Determine if a char is a valid identifier for a parser and/or lexer according to Unicode Standard Annex #31 rules.

This is a clone of unicode-xid.

use unicode_id::UnicodeID;
fn main() {
    let ch = 'a';
    println!("Is {} a valid start of an identifier? {}", ch, UnicodeID::is_id_start(ch));
}

unicode-id supports a no_std feature. This eliminates dependence on std, and instead uses equivalent functions from core.

• Update to Unicode 16.0.0

• Update to Unicode 15.1.0

• Update to Unicode 15.0.0

• Fix clippy warnings

• Fork repo for unicode-id
• Update to Unicode 14.0.0

• Add an ASCII fast-path

• Update to Unicode 13.0.0
• Speed up lookup

• Update to Unicode 12.1.0.

• Initial release.