oniguruma を Homebrew, apk, dnf, Nix, pacman, zypper 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

• onig-config

プロジェクトの歴史

The upstream README describes Oniguruma as a modern and flexible regular-expression library that combines features traditionally found in different regex implementations. A key design point is that character encoding can be specified per regular-expression object, with supported encodings ranging from ASCII and UTF families to EUC variants, Shift_JIS, Big5, GB18030, KOI8-R, CP1251, and ISO-8859 variants.

The project continued through 6.x releases with Unicode and API work: 6.9.6 added compatibility and safety-related options, 6.9.7 added callback and Python syntax APIs, 6.9.8 updated to Unicode 14.0.0 and fixed OSS-Fuzz findings, 6.9.9 updated to Unicode 15.1.0, and 6.9.10 updated to Unicode 16.0 and added the (*SKIP) operator. The README states that the project ended on April 24, 2025.

採用の歴史

Oniguruma's adoption came from being useful where byte-oriented regex engines were not enough. PHP's mbstring installation manual says Oniguruma is necessary for multibyte regular-expression functions and that PHP 7.4.0 switched to pkg-config detection of the external libonig library after earlier bundled use.

The editor ecosystem also standardized on Oniguruma syntax. Microsoft's vscode-textmate README says TextMate grammars use the Oniguruma dialect and that the library is used in VS Code; the VS Code extension API guide likewise says TextMate grammars rely on Oniguruma regular expressions.

使われ方

C developers include oniguruma.h, link with libonig, and choose among the native Oniguruma API plus GNU and POSIX-compatible APIs. The upstream README includes sample programs for callouts, encodings, named groups, POSIX usage, scanning, syntax tests, and user-defined Unicode properties.

Downstream users often never call libonig directly. PHP developers touch it through mb_ereg and related mbstring regex functions, while editor-extension authors touch its syntax through TextMate grammar patterns consumed by VS Code and compatible tooling.

パッケージ好きにとっての重要性

Oniguruma is a classic package-graph library: small from a user-interface perspective, but large in dependency impact. It sits under PHP multibyte regex, TextMate grammar tokenization, VS Code-related tooling, and multiple language or editor stacks, so packaging updates can ripple into builds, syntax highlighting, and security maintenance.

タイムライン

• PHP 7.4.0: PHP's mbstring build switched to pkg-config detection for libonig, while the manual notes prior bundled use.
• 2020-2022: 6.9.6 through 6.9.8 added API work, Unicode 14.0.0 support, and fixes from OSS-Fuzz and Coverity.
• 2024-2025: 6.9.9 and 6.9.10 updated Unicode support to 15.1.0 and 16.0.
• April 24, 2025: the upstream README states that the Oniguruma project ended.

Related projects

• Oniguruma is the upstream ancestor of Onigmo. It is also tied to PHP mbstring, TextMate grammars, VS Code's TextMate tokenizer stack, and package names such as libonig on Linux distributions.

ソース

• https://code.visualstudio.com/api/language-extensions/syntax-highlight-guide
• https://formulae.brew.sh/formula/oniguruma
• https://github.com/kkos/oniguruma
• https://github.com/microsoft/vscode-textmate
• https://www.php.net/manual/en/mbstring.installation.php