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Just for fun, the first solution that came into my head. It's not the most efficient (I agree with the use of glob as a practical solution) but I think it's reasonably simple to understand. No recursion, only iteration.
use strict; my @data = qw( 00- 0101 011- 1-0- ); while (grep /-/, @data) { @data = map do { unless (/-/) { $_; } else { my ($zero, $one); ($zero = $_) =~ s/-/0/; ($one = $_) =~ s/-/1/; ($zero, $one); } }, @data; } print join(" ", map oct "0b$_", @data), "\n";
Note that the grep can actually be removed if you don't mind having a 'map' with side-effects; you can keep track of whether you did any replacements as you go along, and stop after the first time that there weren't any.

In reply to Re: Working with Binary Numbers by hobbs
in thread Working with Binary Numbers by shoness

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