41458fafa0
Replace most uses of str.format() and string arithmetic by f-strings. This results in more compact code and the code is easier to read when using an appropriate editor. Task-number: QTBUG-83488 Pick-to: 6.2 Change-Id: I3409f745b5d0324985cbd5690f5eda8d09b869ca Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
654 lines
27 KiB
Python
654 lines
27 KiB
Python
# coding=utf8
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#############################################################################
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##
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## Copyright (C) 2021 The Qt Company Ltd.
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## Contact: https://www.qt.io/licensing/
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##
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## This file is part of the test suite of the Qt Toolkit.
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##
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## $QT_BEGIN_LICENSE:GPL-EXCEPT$
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## Commercial License Usage
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## Licensees holding valid commercial Qt licenses may use this file in
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## accordance with the commercial license agreement provided with the
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## Software or, alternatively, in accordance with the terms contained in
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## a written agreement between you and The Qt Company. For licensing terms
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## and conditions see https://www.qt.io/terms-conditions. For further
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## information use the contact form at https://www.qt.io/contact-us.
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##
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## GNU General Public License Usage
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## Alternatively, this file may be used under the terms of the GNU
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## General Public License version 3 as published by the Free Software
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## Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
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## included in the packaging of this file. Please review the following
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## information to ensure the GNU General Public License requirements will
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## be met: https://www.gnu.org/licenses/gpl-3.0.html.
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##
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## $QT_END_LICENSE$
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##
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#############################################################################
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"""Shared serialization-scanning code for QLocaleXML format.
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Provides classes:
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Locale -- common data-type representing one locale as a namespace
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QLocaleXmlWriter -- helper to write a QLocaleXML file
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QLocaleXmlReader -- helper to read a QLocaleXML file back in
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Support:
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Spacer -- provides control over indentation of the output.
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RelaxNG schema for the used file format can be found in qlocalexml.rnc.
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QLocaleXML files can be validated using:
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jing -c qlocalexml.rnc <file.xml>
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You can download jing from https://relaxng.org/jclark/jing.html if your
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package manager lacks the jing package.
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"""
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from xml.sax.saxutils import escape
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from localetools import Error
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# Tools used by Locale:
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def camel(seq):
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yield next(seq)
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for word in seq:
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yield word.capitalize()
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def camelCase(words):
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return ''.join(camel(iter(words)))
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def addEscapes(s):
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return ''.join(c if n < 128 else f'\\x{n:02x}'
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for n, c in ((ord(c), c) for c in s))
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def startCount(c, text): # strspn
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"""First index in text where it doesn't have a character in c"""
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assert text and text[0] in c
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try:
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return next((j for j, d in enumerate(text) if d not in c))
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except StopIteration:
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return len(text)
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def convertFormat(format):
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"""Convert date/time format-specier from CLDR to Qt
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Match up (as best we can) the differences between:
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* https://www.unicode.org/reports/tr35/tr35-dates.html#Date_Field_Symbol_Table
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* QDateTimeParser::parseFormat() and QLocalePrivate::dateTimeToString()
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"""
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# Compare and contrast dateconverter.py's convert_date().
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# Need to (check consistency and) reduce redundancy !
