121 lines
3.4 KiB
C#
121 lines
3.4 KiB
C#
#region License
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// Copyright (c) 2007 James Newton-King
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//
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// Permission is hereby granted, free of charge, to any person
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// obtaining a copy of this software and associated documentation
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// files (the "Software"), to deal in the Software without
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// restriction, including without limitation the rights to use,
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// copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the
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// Software is furnished to do so, subject to the following
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// conditions:
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//
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// The above copyright notice and this permission notice shall be
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// included in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
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// OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
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// HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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// WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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// OTHER DEALINGS IN THE SOFTWARE.
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#endregion
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using System;
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using System.Collections;
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using System.Globalization;
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using System.IO;
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using System.Text;
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using System.Text.RegularExpressions;
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using System.Web;
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using System.Collections.Generic;
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using System.Drawing;
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using System.Web.UI.WebControls;
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namespace Newtonsoft.Json
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{
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internal static class JavaScriptUtils
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{
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public static void WriteEscapedJavaScriptString (string value, TextWriter writer) {
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WriteEscapedJavaScriptString (value, '"', true, writer);
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}
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public static void WriteEscapedJavaScriptString (string value, char delimiter, bool appendDelimiters, TextWriter writer) {
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// leading delimiter
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if (appendDelimiters)
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writer.Write (delimiter);
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if (!string.IsNullOrEmpty (value))
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for (int i = 0; i < value.Length; i++)
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WriteJavaScriptChar (value [i], delimiter, writer);
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// trailing delimiter
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if (appendDelimiters)
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writer.Write (delimiter);
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}
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public static void WriteEscapedJavaScriptChar (char value, char delimiter, bool appendDelimiters, TextWriter writer) {
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// leading delimiter
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if (appendDelimiters)
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writer.Write (delimiter);
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WriteJavaScriptChar (value, delimiter, writer);
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// trailing delimiter
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if (appendDelimiters)
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writer.Write (delimiter);
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}
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public static void WriteJavaScriptChar (char value, char delimiter, TextWriter writer) {
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switch (value) {
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case '\t':
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writer.Write (@"\t");
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break;
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case '\n':
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writer.Write (@"\n");
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break;
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case '\r':
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writer.Write (@"\r");
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break;
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case '\f':
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writer.Write (@"\f");
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break;
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case '\b':
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writer.Write (@"\b");
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break;
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case '<':
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writer.Write (@"\u003c");
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break;
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case '>':
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writer.Write (@"\u003e");
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break;
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case '"':
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// only escape if this charater is being used as the delimiter
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if (delimiter == '"')
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writer.Write (@"\""");
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else
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writer.Write (value);
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break;
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case '\'':
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writer.Write (@"\u0027");
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break;
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case '\\':
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writer.Write (@"\\");
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break;
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default:
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if (value > '\u001f')
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writer.Write (value);
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else {
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writer.Write("\\u00");
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int intVal = (int) value;
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writer.Write ((char) ('0' + (intVal >> 4)));
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intVal &= 0xf;
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writer.Write ((char) (intVal < 10 ? '0' + intVal : 'a' + (intVal - 10)));
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}
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break;
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}
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}
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}
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} |