Yours is bugged. It looks at the outer $_ in all those ref calls. Just happens to work.

Here's a non-recursive version: 

sub mychomp {
  while (@_) {
    eval { chomp $_[0] }, shift, next unless ref;
    (push @_, @{shift @_}), next if ref $_[0] eq 'ARRAY';
    (push @_, values %{shift @_}), next if ref $_[0] eq 'HASH';
    shift;
  }
}

[download]

-- Randal L. Schwartz, Perl hacker

update: I didn't claim it was a working version. Thanks for the updates in the thread. {grin}

Also, I didn't see the unusual multi-line backwards-for in the original code, so it appears to be less buggy than I thought. {sigh}

In reply to Re: chomp any data structure recursively by merlyn
in thread chomp any data structure recursively by Juerd

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.