qt5base-lts/util/locale_database/qlocalexml2cpp.py
Ievgenii Meshcheriakov e9519d207e locale_database: Use context manager interface to update source files
Use context manager interface (with statement) to atomically update source
files. This ensures that all files are properly closed and the temporary
file is removed even in case of errors.

Task-number: QTBUG-83488
Pick-to: 6.2
Change-Id: I18cd96f1d03e467dea6212f6576a41e65f414ce1
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
Reviewed-by: Cristian Maureira-Fredes <cristian.maureira-fredes@qt.io>
2021-07-20 16:51:51 +02:00

597 lines
24 KiB
Python
Executable File

#!/usr/bin/env python3
#############################################################################
##
## Copyright (C) 2021 The Qt Company Ltd.
## Contact: https://www.qt.io/licensing/
##
## This file is part of the test suite of the Qt Toolkit.
##
## $QT_BEGIN_LICENSE:GPL-EXCEPT$
## Commercial License Usage
## Licensees holding valid commercial Qt licenses may use this file in
## accordance with the commercial license agreement provided with the
## Software or, alternatively, in accordance with the terms contained in
## a written agreement between you and The Qt Company. For licensing terms
## and conditions see https://www.qt.io/terms-conditions. For further
## information use the contact form at https://www.qt.io/contact-us.
##
## GNU General Public License Usage
## Alternatively, this file may be used under the terms of the GNU
## General Public License version 3 as published by the Free Software
## Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
## included in the packaging of this file. Please review the following
## information to ensure the GNU General Public License requirements will
## be met: https://www.gnu.org/licenses/gpl-3.0.html.
##
## $QT_END_LICENSE$
##
#############################################################################
"""Script to generate C++ code from CLDR data in QLocaleXML form
See ``cldr2qlocalexml.py`` for how to generate the QLocaleXML data itself.
Pass the output file from that as first parameter to this script; pass
the root of the qtbase check-out as second parameter.
"""
import datetime
import argparse
from pathlib import Path
from qlocalexml import QLocaleXmlReader
from localetools import unicode2hex, wrap_list, Error, Transcriber, SourceFileEditor
class LocaleKeySorter:
"""Sort-ordering representation of a locale key.
This is for passing to a sorting algorithm as key-function, that
it applies to each entry in the list to decide which belong
earlier. It adds an entry to the (language, script, territory)
triple, just before script, that sorts earlier if the territory is
the default for the given language and script, later otherwise.
"""
# TODO: study the relationship between this and CLDR's likely
# sub-tags algorithm. Work out how locale sort-order impacts
# QLocale's likely sub-tag matching algorithms. Make sure this is
# sorting in an order compatible with those algorithms.
def __init__(self, defaults):
self.map = dict(defaults)
def foreign(self, key):
default = self.map.get(key[:2])
return default is None or default != key[2]
def __call__(self, key):
# TODO: should we compare territory before or after script ?
return (key[0], self.foreign(key)) + key[1:]
class StringDataToken:
def __init__(self, index, length, bits):
if index > 0xffff:
raise ValueError(f'Start-index ({index}) exceeds the uint16 range!')
if length >= (1 << bits):
raise ValueError(f'Data size ({length}) exceeds the {bits}-bit range!')
self.index = index
self.length = length
class StringData:
def __init__(self, name):
self.data = []
self.hash = {}
self.name = name
self.text = '' # Used in quick-search for matches in data
def append(self, s, bits = 8):
try:
token = self.hash[s]
except KeyError:
token = self.__store(s, bits)
self.hash[s] = token
return token
def __store(self, s, bits):
"""Add string s to known data.
Seeks to avoid duplication, where possible.
For example, short-forms may be prefixes of long-forms.
