CLI2: Expand DOM references in single-token values

src/Lexer.cpp

@@ -1323,6 +1323,20 @@ bool Lexer::isAllDigits (const std::string& text)
   return text.find_first_not_of ("0123456789") == std::string::npos;
 }
 
+////////////////////////////////////////////////////////////////////////////////
+bool Lexer::isDOM (const std::string& text)
+{
+  Lexer lex (text);
+  int count = 0;
+  std::string token;
+  Lexer::Type type;
+  while (lex.token (token, type))
+    ++count;
+
+  return count == 1 &&
+         type == Lexer::Type::dom;
+}
+
 ////////////////////////////////////////////////////////////////////////////////
 // Full implementation of a quoted word.  Includes:
 //   '\''