🚀 go-pugleaf

Hello,

I just grabbed Charles Forsyth's version of lex, in the form
of a tar file (glex.tar) that contains a notice indicating
that it (the package) was donated to the FSF. Unfortunately,
the specification of input files is missing _ I know it is
different from either ATT Lex or Berkeley Flex. And the source files
are very old (1986).

So, my questions are :
- is anybody willing to share a recent, working, fully documented
distribution of Forsyth's Lex for U**x systems ?
- alternatively, does anyone know how to get in touch with
Charles Forsyth (e.g, his e-mail address) ?

My goal is to modify an existing scanner generator of the Lex family
(using regular expressions) to make it generate scanners that
are reentrant (no static/global *variables*) and/or can
use multiple DFA tables (that can be switched from outside the
scanning routine). The former feature would allow the scanner to
work without trouble in a multithreaded program ; the latter would be
useful to easily handle syntax-sensitive scanning.

I've looked at Berkeley/Gnu Flex and found it would be a lot of
work to modify it to achieve this goal _ substantially more than with
Forsyth's.

Any comments welcome (hopefully, someone has already done this :-)),

Regards,
-- 
Ronan Melennec              | Service Technique de la Navigation Aerienne
+33 1 60 79 82 40           | Departement 7
melennec@stna7.stna.dgac.fr | 95, rue Henri Rochefort, 91025 EVRY CEDEX, FRANCE