#
# Copyright 2007 Zuza Software Foundation
#
# This file is part of translate.
#
# translate is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# translate is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, see <https://www.gnu.org/licenses/>.

"""
This module represents the Vietnamese language.

.. seealso:: :wp:`Vietnamese_language`
"""

from translate.lang import common, fr


class vi(common.Common):
    """This class represents Vietnamese."""

    # Vietnamese uses similar rules for spacing two-part punctuation marks as
    # French, but does not use a space before '?'.
    puncdict = {}
    for c in ":;!#":
        puncdict[c] = f" {c}"

    @classmethod
    def punctranslate(cls, text):
        """
        Implement some extra features for quotation marks.

        Known shortcomings:
            - % and $ are not touched yet for fear of variables
            - Double spaces might be introduced
        """
        text = super().punctranslate(text)
        return fr.guillemets(text)

    mozilla_nplurals = 2
    mozilla_pluralequation = "n!=1 ? 1 : 0"
