spaCy/spacy/lang/char_classes.py

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# coding: utf8
from __future__ import unicode_literals
import regex as re
re.DEFAULT_VERSION = re.VERSION1
merge_char_classes = lambda classes: "[{}]".format("||".join(classes))
split_chars = lambda char: list(char.strip().split(" "))
merge_chars = lambda char: char.strip().replace(" ", "|")
_bengali = r"[\p{L}&&\p{Bengali}]"
_hebrew = r"[\p{L}&&\p{Hebrew}]"
_latin_lower = r"[\p{Ll}&&\p{Latin}]"
_latin_upper = r"[\p{Lu}&&\p{Latin}]"
_latin = r"[[\p{Ll}||\p{Lu}]&&\p{Latin}]"
_persian = r"[\p{L}&&\p{Arabic}]"
_russian_lower = r"[ёа-я]"
_russian_upper = r"[ЁА-Я]"
_sinhala = r"[\p{L}&&\p{Sinhala}]"
_tatar_lower = r"[әөүҗңһ]"
_tatar_upper = r"[ӘӨҮҖҢҺ]"
_greek_lower = r"[α-ωάέίόώήύ]"
_greek_upper = r"[Α-ΩΆΈΊΌΏΉΎ]"
_upper = [_latin_upper, _russian_upper, _tatar_upper, _greek_upper]
_lower = [_latin_lower, _russian_lower, _tatar_lower, _greek_lower]
_uncased = [_bengali, _hebrew, _persian, _sinhala]
ALPHA = merge_char_classes(_upper + _lower + _uncased)
ALPHA_LOWER = merge_char_classes(_lower + _uncased)
ALPHA_UPPER = merge_char_classes(_upper + _uncased)
_units = (
"km km² km³ m m² m³ dm dm² dm³ cm cm² cm³ mm mm² mm³ ha µm nm yd in ft "
"kg g mg µg t lb oz m/s km/h kmh mph hPa Pa mbar mb MB kb KB gb GB tb "
"TB T G M K % км км² км³ м м² м³ дм дм² дм³ см см² см³ мм мм² мм³ нм "
"кг г мг м/с км/ч кПа Па мбар Кб КБ кб Мб МБ мб Гб ГБ гб Тб ТБ тб"
"كم كم² كم³ م م² م³ سم سم² سم³ مم مم² مم³ كم غرام جرام جم كغ ملغ كوب اكواب"
)
_currency = r"\$ £ € ¥ ฿ US\$ C\$ A\$ ₽ ﷼"
# These expressions contain various unicode variations, including characters
# used in Chinese (see #1333, #1340, #1351) unless there are cross-language
# conflicts, spaCy's base tokenizer should handle all of those by default
_punct = (
r"… …… , : ; \! \? ¿ ؟ ¡ \( \) \[ \] \{ \} < > _ # \* & 。 · । ، ؛ ٪"
)
_quotes = r'\' \'\' " ” “ `` ` ´ , „ » « 「 」 『 』 【 】 《 》 〈 〉'
_hyphens = "- — -- --- —— ~"
# Various symbols like dingbats, but also emoji
# Details: https://www.compart.com/en/unicode/category/So
_other_symbols = r"[\p{So}]"
UNITS = merge_chars(_units)
CURRENCY = merge_chars(_currency)
QUOTES = merge_chars(_quotes)
PUNCT = merge_chars(_punct)
HYPHENS = merge_chars(_hyphens)
ICONS = _other_symbols
LIST_UNITS = split_chars(_units)
LIST_CURRENCY = split_chars(_currency)
LIST_QUOTES = split_chars(_quotes)
LIST_PUNCT = split_chars(_punct)
LIST_HYPHENS = split_chars(_hyphens)
LIST_ELLIPSES = [r"\.\.+", ""]
LIST_ICONS = [_other_symbols]