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/*
 * This file is part of LibCSS.
 * Licensed under the MIT License,
 *                http://www.opensource.org/licenses/mit-license.php
 * Copyright 2008 John-Mark Bell <jmb@netsurf-browser.org>
 */

#ifndef css_parse_parse_h_
#define css_parse_parse_h_

#include <parserutils/utils/vector.h>

#include <libcss/errors.h>
#include <libcss/functypes.h>
#include <libcss/types.h>

typedef struct css_parser css_parser;

/**
 * Parser event types
 */
typedef enum css_parser_event {
	CSS_PARSER_START_STYLESHEET,
	CSS_PARSER_END_STYLESHEET,
	CSS_PARSER_START_RULESET,
	CSS_PARSER_END_RULESET,
	CSS_PARSER_START_ATRULE,
	CSS_PARSER_END_ATRULE,
	CSS_PARSER_START_BLOCK,
	CSS_PARSER_END_BLOCK,
	CSS_PARSER_BLOCK_CONTENT,
	CSS_PARSER_SELECTOR,
	CSS_PARSER_DECLARATION,
} css_parser_event;

typedef css_error (*css_parser_event_handler)(css_parser_event type, 
		const parserutils_vector *tokens, void *pw);

/**
 * Parser option types
 */
typedef enum css_parser_opttype {
	CSS_PARSER_QUIRKS,
	CSS_PARSER_EVENT_HANDLER,
} css_parser_opttype;

/**
 * Parser option parameters
 */
typedef union css_parser_optparams {
	bool quirks;

	struct {
		css_parser_event_handler handler;
		void *pw;
	} event_handler;
} css_parser_optparams;

css_parser *css_parser_create(const char *charset, css_charset_source cs_source,
		css_alloc alloc, void *pw);
void css_parser_destroy(css_parser *parser);

css_error css_parser_setopt(css_parser *parser, css_parser_opttype type,
		css_parser_optparams *params);

css_error css_parser_parse_chunk(css_parser *parser, const uint8_t *data, 
		size_t len);
css_error css_parser_completed(css_parser *parser);

const char *css_parser_read_charset(css_parser *parser, 
		css_charset_source *source);

const uint8_t *css_parser_dict_add(css_parser *parser,
		const uint8_t *ptr, size_t len);

#endif