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310 lines
19 KiB
Python
310 lines
19 KiB
Python
#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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"""
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Metadata about languages used by our model training code for our
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SingleByteCharSetProbers. Could be used for other things in the future.
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This code is based on the language metadata from the uchardet project.
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"""
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from __future__ import absolute_import, print_function
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from string import ascii_letters
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# TODO: Add Ukranian (KOI8-U)
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class Language(object):
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"""Metadata about a language useful for training models
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:ivar name: The human name for the language, in English.
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:type name: str
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:ivar iso_code: 2-letter ISO 639-1 if possible, 3-letter ISO code otherwise,
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or use another catalog as a last resort.
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:type iso_code: str
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:ivar use_ascii: Whether or not ASCII letters should be included in trained
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models.
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:type use_ascii: bool
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:ivar charsets: The charsets we want to support and create data for.
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:type charsets: list of str
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:ivar alphabet: The characters in the language's alphabet. If `use_ascii` is
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`True`, you only need to add those not in the ASCII set.
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:type alphabet: str
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:ivar wiki_start_pages: The Wikipedia pages to start from if we're crawling
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Wikipedia for training data.
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:type wiki_start_pages: list of str
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"""
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def __init__(self, name=None, iso_code=None, use_ascii=True, charsets=None,
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alphabet=None, wiki_start_pages=None):
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super(Language, self).__init__()
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self.name = name
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self.iso_code = iso_code
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self.use_ascii = use_ascii
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self.charsets = charsets
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if self.use_ascii:
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if alphabet:
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alphabet += ascii_letters
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else:
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alphabet = ascii_letters
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elif not alphabet:
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raise ValueError('Must supply alphabet if use_ascii is False')
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self.alphabet = ''.join(sorted(set(alphabet))) if alphabet else None
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self.wiki_start_pages = wiki_start_pages
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def __repr__(self):
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return '{}({})'.format(self.__class__.__name__,
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', '.join('{}={!r}'.format(k, v)
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for k, v in self.__dict__.items()
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if not k.startswith('_')))
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LANGUAGES = {'Arabic': Language(name='Arabic',
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iso_code='ar',
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use_ascii=False,
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# We only support encodings that use isolated
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# forms, because the current recommendation is
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# that the rendering system handles presentation
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# forms. This means we purposefully skip IBM864.
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charsets=['ISO-8859-6', 'WINDOWS-1256',
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'CP720', 'CP864'],
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alphabet=u'ءآأؤإئابةتثجحخدذرزسشصضطظعغػؼؽؾؿـفقكلمنهوىيًٌٍَُِّ',
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wiki_start_pages=[u'الصفحة_الرئيسية']),
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'Belarusian': Language(name='Belarusian',
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iso_code='be',
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use_ascii=False,
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charsets=['ISO-8859-5', 'WINDOWS-1251',
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'IBM866', 'MacCyrillic'],
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alphabet=(u'АБВГДЕЁЖЗІЙКЛМНОПРСТУЎФХЦЧШЫЬЭЮЯ'
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u'абвгдеёжзійклмнопрстуўфхцчшыьэюяʼ'),
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wiki_start_pages=[u'Галоўная_старонка']),
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'Bulgarian': Language(name='Bulgarian',
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iso_code='bg',
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use_ascii=False,
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charsets=['ISO-8859-5', 'WINDOWS-1251',
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'IBM855'],
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alphabet=(u'АБВГДЕЖЗИЙКЛМНОПРСТУФХЦЧШЩЪЬЮЯ'
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u'абвгдежзийклмнопрстуфхцчшщъьюя'),
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wiki_start_pages=[u'Начална_страница']),
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'Czech': Language(name='Czech',
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iso_code='cz',
