macOS
Homebrew已验证 · 100%
brew install jflexlocal Homebrew formula metadata
MacPorts已验证 · 94%
sudo port install jflexMacPorts ports tree · devel/jflex/Portfile · 来源: api.github.com
安装
其他安装命令
Linux
Fedora dnf已验证 · 92%
sudo dnf install jflexFedora Rawhide package metadata · jflex · 来源: dl.fedoraproject.org
Nix已验证 · 92%
nix profile install nixpkgs#jflexnixpkgs package indexes · pkgs/by-name/jf/jflex/package.nix · 来源: api.github.com
openSUSE zypper已验证 · 92%
sudo zypper install jflexopenSUSE Tumbleweed package metadata · jflex · 来源: download.opensuse.org
概览
软件包摘要
Lexical analyzer generator for Java, written in Java
历史
项目历史与用法
JFlex is a lexical analyzer generator for Java, written in Java. The official manual describes it as a rewrite of JLex, with no shared code with Vern Paxson's C/C++ flex, and the README describes generated lexers as deterministic finite automata that form the first front-end step in many compilers.
项目历史
JFlex 1.0 was publicly released in May 1998. The project history says it was built with Sun's JDK 1.1, JFlex itself through bootstrapping, and the CUP parser generator.
The project accumulated the usual compiler-tooling milestones over time: SourceForge-era releases, Ant integration, CUP and BYacc/J interoperability, Unicode work, Maven build changes, and a license change from GPL to BSD in the 1.5.0 release. JFlex 1.6.1 moved development, wiki, and issue tracking to GitHub in 2015.
The 1.9.x line continued the post-GitHub release history, with the manual identifying version 1.9.1 as a 2023 manual and release pages tying JFlex and the JFlex Maven plugin to Maven Central-oriented workflows.
采用历史
JFlex's adoption comes from the durable place of lex-style scanner generators in compiler courses, programming language tools, and Java build systems. The manual includes sections for porting from JLex and lex/flex and for working with CUP, CUP2, BYacc/J, and Jay, which documents its role in the Java parser-generator ecosystem.
Package metadata in the input shows JFlex packaged by Homebrew, Debian, Fedora, MacPorts, Nix, Ubuntu, and related distributions. That breadth reflects a tool old enough to be infrastructure: users may encounter it as a command-line utility, a Maven plugin, or a build dependency hidden inside language tooling.
使用方式
A JFlex user writes a `.flex` lexical specification containing regular expressions and actions. JFlex generates Java source for a scanner that reads input, matches the regular expressions, and emits actions or tokens; projects commonly wire the generated scanner into CUP-family parsers or build tools such as Maven, Ant, and Bazel.
为什么软件包爱好者会关心
JFlex is package-nerd significant because it preserves a classic Unix compiler-tool idea in the Java ecosystem. It is simultaneously a small CLI, a Maven-era build component, and a compatibility bridge for JLex and lex/flex users who need generated Java scanners with Unicode and deterministic-automata performance.
时间线
- 1998: JFlex 1.0 public release.
- 2000: JFlex 1.3 release moved part of the project to SourceForge.
- 2014: JFlex 1.5.0 changed license from GPL to BSD and changed the build from Ant to Maven.
- 2014: JFlex 1.6.0 added Unicode 7.0 support.
- 2015: JFlex 1.6.1 moved development, wiki, and issue tracking to GitHub.
- 2023: JFlex 1.9.1 released.
Related projects
- JFlex is directly related to JLex, lex, flex, CUP, CUP2, BYacc/J, Jay, Maven, Ant, and Bazel. Its repository also includes JFlex Maven plugin and Unicode plugin components.
来源
安全态势
风险级别：绿色
narrow executable package without higher-risk signals.
