Regex Patterns

Float Number

re.compile(r'-?\d+(\.\d+)?')

IPv4 Address

re.compile(r'((2(5[0-5]|[0-4]\d))|[0-1]?\d{1,2})(\.((2(5[0-5]|[0-4]\d))|[0-1]?\d{1,2})){3}')

ID

re.compile(r'[A-Za-z]\w*')

English Domain Name

re.compile(r'[a-zA-Z0-9]+[a-zA-Z0-9-]*[a-zA-Z0-9]+\.[a-zA-Z]{2,}', re.IGNORECASE)

Email

re.compile(r'\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*', re.IGNORECASE)

HTML

re.compile(r'<\S+[^>]*>.*?|<.*? />', re.IGNORECASE | re.DOTALL)

Chinese Character

re.compile(r'[\u4E00-\u9FA5]')

Color RGB Hex Representation

re.compile(r'#([a-fA-F0-9]{6}|[a-fA-F0-9]{3})', re.IGNORECASE)

WeChat (Weixin) ID

re.compile(r'[a-zA-Z][a-zA-Z0-9_-]{5,19}')

QQ Number/ID

re.compile(r'[1-9][0-9]{4,10}')

Chinese Telephone Number

re.compile(r'(13[0-9]|14[01456879]|15[0-35-9]|16[2567]|17[0-8]|18[0-9]|19[0-35-9])\d{8}')

Chinese ID

re.compile(r'\d{15}$)|(^\d{18}$)|(^\d{17}(\d|X|x)')