⟦81aaa9af4⟧

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\InputD{fotable.tip}
\InputD{ex-mac.tex}

\font\helv =    PS-Helvetica
\font\cour =    PS-Courier
\font\timesr =  PS-Times-Roman

\chapter{Examples}
% ================
\label{c-examples}

	In this chapter I will present examples of the usage of \PS{} fonts
in \TeX{} which were derived with the help of our programs.  I will deal
with rather straight forward applications here. More complex examples
will follow in later chapters. All the examples are composed of three
chapters stored in three separate files:
\begin{itemize}
	\item {\tt examples.tex} which is this chapter.
	\item {\tt examples2.tex} starting on \page{c-examples2}.
	\item {\tt examples3.tex} starting on \page{c-examples3}.
\end{itemize}

	The example chapters are interesting out of a variety of reasons
which will be discussed now:
\begin{enumerate}
	\item Because a large number of different fonts (especially \PS{}
		fonts) are used the Apple LaserWriter~I used at first
		was constantly running out of virtual memory when printing one of
		these chapters. I helped myself at first by using {\it
		dviselect\/} to split up the {\tt DVI} file into smaller {\tt
		DVI} files which were printed totally separately from each other.

			I then added the {\tt -z}~option to the driver. This option
		is followed by a number~$n$ where~$n$ specifies the number of
		page after which a complete reset in the printer is executed. 
		This option is explained in with the other options of the driver.

			{\tt -z~1} means of course that in effect all
		pages of a {\tt DVI} file are translated into completely
		independent \PS{} files.

			Changing to the newer LaserWriter~II improved the situation
		dramatically. I did not experiment forever with it but {\tt
		-z~12} seems to just work fine.
	\item The example chapters form the test for all the programs. The
		emphasis in those chapters is to ensure that for every option and
		every possibility to define \PS{} fonts at least one example can
		be found.  So you should print this document to test the validity
		of your software.
\end{enumerate}

The source code of this part of the document can be found in {\tt doc/examples.tex}.

\section{\protect\PS{} Font Family Helvetica}
% ===========================================
\label{s-helvetica}
	I will now present our first example of a \PS{} font used with \TeX. I
choose the \PS{} font Helvetica. The font chart of this font can be found
in \FigRef{f-chart-hel}, \page. It was generated with
the following {\tt PFD} file:

\ListVerb{PS-Helvetica.pfd}

	In most cases, unless any changes to the encoding vector are needed
or any other changes are required by the user, a simple {\tt PFD} file
like the one just presented suffices. Actually {\it pfd2tfm\/} can be started
directly without giving any {\tt PFD} file. Simply provide the name of
the {\tt AFM} file (including the file extension {\tt AFM} in this
case). In other words the instruction {\tt pfd2tfm Helvetica.afm}
would have generated the exact same font substituting a {\tt PFD} file as
listed above automatically.

	Observe that for character codes $<128$ the font table of the
\PS{} font forms a proper subset of the font table of {\tt cmr10}.

	The encoding vector chart for {\tt PS-Helvetica} can be found in
\FigRef{t-PS-Helvetica.pdr}, \page.
This figure was produced using {\tt printpdr}. Characters for
which the character code was {\bf not} taken from the {\tt AFM} file
are marked with an asterisk.

	Here is an example using {\tt PS-Helvetica}:
\begin{quote}
{\helv
	And here is some sample text based on this font. You also can print
all the fancy characters, but for some of them, you have to use the
{\cour\string\char} instruction of \TeX. So here some characters, which you
need in French: \char'322, \char'323, \char'324, \char'326.
Also ligatures are available, but in the case of this font, there is
hardly any difference between the two characters typed side by side
and using the ligature. That's it for this example.

	As you can see from the text even ligatures work properly. For
instance the input {\cour fun---well not really} generated the
following text ``fun---well not really''.
}
\end{quote}


% Font chart helvetica.
\foc{\helv}{PS-Helvetica}{f-chart-hel}
\clearpage
% Encoding vector helvetica.
\evl{PS-Helvetica}
\clearpage

\section{\protect\PS{} Fonts Times\dots}
% ======================================
\label{s-times}
	Here briefly some examples based on the \PS's Times-Roman and
Times-Italic fonts. The font chart for both of those fonts can be found
in \FigRef{f-chart-tr}, \page. The encoding vector can be
found in \FigRef{t-PS-Times-Roman.pdr}, \page.

