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import os
def messages_path():
"""
Determine the path to the 'messages' directory as best possible.
"""
module_path = os.path.abspath(__file__)
locale_path = os.path.join(os.path.dirname(module_path), "locale")
if not os.path.exists(locale_path): # pragma: no cover
locale_path = "/usr/share/locale"
return locale_path
def get_builtin_gnu_translations(languages=None):
"""
Get a gettext.GNUTranslations object pointing at the
included translation files.
:param languages:
A list of languages to try, in order. If omitted or None, then
gettext will try to use locale information from the environment.
"""
import gettext
return gettext.translation("wtforms", messages_path(), languages)
def get_translations(languages=None, getter=get_builtin_gnu_translations):
"""
Get a WTForms translation object which wraps a low-level translations object.
:param languages:
A sequence of languages to try, in order.
:param getter:
A single-argument callable which returns a low-level translations object.
"""
return getter(languages)
class DefaultTranslations:
"""
A WTForms translations object to wrap translations objects which use
ugettext/ungettext.
"""
def __init__(self, translations):
self.translations = translations
def gettext(self, string):
return self.translations.ugettext(string)
def ngettext(self, singular, plural, n):
return self.translations.ungettext(singular, plural, n)
class DummyTranslations:
"""
A translations object which simply returns unmodified strings.
This is typically used when translations are disabled or if no valid
translations provider can be found.
"""
def gettext(self, string):
return string
def ngettext(self, singular, plural, n):
if n == 1:
return singular
return plural