| blob | f32ad7fdb1df39bbf3fff465a9b9df2ff6f901f2 |
1 // Locale support -*- C++ -*-
3 // Copyright (C) 2007, 2008, 2009 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 2, or (at your option)
9 // any later version.
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.
16 // You should have received a copy of the GNU General Public License along
17 // with this library; see the file COPYING. If not, write to the Free
18 // Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
19 // USA.
21 // As a special exception, you may use this file as part of a free software
22 // library without restriction. Specifically, if other files instantiate
23 // templates or use macros or inline functions from this file, or you compile
24 // this file and link it with other files to produce an executable, this
25 // file does not by itself cause the resulting executable to be covered by
26 // the GNU General Public License. This exception does not however
27 // invalidate any other reasons why the executable file might be covered by
28 // the GNU General Public License.
30 /** @file locale_facets_nonio.tcc
31 * This is an internal header file, included by other library headers.
32 * You should not attempt to use it directly.
33 */
35 #ifndef _LOCALE_FACETS_NONIO_TCC
36 #define _LOCALE_FACETS_NONIO_TCC 1
38 #pragma GCC system_header
40 _GLIBCXX_BEGIN_NAMESPACE(std)
42 template<typename _CharT, bool _Intl>
43 struct __use_cache<__moneypunct_cache<_CharT, _Intl> >
44 {
45 const __moneypunct_cache<_CharT, _Intl>*
46 operator() (const locale& __loc) const
47 {
48 const size_t __i = moneypunct<_CharT, _Intl>::id._M_id();
49 const locale::facet** __caches = __loc._M_impl->_M_caches;
50 if (!__caches[__i])
51 {
52 __moneypunct_cache<_CharT, _Intl>* __tmp = NULL;
53 __try
54 {
55 __tmp = new __moneypunct_cache<_CharT, _Intl>;
56 __tmp->_M_cache(__loc);
57 }
58 __catch(...)
59 {
60 delete __tmp;
61 __throw_exception_again;
62 }
63 __loc._M_impl->_M_install_cache(__tmp, __i);
64 }
65 return static_cast<
66 const __moneypunct_cache<_CharT, _Intl>*>(__caches[__i]);
67 }
68 };
70 template<typename _CharT, bool _Intl>
71 void
72 __moneypunct_cache<_CharT, _Intl>::_M_cache(const locale& __loc)
73 {
74 _M_allocated = true;
76 const moneypunct<_CharT, _Intl>& __mp =
77 use_facet<moneypunct<_CharT, _Intl> >(__loc);
79 _M_grouping_size = __mp.grouping().size();
80 char* __grouping = new char[_M_grouping_size];
81 __mp.grouping().copy(__grouping, _M_grouping_size);
82 _M_grouping = __grouping;
83 _M_use_grouping = (_M_grouping_size
84 && static_cast<signed char>(_M_grouping[0]) > 0
85 && (_M_grouping[0]
86 != __gnu_cxx::__numeric_traits<char>::__max));
88 _M_decimal_point = __mp.decimal_point();
89 _M_thousands_sep = __mp.thousands_sep();
90 _M_frac_digits = __mp.frac_digits();
92 _M_curr_symbol_size = __mp.curr_symbol().size();
93 _CharT* __curr_symbol = new _CharT[_M_curr_symbol_size];
94 __mp.curr_symbol().copy(__curr_symbol, _M_curr_symbol_size);
95 _M_curr_symbol = __curr_symbol;
97 _M_positive_sign_size = __mp.positive_sign().size();
98 _CharT* __positive_sign = new _CharT[_M_positive_sign_size];
99 __mp.positive_sign().copy(__positive_sign, _M_positive_sign_size);
100 _M_positive_sign = __positive_sign;
102 _M_negative_sign_size = __mp.negative_sign().size();
103 _CharT* __negative_sign = new _CharT[_M_negative_sign_size];
104 __mp.negative_sign().copy(__negative_sign, _M_negative_sign_size);
105 _M_negative_sign = __negative_sign;
107 _M_pos_format = __mp.pos_format();
108 _M_neg_format = __mp.neg_format();
110 const ctype<_CharT>& __ct = use_facet<ctype<_CharT> >(__loc);
111 __ct.widen(money_base::_S_atoms,
112 money_base::_S_atoms + money_base::_S_end, _M_atoms);
113 }
115 _GLIBCXX_BEGIN_LDBL_NAMESPACE
117 template<typename _CharT, typename _InIter>
118 template<bool _Intl>
119 _InIter
120 money_get<_CharT, _InIter>::
121 _M_extract(iter_type __beg, iter_type __end, ios_base& __io,
122 ios_base::iostate& __err, string& __units) const
123 {
124 typedef char_traits<_CharT> __traits_type;
125 typedef typename string_type::size_type size_type;
126 typedef money_base::part part;
127 typedef __moneypunct_cache<_CharT, _Intl> __cache_type;
129 const locale& __loc = __io._M_getloc();
130 const ctype<_CharT>& __ctype = use_facet<ctype<_CharT> >(__loc);
132 __use_cache<__cache_type> __uc;
133 const __cache_type* __lc = __uc(__loc);
134 const char_type* __lit = __lc->_M_atoms;
136 // Deduced sign.
137 bool __negative = false;
138 // Sign size.
139 size_type __sign_size = 0;
140 // True if sign is mandatory.
141 const bool __mandatory_sign = (__lc->_M_positive_sign_size
142 && __lc->_M_negative_sign_size);
143 // String of grouping info from thousands_sep plucked from __units.
144 string __grouping_tmp;
145 if (__lc->_M_use_grouping)
146 __grouping_tmp.reserve(32);
147 // Last position before the decimal point.
148 int __last_pos = 0;
149 // Separator positions, then, possibly, fractional digits.
150 int __n = 0;
151 // If input iterator is in a valid state.
152 bool __testvalid = true;
153 // Flag marking when a decimal point is found.
154 bool __testdecfound = false;
156 // The tentative returned string is stored here.
