Beefy Boxes and Bandwidth Generously Provided by pair Networks
Your skill will accomplish
what the force of many cannot

Comment on

( #3333=superdoc: print w/replies, xml ) Need Help??

I personally believe that for once Cop's question is legitimate, but one cannot put "Perl specifics away" since this is Perl: while avoiding a pair of parentheses may represent an occasional advantage -I for one try to avoid them all the time, if possible- in this particular case wouldn't square at all with Perl's whole syntax and semantics. Anyway, as this very thread and tons of similar ones show, Perl's current argument passing mechanism is both fascinating for the far reaching consequences it gets out of an extreme simplicity on the one hand, and awkward on the other one. This is why after some initial period of being skeptical I now cherish Perl 6's message passing. For very simple stuff I can still rely on @_ and not worry at all. Suppose I want to write a sub that will take a list (of strings) and concat it after making all lowercase every element out of two starting with the first, and all uppercase the other ones; then I'd write it like this:

pugs> sub foo { [~] map -> $a, $b { lc $a, uc $b }, @_ }; pugs> say foo <FoO bAr BaZ>; fooBARbaz

But if I were to write a sub that would take two integers and return the product of integer numbers comprised between them, then I would write:

pugs> sub prod (int $n, int $m) { [*] $n..$m }; pugs> say prod 3, 6; 360
If you can't understand the incipit, then please check the IPB Campaign.

In reply to Re^3: shift vs @_ by blazar
in thread shift vs @_ by Zadeh

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
    and all is quiet...

    How do I use this? | Other CB clients
    Other Users?
    Others examining the Monastery: (4)
    As of 2018-06-20 00:14 GMT
    Find Nodes?
      Voting Booth?
      Should cpanminus be part of the standard Perl release?

      Results (116 votes). Check out past polls.