private static string GetNextToken(byte terminalCh, byte[] src, ref int offset, ref int count)
{
int num = CsvDecoder.IndexOf(terminalCh, src, offset, count);
if (num == -1)
{
return(null);
}
int num2 = num - offset;
string result = (string)CsvDecoder.DecodeString(src, offset, num2);
int num3 = num2 + 1;
offset += num3;
count -= num3;
return(result);
}
public static object DecodeKeyValuePair(byte[] src, int offset, int count)
{
string nextToken = CsvDecoder.GetNextToken(SpecialCharacters.ColonByte, src, ref offset, ref count);
if (string.IsNullOrEmpty(nextToken))
{
return(null);
}
string nextToken2 = CsvDecoder.GetNextToken(SpecialCharacters.EqualsByte, src, ref offset, ref count);
if (string.IsNullOrEmpty(nextToken2) || !SpecialCharacters.IsValidKey(nextToken2))
{
return(null);
}
object obj;
if (nextToken.Equals("Dt", StringComparison.OrdinalIgnoreCase))
{
obj = CsvDecoder.DecodeDateTime(src, offset, count);
}
else if (nextToken.Equals("I32", StringComparison.OrdinalIgnoreCase))
{
obj = CsvDecoder.DecodeInt32(src, offset, count);
}
else if (nextToken.Equals("S", StringComparison.OrdinalIgnoreCase))
{
obj = CsvDecoder.DecodeString(src, offset, count);
}
else if (nextToken.Equals("F", StringComparison.OrdinalIgnoreCase))
{
obj = CsvDecoder.DecodeFloat(src, offset, count);
}
else
{
if (!nextToken.Equals("Dbl", StringComparison.OrdinalIgnoreCase))
{
return(null);
}
obj = CsvDecoder.DecodeDouble(src, offset, count);
}
if (obj == null)
{
return(null);
}
return(new KeyValuePair <string, object>(nextToken2, obj));
}
public static CsvDecoderCallback GetDecoder(Type type)
{
CsvDecoderCallback result;
if (CsvDecoder.decoders.TryGetValue(type, out result))
{
return(result);
}
if (type.IsEnum)
{
return(CsvDecoder.MapSafe(type, (byte[] src, int offset, int count) => CsvDecoder.DecodeEnum(type, src, offset, count)));
}
if (type.IsArray)
{
return(CsvDecoder.MapSafe(type, new CsvDecoderCallback(new CsvArrayDecoder(type.GetElementType()).Decode)));
}
return(null);
}
private void InitializeMembers(CsvTable table, Version schemaVersion, Stream data, int readSize)
{
this.table = table;
this.schemaVersion = schemaVersion;
this.data = data;
this.decoder = new CsvDecoderCallback[table.Fields.Length];
if (this.data.CanSeek)
{
this.position = this.data.Position;
}
this.readSize = readSize;
for (int i = 0; i < table.Fields.Length; i++)
{
this.decoder[i] = CsvDecoder.GetDecoder(table.Fields[i].Type);
}
this.cacheVersion = new long[table.Fields.Length];
this.cache = new object[table.Fields.Length];
this.row = new CsvRowBuffer(readSize);
this.unsupportedFields = table.GetFieldsAddedAfterVersion(this.schemaVersion);
}
private static object DecodeDateTime(byte[] src, int offset, int count)
{
if (count != "yyyy-MM-ddThh:mm:ss.sssZ".Length && count != "yyyy-MM-ddThh:mm:ss.ssssssZ".Length)
{
return(null);
}
int year;
if (!CsvDecoder.TryDecodeDigits(src, offset, 4, out year))
{
return(null);
}
offset += 4;
if (src[offset++] != 45)
{
return(null);
}
int month;
if (!CsvDecoder.TryDecodeDigits(src, offset, 2, out month))
{
return(null);
}
offset += 2;
if (src[offset++] != 45)
{
return(null);
}
