I missed your second test, not sure if it's because --

Could you please elaborate where and why your $combined2 is better?

(UPDATE: If there is a quantifiable reason why "X" should be ordered before "A", I'm sure this can be added to the sort function, see cmp_more_frequently($a,$b) )

The basic idea is to build a sort function which sorts by the combined less-then relation stored in a HoH %cmp.

Contradictory orders are calculated by increments and decrements.

<Reveal this spoiler or all in this thread>

Cheers Rolf
(addicted to the Perl Programming Language :)
see Wikisyntax for the Monastery

updates

  • renamed %lt to %cmp
  • DISCLAIMER: This is a hack, and can be done better and more elegantly, and I'm sure it lacks proper testing.
  • OK there is definitely a bug, looking into it

    In reply to Re: Merge lists of ordered strings into canonical ordering by LanX
    in thread Merge lists of ordered strings into canonical ordering by NERDVANA

    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, details, 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, summary, 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.