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authorobrien <obrien@FreeBSD.org>2002-05-28 16:16:03 +0000
committerobrien <obrien@FreeBSD.org>2002-05-28 16:16:03 +0000
commit0895e1acb698e05d503c26bec5471de2e88b7d93 (patch)
tree7b14e1142a8f8cf48f311f5246aa3b355f2380b6 /contrib/libstdc++/src/locale.cc
parentefbfe7b228c18b8cc364aabaefd6f8253bc6b5ad (diff)
downloadFreeBSD-src-0895e1acb698e05d503c26bec5471de2e88b7d93.zip
FreeBSD-src-0895e1acb698e05d503c26bec5471de2e88b7d93.tar.gz
Gcc 3.1.0 pre-release's C++ support bits from the FSF anoncvs repo
on 9-May-2002 15:57:15 EDT.
Diffstat (limited to 'contrib/libstdc++/src/locale.cc')
-rw-r--r--contrib/libstdc++/src/locale.cc588
1 files changed, 588 insertions, 0 deletions
diff --git a/contrib/libstdc++/src/locale.cc b/contrib/libstdc++/src/locale.cc
new file mode 100644
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+++ b/contrib/libstdc++/src/locale.cc
@@ -0,0 +1,588 @@
+// Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002
+// 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 2, 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.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING. If not, write to the Free
+// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
+// USA.
+
+// As a special exception, you may use this file as part of a free software
+// library without restriction. Specifically, if other files instantiate
+// templates or use macros or inline functions from this file, or you compile
+// this file and link it with other files to produce an executable, this
+// file does not by itself cause the resulting executable to be covered by
+// the GNU General Public License. This exception does not however
+// invalidate any other reasons why the executable file might be covered by
+// the GNU General Public License.
+
+#include <clocale>
+#include <cstring>
+#include <cassert>
+#include <cctype>
+#include <cwctype> // For towupper, etc.
+#include <limits>
+#include <exception>
+#include <locale>
+#include <istream>
+#include <ostream>
+#include <bits/atomicity.h>
+
+namespace std
+{
+ // Defined in globals.cc.
+ extern locale c_locale;
+ extern locale::_Impl c_locale_impl;
+ extern locale::facet** facet_vec;
+
+ // Definitions for static const data members of locale.
+ const locale::category locale::none;
+ const locale::category locale::ctype;
+ const locale::category locale::numeric;
+ const locale::category locale::collate;
+ const locale::category locale::time;
+ const locale::category locale::monetary;
+ const locale::category locale::messages;
+ const locale::category locale::all;
+
+ locale::_Impl* locale::_S_classic;
+ locale::_Impl* locale::_S_global;
+ const size_t locale::_S_num_categories;
+
+ // Definitions for locale::id of standard facets that are specialized.