157 string __res;
158 __res.reserve(32);
160 const char_type* __lit_zero = __lit + money_base::_S_zero;
161 const money_base::pattern __p = __lc->_M_neg_format;
162 for (int __i = 0; __i < 4 && __testvalid; ++__i)
163 {
164 const part __which = static_cast<part>(__p.field[__i]);
165 switch (__which)
166 {
167 case money_base::symbol:
168 // According to 22.2.6.1.2, p2, symbol is required
169 // if (__io.flags() & ios_base::showbase), otherwise
170 // is optional and consumed only if other characters
171 // are needed to complete the format.
172 if (__io.flags() & ios_base::showbase || __sign_size > 1
173 || __i == 0
174 || (__i == 1 && (__mandatory_sign
175 || (static_cast<part>(__p.field[0])
176 == money_base::sign)
177 || (static_cast<part>(__p.field[2])
178 == money_base::space)))
179 || (__i == 2 && ((static_cast<part>(__p.field[3])
180 == money_base::value)
181 || (__mandatory_sign
182 && (static_cast<part>(__p.field[3])
183 == money_base::sign)))))
184 {
185 const size_type __len = __lc->_M_curr_symbol_size;
186 size_type __j = 0;
187 for (; __beg != __end && __j < __len
188 && *__beg == __lc->_M_curr_symbol[__j];
189 ++__beg, ++__j);
190 if (__j != __len
191 && (__j || __io.flags() & ios_base::showbase))
192 __testvalid = false;
193 }
194 break;
195 case money_base::sign:
196 // Sign might not exist, or be more than one character long.
197 if (__lc->_M_positive_sign_size && __beg != __end
198 && *__beg == __lc->_M_positive_sign[0])
199 {
200 __sign_size = __lc->_M_positive_sign_size;
201 ++__beg;
202 }
203 else if (__lc->_M_negative_sign_size && __beg != __end
204 && *__beg == __lc->_M_negative_sign[0])
205 {
206 __negative = true;
207 __sign_size = __lc->_M_negative_sign_size;
208 ++__beg;
209 }
210 else if (__lc->_M_positive_sign_size
211 && !__lc->_M_negative_sign_size)
212 // "... if no sign is detected, the result is given the sign
213 // that corresponds to the source of the empty string"
214 __negative = true;
215 else if (__mandatory_sign)
216 __testvalid = false;
217 break;
218 case money_base::value:
219 // Extract digits, remove and stash away the
220 // grouping of found thousands separators.
221 for (; __beg != __end; ++__beg)
222 {
223 const char_type __c = *__beg;
224 const char_type* __q = __traits_type::find(__lit_zero,
225 10, __c);
226 if (__q != 0)
227 {
228 __res += money_base::_S_atoms[__q - __lit];
229 ++__n;
230 }
231 else if (__c == __lc->_M_decimal_point
232 && !__testdecfound)
233 {
234 if (__lc->_M_frac_digits <= 0)
235 break;
237 __last_pos = __n;
238 __n = 0;
239 __testdecfound = true;
240 }
241 else if (__lc->_M_use_grouping
242 && __c == __lc->_M_thousands_sep
243 && !__testdecfound)
244 {
245 if (__n)
246 {
247 // Mark position for later analysis.
248 __grouping_tmp += static_cast<char>(__n);
249 __n = 0;
250 }
251 else
252 {
253 __testvalid = false;
254 break;
255 }
256 }
257 else
258 break;
259 }
260 if (__res.empty())
261 __testvalid = false;
262 break;
263 case money_base::space:
264 // At least one space is required.
265 if (__beg != __end && __ctype.is(ctype_base::space, *__beg))
266 ++__beg;
267 else
268 __testvalid = false;
269 case money_base::none:
270 // Only if not at the end of the pattern.
271 if (__i != 3)
272 for (; __beg != __end
273 && __ctype.is(ctype_base::space, *__beg); ++__beg);
274 break;
275 }
276 }
278 // Need to get the rest of the sign characters, if they exist.
279 if (__sign_size > 1 && __testvalid)
280 {
281 const char_type* __sign = __negative ? __lc->_M_negative_sign
282 : __lc->_M_positive_sign;
283 size_type __i = 1;
284 for (; __beg != __end && __i < __sign_size
285 && *__beg == __sign[__i]; ++__beg, ++__i);
287 if (__i != __sign_size)
288 __testvalid = false;
289 }
291 if (__testvalid)
292 {
293 // Strip leading zeros.
294 if (__res.size() > 1)
295 {
296 const size_type __first = __res.find_first_not_of('0');
297 const bool __only_zeros = __first == string::npos;
298 if (__first)
299 __res.erase(0, __only_zeros ? __res.size() - 1 : __first);
300 }
302 // 22.2.6.1.2, p4
303 if (__negative && __res[0] != '0')
304 __res.insert(__res.begin(), '-');
306 // Test for grouping fidelity.
307 if (__grouping_tmp.size())
308 {
309 // Add the ending grouping.
310 __grouping_tmp += static_cast<char>(__testdecfound ? __last_pos
311 : __n);
312 if (!std::__verify_grouping(__lc->_M_grouping,
313 __lc->_M_grouping_size,
314 __grouping_tmp))
315 __err |= ios_base::failbit;
316 }
318 // Iff not enough digits were supplied after the decimal-point.
319 if (__testdecfound && __n != __lc->_M_frac_digits)
320 __testvalid = false;
321 }
323 // Iff valid sequence is not recognized.
324 if (!__testvalid)
325 __err |= ios_base::failbit;
326 else
327 __units.swap(__res);
329 // Iff no more characters are available.
