RE: RE: Re: Search Algorithm

[tenfourty]

Thanks to you all for your replies, this was the first time I had posted to this list and I'm amazed at the fast response.

I will typically be searching for around 200 keywords in up to 2000 files, I need to output in my log the name of the file, the number of occurences of keywords and then for each occurence of the keyword I need to print that line and the line number.

I think that you are right that a regexp is not the best way to search a line and that for each line I should check for the occurence of each word in a hash, my search should not be case sensitive as well, are the keys in a hash case sensitive, and if so how do I get around this?

[chromatic]

Keys in a hash are case sensitive, but nothing says you have to store them in a particular case. Pseudo-workable snippet follows:

foreach (@words) {
    $word_idx{lc($_)} = $position;
}

The important magic is in lc. You'll have to use lc when you pull values out of the hash, too, or use a tied hash that does this for you.