bug#35816: 26.2; set-frame-font cannot set some fonts which autocomplete suggests due to dashes in names. I.e. gnu-unifont

[Lars Ingebrigtsen]

Eli Zaretskii <eliz@gnu.org> writes:

>> This bug was only about XLFD fonts, though.
>
> AFAIR, we eventually convert all the other forms into XLFD format.

Oh, we do?  I didn't know that.  Well, then there might be problems.
But...  why?  I thought everything got parsed into font-spec structures.

>> I didn't see anything about dashes in the set-face-font doc string?
>
>   The format of the font string specification varies based on the font
>   system in use, but it can commonly be an X Logical Font
>   Description (XLFD) string, or a simpler string like "Courier-10"
>   or "courier:size=10".

Right.  

(font-spec :name "Courier-10")
=> #<font-spec nil nil Courier nil nil nil nil nil 10.0 nil nil nil ((:name . 
"Courier-10"))>

(font-spec :name "Courier-Foo-10")
=> #<font-spec nil nil Courier-Foo nil nil nil nil nil 10.0 nil nil nil ((:name 
. "Courier-Foo-10"))>

Both before and after the changes.

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