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Parser.php

Authored By
bzimport
Nov 21 2014, 8:16 PM
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94 KB
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Parser.php

<?php
/**
* File for Parser and related classes
*
* @package MediaWiki
*/
require_once( 'Sanitizer.php' );
/**
* Update this version number when the ParserOutput format
* changes in an incompatible way, so the parser cache
* can automatically discard old data.
*/
define( 'MW_PARSER_VERSION', '1.4.0' );
/**
* Variable substitution O(N^2) attack
*
* Without countermeasures, it would be possible to attack the parser by saving
* a page filled with a large number of inclusions of large pages. The size of
* the generated page would be proportional to the square of the input size.
* Hence, we limit the number of inclusions of any given page, thus bringing any
* attack back to O(N).
*/
define( 'MAX_INCLUDE_REPEAT', 100 );
define( 'MAX_INCLUDE_SIZE', 1000000 ); // 1 Million
define( 'RLH_FOR_UPDATE', 1 );
# Allowed values for $mOutputType
define( 'OT_HTML', 1 );
define( 'OT_WIKI', 2 );
define( 'OT_MSG' , 3 );
# string parameter for extractTags which will cause it
# to strip HTML comments in addition to regular
# <XML>-style tags. This should not be anything we
# may want to use in wikisyntax
define( 'STRIP_COMMENTS', 'HTMLCommentStrip' );
# prefix for escaping, used in two functions at least
define( 'UNIQ_PREFIX', 'NaodW29');
# Constants needed for external link processing
define( 'URL_PROTOCOLS', 'http|https|ftp|irc|gopher|news|mailto' );
define( 'HTTP_PROTOCOLS', 'http|https' );
# Everything except bracket, space, or control characters
define( 'EXT_LINK_URL_CLASS', '[^]<>"\\x00-\\x20\\x7F]' );
# Including space
define( 'EXT_LINK_TEXT_CLASS', '[^\]\\x00-\\x1F\\x7F]' );
define( 'EXT_IMAGE_FNAME_CLASS', '[A-Za-z0-9_.,~%\\-+&;#*?!=()@\\x80-\\xFF]' );
define( 'EXT_IMAGE_EXTENSIONS', 'gif|png|jpg|jpeg' );
define( 'EXT_LINK_BRACKETED', '/\[(\b('.URL_PROTOCOLS.'):'.EXT_LINK_URL_CLASS.'+) *('.EXT_LINK_TEXT_CLASS.'*?)\]/S' );
define( 'EXT_IMAGE_REGEX',
'/^('.HTTP_PROTOCOLS.':)'. # Protocol
'('.EXT_LINK_URL_CLASS.'+)\\/'. # Hostname and path
'('.EXT_IMAGE_FNAME_CLASS.'+)\\.((?i)'.EXT_IMAGE_EXTENSIONS.')$/S' # Filename
);
/**
* PHP Parser
*
* Processes wiki markup
*
* <pre>
* There are three main entry points into the Parser class:
* parse()
* produces HTML output
* preSaveTransform().
* produces altered wiki markup.
* transformMsg()
* performs brace substitution on MediaWiki messages
*
* Globals used:
* objects: $wgLang, $wgDateFormatter, $wgLinkCache
*
* NOT $wgArticle, $wgUser or $wgTitle. Keep them away!
*
* settings:
* $wgUseTex*, $wgUseDynamicDates*, $wgInterwikiMagic*,
* $wgNamespacesWithSubpages, $wgAllowExternalImages*,
* $wgLocaltimezone
*
* * only within ParserOptions
* </pre>
*
* @package MediaWiki
*/
class Parser
{
/**#@+
* @access private
*/
# Persistent:
var $mTagHooks;
# Cleared with clearState():
var $mOutput, $mAutonumber, $mDTopen, $mStripState = array();
var $mVariables, $mIncludeCount, $mArgStack, $mLastSection, $mInPre;
# Temporary:
var $mOptions, $mTitle, $mOutputType,
$mTemplates, // cache of already loaded templates, avoids
// multiple SQL queries for the same string
$mTemplatePath; // stores an unsorted hash of all the templates already loaded
// in this path. Used for loop detection.
/**#@-*/
/**
* Constructor
*
* @access public
*/
function Parser() {
$this->mTemplates = array();
$this->mTemplatePath = array();
$this->mTagHooks = array();
$this->clearState();
}
/**
* Clear Parser state
*
* @access private
*/
function clearState() {
$this->mOutput = new ParserOutput;
$this->mAutonumber = 0;
$this->mLastSection = '';
$this->mDTopen = false;
$this->mVariables = false;
$this->mIncludeCount = array();
$this->mStripState = array();
$this->mArgStack = array();
$this->mInPre = false;
}
/**
* First pass--just handle <nowiki> sections, pass the rest off
* to internalParse() which does all the real work.
*
* @access private
* @param string $text Text we want to parse
* @param Title &$title A title object
* @param array $options
* @param boolean $linestart
* @param boolean $clearState
* @return ParserOutput a ParserOutput
*/
function parse( $text, &$title, $options, $linestart = true, $clearState = true ) {
global $wgUseTidy, $wgContLang;
$fname = 'Parser::parse';
wfProfileIn( $fname );
if ( $clearState ) {
$this->clearState();
}
$this->mOptions = $options;
$this->mTitle =& $title;
$this->mOutputType = OT_HTML;
$stripState = NULL;
global $fnord; $fnord = 1;
//$text = $this->strip( $text, $this->mStripState );
// VOODOO MAGIC FIX! Sometimes the above segfaults in PHP5.
$x =& $this->mStripState;
$text = $this->strip( $text, $x );
$text = $this->internalParse( $text, $linestart );
$text = $this->unstrip( $text, $this->mStripState );
# Clean up special characters, only run once, next-to-last before doBlockLevels
if(!$wgUseTidy) {
$fixtags = array(
# french spaces, last one Guillemet-left
# only if there is something before the space
'/(.) (?=\\?|:|;|!|\\302\\273)/i' => '\\1&nbsp;\\2',
# french spaces, Guillemet-right
'/(\\302\\253) /i' => '\\1&nbsp;',
'/<hr *>/i' => '<hr />',
'/<br *>/i' => '<br />',
'/<center *>/i' => '<div class="center">',
'/<\\/center *>/i' => '</div>',
);
$text = preg_replace( array_keys($fixtags), array_values($fixtags), $text );
$text = Sanitizer::normalizeCharReferences( $text );
} else {
$fixtags = array(
# french spaces, last one Guillemet-left
'/ (\\?|:|;|!|\\302\\273)/i' => '&nbsp;\\1',
# french spaces, Guillemet-right
'/(\\302\\253) /i' => '\\1&nbsp;',
'/<center *>/i' => '<div class="center">',
'/<\\/center *>/i' => '</div>'
);
$text = preg_replace( array_keys($fixtags), array_values($fixtags), $text );
}
# only once and last
$text = $this->doBlockLevels( $text, $linestart );
$this->replaceLinkHolders( $text );
$text = $wgContLang->convert($text);
$text = $this->unstripNoWiki( $text, $this->mStripState );
global $wgUseTidy;
if ($wgUseTidy) {
$text = Parser::tidy($text);
}
$this->mOutput->setText( $text );
wfProfileOut( $fname );
return $this->mOutput;
}
/**
* Get a random string
*
* @access private
* @static
*/
function getRandomString() {
return dechex(mt_rand(0, 0x7fffffff)) . dechex(mt_rand(0, 0x7fffffff));
}
/**
* Replaces all occurrences of <$tag>content</$tag> in the text
* with a random marker and returns the new text. the output parameter
* $content will be an associative array filled with data on the form
* $unique_marker => content.
*
* If $content is already set, the additional entries will be appended
* If $tag is set to STRIP_COMMENTS, the function will extract
* <!-- HTML comments -->
*
* @access private
* @static
*/
function extractTags($tag, $text, &$content, $uniq_prefix = ''){
$rnd = $uniq_prefix . '-' . $tag . Parser::getRandomString();
if ( !$content ) {
$content = array( );
}
$n = 1;
$stripped = '';
while ( '' != $text ) {
if($tag==STRIP_COMMENTS) {
$p = preg_split( '/<!--/i', $text, 2 );
} else {
$p = preg_split( "/<\\s*$tag\\s*>/i", $text, 2 );
}
$stripped .= $p[0];
if ( ( count( $p ) < 2 ) || ( '' == $p[1] ) ) {
$text = '';
} else {
if($tag==STRIP_COMMENTS) {
$q = preg_split( '/-->/i', $p[1], 2 );
} else {
$q = preg_split( "/<\\/\\s*$tag\\s*>/i", $p[1], 2 );
}
$marker = $rnd . sprintf('%08X', $n++);
$content[$marker] = $q[0];
$stripped .= $marker;
$text = $q[1];
}
}
return $stripped;
}
/**
* Strips and renders nowiki, pre, math, hiero
* If $render is set, performs necessary rendering operations on plugins
* Returns the text, and fills an array with data needed in unstrip()
* If the $state is already a valid strip state, it adds to the state
*
* @param bool $stripcomments when set, HTML comments <!-- like this -->
* will be stripped in addition to other tags. This is important
* for section editing, where these comments cause confusion when
* counting the sections in the wikisource
*
* @access private
*/
function strip( $text, &$state, $stripcomments = false ) {
$render = ($this->mOutputType == OT_HTML);
$html_content = array();
$nowiki_content = array();
$math_content = array();
$pre_content = array();
$comment_content = array();
$ext_content = array();
$gallery_content = array();
# Replace any instances of the placeholders
$uniq_prefix = UNIQ_PREFIX;
#$text = str_replace( $uniq_prefix, wfHtmlEscapeFirst( $uniq_prefix ), $text );
# html
global $wgRawHtml, $wgWhitelistEdit;
if( $wgRawHtml && $wgWhitelistEdit ) {
$text = Parser::extractTags('html', $text, $html_content, $uniq_prefix);
