diff --git a/lib/cucumber/parser/feature.rb b/lib/cucumber/parser/feature.rb
new file mode 100644
index 0000000000..52598bb8de
--- /dev/null
+++ b/lib/cucumber/parser/feature.rb
@@ -0,0 +1,1490 @@
+module Cucumber
+  module Parser
+    # TIP: When you hack on the grammar, just delete feature.rb in this directory.
+    # Also make sure you have uninstalled all cucumber gems (don't forget xxx-cucumber
+    # github gems).
+    #
+    # Treetop will then generate the parser in-memory. When you're happy, just generate
+    # the rb file with tt feature.tt
+    module Feature
+      include Treetop::Runtime
+
+      def root
+        @root || :feature
+      end
+
+      include I18n
+
+      include Table
+
+      module Feature0
+      end
+
+      module Feature1
+        def white
+          elements[0]
+        end
+
+        def comment
+          elements[1]
+        end
+
+        def white
+          elements[2]
+        end
+
+        def tags
+          elements[3]
+        end
+
+        def white
+          elements[4]
+        end
+
+        def header
+          elements[5]
+        end
+
+        def background
+          elements[6]
+        end
+
+        def feature_elements
+          elements[7]
+        end
+
+      end
+
+      module Feature2
+        def build
+          if background.respond_to?(:build)
+            Ast::Feature.new(comment.build, tags.build, header.text_value, feature_elements.build, background.build)
+          else
+            Ast::Feature.new(comment.build, tags.build, header.text_value, feature_elements.build)
+          end
+        end
+      end
+
+      def _nt_feature
+        start_index = index
+        if node_cache[:feature].has_key?(index)
+          cached = node_cache[:feature][index]
+          @index = cached.interval.end if cached
+          return cached
+        end
+
+        i0, s0 = index, []
+        r1 = _nt_white
+        s0 << r1
+        if r1
+          r2 = _nt_comment
+          s0 << r2
+          if r2
+            r3 = _nt_white
+            s0 << r3
+            if r3
+              r4 = _nt_tags
+              s0 << r4
+              if r4
+                r5 = _nt_white
+                s0 << r5
+                if r5
+                  s6, i6 = [], index
+                  loop do
+                    i7, s7 = index, []
+                    i8 = index
+                    i9 = index
+                    r10 = _nt_scenario_outline
+                    if r10
+                      r9 = r10
+                    else
+                      r11 = _nt_scenario
+                      if r11
+                        r9 = r11
+                      else
+                        r12 = _nt_background
+                        if r12
+                          r9 = r12
+                        else
+                          self.index = i9
+                          r9 = nil
+                        end
+                      end
+                    end
+                    if r9
+                      r8 = nil
+                    else
+                      self.index = i8
+                      r8 = SyntaxNode.new(input, index...index)
+                    end
+                    s7 << r8
+                    if r8
+                      if index < input_length
+                        r13 = (SyntaxNode).new(input, index...(index + 1))
+                        @index += 1
+                      else
+                        terminal_parse_failure("any character")
+                        r13 = nil
+                      end
+                      s7 << r13
+                    end
+                    if s7.last
+                      r7 = (SyntaxNode).new(input, i7...index, s7)
+                      r7.extend(Feature0)
+                    else
+                      self.index = i7
+                      r7 = nil
+                    end
+                    if r7
+                      s6 << r7
+                    else
+                      break
+                    end
+                  end
+                  r6 = SyntaxNode.new(input, i6...index, s6)
+                  s0 << r6
+                  if r6
+                    r15 = _nt_background
+                    if r15
+                      r14 = r15
+                    else
