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Diffstat (limited to 'texinfo/texinfo.tex')
| -rw-r--r-- | texinfo/texinfo.tex | 5279 |
1 files changed, 2761 insertions, 2518 deletions
diff --git a/texinfo/texinfo.tex b/texinfo/texinfo.tex index 555a077..6f322ea 100644 --- a/texinfo/texinfo.tex +++ b/texinfo/texinfo.tex @@ -3,10 +3,11 @@ % Load plain if necessary, i.e., if running under initex. \expandafter\ifx\csname fmtname\endcsname\relax\input plain\fi % -\def\texinfoversion{2003-02-03.16} +\def\texinfoversion{2004-02-19.09} % % Copyright (C) 1985, 1986, 1988, 1990, 1991, 1992, 1993, 1994, 1995, -% 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc. +% 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004 Free Software +% Foundation, Inc. % % 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 @@ -23,23 +24,18 @@ % to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, % Boston, MA 02111-1307, 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! -% +% As a special exception, when this file is read by TeX when processing +% a Texinfo source document, you may use the result without +% restriction. (This has been our intent since Texinfo was invented.) +% % Please try the latest version of texinfo.tex before submitting bug % reports; you can get the latest version from: -% ftp://ftp.gnu.org/gnu/texinfo/texinfo.tex -% (and all GNU mirrors, see http://www.gnu.org/order/ftp.html) +% http://www.gnu.org/software/texinfo/ (the Texinfo home page), or % ftp://tug.org/tex/texinfo.tex -% (and all CTAN mirrors, see http://www.ctan.org), -% and /home/gd/gnu/doc/texinfo.tex on the GNU machines. -% -% The GNU Texinfo home page is http://www.gnu.org/software/texinfo. -% -% The texinfo.tex in any given Texinfo distribution could well be out +% (and all CTAN mirrors, see http://www.ctan.org). +% The texinfo.tex in any given distribution could well be out % of date, so if that's what you're using, please check. -% +% % Send bug reports to bug-texinfo@gnu.org. Please include including a % complete document in each bug report with which we can reproduce the % problem. Patches are, of course, greatly appreciated. @@ -55,10 +51,13 @@ % The extra TeX runs get the cross-reference information correct. % Sometimes one run after texindex suffices, and sometimes you need more % than two; texi2dvi does it as many times as necessary. -% +% % It is possible to adapt texinfo.tex for other languages, to some % extent. You can get the existing language-specific files from the % full Texinfo distribution. +% +% The GNU Texinfo home page is http://www.gnu.org/software/texinfo. + \message{Loading texinfo [version \texinfoversion]:} @@ -71,11 +70,11 @@ \message{Basics,} \chardef\other=12 -% We never want plain's outer \+ definition in Texinfo. +% We never want plain's \outer definition of \+ in Texinfo. % For @tex, we can use \tabalign. \let\+ = \relax -% Save some parts of plain tex whose names we will redefine. +% Save some plain tex macros whose names we will redefine. \let\ptexb=\b \let\ptexbullet=\bullet \let\ptexc=\c @@ -85,13 +84,18 @@ \let\ptexend=\end \let\ptexequiv=\equiv \let\ptexexclam=\! +\let\ptexfootnote=\footnote \let\ptexgtr=> \let\ptexhat=^ \let\ptexi=\i +\let\ptexindent=\indent +\let\ptexnoindent=\noindent +\let\ptexinsert=\insert \let\ptexlbrace=\{ \let\ptexless=< \let\ptexplus=+ \let\ptexrbrace=\} +\let\ptexslash=\/ \let\ptexstar=\* \let\ptext=\t @@ -99,6 +103,15 @@ % starts a new line in the output. \newlinechar = `^^J +% 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 % Pre-3.0. +\else + \def\linenumber{l.\the\inputlineno:\space} +\fi + % Set up fixed words for English if not already set. \ifx\putwordAppendix\undefined \gdef\putwordAppendix{Appendix}\fi \ifx\putwordChapter\undefined \gdef\putwordChapter{Chapter}\fi @@ -137,42 +150,79 @@ \ifx\putwordDefspec\undefined \gdef\putwordDefspec{Special Form}\fi \ifx\putwordDefvar\undefined \gdef\putwordDefvar{Variable}\fi \ifx\putwordDefopt\undefined \gdef\putwordDefopt{User Option}\fi -\ifx\putwordDeftypevar\undefined\gdef\putwordDeftypevar{Variable}\fi \ifx\putwordDeffunc\undefined \gdef\putwordDeffunc{Function}\fi -\ifx\putwordDeftypefun\undefined\gdef\putwordDeftypefun{Function}\fi % In some macros, we cannot use the `\? notation---the left quote is % in some cases the escape char. \chardef\colonChar = `\: \chardef\commaChar = `\, \chardef\dotChar = `\. -\chardef\equalChar = `\= \chardef\exclamChar= `\! \chardef\questChar = `\? \chardef\semiChar = `\; -\chardef\spaceChar = `\ % \chardef\underChar = `\_ +\chardef\spaceChar = `\ % +\chardef\spacecat = 10 +\def\spaceisspace{\catcode\spaceChar=\spacecat} + % Ignore a token. % \def\gobble#1{} -% True if #1 is the empty string, i.e., called like `\ifempty{}'. -% -\def\ifempty#1{\ifemptyx #1\emptymarkA\emptymarkB}% -\def\ifemptyx#1#2\emptymarkB{\ifx #1\emptymarkA}% +% The following is used inside several \edef's. +\def\makecsname#1{\expandafter\noexpand\csname#1\endcsname} % Hyphenation fixes. -\hyphenation{ap-pen-dix} -\hyphenation{mini-buf-fer mini-buf-fers} -\hyphenation{eshell} -\hyphenation{white-space} +\hyphenation{ + Flor-i-da Ghost-script Ghost-view Mac-OS ap-pen-dix bit-map bit-maps + data-base data-bases eshell fall-ing half-way long-est man-u-script + man-u-scripts mini-buf-fer mini-buf-fers over-view par-a-digm + par-a-digms rec-tan-gu-lar ro-bot-ics se-vere-ly set-up spa-ces + stand-alone strong-est time-stamp time-stamps which-ever white-space + wide-spread wrap-around +} % Margin to add to right of even pages, to left of odd pages. \newdimen\bindingoffset \newdimen\normaloffset \newdimen\pagewidth \newdimen\pageheight +% 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} + +% @| 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 + }% + }% +} + % Sometimes it is convenient to have everything in the transcript file % and nothing on the terminal. We don't just call \tracingall here, % since that produces some useless output on the terminal. We also make @@ -197,12 +247,12 @@ \tracingassigns1 \fi \tracingcommands3 % 3 gives us more in etex - \errorcontextlines\maxdimen + \errorcontextlines16 }% % add check for \lastpenalty to plain's definitions. If the last thing % we did was a \nobreak, we don't want to insert more space. -% +% \def\smallbreak{\ifnum\lastpenalty<10000\par\ifdim\lastskip<\smallskipamount \removelastskip\penalty-50\smallskip\fi\fi} \def\medbreak{\ifnum\lastpenalty<10000\par\ifdim\lastskip<\medskipamount @@ -255,7 +305,7 @@ % the page break happens to be in the middle of an example. \shipout\vbox{% % Do this early so pdf references go to the beginning of the page. - \ifpdfmakepagedest \pdfmkdest{\the\pageno} \fi + \ifpdfmakepagedest \pdfdest name{\the\pageno} xyz\fi % \ifcropmarks \vbox to \outervsize\bgroup \hsize = \outerhsize @@ -336,132 +386,162 @@ % the input line (except we remove a trailing comment). #1 should be a % macro which expects an ordinary undelimited TeX argument. % -\def\parsearg#1{% - \let\next = #1% +\def\parsearg{\parseargusing{}} +\def\parseargusing#1#2{% + \def\next{#2}% \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{% - % \obeyedspace is defined far below, after the definition of \sepspaces. - \ifx\obeyedspace\temp - \expandafter\parseargdiscardspace - \else - \expandafter\parseargline - \fi + \spaceisspace + #1% + \parseargline\empty% Insert the \empty token, see \finishparsearg below. } -% Remove a single space (as the delimiter token to the macro call). -{\obeyspaces % - \gdef\parseargdiscardspace {\futurelet\temp\parseargx}} - {\obeylines % \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}% + \argremovecomment #1\comment\ArgTerm% }% } -% 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}} +% First remove any @comment, then any @c comment. +\def\argremovecomment#1\comment#2\ArgTerm{\argremovec #1\c\ArgTerm} +\def\argremovec#1\c#2\ArgTerm{\argcheckspaces#1\^^M\ArgTerm} -% \argremovec{,omment} might leave us with trailing spaces, though; e.g., +% Each occurence of `\^^M' or `<space>\^^M' is replaced by a single space. +% +% \argremovec might leave us with trailing space, 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 +% This space token undergoes the same procedure and is eventually removed +% by \finishparsearg. +% +\def\argcheckspaces#1\^^M{\argcheckspacesX#1\^^M \^^M} +\def\argcheckspacesX#1 \^^M{\argcheckspacesY#1\^^M} +\def\argcheckspacesY#1\^^M#2\^^M#3\ArgTerm{% + \def\temp{#3}% + \ifx\temp\empty + % We cannot use \next here, as it holds the macro to run; + % thus we reuse \temp. + \let\temp\finishparsearg + \else + \let\temp\argcheckspaces + \fi + % Put the space token in: + \temp#1 #3\ArgTerm } -% Change the active space to expand to nothing. +% If a _delimited_ argument is enclosed in braces, they get stripped; so +% to get _exactly_ the rest of the line, we had to prevent such situation. +% We prepended an \empty token at the very beginning and we expand it now, +% just before passing the control to \next. +% (Similarily, we have to think about #3 of \argcheckspacesY above: it is +% either the null string, or it ends with \^^M---thus there is no danger +% that a pair of braces would be stripped. % -\begingroup +% But first, we have to remove the trailing space token. +% +\def\finishparsearg#1 \ArgTerm{\expandafter\next\expandafter{#1}} + +% \parseargdef\foo{...} +% is roughly equivalent to +% \def\foo{\parsearg\Xfoo} +% \def\Xfoo#1{...} +% +% Actually, I use \csname\string\foo\endcsname, ie. \\foo, as it is my +% favourite TeX trick. --kasal, 16nov03 + +\def\parseargdef#1{% + \expandafter \doparseargdef \csname\string#1\endcsname #1% +} +\def\doparseargdef#1#2{% + \def#2{\parsearg#1}% + \def#1##1% +} + +% Several utility definitions with active space: +{ \obeyspaces - \gdef\ignoreactivespaces{\obeyspaces\let =\empty} -\endgroup + \gdef\obeyedspace{ } + + % Make each space character in the input produce a normal interword + % space in the output. Don't allow a line break at this space, as this + % is used only in environments like @example, where each line of input + % should produce a line of output anyway. + % + \gdef\sepspaces{\obeyspaces\let =\tie} + + % 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 \ ). + \gdef\unsepspaces{\let =\space} +} \def\flushcr{\ifx\par\lisppar \def\next##1{}\else \let\next=\relax \fi \next} -%% 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; press RETURN to continue} -\endgroup\fi} % This is not perfect, but it should reduce lossage +% Define the framework for environments in texinfo.tex. It's used like this: +% +% \envdef\foo{...} +% \def\Efoo{...} +% +% It's the responsibility of \envdef to insert \begingroup before the +% actual body; @end closes the group after calling \Efoo. \envdef also +% defines \thisenv, so the current environment is known; @end checks +% whether the environment name matches. The \checkenv macro can also be +% used to check whether the current environment is the one expected. +% +% Non-false conditionals (@iftex, @ifset) don't fit into this, so they +% are not treated as enviroments; they don't open a group. (The +% implementation of @end takes care not to call \endgroup in this +% special case.) -% @begin foo is the same as @foo, for now. -\newhelp\EMsimple{Press RETURN to continue.} -\outer\def\begin{\parsearg\beginxxx} +% At runtime, environments start with this: +\def\startenvironment#1{\begingroup\def\thisenv{#1}} +% initialize +\let\thisenv\empty -\def\beginxxx #1{% -\expandafter\ifx\csname #1\endcsname\relax -{\errhelp=\EMsimple \errmessage{Undefined command @begin #1}}\else -\csname #1\endcsname\fi} +% ... but they get defined via ``\envdef\foo{...}'': +\long\def\envdef#1#2{\def#1{\startenvironment#1#2}} +\def\envparseargdef#1#2{\parseargdef#1{\startenvironment#1#2}} -% @end foo executes the definition of \Efoo. -% -\def\end{\parsearg\endxxx} -\def\endxxx #1{% - \removeactivespaces{#1}% - \edef\endthing{\the\toks0}% - % - \expandafter\ifx\csname E\endthing\endcsname\relax - \expandafter\ifx\csname \endthing\endcsname\relax - % There's no \foo, i.e., no ``environment'' foo. - \errhelp = \EMsimple - \errmessage{Undefined command `@end \endthing'}% - \else - \unmatchedenderror\endthing - \fi +% Check whether we're in the right environment: +\def\checkenv#1{% + \def\temp{#1}% + \ifx\thisenv\temp \else - % Everything's ok; the right environment has been started. - \csname E\endthing\endcsname + \badenverr \fi } -% There is an environment #1, but it hasn't been started. Give an error. -% -\def\unmatchedenderror#1{% +% Evironment mismatch, #1 expected: +\def\badenverr{% \errhelp = \EMsimple - \errmessage{This `@end #1' doesn't have a matching `@#1'}% + \errmessage{This command can appear only \inenvironment\temp, + not \inenvironment\thisenv}% +} +\def\inenvironment#1{% + \ifx#1\empty + out of any environment% + \else + in environment \expandafter\string#1% + \fi } -% Define the control sequence \E#1 to give an unmatched @end error. +% @end foo executes the definition of \Efoo. +% But first, it executes a specialized version of \checkenv % -\def\defineunmatchedend#1{% - \expandafter\def\csname E#1\endcsname{\unmatchedenderror{#1}}% +\parseargdef\end{% + \if 1\csname iscond.#1\endcsname + \else + % The general wording of \badenverr may not be ideal, but... --kasal, 06nov03 + \expandafter\checkenv\csname#1\endcsname + \csname E#1\endcsname + \endgroup + \fi } +\newhelp\EMsimple{Press RETURN to continue.} + %% Simple single-character @ commands @@ -493,6 +573,9 @@ !gdef!rbraceatcmd[@}]% !endgroup +% @comma{} to avoid , parsing problems. +\let\comma = , + % Accents: @, @dotaccent @ringaccent @ubaraccent @udotaccent % Others are defined by plain TeX: @` @' @" @^ @~ @= @u @v @H. \let\, = \c @@ -502,10 +585,12 @@ \let\ubaraccent = \b \let\udotaccent = \d -% Other special characters: @questiondown @exclamdown +% Other special characters: @questiondown @exclamdown @ordf @ordm % Plain TeX defines: @AA @AE @O @OE @L (plus lowercase versions) @ss. \def\questiondown{?`} \def\exclamdown{!`} +\def\ordf{\leavevmode\raise1ex\hbox{\selectfonts\lllsize \underbar{a}}} +\def\ordm{\leavevmode\raise1ex\hbox{\selectfonts\lllsize \underbar{o}}} % Dotless i and dotless j, used for accents. \def\imacro{i} @@ -518,6 +603,25 @@ \fi\fi } +% The \TeX{} logo, as in plain, but resetting the spacing so that a +% period following counts as ending a sentence. (Idea found in latex.) +% +\edef\TeX{\TeX \spacefactor=3000 } + +% @LaTeX{} logo. Not quite the same results as the definition in +% latex.ltx, since we use a different font for the raised A; it's most +% convenient for us to use an explicitly smaller font, rather than using +% the \scriptstyle font (since we don't reset \scriptstyle and +% \scriptscriptstyle). +% +\def\LaTeX{% + L\kern-.36em + {\setbox0=\hbox{T}% + \vbox to \ht0{\hbox{\selectfonts\lllsize A}\vss}}% + \kern-.15em + \TeX +} + % 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 @@ -536,6 +640,9 @@ % @* forces a line break. \def\*{\hfil\break\hbox{}\ignorespaces} +% @/ allows a line break. +\let\/=\allowbreak + % @. is an end-of-sentence period. \def\.{.\spacefactor=3000 } @@ -564,63 +671,18 @@ % explicit \vfill so that the extra space is at the bottom. The % threshold for doing this is if the group is more than \vfilllimit % percent of a page (\vfilllimit can be changed inside of @tex). -% +% \newbox\groupbox \def\vfilllimit{0.7} % -\def\group{\begingroup - \ifnum\catcode13=\active \else +\envdef\group{% + \ifnum\catcode`\^^M=\active \else \errhelp = \groupinvalidhelp \errmessage{@group invalid in context where filling is enabled}% \fi - % - % 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. - % \dimen0 is the vertical size of the group's box. - \dimen0 = \ht\groupbox \advance\dimen0 by \dp\groupbox - % \dimen2 is how much space is left on the page (more or less). - \dimen2 = \pageheight \advance\dimen2 by -\pagetotal - % if the group doesn't fit on the current page, and it's a big big - % group, force a page break. - \ifdim \dimen0 > \dimen2 - \ifdim \pagetotal < \vfilllimit\pageheight - \page - \fi - \fi - \copy\groupbox - \endgroup % End the \group. - }% + \startsavinginserts % \setbox\groupbox = \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 @@ -630,6 +692,32 @@ \comment } % +% The \vtop 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. Thus, space below is not quite equal to space +% above. But it's pretty close. +\def\Egroup{% + % To get correct interline space between the last line of the group + % and the first line afterwards, we have to propagate \prevdepth. + \endgraf % Not \par, as it may have been set to \lisppar. + \global\dimen1 = \prevdepth + \egroup % End the \vtop. + % \dimen0 is the vertical size of the group's box. + \dimen0 = \ht\groupbox \advance\dimen0 by \dp\groupbox + % \dimen2 is how much space is left on the page (more or less). + \dimen2 = \pageheight \advance\dimen2 by -\pagetotal + % if the group doesn't fit on the current page, and it's a big big + % group, force a page break. + \ifdim \dimen0 > \dimen2 + \ifdim \pagetotal < \vfilllimit\pageheight + \page + \fi + \fi + \box\groupbox + \prevdepth = \dimen1 + \checkinserts +} +% % TeX puts in an \escapechar (i.e., `@') at the beginning of the help % message, so this ends up printing `@group can only ...'. % @@ -642,10 +730,8 @@ where each line of input produces a line of output.} \newdimen\mil \mil=0.001in -\def\need{\parsearg\needx} - % Old definition--didn't work. -%\def\needx #1{\par % +%\parseargdef\need{\par % %% This method tries to make TeX break the page naturally %% if the depth of the box does not fit. %{\baselineskip=0pt% @@ -653,7 +739,7 @@ where each line of input produces a line of output.} %\prevdepth=-1000pt %}} -\def\needx#1{% +\parseargdef\need{% % Ensure vertical mode, so we don't make a big box in the middle of a % paragraph. \par @@ -692,37 +778,11 @@ where each line of input produces a line of output.} \fi } -% @br forces paragraph break +% @br forces paragraph break (and is undocumented). \let\br = \par -% @dots{} output an ellipsis using the current font. -% We do .5em per period so that it has the same spacing in a typewriter -% font as three actual period characters. -% -\def\dots{% - \leavevmode - \hbox to 1.5em{% - \hskip 0pt plus 0.25fil minus 0.25fil - .\hss.\hss.% - \hskip 0pt plus 0.5fil minus 0.5fil - }% -} - -% @enddots{} is an end-of-sentence ellipsis. -% -\def\enddots{% - \leavevmode - \hbox to 2em{% - \hskip 0pt plus 0.25fil minus 0.25fil - .\hss.\hss.\hss.% - \hskip 0pt plus 0.5fil minus 0.5fil - }% - \spacefactor=3000 -} - - -% @page forces the start of a new page +% @page forces the start of a new page. % \def\page{\par\vfill\supereject} @@ -734,13 +794,11 @@ where each line of input produces a line of output.