foreach( $html_content as $marker => $content ) {
if ($render ) {
# Raw and unchecked for validity.
$html_content[$marker] = $content;
} else {
$html_content[$marker] = '<html>'.$content.'</html>';
}
}
}
# nowiki
$text = Parser::extractTags('nowiki', $text, $nowiki_content, $uniq_prefix);
foreach( $nowiki_content as $marker => $content ) {
if( $render ){
$nowiki_content[$marker] = wfEscapeHTMLTagsOnly( $content );
} else {
$nowiki_content[$marker] = '<nowiki>'.$content.'</nowiki>';
}
}
# math
$text = Parser::extractTags('math', $text, $math_content, $uniq_prefix);
foreach( $math_content as $marker => $content ){
if( $render ) {
if( $this->mOptions->getUseTeX() ) {
$math_content[$marker] = renderMath( $content );
} else {
$math_content[$marker] = '&lt;math&gt;'.$content.'&lt;math&gt;';
}
} else {
$math_content[$marker] = '<math>'.$content.'</math>';
}
}
# pre
$text = Parser::extractTags('pre', $text, $pre_content, $uniq_prefix);
foreach( $pre_content as $marker => $content ){
if( $render ){
$pre_content[$marker] = '<pre>' . wfEscapeHTMLTagsOnly( $content ) . '</pre>';
} else {
$pre_content[$marker] = '<pre>'.$content.'</pre>';
}
}
# gallery
$text = Parser::extractTags('gallery', $text, $gallery_content, $uniq_prefix);
foreach( $gallery_content as $marker => $content ) {
require_once( 'ImageGallery.php' );
if ( $render ) {
$gallery_content[$marker] = Parser::renderImageGallery( $content );
} else {
$gallery_content[$marker] = '<gallery>'.$content.'</gallery>';
}
}
# Comments
if($stripcomments) {
$text = Parser::extractTags(STRIP_COMMENTS, $text, $comment_content, $uniq_prefix);
foreach( $comment_content as $marker => $content ){
$comment_content[$marker] = '<!--'.$content.'-->';
}
}
# Extensions
foreach ( $this->mTagHooks as $tag => $callback ) {
$ext_contents[$tag] = array();
$text = Parser::extractTags( $tag, $text, $ext_content[$tag], $uniq_prefix );
foreach( $ext_content[$tag] as $marker => $content ) {
if ( $render ) {
$ext_content[$tag][$marker] = $callback( $content );
} else {
$ext_content[$tag][$marker] = "<$tag>$content</$tag>";
}
}
}
# Merge state with the pre-existing state, if there is one
if ( $state ) {
$state['html'] = $state['html'] + $html_content;
$state['nowiki'] = $state['nowiki'] + $nowiki_content;
$state['math'] = $state['math'] + $math_content;
$state['pre'] = $state['pre'] + $pre_content;
$state['comment'] = $state['comment'] + $comment_content;
$state['gallery'] = $state['gallery'] + $gallery_content;
foreach( $ext_content as $tag => $array ) {
if ( array_key_exists( $tag, $state ) ) {
$state[$tag] = $state[$tag] + $array;
}
}
} else {
$state = array(
'html' => $html_content,
'nowiki' => $nowiki_content,
'math' => $math_content,
'pre' => $pre_content,
'comment' => $comment_content,
'gallery' => $gallery_content,
) + $ext_content;
}
return $text;
}
/**
* restores pre, math, and hiero removed by strip()
*
* always call unstripNoWiki() after this one
* @access private
*/
function unstrip( $text, &$state ) {
# Must expand in reverse order, otherwise nested tags will be corrupted
$contentDict = end( $state );
for ( $contentDict = end( $state ); $contentDict !== false; $contentDict = prev( $state ) ) {
if( key($state) != 'nowiki' && key($state) != 'html') {
for ( $content = end( $contentDict ); $content !== false; $content = prev( $contentDict ) ) {
$text = str_replace( key( $contentDict ), $content, $text );
}
}
}
return $text;
}
/**
* always call this after unstrip() to preserve the order
*
* @access private
*/
function unstripNoWiki( $text, &$state ) {
# Must expand in reverse order, otherwise nested tags will be corrupted
for ( $content = end($state['nowiki']); $content !== false; $content = prev( $state['nowiki'] ) ) {
$text = str_replace( key( $state['nowiki'] ), $content, $text );
}
global $wgRawHtml;
if ($wgRawHtml) {
for ( $content = end($state['html']); $content !== false; $content = prev( $state['html'] ) ) {
$text = str_replace( key( $state['html'] ), $content, $text );
}
}
return $text;
}
/**
* Add an item to the strip state
* Returns the unique tag which must be inserted into the stripped text
* The tag will be replaced with the original text in unstrip()
*
* @access private
*/
function insertStripItem( $text, &$state ) {
$rnd = UNIQ_PREFIX . '-item' . Parser::getRandomString();
if ( !$state ) {
$state = array(
'html' => array(),
'nowiki' => array(),
'math' => array(),
'pre' => array()
);
}
$state['item'][$rnd] = $text;
return $rnd;
}
/**
* interface with html tidy, used if $wgUseTidy = true
*
* @access public
* @static
*/
function tidy ( $text ) {
global $wgTidyConf, $wgTidyBin, $wgTidyOpts;
global $wgInputEncoding, $wgOutputEncoding;
$fname = 'Parser::tidy';
wfProfileIn( $fname );
$cleansource = '';
$opts = '';
switch(strtoupper($wgOutputEncoding)) {
case 'ISO-8859-1':
$opts .= ($wgInputEncoding == $wgOutputEncoding)? ' -latin1':' -raw';
break;
case 'UTF-8':
$opts .= ($wgInputEncoding == $wgOutputEncoding)? ' -utf8':' -raw';
break;
default:
$opts .= ' -raw';
}
$wrappedtext = '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"'.
' "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html>'.
'<head><title>test</title></head><body>'.$text.'</body></html>';
$descriptorspec = array(
0 => array('pipe', 'r'),
1 => array('pipe', 'w'),
2 => array('file', '/dev/null', 'a')
);
$process = proc_open("$wgTidyBin -config $wgTidyConf $wgTidyOpts$opts", $descriptorspec, $pipes);
if (is_resource($process)) {
fwrite($pipes[0], $wrappedtext);
fclose($pipes[0]);
while (!feof($pipes[1])) {
$cleansource .= fgets($pipes[1], 1024);
}
fclose($pipes[1]);
$return_value = proc_close($process);
}
wfProfileOut( $fname );
if( $cleansource == '' && $text != '') {
wfDebug( "Tidy error detected!\n" );
return $text . "\n<!-- Tidy found serious XHTML errors -->\n";
} else {
return $cleansource;
}
}
/**
* parse the wiki syntax used to render tables
*
* @access private
*/
function doTableStuff ( $t ) {
$fname = 'Parser::doTableStuff';
wfProfileIn( $fname );
$t = explode ( "\n" , $t ) ;
$td = array () ; # Is currently a td tag open?
$ltd = array () ; # Was it TD or TH?
$tr = array () ; # Is currently a tr tag open?
$ltr = array () ; # tr attributes
$indent_level = 0; # indent level of the table
foreach ( $t AS $k => $x )
{
$x = trim ( $x ) ;
$fc = substr ( $x , 0 , 1 ) ;
if ( preg_match( '/^(:*)\{\|(.*)$/', $x, $matches ) ) {
$indent_level = strlen( $matches[1] );
$t[$k] = "\n" .
str_repeat( '<dl><dd>', $indent_level ) .
'<table' . Sanitizer::fixTagAttributes ( $matches[2], 'table' ) . '>' ;
array_push ( $td , false ) ;
array_push ( $ltd , '' ) ;
array_push ( $tr , false ) ;
array_push ( $ltr , '' ) ;
}
else if ( count ( $td ) == 0 ) { } # Don't do any of the following
else if ( '|}' == substr ( $x , 0 , 2 ) ) {
$z = "</table>" . substr ( $x , 2) . "\n";
$l = array_pop ( $ltd ) ;
if ( array_pop ( $tr ) ) $z = '</tr>' . $z ;
if ( array_pop ( $td ) ) $z = '</'.$l.'>' . $z ;
array_pop ( $ltr ) ;
$t[$k] = $z . str_repeat( '</dd></dl>', $indent_level );
}
else if ( '|-' == substr ( $x , 0 , 2 ) ) { # Allows for |---------------
$x = substr ( $x , 1 ) ;
while ( $x != '' && substr ( $x , 0 , 1 ) == '-' ) $x = substr ( $x , 1 ) ;
$z = '' ;
$l = array_pop ( $ltd ) ;
if ( array_pop ( $tr ) ) $z = '</tr>' . $z ;
if ( array_pop ( $td ) ) $z = '</'.$l.'>' . $z ;
array_pop ( $ltr ) ;
$t[$k] = $z ;
array_push ( $tr , false ) ;
array_push ( $td , false ) ;
array_push ( $ltd , '' ) ;
array_push ( $ltr , Sanitizer::fixTagAttributes ( $x, 'tr' ) ) ;
}
else if ( '|' == $fc || '!' == $fc || '|+' == substr ( $x , 0 , 2 ) ) { # Caption
# $x is a table row
if ( '|+' == substr ( $x , 0 , 2 ) ) {
$fc = '+' ;
$x = substr ( $x , 1 ) ;
}
$after = substr ( $x , 1 ) ;
if ( $fc == '!' ) $after = str_replace ( '!!' , '||' , $after ) ;
$after = explode ( '||' , $after ) ;
$t[$k] = '' ;
# Loop through each table cell
foreach ( $after AS $theline )
{
$z = '' ;
if ( $fc != '+' )
{
$tra = array_pop ( $ltr ) ;
if ( !array_pop ( $tr ) ) $z = '<tr'.$tra.">\n" ;
array_push ( $tr , true ) ;
array_push ( $ltr , '' ) ;
}
$l = array_pop ( $ltd ) ;
if ( array_pop ( $td ) ) $z = '</'.$l.'>' . $z ;
if ( $fc == '|' ) $l = 'td' ;
else if ( $fc == '!' ) $l = 'th' ;
else if ( $fc == '+' ) $l = 'caption' ;
else $l = '' ;
array_push ( $ltd , $l ) ;
# Cell parameters
$y = explode ( '|' , $theline , 2 ) ;
# Note that a '|' inside an invalid link should not
# be mistaken as delimiting cell parameters
if ( strpos( $y[0], '[[' ) !== false ) {
$y = array ($theline);
}
if ( count ( $y ) == 1 )
$y = "{$z}<{$l}>{$y[0]}" ;
else $y = $y = "{$z}<{$l}".Sanitizer::fixTagAttributes($y[0], $l).">{$y[1]}" ;
$t[$k] .= $y ;
array_push ( $td , true ) ;
}
}
}
# Closing open td, tr && table
while ( count ( $td ) > 0 )
{
if ( array_pop ( $td ) ) $t[] = '</td>' ;
if ( array_pop ( $tr ) ) $t[] = '</tr>' ;
$t[] = '</table>' ;
}
$t = implode ( "\n" , $t ) ;
# $t = Sanitizer::removeHTMLtags( $t );
wfProfileOut( $fname );
return $t ;
}
/**
* Helper function for parse() that transforms wiki markup into
* HTML. Only called for $mOutputType == OT_HTML.
*
* @access private
*/
function internalParse( $text, $linestart, $args = array(), $isMain=true ) {
global $wgContLang;
$fname = 'Parser::internalParse';
wfProfileIn( $fname );
$text = Sanitizer::removeHTMLtags( $text );
$text = $this->replaceVariables( $text, $args );
$text = preg_replace( '/(^|\n)-----*/', '\\1<hr />', $text );
$text = $this->doHeadings( $text );
if($this->mOptions->getUseDynamicDates()) {
global $wgDateFormatter;
$text = $wgDateFormatter->reformat( $this->mOptions->getDateFormat(), $text );
}
$text = $this->doAllQuotes( $text );
$text = $this->replaceInternalLinks( $text );
$text = $this->replaceExternalLinks( $text );
# replaceInternalLinks may sometimes leave behind
# absolute URLs, which have to be masked to hide them from replaceExternalLinks
$text = str_replace("http-noparse://","http://",$text);
$text = $this->doMagicLinks( $text );
$text = $this->doTableStuff( $text );
$text = $this->formatHeadings( $text, $isMain );
wfProfileOut( $fname );
return $text;
}
/**
* Replace special strings like "ISBN xxx" and "RFC xxx" with
* magic external links.
*
* @access private
*/
function &doMagicLinks( &$text ) {
$text = $this->magicISBN( $text );
$text = $this->magicRFC( $text, 'RFC ', 'rfcurl' );
$text = $this->magicRFC( $text, 'PMID ', 'pubmedurl' );
return $text;
}
/**
* Parse ^^ tokens and return html
*
* @access private
*/
function doExponent( $text ) {
$fname = 'Parser::doExponent';
wfProfileIn( $fname );
$text = preg_replace('/\^\^(.*)\^\^/','<small><sup>\\1</sup></small>', $text);
wfProfileOut( $fname );
return $text;
}
/**
* Parse headers and return html
*
* @access private
*/
function doHeadings( $text ) {
$fname = 'Parser::doHeadings';
wfProfileIn( $fname );
for ( $i = 6; $i >= 1; --$i ) {
$h = substr( '======', 0, $i );
$text = preg_replace( "/^{$h}(.+){$h}(\\s|$)/m",
"<h{$i}>\\1</h{$i}>\\2", $text );
}
wfProfileOut( $fname );
return $text;
}
/**
* Replace single quotes with HTML markup
* @access private
* @return string the altered text
*/
function doAllQuotes( $text ) {
$fname = 'Parser::doAllQuotes';
wfProfileIn( $fname );
$outtext = '';
$lines = explode( "\n", $text );
foreach ( $lines as $line ) {
$outtext .= $this->doQuotes ( $line ) . "\n";
}
$outtext = substr($outtext, 0,-1);
wfProfileOut( $fname );
return $outtext;
}
/**
* Helper function for doAllQuotes()
* @access private
*/
function doQuotes( $text ) {
$arr = preg_split( "/(''+)/", $text, -1, PREG_SPLIT_DELIM_CAPTURE );
if ( count( $arr ) == 1 )
return $text;
else
{
# First, do some preliminary work. This may shift some apostrophes from
# being mark-up to being text. It also counts the number of occurrences
# of bold and italics mark-ups.
$i = 0;
$numbold = 0;
$numitalics = 0;
foreach ( $arr as $r )
{
if ( ( $i % 2 ) == 1 )
{
# If there are ever four apostrophes, assume the first is supposed to
# be text, and the remaining three constitute mark-up for bold text.
if ( strlen( $arr[$i] ) == 4 )
{
$arr[$i-1] .= "'";
$arr[$i] = "'''";
}
# If there are more than 5 apostrophes in a row, assume they're all
# text except for the last 5.
else if ( strlen( $arr[$i] ) > 5 )
{
$arr[$i-1] .= str_repeat( "'", strlen( $arr[$i] ) - 5 );
$arr[$i] = "'''''";
