This
my $last_one = ( split, /\\\\/, $string )[ -1 ]
will give you what you want. Alternatively,
my $last_one = ( $string =~ /([^\\](?!.*\\).*)$/ )[ 0 ];
comes to mind, but it looks more complicated that it ought to be (this is largely because it is trying to accommodate the possibility that the desired string contain a single embedded backslash). I prefer the first (
split) option over the second.
Update: Fixed original regexp, which incorrectly included a single backslash at the start of the returned string.
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