highlight.js library. Highlight.js highlights syntax in code examples on blogs, forums and in fact on any web pages. It´s very easy to use because it works automatically: finds blocks of code, detects a language, highlights it.
* Version: 0.6.2
* Author: OWenT
* Author URI: https://owent.net/
* License: 3-clause BSD
*/
$PLUGIN_DIR = plugins_url() . '/' . dirname(plugin_basename(__FILE__));
/**
* Get version of this plugins
*/
function hljs_get_version() {
return '0.6.2';
}
/**
* Get version of Highlight.js
*/
function hljs_get_lib_version() {
return '9.12.0';
}
/**
* list cdn list
*/
function hljs_cdn_list() {
return array(
'local' => array(
'cdn' => 'local',
'desc' => __('local', 'wp-code-highlight.js'),
'css' => '',
'js' => '',
'readme' => '',
),
'CdnJs' => array(
'cdn' => '//cdnjs.cloudflare.com/ajax/libs/highlight.js/' . hljs_get_lib_version(),
'desc' => __('Public CDN', 'wp-code-highlight.js') . ': cdnjs (' . __('highlightjs.org recommend', 'wp-code-highlight.js') . ')',
'css' => '.min',
'js' => '.min',
'readme' => 'https://cdnjs.com/libraries/highlight.js'
),
'BootCSS' => array(
'cdn' => '//cdn.bootcss.com/highlight.js/' . hljs_get_lib_version(),
// 'cdn' => '//cdn.bootcss.com/highlight.js/9.2.0',
'desc' => __('Public CDN', 'wp-code-highlight.js') . ': BootCSS',
'css' => '.min',
'js' => '.min',
'readme' => 'http://www.bootcdn.cn/highlight.js/'
),
'jsDelivr' => array(
//'cdn' => '//cdn.jsdelivr.net/highlight.js/' . hljs_get_lib_version(),
'cdn' => '//cdn.jsdelivr.net/highlight.js/9.11.0',
'desc' => __('Public CDN', 'wp-code-highlight.js') . ': jsDelivr (' . __('highlightjs.org recommend', 'wp-code-highlight.js') . ') ' . __('lastest version', 'wp-code-highlight.js') . ': 9.11.0)',
'css' => '.min',
'js' => '.min',
'readme' => 'http://www.jsdelivr.com/#!highlight.js'
),
'MaxCDN' => array(
//'cdn' => '//oss.maxcdn.com/highlight.js/' . hljs_get_lib_version(),
'cdn' => '//oss.maxcdn.com/highlight.js/9.11.0',
'desc' => __('Public CDN', 'wp-code-highlight.js') . ': MaxCDN ' . __('lastest version', 'wp-code-highlight.js') . ': 9.11.0)',
'css' => '.min',
'js' => '.min',
'readme' => 'http://osscdn.com/#/highlight.js'
),
'Baidu' => array(
//'cdn' => 'http://apps.bdimg.com/libs/highlight.js/' . hljs_get_lib_version(),
//'cdn' => '//openapi.baidu.com/libs/highlight.js/' . hljs_get_lib_version(),
'cdn' => '//openapi.baidu.com/libs/highlight.js/9.1.0',
'desc' => __('Public CDN', 'wp-code-highlight.js') . ': ' . __('Baidu', 'wp-code-highlight.js') . __('lastest version', 'wp-code-highlight.js') . ': 9.1.0)',
'css' => '.min',
'js' => '.min',
'readme' => 'http://cdn.code.baidu.com/#highlight.js'
)
);
}
/**
* Plugin Installation:
* - create configuration keys
*/
function hljs_install() {
add_option('hljs_code_option', array(
'location' => 'local',
'package' => 'common',
'theme' => 'default',
'hljs_option' => array(
'tabReplace' => ' ',
'classPrefix' => '',
'useBR' => false,
'languages' => ''
),
'additional_css' => "code.hljs { /*margin: 5px;*/ }",
'syntaxhighlighter_compatible' => false,
'crayonsyntaxhighlighter_compatible' => false,
'prettify_compatible' => false,
'shortcode' => false,
'custom_lang' => array()
));
}
register_activation_hook(__FILE__, 'hljs_install');
/**
* Plugin Deinstallation
* - delete configuration keys
*/
function hljs_deinstall() {
delete_option('hljs_code_option');
}
register_deactivation_hook(__FILE__, 'hljs_deinstall');
/**
* Get option of this plugin
*/
