Re: greping for names

IMHO substr() works faster than regexp:

while(<>)
{
    print if(substr($_,-3,2) eq ".c");
}
[download]

Comment on Re: greping for names Download Code

Replies are listed 'Best First'.
Re: Re: greping for names by moxliukas (Curate) on Jul 19, 2002 at 14:43 UTC
However IMHO this approach is more fragile. I am not sure how this would work on different platforms, because new line is two characters wide on some platforms and only one character wide on the others. I might be picky, but if you are really going for speed, use single qoutes istead of double (I know in reality it makes almost no difference, and I'm just being picky ;)	[reply]
Re: Re: Re: greping for names by Shendal (Hermit) on Jul 19, 2002 at 15:28 UTC
For the record, ".c" will get optimized to '.c', so it really doesn't matter. Consider `% perl -MO=Deparse -e 'print ".c";' -e syntax OK print '.c';` [download] Cheers, Shendal	[reply] [d/l]