{\timesr And now a brief example of using Times-Roman. This font has the
same encoding vector as Helvetica. And also it has ligatures, as it is
not so difficult to show. And it even works, like in ``difficult''.
As you can see also this font works nicely, and even all the dashes
are right. Here is an en-dash (yes right there it was), then you have
an em-dash as in exercise 12--34, and well---let me think: I think
there was an em-dash. Can't write em---dash although I would like to!
}

\foc{\timesr}{PS-Times-Roman}{f-chart-tr}
\clearpage
\evl{PS-Times-Roman}
\clearpage

\section{\protect\PS{} Courier Fonts}
% ===================================
\label{s-courier}
	Here now \PS's Courier font which is a fixed pitch font as you can see
from the example text below.

	The font table of this font is in \FigRef{f-chart-cour}, \page. The encoding vector for
{\tt PS-Courier} can be found in \FigRef{t-PS-Courier.pdr}, \page.

\begin{quote}
\cour\raggedright
	And here is some sample text based on the Courier font. You
also can print all the fancy characters but for some of them you have
to use the {\cour\string\char} instruction of \TeX. So here some
characters which you
need in French: \char'323, \char'324, \char'325, \char'326.
No ligatures are available in this font. Observe that I made the
layout of this font as close as possible to courier. So I have, for
instance, in this font the backslash~(~\char`\\) character loaded at
the right position etc.

\end{quote}

\foc{\cour}{PS-Courier}{f-chart-cour}
\clearpage
\evl{PS-Courier}
\clearpage

\section{Other \protect\PS{} Font Examples}
% =========================================
% The file "prcontrol.tex" is written by the Makefile!
\input prcontrol.tex
\ifnum\PrinterClass = 0
	There will be no additional fonts listed because in your setup file
``{\tt local-defs}'' you specified that you have a \PS{} printer with the
standard set of \PS{} fonts only, i.e.~only with the font families
Helvetica, Times-Roman and Courier, and the Symbol font.
\else
	\font\AvantGardeBook = PS-AvantGarde-Book
	\font\BookmanDemi    = PS-Bookman-Demi
	\font\NewCenturySchlbkRoman = PS-NewCenturySchlbk-Roman
	\font\PalatinoBold  = PS-Palatino-Bold
	\font\ZapfChanceryMediumItalic = PS-ZapfChancery-MediumItalic
	\font\ZapfDingbats = PS-ZapfDingbats

		I will present six more \PS{} font examples. Here is a list of the
	font tables:
	\begin{enumerate}
		\item AvantGarde-Book; see \FigRef{f-chart-AvantGarde-Book}, \page.
		\item Bookman-Demi; see \FigRef{f-chart-Bookman-Demi}, \page.
		\item NewCenturySchlbk-Roman; see \FigRef{f-chart-NewCenturySchlbk-Roman},
			\page.
		\item Palatino-Bold; see \FigRef{f-chart-Palatino-Bold}, \page.
		\item ZapfChancery-MediumItalic; see
			\FigRef{f-chart-ZapfChancery-MediumItalic}, \page.
		\item ZapfDingbats; see \FigRef{f-chart-ZapfDingbats}, \page.
	\end{enumerate}
				\foc{\AvantGardeBook}{PS-AvantGarde-Book}{f-chart-AvantGarde-Book}
				\clearpage
				\evl{PS-AvantGarde-Book}
				\clearpage
			 	\foc{\BookmanDemi}{PS-Bookman-Demi}{f-chart-Bookman-Demi}
				\clearpage
				\evl{PS-Bookman-Demi}
				\clearpage
				\foc{\NewCenturySchlbkRoman}{PS-NewCenturySchlbk-Roman}% 
					{f-chart-NewCenturySchlbk-Roman}
				\clearpage
				\evl{PS-NewCenturySchlbk-Roman}
				\clearpage
				\foc{\PalatinoBold}{PS-Palatino-Bold}{f-chart-Palatino-Bold}
				\clearpage
				\evl{PS-Palatino-Bold}
				\clearpage
				\foc{\ZapfChanceryMediumItalic}{PS-ZapfChancery-MediumItalic}% 
					{f-chart-ZapfChancery-MediumItalic} 
				\clearpage
				\evl{PS-ZapfChancery-MediumItalic}
				\clearpage
				\foc{\ZapfDingbats}{PS-ZapfDingbats}{f-chart-ZapfDingbats}
				\clearpage
				\evl{PS-ZapfDingbats}
				\clearpage
\fi
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