use strict;
use warnings;
use Regexp::Common qw/balanced/;

while (<DATA>) {
  chomp;
  next if ! /($RE{balanced}{-parens=>'()'})/ or $1 =~ /^\("/;
  print "$_\n";
}

__DATA__
blah.boo(getSomething())
blah.boo("getSomething")
blah.boo(getSomething("something else"))
blah.boo("getSomething()")