Set Redcarpet :no_intra_emphasis to true (#16669).

git-svn-id: http://svn.redmine.org/redmine/trunk@13105 e93f8b46-1217-0410-a6f0-8f06a7374b81

lib/redmine/wiki_formatting/markdown/formatter.rb

@@ -127,7 +127,8 @@ module Redmine
             :space_after_headers => true,
             :tables => true,
             :strikethrough => true,
-            :superscript => true
+            :superscript => true,
+            :no_intra_emphasis => true
           )
         end
       end

test/unit/lib/redmine/wiki_formatting/markdown_formatter.rb

@@ -28,6 +28,10 @@ class Redmine::WikiFormatting::MarkdownFormatterTest < ActionView::TestCase
     assert_equal "<p><strong>foo</strong></p>", @formatter.new("**foo**").to_html.strip
   end
 
+  def test_not_set_intra_emphasis
+    assert_equal "<p>foo_bar_baz</p>", @formatter.new("foo_bar_baz").to_html.strip
+  end
+
   def test_wiki_links_should_be_preserved
     text = 'This is a wiki link: [[Foo]]'
     assert_include '[[Foo]]', @formatter.new(text).to_html