source: gsdl/trunk/trunk/packages/unac/iconv.h@ 16583

Last change on this file since 16583 was 16583, checked in by davidb, 14 years ago

Undoing change commited in r16582

  • Property svn:keywords set to Author Date Id Revision
File size: 4.7 KB
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1/* Copyright (C) 1999-2003 Free Software Foundation, Inc.
2 This file is part of the GNU LIBICONV Library.
3
4 The GNU LIBICONV Library is free software; you can redistribute it
5 and/or modify it under the terms of the GNU Library General Public
6 License as published by the Free Software Foundation; either version 2
7 of the License, or (at your option) any later version.
8
9 The GNU LIBICONV Library is distributed in the hope that it will be
10 useful, 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 the GNU LIBICONV Library; see the file COPYING.LIB.
16 If not, write to the Free Software Foundation, Inc., 59 Temple Place -
17 Suite 330, Boston, MA 02111-1307, USA. */
18
19/* When installed, this file is called "iconv.h". */
20
21#ifndef _LIBICONV_H
22#define _LIBICONV_H
23
24#define _LIBICONV_VERSION 0x0109 /* version number: (major<<8) + minor */
25extern int _libiconv_version; /* Likewise */
26
27/* We would like to #include any system header file which could define
28 iconv_t, 1. in order to eliminate the risk that the user gets compilation
29 errors because some other system header file includes /usr/include/iconv.h
30 which defines iconv_t or declares iconv after this file, 2. when compiling
31 for LIBICONV_PLUG, we need the proper iconv_t type in order to produce
32 binary compatible code.
33 But gcc's #include_next is not portable. Thus, once libiconv's iconv.h
34 has been installed in /usr/local/include, there is no way any more to
35 include the original /usr/include/iconv.h. We simply have to get away
36 without it.
37 Ad 1. The risk that a system header file does
38 #include "iconv.h" or #include_next "iconv.h"
39 is small. They all do #include <iconv.h>.
40 Ad 2. The iconv_t type is a pointer type in all cases I have seen. (It
41 has to be a scalar type because (iconv_t)(-1) is a possible return value
42 from iconv_open().) */
43
44/* Define iconv_t ourselves. */
45#undef iconv_t
46#define iconv_t libiconv_t
47typedef void* iconv_t;
48
49/* Get size_t declaration. */
50#include <stddef.h>
51
52/* Get errno declaration and values. */
53#include <errno.h>
54/* Some systems, like SunOS 4, don't have EILSEQ. Some systems, like BSD/OS,
55 have EILSEQ in a different header. On these systems, define EILSEQ
56 ourselves. */
57#ifndef EILSEQ
58#define EILSEQ @EILSEQ@
59#endif
60
61
62#ifdef __cplusplus
63extern "C" {
64#endif
65
66
67/* Allocates descriptor for code conversion from encoding `fromcode' to
68 encoding `tocode'. */
69#ifndef LIBICONV_PLUG
70#define iconv_open libiconv_open
71#endif
72extern iconv_t iconv_open (const char* tocode, const char* fromcode);
73
74/* Converts, using conversion descriptor `cd', at most `*inbytesleft' bytes
75 starting at `*inbuf', writing at most `*outbytesleft' bytes starting at
76 `*outbuf'.
77 Decrements `*inbytesleft' and increments `*inbuf' by the same amount.
78 Decrements `*outbytesleft' and increments `*outbuf' by the same amount. */
79#ifndef LIBICONV_PLUG
80#define iconv libiconv
81#endif
82extern size_t iconv (iconv_t cd, const char* * inbuf, size_t *inbytesleft, char* * outbuf, size_t *outbytesleft);
83
84/* Frees resources allocated for conversion descriptor `cd'. */
85#ifndef LIBICONV_PLUG
86#define iconv_close libiconv_close
87#endif
88extern int iconv_close (iconv_t cd);
89
90
91#ifndef LIBICONV_PLUG
92
93/* Nonstandard extensions. */
94
95/* Control of attributes. */
96#define iconvctl libiconvctl
97extern int iconvctl (iconv_t cd, int request, void* argument);
98
99/* Requests for iconvctl. */
100#define ICONV_TRIVIALP 0 /* int *argument */
101#define ICONV_GET_TRANSLITERATE 1 /* int *argument */
102#define ICONV_SET_TRANSLITERATE 2 /* const int *argument */
103#define ICONV_GET_DISCARD_ILSEQ 3 /* int *argument */
104#define ICONV_SET_DISCARD_ILSEQ 4 /* const int *argument */
105
106/* Listing of locale independent encodings. */
107#define iconvlist libiconvlist
108extern void iconvlist (int (*do_one) (unsigned int namescount,
109 const char * const * names,
110 void* data),
111 void* data);
112
113/* Support for relocatable packages. */
114
115/* Sets the original and the current installation prefix of the package.
116 Relocation simply replaces a pathname starting with the original prefix
117 by the corresponding pathname with the current prefix instead. Both
118 prefixes should be directory names without trailing slash (i.e. use ""
119 instead of "/"). */
120extern void libiconv_set_relocation_prefix (const char *orig_prefix,
121 const char *curr_prefix);
122
123#endif
124
125
126#ifdef __cplusplus
127}
128#endif
129
130
131#endif /* _LIBICONV_H */
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