Bug: 139060369

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  3. 82d5e36 Migrate to cargo_embargo. am: 57f7c032aa am: 8193a2bb29 by Andrew Walbran · 5 months ago
  4. 9f4a0e1 Migrate to cargo_embargo. am: 57f7c032aa am: 8783035a4f by Andrew Walbran · 5 months ago
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unicode-xid

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

Build Status

Documentation

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));
}

features

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

changelog

0.2.4

  • Update to Unicode 15.0.0
  • Replace const tables with static tables.

0.2.3

  • Update to Unicode 14.0.0

0.2.2

  • Add an ASCII fast-path

0.2.1

  • Update to Unicode 13.0.0
  • Speed up lookup

0.2.0

  • Update to Unicode 12.1.0.

0.1.0

  • Initial release.