Yes, of course. Consider: 
#!/usr/bin/perl

use strict;  
use warnings;

my $str = "1" x 5;

$_ = $str;
print "Single s///g:\n";
print "Before: [$_]; ";
s/1(1+)/$1/g;
print "After [$_]\n";

$_ = $str;
print "Loop s///:\n";
while (1) {
    print "Before: [$_]; "; 
    last unless s/1(1+)/$1/;
    print "After: [$_]\n";
}
print "\n";

__END__
Single s///g:
Before: [11111]; After [1111]
Loop s///:
Before: [11111]; After: [1111]
Before: [1111]; After: [111]
Before: [111]; After: [11]
Before: [11]; After: [1]
Before: [1];

[download]

Abigail

In reply to Re: Global regex giving up too soon by Abigail-II
in thread Global regex giving up too soon by Wassercrats

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.