Beefy Boxes and Bandwidth Generously Provided by pair Networks
We don't bite newbies here... much
 
PerlMonks  

Comment on

( #3333=superdoc: print w/replies, xml ) Need Help??
> I'm still not sure what you're trying to achieve here, cause your grep returns the PATTERNs which matched.

Yes, LanX, and in scalar context it returns the NUMBER of patterns that matched. That's what I'm using in my (much larger) script.

> ...His input list to grep probably consists of a lot of patterns, which may include an empty string. ... where he showed us a literal empty string, there's probably a foreach loop with an iterator on the lefthand side of the match operator...

That's exactly what I'm doing, davido.

Obviously, if I posted a (much larger) block of real-life code here, it would make more sense (to those who bother comprehending it), but there would be much fewer interested people. A short, distilled version of the problem may not make real-life sense, but is much easier to discuss.

In reply to Re^3: grep trouble by LogMiner
in thread grep trouble by LogMiner

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, 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, 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.
  • Log In?
    Username:
    Password:

    What's my password?
    Create A New User
    Chatterbox?
    and the web crawler heard nothing...

    How do I use this? | Other CB clients
    Other Users?
    Others having an uproarious good time at the Monastery: (2)
    As of 2018-11-17 23:43 GMT
    Sections?
    Information?
    Find Nodes?
    Leftovers?
      Voting Booth?
      My code is most likely broken because:
















      Results (205 votes). Check out past polls.

      Notices?