#include <inttypes.h>#include <stdio.h> #include <libcss/libcss.h> #include "charset/detect.h"#include "utils/utils.h" #include "lex/lex.h"#include "parse/parse.h" #include "testutils.h" #define ITERATIONS (1)#define DUMP_EVENTS (0) #if DUMP_EVENTSstatic const char *event_names[] = {	"START_STYLESHEET",	"END_STYLESHEET",	"START_RULESET",	"END_RULESET",	"START_ATRULE",	"END_ATRULE",	"START_BLOCK",	"END_BLOCK",	"BLOCK_CONTENT",	"DECLARATION"};#endif static css_error event_handler(css_parser_event type,		const parserutils_vector *tokens, void *pw){#if !DUMP_EVENTS	UNUSED(type);	UNUSED(tokens);	UNUSED(pw);#else	int32_t ctx = 0;	const css_token *token; 	UNUSED(pw); 	printf("%s%s", tokens != NULL ? "  " : "", event_names[type]); 	if (tokens == NULL) {		printf("\n");		return CSS_OK;	} 	do {		token = parserutils_vector_iterate(tokens, &ctx);		if (token == NULL)			break; 		printf("\n    %d", token->type); 		if (token->data.data != NULL)			printf(" %.*s", (int) token->data.len, token->data.data);	} while (token != NULL); 	printf("\n");#endif 	return CSS_OK;} int main(int argc, char **argv){	css_parser_optparams params;	css_parser *parser;	FILE *fp;	size_t len;#define CHUNK_SIZE (4096)	uint8_t buf[CHUNK_SIZE];	css_error error;	int i; 	if (argc != 2) {		printf("Usage: %s <filename>\n", argv[0]);		return 1;	} 	for (i = 0; i < ITERATIONS; i++) {		assert(css__parser_create("UTF-8", CSS_CHARSET_DICTATED,				&parser) == CSS_OK); 		params.event_handler.handler = event_handler;		params.event_handler.pw = NULL;		assert(css__parser_setopt(parser, CSS_PARSER_EVENT_HANDLER,				&params) == CSS_OK); 		fp = fopen(argv[1], "rb");		if (fp == NULL) {			printf("Failed opening %s\n", argv[1]);			return 1;		} 		fseek(fp, 0, SEEK_END);		len = ftell(fp);		fseek(fp, 0, SEEK_SET); 		while (len >= CHUNK_SIZE) {			size_t read = fread(buf, 1, CHUNK_SIZE, fp);			assert(read == CHUNK_SIZE); 			error = css__parser_parse_chunk(parser, buf, CHUNK_SIZE);			assert(error == CSS_OK || error == CSS_NEEDDATA); 			len -= CHUNK_SIZE;		} 		if (len > 0) {			size_t read = fread(buf, 1, len, fp);			assert(read == len); 			error = css__parser_parse_chunk(parser, buf, len);			assert(error == CSS_OK || error == CSS_NEEDDATA); 			len = 0;		} 		fclose(fp); 		assert(css__parser_completed(parser) == CSS_OK); 		css__parser_destroy(parser); 	} 	printf("PASS\n"); 	return 0;}