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Diff for /gforth/Attic/texinfo.tex between versions 1.1 and 1.4

version 1.1, 1995/01/10 18:57:47 version 1.4, 1997/04/05 16:49:20
Line 1 Line 1
 %% TeX macros to handle texinfo files  %% TeX macros to handle texinfo files
   
 %   Copyright (C) 1985, 1986, 1988, 1990, 1991 Free Software Foundation, Inc.  %  Copyright (C) 1985, 86, 88, 90, 91, 92, 93,
   %                94, 95, 1996 Free Software Foundation, Inc.
   
 %This texinfo.tex file is free software; you can redistribute it and/or  %This texinfo.tex file is free software; you can redistribute it and/or
 %modify it under the terms of the GNU General Public License as  %modify it under the terms of the GNU General Public License as
Line 14 Line 15
   
 %You should have received a copy of the GNU General Public License  %You should have received a copy of the GNU General Public License
 %along with this texinfo.tex file; see the file COPYING.  If not, write  %along with this texinfo.tex file; see the file COPYING.  If not, write
 %to the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139,  %to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 %USA.  %Boston, MA 02111-1307, USA.
   
   
 %In other words, you are welcome to use, share and improve this program.  %In other words, you are welcome to use, share and improve this program.
 %You are forbidden to forbid anyone else to use, share and improve  %You are forbidden to forbid anyone else to use, share and improve
 %what you give them.   Help stamp out software-hoarding!  %what you give them.   Help stamp out software-hoarding!
   
 \def\texinfoversion{2.72}  
   % Send bug reports to bug-texinfo@prep.ai.mit.edu.
   % Please include a *precise* test case in each bug report.
   
   
   % Make it possible to create a .fmt file just by loading this file:
   % if the underlying format is not loaded, start by loading it now.
   % Added by gildea November 1993.
   \expandafter\ifx\csname fmtname\endcsname\relax\input plain\fi
   
   % This automatically updates the version number based on RCS.
   \def\deftexinfoversion$#1: #2 ${\def\texinfoversion{#2}}
   \deftexinfoversion$Revision$
 \message{Loading texinfo package [Version \texinfoversion]:}  \message{Loading texinfo package [Version \texinfoversion]:}
 \message{}  
   
 % Print the version number if in a .fmt file.  % If in a .fmt file, print the version number
 \everyjob{\message{[Texinfo version \texinfoversion]}\message{}}  % and turn on active characters that we couldn't do earlier because
   % they might have appeared in the input file name.
   \everyjob{\message{[Texinfo version \texinfoversion]}\message{}
     \catcode`+=\active \catcode`\_=\active}
   
 % Save some parts of plain tex whose names we will redefine.  % Save some parts of plain tex whose names we will redefine.
   
 \let\ptexlbrace=\{  
 \let\ptexrbrace=\}  
 \let\ptexdots=\dots  
 \let\ptexdot=\.  
 \let\ptexstar=\*  
 \let\ptexend=\end  
 \let\ptexbullet=\bullet  
 \let\ptexb=\b  \let\ptexb=\b
   \let\ptexbullet=\bullet
 \let\ptexc=\c  \let\ptexc=\c
   \let\ptexcomma=\,
   \let\ptexdot=\.
   \let\ptexdots=\dots
   \let\ptexend=\end
   \let\ptexequiv = \equiv
 \let\ptexi=\i  \let\ptexi=\i
   \let\ptexlbrace=\{
   \let\ptexrbrace=\}
   \let\ptexstar=\*
 \let\ptext=\t  \let\ptext=\t
 \let\ptexl=\l  \let\ptextilde=\~
 \let\ptexL=\L  
   % Be sure we're in horizontal mode when doing a tie, since we make space
   % equivalent to this in @example-like environments. Otherwise, a space
   % at the beginning of a line will start with \penalty -- and
   % since \penalty is valid in vertical mode, we'd end up putting the
   % penalty on the vertical list instead of in the new paragraph.
   {\catcode`@ = 11
    % Avoid using \@M directly, because that causes trouble
    % if the definition is written into an index file.
    \global\let\tiepenalty = \@M
    \gdef\tie{\leavevmode\penalty\tiepenalty\ }
   }
   \let\~ = \tie                  % And make it available as @~.
   
 \def\tie{\penalty 10000\ }     % Save plain tex definition of ~.  
   
 \message{Basics,}  \message{Basics,}
 \chardef\other=12  \chardef\other=12
Line 54 Line 82
 % starts a new line in the output.  % starts a new line in the output.
 \newlinechar = `^^J  \newlinechar = `^^J
   
   % Set up fixed words for English.
   \ifx\putwordChapter\undefined{\gdef\putwordChapter{Chapter}}\fi%
   \def\putwordInfo{Info}%
   \ifx\putwordSee\undefined{\gdef\putwordSee{See}}\fi%
   \ifx\putwordsee\undefined{\gdef\putwordsee{see}}\fi%
   \ifx\putwordfile\undefined{\gdef\putwordfile{file}}\fi%
   \ifx\putwordpage\undefined{\gdef\putwordpage{page}}\fi%
   \ifx\putwordsection\undefined{\gdef\putwordsection{section}}\fi%
   \ifx\putwordSection\undefined{\gdef\putwordSection{Section}}\fi%
   \ifx\putwordTableofContents\undefined{\gdef\putwordTableofContents{Table of Contents}}\fi%
   \ifx\putwordShortContents\undefined{\gdef\putwordShortContents{Short Contents}}\fi%
   \ifx\putwordAppendix\undefined{\gdef\putwordAppendix{Appendix}}\fi%
   
   % Ignore a token.
   %
   \def\gobble#1{}
   
 \hyphenation{ap-pen-dix}  \hyphenation{ap-pen-dix}
 \hyphenation{mini-buf-fer mini-buf-fers}  \hyphenation{mini-buf-fer mini-buf-fers}
 \hyphenation{eshell}  \hyphenation{eshell}
   
 % Margin to add to right of even pages, to left of odd pages.  % Margin to add to right of even pages, to left of odd pages.
 \newdimen \bindingoffset  \bindingoffset=0pt  \newdimen \bindingoffset  
 \newdimen \normaloffset   \normaloffset=\hoffset  \newdimen \normaloffset   
 \newdimen\pagewidth \newdimen\pageheight  \newdimen\pagewidth \newdimen\pageheight
 \pagewidth=\hsize \pageheight=\vsize  
   
 % Sometimes it is convenient to have everything in the transcript file  % Sometimes it is convenient to have everything in the transcript file
 % and nothing on the terminal.  We don't just call \tracingall here,  % and nothing on the terminal.  We don't just call \tracingall here,
 % since that produces some useless output on the terminal.  % since that produces some useless output on the terminal.
 %  %
 \def\gloggingall{\begingroup \globaldefs = 1 \loggingall \endgroup}%  \def\gloggingall{\begingroup \globaldefs = 1 \loggingall \endgroup}%
 \def\loggingall{\tracingcommands2 \tracingstats2   \def\loggingall{\tracingcommands2 \tracingstats2
    \tracingpages1 \tracingoutput1 \tracinglostchars1      \tracingpages1 \tracingoutput1 \tracinglostchars1
    \tracingmacros2 \tracingparagraphs1 \tracingrestores1      \tracingmacros2 \tracingparagraphs1 \tracingrestores1
    \showboxbreadth\maxdimen\showboxdepth\maxdimen     \showboxbreadth\maxdimen\showboxdepth\maxdimen
 }%  }%
   
Line 83 Line 127
 \newdimen\cornerlong \newdimen\cornerthick  \newdimen\cornerlong \newdimen\cornerthick
 \newdimen \topandbottommargin  \newdimen \topandbottommargin
 \newdimen \outerhsize \newdimen \outervsize  \newdimen \outerhsize \newdimen \outervsize
 \cornerlong=1pc\cornerthick=.3pt        % These set size of cropmarks  \cornerlong=1pc\cornerthick=.3pt        % These set size of cropmarks
 \outerhsize=7in  \outerhsize=7in
 %\outervsize=9.5in  %\outervsize=9.5in
 % Alternative @smallbook page size is 9.25in  % Alternative @smallbook page size is 9.25in
Line 93 Line 137
 %---------------------End change-----------------------  %---------------------End change-----------------------
   
 % \onepageout takes a vbox as an argument.  Note that \pagecontents  % \onepageout takes a vbox as an argument.  Note that \pagecontents
 % does insertions itself, but you have to call it yourself.  % does insertions, but you have to call it yourself.
 \chardef\PAGE=255  \output={\onepageout{\pagecontents\PAGE}}  \chardef\PAGE=255  \output={\onepageout{\pagecontents\PAGE}}
 \def\onepageout#1{\hoffset=\normaloffset  \def\onepageout#1{%
 \ifodd\pageno  \advance\hoffset by \bindingoffset    \hoffset=\normaloffset
 \else \advance\hoffset by -\bindingoffset\fi    \ifodd\pageno  \advance\hoffset by \bindingoffset
 {\escapechar=`\\\relax % makes sure backslash is used in output files.    \else \advance\hoffset by -\bindingoffset\fi
 \shipout\vbox{{\let\hsize=\pagewidth \makeheadline} \pagebody{#1}%    {%
 {\let\hsize=\pagewidth \makefootline}}}%      \escapechar = `\\ % use backslash in output files.
 \advancepageno \ifnum\outputpenalty>-20000 \else\dosupereject\fi}      \indexdummies
       \shipout\vbox{%
         {\let\hsize=\pagewidth \makeheadline}%
         \pagebody{#1}%
         {\let\hsize=\pagewidth \makefootline}%
       }%
     }%
     \advancepageno
     \ifnum\outputpenalty>-20000 \else\dosupereject\fi
   }
   
 %%%% For @cropmarks command %%%%  %%%% For @cropmarks command %%%%
   
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 % site of the centerlined box.  (P. A. MacKay, 12 November, 1986)  % site of the centerlined box.  (P. A. MacKay, 12 November, 1986)
 %  %
 \def\croppageout#1{\hoffset=0pt % make sure this doesn't mess things up  \def\croppageout#1{\hoffset=0pt % make sure this doesn't mess things up
                  \shipout  {\escapechar=`\\\relax % makes sure backslash is used in output files.
                  \vbox to \outervsize{\hsize=\outerhsize                   \shipout
                    \vbox to \outervsize{\hsize=\outerhsize
                  \vbox{\line{\ewtop\hfill\ewtop}}                   \vbox{\line{\ewtop\hfill\ewtop}}
                  \nointerlineskip                   \nointerlineskip
                  \line{\vbox{\moveleft\cornerthick\nstop}                   \line{\vbox{\moveleft\cornerthick\nstop}
Line 121 Line 175
                        \vbox{\moveright\cornerthick\nstop}}                         \vbox{\moveright\cornerthick\nstop}}
                  \vskip \topandbottommargin                   \vskip \topandbottommargin
                  \centerline{\ifodd\pageno\hskip\bindingoffset\fi                   \centerline{\ifodd\pageno\hskip\bindingoffset\fi
                         \vbox{                          \vbox{
                         {\let\hsize=\pagewidth \makeheadline}                          {\let\hsize=\pagewidth \makeheadline}
                         \pagebody{#1}                          \pagebody{#1}
                         {\let\hsize=\pagewidth \makefootline}}                          {\let\hsize=\pagewidth \makefootline}}
                         \ifodd\pageno\else\hskip\bindingoffset\fi}                          \ifodd\pageno\else\hskip\bindingoffset\fi}
                  \vskip \topandbottommargin plus1fill minus1fill                   \vskip \topandbottommargin plus1fill minus1fill
                  \boxmaxdepth\cornerthick                   \boxmaxdepth\cornerthick
                  \line{\vbox{\moveleft\cornerthick\nsbot}                   \line{\vbox{\moveleft\cornerthick\nsbot}
                        \hfill                         \hfill
                        \vbox{\moveright\cornerthick\nsbot}}                         \vbox{\moveright\cornerthick\nsbot}}
                  \nointerlineskip                   \nointerlineskip
                  \vbox{\line{\ewbot\hfill\ewbot}}                   \vbox{\line{\ewbot\hfill\ewbot}}
         }          }}
   \advancepageno     \advancepageno
   \ifnum\outputpenalty>-20000 \else\dosupereject\fi}    \ifnum\outputpenalty>-20000 \else\dosupereject\fi}
 %  %
 % Do @cropmarks to get crop marks  % Do @cropmarks to get crop marks
 \def\cropmarks{\let\onepageout=\croppageout }  \def\cropmarks{\let\onepageout=\croppageout }
   
   \newinsert\margin \dimen\margin=\maxdimen
   
 \def\pagebody#1{\vbox to\pageheight{\boxmaxdepth=\maxdepth #1}}  \def\pagebody#1{\vbox to\pageheight{\boxmaxdepth=\maxdepth #1}}
 {\catcode`\@ =11  {\catcode`\@ =11
 \gdef\pagecontents#1{\ifvoid\topins\else\unvbox\topins\fi  \gdef\pagecontents#1{\ifvoid\topins\else\unvbox\topins\fi
   % marginal hacks, juha@viisa.uucp (Juha Takala)
   \ifvoid\margin\else % marginal info is present
     \rlap{\kern\hsize\vbox to\z@{\kern1pt\box\margin \vss}}\fi
 \dimen@=\dp#1 \unvbox#1  \dimen@=\dp#1 \unvbox#1
 \ifvoid\footins\else\vskip\skip\footins\footnoterule \unvbox\footins\fi  \ifvoid\footins\else\vskip\skip\footins\footnoterule \unvbox\footins\fi
 \ifr@ggedbottom \kern-\dimen@ \vfil \fi}  \ifr@ggedbottom \kern-\dimen@ \vfil \fi}
Line 160 Line 219
 \def\nsbot{\vbox  \def\nsbot{\vbox
   {\hrule height\cornerlong depth\cornerthick width\cornerthick}}    {\hrule height\cornerlong depth\cornerthick width\cornerthick}}
   
 % Parse an argument, then pass it to #1.  % Parse an argument, then pass it to #1.  The argument is the rest of
 % The argument can be delimited with [...] or with "..." or braces  % the input line (except we remove a trailing comment).  #1 should be a
 % or it can be a whole line.  % macro which expects an ordinary undelimited TeX argument.
 % #1 should be a macro which expects  %
 % an ordinary undelimited TeX argument.  \def\parsearg#1{%
     \let\next = #1%
 \def\parsearg #1{\let\next=#1\begingroup\obeylines\futurelet\temp\parseargx}    \begingroup
       \obeylines
       \futurelet\temp\parseargx
   }
   
   % If the next token is an obeyed space (from an @example environment or
   % the like), remove it and recurse.  Otherwise, we're done.
 \def\parseargx{%  \def\parseargx{%
 \ifx \obeyedspace\temp \aftergroup\parseargdiscardspace \else%    % \obeyedspace is defined far below, after the definition of \sepspaces.
 \aftergroup \parseargline %    \ifx\obeyedspace\temp
 \fi \endgroup}      \expandafter\parseargdiscardspace
     \else
       \expandafter\parseargline
     \fi
   }
   
   % Remove a single space (as the delimiter token to the macro call).
 {\obeyspaces %  {\obeyspaces %
 \gdef\parseargdiscardspace {\begingroup\obeylines\futurelet\temp\parseargx}}   \gdef\parseargdiscardspace {\futurelet\temp\parseargx}}
   
 \gdef\obeyedspace{\ }  
   
 \def\parseargline{\begingroup \obeylines \parsearglinex}  
 {\obeylines %  {\obeylines %
 \gdef\parsearglinex #1^^M{\endgroup \next {#1}}}    \gdef\parseargline#1^^M{%
       \endgroup % End of the group started in \parsearg.
       %
       % First remove any @c comment, then any @comment.
       % Result of each macro is put in \toks0.
       \argremovec #1\c\relax %
       \expandafter\argremovecomment \the\toks0 \comment\relax %
       %
       % Call the caller's macro, saved as \next in \parsearg.
       \expandafter\next\expandafter{\the\toks0}%
     }%
   }
   
   % Since all \c{,omment} does is throw away the argument, we can let TeX
   % do that for us.  The \relax here is matched by the \relax in the call
   % in \parseargline; it could be more or less anything, its purpose is
   % just to delimit the argument to the \c.
   \def\argremovec#1\c#2\relax{\toks0 = {#1}}
   \def\argremovecomment#1\comment#2\relax{\toks0 = {#1}}
   
   % \argremovec{,omment} might leave us with trailing spaces, though; e.g.,
   %    @end itemize  @c foo
   % will have two active spaces as part of the argument with the
   % `itemize'.  Here we remove all active spaces from #1, and assign the
   % result to \toks0.
   %
   % This loses if there are any *other* active characters besides spaces
   % in the argument -- _ ^ +, for example -- since they get expanded.
   % Fortunately, Texinfo does not define any such commands.  (If it ever
   % does, the catcode of the characters in questionwill have to be changed
   % here.)  But this means we cannot call \removeactivespaces as part of
   % \argremovec{,omment}, since @c uses \parsearg, and thus the argument
   % that \parsearg gets might well have any character at all in it.
   %
   \def\removeactivespaces#1{%
     \begingroup
       \ignoreactivespaces
       \edef\temp{#1}%
       \global\toks0 = \expandafter{\temp}%
     \endgroup
   }
   
   % Change the active space to expand to nothing.
   %
   \begingroup
     \obeyspaces
     \gdef\ignoreactivespaces{\obeyspaces\let =\empty}
   \endgroup
   
   
 \def\flushcr{\ifx\par\lisppar \def\next##1{}\else \let\next=\relax \fi \next}  \def\flushcr{\ifx\par\lisppar \def\next##1{}\else \let\next=\relax \fi \next}
   
Line 192 Line 306
 \endgroup\fi} % This is not perfect, but it should reduce lossage  \endgroup\fi} % This is not perfect, but it should reduce lossage
   
 % @begin foo  is the same as @foo, for now.  % @begin foo  is the same as @foo, for now.
 \newhelp\EMsimple{Type <Return> to continue}  \newhelp\EMsimple{Type <Return> to continue.}
   
 \outer\def\begin{\parsearg\beginxxx}  \outer\def\begin{\parsearg\beginxxx}
   
Line 201 Line 315
 {\errhelp=\EMsimple \errmessage{Undefined command @begin #1}}\else  {\errhelp=\EMsimple \errmessage{Undefined command @begin #1}}\else
 \csname #1\endcsname\fi}  \csname #1\endcsname\fi}
   
 %% @end foo executes the definition of \Efoo.  % @end foo executes the definition of \Efoo.
 %% foo can be delimited by doublequotes or brackets.  %
   
 \def\end{\parsearg\endxxx}  \def\end{\parsearg\endxxx}
   
 \def\endxxx #1{%  \def\endxxx #1{%
 \expandafter\ifx\csname E#1\endcsname\relax    \removeactivespaces{#1}%
 \expandafter\ifx\csname #1\endcsname\relax    \edef\endthing{\the\toks0}%
 \errmessage{Undefined command @end #1}\else    %
 \errorE{#1}\fi\fi    \expandafter\ifx\csname E\endthing\endcsname\relax
 \csname E#1\endcsname}      \expandafter\ifx\csname \endthing\endcsname\relax
 \def\errorE#1{        % There's no \foo, i.e., no ``environment'' foo.
 {\errhelp=\EMsimple \errmessage{@end #1 not within #1 environment}}}        \errhelp = \EMsimple
         \errmessage{Undefined command `@end \endthing'}%
       \else
         \unmatchedenderror\endthing
       \fi
     \else
       % Everything's ok; the right environment has been started.
       \csname E\endthing\endcsname
     \fi
   }
   
   % There is an environment #1, but it hasn't been started.  Give an error.
   %
   \def\unmatchedenderror#1{%
     \errhelp = \EMsimple
     \errmessage{This `@end #1' doesn't have a matching `@#1'}%
   }
   
 % Single-spacing is done by various environments.  % Define the control sequence \E#1 to give an unmatched @end error.
   %
   \def\defineunmatchedend#1{%
     \expandafter\def\csname E#1\endcsname{\unmatchedenderror{#1}}%
   }
   
 \newskip\singlespaceskip \singlespaceskip = \baselineskip  
   % Single-spacing is done by various environments (specifically, in
   % \nonfillstart and \quotations).
   \newskip\singlespaceskip \singlespaceskip = 12.5pt
 \def\singlespace{%  \def\singlespace{%
 {\advance \baselineskip by -\singlespaceskip    % Why was this kern here?  It messes up equalizing space above and below
 \kern \baselineskip}%    % environments.  --karl, 6may93
 \baselineskip=\singlespaceskip    %{\advance \baselineskip by -\singlespaceskip
     %\kern \baselineskip}%
     \setleading \singlespaceskip
 }  }
   
 %% Simple single-character @ commands  %% Simple single-character @ commands
Line 230 Line 367
 % Kludge this until the fonts are right (grr).  % Kludge this until the fonts are right (grr).
 \def\@{{\tt \char '100}}  \def\@{{\tt \char '100}}
   
 % Define @` and @' to be the same as ` and '  % This is turned off because it was never documented
 % but suppressing ligatures.  % and you can use @w{...} around a quote to suppress ligatures.
 \def\`{{`}}  %% Define @` and @' to be the same as ` and '
 \def\'{{'}}  %% but suppressing ligatures.
   %\def\`{{`}}
   %\def\'{{'}}
   
 % Used to generate quoted braces.  % Used to generate quoted braces.
   
 \def\mylbrace {{\tt \char '173}}  \def\mylbrace {{\tt \char '173}}
 \def\myrbrace {{\tt \char '175}}  \def\myrbrace {{\tt \char '175}}
 \let\{=\mylbrace  \let\{=\mylbrace
 \let\}=\myrbrace  \let\}=\myrbrace
   \begingroup
     % Definitions to produce actual \{ & \} command in an index.
     \catcode`\{ = 12 \catcode`\} = 12
     \catcode`\[ = 1 \catcode`\] = 2
     \catcode`\@ = 0 \catcode`\\ = 12
     @gdef@lbracecmd[\{]%
     @gdef@rbracecmd[\}]%
   @endgroup
   
   % Accents: @, @dotaccent @ringaccent @ubaraccent @udotaccent
   % Others are defined by plain TeX: @` @' @" @^ @~ @= @v @H.
   \let\, = \c
   \let\dotaccent = \.
   \def\ringaccent#1{{\accent23 #1}}
   \let\tieaccent = \t
   \let\ubaraccent = \b
   \let\udotaccent = \d
   
   % Other special characters: @questiondown @exclamdown
   % Plain TeX defines: @AA @AE @O @OE @L (and lowercase versions) @ss.
   \def\questiondown{?`}
   \def\exclamdown{!`}
   
   % Dotless i and dotless j, used for accents.
   \def\imacro{i}
   \def\jmacro{j}
   \def\dotless#1{%
     \def\temp{#1}%
     \ifx\temp\imacro \ptexi
     \else\ifx\temp\jmacro \j
     \else \errmessage{@dotless can be used only with i or j}%
     \fi\fi
   }
   
 % @: forces normal size whitespace following.  % @: forces normal size whitespace following.
 \def\:{\spacefactor=1000 }  \def\:{\spacefactor=1000 }
Line 251 Line 422
 % @. is an end-of-sentence period.  % @. is an end-of-sentence period.
 \def\.{.\spacefactor=3000 }  \def\.{.\spacefactor=3000 }
   
   % @enddots{} is an end-of-sentence ellipsis.
   \gdef\enddots{$\mathinner{\ldotp\ldotp\ldotp\ldotp}$\spacefactor=3000}
   
   % @! is an end-of-sentence bang.
   \gdef\!{!\spacefactor=3000 }
   
   % @? is an end-of-sentence query.
   \gdef\?{?\spacefactor=3000 }
   
 % @w prevents a word break.  Without the \leavevmode, @w at the  % @w prevents a word break.  Without the \leavevmode, @w at the
 % beginning of a paragraph, when TeX is still in vertical mode, would  % beginning of a paragraph, when TeX is still in vertical mode, would
 % produce a whole line of output instead of starting the paragraph.  % produce a whole line of output instead of starting the paragraph.
Line 263 Line 443
 % max (\topskip - \ht (first item), 0).  If that height is large,  % max (\topskip - \ht (first item), 0).  If that height is large,
 % therefore, no glue is inserted, and the space between the headline and  % therefore, no glue is inserted, and the space between the headline and
 % the text is small, which looks bad.  % the text is small, which looks bad.
 %   %
 \def\group{\begingroup  \def\group{\begingroup
   \ifnum\catcode13=\active \else    \ifnum\catcode13=\active \else
     \errhelp = \groupinvalidhelp      \errhelp = \groupinvalidhelp
     \errmessage{@group invalid in context where filling is enabled}%      \errmessage{@group invalid in context where filling is enabled}%
   \fi    \fi
   \def\Egroup{\egroup\endgroup}%    %
     % The \vtop we start below produces a box with normal height and large
     % depth; thus, TeX puts \baselineskip glue before it, and (when the
     % next line of text is done) \lineskip glue after it.  (See p.82 of
     % the TeXbook.)  Thus, space below is not quite equal to space
     % above.  But it's pretty close.
     \def\Egroup{%
       \egroup           % End the \vtop.
       \endgroup         % End the \group.
     }%
     %
   \vtop\bgroup    \vtop\bgroup
       % We have to put a strut on the last line in case the @group is in
       % the midst of an example, rather than completely enclosing it.
       % Otherwise, the interline space between the last line of the group
       % and the first line afterwards is too small.  But we can't put the
       % strut in \Egroup, since there it would be on a line by itself.
       % Hence this just inserts a strut at the beginning of each line.
       \everypar = {\strut}%
       %
       % Since we have a strut on every line, we don't need any of TeX's
       % normal interline spacing.
       \offinterlineskip
       %
       % OK, but now we have to do something about blank
       % lines in the input in @example-like environments, which normally
       % just turn into \lisppar, which will insert no space now that we've
       % turned off the interline space.  Simplest is to make them be an
       % empty paragraph.
       \ifx\par\lisppar
         \edef\par{\leavevmode \par}%
         %
         % Reset ^^M's definition to new definition of \par.
         \obeylines
       \fi
       %
       % Do @comment since we are called inside an environment such as
       % @example, where each end-of-line in the input causes an
       % end-of-line in the output.  We don't want the end-of-line after
       % the `@group' to put extra space in the output.  Since @group
       % should appear on a line by itself (according to the Texinfo
       % manual), we don't worry about eating any user text.
       \comment
 }  }
 %  %
 % TeX puts in an \escapechar (i.e., `@') at the beginning of the help  % TeX puts in an \escapechar (i.e., `@') at the beginning of the help
 % message, so this ends up printing `@group can only ...'.  % message, so this ends up printing `@group can only ...'.
 %   %
 \newhelp\groupinvalidhelp{%  \newhelp\groupinvalidhelp{%
 group can only be used in environments such as @example,^^J%  group can only be used in environments such as @example,^^J%
 where each line of input produces a line of output.}  where each line of input produces a line of output.}
Line 306  where each line of input produces a line Line 527  where each line of input produces a line
   \allowbreak    \allowbreak
   \nointerlineskip    \nointerlineskip
   \vtop to #1\mil{\vfil}%    \vtop to #1\mil{\vfil}%
   %     %
   % TeX does not even consider page breaks if a penalty added to the    % TeX does not even consider page breaks if a penalty added to the
   % main vertical list is 10000 or more.  But in order to see if the    % main vertical list is 10000 or more.  But in order to see if the
   % empty box we just added fits on the page, we must make it consider    % empty box we just added fits on the page, we must make it consider
   % page breaks.  On the other hand, we don't want to actually break the    % page breaks.  On the other hand, we don't want to actually break the
   % page after the empty box.  So we use a penalty of 9999.    % page after the empty box.  So we use a penalty of 9999.
   %     %
   % There is an extremely small chance that TeX will actually break the    % There is an extremely small chance that TeX will actually break the
   % page at this \penalty, if there are no other feasible breakpoints in    % page at this \penalty, if there are no other feasible breakpoints in
   % sight.  (If the user is using lots of big @group commands, which    % sight.  (If the user is using lots of big @group commands, which
Line 357  where each line of input produces a line Line 578  where each line of input produces a line
 \def\nofillexdentyyy #1{{\advance \leftskip by -\exdentamount  \def\nofillexdentyyy #1{{\advance \leftskip by -\exdentamount
 \leftline{\hskip\leftskip{\rm#1}}}}  \leftline{\hskip\leftskip{\rm#1}}}}
   
   % @inmargin{TEXT} puts TEXT in the margin next to the current paragraph.
   
