Re: Best approach to creating a regex from a filehandle

There is no need for the array:

my $blacklist_regex = join "|" => map {"(?:$_)"} map { chomp; $_ } <BL
+IST>;
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Comment on Re: Best approach to creating a regex from a filehandle Download Code

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Re^2: Best approach to creating a regex from a filehandle by smls (Friar) on May 18, 2014 at 20:26 UTC
Unless you're sure that the input file will only contain safe characters, you should call quotemeta on `$_` inside the `map`. Also, what's the benefit of chaining two `map`'s like that, instead of combining them into one? Edit: Oops, I only just now noticed that choroba already mentioned quotemeta in his answer. Sorry for the redundancy.	[reply] [d/l] [select]
Re^3: Best approach to creating a regex from a filehandle by toolic (Bishop) on May 18, 2014 at 22:15 UTC
You're right... it can be simplified using a single map `my $blacklist_regex = join "\|" => map { chomp; "(?:$_)"} <BLIST>;` [download]	[reply] [d/l]