}
# Count the number of occurrences of bold and italics mark-ups.
# We are not counting sequences of five apostrophes.
if ( strlen( $arr[$i] ) == 2 ) $numitalics++; else
if ( strlen( $arr[$i] ) == 3 ) $numbold++; else
if ( strlen( $arr[$i] ) == 5 ) { $numitalics++; $numbold++; }
}
$i++;
}
# If there is an odd number of both bold and italics, it is likely
# that one of the bold ones was meant to be an apostrophe followed
# by italics. Which one we cannot know for certain, but it is more
# likely to be one that has a single-letter word before it.
if ( ( $numbold % 2 == 1 ) && ( $numitalics % 2 == 1 ) )
{
$i = 0;
$firstsingleletterword = -1;
$firstmultiletterword = -1;
$firstspace = -1;
foreach ( $arr as $r )
{
if ( ( $i % 2 == 1 ) and ( strlen( $r ) == 3 ) )
{
$x1 = substr ($arr[$i-1], -1);
$x2 = substr ($arr[$i-1], -2, 1);
if ($x1 == ' ') {
if ($firstspace == -1) $firstspace = $i;
} else if ($x2 == ' ') {
if ($firstsingleletterword == -1) $firstsingleletterword = $i;
} else {
if ($firstmultiletterword == -1) $firstmultiletterword = $i;
}
}
$i++;
}
# If there is a single-letter word, use it!
if ($firstsingleletterword > -1)
{
$arr [ $firstsingleletterword ] = "''";
$arr [ $firstsingleletterword-1 ] .= "'";
}
# If not, but there's a multi-letter word, use that one.
else if ($firstmultiletterword > -1)
{
$arr [ $firstmultiletterword ] = "''";
$arr [ $firstmultiletterword-1 ] .= "'";
}
# ... otherwise use the first one that has neither.
# (notice that it is possible for all three to be -1 if, for example,
# there is only one pentuple-apostrophe in the line)
else if ($firstspace > -1)
{
$arr [ $firstspace ] = "''";
$arr [ $firstspace-1 ] .= "'";
}
}
# Now let's actually convert our apostrophic mush to HTML!
$output = '';
$buffer = '';
$state = '';
$i = 0;
foreach ($arr as $r)
{
if (($i % 2) == 0)
{
if ($state == 'both')
$buffer .= $r;
else
$output .= $r;
}
else
{
if (strlen ($r) == 2)
{
if ($state == 'i')
{ $output .= '</i>'; $state = ''; }
else if ($state == 'bi')
{ $output .= '</i>'; $state = 'b'; }
else if ($state == 'ib')
{ $output .= '</b></i><b>'; $state = 'b'; }
else if ($state == 'both')
{ $output .= '<b><i>'.$buffer.'</i>'; $state = 'b'; }
else # $state can be 'b' or ''
{ $output .= '<i>'; $state .= 'i'; }
}
else if (strlen ($r) == 3)
{
if ($state == 'b')
{ $output .= '</b>'; $state = ''; }
else if ($state == 'bi')
{ $output .= '</i></b><i>'; $state = 'i'; }
else if ($state == 'ib')
{ $output .= '</b>'; $state = 'i'; }
else if ($state == 'both')
{ $output .= '<i><b>'.$buffer.'</b>'; $state = 'i'; }
else # $state can be 'i' or ''
{ $output .= '<b>'; $state .= 'b'; }
}
else if (strlen ($r) == 5)
{
if ($state == 'b')
{ $output .= '</b><i>'; $state = 'i'; }
else if ($state == 'i')
{ $output .= '</i><b>'; $state = 'b'; }
else if ($state == 'bi')
{ $output .= '</i></b>'; $state = ''; }
else if ($state == 'ib')
{ $output .= '</b></i>'; $state = ''; }
else if ($state == 'both')
{ $output .= '<i><b>'.$buffer.'</b></i>'; $state = ''; }
else # ($state == '')
{ $buffer = ''; $state = 'both'; }
}
}
$i++;
}
# Now close all remaining tags. Notice that the order is important.
if ($state == 'b' || $state == 'ib')
$output .= '</b>';
if ($state == 'i' || $state == 'bi' || $state == 'ib')
$output .= '</i>';
if ($state == 'bi')
$output .= '</b>';
if ($state == 'both')
$output .= '<b><i>'.$buffer.'</i></b>';
return $output;
}
}
/**
* Replace external links
*
* Note: this is all very hackish and the order of execution matters a lot.
* Make sure to run maintenance/parserTests.php if you change this code.
*
* @access private
*/
function replaceExternalLinks( $text ) {
$fname = 'Parser::replaceExternalLinks';
wfProfileIn( $fname );
$sk =& $this->mOptions->getSkin();
global $wgContLang;
$linktrail = $wgContLang->linkTrail();
$bits = preg_split( EXT_LINK_BRACKETED, $text, -1, PREG_SPLIT_DELIM_CAPTURE );
$s = $this->replaceFreeExternalLinks( array_shift( $bits ) );
$i = 0;
while ( $i<count( $bits ) ) {
$url = $bits[$i++];
$protocol = $bits[$i++];
$text = $bits[$i++];
$trail = $bits[$i++];
# The characters '<' and '>' (which were escaped by
# removeHTMLtags()) should not be included in
# URLs, per RFC 2396.
if (preg_match('/&(lt|gt);/', $url, $m2, PREG_OFFSET_CAPTURE)) {
$text = substr($url, $m2[0][1]) . ' ' . $text;
$url = substr($url, 0, $m2[0][1]);
}
# If the link text is an image URL, replace it with an <img> tag
# This happened by accident in the original parser, but some people used it extensively
$img = $this->maybeMakeImageLink( $text );
if ( $img !== false ) {
$text = $img;
}
$dtrail = '';
# Set linktype for CSS - if URL==text, link is essentially free
$linktype = ($text == $url) ? 'free' : 'text';
# No link text, e.g. [http://domain.tld/some.link]
if ( $text == '' ) {
# Autonumber if allowed
if ( strpos( HTTP_PROTOCOLS, $protocol ) !== false ) {
$text = '[' . ++$this->mAutonumber . ']';
$linktype = 'autonumber';
} else {
# Otherwise just use the URL
$text = htmlspecialchars( $url );
$linktype = 'free';
}
} else {
# Have link text, e.g. [http://domain.tld/some.link text]s
# Check for trail
if ( preg_match( $linktrail, $trail, $m2 ) ) {
$dtrail = $m2[1];
$trail = $m2[2];
}
}
# Replace &amp; from obsolete syntax with &.
# All HTML entities will be escaped by makeExternalLink()
# or maybeMakeImageLink()
$url = str_replace( '&amp;', '&', $url );
# Process the trail (i.e. everything after this link up until start of the next link),
# replacing any non-bracketed links
$trail = $this->replaceFreeExternalLinks( $trail );
# Use the encoded URL
# This means that users can paste URLs directly into the text
# Funny characters like &ouml; aren't valid in URLs anyway
# This was changed in August 2004
$s .= $sk->makeExternalLink( $url, $text, false, $linktype ) . $dtrail . $trail;
}
wfProfileOut( $fname );
return $s;
}
/**
* Replace anything that looks like a URL with a link
* @access private
*/
function replaceFreeExternalLinks( $text ) {
$fname = 'Parser::replaceFreeExternalLinks';
wfProfileIn( $fname );
$bits = preg_split( '/(\b(?:'.URL_PROTOCOLS.'):)/S', $text, -1, PREG_SPLIT_DELIM_CAPTURE );
$s = array_shift( $bits );
$i = 0;
$sk =& $this->mOptions->getSkin();
while ( $i < count( $bits ) ){
$protocol = $bits[$i++];
$remainder = $bits[$i++];
if ( preg_match( '/^('.EXT_LINK_URL_CLASS.'+)(.*)$/s', $remainder, $m ) ) {
# Found some characters after the protocol that look promising
$url = $protocol . $m[1];
$trail = $m[2];
# The characters '<' and '>' (which were escaped by
# removeHTMLtags()) should not be included in
# URLs, per RFC 2396.
if (preg_match('/&(lt|gt);/', $url, $m2, PREG_OFFSET_CAPTURE)) {
$trail = substr($url, $m2[0][1]) . $trail;
$url = substr($url, 0, $m2[0][1]);
}
# Move trailing punctuation to $trail
$sep = ',;\.:!?';
# If there is no left bracket, then consider right brackets fair game too
if ( strpos( $url, '(' ) === false ) {
$sep .= ')';
}
$numSepChars = strspn( strrev( $url ), $sep );
if ( $numSepChars ) {
$trail = substr( $url, -$numSepChars ) . $trail;
$url = substr( $url, 0, -$numSepChars );
}
# Replace &amp; from obsolete syntax with &.
# All HTML entities will be escaped by makeExternalLink()
# or maybeMakeImageLink()
$url = str_replace( '&amp;', '&', $url );
# Is this an external image?
$text = $this->maybeMakeImageLink( $url );
if ( $text === false ) {
# Not an image, make a link
$text = $sk->makeExternalLink( $url, $url, true, 'free' );
}
$s .= $text . $trail;
} else {
$s .= $protocol . $remainder;
}
}
wfProfileOut();
return $s;
}
/**
* make an image if it's allowed
* @access private
*/
function maybeMakeImageLink( $url ) {
$sk =& $this->mOptions->getSkin();
$text = false;
if ( $this->mOptions->getAllowExternalImages() ) {
if ( preg_match( EXT_IMAGE_REGEX, $url ) ) {
# Image found
$text = $sk->makeImage( htmlspecialchars( $url ) );
}
}
return $text;
}
/**
* Process [[ ]] wikilinks
*
* @access private
*/
function replaceInternalLinks( $s ) {
global $wgLang, $wgContLang, $wgLinkCache;
global $wgDisableLangConversion;
static $fname = 'Parser::replaceInternalLinks' ;
wfProfileIn( $fname );
wfProfileIn( $fname.'-setup' );
static $tc = FALSE;
# the % is needed to support urlencoded titles as well
if ( !$tc ) { $tc = Title::legalChars() . '#%'; }
$sk =& $this->mOptions->getSkin();
global $wgUseOldExistenceCheck;
# "Post-parse link colour check" works only on wiki text since it's now
# in Parser. Enable it, then disable it when we're done.
$saveParseColour = $sk->postParseLinkColour( !$wgUseOldExistenceCheck );
$redirect = MagicWord::get ( MAG_REDIRECT ) ;
#split the entire text string on occurences of [[
$a = explode( '[[', ' ' . $s );
#get the first element (all text up to first [[), and remove the space we added
$s = array_shift( $a );
$s = substr( $s, 1 );
# Match a link having the form [[namespace:link|alternate]]trail
static $e1 = FALSE;
if ( !$e1 ) { $e1 = "/^([{$tc}]+)(?:\\|(.+?))?]](.*)\$/sD"; }
# Match cases where there is no "]]", which might still be images
static $e1_img = FALSE;
if ( !$e1_img ) { $e1_img = "/^([{$tc}]+)\\|(.*)\$/sD"; }
# Match the end of a line for a word that's not followed by whitespace,
# e.g. in the case of 'The Arab al[[Razi]]', 'al' will be matched
static $e2 = '/^(.*?)([a-zA-Z\x80-\xff]+)$/sD';
$useLinkPrefixExtension = $wgContLang->linkPrefixExtension();
if( is_null( $this->mTitle ) ) {
wfDebugDieBacktrace( 'nooo' );
}
$nottalk = !$this->mTitle->isTalkPage();
if ( $useLinkPrefixExtension ) {
if ( preg_match( $e2, $s, $m ) ) {
$first_prefix = $m[2];
$s = $m[1];
} else {
$first_prefix = false;
}
} else {
$prefix = '';
}
$selflink = $this->mTitle->getPrefixedText();
wfProfileOut( $fname.'-setup' );
$checkVariantLink = sizeof($wgContLang->getVariants())>1;
$useSubpages = $this->areSubpagesAllowed();
# Loop for each link
for ($k = 0; isset( $a[$k] ); $k++) {
$line = $a[$k];
if ( $useLinkPrefixExtension ) {
wfProfileIn( $fname.'-prefixhandling' );
if ( preg_match( $e2, $s, $m ) ) {
$prefix = $m[2];
$s = $m[1];
} else {
$prefix='';
}
# first link
if($first_prefix) {
$prefix = $first_prefix;
$first_prefix = false;
}
wfProfileOut( $fname.'-prefixhandling' );
}
$might_be_img = false;
if ( preg_match( $e1, $line, $m ) ) { # page with normal text or alt
$text = $m[2];
# fix up urlencoded title texts
if(preg_match('/%/', $m[1] )) $m[1] = urldecode($m[1]);
$trail = $m[3];
} elseif( preg_match($e1_img, $line, $m) ) { # Invalid, but might be an image with a link in its caption
$might_be_img = true;
$text = $m[2];
if(preg_match('/%/', $m[1] )) $m[1] = urldecode($m[1]);
$trail = "";
} else { # Invalid form; output directly
$s .= $prefix . '[[' . $line ;
continue;
