Ogex

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

Overview

Ogex introduces a cleaner, more intuitive syntax for named capturing groups and backreferences:

• Named groups: (name:pattern) instead of (?<name>pattern)
• Backreferences: \g{name} or \g{1} instead of \k<name> or \1
• Works identically in patterns and replacement strings

The engine is written in Rust for performance and provides bindings for multiple languages.

Crates

Crate	Description
ogex	Core regex library (Rust)
ogex-cli	CLI tool
ogex-python	Python bindings

Quick Start

Rust

See ogex/README.md

JavaScript/WASM

import { Regex } from '@ogex/ogex';

const regex = new Regex('(name:hello)');
const match = regex.find('hello world');
console.log(match.text);  // "hello"

Python

import ogex

regex = ogex.Regex(r"(name:\w+) is \g{name}")
match = regex.search("John is John")
print(match.named_group("name"))  # "John"

CLI

# Test a pattern
ogex test "(name:hello)" "hello world"

# Convert syntax
ogex convert "(name:abc)"
# Output: (?<name>abc)

License

• ogex: MPL-2.0
• ogex-cli: MIT