lib/rley/parser/parse_forest_factory.rb in rley-0.4.07 vs lib/rley/parser/parse_forest_factory.rb in rley-0.4.08

@@ -1,50 +1,14 @@
-require_relative 'parse_walker_factory'
+require_relative 'parse_rep_creator'
 require_relative 'parse_forest_builder'
 
 module Rley # This module is used as a namespace
   module Parser # This module is used as a namespace
     # Utility class that helps to create a ParseForest from
     # a given Parsing object.
-    class ParseForestFactory
-      # Link to Parsing object (= results of recognizer)
-      attr_reader(:parsing)
+    class ParseForestFactory < ParseRepCreator
 
-
-      def initialize(aParsingResult)
-        @parsing = aParsingResult
-      end
-
-      # Factory that produces the parse forest
-      def build_parse_forest()
-        a_walker = walker(parsing)
-        a_builder = builder(parsing)
-
-        begin
-          loop do
-            event = a_walker.next
-            # puts "EVENT #{event[0]} #{event[1]}"
-            a_builder.receive_event(*event)
-          end
-        rescue StopIteration
-          # Do nothing
-        end
-
-        return a_builder.forest
-      end
-
-
-      private
-
-      # Create a Parsing walker, that is, an object
-      # that will iterate over the relevant nodes (= parsing entries)
-      # of a GFGParsing
-      def walker(aParseResult)
-        walker_factory = ParseWalkerFactory.new
-        accept_entry = aParseResult.accepting_entry
-        accept_index = aParseResult.chart.last_index
-        walker_factory.build_walker(accept_entry, accept_index)
-      end
+      protected
 
       # Create a Builder, that is, an object
       # that will create piece by piece the forest
       def builder(aParseResult)
         ParseForestBuilder.new(aParseResult.tokens)