coolslife wrote:

> >>I saw that lots of people have implemented their own version of grep
> >>and most have called it "pygrep". (Am I right about that?). Since this
> >>is a resource consuming activity,  does anyone have any idea what
> >>might be a optimum way to implement this?


> >See "NR-grep: A Fast and Flexible Pattern Matching Tool", by Gonzalo
> >Navarro, at http://www.dcc.uchile.cl/~gnavarro/ps/spe01.ps.gz for how
> >to search text fast.
>  
>  Thanx for your replies.

>  are there any other resources I can look up?

Since grep uses Regular Expressions, you might want to have a look at 
the standard module 're'. One could try something like the following 
example. It's quite simple (because it's Python ;-)

 > >>>>>>>>>>>>>>>snip
import re, sys

# your search expression here, maybe
pat = sys.argv[1]

# your input text filename, maybe
fname = sys.argv[2]

# now scan the textfile
for line in open("C:/temp/test.txt").readlines():
   if re.search(pat, line):
     print line,

# that's it.
<<<<<<<<<<<<<<<<snap

Hope this helps. Sure it's not perfect... ;-)

   Stefan

-- 
http://mail.python.org/mailman/listinfo/python-list