osu/osu.Game/Beatmaps/Formats/Parsing.cs

53 lines
1.8 KiB
C#

// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
// See the LICENCE file in the repository root for full licence text.
using System;
using System.Globalization;
namespace osu.Game.Beatmaps.Formats
{
/// <summary>
/// Helper methods to parse from string to number and perform very basic validation.
/// </summary>
public static class Parsing
{
public const int MAX_COORDINATE_VALUE = 131072;
public const double MAX_PARSE_VALUE = int.MaxValue;
public static float ParseFloat(string input, float parseLimit = (float)MAX_PARSE_VALUE)
{
var output = float.Parse(input, CultureInfo.InvariantCulture);
if (output < -parseLimit) throw new OverflowException("Value is too low");
if (output > parseLimit) throw new OverflowException("Value is too high");
if (float.IsNaN(output)) throw new FormatException("Not a number");
return output;
}
public static double ParseDouble(string input, double parseLimit = MAX_PARSE_VALUE)
{
var output = double.Parse(input, CultureInfo.InvariantCulture);
if (output < -parseLimit) throw new OverflowException("Value is too low");
if (output > parseLimit) throw new OverflowException("Value is too high");
if (double.IsNaN(output)) throw new FormatException("Not a number");
return output;
}
public static int ParseInt(string input, int parseLimit = (int)MAX_PARSE_VALUE)
{
var output = int.Parse(input, CultureInfo.InvariantCulture);
if (output < -parseLimit) throw new OverflowException("Value is too low");
if (output > parseLimit) throw new OverflowException("Value is too high");
return output;
}
}
}