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use_ascii=True,
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charsets=['ISO-8859-2', 'WINDOWS-1250'],
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alphabet=u'áčďéěíňóřšťúůýžÁČĎÉĚÍŇÓŘŠŤÚŮÝŽ',
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wiki_start_pages=[u'Hlavní_strana']),
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'Danish': Language(name='Danish',
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iso_code='da',
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use_ascii=True,
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charsets=['ISO-8859-1', 'ISO-8859-15',
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'WINDOWS-1252'],
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alphabet=u'æøåÆØÅ',
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wiki_start_pages=[u'Forside']),
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'German': Language(name='German',
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iso_code='de',
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use_ascii=True,
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charsets=['ISO-8859-1', 'WINDOWS-1252'],
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alphabet=u'äöüßÄÖÜ',
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wiki_start_pages=[u'Wikipedia:Hauptseite']),
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'Greek': Language(name='Greek',
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iso_code='el',
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use_ascii=False,
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charsets=['ISO-8859-7', 'WINDOWS-1253'],
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alphabet=(u'αβγδεζηθικλμνξοπρσςτυφχψωάέήίόύώ'
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u'ΑΒΓΔΕΖΗΘΙΚΛΜΝΞΟΠΡΣΣΤΥΦΧΨΩΆΈΉΊΌΎΏ'),
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wiki_start_pages=[u'Πύλη:Κύρια']),
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'English': Language(name='English',
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iso_code='en',
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use_ascii=True,
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charsets=['ISO-8859-1', 'WINDOWS-1252'],
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wiki_start_pages=[u'Main_Page']),
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'Esperanto': Language(name='Esperanto',
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iso_code='eo',
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# Q, W, X, and Y not used at all
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use_ascii=False,
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charsets=['ISO-8859-3'],
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alphabet=(u'abcĉdefgĝhĥijĵklmnoprsŝtuŭvz'
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u'ABCĈDEFGĜHĤIJĴKLMNOPRSŜTUŬVZ'),
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wiki_start_pages=[u'Vikipedio:Ĉefpaĝo']),
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'Spanish': Language(name='Spanish',
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iso_code='es',
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use_ascii=True,
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charsets=['ISO-8859-1', 'ISO-8859-15',
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'WINDOWS-1252'],
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alphabet=u'ñáéíóúüÑÁÉÍÓÚÜ',
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wiki_start_pages=[u'Wikipedia:Portada']),
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'Estonian': Language(name='Estonian',
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iso_code='et',
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use_ascii=False,
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charsets=['ISO-8859-4', 'ISO-8859-13',
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'WINDOWS-1257'],
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# C, F, Š, Q, W, X, Y, Z, Ž are only for
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# loanwords
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alphabet=(u'ABDEGHIJKLMNOPRSTUVÕÄÖÜ'
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u'abdeghijklmnoprstuvõäöü'),
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wiki_start_pages=[u'Esileht']),
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'Finnish': Language(name='Finnish',
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iso_code='fi',
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use_ascii=True,
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charsets=['ISO-8859-1', 'ISO-8859-15',
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'WINDOWS-1252'],
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alphabet=u'ÅÄÖŠŽåäöšž',
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wiki_start_pages=[u'Wikipedia:Etusivu']),
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'French': Language(name='French',
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iso_code='fr',
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use_ascii=True,
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charsets=['ISO-8859-1', 'ISO-8859-15',
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'WINDOWS-1252'],
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alphabet=u'œàâçèéîïùûêŒÀÂÇÈÉÎÏÙÛÊ',
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wiki_start_pages=[u'Wikipédia:Accueil_principal',
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u'Bœuf (animal)']),
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'Hebrew': Language(name='Hebrew',
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iso_code='he',
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use_ascii=False,
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charsets=['ISO-8859-8', 'WINDOWS-1255'],
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alphabet=u'אבגדהוזחטיךכלםמןנסעףפץצקרשתװױײ',
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wiki_start_pages=[u'עמוד_ראשי']),
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'Croatian': Language(name='Croatian',
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iso_code='hr',
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# Q, W, X, Y are only used for foreign words.
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use_ascii=False,
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charsets=['ISO-8859-2', 'WINDOWS-1250'],
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alphabet=(u'abcčćdđefghijklmnoprsštuvzž'
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u'ABCČĆDĐEFGHIJKLMNOPRSŠTUVZŽ'),
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wiki_start_pages=[u'Glavna_stranica']),
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'Hungarian': Language(name='Hungarian',
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iso_code='hu',
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# Q, W, X, Y are only used for foreign words.