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result = ""
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i = 0
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while i < len(format):
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if format[i] == "'":
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result += "'"
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i += 1
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while i < len(format) and format[i] != "'":
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result += format[i]
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i += 1
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if i < len(format):
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result += "'"
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i += 1
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else:
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s = format[i:]
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if s.startswith('E'): # week-day
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n = startCount('E', s)
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if n < 3:
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result += 'ddd'
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elif n == 4:
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result += 'dddd'
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else: # 5: narrow, 6 short; but should be name, not number :-(
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result += 'd' if n < 6 else 'dd'
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i += n
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elif s[0] in 'ab': # am/pm
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# 'b' should distinguish noon/midnight, too :-(
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result += "AP"
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i += startCount('ab', s)
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elif s.startswith('S'): # fractions of seconds: count('S') == number of decimals to show
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result += 'z'
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i += startCount('S', s)
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elif s.startswith('V'): # long time zone specifiers (and a deprecated short ID)
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result += 't'
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i += startCount('V', s)
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elif s[0] in 'zv': # zone
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# Should use full name, e.g. "Central European Time", if 'zzzz' :-(
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# 'v' should get generic non-location format, e.g. PT for "Pacific Time", no DST indicator
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result += "t"
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i += startCount('zv', s)
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else:
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result += format[i]
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i += 1
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return result
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class QLocaleXmlReader (object):
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def __init__(self, filename):
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self.root = self.__parse(filename)
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# Lists of (id, name, code) triples:
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languages = tuple(self.__loadMap('language'))
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scripts = tuple(self.__loadMap('script'))
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territories = tuple(self.__loadMap('territory'))
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self.__likely = tuple(self.__likelySubtagsMap())
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# Mappings {ID: (name, code)}
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self.languages = dict((v[0], v[1:]) for v in languages)
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self.scripts = dict((v[0], v[1:]) for v in scripts)
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self.territories = dict((v[0], v[1:]) for v in territories)
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# Private mappings {name: (ID, code)}
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self.__langByName = dict((v[1], (v[0], v[2])) for v in languages)
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self.__textByName = dict((v[1], (v[0], v[2])) for v in scripts)
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self.__landByName = dict((v[1], (v[0], v[2])) for v in territories)
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# Other properties:
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self.dupes = set(v[1] for v in languages) & set(v[1] for v in territories)
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self.cldrVersion = self.__firstChildText(self.root, "version")
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def loadLocaleMap(self, calendars, grumble = lambda text: None):
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kid = self.__firstChildText
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likely = dict(self.__likely)
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for elt in self.__eachEltInGroup(self.root, 'localeList', 'locale'):
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locale = Locale.fromXmlData(lambda k: kid(elt, k), calendars)
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language = self.__langByName[locale.language][0]
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script = self.__textByName[locale.script][0]
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territory = self.__landByName[locale.territory][0]
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if language != 1: # C
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if territory == 0:
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grumble(f'loadLocaleMap: No territory id for "{locale.language}"\n')
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if script == 0:
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# Find default script for the given language and territory - see:
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# http://www.unicode.org/reports/tr35/#Likely_Subtags
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try:
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try:
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to = likely[(locale.language, 'AnyScript', locale.territory)]
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except KeyError:
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to = likely[(locale.language, 'AnyScript', 'AnyTerritory')]
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except KeyError:
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pass
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else:
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locale.script = to[1]
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script = self.__textByName[locale.script][0]
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yield (language, script, territory), locale
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def languageIndices(self, locales):
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index = 0
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for key, value in self.languages.items():
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i, count = 0, locales.count(key)
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if count > 0:
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i = index
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index += count
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yield i, value[0]
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def likelyMap(self):
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def tag(t):
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lang, script, land = t
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yield lang[1] if lang[0] else 'und'
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if script[0]: yield script[1]
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if land[0]: yield land[1]
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def ids(t):
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return tuple(x[0] for x in t)
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for pair in self.__likely:
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have = self.__fromNames(pair[0])
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give = self.__fromNames(pair[1])
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yield ('_'.join(tag(have)), ids(have),
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'_'.join(tag(give)), ids(give))
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def defaultMap(self):
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"""Map language and script to their default territory by ID.
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Yields ((language, script), territory) wherever the likely
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sub-tags mapping says language's default locale uses the given
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script and territory."""
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for have, give in self.__likely:
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if have[1:] == ('AnyScript', 'AnyTerritory') and give[2] != 'AnyTerritory':
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assert have[0] == give[0], (have, give)
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yield ((self.__langByName[give[0]][0],
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self.__textByName[give[1]][0]),
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self.__landByName[give[2]][0])
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# Implementation details:
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def __loadMap(self, category):
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kid = self.__firstChildText
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for element in self.__eachEltInGroup(self.root, f'{category}List', category):
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yield int(kid(element, 'id')), kid(element, 'name'), kid(element, 'code')
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def __likelySubtagsMap(self):
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def triplet(element, keys=('language', 'script', 'territory'), kid = self.__firstChildText):
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return tuple(kid(element, key) for key in keys)
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kid = self.__firstChildElt
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for elt in self.__eachEltInGroup(self.root, 'likelySubtags', 'likelySubtag'):
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yield triplet(kid(elt, "from")), triplet(kid(elt, "to"))
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def __fromNames(self, names):
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return self.__langByName[names[0]], self.__textByName[names[1]], self.__landByName[names[2]]
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# DOM access:
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from xml.dom import minidom
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@staticmethod
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def __parse(filename, read = minidom.parse):
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return read(filename).documentElement
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@staticmethod
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def __isNodeNamed(elt, name, TYPE=minidom.Node.ELEMENT_NODE):
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return elt.nodeType == TYPE and elt.nodeName == name
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del minidom
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@staticmethod
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def __eltWords(elt):
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child = elt.firstChild
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while child:
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if child.nodeType == elt.TEXT_NODE:
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yield child.nodeValue
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child = child.nextSibling
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@classmethod
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def __firstChildElt(cls, parent, name):
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child = parent.firstChild
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while child:
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if cls.__isNodeNamed(child, name):
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return child
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child = child.nextSibling
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raise Error(f'No {name} child found')
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@classmethod
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def __firstChildText(cls, elt, key):
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return ' '.join(cls.__eltWords(cls.__firstChildElt(elt, key)))
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@classmethod
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def __eachEltInGroup(cls, parent, group, key):
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try:
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element = cls.__firstChildElt(parent, group).firstChild
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except Error:
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element = None
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while element:
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if cls.__isNodeNamed(element, key):
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yield element
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element = element.nextSibling
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class Spacer (object):
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def __init__(self, indent = None, initial = ''):
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"""Prepare to manage indentation and line breaks.
