/// <summary>
/// Parse an IToggle from the specified text. Throws ArgumentException if there's a problem.
/// </summary>
/// <param name="module"></param>
/// <param name="text"></param>
/// <returns></returns>
public static IToggle Require(PartModule module, string text)
{
if (string.IsNullOrEmpty(text))
{
throw new ArgumentException("must supply a value");
}
text = text.Trim();
// Check for constants.
if (text == "true")
{
return(Constant.TRUE);
}
if (text == "false")
{
return(Constant.FALSE);
}
// Perhaps it's an inverted toggle?
if (text.StartsWith(NOT_OPERATOR))
{
return(Inverter.of(Require(module, text.Substring(NOT_OPERATOR.Length))));
}
// Maybe it's an identifier for a toggle.
IToggle found = Identifiers.FindFirst <IToggle>(module.part, text);
if (found != null)
{
return(found);
}
// Could it be a named-field reference?
Identifiers.IFieldEvaluator field = Identifiers.FindKSPField(module.part, text);
if (field != null)
{
if (!typeof(bool).IsAssignableFrom(field.FieldType))
{
throw new ArgumentException("Can't use " + text + " as a boolean field (it's of type " + field.FieldType.Name + ")");
}
return(new NamedField(field));
}
// Perhaps it's a parameterized expression?
ParsedParameters parsedParams = ParsedParameters.TryParse(text);
if (parsedParams != null)
{
for (int i = 0; i < PARSEABLE_TOGGLES.Length; ++i)
{
IToggle parsed = PARSEABLE_TOGGLES[i](module, parsedParams);
if (parsed != null)
{
return(parsed);
}
}
}
// Nope, not parseable.
throw new ArgumentException("Invalid toggle syntax \"" + text + "\"");
}
/// <summary>
/// Parse an IScalar from the specified text. Throws ArgumentException if there's a problem.
/// </summary>
/// <param name="module"></param>
/// <param name="text"></param>
/// <returns></returns>
public static IScalar Require(PartModule module, string text)
{
if (string.IsNullOrEmpty(text))
{
throw new ArgumentException("must supply a value");
}
text = text.Trim();
// Perhaps it's an inverted scalar?
if (text.StartsWith(INVERT_OPERATOR))
{
return(LinearTransform.Invert(Require(module, text.Substring(INVERT_OPERATOR.Length))));
}
// Maybe it's an identifier for a scalar.
IScalar found = Identifiers.FindFirst <IScalar>(module.part, text);
if (found != null)
{
return(found);
}
// Could it be a named-field reference?
Identifiers.IFieldEvaluator field = Identifiers.FindKSPField(module.part, text);
if (field != null)
{
if (NamedSingleField.Is(field))
{
return(new NamedSingleField(field));
}
if (NamedDoubleField.Is(field))
{
return(new NamedDoubleField(field));
}
if (NamedIntegerField.Is(field))
{
return(new NamedIntegerField(field));
}
if (NamedShortField.Is(field))
{
return(new NamedShortField(field));
}
if (NamedLongField.Is(field))
{
return(new NamedLongField(field));
}
throw new ArgumentException("Can't use " + text + " as a scalar field (it's of type " + field.FieldType.Name + ")");
}
// Perhaps it's a parameterized expression?
ParsedParameters parsedParams = ParsedParameters.TryParse(text);
if (parsedParams != null)
{
for (int i = 0; i < PARSEABLE_SCALARS.Length; ++i)
{
IScalar parsed = PARSEABLE_SCALARS[i](module, parsedParams);
if (parsed != null)
{
return(parsed);
}
}
}
// Last chance: it could be a static value.
return(Constant.Of(Statics.Parse(module, text)));
}