Piglet is a tool for parsing and lexing text for the .NET framework. The purpose of Piglet is to provide an easy-to-use tool for parsing text which can be easily included in any .NET project as a single assembly. In contrast to most parser generators, Piglet provides a fluent interface which enables you to express your grammar in a syntax which is accessible for users with no prior experience of parser generators. Piglet generates efficient, type safe, and reentrant LALR(1) parsers at runtime, which saves you from having a pre-compile step to generate your parsing tables. It also includes a lexical scanner generator which can be used independently of the parser generator.
The Lean Mean C++ Option Parser handles program arguments (argc, argv). It supports the short and long option formats of getopt(), getopt_long(), and getopt_long_only(), but has a more convenient interface. It is a freestanding, header-only library with no dependencies, not even libc or STL. It comes with a usage message formatter which supports column alignment and line wrapping, making it ideal for localized messages with different lengths.
UniCC, (Universal Compiler-Compiler) is a powerful LALR(1) parser generator and language development system for computer professionals. It serves as an all-round design and build tool assisting compiler writers in any parsing-related task, including production quality compiler construction and the implementation of domain specific languages. It unifies an integrated generator for lexical analyzers and a powerful LALR(1) parser generator into one software solution. The programming interface is a rich, extendable, and innovative BNF-based grammar definition language for expressing context-free grammars.
WTMParse is a script originally intended for use in forensic examinations which parses WTMP files from Unix-like operating systems and generates a CSS-styled HTML report containing the login terminal, username, log start date, and login time/date in a table. It's good for postmortem forensic examinations or as a way of getting "last"-like information when you don't have the ability to boot the machine in question but can grab the wtmp.