refactor: delete exception usages & game options

1 files changed, 21 insertions, 2 deletions

diff --git a/src/conversion.hpp b/src/conversion.hpp
index 4ae5b7c..0bdf82d 100644
--- a/src/conversion.hpp
+++ b/src/conversion.hpp
@@ -1,13 +1,32 @@
 #pragma once
 
+#include <ctre.hpp>
 #include <string_view>
 
 constexpr unsigned int NUMBER_BASE = 10U;
 
+template <typename ResultType>
+class ConversionResult
+{
+public:
+	explicit ConversionResult(const bool &success_, const ResultType &result_,
+							  const std::string_view &fail_reason_ = "")
+		: success(success_), result(result_), fail_reason(fail_reason_)
+	{
+	}
+
+	const bool &success;
+	const ResultType &result;
+	const std::string_view &fail_reason;
+};
+
+static constexpr auto IS_VALID_UINT = ctll::fixed_string("^[0-9]+$");
+static constexpr auto IS_UINT_IN_RANGE = ctll::fixed_string("^[0-9]{1,19}$");
+
 /**
  * Converts a string to a unsigned integer.
  *
  * @param str A string that possibly is a unsigned integer
- * @returns A unsigned integer
+ * @returns A conversion result
  */
-unsigned int str_to_uint(const std::string_view &str);
+ConversionResult<unsigned int> str_to_uint(const std::string_view &str);