汉字 Unicode 编码范围

来源：https://www.qqxiuzi.cn/zh/hanzi-unicode-bianma.php

参考：https://unicode-table.com/cn/

  

# 有拼音的汉字
if SUPPORT_UCS4:
    RE_HANS = re.compile(
        r'^(?:['
        r'u3007'                  # 〇
        r'u3400-u4dbf'           # CJK扩展A:[3400-4DBF]
        r'u4e00-u9fff'           # CJK基本:[4E00-9FFF]
        r'uf900-ufaff'           # CJK兼容:[F900-FAFF]
        r'U00020000-U0002A6DF'   # CJK扩展B:[20000-2A6DF]
        r'U0002A703-U0002B73F'   # CJK扩展C:[2A700-2B73F]
        r'U0002B740-U0002B81D'   # CJK扩展D:[2B740-2B81D]
        r'U0002F80A-U0002FA1F'   # CJK兼容扩展:[2F800-2FA1F]
        r'])+$'
    )
else:
    RE_HANS = re.compile(  # pragma: no cover
        r'^(?:['
        r'u3007'                  # 〇
        r'u3400-u4dbf'           # CJK扩展A:[3400-4DBF]
        r'u4e00-u9fff'           # CJK基本:[4E00-9FFF]
        r'uf900-ufaff'           # CJK兼容:[F900-FAFF]
        r'])+$'
    )

def _is_chinese_char(self, cp):
    """Checks whether CP is the codepoint of a CJK character."""
    # This defines a "chinese character" as anything in the CJK Unicode block:
    #   https://en.wikipedia.org/wiki/CJK_Unified_Ideographs_(Unicode_block)
    #
    # Note that the CJK Unicode block is NOT all Japanese and Korean characters,
    # despite its name. The modern Korean Hangul alphabet is a different block,
    # as is Japanese Hiragana and Katakana. Those alphabets are used to write
    # space-separated words, so they are not treated specially and handled
    # like the all of the other languages.
    if ((cp >= 0x4E00 and cp <= 0x9FFF) or  #
            (cp >= 0x3400 and cp <= 0x4DBF) or  #
            (cp >= 0x20000 and cp <= 0x2A6DF) or  #
            (cp >= 0x2A700 and cp <= 0x2B73F) or  #
            (cp >= 0x2B740 and cp <= 0x2B81F) or  #
            (cp >= 0x2B820 and cp <= 0x2CEAF) or
            (cp >= 0xF900 and cp <= 0xFAFF) or  #
            (cp >= 0x2F800 and cp <= 0x2FA1F)):  #
        return True

    return False