} \newskip\exdentamount % This defn is used inside fill environments such as @defun. -\def\exdent{\parsearg\exdentyyy} -\def\exdentyyy #1{{\hfil\break\hbox{\kern -\exdentamount{\rm#1}}\hfil\break}} +\parseargdef\exdent{\hfil\break\hbox{\kern -\exdentamount{\rm#1}}\hfil\break} % This defn is used inside nofill environments such as @example. -\def\nofillexdent{\parsearg\nofillexdentyyy} -\def\nofillexdentyyy #1{{\advance \leftskip by -\exdentamount -\leftline{\hskip\leftskip{\rm#1}}}} +\parseargdef\nofillexdent{{\advance \leftskip by -\exdentamount + \leftline{\hskip\leftskip{\rm#1}}}} % @inmargin{WHICH}{TEXT} puts TEXT in the WHICH margin next to the current % paragraph. For more general purposes, use the \margin insertion @@ -771,10 +829,10 @@ where each line of input produces a line of output.} % @inmargin{TEXT [, RIGHT-TEXT]} % (if RIGHT-TEXT is given, use TEXT for left page, RIGHT-TEXT for right; % else use TEXT for both). -% +% \def\inmargin#1{\parseinmargin #1,,\finish} \def\parseinmargin#1,#2,#3\finish{% not perfect, but better than nothing. - \setbox0 = \hbox{\ignorespaces #2}% + \setbox0 = \hbox{\ignorespaces #2}% \ifdim\wd0 > 0pt \def\lefttext{#1}% have both texts \def\righttext{#2}% @@ -792,8 +850,19 @@ where each line of input produces a line of output.} } % @include file insert text of that file as input. -% Allow normal characters that we make active in the argument (a file name). -\def\include{\begingroup +% +\def\include{\parseargusing\filenamecatcodes\includezzz} +\def\includezzz#1{% + \pushthisfilestack + \def\thisfile{#1}% + {% + \makevalueexpandable + \def\temp{\input #1 }% + \expandafter + }\temp + \popthisfilestack +} +\def\filenamecatcodes{% \catcode`\\=\other \catcode`~=\other \catcode`^=\other @@ -802,33 +871,50 @@ where each line of input produces a line of output.} \catcode`<=\other \catcode`>=\other \catcode`+=\other - \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}% - \let\value=\expandablevalue - \input\thisfile -\endgroup} + \catcode`-=\other +} + +\def\pushthisfilestack{% + \expandafter\pushthisfilestackX\popthisfilestack\StackTerm +} +\def\pushthisfilestackX{% + \expandafter\pushthisfilestackY\thisfile\StackTerm +} +\def\pushthisfilestackY #1\StackTerm #2\StackTerm {% + \gdef\popthisfilestack{\gdef\thisfile{#1}\gdef\popthisfilestack{#2}}% +} + +\def\popthisfilestack{\errthisfilestackempty} +\def\errthisfilestackempty{\errmessage{Internal error: + the stack of filenames is empty.}} \def\thisfile{} % @center line % outputs that line, centered. % -\def\center{\parsearg\docenter} -\def\docenter#1{{% - \ifhmode \hfil\break \fi - \advance\hsize by -\leftskip - \advance\hsize by -\rightskip - \line{\hfil \ignorespaces#1\unskip \hfil}% - \ifhmode \break \fi -}} +\parseargdef\center{% + \ifhmode + \let\next\centerH + \else + \let\next\centerV + \fi + \next{\hfil \ignorespaces#1\unskip \hfil}% +} +\def\centerH#1{% + {% + \hfil\break + \advance\hsize by -\leftskip + \advance\hsize by -\rightskip + \line{#1}% + \break + }% +} +\def\centerV#1{\line{\kern\leftskip #1\kern\rightskip}} % @sp n outputs n lines of vertical space -\def\sp{\parsearg\spxxx} -\def\spxxx #1{\vskip #1\baselineskip} +\parseargdef\sp{\vskip #1\baselineskip} % @comment ...line which is ignored... % @c is the same as @comment @@ -843,13 +929,13 @@ where each line of input produces a line of output.} % @paragraphindent NCHARS % We'll use ems for NCHARS, close enough. -% We cannot implement @paragraphindent asis, though. -% +% NCHARS can also be the word `asis' or `none'. +% We cannot feasibly implement @paragraphindent asis, though. +% \def\asisword{asis} % no translation, these are keywords \def\noneword{none} % -\def\paragraphindent{\parsearg\doparagraphindent} -\def\doparagraphindent#1{% +\parseargdef\paragraphindent{% \def\temp{#1}% \ifx\temp\asisword \else @@ -866,8 +952,7 @@ where each line of input produces a line of output.} % We'll use ems for NCHARS like @paragraphindent. % It seems @exampleindent asis isn't necessary, but % I preserve it to make it similar to @paragraphindent. -\def\exampleindent{\parsearg\doexampleindent} -\def\doexampleindent#1{% +\parseargdef\exampleindent{% \def\temp{#1}% \ifx\temp\asisword \else @@ -879,48 +964,97 @@ where each line of input produces a line of output.} \fi } +% @firstparagraphindent WORD +% If WORD is `none', then suppress indentation of the first paragraph +% after a section heading. If WORD is `insert', then do indent at such +% paragraphs. +% +% The paragraph indentation is suppressed or not by calling +% \suppressfirstparagraphindent, which the sectioning commands do. +% We switch the definition of this back and forth according to WORD. +% By default, we suppress indentation. +% +\def\suppressfirstparagraphindent{\dosuppressfirstparagraphindent} +\def\insertword{insert} +% +\parseargdef\firstparagraphindent{% + \def\temp{#1}% + \ifx\temp\noneword + \let\suppressfirstparagraphindent = \dosuppressfirstparagraphindent + \else\ifx\temp\insertword + \let\suppressfirstparagraphindent = \relax + \else + \errhelp = \EMsimple + \errmessage{Unknown @firstparagraphindent option `\temp'}% + \fi\fi +} + +% Here is how we actually suppress indentation. Redefine \everypar to +% \kern backwards by \parindent, and then reset itself to empty. +% +% We also make \indent itself not actually do anything until the next +% paragraph. +% +\gdef\dosuppressfirstparagraphindent{% + \gdef\indent{% + \restorefirstparagraphindent + \indent + }% + \gdef\noindent{% + \restorefirstparagraphindent + \noindent + }% + \global\everypar = {% + \kern -\parindent + \restorefirstparagraphindent + }% +} + +\gdef\restorefirstparagraphindent{% + \global \let \indent = \ptexindent + \global \let \noindent = \ptexnoindent + \global \everypar = {}% +} + + % @asis just yields its argument. Used with @table, for example. % \def\asis#1{#1} % @math outputs its argument in math mode. -% We don't use $'s directly in the definition of \math because we need -% to set catcodes according to plain TeX first, to allow for subscripts, -% superscripts, special math chars, etc. -% -\let\implicitmath = $%$ font-lock fix % % One complication: _ usually means subscripts, but it could also mean % an actual _ character, as in @math{@var{some_variable} + 1}. So make -% _ within @math be active (mathcode "8000), and distinguish by seeing -% if the current family is \slfam, which is what @var uses. -% -{\catcode\underChar = \active -\gdef\mathunderscore{% - \catcode\underChar=\active - \def_{\ifnum\fam=\slfam \_\else\sb\fi}% -}} -% +% _ active, and distinguish by seeing if the current family is \slfam, +% which is what @var uses. +{ + \catcode\underChar = \active + \gdef\mathunderscore{% + \catcode\underChar=\active + \def_{\ifnum\fam=\slfam \_\else\sb\fi}% + } +} % Another complication: we want \\ (and @\) to output a \ character. % FYI, plain.tex uses \\ as a temporary control sequence (why?), but % this is not advertised and we don't care. Texinfo does not % otherwise define @\. -% +% % The \mathchar is class=0=ordinary, family=7=ttfam, position=5C=\. \def\mathbackslash{\ifnum\fam=\ttfam \mathchar"075C \else\backslash \fi} % \def\math{% \tex - \mathcode`\_="8000 \mathunderscore + \mathunderscore \let\\ = \mathbackslash \mathactive - \implicitmath\finishmath} -\def\finishmath#1{#1\implicitmath\Etex} + $\finishmath +} +\def\finishmath#1{#1$\endgroup} % Close the group opened by \tex. % Some active characters (such as <) are spaced differently in math. -% We have to reset their definitions in case the @math was an -% argument to a command which set the catcodes (such as @item or @section). -% +% We have to reset their definitions in case the @math was an argument +% to a command which sets the catcodes (such as @item or @section). +% { \catcode`^ = \active \catcode`< = \active @@ -935,8 +1069,33 @@ where each line of input produces a line of output.} } % @bullet and @minus need the same treatment as @math, just above. -\def\bullet{\implicitmath\ptexbullet\implicitmath} -\def\minus{\implicitmath-\implicitmath} +\def\bullet{$\ptexbullet$} +\def\minus{$-$} + +% @dots{} outputs an ellipsis using the current font. +% We do .5em per period so that it has the same spacing in a typewriter +% font as three actual period characters. +% +\def\dots{% + \leavevmode + \hbox to 1.5em{% + \hskip 0pt plus 0.25fil + .\hfil.\hfil.% + \hskip 0pt plus 0.5fil + }% +} + +% @enddots{} is an end-of-sentence ellipsis. +% +\def\enddots{% + \dots + \spacefactor=3000 +} + +% @comma{} is so commas can be inserted into text without messing up +% Texinfo's parsing. +% +\let\comma = , % @refill is a no-op. \let\refill=\relax @@ -952,20 +1111,20 @@ where each line of input produces a line of output.} % 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{% + \fixbackslash % Turn off hack to swallow `\input texinfo'. \iflinks - \readauxfile + \tryauxfile + % Open the new aux file. TeX will close it automatically at exit. + \immediate\openout\auxfile=\jobname.aux \fi % \openindices needs to do some work in any case. \openindices - \fixbackslash % Turn off hack to swallow `\input texinfo'. - \global\let\setfilename=\comment % Ignore extra @setfilename cmds. + \let\setfilename=\comment % Ignore extra @setfilename cmds. % % If texinfo.cnf is present on the system, read it. % Useful for site-wide @afourpaper, etc. - % Just to be on the safe side, close the input stream before the \input. \openin 1 texinfo.cnf - \ifeof1 \let\temp=\relax \else \def\temp{\input texinfo.cnf }\fi - \closein1 - \temp + \ifeof 1 \else \input texinfo.cnf \fi + \closein 1 % \comment % Ignore the actual filename. } @@ -1012,6 +1171,7 @@ where each line of input produces a line of output.} \pdftrue \pdfoutput = 1 \input pdfcolor + \pdfcatalog{/PageMode /UseOutlines}% \def\dopdfimage#1#2#3{% \def\imagewidth{#2}% \def\imageheight{#3}% @@ -1032,7 +1192,13 @@ where each line of input produces a line of output.} \ifnum\pdftexversion < 14 \else \pdfrefximage \pdflastximage \fi} - \def\pdfmkdest#1{{\normalturnoffactive \pdfdest name{#1} xyz}} + \def\pdfmkdest#1{{% + % We have to set dummies so commands such as @code in a section title + % aren't expanded. + \atdummies + \normalturnoffactive + \pdfdest name{#1} xyz% + }} \def\pdfmkpgn#1{#1} \let\linkcolor = \Blue % was Cyan, but that seems light? \def\endlink{\Black\pdfendlink} @@ -1041,48 +1207,94 @@ where each line of input produces a line of output.} \def\expnumber#1{\expandafter\ifx\csname#1\endcsname\relax 0% \else \csname#1\endcsname \fi} \def\advancenumber#1{\tempnum=\expnumber{#1}\relax - \advance\tempnum by1 + \advance\tempnum by 1 \expandafter\xdef\csname#1\endcsname{\the\tempnum}} - \def\pdfmakeoutlines{{% - \openin 1 \jobname.toc - \ifeof 1\else\begingroup - \closein 1 - % Thanh's hack / proper braces in bookmarks + % + % #1 is the section text. #2 is the pdf expression for the number + % of subentries (or empty, for subsubsections). #3 is the node + % text, which might be empty if this toc entry had no + % corresponding node. #4 is the page number. + % + \def\dopdfoutline#1#2#3#4{% + % Generate a link to the node text if that exists; else, use the + % page number. We could generate a destination for the section + % text in the case where a section has no node, but it doesn't + % seem worthwhile, since most documents are normally structured. + \def\pdfoutlinedest{#3}% + \ifx\pdfoutlinedest\empty \def\pdfoutlinedest{#4}\fi + % + \pdfoutline goto name{\pdfmkpgn{\pdfoutlinedest}}#2{#1}% + } + % + \def\pdfmakeoutlines{% + \begingroup + % Thanh's hack / proper braces in bookmarks \edef\mylbrace{\iftrue \string{\else}\fi}\let\{=\mylbrace \edef\myrbrace{\iffalse{\else\string}\fi}\let\}=\myrbrace % - \def\chapentry ##1##2##3{} - \def\secentry ##1##2##3##4{\advancenumber{chap##2}} - \def\subsecentry ##1##2##3##4##5{\advancenumber{sec##2.##3}} - \def\subsubsecentry ##1##2##3##4##5##6{\advancenumber{subsec##2.##3.##4}} - \let\appendixentry = \chapentry - \let\unnumbchapentry = \chapentry - \let\unnumbsecentry = \secentry - \let\unnumbsubsecentry = \subsecentry - \let\unnumbsubsubsecentry = \subsubsecentry + % Read toc silently, to get counts of subentries for \pdfoutline. + \def\numchapentry##1##2##3##4{% + \def\thischapnum{##2}% + \let\thissecnum\empty + \let\thissubsecnum\empty + }% + \def\numsecentry##1##2##3##4{% + \advancenumber{chap\thischapnum}% + \def\thissecnum{##2}% + \let\thissubsecnum\empty + }% + \def\numsubsecentry##1##2##3##4{% + \advancenumber{sec\thissecnum}% + \def\thissubsecnum{##2}% + }% + \def\numsubsubsecentry##1##2##3##4{% + \advancenumber{subsec\thissubsecnum}% + }% + \let\thischapnum\empty + \let\thissecnum\empty + \let\thissubsecnum\empty + % + % use \def rather than \let here because we redefine \chapentry et + % al. a second time, below. + \def\appentry{\numchapentry}% + \def\appsecentry{\numsecentry}% + \def\appsubsecentry{\numsubsecentry}% + \def\appsubsubsecentry{\numsubsubsecentry}% + \def\unnchapentry{\numchapentry}% + \def\unnsecentry{\numsecentry}% + \def\unnsubsecentry{\numsubsecentry}% + \def\unnsubsubsecentry{\numsubsubsecentry}% \input \jobname.toc - \def\chapentry ##1##2##3{% - \pdfoutline goto name{\pdfmkpgn{##3}}count-\expnumber{chap##2}{##1}} - \def\secentry ##1##2##3##4{% - \pdfoutline goto name{\pdfmkpgn{##4}}count-\expnumber{sec##2.##3}{##1}} - \def\subsecentry ##1##2##3##4##5{% - \pdfoutline goto name{\pdfmkpgn{##5}}count-\expnumber{subsec##2.##3.##4}{##1}} - \def\subsubsecentry ##1##2##3##4##5##6{% - \pdfoutline goto name{\pdfmkpgn{##6}}{##1}} - \let\appendixentry = \chapentry - \let\unnumbchapentry = \chapentry - \let\unnumbsecentry = \secentry - \let\unnumbsubsecentry = \subsecentry - \let\unnumbsubsubsecentry = \subsubsecentry % - % Make special characters normal for writing to the pdf file. + % Read toc second time, this time actually producing the outlines. + % The `-' means take the \expnumber as the absolute number of + % subentries, which we calculated on our first read of the .toc above. % + % We use the node names as the destinations. + \def\numchapentry##1##2##3##4{% + \dopdfoutline{##1}{count-\expnumber{chap##2}}{##3}{##4}}% + \def\numsecentry##1##2##3##4{% + \dopdfoutline{##1}{count-\expnumber{sec##2}}{##3}{##4}}% + \def\numsubsecentry##1##2##3##4{% + \dopdfoutline{##1}{count-\expnumber{subsec##2}}{##3}{##4}}% + \def\numsubsubsecentry##1##2##3##4{% count is always zero + \dopdfoutline{##1}{}{##3}{##4}}% + % + % PDF outlines are displayed using system fonts, instead of + % document fonts. Therefore we cannot use special characters, + % since the encoding is unknown. For example, the eogonek from + % Latin 2 (0xea) gets translated to a | character. Info from + % Staszek Wawrykiewicz, 19 Jan 2004 04:09:24 +0100. + % + % xx to do this right, we have to translate 8-bit characters to + % their "best" equivalent, based on the @documentencoding. Right + % now, I guess we'll just let the pdf reader have its way. \indexnofonts - \let\tt=\relax \turnoffactive \input \jobname.toc - \endgroup\fi - }} + \endgroup + } + % \def\makelinks #1,{% \def\params{#1}\def\E{END}% \ifx\params\E @@ -1091,7 +1303,7 @@ where each line of input produces a line of output.} \let\nextmakelinks=\makelinks \ifnum\lnkcount>0,\fi \picknum{#1}% - \startlink attr{/Border [0 0 0]} + \startlink attr{/Border [0 0 0]} goto name{\pdfmkpgn{\the\pgn}}% \linkcolor #1% \advance\lnkcount by 1% @@ -1113,7 +1325,6 @@ where each line of input produces a line of output.} \def\ppn#1{\pgn=#1\gobble} \def\ppnn{\pgn=\first} \def\pdfmklnk#1{\lnkcount=0\makelinks #1,END,} - \def\addtokens#1#2{\edef\addtoks{\noexpand#1={\the#1#2}}\addtoks} \def\skipspaces#1{\def\PP{#1}\def\D{|}% \ifx\PP\D\let\nextsp\relax \else\let\nextsp\skipspaces @@ -1131,22 +1342,21 @@ where each line of input produces a line of output.} \def\pdfurl#1{% \begingroup \normalturnoffactive\def\@{@}% - \let\value=\expandablevalue + \makevalueexpandable \leavevmode\Red \startlink attr{/Border [0 0 0]}% user{/Subtype /Link /A << /S /URI /URI (#1) >>}% - % #1 \endgroup} \def\pdfgettoks#1.{\setbox\boxA=\hbox{\toksA={#1.}\toksB={}\maketoks}} \def\addtokens#1#2{\edef\addtoks{\noexpand#1={\the#1#2}}\addtoks} \def\adn#1{\addtokens{\toksC}{#1}\global\countA=1\let\next=\maketoks} \def\poptoks#1#2|ENDTOKS|{\let\first=#1\toksD={#1}\toksA={#2}} \def\maketoks{% - \expandafter\poptoks\the\toksA|ENDTOKS| + \expandafter\poptoks\the\toksA|ENDTOKS|\relax \ifx\first0\adn0 \else\ifx\first1\adn1 \else\ifx\first2\adn2 \else\ifx\first3\adn3 \else\ifx\first4\adn4 \else\ifx\first5\adn5 \else\ifx\first6\adn6 - \else\ifx\first7\adn7 \else\ifx\first8\adn8 \else\ifx\first9\adn9 + \else\ifx\first7\adn7 \else\ifx\first8\adn8 \else\ifx\first9\adn9 \else \ifnum0=\countA\else\makelink\fi \ifx\first.\let\next=\done\else @@ -1166,16 +1376,34 @@ where each line of input produces a line of output.} \message{fonts,} -% Font-change commands. + +% Change the current font style to #1, remembering it in \curfontstyle. +% For now, we do not accumulate font styles: @b{@i{foo}} prints foo in +% italics, not bold italics. +% +\def\setfontstyle#1{% + \def\curfontstyle{#1}% not as a control sequence, because we are \edef'd. + \csname ten#1\endcsname % change the current font +} + +% Select #1 fonts with the current style. +% +\def\selectfonts#1{\csname #1fonts\endcsname \csname\curfontstyle\endcsname} + +\def\rm{\fam=0 \setfontstyle{rm}} +\def\it{\fam=\itfam \setfontstyle{it}} +\def\sl{\fam=\slfam \setfontstyle{sl}} +\def\bf{\fam=\bffam \setfontstyle{bf}} +\def\tt{\fam=\ttfam \setfontstyle{tt}} % Texinfo sort of supports the sans serif font style, which plain TeX does not. -% So we set up a \sf analogous to plain's \rm, etc. +% So we set up a \sf. \newfam\sffam -\def\sf{\fam=\sffam \tensf} +\def\sf{\fam=\sffam \setfontstyle{sf}} \let\li = \sf % Sometimes we call it \li, not \sf. -% We don't need math for this one. -\def\ttsl{\tenttsl} +% We don't need math for this font style. +\def\ttsl{\setfontstyle{ttsl}} % Default leading. \newdimen\textleading \textleading = 13.2pt @@ -1226,6 +1454,7 @@ where each line of input produces a line of output.} \def\scshape{csc} \def\scbshape{csc} +% Text fonts (11.2pt, magstep1). \newcount\mainmagstep \ifx\bigger\relax % not really supported. @@ -1237,10 +1466,6 @@ where each line of input produces a line of output.} \setfont\textrm\rmshape{10}{\mainmagstep} \setfont\texttt\ttshape{10}{\mainmagstep} \fi -% Instead of cmb10, you may want to use cmbx10. -% cmbx10 is a prettier font on its own, but cmb10 -% looks better when embedded in a line with cmr10 -% (in Bob's opinion). \setfont\textbf\bfshape{10}{\mainmagstep} \setfont\textit\itshape{10}{\mainmagstep} \setfont\textsl\slshape{10}{\mainmagstep} @@ -1250,10 +1475,11 @@ where each line of input produces a line of output.