%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
%published by the Free Software Foundation; either version 1, or (at
%your option) any later version.
%This texinfo.tex file is distributed in the hope that it will be
%useful, but WITHOUT ANY WARRANTY; without even the implied warranty
%of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
%General Public License for more details.
%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
%to the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139,
%USA.
%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
%what you give them. Help stamp out software-hoarding!
%************************************************
% Patch for ASCII Jtexinfo by Y. Kusumi@Panasonic
% Original patch for NTT Jtexinfo by S. Tomura
\def\ASCJtexinfoversion{1.01}
\message{ with ASCII jtexinfo extension [Version \ASCJtexinfoversion]:}
%************************************************
% Print the version number if in a .fmt file.
\everyjob{\message{[Texinfo version \texinfoversion]}\message{}}
% Save some parts of plain tex whose names we will redefine.
% Margin to add to right of even pages, to left of odd pages.
\newdimen \bindingoffset \bindingoffset=0pt
\newdimen \normaloffset \normaloffset=\hoffset
\newdimen\pagewidth \newdimen\pageheight
\pagewidth=\hsize \pageheight=\vsize
%---------------------Begin change-----------------------
%
% Dimensions to add cropmarks at corners Added by P. A. MacKay, 12 Nov. 1986
%
\newdimen\cornerlong \newdimen\cornerthick
\newdimen \topandbottommargin
\newdimen \outerhsize \newdimen \outervsize
\cornerlong=1pc\cornerthick=.3pt % These set size of cropmarks
\outerhsize=7in
\outervsize=9.5in
\topandbottommargin=.75in
%
%---------------------End change-----------------------
% \onepageout takes a vbox as an argument. Note that \pagecontents
% does insertions itself, but you have to call it yourself.
\chardef\PAGE=255 \output={\onepageout{\pagecontents\PAGE}}
\def\onepageout#1{\hoffset=\normaloffset
\ifodd\pageno \advance\hoffset by \bindingoffset
\else \advance\hoffset by -\bindingoffset\fi
{\escapechar=`\\\relax % makes sure backslash is used in output files.
\shipout\vbox{{\let\hsize=\pagewidth \makeheadline} \pagebody{#1}%
{\let\hsize=\pagewidth \makefootline}}}%
\advancepageno \ifnum\outputpenalty>-20000 \else\dosupereject\fi}
% Here is a modification of the main output routine for Near East Publications
% This provides right-angle cropmarks at all four corners.
% The contents of the page are centerlined into the cropmarks,
% and any desired binding offset is added as an \hskip on either
% site of the centerlined box. (P. A. MacKay, 12 November, 1986)
%
\def\croppageout#1{\hoffset=0pt % make sure this doesn't mess things up
\shipout
\vbox to \outervsize{\hsize=\outerhsize
\vbox{\line{\ewtop\hfill\ewtop}}
\nointerlineskip
\line{\vbox{\moveleft\cornerthick\nstop}
\hfill
\vbox{\moveright\cornerthick\nstop}}
\vskip \topandbottommargin
\centerline{\ifodd\pageno\hskip\bindingoffset\fi
\vbox{
{\let\hsize=\pagewidth \makeheadline}
\pagebody{#1}
{\let\hsize=\pagewidth \makefootline}}
\ifodd\pageno\else\hskip\bindingoffset\fi}
\vskip \topandbottommargin plus1fill minus1fill
\boxmaxdepth\cornerthick
\line{\vbox{\moveleft\cornerthick\nsbot}
\hfill
\vbox{\moveright\cornerthick\nsbot}}
\nointerlineskip
\vbox{\line{\ewbot\hfill\ewbot}}
}
\advancepageno
\ifnum\outputpenalty>-20000 \else\dosupereject\fi}
%
% Do @cropmarks to get crop marks
\def\cropmarks{\let\onepageout=\croppageout }
%
% Here are the rules for the cropmarks. Note that they are
% offset so that the space between them is truly \outerhsize or \outervsize
% (P. A. MacKay, 12 November, 1986)
%
\def\ewtop{\vrule height\cornerthick depth0pt width\cornerlong}
\def\nstop{\vbox
{\hrule height\cornerthick depth\cornerlong width\cornerthick}}
\def\ewbot{\vrule height0pt depth\cornerthick width\cornerlong}
\def\nsbot{\vbox
{\hrule height\cornerlong depth\cornerthick width\cornerthick}}
% Parse an argument, then pass it to #1.
% The argument can be delimited with [...] or with "..." or braces
% or it can be a whole line.
% #1 should be a macro which expects
% an ordinary undelimited TeX argument.
%% These are used to keep @begin/@end levels from running away
%% Call \inENV within environments (after a \begingroup)
\newif\ifENV \ENVfalse \def\inENV{\ifENV\relax\else\ENVtrue\fi}
\def\ENVcheck{%
\ifENV\errmessage{Still within an environment. Type Return to continue.}
\endgroup\fi} % This is not perfect, but it should reduce lossage
% @begin foo is the same as @foo, for now.
\newhelp\EMsimple{Type <Return> to continue}
% @math means output in math mode.
% We don't use $'s directly in the definition of \math because control
% sequences like \math are expanded when the toc file is written. Then,
% 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
% control sequence to switch into and out of math mode.
%
% This isn't quite enough for @math to work properly in indices, but it
% seems unlikely it will ever be needed there.
%
\let\implicitmath = $
\def\math#1{\implicitmath #1\implicitmath}
% @setfilename is done at the beginning of every texinfo file.
% 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.
\def\setfilename{%
\readauxfile
\opencontents
\openindices
\fixbackslash % Turn off hack to swallow `\input texinfo'.
\global\let\setfilename=\comment % Ignore extra @setfilename cmds.
\comment % Ignore the actual filename.
}
%% Try out Computer Modern fonts at \magstephalf
\font\tenrm=cmr10 scaled \magstephalf
\font\tentt=cmtt10 scaled \magstephalf
% Instead of cmb10, you many want to use cmbx10.
% cmbx10 is a prettier font on its own, but cmb10
% looks better when embedded in a line with cmr10.
\font\tenbf=cmb10 scaled \magstephalf
\font\tenit=cmti10 scaled \magstephalf
\font\tensl=cmsl10 scaled \magstephalf
\font\tensf=cmss10 scaled \magstephalf
%**
\font\tenmin=min10 scaled \magstephalf
\font\tengt=goth10 scaled \magstephalf
%**
% Fonts for @defun, etc.
\font\defbf=cmbx10 scaled \magstep1 %was 1314
\font\deftt=cmtt10 scaled \magstep1
%**
\font\defgt=goth10 scaled \magstep1
\def\df{\let\tt=\deftt \defbf\defgt}
% Font for title
% There seems to have been a confusion: two definitions of this font.
