tag that have class value of lang:
* Pattern: ]* - class - space character(s)
- = - space character(s) - " or ' - space character(s) - any character(s) - >
any character until next group (.*)
example: ]*class\s*=\s*[\"\']lang\s*:[^>]*>)(.*)(<\s*\/pre\s*>)/isU";
add_action( 'wp_enqueue_scripts', array($this, 'load_scripts') );
add_filter( 'the_content', array($this, 'filter_content'), 10, 1 );
add_filter( 'comment_text', array($this, 'filter_comments'), 10, 1);
}
public function load_scripts()
{
// If not post or page, we cannot check this earlier
if (!is_single())
return;
/**
Only load javascript and css file when needed,
we check it in the post and comment content
*/
global $post;
preg_match_all($this->regex, $post->post_content, $match_post);
if ($match_post[0])
{
$this->match_post = $match_post;
}
if ($post->comment_count)
{
$comments = get_comments( array('post_id' => $post->ID, 'status' => 'approve') );
if ($comments)
{
foreach ($comments as $comment)
{
preg_match_all($this->regex, $comment->comment_content, $match_comment);
if ($match_comment[0])
{
$this->match_comment = true;
break;
}
}
}
}
if ($this->match_post || $this->match_comment)
{
// New version
$upload_dir = wp_upload_dir();
$path = $upload_dir['basedir'] . APHPH_DS . 'aphph';
$css_path = $upload_dir['basedir'] . '/aphph/aphph-prism-' . $this->options['token'] . '.css';
$js_path = $upload_dir['basedir'] . '/aphph/aphph-prism-' . $this->options['token'] . '.js';
if (!file_exists($css_path) || !file_exists($js_path))
{
require_once 'aphph-build.php';
$obj = new Aphph_Build;
$obj->build_files();
}
// $css_path = APHPH_PLUGIN_PATH . '/css/prism/aphph-prism-' . $this->options['token'] . '.css';
// $js_path = APHPH_PLUGIN_PATH . '/js/prism/aphph-prism-' . $this->options['token'] . '.js';
// if (!file_exists($css_path) || !file_exists($js_path))
// {
// require_once 'aphph-admin.php';
// $obj = new Aphph_Admin();
// $obj->build_files();
// }
wp_enqueue_script( 'aphsh-prism-js', $upload_dir['baseurl'] . '/aphph/aphph-prism-' . $this->options['token'] . '.js' );
wp_enqueue_style( 'aphsh-prism-css', $upload_dir['baseurl'] . '/aphph/aphph-prism-' . $this->options['token'] . '.css' );
}
}
public function filter_comments($comment)
{
if ($this->match_comment)
{
preg_match_all($this->regex, $comment, $matches);
if ($matches[0])
{
$comment = $this->alter_content($comment, $matches);
}
}
return $comment;
}
public function filter_content($content)
{
// If not post or page, we cannot check this earlier
if (is_single())
{
if ($this->match_post)
{
return $this->alter_content($content, $this->match_post);
}
}
return $content;
}
public function alter_content($content, $matches)
{
$default_pretag_class = array('aphph-container');
$default_pretag_data = array();
if ($this->options['class'])
$default_pretag_class['default'] = $this->options['class'];
if ($this->options['gutter'] || $this->options['line-highlight']) {
$default_pretag_class['line-number'] = 'line-numbers';
if ($this->options['start-number'] != 1)
{
$default_pretag_data['start-line-number'] = 'data-start="'.$this->options['start-number'].'"';
}
}
foreach ($matches[1] as $tag_index => $pre_tag)
{
$new_pre_tag = $pre_tag;
$pretag_class = $default_pretag_class;
$pretag_data = $default_pretag_data;
// Get class value
preg_match('/class\s*=\s*[\"\']([^\"\']*)[\"\']/si', $pre_tag, $attr_class);
/**
* Fix class value by removing space between : sign => lang : php become lang:php
* and remove multiple whitespace
* this is because we'll explode it using space
*/
$fixed_class = preg_replace('/(\s*:\s*)/', ':', trim($attr_class[1]));
$fixed_class = preg_replace('/\s+/', ' ', trim($fixed_class));
/* Translate the css value into prism */
$exp = explode(' ', $fixed_class);
$language = '';
foreach ($exp as $key => $class_item)
{
$split = explode(':', $class_item);
$param = trim($split[0]);
$value = trim($split[1]);
// Used to compare with default options
$param_list[$param] = $param;
// language
if ($param == 'lang') {
if (strpos($value, 'add') !== false) {
$language = $value;
$pretag_class['aphph-'.$value] = 'aphph-'.$value;
$codetag_class = 'aphph-' . $value;
} else {
$codetag_class = 'language-' . $value;
$pretag_class['language-' . $value] = 'language-' . $value;
}
}
// highlight
elseif ($param == 'mark') {
$pretag_data['mark'] = 'data-line="' . $value . '"';
}
// class-name
elseif ($param == 'class')
{
$pretag_class['add'] = $value;
}
// gutter
elseif ($param == 'gutter' || $param == 'line-highlight')
{
if ($value == 'true')
{
$pretag_class['line-number'] = 'line-numbers';
} else {
unset($pretag_class['line-number']);
}
}
// start number
elseif ($param == 'start')
{
if ($value != 1)
$pretag_data['start-line-number'] = 'data-start="'.$value.'"';
}
}
// echo ''; print_r($pretag_class);die;
/* Clean up $pretag_class
* Currently we can't combine line highlight with show line numbers
* so if the line highlight is active, we disable the show line numbers
* also we don't add line number form plain language
*/
if (strpos($language, 'add') !== false) {
unset($pretag_class['line-number']);
}
if(key_exists('mark', $pretag_data))
unset($pretag_class['line-number']);
if(!key_exists('line-number', $pretag_class))
unset($pretag_data['start-line-number']);
// Add data- atttribute
if ($pretag_data) {
$new_pre_tag = preg_replace('/([^>]*)>/', '$1 ' . join($pretag_data, ' ') . '>', $new_pre_tag);
}
// Add class attribute
if ($pretag_class) {
$new_class = join($pretag_class, ' ');
$new_pre_tag = preg_replace('/'.$attr_class[1].'/', $new_class, $new_pre_tag);
} else {
// Remove class attribute
$new_pre_tag = preg_replace('/\s*class\s*=\s*[\"\'][^\"\']*[\"\']\s*/i', ' ', $new_pre_tag);
}
// Clean up change to if any
$new_pre_tag = preg_replace('//', '', $new_pre_tag);
/**
* Bulid Code
*/
$content = preg_replace('/('.$pre_tag.')(.*)(<\s*\/pre\s*>)/isU',
$new_pre_tag . '$2',
$content);
}
return $content;
}
}