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shCore.js
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/**
* SyntaxHighlighter
* http://alexgorbatchev.com/
*
* SyntaxHighlighter is donationware. If you are using it, please donate.
* http://alexgorbatchev.com/wiki/SyntaxHighlighter:Donate
*
* @version
* 2.0.296 (March 01 2009)
*
* @copyright
* Copyright (C) 2004-2009 Alex Gorbatchev.
*
* @license
* This file is part of SyntaxHighlighter.
*
* SyntaxHighlighter 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 3 of the License, or
* (at your option) any later version.
*
* SyntaxHighlighter 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 SyntaxHighlighter. If not, see <http://www.gnu.org/licenses/>.
*/
//
// Begin anonymous function. This is used to contain local scope variables without polutting global scope.
//
if (!window.SyntaxHighlighter) var SyntaxHighlighter = function() {
// Shortcut object which will be assigned to the SyntaxHighlighter variable.
// This is a shorthand for local reference in order to avoid long namespace
// references to SyntaxHighlighter.whatever...
var sh = {
defaults : {
/** Additional CSS class names to be added to highlighter elements. */
'class-name' : '',
/** First line number. */
'first-line' : 1,
/** Font size of the SyntaxHighlighter block. */
'font-size' : null,
/** Lines to highlight. */
'highlight' : null,
/** Enables or disables smart tabs. */
'smart-tabs' : true,
/** Gets or sets tab size. */
'tab-size' : 4,
/** Enables or disables ruler. */
'ruler' : false,
/** Enables or disables gutter. */
'gutter' : true,
/** Enables or disables toolbar. */
'toolbar' : true,
/** Forces code view to be collapsed. */
'collapse' : false,
/** Enables or disables automatic links. */
'auto-links' : true,
/** Gets or sets light mode. Equavalent to turning off gutter and toolbar. */
'light' : false
},
config : {
/** Path to the copy to clipboard SWF file. */
clipboardSwf : null,
/** Width of an item in the toolbar. */
toolbarItemWidth : 16,
/** Height of an item in the toolbar. */
toolbarItemHeight : 16,
/** Blogger mode flag. */
bloggerMode : false,
/** Name of the tag that SyntaxHighlighter will automatically look for. */
tagName : 'pre',
strings : {
expandSource : 'expand source',
viewSource : 'view source',
copyToClipboard : 'copy to clipboard',
copyToClipboardConfirmation : 'The code is in your clipboard now',
print : 'print',
help : '?',
alert: 'SyntaxHighlighter\n\n',
noBrush : 'Can\'t find brush for: ',
brushNotHtmlScript : 'Brush wasn\'t configured for html-script option: ',
// this is populated by the build script
aboutDialog : '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><title>About SyntaxHighlighter</title></head><body style="font-family:Georgia,\'Times New Roman\',Times,serif;background-color:#fff;color:#000;font-size:1em;text-align:center;"><div style="text-align:center;margin-top:3em;"><div style="font-family:Geneva,Arial,Helvetica,sans-serif;font-size:xx-large;">SyntaxHighlighter</div><div style="font-size:.75em;margin-bottom:4em;"><div>version 2.0.296 (March 01 2009)</div><div><a href="http://alexgorbatchev.com" target="_blank" style="color:#0099FF;text-decoration:none;">http://alexgorbatchev.com</a></div></div><div>JavaScript code syntax highlighter.</div><div>Copyright 2004-2009 Alex Gorbatchev.</div></div></body></html>'
},
/** If true, output will show HTML produces instead. */
debug : false
},
/** Internal 'global' variables. */
vars : {
discoveredBrushes : null,
spaceWidth : null,
printFrame : null,
highlighters : {}
},
/** This object is populated by user included external brush files. */
brushes : {},
/** Common regular expressions. */
regexLib : {
multiLineCComments : /\/\*[\s\S]*?\*\//gm,
singleLineCComments : /\/\/.*$/gm,
singleLinePerlComments : /#.*$/gm,
doubleQuotedString : /"(?:\.|(\\\")|[^\""\n])*"/g,
singleQuotedString : /'(?:\.|(\\\')|[^\''\n])*'/g,
multiLineDoubleQuotedString : /"(?:\.|(\\\")|[^\""])*"/g,
multiLineSingleQuotedString : /'(?:\.|(\\\')|[^\''])*'/g,
url : /\w+:\/\/[\w-.\/?%&=]*/g,
/** <?= ?> tags. */
phpScriptTags : { left: /(<|<)\?=?/g, right: /\?(>|>)/g },
/** <%= %> tags. */
aspScriptTags : { left: /(<|<)%=?/g, right: /%(>|>)/g },
/** <script></script> tags. */
scriptScriptTags : { left: /(<|<)\s*script.*?(>|>)/gi, right: /(<|<)\/\s*script\s*(>|>)/gi }
},
toolbar : {
/**
* Creates new toolbar for a highlighter.
