-
-/*
- * FIXME: Spanner *create_ligature_spanner () and virtual void
- * typeset_ligature (...) are abstract methods, such that we would
- * like to declare them abstract:
- *
- * virtual Spanner *create_ligature_spanner () = 0;
- * virtual void typeset_ligature (...) = 0;
- *
- * Unfortunately, clone_const_helper() (as expanded from the
- * TRANSLATOR_DECLARATIONS macro) requires this class to be
- * instantiatable, such that it may not have any abstract virtual
- * functions. As a workaround, the actually abstract methods are
- * implemented, but produce a programming_error whenever called. --jr
- */
-