Hello,

the problem sounded intriguing and, for my own amusement I got this, where the output is not exactly what asked for but still human readable:

perl -n0E "map{for(join'|',split/\n/){$r{$2}=$1if/(.*)time: (.*);/}map
+{s/-/BEFORE/g;s/\+/AFTER/g;s/.*id : (\d+);.*name: \w+;/ IN \1 /;s/[;|
+ ]+/ /g}values%r}split/^.*@;/m;say$_.$r{$_}for sort keys%r" diff-exam
+ple.txt

2023-01-01 12:00 IN 6109 value: 0 BEFORE status: ? AFTER status: C
2023-01-01 12:03 IN 6109 BEFORE value: 0 BEFORE status: ? AFTER value:
+ 2 AFTER status: CS
2023-01-01 12:05 IN 6109 value: 0 BEFORE status: ? AFTER status: C

[download]

The oneliner became ugly and longish for the text formatting, while a shorter one still has an acceptable output: 

perl -n0E "map{for(join'',split/\n/){$r{$2}=$1if/(.*)time:(.*)/}}split
+/.*@;/m;say$_.$/.$r{$_}for sort keys%r"

[download]

L*

There are no rules, there are no thumbs..
Reinvent the wheel, then learn The Wheel; may be one day you reinvent one of THE WHEELS.

In reply to Re: treat diff file in perl -- oneliner by Discipulus
in thread treat diff file in perl by Anonymous Monk

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.