330 if (__beg == __end)
331 __err |= ios_base::eofbit;
332 return __beg;
333 }
335 #if defined _GLIBCXX_LONG_DOUBLE_COMPAT && defined __LONG_DOUBLE_128__
336 template<typename _CharT, typename _InIter>
337 _InIter
338 money_get<_CharT, _InIter>::
339 __do_get(iter_type __beg, iter_type __end, bool __intl, ios_base& __io,
340 ios_base::iostate& __err, double& __units) const
341 {
342 string __str;
343 __beg = __intl ? _M_extract<true>(__beg, __end, __io, __err, __str)
344 : _M_extract<false>(__beg, __end, __io, __err, __str);
345 std::__convert_to_v(__str.c_str(), __units, __err, _S_get_c_locale());
346 return __beg;
347 }
348 #endif
350 template<typename _CharT, typename _InIter>
351 _InIter
352 money_get<_CharT, _InIter>::
353 do_get(iter_type __beg, iter_type __end, bool __intl, ios_base& __io,
354 ios_base::iostate& __err, long double& __units) const
355 {
356 string __str;
357 __beg = __intl ? _M_extract<true>(__beg, __end, __io, __err, __str)
358 : _M_extract<false>(__beg, __end, __io, __err, __str);
359 std::__convert_to_v(__str.c_str(), __units, __err, _S_get_c_locale());
360 return __beg;
361 }
363 template<typename _CharT, typename _InIter>
364 _InIter
365 money_get<_CharT, _InIter>::
366 do_get(iter_type __beg, iter_type __end, bool __intl, ios_base& __io,
367 ios_base::iostate& __err, string_type& __digits) const
368 {
369 typedef typename string::size_type size_type;
371 const locale& __loc = __io._M_getloc();
372 const ctype<_CharT>& __ctype = use_facet<ctype<_CharT> >(__loc);
374 string __str;
375 __beg = __intl ? _M_extract<true>(__beg, __end, __io, __err, __str)
376 : _M_extract<false>(__beg, __end, __io, __err, __str);
377 const size_type __len = __str.size();
378 if (__len)
379 {
380 __digits.resize(__len);
381 __ctype.widen(__str.data(), __str.data() + __len, &__digits[0]);
382 }
383 return __beg;
384 }
386 template<typename _CharT, typename _OutIter>
387 template<bool _Intl>
388 _OutIter
389 money_put<_CharT, _OutIter>::
390 _M_insert(iter_type __s, ios_base& __io, char_type __fill,
391 const string_type& __digits) const
392 {
393 typedef typename string_type::size_type size_type;
394 typedef money_base::part part;
395 typedef __moneypunct_cache<_CharT, _Intl> __cache_type;
397 const locale& __loc = __io._M_getloc();
398 const ctype<_CharT>& __ctype = use_facet<ctype<_CharT> >(__loc);
400 __use_cache<__cache_type> __uc;
401 const __cache_type* __lc = __uc(__loc);
402 const char_type* __lit = __lc->_M_atoms;
404 // Determine if negative or positive formats are to be used, and
405 // discard leading negative_sign if it is present.
406 const char_type* __beg = __digits.data();
408 money_base::pattern __p;
409 const char_type* __sign;
410 size_type __sign_size;
411 if (!(*__beg == __lit[money_base::_S_minus]))
412 {
413 __p = __lc->_M_pos_format;
414 __sign = __lc->_M_positive_sign;
415 __sign_size = __lc->_M_positive_sign_size;
416 }
417 else
418 {
419 __p = __lc->_M_neg_format;
420 __sign = __lc->_M_negative_sign;
421 __sign_size = __lc->_M_negative_sign_size;
422 if (__digits.size())
423 ++__beg;
424 }
426 // Look for valid numbers in the ctype facet within input digits.
427 size_type __len = __ctype.scan_not(ctype_base::digit, __beg,
428 __beg + __digits.size()) - __beg;
429 if (__len)
430 {
431 // Assume valid input, and attempt to format.
432 // Break down input numbers into base components, as follows:
433 // final_value = grouped units + (decimal point) + (digits)
434 string_type __value;
435 __value.reserve(2 * __len);
437 // Add thousands separators to non-decimal digits, per
438 // grouping rules.
439 long __paddec = __len - __lc->_M_frac_digits;
440 if (__paddec > 0)
441 {
442 if (__lc->_M_frac_digits < 0)
443 __paddec = __len;
444 if (__lc->_M_grouping_size)
445 {
446 __value.assign(2 * __paddec, char_type());
447 _CharT* __vend =
448 std::__add_grouping(&__value[0], __lc->_M_thousands_sep,
449 __lc->_M_grouping,
450 __lc->_M_grouping_size,
451 __beg, __beg + __paddec);
452 __value.erase(__vend - &__value[0]);
453 }
454 else
455 __value.assign(__beg, __paddec);
456 }
458 // Deal with decimal point, decimal digits.
459 if (__lc->_M_frac_digits > 0)
460 {
461 __value += __lc->_M_decimal_point;
462 if (__paddec >= 0)
463 __value.append(__beg + __paddec, __lc->_M_frac_digits);
464 else
465 {
466 // Have to pad zeros in the decimal position.
467 __value.append(-__paddec, __lit[money_base::_S_zero]);
468 __value.append(__beg, __len);
469 }
470 }
472 // Calculate length of resulting string.
473 const ios_base::fmtflags __f = __io.flags()
474 & ios_base::adjustfield;
475 __len = __value.size() + __sign_size;
476 __len += ((__io.flags() & ios_base::showbase)
477 ? __lc->_M_curr_symbol_size : 0);
479 string_type __res;
480 __res.reserve(2 * __len);
482 const size_type __width = static_cast<size_type>(__io.width());
483 const bool __testipad = (__f == ios_base::internal
484 && __len < __width);
485 // Fit formatted digits into the required pattern.
486 for (int __i = 0; __i < 4; ++__i)
487 {
488 const part __which = static_cast<part>(__p.field[__i]);
489 switch (__which)
490 {
491 case money_base::symbol:
492 if (__io.flags() & ios_base::showbase)
493 __res.append(__lc->_M_curr_symbol,
494 __lc->_M_curr_symbol_size);
495 break;
496 case money_base::sign:
497 // Sign might not exist, or be more than one
498 // character long. In that case, add in the rest
499 // below.
500 if (__sign_size)
501 __res += __sign[0];
502 break;
503 case money_base::value:
504 __res += __value;
505 break;
506 case money_base::space:
507 // At least one space is required, but if internal
508 // formatting is required, an arbitrary number of
509 // fill spaces will be necessary.
510 if (__testipad)
511 __res.append(__width - __len, __fill);
512 else
513 __res += __fill;
514 break;
515 case money_base::none:
516 if (__testipad)
517 __res.append(__width - __len, __fill);
518 break;
519 }
520 }
522 // Special case of multi-part sign parts.
