/**
* @param Text $text
* @param array $options
*/
public function processFencedCodeBlock(Text $text, array $options = [])
{
/** @noinspection PhpUnusedParameterInspection */
$text->replace('{
(?:\\n\\n|\\A)
(?:
([`~]{3})[ ]* #1 fence ` or ~
([a-zA-Z0-9]*?)? #2 language [optional]
\\n+
(.*?)\\n #3 code block
\\1 # matched #1
)
}smx', function (Text $w, Text $fence, Text $lang, Text $code) use($options) {
$rendererOptions = [];
if (!$lang->isEmpty()) {
if ($options['pygments'] && class_exists('KzykHys\\Pygments\\Pygments')) {
$pygments = new Pygments();
$html = $pygments->highlight($code, $lang, 'html');
return "\n\n" . $html . "\n\n";
}
$rendererOptions = ['attr' => ['class' => 'prettyprint lang-' . $lang->lower()]];
}
$code->escapeHtml(ENT_NOQUOTES);
$this->markdown->emit('detab', array($code));
$code->replace('/\\A\\n+/', '');
$code->replace('/\\s+\\z/', '');
return "\n\n" . $this->getRenderer()->renderCodeBlock($code, $rendererOptions) . "\n\n";
});
}
/**
* @param string $content
* @param string $language
* @param array $parameters
* @return string
*/
public function getOutputFor($content, $language, array $parameters = [])
{
$parser = new Pygments();
$styles = '';
if (isset($parameters['theme'])) {
$styles .= '<style>' . $parser->getCss($parameters['theme']) . '</style>';
}
return $styles . $parser->highlight($content, $language, 'html');
}
public function execute()
{
global $wgPygmentizePath;
$target = __DIR__ . '/../modules/pygments.generated.css';
$pygments = new Pygments($wgPygmentizePath);
$css = "/* Stylesheet generated by updateCSS.php */\n";
$css .= $pygments->getCss('default', '.' . SyntaxHighlight_GeSHi::HIGHLIGHT_CSS_CLASS);
if (file_put_contents($target, $css) === false) {
$this->output("Failed to write to {$target}\n");
} else {
$this->output('CSS written to ' . realpath($target) . "\n");
}
}
public function execute()
{
global $wgPygmentizePath;
function lang_filter($val)
{
return preg_match('/^[a-zA-Z0-9\\-_]+$/', $val);
}
$header = '// Generated by ' . basename(__FILE__) . "\n\n";
$pygments = new Pygments($wgPygmentizePath);
$lexers = array_keys($pygments->getLexers());
sort($lexers);
$code = "<?php\n" . $header . 'return ' . var_export($lexers, true) . ";\n";
$code = preg_replace('/(\\d+ \\=\\>| (?=\\())/i', '', $code);
$code = preg_replace("/^ +/m", "\t", $code);
file_put_contents(__DIR__ . '/../SyntaxHighlight_GeSHi.lexers.php', $code);
$this->output("Updated language list written to SyntaxHighlight_GeSHi.lexers.php\n");
}
public function testGuessLexer()
{
$pygments = new Pygments();
$this->assertEquals('php', $pygments->guessLexer('index.php'));
$this->assertEquals('go', $pygments->guessLexer('main.go'));
}
/**
* Highlight a code-block using a particular lexer.
*
* @param string $code Code to highlight.
* @param string|null $lang Language name, or null to use plain markup.
* @param array $args Associative array of additional arguments.
* If it contains a 'line' key, the output will include line numbers.
* If it includes a 'highlight' key, the value will be parsed as a
* comma-separated list of lines and line-ranges to highlight.
* If it contains a 'start' key, the value will be used as the line at which to
* start highlighting.
* If it contains a 'inline' key, the output will not be wrapped in `<div><pre/></div>`.
* @return Status Status object, with HTML representing the highlighted
* code as its value.
*/
protected static function highlight($code, $lang = null, $args = array())
{
global $wgPygmentizePath;
$status = new Status();
$lexer = self::getLexer($lang);
if ($lexer === null && $lang !== null) {
$status->warning('syntaxhighlight-error-unknown-language', $lang);
}
$length = strlen($code);
if (strlen($code) > self::HIGHLIGHT_MAX_BYTES) {
$status->warning('syntaxhighlight-error-exceeds-size-limit', $length, self::HIGHLIGHT_MAX_BYTES);
$lexer = null;
}
if (wfShellExecDisabled() !== false) {
$status->warning('syntaxhighlight-error-pygments-invocation-failure');
wfWarn('MediaWiki determined that it cannot invoke Pygments. ' . 'As a result, SyntaxHighlight_GeSHi will not perform any syntax highlighting. ' . 'See the debug log for details: ' . 'https://www.mediawiki.org/wiki/Manual:$wgDebugLogFile');
$lexer = null;
}
$inline = isset($args['inline']);
if ($lexer === null) {
if ($inline) {
$status->value = htmlspecialchars(trim($code), ENT_NOQUOTES);
} else {
$pre = Html::element('pre', array(), $code);
$status->value = Html::rawElement('div', array('class' => self::HIGHLIGHT_CSS_CLASS), $pre);
}
return $status;
}
$options = array('cssclass' => self::HIGHLIGHT_CSS_CLASS, 'encoding' => 'utf-8');
// Line numbers
if (isset($args['line'])) {
$options['linenos'] = 'inline';
}
if ($lexer === 'php' && strpos($code, '<?php') === false) {
$options['startinline'] = 1;
}
// Highlight specific lines
if (isset($args['highlight'])) {
$lines = self::parseHighlightLines($args['highlight']);
if (count($lines)) {
$options['hl_lines'] = implode(' ', $lines);
}
}
// Starting line number
if (isset($args['start'])) {
$options['linenostart'] = $args['start'];
}
if ($inline) {
$options['nowrap'] = 1;
}
$cache = wfGetMainCache();
$cacheKey = self::makeCacheKey($code, $lexer, $options);
$output = $cache->get($cacheKey);
if ($output === false) {
try {
$pygments = new Pygments($wgPygmentizePath);
$output = $pygments->highlight($code, $lexer, 'html', $options);
} catch (RuntimeException $e) {
$status->warning('syntaxhighlight-error-pygments-invocation-failure');
wfWarn('Failed to invoke Pygments. Please check that Pygments is installed ' . 'and that $wgPygmentizePath is accurate.');
$status->value = self::highlight($code, null, $args)->getValue();
return $status;
}
$cache->set($cacheKey, $output);
}
if ($inline) {
$output = trim($output);
}
$status->value = $output;
return $status;
}
