1 files changed, 3 insertions, 1 deletions
diff --git a/decoder/oracle_bleu.h b/decoder/oracle_bleu.h
index d2c4715c..893e36ca 100644
--- a/decoder/oracle_bleu.h
+++ b/decoder/oracle_bleu.h
@@ -252,6 +252,8 @@ struct OracleBleu {
   }
 
   bool show_derivation;
+  int show_derivation_mask;
+
   template <class Filter>
   void kbest(int sent_id,Hypergraph const& forest,int k,std::ostream &kbest_out=std::cout,std::ostream &deriv_out=std::cerr) {
     using namespace std;
@@ -275,7 +277,7 @@ struct OracleBleu {
       if (show_derivation) {
         deriv_out<<"\nsent_id="<<sent_id<<"."<<i<<" ||| "; //where i is candidate #/k
         deriv_out<<log(d->score)<<"\n";
-        deriv_out<<kbest.derivation_tree(*d,true);
+        deriv_out<<kbest.derivation_tree(*d,true, show_derivation_mask);
         deriv_out<<"\n"<<flush;
       }
     }