protected sealed override void Deserialize(Stream stream)
{
var scriptSize = (uint)ReadVarInt(stream);
if (scriptSize > Script.MaximumScriptByteSize)
{
throw new SerializationException("Unable to deserialize: Script length greater than maximum allowable script size: " + scriptSize);
}
var atoms = new ArrayList <IScriptAtom>();
int read = 0;
while (read < scriptSize)
{
var atom = ScriptAtomFactory.GetAtom(stream);
read += atom.SerializedByteSize;
atoms.Add(atom);
}
if (read > scriptSize)
{
stream.Position -= read - scriptSize;
throw new SerializationException("Unable to deserialize: Script longer than expected.");
}
atoms.CollectionChanged += AtomsChanged;
Atoms = atoms;
Freeze();
}
public static Script Parse(string scriptString)
{
var atoms = scriptString.Split(' ');
var script = new Script();
StringBuilder valueStr = null;
foreach (var atom in atoms)
{
IScriptAtom newAtom = null;
if (valueStr != null)
{
valueStr.Append(" ");
if (atom.EndsWith("'"))
{
if (atom.EndsWith(@"\''"))
{
valueStr.Append(atom.Substring(0, atom.Length - 3));
valueStr.Append("'");
var valueBytes = Encoding.ASCII.GetBytes(valueStr.ToString());
newAtom = new ValueAtom(valueBytes);
script.Atoms.Add(newAtom);
valueStr = null;
}
else if (atom.EndsWith(@"\'"))
{
valueStr.Append(atom.Substring(0, atom.Length - 2));
valueStr.Append("'");
}
else
{
valueStr.Append(atom.Substring(0, atom.Length - 1));
var valueBytes = Encoding.ASCII.GetBytes(valueStr.ToString());
newAtom = new ValueAtom(valueBytes);
script.Atoms.Add(newAtom);
valueStr = null;
}
}
else
{
valueStr.Append(atom);
}
continue;
}
if (atom.StartsWith("OP_"))
{
var opcode = (ScriptOpCode)Enum.Parse(typeof(ScriptOpCode), atom, false);
newAtom = ScriptAtomFactory.GetOpAtom(opcode);
}
else if (atom.StartsWith("'"))
{
if (atom.EndsWith("'"))
{
if (atom.EndsWith(@"\''"))
{
var valueBytes = Encoding.ASCII.GetBytes(atom.Substring(1, atom.Length - 4) + "'");
newAtom = new ValueAtom(valueBytes);
}
else if (atom.EndsWith(@"\'"))
{
valueStr = new StringBuilder();
valueStr.Append(atom.Substring(1, atom.Length - 3));
valueStr.Append("'");
}
else if (atom.Length > 1)
{
if (atom.Length > 2)
{
var valueBytes = Encoding.ASCII.GetBytes(atom.Substring(1, atom.Length - 2));
newAtom = new ValueAtom(valueBytes);
}
}
else
{
valueStr = new StringBuilder();
}
}
else
{
valueStr = new StringBuilder();
valueStr.Append(atom.Substring(1, atom.Length - 1));
}
}
else if (atom.Length > 0)
{
var valueBytes = BufferOperations.FromByteString(atom, Endianness.BigEndian);
newAtom = new ValueAtom(valueBytes);
}
if (newAtom != null)
{
script.Atoms.Add(newAtom);
}
}
if (valueStr != null)
{
throw new FormatException("Unclosed script string found");
}
script.Freeze();
return(script);
}