% It is not clear why, or which one is better.
\font\titlerm = cmbx10 scaled \magstep4
\font\titlemc = goth10 scaled \magstep4
% Fonts for indices and small examples.
% We actually use the slanted font rather than the italic,
% because texinfo normally uses the slanted fonts for that.
\font\ninett=cmtt9
\font\indit=cmsl9
\font\indrm=cmr9
\font\indmin=min9
\font\indgt=goth9
\let\indtt=\ninett
\def\indbf{\indrm} \def\indsl{\indit}
\def\indexfonts{\let\it=\indit \let\sl=\indsl \let\bf=\indbf \let\rm=\indrm
\let\tt=\indtt \let\mc=\indmin \let\gt=\indgt}
\font\ssecrm=cmbx10 scaled \magstep1 % This size an fontlooked bad.
\font\ssecit=cmti10 scaled \magstep1 % The letters were too crowded.
\font\ssecsl=cmsl10 scaled \magstep1
\font\ssectt=cmtt10 scaled \magstep1
\font\ssecsf=cmss10 scaled \magstep1
\let\ssecbf=\ssecrm
%**
\font\ssecmin=min10 scaled \magstep1
\let\ssecgt=\ssecmin
%**
%\font\ssecrm=cmb10 scaled 1315 % Note the use of cmb rather than cmbx.
%\font\ssecit=cmti10 scaled 1315 % Also, the size is a little larger than
%\font\ssecsl=cmsl10 scaled 1315 % being scaled magstep1.
%\font\ssectt=cmtt10 scaled 1315
%\font\ssecsf=cmss10 scaled 1315
% Count depth in font-changes, for error checks
\newcount\fontdepth \fontdepth=0
% Font for table of contents.
\font\truesecrm=cmr12
%% Add scribe-like font environments, plus @l for inline lisp (usually sans
%% serif) and @ii for TeX italic
% \smartitalic{ARG} outputs arg in italics, followed by an italic correction
% unless the following character is such as not to need one.
\def\smartitalicx{\ifx\next,\else\ifx\next-\else\ifx\next.\else\/\fi\fi\fi}
\def\smartitalic#1{{\sl #1}\futurelet\next\smartitalicx}
% @code is a modification of @t,
% which makes spaces the same size as normal in the surrounding text.
\newdimen\tclosesave
\newdimen\tcloserm
\def\tclose#1{{\rm\mc \tcloserm=\fontdimen2\font \tt \tclosesave=\fontdimen2\font
\fontdimen2\font=\tcloserm
\def\ {{\fontdimen2\font=\tclosesave{} }}%
\rawbackslash \frenchspacing #1\fontdimen2\font=\tclosesave}\null}
\let\code=\tclose
%\let\exp=\tclose %Was temporary
% @kbd is like @code, except that if the argument is just one @key command,
% then @kbd has no effect.
\def\titlepage{\begingroup \parindent=0pt \textfonts
\let\subtitlerm=\tenrm
%**
\let\subtitlemc=\tenmin
%**
% I deinstalled the following change because \cmr12 is undefined.
% This change was not in the ChangeLog anyway. --rms.
% \let\subtitlerm=\cmr12
% \def\subtitlefont{\subtitlerm \normalbaselineskip = 13pt \normalbaselines}%
%**
\def\subtitlefont{\subtitlerm \subtitlemc
\normalbaselineskip = 13pt \normalbaselines}%
%**
%
\font\authorrm = cmbx10 scaled \magstep2
%**
\font\authormc = goth10 scaled \magstep2
%**
% \def\authorfont{\authorrm \normalbaselineskip = 16pt \normalbaselines}%
%**
\def\authorfont{\authorrm\authormc
\normalbaselineskip = 16pt \normalbaselines}%
%**
%
% Leave some space at the very top of the page.
\vglue\titlepagetopglue
%
% Now you can print the title using @title.
\def\title{\parsearg\titlezzz}%
\def\titlezzz##1{\leftline{\titlefont{##1}}
% print a rule at the page bottom also.
\finishedtitlepagefalse
\vskip4pt \hrule height 4pt \vskip4pt}%
% No rule at page bottom unless we print one at the top with @title.
\finishedtitlepagetrue
%
% Now you can put text using @subtitle.
\def\subtitle{\parsearg\subtitlezzz}%
\def\subtitlezzz##1{{\subtitlefont \rightline{##1}}}%
%
% @author should come last, but may come many times.
\def\author{\parsearg\authorzzz}%
\def\authorzzz##1{\ifseenauthor\else\vskip 0pt plus 1filll\seenauthortrue\fi
{\authorfont \leftline{##1}}}%
%
% 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.
\let\oldpage = \page
\def\page{%
\iffinishedtitlepage\else
\finishtitlepage
\fi
\oldpage
\let\page = \oldpage
\hbox{}}%
% \def\page{\oldpage \hbox{}}
}
\newtoks \evenheadline % Token sequence for heading line of even pages
\newtoks \oddheadline % Token sequence for heading line of odd pages
\newtoks \evenfootline % Token sequence for footing line of even pages
\newtoks \oddfootline % Token sequence for footing line of odd pages
% Now make Tex use those variables
\headline={{\textfonts\rm\mc \ifodd\pageno \the\oddheadline \else \the\evenheadline \fi}}
\footline={{\textfonts\rm\mc \ifodd\pageno \the\oddfootline \else \the\evenfootline \fi}}
% Commands to set those variables.
% For example, this is what @headings on does
% @evenheading @thistitle|@thispage|@thischapter
% @oddheading @thischapter|@thispage|@thistitle
% @evenfooting @thisfile||
% @oddfooting ||@thisfile
\gdef\everyfootingxxx #1{\everyfootingyyy #1@|@|@|@|\finish}
\gdef\everyfootingyyy #1@|#2@|#3@|#4\finish{%
\global\evenfootline={\rlap{\centerline{#2}}\line{#1\hfil#3}}
\global\oddfootline={\rlap{\centerline{#2}}\line{#1\hfil#3}}}
%
}% unbind the catcode of @.
% @headings double turns headings on for double-sided printing.
% @headings single turns headings on for single-sided printing.
% @headings off turns them off.
% @headings on same as @headings double, retained for compatibility.
% By default, they are off.
\def\headings #1 {\csname HEADINGS#1\endcsname}
\def\HEADINGSoff{
\global\evenheadline={\hfil} \global\evenfootline={\hfil}
\global\oddheadline={\hfil} \global\oddfootline={\hfil}}
\HEADINGSoff
% When we turn headings on, set the page number to 1.
% For double-sided printing, put current file name in lower left corner,
% chapter name on inside top of right hand pages, document
% title on inside top of left hand pages, and page numbers on outside top
% edge of all pages.
