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import gettext as _gettext |
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import sys |
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import threading |
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if sys.version_info >= (3, 9): |
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from collections.abc import Callable |
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else: |
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from typing import Callable |
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from pathlib import Path |
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from typing import Union |
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from lazy_string import LazyString |
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from .core import get_language |
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from .helpers import to_locale |
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from ._utils import export |
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StringOrPath = Union[str, Path] |
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MaybeLazyInteger = Union[int, Callable[..., int]] |
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@export |
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class NotThreadSafeTranslations: |
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def __init__(self, domain: str, locale_dir_path: StringOrPath): |
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self._domain = domain |
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self._locale_dir_path = str(locale_dir_path) |
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self._translations = { |
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None: _gettext.NullTranslations(), |
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} |
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def gettext(self, message: str) -> str: |
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return self._get_translation().gettext(message) |
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def gettext_lazy(self, message: str) -> LazyString: |
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return LazyString( |
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func=self.gettext, |
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message=message, |
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) |
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def ngettext(self, singular: str, plural: str, n: MaybeLazyInteger) -> str: |
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if callable(n): |
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n = n() |
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return self._get_translation().ngettext(singular, plural, n) |
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def ngettext_lazy(self, singular: str, plural: str, n: MaybeLazyInteger) -> LazyString: |
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return LazyString( |
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func=self.ngettext, |
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singular=singular, |
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plural=plural, |
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n=n, |
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) |
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def pgettext(self, context: str, message: str) -> str: |
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return self._get_translation().pgettext(context, message) |
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def pgettext_lazy(self, context: str, message: str) -> LazyString: |
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return LazyString( |
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func=self.pgettext, |
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context=context, |
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message=message, |
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) |
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def npgettext(self, context: str, singular: str, plural: str, n: MaybeLazyInteger) -> str: |
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if callable(n): |
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n = n() |
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return self._get_translation().npgettext(context, singular, plural, n) |
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def npgettext_lazy(self, context: str, singular: str, plural: str, n: MaybeLazyInteger) -> LazyString: |
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return LazyString( |
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func=self.npgettext, |
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context=context, |
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singular=singular, |
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plural=plural, |
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n=n, |
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) |
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def _get_translation(self) -> _gettext.NullTranslations: |
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language = get_language() |
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translation = self._translations.get(language) |
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if not translation: |
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locale = to_locale(language) |
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translation = _gettext.translation( |
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domain=self._domain, |
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localedir=self._locale_dir_path, |
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languages=[locale, ], |
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fallback=True, |
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) |
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self._translations[language] = translation |
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return translation |
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@export |
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class Translations(NotThreadSafeTranslations): |
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def __init__(self, domain: str, locale_dir_path: StringOrPath): |
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super().__init__(domain=domain, locale_dir_path=locale_dir_path) |
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self._lock = threading.RLock() |
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def gettext(self, message: str) -> str: |
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with self._lock: |
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return super().gettext(message=message) |
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def ngettext(self, singular: str, plural: str, n: MaybeLazyInteger) -> str: |
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with self._lock: |
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return super().ngettext(singular=singular, plural=plural, n=n) |
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def pgettext(self, context: str, message: str) -> str: |
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with self._lock: |
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return super().pgettext(context=context, message=message) |
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def npgettext(self, context: str, singular: str, plural: str, n: MaybeLazyInteger) -> str: |
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with self._lock: |
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return super().npgettext(context=context, singular=singular, plural=plural, n=n) |
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oblalex /
verboselib
