+ if (scm_is_eq (head, ly_symbol2scm ("combine-stencil")))
+ {
+ SCM out = SCM_EOL;
+ SCM *tail = &out;
+
+ for (SCM x = scm_cdr (expr); scm_is_pair (x); x = scm_cdr (x))
+ {
+ SCM footnote = get_footnotes (scm_car (x));
+ if (!scm_is_null (footnote))
+ {
+ *tail = scm_cons (footnote, SCM_EOL);
+ tail = SCM_CDRLOC (*tail);
+ }
+ }
+ return scm_append (out);
+ }
+ if (scm_is_eq (head, ly_symbol2scm ("translate-stencil")))
+ return get_footnotes (scm_caddr (expr));
+
+ if (scm_is_eq (head, ly_symbol2scm ("footnote")))
+ return scm_list_1 (scm_cdr (expr));
+
+ return SCM_EOL;