Files
korenkonder 3c13856667 Release v0.4.10.18
Fixed incorrect reading of `byte` and `short` in `JSON`
2023-07-04 05:32:14 +03:00

600 lines
20 KiB
C#

using KKdBaseLib;
using System;
using System.IO;
using BaseExtensions = KKdBaseLib.Extensions;
namespace KKdMainLib.IO
{
public struct JSON : System.IDisposable
{
struct ReadBuffer
{
public char[] data;
public int first;
public int length;
public ReadBuffer(int size)
{
data = new char[size];
first = 0;
length = 0;
}
};
public JSON(Stream _IO) => this._IO = _IO;
private Stream _IO;
public void Close() => _IO.C();
public byte[] ToArray(bool Close = false) => _IO.ToArray(Close);
public MsgPack Read()
{
ReadBuffer buf = new ReadBuffer(0x400);
buf.first = 0;
buf.length = 0;
buf.data[0] = '\0';
buf.data[buf.data.Length - 1] = '\0';
int c = ReadChar(ref buf);
return new MsgPack(null, ReadInner(ref buf, ref c));
}
int ReadChar(ref ReadBuffer buf)
{
if (buf.length == 0)
{
buf.first = 1;
buf.data[0] = buf.data[buf.data.Length - 1];
byte[] temp = new byte[buf.data.Length];
buf.length = _IO.RBy(buf.data.Length - 1, temp);
Array.Copy(temp, 0, buf.data, 1, buf.length);
}
if (buf.length < 1)
return -1;
int c = buf.data[buf.first];
buf.first++;
buf.length--;
return c;
}
void Seek(ref ReadBuffer buf, long offset)
{
if (buf.first < offset || offset >= buf.length - 1L) {
long pos = _IO.PI64 - buf.length - offset;
long off = pos % buf.data.Length;
pos -= off;
if (pos > 1)
{
_IO.S(pos, SeekOrigin.Begin);
buf.first = (int)off;
byte[] temp = _IO.RBy(buf.data.Length);
buf.length = temp.Length;
Array.Copy(temp, 0, buf.data, 0, temp.Length);
}
else
{
_IO.S(pos, SeekOrigin.Begin);
buf.first = (int)(off + 1);
buf.data[0] = '\0';
byte[] temp = _IO.RBy(buf.data.Length - 1);
buf.length = temp.Length;
Array.Copy(temp, 0, buf.data, 1, temp.Length);
}
buf.length -= (int)off;
}
else
{
buf.first -= (int)offset;
buf.length += (int)offset;
}
}
void SeekOne(ref ReadBuffer buf)
{
buf.first--;
buf.length++;
}
object ReadInner(ref ReadBuffer buf, ref int c)
{
if (c == -1)
return null;
if (c == ' ' || c == '\n' || c == '\r' || c == '\t')
c = ReadChar(ref buf);
switch (c)
{
case '0':
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
case '8':
case '9':
case '-':
return ReadFloat(ref buf, ref c);
case '"':
return ReadString(ref buf, ref c);
case '{':
return ReadMap(ref buf, ref c);
case '[':
return ReadArray(ref buf, ref c);
case 't':
return ReadBool(ref buf, ref c);
case 'f':
return ReadBool(ref buf, ref c);
case 'n':
return ReadNull(ref buf, ref c);
}
return null;
}
void ReadDigit(ref ReadBuffer buf, ref int c, byte[] dig_buf, ref int dig_buf_pos, int dig_buf_end) {
int b = dig_buf_pos;
while (c >= '0' && c <= '9' && b < dig_buf_end) {
dig_buf[b++] = (byte)c;
if ((c = ReadChar(ref buf)) == -1)
break;
}
dig_buf_pos = b;
}
object ReadFloat(ref ReadBuffer buf, ref int c)
{
byte[] dig_buf = new byte[0x100];
int buf_pos = 0;
int buf_end = dig_buf.Length;
bool negate = false;
bool zero = false;
bool fraction = false;
if (c == '-')
{
dig_buf[buf_pos++] = (byte)c;
if ((c = ReadChar(ref buf)) == -1)
return null;
negate = true;
}
if (c == '0')
{
dig_buf[buf_pos++] = (byte)c;
if ((c = ReadChar(ref buf)) == -1)
return null;
zero = true;
}
else
ReadDigit(ref buf, ref c, dig_buf, ref buf_pos, buf_end);
if (c == '.')