} \font\texti=cmmi10 scaled \mainmagstep \font\textsy=cmsy10 scaled \mainmagstep -% A few fonts for @defun, etc. -\setfont\defbf\bxshape{10}{\magstep1} %was 1314 +% A few fonts for @defun names and args. +\setfont\defbf\bfshape{10}{\magstep1} \setfont\deftt\ttshape{10}{\magstep1} -\def\df{\let\tentt=\deftt \let\tenbf = \defbf \bf} +\setfont\defttsl\ttslshape{10}{\magstep1} +\def\df{\let\tentt=\deftt \let\tenbf = \defbf \let\tenttsl=\defttsl \bf} % Fonts for indices, footnotes, small examples (9pt). \setfont\smallrm\rmshape{9}{1000} @@ -1279,7 +1505,7 @@ where each line of input produces a line of output.} \font\smalleri=cmmi8 \font\smallersy=cmsy8 -% Fonts for title page: +% Fonts for title page (20.4pt): \setfont\titlerm\rmbshape{12}{\magstep3} \setfont\titleit\itbshape{10}{\magstep4} \setfont\titlesl\slbshape{10}{\magstep4} @@ -1325,11 +1551,21 @@ where each line of input produces a line of output.} \setfont\ssecttsl\ttslshape{10}{1315} \setfont\ssecsf\sfbshape{12}{\magstephalf} \let\ssecbf\ssecrm -\setfont\ssecsc\scbshape{10}{\magstep1} +\setfont\ssecsc\scbshape{10}{1315} \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. + +% Reduced fonts for @acro in text (10pt). +\setfont\reducedrm\rmshape{10}{1000} +\setfont\reducedtt\ttshape{10}{1000} +\setfont\reducedbf\bfshape{10}{1000} +\setfont\reducedit\itshape{10}{1000} +\setfont\reducedsl\slshape{10}{1000} +\setfont\reducedsf\sfshape{10}{1000} +\setfont\reducedsc\scshape{10}{1000} +\setfont\reducedttsl\ttslshape{10}{1000} +\font\reducedi=cmmi10 +\font\reducedsy=cmsy10 % In order for the font changes to affect most math symbols and letters, % we have to define the \textfont of the standard families. Since @@ -1344,50 +1580,72 @@ where each line of input produces a line of output.} } % 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. +% of just \STYLE. We do this because \STYLE needs to also set the +% current \fam for math mode. Our \STYLE (e.g., \rm) commands hardwire +% \tenSTYLE to set the current font. +% +% Each font-changing command also sets the names \lsize (one size lower) +% and \lllsize (three sizes lower). These relative commands are used in +% the LaTeX logo and acronyms. +% +% This all needs generalizing, badly. +% \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 + \let\tensf=\textsf \let\teni=\texti \let\tensy=\textsy + \let\tenttsl=\textttsl + \def\lsize{reduced}\def\lllsize{smaller}% \resetmathfonts \setleading{\textleading}} \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 + \def\lsize{chap}\def\lllsize{subsec}% \resetmathfonts \setleading{25pt}} \def\titlefont#1{{\titlefonts\rm #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 + \def\lsize{sec}\def\lllsize{text}% \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 + \let\tensf=\secsf \let\teni=\seci \let\tensy=\secsy + \let\tenttsl=\secttsl + \def\lsize{subsec}\def\lllsize{reduced}% \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 + \let\tensf=\ssecsf \let\teni=\sseci \let\tensy=\ssecsy + \let\tenttsl=\ssecttsl + \def\lsize{text}\def\lllsize{small}% \resetmathfonts \setleading{15pt}} -\let\subsubsecfonts = \subsecfonts % Maybe make sssec fonts scaled magstephalf? +\let\subsubsecfonts = \subsecfonts +\def\reducedfonts{% + \let\tenrm=\reducedrm \let\tenit=\reducedit \let\tensl=\reducedsl + \let\tenbf=\reducedbf \let\tentt=\reducedtt \let\reducedcaps=\reducedsc + \let\tensf=\reducedsf \let\teni=\reducedi \let\tensy=\reducedsy + \let\tenttsl=\reducedttsl + \def\lsize{small}\def\lllsize{smaller}% + \resetmathfonts \setleading{10.5pt}} \def\smallfonts{% \let\tenrm=\smallrm \let\tenit=\smallit \let\tensl=\smallsl \let\tenbf=\smallbf \let\tentt=\smalltt \let\smallcaps=\smallsc \let\tensf=\smallsf \let\teni=\smalli \let\tensy=\smallsy \let\tenttsl=\smallttsl + \def\lsize{smaller}\def\lllsize{smaller}% \resetmathfonts \setleading{10.5pt}} \def\smallerfonts{% \let\tenrm=\smallerrm \let\tenit=\smallerit \let\tensl=\smallersl \let\tenbf=\smallerbf \let\tentt=\smallertt \let\smallcaps=\smallersc \let\tensf=\smallersf \let\teni=\smalleri \let\tensy=\smallersy \let\tenttsl=\smallerttsl + \def\lsize{smaller}\def\lllsize{smaller}% \resetmathfonts \setleading{9.5pt}} % Set the fonts to use with the @small... environments. @@ -1396,22 +1654,21 @@ where each line of input produces a line of output.} % About \smallexamplefonts. If we use \smallfonts (9pt), @smallexample % can fit this many characters: % 8.5x11=86 smallbook=72 a4=90 a5=69 -% If we use \smallerfonts (8pt), then we can fit this many characters: +% If we use \scriptfonts (8pt), then we can fit this many characters: % 8.5x11=90+ smallbook=80 a4=90+ a5=77 % For me, subjectively, the few extra characters that fit aren't worth % the additional smallness of 8pt. So I'm making the default 9pt. -% +% % By the way, for comparison, here's what fits with @example (10pt): % 8.5x11=71 smallbook=60 a4=75 a5=58 -% -% I wish we used A4 paper on this side of the Atlantic. -% +% +% I wish the USA used A4 paper. % --karl, 24jan03. % Set up the default fonts, so we can use them for creating boxes. % -\textfonts +\textfonts \rm % Define these so they can be easily changed for other fonts. \def\angleleft{$\langle$} @@ -1422,7 +1679,7 @@ where each line of input produces a line of output.} % Fonts for short table of contents. \setfont\shortcontrm\rmshape{12}{1000} -\setfont\shortcontbf\bxshape{12}{1000} +\setfont\shortcontbf\bfshape{10}{\magstep1} % no cmb12 \setfont\shortcontsl\slshape{12}{1000} \setfont\shortconttt\ttshape{12}{1000} @@ -1431,15 +1688,23 @@ where each line of input produces a line of output.} % \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\smartitalicx{\ifx\next,\else\ifx\next-\else\ifx\next.\else + \ptexslash\fi\fi\fi} \def\smartslanted#1{{\ifusingtt\ttsl\sl #1}\futurelet\next\smartitalicx} \def\smartitalic#1{{\ifusingtt\ttsl\it #1}\futurelet\next\smartitalicx} +% like \smartslanted except unconditionally uses \ttsl. +% @var is set to this for defun arguments. +\def\ttslanted#1{{\ttsl #1}\futurelet\next\smartitalicx} + +% like \smartslanted except unconditionally use \sl. We never want +% ttsl for book titles, do we? +\def\cite#1{{\sl #1}\futurelet\next\smartitalicx} + \let\i=\smartitalic \let\var=\smartslanted \let\dfn=\smartslanted \let\emph=\smartitalic -\let\cite=\smartslanted \def\b#1{{\bf #1}} \let\strong=\b @@ -1454,7 +1719,7 @@ where each line of input produces a line of output.} % Set sfcode to normal for the chars that usually have another value. % Can't use plain's \frenchspacing because it uses the `\x notation, and % sometimes \x has an active definition that messes things up. -% +% \catcode`@=11 \def\frenchspacing{% \sfcode\dotChar =\@m \sfcode\questChar=\@m \sfcode\exclamChar=\@m @@ -1466,7 +1731,6 @@ where each line of input produces a line of output.} {\tt \rawbackslash \frenchspacing #1}% \null } -\let\ttfont=\t \def\samp#1{`\tclose{#1}'\null} \setfont\keyrm\rmshape{8}{1000} \font\keysy=cmsy9 @@ -1507,7 +1771,7 @@ where each line of input produces a line of output.} \null } -% We *must* turn on hyphenation at `-' and `_' in \code. +% 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. @@ -1525,10 +1789,6 @@ where each line of input produces a line of output.} \catcode`\_=\active \let_\codeunder \codex } - % - % If we end up with any active - characters when handling the index, - % just treat them as a normal -. - \global\def\indexbreaks{\catcode`\-=\active \let-\realdash} } \def\realdash{-} @@ -1552,8 +1812,7 @@ where each line of input produces a line of output.} % @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{% +\parseargdef\kbdinputstyle{% \def\arg{#1}% \ifx\arg\worddistinct \gdef\kbdexamplefont{\ttsl}\gdef\kbdfont{\ttsl}% @@ -1563,7 +1822,7 @@ where each line of input produces a line of output.} \gdef\kbdexamplefont{\tt}\gdef\kbdfont{\tt}% \else \errhelp = \EMsimple - \errmessage{Unknown @kbdinputstyle `\arg'}% + \errmessage{Unknown @kbdinputstyle option `\arg'}% \fi\fi\fi } \def\worddistinct{distinct} @@ -1614,7 +1873,7 @@ where each line of input produces a line of output.} % rms does not like angle brackets --karl, 17may97. % So now @email is just like @uref, unless we are pdf. -% +% %\def\email#1{\angleleft{\tt #1}\angleright} \ifpdf \def\email#1{\doemail#1,,\finish} @@ -1653,12 +1912,29 @@ where each line of input produces a line of output.} \def\sc#1{{\smallcaps#1}} % smallcaps font \def\ii#1{{\it #1}} % italic font -% @acronym downcases the argument and prints in smallcaps. -\def\acronym#1{{\smallcaps \lowercase{#1}}} +\def\acronym#1{\doacronym #1,,\finish} +\def\doacronym#1,#2,#3\finish{% + {\selectfonts\lsize #1}% + \def\temp{#2}% + \ifx\temp\empty \else + \space ({\unsepspaces \ignorespaces \temp \unskip})% + \fi +} -% @pounds{} is a sterling sign. +% @pounds{} is a sterling sign, which is in the CM italic font. +% \def\pounds{{\it\$}} +% @registeredsymbol - R in a circle. The font for the R should really +% be smaller yet, but lllsize is the best we can do for now. +% Adapted from the plain.tex definition of \copyright. +% +\def\registeredsymbol{% + $^{{\ooalign{\hfil\raise.07ex\hbox{\selectfonts\lllsize R}% + \hfil\crcr\Orb}}% + }$% +} + \message{page headings,} @@ -1677,87 +1953,103 @@ where each line of input produces a line of output.} \newif\ifsetshortcontentsaftertitlepage \let\setshortcontentsaftertitlepage = \setshortcontentsaftertitlepagetrue -\def\shorttitlepage{\parsearg\shorttitlepagezzz} -\def\shorttitlepagezzz #1{\begingroup\hbox{}\vskip 1.5in \chaprm \centerline{#1}% +\parseargdef\shorttitlepage{\begingroup\hbox{}\vskip 1.5in \chaprm \centerline{#1}% \endgroup\page\hbox{}\page} -\def\titlepage{\begingroup \parindent=0pt \textfonts - \let\subtitlerm=\tenrm - \def\subtitlefont{\subtitlerm \normalbaselineskip = 13pt \normalbaselines}% - % - \def\authorfont{\authorrm \normalbaselineskip = 16pt \normalbaselines - \let\tt=\authortt}% - % - % 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{% +\envdef\titlepage{% + % Open one extra group, as we want to close it in the middle of \Etitlepage. + \begingroup + \parindent=0pt \textfonts + % Leave some space at the very top of the page. + \vglue\titlepagetopglue + % No rule at page bottom unless we print one at the top with @title. + \finishedtitlepagetrue + % + % 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 + \finishtitlepage \fi - \oldpage \let\page = \oldpage - \hbox{}}% -% \def\page{\oldpage \hbox{}} + \page + \null + }% } \def\Etitlepage{% - \iffinishedtitlepage\else - \finishtitlepage - \fi - % It is important to do the page break before ending the group, - % because the headline and footline are only empty inside the group. - % If we use the new definition of \page, we always get a blank page - % after the title page, which we certainly don't want. - \oldpage - \endgroup - % - % Need this before the \...aftertitlepage checks so that if they are - % in effect the toc pages will come out with page numbers. - \HEADINGSon - % - % If they want short, they certainly want long too. - \ifsetshortcontentsaftertitlepage - \shortcontents - \contents - \global\let\shortcontents = \relax - \global\let\contents = \relax - \fi - % - \ifsetcontentsaftertitlepage - \contents - \global\let\contents = \relax - \global\let\shortcontents = \relax - \fi + \iffinishedtitlepage\else + \finishtitlepage + \fi + % It is important to do the page break before ending the group, + % because the headline and footline are only empty inside the group. + % If we use the new definition of \page, we always get a blank page + % after the title page, which we certainly don't want. + \oldpage + \endgroup + % + % Need this before the \...aftertitlepage checks so that if they are + % in effect the toc pages will come out with page numbers. + \HEADINGSon + % + % If they want short, they certainly want long too. + \ifsetshortcontentsaftertitlepage + \shortcontents + \contents + \global\let\shortcontents = \relax + \global\let\contents = \relax + \fi + % + \ifsetcontentsaftertitlepage + \contents + \global\let\contents = \relax + \global\let\shortcontents = \relax + \fi } \def\finishtitlepage{% - \vskip4pt \hrule height 2pt width \hsize - \vskip\titlepagebottomglue - \finishedtitlepagetrue + \vskip4pt \hrule height 2pt width \hsize + \vskip\titlepagebottomglue + \finishedtitlepagetrue +} + +%%% Macros to be used within @titlepage: + +\let\subtitlerm=\tenrm +\def\subtitlefont{\subtitlerm \normalbaselineskip = 13pt \normalbaselines} + +\def\authorfont{\authorrm \normalbaselineskip = 16pt \normalbaselines + \let\tt=\authortt} + +\parseargdef\title{% + \checkenv\titlepage + \leftline{\titlefonts\rm #1} + % print a rule at the page bottom also. + \finishedtitlepagefalse + \vskip4pt \hrule height 4pt width \hsize \vskip4pt } +\parseargdef\subtitle{% + \checkenv\titlepage + {\subtitlefont \rightline{#1}}% +} + +% @author should come last, but may come many times. +% It can also be used inside @quotation. +% +\parseargdef\author{% + \def\temp{\quotation}% + \ifx\thisenv\temp + \def\quotationauthor{#1}% printed in \Equotation. + \else + \checkenv\titlepage + \ifseenauthor\else \vskip 0pt plus 1filll \seenauthortrue \fi + {\authorfont \leftline{#1}}% + \fi +} + + %%% Set up page headings and footings. \let\thispage=\folio @@ -1767,7 +2059,7 @@ where each line of input produces a line of output.} \newtoks\evenfootline % footline on even pages \newtoks\oddfootline % footline on odd pages -% Now make Tex use those variables +% Now make TeX use those variables \headline={{\textfonts\rm \ifodd\pageno \the\oddheadline \else \the\evenheadline \fi}} \footline={{\textfonts\rm \ifodd\pageno \the\oddfootline @@ -1781,32 +2073,27 @@ where each line of input produces a line of output.} % @evenfooting @thisfile|| % @oddfooting ||@thisfile -\def\evenheading{\parsearg\evenheadingxxx} -\def\oddheading{\parsearg\oddheadingxxx} -\def\everyheading{\parsearg\everyheadingxxx} -\def\evenfooting{\parsearg\evenfootingxxx} -\def\oddfooting{\parsearg\oddfootingxxx} -\def\everyfooting{\parsearg\everyfootingxxx} - -{\catcode`\@=0 % - -\gdef\evenheadingxxx #1{\evenheadingyyy #1@|@|@|@|\finish} -\gdef\evenheadingyyy #1@|#2@|#3@|#4\finish{% +\def\evenheading{\parsearg\evenheadingxxx} +\def\evenheadingxxx #1{\evenheadingyyy #1\|\|\|\|\finish} +\def\evenheadingyyy #1\|#2\|#3\|#4\finish{% \global\evenheadline={\rlap{\centerline{#2}}\line{#1\hfil#3}}} -\gdef\oddheadingxxx #1{\oddheadingyyy #1@|@|@|@|\finish} -\gdef\oddheadingyyy #1@|#2@|#3@|#4\finish{% +\def\oddheading{\parsearg\oddheadingxxx} +\def\oddheadingxxx #1{\oddheadingyyy #1\|\|\|\|\finish} +\def\oddheadingyyy #1\|#2\|#3\|#4\finish{% \global\oddheadline={\rlap{\centerline{#2}}\line{#1\hfil#3}}} -\gdef\everyheadingxxx#1{\oddheadingxxx{#1}\evenheadingxxx{#1}}% +\parseargdef\everyheading{\oddheadingxxx{#1}\evenheadingxxx{#1}}% -\gdef\evenfootingxxx #1{\evenfootingyyy #1@|@|@|@|\finish} -\gdef\evenfootingyyy #1@|#2@|#3@|#4\finish{% +\def\evenfooting{\parsearg\evenfootingxxx} +\def\evenfootingxxx #1{\evenfootingyyy #1\|\|\|\|\finish} +\def\evenfootingyyy #1\|#2\|#3\|#4\finish{% \global\evenfootline={\rlap{\centerline{#2}}\line{#1\hfil#3}}} -\gdef\oddfootingxxx #1{\oddfootingyyy #1@|@|@|@|\finish} -\gdef\oddfootingyyy #1@|#2@|#3@|#4\finish{% +\def\oddfooting{\parsearg\oddfootingxxx} +\def\oddfootingxxx #1{\oddfootingyyy #1\|\|\|\|\finish} +\def\oddfootingyyy #1\|#2\|#3\|#4\finish{% \global\oddfootline = {\rlap{\centerline{#2}}\line{#1\hfil#3}}% % % Leave some space for the footline. Hopefully ok to assume @@ -1815,9 +2102,8 @@ where each line of input produces a line of output.} \global\advance\vsize by -\baselineskip } -\gdef\everyfootingxxx#1{\oddfootingxxx{#1}\evenfootingxxx{#1}} -% -}% unbind the catcode of @. +\parseargdef\everyfooting{\oddfootingxxx{#1}\evenfootingxxx{#1}} + % @headings double turns headings on for double-sided printing. % @headings single turns headings on for single-sided printing. @@ -1831,7 +2117,7 @@ where each line of input produces a line of output.} \def\headings #1 {\csname HEADINGS#1\endcsname} -\def\HEADINGSoff{ +\def\HEADINGSoff{% \global\evenheadline={\hfil} \global\evenfootline={\hfil} \global\oddheadline={\hfil} \global\oddfootline={\hfil}} \HEADINGSoff @@ -1840,7 +2126,7 @@ where each line of input produces a line of output.} % 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{ +\def\HEADINGSdouble{% \global\pageno=1 \global\evenfootline={\hfil} \global\oddfootline={\hfil} @@ -1852,7 +2138,7 @@ where each line of input produces a line of output.} % For single-sided printing, chapter title goes across top left of page, % page number on top right. -\def\HEADINGSsingle{ +\def\HEADINGSsingle{% \global\pageno=1 \global\evenfootline={\hfil} \global\oddfootline={\hfil} @@ -1899,12 +2185,11 @@ where each line of input produces a line of output.} % @settitle line... specifies the title of the document, for headings. % It generates no output of its own. \def\thistitle{\putwordNoTitle} -\def\settitle{\parsearg\settitlezzz} -\def\settitlezzz #1{\gdef\thistitle{#1}} +\def\settitle{\parsearg{\gdef\thistitle}} \message{tables,} -% Tables -- @table, @ftable, @vtable, @item(x), @kitem(x), @xitem(x). +% Tables -- @table, @ftable, @vtable, @item(x). % default indentation of table text \newdimen\tableindent \tableindent=.8in @@ -1916,7 +2201,7 @@ where each line of input produces a line of output.} % used internally for \itemindent minus \itemmargin \newdimen\itemmax -% Note @table, @vtable, and @vtable define @item, @itemx, etc., with +% Note @table, @ftable, and @vtable define @item, @itemx, etc., with % these defs. % They also define \itemindex % to index the item name in whatever manner is desired (perhaps none). @@ -1928,22 +2213,10 @@ where each line of input produces a line of output.} \def\internalBitem{\smallbreak \parsearg\itemzzz} \def\internalBitemx{\itemxpar \parsearg\itemzzz} -\def\internalBxitem "#1"{\def\xitemsubtopix{#1} \smallbreak \parsearg\xitemzzz} -\def\internalBxitemx "#1"{\def\xitemsubtopix{#1} \itemxpar \parsearg\xitemzzz} - -\def\internalBkitem{\smallbreak \parsearg\kitemzzz} -\def\internalBkitemx{\itemxpar \parsearg\kitemzzz} - -\def\kitemzzz #1{\dosubind {kw}{\code{#1}}{for {\bf \lastfunction}}% - \itemzzz {#1}} - -\def\xitemzzz #1{\dosubind {kw}{\code{#1}}{for {\bf \xitemsubtopic}}% - \itemzzz {#1}} - \def\itemzzz #1{\begingroup % \advance\hsize by -\rightskip \advance\hsize by -\tableindent - \setbox0=\hbox{\itemfont{#1}}% + \setbox0=\hbox{\itemindicate{#1}}% \itemindex{#1}% \nobreak % This prevents a break before @itemx. % @@ -1997,92 +2270,95 @@ where each line of input produces a line of output.