   \def\inmargin#1{%
   \strut\vadjust{\nobreak\kern-\strutdepth
     \vtop to \strutdepth{\baselineskip\strutdepth\vss
     \llap{\rightskip=\inmarginspacing \vbox{\noindent #1}}\null}}}
   \newskip\inmarginspacing \inmarginspacing=1cm
   \def\strutdepth{\dp\strutbox}
   
 %\hbox{{\rm#1}}\hfil\break}}  %\hbox{{\rm#1}}\hfil\break}}
   
 % @include file    insert text of that file as input.  % @include file    insert text of that file as input.
   % Allow normal characters that  we make active in the argument (a file name).
 \def\include{\parsearg\includezzz}  \def\include{\begingroup
 \def\includezzz #1{{\def\thisfile{#1}\input #1    \catcode`\\=12
 }}    \catcode`~=12
     \catcode`^=12
     \catcode`_=12
     \catcode`|=12
     \catcode`<=12
     \catcode`>=12
     \catcode`+=12
     \parsearg\includezzz}
   % Restore active chars for included file.
   \def\includezzz#1{\endgroup\begingroup
     % Read the included file in a group so nested @include's work.
     \def\thisfile{#1}%
     \input\thisfile
   \endgroup}
   
 \def\thisfile{}  \def\thisfile{}
   
Line 377  where each line of input produces a line Line 620  where each line of input produces a line
 % @sp n   outputs n lines of vertical space  % @sp n   outputs n lines of vertical space
   
 \def\sp{\parsearg\spxxx}  \def\sp{\parsearg\spxxx}
 \def\spxxx #1{\par \vskip #1\baselineskip}  \def\spxxx #1{\vskip #1\baselineskip}
   
 % @comment ...line which is ignored...  % @comment ...line which is ignored...
 % @c is the same as @comment  % @c is the same as @comment
Line 390  where each line of input produces a line Line 633  where each line of input produces a line
   
 \let\c=\comment  \let\c=\comment
   
   % @paragraphindent  is defined for the Info formatting commands only.
   \let\paragraphindent=\comment
   
 % Prevent errors for section commands.  % Prevent errors for section commands.
 % Used in @ignore and in failing conditionals.  % Used in @ignore and in failing conditionals.
 \def\ignoresections{%  \def\ignoresections{%
Line 419  where each line of input produces a line Line 665  where each line of input produces a line
 \let\titlepage=\relax  \let\titlepage=\relax
 }  }
   
 \def\ignore{\begingroup\ignoresections  % Used in nested conditionals, where we have to parse the Texinfo source
 % Make sure that spaces turn into tokens that match what \ignorexxx wants.  % and so want to turn off most commands, in case they are used
 \catcode32=10  % incorrectly.
 \ignorexxx}  %
 \long\def\ignorexxx #1\end ignore{\endgroup\ignorespaces}  \def\ignoremorecommands{%
     \let\defcodeindex = \relax
 \def\direntry{\begingroup\direntryxxx}    \let\defcv = \relax
 \long\def\direntryxxx #1\end direntry{\endgroup\ignorespaces}    \let\deffn = \relax
     \let\deffnx = \relax
 % Conditionals to test whether a flag is set.    \let\defindex = \relax
     \let\defivar = \relax
 \def\ifset{\begingroup\ignoresections\parsearg\ifsetxxx}    \let\defmac = \relax
     \let\defmethod = \relax
 \def\ifsetxxx #1{\endgroup    \let\defop = \relax
 \expandafter\ifx\csname IF#1\endcsname\relax \let\temp=\ifsetfail    \let\defopt = \relax
 \else \let\temp=\relax \fi    \let\defspec = \relax
 \temp}    \let\deftp = \relax
 \def\Eifset{}    \let\deftypefn = \relax
 \def\ifsetfail{\begingroup\ignoresections\ifsetfailxxx}    \let\deftypefun = \relax
 \long\def\ifsetfailxxx #1\end ifset{\endgroup\ignorespaces}    \let\deftypevar = \relax
     \let\deftypevr = \relax
 \def\ifclear{\begingroup\ignoresections\parsearg\ifclearxxx}    \let\defun = \relax
     \let\defvar = \relax
 \def\ifclearxxx #1{\endgroup    \let\defvr = \relax
 \expandafter\ifx\csname IF#1\endcsname\relax \let\temp=\relax    \let\ref = \relax
 \else \let\temp=\ifclearfail \fi    \let\xref = \relax
 \temp}    \let\printindex = \relax
 \def\Eifclear{}    \let\pxref = \relax
 \def\ifclearfail{\begingroup\ignoresections\ifclearfailxxx}    \let\settitle = \relax
 \long\def\ifclearfailxxx #1\end ifclear{\endgroup\ignorespaces}    \let\setchapternewpage = \relax
     \let\setchapterstyle = \relax
 % @set foo     to set the flag named foo.    \let\everyheading = \relax
 % @clear foo   to clear the flag named foo.    \let\evenheading = \relax
 \def\set{\parsearg\setxxx}    \let\oddheading = \relax
 \def\setxxx #1{    \let\everyfooting = \relax
 \expandafter\let\csname IF#1\endcsname=\set}    \let\evenfooting = \relax
     \let\oddfooting = \relax
     \let\headings = \relax
     \let\include = \relax
     \let\lowersections = \relax
     \let\down = \relax
     \let\raisesections = \relax
     \let\up = \relax
     \let\set = \relax
     \let\clear = \relax
     \let\item = \relax
   }
   
   % Ignore @ignore ... @end ignore.
   %
   \def\ignore{\doignore{ignore}}
   
   % Also ignore @ifinfo, @ifhtml, @html, @menu, and @direntry text.
   %
   \def\ifinfo{\doignore{ifinfo}}
   \def\ifhtml{\doignore{ifhtml}}
   \def\html{\doignore{html}}
   \def\menu{\doignore{menu}}
   \def\direntry{\doignore{direntry}}
   
   % Also ignore @macro ... @end macro.  The user must run texi2dvi,
   % which runs makeinfo to do macro expansion.  Ignore @unmacro, too.
   \def\macro{\doignore{macro}}
   \let\unmacro = \comment
   
   
   % @dircategory CATEGORY  -- specify a category of the dir file
   % which this file should belong to.  Ignore this in TeX.
   \let\dircategory = \comment
   
   % Ignore text until a line `@end #1'.
   %
   \def\doignore#1{\begingroup
     % Don't complain about control sequences we have declared \outer.
     \ignoresections
     %
     % Define a command to swallow text until we reach `@end #1'.
     \long\def\doignoretext##1\end #1{\enddoignore}%
     %
     % Make sure that spaces turn into tokens that match what \doignoretext wants.
     \catcode32 = 10
     %
     % And now expand that command.
     \doignoretext
   }
   
   % What we do to finish off ignored text.
   %
   \def\enddoignore{\endgroup\ignorespaces}%
   
   \newif\ifwarnedobs\warnedobsfalse
   \def\obstexwarn{%
     \ifwarnedobs\relax\else
     % We need to warn folks that they may have trouble with TeX 3.0.
     % This uses \immediate\write16 rather than \message to get newlines.
       \immediate\write16{}
       \immediate\write16{***WARNING*** for users of Unix TeX 3.0!}
       \immediate\write16{This manual trips a bug in TeX version 3.0 (tex hangs).}
       \immediate\write16{If you are running another version of TeX, relax.}
       \immediate\write16{If you are running Unix TeX 3.0, kill this TeX process.}
       \immediate\write16{  Then upgrade your TeX installation if you can.}
       \immediate\write16{  (See ftp://ftp.gnu.ai.mit.edu/pub/gnu/TeX.README.)}
       \immediate\write16{If you are stuck with version 3.0, run the}
       \immediate\write16{  script ``tex3patch'' from the Texinfo distribution}
       \immediate\write16{  to use a workaround.}
       \immediate\write16{}
       \global\warnedobstrue
       \fi
   }
   
   % **In TeX 3.0, setting text in \nullfont hangs tex.  For a
   % workaround (which requires the file ``dummy.tfm'' to be installed),
   % uncomment the following line:
   %%%%%\font\nullfont=dummy\let\obstexwarn=\relax
   
   % Ignore text, except that we keep track of conditional commands for
   % purposes of nesting, up to an `@end #1' command.
   %
   \def\nestedignore#1{%
     \obstexwarn
     % We must actually expand the ignored text to look for the @end
     % command, so that nested ignore constructs work.  Thus, we put the
     % text into a \vbox and then do nothing with the result.  To minimize
     % the change of memory overflow, we follow the approach outlined on
     % page 401 of the TeXbook: make the current font be a dummy font.
     %
     \setbox0 = \vbox\bgroup
       % Don't complain about control sequences we have declared \outer.
       \ignoresections
       %
       % Define `@end #1' to end the box, which will in turn undefine the
       % @end command again.
       \expandafter\def\csname E#1\endcsname{\egroup\ignorespaces}%
       %
       % We are going to be parsing Texinfo commands.  Most cause no
       % trouble when they are used incorrectly, but some commands do
       % complicated argument parsing or otherwise get confused, so we
       % undefine them.
       %
       % We can't do anything about stray @-signs, unfortunately;
       % they'll produce `undefined control sequence' errors.
       \ignoremorecommands
       %
       % Set the current font to be \nullfont, a TeX primitive, and define
       % all the font commands to also use \nullfont.  We don't use
       % dummy.tfm, as suggested in the TeXbook, because not all sites
       % might have that installed.  Therefore, math mode will still
       % produce output, but that should be an extremely small amount of
       % stuff compared to the main input.
       %
       \nullfont
       \let\tenrm = \nullfont  \let\tenit = \nullfont  \let\tensl = \nullfont
       \let\tenbf = \nullfont  \let\tentt = \nullfont  \let\smallcaps = \nullfont
       \let\tensf = \nullfont
       % Similarly for index fonts (mostly for their use in
       % smallexample)
       \let\indrm = \nullfont  \let\indit = \nullfont  \let\indsl = \nullfont
       \let\indbf = \nullfont  \let\indtt = \nullfont  \let\indsc = \nullfont
       \let\indsf = \nullfont
       %
       % Don't complain when characters are missing from the fonts.
       \tracinglostchars = 0
       %
       % Don't bother to do space factor calculations.
       \frenchspacing
       %
       % Don't report underfull hboxes.
       \hbadness = 10000
       %
       % Do minimal line-breaking.
       \pretolerance = 10000
       %
       % Do not execute instructions in @tex
       \def\tex{\doignore{tex}}
   }
   
   % @set VAR sets the variable VAR to an empty value.
   % @set VAR REST-OF-LINE sets VAR to the value REST-OF-LINE.
   %
   % Since we want to separate VAR from REST-OF-LINE (which might be
   % empty), we can't just use \parsearg; we have to insert a space of our
   % own to delimit the rest of the line, and then take it out again if we
   % didn't need it.  Make sure the catcode of space is correct to avoid
   % losing inside @example, for instance.
   %
   \def\set{\begingroup\catcode` =10 \parsearg\setxxx}
   \def\setxxx#1{\setyyy#1 \endsetyyy}
   \def\setyyy#1 #2\endsetyyy{%
     \def\temp{#2}%
     \ifx\temp\empty \global\expandafter\let\csname SET#1\endcsname = \empty
     \else \setzzz{#1}#2\endsetzzz % Remove the trailing space \setxxx inserted.
     \fi
     \endgroup
   }
   % Can't use \xdef to pre-expand #2 and save some time, since \temp or
   % \next or other control sequences that we've defined might get us into
   % an infinite loop. Consider `@set foo @cite{bar}'.
   \def\setzzz#1#2 \endsetzzz{\expandafter\gdef\csname SET#1\endcsname{#2}}
   
   % @clear VAR clears (i.e., unsets) the variable VAR.
   %
 \def\clear{\parsearg\clearxxx}  \def\clear{\parsearg\clearxxx}
 \def\clearxxx #1{  \def\clearxxx#1{\global\expandafter\let\csname SET#1\endcsname=\relax}
 \expandafter\let\csname IF#1\endcsname=\relax}  
   % @value{foo} gets the text saved in variable foo.
   %
   \def\value#1{\expandafter
                   \ifx\csname SET#1\endcsname\relax
                           {\{No value for ``#1''\}}
                   \else \csname SET#1\endcsname \fi}
   
   % @ifset VAR ... @end ifset reads the `...' iff VAR has been defined
   % with @set.
   %
   \def\ifset{\parsearg\ifsetxxx}
   \def\ifsetxxx #1{%
     \expandafter\ifx\csname SET#1\endcsname\relax
       \expandafter\ifsetfail
     \else
       \expandafter\ifsetsucceed
     \fi
   }
   \def\ifsetsucceed{\conditionalsucceed{ifset}}
   \def\ifsetfail{\nestedignore{ifset}}
   \defineunmatchedend{ifset}
   
   % @ifclear VAR ... @end ifclear reads the `...' iff VAR has never been
   % defined with @set, or has been undefined with @clear.
   %
   \def\ifclear{\parsearg\ifclearxxx}
   \def\ifclearxxx #1{%
     \expandafter\ifx\csname SET#1\endcsname\relax
       \expandafter\ifclearsucceed
     \else
       \expandafter\ifclearfail
     \fi
   }
   \def\ifclearsucceed{\conditionalsucceed{ifclear}}
   \def\ifclearfail{\nestedignore{ifclear}}
   \defineunmatchedend{ifclear}
   
   % @iftex always succeeds; we read the text following, through @end
   % iftex).  But `@end iftex' should be valid only after an @iftex.
   %
   \def\iftex{\conditionalsucceed{iftex}}
   \defineunmatchedend{iftex}
   
 % Some texinfo constructs that are trivial in tex  % We can't just want to start a group at @iftex (for example) and end it
   % at @end iftex, since then @set commands inside the conditional have no
   % effect (they'd get reverted at the end of the group).  So we must
   % define \Eiftex to redefine itself to be its previous value.  (We can't
   % just define it to fail again with an ``unmatched end'' error, since
   % the @ifset might be nested.)
   %
   \def\conditionalsucceed#1{%
     \edef\temp{%
       % Remember the current value of \E#1.
       \let\nece{prevE#1} = \nece{E#1}%
       %
       % At the `@end #1', redefine \E#1 to be its previous value.
       \def\nece{E#1}{\let\nece{E#1} = \nece{prevE#1}}%
     }%
     \temp
   }
   
 \def\iftex{}  % We need to expand lots of \csname's, but we don't want to expand the
 \def\Eiftex{}  % control sequences after we've constructed them.
 \def\ifinfo{\begingroup\ignoresections\ifinfoxxx}  %
 \long\def\ifinfoxxx #1\end ifinfo{\endgroup\ignorespaces}  \def\nece#1{\expandafter\noexpand\csname#1\endcsname}
   
 \long\def\menu #1\end menu{}  % @asis just yields its argument.  Used with @table, for example.
   %
 \def\asis#1{#1}  \def\asis#1{#1}
   
 % @math means output in math mode.  % @math means output in math mode.
Line 476  where each line of input produces a line Line 945  where each line of input produces a line
 % we read the toc file back, the $'s will be normal characters (as they  % we read the toc file back, the $'s will be normal characters (as they
 % should be, according to the definition of Texinfo).  So we must use a  % should be, according to the definition of Texinfo).  So we must use a
 % control sequence to switch into and out of math mode.  % control sequence to switch into and out of math mode.
 %   %
 % This isn't quite enough for @math to work properly in indices, but it  % This isn't quite enough for @math to work properly in indices, but it
 % seems unlikely it will ever be needed there.  % seems unlikely it will ever be needed there.
 %   %
 \let\implicitmath = $  \let\implicitmath = $
 \def\math#1{\implicitmath #1\implicitmath}  \def\math#1{\implicitmath #1\implicitmath}
   
   % @bullet and @minus need the same treatment as @math, just above.
   \def\bullet{\implicitmath\ptexbullet\implicitmath}
   \def\minus{\implicitmath-\implicitmath}
   
 \def\node{\ENVcheck\parsearg\nodezzz}  \def\node{\ENVcheck\parsearg\nodezzz}
 \def\nodezzz#1{\nodexxx [#1,]}  \def\nodezzz#1{\nodexxx [#1,]}
 \def\nodexxx[#1,#2]{\gdef\lastnode{#1}}  \def\nodexxx[#1,#2]{\gdef\lastnode{#1}}
   \let\nwnode=\node
 \let\lastnode=\relax  \let\lastnode=\relax
   
 \def\donoderef{\ifx\lastnode\relax\else  \def\donoderef{\ifx\lastnode\relax\else
 \expandafter\expandafter\expandafter\setref{\lastnode}\fi  \expandafter\expandafter\expandafter\setref{\lastnode}\fi
 \let\lastnode=\relax}  \global\let\lastnode=\relax}
   
 \def\unnumbnoderef{\ifx\lastnode\relax\else  \def\unnumbnoderef{\ifx\lastnode\relax\else
 \expandafter\expandafter\expandafter\unnumbsetref{\lastnode}\fi  \expandafter\expandafter\expandafter\unnumbsetref{\lastnode}\fi
 \let\lastnode=\relax}  \global\let\lastnode=\relax}
   
 \def\appendixnoderef{\ifx\lastnode\relax\else  \def\appendixnoderef{\ifx\lastnode\relax\else
 \expandafter\expandafter\expandafter\appendixsetref{\lastnode}\fi  \expandafter\expandafter\expandafter\appendixsetref{\lastnode}\fi
 \let\lastnode=\relax}  \global\let\lastnode=\relax}
   
   % @refill is a no-op.
 \let\refill=\relax  \let\refill=\relax
     
 % @setfilename is done at the beginning of every texinfo file.  % @setfilename is done at the beginning of every texinfo file.
 % So open here the files we need to have open while reading the input.  % So open here the files we need to have open while reading the input.
 % This makes it possible to make a .fmt file for texinfo.  % This makes it possible to make a .fmt file for texinfo.
Line 514  where each line of input produces a line Line 989  where each line of input produces a line
    \comment % Ignore the actual filename.     \comment % Ignore the actual filename.
 }  }
   
   % @bye.
 \outer\def\bye{\pagealignmacro\tracingstats=1\ptexend}  \outer\def\bye{\pagealignmacro\tracingstats=1\ptexend}
   
 \def\inforef #1{\inforefzzz #1,,,,**}  % \def\macro#1{\begingroup\ignoresections\catcode`\#=6\def\macrotemp{#1}\parsearg\macroxxx}
 \def\inforefzzz #1,#2,#3,#4**{See Info file \file{\losespace#3{}},  % \def\macroxxx#1#2 \end macro{%
   node \samp{\losespace#1{}}}  % \expandafter\gdef\macrotemp#1{#2}%
 \def\losespace #1{#1}  % \endgroup}
   
   %\def\linemacro#1{\begingroup\ignoresections\catcode`\#=6\def\macrotemp{#1}\parsearg\linemacroxxx}
   %\def\linemacroxxx#1#2 \end linemacro{%
   %\let\parsearg=\relax
   %\edef\macrotempx{\csname M\butfirst\expandafter\string\macrotemp\endcsname}%
   %\expandafter\xdef\macrotemp{\parsearg\macrotempx}%
   %\expandafter\gdef\macrotempx#1{#2}%
   %\endgroup}
   
   %\def\butfirst#1{}
   
   
 \message{fonts,}  \message{fonts,}
   
Line 531  where each line of input produces a line Line 1018  where each line of input produces a line
 \def\sf{\fam=\sffam \tensf}  \def\sf{\fam=\sffam \tensf}
 \let\li = \sf % Sometimes we call it \li, not \sf.  \let\li = \sf % Sometimes we call it \li, not \sf.
   
   % We don't need math for this one.
   \def\ttsl{\tenttsl}
   
 %% Try out Computer Modern fonts at \magstephalf  %% Try out Computer Modern fonts at \magstephalf
 \let\mainmagstep=\magstephalf  \let\mainmagstep=\magstephalf
   
   % Set the font macro #1 to the font named #2, adding on the
   % specified font prefix (normally `cm').
   % #3 is the font's design size, #4 is a scale factor
   \def\setfont#1#2#3#4{\font#1=\fontprefix#2#3 scaled #4}
   
   % Use cm as the default font prefix.
   % To specify the font prefix, you must define \fontprefix
   % before you read in texinfo.tex.
   \ifx\fontprefix\undefined
   \def\fontprefix{cm}
   \fi
   % Support font families that don't use the same naming scheme as CM.
   \def\rmshape{r}
   \def\rmbshape{bx}               %where the normal face is bold
   \def\bfshape{b}
   \def\bxshape{bx}
   \def\ttshape{tt}
   \def\ttbshape{tt}
   \def\ttslshape{sltt}
   \def\itshape{ti}
   \def\itbshape{bxti}
   \def\slshape{sl}
   \def\slbshape{bxsl}
   \def\sfshape{ss}
   \def\sfbshape{ss}
   \def\scshape{csc}
   \def\scbshape{csc}
   
 \ifx\bigger\relax  \ifx\bigger\relax
 \let\mainmagstep=\magstep1  \let\mainmagstep=\magstep1
 \font\textrm=cmr12  \setfont\textrm\rmshape{12}{1000}
 \font\texttt=cmtt12  \setfont\texttt\ttshape{12}{1000}
 \else  \else
 \font\textrm=cmr10 scaled \mainmagstep  \setfont\textrm\rmshape{10}{\mainmagstep}
 \font\texttt=cmtt10 scaled \mainmagstep  \setfont\texttt\ttshape{10}{\mainmagstep}
 \fi  \fi
 % Instead of cmb10, you many want to use cmbx10.  % Instead of cmb10, you many want to use cmbx10.
 % cmbx10 is a prettier font on its own, but cmb10  % cmbx10 is a prettier font on its own, but cmb10
 % looks better when embedded in a line with cmr10.  % looks better when embedded in a line with cmr10.
 \font\textbf=cmb10 scaled \mainmagstep   \setfont\textbf\bfshape{10}{\mainmagstep}
 \font\textit=cmti10 scaled \mainmagstep  \setfont\textit\itshape{10}{\mainmagstep}
 \font\textsl=cmsl10 scaled \mainmagstep  \setfont\textsl\slshape{10}{\mainmagstep}
 \font\textsf=cmss10 scaled \mainmagstep  \setfont\textsf\sfshape{10}{\mainmagstep}
 \font\textsc=cmcsc10 scaled \mainmagstep  \setfont\textsc\scshape{10}{\mainmagstep}
   \setfont\textttsl\ttslshape{10}{\mainmagstep}
 \font\texti=cmmi10 scaled \mainmagstep  \font\texti=cmmi10 scaled \mainmagstep
 \font\textsy=cmsy10 scaled \mainmagstep  \font\textsy=cmsy10 scaled \mainmagstep
   
 % A few fonts for @defun, etc.  % A few fonts for @defun, etc.
 \font\defbf=cmbx10 scaled \magstep1 %was 1314  \setfont\defbf\bxshape{10}{\magstep1} %was 1314
 \font\deftt=cmtt10 scaled \magstep1  \setfont\deftt\ttshape{10}{\magstep1}
 \def\df{\let\tentt=\deftt \let\tenbf = \defbf \bf}  \def\df{\let\tentt=\deftt \let\tenbf = \defbf \bf}
   
 % Fonts for indices and small examples.  % Fonts for indices and small examples (9pt).
 % We actually use the slanted font rather than the italic,   % We actually use the slanted font rather than the italic,
 % because texinfo normally uses the slanted fonts for that.  % because texinfo normally uses the slanted fonts for that.
 % Do not make many font distinctions in general in the index, since they  % Do not make many font distinctions in general in the index, since they
 % aren't very useful.  % aren't very useful.
 \font\ninett=cmtt9  \setfont\ninett\ttshape{9}{1000}
 \font\indrm=cmr9  \setfont\indrm\rmshape{9}{1000}
 \font\indit=cmsl9  \setfont\indit\slshape{9}{1000}
 \let\indsl=\indit  \let\indsl=\indit
 \let\indtt=\ninett  \let\indtt=\ninett
   \let\indttsl=\ninett
 \let\indsf=\indrm  \let\indsf=\indrm
 \let\indbf=\indrm  \let\indbf=\indrm
 \let\indsc=\indrm  \setfont\indsc\scshape{10}{900}
 \font\indi=cmmi9  \font\indi=cmmi9
 \font\indsy=cmsy9  \font\indsy=cmsy9
   
 % Fonts for headings  % Chapter (and unnumbered) fonts (17.28pt).
 \font\chaprm=cmbx12 scaled \magstep2  \setfont\chaprm\rmbshape{12}{\magstep2}
 \font\chapit=cmti12 scaled \magstep2  \setfont\chapit\itbshape{10}{\magstep3}
 \font\chapsl=cmsl12 scaled \magstep2  \setfont\chapsl\slbshape{10}{\magstep3}
 \font\chaptt=cmtt12 scaled \magstep2  \setfont\chaptt\ttbshape{12}{\magstep2}
 \font\chapsf=cmss12 scaled \magstep2  \setfont\chapttsl\ttslshape{10}{\magstep3}
   \setfont\chapsf\sfbshape{12}{\magstep2}
 \let\chapbf=\chaprm  \let\chapbf=\chaprm
 \font\chapsc=cmcsc10 scaled\magstep3  \setfont\chapsc\scbshape{10}{\magstep3}
 \font\chapi=cmmi12 scaled \magstep2  \font\chapi=cmmi12 scaled \magstep2
 \font\chapsy=cmsy10 scaled \magstep3  \font\chapsy=cmsy10 scaled \magstep3
   
 \font\secrm=cmbx12 scaled \magstep1  % Section fonts (14.4pt).
 \font\secit=cmti12 scaled \magstep1  \setfont\secrm\rmbshape{12}{\magstep1}
 \font\secsl=cmsl12 scaled \magstep1  \setfont\secit\itbshape{10}{\magstep2}
 \font\sectt=cmtt12 scaled \magstep1  \setfont\secsl\slbshape{10}{\magstep2}
 \font\secsf=cmss12 scaled \magstep1  \setfont\sectt\ttbshape{12}{\magstep1}
 \font\secbf=cmbx12 scaled \magstep1  \setfont\secttsl\ttslshape{10}{\magstep2}
 \font\secsc=cmcsc10 scaled\magstep2  \setfont\secsf\sfbshape{12}{\magstep1}
   \let\secbf\secrm
   \setfont\secsc\scbshape{10}{\magstep2}
 \font\seci=cmmi12 scaled \magstep1  \font\seci=cmmi12 scaled \magstep1
 \font\secsy=cmsy10 scaled \magstep2  \font\secsy=cmsy10 scaled \magstep2
   
 % \font\ssecrm=cmbx10 scaled \magstep1    % This size an font looked bad.  % \setfont\ssecrm\bxshape{10}{\magstep1}    % This size an font looked bad.
 % \font\ssecit=cmti10 scaled \magstep1    % The letters were too crowded.  % \setfont\ssecit\itshape{10}{\magstep1}    % The letters were too crowded.
 % \font\ssecsl=cmsl10 scaled \magstep1  % \setfont\ssecsl\slshape{10}{\magstep1}
 % \font\ssectt=cmtt10 scaled \magstep1  % \setfont\ssectt\ttshape{10}{\magstep1}
 % \font\ssecsf=cmss10 scaled \magstep1  % \setfont\ssecsf\sfshape{10}{\magstep1}
   
 %\font\ssecrm=cmb10 scaled 1315 % Note the use of cmb rather than cmbx.  %\setfont\ssecrm\bfshape{10}{1315}      % Note the use of cmb rather than cmbx.
 %\font\ssecit=cmti10 scaled 1315        % Also, the size is a little larger than  %\setfont\ssecit\itshape{10}{1315}      % Also, the size is a little larger than
 %\font\ssecsl=cmsl10 scaled 1315        % being scaled magstep1.  %\setfont\ssecsl\slshape{10}{1315}      % being scaled magstep1.
 %\font\ssectt=cmtt10 scaled 1315  %\setfont\ssectt\ttshape{10}{1315}
 %\font\ssecsf=cmss10 scaled 1315  %\setfont\ssecsf\sfshape{10}{1315}
   
 %\let\ssecbf=\ssecrm  %\let\ssecbf=\ssecrm
   
 \font\ssecrm=cmbx12 scaled \magstephalf  % Subsection fonts (13.15pt).
 \font\ssecit=cmti12 scaled \magstephalf  \setfont\ssecrm\rmbshape{12}{\magstephalf}
 \font\ssecsl=cmsl12 scaled \magstephalf  \setfont\ssecit\itbshape{10}{1315}
 \font\ssectt=cmtt12 scaled \magstephalf  \setfont\ssecsl\slbshape{10}{1315}
 \font\ssecsf=cmss12 scaled \magstephalf  \setfont\ssectt\ttbshape{12}{\magstephalf}
 \font\ssecbf=cmbx12 scaled \magstephalf  \setfont\ssecttsl\ttslshape{10}{\magstep1}
 \font\ssecsc=cmcsc10 scaled \magstep1   \setfont\ssecsf\sfbshape{12}{\magstephalf}
   \let\ssecbf\ssecrm
   \setfont\ssecsc\scbshape{10}{\magstep1}
 \font\sseci=cmmi12 scaled \magstephalf  \font\sseci=cmmi12 scaled \magstephalf
 \font\ssecsy=cmsy10 scaled \magstep1  \font\ssecsy=cmsy10 scaled \magstep1
 % The smallcaps and symbol fonts should actually be scaled \magstep1.5,  % The smallcaps and symbol fonts should actually be scaled \magstep1.5,
 % but that is not a standard magnification.  % but that is not a standard magnification.
   
