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+% pdcadobe.dtx -- documentation & source for pdcadobe.tex -*-tex-*-
+
+%%%@TeX-document-file {
+%%% title = "PDCADOBE -- Formatting Macros",
+%%% filename = "$texmf/doc/plain/pdcmac/pdcadobe.dtx",
+%%% version = "$Revision: 1.3 $",
+%%% package = "pdcmac 1.0",
+%%% date = "$Date: 1995/03/30 16:07:31 $",
+%%% author = "P. Damian Cugley",
+%%% email = "damian.cugley@comlab.ox.ac.uk",
+%%% address = "Oxford University Computing Laboratory,"
+%%% Parks Road, Oxford OX1 3QD, UK",
+%%% abstract = "This document describes and is the source code for
+%%% the TeX definitions file pdcadobe.tex.
+%%% Running plain TeX on this file produces both the
+%%% definitions file and the printed documentation.",
+%%% copyright = "Copyright (c) 1995 P. Damian Cugley",
+%%% copying = "This program is free software; you can redistribute
+%%% it and/or modify it under the terms of the GNU
+%%% General Public License as published by the Free
+%%% Software Foundation; either version 2 of the License,
+%%% or (at your option) any later version.",
+%%% notice = "This program is distributed in the hope that it will
+%%% be useful, but WITHOUT ANY WARRANTY; without even the
+%%% implied warranty of MERCHANTABILITY or FITNESS FOR A
+%%% PARTICULAR PURPOSE. See the GNU General Public
+%%% License for more details.",
+%%% notice = "You should have received a copy of the GNU General
+%%% Public License along with this program; if not, write
+%%% to the Free Software Foundation, Inc., 675 Mass Ave,
+%%% Cambridge, MA 02139, USA.",
+%%% codetable = "USASCII",
+%%% dependencies = "pdccode.tex"
+%%%}
+
+%{{{ pdcadobe
+%{{{ preamble
+\relax
+\input pdccode
+
+\document
+\rcs$Id: pdcadobe.dtx,v 1.3 1995/03/30 16:07:31 pdc Exp $\endrcs
+
+\codefile{pdcadobe.tex}
+%}}} preamble
+%{{{ introduction
+
+\author{P. Damian Cugley}
+\title{PDCAdobe---Macros for using Adobe fonts}
+\section{Introduction}
+
+ This document describes |pdcadobe.tex|, a collection of macros
+ for using Adobe's Standard Roman character set, via DVIPS's
+ variation on the \TeX\ Text encoding.
+
+\notepar
+ You will need to use a different strategy if your PostScript
+ fonts adhere strictly to the \TeX\ Text conventions (the
+ conventions of Computer Modern Roman, described in {\it\TeX
+ book}\/ Appendix~F, and called OT1 by the \LaTeX~3 team), such
+ as the fonts generated with Fontinst.
+\endnotepar
+
+\subsec{New text symbols}
+
+ The new characters now available in text are:
+$$\halign{\indent\tt\char`\\#1\hfil&\quad#\hfil\cr
+ quotesingle& typewriter-style apostrophe ({\tt\char"0D })\cr
+ quotedouble& typewriter-style double apostrophe ({\tt"})\cr
+ asciicircum& ASCII circumflex\cr
+ asciitilde& ASCII tilde\cr
+}$$
+
+
+\subsec{Use of the Symbol font}
+
+ The assumption is that one of the resons for using PostScript
+ fonts is that, if you stick to the `Adobe~35', the resulting
+ PostScript files are much smaller because no font bitmaps need
+ to be downloaded. On this assumption, Adobe's Symbol font is
+ used whenever possible, even when the Computer Modern symbol is
+ arguably prettier.
+
+ The Symbol font will need to have its own maths family, which by
+ convention this file expects to find defined as |\asyfam|.