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use_ascii=False,
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charsets=['ISO-8859-2', 'WINDOWS-1250'],
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alphabet=(u'abcdefghijklmnoprstuvzáéíóöőúüű'
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u'ABCDEFGHIJKLMNOPRSTUVZÁÉÍÓÖŐÚÜŰ'),
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wiki_start_pages=[u'Kezdőlap']),
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'Italian': Language(name='Italian',
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iso_code='it',
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use_ascii=True,
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charsets=['ISO-8859-1', 'ISO-8859-15',
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'WINDOWS-1252'],
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alphabet=u'ÀÈÉÌÒÓÙàèéìòóù',
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wiki_start_pages=[u'Pagina_principale']),
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'Lithuanian': Language(name='Lithuanian',
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iso_code='lt',
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use_ascii=False,
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charsets=['ISO-8859-13', 'WINDOWS-1257',
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'ISO-8859-4'],
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# Q, W, and X not used at all
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alphabet=(u'AĄBCČDEĘĖFGHIĮYJKLMNOPRSŠTUŲŪVZŽ'
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u'aąbcčdeęėfghiįyjklmnoprsštuųūvzž'),
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wiki_start_pages=[u'Pagrindinis_puslapis']),
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'Latvian': Language(name='Latvian',
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iso_code='lv',
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use_ascii=False,
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charsets=['ISO-8859-13', 'WINDOWS-1257',
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'ISO-8859-4'],
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# Q, W, X, Y are only for loanwords
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alphabet=(u'AĀBCČDEĒFGĢHIĪJKĶLĻMNŅOPRSŠTUŪVZŽ'
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u'aābcčdeēfgģhiījkķlļmnņoprsštuūvzž'),
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wiki_start_pages=[u'Sākumlapa']),
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'Macedonian': Language(name='Macedonian',
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iso_code='mk',
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use_ascii=False,
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charsets=['ISO-8859-5', 'WINDOWS-1251',
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'MacCyrillic', 'IBM855'],
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alphabet=(u'АБВГДЃЕЖЗЅИЈКЛЉМНЊОПРСТЌУФХЦЧЏШ'
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u'абвгдѓежзѕијклљмнњопрстќуфхцчџш'),
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wiki_start_pages=[u'Главна_страница']),
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'Dutch': Language(name='Dutch',
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iso_code='nl',
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use_ascii=True,
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charsets=['ISO-8859-1', 'WINDOWS-1252'],
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wiki_start_pages=[u'Hoofdpagina']),
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'Polish': Language(name='Polish',
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iso_code='pl',
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# Q and X are only used for foreign words.
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use_ascii=False,
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charsets=['ISO-8859-2', 'WINDOWS-1250'],
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alphabet=(u'AĄBCĆDEĘFGHIJKLŁMNŃOÓPRSŚTUWYZŹŻ'
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u'aąbcćdeęfghijklłmnńoóprsśtuwyzźż'),
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wiki_start_pages=[u'Wikipedia:Strona_główna']),
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'Portuguese': Language(name='Portuguese',
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iso_code='pt',
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use_ascii=True,
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charsets=['ISO-8859-1', 'ISO-8859-15',
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'WINDOWS-1252'],
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alphabet=u'ÁÂÃÀÇÉÊÍÓÔÕÚáâãàçéêíóôõú',
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wiki_start_pages=[u'Wikipédia:Página_principal']),
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'Romanian': Language(name='Romanian',
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iso_code='ro',
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use_ascii=True,
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charsets=['ISO-8859-2', 'WINDOWS-1250'],
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alphabet=u'ăâîșțĂÂÎȘȚ',
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wiki_start_pages=[u'Pagina_principală']),
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'Russian': Language(name='Russian',
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iso_code='ru',
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use_ascii=False,
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charsets=['ISO-8859-5', 'WINDOWS-1251',
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'KOI8-R', 'MacCyrillic', 'IBM866',
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'IBM855'],
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alphabet=(u'абвгдеёжзийклмнопрстуфхцчшщъыьэюя'
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u'АБВГДЕЁЖЗИЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯ'),
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wiki_start_pages=[u'Заглавная_страница']),
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'Slovak': Language(name='Slovak',
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iso_code='sk',
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use_ascii=True,
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charsets=['ISO-8859-2', 'WINDOWS-1250'],
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alphabet=u'áäčďéíĺľňóôŕšťúýžÁÄČĎÉÍĹĽŇÓÔŔŠŤÚÝŽ',
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wiki_start_pages=[u'Hlavná_stránka']),
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'Slovene': Language(name='Slovene',
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iso_code='sl',
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# Q, W, X, Y are only used for foreign words.
