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/*
* Copyright (C) 2007-2012 Xagasoft, All rights reserved.
*
* This file is part of the libgats library and is released under the
* terms of the license contained in the file LICENSE.
*/
using System.IO;
namespace Com.Xagasoft.Gats
{
/// <summary>
/// Encapsulates a single byte array.
/// </summary>
/// <remarks>
/// A GATS string, unlike a C# string primitive, is simply an array of
/// bytes. This is actually more flexible in many ways, as it allows a
/// GatsString to contain any binary data. However, to encode textual data
/// there is no hard and fast standard. If a string primitive is passed
/// into a GatsString it will be encoded into UTF-8. If you would rather
/// use a different encoding then encode your data first, and then pass it
/// in as a byte array.
///
/// The ToString implementation provided by GatsString also assumes that
/// the contained data is UTF-8 encoded. This may cause some minor issues
/// when attempting to debug strings that contain binary.
/// </remarks>
public class GatsString : GatsObject
{
public byte[] Value { get; set; }
public GatsString()
{
}
public GatsString( byte[] val )
{
Value = val;
}
public GatsString( string val )
{
Value = System.Text.Encoding.UTF8.GetBytes( val );
}
public override string ToString()
{
return System.Text.Encoding.UTF8.GetString( Value );
}
public override void Read( Stream s, char cType )
{
int Size = (int)GatsInteger.ReadPackedInt( s );
Value = new byte[Size];
int SoFar = 0;
do
{
SoFar += s.Read( Value, SoFar, Size-SoFar );
} while( SoFar < Size );
}
public override void Write( Stream s )
{
s.WriteByte( (byte)'s' );
if( Value == null )
{
GatsInteger.WritePackedInt( s, 0 );
}
else
{
GatsInteger.WritePackedInt( s, Value.Length );
s.Write( Value, 0, Value.Length );
}
}
};
}
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