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jquery-litelighter.js
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jquery-litelighter.js
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/*
* jQuery Litelighter
* By: Trent Richardson [http://trentrichardson.com]
*
* Copyright 2012 Trent Richardson
* Dual licensed under the MIT or GPL licenses.
* http://trentrichardson.com/Impromptu/GPL-LICENSE.txt
* http://trentrichardson.com/Impromptu/MIT-LICENSE.txt
*/
(function($){
$.litelighter = function($this, options){
this.settings = $.extend({},{ clone: false, style: 'light', language: 'generic' },options);
this.code = $this;
this.enable();
};
$.extend($.litelighter.prototype, {
enable: function(){
this.codelite = this.code.data('llcode', this.code.text());
if(this.settings.clone == true)
this.codelite = $('<pre />').text(this.code.text()).addClass('litelighter').insertAfter(this.code.css('display','none'));
if(this.code.data('lllanguage'))
this.settings.language = this.code.data('lllanguage');
if(this.code.data('llstyle'))
this.settings.style = this.code.data('llstyle');
var style = $.litelighter.styles[this.settings.style],
lang = $.litelighter.languages[this.settings.language],
txt = $.litelighter.highlight(this.codelite.html(), style, lang);
this.codelite.attr('style', style.code).html(txt);
return this.code;
},
disable: function(){
if(this.settings.clone){
this.codelite.remove();
return this.code.css('display','block');
}
return this.code.html('').text(this.code.data('llcode'));
},
destroy: function(){
this.disable();
return this.code.removeData('litelighter');
},
option: function(key, val){
if(val !== undefined){
this.code.data('ll'+key, val);
this.settings[key] = val;
this.disable();
return this.enable();
}
return this[key];
}
});
$.fn.extend({
litelighter: function(o) {
o = o || {};
var tmp_args = Array.prototype.slice.call(arguments);
if (typeof(o) == 'string') return this.each(function() {
var inst = $(this).data('litelighter');
inst[o].apply(inst, tmp_args.slice(1));
});
else return this.each(function() {
var $t = $(this);
$t.data('litelighter', new $.litelighter($t, o) );
});
}
});
$.litelighter.highlight = function(txt, style, lang){
// recursively do any sub templating...
var sublangsi = 0,
sublangs = [];
for(var i in lang){
if(lang.hasOwnProperty(i) && lang[i].language !== undefined && $.litelighter.languages[lang[i].language] !== undefined){
txt = txt.replace(lang[i].re, function($1, $2, $3){
sublangs[sublangsi++] = $.litelighter.highlight($2, style, $.litelighter.languages[lang[i].language]);
return $1.replace($2, '___subtmpl'+ (sublangsi-1) +'___');
});
}
}
// do current level templating
for(var i in lang){
if(lang.hasOwnProperty(i) && lang[i].language === undefined){
txt = txt.replace(lang[i].re, "___"+ i +"___$1___end"+ i +"___");
}
}
var lvls = [];
txt = txt.replace(/___(?!subtmpl)\w+?___/g, function($0){
var end = ($0.substr(3,3)=='end')? true:false,
tag = (!end? $0.substr(3):$0.substr(6)).replace(/_/g,''),
lastTag = lvls.length>0? lvls[lvls.length-1] : null;
if(!end && (lastTag == null || tag == lastTag || (lastTag != null && lang[lastTag].embed != undefined && $.inArray(tag,lang[lastTag].embed)>=0 ))){
lvls.push(tag);
return $0;
}
else if(end && tag == lastTag){
lvls.pop();
return $0;
}
return "";
});
for(var i in lang){
if(lang.hasOwnProperty(i)){
txt = txt.replace(new RegExp("___end"+ i +"___","g"), "</span>").replace(new RegExp("___"+ i +"___","g"), "<span class='litelighterstyle' style='"+ style[lang[i].style] +"'>");
}
}
// finally replace those sub templates
for(var i in lang){
if(lang.hasOwnProperty(i) && lang[i].language !== undefined && $.litelighter.languages[lang[i].language] !== undefined){
txt = txt.replace(/___subtmpl\d+___/g, function($tmpl){
var i = parseInt($tmpl.replace(/___subtmpl(\d+)___/, "$1"), 10);
return sublangs[i];
});
}
}
return txt;
};
$.litelighter.styles = {
light: {
code: 'background-color:#ffffff;color:#555;',
comment: 'color:#999',
string: 'color:#8F9657',
number: 'color:#CF6745;',
keyword: 'color:#6F87A8;',
operators: 'color:#9e771e;'
},
dark: {
code: 'background-color:#141414;color:#ffffff;',
comment: 'color:#999',
string: 'color:#8F9657',
number: 'color:#CF6745;',
keyword: 'color:#6F87A8;',
operators: 'color:#fee79e;'
}
};
$.litelighter.languages = {
generic: {
comment: { re: /(\/\/.*|\/\*([\s\S]*?)\*\/)/g, style: 'comment' },
string: { re: /((\'.*?\')|(\".*?\"))/g, style: 'string' },
numbers: { re: /(\-?(\d+|\d+\.\d+|\.\d+))/g, style: 'number' },
regex: { re: /([^\/]\/[^\/].+\/(g|i|m)*)/g, style: 'number' },
keywords: { re: /(?:\b)(for|foreach|while|if|else|elseif|switch|break|as|return|this|class|self|default|var|false|true|null|undefined)(?:\b)/gi, style: 'keyword' },
operators: { re: /(\+|\-|\/|\*|\%|\=|\<|\>|\||\?|\.)/g, style: 'operators' }
}
};
$.litelighter.languages.js = $.litelighter.languages.generic;
$.litelighter.languages.css = {
comment: $.litelighter.languages.generic.comment,
string: $.litelighter.languages.generic.string,
numbers: { re: /((\-?(\d+|\d+\.\d+|\.\d+)(\%|px|em|pt|in)?)|\#[0-9a-fA-F]{3}[0-9a-fA-F]{3})/g, style: 'number' },
keywords: { re: /(\@\w+|\:?\:\w+|[a-z\-]+\:)/g, style: 'keyword' }
};
$.litelighter.languages.html = {
comment: { re: /(\<\;\!\-\-([\s\S]*?)\-\-\>\;)/g, style: 'comment' },
tag: { re: /(\<\;\/?\w(.|\n)*?\/?\>\;)/g, style: 'keyword', embed: ['string'] },
string: $.litelighter.languages.generic.string,
css: { re: /(?:\<style.*?\>)([\s\S]+?)(?:\<\/style\>)/gi, language: 'css'},
script: { re: /(?:\<script.*?\>)([\s\S]+?)(?:\<\/script\>)/gi, language: 'js'}
};
})(jQuery);