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authorupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
committerupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
commit554fd8c5195424bdbcabf5de30fdc183aba391bd (patch)
tree976dc5ab7fddf506dadce60ae936f43f58787092 /libstdc++-v3/src/localename.cc
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Diffstat (limited to 'libstdc++-v3/src/localename.cc')
-rw-r--r--libstdc++-v3/src/localename.cc354
1 files changed, 354 insertions, 0 deletions
diff --git a/libstdc++-v3/src/localename.cc b/libstdc++-v3/src/localename.cc
new file mode 100644
index 000000000..52e228281
--- /dev/null
+++ b/libstdc++-v3/src/localename.cc
@@ -0,0 +1,354 @@
+// Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
+// 2006, 2007, 2008, 2009, 2010
+// Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// Under Section 7 of GPL version 3, you are granted additional
+// permissions described in the GCC Runtime Library Exception, version
+// 3.1, as published by the Free Software Foundation.
+
+// You should have received a copy of the GNU General Public License and
+// a copy of the GCC Runtime Library Exception along with this program;
+// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+// <http://www.gnu.org/licenses/>.
+
+#include <clocale>
+#include <cstring>
+#include <cstdlib>
+#include <locale>
+
+namespace std _GLIBCXX_VISIBILITY(default)
+{
+_GLIBCXX_BEGIN_NAMESPACE_VERSION
+
+ using namespace __gnu_cxx;
+
+ locale::locale(const char* __s) : _M_impl(0)
+ {
+ if (__s)
+ {
+ _S_initialize();
+ if (std::strcmp(__s, "C") == 0 || std::strcmp(__s, "POSIX") == 0)
+ (_M_impl = _S_classic)->_M_add_reference();
+ else if (std::strcmp(__s, "") != 0)
+ _M_impl = new _Impl(__s, 1);
+ else
+ {
+ // Get it from the environment.
+ char* __env = std::getenv("LC_ALL");
+ // If LC_ALL is set we are done.
+ if (__env && std::strcmp(__env, "") != 0)
+ {
+ if (std::strcmp(__env, "C") == 0
+ || std::strcmp(__env, "POSIX") == 0)
+ (_M_impl = _S_classic)->_M_add_reference();
+ else
+ _M_impl = new _Impl(__env, 1);
+ }
+ else
+ {
+ // LANG may set a default different from "C".
+ string __lang;
+ __env = std::getenv("LANG");
+ if (!__env || std::strcmp(__env, "") == 0
+ || std::strcmp(__env, "C") == 0
+ || std::strcmp(__env, "POSIX") == 0)
+ __lang = "C";
+ else
+ __lang = __env;
+
+ // Scan the categories looking for the first one
+ // different from LANG.
+ size_t __i = 0;
+ if (__lang == "C")
+ for (; __i < _S_categories_size; ++__i)
+ {
+ __env = std::getenv(_S_categories[__i]);
+ if (__env && std::strcmp(__env, "") != 0
+ && std::strcmp(__env, "C") != 0
+ && std::strcmp(__env, "POSIX") != 0)
+ break;
+ }
+ else
+ for (; __i < _S_categories_size; ++__i)
+ {
+ __env = std::getenv(_S_categories[__i]);
+ if (__env && std::strcmp(__env, "") != 0
+ && __lang != __env)
+ break;
+ }
+
+ // If one is found, build the complete string of
+ // the form LC_CTYPE=xxx;LC_NUMERIC=yyy; and so on...
+ if (__i < _S_categories_size)
+ {
+ string __str;
+ __str.reserve(128);
+ for (size_t __j = 0; __j < __i; ++__j)
+ {
+ __str += _S_categories[__j];
+ __str += '=';
+ __str += __lang;
+ __str += ';';
+ }
+ __str += _S_categories[__i];
+ __str += '=';
+ __str += __env;
+ __str += ';';
+ ++__i;
+ for (; __i < _S_categories_size; ++__i)
+ {
+ __env = std::getenv(_S_categories[__i]);
+ __str += _S_categories[__i];
+ if (!__env || std::strcmp(__env, "") == 0)
+ {
+ __str += '=';
+ __str += __lang;
+ __str += ';';
+ }
+ else if (std::strcmp(__env, "C") == 0
+ || std::strcmp(__env, "POSIX") == 0)
+ __str += "=C;";
+ else
+ {
+ __str += '=';
+ __str += __env;
+ __str += ';';
+ }
+ }
+ __str.erase(__str.end() - 1);
+ _M_impl = new _Impl(__str.c_str(), 1);
+ }
+ // ... otherwise either an additional instance of
+ // the "C" locale or LANG.
