Incorrectly highlighting 'isize' and 'usize' suffix in Rust.

[Grazfather]

I reported it where I found it in rust-lang/rust-by-example#662

@mdinger Thinks it can be fixed here:
https://github.com/ajaxorg/ace/blob/master/lib/ace/mode/rust_highlight_rules.js#L129-L134

Here is where they changed it in rust: rust-lang/rust#22496

[mdinger]

To be precise, is and us are no longer valid suffixes on rust numbers. The new suffixes are isize and usize.

[nightwing]

e8423ae should fix this issue

[mdinger]

That looks so much better. That one regex was so messy before.

[Grazfather]

It does look better, and appears to work for me, but it looks like it breaks float suffixes.

[Grazfather]

This is what it looks like on master.

[mdinger]

Maybe:

- /(?:[0-9][0-9_]*\.)(?:[0-9][0-9_]*)(?:[Ee][+-][0-9][0-9_]*)?(?:f32|f64)?\b/
+ /(?:[0-9][0-9_]*)(?:\.[0-9][0-9_]*)(?:[Ee][+-][0-9][0-9_]*)?(?:f32|f64)?\b/

[nightwing]

Added that and also added ? for (?:\.[0-9][0-9_]*), to highlight numbers like 1e+5
https://github.com/ajaxorg/ace/pull/2770/files#diff-6e75d9c1f4e549bcdc128975b582889cR132

[mdinger]

Yeah, I meant to put that in but forgot.

[nightwing]

Ok, considering that as a review +1 for #2770
Thanks.

[Grazfather]

Quick work. Thanks a lot.