When using Catalyst::Action::REST the content-type response never includes
a charset. JSON seems to be handled correctly in code -- JSON strings are
always UTF-8. Does that mean there is no need to specify a charset on
responses?
And what if a JSON request comes in with a non-UTF8 charset? Should that
be ignored? It's application/json, not text/json so maybe there no
encoding issues?
What about other serializations? YAML is UTF-8 or UTF-16. Does that mean
the charset needs to be included in response? And again, if a request
comes in with UTF-16 does it need to be decoded or does that happen in
YAML::Syck?
Event text/html doesn't include a charset in a the "serialized" response.
Does there need to be an additional decoding and encoding layer when using
Catalyst::Action::REST? Should I force a charset on all responses?
BTW -- doesn't seem like YAML survies a round trip like JSON does:
As expected:
$ perl -MEncode -wle '$x = "\x{263A}"; print length( $x )'
1
$ perl -MEncode -wle '$x = Encode::encode_utf8("\x{263A}"); print length(
$x )'
3
And also as expected:
$ perl -MJSON -MEncode -wle 'print
length(JSON::decode_json(JSON::encode_json( ["\x{263A}"]) )->[0])'
1
But YAML drops the utf8 flag:
$ perl -MYAML::Syck -MEncode -wle 'print
length(YAML::Syck::Load(YAML::Syck::Dump( ["\x{263A}"]) )->[0])'
3
--
Bill Moseley
mose...@hank.org
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