Uwe Brauer <[email protected]> writes:

Hi Uwe,

> When I compile a LaTeX document which contains.
>
> $\phi \varphi$
>
> The pdf file presents these symbols as  (screenshot attached)
>  ϕ φ
>
>
> But when I use prettifying \varphi is not displayed and \phi is
> displayed as if it were \varphi

Indeed, there's no symbol for \varphi defined in
lisp/textmodes/tex-mode.el (in Emacs).  Please go and add it, and also
switch the unicode symbols appropriately.  Then do M-x report-emacs-bug
and attach you patch there.  Thanks!

> On top of that when use set-input-method TeX
>
> And
>
> \phi --> φ
>
> \varphi --> ϕ 
>
> So it seems to me, latex is right input-method is wrong and
> prettifying as well.

Yes, that's also twisted.  You can fix it in
lisp/leim/quail/latin-ltx.el.  There you'll see that there's already a
FIXME workaround for \sigma/\varsigma which also looked reversed with
the normal generation strategy.

Bye,
Tassilo

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