}
# Don't allow internal links to pages containing
# PROTO: where PROTO is a valid URL protocol; these
# should be external links.
if (preg_match('/^(\b(?:'.URL_PROTOCOLS.'):)/', $m[1])) {
$s .= $prefix . '[[' . $line ;
continue;
}
# Make subpage if necessary
if( $useSubpages ) {
$link = $this->maybeDoSubpageLink( $m[1], $text );
} else {
$link = $m[1];
}
$noforce = (substr($m[1], 0, 1) != ':');
if (!$noforce) {
# Strip off leading ':'
$link = substr($link, 1);
}
$nt =& Title::newFromText( $this->unstripNoWiki($link, $this->mStripState) );
if( !$nt ) {
$s .= $prefix . '[[' . $line;
continue;
}
#check other language variants of the link
#if the article does not exist
if( $checkVariantLink
&& $nt->getArticleID() == 0 ) {
$wgContLang->findVariantLink($link, $nt);
}
$ns = $nt->getNamespace();
$iw = $nt->getInterWiki();
if ($might_be_img) { # if this is actually an invalid link
if ($ns == NS_IMAGE && $noforce) { #but might be an image
$found = false;
while (isset ($a[$k+1]) ) {
#look at the next 'line' to see if we can close it there
$next_line = array_shift(array_splice( $a, $k + 1, 1) );
if( preg_match("/^(.*?]].*?)]](.*)$/sD", $next_line, $m) ) {
# the first ]] closes the inner link, the second the image
$found = true;
$text .= '[[' . $m[1];
$trail = $m[2];
break;
} elseif( preg_match("/^.*?]].*$/sD", $next_line, $m) ) {
#if there's exactly one ]] that's fine, we'll keep looking
$text .= '[[' . $m[0];
} else {
#if $next_line is invalid too, we need look no further
$text .= '[[' . $next_line;
break;
}
}
if ( !$found ) {
# we couldn't find the end of this imageLink, so output it raw
#but don't ignore what might be perfectly normal links in the text we've examined
$text = $this->replaceInternalLinks($text);
$s .= $prefix . '[[' . $link . '|' . $text;
# note: no $trail, because without an end, there *is* no trail
continue;
}
} else { #it's not an image, so output it raw
$s .= $prefix . '[[' . $link . '|' . $text;
# note: no $trail, because without an end, there *is* no trail
continue;
}
}
$wasblank = ( '' == $text );
if( $wasblank ) $text = $link;
# Link not escaped by : , create the various objects
if( $noforce ) {
# Interwikis
if( $iw && $this->mOptions->getInterwikiMagic() && $nottalk && $wgContLang->getLanguageName( $iw ) ) {
array_push( $this->mOutput->mLanguageLinks, $nt->getFullText() );
$tmp = $prefix . $trail ;
$s .= (trim($tmp) == '')? '': $tmp;
continue;
}
if ( $ns == NS_IMAGE ) {
wfProfileIn( "$fname-image" );
# recursively parse links inside the image caption
# actually, this will parse them in any other parameters, too,
# but it might be hard to fix that, and it doesn't matter ATM
$text = $this->replaceExternalLinks($text);
$text = $this->replaceInternalLinks($text);
# cloak any absolute URLs inside the image markup, so replaceExternalLinks() won't touch them
$s .= $prefix . str_replace('http://', 'http-noparse://', $sk->makeImageLinkObj( $nt, $text ) ) . $trail;
$wgLinkCache->addImageLinkObj( $nt );
wfProfileOut( "$fname-image" );
continue;
}
if ( $ns == NS_CATEGORY ) {
wfProfileIn( "$fname-category" );
$t = $nt->getText();
$wgLinkCache->suspend(); # Don't save in links/brokenlinks
$pPLC=$sk->postParseLinkColour();
$sk->postParseLinkColour( false );
$t = $sk->makeLinkObj( $nt, $t, '', '' , $prefix );
$sk->postParseLinkColour( $pPLC );
$wgLinkCache->resume();
if ( $wasblank ) {
if ( $this->mTitle->getNamespace() == NS_CATEGORY ) {
$sortkey = $this->mTitle->getText();
} else {
$sortkey = $this->mTitle->getPrefixedText();
}
} else {
$sortkey = $text;
}
$wgLinkCache->addCategoryLinkObj( $nt, $sortkey );
$this->mOutput->addCategoryLink( $t );
$s .= $prefix . $trail ;
wfProfileOut( "$fname-category" );
continue;
}
}
if( ( $nt->getPrefixedText() === $selflink ) &&
( $nt->getFragment() === '' ) ) {
# Self-links are handled specially; generally de-link and change to bold.
$s .= $prefix . $sk->makeSelfLinkObj( $nt, $text, '', $trail );
continue;
}
# Special and Media are pseudo-namespaces; no pages actually exist in them
if( $ns == NS_MEDIA ) {
$s .= $prefix . $sk->makeMediaLinkObj( $nt, $text, true ) . $trail;
$wgLinkCache->addImageLinkObj( $nt );
continue;
} elseif( $ns == NS_SPECIAL ) {
$s .= $prefix . $sk->makeKnownLinkObj( $nt, $text, '', $trail );
continue;
}
$s .= $sk->makeLinkObj( $nt, $text, '', $trail, $prefix );
}
$sk->postParseLinkColour( $saveParseColour );
wfProfileOut( $fname );
return $s;
}
/**
* Return true if subpage links should be expanded on this page.
* @return bool
*/
function areSubpagesAllowed() {
# Some namespaces don't allow subpages
global $wgNamespacesWithSubpages;
return !empty($wgNamespacesWithSubpages[$this->mTitle->getNamespace()]);
}
/**
* Handle link to subpage if necessary
* @param string $target the source of the link
* @param string &$text the link text, modified as necessary
* @return string the full name of the link
* @access private
*/
function maybeDoSubpageLink($target, &$text) {
# Valid link forms:
# Foobar -- normal
# :Foobar -- override special treatment of prefix (images, language links)
# /Foobar -- convert to CurrentPage/Foobar
# /Foobar/ -- convert to CurrentPage/Foobar, strip the initial / from text
# ../ -- convert to CurrentPage, from CurrentPage/CurrentSubPage
# ../Foobar -- convert to CurrentPage/Foobar, from CurrentPage/CurrentSubPage
$fname = 'Parser::maybeDoSubpageLink';
wfProfileIn( $fname );
$ret = $target; # default return value is no change
# Some namespaces don't allow subpages,
# so only perform processing if subpages are allowed
if( $this->areSubpagesAllowed() ) {
# Look at the first character
if( $target != '' && $target{0} == '/' ) {
# / at end means we don't want the slash to be shown
if( substr( $target, -1, 1 ) == '/' ) {
$target = substr( $target, 1, -1 );
$noslash = $target;
} else {
$noslash = substr( $target, 1 );
}
$ret = $this->mTitle->getPrefixedText(). '/' . trim($noslash);
if( '' === $text ) {
$text = $target;
} # this might be changed for ugliness reasons
} else {
# check for .. subpage backlinks
$dotdotcount = 0;
$nodotdot = $target;
while( strncmp( $nodotdot, "../", 3 ) == 0 ) {
++$dotdotcount;
$nodotdot = substr( $nodotdot, 3 );
}
if($dotdotcount > 0) {
$exploded = explode( '/', $this->mTitle->GetPrefixedText() );
if( count( $exploded ) > $dotdotcount ) { # not allowed to go below top level page
$ret = implode( '/', array_slice( $exploded, 0, -$dotdotcount ) );
# / at the end means don't show full path
if( substr( $nodotdot, -1, 1 ) == '/' ) {
$nodotdot = substr( $nodotdot, 0, -1 );
if( '' === $text ) {
$text = $nodotdot;
}
}
$nodotdot = trim( $nodotdot );
if( $nodotdot != '' ) {
$ret .= '/' . $nodotdot;
}
}
}
}
}
wfProfileOut( $fname );
return $ret;
}
/**#@+
* Used by doBlockLevels()
* @access private
*/
/* private */ function closeParagraph() {
$result = '';
if ( '' != $this->mLastSection ) {
$result = '</' . $this->mLastSection . ">\n";
}
$this->mInPre = false;
$this->mLastSection = '';
return $result;
}
# getCommon() returns the length of the longest common substring
# of both arguments, starting at the beginning of both.
#
/* private */ function getCommon( $st1, $st2 ) {
$fl = strlen( $st1 );
$shorter = strlen( $st2 );
if ( $fl < $shorter ) { $shorter = $fl; }
for ( $i = 0; $i < $shorter; ++$i ) {
if ( $st1{$i} != $st2{$i} ) { break; }
}
return $i;
}
# These next three functions open, continue, and close the list
# element appropriate to the prefix character passed into them.
#
/* private */ function openList( $char ) {
$result = $this->closeParagraph();
if ( '*' == $char ) { $result .= '<ul><li>'; }
else if ( '#' == $char ) { $result .= '<ol><li>'; }
else if ( ':' == $char ) { $result .= '<dl><dd>'; }
else if ( ';' == $char ) {
$result .= '<dl><dt>';
$this->mDTopen = true;
}
else { $result = '<!-- ERR 1 -->'; }
return $result;
}
/* private */ function nextItem( $char ) {
if ( '*' == $char || '#' == $char ) { return '</li><li>'; }
else if ( ':' == $char || ';' == $char ) {
$close = '</dd>';
if ( $this->mDTopen ) { $close = '</dt>'; }
if ( ';' == $char ) {
$this->mDTopen = true;
return $close . '<dt>';
} else {
$this->mDTopen = false;
return $close . '<dd>';
}
}
return '<!-- ERR 2 -->';
}
/* private */ function closeList( $char ) {
if ( '*' == $char ) { $text = '</li></ul>'; }
else if ( '#' == $char ) { $text = '</li></ol>'; }
else if ( ':' == $char ) {
if ( $this->mDTopen ) {
$this->mDTopen = false;
$text = '</dt></dl>';
} else {
$text = '</dd></dl>';
}
}
else { return '<!-- ERR 3 -->'; }
return $text."\n";
}
/**#@-*/
/**
* Make lists from lines starting with ':', '*', '#', etc.
*
* @access private
* @return string the lists rendered as HTML
*/
function doBlockLevels( $text, $linestart ) {
$fname = 'Parser::doBlockLevels';
wfProfileIn( $fname );
# Parsing through the text line by line. The main thing
# happening here is handling of block-level elements p, pre,
# and making lists from lines starting with * # : etc.
#
$textLines = explode( "\n", $text );
$lastPrefix = $output = $lastLine = '';
$this->mDTopen = $inBlockElem = false;
$prefixLength = 0;
$paragraphStack = false;
if ( !$linestart ) {
$output .= array_shift( $textLines );
}
foreach ( $textLines as $oLine ) {
$lastPrefixLength = strlen( $lastPrefix );
$preCloseMatch = preg_match('/<\\/pre/i', $oLine );
$preOpenMatch = preg_match('/<pre/i', $oLine );
if ( !$this->mInPre ) {
# Multiple prefixes may abut each other for nested lists.
$prefixLength = strspn( $oLine, '*#:;' );
$pref = substr( $oLine, 0, $prefixLength );
# eh?
$pref2 = str_replace( ';', ':', $pref );
$t = substr( $oLine, $prefixLength );
$this->mInPre = !empty($preOpenMatch);
} else {
# Don't interpret any other prefixes in preformatted text
$prefixLength = 0;
$pref = $pref2 = '';
$t = $oLine;
}
# List generation
if( $prefixLength && 0 == strcmp( $lastPrefix, $pref2 ) ) {
# Same as the last item, so no need to deal with nesting or opening stuff
$output .= $this->nextItem( substr( $pref, -1 ) );
$paragraphStack = false;
if ( substr( $pref, -1 ) == ';') {
# The one nasty exception: definition lists work like this:
# ; title : definition text
# So we check for : in the remainder text to split up the
# title and definition, without b0rking links.
if ($this->findColonNoLinks($t, $term, $t2) !== false) {
$t = $t2;
$output .= $term . $this->nextItem( ':' );
}
}
} elseif( $prefixLength || $lastPrefixLength ) {
# Either open or close a level...
$commonPrefixLength = $this->getCommon( $pref, $lastPrefix );
$paragraphStack = false;
while( $commonPrefixLength < $lastPrefixLength ) {
$output .= $this->closeList( $lastPrefix{$lastPrefixLength-1} );
--$lastPrefixLength;
}
if ( $prefixLength <= $commonPrefixLength && $commonPrefixLength > 0 ) {
$output .= $this->nextItem( $pref{$commonPrefixLength-1} );
}
while ( $prefixLength > $commonPrefixLength ) {
$char = substr( $pref, $commonPrefixLength, 1 );
$output .= $this->openList( $char );
if ( ';' == $char ) {
# FIXME: This is dupe of code above
if ($this->findColonNoLinks($t, $term, $t2) !== false) {
$t = $t2;
$output .= $term . $this->nextItem( ':' );
}
}
++$commonPrefixLength;
}
$lastPrefix = $pref2;
}
if( 0 == $prefixLength ) {
wfProfileIn( "$fname-paragraph" );
# No prefix (not in list)--go to paragraph mode
$uniq_prefix = UNIQ_PREFIX;
// XXX: use a stack for nestable elements like span, table and div
$openmatch = preg_match('/(<table|<blockquote|<h1|<h2|<h3|<h4|<h5|<h6|<pre|<tr|<p|<ul|<li|<\\/tr|<\\/td|<\\/th)/iS', $t );
$closematch = preg_match(
'/(<\\/table|<\\/blockquote|<\\/h1|<\\/h2|<\\/h3|<\\/h4|<\\/h5|<\\/h6|'.
