Hello all,

In some cases, a GNU bison input grammar might be a too big file, and it would be convenient to have some include directive (à la GNU cpp) in it.


Spliting a large grammar file into several pieces is convenient, for software engineering reasons (exactly for the same reason, C and C++ have #include....)


My suggestion is to add some new feature to the GNU bison syntax:

If an input line starts with %+ followed by a file path, the content of that file is included at that place.

I would even like to include a popen-ed output, if explicitly allowed by a --popen-allowed program option. Then %| would popen the command and include it.

Is that suggestion interesting someone?

(it would be very useful in the RefPerSys open source -GPLv3+ licensed- inference engine project on https://github.com/RefPerSys/RefPerSys/ ....)


Regards

--
Basile Starynkevitch                  <bas...@starynkevitch.net>
(only mine opinions / les opinions sont miennes uniquement)
92340 Bourg-la-Reine, France
web page: starynkevitch.net/Basile/


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