| /*************************************************************************** |
| * |
| * _messages.cc - definition of std::messages members |
| * |
| * $Id$ |
| * |
| *************************************************************************** |
| * |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed |
| * with this work for additional information regarding copyright |
| * ownership. The ASF licenses this file to you under the Apache |
| * License, Version 2.0 (the "License"); you may not use this file |
| * except in compliance with the License. You may obtain a copy of |
| * the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or |
| * implied. See the License for the specific language governing |
| * permissions and limitations under the License. |
| * |
| * Copyright 1994-2008 Rogue Wave Software, Inc. |
| * |
| **************************************************************************/ |
| |
| #include <loc/_ctype.h> |
| |
| |
| _RWSTD_NAMESPACE (std) { |
| |
| |
| template <class _CharT> |
| _RW::__rw_facet_id messages<_CharT>::id; |
| |
| |
| // outlined to avoid generating a vtable in each translation unit |
| // that uses the class |
| template <class _CharT> |
| /* virtual */ messages<_CharT>:: |
| ~messages () |
| { |
| // no-op |
| } |
| |
| |
| template <class _CharT> |
| messages_base::catalog |
| messages<_CharT>:: |
| do_open (const string& __fun, const locale&__loc) const |
| { |
| return _RW::__rw_cat_open (__fun, __loc); |
| } |
| |
| |
| template <class _CharT> |
| void |
| messages<_CharT>:: |
| do_close (messages_base::catalog __cat) const |
| { |
| _RW::__rw_cat_close (__cat); |
| } |
| |
| |
| template <class _CharT> |
| typename messages<_CharT>::string_type |
| messages<_CharT>::do_get (messages_base::catalog __cat, |
| int __set, |
| int __msgid, |
| const string_type &__dfault) const |
| { |
| const char* const __text = _RW::__rw_get_message (__cat, __set, __msgid); |
| |
| if (__text) { |
| typedef _STD::codecvt<_CharT, char, _RWSTD_MBSTATE_T> |
| _CodeCvt; |
| |
| typedef typename _CodeCvt::state_type state_type; |
| |
| const _CodeCvt& __codecvt = |
| _RWSTD_USE_FACET (_CodeCvt, _RW::__rw_get_locale (__cat)); |
| |
| if (sizeof (_CharT) == sizeof (char) && __codecvt.always_noconv ()) { |
| // lwg issue 19: always_noconv() is only allowed to return |
| // true if extern_type and intern_type are one and the same |
| return _RWSTD_REINTERPRET_CAST (const _CharT*, __text); |
| } |
| |
| typedef char_traits<char> _CharTraits; |
| typedef _RWSTD_SIZE_T _SizeT; |
| |
| const _SizeT __src_len = _CharTraits::length (__text); |
| const char* const __src_first = __text; |
| const char* const __src_last = __text + __src_len; |
| const char* __src_next = __src_first; |
| |
| // allocate a [wide] string large enough to hold at least |
| // as many internal characters as there are bytes in the |
| // multibyte characater message |
| string_type __result_str ((const _CharT*)0, __src_len); |
| |
| _CharT* const __dst_first = &__result_str [0]; |
| _CharT* const __dst_last = __dst_first + __src_len; |
| _CharT* __dst_next = __dst_first; |
| |
| state_type __state = state_type (); |
| |
| // avoid using const codecvt_base::result here |
| // to prevent HP aCC 3.27 errors |
| const int __res = |
| __codecvt.in (__state, __src_first, __src_last, __src_next, |
| __dst_first, __dst_last, __dst_next); |
| |
| switch (__res) { |
| case codecvt_base::ok: |
| // shrink the converted string accordingly |
| _RWSTD_ASSERT (__dst_first <= __dst_next); |
| |
| __result_str.resize (_SizeT (__dst_next - __dst_first)); |
| return __result_str; |
| |
| case codecvt_base::noconv: |
| if (sizeof (_CharT) == sizeof (char)) { |
| // lwg issue 19: in() is only allowed to return noconv |
| // if extern_type and intern_type are one and the same |
| return _RWSTD_REINTERPRET_CAST (const _CharT*, __text); |
| } |
| else { |
| // should not happen - bad codecvt implementation |
| |
| typedef ctype<_CharT> _Ctype; |
| |
| const _Ctype& __ctp = |
| _RWSTD_USE_FACET (_Ctype, _RW::__rw_get_locale (__cat)); |
| |
| for (_SizeT __i = 0; __i != __src_len; ++__i) |
| __dst_first [__i] = __ctp.widen (__text [__i]); |
| |
| return __result_str; |
| } |
| |
| case codecvt_base::partial: |
| // should not happen (bad catalog?) |
| default: |
| break; |
| } |
| } |
| return __dfault; |
| } |
| |
| |
| // outlined to avoid generating a vtable in each translation unit |
| // that uses the class |
| template <class _CharT> |
| /* virtual */ messages_byname<_CharT>:: |
| ~messages_byname () |
| { |
| // no-op |
| } |
| |
| |
| } // namespace std |