+
+\subsec{Composite letters}
+
+\setbox0=\hbox{accent}
+\edef\\{\vrule height\the\ht0 depth\the\dp0 width\the\wd0 \relax }
+
+ Composite letters are those made from some base letter and a
+ {\it mark}, for example {\it\'e}, {\it\"u}.\footnote*{`Composite
+ letters' is a euphemism for what English speakers usually refer
+ to as `\\ed letters', since the word `\\' tends to provoke
+ lectures to the effect that composite letters are not considered
+ to be `\\ed' in many of the lanuages in which they are used.}
+ In the Adobe Standard Roman character set, and hence in
+ |afm2tfm|'s encoding, the composite letters of ISO 8859--1 are
+ included as separate glyphs. These glyphs are accessed using
+ ligatures between mark glyphs and base letters (so that |^^13e|
+ in the manuscript file produces `\'e'). Unfortunately,
+ exploiting this is tricky if we also want to allow for composite
+ glyphs {\it not} included in the PostScript fonts.
+
+ The approach taken in these definitions is that \TeX's composite
+ letter commands (|\'|, |\"|, and friends) are left unchanged, so
+ that `|\'e|' works through \TeX's |\|\\ command. The magic
+ glyphs are available as commands with names like |\acuteglyph|
+ or via the Latin-1 special symbols, so that `|\acuteglyph e|' or
+ `|^^b4e|' (which might liik like `{\tt\char"13 e}' on the screen
+ if your computer uses Latin-1) produces `\'e' as a single glyph
+ (which might mean tha mark is better aligned). Finally, the
+ Latin-1 composite letters generate the single glyphs vial
+ ligatures, so that `|^^e9|' (which may well look like `{\tt\'e}'
+ on the screen) expands to `|\acuteglyph e|' and hence `\'e'.
+
+\subsec{About this document}
+
+ The definitions file and the printed documentation are both in
+ |pdcadobe.dtx|, a `documented \TeX\ macros' file\footnote*{The
+ \LaTeX~2e distribution uses files with the `|dtx|' suffix for
+ similar purposes.} which, when processed by plain \TeX,
+ generates a fresh copy of |pdcadobe.tex| in the current directory
+ in addition to the |dvi| file. This ensures that the printed
+ documentation and the code it describes are identical. The
+ |dtx| file uses the macros in |pdccode.tex|.
+
+%}}} introduction
+%{{{ File identification
+\section{File identification}
+
+ Nowadays, macro files start with some comments identifying the
+ file.
+
+\code
+ \|\% pdcadobe.tex \fileversion~\filedate~-- macros for Adobe style fonts
+ |
+ |%%%@TeX-definition-file {
+ |%%% filename = "$texmf/tex/plain/pdcmac/pdcadobe.tex",
+ \|\%\%\% version~~~~~~~~= "\fileversion",
+ \|\%\%\% date~~~~~~~~~~~= "\filedate",
+ |%%% package = "pdcmac 1.0",
+ |%%% author = "P. Damian Cugley",
+ |%%% email = "damian.cugley@comlab.ox.ac.uk",
+ |%%% address = "Oxford University Computing Laboratory,
+ |%%% Parks Road, Oxford OX1 3QD, UK",
+ |%%% codetable = "USASCII",
+ |%%% keywords = "TeX, plain TeX, macros",
+ |%%% supported = "Maybe",
+ |%%% abstract = "Formatting macros for Adobe-style fonts.
+ |%%% This file was generated by running
+ \|\%\%\%~~~~~~~~~~~~~~~~~~~plain TeX on \jobname.dtx",
+ |%%% copyright = "Copyright (c) 1991-1995 P. Damian Cugley",
+ |%%% copying = "DO NOT DISTRIBUTE THIS FILE.
+ \|\%\%\%~~~~~~~~~~~~~~~~~~~Distribute \jobname.dtx only as part of the
+ |%%% package it came in.",
+ |%%% dependencies = "",
+ |%%% }
+ |
+ \|\\message\{\fileversion~<pdc \filedate>\}
+ |
+\endcode
+%}}} file id
+%{{{ chardefs
+\section{Characters available in all styles}
+
+ The following characters are in the fonts generated by
+ |afm2tfm|, so are available in all styles.
