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Note: you'll need OCaml 3.10.x to compile `patterns'.
Typing `make' in this directory should build object files traverse.cmo
and patterns.cmo, which form a framework for writing extensions to
pattern-matching using Camlp4. Typing `make' in the applications
directory then builds a number of extensions which use the framework
to extend OCaml pattern matching.
For example, once you've built the framework and the applications, you
can use the pa_lazy extension in applications/lazy to extend OCaml
with "lazy patterns" (i.e. pattern matching against lazy values). If
you have a source file "source.ml" which uses lazy patterns then you
can compile it as follows:
ocamlc -pp 'camlp4of traverse.cmo patterns.cmo pa_lazy.cmo' source.ml
or, to see the output,
camlp4of traverse.cmo patterns.cmo pa_lazy.cmo source.ml
If you'd like to check that everything is working, you can run
make test
in the applications directory.
Documentation for using `patterns' is available at
http://code.google.com/p/ocaml-patterns/
Comments are very welcome.
Jeremy Yallop
jeremy.yallop@ed.ac.uk
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