$answer .= s/^-/\t-/gmr . "\n" for /\S.*?(?= +-)/g;

This leaves out the  -tag 2 at the very end of the c.l. string. Changing the look-ahead to  (?=(?: +-|$)) fixes this: 

c:\@Work\Perl\monks>perl -wMstrict -le
"$_ = q(execute test_number_1 -tex -tex_args -sub_args +debug_dir=./ -
+sub_args +debug_dir=./ -constraint parity_en,random_en -sub_args '\"'
+ ruck=1 '\"' -constraint dual_en -sub_args -cd -sub_args 2596.slow -s
+ub_args test -seed 1 -tex_args- -opt 1 -tag 2);
 ;;
 print qq{$_ \n};
 ;;
 my $answer = '';
 $answer .= s/^-/\t-/gmr . \"\n\" for /\S.*?(?=(?: +-|$))/g;
 $answer =~ s{^(\s*)(-\w+)\n\K((?:.*\n)*?)(?=\1\2-\n)}
             { $3 =~ s{^}{\t}gmr }gem;
 ;;
 print $answer;
"
execute test_number_1 -tex -tex_args -sub_args +debug_dir=./ -sub_args
+ +debug_dir=./ -constraint par
ity_en,random_en -sub_args '"' ruck=1 '"' -constraint dual_en -sub_arg
+s -cd -sub_args 2596.slow -sub_args test -seed 1 -tex_args- -opt 1 -t
+ag 2

execute test_number_1
        -tex
        -tex_args
                -sub_args +debug_dir=./
                -sub_args +debug_dir=./
                -constraint parity_en,random_en
                -sub_args '"' ruck=1 '"'
                -constraint dual_en
                -sub_args
                -cd
                -sub_args 2596.slow
                -sub_args test
                -seed 1
        -tex_args-
        -opt 1
        -tag 2

[download]
I still don't like that the  -cd is separated from its preceding  -sub_args argument. Have to think about that...

Give a man a fish:  <%-{-{-{-<

In reply to Re^2: Help with parsing command line to make more readable by AnomalousMonk
in thread Help with parsing command line to make more readable by proxie

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.