Merge pull request rails#6273 from KensoDev/feature/simple_format_ref…

…actoring

Feature/simple format refactoring

actionpack/lib/action_view/helpers/text_helper.rb

@@ -233,6 +233,7 @@ def word_wrap(text, *args)
       #
       # ==== Options
       # * <tt>:sanitize</tt> - If +false+, does not sanitize +text+.
+      # * <tt>:wrapper_tag</tt> - String representing the tag wrapper, defaults to <tt>"p"</tt>
       #
       # ==== Examples
       #   my_text = "Here is some basic text...\n...with a line break."
@@ -251,16 +252,17 @@ def word_wrap(text, *args)
       #   simple_format("<span>I'm allowed!</span> It's true.", {}, :sanitize => false)
       #   # => "<p><span>I'm allowed!</span> It's true.</p>"
       def simple_format(text, html_options={}, options={})
-        text = '' if text.nil?
-        text = text.dup
-        start_tag = tag('p', html_options, true)
         text = sanitize(text) unless options[:sanitize] == false
-        text = text.to_str
-        text.gsub!(/\r\n?/, "\n")                    # \r\n and \r -> \n
-        text.gsub!(/\n\n+/, "</p>\n\n#{start_tag}")  # 2+ newline  -> paragraph
-        text.gsub!(/([^\n]\n)(?=[^\n])/, '\1<br />') # 1 newline   -> br
-        text.insert 0, start_tag
-        text.html_safe.safe_concat("</p>")
+        wrapper_tag = options.fetch(:wrapper_tag, :p)
+        paragraphs = split_paragraphs(text)
+
+        if paragraphs.empty?
+          content_tag(wrapper_tag, nil, html_options)
+        else
+          paragraphs.map { |paragraph|
+            content_tag(wrapper_tag, paragraph, html_options, options[:sanitize])
+          }.join("\n\n").html_safe
+        end
       end
 
       # Creates a Cycle object whose _to_s_ method cycles through elements of an
@@ -402,6 +404,14 @@ def set_cycle(name, cycle_object)
           @_cycles = Hash.new unless defined?(@_cycles)
           @_cycles[name] = cycle_object
         end
+
+        def split_paragraphs(text)
+          return [] if text.blank?
+
+          text.to_str.gsub(/\r\n?/, "\n").split(/\n\n+/).map! do |t|
+            t.gsub!(/([^\n]\n)(?=[^\n])/, '\1<br />') || t
+          end
+        end
     end
   end
 end

actionpack/test/template/text_helper_test.rb

@@ -46,6 +46,14 @@ def test_simple_format_should_not_sanitize_input_when_sanitize_option_is_false
     assert_equal "<p><b> test with unsafe string </b><script>code!</script></p>", simple_format("<b> test with unsafe string </b><script>code!</script>", {}, :sanitize => false)
   end
 
+  def test_simple_format_with_custom_wrapper
+    assert_equal "<div></div>", simple_format(nil, {}, :wrapper_tag => "div")
+  end
+
+  def test_simple_format_with_custom_wrapper_and_multi_line_breaks
+    assert_equal "<div>We want to put a wrapper...</div>\n\n<div>...right there.</div>", simple_format("We want to put a wrapper...\n\n...right there.", {}, :wrapper_tag => "div")
+  end
+
   def test_simple_format_should_not_change_the_text_passed
     text = "<b>Ok</b><script>code!</script>"
     text_clone = text.dup