Am Sonntag, 1. November 2015 um 21:48:28, schrieb Guenter Milde 
<mi...@users.sf.net>
> On 2015-11-01, Kornel Benko wrote:
> > Am Sonntag, 1. November 2015 um 19:37:41, schrieb Guenter Milde 
> > <mi...@users.sf.net>
> >> On 2015-10-30, Kornel Benko wrote:
> 
> ...
> 
> >> > Besides we have ATM about 200 failing export test cases.
> 
> ...
> 
> >> How many of these are for the obscure combination of Xetex and Tex fonts?
> >> While there is a use case for LuaTeX and TeX fonts, I can't see a reason to
> >> use Xetex instead of pdflatex with TeX fonts!
> 
> > 316 tests are XeTex + system font, 52 (not inverted) of them fail, 42 
> > inverted
> > 316 tests are XeTex + tex font, 12 (not inverted) of them fail, 54 inverted
> 
> >> Solving all issues that arise from this combination is diverting attention
> >> and ressources from more important tasks. 
> 
> > Most of these tests were working some time ago. 
> 
> Many of them "by chance": not failing but with incorrect output (Missing
> characters, wrong characters) or "fragile" (working, but would fail by
> addition of one non-ASCII character, say).

Sure, but we have to check, ...
It is not done by simply declaring them to be inverted.

> > We already have many inverted test.
> 
> This also adds to the impression, that this is an area where test
> failures are to be expected for many reasons. I.e. the signal to noise ratio
> is rather bad for XeTeX+TeX fonts and we would be better of without these
> tests.
> 
> > I am strongly against such policy. First one has to check if the reason is 
> > really
> > babel/polyglossia conflict.
> 
> There are many more reasons, mhchem, babel language files, font problems, ...

Yes, and I am grateful too for what you have done in this direction.

> The combination XeTeX + TeX-fonts is not supported by many packages,
> including standard LaTeX packages like "inputenc"! OTOH, it is so obscure
> that it is really not worth wasting much time to work around all the
> problems. Rather treat/document it as: avoid if possible, use at your own
> risk.

My argument is not that they do not belong into the set of reverted, but I'd 
like them
to be checked first.
They will be included with the appropriate comment.

> Günter

        Kornel

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