/// <summary>
/// Get directory name from path.
/// </summary>
/// <remarks>
/// Unlike <see cref="System.IO.Path.GetDirectoryName"/> it
/// doesn't check for invalid path characters,
/// doesn't strip any trailing directory separators (TODO: tomat),
/// doesn't recognize UNC structure \\computer-name\share\directory-name\file-name (TODO: tomat).
/// </remarks>
/// <returns>Prefix of path that represents a directory. </returns>
internal static string GetDirectoryName(string path)
{
int fileNameStart = FileNameUtilities.IndexOfFileName(path);
if (fileNameStart < 0)
{
return(null);
}
return(path.Substring(0, fileNameStart));
}
/// <summary>
/// Determines whether an assembly reference is considered an assembly file path or an assembly name.
/// used, for example, on values of /r and #r.
/// </summary>
internal static bool IsFilePath(string assemblyDisplayNameOrPath)
{
Debug.Assert(assemblyDisplayNameOrPath != null);
string extension = FileNameUtilities.GetExtension(assemblyDisplayNameOrPath);
return(string.Equals(extension, ".dll", StringComparison.OrdinalIgnoreCase) ||
string.Equals(extension, ".exe", StringComparison.OrdinalIgnoreCase) ||
assemblyDisplayNameOrPath.IndexOf(DirectorySeparatorChar) != -1 ||
assemblyDisplayNameOrPath.IndexOf(AltDirectorySeparatorChar) != -1);
}
internal static string GetFileName(string path)
{
return(FileNameUtilities.GetFileName(path));
}
internal static string RemoveExtension(string path)
{
return(FileNameUtilities.ChangeExtension(path, extension: null));
}
internal static string ChangeExtension(string path, string extension)
{
return(FileNameUtilities.ChangeExtension(path, extension));
}
internal static string GetExtension(string path)
{
return(FileNameUtilities.GetExtension(path));
}