pre_em
{ NULL, pre_em, post_font, NULL, NULL }, /* Ad */
{ NULL, pre_em, post_font, NULL, NULL }, /* Ar */
{ NULL, pre_em, post_font, NULL, NULL }, /* Pa */
{ NULL, pre_em, post_font, NULL, NULL }, /* Va */
{ NULL, pre_em, post_percent, NULL, NULL }, /* %B */
{ NULL, pre_em, post_percent, NULL, NULL }, /* %I */
{ NULL, pre_em, post_percent, NULL, NULL }, /* %J */
{ NULL, pre_em, post_font, NULL, NULL }, /* Em */
{ NULL, pre_em, post_font, NULL, NULL }, /* Sx */
{ NULL, pre_em, post_font, NULL, NULL }, /* Fr */
{ NULL, pre_em, post_font, NULL, NULL }, /* Mt */
if (mdoc_man_act(n->tok)->pre == pre_em)
static int pre_em(DECL_ARGS);