On Apr 17, 5:32 pm, Paul McGuire <pt...@austin.rr.com> wrote: > On Apr 17, 2:40 pm, prueba...@latinmail.com wrote: > > > > > On Apr 17, 11:26 am, Paul McGuire <pt...@austin.rr.com> wrote: > > > > On Apr 16, 10:57 am, prueba...@latinmail.com wrote: > > > > > Another interesting task for those that are looking for some > > > > interesting problem: > > > > I inherited some rule system that checks for programmers program > > > > outputs that to be ported: given some simple rules and the values it > > > > has to determine if the program is still working correctly and give > > > > the details of what the values are. If you have a better idea of how > > > > to do this kind of parsing please chime in. I am using tokenize but > > > > that might be more complex than it needs to be. This is what I have > > > > come up so far: > > > > I've been meaning to expand on pyparsing's simpleArith.py example for > > > a while, to include the evaluation of the parsed tokens. Here is the > > > online version,http://pyparsing.wikispaces.com/file/view/eval_arith.py, > > > it will be included in version 1.5.2 (coming shortly). I took the > > > liberty of including your rule set as a list of embedded test cases. > > > > -- Paul > > > That is fine with me. I don't know how feasible it is for me to use > > pyparsing for this project considering I don't have admin access on > > the box that is eventually going to run this. To add insult to injury > > Python is in the version 2->3 transition (I really would like to push > > the admins to install 3.1 by the end of the year before the amount of > > code written by us gets any bigger) meaning that any third party > > library is an additional burden on the future upgrade. I can't > > remember if pyparsing is pure Python. If it is I might be able to > > include it alongside my code if it is not too big.- Hide quoted text - > > > - Show quoted text - > > It *is* pure Python, and consists of a single source file for the very > purpose of ease-of-inclusion. A number of projects include their own > versions of pyparsing for version compatibility management, matplotlib > is one that comes to mind. > > The upcoming version 1.5.2 download includes a pyparsing_py3.py file > for Python 3 compatibility, I should have that ready for users to > download *VERY SOON NOW*! > > -- Paul
Thanks, I will consider it. I have to admit that although it looks like it is a very good solution, it is also longer and more complex than my current code. Having to explicitly define standard python evaluation and semantics is a bit overkill. -- http://mail.python.org/mailman/listinfo/python-list