{
dig_buf[buf_pos++] = (byte)c;
if ((c = ReadChar(ref buf)) == -1)
return null;
ReadDigit(ref buf, ref c, dig_buf, ref buf_pos, buf_end);
fraction = true;
}
if (zero && !fraction)
{
object obj;
if (negate)
obj = -0.0f;
else
obj = 0;
SeekOne(ref buf);
return obj;
}
else if (c != 'e' && c != 'E' && !fraction)
{
string temp = dig_buf.ToUTF8();
int null_term = temp.IndexOf('\0');
if (null_term >= 0)
temp = temp.Substring(0, null_term);
if (!long.TryParse(temp, out long val))
return null;
object obj;
unchecked
{
if (val >= 0x00 && val <= 0xFF)
obj = (byte)val;
else if (val >= (sbyte)0x80 && val <= (sbyte)0x7F)
obj = (sbyte)val;
else if (val >= 0x0000 && val <= 0xFFFF)
obj = (ushort)val;
else if (val >= (short)0x8000 && val <= (short)0x7FFF)
obj = (short)val;
else if (val >= 0x00000000 && val <= 0xFFFFFFFF)
obj = (uint)val;
else if (val >= (int)0x80000000 && val <= (int)0x7FFFFFFF)
obj = (int)val;
else
obj = val;
}
SeekOne(ref buf);
return obj;
}
else if (c == 'e' || c == 'E')
{
dig_buf[buf_pos++] = (byte)c;
if ((c = ReadChar(ref buf)) == -1)
return null;
if (c == '+' || c == '-')
{
dig_buf[buf_pos++] = (byte)c;
if ((c = ReadChar(ref buf)) == -1)
return null;
}
ReadDigit(ref buf, ref c, dig_buf, ref buf_pos, buf_end);
}
string ftemp = dig_buf.ToUTF8();
int fnull_term = ftemp.IndexOf('\0');
if (fnull_term >= 0)
ftemp = ftemp.Substring(0, fnull_term);
if (!ftemp.ToF64(out double fval))
return null;
object fobj;
if (fval == (float)fval)
fobj = (float)fval;
else
fobj = fval;
SeekOne(ref buf);
return fobj;
}
byte ReadStringHex(int c)
{
if (c >= '0' && c <= '9')
return (byte)(c - '0');
else if (c >= 'A' && c <= 'F')
return (byte)(c - 'A' + 0xA);
else if (c >= 'a' && c <= 'f')
return (byte)(c - 'a' + 0xA);
else
return 0;
}
string ReadStringInner(ref ReadBuffer buf, ref int c)
{
if (c != '"')
return null;
long pos = _IO.PI64 - buf.length;
ulong len = 0;
while (c != -1)
{
c = ReadChar(ref buf);
if (c == '\\')
{
if ((c = ReadChar(ref buf)) == -1)
break;
switch (c)
{
case '"':
case '\\':
case '/':
case 'b':
case 'f':
case 'n':
case 'r':
case 't':
len++;
break;
case 'u':
{
uint uc = 0;
if ((c = ReadChar(ref buf)) == -1)
break;
uc |= (uint)ReadStringHex(c) << 24;
if ((c = ReadChar(ref buf)) == -1)
break;
uc |= (uint)ReadStringHex(c) << 16;
if ((c = ReadChar(ref buf)) == -1)
break;
uc |= (uint)ReadStringHex(c) << 8;
if ((c = ReadChar(ref buf)) == -1)
break;
uc |= (uint)ReadStringHex(c);
if (uc <= 0x7F)
len++;
else if (c <= 0x7FF)
len += 2;
else
len += 3;
}
break;
}
}
else if (c == '"')
break;
else
len++;
}
if (c == -1)
return null;
long pos_end = _IO.PI64 - buf.length;
Seek(ref buf, pos_end - pos);
byte[] temp = new byte[len + 1];
