/// <summary>
/// Parses a data object from the current parsing position.
/// This can either be a NSData object or a GnuStep NSNumber or NSDate.
/// The prerequisite for calling this method is, that a data begin token has been read.
/// </summary>
/// <returns>The data object found at the parsing position.</returns>
NSObject ParseData()
{
NSObject obj = null;
//Skip begin token
Skip();
if (Accept(DATA_GSOBJECT_BEGIN_TOKEN))
{
Skip();
Expect(DATA_GSBOOL_BEGIN_TOKEN, DATA_GSDATE_BEGIN_TOKEN, DATA_GSINT_BEGIN_TOKEN, DATA_GSREAL_BEGIN_TOKEN);
if (Accept(DATA_GSBOOL_BEGIN_TOKEN))
{
//Boolean
Skip();
Expect(DATA_GSBOOL_TRUE_TOKEN, DATA_GSBOOL_FALSE_TOKEN);
if (Accept(DATA_GSBOOL_TRUE_TOKEN))
obj = new NSNumber(true);
else
obj = new NSNumber(false);
//Skip the parsed boolean token
Skip();
}
else if (Accept(DATA_GSDATE_BEGIN_TOKEN))
{
//Date
Skip();
string dateString = ReadInputUntil(DATA_END_TOKEN);
obj = new NSDate(dateString);
}
else if (Accept(DATA_GSINT_BEGIN_TOKEN, DATA_GSREAL_BEGIN_TOKEN))
{
//Number
Skip();
string numberString = ReadInputUntil(DATA_END_TOKEN);
obj = new NSNumber(numberString);
}
//parse data end token
Read(DATA_END_TOKEN);
}
else
{
string dataString = ReadInputUntil(DATA_END_TOKEN);
dataString = Regex.Replace(dataString, "\\s+", "");
int numBytes = dataString.Length / 2;
byte[] bytes = new byte[numBytes];
for (int i = 0; i < bytes.Length; i++)
{
string byteString = dataString.Substring(i * 2, 2);
int byteValue = Convert.ToInt32(byteString, 16);
bytes[i] = (byte)byteValue;
}
obj = new NSData(bytes);
//skip end token
Skip();
}
return obj;
}
public static void ConstructorTest()
{
var actual = new NSDate("2000-01-01T00:00:00Z");
var expected = new DateTime(2000, 1, 1, 0, 0, 0, DateTimeKind.Utc);
Assert.AreEqual(expected, actual.Date.ToUniversalTime());
}
/// <summary>
/// Parses a data object from the current parsing position.
/// This can either be a NSData object or a GnuStep NSNumber or NSDate.
/// The prerequisite for calling this method is, that a data begin token has been read.
/// </summary>
/// <returns>The data object found at the parsing position.</returns>
NSObject ParseData()
{
NSObject obj = null;
//Skip begin token
Skip();
if (Accept(DATA_GSOBJECT_BEGIN_TOKEN))
{
Skip();
Expect(DATA_GSBOOL_BEGIN_TOKEN, DATA_GSDATE_BEGIN_TOKEN, DATA_GSINT_BEGIN_TOKEN,
DATA_GSREAL_BEGIN_TOKEN);
if (Accept(DATA_GSBOOL_BEGIN_TOKEN))
{
//Boolean
Skip();
Expect(DATA_GSBOOL_TRUE_TOKEN, DATA_GSBOOL_FALSE_TOKEN);
if (Accept(DATA_GSBOOL_TRUE_TOKEN))
{
obj = new NSNumber(true);
}
else
{
obj = new NSNumber(false);
}
//Skip the parsed boolean token
Skip();
}
else if (Accept(DATA_GSDATE_BEGIN_TOKEN))
{
//Date
Skip();
string dateString = ReadInputUntil(DATA_END_TOKEN);
obj = new NSDate(dateString);
}
else if (Accept(DATA_GSINT_BEGIN_TOKEN, DATA_GSREAL_BEGIN_TOKEN))
{
//Number
Skip();
string numberString = ReadInputUntil(DATA_END_TOKEN);
obj = new NSNumber(numberString);
}
//parse data end token
Read(DATA_END_TOKEN);
}
else
{
string dataString = ReadInputUntil(DATA_END_TOKEN);
dataString = Regex.Replace(dataString, "\\s+", "");
int numBytes = dataString.Length / 2;
byte[] bytes = new byte[numBytes];
for (int i = 0; i < bytes.Length; i++)
{
string byteString = dataString.Substring(i * 2, 2);
int byteValue = Convert.ToInt32(byteString, 16);
bytes[i] = (byte)byteValue;
}
obj = new NSData(bytes);
//skip end token
Skip();
}
return(obj);
}