} \fi } -\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}{}{}{}{}} +\def\item{\errmessage{@item while not in a list environment}} +\def\itemx{\errmessage{@itemx while not in a list environment}} % @table, @ftable, @vtable. -\def\table{\begingroup\inENV\obeylines\obeyspaces\tablex} -{\obeylines\obeyspaces% -\gdef\tablex #1^^M{% -\tabley\dontindex#1 \endtabley}} - -\def\ftable{\begingroup\inENV\obeylines\obeyspaces\ftablex} -{\obeylines\obeyspaces% -\gdef\ftablex #1^^M{% -\tabley\fnitemindex#1 \endtabley -\def\Eftable{\endgraf\afterenvbreak\endgroup}% -\let\Etable=\relax}} - -\def\vtable{\begingroup\inENV\obeylines\obeyspaces\vtablex} -{\obeylines\obeyspaces% -\gdef\vtablex #1^^M{% -\tabley\vritemindex#1 \endtabley -\def\Evtable{\endgraf\afterenvbreak\endgroup}% -\let\Etable=\relax}} - -\def\dontindex #1{} -\def\fnitemindex #1{\doind {fn}{\code{#1}}}% -\def\vritemindex #1{\doind {vr}{\code{#1}}}% - -{\obeyspaces % -\gdef\tabley#1#2 #3 #4 #5 #6 #7\endtabley{\endgroup% -\tablez{#1}{#2}{#3}{#4}{#5}{#6}}} - -\def\tablez #1#2#3#4#5#6{% -\aboveenvbreak % -\begingroup % -\def\Edescription{\Etable}% Necessary kludge. -\let\itemindex=#1% -\ifnum 0#3>0 \advance \leftskip by #3\mil \fi % -\ifnum 0#4>0 \tableindent=#4\mil \fi % -\ifnum 0#5>0 \advance \rightskip by #5\mil \fi % -\def\itemfont{#2}% -\itemmax=\tableindent % -\advance \itemmax by -\itemmargin % -\advance \leftskip by \tableindent % -\exdentamount=\tableindent -\parindent = 0pt -\parskip = \smallskipamount -\ifdim \parskip=0pt \parskip=2pt \fi% -\def\Etable{\endgraf\afterenvbreak\endgroup}% -\let\item = \internalBitem % -\let\itemx = \internalBitemx % -\let\kitem = \internalBkitem % -\let\kitemx = \internalBkitemx % -\let\xitem = \internalBxitem % -\let\xitemx = \internalBxitemx % +\envdef\table{% + \let\itemindex\gobble + \tablex +} +\envdef\ftable{% + \def\itemindex ##1{\doind {fn}{\code{##1}}}% + \tablex +} +\envdef\vtable{% + \def\itemindex ##1{\doind {vr}{\code{##1}}}% + \tablex +} +\def\tablex#1{% + \def\itemindicate{#1}% + \parsearg\tabley +} +\def\tabley#1{% + {% + \makevalueexpandable + \edef\temp{\noexpand\tablez #1\space\space\space}% + \expandafter + }\temp \endtablez } +\def\tablez #1 #2 #3 #4\endtablez{% + \aboveenvbreak + \ifnum 0#1>0 \advance \leftskip by #1\mil \fi + \ifnum 0#2>0 \tableindent=#2\mil \fi + \ifnum 0#3>0 \advance \rightskip by #3\mil \fi + \itemmax=\tableindent + \advance \itemmax by -\itemmargin + \advance \leftskip by \tableindent + \exdentamount=\tableindent + \parindent = 0pt + \parskip = \smallskipamount + \ifdim \parskip=0pt \parskip=2pt \fi + \let\item = \internalBitem + \let\itemx = \internalBitemx +} +\def\Etable{\endgraf\afterenvbreak} +\let\Eftable\Etable +\let\Evtable\Etable +\let\Eitemize\Etable +\let\Eenumerate\Etable % This is the counter used by @enumerate, which is really @itemize \newcount \itemno -\def\itemize{\parsearg\itemizezzz} +\envdef\itemize{\parsearg\doitemize} -\def\itemizezzz #1{% - \begingroup % ended by the @end itemize - \itemizey {#1}{\Eitemize} +\def\doitemize#1{% + \aboveenvbreak + \itemmax=\itemindent + \advance\itemmax by -\itemmargin + \advance\leftskip by \itemindent + \exdentamount=\itemindent + \parindent=0pt + \parskip=\smallskipamount + \ifdim\parskip=0pt \parskip=2pt \fi + \def\itemcontents{#1}% + % @itemize with no arg is equivalent to @itemize @bullet. + \ifx\itemcontents\empty\def\itemcontents{\bullet}\fi + \let\item=\itemizeitem } -\def\itemizey #1#2{% -\aboveenvbreak % -\itemmax=\itemindent % -\advance \itemmax by -\itemmargin % -\advance \leftskip by \itemindent % -\exdentamount=\itemindent -\parindent = 0pt % -\parskip = \smallskipamount % -\ifdim \parskip=0pt \parskip=2pt \fi% -\def#2{\endgraf\afterenvbreak\endgroup}% -\def\itemcontents{#1}% -\let\item=\itemizeitem} +% Definition of @item while inside @itemize and @enumerate. +% +\def\itemizeitem{% + \advance\itemno by 1 % for enumerations + {\let\par=\endgraf \smallbreak}% reasonable place to break + {% + % If the document has an @itemize directly after a section title, a + % \nobreak will be last on the list, and \sectionheading will have + % done a \vskip-\parskip. In that case, we don't want to zero + % parskip, or the item text will crash with the heading. On the + % other hand, when there is normal text preceding the item (as there + % usually is), we do want to zero parskip, or there would be too much + % space. In that case, we won't have a \nobreak before. At least + % that's the theory. + \ifnum\lastpenalty<10000 \parskip=0in \fi + \noindent + \hbox to 0pt{\hss \itemcontents \kern\itemmargin}% + \vadjust{\penalty 1200}}% not good to break after first line of item. + \flushcr +} % \splitoff TOKENS\endmark defines \first to be the first token in % TOKENS, and \rest to be the remainder. @@ -2093,11 +2369,8 @@ where each line of input produces a line of output.} % or number, to specify the first label in the enumerated list. No % argument is the same as `1'. % -\def\enumerate{\parsearg\enumeratezzz} -\def\enumeratezzz #1{\enumeratey #1 \endenumeratey} +\envparseargdef\enumerate{\enumeratey #1 \endenumeratey} \def\enumeratey #1 #2\endenumeratey{% - \begingroup % ended by the @end enumerate - % % If we were given no argument, pretend we were given `1'. \def\thearg{#1}% \ifx\thearg\empty \def\thearg{1}\fi @@ -2168,13 +2441,13 @@ where each line of input produces a line of output.} }% } -% Call itemizey, adding a period to the first argument and supplying the +% Call \doitemize, adding a period to the first argument and supplying the % common last two arguments. Also subtract one from the initial value in % \itemno, since @item increments \itemno. % \def\startenumeration#1{% \advance\itemno by -1 - \itemizey{#1.}\Eenumerate\flushcr + \doitemize{#1.}\flushcr } % @alphaenumerate and @capsenumerate are abbreviations for giving an arg @@ -2185,16 +2458,6 @@ where each line of input produces a line of output.} \def\Ealphaenumerate{\Eenumerate} \def\Ecapsenumerate{\Eenumerate} -% Definition of @item while inside @itemize. - -\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 1200}}% -\flushcr} % @multitable macros % Amy Hendrickson, 8/18/94, 3/6/96 @@ -2221,24 +2484,14 @@ where each line of input produces a line of output.} % @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. +% @item, @tab do not need to be on their own lines, but it will not hurt +% if they are. % Sample multitable: @@ -2282,13 +2535,12 @@ where each line of input produces a line of output.} \def\xcolumnfractions{\columnfractions} \newif\ifsetpercent -% #1 is the part of the @columnfraction before the decimal point, which -% is presumably either 0 or the empty string (but we don't check, we -% just throw it away). #2 is the decimal part, which we use as the -% percent of \hsize for this column. -\def\pickupwholefraction#1.#2 {% +% #1 is the @columnfraction, usually a decimal number like .5, but might +% be just 1. We just use it, whatever it is. +% +\def\pickupwholefraction#1 {% \global\advance\colcount by 1 - \expandafter\xdef\csname col\the\colcount\endcsname{.#2\hsize}% + \expandafter\xdef\csname col\the\colcount\endcsname{#1\hsize}% \setuptable } @@ -2321,18 +2573,30 @@ where each line of input produces a line of output.} \go } +% multitable-only commands. +% +% @headitem starts a heading row, which we typeset in bold. +% Assignments have to be global since we are inside the implicit group +% of an alignment entry. Note that \everycr resets \everytab. +\def\headitem{\checkenv\multitable \crcr \global\everytab={\bf}\the\everytab}% +% +% A \tab used to include \hskip1sp. But then the space in a template +% line is not enough. That is bad. So let's go back to just `&' until +% we encounter the problem it was intended to solve again. +% --karl, nathan@acm.org, 20apr99. +\def\tab{\checkenv\multitable &\the\everytab}% + % @multitable ... @end multitable definitions: % -\def\multitable{\parsearg\dotable} -\def\dotable#1{\bgroup +\newtoks\everytab % insert after every tab. +% +\envdef\multitable{% \vskip\parskip - \let\item=\crcrwithfootnotes - % A \tab used to include \hskip1sp. But then the space in a template - % line is not enough. That is bad. So let's go back to just & until - % we encounter the problem it was intended to solve again. --karl, - % nathan@acm.org, 20apr99. - \let\tab=&% - \let\startfootins=\startsavedfootnote + \startsavinginserts + % + % @item within a multitable starts a normal row. + \let\item\crcr + % \tolerance=9500 \hbadness=9500 \setmultitablespacing @@ -2340,70 +2604,80 @@ where each line of input produces a line of output.} \parindent=\multitableparindent \overfullrule=0pt \global\colcount=0 - \def\Emultitable{% - \global\setpercentfalse - \crcrwithfootnotes\crcr - \egroup\egroup + % + \everycr = {% + \noalign{% + \global\everytab={}% + \global\colcount=0 % Reset the column counter. + % Check for saved footnotes, etc. + \checkinserts + % Keeps underfull box messages off when table breaks over pages. + %\filbreak + % Maybe so, but it also creates really weird page breaks when the + % table breaks over pages. Wouldn't \vfil be better? Wait until the + % problem manifests itself, so it can be fixed for real --karl. + }% }% % + \parsearg\domultitable +} +\def\domultitable#1{% % To parse everything between @multitable and @item: \setuptable#1 \endsetuptable % - % \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. - \everycr{\noalign{% - % - % \filbreak%% keeps underfull box messages off when table breaks over pages. - % Maybe so, but it also creates really weird page breaks when the table - % breaks over pages. Wouldn't \vfil be better? Wait until the problem - % manifests itself, so it can be fixed for real --karl. - \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 the 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. - % - % Make sure we don't inherit \rightskip from the outer environment. - \rightskip=0pt - \ifnum\colcount=1 - % The first column will be indented with the surrounding text. - \advance\hsize by\leftskip - \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 - % Ignoring space at the beginning and end avoids an occasional spurious - % blank line, when TeX decides to break the line at the space before the - % box from the multistrut, so the strut ends up on a line by itself. - % For example: - % @multitable @columnfractions .11 .89 - % @item @code{#} - % @tab Legal holiday which is valid in major parts of the whole country. - % Is automatically provided with highlighting sequences respectively marking - % characters. - \noindent\ignorespaces##\unskip\multistrut}\cr + \halign\bgroup &% + \global\advance\colcount by 1 + \multistrut + \vtop{% + % Use the current \colcount to find the correct column width: + \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 the 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. + % + % Make sure we don't inherit \rightskip from the outer environment. + \rightskip=0pt + \ifnum\colcount=1 + % The first column will be indented with the surrounding text. + \advance\hsize by\leftskip + \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 + % Ignoring space at the beginning and end avoids an occasional spurious + % blank line, when TeX decides to break the line at the space before the + % box from the multistrut, so the strut ends up on a line by itself. + % For example: + % @multitable @columnfractions .11 .89 + % @item @code{#} + % @tab Legal holiday which is valid in major parts of the whole country. + % Is automatically provided with highlighting sequences respectively + % marking characters. + \noindent\ignorespaces##\unskip\multistrut + }\cr +} +\def\Emultitable{% + \crcr + \egroup % end the \halign + \global\setpercentfalse } \def\setmultitablespacing{% test to see if user has set \multitablelinespace. @@ -2433,163 +2707,33 @@ width0pt\relax} \fi %% than skip between lines in the table. \fi} -% In case a @footnote appears inside an alignment, save the footnote -% text to a box and make the \insert when a row of the table is -% finished. Otherwise, the insertion is lost, it never migrates to the -% main vertical list. --kasal, 22jan03. -% -\newbox\savedfootnotes -% -% \dotable \let's \startfootins to this, so that \dofootnote will call -% it instead of starting the insertion right away. -\def\startsavedfootnote{% - \global\setbox\savedfootnotes = \vbox\bgroup - \unvbox\savedfootnotes -} -\def\crcrwithfootnotes{% - \crcr - \ifvoid\savedfootnotes \else - \noalign{\insert\footins{\box\savedfootnotes}}% - \fi -} \message{conditionals,} -% Prevent errors for section commands. -% Used in @ignore and in failing conditionals. -\def\ignoresections{% - \let\chapter=\relax - \let\unnumbered=\relax - \let\top=\relax - \let\unnumberedsec=\relax - \let\unnumberedsection=\relax - \let\unnumberedsubsec=\relax - \let\unnumberedsubsection=\relax - \let\unnumberedsubsubsec=\relax - \let\unnumberedsubsubsection=\relax - \let\section=\relax - \let\subsec=\relax - \let\subsubsec=\relax - \let\subsection=\relax - \let\subsubsection=\relax - \let\appendix=\relax - \let\appendixsec=\relax - \let\appendixsection=\relax - \let\appendixsubsec=\relax - \let\appendixsubsection=\relax - \let\appendixsubsubsec=\relax - \let\appendixsubsubsection=\relax - \let\contents=\relax - \let\smallbook=\relax - \let\titlepage=\relax -} - -% Used in nested conditionals, where we have to parse the Texinfo source -% and so want to turn off most commands, in case they are used -% incorrectly. -% -% We use \empty instead of \relax for the @def... commands, so that \end -% doesn't throw an error. For instance: -% @ignore -% @deffn ... -% @end deffn -% @end ignore -% -% The @end deffn is going to get expanded, because we're trying to allow -% nested conditionals. But we don't want to expand the actual @deffn, -% since it might be syntactically correct and intended to be ignored. -% Since \end checks for \relax, using \empty does not cause an error. -% -\def\ignoremorecommands{% - \let\defcodeindex = \relax - \let\defcv = \empty - \let\defcvx = \empty - \let\Edefcv = \empty - \let\deffn = \empty - \let\deffnx = \empty - \let\Edeffn = \empty - \let\defindex = \relax - \let\defivar = \empty - \let\defivarx = \empty - \let\Edefivar = \empty - \let\defmac = \empty - \let\defmacx = \empty - \let\Edefmac = \empty - \let\defmethod = \empty - \let\defmethodx = \empty - \let\Edefmethod = \empty - \let\defop = \empty - \let\defopx = \empty - \let\Edefop = \empty - \let\defopt = \empty - \let\defoptx = \empty - \let\Edefopt = \empty - \let\defspec = \empty - \let\defspecx = \empty - \let\Edefspec = \empty - \let\deftp = \empty - \let\deftpx = \empty - \let\Edeftp = \empty - \let\deftypefn = \empty - \let\deftypefnx = \empty - \let\Edeftypefn = \empty - \let\deftypefun = \empty - \let\deftypefunx = \empty - \let\Edeftypefun = \empty - \let\deftypeivar = \empty - \let\deftypeivarx = \empty - \let\Edeftypeivar = \empty - \let\deftypemethod = \empty - \let\deftypemethodx = \empty - \let\Edeftypemethod = \empty - \let\deftypeop = \empty - \let\deftypeopx = \empty - \let\Edeftypeop = \empty - \let\deftypevar = \empty - \let\deftypevarx = \empty - \let\Edeftypevar = \empty - \let\deftypevr = \empty - \let\deftypevrx = \empty - \let\Edeftypevr = \empty - \let\defun = \empty - \let\defunx = \empty - \let\Edefun = \empty - \let\defvar = \empty - \let\defvarx = \empty - \let\Edefvar = \empty - \let\defvr = \empty - \let\defvrx = \empty - \let\Edefvr = \empty - \let\clear = \relax - \let\down = \relax - \let\evenfooting = \relax - \let\evenheading = \relax - \let\everyfooting = \relax - \let\everyheading = \relax - \let\headings = \relax - \let\include = \relax - \let\item = \relax - \let\lowersections = \relax - \let\oddfooting = \relax - \let\oddheading = \relax - \let\printindex = \relax - \let\pxref = \relax - \let\raisesections = \relax - \let\ref = \relax - \let\set = \relax - \let\setchapternewpage = \relax - \let\setchapterstyle = \relax - \let\settitle = \relax - \let\up = \relax - \let\verbatiminclude = \relax - \let\xref = \relax + +% @iftex, @ifnotdocbook, @ifnothtml, @ifnotinfo, @ifnotplaintext, +% @ifnotxml always succeed. They currently do nothing; we don't +% attempt to check whether the conditionals are properly nested. But we +% have to remember that they are conditionals, so that @end doesn't +% attempt to close an environment group. +% +\def\makecond#1{% + \expandafter\let\csname #1\endcsname = \relax + \expandafter\let\csname iscond.