+                      r14 = SyntaxNode.new(input, index...index)
+                    end
+                    s0 << r14
+                    if r14
+                      r16 = _nt_feature_elements
+                      s0 << r16
+                      if r16
+                        r18 = _nt_comment
+                        if r18
+                          r17 = r18
+                        else
+                          r17 = SyntaxNode.new(input, index...index)
+                        end
+                        s0 << r17
+                      end
+                    end
+                  end
+                end
+              end
+            end
+          end
+        end
+        if s0.last
+          r0 = (SyntaxNode).new(input, i0...index, s0)
+          r0.extend(Feature1)
+          r0.extend(Feature2)
+        else
+          self.index = i0
+          r0 = nil
+        end
+
+        node_cache[:feature][start_index] = r0
+
+        return r0
+      end
+
+      module Tags0
+        def tag
+          elements[0]
+        end
+
+      end
+
+      module Tags1
+        def white
+          elements[0]
+        end
+
+        def ts
+          elements[1]
+        end
+      end
+
+      module Tags2
+        def build
+          tag_names = ts.elements.map{|e| e.tag.tag_name.text_value}
+          Ast::Tags.new(ts.line, tag_names)
+        end
+      end
+
+      def _nt_tags
+        start_index = index
+        if node_cache[:tags].has_key?(index)
+          cached = node_cache[:tags][index]
+          @index = cached.interval.end if cached
+          return cached
+        end
+
+        i0, s0 = index, []
+        r1 = _nt_white
+        s0 << r1
+        if r1
+          s2, i2 = [], index
+          loop do
+            i3, s3 = index, []
+            r4 = _nt_tag
+            s3 << r4
+            if r4
+              s5, i5 = [], index
+              loop do
+                i6 = index
+                r7 = _nt_space
+                if r7
+                  r6 = r7
+                else
+                  r8 = _nt_eol
+                  if r8
+                    r6 = r8
+                  else
+                    self.index = i6
+                    r6 = nil
+                  end
+                end
+                if r6
+                  s5 << r6
+                else
+                  break
+                end
+              end
+              if s5.empty?
+                self.index = i5
+                r5 = nil
+              else
+                r5 = SyntaxNode.new(input, i5...index, s5)
+              end
+              s3 << r5
+            end
+            if s3.last
+              r3 = (SyntaxNode).new(input, i3...index, s3)
+              r3.extend(Tags0)
+            else
+              self.index = i3
+              r3 = nil
+            end
+            if r3
+              s2 << r3
+            else
+              break
+            end
+          end
+          r2 = SyntaxNode.new(input, i2...index, s2)
+          s0 << r2
+        end
+        if s0.last
+          r0 = (SyntaxNode).new(input, i0...index, s0)
+          r0.extend(Tags1)
+          r0.extend(Tags2)
+        else
+          self.index = i0
+          r0 = nil
+        end
+
+        node_cache[:tags][start_index] = r0
+
+        return r0
+      end
+
+      module Tag0
+        def tag_name
+          elements[1]
+        end
+      end
+
+      def _nt_tag
+        start_index = index
+        if node_cache[:tag].has_key?(index)
+          cached = node_cache[:tag][index]
+          @index = cached.interval.end if cached
+          return cached
+        end
+
+        i0, s0 = index, []
+        if input.index('@', index) == index
+          r1 = (SyntaxNode).new(input, index...(index + 1))
+          @index += 1
+        else
+          terminal_parse_failure('@')
+          r1 = nil
+        end
+        s0 << r1
+        if r1
+          s2, i2 = [], index
+          loop do
+            if input.index(Regexp.new('[^@\\n\\t ]'), index) == index
+              r3 = (SyntaxNode).new(input, index...(index + 1))
+              @index += 1
+            else
+              r3 = nil
+            end
+            if r3
+              s2 << r3
+            else
+              break
+            end
+          end
+          if s2.empty?
