' .
substr( $out, strlen( $m[0] ) );
}
$output = $context->getOutput();
$output->addModuleStyles( array( "ext.geshi.language.$lang", 'ext.geshi.local' ) );
$output->addHTML( "{$out}
" );
// Inform MediaWiki that we have parsed this page and it shouldn't mess with it.
return false;
}
}
// Bottle out
return true;
}
/**
* Initialise a GeSHi object to format some code, performing
* common setup for all our uses of it
*
* @param string $text
* @param string $lang
* @return GeSHi
*/
public static function prepare( $text, $lang ) {
global $wgSyntaxHighlightKeywordLinks;
self::initialise();
$geshi = new GeSHi( $text, $lang );
if ( $geshi->error() == GESHI_ERROR_NO_SUCH_LANG ) {
return null;
}
$geshi->set_encoding( 'UTF-8' );
$geshi->enable_classes();
$geshi->set_overall_class( "source-$lang" );
$geshi->enable_keyword_links( $wgSyntaxHighlightKeywordLinks );
// If the source code is over 100 kB, disable higlighting of symbols.
// If over 200 kB, disable highlighting of strings too.
$bytes = strlen( $text );
if ( $bytes > 102400 ) {
$geshi->set_symbols_highlighting( false );
if ( $bytes > 204800 ) {
$geshi->set_strings_highlighting( false );
}
}
/**
* GeSHi comes by default with a font-family set to monospace, which
* causes the font-size to be smaller than one would expect.
* We append a CSS hack to the default GeSHi styles: specifying 'monospace'
* twice "resets" the browser font-size specified for monospace.
*
* The hack is documented in MediaWiki core under
* docs/uidesign/monospace.html and in bug 33496.
*/
// Preserve default since we don't want to override the other style
// properties set by geshi (padding, font-size, vertical-align etc.)
$geshi->set_code_style(
'font-family: monospace, monospace;',
/* preserve defaults = */ true
);
// No need to preserve default (which is just "font-family: monospace;")
// outputting both is unnecessary
$geshi->set_overall_style(
'font-family: monospace, monospace;',
/* preserve defaults = */ false
);
return $geshi;
}
/**
* Prepare a CSS snippet suitable for use as a ParserOutput/OutputPage
* head item.
*
* Not used anymore, kept for backwards-compatibility with other extensions.
*
* @deprecated
* @param GeSHi $geshi
* @return string
*/
public static function buildHeadItem( $geshi ) {
wfDeprecated( __METHOD__ );
$css = array();
$css[] = '';
return implode( "\n", $css );
}
/**
* Get the complete CSS code necessary to display styles for given GeSHi instance.
*
* @param GeSHi $geshi
* @return string
*/
public static function getCSS( $geshi ) {
$lang = $geshi->language;
$css = array();
$css[] = ".source-$lang {line-height: normal;}";
$css[] = ".source-$lang li, .source-$lang pre {";
$css[] = "\tline-height: normal; border: 0px none white;";
$css[] = "}";
$css[] = $geshi->get_stylesheet( /*$economy_mode*/ false );
return implode( "\n", $css );
}
/**
* Format an 'unknown language' error message and append formatted
* plain text to it.
*
* @param string $text
* @return string HTML fragment
*/
private static function formatLanguageError( $text ) {
$msg = wfMessage( 'syntaxhighlight-err-language' )->inContentLanguage()->escaped();
$error = self::formatError( $msg, $text );
return $error . '' . htmlspecialchars( $text ) . '
';
}
/**
* Format an error message
*
* @param string $error
* @return string
*/
private static function formatError( $error = '' ) {
$html = '';
if ( $error ) {
$html .= "{$error}
";
}
$html .= '' . wfMessage( 'syntaxhighlight-specify')->inContentLanguage()->escaped()
. ' <source lang="html4strict">...</source>
'
. '' . wfMessage( 'syntaxhighlight-supported' )->inContentLanguage()->escaped()
. '
' . self::formatLanguages();
return "{$html}
";
}
/**
* Format the list of supported languages
*
* @return string
*/
private static function formatLanguages() {
$langs = self::getSupportedLanguages();
$list = array();
if ( count( $langs ) > 0 ) {
foreach ( $langs as $lang ) {
$list[] = '' . htmlspecialchars( $lang ) . '';
}
return '' . implode( ', ', $list ) . '
';
} else {
return '' . wfMessage( 'syntaxhighlight-err-loading' )->inContentLanguage()->escaped() . '
';
}
}
/**
* Get the list of supported languages
*
* @return array
*/
private static function getSupportedLanguages() {
global $wgGeSHiSupportedLanguages;
self::initialise();
return $wgGeSHiSupportedLanguages;
}
/**
* Initialise messages and ensure the GeSHi class is loaded
* @return bool
*/
private static function initialise() {
if ( !self::$initialised ) {
if ( !class_exists( 'GeSHi' ) ) {
require ( dirname( __FILE__ ) . '/geshi/geshi.php' );
}
self::$initialised = true;
}
return true;
}
/**
* Register a ResourceLoader module providing styles for each supported language.
*
* @param ResourceLoader $resourceLoader
* @return bool true
*/
public static function resourceLoaderRegisterModules( &$resourceLoader ) {
$modules = array();
foreach ( self::getSupportedLanguages() as $lang ) {
$modules["ext.geshi.language.$lang" ] = array(
'position' => 'top',
'class' => 'ResourceLoaderGeSHiModule',
'lang' => $lang,
);
}
$resourceLoader->register( $modules );
return true;
}
}