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/*
* Copyright (c) 2003-2004, Artem B. Bityuckiy
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef __CCS_H__
#define __CCS_H__
#include <_ansi.h>
#include <sys/types.h>
#include <sys/param.h>
/*
* Size-optimized tables will be linked instead of speed-optimized if
* TABLE_USE_SIZE_OPTIMISATION macro is defined.
*/
#if defined (PREFER_SIZE_OVER_SPEED) || defined (__OPTIMIZE_SIZE__)
# define TABLE_USE_SIZE_OPTIMIZATION
#endif
/* Invalid code marker */
#define INVALC 0xFFFF
/* Invalid block marker - marks empty blocks in speed-optimized tables */
#define INVBLK 0xFFFF
/* Lost code marker - marks codes that was lost during CCS->UCS mapping */
#define LOST_C DEFAULT_CHARACTER
/*
* Table parameters values.
*/
/* Table version 1.0 identifier */
#define TABLE_VERSION_1 1
/* 8 and 16 bit tables identifiers */
#define TABLE_8BIT 8
#define TABLE_16BIT 16
/* Size-optimized and speed-optimized tables identifiers */
#define TABLE_SIZE_OPTIMIZED 1
#define TABLE_SPEED_OPTIMIZED 2
/* Built-in/external tables identifiers */
#define TABLE_BUILTIN 1
#define TABLE_EXTERNAL 2
/*
* Binary table fields.
*/
/* "No table" marker */
#define EXTTABLE_NO_TABLE 0
/* Version offset (2 bytes) */
#define EXTTABLE_VERSION_OFF 0
/* Bits number offset (2 bytes) */
#define EXTTABLE_BITS_OFF 2
/* CCS name length offset (2 bytes) */
#define EXTTABLE_CCSNAME_LEN_OFF 4
/* CCS name offset (expanded to even bytes number)*/
#define EXTTABLE_CCSNAME_OFF 8
/* Header length (minus CCS name) */
#define EXTTABLE_HEADER_LEN (EXTTABLE_CCSNAME_OFF + 16*4)
/* Tables and lengths offsets minus CCS name length (4 bytes) */
#define EXTTABLE_FROM_SPEED_BE_OFF (EXTTABLE_CCSNAME_OFF + 0)
#define EXTTABLE_FROM_SPEED_BE_LEN_OFF (EXTTABLE_CCSNAME_OFF + 4)
#define EXTTABLE_FROM_SPEED_LE_OFF (EXTTABLE_CCSNAME_OFF + 8)
#define EXTTABLE_FROM_SPEED_LE_LEN_OFF (EXTTABLE_CCSNAME_OFF + 12)
#define EXTTABLE_FROM_SIZE_BE_OFF (EXTTABLE_CCSNAME_OFF + 16)
#define EXTTABLE_FROM_SIZE_BE_LEN_OFF (EXTTABLE_CCSNAME_OFF + 20)
#define EXTTABLE_FROM_SIZE_LE_OFF (EXTTABLE_CCSNAME_OFF + 24)
#define EXTTABLE_FROM_SIZE_LE_LEN_OFF (EXTTABLE_CCSNAME_OFF + 28)
#define EXTTABLE_TO_SPEED_BE_OFF (EXTTABLE_CCSNAME_OFF + 32)
#define EXTTABLE_TO_SPEED_BE_LEN_OFF (EXTTABLE_CCSNAME_OFF + 36)
#define EXTTABLE_TO_SPEED_LE_OFF (EXTTABLE_CCSNAME_OFF + 40)
#define EXTTABLE_TO_SPEED_LE_LEN_OFF (EXTTABLE_CCSNAME_OFF + 44)
#define EXTTABLE_TO_SIZE_BE_OFF (EXTTABLE_CCSNAME_OFF + 48)
#define EXTTABLE_TO_SIZE_BE_LEN_OFF (EXTTABLE_CCSNAME_OFF + 52)
#define EXTTABLE_TO_SIZE_LE_OFF (EXTTABLE_CCSNAME_OFF + 56)
#define EXTTABLE_TO_SIZE_LE_LEN_OFF (EXTTABLE_CCSNAME_OFF + 60)
/* Endian-independent offsets */
#if (BYTE_ORDER == LITTLE_ENDIAN)
# define EXTTABLE_FROM_SPEED_OFF EXTTABLE_FROM_SPEED_LE_OFF
# define EXTTABLE_FROM_SIZE_OFF EXTTABLE_FROM_SIZE_LE_OFF
# define EXTTABLE_TO_SPEED_OFF EXTTABLE_TO_SPEED_LE_OFF
# define EXTTABLE_TO_SIZE_OFF EXTTABLE_TO_SIZE_LE_OFF
# define EXTTABLE_FROM_SPEED_LEN_OFF EXTTABLE_FROM_SPEED_LE_LEN_OFF
# define EXTTABLE_FROM_SIZE_LEN_OFF EXTTABLE_FROM_SIZE_LE_LEN_OFF
# define EXTTABLE_TO_SPEED_LEN_OFF EXTTABLE_TO_SPEED_LE_LEN_OFF
# define EXTTABLE_TO_SIZE_LEN_OFF EXTTABLE_TO_SIZE_LE_LEN_OFF
#elif (BYTE_ORDER == BIG_ENDIAN)
# define EXTTABLE_FROM_SPEED_OFF EXTTABLE_FROM_SPEED_BE_OFF
# define EXTTABLE_FROM_SIZE_OFF EXTTABLE_FROM_SIZE_BE_OFF
# define EXTTABLE_TO_SPEED_OFF EXTTABLE_TO_SPEED_BE_OFF
# define EXTTABLE_TO_SIZE_OFF EXTTABLE_TO_SIZE_BE_OFF
# define EXTTABLE_FROM_SPEED_LEN_OFF EXTTABLE_FROM_SPEED_BE_LEN_OFF
# define EXTTABLE_FROM_SIZE_LEN_OFF EXTTABLE_FROM_SIZE_BE_LEN_OFF
# define EXTTABLE_TO_SPEED_LEN_OFF EXTTABLE_TO_SPEED_BE_LEN_OFF
# define EXTTABLE_TO_SIZE_LEN_OFF EXTTABLE_TO_SIZE_BE_LEN_OFF
#endif
/*
* Size-optimized suitable fields indexes.
*/
/* Ranges number array index */
#define RANGES_NUM_INDEX 0
/* Un-ranged codes number array index */
#define UNRANGED_NUM_INDEX 1
/* First un-ranged pair index array index */
#define FIRST_UNRANGED_INDEX_INDEX 2
/* First range array index */
#define FIRST_RANGE_INDEX 3
/*
* Builtin CCS table description structure.
*/
typedef struct
{
__uint16_t ver; /* Table version */
_CONST char *name; /* CCS name */
__uint16_t bits; /* CCS's bits number */
int from_ucs_type; /* UCS -> CCS table optimization type */
_CONST __uint16_t *from_ucs; /* UCS -> CCS table */
int to_ucs_type; /* CCS -> UCS table optimization type */
_CONST __uint16_t *to_ucs; /* CCS -> UCS table */
} iconv_ccs_t;
/*
* CCS table descriptor.
*/
typedef struct
{
int bits; /* CCS's bits number */
int type; /* Table type (builtin/external) */
int optimization; /* Table optimization type (speed/size) */
_CONST __uint16_t *tbl; /* Table's data */
} iconv_ccs_desc_t;
/* Array containing all built-in CCS tables */
extern _CONST iconv_ccs_t *
_iconv_ccs[];
#endif /* __CCS_H__ */
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