/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/* This file is part of the GtkHTML library.

   Copyright (C) 1997 Martin Jones (mjones@kde.org)
   Copyright (C) 1997 Torben Weis (weis@kde.org)
   Copyright (C) 2000 Helix Code, Inc.
   Copyright (C) 2001 Ximian, Inc.
   
   This library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Library General Public
   License as published by the Free Software Foundation; either
   version 2 of the License, or (at your option) any later version.
   
   This library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Library General Public License for more details.
   
   You should have received a copy of the GNU Library General Public License
   along with this library; see the file COPYING.LIB.  If not, write to
   the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
   Boston, MA 02111-1307, USA.
*/

#ifndef _HTMLTOKENIZER_H_
#define _HTMLTOKENIZER_H_

#include <gtk/gtkobject.h>
#include "htmltypes.h"

#define TAG_ESCAPE 13
#define TAB_SIZE 8

#define HTML_TYPE_TOKENIZER        (html_tokenizer_get_type ())
#define HTML_TOKENIZER(o)          (GTK_CHECK_CAST ((o), HTML_TYPE_TOKENIZER, HTMLTokenizer))
#define HTML_TOKENIZER_CLASS(k)    (GTK_CHECK_CLASS_CAST ((k), HTML_TYPE_TOKENIZER, HTMLTokenizerClass))
#define HTML_IS_TOKENIZER(o)       (GTK_CHECK_TYPE ((o), HTML_TYPE_TOKENIZER))
#define HTML_IS_TOKENIZER_CLASS(k) (GTK_CHECK_CLASS_TYPE ((k), HTML_TYPE_TOKENIZER))

struct _HTMLTokenizerPrivate;

struct _HTMLTokenizer {
	GtkObject parent;
	struct _HTMLTokenizerPrivate *priv;
};

struct _HTMLTokenizerClass {
	GtkObjectClass parent_class;

	/* signals */
	void     (*begin)           (HTMLTokenizer *, gchar *content_type);
	void     (*end)             (HTMLTokenizer *);

	/* virtual functions */
	void           (*write)      (HTMLTokenizer *, const gchar *string, size_t size);
	gchar         *(*peek_token) (HTMLTokenizer *);
	gchar         *(*next_token) (HTMLTokenizer *);
	gboolean       (*has_more)   (HTMLTokenizer *);

	HTMLTokenizer *(*clone)      (HTMLTokenizer *);
};

GtkType        html_tokenizer_get_type        (void);

HTMLTokenizer *html_tokenizer_new             (void);
void           html_tokenizer_destroy         (HTMLTokenizer *tokenizer);

void           html_tokenizer_begin           (HTMLTokenizer *t, 
					       gchar *content_type);
void           html_tokenizer_write           (HTMLTokenizer *t,
					       const gchar *string,
					       size_t size);
void           html_tokenizer_end             (HTMLTokenizer *t);
gchar *        html_tokenizer_peek_token      (HTMLTokenizer *t);
gchar *        html_tokenizer_next_token      (HTMLTokenizer *t);
gboolean       html_tokenizer_has_more_tokens (HTMLTokenizer *t);

HTMLTokenizer *html_tokenizer_clone           (HTMLTokenizer *t);

#endif /* _HTMLTOKENIZER_H_ */