if ($file =~ /-\(lala\)-/) { ...

[download]
will work, but 
my $skip = "/-\(lala\)-/";
if ($file =~ /$skip/)

[download]
won't work. The reason is the difference where the backslash is used. In the first case it is used in a regexp, where it protects the (), while in the second one, it is used in a string where it is interpreted as a simple () used in the regexp again as capturing characters. You can use one of the following workarounds: 
my $skip = "/-\\(lala\\)-/";  # protect the backslash for itself
if ($file =~ /$skip/) { ...

[download]
my $skip = '/-\(lala\)-/';  # use singe quotes
if ($file =~ /$skip/) { ...

[download]
my $skip = "/-(lala\-/";  
if ($file =~ /\Q$skip/) { ... # quote it in the regexp

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my $skip = qr/-\(lala\)-/;    # use precompiled regexps
if ($file =~ /$skip/) { ...

[download]

Greetings,
Janek

In reply to Re: Regex matchin -(lala)- problem by bigj
in thread Regex matchin -(lala)- problem by sjaaq

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