+\code
+ |\chardef\quotesingle="0D
+ |\chardef\quotedouble="22
+ |\chardef\_="5F
+ |\chardef\asciicircum="80
+ |\chardef\asciitilde="81
+ |\chardef\cents="A2
+ |\chardef\pounds="A3
+ |\chardef\fractionslash="A4
+ |\chardef\yen="A5
+ |\chardef\florin="A6
+ |\chardef\S="A7
+ |\chardef\currency="A8
+ |\chardef\lguillemet="AB
+ |\chardef\dag="B2
+ |\chardef\ddag="B3
+ |\chardef\gbdecimal="B4
+ |\chardef\P="B6
+ |\chardef\bullet="B7
+ |\chardef\quotesinglebase="B8
+ |\chardef\quotedblbase="B9
+ |\chardef\rguillemet="BB
+ |\chardef\ellipsis="BC \def\dots{\ellipsis\thinspace}
+ |\chardef\permille="BD
+ |\chardef\orda="E3
+ |\chardef\ordo="EB
+\endcode
+ Some glyphs, like |\fractionslash| and |\gbdecimal| may well be
+ used in maths mode, but are defined using |\chardef| to allow
+ them to be used in text as well.
+
+ The definition of |\dots| adds the thin space that is included
+ in plain \TeX's |\dots|, so that `|\dots,|' will have a thin
+ space between the third full stop and the comma.
+
+\subsec{Maths stuff}
+
+ These symbols are available in maths mode, coming from the |\rm|
+ font (fam~0).
+\code
+ |\mathchardef\backslash="205C
+ |\edef\lbrace{\delimiter"407B308} \let\{=\lbrace \mathcode`\{="407B
+ |\mathcode`\|="707C \mathchardef\mid="307C
+ |\edef\rbrace{\delimiter"507D309} \let\}=\rbrace \mathcode`\}="507D
+ |\mathchardef\sim="3081
+ |\mathchardef\cdot="20B4
+ |\mathchardef\bullet="20B7
+ |\mathchardef\ldots="60BC
+\endcode
+ There {\it are} extensible braces in the Adobe Symbol font,
+ which I~would have used for the |\lbrace| and |\rbrace|
+ commands. Unfortunately, the TFM file generated with |afm2tfm|
+ seems to lack the special information that makes extensible
+ characters work, so the |cmex10| glyphs must be used instead.
+
+\subsec{Marks for composite letters}
+
+ Some common accented letters can be got by printing the accent
+ glyph before the letter glyph. However not all combinations
+ will work, so I~have left plain \TeX's definitions in place.
+
+ For later reference, the glyphs used for the accents are given
+ names.
+\code
+ |\chardef\graveglyph="12
+ |\chardef\acuteglyph="13
+ |\chardef\hookglyph="14
+ |\chardef\breveglyph="15
+ |\chardef\macronglyph="16
+ |\chardef\ringglyph="17
+ |\chardef\cedillaglyph="18
+ |\chardef\circumglyph="5E
+ |\chardef\tildeglyph="7E
+ |\chardef\twodotsglyph="7F
+ |\chardef\dotglyph="C7
+ |\chardef\hungarianglyph="CD
+ |\chardef\ogonekglyph="CE
+\endcode
+
+
+ Some special letters and marks have been moved to new slots.
+\code
+ |\chardef\AA="C8 \chardef\aa="98
+ |\chardef\L="E8 \chardef\l="F8
+ |\def\.#1{\accent\dotglyph #1}
+ |\def\H#1{\accent\hungarianglyph"CD #1}
+\endcode
+
+%}}} chardefs
+%{{{ adobe sy
+\section{Adobe Symbol font characters}
+
+ Most of Adobe's Symbol font's glyphs exist already in one of the
+ maths fonts. Nevertheless I~think it makes sense to use them
+ whenever possible, because if it so happens that none of the
+ glyphs in the maths fonts are used, the bitmaps for the fonts
+ may be omitted from the PostScript file, making it much smaller.
+ For these definitions to work, there must be a family |\asyfam|
+ and font nickname |\asy|.