+            self.index = i2
+            r2 = nil
+          else
+            r2 = SyntaxNode.new(input, i2...index, s2)
+          end
+          s0 << r2
+        end
+        if s0.last
+          r0 = (SyntaxNode).new(input, i0...index, s0)
+          r0.extend(Tag0)
+        else
+          self.index = i0
+          r0 = nil
+        end
+
+        node_cache[:tag][start_index] = r0
+
+        return r0
+      end
+
+      module Comment0
+        def comment_line
+          elements[0]
+        end
+
+        def white
+          elements[1]
+        end
+      end
+
+      module Comment1
+        def build
+          Ast::Comment.new(text_value)
+        end
+      end
+
+      def _nt_comment
+        start_index = index
+        if node_cache[:comment].has_key?(index)
+          cached = node_cache[:comment][index]
+          @index = cached.interval.end if cached
+          return cached
+        end
+
+        s0, i0 = [], index
+        loop do
+          i1, s1 = index, []
+          r2 = _nt_comment_line
+          s1 << r2
+          if r2
+            r3 = _nt_white
+            s1 << r3
+          end
+          if s1.last
+            r1 = (SyntaxNode).new(input, i1...index, s1)
+            r1.extend(Comment0)
+          else
+            self.index = i1
+            r1 = nil
+          end
+          if r1
+            s0 << r1
+          else
+            break
+          end
+        end
+        r0 = SyntaxNode.new(input, i0...index, s0)
+        r0.extend(Comment1)
+
+        node_cache[:comment][start_index] = r0
+
+        return r0
+      end
+
+      module CommentLine0
+        def line_to_eol
+          elements[1]
+        end
+      end
+
+      def _nt_comment_line
+        start_index = index
+        if node_cache[:comment_line].has_key?(index)
+          cached = node_cache[:comment_line][index]
+          @index = cached.interval.end if cached
+          return cached
+        end
+
+        i0, s0 = index, []
+        if input.index('#', index) == index
+          r1 = (SyntaxNode).new(input, index...(index + 1))
+          @index += 1
+        else
+          terminal_parse_failure('#')
+          r1 = nil
+        end
+        s0 << r1
+        if r1
+          r2 = _nt_line_to_eol
+          s0 << r2
+        end
+        if s0.last
+          r0 = (SyntaxNode).new(input, i0...index, s0)
+          r0.extend(CommentLine0)
+        else
+          self.index = i0
+          r0 = nil
+        end
+
+        node_cache[:comment_line][start_index] = r0
+
+        return r0
+      end
+
+      module Background0
+        def comment
+          elements[0]
+        end
+
+        def white
+          elements[1]
+        end
+
+        def background_keyword
+          elements[2]
+        end
+
+        def steps
+          elements[5]
+        end
+      end
+
+      module Background1
+        def build
+          Ast::Background.new(
+            comment.build, 
+            background_keyword.line,
+            background_keyword.text_value, 
+            steps.build
+          )
+         end
+      end
+
+      def _nt_background
+        start_index = index
+        if node_cache[:background].has_key?(index)
+          cached = node_cache[:background][index]
+          @index = cached.interval.end if cached
+          return cached
+        end
+
+        i0, s0 = index, []
+        r1 = _nt_comment
+        s0 << r1
+        if r1
+          r2 = _nt_white
+          s0 << r2
+          if r2
+            r3 = _nt_background_keyword
+            s0 << r3
+            if r3
+              s4, i4 = [], index
+              loop do
+                r5 = _nt_space
+                if r5
+                  s4 << r5
+                else
+                  break
+                end
+              end
+              r4 = SyntaxNode.new(input, i4...index, s4)
+              s0 << r4
+              if r4
+                i6 = index
+                s7, i7 = [], index
+                loop do
+                  r8 = _nt_eol
+                  if r8
+                    s7 << r8
+                  else
+                    break
+                  end
+                end
+                if s7.empty?
