Add relu ranking function

1 files changed, 3 insertions, 1 deletions

diff --git a/searchlib/src/main/javacc/RankingExpressionParser.jj b/searchlib/src/main/javacc/RankingExpressionParser.jj
index 40dc31f13ae..c68fe6777db 100755
--- a/searchlib/src/main/javacc/RankingExpressionParser.jj
+++ b/searchlib/src/main/javacc/RankingExpressionParser.jj
@@ -103,6 +103,7 @@ TOKEN :
     <IN: "in"> |
     <SUM: "sum"> |
     <MATCH: "match"> |
+    <RELU: "relu"> |
     <IDENTIFIER: (["A"-"Z","a"-"z","0"-"9","_","@"](["A"-"Z","a"-"z","0"-"9","_","@","$"])*)>
 }
 
@@ -352,7 +353,8 @@ Function unaryFunctionName() : { }
     <CEIL>  { return Function.ceil;  } |
     <FABS>  { return Function.fabs;  } |
     <FLOOR> { return Function.floor; } |
-    <ISNAN> { return Function.isNan; }
+    <ISNAN> { return Function.isNan; } |
+    <RELU>  { return Function.relu; }
 }
 
 Function binaryFunctionName() : { }