Beefy Boxes and Bandwidth Generously Provided by pair Networks
Syntactic Confectionery Delight

Comment on

( #3333=superdoc: print w/replies, xml ) Need Help??
Zaxo is right with his explanation, but what I don't understand is your output.

I would expect the last line of output to be WooWoo

Using your last few lines of code here's my output using perl 5.8.3
Useless use of not in void context at line 7. WooWoo

What happens is that the negated pattern bind operator substitutes the first capital "H" it finds in "WooHoo".
I am evaluating whether the substitution was *not* successful, but since I do nothing with the result I get a the void warning. Since my string has changed I now print "WooWoo". I would have expected your code to print "WooWoo" too.

I'm going to quit now because this sounds a bit too much like a Dr. Seuss book.


Thanks duff. I see now what the problem is. In my code, I'm taking only a few snippets of the original code. If I take the whole code, I'm working on the modified string "HooHoo" at the time, and would need a /g modifier to get both "H"'s

In reply to Re: Could some explain =~ vs !~ to me? by krusty
in thread Could some explain =~ vs !~ to me? by Plankton

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?

    What's my password?
    Create A New User
    Discipulus LanX is obsessed by Brexit..
    [LanX]: I Can't Wait ...

    How do I use this? | Other CB clients
    Other Users?
    Others lurking in the Monastery: (9)
    As of 2018-02-23 11:23 GMT
    Find Nodes?
      Voting Booth?
      When it is dark outside I am happiest to see ...

      Results (301 votes). Check out past polls.