Unicode 11 Georgian uppercase vs. fonts

[Michael Everson via Unicode]

On 27 Jul 2018, at 13:37, Alexey Ostrovsky via Unicode <unicode at unicode.org> wrote:
> 
> On Fri, Jul 27, 2018 at 3:58 PM, Michael Everson via Unicode <unicode at unicode.org> wrote:
> 
> Then how can you prove it is a case and not a stylistic variation? Let's compare with a case of Hebrew or Arabic, for example.

Well, go ahead. Compare it. Show some example of Hebrew or Arabic that is consistent with the evidence we have shown.

1) Show evidence of titlecasing in Hebrew or Arabic.

2) Show evidence of ALL CAPS in Hebrew or Arabic.

3) Show evidence of small caps in Hebrew or Arabic.

You won’t be able to, because there is no case in Hebrew or Arabic. 

> > The criteria for presence of orthographic distinction between cases is clear: there must be either some typical usage of a case (like USA) or there must be a semantic difference between different cases (like smith vs. Smith).
> Your analysis is mistaken. There is no “must”. 
> 
> You can formulate your criteria probably. 

The structure of the Georgian script is casing. The modern standard orthographic use made of case is unique to Georgian. This was easy to describe. 

> There is no Georgian orthography rules that regulate use of upper-case. If I am wrong, I will be happy to see an orthographic rule that distinguish between upper- and lowercase or, at least, recommends to use uppercase.
> The rule is given clearly in N4712 §8. 
> 
> Does it mean that N4712 provides orthographic rules for Georgian?

N4712 describes the two kinds of orthographic rules which have been used for Georgian. To summarize again:

A) Modern Georgian orthography uses lowercase letters always, unless uppercase letters are used in which all the letters in the word are uppercase. 

B) Some 19th and early 20th-century orthography uses lowercase and uppercase letters in the same way that they are used in Cyrillic and Latin. 

> You stated the rule is orthographic. Can you provide any proof except re-asserting what is already stated in N4712?

In N4712 we correctly describe the behaviour of two kinds of Georgian orthography. 

> What do you mean by "orthographic", by the way -- simply a habit of writing, or whether a written text is correct or not?

“Orthography” is the same thing as “spelling”. 

Michael