\def\HEADINGSdouble{
%\pagealignmacro
\global\pageno=1
\global\evenfootline={\hfil}
\global\oddfootline={\hfil}
\global\evenheadline={\line{\folio\hfil\thistitle}}
\global\oddheadline={\line{\thischapter\hfil\folio}}
}
% For single-sided printing, chapter title goes across top left of page,
% page number on top right.
\def\HEADINGSsingle{
%\pagealignmacro
\global\pageno=1
\global\evenfootline={\hfil}
\global\oddfootline={\hfil}
\global\evenheadline={\line{\thischapter\hfil\folio}}
\global\oddheadline={\line{\thischapter\hfil\folio}}
}
\def\HEADINGSon{\HEADINGSdouble}
% Subroutines used in generating headings
% Produces Day Month Year style of output.
\def\today{\number\day\space
\ifcase\month\or
January\or February\or March\or April\or May\or June\or
July\or August\or September\or October\or November\or December\fi
\space\number\year}
% Use this if you want the Month Day, Year style of output.
%\def\today{\ifcase\month\or
%January\or February\or March\or April\or May\or June\or
%July\or August\or September\or October\or November\or December\fi
%\space\number\day, \number\year}
% @settitle line... specifies the title of the document, for headings
% It generates no output of its own
% default indentation of table text
\newdimen\tableindent \tableindent=.8in
% default indentation of @itemize and @enumerate text
\newdimen\itemindent \itemindent=.3in
% margin between end of table item and start of table text.
\newdimen\itemmargin \itemmargin=.1in
% used internally for \itemindent minus \itemmargin
\newdimen\itemmax
% Note @table and @ftable define @item, @itemx, etc., with these defs.
% They also define \itemindex
% to index the item name in whatever manner is desired (perhaps none).
\def\itemzzz #1{\begingroup %
\advance \hsize by -\rightskip %
\advance \hsize by -\leftskip %
\setbox0=\hbox{\itemfont{#1}}%
\itemindex{#1}%
\parskip=0in %
\noindent %
\ifdim \wd0>\itemmax %
\vadjust{\penalty 10000}%
\hbox to \hsize{\hskip -\tableindent\box0\hss}\ %
\else %
\hbox to 0pt{\hskip -\tableindent\box0\hss}%
\fi %
\endgroup %
}
\def\item{\errmessage{@item while not in a table}}
\def\itemx{\errmessage{@itemx while not in a table}}
\def\kitem{\errmessage{@kitem while not in a table}}
\def\kitemx{\errmessage{@kitemx while not in a table}}
\def\xitem{\errmessage{@xitem while not in a table}}
\def\xitemx{\errmessage{@xitemx while not in a table}}
%% Contains a kludge to get @end[description] to work
\def\description{\tablez{\dontindex}{1}{}{}{}{}}
% Set sfcode to normal for the chars that usually have another value.
% These are `.?!:;,'
\def\frenchspacing{\sfcode46=1000 \sfcode63=1000 \sfcode33=1000
\sfcode58=1000 \sfcode59=1000 \sfcode44=1000 }
\def\itemizeitem{%
\advance\itemno by 1
{\let\par=\endgraf \smallbreak}%
\ifhmode \errmessage{\in hmode at itemizeitem}\fi
{\parskip=0in \hskip 0pt
\hbox to 0pt{\hss \itemcontents\hskip \itemmargin}%
\vadjust{\penalty 300}}%
\flushcr}
\message{indexing,}
% Index generation facilities
% Define \newwrite to be identical to plain tex's \newwrite
% except not \outer, so it can be used within \newindex.
{\catcode`\@=11
\gdef\newwrite{\alloc@7\write\chardef\sixt@@n}}
% \newindex {foo} defines an index named foo.
% It automatically defines \fooindex such that
% \fooindex ...rest of line... puts an entry in the index foo.
% 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 name of an index should be no more than 2 characters long
% for the sake of vms.
\def\newindex #1{
\expandafter\newwrite \csname#1indfile\endcsname% Define number for output file
\openout \csname#1indfile\endcsname \jobname.#1 % Open the file
\expandafter\xdef\csname#1index\endcsname{% % Define \xxxindex
\noexpand\doindex {#1}}
}
% @defindex foo == \newindex{foo}
\def\defindex{\parsearg\newindex}
% Define @defcodeindex, like @defindex except put all entries in @code.
\def\newcodeindex #1{
\expandafter\newwrite \csname#1indfile\endcsname% Define number for output file
\openout \csname#1indfile\endcsname \jobname.#1 % Open the file
\expandafter\xdef\csname#1index\endcsname{% % Define \xxxindex
\noexpand\docodeindex {#1}}
}
\def\defcodeindex{\parsearg\newcodeindex}
% @synindex foo bar makes index foo feed into index bar.
% Do this instead of @defindex foo if you don't want it as a separate index.
\def\synindex #1 #2 {%
\expandafter\let\expandafter\synindexfoo\expandafter=\csname#2indfile\endcsname
\expandafter\let\csname#1indfile\endcsname=\synindexfoo
\expandafter\xdef\csname#1index\endcsname{% % Define \xxxindex
\noexpand\doindex {#2}}%
}
% @syncodeindex foo bar similar, but put all entries made for index foo
% inside @code.
\def\syncodeindex #1 #2 {%
\expandafter\let\expandafter\synindexfoo\expandafter=\csname#2indfile\endcsname
\expandafter\let\csname#1indfile\endcsname=\synindexfoo
\expandafter\xdef\csname#1index\endcsname{% % Define \xxxindex
\noexpand\docodeindex {#2}}%
}
% Define \doindex, the driver for all \fooindex macros.
% Argument #1 is generated by the calling \fooindex macro,
% and it is "foo", the name of the index.
% \doindex just uses \parsearg; it calls \doind for the actual work.
% This is because \doind is more useful to call from other macros.
% There is also \dosubind {index}{topic}{subtopic}
% which makes an entry in a two-level index such as the operation index.
%*********************************************
%*** For the compat'y with texinfo.tex.ntt
%*** jtexinfo patch by S.Tomura 89-Dec-7
\def\Jempty{}
\def\singleindexer #1{\singleindexerB#1[]\singleindexerA}
\def\singleindexerB#1[#2]{\edef\Jone{#1}\edef\Jtwo{#2}%
\ifx\Jempty\Jtwo\let\Jnext=\relax\let\singleindexerA=\singleindexerD%
\else\let\Jnext=\singleindexerC\let\singleindexerA=\singleindexerE\fi%
\Jnext}
\def\singleindexerC#1[]{}
\def\singleindexerD{\doind{\indexname}{\Jone}}
\def\singleindexerE{\Jdoind{\indexname}{\Jone}{\Jtwo}}
%**** end of patch
%*********************************************
% like the previous two, but they put @code around the argument.
