MatchesMimeType🔗

Type: Pattern verification

Check that text conforms to the pattern of MIME type.

The definition has been taken from: https://www.rfc-editor.org/rfc/rfc7231#section-3.1.1.1, https://www.rfc-editor.org/rfc/rfc7230#section-3.2.3 and https://www.rfc-editor.org/rfc/rfc7230#section-3.2.6.

text🔗: Text to be checked
Return🔗: True if the text conforms to the pattern

Code

tchar = "[!#$%&'*+\\-.^_`|~0-9a-zA-Z]"
token = f"({tchar})+"
type = f"{token}"
subtype = f"{token}"
ows = "[ \t]*"
obs_text = "[\\x80-\\xff]"
qd_text = f"([\t !#-\\[\\]-~]|{obs_text})"
quoted_pair = f"\\\\([\t !-~]|{obs_text})"
quoted_string = f'"({qd_text}|{quoted_pair})*"'
parameter = f"{token}=({token}|{quoted_string})"
media_type = f"^{type}/{subtype}({ows};{ows}{parameter})*$"

return match(media_type, text) is not None