Custom punctuation containing $

[fef1312]

I'm trying to define this custom punctuation for my (yes, somewhat cursed) DSL:

custom_punctuation!(FMap, <$>);

but I get an error because the call to custom_punctuation_len! in the macro expansion doesn't have a rule matching the $ token. I don't know if this is intentional due to potential clashes with Rust's macro syntax, but I couldn't find a related issue and the docs don't seem to mention it, either. However, since Token![$] does work just fine, I feel like this should also work or at least have the documentation say it doesn't.

Thanks for this awesome library by the way, I really appreciate your work!

[dtolnay]

I have published a fix in syn 2.0.58.

[fef1312]

Excellent, thanks!