64 static void __skip_optional_whitespace(istream& __input) {  in __skip_optional_whitespace()  argument
65   while (chrono::__is_whitespace(__input.peek()))  in __skip_optional_whitespace()
66     __input.get();  in __skip_optional_whitespace()
69 static void __skip_mandatory_whitespace(istream& __input) {  in __skip_mandatory_whitespace()  argument
70   if (!chrono::__is_whitespace(__input.get()))  in __skip_mandatory_whitespace()
73   chrono::__skip_optional_whitespace(__input);  in __skip_mandatory_whitespace()
78 static void __skip_line(istream& __input) {  in __skip_line()  argument
79   while (!chrono::__is_eol(__input.peek())) {  in __skip_line()
80     __input.get();  in __skip_line()
82   __input.get();  in __skip_line()
85 static void __skip(istream& __input, char __suffix) {  in __skip()  argument
86   if (std::tolower(__input.peek()) == __suffix)  in __skip()
87     __input.get();  in __skip()
90 static void __skip(istream& __input, string_view __suffix) {  in __skip()  argument
92     if (std::tolower(__input.peek()) == __c)  in __skip()
93       __input.get();  in __skip()
96 static void __matches(istream& __input, char __expected) {  in __matches()  argument
97   if (std::tolower(__input.get()) != __expected)  in __matches()
101 static void __matches(istream& __input, string_view __expected) {  in __matches()  argument
103     if (std::tolower(__input.get()) != __c)  in __matches()
107 [[nodiscard]] static string __parse_string(istream& __input) {  in __parse_string()  argument
110     int __c = __input.get();  in __parse_string()
115       __input.unget();  in __parse_string()
129 [[nodiscard]] static int64_t __parse_integral(istream& __input, bool __leading_zero_allowed) {  in __parse_integral()  argument
130   int64_t __result = __input.get();  in __parse_integral()
140     if (__input.peek() < '0' || __input.peek() > '9')  in __parse_integral()
158     __result += __input.get() - '0';  in __parse_integral()
166 [[nodiscard]] static day __parse_day(istream& __input) {  in __parse_day()  argument
167   unsigned __result = chrono::__parse_integral(__input, false);  in __parse_day()
173 [[nodiscard]] static weekday __parse_weekday(istream& __input) {  in __parse_weekday()  argument
175   switch (std::tolower(__input.get())) {  in __parse_weekday()
177     chrono::__skip(__input, "riday");  in __parse_weekday()
181     chrono::__skip(__input, "onday");  in __parse_weekday()
185     switch (std::tolower(__input.get())) {  in __parse_weekday()
187       chrono::__skip(__input, "turday");  in __parse_weekday()
191       chrono::__skip(__input, "nday");  in __parse_weekday()
197     switch (std::tolower(__input.get())) {  in __parse_weekday()
199       chrono::__skip(__input, "ursday");  in __parse_weekday()
203       chrono::__skip(__input, "esday");  in __parse_weekday()
208     chrono::__skip(__input, "ednesday");  in __parse_weekday()
215 [[nodiscard]] static month __parse_month(istream& __input) {  in __parse_month()  argument
217   switch (std::tolower(__input.get())) {  in __parse_month()
219     switch (std::tolower(__input.get())) {  in __parse_month()
221       chrono::__skip(__input, "ril");  in __parse_month()
225       chrono::__skip(__input, "gust");  in __parse_month()
231     chrono::__skip(__input, "ecember");  in __parse_month()
235     chrono::__skip(__input, "ebruary");  in __parse_month()
239     switch (std::tolower(__input.get())) {  in __parse_month()
241       chrono::__skip(__input, "nuary");  in __parse_month()
245       switch (std::tolower(__input.get())) {  in __parse_month()
247         chrono::__skip(__input, 'e');  in __parse_month()
251         chrono::__skip(__input, 'y');  in __parse_month()
258     if (std::tolower(__input.get()) == 'a')  in __parse_month()
259       switch (std::tolower(__input.get())) {  in __parse_month()
264         chrono::__skip(__input, "ch");  in __parse_month()
270     chrono::__skip(__input, "ovember");  in __parse_month()
274     chrono::__skip(__input, "ctober");  in __parse_month()
278     chrono::__skip(__input, "eptember");  in __parse_month()
284 [[nodiscard]] static year __parse_year_value(istream& __input) {  in __parse_year_value()  argument
285   bool __negative = __input.peek() == '-';  in __parse_year_value()
287     __input.get();  in __parse_year_value()
289   int64_t __result = __parse_integral(__input, true);  in __parse_year_value()
300 [[nodiscard]] static year __parse_year(istream& __input) {  in __parse_year()  argument
301   if (std::tolower(__input.peek()) != 'm') [[likely]]  in __parse_year()
302     return chrono::__parse_year_value(__input);  in __parse_year()
304   __input.get();  in __parse_year()
305   switch (std::tolower(__input.peek())) {  in __parse_year()
307     __input.get();  in __parse_year()
308     chrono::__skip(__input, 'n');  in __parse_year()
