I'm unable to enter the simplified chinese character ¿ (a donkey) 
as lu:2 [1] using Emacs input method chinese-tonepy-punct. The 
workaround is to use lu:5 which is not very correct.

C-h C-a reports "This is GNU Emacs 23.1.1 (x86_64-suse-linux-gnu, X 
toolkit, Xaw3d scroll bars) of 2010-04-01 on build17"

I set the input method using set-input-method 'chinese-tonepy-punct 
which gives me the mode line indicator Æ´·û.

The poor donkey is not as impressive as a gnu, but a useful animal. 
Why can't he have his lu:2?

Roger

[1] Xiandai Hanyu Cidian ÏÖ´úººÓï´Êµä 5th edition 2007 page 890.