Re: Regex error when [] occurs in file..

[moritz]

if ($temp =~ /#/){
        $temp =~ s/#$'//;
}

That's what's causing the problem: $' can contain arbitrary data, but you try to treat it as a regex.

The "good" solution is to use this regex instead: $temp =~ s/#.*$//;

In general you can also quote interpolated variables, then they are treated as text, not as regexes:

my $varaible = '[a-z]';
m/\Q$variable\E/  # matches literal [a-z], not a character class.

If you're not inside a regex, quotemeta does the same job.

[CountZero]

If you would happen to have the '#' character inside a (single or double) quoted string in your config file (I don't know if the specs for your config-file even allow this) then the s/#.*$// regex will cause you trouble as it will delete all of the string starting with the '#' character. That is probably not what you want.

It is not easy to take care of this: not even Regexp::Common gets it right.