188 	inputsource *source;  in new_source()  local
190 	source = isc_mem_get(lex->mctx, sizeof(*source));  in new_source()
191 	source->result = ISC_R_SUCCESS;  in new_source()
192 	source->is_file = is_file;  in new_source()
193 	source->need_close = need_close;  in new_source()
194 	source->at_eof = false;  in new_source()
195 	source->last_was_eol = lex->last_was_eol;  in new_source()
196 	source->input = input;  in new_source()
197 	source->name = isc_mem_strdup(lex->mctx, name);  in new_source()
198 	source->pushback = NULL;  in new_source()
199 	isc_buffer_allocate(lex->mctx, &source->pushback,  in new_source()
201 	source->ignored = 0;  in new_source()
202 	source->line = 1;  in new_source()
203 	ISC_LIST_INITANDPREPEND(lex->sources, source, link);  in new_source()
263 	inputsource *source;  in isc_lex_close()  local
271 	source = HEAD(lex->sources);  in isc_lex_close()
272 	if (source == NULL) {  in isc_lex_close()
276 	ISC_LIST_UNLINK(lex->sources, source, link);  in isc_lex_close()
277 	lex->last_was_eol = source->last_was_eol;  in isc_lex_close()
278 	if (source->is_file) {  in isc_lex_close()
279 		if (source->need_close) {  in isc_lex_close()
280 			(void)fclose((FILE *)(source->input));  in isc_lex_close()
283 	isc_mem_free(lex->mctx, source->name);  in isc_lex_close()
284 	isc_buffer_free(&source->pushback);  in isc_lex_close()
285 	isc_mem_put(lex->mctx, source, sizeof(*source));  in isc_lex_close()
309 pushback(inputsource *source, int c) {  in pushback()  argument
310 	REQUIRE(source->pushback->current > 0);  in pushback()
312 		source->at_eof = false;  in pushback()
315 	source->pushback->current--;  in pushback()
317 		source->line--;  in pushback()
322 pushandgrow(isc_lex_t *lex, inputsource *source, int c) {  in pushandgrow()  argument
323 	if (isc_buffer_availablelength(source->pushback) == 0) {  in pushandgrow()
329 		oldlen = isc_buffer_length(source->pushback);  in pushandgrow()
331 		isc_buffer_usedregion(source->pushback, &used);  in pushandgrow()
334 		tbuf->current = source->pushback->current;  in pushandgrow()
335 		isc_buffer_free(&source->pushback);  in pushandgrow()
336 		source->pushback = tbuf;  in pushandgrow()
338 	isc_buffer_putuint8(source->pushback, (uint8_t)c);  in pushandgrow()
344 	inputsource *source;  in isc_lex_gettoken()  local
364 	source = HEAD(lex->sources);  in isc_lex_gettoken()
367 	if (source == NULL) {  in isc_lex_gettoken()
375 	if (source->result != ISC_R_SUCCESS) {  in isc_lex_gettoken()
376 		return (source->result);  in isc_lex_gettoken()
380 	source->saved_line = source->line;  in isc_lex_gettoken()
382 	if (isc_buffer_remaininglength(source->pushback) == 0 && source->at_eof)  in isc_lex_gettoken()
402 	isc_buffer_compact(source->pushback);  in isc_lex_gettoken()
416 	if (source->is_file) {  in isc_lex_gettoken()
417 		flockfile(source->input);  in isc_lex_gettoken()
422 		if (isc_buffer_remaininglength(source->pushback) == 0) {  in isc_lex_gettoken()
423 			if (source->is_file) {  in isc_lex_gettoken()
424 				stream = source->input;  in isc_lex_gettoken()
433 						source->result = ISC_R_IOERROR;  in isc_lex_gettoken()
434 						result = source->result;  in isc_lex_gettoken()
437 					source->at_eof = true;  in isc_lex_gettoken()
440 				buffer = source->input;  in isc_lex_gettoken()
444 					source->at_eof = true;  in isc_lex_gettoken()