'<td|<th|<div|<\\/div|<hr|<\\/pre|<\\/p|'.$uniq_prefix.'-pre|<\\/li|<\\/ul)/iS', $t );
if ( $openmatch or $closematch ) {
$paragraphStack = false;
$output .= $this->closeParagraph();
if($preOpenMatch and !$preCloseMatch) {
$this->mInPre = true;
}
if ( $closematch ) {
$inBlockElem = false;
} else {
$inBlockElem = true;
}
} else if ( !$inBlockElem && !$this->mInPre ) {
if ( ' ' == $t{0} and ( $this->mLastSection == 'pre' or trim($t) != '' ) ) {
// pre
if ($this->mLastSection != 'pre') {
$paragraphStack = false;
$output .= $this->closeParagraph().'<pre>';
$this->mLastSection = 'pre';
}
$t = substr( $t, 1 );
} else {
// paragraph
if ( '' == trim($t) ) {
if ( $paragraphStack ) {
$output .= $paragraphStack.'<br />';
$paragraphStack = false;
$this->mLastSection = 'p';
} else {
if ($this->mLastSection != 'p' ) {
$output .= $this->closeParagraph();
$this->mLastSection = '';
$paragraphStack = '<p>';
} else {
$paragraphStack = '</p><p>';
}
}
} else {
if ( $paragraphStack ) {
$output .= $paragraphStack;
$paragraphStack = false;
$this->mLastSection = 'p';
} else if ($this->mLastSection != 'p') {
$output .= $this->closeParagraph().'<p>';
$this->mLastSection = 'p';
}
}
}
}
wfProfileOut( "$fname-paragraph" );
}
if ($paragraphStack === false) {
$output .= $t."\n";
}
}
while ( $prefixLength ) {
$output .= $this->closeList( $pref2{$prefixLength-1} );
--$prefixLength;
}
if ( '' != $this->mLastSection ) {
$output .= '</' . $this->mLastSection . '>';
$this->mLastSection = '';
}
wfProfileOut( $fname );
return $output;
}
/**
* Split up a string on ':', ignoring any occurences inside
* <a>..</a> or <span>...</span>
* @param string $str the string to split
* @param string &$before set to everything before the ':'
* @param string &$after set to everything after the ':'
* return string the position of the ':', or false if none found
*/
function findColonNoLinks($str, &$before, &$after) {
# I wonder if we should make this count all tags, not just <a>
# and <span>. That would prevent us from matching a ':' that
# comes in the middle of italics other such formatting....
# -- Wil
$fname = 'Parser::findColonNoLinks';
wfProfileIn( $fname );
$pos = 0;
do {
$colon = strpos($str, ':', $pos);
if ($colon !== false) {
$before = substr($str, 0, $colon);
$after = substr($str, $colon + 1);
# Skip any ':' within <a> or <span> pairs
$a = substr_count($before, '<a');
$s = substr_count($before, '<span');
$ca = substr_count($before, '</a>');
$cs = substr_count($before, '</span>');
if ($a <= $ca and $s <= $cs) {
# Tags are balanced before ':'; ok
break;
}
$pos = $colon + 1;
}
} while ($colon !== false);
wfProfileOut( $fname );
return $colon;
}
/**
* Return value of a magic variable (like PAGENAME)
*
* @access private
*/
function getVariableValue( $index ) {
global $wgContLang, $wgSitename, $wgServer;
/**
* Some of these require message or data lookups and can be
* expensive to check many times.
*/
static $varCache = array();
if( isset( $varCache[$index] ) ) return $varCache[$index];
switch ( $index ) {
case MAG_CURRENTMONTH:
return $varCache[$index] = $wgContLang->formatNum( date( 'm' ) );
case MAG_CURRENTMONTHNAME:
return $varCache[$index] = $wgContLang->getMonthName( date('n') );
case MAG_CURRENTMONTHNAMEGEN:
return $varCache[$index] = $wgContLang->getMonthNameGen( date('n') );
case MAG_CURRENTDAY:
return $varCache[$index] = $wgContLang->formatNum( date('j') );
case MAG_PAGENAME:
return $this->mTitle->getText();
case MAG_PAGENAMEE:
return $this->mTitle->getPartialURL();
case MAG_NAMESPACE:
# return Namespace::getCanonicalName($this->mTitle->getNamespace());
return $wgContLang->getNsText($this->mTitle->getNamespace()); # Patch by Dori
case MAG_CURRENTDAYNAME:
return $varCache[$index] = $wgContLang->getWeekdayName( date('w')+1 );
case MAG_CURRENTYEAR:
return $varCache[$index] = $wgContLang->formatNum( date( 'Y' ) );
case MAG_CURRENTTIME:
return $varCache[$index] = $wgContLang->time( wfTimestampNow(), false );
case MAG_CURRENTWEEK:
return $varCache[$index] = $wgContLang->formatNum( date('W') );
case MAG_CURRENTDOW:
return $varCache[$index] = $wgContLang->formatNum( date('w') );
case MAG_NUMBEROFARTICLES:
return $varCache[$index] = $wgContLang->formatNum( wfNumberOfArticles() );
case MAG_SITENAME:
return $wgSitename;
case MAG_SERVER:
return $wgServer;
default:
return NULL;
}
}
/**
* initialise the magic variables (like CURRENTMONTHNAME)
*
* @access private
*/
function initialiseVariables() {
$fname = 'Parser::initialiseVariables';
wfProfileIn( $fname );
global $wgVariableIDs;
$this->mVariables = array();
foreach ( $wgVariableIDs as $id ) {
$mw =& MagicWord::get( $id );
$mw->addToArray( $this->mVariables, $id );
}
wfProfileOut( $fname );
}
/**
* Replace magic variables, templates, and template arguments
* with the appropriate text. Templates are substituted recursively,
* taking care to avoid infinite loops.
*
* Note that the substitution depends on value of $mOutputType:
* OT_WIKI: only {{subst:}} templates
* OT_MSG: only magic variables
* OT_HTML: all templates and magic variables
*
* @param string $tex The text to transform
* @param array $args Key-value pairs representing template parameters to substitute
* @access private
*/
function replaceVariables( $text, $args = array() ) {
global $wgLang, $wgScript, $wgArticlePath;
# Prevent too big inclusions
if( strlen( $text ) > MAX_INCLUDE_SIZE ) {
return $text;
}
$fname = 'Parser::replaceVariables';
wfProfileIn( $fname );
$titleChars = Title::legalChars();
# This function is called recursively. To keep track of arguments we need a stack:
array_push( $this->mArgStack, $args );
# Variable substitution
$text = preg_replace_callback( "/{{([$titleChars]*?)}}/", array( &$this, 'variableSubstitution' ), $text );
if ( $this->mOutputType == OT_HTML || $this->mOutputType == OT_WIKI ) {
# Argument substitution
$text = preg_replace_callback( "/{{{([$titleChars]*?)}}}/", array( &$this, 'argSubstitution' ), $text );
}
# Template substitution
$regex = '/(\\n|{)?{{(['.$titleChars.']*)(\\|.*?|)}}/s';
$text = preg_replace_callback( $regex, array( &$this, 'braceSubstitution' ), $text );
array_pop( $this->mArgStack );
wfProfileOut( $fname );
return $text;
}
/**
* Replace magic variables
* @access private
*/
function variableSubstitution( $matches ) {
$fname = 'parser::variableSubstitution';
$varname = $matches[1];
wfProfileIn( $fname );
if ( !$this->mVariables ) {
$this->initialiseVariables();
}
$skip = false;
if ( $this->mOutputType == OT_WIKI ) {
# Do only magic variables prefixed by SUBST
$mwSubst =& MagicWord::get( MAG_SUBST );
if (!$mwSubst->matchStartAndRemove( $varname ))
$skip = true;
# Note that if we don't substitute the variable below,
# we don't remove the {{subst:}} magic word, in case
# it is a template rather than a magic variable.
}
if ( !$skip && array_key_exists( $varname, $this->mVariables ) ) {
$id = $this->mVariables[$varname];
$text = $this->getVariableValue( $id );
$this->mOutput->mContainsOldMagic = true;
} else {
$text = $matches[0];
}
wfProfileOut( $fname );
return $text;
}
# Split template arguments
function getTemplateArgs( $argsString ) {
if ( $argsString === '' ) {
return array();
}
$args = explode( '|', substr( $argsString, 1 ) );
# If any of the arguments contains a '[[' but no ']]', it needs to be
# merged with the next arg because the '|' character between belongs
# to the link syntax and not the template parameter syntax.
$argc = count($args);
$i = 0;
for ( $i = 0; $i < $argc-1; $i++ ) {
if ( substr_count ( $args[$i], '[[' ) != substr_count ( $args[$i], ']]' ) ) {
$args[$i] .= '|'.$args[$i+1];
array_splice($args, $i+1, 1);
$i--;
$argc--;
}
}
return $args;
}
/**
* Return the text of a template, after recursively
* replacing any variables or templates within the template.
*
* @param array $matches The parts of the template
* $matches[1]: the title, i.e. the part before the |
* $matches[2]: the parameters (including a leading |), if any
* @return string the text of the template
* @access private
*/
function braceSubstitution( $matches ) {
global $wgLinkCache, $wgContLang;
$fname = 'Parser::braceSubstitution';
wfProfileIn( $fname );
$found = false;
$nowiki = false;
$noparse = false;
$title = NULL;
# Need to know if the template comes at the start of a line,
# to treat the beginning of the template like the beginning
# of a line for tables and block-level elements.
$linestart = $matches[1];
# $part1 is the bit before the first |, and must contain only title characters
# $args is a list of arguments, starting from index 0, not including $part1
$part1 = $matches[2];
# If the third subpattern matched anything, it will start with |
$args = $this->getTemplateArgs($matches[3]);
$argc = count( $args );
# Don't parse {{{}}} because that's only for template arguments
if ( $linestart === '{' ) {
$text = $matches[0];
$found = true;
$noparse = true;
}
# SUBST
if ( !$found ) {
$mwSubst =& MagicWord::get( MAG_SUBST );
if ( $mwSubst->matchStartAndRemove( $part1 ) xor ($this->mOutputType == OT_WIKI) ) {
# One of two possibilities is true:
# 1) Found SUBST but not in the PST phase
# 2) Didn't find SUBST and in the PST phase
# In either case, return without further processing
$text = $matches[0];
$found = true;
$noparse = true;
}
}
# MSG, MSGNW and INT
if ( !$found ) {
# Check for MSGNW:
$mwMsgnw =& MagicWord::get( MAG_MSGNW );
if ( $mwMsgnw->matchStartAndRemove( $part1 ) ) {
$nowiki = true;
} else {
# Remove obsolete MSG:
$mwMsg =& MagicWord::get( MAG_MSG );
$mwMsg->matchStartAndRemove( $part1 );
}
# Check if it is an internal message
$mwInt =& MagicWord::get( MAG_INT );
if ( $mwInt->matchStartAndRemove( $part1 ) ) {
if ( $this->incrementIncludeCount( 'int:'.$part1 ) ) {
$text = $linestart . wfMsgReal( $part1, $args, true );
$found = true;
}
}
}
# NS
if ( !$found ) {
# Check for NS: (namespace expansion)
$mwNs = MagicWord::get( MAG_NS );
if ( $mwNs->matchStartAndRemove( $part1 ) ) {
if ( intval( $part1 ) ) {
$text = $linestart . $wgContLang->getNsText( intval( $part1 ) );
$found = true;
} else {
$index = Namespace::getCanonicalIndex( strtolower( $part1 ) );
if ( !is_null( $index ) ) {
$text = $linestart . $wgContLang->getNsText( $index );
$found = true;
}
}
}
}
# LOCALURL and LOCALURLE
if ( !$found ) {
$mwLocal = MagicWord::get( MAG_LOCALURL );
$mwLocalE = MagicWord::get( MAG_LOCALURLE );
if ( $mwLocal->matchStartAndRemove( $part1 ) ) {
$func = 'getLocalURL';
} elseif ( $mwLocalE->matchStartAndRemove( $part1 ) ) {
$func = 'escapeLocalURL';
} else {
$func = '';
}
if ( $func !== '' ) {
$title = Title::newFromText( $part1 );
if ( !is_null( $title ) ) {
if ( $argc > 0 ) {
$text = $linestart . $title->$func( $args[0] );
} else {
$text = $linestart . $title->$func();
}
$found = true;
}
}
}
# GRAMMAR
if ( !$found && $argc == 1 ) {
$mwGrammar =& MagicWord::get( MAG_GRAMMAR );
if ( $mwGrammar->matchStartAndRemove( $part1 ) ) {
$text = $linestart . $wgContLang->convertGrammar( $args[0], $part1 );
$found = true;
}
}
# Template table test
# Did we encounter this template already? If yes, it is in the cache
# and we need to check for loops.
if ( !$found && isset( $this->mTemplates[$part1] ) ) {
$found = true;
# Infinite loop test
if ( isset( $this->mTemplatePath[$part1] ) ) {
$noparse = true;
$found = true;
$text = $linestart .