+
+\code
+ |\ifx\asyfam\UNDEFINED
+ | \newfam\asyfam
+ |\fi
+\endcode
+
+\subsec{Extracting the fam name}
+
+\code
+ |\edef\\{\ifcase\asyfam 0\or 1\or 2\or 3\or 4\or 5\or 6\or 7\or
+ | 8\or 9\or A\or B\or C\or D\or E\or F\fi
+ |}
+\endcode
+
+ Where plain \TeX's definition uses glyphs from the roman font,
+ I~have let the definition stand.
+\code
+ |\mathchardef\forall="0\\22
+ |\mathchardef\exists="0\\24
+ |\mathchardef\suchthat="0\\27
+ |\mathcode`*="2\\2A
+ |\mathcode`,="6\\2C
+ |\mathcode`-="2\\2D
+ |\mathcode`.="2\\2E
+ |\mathcode`/="2\\2F
+ |\mathcode`<="3\\3C
+ |\mathcode`>="3\\3E
+\smallbreak
+ |\mathchardef\cong="3\\40
+ |\mathchardef\Alpha="0\\41
+ |\mathchardef\Beta="0\\42
+ |\mathchardef\Chi="0\\43
+ |\mathchardef\Delta="0\\44
+ |\mathchardef\Epsilon="0\\45
+ |\mathchardef\Phi="0\\46
+ |\mathchardef\Gamma="0\\47
+ |\mathchardef\Eta="0\\48
+ |\mathchardef\Iota="0\\49
+ |\mathchardef\vartheta="0\\4A
+ |\mathchardef\Kappa="0\\4B
+ |\mathchardef\Lambda="0\\4C
+ |\mathchardef\Mu="0\\4D
+ |\mathchardef\Ni="0\\4E
+ |\mathchardef\Omicron="0\\4F
+\smallbreak
+ |\mathchardef\Pi="0\\50
+ |\mathchardef\Theta="0\\51
+ |\mathchardef\Rho="0\\52
+ |\mathchardef\Sigma="0\\53
+ |\mathchardef\Tau="0\\54
+ |\mathchardef\varUpsilon="0\\55
+ |\mathchardef\varsigma="0\\56
+ |\mathchardef\Omega="0\\57
+ |\mathchardef\Xi="0\\58
+ |\mathchardef\Psi="0\\59
+ |\mathchardef\Zeta="0\\5A
+%
+ |\mathchardef\therefore="3\\5C
+%
+ |\mathchardef\perp="3\\5E
+%
+\smallbreak
+%
+ |\mathchardef\alpha="0\\61
+ |\mathchardef\beta="0\\62
+ |\mathchardef\chi="0\\63
+ |\mathchardef\delta="0\\64
+ |\mathchardef\epsilon="0\\65
+ |\mathchardef\phi="0\\66
+ |\mathchardef\gamma="0\\67
+ |\mathchardef\eta="0\\68
+ |\mathchardef\iota="0\\69
+ |\mathchardef\varphi="0\\6A
+ |\mathchardef\kappa="0\\6B
+ |\mathchardef\lambda="0\\6C
+ |\mathchardef\mu="0\\6D
+ |\mathchardef\ni="0\\6E
+ |\mathchardef\omicron="0\\6F
+\smallbreak
+ |\mathchardef\pi="0\\70
+ |\mathchardef\theta="0\\71
+ |\mathchardef\rho="0\\72
+ |\mathchardef\sigma="0\\73
+ |\mathchardef\tau="0\\74
+ |\mathchardef\upsilon="0\\75
+ |\mathchardef\varpi="0\\76
+ |\mathchardef\omega="0\\77
+ |\mathchardef\xi="0\\78
+ |\mathchardef\psi="0\\79
+ |\mathchardef\zeta="0\\7A
+ |\mathchardef\sim="3\\7E
+%
+\smallbreak
+ |\mathchardef\Upsilon="0\\A1
+ |\mathcode`'="0\\A2 \mathchardef\minutes="0\\A2
+ |\mathchardef\leq="3\\A3 \let\le=\leq
+ |\mathchardef\fractionslash="0\\A4
+ |\mathchardef\infinity="0\\A5
+%
+ |\mathchardef\clubsuit="0\\A7
+ |\mathchardef\diamondsuit="0\\A8
+ |\mathchardef\heartsuit="0\\A9
+ |\mathchardef\spadesuit="0\\AA
+ |\mathchardef\leftrightarrow="3\\AB
+ |\mathchardef\leftarrow="3\\AC \let\gets=\rightarrow
