/*
 *      encodings.h - this file is part of Geany, a fast and lightweight IDE
 *
 *      Copyright 2005-2009 Enrico Tröger <enrico(dot)troeger(at)uvena(dot)de>
 *      Copyright 2006-2009 Nick Treleaven <nick(dot)treleaven(at)btinternet(dot)com>
 *
 *      This program is free software; you can redistribute it and/or modify
 *      it under the terms of the GNU General Public License as published by
 *      the Free Software Foundation; either version 2 of the License, or
 *      (at your option) any later version.
 *
 *      This program 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 General Public License for more details.
 *
 *      You should have received a copy of the GNU General Public License
 *      along with this program; if not, write to the Free Software
 *      Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 *  $Id$
 */


/**
 *  @file encodings.h
 *  Encoding conversion and Byte Order Mark (BOM) handling.
 **/

/*
 * Modified by the gedit Team, 2002. See the gedit AUTHORS file for a
 * list of people on the gedit Team.
 * See the gedit ChangeLog files for a list of changes.
 */

 /* Stolen from anjuta */

#ifndef GEANY_ENCODINGS_H
#define GEANY_ENCODINGS_H


typedef enum
{
	NONE = 0,
	WESTEUROPEAN,
	EASTEUROPEAN,
	EASTASIAN,
	ASIAN,
	MIDDLEEASTERN,
	UNICODE,

	GEANY_ENCODING_GROUPS_MAX
} GeanyEncodingGroup;


/** Structure to represent an encoding to be used in Geany. */
typedef struct
{
	/** The index of the encoding, must be one of GeanyEncodingIndex. */
	gint   				 idx;
	/** Internally used member for grouping */
	gint   				 order;
	/** Internally used member for grouping */
	GeanyEncodingGroup   group;
	/** String representation of the encoding, e.g. "ISO-8859-3" */
	gchar				*charset;
	/** Translatable and descriptive name of the encoding, e.g. "South European" */
	gchar				*name;
} GeanyEncoding;


const GeanyEncoding* encodings_get_from_charset(const gchar *charset);
const GeanyEncoding* encodings_get_from_index(gint idx);

gchar* encodings_to_string(const GeanyEncoding* enc);
const gchar* encodings_get_charset(const GeanyEncoding* enc);
const gchar* encodings_get_charset_from_index(gint idx);

void encodings_select_radio_item(const gchar *charset);

void encodings_init(void);
void encodings_finalize(void);

gchar *encodings_convert_to_utf8(const gchar *buffer, gsize size, gchar **used_encoding);

/* Converts a string from the given charset to UTF-8.
 * If fast is set, no further checks are performed. */
gchar *encodings_convert_to_utf8_from_charset(const gchar *buffer, gsize size,
											  const gchar *charset, gboolean fast);

gboolean encodings_is_unicode_charset(const gchar *string);


/*
 * The original versions of the following tables are taken from profterm
 *
 * Copyright (C) 2002 Red Hat, Inc.
 */

/**
 * @enum GeanyEncodingIndex
 * List of known and supported encodings.
 **/
typedef enum
{
	GEANY_ENCODING_ISO_8859_1,
	GEANY_ENCODING_ISO_8859_2,
	GEANY_ENCODING_ISO_8859_3,
	GEANY_ENCODING_ISO_8859_4,
	GEANY_ENCODING_ISO_8859_5,
	GEANY_ENCODING_ISO_8859_6,
	GEANY_ENCODING_ISO_8859_7,
	GEANY_ENCODING_ISO_8859_8,
	GEANY_ENCODING_ISO_8859_8_I,
	GEANY_ENCODING_ISO_8859_9,
	GEANY_ENCODING_ISO_8859_10,
	GEANY_ENCODING_ISO_8859_13,
	GEANY_ENCODING_ISO_8859_14,
	GEANY_ENCODING_ISO_8859_15,
	GEANY_ENCODING_ISO_8859_16,

	GEANY_ENCODING_UTF_7,
	GEANY_ENCODING_UTF_8,
	GEANY_ENCODING_UTF_16LE,
	GEANY_ENCODING_UTF_16BE,
	GEANY_ENCODING_UCS_2LE,
	GEANY_ENCODING_UCS_2BE,
	GEANY_ENCODING_UTF_32LE,
	GEANY_ENCODING_UTF_32BE,

	GEANY_ENCODING_ARMSCII_8,
	GEANY_ENCODING_BIG5,
	GEANY_ENCODING_BIG5_HKSCS,
	GEANY_ENCODING_CP_866,

	GEANY_ENCODING_EUC_JP,
	GEANY_ENCODING_EUC_KR,
	GEANY_ENCODING_EUC_TW,

	GEANY_ENCODING_GB18030,
	GEANY_ENCODING_GB2312,
	GEANY_ENCODING_GBK,
	GEANY_ENCODING_GEOSTD8,
	GEANY_ENCODING_HZ,

	GEANY_ENCODING_IBM_850,
	GEANY_ENCODING_IBM_852,
	GEANY_ENCODING_IBM_855,
	GEANY_ENCODING_IBM_857,
	GEANY_ENCODING_IBM_862,
	GEANY_ENCODING_IBM_864,

	GEANY_ENCODING_ISO_2022_JP,
	GEANY_ENCODING_ISO_2022_KR,
	GEANY_ENCODING_ISO_IR_111,
	GEANY_ENCODING_JOHAB,
	GEANY_ENCODING_KOI8_R,
	GEANY_ENCODING_KOI8_U,

	GEANY_ENCODING_SHIFT_JIS,
	GEANY_ENCODING_TCVN,
	GEANY_ENCODING_TIS_620,
	GEANY_ENCODING_UHC,
	GEANY_ENCODING_VISCII,

	GEANY_ENCODING_WINDOWS_1250,
	GEANY_ENCODING_WINDOWS_1251,
	GEANY_ENCODING_WINDOWS_1252,
	GEANY_ENCODING_WINDOWS_1253,
	GEANY_ENCODING_WINDOWS_1254,
	GEANY_ENCODING_WINDOWS_1255,
	GEANY_ENCODING_WINDOWS_1256,
	GEANY_ENCODING_WINDOWS_1257,
	GEANY_ENCODING_WINDOWS_1258,

	GEANY_ENCODING_NONE,
	GEANY_ENCODING_CP_932,

	GEANY_ENCODINGS_MAX
} GeanyEncodingIndex;


extern GeanyEncoding encodings[GEANY_ENCODINGS_MAX];


GeanyEncodingIndex encodings_scan_unicode_bom(const gchar *string, gsize len, guint *bom_len);

GeanyEncodingIndex encodings_get_idx_from_charset(const gchar *charset);

#endif