* @param {Highlighter} highlighter Target highlighter.
*/
create : function(highlighter)
{
var div = document.createElement('DIV'),
items = sh.toolbar.items
;
div.className = 'toolbar';
for (var name in items)
{
var constructor = items[name],
command = new constructor(highlighter),
element = command.create()
;
highlighter.toolbarCommands[name] = command;
if (element == null)
continue;
if (typeof(element) == 'string')
element = sh.toolbar.createButton(element, highlighter.id, name);
element.className += 'item ' + name;
div.appendChild(element);
}
return div;
},
/**
* Create a standard anchor button for the toolbar.
* @param {String} label Label text to display.
* @param {String} highlighterId Highlighter ID that this button would belong to.
* @param {String} commandName Command name that would be executed.
* @return {Element} Returns an 'A' element.
*/
createButton : function(label, highlighterId, commandName)
{
var a = document.createElement('a'),
style = a.style,
config = sh.config,
width = config.toolbarItemWidth,
height = config.toolbarItemHeight
;
a.href = '#' + commandName;
a.title = label;
a.highlighterId = highlighterId;
a.commandName = commandName;
a.innerHTML = label;
if (isNaN(width) == false)
style.width = width + 'px';
if (isNaN(height) == false)
style.height = height + 'px';
a.onclick = function(e)
{
try
{
sh.toolbar.executeCommand(
this,
e || window.event,
this.highlighterId,
this.commandName
);
}
catch(e)
{
sh.utils.alert(e.message);
}
return false;
};
return a;
},
/**
* Executes a toolbar command.
* @param {Element} sender Sender element.
* @param {MouseEvent} event Original mouse event object.
* @param {String} highlighterId Highlighter DIV element ID.
* @param {String} commandName Name of the command to execute.
* @return {Object} Passes out return value from command execution.
*/
executeCommand : function(sender, event, highlighterId, commandName, args)
{
var highlighter = sh.vars.highlighters[highlighterId],
command
;
if (highlighter == null || (command = highlighter.toolbarCommands[commandName]) == null)
return null;
return command.execute(sender, event, args);
},
/** Collection of toolbar items. */
items : {
expandSource : function(highlighter)
{
this.create = function()
{
if (highlighter.getParam('collapse') != true)
return;
return sh.config.strings.expandSource;
};
this.execute = function(sender, event, args)
{
var div = highlighter.div;
sender.parentNode.removeChild(sender);
div.className = div.className.replace('collapsed', '');
};
},
/**
* Command to open a new window and display the original unformatted source code inside.
*/
viewSource : function(highlighter)
{
this.create = function()
{
return sh.config.strings.viewSource;
};
this.execute = function(sender, event, args)
{
var code = sh.utils.fixForBlogger(highlighter.originalCode).replace(/</g, '<'),
wnd = sh.utils.popup('', '_blank', 750, 400, 'location=0, resizable=1, menubar=0, scrollbars=1')
;
code = sh.utils.unindent(code);
wnd.document.write('<pre>' + code + '</pre>');
wnd.document.close();
};
},
/**
* Command to copy the original source code in to the clipboard.
* Uses Flash method if <code>clipboardSwf</code> is configured.
