
+ if(get_class($wgContLang) != 'languagezh')
+ return true;
+
+ $title = $titleobj->getDBkey();
+ $t = explode('/', $title, 3);
+ $c = count($t);
+ if( $c > 1 && $t[0] == 'Zhconversiontable' ) {
+ if(in_array($t[1], array('zh-cn', 'zh-tw', 'zh-sg', 'zh-hk'))) {
+ $wgContLang->reloadTables();
+ }
+ }
+ }
+ return true;
+}
+
+$wgHooks['ArticleSaveComplete'][] = 'zhOnArticleSaveComplete';
/* class that handles both Traditional and Simplified Chinese
right now it only distinguish zh_cn and zh_tw (actuall, zh_cn and
non-zh_cn), will add support for zh_sg, zh_hk, etc, later.
*/
-class LanguageZh extends LanguageUtf8 {
-
- var $mZhLang=false, $mZhLanguageCode=false;
-
- function LanguageZh() {
- $this->mZhLanguageCode = $this->getPreferredVariant();
- if($this->mZhLanguageCode == "cn") {
- $this->mZhLang = new LanguageZh_cn();
- }
- else {
- $this->mZhLang = new LanguageZh_tw();
- }
- }
-
- /*
- get preferred language variants. eventually this will check the
- user's preference setting as well, once the language option in
- the setting pages is finalized.
- */
- function getPreferredVariant() {
- global $wgUser;
-
- if($this->mZhLanguageCode)
- return $this->mZhLanguageCode;
-
- // get language variant preference for logged in users
- if($wgUser->getID()!=0) {
- $this->mZhLanguageCode = $wgUser->getOption('variant');
- }
- else {
- // see if some zh- variant is set in the http header,
- $this->mZhLanguageCode="zh-cn";
- $header = str_replace( '_', '-', strtolower($_SERVER["HTTP_ACCEPT_LANGUAGE"]));
- $zh = strstr($header, 'zh-');
- if($zh) {
- $this->mZhLanguageCode = substr($zh,0,5);
- }
- }
- return $this->mZhLanguageCode;
- }
-
-
- /* the Simplified/Traditional conversion stuff */
+class LanguageZh extends LanguageZh_cn {
+
+ var $mZhLanguageCode=false;
+ var $mTables=false; //the mapping tables
+ var $mTablesLoaded = false;
+ var $mCacheKey;
+ var $mDoTitleConvert = true, $mDoContentConvert = true;
- function simp2trad($text) {
- global $wgZhSimp2Trad;
- return strtr($text, $wgZhSimp2Trad);
+ function LanguageZh() {
+ global $wgDBname;
+ $this->mCacheKey = $wgDBname . ":zhtables";
}
- function trad2simp($text) {
- global $wgZhTrad2Simp;
- return strtr($text, $wgZhTrad2Simp);
+ // a write lock
+ function lockCache() {
+ global $wgMemc;
+ $success = false;
+ for($i=0; $i<30; $i++) {
+ if($success = $wgMemc->add($this->mCacheKey . "lock", 1, 10))
+ break;
+ sleep(1);
+ }
+ return $success;
}
-
- function autoConvert($text) {
- if($this->getPreferredVariant() == "zh-cn") {
- return $this->trad2simp($text);
- }
- else {
- return $this->simp2trad($text);
- }
- }
-
- function getVariants() {
- return array("zh-cn", "zh-tw");
- }
+ function unlockCache() {
+ global $wgMemc;
+ $wgMemc->delete($this->mCacheKey . "lock");
+ }
- /* these just calls the method of the corresponding class */
-
- function getDefaultUserOptions () {
- return $this->mZhLang->getDefaultUserOptions();
- }
+ function updateTable($code, $table) {
+ global $wgMemc;
+ if(!$this->mTablesLoaded)
+ $this->loadTables();
- function getBookstoreList () {
- return $this->mZhLang->getBookstoreList() ;
+ $this->mTables[$code] = array_merge($this->mTables[$code], $table);
+ if($this->lockCache()) {
+ $wgMemc->delete($this->mCacheKey);
+ $wgMemc->set($this->mCacheKey, $this->mTables, 43200);
+ $this->unlockCache();
+ }
}
- function getNamespaces() {
- return $this->mZhLang->getNamespaces();
+ function reloadTables() {
+ if($this->mTables)
+ unset($this->mTables);
+ $this->mTablesLoaded = false;
+ $this->loadTables(false);
}
- function getNsText( $index ) {
- return $this->mZhLang->getNsText($index);
- }
+ // load conversion tables either from the cache or the disk
+ function loadTables($fromcache=true) {
+ global $wgMemc;
+ if( $this->mTablesLoaded )
+ return;
+ $this->mTablesLoaded = true;
+ if($fromcache) {
+ $this->mTables = $wgMemc->get( $this->mCacheKey );
+ if( !empty( $this->mTables ) ) //all done
+ return;
+ }
+ // not in cache, or we need a fresh reload.