#1\endcsname = 1 } +\makecond{iftex} +\makecond{ifnotdocbook} +\makecond{ifnothtml} +\makecond{ifnotinfo} +\makecond{ifnotplaintext} +\makecond{ifnotxml} % Ignore @ignore, @ifhtml, @ifinfo, and the like. % \def\direntry{\doignore{direntry}} -\def\documentdescriptionword{documentdescription} \def\documentdescription{\doignore{documentdescription}} +\def\docbook{\doignore{docbook}} \def\html{\doignore{html}} +\def\ifdocbook{\doignore{ifdocbook}} \def\ifhtml{\doignore{ifhtml}} \def\ifinfo{\doignore{ifinfo}} \def\ifnottex{\doignore{ifnottex}} @@ -2599,198 +2743,133 @@ width0pt\relax} \fi \def\menu{\doignore{menu}} \def\xml{\doignore{xml}} -% @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'. +% Ignore text until a line `@end #1', keeping track of nested conditionals. % +% A count to remember the depth of nesting. +\newcount\doignorecount + \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'. - % This @ is a catcode 12 token (that is the normal catcode of @ in - % this texinfo.tex file). We change the catcode of @ below to match. - \long\def\doignoretext##1@end #1{\enddoignore}% + % Scan in ``verbatim'' mode: + \catcode`\@ = \other + \catcode`\{ = \other + \catcode`\} = \other % % Make sure that spaces turn into tokens that match what \doignoretext wants. - \catcode\spaceChar = 10 - % - % Ignore braces, too, so mismatched braces don't cause trouble. - \catcode`\{ = 9 - \catcode`\} = 9 + \spaceisspace % - % We must not have @c interpreted as a control sequence. - \catcode`\@ = 12 + % Count number of #1's that we've seen. + \doignorecount = 0 % - \def\ignoreword{#1}% - \ifx\ignoreword\documentdescriptionword - % The c kludge breaks documentdescription, since - % `documentdescription' contains a `c'. Means not everything will - % be ignored inside @documentdescription, but oh well... - \else - % Make the letter c a comment character so that the rest of the line - % will be ignored. This way, the document can have (for example) - % @c @end ifinfo - % and the @end ifinfo will be properly ignored. - % (We've just changed @ to catcode 12.) - \catcode`\c = 14 - \fi - % - % And now expand the command defined above. - \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.org/non-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 + % Swallow text until we reach the matching `@end #1'. + \dodoignore {#1}% } -% **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 chance of memory overflow, we follow the approach outlined on - % page 401 of the TeXbook. +{ \catcode`_=11 % We want to use \_STOP_ which cannot appear in texinfo source. + \obeylines % % - \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 some sites - % might not 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. - \let\smallrm=\nullfont \let\smallit=\nullfont \let\smallsl=\nullfont - \let\smallbf=\nullfont \let\smalltt=\nullfont \let\smallsc=\nullfont - \let\smallsf=\nullfont - % Similarly for smallexample fonts. - \let\smallerrm=\nullfont \let\smallerit=\nullfont \let\smallersl=\nullfont - \let\smallerbf=\nullfont \let\smallertt=\nullfont \let\smallersc=\nullfont - \let\smallersf=\nullfont - % - % Don't complain when characters are missing from the fonts. - \tracinglostchars = 0 + \gdef\dodoignore#1{% + % #1 contains the string `ifinfo'. % - % Don't bother to do space factor calculations. - \frenchspacing - % - % Don't report underfull hboxes. - \hbadness = 10000 - % - % Do minimal line-breaking. - \pretolerance = 10000 + % Define a command to find the next `@end #1', which must be on a line + % by itself. + \long\def\doignoretext##1^^M@end #1{\doignoretextyyy##1^^M@#1\_STOP_}% + % And this command to find another #1 command, at the beginning of a + % line. (Otherwise, we would consider a line `@c @ifset', for + % example, to count as an @ifset for nesting.) + \long\def\doignoretextyyy##1^^M@#1##2\_STOP_{\doignoreyyy{##2}\_STOP_}% % - % Do not execute instructions in @tex. - \def\tex{\doignore{tex}}% - % Do not execute macro definitions. - % `c' is a comment character, so the word `macro' will get cut off. - \def\macro{\doignore{ma}}% + % And now expand that command. + \obeylines % + \doignoretext ^^M% + }% } +\def\doignoreyyy#1{% + \def\temp{#1}% + \ifx\temp\empty % Nothing found. + \let\next\doignoretextzzz + \else % Found a nested condition, ... + \advance\doignorecount by 1 + \let\next\doignoretextyyy % ..., look for another. + % If we're here, #1 ends with ^^M\ifinfo (for example). + \fi + \next #1% the token \_STOP_ is present just after this macro. +} + +% We have to swallow the remaining "\_STOP_". +% +\def\doignoretextzzz#1{% + \ifnum\doignorecount = 0 % We have just found the outermost @end. + \let\next\enddoignore + \else % Still inside a nested condition. + \advance\doignorecount by -1 + \let\next\doignoretext % Look for the next @end. + \fi + \next +} + +% Finish off ignored text. +\def\enddoignore{\endgroup\ignorespaces} + + % @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. +% didn't need it. +% We rely on the fact that \parsearg sets \catcode`\ =10. % -\def\set{\begingroup\catcode` =10 - \catcode`\-=12 \catcode`\_=12 % Allow - and _ in VAR. - \parsearg\setxxx} -\def\setxxx#1{\setyyy#1 \endsetyyy} +\parseargdef\set{\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 + {% + \makevalueexpandable + \def\temp{#2}% + \edef\next{\gdef\makecsname{SET#1}}% + \ifx\temp\empty + \next{}% + \else + \setzzz#2\endsetzzz + \fi + }% } -% 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}} +% Remove the trailing space \setxxx inserted. +\def\setzzz#1 \endsetzzz{\next{#1}} % @clear VAR clears (i.e., unsets) the variable VAR. % -\def\clear{\parsearg\clearxxx} -\def\clearxxx#1{\global\expandafter\let\csname SET#1\endcsname=\relax} +\parseargdef\clear{% + {% + \makevalueexpandable + \global\expandafter\let\csname SET#1\endcsname=\relax + }% +} % @value{foo} gets the text saved in variable foo. +\def\value{\begingroup\makevalueexpandable\valuexxx} +\def\valuexxx#1{\expandablevalue{#1}\endgroup} { - \catcode`\_ = \active + \catcode`\- = \active \catcode`\_ = \active % - % We might end up with active _ or - characters in the argument if - % we're called from @code, as @code{@value{foo-bar_}}. So \let any - % such active characters to their normal equivalents. - \gdef\value{\begingroup + \gdef\makevalueexpandable{% + \let\value = \expandablevalue + % We don't want these characters active, ... \catcode`\-=\other \catcode`\_=\other - \indexbreaks \let_\normalunderscore - \valuexxx} + % ..., but we might end up with active ones in the argument if + % we're called from @code, as @code{@value{foo-bar_}}, though. + % So \let them to their normal equivalents. + \let-\realdash \let_\normalunderscore + } } -\def\valuexxx#1{\expandablevalue{#1}\endgroup} % We have this subroutine so that we can handle at least some @value's -% properly in indexes (we \let\value to this in \indexdummies). Ones -% whose names contain - or _ still won't work, but we can't do anything -% about that. The command has to be fully expandable (if the variable -% is set), since the result winds up in the index file. This means that -% if the variable's value contains other Texinfo commands, it's almost -% certain it will fail (although perhaps we could fix that with -% sufficient work to do a one-level expansion on the result, instead of -% complete). +% properly in indexes (we call \makevalueexpandable in \indexdummies). +% The command has to be fully expandable (if the variable is set), since +% the result winds up in the index file. This means that if the +% variable's value contains other Texinfo commands, it's almost certain +% it will fail (although perhaps we could fix that with sufficient work +% to do a one-level expansion on the result, instead of complete). % \def\expandablevalue#1{% \expandafter\ifx\csname SET#1\endcsname\relax @@ -2804,55 +2883,36 @@ width0pt\relax} \fi % @ifset VAR ... @end ifset reads the `...' iff VAR has been defined % with @set. % -\def\ifset{\parsearg\doifset} -\def\doifset#1{% - \expandafter\ifx\csname SET#1\endcsname\relax - \let\next=\ifsetfail - \else - \let\next=\ifsetsucceed - \fi - \next +% To get special treatment of `@end ifset,' call \makeond and the redefine. +% +\makecond{ifset} +\def\ifset{\parsearg{\doifset{\let\next=\ifsetfail}}} +\def\doifset#1#2{% + {% + \makevalueexpandable + \let\next=\empty + \expandafter\ifx\csname SET#2\endcsname\relax + #1% If not set, redefine \next. + \fi + \expandafter + }\next } -\def\ifsetsucceed{\conditionalsucceed{ifset}} -\def\ifsetfail{\nestedignore{ifset}} -\defineunmatchedend{ifset} +\def\ifsetfail{\doignore{ifset}} % @ifclear VAR ... @end ifclear reads the `...' iff VAR has never been % defined with @set, or has been undefined with @clear. % -\def\ifclear{\parsearg\doifclear} -\def\doifclear#1{% - \expandafter\ifx\csname SET#1\endcsname\relax - \let\next=\ifclearsucceed - \else - \let\next=\ifclearfail - \fi - \next -} -\def\ifclearsucceed{\conditionalsucceed{ifclear}} -\def\ifclearfail{\nestedignore{ifclear}} -\defineunmatchedend{ifclear} - -% @iftex, @ifnothtml, @ifnotinfo, @ifnotplaintext always succeed; we -% read the text following, through the first @end iftex (etc.). Make -% `@end iftex' (etc.) valid only after an @iftex. +% The `\else' inside the `\doifset' parameter is a trick to reuse the +% above code: if the variable is not set, do nothing, if it is set, +% then redefine \next to \ifclearfail. % -\def\iftex{\conditionalsucceed{iftex}} -\def\ifnothtml{\conditionalsucceed{ifnothtml}} -\def\ifnotinfo{\conditionalsucceed{ifnotinfo}} -\def\ifnotplaintext{\conditionalsucceed{ifnotplaintext}} -\defineunmatchedend{iftex} -\defineunmatchedend{ifnothtml} -\defineunmatchedend{ifnotinfo} -\defineunmatchedend{ifnotplaintext} +\makecond{ifclear} +\def\ifclear{\parsearg{\doifset{\else \let\next=\ifclearfail}}} +\def\ifclearfail{\doignore{ifclear}} -% True conditional. Since \set globally defines its variables, we can -% just start and end a group (to keep the @end definition undefined at -% the outer level). -% -\def\conditionalsucceed#1{\begingroup - \expandafter\def\csname E#1\endcsname{\endgroup}% -} +% @dircategory CATEGORY -- specify a category of the dir file +% which this file should belong to. Ignore this in TeX. +\let\dircategory=\comment % @defininfoenclose. \let\definfoenclose=\comment @@ -2903,10 +2963,10 @@ width0pt\relax} \fi % @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. -% +% % @syncodeindex foo bar similar, but put all entries made for index foo % inside @code. -% +% \def\synindex#1 #2 {\dosynindex\doindex{#1}{#2}} \def\syncodeindex#1 #2 {\dosynindex\docodeindex{#1}{#2}} @@ -2948,13 +3008,13 @@ width0pt\relax} \fi % Take care of Texinfo commands that can appear in an index entry. % Since there are some commands we want to expand, and others we don't, % we have to laboriously prevent expansion for those that we don't. -% +% \def\indexdummies{% \def\@{@}% change to @@ when we switch to @ as escape char in index files. \def\ {\realbackslash\space }% % Need these in case \tex is in effect and \{ is a \delimiter again. % But can't use \lbracecmd and \rbracecmd because texindex assumes - % braces and backslashes are used only as delimiters. + % braces and backslashes are used only as delimiters. \let\{ = \mylbrace \let\} = \myrbrace % @@ -2963,14 +3023,14 @@ width0pt\relax} \fi % words, not control letters, because the \space would be incorrect % for control characters, but is needed to separate the control word % from whatever follows. - % + % % For control letters, we have \definedummyletter, which omits the % space. - % + % % These can be used both for control words that take an argument and % those that do not. If it is followed by {arg} in the input, then % that will dutifully get written to the index (or wherever). - % + % \def\definedummyword##1{% \expandafter\def\csname ##1\endcsname{\realbackslash ##1\space}% }% @@ -2983,9 +3043,9 @@ width0pt\relax} \fi } % For the aux file, @ is the escape character. So we want to redefine -% everything using @ instead of \realbackslash. When everything uses +% everything using @ instead of \realbackslash. When everything uses % @, this will be simpler. -% +% \def\atdummies{% \def\@{@@}% \def\ {@ }% @@ -3006,31 +3066,16 @@ width0pt\relax} \fi % Called from \indexdummies and \atdummies. \definedummyword and % \definedummyletter must be defined first. -% +% \def\commondummies{% % \normalturnoffactive % - % Control letters and accents. + \commondummiesnofonts + % \definedummyletter{_}% - \definedummyletter{,}% - \definedummyletter{"}% - \definedummyletter{`}% - \definedummyletter{'}% - \definedummyletter{^}% - \definedummyletter{~}% - \definedummyletter{=}% - \definedummyword{u}% - \definedummyword{v}% - \definedummyword{H}% - \definedummyword{dotaccent}% - \definedummyword{ringaccent}% - \definedummyword{tieaccent}% - \definedummyword{ubaraccent}% - \definedummyword{udotaccent}% - \definedummyword{dotless}% - % - % Other non-English letters. + % + % Non-English letters. \definedummyword{AA}% \definedummyword{AE}% \definedummyword{L}% @@ -3042,6 +3087,10 @@ width0pt\relax} \fi \definedummyword{oe}% \definedummyword{o}% \definedummyword{ss}% + \definedummyword{exclamdown}% + \definedummyword{questiondown}% + \definedummyword{ordf}% + \definedummyword{ordm}% % % Although these internal commands shouldn't show up, sometimes they do. \definedummyword{bf}% @@ -3053,37 +3102,13 @@ width0pt\relax} \fi \definedummyword{tclose}% \definedummyword{tt}% % - % Texinfo font commands. - \definedummyword{b}% - \definedummyword{i}% - \definedummyword{r}% - \definedummyword{sc}% - \definedummyword{t}% - % + \definedummyword{LaTeX}% \definedummyword{TeX}% - \definedummyword{acronym}% - \definedummyword{cite}% - \definedummyword{code}% - \definedummyword{command}% - \definedummyword{dfn}% - \definedummyword{dots}% - \definedummyword{emph}% - \definedummyword{env}% - \definedummyword{file}% - \definedummyword{kbd}% - \definedummyword{key}% - \definedummyword{math}% - \definedummyword{option}% - \definedummyword{samp}% - \definedummyword{strong}% - \definedummyword{uref}% - \definedummyword{url}% - \definedummyword{var}% - \definedummyword{w}% % % Assorted special characters. \definedummyword{bullet}% \definedummyword{copyright}% + \definedummyword{registeredsymbol}% \definedummyword{dots}% \definedummyword{enddots}% \definedummyword{equiv}% @@ -3095,10 +3120,9 @@ width0pt\relax} \fi \definedummyword{print}% \definedummyword{result}% % - % Handle some cases of @value -- where the variable name does not - % contain - or _, and the value does not contain any + % Handle some cases of @value -- where it does not contain any % (non-fully-expandable) commands. - \let\value = \expandablevalue + \makevalueexpandable % % Normal spaces, not active ones. \unsepspaces @@ -3107,45 +3131,91 @@ width0pt\relax} \fi \turnoffmacros } -% 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}} - +% \commondummiesnofonts: common to \commondummies and \indexnofonts. +% +% Better have this without active chars. +{ + \catcode`\~=\other + \gdef\commondummiesnofonts{% + % Control letters and accents. + \definedummyletter{!}% + \definedummyletter{"}% + \definedummyletter{'}% + \definedummyletter{*}% + \definedummyletter{,}% + \definedummyletter{.}% + \definedummyletter{/}% + \definedummyletter{:}% + \definedummyletter{=}% + \definedummyletter{?}% + \definedummyletter{^}% + \definedummyletter{`}% + \definedummyletter{~}% + \definedummyword{u}% + \definedummyword{v}% + \definedummyword{H}% + \definedummyword{dotaccent}% + \definedummyword{ringaccent}% + \definedummyword{tieaccent}% + \definedummyword{ubaraccent}% + \definedummyword{udotaccent}% + \definedummyword{dotless}% + % + % Texinfo font commands. + \definedummyword{b}% + \definedummyword{i}% + \definedummyword{r}% + \definedummyword{sc}% + \definedummyword{t}% + % + % Commands that take arguments. + \definedummyword{acronym}% + \definedummyword{cite}% + \definedummyword{code}% + \definedummyword{command}% + \definedummyword{dfn}% + \definedummyword{emph}% + \definedummyword{env}% + \definedummyword{file}% + \definedummyword{kbd}% + \definedummyword{key}% + \definedummyword{math}% + \definedummyword{option}% + \definedummyword{samp}% + \definedummyword{strong}% + \definedummyword{tie}% + \definedummyword{uref}% + \definedummyword{url}% + \definedummyword{var}% + \definedummyword{verb}% + \definedummyword{w}% + } +} % \indexnofonts is used when outputting the strings to sort the index % by, and when constructing control sequence names. It eliminates all % control sequences and just writes whatever the best ASCII sort string % would be for a given command (usually its argument). % -\def\indexdummytex{TeX} -\def\indexdummydots{...} -% \def\indexnofonts{% + \def\definedummyword##1{% + \expandafter\let\csname ##1\endcsname\asis + }% + \let\definedummyletter=\definedummyword + % + \commondummiesnofonts + % + % Don't no-op \tt, since it isn't a user-level command + % and is used in the definitions of the active chars like <, >, |, etc. + % Likewise with the other plain tex font commands. + %\let\tt=\asis + % \def\ { }% \def\@{@}% % how to handle braces? \def\_{\normalunderscore}% % - \let\,=\asis - \let\"=\asis - \let\`=\asis - \let\'=\asis - \let\^=\asis - \let\~=\asis - \let\==\asis - \let\u=\asis - \let\v=\asis - \let\H=\asis - \let\dotaccent=\asis - \let\ringaccent=\asis - \let\tieaccent=\asis - \let\ubaraccent=\asis - \let\udotaccent=\asis - \let\dotless=\asis - % - % Other non-English letters. + % Non-English letters. \def\AA{AA}% \def\AE{AE}% \def\L{L}% @@ -3159,130 +3229,164 @@ width0pt\relax} \fi \def\ss{ss}% \def\exclamdown{!}% \def\questiondown{?}% + \def\ordf{a}% + \def\ordm{o}% % - % Don't no-op \tt, since it isn't a user-level command - % and is used in the definitions of the active chars like <, >, |, etc. - % Likewise with the other plain tex font commands. - %\let\tt=\asis + \def\LaTeX{LaTeX}% + \def\TeX{TeX}% % - % Texinfo font commands. - \let\b=\asis - \let\i=\asis - \let\r=\asis - \let\sc=\asis - \let\t=\asis - % - \let\TeX=\indexdummytex - \let\acronym=\asis - \let\cite=\asis - \let\code=\asis - \let\command=\asis - \let\dfn=\asis - \let\dots=\indexdummydots - \let\emph=\asis - \let\env=\asis - \let\file=\asis - \let\kbd=\asis - \let\key=\asis - \let\math=\asis - \let\option=\asis - \let\samp=\asis - \let\strong=\asis - \let\uref=\asis - \let\url=\asis - \let\var=\asis - \let\w=\asis + % Assorted special characters. + % (The following {} will end up in the sort string, but that's ok.) + \def\bullet{bullet}% + \def\copyright{copyright}% + \def\registeredsymbol{R}% + \def\dots{...}% + \def\enddots{...}% + \def\equiv{==}% + \def\error{error}% + \def\expansion{==>}% + \def\minus{-}% + \def\pounds{pounds}% + \def\point{.}% + \def\print{-|}% + \def\result{=>}% } \let\indexbackslash=0 %overridden during \printindex. \let\SETmarginindex=\relax % put index entries in margin (undocumented)? -% For \ifx comparisons. -\def\emptymacro{\empty} - % Most index entries go through here, but \dosubind is the general case. -% -\def\doind#1#2{\dosubind{#1}{#2}\empty} +% #1 is the index name, #2 is the entry text. +\def\doind#1#2{\dosubind{#1}{#2}{}} % Workhorse for all \fooindexes. % #1 is name of index, #2 is stuff to put there, #3 is subentry -- -% \empty if called from \doind, as we usually are. The main exception -% is with defuns, which call us directly. +% empty if called from \doind, as we usually are (the main exception +% is with most defuns, which call us directly). % \def\dosubind#1#2#3{% + \iflinks + {% + % Store the main index entry text (including the third arg). + \toks0 = {#2}% + % If third arg is present, precede it with a space. + \def\thirdarg{#3}% + \ifx\thirdarg\empty \else + \toks0 = \expandafter{\the\toks0 \space #3}% + \fi + % + \edef\writeto{\csname#1indfile\endcsname}% + % + \ifvmode + \dosubindsanitize + \else + \dosubindwrite + \fi + }% + \fi +} + +% Write the entry in \toks0 to the index file: +% +\def\dosubindwrite{% % Put the index entry in the margin if desired. \ifx\SETmarginindex\relax\else - \insert\margin{\hbox{\vrule height8pt depth3pt width0pt #2}}% + \insert\margin{\hbox{\vrule height8pt depth3pt width0pt \the\toks0}}% \fi - {% - \count255=\lastpenalty - {% - \indexdummies % Must do this here, since \bf, etc expand at this stage - \escapechar=`\\ - {% - \let\folio = 0% We will 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. - % - % The main index entry text. - \toks0 = {#2}% - % - % If third arg is present, precede it with space in sort key. - \def\thirdarg{#3}% - \ifx\thirdarg\emptymacro \else - % If the third (subentry) arg is present, add it to the index - % line to write. - \toks0 = \expandafter{\the\toks0 \space #3}% - \fi - % - % Process the index entry with all font commands turned off, to - % get the string to sort by. - {\indexnofonts - \edef\temp{\the\toks0}% need full expansion - \xdef\indexsorttmp{\temp}% - }% - % - % Set up the complete index entry, with both the sort key and - % the original text, including any font commands. We write - % three arguments to \entry to the .?? file (four in the - % subentry case), texindex reduces to two when writing the .??s - % sorted result. - \edef\temp{% - \write\csname#1indfile\endcsname{% - \realbackslash entry{\indexsorttmp}{\folio}{\the\toks0}}% - }% - % - % If a skip is the last thing on the list now, preserve it - % by backing up by \lastskip, doing the \write, then inserting - % the skip again. Otherwise, the whatsit generated by the - % \write will make \lastskip zero. The result is that sequences - % like this: - % @end defun - % @tindex