fragment method deals with regular expression characters. LH #73

CHANGELOG.rdoc

@@ -15,6 +15,8 @@
 * Bugfixes
 
   * Fixed a problem with nil passed to CDATA constructor
+  * Fragment method deals with regular expression characters
+    (Thanks Joel!) LH #73
 
 === 1.2.3 / 2009-03-22
 

lib/nokogiri/xml/fragment_handler.rb

@@ -9,7 +9,7 @@ def initialize node, original_html
       end
 
       def start_element name, attrs = []
-        @doc_started = true if @original_html =~ /^<#{name}/
+        @doc_started = true if @original_html.start_with?('<' + name)
         return unless @doc_started
 
         node = Node.new(name, @document)
@@ -21,7 +21,7 @@ def start_element name, attrs = []
       end
 
       def characters string
-        @doc_started = true if @original_html =~ /^\s*#{string}/
+        @doc_started = true if @original_html.strip.start_with?(string)
         @stack.last << Nokogiri::XML::Text.new(string, @document)
       end
 

test/html/test_node.rb

@@ -41,6 +41,12 @@ def test_swap
         assert_equal 0, @html.css('div').length
       end
 
+      def test_swap_with_regex_characters
+        @html.at('div').swap('<a href="foo">ba)r</a>')
+        a_tag = @html.css('a').first
+        assert_equal 'ba)r', a_tag.text
+      end
+
       def test_attribute_decodes_entities
         node = @html.at('div')
         node['href'] = 'foo&bar'