texinfo.tex

一个类似windows

\let\indsf=\indrm
\let\indbf=\indrm
\setfont\indsc\scshape{10}{900}
\font\indi=cmmi9
\font\indsy=cmsy9

% Fonts for title page:
\setfont\titlerm\rmbshape{12}{\magstep3}
\setfont\titleit\itbshape{10}{\magstep4}
\setfont\titlesl\slbshape{10}{\magstep4}
\setfont\titlett\ttbshape{12}{\magstep3}
\setfont\titlettsl\ttslshape{10}{\magstep4}
\setfont\titlesf\sfbshape{17}{\magstep1}
\let\titlebf=\titlerm
\setfont\titlesc\scbshape{10}{\magstep4}
\font\titlei=cmmi12 scaled \magstep3
\font\titlesy=cmsy10 scaled \magstep4
\def\authorrm{\secrm}

% Chapter (and unnumbered) fonts (17.28pt).
\setfont\chaprm\rmbshape{12}{\magstep2}
\setfont\chapit\itbshape{10}{\magstep3}
\setfont\chapsl\slbshape{10}{\magstep3}
\setfont\chaptt\ttbshape{12}{\magstep2}
\setfont\chapttsl\ttslshape{10}{\magstep3}
\setfont\chapsf\sfbshape{17}{1000}
\let\chapbf=\chaprm
\setfont\chapsc\scbshape{10}{\magstep3}
\font\chapi=cmmi12 scaled \magstep2
\font\chapsy=cmsy10 scaled \magstep3

% Section fonts (14.4pt).
\setfont\secrm\rmbshape{12}{\magstep1}
\setfont\secit\itbshape{10}{\magstep2}
\setfont\secsl\slbshape{10}{\magstep2}
\setfont\sectt\ttbshape{12}{\magstep1}
\setfont\secttsl\ttslshape{10}{\magstep2}
\setfont\secsf\sfbshape{12}{\magstep1}
\let\secbf\secrm
\setfont\secsc\scbshape{10}{\magstep2}
\font\seci=cmmi12 scaled \magstep1
\font\secsy=cmsy10 scaled \magstep2

% \setfont\ssecrm\bxshape{10}{\magstep1}    % This size an font looked bad.
% \setfont\ssecit\itshape{10}{\magstep1}    % The letters were too crowded.
% \setfont\ssecsl\slshape{10}{\magstep1}
% \setfont\ssectt\ttshape{10}{\magstep1}
% \setfont\ssecsf\sfshape{10}{\magstep1}

%\setfont\ssecrm\bfshape{10}{1315}      % Note the use of cmb rather than cmbx.
%\setfont\ssecit\itshape{10}{1315}      % Also, the size is a little larger than
%\setfont\ssecsl\slshape{10}{1315}      % being scaled magstep1.
%\setfont\ssectt\ttshape{10}{1315}
%\setfont\ssecsf\sfshape{10}{1315}

%\let\ssecbf=\ssecrm

% Subsection fonts (13.15pt).
\setfont\ssecrm\rmbshape{12}{\magstephalf}
\setfont\ssecit\itbshape{10}{1315}
\setfont\ssecsl\slbshape{10}{1315}
\setfont\ssectt\ttbshape{12}{\magstephalf}
\setfont\ssecttsl\ttslshape{10}{1315}
\setfont\ssecsf\sfbshape{12}{\magstephalf}
\let\ssecbf\ssecrm
\setfont\ssecsc\scbshape{10}{\magstep1}
\font\sseci=cmmi12 scaled \magstephalf
\font\ssecsy=cmsy10 scaled 1315
% The smallcaps and symbol fonts should actually be scaled \magstep1.5,
% but that is not a standard magnification.