+ else if (__lang == "C")
+ (_M_impl = _S_classic)->_M_add_reference();
+ else
+ _M_impl = new _Impl(__lang.c_str(), 1);
+ }
+ }
+ }
+ else
+ __throw_runtime_error(__N("locale::locale null not valid"));
+ }
+
+ locale::locale(const locale& __base, const char* __s, category __cat)
+ : _M_impl(0)
+ {
+ // NB: There are complicated, yet more efficient ways to do
+ // this. Building up locales on a per-category way is tedious, so
+ // let's do it this way until people complain.
+ locale __add(__s);
+ _M_coalesce(__base, __add, __cat);
+ }
+
+ locale::locale(const locale& __base, const locale& __add, category __cat)
+ : _M_impl(0)
+ { _M_coalesce(__base, __add, __cat); }
+
+ void
+ locale::_M_coalesce(const locale& __base, const locale& __add,
+ category __cat)
+ {
+ __cat = _S_normalize_category(__cat);
+ _M_impl = new _Impl(*__base._M_impl, 1);
+
+ __try
+ { _M_impl->_M_replace_categories(__add._M_impl, __cat); }
+ __catch(...)
+ {
+ _M_impl->_M_remove_reference();
+ __throw_exception_again;
+ }
+ }
+
+ // Construct named _Impl.
+ locale::_Impl::
+ _Impl(const char* __s, size_t __refs)
+ : _M_refcount(__refs), _M_facets(0), _M_facets_size(_GLIBCXX_NUM_FACETS),
+ _M_caches(0), _M_names(0)
+ {
+ // Initialize the underlying locale model, which also checks to
+ // see if the given name is valid.
+ __c_locale __cloc;
+ locale::facet::_S_create_c_locale(__cloc, __s);
+ __c_locale __clocm = __cloc;
+
+ __try
+ {
+ _M_facets = new const facet*[_M_facets_size];
+ for (size_t __i = 0; __i < _M_facets_size; ++__i)
+ _M_facets[__i] = 0;
+ _M_caches = new const facet*[_M_facets_size];
+ for (size_t __j = 0; __j < _M_facets_size; ++__j)
+ _M_caches[__j] = 0;
+ _M_names = new char*[_S_categories_size];
+ for (size_t __k = 0; __k < _S_categories_size; ++__k)
+ _M_names[__k] = 0;
+
+ // Name the categories.
+ const char* __smon = __s;
+ const size_t __len = std::strlen(__s);
+ if (!std::memchr(__s, ';', __len))
+ {
+ _M_names[0] = new char[__len + 1];
+ std::memcpy(_M_names[0], __s, __len + 1);
+ }
+ else
+ {
+ const char* __end = __s;
+ bool __found_ctype = false;
+ bool __found_monetary = false;
+ size_t __ci = 0, __mi = 0;
+ for (size_t __i = 0; __i < _S_categories_size; ++__i)
+ {
+ const char* __beg = std::strchr(__end + 1, '=') + 1;
+ __end = std::strchr(__beg, ';');
+ if (!__end)
+ __end = __s + __len;
+ _M_names[__i] = new char[__end - __beg + 1];
+ std::memcpy(_M_names[__i], __beg, __end - __beg);
+ _M_names[__i][__end - __beg] = '\0';
+ if (!__found_ctype
+ && *(__beg - 2) == 'E' && *(__beg - 3) == 'P')
+ {
+ __found_ctype = true;
+ __ci = __i;
+ }
+ else if (!__found_monetary && *(__beg - 2) == 'Y')
+ {
+ __found_monetary = true;
+ __mi = __i;
+ }
+ }
+
+ if (std::strcmp(_M_names[__ci], _M_names[__mi]))
+ {
+ __smon = _M_names[__mi];
+ __clocm = locale::facet::_S_lc_ctype_c_locale(__cloc,
+ __smon);
+ }
+ }
+
+ // Construct all standard facets and add them to _M_facets.
