Common/JsonParser.cs

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using System;
using System.Collections;
using System.Collections.Generic;
using System.Data;
using System.Globalization;
using System.Reflection;
using System.Reflection.Emit;
using System.Text;

namespace fastJSON
{
	/// <summary>
	/// This class encodes and decodes JSON strings.
	/// Spec. details, see http://www.json.org/
	/// 
	/// JSON uses Arrays and Objects. These correspond here to the datatypes ArrayList and Hashtable.
	/// All numbers are parsed to doubles.
	/// </summary>
	internal class JsonParser
	{
		private const int TOKEN_NONE = 0;
		private const int TOKEN_CURLY_OPEN = 1;
		private const int TOKEN_CURLY_CLOSE = 2;
		private const int TOKEN_SQUARED_OPEN = 3;
		private const int TOKEN_SQUARED_CLOSE = 4;
		private const int TOKEN_COLON = 5;
		private const int TOKEN_COMMA = 6;
		private const int TOKEN_STRING = 7;
		private const int TOKEN_NUMBER = 8;
		private const int TOKEN_TRUE = 9;
		private const int TOKEN_FALSE = 10;
		private const int TOKEN_NULL = 11;
		
		/// <summary>
		/// Parses the string json into a value
		/// </summary>
		/// <param name="json">A JSON string.</param>
		/// <returns>An ArrayList, a dictionary, a double, a string, null, true, or false</returns>
		internal static object JsonDecode(string json)
		{
			bool success = true;
			
			return JsonDecode(json, ref success);
		}

		/// <summary>
		/// Parses the string json into a value; and fills 'success' with the successfullness of the parse.
		/// </summary>
		/// <param name="json">A JSON string.</param>
		/// <param name="success">Successful parse?</param>
		/// <returns>An ArrayList, a Hashtable, a double, a string, null, true, or false</returns>
		private static object JsonDecode(string json, ref bool success)
		{
			success = true;
			if (json != null) {
				char[] charArray = json.ToCharArray();
				int index = 0;
				object value = ParseValue(charArray, ref index, ref success);
				return value;
			} else {