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/** |
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@constructor |
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*/ |
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JSDOC.TextStream = function(text) { |
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if (typeof(text) == "undefined") text = ""; |
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text = ""+text; |
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this.text = text; |
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this.cursor = 0; |
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} |
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JSDOC.TextStream.prototype.look = function(n) { |
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if (typeof n == "undefined") n = 0; |
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if (this.cursor+n < 0 || this.cursor+n >= this.text.length) { |
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var result = new String(""); |
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result.eof = true; |
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return result; |
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} |
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return this.text.charAt(this.cursor+n); |
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} |
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JSDOC.TextStream.prototype.next = function(n) { |
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if (typeof n == "undefined") n = 1; |
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if (n < 1) return null; |
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var pulled = ""; |
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for (var i = 0; i < n; i++) { |
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if (this.cursor+i < this.text.length) { |
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pulled += this.text.charAt(this.cursor+i); |
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} |
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else { |
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var result = new String(""); |
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result.eof = true; |
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return result; |
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} |
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} |
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this.cursor += n; |
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return pulled; |
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} |