/**
* Helper function for generating the CSS rules.
*
* @return string
* String with the CSS rules.
*/
public static function generateLanguagesCssRules()
{
$output = '';
$geshi_library = libraries_load('geshi');
if ($geshi_library['loaded']) {
$languages = GeshiFilter::getAvailableLanguages();
foreach ($languages as $langcode => $language_full_name) {
// Create GeSHi object.
$geshi = GeshiFilterProcess::geshiFactory('', $langcode);
GeshiFilterProcess::overrideGeshiDefaults($geshi, $langcode);
// Add CSS rules for current language.
$output .= $geshi->get_stylesheet(FALSE) . "\n";
// Release GeSHi object.
unset($geshi);
}
} else {
drupal_set_message(t('Error while generating CSS rules: could not load GeSHi library.'), 'error');
}
return $output;
}
/**
* {@inheritdoc}
*/
public static function overrideGeshiDefaults(\Geshi &$geshi, $langcode)
{
$config = \Drupal::config('geshifilter.settings');
parent::overrideGeshiDefaults($geshi, $langcode);
$geshi->enable_classes(TRUE);
$geshi->set_header_type((int) $config->get('code_container', GESHI_HEADER_PRE));
}
/**
* Assert function for testing if GeSHi highlighting works.
*
* @param string $body
* The body text of the node.
* @param array $check_list
* List of items that should be in rendered output (assertRaw).
* An item is something like array($source_code, $lang, $line_numbering,
* $linenumbers_start, $inline_mode). If $lang is set, GeSHifilter syntax
* highlighting is applied to $sourcecode. If $lang is false, $sourcecode is
* directly looked for.
* @param string $description
* Description of the assertion.
* @param bool $invert
* If assertNoRaw should be used instead of assertRaw.
*/
protected function assertGeshiFilterHighlighting($body, array $check_list, $description, $invert = FALSE)
{
// Create a node.
$node = array('title' => 'Test for GeShi Filter', 'body' => array(array('value' => $body . "\n" . $this->randomMachineName(100), 'format' => 'geshifilter_text_format')), 'type' => 'geshifilter_content_type');
$this->drupalCreateNode($node);
$this->drupalGet('node/' . $this->node);
$this->node++;
// $format = entity_load('filter_format', 'geshifilter_text_format');
// $filter = $format->filters('geshifilter');
// $format->settings['format'];.
foreach ($check_list as $fragment) {
list($source_code, $lang, $line_numbering, $linenumbers_start, $inline_mode) = $fragment;
if ($lang) {
// Apply syntax highlighting.
$source_code = GeshiFilterProcess::geshiProcess($source_code, $lang, $line_numbering, $linenumbers_start, $inline_mode);
}
if ($invert) {
$this->assertNoRaw($source_code, $description);
} else {
$this->assertRaw($source_code, $description);
}
}
}
/**
* Callback for preg_replace_callback.
*
* Old: _geshifilter_replace_callback($match, $format).
*
* @param array $match
* Elements from array:
* - 0: complete matched string.
* - 1: tag name.
* - 2: tag attributes.
* - 3: tag content.
*
* @return string
* Return the string processed by geshi library.
*/
protected function replaceCallback(array $match)
{
$complete_match = $match[0];
$tag_name = $match[1];
$tag_attributes = $match[2];
$source_code = $match[3];
// Undo linebreak and escaping from preparation phase.
$source_code = Html::decodeEntities($source_code);
// Initialize to default settings.
$lang = $this->config->get('default_highlighting');
$line_numbering = $this->config->get('default_line_numbering');
$linenumbers_start = 1;
$title = NULL;
// Determine language based on tag name if possible.
list($generic_code_tags, $language_tags, $tag_to_lang) = $this->getTags();
if (in_array(GeshiFilter::BRACKETS_PHPBLOCK, array_filter($this->tagStyles()))) {
$language_tags[] = 'questionmarkphp';
$tag_to_lang['questionmarkphp'] = 'php';
}
if (isset($tag_to_lang[$tag_name])) {
$lang = $tag_to_lang[$tag_name];
}
// Get additional settings from the tag attributes.
$settings = $this->parseAttributes($tag_attributes);
if (isset($settings['language'])) {
$lang = $settings['language'];
}
if (isset($settings['line_numbering'])) {
$line_numbering = $settings['line_numbering'];
}
if (isset($settings['linenumbers_start'])) {
$linenumbers_start = $settings['linenumbers_start'];
}
if (isset($settings['title'])) {
$title = $settings['title'];
}
if ($lang == GeshiFilter::DEFAULT_DONOTHING) {
// Do nothing, and return the original.
return $complete_match;
}
if ($lang == GeshiFilter::DEFAULT_PLAINTEXT) {
// Use plain text 'highlighting'.
$lang = 'text';
}
$inline_mode = strpos($source_code, "\n") === FALSE;
// Process and return.
return GeshiFilterProcess::processSourceCode($source_code, $lang, $line_numbering, $linenumbers_start, $inline_mode, $title);
}