| blob | 99a4c55f7c9f311e1aa58946aa6f03b0d76aab37 |
1 % \iffalse meta-comment
2 %
3 % Copyright 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009
4 % The LaTeX3 Project and any individual authors listed elsewhere
5 % in this file.
6 %
7 % This file is part of the LaTeX base system.
8 % -------------------------------------------
9 %
10 % It may be distributed and/or modified under the
11 % conditions of the LaTeX Project Public License, either version 1.3c
12 % of this license or (at your option) any later version.
13 % The latest version of this license is in
14 % http://www.latex-project.org/lppl.txt
15 % and version 1.3c or later is part of all distributions of LaTeX
16 % version 2005/12/01 or later.
17 %
18 % This file has the LPPL maintenance status "maintained".
19 %
20 % The list of all files belonging to the LaTeX base distribution is
21 % given in the file `manifest.txt'. See also `legal.txt' for additional
22 % information.
23 %
24 % The list of derived (unpacked) files belonging to the distribution
25 % and covered by LPPL is defined by the unpacking scripts (with
26 % extension .ins) which are part of the distribution.
27 %
28 % \fi
29 %\iffalse % this is a METACOMMENT !
30 %
31 %% File `oldlfont.dtx'.
32 %% Copyright (C) 1989-1995 Frank Mittelbach and Rainer Sch\"opf,
33 %% all rights reserved.
34 %
35 %<*dtx>
36 \ProvidesFile{oldlfont.dtx}
37 %</dtx>
38 %<package>\NeedsTeXFormat{LaTeX2e}
39 %<package>\ProvidesPackage{oldlfont}
40 %<driver> \ProvidesFile{oldlfont.drv}
41 %<*!latex209>
42 % \fi
43 % \ProvidesFile{oldlfont.dtx}
44 [1994/11/29 v2.2k Standard LaTeX package]
45 %
46 % \iffalse
47 %</!latex209>
48 %<*driver>
49 \documentclass{ltxdoc}
50 \begin{document}
51 \DocInput{oldlfont.dtx}
52 \end{document}
53 %</driver>
54 % \fi
55 %
56 % \CheckSum{117}
57 %
58 %% \CharacterTable
59 %% {Upper-case \A\B\C\D\E\F\G\H\I\J\K\L\M\N\O\P\Q\R\S\T\U\V\W\X\Y\Z
60 %% Lower-case \a\b\c\d\e\f\g\h\i\j\k\l\m\n\o\p\q\r\s\t\u\v\w\x\y\z
61 %% Digits \0\1\2\3\4\5\6\7\8\9
62 %% Exclamation \! Double quote \" Hash (number) \#
63 %% Dollar \$ Percent \% Ampersand \&
64 %% Acute accent \' Left paren \( Right paren \)
65 %% Asterisk \* Plus \+ Comma \,
66 %% Minus \- Point \. Solidus \/
67 %% Colon \: Semicolon \; Less than \<
68 %% Equals \= Greater than \> Question mark \?
69 %% Commercial at \@ Left bracket \[ Backslash \\
70 %% Right bracket \] Circumflex \^ Underscore \_
71 %% Grave accent \` Left brace \{ Vertical bar \|
72 %% Right brace \} Tilde \~}
73 %
74 %
75 %
76 % \providecommand\dst{\expandafter{\normalfont\scshape docstrip}}
77 %
78 % \GetFileInfo{oldlfont.dtx}
79 %
80 % \title{The file \texttt{oldlfont.dtx} for use with
81 % \LaTeXe.\thanks{This file has version
82 % number \fileversion, dated \filedate.}\\[2pt]
83 % It contains the code for \texttt{oldlfont.sty}}
84 %
85 % \author{Frank Mittelbach}
86 %
87 % \maketitle
88 %
89 % \section{Introduction}
90 %
91 % This file contains the code for the \texttt{oldlfont} package
92 % which emulates the following \LaTeX~2.09 font commands:
93 % \begin{itemize}
94 % \item The two-letter font-changing commands |\rm|, etc.~are
95 % defined to cancel each other out as they did in \LaTeX~2.09.
