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From: Sergio Spina <sergio.am.sp...@gmail.com>
Newsgroups: comp.programming.literate
Subject: Re: [?] Re: !Undefined control sequence in a NOWEB document
Date: Thu, 30 Aug 2012 05:12:05 -0400 (EDT)
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Il giorno mercoled=EC 29 agosto 2012 22:47:09 UTC+2, Norman Ramsey ha scrit=
to:
> On Wednesday, August 29, 2012 4:43:58 PM UTC-4, Sergio Spina wrote:
>=20
> > I'm writing a TeX-noweb document.
>=20
>=20
>=20
> It may have been a long time since anyone used noweb with plain TeX and n=
ot latex.  Send me a short .nw file that exhibits the problem and I'll see =
if I can reproduce it.
>=20
>=20
>=20
>=20
>=20
> Norman

Many thanks.

Now comes a short test file (atest.nw), commands in the terminal, the deriv=
ed file doc.tex, the xetex command in the terminal, the final file doc.log =
with the error message "Undefined control sequence."

System: Linux Mint 13 Maya

file atest.nw
>-------------<

\def\title#1{{\font\zzz=3Dcmr7 scaled \magstep4
    \vbox{\hrule\bigskip\centerline{\zzz#1}\bigskip\hrule}}}

@ \title{A TEST}\vskip.5in

\centerline{\it Lorem ipsum adequesque introitat qui eiusmod loquavit.}\bre=
ak

\chapter{Introduction}
I wrote this format just for a test, taking inspiration from `[[lola.dtx]]'=
 by
John Delmonte and from `[[samantha.dtx]]' by Betty Curtis.

\section{Usage.} To load the format specify [[\input atest]] into
your document.

\chapter{The code}

<<comment>>=3D
Now comes another piece of the well-known ``Lorem Ipsum'' words flow. Lorem
ipsum est juris vinculum quod necessitate advertimus secundum nostra civita=
te
legis.

@ Almost every \TeX\ program begins with more or less the same
introductory things.
\bigskip
Version informations in a comfortable place.
<<version>>=3D
\def\version{2} \def\revision{3} \def\revisiondate{2012/08/28}

@ The sign `@' for the private macros.
<<@ catcode>>=3D
\chardef\OldAtCatCode=3D\the\catcode`@
\catcode`@=3D11

@ Messages form the format to the [[.log]] file. It's nice to let them star=
t
all on a new line.
<<@message>>=3D
\def\@message#1{{\newlinechar=3D`=A7\message{=A7ATEST.TEX : #1 ::| }}}

@ The first cry of this TeX child.
<<hello world>>=3D
\@message{Version \version.\revision\space -- revision \revisiondate}

@ Layout definitions
<<layout>>=3D
\hsize=3D6in
\vsize=3D8in
\hoffset=3D1.5in
\voffset=3D-.5in

@ That's all.
<<goodbye>>=3D
\endinput

<<atest.tex>>=3D
<<version>>
<<@ catcode>>
<<@message>>
<<hello world>>
<<layout>>
<<goodbye>>

\bye

>-------------<

Commands in the terminal
>-------------<

$ notangle -Ratest.tex atest.nw > atest.tex
$ noweave -tex -filter "elide comment" atest.nw > doc.tex

>-------------<

file doc.tex
>-------------<

\input nwmac \nwfilename{atest.nw}\nwbegindocs{0}\nwdocspar% =3D=3D=3D> thi=
s file was generated automatically by noweave --- better not edit it
\def\title#1{{\font\zzz=3Dcmr7 scaled \magstep4
    \vbox{\hrule\bigskip\centerline{\zzz#1}\bigskip\hrule}}}

\nwenddocs{}\nwbegindocs{1}\title{A TEST}\vskip.5in

\centerline{\it Lorem ipsum adequesque introitat qui eiusmod loquavit. Ite =
autem in culum facere.}\break

\chapter{Introduction}
I wrote this format just for a test, taking inspiration from `{\Tt{}lola.dt=
x\nwendquote}' by
John Delmonte and from `{\Tt{}samantha.dtx\nwendquote}' by Betty Curtis.

