[comp.org.decus] decus lex

forsyth@minster.UUCP (05/12/87)

It is not AT&T derived.
That is quite obvious once you look at the source!
Someone asked for a copy for inclusion in the DECUS distribution
about 7 years ago.  They changed it quite a bit to have it work under
RSX-11 with Dave Conroy's C compiler.  The input conventions
were based on those in the first edition of the Aho&Ullmann Dragon Book:
	%T Principles of Compiler Design
	%A A. V. Aho
	%A J. D. Ullman
	%I Addison-Wesley
	%C Reading, Mass.
	%D 1977
	%K AddWesley
and they are a bit strange, especially by comparison with 7th Edition lex.
(The newer dragon book uses the conventions of BTL lex.)
Also, it was a 6th edition program and had the usual assortment of
pointer mismatches.  Recently I put all the types right, and
changed the input syntax slightly, but I haven't done any real
work on it.  Perhaps the new fast lex `flex'
(advertised in comp.unix.wizards) might be a better choice.