316     __input.get();  in __parse_year()
317     chrono::__skip(__input, 'x');  in __parse_year()
328 [[nodiscard]] static year __parse_to(istream& __input, year __only) {  in __parse_to()  argument
329   if (std::tolower(__input.peek()) != 'o')  in __parse_to()
330     return chrono::__parse_year(__input);  in __parse_to()
332   __input.get();  in __parse_to()
333   chrono::__skip(__input, "nly");  in __parse_to()
337 …discard]] static __tz::__constrained_weekday::__comparison_t __parse_comparison(istream& __input) {  in __parse_comparison()  argument
338   switch (__input.get()) {  in __parse_comparison()
340     chrono::__matches(__input, '=');  in __parse_comparison()
344     chrono::__matches(__input, '=');  in __parse_comparison()
350 [[nodiscard]] static __tz::__on __parse_on(istream& __input) {  in __parse_on()  argument
351   if (std::isdigit(__input.peek()))  in __parse_on()
352     return chrono::__parse_day(__input);  in __parse_on()
354   if (std::tolower(__input.peek()) == 'l') {  in __parse_on()
355     chrono::__matches(__input, "last");  in __parse_on()
356     return weekday_last(chrono::__parse_weekday(__input));  in __parse_on()
360 …chrono::__parse_weekday(__input), chrono::__parse_comparison(__input), chrono::__parse_day(__input…  in __parse_on()
363 [[nodiscard]] static seconds __parse_duration(istream& __input) {  in __parse_duration()  argument
365   int __c         = __input.peek();  in __parse_duration()
368     __input.get();  in __parse_duration()
371     if (!std::isdigit(__input.peek()))  in __parse_duration()
375   __result += hours(__parse_integral(__input, true));  in __parse_duration()
376   if (__input.peek() != ':')  in __parse_duration()
379   __input.get();  in __parse_duration()
380   __result += minutes(__parse_integral(__input, true));  in __parse_duration()
381   if (__input.peek() != ':')  in __parse_duration()
384   __input.get();  in __parse_duration()
385   __result += seconds(__parse_integral(__input, true));  in __parse_duration()
386   if (__input.peek() != '.')  in __parse_duration()
389   __input.get();  in __parse_duration()
390   (void)__parse_integral(__input, true); // Truncate the digits.  in __parse_duration()
395 [[nodiscard]] static __tz::__clock __parse_clock(istream& __input) {  in __parse_clock()  argument
396   switch (__input.get()) { // case sensitive  in __parse_clock()
408   __input.unget();  in __parse_clock()
412 [[nodiscard]] static bool __parse_dst(istream& __input, seconds __offset) {  in __parse_dst()  argument
413   switch (__input.get()) { // case sensitive  in __parse_dst()
421   __input.unget();  in __parse_dst()
425 [[nodiscard]] static __tz::__at __parse_at(istream& __input) {  in __parse_at()  argument
426   return {__parse_duration(__input), __parse_clock(__input)};  in __parse_at()
429 [[nodiscard]] static __tz::__save __parse_save(istream& __input) {  in __parse_save()  argument
430   seconds __time = chrono::__parse_duration(__input);  in __parse_save()
431   return {__time, chrono::__parse_dst(__input, __time)};  in __parse_save()
434 [[nodiscard]] static string __parse_letters(istream& __input) {  in __parse_letters()  argument
435   string __result = __parse_string(__input);  in __parse_letters()
440 [[nodiscard]] static __tz::__continuation::__rules_t __parse_rules(istream& __input) {  in __parse_rules()  argument
441   int __c = __input.peek();  in __parse_rules()
444     __input.get();  in __parse_rules()
445     if (chrono::__is_whitespace(__input.peek()))  in __parse_rules()
447     __input.unget();  in __parse_rules()
448     return chrono::__parse_save(__input);  in __parse_rules()
452     return chrono::__parse_save(__input);  in __parse_rules()
454   return chrono::__parse_string(__input);  in __parse_rules()
457 … __tz::__continuation __parse_continuation(__tz::__rules_storage_type& __rules, istream& __input) {  in __parse_continuation()  argument
467   __result.__stdoff = chrono::__parse_duration(__input);  in __parse_continuation()
468   chrono::__skip_mandatory_whitespace(__input);  in __parse_continuation()
469   __result.__rules = chrono::__parse_rules(__input);  in __parse_continuation()
470   chrono::__skip_mandatory_whitespace(__input);  in __parse_continuation()
471   __result.__format = chrono::__parse_string(__input);  in __parse_continuation()
472   chrono::__skip_optional_whitespace(__input);  in __parse_continuation()
474   if (chrono::__is_eol(__input.peek()))  in __parse_continuation()
476   __result.__year = chrono::__parse_year(__input);  in __parse_continuation()
477   chrono::__skip_optional_whitespace(__input);  in __parse_continuation()
479   if (chrono::__is_eol(__input.peek()))  in __parse_continuation()
481   __result.__in = chrono::__parse_month(__input);  in __parse_continuation()
