Module Textformatter Yumpu Embed

[bernhard]

very simple module to turn this:

into this:

<?php

/**
 * ProcessWire Yumpu Replace Textformatter
 *
 * @copyright Copyright (c) 2015, Bernhard Baumrock, dimacon.at
 */

class TextformatterYumpu extends Textformatter
{
    public static function getModuleInfo()
    {
        return array(
            'title'     => 'Yumpu replace',
            'version'   => 1,
            'summary'   => 'Replaces Yumpu Links with responsive Iframes',
            'author'    => 'Bernhard Baumrock, dimacon.at',
        );
    }


    /**
     * Format the input string
     *
     * @param string $str The block of text to parse
     *
     * The incoming string is replaced with the formatted version of itself.
     **/
    public function format(&$str)
    {
        // convert yumpu links to iframes
        $str = preg_replace("/https:\/\/www.yumpu.com\/(..\/)?embed\/view\/\w*/", '<div class="TextformatterVideoEmbed" style="position:relative;padding:30px 0 56.25% 0;height:0;overflow:hidden;"><iframe style="position:absolute;top:0;left:0;width:100%;height:100%;" width="640" height="360" src="\0" frameborder="0" allowfullscreen></iframe></div>', $str);
    }
}

I think there are also other solutions but maybe this one fits better for someone...