ISO 8859-6 (was: ISO 8859-11 Latin/Thai + Euro)

Markus Kuhn had written:
> I suspect they are the same and that [ISO 8859-11] will be

> the first part of ISO 8859 that has combining characters.


Roozbeh Pournader wrote:

> No, the first was ISO 8859-6. Sorry to disappoint ;)

Quote from ISO 8859-6 (1st ed., 1987), section 1:
| This part of ISO 8859 specifies a set of 146 graphic characters
| identified as the Arabic/Latin alphabet and the coded represen-
| tation of each of theses characters by means of a single 8-bit
| byte.

Quote from ISO 8859-6 (1st ed., 1987), section 7:
| The use of control functions, such as BACKSPACE or
| CARRIAGE RETURN for the coded representation of com-
| posite characters is prohibited by this part of ISO 8859.

The issue of combining characters is not mentioned in
ISO 8859-6. Do you think, it is implicit in the character
names? And if so, which characters are combining, in your
opinion?

Best wishes,
   Otto Stolz