96 % \item The two-letter font-changing commands are allowed in math
97 % mode.
98 % \item The |latexsym| package is loaded.
99 % \end{itemize}
100 % For full compatibility mode, the file |latex209.def| is loaded by
101 % |\documentstyle|.
102 %
103 % The following modules are used in the implementation to direct
104 % \dst{} in generating the external files:
105 % \begin{center}
106 % \begin{tabular}{ll}
107 % driver & produce a documentation driver file \\
108 % package & produce |oldlfont.sty| \\
109 % latex209 & produce part of |latex209.def|
110 % \end{tabular}
111 % \end{center}
112 %
113 % \StopEventually{}
114 %
115 % \changes{v2.2k}{1995/11/29}{Remove duplicate driver code.}
116 %
117 % \section{The Code}
118 %
119 %
120 % \begin{macro}{\math@bgroup}
121 % \begin{macro}{\math@egroup}
122 % To make \meta{math alphabet identifier} work like simple font
123 % switches we change the meaning of |\math@bgroup| and
124 % |\math@egroup| to |\@empty|. This emulates the behavior of
125 % \texttt{oldlfont.sty} in NFSS1 setups. These definitions are not
126 % part of \texttt{latex209} automatically, since to emulate 2.09
127 % they are not necessary (all standard fonts are declared as math
128 % symbol fonts).
129 % \changes{v2.2f}{1994/05/05}{Added saved versions of the
130 % math-groupers, CAR}
131 % \changes{v2.2g}{1994/05/09}{Moved outside latex209 part}
132 % \begin{macrocode}
133 \let\math@bgroup\@empty
134 \let\math@egroup\@empty
135 \let \@@math@bgroup \math@bgroup
136 \let \@@math@egroup \math@egroup
137 % \end{macrocode}
138 % \end{macro}
139 % \end{macro}
140 %
141 %
142 % The rest of this document describes code that is used in
143 % |oldlfont.sty| and |latex209.def|.
144 % \begin{macrocode}
145 %<*package|latex209>
146 % \end{macrocode}
147 %
148 % When emulating the old settings we don't want a lot of NFSS
149 % information being displayed. Thus we required that the
150 % \texttt{tracefnt} package is loaded with the option
151 % \texttt{errorshow}.
152 % \begin{macrocode}
153 \RequirePackage[errorshow]{tracefnt}
154 % \end{macrocode}
155 %
156 % We define math \emph{alphabet} identifiers for the typefaces
157 % described in the \LaTeX{} manual. This is straightforward. Some
158 % are already defined by the kernel code.
159 % And here are the other ones defined by the old \LaTeX{}. They all
160 % get declared as math symbol font alphabets. Thus we first
161 % allocate the additional symbol fonts.
162 % \begin{macrocode}
163 \DeclareSymbolFont{bold}{OT1}{cmr}{bx}{n}
164 \DeclareSymbolFont{sans}{OT1}{cmss}{m}{n}
165 \DeclareSymbolFont{typewriter}{OT1}{cmtt}{m}{n}
166 \DeclareSymbolFont{italic}{OT1}{cmr}{m}{it}
167 \DeclareSymbolFont{smallcaps}{OT1}{cmr}{m}{sc}
168 \DeclareSymbolFont{slanted}{OT1}{cmr}{m}{sl}
169 % \end{macrocode}
170 % And here are the corresponding math identifiers.
171 % \begin{macrocode}
172 \DeclareSymbolFontAlphabet\mathbf{bold}
173 \DeclareSymbolFontAlphabet\mathsf{sans}
174 \DeclareSymbolFontAlphabet\mathtt{typewriter}
175 \DeclareSymbolFontAlphabet\mathsc{smallcaps}
176 \DeclareSymbolFontAlphabet\mathsl{slanted}
177 % \end{macrocode}
178 % We undefine the old |\mit| and |\cal| macros (whatever meaning
179 % they have) and reallocate them as symbol font alphabets.
