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1318 alexandre_ 1 
/*
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	Copyright (c) 2004-2006, The Dojo Foundation
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	All Rights Reserved.
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	Licensed under the Academic Free License version 2.1 or above OR the
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	modified BSD license. For more information on Dojo licensing, see:
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		http://dojotoolkit.org/community/licensing.shtml
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*/
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dojo.provide("dojo.string.Builder");
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dojo.require("dojo.string");
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dojo.require("dojo.lang.common");
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dojo.string.Builder = function (str) {
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	this.arrConcat = (dojo.render.html.capable && dojo.render.html["ie"]);
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	var a = [];
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	var b = "";
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	var length = this.length = b.length;
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	if (this.arrConcat) {
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		if (b.length > 0) {
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			a.push(b);
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		}
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		b = "";
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	}
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	this.toString = this.valueOf = function () {
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		return (this.arrConcat) ? a.join("") : b;
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	};
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	this.append = function () {
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		for (var x = 0; x < arguments.length; x++) {
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			var s = arguments[x];
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			if (dojo.lang.isArrayLike(s)) {
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				this.append.apply(this, s);
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			} else {
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				if (this.arrConcat) {
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					a.push(s);
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				} else {
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					b += s;
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				}
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				length += s.length;
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				this.length = length;
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			}
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		}
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		return this;
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	};
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	this.clear = function () {
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		a = [];
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		b = "";
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		length = this.length = 0;
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		return this;
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	};
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	this.remove = function (f, l) {
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		var s = "";
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		if (this.arrConcat) {
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			b = a.join("");
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		}
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		a = [];
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		if (f > 0) {
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			s = b.substring(0, (f - 1));
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		}
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		b = s + b.substring(f + l);
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		length = this.length = b.length;
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		if (this.arrConcat) {
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			a.push(b);
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			b = "";
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		}
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		return this;
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	};
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	this.replace = function (o, n) {
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		if (this.arrConcat) {
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			b = a.join("");
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		}
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		a = [];
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		b = b.replace(o, n);
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		length = this.length = b.length;
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		if (this.arrConcat) {
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			a.push(b);
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			b = "";
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		}
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		return this;
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	};
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	this.insert = function (idx, s) {
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		if (this.arrConcat) {
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			b = a.join("");
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		}
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		a = [];
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		if (idx == 0) {
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			b = s + b;
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		} else {
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			var t = b.split("");
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			t.splice(idx, 0, s);
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			b = t.join("");
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		}
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		length = this.length = b.length;
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		if (this.arrConcat) {
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			a.push(b);
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			b = "";
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		}
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		return this;
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	};
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	this.append.apply(this, arguments);
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};
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