Lapg is the combined lexical analyzer and parser generator, which converts a description for a context-free LALR grammar into source file to parse the grammar. Generates code for Java, Javascript, C, C++ and C#.
JetPAG is a recursive-descent parser and lexical analyzer generator focused on high efficiency, usability and readability of generated code. JetPAG generates fast recognizers and aids developers with useful tools for simplifying input interpretation.