0de7e7a066
We can easily enough obtain the root of the present source tree using the value of __file__, so might as well do so. Change-Id: If14773ac1127278b6018a090c0b376437b9c6eec Reviewed-by: Ievgenii Meshcheriakov <ievgenii.meshcheriakov@qt.io>
362 lines
14 KiB
Python
Executable File
362 lines
14 KiB
Python
Executable File
#!/usr/bin/env python3
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# Copyright (C) 2021 The Qt Company Ltd.
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# SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
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"""Parse CLDR data for QTimeZone use with MS-Windows
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Script to parse the CLDR common/supplemental/windowsZones.xml file and
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prepare its data for use in QTimeZone. See ``./cldr2qlocalexml.py`` for
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where to get the CLDR data. Pass its root directory as first parameter
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to this script. You can optionally pass the qtbase root directory as
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second parameter; it defaults to the root of the checkout containing
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this script. This script updates qtbase's
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src/corelib/time/qtimezoneprivate_data_p.h with the new data.
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"""
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import datetime
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from pathlib import Path
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import textwrap
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import argparse
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from localetools import unicode2hex, wrap_list, Error, SourceFileEditor, qtbase_root
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from cldr import CldrAccess
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### Data that may need updates in response to new entries in the CLDR file ###
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# This script shall report the updates you need to make, if any arise.
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# However, you may need to research the relevant zone's standard offset.
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# List of currently known Windows IDs.
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# If this script reports missing IDs, please add them here.
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# Look up the offset using (google and) timeanddate.com.
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# Not public so may safely be changed. Please keep in alphabetic order by ID.
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# ( Windows Id, Offset Seconds )
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windowsIdList = (
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('Afghanistan Standard Time', 16200),
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('Alaskan Standard Time', -32400),
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('Aleutian Standard Time', -36000),
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('Altai Standard Time', 25200),
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('Arab Standard Time', 10800),
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('Arabian Standard Time', 14400),
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('Arabic Standard Time', 10800),
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('Argentina Standard Time', -10800),
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('Astrakhan Standard Time', 14400),
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('Atlantic Standard Time', -14400),
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('AUS Central Standard Time', 34200),
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('Aus Central W. Standard Time', 31500),
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('AUS Eastern Standard Time', 36000),
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('Azerbaijan Standard Time', 14400),
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('Azores Standard Time', -3600),
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('Bahia Standard Time', -10800),
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('Bangladesh Standard Time', 21600),
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('Belarus Standard Time', 10800),
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('Bougainville Standard Time', 39600),
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('Canada Central Standard Time', -21600),
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('Cape Verde Standard Time', -3600),
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('Caucasus Standard Time', 14400),
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('Cen. Australia Standard Time', 34200),
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('Central America Standard Time', -21600),
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('Central Asia Standard Time', 21600),
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('Central Brazilian Standard Time', -14400),
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('Central Europe Standard Time', 3600),
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('Central European Standard Time', 3600),
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('Central Pacific Standard Time', 39600),
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('Central Standard Time (Mexico)', -21600),
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('Central Standard Time', -21600),
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('China Standard Time', 28800),
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('Chatham Islands Standard Time', 45900),
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('Cuba Standard Time', -18000),
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('Dateline Standard Time', -43200),
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('E. Africa Standard Time', 10800),
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('E. Australia Standard Time', 36000),
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('E. Europe Standard Time', 7200),
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('E. South America Standard Time', -10800),
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('Easter Island Standard Time', -21600),
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('Eastern Standard Time', -18000),
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('Eastern Standard Time (Mexico)', -18000),
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('Egypt Standard Time', 7200),
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('Ekaterinburg Standard Time', 18000),
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('Fiji Standard Time', 43200),
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('FLE Standard Time', 7200),
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('Georgian Standard Time', 14400),
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('GMT Standard Time', 0),
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('Greenland Standard Time', -10800),
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('Greenwich Standard Time', 0),
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('GTB Standard Time', 7200),
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('Haiti Standard Time', -18000),
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('Hawaiian Standard Time', -36000),
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('India Standard Time', 19800),
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('Iran Standard Time', 12600),
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('Israel Standard Time', 7200),
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('Jordan Standard Time', 7200),
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('Kaliningrad Standard Time', 7200),
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('Korea Standard Time', 32400),
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('Libya Standard Time', 7200),
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('Line Islands Standard Time', 50400),
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('Lord Howe Standard Time', 37800),
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('Magadan Standard Time', 36000),
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('Magallanes Standard Time', -10800), # permanent DST
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('Marquesas Standard Time', -34200),
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('Mauritius Standard Time', 14400),
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('Middle East Standard Time', 7200),
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('Montevideo Standard Time', -10800),
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('Morocco Standard Time', 0),
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('Mountain Standard Time (Mexico)', -25200),
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('Mountain Standard Time', -25200),
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('Myanmar Standard Time', 23400),
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('N. Central Asia Standard Time', 21600),
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('Namibia Standard Time', 3600),
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('Nepal Standard Time', 20700),
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('New Zealand Standard Time', 43200),
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('Newfoundland Standard Time', -12600),
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('Norfolk Standard Time', 39600),
