VirtualBox

source: vbox/trunk/src/VBox/Runtime/r3/generic/RTLocaleQueryNormalizedBaseLocaleName-r3-generic.cpp@ 103914

Last change on this file since 103914 was 98103, checked in by vboxsync, 23 months ago

Copyright year updates by scm.

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1/* $Id: RTLocaleQueryNormalizedBaseLocaleName-r3-generic.cpp 98103 2023-01-17 14:15:46Z vboxsync $ */
2/** @file
3 * IPRT - RTLocaleQueryNormalizedBaseLocaleName, ring-3 generic.
4 */
5
6/*
7 * Copyright (C) 2017-2023 Oracle and/or its affiliates.
8 *
9 * This file is part of VirtualBox base platform packages, as
10 * available from https://www.virtualbox.org.
11 *
12 * This program is free software; you can redistribute it and/or
13 * modify it under the terms of the GNU General Public License
14 * as published by the Free Software Foundation, in version 3 of the
15 * License.
16 *
17 * This program is distributed in the hope that it will be useful, but
18 * WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
20 * General Public License for more details.
21 *
22 * You should have received a copy of the GNU General Public License
23 * along with this program; if not, see <https://www.gnu.org/licenses>.
24 *
25 * The contents of this file may alternatively be used under the terms
26 * of the Common Development and Distribution License Version 1.0
27 * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
28 * in the VirtualBox distribution, in which case the provisions of the
29 * CDDL are applicable instead of those of the GPL.
30 *
31 * You may elect to license modified versions of this file under the
32 * terms and conditions of either the GPL or the CDDL or both.
33 *
34 * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
35 */
36
37
38/*********************************************************************************************************************************
39* Header Files *
40*********************************************************************************************************************************/
41#include <iprt/locale.h>
42#include "internal/iprt.h"
43
44#include <iprt/ctype.h>
45#include <iprt/errcore.h>
46#include <iprt/string.h>
47
48
49/*
50 * Note! Code duplicated in r3/win/RTLocaleQueryNormalizedBaseLocaleName-win.cpp (adds fallback).
51 */
52RTDECL(int) RTLocaleQueryNormalizedBaseLocaleName(char *pszName, size_t cbName)
53{
54 char szLocale[_1K];
55 int rc = RTLocaleQueryLocaleName(szLocale, sizeof(szLocale));
56 if (RT_SUCCESS(rc))
57 {
58 /*
59 * May return some complicated "LC_XXX=yyy;LC.." sequence if
60 * partially set (like IPRT does). Try get xx_YY sequence first
61 * because 'C' or 'POSIX' may be LC_xxx variants that haven't been
62 * set yet.
63 *
64 * ASSUMES complicated locale mangling is done in a certain way...
65 */
66 const char *pszLocale = strchr(szLocale, '=');
67 if (!pszLocale)
68 pszLocale = szLocale;
69 else
70 pszLocale++;
71 bool fSeenC = false;
72 bool fSeenPOSIX = false;
73 do
74 {
75 const char *pszEnd = strchr(pszLocale, ';');
76
77 if ( RTLOCALE_IS_LANGUAGE2_UNDERSCORE_COUNTRY2(pszLocale)
78 && ( pszLocale[5] == '\0'
79 || RT_C_IS_PUNCT(pszLocale[5])) )
80 return RTStrCopyEx(pszName, cbName, pszLocale, 5);
81
82 if ( pszLocale[0] == 'C'
83 && ( pszLocale[1] == '\0'
84 || RT_C_IS_PUNCT(pszLocale[1])) )
85 fSeenC = true;
86 else if ( strncmp(pszLocale, "POSIX", 5) == 0
87 && ( pszLocale[5] == '\0'
88 || RT_C_IS_PUNCT(pszLocale[5])) )
89 fSeenPOSIX = true;
90
91 /* advance */
92 pszLocale = pszEnd ? strchr(pszEnd + 1, '=') : NULL;
93 } while (pszLocale++);
94
95 if (fSeenC || fSeenPOSIX)
96 return RTStrCopy(pszName, cbName, "C"); /* C and POSIX should be identical IIRC, so keep it simple. */
97
98 rc = VERR_NOT_AVAILABLE;
99 }
100 return rc;
101}
102
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