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# unicode.py import sys from itertools import filterfalse from typing import List, Tuple, Union class _lazyclassproperty: def __init__(self, fn): self.fn = fn self.__doc__ = fn.__doc__ self.__name__ = fn.__name__ def __get__(self, obj, cls): if cls is None: cls = type(obj) if not hasattr(cls, "_intern") or any( cls._intern is getattr(superclass, "_intern", []) for superclass in cls.__mro__[1:] ): cls._intern = {} attrname = self.fn.__name__ if attrname not in cls._intern: cls._intern[attrname] = self.fn(cls) return cls._intern[attrname] UnicodeRangeList = List[Union[Tuple[int, int], Tuple[int]]] class unicode_set: """ A set of Unicode characters, for language-specific strings for ``alphas``, ``nums``, ``alphanums``, and ``printables``. A unicode_set is defined by a list of ranges in the Unicode character set, in a class attribute ``_ranges``. Ranges can be specified using 2-tuples or a 1-tuple, such as:: _ranges = [ (0x0020, 0x007e), (0x00a0, 0x00ff), (0x0100,), ] Ranges are left- and right-inclusive. A 1-tuple of (x,) is treated as (x, x). A unicode set can also be defined using multiple inheritance of other unicode sets:: class CJK(Chinese, Japanese, Korean): pass """ _ranges: UnicodeRangeList = [] @_lazyclassproperty def _chars_for_ranges(cls): ret = [] for cc in cls.__mro__: if cc is unicode_set: break for rr in getattr(cc, "_ranges", ()): ret.extend(range(rr[0], rr[-1] + 1)) return [chr(c) for c in sorted(set(ret))] @_lazyclassproperty def printables(cls): "all non-whitespace characters in this range" return "".join(filterfalse(str.isspace, cls._chars_for_ranges)) @_lazyclassproperty def alphas(cls): "all alphabetic characters in this range" return "".join(filter(str.isalpha, cls._chars_for_ranges)) @_lazyclassproperty def nums(cls): "all numeric digit characters in this range" return "".join(filter(str.isdigit, cls._chars_for_ranges)) @_lazyclassproperty def alphanums(cls): "all alphanumeric characters in this range" return cls.alphas + cls.nums @_lazyclassproperty def identchars(cls): "all characters in this range that are valid identifier characters, plus underscore '_'" return "".join( sorted( set( "".join(filter(str.isidentifier, cls._chars_for_ranges)) + "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyzªµº" + "ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõöøùúûüýþÿ" + "_" ) ) ) @_lazyclassproperty def identbodychars(cls): """ all characters in this range that are valid identifier body characters, plus the digits 0-9 """ return "".join( sorted( set( cls.identchars + "0123456789" + "".join( [c for c in cls._chars_for_ranges if ("_" + c).isidentifier()] ) ) ) ) class pyparsing_unicode(unicode_set): """ A namespace class for defining common language unicode_sets. """ # fmt: off # define ranges in language character sets _ranges: UnicodeRangeList = [ (0x0020, sys.maxunicode), ] class BasicMultilingualPlane(unicode_set): "Unicode set for the Basic Multilingual Plane" _ranges: UnicodeRangeList = [ (0x0020, 0xFFFF), ] class Latin1(unicode_set): "Unicode set for Latin-1 Unicode Character Range" _ranges: UnicodeRangeList = [ (0x0020, 0x007E), (0x00A0, 0x00FF), ] class LatinA(unicode_set): "Unicode set for Latin-A Unicode Character Range" _ranges: UnicodeRangeList = [ (0x0100, 0x017F), ] class LatinB(unicode_set): "Unicode set for Latin-B Unicode Character Range" _ranges: UnicodeRangeList = [ (0x0180, 0x024F), ] class Greek(unicode_set): "Unicode set for Greek Unicode Character Ranges" _ranges: UnicodeRangeList = [ (0x0342, 0x0345), (0x0370, 0x0377), (0x037A, 0x037F), (0x0384, 0x038A), (0x038C,), (0x038E, 0x03A1), (0x03A3, 0x03E1), (0x03F0, 0x03FF), (0x1D26, 0x1D2A), (0x1D5E,), (0x1D60,), (0x1D66, 0x1D6A), (0x1F00, 0x1F15), (0x1F18, 0x1F1D), (0x1F20, 0x1F45), (0x1F48, 0x1F4D), (0x1F50, 0x1F57), (0x1F59,), (0x1F5B,), (0x1F5D,), (0x1F5F, 0x1F7D), (0x1F80, 0x1FB4), (0x1FB6, 