+
+ SCM alist2 = SCM_EOL;
+ if (scm_hash_table_p (tab2) == SCM_BOOL_T)
+ {
+ // strip original-fonts/pango-font-descriptions
+ alist2 = scm_append (ly_alist_vals (ly_hash2alist (tab2)));
+
+ // strip size factors
+ alist2 = ly_alist_vals (alist2);
+ }
+
+ SCM alist = scm_append (scm_list_2 (alist1, alist2));
+ SCM font_list = SCM_EOL;
+ for (SCM s = alist; scm_is_pair (s); s = scm_cdr (s))
+ {
+ SCM entry = scm_car (s);
+
+ Font_metric *fm = unsmob_metrics (entry);
+
+ if (dynamic_cast<Modified_font_metric *> (fm)
+ || dynamic_cast<Pango_font *> (fm))
+ font_list = scm_cons (fm->self_scm (), font_list);
+ }
+
+ return font_list;
+}
\ No newline at end of file