From: tad.bochan@...
Date: 2004-09-23T17:09:10+09:00
Subject: Réf. : whitespace string only


Anything wrong with

            if  "#{s}".chomp.strip.length == 0

or have I missed the point ?




Internet
ryco@gmx.net - 23/09/2004 09:54


Veuillez r�pondre � ruby-talk@ruby-lang.org

Pour : ruby-talk

cc :


Objet :     whitespace string only


Hi!

What's the best way to test if a string only consists of whitespaces and
newlines?

best I could come up with is


class String

   def is_whitespace_only?
     strings_to_test = split("\n")
     whitespace = /^\s+$/
     is_whitespace_only = true
     strings_to_test.each{ |str|
       unless whitespace.match(str) or str.empty?
         is_whitespace_only = false
 break
       end
     }
     is_whitespace_only
   end

end

But somehow I think there should be a better way to do it. Any ideas?
Is it okay to add such methods to class String itself?

Any advices appreciated.

regards,
Henrik










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