(define-g-flags "PangoShowFlags" pango-show-flags
  (:export t
   :type-initializer "pango_show_flags_get_type")
  (:none 0)
  (:spaces #.(ash 1 0))
  (:line-breaks #.(ash 1 1))
  (:ignorables #.(ash 1 2)))  

:none

No special treatment for invisible characters.

:spaces

Render spaces, tabs and newlines visibly.

:line-breaks

Render line breaks visibly.

:ignorables

Render default-ignorable Unicode characters visibly.