<html><head></head><body><div style="font-family: Verdana;font-size: 12.0px;"><div>I've attached the TeX, dvi and pdf files for a working example.</div>
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<div>The commands I used were:</div>
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<div>tex ttemp.tex</div>
<div>dvipdfmx ttemp.dvi</div>
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<div>tex --version<br/>
TeX 3.14159265 (TeX Live 2019/Debian)<br/>
kpathsea version 6.3.1
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<div name="quote" style="margin:10px 5px 5px 10px; padding: 10px 0 10px 10px; border-left:2px solid #C3D9E5; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;">
<div style="margin:0 0 10px 0;"><b>Gesendet:</b> Montag, 13. Juni 2022 um 12:29 Uhr<br/>
<b>Von:</b> "Gérald Tenenbaum" <gerald.tenenbaum@univ-lorraine.fr><br/>
<b>An:</b> "Laurence Finston" <Laurence.Finston@gmx.de><br/>
<b>Cc:</b> tex-eplain@tug.org<br/>
<b>Betreff:</b> Re: [tex-eplain] colors</div>
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<div style="font-family: Lucida Sans;">Thanks.<br/>
The ouput of
<div style="margin-left: 40.0px;">\input colordvi</div>
<div style="margin-left: 40.0px;">\Red{abc}, \Blue{def}, $\ldots$</div>
<div>is all black on my mac using TeXShop.<br/>
Regards,<br/>
<br/>
Gérald</div>
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<br/>
<span>Laurence Finston a écrit le 13/6/22 à 12:14 :</span>
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<div>Not sure if this will help. I wasn't aware that eplain could (or should?) be used with LaTeX. At any rate,</div>
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<div>\input colordvi</div>
<div>\Red{abc}, \Blue{def}, $\ldots$</div>
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<div>works with plain and eplain. I'm not sure whether eplain is needed. colordvi.tex belongs to dvips. You can use dvipdfmx to make pdf.</div>
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<div>Laurence</div>
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<div style="margin: 10.0px 5.0px 5.0px 10.0px;padding: 10.0px 0 10.0px 10.0px;border-left: 2.0px solid rgb(195,217,229);">
<div style="margin: 0 0 10.0px 0;"><b>Gesendet:</b> Montag, 13. Juni 2022 um 11:58 Uhr<br/>
<b>Von:</b> "Gérald Tenenbaum" <a class="moz-txt-link-rfc2396E" href="mailto:gerald.ten@free.fr" onclick="parent.window.location.href='mailto:gerald.ten@free.fr'; return false;" target="_blank"><gerald.ten@free.fr></a><br/>
<b>An:</b> <a class="moz-txt-link-abbreviated" href="mailto:tex-eplain@tug.org" onclick="parent.window.location.href='mailto:tex-eplain@tug.org'; return false;" target="_blank">tex-eplain@tug.org</a><br/>
<b>Betreff:</b> [tex-eplain] colors</div>
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<div style="font-family: Lucida Sans;color: rgb(0,0,0);">
<div style="font-family: Lucida Sans;">
<div style="font-family: Lucida Sans;">Hello,<br/>
<br/>
Here is a small file that used to work but doesn't anymore:<br/>
<br/>
\input eplain<br/>
\beginpackages<br/>
\usepackage{color}<br/>
\endpackages<br/>
\long\def\red#1{{\color{red}#1}}<br/>
\red{ab}<br/>
\bye<br/>
<br/>
<br/>
The error message is:<br/>
<br/>
This is pdfTeX, Version 3.141592653-2.6-1.40.24 (TeX Live 2022) (preloaded format=pdftex)<br/>
restricted \write18 enabled.<br/>
entering extended mode<br/>
(./essai.tex (/usr/local/texlive/2022/texmf-dist/tex/eplain/eplain.tex)<br/>
(/usr/local/texlive/2022/texmf-dist/tex/plain/graphics-pln/miniltx.tex)<br/>
(/usr/local/texlive/2022/texmf-dist/tex/latex/graphics/color.sty<br/>
(/usr/local/texlive/2022/texmf-dist/tex/latex/graphics-cfg/color.cfg)<br/>
(/usr/local/texlive/2022/texmf-dist/tex/latex/graphics-def/pdftex.def)<br/>
(/usr/local/texlive/2022/texmf-dist/tex/latex/graphics/mathcolor.ltx<br/>
/usr/local/texlive/2022/texmf-dist/tex/latex/graphics/mathcolor.ltx:21: Undefined control sequence.<br/>
l.21 \ExplSyntaxOn<br/>
<br/>
Many thanks for help.<br/>
Regards,<br/>
<br/>
Gérald</div>
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