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</div>
<div class="chapter">
<div class="titlepage">
<div>
<h2 class="title"><a id="chap.freetex"
name="chap.freetex"></a>Chapter 13. Non-commercial
Environments</h2>
</div>
<div>
<p class="releaseinfo">$Revision: 1.1 $</p>
</div>
<div>
<p class="pubdate">$Date: 2002/08/23 14:31:13 $</p>
</div>
<hr class="component-separator" />
</div>
<p><a id="id2920434" class="indexterm"
name="id2920434"></a>This chapter offers an overview of
several common free and shareware TeX systems. If you notice
any conflicts between the information in this chapter and the
documentation that comes with the software, please consider
the documentation to be more accurate and up-to-date. I've
attempted to provide hints and practical suggestions, but
software installation is largely dependent on your system
configuration and the way you want to use TeX.</p>
<div class="section">
<div class="titlepage">
<div>
<h2 class="title" style="clear: both"><a id="free.web"
name="free.web"></a>Web2C</h2>
</div>
</div>
<p><a id="id2920341" class="indexterm"
name="id2920341"></a><a id="id2920347" class="indexterm"
name="id2920347"></a> The official sources for all of the
standard TeX programs are distributed in a format known as
\web.<sup>[<a id="id2920364" name="id2920364"
href="#ftn.id2920364">122</a>]</sup> \web is an
implementation of a programming style known as
“literate programming.” One central tenet of
literate programming is that source code and documentation
should be written in parallel. Literate programming
enforces this tenet by combining the two in a single file.
\web source files contain a mixture of source code and
documentation.</p>
<p>In \web files, the documentation is written in TeX, and
the source code is written in Pascal. (Other literate
programming environments use different documentation and
programming languages.) To print the documentation, a
special preprocessor called <b>weave</b><a id="id2920395"
class="indexterm" name="id2920395"></a> transforms the \web
source into a TeX document that can be formatted and
printed. Another preprocessor, called <b>tangle</b><a
id="id2924413" class="indexterm" name="id2924413"></a>,
transforms the \web source into a Pascal program that can
be compiled and executed.</p>
<p>In practice, it is far more likely that you have access
to a C compiler than to a Pascal compiler. This is where
<b>Web2C</b> comes in. <b>Web2C</b> is a special-purpose
Pascal-to-C translator that makes it possible to compile
and build the TeX sources in most unix environments (and
probably many other environments as well).</p>
<p>Karl Berry<a id="id2924450" class="indexterm"
name="id2924450"></a> maintains the <b>Web2C</b>
distribution. You can retrieve it from the CTAN archives in
the directory <tt>systems/unix/web2c</tt>.</p>
<p>Preparing to build TeX with the <b>Web2C</b>
distribution is very straightforward. Unpack the archive
files, read the file named <tt>README</tt>, and follow the
instructions in the file named <tt>INSTALL</tt>. Many
people have built TeX using these sources. If you have
difficulty, readers of the <tt>Info-TeX</tt> mailing list<a
id="id2924515" class="indexterm" name="id2924515"></a> or
the <tt>comp.text.tex</tt> newsgroup<a id="id2924539"
class="indexterm" name="id2924539"></a> will almost
certainly be able to help.</p>
<p>In my experience, there are only two parts of the
installation that are likely to cause any difficulty:
compiling <tt>tangleboot.c</tt> and building the X Windows
support in MetaFont.</p>
<p>Because <b>tangle</b> is written in \web, there is an
obvious bootstrapping problem (how do you <b>tangle</b>
<tt>tangle.web</tt> in order to compile <b>tangle</b>?).
The <b>Web2C</b> distribution includes a small C program
called <tt>tangleboot.c</tt><a id="id2924617"
class="indexterm" name="id2924617"></a>, which overcomes
this hurdle. It's possible that getting
<tt>tangleboot.c</tt> to compile on your machine may
require some tinkering. I had this problem on one machine
with one release of <b>Web2C</b>. Subsequent releases of
<b>Web2C</b> seem to have corrected this problem (in my
case, at least).</p>
<p>Compiling X Window support for MetaFont has regularly
been a thornier problem. If you are not comfortable
programming in C, I cannot suggest a simple way to correct
these difficulties in the general case. (However, asking
for help in the appropriate newsgroups is very likely to
produce a solution for any particular problem.)</p>
<p>The most common errors that I've encountered in building
the X Windows support for MetaFont are conflicting
prototypes and type definitions. My solution to these
problems, inelegant though it may be, has generally been to
“correct” or remove the offending declarations
from the MetaFont sources. (Note: the X Window support is
written directly in C, not \web, so it is considerably
easier to edit.) In my experience, this has always been
successful, but your mileage may vary.</p>
</div>
<div class="section">
<div class="titlepage">
<div>
<h2 class="title" style="clear: both"><a
id="sec.emtex.testinstall"
name="sec.emtex.testinstall"></a>emTeX</h2>
</div>
</div>
<p><a id="id2924692" class="indexterm"
name="id2924692"></a><a id="id2924702" class="indexterm"
name="id2924702"></a> The emTeX distribution is a very
complete, free distribution of TeX for MS-DOS and OS/2
systems. emTeX will run on any 80x86 processor, although
some of the larger, faster executables require at least a
386. There is no single right way to install TeX, so what
follows is only one possible installation. This
installation uses the default directories and assumes a
single-user environment. Installing emTeX in a network
environment is mentioned briefly in “<span
class="emphasis"><em><a href="ch13.html#sec.netemtex"
title="Installing emTeX on a Network">the section called
“Installing emTeX on a
Network”</a></em></span>,” later in this
chapter. Incorporating the more recent, beta test versions
of emTeX is described in the section called \linebreak</p>
<p>“<a href="ch13.html#sec.betaemtex"
title="Environment variables">the section called
“Environment variables”</a>.” emTeX is
available on CTAN in the directory
<tt>systems/msdos/emtex</tt>.</p>
<p>On the whole, the installation instructions for emTeX
are provided in the distribution. Begin by reading the
English or German versions of the documentation provided.
Additionally, you should read the DVI driver documentation
at least once. (It's quite long, and you may not remember
all of it after a single reading, but at least you'll have
a feel for what can be done.)</p>
<p>Table <a href="ch13.html#tab.emtexfilesum"
title="Table 13.1. Summary of the \protect\emTeX Distribution">
Table 13.1</a> summarizes the files in the
distribution. The standard emTeX distribution occupies six
high-density floppy disks. A complete installation requires
more than 12 megabytes of storage without fonts. You must
also get a set of fonts (available in font library format
for emTeX) or set up automatic font generation.</p>
<div class="table">
<a id="tab.emtexfilesum" name="tab.emtexfilesum"></a>
<p class="title"><b>Table 13.1. Summary of the
\protect\emTeX Distribution</b></p>
<table
summary="Summary of the \protect\emTeX Distribution"
border="1">
<colgroup>
<col align="left" />
<col align="left" />
<col align="right" />
<col align="right" />
</colgroup>
<thead>
<tr>
<th align="left"> </th>
<th align="left"> </th>
<th align="right"> </th>
<th align="right">\multicolumn{1}{l}{\bf
Expanded}</th>
</tr>
</thead>
<tbody>
<tr>
<td align="left"><span>\bf File</span></td>
<td align="left">\bf Abbreviated Contents</td>
<td align="right">\multicolumn{1}{l}{\bf Size}</td>
<td align="right">\multicolumn{1}{|l}{\bf
Size}</td>
</tr>
<tr>
<td align="left">\it *.eng</td>
<td align="left">English documentation</td>
<td align="right">125Kb</td>
<td align="right">125Kb</td>
</tr>
<tr>
<td align="left">\it{}*.ger</td>
<td align="left">German documentation</td>
<td align="right">140Kb</td>
<td align="right">140Kb</td>
</tr>
<tr>
<td align="left">\it{}*.exe</td>
<td align="left">Delete, remove, pkunzip</td>
