Mark,
The high/lowSurrogate(codepoint) pair has been added in jdk1.7 already.
http://download.java.net/jdk7/docs/api/java/lang/Character.html#highSurrogate(int)
<http://download.java.net/jdk7/docs/api/java/lang/Character.html#highSurrogate%28int%29>
http://download.java.net/jdk7/docs/api/java/lang/Character.html#lowSurrogate(int)
<http://download.java.net/jdk7/docs/api/java/lang/Character.html#lowSurrogate%28int%29>
I submitted CR#7015408 for the third (formatting) one.
-Sherman
On 01/26/2011 01:36 PM, Mark Davis ☕ wrote:
Ok, now I understand. With that change, the situation is much better.
It doesn't fully satisfy RL1.1, because you can't use hex codepoint
numbers -- you have to use the fairly ugly workaround of
String hexPattern = codePoint <= 0xFFFF
? String.format("\\u%04x", codePoint)
: String.format("\\u%04x\\u%04x", (int)
Character.toChars(codePoint)[0], (int) Character.toChars(codePoint)[1]);
BTW, in plain Java I really miss a few of the ICU4J routines, like:
* char c1 = UTF16.getLeadSurrogate(codePoint);
* char c2 = UTF16.getLeadSurrogate(codePoint);
* String s = UTF16.valueOf(codePoint);
You can do them in plain Java, as in the above expression, but they're
awkward and not as clear to read. And instead of the third one, the
best I see in plain Java is the following, which is really pretty ugly
(is there any better way?).
String s = new StringBuilder().appendCodePoint(codePoint).toString();
Mark
