3 * Silicon Graphics Computer Systems, Inc.
8 * This material is provided "as is", with absolutely no warranty expressed
9 * or implied. Any use is at your own risk.
11 * Permission to use or copy this software for any purpose is hereby granted
12 * without fee, provided the above notices are retained on all copies.
13 * Permission to modify the code and to distribute modified code is granted,
14 * provided the above notices are retained, and a notice that the code was
15 * modified is included with the above copyright notice.
18 #ifndef MESSAGE_FACETS_H
19 #define MESSAGE_FACETS_H
28 _STLP_MOVE_TO_PRIV_NAMESPACE
30 // Class _Catalog_locale_map. The reason for this is that, internally,
31 // a message string is always a char*. We need a ctype facet to convert
32 // a string to and from wchar_t, and the user is permitted to provide such
33 // a facet when calling open().
35 struct _Catalog_locale_map {
36 _Catalog_locale_map() : M(0) {}
37 ~_Catalog_locale_map() { if (M) delete M; }
39 void insert(nl_catd_type key, const locale& L);
40 locale lookup(nl_catd_type key) const;
41 void erase(nl_catd_type key);
43 typedef hash_map<nl_catd_type, locale, hash<nl_catd_type>, equal_to<nl_catd_type>,
44 allocator<pair<_STLP_CONST nl_catd_type, locale> > > map_type;
47 private: // Invalidate copy constructor and assignment
48 _Catalog_locale_map(const _Catalog_locale_map&);
49 void operator=(const _Catalog_locale_map&);
53 * In glibc nl_catd type is void *, but messages_base::catalog is defined as int
54 * by ISO/IEC 14882; The int may be too short to store pointer on 64-bit platforms;
55 * Another problem, is that do_open() may return negative value to indicate that no
56 * catalog open---this case can't be represented with pointers.
57 * The class _Catalog_nl_catd_map intended to make relation between
58 * messages_base::catalog and nl_catd handler.
62 #if defined (_STLP_USE_GLIBC2_LOCALIZATION)
63 # define _STLP_USE_NL_CATD_MAPPING
65 /* If no mapping a message_base::catalog entry, int typedef according C++ Standard 22.2.7.1,
66 * has to be large enough to contain a nl_catd_type value.
68 _STLP_STATIC_ASSERT(sizeof(nl_catd_type) <= sizeof(int))
71 class _STLP_CLASS_DECLSPEC _Catalog_nl_catd_map {
73 _Catalog_nl_catd_map()
75 ~_Catalog_nl_catd_map()
78 typedef hash_map<messages_base::catalog, nl_catd_type, hash<messages_base::catalog>, equal_to<messages_base::catalog>,
79 allocator<pair<_STLP_CONST messages_base::catalog, nl_catd_type> > > map_type;
80 typedef hash_map<nl_catd_type, messages_base::catalog, hash<nl_catd_type>, equal_to<nl_catd_type>,
81 allocator<pair<_STLP_CONST nl_catd_type, messages_base::catalog> > > rmap_type;
82 // typedef map<messages_base::catalog,nl_catd_type> map_type;
83 // typedef map<nl_catd_type,messages_base::catalog> rmap_type;
85 messages_base::catalog insert(nl_catd_type cat)
86 #if !defined (_STLP_USE_NL_CATD_MAPPING)
87 { return (messages_base::catalog)cat; }
92 void erase(messages_base::catalog)
93 #if !defined (_STLP_USE_NL_CATD_MAPPING)
99 nl_catd_type operator [] ( messages_base::catalog cat )
100 #if !defined (_STLP_USE_NL_CATD_MAPPING)
103 { return cat < 0 ? 0 : M[cat]; }
107 _Catalog_nl_catd_map(const _Catalog_nl_catd_map&);
108 _Catalog_nl_catd_map& operator =(const _Catalog_nl_catd_map&);
110 #if defined (_STLP_USE_NL_CATD_MAPPING)
113 static _STLP_VOLATILE __stl_atomic_t _count;
119 typedef messages_base::catalog catalog;
121 _Messages(bool, const char *name);
122 _Messages(bool, _Locale_messages*);
124 catalog do_open(const string& __fn, const locale& __loc) const;
125 string do_get(catalog __c, int __set, int __msgid,
126 const string& __dfault) const;
127 #if !defined (_STLP_NO_WCHAR_T)
128 wstring do_get(catalog __c, int __set, int __msgid,
129 const wstring& __dfault) const;
131 void do_close(catalog __c) const;
135 _Locale_messages* _M_message_obj;
136 _Catalog_locale_map* _M_map;
137 mutable _Catalog_nl_catd_map _M_cat;
139 //private definition to avoid warning (with ICL)
140 _Messages(const _Messages&);
141 _Messages& operator=(const _Messages&);
144 _STLP_MOVE_TO_STD_NAMESPACE