A small extension to ocaml 3-02 called coca-ml and using camlp4 to allow 'down cast' of objects between classes in relations of inheritance and sub-typing.
By Emmanuel Chailloux
Micmatch is a syntax extension of the pattern matching constructs of OCaml for matching and extracting substrings with regular expressions. Micmatch tries to stay as close as possible to the spirit of OCaml.Named regular expressions can be defined. They use the syntax of ocamllex with some additions.
By Martin Jambon
An Internet Content Adaptation Protocol filter monitor ; contains pa_trace.ml, a Camlp4 preprocessor useful for adding tracing facilities.
By Basile Starynkevitch
This interface builder uses a syntax extension to generate OCaml code from an XML-like description of a graphical interface, and reports error in the source XML (see file pa_zog.ml).
By Maxence Guesdon, Daniel de Rauglaudre, Fabrice Le Fessant