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('North Asia East Standard Time', 28800),
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('North Asia Standard Time', 25200),
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('North Korea Standard Time', 30600),
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('Omsk Standard Time', 21600),
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('Pacific SA Standard Time', -10800),
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('Pacific Standard Time', -28800),
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('Pacific Standard Time (Mexico)', -28800),
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('Pakistan Standard Time', 18000),
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('Paraguay Standard Time', -14400),
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('Qyzylorda Standard Time', 18000), # a.k.a. Kyzylorda, in Kazakhstan
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('Romance Standard Time', 3600),
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('Russia Time Zone 3', 14400),
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('Russia Time Zone 10', 39600),
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('Russia Time Zone 11', 43200),
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('Russian Standard Time', 10800),
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('SA Eastern Standard Time', -10800),
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('SA Pacific Standard Time', -18000),
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('SA Western Standard Time', -14400),
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('Saint Pierre Standard Time', -10800), # New France
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('Sakhalin Standard Time', 39600),
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('Samoa Standard Time', 46800),
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('Sao Tome Standard Time', 0),
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('Saratov Standard Time', 14400),
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('SE Asia Standard Time', 25200),
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('Singapore Standard Time', 28800),
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('South Africa Standard Time', 7200),
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('South Sudan Standard Time', 7200),
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('Sri Lanka Standard Time', 19800),
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('Sudan Standard Time', 7200), # unless they mean South Sudan, +03:00
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('Syria Standard Time', 7200),
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('Taipei Standard Time', 28800),
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('Tasmania Standard Time', 36000),
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('Tocantins Standard Time', -10800),
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('Tokyo Standard Time', 32400),
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('Tomsk Standard Time', 25200),
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('Tonga Standard Time', 46800),
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('Transbaikal Standard Time', 32400), # Yakutsk
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('Turkey Standard Time', 7200),
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('Turks And Caicos Standard Time', -14400),
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('Ulaanbaatar Standard Time', 28800),
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('US Eastern Standard Time', -18000),
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('US Mountain Standard Time', -25200),
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('UTC-11', -39600),
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('UTC-09', -32400),
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('UTC-08', -28800),
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('UTC-02', -7200),
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('UTC', 0),
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('UTC+12', 43200),
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('UTC+13', 46800),
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('Venezuela Standard Time', -16200),
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('Vladivostok Standard Time', 36000),
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('Volgograd Standard Time', 14400),
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('W. Australia Standard Time', 28800),
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('W. Central Africa Standard Time', 3600),
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('W. Europe Standard Time', 3600),
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('W. Mongolia Standard Time', 25200), # Hovd
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('West Asia Standard Time', 18000),
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('West Bank Standard Time', 7200),
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('West Pacific Standard Time', 36000),
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('Yakutsk Standard Time', 32400),
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('Yukon Standard Time', -25200), # Non-DST Mountain Standard Time since 2020-11-01
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)
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# List of standard UTC IDs to use. Not public so may be safely changed.
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# Do not remove IDs, as each entry is part of the API/behavior guarantee.
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# ( UTC Id, Offset Seconds )
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utcIdList = (
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('UTC', 0), # Goes first so is default
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('UTC-14:00', -50400),
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('UTC-13:00', -46800),
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('UTC-12:00', -43200),
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('UTC-11:00', -39600),
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('UTC-10:00', -36000),
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('UTC-09:00', -32400),
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('UTC-08:00', -28800),
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('UTC-07:00', -25200),
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('UTC-06:00', -21600),
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('UTC-05:00', -18000),
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('UTC-04:30', -16200),
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('UTC-04:00', -14400),
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('UTC-03:30', -12600),
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('UTC-03:00', -10800),
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('UTC-02:00', -7200),
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('UTC-01:00', -3600),
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('UTC-00:00', 0),
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('UTC+00:00', 0),
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('UTC+01:00', 3600),
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('UTC+02:00', 7200),
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('UTC+03:00', 10800),
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('UTC+03:30', 12600),
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('UTC+04:00', 14400),
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('UTC+04:30', 16200),
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('UTC+05:00', 18000),
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('UTC+05:30', 19800),
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('UTC+05:45', 20700),
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('UTC+06:00', 21600),
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('UTC+06:30', 23400),
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('UTC+07:00', 25200),
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('UTC+08:00', 28800),
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('UTC+08:30', 30600),
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('UTC+09:00', 32400),
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('UTC+09:30', 34200),
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('UTC+10:00', 36000),
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('UTC+11:00', 39600),
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('UTC+12:00', 43200),
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('UTC+13:00', 46800),
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('UTC+14:00', 50400),
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)
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### End of data that may need updates in response to CLDR ###
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class ByteArrayData:
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def __init__(self):
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self.data = []
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self.hash = {}
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def append(self, s):
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s = s + '\0'
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if s in self.hash:
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return self.hash[s]
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lst = unicode2hex(s)
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index = len(self.data)
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if index > 0xffff:
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raise Error(f'Index ({index}) outside the uint16 range !')
