+size_t term_hspan(const struct roffsu *);
+size_t term_vspan(const struct roffsu *);
+
+enum termfont term_fonttop(struct termp *);
+const void *term_fontq(struct termp *);
+void term_fontpush(struct termp *, enum termfont);
+void term_fontpop(struct termp *);
+void term_fontpopq(struct termp *, const void *);
+void term_fontrepl(struct termp *, enum termfont);
+void term_fontlast(struct termp *);
+