Parse into Option<T>

[jhpratt]

This could be useful for things where an element may be present and have useful info, but is sometimes expected to not be present. My specific use case is ranking of sports teams — I currently have to catch the error and reparse into a different struct.

[Hexilee]

It may be useful but currently I do not have the use case and time. Maybe you can set a "flag" as default value?

[jhpratt]

@Hexilee That's certainly a possibility. Would you accept a PR if I created one? I'd certainly take a look at the code if you would!

[Hexilee]

PR is welcome! I will take some time to review the code and make the decision.

[jhpratt]

@Hexilee Looking through things now; it appears as though the only two errors that can be returned are SourceNotFound and SourceEmpty. If this is correct, would you agree that the appropriate thing to do is to cast both of them to an Option?

If that's the correct course of action, I actually think this should be as simple as calling .ok() on the result, as we're disregarding both possible errors.

[Hexilee]

The purpose to use Result instead of Option is debugging more conveniently. Maybe you can use Option and log the err.

[Hexilee]

@jhpratt Option<T> is supported in v0.7, documentation will be updated in few days, you can refer to the test compound.rs now.

[Hexilee]

I will close this issue