lex.h

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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_lex_lex_h_
#define css_lex_lex_h_
 
#include <libwapcaplet/libwapcaplet.h>
 
#include <libcss/errors.h>
#include <libcss/functypes.h>
#include <libcss/types.h>
 
#include <parserutils/input/inputstream.h>
 
typedef struct css_lexer css_lexer;
 
typedef enum css_lexer_opttype {
        CSS_LEXER_EMIT_COMMENTS
} css_lexer_opttype;
 
typedef union css_lexer_optparams {
        bool emit_comments;
} css_lexer_optparams;
 
typedef enum css_token_type {
        CSS_TOKEN_IDENT, CSS_TOKEN_ATKEYWORD, CSS_TOKEN_HASH,
        CSS_TOKEN_FUNCTION, CSS_TOKEN_STRING, CSS_TOKEN_INVALID_STRING,
        CSS_TOKEN_URI, CSS_TOKEN_UNICODE_RANGE, CSS_TOKEN_CHAR,
        CSS_TOKEN_NUMBER, CSS_TOKEN_PERCENTAGE, CSS_TOKEN_DIMENSION,
 
        /* Those tokens that want strings interned appear above */
        CSS_TOKEN_LAST_INTERN,
 
        CSS_TOKEN_CDO, CSS_TOKEN_CDC, CSS_TOKEN_S, CSS_TOKEN_COMMENT,
        CSS_TOKEN_INCLUDES, CSS_TOKEN_DASHMATCH, CSS_TOKEN_PREFIXMATCH,
        CSS_TOKEN_SUFFIXMATCH, CSS_TOKEN_SUBSTRINGMATCH, CSS_TOKEN_EOF
} css_token_type;
 
typedef struct css_token {
        css_token_type type;
 
        struct {
                uint8_t *data;
                size_t len;
        } data;
 
        lwc_string *idata;
 
        uint32_t col;
        uint32_t line;
} css_token;
 
css_error css__lexer_create(parserutils_inputstream *input, css_lexer **lexer);
css_error css__lexer_destroy(css_lexer *lexer);
 
css_error css__lexer_setopt(css_lexer *lexer, css_lexer_opttype type,
                css_lexer_optparams *params);
 
css_error css__lexer_get_token(css_lexer *lexer, css_token **token);
 
#endif