"""
if not s:
return StringDataToken(0, 0, bits)
ucs2 = unicode2hex(s)
try:
index = self.text.index(s) - 1
matched = 0
while matched < len(ucs2):
index, matched = self.data.index(ucs2[0], index + 1), 1
if index + len(ucs2) >= len(self.data):
raise ValueError # not found after all !
while matched < len(ucs2) and self.data[index + matched] == ucs2[matched]:
matched += 1
except ValueError:
index = len(self.data)
self.data += ucs2
self.text += s
assert index >= 0
try:
return StringDataToken(index, len(ucs2), bits)
except ValueError as e:
e.args += (self.name, s)
raise
def write(self, fd):
if len(self.data) > 0xffff:
raise ValueError(f'Data is too big ({len(self.data)}) for quint16 index to its end!',
self.name)
fd.write(f"\nstatic const char16_t {self.name}[] = {{\n")
fd.write(wrap_list(self.data))
fd.write("\n};\n")
def currencyIsoCodeData(s):
if s:
return '{' + ",".join(str(ord(x)) for x in s) + '}'
return "{0,0,0}"
class LocaleSourceEditor (SourceFileEditor):
def __init__(self, path: Path, temp: Path, version: str):
super().__init__(path, temp)
self.version = version
def onEnter(self) -> None:
super().onEnter()
self.writer.write(f"""
/*
This part of the file was generated on {datetime.date.today()} from the
Common Locale Data Repository v{self.version}
http://www.unicode.org/cldr/
Do not edit this section: instead regenerate it using
cldr2qlocalexml.py and qlocalexml2cpp.py on updated (or
edited) CLDR data; see qtbase/util/locale_database/.
*/
""")
class LocaleDataWriter (LocaleSourceEditor):
def likelySubtags(self, likely):
# First sort likely, so that we can use binary search in C++
# code. Although the entries are (lang, script, region), sort
# as (lang, region, script) and sort 0 after all non-zero
# values. This ensures that, when several mappings partially
# match a requested locale, the one we should prefer to use
# appears first.
huge = 0x10000 # > any ushort; all tag values are ushort
def keyLikely(entry):
have = entry[1] # Numeric id triple
return have[0] or huge, have[2] or huge, have[1] or huge # language, region, script
likely = sorted(likely, key=keyLikely)
i = 0
self.writer.write('static const QLocaleId likely_subtags[] = {\n')
for had, have, got, give in likely:
i += 1
self.writer.write(' {{ {:3d}, {:3d}, {:3d} }}'.format(*have))
self.writer.write(', {{ {:3d}, {:3d}, {:3d} }}'.format(*give))
self.writer.write(' ' if i == len(likely) else ',')
self.writer.write(f' // {had} -> {got}\n')
self.writer.write('};\n\n')
def localeIndex(self, indices):
self.writer.write('static const quint16 locale_index[] = {\n')
for index, name in indices:
self.writer.write(f'{index:6d}, // {name}\n')
self.writer.write(' 0 // trailing 0\n')
self.writer.write('};\n\n')
def localeData(self, locales, names):
list_pattern_part_data = StringData('list_pattern_part_data')
single_character_data = StringData('single_character_data')
date_format_data = StringData('date_format_data')
time_format_data = StringData('time_format_data')
days_data = StringData('days_data')
am_data = StringData('am_data')
pm_data = StringData('pm_data')
byte_unit_data = StringData('byte_unit_data')
currency_symbol_data = StringData('currency_symbol_data')
currency_display_name_data = StringData('currency_display_name_data')
currency_format_data = StringData('currency_format_data')
endonyms_data = StringData('endonyms_data')
# Locale data
self.writer.write('static const QLocaleData locale_data[] = {\n')
# Table headings: keep each label centred in its field, matching line_format:
self.writer.write(' // '
# Width 6 + comma
' lang ' # IDs
'script '
' terr '
# Range entries (all start-indices, then all sizes)
# Width 5 + comma
'lStrt ' # List pattern
'lpMid '
'lpEnd '
'lPair '
'lDelm ' # List delimiter
# Representing numbers
' dec '
'group '
'prcnt '
' zero '
'minus '
'plus '
' exp '
# Quotation marks
'qtOpn '
'qtEnd '
'altQO '
'altQE '
'lDFmt ' # Date format
'sDFmt '
'lTFmt ' # Time format
'sTFmt '
'slDay ' # Day names
'lDays '
'ssDys '
'sDays '
'snDay '
'nDays '
' am ' # am/pm indicators
' pm '
' byte '
'siQnt '
'iecQn '
'crSym ' # Currency formatting
'crDsp '
'crFmt '
'crFNg '
'ntLng ' # Name of language in itself, and of territory
'ntTer '
# Width 3 + comma for each size; no header
+ ' ' * 37 +
# Strays (char array, bit-fields):
# Width 10 + 2 spaces + comma
' currISO '
# Width 6 + comma
'curDgt ' # Currency digits
'curRnd ' # Currencty rounding (unused: QTBUG-81343)
'dow1st ' # First day of week
' wknd+ ' # Week-end start/end days
' wknd- '
'grpTop '
'grpMid '
'grpEnd'
