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/* Description of GNU message catalog format: general file layout.
Copyright (C) 1995-2016 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, 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 Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#ifndef _GETTEXT_H
#define _GETTEXT_H 1
#include <limits.h>
/* @@ 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
#define MO_REVISION_NUMBER_WITH_SYSDEP_I 1
/* 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 following are only used in .mo files with major revision 0 or 1. */
/* 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 translated strings. */
nls_uint32 trans_tab_offset;
/* Size of hash table. */
nls_uint32 hash_tab_size;
/* Offset of first hash table entry. */
nls_uint32 hash_tab_offset;
/* The following are only used in .mo files with minor revision >= 1. */
/* The number of system dependent segments. */
nls_uint32 n_sysdep_segments;
/* Offset of table describing system dependent segments. */
nls_uint32 sysdep_segments_offset;
/* The number of system dependent strings pairs. */
nls_uint32 n_sysdep_strings;
/* Offset of table with start offsets of original sysdep strings. */
nls_uint32 orig_sysdep_tab_offset;
/* Offset of table with start offsets of translated sysdep strings. */
nls_uint32 trans_sysdep_tab_offset;
};
/* Descriptor for static string contained in the binary .mo file. */
struct string_desc
{
/* Length of addressed string, not including the trailing NUL. */
nls_uint32 length;
/* Offset of string in file. */
nls_uint32 offset;
};
/* The following are only used in .mo files with minor revision >= 1. */
/* Descriptor for system dependent string segment. */
struct sysdep_segment
{
/* Length of addressed string, including the trailing NUL. */
nls_uint32 length;
/* Offset of string in file. */
nls_uint32 offset;
};
/* Pair of a static and a system dependent segment, in struct sysdep_string. */
struct segment_pair
{
/* Size of static segment. */
nls_uint32 segsize;
/* Reference to system dependent string segment, or ~0 at the end. */
nls_uint32 sysdepref;
};
/* Descriptor for system dependent string. */
struct sysdep_string
{
/* Offset of static string segments in file. */
nls_uint32 offset;
/* Alternating sequence of static and system dependent segments.
The last segment is a static segment, including the trailing NUL. */
struct segment_pair segments[1];
};
/* Marker for the end of the segments[] array. This has the value 0xFFFFFFFF,
regardless whether 'int' is 16 bit, 32 bit, or 64 bit. */
#define SEGMENTS_END ((nls_uint32) ~0)
/* @@ begin of epilog @@ */
#endif /* gettext.h */
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