/// <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);
}
/// <summary>
/// Converts this NSObject into an equivalent object
/// of the .NET Runtime Environment.
/// <para><see cref="NSArray"/> objects are converted to arrays.</para>
/// <para><see cref="NSDictionary"/> objects are converted to objects extending the <see cref="Dictionary{TKey, TValue}"/> class.</para>
/// <para><see cref="NSSet"/> objects are converted to objects extending the <see cref="List{NSObject}"/> class.</para>
/// <para><see cref="NSNumber"/> objects are converted to primitive number values (<see cref="int"/>, <see cref="long"/>, <see cref="double"/> or <see cref="bool"/>).</para>
/// <para><see cref="NSString"/> objects are converted to <see cref="string"/> objects.</para>
/// <para><see cref="NSData"/> objects are converted to <see cref="byte"/> arrays.</para>
/// <para><see cref="NSDate"/> objects are converted to <see cref="System.DateTime"/> objects.</para>
/// <para><see cref="UID"/> objects are converted to <see cref="byte"/> arrays.</para>
/// </summary>
/// <returns>A native .NET object representing this NSObject's value.</returns>
public Object ToObject()
{
if (this is NSArray)
{
NSObject[] arrayA = ((NSArray)this).GetArray();
Object[] arrayB = new Object[arrayA.Length];
for (int i = 0; i < arrayA.Length; i++)
{
arrayB[i] = arrayA[i].ToObject();
}
return(arrayB);
}
if (this is NSDictionary)
{
Dictionary <string, NSObject> dictA = ((NSDictionary)this).GetDictionary();
Dictionary <string, Object> dictB = new Dictionary <string, Object>(dictA.Count);
foreach (KeyValuePair <string, NSObject> kvp in dictA)
{
dictB.Add(kvp.Key, kvp.Value.ToObject());
}
return(dictB);
}
if (this is NSSet)
{
List <NSObject> setA = ((NSSet)this).GetSet();
List <Object> setB = new List <Object>();
foreach (NSObject o in setA)
{
setB.Add(o.ToObject());
}
return(setB);
}
if (this is NSNumber)
{
NSNumber num = (NSNumber)this;
switch (num.GetNSNumberType())
{
case NSNumber.INTEGER: {
long longVal = num.ToLong();
if (longVal > int.MaxValue || longVal < int.MinValue)
{
return(longVal);
}
return(num.ToInt());
}
case NSNumber.REAL:
return(num.ToDouble());
case NSNumber.BOOLEAN:
return(num.ToBool());
default:
return(num.ToDouble());
}
}
if (this is NSString)
{
return(((NSString)this).GetContent());
}
if (this is NSData)
{
return(((NSData)this).Bytes);
}
if (this is NSDate)
{
return(((NSDate)this).Date);
}
if (this is UID)
{
return(((UID)this).Bytes);
}
return(this);
}
