|
|
using Implab;
|
|
|
using Implab.Formats;
|
|
|
using System;
|
|
|
using System.Collections.Generic;
|
|
|
using System.Diagnostics;
|
|
|
using System.Linq;
|
|
|
using System.Text;
|
|
|
using System.Threading.Tasks;
|
|
|
|
|
|
namespace Implab.Formats.JSON {
|
|
|
/// <summary>
|
|
|
/// Класс для преобразования экранированной строки JSON
|
|
|
/// </summary>
|
|
|
static class StringTranslator {
|
|
|
static readonly char[] _escMap;
|
|
|
static readonly int[] _hexMap;
|
|
|
|
|
|
static StringTranslator() {
|
|
|
var chars = new char[] { 'b', 'f', 't', 'r', 'n', '\\', '/' };
|
|
|
var vals = new char[] { '\b', '\f', '\t', '\r', '\n', '\\', '/' };
|
|
|
|
|
|
_escMap = new char[chars.Max() + 1];
|
|
|
|
|
|
for (int i = 0; i < chars.Length; i++)
|
|
|
_escMap[chars[i]] = vals[i];
|
|
|
|
|
|
var hexs = new char[] { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f', 'A', 'B', 'C', 'D', 'E', 'F' };
|
|
|
var ints = new int[] { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 10, 11, 12, 13, 14, 15 };
|
|
|
|
|
|
_hexMap = new int[hexs.Max() + 1];
|
|
|
|
|
|
for (int i = 0; i < hexs.Length; i++)
|
|
|
_hexMap[hexs[i]] = ints[i];
|
|
|
|
|
|
}
|
|
|
|
|
|
internal static char TranslateEscapedChar(char symbol) {
|
|
|
return _escMap[symbol];
|
|
|
}
|
|
|
|
|
|
internal static char TranslateHexUnicode(char[] symbols, int offset) {
|
|
|
Debug.Assert(symbols != null);
|
|
|
Debug.Assert(symbols.Length - offset >= 4);
|
|
|
|
|
|
int value = (_hexMap[symbols[offset]] << 12)
|
|
|
| (_hexMap[symbols[offset + 1]] << 8)
|
|
|
| (_hexMap[symbols[offset + 2]] << 4)
|
|
|
| (_hexMap[symbols[offset + 3]]);
|
|
|
return (char)value;
|
|
|
}
|
|
|
}
|
|
|
}
|
|
|
|
