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1 zoff99 2 /* Description of GNU message catalog format: general file layout.
2     Copyright (C) 1995, 1997, 2000-2002, 2004 Free Software Foundation, Inc.
3    
4     This program is free software; you can redistribute it and/or modify it
5     under the terms of the GNU Library General Public License as published
6     by 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 GNU
12     Library General Public License for more details.
13    
14     You should have received a copy of the GNU Library General Public
15     License along with this program; if not, write to the Free Software
16     Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
17     USA. */
18    
19     #ifndef _GETTEXT_H
20     #define _GETTEXT_H 1
21    
22     #include <limits.h>
23    
24     /* @@ end of prolog @@ */
25    
26     /* The magic number of the GNU message catalog format. */
27     #define _MAGIC 0x950412de
28     #define _MAGIC_SWAPPED 0xde120495
29    
30     /* Revision number of the currently used .mo (binary) file format. */
31     #define MO_REVISION_NUMBER 0
32     #define MO_REVISION_NUMBER_WITH_SYSDEP_I 1
33    
34     /* The following contortions are an attempt to use the C preprocessor
35     to determine an unsigned integral type that is 32 bits wide. An
36     alternative approach is to use autoconf's AC_CHECK_SIZEOF macro, but
37     as of version autoconf-2.13, the AC_CHECK_SIZEOF macro doesn't work
38     when cross-compiling. */
39    
40     #if __STDC__
41     # define UINT_MAX_32_BITS 4294967295U
42     #else
43     # define UINT_MAX_32_BITS 0xFFFFFFFF
44     #endif
45    
46     /* If UINT_MAX isn't defined, assume it's a 32-bit type.
47     This should be valid for all systems GNU cares about because
48     that doesn't include 16-bit systems, and only modern systems
49     (that certainly have <limits.h>) have 64+-bit integral types. */
50    
51     #ifndef UINT_MAX
52     # define UINT_MAX UINT_MAX_32_BITS
53     #endif
54    
55     #if UINT_MAX == UINT_MAX_32_BITS
56     typedef unsigned nls_uint32;
57     #else
58     # if USHRT_MAX == UINT_MAX_32_BITS
59     typedef unsigned short nls_uint32;
60     # else
61     # if ULONG_MAX == UINT_MAX_32_BITS
62     typedef unsigned long nls_uint32;
63     # else
64     /* The following line is intended to throw an error. Using #error is
65     not portable enough. */
66     "Cannot determine unsigned 32-bit data type."
67     # endif
68     # endif
69     #endif
70    
71    
72     /* Header for binary .mo file format. */
73     struct mo_file_header
74     {
75     /* The magic number. */
76     nls_uint32 magic;
77     /* The revision number of the file format. */
78     nls_uint32 revision;
79    
80     /* The following are only used in .mo files with major revision 0 or 1. */
81    
82     /* The number of strings pairs. */
83     nls_uint32 nstrings;
84     /* Offset of table with start offsets of original strings. */
85     nls_uint32 orig_tab_offset;
86     /* Offset of table with start offsets of translated strings. */
87     nls_uint32 trans_tab_offset;
88     /* Size of hash table. */
89     nls_uint32 hash_tab_size;
90     /* Offset of first hash table entry. */
91     nls_uint32 hash_tab_offset;
92    
93     /* The following are only used in .mo files with minor revision >= 1. */
94    
95     /* The number of system dependent segments. */
96     nls_uint32 n_sysdep_segments;
97     /* Offset of table describing system dependent segments. */
98     nls_uint32 sysdep_segments_offset;
99     /* The number of system dependent strings pairs. */
100     nls_uint32 n_sysdep_strings;
101     /* Offset of table with start offsets of original sysdep strings. */
102     nls_uint32 orig_sysdep_tab_offset;
103     /* Offset of table with start offsets of translated sysdep strings. */
104     nls_uint32 trans_sysdep_tab_offset;
105     };
106    
107     /* Descriptor for static string contained in the binary .mo file. */
108     struct string_desc
109     {
110     /* Length of addressed string, not including the trailing NUL. */
111     nls_uint32 length;
112     /* Offset of string in file. */
113     nls_uint32 offset;
114     };
115    
116     /* The following are only used in .mo files with minor revision >= 1. */
117    
118     /* Descriptor for system dependent string segment. */
119     struct sysdep_segment
120     {
121     /* Length of addressed string, including the trailing NUL. */
122     nls_uint32 length;
123     /* Offset of string in file. */
124     nls_uint32 offset;
125     };
126    
127     /* Descriptor for system dependent string. */
128     struct sysdep_string
129     {
130     /* Offset of static string segments in file. */
131     nls_uint32 offset;
132     /* Alternating sequence of static and system dependent segments.
133     The last segment is a static segment, including the trailing NUL. */
134     struct segment_pair
135     {
136     /* Size of static segment. */
137     nls_uint32 segsize;
138     /* Reference to system dependent string segment, or ~0 at the end. */
139     nls_uint32 sysdepref;
140     } segments[1];
141     };
142    
143     /* Marker for the end of the segments[] array. This has the value 0xFFFFFFFF,
144     regardless whether 'int' is 16 bit, 32 bit, or 64 bit. */
145     #define SEGMENTS_END ((nls_uint32) ~0)
146    
147     /* @@ begin of epilog @@ */
148    
149     #endif /* gettext.h */

   
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