diff --git a/src/Lexer.cpp b/src/Lexer.cpp
index 5bea2b8a3..e9efbee0d 100644
--- a/src/Lexer.cpp
+++ b/src/Lexer.cpp
@@ -1077,6 +1077,21 @@ bool Lexer::isWord (std::string& token, Lexer::Type& type)
   return false;
 }
 
+////////////////////////////////////////////////////////////////////////////////
+bool Lexer::isLiteral (const std::string& literal)
+{
+  if (_text.find (literal, _cursor) == 0 &&
+      (isEOS () ||
+       Lexer::isWhitespace (_text[_cursor + literal.length ()]) ||
+       Lexer::isSingleCharOperator (_text[_cursor + literal.length ()])))
+  {
+    _cursor += literal.length ();
+    return true;
+  }
+
+  return false;
+}
+
 ////////////////////////////////////////////////////////////////////////////////
 // Static
 std::string Lexer::typeToString (Lexer::Type type)
diff --git a/src/Lexer.h b/src/Lexer.h
index 5f21ce73e..18857ea61 100644
--- a/src/Lexer.h
+++ b/src/Lexer.h
@@ -104,6 +104,7 @@ public:
   bool isDOM          (std::string&, Lexer::Type&);
   bool isIdentifier   (std::string&, Lexer::Type&);
   bool isWord         (std::string&, Lexer::Type&);
+  bool isLiteral      (const std::string&);
 
 private:
   std::string _text;