function hljs_get_option($item) {
$res = get_option('hljs_code_option');
if (empty($res) || !isset($res[$item]))
return null;
return $res[$item];
}
/**
* Set option of this plugin
*/
function hljs_set_option($item, $val) {
$res = get_option('hljs_code_option');
if (empty($res))
$res = array();
$res[$item] = $val;
update_option('hljs_code_option', $res);
return $val;
}
/**
* Get option of highlight.js
*/
function hljs_get_lib_option($item) {
$res = hljs_get_option('hljs_option');
if (empty($res) || !isset($res[$item]))
return '';
return $res[$item];
}
function hljs_remove_ex_mode() {
$upload_options = get_option('hljs_code_option');
if (!empty($upload_options)) {
$opt_packs = $upload_options['package'];
// ex mode already deleted, so convert to custom mode
if ('ex' == $opt_packs) {
$upload_options['package'] = 'custom';
$upload_options['custom_lang'] = array('actionscript', 'applescript', 'cmake', 'capnproto', 'd', 'dos', 'erlang', 'fsharp', 'go', 'less', 'lisp', 'lua', 'matlab', 'protobuf', 'profile', 'scala', 'tex', 'typescript');
update_option('hljs_code_option', $upload_options);
}
hljs_generate_custom_pack();
}
}
/**
* Attach Highlight.js to the current page
* - attach highlight.pack.js
* - attach colorscheme stylesheet
*/
function hljs_include() {
global $PLUGIN_DIR;
$hljs_code_option = get_option('hljs_code_option');
$hljs_location = $hljs_code_option['location'];
$hljs_package = hljs_get_option('package');
$hljs_cdn_list = hljs_cdn_list();
$hljs_cdn_info = $hljs_cdn_list['local'];
if (!empty($hljs_cdn_list[$hljs_location]))
$hljs_cdn_info = $hljs_cdn_list[$hljs_location];
// inject js & css file
if ( 'local' == $hljs_cdn_info['cdn'] ) {
if ('ex' == $hljs_package) {
hljs_remove_ex_mode();
}
$dep_libs = array('jquery');
if ('custom' == $hljs_package) {
wp_enqueue_script( 'hljs_preload', $PLUGIN_DIR . '/highlight.common.pack.js', $dep_libs, hljs_get_version(), true );
$dep_libs = array('hljs_preload');
}
wp_enqueue_script( 'hljs', $PLUGIN_DIR . '/highlight.' . $hljs_package .'.pack.js', $dep_libs, hljs_get_version(), true );
wp_enqueue_style( 'hljstheme', $PLUGIN_DIR . '/styles/' . $hljs_code_option['theme'] . '.css', array(), hljs_get_version() );
} else {
wp_enqueue_script( 'hljs', $hljs_cdn_info['cdn'] . '/highlight' . $hljs_cdn_info['js'] . '.js', array('jquery'), hljs_get_version(), true );
wp_enqueue_style( 'hljstheme', $hljs_cdn_info['cdn'] . '/styles/' . $hljs_code_option['theme'] . $hljs_cdn_info['css'] . '.css', array(), hljs_get_version() );
// additional languages
$custom_addition_langs = hljs_get_option('custom_lang');
if(!empty($custom_addition_langs)) {
foreach(hljs_get_option('custom_lang') as $lang) {
wp_enqueue_script( 'hljs_lang_' . $lang, $hljs_cdn_info['cdn'] . '/languages/' . $lang . $hljs_cdn_info['js'] . '.js', array('hljs'), hljs_get_version(), true );
}
}
}
}
add_action('wp_head', 'hljs_include');
/**
* Attach init code to the current page
*/
function hljs_append_init_codes() {
$hljs_code_option = get_option('hljs_code_option');
// inject init script
foreach ($hljs_code_option['hljs_option'] as $key => $val) {
if (!empty($val)) {
$hljs_lib_config[$key] = $val;
}
}
?>
$val) {
?> readme_url="" > 'Common(about 40+KB)',
'all' => 'All(about 400+KB)',
'custom' => 'Custom',
);
foreach($pkgs as $key => $val) {
?>> > ' . __('Settings') . '';
}
return $links;
}
add_filter('plugin_action_links', 'hljs_add_settings_link', 10, 2);
/**
* Add BB-Tag for highlighting.