482   chrono::__skip_optional_whitespace(__input);  in __parse_continuation()
484   if (chrono::__is_eol(__input.peek()))  in __parse_continuation()
486   __result.__on = chrono::__parse_on(__input);  in __parse_continuation()
487   chrono::__skip_optional_whitespace(__input);  in __parse_continuation()
489   if (chrono::__is_eol(__input.peek()))  in __parse_continuation()
491   __result.__at = __parse_at(__input);  in __parse_continuation()
500 static string __parse_version(istream& __input) {  in __parse_version()  argument
506   chrono::__matches(__input, '#');  in __parse_version()
507   chrono::__skip_optional_whitespace(__input);  in __parse_version()
508   chrono::__matches(__input, "version");  in __parse_version()
509   chrono::__skip_mandatory_whitespace(__input);  in __parse_version()
510   return chrono::__parse_string(__input);  in __parse_version()
535 static void __parse_rule(tzdb& __tzdb, __tz::__rules_storage_type& __rules, istream& __input) {  in __parse_rule()  argument
536   chrono::__skip_mandatory_whitespace(__input);  in __parse_rule()
537   string __name = chrono::__parse_string(__input);  in __parse_rule()
541   chrono::__skip_mandatory_whitespace(__input);  in __parse_rule()
542   __rule.__from = chrono::__parse_year(__input);  in __parse_rule()
543   chrono::__skip_mandatory_whitespace(__input);  in __parse_rule()
544   __rule.__to = chrono::__parse_to(__input, __rule.__from);  in __parse_rule()
545   chrono::__skip_mandatory_whitespace(__input);  in __parse_rule()
546   chrono::__matches(__input, '-');  in __parse_rule()
547   chrono::__skip_mandatory_whitespace(__input);  in __parse_rule()
548   __rule.__in = chrono::__parse_month(__input);  in __parse_rule()
549   chrono::__skip_mandatory_whitespace(__input);  in __parse_rule()
550   __rule.__on = chrono::__parse_on(__input);  in __parse_rule()
551   chrono::__skip_mandatory_whitespace(__input);  in __parse_rule()
552   __rule.__at = __parse_at(__input);  in __parse_rule()
553   chrono::__skip_mandatory_whitespace(__input);  in __parse_rule()
554   __rule.__save = __parse_save(__input);  in __parse_rule()
555   chrono::__skip_mandatory_whitespace(__input);  in __parse_rule()
556   __rule.__letters = chrono::__parse_letters(__input);  in __parse_rule()
557   chrono::__skip_line(__input);  in __parse_rule()
560 static void __parse_zone(tzdb& __tzdb, __tz::__rules_storage_type& __rules, istream& __input) {  in __parse_zone()  argument
561   chrono::__skip_mandatory_whitespace(__input);  in __parse_zone()
562   auto __p = std::make_unique<time_zone::__impl>(chrono::__parse_string(__input), __rules);  in __parse_zone()
564   chrono::__skip_mandatory_whitespace(__input);  in __parse_zone()
568     __continuations.emplace_back(__parse_continuation(__rules, __input));  in __parse_zone()
569     chrono::__skip_line(__input);  in __parse_zone()
570     chrono::__skip_optional_whitespace(__input);  in __parse_zone()
571   } while (std::isdigit(__input.peek()) || __input.peek() == '-');  in __parse_zone()
576 static void __parse_link(tzdb& __tzdb, istream& __input) {  in __parse_link()  argument
577   chrono::__skip_mandatory_whitespace(__input);  in __parse_link()
578   string __target = chrono::__parse_string(__input);  in __parse_link()
579   chrono::__skip_mandatory_whitespace(__input);  in __parse_link()
580   string __name = chrono::__parse_string(__input);  in __parse_link()
581   chrono::__skip_line(__input);  in __parse_link()
586 static void __parse_tzdata(tzdb& __db, __tz::__rules_storage_type& __rules, istream& __input) {  in __parse_tzdata()  argument
588     int __c = std::tolower(__input.get());  in __parse_tzdata()
600       chrono::__skip_line(__input);  in __parse_tzdata()
604       chrono::__skip(__input, "ule");  in __parse_tzdata()
605       chrono::__parse_rule(__db, __rules, __input);  in __parse_tzdata()
609       chrono::__skip(__input, "one");  in __parse_tzdata()
610       chrono::__parse_zone(__db, __rules, __input);  in __parse_tzdata()
614       chrono::__skip(__input, "ink");  in __parse_tzdata()
615       chrono::__parse_link(__db, __input);  in __parse_tzdata()
624 static void __parse_leap_seconds(vector<leap_second>& __leap_seconds, istream&& __input) {  in __parse_leap_seconds()  argument
636       switch (__input.peek()) {  in __parse_leap_seconds()
643         __input.get();  in __parse_leap_seconds()
647         chrono::__skip_line(__input);  in __parse_leap_seconds()
651 …    sys_seconds __date = sys_seconds{seconds{chrono::__parse_integral(__input, false)}} - __offset;  in __parse_leap_seconds()
652       chrono::__skip_mandatory_whitespace(__input);  in __parse_leap_seconds()
653       seconds __value{chrono::__parse_integral(__input, false)};  in __parse_leap_seconds()
654       chrono::__skip_line(__input);  in __parse_leap_seconds()