/**
* Code Syntax Highlighter.
* Version 1.3.0
* Copyright (C) 2004 Alex Gorbatchev.
* http://www.dreamprojections.com/syntaxhighlighter/
*
* This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General
* Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option)
* any later version.
*
* This library 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 Lesser General Public License for more
* details.
*
* You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to
* the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
//
// create namespaces
//
var dp = {
sh : // dp.sh
{
Utils : {}, // dp.sh.Utils
Brushes : {}, // dp.sh.Brushes
Strings : {},
Version : '1.3.0'
}
};
dp.sh.Strings = {
AboutDialog : 'About...
',
// tools
ExpandCode : '+ expand code',
ViewPlain : 'view plain',
Print : 'print',
CopyToClipboard : 'copy to clipboard',
About : '?',
CopiedToClipboard : 'The code is in your clipboard now.'
};
dp.SyntaxHighlighter = dp.sh;
//
// Dialog and toolbar functions
//
dp.sh.Utils.Expand = function(sender)
{
var table = sender;
var span = sender;
// find the span in which the text label and pipe contained so we can hide it
while(span != null && span.tagName != 'SPAN')
span = span.parentNode;
// find the table
while(table != null && table.tagName != 'TABLE')
table = table.parentNode;
// remove the 'expand code' button
span.parentNode.removeChild(span);
table.tBodies[0].className = 'show';
table.parentNode.style.height = '100%'; // containing div isn't getting updated properly when the TBODY is shown
}
// 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(dp.sh.Strings.CopiedToClipboard);
}
}
// 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,scrollbars=0');
var doc = wnd.document;
var styles = document.getElementsByTagName('style');
var links = document.getElementsByTagName('link');
doc.write(dp.sh.Strings.AboutDialog.replace('{V}', dp.sh.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();
}
//
// 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.addGutter = true;
this.addControls = true;
this.collapse = false;
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 any other match
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++)
result += ProcessLine(lines[i], tabSize) + '\n';
return result;
}
dp.sh.Highlighter.prototype.SwitchToTable = 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');
var row = null;
var cell = null;
var tBody = null;
var html = '';
var pipe = ' | ';
// creates an anchor to a utility
function UtilHref(util, text)
{
return '' + text + '';
}
tBody = document.createElement('TBODY'); // can be created and all others go to tBodies collection.
this.table.appendChild(tBody);
if(this.addGutter == true)
{
row = tBody.insertRow(-1);
cell = row.insertCell(-1);
cell.className = 'tools-corner';
}
if(this.addControls == true)
{
var tHead = document.createElement('THEAD'); // controls will be placed in here
this.table.appendChild(tHead);
row = tHead.insertRow(-1);
// add corner if there's a gutter
if(this.addGutter == true)
{
cell = row.insertCell(-1);
cell.className = 'tools-corner';
}
cell = row.insertCell(-1);
// preserve some variables for the controls
cell.originalCode = this.originalCode;
cell.processedCode = this.code;
cell.className = 'tools';
if(this.collapse == true)
{
tBody.className = 'hide';
cell.innerHTML += '' + UtilHref('Expand', dp.sh.Strings.ExpandCode) + '' + pipe + '';
}
cell.innerHTML += UtilHref('ViewSource', dp.sh.Strings.ViewPlain) + pipe + UtilHref('PrintSource', dp.sh.Strings.Print);
// IE has this clipboard object which is easy enough to use
if(window.clipboardData)
cell.innerHTML += pipe + UtilHref('ToClipboard', dp.sh.Strings.CopyToClipboard);
cell.innerHTML += pipe + UtilHref('About', dp.sh.Strings.About);
}
for(var i = 0, lineIndex = this.firstLine; i < lines.length - 1; i++, lineIndex++)
{
row = tBody.insertRow(-1);
if(this.addGutter == true)
{
cell = row.insertCell(-1);
cell.className = 'gutter';
cell.innerHTML = lineIndex;
}
cell = row.insertCell(-1);
cell.className = 'line' + (i % 2 + 1); // uses .line1 and .line2 css styles for alternating lines
cell.innerHTML = lines[i];
}
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 = 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;
this.originalCode = code;
this.code = Chop(Unindent(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, add entire code as plain text
if(this.matches.length == 0)
{
this.AddBit(this.code, null);
this.SwitchToTable();
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 */, collapseAll /* optional */, firstLine /* 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;
}
var elements = document.getElementsByName(name);
var highlighter = null;
var registered = new Object();
var propertyName = 'value';
// if no code blocks found, leave
if(elements == null)
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.addGutter = (showGutter == null) ? !IsOptionSet('nogutter', options) : showGutter;
highlighter.addControls = (showControls == null) ? !IsOptionSet('nocontrols', options) : showControls;
highlighter.collapse = (collapseAll == null) ? IsOptionSet('collapse', options) : collapseAll;
// first line idea comes from Andrew Collington, thanks!
highlighter.firstLine = (firstLine == null) ? parseInt(GetOptionValue('firstline', options, 1)) : firstLine;
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);
}
}