*/
copyToClipboard : function(highlighter)
{
var flashDiv, flashSwf,
highlighterId = highlighter.id
;
this.create = function()
{
var config = sh.config;
// disable functionality if running locally
if (config.clipboardSwf == null)
return null;
function params(list)
{
var result = '';
for (var name in list)
result += "<param name='" + name + "' value='" + list[name] + "'/>";
return result;
};
function attributes(list)
{
var result = '';
for (var name in list)
result += " " + name + "='" + list[name] + "'";
return result;
};
var args1 = {
width : config.toolbarItemWidth,
height : config.toolbarItemHeight,
id : highlighterId + '_clipboard',
type : 'application/x-shockwave-flash',
title : sh.config.strings.copyToClipboard
},
// these arguments are used in IE's <param /> collection
args2 = {
allowScriptAccess : 'always',
wmode : 'transparent',
flashVars : 'highlighterId=' + highlighterId,
menu : 'false'
},
swf = config.clipboardSwf,
html
;
if (/msie/i.test(navigator.userAgent))
{
html = '<object'
+ attributes({
classid : 'clsid:d27cdb6e-ae6d-11cf-96b8-444553540000',
codebase : 'http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=9,0,0,0'
})
+ attributes(args1)
+ '>'
+ params(args2)
+ params({ movie : swf })
+ '</object>'
;
}
else
{
html = '<embed'
+ attributes(args1)
+ attributes(args2)
+ attributes({ src : swf })
+ '/>'
;
}
flashDiv = document.createElement('div');
flashDiv.innerHTML = html;
return flashDiv;
};
this.execute = function(sender, event, args)
{
var command = args.command;
switch (command)
{
case 'get':
var code = sh.utils.unindent(
sh.utils.fixForBlogger(highlighter.originalCode)
.replace(/</g, '<')
.replace(/>/g, '>')
.replace(/&/g, '&')
);
if(window.clipboardData)
// will fall through to the confirmation because there isn't a break
window.clipboardData.setData('text', code);
else
return sh.utils.unindent(code);
case 'ok':
sh.utils.alert(sh.config.strings.copyToClipboardConfirmation);
break;
case 'error':
sh.utils.alert(args.message);
break;
}
};
},
/** Command to print the colored source code. */
printSource : function(highlighter)
{
this.create = function()
{
return sh.config.strings.print;
};
this.execute = function(sender, event, args)
{
var iframe = document.createElement('IFRAME'),
doc = null
;
// make sure there is never more than one hidden iframe created by SH
if (sh.vars.printFrame != null)
document.body.removeChild(sh.vars.printFrame);
sh.vars.printFrame = iframe;
// this hides the iframe
iframe.style.cssText = 'position:absolute;width:0px;height:0px;left:-500px;top:-500px;';
document.body.appendChild(iframe);
doc = iframe.contentWindow.document;
copyStyles(doc, window.document);
doc.write('<div class="' + highlighter.div.className.replace('collapsed', '') + ' printing">' + highlighter.div.innerHTML + '</div>');
doc.close();
iframe.contentWindow.focus();
iframe.contentWindow.print();
function copyStyles(destDoc, sourceDoc)
{
var links = sourceDoc.getElementsByTagName('link');
for(var i = 0; i < links.length; i++)
if(links[i].rel.toLowerCase() == 'stylesheet' && /shCore\.css$/.test(links[i].href))
destDoc.write('<link type="text/css" rel="stylesheet" href="' + links[i].href + '"></link>');
};
};
},
/** Command to display the about dialog window. */
about : function(highlighter)
{
this.create = function()
{
return sh.config.strings.help;
};
this.execute = function(sender, event)
{
var wnd = sh.utils.popup('', '_blank', 500, 250, 'scrollbars=0'),
doc = wnd.document
;
doc.write(sh.config.strings.aboutDialog);
doc.close();
wnd.focus();
};
}
}
},
utils : {
guid : function(prefix)
{
return prefix + Math.round(Math.random() * 1000000).toString();
},
/**
* Merges two objects. Values from obj2 override values in obj1.
* Function is NOT recursive and works only for one dimensional objects.
* @param {Object} obj1 First object.
* @param {Object} obj2 Second object.
* @return {Object} Returns combination of both objects.
*/
merge: function(obj1, obj2)
{
var result = {}, name;
for (name in obj1)
result[name] = obj1[name];
for (name in obj2)
result[name] = obj2[name];
return result;
},
/**
* Attempts to convert string to boolean.
* @param {String} value Input string.
* @return {Boolean} Returns true if input was "true", false if input was "false" and value otherwise.
*/
toBoolean: function(value)
{
switch (value)
{
case "true":
return true;
case "false":
return false;
}
return value;
},
/**
* Opens up a centered popup window.
* @param {String} url URL to open in the window.
* @param {String} name Popup name.
* @param {int} width Popup width.
* @param {int} height Popup height.
* @param {String} options window.open() options.
* @return {Window} Returns window instance.
*/
popup: function(url, name, width, height, options)
{
var x = (screen.width - width) / 2,
y = (screen.height - height) / 2
;
options += ', left=' + x +
', top=' + y +
', width=' + width +
', height=' + height
;
options = options.replace(/^,/, '');
var win = window.open(url, name, options);
win.focus();
return win;
},
/**
* Adds event handler to the target object.