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use_ascii=False,
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charsets=['ISO-8859-2', 'WINDOWS-1250'],
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alphabet=(u'abcčdefghijklmnoprsštuvzž'
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u'ABCČDEFGHIJKLMNOPRSŠTUVZŽ'),
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wiki_start_pages=[u'Glavna_stran']),
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# Serbian can be written in both Latin and Cyrillic, but there's no
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# simple way to get the Latin alphabet pages from Wikipedia through
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# the API, so for now we just support Cyrillic.
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'Serbian': Language(name='Serbian',
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iso_code='sr',
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alphabet=(u'АБВГДЂЕЖЗИЈКЛЉМНЊОПРСТЋУФХЦЧЏШ'
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u'абвгдђежзијклљмнњопрстћуфхцчџш'),
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charsets=['ISO-8859-5', 'WINDOWS-1251',
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'MacCyrillic', 'IBM855'],
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wiki_start_pages=[u'Главна_страна']),
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'Thai': Language(name='Thai',
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iso_code='th',
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use_ascii=False,
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charsets=['ISO-8859-11', 'TIS-620', 'CP874'],
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alphabet=u'กขฃคฅฆงจฉชซฌญฎฏฐฑฒณดตถทธนบปผฝพฟภมยรฤลฦวศษสหฬอฮฯะัาำิีึืฺุู฿เแโใไๅๆ็่้๊๋์ํ๎๏๐๑๒๓๔๕๖๗๘๙๚๛',
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wiki_start_pages=[u'หน้าหลัก']),
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'Turkish': Language(name='Turkish',
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iso_code='tr',
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# Q, W, and X are not used by Turkish
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use_ascii=False,
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charsets=['ISO-8859-3', 'ISO-8859-9',
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'WINDOWS-1254'],
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alphabet=(u'abcçdefgğhıijklmnoöprsştuüvyzâîû'
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u'ABCÇDEFGĞHIİJKLMNOÖPRSŞTUÜVYZÂÎÛ'),
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wiki_start_pages=[u'Ana_Sayfa']),
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'Vietnamese': Language(name='Vietnamese',
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iso_code='vi',
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use_ascii=False,
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# Windows-1258 is the only common 8-bit
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# Vietnamese encoding supported by Python.
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# From Wikipedia:
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# For systems that lack support for Unicode,
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# dozens of 8-bit Vietnamese code pages are
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# available.[1] The most common are VISCII
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# (TCVN 5712:1993), VPS, and Windows-1258.[3]
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# Where ASCII is required, such as when
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# ensuring readability in plain text e-mail,
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# Vietnamese letters are often encoded
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# according to Vietnamese Quoted-Readable
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# (VIQR) or VSCII Mnemonic (VSCII-MNEM),[4]
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# though usage of either variable-width
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# scheme has declined dramatically following
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# the adoption of Unicode on the World Wide
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# Web.
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charsets=['WINDOWS-1258'],
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alphabet=(u'aăâbcdđeêghiklmnoôơpqrstuưvxy'
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u'AĂÂBCDĐEÊGHIKLMNOÔƠPQRSTUƯVXY'),
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wiki_start_pages=[u'Chữ_Quốc_ngữ']),
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}
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