Precomposed form

[Abdulrahman I. ALGhadir]

I know this question has nothing to do with this mailing list but I am
just wondering is there any rule that decided whenever a sequence of
code-points have a certain percomposed form or if there is already a
code-point which has an identical display as for a sequence code-points
to be its precomposed form or not.

Ex.:

U+062d U+0654 this sequence of NSM and a normal character yield an
identical display for this code-point U+0681 

 

And you even check the description for U+0681   here :

http://unicode.org/charts/PDF/U0600.pdf

 

"0681 <Unicode > ARABIC LETTER HAH WITH HAMZA ABOVE" 

 

>From the description of it you can clearly see that this letter is equal
to 

U+062d U+0654

 

" 062d  <Unicode> ARABIC LETTER HAH"

" 0654  <Unicode > ARABIC HAMZA ABOVE"

 

So I think these two sets should be relatively as one of them is
precomposed of the sequence code-points 

 

Same as this example 

"0623 <Unicode> ARABIC LETTER ALEF WITH HAMZA ABOVE = 0627 <Unicode>

0654 <Unicode>"

 

There a lot of combinations of NSM with other code-points which are same
as the example mentioned above.

 

Abdulrahman, 

 

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.alvestrand.no/pipermail/idna-update/attachments/20101020/50d1ae0b/attachment.html>