Mark up code inside link text as <code>

Merged https://github.com/ruby/rdoc/pull/660

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65427 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

lib/rdoc/markup/to_html_crossref.rb

@@ -49,16 +49,19 @@ class RDoc::Markup::ToHtmlCrossref < RDoc::Markup::ToHtml
   # Creates a link to the reference +name+ if the name exists.  If +text+ is
   # given it is used as the link text, otherwise +name+ is used.
 
-  def cross_reference name, text = nil
+  def cross_reference name, text = nil, code = true
     lookup = name
 
     name = name[1..-1] unless @show_hash if name[0, 1] == '#'
 
-    name = "#{CGI.unescape $'} at #{$1}" if name =~ /(.*[^#:])@/
+    if name =~ /(.*[^#:])@/
+      text ||= "#{CGI.unescape $'} at <code>#{$1}</code>"
+      code = false
+    else
+      text ||= name
+    end
 
-    text = name unless text
-
-    link lookup, text
+    link lookup, text, code
   end
 
   ##
@@ -119,13 +122,14 @@ class RDoc::Markup::ToHtmlCrossref < RDoc::Markup::ToHtml
   def gen_url url, text
     return super unless url =~ /\Ardoc-ref:/
 
-    cross_reference $', text
+    name = $'
+    cross_reference name, text, name == text
   end
 
   ##
   # Creates an HTML link to +name+ with the given +text+.
 
-  def link name, text
+  def link name, text, code = true
     if name =~ /(.*[^#:])@/ then
       name = $1
       label = $'
@@ -139,6 +143,10 @@ class RDoc::Markup::ToHtmlCrossref < RDoc::Markup::ToHtml
     else
       path = ref.as_href @from_path
 
+      if code and RDoc::CodeObject === ref and !(RDoc::TopLevel === ref)
+        text = "<code>#{text}</code>"
+      end
+
       if path =~ /#/ then
         path << "-label-#{label}"
       elsif ref.sections and