0x1FC4), (0x1FC6, 0x1FD3), (0x1FD6, 0x1FDB), (0x1FDD, 0x1FEF), (0x1FF2, 0x1FF4), (0x1FF6, 0x1FFE), (0x2129,), (0x2719, 0x271A), (0xAB65,), (0x10140, 0x1018D), (0x101A0,), (0x1D200, 0x1D245), (0x1F7A1, 0x1F7A7), ] class Cyrillic(unicode_set): "Unicode set for Cyrillic Unicode Character Range" _ranges: UnicodeRangeList = [ (0x0400, 0x052F), (0x1C80, 0x1C88), (0x1D2B,), (0x1D78,), (0x2DE0, 0x2DFF), (0xA640, 0xA672), (0xA674, 0xA69F), (0xFE2E, 0xFE2F), ] class Chinese(unicode_set): "Unicode set for Chinese Unicode Character Range" _ranges: UnicodeRangeList = [ (0x2E80, 0x2E99), (0x2E9B, 0x2EF3), (0x31C0, 0x31E3), (0x3400, 0x4DB5), (0x4E00, 0x9FEF), (0xA700, 0xA707), (0xF900, 0xFA6D), (0xFA70, 0xFAD9), (0x16FE2, 0x16FE3), (0x1F210, 0x1F212), (0x1F214, 0x1F23B), (0x1F240, 0x1F248), (0x20000, 0x2A6D6), (0x2A700, 0x2B734), (0x2B740, 0x2B81D), (0x2B820, 0x2CEA1), (0x2CEB0, 0x2EBE0), (0x2F800, 0x2FA1D), ] class Japanese(unicode_set): "Unicode set for Japanese Unicode Character Range, combining Kanji, Hiragana, and Katakana ranges" _ranges: UnicodeRangeList = [] class Kanji(unicode_set): "Unicode set for Kanji Unicode Character Range" _ranges: UnicodeRangeList = [ (0x4E00, 0x9FBF), (0x3000, 0x303F), ] class Hiragana(unicode_set): "Unicode set for Hiragana Unicode Character Range" _ranges: UnicodeRangeList = [ (0x3041, 0x3096), (0x3099, 0x30A0), (0x30FC,), (0xFF70,), (0x1B001,), (0x1B150, 0x1B152), (0x1F200,), ] class Katakana(unicode_set): "Unicode set for Katakana Unicode Character Range" _ranges: UnicodeRangeList = [ (0x3099, 0x309C), (0x30A0, 0x30FF), (0x31F0, 0x31FF), (0x32D0, 0x32FE), (0xFF65, 0xFF9F), (0x1B000,), (0x1B164, 0x1B167), (0x1F201, 0x1F202), (0x1F213,), ] class Hangul(unicode_set): "Unicode set for Hangul (Korean) Unicode Character Range" _ranges: UnicodeRangeList = [ (0x1100, 0x11FF), (0x302E, 0x302F), (0x3131, 0x318E), (0x3200, 0x321C), (0x3260, 0x327B), (0x327E,), (0xA960, 0xA97C), (0xAC00, 0xD7A3), (0xD7B0, 0xD7C6), (0xD7CB, 0xD7FB), (0xFFA0, 0xFFBE), (0xFFC2, 0xFFC7), (0xFFCA, 0xFFCF), (0xFFD2, 0xFFD7), (0xFFDA, 0xFFDC), ] Korean = Hangul class CJK(Chinese, Japanese, Hangul): "Unicode set for combined Chinese, Japanese, and Korean (CJK) Unicode Character Range" class Thai(unicode_set): "Unicode set for Thai Unicode Character Range" _ranges: UnicodeRangeList = [ (0x0E01, 0x0E3A), (0x0E3F, 0x0E5B) ] class Arabic(unicode_set): "Unicode set for Arabic Unicode Character Range" _ranges: UnicodeRangeList = [ (0x0600, 0x061B), (0x061E, 0x06FF), (0x0700, 0x077F), ] class Hebrew(unicode_set): "Unicode set for Hebrew Unicode Character Range" _ranges: UnicodeRangeList = [ (0x0591, 0x05C7), (0x05D0, 0x05EA), (0x05EF, 0x05F4), (0xFB1D, 0xFB36), (0xFB38, 0xFB3C), (0xFB3E,), (0xFB40, 0xFB41), (0xFB43, 0xFB44), (0xFB46, 0xFB4F), ] class Devanagari(unicode_set): "Unicode set for Devanagari Unicode Character Range" _ranges: UnicodeRangeList = [ (0x0900, 0x097F), (0xA8E0, 0xA8FF) ] # fmt: on pyparsing_unicode.Japanese._ranges = ( pyparsing_unicode.Japanese.Kanji._ranges + pyparsing_unicode.Japanese.Hiragana._ranges + pyparsing_unicode.Japanese.Katakana._ranges ) pyparsing_unicode.BMP = pyparsing_unicode.BasicMultilingualPlane # add language identifiers using language Unicode pyparsing_unicode.العربية = pyparsing_unicode.Arabic pyparsing_unicode.中文 = pyparsing_unicode.Chinese pyparsing_unicode.кириллица = pyparsing_unicode.Cyrillic pyparsing_unicode.Ελληνικά = pyparsing_unicode.Greek pyparsing_unicode.עִברִית = pyparsing_unicode.Hebrew pyparsing_unicode.日本語 = pyparsing_unicode.Japanese pyparsing_unicode.Japanese.漢字 = pyparsing_unicode.Japanese.Kanji pyparsing_unicode.Japanese.カタカナ = pyparsing_unicode.Japanese.Katakana pyparsing_unicode.Japanese.ひらがな = pyparsing_unicode.Japanese.Hiragana pyparsing_unicode.한국어 = pyparsing_unicode.Korean pyparsing_unicode.ไทย = pyparsing_unicode.Thai pyparsing_unicode.देवनागरी = pyparsing_unicode.Devanagari