[Python-Dev] UCS2/UCS4 default (original) (raw)

Paul Moore p.f.moore at gmail.com
Thu Jul 3 17:32:37 CEST 2008

On 03/07/2008, Guido van Rossum <guido at python.org> wrote:

I don't see an answer there to the question of whether the length() method of a Java String object containing a single surrogate pair returns 1 or 2; I suspect it returns 2.

It appears you're right:

type testucs.java class testucs { public static void main(String[] args) { StringBuilder s = new StringBuilder("Hello, "); s.appendCodePoint(0x2F81A); System.out.println(s); // Display the string. System.out.println(s.length()); } }

java testucs Hello, ? 9

java -version java version "1.6.0_05" Java(TM) SE Runtime Environment (build 1.6.0_05-b13) Java HotSpot(TM) Client VM (build 10.0-b19, mixed mode, sharing)

Python 3 supports things like chr(0x12345) and ord("\U00012345"). (And so does Python 2, using unichr and unicode literals.)

And Java doesn't appear to - that appendCodePoint() method was wonderfully hard to find :-)

Paul.

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