ogex

A regex engine with unified syntax for named groups and backreferences.

Features

• Unified Syntax: (name:pattern) for named groups, \g{name} for backreferences
• Relative Backreferences: \g{-1} references the last numbered group
• Entire Match in Replacements: \G for the entire match
• Full Regex Support: Quantifiers, alternation, character classes, anchors, groups
• Multiple Targets: Native Rust, WebAssembly, C FFI

Installation

Add to your Cargo.toml:

[dependencies]
ogex = "0.1"

Usage

use ogex::Regex;

// Basic matching
let regex = Regex::new(r"hello (\w+)").unwrap();
let m = regex.find("hello world").unwrap();
assert_eq!(m.group(1), Some("world"));

// Named groups with unified syntax
let regex = Regex::new(r"(name:\w+) is \g{name}").unwrap();
let m = regex.find("John is John").unwrap();
assert_eq!(m.named_group("name"), Some("John"));

// Relative backreferences
let regex = Regex::new(r"(a)(b)\g{-1}").unwrap();
assert!(regex.is_match("abb"));

// Replacements with entire match
use ogex::Replacement;
let repl = Replacement::parse(r"[\G]").unwrap();
let result = repl.apply("hello", &[]);
assert_eq!(result, "[hello]");

Syntax

| Feature | Ogex | Traditional | |---------|------|-------------| | Named group | (name:abc) | (?<name>abc) | | Named backref | \g{name} | \k<name> | | Numbered backref | \g{1} | \1 | | Relative backref | \g{-1} | Not supported | | Entire match (replacement) | \G | $& or \0 |

Feature Flags

• wasm - Enable WebAssembly bindings

License

MPL-2.0