forked from syntaxhighlighter/syntaxhighlighter
/
big_file.html
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big_file.html
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title>SyntaxHighlighter Large File Demo</title>
<script type="text/javascript" src="../scripts/XRegExp.js"></script> <!-- XRegExp is bundled with the final shCore.js during build -->
<script type="text/javascript" src="../scripts/shCore.js"></script>
<script type="text/javascript" src="../scripts/shBrushJScript.js"></script>
<link type="text/css" rel="stylesheet" href="../styles/shCore.css"/>
<link type="text/css" rel="Stylesheet" href="../styles/shThemeDefault.css" />
<script type="text/javascript">SyntaxHighlighter.all();</script>
</head>
<body>
<h1>SyntaxHighlighter Large File Demo</h1>
<p>
This demo shows the speed of SyntaxHighlighter and ability to render large files.
</p>
<script type="syntaxhighlighter" class="brush: js;"><![CDATA[
//
// 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,
/**
* Pads line numbers. Possible values are:
*
* false - don't pad line numbers.
* true - automaticaly pad numbers with minimum required number of leading zeroes.
* [int] - length up to which pad line numbers.
*/
'pad-line-numbers' : false,
/** Lines to highlight. */
'highlight' : null,
/** Title to be displayed above the code block. */
'title' : null,
/** Enables or disables smart tabs. */
'smart-tabs' : true,
/** Gets or sets tab size. */
'tab-size' : 4,
/** Enables or disables gutter. */
'gutter' : true,
/** Enables or disables toolbar. */
'toolbar' : true,
/** Enables quick code copy and paste from double click. */
'quick-code' : 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,
'html-script' : false
},
config : {
/** Maximum milliseconds between mouse clicks to consider a double click. */
doubleClickSpeed : 300,
/** Enables use of <SCRIPT type="syntaxhighlighter" /> tags. */
useScriptTags : true,
/** Blogger mode flag. */
bloggerMode : false,
stripBrs : false,
/** Name of the tag that SyntaxHighlighter will automatically look for. */
tagName : 'pre',
strings : {
expandSource : 'expand',
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 : '@ABOUT@'
}
},
/** Internal 'global' variables. */
vars : {
discoveredBrushes : 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,
xmlComments : /(<|<)!--[\s\S]*?--(>|>)/gm,
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: {
/**
* Generates HTML markup for the toolbar.
* @param {Highlighter} highlighter Highlighter instance.
* @return {String} Returns HTML markup.
*/
getHtml: function(highlighter)
{
var html = '<div class="toolbar">',
items = sh.toolbar.items,
list = items.list
;
function defaultGetHtml(highlighter, name)
{
return sh.toolbar.getButtonHtml(highlighter, name, sh.config.strings[name]);
};
for (var i = 0; i < list.length; i++)
html += (items[list[i]].getHtml || defaultGetHtml)(highlighter, list[i]);
html += '</div>';
return html;
},
/**
* Generates HTML markup for a regular button in the toolbar.
* @param {Highlighter} highlighter Highlighter instance.
* @param {String} commandName Command name that would be executed.
* @param {String} label Label text to display.
* @return {String} Returns HTML markup.
*/
getButtonHtml: function(highlighter, commandName, label)
{
return '<span><a href="#" class="toolbar_item'
+ ' command_' + commandName
+ ' ' + commandName
+ '">' + label + '</a></span>'
;
},
/**
* Event handler for a toolbar anchor.
*/
handler: function(e)
{
var target = e.target,
className = target.className || ''
;
function getValue(name)
{
var r = new RegExp(name + '_(\\w+)'),
match = r.exec(className)
;
return match ? match[1] : null;
};
var highlighter = getHighlighterById(findParentElement(target, '.syntaxhighlighter').id),
commandName = getValue('command')
;
// execute the toolbar command
if (highlighter && commandName)
sh.toolbar.items[commandName].execute(highlighter);
// disable default A click behaviour
e.preventDefault();
},
/** Collection of toolbar items. */
items : {
// Ordered lis of items in the toolbar. Can't expect `for (var n in items)` to be consistent.
list: ['expandSource', 'help'],
expandSource: {
getHtml: function(highlighter)
{
if (highlighter.getParam('collapse') != true)
return '';
var title = highlighter.getParam('title');
return sh.toolbar.getButtonHtml(highlighter, 'expandSource', title ? title : sh.config.strings.expandSource);
},
execute: function(highlighter)
{
var div = getHighlighterDivById(highlighter.id);
removeClass(div, 'collapsed');
}
},
/** Command to display the about dialog window. */
help: {
execute: function(highlighter)
{
var wnd = popup('', '_blank', 500, 250, 'scrollbars=0'),
doc = wnd.document
;
doc.write(sh.config.strings.aboutDialog);
doc.close();
wnd.focus();
}
}
}
},
/**
* Finds all elements on the page which should be processes by SyntaxHighlighter.