% In order for the font changes to affect most math symbols and letters,
% we have to define the \textfont of the standard families.  Since
% texinfo doesn't allow for producing subscripts and superscripts, we
% don't bother to reset \scriptfont and \scriptscriptfont (which would
% also require loading a lot more fonts).
%
\def\resetmathfonts{%
  \textfont0 = \tenrm \textfont1 = \teni \textfont2 = \tensy
  \textfont\itfam = \tenit \textfont\slfam = \tensl \textfont\bffam = \tenbf
  \textfont\ttfam = \tentt \textfont\sffam = \tensf
}


% The font-changing commands redefine the meanings of \tenSTYLE, instead
% 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
% cases, not the current font.  Plain TeX does \def\bf{\fam=\bffam
% \tenbf}, for example.  By redefining \tenbf, we obviate the need to
% redefine \bf itself.
\def\textfonts{%
  \let\tenrm=\textrm \let\tenit=\textit \let\tensl=\textsl
  \let\tenbf=\textbf \let\tentt=\texttt \let\smallcaps=\textsc
  \let\tensf=\textsf \let\teni=\texti \let\tensy=\textsy \let\tenttsl=\textttsl
  \resetmathfonts}
\def\titlefonts{%
  \let\tenrm=\titlerm \let\tenit=\titleit \let\tensl=\titlesl
  \let\tenbf=\titlebf \let\tentt=\titlett \let\smallcaps=\titlesc
  \let\tensf=\titlesf \let\teni=\titlei \let\tensy=\titlesy
  \let\tenttsl=\titlettsl
  \resetmathfonts \setleading{25pt}}
\def\titlefont#1{{\titlefonts #1}}
\def\chapfonts{%
  \let\tenrm=\chaprm \let\tenit=\chapit \let\tensl=\chapsl
  \let\tenbf=\chapbf \let\tentt=\chaptt \let\smallcaps=\chapsc
  \let\tensf=\chapsf \let\teni=\chapi \let\tensy=\chapsy \let\tenttsl=\chapttsl
  \resetmathfonts \setleading{19pt}}
\def\secfonts{%
  \let\tenrm=\secrm \let\tenit=\secit \let\tensl=\secsl
  \let\tenbf=\secbf \let\tentt=\sectt \let\smallcaps=\secsc
  \let\tensf=\secsf \let\teni=\seci \let\tensy=\secsy \let\tenttsl=\secttsl
  \resetmathfonts \setleading{16pt}}
\def\subsecfonts{%
  \let\tenrm=\ssecrm \let\tenit=\ssecit \let\tensl=\ssecsl
  \let\tenbf=\ssecbf \let\tentt=\ssectt \let\smallcaps=\ssecsc
  \let\tensf=\ssecsf \let\teni=\sseci \let\tensy=\ssecsy \let\tenttsl=\ssecttsl
  \resetmathfonts \setleading{15pt}}
\let\subsubsecfonts = \subsecfonts % Maybe make sssec fonts scaled magstephalf?
\def\indexfonts{%
  \let\tenrm=\indrm \let\tenit=\indit \let\tensl=\indsl
  \let\tenbf=\indbf \let\tentt=\indtt \let\smallcaps=\indsc
  \let\tensf=\indsf \let\teni=\indi \let\tensy=\indsy \let\tenttsl=\indttsl
  \resetmathfonts \setleading{12pt}}

% Set up the default fonts, so we can use them for creating boxes.
%
\textfonts

% Count depth in font-changes, for error checks
\newcount\fontdepth \fontdepth=0

% Fonts for short table of contents.
\setfont\shortcontrm\rmshape{12}{1000}
\setfont\shortcontbf\bxshape{12}{1000}
\setfont\shortcontsl\slshape{12}{1000}

%% 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}

\let\i=\smartitalic
\let\var=\smartitalic
\let\dfn=\smartitalic
\let\emph=\smartitalic
\let\cite=\smartitalic

\def\b#1{{\bf #1}}
\let\strong=\b

% We can't just use \exhyphenpenalty, because that only has effect at
% the end of a paragraph.  Restore normal hyphenation at the end of the
% 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}
\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}

