public void WriteBase(SubStringStruct value)
{
if (value.Length != 0)
{
var length = value.Length << 1;
PrepLengthBase(length);
fixed (char* valueFixed = value.Value)
MemoryUnsafe.Copy(valueFixed + value.StartIndex, Data + LengthBase, length);
LengthBase += length;
}
}
///// <summary>
///// 模拟javascript解码函数unescape
///// </summary>
///// <param name="value">原字符串</param>
///// <returns>unescape解码后的字符串</returns>
//public static unsafe string JavascriptUnescape(string value)
//{
// if (value != null)
// {
// fixed (char* valueFixed = value)
// {
// char* start = valueFixed, end = valueFixed + value.Length;
// while (start != end && *start != '%')
// {
// if (*start == 0) *start = ' ';
// ++start;
// }
// if (start != end)
// {
// char* write = start;
// do
// {
// if (*++start == 'u')
// {
// uint code = (uint)(*++start - '0' < 10 ? *start - '0' : ((*start & 0xdf) - ('0' + 'A' - '9' - 1)));
// code <<= 4;
// code += (uint)(*++start - '0' < 10 ? *start - '0' : ((*start & 0xdf) - ('0' + 'A' - '9' - 1)));
// code <<= 4;
// code += (uint)(*++start - '0' < 10 ? *start - '0' : ((*start & 0xdf) - ('0' + 'A' - '9' - 1)));
// code <<= 4;
// code += (uint)(*++start - '0' < 10 ? *start - '0' : ((*start & 0xdf) - ('0' + 'A' - '9' - 1)));
// *write++ = code != 0 ? (char)code : ' ';
// }
// else
// {
// uint code = (uint)(*start - '0' < 10 ? *start - '0' : ((*start & 0xdf) - ('0' + 'A' - '9' - 1)));
// code <<= 4;
// code += (uint)(*++start - '0' < 10 ? *start - '0' : ((*start & 0xdf) - ('0' + 'A' - '9' - 1)));
// *write++ = code != 0 ? (char)code : ' ';
// }
// while (++start < end && *start != '%') *write++ = *start != 0 ? *start : ' ';
// }
// while (start < end);
// return new string(valueFixed, 0, (int)(write - valueFixed));
// }
// }
// }
// return value;
//}
/// <summary>
/// 模拟javascript解码函数unescape
/// </summary>
/// <param name="value">原字符串</param>
/// <returns>unescape解码后的字符串</returns>
internal static unsafe SubStringStruct JavascriptUnescape(SubStringStruct value)
{
if (value.Length != 0)
{
fixed (char* valueFixed = value.Value)
{
char* start = valueFixed + value.StartIndex, end = start + value.Length;
while (start != end && *start != '%')
{
if (*start == 0) *start = ' ';
++start;
}
if (start != end)
{
var write = start;
do
{
if (*++start == 'u')
{
var code =
(uint)
(*++start - '0' < 10 ? *start - '0' : ((*start & 0xdf) - ('0' + 'A' - '9' - 1)));
code <<= 4;
code +=
(uint)
(*++start - '0' < 10 ? *start - '0' : ((*start & 0xdf) - ('0' + 'A' - '9' - 1)));
code <<= 4;
code +=
(uint)
(*++start - '0' < 10 ? *start - '0' : ((*start & 0xdf) - ('0' + 'A' - '9' - 1)));
code <<= 4;
code +=
(uint)
(*++start - '0' < 10 ? *start - '0' : ((*start & 0xdf) - ('0' + 'A' - '9' - 1)));
*write++ = code != 0 ? (char) code : ' ';
}
else
{
var code =
(uint)
(*start - '0' < 10 ? *start - '0' : ((*start & 0xdf) - ('0' + 'A' - '9' - 1)));
code <<= 4;
code +=
(uint)
(*++start - '0' < 10 ? *start - '0' : ((*start & 0xdf) - ('0' + 'A' - '9' - 1)));
*write++ = code != 0 ? (char) code : ' ';
}
while (++start < end && *start != '%') *write++ = *start != 0 ? *start : ' ';
} while (start < end);
return SubStringStruct.Unsafe(value.Value, value.StartIndex,
(int) (write - valueFixed) - value.StartIndex);
}
}
}
return value;
}
public static void ToString(SubStringStruct value, CharStreamPlus jsonStream)
{
if (value.Value == null) WriteNull(jsonStream);
else
{
jsonStream.PrepLength(value.Length + 2);
jsonStream.Unsafer.Write(Quote);
jsonStream.WriteBase(value);
jsonStream.Unsafer.Write(Quote);
}
}
