It might be a good idea to deal with input case in a more explicit way, either by documenting that the validation is case-sensitive, converting the inputs internally, or using case-insensitive comparisons.
I expect there is some reason for this (probably defined in some RFC about domain names) that would seem obvious to someone who knows, but my expectation as a new user of the library is that a parse_domain_name function would deal with the casing of the input somehow.
I was somewhat surprised by this behavior:
It might be a good idea to deal with input case in a more explicit way, either by documenting that the validation is case-sensitive, converting the inputs internally, or using case-insensitive comparisons.
I expect there is some reason for this (probably defined in some RFC about domain names) that would seem obvious to someone who knows, but my expectation as a new user of the library is that a
parse_domain_name
function would deal with the casing of the input somehow.