+ _M_init_facet(new std::ctype<char>(__cloc, 0, false));
+ _M_init_facet(new codecvt<char, char, mbstate_t>(__cloc));
+ _M_init_facet(new numpunct<char>(__cloc));
+ _M_init_facet(new num_get<char>);
+ _M_init_facet(new num_put<char>);
+ _M_init_facet(new std::collate<char>(__cloc));
+ _M_init_facet(new moneypunct<char, false>(__cloc, 0));
+ _M_init_facet(new moneypunct<char, true>(__cloc, 0));
+ _M_init_facet(new money_get<char>);
+ _M_init_facet(new money_put<char>);
+ _M_init_facet(new __timepunct<char>(__cloc, __s));
+ _M_init_facet(new time_get<char>);
+ _M_init_facet(new time_put<char>);
+ _M_init_facet(new std::messages<char>(__cloc, __s));
+
+#ifdef _GLIBCXX_USE_WCHAR_T
+ _M_init_facet(new std::ctype<wchar_t>(__cloc));
+ _M_init_facet(new codecvt<wchar_t, char, mbstate_t>(__cloc));
+ _M_init_facet(new numpunct<wchar_t>(__cloc));
+ _M_init_facet(new num_get<wchar_t>);
+ _M_init_facet(new num_put<wchar_t>);
+ _M_init_facet(new std::collate<wchar_t>(__cloc));
+ _M_init_facet(new moneypunct<wchar_t, false>(__clocm, __smon));
+ _M_init_facet(new moneypunct<wchar_t, true>(__clocm, __smon));
+ _M_init_facet(new money_get<wchar_t>);
+ _M_init_facet(new money_put<wchar_t>);
+ _M_init_facet(new __timepunct<wchar_t>(__cloc, __s));
+ _M_init_facet(new time_get<wchar_t>);
+ _M_init_facet(new time_put<wchar_t>);
+ _M_init_facet(new std::messages<wchar_t>(__cloc, __s));
+#endif
+ locale::facet::_S_destroy_c_locale(__cloc);
+ if (__clocm != __cloc)
+ locale::facet::_S_destroy_c_locale(__clocm);
+ }
+ __catch(...)
+ {
+ locale::facet::_S_destroy_c_locale(__cloc);
+ if (__clocm != __cloc)
+ locale::facet::_S_destroy_c_locale(__clocm);
+ this->~_Impl();
+ __throw_exception_again;
+ }
+ }
+
+ void
+ locale::_Impl::
+ _M_replace_categories(const _Impl* __imp, category __cat)
+ {
+ category __mask = 1;
+ if (!_M_names[0] || !__imp->_M_names[0])
+ {
+ if (_M_names[0])
+ {
+ delete [] _M_names[0];
+ _M_names[0] = 0; // Unnamed.
+ }
+
+ for (size_t __ix = 0; __ix < _S_categories_size; ++__ix, __mask <<= 1)
+ {
+ if (__mask & __cat)
+ // Need to replace entry in _M_facets with other locale's info.
+ _M_replace_category(__imp, _S_facet_categories[__ix]);
+ }
+ }
+ else
+ {
+ if (!_M_names[1])
+ {
+ // A full set of _M_names must be prepared, all identical
+ // to _M_names[0] to begin with. Then, below, a few will
+ // be replaced by the corresponding __imp->_M_names. I.e.,
+ // not a "simple" locale anymore (see locale::operator==).
+ const size_t __len = std::strlen(_M_names[0]) + 1;
+ for (size_t __i = 1; __i < _S_categories_size; ++__i)
+ {
+ _M_names[__i] = new char[__len];
+ std::memcpy(_M_names[__i], _M_names[0], __len);
+ }
+ }
+
+ for (size_t __ix = 0; __ix < _S_categories_size; ++__ix, __mask <<= 1)
+ {
+ if (__mask & __cat)
+ {
+ // Need to replace entry in _M_facets with other locale's info.
+ _M_replace_category(__imp, _S_facet_categories[__ix]);
+
+ // FIXME: Hack for libstdc++/29217: the numerical encodings
+ // of the time and collate categories are swapped vs the
+ // order of the names in locale::_S_categories. We'd like to
+ // adjust the former (the latter is dictated by compatibility
+ // with glibc) but we can't for binary compatibility.
+ size_t __ix_name = __ix;
+ if (__ix == 2 || __ix == 3)
+ __ix_name = 5 - __ix;
+
+ char* __src = __imp->_M_names[__ix_name] ?
+ __imp->_M_names[__ix_name] : __imp->_M_names[0];
+ const size_t __len = std::strlen(__src) + 1;
+ char* __new = new char[__len];
+ std::memcpy(__new, __src, __len);
+ delete [] _M_names[__ix_name];
+ _M_names[__ix_name] = __new;
+ }
+ }
+ }
+ }
+
+_GLIBCXX_END_NAMESPACE_VERSION
+} // namespace