<td align="right">227Kb</td>
<td align="right">227Kb</td>
</tr>
<tr>
<td align="left">\it tex1.zip</td>
<td align="left">TeX executables, <tt>TFM</tt>s,
inputs</td>
<td align="right">368Kb</td>
<td align="right">645Kb</td>
</tr>
<tr>
<td align="left">\it tex2.zip</td>
<td align="left">Plain formats, more
<tt>TFM</tt>s</td>
<td align="right">262Kb</td>
<td align="right">403Kb</td>
</tr>
<tr>
<td align="left">\it blatex.zip</td>
<td align="left">Big TeX LaTeX format</td>
<td align="right">227Kb</td>
<td align="right">494Kb</td>
</tr>
<tr>
<td align="left">\it latex1.zip</td>
<td align="left">Documentation and formats</td>
<td align="right">243Kb</td>
<td align="right">393Kb</td>
</tr>
<tr>
<td align="left">\it latex2.zip</td>
<td align="left">LaTeX styles and
<tt>TFM</tt>s</td>
<td align="right">233Kb</td>
<td align="right">705Kb</td>
</tr>
<tr>
<td align="left">\it latexdoc.zip</td>
<td align="left">LaTeX style documentation</td>
<td align="right">110Kb</td>
<td align="right">315Kb</td>
</tr>
<tr>
<td align="left">\it makeindx.zip</td>
<td align="left"><b>MakeIndex</b></td>
<td align="right">52Kb</td>
<td align="right">152Kb</td>
</tr>
<tr>
<td align="left">\it pictex.zip</td>
<td align="left">PiCTeX macros</td>
<td align="right">43Kb</td>
<td align="right">144Kb</td>
</tr>
<tr>
<td align="left">\it texware.zip</td>
<td align="left"><b>texchk</b>, <b>texconv</b>,
<b>maketcp</b>,</td>
<td align="right">265Kb</td>
<td align="right">433Kb</td>
</tr>
<tr>
<td align="left"> </td>
<td align="left">TeXware</td>
<td class="auto-generated"> </td>
<td class="auto-generated"> </td>
</tr>
<tr>
<td align="left">\it dvidrv1.zip</td>
<td align="left">Driver configuration, batch,</td>
<td align="right">119Kb</td>
<td align="right">370Kb</td>
</tr>
<tr>
<td align="left">\it</td>
<td align="left">and setup files</td>
<td class="auto-generated"> </td>
<td class="auto-generated"> </td>
</tr>
<tr>
<td align="left">\it dvidrv2.zip</td>
<td align="left">Driver executables</td>
<td align="right">345Kb</td>
<td align="right">551Kb</td>
</tr>
<tr>
<td align="left">\it dvidrv3.zip</td>
<td align="left">Preview executables</td>
<td align="right">293Kb</td>
<td align="right">506Kb</td>
</tr>
<tr>
<td align="left">\it texcad.zip</td>
<td align="left">TeXCad</td>
<td align="right">118Kb</td>
<td align="right">236Kb</td>
</tr>
<tr>
<td align="left">\it bmf1.zip</td>
<td align="left">Big MetaFont</td>
<td align="right">261Kb</td>
<td align="right">472Kb</td>
</tr>
<tr>
<td align="left">\it mf1.zip</td>
<td align="left">MetaFont executables</td>
<td align="right">245Kb</td>
<td align="right">398Kb</td>
</tr>
<tr>
<td align="left">\it mf2.zip</td>
<td align="left">MetaFont sources,</td>
<td align="right">337Kb</td>
<td align="right">613Kb</td>
</tr>
<tr>
<td align="left">\it</td>
<td align="left">OS/2 executable</td>
<td class="auto-generated"> </td>
<td class="auto-generated"> </td>
</tr>
<tr>
<td align="left">\it mf3.zip</td>
<td align="left">MetaFont sources</td>
<td align="right">273Kb</td>
<td align="right">768Kb</td>
</tr>
<tr>
<td align="left">\it mfware1.zip</td>
<td align="left"><tt>GF</tt> tools, <tt>PK</tt>
tools</td>
<td align="right">320Kb</td>
<td align="right">504Kb</td>
</tr>
<tr>
<td align="left">\it bibtex.zip</td>
<td align="left">BibTeX</td>
<td align="right">117Kb</td>
<td align="right">319Kb</td>
</tr>
<tr>
<td align="left">\it bmf2.zip</td>
<td align="left">OS/2 executable,</td>
<td align="right">266Kb</td>
<td align="right">564Kb</td>
</tr>
<tr>
<td align="left"> </td>
<td align="left">Big MetaFont bases</td>
<td class="auto-generated"> </td>
<td class="auto-generated"> </td>
</tr>
<tr>
<td align="left">\it btex1.zip</td>
<td align="left">Big TeX executables</td>
<td align="right">259Kb</td>
<td align="right">447Kb</td>
</tr>
<tr>
<td align="left">\it btex2.zip</td>
<td align="left">Big TeX Plain format</td>
<td align="right">269Kb</td>
<td align="right">533Kb</td>
</tr>
<tr>
<td align="left">\it emsy.zip</td>
<td align="left">Special fonts from emTeX</td>
<td align="right">8Kb</td>
<td align="right">11Kb</td>
</tr>
<tr>
<td align="left">\it mfware2.zip</td>
<td align="left"><b>MFjob</b>, some more
inputs</td>
<td align="right">138Kb</td>
<td align="right">230Kb</td>
</tr>
<tr>
<td align="left">\it misc_mf.zip</td>
<td align="left">Miscellaneous inputs</td>
<td align="right">36Kb</td>
<td align="right">130Kb</td>
</tr>
<tr>
<td align="left">\it pkedit.zip</td>
<td align="left"><b>PKEdit</b></td>
<td align="right">51Kb</td>
<td align="right">97Kb</td>
</tr>
<tr>
<td align="left">\it dvidrvma.zip</td>
<td align="left">DVI driver manual</td>
<td align="right">178Kb</td>
<td align="right">494Kb</td>
</tr>
<tr>
<td align="left">\it web.zip</td>
<td align="left">\web tools</td>
<td align="right">128Kb</td>
<td align="right">252Kb</td>
</tr>
<tr>
<td align="left">\it g*.zip</td>
<td align="left">German versions of TeX</td>
<td align="right">800Kb</td>
<td align="right">1614Kb</td>
</tr>
</tbody>
</table>
</div>
<p>For simplicity, the discussion that follows assumes that
you have enough disk space to install the entire 12Mb
distribution. If you can't get that much space (even
temporarily), you can perform the steps discussed in the
section “<a href="ch13.html#sec.emtex.smaller"
title="Installing Fonts">the section called
“Installing Fonts”</a>” as you
install.</p>
<div class="section">
<div class="titlepage">
<div>
<h3 class="title"><a id="id2925718"
name="id2925718"></a>Where to Start</h3>
</div>
</div>
<p>Begin by reading the English (<tt>*.eng</tt>) or
German (<tt>*.ger</tt>) documentation files on the first
disk. Where there is disagreement between this book and
those files, believe the files---especially if a new
version of emTeX has been released.</p>
</div>
<div class="section">
<div class="titlepage">
<div>
<h3 class="title"><a id="id2925747"
name="id2925747"></a>Unpacking the Archives</h3>
</div>
</div>
<p>The emTeX<a id="id2925756" class="indexterm"
name="id2925756"></a> distribution is a collection of
<tt>ZIP</tt> files spread over six disks. You must
install these files into your hard drive. If you have
more than one hard disk, you may install emTeX on any
drive you choose. Select one with more than 12Mb of free
space, at first. You can copy the files onto another
drive after you've deleted things that you don't
need.</p>
<p>All of the emTeX files are installed in a subdirectory
tree rooted at <tt>emtex</tt>. If you absolutely must use
a different subdirectory tree, unpack each archive file
into a temporary directory and then copy the files into
the subtree you want to use. You will have to do much
more extensive customization of the batch files and
configuration files before emTeX will work. That sort of
customization isn't described here in detail.</p>
<p>Make the root directory of the hard disk that you wish
to install onto the current directory, and then use the
<b>pkunzip</b><a id="id2925817" class="indexterm"
name="id2925817"></a> program distributed on the first
disk, or any later version of <b>pkunzip</b>, to unpack
each of the archive files. You can also use the
<b>Info-Zip</b><a id="id2925862" class="indexterm"
name="id2925862"></a> version of <b>unzip</b> (version
5.0 or later) to unpack the archives. If you do not want
the German versions of the TeX macro files, do not bother
to unpack the <tt>lkurz.zip</tt> or <tt>g*.zip</tt> files
on disk six.</p>
<p>After you have unpacked the files, you will have a
directory tree rooted at <tt>\bs EMTEX</tt> containing
about 12Mb of files and the following additional
directories: <tt>bibinput</tt>, <tt>bmfbases</tt>,
<tt>btexfmts</tt>, <tt>doc</tt>, <tt>mfbases</tt>,
<tt>mfinput</tt>, <tt>MFjob</tt>, <tt>remove</tt>,
<tt>texfmts</tt>, <tt>texinput</tt>, and
<tt>tfm</tt>.</p>
</div>
<div class="section">
<div class="titlepage">
<div>
<h3 class="title"><a id="id2925984"
name="id2925984"></a>Setting Up the Environment</h3>
</div>
</div>
<a id="id2925990" class="indexterm" name="id2925990"></a>
<p>A lot of information about where and how things are
installed for emTeX is stored in the \glo{environment}.