+ locale::id ctype<char>::id;
+ locale::id codecvt<char, char, mbstate_t>::id;
+
+#ifdef _GLIBCPP_USE_WCHAR_T
+ locale::id ctype<wchar_t>::id;
+ locale::id codecvt<wchar_t, char, mbstate_t>::id;
+#endif
+
+ // Definitions for static const data members of locale::id
+ _Atomic_word locale::id::_S_highwater; // init'd to 0 by linker
+
+ // Definitions for static const data members of locale::_Impl
+ const locale::id* const
+ locale::_Impl::_S_id_ctype[] =
+ {
+ &std::ctype<char>::id,
+ &codecvt<char, char, mbstate_t>::id,
+#ifdef _GLIBCPP_USE_WCHAR_T
+ &std::ctype<wchar_t>::id,
+ &codecvt<wchar_t, char, mbstate_t>::id,
+#endif
+ 0
+ };
+
+ const locale::id* const
+ locale::_Impl::_S_id_numeric[] =
+ {
+ &num_get<char>::id,
+ &num_put<char>::id,
+ &numpunct<char>::id,
+#ifdef _GLIBCPP_USE_WCHAR_T
+ &num_get<wchar_t>::id,
+ &num_put<wchar_t>::id,
+ &numpunct<wchar_t>::id,
+#endif
+ 0
+ };
+
+ const locale::id* const
+ locale::_Impl::_S_id_collate[] =
+ {
+ &std::collate<char>::id,
+#ifdef _GLIBCPP_USE_WCHAR_T
+ &std::collate<wchar_t>::id,
+#endif
+ 0
+ };
+
+ const locale::id* const
+ locale::_Impl::_S_id_time[] =
+ {
+ &__timepunct<char>::id,
+ &time_get<char>::id,
+ &time_put<char>::id,
+#ifdef _GLIBCPP_USE_WCHAR_T
+ &__timepunct<wchar_t>::id,
+ &time_get<wchar_t>::id,
+ &time_put<wchar_t>::id,
+#endif
+ 0
+ };
+
+ const locale::id* const
+ locale::_Impl::_S_id_monetary[] =
+ {
+ &money_get<char>::id,
+ &money_put<char>::id,
+ &moneypunct<char, false>::id,
+ &moneypunct<char, true >::id,
+#ifdef _GLIBCPP_USE_WCHAR_T
+ &money_get<wchar_t>::id,
+ &money_put<wchar_t>::id,
+ &moneypunct<wchar_t, false>::id,
+ &moneypunct<wchar_t, true >::id,
+#endif
+ 0
+ };
+
+ const locale::id* const
+ locale::_Impl::_S_id_messages[] =
+ {
+ &std::messages<char>::id,
+#ifdef _GLIBCPP_USE_WCHAR_T
+ &std::messages<wchar_t>::id,
+#endif
+ 0
+ };
+
+ const locale::id* const* const
+ locale::_Impl::_S_facet_categories[] =
+ {
+ // Order must match the decl order in class locale.
+ locale::_Impl::_S_id_ctype,
+ locale::_Impl::_S_id_numeric,
+ locale::_Impl::_S_id_collate,
+ locale::_Impl::_S_id_monetary,
+ locale::_Impl::_S_id_time,
+ locale::_Impl::_S_id_messages,
+ 0
+ };
+
+ locale::~locale() throw()
+ { _M_impl->_M_remove_reference(); }
+
+ 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;
+ }
+ }
+
+ locale::locale() throw()
+ {
+ _S_initialize();
+ (_M_impl = _S_global)->_M_add_reference();
+ }
+
+ locale::locale(const locale& __other) throw()
+ { (_M_impl = __other._M_impl)->_M_add_reference(); }
+
+ // This is used to initialize global and classic locales, and
+ // assumes that the _Impl objects are constructed correctly.
+ locale::locale(_Impl* __ip) throw() : _M_impl(__ip)
+ { }
+
+ locale::locale(const char* __s)
+ {
+ if (__s)
+ {
+ _S_initialize();
+ if (strcmp(__s, "C") == 0 || strcmp(__s, "POSIX") == 0)
+ (_M_impl = _S_classic)->_M_add_reference();
+ else if (strcmp(__s, "") == 0)
+ _M_impl = new _Impl(setlocale(LC_ALL, __s), 1);
+ else
+ _M_impl = new _Impl(__s, 1);
+ }
+ else
+ __throw_runtime_error("attempt to create locale from NULL name");
+ }
+
+ locale::locale(const locale& __base, const char* __s, category __cat)
+ {
+ // 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_coalesce(__base, __add, __cat); }
+
+ bool
+ locale::operator==(const locale& __rhs) const throw()
+ {
+ string __name = this->name();
+ return (_M_impl == __rhs._M_impl
+ || (__name != "*" && __name == __rhs.name()));
+ }
+
+ const locale&
+ locale::operator=(const locale& __other) throw()
+ {
+ __other._M_impl->_M_add_reference();
+ _M_impl->_M_remove_reference();
+ _M_impl = __other._M_impl;
+ return *this;
+ }
+
+ locale
+ locale::global(const locale& __other)
+ {
+ // XXX MT
+ _S_initialize();
+ _Impl* __old = _S_global;
+ __other._M_impl->_M_add_reference();
+ _S_global = __other._M_impl;
+ if (_S_global->_M_check_same_name()
+ && (strcmp(_S_global->_M_names[0], "*") != 0))
+ setlocale(LC_ALL, __other.name().c_str());
+
+ // Reference count sanity check: one reference removed for the
+ // subsition of __other locale, one added by return-by-value. Net
+ // difference: zero. When the returned locale object's destrutor
+ // is called, then the reference count is decremented and possibly
+ // destroyed.