+ |\mathchardef\uparrow="3\\AD
+ |\mathchardef\rightarrow="3\\AE \let\to=\rightarrow
+ |\mathchardef\downarrow="3\\AF
+\smallskip
+ |\mathchardef\degrees="0\\B0
+ |\mathchardef\pm="2\\B1
+ |\mathchardef\seconds="0\\B2
+ |\mathchardef\geq="3\\B3 \let\ge=\geq
+ |\mathchardef\times="2\\B4
+ |\mathchardef\propto="3\\B5
+ |\mathchardef\partial="0\\B6
+%
+ |\mathchardef\div="2\\B8
+ |\mathchardef\neq="3\\B9 \let\ne=\neq
+ |\mathchardef\equiv="3\\BA
+ |\mathchardef\approx="3\\BB
+ |\mathchardef\ldots="6\\BC
+ |\edef\arrowvert{\delimiter"0\\BD33C }
+ |\mathchardef\relbar"3\\BE
+ |\edef\crlf{\noexpand\mathexbox\\BF}
+\smallbreak
+ |\mathchardef\aleph="0\\C0
+ |\mathchardef\Im="0\\C1
+ |\mathchardef\Re="0\\C2
+ |\mathchardef\wp="0\\C3
+ |\mathchardef\otimes="2\\C4
+ |\mathchardef\oplus="2\\C5
+ |\mathchardef\emptyset="0\\C6
+ |\mathchardef\cap="2\\C7
+ |\mathchardef\cup="2\\C8
+ |\mathchardef\supset="3\\C9
+ |\mathchardef\supseteq="3\\CA
+ |\mathchardef\nsubset="3\\CB
+ |\mathchardef\subset="3\\CC
+ |\mathchardef\subseteq="3\\CD
+ |\mathchardef\in="3\\CE
+ |\mathchardef\nin="3\\CF
+\smallbreak
+ |\mathchardef\angle="0\\D0
+ |\mathchardef\nabla="0\\D1
+ |\edef\registered{\noexpand\mathhexbox\\D2}
+ |\edef\copyright{\noexpand\mathhexbox\\D3}
+ |\edef\trademark{\noexpand\mathhexbox\\D4}
+ |\mathchardef\prod="1\\D5
+ |\edef\sqrt{\radical"\\D6370 }
+ |\mathchardef\cdot="2\\D7
+ |\mathchardef\neg="0\\D8 \let\lnot=\neg
+ |\mathchardef\wedge="3\\D9 \let\land=\wedge
+ |\mathchardef\vee="3\\DA \let\lor=\vee
+ |\mathchardef\Leftrightarrow="3\\DB
+ |\mathchardef\Leftarrow="3\\DC
+ |\mathchardef\Uparrow="3\\DD
+ |\mathchardef\Rightarrow="3\\DE
+ |\mathchardef\Downarrow="3\\DF
+\smallbreak
+ |\mathchardef\diamond="3\\E0
+ |\edef\langle{\delimiter"4\\E130A }
+ |\mathchardef\sum="1\\E5
+ |\edef\rangle{\delimiter"5\\F130B }
+\endcode
+ (I haven't bothered redefining those delimiters based on parts of
+ large delimiters.)
+
+%}}} adobe sy
+%{{{ ISO 8859-1 support
+\section{ISO 8859--1 input}
+
+ ISO~8859--1 (Latin-1) is the de facto standard character
+ encoding in a large numebr of countries, and so we shall try to
+ make a reasonable number of Latin-1 characters available.
+
+\subsec{Symbols}
+
+ Those characters whose code is the same as the code of the
+ corresponding glyph are left alone (with catcode~12). For
+ example, |^^a3| (pounds sterling) is left alone.
+
+ Those that have an equivalent |\chardef| (or |\mathchardef|)
+ name are defined with |\let| (for example, |^^a4| is |\let| to
+ |\currency|). Those with an equivalent standard ligature use
+ that ligature. These conventions hopefully insulate these
+ definitions against changes in the encoding.
