const-regex

Proc macro to match regexes in const fns. The regex must be a string literal, but the bytes matched can be any value.

The macro expects an &[u8], but you can easily use str::as_bytes.

```rust const fn thiscrate(bytes: &[u8]) -> bool { constregex::match_regex!("^(meta-)*regex matching", bytes) }

assert!(thiscrate(b"meta-meta-regex matching")); assert!(!thiscrate(b"a good idea")); ```