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352 lines
14 KiB
Python
352 lines
14 KiB
Python
"""
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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 string import ascii_letters
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from typing import List, Optional
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# TODO: Add Ukrainian (KOI8-U)
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class Language:
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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__(
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self,
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name: Optional[str] = None,
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iso_code: Optional[str] = None,
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use_ascii: bool = True,
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charsets: Optional[List[str]] = None,
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alphabet: Optional[str] = None,
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wiki_start_pages: Optional[List[str]] = None,
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) -> None:
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super().__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) -> str:
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param_str = ", ".join(
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f"{k}={v!r}" for k, v in self.__dict__.items() if not k.startswith("_")
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)
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return f"{self.__class__.__name__}({param_str})"
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LANGUAGES = {
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"Arabic": Language(
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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", "CP720", "CP864"],
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alphabet="ءآأؤإئابةتثجحخدذرزسشصضطظعغػؼؽؾؿـفقكلمنهوىيًٌٍَُِّ",
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wiki_start_pages=["الصفحة_الرئيسية"],
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),
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"Belarusian": Language(
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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", "IBM866", "MacCyrillic"],
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alphabet="АБВГДЕЁЖЗІЙКЛМНОПРСТУЎФХЦЧШЫЬЭЮЯабвгдеёжзійклмнопрстуўфхцчшыьэюяʼ",
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wiki_start_pages=["Галоўная_старонка"],
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),
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"Bulgarian": Language(
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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", "IBM855"],
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alphabet="АБВГДЕЖЗИЙКЛМНОПРСТУФХЦЧШЩЪЬЮЯабвгдежзийклмнопрстуфхцчшщъьюя",
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wiki_start_pages=["Начална_страница"],
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),
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"Czech": Language(
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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="áčďéěíňóřšťúůýžÁČĎÉĚÍŇÓŘŠŤÚŮÝŽ",
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wiki_start_pages=["Hlavní_strana"],
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),
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"Danish": Language(
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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", "WINDOWS-1252", "MacRoman"],
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alphabet="æøåÆØÅ",
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wiki_start_pages=["Forside"],
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),
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"German": Language(
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name="German",
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iso_code="de",
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use_ascii=True,
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charsets=["ISO-8859-1", "ISO-8859-15", "WINDOWS-1252", "MacRoman"],
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alphabet="äöüßẞÄÖÜ",
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wiki_start_pages=["Wikipedia:Hauptseite"],
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),
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"Greek": Language(
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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="αβγδεζηθικλμνξοπρσςτυφχψωάέήίόύώΑΒΓΔΕΖΗΘΙΚΛΜΝΞΟΠΡΣΣΤΥΦΧΨΩΆΈΉΊΌΎΏ",
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wiki_start_pages=["Πύλη:Κύρια"],
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),
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"English": Language(
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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", "MacRoman"],
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wiki_start_pages=["Main_Page"],
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),
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"Esperanto": Language(
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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="abcĉdefgĝhĥijĵklmnoprsŝtuŭvzABCĈDEFGĜHĤIJĴKLMNOPRSŜTUŬVZ",
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wiki_start_pages=["Vikipedio:Ĉefpaĝo"],
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),
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"Spanish": Language(
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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", "WINDOWS-1252", "MacRoman"],
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alphabet="ñáéíóúüÑÁÉÍÓÚÜ",
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wiki_start_pages=["Wikipedia:Portada"],
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),
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"Estonian": Language(
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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", "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="ABDEGHIJKLMNOPRSTUVÕÄÖÜabdeghijklmnoprstuvõäöü",
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wiki_start_pages=["Esileht"],
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),
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"Finnish": Language(
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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", "WINDOWS-1252", "MacRoman"],
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alphabet="ÅÄÖŠŽåäöšž",
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wiki_start_pages=["Wikipedia:Etusivu"],
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),
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"French": Language(
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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", "WINDOWS-1252", "MacRoman"],
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alphabet="œàâçèéîïùûêŒÀÂÇÈÉÎÏÙÛÊ",
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wiki_start_pages=["Wikipédia:Accueil_principal", "Bœuf (animal)"],
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),
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"Hebrew": Language(
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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="אבגדהוזחטיךכלםמןנסעףפץצקרשתװױײ",
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wiki_start_pages=["עמוד_ראשי"],
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),
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"Croatian": Language(
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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="abcčćdđefghijklmnoprsštuvzžABCČĆDĐEFGHIJKLMNOPRSŠTUVZŽ",