"\{\{$part1}}" .
'<!-- WARNING: template loop detected -->';
wfDebug( "$fname: template loop broken at '$part1'\n" );
} else {
# set $text to cached message.
$text = $linestart . $this->mTemplates[$part1];
}
}
# Load from database
$itcamefromthedatabase = false;
$lastPathLevel = $this->mTemplatePath;
if ( !$found ) {
$ns = NS_TEMPLATE;
$part1 = $this->maybeDoSubpageLink( $part1, $subpage='' );
if ($subpage !== '') {
$ns = $this->mTitle->getNamespace();
}
$title = Title::newFromText( $part1, $ns );
if ( !is_null( $title ) && !$title->isExternal() ) {
# Check for excessive inclusion
$dbk = $title->getPrefixedDBkey();
if ( $this->incrementIncludeCount( $dbk ) ) {
# This should never be reached.
$article = new Article( $title );
$articleContent = $article->getContentWithoutUsingSoManyDamnGlobals();
if ( $articleContent !== false ) {
$found = true;
$text = $linestart . $articleContent;
$itcamefromthedatabase = true;
}
}
# If the title is valid but undisplayable, make a link to it
if ( $this->mOutputType == OT_HTML && !$found ) {
$text = $linestart . '[['.$title->getPrefixedText().']]';
$found = true;
}
# Template cache array insertion
if( $found ) {
$this->mTemplates[$part1] = $text;
}
}
}
# Recursive parsing, escaping and link table handling
# Only for HTML output
if ( $nowiki && $found && $this->mOutputType == OT_HTML ) {
$text = wfEscapeWikiText( $text );
} elseif ( ($this->mOutputType == OT_HTML || $this->mOutputType == OT_WIKI) && $found && !$noparse) {
# Clean up argument array
$assocArgs = array();
$index = 1;
foreach( $args as $arg ) {
$eqpos = strpos( $arg, '=' );
if ( $eqpos === false ) {
$assocArgs[$index++] = $arg;
} else {
$name = trim( substr( $arg, 0, $eqpos ) );
$value = trim( substr( $arg, $eqpos+1 ) );
if ( $value === false ) {
$value = '';
}
if ( $name !== false ) {
$assocArgs[$name] = $value;
}
}
}
# Add a new element to the templace recursion path
$this->mTemplatePath[$part1] = 1;
$text = $this->strip( $text, $this->mStripState );
$text = Sanitizer::removeHTMLtags( $text );
$text = $this->replaceVariables( $text, $assocArgs );
# Resume the link cache and register the inclusion as a link
if ( $this->mOutputType == OT_HTML && !is_null( $title ) ) {
$wgLinkCache->addLinkObj( $title );
}
# If the template begins with a table or block-level
# element, it should be treated as beginning a new line.
if ($linestart !== '\n' && preg_match('/^({\\||:|;|#|\*)/', $text)) {
$text = "\n" . $text;
}
}
# Prune lower levels off the recursion check path
$this->mTemplatePath = $lastPathLevel;
if ( !$found ) {
wfProfileOut( $fname );
return $matches[0];
} else {
# replace ==section headers==
# XXX this needs to go away once we have a better parser.
if ( $this->mOutputType != OT_WIKI && $itcamefromthedatabase ) {
if( !is_null( $title ) )
$encodedname = base64_encode($title->getPrefixedDBkey());
else
$encodedname = base64_encode("");
$m = preg_split('/(^={1,6}.*?={1,6}\s*?$)/m', $text, -1,
PREG_SPLIT_DELIM_CAPTURE);
$text = '';
$nsec = 0;
for( $i = 0; $i < count($m); $i += 2 ) {
$text .= $m[$i];
if (!isset($m[$i + 1]) || $m[$i + 1] == "") continue;
$hl = $m[$i + 1];
if( strstr($hl, "<!--MWTEMPLATESECTION") ) {
$text .= $hl;
continue;
}
preg_match('/^(={1,6})(.*?)(={1,6})\s*?$/m', $hl, $m2);
$text .= $m2[1] . $m2[2] . "<!--MWTEMPLATESECTION="
. $encodedname . "&" . base64_encode("$nsec") . "-->" . $m2[3];
$nsec++;
}
}
}
# Prune lower levels off the recursion check path
$this->mTemplatePath = $lastPathLevel;
if ( !$found ) {
wfProfileOut( $fname );
return $matches[0];
} else {
wfProfileOut( $fname );
return $text;
}
}
/**
* Triple brace replacement -- used for template arguments
* @access private
*/
function argSubstitution( $matches ) {
$arg = trim( $matches[1] );
$text = $matches[0];
$inputArgs = end( $this->mArgStack );
if ( array_key_exists( $arg, $inputArgs ) ) {
$text = $inputArgs[$arg];
}
return $text;
}
/**
* Returns true if the function is allowed to include this entity
* @access private
*/
function incrementIncludeCount( $dbk ) {
if ( !array_key_exists( $dbk, $this->mIncludeCount ) ) {
$this->mIncludeCount[$dbk] = 0;
}
if ( ++$this->mIncludeCount[$dbk] <= MAX_INCLUDE_REPEAT ) {
return true;
} else {
return false;
}
}
/**
* This function accomplishes several tasks:
* 1) Auto-number headings if that option is enabled
* 2) Add an [edit] link to sections for logged in users who have enabled the option
* 3) Add a Table of contents on the top for users who have enabled the option
* 4) Auto-anchor headings
*
* It loops through all headlines, collects the necessary data, then splits up the
* string and re-inserts the newly formatted headlines.
*
* @param string $text
* @param boolean $isMain
* @access private
*/
function formatHeadings( $text, $isMain=true ) {
global $wgInputEncoding, $wgMaxTocLevel, $wgContLang, $wgLinkHolders, $wgInterwikiLinkHolders;
$doNumberHeadings = $this->mOptions->getNumberHeadings();
$doShowToc = $this->mOptions->getShowToc();
$forceTocHere = false;
if( !$this->mTitle->userCanEdit() ) {
$showEditLink = 0;
$rightClickHack = 0;
} else {
$showEditLink = $this->mOptions->getEditSection();
$rightClickHack = $this->mOptions->getEditSectionOnRightClick();
}
# Inhibit editsection links if requested in the page
$esw =& MagicWord::get( MAG_NOEDITSECTION );
if( $esw->matchAndRemove( $text ) ) {
$showEditLink = 0;
}
# if the string __NOTOC__ (not case-sensitive) occurs in the HTML,
# do not add TOC
$mw =& MagicWord::get( MAG_NOTOC );
if( $mw->matchAndRemove( $text ) ) {
$doShowToc = 0;
}
# never add the TOC to the Main Page. This is an entry page that should not
# be more than 1-2 screens large anyway
if( $this->mTitle->getPrefixedText() == wfMsg('mainpage') ) {
$doShowToc = 0;
}
# Get all headlines for numbering them and adding funky stuff like [edit]
# links - this is for later, but we need the number of headlines right now
$numMatches = preg_match_all( '/<H([1-6])(.*?'.'>)(.*?)<\/H[1-6] *>/i', $text, $matches );
# if there are fewer than 4 headlines in the article, do not show TOC
if( $numMatches < 4 ) {
$doShowToc = 0;
}
# if the string __TOC__ (not case-sensitive) occurs in the HTML,
# override above conditions and always show TOC at that place
$mw =& MagicWord::get( MAG_TOC );
if($mw->match( $text ) ) {
$doShowToc = 1;
$forceTocHere = true;
} else {
# if the string __FORCETOC__ (not case-sensitive) occurs in the HTML,
# override above conditions and always show TOC above first header
$mw =& MagicWord::get( MAG_FORCETOC );
if ($mw->matchAndRemove( $text ) ) {
$doShowToc = 1;
}
}
# Never ever show TOC if no headers
if( $numMatches < 1 ) {
$doShowToc = 0;
}
# We need this to perform operations on the HTML
$sk =& $this->mOptions->getSkin();
# headline counter
$headlineCount = 0;
$sectionCount = 0; # headlineCount excluding template sections
# Ugh .. the TOC should have neat indentation levels which can be
# passed to the skin functions. These are determined here
$toc = '';
$full = '';
$head = array();
$sublevelCount = array();
$levelCount = array();
$toclevel = 0;
$level = 0;
$prevlevel = 0;
$toclevel = 0;
$prevtoclevel = 0;
foreach( $matches[3] as $headline ) {
$istemplate = 0;
$templatetitle = '';
$templatesection = 0;
$numbering = '';
if (preg_match("/<!--MWTEMPLATESECTION=([^&]+)&([^_]+)-->/", $headline, $mat)) {
$istemplate = 1;
$templatetitle = base64_decode($mat[1]);
$templatesection = 1 + (int)base64_decode($mat[2]);
$headline = preg_replace("/<!--MWTEMPLATESECTION=([^&]+)&([^_]+)-->/", "", $headline);
}
if( $toclevel ) {
$prevlevel = $level;
$prevtoclevel = $toclevel;
}
$level = $matches[1][$headlineCount];
if( $doNumberHeadings || $doShowToc ) {
if ( $level > $prevlevel ) {
# Increase TOC level
$toclevel++;
$sublevelCount[$toclevel] = 0;
$toc .= $sk->tocIndent();
}
elseif ( $level < $prevlevel && $toclevel > 1 ) {
# Decrease TOC level, find level to jump to
if ( $toclevel == 2 && $level <= $levelCount[1] ) {
# Can only go down to level 1
$toclevel = 1;
} else {
for ($i = $toclevel; $i > 0; $i--) {
if ( $levelCount[$i] == $level ) {
# Found last matching level
$toclevel = $i;
break;
}
elseif ( $levelCount[$i] < $level ) {
# Found first matching level below current level
$toclevel = $i + 1;
break;
}
}
}
$toc .= $sk->tocUnindent( $prevtoclevel - $toclevel );
}
else {
# No change in level, end TOC line
$toc .= $sk->tocLineEnd();
}
$levelCount[$toclevel] = $level;
# count number of headlines for each level
@$sublevelCount[$toclevel]++;
$dot = 0;
for( $i = 1; $i <= $toclevel; $i++ ) {
if( !empty( $sublevelCount[$i] ) ) {
if( $dot ) {
$numbering .= '.';
}
$numbering .= $wgContLang->formatNum( $sublevelCount[$i] );
$dot = 1;
}
}
}
# The canonized header is a version of the header text safe to use for links
# Avoid insertion of weird stuff like <math> by expanding the relevant sections
$canonized_headline = $this->unstrip( $headline, $this->mStripState );
$canonized_headline = $this->unstripNoWiki( $canonized_headline, $this->mStripState );
# Remove link placeholders by the link text.
# <!--LINK number-->
# turns into
# link text with suffix
$canonized_headline = preg_replace( '/<!--LINK ([0-9]*)-->/e',
"\$wgLinkHolders['texts'][\$1]",
$canonized_headline );
$canonized_headline = preg_replace( '/<!--IWLINK ([0-9]*)-->/e',
"\$wgInterwikiLinkHolders[\$1]",
$canonized_headline );
# strip out HTML
$canonized_headline = preg_replace( '/<.*?' . '>/','',$canonized_headline );
$tocline = trim( $canonized_headline );
$canonized_headline = urlencode( do_html_entity_decode( str_replace(' ', '_', $tocline), ENT_COMPAT, $wgInputEncoding ) );
$replacearray = array(
'%3A' => ':',
'%' => '.'
