yorukot/superfile · error

file name cannot end with '%c.' or '%c..'

Error message

file name cannot end with '%c.' or '%c..'

What it means

Error "file name cannot end with '%c.' or '%c..'" thrown in yorukot/superfile.

Source

Thrown at src/internal/function.go:56

	// exclude timemachine on macOS
	if strings.HasPrefix(path, "/Volumes/.timemachine") {
		return false
	}

	// to filter out mounted partitions like /, /boot etc
	return strings.HasPrefix(path, "/mnt") ||
		strings.HasPrefix(path, "/media") ||
		strings.HasPrefix(path, "/run/media") ||
		strings.HasPrefix(path, "/Volumes")
}

func checkFileNameValidity(name string) error {
	switch {
	case name == ".", name == "..":
		return errors.New("file name cannot be '.' or '..'")
	case strings.HasSuffix(name, fmt.Sprintf("%c.", filepath.Separator)),
		strings.HasSuffix(name, fmt.Sprintf("%c..", filepath.Separator)):
		return fmt.Errorf("file name cannot end with '%c.' or '%c..'", filepath.Separator, filepath.Separator)
	default:
		return nil
	}
}

func renameIfDuplicate(destination string) (string, error) {
	if _, err := os.Stat(destination); os.IsNotExist(err) {
		return destination, nil
	} else if err != nil {
		return "", err
	}

	dir := filepath.Dir(destination)
	base := filepath.Base(destination)
	ext := filepath.Ext(base)
	name := base[:len(base)-len(ext)]

	// Extract base name without existing suffix

View on GitHub (pinned to b72f550bc6)

When it happens

Trigger: Thrown at src/internal/function.go:56 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of yorukot/superfile@b72f550bc6 (2026-09-01). Data as JSON: /api/errors/015376bd1cd6962e. Report an issue: GitHub.