If you are unfamiliar with the DOS or OS/2 environment,
consult your operating system reference for more details.
In brief, the environment<a id="id2926007"
class="indexterm" name="id2926007"></a> is a collection
of named strings. For example, your <tt>PATH</tt> is in
the environment.</p>
<p>The emTeX distribution includes a batch file called
<tt>set-tex</tt><a id="id2926042" class="indexterm"
name="id2926042"></a>, which sets all of the environment
variables that emTeX uses. Edit this file and change all
references to C: to the drive where you installed emTeX.
If you installed emTeX on drive C:, you needn't change
anything. The section “<a
href="ch13.html#sec.emtex.basiccust"
title="Deleting extra documentation">the section called
“Deleting extra documentation”</a>”
later in this chapter describes the variables used by
emTeX in greater detail.</p>
<p>If you are using MS-DOS and haven't already made the
environment larger than its default size, you may need to
do so in order to use emTeX. Insert the following
command, or something like it, in your
<tt>CONFIG.SYS</tt> file:</p>
<pre class="screen">
SHELL=C:\COMMAND.COM /P /E:1024
</pre>
<p>This is very system-dependent. You will have to use
different settings if you keep <tt>COMMAND.COM</tt> in a
subdirectory or if you use a different command
processor.</p>
</div>
<div class="section">
<div class="titlepage">
<div>
<h3 class="title"><a id="id2926107"
name="id2926107"></a>Testing the Installation</h3>
</div>
</div>
<p><a id="id2926114" class="indexterm"
name="id2926114"></a>After you have set up the
environment, make the <tt>emtex</tt> directory the
current directory and test TeX by typing:</p>
<div class="informalexample">
<pre class="screen">
C:\ttbackslash{}EMTEX>{\bf tex}
This is emTeX, Version 3.0 [3a] (no format preloaded)
**{\bf \ttbackslash{}relax}
*{\bf This is a test}
*{\bf \ttbackslash{}bye}
[1]
Output written on texput.dvi (1 page, 224 bytes).
Transcript written on texput.log.
</pre>
</div>
<p>This will produce a small <tt>DVI</tt> file called
<tt>texput.dvi</tt><a id="id2926173" class="indexterm"
name="id2926173"></a>. Keep this file; you can use it in
a few minutes to test the previewer.</p>
<p>To test LaTeX, enter the command:</p>
<pre class="screen">
\$ <span class="bold"><b>tex &lplain testpage</b></span>
</pre>
<p>See the section “<a
href="ch03.html#sec.runtex.cmdcautions"
title="Command-line Options">the section called
“Command-line Options”</a>” in
Chapter <a href="ch03.html"
title="Chapter 3. Running TeX">Chapter 3</a>,
<span class="emphasis"><em><a href="ch03.html"
title="Chapter 3. Running TeX">Chapter 3</a></em></span>,
for an explanation of some potential problems with using
the ampersand (&) character on the command line.</p>
</div>
<div class="section">
<div class="titlepage">
<div>
<h3 class="title"><a id="sec.emtex.smaller"
name="sec.emtex.smaller"></a>Installing Fonts</h3>
</div>
</div>
<p><a id="id2926254" class="indexterm"
name="id2926254"></a><a id="id2926267" class="indexterm"
name="id2926267"></a>There are several sets of fonts
available for emTeX. You should select the set that is
appropriate for your printer. They are summarized in
Table <a href="ch13.html#tab.emtex.fontlibs"
title="Table 13.2. Fonts Libraries Available for \protect\emTeX on CTAN">
Table 13.2</a>. The CTAN directory
<tt>systems/msdos/emtex</tt> contains the libraries or
disks of libraries.</p>
<div class="table">
<a id="tab.emtex.fontlibs"
name="tab.emtex.fontlibs"></a>
<p class="title"><b>Table 13.2. Fonts
Libraries Available for \protect\emTeX on CTAN</b></p>
<table
summary="Fonts Libraries Available for \protect\emTeX on CTAN"
border="1">
<colgroup>
<col align="left" />
<col align="left" />
<col align="left" />
</colgroup>
<thead>
<tr>
<th align="left">\bf CTAN Directory</th>
<th align="left">\bf Resolution</th>
<th align="left">\bf Description</th>
</tr>
</thead>
<tbody>
<tr>
<td align="left">\it fx_\,fonts</td>
<td align="left">240x216</td>
<td align="left">Epson FX series printers, Tandy
DMP-130 printer</td>
</tr>
<tr>
<td align="left">\it fx_med_\,fonts</td>
<td align="left">240x144</td>
<td align="left">Epson FX series (for Windows
drivers)</td>
</tr>
<tr>
<td align="left">\it ito_\,fonts</td>
<td align="left">160x144</td>
<td align="left">C. ITOH 8510A printers</td>
</tr>
<tr>
<td align="left">\it lj_\,fonts</td>
<td align="left">300x300</td>
<td align="left">300dpi Laser printers</td>
</tr>
<tr>
<td align="left">\it p6h_\,fonts</td>
<td align="left">360x360</td>
<td align="left">Epson LQ series, NEC P6 \</td>
<td>P7, IBM Proprinter, and Panasonic KX-P1124
printers</td>
</tr>
<tr>
<td align="left">\it p6m_\,fonts</td>
<td align="left">360x180</td>
<td align="left">Epson LQ series, NEC P6 \</td>
<td>P7, IBM Proprinter, and Panasonic KX-P1124
printers</td>
</tr>
<tr>
<td align="left">\it p6l_\,fonts</td>
<td align="left">180x180</td>
<td align="left">Epson LQ series, NEC P6 \</td>
<td>P7, IBM Proprinter and Panasonic KX-P1124
printers</td>
</tr>
<tr>
<td align="left">\it psfonts</td>
<td align="left">300x300</td>
<td align="left">Standard 35 PostScript
fonts</td>
<td class="auto-generated"> </td>
</tr>
</tbody>
</table>
</div>
<p>Not every font set is appropriate for every model of
the series mentioned. If your printer isn't mentioned,
use the <b>dvidot</b><a id="id2926534" class="indexterm"
name="id2926534"></a> program included with emTeX to
generate an appropriate configuration file. Select the
font set with the same resolution as your printer.</p>
<p>The PostScript fonts included in the
<tt>psfonts</tt><a id="id2926555" class="indexterm"
name="id2926555"></a> libraries are suited primarily for
previewing. The quality of many of the fonts is
substandard. (They were generated from unhinted outlines
with <b>Ghostscript</b><a id="id2926572"
class="indexterm" name="id2926572"></a>.) A font
substitution file is provided for 300dpi, 180dpi, and
360dpi printers.</p>
<p>Once you have retrieved the font libraries that you
need, unpack them (if they are in <tt>ZIP</tt> archives)
and place the <tt>FLI</tt> files in the <tt>\bs
TEXFONTS</tt> directory of the drive where you installed
emTeX. The amount of disk space required depends on the
font set that you install. It can be more than 5.5
megabytes. The section called “<a
href="ch13.html#sec.emtex.autofont"
title="Running emTeX 386 in Windows">the section called
“Running emTeX 386 in Windows”</a>,”
later in this chapter, provides an overview of automatic
font generation under emTeX. This can save a considerable
amount of disk space.</p>
<div class="section">
<div class="titlepage">
<div>
<h4 class="title"><a id="id2926632"
name="id2926632"></a>Testing font installation</h4>
</div>
</div>
<p>After you have installed a font set, you should be
able to preview and print TeX documents. If you
followed the instructions in “<a
href="ch13.html#sec.emtex.testinstall"
title="emTeX">the section called
“emTeX”</a>,” earlier in this
chapter, you have two <tt>DVI</tt> files in your
<tt>\bs EMTEX</tt> directory.</p>
<p>First, figure out which configuration file is
appropriate for your installation. The table near the
top of <tt>dvidrv.doc</tt> in the emTeX documentation
directory should help you determine which one is
appropriate.</p>
<p>The default configuration file for previewing is the
LaserJet configuration. If you installed the LaserJet
fonts (<tt>lj\ttunder*.fli</tt>), you do not have to
change the previewer. Otherwise, edit the preview batch
file (<tt>v.bat</tt> for MS-DOS systems and
<tt>v.cmd</tt> for OS/2 systems) and change the
configuration file. The preview batch file looks like
this:</p>
<pre class="screen">
@echo off
dviscr @lj.cnf /ocr=1 /fl=-1
</pre>
<p>The configuration file name is <tt>lj.cnf</tt>. If,
for example, you are using the Epson FX series printer
fonts, you would change this to <tt>fx.cnf</tt>:</p>
<pre class="screen">
@echo off
dviscr @fx.cnf /ocr=1 /fl=-1
</pre>
<p>Now type <span class="bold"><b>v texput</b></span>
to preview the test file. Under OS/2, you should do
this from a full-screen session, not a windowed
session. You can type <span class="bold"><b>v
testpage</b></span> to preview the LaTeX test page, if
you created it.</p>
</div>
</div>
<div class="section">
<div class="titlepage">
<div>
<h3 class="title"><a id="id2926788"
name="id2926788"></a>Making emTeX Smaller</h3>
</div>
</div>
<p><a id="id2926796" class="indexterm"
name="id2926796"></a>The complete distribution of emTeX
is much larger than the practical requirements. This
section discusses the pros and cons of deleting (or at
least archiving) parts of the emTeX distribution.</p>
<div class="section">
<div class="titlepage">
<div>
<h4 class="title"><a id="sec.emtex.basiccust"
name="sec.emtex.basiccust"></a>Deleting extra
documentation</h4>
</div>
</div>
<p>The <tt>\bs emtex\bs doc</tt> directory contains two
complete sets of documentation, one in English and the
other in German. Delete the set that you do not need.