523 if (__sign_size > 1)
524 __res.append(__sign + 1, __sign_size - 1);
526 // Pad, if still necessary.
527 __len = __res.size();
528 if (__width > __len)
529 {
530 if (__f == ios_base::left)
531 // After.
532 __res.append(__width - __len, __fill);
533 else
534 // Before.
535 __res.insert(0, __width - __len, __fill);
536 __len = __width;
537 }
539 // Write resulting, fully-formatted string to output iterator.
540 __s = std::__write(__s, __res.data(), __len);
541 }
542 __io.width(0);
543 return __s;
544 }
546 #if defined _GLIBCXX_LONG_DOUBLE_COMPAT && defined __LONG_DOUBLE_128__
547 template<typename _CharT, typename _OutIter>
548 _OutIter
549 money_put<_CharT, _OutIter>::
550 __do_put(iter_type __s, bool __intl, ios_base& __io, char_type __fill,
551 double __units) const
552 { return this->do_put(__s, __intl, __io, __fill, (long double) __units); }
553 #endif
555 template<typename _CharT, typename _OutIter>
556 _OutIter
557 money_put<_CharT, _OutIter>::
558 do_put(iter_type __s, bool __intl, ios_base& __io, char_type __fill,
559 long double __units) const
560 {
561 const locale __loc = __io.getloc();
562 const ctype<_CharT>& __ctype = use_facet<ctype<_CharT> >(__loc);
563 #ifdef _GLIBCXX_USE_C99
564 // First try a buffer perhaps big enough.
565 int __cs_size = 64;
566 char* __cs = static_cast<char*>(__builtin_alloca(__cs_size));
567 // _GLIBCXX_RESOLVE_LIB_DEFECTS
568 // 328. Bad sprintf format modifier in money_put<>::do_put()
569 int __len = std::__convert_from_v(_S_get_c_locale(), __cs, __cs_size,
570 "%.*Lf", 0, __units);
571 // If the buffer was not large enough, try again with the correct size.
572 if (__len >= __cs_size)
573 {
574 __cs_size = __len + 1;
575 __cs = static_cast<char*>(__builtin_alloca(__cs_size));
576 __len = std::__convert_from_v(_S_get_c_locale(), __cs, __cs_size,
577 "%.*Lf", 0, __units);
578 }
579 #else
580 // max_exponent10 + 1 for the integer part, + 2 for sign and '\0'.
581 const int __cs_size =
582 __gnu_cxx::__numeric_traits<long double>::__max_exponent10 + 3;
583 char* __cs = static_cast<char*>(__builtin_alloca(__cs_size));
584 int __len = std::__convert_from_v(_S_get_c_locale(), __cs, 0, "%.*Lf",
585 0, __units);
586 #endif
587 string_type __digits(__len, char_type());
588 __ctype.widen(__cs, __cs + __len, &__digits[0]);
589 return __intl ? _M_insert<true>(__s, __io, __fill, __digits)
590 : _M_insert<false>(__s, __io, __fill, __digits);
591 }
593 template<typename _CharT, typename _OutIter>
594 _OutIter
595 money_put<_CharT, _OutIter>::
596 do_put(iter_type __s, bool __intl, ios_base& __io, char_type __fill,
597 const string_type& __digits) const
598 { return __intl ? _M_insert<true>(__s, __io, __fill, __digits)
599 : _M_insert<false>(__s, __io, __fill, __digits); }
601 _GLIBCXX_END_LDBL_NAMESPACE
603 // NB: Not especially useful. Without an ios_base object or some
604 // kind of locale reference, we are left clawing at the air where
605 // the side of the mountain used to be...
606 template<typename _CharT, typename _InIter>
607 time_base::dateorder
608 time_get<_CharT, _InIter>::do_date_order() const
609 { return time_base::no_order; }
611 // Expand a strftime format string and parse it. E.g., do_get_date() may
612 // pass %m/%d/%Y => extracted characters.
613 template<typename _CharT, typename _InIter>
614 _InIter
615 time_get<_CharT, _InIter>::
616 _M_extract_via_format(iter_type __beg, iter_type __end, ios_base& __io,
617 ios_base::iostate& __err, tm* __tm,
618 const _CharT* __format) const
619 {
620 const locale& __loc = __io._M_getloc();
621 const __timepunct<_CharT>& __tp = use_facet<__timepunct<_CharT> >(__loc);
622 const ctype<_CharT>& __ctype = use_facet<ctype<_CharT> >(__loc);
623 const size_t __len = char_traits<_CharT>::length(__format);
625 ios_base::iostate __tmperr = ios_base::goodbit;
626 for (size_t __i = 0; __beg != __end && __i < __len && !__tmperr; ++__i)
627 {
628 if (__ctype.narrow(__format[__i], 0) == '%')
629 {
630 // Verify valid formatting code, attempt to extract.
631 char __c = __ctype.narrow(__format[++__i], 0);
632 int __mem = 0;
633 if (__c == 'E' || __c == 'O')
634 __c = __ctype.narrow(__format[++__i], 0);
635 switch (__c)
636 {
637 const char* __cs;
638 _CharT __wcs[10];
639 case 'a':
640 // Abbreviated weekday name [tm_wday]
641 const char_type* __days1[7];
642 __tp._M_days_abbreviated(__days1);
643 __beg = _M_extract_name(__beg, __end, __tm->tm_wday, __days1,
644 7, __io, __tmperr);
645 break;
646 case 'A':
647 // Weekday name [tm_wday].
648 const char_type* __days2[7];
649 __tp._M_days(__days2);
650 __beg = _M_extract_name(__beg, __end, __tm->tm_wday, __days2,
651 7, __io, __tmperr);
652 break;
653 case 'h':
654 case 'b':
655 // Abbreviated month name [tm_mon]
656 const char_type* __months1[12];
657 __tp._M_months_abbreviated(__months1);
658 __beg = _M_extract_name(__beg, __end, __tm->tm_mon,
659 __months1, 12, __io, __tmperr);
660 break;
661 case 'B':
662 // Month name [tm_mon].
