Web/node/lib/showdown-prettify.js

// Modified version of https://github.com/showdownjs/prettify-extension

/*! showdown-prettify 06-01-2016 */
(function (extension) {
    'use strict';

    if (typeof showdown !== 'undefined') {
        extension(showdown);
    } else if (typeof define === 'function' && define.amd) {
        define(['showdown'], extension);
    } else if (typeof exports === 'object') {
        module.exports = extension(require('showdown'));
    } else {
        throw Error('Could not find showdown library');
    }

}(function (showdown) {
    'use strict';
    showdown.extension('prettify', function () {
        return [{
            type: 'output',
            filter: function (source) {
                return source.replace(/(<pre[^>]*>)?[\n\s]?<code([^>]*)>/gi, function (match, pre, codeClass) {
                    if (pre) {
                        return '<pre class="prettyprint linenums"><code' + codeClass + '>';
                    } else {
                        return ' <code>';
                    }
                });
            }
        }];
    });
}));

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