This will save about 500Kb.</p>
</div>
<div class="section">
<div class="titlepage">
<div>
<h4 class="title"><a id="id2926842"
name="id2926842"></a>Deleting extra
executables</h4>
</div>
</div>
<p>There are six versions of the TeX and MetaFont
executables in the emTeX distribution. You can probably
delete at least four from each. Follow these
guidelines:</p>
<div class="itemizedlist">
<ul type="disc">
<li>
<p>If you have a 80286 or larger processor,
delete the non-286 versions: <tt>btex.exe</tt>,
<tt>tex.exe</tt>, <tt>bmf.exe</tt>, and
<tt>mf.exe</tt>.</p>
</li>
<li>
<p>If you do not have OS/2, delete the OS/2
versions: <tt>btexp.exe</tt>, <tt>texp.exe</tt>,
<tt>bmfp.exe</tt>, and <tt>mfp.exe</tt>.
Conversely, if you have OS/2 and you are
satisfied that you will never want to run TeX or
MetaFont under DOS or Windows, delete the
non-OS/2 versions: <tt>btex286.exe</tt>,
<tt>tex286.exe</tt>, <tt>bmf286.exe</tt>,
<tt>mf286.exe</tt>, and the non-286 versions
listed above. If you need both, you'll have to
keep both around, of course.</p>
</li>
<li>
<p>Finally, if disk space is at a premium and/or
you have a fast computer, you may choose to
delete the small versions of TeX and MetaFont.
The small versions are faster than the big
versions, but large or complex documents and
fonts may require the big versions, so don't
delete them. If you want to delete the small
versions, delete <tt>tex.exe</tt>,
<tt>tex286.exe</tt>, <tt>mf.exe</tt>,
<tt>mf286.exe</tt>, <tt>texp.exe</tt>, and
<tt>mfp.exe</tt>. In this case you must keep at
least one of <tt>btex.exe</tt>,
<tt>btex286.exe</tt>, and <tt>btexp.exe</tt>
depending on your environment. Similarly, you
must keep at least one of the big \MF{}s. If
you've decided to delete the small versions, you
can also delete two directories:
<tt>emtex{\bs}mfbases</tt> and
<tt>emtex{\bs}texfmts</tt>. These contain the
format files and base files for the small
versions of TeX and MetaFont.</p>
</li>
</ul>
</div>
<p>Suppose that you have a 80386 computer running
MS-DOS (not OS/2) and you are willing to sacrifice the
speed of the small versions of TeX and MetaFont. You
would keep the <tt>btex286.exe</tt> and
<tt>bmf286.exe</tt> executables and delete the rest
plus the formats and bases that you don't need, saving
2704Kb. You can save an equivalent amount of space by
deleting the big 80286 versions and keeping the big
non-286 versions, or by deleting all of the non-OS/2
versions, depending on your environment.</p>
<p>Table <a href="ch13.html#tab.emtexotherex"
title="Table 13.3. Other \protect\emTeX Executables">
Table 13.3</a> summarizes the other executables in
the emTeX distribution. This will help you decide which
programs you need to keep. Programs that you don't feel
you need should probably be stored in archive files,
possibly on diskettes, in case you change your
mind.</p>
<div class="table">
<a id="tab.emtexotherex" name="tab.emtexotherex"></a>
<p class="title"><b>Table 13.3. Other
\protect\emTeX Executables</b></p>
<table summary="Other \protect\emTeX Executables"
border="1">
<colgroup>
<col align="left" />
<col align="right" />
<col align="left" />
</colgroup>
<thead>
<tr>
<th align="left">\bf Program</th>
<th align="right">\multicolumn{1}{|l|}{\bf
Size}</th>
<th align="left">\bf Description</th>
</tr>
</thead>
<tbody>
<tr>
<td align="left">\it ask.exe</td>
<td align="right">6Kb</td>
<td align="left">Prompts user in batch file,
only used by gh.bat</td>
</tr>
<tr>
<td align="left">\it bibtex.exe</td>
<td align="right">94Kb</td>
<td align="left">BibTeX</td>
</tr>
<tr>
<td align="left">\it chtopx.exe</td>
<td align="right">39Kb</td>
<td align="left">Obsolete: converts
<tt>CHR</tt> files to <tt>PXL</tt> format</td>
</tr>
<tr>
<td align="left">\it pxtoch.exe</td>
<td align="right">40Kb</td>
<td align="left">Obsolete: converts
<tt>PXL</tt> files to <tt>CHR</tt> format</td>
</tr>
<tr>
<td align="left">\it pxtopk.exe</td>
<td align="right">49Kb</td>
<td align="left">Obsolete: converts
<tt>PXL</tt> files to <tt>PK</tt> format</td>
</tr>
<tr>
<td align="left">\it dvidot.exe</td>
<td align="right">129Kb</td>
<td align="left">Dot matrix printer driver</td>
</tr>
<tr>
<td align="left">\it dvihplj.exe</td>
<td align="right">134Kb</td>
<td align="left">HP LaserJet printer
driver</td>
</tr>
<tr>
<td align="left">\it makedot.exe</td>
<td align="right">54Kb</td>
<td align="left">Updates dot matrix printer
parameters</td>
</tr>
<tr>
<td align="left">\it dvimsp.exe</td>
<td align="right">128Kb</td>
<td align="left">Converts <tt>DVI</tt> files
into graphic images</td>
</tr>
<tr>
<td align="left">\it fontlib.exe</td>
<td align="right">67Kb</td>
<td align="left">Font library management</td>
</tr>
<tr>
<td align="left">\it maketcp.exe</td>
<td align="right">28Kb</td>
<td align="left">Change the TeX code page</td>
</tr>
<tr>
<td align="left">\it MFjob.exe</td>
<td align="right">51Kb</td>
<td align="left">MetaFont driver</td>
</tr>
<tr>
<td align="left">\it pcltomsp.exe</td>
<td align="right">56Kb</td>
<td align="left">Converts HP LaserJet graphics
into <tt>MSP</tt> or <tt>PCX</tt> format</td>
</tr>
<tr>
<td align="left">\it pkedit.exe</td>
<td align="right">94Kb</td>
<td align="left">Edits <tt>PK</tt> files</td>
</tr>
<tr>
<td align="left">\it pktopx.exe</td>
<td align="right">55Kb</td>
<td align="left">Converts <tt>PK</tt> files to
<tt>PXL</tt> format</td>
</tr>
<tr>
<td align="left">\it texcad.exe</td>
<td align="right">79Kb</td>
<td align="left">Interactive LaTeX drawing
tool</td>
</tr>
<tr>
<td align="left">\it texchk.exe</td>
<td align="right">49Kb</td>
<td align="left">Syntax checker for LaTeX</td>
</tr>
<tr>
<td align="left">\it texconv.exe</td>
<td align="right">27Kb</td>
<td align="left">Converts input files (see
“code pages”)</td>
</tr>
<tr>
<td align="left">\it dviscr.exe</td>
<td align="right">215Kb</td>
<td align="left">Previewer</td>
</tr>
<tr>
<td align="left">\it dviscrs.exe</td>
<td align="right">164Kb</td>
<td align="left">Previewer for small-memory
configurations</td>
</tr>
<tr>
<td align="left">\it dvivik.exe</td>
<td align="right">142Kb</td>
<td align="left">Previewer for Viking I
displays</td>
</tr>
<tr>
<td align="left">\it dvitype.exe</td>
<td align="right">72Kb</td>
<td align="left">Texware: shows <tt>DVI</tt>
file</td>
</tr>
<tr>
<td align="left">\it pltotf.exe</td>
<td align="right">74Kb</td>
<td align="left">Texware: converts <tt>PL</tt>
files to <tt>TFM</tt> format</td>
</tr>
<tr>
