JezK
Edit File: encoding.py
"""Encoding.""" # standard import re # local from .utils import validator @validator def base16(value: str, /): """Return whether or not given value is a valid base16 encoding. Examples: >>> base16('a3f4b2') True >>> base16('a3f4Z1') ValidationError(func=base16, args={'value': 'a3f4Z1'}) Args: value: base16 string to validate. Returns: (Literal[True]): If `value` is a valid base16 encoding. (ValidationError): If `value` is an invalid base16 encoding. """ return re.match(r"^[0-9A-Fa-f]+$", value) if value else False @validator def base32(value: str, /): """Return whether or not given value is a valid base32 encoding. Examples: >>> base32('MFZWIZLTOQ======') True >>> base32('MfZW3zLT9Q======') ValidationError(func=base32, args={'value': 'MfZW3zLT9Q======'}) Args: value: base32 string to validate. Returns: (Literal[True]): If `value` is a valid base32 encoding. (ValidationError): If `value` is an invalid base32 encoding. """ return re.match(r"^[A-Z2-7]+=*$", value) if value else False @validator def base58(value: str, /): """Return whether or not given value is a valid base58 encoding. Examples: >>> base58('14pq6y9H2DLGahPsM4s7ugsNSD2uxpHsJx') True >>> base58('cUSECm5YzcXJwP') True Args: value: base58 string to validate. Returns: (Literal[True]): If `value` is a valid base58 encoding. (ValidationError): If `value` is an invalid base58 encoding. """ return re.match(r"^[1-9A-HJ-NP-Za-km-z]+$", value) if value else False @validator def base64(value: str, /): """Return whether or not given value is a valid base64 encoding. Examples: >>> base64('Y2hhcmFjdGVyIHNldA==') True >>> base64('cUSECm5YzcXJwP') ValidationError(func=base64, args={'value': 'cUSECm5YzcXJwP'}) Args: value: base64 string to validate. Returns: (Literal[True]): If `value` is a valid base64 encoding. (ValidationError): If `value` is an invalid base64 encoding. """ return ( re.match(r"^(?:[A-Za-z0-9+/]{4})*(?:[A-Za-z0-9+/]{2}==|[A-Za-z0-9+/]{3}=)?$", value) if value else False )