Canned Regexps for Ruby?

Question

Does Ruby have a gem that provides a canned set of regular expressions (ala Perl's Regexp::Common module)? If not, how does the community share commonly-needed regexps? Thanks.

Answer 1

Yes, kind of.

There is a gem called ruby_regex that does this exact thing. From their github page:

Add to your Gemfile

  gem 'ruby_regex'

In the models

  validates_format_of :email, :with => RubyRegex::Email

And they have listed regex for:

RubyRegex::Url
RubyRegex::Domain
RubyRegex::Email
RubyRegex::Username
RubyRegex::USSocialSecurity
RubyRegex::GeneralPostalCode
RubyRegex::ZIPCode
RubyRegex::CreditCard
RubyRegex::MasterCard
RubyRegex::Visa
RubyRegex::TwitterUsername
RubyRegex::DeliciousUsername
RubyRegex::SlidesahreUsername
RubyRegex::GithubUsername
RubyRegex::UUID
RubyRegex::DBDate
RubyRegex::DBDatetime
RubyRegex::SpanishBankAccountNumber
RubyRegex::Dni

I'm not sure if they support anything else. There are lots of little one-off projects for this. But I haven't been able to find anything nearly as complete as the perl module.

I also found another one called Cregexp that has limited numbers of them as well.