<td align="left">\it tftopl.exe</td>
<td align="right">48Kb</td>
<td align="left">Texware: converts <tt>TFM</tt>
files to <tt>PL</tt> format</td>
</tr>
<tr>
<td align="left">\it gftodvi.exe</td>
<td align="right">69Kb</td>
<td align="left">Mfware: makes proof sheets for
a font</td>
</tr>
<tr>
<td align="left">\it gftopk.exe</td>
<td align="right">53Kb</td>
<td align="left">Mfware: converts <tt>GF</tt>
files to <tt>PK</tt> format</td>
</tr>
<tr>
<td align="left">\it gftopxl.exe</td>
<td align="right">59Kb</td>
<td align="left">Mfware: converts <tt>GF</tt>
files to <tt>PXL</tt> format</td>
</tr>
<tr>
<td align="left">\it gftype.exe</td>
<td align="right">61Kb</td>
<td align="left">Mfware: shows <tt>GF</tt>
file</td>
</tr>
<tr>
<td align="left">\it mft.exe</td>
<td align="right">55Kb</td>
<td align="left">Mfware: pretty-prints
<tt>MF</tt> files</td>
</tr>
<tr>
<td align="left">\it pktogf.exe</td>
<td align="right">47Kb</td>
<td align="left">Mfware: converts <tt>PK</tt>
files to <tt>GF</tt> format</td>
</tr>
<tr>
<td align="left">\it pktype.exe</td>
<td align="right">45Kb</td>
<td align="left">Mfware: shows <tt>PK</tt>
file</td>
</tr>
<tr>
<td align="left">\it makeindx.exe</td>
<td align="right">102Kb</td>
<td align="left">Builds indices for
documents</td>
</tr>
<tr>
<td align="left">\it pooltype.exe</td>
<td align="right">31Kb</td>
<td align="left">Web: shows contents of pool
files</td>
</tr>
<tr>
<td align="left">\it tangle.exe</td>
<td align="right">52Kb</td>
<td align="left">Web: creates compilable
file</td>
</tr>
<tr>
<td align="left">\it weave.exe</td>
<td align="right">72Kb</td>
<td align="left">Web: creates documentation
file</td>
</tr>
<tr>
<td align="left">\it vftovp.exe</td>
<td align="right">69Kb</td>
<td align="left">Virtual fonts: converts
<tt>VF</tt> files to <tt>VPL</tt> format</td>
</tr>
<tr>
<td align="left">\it vptovf.exe</td>
<td align="right">73Kb</td>
<td align="left">Virtual fonts: converts
<tt>VPL</tt> files to <tt>VF</tt> format</td>
</tr>
</tbody>
</table>
</div>
<p>Deciding which programs to remove from the emTeX
directory depends, to a large extent, on how you use
TeX. If you haven't been using TeX for very long, try
to keep as many things as you can until you get a
better feel for what you'll be using. Save copies of
all the programs you delete on floppy disks so that
they are easy to get back. Here are some
suggestions:</p>
<div class="itemizedlist">
<ul type="disc">
<li>
<p>Delete the previewer and printer drivers that
you don't need.</p>
</li>
<li>
<p>Delete obsolete programs unless you know you
need them.</p>
</li>
<li>
<p>Delete \web programs if you'll never be
compiling TeX yourself or reading TeX program
source code.</p>
</li>
<li>
<p>Delete <b>Mfware</b> programs if you won't be
doing a lot of work with fonts. Note: keep
<b>gftopk.exe</b> if you want to use automatic
font generation.</p>
</li>
<li>
<p>Delete <b>Texware</b> and <b>Virtual</b> font
programs if you won't be working with virtual
fonts. (You can probably delete
<b>dvitype.exe</b>, in any case).</p>
</li>
<li>
<p>Delete <b>bibtex.exe</b> if you won't be
working with bibliographic databases.</p>
</li>
<li>
<p>Delete <b>makeindx.exe</b> if you won't be
working with indexes.</p>
</li>
<li>
<p>Delete <b>ask.exe</b> if you won't be using
<b>gh.bat</b>.</p>
</li>
</ul>
</div>
<p>Next, figure out what batch files you'll be using
and delete (or archive) all the others. If you aren't
using OS/2, this includes all of the <tt>*.cmd</tt>
files.</p>
</div>
<div class="section">
<div class="titlepage">
<div>
<h4 class="title"><a id="id2928261"
name="id2928261"></a>Deleting extra printer
drivers</h4>
</div>
</div>
<p>Read about the <b>dvidot</b><a id="id2928276"
class="indexterm" name="id2928276"></a> program for
printing to a dot matrix printer, if you have one. When
you figure out which of the <tt>DOT</tt> parameter
files you need, delete (or archive) the rest. Follow
these guidelines:</p>
<div class="itemizedlist">
<ul type="disc">
<li>
<p>If you don't have a Viking I display, delete
<b>dvivik.exe</b>.</p>
</li>
<li>
<p>If you don't have a laser printer, delete
<b>dvihplj.exe</b>.</p>
</li>
<li>
<p>Delete <b>dviscrs.exe</b> if you have enough
memory to use <b>dviscr</b> instead. If you are
always going to use a Windows or OS/2 previewer,
you can delete <b>dviscr.exe</b> as well.</p>
</li>
</ul>
</div>
</div>
</div>
<div class="section">
<div class="titlepage">
<div>
<h3 class="title"><a id="id2928367"
name="id2928367"></a>Basic Customization</h3>
</div>
</div>
<p><a id="id2928375" class="indexterm"
name="id2928375"></a>There are two ways to customize
emTeX. One way is to customize the environment variables
that emTeX uses; the other is to customize the
configuration files that emTeX uses for previewing and
printing (configuration files have no effect on TeX
itself).</p>
<div class="section">
<div class="titlepage">
<div>
<h4 class="title"><a id="sec.betaemtex"
name="sec.betaemtex"></a>Environment variables</h4>
</div>
</div>
<p>There are thirteen environment variables<a
id="id2928409" class="indexterm"
name="id2928409"></a><a id="id2928422"
class="indexterm" name="id2928422"></a> that emTeX
uses. For simplicity in the following discussion,
assume that emTeX is installed on drive C:. If it is
not, change <span
class="emphasis"><em>every</em></span> reference to C:
to the drive actually in use.</p>
<div class="variablelist">
<dl>
<dt><span class="term"><tt>EMTEXDRV</tt><a
id="id2928458" class="indexterm"
name="id2928458"></a> (Not set by
default)</span></dt>
<dd>
<p>Special note: this variable will become
obsolete with the next release of emTeX.</p>
<p>This variable tells emTeX what drive to use
when searching for default paths. Although I
don't recommend it, if you use entirely standard
paths for your files, you can rely on the
compiled-in defaults in the emTeX
executables.<sup>[<a id="id2928486"
name="id2928486"
href="#ftn.id2928486">123</a>]</sup> The
<tt>EMTEXDRV</tt> environment variable should be
set to the single letter of the drive on which
these paths reside. For example, if you installed
emTeX on drive C: (in completely standard
directories), you could set
<tt><tt>EMTEXDRV</tt>=C</tt>.</p>
</dd>
<dt><span class="term"><tt>EMTEXDIR</tt><a
id="id2928532" class="indexterm"
name="id2928532"></a> (Not set by
default)</span></dt>
<dd>
<p>Special note: this is a new variable; it will
become available with the next release of emTeX.