+                  self.index = i7
+                  r7 = nil
+                else
+                  r7 = SyntaxNode.new(input, i7...index, s7)
+                end
+                if r7
+                  r6 = r7
+                else
+                  r9 = _nt_eof
+                  if r9
+                    r6 = r9
+                  else
+                    self.index = i6
+                    r6 = nil
+                  end
+                end
+                s0 << r6
+                if r6
+                  r10 = _nt_steps
+                  s0 << r10
+                end
+              end
+            end
+          end
+        end
+        if s0.last
+          r0 = (SyntaxNode).new(input, i0...index, s0)
+          r0.extend(Background0)
+          r0.extend(Background1)
+        else
+          self.index = i0
+          r0 = nil
+        end
+
+        node_cache[:background][start_index] = r0
+
+        return r0
+      end
+
+      module FeatureElements0
+        def build
+          elements.map{|s| s.build}
+        end
+      end
+
+      def _nt_feature_elements
+        start_index = index
+        if node_cache[:feature_elements].has_key?(index)
+          cached = node_cache[:feature_elements][index]
+          @index = cached.interval.end if cached
+          return cached
+        end
+
+        s0, i0 = [], index
+        loop do
+          i1 = index
+          r2 = _nt_scenario
+          if r2
+            r1 = r2
+          else
+            r3 = _nt_scenario_outline
+            if r3
+              r1 = r3
+            else
+              self.index = i1
+              r1 = nil
+            end
+          end
+          if r1
+            s0 << r1
+          else
+            break
+          end
+        end
+        r0 = SyntaxNode.new(input, i0...index, s0)
+        r0.extend(FeatureElements0)
+
+        node_cache[:feature_elements][start_index] = r0
+
+        return r0
+      end
+
+      module Scenario0
+        def comment
+          elements[0]
+        end
+
+        def tags
+          elements[1]
+        end
+
+        def white
+          elements[2]
+        end
+
+        def scenario_keyword
+          elements[3]
+        end
+
+        def name
+          elements[5]
+        end
+
+        def steps
+          elements[7]
+        end
+
+        def white
+          elements[8]
+        end
+      end
+
+      module Scenario1
+        def build
+          Ast::Scenario.new(
+            comment.build, 
+            tags.build,
+            scenario_keyword.line,
+            scenario_keyword.text_value, 
+            name.text_value, 
+            steps.build
+          )
+        end
+      end
+
+      def _nt_scenario
+        start_index = index
+        if node_cache[:scenario].has_key?(index)
+          cached = node_cache[:scenario][index]
+          @index = cached.interval.end if cached
+          return cached
+        end
+
+        i0, s0 = index, []
+        r1 = _nt_comment
+        s0 << r1
+        if r1
+          r2 = _nt_tags
+          s0 << r2
+          if r2
+            r3 = _nt_white
+            s0 << r3
+            if r3
+              r4 = _nt_scenario_keyword
+              s0 << r4
+              if r4
+                s5, i5 = [], index
+                loop do
+                  r6 = _nt_space
+                  if r6
+                    s5 << r6
+                  else
+                    break
+                  end
+                end
+                r5 = SyntaxNode.new(input, i5...index, s5)
+                s0 << r5
+                if r5
+                  r7 = _nt_line_to_eol
+                  s0 << r7
+                  if r7
+                    i8 = index
+                    r9 = _nt_white
+                    if r9
+                      r8 = r9
+                    else
+                      r10 = _nt_eof
+                      if r10
+                        r8 = r10
+                      else
+                        self.index = i8
+                        r8 = nil
+                      end
+                    end
+                    s0 << r8
+                    if r8
+                      r11 = _nt_steps
+                      s0 << r11
+                      if r11
+                        r12 = _nt_white
+                        s0 << r12
+                      end
+                    end
+                  end
+                end
+              end
+            end
+          end
+        end
+        if s0.last
+          r0 = (SyntaxNode).new(input, i0...index, s0)
+          r0.extend(Scenario0)
+          r0.extend(Scenario1)
+        else
+          self.index = i0
+          r0 = nil
+        end
+
+        node_cache[:scenario][start_index] = r0
+
+        return r0
+      end
+
+      module ScenarioOutline0
+        def comment
+          elements[0]
+        end
+
+        def tags
+          elements[1]
+        end
+
+        def white
+          elements[2]
+        end
+
+        def scenario_outline_keyword
+          elements[3]
+        end
+
+        def name
+          elements[5]
+        end
+
+        def white
+          elements[6]
+        end
+
+        def steps
