[alreq] Section on overlapping letter glyphs

behnam has just created a new issue for https://github.com/w3c/alreq:

== Section on overlapping letter glyphs ==
In various styles of Persian/Arabic script, glyphs of letters may 
overlap intentionally. I think we need to cover this script feature 
under letter positioning section.

An example from Zarnegar 5.2 Catalog 
(http://sinasoft.com/Downloads/zarnegar5.2/catalog/Zar52Cat.pdf): on 
the right we have "before repositioning" and on the left we have 
"after repositioning".

![image](https://cloud.githubusercontent.com/assets/37169/21593581/6334f6fc-d0de-11e6-8c37-915415aee839.png)

We should also note that sometimes, mostly because of bad (mainly 
practical) font glyph data, *unintentional* glyph overlap may occur. 
This unintentional behavior is different from the intentional design 
mentioned above, and a shaping engine may decide to be smart about 
this and resolve it somehow.



See https://github.com/w3c/alreq/issues/87
Please do NOT reply to this email. If you'd like to contribute to the 
discussion, please do so at the above link. You will need to subscribe
 yourself to the issue (using the button provided by that page) to 
receive notifications of further comments.

Received on Monday, 2 January 2017 17:32:59 UTC