colors

[David Carlisle]

Yes the fix as I posted here earlier, or wait a day as that miniltx has
been sent to ctan so should appear in distributions in the next day or so.

David

On Mon, 13 Jun 2022 at 16:01, Gérald Tenenbaum <gerald.ten at free.fr> wrote:

> Well, I also use LaTeX.
> Is it possible to find out what made the last update incompatible with
> eplain?
>
> David Carlisle a écrit le 13/06/2022 à 15:50 :
>
>
>
> On Mon, 13 Jun 2022 at 13:00, Gérald Tenenbaum <gerald.ten at free.fr> wrote:
>
>> Thank you.
>> Actually, I found up that it is the update of the package graphics that
>> broke the use of color, that was previously known to work with eplain. I
>> reverted graphics to the previous version and color works again.
>> Regards,
>>
>> Gérald
>>
>
> That may be OK on a personal installation if you don't use latex, but I
> can't really recommend it. It's an untested and unsupportable configuration
> and would break color and graphics support in latex
>
> David.
>
>>
>> David Carlisle a écrit le 13/6/22 à 13:00 :
>>
>>
>> You should I think be able to add
>>
>>
>> \ifx\mathcolor\@undefined
>>   % simplified version of \mathcolor
>>   \protected\def\mathcolor{\begingroup\@ifnextchar[\mlx at mathcolora
>> \mlx at mathcolorb}
>>   \long\def\mlx at mathcolora[#1]#2#3{\color[#1]{#2}#3\endgroup}
>>   \long\def\mlx at mathcolorb#1#2{\color{#1}#2\endgroup}
>> \fi
>>
>> to the end of miniltx.ltx  If  that works for your real documents I'll
>> arrange an update at ctan
>>
>> David
>>
>>
>> On Mon, 13 Jun 2022 at 10:56, Gérald Tenenbaum <gerald.ten at free.fr>
>> wrote:
>>
>>> Hello,
>>>
>>> Here is a small file that used to work but doesn't anymore:
>>>
>>> \input eplain
>>> \beginpackages
>>> \usepackage{color}
>>> \endpackages
>>> \long\def\red#1{{\color{red}#1}}
>>> \red{ab}
>>> \bye
>>>
>>>
>>> The error message is:
>>>
>>> This is pdfTeX, Version 3.141592653-2.6-1.40.24 (TeX Live 2022)
>>> (preloaded format=pdftex)
>>>  restricted \write18 enabled.
>>> entering extended mode
>>> (./essai.tex (/usr/local/texlive/2022/texmf-dist/tex/eplain/eplain.tex)
>>> (/usr/local/texlive/2022/texmf-dist/tex/plain/graphics-pln/miniltx.tex)
>>> (/usr/local/texlive/2022/texmf-dist/tex/latex/graphics/color.sty
>>> (/usr/local/texlive/2022/texmf-dist/tex/latex/graphics-cfg/color.cfg)
>>> (/usr/local/texlive/2022/texmf-dist/tex/latex/graphics-def/pdftex.def)
>>> (/usr/local/texlive/2022/texmf-dist/tex/latex/graphics/mathcolor.ltx
>>> /usr/local/texlive/2022/texmf-dist/tex/latex/graphics/mathcolor.ltx:21:
>>> Undefined control sequence.
>>> l.21 \ExplSyntaxOn
>>>
>>> Many thanks for help.
>>> Regards,
>>>
>>> Gérald
>>>
>>
>>
>
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