Here are the authors and maintainers of the different parts of coccinelle:

* Julia Lawall <julia@diku.dk>

- parsing_cocci/ (parsing SmPL, isomorphism handling)
- engine/ (ast_cocci to ctl, sgrep)
- ctl/ (symbolic model checker)
- tools/ 
- standard.iso

* Yoann Padioleau <yoann.padioleau@gmail.com>

- parsing_c/ (parsing C, unparsing C, type checking, control flow, C diff)
- engine/ (pattern matching and transforming, unparsing, ctl integration)
- main.ml, cocci.ml (driver), testing.ml
- configure, txt files, Makefiles 
- globals/
- extra/, tools/, scripts/
- commons/ (utility functions, e.g. for logging, profiling, regression testing)
- editors/emacs/cocci.el
- standard.h


* Rene Rydhof Hansen <rrhansen@diku.dk>

- Original version of the model checker in ctl/
- editors/emacs/cocci-ediff.el
- scripts/extractor.awk

* Henrik stuart <henrik@hstuart.dk>

- python/ (python SmPL extension and a coccinelle GUI)

* Nicolas Palix <npalix@diku.dk>

- ocaml/ (OCaml SmPL extension)
- scripts/spatch.bash_completion

* All

- tests/ demos/