+ return locale(__old);
+ }
+
+ string
+ locale::name() const
+ {
+ // Need some kind of separator character. This one was pretty much
+ // arbitrarily chosen as to not conflict with glibc locales: the
+ // exact formatting is not set in stone.
+ const char __separator = '|';
+
+ string __ret;
+ if (_M_impl->_M_check_same_name())
+ __ret = _M_impl->_M_names[0];
+ else
+ {
+ for (size_t i = 0; i < _S_num_categories; ++i)
+ {
+ __ret += __separator;
+ __ret += _M_impl->_M_names[i];
+ }
+ }
+ return __ret;
+ }
+
+ const locale&
+ locale::classic()
+ {
+ static _STL_mutex_lock __lock __STL_MUTEX_INITIALIZER;
+ _STL_auto_lock __auto(__lock);
+
+ if (!_S_classic)
+ {
+ try
+ {
+ // 26 Standard facets, 2 references.
+ // One reference for _M_classic, one for _M_global
+ facet** f = new(&facet_vec) facet*[_GLIBCPP_NUM_FACETS];
+ for (size_t __i = 0; __i < _GLIBCPP_NUM_FACETS; ++__i)
+ f[__i] = 0;
+
+ _S_classic = new (&c_locale_impl) _Impl(f, 2, true);
+ _S_global = _S_classic;
+ new (&c_locale) locale(_S_classic);
+ }
+ catch(...)
+ {
+ // Just call destructor, so that locale_impl_c's memory is
+ // not deallocated via a call to delete.
+ if (_S_classic)
+ _S_classic->~_Impl();
+ _S_classic = _S_global = 0;
+ __throw_exception_again;
+ }
+ }
+ return c_locale;
+ }
+
+ locale::category
+ locale::_S_normalize_category(category __cat)
+ {
+ int __ret = 0;
+ if (__cat == none || (__cat & all) && !(__cat & ~all))
+ __ret = __cat;
+ else
+ {
+ // NB: May be a C-style "LC_ALL" category; convert.
+ switch (__cat)
+ {
+ case LC_COLLATE:
+ __ret = collate;
+ break;
+ case LC_CTYPE:
+ __ret = ctype;
+ break;
+ case LC_MONETARY:
+ __ret = monetary;
+ break;
+ case LC_NUMERIC:
+ __ret = numeric;
+ break;
+ case LC_TIME:
+ __ret = time;
+ break;
+#ifdef _GLIBCPP_HAVE_LC_MESSAGES
+ case LC_MESSAGES:
+ __ret = messages;
+ break;
+#endif
+ case LC_ALL:
+ __ret = all;
+ break;
+ default:
+ __throw_runtime_error("bad locale category");
+ }
+ }
+ return __ret;
+ }
+
+ __c_locale
+ locale::facet::_S_c_locale;
+
+ locale::facet::
+ ~facet() { }
+
+ locale::facet::
+ facet(size_t __refs) throw() : _M_references(__refs)
+ {
+ if (!_S_c_locale)
+ _S_create_c_locale(_S_c_locale, "C");
+ }
+
+ void
+ locale::facet::
+ _M_add_reference() throw()
+ { __atomic_add(&_M_references, 1); }
+
+ void
+ locale::facet::
+ _M_remove_reference() throw()
+ {
+ if (__exchange_and_add(&_M_references, -1) == 0)
+ {
+ try
+ { delete this; }
+ catch (...)
