On Wed, Jan 4, 2017 at 2:28 AM, Alastair Houghton < [email protected]> wrote:
> RFC 5893 seems pretty clear to me, and the problem really is that the test > vectors (which come from unicode.org) seem (to me) to be incorrect. https://tools.ietf.org/html/rfc5893#section-2 says "*The following rule*, consisting of six conditions, *applies to labels* in Bidi domain names." That's what the ICU code does -- applying the rule to each label -- and I assume that's the basis for the test data. The latter part of this RFC section says that *if* certain conditions are met *for all labels, then* the domain name as a whole displays well. ICU does not currently check for multi-label bidi combinations. FYI the ICU checkLabelBiDi() code is currently here <http://bugs.icu-project.org/trac/browser/trunk/icu4j/main/classes/core/src/com/ibm/icu/impl/UTS46.java#L541> (Java version). markus
