The OP (Original Post) showed 2 lines of code. Neither one of which tallied the number of substitutions properly. My examples showed how to tally that for an individual line in very explict terms as I thought that was the "problem".

Both of your OP's example lines contain a "foreach" loop. "for" is just a shorthand for "foreach". "map" is a kind of a foreach loop. My post and Limbic~Region's are similar in advice. "A foreach is fine", means that you save nothing by "disguising" the foreach by writing it on a single line. The "foreach" is still there.

Are you saying that a foreach loop would be just as fast as what Limbic-Region was suggesting for an array? Limbic~Region's "for" statement IS a "foreach loop".

The OP didn't mention anything about running 10K regex'es on 30K lines! Although, it sounds like from subsequent posts that you have a solution that meets your needs in terms of performance. I don't really understand your application, but if this is some type of word for word substitution situation, a hash based approach would be faster. But that is mute if you are happy with what you have.

In reply to Re^3: How to count substitutions on an array by Marshall
in thread How to count substitutions on an array by Anonymous Monk

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.