1// std::numpunct implementation details, DragonFly version -*- C++ -*-
2
3// Copyright (C) 2015-2022 Free Software Foundation, Inc.
4//
5// This file is part of the GNU ISO C++ Library.  This library is free
6// software; you can redistribute it and/or modify it under the
7// terms of the GNU General Public License as published by the
8// Free Software Foundation; either version 3, or (at your option)
9// any later version.
10
11// This library is distributed in the hope that it will be useful,
12// but WITHOUT ANY WARRANTY; without even the implied warranty of
13// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14// GNU General Public License for more details.
15
16// Under Section 7 of GPL version 3, you are granted additional
17// permissions described in the GCC Runtime Library Exception, version
18// 3.1, as published by the Free Software Foundation.
19
20// You should have received a copy of the GNU General Public License and
21// a copy of the GCC Runtime Library Exception along with this program;
22// see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
23// <http://www.gnu.org/licenses/>.
24
25//
26// ISO C++ 14882: 22.2.3.1.2  numpunct virtual functions
27//
28
29// Written by Benjamin Kosnik <bkoz@redhat.com>
30// Modified for DragonFly by John Marino <gnugcc@marino.st>
31
32#include <locale>
33#include <cstring>
34
35#include "xlocale_port.h"
36
37namespace std _GLIBCXX_VISIBILITY(default)
38{
39_GLIBCXX_BEGIN_NAMESPACE_VERSION
40
41  template<>
42    void
43    numpunct<char>::_M_initialize_numpunct(__c_locale __cloc)
44    {
45      if (!_M_data)
46	_M_data = new __numpunct_cache<char>;
47
48      if (!__cloc)
49	{
50	  // "C" locale
51	  _M_data->_M_grouping = "";
52	  _M_data->_M_grouping_size = 0;
53	  _M_data->_M_use_grouping = false;
54
55	  _M_data->_M_decimal_point = '.';
56	  _M_data->_M_thousands_sep = ',';
57
58	  for (size_t __i = 0; __i < __num_base::_S_oend; ++__i)
59	    _M_data->_M_atoms_out[__i] = __num_base::_S_atoms_out[__i];
60
61	  for (size_t __j = 0; __j < __num_base::_S_iend; ++__j)
62	    _M_data->_M_atoms_in[__j] = __num_base::_S_atoms_in[__j];
63	}
64      else
65	{
66	  // Named locale.
67	  lconv* lc = localeconv_l((locale_t) __cloc);
68
69	  // Decimal point should always be defined, but check null anyway
70	  if (lc->decimal_point == NULL)
71	    {
72	      // Not defined, so use "C" locale default
73	      _M_data->_M_decimal_point = '.';
74	    }
75	  else
76	    {
77	      _M_data->_M_decimal_point = lc->decimal_point[0];
78	    }
79	  // Check for NULL, which implies no grouping.
80	  if (lc->thousands_sep == NULL || lc->thousands_sep[0] == '\0')
81	    {
82	      // Like in "C" locale.
83	      _M_data->_M_grouping = "";
84	      _M_data->_M_grouping_size = 0;
85	      _M_data->_M_use_grouping = false;
86	      _M_data->_M_thousands_sep = ',';
87	    }
88	  else
89	    {
90	      _M_data->_M_thousands_sep = lc->thousands_sep[0];
91
92	      const char* __src = lc->grouping;
93	      const size_t __len = strlen(__src);
94	      if (__len)
95		{
96		  __try
97		    {
98		      char* __dst = new char[__len + 1];
99		      memcpy(__dst, __src, __len + 1);
100		      _M_data->_M_grouping = __dst;
101		      _M_data->_M_use_grouping = true;
102		    }
103		  __catch(...)
104		    {
105		      delete _M_data;
106		      _M_data = 0;
107		      __throw_exception_again;
108		    }
109		}
110	      else
111		{
112		  _M_data->_M_grouping = "";
113		  _M_data->_M_use_grouping = false;
114		}
115	      _M_data->_M_grouping_size = __len;
116	    }
117	}
118
119      // NB: There is no way to extact this info from posix locales.
