1 /**************************************************************
2 *
3 * Licensed to the Apache Software Foundation (ASF) under one
4 * or more contributor license agreements. See the NOTICE file
5 * distributed with this work for additional information
6 * regarding copyright ownership. The ASF licenses this file
7 * to you under the Apache License, Version 2.0 (the
8 * "License"); you may not use this file except in compliance
9 * with the License. You may obtain a copy of the License at
10 *
11 * http://www.apache.org/licenses/LICENSE-2.0
12 *
13 * Unless required by applicable law or agreed to in writing,
14 * software distributed under the License is distributed on an
15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
16 * KIND, either express or implied. See the License for the
17 * specific language governing permissions and limitations
18 * under the License.
19 *
20 *************************************************************/
21
22
23
24
25 // no include "precompiled_i18nisolang.hxx" because this file is included in insys.cxx
26
27 #include <stdlib.h> // for getenv()
28 #include <stdio.h>
29
30 #ifdef MACOSX
31 #include <osl/process.h>
32 #include <rtl/locale.h>
33 #include <rtl/ustring.hxx>
34
35 #else // MACOSX
36 #include <rtl/string.hxx>
37
38 #endif // MACOSX
39 #include <rtl/instance.hxx>
40 #include "i18npool/mslangid.hxx"
41
42 // =======================================================================
43
44 static LanguageType nImplSystemLanguage = LANGUAGE_DONTKNOW;
45 static LanguageType nImplSystemUILanguage = LANGUAGE_DONTKNOW;
46
47 // -----------------------------------------------------------------------
48
49 // Get locale of category LC_CTYPE of environment variables
getLangFromEnvironment()50 static const sal_Char* getLangFromEnvironment()
51 {
52 static const sal_Char* pFallback = "C";
53 const sal_Char *pLang = NULL;
54
55 pLang = getenv ( "LC_ALL" );
56 if (! pLang || pLang[0] == 0)
57 pLang = getenv ( "LC_CTYPE" );
58 if (! pLang || pLang[0] == 0)
59 pLang = getenv( "LANG" );
60 if (! pLang || pLang[0] == 0)
61 pLang = pFallback;
62
63 return pLang;
64 }
65
66 // -----------------------------------------------------------------------
67
68 // Get locale of category LC_MESSAGES of environment variables
getUILangFromEnvironment()69 static const sal_Char* getUILangFromEnvironment()
70 {
71 static const sal_Char* pFallback = "C";
72 const sal_Char *pLang = NULL;
73
74 pLang = getenv ( "LANGUAGE" ); // respect the GNU extension
75 if (! pLang || pLang[0] == 0)
76 pLang = getenv ( "LC_ALL" );
77 if (! pLang || pLang[0] == 0)
78 pLang = getenv ( "LC_MESSAGES" );
79 if (! pLang || pLang[0] == 0)
80 pLang = getenv( "LANG" );
81 if (! pLang || pLang[0] == 0)
82 pLang = pFallback;
83
84 return pLang;
85 }
86
87 // -----------------------------------------------------------------------
88
89 typedef const sal_Char * (*getLangFromEnv)();
90
getPlatformSystemLanguageImpl(LanguageType & rSystemLanguage,getLangFromEnv pGetLangFromEnv)91 static void getPlatformSystemLanguageImpl( LanguageType& rSystemLanguage,
92 getLangFromEnv pGetLangFromEnv )
93 {
94 /* get the language from the user environment */
95 LanguageType nLang = rSystemLanguage;
96 if ( nLang == LANGUAGE_DONTKNOW )
97 {
98 ::osl::MutexGuard aGuard( ::osl::Mutex::getGlobalMutex());
99 nLang = rSystemLanguage;
100 if ( nLang == LANGUAGE_DONTKNOW )
101 {
102 #ifdef MACOSX
103 rtl_Locale *procLocale;
104 (void) pGetLangFromEnv; /* unused */
105
106 if ( osl_getProcessLocale(&procLocale) == osl_Process_E_None )
107 {
108 rtl::OUString rLang( procLocale->Language );
109 rtl::OUString rCountry( procLocale->Country );
110
111 nLang = MsLangId::convertIsoNamesToLanguage( rLang, rCountry );
112 OSL_DOUBLE_CHECKED_LOCKING_MEMORY_BARRIER();
113 rSystemLanguage = nLang;
114 #ifdef DEBUG
115 if ( rSystemLanguage == LANGUAGE_DONTKNOW )
116 fprintf( stderr, "intnunx.cxx: failed to convert osl_getProcessLocale() language to system language.\n" );
117 #endif
118 }
119 #else /* MACOSX */
120 rtl::OString aUnxLang( (pGetLangFromEnv)() );
121 nLang = MsLangId::convertUnxByteStringToLanguage( aUnxLang );
122 OSL_DOUBLE_CHECKED_LOCKING_MEMORY_BARRIER();
123 rSystemLanguage = nLang;
124 #endif /* MACOSX */
125 }
126 else {
127 OSL_DOUBLE_CHECKED_LOCKING_MEMORY_BARRIER();
128 }
129 }
130 }
131
132 // -----------------------------------------------------------------------
133
getPlatformSystemLanguage()134 LanguageType MsLangId::getPlatformSystemLanguage()
135 {
136 getPlatformSystemLanguageImpl( nImplSystemLanguage, &getLangFromEnvironment);
137 return nImplSystemLanguage;
138 }
139
140 // -----------------------------------------------------------------------
141
getPlatformSystemUILanguage()142 LanguageType MsLangId::getPlatformSystemUILanguage()
143 {
144 getPlatformSystemLanguageImpl( nImplSystemUILanguage, &getUILangFromEnvironment);
145 return nImplSystemUILanguage;
146 }
147