whatever - % @defun ... - % will have extra space inserted, because the \medbreak in the - % start of the @defun won't see the skip inserted by the @end of - % the previous defun. - % - % But don't do any of this if we're not in vertical mode. We - % don't want to do a \vskip and prematurely end a paragraph. - % - % Avoid page breaks due to these extra skips, too. - % - \iflinks - \ifvmode - \skip0 = \lastskip - \ifdim\lastskip = 0pt \else \nobreak\vskip-\skip0 \fi - \fi - % - \temp % do the write - % - \ifvmode \ifdim\skip0 = 0pt \else \nobreak\vskip\skip0 \fi \fi - \fi - }% - }% - \penalty\count255 + % + % Remember, we are within a group. + \indexdummies % Must do this here, since \bf, etc expand at this stage + \escapechar=`\\ + \def\backslashcurfont{\indexbackslash}% \indexbackslash isn't defined now + % so it will be output as is; and it will print as backslash. + % + % Process the index entry with all font commands turned off, to + % get the string to sort by. + {\indexnofonts + \edef\temp{\the\toks0}% need full expansion + \xdef\indexsorttmp{\temp}% + }% + % + % Set up the complete index entry, with both the sort key and + % the original text, including any font commands. We write + % three arguments to \entry to the .?? file (four in the + % subentry case), texindex reduces to two when writing the .??s + % sorted result. + \edef\temp{% + \write\writeto{% + \string\entry{\indexsorttmp}{\noexpand\folio}{\the\toks0}}% }% + \temp +} + +% Take care of unwanted page breaks: +% +% If a skip is the last thing on the list now, preserve it +% by backing up by \lastskip, doing the \write, then inserting +% the skip again. Otherwise, the whatsit generated by the +% \write will make \lastskip zero. The result is that sequences +% like this: +% @end defun +% @tindex whatever +% @defun ... +% will have extra space inserted, because the \medbreak in the +% start of the @defun won't see the skip inserted by the @end of +% the previous defun. +% +% But don't do any of this if we're not in vertical mode. We +% don't want to do a \vskip and prematurely end a paragraph. +% +% Avoid page breaks due to these extra skips, too. +% +% But wait, there is a catch there: +% We'll have to check whether \lastskip is zero skip. \ifdim is not +% sufficient for this purpose, as it ignores stretch and shrink parts +% of the skip. The only way seems to be to check the textual +% representation of the skip. +% +% The following is almost like \def\zeroskipmacro{0.0pt} except that +% the ``p'' and ``t'' characters have catcode \other, not 11 (letter). +% +\edef\zeroskipmacro{\expandafter\the\csname z@skip\endcsname} +% +% ..., ready, GO: +% +\def\dosubindsanitize{% + % \lastskip and \lastpenalty cannot both be nonzero simultaneously. + \skip0 = \lastskip + \edef\lastskipmacro{\the\lastskip}% + \count255 = \lastpenalty + % + % If \lastskip is nonzero, that means the last item was a + % skip. And since a skip is discardable, that means this + % -\skip0 glue we're inserting is preceded by a + % non-discardable item, therefore it is not a potential + % breakpoint, therefore no \nobreak needed. + \ifx\lastskipmacro\zeroskipmacro + \else + \vskip-\skip0 + \fi + % + \dosubindwrite + % + \ifx\lastskipmacro\zeroskipmacro + % if \lastskip was zero, perhaps the last item was a + % penalty, and perhaps it was >=10000, e.g., a \nobreak. + % In that case, we want to re-insert the penalty; since we + % just inserted a non-discardable item, any following glue + % (such as a \parskip) would be a breakpoint. For example: + % @deffn deffn-whatever + % @vindex index-whatever + % Description. + % would allow a break between the index-whatever whatsit + % and the "Description." paragraph. + \ifnum\count255>9999 \nobreak \fi + \else + % On the other hand, if we had a nonzero \lastskip, + % this make-up glue would be preceded by a non-discardable item + % (the whatsit from the \write), so we must insert a \nobreak. + \nobreak\vskip\skip0 + \fi } % The index entry written in the file actually looks like @@ -3320,13 +3424,12 @@ width0pt\relax} \fi % @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 +\parseargdef\printindex{\begingroup \dobreak \chapheadingskip{10000}% % \smallfonts \rm \tolerance = 9500 - \indexbreaks + \everypar = {}% don't want the \kern\-parindent from indentation suppression. % % See if the index file exists and is nonempty. % Change catcode of @ here so that if the index file contains @@ -3353,7 +3456,7 @@ width0pt\relax} \fi % 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}% + \def\indexbackslash{\backslashcurfont}% \catcode`\\ = 0 \escapechar = `\\ \begindoublecolumns @@ -3391,74 +3494,95 @@ width0pt\relax} \fi \nobreak }} -% 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. +% \entry typesets a paragraph consisting of the text (#1), dot leaders, and +% then page number (#2) flushed 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 - % - % Start a new paragraph if necessary, so our assignments below can't - % affect previous text. - \par - % - % Do not fill out the last line with white space. - \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 - % - % A bit of stretch before each entry for the benefit of balancing columns. - \vskip 0pt plus1pt - % - % Start a ``paragraph'' for the index entry so the line breaking - % parameters we've set above will have an effect. - \noindent - % - % Insert the text of the index entry. TeX will do line-breaking on it. - #1% - % The following is kludged to not output a line of dots in the index if - % there are no page numbers. The next person who breaks this will be - % cursed by a Unix daemon. - \def\tempa{{\rm }}% - \def\tempb{#2}% - \edef\tempc{\tempa}% - \edef\tempd{\tempb}% - \ifx\tempc\tempd\ \else% +% A straightforward implementation would start like this: +% \def\entry#1#2{... +% But this frozes the catcodes in the argument, and can cause problems to +% @code, which sets - active. This problem was fixed by a kludge--- +% ``-'' was active throughout whole index, but this isn't really right. +% +% The right solution is to prevent \entry from swallowing the whole text. +% --kasal, 21nov03 +\def\entry{% + \begingroup + % + % Start a new paragraph if necessary, so our assignments below can't + % affect previous text. + \par + % + % Do not fill out the last line with white space. + \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 % - % 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. + % When the entry text needs to be broken, just fill out the first line + % with blank space. + \rightskip = 0pt plus1fil % - % The `\ ' here is removed by the implicit \unskip that TeX does as - % part of (the primitive) \par. Without it, a spurious underfull - % \hbox ensues. - \ifpdf - \pdfgettoks#2.\ \the\toksA % The page number ends the paragraph. + % A bit of stretch before each entry for the benefit of balancing + % columns. + \vskip 0pt plus1pt + % + % Swallow the left brace of the text (first parameter): + \afterassignment\doentry + \let\temp = +} +\def\doentry{% + \bgroup % Instead of the swallowed brace. + \noindent + \aftergroup\finishentry + % And now comes the text of the entry. +} +\def\finishentry#1{% + % #1 is the page number. + % + % The following is kludged to not output a line of dots in the index if + % there are no page numbers. The next person who breaks this will be + % cursed by a Unix daemon. + \def\tempa{{\rm }}% + \def\tempb{#1}% + \edef\tempc{\tempa}% + \edef\tempd{\tempb}% + \ifx\tempc\tempd + \ % \else - \ #2% The page number ends the paragraph. + % + % 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. + \ifpdf + \pdfgettoks#1.% + \ \the\toksA + \else + \ #1% + \fi \fi - \fi% - \par -\endgroup} + \par + \endgroup +} % Like \dotfill except takes at least 1 em. \def\indexdotfill{\cleaders @@ -3569,7 +3693,7 @@ width0pt\relax} \fi \wd0=\hsize \wd2=\hsize \hbox to\pagewidth{\box0\hfil\box2}% } -% +% % All done with double columns. \def\enddoublecolumns{% \output = {% @@ -3627,6 +3751,12 @@ width0pt\relax} \fi \message{sectioning,} % Chapters, sections, etc. +% \unnumberedno is an oxymoron, of course. But we count the unnumbered +% sections so that we can refer to them unambiguously in the pdf +% outlines by their "section number". We avoid collisions with chapter +% numbers by starting them at 10000. (If a document ever has 10000 +% chapters, we're in trouble anyway, I'm sure.) +\newcount\unnumberedno \unnumberedno = 10000 \newcount\chapno \newcount\secno \secno=0 \newcount\subsecno \subsecno=0 @@ -3634,9 +3764,12 @@ width0pt\relax} \fi % This counter is funny since it counts through charcodes of letters A, B, ... \newcount\appendixno \appendixno = `\@ +% % \def\appendixletter{\char\the\appendixno} -% We do the following for the sake of pdftex, which needs the actual +% We do the following ugly conditional instead of the above simple +% construct for the sake of pdftex, which needs the actual % letter in the expansion, not just typeset. +% \def\appendixletter{% \ifnum\appendixno=`A A% \else\ifnum\appendixno=`B B% @@ -3674,11 +3807,12 @@ width0pt\relax} \fi % Each @chapter defines this as the name of the chapter. % page headings and footings can use it. @section does likewise. +% However, they are not reliable, because we don't use marks. \def\thischapter{} \def\thissection{} \newcount\absseclevel % used to calculate proper heading level -\newcount\secbase\secbase=0 % @raise/lowersections modify this count +\newcount\secbase\secbase=0 % @raisesections/@lowersections modify this count % @raisesections: treat @section as chapter, @subsection as section, etc. \def\raisesections{\global\advance\secbase by -1} @@ -3693,113 +3827,105 @@ width0pt\relax} \fi % #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} + \chapterzzz{#2}% + \or \seczzz{#2}% + \or \numberedsubseczzz{#2}% + \or \numberedsubsubseczzz{#2}% \else - \numberedsubsubseczzz{#2} + \ifnum \absseclevel<0 \chapterzzz{#2}% + \else \numberedsubsubseczzz{#2}% + \fi \fi -\fi + \suppressfirstparagraphindent } % 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} + \appendixzzz{#2}% + \or \appendixsectionzzz{#2}% + \or \appendixsubseczzz{#2}% + \or \appendixsubsubseczzz{#2}% \else - \appendixsubsubseczzz{#2} + \ifnum \absseclevel<0 \appendixzzz{#2}% + \else \appendixsubsubseczzz{#2}% + \fi \fi -\fi + \suppressfirstparagraphindent } % 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} + \ifcase\absseclevel + \unnumberedzzz{#2}% + \or \unnumberedseczzz{#2}% + \or \unnumberedsubseczzz{#2}% + \or \unnumberedsubsubseczzz{#2}% \else - \unnumberedsubsubseczzz{#2} + \ifnum \absseclevel<0 \unnumberedzzz{#2}% + \else \unnumberedsubsubseczzz{#2}% + \fi \fi -\fi + \suppressfirstparagraphindent } -% @chapter, @appendix, @unnumbered. -\def\thischaptername{No Chapter Title} -\outer\def\chapter{\parsearg\chapteryyy} -\def\chapteryyy #1{\numhead0{#1}} % normally numhead0 calls chapterzzz -\def\chapterzzz #1{% - \secno=0 \subsecno=0 \subsubsecno=0 - \global\advance \chapno by 1 \message{\putwordChapter\space \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{\putwordChapter{} \the\chapno: \noexpand\thischaptername}% - \writetocentry{chap}{#1}{{\the\chapno}} - \donoderef +% @chapter, @appendix, @unnumbered. Increment top-level counter, reset +% all lower-level sectioning counters to zero. +% +% Also set \chaplevelprefix, which we prepend to @float sequence numbers +% (e.g., figures), q.v. By default (before any chapter), that is empty. +\let\chaplevelprefix = \empty +% +\outer\parseargdef\chapter{\numhead0{#1}} % normally numhead0 calls chapterzzz +\def\chapterzzz#1{% + % section resetting is \global in case the chapter is in a group, such + % as an @include file. + \global\secno=0 \global\subsecno=0 \global\subsubsecno=0 + \global\advance\chapno by 1 + % + % Used for \float. + \gdef\chaplevelprefix{\the\chapno.}% + \resetallfloatnos + % + \message{\putwordChapter\space \the\chapno}% + % + % Write the actual heading. + \chapmacro{#1}{Ynumbered}{\the\chapno}% + % + % So @section and the like are numbered underneath this chapter. \global\let\section = \numberedsec \global\let\subsection = \numberedsubsec \global\let\subsubsection = \numberedsubsubsec } -% we use \chapno to avoid indenting back -\def\appendixbox#1{% - \setbox0 = \hbox{\putwordAppendix{} \the\chapno}% - \hbox to \wd0{#1\hss}} - -\outer\def\appendix{\parsearg\appendixyyy} -\def\appendixyyy #1{\apphead0{#1}} % normally apphead0 calls appendixzzz -\def\appendixzzz #1{% - \secno=0 \subsecno=0 \subsubsecno=0 - \global\advance \appendixno by 1 - \message{\putwordAppendix\space \appendixletter}% - \chapmacro {#1}{\appendixbox{\putwordAppendix{} \appendixletter}}% - \gdef\thissection{#1}% - \gdef\thischaptername{#1}% - \xdef\thischapter{\putwordAppendix{} \appendixletter: \noexpand\thischaptername}% - \writetocentry{appendix}{#1}{{\appendixletter}} - \appendixnoderef +\outer\parseargdef\appendix{\apphead0{#1}} % normally apphead0 calls appendixzzz +\def\appendixzzz#1{% + \global\secno=0 \global\subsecno=0 \global\subsubsecno=0 + \global\advance\appendixno by 1 + \gdef\chaplevelprefix{\appendixletter.}% + \resetallfloatnos + % + \def\appendixnum{\putwordAppendix\space \appendixletter}% + \message{\appendixnum}% + % + \chapmacro{#1}{Yappendix}{\appendixletter}% + % \global\let\section = \appendixsec \global\let\subsection = \appendixsubsec \global\let\subsubsection = \appendixsubsubsec } % @centerchap is like @unnumbered, but the heading is centered. -\outer\def\centerchap{\parsearg\centerchapyyy} -\def\centerchapyyy #1{{\let\unnumbchapmacro=\centerchapmacro \unnumberedyyy{#1}}} +\outer\parseargdef\centerchap{{\unnumberedyyy{#1}}} -% @top is like @unnumbered. -\outer\def\top{\parsearg\unnumberedyyy} - -\outer\def\unnumbered{\parsearg\unnumberedyyy} -\def\unnumberedyyy #1{\unnmhead0{#1}} % normally unnmhead0 calls unnumberedzzz -\def\unnumberedzzz #1{% - \secno=0 \subsecno=0 \subsubsecno=0 +\outer\parseargdef\unnumbered{\unnmhead0{#1}} % normally unnmhead0 calls unnumberedzzz +\def\unnumberedzzz#1{% + \global\secno=0 \global\subsecno=0 \global\subsubsecno=0 + \global\advance\unnumberedno by 1 + % + % Since an unnumbered has no number, no prefix for figures. + \global\let\chaplevelprefix = \empty + \resetallfloatnos % % This used to be simply \message{#1}, but TeX fully expands the % argument to \message. Therefore, if #1 contained @-commands, TeX @@ -3812,112 +3938,84 @@ width0pt\relax} \fi % \the<toks register> to achieve this: TeX expands \the<toks> only once, % simply yielding the contents of <toks register>. (We also do this for % the toc entries.) - \toks0 = {#1}\message{(\the\toks0)}% + \toks0 = {#1}% + \message{(\the\toks0)}% + % + \chapmacro{#1}{Ynothing}{\the\unnumberedno}% % - \unnumbchapmacro {#1}% - \gdef\thischapter{#1}\gdef\thissection{#1}% - \writetocentry{unnumbchap}{#1}{{\the\chapno}} - \unnumbnoderef \global\let\section = \unnumberedsec \global\let\subsection = \unnumberedsubsec \global\let\subsubsection = \unnumberedsubsubsec } +% @top is like @unnumbered. +\let\top\unnumbered + % Sections. -\outer\def\numberedsec{\parsearg\secyyy} -\def\secyyy #1{\numhead1{#1}} % normally calls seczzz -\def\seczzz #1{% - \subsecno=0 \subsubsecno=0 \global\advance \secno by 1 % - \gdef\thissection{#1}\secheading {#1}{\the\chapno}{\the\secno}% - \writetocentry{sec}{#1}{{\the\chapno}{\the\secno}} - \donoderef - \nobreak +\outer\parseargdef\numberedsec{\numhead1{#1}} % normally calls seczzz +\def\seczzz#1{% + \global\subsecno=0 \global\subsubsecno=0 \global\advance\secno by 1 + \sectionheading{#1}{sec}{Ynumbered}{\the\chapno.\the\secno}% } -\outer\def\appendixsection{\parsearg\appendixsecyyy} -\outer\def\appendixsec{\parsearg\appendixsecyyy} -\def\appendixsecyyy #1{\apphead1{#1}} % normally calls appendixsectionzzz -\def\appendixsectionzzz #1{% - \subsecno=0 \subsubsecno=0 \global\advance \secno by 1 % - \gdef\thissection{#1}\secheading {#1}{\appendixletter}{\the\secno}% - \writetocentry{sec}{#1}{{\appendixletter}{\the\secno}} - \appendixnoderef - \nobreak +\outer\parseargdef\appendixsection{\apphead1{#1}} % normally calls appendixsectionzzz +\def\appendixsectionzzz#1{% + \global\subsecno=0 \global\subsubsecno=0 \global\advance\secno by 1 + \sectionheading{#1}{sec}{Yappendix}{\appendixletter.\the\secno}% } +\let\appendixsec\appendixsection -\outer\def\unnumberedsec{\parsearg\unnumberedsecyyy} -\def\unnumberedsecyyy #1{\unnmhead1{#1}} % normally calls unnumberedseczzz -\def\unnumberedseczzz #1{% - \plainsecheading {#1}\gdef\thissection{#1}% - \writetocentry{unnumbsec}{#1}{{\the\chapno}{\the\secno}} - \unnumbnoderef - \nobreak +\outer\parseargdef\unnumberedsec{\unnmhead1{#1}} % normally calls unnumberedseczzz +\def\unnumberedseczzz#1{% + \global\subsecno=0 \global\subsubsecno=0 \global\advance\secno by 1 + \sectionheading{#1}{sec}{Ynothing}{\the\unnumberedno.\the\secno}% } % Subsections. -\outer\def\numberedsubsec{\parsearg\numberedsubsecyyy} -\def\numberedsubsecyyy #1{\numhead2{#1}} % normally calls numberedsubseczzz -\def\numberedsubseczzz #1{% - \gdef\thissection{#1}\subsubsecno=0 \global\advance \subsecno by 1 % - \subsecheading {#1}{\the\chapno}{\the\secno}{\the\subsecno}% - \writetocentry{subsec}{#1}{{\the\chapno}{\the\secno}{\the\subsecno}} - \donoderef - \nobreak +\outer\parseargdef\numberedsubsec{\numhead2{#1}} % normally calls numberedsubseczzz +\def\numberedsubseczzz#1{% + \global\subsubsecno=0 \global\advance\subsecno by 1 + \sectionheading{#1}{subsec}{Ynumbered}{\the\chapno.\the\secno.\the\subsecno}% } -\outer\def\appendixsubsec{\parsearg\appendixsubsecyyy} -\def\appendixsubsecyyy #1{\apphead2{#1}} % normally calls appendixsubseczzz -\def\appendixsubseczzz #1{% - \gdef\thissection{#1}\subsubsecno=0 \global\advance \subsecno by 1 % - \subsecheading {#1}{\appendixletter}{\the\secno}{\the\subsecno}% - \writetocentry{subsec}{#1}{{\appendixletter}{\the\secno}{\the\subsecno}} - \appendixnoderef - \nobreak +\outer\parseargdef\appendixsubsec{\apphead2{#1}} % normally calls appendixsubseczzz +\def\appendixsubseczzz#1{% + \global\subsubsecno=0 \global\advance\subsecno by 1 + \sectionheading{#1}{subsec}{Yappendix}% + {\appendixletter.\the\secno.\the\subsecno}% } -\outer\def\unnumberedsubsec{\parsearg\unnumberedsubsecyyy} -\def\unnumberedsubsecyyy #1{\unnmhead2{#1}} %normally calls unnumberedsubseczzz -\def\unnumberedsubseczzz #1{% - \plainsubsecheading {#1}\gdef\thissection{#1}% - \writetocentry{unnumbsubsec}{#1}{{\the\chapno}{\the\secno}{\the\subsecno}} - \unnumbnoderef - \nobreak +\outer\parseargdef\unnumberedsubsec{\unnmhead2{#1}} %normally calls unnumberedsubseczzz +\def\unnumberedsubseczzz#1{% + \global\subsubsecno=0 \global\advance\subsecno by 1 + \sectionheading{#1}{subsec}{Ynothing}% + {\the\unnumberedno.\the\secno.