Revert zone-to-link changes that changed current time zone
abbreviations. Add a few more changes, for more consistency.
Make several other fixes discovered while researching this.
* africa (Africa/Accra, Antarctica/Syowa):
* asia (Pacific/Palau):
* australasia (Pacific/Funafuti, Pacific/Majuro, Pacific/Wake)
(Pacific/Wallis, Antarctica/DumontDUrville, Pacific/Chuuk)
(Pacific/Pohnpei):
* northamerica (Pacific/Tahiti):
Remove links, as they are now zones again.
* africa (Africa/Accra, Africa/Maputo):
* antarctica (Antarctica/DumontDUrville, Antarctica/Syowa):
* australasia (Pacific/Tahiti, Pacific/Majuro, Pacific/Chuuk)
(Pacific/Pohnpei, Pacific/Palau, Pacific/Funafuti, Pacific/Wake)
(Pacific/Wallis):
Restore zone.
* africa (Africa/Accra): Assume DST starting in 1920, as per Scott
Keltie & Epstein 1920.
* asia (Asia/Bahrain, Asia/Phnom_Penh, Asia/Kuwait, Asia/Vientiane)
(Asia/Muscat, Asia/Ho_Chi_Minh, Asia/Aden):
* northamerica (America/Antigua, America/Cayman):
Change from zone to link, as these are also closely related.
* africa (Africa/Blantyre, Africa/Bujumbura, Africa/Gaborone)
(Africa/Harare, Africa/Kigali, Africa/Lubumbashi, Africa/Lusaka):
Now links to Africa/Maputo, not Africa/Johannesburg.
* asia (Asia/Riyadh): Change standard-time transition from 1950
to 1947-03-14. Add commentary citing Hunt 1961 and CAB 1946.
* australasia (Pacific/Chatham): Assume NZST - 45 min. before 1946.
Add commentary about this.
(Pacific/Pago_Pago): UT-11 from 1911 to 1950.
(WS, Pacific/Apia): Use NZ-style abbreviations.
Switch to "WSST" for Western Samoa standard time before 1950.
Add commentary about Samoa before 1950.
* backward (Africa/Asmera, Africa/Timbuktu, Asia/Saigon):
Redo to avoid link-to-link.
* europe (Hungary, Europe/Bucharest): Several pre-1946
corrections: in 1918 the transition out of DST was on 09-16, not
09-29; in 1919 it was on 11-24, not 09-15; in 1945 it was on
11-01, not 11-03; in 1941 the transition to DST was 04-08 not
04-06 at 02:00; and there was no DST in 1920.
(Poland): Add source for 1919.
* southamerica: Add link for America/Antigua.
* NEWS: Document the above. Add some thanks.
* africa (Africa/Luanda, Africa/Porto-Novo, Africa/Gaborone)
(Africa/Ouagadougou, Africa/Bujumbura, Africa/Douala, Africa/Bangui)
(Indian/Comoro, Africa/Kinshasa, Africa/Lubumbashi, Africa/Brazzaville)
(Africa/Djibouti, Africa/Malabo, Africa/Asmara, Africa/Addis_Ababa)
(Africa/Libreville, Africa/Banjul, Africa/Accra, Africa/Conakry)
(Africa/Maseru, Indian/Antananarivo, Africa/Blantyre, Africa/Bamako)
(Africa/Nouakchott, Indian/Mayotte, Africa/Maputo, Africa/Niamey)
(Africa/Kigali, Atlantic/St_Helena, Africa/Sao_Tome, Africa/Dakar)
(Africa/Freetown, Africa/Mogadishu, Africa/Mbabane, Africa/Dar_es_Salaam)
(Africa/Lome, Africa/Kampala, Africa/Lusaka, Africa/Harare):
* antarctica (Antarctica/Syowa):
Remove zone, replacing each with a link to a region that has had
the same UTC offset since 1970.
* NEWS: Document this.
This is like the 2013-09-02 change, but for the Pacific this time.
* antarctica (Antarctica/DumontDUrville):
* australasia (Pacific/Tahiti, Pacific/Saipan, Pacific/Majuro)
(Pacific/Chuuk, Pacific/Pohnpei, Pacific/Palau, Pacific/Funafuti)
(Pacific/Midway, Pacific/Wake, Pacific/Wallis):
Remove zone, replacing each with a link to a region that has had
the same UTC offset since 1970. This removes data that were
largely invented, either by us or almost surely by Shanks or his
sources.
* asia, australasia, northamerica: Create links accordingly.
* NEWS: Document this.
(Thanks to Vladimir Karpinsky for the Moscow corrections.)
Other corrections are taken from Milne 1899.
* asia (Asia/Tbilisi): Change LMT from 2:59:16 to 2:59:06.
(Asia/Tashkent): Change LMT from 4:37:12 to 4:37:11.
* europe (Europe/Helsinki): Change LMT from 1:39:52 to 1:39:49.
(Europe/Riga): Change LMT from 1:36:24 to 1:36:28.
(Europe/Moscow): Change LMT from 2:30:20 to 2:30:17.
Change 1916/9 time from 2:30:48 to 2:31:19.
