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c84142e8 | 1 | /* Internal header for GNU gettext internationalization functions. |
083dc54a | 2 | Copyright (C) 1995, 1997, 2000-2002, 2004 Free Software Foundation, Inc. |
41bdb6e2 | 3 | This file is part of the GNU C Library. |
c84142e8 UD |
4 | |
5 | The GNU C Library is free software; you can redistribute it and/or | |
41bdb6e2 AJ |
6 | modify it under the terms of the GNU Lesser General Public |
7 | License as published by the Free Software Foundation; either | |
8 | version 2.1 of the License, or (at your option) any later version. | |
c84142e8 UD |
9 | |
10 | The GNU C Library is distributed in the hope that it will be useful, | |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
41bdb6e2 | 13 | Lesser General Public License for more details. |
c84142e8 | 14 | |
41bdb6e2 AJ |
15 | You should have received a copy of the GNU Lesser General Public |
16 | License along with the GNU C Library; if not, write to the Free | |
17 | Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA | |
18 | 02111-1307 USA. */ | |
24906b43 RM |
19 | |
20 | #ifndef _GETTEXT_H | |
21 | #define _GETTEXT_H 1 | |
22 | ||
0555fcce | 23 | #include <limits.h> |
24906b43 RM |
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 | |
083dc54a | 33 | #define MO_REVISION_NUMBER_WITH_SYSDEP_I 1 |
24906b43 RM |
34 | |
35 | /* The following contortions are an attempt to use the C preprocessor | |
36 | to determine an unsigned integral type that is 32 bits wide. An | |
37 | alternative approach is to use autoconf's AC_CHECK_SIZEOF macro, but | |
4a4d50f3 UD |
38 | as of version autoconf-2.13, the AC_CHECK_SIZEOF macro doesn't work |
39 | when cross-compiling. */ | |
24906b43 RM |
40 | |
41 | #if __STDC__ | |
42 | # define UINT_MAX_32_BITS 4294967295U | |
43 | #else | |
44 | # define UINT_MAX_32_BITS 0xFFFFFFFF | |
45 | #endif | |
46 | ||
47 | /* If UINT_MAX isn't defined, assume it's a 32-bit type. | |
48 | This should be valid for all systems GNU cares about because | |
49 | that doesn't include 16-bit systems, and only modern systems | |
50 | (that certainly have <limits.h>) have 64+-bit integral types. */ | |
51 | ||
52 | #ifndef UINT_MAX | |
53 | # define UINT_MAX UINT_MAX_32_BITS | |
54 | #endif | |
55 | ||
56 | #if UINT_MAX == UINT_MAX_32_BITS | |
57 | typedef unsigned nls_uint32; | |
58 | #else | |
59 | # if USHRT_MAX == UINT_MAX_32_BITS | |
60 | typedef unsigned short nls_uint32; | |
61 | # else | |
62 | # if ULONG_MAX == UINT_MAX_32_BITS | |
63 | typedef unsigned long nls_uint32; | |
64 | # else | |
65 | /* The following line is intended to throw an error. Using #error is | |
66 | not portable enough. */ | |
67 | "Cannot determine unsigned 32-bit data type." | |
68 | # endif | |
69 | # endif | |
70 | #endif | |
71 | ||
72 | ||
73 | /* Header for binary .mo file format. */ | |
74 | struct mo_file_header | |
75 | { | |
76 | /* The magic number. */ | |
77 | nls_uint32 magic; | |
78 | /* The revision number of the file format. */ | |
79 | nls_uint32 revision; | |
3172f58f | 80 | |
083dc54a | 81 | /* The following are only used in .mo files with major revision 0 or 1. */ |
3172f58f | 82 | |
24906b43 RM |
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; | |
3172f58f | 87 | /* Offset of table with start offsets of translated strings. */ |
24906b43 | 88 | nls_uint32 trans_tab_offset; |
3172f58f | 89 | /* Size of hash table. */ |
24906b43 | 90 | nls_uint32 hash_tab_size; |
3172f58f | 91 | /* Offset of first hash table entry. */ |
24906b43 | 92 | nls_uint32 hash_tab_offset; |
3172f58f UD |
93 | |
94 | /* The following are only used in .mo files with minor revision >= 1. */ | |
95 | ||
96 | /* The number of system dependent segments. */ | |
97 | nls_uint32 n_sysdep_segments; | |
98 | /* Offset of table describing system dependent segments. */ | |
99 | nls_uint32 sysdep_segments_offset; | |
100 | /* The number of system dependent strings pairs. */ | |
101 | nls_uint32 n_sysdep_strings; | |
102 | /* Offset of table with start offsets of original sysdep strings. */ | |
103 | nls_uint32 orig_sysdep_tab_offset; | |
104 | /* Offset of table with start offsets of translated sysdep strings. */ | |
105 | nls_uint32 trans_sysdep_tab_offset; | |
24906b43 RM |
106 | }; |
107 | ||
3172f58f | 108 | /* Descriptor for static string contained in the binary .mo file. */ |
24906b43 RM |
109 | struct string_desc |
110 | { | |
3172f58f | 111 | /* Length of addressed string, not including the trailing NUL. */ |
24906b43 RM |
112 | nls_uint32 length; |
113 | /* Offset of string in file. */ | |
114 | nls_uint32 offset; | |
115 | }; | |
116 | ||
3172f58f UD |
117 | /* The following are only used in .mo files with minor revision >= 1. */ |
118 | ||
119 | /* Descriptor for system dependent string segment. */ | |
120 | struct sysdep_segment | |
121 | { | |
122 | /* Length of addressed string, including the trailing NUL. */ | |
123 | nls_uint32 length; | |
124 | /* Offset of string in file. */ | |
125 | nls_uint32 offset; | |
126 | }; | |
127 | ||
128 | /* Descriptor for system dependent string. */ | |
129 | struct sysdep_string | |
130 | { | |
131 | /* Offset of static string segments in file. */ | |
132 | nls_uint32 offset; | |
133 | /* Alternating sequence of static and system dependent segments. | |
134 | The last segment is a static segment, including the trailing NUL. */ | |
135 | struct segment_pair | |
136 | { | |
137 | /* Size of static segment. */ | |
138 | nls_uint32 segsize; | |
139 | /* Reference to system dependent string segment, or ~0 at the end. */ | |
140 | nls_uint32 sysdepref; | |
141 | } segments[1]; | |
142 | }; | |
143 | ||
144 | /* Marker for the end of the segments[] array. This has the value 0xFFFFFFFF, | |
145 | regardless whether 'int' is 16 bit, 32 bit, or 64 bit. */ | |
146 | #define SEGMENTS_END ((nls_uint32) ~0) | |
147 | ||
24906b43 RM |
148 | /* @@ begin of epilog @@ */ |
149 | ||
150 | #endif /* gettext.h */ |