On Fri, August 25, 2006 03:11, Allin Cottrell wrote:
 While in Scotland in mid-August, I had some conversations with a
 friend who is experienced in writing compilers, and with some
 pointers from him, I think I can do a substantially better job
 with gretl's "genr" functionality.  I believe we can make genr
 more efficient, more robust, and more readily extensible, by
 using employing a more systematic approach to the parsing of
 user input.  So at present I'm working on that genr replacement.
 It won't be in 1.6.0 -- which I'd like to release as soon as all
 outstanding bug reports are handled -- but I hope it will be in
 1.6.1. 
This is very good. From the user's perspective, genr is ok now, but if you
look at the source, everything is very complicated. One thing I'd like to have
is a clean mechanism for defining functions with more than one argument. At
present we have fracdiff, whose code is quite messy, and pvalue, which also is
treated as a special case. It'd be very nice to have optional arguments, à la
R.
Riccardo "Jack" Lucchetti
Dipartimento di Economia
Facoltà di Economia "G. Fuà"
Ancona