<tt>EMTEXDIR</tt> replaces <tt>EMTEXDRV</tt>.</p>
<p>This variable tells emTeX what path to use
when searching for default paths. The
<tt>EMTEXDIR</tt> environment variable should be
set to the root path where emTeX is installed
(for example, <tt>C:\EMTEX</tt>).</p>
</dd>
<dt><span class="term"><tt>TEXINPUT</tt><a
id="id2928598" class="indexterm"
name="id2928598"></a></span></dt>
<dd>
<p>Defines the directories that emTeX uses when
searching for TeX input files. You would
typically leave
<tt>C:{\bs}EMTEX{\bs}TEXINPUT</tt> in this path
and extend it with directories of your own in
place of <tt>C:{\bs}MYTEX</tt>.</p>
</dd>
<dt><span class="term"><tt>TEXFMT</tt><a
id="id2928651" class="indexterm"
name="id2928651"></a></span></dt>
<dd>
<p>Specifies where small versions of TeX look for
format files. Typically you would leave this set
as it is and add new format files to that
directory. You do not have to set this variable
if you are not using the small versions of
TeX.</p>
</dd>
<dt><span class="term"><tt>BTEXFMT</tt><a
id="id2928691" class="indexterm"
name="id2928691"></a></span></dt>
<dd>
<p>Specifies where large versions of TeX look for
format files. You will typically leave this set
as it is and add new format files to the
directory specified. If you do not use large
versions of TeX, you need not set this
variable.</p>
</dd>
<dt><span class="term"><tt>TEXTFM</tt><a
id="id2928731" class="indexterm"
name="id2928731"></a></span></dt>
<dd>
<p>TeX uses the directories stored in this
variable when searching for <tt>TFM</tt> files
for fonts used in your documents. If you install
new fonts, you should put the <tt>TFM</tt> files
for these fonts in their own directory and add
the name of that directory to the <tt>TEXTFM</tt>
path.</p>
</dd>
<dt><span class="term"><tt>MFINPUT</tt><a
id="id2928794" class="indexterm"
name="id2928794"></a></span></dt>
<dd>
<p>The MetaFont program looks for input files in
this path. It is analogous to the
<tt>TEXINPUT</tt> variable. If you add new
MetaFont fonts to your system, for example, the
\AmS fonts, place them in a different directory
and add that directory to this path. If you do
not use MetaFont, you do not need this
variable.</p>
</dd>
<dt><span class="term"><tt>MFBAS</tt><a
id="id2928840" class="indexterm"
name="id2928840"></a></span></dt>
<dd>
<p>Analogous to <tt>TEXFMT</tt>. Specifies where
small versions of MetaFont look for base files.
If you do not use MetaFont, you do not need this
variable.</p>
</dd>
<dt><span class="term"><tt>BMFBAS</tt><a
id="id2928882" class="indexterm"
name="id2928882"></a></span></dt>
<dd>
<p>Analogous to <tt>BTEXFMT</tt>. Specifies where
large versions of MetaFont look for base files.
If you do not use MetaFont, you do not need this
variable.</p>
</dd>
<dt><span class="term"><tt>MFJOB</tt><a
id="id2928924" class="indexterm"
name="id2928924"></a></span></dt>
<dd>
<p>Specifies where <b>MFjob</b> looks for input
files. If you are not using MetaFont or
<b>MFjob</b> for font generation, you do not need
this variable.</p>
</dd>
<dt><span class="term"><tt>BIBINPUT</tt><a
id="id2928976" class="indexterm"
name="id2928976"></a></span></dt>
<dd>
<p>Specifies where <b>bibtex</b> searches for
bibliography database files (<tt>BIB</tt> files).
Clearly, if you're not using BibTeX, you don't
need <tt>BIBINPUT</tt>.</p>
</dd>
<dt><span class="term"><tt>DVIDRVINPUT</tt><a
id="id2929034" class="indexterm"
name="id2929034"></a></span></dt>
<dd>
<p>This tells the emTeX DVI drivers where to
search for <tt>DVI</tt> files. In practice, I
simply set this to “<tt>.</tt>” so
that only the current directory is used. If you
find it convenient to search for <tt>DVI</tt>
files, by all means set it to an appropriate
path. The default path includes
<tt>C:{\bs}EMTEX{\bs}DOC</tt> so that it is easy
to preview or print the local guide.</p>
</dd>
<dt><span class="term"><tt>DVIDRVFONTS</tt><a
id="id2929109" class="indexterm"
name="id2929109"></a></span></dt>
<dd>
<p>This tells the emTeX DVI drivers where to
search for fonts. The <tt>C:{\bs}TEXFONTS</tt>
directory is the default location for font
libraries. If other fonts are installed, it's
natural to include them in this path. For
example, preview versions of the PostScript fonts
are now available from CTAN in font library
format. If you install those libraries in
<tt>C:{\bs}PSFONTS</tt>, you should change the
<tt>DVIDRVFONTS</tt> environment variable to
include both paths.</p>
</dd>
<dt><span class="term"><tt>DVIDRVGRAPH</tt><a
id="id2929166" class="indexterm"
name="id2929166"></a></span></dt>
<dd>
<p>The emTeX DVI drivers can incorporate
<tt>PCX</tt> and <tt>MSP</tt> graphics with a
\special command. The <tt>DVIDRVGRAPH</tt>
environment variable tells the drivers where to
look for the graphic files. The <tt>$r</tt>
portion of the path is replaced by the resolution
of the image required. For example, I set this to
<tt>C:{\bs}TEXGRAPH{\bs}GR\$r</tt> and put 300dpi
graphic images in
<tt>C:{\bs}TEXGRAPH{\bs}GR300</tt>, 420dpi images
in <tt>C:{\bs}TEXGRAPH{\bs}GR420</tt>, etc. The
default value of this variable is set so that the
local guide will print properly.</p>
</dd>
</dl>
</div>
</div>
<div class="section">
<div class="titlepage">
<div>
<h4 class="title"><a id="id2929255"
name="id2929255"></a>Setting up configuration
files</h4>
</div>
</div>
<p><a id="id2929262" class="indexterm"
name="id2929262"></a>Configuration file options are
described completely in the DVI driver documentation
that accompanies emTeX. Read the English or German
versions of <tt>dvidrv.doc</tt> carefully. The
“out of the box” configuration is
sufficient for most uses, but specifying a new
configuration file is a convenient way to alter the
default size of the page in preview mode or set up
emTeX to print pages in “two-up” or
“four-up” variations (for printing
booklets, for example).</p>
</div>
</div>
<div class="section">
<div class="titlepage">
<div>
<h3 class="title"><a id="id2929307"
name="id2929307"></a>Installing the Beta Test
Versions of emTeX</h3>
</div>
</div>
<p>It has been several years since the standard
distribution of emTeX was assembled. In that time,
several other releases have been made. These are beta
test releases, but they are as rock-solid as the standard
distribution. Personally, I encourage you to install the
beta test versions, especially because they offer
features not found in the standard release.</p>
<p>The beta test versions are stored in a series of
<tt>ZIP</tt> files at CTAN in the directory
<tt>systems/msdos/emtex/betatest</tt>. Table <a
href="ch13.html#tab.emtex.betasummary"
title="Table 13.4. The Beta Test Files for \protect\emTeX">
Table 13.4</a> summarizes the files in the beta test
distribution.\footnote{As this chapter is being written,
Eberhard Mattes\index{Mattes, Eberhard} is working on a
new version of \emTeX. This new version will, at some
point, replace the existing beta test files, making this
section somewhat out of date. Use the <span
class="emphasis"><em>READ.ME</em></span> files in the
actual distribution as the definitive source of
information.</p>
<div class="table">
<a id="tab.emtex.betasummary"
name="tab.emtex.betasummary"></a>
<p class="title"><b>Table 13.4. The Beta Test
Files for \protect\emTeX</b></p>
<table summary="The Beta Test Files for \protect\emTeX"
border="1">
<colgroup>
<col align="left" />
<col align="left" />
</colgroup>
<thead>
<tr>
<th align="left">\bf File</th>
<th align="left">\bf Contents</th>
</tr>
</thead>
<tbody>
<tr>
<td align="left">\it btexb8.zip</td>
<td align="left">Big \TeX executables</td>
</tr>
<tr>
<td align="left">\it dvidrv_1.zip</td>
<td align="left">New drivers and support
files</td>
</tr>
<tr>
<td align="left">\it dvispell.zip</td>
<td align="left">\program{dvispell}</td>
</tr>
<tr>
<td align="left">\it maketcp.zip</td>
<td align="left">\program{maketcp}</td>
</tr>
<tr>
<td align="left">\it mfb1.zip</td>
<td align="left">\MF executables</td>
</tr>
<tr>
<td align="left">\it MFjob11l.zip</td>
<td align="left">\program{MFjob}</td>
</tr>
<tr>
<td align="left">\it mfpm.zip</td>
<td align="left">OS/2 support for \MF
preview</td>
</tr>
<tr>
<td align="left">\it pkeditpm.zip</td>
<td align="left">OS/2 PM version of
\program{PKEdit}</td>
</tr>
<tr>
<td align="left">\it tex386b8.zip</td>
<td align="left">386 version of \TeX</td>
</tr>
<tr>
<td align="left">\it texb5.zip</td>
<td align="left">Small \TeX executables</td>
</tr>
</tbody>
</table>
</div>
<p>To install the beta test versions, simply unpack the
archives into your <tt>\bs emtex</tt> directory,
