diff --git a/src/Lexer.cpp b/src/Lexer.cpp
index e9efbee0d..69466465e 100644
--- a/src/Lexer.cpp
+++ b/src/Lexer.cpp
@@ -1092,6 +1092,16 @@ bool Lexer::isLiteral (const std::string& literal)
   return false;
 }
 
+////////////////////////////////////////////////////////////////////////////////
+bool Lexer::isOneOf (const std::vector <std::string>& options)
+{
+  for (auto& item : options)
+    if (isLiteral (item))
+      return true;
+
+  return false;
+}
+
 ////////////////////////////////////////////////////////////////////////////////
 // Static
 std::string Lexer::typeToString (Lexer::Type type)
diff --git a/src/Lexer.h b/src/Lexer.h
index 18857ea61..5042255c7 100644
--- a/src/Lexer.h
+++ b/src/Lexer.h
@@ -105,6 +105,7 @@ public:
   bool isIdentifier   (std::string&, Lexer::Type&);
   bool isWord         (std::string&, Lexer::Type&);
   bool isLiteral      (const std::string&);
+  bool isOneOf        (const std::vector <std::string>&);
 
 private:
   std::string _text;