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with all toolbar links dp.sh.Toolbar.Create = function(highlighter) { var div = document.createElement('DIV'); div.className = 'tools'; for(var name in dp.sh.Toolbar.Commands) { var cmd = dp.sh.Toolbar.Commands[name]; if(cmd.check != null && !cmd.check(highlighter)) continue; div.innerHTML += '' + cmd.label + ''; } return div; } // executes toolbar command by name dp.sh.Toolbar.Command = function(name, sender) { var n = sender; while(n != null && n.className.indexOf('dp-highlighter') == -1) n = n.parentNode; if(n != null) dp.sh.Toolbar.Commands[name].func(sender, n.highlighter); } // copies all from 'target' window to 'dest' dp.sh.Utils.CopyStyles = function(destDoc, sourceDoc) { var links = sourceDoc.getElementsByTagName('link'); for(var i = 0; i < links.length; i++) if(links[i].rel.toLowerCase() == 'stylesheet') destDoc.write(''); } dp.sh.Utils.FixForBlogger = function(str) { return (dp.sh.isBloggerMode == true) ? str.replace(/|<br\s*\/?>/gi, '\n') : str; } // // Common reusable regular expressions // dp.sh.RegexLib = { MultiLineCComments : new RegExp('/\\*[\\s\\S]*?\\*/', 'gm'), SingleLineCComments : new RegExp('//.*$', 'gm'), SingleLinePerlComments : new RegExp('#.*$', 'gm'), DoubleQuotedString : new RegExp('"(?:\\.|(\\\\\\")|[^\\""\\n])*"','g'), SingleQuotedString : new RegExp("'(?:\\.|(\\\\\\')|[^\\''\\n])*'", 'g') }; // // Match object // dp.sh.Match = function(value, index, css) { this.value = value; this.index = index; this.length = value.length; this.css = css; } // // Highlighter object // dp.sh.Highlighter = function() { this.noGutter = false; this.addControls = true; this.collapse = false; this.tabsToSpaces = true; this.wrapColumn = 80; this.showColumns = true; } // static callback for the match sorting dp.sh.Highlighter.SortCallback = function(m1, m2) { // sort matches by index first if(m1.index < m2.index) return -1; else if(m1.index > m2.index) return 1; else { // if index is the same, sort by length if(m1.length < m2.length) return -1; else if(m1.length > m2.length) return 1; } return 0; } dp.sh.Highlighter.prototype.CreateElement = function(name) { var result = document.createElement(name); result.highlighter = this; return result; } // gets a list of all matches for a given regular expression dp.sh.Highlighter.prototype.GetMatches = function(regex, css) { var index = 0; var match = null; while((match = regex.exec(this.code)) != null) this.matches[this.matches.length] = new dp.sh.Match(match[0], match.index, css); } dp.sh.Highlighter.prototype.AddBit = function(str, css) { if(str == null || str.length == 0) return; var span = this.CreateElement('SPAN'); // str = str.replace(/&/g, '&'); str = str.replace(/ /g, ' '); str = str.replace(//g, '>'); str = str.replace(/\n/gm, '
'); // when adding a piece of code, check to see if it has line breaks in it // and if it does, wrap individual line breaks with span tags if(css != null) { if((/br/gi).test(str)) { var lines = str.split('
'); for(var i = 0; i < lines.length; i++) { span = this.CreateElement('SPAN'); span.className = css; span.innerHTML = lines[i]; this.div.appendChild(span); // don't add a
for the last line if(i + 1 < lines.length) this.div.appendChild(this.CreateElement('BR')); } } else { span.className = css; span.innerHTML = str; this.div.appendChild(span); } } else { span.innerHTML = str; this.div.appendChild(span); } } // checks if one match is inside any other match dp.sh.Highlighter.prototype.IsInside = function(match) { if(match == null || match.length == 0) return false; for(var i = 0; i < this.matches.length; i++) { var c = this.matches[i]; if(c == null) continue; if((match.index > c.index) && (match.index < c.index + c.length)) return true; } return false; } dp.sh.Highlighter.prototype.ProcessRegexList = function() { for(var i = 0; i < this.regexList.length; i++) this.GetMatches(this.regexList[i].regex, this.regexList[i].css); } dp.sh.Highlighter.prototype.ProcessSmartTabs = function(code) { var lines = code.split('\n'); var result = ''; var tabSize = 4; var tab = '\t'; // This function inserts specified amount of spaces in the string // where a tab is while removing that given tab. function InsertSpaces(line, pos, count) { var left = line.substr(0, pos); var right = line.substr(pos + 1, line.length); // pos + 1 will get rid of the tab var spaces = ''; for(var i = 0; i < count; i++) spaces += ' '; return left + spaces + right; } // This function process one line for 'smart tabs' function ProcessLine(line, tabSize) { if(line.indexOf(tab) == -1) return line; var pos = 0; while((pos = line.indexOf(tab)) != -1) { // This is pretty much all there is to the 'smart tabs' logic. // Based on the position within the line and size of a tab, // calculate the amount of spaces we need to insert. var spaces = tabSize - pos % tabSize; line = InsertSpaces(line, pos, spaces); } return line; } // Go through all the lines and do the 'smart tabs' magic. for(var i = 0; i < lines.length; i++) result += ProcessLine(lines[i], tabSize) + '\n'; return result; } dp.sh.Highlighter.prototype.SwitchToList = function() { // thanks to Lachlan Donald from SitePoint.com for this
