ColorizeRegexSyntax.js

/* <![CDATA[ */
/* File:        ColorizeRegexSyntax.js
 * Version:     20100921_2200
 * Copyright:   (c) 2010 Jeff Roberson - http://jmrware.com
 * MIT License: http://www.opensource.org/licenses/mit-license.php
 *
 * Summary: This script is called by the documentation and tester
 * HTML pages to allow the DynamicRegegHighlighter.js script to
 * work together with Steven Levithan's regex syntax colorizer
 * script. This script calls the highlightJsReSyntax() function
 * within the jsresyntaxhighlighter.js script for all elements
 * on a page having class="regex" to colorize their regex syntax.
 * A sentence is added to the header link paragraph (id="headerlinks")
 * giving credit and a link to Steven's regex highlighter blog page.
 * If there is an element with id="regex_form_submit", then a new
 * form checkbox input is added to allow turning on colorization.
 * Loading order: This must be loaded after jsresyntaxhighlighter.js
 * and DynamicRegexHighlighter.js (both scripts are required).
 *
 * Adapted from: http://stevenlevithan.com/regex/syntaxhighlighter/
 * test page. That and jsresyntaxhighlighter.js covered by MIT License,
 * (c) 2010 Steven Levithan <http://stevenlevithan.com>,

 */
(function() { // Run right now and create no globals.
    function reColorizeAll() {
        var el;         // DOM element node.
        var text;       // String with element Node contents.
        var re_elems = reGetElemsByKlassNames(document, "regex");
        var i;          // Loop index number.
        var len = re_elems.length;
        for (i = 0; i < len; i++) {
            el = re_elems[i];
            // Read plain regex text data from DOM element node.
            text = el.textContent || el.innerText || el.innerHTML;
            // Write marked up, colorized syntax regex data.
            text = highlightJsReSyntax(text);   // See: http://stevenlevithan.com
            el = rePutElemContents(el, text);   // Preserve whitespace in PREs.
        }
        // Let folks know where the colorization code came from.
        el = document.getElementById('headerlinks');
        if (el) { // Append a sentence with a link to end of regex node.
            el.innerHTML += ' Regex colorization provided by: <a title="Steven Levithan\'s Blog" href="http://blog.stevenlevithan.com/archives/regex-syntax-highlighter">Regex Syntax Highlighter<\/a>.';
        }
        // Add colorizing checkbox option if regex_form_submit element exists.
        el = document.getElementById("regex_form_submit");
        if (el) {
            el.innerHTML = ' Choose <input name="cb_col" id="cb_col" checked="checked" title="Color syntax highlighting only good for (uncommented) Javascript flavor." type="checkbox"> Color syntax highlighting. ' + el.innerHTML;
        }
    }
    // Delay running the above function until after the page is loaded.
    if (document.getElementById &&      // Continue loading only if not a braindead browser and
        window.rePutElemContents &&     // the DynamicRegexHighlighter.js script is loaded and
        window.highlightJsReSyntax) {   // the jsresyntaxhighlighter.js script is also loaded.
        reAddLoadEventFirst(reColorizeAll); // This must run before
    } // DynamicRegexHighlighter's reOnload() initialization function.
})();
/* ]]> */