\the\subsecno}% } % Subsubsections. -\outer\def\numberedsubsubsec{\parsearg\numberedsubsubsecyyy} -\def\numberedsubsubsecyyy #1{\numhead3{#1}} % normally numberedsubsubseczzz -\def\numberedsubsubseczzz #1{% - \gdef\thissection{#1}\global\advance \subsubsecno by 1 % - \subsubsecheading {#1} - {\the\chapno}{\the\secno}{\the\subsecno}{\the\subsubsecno}% - \writetocentry{subsubsec}{#1}{{\the\chapno}{\the\secno}{\the\subsecno}{\the\subsubsecno}} - \donoderef - \nobreak +\outer\parseargdef\numberedsubsubsec{\numhead3{#1}} % normally numberedsubsubseczzz +\def\numberedsubsubseczzz#1{% + \global\advance\subsubsecno by 1 + \sectionheading{#1}{subsubsec}{Ynumbered}% + {\the\chapno.\the\secno.\the\subsecno.\the\subsubsecno}% } -\outer\def\appendixsubsubsec{\parsearg\appendixsubsubsecyyy} -\def\appendixsubsubsecyyy #1{\apphead3{#1}} % normally appendixsubsubseczzz -\def\appendixsubsubseczzz #1{% - \gdef\thissection{#1}\global\advance \subsubsecno by 1 % - \subsubsecheading {#1} - {\appendixletter}{\the\secno}{\the\subsecno}{\the\subsubsecno}% - \writetocentry{subsubsec}{#1}{{\appendixletter}{\the\secno}{\the\subsecno}{\the\subsubsecno}} - \appendixnoderef - \nobreak +\outer\parseargdef\appendixsubsubsec{\apphead3{#1}} % normally appendixsubsubseczzz +\def\appendixsubsubseczzz#1{% + \global\advance\subsubsecno by 1 + \sectionheading{#1}{subsubsec}{Yappendix}% + {\appendixletter.\the\secno.\the\subsecno.\the\subsubsecno}% } -\outer\def\unnumberedsubsubsec{\parsearg\unnumberedsubsubsecyyy} -\def\unnumberedsubsubsecyyy #1{\unnmhead3{#1}} %normally unnumberedsubsubseczzz -\def\unnumberedsubsubseczzz #1{% - \plainsubsubsecheading {#1}\gdef\thissection{#1}% - \writetocentry{unnumbsubsubsec}{#1}{{\the\chapno}{\the\secno}{\the\subsecno}{\the\subsubsecno}} - \unnumbnoderef - \nobreak +\outer\parseargdef\unnumberedsubsubsec{\unnmhead3{#1}} %normally unnumberedsubsubseczzz +\def\unnumberedsubsubseczzz#1{% + \global\advance\subsubsecno by 1 + \sectionheading{#1}{subsubsec}{Ynothing}% + {\the\unnumberedno.\the\secno.\the\subsecno.\the\subsubsecno}% } % These are variants which are not "outer", so they can appear in @ifinfo. -% Actually, they should now be obsolete; ordinary section commands should work. +% Actually, they are now be obsolete; ordinary section commands should work. \def\infotop{\parsearg\unnumberedzzz} \def\infounnumbered{\parsearg\unnumberedzzz} \def\infounnumberedsec{\parsearg\unnumberedseczzz} @@ -3937,9 +4035,9 @@ width0pt\relax} \fi % These macros control what the section commands do, according % to what kind of chapter we are in (ordinary, appendix, or unnumbered). % Define them by default for a numbered chapter. -\global\let\section = \numberedsec -\global\let\subsection = \numberedsubsec -\global\let\subsubsection = \numberedsubsubsec +\let\section = \numberedsec +\let\subsection = \numberedsubsec +\let\subsubsection = \numberedsubsubsec % Define @majorheading, @heading and @subheading @@ -3952,23 +4050,27 @@ width0pt\relax} \fi % if justification is not attempted. Hence \raggedright. -\def\majorheading{\parsearg\majorheadingzzz} -\def\majorheadingzzz #1{% +\def\majorheading{% {\advance\chapheadingskip by 10pt \chapbreak }% - {\chapfonts \vbox{\hyphenpenalty=10000\tolerance=5000 - \parindent=0pt\raggedright - \rm #1\hfill}}\bigskip \par\penalty 200} + \parsearg\chapheadingzzz +} -\def\chapheading{\parsearg\chapheadingzzz} -\def\chapheadingzzz #1{\chapbreak % +\def\chapheading{\chapbreak \parsearg\chapheadingzzz} +\def\chapheadingzzz#1{% {\chapfonts \vbox{\hyphenpenalty=10000\tolerance=5000 \parindent=0pt\raggedright - \rm #1\hfill}}\bigskip \par\penalty 200} + \rm #1\hfill}}% + \bigskip \par\penalty 200\relax + \suppressfirstparagraphindent +} % @heading, @subheading, @subsubheading. -\def\heading{\parsearg\plainsecheading} -\def\subheading{\parsearg\plainsubsecheading} -\def\subsubheading{\parsearg\plainsubsubsecheading} +\parseargdef\heading{\sectionheading{#1}{sec}{Yomitfromtoc}{} + \suppressfirstparagraphindent} +\parseargdef\subheading{\sectionheading{#1}{subsec}{Yomitfromtoc}{} + \suppressfirstparagraphindent} +\parseargdef\subsubheading{\sectionheading{#1}{subsubsec}{Yomitfromtoc}{} + \suppressfirstparagraphindent} % These macros generate a chapter, section, etc. heading only % (including whitespace, linebreaking, etc. around it), @@ -4001,7 +4103,7 @@ width0pt\relax} \fi \global\let\pagealignmacro=\chappager \global\def\HEADINGSon{\HEADINGSsingle}} -\def\CHAPPAGodd{ +\def\CHAPPAGodd{% \global\let\contentsalignmacro = \chapoddpage \global\let\pchapsepmacro=\chapoddpage \global\let\pagealignmacro=\chapoddpage @@ -4009,30 +4111,79 @@ width0pt\relax} \fi \CHAPPAGon -\def\CHAPFplain{ +\def\CHAPFplain{% \global\let\chapmacro=\chfplain -\global\let\unnumbchapmacro=\unnchfplain \global\let\centerchapmacro=\centerchfplain} -% Plain chapter opening. -% #1 is the text, #2 the chapter number or empty if unnumbered. -\def\chfplain#1#2{% +% Normal chapter opening. +% +% #1 is the text, #2 is the section type (Ynumbered, Ynothing, +% Yappendix, Yomitfromtoc), #3 the chapter number. +% +% To test against our argument. +\def\Ynothingkeyword{Ynothing} +\def\Yomitfromtockeyword{Yomitfromtoc} +\def\Yappendixkeyword{Yappendix} +% +\def\chfplain#1#2#3{% \pchapsepmacro {% \chapfonts \rm - \def\chapnum{#2}% - \setbox0 = \hbox{#2\ifx\chapnum\empty\else\enspace\fi}% + % + % Have to define \thissection before calling \donoderef, because the + % xref code eventually uses it. On the other hand, it has to be called + % after \pchapsepmacro, or the headline will change too soon. + \gdef\thissection{#1}% + \gdef\thischaptername{#1}% + % + % Only insert the separating space if we have a chapter/appendix + % number, and don't print the unnumbered ``number''. + \def\temptype{#2}% + \ifx\temptype\Ynothingkeyword + \setbox0 = \hbox{}% + \def\toctype{unnchap}% + \def\thischapter{#1}% + \else\ifx\temptype\Yomitfromtockeyword + \setbox0 = \hbox{}% contents like unnumbered, but no toc entry + \def\toctype{omit}% + \xdef\thischapter{}% + \else\ifx\temptype\Yappendixkeyword + \setbox0 = \hbox{\putwordAppendix{} #3\enspace}% + \def\toctype{app}% + % We don't substitute the actual chapter name into \thischapter + % because we don't want its macros evaluated now. And we don't + % use \thissection because that changes with each section. + % + \xdef\thischapter{\putwordAppendix{} \appendixletter: + \noexpand\thischaptername}% + \else + \setbox0 = \hbox{#3\enspace}% + \def\toctype{numchap}% + \xdef\thischapter{\putwordChapter{} \the\chapno: + \noexpand\thischaptername}% + \fi\fi\fi + % + % Write the toc entry for this chapter. Must come before the + % \donoderef, because we include the current node name in the toc + % entry, and \donoderef resets it to empty. + \writetocentry{\toctype}{#1}{#3}% + % + % For pdftex, we have to write out the node definition (aka, make + % the pdfdest) after any page break, but before the actual text has + % been typeset. If the destination for the pdf outline is after the + % text, then jumping from the outline may wind up with the text not + % being visible, for instance under high magnification. + \donoderef{#2}% + % + % Typeset the actual heading. \vbox{\hyphenpenalty=10000 \tolerance=5000 \parindent=0pt \raggedright - \hangindent = \wd0 \centerparametersmaybe + \hangindent=\wd0 \centerparametersmaybe \unhbox0 #1\par}% }% \nobreak\bigskip % no page break after a chapter title \nobreak } -% Plain opening for unnumbered. -\def\unnchfplain#1{\chfplain{#1}{}} - % @centerchap -- centered and unnumbered. \let\centerparametersmaybe = \relax \def\centerchfplain#1{{% @@ -4041,11 +4192,14 @@ width0pt\relax} \fi \leftskip = \rightskip \parfillskip = 0pt }% - \chfplain{#1}{}% + \chfplain{#1}{Ynothing}{}% }} \CHAPFplain % The default +% I don't think this chapter style is supported any more, so I'm not +% updating it with the new noderef stuff. We'll see. --karl, 11aug03. +% \def\unnchfopen #1{% \chapoddpage {\chapfonts \vbox{\hyphenpenalty=10000\tolerance=5000 \parindent=0pt\raggedright @@ -4063,61 +4217,95 @@ width0pt\relax} \fi \hfill {\rm #1}\hfill}}\bigskip \par\nobreak } -\def\CHAPFopen{ +\def\CHAPFopen{% \global\let\chapmacro=\chfopen -\global\let\unnumbchapmacro=\unnchfopen \global\let\centerchapmacro=\centerchfopen} -% Section titles. +% Section titles. These macros combine the section number parts and +% call the generic \sectionheading to do the printing. +% \newskip\secheadingskip -\def\secheadingbreak{\dobreak \secheadingskip {-1000}} -\def\secheading#1#2#3{\sectionheading{sec}{#2.#3}{#1}} -\def\plainsecheading#1{\sectionheading{sec}{}{#1}} +\def\secheadingbreak{\dobreak \secheadingskip{-1000}} % Subsection titles. -\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}} +\newskip\subsecheadingskip +\def\subsecheadingbreak{\dobreak \subsecheadingskip{-500}} % Subsubsection titles. -\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\subsubsecheadingskip{\subsecheadingskip} +\def\subsubsecheadingbreak{\subsecheadingbreak} -% 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 - }% +% Print any size, any type, section title. +% +% #1 is the text, #2 is the section level (sec/subsec/subsubsec), #3 is +% the section type for xrefs (Ynumbered, Ynothing, Yappendix), #4 is the +% section number. +% +\def\sectionheading#1#2#3#4{% {% % Switch to the right set of fonts. - \csname #1fonts\endcsname \rm + \csname #2fonts\endcsname \rm + % + % Insert space above the heading. + \csname #2headingbreak\endcsname % - % Only insert the separating space if we have a section number. - \def\secnum{#2}% - \setbox0 = \hbox{#2\ifx\secnum\empty\else\enspace\fi}% + % Only insert the space after the number if we have a section number. + \def\sectionlevel{#2}% + \def\temptype{#3}% % + \ifx\temptype\Ynothingkeyword + \setbox0 = \hbox{}% + \def\toctype{unn}% + \gdef\thissection{#1}% + \else\ifx\temptype\Yomitfromtockeyword + % for @headings -- no section number, don't include in toc, + % and don't redefine \thissection. + \setbox0 = \hbox{}% + \def\toctype{omit}% + \let\sectionlevel=\empty + \else\ifx\temptype\Yappendixkeyword + \setbox0 = \hbox{#4\enspace}% + \def\toctype{app}% + \gdef\thissection{#1}% + \else + \setbox0 = \hbox{#4\enspace}% + \def\toctype{num}% + \gdef\thissection{#1}% + \fi\fi\fi + % + % Write the toc entry (before \donoderef). See comments in \chfplain. + \writetocentry{\toctype\sectionlevel}{#1}{#4}% + % + % Write the node reference (= pdf destination for pdftex). + % Again, see comments in \chfplain. + \donoderef{#3}% + % + % Output the actual section heading. \vbox{\hyphenpenalty=10000 \tolerance=5000 \parindent=0pt \raggedright - \hangindent = \wd0 % zero if no section number - \unhbox0 #3}% + \hangindent=\wd0 % zero if no section number + \unhbox0 #1}% }% - % Add extra space after the heading -- either a line space or a - % paragraph space, whichever is more. (Some people like to set - % \parskip to large values for some reason.) Don't allow stretch, though. + % Add extra space after the heading -- half of whatever came above it. + % Don't allow stretch, though. + \kern .5 \csname #2headingskip\endcsname + % + % Do not let the kern be a potential breakpoint, as it would be if it + % was followed by glue. \nobreak - \ifdim\parskip>\normalbaselineskip - \kern\parskip - \else - \kern\normalbaselineskip - \fi + % + % We'll almost certainly start a paragraph next, so don't let that + % glue accumulate. (Not a breakpoint because it's preceded by a + % discardable item.) + \vskip-\parskip + % + % This \nobreak is purely so the last item on the list is a \penalty + % of 10000. This is so other code, for instance \parsebodycommon, can + % check for and avoid allowing breakpoints. Otherwise, it would + % insert a valid breakpoint between: + % @section sec-whatever + % @deffn def-whatever \nobreak } @@ -4127,119 +4315,152 @@ width0pt\relax} \fi \newwrite\tocfile % Write an entry to the toc file, opening it if necessary. -% Called from @chapter, etc. We supply {\folio} at the end of the -% argument, which will end up as the last argument to the \...entry macro. -% -% Usage: \writetocentry{chap}{The Name of The Game}{{\the\chapno}} +% Called from @chapter, etc. +% +% Example usage: \writetocentry{sec}{Section Name}{\the\chapno.\the\secno} +% We append the current node name (if any) and page number as additional +% arguments for the \{chap,sec,...}entry macros which will eventually +% read this. The node name is used in the pdf outlines as the +% destination to jump to. +% % We open the .toc file for writing here instead of at @setfilename (or % any other fixed time) so that @contents can be anywhere in the document. +% But if #1 is `omit', then we don't do anything. This is used for the +% table of contents chapter openings themselves. % \newif\iftocfileopened +\def\omitkeyword{omit}% +% \def\writetocentry#1#2#3{% - \iftocfileopened\else - \immediate\openout\tocfile = \jobname.toc - \global\tocfileopenedtrue - \fi - % - \iflinks - \toks0 = {#2}% - \edef\temp{\write\tocfile{\realbackslash #1entry{\the\toks0}#3{\folio}}}% - \temp + \edef\writetoctype{#1}% + \ifx\writetoctype\omitkeyword \else + \iftocfileopened\else + \immediate\openout\tocfile = \jobname.toc + \global\tocfileopenedtrue + \fi + % + \iflinks + \toks0 = {#2}% + \toks2 = \expandafter{\lastnode}% + \edef\temp{\write\tocfile{\realbackslash #1entry{\the\toks0}{#3}% + {\the\toks2}{\noexpand\folio}}}% + \temp + \fi \fi % - % Tell \shipout to create a page destination if we're doing pdf, which - % will be the target of the links in the table of contents. We can't - % just do it on every page because the title pages are numbered 1 and - % 2 (the page numbers aren't printed), and so are the first two pages - % of the document. Thus, we'd have two destinations named `1', and - % two named `2'. - \ifpdf \pdfmakepagedesttrue \fi + % Tell \shipout to create a pdf destination on each page, if we're + % writing pdf. These are used in the table of contents. We can't + % just write one on every page because the title pages are numbered + % 1 and 2 (the page numbers aren't printed), and so are the first + % two pages of the document. Thus, we'd have two destinations named + % `1', and two named `2'. + \ifpdf \global\pdfmakepagedesttrue \fi } \newskip\contentsrightmargin \contentsrightmargin=1in \newcount\savepageno \newcount\lastnegativepageno \lastnegativepageno = -1 -% Finish up the main text and prepare to read what we've written -% to \tocfile. +% Prepare to read what we've written to \tocfile. % \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\tocfile - % - % Don't need to put `Contents' or `Short Contents' in the headline. - % It is abundantly clear what they are. - \unnumbchapmacro{#1}\def\thischapter{}% - \savepageno = \pageno - \begingroup % Set up to handle contents files properly. - \catcode`\\=0 \catcode`\{=1 \catcode`\}=2 \catcode`\@=11 - % We can't do this, because then an actual ^ in a section - % title fails, e.g., @chapter ^ -- exponentiation. --karl, 9jul97. - %\catcode`\^=7 % to see ^^e4 as \"a etc. juha@piuha.ydi.vtt.fi - \raggedbottom % Worry more about breakpoints than the bottom. - \advance\hsize by -\contentsrightmargin % Don't use the full line length. - % - % Roman numerals for page numbers. - \ifnum \pageno>0 \global\pageno = \lastnegativepageno \fi + % 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\tocfile + % + % Don't need to put `Contents' or `Short Contents' in the headline. + % It is abundantly clear what they are. + \def\thischapter{}% + \chapmacro{#1}{Yomitfromtoc}{}% + % + \savepageno = \pageno + \begingroup % Set up to handle contents files properly. + \catcode`\\=0 \catcode`\{=1 \catcode`\}=2 \catcode`\@=11 + % We can't do this, because then an actual ^ in a section + % title fails, e.g., @chapter ^ -- exponentiation. --karl, 9jul97. + %\catcode`\^=7 % to see ^^e4 as \"a etc. juha@piuha.ydi.vtt.fi + \raggedbottom % Worry more about breakpoints than the bottom. + \advance\hsize by -\contentsrightmargin % Don't use the full line length. + % + % Roman numerals for page numbers. + \ifnum \pageno>0 \global\pageno = \lastnegativepageno \fi } % Normal (long) toc. \def\contents{% - \startcontents{\putwordTOC}% - \openin 1 \jobname.toc - \ifeof 1 \else - \closein 1 - \input \jobname.toc - \fi - \vfill \eject - \contentsalignmacro % in case @setchapternewpage odd is in effect - \pdfmakeoutlines - \endgroup - \lastnegativepageno = \pageno - \global\pageno = \savepageno + \startcontents{\putwordTOC}% + \openin 1 \jobname.toc + \ifeof 1 \else + \input \jobname.toc + \fi + \vfill \eject + \contentsalignmacro % in case @setchapternewpage odd is in effect + \ifeof 1 \else + \pdfmakeoutlines + \fi + \closein 1 + \endgroup + \lastnegativepageno = \pageno + \global\pageno = \savepageno } % And just the chapters. \def\summarycontents{% - \startcontents{\putwordShortTOC}% - % - \let\chapentry = \shortchapentry - \let\appendixentry = \shortappendixentry - \let\unnumbchapentry = \shortunnumberedentry - % We want a true roman here for the page numbers. - \secfonts - \let\rm=\shortcontrm \let\bf=\shortcontbf - \let\sl=\shortcontsl \let\tt=\shortconttt - \rm - \hyphenpenalty = 10000 - \advance\baselineskip by 1pt % Open it up a little. - \def\secentry ##1##2##3##4{} - \def\subsecentry ##1##2##3##4##5{} - \def\subsubsecentry ##1##2##3##4##5##6{} - \let\unnumbsecentry = \secentry - \let\unnumbsubsecentry = \subsecentry - \let\unnumbsubsubsecentry = \subsubsecentry - \openin 1 \jobname.toc - \ifeof 1 \else - \closein 1 - \input \jobname.toc - \fi - \vfill \eject - \contentsalignmacro % in case @setchapternewpage odd is in effect - \endgroup - \lastnegativepageno = \pageno - \global\pageno = \savepageno + \startcontents{\putwordShortTOC}% + % + \let\numchapentry = \shortchapentry + \let\appentry = \shortchapentry + \let\unnchapentry = \shortunnchapentry + % We want a true roman here for the page numbers. + \secfonts + \let\rm=\shortcontrm \let\bf=\shortcontbf + \let\sl=\shortcontsl \let\tt=\shortconttt + \rm + \hyphenpenalty = 10000 + \advance\baselineskip by 1pt % Open it up a little. + \def\numsecentry##1##2##3##4{} + \let\appsecentry = \numsecentry + \let\unnsecentry = \numsecentry + \let\numsubsecentry = \numsecentry + \let\appsubsecentry = \numsecentry + \let\unnsubsecentry = \numsecentry + \let\numsubsubsecentry = \numsecentry + \let\appsubsubsecentry = \numsecentry + \let\unnsubsubsecentry = \numsecentry + \openin 1 \jobname.toc + \ifeof 1 \else + \input \jobname.toc + \fi + \closein 1 + \vfill \eject + \contentsalignmacro % in case @setchapternewpage odd is in effect + \endgroup + \lastnegativepageno = \pageno + \global\pageno = \savepageno } \let\shortcontents = \summarycontents -\ifpdf - \pdfcatalog{/PageMode /UseOutlines}% -\fi +% Typeset the label for a chapter or appendix for the short contents. +% The arg is, e.g., `A' for an appendix, or `3' for a chapter. +% +\def\shortchaplabel#1{% + % This space should be enough, since