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[bison.git] / intl / gettext.h

/* Description of GNU message catalog format: general file layout.
   Copyright (C) 1995, 1997, 2000, 2001 Free Software Foundation, Inc.

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 2, or (at your option)
   any later version.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software Foundation,
   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */

#ifndef _GETTEXT_H
#define _GETTEXT_H 1

#if HAVE_LIMITS_H || _LIBC
# include <limits.h>
#endif

/* @@ end of prolog @@ */

/* The magic number of the GNU message catalog format.  */
#define _MAGIC 0x950412de
#define _MAGIC_SWAPPED 0xde120495

/* Revision number of the currently used .mo (binary) file format.  */
#define MO_REVISION_NUMBER 0

/* The following contortions are an attempt to use the C preprocessor
   to determine an unsigned integral type that is 32 bits wide.  An
   alternative approach is to use autoconf's AC_CHECK_SIZEOF macro, but
   as of version autoconf-2.13, the AC_CHECK_SIZEOF macro doesn't work
   when cross-compiling.  */

#if __STDC__
# define UINT_MAX_32_BITS 4294967295U
#else
# define UINT_MAX_32_BITS 0xFFFFFFFF
#endif

/* If UINT_MAX isn't defined, assume it's a 32-bit type.
   This should be valid for all systems GNU cares about because
   that doesn't include 16-bit systems, and only modern systems
   (that certainly have <limits.h>) have 64+-bit integral types.  */

#ifndef UINT_MAX
# define UINT_MAX UINT_MAX_32_BITS
#endif

#if UINT_MAX == UINT_MAX_32_BITS
typedef unsigned nls_uint32;
#else
# if USHRT_MAX == UINT_MAX_32_BITS
typedef unsigned short nls_uint32;
# else
#  if ULONG_MAX == UINT_MAX_32_BITS
typedef unsigned long nls_uint32;
#  else
  /* The following line is intended to throw an error.  Using #error is
     not portable enough.  */
  "Cannot determine unsigned 32-bit data type."
#  endif
# endif
#endif


/* Header for binary .mo file format.  */
struct mo_file_header
{
  /* The magic number.  */
  nls_uint32 magic;
  /* The revision number of the file format.  */
  nls_uint32 revision;
  /* The number of strings pairs.  */
  nls_uint32 nstrings;
  /* Offset of table with start offsets of original strings.  */
  nls_uint32 orig_tab_offset;
  /* Offset of table with start offsets of translation strings.  */
  nls_uint32 trans_tab_offset;
  /* Size of hashing table.  */
  nls_uint32 hash_tab_size;
  /* Offset of first hashing entry.  */
  nls_uint32 hash_tab_offset;
};

struct string_desc
{
  /* Length of addressed string.  */
  nls_uint32 length;
  /* Offset of string in file.  */
  nls_uint32 offset;
};

/* @@ begin of epilog @@ */

#endif	/* gettext.h  */