\def\docodeindex#1{\edef\indexname{#1}\parsearg\singlecodeindexer}
\def\singlecodeindexer #1{\doind{\indexname}{\code{#1}}}
% \indexnofonts no-ops all font-change commands.
% This is used when outputting the strings to sort the index by.
\def\indexdummyfont#1{#1}
\def\indexdummytex{TeX}
\def\indexdummydots{...}
\def\indexnofonts{%
\let\w=\indexdummyfont
\let\t=\indexdummyfont
\let\r=\indexdummyfont
\let\i=\indexdummyfont
\let\b=\indexdummyfont
\let\emph=\indexdummyfont
\let\strong=\indexdummyfont
\let\cite=\indexdummyfont
\let\sc=\indexdummyfont
%Don't no-op \tt, since it isn't a user-level command
% and is used in the definitions of the actuve chars like <, >, |...
%\let\tt=\indexdummyfont
\let\tclose=\indexdummyfont
\let\code=\indexdummyfont
\let\file=\indexdummyfont
\let\samp=\indexdummyfont
\let\kbd=\indexdummyfont
\let\key=\indexdummyfont
\let\var=\indexdummyfont
\let\TeX=\indexdummytex
\let\dots=\indexdummydots
}
% To define \realbackslash, we must make \ not be an escape.
% We must first make another character (@) an escape
% so we do not become unable to do a definition.
\let\indexbackslash=0 %overridden during \printindex.
\def\doind #1#2{%
{\indexdummies % Must do this here, since \bf, etc expand at this stage
\count10=\lastpenalty %
\escapechar=`\\%
{\let\folio=0% Expand all macros now EXCEPT \folio
\def\rawbackslashxx{\indexbackslash}% \indexbackslash isn't defined now
% so it will be output as is; and it will print as backslash in the indx.
%
% Now process the index-string once, with all font commands turned off,
% to get the string to sort the index by.
{\indexnofonts
\xdef\temp1{#2}%
}%
% Now produce the complete index entry. We process the index-string again,
% this time with font commands expanded, to get what to print in the index.
\edef\temp{%
\write \csname#1indfile\endcsname{%
\realbackslash entry {\temp1}{\folio}{#2}}}%
\temp }%
\penalty\count10}}
\def\dosubind #1#2#3{%
{\indexdummies % Must do this here, since \bf, etc expand at this stage
\count10=\lastpenalty %
\escapechar=`\\%
{\let\folio=0%
\def\rawbackslashxx{\indexbackslash}%
%
% Now process the index-string once, with all font commands turned off,
% to get the string to sort the index by.
{\indexnofonts
\xdef\temp1{#2 #3}%
}%
% Now produce the complete index entry. We process the index-string again,
% this time with font commands expanded, to get what to print in the index.
\edef\temp{%
\write \csname#1indfile\endcsname{%
\realbackslash entry {\temp1}{\folio}{#2}{#3}}}%
\temp }%
\penalty\count10}}
% The index entry written in the file actually looks like
% \entry {sortstring}{page}{topic}
% or
% \entry {sortstring}{page}{topic}{subtopic}
% The texindex program reads in these files and writes files
% containing these kinds of lines:
% \initial {c}
% before the first topic whose initial is c
% \entry {topic}{pagelist}
% for a topic that is used without subtopics
% \primary {topic}
% for the beginning of a topic that is used with subtopics
% \secondary {subtopic}{pagelist}
% for each subtopic.
%*********************************************
%*** jtexinfo patch by S.Tomura 89-Nov-23
%***
\def\Jdoind #1#2#3{%
{\indexdummies % Must do this here, since \bf, etc expand at this stage
\count10=\lastpenalty %
\escapechar=`\\%
{\let\folio=0% Expand all macros now EXCEPT \folio
\def\rawbackslashxx{\indexbackslash}% \indexbackslash isn't defined now
% so it will be output as is; and it will print as backslash in the indx.
%
% Now process the index-string once, with all font commands turned off,
% to get the string to sort the index by.
{\indexnofonts
\xdef\temp1{#3}%
}%
% Now produce the complete index entry. We process the index-string again,
% this time with font commands expanded, to get what to print in the index.
\edef\temp{%
\write \csname#1indfile\endcsname{%
\realbackslash entry {\temp1}{\folio}{#2}}}%
\temp }%
\penalty\count10}}
%*** end of patch
%*********************************************
% Define the macros used in formatting output of the sorted index material.
% This is what you call to cause a particular index to get printed.
% Write
% @unnumbered Function Index
% @printindex fn
\def\printindex{\parsearg\doprintindex}
\def\doprintindex#1{\tex %
\catcode`\%=\other\catcode`\&=\other\catcode`\#=\other
\catcode`\$=\other\catcode`\_=\other
\catcode`\~=\other
% The following don't help, since the chars were translated
% when the raw index was written, and their fonts were discarded
% due to \indexnofonts.
%\catcode`\"=\active
%\catcode`\^=\active
%\catcode`\_=\active
%\catcode`\|=\active
%\catcode`\<=\active
%\catcode`\>=\active
\def\indexbackslash{\rawbackslashxx}
\indexfonts\rm\mc \tolerance=9500 \advance\baselineskip -1pt
\begindoublecolumns
\openin 1 \jobname.#1s
\ifeof 1 \else \closein 1 \input \jobname.#1s
\fi
\enddoublecolumns
\Etex}
% These macros are used by the sorted index file itself.
% Change them to control the appearance of the index.
% Same as \bigskipamount except no shrink.
% \balancecolumns gets confused if there is any shrink.
\newskip\initialskipamount \initialskipamount 12pt plus4pt
\def\doublecolumnout{\splittopskip=\topskip \splitmaxdepth=\maxdepth
\dimen@=\pageheight \advance\dimen@ by-\ht\partialpage
\setbox0=\vsplit255 to\dimen@ \setbox2=\vsplit255 to\dimen@
\onepageout\pagesofar \unvbox255 \penalty\outputpenalty}
\def\pagesofar{\unvbox\partialpage %
\hsize=\doublecolumnhsize % have to restore this since output routine
% changes it to set cropmarks (P. A. MacKay, 12 Nov. 1986)
\wd0=\hsize \wd2=\hsize \hbox to\pagewidth{\box0\hfil\box2}}
\def\balancecolumns{%
% Unset the glue.
\setbox255=\vbox{\unvbox255}
\dimen@=\ht255
\advance\dimen@ by\topskip \advance\dimen@ by-\baselineskip
\divide\dimen@ by2
\availdimen@=\pageheight \advance\availdimen@ by-\ht\partialpage
% If the remaining data is too big for one page,
% output one page normally, then work with what remains.
