Normally I would do map { pop } 1 .. @_ as in my un-golfed original to make it clear that I am iterating a set number of times, since @_ is taken in scalar context in the range operator. I used the shorter version for golf having seen BrowserUk use it here. Your point about fiddling with elements is pertinent, and the behaviour shouldn't be relied upon, but is probably not the cause of the problem in this case.

I am running 5.18.2 on Linux Mint 17 and adding the -an flags as mentioned by choroba and haukex (++ to them) gives the results expected:-

$ echo www.perlmonks.org.split.reduce.code.check | perl -lanF'(\.)' -E
+'say sub{map pop,@_}->(@F)'
check.code.reduce.split.org.perlmonks.www
$

[download]

Note to self: start running multiple interpreter versions rather than being lazy and relying on whatever came with the Linux distro!

Cheers,

JohnGG

In reply to Re^5: split string using optimized code or perl one liner by johngg
in thread split string using optimized code or perl one liner by madtoperl

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.