This is not a correct conclusion or suggestion. Take a look at your code again:
my $regexs = qr/[^\Q$str\E]/i;
[] is used to define a character class, not a regular expression grouping. The statement above reads: "at least one character not found in $str." The reason your test code did not show you this is because you were matching:
($a = "SCALAR") =~ s/[^TT]/HOO/gi;
Or, simplified:
($a = "SCALAR") =~ s/[^T]/HOO/gi;
Since every character in the string "SCALAR" is "not T", every character is replaced with HOO. The original request was for a method of implementing !// using only //.
Please put a little more thought into your response... Cheers...
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