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Arguments are both optional.
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First argument, indent, is either None (its default, for
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'minifying'), an ingeter (number of spaces) or the unit of
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text that is to be used for each indentation level (e.g. '\t'
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to use tabs). If indent is None, no indentation is added, nor
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are line-breaks; otherwise, self(text), for non-empty text,
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shall end with a newline and begin with indentation.
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Second argument, initial, is the initial indentation; it is
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ignored if indent is None. Indentation increases after each
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call to self(text) in which text starts with a tag and doesn't
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include its end-tag; indentation decreases if text starts with
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an end-tag. The text is not parsed any more carefully than
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just described.
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"""
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if indent is None:
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self.__call = lambda x: x
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else:
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self.__each = ' ' * indent if isinstance(indent, int) else indent
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self.current = initial
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self.__call = self.__wrap
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def __wrap(self, line):
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if not line:
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return '\n'
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indent = self.current
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if line.startswith('</'):
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indent = self.current = indent[:-len(self.__each)]
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elif line.startswith('<') and not line.startswith('<!'):
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cut = line.find('>')
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tag = (line[1:] if cut < 0 else line[1 : cut]).strip().split()[0]
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if f'</{tag}>' not in line:
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self.current += self.__each
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return indent + line + '\n'
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def __call__(self, line):
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return self.__call(line)
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class QLocaleXmlWriter (object):
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def __init__(self, save = None, space = Spacer(4)):
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"""Set up to write digested CLDR data as QLocale XML.
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Arguments are both optional.
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First argument, save, is None (its default) or a callable that
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will write content to where you intend to save it. If None, it
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is replaced with a callable that prints the given content,
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suppressing the newline (but see the following); this is
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equivalent to passing sys.stdout.write.
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Second argument, space, is an object to call on each text
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output to prepend indentation and append newlines, or not as
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the case may be. The default is a Spacer(4), which grows
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indent by four spaces after each unmatched new tag and shrinks
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back on a close-tag (its parsing is naive, but adequate to how
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this class uses it), while adding a newline to each line.
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"""
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self.__rawOutput = self.__printit if save is None else save
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self.__wrap = space
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self.__write('<localeDatabase>')
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# Output of various sections, in their usual order:
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def enumData(self):
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from enumdata import language_map, script_map, territory_map
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self.__enumTable('language', language_map)
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self.__enumTable('script', script_map)
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self.__enumTable('territory', territory_map)
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# Prepare to detect any unused codes (see __writeLocale(), close()):
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self.__languages = set(p[1] for p in language_map.values()
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if not p[1].isspace())
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self.__scripts = set(p[1] for p in script_map.values()
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if p[1] != 'ZZ')
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self.__territories = set(p[1] for p in territory_map.values()
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if p[1] != 'Zzzz')
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def likelySubTags(self, entries):
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self.__openTag('likelySubtags')
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for have, give in entries:
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self.__openTag('likelySubtag')
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self.__likelySubTag('from', have)
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self.__likelySubTag('to', give)
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self.__closeTag('likelySubtag')
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self.__closeTag('likelySubtags')
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def locales(self, locales, calendars):
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self.__openTag('localeList')
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self.__openTag('locale')
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self.__writeLocale(Locale.C(calendars), calendars)
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self.__closeTag('locale')
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for key in sorted(locales.keys()):
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self.__openTag('locale')
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self.__writeLocale(locales[key], calendars)
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self.__closeTag('locale')
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self.__closeTag('localeList')
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def version(self, cldrVersion):
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self.inTag('version', cldrVersion)
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def inTag(self, tag, text):
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self.__write(f'<{tag}>{text}</{tag}>')
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def close(self, grumble):
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"""Finish writing and grumble any issues discovered."""
