[FEATURE] Allow easy access to a GRXML grammar's root rule element

adhearsion · Dec 20, 2011 · 7e0e9a5 · 7e0e9a5
1 parent 8c7d515
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diff --git a/lib/ruby_speech/grxml/grammar.rb b/lib/ruby_speech/grxml/grammar.rb
@@ -110,6 +110,10 @@ def tag_format=(s)
         write_attr :'tag-format', s
       end
 
+      def root_rule
+        children(:rule, :id => root).first
+      end
+
       def +(other)
         self.class.new(:base_uri => base_uri).tap do |new_grammar|
           (self.children + other.children).each do |child|

diff --git a/spec/ruby_speech/grxml/grammar_spec.rb b/spec/ruby_speech/grxml/grammar_spec.rb
@@ -151,6 +151,16 @@ module GRXML
           concat.to_s.should_not include('default')
         end
       end
+
+      it "should allow finding its root rule" do
+        grammar = GRXML::Grammar.new :root => 'foo'
+        bar = GRXML::Rule.new :id => 'bar'
+        grammar << bar
+        foo = GRXML::Rule.new :id => 'foo'
+        grammar << foo
+
+        grammar.root_rule.should == foo
+      end
     end # Grammar
   end # GRXML
 end # RubySpeech