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wiki_start_pages=["Glavna_stranica"],
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),
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"Hungarian": Language(
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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="abcdefghijklmnoprstuvzáéíóöőúüűABCDEFGHIJKLMNOPRSTUVZÁÉÍÓÖŐÚÜŰ",
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wiki_start_pages=["Kezdőlap"],
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),
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"Italian": Language(
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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", "WINDOWS-1252", "MacRoman"],
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alphabet="ÀÈÉÌÒÓÙàèéìòóù",
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wiki_start_pages=["Pagina_principale"],
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),
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"Lithuanian": Language(
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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", "ISO-8859-4"],
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# Q, W, and X not used at all
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alphabet="AĄBCČDEĘĖFGHIĮYJKLMNOPRSŠTUŲŪVZŽaąbcčdeęėfghiįyjklmnoprsštuųūvzž",
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wiki_start_pages=["Pagrindinis_puslapis"],
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),
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"Latvian": Language(
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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", "ISO-8859-4"],
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# Q, W, X, Y are only for loanwords
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alphabet="AĀBCČDEĒFGĢHIĪJKĶLĻMNŅOPRSŠTUŪVZŽaābcčdeēfgģhiījkķlļmnņoprsštuūvzž",
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wiki_start_pages=["Sākumlapa"],
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),
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"Macedonian": Language(
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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", "MacCyrillic", "IBM855"],
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alphabet="АБВГДЃЕЖЗЅИЈКЛЉМНЊОПРСТЌУФХЦЧЏШабвгдѓежзѕијклљмнњопрстќуфхцчџш",
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wiki_start_pages=["Главна_страница"],
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),
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"Dutch": Language(
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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", "MacRoman"],
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wiki_start_pages=["Hoofdpagina"],
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),
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"Polish": Language(
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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="AĄBCĆDEĘFGHIJKLŁMNŃOÓPRSŚTUWYZŹŻaąbcćdeęfghijklłmnńoóprsśtuwyzźż",
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wiki_start_pages=["Wikipedia:Strona_główna"],
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),
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"Portuguese": Language(
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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", "WINDOWS-1252", "MacRoman"],
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alphabet="ÁÂÃÀÇÉÊÍÓÔÕÚáâãàçéêíóôõú",
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wiki_start_pages=["Wikipédia:Página_principal"],
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),
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"Romanian": Language(
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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="ăâîșțĂÂÎȘȚ",
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wiki_start_pages=["Pagina_principală"],
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),
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"Russian": Language(
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name="Russian",
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iso_code="ru",
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use_ascii=False,
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charsets=[
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"ISO-8859-5",
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"WINDOWS-1251",
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"KOI8-R",
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"MacCyrillic",
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"IBM866",
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"IBM855",
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],
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alphabet="абвгдеёжзийклмнопрстуфхцчшщъыьэюяАБВГДЕЁЖЗИЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯ",
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wiki_start_pages=["Заглавная_страница"],
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),
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"Slovak": Language(
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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="áäčďéíĺľňóôŕšťúýžÁÄČĎÉÍĹĽŇÓÔŔŠŤÚÝŽ",
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wiki_start_pages=["Hlavná_stránka"],
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),
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"Slovene": Language(
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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="abcčdefghijklmnoprsštuvzžABCČDEFGHIJKLMNOPRSŠTUVZŽ",
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wiki_start_pages=["Glavna_stran"],
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),
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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(
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name="Serbian",
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iso_code="sr",
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alphabet="АБВГДЂЕЖЗИЈКЛЉМНЊОПРСТЋУФХЦЧЏШабвгдђежзијклљмнњопрстћуфхцчџш",
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charsets=["ISO-8859-5", "WINDOWS-1251", "MacCyrillic", "IBM855"],
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wiki_start_pages=["Главна_страна"],
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),
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"Thai": Language(
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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="กขฃคฅฆงจฉชซฌญฎฏฐฑฒณดตถทธนบปผฝพฟภมยรฤลฦวศษสหฬอฮฯะัาำิีึืฺุู฿เแโใไๅๆ็่้๊๋์ํ๎๏๐๑๒๓๔๕๖๗๘๙๚๛",
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wiki_start_pages=["หน้าหลัก"],
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),
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"Turkish": Language(
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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", "WINDOWS-1254"],
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alphabet="abcçdefgğhıijklmnoöprsştuüvyzâîûABCÇDEFGĞHIİJKLMNOÖPRSŞTUÜVYZÂÎÛ",
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wiki_start_pages=["Ana_Sayfa"],
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),
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"Vietnamese": Language(
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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="aăâbcdđeêghiklmnoôơpqrstuưvxyAĂÂBCDĐEÊGHIKLMNOÔƠPQRSTUƯVXY",
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wiki_start_pages=["Chữ_Quốc_ngữ"],
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),
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}
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