diff options
Diffstat (limited to 'texinfo.tex')
| -rw-r--r-- | texinfo.tex | 221 |
1 files changed, 118 insertions, 103 deletions
diff --git a/texinfo.tex b/texinfo.tex index 8adc992..9652c77 100644 --- a/texinfo.tex +++ b/texinfo.tex @@ -147,11 +147,7 @@ % \onepageout takes a vbox as an argument. Note that \pagecontents % does insertions, but you have to call it yourself. \def\onepageout#1{% - \ifcropmarks - \hoffset = 0pt - \else - \hoffset = \normaloffset - \fi + \ifcropmarks \hoffset=0pt \else \hoffset=\normaloffset \fi % \ifodd\pageno \advance\hoffset by \bindingoffset \else \advance\hoffset by -\bindingoffset\fi @@ -171,17 +167,20 @@ \normalturnoffactive % \ in index entries must not stay \, e.g., if % the page break happens to be in the middle of an example. \shipout\vbox{% - \ifcropmarks - \vbox to \outervsize\bgroup - \hsize = \outerhsize - \vbox{\line{\ewtop\hfill\ewtop}}% - \nointerlineskip - \line{% - \vbox{\moveleft\cornerthick\nstop}% - \hfill - \vbox{\moveright\cornerthick\nstop}% - }% - \vskip\topandbottommargin + \ifcropmarks \vbox to \outervsize\bgroup + \hsize = \outerhsize + \line{\ewtop\hfil\ewtop}% + \nointerlineskip + \line{% + \vbox{\moveleft\cornerthick\nstop}% + \hfill + \vbox{\moveright\cornerthick\nstop}% + }% + \vskip\topandbottommargin + \line\bgroup + \hfil % center the page within the outer (page) hsize. + \ifodd\pageno\hskip\bindingoffset\fi + \vbox\bgroup \fi % \unvbox\headlinebox @@ -189,19 +188,21 @@ \unvbox\footlinebox % \ifcropmarks - \vskip\topandbottommargin plus1fill minus1fill - \boxmaxdepth = \cornerthick - \line{% - \vbox{\moveleft\cornerthick\nsbot}% - \hfill - \vbox{\moveright\cornerthick\nsbot}% - }% - \nointerlineskip - \vbox{\line{\ewbot\hfill\ewbot}}% - \egroup % \vbox from first cropmarks clause + \egroup % end of \vbox\bgroup + \hfil\egroup % end of (centering) \line\bgroup + \vskip\topandbottommargin plus1fill minus1fill + \boxmaxdepth = \cornerthick + \line{% + \vbox{\moveleft\cornerthick\nsbot}% + \hfill + \vbox{\moveright\cornerthick\nsbot}% + }% + \nointerlineskip + \line{\ewbot\hfil\ewbot}% + \egroup % \vbox from first cropmarks clause \fi - }% - }% + }% end of \shipout\vbox + }% end of group with \turnoffactive \advancepageno \ifnum\outputpenalty>-20000 \else\dosupereject\fi } @@ -219,7 +220,6 @@ \ifr@ggedbottom \kern-\dimen@ \vfil \fi} } -% % 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) @@ -2408,27 +2408,16 @@ width0pt\relax} \fi % 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 - +% @printindex causes a particular index (the ??s file) to get printed. +% It does not print any chapter heading (usually an @unnumbered). +% \def\printindex{\parsearg\doprintindex} - \def\doprintindex#1{\begingroup \dobreak \chapheadingskip{10000}% % \indexfonts \rm \tolerance = 9500 \indexbreaks - \def\indexbackslash{\rawbackslashxx}% - % Index files are almost Texinfo source, but we use \ as the escape - % character. It would be better to use @, but that's too big a change - % to make right now. - \catcode`\\ = 0 - \catcode`\@ = 11 - \escapechar = `\\ - \begindoublecolumns % % See if the index file exists and is nonempty. \openin 1 \jobname.#1s @@ -2447,11 +2436,19 @@ width0pt\relax} \fi \ifeof 1 (Index is empty) \else + % Index files are almost Texinfo source, but we use \ as the escape + % character. It would be better to use @, but that's too big a change + % to make right now. + \def\indexbackslash{\rawbackslashxx}% + \catcode`\\ = 0 + \catcode`\@ = 11 + \escapechar = `\\ + \begindoublecolumns \input \jobname.