(Asia/Yekaterinburg): Change LMT from 4:02:24 to 4:02:33.
(Asia/Irkutsk): Change LMT from 6:57:20 to 6:57:15.
(Asia/Vladivostok): Change LMT from 8:47:44 to 8:47:34.
* zone.tab (Europe/Moscow): Use Kilometer 0 point.
* NEWS: Document this.
* europe: (Europe/Samara): Prefer MSK/MSD for Moscow time and EET/EEST for
Eastern European time.
(Asia/Srednekolymsk): Fix incorrect link in commentary.
* zone.tab (Asia/Chita): Mention that the Moscow offset changes 2014-10-26.
My best guess is that the Asia/Tiksi entry is a false alarm,
and that the area hasn't diverged from Yakutsk since 1970.
* europe: Move zone.tab comments to zone.tab.
(Asia/Yakutsk): Move comment for Bulunsky district here,
Remove a comment about a draft Asia/Tiksi zone, containing the
Bulunsky district. We don't have sufficient evidence that it
ever diverged from Yakutsk after 1970.
* zone.tab (RU): Reorder entries to make more geographical sense.
Add comments for draft zones Asia/Chita, Asia/Srednekolymsk.
(Europe/Samara, Asia/Novokuznetsk, Asia/Magadan, Asia/Kamchatka)
(Asia/Anadyr): Mention that the Moscow offset changes 2014-10-26.
* NEWS: Document the above.
Also, a historical split.
* europe: Add commentary describing proposed future zones Asia/Chita and
Asia/Srednekolymsk, as well as proposed historical split Asia/Tiksi.
* NEWS: Document this.
This borrows heavily from Oscar van Vlijmen's earlier work here.
Mention recent mergers of regions as well.
* europe (Europe/Volgograd): Reattribute old comment to Paul Eggert.
(Asia/Yakutsk): Confirm that Zabaykalsky Krai will need its own zone
from 2014-10-26.
(Asia/Vladivostok): Mention that Bulunsky District will need its own
zone to correctly record its history.
(Asia/Magadan): Mention that the parts of Sakha (Yakutia) Republic and
the North Kuril Islands covered by this zone will need their own zone
from 2014-10-26.
* NEWS: Document this.
* europe: Fix an 80-column issue in commentary.
(Asia/Novokuznetsk): Switch abbreviation from NOVT to KRAT on 2014-10-26
at 02:00.
(Asia/Krasnoyarsk, Asia/Khandyga, Asia/Sakhalin, Asia/Ust-Nera):
Subtract an hour on 2014-10-26 at 02:00.
(Asia/Magadan): Subtract two hours at that time.
* zone.tab (Europe/Samara, Asia/Novokuznetsk, Asia/Magadan, Asia/Kamchatka)
(Asia/Anadyr): Update descriptions relative to Moscow time.
* NEWS: Document this.
* asia (Asia/Taipei):
DST in 1946 was adopted from May 15 through Sep 30.
DST in 1947 was adopted form Apr 15 through Oct 31.
DST in 1979 was adopted from Jul 1 through Sep 30.
* europe (Europe/Kaliningrad, Europe/Moscow, Europe/Simferopol)
(Europe/Volgograd, Asia/Yekaterinburg, Asia/Omsk)
(Asia/Novosibirsk, Asia/Irkutsk, Asia/Yakutsk, Asia/Vladivostok):
The transition this fall is at 02:00 local time, not 02:00 Moscow time.
The newspaper report was wrong. Also, add pointers to the bill and to
Krivenyshev's table. (Thanks to Alexander Krivenyshev.)
(Thanks to Yu-Cheng Chuang.) Also, update time zone abbreviations for
Japan's two time zones used 1896-1937. JWST now stands for Western
Standard Time, and JCST for Central Standard Time (formerly this was CJT).
* asia (Taiwan): Omit DST during 1945.
(Asia/Taipei): Add a transition to JWST on 1896-01-01, then to
JST on 1937-10-01, then to CST on 1945-10-25.
(Asia/Tokyo): Rename CJT to JCST. Transition to JCST was 1937-10-01,
not 1938.
(Asia/Seoul, Asia/Pyongyang): Call UT+9 "JCST" until 1937-01-01,
"JST" thereafter. Assume JCST/JST until Allied takeover after WWII.
* NEWS: Document this.
(Thanks to Alexander Krivenyshev.)
* europe: Document FET separately. Add a comment about
whether Zabajkal'skij kraj needs a separate zone.
(Europe/Kaliningrad, Europe/Moscow, Europe/Simferopol, Europe/Volgograd)
(Asia/Yekaterinburg, Asia/Omsk, Asia/Novosibirsk, Asia/Irkutsk)
(Asia/Yakutsk, and Asia/Vladivostok): Subtract an hour from the
time zone on 2014-10-26 at 02:00 Moscow time.
(Europe/Simferopol): Move to after Europe/Moscow, to simplify
similar maintenance in the future.
* NEWS: Document this.
* antarctica (Antarctica/Casey): Spell out AWST in comment.
