Error when parentheses or square brackets in password

[gsmetal]

Hello! There is an error when parentheses or square brackets in password and using dictionary adjuster:

2.0.0-p0 :001 > checker = StrongPassword::StrengthChecker.new('asdf)asdf')
 => #<StrongPassword::StrengthChecker:0xcdf0f28 @base_password="asdf)asdf"> 
2.0.0-p0 :002 > checker.calculate_entropy(:use_dictionary => true)
RegexpError: unmatched close parenthesis: /\bxcv)(z(x(c(v)?)?)?)?\b/
    from /home/gsmetal/.rvm/gems/ruby-2.0.0-p0/gems/strong_password-0.0.1/lib/strong_password/dictionary_adjuster.rb:87:in `block in adjusted_entropy'
    from /home/gsmetal/.rvm/gems/ruby-2.0.0-p0/gems/strong_password-0.0.1/lib/strong_password/dictionary_adjuster.rb:75:in `each'
    from /home/gsmetal/.rvm/gems/ruby-2.0.0-p0/gems/strong_password-0.0.1/lib/strong_password/dictionary_adjuster.rb:75:in `each_with_index'
    from /home/gsmetal/.rvm/gems/ruby-2.0.0-p0/gems/strong_password-0.0.1/lib/strong_password/dictionary_adjuster.rb:75:in `adjusted_entropy'
    from /home/gsmetal/.rvm/gems/ruby-2.0.0-p0/gems/strong_password-0.0.1/lib/strong_password/strength_checker.rb:33:in `calculate_entropy'
    from (irb):2
2.0.0-p0 :003 > checker = StrongPassword::StrengthChecker.new('asdf[]asdf')
 => #<StrongPassword::StrengthChecker:0xccba064 @base_password="asdf[]asdf"> 
2.0.0-p0 :004 > checker.calculate_entropy(:use_dictionary => true)
RegexpError: premature end of char-class: /\bxcv[(\](z(x(c(v)?)?)?)?)?\b/
    from /home/gsmetal/.rvm/gems/ruby-2.0.0-p0/gems/strong_password-0.0.1/lib/strong_password/dictionary_adjuster.rb:87:in `block in adjusted_entropy'
    from /home/gsmetal/.rvm/gems/ruby-2.0.0-p0/gems/strong_password-0.0.1/lib/strong_password/dictionary_adjuster.rb:75:in `each'
    from /home/gsmetal/.rvm/gems/ruby-2.0.0-p0/gems/strong_password-0.0.1/lib/strong_password/dictionary_adjuster.rb:75:in `each_with_index'
    from /home/gsmetal/.rvm/gems/ruby-2.0.0-p0/gems/strong_password-0.0.1/lib/strong_password/dictionary_adjuster.rb:75:in `adjusted_entropy'
    from /home/gsmetal/.rvm/gems/ruby-2.0.0-p0/gems/strong_password-0.0.1/lib/strong_password/strength_checker.rb:33:in `calculate_entropy'
    from (irb):4

[bdmac]

Thanks for reporting this!

[gsmetal]

Thank you!