# -*- coding: UTF-8 -*-

from plone.i18n.normalizer.interfaces import INormalizer
from zope.interface import implements
from plone.i18n.normalizer.base import mapUnicode

# Bulgarian character mapping
mapping = {1040: 'A', 1041: 'B', 1042: 'V', 1043: 'G', 1044: 'D', 1045: 'E',
           1046: 'ZH', 1047: 'Z', 1048: 'I', 1049: 'Y', 1050: 'K', 1051: 'L',
           1052: 'M', 1053: 'N', 1054: 'O', 1055: 'P', 1056: 'R', 1057: 'S',
           1058: 'T', 1059: 'U', 1060: 'F', 1061: 'H', 1062: 'TS', 1063: 'CH',
           1064: 'SH', 1065: 'SHT', 1066: 'A', 1068: 'Y', 1070: 'YU',
           1071: 'YA', 1072: 'a', 1073: 'b', 1074: 'v', 1075: 'g', 1076: 'd',
           1077: 'e', 1078: 'zh', 1079: 'z', 1080: 'i', 1081: 'y', 1082: 'k',
           1083: 'l', 1084: 'm', 1085: 'n', 1086: 'o', 1087: 'p', 1088: 'r',
           1089: 's', 1090: 't', 1091: 'u', 1092: 'f', 1093: 'h', 1094: 'ts',
           1095: 'ch', 1096: 'sh', 1097: 'sht', 1098: 'a', 1100: 'y',
           1102: 'yu', 1103: 'ya'}

class Normalizer(object):
    """
    This normalizer can normalize any unicode string and returns a version
    that only contains of ASCII characters.

    Let's make sure that this implementation actually fulfills the API.

      >>> from zope.interface.verify import verifyClass
      >>> verifyClass(INormalizer, Normalizer)
      True

      >>> norm = Normalizer()
      >>> norm.normalize(u'\u0429')
      'SHT'
    """
    implements(INormalizer)

    def normalize(self, text, locale=None, max_length=None):
        """
        Returns a normalized text. text has to be a unicode string.
        """
        return mapUnicode(text, mapping=mapping)

normalizer = Normalizer()