 % Fonts for title page:  % Fonts for title page:
 \font\titlerm = cmbx12 scaled \magstep3  \setfont\titlerm\rmbshape{12}{\magstep3}
 \let\authorrm = \secrm  \let\authorrm = \secrm
   
 % In order for the font changes to affect most math symbols and letters,  % In order for the font changes to affect most math symbols and letters,
Line 630  where each line of input produces a line Line 1155  where each line of input produces a line
 % texinfo doesn't allow for producing subscripts and superscripts, we  % texinfo doesn't allow for producing subscripts and superscripts, we
 % don't bother to reset \scriptfont and \scriptscriptfont (which would  % don't bother to reset \scriptfont and \scriptscriptfont (which would
 % also require loading a lot more fonts).  % also require loading a lot more fonts).
 %   %
 \def\resetmathfonts{%  \def\resetmathfonts{%
   \textfont0 = \tenrm \textfont1 = \teni \textfont2 = \tensy    \textfont0 = \tenrm \textfont1 = \teni \textfont2 = \tensy
   \textfont\itfam = \tenit \textfont\slfam = \tensl \textfont\bffam = \tenbf    \textfont\itfam = \tenit \textfont\slfam = \tensl \textfont\bffam = \tenbf
Line 641  where each line of input produces a line Line 1166  where each line of input produces a line
 % The font-changing commands redefine the meanings of \tenSTYLE, instead  % The font-changing commands redefine the meanings of \tenSTYLE, instead
 % of just \STYLE.  We do this so that font changes will continue to work  % of just \STYLE.  We do this so that font changes will continue to work
 % in math mode, where it is the current \fam that is relevant in most  % in math mode, where it is the current \fam that is relevant in most
 % cases, not the current.  Plain TeX does, for example,  % cases, not the current font.  Plain TeX does \def\bf{\fam=\bffam
 % \def\bf{\fam=\bffam \tenbf}  By redefining \tenbf, we obviate the need  % \tenbf}, for example.  By redefining \tenbf, we obviate the need to
 % to redefine \bf itself.    % redefine \bf itself.
 \def\textfonts{%  \def\textfonts{%
   \let\tenrm=\textrm \let\tenit=\textit \let\tensl=\textsl    \let\tenrm=\textrm \let\tenit=\textit \let\tensl=\textsl
   \let\tenbf=\textbf \let\tentt=\texttt \let\smallcaps=\textsc    \let\tenbf=\textbf \let\tentt=\texttt \let\smallcaps=\textsc
   \let\tensf=\textsf \let\teni=\texti \let\tensy=\textsy    \let\tensf=\textsf \let\teni=\texti \let\tensy=\textsy \let\tenttsl=\textttsl
   \resetmathfonts}    \resetmathfonts}
 \def\chapfonts{%  \def\chapfonts{%
   \let\tenrm=\chaprm \let\tenit=\chapit \let\tensl=\chapsl     \let\tenrm=\chaprm \let\tenit=\chapit \let\tensl=\chapsl
   \let\tenbf=\chapbf \let\tentt=\chaptt \let\smallcaps=\chapsc    \let\tenbf=\chapbf \let\tentt=\chaptt \let\smallcaps=\chapsc
   \let\tensf=\chapsf \let\teni=\chapi \let\tensy=\chapsy    \let\tensf=\chapsf \let\teni=\chapi \let\tensy=\chapsy \let\tenttsl=\chapttsl
   \resetmathfonts}    \resetmathfonts \setleading{19pt}}
 \def\secfonts{%  \def\secfonts{%
   \let\tenrm=\secrm \let\tenit=\secit \let\tensl=\secsl    \let\tenrm=\secrm \let\tenit=\secit \let\tensl=\secsl
   \let\tenbf=\secbf \let\tentt=\sectt \let\smallcaps=\secsc    \let\tenbf=\secbf \let\tentt=\sectt \let\smallcaps=\secsc
   \let\tensf=\secsf \let\teni=\seci \let\tensy=\secsy    \let\tensf=\secsf \let\teni=\seci \let\tensy=\secsy \let\tenttsl=\secttsl
   \resetmathfonts}    \resetmathfonts \setleading{16pt}}
 \def\subsecfonts{%  \def\subsecfonts{%
   \let\tenrm=\ssecrm \let\tenit=\ssecit \let\tensl=\ssecsl    \let\tenrm=\ssecrm \let\tenit=\ssecit \let\tensl=\ssecsl
   \let\tenbf=\ssecbf \let\tentt=\ssectt \let\smallcaps=\ssecsc    \let\tenbf=\ssecbf \let\tentt=\ssectt \let\smallcaps=\ssecsc
   \let\tensf=\ssecsf \let\teni=\sseci \let\tensy=\ssecsy    \let\tensf=\ssecsf \let\teni=\sseci \let\tensy=\ssecsy \let\tenttsl=\ssecttsl
   \resetmathfonts}    \resetmathfonts \setleading{15pt}}
   \let\subsubsecfonts = \subsecfonts % Maybe make sssec fonts scaled magstephalf?
 \def\indexfonts{%  \def\indexfonts{%
   \let\tenrm=\indrm \let\tenit=\indit \let\tensl=\indsl    \let\tenrm=\indrm \let\tenit=\indit \let\tensl=\indsl
   \let\tenbf=\indbf \let\tentt=\indtt \let\smallcaps=\indsc    \let\tenbf=\indbf \let\tentt=\indtt \let\smallcaps=\indsc
   \let\tensf=\indsf \let\teni=\indi \let\tensy=\indsy    \let\tensf=\indsf \let\teni=\indi \let\tensy=\indsy \let\tenttsl=\indttsl
   \resetmathfonts}    \resetmathfonts \setleading{12pt}}
   
 % Set up the default fonts, so we can use them for creating boxes.  % Set up the default fonts, so we can use them for creating boxes.
 %   %
 \textfonts  \textfonts
   
 % Count depth in font-changes, for error checks  % Count depth in font-changes, for error checks
 \newcount\fontdepth \fontdepth=0  \newcount\fontdepth \fontdepth=0
   
 % Fonts for short table of contents.  % Fonts for short table of contents.
 \font\shortcontrm=cmr12  \setfont\shortcontrm\rmshape{12}{1000}
 \font\shortcontbf=cmbx12  \setfont\shortcontbf\bxshape{12}{1000}
 \font\shortcontsl=cmsl12  \setfont\shortcontsl\slshape{12}{1000}
   
 %% Add scribe-like font environments, plus @l for inline lisp (usually sans  %% Add scribe-like font environments, plus @l for inline lisp (usually sans
 %% serif) and @ii for TeX italic  %% serif) and @ii for TeX italic
Line 699  where each line of input produces a line Line 1225  where each line of input produces a line
 \def\b#1{{\bf #1}}  \def\b#1{{\bf #1}}
 \let\strong=\b  \let\strong=\b
   
 \def\t#1{{\tt \exhyphenpenalty=10000\rawbackslash \frenchspacing #1}\null}  % We can't just use \exhyphenpenalty, because that only has effect at
 \let\ttfont = \t  % the end of a paragraph.  Restore normal hyphenation at the end of the
 %\def\samp #1{`{\tt \rawbackslash \frenchspacing #1}'\null}  % group within which \nohyphenation is presumably called.
   %
   \def\nohyphenation{\hyphenchar\font = -1  \aftergroup\restorehyphenation}
   \def\restorehyphenation{\hyphenchar\font = `- }
   
   \def\t#1{%
     {\tt \rawbackslash \frenchspacing #1}%
     \null
   }
   \let\ttfont=\t
 \def\samp #1{`\tclose{#1}'\null}  \def\samp #1{`\tclose{#1}'\null}
 \def\key #1{{\tt \exhyphenpenalty=10000\uppercase{#1}}\null}  \setfont\smallrm\rmshape{8}{1000}
   \font\smallsy=cmsy9
   \def\key#1{{\smallrm\textfont2=\smallsy \leavevmode\hbox{%
     \raise0.4pt\hbox{$\langle$}\kern-.08em\vtop{%
       \vbox{\hrule\kern-0.4pt
        \hbox{\raise0.4pt\hbox{\vphantom{$\langle$}}#1}}%
       \kern-0.4pt\hrule}%
     \kern-.06em\raise0.4pt\hbox{$\rangle$}}}}
   % The old definition, with no lozenge:
   %\def\key #1{{\ttsl \nohyphenation \uppercase{#1}}\null}
 \def\ctrl #1{{\tt \rawbackslash \hat}#1}  \def\ctrl #1{{\tt \rawbackslash \hat}#1}
   
 \let\file=\samp  \let\file=\samp
   \let\url=\samp % perhaps include a hypertex \special eventually
   \def\email#1{$\langle${\tt #1}$\rangle$}
   
 % @code is a modification of @t,  % @code is a modification of @t,
 % which makes spaces the same size as normal in the surrounding text.  % which makes spaces the same size as normal in the surrounding text.
 \newdimen\tclosesave  \def\tclose#1{%
 \newdimen\tcloserm    {%
 \def\tclose#1{{\rm \tcloserm=\fontdimen2\font \tt \tclosesave=\fontdimen2\font      % Change normal interword space to be same as for the current font.
 \fontdimen2\font=\tcloserm      \spaceskip = \fontdimen2\font
 % prevent breaking lines at hyphens.      %
 \exhyphenpenalty=10000      % Switch to typewriter.
 \def\ {{\fontdimen2\font=\tclosesave{} }}%      \tt
  \rawbackslash \frenchspacing #1\fontdimen2\font=\tclosesave}\null}      %
 \let\code=\tclose      % But `\ ' produces the large typewriter interword space.
       \def\ {{\spaceskip = 0pt{} }}%
       %
       % Turn off hyphenation.
       \nohyphenation
       %
       \rawbackslash
       \frenchspacing
       #1%
     }%
     \null
   }
   
   % We *must* turn on hyphenation at `-' and `_' in \code.
   % Otherwise, it is too hard to avoid overfull hboxes
   % in the Emacs manual, the Library manual, etc.
   
   % Unfortunately, TeX uses one parameter (\hyphenchar) to control
   % both hyphenation at - and hyphenation within words.
   % We must therefore turn them both off (\tclose does that)
   % and arrange explicitly to hyphenate at a dash.
   %  -- rms.
   {
   \catcode`\-=\active
   \catcode`\_=\active
   \global\def\code{\begingroup \catcode`\-=\active \let-\codedash \catcode`\_=\active \let_\codeunder \codex}
   % The following is used by \doprintindex to insure that long function names
   % wrap around.  It is necessary for - and _ to be active before the index is
   % read from the file, as \entry parses the arguments long before \code is
   % ever called.  -- mycroft
   \global\def\indexbreaks{\catcode`\-=\active \let-\realdash \catcode`\_=\active \let_\realunder}
   }
   
   \def\realdash{-}
   \def\realunder{_}
   \def\codedash{-\discretionary{}{}{}}
   \def\codeunder{\normalunderscore\discretionary{}{}{}}
   \def\codex #1{\tclose{#1}\endgroup}
   
 %\let\exp=\tclose  %Was temporary  %\let\exp=\tclose  %Was temporary
   
 % @kbd is like @code, except that if the argument is just one @key command,   % @kbd is like @code, except that if the argument is just one @key command,
 % then @kbd has no effect.  % then @kbd has no effect.
   %
 \def\xkey{\key}  \def\xkey{\key}
 \def\kbdfoo#1#2#3\par{\def\one{#1}\def\three{#3}\def\threex{??}%  \def\kbdfoo#1#2#3\par{\def\one{#1}\def\three{#3}\def\threex{??}%
 \ifx\one\xkey\ifx\threex\three \key{#2}%  \ifx\one\xkey\ifx\threex\three \key{#2}%
 \else\tclose{\look}\fi  \else{\tclose{\ttsl\look}}\fi
 \else\tclose{\look}\fi}  \else{\tclose{\ttsl\look}}\fi}
   
   % Check if we are currently using a typewriter font.  Since all the
   % Computer Modern typewriter fonts have zero interword stretch (and
   % shrink), and it is reasonable to expect all typewriter fonts to have
   % this property, we can check that font parameter.
   % 
   \def\ifmonospace{\ifdim\fontdimen3\font=0pt }
   
 % Typeset a dimension, e.g., `in' or `pt'.  The only reason for the  % Typeset a dimension, e.g., `in' or `pt'.  The only reason for the
 % argument is to make the input look right: @dmn{pt} instead of  % argument is to make the input look right: @dmn{pt} instead of
 % @dmn{}pt.  % @dmn{}pt.
 %   %
 \def\dmn#1{\thinspace #1}  \def\dmn#1{\thinspace #1}
   
 \def\kbd#1{\def\look{#1}\expandafter\kbdfoo\look??\par}  \def\kbd#1{\def\look{#1}\expandafter\kbdfoo\look??\par}
   
 \def\l#1{{\li #1}\null}         %   % @l was never documented to mean ``switch to the Lisp font'',
   % and it is not used as such in any manual I can find.  We need it for
   % Polish suppressed-l.  --karl, 22sep96.
   %\def\l#1{{\li #1}\null}
   
 \def\r#1{{\rm #1}}              % roman font  \def\r#1{{\rm #1}}              % roman font
 % Use of \lowercase was suggested.  % Use of \lowercase was suggested.
 \def\sc#1{{\smallcaps#1}}       % smallcaps font  \def\sc#1{{\smallcaps#1}}       % smallcaps font
 \def\ii#1{{\it #1}}             % italic font  \def\ii#1{{\it #1}}             % italic font
   
   % @pounds{} is a sterling sign.
   \def\pounds{{\it\$}}
   
   
 \message{page headings,}  \message{page headings,}
   
Line 753  where each line of input produces a line Line 1351  where each line of input produces a line
 % First the title page.  Must do @settitle before @titlepage.  % First the title page.  Must do @settitle before @titlepage.
 \def\titlefont#1{{\titlerm #1}}  \def\titlefont#1{{\titlerm #1}}
   
 \newtoks\realeverypar  
 \newif\ifseenauthor  \newif\ifseenauthor
 \newif\iffinishedtitlepage  \newif\iffinishedtitlepage
   
   \def\shorttitlepage{\parsearg\shorttitlepagezzz}
   \def\shorttitlepagezzz #1{\begingroup\hbox{}\vskip 1.5in \chaprm \centerline{#1}%
           \endgroup\page\hbox{}\page}
   
 \def\titlepage{\begingroup \parindent=0pt \textfonts  \def\titlepage{\begingroup \parindent=0pt \textfonts
    \let\subtitlerm=\tenrm     \let\subtitlerm=\tenrm
 % I deinstalled the following change because \cmr12 is undefined.  % I deinstalled the following change because \cmr12 is undefined.
Line 772  where each line of input produces a line Line 1373  where each line of input produces a line
    % Now you can print the title using @title.     % Now you can print the title using @title.
    \def\title{\parsearg\titlezzz}%     \def\title{\parsearg\titlezzz}%
    \def\titlezzz##1{\leftline{\titlefont{##1}}     \def\titlezzz##1{\leftline{\titlefont{##1}}
                     % print a rule at the page bottom also.                      % print a rule at the page bottom also.
                     \finishedtitlepagefalse                      \finishedtitlepagefalse
                     \vskip4pt \hrule height 4pt \vskip4pt}%                      \vskip4pt \hrule height 4pt width \hsize \vskip4pt}%
    % No rule at page bottom unless we print one at the top with @title.     % No rule at page bottom unless we print one at the top with @title.
    \finishedtitlepagetrue     \finishedtitlepagetrue
    %     %
Line 786  where each line of input produces a line Line 1387  where each line of input produces a line
    \def\author{\parsearg\authorzzz}%     \def\author{\parsearg\authorzzz}%
    \def\authorzzz##1{\ifseenauthor\else\vskip 0pt plus 1filll\seenauthortrue\fi     \def\authorzzz##1{\ifseenauthor\else\vskip 0pt plus 1filll\seenauthortrue\fi
       {\authorfont \leftline{##1}}}%        {\authorfont \leftline{##1}}}%
    %       %
    % Most title ``pages'' are actually two pages long, with space     % Most title ``pages'' are actually two pages long, with space
    % at the top of the second.  We don't want the ragged left on the second.     % at the top of the second.  We don't want the ragged left on the second.
    \let\oldpage = \page     \let\oldpage = \page
    \def\page{%     \def\page{%
       \iffinishedtitlepage\else        \iffinishedtitlepage\else
          \finishtitlepage           \finishtitlepage
       \fi        \fi
       \oldpage        \oldpage
       \let\page = \oldpage        \let\page = \oldpage
Line 814  where each line of input produces a line Line 1415  where each line of input produces a line
 }  }
   
 \def\finishtitlepage{%  \def\finishtitlepage{%
    \vskip4pt \hrule height 2pt     \vskip4pt \hrule height 2pt width \hsize
    \vskip\titlepagebottomglue     \vskip\titlepagebottomglue
    \finishedtitlepagetrue     \finishedtitlepagetrue
 }  }
Line 880  where each line of input produces a line Line 1481  where each line of input produces a line
 %  %
 }% unbind the catcode of @.  }% unbind the catcode of @.
   
 % @headings double      turns headings on for double-sided printing.  % @headings double      turns headings on for double-sided printing.
 % @headings single      turns headings on for single-sided printing.  % @headings single      turns headings on for single-sided printing.
 % @headings off         turns them off.  % @headings off         turns them off.
 % @headings on          same as @headings double, retained for compatibility.  % @headings on          same as @headings double, retained for compatibility.
 % @headings after       turns on double-sided headings after this page.  % @headings after       turns on double-sided headings after this page.
 % @headings doubleafter turns on double-sided headings after this page.  % @headings doubleafter turns on double-sided headings after this page.
 % @headings singleafter turns on single-sided headings after this page.  % @headings singleafter turns on single-sided headings after this page.
 % By default, they are off.  % By default, they are off at the start of a document,
   % and turned `on' after @end titlepage.
   
 \def\headings #1 {\csname HEADINGS#1\endcsname}  \def\headings #1 {\csname HEADINGS#1\endcsname}
   
Line 901  where each line of input produces a line Line 1503  where each line of input produces a line
 % title on inside top of left hand pages, and page numbers on outside top  % title on inside top of left hand pages, and page numbers on outside top
 % edge of all pages.  % edge of all pages.
 \def\HEADINGSdouble{  \def\HEADINGSdouble{
 %\pagealignmacro  
 \global\pageno=1  \global\pageno=1
 \global\evenfootline={\hfil}  \global\evenfootline={\hfil}
 \global\oddfootline={\hfil}  \global\oddfootline={\hfil}
 \global\evenheadline={\line{\folio\hfil\thistitle}}  \global\evenheadline={\line{\folio\hfil\thistitle}}
 \global\oddheadline={\line{\thischapter\hfil\folio}}  \global\oddheadline={\line{\thischapter\hfil\folio}}
   \global\let\contentsalignmacro = \chapoddpage
 }  }
   \let\contentsalignmacro = \chappager
   
 % For single-sided printing, chapter title goes across top left of page,  % For single-sided printing, chapter title goes across top left of page,
 % page number on top right.  % page number on top right.
 \def\HEADINGSsingle{  \def\HEADINGSsingle{
 %\pagealignmacro  
 \global\pageno=1  \global\pageno=1
 \global\evenfootline={\hfil}  \global\evenfootline={\hfil}
 \global\oddfootline={\hfil}  \global\oddfootline={\hfil}
 \global\evenheadline={\line{\thischapter\hfil\folio}}  \global\evenheadline={\line{\thischapter\hfil\folio}}
 \global\oddheadline={\line{\thischapter\hfil\folio}}  \global\oddheadline={\line{\thischapter\hfil\folio}}
   \global\let\contentsalignmacro = \chappager
 }  }
 \def\HEADINGSon{\HEADINGSdouble}  \def\HEADINGSon{\HEADINGSdouble}
   
Line 927  where each line of input produces a line Line 1531  where each line of input produces a line
 \global\oddfootline={\hfil}  \global\oddfootline={\hfil}
 \global\evenheadline={\line{\folio\hfil\thistitle}}  \global\evenheadline={\line{\folio\hfil\thistitle}}
 \global\oddheadline={\line{\thischapter\hfil\folio}}  \global\oddheadline={\line{\thischapter\hfil\folio}}
   \global\let\contentsalignmacro = \chapoddpage
 }  }
   
 \def\HEADINGSsingleafter{\let\HEADINGShook=\HEADINGSsinglex}  \def\HEADINGSsingleafter{\let\HEADINGShook=\HEADINGSsinglex}
Line 935  where each line of input produces a line Line 1540  where each line of input produces a line
 \global\oddfootline={\hfil}  \global\oddfootline={\hfil}
 \global\evenheadline={\line{\thischapter\hfil\folio}}  \global\evenheadline={\line{\thischapter\hfil\folio}}
 \global\oddheadline={\line{\thischapter\hfil\folio}}  \global\oddheadline={\line{\thischapter\hfil\folio}}
   \global\let\contentsalignmacro = \chappager
 }  }
   
 % Subroutines used in generating headings  % Subroutines used in generating headings
Line 958  July\or August\or September\or October\o Line 1564  July\or August\or September\or October\o
 \def\settitle{\parsearg\settitlezzz}  \def\settitle{\parsearg\settitlezzz}
 \def\settitlezzz #1{\gdef\thistitle{#1}}  \def\settitlezzz #1{\gdef\thistitle{#1}}
   
   
 \message{tables,}  \message{tables,}
   
 % @tabs -- simple alignment  % @tabs -- simple alignment
Line 988  July\or August\or September\or October\o Line 1595  July\or August\or September\or October\o
 % They also define \itemindex  % They also define \itemindex
 % to index the item name in whatever manner is desired (perhaps none).  % to index the item name in whatever manner is desired (perhaps none).
   
   \newif\ifitemxneedsnegativevskip
   
   \def\itemxpar{\par\ifitemxneedsnegativevskip\nobreak\vskip-\parskip\nobreak\fi}
   
 \def\internalBitem{\smallbreak \parsearg\itemzzz}  \def\internalBitem{\smallbreak \parsearg\itemzzz}
 \def\internalBitemx{\par \parsearg\itemzzz}  \def\internalBitemx{\itemxpar \parsearg\itemzzz}
   
 \def\internalBxitem "#1"{\def\xitemsubtopix{#1} \smallbreak \parsearg\xitemzzz}  \def\internalBxitem "#1"{\def\xitemsubtopix{#1} \smallbreak \parsearg\xitemzzz}
 \def\internalBxitemx "#1"{\def\xitemsubtopix{#1} \par \parsearg\xitemzzz}  \def\internalBxitemx "#1"{\def\xitemsubtopix{#1} \itemxpar \parsearg\xitemzzz}
   
 \def\internalBkitem{\smallbreak \parsearg\kitemzzz}  \def\internalBkitem{\smallbreak \parsearg\kitemzzz}
 \def\internalBkitemx{\par \parsearg\kitemzzz}  \def\internalBkitemx{\itemxpar \parsearg\kitemzzz}
   
 \def\kitemzzz #1{\dosubind {kw}{\code{#1}}{for {\bf \lastfunction}}%  \def\kitemzzz #1{\dosubind {kw}{\code{#1}}{for {\bf \lastfunction}}%
                  \itemzzz {#1}}                   \itemzzz {#1}}
Line 1011  July\or August\or September\or October\o Line 1622  July\or August\or September\or October\o
   \nobreak % This prevents a break before @itemx.    \nobreak % This prevents a break before @itemx.
   %    %
   % Be sure we are not still in the middle of a paragraph.    % Be sure we are not still in the middle of a paragraph.
   \parskip=0in    %{\parskip = 0in
   \par    %\par
     %}%
   %    %
   % If the item text does not fit in the space we have, put it on a line    % If the item text does not fit in the space we have, put it on a line
   % by itself, and do not allow a page break either before or after that    % by itself, and do not allow a page break either before or after that
Line 1020  July\or August\or September\or October\o Line 1632  July\or August\or September\or October\o
   % command is, e.g., @kindex, the whatsit would get put into the    % command is, e.g., @kindex, the whatsit would get put into the
   % horizontal list on a line by itself, resulting in extra blank space.    % horizontal list on a line by itself, resulting in extra blank space.
   \ifdim \wd0>\itemmax    \ifdim \wd0>\itemmax
     \setbox0=\hbox{\hskip \leftskip \hskip -\tableindent \unhbox0}\box0      %
       % Make this a paragraph so we get the \parskip glue and wrapping,
       % but leave it ragged-right.
       \begingroup
         \advance\leftskip by-\tableindent
         \advance\hsize by\tableindent
         \advance\rightskip by0pt plus1fil
         \leavevmode\unhbox0\par
       \endgroup
       %
       % We're going to be starting a paragraph, but we don't want the
       % \parskip glue -- logically it's part of the @item we just started.
       \nobreak \vskip-\parskip
       %
       % Stop a page break at the \parskip glue coming up.  Unfortunately
       % we can't prevent a possible page break at the following
       % \baselineskip glue.
     \nobreak      \nobreak
       \endgroup
       \itemxneedsnegativevskipfalse
   \else    \else
     % The item text fits into the space.  Start a paragraph, so that the      % The item text fits into the space.  Start a paragraph, so that the
     % following text (if any) will end up on the same line.  Since that      % following text (if any) will end up on the same line.  Since that
     % text will be indented by \tableindent, we make the item text be in      % text will be indented by \tableindent, we make the item text be in
     % a zero-width box.      % a zero-width box.
     \noindent      \noindent
     \rlap{\hskip -\tableindent\box0}%      \rlap{\hskip -\tableindent\box0}\ignorespaces%
       \endgroup%
       \itemxneedsnegativevskiptrue%
   \fi    \fi
   \endgroup  
 }  }
   
 \def\item{\errmessage{@item while not in a table}}  \def\item{\errmessage{@item while not in a table}}
Line 1052  July\or August\or September\or October\o Line 1683  July\or August\or September\or October\o
 {\obeylines\obeyspaces%  {\obeylines\obeyspaces%
 \gdef\ftablex #1^^M{%  \gdef\ftablex #1^^M{%
 \tabley\fnitemindex#1        \endtabley  \tabley\fnitemindex#1        \endtabley
 \def\Eftable{\endgraf\endgroup\afterenvbreak}%  \def\Eftable{\endgraf\afterenvbreak\endgroup}%
 \let\Etable=\relax}}  \let\Etable=\relax}}
   
