// Copyright 2016 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

package os

// Export for testing.

var (
	AddExtendedPrefix  = addExtendedPrefix
	NewConsoleFile     = newConsoleFile
	CommandLineToArgv  = commandLineToArgv
	AllowReadDirFileID = &allowReadDirFileID

func fixLongPath(path string) string {
	if windows.CanUseLongPaths {
		return path
	}
	return addExtendedPrefix(path)
}

// addExtendedPrefix adds the extended path prefix (\\?\) to path.
func addExtendedPrefix(path string) string {
	if len(path) >= 4 {
		if path[:4] == `\??\` {
			// Already extended with \??\
			return path
		}

		want = strings.ReplaceAll(want, "cwd", cwd)

		got := os.AddExtendedPrefix(in)
		got = strings.ToLower(got)
		if got != want {
			in = strings.ReplaceAll(in, veryLong, "long")
			got = strings.ReplaceAll(got, veryLong, "long")
			want = strings.ReplaceAll(want, veryLong, "long")
			t.Errorf("addExtendedPrefix(%#q) = %#q; want %#q", in, got, want)
		}
	}
}