# No trailing space on last entry (be sure to
# pad before adding anything after it).
'\n')
formatLine = ''.join((
' {{ ',
# Locale-identifier
'{:6d},' * 3,
# List patterns, date/time formats, day names, am/pm
# SI/IEC byte-unit abbreviations
# Currency and endonyms
# Range starts
'{:5d},' * 37,
# Range sizes
'{:3d},' * 37,
# Currency ISO code
' {:>10s}, ',
# Currency formatting
'{:6d},{:6d}',
# Day of week and week-end
',{:6d}' * 3,
# Number group sizes
',{:6d}' * 3,
' }}')).format
for key in names:
locale = locales[key]
# Sequence of StringDataToken:
ranges = (tuple(list_pattern_part_data.append(p) for p in # 5 entries:
(locale.listPatternPartStart, locale.listPatternPartMiddle,
locale.listPatternPartEnd, locale.listPatternPartTwo,
locale.listDelim)) +
tuple(single_character_data.append(p) for p in # 11 entries
(locale.decimal, locale.group, locale.percent, locale.zero,
locale.minus, locale.plus, locale.exp,
locale.quotationStart, locale.quotationEnd,
locale.alternateQuotationStart, locale.alternateQuotationEnd)) +
tuple (date_format_data.append(f) for f in # 2 entries:
(locale.longDateFormat, locale.shortDateFormat)) +
tuple(time_format_data.append(f) for f in # 2 entries:
(locale.longTimeFormat, locale.shortTimeFormat)) +
tuple(days_data.append(d) for d in # 6 entries:
(locale.standaloneLongDays, locale.longDays,
locale.standaloneShortDays, locale.shortDays,
locale.standaloneNarrowDays, locale.narrowDays)) +
(am_data.append(locale.am), pm_data.append(locale.pm)) + # 2 entries
tuple(byte_unit_data.append(b) for b in # 3 entries:
(locale.byte_unit,
locale.byte_si_quantified,
locale.byte_iec_quantified)) +
(currency_symbol_data.append(locale.currencySymbol),
currency_display_name_data.append(locale.currencyDisplayName),
currency_format_data.append(locale.currencyFormat),
currency_format_data.append(locale.currencyNegativeFormat),
endonyms_data.append(locale.languageEndonym),
endonyms_data.append(locale.territoryEndonym)) # 6 entries
) # Total: 37 entries
assert len(ranges) == 37
self.writer.write(formatLine(*(
key +
tuple(r.index for r in ranges) +
tuple(r.length for r in ranges) +
(currencyIsoCodeData(locale.currencyIsoCode),
locale.currencyDigits,
locale.currencyRounding, # unused (QTBUG-81343)
locale.firstDayOfWeek, locale.weekendStart, locale.weekendEnd,
locale.groupTop, locale.groupHigher, locale.groupLeast) ))
+ f', // {locale.language}/{locale.script}/{locale.territory}\n')
self.writer.write(formatLine(*( # All zeros, matching the format:
(0,) * 3 + (0,) * 37 * 2
+ (currencyIsoCodeData(0),)
+ (0,) * 8 ))
+ ' // trailing zeros\n')
self.writer.write('};\n')
# StringData tables:
for data in (list_pattern_part_data, single_character_data,
date_format_data, time_format_data, days_data,
byte_unit_data, am_data, pm_data, currency_symbol_data,
currency_display_name_data, currency_format_data,
endonyms_data):
data.write(self.writer)
@staticmethod
def __writeNameData(out, book, form):
out(f'static const char {form}_name_list[] =\n')
out('"Default\\0"\n')
for key, value in book.items():
if key == 0:
continue
out(f'"{value[0]}\\0"\n')
out(';\n\n')
out(f'static const quint16 {form}_name_index[] = {{\n')
out(f' 0, // Any{form.capitalize()}\n')
index = 8
for key, value in book.items():
if key == 0:
continue
name = value[0]
out(f'{index:6d}, // {name}\n')
index += len(name) + 1
out('};\n\n')
@staticmethod
def __writeCodeList(out, book, form, width):
out(f'static const unsigned char {form}_code_list[] =\n')
for key, value in book.items():
code = value[1]
code += r'\0' * max(width - len(code), 0)
out(f'"{code}" // {value[0]}\n')
out(';\n\n')
def languageNames(self, languages):
self.__writeNameData(self.writer.write, languages, 'language')
def scriptNames(self, scripts):
self.__writeNameData(self.writer.write, scripts, 'script')
def territoryNames(self, territories):
self.__writeNameData(self.writer.write, territories, 'territory')
