/// <summary>
/// Parses most common JSON date formats
/// </summary>
/// <param name="input">JSON value to parse</param>
/// <returns>DateTime</returns>
public static DateTime ParseJsonDate(this string input, CultureInfo culture)
{
input = input.Replace("\n", "");
input = input.Replace("\r", "");
input = input.RemoveSurroundingQuotes();
long unix;
#if !PocketPC
if (Int64.TryParse(input, out unix))
#else
if (ParseAssistant.TryParse(input, out unix))
#endif
{
var epoch = new DateTime(1970, 1, 1, 0, 0, 0, DateTimeKind.Utc);
return(epoch.AddSeconds(unix));
}
if (input.Contains("/Date("))
{
return(ExtractDate(input, @"\\?/Date\((-?\d+)(-|\+)?([0-9]{4})?\)\\?/", culture));
}
if (input.Contains("new Date("))
{
input = input.Replace(" ", "");
// because all whitespace is removed, match against newDate( instead of new Date(
return(ExtractDate(input, @"newDate\((-?\d+)*\)", culture));
}
return(ParseFormattedDate(input, culture));
}
private static DateTime ParseFormattedDate(string input, CultureInfo culture)
{
var formats = new[] {
"u",
"s",
"yyyy'-'MM'-'dd'T'HH':'mm':'ss'Z'",
"yyyy-MM-ddTHH:mm:ssZ",
"yyyy-MM-dd HH:mm:ssZ",
"yyyy-MM-ddTHH:mm:ss",
"yyyy-MM-ddTHH:mm:sszzzzzz",
"M/d/yyyy h:mm:ss tt" // default format for invariant culture
};
DateTime date;
#if !PocketPC
if (DateTime.TryParseExact(input, formats, culture, DateTimeStyles.None, out date))
#else
if (ParseAssistant.TryParseExact(input, formats, culture, DateTimeStyles.None, out date))
#endif
{
return(date);
}
#if !PocketPC
if (DateTime.TryParse(input, culture, DateTimeStyles.None, out date))
#else
if (ParseAssistant.TryParse(input, culture, DateTimeStyles.None, out date))
#endif
{
return(date);
}
return(default(DateTime));
}
protected override int ReadFrameHeader()
{
if (Read8() != 'F' ||
Read8() != 'R' ||
Read8() != 'A' ||
Read8() != 'M' ||
Read8() != 'E')
{
throw new CorruptStreamException("Invalid frame signature.");
}
var c = Read8();
if (c != '\n' && c != ' ')
{
throw new CorruptStreamException("Malformed frame header.");
}
Width = _HeaderWidth;
Height = _HeaderHeight;
while (c != '\n')
{
c = Read8();
if (c == 'W')
{
var s = ReadParameter(out c);
if (ParseAssistant.TryParseIntegerValue(s, out var width))
{
Width = width;
}
else
{
throw new CorruptStreamException("Invalid frame header width.");
}
}
else if (c == 'H')
{
var s = ReadParameter(out c);
if (ParseAssistant.TryParseIntegerValue(s, out var height))
{
Height = height;
}
else
{
throw new CorruptStreamException("Invalid frame header height.");
}
}
else
{
var p = Utf8.Decode(new[] { (byte)c });
var s = ReadParameter(out c);
_Log.Warn(string.Format("Ignoring frame header parameter {0}{1}", p, s));
}
}
return(Width * Height * 3 / 2);
}
public static object ParsePrimitive(string value)
{
if (string.IsNullOrEmpty(value))
{
return(null);
}
bool boolValue;
#if !NETCF
if (bool.TryParse(value, out boolValue))
{
return(boolValue);
}
#else
if (ParseAssistant.TryParse(value, out boolValue))
{
return(boolValue);
}
#endif
decimal decimalValue;
#if !NETCF
if (decimal.TryParse(value, NumberStyles.Number, CultureInfo.InvariantCulture, out decimalValue))
#else // TODO NETCF check NumberStyles.Number for what
if (ParseAssistant.TryParse(value, NumberStyles.Number, CultureInfo.InvariantCulture, out decimalValue))
#endif
{
if (decimalValue == decimal.Truncate(decimalValue))
{
if (decimalValue <= ulong.MaxValue && decimalValue >= 0)
{
return((ulong)decimalValue);
}
if (decimalValue <= long.MaxValue && decimalValue >= long.MinValue)
{
var longValue = (long)decimalValue;
