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I think that Ukrich was thinking that because word doesn’t have any control sequences it’s a contradiction of the statement on 300, but I would say that this comes down to semantics and is unlikely to be revised to change the highlighted sentence to read “…in terms of the primitive ones and character tokens”<br clear="all"><div><div class="gmail_signature" data-smartmail="gmail_signature"><br><br></div></div><br>
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<div dir="ltr" class="gmail_attr">On Dec 9, 2022 at 10:00:42, Reinhard Kotucha <<a href="mailto:reinhard.kotucha@gmx.de">reinhard.kotucha@gmx.de</a>> wrote:<br></div>
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On 2022-12-09 at 04:51:56 +0100, <a href="mailto:ud.usenetcorrespondence@web.de">ud.usenetcorrespondence@web.de</a> wrote:<br><br> > Probably this has not yet been reported.<br> > <br> > TeXbook, Chapter 3: Controlling TeX says:<br> > <br> > | About 300 of TeX’s control sequences are called primitive; these<br> > | are the low-level atomic operations that are not decomposable<br> > | into simpler functions. ***All other control sequences are <br> > | defined, ultimately, in terms of the primitive ones.*** For<br> > | example, \input is a primitive operation, but \’ and \" are not;<br> > | the latter are defined in terms of an \accent primitive.<br> > <br> > I doubt that ***all other control sequences*** are defined,<br> > ultimately, in terms of the primitive ones.<br> > <br> > For example, with<br> > <br> > \def\mymacro{word}<br> > <br> > the control sequence \mymacro is not defined in terms of "the<br> > primitive ones" at all. <br><br>\def is a primitive.<br><br>Regards,<br> Reinhard<br><br> > The control sequence \mymacro is defined in terms of explicit<br> > non-active character tokens only while explicit non-active<br> > character tokens are not considered primitives.<br> > <br> > Sincerely<br> > <br> > Ukrich Diez<br> > <br><br>-- <br>------------------------------------------------------------------<br>Reinhard Kotucha Phone: +49-511-3373112<br>Marschnerstr. 25<br>D-30167 Hannover mailto:<a href="mailto:reinhard.kotucha@gmx.de">reinhard.kotucha@gmx.de</a><br>------------------------------------------------------------------<br><br>
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