+          elements[7]
+        end
+
+        def examples_sections
+          elements[8]
+        end
+
+        def white
+          elements[9]
+        end
+      end
+
+      module ScenarioOutline1
+        def build
+          Ast::ScenarioOutline.new(
+            comment.build, 
+            tags.build,
+            scenario_outline_keyword.line, 
+            scenario_outline_keyword.text_value, 
+            name.text_value, 
+            steps.build, 
+            examples_sections.build
+          )
+        end
+      end
+
+      def _nt_scenario_outline
+        start_index = index
+        if node_cache[:scenario_outline].has_key?(index)
+          cached = node_cache[:scenario_outline][index]
+          @index = cached.interval.end if cached
+          return cached
+        end
+
+        i0, s0 = index, []
+        r1 = _nt_comment
+        s0 << r1
+        if r1
+          r2 = _nt_tags
+          s0 << r2
+          if r2
+            r3 = _nt_white
+            s0 << r3
+            if r3
+              r4 = _nt_scenario_outline_keyword
+              s0 << r4
+              if r4
+                s5, i5 = [], index
+                loop do
+                  r6 = _nt_space
+                  if r6
+                    s5 << r6
+                  else
+                    break
+                  end
+                end
+                r5 = SyntaxNode.new(input, i5...index, s5)
+                s0 << r5
+                if r5
+                  r7 = _nt_line_to_eol
+                  s0 << r7
+                  if r7
+                    r8 = _nt_white
+                    s0 << r8
+                    if r8
+                      r9 = _nt_steps
+                      s0 << r9
+                      if r9
+                        r10 = _nt_examples_sections
+                        s0 << r10
+                        if r10
+                          r11 = _nt_white
+                          s0 << r11
+                        end
+                      end
+                    end
+                  end
+                end
+              end
+            end
+          end
+        end
+        if s0.last
+          r0 = (SyntaxNode).new(input, i0...index, s0)
+          r0.extend(ScenarioOutline0)
+          r0.extend(ScenarioOutline1)
+        else
+          self.index = i0
+          r0 = nil
+        end
+
+        node_cache[:scenario_outline][start_index] = r0
+
+        return r0
+      end
+
+      module Steps0
+        def build
+          elements.map{|e| e.build}
+        end
+      end
+
+      def _nt_steps
+        start_index = index
+        if node_cache[:steps].has_key?(index)
+          cached = node_cache[:steps][index]
+          @index = cached.interval.end if cached
+          return cached
+        end
+
+        s0, i0 = [], index
+        loop do
+          r1 = _nt_step
+          if r1
+            s0 << r1
+          else
+            break
+          end
+        end
+        r0 = SyntaxNode.new(input, i0...index, s0)
+        r0.extend(Steps0)
+
+        node_cache[:steps][start_index] = r0
+
+        return r0
+      end
+
+      module Step0
+        def comment
+          elements[0]
+        end
+
+        def step_keyword
+          elements[2]
+        end
+
+        def name
+          elements[4]
+        end
+
+        def multi
+          elements[6]
+        end
+
+        def white
+          elements[7]
+        end
+      end
+
+      module Step1
+        def build
+          if multi.respond_to?(:build)
+            Ast::Step.new(step_keyword.line, step_keyword.text_value, name.text_value.strip, multi.build)
+          else
+            Ast::Step.new(step_keyword.line, step_keyword.text_value, name.text_value.strip)
+          end
+        end
+      end
+
+      def _nt_step
+        start_index = index
+        if node_cache[:step].has_key?(index)
+          cached = node_cache[:step][index]
+          @index = cached.interval.end if cached
+          return cached
+        end
+
+        i0, s0 = index, []
+        r1 = _nt_comment
+        s0 << r1
+        if r1
+          s2, i2 = [], index
+          loop do
+            r3 = _nt_space
+            if r3
+              s2 << r3
+            else
+              break
+            end
+          end
+          r2 = SyntaxNode.new(input, i2...index, s2)
+          s0 << r2
+          if r2
+            r4 = _nt_step_keyword
+            s0 << r4
+            if r4
+              s5, i5 = [], index
+              loop do
+                r6 = _nt_space
+                if r6
+                  s5 << r6
+                else
+                  break
+                end
+              end
+              r5 = SyntaxNode.new(input, i5...index, s5)
+              s0 << r5
+              if r5
+                r7 = _nt_line_to_eol
+                s0 << r7
+                if r7
+                  i8 = index
+                  s9, i9 = [], index
+                  loop do
+                    r10 = _nt_eol
+                    if r10
+                      s9 << r10
+                    else
+                      break
+                    end
+                  end
+                  if s9.empty?