+ // we will first load the tables from file
+ // then update them using things in MediaWiki:Zhconversiontable/*
+ global $wgMessageCache;
+ require( "includes/ZhConversion.php" );
+ $this->mTables = array();
+ $this->mTables['zh-cn'] = $zh2CN;
+ $this->mTables['zh-tw'] = $zh2TW;
+ $this->mTables['zh-sg'] = $zh2SG;
+ $this->mTables['zh-hk'] = $zh2HK;
- function getNsIndex( $text ) {
- return $this->mZhLang->getNsIndex($text);
+ $cached = $this->parseCachedTable('zh-cn');
+ $this->mTables['zh-cn'] = array_merge($this->mTables['zh-cn'], $cached);
+
+ $cached = $this->parseCachedTable('zh-tw');
+ $this->mTables['zh-tw'] = array_merge($this->mTables['zh-tw'], $cached);
+
+ $cached = $this->parseCachedTable('zh-sg');
+ $this->mTables['zh-sg'] = array_merge($this->mTables['zh-cn'], $this->mTables['zh-sg'], $cached);
+
+ $cached = $this->parseCachedTable('zh-hk');
+ $this->mTables['zh-hk'] = array_merge($this->mTables['zh-tw'], $this->mTables['zh-hk'], $cached);
+ if($this->lockCache()) {
+ $wgMemc->set($this->mCacheKey, $this->mTables, 43200);
+ $this->unlockCache();
+ }
}
+
+
+ /*
+ parse the conversion table stored in the cache
+
+ the tables should be in blocks of the following form:
+
+ -{
+ word => word ;
+ word => word ;
+ ...
+ }-
+
+ to make the tables more manageable, subpages are allowed
+ and will be parsed recursively if $recursive=true
+
+ */
+ function parseCachedTable($code, $subpage='', $recursive=true) {
+ global $wgMessageCache;
+ static $parsed = array();
+
+ if(!is_object($wgMessageCache))
+ return array();
+
+ $key = 'zhconversiontable/'.$code;
+ if($subpage)
+ $key .= '/' . $subpage;
+
+ if(array_key_exists($key, $parsed))
+ return array();
+
+
+ $txt = $wgMessageCache->get( $key, true, true, true );
+
+ // get all subpage links of the form
+ // [[MediaWiki:Zhconversiontable/zh-xx/...|...]]
+ $linkhead = $this->getNsText(NS_MEDIAWIKI) . ':Zhconversiontable';
+ $subs = explode('[[', $txt);
+ $sublinks = array();
+ foreach( $subs as $sub ) {
+ $link = explode(']]', $sub, 2);
+ if(count($link) != 2)
+ continue;
+ $b = explode('|', $link[0]);
+ $b = explode('/', trim($b[0]), 3);
+ if(count($b)==3)
+ $sublink = $b[2];
+ else
+ $sublink = '';
+
+ if($b[0] == $linkhead && $b[1] == $code) {
+ $sublinks[] = $sublink;
+ }
+ }
- function getQuickbarSettings() {
- return $this->mZhLang->getQuickbarSettings();
+
+ // parse the mappings in this page
+ $blocks = explode('-{', $txt);
+ array_shift($blocks);
+ $ret = array();
+ foreach($blocks as $block) {
+ $mappings = explode('}-', $block, 2);
+ $stripped = str_replace(array("'", '"', '*','#'), '', $mappings[0]);
+ $table = explode( ';', $stripped );
+ foreach( $table as $t ) {
+ $m = explode( '=>', $t );
+ if( count( $m ) != 2)
+ continue;
+ // trim any trailling comments starting with '//'
+ $tt = explode('//', $m[1], 2);
+ $ret[trim($m[0])] = trim($tt[0]);
+ }
+ }
+ $parsed[$key] = true;
+
+
+ // recursively parse the subpages
+ if($recursive) {
+ foreach($sublinks as $link) {
+ $s = $this->parseCachedTable($code, $link, $recursive);
+ $ret = array_merge($ret, $s);
+ }
+ }
+ return $ret;
}
- function getSkinNames() {
- return $this->mZhLang->getSkinNames();
+ /*
+ get preferred language variants.