replacing any existing files with the new versions. After
you have installed the beta test versions, you can repeat
the space-saving steps suggested earlier in this
chapter.</p>
<p>What are the advantages of the beta test versions?</p>
<div class="itemizedlist">
<ul type="disc">
<li>
<p>Automatic font generation is supported. This
means that you do not need large font library
files.</p>
</li>
<li>
<p>The beta test versions are TeX version 3.141;
the standard distribution is the slightly older
version 3.0.</p>
</li>
<li>
<p>The beta test distribution includes a
386-specific version of TeX, which is much faster
than other versions.</p>
</li>
<li>
<p>For OS/2 users, a Presentation Manager
<tt>DVI</tt> previewer is provided.</p>
</li>
</ul>
</div>
</div>
<div class="section">
<div class="titlepage">
<div>
<h3 class="title"><a id="sec.emtex.autofont"
name="sec.emtex.autofont"></a>Running emTeX 386 in
Windows</h3>
</div>
</div>
<p><a id="id2929644" class="indexterm"
name="id2929644"></a><a id="id2929656" class="indexterm"
name="id2929656"></a>The 386-specific version of TeX
provided by the beta test distributions of emTeX has some
compelling advantages over the other TeX executables:
it's a big TeX and it's fast. Unfortunately, it does not
run in Windows (or some other MS-DOS environments).</p>
<p>The problem is memory management. In order to be large
and fast, the <tt>tex386</tt><a id="id2929686"
class="indexterm" name="id2929686"></a> executable relies
on some advanced features of the 386 (and higher)
processors. These features are provided under MS-DOS by a
“DOS extender.” The DOS extender<a
id="id2929701" class="indexterm" name="id2929701"></a>
allows MS-DOS applications to use “protected
mode,” where they can address more than 640Kb of
memory. There are several competing standards for
protected mode memory management. <tt>emx</tt><a
id="id2929728" class="indexterm" name="id2929728"></a>,
the extender implemented in emTeX, is not compatible with
the DPMI standard used by Microsoft Windows and some
other MS-DOS extenders (for example, MS-DOS sessions
under OS/2).</p>
<p>Luckily, there is a freely available MS-DOS extender,
which is compatible with both DPMI and emTeX, the RSX
extender. Starting with version beta-11 of emTeX, the<a
id="id2929744" class="indexterm" name="id2929744"></a> is
very easy to use.<sup>[<a id="id2929756" name="id2929756"
href="#ftn.id2929756">124</a>]</sup></p>
<p>There are two versions of the extender: <tt>rsx</tt><a
id="id2929798" class="indexterm" name="id2929798"></a>,
for use in MS-DOS with DPMI extenders<a id="id2929808"
class="indexterm" name="id2929808"></a>, and
<tt>rsxwin</tt><a id="id2929822" class="indexterm"
name="id2929822"></a>, for use in Windows. Both versions
are available on the CTAN archives in the directory
<tt>support/msdos/dpmi/rsx</tt>.</p>
<p>To use the RSX extender in MS-DOS with <tt>tex386</tt>
version beta-11 or later, simply put <tt>rsx.exe</tt>
somewhere on your <tt>PATH</tt>. When emTeX discovers a
DPMI extender, it will use <tt>rsx</tt> instead of
<tt>emx</tt>.</p>
<p>To use the RSX extender in Windows, you must modify
the command line that is executed to run <tt>tex386</tt>.
Where you currently use:</p>
<pre class="screen">
<span class="emphasis"><em>d:{\bs}path1\bs</em></span>tex.exe <span
class="emphasis"><em>options</em></span>
</pre>
<p>you must now use:</p>
<pre class="screen">
<span
class="emphasis"><em>d:{\bs}path2\bs</em></span>rsxwin.exe -e <span
class="emphasis"><em>d:\bs path1\bs</em></span>tex386.exe <span
class="emphasis"><em>options</em></span>
</pre>
<p>The <tt>rsxwin</tt> extender will set up an extender
for emTeX and then run TeX.</p>
</div>
<div class="section">
<div class="titlepage">
<div>
<h3 class="title"><a id="id2929946"
name="id2929946"></a>Automatic Font Generation with
emTeX</h3>
</div>
</div>
<div class="note"
style="margin-left: 0.5in; margin-right: 0.5in;">
<h3 class="title">Note</h3>
<p>Automatic font generation<a id="id2929960"
class="indexterm" name="id2929960"></a><a
id="id2929972" class="indexterm" name="id2929972"></a>
is not supported by the standard distribution of emTeX.
You must install the beta test versions to use
automatic font generation.</p>
</div>
<p>The new versions of the emTeX DVI drivers include a
program called <b>dvidrv</b><a id="id2930004"
class="indexterm" name="id2930004"></a>, which handles
automatic font generation. The <b>dvidrv</b> program runs
the driver and if the driver indicates that fonts are
missing, gives you the opportunity to use font
substitution or build new fonts. The <b>MFjob</b> program
is used to build the fonts. <b>MFjob</b> runs the
MetaFont and <b>GFtoPK</b> to produce and install the
necessary fonts. <b>MFjob</b> installs the <tt>PK</tt>
files into the first directory on the font path.</p>
<p>The <b>dvidrv</b> program can be replaced by a batch
file that can select an appropriate font-rendering
program (something other than MetaFont, for example) to
build the necessary fonts. This feature is only available
in the OS/2 versions of emTeX releases 1.4t and later.
The batch file in Example <a
href="apd.html#ex.dvidxx"
title="Example D.3. dvidxx.btm">Example D.3</a>
in Appendix <a href="apd.html"
title="Appendix D. Long Examples">Appendix D</a>,
<span class="emphasis"><em><a href="apd.html"
title="Appendix D. Long Examples">Appendix D</a></em></span>,
is a replacement for <b>dvidrv</b>. It uses
<b>ps2pk</b><a id="id2930120" class="indexterm"
name="id2930120"></a> to make <tt>PK</tt> versions of
PostScript Type 1 fonts if an appropriate
<tt>PFB</tt> file can be found. Otherwise, it calls
<b>MFjob</b> in the same way that <b>dvidrv</b> does.</p>
</div>
<div class="section">
<div class="titlepage">
<div>
<h3 class="title"><a id="sec.netemtex"
name="sec.netemtex"></a>Installing emTeX on a
Network</h3>
</div>
</div>
<p>Ordinarily, emTeX does not require write access to any
of its data files, so installation on a network<a
id="id2930180" class="indexterm" name="id2930180"></a> is
not a problem. The location of temporary files that must
be writable is controlled with environment variables. If
automatic font generation is being used, there are two
applicable cautions.</p>
<p>First, if you use the batch file approach to automatic
font generation in order to support different rendering
software, be aware that your batch file must handle the
fact that multiple files may be written to the same
directory from different users. Don't let filenames
collide.</p>
<p>Second, it is ideal if you can provide a single
world-writable location for automatically generated
fonts. If multiple users are working with similar
documents, each will not need private copies of the fonts
they require. If your networking software tracks the time
of last file access, you can determine which files to
delete from this global font area on a regular basis.</p>
</div>
</div>
<div class="section">
<div class="titlepage">
<div>
<h2 class="title" style="clear: both"><a id="id2930222"
name="id2930222"></a>texas</h2>
</div>
</div>
<p><b>texas</b><a id="id2930235" class="indexterm"
name="id2930235"></a> is a 32-bit MS-DOS version of TeX. It
is a big TeX. Unlike <b>tex386</b>, which comes with emTeX,
the <b>texas</b> executable uses a royalty-free, commercial
DOS extender. The advantage of this extender is that it can
run under Windows and other protected-mode environments
such as DESQview.</p>
<p>Before you install <b>texas</b>, you should get a
complete TeX system from some other location (emTeX or
gTeX, for example). The <b>texas</b> distribution does not
include anything other than the TeX executable and the
MS-DOS extender---no format files, no input files,
nothing.</p>
<p>The <span class="emphasis"><em>-i</em></span> switch
runs <b>texas</b> in iniTeX<a id="id2930301"
class="indexterm" name="id2930301"></a> mode. Using the
instructions from Chapter <a href="ch04.html"
title="Chapter 4. Macro Packages">Chapter 4</a>,
<span class="emphasis"><em><a href="ch04.html"
title="Chapter 4. Macro Packages">Chapter 4</a></em></span>,
you should be able to build new format files for use with
<b>texas</b> if you have another TeX distribution to work
from.</p>
<p><b>texas</b> uses the following environment <a
id="id2930352" class="indexterm" name="id2930352"></a><a
id="id2930362" class="indexterm" name="id2930362"></a>
variables:</p>
<div class="variablelist">
<dl>
<dt><span class="term"><tt>TEXINPUTS</tt></span></dt>
<dd>
<p><a id="id2930395" class="indexterm"
name="id2930395"></a>Defines the directories that
<b>texas</b> uses when searching for TeX input files.
