...Koopa is a parser generator, made for COBOL. It can handle source files in isolation (no preprocessing required) and doesn't mind the presence of CICS/SQL fragments. The grammar is easily extensible in a way which minimizes the impact on the overall code.
This is a set of regular grammar inference libraries. It contains tools to visualise the resulting grammar as a finite state machine and to actively contribute to the inference process.
The repository has now moved to https://github.com/kirilluk/statechum
An other library for the common problem of parsing arbitrary text data.
A small, easy-to-use Java library
LR parser without lookahead limitation.
Semantic action defined in class not in grammar definition file.