Re^4: CPAN Module to determing overlap of 2 lists?

I added the line start anchor as I wanted to match whole lines.

Agreed, assuming text files, a more "binary" marker is better.

Currently I feel the regex solution is interesting, but still not my first choice. I'll dig deeper if I start profiling.

Comment on Re^4: CPAN Module to determing overlap of 2 lists?

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Re^5: CPAN Module to determing overlap of 2 lists? by LanX (Saint) on Aug 13, 2020 at 14:15 UTC
> Currently I feel the regex solution is interesting, but still not my first choice. I'll dig deeper if I start profiling. For completeness. Another approach would be combining a binary search with string equality `eq` if your priorities tend towards performance. Of course you could change to a division factor other than 0.5 depending on heuristics. Cheers Rolf _{(addicted to the Perl Programming Language :) Wikisyntax for the Monastery}	[reply]

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> Currently I feel the regex solution is interesting, but still not my first choice. I'll dig deeper if I start profiling.

For completeness.

Another approach would be combining a binary search with string equality eq if your priorities tend towards performance.

Of course you could change to a division factor other than 0.5 depending on heuristics.

Cheers Rolf
_{(addicted to the Perl Programming Language :)

Wikisyntax for the Monastery}