# Direc­tory tex-archive/macros/latex/contrib/relenc

This relenc package is released under the LaTeX Project Public

ABSTRACT:
What in my opinion is one of the most irritating limitations with the
standard encodings used with LaTeX today is that they either have very
few slots available for ligatures or offer no way in which LaTeX can make
use all those accented character glyphs that fonts usually come equipped
with. The relenc package makes it possible to get around this by
introducing the concept of a relaxed encoding. Unlike normal encodings,
relaxed encodings give the font designer (or whoever is setting up the
font for use with LaTeX) a saying on what the author commands setting text
from the fonts should really do to get their work done. This can be used
to make more slots available for ligatures without more than marginally
changing the visible result of any command.

One such relaxed encoding is included with the relenc package: the T1R
encoding. It behaves like T1 to the author, but allows the font designer to
include some 60 ligatures in the font (T1 only allows seven). Note however
that it is up to the font designer to decide how those 60 slots should be
used, so any subset of them can just as well be used for accented letters.

The package also comes with a font family called zcm, which exists only to
provide an example of what can be done with the relenc package. This
example can be viewed if you typeset the file reldemo.tex, but before you
do that you need to have docstrip generate some other files. That will be
done automatically if you run LaTeX on relenc.ins.

The distribution of the package roughly consists of four logical parts:
The first part is the package itself and its documentation, the second is
the T1R encoding, the third is the zcm font family, and the fourth consists
of files related to the distribution in general. The files in all four
parts are listed and described below. All these files should be present in
the distribution. If you recieve only some of these files from someone,
then complain.

The files in the fourth part are:

relenc.ins    The docstrip installation script for the package and
accompanying files. This script extracts files for parts
one, two, and three from their respective documented source
files.

The files in the first part are:

relenc.dtx    The documented source file for the relenc package.
relenc.tex    The complete documentation. The appendices of this document
even contain the documentation for the T1R encoding and zcm
font family, but that text is located in the files
t1renc.dtx and t1rzcm.fdd.
2sidedoc.sty  A LaTeX2e package used when typesetting relenc.tex and
relenc.dtx. See [1] below.

The file in the second part is:

t1renc.dtx    The specification of the T1R encoding and the documented
source for its encoding definition file.

The files in the third part are:

t1rzcm.fdd    A short description of the zcm font family and the
documented source for its font definition file.
reldemo.tex   A file that generates an example of what can be done with
the relenc package.
zcmr8d.tfm    \   The actual font files for the zcm font family.
zcmr8d.vf      |  PLEASE NOTE: These files are binary files and must be
zcmr8d.vf2     |  transferred as such. If TeX, while typesetting
zcmra.tfm      /  file" then these files have most likely been damaged in
zcmra.vf       |  some way. This sort of thing is usually caused by the
zcmra.vf2      |  files being FTPed as text files instead of binary
zcmra.vf3     /   files. ALSO NOTE: You only need four of these for any
given TeX installation, but different installations need
different subsets of them. See the documentation (typeset

The files docstrip generate from the documented source files above are:

relenc.sty    This is the relenc package itself.
t1renc.def    This is the encoding definition file for the T1R encoding.
t1rzcm.fd     This is the font definition file for the zcm font family
under the T1R encoding.
ecsubzcm.sty  This is a helper package, that may be useful for those who
uses the T1R encoding but prefer not to have the zcm font
family around.

A simple installation:

Files to put in some TeX inputs directory:
relenc.sty
t1renc.def
t1rzcm.fd

Files to put in some directory where TeX and DVI drivers looks for
TeX font metric (TFM) files:
zcmr8d.tfm
zcmra.tfm

Files to put in some directory where DVI drivers looks for virtual font
(VF) files:
zcmr8d.vf
zcmra.vf

[1] The usage of the 2sidedoc package here is merely to split some of my
overlong macro names on more than one line, but I originally wrote it
to get a better layout on files documented with the doc package when
printing them in twoside mode. 2sidedoc sees to that the macro and
environment names printed in the margin by the commands in doc always
end up in the outer margin (instead of the left margin as with the
naked doc package) when the class operates in twoside mode.

One funny thing about the package is that it writes information in the
aux file to help it figure out (for each piece of marginal material)
which margin is the outer. Due to this you may have to typeset a
document more than one time before the placing gets correct
everywhere, but that is the same kind of problem you'll be used to
get with incorrect page references, so we all know we can live with it.

I intend to make a proper release of the 2sidedoc package sometime,
but first I will have to do something about the placement of codeline
numbers as well. As it turns out, the codeline numbers will assume the
role of an optical axis on the page; marking the boundary between the
body text and marginal material parts of the paper. This means that
these codeline numbers will have to change side depending on whether
the page is odd or even as well, just like the marginal material, and
I haven't gotten round to implementing a mechanism for this yet.

Still, there is no harm in using the package as it is. If you put its
\usepackage somewhere after that of doc, then it will modify the doc
macros that needs to be modified. You don't notice much of it however,
unless you are typesetting with twosided printing active.

Lars Hellstr�

## Files

Name Size Date Notes
2sidedoc.sty 10370 1999-02-05 01:00
reldemo.tex 13969 1999-02-05 01:00
relenc.dtx 61076 1999-02-05 01:00
relenc.ins 346 1999-02-05 01:00
relenc.tex 62558 1999-02-05 01:00
t1renc.dtx 43095 1999-02-05 01:00
t1rzcm.fdd 12275 1999-02-05 01:00
zcmr8d.tfm 5840 1999-02-05 01:00
zcmr8d.vf 3132 1999-02-05 01:00
zcmr8d.vf2 3132 1999-02-05 01:00
zcmr8d.vf3 3128 1999-02-05 01:00
zcmra.tfm 5432 1999-02-05 01:00
zcmra.vf 3196 1999-02-05 01:00
zcmra.vf2 3196 1999-02-05 01:00
zcmra.vf3 3192 1999-02-05 01:00

Down­load the con­tents of this pack­age in one zip archive (76.3k).

## re­lenc – A "re­laxed" font en­cod­ing

LaTeX pack­age pro­vid­ing a re­laxed font en­cod­ing to make avail­able to a font de­signer more slots for in­ser­tion of lig­a­tures and ac­cented char­ac­ters.

 Pack­age De­tails re­lenc Ver­sion 1999-01-23 Li­cense The LaTeX Project Public Li­cense 1 Main­tainer Lars Hell­ström Con­tained in TeXlive as re­lenc MikTeX as re­lenc Topics sup­port for font de­vel­op­ment, test­ing and char­ac­ter­i­sa­tion