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authorAkira Matsuda <ronnie@dio.jp>2011-07-13 20:30:34 +0900
committerAkira Matsuda <ronnie@dio.jp>2011-07-14 07:48:39 +0900
commit9c60860322d58e1a2fcd42f1a21ec86ec2caa50b (patch)
tree81f16658ab43a8235031cba10dc0e6a030e7d3b4
parent704ee0df65b6ae9f39bbd4c7b3ed697a4039efd8 (diff)
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treat fullwidth whitespace as a blank character
-rw-r--r--activesupport/lib/active_support/core_ext/object/blank.rb6
-rw-r--r--activesupport/test/core_ext/blank_test.rb2
2 files changed, 6 insertions, 2 deletions
diff --git a/activesupport/lib/active_support/core_ext/object/blank.rb b/activesupport/lib/active_support/core_ext/object/blank.rb
index 8221dc4abe..677ec1141d 100644
--- a/activesupport/lib/active_support/core_ext/object/blank.rb
+++ b/activesupport/lib/active_support/core_ext/object/blank.rb
@@ -86,14 +86,18 @@ class Hash
end
class String
+ # 0x3000: fullwidth whitespace
+ NON_WHITESPACE_REGEXP = %r![^\s#{[0x3000].pack("U")}]!
+
# A string is blank if it's empty or contains whitespaces only:
#
# "".blank? # => true
# " ".blank? # => true
+ # " ".blank? # => true
# " something here ".blank? # => false
#
def blank?
- self !~ /\S/
+ self !~ NON_WHITESPACE_REGEXP
end
end
diff --git a/activesupport/test/core_ext/blank_test.rb b/activesupport/test/core_ext/blank_test.rb
index 97c6b213ba..98ce8541a3 100644
--- a/activesupport/test/core_ext/blank_test.rb
+++ b/activesupport/test/core_ext/blank_test.rb
@@ -2,7 +2,7 @@ require 'abstract_unit'
require 'active_support/core_ext/object/blank'
class BlankTest < Test::Unit::TestCase
- BLANK = [ EmptyTrue.new, nil, false, '', ' ', " \n\t \r ", [], {} ]
+ BLANK = [ EmptyTrue.new, nil, false, '', ' ', " \n\t \r ", ' ', [], {} ]
NOT = [ EmptyFalse.new, Object.new, true, 0, 1, 'a', [nil], { nil => 0 } ]
def test_blank