+
+ The characters that represent marks for composite
+ letters\footnote*{This phrase is used on the grounds that the
+ word {\it accent} tends to provoke lectures on ways in which
+ many composite letters do {\it not} represent accents in the
+ languages in which they are used.} will form ligatures with the
+ following letter---one may write `{\tt\char"7F u\char"18 c}' to
+ get `\"u\c c'.
+
+ I don't use |\declareactivechar| on these because they would not
+ work properly in verbatim text with catcode~12. (Extending
+ verbatim text to include Latin-1 will take a few definitions
+ along the same lines as |\ttlq| etc.).
+\code
+ |\catcode`^^a0\active \let^^a0=~
+ |\catcode`^^a1\active \def^^a1{!`}
+% A2
+% A3
+ |\catcode`^^a4\active \let^^a4=\currency
+% A5
+% A6 XXX
+% A7
+ |\catcode`^^a8\active \let^^a8=\twodotsglyph
+ |\catcode`^^a9\active \let^^a9=\copyright
+ |\catcode`^^aa\active \let^^aa=\orda
+% AB
+ |\catcode`^^ac\active \let^^ac=\lnot
+ |\catcode`^^ad\active \let^^ad=\-
+ |\catcode`^^ae\active \let^^ae=\registered
+ |\catcode`^^af\active \let^^af=\macronglyph
+\smallbreak
+ |\catcode`^^b0\active \let^^b0=\degrees
+ |\catcode`^^b1\active \let^^b1=\pm
+ |\catcode`^^b2\active \def^^b2{^2}
+ |\catcode`^^b3\active \def^^b3{^3}
+ |\catcode`^^b4\active \let^^b4=\acuteglyph
+ |\catcode`^^b5\active \let^^b5=\mu
+% B6
+ |\catcode`^^b7\active \let^^b7=\gbdecimal
+ |\catcode`^^b8\active \let^^b8=\cedillaglyph
+ |\catcode`^^b9\active \def^^b9{^1}
+ |\catcode`^^ba\active \let^^ba=\ordo
+% BB
+ |\catcode`^^bc\active \def^^bc{\frac14}
+ |\catcode`^^bd\active \def^^bd{\frac12}
+ |\catcode`^^be\active \def^^be{\frac34}
+ |\catcode`^^bf\active \def^^bf{?`}
+\smallbreak
+ |\catcode`^^d7\active \let^^d7=\times
+ |\catcode`^^f7\active \let^^f7=\div
+\endcode
+
+\subsec{Composite letters}
+
+ The composite letters acer accessed via ligatures so that they
+ are immune to some possible changes in encoding.
+\code
+ |\catcode`^^c0\active \def^^c0{\graveglyph A}
+ |\catcode`^^c1\active \def^^c1{\acuteglyph A}
+ |\catcode`^^c2\active \def^^c2{\circumglyph A}
+ |\catcode`^^c3\active \def^^c3{\tildeglyph A}
+ |\catcode`^^c4\active \def^^c4{\twodotsglyph A}
+ |\catcode`^^c5\active \def^^c5{\ringglyph A}
+ |\catcode`^^c6\active \let^^c6=\AE
+ |\catcode`^^c7\active \def^^c7{\cedillaglyph C}
+ |\catcode`^^c8\active \def^^c8{\graveglyph E}
+ |\catcode`^^c9\active \def^^c9{\acuteglyph E}
+ |\catcode`^^ca\active \def^^ca{\circumglyph E}
+ |\catcode`^^cb\active \def^^cb{\twodotsglyph E}
+ |\catcode`^^cc\active \def^^cc{\graveglyph I}
+ |\catcode`^^cd\active \def^^cd{\acuteglyph I}
+ |\catcode`^^ce\active \def^^ce{\circumglyph I}
+ |\catcode`^^cf\active \def^^cf{\twodotsglyph I}
+\smallbreak
+% |\catcode`^^d0\active \chardef^^d0="?? % DH
