173 addre(State_s *state, List_t* p, char* s)  in addre()  argument
181 	if (state->label)  in addre()
194 	if (state->words)  in addre()
198 		if (!(state->options & REG_AUGMENTED))  in addre()
202 		if (!(state->options & REG_AUGMENTED))  in addre()
210 	if (c = regcomp(&x->re, s, state->options|REG_MULTIPLE))  in addre()
217 		if (state->number || !regrecord(&x->re))  in addre()
218 			state->byline = 1;  in addre()
220 	else if (state->label || regcomb(&p->tail->re, &x->re))  in addre()
223 		if (!state->byline && (state->number || !state->label || !regrecord(&x->re)))  in addre()
224 			state->byline = 1;  in addre()
231 addstring(State_s *state, List_t* p, char* s)  in addstring()  argument
246 compile(State_s *state)  in compile()  argument
256 	for (x = state->pattern.head; x; x = x->next)  in compile()
257 		addre(state, &state->re, x->string);  in compile()
258 	for (x = state->file.head; x; x = x->next)  in compile()
284 				addre(state, &state->re, s);  in compile()
291 				addre(state, &state->re, s);  in compile()
298 	if (!state->re.head)  in compile()
317     State_s *state;  member
325 	State_s		*state = r_x->state;  in record()  local
329 	if (state->query || state->list)  in record()
331 	if (!state->count)  in record()
333 		if (state->prefix)  in record()
335 		if (state->label)  in record()
337 		if (state->pos)  in record()
338 			highlight(sfstdout, s, len + 1, state->pos[0].rm_so, state->pos[0].rm_eo);  in record()
346 execute(State_s *state, Sfio_t* input, char* name)  in execute()  argument
357 	if (state->buffer.noshare)  in execute()
359 	if (state->buffer.size)  in execute()
360 		sfsetbuf(input, state->buffer.base, state->buffer.size);  in execute()
367 	if (state->byline)  in execute()
388 			x = state->re.head;  in execute()
391 				if (!(result = regnexec(&x->re, s, len, state->posnum, state->pos, 0)))  in execute()
393 					if (!state->label)  in execute()
396 					if (state->query || state->list)  in execute()
398 					if (!state->count)  in execute()
400 						if (state->prefix)  in execute()
402 						if (state->number)  in execute()
405 						if (state->pos)  in execute()
406 							highlight(sfstdout, s, len + 1, state->pos[0].rm_so, state->pos[0].rm_eo);  in execute()
414 			if (!state->label && (x != 0) == state->match)  in execute()
417 				if (state->query || state->list)  in execute()
419 				if (!state->count)  in execute()
421 					if (state->prefix)  in execute()
423 					if (state->number)  in execute()
425 					if (state->pos)  in execute()
426 						highlight(sfstdout, s, len + 1, state->pos[0].rm_so, state->pos[0].rm_eo);  in execute()
493 				x = state->re.head;  in execute()
496 					record_handle r_x = { state, x };  in execute()
497 …if ((result = regrexec(&x->re, span, t - span, state->posnum, state->pos, state->options, '\n', (v…  in execute()
521 					x = state->re.head;  in execute()
524 						record_handle r_x = { state, x };  in execute()
525 …if ((result = regrexec(&x->re, s, t - s, state->posnum, state->pos, state->options, '\n', (void*)&…  in execute()
538 	if (state->byline && !state->label)  in execute()
540 		if (hits && state->list >= 0)  in execute()
541 			state->any = 1;  in execute()
542 		if (!state->query)  in execute()
544 			if (!state->list)  in execute()
546 				if (state->count)  in execute()
548 					if (state->count & 2)  in execute()
549 						state->hits += hits;  in execute()
552 						if (state->prefix)  in execute()
558 			else if ((hits != 0) == (state->list > 0))  in execute()
560 				if (state->list < 0)  in execute()
561 					state->any = 1;  in execute()
568 		x = state->re.head;  in execute()
571 			if (x->hits && state->list >= 0)  in execute()
573 				state->any = 1;  in execute()
574 				if (state->query)  in execute()
577 			if (!state->query)  in execute()
579 				if (!state->list)  in execute()
581 					if (state->count)  in execute()
583 						if (state->count & 2)  in execute()
