whenparsing

Hi,

I just added a function to Bibulus.pm so that the user can do things
with the entries.

For instance, if the user wants to add 754 to the year to get it _ab
urbe condita_ (after the foundation of Rome), s/he just adds the
following to the Perl file (e.g., doc/testmain) before the call to
load:

$bib->whenparsing('year',
		  sub {
		    $_[0] + 754;
		  });

What do you all think?

/Thomas
-- 
\author{Thomas Widmann\thanks{3/2,  54 Mavisbank Gardens,  Glasgow  G51\,1HL,
Scotland, EU\@. Tel.~+44 (141) 419\,9872.}\\{\tt [email protected]}}