风险分类器
绿色 风险 · 低 置信度 · appliance
原因
- narrow executable package without higher-risk signals
信号
- metadata:no-higher-risk-signals
安装行为
- 未记录 Homebrew bottle 元数据。
建议审查
在无人值守的代理使用前，请检查该工具是否读取明文凭据、写入远程状态、发布制品或调用插件。
可执行文件
已安装的可执行文件
| 命令 | 类型 | 暴露范围 | 备注 |
|---|---|---|---|
jflex | 可执行文件 | 已索引可执行文件 | 从本地可执行文件索引发现。 |
新鲜度
版本和新鲜度
这些信号区分页生成时间、软件包管理器活动和上游发布比较。只有存在证据 URL 和可比较版本时，才会提示版本落后。
页面生成时间2026-08-03
管理器版本1.9.1
管理器更新时间
本地数据未知
上游不可用
检测到的最新版本未检测到
- OK没有生成新鲜度警告。
安装元数据
软件包元数据
| 软件包键 | brew:jflex |
|---|---|
| 版本 | 1.9.1 |
| 软件包管理器 | Homebrew |
| 主页 | https://jflex.de/ |
| 仓库 | https://github.com/jflex-de/jflex |
| Bottle | 未记录 |
| 服务 | 未声明 |
源数据库匹配
其他软件包管理器记录
匹配项来自外部软件包管理器索引，并与本地 Automic Vault 软件包链接分开显示。
Debian apt95%
jflex 1.7.0-3
lexical analyzer generator for Java
sudo apt install jflex- Section: java
- Architecture: all
- 3 依赖
- normalized package name match
- 匹配方式：Jflex
Nix95%
jflex
nix profile install nixpkgs#jflex- normalized package name match
- 匹配方式：Jflex
Ubuntu apt95%
jflex 1.7.0-3
lexical analyzer generator for Java
sudo apt install jflex- Section: universe/devel
- Architecture: all
- 3 依赖
- normalized package name match
- 匹配方式：Jflex
dnf95%
jflex 1.7.0-51.fc45
Fast Scanner Generator
sudo dnf install jflex- License: BSD-3-Clause
- Category: Unspecified
- Architecture: noarch
- Source Package: jflex
- 5 依赖
- 2 提供
- normalized package name match
- 匹配方式：Jflex
zypper95%
cup-maven-plugin 1.9.1-1.6
CUP Maven plugin
sudo zypper install cup-maven-plugin- License: BSD-3-Clause
- Category: Development/Libraries/Java
- Architecture: noarch
- Source Package: jflex
- 3 依赖
- 2 提供
- normalized package name match
- 匹配方式：Jflex
zypper95%
jflex 1.9.1-1.6
Lexical Analyzer Generator for Java
sudo zypper install jflex- License: BSD-3-Clause
- Category: Development/Libraries/Java
- Architecture: noarch
- Source Package: jflex
- 6 依赖
- 2 提供
- normalized package name match
- 匹配方式：Jflex
zypper95%
jflex-javadoc 1.9.1-1.6
API documentation for jflex
sudo zypper install jflex-javadoc- License: BSD-3-Clause
- Category: Development/Libraries/Java
- Architecture: noarch
- Source Package: jflex
- 1 依赖
- 2 提供
- normalized package name match
- 匹配方式：Jflex
zypper95%
jflex-maven-plugin 1.9.1-1.6
JFlex Maven Plugin
sudo zypper install jflex-maven-plugin- License: BSD-3-Clause
- Category: Development/Libraries/Java
- Architecture: noarch
- Source Package: jflex
- 3 依赖
- 2 提供
- normalized package name match
- 匹配方式：Jflex
MacPorts95%
jflex
sudo port install jflex- normalized package name match
- 匹配方式：Jflex
来源线索
由仓库数据生成
此页面由 av-web 从 scripts/generate-pkg-sqlite.py 生成的私有软件包 SQLite 工件提供。
Combined YAML source
View the package source record on GitHub.
使用的来源
- Geiger risk classifier
- cross-ecosystem install command graph
- curated package history
- external package-manager database matches
- pkg.so package database
- pkgdb category and tag curation