\let\file=\samp

% @code is a modification of @t,
% which makes spaces the same size as normal in the surrounding text.
\def\tclose#1{%
  {%
    % Change normal interword space to be same as for the current font.
    \spaceskip = \fontdimen2\font
    %
    % Switch to typewriter.
    \tt
    %
    % 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
\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
% _ is always active; and it shouldn't be \let = to an _ that is a
% subscript character anyway. Then, @cindex @samp{_} (for example)
% fails.  --karl
\global\def\indexbreaks{%
  \catcode`\-=\active \let-\realdash
}
}

\def\realdash{-}
\def\codedash{-\discretionary{}{}{}}
\def\codeunder{\ifusingtt{\normalunderscore\discretionary{}{}{}}{\_}}
\def\codex #1{\tclose{#1}\endgroup}

%\let\exp=\tclose  %Was temporary

% @kbd is like @code, except that if the argument is just one @key command,
% then @kbd has no effect.

% @kbdinputstyle -- arg is `distinct' (@kbd uses slanted tty font always),
%   `example' (@kbd uses ttsl only inside of @example and friends),
%   or `code' (@kbd uses normal tty font always).
\def\kbdinputstyle{\parsearg\kbdinputstylexxx}
\def\kbdinputstylexxx#1{%
  \def\arg{#1}%
  \ifx\arg\worddistinct
    \gdef\kbdexamplefont{\ttsl}\gdef\kbdfont{\ttsl}%
  \else\ifx\arg\wordexample
    \gdef\kbdexamplefont{\ttsl}\gdef\kbdfont{\tt}%
  \else\ifx\arg\wordcode
    \gdef\kbdexamplefont{\tt}\gdef\kbdfont{\tt}%
  \fi\fi\fi
}
\def\worddistinct{distinct}
\def\wordexample{example}
\def\wordcode{code}

% Default is kbdinputdistinct.  (Too much of a hassle to call the macro,
% the catcodes are wrong for parsearg to work.)
\gdef\kbdexamplefont{\ttsl}\gdef\kbdfont{\ttsl}

\def\xkey{\key}
\def\kbdfoo#1#2#3\par{\def\one{#1}\def\three{#3}\def\threex{??}%
\ifx\one\xkey\ifx\threex\three \key{#2}%
\else{\tclose{\kbdfont\look}}\fi
\else{\tclose{\kbdfont\look}}\fi}

% @url.  Quotes do not seem necessary, so use \code.
\let\url=\code

% @uref (abbreviation for `urlref') takes an optional second argument
% specifying the text to display.  First (mandatory) arg is the url.
% Perhaps eventually put in a hypertex \special here.
% 
\def\uref#1{\urefxxx #1,,\finish}
\def\urefxxx#1,#2,#3\finish{%
  \setbox0 = \hbox{\ignorespaces #2}%
  \ifdim\wd0 > 0pt
    \unhbox0\ (\code{#1})%
  \else
    \code{#1}%
  \fi
}

% rms does not like the angle brackets --karl, 17may97.
% So now @email is just like @uref.
%\def\email#1{$\langle${\tt #1}$\rangle$}
\let\email=\uref

% 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
% argument is to make the input look right: @dmn{pt} instead of
% @dmn{}pt.
%
\def\dmn#1{\thinspace #1}

\def\kbd#1{\def\look{#1}\expandafter\kbdfoo\look??\par}

% @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
% Use of \lowercase was suggested.
\def\sc#1{{\smallcaps#1}}       % smallcaps font
\def\ii#1{{\it #1}}             % italic font

% @pounds{} is a sterling sign.
\def\pounds{{\it\$}}


\message{page headings,}

\newskip\titlepagetopglue \titlepagetopglue = 1.5in
\newskip\titlepagebottomglue \titlepagebottomglue = 2pc

% First the title page.  Must do @settitle before @titlepage.
\newif\ifseenauthor
\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
   \let\subtitlerm=\tenrm
% 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\authorfont{\authorrm \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{\titlefonts\rm ##1}
                    % print a rule at the page bottom also.
                    \finishedtitlepagefalse
                    \vskip4pt \hrule height 4pt width \hsize \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{}}
}

\def\Etitlepage{%
   \iffinishedtitlepage\else
      \finishtitlepage
   \fi
   % It is important to do the page break before ending the group,