grex を Homebrew, MacPorts, Nix, pacman, zypper, scoop でインストール

プロジェクトリンク

• ホームページ
• リポジトリ
• 上流ドキュメント
• パッケージマネージャページ

コマンドとエイリアス

• grex

プロジェクトの歴史

The README states that grex began as a Rust port of Devon Govett's JavaScript regexgen project after regexgen development had apparently ceased. Peter M. Stahl's project kept the regex-generation idea but used Rust's strengths for command-line tooling and expanded the feature set beyond the original port.

Official GitHub releases show public versioned releases starting with v0.1.0 on 2019-10-06, followed by v1.0.0 on 2020-02-02. Later releases added and refined library, CLI, Unicode, packaging, and binding surfaces, while the README presents grex as both a command-line executable and a Rust crate with Python bindings.

採用の歴史

grex reached package-manager users through the Rust ecosystem first, with crates.io as the upstream registry path, and through binary/package managers such as Homebrew, MacPorts, Scoop, Chocolatey, Huber, Nix, Arch, and openSUSE as reflected by the README and batch package facts. Its packaging surface is broad because it is a single CLI binary but also a reusable library.

使われ方

Users pass examples directly on the command line, from a file, or through a Unix pipeline. By default grex generates a specific expression that matches the supplied test cases; flags can generalize output by converting digits, whitespace, word characters, repeated substrings, anchors, groups, escaping, case sensitivity, verbosity, and colorized display.

The README cautions that generated expressions still need human understanding. That caveat is part of the tool's identity: grex is best used to bootstrap or audit a regex, not to remove the need to understand the target language and engine.

パッケージ好きにとっての重要性

grex is package-nerd significant because it packages an algorithmic helper for one of the most common developer annoyances: turning examples into a regular expression. It is also a Rust CLI case study, distributed as source through cargo and as prebuilt binaries or package-manager formulas for users who do not want a Rust toolchain.

Its relationship to regexgen also makes it a small example of ecosystem migration: a JavaScript idea revived as a Rust CLI and library, then exposed through additional language bindings.

タイムライン

• 2019: v0.1.0 published in the official GitHub release feed.
• 2020: v1.0.0 published after several 0.x releases.
• 2021: v1.2.0 and v1.3.0 releases continued the 1.x line.
• 2022: v1.4.0 and v1.4.1 releases appeared.
• 2024: v1.4.5 published in the official GitHub release feed.
• 2025: v1.4.6 published with release assets for several operating-system and CPU targets.

Related projects

• regexgen is the JavaScript project that grex began by porting.
• Rust's regex crate is a stated compatibility target for generated expressions.
• grex-js is the related JavaScript/WebAssembly demo and library surface linked from the repository.
• crates.io, PyPI, Homebrew, MacPorts, Scoop, Chocolatey, and Huber are distribution surfaces named by upstream or batch package facts.

ソース

• https://api.github.com/repos/pemistahl/grex/releases?per_page=100
• https://crates.io/crates/grex
• https://github.com/pemistahl/grex
• https://raw.githubusercontent.com/pemistahl/grex/main/README.md