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@@ -1,5 +1,7 @@
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 === SVN
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+* Imported #blank? from DataMapper.
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+
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 * Imported inflector from Merb.
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 * Imported ConnectionPool from Sequel.

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@@ -1,4 +1,2 @@
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-* Object#blank?.
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-
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 * code statistics? (from sequel).

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@@ -4,5 +4,6 @@
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   time_calculations
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   connection_pool
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   inflector
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+  blank
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 ].each {|f| require(File.join(dir, f))}

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@@ -1 +1,36 @@
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+class Object
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+  def blank?
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+    nil? || (respond_to?(:empty?) && empty?)
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+  end
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+end
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+
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+class Numeric
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+  def blank?
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+    false
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+  end
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+end
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+
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+class NilClass
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+  def blank?
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+    true
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+  end
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+end
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+
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+class TrueClass
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+  def blank?
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+    false
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+  end
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+end
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+
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+class FalseClass
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+  def blank?
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+    true
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+  end
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+end
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+
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+class String
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+  def blank?
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+    empty? || self =~ /\A\s*\Z/
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+  end
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+end

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@@ -1 +1,9 @@
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+require File.join(File.dirname(__FILE__), 'spec_helper')
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+
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+describe "blank?" do
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+  it "should mark empty objects as blank" do
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+    [ nil, false, '', '   ', "  \n\t  \r ", [], {} ].each { |f| f.should be_blank }
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+    [ Object.new, true, 0, 1, 'a', [nil], { nil => 0 } ].each { |t| t.should_not be_blank }
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+  end
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+end