+ { }
+ }
+ }
+
+ locale::id::id()
+ { }
+
+ // Definitions for static const data members of ctype_base.
+ const ctype_base::mask ctype_base::space;
+ const ctype_base::mask ctype_base::print;
+ const ctype_base::mask ctype_base::cntrl;
+ const ctype_base::mask ctype_base::upper;
+ const ctype_base::mask ctype_base::lower;
+ const ctype_base::mask ctype_base::alpha;
+ const ctype_base::mask ctype_base::digit;
+ const ctype_base::mask ctype_base::punct;
+ const ctype_base::mask ctype_base::xdigit;
+ const ctype_base::mask ctype_base::alnum;
+ const ctype_base::mask ctype_base::graph;
+
+ // Platform-specific initialization code for ctype tables.
+ #include <bits/ctype_noninline.h>
+
+ const size_t ctype<char>::table_size;
+
+ ctype<char>::~ctype()
+ {
+ if (_M_c_locale_ctype != _S_c_locale)
+ _S_destroy_c_locale(_M_c_locale_ctype);
+ if (_M_del)
+ delete[] this->table();
+ }
+
+ // These are dummy placeholders as these virtual functions are never called.
+ bool
+ ctype<char>::do_is(mask, char_type) const
+ { return false; }
+
+ const char*
+ ctype<char>::do_is(const char_type* __c, const char_type*, mask*) const
+ { return __c; }
+
+ const char*
+ ctype<char>::do_scan_is(mask, const char_type* __c, const char_type*) const
+ { return __c; }
+
+ const char*
+ ctype<char>::do_scan_not(mask, const char_type* __c, const char_type*) const
+ { return __c; }
+
+ char
+ ctype<char>::do_widen(char __c) const
+ { return __c; }
+
+ const char*
+ ctype<char>::do_widen(const char* __lo, const char* __hi, char* __dest) const
+ {
+ memcpy(__dest, __lo, __hi - __lo);
+ return __hi;
+ }
+
+ char
+ ctype<char>::do_narrow(char __c, char /*__dfault*/) const
+ { return __c; }
+
+ const char*
+ ctype<char>::do_narrow(const char* __lo, const char* __hi,
+ char /*__dfault*/, char* __dest) const
+ {
+ memcpy(__dest, __lo, __hi - __lo);
+ return __hi;
+ }
+
+#ifdef _GLIBCPP_USE_WCHAR_T
+ ctype<wchar_t>::ctype(size_t __refs)
+ : __ctype_abstract_base<wchar_t>(__refs)
+ { _M_c_locale_ctype = _S_c_locale; }
+
+ ctype<wchar_t>::ctype(__c_locale __cloc, size_t __refs)
+ : __ctype_abstract_base<wchar_t>(__refs)
+ { _M_c_locale_ctype = _S_clone_c_locale(__cloc); }
+
+ ctype<wchar_t>::~ctype()
+ {
+ if (_M_c_locale_ctype != _S_c_locale)
+ _S_destroy_c_locale(_M_c_locale_ctype);
+ }
+
+ template<>
+ ctype_byname<wchar_t>::ctype_byname(const char* __s, size_t __refs)
+ : ctype<wchar_t>(__refs)
+ {
+ if (_M_c_locale_ctype != _S_c_locale)
+ _S_destroy_c_locale(_M_c_locale_ctype);
+ _S_create_c_locale(_M_c_locale_ctype, __s);
+ }
+#endif
+
+ // Definitions for static const data members of time_base
+ template<>
+ const char*
+ __timepunct<char>::_S_timezones[14] =
+ {