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self.hash[s] = index
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self.data += lst
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return index
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def write(self, out, name):
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out(f'\nstatic constexpr char {name}[] = {{\n')
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out(wrap_list(self.data))
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out('\n};\n')
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class ZoneIdWriter (SourceFileEditor):
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def write(self, version, defaults, windowsIds):
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self.__writeWarning(version)
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windows, iana = self.__writeTables(self.writer.write, defaults, windowsIds)
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windows.write(self.writer.write, 'windowsIdData')
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iana.write(self.writer.write, 'ianaIdData')
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def __writeWarning(self, version):
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self.writer.write(f"""
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/*
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This part of the file was generated on {datetime.date.today()} from the
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Common Locale Data Repository v{version} file supplemental/windowsZones.xml
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http://www.unicode.org/cldr/
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Do not edit this code: run cldr2qtimezone.py on updated (or
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edited) CLDR data; see qtbase/util/locale_database/.
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*/
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""")
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@staticmethod
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def __writeTables(out, defaults, windowsIds):
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windowsIdData, ianaIdData = ByteArrayData(), ByteArrayData()
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# Write Windows/IANA table
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out('// Windows ID Key, Territory Enum, IANA ID Index\n')
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out('static constexpr QZoneData zoneDataTable[] = {\n')
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for index, data in sorted(windowsIds.items()):
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out(' {{ {:6d},{:6d},{:6d} }}, // {} / {}\n'.format(
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data['windowsKey'], data['territoryId'],
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ianaIdData.append(data['ianaList']),
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data['windowsId'], data['territory']))
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out('};\n\n')
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# Write Windows ID key table
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out('// Windows ID Key, Windows ID Index, IANA ID Index, UTC Offset\n')
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out('static constexpr QWindowsData windowsDataTable[] = {\n')
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for index, pair in enumerate(windowsIdList, 1):
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out(' {{ {:6d},{:6d},{:6d},{:6d} }}, // {}\n'.format(
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index,
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windowsIdData.append(pair[0]),
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ianaIdData.append(defaults[index]),
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pair[1], pair[0]))
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out('};\n\n')
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# Write UTC ID key table
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out('// IANA ID Index, UTC Offset\n')
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out('static constexpr QUtcData utcDataTable[] = {\n')
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for pair in utcIdList:
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out(' {{ {:6d},{:6d} }}, // {}\n'.format(
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ianaIdData.append(pair[0]), pair[1], pair[0]))
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out('};\n')
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return windowsIdData, ianaIdData
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def main(out, err):
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"""Parses CLDR's data and updates Qt's representation of it.
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Takes sys.stdout, sys.stderr (or equivalents) as
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arguments. Expects two command-line options: the root of the
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unpacked CLDR data-file tree and the root of the qtbase module's
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checkout. Updates QTimeZone's private data about Windows time-zone
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IDs."""
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parser = argparse.ArgumentParser(
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description="Update Qt's CLDR-derived timezone data.")
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parser.add_argument('cldr_path', help='path to the root of the CLDR tree')
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parser.add_argument('qtbase_path',
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help='path to the root of the qtbase source tree',
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nargs='?', default=qtbase_root)
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args = parser.parse_args()
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cldrPath = Path(args.cldr_path)
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qtPath = Path(args.qtbase_path)
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if not qtPath.is_dir():
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parser.error(f"No such Qt directory: {qtPath}")
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if not cldrPath.is_dir():
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parser.error(f"No such CLDR directory: {cldrPath}")
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dataFilePath = qtPath.joinpath('src/corelib/time/qtimezoneprivate_data_p.h')
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if not dataFilePath.is_file():
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parser.error(f'No such file: {dataFilePath}')
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try:
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version, defaults, winIds = CldrAccess(cldrPath).readWindowsTimeZones(
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dict((name, ind) for ind, name in enumerate((x[0] for x in windowsIdList), 1)))
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except IOError as e:
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parser.error(
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f'Failed to open common/supplemental/windowsZones.xml: {e}')
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return 1
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except Error as e:
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err.write('\n'.join(textwrap.wrap(
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f'Failed to read windowsZones.xml: {e}',
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subsequent_indent=' ', width=80)) + '\n')
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return 1
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out.write('Input file parsed, now writing data\n')
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try:
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with ZoneIdWriter(dataFilePath, qtPath) as writer:
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writer.write(version, defaults, winIds)
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except Exception as e:
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err.write(f'\nError while updating timezone data: {e}\n')
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return 1
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out.write(f'Data generation completed, please check the new file at {dataFilePath}\n')
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return 0
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if __name__ == '__main__':
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import sys
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sys.exit(main(sys.stdout, sys.stderr))
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