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if self.__rawOutput != self.__complain:
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self.__write('</localeDatabase>')
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self.__rawOutput = self.__complain
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if self.__languages or self.__scripts or self.territories:
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grumble('Some enum members are unused, corresponding to these tags:\n')
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import textwrap
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def kvetch(kind, seq, g = grumble, w = textwrap.wrap):
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g('\n\t'.join(w(f' {kind}: {", ".join(sorted(seq))}', width=80)) + '\n')
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if self.__languages:
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kvetch('Languages', self.__languages)
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if self.__scripts:
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kvetch('Scripts', self.__scripts)
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if self.__territories:
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kvetch('Territories', self.__territories)
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grumble('It may make sense to deprecate them.\n')
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# Implementation details
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@staticmethod
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def __printit(text):
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print(text, end='')
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@staticmethod
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def __complain(text):
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raise Error('Attempted to write data after closing :-(')
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def __enumTable(self, tag, table):
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self.__openTag(f'{tag}List')
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for key, value in table.items():
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self.__openTag(tag)
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self.inTag('name', value[0])
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self.inTag('id', key)
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self.inTag('code', value[1])
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self.__closeTag(tag)
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self.__closeTag(f'{tag}List')
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def __likelySubTag(self, tag, likely):
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self.__openTag(tag)
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self.inTag('language', likely[0])
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self.inTag('script', likely[1])
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self.inTag('territory', likely[2])
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# self.inTag('variant', likely[3])
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self.__closeTag(tag)
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def __writeLocale(self, locale, calendars):
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locale.toXml(self.inTag, calendars)
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self.__languages.discard(locale.language_code)
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self.__scripts.discard(locale.script_code)
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self.__territories.discard(locale.territory_code)
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def __openTag(self, tag):
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self.__write(f'<{tag}>')
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def __closeTag(self, tag):
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self.__write(f'</{tag}>')
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def __write(self, line):
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self.__rawOutput(self.__wrap(line))
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class Locale (object):
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"""Holder for the assorted data representing one locale.
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Implemented as a namespace; its constructor and update() have the
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same signatures as those of a dict, acting on the instance's
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__dict__, so the results are accessed as attributes rather than
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mapping keys."""
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def __init__(self, data=None, **kw):
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self.update(data, **kw)
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def update(self, data=None, **kw):
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if data: self.__dict__.update(data)
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if kw: self.__dict__.update(kw)
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def __len__(self): # Used when testing as a boolean
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return len(self.__dict__)
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@staticmethod
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def propsMonthDay(scale, lengths=('long', 'short', 'narrow')):
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for L in lengths:
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yield camelCase((L, scale))
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yield camelCase(('standalone', L, scale))
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# Expected to be numbers, read with int():
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__asint = ("currencyDigits", "currencyRounding")
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# Convert day-name to Qt day-of-week number:
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__asdow = ("firstDayOfWeek", "weekendStart", "weekendEnd")
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# Convert from CLDR format-strings to QDateTimeParser ones:
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__asfmt = ("longDateFormat", "shortDateFormat", "longTimeFormat", "shortTimeFormat")
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# Just use the raw text:
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__astxt = ("language", "languageEndonym", "script", "territory", "territoryEndonym",
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"decimal", "group", "zero",
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"list", "percent", "minus", "plus", "exp",
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"quotationStart", "quotationEnd",
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"alternateQuotationStart", "alternateQuotationEnd",
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"listPatternPartStart", "listPatternPartMiddle",
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||
"listPatternPartEnd", "listPatternPartTwo", "am", "pm",
|
||
'byte_unit', 'byte_si_quantified', 'byte_iec_quantified',
|
||
"currencyIsoCode", "currencySymbol", "currencyDisplayName",
|
||
"currencyFormat", "currencyNegativeFormat")
|
||
|
||
# Day-of-Week numbering used by Qt:
|
||
__qDoW = {"mon": 1, "tue": 2, "wed": 3, "thu": 4, "fri": 5, "sat": 6, "sun": 7}
|
||
|
||
@classmethod
|
||
def fromXmlData(cls, lookup, calendars=('gregorian',)):
|
||
"""Constructor from the contents of XML elements.
