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??
(sorry, just not feeling up to coding at the moment)

How about this idea: put the keywords into a hash, with a zero as the hash value for each keyword. Then for each token in the input string, increment the hash value for that token (check to see whether it's in the hash first?). The non-zero hash values are then counts of how many times each keyword appears in the input string. That leaves the hunting for the tokens to the hash implementation... but you still have to look for the non-zero hash elements. Something like foreach keyword in the hash, if the value is greater than zero, spit out the keyword and the value (then set it to zero again, if this is all inside a loop)... ? The hunting-through-an-array thing is one of my old C habits that I'm trying to break.

Please don't scream, just gently correct me if I'm being stupid.

In reply to Re: Count multiple pattern matches by melora
in thread Count multiple pattern matches by johnnywang

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 cooling their heels in the Monastery: (9)
    As of 2019-11-22 15:55 GMT
    Sections?
    Information?
    Find Nodes?
    Leftovers?
      Voting Booth?
      Strict and warnings: which comes first?



      Results (113 votes). Check out past polls.

      Notices?