+ */
+ function getPreferredVariant() {
+ global $wgUser, $wgRequest;
+
+ if($this->mZhLanguageCode)
+ return $this->mZhLanguageCode;
+
+ // see if the preference is set in the request
+ $zhreq = $wgRequest->getText( 'variant' );
+ if( in_array( $zhreq, $this->getVariants() ) ) {
+ $this->mZhLanguageCode = $zhreq;
+ return $zhreq;
+ }
+
+ // get language variant preference from logged in users
+ if( $wgUser->isLoggedIn() ) {
+ $this->mZhLanguageCode = $wgUser->getOption('variant');
+ }
+
+ if( !$this->mZhLanguageCode ) {
+ // see if some zh- variant is set in the http header,
+ $this->mZhLanguageCode="zh";
+ if(array_key_exists('HTTP_ACCEPT_LANGUAGE', $_SERVER)) {
+ $header = str_replace( '_', '-', strtolower($_SERVER["HTTP_ACCEPT_LANGUAGE"]));
+ $zh = strstr($header, 'zh-');
+ if($zh) {
+ $this->mZhLanguageCode = substr($zh,0,5);
+ }
+ }
+ }
+ return $this->mZhLanguageCode;
+ }
+
+ # this should give much better diff info
+ function segmentForDiff( $text ) {
+ return preg_replace(
+ "/([\\xc0-\\xff][\\x80-\\xbf]*)/e",
+ "' ' .\"$1\"", $text);
}
- function date( $ts, $adj = false )
- {
- return $this->mZhLang->date($ts,$adj);
+ function unsegmentForDiff( $text ) {
+ return preg_replace(
+ "/ ([\\xc0-\\xff][\\x80-\\xbf]*)/e",
+ "\"$1\"", $text);
}
- function timeanddate( $ts, $adj = false )
- {
- return $this->mZhLang->timeanddate($ts, $adj);
+ function autoConvert($text, $toVariant=false) {
+ $fname="LanguageZh::autoConvert";
+ wfProfileIn( $fname );
+
+ if(!$this->mTablesLoaded)
+ $this->loadTables();
+
+ if(!$toVariant)
+ $toVariant = $this->getPreferredVariant();
+ $ret = '';
+ switch( $toVariant ) {
+ case 'zh-cn': $ret = strtr($text, $this->mTables['zh-cn']);break;
+ case 'zh-tw': $ret = strtr($text, $this->mTables['zh-tw']);break;
+ case 'zh-sg': $ret = strtr($text, $this->mTables['zh-sg']);break;
+ case 'zh-hk': $ret = strtr($text, $this->mTables['zh-hk']);break;
+ default: $ret = $text;
+ }
+ wfProfileOut( $fname );
+ return $ret;
}
+
+ function autoConvertToAllVariants($text) {
+ $fname="LanguageZh::autoConvertToAllVariants";
+ wfProfileIn( $fname );
+ if( !$this->mTablesLoaded )
+ $this->loadTables();
- function getValidSpecialPages()
- {
- return $this->mZhLang->getValidSpecialPages();
+ $ret = array();
+ $ret['zh-cn'] = strtr($text, $this->mTables['zh-cn']);
+ $ret['zh-tw'] = strtr($text, $this->mTables['zh-tw']);
+ $ret['zh-sg'] = strtr(strtr($text, $this->mTables['zh-cn']), $this->mTables['zh-sg']);
+ $ret['zh-hk'] = strtr(strtr($text, $this->mTables['zh-tw']), $this->mTables['zh-hk']);
+ wfProfileOut( $fname );
+ return $ret;
}
+
+ # convert text to different variants of a language. the automatic
+ # conversion is done in autoConvert(). here we parse the text
+ # marked with -{}-, which specifies special conversions of the
+ # text that can not be accomplished in autoConvert()
+ #
+ # syntax of the markup:
+ # -{code1:text1;code2:text2;...}- or
+ # -{text}- in which case no conversion should take place for text
+ function convert( $text , $isTitle=false) {
+ global $wgDisableLangConversion;
+ if($wgDisableLangConversion)
+ return $text;
+
+ $mw =& MagicWord::get( MAG_NOTITLECONVERT );
+ if( $mw->matchAndRemove( $text ) )
+ $this->mDoTitleConvert = false;
+
+ $mw =& MagicWord::get( MAG_NOCONTENTCONVERT );
+ if( $mw->matchAndRemove( $text ) ) {
+ $this->mDoContentConvert = false;
+ }
+
+ // no conversion if redirecting
+ $mw =& MagicWord::get( MAG_REDIRECT );
+ if( $mw->matchStart( $text ))
+ return $text;
- function getSysopSpecialPages()
- {
