roff_getname
maclen = roff_getname(r, &cp, ln, ppos);
static size_t roff_getname(struct roff *, char **, int, int);
namesz = roff_getname(r, &cp, ln, ppos);
namesz = roff_getname(r, &cp, ln, ppos);
sz = roff_getname(r, &cp, ln, cp - v);
namesz = roff_getname(r, &string, ln, pos);
keysz = roff_getname(r, &val, ln, pos);
namesz = roff_getname(r, &cp, ln, pos);
namesz = roff_getname(r, &cp, ln, (int)(cp - buf->buf));
newsz = roff_getname(r, &oldn, ln, pos);
oldsz = roff_getname(r, &end, ln, oldn - buf->buf);
oldsz = roff_getname(r, &newn, ln, pos);
newsz = roff_getname(r, &end, ln, newn - buf->buf);