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79 lines
2.2 KiB
Python
79 lines
2.2 KiB
Python
from .char_classes import (
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ALPHA,
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ALPHA_LOWER,
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ALPHA_UPPER,
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COMBINING_DIACRITICS,
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CONCAT_QUOTES,
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CURRENCY,
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HYPHENS,
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LIST_CURRENCY,
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LIST_ELLIPSES,
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LIST_ICONS,
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LIST_PUNCT,
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LIST_QUOTES,
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PUNCT,
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UNITS,
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)
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TOKENIZER_PREFIXES = (
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["§", "%", "=", "—", "–", r"\+(?![0-9])"]
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+ LIST_PUNCT
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+ LIST_ELLIPSES
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+ LIST_QUOTES
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+ LIST_CURRENCY
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+ LIST_ICONS
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)
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TOKENIZER_SUFFIXES = (
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LIST_PUNCT
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+ LIST_ELLIPSES
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+ LIST_QUOTES
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+ LIST_ICONS
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+ ["'s", "'S", "’s", "’S", "—", "–"]
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+ [
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r"(?<=[0-9])\+",
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r"(?<=°[FfCcKk])\.",
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r"(?<=[0-9])(?:{c})".format(c=CURRENCY),
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r"(?<=[0-9])(?:{u})".format(u=UNITS),
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r"(?<=[0-9{al}{e}{p}(?:{q})])\.".format(
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al=ALPHA_LOWER, e=r"%²\-\+", q=CONCAT_QUOTES, p=PUNCT
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),
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r"(?<=[{au}][{au}])\.".format(au=ALPHA_UPPER),
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]
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)
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TOKENIZER_INFIXES = (
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LIST_ELLIPSES
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+ LIST_ICONS
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+ [
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r"(?<=[0-9])[+\-\*^](?=[0-9-])",
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r"(?<=[{al}{q}])\.(?=[{au}{q}])".format(
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al=ALPHA_LOWER, au=ALPHA_UPPER, q=CONCAT_QUOTES
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),
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r"(?<=[{a}]),(?=[{a}])".format(a=ALPHA),
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r"(?<=[{a}])(?:{h})(?=[{a}])".format(a=ALPHA, h=HYPHENS),
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r"(?<=[{a}0-9])[:<>=/](?=[{a}])".format(a=ALPHA),
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]
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)
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# Some languages e.g. written with the Cyrillic alphabet permit the use of diacritics
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# to mark stressed syllables in words where stress is distinctive. Such languages
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# should use the COMBINING_DIACRITICS... suffix and infix regex lists in
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# place of the standard ones.
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COMBINING_DIACRITICS_TOKENIZER_SUFFIXES = list(TOKENIZER_SUFFIXES) + [
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r"(?<=[{a}][{d}])\.".format(a=ALPHA, d=COMBINING_DIACRITICS),
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]
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COMBINING_DIACRITICS_TOKENIZER_INFIXES = list(TOKENIZER_INFIXES) + [
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r"(?<=[{al}][{d}])\.(?=[{au}{q}])".format(
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al=ALPHA_LOWER, au=ALPHA_UPPER, q=CONCAT_QUOTES, d=COMBINING_DIACRITICS
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),
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r"(?<=[{a}][{d}]),(?=[{a}])".format(a=ALPHA, d=COMBINING_DIACRITICS),
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r"(?<=[{a}][{d}])(?:{h})(?=[{a}])".format(
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a=ALPHA, d=COMBINING_DIACRITICS, h=HYPHENS
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),
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r"(?<=[{a}][{d}])[:<>=/](?=[{a}])".format(a=ALPHA, d=COMBINING_DIACRITICS),
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]
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