By default, perltidy handles list with fat commas differently than plain lists. See "Controlling List Formatting" in the perltidy man page. This worked for me:

perltidy -st -cab=1 -mft=1 -lp -vt=1 -boc PM_503139_02.pl
Output:
my @list = ( '1', '2', '3', ); my %hash = ( a => '1', b => '2', c => '3', );
Key:
-boc --break-at-old-comma-breakpoints -mft=n --maximum-fields-per-table=n -cab=n --comma-arrow-breakpoints=n -lp --line-up-parentheses -pt=n --paren-tightness=n -vt=n --vertical-tightness=n -vtc=n --vertical-tightness-closing=n
The real problem was in stopping @list from being flattened into one line, which perlytidy wants to do whenever the list *could* fit on a single line. The '-boc' flag, which tells it to using existing linebreaks, keeps @list in multi-line form, but this may be non-optimal for formatting the rest of your program.


In reply to Re: perltidy list formatting by Util
in thread perltidy list formatting by perrin

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.