Markup punctuations need to be separated with a space

Author: nobu

lib/rdoc/text.rb

@@ -313,6 +313,6 @@ def wrap(txt, line_len = 76)
   # Character class to be separated by a space when concatenating
   # lines.
 
-  SPACE_SEPARATED_LETTER_CLASS = /[\p{Nd}\p{Lc}\p{Pc}]/
+  SPACE_SEPARATED_LETTER_CLASS = /[\p{Nd}\p{Lc}\p{Pc}]|[!-~&&\W]/
 
 end

test/rdoc/test_rdoc_markup_to_html.rb

@@ -257,7 +257,7 @@ def accept_paragraph_br
   end
 
   def accept_paragraph_break
-    assert_equal "\n<p>hello<br>world</p>\n", @to.res.join
+    assert_equal "\n<p>hello<br> world</p>\n", @to.res.join
   end
 
   def accept_paragraph_i
@@ -416,6 +416,18 @@ def test_accept_paragraph_newline
     @to.start_accepting
     @to.accept_paragraph para("#{ohayo}\n", "#{sekai}\n")
     assert_equal "\n<p>#{ohayo}#{sekai}</p>\n", @to.res.join
+
+    @to.start_accepting
+    @to.accept_paragraph para("+hello+\n", "world\n")
+    assert_equal "\n<p><code>hello</code> world</p>\n", @to.res.join
+
+    @to.start_accepting
+    @to.accept_paragraph para("hello\n", "+world+\n")
+    assert_equal "\n<p>hello <code>world</code></p>\n", @to.res.join
+
+    @to.start_accepting
+    @to.accept_paragraph para("+hello+\n", "+world+\n")
+    assert_equal "\n<p><code>hello</code> <code>world</code></p>\n", @to.res.join
   end
 
   def test_accept_heading_output_decoration