10 lines
26 KiB
JavaScript
10 lines
26 KiB
JavaScript
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/*--------------------------------------------------------------------------
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* linq.js - LINQ for JavaScript
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* ver 2.2.0.2 (Jan. 21th, 2011)
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*
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* created and maintained by neuecc <ils@neue.cc>
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* licensed under Microsoft Public License(Ms-PL)
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* http://neue.cc/
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* http://linqjs.codeplex.com/
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*--------------------------------------------------------------------------*/
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Enumerable=function(){var m="Single:sequence contains more than one element.",e=true,b=null,a=false,c=function(a){this.GetEnumerator=a};c.Choice=function(){var a=arguments[0]instanceof Array?arguments[0]:arguments;return new c(function(){return new f(g.Blank,function(){return this.Yield(a[Math.floor(Math.random()*a.length)])},g.Blank)})};c.Cycle=function(){var a=arguments[0]instanceof Array?arguments[0]:arguments;return new c(function(){var b=0;return new f(g.Blank,function(){if(b>=a.length)b=0;return this.Yield(a[b++])},g.Blank)})};c.Empty=function(){return new c(function(){return new f(g.Blank,function(){return a},g.Blank)})};c.From=function(j){if(j==b)return c.Empty();if(j instanceof c)return j;if(typeof j==i.Number||typeof j==i.Boolean)return c.Repeat(j,1);if(typeof j==i.String)return new c(function(){var b=0;return new f(g.Blank,function(){return b<j.length?this.Yield(j.charAt(b++)):a},g.Blank)});if(typeof j!=i.Function){if(typeof j.length==i.Number)return new h(j);if(!(j instanceof Object)&&d.IsIEnumerable(j))return new c(function(){var c=e,b;return new f(function(){b=new Enumerator(j)},function(){if(c)c=a;else b.moveNext();return b.atEnd()?a:this.Yield(b.item())},g.Blank)})}return new c(function(){var b=[],c=0;return new f(function(){for(var a in j)!(j[a]instanceof Function)&&b.push({Key:a,Value:j[a]})},function(){return c<b.length?this.Yield(b[c++]):a},g.Blank)})},c.Return=function(a){return c.Repeat(a,1)};c.Matches=function(h,e,d){if(d==b)d="";if(e instanceof RegExp){d+=e.ignoreCase?"i":"";d+=e.multiline?"m":"";e=e.source}if(d.indexOf("g")===-1)d+="g";return new c(function(){var b;return new f(function(){b=new RegExp(e,d)},function(){var c=b.exec(h);return c?this.Yield(c):a},g.Blank)})};c.Range=function(e,d,a){if(a==b)a=1;return c.ToInfinity(e,a).Take(d)};c.RangeDown=function(e,d,a){if(a==b)a=1;return c.ToNegativeInfinity(e,a).Take(d)};c.RangeTo=function(d,e,a){if(a==b)a=1;return d<e?c.ToInfinity(d,a).TakeWhile(function(a){return a<=e}):c.ToNegativeInfinity(d,a).TakeWhile(function(a){return a>=e})};c.Repeat=function(d,a){return a!=b?c.Repeat(d).Take(a):new c(function(){return new f(g.Blank,function(){return this.Yield(d)},g.Blank)})};c.RepeatWithFinalize=function(a,e){a=d.CreateLambda(a);e=d.CreateLambda(e);return new c(function(){var c;return new f(function(){c=a()},function(){return this.Yield(c)},function(){if(c!=b){e(c);c=b}})})};c.Generate=function(a,e){if(e!=b)return c.Generate(a).Take(e);a=d.CreateLambda(a);return new c(function(){return new f(g.Blank,function(){return this.Yield(a())},g.Blank)})};c.ToInfinity=function(d,a){if(d==b)d=0;if(a==b)a=1;return new c(function(){var b;return new f(function(){b=d-a},function(){return this.Yield(b+=a)},g.Blank)})};c.ToNegativeInfinity=function(d,a){if(d==b)d=0;if(a==b)a=1;return new c(function(){var b;return new f(function(){b=d+a},function(){return this.Yield(b-=a)},g.Blank)})};c.Unfold=function(h,b){b=d.CreateLambda(b);return new c(function(){var d=e,c;return new f(g.Blank,function(){if(d){d=a;c=h;return this.Yield(c)}c=b(c);return this.Yield(c)},g.Blank)})};c.prototype={CascadeBreadthFirst:function(g,b){var h=this;g=d.CreateLambda(g);b=d.CreateLambda(b);return new c(function(){var i,k=0,j=[];return new f(function(){i=h.GetEnumerator()},function(){while(e){if(i.MoveNext()){j.push(i.Current());return this.Yield(b(i.Current(),k))}var f=c.From(j).SelectMany(function(a){return g(a)});if(!f.Any())return a;else{k++;j=[];d.Dispose(i);i=f.GetEnumerator()}}},function(){d.Dispose(i)})})},CascadeDepthFirst:function(g,b){var h=this;g=d.CreateLambda(g);b=d.CreateLambda(b);return new c(function(){var j=[],i;return new f(function(){i=h.GetEnumerator()},function(){while(e){if(i.MoveNext()){var f=b(i.Current(),j.length);j.push(i);i=c.From(g(i.Current())).GetEnumerator();return this.Yield(f)}if(j.length<=0)return a;d.Dispose(i);i=j.pop()}},function(){try{d.Dispose(i)}finally{c.From(j).ForEach(function(a){a.Dispose()})}})})},Flatten:function(){var h=this;return new c(function(){var j,i=b;return new f(function(){j=h.GetEnumerator()},function(){while(e){if(i!=b)if(i.MoveNext())retur
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