+                    self.index = i9
+                    r9 = nil
+                  else
+                    r9 = SyntaxNode.new(input, i9...index, s9)
+                  end
+                  if r9
+                    r8 = r9
+                  else
+                    r11 = _nt_eof
+                    if r11
+                      r8 = r11
+                    else
+                      self.index = i8
+                      r8 = nil
+                    end
+                  end
+                  s0 << r8
+                  if r8
+                    r13 = _nt_multiline_arg
+                    if r13
+                      r12 = r13
+                    else
+                      r12 = SyntaxNode.new(input, index...index)
+                    end
+                    s0 << r12
+                    if r12
+                      r14 = _nt_white
+                      s0 << r14
+                    end
+                  end
+                end
+              end
+            end
+          end
+        end
+        if s0.last
+          r0 = (SyntaxNode).new(input, i0...index, s0)
+          r0.extend(Step0)
+          r0.extend(Step1)
+        else
+          self.index = i0
+          r0 = nil
+        end
+
+        node_cache[:step][start_index] = r0
+
+        return r0
+      end
+
+      module ExamplesSections0
+        def build
+          elements.map{|e| e.build}
+        end
+      end
+
+      def _nt_examples_sections
+        start_index = index
+        if node_cache[:examples_sections].has_key?(index)
+          cached = node_cache[:examples_sections][index]
+          @index = cached.interval.end if cached
+          return cached
+        end
+
+        s0, i0 = [], index
+        loop do
+          r1 = _nt_examples
+          if r1
+            s0 << r1
+          else
+            break
+          end
+        end
+        r0 = SyntaxNode.new(input, i0...index, s0)
+        r0.extend(ExamplesSections0)
+
+        node_cache[:examples_sections][start_index] = r0
+
+        return r0
+      end
+
+      module Examples0
+        def examples_keyword
+          elements[1]
+        end
+
+        def name
+          elements[3]
+        end
+
+        def eol
+          elements[4]
+        end
+
+        def table
+          elements[5]
+        end
+
+        def white
+          elements[6]
+        end
+      end
+
+      module Examples1
+        def build
+          [examples_keyword.line, examples_keyword.text_value, name.text_value, table.raw]
+        end
+      end
+
+      def _nt_examples
+        start_index = index
+        if node_cache[:examples].has_key?(index)
+          cached = node_cache[:examples][index]
+          @index = cached.interval.end if cached
+          return cached
+        end
+
+        i0, s0 = index, []
+        s1, i1 = [], index
+        loop do
+          r2 = _nt_space
+          if r2
+            s1 << r2
+          else
+            break
+          end
+        end
+        r1 = SyntaxNode.new(input, i1...index, s1)
+        s0 << r1
+        if r1
+          r3 = _nt_examples_keyword
+          s0 << r3
+          if r3
+            s4, i4 = [], index
+            loop do
+              r5 = _nt_space
+              if r5
+                s4 << r5
+              else
+                break
+              end
+            end
+            r4 = SyntaxNode.new(input, i4...index, s4)
+            s0 << r4
+            if r4
+              r7 = _nt_line_to_eol
+              if r7
+                r6 = r7
+              else
+                r6 = SyntaxNode.new(input, index...index)
+              end
+              s0 << r6
+              if r6
+                r8 = _nt_eol
+                s0 << r8
+                if r8
+                  r9 = _nt_table
+                  s0 << r9
+                  if r9
+                    r10 = _nt_white
+                    s0 << r10
+                  end
+                end
+              end
+            end
+          end
+        end
+        if s0.last
+          r0 = (SyntaxNode).new(input, i0...index, s0)
+          r0.extend(Examples0)
+          r0.extend(Examples1)
+        else
+          self.index = i0
+          r0 = nil
