/* GLIB - Library of useful routines for C programming
 * Copyright (C) 1995-1997  Peter Mattis, Spencer Kimball and Josh MacDonald
 *
 * 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.
 */

/*
 * Modified by the GLib Team and others 1997-2000.  See the AUTHORS
 * file for a list of people on the GLib Team.  See the ChangeLog
 * files for a list of changes.  These files are distributed with
 * GLib at ftp://ftp.gtk.org/pub/gtk/. 
 */

#ifndef __G_CONVERT_H__
#define __G_CONVERT_H__

#include <stddef.h>      /* For size_t */
#include <glib/gerror.h>

G_BEGIN_DECLS

typedef enum 
{
  G_CONVERT_ERROR_NO_CONVERSION,
  G_CONVERT_ERROR_ILLEGAL_SEQUENCE,
  G_CONVERT_ERROR_FAILED,
  G_CONVERT_ERROR_PARTIAL_INPUT,
  G_CONVERT_ERROR_BAD_URI,
  G_CONVERT_ERROR_NOT_ABSOLUTE_PATH
} GConvertError;

#define G_CONVERT_ERROR g_convert_error_quark()
GQuark g_convert_error_quark (void);

/* Thin wrappers around iconv
 */
typedef struct _GIConv *GIConv;

GIConv g_iconv_open   (const gchar  *to_codeset,
		       const gchar  *from_codeset);
size_t g_iconv        (GIConv        converter,
		       gchar       **inbuf,
		       gsize        *inbytes_left,
		       gchar       **outbuf,
		       gsize        *outbytes_left);
gint   g_iconv_close  (GIConv        converter);


gchar* g_convert               (const gchar  *str,
				gssize        len,            
				const gchar  *to_codeset,
				const gchar  *from_codeset,
				gsize        *bytes_read,     
				gsize        *bytes_written,  
				GError      **error);
gchar* g_convert_with_iconv    (const gchar  *str,
				gssize        len,
				GIConv        converter,
				gsize        *bytes_read,     
				gsize        *bytes_written,  
				GError      **error);
gchar* g_convert_with_fallback (const gchar  *str,
				gssize        len,            
				const gchar  *to_codeset,
				const gchar  *from_codeset,
				gchar        *fallback,
				gsize        *bytes_read,     
				gsize        *bytes_written,  
				GError      **error);


/* Convert between libc's idea of strings and UTF-8.
 */
gchar* g_locale_to_utf8   (const gchar  *opsysstring,
			   gssize        len,            
			   gsize        *bytes_read,     
			   gsize        *bytes_written,  
			   GError      **error);
gchar* g_locale_from_utf8 (const gchar  *utf8string,
			   gssize        len,            
			   gsize        *bytes_read,     
			   gsize        *bytes_written,  
			   GError      **error);

/* Convert between the operating system (or C runtime)
 * representation of file names and UTF-8.
 */
gchar* g_filename_to_utf8   (const gchar  *opsysstring,
			     gssize        len,            
			     gsize        *bytes_read,     
			     gsize        *bytes_written,  
			     GError      **error);
gchar* g_filename_from_utf8 (const gchar  *utf8string,
			     gssize        len,            
			     gsize        *bytes_read,     
			     gsize        *bytes_written,  
			     GError      **error);

gchar *g_filename_from_uri (const gchar *uri,
			    gchar      **hostname,
			    GError     **error);
  
gchar *g_filename_to_uri   (const gchar *filename,
			    const gchar *hostname,
			    GError     **error);


G_END_DECLS

#endif /* __G_CONVERT_H__ */