586 							state->hits += x->hits;  in execute()
590 							if (state->prefix)  in execute()
592 							if (state->label)  in execute()
598 				else if ((x->hits != 0) == (state->list > 0))  in execute()
600 					if (state->list < 0)  in execute()
601 						state->any = 1;  in execute()
602 					if (state->label)  in execute()
621 	State_s state;  in grep_main()  local
622 	memset(&state, 0, sizeof(state));  in grep_main()
625 	state.match = 1;  in grep_main()
626 	state.options = REG_FIRST|REG_NOSUB|REG_NULL;  in grep_main()
629 		state.options |= REG_LENIENT;  in grep_main()
639 		state.options |= REG_EXTENDED;  in grep_main()
644 		state.options |= REG_LITERAL;  in grep_main()
649 		state.options |= REG_EXTENDED|REG_LENIENT;  in grep_main()
654 		state.options |= REG_AUGMENTED;  in grep_main()
665 			state.options |= REG_EXTENDED;  in grep_main()
668 			state.options |= REG_LITERAL;  in grep_main()
671 			state.options &= ~(REG_AUGMENTED|REG_EXTENDED);  in grep_main()
674 			state.prefix = opt_info.num;  in grep_main()
677 			state.list = -opt_info.num;  in grep_main()
683 			state.options |= REG_LENIENT;  in grep_main()
686 			state.options |= REG_EXTENDED|REG_LENIENT;  in grep_main()
689 			state.options &= ~REG_LENIENT;  in grep_main()
698 				state.buffer.size = strton(s, &s, NiL, 1);  in grep_main()
699 				if (c == 'b' && !(state.buffer.base = newof(0, char, state.buffer.size, 0)))  in grep_main()
705 				state.options |= REG_FIRST;  in grep_main()
708 				state.options |= REG_LEFT;  in grep_main()
711 				state.buffer.noshare = 1;  in grep_main()
714 				state.options |= REG_RIGHT;  in grep_main()
722 			state.options |= REG_AUGMENTED;  in grep_main()
727 			state.options &= ~(REG_FIRST|REG_NOSUB);  in grep_main()
730 			state.count |= 1;  in grep_main()
733 			addstring(&state, &state.pattern, opt_info.arg);  in grep_main()
736 			addstring(&state, &state.file, opt_info.arg);  in grep_main()
739 			state.prefix = 2;  in grep_main()
742 			state.options |= REG_ICASE;  in grep_main()
745 			state.list = opt_info.num;  in grep_main()
748 			state.label = 1;  in grep_main()
751 			state.number = 1;  in grep_main()
754 			state.query = 1;  in grep_main()
757 			state.suppress = opt_info.num;  in grep_main()
760 			state.count |= 2;  in grep_main()
763 			if (state.match = !opt_info.num)  in grep_main()
764 				state.options &= ~REG_INVERT;  in grep_main()
766 				state.options |= REG_INVERT;  in grep_main()
769 			state.words = 1;  in grep_main()
772 			state.options |= REG_LEFT|REG_RIGHT;  in grep_main()
785 	if ((state.options & REG_LITERAL) && (state.options & (REG_AUGMENTED|REG_EXTENDED)))  in grep_main()
787 	if ((state.options & REG_LITERAL) && state.words)  in grep_main()
789 	if (!state.file.head && !state.pattern.head)  in grep_main()
793 		addstring(&state, &state.pattern, *argv++);  in grep_main()
795 	if (!(state.options & (REG_FIRST|REG_NOSUB)))  in grep_main()
797 		if (state.count || state.list || state.query || (state.options & REG_INVERT))  in grep_main()
798 			state.options |= REG_FIRST|REG_NOSUB;  in grep_main()
801 			state.pos = state.posvec;  in grep_main()
802 			state.posnum = elementsof(state.posvec);  in grep_main()
805 	compile(&state);  in grep_main()
808 		state.prefix = h ? 1 : 0;  in grep_main()
809 		execute(&state, sfstdin, h);  in grep_main()
813 		if (state.prefix > 1)  in grep_main()
814 			state.prefix = 0;  in grep_main()
816 			state.prefix = 1;  in grep_main()
821 				execute(&state, f, s);  in grep_main()
823 				if (state.query && state.any)  in grep_main()
828 				state.notfound = 1;  in grep_main()
829 				if (!state.suppress)  in grep_main()
834 	if ((state.count & 2) && !state.query && !state.list)  in grep_main()
836 		if (state.label)  in grep_main()
840 			x = state.re.head;  in grep_main()
847 			sfprintf(sfstdout, "%I*u\n", sizeof(state.hits), state.hits);  in grep_main()
849 	return (state.notfound && !state.query) ? 2 : !state.any;  in grep_main()