Beefy Boxes and Bandwidth Generously Provided by pair Networks
The stupid question is the question not asked
 
PerlMonks  

Comment on

( #3333=superdoc: print w/ replies, xml ) Need Help??
> So there is really no way around first declaring the hash and then filling it. What a pity!

O come on! Just "cheat"! ;-)

DB<113> @CELLS = ("A-1", "B-2", "C-3", "A-4", "B-5", "C-6", "A-7", " +B-8", "C-9") => ("A-1", "B-2", "C-3", "A-4", "B-5", "C-6", "A-7", "B-8", "C-9") DB<114> %hash = map { /^([^-]*)-(.*)$/; if( $1 eq ($a//'-') ) { push + @$b, $2; () } else { ( $a = $1 => $b = [ $2 ] ) } } sort @CELLS; => ("A", [1, 4, 7], "B", [2, 5, 8], "C", [3, 6, 9])

Cheers Rolf

( addicted to the Perl Programming Language)


In reply to Re^4: Generating Hash-of-List using map? by LanX
in thread Generating Hash-of-List using map? by cmv

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!
  • 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
  • Outside of code tags, you may need to use entities for some characters:
            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 chanting in the Monastery: (11)
    As of 2014-09-02 12:33 GMT
    Sections?
    Information?
    Find Nodes?
    Leftovers?
      Voting Booth?

      My favorite cookbook is:










      Results (22 votes), past polls