public static function do_highlight($in)
{
// Look, ma! No Regex!
$tokenizer = new HTMLTokenizer($in, false);
$tokens = $tokenizer->parse();
// fetch div, pre, code slices that have a class="highlight"
$slices = $tokens->slice(array('div', 'pre', 'code'), array('class' => 'highlight'));
// iterate the found slices
foreach ($slices as $slice) {
// store the class to use once we've stripped the container
$classAttr = $slice[0]['attrs']['class'];
// unique name to use in the cache for this slice/markup
$sliceCacheName = 'plugin.highlight.' . md5((string) $slice) . filemtime(__FILE__);
// trim off the div, and determine the value
$slice->trim_container();
$sliceValue = trim((string) $slice);
// see if it's already been cached
if (Cache::has($sliceCacheName)) {
$output = Cache::get($sliceCacheName);
} else {
// trim off the CDATA wrapper, if applicable
if (substr($sliceValue, 0, 9) == '<![CDATA[' && substr($sliceValue, -3) == ']]>') {
$sliceValue = substr($sliceValue, 9, -3);
}
$classes = array_filter(explode(' ', trim(str_replace('highlight', '', $classAttr))));
// ugly, refactor
$geshi = new Geshi(trim($sliceValue), isset($classes[0]) ? $classes[0] : 'php', HighlightPlugin::$geshi_path . '/geshi/');
$geshi->set_header_type(GESHI_HEADER_PRE);
$geshi->set_overall_class('geshicode');
$output = @$geshi->parse_code();
// @ is slow, but geshi is full of E_NOTICE
Cache::set($sliceCacheName, $output);
}
$slice->tokenize_replace($output);
$tokens->replace_slice($slice);
}
return (string) $tokens;
}
/**
* Helper function for overriding some GeSHi defaults.
*
* @param \Geshi $geshi
* Geshi object.
* @param string $langcode
* The language.
*/
public static function overrideGeshiDefaults(\Geshi &$geshi, $langcode)
{
$config = \Drupal::config('geshifilter.settings');
// Override the some default GeSHi styles (e.g. GeSHi uses Courier by
// default, which is ugly).
$geshi->set_line_style('font-family: monospace; font-weight: normal;', 'font-family: monospace; font-weight: bold; font-style: italic;');
$geshi->set_code_style('font-family: monospace; font-weight: normal; font-style: normal');
// Overall class needed for CSS.
$geshi->set_overall_class('geshifilter-' . $langcode);
// Set keyword linking.
$geshi->enable_keyword_links($config->get('enable_keyword_urls', TRUE));
}
