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\def\talk#1#2{\medskip\noindent\ignorespaces{%
\def\PS{{\it P{\iteight OST\-}S{\iteight CRIPT}}}%
\def\sgml{{\iteight SGML}}%
\def\LaTeX{{\it L\kern-.36em\raise.3ex\hbox{\iteight
A}\kern-.15emT\kern-.1667em\lower.7ex\hbox{E}\kern-.125emX}}%
\it #1\/}: #2.\quad} 

\centerline{\bf Cahiers GUTenberg}
\smallskip
\leftline{\bf Summaries from Number 5, May
1990:}
\frenchspacing
\talk{Une \`ere nouvelle: \TeX~3.0}{Michael Ferguson}
3--7; This paper presents some preliminary observations on
the new capabilities of \TeX\ 3.0 and their relationship to
the current capabilities of Multilingual \TEX. The paper
discusses a simple modification that unlocks features
that give it approximately the capability of the curent
\TEX. Discusses some deficiencies of the new versions and
makes some recommendations for electronic document
exchange.

\talk{Vers l'introduction de la coleur dans
\TeX}{\hfil\break Christophe C\'erin \& Beno\^\i t Lemaire,
8--15} Colour printers have become available over the last
year. If they are destined to invade our offices, it is
advisable that \TeX\  takes into account their new
possibilities for a better computer assisted publishing
($\approx$DTP).

In this article we discuss, in the first place, colour in
general (e.g.~its specification), then, through some
examples, we try to bring out the classes of problems
which call for classes of common solutions and common
algorithms. This leads us to propose a minimal group of
primitives permitting the resolution of the following
problems:
\item{$\bullet$}action on a syntactic element (letter,
word, phrase, paragraph\dots). We distinguish two sub
classes: 
\itemitem{$\triangleright$}the simple use of constructions
of the type |\begincolor|\dots|\endcolor|;
\itemitem{$\triangleright$}more complex actions where the
colour of a letter depends on that of its neighbours, or,
more generally, parameters specifying the interaction of
colours.
\item{$\bullet$}action on a graphic entity like a
rule(s), or elements from the picture environment.

\noindent
The implementation of the commands is through \PS\
|\special|\/s used with Tom Rokicki's |dvips| driver. The
macros were written to be used with \LaTeX. The printer
employed is the QMS Color\-Script.

\talk{D\'ebuter avec \LaTeX}{Jeannine Grimault \& Agn\`es
Isambard, 16--19}
This article summarises the problems encountered by
non-computer science beginners who wanted to make \LaTeX\
into a professional publishing tool. As ``non computer
scientists'' some of the ideas given here require the
indulgence of experienced \TeX ers. To begin with, we try
to summarise our questions and express our hopes, and
lastly we present ways to tailor the Mac to make \Textures\
even easier to use.
 

\talk{Pourquoi \TeX? Et pourquoi pas?\dots}{\hfil
Maurice\break Laugier, 20--25}This article presents several
examples of work typeset commercially with \TeX\ by
Imprimerie Louis-Jean, indicating the range and ease with
which \TeX\ sets such material. The examples range through
Greek, Russian and `linguistic' texts, to chemical
formul\ae\ and database publishing. It also mentions
several programs which can convert wordprocessed material
to \TeX.



\talk{Sur les codes \`a barre EAN}{Laurent Guillop\'e,
26--29} This article describes the structure of the
barcodes of the EAN family (an EAN13 code is often printed
nowadays on the last cover page of a book) and a set of
\TeX\ macros used to realise them. It ends with some
remarks on the practical implementation of these macros.


\talk{Typographie de programmes Ada}{P Naudin \& C Quitte,
30--40}In this article, we introduce a tool for typesetting
programs written in a programming language with
keywords. We propose a style derived from the one used by
the {\tt WEB} system to typeset Pascal programs. The
strength of the set of macros that really do the job lies
in the internal mechanisms of \TeX\ in order to recognize
the keywords, and thus no complex automated definition is
required. This way the process is reasonably efficient,
in contrast with the horrible slowness of a
classical method written with \TeX.


\talk{De la construction de diagrammes}{Francis Borceux,
41--48} The {\tt diagram} style macros allow the automatic
typesetting of diagrams made up of various types of arrows
joining ``vertices'' which take the form of mathematical
expressions. The program automatically calculates the
length and position of each element. The use is able to
impose a convenient scale factor on each diagram.

\talk{Typesetting Bridge via \TeX}{Kees van der Laan,
49--61} Enhanced plain \TeX\ macros and a bidding
environment for typesetting bridge card distributions and
bidding sequences are given. Macros for annotated printing
of the course of the play are provided. Examples of use are
given. (see also TUGboat 10(1), 113--116 \& 11(2),
265--276).


\talk{Musique en \TeX: \'ecriture
de musique polyphonique ou instrumentale en ``plain
\TeX''}{Daniel Taupin, 62--73}
The possibilities which \TeX\ offers in combining a wide
range of symbols and horizontal and vertical lines,
together with its versatility as a procedural language
has often encouraged musicians in the temptation to use
\TeX\ to typeset music.

We have been unable to resist this temptation and present
a set of macros which allow the setting of polyphonic or
orchestral music for between one and nine  instruments (or
voices), each able to have its score
written in a number of staves varying from zero (for
example for the words of a song) up to four.

The difficulties are of two kinds: on the one hand from
the absence of musical symbols in the standard \TeX\
fonts (notably clefs and beams), and on the other hand
the fact that polyphonic or orchestral music is not just
a linear expression like monodic scores, but is two
dimensional.

The first problem has been resolved partly by using the
semi-graphical fonts ({\tt linew10}, {\tt circlew10}),
giving results which are aesthetically questionable, but
are portable and readable, and partly by using special
music fonts ({\tt musicx16}, {\tt slur16} and {\tt
beam16}). The second problem is the essential part of our
work and we are able to offer widest range of
possibilities to the composer or transcriber.

Several examples are included.


\talk{\TeX\ and SGML}{Kees van der Laan, 74--81}
Terse text outlining what SGML is and is not, what \TeX\
is, and their inter-relationship. Contains examples of
the same tasks (a letter, bridge card deal and some maths)
expressed in \LaTeX\ and SGML.

\nonfrenchspacing
\author{\mwc}