- return $this->mZhLang->getSysopSpecialPages();
+ if( $isTitle ) {
+ if( !$this->mDoTitleConvert )
+ return $text;
+
+ global $wgRequest;
+ $isredir = $wgRequest->getText( 'redirect', 'yes' );
+ $action = $wgRequest->getText( 'action' );
+ if ( $isredir == 'no' || $action == 'edit' ) {
+ return $text;
+ }
+ else {
+ return $this->autoConvert($text);
+ }
+ }
+
+ if( !$this->mDoContentConvert )
+ return $text;
+
+ $plang = $this->getPreferredVariant();
+ $fallback = $this->getVariantFallback($plang);
+
+ $tarray = explode("-{", $text);
+ $tfirst = array_shift($tarray);
+ $text = $this->autoConvert($tfirst);
+ foreach($tarray as $txt) {
+ $marked = explode("}-", $txt);
+
+ $choice = explode(";", $marked{0});
+ if(!array_key_exists(1, $choice)) {
+ /* a single choice */
+ $text .= $choice{0};
+ } else {
+ $choice1=false;
+ $choice2=false;
+ foreach($choice as $c) {
+ $v = explode(":", $c);
+ if(!array_key_exists(1, $v)) {
+ //syntax error in the markup, give up
+ break;
+ }
+ $code = trim($v{0});
+ $content = trim($v{1});
+ if($code == $plang) {
+ $choice1 = $content;
+ break;
+ }
+ if($code == $fallback)
+ $choice2 = $content;
+ }
+ if ( $choice1 )
+ $text .= $choice1;
+ elseif ( $choice2 )
+ $text .= $choice2;
+ else
+ $text .= $marked{0};
+ }
+ if(array_key_exists(1, $marked))
+ $text .= $this->autoConvert($marked{1});
+ }
+
+ return $text;
}
- function getDeveloperSpecialPages()
- {
- return $this->mZhLang->getDeveloperSpecialPages();
+ function getVariants() {
+ return array("zh", "zh-cn", "zh-tw", "zh-sg", "zh-hk");
}
- function getMessage( $key )
- {
- return $this->mZhLang->getMessage($key);
+ function getVariantFallback($v) {
+ switch ($v) {
+ case 'zh': return 'zh-cn'; break;
+ case 'zh-cn': return 'zh-sg'; break;
+ case 'zh-sg': return 'zh-cn'; break;
+ case 'zh-tw': return 'zh-hk'; break;
+ case 'zh-hk': return 'zh-tw'; break;
+ }
+ return false;
}
+ // word segmentation
function stripForSearch( $string ) {
- return $this->mZhLang->stripForSearch($string);
+ $fname="LanguageZh::stripForSearch";
+ wfProfileIn( $fname );
+
+ // eventually this should be a word segmentation
+ // for now just treat each character as a word
+ $t = preg_replace(
+ "/([\\xc0-\\xff][\\x80-\\xbf]*)/e",
+ "' ' .\"$1\"", $string);
+
+ //always convert to zh-cn before indexing. it should be
+ //better to use zh-cn for search, since conversion from
+ //Traditional to Simplified is less ambiguous than the
+ //other way around
+
+ $t = $this->autoConvert($t, 'zh-cn');
+ $t = LanguageUtf8::stripForSearch( $t );
+ wfProfileOut( $fname );
+ return $t;
+
}
-
-}
+ function convertForSearchResult( $termsArray ) {
+ $terms = implode( '|', $termsArray );
+ $terms = implode( '|', $this->autoConvertToAllVariants( $terms ) );
+ $ret = array_unique( explode('|', $terms) );
+ return $ret;
+ }
+ function findVariantLink( &$link, &$nt ) {
+ static $count=0; //used to limit this operation
+ static $cache=array();
+ global $wgDisableLangConversion;
+ $pref = $this->getPreferredVariant();
+ if( $count > 50 )
+ return;
+ $count++;
+ $variants = $this->autoConvertToAllVariants($link);
+ if($variants == false) //give up
+ return;
+ foreach( $variants as $v ) {
+ if(isset($cache[$v]))
+ continue;
+ $cache[$v] = 1;
+ $varnt = Title::newFromText( $v );
+ if( $varnt && $varnt->getArticleID() > 0 ) {
+ $nt = $varnt;
+ if( !$wgDisableLangConversion && $pref != 'zh' )
+ $link = $v;
+ break;
+ }
+ }
+ }
+ function getExtraHashOptions() {
+ global $wgUser;
+ $variant = $this->getPreferredVariant();
+ return '!' . $variant ;
+ }
+
+}
?>