*
* Usage: [CODE lang=cpp bbcode=enable]...[/CODE]
*/
function hljs_code_handler($attrs, $content) {
$language = '';
if (!empty($attrs['lang']))
$language = "class=\"${attrs['lang']}\"";
$enable_inner_bbcode = false;
if(isset($attrs['bbcode'])) {
$enable_inner_bbcode = true;
if('disable' === $attrs['bbcode'] || 0 === $attrs['bbcode']) {
$enable_inner_bbcode = false;
}
}
if($enable_inner_bbcode) {
return "" . do_shortcode(ltrim($content, "\n")) . '" . ltrim($content, "\n") . '' . __('Write custom highlight language package to', 'wp-code-highlight.js') . ' ' . $custom_pack_file . __('failed, please grant write permission to it.', 'wp-code-highlight.js') . '
';
$ret = FALSE;
} else {
foreach($opt_langs as $language_name) {
$file_name = $language_name . '.min.js';
$full_path = $plugin_root_dir . DIRECTORY_SEPARATOR . 'languages' . DIRECTORY_SEPARATOR . $file_name;
if (file_exists($full_path)) {
$fc = file_get_contents($full_path);
file_put_contents($custom_pack_file, $fc . PHP_EOL, FILE_APPEND);
} else {
echo '' .
__('Language file', 'wp-code-highlight.js') .
' ' . $file_name . ' ' .
__('not found', 'wp-code-highlight.js') . ', ' .
__('ignored', 'wp-code-highlight.js') . '
';
}
}
echo '' . __('Generate custom highlight language package done.', 'wp-code-highlight.js') . '
';
}
} else {
// check if CDN available
$all_available_cdns = hljs_cdn_list();
if(empty($all_available_cdns[$opt_loc])) {
$default_cdn = 'CdnJs';
foreach($all_available_cdns as $key => $val) {
if ('local' != $key) {
$default_cdn = $key;
break;
}
}
hljs_set_option('location', $default_cdn);
echo '' . __('CDN ', 'wp-code-highlight.js') . $opt_loc . __(' not available now', 'wp-code-highlight.js') . '
';
echo '' . __('Use default CDN ', 'wp-code-highlight.js') . $default_cdn . '
';
}
}
// rename style to default when filename is changed by highlight.js
$style_name = hljs_get_option('theme');
if (false == file_exists($plugin_root_dir . DIRECTORY_SEPARATOR . 'styles' . DIRECTORY_SEPARATOR . $style_name . '.css')) {
hljs_set_option('theme', 'default');
echo '' . __('Style named ' . $style_name . ' is unavailable, maybe highlight.js has changed the name. Theme changed to default now', 'wp-code-highlight.js') . '
';
}
return $ret;
}
function hljs_on_update_complete($plugin, $data) {
if (!empty($data) && !empty($data['type']) && 'plugin' == $data['type'] && 'update' == $data['action']) {
$this_file_name = basename(__FILE__);
$rebuild_flag = false;
foreach($data['plugins'] as $updated_file) {
if ($this_file_name == basename($updated_file)) {
$rebuild_flag = true;
}
}
if ($rebuild_flag) {
hljs_generate_custom_pack();
}
}
}
add_action('upgrader_process_complete', 'hljs_on_update_complete', 10, 2);
/**
* Highlight.js Settings Page
*/
function hljs_settings_page() {
global $PLUGIN_DIR;
if (isset( $_POST['cmd'] ) && $_POST['cmd'] == 'hljs_save')
{
$upload_options = array(
'location' => $_POST['hljs_location'],
'package' => $_POST['hljs_package'],