180 % \begin{macrocode}
181 \let\mit\undefined
182 \let\cal\undefined
183 \let\mathit\undefined
184 \DeclareSymbolFontAlphabet\mathit{italic}
185 \DeclareSymbolFontAlphabet{\mit}{letters}
186 \DeclareSymbolFontAlphabet{\cal}{symbols}
187 % \end{macrocode}
188 %
189 % We define the font commands for selecting the typeface. They are
190 % probably defined by the document class/style but we want to force
191 % the old meaning.
192 %
193 % And here are the definition as they were in \LaTeX~2.09 but
194 % translated into NFSS2 language.
195 % \changes{v2.2h}{1994/05/11}{DPC use \cs{DeclareProtectedCommand}}
196 % \changes{v2.2i}{1994/05/13}{DPC renamed to \cs{DeclareRobustCommand}}
197 % \begin{macrocode}
198 \DeclareRobustCommand\rm{\normalfont\rmfamily\mathgroup\symoperators}
199 \DeclareRobustCommand\sf{\normalfont\sffamily\mathgroup\symsans}
200 \DeclareRobustCommand\sl{\normalfont\slshape\mathgroup\symslanted}
201 \DeclareRobustCommand\bf{\normalfont\bfseries\mathgroup\symbold}
202 \DeclareRobustCommand\sc{\normalfont\scshape\mathgroup\symsmallcaps}
203 \DeclareRobustCommand\it{\normalfont\itshape\mathgroup\symitalic}
204 \DeclareRobustCommand\tt{\normalfont\ttfamily\mathgroup\symtypewriter}
205 % \end{macrocode}
206 % We also have to define the \emph{emphasize} font change command
207 % (i.e.\ |\em|). This command will look whether the current font is
208 % sloped (i.e.\ has a positive |\fontdimen1|) and will then select
209 % either |\rm| or |\it|.
210 % \begin{macrocode}
211 \DeclareRobustCommand\em{%
212 \@nomath\em
213 \ifdim \fontdimen\@ne\font>\z@\rm\else\it\fi}
214 % \end{macrocode}
215 %
216 % \begin{macro}{\@setfontsize}
217 % Font size changes are handled using the |\@setfontsize| command
218 % (in new class files) or by the |@setsize| command in old document
219 % style files. The latter is now defined to call |\@setfontsize| in
220 % the NFSS2 kernel code.
221 % Thus to make all size changing commands automatically return to
222 % the normal font of the document we only have to slightly modify
223 % the definition of |\@setfontsize| by adding a |\normalfont|
224 % command to it.
225 % \changes{v2.2j}{1994/11/06}{Use \cs{@typeset@protect}}
226 % \begin{macrocode}
227 \def\@setfontsize#1#2#3{\@nomath#1%
228 \ifx\protect\@typeset@protect
229 \let\@currsize#1%
230 \fi
231 \fontsize{#2}{#3}\normalfont}
232 % \end{macrocode}
233 % \end{macro}
234 %
235 %
236 % \begin{macro}{\non@alpherr}
237 % Since we emulate the old syntax we also have to silently ignore
238 % uses of a math alphabet outside math mode. Since we now use the
239 % |\sym...| switches the following setting is not longer necessary.
240 % \begin{macrocode}
241 %\let\non@alpherr\@gobble
242 % \end{macrocode}
243 % \end{macro}
244 %
245 % \begin{macro}{\not@math@alphabet}
246 % But we need to disable the error message that is generated from
247 % |\bfseries| etc.
248 % \begin{macrocode}
249 \let\not@math@alphabet\@gobbletwo
250 % \end{macrocode}
251 % \end{macro}
252 %
253 %
254 % We left out the special \LaTeX{} fonts which are not automaticly
255 % included in the base version of the font selection since these
256 % fonts contain only a few characters which are also included in
257 % the AMS fonts so anybody who is using these fonts doesn't need
258 % them. But for compatiblity reasons we will define these symbols.
259 %
260 % \begin{macrocode}
261 \RequirePackage{latexsym}
262 %</package|latex209>
263 % \end{macrocode}
264 %
265 % \DeleteShortVerb{\|}
266 % \Finale
267 \endinput