for (ulong i = 0; i < len;)
{
c = ReadChar(ref buf);
if (c == '\\')
{
c = ReadChar(ref buf);
switch (c)
{
case '"':
temp[i++] = (byte)'"';
break;
case '\\':
temp[i++] = (byte)'\\';
break;
case '/':
temp[i++] = (byte)'/';
break;
case 'b':
temp[i++] = (byte)'\b';
break;
case 'f':
temp[i++] = (byte)'\f';
break;
case 'n':
temp[i++] = (byte)'\n';
break;
case 'r':
temp[i++] = (byte)'\r';
break;
case 't':
temp[i++] = (byte)'\t';
break;
case 'u':
{
uint uc = 0;
uc |= (uint)ReadStringHex(ReadChar(ref buf)) << 24;
uc |= (uint)ReadStringHex(ReadChar(ref buf)) << 16;
uc |= (uint)ReadStringHex(ReadChar(ref buf)) << 8;
uc |= (uint)ReadStringHex(ReadChar(ref buf));
if (uc <= 0x7F)
temp[i] = (byte)uc;
else if (uc <= 0x7FF)
{
temp[i++] = (byte)(0xC0 | ((uc >> 6) & 0x1F));
temp[i] = (byte)(0x80 | (uc & 0x3F));
}
else
{
temp[i++] = (byte)(0xE0 | ((uc >> 12) & 0xF));
temp[i++] = (byte)(0x80 | ((uc >> 6) & 0x3F));
temp[i++] = (byte)(0x80 | (uc & 0x3F));
}
}
break;
}
}
else if (c == '"')
break;
else
temp[i++] = (byte)c;
}
if ((c = ReadChar(ref buf)) == -1)
return null;
string str = temp.ToUTF8();
int null_term = str.IndexOf('\0');
if (null_term >= 0)
str = str.Substring(0, null_term);
return str;
}
object ReadString(ref ReadBuffer buf, ref int c)
{
return ReadStringInner(ref buf, ref c);
}
void ReadSkipWhitespace(ref ReadBuffer buf, ref int c)
{
while ((c = ReadChar(ref buf)) != -1)
{
if (c == ' ' || c == '\n' || c == '\r' || c == '\t')
continue;
break;
}
}
object ReadMap(ref ReadBuffer buf, ref int c)
{
KKdList<MsgPack> map = KKdList<MsgPack>.New;
if (c != '}')
{
while (true)
{
ReadSkipWhitespace(ref buf, ref c);
if (c == '}')
break;
string key = ReadStringInner(ref buf, ref c);
if (key == null)
return null;
ReadSkipWhitespace(ref buf, ref c);
if (c != ':')
return null;
ReadSkipWhitespace(ref buf, ref c);
map.Add(new MsgPack(key, ReadInner(ref buf, ref c)));
ReadSkipWhitespace(ref buf, ref c);
if (c == '}')
break;
else if (c != ',')
return null;
}
}
map.Capacity = map.Count;
return map;
}
object ReadArray(ref ReadBuffer buf, ref int c)
{
KKdList<MsgPack> array = KKdList<MsgPack>.New;
if (c != ']')
{
while (true)
{
ReadSkipWhitespace(ref buf, ref c);
if (c == ']')
break;
array.Add(new MsgPack(null, ReadInner(ref buf, ref c)));
ReadSkipWhitespace(ref buf, ref c);
if (c == ']')
break;
else if (c != ',')
return null;
}
}
array.Capacity = array.Count;
return array.ToArray();
}
object ReadBool(ref ReadBuffer buf, ref int c)
{
if (c != 't')
{
if ((c = ReadChar(ref buf)) == -1 || c != 'a')
return null;
if ((c = ReadChar(ref buf)) == -1 || c != 'l')
return null;
if ((c = ReadChar(ref buf)) == -1 || c != 's')
return null;
if ((c = ReadChar(ref buf)) == -1 || c != 'e')