#1s + \enddoublecolumns \fi \fi \closein 1 - \enddoublecolumns \endgroup} % These macros are used by the sorted index file itself. @@ -2553,24 +2550,39 @@ width0pt\relax} \fi \def\begindoublecolumns{\begingroup % ended by \enddoublecolumns % Grab any single-column material above us. - \output = {\global\setbox\partialpage - =\vbox{\unvbox255\kern -\topskip \kern \baselineskip}}% + \output = {\global\setbox\partialpage = \vbox{% + % + % Here is a possibility not foreseen in manmac: if we accumulate a + % whole lot of material, we might end up calling this \output + % routine twice in a row (see the doublecol-lose test, which is + % essentially a couple of indexes with @setchapternewpage off). In + % that case, we must prevent the second \partialpage from + % simply overwriting the first, causing us to lose the page. + % This will preserve it until a real output routine can ship it + % out. Generally, \partialpage will be empty when this runs and + % this will be a no-op. + \unvbox\partialpage + % + % Unvbox the main output page. + \unvbox255 + \kern-\topskip \kern\baselineskip + }}% \eject % - % Now switch to the double-column output routine. - \output={\doublecolumnout}% + % Use the double-column output routine for subsequent pages. + \output = {\doublecolumnout}% % % Change the page size parameters. We could do this once outside this % routine, in each of @smallbook, @afourpaper, and the default 8.5x11 % format, but then we repeat the same computation. Repeating a couple % of assignments once per index is clearly meaningless for the - % execution time, so we may as well do it once. + % execution time, so we may as well do it in one place. % % 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. + % 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) @@ -2591,100 +2603,103 @@ width0pt\relax} \fi % (undoubled) page height minus any material left over from the % previous page. \dimen@=\pageheight \advance\dimen@ by-\ht\partialpage - % box0 will be the left-hand column, box1 the right. + % box0 will be the left-hand column, box2 the right. \setbox0=\vsplit255 to\dimen@ \setbox2=\vsplit255 to\dimen@ \onepageout\pagesofar - \unvbox255 \penalty\outputpenalty + \unvbox255 + \penalty\outputpenalty } \def\pagesofar{% - % The contents of the output page -- any previous material, + % Re-output 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 + \output = {\balancecolumns}\eject % split what we have + \endgroup % started in \begindoublecolumns + % % Back to normal single-column typesetting, but take account of the % fact that we just accumulated some stuff on the output page. - \pagegoal=\vsize + \pagegoal = \vsize } \def\balancecolumns{% - % Called on the last page of the double column material. - \setbox0=\vbox{\unvbox255}% + % Called at the end of the double column material. + \setbox0 = \vbox{\unvbox255}% \dimen@ = \ht0 \advance\dimen@ by \topskip \advance\dimen@ by-\baselineskip \divide\dimen@ by 2 \splittopskip = \topskip % Loop until we get a decent breakpoint. - {\vbadness=10000 \loop \global\setbox3=\copy0 + {\vbadness=10000 \loop + \global\setbox3=\copy0 \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}% \pagesofar } -\catcode `\@=\other +\catcode`\@ = \other \message{sectioning,} % Define chapters, sections, etc. -\newcount \chapno -\newcount \secno \secno=0 -\newcount \subsecno \subsecno=0 -\newcount \subsubsecno \subsubsecno=0 +\newcount\chapno +\newcount\secno \secno=0 +\newcount\subsecno \subsecno=0 +\newcount\subsubsecno \subsubsecno=0 % This counter is funny since it counts through charcodes of letters A, B, ... -\newcount \appendixno \appendixno = `\@ +\newcount\appendixno \appendixno = `\@ \def\appendixletter{\char\the\appendixno} -\newwrite \contentsfile +\newwrite\contentsfile % This is called from \setfilename. -\def\opencontents{\openout \contentsfile = \jobname.toc} +\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\seccheck#1{\ifnum \pageno<0 + \errmessage{@#1 not allowed after generating table of contents}% +\fi} \def\chapternofonts{% -\let\rawbackslash=\relax% -\let\frenchspacing=\relax% -\def\result{\realbackslash result} -\def\equiv{\realbackslash equiv} -\def\expansion{\realbackslash expansion} -\def\print{\realbackslash print} -\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}} + \let\rawbackslash=\relax + \let\frenchspacing=\relax + \def\result{\realbackslash result}% + \def\equiv{\realbackslash equiv}% + \def\expansion{\realbackslash expansion}% + \def\print{\realbackslash print}% + \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}}% } \newcount\absseclevel % used to calculate proper heading level |