intl/gettext.h

   1 /* Description of GNU message catalog format: general file layout.
   2    Copyright (C) 1995, 1997, 2000, 2001 Free Software Foundation, Inc.
   3
   4    This program is free software; you can redistribute it and/or modify
   5    it under the terms of the GNU General Public License as published by
   6    the Free Software Foundation; either version 2, or (at your option)
   7    any later version.
   8
   9    This program is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12    GNU General Public License for more details.
  13
  14    You should have received a copy of the GNU General Public License
  15    along with this program; if not, write to the Free Software Foundation,
  16    Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
  17
  18 #ifndef _GETTEXT_H
  19 #define _GETTEXT_H 1
  20
  21 #if HAVE_LIMITS_H || _LIBC
  22 # include <limits.h>
  23 #endif
  24
  25 /* @@ end of prolog @@ */
  26
  27 /* The magic number of the GNU message catalog format.  */
  28 #define _MAGIC 0x950412de
  29 #define _MAGIC_SWAPPED 0xde120495
  30
  31 /* Revision number of the currently used .mo (binary) file format.  */
  32 #define MO_REVISION_NUMBER 0
  33
  34 /* The following contortions are an attempt to use the C preprocessor
  35    to determine an unsigned integral type that is 32 bits wide.  An
  36    alternative approach is to use autoconf's AC_CHECK_SIZEOF macro, but
  37    as of version autoconf-2.13, the AC_CHECK_SIZEOF macro doesn't work
  38    when cross-compiling.  */
  39
  40 #if __STDC__
  41 # define UINT_MAX_32_BITS 4294967295U
  42 #else
  43 # define UINT_MAX_32_BITS 0xFFFFFFFF
  44 #endif
  45
  46 /* If UINT_MAX isn't defined, assume it's a 32-bit type.
  47    This should be valid for all systems GNU cares about because
  48    that doesn't include 16-bit systems, and only modern systems
  49    (that certainly have <limits.h>) have 64+-bit integral types.  */
  50
  51 #ifndef UINT_MAX
  52 # define UINT_MAX UINT_MAX_32_BITS
  53 #endif
  54
  55 #if UINT_MAX == UINT_MAX_32_BITS
  56 typedef unsigned nls_uint32;
  57 #else
  58 # if USHRT_MAX == UINT_MAX_32_BITS
  59 typedef unsigned short nls_uint32;
  60 # else
  61 #  if ULONG_MAX == UINT_MAX_32_BITS
  62 typedef unsigned long nls_uint32;
  63 #  else
  64   /* The following line is intended to throw an error.  Using #error is
  65      not portable enough.  */
  66   "Cannot determine unsigned 32-bit data type."
  67 #  endif
  68 # endif
  69 #endif
  70
  71
  72 /* Header for binary .mo file format.  */
  73 struct mo_file_header
  74 {
  75   /* The magic number.  */
  76   nls_uint32 magic;
  77   /* The revision number of the file format.  */
  78   nls_uint32 revision;
  79   /* The number of strings pairs.  */
  80   nls_uint32 nstrings;
  81   /* Offset of table with start offsets of original strings.  */
  82   nls_uint32 orig_tab_offset;
  83   /* Offset of table with start offsets of translation strings.  */
  84   nls_uint32 trans_tab_offset;
  85   /* Size of hashing table.  */
  86   nls_uint32 hash_tab_size;
  87   /* Offset of first hashing entry.  */
  88   nls_uint32 hash_tab_offset;
  89 };
  90
  91 struct string_desc
  92 {
  93   /* Length of addressed string.  */
  94   nls_uint32 length;
  95   /* Offset of string in file.  */
  96   nls_uint32 offset;
  97 };
  98
  99 /* @@ begin of epilog @@ */
 100
 101 #endif  /* gettext.h  */