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-rw-r--r--activesupport/lib/active_support/core_ext/object/blank.rb8
1 files changed, 7 insertions, 1 deletions
diff --git a/activesupport/lib/active_support/core_ext/object/blank.rb b/activesupport/lib/active_support/core_ext/object/blank.rb
index d060ac04d8..fe27f45295 100644
--- a/activesupport/lib/active_support/core_ext/object/blank.rb
+++ b/activesupport/lib/active_support/core_ext/object/blank.rb
@@ -1,4 +1,5 @@
# encoding: utf-8
+require 'active_support/core_ext/string/encoding'
class Object
# An object is blank if it's false, empty, or a whitespace string.
@@ -99,7 +100,12 @@ class String
# " something here ".blank? # => false
#
def blank?
- self !~ NON_WHITESPACE_REGEXP
+ # 1.8 does not takes [:space:] properly
+ if encoding_aware?
+ self !~ /[^[:space:]]/
+ else
+ self !~ NON_WHITESPACE_REGEXP
+ end
end
end