lua-pattern

Parser for Lua patterns and conversion to regular expressions.

This crate provides a basic parser for Lua patterns, and, with the to-regex feature enabled, conversion to standard regular expressions as usable by the regex or fancy-regex crate.

lib.rs:

Usage

• Lua patterns can be parsed to a tree with parse.
• Parsed patterns can be converted to regex strings with try_to_regex.

For example:

use lua_pattern::{Class, PatternObject};

let tree = lua_pattern::parse("%l").unwrap();
assert_eq!(tree, [PatternObject::Class(Class::Lowercase)]);
#[cfg(feature = "to-regex")]
assert_eq!(
    lua_pattern::try_to_regex(&tree, false, false).unwrap(),
    "[a-z]"
);