663 const char_type* __months2[12];
664 __tp._M_months(__months2);
665 __beg = _M_extract_name(__beg, __end, __tm->tm_mon,
666 __months2, 12, __io, __tmperr);
667 break;
668 case 'c':
669 // Default time and date representation.
670 const char_type* __dt[2];
671 __tp._M_date_time_formats(__dt);
672 __beg = _M_extract_via_format(__beg, __end, __io, __tmperr,
673 __tm, __dt[0]);
674 break;
675 case 'd':
676 // Day [01, 31]. [tm_mday]
677 __beg = _M_extract_num(__beg, __end, __tm->tm_mday, 1, 31, 2,
678 __io, __tmperr);
679 break;
680 case 'e':
681 // Day [1, 31], with single digits preceded by
682 // space. [tm_mday]
683 if (__ctype.is(ctype_base::space, *__beg))
684 __beg = _M_extract_num(++__beg, __end, __tm->tm_mday, 1, 9,
685 1, __io, __tmperr);
686 else
687 __beg = _M_extract_num(__beg, __end, __tm->tm_mday, 10, 31,
688 2, __io, __tmperr);
689 break;
690 case 'D':
691 // Equivalent to %m/%d/%y.[tm_mon, tm_mday, tm_year]
692 __cs = "%m/%d/%y";
693 __ctype.widen(__cs, __cs + 9, __wcs);
694 __beg = _M_extract_via_format(__beg, __end, __io, __tmperr,
695 __tm, __wcs);
696 break;
697 case 'H':
698 // Hour [00, 23]. [tm_hour]
699 __beg = _M_extract_num(__beg, __end, __tm->tm_hour, 0, 23, 2,
700 __io, __tmperr);
701 break;
702 case 'I':
703 // Hour [01, 12]. [tm_hour]
704 __beg = _M_extract_num(__beg, __end, __tm->tm_hour, 1, 12, 2,
705 __io, __tmperr);
706 break;
707 case 'm':
708 // Month [01, 12]. [tm_mon]
709 __beg = _M_extract_num(__beg, __end, __mem, 1, 12, 2,
710 __io, __tmperr);
711 if (!__tmperr)
712 __tm->tm_mon = __mem - 1;
713 break;
714 case 'M':
715 // Minute [00, 59]. [tm_min]
716 __beg = _M_extract_num(__beg, __end, __tm->tm_min, 0, 59, 2,
717 __io, __tmperr);
718 break;
719 case 'n':
720 if (__ctype.narrow(*__beg, 0) == '\n')
721 ++__beg;
722 else
723 __tmperr |= ios_base::failbit;
724 break;
725 case 'R':
726 // Equivalent to (%H:%M).
727 __cs = "%H:%M";
728 __ctype.widen(__cs, __cs + 6, __wcs);
729 __beg = _M_extract_via_format(__beg, __end, __io, __tmperr,
730 __tm, __wcs);
731 break;
732 case 'S':
733 // Seconds. [tm_sec]
734 // [00, 60] in C99 (one leap-second), [00, 61] in C89.
735 #ifdef _GLIBCXX_USE_C99
736 __beg = _M_extract_num(__beg, __end, __tm->tm_sec, 0, 60, 2,
737 #else
738 __beg = _M_extract_num(__beg, __end, __tm->tm_sec, 0, 61, 2,
739 #endif
740 __io, __tmperr);
741 break;
742 case 't':
743 if (__ctype.narrow(*__beg, 0) == '\t')
744 ++__beg;
745 else
746 __tmperr |= ios_base::failbit;
747 break;
748 case 'T':
749 // Equivalent to (%H:%M:%S).
750 __cs = "%H:%M:%S";
751 __ctype.widen(__cs, __cs + 9, __wcs);
752 __beg = _M_extract_via_format(__beg, __end, __io, __tmperr,
753 __tm, __wcs);
754 break;
755 case 'x':
756 // Locale's date.
757 const char_type* __dates[2];
758 __tp._M_date_formats(__dates);
759 __beg = _M_extract_via_format(__beg, __end, __io, __tmperr,
760 __tm, __dates[0]);
761 break;
762 case 'X':
763 // Locale's time.
764 const char_type* __times[2];
765 __tp._M_time_formats(__times);
766 __beg = _M_extract_via_format(__beg, __end, __io, __tmperr,
767 __tm, __times[0]);
768 break;
769 case 'y':
770 case 'C': // C99
771 // Two digit year. [tm_year]
772 __beg = _M_extract_num(__beg, __end, __tm->tm_year, 0, 99, 2,
773 __io, __tmperr);
774 break;
775 case 'Y':
776 // Year [1900). [tm_year]
777 __beg = _M_extract_num(__beg, __end, __mem, 0, 9999, 4,
778 __io, __tmperr);
779 if (!__tmperr)
780 __tm->tm_year = __mem - 1900;
781 break;
782 case 'Z':
783 // Timezone info.
784 if (__ctype.is(ctype_base::upper, *__beg))
785 {
786 int __tmp;
787 __beg = _M_extract_name(__beg, __end, __tmp,
788 __timepunct_cache<_CharT>::_S_timezones,
789 14, __io, __tmperr);
791 // GMT requires special effort.
792 if (__beg != __end && !__tmperr && __tmp == 0
793 && (*__beg == __ctype.widen('-')
794 || *__beg == __ctype.widen('+')))
795 {
796 __beg = _M_extract_num(__beg, __end, __tmp, 0, 23, 2,
797 __io, __tmperr);
798 __beg = _M_extract_num(__beg, __end, __tmp, 0, 59, 2,
799 __io, __tmperr);
800 }
801 }
802 else
803 __tmperr |= ios_base::failbit;
804 break;
805 default:
806 // Not recognized.
807 __tmperr |= ios_base::failbit;
808 }
809 }
810 else
811 {
812 // Verify format and input match, extract and discard.
