mgen: match automatons and C generation

The algorithm to generate matchers
took a long time to be discovered
and refined to its present version.
The rest of mgen is mostly boring
engineering.

Extensive fuzzing ensures that the
two core components of mgen (tables
and matchers generation) are correct
on specific problem instances.

tools/mgen/Makefile

@@ -0,0 +1,16 @@
+BIN = mgen
+SRC = \
+	match.ml \
+	fuzz.ml \
+	cgen.ml \
+	sexp.ml \
+	test.ml \
+	main.ml
+
+$(BIN): $(SRC)
+	ocamlopt -o $(BIN) -g str.cmxa $(SRC)
+
+clean:
+	rm -f *.cm? *.o $(BIN)
+
+.PHONY: clean