*
* @param {Object} globalParams Optional parameters which override element's
* parameters. Only used if element is specified.
*
* @param {Object} element Optional element to highlight. If none is
* provided, all elements in the current document
* are returned which qualify.
*
* @return {Array} Returns list of <code>{ target: DOMElement, params: Object }</code> objects.
*/
findElements: function(globalParams, element)
{
var elements = element ? [element] : toArray(document.getElementsByTagName(sh.config.tagName)),
conf = sh.config,
result = []
;
// support for <SCRIPT TYPE="syntaxhighlighter" /> feature
if (conf.useScriptTags)
elements = elements.concat(getSyntaxHighlighterScriptTags());
if (elements.length === 0)
return result;
for (var i = 0; i < elements.length; i++)
{
var item = {
target: elements[i],
// local params take precedence over globals
params: merge(globalParams, parseParams(elements[i].className))
};
if (item.params['brush'] == null)
continue;
result.push(item);
}
return result;
},
/**
* Shorthand to highlight all elements on the page that are marked as
* SyntaxHighlighter source code.
*
* @param {Object} globalParams Optional parameters which override element's
* parameters. Only used if element is specified.
*
* @param {Object} element Optional element to highlight. If none is
* provided, all elements in the current document
* are highlighted.
*/
highlight: function(globalParams, element)
{
var elements = this.findElements(globalParams, element),
propertyName = 'innerHTML',
highlighter = null,
conf = sh.config
;
if (elements.length === 0)
return;
for (var i = 0; i < elements.length; i++)
{
var element = elements[i],
target = element.target,
params = element.params,
brushName = params.brush,
code
;
if (brushName == null)
continue;
// Instantiate a brush
if (params['html-script'] == 'true' || sh.defaults['html-script'] == true)
{
highlighter = new sh.HtmlScript(brushName);
brushName = 'htmlscript';
}
else
{
var brush = findBrush(brushName);
if (brush)
highlighter = new brush();
else
continue;
}
code = target[propertyName];
// remove CDATA from <SCRIPT/> tags if it's present
if (conf.useScriptTags)
code = stripCData(code);
// Inject title if the attribute is present
if ((target.title || '') != '')
params.title = target.title;
params['brush'] = brushName;
highlighter.init(params);
element = highlighter.getDiv(code);
target.parentNode.replaceChild(element, target);
}
},
/**
* Main entry point for the SyntaxHighlighter.
* @param {Object} params Optional params to apply to all highlighted elements.
*/
all: function(params)
{
attachEvent(
window,
'load',
function() { sh.highlight(params); }
);
}
}; // end of sh
/**
* Checks if target DOM elements has specified CSS class.
* @param {DOMElement} target Target DOM element to check.
* @param {String} className Name of the CSS class to check for.
* @return {Boolean} Returns true if class name is present, false otherwise.
*/
function hasClass(target, className)
{
return target.className.indexOf(className) != -1;
};
/**
* Adds CSS class name to the target DOM element.
* @param {DOMElement} target Target DOM element.
* @param {String} className New CSS class to add.
*/
function addClass(target, className)
{
if (!hasClass(target, className))
target.className += ' ' + className;
};
/**
* Removes CSS class name from the target DOM element.
* @param {DOMElement} target Target DOM element.
* @param {String} className CSS class to remove.
*/
function removeClass(target, className)
{
target.className = target.className.replace(className, '');
};
/**
* Converts the source to array object. Mostly used for function arguments and
* lists returned by getElementsByTagName() which aren't Array objects.
* @param {List} source Source list.
* @return {Array} Returns array.
*/
function toArray(source)
{
var result = [];
for (var i = 0; i < source.length; i++)
result.push(source[i]);
return result;
};
/**
* Splits block of text into lines.
* @param {String} block Block of text.
* @return {Array} Returns array of lines.
*/
function splitLines(block)
{
return block.split('\n');
}
/**
* Generates HTML ID for the highlighter.
* @param {String} highlighterId Highlighter ID.
* @return {String} Returns HTML ID.
*/
function getHighlighterId(id)
{
var prefix = 'highlighter_';
return id.indexOf(prefix) == 0 ? id : prefix + id;
};
/**
* Finds Highlighter instance by ID.
* @param {String} highlighterId Highlighter ID.
* @return {Highlighter} Returns instance of the highlighter.
*/
function getHighlighterById(id)
{
return sh.vars.highlighters[getHighlighterId(id)];
};
/**
* Finds highlighter's DIV container.
* @param {String} highlighterId Highlighter ID.
* @return {Element} Returns highlighter's DIV element.
*/
function getHighlighterDivById(id)
{
return document.getElementById(getHighlighterId(id));
};
/**
* Stores highlighter so that getHighlighterById() can do its thing. Each
* highlighter must call this method to preserve itself.
