1/*
2 *  unicode.h
3 *
4 *  $Id: unicode.h,v 1.2 2006/01/20 15:58:35 source Exp $
5 *
6 *  ODBC unicode support
7 *
8 *  The iODBC driver manager.
9 *
10 *  Copyright (C) 1996-2006 by OpenLink Software <iodbc@openlinksw.com>
11 *  All Rights Reserved.
12 *
13 *  This software is released under the terms of either of the following
14 *  licenses:
15 *
16 *      - GNU Library General Public License (see LICENSE.LGPL)
17 *      - The BSD License (see LICENSE.BSD).
18 *
19 *  Note that the only valid version of the LGPL license as far as this
20 *  project is concerned is the original GNU Library General Public License
21 *  Version 2, dated June 1991.
22 *
23 *  While not mandated by the BSD license, any patches you make to the
24 *  iODBC source code may be contributed back into the iODBC project
25 *  at your discretion. Contributions will benefit the Open Source and
26 *  Data Access community as a whole. Submissions may be made at:
27 *
28 *      http://www.iodbc.org
29 *
30 *
31 *  GNU Library Generic Public License Version 2
32 *  ============================================
33 *  This library is free software; you can redistribute it and/or
34 *  modify it under the terms of the GNU Library General Public
35 *  License as published by the Free Software Foundation; only
36 *  Version 2 of the License dated June 1991.
37 *
38 *  This library is distributed in the hope that it will be useful,
39 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
40 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
41 *  Library General Public License for more details.
42 *
43 *  You should have received a copy of the GNU Library General Public
44 *  License along with this library; if not, write to the Free
45 *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
46 *
47 *
48 *  The BSD License
49 *  ===============
50 *  Redistribution and use in source and binary forms, with or without
51 *  modification, are permitted provided that the following conditions
52 *  are met:
53 *
54 *  1. Redistributions of source code must retain the above copyright
55 *     notice, this list of conditions and the following disclaimer.
56 *  2. Redistributions in binary form must reproduce the above copyright
57 *     notice, this list of conditions and the following disclaimer in
58 *     the documentation and/or other materials provided with the
59 *     distribution.
60 *  3. Neither the name of OpenLink Software Inc. nor the names of its
61 *     contributors may be used to endorse or promote products derived
62 *     from this software without specific prior written permission.
63 *
64 *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
65 *  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
66 *  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
67 *  A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL OPENLINK OR
68 *  CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
69 *  EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
70 *  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
71 *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
72 *  LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
73 *  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
74 *  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
75 */
76
77#ifndef _UNICODE_H
78#define _UNICODE_H
79
80#if HAVE_WCHAR_H
81#include <wchar.h>
82#endif
83
84
85/*
86 *  Max length of a UTF-8 encoded character sequence
87 */
88#define UTF8_MAX_CHAR_LEN 4
89
90/*
91 *  Function Prototypes
92 */
93SQLCHAR *dm_SQL_W2A (SQLWCHAR * inStr, ssize_t size);
94SQLCHAR *dm_SQL_WtoU8 (SQLWCHAR * inStr, ssize_t size);
95SQLCHAR *dm_strcpy_W2A (SQLCHAR * destStr, SQLWCHAR * sourStr);
96
97SQLWCHAR *dm_SQL_A2W (SQLCHAR * inStr, ssize_t size);
98SQLWCHAR *dm_SQL_U8toW (SQLCHAR * inStr, SQLSMALLINT size);
99SQLWCHAR *dm_strcpy_A2W (SQLWCHAR * destStr, SQLCHAR * sourStr);
100
101int dm_StrCopyOut2_A2W (SQLCHAR * inStr, SQLWCHAR * outStr, SQLSMALLINT size,
102    SQLSMALLINT * result);
103int dm_StrCopyOut2_U8toW (SQLCHAR * inStr, SQLWCHAR * outStr, size_t size,
104    u_short * result);
105int dm_StrCopyOut2_W2A (SQLWCHAR * inStr, SQLCHAR * outStr, SQLSMALLINT size,
106    SQLSMALLINT * result);
107
108
109# ifdef WIN32
110#define OPL_W2A(w, a, cb)     \
111	WideCharToMultiByte(CP_ACP, 0, w, cb, a, cb, NULL, NULL)
112
113#define OPL_A2W(a, w, cb)     \
114	MultiByteToWideChar(CP_ACP, 0, a, cb, w, cb)
115
116# else
117#define OPL_W2A(XW, XA, SIZE)      wcstombs((char *) XA, (wchar_t *) XW, SIZE)
118#define OPL_A2W(XA, XW, SIZE)      mbstowcs((wchar_t *) XW, (char *) XA, SIZE)
119# endif
120
121#if MACOSX >= 103
122#define HAVE_WCHAR_H
123#define HAVE_WCSLEN
124#define HAVE_WCSCPY
125#define HAVE_WCSNCPY
126#define HAVE_WCSCHR
127#define HAVE_WCSCAT
128#define HAVE_WCSCMP
129#define HAVE_TOWLOWER
130#endif
131
132/*
133 *  Replacement functions
134 */
135#if !defined(HAVE_WCSLEN)
136size_t wcslen (const wchar_t * wcs);
137#endif
138#if !defined(HAVE_WCSCPY)
139wchar_t * wcscpy (wchar_t * wcd, const wchar_t * wcs);
140#endif
141#if !defined(HAVE_WCSNCPY)
142wchar_t * wcsncpy (wchar_t * wcd, const wchar_t * wcs, size_t n);
143#endif
144#if !defined(HAVE_WCSCHR)
145wchar_t* wcschr(const wchar_t *wcs, const wchar_t wc);
146#endif
147#if !defined(HAVE_WCSCAT)
148wchar_t* wcscat(wchar_t *dest, const wchar_t *src);
149#endif
150#if !defined(HAVE_WCSCMP)
151int wcscmp (const wchar_t* s1, const wchar_t* s2);
152#endif
153#if !defined(HAVE_WCSNCASECMP)
154int wcsncasecmp (wchar_t* s1, wchar_t* s2, size_t n);
155#endif
156
157#endif /* _UNICODE_H */
158