Re: Proposal for isolation characters in Unicode and the unicode-bidi:isolate and unicode-bidi:plaintext definitions

On 2012/05/15 5:06, Aharon (Vladimir) Lanin wrote:
> Last week, I wrote up and Mark Davis submitted to the UTC a proposal (
> http://goo.gl/K6qtV) for adding bidi isolation to Unicode. Here is the
> basic proposal:
>
> --- start quote ---
> Define three new Unicode formatting code points:
> LRI: marks the beginning of a left-to-right isolate.
> RLI: marks the beginning of a right-to-left isolate.
> FSI: marks the beginning of a first-strong isolate.
>
> Each would be matched with a PDF.

It may be worth considering to create a new character to close these 
embeddings. Otherwise, older algorithms will close LRE/RLE/LRO/RLO 
embeddings/overrides prematurely.

Another question: What's the relationship between this proposal and the 
new bidi control character that was proposed (I think by Apple) around 
last November's UTC?

Regards,   Martin.