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Add nullable context to SabreTools.IO

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This commit is contained in:
Matt Nadareski
2023-08-10 15:02:40 -04:00
parent fb81fd0243
commit 7bb0ba245d
22 changed files with 356 additions and 174 deletions
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13
SabreTools.IO/IOExtensions.cs
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@@ -59,6 +59,9 @@ namespace SabreTools.IO
file.Read(bom, 0, 4);
file.Dispose();
// Disable warning about UTF7 usage
#pragma warning disable SYSLIB0001
// Analyze the BOM
if (bom[0] == 0x2b && bom[1] == 0x2f && bom[2] == 0x76) return Encoding.UTF7;
if (bom[0] == 0xef && bom[1] == 0xbb && bom[2] == 0xbf) return Encoding.UTF8;
@@ -66,6 +69,8 @@ namespace SabreTools.IO
if (bom[0] == 0xfe && bom[1] == 0xff) return Encoding.BigEndianUnicode; //UTF-16BE
if (bom[0] == 0 && bom[1] == 0 && bom[2] == 0xfe && bom[3] == 0xff) return Encoding.UTF32;
return Encoding.Default;
#pragma warning restore SYSLIB0001
}
catch
{
@@ -78,14 +83,14 @@ namespace SabreTools.IO
/// </summary>
/// <param name="path">Path to get extension from</param>
/// <returns>Extension, if possible</returns>
public static string GetNormalizedExtension(this string path)
public static string? GetNormalizedExtension(this string? path)
{
// Check null or empty first
if (string.IsNullOrWhiteSpace(path))
return null;
// Get the extension from the path, if possible
string ext = Path.GetExtension(path)?.ToLowerInvariant();
string? ext = Path.GetExtension(path)?.ToLowerInvariant();
// Check if the extension is null or empty
if (string.IsNullOrWhiteSpace(ext))
@@ -96,13 +101,13 @@ namespace SabreTools.IO
return ext;
}
/// <summary>
/// Get all empty folders within a root folder
/// </summary>
/// <param name="root">Root directory to parse</param>
/// <returns>IEumerable containing all directories that are empty, an empty enumerable if the root is empty, null otherwise</returns>
public static List<string> ListEmpty(this string root)
public static List<string>? ListEmpty(this string? root)
{
// Check null or empty first
if (string.IsNullOrEmpty(root))