Is your feature request related to a problem?

As String Notation functions get more complex, it can be useful to report parsing errors. For example, in our code, I would like to add a bit of logic to check that the actual name being parsed is a name that exists in some table. Failing the parsing without providing an error makes it difficult to find this sort of thing.

Proposed solution

Additionally support return types of, Pstring + T (where Pstring is the type that is parsed from). If parsing fails (with inl err), then print the error message when parsing fails.

Alternative solutions

No response

Additional context

No response