104 	*pfirst,		/* Pointer to beginning of line 	*/  variable
294 	if (plast - pfirst > MAXLINE) {  in center()
298 	if (pfirst < &work[NCOLS]) {  in center()
299 		tlast = plast + (&work[NCOLS] - pfirst);  in center()
301 		while (plast >= pfirst) *tlast-- = *plast--;  in center()
302 		pfirst = ++tlast;  in center()
307 		while (pfirst <= plast) *tfirst++ = *pfirst++;  in center()
309 		pfirst = tptr;  in center()
698 		pfirst = plast = &work[NCOLS];  in process()
710 				if (lp->param <= (plast - pfirst))  in process()
716 					    (plast - pfirst));  in process()
723 				if (lp->param <= (plast - pfirst))  in process()
729 					    (plast - pfirst));  in process()
753 		(void) fputs(pfirst, stdout);  in process()
761 	if (plast - pfirst < effll) {  in append()
762 		n = n ? n : effll - (plast - pfirst);  in append()
774 	if (plast - pfirst < effll) {  in prepend()
775 		n = n ? n : effll - (plast - pfirst);  in prepend()
776 		if (pfirst - n < wfirst) center();  in prepend()
777 		while (n--) *--pfirst = pachar;  in prepend()
786 	if (plast - pfirst > effll) {  in begtrunc()
787 		n = n ? n : plast - pfirst - effll;  in begtrunc()
788 		pfirst += n;  in begtrunc()
789 		if (pfirst >= plast)  in begtrunc()
790 			*(pfirst = plast = &work[NCOLS]) = '\n';  in begtrunc()
799 	if (plast - pfirst > effll) {  in endtrunc()
800 		n = n ? n : plast - pfirst - effll;  in endtrunc()
802 		if (pfirst >= plast)  in endtrunc()
803 			*(pfirst = plast = &work[NCOLS]) = '\n';  in endtrunc()
823 	while (pfirst <= plast) {  in inputtabs()
825 		switch (c = *pfirst++) {  in inputtabs()
844 	pfirst = tfirst;  in inputtabs()
866 	c = pfirst;  in sstrip()
877 	c = pfirst;  in sstrip()
882 	pfirst = ++savec;		/* Point pfirst to char after tab */  in sstrip()
907 	tfirst = tlast = pfirst;  in outputtabs()
909 	while (pfirst <= plast) {  in outputtabs()
911 		switch (c = *pfirst++) {  in outputtabs()
927 				} while (*pfirst++ == ' ');  in outputtabs()
928 			pfirst--;  in outputtabs()
936 	pfirst = tfirst;  in outputtabs()