texinfo.tex

使用libscsi做的一系列cdrom操作工具程序。包含cdwrite,cdflush,cdda三个程序

    \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\clearxxx#1{\global\expandafter\let\csname SET#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}

% 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
}

% We need to expand lots of \csname's, but we don't want to expand the
% control sequences after we've constructed them.
%
\def\nece#1{\expandafter\noexpand\csname#1\endcsname}

% @asis just yields its argument.  Used with @table, for example.
%
\def\asis#1{#1}

% @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}

% @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\nodezzz#1{\nodexxx [#1,]}
\def\nodexxx[#1,#2]{\gdef\lastnode{#1}}
\let\nwnode=\node
\let\lastnode=\relax

\def\donoderef{\ifx\lastnode\relax\else
\expandafter\expandafter\expandafter\setref{\lastnode}\fi
\global\let\lastnode=\relax}

\def\unnumbnoderef{\ifx\lastnode\relax\else
\expandafter\expandafter\expandafter\unnumbsetref{\lastnode}\fi
\global\let\lastnode=\relax}

\def\appendixnoderef{\ifx\lastnode\relax\else
\expandafter\expandafter\expandafter\appendixsetref{\lastnode}\fi
\global\let\lastnode=\relax}

\let\refill=\relax

% @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.
}

\outer\def\bye{\pagealignmacro\tracingstats=1\ptexend}

\def\inforef #1{\inforefzzz #1,,,,**}
\def\inforefzzz #1,#2,#3,#4**{\putwordSee{} \putwordInfo{} \putwordfile{} \file{\ignorespaces #3{}},
  node \samp{\ignorespaces#1{}}}

\def\macro#1{\begingroup\ignoresections\catcode`\#=6\def\macrotemp{#1}\parsearg\macroxxx}
\def\macroxxx#1#2 \end macro{%
\expandafter\gdef\macrotemp#1{#2}%
\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,}

% Font-change commands.

% Texinfo supports the sans serif font style, which plain TeX does not.
% So we set up a \sf analogous to plain's \rm, etc.
\newfam\sffam
\def\sf{\fam=\sffam \tensf}
\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
\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
\let\mainmagstep=\magstep1
\setfont\textrm\rmshape{12}{1000}
\setfont\texttt\ttshape{12}{1000}
\else
\setfont\textrm\rmshape{10}{\mainmagstep}
\setfont\texttt\ttshape{10}{\mainmagstep}
\fi
% 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.
\setfont\textbf\bfshape{10}{\mainmagstep}
\setfont\textit\itshape{10}{\mainmagstep}
\setfont\textsl\slshape{10}{\mainmagstep}
\setfont\textsf\sfshape{10}{\mainmagstep}
\setfont\textsc\scshape{10}{\mainmagstep}
\setfont\textttsl\ttslshape{10}{\mainmagstep}
\font\texti=cmmi10 scaled \mainmagstep
\font\textsy=cmsy10 scaled \mainmagstep

% A few fonts for @defun, etc.
\setfont\defbf\bxshape{10}{\magstep1} %was 1314
\setfont\deftt\ttshape{10}{\magstep1}
\def\df{\let\tentt=\deftt \let\tenbf = \defbf \bf}

% 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.
% Do not make many font distinctions in general in the index, since they
% aren't very useful.
\setfont\ninett\ttshape{9}{1000}
\setfont\indrm\rmshape{9}{1000}
\setfont\indit\slshape{9}{1000}
\let\indsl=\indit
\let\indtt=\ninett
\let\indttsl=\ninett
\let\indsf=\indrm
\let\indbf=\indrm
\setfont\indsc\scshape{10}{900}
\font\indi=cmmi9
\font\indsy=cmsy9

% Fonts for headings
\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{12}{\magstep2}
\let\chapbf=\chaprm
\setfont\chapsc\scbshape{10}{\magstep3}
\font\chapi=cmmi12 scaled \magstep2
\font\chapsy=cmsy10 scaled \magstep3

\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

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

% Fonts for title page:
\setfont\titlerm\rmbshape{12}{\magstep3}
\let\authorrm = \secrm

% 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\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}
\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}
\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}
\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}

% 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