pub fn parse_credential_scope(input: &str) -> IResult<&str, (&str, &str)>Expand description
Extract the (region, service) pair from a Credential=… scope string.
The credential scope has the form:
<ACCESS_KEY>/<DATE>/<REGION>/<SERVICE>/aws4_request
Works whether the input starts directly at Credential= or has other text
before it (e.g. a full Authorization: header value).
§Errors
Returns a nom parse error if Credential= is absent or the scope does not
contain the mandatory /aws4_request trailer.