Determine if a char is a valid identifier for a parser and/or lexer according to
Unicode Standard Annex #31 rules.
extern crate unicode_xid;
use unicode_xid::UnicodeXID;
fn main() {
let ch = 'a';
println!("Is {} a valid start of an identifier? {}", ch, UnicodeXID::is_xid_start(ch));
}unicode-xid supports a no_std feature. This eliminates dependence
on std, and instead uses equivalent functions from core.
You can use this package in your project by adding the following
to your Cargo.toml:
[dependencies]
unicode-xid = "0.1.0"- Update to Unicode 12.1.0.
- Initial release.