* tz-link.htm: Use CST instead of EST in the example, as in Theory, to
match the current database.
* zic.8: Update Australia/Adelaide Zone line example to match current
usage.
* NEWS, asia: Document this.
* asia (Asia/Harbin, Asia/Chongqing, Asia/Kashgar): Remove.
These are now links in 'backward'.
(Asia/Shanghai): Change pre-standard-time offset from 8:05:57 to
8:05:43. Change transition to standard time from 1928 to 1901.
(Asia/Urumqi): Remove 1980 transition to UTC+8.
* backward (Asia/Harbin, Asia/Chongqing, Asia/Kashgar): New links.
(Asia/Chungking): Avoid link-to-link.
* zone.tab (Asia/Harbin, Asia/Chongqing, Asia/Kashgar): Remove.
* Theory: Use CST instead of EST in the example, so that it matches
the current database.
* antarctica (Antarctica/Casey): AWST, not WST.
* asia (Asia/Jayapura): ACST, not CST.
* australasia: Prepend "[A]" to "EST" in quote about EST.
* NEWS, australasia (Aus, Australia/Darwin, AW, Australia/Perth)
(Australia/Eucla, AQ, Holiday, Australia/Brisbane, Australia/Lindeman)
(AS, Australia/Adelaide, AT, Australia/Hobart, Australia/Currie, AV)
(Australia/Melbourne, AN, Australia/Sydney, Australia/Broken_Hill)
(LH, Australia/Lord_Howe, Antarctica/Macquarie):
Prefix Australian time zone abbreviations with "A", and switch
from "ST" to "DT" to denote daylight saving time. (Thanks to Ian
Abbott, Russ Allbery, Timothy Arceri, Alan Barrett, Stuart Bishop,
Shaun Bouckaert, Stephen Colebourne, Tobias Conradi, Mark Davis,
Robert Elz, Clive D.W. Feather, Dennis Ferguson, Edwin Groothuis,
Guy Harris, John Hawkinson, John Haxby, Brian Inglis, Paul Koning,
Kevin Lyda, Curtis Manwaring, Alan Mintz, Arthur David Olson, Matt
Paine, David Patte, Tim Parenti, random832, Derick Rethans, SM,
Peter Stagg, Rich Tibbett, Bennett Todd, and Garrett Wollman for
their contributions to this topic.)
Using '\-' to denote ASCII minus has problems in groff output, since
it generates a minus sign in the current font, and if you cut and
paste from the documentation the resulting text won't work. To avoid
the problem, define a string \*- that expands to ASCII minus in a
constant-width font in groff. Also, change some instances of \(mi and
\(pl to use plain \- and +, since we no longer need special fonts for
these. Finally, remove some no-longer-needed instances of "\^" after
italicized words.
* tz-link.htm, NEWS: Mention Moment Timezone, TimezoneJS.Date, Walltime-js,
and Timezone. (Thanks to a heads-up from Matt Johnson.) Also, list
license for timezone-olson.
* zic.8, NEWS: Say that "." and ".." file name
components are not allowed in output file names.
* zic.c (componentcheck, namecheck): Do not allow such
file name components.
* zic.c: Use angle brackets for <sys/stat.h>.
(dolink): Don't try to link from a directory, as this can
cause trouble on some systems when superuser.
(dolink, itsdir): Rewrite to avoid use of 'access', which is
problematic when setuid.
(itsdir): If S_ISDIR is defined, use plain 'stat' and S_ISDIR;
that's more reliable. Return -1 if trouble; all callers changed.
(mkdirs): Simplify by using mkdir-itsdir rather than
itsdir-mkdir-itsdir. Don't assume strerror preserves errno.
* zdump.c, zic.c: Don't include <ctype.h>, because the behavior if
its macros is locale-dependent if HAVE_GETTEXT, and we want the C
locale's semantics. Instead, use portable replacements for
ctype.h operations, with the desired semantics. All uses of
isalpha etc. replaced by calls to new functions is_alpha etc. or
by inline code.
(isascii): Remove.
(is_alpha): New function.
* zic.c (doabbr): Simplify by using is_alpha.
(is_space): New function.
* NEWS: Document the above.
* zic.c (componentcheck, namecheck): Warn about all '.'s in
the file name, not merely about "." and ".." file name components.
* zic.8 (DESCRIPTION), NEWS: Document this.
For *.txt files, UTF-8 is not that important, and avoiding it
is better for users with older or misconfigured manpage readers.
* Makefile (check_character_set): Check that *.txt files
contain only safe characters.
($(MANTXTS)): Build *.txt files in the C locale, not in en_US.utf8.
Also, document the longstanding exceptions to POSIX.
Derived from Arthur David Olson's patch in:
http://mm.icann.org/pipermail/tz/2014-June/021052.html
* Theory: Document the exceptional file name components in 'etcetera'
and 'backward' that contain '+' or digits, or are too long.
* zic.8 (DESCRIPTION): Document the change to zic.
* zic.c (component_length_check, namecheck): New functions.
(dolink, writezone): Use them to check that file name components
obey the POSIX rules, and do not contain "." or "..".
* NEWS: Document the above.
