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gmo.h
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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 */