Hi dbander

I would tend to do it the other way around: store the waivers into a hash (a simple hash) where the key is the common identifier between the two files, and then read the violations file line by line, changing the content of the line when the identifier is common between the two files and writing the line to the new files. This is often more efficient this way.

But since we don't know about the size of the violations and waivers files, it actually may be that your solution is better (especially if there are many more waivers than violations, but that's seems rather unlikely).


In reply to Re^2: Filter out an input file with a given waiver file, and output to a specific file by Laurent_R
in thread Filter out an input file with a given waiver file, and output to a specific file by DespacitoPerl

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.