\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
\global\setbox1=\vsplit3 to\dimen@
\ifdim\ht3>\dimen@ \global\advance\dimen@ by1pt \repeat}
\setbox0=\vbox to\dimen@{\unvbox1} \setbox2=\vbox to\dimen@{\unvbox3}
\pagesofar}
\catcode `\@=\other
\message{sectioning,}
% Define chapters, sections, etc.
% This counter is funny since it counts through charcodes of letters A, B, ...
\newcount \appendixno \appendixno = `\@
\def\appendixletter{\char\the\appendixno}
\newwrite \contentsfile
% This is called from \setfilename.
\def\opencontents{\openout \contentsfile = \jobname.toc}
% Each @chapter defines this as the name of the chapter.
% page headings and footings can use it. @section does likewise
\def\thischapter{} \def\thissection{}
\def\seccheck#1{\if \pageno<0 %
\errmessage{@#1 not allowed after generating table of contents}\fi
%
}
\def\chapternofonts{%
\let\rawbackslash=\relax%
\let\frenchspacing=\relax%
\def\TeX{\realbackslash TeX}
\def\dots{\realbackslash dots}
\def\copyright{\realbackslash copyright}
\def\tt{\realbackslash tt}
\def\bf{\realbackslash bf }
\def\w{\realbackslash w}
\def\less{\realbackslash less}
\def\gtr{\realbackslash gtr}
\def\hat{\realbackslash hat}
\def\char{\realbackslash char}
\def\tclose##1{\realbackslash tclose {##1}}
\def\code##1{\realbackslash code {##1}}
\def\samp##1{\realbackslash samp {##1}}
\def\r##1{\realbackslash r {##1}}
\def\b##1{\realbackslash b {##1}}
\def\key##1{\realbackslash key {##1}}
\def\file##1{\realbackslash file {##1}}
\def\kbd##1{\realbackslash kbd {##1}}
% These are redefined because @smartitalic wouldn't work inside xdef.
\def\i##1{\realbackslash i {##1}}
\def\cite##1{\realbackslash cite {##1}}
\def\var##1{\realbackslash var {##1}}
\def\emph##1{\realbackslash emph {##1}}
\def\dfn##1{\realbackslash dfn {##1}}
}
\outer\def\chapter{\parsearg\chapterzzz}
\def\chapterzzz #1{\seccheck{chapter}%
\secno=0 \subsecno=0 \subsubsecno=0 \global\advance \chapno by 1 \message{Chapter \the\chapno}%
\chapmacro {#1}{\the\chapno}%
\gdef\thissection{#1}%
\gdef\thischaptername{#1}%
% We don't substitute the actual chapter name into \thischapter
% because we don't want its macros evaluated now.
\xdef\thischapter{Chapter \the\chapno: \noexpand\thischaptername}%
{\chapternofonts%
\edef\temp{{\realbackslash chapentry {#1}{\the\chapno}{\noexpand\folio}}}%
\escapechar=`\\%
\write \contentsfile \temp %
\donoderef %
}}
% These are variants which are not "outer", so they can appear in @ifinfo.
\def\infounnumbered{\parsearg\unnumberedzzz}
\def\infounnumberedsec{\parsearg\unnumberedseczzz}
\def\infounnumberedsubsec{\parsearg\unnumberedsubseczzz}
\def\infounnumberedsubsubsec{\parsearg\unnumberedsubsubseczzz}
% These macros generate a chapter, section, etc. heading only
% (including whitespace, linebreaking, etc. around it),
% given all the information in convenient, parsed form.
%%% Args are the skip and penalty (usually negative)
\def\dobreak#1#2{\par\ifdim\lastskip<#1\removelastskip\penalty#2\vskip#1\fi}
\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 \line{\rm\mc #1\hfill}}%
\ifdim \parskip<10pt \kern 10pt\kern -\parskip\fi \penalty 10000}
\message{toc printing,}
% Finish up the main text and prepare to read what we've written
% to \contentsfile.
\def\startcontents#1{%
\ifnum \pageno>0
\pagealignmacro
\immediate\closeout \contentsfile
\pageno = -1 % Request roman numbered pages.
\fi
% Don't need to put `Contents' or `Short Contents' in the headline.
% It is abundantly clear what they are.
\unnumbchapmacro{#1}\def\thischapter{}%
\begingroup % Set up to handle contents files properly.
\catcode`\\=0 \catcode`\{=1 \catcode`\}=2 \catcode`\@=11
\raggedbottom % Worry more about breakpoints than the bottom.
\advance\hsize by -1in % Don't use the full line length.
}
% Normal (long) toc.
\outer\def\contents{%
\startcontents{Table of Contents}%
\input \jobname.toc
\endgroup
\vfill \eject
}
% And just the chapters.
\outer\def\summarycontents{%
\startcontents{Short Contents}%
%
\let\chapentry = \shortchapentry
\let\unnumbchapentry = \shortunnumberedentry
% We want a true roman here for the page numbers.
\secfonts \let\rm = \truesecrm \rm
\advance\baselineskip by 1pt % Open it up a little.
\def\secentry ##1##2##3##4{}
\def\unnumbsecentry ##1##2{}
\def\subsecentry ##1##2##3##4##5{}
\def\unnumbsubsecentry ##1##2{}
\def\subsubsecentry ##1##2##3##4##5##6{}
\def\unnumbsubsubsecentry ##1##2{}
\input \jobname.toc
\endgroup
\vfill \eject
}
\let\shortcontents = \summarycontents
% These macros generate individual entries in the table of contents.
% The first argument is the chapter or section name.
% The last argument is the page number.
% The arguments in between are the chapter number, section number, ...
% Chapter-level things, for both the long and short contents.
\def\chapentry#1#2#3{\dochapentry{#2\labelspace#1}{#3}}
\def\shortchapentry#1#2#3{%
\line{{#2\labelspace #1}\dotfill\doshortpageno{#3}}%
}
% And subsubsections.
\def\subsubsecentry#1#2#3#4#5#6{\dosubsubsecentry{#2.#3.#4.#5\labelspace#1}{#6}}
\def\unnumbsubsubsecentry#1#2{\dosubsubsecentry{#1}{#2}}
% This parameter controls the indentation of the various levels.
\newdimen\tocindent \tocindent = 3pc
% Now for the actual typesetting. In all these, #1 is the text and #2 is the
% page number.
%
% If the toc has to be broken over pages, we would want to be at chapters
% if at all possible; hence the \penalty.
\def\dochapentry#1#2{%
\penalty-300 \vskip\baselineskip
\line{\chapentryfonts #1\dotfill \dopageno{#2}}%
\nobreak\vskip .25\baselineskip
}
% 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.