|
||
|
||
Single parameter, lookup, is called with the names of XML
|
||
elements that should contain the relevant data, within a CLDR
|
||
locale element (within a localeList element); these names are
|
||
used for the attributes of the object constructed. Attribute
|
||
values are obtained by suitably digesting the returned element
|
||
texts.\n"""
|
||
data = {}
|
||
for k in cls.__asint:
|
||
data[k] = int(lookup(k))
|
||
|
||
for k in cls.__asdow:
|
||
data[k] = cls.__qDoW[lookup(k)]
|
||
|
||
for k in cls.__asfmt:
|
||
data[k] = convertFormat(lookup(k))
|
||
|
||
for k in cls.__astxt + tuple(cls.propsMonthDay('days')):
|
||
data['listDelim' if k == 'list' else k] = lookup(k)
|
||
|
||
for k in cls.propsMonthDay('months'):
|
||
data[k] = dict((cal, lookup('_'.join((k, cal)))) for cal in calendars)
|
||
|
||
grouping = lookup('groupSizes').split(';')
|
||
data.update(groupLeast = int(grouping[0]),
|
||
groupHigher = int(grouping[1]),
|
||
groupTop = int(grouping[2]))
|
||
|
||
return cls(data)
|
||
|
||
def toXml(self, write, calendars=('gregorian',)):
|
||
"""Writes its data as QLocale XML.
|
||
|
||
First argument, write, is a callable taking the name and
|
||
content of an XML element; it is expected to be the inTag
|
||
bound method of a QLocaleXmlWriter instance.
|
||
|
||
Optional second argument is a list of calendar names, in the
|
||
form used by CLDR; its default is ('gregorian',).
|
||
"""
|
||
get = lambda k: getattr(self, k)
|
||
for key in ('language', 'script', 'territory'):
|
||
write(key, get(key))
|
||
write(f'{key}code', get(f'{key}_code'))
|
||
|
||
for key in ('decimal', 'group', 'zero', 'list',
|
||
'percent', 'minus', 'plus', 'exp'):
|
||
write(key, get(key))
|
||
|
||
for key in ('languageEndonym', 'territoryEndonym',
|
||
'quotationStart', 'quotationEnd',
|
||
'alternateQuotationStart', 'alternateQuotationEnd',
|
||
'listPatternPartStart', 'listPatternPartMiddle',
|
||
'listPatternPartEnd', 'listPatternPartTwo',
|
||
'byte_unit', 'byte_si_quantified', 'byte_iec_quantified',
|
||
'am', 'pm', 'firstDayOfWeek',
|
||
'weekendStart', 'weekendEnd',
|
||
'longDateFormat', 'shortDateFormat',
|
||
'longTimeFormat', 'shortTimeFormat',
|
||
'currencyIsoCode', 'currencySymbol', 'currencyDisplayName',
|
||
'currencyFormat', 'currencyNegativeFormat'
|
||
) + tuple(self.propsMonthDay('days')) + tuple(
|
||
'_'.join((k, cal))
|
||
for k in self.propsMonthDay('months')
|
||
for cal in calendars):
|
||
write(key, escape(get(key)))
|
||
|
||
write('groupSizes', ';'.join(str(x) for x in get('groupSizes')))
|
||
for key in ('currencyDigits', 'currencyRounding'):
|
||
write(key, get(key))
|
||
|
||
# Tools used by __monthNames:
|
||
def fullName(i, name): return name
|
||
def firstThree(i, name): return name[:3]
|
||
def initial(i, name): return name[:1]
|
||
def number(i, name): return str(i + 1)
|
||
def islamicShort(i, name):
|
||
if not name: return name
|
||
if name == 'Shawwal': return 'Shaw.'
|
||
words = name.split()
|
||
if words[0].startswith('Dhu'):
|
||
words[0] = words[0][:7] + '.'
|
||
elif len(words[0]) > 3:
|
||
words[0] = words[0][:3] + '.'
