Re: Flex and bison howto for C++ users

[Akim Demaille]

 oleg> Hello all,

Hi Oleg,

 oleg> a while ago after googling and bugging people on this list I
 oleg> figured out how to get bison and a C++ compiler talk to each
 oleg> other. It turns out that there is no documentation that covers
 oleg> this process, and it is asked repeatedly on this list. So, I
 oleg> have written a howto on this.

This is an excellent thing.  I'm trying to clean up the C++ skeleton,
but quite a lot remain to be done.  The documentation was highly
needed, and your work will be a fine source of inspiration!

 oleg> Please find attached howto.html that describes the following:
 oleg> -- creating a small grammar
 oleg> -- creating a simple scanner
 oleg> -- declaring a common class with attributes that are c++ objects
 oleg> -- getting bison to use the new lalr c++ skeleton
 oleg> -- getting flex to use objects allocated by bison
 oleg> -- compiling all this stuff with cygwin under windows

Have you experimented Flex C++ scanners?  Someone reported nasty
performances years ago, but it might have changed.