text: /*
   * 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__ */
  
  