 \def\vtable{\begingroup\inENV\obeylines\obeyspaces\vtablex}  \def\vtable{\begingroup\inENV\obeylines\obeyspaces\vtablex}
 {\obeylines\obeyspaces%  {\obeylines\obeyspaces%
 \gdef\vtablex #1^^M{%  \gdef\vtablex #1^^M{%
 \tabley\vritemindex#1        \endtabley  \tabley\vritemindex#1        \endtabley
 \def\Evtable{\endgraf\endgroup\afterenvbreak}%  \def\Evtable{\endgraf\afterenvbreak\endgroup}%
 \let\Etable=\relax}}  \let\Etable=\relax}}
   
 \def\dontindex #1{}  \def\dontindex #1{}
Line 1073  July\or August\or September\or October\o Line 1704  July\or August\or September\or October\o
 \def\tablez #1#2#3#4#5#6{%  \def\tablez #1#2#3#4#5#6{%
 \aboveenvbreak %  \aboveenvbreak %
 \begingroup %  \begingroup %
 \def\Edescription{\Etable}% Neccessary kludge.  \def\Edescription{\Etable}% Necessary kludge.
 \let\itemindex=#1%  \let\itemindex=#1%
 \ifnum 0#3>0 \advance \leftskip by #3\mil \fi %  \ifnum 0#3>0 \advance \leftskip by #3\mil \fi %
 \ifnum 0#4>0 \tableindent=#4\mil \fi %  \ifnum 0#4>0 \tableindent=#4\mil \fi %
Line 1086  July\or August\or September\or October\o Line 1717  July\or August\or September\or October\o
 \parindent = 0pt  \parindent = 0pt
 \parskip = \smallskipamount  \parskip = \smallskipamount
 \ifdim \parskip=0pt \parskip=2pt \fi%  \ifdim \parskip=0pt \parskip=2pt \fi%
 \def\Etable{\endgraf\endgroup\afterenvbreak}%  \def\Etable{\endgraf\afterenvbreak\endgroup}%
 \let\item = \internalBitem %  \let\item = \internalBitem %
 \let\itemx = \internalBitemx %  \let\itemx = \internalBitemx %
 \let\kitem = \internalBkitem %  \let\kitem = \internalBkitem %
Line 1115  July\or August\or September\or October\o Line 1746  July\or August\or September\or October\o
 \parindent = 0pt %  \parindent = 0pt %
 \parskip = \smallskipamount %  \parskip = \smallskipamount %
 \ifdim \parskip=0pt \parskip=2pt \fi%  \ifdim \parskip=0pt \parskip=2pt \fi%
 \def#2{\endgraf\endgroup\afterenvbreak}%  \def#2{\endgraf\afterenvbreak\endgroup}%
 \def\itemcontents{#1}%  \def\itemcontents{#1}%
 \let\item=\itemizeitem}  \let\item=\itemizeitem}
   
 \def\bullet{$\ptexbullet$}  
 \def\minus{$-$}  
   
 % Set sfcode to normal for the chars that usually have another value.  % Set sfcode to normal for the chars that usually have another value.
 % These are `.?!:;,'  % These are `.?!:;,'
 \def\frenchspacing{\sfcode46=1000 \sfcode63=1000 \sfcode33=1000  \def\frenchspacing{\sfcode46=1000 \sfcode63=1000 \sfcode33=1000
Line 1129  July\or August\or September\or October\o Line 1757  July\or August\or September\or October\o
   
 % \splitoff TOKENS\endmark defines \first to be the first token in  % \splitoff TOKENS\endmark defines \first to be the first token in
 % TOKENS, and \rest to be the remainder.  % TOKENS, and \rest to be the remainder.
 %   %
 \def\splitoff#1#2\endmark{\def\first{#1}\def\rest{#2}}%  \def\splitoff#1#2\endmark{\def\first{#1}\def\rest{#2}}%
   
 % Allow an optional argument of an uppercase letter, lowercase letter,  % Allow an optional argument of an uppercase letter, lowercase letter,
 % or number, to specify the first label in the enumerated list.  No  % or number, to specify the first label in the enumerated list.  No
 % argument is the same as `1'.  % argument is the same as `1'.
 %   %
 \def\enumerate{\parsearg\enumeratezzz}  \def\enumerate{\parsearg\enumeratezzz}
 \def\enumeratezzz #1{\enumeratey #1  \endenumeratey}  \def\enumeratezzz #1{\enumeratey #1  \endenumeratey}
 \def\enumeratey #1 #2\endenumeratey{%  \def\enumeratey #1 #2\endenumeratey{%
Line 1157  July\or August\or September\or October\o Line 1785  July\or August\or September\or October\o
     % An ``uppercase letter'' is one whose \lccode is both nonzero, and      % An ``uppercase letter'' is one whose \lccode is both nonzero, and
     %   not equal to itself.      %   not equal to itself.
     % Otherwise, we assume it's a number.      % Otherwise, we assume it's a number.
     %       %
     % We need the \relax at the end of the \ifnum lines to stop TeX from      % We need the \relax at the end of the \ifnum lines to stop TeX from
     % continuing to look for a <number>.      % continuing to look for a <number>.
     %       %
     \ifnum\lccode\expandafter`\thearg=0\relax       \ifnum\lccode\expandafter`\thearg=0\relax
       \numericenumerate % a number (we hope)        \numericenumerate % a number (we hope)
     \else      \else
       % It's a letter.        % It's a letter.
Line 1179  July\or August\or September\or October\o Line 1807  July\or August\or September\or October\o
   
 % An @enumerate whose labels are integers.  The starting integer is  % An @enumerate whose labels are integers.  The starting integer is
 % given in \thearg.  % given in \thearg.
 %   %
 \def\numericenumerate{%  \def\numericenumerate{%
   \itemno = \thearg    \itemno = \thearg
   \startenumeration{\the\itemno}%    \startenumeration{\the\itemno}%
Line 1214  July\or August\or September\or October\o Line 1842  July\or August\or September\or October\o
 % Call itemizey, adding a period to the first argument and supplying the  % Call itemizey, adding a period to the first argument and supplying the
 % common last two arguments.  Also subtract one from the initial value in  % common last two arguments.  Also subtract one from the initial value in
 % \itemno, since @item increments \itemno.  % \itemno, since @item increments \itemno.
 %   %
 \def\startenumeration#1{%  \def\startenumeration#1{%
   \advance\itemno by -1    \advance\itemno by -1
   \itemizey{#1.}\Eenumerate\flushcr    \itemizey{#1.}\Eenumerate\flushcr
Line 1222  July\or August\or September\or October\o Line 1850  July\or August\or September\or October\o
   
 % @alphaenumerate and @capsenumerate are abbreviations for giving an arg  % @alphaenumerate and @capsenumerate are abbreviations for giving an arg
 % to @enumerate.  % to @enumerate.
 %   %
 \def\alphaenumerate{\enumerate{a}}  \def\alphaenumerate{\enumerate{a}}
 \def\capsenumerate{\enumerate{A}}  \def\capsenumerate{\enumerate{A}}
 \def\Ealphaenumerate{\Eenumerate}  \def\Ealphaenumerate{\Eenumerate}
Line 1239  July\or August\or September\or October\o Line 1867  July\or August\or September\or October\o
 \vadjust{\penalty 1200}}%  \vadjust{\penalty 1200}}%
 \flushcr}  \flushcr}
   
   % @multitable macros
   % Amy Hendrickson, 8/18/94, 3/6/96
   %
   % @multitable ... @end multitable will make as many columns as desired.
   % Contents of each column will wrap at width given in preamble.  Width
   % can be specified either with sample text given in a template line,
   % or in percent of \hsize, the current width of text on page.
   
   % Table can continue over pages but will only break between lines.
   
   % To make preamble:
   %
   % Either define widths of columns in terms of percent of \hsize: 
   %   @multitable @columnfractions .25 .3 .45
   %   @item ...
   %
   %   Numbers following @columnfractions are the percent of the total
   %   current hsize to be used for each column. You may use as many
   %   columns as desired.
   
   
   % Or use a template:
   %   @multitable {Column 1 template} {Column 2 template} {Column 3 template}
   %   @item ...
   %   using the widest term desired in each column.
   %
   % For those who want to use more than one line's worth of words in
   % the preamble, break the line within one argument and it
   % will parse correctly, i.e.,
   %
   %     @multitable {Column 1 template} {Column 2 template} {Column 3 
   %      template}
   % Not:
   %     @multitable {Column 1 template} {Column 2 template} 
   %      {Column 3 template}
   
   % Each new table line starts with @item, each subsequent new column 
   % starts with @tab. Empty columns may be produced by supplying @tab's
   % with nothing between them for as many times as empty columns are needed,
   % ie, @tab@tab@tab will produce two empty columns.
   
   % @item, @tab, @multitable or @end multitable do not need to be on their
   % own lines, but it will not hurt if they are.
   
   % Sample multitable:
   
   %   @multitable {Column 1 template} {Column 2 template} {Column 3 template}
   %   @item first col stuff @tab second col stuff @tab third col
   %   @item 
   %   first col stuff 
   %   @tab 
   %   second col stuff 
   %   @tab 
   %   third col 
   %   @item first col stuff @tab second col stuff 
   %   @tab Many paragraphs of text may be used in any column.
   %     
   %         They will wrap at the width determined by the template.
   %   @item@tab@tab This will be in third column.
   %   @end multitable
   
   % Default dimensions may be reset by user.
   % @multitableparskip is vertical space between paragraphs in table.
   % @multitableparindent is paragraph indent in table.
   % @multitablecolmargin is horizontal space to be left between columns.
   % @multitablelinespace is space to leave between table items, baseline
   %                                                            to baseline.
   %   0pt means it depends on current normal line spacing.
   
   %%%%
   % Dimensions 
   
   \newskip\multitableparskip
   \newskip\multitableparindent
   \newdimen\multitablecolspace
   \newskip\multitablelinespace
   \multitableparskip=0pt
   \multitableparindent=6pt
   \multitablecolspace=12pt
   \multitablelinespace=0pt
   
   %%%%
   % Macros used to set up halign preamble:
   \let\endsetuptable\relax
   \def\xendsetuptable{\endsetuptable}
   \let\columnfractions\relax
   \def\xcolumnfractions{\columnfractions}
   \newif\ifsetpercent
   
   %% 2/1/96, to allow fractions to be given with more than one digit.
   \def\pickupwholefraction#1 {\global\advance\colcount by1 %
   \expandafter\xdef\csname col\the\colcount\endcsname{.#1\hsize}%
   \setuptable}
   
   \newcount\colcount
   \def\setuptable#1{\def\firstarg{#1}%
   \ifx\firstarg\xendsetuptable\let\go\relax%
   \else
     \ifx\firstarg\xcolumnfractions\global\setpercenttrue%
     \else
       \ifsetpercent
          \let\go\pickupwholefraction   % In this case arg of setuptable
                                        % is the decimal point before the
                                        % number given in percent of hsize.
                                        % We don't need this so we don't use it.
       \else
          \global\advance\colcount by1
          \setbox0=\hbox{#1 }% Add a normal word space as a separator;
                             % typically that is always in the input, anyway.
          \expandafter\xdef\csname col\the\colcount\endcsname{\the\wd0}%
       \fi%
     \fi%
   \ifx\go\pickupwholefraction\else\let\go\setuptable\fi%
   \fi\go}
   
   %%%%
   % multitable syntax
   \def\tab{&\hskip1sp\relax} % 2/2/96
                              % tiny skip here makes sure this column space is
                              % maintained, even if it is never used.
   
   
   %%%%
   % @multitable ... @end multitable definitions:
   
   \def\multitable{\parsearg\dotable}
   
   \def\dotable#1{\bgroup
   \let\item\cr
   \tolerance=9500
   \hbadness=9500
   \setmultitablespacing
   \parskip=\multitableparskip
   \parindent=\multitableparindent
   \overfullrule=0pt
   \global\colcount=0\relax%
   \def\Emultitable{\global\setpercentfalse\global\everycr{}\cr\egroup\egroup}%
    % To parse everything between @multitable and @item :
   \setuptable#1 \endsetuptable
    % Need to reset this to 0 after \setuptable.
   \global\colcount=0\relax% 
    %
    % This preamble sets up a generic column definition, which will
    % be used as many times as user calls for columns.
    % \vtop will set a single line and will also let text wrap and 
    % continue for many paragraphs if desired.
   \halign\bgroup&\global\advance\colcount by 1\relax%
   \multistrut\vtop{\hsize=\expandafter\csname col\the\colcount\endcsname
    % In order to keep entries from bumping into each other
    % we will add a \leftskip of \multitablecolspace to all columns after
    % the first one.
    %  If a template has been used, we will add \multitablecolspace 
    % to the width of each template entry.
    %  If user has set preamble in terms of percent of \hsize
    % we will use that dimension as the width of the column, and
    % the \leftskip will keep entries from bumping into each other.
    % Table will start at left margin and final column will justify at
    % right margin.
   \ifnum\colcount=1
   \else
     \ifsetpercent
     \else
      % If user has <not> set preamble in terms of percent of \hsize
      % we will advance \hsize by \multitablecolspace 
     \advance\hsize by \multitablecolspace
     \fi
    % In either case we will make \leftskip=\multitablecolspace:
   \leftskip=\multitablecolspace
   \fi
   \noindent##\multistrut}\cr%
    % \everycr will reset column counter, \colcount, at the end of
    % each line. Every column  entry will cause \colcount to advance by one. 
    % The table preamble
    % looks at the current \colcount to find the correct column width.
   \global\everycr{\noalign{%
   \filbreak%% keeps underfull box messages off when table breaks over pages.
   \global\colcount=0\relax}}
   }
   
   \def\setmultitablespacing{% test to see if user has set \multitablelinespace.
   % If so, do nothing. If not, give it an appropriate dimension based on
   % current baselineskip.
   \ifdim\multitablelinespace=0pt
   %% strut to put in table in case some entry doesn't have descenders,
   %% to keep lines equally spaced
   \let\multistrut = \strut
   %% Test to see if parskip is larger than space between lines of
   %% table. If not, do nothing. 
   %%        If so, set to same dimension as multitablelinespace.
   \else
   \gdef\multistrut{\vrule height\multitablelinespace depth\dp0
   width0pt\relax} \fi
   \ifdim\multitableparskip>\multitablelinespace
   \global\multitableparskip=\multitablelinespace
   \global\advance\multitableparskip-7pt %% to keep parskip somewhat smaller
                                         %% than skip between lines in the table.
   \fi%
   \ifdim\multitableparskip=0pt
   \global\multitableparskip=\multitablelinespace
   \global\advance\multitableparskip-7pt %% to keep parskip somewhat smaller
                                         %% than skip between lines in the table.
   \fi}
   
   
 \message{indexing,}  \message{indexing,}
 % Index generation facilities  % Index generation facilities
   
Line 1251  July\or August\or September\or October\o Line 2083  July\or August\or September\or October\o
 % It automatically defines \fooindex such that  % It automatically defines \fooindex such that
 % \fooindex ...rest of line... puts an entry in the index foo.  % \fooindex ...rest of line... puts an entry in the index foo.
 % It also defines \fooindfile to be the number of the output channel for  % It also defines \fooindfile to be the number of the output channel for
 % the file that accumulates this index.  The file's extension is foo.  % the file that accumulates this index.  The file's extension is foo.
 % The name of an index should be no more than 2 characters long  % The name of an index should be no more than 2 characters long
 % for the sake of vms.  % for the sake of vms.
   
 \def\newindex #1{  \def\newindex #1{
 \expandafter\newwrite \csname#1indfile\endcsname% Define number for output file  \expandafter\newwrite \csname#1indfile\endcsname% Define number for output file
 \openout \csname#1indfile\endcsname \jobname.#1 % Open the file  \openout \csname#1indfile\endcsname \jobname.#1 % Open the file
 \expandafter\xdef\csname#1index\endcsname{%     % Define \xxxindex  \expandafter\xdef\csname#1index\endcsname{%     % Define \xxxindex
 \noexpand\doindex {#1}}  \noexpand\doindex {#1}}
 }  }
   
Line 1270  July\or August\or September\or October\o Line 2102  July\or August\or September\or October\o
   
 \def\newcodeindex #1{  \def\newcodeindex #1{
 \expandafter\newwrite \csname#1indfile\endcsname% Define number for output file  \expandafter\newwrite \csname#1indfile\endcsname% Define number for output file
 \openout \csname#1indfile\endcsname \jobname.#1 % Open the file  \openout \csname#1indfile\endcsname \jobname.#1 % Open the file
 \expandafter\xdef\csname#1index\endcsname{%     % Define \xxxindex  \expandafter\xdef\csname#1index\endcsname{%     % Define \xxxindex
 \noexpand\docodeindex {#1}}  \noexpand\docodeindex {#1}}
 }  }
   
Line 1282  July\or August\or September\or October\o Line 2114  July\or August\or September\or October\o
 \def\synindex #1 #2 {%  \def\synindex #1 #2 {%
 \expandafter\let\expandafter\synindexfoo\expandafter=\csname#2indfile\endcsname  \expandafter\let\expandafter\synindexfoo\expandafter=\csname#2indfile\endcsname
 \expandafter\let\csname#1indfile\endcsname=\synindexfoo  \expandafter\let\csname#1indfile\endcsname=\synindexfoo
 \expandafter\xdef\csname#1index\endcsname{%     % Define \xxxindex  \expandafter\xdef\csname#1index\endcsname{%     % Define \xxxindex
 \noexpand\doindex {#2}}%  \noexpand\doindex {#2}}%
 }  }
   
Line 1291  July\or August\or September\or October\o Line 2123  July\or August\or September\or October\o
 \def\syncodeindex #1 #2 {%  \def\syncodeindex #1 #2 {%
 \expandafter\let\expandafter\synindexfoo\expandafter=\csname#2indfile\endcsname  \expandafter\let\expandafter\synindexfoo\expandafter=\csname#2indfile\endcsname
 \expandafter\let\csname#1indfile\endcsname=\synindexfoo  \expandafter\let\csname#1indfile\endcsname=\synindexfoo
 \expandafter\xdef\csname#1index\endcsname{%     % Define \xxxindex  \expandafter\xdef\csname#1index\endcsname{%     % Define \xxxindex
 \noexpand\docodeindex {#2}}%  \noexpand\docodeindex {#2}}%
 }  }
   
Line 1313  July\or August\or September\or October\o Line 2145  July\or August\or September\or October\o
 \def\singlecodeindexer #1{\doind{\indexname}{\code{#1}}}  \def\singlecodeindexer #1{\doind{\indexname}{\code{#1}}}
   
 \def\indexdummies{%  \def\indexdummies{%
   % Take care of the plain tex accent commands.
   \def\"{\realbackslash "}%
   \def\`{\realbackslash `}%
   \def\'{\realbackslash '}%
   \def\^{\realbackslash ^}%
   \def\~{\realbackslash ~}%
   \def\={\realbackslash =}%
   \def\b{\realbackslash b}%
   \def\c{\realbackslash c}%
   \def\d{\realbackslash d}%
   \def\u{\realbackslash u}%
   \def\v{\realbackslash v}%
   \def\H{\realbackslash H}%
   % Take care of the plain tex special European modified letters.
   \def\oe{\realbackslash oe}%
   \def\ae{\realbackslash ae}%
   \def\aa{\realbackslash aa}%
   \def\OE{\realbackslash OE}%
   \def\AE{\realbackslash AE}%
   \def\AA{\realbackslash AA}%
   \def\o{\realbackslash o}%
   \def\O{\realbackslash O}%
   \def\l{\realbackslash l}%
   \def\L{\realbackslash L}%
   \def\ss{\realbackslash ss}%
   % Take care of texinfo commands likely to appear in an index entry.
   % (Must be a way to avoid doing expansion at all, and thus not have to
   % laboriously list every single command here.)
   \def\@{@}% will be @@ when we switch to @ as escape char.
   %\let\{ = \lbracecmd
   %\let\} = \rbracecmd
 \def\_{{\realbackslash _}}%  \def\_{{\realbackslash _}}%
 \def\w{\realbackslash w }%  \def\w{\realbackslash w }%
 \def\bf{\realbackslash bf }%  \def\bf{\realbackslash bf }%
 \def\rm{\realbackslash rm }%  %\def\rm{\realbackslash rm }%
 \def\sl{\realbackslash sl }%  \def\sl{\realbackslash sl }%
 \def\sf{\realbackslash sf}%  \def\sf{\realbackslash sf}%
 \def\tt{\realbackslash tt}%  \def\tt{\realbackslash tt}%
 \def\gtr{\realbackslash gtr}%  \def\gtr{\realbackslash gtr}%
 \def\less{\realbackslash less}%  \def\less{\realbackslash less}%
 \def\hat{\realbackslash hat}%  \def\hat{\realbackslash hat}%
 \def\char{\realbackslash char}%  %\def\char{\realbackslash char}%
 \def\TeX{\realbackslash TeX}%  \def\TeX{\realbackslash TeX}%
 \def\dots{\realbackslash dots }%  \def\dots{\realbackslash dots }%
 \def\copyright{\realbackslash copyright }%  \def\copyright{\realbackslash copyright }%
 \def\tclose##1{\realbackslash tclose {##1}}%  \def\tclose##1{\realbackslash tclose {##1}}%
 \def\code##1{\realbackslash code {##1}}%  \def\code##1{\realbackslash code {##1}}%
   \def\dotless##1{\realbackslash dotless {##1}}%
 \def\samp##1{\realbackslash samp {##1}}%  \def\samp##1{\realbackslash samp {##1}}%
 \def\t##1{\realbackslash r {##1}}%  \def\,##1{\realbackslash ,{##1}}%
   \def\t##1{\realbackslash t {##1}}%
 \def\r##1{\realbackslash r {##1}}%  \def\r##1{\realbackslash r {##1}}%
 \def\i##1{\realbackslash i {##1}}%  \def\i##1{\realbackslash i {##1}}%
 \def\b##1{\realbackslash b {##1}}%  \def\b##1{\realbackslash b {##1}}%
Line 1339  July\or August\or September\or October\o Line 2204  July\or August\or September\or October\o
 \def\file##1{\realbackslash file {##1}}%  \def\file##1{\realbackslash file {##1}}%
 \def\var##1{\realbackslash var {##1}}%  \def\var##1{\realbackslash var {##1}}%
 \def\kbd##1{\realbackslash kbd {##1}}%  \def\kbd##1{\realbackslash kbd {##1}}%
   \def\dfn##1{\realbackslash dfn {##1}}%
   \def\emph##1{\realbackslash emph {##1}}%
   \unsepspaces
 }  }
   
   % If an index command is used in an @example environment, any spaces
   % therein should become regular spaces in the raw index file, not the
   % expansion of \tie (\\leavevmode \penalty \@M \ ).
   {\obeyspaces
    \gdef\unsepspaces{\obeyspaces\let =\space}}
   
 % \indexnofonts no-ops all font-change commands.  % \indexnofonts no-ops all font-change commands.
 % This is used when outputting the strings to sort the index by.  % This is used when outputting the strings to sort the index by.
 \def\indexdummyfont#1{#1}  \def\indexdummyfont#1{#1}
Line 1348  July\or August\or September\or October\o Line 2222  July\or August\or September\or October\o
 \def\indexdummydots{...}  \def\indexdummydots{...}
   
 \def\indexnofonts{%  \def\indexnofonts{%
   % Just ignore accents.
   \let\,=\indexdummyfont
   \let\"=\indexdummyfont
   \let\`=\indexdummyfont
   \let\'=\indexdummyfont
   \let\^=\indexdummyfont
   \let\~=\indexdummyfont
   \let\==\indexdummyfont
   \let\b=\indexdummyfont
   \let\c=\indexdummyfont
   \let\d=\indexdummyfont
   \let\u=\indexdummyfont
   \let\v=\indexdummyfont
   \let\H=\indexdummyfont
   \let\dotless=\indexdummyfont
   % Take care of the plain tex special European modified letters.
   \def\oe{oe}%
   \def\ae{ae}%
   \def\aa{aa}%
   \def\OE{OE}%
   \def\AE{AE}%
   \def\AA{AA}%
   \def\o{o}%
   \def\O{O}%
   \def\l{l}%
   \def\L{L}%
   \def\ss{ss}%
 \let\w=\indexdummyfont  \let\w=\indexdummyfont
 \let\t=\indexdummyfont  \let\t=\indexdummyfont
 \let\r=\indexdummyfont  \let\r=\indexdummyfont
Line 1369  July\or August\or September\or October\o Line 2270  July\or August\or September\or October\o
 \let\var=\indexdummyfont  \let\var=\indexdummyfont
 \let\TeX=\indexdummytex  \let\TeX=\indexdummytex
 \let\dots=\indexdummydots  \let\dots=\indexdummydots
   \def\@{@}%
 }  }
   
 % To define \realbackslash, we must make \ not be an escape.  % To define \realbackslash, we must make \ not be an escape.
Line 1380  July\or August\or September\or October\o Line 2282  July\or August\or September\or October\o
   
 \let\indexbackslash=0  %overridden during \printindex.  \let\indexbackslash=0  %overridden during \printindex.
   
   \let\SETmarginindex=\relax %initialize!
   % workhorse for all \fooindexes
   % #1 is name of index, #2 is stuff to put there
 \def\doind #1#2{%  \def\doind #1#2{%
 {\count10=\lastpenalty %    % Put the index entry in the margin if desired.
 {\indexdummies % Must do this here, since \bf, etc expand at this stage    \ifx\SETmarginindex\relax\else
 \escapechar=`\\%      \insert\margin{\hbox{\vrule height8pt depth3pt width0pt #2}}%
 {\let\folio=0% Expand all macros now EXCEPT \folio    \fi
 \def\rawbackslashxx{\indexbackslash}% \indexbackslash isn't defined now    {%
 % so it will be output as is; and it will print as backslash in the indx.      \count255=\lastpenalty
 %      {%
 % Now process the index-string once, with all font commands turned off,        \indexdummies % Must do this here, since \bf, etc expand at this stage
 % to get the string to sort the index by.        \escapechar=`\\
 {\indexnofonts        {%
 \xdef\temp1{#2}%          \let\folio=0 % We will expand all macros now EXCEPT \folio.
 }%          \def\rawbackslashxx{\indexbackslash}% \indexbackslash isn't defined now
 % Now produce the complete index entry.  We process the index-string again,          % so it will be output as is; and it will print as backslash.
 % this time with font commands expanded, to get what to print in the index.          %
 \edef\temp{%          % First process the index-string with all font commands turned off
 \write \csname#1indfile\endcsname{%          % to get the string to sort by.
 \realbackslash entry {\temp1}{\folio}{#2}}}%          {\indexnofonts \xdef\indexsorttmp{#2}}%
 \temp }%          %
 }\penalty\count10}}          % Now produce the complete index entry, with both the sort key and the
           % original text, including any font commands.
           \toks0 = {#2}%
           \edef\temp{%
             \write\csname#1indfile\endcsname{%
               \realbackslash entry{\indexsorttmp}{\folio}{\the\toks0}}%
           }%
           \temp
         }%
       }%
       \penalty\count255
     }%
   }
   
 \def\dosubind #1#2#3{%  \def\dosubind #1#2#3{%
 {\count10=\lastpenalty %  {\count10=\lastpenalty %
Line 1436  July\or August\or September\or October\o Line 2353  July\or August\or September\or October\o
 %  \secondary {subtopic}{pagelist}  %  \secondary {subtopic}{pagelist}
 %     for each subtopic.  %     for each subtopic.
   
 % Define the user-accessible indexing commands   % Define the user-accessible indexing commands
 % @findex, @vindex, @kindex, @cindex.  % @findex, @vindex, @kindex, @cindex.
   