% Furthermore, these definitions must come after we define our fonts.
\newbox\dblarrowbox \newbox\longdblarrowbox
\newbox\pushcharbox \newbox\bullbox
\newbox\equivbox \newbox\errorbox
\let\ptexequiv = \equiv
{\tentt
\global\setbox\dblarrowbox = \hbox to 1em{\hfil$\Rightarrow$\hfil}
\global\setbox\longdblarrowbox = \hbox to 1em{\hfil$\mapsto$\hfil}
\global\setbox\pushcharbox = \hbox to 1em{\hfil$\dashv$\hfil}
\global\setbox\equivbox = \hbox to 1em{\hfil$\ptexequiv$\hfil}
% Adapted from the manmac format (p.420 of TeXbook)
\global\setbox\bullbox = \hbox to 1em{\kern.15em\vrule height .75ex width .85ex
depth .1ex\hfil}
}
% Does anyone really want this?
% \def\bull{\leavevmode\copy\bullbox}
% Adapted from the TeXbook's \boxit.
{\tentt \global\dimen0 = 3em}% Width of the box.
\dimen2 = .55pt % Thickness of rules
% The text. (`r' is open on the right, `e' somewhat less so on the left.)
\setbox0 = \hbox{\kern-.75pt \tensf error\kern-1.5pt}
\global\setbox\errorbox=\hbox to \dimen0{\hfil
\hsize = \dimen0 \advance\hsize by -5.8pt % Space to left+right.
\advance\hsize by -2\dimen2 % Rules.
\vbox{
\hrule height\dimen2
\hbox{\vrule width\dimen2 \kern3pt % Space to left of text.
\vtop{\kern2.4pt \box0 \kern2.4pt}% Space above/below.
\kern3pt\vrule width\dimen2}% Space to right.
\hrule height\dimen2}
\hfil}
% The @error{} command.
\def\error{\leavevmode\lower.7ex\copy\errorbox}
% @tex ... @end tex escapes into raw Tex temporarily.
% One exception: @ is still an escape character, so that @end tex works.
% But \@ or @@ will get a plain tex @ character.
% Define @lisp ... @endlisp.
% @lisp does a \begingroup so it can rebind things,
% including the definition of @endlisp (which normally is erroneous).
% Amount to narrow the margins by for @lisp.
\newskip\lispnarrowing \lispnarrowing=0.4in
% This is the definition that ^M gets inside @lisp
% phr: changed space to \null, to avoid overfull hbox problems.
{\obeyspaces%
\gdef\lisppar{\null\endgraf}}
% Cause \obeyspaces to make each Space cause a word-separation
% rather than the default which is that it acts punctuation.
% This is because space in tt font looks funny.
{\obeyspaces %
\gdef\sepspaces{\def {\ }}}
\def\lisp{\aboveenvbreak\begingroup\inENV %This group ends at the end of the @lisp body
\hfuzz=12truept % Don't be fussy
% Make spaces be word-separators rather than space tokens.
\sepspaces %
% Single space lines
\singlespace %
% The following causes blank lines not to be ignored
% by adding a space to the end of each line.
\let\par=\lisppar
\def\Elisp{\endgroup\afterenvbreak}%
\parskip=0pt
\advance \leftskip by \lispnarrowing
\parindent=0pt
\let\exdent=\internalexdent
\obeyspaces \obeylines \tt \rawbackslash
\def\next##1{}\next}
% Macro for 9 pt. examples, necessary to print with 5" lines.
% From Pavel@xerox. This is not really used unless the
% @smallbook command is given.
\def\smalllispx{\aboveenvbreak\begingroup\inENV
% This group ends at the end of the @lisp body
\hfuzz=12truept % Don't be fussy
% Make spaces be word-separators rather than space tokens.
\sepspaces %
% Single space lines
\singlespace %
% The following causes blank lines not to be ignored
% by adding a space to the end of each line.
\let\par=\lisppar
\def\Esmalllisp{\endgroup\afterenvbreak}%
\parskip=0pt
\advance \leftskip by \lispnarrowing
\parindent=0pt
\let\exdent=\internalexdent
\obeyspaces \obeylines \ninett \indexfonts \rawbackslash
\def\next##1{}\next}
% This is @display; same as @lisp except use roman font.
\def\display{\begingroup\inENV %This group ends at the end of the @display body
\aboveenvbreak
% Make spaces be word-separators rather than space tokens.
\sepspaces %
% Single space lines
\singlespace %
% The following causes blank lines not to be ignored
% by adding a space to the end of each line.
\let\par=\lisppar
\def\Edisplay{\endgroup\afterenvbreak}%
\parskip=0pt
\advance \leftskip by \lispnarrowing
\parindent=0pt
\let\exdent=\internalexdent
\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.
\def\quotation{\begingroup\inENV %This group ends at the end of the @quotation body
{\parskip=0pt % because we will skip by \parskip too, later
\aboveenvbreak}%
\singlespace
\parindent=0pt
\def\Equotation{\par\endgroup\afterenvbreak}%
\advance \rightskip by \lispnarrowing
\advance \leftskip by \lispnarrowing}
\message{defuns,}
% Define formatter for defuns
% First, allow user to change definition object font (\df) internally
\def\setdeffont #1 {\csname DEF#1\endcsname}
\newcount\parencount
% define \functionparens, which makes ( and ) and & do special things.
% \functionparens affects the group it is contained in.
\def\activeparens{%
\catcode`\(=\active \catcode`\)=\active \catcode`\&=\active
\catcode`\[=\active \catcode`\]=\active}
{\activeparens % Now, smart parens don't turn on until &foo (see \amprm)
\gdef\functionparens{\boldbrax\let&=\amprm\parencount=0 }
\gdef\boldbrax{\let(=\opnr\let)=\clnr\let[=\lbrb\let]=\rbrb}
% Definitions of (, ) and & used in args for functions.
% This is the definition of ( outside of all parentheses.
\gdef\oprm#1 {{\rm\char`\(}#1 \bf \let(=\opnested %
\global\advance\parencount by 1 }
%
% This is the definition of ( when already inside a level of parens.
\gdef\opnested{\char`\(\global\advance\parencount by 1 }
%
\gdef\clrm{% Print a paren in roman if it is taking us back to depth of 0.
% also in that case restore the outer-level definition of (.
\ifnum \parencount=1 {\rm \char `\)}\sl \let(=\oprm \else \char `\) \fi
\global\advance \parencount by -1 }
% If we encounter &foo, then turn on ()-hacking afterwards
\gdef\amprm#1 {{\rm\}\let(=\oprm \let)=\clrm\ }
%
\gdef\normalparens{\boldbrax\let&=\ampnr}
} % End of definition inside \activeparens
%% These parens (in \boldbrax) actually are a little bolder than the
%% contained text. This is especially needed for [ and ]
\def\opnr{{\sf\char`\(}} \def\clnr{{\sf\char`\)}} \def\ampnr{\&}
\def\lbrb{{\bf\char`\[}} \def\rbrb{{\bf\char`\]}}
% First, defname, which formats the header line itself.