|
||
return ' '.join(words)
|
||
@staticmethod
|
||
def __monthNames(calendars,
|
||
known={ # Map calendar to (names, extractors...):
|
||
# TODO: do we even need these ? CLDR's root.xml seems to
|
||
# have them, complete with yeartype="leap" handling for
|
||
# Hebrew's extra.
|
||
'gregorian': (('January', 'February', 'March', 'April', 'May', 'June', 'July',
|
||
'August', 'September', 'October', 'November', 'December'),
|
||
# Extractor pairs, (plain, standalone)
|
||
(fullName, fullName), # long
|
||
(firstThree, firstThree), # short
|
||
(number, initial)), # narrow
|
||
'persian': (('Farvardin', 'Ordibehesht', 'Khordad', 'Tir', 'Mordad',
|
||
'Shahrivar', 'Mehr', 'Aban', 'Azar', 'Dey', 'Bahman', 'Esfand'),
|
||
(fullName, fullName),
|
||
(firstThree, firstThree),
|
||
(number, initial)),
|
||
'islamic': (('Muharram', 'Safar', 'Rabiʻ I', 'Rabiʻ II', 'Jumada I',
|
||
'Jumada II', 'Rajab', 'Shaʻban', 'Ramadan', 'Shawwal',
|
||
'Dhuʻl-Qiʻdah', 'Dhuʻl-Hijjah'),
|
||
(fullName, fullName),
|
||
(islamicShort, islamicShort),
|
||
(number, number)),
|
||
'hebrew': (('Tishri', 'Heshvan', 'Kislev', 'Tevet', 'Shevat', 'Adar I',
|
||
'Adar', 'Nisan', 'Iyar', 'Sivan', 'Tamuz', 'Av'),
|
||
(fullName, fullName),
|
||
(fullName, fullName),
|
||
(number, number)),
|
||
},
|
||
sizes=('long', 'short', 'narrow')):
|
||
for cal in calendars:
|
||
try:
|
||
data = known[cal]
|
||
except KeyError as e: # Need to add an entry to known, above.
|
||
e.args += ('Unsupported calendar:', cal)
|
||
raise
|
||
names, get = data[0], data[1:]
|
||
for n, size in enumerate(sizes):
|
||
yield ('_'.join((camelCase((size, 'months')), cal)),
|
||
';'.join(get[n][0](i, x) for i, x in enumerate(names)))
|
||
yield ('_'.join((camelCase(('standalone', size, 'months')), cal)),
|
||
';'.join(get[n][1](i, x) for i, x in enumerate(names)))
|
||
del fullName, firstThree, initial, number, islamicShort
|
||
|
||
@classmethod
|
||
def C(cls, calendars=('gregorian',),
|
||
days = ('Sunday', 'Monday', 'Tuesday', 'Wednesday',
|
||
'Thursday', 'Friday', 'Saturday'),
|
||
quantifiers=('k', 'M', 'G', 'T', 'P', 'E')):
|
||
"""Returns an object representing the C locale."""
|
||
return cls(cls.__monthNames(calendars),
|
||
language='C', language_code='0', languageEndonym='',
|
||
script='AnyScript', script_code='0',
|
||
territory='AnyTerritory', territory_code='0', territoryEndonym='',
|
||
groupSizes=(3, 3, 1),
|
||
decimal='.', group=',', list=';', percent='%',
|
||
zero='0', minus='-', plus='+', exp='e',
|
||
quotationStart='"', quotationEnd='"',
|
||
alternateQuotationStart='\'', alternateQuotationEnd='\'',
|
||
listPatternPartStart='%1, %2',
|
||
listPatternPartMiddle='%1, %2',
|
||
listPatternPartEnd='%1, %2',
|
||
listPatternPartTwo='%1, %2',
|
||
byte_unit='bytes',
|
||
byte_si_quantified=';'.join(q + 'B' for q in quantifiers),
|
||
byte_iec_quantified=';'.join(q.upper() + 'iB' for q in quantifiers),
|
||
am='AM', pm='PM', firstDayOfWeek='mon',
|
||
weekendStart='sat', weekendEnd='sun',
|
||
longDateFormat='EEEE, d MMMM yyyy', shortDateFormat='d MMM yyyy',
|
||
longTimeFormat='HH:mm:ss z', shortTimeFormat='HH:mm:ss',
|
||
longDays=';'.join(days),
|
||
shortDays=';'.join(d[:3] for d in days),
|
||
narrowDays='7;1;2;3;4;5;6',
|
||
standaloneLongDays=';'.join(days),
|
||
standaloneShortDays=';'.join(d[:3] for d in days),
|
||
standaloneNarrowDays=';'.join(d[:1] for d in days),
|
||
currencyIsoCode='', currencySymbol='',
|
||
currencyDisplayName='',
|
||
currencyDigits=2, currencyRounding=1,
|
||
currencyFormat='%1%2', currencyNegativeFormat='')
|