You would typically leave the defaults in this path
and extend it with directories of your own in place
of <tt>C:{\bs}MYTEX</tt>.</p>
</dd>
<dt><span class="term"><tt>TEXFORMATS</tt><a
id="id2930448" class="indexterm"
name="id2930448"></a></span></dt>
<dd>
<p>Specifies where <b>texas</b> looks for format
files. Typically you would leave this set as is and
add new format files to that directory.</p>
</dd>
<dt><span class="term"><tt>TEXFONTS</tt><a
id="id2930492" class="indexterm"
name="id2930492"></a></span></dt>
<dd>
<p>TeX uses the directories stored in this variable
when searching for <tt>TFM</tt> files for fonts used
in your documents. If you install new fonts, you
should put the <tt>TFM</tt> files in their own
directory and add the name of that directory to the
<tt>TEXFONTS</tt> path.</p>
</dd>
<dt><span class="term"><tt>TEXPOOL</tt><a
id="id2930555" class="indexterm"
name="id2930555"></a></span></dt>
<dd>
<p>Specifies where <b>texas</b> looks for its pool
file. Unless you have installed <b>texas</b> in an
unusual way, you will not have to change this
setting.</p>
</dd>
<dt><span class="term"><tt>DOS4GVM</tt><a
id="id2930602" class="indexterm"
name="id2930602"></a></span></dt>
<dd>
<p><b>texas</b> uses a DOS extender<a id="id2930630"
class="indexterm" name="id2930630"></a> to overcome
memory limitations under MS-DOS. If the extender runs
out of memory, it writes parts of the memory-image
that it is maintaining out to disk. This environment
variable specifies where that information should be
written. You do not usually need to change this
setting.</p>
</dd>
</dl>
</div>
</div>
<div class="section">
<div class="titlepage">
<div>
<h2 class="title" style="clear: both"><a id="id2930652"
name="id2930652"></a>sbTeX</h2>
</div>
</div>
<p>sbTeX<a id="id2930661" class="indexterm"
name="id2930661"></a> is another MS-DOS implementation of
TeX. The <tt>sb38tex</tt><a id="id2930680"
class="indexterm" name="id2930680"></a> distribution
includes TeX and iniTeX executables, <tt>TFM</tt> files for
the Computer Modern Roman fonts, and TeX sources for the
Plain TeX format. This is TeX version 3.141. You will have
to get DVI drivers and other TeX tools from a different
package.</p>
<p>The <tt>sb32xet</tt><a id="id2930712" class="indexterm"
name="id2930712"></a> distribution is \XeT version
3.1.<sup>[<a id="id2930721" name="id2930721"
href="#ftn.id2930721">125</a>]</sup> The source files for
the \XeT <tt>nailp</tt> format are included, as well as the
supporting files for Hebrew.</p>
<p>The <tt>sbmf13</tt><a id="id2930746" class="indexterm"
name="id2930746"></a> distribution is MetaFont version
2.71. Only the sources for the Plain MetaFont base file are
provided. Like the sbTeX distribution, this is a very
minimal set of files. Only the <b>GFtoPK</b><a
id="id2930763" class="indexterm" name="id2930763"></a>
utility is included; all of the other MetaFont programs you
need will have to be obtained from another package.</p>
<p>The default directories for sbTeX are <tt>\bs TEX\bs
INPUTS</tt> for input files, <tt>\bs TEX\bs FORMATS</tt>
for format files, and <tt>{\bs TEX\bs FONTTFMS}</tt> for
<tt>TFM</tt> files. The default drive is C:, but that can
be changed with the <b>sb38set</b> program.</p>
<p>You can also modify these paths by setting the
<tt>TEXINPUTS</tt> environment variable<a id="id2930826"
class="indexterm" name="id2930826"></a><a id="id2930839"
class="indexterm" name="id2930839"></a> for input files,
the <tt>FMTSB</tt> environment variable for format files,
and the <tt>FONTTFMS</tt> environment variable for
<tt>TFM</tt> files. Additionally, sbTeX uses the
<tt>SBFTMP</tt> environment variable to determine where
temporary files should be located if font caching is
performed. Here is a more complete description of sbTeX's
environment variables:</p>
<div class="variablelist">
<dl>
<dt><span class="term"><tt>TEXINPUTS</tt></span></dt>
<dd>
<p><a id="id2930903" class="indexterm"
name="id2930903"></a>Defines the directories that
sbTeX uses when searching for TeX input files. You
would typically leave the defaults in this path and
extend it with directories of your own in place of
<tt>C:{\bs}MYTEX</tt>.</p>
</dd>
<dt><span class="term"><tt>FMTSB</tt><a id="id2930949"
class="indexterm" name="id2930949"></a></span></dt>
<dd>
<p>Specifies where sbTeX looks for format files.
Typically you would leave this set as it is and add
new format files to that directory.</p>
</dd>
<dt><span class="term"><tt>FONTTFMS</tt><a
id="id2930987" class="indexterm"
name="id2930987"></a></span></dt>
<dd>
<p>TeX uses the directories stored in this variable
when searching for <tt>TFM</tt> files for fonts used
in your documents. If you install new fonts, you
should put the <tt>TFM</tt> files for these fonts in
their own directory and add the name of that
directory to the <tt>FONTTFMS</tt> path.</p>
</dd>
<dt><span class="term"><tt>SBFTMP</tt><a id="id2931046"
class="indexterm" name="id2931046"></a></span></dt>
<dd>
<p>When font-caching is enabled, sbTeX writes cached
information to disk when it runs out of memory. This
environment variable specifies where that information
should be written. You do not usually need to change
this setting.</p>
</dd>
</dl>
</div>
</div>
<div class="section">
<div class="titlepage">
<div>
<h2 class="title" style="clear: both"><a id="id2931076"
name="id2931076"></a>gTeX</h2>
</div>
</div>
<p>The gTeX<a id="id2931085" class="indexterm"
name="id2931085"></a> package is distributed in two ways.
One way is intended to supplement (actually, replace part
of) the emTeX distribution. The advantage of gTeX
executables over emTeX is that they will run under Windows.
The 386 versions of emTeX executables will not run under
Windows. On the other hand, although gTeX will run in an
MS-DOS session under OS/2, only the emTeX executables will
actually run in a native OS/2 session. The other
distribution is a complete set of <tt>TFM</tt> files,
source, and input files for Plain TeX, LaTeX, and AMSTeX.
In either distribution, you must get DVI drivers and some
ancillary programs from another complete package (like
emTeX).</p>
<p>The following programs are included in the gTeX
distribution:</p>
<pre class="screen">
\begin{tabular}{lll}
&BibTeX; & <command>GFtoPK</command> & <command>VFtoVP</command> \\
<command>DVItype</command> & <command>MFT</command> & <command>VPtoVF</command> \\
<command>DVIcopy</command> & <command>PKtoGF</command> \ & <command>MakeIndx</command> \\
<command>GFtoDVI</command> \ & <command>PKtype</command> & &MF; \\[2pt]
\multicolumn{3}{l}{\program{amSpell} (a third party spell-checker, not traditionally part of \TeX)}\\[2pt]
\multicolumn{3}{l}{\program{MEwin} (an Emacs-like editor for Windows, also not traditionally part of \TeX)}\\
\end{tabular}
</pre>
<p>The gTeX executables use the same environment
variables<a id="id2931134" class="indexterm"
name="id2931134"></a><a id="id2931160" class="indexterm"
name="id2931160"></a> as emTeX.</p>
</div>
<div class="footnotes">
<br />
<hr width="100" align="left" />
<div class="footnote">
<p><sup>[<a id="ftn.id2920364" name="ftn.id2920364"
href="#id2920364">122</a>]</sup> {Hence the spider on the
cover, by the way.}</p>
</div>
<div class="footnote">
<p><sup>[<a id="ftn.id2928486" name="ftn.id2928486"
href="#id2928486">123</a>]</sup> {One of the reasons I
don't recommend it is that it isn't easy to determine
precisely what the compiled-in defaults are, and they may
change without notice.}</p>
</div>
<div class="footnote">
<p><sup>[<a id="ftn.id2929756" name="ftn.id2929756"
href="#id2929756">124</a>]</sup> {Earlier versions of
<tt>tex386.exe</tt> had the <tt>emx</tt> extender
“bound” into the executable, which made the
process more complicated. The <tt>emx</tt> extender had
to be unbound before the new one could be used.}</p>
</div>
<div class="footnote">
<p><sup>[<a id="ftn.id2930721" name="ftn.id2930721"
href="#id2930721">125</a>]</sup> {\XeT is a variant of
TeX that can typeset in both left-to-right and
right-to-left modes.}</p>
</div>
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