 \def\findex {\fnindex}  \def\findex {\fnindex}
Line 1460  July\or August\or September\or October\o Line 2377  July\or August\or September\or October\o
   
 \def\printindex{\parsearg\doprintindex}  \def\printindex{\parsearg\doprintindex}
   
 \def\doprintindex#1{%  \def\doprintindex#1{\begingroup
   \tex    \dobreak \chapheadingskip{10000}%
   \dobreak \chapheadingskip {10000}    %
   \catcode`\%=\other\catcode`\&=\other\catcode`\#=\other    \indexfonts \rm
   \catcode`\$=\other\catcode`\_=\other    \tolerance = 9500
   \catcode`\~=\other    \indexbreaks
   %    \def\indexbackslash{\rawbackslashxx}%
   % The following don't help, since the chars were translated    % Index files are almost Texinfo source, but we use \ as the escape
   % when the raw index was written, and their fonts were discarded    % character.  It would be better to use @, but that's too big a change
   % due to \indexnofonts.    % to make right now.
   %\catcode`\"=\active    \catcode`\\ = 0
   %\catcode`\^=\active    \catcode`\@ = 11
   %\catcode`\_=\active    \escapechar = `\\
   %\catcode`\|=\active  
   %\catcode`\<=\active  
   %\catcode`\>=\active  
   % %  
   \def\indexbackslash{\rawbackslashxx}  
   \indexfonts\rm \tolerance=9500 \advance\baselineskip -1pt  
   \begindoublecolumns    \begindoublecolumns
   %    %
   % See if the index file exists and is nonempty.    % See if the index file exists and is nonempty.
   \openin 1 \jobname.#1s    \openin 1 \jobname.#1s
   \ifeof 1     \ifeof 1
     % \enddoublecolumns gets confused if there is no text in the index,      % \enddoublecolumns gets confused if there is no text in the index,
     % and it loses the chapter title and the aux file entries for the      % and it loses the chapter title and the aux file entries for the
     % index.  The easiest way to prevent this problem is to make sure      % index.  The easiest way to prevent this problem is to make sure
     % there is some text.      % there is some text.
     (Index is nonexistent)      (Index is nonexistent)
     \else    \else
     %      %
     % If the index file exists but is empty, then \openin leaves \ifeof      % If the index file exists but is empty, then \openin leaves \ifeof
     % false.  We have to make TeX try to read something from the file, so      % false.  We have to make TeX try to read something from the file, so
Line 1503  July\or August\or September\or October\o Line 2414  July\or August\or September\or October\o
   \fi    \fi
   \closein 1    \closein 1
   \enddoublecolumns    \enddoublecolumns
   \Etex  \endgroup}
 }  
   
 % These macros are used by the sorted index file itself.  % These macros are used by the sorted index file itself.
 % Change them to control the appearance of the index.  % Change them to control the appearance of the index.
Line 1519  July\or August\or September\or October\o Line 2429  July\or August\or September\or October\o
 \removelastskip \penalty-200 \vskip \initialskipamount\fi  \removelastskip \penalty-200 \vskip \initialskipamount\fi
 \line{\secbf#1\hfill}\kern 2pt\penalty10000}}  \line{\secbf#1\hfill}\kern 2pt\penalty10000}}
   
   % This typesets a paragraph consisting of #1, dot leaders, and then #2
   % flush to the right margin.  It is used for index and table of contents
   % entries.  The paragraph is indented by \leftskip.
   %
 \def\entry #1#2{\begingroup  \def\entry #1#2{\begingroup
   \parfillskip=0in \parskip=0in \parindent=0in  
   %    %
   % \hangindent is only relevant when the page number and the entry text    % Start a new paragraph if necessary, so our assignments below can't
   % don't fit on one line.  In that case, bob suggests starting the dots    % affect previous text.
   % pretty far over on the line.    \par
   % \hangafter is reset to 1 at the start of each paragraph.    %
   \hangindent=.75\hsize    % Do not fill out the last line with white space.
   \noindent    \parfillskip = 0in
     %
     % No extra space above this paragraph.
     \parskip = 0in
     %
     % Do not prefer a separate line ending with a hyphen to fewer lines.
     \finalhyphendemerits = 0
     %
     % \hangindent is only relevant when the entry text and page number
     % don't both fit on one line.  In that case, bob suggests starting the
     % dots pretty far over on the line.  Unfortunately, a large
     % indentation looks wrong when the entry text itself is broken across
     % lines.  So we use a small indentation and put up with long leaders.
     %
     % \hangafter is reset to 1 (which is the value we want) at the start
     % of each paragraph, so we need not do anything with that.
     \hangindent=2em
     %
     % When the entry text needs to be broken, just fill out the first line
     % with blank space.
     \rightskip = 0pt plus1fil
   %    %
   % Don't break the text of the index entry.    % Start a ``paragraph'' for the index entry so the line breaking
   \hbox{#1}%    % parameters we've set above will have an effect.
     \noindent
   %    %
   % If we must, put the page number on a line of its own, and fill out    % Insert the text of the index entry.  TeX will do line-breaking on it.
   % this line with blank space.  (The \hfil is overwhelmed with the    #1%
   % fill leaders glue in \indexdotfill if the page number does fit.)    % The following is kludged to not output a line of dots in the index if
   \hfil\penalty50    % there are no page numbers.  The next person who breaks this will be
   \null\nobreak\indexdotfill % Have leaders before the page number.    % cursed by a Unix daemon.
   %    \def\tempa{{\rm }}%
   % The `\ ' here is removed by the implicit \unskip that TeX does as    \def\tempb{#2}%
   % part of (the primitive) \par.  Without, a spurious underfull \hbox ensues.    \edef\tempc{\tempa}%
   \ #2% The page number ends the paragraph.    \edef\tempd{\tempb}%
     \ifx\tempc\tempd\ \else%
       %
       % If we must, put the page number on a line of its own, and fill out
       % this line with blank space.  (The \hfil is overwhelmed with the
       % fill leaders glue in \indexdotfill if the page number does fit.)
       \hfil\penalty50
       \null\nobreak\indexdotfill % Have leaders before the page number.
       %
       % The `\ ' here is removed by the implicit \unskip that TeX does as
       % part of (the primitive) \par.  Without it, a spurious underfull
       % \hbox ensues.
       \ #2% The page number ends the paragraph.
     \fi%
   \par    \par
 \endgroup}  \endgroup}
   
 % Like \dotfill except takes at least 1 em.  % Like \dotfill except takes at least 1 em.
 \def\indexdotfill{\cleaders  \def\indexdotfill{\cleaders
   \hbox{$\mathsurround=0pt \mkern1.5mu . \mkern1.5mu$}\hskip 1em plus 1fill}    \hbox{$\mathsurround=0pt \mkern1.5mu ${\it .}$ \mkern1.5mu$}\hskip 1em plus 1fill}
   
 \def\primary #1{\line{#1\hfil}}  \def\primary #1{\line{#1\hfil}}
   
Line 1558  July\or August\or September\or October\o Line 2505  July\or August\or September\or October\o
 \noindent\hskip\secondaryindent\hbox{#1}\indexdotfill #2\par  \noindent\hskip\secondaryindent\hbox{#1}\indexdotfill #2\par
 }}  }}
   
 %% Define two-column mode, which is used in indexes.  % Define two-column mode, which we use to typeset indexes.
 %% Adapted from the TeXBook, page 416  % Adapted from the TeXbook, page 416, which is to say,
 \catcode `\@=11  % the manmac.tex format used to print the TeXbook itself.
   \catcode`\@=11
   
 \newbox\partialpage  \newbox\partialpage
   \newdimen\doublecolumnhsize
   
 \newdimen\doublecolumnhsize  \doublecolumnhsize = 3.11in  \def\begindoublecolumns{\begingroup % ended by \enddoublecolumns
 \newdimen\doublecolumnvsize  \doublecolumnvsize = 19.1in    % Grab any single-column material above us.
 \newdimen\availdimen@    \output = {\global\setbox\partialpage
       =\vbox{\unvbox255\kern -\topskip \kern \baselineskip}}%
 \def\begindoublecolumns{\begingroup    \eject
   \output={\global\setbox\partialpage=    %
     \vbox{\unvbox255\kern -\topskip \kern \baselineskip}}\eject    % Now switch to the double-column output routine.
   \output={\doublecolumnout}%    \output={\doublecolumnout}%
   \hsize=\doublecolumnhsize \vsize=\doublecolumnvsize}    %
 \def\enddoublecolumns{\output={\balancecolumns}\eject    % Change the page size parameters.  We could do this once outside this
   \endgroup \pagegoal=\vsize}    % routine, in each of @smallbook, @afourpaper, and the default 8.5x11
     % format, but then we repeat the same computation.  Repeating a couple
 \def\doublecolumnout{\splittopskip=\topskip \splitmaxdepth=\maxdepth    % of assignments once per index is clearly meaningless for the
     % execution time, so we may as well do it once.
     %
     % First we halve the line length, less a little for the gutter between
     % the columns.  We compute the gutter based on the line length, so it
     % changes automatically with the paper format.  The magic constant
     % below is chosen so that the gutter has the same value (well, +- <
     % 1pt) as it did when we hard-coded it.
     %
     % We put the result in a separate register, \doublecolumhsize, so we
     % can restore it in \pagesofar, after \hsize itself has (potentially)
     % been clobbered.
     %
     \doublecolumnhsize = \hsize
       \advance\doublecolumnhsize by -.04154\hsize
       \divide\doublecolumnhsize by 2
     \hsize = \doublecolumnhsize
     %
     % Double the \vsize as well.  (We don't need a separate register here,
     % since nobody clobbers \vsize.)
     \vsize = 2\vsize
   }
   \def\doublecolumnout{%
     \splittopskip=\topskip \splitmaxdepth=\maxdepth
     % Get the available space for the double columns -- the normal
     % (undoubled) page height minus any material left over from the
     % previous page.
   \dimen@=\pageheight \advance\dimen@ by-\ht\partialpage    \dimen@=\pageheight \advance\dimen@ by-\ht\partialpage
     % box0 will be the left-hand column, box1 the right.
   \setbox0=\vsplit255 to\dimen@ \setbox2=\vsplit255 to\dimen@    \setbox0=\vsplit255 to\dimen@ \setbox2=\vsplit255 to\dimen@
   \onepageout\pagesofar \unvbox255 \penalty\outputpenalty}    \onepageout\pagesofar
 \def\pagesofar{\unvbox\partialpage %    \unvbox255 \penalty\outputpenalty
   \hsize=\doublecolumnhsize % have to restore this since output routine  }
 %             changes it to set cropmarks (P. A. MacKay, 12 Nov. 1986)  \def\pagesofar{%
   \wd0=\hsize \wd2=\hsize \hbox to\pagewidth{\box0\hfil\box2}}    % The contents of the output page -- any previous material,
     % followed by the two boxes we just split.
     \unvbox\partialpage
     \hsize = \doublecolumnhsize
     \wd0=\hsize \wd2=\hsize \hbox to\pagewidth{\box0\hfil\box2}%
   }
   \def\enddoublecolumns{%
     \output={\balancecolumns}\eject % split what we have
     \endgroup
     % Back to normal single-column typesetting, but take account of the
     % fact that we just accumulated some stuff on the output page.
     \pagegoal=\vsize 
   }
 \def\balancecolumns{%  \def\balancecolumns{%
 % Unset the glue.    % Called on the last page of the double column material.
   \setbox255=\vbox{\unvbox255}    \setbox0=\vbox{\unvbox255}%
   \dimen@=\ht255    \dimen@ = \ht0
   \advance\dimen@ by\topskip \advance\dimen@ by-\baselineskip    \advance\dimen@ by \topskip
   \divide\dimen@ by2    \advance\dimen@ by-\baselineskip
   \availdimen@=\pageheight \advance\availdimen@ by-\ht\partialpage    \divide\dimen@ by 2
 % If the remaining data is too big for one page,    \splittopskip = \topskip
 % output one page normally, then work with what remains.    % Loop until we get a decent breakpoint.
   \ifdim \dimen@>\availdimen@  
    {  
      \splittopskip=\topskip \splitmaxdepth=\maxdepth  
      \dimen@=\pageheight \advance\dimen@ by-\ht\partialpage  
      \setbox0=\vsplit255 to\dimen@ \setbox2=\vsplit255 to\dimen@  
      \onepageout\pagesofar  
    }  
 % Recompute size of what remains, in case we just output some of it.  
   \dimen@=\ht255  
   \advance\dimen@ by\topskip \advance\dimen@ by-\baselineskip  
   \divide\dimen@ by2  
   \fi  
   \setbox0=\vbox{\unvbox255}  
   \splittopskip=\topskip  
   {\vbadness=10000 \loop \global\setbox3=\copy0    {\vbadness=10000 \loop \global\setbox3=\copy0
     \global\setbox1=\vsplit3 to\dimen@      \global\setbox1=\vsplit3 to\dimen@
     \ifdim\ht3>\dimen@ \global\advance\dimen@ by1pt \repeat}      \ifdim\ht3>\dimen@ \global\advance\dimen@ by1pt \repeat}%
   \setbox0=\vbox to\dimen@{\unvbox1}  \setbox2=\vbox to\dimen@{\unvbox3}    \setbox0=\vbox to\dimen@{\unvbox1}%
   \pagesofar}    \setbox2=\vbox to\dimen@{\unvbox3}%
     \pagesofar
   }
 \catcode `\@=\other  \catcode `\@=\other
   
   
 \message{sectioning,}  \message{sectioning,}
 % Define chapters, sections, etc.  % Define chapters, sections, etc.
   
Line 1672  July\or August\or September\or October\o Line 2649  July\or August\or September\or October\o
 \def\dfn##1{\realbackslash dfn {##1}}  \def\dfn##1{\realbackslash dfn {##1}}
 }  }
   
   \newcount\absseclevel % used to calculate proper heading level
   \newcount\secbase\secbase=0 % @raise/lowersections modify this count
   
   % @raisesections: treat @section as chapter, @subsection as section, etc.
   \def\raisesections{\global\advance\secbase by -1}
   \let\up=\raisesections % original BFox name
   
   % @lowersections: treat @chapter as section, @section as subsection, etc.
   \def\lowersections{\global\advance\secbase by 1}
   \let\down=\lowersections % original BFox name
   
   % Choose a numbered-heading macro
   % #1 is heading level if unmodified by @raisesections or @lowersections
   % #2 is text for heading
   \def\numhead#1#2{\absseclevel=\secbase\advance\absseclevel by #1
   \ifcase\absseclevel
     \chapterzzz{#2}
   \or
     \seczzz{#2}
   \or
     \numberedsubseczzz{#2}
   \or
     \numberedsubsubseczzz{#2}
   \else
     \ifnum \absseclevel<0
       \chapterzzz{#2}
     \else
       \numberedsubsubseczzz{#2}
     \fi
   \fi
   }
   
   % like \numhead, but chooses appendix heading levels
   \def\apphead#1#2{\absseclevel=\secbase\advance\absseclevel by #1
   \ifcase\absseclevel
     \appendixzzz{#2}
   \or
     \appendixsectionzzz{#2}
   \or
     \appendixsubseczzz{#2}
   \or
     \appendixsubsubseczzz{#2}
   \else
     \ifnum \absseclevel<0
       \appendixzzz{#2}
     \else
       \appendixsubsubseczzz{#2}
     \fi
   \fi
   }
   
   % like \numhead, but chooses numberless heading levels
   \def\unnmhead#1#2{\absseclevel=\secbase\advance\absseclevel by #1
   \ifcase\absseclevel
     \unnumberedzzz{#2}
   \or
     \unnumberedseczzz{#2}
   \or
     \unnumberedsubseczzz{#2}
   \or
     \unnumberedsubsubseczzz{#2}
   \else
     \ifnum \absseclevel<0
       \unnumberedzzz{#2}
     \else
       \unnumberedsubsubseczzz{#2}
     \fi
   \fi
   }
   
   
 \def\thischaptername{No Chapter Title}  \def\thischaptername{No Chapter Title}
 \outer\def\chapter{\parsearg\chapterzzz}  \outer\def\chapter{\parsearg\chapteryyy}
   \def\chapteryyy #1{\numhead0{#1}} % normally numhead0 calls chapterzzz
 \def\chapterzzz #1{\seccheck{chapter}%  \def\chapterzzz #1{\seccheck{chapter}%
 \secno=0 \subsecno=0 \subsubsecno=0  \secno=0 \subsecno=0 \subsubsecno=0
 \global\advance \chapno by 1 \message{Chapter \the\chapno}%  \global\advance \chapno by 1 \message{\putwordChapter \the\chapno}%
 \chapmacro {#1}{\the\chapno}%  \chapmacro {#1}{\the\chapno}%
 \gdef\thissection{#1}%  \gdef\thissection{#1}%
 \gdef\thischaptername{#1}%  \gdef\thischaptername{#1}%
 % We don't substitute the actual chapter name into \thischapter  % We don't substitute the actual chapter name into \thischapter
 % because we don't want its macros evaluated now.  % because we don't want its macros evaluated now.
 \xdef\thischapter{Chapter \the\chapno: \noexpand\thischaptername}%  \xdef\thischapter{\putwordChapter{} \the\chapno: \noexpand\thischaptername}%
 {\chapternofonts%  {\chapternofonts%
 \edef\temp{{\realbackslash chapentry {#1}{\the\chapno}{\noexpand\folio}}}%  \edef\temp{{\realbackslash chapentry {#1}{\the\chapno}{\noexpand\folio}}}%
 \escapechar=`\\%  \escapechar=`\\%
Line 1693  July\or August\or September\or October\o Line 2742  July\or August\or September\or October\o
 \global\let\subsubsection = \numberedsubsubsec  \global\let\subsubsection = \numberedsubsubsec
 }}  }}
   
 \outer\def\appendix{\parsearg\appendixzzz}  \outer\def\appendix{\parsearg\appendixyyy}
   \def\appendixyyy #1{\apphead0{#1}} % normally apphead0 calls appendixzzz
 \def\appendixzzz #1{\seccheck{appendix}%  \def\appendixzzz #1{\seccheck{appendix}%
 \secno=0 \subsecno=0 \subsubsecno=0  \secno=0 \subsecno=0 \subsubsecno=0
 \global\advance \appendixno by 1 \message{Appendix \appendixletter}%  \global\advance \appendixno by 1 \message{Appendix \appendixletter}%
 \chapmacro {#1}{Appendix \appendixletter}%  \chapmacro {#1}{\putwordAppendix{} \appendixletter}%
 \gdef\thissection{#1}%  \gdef\thissection{#1}%
 \gdef\thischaptername{#1}%  \gdef\thischaptername{#1}%
 \xdef\thischapter{Appendix \appendixletter: \noexpand\thischaptername}%  \xdef\thischapter{\putwordAppendix{} \appendixletter: \noexpand\thischaptername}%
 {\chapternofonts%  {\chapternofonts%
 \edef\temp{{\realbackslash chapentry   \edef\temp{{\realbackslash chapentry
   {#1}{Appendix \appendixletter}{\noexpand\folio}}}%    {#1}{\putwordAppendix{} \appendixletter}{\noexpand\folio}}}%
 \escapechar=`\\%  \escapechar=`\\%
 \write \contentsfile \temp  %  \write \contentsfile \temp  %
 \appendixnoderef %  \appendixnoderef %
Line 1712  July\or August\or September\or October\o Line 2762  July\or August\or September\or October\o
 \global\let\subsubsection = \appendixsubsubsec  \global\let\subsubsection = \appendixsubsubsec
 }}  }}
   
 \outer\def\top{\parsearg\unnumberedzzz}  % @centerchap is like @unnumbered, but the heading is centered.
 \outer\def\unnumbered{\parsearg\unnumberedzzz}  \outer\def\centerchap{\parsearg\centerchapyyy}
   \def\centerchapyyy #1{{\let\unnumbchapmacro=\centerchapmacro \unnumberedyyy{#1}}}
   
   \outer\def\top{\parsearg\unnumberedyyy}
   \outer\def\unnumbered{\parsearg\unnumberedyyy}
   \def\unnumberedyyy #1{\unnmhead0{#1}} % normally unnmhead0 calls unnumberedzzz
 \def\unnumberedzzz #1{\seccheck{unnumbered}%  \def\unnumberedzzz #1{\seccheck{unnumbered}%
 \secno=0 \subsecno=0 \subsubsecno=0 \message{(#1)}  \secno=0 \subsecno=0 \subsubsecno=0
   %
   % This used to be simply \message{#1}, but TeX fully expands the
   % argument to \message.  Therefore, if #1 contained @-commands, TeX
   % expanded them.  For example, in `@unnumbered The @cite{Book}', TeX
   % expanded @cite (which turns out to cause errors because \cite is meant
   % to be executed, not expanded).
   %
   % Anyway, we don't want the fully-expanded definition of @cite to appear
   % as a result of the \message, we just want `@cite' itself.  We use
   % \the<toks register> to achieve this: TeX expands \the<toks> only once,
   % simply yielding the contents of the <toks register>.
   \toks0 = {#1}\message{(\the\toks0)}%
   %
 \unnumbchapmacro {#1}%  \unnumbchapmacro {#1}%
 \gdef\thischapter{#1}\gdef\thissection{#1}%  \gdef\thischapter{#1}\gdef\thissection{#1}%
 {\chapternofonts%  {\chapternofonts%
Line 1728  July\or August\or September\or October\o Line 2796  July\or August\or September\or October\o
 \global\let\subsubsection = \unnumberedsubsubsec  \global\let\subsubsection = \unnumberedsubsubsec
 }}  }}
   
 \outer\def\numberedsec{\parsearg\seczzz}  \outer\def\numberedsec{\parsearg\secyyy}
   \def\secyyy #1{\numhead1{#1}} % normally calls seczzz
 \def\seczzz #1{\seccheck{section}%  \def\seczzz #1{\seccheck{section}%
 \subsecno=0 \subsubsecno=0 \global\advance \secno by 1 %  \subsecno=0 \subsubsecno=0 \global\advance \secno by 1 %
 \gdef\thissection{#1}\secheading {#1}{\the\chapno}{\the\secno}%  \gdef\thissection{#1}\secheading {#1}{\the\chapno}{\the\secno}%
Line 1741  July\or August\or September\or October\o Line 2810  July\or August\or September\or October\o
 \penalty 10000 %  \penalty 10000 %
 }}  }}
   
 \outer\def\appendixsection{\parsearg\appendixsectionzzz}  \outer\def\appendixsection{\parsearg\appendixsecyyy}
 \outer\def\appendixsec{\parsearg\appendixsectionzzz}  \outer\def\appendixsec{\parsearg\appendixsecyyy}
   \def\appendixsecyyy #1{\apphead1{#1}} % normally calls appendixsectionzzz
 \def\appendixsectionzzz #1{\seccheck{appendixsection}%  \def\appendixsectionzzz #1{\seccheck{appendixsection}%
 \subsecno=0 \subsubsecno=0 \global\advance \secno by 1 %  \subsecno=0 \subsubsecno=0 \global\advance \secno by 1 %
 \gdef\thissection{#1}\secheading {#1}{\appendixletter}{\the\secno}%  \gdef\thissection{#1}\secheading {#1}{\appendixletter}{\the\secno}%
Line 1755  July\or August\or September\or October\o Line 2825  July\or August\or September\or October\o
 \penalty 10000 %  \penalty 10000 %
 }}  }}
   
 \outer\def\unnumberedsec{\parsearg\unnumberedseczzz}  \outer\def\unnumberedsec{\parsearg\unnumberedsecyyy}
   \def\unnumberedsecyyy #1{\unnmhead1{#1}} % normally calls unnumberedseczzz
 \def\unnumberedseczzz #1{\seccheck{unnumberedsec}%  \def\unnumberedseczzz #1{\seccheck{unnumberedsec}%
 \plainsecheading {#1}\gdef\thissection{#1}%  \plainsecheading {#1}\gdef\thissection{#1}%
 {\chapternofonts%  {\chapternofonts%
Line 1766  July\or August\or September\or October\o Line 2837  July\or August\or September\or October\o
 \penalty 10000 %  \penalty 10000 %
 }}  }}
   
 \outer\def\numberedsubsec{\parsearg\numberedsubseczzz}  \outer\def\numberedsubsec{\parsearg\numberedsubsecyyy}
   \def\numberedsubsecyyy #1{\numhead2{#1}} % normally calls numberedsubseczzz
 \def\numberedsubseczzz #1{\seccheck{subsection}%  \def\numberedsubseczzz #1{\seccheck{subsection}%
 \gdef\thissection{#1}\subsubsecno=0 \global\advance \subsecno by 1 %  \gdef\thissection{#1}\subsubsecno=0 \global\advance \subsecno by 1 %
 \subsecheading {#1}{\the\chapno}{\the\secno}{\the\subsecno}%  \subsecheading {#1}{\the\chapno}{\the\secno}{\the\subsecno}%
Line 1779  July\or August\or September\or October\o Line 2851  July\or August\or September\or October\o
 \penalty 10000 %  \penalty 10000 %
 }}  }}
   
 \outer\def\appendixsubsec{\parsearg\appendixsubseczzz}  \outer\def\appendixsubsec{\parsearg\appendixsubsecyyy}
   \def\appendixsubsecyyy #1{\apphead2{#1}} % normally calls appendixsubseczzz
 \def\appendixsubseczzz #1{\seccheck{appendixsubsec}%  \def\appendixsubseczzz #1{\seccheck{appendixsubsec}%
 \gdef\thissection{#1}\subsubsecno=0 \global\advance \subsecno by 1 %  \gdef\thissection{#1}\subsubsecno=0 \global\advance \subsecno by 1 %
 \subsecheading {#1}{\appendixletter}{\the\secno}{\the\subsecno}%  \subsecheading {#1}{\appendixletter}{\the\secno}{\the\subsecno}%
Line 1792  July\or August\or September\or October\o Line 2865  July\or August\or September\or October\o
 \penalty 10000 %  \penalty 10000 %
 }}  }}
   
 \outer\def\unnumberedsubsec{\parsearg\unnumberedsubseczzz}  \outer\def\unnumberedsubsec{\parsearg\unnumberedsubsecyyy}
   \def\unnumberedsubsecyyy #1{\unnmhead2{#1}} %normally calls unnumberedsubseczzz
 \def\unnumberedsubseczzz #1{\seccheck{unnumberedsubsec}%  \def\unnumberedsubseczzz #1{\seccheck{unnumberedsubsec}%
 \plainsecheading {#1}\gdef\thissection{#1}%  \plainsubsecheading {#1}\gdef\thissection{#1}%
 {\chapternofonts%  {\chapternofonts%
 \edef\temp{{\realbackslash unnumbsubsecentry{#1}{\noexpand\folio}}}%  \edef\temp{{\realbackslash unnumbsubsecentry{#1}{\noexpand\folio}}}%
 \escapechar=`\\%  \escapechar=`\\%
Line 1803  July\or August\or September\or October\o Line 2877  July\or August\or September\or October\o
 \penalty 10000 %  \penalty 10000 %
 }}  }}
   
 \outer\def\numberedsubsubsec{\parsearg\numberedsubsubseczzz}  \outer\def\numberedsubsubsec{\parsearg\numberedsubsubsecyyy}
   \def\numberedsubsubsecyyy #1{\numhead3{#1}} % normally numberedsubsubseczzz
 \def\numberedsubsubseczzz #1{\seccheck{subsubsection}%  \def\numberedsubsubseczzz #1{\seccheck{subsubsection}%
 \gdef\thissection{#1}\global\advance \subsubsecno by 1 %  \gdef\thissection{#1}\global\advance \subsubsecno by 1 %
 \subsubsecheading {#1}  \subsubsecheading {#1}
Line 1819  July\or August\or September\or October\o Line 2894  July\or August\or September\or October\o
 \penalty 10000 %  \penalty 10000 %
 }}  }}
   
 \outer\def\appendixsubsubsec{\parsearg\appendixsubsubseczzz}  \outer\def\appendixsubsubsec{\parsearg\appendixsubsubsecyyy}
   \def\appendixsubsubsecyyy #1{\apphead3{#1}} % normally appendixsubsubseczzz
 \def\appendixsubsubseczzz #1{\seccheck{appendixsubsubsec}%  \def\appendixsubsubseczzz #1{\seccheck{appendixsubsubsec}%
 \gdef\thissection{#1}\global\advance \subsubsecno by 1 %  \gdef\thissection{#1}\global\advance \subsubsecno by 1 %
 \subsubsecheading {#1}  \subsubsecheading {#1}
Line 1834  July\or August\or September\or October\o Line 2910  July\or August\or September\or October\o
 \penalty 10000 %  \penalty 10000 %
 }}  }}
   
 \outer\def\unnumberedsubsubsec{\parsearg\unnumberedsubsubseczzz}  \outer\def\unnumberedsubsubsec{\parsearg\unnumberedsubsubsecyyy}
   \def\unnumberedsubsubsecyyy #1{\unnmhead3{#1}} %normally unnumberedsubsubseczzz
 \def\unnumberedsubsubseczzz #1{\seccheck{unnumberedsubsubsec}%  \def\unnumberedsubsubseczzz #1{\seccheck{unnumberedsubsubsec}%
 \plainsecheading {#1}\gdef\thissection{#1}%  \plainsubsubsecheading {#1}\gdef\thissection{#1}%
 {\chapternofonts%  {\chapternofonts%
 \edef\temp{{\realbackslash unnumbsubsubsecentry{#1}{\noexpand\folio}}}%  \edef\temp{{\realbackslash unnumbsubsubsecentry{#1}{\noexpand\folio}}}%
 \escapechar=`\\%  \escapechar=`\\%
Line 1874  July\or August\or September\or October\o Line 2951  July\or August\or September\or October\o
   
 % NOTE on use of \vbox for chapter headings, section headings, and  % NOTE on use of \vbox for chapter headings, section headings, and
 % such:  % such:
 %       1) We use \vbox rather than the earlier \line to permit  %       1) We use \vbox rather than the earlier \line to permit
 %          overlong headings to fold.  %          overlong headings to fold.
 %       2) \hyphenpenalty is set to 10000 because hyphenation in a  %       2) \hyphenpenalty is set to 10000 because hyphenation in a
 %          heading is obnoxious; this forbids it.  %          heading is obnoxious; this forbids it.
 %       3) Likewise, headings look best if no \parindent is used, and  %       3) Likewise, headings look best if no \parindent is used, and
 %          if justification is not attempted.  Hence \raggedright.  %          if justification is not attempted.  Hence \raggedright.
   
