# Installer expat avec Homebrew, apk, apt, dnf, MacPorts, Nix, pacman, zypper Consultez les chemins d'installation, exécutables, métadonnées et notes de sécurité de expat pour les workflows d'agents IA. ## installation ```sh sudo av install brew:expat ``` Commandes d'installation supplémentaires: ### macOS - Homebrew (100%): ```sh brew install expat ``` Preuve: local Homebrew formula metadata - MacPorts (94%): ```sh sudo port install expat ``` Preuve: MacPorts ports tree: textproc/expat/Portfile from https://api.github.com/repos/macports/macports-ports/git/trees/master?recursive=1 ### Linux - apk (92%): ```sh sudo apk add expat ``` Preuve: Alpine Linux edge package indexes: expat from https://dl-cdn.alpinelinux.org/alpine/edge/main/x86_64/APKINDEX.tar.gz - Debian apt (92%): ```sh sudo apt install expat ``` Preuve: Debian stable package indexes: expat from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz - dnf (92%): ```sh sudo dnf install expat ``` Preuve: Fedora Rawhide package metadata: expat from https://dl.fedoraproject.org/pub/fedora/linux/development/rawhide/Everything/x86_64/os/repodata/07190dc5ae9f35ae73866675fed6d95fe6e8d9fe22c9d7cdf85862cb2ed24a4c-primary.xml.zst - Nix (92%): ```sh nix profile install nixpkgs#expat ``` Preuve: nixpkgs package indexes: pkgs/by-name/ex/expat/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1 - pacman (92%): ```sh sudo pacman -S expat ``` Preuve: Arch Linux sync databases: expat from https://geo.mirror.pkgbuild.com/core/os/x86_64/core.db.tar.gz - zypper (92%): ```sh sudo zypper install expat ``` Preuve: openSUSE Tumbleweed package metadata: expat from https://download.opensuse.org/tumbleweed/repo/oss/repodata/50b07339cb64c8ed4091bdbabddadc1ff5737b090e478818a195b40d8a3292861a879139b4a3987c31109699fde9fbf4a716367ddf4eef77da75f96e3193d6ed-primary.xml.zst ## Faits du paquet - **Clé du paquet:** brew:expat - **Gestionnaire de paquets:** Homebrew - **Version:** 2.8.2 - **Résumé source:** XML 1.0 parser - **Page d'accueil:** - **Dépôt:** - **Dernière mise à jour:** 2026-06-25T21:42:09Z - **Généré:** 2026-08-03T19:37:03+00:00 ## exécutables - xmlwf (alias) ## Comportement d'installation - Bouteille: non disponible ## Version et fraîcheur - page générée: 2026-08-03 - version du gestionnaire: 2.8.2 ## Historique du projet et usages Expat is a fast streaming XML parser library written in C, with xmlwf as its command-line well-formedness checker. It is package-manager-famous because XML parsing became infrastructure, and Expat is small, MIT-licensed, embeddable, and widely shipped. ### Historique du projet The official repository describes Expat as a C99 library for parsing XML 1.0, started by James Clark in 1997. Its model is event-oriented: users register handlers before parsing, and those handlers are called as document structures are discovered. The project site frames Expat around streaming rather than building a full in-memory document tree. That makes it useful for files too large to fit in memory, and for applications where parser performance and flexible callbacks are more important than a high-level DOM interface. ### Historique d'adoption The Expat homepage states that numerous applications, libraries, and hardware use Expat, that bindings and third-party wrappers exist, and that Expat is packaged everywhere. That breadth is the key adoption story: many users never invoke xmlwf directly, but they depend on Expat through another program or language runtime. The repository README documents common build-system integration, including CMake find_package usage. That is a sign of mature library adoption: Expat is not just an executable in package managers, but a dependency with headers, link targets, and ABI expectations. ### Modes d'utilisation Developers use libexpat when they want a C XML parser that calls application-defined handlers for starts, ends, character data, and related XML structures. The included xmlwf executable is used to check whether XML input is well formed. Because XML parsers sit at input boundaries, Expat's package history is often security-driven. The official GitHub issue tracker includes release coordination that references downstream updates in CPython, Gentoo, Spack, Homebrew, NixOS, MSYS2, and other packaging ecosystems when CVE fixes land. ### Pourquoi les passionnés de paquets s'y intéressent Expat is a dependency-package archetype: boring when healthy, urgent when vulnerable. It is small enough to be embedded or vendored, but important enough that a security update can ripple through Python, Linux distributions, language package sets, and embedded builds. The package also demonstrates the difference between library identity and command identity. Homebrew exposes xmlwf as the executable, while the real package value is libexpat and its headers. ### Chronologie - 1997: James Clark started Expat. - 2.4.x: Security releases triggered broad downstream package updates. - 2025: Expat 2.7.2 release coordination referenced Homebrew, CPython, NixOS, MSYS2, Spack, Gentoo, and other downstreams. - 2026: Expat 2.8.x release coordination continued around security fixes and downstream updates. ### Related projects - CPython is a major downstream because