refactor: delete exception usages & game options

1 files changed, 12 insertions, 20 deletions

diff --git a/src/conversion.cpp b/src/conversion.cpp
index 79b3587..5f9494f 100644
--- a/src/conversion.cpp
+++ b/src/conversion.cpp
@@ -3,39 +3,31 @@
 #include <climits>
 #include <stdexcept>
 
-unsigned int str_to_uint(const std::string_view &str)
+ConversionResult<unsigned int> str_to_uint(const std::string_view &str)
 {
-	if (str.at(0) == '-')
+	if (!ctre::match<IS_VALID_UINT>(str))
 	{
-		throw "Less than 0";
+		return ConversionResult(false, 0U, "Not a number");
 	}
 
-	std::size_t waste_pos = 0;
-
-	uint64_t num = 0;
-
-	try
-	{
-		num = std::stoul(str.data(), &waste_pos, NUMBER_BASE);
-	}
-	catch (const std::invalid_argument &exc)
+	if (!ctre::match<IS_UINT_IN_RANGE>(str))
 	{
-		throw "Not a number";
-	}
-	catch (const std::out_of_range &exc)
-	{
-		throw "Out of range";
+		return ConversionResult(false, 0U, "Out of range");
 	}
 
+	std::size_t waste_pos = 0;
+
+	auto num = std::stoul(str.data(), &waste_pos, NUMBER_BASE);
+
 	if (waste_pos != str.length())
 	{
-		throw "Not a number";
+		return ConversionResult(false, 0U, "Not a number");
 	}
 
 	if (num > UINT_MAX)
 	{
-		throw "Out of range";
+		return ConversionResult(false, 0U, "Out of range");
 	}
 
-	return static_cast<unsigned int>(num);
+	return ConversionResult(true, static_cast<unsigned int>(num));
 }