# TODO: unify these next three into the previous three; kept
# separate for now to verify we're not changing data.
def languageCodes(self, languages):
self.__writeCodeList(self.writer.write, languages, 'language', 3)
def scriptCodes(self, scripts):
self.__writeCodeList(self.writer.write, scripts, 'script', 4)
def territoryCodes(self, territories): # TODO: unify with territoryNames()
self.__writeCodeList(self.writer.write, territories, 'territory', 3)
class CalendarDataWriter (LocaleSourceEditor):
formatCalendar = (
' {{'
+ ','.join(('{:6d}',) * 3 + ('{:5d}',) * 6 + ('{:3d}',) * 6)
+ ' }},').format
def write(self, calendar, locales, names):
months_data = StringData('months_data')
self.writer.write('static const QCalendarLocale locale_data[] = {\n')
self.writer.write(
' //'
# IDs, width 7 (6 + comma)
' lang '
' script'
' terr '
# Month-name start-indices, width 6 (5 + comma)
'sLong '
' long '
'sShrt '
'short '
'sNarw '
'narow '
# No individual headers for the sizes.
'Sizes...'
'\n')
for key in names:
locale = locales[key]
# Sequence of StringDataToken:
try:
# Twelve long month names can add up to more than 256 (e.g. kde_TZ: 264)
ranges = (tuple(months_data.append(m[calendar], 16) for m in
(locale.standaloneLongMonths, locale.longMonths)) +
tuple(months_data.append(m[calendar]) for m in
(locale.standaloneShortMonths, locale.shortMonths,
locale.standaloneNarrowMonths, locale.narrowMonths)))
except ValueError as e:
e.args += (locale.language, locale.script, locale.territory)
raise
self.writer.write(
self.formatCalendar(*(
key +
tuple(r.index for r in ranges) +
tuple(r.length for r in ranges) ))
+ f'// {locale.language}/{locale.script}/{locale.territory}\n')
self.writer.write(self.formatCalendar(*( (0,) * (3 + 6 * 2) ))
+ '// trailing zeros\n')
self.writer.write('};\n')
months_data.write(self.writer)
class LocaleHeaderWriter (SourceFileEditor):
def __init__(self, path, temp, dupes):
super().__init__(path, temp)
self.__dupes = dupes
def languages(self, languages):
self.__enum('Language', languages, self.__language)
self.writer.write('\n')
def territories(self, territories):
self.writer.write(" // ### Qt 7: Rename to Territory\n")
self.__enum('Country', territories, self.__territory, 'Territory')
def scripts(self, scripts):
self.__enum('Script', scripts, self.__script)
self.writer.write('\n')
# Implementation details
from enumdata import (language_aliases as __language,
territory_aliases as __territory,
script_aliases as __script)
def __enum(self, name, book, alias, suffix = None):
assert book
if suffix is None:
suffix = name
out, dupes = self.writer.write, self.__dupes
out(f' enum {name} : ushort {{\n')
for key, value in book.items():
member = value[0].replace('-', ' ')
if name == 'Script':
# Don't .capitalize() as some names are already camel-case (see enumdata.py):
member = ''.join(word[0].upper() + word[1:] for word in member.split())
if not member.endswith('Script'):
member += 'Script'
if member in dupes:
raise Error(f'The script name "{member}" is messy')
else:
member = ''.join(member.split())
member = member + suffix if member in dupes else member
out(f' {member} = {key},\n')
out('\n '
+ ',\n '.join(f'{k} = {v}' for k, v in sorted(alias.items()))