120      // _M_truename = __nl_langinfo_l(YESSTR, __cloc);
121      _M_data->_M_truename = "true";
122      _M_data->_M_truename_size = 4;
123      // _M_falsename = __nl_langinfo_l(NOSTR, __cloc);
124      _M_data->_M_falsename = "false";
125      _M_data->_M_falsename_size = 5;
126    }
127
128  template<>
129    numpunct<char>::~numpunct()
130    {
131      if (_M_data->_M_grouping_size)
132	delete [] _M_data->_M_grouping;
133      delete _M_data;
134    }
135
136#ifdef _GLIBCXX_USE_WCHAR_T
137  template<>
138    void
139    numpunct<wchar_t>::_M_initialize_numpunct(__c_locale __cloc)
140    {
141      if (!_M_data)
142	_M_data = new __numpunct_cache<wchar_t>;
143
144      if (!__cloc)
145	{
146	  // "C" locale
147	  _M_data->_M_grouping = "";
148	  _M_data->_M_grouping_size = 0;
149	  _M_data->_M_use_grouping = false;
150
151	  _M_data->_M_decimal_point = L'.';
152	  _M_data->_M_thousands_sep = L',';
153
154	  // Use ctype::widen code without the facet...
155	  for (size_t __i = 0; __i < __num_base::_S_oend; ++__i)
156	    _M_data->_M_atoms_out[__i] =
157	      static_cast<wchar_t>(__num_base::_S_atoms_out[__i]);
158
159	  for (size_t __j = 0; __j < __num_base::_S_iend; ++__j)
160	    _M_data->_M_atoms_in[__j] =
161	      static_cast<wchar_t>(__num_base::_S_atoms_in[__j]);
162	}
163      else
164	{
165	  // Named locale.
166	  lconv* lc = localeconv_l((locale_t) __cloc);
167
168	  // Decimal point should always be defined, but check null anyway
169	  if (lc->decimal_point == NULL)
170	    {
171	      // Not defined, so use "C" locale default
172	      _M_data->_M_decimal_point = L'.';
173	    }
174	  else
175	    {
176	      _M_data->_M_decimal_point = (wchar_t)lc->decimal_point[0];
177	    }
178	  // Check for NULL, which implies no grouping.
179	  if (lc->thousands_sep == NULL || lc->thousands_sep[0] == '\0')
180	    {
181	      // Like in "C" locale.
182	      _M_data->_M_grouping = "";
183	      _M_data->_M_grouping_size = 0;
184	      _M_data->_M_use_grouping = false;
185	      _M_data->_M_thousands_sep = L',';
186	    }
187	  else
188	    {
189	      _M_data->_M_thousands_sep = (wchar_t)lc->thousands_sep[0];
190
191  	      const char* __src = lc->grouping;
192	      const size_t __len = strlen(__src);
193	      if (__len)
194		{
195		  __try
196		    {
197		      char* __dst = new char[__len + 1];
198		      memcpy(__dst, __src, __len + 1);
199		      _M_data->_M_grouping = __dst;
200		    }
201		  __catch(...)
202		    {
203		      delete _M_data;
204		      _M_data = 0;
205		      __throw_exception_again;
206		    }
207		}
208	      else
209		{
210		  _M_data->_M_grouping = "";
211		  _M_data->_M_use_grouping = false;
212		}
213	      _M_data->_M_grouping_size = __len;
214	    }
215	}
216
217      // NB: There is no way to extact this info from posix locales.
218      // _M_truename = __nl_langinfo_l(YESSTR, __cloc);
219      _M_data->_M_truename = L"true";
220      _M_data->_M_truename_size = 4;
221      // _M_falsename = __nl_langinfo_l(NOSTR, __cloc);
222      _M_data->_M_falsename = L"false";
223      _M_data->_M_falsename_size = 5;
224    }
225
226  template<>
227    numpunct<wchar_t>::~numpunct()
228    {
229      if (_M_data->_M_grouping_size)
230	delete [] _M_data->_M_grouping;
231      delete _M_data;
232    }
233 #endif
234
235_GLIBCXX_END_NAMESPACE_VERSION
236} // namespace
237