+        end
+
+        node_cache[:examples][start_index] = r0
+
+        return r0
+      end
+
+      def _nt_multiline_arg
+        start_index = index
+        if node_cache[:multiline_arg].has_key?(index)
+          cached = node_cache[:multiline_arg][index]
+          @index = cached.interval.end if cached
+          return cached
+        end
+
+        i0 = index
+        r1 = _nt_table
+        if r1
+          r0 = r1
+        else
+          r2 = _nt_py_string
+          if r2
+            r0 = r2
+          else
+            self.index = i0
+            r0 = nil
+          end
+        end
+
+        node_cache[:multiline_arg][start_index] = r0
+
+        return r0
+      end
+
+      module LineToEol0
+      end
+
+      def _nt_line_to_eol
+        start_index = index
+        if node_cache[:line_to_eol].has_key?(index)
+          cached = node_cache[:line_to_eol][index]
+          @index = cached.interval.end if cached
+          return cached
+        end
+
+        s0, i0 = [], index
+        loop do
+          i1, s1 = index, []
+          i2 = index
+          r3 = _nt_eol
+          if r3
+            r2 = nil
+          else
+            self.index = i2
+            r2 = SyntaxNode.new(input, index...index)
+          end
+          s1 << r2
+          if r2
+            if index < input_length
+              r4 = (SyntaxNode).new(input, index...(index + 1))
+              @index += 1
+            else
+              terminal_parse_failure("any character")
+              r4 = nil
+            end
+            s1 << r4
+          end
+          if s1.last
+            r1 = (SyntaxNode).new(input, i1...index, s1)
+            r1.extend(LineToEol0)
+          else
+            self.index = i1
+            r1 = nil
+          end
+          if r1
+            s0 << r1
+          else
+            break
+          end
+        end
+        r0 = SyntaxNode.new(input, i0...index, s0)
+
+        node_cache[:line_to_eol][start_index] = r0
+
+        return r0
+      end
+
+      module PyString0
+      end
+
+      module PyString1
+        def open_py_string
+          elements[0]
+        end
+
+        def s
+          elements[1]
+        end
+
+        def close_py_string
+          elements[2]
+        end
+      end
+
+      module PyString2
+        def build
+          Ast::PyString.new(open_py_string.line, close_py_string.line, s.text_value, open_py_string.indentation)
+        end
+      end
+
+      def _nt_py_string
+        start_index = index
+        if node_cache[:py_string].has_key?(index)
+          cached = node_cache[:py_string][index]
+          @index = cached.interval.end if cached
+          return cached
+        end
+
+        i0, s0 = index, []
+        r1 = _nt_open_py_string
+        s0 << r1
+        if r1
+          s2, i2 = [], index
+          loop do
+            i3, s3 = index, []
+            i4 = index
+            r5 = _nt_close_py_string
+            if r5
+              r4 = nil
+            else
+              self.index = i4
+              r4 = SyntaxNode.new(input, index...index)
+            end
+            s3 << r4
+            if r4
+              if index < input_length
+                r6 = (SyntaxNode).new(input, index...(index + 1))
+                @index += 1
+              else
+                terminal_parse_failure("any character")
+                r6 = nil
+              end
+              s3 << r6
+            end
+            if s3.last
+              r3 = (SyntaxNode).new(input, i3...index, s3)
+              r3.extend(PyString0)
+            else
+              self.index = i3
+              r3 = nil
+            end
+            if r3
+              s2 << r3
+            else
+              break
+            end
+          end
+          r2 = SyntaxNode.new(input, i2...index, s2)
+          s0 << r2
+          if r2
+            r7 = _nt_close_py_string
+            s0 << r7
+          end
+        end
+        if s0.last
+          r0 = (SyntaxNode).new(input, i0...index, s0)
+          r0.extend(PyString1)
+          r0.extend(PyString2)
+        else
+          self.index = i0
+          r0 = nil
+        end
+
+        node_cache[:py_string][start_index] = r0
+
+        return r0
