arity-0 rules with rhs.size > 1

1 files changed, 2 insertions, 6 deletions

diff --git a/grammar.rb b/grammar.rb
index 02f4270..ac97fbd 100644
--- a/grammar.rb
+++ b/grammar.rb
@@ -1,5 +1,6 @@
 require 'nlp_ruby'
 
+
 class Terminal
   attr_accessor :w
 
@@ -44,7 +45,7 @@ class Rule
   end
 
   def to_s
-    "#{lhs} -> #{rhs.map{|i|i.to_s}.join ' '} (#{arity}) (#{@span.left}, #{@span.right})"
+    "#{lhs} -> #{rhs.map{|i|i.to_s}.join ' '} a:#{arity} (#{@span.left}, #{@span.right})"
   end
 
   def arity
@@ -89,8 +90,3 @@ class Grammar
   end
 end
 
-
-
-
-
-