29 #define	IESC	L'\033'
30 #define	SO	L'\016'
31 #define	SI	L'\017'
32 #define	HFWD	L'9'
33 #define	HREV	L'8'
34 #define	FREV	L'7'
173 		case L'\b':  in ul_filter()
178 		case L'\t':  in ul_filter()
184 		case L'\r':  in ul_filter()
235 		case L'_':  in ul_filter()
242 		case L' ':  in ul_filter()
248 		case L'\n':  in ul_filter()
253 			if (c < L' ')	/* non printing */  in ul_filter()
255 			if (obuf[col].c_char == L'\0') {  in ul_filter()
261 			} else if (obuf[col].c_char == L'_') {  in ul_filter()
297 		if (obuf[i].c_char == L'\0') {  in flushln()
301 				outc(L' ');  in flushln()
310 	(void) putwchar(L'\n');  in flushln()
372 			*cp++ = L' ';  in overstrike()
374 				*cp++ = L' ';  in overstrike()
380 			*cp++ = L'_';  in overstrike()
382 				*cp++ = L'_';  in overstrike()
393 	(void) putwchar(L'\r');  in overstrike()
394 	for (*cp = L' '; *cp == L' '; cp--)  in overstrike()
395 		*cp = L'\0';  in overstrike()
399 		(void) putwchar(L'\r');  in overstrike()
401 			(void) putwchar(*cp == L'_' ? L' ' : *cp);  in overstrike()
402 		(void) putwchar(L'\r');  in overstrike()
404 			(void) putwchar(*cp == L'_' ? L' ' : *cp);  in overstrike()
469 	for (*cp = L' '; *cp == L' '; cp--)  in iattr()
470 		*cp = L'\0';  in iattr()
473 	(void) putwchar(L'\n');  in iattr()