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


From: Clément Pit--Claudel
Subject: bug#20628: 25.0.50; Incorrect line height for some fonts
Date: Fri, 22 May 2015 15:09:11 -0400
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.7.0

On 05/22/2015 02:43 PM, Eli Zaretskii wrote:
>> From: Oleh Krehel <address@hidden>
>> Cc: address@hidden,  address@hidden
>> Date: Fri, 22 May 2015 20:18:17 +0200
>>
>> Eli Zaretskii <address@hidden> writes:
>>
>>>> From: Oleh Krehel <address@hidden>
>>>> Cc: address@hidden,  address@hidden
>>>> Date: Fri, 22 May 2015 18:54:17 +0200
>>>>
>>>> I attach a patch that sets ascent/descent to 0 specifically for the
>>>> problematic font family "Latin Modern Math".
>>>
>>> That's hardly TRT.
>>
>> Why not?
> 
> Because you assume no one will want to see that font in its original
> metrics, and don't provide any way for users that might want that to
> get that back.  There's no "fire escape".

If we don't find what causes this strange ascent computation, and as a slightly 
more general approach that the patch above, what about including an 
ascent-override-alist at the Lisp level, which could by default contain ("Latin 
Modern Math" . 0) and maybe other entries for a number of other Latin Modern 
variants?





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