that's very different because there are no lines in between.

use strict;
use warnings;
use Test::More;

my $in = 'A |simple*example| is |so*simple| to come*up |with
these*days| according to some *experts*';

my $exp = 'A |simple-example| is |so-simple| to come*up |with
these-days| according to some *experts*';

my $start = qr/\|/;
my $stop  = qr/\|/;

my $got = $in;

$got =~
s[
     ($start) (.*?) ($stop)
][
   "$1"
   . ( $2 =~ tr/\*/-/r )
   . "$3"
 ]gsxe;

is($got,$exp);

done_testing;

[download]

updates
added

Cheers Rolf
(addicted to the Perl Programming Language :)
Wikisyntax for the Monastery

In reply to Re^5: s///g within m//g regions (updated) by LanX
in thread s///g within m//g regions by almr

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.