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Diffstat (limited to 'newlib/libc/iconv/ccs/ccs.h')
| -rw-r--r-- | newlib/libc/iconv/ccs/ccs.h | 158 |
1 files changed, 158 insertions, 0 deletions
diff --git a/newlib/libc/iconv/ccs/ccs.h b/newlib/libc/iconv/ccs/ccs.h new file mode 100644 index 000000000..d17f4ab91 --- /dev/null +++ b/newlib/libc/iconv/ccs/ccs.h @@ -0,0 +1,158 @@ +/* + * 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__ */ + |