tag fix. var html = this.div.innerHTML.replace(/<(br)\/?>/gi, '\n'); var lines = html.split('\n'); if(this.addControls == true) this.bar.appendChild(dp.sh.Toolbar.Create(this)); // add columns ruler if(this.showColumns) { var div = this.CreateElement('div'); var columns = this.CreateElement('div'); var showEvery = 10; var i = 1; while(i <= 150) { if(i % showEvery == 0) { div.innerHTML += i; i += (i + '').length; } else { div.innerHTML += '·'; i++; } } columns.className = 'columns'; columns.appendChild(div); this.bar.appendChild(columns); } for(var i = 0, lineIndex = this.firstLine; i < lines.length - 1; i++, lineIndex++) { var li = this.CreateElement('LI'); var span = this.CreateElement('SPAN'); // uses .line1 and .line2 css styles for alternating lines li.className = (i % 2 == 0) ? 'alt' : ''; span.innerHTML = lines[i] + ' '; li.appendChild(span); this.ol.appendChild(li); } this.div.innerHTML = ''; } dp.sh.Highlighter.prototype.Highlight = function(code) { function Trim(str) { return str.replace(/^\s*(.*?)[\s\n]*$/g, '$1'); } function Chop(str) { return str.replace(/\n*$/, '').replace(/^\n*/, ''); } function Unindent(str) { var lines = dp.sh.Utils.FixForBlogger(str).split('\n'); var indents = new Array(); var regex = new RegExp('^\\s*', 'g'); var min = 1000; // go through every line and check for common number of indents for(var i = 0; i < lines.length && min > 0; i++) { if(Trim(lines[i]).length == 0) continue; var matches = regex.exec(lines[i]); if(matches != null && matches.length > 0) min = Math.min(matches[0].length, min); } // trim minimum common number of white space from the begining of every line if(min > 0) for(var i = 0; i < lines.length; i++) lines[i] = lines[i].substr(min); return lines.join('\n'); } // This function returns a portions of the string from pos1 to pos2 inclusive function Copy(string, pos1, pos2) { return string.substr(pos1, pos2 - pos1); } var pos = 0; if(code == null) code = ''; this.originalCode = code; this.code = Chop(Unindent(code)); this.div = this.CreateElement('DIV'); this.bar = this.CreateElement('DIV'); this.ol = this.CreateElement('OL'); this.matches = new Array(); this.div.className = 'dp-highlighter'; this.div.highlighter = this; this.bar.className = 'bar'; // set the first line this.ol.start = this.firstLine; if(this.CssClass != null) this.ol.className = this.CssClass; if(this.collapse) this.div.className += ' collapsed'; if(this.noGutter) this.div.className += ' nogutter'; // replace tabs with spaces if(this.tabsToSpaces == true) this.code = this.ProcessSmartTabs(this.code); this.ProcessRegexList(); // if no matches found, add entire code as plain text if(this.matches.length == 0) { this.AddBit(this.code, null); this.SwitchToList(); this.div.appendChild(this.bar); this.div.appendChild(this.ol); return; } // sort the matches this.matches = this.matches.sort(dp.sh.Highlighter.SortCallback); // The following loop checks to see if any of the matches are inside // of other matches. This process would get rid of highligted strings // inside comments, keywords inside strings and so on. for(var i = 0; i < this.matches.length; i++) if(this.IsInside(this.matches[i])) this.matches[i] = null; // Finally, go through the final list of matches and pull the all // together adding everything in between that isn't a match. for(var i = 0; i < this.matches.length; i++) { var match = this.matches[i]; if(match == null || match.length == 0) continue; this.AddBit(Copy(this.code, pos, match.index), null); this.AddBit(match.value, match.css); pos = match.index + match.length; } this.AddBit(this.code.substr(pos), null); this.SwitchToList(); this.div.appendChild(this.bar); this.div.appendChild(this.ol); } dp.sh.Highlighter.prototype.GetKeywords = function(str) { return '\\b' + str.replace(/ /g, '\\b|\\b') + '\\b'; } dp.sh.BloggerMode = function() { dp.sh.isBloggerMode = true; } // highlightes all elements identified by name and gets source code from specified property dp.sh.HighlightAll = function(name, showGutter /* optional */, showControls /* optional */, collapseAll /* optional */, firstLine /* optional */, showColumns /* optional */) { function FindValue() { var a = arguments; for(var i = 0; i < a.length; i++) { if(a[i] == null) continue; if(typeof(a[i]) == 'string' && a[i] != '') return a[i] + ''; if(typeof(a[i]) == 'object' && a[i].value != '') return a[i].value + ''; } return null; } function IsOptionSet(value, list) { for(var i = 0; i < list.length; i++) if(list[i] == value) return true; return false; } function GetOptionValue(name, list, defaultValue) { var regex = new RegExp('^' + name + '\\[(\\w+)\\]$', 'gi'); var matches = null; for(var i = 0; i < list.length; i++) if((matches = regex.exec(list[i])) != null) return matches[1]; return defaultValue; } function FindTagsByName(list, name, tagName) { var tags = document.getElementsByTagName(tagName); for(var i = 0; i < tags.length; i++) if(tags[i].getAttribute('name') == name) list.push(tags[i]); } var elements = []; var highlighter = null; var registered = {}; var propertyName = 'innerHTML'; // for some reason IE doesn't find