Line 1895  July\or August\or September\or October\o Line 2972  July\or August\or September\or October\o
                   \parindent=0pt\raggedright                    \parindent=0pt\raggedright
                   \rm #1\hfill}}\bigskip \par\penalty 200}                    \rm #1\hfill}}\bigskip \par\penalty 200}
   
 \def\heading{\parsearg\secheadingi}  % @heading, @subheading, @subsubheading.
   \def\heading{\parsearg\plainsecheading}
 \def\subheading{\parsearg\subsecheadingi}  \def\subheading{\parsearg\plainsubsecheading}
   \def\subsubheading{\parsearg\plainsubsubsecheading}
 \def\subsubheading{\parsearg\subsubsecheadingi}  
   
 % These macros generate a chapter, section, etc. heading only  % These macros generate a chapter, section, etc. heading only
 % (including whitespace, linebreaking, etc. around it),  % (including whitespace, linebreaking, etc. around it),
Line 1913  July\or August\or September\or October\o Line 2989  July\or August\or September\or October\o
 %%% Define plain chapter starts, and page on/off switching for it  %%% Define plain chapter starts, and page on/off switching for it
 % Parameter controlling skip before chapter headings (if needed)  % Parameter controlling skip before chapter headings (if needed)
   
 \newskip \chapheadingskip \chapheadingskip = 30pt plus 8pt minus 4pt  \newskip\chapheadingskip
   
 \def\chapbreak{\dobreak \chapheadingskip {-4000}}  \def\chapbreak{\dobreak \chapheadingskip {-4000}}
 \def\chappager{\par\vfill\supereject}  \def\chappager{\par\vfill\supereject}
Line 1922  July\or August\or September\or October\o Line 2998  July\or August\or September\or October\o
 \def\setchapternewpage #1 {\csname CHAPPAG#1\endcsname}  \def\setchapternewpage #1 {\csname CHAPPAG#1\endcsname}
   
 \def\CHAPPAGoff{  \def\CHAPPAGoff{
   \global\let\contentsalignmacro = \chappager
 \global\let\pchapsepmacro=\chapbreak  \global\let\pchapsepmacro=\chapbreak
 \global\let\pagealignmacro=\chappager}  \global\let\pagealignmacro=\chappager}
   
 \def\CHAPPAGon{  \def\CHAPPAGon{
   \global\let\contentsalignmacro = \chappager
 \global\let\pchapsepmacro=\chappager  \global\let\pchapsepmacro=\chappager
 \global\let\pagealignmacro=\chappager  \global\let\pagealignmacro=\chappager
 \global\def\HEADINGSon{\HEADINGSsingle}}  \global\def\HEADINGSon{\HEADINGSsingle}}
   
 \def\CHAPPAGodd{  \def\CHAPPAGodd{
   \global\let\contentsalignmacro = \chapoddpage
 \global\let\pchapsepmacro=\chapoddpage  \global\let\pchapsepmacro=\chapoddpage
 \global\let\pagealignmacro=\chapoddpage  \global\let\pagealignmacro=\chapoddpage
 \global\def\HEADINGSon{\HEADINGSdouble}}  \global\def\HEADINGSon{\HEADINGSdouble}}
Line 1939  July\or August\or September\or October\o Line 3018  July\or August\or September\or October\o
   
 \def\CHAPFplain{  \def\CHAPFplain{
 \global\let\chapmacro=\chfplain  \global\let\chapmacro=\chfplain
 \global\let\unnumbchapmacro=\unnchfplain}  \global\let\unnumbchapmacro=\unnchfplain
   \global\let\centerchapmacro=\centerchfplain}
   
 \def\chfplain #1#2{%  % Plain chapter opening.
   % #1 is the text, #2 the chapter number or empty if unnumbered.
   \def\chfplain#1#2{%
   \pchapsepmacro    \pchapsepmacro
   {%    {%
     \chapfonts \vbox{\hyphenpenalty=10000\tolerance=5000      \chapfonts \rm
                      \parindent=0pt\raggedright      \def\chapnum{#2}%
                      \rm #2\enspace #1}%      \setbox0 = \hbox{#2\ifx\chapnum\empty\else\enspace\fi}%
       \vbox{\hyphenpenalty=10000 \tolerance=5000 \parindent=0pt \raggedright
             \hangindent = \wd0 \centerparametersmaybe
             \unhbox0 #1\par}%
   }%    }%
   \bigskip    \nobreak\bigskip % no page break after a chapter title
   \penalty5000    \nobreak
 }  }
   
 \def\unnchfplain #1{%  % Plain opening for unnumbered.
 \pchapsepmacro %  \def\unnchfplain#1{\chfplain{#1}{}}
 {\chapfonts \vbox{\hyphenpenalty=10000\tolerance=5000  
                   \parindent=0pt\raggedright  % @centerchap -- centered and unnumbered.
                   \rm #1\hfill}}\bigskip \par\penalty 10000 %  \let\centerparametersmaybe = \relax
 }  \def\centerchfplain#1{{%
     \def\centerparametersmaybe{%
       \advance\rightskip by 3\rightskip
       \leftskip = \rightskip
       \parfillskip = 0pt
     }%
     \chfplain{#1}{}%
   }}
   
 \CHAPFplain % The default  \CHAPFplain % The default
   
 \def\unnchfopen #1{%  \def\unnchfopen #1{%
Line 1971  July\or August\or September\or October\o Line 3064  July\or August\or September\or October\o
 \par\penalty 5000 %  \par\penalty 5000 %
 }  }
   
   \def\centerchfopen #1{%
   \chapoddpage {\chapfonts \vbox{\hyphenpenalty=10000\tolerance=5000
                          \parindent=0pt
                          \hfill {\rm #1}\hfill}}\bigskip \par\penalty 10000 %
   }
   
 \def\CHAPFopen{  \def\CHAPFopen{
 \global\let\chapmacro=\chfopen  \global\let\chapmacro=\chfopen
 \global\let\unnumbchapmacro=\unnchfopen}  \global\let\unnumbchapmacro=\unnchfopen
   \global\let\centerchapmacro=\centerchfopen}
 % Parameter controlling skip before section headings.  
   
 \newskip \subsecheadingskip  \subsecheadingskip = 17pt plus 8pt minus 4pt  
 \def\subsecheadingbreak{\dobreak \subsecheadingskip {-500}}  
   
 \newskip \secheadingskip  \secheadingskip = 21pt plus 8pt minus 4pt  % Section titles.
   \newskip\secheadingskip
 \def\secheadingbreak{\dobreak \secheadingskip {-1000}}  \def\secheadingbreak{\dobreak \secheadingskip {-1000}}
   \def\secheading#1#2#3{\sectionheading{sec}{#2.#3}{#1}}
   \def\plainsecheading#1{\sectionheading{sec}{}{#1}}
   
 % @paragraphindent  is defined for the Info formatting commands only.  % Subsection titles.
 \let\paragraphindent=\comment  \newskip \subsecheadingskip
   \def\subsecheadingbreak{\dobreak \subsecheadingskip {-500}}
   \def\subsecheading#1#2#3#4{\sectionheading{subsec}{#2.#3.#4}{#1}}
   \def\plainsubsecheading#1{\sectionheading{subsec}{}{#1}}
   
 % Section fonts are the base font at magstep2, which produces  % Subsubsection titles.
 % a size a bit more than 14 points in the default situation.      \let\subsubsecheadingskip = \subsecheadingskip
   \let\subsubsecheadingbreak = \subsecheadingbreak
   \def\subsubsecheading#1#2#3#4#5{\sectionheading{subsubsec}{#2.#3.#4.#5}{#1}}
   \def\plainsubsubsecheading#1{\sectionheading{subsubsec}{}{#1}}
   
 \def\secheading #1#2#3{\secheadingi {#2.#3\enspace #1}}  
 \def\plainsecheading #1{\secheadingi {#1}}  
 \def\secheadingi #1{{\advance \secheadingskip by \parskip %  
 \secheadingbreak}%  
 {\secfonts \vbox{\hyphenpenalty=10000\tolerance=5000  
                  \parindent=0pt\raggedright  
                  \rm #1\hfill}}%  
 \ifdim \parskip<10pt \kern 10pt\kern -\parskip\fi \penalty 10000 }  
   
   
 % Subsection fonts are the base font at magstep1,   
 % which produces a size of 12 points.  
   
 \def\subsecheading #1#2#3#4{\subsecheadingi {#2.#3.#4\enspace #1}}  
 \def\subsecheadingi #1{{\advance \subsecheadingskip by \parskip %  
 \subsecheadingbreak}%  
 {\subsecfonts \vbox{\hyphenpenalty=10000\tolerance=5000  
                      \parindent=0pt\raggedright  
                      \rm #1\hfill}}%  
 \ifdim \parskip<10pt \kern 10pt\kern -\parskip\fi \penalty 10000 }  
   
 \def\subsubsecfonts{\subsecfonts} % Maybe this should change:  
                                   % Perhaps make sssec fonts scaled  
                                   % magstep half  
 \def\subsubsecheading #1#2#3#4#5{\subsubsecheadingi {#2.#3.#4.#5\enspace #1}}  
 \def\subsubsecheadingi #1{{\advance \subsecheadingskip by \parskip %  
 \subsecheadingbreak}%  
 {\subsubsecfonts \vbox{\hyphenpenalty=10000\tolerance=5000  
                        \parindent=0pt\raggedright  
                        \rm #1\hfill}}%  
 \ifdim \parskip<10pt \kern 10pt\kern -\parskip\fi \penalty 10000}  
   
   % Print any size section title.
   % 
   % #1 is the section type (sec/subsec/subsubsec), #2 is the section
   % number (maybe empty), #3 the text.
   \def\sectionheading#1#2#3{%
     {%
       \expandafter\advance\csname #1headingskip\endcsname by \parskip
       \csname #1headingbreak\endcsname
     }%
     {%
       % Switch to the right set of fonts.
       \csname #1fonts\endcsname \rm
       %
       % Only insert the separating space if we have a section number.
       \def\secnum{#2}%
       \setbox0 = \hbox{#2\ifx\secnum\empty\else\enspace\fi}%
       %
       \vbox{\hyphenpenalty=10000 \tolerance=5000 \parindent=0pt \raggedright
             \hangindent = \wd0 % zero if no section number
             \unhbox0 #3}%
     }%
     \ifdim\parskip<10pt \nobreak\kern10pt\nobreak\kern-\parskip\fi \nobreak
   }
   
 \message{toc printing,}  
   
   \message{toc printing,}
 % Finish up the main text and prepare to read what we've written  % Finish up the main text and prepare to read what we've written
 % to \contentsfile.  % to \contentsfile.
   
 \newskip\contentsrightmargin \contentsrightmargin=1in  \newskip\contentsrightmargin \contentsrightmargin=1in
 \def\startcontents#1{%  \def\startcontents#1{%
      % If @setchapternewpage on, and @headings double, the contents should
      % start on an odd page, unlike chapters.  Thus, we maintain
      % \contentsalignmacro in parallel with \pagealignmacro.
      % From: Torbjorn Granlund <tege@matematik.su.se>
      \contentsalignmacro
      \immediate\closeout \contentsfile
    \ifnum \pageno>0     \ifnum \pageno>0
       \pageno = -1              % Request roman numbered pages.        \pageno = -1              % Request roman numbered pages.
    \fi     \fi
    \pagealignmacro     % Don't need to put `Contents' or `Short Contents' in the headline.
    \immediate\closeout \contentsfile  
    % Don't need to put `Contents' or `Short Contents' in the headline.   
    % It is abundantly clear what they are.     % It is abundantly clear what they are.
    \unnumbchapmacro{#1}\def\thischapter{}%     \unnumbchapmacro{#1}\def\thischapter{}%
    \begingroup                  % Set up to handle contents files properly.     \begingroup                  % Set up to handle contents files properly.
       \catcode`\\=0  \catcode`\{=1  \catcode`\}=2  \catcode`\@=11        \catcode`\\=0  \catcode`\{=1  \catcode`\}=2  \catcode`\@=11
         \catcode`\^=7 % to see ^^e4 as \"a etc. juha@piuha.ydi.vtt.fi
       \raggedbottom             % Worry more about breakpoints than the bottom.        \raggedbottom             % Worry more about breakpoints than the bottom.
       \advance\hsize by -\contentsrightmargin % Don't use the full line length.        \advance\hsize by -\contentsrightmargin % Don't use the full line length.
 }  }
   
     
 % Normal (long) toc.  % Normal (long) toc.
 \outer\def\contents{%  \outer\def\contents{%
    \startcontents{Table of Contents}%     \startcontents{\putwordTableofContents}%
       \input \jobname.toc        \input \jobname.toc
    \endgroup     \endgroup
    \vfill \eject     \vfill \eject
Line 2054  July\or August\or September\or October\o Line 3156  July\or August\or September\or October\o
   
 % And just the chapters.  % And just the chapters.
 \outer\def\summarycontents{%  \outer\def\summarycontents{%
    \startcontents{Short Contents}%     \startcontents{\putwordShortContents}%
       %        %
       \let\chapentry = \shortchapentry        \let\chapentry = \shortchapentry
       \let\unnumbchapentry = \shortunnumberedentry        \let\unnumbchapentry = \shortunnumberedentry
Line 2062  July\or August\or September\or October\o Line 3164  July\or August\or September\or October\o
       \secfonts        \secfonts
       \let\rm=\shortcontrm \let\bf=\shortcontbf \let\sl=\shortcontsl        \let\rm=\shortcontrm \let\bf=\shortcontbf \let\sl=\shortcontsl
       \rm        \rm
         \hyphenpenalty = 10000
       \advance\baselineskip by 1pt % Open it up a little.        \advance\baselineskip by 1pt % Open it up a little.
       \def\secentry ##1##2##3##4{}        \def\secentry ##1##2##3##4{}
       \def\unnumbsecentry ##1##2{}        \def\unnumbsecentry ##1##2{}
Line 2085  July\or August\or September\or October\o Line 3188  July\or August\or September\or October\o
   
 % See comments in \dochapentry re vbox and related settings  % See comments in \dochapentry re vbox and related settings
 \def\shortchapentry#1#2#3{%  \def\shortchapentry#1#2#3{%
    \vbox{\hyphenpenalty=10000\tolerance=5000    \tocentry{\shortchaplabel{#2}\labelspace #1}{\doshortpageno{#3}}%
     \parindent=0pt\strut\raggedright  
     {#2\labelspace #1}\dotfill\doshortpageno{#3}}%  
 }  }
   
 \def\unnumbchapentry#1#2{\dochapentry{#1}{#2}}  % Typeset the label for a chapter or appendix for the short contents.
 \def\shortunnumberedentry#1#2{%  % The arg is, e.g. `Appendix A' for an appendix, or `3' for a chapter.
    \vbox{\hyphenpenalty=10000\tolerance=5000  % We could simplify the code here by writing out an \appendixentry
     \parindent=0pt\strut\raggedright  % command in the toc file for appendices, instead of using \chapentry
     #1\dotfill\doshortpageno{#2}}%  % for both, but it doesn't seem worth it.
   \setbox0 = \hbox{\shortcontrm \putwordAppendix }
   \newdimen\shortappendixwidth \shortappendixwidth = \wd0
   
   \def\shortchaplabel#1{%
     % We typeset #1 in a box of constant width, regardless of the text of
     % #1, so the chapter titles will come out aligned.
     \setbox0 = \hbox{#1}%
     \dimen0 = \ifdim\wd0 > \shortappendixwidth \shortappendixwidth \else 0pt \fi
     %
     % This space should be plenty, since a single number is .5em, and the
     % widest letter (M) is 1em, at least in the Computer Modern fonts.
     % (This space doesn't include the extra space that gets added after
     % the label; that gets put in by \shortchapentry above.)
     \advance\dimen0 by 1.1em
     \hbox to \dimen0{#1\hfil}%
 }  }
   
   \def\unnumbchapentry#1#2{\dochapentry{#1}{#2}}
   \def\shortunnumberedentry#1#2{\tocentry{#1}{\doshortpageno{#2}}}
   
 % Sections.  % Sections.
 \def\secentry#1#2#3#4{\dosecentry{#2.#3\labelspace#1}{#4}}  \def\secentry#1#2#3#4{\dosecentry{#2.#3\labelspace#1}{#4}}
 \def\unnumbsecentry#1#2{\dosecentry{#1}{#2}}  \def\unnumbsecentry#1#2{\dosecentry{#1}{#2}}
Line 2110  July\or August\or September\or October\o Line 3229  July\or August\or September\or October\o
   \dosubsubsecentry{#2.#3.#4.#5\labelspace#1}{#6}}    \dosubsubsecentry{#2.#3.#4.#5\labelspace#1}{#6}}
 \def\unnumbsubsubsecentry#1#2{\dosubsubsecentry{#1}{#2}}  \def\unnumbsubsubsecentry#1#2{\dosubsubsecentry{#1}{#2}}
   
   
 % This parameter controls the indentation of the various levels.  % This parameter controls the indentation of the various levels.
 \newdimen\tocindent \tocindent = 3pc  \newdimen\tocindent \tocindent = 3pc
   
 % Now for the actual typesetting. In all these, #1 is the text and #2 is the   % Now for the actual typesetting. In all these, #1 is the text and #2 is the
 % page number.  % page number.
 %  %
 % If the toc has to be broken over pages, we would want to be at chapters   % If the toc has to be broken over pages, we want it to be at chapters
 % if at all possible; hence the \penalty.  % if at all possible; hence the \penalty.
 \def\dochapentry#1#2{%  \def\dochapentry#1#2{%
    \penalty-300 \vskip\baselineskip     \penalty-300 \vskip1\baselineskip plus.33\baselineskip minus.25\baselineskip
    % This \vbox (and similar ones in dosecentry etc.) used to be a     \begingroup
    % \line; changed to permit linebreaks for long headings.  See       \chapentryfonts
    % comments above \majorheading.  Here we also use \strut to       \tocentry{#1}{\dopageno{#2}}%
    % keep the top end of the vbox from jamming up against the previous     \endgroup
    % entry in the table of contents.     \nobreak\vskip .25\baselineskip plus.1\baselineskip
    \vbox{\chapentryfonts  
      \hyphenpenalty=10000\tolerance=5000 % this line and next introduced  
      \parindent=0pt\strut\raggedright    % with \line -> \vbox change  
      #1\dotfill  
      \dopageno{#2}}%  
    \nobreak\vskip .25\baselineskip  
 }  
   
 \def\dosecentry#1#2{%  
    \vbox{\secentryfonts \leftskip=\tocindent  
     \hyphenpenalty=10000\tolerance=5000  
     \parindent=0pt\strut\raggedright #1\dotfill  
     \dopageno{#2}}%  
 }  
   
 \def\dosubsecentry#1#2{%  
    \vbox{\subsecentryfonts \leftskip=2\tocindent  
     \hyphenpenalty=10000\tolerance=5000  
     \parindent=0pt\strut\raggedright #1\dotfill  
     \dopageno{#2}}%  
 }  
   
 \def\dosubsubsecentry#1#2{%  
    \vbox{\subsubsecentryfonts \leftskip=3\tocindent  
     \hyphenpenalty=10000\tolerance=5000  
     \parindent=0pt\strut\raggedright #1\dotfill  
     \dopageno{#2}}%  
 }  }
   
   \def\dosecentry#1#2{\begingroup
     \secentryfonts \leftskip=\tocindent
     \tocentry{#1}{\dopageno{#2}}%
   \endgroup}
   
   \def\dosubsecentry#1#2{\begingroup
     \subsecentryfonts \leftskip=2\tocindent
     \tocentry{#1}{\dopageno{#2}}%
   \endgroup}
   
   \def\dosubsubsecentry#1#2{\begingroup
     \subsubsecentryfonts \leftskip=3\tocindent
     \tocentry{#1}{\dopageno{#2}}%
   \endgroup}
   
   % Final typesetting of a toc entry; we use the same \entry macro as for
   % the index entries, but we want to suppress hyphenation here.  (We
   % can't do that in the \entry macro, since index entries might consist
   % of hyphenated-identifiers-that-do-not-fit-on-a-line-and-nothing-else.)
   %
   % \turnoffactive is for the sake of @" used for umlauts.
   \def\tocentry#1#2{\begingroup
     \vskip 0pt plus1pt % allow a little stretch for the sake of nice page breaks
     \entry{\turnoffactive #1}{\turnoffactive #2}%
   \endgroup}
   
 % Space between chapter (or whatever) number and the title.  % Space between chapter (or whatever) number and the title.
 \def\labelspace{\hskip1em \relax}  \def\labelspace{\hskip1em \relax}
   
Line 2169  July\or August\or September\or October\o Line 3286  July\or August\or September\or October\o
   
 \message{environments,}  \message{environments,}
   
 % Since these characters are used in examples, it should be an even number of   % Since these characters are used in examples, it should be an even number of
 % \tt widths. Each \tt character is 1en, so two makes it 1em.  % \tt widths. Each \tt character is 1en, so two makes it 1em.
 % Furthermore, these definitions must come after we define our fonts.  % Furthermore, these definitions must come after we define our fonts.
 \newbox\dblarrowbox    \newbox\longdblarrowbox  \newbox\dblarrowbox    \newbox\longdblarrowbox
 \newbox\pushcharbox    \newbox\bullbox  \newbox\pushcharbox    \newbox\bullbox
 \newbox\equivbox       \newbox\errorbox  \newbox\equivbox       \newbox\errorbox
   
 \let\ptexequiv = \equiv  
   
 %{\tentt  %{\tentt
 %\global\setbox\dblarrowbox = \hbox to 1em{\hfil$\Rightarrow$\hfil}  %\global\setbox\dblarrowbox = \hbox to 1em{\hfil$\Rightarrow$\hfil}
 %\global\setbox\longdblarrowbox = \hbox to 1em{\hfil$\mapsto$\hfil}  %\global\setbox\longdblarrowbox = \hbox to 1em{\hfil$\mapsto$\hfil}
Line 2188  July\or August\or September\or October\o Line 3303  July\or August\or September\or October\o
 %                                      depth .1ex\hfil}  %                                      depth .1ex\hfil}
 %}  %}
   
   % @point{}, @result{}, @expansion{}, @print{}, @equiv{}.
 \def\point{$\star$}  \def\point{$\star$}
   
 \def\result{\leavevmode\raise.15ex\hbox to 1em{\hfil$\Rightarrow$\hfil}}  \def\result{\leavevmode\raise.15ex\hbox to 1em{\hfil$\Rightarrow$\hfil}}
 \def\expansion{\leavevmode\raise.1ex\hbox to 1em{\hfil$\mapsto$\hfil}}  \def\expansion{\leavevmode\raise.1ex\hbox to 1em{\hfil$\mapsto$\hfil}}
 \def\print{\leavevmode\lower.1ex\hbox to 1em{\hfil$\dashv$\hfil}}  \def\print{\leavevmode\lower.1ex\hbox to 1em{\hfil$\dashv$\hfil}}
   
 \def\equiv{\leavevmode\lower.1ex\hbox to 1em{\hfil$\ptexequiv$\hfil}}  \def\equiv{\leavevmode\lower.1ex\hbox to 1em{\hfil$\ptexequiv$\hfil}}
   
 % Adapted from the TeXbook's \boxit.  % Adapted from the TeXbook's \boxit.
Line 2225  July\or August\or September\or October\o Line 3339  July\or August\or September\or October\o
 \catcode `\$=3 \catcode `\&=4 \catcode `\#=6  \catcode `\$=3 \catcode `\&=4 \catcode `\#=6
 \catcode `\^=7 \catcode `\_=8 \catcode `\~=13 \let~=\tie  \catcode `\^=7 \catcode `\_=8 \catcode `\~=13 \let~=\tie
 \catcode `\%=14  \catcode `\%=14
 \catcode 43=12  \catcode 43=12 % plus
 \catcode`\"=12  \catcode`\"=12
 \catcode`\==12  \catcode`\==12
 \catcode`\|=12  \catcode`\|=12
Line 2233  July\or August\or September\or October\o Line 3347  July\or August\or September\or October\o
 \catcode`\>=12  \catcode`\>=12
 \escapechar=`\\  \escapechar=`\\
 %  %
   \let\,=\ptexcomma
   \let\~=\ptextilde
 \let\{=\ptexlbrace  \let\{=\ptexlbrace
 \let\}=\ptexrbrace  \let\}=\ptexrbrace
 \let\.=\ptexdot  \let\.=\ptexdot
 \let\*=\ptexstar  \let\*=\ptexstar
 \let\dots=\ptexdots  \let\dots=\ptexdots
   \def\endldots{\mathinner{\ldots\ldots\ldots\ldots}}
   \def\enddots{\relax\ifmmode\endldots\else$\mathsurround=0pt \endldots\,$\fi}
 \def\@{@}%  \def\@{@}%
 \let\bullet=\ptexbullet  \let\bullet=\ptexbullet
 \let\b=\ptexb \let\c=\ptexc \let\i=\ptexi \let\t=\ptext \let\l=\ptexl  \let\b=\ptexb \let\c=\ptexc \let\i=\ptexi \let\t=\ptext
 \let\L=\ptexL  
 %  %
 \let\Etex=\endgroup}  \let\Etex=\endgroup}
   
Line 2252  July\or August\or September\or October\o Line 3369  July\or August\or September\or October\o
 % Amount to narrow the margins by for @lisp.  % Amount to narrow the margins by for @lisp.
 \newskip\lispnarrowing \lispnarrowing=0.4in  \newskip\lispnarrowing \lispnarrowing=0.4in
   
 % This is the definition that ^M gets inside @lisp  % This is the definition that ^^M gets inside @lisp, @example, and other
 % phr: changed space to \null, to avoid overfull hbox problems.  % such environments.  \null is better than a space, since it doesn't
 {\obeyspaces%  % have any width.
 \gdef\lisppar{\null\endgraf}}  \def\lisppar{\null\endgraf}
   
 % Cause \obeyspaces to make each Space cause a word-separation  % Make each space character in the input produce a normal interword
 % rather than the default which is that it acts punctuation.  % space in the output.  Don't allow a line break at this space, as this
 % This is because space in tt font looks funny.  % is used only in environments like @example, where each line of input
   % should produce a line of output anyway.
   %
 {\obeyspaces %  {\obeyspaces %
 \gdef\sepspaces{\def {\ }}}  \gdef\sepspaces{\obeyspaces\let =\tie}}
   
