intl/gettext.h

   1 /* Internal header for GNU gettext internationalization functions.
   2    Copyright (C) 1995, 1997 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 Library General Public
  15    License along with the GNU C Library; see the file COPYING.LIB.  If not,
  16    write to the Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor,
  17    Boston, MA 02110-1301, USA.  */
  18
  19 #ifndef _GETTEXT_H
  20 #define _GETTEXT_H 1
  21
  22 #include <stdio.h>
  23
  24 #if HAVE_LIMITS_H || _LIBC
  25 # include <limits.h>
  26 #endif
  27
  28 /* @@ end of prolog @@ */
  29
  30 /* The magic number of the GNU message catalog format.  */
  31 #define _MAGIC 0x950412de
  32 #define _MAGIC_SWAPPED 0xde120495
  33
  34 /* Revision number of the currently used .mo (binary) file format.  */
  35 #define MO_REVISION_NUMBER 0
  36
  37 /* The following contortions are an attempt to use the C preprocessor
  38    to determine an unsigned integral type that is 32 bits wide.  An
  39    alternative approach is to use autoconf's AC_CHECK_SIZEOF macro, but
  40    doing that would require that the configure script compile and *run*
  41    the resulting executable.  Locally running cross-compiled executables
  42    is usually not possible.  */
  43
  44 #if __STDC__
  45 # define UINT_MAX_32_BITS 4294967295U
  46 #else
  47 # define UINT_MAX_32_BITS 0xFFFFFFFF
  48 #endif
  49
  50 /* If UINT_MAX isn't defined, assume it's a 32-bit type.
  51    This should be valid for all systems GNU cares about because
  52    that doesn't include 16-bit systems, and only modern systems
  53    (that certainly have <limits.h>) have 64+-bit integral types.  */
  54
  55 #ifndef UINT_MAX
  56 # define UINT_MAX UINT_MAX_32_BITS
  57 #endif
  58
  59 #if UINT_MAX == UINT_MAX_32_BITS
  60 typedef unsigned nls_uint32;
  61 #else
  62 # if USHRT_MAX == UINT_MAX_32_BITS
  63 typedef unsigned short nls_uint32;
  64 # else
  65 #  if ULONG_MAX == UINT_MAX_32_BITS
  66 typedef unsigned long nls_uint32;
  67 #  else
  68   /* The following line is intended to throw an error.  Using #error is
  69      not portable enough.  */
  70   "Cannot determine unsigned 32-bit data type."
  71 #  endif
  72 # endif
  73 #endif
  74
  75
  76 /* Header for binary .mo file format.  */
  77 struct mo_file_header
  78 {
  79   /* The magic number.  */
  80   nls_uint32 magic;
  81   /* The revision number of the file format.  */
  82   nls_uint32 revision;
  83   /* The number of strings pairs.  */
  84   nls_uint32 nstrings;
  85   /* Offset of table with start offsets of original strings.  */
  86   nls_uint32 orig_tab_offset;
  87   /* Offset of table with start offsets of translation strings.  */
  88   nls_uint32 trans_tab_offset;
  89   /* Size of hashing table.  */
  90   nls_uint32 hash_tab_size;
  91   /* Offset of first hashing entry.  */
  92   nls_uint32 hash_tab_offset;
  93 };
  94
  95 struct string_desc
  96 {
  97   /* Length of addressed string.  */
  98   nls_uint32 length;
  99   /* Offset of string in file.  */
 100   nls_uint32 offset;
 101 };
 102
 103 /* @@ begin of epilog @@ */
 104
 105 #endif  /* gettext.h  */