return null;
return false;
}
else
{
if ((c = ReadChar(ref buf)) == -1 || c != 'r')
return null;
if ((c = ReadChar(ref buf)) == -1 || c != 'u')
return null;
if ((c = ReadChar(ref buf)) == -1 || c != 'e')
return null;
return true;
}
}
object ReadNull(ref ReadBuffer buf, ref int c)
{
if ((c = ReadChar(ref buf)) == -1 || c != 'u')
return null;
if ((c = ReadChar(ref buf)) == -1 || c != 'l')
return null;
if ((c = ReadChar(ref buf)) == -1 || c != 'l')
return null;
return null;
}
public JSON W(MsgPack msgPack, bool ignoreNull, string end = "\n", string tabChar = " ") =>
W(msgPack, ignoreNull, end, tabChar, "", true);
public JSON W(MsgPack msgPack, bool ignoreNull, bool style = false) =>
W(msgPack, ignoreNull, "\n", " ", "", style);
private JSON W(MsgPack msgPack, bool ignoreNull, string end,
string tabChar, string tab, bool style, bool isArray = false)
{
string oldTab = tab;
tab += tabChar;
if (msgPack.Name != null && !isArray ) _IO.W("\"" + msgPack.Name + "\":" + (style ? " " : ""));
if (msgPack.Object == null) { if (!ignoreNull) WN(); return this; }
if (msgPack.List.NotNull)
{
WM();
if (style) _IO.W(end);
if (msgPack.List.Count > 1)
for (int i = 0; i < msgPack.List.Count; i++)
{
if (style) _IO.W(tab);
W(msgPack.List[i], ignoreNull, end, tabChar, tab, style);
if (i + 1 < msgPack.List.Count) _IO.W(',');
if (style) _IO.W(end);
}
else if (msgPack.List.Count == 1)
{
if (style) _IO.W(tab);
W(msgPack.List[0], ignoreNull, end, tabChar, tab, style);
if (style) _IO.W(end);
}
if (style) _IO.W(oldTab);
WM(true);
}
else if (msgPack.Array != null)
{
WA();
if (style) _IO.W(end);
if (msgPack.Array.Length > 1)
for (int i = 0; i < msgPack.Array.Length; i++)
{
if (style) _IO.W(tab);
W(msgPack.Array[i], ignoreNull, end, tabChar, tab, style, true);
if (i + 1 < msgPack.Array.Length) _IO.W(',');
if (style) _IO.W(end);
}
else if (msgPack.Array.Length == 1)
{
if (style) _IO.W(tab);
W(msgPack.Array[0], ignoreNull, end, tabChar, tab, style, true);
if (style) _IO.W(end);
}
if (style) _IO.W(oldTab);
WA(true);
}
else if (msgPack.Object is MsgPack msg) W(msg, ignoreNull, end, tabChar, tab, style);
else if (msgPack.Object is string str) W(str);
else _IO.W(BaseExtensions.ToS(msgPack.Object));
return this;
}
public void Dispose() => _IO.C();
private void W(string val) => _IO.W("\"" + val
.Replace("\\", "\\\\").Replace("/" , "\\/").Replace("\"", "\\\"")
.Replace("\0", "\\0" ).Replace("\b", "\\b").Replace("\f", "\\f" )
.Replace("\n", "\\n" ).Replace("\r", "\\r").Replace("\t", "\\t" ) + "\"");
private void WN() => _IO.W("null");
private void WA(bool End = false) => _IO.W(End ? "]" : "[");
private void WM(bool End = false) => _IO.W(End ? "}" : "{");
}
}