%% 
%% This is file `/usr2/distrib/latex209/nfss/plf_tracefnt.sty' generated
%% on <1991/11/22> with the docstrip utility (v1.1k). 
%% 
%% The original source files were:
%% 
%% tracefnt.doc  (with modules: `trace,style')

%% 
%% Copyright (C) 1989,1990,1991 by Frank Mittelbach, Rainer Schoepf. 
%% All rights reserved. 
%% 
%% This file is part of the NFSS (New Font Selection Scheme) package. 
%% 
%% IMPORTANT NOTICE: 
%% 
%% You are not allowed to change this file. You may however copy this file 
%% to a file with a different name and then change the copy if you obey 
%% the restrictions on file changes described in readme.mz. 
%% 
%% You are allowed to distribute this file under the condition that it is 
%% distributed together with all files mentioned in readme.mz3. If you 
%% receive only some of these files from someone, complain! 
%% 
%% You are NOT ALLOWED to distribute this file alone. You are NOT ALLOWED 
%% to take money for the distribution or use of either this file or a 
%% changed version, except for a nominal charge for copying etc. 
%% 
%% For error reports in case of UNCHANGED versions see readme files. 
%% 
%% Please do not request updates from us directly. Distribution is done 
%% through Mail-Servers and TeX organizations. 
%% 
\def\fileversion{v1.0r}
\def\filedate{90/08/27}
\def\docdate {90/04/05}

%% \CheckSum{336}
%% \CharacterTable
%%  {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
%%   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
%%   Digits        \0\1\2\3\4\5\6\7\8\9
%%   Exclamation   \!     Double quote  \"     Hash (number) \#
%%   Dollar        \$     Percent       \%     Ampersand     \&
%%   Acute accent  \'     Left paren    \(     Right paren   \)
%%   Asterisk      \*     Plus          \+     Comma         \,
%%   Minus         \-     Point         \.     Solidus       \/
%%   Colon         \:     Semicolon     \;     Less than     \<
%%   Equals        \=     Greater than  \>     Question mark \?
%%   Commercial at \@     Left bracket  \[     Backslash     \\
%%   Right bracket \]     Circumflex    \^     Underscore    \_
%%   Grave accent  \`     Left brace    \{     Vertical bar  \|
%%   Right brace   \}     Tilde         \~}
%%
\@ifundefined{new@fontshape}
 {\errmessage{The style option `plf_tracefnt' does not make sense if you
              do not use a format with the new font selection scheme.}
  \endinput}
  {}
 \immediate\write\sixt@@n{Style Option: `plf_tracefnt'
 \fileversion\space <\filedate>  (FMi and RmS)}
\immediate\write\sixt@@n{English Documentation
 \@spaces\@spaces\space  <\docdate>  (FMi and RmS)}
\immediate\write\sixt@@n{Includes module(s):
 trace
}
\def\extract@font{%
    \def\@tempa{\def\extract@fontinfo####1}%
    \edef\@tempb{<\expandafter\strip@prefix\meaning\f@size>}%
    \expandafter\@tempa\@tempb##2##3<##4\@nil{%
      \global\expandafter\font \font@name
           \ifcase0##2##3\relax\or
                   ##3
                    \font@warning{Font/shape
                              `\f@family/\f@series/\f@shape'
                              in size \@tempb\space  not available}%
                    \font@warning{Using external font `##3'
                                    instead}\else
                  \default@errfont \errhelp\nofont@help
                         \errmessage{Font \expandafter
                                    \string\font@name\space
                                    not found}%
               \fi
   \ifnum \tracingfonts >\@ne
   \typeout{Loading external  ##2##3 as \font@name
            \on@line}\fi
              }%
    \edef\font@info{\expandafter\expandafter\expandafter\string
        \csname \f@family/\f@series/\f@shape \endcsname\@tempb}%
    \expandafter\extract@fontinfo\font@info 3<\@nil
    \csname +\f@family \expandafter
       \endcsname \font@name \relax}

\def\p@selectfont{%
    \xdef\font@name{%
      \csname\f@family/\f@series/\f@shape/\f@size\endcsname}%
    \pickup@font
    \font@name
 \ifnum \tracingfonts>\tw@
   \typeout{Switching to \font@name \on@line}\fi
    \ifx \glb@currsize \lcl@currsize
     \else
    \setnew@baselineskip
    \baselineskip\baselinestretch\baselineskip
    \setbox\strutbox\hbox{\vrule\@height.7\baselineskip
        \@depth.3\baselineskip \@width\z@}%
    \normalbaselineskip\baselineskip
 \ifnum \tracingfonts>\tw@
   \typeout{Changing size or baselineskip ...}\fi
     \glb@settings \the\every@size
 \ifnum \tracingfonts>\tw@
   \aftergroup\type@restoreinfo \fi
       \aftergroup\glb@settings \fi
 \ifnum \tracingfonts>\tw@
  \gdef\font@restore{\xdef\font@name{%
    \csname\f@family/\f@series/\f@shape/\f@size\endcsname}%
    \typeout{Restoring \space\space\space\font@name \on@line}%
    \global\let\font@restore\@empty}%
   \aftergroup\font@restore
 \fi
    }
 \def\type@restoreinfo{\typeout{Restoring size
                       or baselineskip ...}}
\def\baselinestretch{1}
\newtoks\every@size
\every@size={}
\def\use@mathgroup#1#2{\relax\ifmmode
 \ifnum \tracingfonts>\tw@
   \count@#2\relax
   \typeout{Switching to \string\mathgroup\space #2
            (\the\count@)\on@line}\fi
     \math@bgroup
         #1\mathgroup#2\relax
     \expandafter\math@egroup\fi}%
 \ifx\math@bgroup\begingroup
   \def\math@egroup#1{#1\endgroup
     \ifnum \tracingfonts>\tw@
    \typeout{Restoring \space\space\space\string\mathgroup\space
       (\ifnum\mathgroup=\m@ne default\else \the\mathgroup \fi)%
             \on@line}\fi}
 \fi
\def\getanddefine@fonts#1#2{%
 \ifnum \tracingfonts>\tw@
 \count@#1\relax
   \typeout{Setting up \string\mathgroup\space #1 (\the\count@)
            as \string#2 \f@size/\sf@size/\ssf@size\on@line}\fi
  \xdef\font@name{\csname \string#2/\f@size\endcsname}%
  \pickup@font \let\textfont@name\font@name
  \xdef\font@name{\csname \string#2/\sf@size\endcsname}%
  \pickup@font \let\scriptfont@name\font@name
  \xdef\font@name{\csname \string#2/\ssf@size\endcsname}%
  \pickup@font
  \edef\math@fonts{\math@fonts
               \textfont#1\textfont@name
               \scriptfont#1\scriptfont@name
               \scriptscriptfont#1\font@name}%
    }
\def\tracingfonts{\font@warning{\string\tracingfonts\space
                  command not provided.^^J
                  Use `plf_tracefnt' option in \string\documentstyle\space
                  command.^^J Command found:}%
                  \count@}
   \newcount\tracingfonts
 \tracingfonts=1
\def\font@warning#1{%
 \ifnum\tracingfonts>\z@
 \errhelp{This is only a warning message but it gives you^^J%
          time to think about the font substitution above.}%
 \errmessage{Warning: #1}\else
          \immediate\write\sixt@@n{Warning: #1\on@line.}%
 \fi
          }

\endinput
%% 
%% End of file `/usr2/distrib/latex209/nfss/plf_tracefnt.sty'.