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/* GTK - The GIMP Toolkit
* Copyright (C) 2011 Benjamin Otte <otte@gnome.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/

#ifndef __GTK_CSS_PARSER_PRIVATE_H__
#define __GTK_CSS_PARSER_PRIVATE_H__

#include <gtk/gtksymboliccolor.h>

G_BEGIN_DECLS

typedef struct _GtkCssParser GtkCssParser;

typedef void (* GtkCssParserErrorFunc) (GtkCssParser *parser,
                                        const GError *error,
                                        gpointer user_data);

GtkCssParser * _gtk_css_parser_new (const char *data,
                                                   GtkCssParserErrorFunc error_func,
                                                   gpointer user_data);
void _gtk_css_parser_free (GtkCssParser *parser);

void _gtk_css_parser_take_error (GtkCssParser *parser,
                                                   GError *error);
void _gtk_css_parser_error (GtkCssParser *parser,
                                                   const char *format,
                                                    ...) G_GNUC_PRINTF (2, 3);

guint _gtk_css_parser_get_line (GtkCssParser *parser);
guint _gtk_css_parser_get_position (GtkCssParser *parser);

gboolean _gtk_css_parser_is_eof (GtkCssParser *parser);
gboolean _gtk_css_parser_begins_with (GtkCssParser *parser,
                                                   char c);
gboolean _gtk_css_parser_is_string (GtkCssParser *parser);

/* IMPORTANT:
* _try_foo() functions do not modify the data pointer if they fail, nor do they
* signal an error. _read_foo() will modify the data pointer and position it at
* the first token that is broken and emit an error about the failure.
* So only call _read_foo() when you know that you are reading a foo. _try_foo()
* however is fine to call if you don't know yet if the token is a foo or a bar,
* you can _try_bar() if try_foo() failed.
*/
gboolean _gtk_css_parser_try (GtkCssParser *parser,
                                                   const char *string,
                                                   gboolean skip_whitespace);
char * _gtk_css_parser_try_ident (GtkCssParser *parser,
                                                   gboolean skip_whitespace);
char * _gtk_css_parser_try_name (GtkCssParser *parser,
                                                   gboolean skip_whitespace);
gboolean _gtk_css_parser_try_int (GtkCssParser *parser,
                                                   int *value);
gboolean _gtk_css_parser_try_uint (GtkCssParser *parser,
                                                   guint *value);
gboolean _gtk_css_parser_try_double (GtkCssParser *parser,
                                                   gdouble *value);

void _gtk_css_parser_skip_whitespace (GtkCssParser *parser);
char * _gtk_css_parser_read_string (GtkCssParser *parser);
char * _gtk_css_parser_read_uri (GtkCssParser *parser);
char * _gtk_css_parser_read_value (GtkCssParser *parser);
GtkSymbolicColor *_gtk_css_parser_read_symbolic_color
                                                  (GtkCssParser *parser);

void _gtk_css_parser_resync (GtkCssParser *parser,
                                                   gboolean sync_at_semicolon,
                                                   char terminator);

G_END_DECLS

#endif /* __GTK_CSS_PARSER_PRIVATE_H__ */
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