\section{Usage.} To load the format specify {\Tt{}{\nwbackslash}input\ ates=
t\nwendquote} into
your document.

\chapter{The code}

\nwenddocs{}%
%
%
%
%
\nwbegindocs{3}Almost every \TeX\ program begins with more or less the same
introductory things.
\bigskip
Version informations in a comfortable place.
\nwenddocs{}\nwbegincode{4}\moddef{version}\endmoddef\nwstartdeflinemarkup\=
nwenddeflinemarkup
\\def\\version\{2\} \\def\\revision\{3\} \\def\\revisiondate\{2012/08/28\}

\nwendcode{}\nwbegindocs{5}The sign `@' for the private macros.
\nwenddocs{}\nwbegincode{6}\moddef{@ catcode}\endmoddef\nwstartdeflinemarku=
p\nwenddeflinemarkup
\\chardef\\OldAtCatCode=3D\\the\\catcode`@
\\catcode`@=3D11

\nwendcode{}\nwbegindocs{7}Messages form the format to the {\Tt{}.log\nwend=
quote} file. It's nice to let them start
all on a new line.
\nwenddocs{}\nwbegincode{8}\moddef{@message}\endmoddef\nwstartdeflinemarkup=
\nwenddeflinemarkup
\\def\\@message#1\{\{\\newlinechar=3D`=A7\\message\{=A7ATEST.TEX : #1 ::| \=
}\}\}

\nwendcode{}\nwbegindocs{9}The first cry of this TeX child.
\nwenddocs{}\nwbegincode{10}\moddef{hello world}\endmoddef\nwstartdeflinema=
rkup\nwenddeflinemarkup
\\@message\{Version \\version.\\revision\\space -- revision \\revisiondate\=
}

\nwendcode{}\nwbegindocs{11}Layout definitions
\nwenddocs{}\nwbegincode{12}\moddef{layout}\endmoddef\nwstartdeflinemarkup\=
nwenddeflinemarkup
\\hsize=3D6in
\\vsize=3D8in
\\hoffset=3D1.5in
\\voffset=3D-.5in

\nwendcode{}\nwbegindocs{13}That's all.
\nwenddocs{}\nwbegincode{14}\moddef{goodbye}\endmoddef\nwstartdeflinemarkup=
\nwenddeflinemarkup
\\endinput

\nwendcode{}\nwbegincode{15}\moddef{atest.tex}\endmoddef\nwstartdeflinemark=
up\nwenddeflinemarkup
\LA{}version\RA{}
\LA{}@ catcode\RA{}
\LA{}@message\RA{}
\LA{}hello world\RA{}
\LA{}layout\RA{}
\LA{}goodbye\RA{}

\\bye
\nwendcode{}\bye

>-------------<

Command in the terminal
>-------------<

$ xetex -halt-on-error doc.tex

>-------------<

file doc.log
>-------------<

This is XeTeX, Version 3.1415926-2.4-0.9998 (TeX Live 2012) (format=3Dxetex=
 2012.7.8)  30 AUG 2012 10:43
entering extended mode
 restricted \write18 enabled.
 %&-line parsing enabled.
**doc.tex
(./doc.tex (/home/sam/texmf/tex/plain/misc/nwmac.tex
\textsize=3D\dimen16
\codehsize=3D\dimen17
\codemargin=3D\dimen18
\nwdefspace=3D\dimen19
\equivbox=3D\box16
\plusequivbox=3D\box17
\cont=3D\write0
\listlevel=3D\count28
\itemwidth=3D\dimen20
) [1
\openout0 =3D `doc.toc'.

] [Introduction]
[Usage.] [2] [The code]
! Undefined control sequence.
<argument> ...on}\endmoddef \nwstartdeflinemarkup=20
                                                  \nwenddeflinemarkup=20
\bchack #1^^M->\relax #1
                       =20
l.27 ...ef\nwstartdeflinemarkup\nwenddeflinemarkup
                                                 =20
Output written on doc.pdf (2 pages).

>-------------<

Sergio