Float deserialisation: difference in Rust & Python parsing

[RickyDaMa]

A weird nuance that we spotted internally when someone's designspace wouldn't load in Rust tooling

Rust does not permit extra surrounding whitespace in strings being parsed. " 123".parse::<f32>() is an Err(InvalidDigit)

Python allows this, parsing without issue, giving 123.0

Are we happy being more pedantic or did we want to consider stripping whitespace to match behaviour?

[madig]

I can see that Rust is more pedantic here, but I think for the purposes of parsing messy UFO sources, I'd allow whitespace if it's not too onerous. On the other hand, this seems to have been a user error during Find & Replace. So, doing nothing for now could be a good option.