makenowjust / naraku

What is naraku?

Naraku is a ground-up Ruby regex engine written in C, positioned as the next successor to Oniguruma and Onigmo. It handles pattern parsing, multi-encoding support (UTF-8, Shift_JIS, ASCII), and Unicode properties like scripts and case folding, with mruby integration for embedded use. Ruby devs get a modular alternative for regex processing, complete with benchmarks to compare against stock Regexp.

Why is it gaining traction?

Unlike Ruby's built-in engine, Naraku emphasizes Ruby-specific features like extended syntax (lookbehinds, conditionals, grapheme clusters) and prototypes a faster VM via Ruby-to-C paths. Its Inuyasha-inspired name (naraku inuyasha) nods to Japanese roots, fitting for robust Unicode handling that outpaces alternatives in multi-byte scenarios. Early adopters dig the mruby gem for lightweight regex in constrained environments, plus tools for profiling DFA performance.

Who should use this?

Ruby backend devs parsing complex logs or user input with heavy Unicode (e.g., Japanese text via Shift_JIS). mruby users in IoT/embedded apps needing custom regex without full CRuby overhead. Core contributors to regex-heavy gems like those for next.js-inspired GitHub projects (github next js example) evaluating engine swaps.

Verdict

Promising prototype for next Ruby regex (next ruby) needs—parser and encodings work, but VM is WIP with only 13 stars and 1.0% credibility score signaling early immaturity. Track it if you're prototyping regex alternatives; skip for production until benchmarks solidify and tests expand.

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