* @param {Object} obj Target object.
* @param {String} type Name of the event.
* @param {Function} func Handling function.
*/
addEvent: function(obj, type, func)
{
if (obj.attachEvent)
{
obj['e' + type + func] = func;
obj[type + func] = function()
{
obj['e' + type + func](window.event);
}
obj.attachEvent('on' + type, obj[type + func]);
}
else
{
obj.addEventListener(type, func, false);
}
},
/**
* Displays an alert.
* @param {String} str String to display.
*/
alert: function(str)
{
alert(sh.config.strings.alert + str)
},
/**
* Finds a brush by its alias.
*
* @param {String} alias Brush alias.
* @param {Boolean} alert Suppresses the alert if false.
* @return {Brush} Returns bursh constructor if found, null otherwise.
*/
findBrush: function(alias, alert)
{
var brushes = sh.vars.discoveredBrushes,
result = null
;
if (brushes == null)
{
brushes = {};
// Find all brushes
for (var brush in sh.brushes)
{
var aliases = sh.brushes[brush].aliases;
if (aliases == null)
continue;
for (var i = 0; i < aliases.length; i++)
brushes[aliases[i]] = brush;
}
sh.vars.discoveredBrushes = brushes;
}
result = sh.brushes[brushes[alias]];
if (result == null && alert != false)
sh.utils.alert(sh.config.strings.noBrush + alias);
return result;
},
/**
* Executes a callback on each line and replaces each line with result from the callback.
* @param {Object} str Input string.
* @param {Object} callback Callback function taking one string argument and returning a string.
*/
eachLine: function(str, callback)
{
var lines = str.split('\n');
for (var i = 0; i < lines.length; i++)
lines[i] = callback(lines[i]);
return lines.join('\n');
},
/**
* Creates rules looking div.
*/
createRuler: function()
{
var div = document.createElement('div'),
ruler = document.createElement('div'),
showEvery = 10,
i = 1
;
while (i <= 150)
{
if (i % showEvery === 0)
{
div.innerHTML += i;
i += (i + '').length;
}
else
{
div.innerHTML += '·';
i++;
}
}
ruler.className = 'ruler line';
ruler.appendChild(div);
return ruler;
},
/**
* This is a special trim which only removes first and last empty lines
* and doesn't affect valid leading space on the first line.
*
* @param {String} str Input string
* @return {String} Returns string without empty first and last lines.
*/
trimFirstAndLastLines: function(str)
{
return str.replace(/^[ ]*[\n]+|[\n]*[ ]*$/g, '');
},
/**
* Parses key/value pairs into hash object.
*
* Understands the following formats:
* - name: word;
* - name: [word, word];
* - name: "string";
* - name: 'string';
*
* For example:
* name1: value; name2: [value, value]; name3: 'value'
*
* @param {String} str Input string.
* @return {Object} Returns deserialized object.
*/
parseParams: function(str)
{
var match,
result = {},
arrayRegex = new XRegExp("^\\[(?<values>(.*?))\\]$"),
regex = new XRegExp(
"(?<name>[\\w-]+)" +
"\\s*:\\s*" +
"(?<value>" +
"[\\w-%#]+|" + // word
"\\[.*?\\]|" + // [] array
'".*?"|' + // "" string
"'.*?'" + // '' string
")\\s*;?",
"g"
)
;
while ((match = regex.exec(str)) != null)
{
var value = match.value
.replace(/^['"]|['"]$/g, '') // strip quotes from end of strings
;
// try to parse array value
if (value != null && arrayRegex.test(value))
{
var m = arrayRegex.exec(value);
value = m.values.length > 0 ? m.values.split(/\s*,\s*/) : [];
}
result[match.name] = value;
}
return result;
},
/**
* Wraps each line of the string into <code/> tag with given style applied to it.
*
* @param {String} str Input string.
* @param {String} css Style name to apply to the string.
* @return {String} Returns input string with each line surrounded by <span/> tag.
*/
decorate: function(str, css)
{
if (str == null || str.length == 0 || str == '\n')
return str;
str = str.replace(/</g, '<');
// Replace two or more sequential spaces with leaving last space untouched.
str = str.replace(/ {2,}/g, function(m)
{
var spaces = '';
for (var i = 0; i < m.length - 1; i++)
spaces += ' ';
return spaces + ' ';
});
// Split each line and apply <span class="...">...</span> to them so that
// leading spaces aren't included.
if (css != null)
str = sh.utils.eachLine(str, function(line)
{
if (line.length == 0)
return '';
var spaces = '';
line = line.replace(/^( | )+/, function(s)
{
spaces = s;
return '';
});
if (line.length == 0)
return spaces;
return spaces + '<code class="' + css + '">' + line + '</code>';
});
return str;
},
/**
* Pads number with zeros until it's length is the same as given length.
