Get the "main_minimal" example compiling

Author: lefticus

src/cons_expr_cli/main_minimal.cpp

@@ -1,17 +1,16 @@
 #include <cons_expr/cons_expr.hpp>
-
-
-#include <cons_expr/cons_expr.hpp>
-
+#include <cons_expr/utility.hpp>
+#include <iostream>
 
 constexpr auto evaluate(std::string_view input)
 {
   lefticus::cons_expr evaluator;
 
-  const auto result = evaluator.parse(input).first.value;
+  const auto [parse_result, remaining] = evaluator.parse(input);
+  const auto result = evaluator.sequence(evaluator.global_scope, parse_result);
 
-  return evaluator.sequence(evaluator.global_scope, *std::get_if<typename lefticus::cons_expr<>::list_type>(&result));
+  std::cout << "Result: " << lefticus::to_string(evaluator, false, result) << '\n';
 }
 
 
-int main(int argc, const char **argv) { evaluate(argv[0]); }
+int main(int argc, const char **argv) { evaluate(argv[1]); }