int day;
if (!CsvDecoder.TryDecodeDigits(src, offset, 2, out day))
{
return(null);
}
offset += 2;
if (src[offset++] != 84)
{
return(null);
}
int hour;
if (!CsvDecoder.TryDecodeDigits(src, offset, 2, out hour))
{
return(null);
}
offset += 2;
if (src[offset++] != 58)
{
return(null);
}
int minute;
if (!CsvDecoder.TryDecodeDigits(src, offset, 2, out minute))
{
return(null);
}
offset += 2;
if (src[offset++] != 58)
{
return(null);
}
int second;
if (!CsvDecoder.TryDecodeDigits(src, offset, 2, out second))
{
return(null);
}
offset += 2;
if (src[offset++] != 46)
{
return(null);
}
int millisecond;
if (!CsvDecoder.TryDecodeDigits(src, offset, 3, out millisecond))
{
return(null);
}
offset += 3;
int num = 0;
if (count == "yyyy-MM-ddThh:mm:ss.ssssssZ".Length)
{
if (!CsvDecoder.TryDecodeDigits(src, offset, 3, out num))
{
return(null);
}
offset += 3;
}
if (src[offset++] != 90)
{
return(null);
}
object result;
try
{
DateTime dateTime = new DateTime(year, month, day, hour, minute, second, millisecond, DateTimeKind.Utc);
dateTime += TimeSpan.FromTicks((long)(num * 10));
result = dateTime;
}
catch (ArgumentException)
{
result = null;
}
return(result);
}
public object Decode(byte[] src, int offset, int count)
{
CsvDecoderCallback decoder = CsvDecoder.GetDecoder(this.elementType);
List <object> list = new List <object>();
new CsvParser(59, 39);
byte[] array = new byte[4096];
int i = offset;
int num = offset + count;
CsvArrayDecoder.State state = CsvArrayDecoder.State.Whitespace;
int num2 = 0;
while (i < num)
{
byte b = src[i++];
switch (state)
{
case CsvArrayDecoder.State.Whitespace:
if (b == 39)
{
state = CsvArrayDecoder.State.QuotedField;
num2 = 0;
}
else
{
byte b2 = b;
switch (b2)
{
case 9:
case 10:
case 13:
continue;
case 11:
case 12:
break;
default:
if (b2 == 32)
{
continue;
}
break;
}
state = CsvArrayDecoder.State.Field;
i--;
num2 = i;
}
break;
case CsvArrayDecoder.State.Field:
if (b == 59)
{
state = CsvArrayDecoder.State.Whitespace;
list.Add(decoder(src, num2, i - num2 - 1));
num2 = 0;
}
break;
case CsvArrayDecoder.State.QuotedField:
if (b == 39)
{
state = CsvArrayDecoder.State.EndQuote;
}
else if (num2 < array.Length)
{
array[num2++] = b;
}
break;
case CsvArrayDecoder.State.EndQuote:
if (b == 39)
{
state = CsvArrayDecoder.State.QuotedField;
if (num2 < array.Length)
{
array[num2++] = 39;
}
}
else
{
state = CsvArrayDecoder.State.EndQuoteIgnore;
i--;
list.Add(decoder(array, 0, num2));
}
break;
case CsvArrayDecoder.State.EndQuoteIgnore:
if (b == 59)
{
state = CsvArrayDecoder.State.Whitespace;
num2 = 0;
}
break;
}
}
switch (state)
{
case CsvArrayDecoder.State.Whitespace:
case CsvArrayDecoder.State.QuotedField:
case CsvArrayDecoder.State.EndQuote:
list.Add(decoder(array, 0, num2));
break;
case CsvArrayDecoder.State.Field:
list.Add(decoder(src, num2, i - num2));
break;
}
Array array2 = Array.CreateInstance(this.elementType, list.Count);
for (int j = 0; j < array2.Length; j++)
{
object obj = list[j];
if (obj == null)
{
if (this.elementType.IsValueType)
{
return(null);
}
}
else if (!this.elementType.Equals(obj.GetType()))
{
return(null);
}
array2.SetValue(obj, j);
}
return(array2);
}