452 				source->result = pushandgrow(lex, source, c);  in isc_lex_gettoken()
453 				if (source->result != ISC_R_SUCCESS) {  in isc_lex_gettoken()
454 					result = source->result;  in isc_lex_gettoken()
460 		if (!source->at_eof) {  in isc_lex_gettoken()
463 				source->ignored = isc_buffer_consumedlength(  in isc_lex_gettoken()
464 					source->pushback);  in isc_lex_gettoken()
466 			c = isc_buffer_getuint8(source->pushback);  in isc_lex_gettoken()
472 			source->line++;  in isc_lex_gettoken()
612 				pushback(source, c);  in isc_lex_gettoken()
633 					pushback(source, c);  in isc_lex_gettoken()
724 				pushback(source, c);  in isc_lex_gettoken()
725 				if (source->result != ISC_R_SUCCESS) {  in isc_lex_gettoken()
726 					result = source->result;  in isc_lex_gettoken()
770 			pushback(source, c);  in isc_lex_gettoken()
843 					pushback(source, c);  in isc_lex_gettoken()
926 	if (source->is_file) {  in isc_lex_gettoken()
927 		funlockfile(source->input);  in isc_lex_gettoken()
1022 	inputsource *source;  in isc_lex_ungettoken()  local
1028 	source = HEAD(lex->sources);  in isc_lex_ungettoken()
1029 	REQUIRE(source != NULL);  in isc_lex_ungettoken()
1031 	REQUIRE(isc_buffer_consumedlength(source->pushback) != 0 ||  in isc_lex_ungettoken()
1036 	isc_buffer_first(source->pushback);  in isc_lex_ungettoken()
1038 	source->line = source->saved_line;  in isc_lex_ungettoken()
1039 	source->at_eof = false;  in isc_lex_ungettoken()
1044 	inputsource *source;  in isc_lex_getlasttokentext()  local
1047 	source = HEAD(lex->sources);  in isc_lex_getlasttokentext()
1048 	REQUIRE(source != NULL);  in isc_lex_getlasttokentext()
1050 	REQUIRE(isc_buffer_consumedlength(source->pushback) != 0 ||  in isc_lex_getlasttokentext()
1055 	INSIST(source->ignored <= isc_buffer_consumedlength(source->pushback));  in isc_lex_getlasttokentext()
1056 	r->base = (unsigned char *)isc_buffer_base(source->pushback) +  in isc_lex_getlasttokentext()
1057 		  source->ignored;  in isc_lex_getlasttokentext()
1058 	r->length = isc_buffer_consumedlength(source->pushback) -  in isc_lex_getlasttokentext()
1059 		    source->ignored;  in isc_lex_getlasttokentext()
1064 	inputsource *source;  in isc_lex_getsourcename()  local
1067 	source = HEAD(lex->sources);  in isc_lex_getsourcename()
1069 	if (source == NULL) {  in isc_lex_getsourcename()
1073 	return (source->name);  in isc_lex_getsourcename()
1078 	inputsource *source;  in isc_lex_getsourceline()  local
1081 	source = HEAD(lex->sources);  in isc_lex_getsourceline()
1083 	if (source == NULL) {  in isc_lex_getsourceline()
1087 	return (source->line);  in isc_lex_getsourceline()
1092 	inputsource *source;  in isc_lex_setsourcename()  local
1096 	source = HEAD(lex->sources);  in isc_lex_setsourcename()
1098 	if (source == NULL) {  in isc_lex_setsourcename()
1102 	isc_mem_free(lex->mctx, source->name);  in isc_lex_setsourcename()
1103 	source->name = newname;  in isc_lex_setsourcename()
1109 	inputsource *source;  in isc_lex_setsourceline()  local
1112 	source = HEAD(lex->sources);  in isc_lex_setsourceline()
1114 	if (source == NULL) {  in isc_lex_setsourceline()
1118 	source->line = line;  in isc_lex_setsourceline()
1124 	inputsource *source;  in isc_lex_isfile()  local
1128 	source = HEAD(lex->sources);  in isc_lex_isfile()
1130 	if (source == NULL) {  in isc_lex_isfile()
1134 	return (source->is_file);  in isc_lex_isfile()