Fixed TextHelper#word_wrap for multiline strings with extra carrier returns (closes #8663) [seth]

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@7562 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

actionpack/CHANGELOG

@@ -1,5 +1,7 @@
 *SVN*
 
+* Fixed TextHelper#word_wrap for multiline strings with extra carrier returns #8663 [seth]
+
 * Fixed that setting the :host option in url_for would automatically turn off :only_path (since :host would otherwise not be shown) #9586 [Bounga]
 
 * Added FormHelper#label #8641 [jcoglan]

actionpack/lib/action_view/helpers/text_helper.rb

@@ -161,7 +161,9 @@ module ActionView
       #   word_wrap('Once upon a time', 1)
       #   # => Once\nupon\na\ntime
       def word_wrap(text, line_width = 80)
-        text.gsub(/\n/, "\n\n").gsub(/(.{1,#{line_width}})(\s+|$)/, "\\1\n").strip
+        text.split("\n").collect do |line|
+          line.length > line_width ? line.gsub(/(.{1,#{line_width}})(\s+|$)/, "\\1\n").strip : line
+        end * "\n"
       end
 
       begin

actionpack/test/template/text_helper_test.rb

@@ -120,6 +120,10 @@ class TextHelperTest < Test::Unit::TestCase
     assert_equal("my very very\nvery long\nstring", word_wrap("my very very very long string", 15))
   end
 
+  def test_word_wrap_with_extra_newlines
+    assert_equal("my very very\nvery long\nstring\n\nwith another\nline", word_wrap("my very very very long string\n\nwith another line", 15))
+  end
+
   def test_pluralization
     assert_equal("1 count", pluralize(1, "count"))
     assert_equal("2 counts", pluralize(2, "count"))