* @param {Highilghter} highlighter Highlighter instance.
*/
function storeHighlighter(highlighter)
{
sh.vars.highlighters[getHighlighterId(highlighter.id)] = highlighter;
};
/**
* Looks for a child or parent node which has specified classname.
* Equivalent to jQuery's $(container).find(".className")
* @param {Element} target Target element.
* @param {String} search Class name or node name to look for.
* @param {Boolean} reverse If set to true, will go up the node tree instead of down.
* @return {Element} Returns found child or parent element on null.
*/
function findElement(target, search, reverse /* optional */)
{
if (target == null)
return null;
var nodes = reverse != true ? target.childNodes : [ target.parentNode ],
propertyToFind = { '#' : 'id', '.' : 'className' }[search.substr(0, 1)] || 'nodeName',
expectedValue,
found
;
expectedValue = propertyToFind != 'nodeName'
? search.substr(1)
: search.toUpperCase()
;
// main return of the found node
if ((target[propertyToFind] || '').indexOf(expectedValue) != -1)
return target;
for (var i = 0; nodes && i < nodes.length && found == null; i++)
found = findElement(nodes[i], search, reverse);
return found;
};
/**
* Looks for a parent node which has specified classname.
* This is an alias to <code>findElement(container, className, true)</code>.
* @param {Element} target Target element.
* @param {String} className Class name to look for.
* @return {Element} Returns found parent element on null.
*/
function findParentElement(target, className)
{
return findElement(target, className, true);
};
/**
* Finds an index of element in the array.
* @ignore
* @param {Object} searchElement
* @param {Number} fromIndex
* @return {Number} Returns index of element if found; -1 otherwise.
*/
function indexOf(array, searchElement, fromIndex)
{
fromIndex = Math.max(fromIndex || 0, 0);
for (var i = fromIndex; i < array.length; i++)
if(array[i] == searchElement)
return i;
return -1;
};
/**
* Generates a unique element ID.
*/
function guid(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.
*/
function merge(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.
*/
function toBoolean(value)
{
var result = { "true" : true, "false" : false }[value];
return result == null ? value : result;
};
/**
* 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.
*/
function popup(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.
*/
function attachEvent(obj, type, func, scope)
{
function handler(e)
{
e = e || window.event;
if (!e.target)
{
e.target = e.srcElement;
e.preventDefault = function()
{
this.returnValue = false;
};
}
func.call(scope || window, e);
};
if (obj.attachEvent)
{
obj.attachEvent('on' + type, handler);
}
else
{
obj.addEventListener(type, handler, false);
}
};
/**
* Displays an alert.
* @param {String} str String to display.
*/
function alert(str)
{
window.alert(sh.config.strings.alert + str);
};
/**
* Finds a brush by its alias.
*
* @param {String} alias Brush alias.
* @param {Boolean} showAlert Suppresses the alert if false.
* @return {Brush} Returns bursh constructor if found, null otherwise.
*/
function findBrush(alias, showAlert)
{
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;
// keep the brush name
sh.brushes[brush].name = brush.toLowerCase();
for (var i = 0; i < aliases.length; i++)
brushes[aliases[i]] = brush;
}
sh.vars.discoveredBrushes = brushes;
}
result = sh.brushes[brushes[alias]];
if (result == null && showAlert != false)
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.
*/
function eachLine(str, callback)
{
var lines = splitLines(str);
for (var i = 0; i < lines.length; i++)
lines[i] = callback(lines[i], i);
return lines.join('\n');
};
/**
* 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.
*/
function trimFirstAndLastLines(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.
*/
function parseParams(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.
*/
function wrapLinesWithCode(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 += '\u00A0';
return spaces + ' ';
});
// Split each line and apply <span class="...">...</span> to them so that
// leading spaces aren't included.
if (css != null)
str = 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'.
*/
function padNumber(number, length)
{
var result = number.toString();
while (result.length < length)
result = '0' + result;
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.
*/
function processTabs(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.
*/
function processSmartTabs(code, tabSize)
{
var lines = splitLines(code),
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 = 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;
};
/**
* Performs various string fixes based on configuration.
*/
function fixInputString(str)
{
var br = /<br\s*\/?>|<br\s*\/?>/gi;
if (sh.config.bloggerMode == true)
str = str.replace(br, '\n');
if (sh.config.stripBrs == true)
str = str.replace(br, '');
return 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.
*/
function trim(str)
{
return str.replace(/^\s+|\s+$/g, '');
};
/**
* Unindents a block of text by the lowest common indent amount.
* @param {String} str Text to unindent.
* @return {String} Returns unindented text block.
*/
function unindent(str)
{
var lines = splitLines(fixInputString(str)),
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 (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.
*/
function matchesSortCallback(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.
*
* @param {String} code Code to execute regular expression on.