public static bool TryParse(string representation, out Ratio?value)
{
if (representation is null)
{
throw new ArgumentNullException(nameof(representation));
}
value = null;
// Not too sure if quantities cannot contain colons themselves, but I have
// no time to worry about that now.
var components = representation.Split(':');
if (components.Length != 2)
{
return(false);
}
if (!Quantity.TryParse(components[0].Trim(), out var numerator))
{
return(false);
}
if (!Quantity.TryParse(components[1].Trim(), out var denumerator))
{
return(false);
}
value = new Ratio(numerator, denumerator);
return(true);
}
public static bool TryParse(string value, Type primitiveType, out object?parsed)
{
if (value == null)
{
throw new ArgumentNullException(nameof(value));
}
if (!typeof(Any).IsAssignableFrom(primitiveType))
{
throw new ArgumentException($"Must be a subclass of {nameof(Any)}.", nameof(primitiveType));
}
bool success;
(success, parsed) = parse();
return(success);
(bool success, object?p) parse()
{
if (primitiveType == typeof(Boolean))
{
return(Boolean.TryParse(value, out var p), p?.Value);
}
else if (primitiveType == typeof(Code))
{
return(Code.TryParse(value, out var p), p);
}
else if (primitiveType == typeof(Concept))
{
return(Concept.TryParse(value, out var p), p);
}
else if (primitiveType == typeof(Decimal))
{
return(Decimal.TryParse(value, out var p), p?.Value);
}
else if (primitiveType == typeof(Integer))
{
return(Integer.TryParse(value, out var p), p?.Value);
}
else if (primitiveType == typeof(Long))
{
return(Long.TryParse(value, out var p), p?.Value);
}
else if (primitiveType == typeof(Date))
{
return(Date.TryParse(value, out var p), p);
}
else if (primitiveType == typeof(DateTime))
{
return(DateTime.TryParse(value, out var p), p);
}
else if (primitiveType == typeof(Time))
{
return(Time.TryParse(value, out var p), p);
}
else if (primitiveType == typeof(Ratio))
{
return(Ratio.TryParse(value, out var p), p);
}
else if (primitiveType == typeof(Quantity))
{
return(Quantity.TryParse(value, out var p), p);
}
else if (primitiveType == typeof(String))
{
return(String.TryParse(value, out var p), p?.Value);
}
else
{
return(false, null);
}
}
}