813 if (__format[__i] == *__beg)
814 ++__beg;
815 else
816 __tmperr |= ios_base::failbit;
817 }
818 }
820 if (__tmperr)
821 __err |= ios_base::failbit;
823 return __beg;
824 }
826 template<typename _CharT, typename _InIter>
827 _InIter
828 time_get<_CharT, _InIter>::
829 _M_extract_num(iter_type __beg, iter_type __end, int& __member,
830 int __min, int __max, size_t __len,
831 ios_base& __io, ios_base::iostate& __err) const
832 {
833 const locale& __loc = __io._M_getloc();
834 const ctype<_CharT>& __ctype = use_facet<ctype<_CharT> >(__loc);
836 // As-is works for __len = 1, 2, 4, the values actually used.
837 int __mult = __len == 2 ? 10 : (__len == 4 ? 1000 : 1);
839 ++__min;
840 size_t __i = 0;
841 int __value = 0;
842 for (; __beg != __end && __i < __len; ++__beg, ++__i)
843 {
844 const char __c = __ctype.narrow(*__beg, '*');
845 if (__c >= '0' && __c <= '9')
846 {
847 __value = __value * 10 + (__c - '0');
848 const int __valuec = __value * __mult;
849 if (__valuec > __max || __valuec + __mult < __min)
850 break;
851 __mult /= 10;
852 }
853 else
854 break;
855 }
856 if (__i == __len)
857 __member = __value;
858 else
859 __err |= ios_base::failbit;
861 return __beg;
862 }
864 // Assumptions:
865 // All elements in __names are unique.
866 template<typename _CharT, typename _InIter>
867 _InIter
868 time_get<_CharT, _InIter>::
869 _M_extract_name(iter_type __beg, iter_type __end, int& __member,
870 const _CharT** __names, size_t __indexlen,
871 ios_base& __io, ios_base::iostate& __err) const
872 {
873 typedef char_traits<_CharT> __traits_type;
874 const locale& __loc = __io._M_getloc();
875 const ctype<_CharT>& __ctype = use_facet<ctype<_CharT> >(__loc);
877 int* __matches = static_cast<int*>(__builtin_alloca(sizeof(int)
878 * __indexlen));
879 size_t __nmatches = 0;
880 size_t __pos = 0;
881 bool __testvalid = true;
882 const char_type* __name;
884 // Look for initial matches.
885 // NB: Some of the locale data is in the form of all lowercase
886 // names, and some is in the form of initially-capitalized
887 // names. Look for both.
888 if (__beg != __end)
889 {
890 const char_type __c = *__beg;
891 for (size_t __i1 = 0; __i1 < __indexlen; ++__i1)
892 if (__c == __names[__i1][0]
893 || __c == __ctype.toupper(__names[__i1][0]))
894 __matches[__nmatches++] = __i1;
895 }
897 while (__nmatches > 1)
898 {
899 // Find smallest matching string.
900 size_t __minlen = __traits_type::length(__names[__matches[0]]);
901 for (size_t __i2 = 1; __i2 < __nmatches; ++__i2)
902 __minlen = std::min(__minlen,
903 __traits_type::length(__names[__matches[__i2]]));
904 ++__beg, ++__pos;
905 if (__pos < __minlen && __beg != __end)
906 for (size_t __i3 = 0; __i3 < __nmatches;)
907 {
908 __name = __names[__matches[__i3]];
909 if (!(__name[__pos] == *__beg))
910 __matches[__i3] = __matches[--__nmatches];
911 else
912 ++__i3;
913 }
914 else
915 break;
916 }
918 if (__nmatches == 1)
919 {
920 // Make sure found name is completely extracted.
921 ++__beg, ++__pos;
922 __name = __names[__matches[0]];
923 const size_t __len = __traits_type::length(__name);
924 while (__pos < __len && __beg != __end && __name[__pos] == *__beg)
925 ++__beg, ++__pos;
927 if (__len == __pos)
928 __member = __matches[0];
929 else
930 __testvalid = false;
931 }
932 else
933 __testvalid = false;
934 if (!__testvalid)
935 __err |= ios_base::failbit;
937 return __beg;
938 }
940 template<typename _CharT, typename _InIter>
941 _InIter
942 time_get<_CharT, _InIter>::
943 do_get_time(iter_type __beg, iter_type __end, ios_base& __io,
944 ios_base::iostate& __err, tm* __tm) const
945 {
946 const locale& __loc = __io._M_getloc();
947 const __timepunct<_CharT>& __tp = use_facet<__timepunct<_CharT> >(__loc);
948 const char_type* __times[2];
949 __tp._M_time_formats(__times);
950 __beg = _M_extract_via_format(__beg, __end, __io, __err,
951 __tm, __times[0]);
952 if (__beg == __end)
953 __err |= ios_base::eofbit;
954 return __beg;
955 }
957 template<typename _CharT, typename _InIter>
958 _InIter
959 time_get<_CharT, _InIter>::
960 do_get_date(iter_type __beg, iter_type __end, ios_base& __io,
961 ios_base::iostate& __err, tm* __tm) const
962 {
963 const locale& __loc = __io._M_getloc();
964 const __timepunct<_CharT>& __tp = use_facet<__timepunct<_CharT> >(__loc);
965 const char_type* __dates[2];
966 __tp._M_date_formats(__dates);
967 __beg = _M_extract_via_format(__beg, __end, __io, __err,
968 __tm, __dates[0]);
969 if (__beg == __end)
970 __err |= ios_base::eofbit;
971 return __beg;
972 }
974 template<typename _CharT, typename _InIter>
975 _InIter
976 time_get<_CharT, _InIter>::
977 do_get_weekday(iter_type __beg, iter_type __end, ios_base& __io,
978 ios_base::iostate& __err, tm* __tm) const
979 {
980 typedef char_traits<_CharT> __traits_type;
981 const locale& __loc = __io._M_getloc();
982 const __timepunct<_CharT>& __tp = use_facet<__timepunct<_CharT> >(__loc);
983 const ctype<_CharT>& __ctype = use_facet<ctype<_CharT> >(__loc);
984 const char_type* __days[7];
985 __tp._M_days_abbreviated(__days);
986 int __tmpwday;
987 ios_base::iostate __tmperr = ios_base::goodbit;
988 __beg = _M_extract_name(__beg, __end, __tmpwday, __days, 7,
989 __io, __tmperr);
991 // Check to see if non-abbreviated name exists, and extract.
