From: Nikolai Weibull <now@...>
Date: 2013-04-05T17:38:22+09:00
Subject: [ruby-core:54018] Re: [ruby-trunk - Feature #8206] Should Ruby core implement String#blank?

On Fri, Apr 5, 2013 at 5:19 AM, sam.saffron (Sam Saffron)
<sam.saffron@gmail.com> wrote:

> Essentially include? should be short cutting if the string length is zero and returning false.

The empty string is included by quite a few regular expressions, so
that can���t be done.  Why not simply define String#blank? as

class String
  def blank?
    empty? or not include?(/[^[:space:]]/)
  end
end