bug#6718: 23.2; Should align glyphs according to grid in ansi-term

[Basil L. Contovounesios]

Stefan Kangas <stefan@marxist.se> writes:

> Jonathan Kleinehellefort <jk@molb.org> writes:
>
>> I came across this when I tried using the font Inconsolata inside
>> ansi-term.  Inconsolata does not cover a couple of special Unicode
>> characters, some of which frequently show up in the output of various
>> terminal applications.
>>
>> Emacs will then fall back on some other font with completely different
>> geometry for those, destroying the grid layout of the buffer.
>>
>> Steps to reproduce:
>>
>>  1. run "emacs -Q"
>>  2. M-x term
>>  4. type "pstree" into the shell
>>  5. Choose "Inconsolata" as your font
>>
>> Result:
>>
>> Characters now have non-uniform width and height. Note that the pretty
>> tree drawing gets destroyed.
>>
>> Expected result:
>>
>> Glyphs should be aligned in a grid.
>>
>> Using a more comprehensive font (e.g. DejaVu Sans Mono) does not solve
>> this completely, as you can still get the same problem with e.g. Chinese
>> characters.
>
> Is there really anything that can be done about this, besides a complete
> redesign of how fonts work in Emacs?

Is there any overlap here with https://debbugs.gnu.org/44664?

-- 
Basil