Re: Questions regarding U+FD3E ORNATE LEFT PARENTHESIS and U+FD3F ORNATE RIGHT PARENTHESIS

On 12/6/2007 2:10 PM, Kent Karlsson wrote:
>  
>   
>>> b.) Why U+FD3E and U+FD3F have the Bidi_mirroring property not set?
>>>       
>> IIRC, this is by design for back-compat reasons. I believe it 
>> has been discussed on this list before.
>>     
>
> I did (long ago) suggest to the UTC, in a beta comment for 5.0 IIRC,
> that they be mirrored. However, the UTC decided to mirror quote marks
> instead. The latter I did NOT suggest, and that change was a really bad
> move, and has since been backed on. However, I still think the ornate
> parentheses should be mirrored, especially if they are used both in
> LTR and RTL texts rather than only in RTL texts.
>   

Paradoxically, because they are used in RTL contexts, it is inadvisable 
to make any change. As was discovered with the quotes, which were 
incorrectly believed to *not* occur in RTL usage, any change 
/invalidates/ all existing RTL documents. Not a good idea then, and not 
a good idea now.

With mirroring, once a characters is added, that's the last time you can 
change its mirroring property.

A./