Python includes pyexpat bindings and coordinates bundled Expat updates. - CMake's FindEXPAT module is an important integration path for C and C++ projects. - Other XML parsers are related by role, but Expat's official documentation emphasizes its streaming C API. ### Sources - - - - - - ## Notes de sécurité Aucun manifest local de gestion des secrets correspondant n'a été trouvé pour expat. Les métadonnées de paquet Nucleus restent publiées ici afin que la couverture future dispose d'une URL stable. ## Autres enregistrements de gestionnaires de paquets - Debian apt - expat - 2.7.1-2: normalized package name match | Debian stable package indexes: expat from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz | XML parsing C library - example application | https://libexpat.github.io/ - Debian apt - libexpat1 - 2.7.1-2: normalized package name match | Debian stable package indexes: libexpat1 from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz | XML parsing C library - runtime library | https://libexpat.github.io/ - Debian apt - libexpat1-dev - 2.7.1-2: normalized package name match | Debian stable package indexes: libexpat1-dev from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz | XML parsing C library - development kit | https://libexpat.github.io/ - Nix - expat: normalized package name match | nixpkgs package indexes: pkgs/by-name/ex/expat/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1 - Ubuntu apt - expat - 2.6.1-2build1: normalized package name match | Ubuntu 24.04 LTS package indexes: expat from https://archive.ubuntu.com/ubuntu/dists/noble/universe/binary-amd64/Packages.gz | XML parsing C library - example application | https://libexpat.github.io/ - Ubuntu apt - libexpat1 - 2.6.1-2build1: normalized package name match | Ubuntu 24.04 LTS package indexes: libexpat1 from https://archive.ubuntu.com/ubuntu/dists/noble/main/binary-amd64/Packages.gz | XML parsing C library - runtime library | https://libexpat.github.io/ - Ubuntu apt - libexpat1-dev - 2.6.1-2build1: normalized package name match | Ubuntu 24.04 LTS package indexes: libexpat1-dev from https://archive.ubuntu.com/ubuntu/dists/noble/main/binary-amd64/Packages.gz | XML parsing C library - development kit | https://libexpat.github.io/ - apk - expat - 2.8.2-r0: normalized package name match | Alpine Linux edge package indexes: expat from https://dl-cdn.alpinelinux.org/alpine/edge/main/x86_64/APKINDEX.tar.gz | XML Parser library written in C | https://libexpat.github.io/ - apk - expat-dev - 2.8.2-r0: normalized package name match | Alpine Linux edge package indexes: expat-dev from https://dl-cdn.alpinelinux.org/alpine/edge/main/x86_64/APKINDEX.tar.gz | XML Parser library written in C (development files) | https://libexpat.github.io/ - apk - expat-doc - 2.8.2-r0: normalized package name match | Alpine Linux edge package indexes: expat-doc from https://dl-cdn.alpinelinux.org/alpine/edge/main/x86_64/APKINDEX.tar.gz | XML Parser library written in C (documentation) | https://libexpat.github.io/ - apk - expat-static - 2.8.2-r0: normalized package name match | Alpine Linux edge package indexes: expat-static from https://dl-cdn.alpinelinux.org/alpine/edge/main/x86_64/APKINDEX.tar.gz | XML Parser library written in C (static library) | https://libexpat.github.io/ - apk - libexpat - 2.8.2-r0: normalized package name match | Alpine Linux edge package indexes: libexpat from https://dl-cdn.alpinelinux.org/alpine/edge/main/x86_64/APKINDEX.tar.gz | XML Parser library written in C (libraries) | https://libexpat.github.io/ - dnf - expat - 2.8.1-2.fc45: normalized package name match | Fedora Rawhide package metadata: expat from https://dl.fedoraproject.org/pub/fedora/linux/development/rawhide/Everything/x86_64/os/repodata/07190dc5ae9f35ae73866675fed6d95fe6e8d9fe22c9d7cdf85862cb2ed24a4c-primary.xml.zst | An XML parser library | https://libexpat.github.io/ - dnf - expat-devel - 2.8.1-2.fc45: normalized package name match | Fedora Rawhide package metadata: expat-devel from https://dl.fedoraproject.org/pub/fedora/linux/development/rawhide/Everything/x86_64/os/repodata/07190dc5ae9f35ae73866675fed6d95fe6e8d9fe22c9d7cdf85862cb2ed24a4c-primary.xml.zst | Libraries and header files to develop applications using expat | https://libexpat.github.io/ - dnf - expat-static - 2.8.1-2.fc45: normalized package name match | Fedora Rawhide package metadata: expat-static from https://dl.fedoraproject.org/pub/fedora/linux/development/rawhide/Everything/x86_64/os/repodata/07190dc5ae9f35ae73866675fed6d95fe6e8d9fe22c9d7cdf85862cb2ed24a4c-primary.xml.zst | expat XML parser static library | https://libexpat.github.io/ - pacman - expat - 2.8.2-1: normalized package name match | Arch Linux sync databases: expat from https://geo.mirror.pkgbuild.com/core/os/x86_64/core.db.tar.gz | An XML parser library | https://libexpat.github.io/ ## Combined YAML source View the package source record on GitHub. [combined/expat.yml](https://github.com/mxcl/pkgdb/blob/main/combined/expat.yml) ## Sources - pkg.so package database - Geiger risk classifier - curated package history - pkgdb category and tag curation - external package-manager database matches - cross-ecosystem install command graph