bug#20628: 25.0.50; Incorrect line height for some fonts

[Oleh Krehel]

Eli Zaretskii <eliz@gnu.org> writes:

>> I still see the problem with the current branch head. Here are my settings:
>> 
>> (font-lock-add-keywords
>>  'emacs-lisp-mode
>>  `((,"\\\\\\\\|"
>>     (0 font-lock-keyword-face t)
>>     (0
>>      (prog1
>>          (compose-region
>>           (match-beginning 0)
>>           (match-end 0)
>>           ,"∨")
>>        nil)))))
>
> Sorry, I don't understand: what do you do _after_ evaluating the
> above, to show the problem?
>
> IOW, I'm guessing that your recipe is this:
>
>   emacs -Q
>   M-: (set-frame-font "Latin Modern Math") RET
>   "M-:" to eval the above form to set up font-lock-keyword
>   and then ...?

Insert this string into an `emacs-lisp-mode' buffer:

    "^\\|\\s-\\|\\[\\|[(`'#@~_%,]"