Use a consistent load path to avoid double requires. Fix some scattered Ruby warnings.

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@6057 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

1 files changed, 10 insertions, 5 deletions

diff --git a/actionpack/lib/action_controller/vendor/html-scanner/html/selector.rb b/actionpack/lib/action_controller/vendor/html-scanner/html/selector.rb
index 287afcc3c4..7ffc1fcfa8 100644
--- a/actionpack/lib/action_controller/vendor/html-scanner/html/selector.rb
+++ b/actionpack/lib/action_controller/vendor/html-scanner/html/selector.rb
@@ -240,19 +240,24 @@ module HTML
       raise ArgumentError, "CSS expression cannot be empty" if selector.empty?
       @source = ""
       values = values[0] if values.size == 1 && values[0].is_a?(Array)
+
       # We need a copy to determine if we failed to parse, and also
       # preserve the original pass by-ref statement.
       statement = selector.strip.dup
+
       # Create a simple selector, along with negation.
       simple_selector(statement, values).each { |name, value| instance_variable_set("@#{name}", value) }
 
+      @alternates = []
+      @depends = nil
+
       # Alternative selector.
       if statement.sub!(/^\s*,\s*/, "")
         second = Selector.new(statement, values)
-        (@alternates ||= []) << second
+        @alternates << second
         # If there are alternate selectors, we group them in the top selector.
         if alternates = second.instance_variable_get(:@alternates)
-          second.instance_variable_set(:@alternates, nil)
+          second.instance_variable_set(:@alternates, [])
           @alternates.concat alternates
         end
         @source << " , " << second.to_s
@@ -412,7 +417,7 @@ module HTML
 
       # If this selector is part of the group, try all the alternative
       # selectors (unless first_only).
-      if @alternates && (!first_only || !matches)
+      if !first_only || !matches
         @alternates.each do |alternate|
           break if matches && first_only
           if subset = alternate.match(element, first_only)
@@ -796,8 +801,8 @@ module HTML
       second = Selector.new(statement, values)
       # If there are alternate selectors, we group them in the top selector.
       if alternates = second.instance_variable_get(:@alternates)
-        second.instance_variable_set(:@alternates, nil)
-        (@alternates ||= []).concat alternates
+        second.instance_variable_set(:@alternates, [])
+        @alternates.concat alternates
       end
       second
     end