+ f',\n\n Last{suffix} = {member}')
# for "LastCountry = LastTerritory"
# ### Qt 7: Remove
if suffix != name:
out(f',\n Last{name} = Last{suffix}')
out('\n };\n')
def main(out, err):
# map { CLDR name: Qt file name }
calendars_map = {
'gregorian': 'roman',
'persian': 'jalali',
'islamic': 'hijri',
# 'hebrew': 'hebrew'
}
all_calendars = list(calendars_map.keys())
parser = argparse.ArgumentParser(
description='Generate C++ code from CLDR data in QLocaleXML form.',
formatter_class=argparse.ArgumentDefaultsHelpFormatter)
parser.add_argument('input_file', help='input XML file name',
metavar='input-file.xml')
parser.add_argument('qtbase_path', help='path to the root of the qtbase source tree')
parser.add_argument('--calendars', help='select calendars to emit data for',
nargs='+', metavar='CALENDAR',
choices=all_calendars, default=all_calendars)
args = parser.parse_args()
qlocalexml = args.input_file
qtsrcdir = Path(args.qtbase_path)
calendars = {cal: calendars_map[cal] for cal in args.calendars}
if not (qtsrcdir.is_dir()
and all(qtsrcdir.joinpath('src/corelib/text', leaf).is_file()
for leaf in ('qlocale_data_p.h', 'qlocale.h', 'qlocale.qdoc'))):
parser.error(f'Missing expected files under qtbase source root {qtsrcdir}')
reader = QLocaleXmlReader(qlocalexml)
locale_map = dict(reader.loadLocaleMap(calendars, err.write))
locale_keys = sorted(locale_map.keys(), key=LocaleKeySorter(reader.defaultMap()))
try:
with LocaleDataWriter(qtsrcdir.joinpath('src/corelib/text/qlocale_data_p.h'),
qtsrcdir, reader.cldrVersion) as writer:
writer.likelySubtags(reader.likelyMap())
writer.localeIndex(reader.languageIndices(tuple(k[0] for k in locale_map)))
writer.localeData(locale_map, locale_keys)
writer.writer.write('\n')
writer.languageNames(reader.languages)
writer.scriptNames(reader.scripts)
writer.territoryNames(reader.territories)
# TODO: merge the next three into the previous three
writer.languageCodes(reader.languages)
writer.scriptCodes(reader.scripts)
writer.territoryCodes(reader.territories)
except Exception as e:
err.write(f'\nError updating locale data: {e}\n')
return 1
# Generate calendar data
for calendar, stem in calendars.items():
try:
with CalendarDataWriter(
qtsrcdir.joinpath(f'src/corelib/time/q{stem}calendar_data_p.h'),
qtsrcdir, reader.cldrVersion) as writer:
writer.write(calendar, locale_map, locale_keys)
except Exception as e:
err.write(f'\nError updating {calendar} locale data: {e}\n')
# qlocale.h
try:
with LocaleHeaderWriter(qtsrcdir.joinpath('src/corelib/text/qlocale.h'),
qtsrcdir, reader.dupes) as writer:
writer.languages(reader.languages)
writer.scripts(reader.scripts)
writer.territories(reader.territories)
except Exception as e:
err.write(f'\nError updating qlocale.h: {e}\n')
# qlocale.qdoc
try:
with Transcriber(qtsrcdir.joinpath('src/corelib/text/qlocale.qdoc'), qtsrcdir) as qdoc:
DOCSTRING = " QLocale's data is based on Common Locale Data Repository "
for line in qdoc.reader:
if DOCSTRING in line:
qdoc.writer.write(f'{DOCSTRING}v{reader.cldrVersion}.\n')
else:
qdoc.writer.write(line)
except Exception as e:
err.write(f'\nError updating qlocale.h: {e}\n')
return 1
return 0
if __name__ == "__main__":
import sys
sys.exit(main(sys.stdout, sys.stderr))