 by name, however it does see them just fine by tag name... 
    FindTagsByName(elements, name, 'pre');
    FindTagsByName(elements, name, 'textarea');

    if(elements.length == 0)
        return;

    // register all brushes
    for(var brush in dp.sh.Brushes)
    {
        var aliases = dp.sh.Brushes[brush].Aliases;

        if(aliases == null)
            continue;
        
        for(var i = 0; i < aliases.length; i++)
            registered[aliases[i]] = brush;
    }

    for(var i = 0; i < elements.length; i++)
    {
        var element = elements[i];
        var options = FindValue(
                element.attributes['class'], element.className, 
                element.attributes['language'], element.language
                );
        var language = '';
        
        if(options == null)
            continue;
        
        options = options.split(':');
        
        language = options[0].toLowerCase();

        if(registered[language] == null)
            continue;
        
        // instantiate a brush
        highlighter = new dp.sh.Brushes[registered[language]]();
        
        // hide the original element
        element.style.display = 'none';

        highlighter.noGutter = (showGutter == null) ? IsOptionSet('nogutter', options) : !showGutter;
        highlighter.addControls = (showControls == null) ? !IsOptionSet('nocontrols', options) : showControls;
        highlighter.collapse = (collapseAll == null) ? IsOptionSet('collapse', options) : collapseAll;
        highlighter.showColumns = (showColumns == null) ? IsOptionSet('showcolumns', options) : showColumns;

        // write out custom brush style
        var headNode = document.getElementsByTagName('head')[0];
        if(highlighter.Style && headNode)
        {
            var styleNode = document.createElement('style');
            styleNode.setAttribute('type', 'text/css');

            if(styleNode.styleSheet) // for IE
            {
                styleNode.styleSheet.cssText = highlighter.Style;
            }
            else // for everyone else
            {
                var textNode = document.createTextNode(highlighter.Style);
                styleNode.appendChild(textNode);
            }

            headNode.appendChild(styleNode);
        }
        
        // first line idea comes from Andrew Collington, thanks!
        highlighter.firstLine = (firstLine == null) ? parseInt(GetOptionValue('firstline', options, 1)) : firstLine;

        highlighter.Highlight(element[propertyName]);
        
        highlighter.source = element;

        element.parentNode.insertBefore(highlighter.div, element);
    }   
}