Regression tests, UNICODE vs ASCII

Lina Kemmel LKEMMEL at
Sun Apr 14 05:08:43 CDT 2002


At least 2 code pages contain a couple of BiDi control characters:
    * Left-to-Right Mark (LRM) and Right-to-Left Mark (RLM) present in 
both 1255 and 1256 code pages (0xFD and 0xFE);
    * Zero Width Non-Joiner (ZWNJ) and Zero Width Joiner (ZWJ) -- in 
cp1256 (0x9D and 0x9E).


Shachar Shemesh <wine-devel at>
Sent by: wine-devel-admin at
14/04/02 09:50 ص
Please respond to Shachar Shemesh

        To:        Francois Gouget <fgouget at>
        cc:        Andriy Palamarchuk <apa3a at>, Geoffrey Hausheer 
<i8e7fkwmsl1 at>, wine-devel at
        Subject:        Re: Regression tests, UNICODE vs ASCII


One thing you may try are the explicit BiDi specifiers (Right to left, 
left to right etc.). These are Unicode characters designed to explicitly 
specify the direction of otherwise amigious characters.

Ansii does not have, to the best of my knowledge, an equivalent encoded 


Francois Gouget wrote:

>On Mon, 8 Apr 2002, Andriy Palamarchuk wrote:
>>A couple comments:
>>1) it is useful to check intermixed API calls, like
>>A->W->A to be sure they do conversions correctly.
>>2) while testing W functions use some Unicode symbols
>>which do not have corresponding ASCII symbols.
>   Could you give a couple examples of these Unicode symbols? I know
>that I would be hard-pressed to make up a Unicode string with anything
>significant. But if I had an example to base my code on, integrating it
>into my own tests should be trivial.
>Francois Gouget         fgouget at
>                            1 + e ^ ( i * pi ) = 0

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