Debugging Bison Under Windows

[Bob Smith]

Using Bison version 2.3 (Cygwin), I have incorporated the resulting C 
file into a Windows app, however, I'm having trouble figuring out how 
to debug the parser.  I've #define YYDEBUG 1, and set yydebug to 1, 
but the output is going to fprintf (stderr, ...) which doesn't help a 
Windows app.

It seems that the formatting and output of the debugging information 
are all bound up into one #define.  I want the first part, but not the 
second.

I already have a debugging window for my app defined, so I'd like to 
capture the output and display it in that window (it's a Listbox).

* I tried AllocConsole () hoping that the stderr output would go 
there, but nothing was displayed.

* I tried redefining yacc.c, and then using -S myyacc.c, but it 
appears to rely upon an external program m4 which didn't seem to get 
called, so the C compiler choked on the m4 stuff.  That was puzzling 
as I would think that it would be called for the default skeleton 
(yacc.c).

* I tried defining YYFPRINTF but I couldn't come up with anything that 
worked, mostly because of the variable number of arguments.

I'm sure that you clever people have solved this tricky problem 
before.  Any help you can provide is greatly appreciated.
--
_______________________________________________________________
Bob Smith - address@hidden - http://www.sudleyplace.com

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