);
$canonized_headline = str_replace(array_keys($replacearray),array_values($replacearray),$canonized_headline);
$refer[$headlineCount] = $canonized_headline;
# count how many in assoc. array so we can track dupes in anchors
@$refers[$canonized_headline]++;
$refcount[$headlineCount]=$refers[$canonized_headline];
# Don't number the heading if it is the only one (looks silly)
if( $doNumberHeadings && count( $matches[3] ) > 1) {
# the two are different if the line contains a link
$headline=$numbering . ' ' . $headline;
}
# Create the anchor for linking from the TOC to the section
$anchor = $canonized_headline;
if($refcount[$headlineCount] > 1 ) {
$anchor .= '_' . $refcount[$headlineCount];
}
if( $doShowToc && ( !isset($wgMaxTocLevel) || $toclevel<$wgMaxTocLevel ) ) {
$toc .= $sk->tocLine($anchor, $tocline, $numbering, $toclevel);
}
if( $showEditLink && ( !$istemplate || $templatetitle !== "" ) ) {
if ( empty( $head[$headlineCount] ) ) {
$head[$headlineCount] = '';
}
if( $istemplate )
$head[$headlineCount] .= $sk->editSectionLinkForOther($templatetitle, $templatesection);
else
$head[$headlineCount] .= $sk->editSectionLink($this->mTitle, $sectionCount+1);
}
# Add the edit section span
if( $rightClickHack ) {
if( $istemplate )
$headline = $sk->editSectionScriptForOther($templatetitle, $templatesection, $headline);
else
$headline = $sk->editSectionScript($this->mTitle, $sectionCount+1,$headline);
}
# give headline the correct <h#> tag
@$head[$headlineCount] .= "<a name=\"$anchor\"></a><h".$level.$matches[2][$headlineCount] .$headline.'</h'.$level.'>';
$headlineCount++;
if( !$istemplate )
$sectionCount++;
}
if( $doShowToc ) {
$toclines = $headlineCount;
$toc .= $sk->tocUnindent( $toclevel - 1 );
$toc = $sk->tocList( $toc );
}
# split up and insert constructed headlines
$blocks = preg_split( '/<H[1-6].*?' . '>.*?<\/H[1-6]>/i', $text );
$i = 0;
foreach( $blocks as $block ) {
if( $showEditLink && $headlineCount > 0 && $i == 0 && $block != "\n" ) {
# This is the [edit] link that appears for the top block of text when
# section editing is enabled
# Disabled because it broke block formatting
# For example, a bullet point in the top line
# $full .= $sk->editSectionLink(0);
}
$full .= $block;
if( $doShowToc && !$i && $isMain && !$forceTocHere) {
# Top anchor now in skin
$full = $full.$toc;
}
if( !empty( $head[$i] ) ) {
$full .= $head[$i];
}
$i++;
}
if($forceTocHere) {
$mw =& MagicWord::get( MAG_TOC );
return $mw->replace( $toc, $full );
} else {
return $full;
}
}
/**
* Return an HTML link for the "ISBN 123456" text
* @access private
*/
function magicISBN( $text ) {
global $wgLang;
$fname = 'Parser::magicISBN';
wfProfileIn( $fname );
$a = split( 'ISBN ', ' '.$text );
if ( count ( $a ) < 2 ) {
wfProfileOut( $fname );
return $text;
}
$text = substr( array_shift( $a ), 1);
$valid = '0123456789-ABCDEFGHIJKLMNOPQRSTUVWXYZ';
foreach ( $a as $x ) {
$isbn = $blank = '' ;
while ( ' ' == $x{0} ) {
$blank .= ' ';
$x = substr( $x, 1 );
}
if ( $x == '' ) { # blank isbn
$text .= "ISBN $blank";
continue;
}
while ( strstr( $valid, $x{0} ) != false ) {
$isbn .= $x{0};
$x = substr( $x, 1 );
}
$num = str_replace( '-', '', $isbn );
$num = str_replace( ' ', '', $num );
if ( '' == $num ) {
$text .= "ISBN $blank$x";
} else {
$titleObj = Title::makeTitle( NS_SPECIAL, 'Booksources' );
$text .= '<a href="' .
$titleObj->escapeLocalUrl( 'isbn='.$num ) .
"\" class=\"internal\">ISBN $isbn</a>";
$text .= $x;
}
}
wfProfileOut( $fname );
return $text;
}
/**
* Return an HTML link for the "RFC 1234" text
* @access private
* @param string $text text to be processed
*/
function magicRFC( $text, $keyword='RFC ', $urlmsg='rfcurl' ) {
global $wgLang;
$valid = '0123456789';
$internal = false;
$a = split( $keyword, ' '.$text );
if ( count ( $a ) < 2 ) {
return $text;
}
$text = substr( array_shift( $a ), 1);
/* Check if keyword is preceed by [[.
* This test is made here cause of the array_shift above
* that prevent the test to be done in the foreach.
*/
if ( substr( $text, -2 ) == '[[' ) {
$internal = true;
}
foreach ( $a as $x ) {
/* token might be empty if we have RFC RFC 1234 */
if ( $x=='' ) {
$text.=$keyword;
continue;
}
$id = $blank = '' ;
/** remove and save whitespaces in $blank */
while ( $x{0} == ' ' ) {
$blank .= ' ';
$x = substr( $x, 1 );
}
/** remove and save the rfc number in $id */
while ( strstr( $valid, $x{0} ) != false ) {
$id .= $x{0};
$x = substr( $x, 1 );
}
if ( $id == '' ) {
/* call back stripped spaces*/
$text .= $keyword.$blank.$x;
} elseif( $internal ) {
/* normal link */
$text .= $keyword.$id.$x;
} else {
/* build the external link*/
$url = wfmsg( $urlmsg );
$url = str_replace( '$1', $id, $url);
$sk =& $this->mOptions->getSkin();
$la = $sk->getExternalLinkAttributes( $url, $keyword.$id );
$text .= "<a href='{$url}'{$la}>{$keyword}{$id}</a>{$x}";
}
/* Check if the next RFC keyword is preceed by [[ */
$internal = ( substr($x,-2) == '[[' );
}
return $text;
}
/**
* Transform wiki markup when saving a page by doing \r\n -> \n
* conversion, substitting signatures, {{subst:}} templates, etc.
*
* @param string $text the text to transform
* @param Title &$title the Title object for the current article
* @param User &$user the User object describing the current user
* @param ParserOptions $options parsing options
* @param bool $clearState whether to clear the parser state first
* @return string the altered wiki markup
* @access public
*/
function preSaveTransform( $text, &$title, &$user, $options, $clearState = true ) {
$this->mOptions = $options;
$this->mTitle =& $title;
$this->mOutputType = OT_WIKI;
if ( $clearState ) {
$this->clearState();
}
$stripState = false;
$pairs = array(
"\r\n" => "\n",
);
$text = str_replace( array_keys( $pairs ), array_values( $pairs ), $text );
$text = $this->strip( $text, $stripState, false );
$text = $this->pstPass2( $text, $user );
$text = $this->unstrip( $text, $stripState );
$text = $this->unstripNoWiki( $text, $stripState );
return $text;
}
/**
* Pre-save transform helper function
* @access private
*/
function pstPass2( $text, &$user ) {
global $wgLang, $wgContLang, $wgLocaltimezone;
# Variable replacement
# Because mOutputType is OT_WIKI, this will only process {{subst:xxx}} type tags
$text = $this->replaceVariables( $text );
# Signatures
#
$n = $user->getName();
$k = $user->getOption( 'nickname' );
if ( '' == $k ) { $k = $n; }
if ( isset( $wgLocaltimezone ) ) {
$oldtz = getenv( 'TZ' );
putenv( 'TZ='.$wgLocaltimezone );
}
/* Note: this is an ugly timezone hack for the European wikis */
$d = $wgContLang->timeanddate( date( 'YmdHis' ), false ) .
' (' . date( 'T' ) . ')';
if ( isset( $wgLocaltimezone ) ) {
putenv( 'TZ='.$oldtzs );
}
if( $user->getOption( 'fancysig' ) ) {
$sigText = $k;
} else {
$sigText = '[[' . $wgContLang->getNsText( NS_USER ) . ":$n|$k]]";
}
$text = preg_replace( '/~~~~~/', $d, $text );
$text = preg_replace( '/~~~~/', "$sigText $d", $text );
$text = preg_replace( '/~~~/', $sigText, $text );
# Context links: [[|name]] and [[name (context)|]]
#
$tc = "[&;%\\-,.\\(\\)' _0-9A-Za-z\\/:\\x80-\\xff]";
$np = "[&;%\\-,.' _0-9A-Za-z\\/:\\x80-\\xff]"; # No parens
$namespacechar = '[ _0-9A-Za-z\x80-\xff]'; # Namespaces can use non-ascii!
$conpat = "/^({$np}+) \\(({$tc}+)\\)$/";
$p1 = "/\[\[({$np}+) \\(({$np}+)\\)\\|]]/"; # [[page (context)|]]
$p2 = "/\[\[\\|({$tc}+)]]/"; # [[|page]]
$p3 = "/\[\[(:*$namespacechar+):({$np}+)\\|]]/"; # [[namespace:page|]] and [[:namespace:page|]]
$p4 = "/\[\[(:*$namespacechar+):({$np}+) \\(({$np}+)\\)\\|]]/"; # [[ns:page (cont)|]] and [[:ns:page (cont)|]]
$context = '';
$t = $this->mTitle->getText();
if ( preg_match( $conpat, $t, $m ) ) {
$context = $m[2];
}
$text = preg_replace( $p4, '[[\\1:\\2 (\\3)|\\2]]', $text );
$text = preg_replace( $p1, '[[\\1 (\\2)|\\1]]', $text );
$text = preg_replace( $p3, '[[\\1:\\2|\\2]]', $text );
if ( '' == $context ) {
$text = preg_replace( $p2, '[[\\1]]', $text );
} else {
$text = preg_replace( $p2, "[[\\1 ({$context})|\\1]]", $text );
}
# Trim trailing whitespace
# MAG_END (__END__) tag allows for trailing
# whitespace to be deliberately included
$text = rtrim( $text );
$mw =& MagicWord::get( MAG_END );
$mw->matchAndRemove( $text );
return $text;
}
/**
* Set up some variables which are usually set up in parse()
* so that an external function can call some class members with confidence
* @access public
*/
function startExternalParse( &$title, $options, $outputType, $clearState = true ) {
$this->mTitle =& $title;
$this->mOptions = $options;
$this->mOutputType = $outputType;
if ( $clearState ) {
$this->clearState();
}
}
/**
* Transform a MediaWiki message by replacing magic variables.
*
* @param string $text the text to transform
* @param ParserOptions $options options
* @return string the text with variables substituted
* @access public
*/
function transformMsg( $text, $options ) {
global $wgTitle;
static $executing = false;
# Guard against infinite recursion
if ( $executing ) {
return $text;
}
$executing = true;
$this->mTitle = $wgTitle;
$this->mOptions = $options;
$this->mOutputType = OT_MSG;
$this->clearState();
$text = $this->replaceVariables( $text );
$executing = false;
return $text;
}
/**
* Create an HTML-style tag, e.g. <yourtag>special text</yourtag>
* Callback will be called with the text within
* Transform and return the text within
* @access public
*/
function setHook( $tag, $callback ) {
$oldVal = @$this->mTagHooks[$tag];
$this->mTagHooks[$tag] = $callback;
return $oldVal;
}
/**
* Replace <!--LINK--> link placeholders with actual links, in the buffer
* Placeholders created in Skin::makeLinkObj()
* Returns an array of links found, indexed by PDBK:
* 0 - broken
* 1 - normal link
* 2 - stub
* $options is a bit field, RLH_FOR_UPDATE to select for update
*/
function replaceLinkHolders( &$text, $options = 0 ) {
global $wgUser, $wgLinkCache, $wgUseOldExistenceCheck, $wgLinkHolders;
global $wgInterwikiLinkHolders;
global $outputReplace;
if ( $wgUseOldExistenceCheck ) {
return array();
}
$fname = 'Parser::replaceLinkHolders';
wfProfileIn( $fname );
$pdbks = array();
$colours = array();
#if ( !empty( $tmpLinks[0] ) ) { #TODO
if ( !empty( $wgLinkHolders['namespaces'] ) ) {
wfProfileIn( $fname.'-check' );
$dbr =& wfGetDB( DB_SLAVE );
$page = $dbr->tableName( 'page' );
$sk = $wgUser->getSkin();
$threshold = $wgUser->getOption('stubthreshold');
# Sort by namespace
asort( $wgLinkHolders['namespaces'] );
# Generate query
$query = false;
foreach ( $wgLinkHolders['namespaces'] as $key => $val ) {
# Make title object
$title = $wgLinkHolders['titles'][$key];
