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Move GetBytesReadable to Core, add tests

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This commit is contained in:
Matt Nadareski
2025-04-14 20:45:02 -04:00
parent 44f96e7ef0
commit d45f903d41
5 changed files with 86 additions and 59 deletions
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56
SabreTools.Core/Tools/NumberHelper.cs
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@@ -170,6 +170,62 @@ namespace SabreTools.Core.Tools
return true;
}
/// <summary>
/// Returns the human-readable file size for an arbitrary, 64-bit file size
/// The default format is "0.### XB", e.g. "4.2 KB" or "1.434 GB".
/// </summary>
/// <link>http://www.somacon.com/p576.php</link>
/// <remarks>This uses 1024-byte partitions, not 1000-byte</remarks>
public static string GetBytesReadable(long input)
{
// Get absolute value
long absolute_i = (input < 0 ? -input : input);
// Determine the suffix and readable value
string suffix;
double readable;
if (absolute_i >= 0x1000_0000_0000_0000) // Exabyte
{
suffix = "EB";
readable = (input >> 50);
}
else if (absolute_i >= 0x4_0000_0000_0000) // Petabyte
{
suffix = "PB";
readable = (input >> 40);
}
else if (absolute_i >= 0x100_0000_0000) // Terabyte
{
suffix = "TB";
readable = (input >> 30);
}
else if (absolute_i >= 0x4000_0000) // Gigabyte
{
suffix = "GB";
readable = (input >> 20);
}
else if (absolute_i >= 0x10_0000) // Megabyte
{
suffix = "MB";
readable = (input >> 10);
}
else if (absolute_i >= 0x400) // Kilobyte
{
suffix = "KB";
readable = input;
}
else
{
return input.ToString("0 B"); // Byte
}
// Divide by 1024 to get fractional value
readable /= 1024;
// Return formatted number with suffix
return readable.ToString("0.### ") + suffix;
}
#if NETFRAMEWORK || NETCOREAPP3_1 || NET5_0 || NET6_0
/// <summary>
/// Indicates whether a character is categorized as an ASCII hexademical digit.