internal static GraphCommand FromString(string content)
{
if (String.IsNullOrEmpty(content))
{
throw new ArgumentException("Invalid argument", "content");
}
content = content.Trim();
if (String.IsNullOrEmpty(content))
{
throw new ArgumentException("Invalid argument", "content");
}
char[] delimiter = new char[] { textDelimiter };
string[] inputs = content.Split(delimiter, StringSplitOptions.RemoveEmptyEntries);
if (null == inputs || (inputs.Length <= 0))
{
return(null);
}
Type enumType = typeof(GraphCommand.Name);
object commandName = Enum.Parse(enumType, inputs[0]);
GraphCommand command = new GraphCommand((Name)commandName);
int inputIndex = 0;
foreach (string input in inputs)
{
// Skip past the command name.
if (inputIndex++ < 1)
{
continue;
}
if (String.IsNullOrEmpty(input))
{
throw new ArgumentException("Invalid argument", "content");
}
if ((input.Length < 2) || (input[1] != ':'))
{
throw new ArgumentException("Invalid argument", "content");
}
int intValue = 0;
bool boolValue = false;
double doubleValue = 0.0;
string value = input.Substring(2); // Skip past the "x:" portion.
switch (input[0])
{
case 'b':
if (!Boolean.TryParse(value, out boolValue))
{
throw new InvalidCastException("Invalid 'bool' value");
}
command.AppendArgument(boolValue);
break;
case 'd':
if (!Double.TryParse(value, out doubleValue))
{
throw new InvalidCastException("Invalid 'double' value");
}
command.AppendArgument(doubleValue);
break;
case 'e':
int commaIndex = value.IndexOf(',');
if (-1 == commaIndex)
{
throw new ArgumentException("Invalid argument", "content");
}
string fullTypeName = value.Substring(0, commaIndex);
string enumValue = value.Substring(commaIndex + 1); // Skip ','.
System.Type type = GraphCommand.GetEnumType(fullTypeName);
command.AppendArgument(Enum.Parse(type, enumValue));
break;
case 'i':
if (!Int32.TryParse(value, out intValue))
{
throw new InvalidCastException("Invalid 'int' value");
}
command.AppendArgument(intValue);
break;
case 's':
string transformed = value.Replace("\\n", "\n");
command.AppendArgument(transformed);
break;
case 'u':
if (value.StartsWith("0x") || value.StartsWith("0X"))
{
value = value.Substring(2);
}
uint unsignedValue = UInt32.Parse(value, NumberStyles.HexNumber);
command.AppendArgument(unsignedValue);
break;
}
}
return(command);
}