992 // NB: Assumes both _M_days and _M_days_abbreviated organized in
993 // exact same order, first to last, such that the resulting
994 // __days array with the same index points to a day, and that
995 // day's abbreviated form.
996 // NB: Also assumes that an abbreviated name is a subset of the name.
997 if (!__tmperr && __beg != __end)
998 {
999 size_t __pos = __traits_type::length(__days[__tmpwday]);
1000 __tp._M_days(__days);
1001 const char_type* __name = __days[__tmpwday];
1002 if (__name[__pos] == *__beg)
1003 {
1004 // Extract the rest of it.
1005 const size_t __len = __traits_type::length(__name);
1006 while (__pos < __len && __beg != __end
1007 && __name[__pos] == *__beg)
1008 ++__beg, ++__pos;
1009 if (__len != __pos)
1010 __tmperr |= ios_base::failbit;
1011 }
1012 }
1013 if (!__tmperr)
1014 __tm->tm_wday = __tmpwday;
1015 else
1016 __err |= ios_base::failbit;
1018 if (__beg == __end)
1019 __err |= ios_base::eofbit;
1020 return __beg;
1021 }
1023 template<typename _CharT, typename _InIter>
1024 _InIter
1025 time_get<_CharT, _InIter>::
1026 do_get_monthname(iter_type __beg, iter_type __end,
1027 ios_base& __io, ios_base::iostate& __err, tm* __tm) const
1028 {
1029 typedef char_traits<_CharT> __traits_type;
1030 const locale& __loc = __io._M_getloc();
1031 const __timepunct<_CharT>& __tp = use_facet<__timepunct<_CharT> >(__loc);
1032 const ctype<_CharT>& __ctype = use_facet<ctype<_CharT> >(__loc);
1033 const char_type* __months[12];
1034 __tp._M_months_abbreviated(__months);
1035 int __tmpmon;
1036 ios_base::iostate __tmperr = ios_base::goodbit;
1037 __beg = _M_extract_name(__beg, __end, __tmpmon, __months, 12,
1038 __io, __tmperr);
1040 // Check to see if non-abbreviated name exists, and extract.
1041 // NB: Assumes both _M_months and _M_months_abbreviated organized in
1042 // exact same order, first to last, such that the resulting
1043 // __months array with the same index points to a month, and that
1044 // month's abbreviated form.
1045 // NB: Also assumes that an abbreviated name is a subset of the name.
1046 if (!__tmperr && __beg != __end)
1047 {
1048 size_t __pos = __traits_type::length(__months[__tmpmon]);
1049 __tp._M_months(__months);
1050 const char_type* __name = __months[__tmpmon];
1051 if (__name[__pos] == *__beg)
1052 {
1053 // Extract the rest of it.
1054 const size_t __len = __traits_type::length(__name);
1055 while (__pos < __len && __beg != __end
1056 && __name[__pos] == *__beg)
1057 ++__beg, ++__pos;
1058 if (__len != __pos)
1059 __tmperr |= ios_base::failbit;
1060 }
1061 }
1062 if (!__tmperr)
1063 __tm->tm_mon = __tmpmon;
1064 else
1065 __err |= ios_base::failbit;
1067 if (__beg == __end)
1068 __err |= ios_base::eofbit;
1069 return __beg;
1070 }
1072 template<typename _CharT, typename _InIter>
1073 _InIter
1074 time_get<_CharT, _InIter>::
1075 do_get_year(iter_type __beg, iter_type __end, ios_base& __io,
1076 ios_base::iostate& __err, tm* __tm) const
1077 {
1078 const locale& __loc = __io._M_getloc();
1079 const ctype<_CharT>& __ctype = use_facet<ctype<_CharT> >(__loc);
1081 size_t __i = 0;
1082 int __value = 0;
1083 for (; __beg != __end && __i < 4; ++__beg, ++__i)
1084 {
1085 const char __c = __ctype.narrow(*__beg, '*');
1086 if (__c >= '0' && __c <= '9')
1087 __value = __value * 10 + (__c - '0');
1088 else
1089 break;
1090 }
1091 if (__i == 2 || __i == 4)
1092 __tm->tm_year = __i == 2 ? __value : __value - 1900;
1093 else
1094 __err |= ios_base::failbit;
1096 if (__beg == __end)
1097 __err |= ios_base::eofbit;
1098 return __beg;
1099 }
1101 template<typename _CharT, typename _OutIter>
1102 _OutIter
1103 time_put<_CharT, _OutIter>::
1104 put(iter_type __s, ios_base& __io, char_type __fill, const tm* __tm,
1105 const _CharT* __beg, const _CharT* __end) const
1106 {
1107 const locale& __loc = __io._M_getloc();
1108 ctype<_CharT> const& __ctype = use_facet<ctype<_CharT> >(__loc);
1109 for (; __beg != __end; ++__beg)
1110 if (__ctype.narrow(*__beg, 0) != '%')
1111 {
1112 *__s = *__beg;
1113 ++__s;
1114 }
1115 else if (++__beg != __end)
1116 {
1117 char __format;
1118 char __mod = 0;
1119 const char __c = __ctype.narrow(*__beg, 0);
1120 if (__c != 'E' && __c != 'O')
1121 __format = __c;
1122 else if (++__beg != __end)
1123 {
1124 __mod = __c;
1125 __format = __ctype.narrow(*__beg, 0);
1126 }
1127 else
1128 break;
1129 __s = this->do_put(__s, __io, __fill, __tm, __format, __mod);
1130 }
1131 else
1132 break;
1133 return __s;
1134 }
1136 template<typename _CharT, typename _OutIter>
1137 _OutIter
1138 time_put<_CharT, _OutIter>::
1139 do_put(iter_type __s, ios_base& __io, char_type, const tm* __tm,
1140 char __format, char __mod) const
1141 {
1142 const locale& __loc = __io._M_getloc();
1143 ctype<_CharT> const& __ctype = use_facet<ctype<_CharT> >(__loc);
1144 __timepunct<_CharT> const& __tp = use_facet<__timepunct<_CharT> >(__loc);
1146 // NB: This size is arbitrary. Should this be a data member,
1147 // initialized at construction?
