baffledCitrus

A cross-platform (Linux/OSX/Windows/etc) lexer/parser generator replacement for lex/flex and yacc/bison

• Lemon: an LALR(1) parser generator from SQLite
• re2c: a tool for writing very fast and very flexible scanners
• Perplex: a simple tool to simplify the creation of scanners using re2c

This combination is used in BRL-CAD as a replacement for flex and bison.

Compiling

Requires: CMake >= 2.8, C/C++ compiler (MSVC, GCC, Clang, etc)

On Windows, use CMake-GUI. On other OSes, use CMake-GUI or type the following:

cd baffledCitrus
mkdir build
cd build
cmake ..
make

Other Code Generators

• Comparison of parser generators on Wikipedia
• Ragel State Machine Compiler
• flex
• bison

Syntax checkers

• bnfparser2 BNF/EBNF/ABNF syntax verification utility
• BNF Syntax Checker