root / trunk / web / dojo / dojox / lang / functional / listcomp.js
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| 1 | 9 | andrej.cim | /*
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| 2 | Copyright (c) 2004-2010, The Dojo Foundation All Rights Reserved.
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| 3 | Available via Academic Free License >= 2.1 OR the modified BSD license.
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| 4 | see: http://dojotoolkit.org/license for details
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| 5 | */
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| 6 | |||
| 7 | |||
| 8 | if(!dojo._hasResource["dojox.lang.functional.listcomp"]){ |
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| 9 | dojo._hasResource["dojox.lang.functional.listcomp"]=true; |
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| 10 | dojo.provide("dojox.lang.functional.listcomp");
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| 11 | (function(){
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| 12 | var _1=/\bfor\b|\bif\b/gm; |
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| 13 | var _2=function(s){ |
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| 14 | var _3=s.split(_1),_4=s.match(_1),_5=["var r = [];"],_6=[],i=0,l=_4.length; |
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| 15 | while(i<l){
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| 16 | var a=_4[i],f=_3[++i];
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| 17 | if(a=="for"&&!/^\s*\(\s*(;|var)/.test(f)){ |
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| 18 | f=f.replace(/^\s*\(/,"(var "); |
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| 19 | } |
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| 20 | _5.push(a,f,"{");
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| 21 | _6.push("}");
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| 22 | } |
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| 23 | return _5.join("")+"r.push("+_3[0]+");"+_6.join("")+"return r;"; |
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| 24 | }; |
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| 25 | dojo.mixin(dojox.lang.functional,{buildListcomp:function(s){
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| 26 | return "function(){"+_2(s)+"}"; |
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| 27 | },compileListcomp:function(s){ |
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| 28 | return new Function([],_2(s)); |
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| 29 | },listcomp:function(s){ |
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| 30 | return (new Function([],_2(s)))(); |
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| 31 | }}); |
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| 32 | })(); |
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| 33 | } |