# Skip invalid entries.
# Result will be ugly, but prevents crash.
if ( is_null( $title ) ) {
continue;
}
$pdbk = $pdbks[$key] = $title->getPrefixedDBkey();
# Check if it's in the link cache already
if ( $wgLinkCache->getGoodLinkID( $pdbk ) ) {
$colours[$pdbk] = 1;
} elseif ( $wgLinkCache->isBadLink( $pdbk ) ) {
$colours[$pdbk] = 0;
} else {
# Not in the link cache, add it to the query
if ( !isset( $current ) ) {
$current = $val;
$tables = $page;
$join = '';
$query = "SELECT page_id, page_namespace, page_title";
if ( $threshold > 0 ) {
$textTable = $dbr->tableName( 'text' );
$query .= ', LENGTH(old_text) AS page_len, page_is_redirect';
$tables .= ", $textTable";
$join = 'page_latest=old_id AND';
}
$query .= " FROM $tables WHERE $join (page_namespace=$val AND page_title IN(";
} elseif ( $current != $val ) {
$current = $val;
$query .= ")) OR (page_namespace=$val AND page_title IN(";
} else {
$query .= ', ';
}
$query .= $dbr->addQuotes( $wgLinkHolders['dbkeys'][$key] );
}
}
if ( $query ) {
$query .= '))';
if ( $options & RLH_FOR_UPDATE ) {
$query .= ' FOR UPDATE';
}
$res = $dbr->query( $query, $fname );
# Fetch data and form into an associative array
# non-existent = broken
# 1 = known
# 2 = stub
while ( $s = $dbr->fetchObject($res) ) {
$title = Title::makeTitle( $s->page_namespace, $s->page_title );
$pdbk = $title->getPrefixedDBkey();
$wgLinkCache->addGoodLink( $s->page_id, $pdbk );
if ( $threshold > 0 ) {
$size = $s->page_len;
if ( $s->page_is_redirect || $s->page_namespace != 0 || $size >= $threshold ) {
$colours[$pdbk] = 1;
} else {
$colours[$pdbk] = 2;
}
} else {
$colours[$pdbk] = 1;
}
}
}
wfProfileOut( $fname.'-check' );
# Construct search and replace arrays
wfProfileIn( $fname.'-construct' );
$outputReplace = array();
foreach ( $wgLinkHolders['namespaces'] as $key => $ns ) {
$pdbk = $pdbks[$key];
$searchkey = '<!--LINK '.$key.'-->';
$title = $wgLinkHolders['titles'][$key];
if ( empty( $colours[$pdbk] ) ) {
$wgLinkCache->addBadLink( $pdbk );
$colours[$pdbk] = 0;
$outputReplace[$searchkey] = $sk->makeBrokenLinkObj( $title,
$wgLinkHolders['texts'][$key],
$wgLinkHolders['queries'][$key] );
} elseif ( $colours[$pdbk] == 1 ) {
$outputReplace[$searchkey] = $sk->makeKnownLinkObj( $title,
$wgLinkHolders['texts'][$key],
$wgLinkHolders['queries'][$key] );
} elseif ( $colours[$pdbk] == 2 ) {
$outputReplace[$searchkey] = $sk->makeStubLinkObj( $title,
$wgLinkHolders['texts'][$key],
$wgLinkHolders['queries'][$key] );
}
}
wfProfileOut( $fname.'-construct' );
# Do the thing
wfProfileIn( $fname.'-replace' );
$text = preg_replace_callback(
'/(<!--LINK .*?-->)/',
"outputReplaceMatches",
$text);
wfProfileOut( $fname.'-replace' );
}
if ( !empty( $wgInterwikiLinkHolders ) ) {
wfProfileIn( $fname.'-interwiki' );
$outputReplace = $wgInterwikiLinkHolders;
$text = preg_replace_callback(
'/<!--IWLINK (.*?)-->/',
"outputReplaceMatches",
$text );
wfProfileOut( $fname.'-interwiki' );
}
wfProfileOut( $fname );
return $colours;
}
/**
* Renders an image gallery from a text with one line per image.
* text labels may be given by using |-style alternative text. E.g.
* Image:one.jpg|The number "1"
* Image:tree.jpg|A tree
* given as text will return the HTML of a gallery with two images,
* labeled 'The number "1"' and
* 'A tree'.
*/
function renderImageGallery( $text ) {
global $wgLinkCache;
$ig = new ImageGallery();
$ig->setShowBytes( false );
$ig->setShowFilename( false );
$lines = explode( "\n", $text );
foreach ( $lines as $line ) {
# match lines like these:
# Image:someimage.jpg|This is some image
preg_match( "/^([^|]+)(\\|(.*))?$/", $line, $matches );
# Skip empty lines
if ( count( $matches ) == 0 ) {
continue;
}
$nt = Title::newFromURL( $matches[1] );
if( is_null( $nt ) ) {
# Bogus title. Ignore these so we don't bomb out later.
continue;
}
if ( isset( $matches[3] ) ) {
$label = $matches[3];
} else {
$label = '';
}
# FIXME: Use the full wiki parser and add its links
# to the page's links.
$html = $this->mOptions->mSkin->formatComment( $label );
$ig->add( Image::newFromTitle( $nt ), $html );
$wgLinkCache->addImageLinkObj( $nt );
}
return $ig->toHTML();
}
}
/**
* @todo document
* @package MediaWiki
*/
class ParserOutput
{
var $mText, $mLanguageLinks, $mCategoryLinks, $mContainsOldMagic;
var $mCacheTime; # Used in ParserCache
var $mVersion; # Compatibility check
function ParserOutput( $text = '', $languageLinks = array(), $categoryLinks = array(),
$containsOldMagic = false )
{
$this->mText = $text;
$this->mLanguageLinks = $languageLinks;
$this->mCategoryLinks = $categoryLinks;
$this->mContainsOldMagic = $containsOldMagic;
$this->mCacheTime = '';
$this->mVersion = MW_PARSER_VERSION;
}
function getText() { return $this->mText; }
function getLanguageLinks() { return $this->mLanguageLinks; }
function getCategoryLinks() { return array_keys( $this->mCategoryLinks ); }
function getCacheTime() { return $this->mCacheTime; }
function containsOldMagic() { return $this->mContainsOldMagic; }
function setText( $text ) { return wfSetVar( $this->mText, $text ); }
function setLanguageLinks( $ll ) { return wfSetVar( $this->mLanguageLinks, $ll ); }
function setCategoryLinks( $cl ) { return wfSetVar( $this->mCategoryLinks, $cl ); }
function setContainsOldMagic( $com ) { return wfSetVar( $this->mContainsOldMagic, $com ); }
function setCacheTime( $t ) { return wfSetVar( $this->mCacheTime, $t ); }
function addCategoryLink( $c ) { $this->mCategoryLinks[$c] = 1; }
function merge( $other ) {
$this->mLanguageLinks = array_merge( $this->mLanguageLinks, $other->mLanguageLinks );
$this->mCategoryLinks = array_merge( $this->mCategoryLinks, $this->mLanguageLinks );
$this->mContainsOldMagic = $this->mContainsOldMagic || $other->mContainsOldMagic;
}
/**
* Return true if this cached output object predates the global or
* per-article cache invalidation timestamps, or if it comes from
* an incompatible older version.
*
* @param string $touched the affected article's last touched timestamp
* @return bool
* @access public
*/
function expired( $touched ) {
global $wgCacheEpoch;
return $this->getCacheTime() <= $touched ||
$this->getCacheTime() <= $wgCacheEpoch ||
!isset( $this->mVersion ) ||
version_compare( $this->mVersion, MW_PARSER_VERSION, "lt" );
}
}
/**
* Set options of the Parser
* @todo document
* @package MediaWiki
*/
class ParserOptions
{
# All variables are private
var $mUseTeX; # Use texvc to expand <math> tags
var $mUseDynamicDates; # Use $wgDateFormatter to format dates
var $mInterwikiMagic; # Interlanguage links are removed and returned in an array
var $mAllowExternalImages; # Allow external images inline
var $mSkin; # Reference to the preferred skin
var $mDateFormat; # Date format index
var $mEditSection; # Create "edit section" links
var $mEditSectionOnRightClick; # Generate JavaScript to edit section on right click
var $mNumberHeadings; # Automatically number headings
var $mShowToc; # Show table of contents
function getUseTeX() { return $this->mUseTeX; }
function getUseDynamicDates() { return $this->mUseDynamicDates; }
function getInterwikiMagic() { return $this->mInterwikiMagic; }
function getAllowExternalImages() { return $this->mAllowExternalImages; }
function getSkin() { return $this->mSkin; }
function getDateFormat() { return $this->mDateFormat; }
function getEditSection() { return $this->mEditSection; }
function getEditSectionOnRightClick() { return $this->mEditSectionOnRightClick; }
function getNumberHeadings() { return $this->mNumberHeadings; }
function getShowToc() { return $this->mShowToc; }
function setUseTeX( $x ) { return wfSetVar( $this->mUseTeX, $x ); }
function setUseDynamicDates( $x ) { return wfSetVar( $this->mUseDynamicDates, $x ); }
function setInterwikiMagic( $x ) { return wfSetVar( $this->mInterwikiMagic, $x ); }
function setAllowExternalImages( $x ) { return wfSetVar( $this->mAllowExternalImages, $x ); }
function setDateFormat( $x ) { return wfSetVar( $this->mDateFormat, $x ); }
function setEditSection( $x ) { return wfSetVar( $this->mEditSection, $x ); }
function setEditSectionOnRightClick( $x ) { return wfSetVar( $this->mEditSectionOnRightClick, $x ); }
function setNumberHeadings( $x ) { return wfSetVar( $this->mNumberHeadings, $x ); }
function setShowToc( $x ) { return wfSetVar( $this->mShowToc, $x ); }
function setSkin( &$x ) { $this->mSkin =& $x; }
/**
* Get parser options
* @static
*/
function newFromUser( &$user ) {
$popts = new ParserOptions;
$popts->initialiseFromUser( $user );
return $popts;
}
/** Get user options */
function initialiseFromUser( &$userInput ) {
global $wgUseTeX, $wgUseDynamicDates, $wgInterwikiMagic, $wgAllowExternalImages;
$fname = 'ParserOptions::initialiseFromUser';
wfProfileIn( $fname );
if ( !$userInput ) {
$user = new User;
$user->setLoaded( true );
} else {
$user =& $userInput;
}
$this->mUseTeX = $wgUseTeX;
$this->mUseDynamicDates = $wgUseDynamicDates;
$this->mInterwikiMagic = $wgInterwikiMagic;
$this->mAllowExternalImages = $wgAllowExternalImages;
wfProfileIn( $fname.'-skin' );
$this->mSkin =& $user->getSkin();
wfProfileOut( $fname.'-skin' );
$this->mDateFormat = $user->getOption( 'date' );
$this->mEditSection = $user->getOption( 'editsection' );
$this->mEditSectionOnRightClick = $user->getOption( 'editsectiononrightclick' );
$this->mNumberHeadings = $user->getOption( 'numberheadings' );
$this->mShowToc = $user->getOption( 'showtoc' );
wfProfileOut( $fname );
}
}
/**
* Callback function used by Parser::replaceLinkHolders()
* to substitute link placeholders.
*/
function &outputReplaceMatches( $matches ) {
global $outputReplace;
return $outputReplace[$matches[1]];
}
/**
* Return the total number of articles
*/
function wfNumberOfArticles() {
global $wgNumberOfArticles;
wfLoadSiteStats();
return $wgNumberOfArticles;
}
/**
* Get various statistics from the database
* @private
*/
function wfLoadSiteStats() {
global $wgNumberOfArticles, $wgTotalViews, $wgTotalEdits;
$fname = 'wfLoadSiteStats';
if ( -1 != $wgNumberOfArticles ) return;
$dbr =& wfGetDB( DB_SLAVE );
$s = $dbr->selectRow( 'site_stats',
array( 'ss_total_views', 'ss_total_edits', 'ss_good_articles' ),
array( 'ss_row_id' => 1 ), $fname
);
if ( $s === false ) {
return;
} else {
$wgTotalViews = $s->ss_total_views;
$wgTotalEdits = $s->ss_total_edits;
$wgNumberOfArticles = $s->ss_good_articles;
}
}
/**
* Escape html tags
* Basicly replacing " > and < with HTML entities ( &quot;, &gt;, &lt;)
*
* @param string $in Text that might contain HTML tags
* @return string Escaped string
*/
function wfEscapeHTMLTagsOnly( $in ) {
return str_replace(
array( '"', '>', '<' ),
array( '&quot;', '&gt;', '&lt;' ),
$in );
}
?>

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