if (longValue <= sbyte.MaxValue && longValue >= sbyte.MinValue)
{
return((sbyte)longValue);
}
if (longValue <= byte.MaxValue && longValue >= byte.MinValue)
{
return((byte)longValue);
}
if (longValue <= short.MaxValue && longValue >= short.MinValue)
{
return((short)longValue);
}
if (longValue <= ushort.MaxValue && longValue >= ushort.MinValue)
{
return((ushort)longValue);
}
if (longValue <= int.MaxValue && longValue >= int.MinValue)
{
return((int)longValue);
}
if (longValue <= uint.MaxValue && longValue >= uint.MinValue)
{
return((uint)longValue);
}
}
}
return(decimalValue);
}
float floatValue;
#if !NETCF
if (float.TryParse(value, NumberStyles.Float, CultureInfo.InvariantCulture, out floatValue))
{
return(floatValue);
}
#else // TODO NETCF check NumberStyles.Number for what
if (ParseAssistant.TryParse(value, NumberStyles.Float, CultureInfo.InvariantCulture, out floatValue))
{
return(floatValue);
}
#endif
double doubleValue;
#if !NETCF
if (double.TryParse(value, NumberStyles.Float, CultureInfo.InvariantCulture, out doubleValue))
{
return(doubleValue);
}
#else // TODO NETCF check NumberStyles.Number for what
if (ParseAssistant.TryParse(value, NumberStyles.Float, CultureInfo.InvariantCulture, out doubleValue))
{
return(doubleValue);
}
#endif
return(null);
}
protected override void ReadStreamHeader()
{
// YUV4MPEG2
if (Read8() != 'Y' ||
Read8() != 'U' ||
Read8() != 'V' ||
Read8() != '4' ||
Read8() != 'M' ||
Read8() != 'P' ||
Read8() != 'E' ||
Read8() != 'G' ||
Read8() != '2')
{
throw new CorruptStreamException("Invalid stream signature.");
}
var c = Read8();
if (c != '\n' && c != ' ')
{
throw new CorruptStreamException("Malformed stream header.");
}
while (c != '\n')
{
c = Read8();
if (c == 'W')
{
var s = ReadParameter(out c);
if (!ParseAssistant.TryParseIntegerValue(s, out _HeaderWidth))
{
throw new CorruptStreamException("Invalid stream header width.");
}
}
else if (c == 'H')
{
var s = ReadParameter(out c);
if (!ParseAssistant.TryParseIntegerValue(s, out _HeaderHeight))
{
throw new CorruptStreamException("Invalid stream header height.");
}
}
else if (c == 'F')
{
var s = ReadParameter(out c);
var split = s.Split(':');
if (split.Length != 2)
{
throw new CorruptStreamException("Invalid stream header frame rate.");
}
if (!ParseAssistant.TryParseIntegerValue(split[0], out var num) ||
!ParseAssistant.TryParseIntegerValue(split[1], out var den))
{
throw new CorruptStreamException("Invalid stream header frame rate.");
}
_HeaderFrameRate = (double)num / den;
}
else if (c == 'I')
{
_HeaderInterlacing = ReadParameter(out c);
}
else if (c == 'A')
{
var s = ReadParameter(out c);
var split = s.Split(':');
if (split.Length != 2)
{
throw new CorruptStreamException("Invalid stream header pixel aspect ratio.");
}
if (!ParseAssistant.TryParseIntegerValue(split[0], out var num) ||
!ParseAssistant.TryParseIntegerValue(split[1], out var den))
{
throw new CorruptStreamException("Invalid stream header pixel aspect ratio.");
}
_HeaderPixelAspectRatio = (double)num / den;
}
else if (c == 'C')
{
_HeaderColourSpace = ReadParameter(out c);
}
else if (c == 'X')
{
_HeaderComment = ReadParameter(out c);
}
else
{
var p = Utf8.Decode(new[] { (byte)c });
var s = ReadParameter(out c);
_Log.Warn(string.Format("Ignoring stream header parameter {0}{1}", p, s));
}
}
// log details
var headerParams = new List <string>();
if (_HeaderWidth > 0)
{
headerParams.Add($"Width={_HeaderWidth}");
}
if (_HeaderHeight > 0)
{
headerParams.Add($"Height={_HeaderHeight}");
}
if (_HeaderFrameRate > 0)
{
headerParams.Add($"FrameRate={_HeaderFrameRate}");