+ |\catcode`^^d1\active \def^^d1{\tildeglyph N}
+ |\catcode`^^d2\active \def^^d2{\graveglyph O}
+ |\catcode`^^d3\active \def^^d3{\acuteglyph O}
+ |\catcode`^^d4\active \def^^d4{\circumglyph O}
+ |\catcode`^^d5\active \def^^d5{\tildeglyph O}
+ |\catcode`^^d6\active \def^^d6{\twodotsglyph O}
+ |\catcode`^^d8\active \let^^d8=\O
+ |\catcode`^^d9\active \def^^d9{\graveglyph U}
+ |\catcode`^^da\active \def^^da{\acuteglyph U}
+ |\catcode`^^db\active \def^^db{\circumglyph U}
+ |\catcode`^^dc\active \def^^dc{\twodotsglyph U}
+ |\catcode`^^dd\active \def^^dd{\acuteglyph Y}
+% |\catcode`^^de\active \def^^de{TH}
+ |\catcode`^^df\active \let^^df=\ss
+\smallbreak
+ |\catcode`^^e0\active \def^^e0{\acuteglyph a}
+ |\catcode`^^e1\active \def^^e1{\graveglyph a}
+ |\catcode`^^e2\active \def^^e2{\circumglyph a}
+ |\catcode`^^e3\active \def^^e3{\tildeglyph a}
+ |\catcode`^^e4\active \def^^e4{\twodotsglyph a}
+ |\catcode`^^e5\active \def^^e5{\ringglyph a}
+ |\catcode`^^e6\active \let^^e6=\ae
+ |\catcode`^^e7\active \def^^e7{\cedillaglyph c}
+ |\catcode`^^e8\active \def^^e8{\graveglyph e}
+ |\catcode`^^e9\active \def^^e9{\acuteglyph e}
+ |\catcode`^^ea\active \def^^ea{\circumglyph e}
+ |\catcode`^^eb\active \def^^eb{\twodotsglyph e}
+ |\catcode`^^ec\active \def^^ec{\graveglyph i}
+ |\catcode`^^ed\active \def^^ed{\acuteglyph i}
+ |\catcode`^^ee\active \def^^ee{\circumglyph i}
+ |\catcode`^^ef\active \def^^ef{\twodotsglyph i}
+\smallbreak
+% |\catcode`^^f0\active \def^^f0{dh}
+ |\catcode`^^f1\active \def^^f1{\tildeglyph n}
+ |\catcode`^^f2\active \def^^f2{\graveglyph o}
+ |\catcode`^^f3\active \def^^f3{\acuteglyph o}
+ |\catcode`^^f4\active \def^^f4{\circumglyph o}
+ |\catcode`^^f5\active \def^^f5{\tildeglyph o}
+ |\catcode`^^f6\active \def^^f6{\twodotsglyph o}
+ |\catcode`^^f8\active \let^^f8=\o
+ |\catcode`^^f9\active \def^^f9{\graveglyph u}
+ |\catcode`^^fa\active \def^^fa{\acuteglyph u}
+ |\catcode`^^fb\active \def^^fb{\circumglyph u}
+ |\catcode`^^fc\active \def^^fc{\twodotsglyph u}
+ |\catcode`^^fd\active \def^^fd{\acuteglyph y}
+% |\catcode`^^fe\active \def^^fe{th}
+ |\catcode`^^ff\active \def^^ff{\twodotsglyph y}
+\endcode
+
+%}}} ISO 8859-1 support
+%{{{ other hacks
+\section{Modifications to other PDCMAC macros}
+
+
+ For typewriter text, less drastic revision of the string is
+ necessary.
+\code
+ |\def\ttminus{--{}}
+ |\let\ttcircum=\asciicircum
+ |\let\tttilde=\asciitilde
+\endcode
+ Note that ASCII quote and backquote characters are still got
+ from accents because a `neutral' quotation mark is not adequate
+ for computer listings where both sorts of `quote mark' might be
+ appear, with different meanings.
+
+
+%}}} other hacks
+\endcodefile
+\enddocument
+\bye
+%}}} pdcadobe.dtx
+
+%Local variables:
+%fill-prefix: "\t"
+%fold-folded-p: t
+%End:
+