Re: Fast/efficient way of check if a string in an strArr is contained in a line

in reply to Fast/efficient way of check if a string in an strArr is contained in a line

Create a master regex. Let's say your options were

foo.*bar
\w+\d+\s+\d+:\d$
[download]

You'd do something like:

my @skips = get_skips(); # However you get them
my $skip_regex = join '|', map { "(?:${_})" } @skips;
while ( <BIG_FILE> ) {
    next if /$skip_regex/;
    # Now you've checked everything.
}
[download]

It's not going to be as fast as a hash lookup, but it'll be faster than your for-loop in most cases. Plus, it'll be more self-documenting.

My criteria for good software:

Does it work?
Can someone else come in, make a change, and be reasonably certain no bugs were introduced?

Comment on Re: Fast/efficient way of check if a string in an strArr is contained in a line Select or Download Code

In Section Seekers of Perl Wisdom