}
if (_HeaderInterlacing != null)
{
headerParams.Add($"Interlacing={_HeaderInterlacing}");
}
if (_HeaderPixelAspectRatio > 0)
{
headerParams.Add($"PixelAspectRatio={_HeaderPixelAspectRatio}");
}
if (_HeaderColourSpace != null)
{
headerParams.Add($"ColourSpace={_HeaderColourSpace}");
}
if (_HeaderComment != null)
{
headerParams.Add($"Comment={_HeaderComment}");
}
_Log.Debug(Id, $"Stream Header => {string.Join(", ", headerParams)}");
}
private static ParseStringDelegate GetParseFn()
{
//Note the generic typeof(T) is faster than using var type = typeof(T)
if (typeof(T) == typeof(bool))
{
return(value => bool.Parse(value));
}
if (typeof(T) == typeof(byte))
{
return(value => byte.Parse(value));
}
if (typeof(T) == typeof(sbyte))
{
return(value => sbyte.Parse(value));
}
if (typeof(T) == typeof(short))
{
return(value => short.Parse(value));
}
if (typeof(T) == typeof(int))
{
return(value => int.Parse(value));
}
if (typeof(T) == typeof(long))
{
return(value => long.Parse(value));
}
if (typeof(T) == typeof(float))
{
return(value => float.Parse(value, CultureInfo.InvariantCulture));
}
if (typeof(T) == typeof(double))
{
return(value => double.Parse(value, CultureInfo.InvariantCulture));
}
if (typeof(T) == typeof(decimal))
{
return(value => decimal.Parse(value, CultureInfo.InvariantCulture));
}
if (typeof(T) == typeof(Guid))
{
return(value => new Guid(value));
}
if (typeof(T) == typeof(DateTime?))
{
return(value => DateTimeSerializer.ParseShortestNullableXsdDateTime(value));
}
if (typeof(T) == typeof(DateTime) || typeof(T) == typeof(DateTime?))
{
return(value => DateTimeSerializer.ParseShortestXsdDateTime(value));
}
#if !NETCF
if (typeof(T) == typeof(DateTimeOffset) || typeof(T) == typeof(DateTimeOffset?))
{
return(value => DateTimeSerializer.ParseDateTimeOffset(value));
}
#endif
if (typeof(T) == typeof(TimeSpan))
{
return(value => DateTimeSerializer.ParseTimeSpan(value));
}
if (typeof(T) == typeof(TimeSpan?))
{
return(value => DateTimeSerializer.ParseNullableTimeSpan(value));
}
#if !MONOTOUCH && !SILVERLIGHT && !XBOX && !ANDROID && !NETCF
if (typeof(T) == typeof(System.Data.Linq.Binary))
{
return(value => new System.Data.Linq.Binary(Convert.FromBase64String(value)));
}
#endif
if (typeof(T) == typeof(char))
{
char cValue;
#if !NETCF
return(value => char.TryParse(value, out cValue) ? cValue : '\0');
#else
return(value => ParseAssistant.TryParse(value, out cValue) ? cValue : '\0');
#endif
}
if (typeof(T) == typeof(ushort))
{
return(value => ushort.Parse(value));
}
if (typeof(T) == typeof(uint))
{
return(value => uint.Parse(value));
}
if (typeof(T) == typeof(ulong))
{
return(value => ulong.Parse(value));
}
if (typeof(T) == typeof(bool?))
{
return(value => string.IsNullOrEmpty(value) ? (bool?)null : bool.Parse(value));
}
if (typeof(T) == typeof(byte?))
{
return(value => string.IsNullOrEmpty(value) ? (byte?)null : byte.Parse(value));
}
if (typeof(T) == typeof(sbyte?))
{
return(value => string.IsNullOrEmpty(value) ? (sbyte?)null : sbyte.Parse(value));
}
if (typeof(T) == typeof(short?))
{
return(value => string.IsNullOrEmpty(value) ? (short?)null : short.Parse(value));
}
if (typeof(T) == typeof(int?))
{
return(value => string.IsNullOrEmpty(value) ? (int?)null : int.Parse(value));
}
if (typeof(T) == typeof(long?))
{
return(value => string.IsNullOrEmpty(value) ? (long?)null : long.Parse(value));
}
if (typeof(T) == typeof(float?))
{
return(value => string.IsNullOrEmpty(value) ? (float?)null : float.Parse(value, CultureInfo.InvariantCulture));
}
if (typeof(T) == typeof(double?))