 \newskip\aboveenvskipamount \aboveenvskipamount= 0pt  % Define \obeyedspace to be our active space, whatever it is.  This is
 \def\aboveenvbreak{{\advance\aboveenvskipamount by \parskip  % for use in \parsearg.
 \endgraf \ifdim\lastskip<\aboveenvskipamount  {\sepspaces%
 \removelastskip \penalty-50 \vskip\aboveenvskipamount \fi}}  \global\let\obeyedspace= }
   
   % This space is always present above and below environments.
   \newskip\envskipamount \envskipamount = 0pt
   
   % Make spacing and below environment symmetrical.  We use \parskip here
   % to help in doing that, since in @example-like environments \parskip
   % is reset to zero; thus the \afterenvbreak inserts no space -- but the
   % start of the next paragraph will insert \parskip
   %
   \def\aboveenvbreak{{\advance\envskipamount by \parskip
   \endgraf \ifdim\lastskip<\envskipamount
   \removelastskip \penalty-50 \vskip\envskipamount \fi}}
   
 \def\afterenvbreak{\endgraf \ifdim\lastskip<\aboveenvskipamount  \let\afterenvbreak = \aboveenvbreak
 \removelastskip \penalty-50 \vskip\aboveenvskipamount \fi}  
   
 % \nonarrowing is a flag.  If "set", @lisp etc don't narrow margins.  % \nonarrowing is a flag.  If "set", @lisp etc don't narrow margins.
 \let\nonarrowing=\relax  \let\nonarrowing=\relax
Line 2287  July\or August\or September\or October\o Line 3417  July\or August\or September\or October\o
 \def\cbl{{\circle\char'012\hskip -6pt}}  \def\cbl{{\circle\char'012\hskip -6pt}}
 \def\cbr{{\hskip 6pt\circle\char'011}}  \def\cbr{{\hskip 6pt\circle\char'011}}
 \def\carttop{\hbox to \cartouter{\hskip\lskip  \def\carttop{\hbox to \cartouter{\hskip\lskip
         \ctl\leaders\hrule height\circthick\hfil\ctr          \ctl\leaders\hrule height\circthick\hfil\ctr
         \hskip\rskip}}          \hskip\rskip}}
 \def\cartbot{\hbox to \cartouter{\hskip\lskip  \def\cartbot{\hbox to \cartouter{\hskip\lskip
         \cbl\leaders\hrule height\circthick\hfil\cbr          \cbl\leaders\hrule height\circthick\hfil\cbr
         \hskip\rskip}}          \hskip\rskip}}
 %  %
 \newskip\lskip\newskip\rskip  \newskip\lskip\newskip\rskip
   
 \long\def\cartouche{%  \long\def\cartouche{%
 \begingroup  \begingroup
         \lskip=\leftskip \rskip=\rightskip          \lskip=\leftskip \rskip=\rightskip
         \leftskip=0pt\rightskip=0pt %we want these *outside*.          \leftskip=0pt\rightskip=0pt %we want these *outside*.
         \cartinner=\hsize \advance\cartinner by-\lskip           \cartinner=\hsize \advance\cartinner by-\lskip
                           \advance\cartinner by-\rskip                            \advance\cartinner by-\rskip
         \cartouter=\hsize          \cartouter=\hsize
         \advance\cartouter by 18pt % allow for 3pt kerns on either          \advance\cartouter by 18pt % allow for 3pt kerns on either
 %                                    side, and for 6pt waste from  %                                    side, and for 6pt waste from
 %                                    each corner char  %                                    each corner char
         \normbskip=\baselineskip \normpskip=\parskip \normlskip=\lineskip          \normbskip=\baselineskip \normpskip=\parskip \normlskip=\lineskip
         % Flag to tell @lisp, etc., not to narrow margin.          % Flag to tell @lisp, etc., not to narrow margin.
         \let\nonarrowing=\comment          \let\nonarrowing=\comment
         \vbox\bgroup          \vbox\bgroup
                 \baselineskip=0pt\parskip=0pt\lineskip=0pt                  \baselineskip=0pt\parskip=0pt\lineskip=0pt
                 \carttop                  \carttop
                 \hbox\bgroup                  \hbox\bgroup
                         \hskip\lskip                          \hskip\lskip
                         \vrule\kern3pt                          \vrule\kern3pt
                         \vbox\bgroup                          \vbox\bgroup
                                 \hsize=\cartinner                                  \hsize=\cartinner
                                 \kern3pt                                  \kern3pt
                                 \begingroup                                  \begingroup
                                         \baselineskip=\normbskip                                          \baselineskip=\normbskip
                                         \lineskip=\normlskip                                          \lineskip=\normlskip
                                         \parskip=\normpskip                                          \parskip=\normpskip
                                         \vskip -\parskip                                          \vskip -\parskip
 \def\Ecartouche{%  \def\Ecartouche{%
                                 \endgroup                                  \endgroup
                                 \kern3pt                                  \kern3pt
                         \egroup                          \egroup
                         \kern3pt\vrule                          \kern3pt\vrule
                         \hskip\rskip                          \hskip\rskip
                 \egroup                  \egroup
                 \cartbot                  \cartbot
         \egroup          \egroup
 \endgroup  \endgroup
 }}        }}
   
 \def\lisp{\aboveenvbreak  
 \begingroup\inENV % This group ends at the end of the @lisp body  % This macro is called at the beginning of all the @example variants,
 \hfuzz=12truept % Don't be fussy  % inside a group.
 % Make spaces be word-separators rather than space tokens.  \def\nonfillstart{%
 \sepspaces %    \aboveenvbreak
 % Single space lines    \inENV % This group ends at the end of the body
 \singlespace %    \hfuzz = 12pt % Don't be fussy
 % The following causes blank lines not to be ignored    \sepspaces % Make spaces be word-separators rather than space tokens.
 % by adding a space to the end of each line.    \singlespace
 \let\par=\lisppar    \let\par = \lisppar % don't ignore blank lines
 \def\Elisp{\endgroup\afterenvbreak}%    \obeylines % each line of input is a line of output
 \parskip=0pt    \parskip = 0pt
 % @cartouche defines \nonarrowing to inhibit narrowing    \parindent = 0pt
 % at next level down.    \emergencystretch = 0pt % don't try to avoid overfull boxes
 \ifx\nonarrowing\relax    % @cartouche defines \nonarrowing to inhibit narrowing
 \advance \leftskip by \lispnarrowing    % at next level down.
 \exdentamount=\lispnarrowing    \ifx\nonarrowing\relax
 \let\exdent=\nofillexdent      \advance \leftskip by \lispnarrowing
 \let\nonarrowing=\relax      \exdentamount=\lispnarrowing
 \fi      \let\exdent=\nofillexdent
 \parindent=0pt      \let\nonarrowing=\relax
 \obeyspaces \obeylines \tt \rawbackslash    \fi
 \def\next##1{}\next}  }
   
   % To ending an @example-like environment, we first end the paragraph
 \let\example=\lisp  % (via \afterenvbreak's vertical glue), and then the group.  That way we
 \def\Eexample{\Elisp}  % keep the zero \parskip that the environments set -- \parskip glue
   % will be inserted at the beginning of the next paragraph in the
 \let\smallexample=\lisp  % document, after the environment.
 \def\Esmallexample{\Elisp}  %
   \def\nonfillfinish{\afterenvbreak\endgroup}%
 % Macro for 9 pt. examples, necessary to print with 5" lines.  
 % From Pavel@xerox.  This is not really used unless the  % This macro is
 % @smallbook command is given.  \def\lisp{\begingroup
     \nonfillstart
 \def\smalllispx{\aboveenvbreak\begingroup\inENV    \let\Elisp = \nonfillfinish
 %                       This group ends at the end of the @lisp body    \tt
 \hfuzz=12truept % Don't be fussy    \rawbackslash % have \ input char produce \ char from current font
 % Make spaces be word-separators rather than space tokens.    \gobble
 \sepspaces %  }
 % Single space lines  
 \singlespace %  % Define the \E... control sequence only if we are inside the
 % The following causes blank lines not to be ignored  % environment, so the error checking in \end will work.
 % by adding a space to the end of each line.  %
 \let\par=\lisppar  % We must call \lisp last in the definition, since it reads the
 \def\Esmalllisp{\endgroup\afterenvbreak}%  % return following the @example (or whatever) command.
 %%%% Smaller baseline skip for small examples.  %
 \baselineskip 10pt  \def\example{\begingroup \def\Eexample{\nonfillfinish\endgroup}\lisp}
 \parskip=0pt  \def\smallexample{\begingroup \def\Esmallexample{\nonfillfinish\endgroup}\lisp}
 % @cartouche defines \nonarrowing to inhibit narrowing  \def\smalllisp{\begingroup \def\Esmalllisp{\nonfillfinish\endgroup}\lisp}
 % at next level down.  
 \ifx\nonarrowing\relax  % @smallexample and @smalllisp.  This is not used unless the @smallbook
 \advance \leftskip by \lispnarrowing  % command is given.  Originally contributed by Pavel@xerox.
 \exdentamount=\lispnarrowing  %
 \let\exdent=\nofillexdent  \def\smalllispx{\begingroup
 \let\nonarrowing=\relax    \nonfillstart
 \fi    \let\Esmalllisp = \nonfillfinish
 \parindent=0pt    \let\Esmallexample = \nonfillfinish
 \obeyspaces \obeylines \ninett \indexfonts \rawbackslash    %
 \def\next##1{}\next}    % Smaller fonts for small examples.
     \indexfonts \tt
     \rawbackslash % make \ output the \ character from the current font (tt)
     \gobble
   }
   
 % This is @display; same as @lisp except use roman font.  % This is @display; same as @lisp except use roman font.
   %
   \def\display{\begingroup
     \nonfillstart
     \let\Edisplay = \nonfillfinish
     \gobble
   }
   
 \def\display{\begingroup\inENV %This group ends at the end of the @display body  % This is @format; same as @display except don't narrow margins.
 \aboveenvbreak  %
 % Make spaces be word-separators rather than space tokens.  \def\format{\begingroup
 \sepspaces %    \let\nonarrowing = t
 % Single space lines    \nonfillstart
 \singlespace %    \let\Eformat = \nonfillfinish
 % The following causes blank lines not to be ignored    \gobble
 % by adding a space to the end of each line.  }
 \let\par=\lisppar  
 \def\Edisplay{\endgroup\afterenvbreak}%  
 \parskip=0pt  
 % @cartouche defines \nonarrowing to inhibit narrowing  
 % at next level down.  
 \ifx\nonarrowing\relax  
 \advance \leftskip by \lispnarrowing  
 \exdentamount=\lispnarrowing  
 \let\exdent=\nofillexdent  
 \let\nonarrowing=\relax  
 \fi  
 \parindent=0pt  
 \obeyspaces \obeylines  
 \def\next##1{}\next}  
   
 % This is @format; same as @lisp except use roman font and don't narrow margins  
   
 \def\format{\begingroup\inENV %This group ends at the end of the @format body  
 \aboveenvbreak  
 % Make spaces be word-separators rather than space tokens.  
 \sepspaces %  
 \singlespace %  
 % The following causes blank lines not to be ignored  
 % by adding a space to the end of each line.  
 \let\par=\lisppar  
 \def\Eformat{\endgroup\afterenvbreak}  
 \parskip=0pt \parindent=0pt  
 \obeyspaces \obeylines  
 \def\next##1{}\next}  
   
 % @flushleft and @flushright  
   
 \def\flushleft{%  
 \begingroup\inENV %This group ends at the end of the @format body  
 \aboveenvbreak  
 % Make spaces be word-separators rather than space tokens.  
 \sepspaces %  
 % The following causes blank lines not to be ignored  
 % by adding a space to the end of each line.  
 % This also causes @ to work when the directive name  
 % is terminated by end of line.  
 \let\par=\lisppar  
 \def\Eflushleft{\endgroup\afterenvbreak}%  
 \parskip=0pt \parindent=0pt  
 \obeyspaces \obeylines  
 \def\next##1{}\next}  
   
 \def\flushright{%  
 \begingroup\inENV %This group ends at the end of the @format body  
 \aboveenvbreak  
 % Make spaces be word-separators rather than space tokens.  
 \sepspaces %  
 % The following causes blank lines not to be ignored  
 % by adding a space to the end of each line.  
 % This also causes @ to work when the directive name  
 % is terminated by end of line.  
 \let\par=\lisppar  
 \def\Eflushright{\endgroup\afterenvbreak}%  
 \parskip=0pt \parindent=0pt  
 \advance \leftskip by 0pt plus 1fill  
 \obeyspaces \obeylines  
 \def\next##1{}\next}  
   
 % @quotation - narrow the margins.  % @flushleft (same as @format) and @flushright.
   %
   \def\flushleft{\begingroup
     \let\nonarrowing = t
     \nonfillstart
     \let\Eflushleft = \nonfillfinish
     \gobble
   }
   \def\flushright{\begingroup
     \let\nonarrowing = t
     \nonfillstart
     \let\Eflushright = \nonfillfinish
     \advance\leftskip by 0pt plus 1fill
     \gobble}
   
   % @quotation does normal linebreaking (hence we can't use \nonfillstart)
   % and narrows the margins.
   %
 \def\quotation{%  \def\quotation{%
 \begingroup\inENV %This group ends at the end of the @quotation body    \begingroup\inENV %This group ends at the end of the @quotation body
 {\parskip=0pt  % because we will skip by \parskip too, later    {\parskip=0pt \aboveenvbreak}% because \aboveenvbreak inserts \parskip
 \aboveenvbreak}%    \singlespace
 \singlespace    \parindent=0pt
 \parindent=0pt    % We have retained a nonzero parskip for the environment, since we're
 \def\Equotation{\par\endgroup\afterenvbreak}%    % doing normal filling. So to avoid extra space below the environment...
 % @cartouche defines \nonarrowing to inhibit narrowing    \def\Equotation{\parskip = 0pt \nonfillfinish}%
 % at next level down.    %
 \ifx\nonarrowing\relax    % @cartouche defines \nonarrowing to inhibit narrowing at next level down.
 \advance \leftskip by \lispnarrowing    \ifx\nonarrowing\relax
 \advance \rightskip by \lispnarrowing      \advance\leftskip by \lispnarrowing
 \exdentamount=\lispnarrowing      \advance\rightskip by \lispnarrowing
 \let\nonarrowing=\relax      \exdentamount = \lispnarrowing
 \fi}      \let\nonarrowing = \relax
     \fi
   }
   
 \message{defuns,}  \message{defuns,}
 % Define formatter for defuns  % Define formatter for defuns
Line 2502  July\or August\or September\or October\o Line 3598  July\or August\or September\or October\o
 \def\activeparens{%  \def\activeparens{%
 \catcode`\(=\active \catcode`\)=\active \catcode`\&=\active  \catcode`\(=\active \catcode`\)=\active \catcode`\&=\active
 \catcode`\[=\active \catcode`\]=\active}  \catcode`\[=\active \catcode`\]=\active}
   
   % Make control sequences which act like normal parenthesis chars.
   \let\lparen = ( \let\rparen = )
   
 {\activeparens % Now, smart parens don't turn on until &foo (see \amprm)  {\activeparens % Now, smart parens don't turn on until &foo (see \amprm)
   
   % Be sure that we always have a definition for `(', etc.  For example,
   % if the fn name has parens in it, \boldbrax will not be in effect yet,
   % so TeX would otherwise complain about undefined control sequence.
   \global\let(=\lparen \global\let)=\rparen
   \global\let[=\lbrack \global\let]=\rbrack
   
 \gdef\functionparens{\boldbrax\let&=\amprm\parencount=0 }  \gdef\functionparens{\boldbrax\let&=\amprm\parencount=0 }
 \gdef\boldbrax{\let(=\opnr\let)=\clnr\let[=\lbrb\let]=\rbrb}  \gdef\boldbrax{\let(=\opnr\let)=\clnr\let[=\lbrb\let]=\rbrb}
   % This is used to turn on special parens
   % but make & act ordinary (given that it's active).
   \gdef\boldbraxnoamp{\let(=\opnr\let)=\clnr\let[=\lbrb\let]=\rbrb\let&=\ampnr}
   
 % Definitions of (, ) and & used in args for functions.  % Definitions of (, ) and & used in args for functions.
 % This is the definition of ( outside of all parentheses.  % This is the definition of ( outside of all parentheses.
Line 2552  July\or August\or September\or October\o Line 3662  July\or August\or September\or October\o
 \advance \hsize by -\dimen2 \advance \hsize by -\dimen3  \advance \hsize by -\dimen2 \advance \hsize by -\dimen3
 \rlap{\rightline{{\rm #2}\hskip \deftypemargin}}}%  \rlap{\rightline{{\rm #2}\hskip \deftypemargin}}}%
 % Make all lines underfull and no complaints:  % Make all lines underfull and no complaints:
 \tolerance=10000 \hbadness=10000      \tolerance=10000 \hbadness=10000
 \advance\leftskip by -\defbodyindent  \advance\leftskip by -\defbodyindent
 \exdentamount=\defbodyindent  \exdentamount=\defbodyindent
 {\df #1}\enskip        % Generate function name  {\df #1}\enskip        % Generate function name
Line 2574  July\or August\or September\or October\o Line 3684  July\or August\or September\or October\o
 \advance\leftskip by \defbodyindent \advance \rightskip by \defbodyindent  \advance\leftskip by \defbodyindent \advance \rightskip by \defbodyindent
 \exdentamount=\defbodyindent  \exdentamount=\defbodyindent
 \begingroup %  \begingroup %
 \catcode 61=\active %  \catcode 61=\active % 61 is `='
 \obeylines\activeparens\spacesplit#3}  \obeylines\activeparens\spacesplit#3}
   
 \def\defmethparsebody #1#2#3#4 {\begingroup\inENV %  \def\defmethparsebody #1#2#3#4 {\begingroup\inENV %
Line 2617  July\or August\or September\or October\o Line 3727  July\or August\or September\or October\o
 \catcode 61=\active %  \catcode 61=\active %
 \obeylines\spacesplit#3}  \obeylines\spacesplit#3}
   
 \def\defvrparsebody #1#2#3#4 {\begingroup\inENV %  % This is used for \def{tp,vr}parsebody.  It could probably be used for
 \medbreak %  % some of the others, too, with some judicious conditionals.
 % Define the end token that this defining construct specifies  % 
 % so that it will exit this group.  \def\parsebodycommon#1#2#3{%
 \def#1{\endgraf\endgroup\medbreak}%    \begingroup\inENV %
 \def#2##1 {\begingroup\obeylines\spacesplit{#3{##1}}}%    \medbreak %
 \parindent=0in    % Define the end token that this defining construct specifies
 \advance\leftskip by \defbodyindent \advance \rightskip by \defbodyindent    % so that it will exit this group.
 \exdentamount=\defbodyindent    \def#1{\endgraf\endgroup\medbreak}%
 \begingroup\obeylines\spacesplit{#3{#4}}}    \def#2##1 {\begingroup\obeylines\spacesplit{#3{##1}}}%
     \parindent=0in
     \advance\leftskip by \defbodyindent \advance \rightskip by \defbodyindent
     \exdentamount=\defbodyindent
     \begingroup\obeylines
   }
   
   \def\defvrparsebody#1#2#3#4 {%
     \parsebodycommon{#1}{#2}{#3}%
     \spacesplit{#3{#4}}%
   }
   
   % This loses on `@deftp {Data Type} {struct termios}' -- it thinks the
   % type is just `struct', because we lose the braces in `{struct
   % termios}' when \spacesplit reads its undelimited argument.  Sigh.
   % \let\deftpparsebody=\defvrparsebody
   %
   % So, to get around this, we put \empty in with the type name.  That
   % way, TeX won't find exactly `{...}' as an undelimited argument, and
   % won't strip off the braces.
   %
   \def\deftpparsebody #1#2#3#4 {%
     \parsebodycommon{#1}{#2}{#3}%
     \spacesplit{\parsetpheaderline{#3{#4}}}\empty
   }
   
   % Fine, but then we have to eventually remove the \empty *and* the
   % braces (if any).  That's what this does, putting the result in \tptemp.
   % 
   \def\removeemptybraces\empty#1\relax{\def\tptemp{#1}}%
   
   % After \spacesplit has done its work, this is called -- #1 is the final
   % thing to call, #2 the type name (which starts with \empty), and #3
   % (which might be empty) the arguments.
   % 
   \def\parsetpheaderline#1#2#3{%
     \removeemptybraces#2\relax
     #1{\tptemp}{#3}%
   }%
   
 \def\defopvarparsebody #1#2#3#4#5 {\begingroup\inENV %  \def\defopvarparsebody #1#2#3#4#5 {\begingroup\inENV %
 \medbreak %  \medbreak %
Line 2675  July\or August\or September\or October\o Line 3823  July\or August\or September\or October\o
 \def\deftypefunargs #1{%  \def\deftypefunargs #1{%
 % Expand, preventing hyphenation at `-' chars.  % Expand, preventing hyphenation at `-' chars.
 % Note that groups don't affect changes in \hyphenchar.  % Note that groups don't affect changes in \hyphenchar.
 \functionparens  % Use \boldbraxnoamp, not \functionparens, so that & is not special.
 \code{#1}%  \boldbraxnoamp
   \tclose{#1}% avoid \code because of side effects on active chars
 \interlinepenalty=10000  \interlinepenalty=10000
 \advance\rightskip by 0pt plus 1fil  \advance\rightskip by 0pt plus 1fil
 \endgraf\penalty 10000\vskip -\parskip\penalty 10000%  \endgraf\penalty 10000\vskip -\parskip\penalty 10000%
Line 2712  July\or August\or September\or October\o Line 3861  July\or August\or September\or October\o
 % #1 is the data type, #2 the name, #3 the args.  % #1 is the data type, #2 the name, #3 the args.
 \def\deftypefunheaderx #1#2 #3\relax{%  \def\deftypefunheaderx #1#2 #3\relax{%
 \doind {fn}{\code{#2}}% Make entry in function index  \doind {fn}{\code{#2}}% Make entry in function index
 \begingroup\defname {\code{#1} #2}{Function}%  \begingroup\defname {\defheaderxcond#1\relax$$$#2}{Function}%
 \deftypefunargs {#3}\endgroup %  \deftypefunargs {#3}\endgroup %
 \catcode 61=\other % Turn off change made in \defparsebody  \catcode 61=\other % Turn off change made in \defparsebody
 }  }
Line 2721  July\or August\or September\or October\o Line 3870  July\or August\or September\or October\o
   
 \def\deftypefn{\defmethparsebody\Edeftypefn\deftypefnx\deftypefnheader}  \def\deftypefn{\defmethparsebody\Edeftypefn\deftypefnx\deftypefnheader}
   
   % \defheaderxcond#1\relax$$$
   % puts #1 in @code, followed by a space, but does nothing if #1 is null.
   \def\defheaderxcond#1#2$$${\ifx#1\relax\else\code{#1#2} \fi}
   
 % #1 is the classification.  #2 is the data type.  #3 is the name and args.  % #1 is the classification.  #2 is the data type.  #3 is the name and args.
 \def\deftypefnheader #1#2#3{\deftypefnheaderx{#1}{#2}#3 \relax}  \def\deftypefnheader #1#2#3{\deftypefnheaderx{#1}{#2}#3 \relax}
 % #1 is the classification, #2 the data type, #3 the name, #4 the args.  % #1 is the classification, #2 the data type, #3 the name, #4 the args.
 \def\deftypefnheaderx #1#2#3 #4\relax{%  \def\deftypefnheaderx #1#2#3 #4\relax{%
 \doind {fn}{\code{#3}}% Make entry in function index  \doind {fn}{\code{#3}}% Make entry in function index
 \begingroup\defname {\code{#2} #3}{#1}%  \begingroup
   \normalparens % notably, turn off `&' magic, which prevents
   %               at least some C++ text from working
   \defname {\defheaderxcond#2\relax$$$#3}{#1}%
 \deftypefunargs {#4}\endgroup %  \deftypefunargs {#4}\endgroup %
 \catcode 61=\other % Turn off change made in \defparsebody  \catcode 61=\other % Turn off change made in \defparsebody
 }  }
Line 2854  July\or August\or September\or October\o Line 4010  July\or August\or September\or October\o
 % #1 is the data type.  #2 is the name.  % #1 is the data type.  #2 is the name.
 \def\deftypevarheader #1#2{%  \def\deftypevarheader #1#2{%
 \doind {vr}{\code{#2}}% Make entry in variables index  \doind {vr}{\code{#2}}% Make entry in variables index
 \begingroup\defname {\code{#1} #2}{Variable}%  \begingroup\defname {\defheaderxcond#1\relax$$$#2}{Variable}%
 \interlinepenalty=10000  \interlinepenalty=10000
 \endgraf\penalty 10000\vskip -\parskip\penalty 10000  \endgraf\penalty 10000\vskip -\parskip\penalty 10000
 \endgroup}  \endgroup}
Line 2864  July\or August\or September\or October\o Line 4020  July\or August\or September\or October\o
 \def\deftypevr{\defvrparsebody\Edeftypevr\deftypevrx\deftypevrheader}  \def\deftypevr{\defvrparsebody\Edeftypevr\deftypevrx\deftypevrheader}
   
 \def\deftypevrheader #1#2#3{\doind {vr}{\code{#3}}%  \def\deftypevrheader #1#2#3{\doind {vr}{\code{#3}}%
 \begingroup\defname {\code{#2} #3}{#1}  \begingroup\defname {\defheaderxcond#2\relax$$$#3}{#1}
 \interlinepenalty=10000  \interlinepenalty=10000
 \endgraf\penalty 10000\vskip -\parskip\penalty 10000  \endgraf\penalty 10000\vskip -\parskip\penalty 10000
 \endgroup}  \endgroup}
Line 2885  July\or August\or September\or October\o Line 4041  July\or August\or September\or October\o
   
 % @deftp Class window height width ...  % @deftp Class window height width ...
   
 \def\deftp{\defvrparsebody\Edeftp\deftpx\deftpheader}  \def\deftp{\deftpparsebody\Edeftp\deftpx\deftpheader}
   
 \def\deftpheader #1#2#3{\doind {tp}{\code{#2}}%  \def\deftpheader #1#2#3{\doind {tp}{\code{#2}}%
 \begingroup\defname {#2}{#1}\deftpargs{#3}\endgroup}  \begingroup\defname {#2}{#1}\deftpargs{#3}\endgroup}
Line 2895  July\or August\or September\or October\o Line 4051  July\or August\or September\or October\o
   
 \def\deftpx #1 {\errmessage{@deftpx in invalid context}}  \def\deftpx #1 {\errmessage{@deftpx in invalid context}}
   
   
 \message{cross reference,}  \message{cross reference,}
 % Define cross-reference macros  % Define cross-reference macros
 \newwrite \auxfile  \newwrite \auxfile
Line 2902  July\or August\or September\or October\o Line 4059  July\or August\or September\or October\o
 \newif\ifhavexrefs  % True if xref values are known.  \newif\ifhavexrefs  % True if xref values are known.
 \newif\ifwarnedxrefs  % True if we warned once that they aren't known.  \newif\ifwarnedxrefs  % True if we warned once that they aren't known.
   
   % @inforef is simple.
   \def\inforef #1{\inforefzzz #1,,,,**}
   \def\inforefzzz #1,#2,#3,#4**{\putwordSee{} \putwordInfo{} \putwordfile{} \file{\ignorespaces #3{}},
     node \samp{\ignorespaces#1{}}}
   
 % \setref{foo} defines a cross-reference point named foo.  % \setref{foo} defines a cross-reference point named foo.
   