% #1 should be the function name.
% #2 should be the type of definition, such as "Function".
\def\defname #1#2{%
\leftskip = 0in %
\noindent %
\setbox0=\hbox{\hskip \deflastargmargin{\rm\mc #2}\hskip \deftypemargin}%
\dimen0=\hsize \advance \dimen0 by -\wd0 % compute size for first line
\dimen1=\hsize \advance \dimen1 by -\defargsindent %size for continuations
\parshape 2 0in \dimen0 \defargsindent \dimen1 %
% Now output arg 2 ("Function" or some such)
% ending at \deftypemargin from the right margin,
% but stuck inside a box of width 0 so it does not interfere with linebreaking
\rlap{\rightline{{\rm\mc #2}\hskip \deftypemargin}}%
\tolerance=10000 \hbadness=10000 % Make all lines underfull and no complaints
{\df #1}\enskip % Generate function name
}
% Actually process the body of a definition
% #1 should be the terminating control sequence, such as \Edefun.
% #2 should be the "another name" control sequence, such as \defunx.
% #3 should be the control sequence that actually processes the header,
% such as \defunheader.
\def\defparsebody #1#2#3{\begingroup\inENV% Environment for definitionbody
\medbreak %
% Define the end token that this defining construct specifies
% so that it will exit this group.
\def#1{\endgraf\endgroup\medbreak}%
\def#2{\begingroup\obeylines\activeparens\spacesplit#3}%
\parindent=0in \leftskip=\defbodyindent \rightskip=\defbodyindent %
\begingroup %
\catcode 61=\active %
\obeylines\activeparens\spacesplit#3}
\def\defmethparsebody #1#2#3#4 {\begingroup\inENV %
\medbreak %
% Define the end token that this defining construct specifies
% so that it will exit this group.
\def#1{\endgraf\endgroup\medbreak}%
\def#2##1 {\begingroup\obeylines\activeparens\spacesplit{#3{##1}}}%
\parindent=0in \leftskip=\defbodyindent \rightskip=\defbodyindent %
\begingroup\obeylines\activeparens\spacesplit{#3{#4}}}
\def\defopparsebody #1#2#3#4#5 {\begingroup\inENV %
\medbreak %
% Define the end token that this defining construct specifies
% so that it will exit this group.
\def#1{\endgraf\endgroup\medbreak}%
\def#2##1 ##2 {\def#4{##1}%
\begingroup\obeylines\activeparens\spacesplit{#3{##2}}}%
\parindent=0in \leftskip=\defbodyindent %
\begingroup\obeylines\activeparens\spacesplit{#3{#5}}}
% Split up #2 at the first space token.
% call #1 with two arguments:
% the first is all of #2 before the space token,
% the second is all of #2 after that space token.
% If #2 contains no space token, all of it is passed as the first arg
% and the second is passed as empty.
\def\defunheader #1#2{\doind {fn}{\code{#1}}% Make entry in function index
\begingroup\defname {#1}{Function}%
\defunargs {#2}\endgroup %
\catcode 61=\other % Turn off change made in \defparsebody
}
% @deftypefun int foobar (int @var{foo}, float @var{bar})
% #1 is the data type. #2 is the name and args.
\def\deftypefunheader #1#2{\deftypefunheaderx{#1}#2 \relax}
% #1 is the data type, #2 the name, #3 the args.
\def\deftypefunheaderx #1#2 #3\relax{\doind {fn}{\code{#2}}% Make entry in function index
\begingroup\defname {\code{#1} #2}{Function}%
\deftypefunargs {#3}\endgroup %
\catcode 61=\other % Turn off change made in \defparsebody
}
% @deftypefn {Library Function} int foobar (int @var{foo}, float @var{bar})
% #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}
% #1 is the classification, #2 the data type, #3 the name, #4 the args.
\def\deftypefnheaderx #1#2#3 #4\relax{\doind {fn}{\code{#3}}% Make entry in function index
\begingroup\defname {\code{#2} #3}{#1}%
\deftypefunargs {#4}\endgroup %
\catcode 61=\other % Turn off change made in \defparsebody
}
\def\defmacheader #1#2{\doind {fn}{\code{#1}}% Make entry in function index
\begingroup\defname {#1}{Macro}%
\defunargs {#2}\endgroup %
\catcode 61=\other % Turn off change made in \defparsebody
}
\def\defspecheader #1#2{\doind {fn}{\code{#1}}% Make entry in function index
\begingroup\defname {#1}{Special Form}%
\defunargs {#2}\endgroup %
\catcode 61=\other % Turn off change made in \defparsebody
}
% This definition is run if you use @defunx
% anywhere other than immediately after a @defun or @defunx.
\def\deffnx #1 {\errmessage{@deffnx in invalid context}}
\def\defunx #1 {\errmessage{@defunx in invalid context}}
\def\defmacx #1 {\errmessage{@defmacx in invalid context}}
\def\defspecx #1 {\errmessage{@defspecx in invalid context}}
\def\deftypefnx #1 {\errmessage{@deftypefnx in invalid context}}
\def\deftypeunx #1 {\errmessage{@deftypeunx in invalid context}}
\def\defopheader #1#2#3{\dosubind {fn}{\code{#2}}{on #1}% Make entry in function index
\begingroup\defname {#2}{\defoptype{} on #1}%
\defunargs {#3}\endgroup %
}
\def\defmethodheader #1#2#3{\dosubind {fn}{\code{#2}}{on #1}% entry in function index
\begingroup\defname {#2}{Method on #1}%
\defunargs {#3}\endgroup %
}
\def\defcvarheader #1#2#3{%
\dosubind {vr}{\code{#2}}{of #1}% Make entry in var index
\begingroup\defname {#2}{\defcvtype{} of #1}%
\defvarargs {#3}\endgroup %
}
\def\defivarheader #1#2#3{%
\dosubind {vr}{\code{#2}}{of #1}% Make entry in var index
\begingroup\defname {#2}{Instance Variable of #1}%
\defvarargs {#3}\endgroup %
}
% These definitions are run if you use @defmethodx, etc.,
% anywhere other than immediately after a @defmethod, etc.
\def\defopx #1 {\errmessage{@defopx in invalid context}}
\def\defmethodx #1 {\errmessage{@defmethodx in invalid context}}
\def\defcvx #1 {\errmessage{@defcvx in invalid context}}
\def\defivarx #1 {\errmessage{@defivarx in invalid context}}
% Now @defvar
% First, define the processing that is wanted for arguments of @defvar.
