Nicolas Joly wrote: > Bob Proulx wrote: > > What is the best practice for organizing a program that includes > > multiple lex generated scanners? > > I encountered the same problem ... and made the following constructs > that did the trick (at least for me). > > AUTOMAKE_OPTIONS = subdir-objects > > AM_YFLAGS = -d -p `basename $* | sed 's,y$$,,'` > AM_LFLAGS = -s -P`basename $* | sed 's,l$$,,'` -olex.yy.c
That is very clever. I like it. The -P option solves the renames completely but flex renames the output file but the -o solves that problem. Very nice! In my case I might need to generate a mapping from filename to symbol name (instead of your case using sed) because the legacy code I am dealing with does not use the filenames for the symbol names. In my case the filenames are long and the symbols are short. But I can deal with that reasonably enough. So for the mail archive my case might be: AM_LFLAGS = -s -P`basename $* | sed 's|ascscan|asc_|;s|gdsscan|gds_|'` -olex.yy.c I expect that mapping to be very filename and symbol name specific. > Hope this helps, Very much so. I think there might be room for improvement in some way to make this easier but I am not sure what to suggest. Thanks! Bob
