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+% \iffalse meta-comment
+%
+% Copyright 1993-2016
+% The LaTeX3 Project and any individual authors listed elsewhere
+% in this file.
+%
+% This file is part of the LaTeX base system.
+% -------------------------------------------
+%
+% It may be distributed and/or modified under the
+% conditions of the LaTeX Project Public License, either version 1.3c
+% of this license or (at your option) any later version.
+% The latest version of this license is in
+% https://www.latex-project.org/lppl.txt
+% and version 1.3c or later is part of all distributions of LaTeX
+% version 2005/12/01 or later.
+%
+% This file has the LPPL maintenance status "maintained".
+%
+% The list of all files belonging to the LaTeX base distribution is
+% given in the file `manifest.txt'. See also `legal.txt' for additional
+% information.
+%
+% The list of derived (unpacked) files belonging to the distribution
+% and covered by LPPL is defined by the unpacking scripts (with
+% extension .ins) which are part of the distribution.
+%
+% \fi
+%\iffalse % this is a METACOMMENT !
+%
+%% File `newlfont.dtx'.
+%% Copyright (C) 1989-1998 Frank Mittelbach and Rainer Sch\"opf,
+%% all rights reserved.
+%
+%<*dtx>
+ \ProvidesFile{newlfont.dtx}
+%</dtx>
+%<package>\NeedsTeXFormat{LaTeX2e}
+%<package>\ProvidesPackage{newlfont}
+%<driver> \ProvidesFile{newlfont.drv}
+% \fi
+% \ProvidesFile{newlfont.dtx}
+ [1998/08/17 v2.2m Standard LaTeX package]
+%
+% \iffalse
+%<*driver>
+\documentclass{ltxdoc}
+\begin{document}
+\DocInput{newlfont.dtx}
+\end{document}
+%</driver>
+% \fi
+%
+%
+%
+%
+% \changes{v2.2a}{1994/01/17}{Added missing definitions to support
+% newlfont in compat mode}
+% \changes{v2.2b}{1994/01/27}{Removed if@compat test since
+% these settings need also be executed in 2e mode.}
+% \changes{v2.2c}{1994/03/06}{Added def for \cs{cal} and \cs{mit}}
+% \changes{v2.2l}{1995/11/29}{Remove duplicate driver code.}
+% \changes{v2.2m}{1998/08/17}{(RmS) Minor documentation fixes.}
+%
+% \providecommand\dst{\expandafter{\normalfont\scshape docstrip}}
+%
+%
+% \GetFileInfo{newlfont.dtx}
+%
+% \title{The file \texttt{newlfont.dtx} for use with
+% \LaTeXe.\thanks{This file has version
+% number \fileversion, dated \filedate.}\\[2pt]
+% It contains the code for \texttt{newlfont.sty}}
+%
+% \author{Frank Mittelbach}
+%
+% \MaintainedByLaTeXTeam{latex}
+% \maketitle
+%
+% \section{Introduction}
+%
+% This file contains the code for the \texttt{newlfont} package
+% which provides defines commands like |\rm| to behave as with
+% NFSS1, i.e., to change one font attribute without resetting the
+% other attributes.
+%
+% \StopEventually{}
+%
+%
+% \section{The Code}
+%
+% \begin{macrocode}
+%<*package>
+% \end{macrocode}
+%
+% We define the font commands for selecting the typeface. They are
+% probably defined by the document class/style but we want to force
+% the old meaning from NFSS1.
+%
+% \changes{v2.2g}{1994/05/11}{DPC Remove definitions of \cs{prm} etc.}
+% \begin{macrocode}
+\let\rm\rmfamily
+\let\sf\sffamily
+\let\tt\ttfamily
+\let\bf\bfseries
+\let\sl\slshape
+\let\sc\scshape
+\let\it\itshape
+% \end{macrocode}
+% We also have to define the \emph{emphasize} font change command
+% (i.e.\ |\em|). This command will look whether the current font is
+% sloped (i.e.\ has a positive |\fontdimen1|) and will then select
+% either an upright or italic font.
+% \changes{v2.2g}{1994/05/11}{DPC use \cs{DeclareProtectedCommand}}
+% \changes{v2.2h}{1994/05/13}{DPC renamed to \cs{DeclareRobustCommand}}
+% \begin{macrocode}
+\DeclareRobustCommand\em{%
+ \@nomath\em
+ \ifdim \fontdimen\@ne\font >\z@\upshape \else \itshape \fi}
+% \end{macrocode}
+%
+% For compatibility with old sources we should define the following
+% commands although their use in new documents is discouraged.
+% \begin{macrocode}
+\let\mediumseries\mdseries
+\let\normalshape\upshape
+% \end{macrocode}
+%
+% In case \texttt{newlfont} is used in compatibility mode, eg
+%\begin{verbatim}
+% \documentstyle[newlfont]{article}
+%\end{verbatim}
+% or with the \texttt{oldlfont} package already loaded
+% we have to undo a number of settings changed by the compatibility
+% mode for \LaTeX~2.09 documents.
+%
+% |\@setfontsize| should not have a |\reset@font| included.
+% \changes{v2.2j}{1994/11/06}{Use \cs{@typeset@protect}}
+% \begin{macrocode}
+\def\@setfontsize#1#2#3{\@nomath#1%
+ \ifx\protect\@typeset@protect
+ \let\@currsize#1%
+ \fi
+ \fontsize{#2}{#3}\selectfont}
+% \end{macrocode}
+% Math alphabet identifiers should have an argument.
+% \changes{v2.2d}{1994/03/10}{Changed \cs{begingroup}/\cs{endgroup} to
+% \cs{bgroup}/\cs{egroup}.}
+% \changes{v2.2f}{1994/05/05}{Added saved versions of the
+% math-groupers, CAR}
+% \begin{macrocode}
+\let\math@bgroup\bgroup
+\def\math@egroup#1{#1\egroup}
+\let \@@math@bgroup \math@bgroup
+\let \@@math@egroup \math@egroup
+% \end{macrocode}
+% Warn again, if text font commands are used in math
+% (same macro as in \texttt{lfonts.dtx}).
+% \changes{v2.2e}{1994/04/21}{Changed error message}
+% \changes{v2.2k}{1995/04/02}{add \cs{noexpand} to second part of message}
+% \begin{macrocode}
+\def\not@math@alphabet#1#2{%
+ \relax
+ \ifmmode
+ \@latex@error{Command \noexpand#1invalid in math mode}%
+ {%
+ Please
+ \ifx#2\relax
+ define a new math alphabet^^J%
+ if you want to use a special font in math mode%
+ \else
+% \end{macrocode}
+% We have to add |\noexpand| below to prevent expansion of |#2|. In
+% case of |#1| we can omit this (due to the current definition of
+% robust commands since they do come out right there :-).
+% \begin{macrocode}
+ use the math alphabet \noexpand#2instead of
+ the #1command%
+ \fi
+ .
+ }%
+ \fi}
+% \end{macrocode}
+%
+% In NFSS1 math alphabets had arguments so we have to change |\cal|
+% and |\mit| which by default are defined to behave like in
+% \LaTeX209.
+% \begin{macrocode}
+\let\pcal\@undefined
+\let\cal\mathcal
+\let\pmit\@undefined
+\let\mit\mathnormal
+% \end{macrocode}
+%
+% The NFSS1 version of \texttt{newlfont} included the \LaTeX{}
+% symbols. And that is probably all there is.
+% \begin{macrocode}
+\RequirePackage{latexsym}
+%</package>
+% \end{macrocode}
+%
+%
+% \Finale
+\endinput