107 	*plast,			/* Pointer to end of line		*/  variable
296 	if (plast - pfirst > MAXLINE) {  in center()
301 		tlast = plast + (&work[NCOLS] - pfirst);  in center()
303 		while (plast >= pfirst) *tlast-- = *plast--;  in center()
305 		plast = tptr;  in center()
309 		while (pfirst <= plast) *tfirst++ = *pfirst++;  in center()
310 		plast = --tfirst;  in center()
700 		pfirst = plast = &work[NCOLS];  in process()
701 		while (*plast != '\n') plast++;  in process()
712 				if (lp->param <= (plast - pfirst))  in process()
718 					    (plast - pfirst));  in process()
725 				if (lp->param <= (plast - pfirst))  in process()
731 					    (plast - pfirst));  in process()
754 		*++plast = '\0';  in process()
763 	if (plast - pfirst < effll) {  in append()
764 		n = n ? n : effll - (plast - pfirst);  in append()
765 		if (plast + n > wlast) center();  in append()
766 		while (n--) *plast++ = pachar;  in append()
767 		*plast = '\n';  in append()
776 	if (plast - pfirst < effll) {  in prepend()
777 		n = n ? n : effll - (plast - pfirst);  in prepend()
788 	if (plast - pfirst > effll) {  in begtrunc()
789 		n = n ? n : plast - pfirst - effll;  in begtrunc()
791 		if (pfirst >= plast)  in begtrunc()
792 			*(pfirst = plast = &work[NCOLS]) = '\n';  in begtrunc()
801 	if (plast - pfirst > effll) {  in endtrunc()
802 		n = n ? n : plast - pfirst - effll;  in endtrunc()
803 		plast -= n;  in endtrunc()
804 		if (pfirst >= plast)  in endtrunc()
805 			*(pfirst = plast = &work[NCOLS]) = '\n';  in endtrunc()
807 			*plast = '\n';  in endtrunc()
825 	while (pfirst <= plast) {  in inputtabs()
847 	plast = --tlast;  in inputtabs()
893 	for (i = 0; i <= savek; i++) *plast++ = savchr[i];  in sadd()
894 	*plast = '\n';  in sadd()
911 	while (pfirst <= plast) {  in outputtabs()
939 	plast = --tlast;  in outputtabs()