1148 const size_t __maxlen = 128;
1149 char_type* __res =
1150 static_cast<char_type*>(__builtin_alloca(sizeof(char_type) * __maxlen));
1152 // NB: In IEE 1003.1-200x, and perhaps other locale models, it
1153 // is possible that the format character will be longer than one
1154 // character. Possibilities include 'E' or 'O' followed by a
1155 // format character: if __mod is not the default argument, assume
1156 // it's a valid modifier.
1157 char_type __fmt[4];
1158 __fmt[0] = __ctype.widen('%');
1159 if (!__mod)
1160 {
1161 __fmt[1] = __format;
1162 __fmt[2] = char_type();
1163 }
1164 else
1165 {
1166 __fmt[1] = __mod;
1167 __fmt[2] = __format;
1168 __fmt[3] = char_type();
1169 }
1171 __tp._M_put(__res, __maxlen, __fmt, __tm);
1173 // Write resulting, fully-formatted string to output iterator.
1174 return std::__write(__s, __res, char_traits<char_type>::length(__res));
1175 }
1178 // Inhibit implicit instantiations for required instantiations,
1179 // which are defined via explicit instantiations elsewhere.
1180 // NB: This syntax is a GNU extension.
1181 #if _GLIBCXX_EXTERN_TEMPLATE
1182 extern template class moneypunct<char, false>;
1183 extern template class moneypunct<char, true>;
1184 extern template class moneypunct_byname<char, false>;
1185 extern template class moneypunct_byname<char, true>;
1186 extern template class _GLIBCXX_LDBL_NAMESPACE money_get<char>;
1187 extern template class _GLIBCXX_LDBL_NAMESPACE money_put<char>;
1188 extern template class __timepunct<char>;
1189 extern template class time_put<char>;
1190 extern template class time_put_byname<char>;
1191 extern template class time_get<char>;
1192 extern template class time_get_byname<char>;
1193 extern template class messages<char>;
1194 extern template class messages_byname<char>;
1196 extern template
1197 const moneypunct<char, true>&
1198 use_facet<moneypunct<char, true> >(const locale&);
1200 extern template
1201 const moneypunct<char, false>&
1202 use_facet<moneypunct<char, false> >(const locale&);
1204 extern template
1205 const money_put<char>&
1206 use_facet<money_put<char> >(const locale&);
1208 extern template
1209 const money_get<char>&
1210 use_facet<money_get<char> >(const locale&);
1212 extern template
1213 const __timepunct<char>&
1214 use_facet<__timepunct<char> >(const locale&);
1216 extern template
1217 const time_put<char>&
1218 use_facet<time_put<char> >(const locale&);
1220 extern template
1221 const time_get<char>&
1222 use_facet<time_get<char> >(const locale&);
1224 extern template
1225 const messages<char>&
1226 use_facet<messages<char> >(const locale&);
1228 extern template
1229 bool
1230 has_facet<moneypunct<char> >(const locale&);
1232 extern template
1233 bool
1234 has_facet<money_put<char> >(const locale&);
1236 extern template
1237 bool
1238 has_facet<money_get<char> >(const locale&);
1240 extern template
1241 bool
1242 has_facet<__timepunct<char> >(const locale&);
1244 extern template
1245 bool
1246 has_facet<time_put<char> >(const locale&);
1248 extern template
1249 bool
1250 has_facet<time_get<char> >(const locale&);
1252 extern template
1253 bool
1254 has_facet<messages<char> >(const locale&);
1256 #ifdef _GLIBCXX_USE_WCHAR_T
1257 extern template class moneypunct<wchar_t, false>;
1258 extern template class moneypunct<wchar_t, true>;
1259 extern template class moneypunct_byname<wchar_t, false>;
1260 extern template class moneypunct_byname<wchar_t, true>;
1261 extern template class _GLIBCXX_LDBL_NAMESPACE money_get<wchar_t>;
1262 extern template class _GLIBCXX_LDBL_NAMESPACE money_put<wchar_t>;
1263 extern template class __timepunct<wchar_t>;
1264 extern template class time_put<wchar_t>;
1265 extern template class time_put_byname<wchar_t>;
1266 extern template class time_get<wchar_t>;
1267 extern template class time_get_byname<wchar_t>;
1268 extern template class messages<wchar_t>;
1269 extern template class messages_byname<wchar_t>;
1271 extern template
1272 const moneypunct<wchar_t, true>&
1273 use_facet<moneypunct<wchar_t, true> >(const locale&);
1275 extern template
1276 const moneypunct<wchar_t, false>&
1277 use_facet<moneypunct<wchar_t, false> >(const locale&);
1279 extern template
1280 const money_put<wchar_t>&
1281 use_facet<money_put<wchar_t> >(const locale&);
1283 extern template
1284 const money_get<wchar_t>&
1285 use_facet<money_get<wchar_t> >(const locale&);
1287 extern template
1288 const __timepunct<wchar_t>&
1289 use_facet<__timepunct<wchar_t> >(const locale&);
1291 extern template
1292 const time_put<wchar_t>&
1293 use_facet<time_put<wchar_t> >(const locale&);
1295 extern template
1296 const time_get<wchar_t>&
1297 use_facet<time_get<wchar_t> >(const locale&);
1299 extern template
1300 const messages<wchar_t>&
1301 use_facet<messages<wchar_t> >(const locale&);
1303 extern template
1304 bool
1305 has_facet<moneypunct<wchar_t> >(const locale&);
1307 extern template
1308 bool
1309 has_facet<money_put<wchar_t> >(const locale&);
1311 extern template
1312 bool
1313 has_facet<money_get<wchar_t> >(const locale&);
1315 extern template
1316 bool
1317 has_facet<__timepunct<wchar_t> >(const locale&);
1319 extern template
1320 bool
1321 has_facet<time_put<wchar_t> >(const locale&);
1323 extern template
1324 bool
1325 has_facet<time_get<wchar_t> >(const locale&);
1327 extern template
1328 bool
1329 has_facet<messages<wchar_t> >(const locale&);
1330 #endif
1331 #endif
1333 _GLIBCXX_END_NAMESPACE
1335 #endif