box_chars_1
if (PRESENT(box_chars_1)) {
append_acs0(&result, 'l', box_chars_1, 0); /* ACS_ULCORNER */
append_acs0(&result, 'q', box_chars_1, 1); /* ACS_HLINE */
append_acs0(&result, 'k', box_chars_1, 2); /* ACS_URCORNER */
append_acs0(&result, 'x', box_chars_1, 3); /* ACS_VLINE */
append_acs0(&result, 'j', box_chars_1, 4); /* ACS_LRCORNER */
append_acs0(&result, 'm', box_chars_1, 5); /* ACS_LLCORNER */
append_acs0(&result, 'w', box_chars_1, 6); /* ACS_TTEE */
append_acs0(&result, 'u', box_chars_1, 7); /* ACS_RTEE */
append_acs0(&result, 'v', box_chars_1, 8); /* ACS_BTEE */
append_acs0(&result, 't', box_chars_1, 9); /* ACS_LTEE */
append_acs0(&result, 'n', box_chars_1, 10); /* ACS_PLUS */
box_chars_1 = ABSENT_STRING;