public void NormalizeDirectorySeparatorTests(string path, string expected)
{
string result = PathInternal.NormalizeDirectorySeparators(path);
Assert.Equal(expected, result);
if (string.Equals(path, expected, StringComparison.Ordinal))
{
Assert.Same(path, result);
}
}
public static string?GetDirectoryName(string?path)
{
if (path == null || PathInternal.IsEffectivelyEmpty(path.AsSpan()))
{
return(null);
}
int end = GetDirectoryNameOffset(path.AsSpan());
return(end >= 0 ? PathInternal.NormalizeDirectorySeparators(path.Substring(0, end)) : null);
}
public static string?GetDirectoryName(string?path) // TODO-NULLABLE: https://github.com/dotnet/roslyn/issues/26761
{
if (path == null || PathInternal.IsEffectivelyEmpty(path.AsSpan()))
{
return(null);
}
int end = GetDirectoryNameOffset(path.AsSpan());
return(end >= 0 ? PathInternal.NormalizeDirectorySeparators(path.Substring(0, end)) : null);
}
public static string?GetPathRoot(string?path)
{
if (PathInternal.IsEffectivelyEmpty(path.AsSpan()))
{
return(null);
}
ReadOnlySpan <char> result = GetPathRoot(path.AsSpan());
if (path !.Length == result.Length)
{
return(PathInternal.NormalizeDirectorySeparators(path));
}
return(PathInternal.NormalizeDirectorySeparators(result.ToString()));
}