#!/usr/bin/env python
# -*- coding: utf-8 -*-
#
# 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 2 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 <http://www.gnu.org/licenses/>.

"""This module represents the Chinese language (Both tradisional and simplified).

.. seealso:: http://en.wikipedia.org/wiki/Chinese_language
"""

import re

from translate.lang import common


class zh(common.Common):
    """This class represents Chinese."""

    listseperator = u"、"

    sentenceend = u"。！？…"

    # Compared to common.py, we make the space after the sentence ending
    # optional and don't demand an uppercase letter to follow.
    sentencere = re.compile(r"""(?s) # make . also match newlines
                            .*?      # any text, but match non-greedy
                            [%s]     # the puntuation for sentence ending
                            \s*      # the optional space after the puntuation
                            """ % sentenceend, re.VERBOSE)

    # The following transformation rules should be mostly useful for all types
    # of Chinese. The comma (,) is not handled here, since it maps to two
    # different characters, depending on context.
    # If comma is used as seperation of sentence, it should be converted to a
    # fullwidth comma ("，"). If comma is used as seperation of list items
    # like "apple, orange, grape, .....", "、" is used.
    puncdict = {
        u". ": u"。",
        u"; ": u"；",
        u": ": u"：",
        u"! ": u"！",
        u"? ": u"？",
        u".\n": u"。\n",
        u";\n": u"；\n",
        u":\n": u"：\n",
        u"!\n": u"！\n",
        u"?\n": u"？",
        u"% ": u"%",
    }

    def length_difference(cls, length):
        return 10 - length / 2
    length_difference = classmethod(length_difference)

    ignoretests = ["startcaps", "simplecaps"]