+ "GMT", "HST", "AKST", "PST", "MST", "CST", "EST", "AST", "NST", "CET",
+ "IST", "EET", "CST", "JST"
+ };
+
+#ifdef _GLIBCPP_USE_WCHAR_T
+ template<>
+ const wchar_t*
+ __timepunct<wchar_t>::_S_timezones[14] =
+ {
+ L"GMT", L"HST", L"AKST", L"PST", L"MST", L"CST", L"EST", L"AST",
+ L"NST", L"CET", L"IST", L"EET", L"CST", L"JST"
+ };
+#endif
+
+ // Definitions for static const data members of money_base
+ const money_base::pattern
+ money_base::_S_default_pattern = { {symbol, sign, none, value} };
+
+ template<>
+ const ctype<char>&
+ use_facet<ctype<char> >(const locale& __loc)
+ {
+ size_t __i = ctype<char>::id._M_id();
+ const locale::_Impl* __tmp = __loc._M_impl;
+ return static_cast<const ctype<char>&>(*(__tmp->_M_facets[__i]));
+ }
+
+#ifdef _GLIBCPP_USE_WCHAR_T
+ template<>
+ const ctype<wchar_t>&
+ use_facet<ctype<wchar_t> >(const locale& __loc)
+ {
+ size_t __i = ctype<wchar_t>::id._M_id();
+ const locale::_Impl* __tmp = __loc._M_impl;
+ return static_cast<const ctype<wchar_t>&>(*(__tmp->_M_facets[__i]));
+ }
+#endif
+
+ const char __num_base::_S_atoms[] = "0123456789eEabcdfABCDF";
+
+ bool
+ __num_base::_S_format_float(const ios_base& __io, char* __fptr, char __mod,
+ streamsize __prec)
+ {
+ bool __incl_prec = false;
+ ios_base::fmtflags __flags = __io.flags();
+ *__fptr++ = '%';
+ // [22.2.2.2.2] Table 60
+ if (__flags & ios_base::showpos)
+ *__fptr++ = '+';
+ if (__flags & ios_base::showpoint)
+ *__fptr++ = '#';
+ // As per [22.2.2.2.2.11]
+ if (__flags & ios_base::fixed || __prec > 0)
+ {
+ *__fptr++ = '.';
+ *__fptr++ = '*';
+ __incl_prec = true;
+ }
+ if (__mod)
+ *__fptr++ = __mod;
+ ios_base::fmtflags __fltfield = __flags & ios_base::floatfield;
+ // [22.2.2.2.2] Table 58
+ if (__fltfield == ios_base::fixed)
+ *__fptr++ = 'f';
+ else if (__fltfield == ios_base::scientific)
+ *__fptr++ = (__flags & ios_base::uppercase) ? 'E' : 'e';
+ else
+ *__fptr++ = (__flags & ios_base::uppercase) ? 'G' : 'g';
+ *__fptr = '\0';
+ return __incl_prec;
+ }
+
+ void
+ __num_base::_S_format_int(const ios_base& __io, char* __fptr, char __mod,
+ char __modl)
+ {
+ ios_base::fmtflags __flags = __io.flags();
+ *__fptr++ = '%';
+ // [22.2.2.2.2] Table 60
+ if (__flags & ios_base::showpos)
+ *__fptr++ = '+';
+ if (__flags & ios_base::showbase)
+ *__fptr++ = '#';
+ *__fptr++ = 'l';
+
+ // For long long types.
+ if (__modl)
+ *__fptr++ = __modl;
+
+ ios_base::fmtflags __bsefield = __flags & ios_base::basefield;
+ if (__bsefield == ios_base::hex)
+ *__fptr++ = (__flags & ios_base::uppercase) ? 'X' : 'x';
+ else if (__bsefield == ios_base::oct)
+ *__fptr++ = 'o';
+ else
+ *__fptr++ = __mod;
+ *__fptr = '\0';
+ }
+} // namespace std
+
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