embed gist shortcode

gist-shortcode-css.css

/* Optional CSS for themes that don't wrap the pre tag properly */
div.github-gist-block pre {
    background-color: #F5F5F5;
    border: 1px solid rgba(0, 0, 0, 0.15);
    border-radius: 4px 4px 4px 4px;
    display: block;
    font-size: 13px;
    line-height: 20px;
    margin: 0 0 10px;
    padding: 9.5px;
    white-space: pre-wrap;
    word-break: break-all;
    word-wrap: break-word;
}

gist-shortcode.php

function gist_shortcode($atts, $content = NULL) {
        extract( shortcode_atts( array(
            'id'    => '',
            'title' => ''
           
        ), $atts ) );

    if (empty ($id) )
        return;

    $gist = '<div class="github-gist-block">';
    
    if(!empty($title))
        $gist .= '<h4>'.$title.'</h4>';

    $gist .= '<script src="https://gist.github.com/'.$id.'.js"></script>';
    $gist .= '</div>';

    // now send it all back
    return $gist;
}

add_shortcode ( 'gist', 'gist_shortcode');

/* USAGE
the ID is found in the URL of the gist. For example, this one is https://gist.github.com/gists/3812565/
[gist id="3812565"]

You can add an optional title to show up above the block
[gist id="3812565" title="My Gist Title"]

without the ID present, nothing will fire.
*/