You could join all the search terms into one big regexp:

my $re = join '|', map { chomp; $_ } <FILE2>;

then fetch all the abstracts for each of your keys and run the regexp against each of them. Take care to precompile it with $re = qr/$re/. If you'd like the terms to only be found as whole words, something like $re = qr/\b(?:$re)\b/ should do.

With that many terms, it's probably well worth using Regexp::Trie:

use Regexp::Trie;
my $rt = Regexp::Trie->new;
while(<FILE2>) {
  $rt->add($_);
}
$rt = $rt->regexp;

[download]

You can still add the word boundary stuff as above then.

In reply to Re: Alternative to querying a database to save time by mbethke
in thread Alternative to querying a database to save time by smandape1

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