'theme' => $_POST['hljs_theme'],
'hljs_option' => array(
'tabReplace' => $_POST['hljs_option_tab_replace'],
'classPrefix' => $_POST['hljs_option_class_prefix'],
'useBR' => (isset($_POST['hljs_option_use_br']) && $_POST['hljs_option_use_br'])? true: false,
'languages' => $_POST['hljs_option_languages']
),
'additional_css' => $_POST['hljs_additional_css'],
'syntaxhighlighter_compatible' => (isset($_POST['hljs_syntaxhighlighter_compatible']) && $_POST['hljs_syntaxhighlighter_compatible'])? true: false,
'prettify_compatible' => (isset($_POST['hljs_prettify_compatible']) && $_POST['hljs_prettify_compatible'])? true: false,
'crayonsyntaxhighlighter_compatible' => (isset($_POST['hljs_crayonsyntaxhighlighter_compatible']) && $_POST['hljs_crayonsyntaxhighlighter_compatible'])? true: false,
'shortcode' => (isset($_POST['hljs_enable_shortcode']) && $_POST['hljs_enable_shortcode'])? true: false,
'custom_lang' => hljs_get_option('custom_lang')
);
// generate custom language pack
if ('local' == $upload_options['location'] && 'custom' == $upload_options['package']) {
$upload_options['custom_lang'] = array();
$plugin_root_dir = plugin_dir_path( __FILE__ );
foreach($_POST as $key => $val) {
$suffix = substr($key, -3);
if (('.js' == $suffix || '_js' == $suffix )&& intval($val) == 1) {
$language_name = substr($key, 0, strlen($key) - 3);
$file_name = $language_name . '.min.js';
$full_path = $plugin_root_dir . DIRECTORY_SEPARATOR . 'languages' . DIRECTORY_SEPARATOR . $file_name;
if (file_exists($full_path)) {
array_push($upload_options['custom_lang'], $language_name);
} else {
echo '' .
__('Language file', 'wp-code-highlight.js') .
' ' . $file_name . ' ' .
__('not found', 'wp-code-highlight.js') . ', ' .
__('ignored', 'wp-code-highlight.js') . '
';
}
}
}
}
update_option('hljs_code_option', $upload_options);
$res = hljs_generate_custom_pack();
if ($res === FALSE) {
echo '' . __('Save configurations failed.', 'wp-code-highlight.js') . '
';
} else {
echo '' . __('All configurations successfully saved.', 'wp-code-highlight.js') . '
';
}
}
?>
admin@owent.net >
This is a wordpress plugin for highlight.js library.
Highlight.js highlights syntax in code examples on web pages.
It´s very easy to use because it works automatically: finds blocks of code, detects a language, highlights it.
And it´s very easy to work with stackedit or other markdown editors
', 'wp-code-highlight.js'); ?>
[code] this language will be automatically determined [/code]
[code lang="cpp"] highlight the code with certain language [/code]
<pre><code> this language will be automatically determined </code></pre>
<pre><code bbcode=enable> this language will be [b]automatically determined[\b] and inner bbcode is available </code></pre>
<pre><code class="html"> highlight the code with certain language </code></pre>
https://github.com/owt5008137/WP-Code-Highlight.js/#donate to donate me for a cup of coffee.', 'wp-code-highlight.js'); ?>
: