纯代码WordPress免插件实现代码高亮显示

    //Wordpress免插件实现代码高亮

    //Prism.js开始

     function add_prism() {

            wp_register_style(

                'prismCSS',

                get_stylesheet_directory_uri() . '/prism/prism.css' //自定义路径

             );

              wp_register_script(

                'prismJS',

                get_stylesheet_directory_uri() . '/prism/prism.js' //自定义路径

             );

            wp_enqueue_style('prismCSS');

            wp_enqueue_script('prismJS');

        }

    add_action('wp_enqueue_scripts', 'add_prism');

    //Prism.js结束

    //编辑器添加快捷键

    function appthemes_add_quicktags() {

    ?>

    <script type="text/javascript">

    QTags.addButton( 'codeHighlight', '代码高亮', '\n【pre class="line-numbers"】【code class="language-markup"】\n HTML代码\n【/code】【/pre】\n' );

    QTags.addButton( 'php', 'php', '\n【pre class="line-numbers"】【code class="language-php"】\n PHP代码\n【/code】【/pre】\n' );

    QTags.addButton( 'python', 'Python', '\n【pre class="line-numbers"】【code class="language-python"】\n Python代码\n【/code】【/pre】\n' );//修改此段【】为<>

    </script>

    <?php

    }

    add_action('admin_print_footer_scripts', 'appthemes_add_quicktags' );

    //添加快捷键结束

    //Pre标签内的HTML不转义

    add_filter( 'the_content', 'pre_content_filter', 0 );

    function pre_content_filter( $content ) {

        return preg_replace_callback( '|【pre.*】【code.*】(.*)【/code】【/pre】|isU' , 'convert_pre_entities', $content );

    }//修改此段【】为<>

    function convert_pre_entities( $matches ) {

        return str_replace( $matches[1], htmlentities( $matches[1] ), $matches[0] );

    }