 \def\setref#1{%  \def\setref#1{%
 %\dosetq{#1-title}{Ytitle}%  \dosetq{#1-title}{Ytitle}%
 \dosetq{#1-pg}{Ypagenumber}%  \dosetq{#1-pg}{Ypagenumber}%
 \dosetq{#1-snt}{Ysectionnumberandtype}}  \dosetq{#1-snt}{Ysectionnumberandtype}}
   
 \def\unnumbsetref#1{%  \def\unnumbsetref#1{%
 %\dosetq{#1-title}{Ytitle}%  \dosetq{#1-title}{Ytitle}%
 \dosetq{#1-pg}{Ypagenumber}%  \dosetq{#1-pg}{Ypagenumber}%
 \dosetq{#1-snt}{Ynothing}}  \dosetq{#1-snt}{Ynothing}}
   
 \def\appendixsetref#1{%  \def\appendixsetref#1{%
 %\dosetq{#1-title}{Ytitle}%  \dosetq{#1-title}{Ytitle}%
 \dosetq{#1-pg}{Ypagenumber}%  \dosetq{#1-pg}{Ypagenumber}%
 \dosetq{#1-snt}{Yappendixletterandtype}}  \dosetq{#1-snt}{Yappendixletterandtype}}
   
Line 2924  July\or August\or September\or October\o Line 4086  July\or August\or September\or October\o
 % cross-reference, #3 the printed node name, #4 the name of the Info  % cross-reference, #3 the printed node name, #4 the name of the Info
 % file, #5 the name of the printed manual.  All but the node name can be  % file, #5 the name of the printed manual.  All but the node name can be
 % omitted.  % omitted.
 %   
 \def\pxref#1{see \xrefX[#1,,,,,,,]}  
 \def\xref#1{See \xrefX[#1,,,,,,,]}  
 \def\ref#1{\xrefX[#1,,,,,,,]}  
 \def\xrefX[#1,#2,#3,#4,#5,#6]{\begingroup%  
 \def\printedmanual{\ignorespaces #5}%  
 \def\printednodename{\ignorespaces #3}%  
 %  
 \setbox1=\hbox{\printedmanual}%  
 \setbox0=\hbox{\printednodename}%  
 \ifdim \wd0=0pt%  
 \def\printednodename{\ignorespaces #1}%  
 %%% Uncommment the following line to make the actual chapter or section title  
 %%% appear inside the square brackets.  
 %\def\printednodename{#1-title}%  
 \fi%  
 %  
 %  %
 % If we use \unhbox0 and \unhbox1 to print the node names, TeX does  \def\pxref#1{\putwordsee{} \xrefX[#1,,,,,,,]}
 % not insert empty discretionaries after hyphens, which means that it  \def\xref#1{\putwordSee{} \xrefX[#1,,,,,,,]}
 % will not find a line break at a hyphen in a node names.  Since some  \def\ref#1{\xrefX[#1,,,,,,,]}
 % manuals are best written with fairly long node names, containing  \def\xrefX[#1,#2,#3,#4,#5,#6]{\begingroup
 % hyphens, this is a loss.  Therefore, we simply give the text of    \def\printedmanual{\ignorespaces #5}%
 % the node name again, so it is as if TeX is seeing it for the first    \def\printednodename{\ignorespaces #3}%
 % time.    \setbox1=\hbox{\printedmanual}%
 \ifdim \wd1>0pt    \setbox0=\hbox{\printednodename}%
 section ``\printednodename'' in \cite{\printedmanual}%    \ifdim \wd0 = 0pt
 \else%      % No printed node name was explicitly given.
 \turnoffactive%      \expandafter\ifx\csname SETxref-automatic-section-title\endcsname\relax
 \refx{#1-snt}{} [\printednodename], page\tie\refx{#1-pg}{}%        % Use the node name inside the square brackets.
 \fi        \def\printednodename{\ignorespaces #1}%
       \else
         % Use the actual chapter/section title appear inside
         % the square brackets.  Use the real section title if we have it.
         \ifdim \wd1>0pt%
           % It is in another manual, so we don't have it.
           \def\printednodename{\ignorespaces #1}%
         \else
           \ifhavexrefs
             % We know the real title if we have the xref values.
             \def\printednodename{\refx{#1-title}{}}%
           \else
             % Otherwise just copy the Info node name.
             \def\printednodename{\ignorespaces #1}%
           \fi%
         \fi
       \fi
     \fi
     %
     % If we use \unhbox0 and \unhbox1 to print the node names, TeX does not
     % insert empty discretionaries after hyphens, which means that it will
     % not find a line break at a hyphen in a node names.  Since some manuals
     % are best written with fairly long node names, containing hyphens, this
     % is a loss.  Therefore, we give the text of the node name again, so it
     % is as if TeX is seeing it for the first time.
     \ifdim \wd1 > 0pt
       \putwordsection{} ``\printednodename'' in \cite{\printedmanual}%
     \else
       % _ (for example) has to be the character _ for the purposes of the
       % control sequence corresponding to the node, but it has to expand
       % into the usual \leavevmode...\vrule stuff for purposes of
       % printing. So we \turnoffactive for the \refx-snt, back on for the
       % printing, back off for the \refx-pg.
       {\turnoffactive \refx{#1-snt}{}}%
       \space [\printednodename],\space
       \turnoffactive \putwordpage\tie\refx{#1-pg}{}%
     \fi
 \endgroup}  \endgroup}
   
 % \dosetq is the interface for calls from other macros  % \dosetq is the interface for calls from other macros
   
 % Use \turnoffactive so that punctuation chars such as underscore  % Use \turnoffactive so that punctuation chars such as underscore
 % work in node names.  % work in node names.
 \def\dosetq #1#2{{\let\folio=0 \turnoffactive%  \def\dosetq #1#2{{\let\folio=0 \turnoffactive \auxhat%
 \edef\next{\write\auxfile{\internalsetq {#1}{#2}}}%  \edef\next{\write\auxfile{\internalsetq {#1}{#2}}}%
 \next}}  \next}}
   
Line 2975  section ``\printednodename'' in \cite{\p Line 4156  section ``\printednodename'' in \cite{\p
   
 \def\Ypagenumber{\folio}  \def\Ypagenumber{\folio}
   
 \def\Ytitle{\thischapter}  \def\Ytitle{\thissection}
   
 \def\Ynothing{}  \def\Ynothing{}
   
 \def\Ysectionnumberandtype{%  \def\Ysectionnumberandtype{%
 \ifnum\secno=0 Chapter\xreftie\the\chapno %  \ifnum\secno=0 \putwordChapter\xreftie\the\chapno %
 \else \ifnum \subsecno=0 Section\xreftie\the\chapno.\the\secno %  \else \ifnum \subsecno=0 \putwordSection\xreftie\the\chapno.\the\secno %
 \else \ifnum \subsubsecno=0 %  \else \ifnum \subsubsecno=0 %
 Section\xreftie\the\chapno.\the\secno.\the\subsecno %  \putwordSection\xreftie\the\chapno.\the\secno.\the\subsecno %
 \else %  \else %
 Section\xreftie\the\chapno.\the\secno.\the\subsecno.\the\subsubsecno %  \putwordSection\xreftie\the\chapno.\the\secno.\the\subsecno.\the\subsubsecno %
 \fi \fi \fi }  \fi \fi \fi }
   
 \def\Yappendixletterandtype{%  \def\Yappendixletterandtype{%
 \ifnum\secno=0 Appendix\xreftie'char\the\appendixno{}%  \ifnum\secno=0 \putwordAppendix\xreftie'char\the\appendixno{}%
 \else \ifnum \subsecno=0 Section\xreftie'char\the\appendixno.\the\secno %  \else \ifnum \subsecno=0 \putwordSection\xreftie'char\the\appendixno.\the\secno %
 \else \ifnum \subsubsecno=0 %  \else \ifnum \subsubsecno=0 %
 Section\xreftie'char\the\appendixno.\the\secno.\the\subsecno %  \putwordSection\xreftie'char\the\appendixno.\the\secno.\the\subsecno %
 \else %  \else %
 Section\xreftie'char\the\appendixno.\the\secno.\the\subsecno.\the\subsubsecno %  \putwordSection\xreftie'char\the\appendixno.\the\secno.\the\subsecno.\the\subsubsecno %
 \fi \fi \fi }  \fi \fi \fi }
   
 \gdef\xreftie{'tie}  \gdef\xreftie{'tie}
   
 % Use TeX 3.0's \inputlineno to get the line number, for better error  % Use TeX 3.0's \inputlineno to get the line number, for better error
 % messages, but if we're using an old version of TeX, don't do anything.  % messages, but if we're using an old version of TeX, don't do anything.
 %   %
 \ifx\inputlineno\thisisundefined  \ifx\inputlineno\thisisundefined
   \let\linenumber = \empty % Non-3.0.    \let\linenumber = \empty % Non-3.0.
 \else  \else
Line 3080  Section\xreftie'char\the\appendixno.\the Line 4261  Section\xreftie'char\the\appendixno.\the
 \catcode `\$=\other  \catcode `\$=\other
 \catcode `\#=\other  \catcode `\#=\other
 \catcode `\&=\other  \catcode `\&=\other
   % `\+ does not work, so use 43.
   \catcode 43=\other
   % Make the characters 128-255 be printing characters
   {%
     \count 1=128
     \def\loop{%
       \catcode\count 1=\other
       \advance\count 1 by 1
       \ifnum \count 1<256 \loop \fi
     }%
   }%
 % the aux file uses ' as the escape.  % the aux file uses ' as the escape.
 % Turn off \ as an escape so we do not lose on  % Turn off \ as an escape so we do not lose on
 % entries which were dumped with control sequences in their names.  % entries which were dumped with control sequences in their names.
Line 3089  Section\xreftie'char\the\appendixno.\the Line 4281  Section\xreftie'char\the\appendixno.\the
 \catcode `\{=1 \catcode `\}=2  \catcode `\{=1 \catcode `\}=2
 \catcode `\%=\other  \catcode `\%=\other
 \catcode `\'=0  \catcode `\'=0
   \catcode`\^=7 % to make ^^e4 etc usable in xref tags 
 \catcode `\\=\other  \catcode `\\=\other
 \openin 1 \jobname.aux  \openin 1 \jobname.aux
 \ifeof 1 \else \closein 1 \input \jobname.aux \global\havexrefstrue  \ifeof 1 \else \closein 1 \input \jobname.aux \global\havexrefstrue
   \global\warnedobstrue
 \fi  \fi
 % Open the new aux file.  Tex will close it automatically at exit.  % Open the new aux file.  Tex will close it automatically at exit.
 \openout \auxfile=\jobname.aux  \openout \auxfile=\jobname.aux
Line 3105  Section\xreftie'char\the\appendixno.\the Line 4299  Section\xreftie'char\the\appendixno.\the
 % The trailing space in the following definition for supereject is  % The trailing space in the following definition for supereject is
 % vital for proper filling; pages come out unaligned when you do a  % vital for proper filling; pages come out unaligned when you do a
 % pagealignmacro call if that space before the closing brace is  % pagealignmacro call if that space before the closing brace is
 % removed.  % removed. (Generally, numeric constants should always be followed by a
   % space to prevent strange expansion errors.)
 \def\supereject{\par\penalty -20000\footnoteno =0 }  \def\supereject{\par\penalty -20000\footnoteno =0 }
   
 % @footnotestyle is meaningful for info output only..  % @footnotestyle is meaningful for info output only..
Line 3114  Section\xreftie'char\the\appendixno.\the Line 4309  Section\xreftie'char\the\appendixno.\the
 \let\ptexfootnote=\footnote  \let\ptexfootnote=\footnote
   
 {\catcode `\@=11  {\catcode `\@=11
 \long\gdef\footnote #1{\global\advance \footnoteno by \@ne  %
 \unskip  % Auto-number footnotes.  Otherwise like plain.
 \edef\thisfootno{$^{\the\footnoteno}$}%  \gdef\footnote{%
 \let\@sf\empty    \global\advance\footnoteno by \@ne
 \ifhmode\edef\@sf{\spacefactor\the\spacefactor}\/\fi    \edef\thisfootno{$^{\the\footnoteno}$}%
 \thisfootno\@sf \footnotezzz{#1}}    %
 % \parsearg\footnotezzz}    % In case the footnote comes at the end of a sentence, preserve the
     % extra spacing after we do the footnote number.
 \long\gdef\footnotezzz #1{\insert\footins{    \let\@sf\empty
 \interlinepenalty\interfootnotelinepenalty    \ifhmode\edef\@sf{\spacefactor\the\spacefactor}\/\fi
 \splittopskip\ht\strutbox % top baseline for broken footnotes    %
 \splitmaxdepth\dp\strutbox \floatingpenalty\@MM    % Remove inadvertent blank space before typesetting the footnote number.
 \leftskip\z@skip \rightskip\z@skip \spaceskip\z@skip \xspaceskip\z@skip    \unskip
 \footstrut\parindent=\defaultparindent\hang\textindent{\thisfootno}#1\strut}}    \thisfootno\@sf
     \footnotezzz
   }%
   
   % Don't bother with the trickery in plain.tex to not require the
   % footnote text as a parameter.  Our footnotes don't need to be so general.
   %
   \long\gdef\footnotezzz#1{\insert\footins{%
     % We want to typeset this text as a normal paragraph, even if the
     % footnote reference occurs in (for example) a display environment.
     % So reset some parameters.
     \interlinepenalty\interfootnotelinepenalty
     \splittopskip\ht\strutbox % top baseline for broken footnotes
     \splitmaxdepth\dp\strutbox
     \floatingpenalty\@MM
     \leftskip\z@skip
     \rightskip\z@skip
     \spaceskip\z@skip
     \xspaceskip\z@skip
     \parindent\defaultparindent
     %
     % Hang the footnote text off the number.
     \hang
     \textindent{\thisfootno}%
     %
     % Don't crash into the line above the footnote text.  Since this
     % expands into a box, it must come within the paragraph, lest it
     % provide a place where TeX can split the footnote.
     \footstrut
     #1\strut}%
   }
   
 }%end \catcode `\@=11  }%end \catcode `\@=11
   
   % Set the baselineskip to #1, and the lineskip and strut size
   % correspondingly.  There is no deep meaning behind these magic numbers
   % used as factors; they just match (closely enough) what Knuth defined.
   %
   \def\lineskipfactor{.08333}
   \def\strutheightpercent{.70833}
   \def\strutdepthpercent {.29167}
   %
   \def\setleading#1{%
     \normalbaselineskip = #1\relax
     \normallineskip = \lineskipfactor\normalbaselineskip
     \normalbaselines
     \setbox\strutbox =\hbox{%
       \vrule width0pt height\strutheightpercent\baselineskip
                       depth \strutdepthpercent \baselineskip
     }%
   }
   
   % @| inserts a changebar to the left of the current line.  It should
   % surround any changed text.  This approach does *not* work if the
   % change spans more than two lines of output.  To handle that, we would
   % have adopt a much more difficult approach (putting marks into the main
   % vertical list for the beginning and end of each change).
   %
   \def\|{%
     % \vadjust can only be used in horizontal mode.
     \leavevmode
     %
     % Append this vertical mode material after the current line in the output.
     \vadjust{%
       % We want to insert a rule with the height and depth of the current
       % leading; that is exactly what \strutbox is supposed to record.
       \vskip-\baselineskip
       %
       % \vadjust-items are inserted at the left edge of the type.  So
       % the \llap here moves out into the left-hand margin.
       \llap{%
         %
         % For a thicker or thinner bar, change the `1pt'.
         \vrule height\baselineskip width1pt
         %
         % This is the space between the bar and the text.
         \hskip 12pt
       }%
     }%
   }
   
   % For a final copy, take out the rectangles
   % that mark overfull boxes (in case you have decided
   % that the text looks ok even though it passes the margin).
   %
   \def\finalout{\overfullrule=0pt}
   
   
 % End of control word definitions.  % End of control word definitions.
   
 \message{and turning on texinfo input format.}  \message{and turning on texinfo input format.}
Line 3146  Section\xreftie'char\the\appendixno.\the Line 4425  Section\xreftie'char\the\appendixno.\the
   
 % Set some numeric style parameters, for 8.5 x 11 format.  % Set some numeric style parameters, for 8.5 x 11 format.
   
 %\hsize = 6.5in  \hsize = 6in
   \hoffset = .25in
 \newdimen\defaultparindent \defaultparindent = 15pt  \newdimen\defaultparindent \defaultparindent = 15pt
 \parindent = \defaultparindent  \parindent = \defaultparindent
 \parskip 18pt plus 1pt  \parskip 3pt plus 2pt minus 1pt
 \baselineskip 15pt  \setleading{13.2pt}
 \advance\topskip by 1.2cm  \advance\topskip by 1.2cm
   
   \chapheadingskip = 15pt plus 4pt minus 2pt
   \secheadingskip = 12pt plus 3pt minus 2pt
   \subsecheadingskip = 9pt plus 2pt minus 2pt
   
 % Prevent underfull vbox error messages.  % Prevent underfull vbox error messages.
 \vbadness=10000  \vbadness=10000
   
Line 3164  Section\xreftie'char\the\appendixno.\the Line 4448  Section\xreftie'char\the\appendixno.\the
 % using an old version of TeX, don't do anything.  We want the amount of  % using an old version of TeX, don't do anything.  We want the amount of
 % stretch added to depend on the line length, hence the dependence on  % stretch added to depend on the line length, hence the dependence on
 % \hsize.  This makes it come to about 9pt for the 8.5x11 format.  % \hsize.  This makes it come to about 9pt for the 8.5x11 format.
 %   %
 \ifx\emergencystretch\thisisundefined \else  \ifx\emergencystretch\thisisundefined
     % Allow us to assign to \emergencystretch anyway.
     \def\emergencystretch{\dimen0}%
   \else
   \emergencystretch = \hsize    \emergencystretch = \hsize
   \divide\emergencystretch by 45    \divide\emergencystretch by 45
 \fi  \fi
   
 % Use @smallbook to reset parameters for 7x9.5 format  (or else 7x9.25)  % Use @smallbook to reset parameters for 7x9.5 format  (or else 7x9.25)
 \def\smallbook{  \def\smallbook{
 \global\lispnarrowing = 0.3in    \global\chapheadingskip = 15pt plus 4pt minus 2pt
 \global\baselineskip 12pt    \global\secheadingskip = 12pt plus 3pt minus 2pt
 \advance\topskip by -1cm    \global\subsecheadingskip = 9pt plus 2pt minus 2pt
 \global\parskip 3pt plus 1pt    %
 \global\hsize = 5in    \global\lispnarrowing = 0.3in
 \global\doublecolumnhsize=2.4in \global\doublecolumnvsize=15.0in    \setleading{12pt}
 \global\vsize=7.5in    \advance\topskip by -1cm
 \global\tolerance=700    \global\parskip 2pt plus 1pt
 \global\hfuzz=1pt    \global\hsize = 5in
 \global\contentsrightmargin=0pt    \global\vsize=7.5in
     \global\tolerance=700
 \global\pagewidth=\hsize    \global\hfuzz=1pt
 \global\pageheight=\vsize    \global\contentsrightmargin=0pt
     \global\deftypemargin=0pt
 \global\let\smalllisp=\smalllispx    \global\defbodyindent=.5cm
 \global\let\smallexample=\smalllispx    %
 \global\def\Esmallexample{\Esmalllisp}    \global\pagewidth=\hsize
     \global\pageheight=\vsize
     %
     \global\let\smalllisp=\smalllispx
     \global\let\smallexample=\smalllispx
     \global\def\Esmallexample{\Esmalllisp}
 }  }
   
 % Use @afourpaper to print on European A4 paper.  % Use @afourpaper to print on European A4 paper.
 \def\afourpaper{  \def\afourpaper{
 \global\tolerance=700  \global\tolerance=700
 \global\hfuzz=1pt  \global\hfuzz=1pt
 \global\baselineskip=12pt  \setleading{12pt}
 \global\parskip 15pt plus 1pt  \global\parskip 15pt plus 1pt
   
 \global\vsize= 53\baselineskip  \global\vsize= 53\baselineskip
Line 3206  Section\xreftie'char\the\appendixno.\the Line 4498  Section\xreftie'char\the\appendixno.\the
 \global\advance\outerhsize by 0.5in  \global\advance\outerhsize by 0.5in
 \global\outervsize=\vsize  \global\outervsize=\vsize
 \global\advance\outervsize by 0.6in  \global\advance\outervsize by 0.6in
 \global\doublecolumnhsize=\hsize  
 \global\divide\doublecolumnhsize by 2  
 \global\advance\doublecolumnhsize by -0.1in  
 \global\doublecolumnvsize=\vsize  
 \global\multiply\doublecolumnvsize by 2  
 \global\advance\doublecolumnvsize by 0.1in  
   
 \global\pagewidth=\hsize  \global\pagewidth=\hsize
 \global\pageheight=\vsize  \global\pageheight=\vsize
 }  }
   
 %% For a final copy, take out the rectangles  \bindingoffset=0pt
 %% that mark overfull boxes (in case you have decided  \normaloffset=\hoffset
 %% that the text looks ok even though it passes the margin).  \pagewidth=\hsize
 \def\finalout{\overfullrule=0pt}  \pageheight=\vsize
   
   % Allow control of the text dimensions.  Parameters in order: textheight;
   % textwidth; voffset; hoffset; binding offset; topskip.
   % All require a dimension;
   % header is additional; added length extends the bottom of the page.
   
   \def\changepagesizes#1#2#3#4#5#6{
    \global\vsize= #1
    \global\topskip= #6
    \advance\vsize by \topskip
    \global\voffset= #3
    \global\hsize= #2
    \global\outerhsize=\hsize
    \global\advance\outerhsize by 0.5in
    \global\outervsize=\vsize
    \global\advance\outervsize by 0.6in
    \global\pagewidth=\hsize
    \global\pageheight=\vsize
    \global\normaloffset= #4
    \global\bindingoffset= #5}
   
   % A specific text layout, 24x15cm overall, intended for A4 paper.  Top margin
   % 29mm, hence bottom margin 28mm, nominal side margin 3cm.
   \def\afourlatex
           {\global\tolerance=700
           \global\hfuzz=1pt
           \setleading{12pt}
           \global\parskip 15pt plus 1pt
           \advance\baselineskip by 1.6pt
           \changepagesizes{237mm}{150mm}{3.6mm}{3.6mm}{3mm}{7mm}
           }
   
   % Use @afourwide to print on European A4 paper in wide format.
   \def\afourwide{\afourpaper
   \changepagesizes{9.5in}{6.5in}{\hoffset}{\normaloffset}{\bindingoffset}{7mm}}
   
 % Define macros to output various characters with catcode for normal text.  % Define macros to output various characters with catcode for normal text.
 \catcode`\"=\other  \catcode`\"=\other
Line 3248  Section\xreftie'char\the\appendixno.\the Line 4569  Section\xreftie'char\the\appendixno.\the
 % otherwise.  Since all the Computer Modern typewriter fonts have zero  % otherwise.  Since all the Computer Modern typewriter fonts have zero
 % interword stretch (and shrink), and it is reasonable to expect all  % interword stretch (and shrink), and it is reasonable to expect all
 % typewriter fonts to have this, we can check that font parameter.  % typewriter fonts to have this, we can check that font parameter.
 %   %
 \def\ifusingtt#1#2{\ifdim \fontdimen3\the\font=0pt #1\else #2\fi}  \def\ifusingtt#1#2{\ifdim \fontdimen3\the\font=0pt #1\else #2\fi}
   
 % Turn off all special characters except @  % Turn off all special characters except @
Line 3263  Section\xreftie'char\the\appendixno.\the Line 4584  Section\xreftie'char\the\appendixno.\the
 \def~{{\tt \char '176}}  \def~{{\tt \char '176}}
 \chardef\hat=`\^  \chardef\hat=`\^
 \catcode`\^=\active  \catcode`\^=\active
   \def\auxhat{\def^{'hat}}
 \def^{{\tt \hat}}  \def^{{\tt \hat}}
   
 \catcode`\_=\active  \catcode`\_=\active
 \def_{\ifusingtt\normalunderscore\_}  \def_{\ifusingtt\normalunderscore\_}
 % Subroutine for the previous macro.  % Subroutine for the previous macro.
 \def\_{\lvvmode \kern.06em \vbox{\hrule width.3em height.1ex}}  \def\_{\leavevmode \kern.06em \vbox{\hrule width.3em height.1ex}}
   
 % \lvvmode is equivalent in function to \leavevmode.  
 % Using \leavevmode runs into trouble when written out to  
 % an index file due to the expansion of \leavevmode into ``\unhbox  
 % \voidb@x'' ---which looks to TeX like ``\unhbox \voidb\x'' due to our  
 % magic tricks with @.  
 \def\lvvmode{\vbox to 0pt{}}  
   
 \catcode`\|=\active  \catcode`\|=\active
 \def|{{\tt \char '174}}  \def|{{\tt \char '174}}
Line 3290  Section\xreftie'char\the\appendixno.\the Line 4605  Section\xreftie'char\the\appendixno.\the
 %\catcode 27=\active  %\catcode 27=\active
 %\def^^[{$\diamondsuit$}  %\def^^[{$\diamondsuit$}
   
 % Used sometimes to turn off (effectively) the active characters  
 % even after parsing them.  
 \def\turnoffactive{\let"=\normaldoublequote  
 \let~=\normaltilde  
 \let^=\normalcaret  
 \let_=\normalunderscore  
 \let|=\normalverticalbar  
 \let<=\normalless  
 \let>=\normalgreater  
 \let+=\normalplus}  
   
 % Set up an active definition for =, but don't enable it most of the time.  % Set up an active definition for =, but don't enable it most of the time.
 {\catcode`\==\active  {\catcode`\==\active
 \global\def={{\tt \char 61}}}  \global\def={{\tt \char 61}}}
   
   \catcode`+=\active
   \catcode`\_=\active
   
   % If a .fmt file is being used, characters that might appear in a file
   % name cannot be active until we have parsed the command line.
   % So turn them off again, and have \everyjob (or @setfilename) turn them on.
   % \otherifyactive is called near the end of this file.
   \def\otherifyactive{\catcode`+=\other \catcode`\_=\other}
   
 \catcode`\@=0  \catcode`\@=0
   
 % \rawbackslashxx output one backslash character in current font  % \rawbackslashxx output one backslash character in current font
Line 3325  Section\xreftie'char\the\appendixno.\the Line 4638  Section\xreftie'char\the\appendixno.\the
 % \catcode 17=0   % Define control-q  % \catcode 17=0   % Define control-q
 \catcode`\\=\active  \catcode`\\=\active
   
   % Used sometimes to turn off (effectively) the active characters
   % even after parsing them.
   @def@turnoffactive{@let"=@normaldoublequote
   @let\=@realbackslash
   @let~=@normaltilde
   @let^=@normalcaret
   @let_=@normalunderscore
   @let|=@normalverticalbar
   @let<=@normalless
   @let>=@normalgreater
   @let+=@normalplus}
   
   @def@normalturnoffactive{@let"=@normaldoublequote
   @let\=@normalbackslash
   @let~=@normaltilde
   @let^=@normalcaret
   @let_=@normalunderscore
   @let|=@normalverticalbar
   @let<=@normalless
   @let>=@normalgreater
   @let+=@normalplus}
   
   % Make _ and + \other characters, temporarily.
   % This is canceled by @fixbackslash.
   @otherifyactive
   
 % If a .fmt file is being used, we don't want the `\input texinfo' to show up.  % If a .fmt file is being used, we don't want the `\input texinfo' to show up.
 % That is what \eatinput is for; after that, the `\' should revert to printing   % That is what \eatinput is for; after that, the `\' should revert to printing
 % a backslash.  % a backslash.
 %  %
 @gdef@eatinput input texinfo{@fixbackslash}  @gdef@eatinput input texinfo{@fixbackslash}
 @global@let\ = @eatinput  @global@let\ = @eatinput
   
 % On the other hand, perhaps the file did not have a `\input texinfo'. Then  % On the other hand, perhaps the file did not have a `\input texinfo'. Then
 % the first `\{ in the file would cause an error. This macro tries to fix   % the first `\{ in the file would cause an error. This macro tries to fix
 % that, assuming it is called before the first `\' could plausibly occur.  % that, assuming it is called before the first `\' could plausibly occur.
 %   % Also back turn on active characters that might appear in the input
 @gdef@fixbackslash{@ifx\@eatinput @let\ = @normalbackslash @fi}  % file name, in case not using a pre-dumped format.
   %
   @gdef@fixbackslash{@ifx\@eatinput @let\ = @normalbackslash @fi
     @catcode`+=@active @catcode`@_=@active}
   
 %% These look ok in all fonts, so just make them not special.  The @rm below  %% These look ok in all fonts, so just make them not special.  The @rm below
 %% makes sure that the current font starts out as the newly loaded cmr10  %% makes sure that the current font starts out as the newly loaded cmr10
Removed from v.1.1  
changed lines
  Added in v.1.4

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