/** * Code Syntax Highlighter. Version 1.1.0 * Copyright (C) 2004 Dream Projections Inc. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version 2 * of the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * ** * Usage example: * * * * * * * * ** * History: * 1.1.0 - March 23rd, 2005 * - split brushes into separate files * - now works in Safari * - added missing strings to PHP matches * * 1.0.4 - February 2nd, 2005 * - added Delphi & Python * - multi-line comments fixed * - language name can be set through w3c valid 'class' attribute * - HighlightAll(name, [showGutter], [showTools]) * * 1.0.3 - December 31th, 2004 (added PHP & SQL) * 1.0.2 - December 28th, 2004 (refactoring with namespaces) * 1.0.1 - December 14th, 2004 * 1.0.0 - November 13th, 2004 */ // create namespaces var dp = { sh : // dp.sh { Utils : {}, // dp.sh.Utils Brushes : {} // dp.sh.Brushes } }; dp.sh.Config = { Version : '1.1.0', About : 'About...
dp.SyntaxHighlighter
Version: {V}
©2004-2005 Dream Projections Inc. All right reserved.
' }; dp.SyntaxHighlighter = dp.sh; // opens a new windows and puts the original unformatted source code inside. dp.sh.Utils.ViewSource = function(sender) { var code = sender.parentNode.originalCode; var wnd = window.open('', '_blank', 'width=750, height=400, location=0, resizable=1, menubar=0, scrollbars=1'); code = code.replace(/' + code + ''); wnd.document.close(); } // copies the original source code in to the clipboard (IE only) dp.sh.Utils.ToClipboard = function(sender) { var code = sender.parentNode.originalCode; // This works only for IE. There's a way to make it work with Mozilla as well, // but it requires security settings changed on the client, which isn't by // default, so 99% of users won't have it working anyways. if(window.clipboardData) { window.clipboardData.setData('text', code); alert('The code is in your clipboard now.'); } } // creates an invisible iframe, puts the original source code inside and prints it dp.sh.Utils.PrintSource = function(sender) { var td = sender.parentNode; var code = td.processedCode; var iframe = document.createElement('iframe'); var doc = null; var wnd = // this hides the iframe iframe.style.cssText = 'position:absolute; width:0px; height:0px; left:-5px; top:-5px;'; td.appendChild(iframe); doc = iframe.contentWindow.document; code = code.replace(/' + code + ''); doc.close(); iframe.contentWindow.focus(); iframe.contentWindow.print(); td.removeChild(iframe); } dp.sh.Utils.About = function() { var wnd = window.open('', '_blank', 'dialog, width=320, height=150'); var doc = wnd.document; var styles = document.getElementsByTagName('style'); var links = document.getElementsByTagName('link'); doc.write(dp.sh.Config.About.replace('{V}', dp.sh.Config.Version)); // copy over ALL the styles from the parent page for(var i = 0; i < styles.length; i++) doc.write(''); for(var i = 0; i < links.length; i++) if(links[i].rel.toLowerCase() == 'stylesheet') doc.write(''); doc.close(); wnd.focus(); } // creates a new match object dp.sh.Match = function(value, index, css) { this.value = value; this.index = index; this.length = value.length; this.css = css; } dp.sh.Highlighter = function() { this.addGutter = true; this.addControls = true; this.tabsToSpaces = 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; } // 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) { var span = document.createElement('span'); str = str.replace(/&/g, '&'); str = str.replace(/ /g, ' '); str = str.replace(/'); // 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) { var regex = new RegExp('
', 'gi'); if(regex.test(str)) { var lines = str.split(' 
'); str = ''; for(var i = 0; i < lines.length; i++) { span = document.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(document.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 another dp.sh.Highlighter.prototype.IsInside = function(match) { if(match == null || match.length == 0) { return; } 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++) { var line = lines[i]; result += ProcessLine(line, tabSize) + '\n'; } return result; } dp.sh.Highlighter.prototype.SwitchToTable = function() { // Safari fix: for some reason lowercase
isn't getting picked up, even though 'i' is set var lines = this.div.innerHTML.split(/
/gi); var row = null; var cell = null; var html = ''; var pipe = ' | '; // creates an anchor to a utility function UtilHref(util, text) { return '' + text + ''; } row = this.table.insertRow(-1); if(this.addGutter == true) { cell = row.insertCell(-1); cell.className = 'tools-corner'; } if(this.addControls == true) { cell = row.insertCell(-1); cell.originalCode = this.originalCode; cell.processedCode = this.code; cell.className = 'tools'; cell.innerHTML = UtilHref('ViewSource', 'view plain') + pipe + UtilHref('PrintSource', 'print'); if(window.clipboardData) { cell.innerHTML += pipe + UtilHref('ToClipboard', 'copy to clipboard'); } cell.innerHTML += pipe + UtilHref('About', '?'); } for(var i = 0; i < lines.length - 1; i++) { row = this.table.insertRow(-1); if(this.addGutter == true) { cell = row.insertCell(-1); cell.className = 'gutter'; cell.innerHTML = i + 1; } cell = row.insertCell(-1); cell.className = 'line'; cell.innerHTML = lines[i]; } this.div.innerHTML = ''; } dp.sh.Highlighter.prototype.Highlight = function(code) { // This function strips all new lines and spaces // from the beging and end of the string . function Trim(str) { var begining = new RegExp('^[\\s\\n]', 'g'); var end = new RegExp('[\\s\\n]$', 'g'); while(begining.test(str)) { str = str.substr(1); } while(end.test(str)) { str = str.substr(0, str.length - 1); } return str; } // 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; this.originalCode = code; this.code = Trim(code); this.div = document.createElement('div'); this.table = document.createElement('table'); this.matches = new Array(); if(this.CssClass != null) { this.table.className = this.CssClass; } // replace tabs with spaces if(this.tabsToSpaces == true) { this.code = this.ProcessSmartTabs(this.code); } this.table.border = 0; this.table.cellSpacing = 0; this.table.cellPadding = 0; this.ProcessRegexList(); // if no matches found, do nothing if(this.matches.length == 0) { 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 highligting 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.SwitchToTable(); } dp.sh.Highlighter.prototype.GetKeywords = function(str) { return '\\b' + str.replace(/ /g, '\\b|\\b') + '\\b'; } // highlightes all elements identified by name and gets source code from specified property dp.sh.HighlightAll = function(name, showGutter /* optional */, showControls /* optional */) { var elements = document.getElementsByName(name); var highlighter = null; var registered = new Object(); var propertyName = 'value'; function FindValue() { var a = arguments; for(var i = 0; i < a.length; i++) if(a[i] != null && ((typeof(a[i]) == 'string' && a[i] != '') || (typeof(a[i]) == 'object' && a[i].value != ''))) return a[i]; return null; } if(elements == null) { return; } // if showGutter isn't set, default to TRUE if(showGutter == null) { showGutter = true; } // if showControls isn't set, default to TRUE if(showControls == null) { showControls = true; } // 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 language = FindValue(element.attributes['class'], element.className, element.attributes['language'], element.language); if(language == null) continue; if(language.value) language = language.value; language = (language + '').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.addGutter = showGutter; highlighter.addControls = showControls; highlighter.Highlight(element[propertyName]); // place the result table inside a div var div = document.createElement('div'); div.className = 'dp-highlighter'; div.appendChild(highlighter.table); element.parentNode.insertBefore(div, element); } }