% This is actually simple: just print them in roman.
% This must expand the args and terminate the paragraph they make up
\def\defvarargs #1{\normalparens #1%
\interlinepenalty=10000
\endgraf\penalty 10000\vskip -\parskip\penalty 10000}
% #1 is the data type. #2 is the name.
\def\deftypevarheader #1#2{\doind {vr}{\code{#2}}% Make entry in variables index
\begingroup\defname {\code{#1} #2}{Variable}%
\interlinepenalty=10000
\endgraf\penalty 10000\vskip -\parskip\penalty 10000
\endgroup}
% \xref, \pxref, and \ref generate cross-references to specified points.
% For \xrefX, #1 is the node name, #2 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
% 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{\i{\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
% 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 simply give the text of
% the node name again, so it is as if TeX is seeing it for the first
% time.
\ifdim \wd1>0pt
section `\printednodename' in \printedmanual
\else%
\turnoffactive%
\refx{#1-snt}{} [\printednodename], page\tie\refx{#1-pg}{}%
\fi
\endgroup}
% \dosetq is the interface for calls from other macros
% Use \turnoffactive so that punctuation chars such as underscore
% work in node names.
\def\dosetq #1#2{{\let\folio=0 \turnoffactive%
\edef\next{\write\auxfile{\internalsetq {#1}{#2}}}%
\next}}
% \internalsetq {foo}{page} expands into CHARACTERS 'xrdef {foo}{...expansion of \Ypage...}
% When the aux file is read, ' is the escape character
% 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.
%
\ifx\inputlineno\thisisundefined
\let\linenumber = \empty % Non-3.0.
\else
\def\linenumber{\the\inputlineno:\space}
\fi
% Define \refx{NAME}{SUFFIX} to reference a cross-reference string named NAME.
% If its value is nonempty, SUFFIX is output afterward.
\def\refx#1#2{%
\expandafter\ifx\csname X#1\endcsname\relax
% If not defined, say something at least.
$\langle$un\-de\-fined$\rangle$%
\ifhavexrefs
\message{\linenumber Undefined cross reference `#1'.}%
\else
\ifwarnedxrefs\else
\global\warnedxrefstrue
\message{Cross reference values unknown; you must run TeX again.}%
\fi
\fi
\else
% It's defined, so just use it.
\csname X#1\endcsname
\fi
#2% Output the suffix in any case.
}
% Read the last existing aux file, if any. No error if none exists.
% This is the macro invoked by entries in the aux file.
\def\xrdef #1#2{
{\catcode`\'=\other\expandafter \gdef \csname X#1\endcsname {#2}}}
\def\readauxfile{%
\begingroup
\catcode `\^^@=\other
\catcode `\=\other
\catcode `\=\other
\catcode `\^^C=\other
\catcode `\^^D=\other
\catcode `\^^E=\other
\catcode `\^^F=\other
\catcode `\^^G=\other
\catcode `\^^H=\other
\catcode `\ =\other
\catcode `\^^L=\other
\catcode `\=\other
\catcode `\=\other
\catcode `\=\other
\catcode `\=\other
\catcode `\=\other
\catcode `\=\other
\catcode `\=\other
\catcode `\=\other
\catcode `\=\other
\catcode `\=\other
\catcode `\=\other
\catcode `\=\other
\catcode `\=\other
\catcode `\^^[=\other
\catcode `\^^\=\other
\catcode `\^^]=\other
\catcode `\^^^=\other
\catcode `\^^_=\other
\catcode `\@=\other
\catcode `\^=\other
\catcode `\~=\other
\catcode `\[=\other
\catcode `\]=\other
\catcode`\"=\other
\catcode`\_=\other
\catcode`\|=\other
\catcode`\<=\other
\catcode`\>=\other
\catcode `\$=\other
\catcode `\#=\other
\catcode `\&=\other
% the aux file uses ' as the escape.
% Turn off \ as an escape so we do not lose on
% entries which were dumped with control sequences in their names.
% For example, 'xrdef {$\leq $-fun}{page ...} made by @defun ^^
% Reference to such entries still does not work the way one would wish,
% but at least they do not bomb out when the aux file is read in.
\catcode `\{=1 \catcode `\}=2
\catcode `\%=\other
\catcode `\'=0
\catcode `\\=\other
\openin 1 \jobname.aux
\ifeof 1 \else \closein 1 \input \jobname.aux \global\havexrefstrue
\fi
% Open the new aux file. Tex will close it automatically at exit.
\openout \auxfile=\jobname.aux
\endgroup}
%% 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}
% Define macros to output various characters with catcode for normal text.
\catcode`\"=\other
\catcode`\~=\other
\catcode`\^=\other
\catcode`\_=\other
\catcode`\|=\other
\catcode`\<=\other
\catcode`\>=\other
\catcode`\+=\other
\def\normaldoublequote{"}
\def\normaltilde{~}
\def\normalcaret{^}
\def\normalunderscore{_}
\def\normalverticalbar{|}
\def\normalless{<}
\def\normalgreater{>}
\def\normalplus{+}
% This macro is used to make a character print one way in ttfont
% where it can probably just be output, and another way in other fonts,
% where something hairier probably needs to be done.
%
% #1 is what to print if we are indeed using \tt; #2 is what to print
% otherwise. 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, we can check that font parameter.
%
\def\ifusingtt#1#2{\ifdim \fontdimen3\the\font=0pt #1\else #2\fi}
% Turn off all special characters except @
% (and those which the user can use as if they were ordinary).
% Most of these we simply print from the \tt font, but for some, we can
% use math or other variants that look better in normal text.
% 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.
{\catcode`\==\active
\global\def={{\tt \char 61}}}
\catcode`\@=0
% \rawbackslashxx output one backslash character in current font
\global\chardef\rawbackslashxx=`\\
%{\catcode`\\=\other
%@gdef@rawbackslashxx{\}}
% \rawbackslash redefines \ as input to do \rawbackslashxx.
{\catcode`\\=\active
@gdef@rawbackslash{@let\=@rawbackslashxx }}
% \normalbackslash outputs one backslash in fixed width font.
\def\normalbackslash{{\tt\rawbackslashxx}}
% Say @foo, not \foo, in error messages.
\escapechar=`\@
% 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
% a backslash.
%
@gdef@eatinput input texinfo{@fixbackslash}
@global@let\ = @eatinput
% 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
% that, assuming it is called before the first `\' could plausibly occur.
%
@gdef@fixbackslash{@ifx\@eatinput @let\ = @normalbackslash @fi}
%% 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
@catcode`@$=@other @catcode`@%=@other @catcode`@&=@other @catcode`@#=@other