{
return(value => string.IsNullOrEmpty(value) ? (double?)null : double.Parse(value, CultureInfo.InvariantCulture));
}
if (typeof(T) == typeof(decimal?))
{
return(value => string.IsNullOrEmpty(value) ? (decimal?)null : decimal.Parse(value, CultureInfo.InvariantCulture));
}
if (typeof(T) == typeof(TimeSpan?))
{
return(value => string.IsNullOrEmpty(value) ? (TimeSpan?)null : TimeSpan.Parse(value));
}
if (typeof(T) == typeof(Guid?))
{
return(value => string.IsNullOrEmpty(value) ? (Guid?)null : new Guid(value));
}
if (typeof(T) == typeof(ushort?))
{
return(value => string.IsNullOrEmpty(value) ? (ushort?)null : ushort.Parse(value));
}
if (typeof(T) == typeof(uint?))
{
return(value => string.IsNullOrEmpty(value) ? (uint?)null : uint.Parse(value));
}
if (typeof(T) == typeof(ulong?))
{
return(value => string.IsNullOrEmpty(value) ? (ulong?)null : ulong.Parse(value));
}
if (typeof(T) == typeof(char?))
{
char cValue;
#if !NETCF
return(value => string.IsNullOrEmpty(value) ? (char?)null : char.TryParse(value, out cValue) ? cValue : '\0');
#else
return(value => string.IsNullOrEmpty(value) ? (char?)null : ParseAssistant.TryParse(value, out cValue) ? cValue : '\0');
#endif
}
return(null);
}
public static DateTime?ParseManual(string dateTimeStr)
{
if (dateTimeStr == null || dateTimeStr.Length < "YYYY-MM-DD".Length)
{
return(null);
}
var dateKind = DateTimeKind.Utc;
if (dateTimeStr.EndsWith("Z"))
{
dateTimeStr = dateTimeStr.Substring(0, dateTimeStr.Length - 1);
}
var parts = dateTimeStr.Split('T');
if (parts.Length == 1)
{
parts = dateTimeStr.SplitOnFirst(' ');
}
var dateParts = parts[0].Split('-');
int hh = 0, min = 0, ss = 0, ms = 0;
double subMs = 0;
int offsetMultiplier = 0;
if (parts.Length == 2)
{
var timeStringParts = parts[1].Split('+');
if (timeStringParts.Length == 2)
{
offsetMultiplier = -1;
}
else
{
timeStringParts = parts[1].Split('-');
if (timeStringParts.Length == 2)
{
offsetMultiplier = 1;
}
}
var timeOffset = timeStringParts.Length == 2 ? timeStringParts[1] : null;
var timeParts = timeStringParts[0].Split(':');
if (timeParts.Length == 3)
{
#if !NETCF
int.TryParse(timeParts[0], out hh);
int.TryParse(timeParts[1], out min);
#else
ParseAssistant.TryParse(timeParts[0], out hh);
ParseAssistant.TryParse(timeParts[1], out min);
#endif
var secParts = timeParts[2].Split('.');
#if !NETCF
int.TryParse(secParts[0], out ss);
#else
ParseAssistant.TryParse(secParts[0], out ss);
#endif
if (secParts.Length == 2)
{
var msStr = secParts[1].PadRight(3, '0');
ms = int.Parse(msStr.Substring(0, 3));
if (msStr.Length > 3)
{
var subMsStr = msStr.Substring(3);
subMs = double.Parse(subMsStr) / Math.Pow(10, subMsStr.Length);
}
}
}
var dateTime = new DateTime(int.Parse(dateParts[0]), int.Parse(dateParts[1]), int.Parse(dateParts[2]), hh, min, ss, ms, dateKind);
if (subMs != 0)
{
dateTime.AddMilliseconds(subMs);
}
if (offsetMultiplier != 0 && timeOffset != null)
{
timeParts = timeOffset.Split(':');
if (timeParts.Length == 2)
{
hh = int.Parse(timeParts[0]);
min = int.Parse(timeParts[1]);
}
else
{
hh = int.Parse(timeOffset.Substring(0, 2));
min = int.Parse(timeOffset.Substring(2));
}
dateTime = dateTime.AddHours(offsetMultiplier * hh);
dateTime = dateTime.AddMinutes(offsetMultiplier * min);
}
return(dateTime.ToLocalTime().Prepare());
}
return(null);
}