*
* @param {Number} number Number to pad.
* @param {Number} length Max string length with.
* @return {String} Returns a string padded with proper amount of '0'.
*/
padNumber : function(number, length)
{
var result = number.toString();
while (result.length < length)
result = '0' + result;
return result;
},
/**
* Measures width of a single space character.
* @return {Number} Returns width of a single space character.
*/
measureSpace : function()
{
var container = document.createElement('div'),
span,
result = 0,
body = document.body,
id = sh.utils.guid('measureSpace'),
// variable names will be compressed, so it's better than a plain string
divOpen = '<div class="',
closeDiv = '</div>',
closeSpan = '</span>'
;
// we have to duplicate highlighter nested structure in order to get an acurate space measurment
container.innerHTML =
divOpen + 'syntaxhighlighter">'
+ divOpen + 'lines">'
+ divOpen + 'line">'
+ divOpen + 'content'
+ '"><span class="block"><span id="' + id + '"> ' + closeSpan + closeSpan
+ closeDiv
+ closeDiv
+ closeDiv
+ closeDiv
;
body.appendChild(container);
span = document.getElementById(id);
if (/opera/i.test(navigator.userAgent))
{
var style = window.getComputedStyle(span, null);
result = parseInt(style.getPropertyValue("width"));
}
else
{
result = span.offsetWidth;
}
body.removeChild(container);
return result;
},
/**
* Replaces tabs with spaces.
*
* @param {String} code Source code.
* @param {Number} tabSize Size of the tab.
* @return {String} Returns code with all tabs replaces by spaces.
*/
processTabs : function(code, tabSize)
{
var tab = '';
for (var i = 0; i < tabSize; i++)
tab += ' ';
return code.replace(/\t/g, tab);
},
/**
* Replaces tabs with smart spaces.
*
* @param {String} code Code to fix the tabs in.
* @param {Number} tabSize Number of spaces in a column.
* @return {String} Returns code with all tabs replaces with roper amount of spaces.
*/
processSmartTabs : function(code, tabSize)
{
var lines = code.split('\n'),
tab = '\t',
spaces = ''
;
// Create a string with 1000 spaces to copy spaces from...
// It's assumed that there would be no indentation longer than that.
for (var i = 0; i < 50; i++)
spaces += ' '; // 20 spaces * 50
// This function inserts specified amount of spaces in the string
// where a tab is while removing that given tab.
function insertSpaces(line, pos, count)
{
return line.substr(0, pos)
+ spaces.substr(0, count)
+ line.substr(pos + 1, line.length) // pos + 1 will get rid of the tab
;
};
// Go through all the lines and do the 'smart tabs' magic.
code = sh.utils.eachLine(code, function(line)
{
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;
});
return code;
},
fixForBlogger : function(str)
{
return (sh.config.bloggerMode == true) ? str.replace(/<br\s*\/?>|<br\s*\/?>/gi, '\n') : str;
},
/**
* Removes all white space at the begining and end of a string.
*
* @param {String} str String to trim.
* @return {String} Returns string without leading and following white space characters.
*/
trim: function(str)
{
return str.replace(/\s*$/g, '').replace(/^\s*/, '');
},
/**
* Unindents a block of text by the lowest common indent amount.
* @param {String} str Text to unindent.
* @return {String} Returns unindented text block.
*/
unindent: function(str)
{
var lines = sh.utils.fixForBlogger(str).split('\n'),
indents = new Array(),
regex = /^\s*/,
min = 1000
;
// go through every line and check for common number of indents
for (var i = 0; i < lines.length && min > 0; i++)
{
var line = lines[i];
if (sh.utils.trim(line).length == 0)
continue;
var matches = regex.exec(line);
// In the event that just one line doesn't have leading white space
// we can't unindent anything, so bail completely.
if (matches == null)
return str;
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');
},
/**
* Callback method for Array.sort() which sorts matches by
* index position and then by length.
*
* @param {Match} m1 Left object.
* @param {Match} m2 Right object.
* @return {Number} Returns -1, 0 or -1 as a comparison result.
*/
matchesSortCallback: 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;
},
/**
* Executes given regular expression on provided code and returns all
* matches that are found.