boa-unicode

boa-unicode defines the trait to provide methods for querying properties or classes for Unicode identifiers. These properties are used to determine if a code point (char) is valid for being the start/part of an identifier in lexer and parser.

Current version: Unicode 15.0.0

Development

The Unicode character tables used to query properties are generated by build_tables.js. This script depends on Node.js and rustfmt. You can run the script with:

$ node build_tables.js

or with npm:

$ npm run build-tables

The configurations are defined as constants in the script. Please check the comments in build_tables.js for more information.

More Info

• Unicode® Standard Annex #31 - UNICODE IDENTIFIER AND PATTERN SYNTAX
• Unicode® Standard Annex #44 - UNICODE CHARACTER DATABASE

lib.rs:

This library implements the extension to query if a char belongs to a particular unicode identifier property. Version: Unicode 15.0.0

More information:

• Unicode® Standard Annex #31