+      end
+
+      module OpenPyString0
+        def white
+          elements[0]
+        end
+
+        def eol
+          elements[3]
+        end
+      end
+
+      module OpenPyString1
+        def indentation
+          white.text_value.length
+        end
+
+        def line
+          white.line
+        end
+      end
+
+      def _nt_open_py_string
+        start_index = index
+        if node_cache[:open_py_string].has_key?(index)
+          cached = node_cache[:open_py_string][index]
+          @index = cached.interval.end if cached
+          return cached
+        end
+
+        i0, s0 = index, []
+        r1 = _nt_white
+        s0 << r1
+        if r1
+          if input.index('"""', index) == index
+            r2 = (SyntaxNode).new(input, index...(index + 3))
+            @index += 3
+          else
+            terminal_parse_failure('"""')
+            r2 = nil
+          end
+          s0 << r2
+          if r2
+            s3, i3 = [], index
+            loop do
+              r4 = _nt_space
+              if r4
+                s3 << r4
+              else
+                break
+              end
+            end
+            r3 = SyntaxNode.new(input, i3...index, s3)
+            s0 << r3
+            if r3
+              r5 = _nt_eol
+              s0 << r5
+            end
+          end
+        end
+        if s0.last
+          r0 = (SyntaxNode).new(input, i0...index, s0)
+          r0.extend(OpenPyString0)
+          r0.extend(OpenPyString1)
+        else
+          self.index = i0
+          r0 = nil
+        end
+
+        node_cache[:open_py_string][start_index] = r0
+
+        return r0
+      end
+
+      module ClosePyString0
+        def eol
+          elements[0]
+        end
+
+        def quotes
+          elements[2]
+        end
+
+        def white
+          elements[3]
+        end
+      end
+
+      module ClosePyString1
+        def line
+          quotes.line
+        end
+      end
+
+      def _nt_close_py_string
+        start_index = index
+        if node_cache[:close_py_string].has_key?(index)
+          cached = node_cache[:close_py_string][index]
+          @index = cached.interval.end if cached
+          return cached
+        end
+
+        i0, s0 = index, []
+        r1 = _nt_eol
+        s0 << r1
+        if r1
+          s2, i2 = [], index
+          loop do
+            r3 = _nt_space
+            if r3
+              s2 << r3
+            else
+              break
+            end
+          end
+          r2 = SyntaxNode.new(input, i2...index, s2)
+          s0 << r2
+          if r2
+            if input.index('"""', index) == index
+              r4 = (SyntaxNode).new(input, index...(index + 3))
+              @index += 3
+            else
+              terminal_parse_failure('"""')
+              r4 = nil
+            end
+            s0 << r4
+            if r4
+              r5 = _nt_white
+              s0 << r5
+            end
+          end
+        end
+        if s0.last
+          r0 = (SyntaxNode).new(input, i0...index, s0)
+          r0.extend(ClosePyString0)
+          r0.extend(ClosePyString1)
+        else
+          self.index = i0
+          r0 = nil
+        end
+
+        node_cache[:close_py_string][start_index] = r0
+
+        return r0
+      end
+
+      def _nt_white
+        start_index = index
+        if node_cache[:white].has_key?(index)
+          cached = node_cache[:white][index]
+          @index = cached.interval.end if cached
+          return cached
+        end
+
+        s0, i0 = [], index
+        loop do
+          i1 = index
+          r2 = _nt_space
+          if r2
+            r1 = r2
+          else
+            r3 = _nt_eol
+            if r3
+              r1 = r3
+            else
+              self.index = i1
+              r1 = nil
+            end
+          end
+          if r1
+            s0 << r1
+          else
+            break
+          end
+        end
+        r0 = SyntaxNode.new(input, i0...index, s0)
+
+        node_cache[:white][start_index] = r0
+
+        return r0
+      end
+
+    end
+
+    class FeatureParser < Treetop::Runtime::CompiledParser
+      include Feature
+    end
+
+  end
+end
\ No newline at end of file