Function Slugify

internal/app/slug.go:20–33

Slugify converts a free-form name into a URL-safe slug. It lowercases, replaces runs of non-alphanumeric chars with dashes, strips leading/trailing dashes, and truncates to maxSlugWords words. Returns an error if the result is empty.

(name string)

// strips leading/trailing dashes, and truncates to maxSlugWords words.
// Returns an error if the result is empty.
func Slugify(name string) (string, error) {
	s := strings.ToLower(strings.TrimSpace(name))
	s = slugNonAlnum.ReplaceAllString(s, "-")
	s = strings.Trim(s, "-")
	if s == "" {
		return "", fmt.Errorf("cannot slugify %q: result is empty", name)
	}
	// Truncate to maxSlugWords dash-separated parts.
	parts := strings.SplitN(s, "-", maxSlugWords+1)
	if len(parts) > maxSlugWords {
		s = strings.Join(parts[:maxSlugWords], "-")
	}
	return s, nil
}