a single number is .5em, and the + % widest letter (M) is 1em, at least in the Computer Modern fonts. + % But use \hss just in case. + % (This space doesn't include the extra space that gets added after + % the label; that gets put in by \shortchapentry above.) + % + % We'd like to right-justify chapter numbers, but that looks strange + % with appendix letters. And right-justifying numbers and + % left-justifying letters looks strange when there is less than 10 + % chapters. Have to read the whole toc once to know how many chapters + % there are before deciding ... + \hbox to 1em{#1\hss}% +} % These macros generate individual entries in the table of contents. % The first argument is the chapter or section name. @@ -4247,58 +4468,46 @@ width0pt\relax} \fi % The arguments in between are the chapter number, section number, ... % Chapters, in the main contents. -\def\chapentry#1#2#3{\dochapentry{#2\labelspace#1}{#3}} +\def\numchapentry#1#2#3#4{\dochapentry{#2\labelspace#1}{#4}} % % Chapters, in the short toc. % See comments in \dochapentry re vbox and related settings. -\def\shortchapentry#1#2#3{% - \tocentry{\shortchaplabel{#2}\labelspace #1}{\doshortpageno\bgroup#3\egroup}% +\def\shortchapentry#1#2#3#4{% + \tocentry{\shortchaplabel{#2}\labelspace #1}{\doshortpageno\bgroup#4\egroup}% } % Appendices, in the main contents. -\def\appendixentry#1#2#3{% - \dochapentry{\appendixbox{\putwordAppendix{} #2}\labelspace#1}{#3}} -% -% Appendices, in the short toc. -\let\shortappendixentry = \shortchapentry - -% Typeset the label for a chapter or appendix for the short contents. -% The arg is, e.g., `Appendix A' for an appendix, or `3' for a chapter. -% We could simplify the code here by writing out an \appendixentry -% command in the toc file for appendices, instead of using \chapentry -% for both, but it doesn't seem worth it. -% -\newdimen\shortappendixwidth +% Need the word Appendix, and a fixed-size box. +% +\def\appendixbox#1{% + % We use M since it's probably the widest letter. + \setbox0 = \hbox{\putwordAppendix{} M}% + \hbox to \wd0{\putwordAppendix{} #1\hss}} % -\def\shortchaplabel#1{% - % This space should be enough, since a single number is .5em, and the - % widest letter (M) is 1em, at least in the Computer Modern fonts. - % But use \hss just in case. - % (This space doesn't include the extra space that gets added after - % the label; that gets put in by \shortchapentry above.) - \dimen0 = 1em - \hbox to \dimen0{#1\hss}% -} +\def\appentry#1#2#3#4{\dochapentry{\appendixbox{#2}\labelspace#1}{#4}} % Unnumbered chapters. -\def\unnumbchapentry#1#2#3{\dochapentry{#1}{#3}} -\def\shortunnumberedentry#1#2#3{\tocentry{#1}{\doshortpageno\bgroup#3\egroup}} +\def\unnchapentry#1#2#3#4{\dochapentry{#1}{#4}} +\def\shortunnchapentry#1#2#3#4{\tocentry{#1}{\doshortpageno\bgroup#4\egroup}} % Sections. -\def\secentry#1#2#3#4{\dosecentry{#2.#3\labelspace#1}{#4}} -\def\unnumbsecentry#1#2#3#4{\dosecentry{#1}{#4}} +\def\numsecentry#1#2#3#4{\dosecentry{#2\labelspace#1}{#4}} +\let\appsecentry=\numsecentry +\def\unnsecentry#1#2#3#4{\dosecentry{#1}{#4}} % Subsections. -\def\subsecentry#1#2#3#4#5{\dosubsecentry{#2.#3.#4\labelspace#1}{#5}} -\def\unnumbsubsecentry#1#2#3#4#5{\dosubsecentry{#1}{#5}} +\def\numsubsecentry#1#2#3#4{\dosubsecentry{#2\labelspace#1}{#4}} +\let\appsubsecentry=\numsubsecentry +\def\unnsubsecentry#1#2#3#4{\dosubsecentry{#1}{#4}} % And subsubsections. -\def\subsubsecentry#1#2#3#4#5#6{% - \dosubsubsecentry{#2.#3.#4.#5\labelspace#1}{#6}} -\def\unnumbsubsubsecentry#1#2#3#4#5#6{\dosubsubsecentry{#1}{#6}} +\def\numsubsubsecentry#1#2#3#4{\dosubsubsecentry{#2\labelspace#1}{#4}} +\let\appsubsubsecentry=\numsubsubsecentry +\def\unnsubsubsecentry#1#2#3#4{\dosubsubsecentry{#1}{#4}} % This parameter controls the indentation of the various levels. -\newdimen\tocindent \tocindent = 3pc +% Same as \defaultparindent. +\newdimen\tocindent \tocindent = 15pt % Now for the actual typesetting. In all these, #1 is the text and #2 is the % page number. @@ -4329,17 +4538,8 @@ width0pt\relax} \fi \tocentry{#1}{\dopageno\bgroup#2\egroup}% \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.) -\def\tocentry#1#2{\begingroup - \vskip 0pt plus1pt % allow a little stretch for the sake of nice page breaks - % Do not use \turnoffactive in these arguments. Since the toc is - % typeset in cmr, characters such as _ would come out wrong; we - % have to do the usual translation tricks. - \entry{#1}{#2}% -\endgroup} +% We use the same \entry macro as for the index entries. +\let\tocentry = \entry % Space between chapter (or whatever) number and the title. \def\labelspace{\hskip1em \relax} @@ -4349,15 +4549,15 @@ width0pt\relax} \fi \def\chapentryfonts{\secfonts \rm} \def\secentryfonts{\textfonts} -\let\subsecentryfonts = \textfonts -\let\subsubsecentryfonts = \textfonts +\def\subsecentryfonts{\textfonts} +\def\subsubsecentryfonts{\textfonts} \message{environments,} % @foo ... @end foo. % @point{}, @result{}, @expansion{}, @print{}, @equiv{}. -% +% % 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. % @@ -4369,7 +4569,7 @@ width0pt\relax} \fi % The @error{} command. % Adapted from the TeXbook's \boxit. -% +% \newbox\errorbox % {\tentt \global\dimen0 = 3em}% Width of the box. @@ -4377,10 +4577,10 @@ width0pt\relax} \fi % 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 +\setbox\errorbox=\hbox to \dimen0{\hfil \hsize = \dimen0 \advance\hsize by -5.8pt % Space to left+right. \advance\hsize by -2\dimen2 % Rules. - \vbox{ + \vbox{% \hrule height\dimen2 \hbox{\vrule width\dimen2 \kern3pt % Space to left of text. \vtop{\kern2.4pt \box0 \kern2.4pt}% Space above/below. @@ -4394,14 +4594,13 @@ width0pt\relax} \fi % One exception: @ is still an escape character, so that @end tex works. % But \@ or @@ will get a plain tex @ character. -\def\tex{\begingroup +\envdef\tex{% \catcode `\\=0 \catcode `\{=1 \catcode `\}=2 \catcode `\$=3 \catcode `\&=4 \catcode `\#=6 \catcode `\^=7 \catcode `\_=8 \catcode `\~=\active \let~=\tie \catcode `\%=14 \catcode `\+=\other \catcode `\"=\other - \catcode `\==\other \catcode `\|=\other \catcode `\<=\other \catcode `\>=\other @@ -4416,19 +4615,23 @@ width0pt\relax} \fi \let\equiv=\ptexequiv \let\!=\ptexexclam \let\i=\ptexi + \let\indent=\ptexindent + \let\noindent=\ptexnoindent \let\{=\ptexlbrace \let\+=\tabalign \let\}=\ptexrbrace + \let\/=\ptexslash \let\*=\ptexstar \let\t=\ptext % \def\endldots{\mathinner{\ldots\ldots\ldots\ldots}}% \def\enddots{\relax\ifmmode\endldots\else$\mathsurround=0pt \endldots\,$\fi}% \def\@{@}% -\let\Etex=\endgroup} +} +% There is no need to define \Etex. % Define @lisp ... @end lisp. -% @lisp does a \begingroup so it can rebind things, +% @lisp environment forms a group so it can rebind things, % including the definition of @end lisp (which normally is erroneous). % Amount to narrow the margins by for @lisp. @@ -4439,19 +4642,6 @@ width0pt\relax} \fi % have any width. \def\lisppar{\null\endgraf} -% Make each space character in the input produce a normal interword -% space in the output. Don't allow a line break at this space, as this -% is used only in environments like @example, where each line of input -% should produce a line of output anyway. -% -{\obeyspaces % -\gdef\sepspaces{\obeyspaces\let =\tie}} - -% Define \obeyedspace to be our active space, whatever it is. This is -% for use in \parsearg. -{\sepspaces% -\global\let\obeyedspace= } - % This space is always present above and below environments. \newskip\envskipamount \envskipamount = 0pt @@ -4469,7 +4659,7 @@ width0pt\relax} \fi \removelastskip % it's not a good place to break if the last penalty was \nobreak % or better ... - \ifnum\lastpenalty>10000 \else \penalty-50 \fi + \ifnum\lastpenalty<10000 \penalty-50 \fi \vskip\envskipamount \fi \fi @@ -4501,52 +4691,52 @@ width0pt\relax} \fi % \newskip\lskip\newskip\rskip -\def\cartouche{% -\par % can't be in the midst of a paragraph. -\begingroup - \lskip=\leftskip \rskip=\rightskip - \leftskip=0pt\rightskip=0pt %we want these *outside*. - \cartinner=\hsize \advance\cartinner by-\lskip - \advance\cartinner by-\rskip - \cartouter=\hsize - \advance\cartouter by 18.4pt % allow for 3pt kerns on either -% side, and for 6pt waste from -% each corner char, and rule thickness - \normbskip=\baselineskip \normpskip=\parskip \normlskip=\lineskip - % Flag to tell @lisp, etc., not to narrow margin. - \let\nonarrowing=\comment - \vbox\bgroup - \baselineskip=0pt\parskip=0pt\lineskip=0pt - \carttop - \hbox\bgroup - \hskip\lskip - \vrule\kern3pt - \vbox\bgroup - \hsize=\cartinner - \kern3pt - \begingroup - \baselineskip=\normbskip - \lineskip=\normlskip - \parskip=\normpskip - \vskip -\parskip +\envdef\cartouche{% + \ifhmode\par\fi % can't be in the midst of a paragraph. + \startsavinginserts + \lskip=\leftskip \rskip=\rightskip + \leftskip=0pt\rightskip=0pt % we want these *outside*. + \cartinner=\hsize \advance\cartinner by-\lskip + \advance\cartinner by-\rskip + \cartouter=\hsize + \advance\cartouter by 18.4pt % allow for 3pt kerns on either + % side, and for 6pt waste from + % each corner char, and rule thickness + \normbskip=\baselineskip \normpskip=\parskip \normlskip=\lineskip + % Flag to tell @lisp, etc., not to narrow margin. + \let\nonarrowing=\comment + \vbox\bgroup + \baselineskip=0pt\parskip=0pt\lineskip=0pt + \carttop + \hbox\bgroup + \hskip\lskip + \vrule\kern3pt + \vbox\bgroup + \kern3pt + \hsize=\cartinner + \baselineskip=\normbskip + \lineskip=\normlskip + \parskip=\normpskip + \vskip -\parskip + \comment % For explanation, see the end of \def\group. +} \def\Ecartouche{% - \endgroup - \kern3pt - \egroup - \kern3pt\vrule - \hskip\rskip - \egroup - \cartbot - \egroup -\endgroup -}} + \ifhmode\par\fi + \kern3pt + \egroup + \kern3pt\vrule + \hskip\rskip + \egroup + \cartbot + \egroup + \checkinserts +} % This macro is called at the beginning of all the @example variants, % inside a group. \def\nonfillstart{% \aboveenvbreak - \inENV % This group ends at the end of the body \hfuzz = 12pt % Don't be fussy \sepspaces % Make spaces be word-separators rather than space tokens. \let\par = \lisppar % don't ignore blank lines @@ -4559,103 +4749,99 @@ width0pt\relax} \fi \ifx\nonarrowing\relax \advance \leftskip by \lispnarrowing \exdentamount=\lispnarrowing - \let\exdent=\nofillexdent - \let\nonarrowing=\relax \fi + \let\exdent=\nofillexdent } -% Define the \E... control sequence only if we are inside the particular -% environment, so the error checking in \end will work. +% If you want all examples etc. small: @set dispenvsize small. +% If you want even small examples the full size: @set dispenvsize nosmall. +% This affects the following displayed environments: +% @example, @display, @format, @lisp % -% To end an @example-like environment, we first end the paragraph (via -% \afterenvbreak's vertical glue), and then the group. That way we keep -% the zero \parskip that the environments set -- \parskip glue will be -% inserted at the beginning of the next paragraph in the document, after -% the environment. -% -\def\nonfillfinish{\afterenvbreak\endgroup} +\def\smallword{small} +\def\nosmallword{nosmall} +\let\SETdispenvsize\relax +\def\setnormaldispenv{% + \ifx\SETdispenvsize\smallword + \smallexamplefonts \rm + \fi +} +\def\setsmalldispenv{% + \ifx\SETdispenvsize\nosmallword + \else + \smallexamplefonts \rm + \fi +} -% @lisp: indented, narrowed, typewriter font. -\def\lisp{\begingroup - \nonfillstart - \let\Elisp = \nonfillfinish - \tt - \let\kbdfont = \kbdexamplefont % Allow @kbd to do something special. - \gobble % eat return +% We often define two environments, @foo and @smallfoo. +% Let's do it by one command: +\def\makedispenv #1#2{ + \expandafter\envdef\csname#1\endcsname {\setnormaldispenv #2} + \expandafter\envdef\csname small#1\endcsname {\setsmalldispenv #2} + \expandafter\let\csname E#1\endcsname \afterenvbreak + \expandafter\let\csname Esmall#1\endcsname \afterenvbreak } -% @example: Same as @lisp. -\def\example{\begingroup \def\Eexample{\nonfillfinish\endgroup}\lisp} +% Define two synonyms: +\def\maketwodispenvs #1#2#3{ + \makedispenv{#1}{#3} + \makedispenv{#2}{#3} +} +% @lisp: indented, narrowed, typewriter font; @example: same as @lisp. +% % @smallexample and @smalllisp: use smaller fonts. % Originally contributed by Pavel@xerox. -\def\smalllisp{\begingroup - \def\Esmalllisp{\nonfillfinish\endgroup}% - \def\Esmallexample{\nonfillfinish\endgroup}% - \smallexamplefonts - \lisp +% +\maketwodispenvs {lisp}{example}{% + \nonfillstart + \tt + \let\kbdfont = \kbdexamplefont % Allow @kbd to do something special. + \gobble % eat return } -\let\smallexample = \smalllisp - -% @display: same as @lisp except keep current font. +% @display/@smalldisplay: same as @lisp except keep current font. % -\def\display{\begingroup +\makedispenv {display}{% \nonfillstart - \let\Edisplay = \nonfillfinish \gobble } -% -% @smalldisplay: @display plus smaller fonts. -% -\def\smalldisplay{\begingroup - \def\Esmalldisplay{\nonfillfinish\endgroup}% - \smallexamplefonts \rm - \display -} -% @format: same as @display except don't narrow margins. +% @format/@smallformat: same as @display except don't narrow margins. % -\def\format{\begingroup - \let\nonarrowing = t +\makedispenv{format}{% + \let\nonarrowing = t% \nonfillstart - \let\Eformat = \nonfillfinish \gobble } -% -% @smallformat: @format plus smaller fonts. -% -\def\smallformat{\begingroup - \def\Esmallformat{\nonfillfinish\endgroup}% - \smallexamplefonts \rm - \format -} -% @flushleft (same as @format). -% -\def\flushleft{\begingroup \def\Eflushleft{\nonfillfinish\endgroup}\format} +% @flushleft: same as @format, but doesn't obey \SETdispenvsize. +\envdef\flushleft{% + \let\nonarrowing = t% + \nonfillstart + \gobble +} +\let\Eflushleft = \afterenvbreak % @flushright. % -\def\flushright{\begingroup - \let\nonarrowing = t +\envdef\flushright{% + \let\nonarrowing = t% \nonfillstart - \let\Eflushright = \nonfillfinish \advance\leftskip by 0pt plus 1fill \gobble } +\let\Eflushright = \afterenvbreak % @quotation does normal linebreaking (hence we can't use \nonfillstart) -% and narrows the margins. +% and narrows the margins. We keep \parskip nonzero in general, since +% we're doing normal filling. So, when using \aboveenvbreak and +% \afterenvbreak, temporarily make \parskip 0. % -\def\quotation{% - \begingroup\inENV %This group ends at the end of the @quotation body +\envdef\quotation{% {\parskip=0pt \aboveenvbreak}% because \aboveenvbreak inserts \parskip \parindent=0pt - % We have retained a nonzero parskip for the environment, since we're - % doing normal filling. So to avoid extra space below the environment... - \def\Equotation{\parskip = 0pt \nonfillfinish}% % % @cartouche defines \nonarrowing to inhibit narrowing at next level down. \ifx\nonarrowing\relax @@ -4664,11 +4850,32 @@ width0pt\relax} \fi \exdentamount = \lispnarrowing \let\nonarrowing = \relax \fi + \parsearg\quotationlabel +} + +% We have retained a nonzero parskip for the environment, since we're +% doing normal filling. +% +\def\Equotation{% + \par + \ifx\quotationauthor\undefined\else + % indent a bit. + \leftline{\kern 2\leftskip \sl ---\quotationauthor}% + \fi + {\parskip=0pt \afterenvbreak}% +} + +% If we're given an argument, typeset it in bold with a colon after. +\def\quotationlabel#1{% + \def\temp{#1}% + \ifx\temp\empty \else + {\bf #1: }% + \fi } % LaTeX-like @verbatim...@end verbatim and @verb{<char>...<char>} -% If we want to allow any <char> as delimiter, +% If we want to allow any <char> as delimiter, % we need the curly braces so that makeinfo sees the @verb command, eg: % `@verbx...x' would look like the '@verbx' command. --janneke@gnu.org % @@ -4685,7 +4892,7 @@ width0pt\relax} \fi % % [Knuth] p. 380 \def\uncatcodespecials{% - \def\do##1{\catcode`##1=12}\dospecials} + \def\do##1{\catcode`##1=\other}\dospecials} % % [Knuth] pp. 380,381,391 % Disable Spanish ligatures ?` and !` of \tt font @@ -4733,6 +4940,8 @@ width0pt\relax} \fi } \endgroup \def\setupverbatim{% + \nonfillstart + \advance\leftskip by -\defbodyindent % Easiest (and conventionally used) font for verbatim \tt \def\par{\leavevmode\egroup\box0\endgraf}% @@ -4746,15 +4955,15 @@ width0pt\relax} \fi \everypar{\starttabbox}% } -% Do the @verb magic: verbatim text is quoted by unique -% delimiter characters. Before first delimiter expect a +% Do the @verb magic: verbatim text is quoted by unique +% delimiter characters. Before first delimiter expect a % right brace, after last delimiter expect closing brace: % % \def\doverb'{'<char>#1<char>'}'{#1} % % [Knuth] p. 382; only eat outer {} \begingroup - \catcode`[=1\catcode`]=2\catcode`\{=12\catcode`\}=12 + \catcode`[=1\catcode`]=2\catcode`\{=\other\catcode`\}=\other \gdef\doverb{#1[\def\next##1#1}[##1\endgroup]\next] \endgroup % @@ -4766,18 +4975,11 @@ width0pt\relax} \fi % % \def\doverbatim#1@end verbatim{#1} % -% For Texinfo it's a lot easier than for LaTeX, +% For Texinfo it's a lot easier than for LaTeX, % because texinfo's \verbatim doesn't stop at '\end{verbatim}': % we need not redefine '\', '{' and '}'. % % Inspired by LaTeX's verbatim command set [latex.ltx] -%% Include LaTeX hack for completeness -- never know -%% \begingroup -%% \catcode`|=0 \catcode`[=1 -%% \catcode`]=2\catcode`\{=12\catcode`\}=12\catcode`\ =\active -%% \catcode`\\=12|gdef|doverbatim#1@end verbatim[ -%% #1|endgroup|def|Everbatim[]|end[verbatim]] -%% |endgroup % \begingroup \catcode`\ =\active @@ -4785,62 +4987,41 @@ width0pt\relax} \fi % ignore everything up to the first ^^M, that's the newline at the end % of the @verbatim input line itself. Otherwise we get an extra blank % line in the output. - \gdef\doverbatim#1^^M#2@end verbatim{#2\end{verbatim}}% + \xdef\doverbatim#1^^M#2@end verbatim{#2\noexpand\end\gobble verbatim}% + % We really want {...\end verbatim} in the body of the macro, but + % without the active space; thus we have to use \xdef and \gobble. \endgroup % -\def\verbatim{% - \def\Everbatim{\nonfillfinish\endgroup}% - \begingroup - \nonfillstart - \advance\leftskip by -\defbodyindent - \begingroup\setupverbatim\doverbatim +\envdef\verbatim{% + \setupverbatim\doverbatim } +\let\Everbatim = \afterenvbreak + % @verbatiminclude FILE - insert text of file in verbatim environment. % -% Allow normal characters that we make active in the argument (a file name). -\def\verbatiminclude{% - \begingroup - \catcode`\\=\other - \catcode`~=\other - \catcode`^=\other - \catcode`_=\other - \catcode`|=\other - \catcode`<=\other - \catcode`>=\other - \catcode`+=\other - \parsearg\doverbatiminclude -} -\def\setupverbatiminclude{% - \begingroup - \nonfillstart - \advance\leftskip by -\defbodyindent - \begingroup\setupverbatim -} +\def\verbatiminclude{\parseargusing\filenamecatcodes\doverbatiminclude} % \def\doverbatiminclude#1{% - % Restore active chars for included file. - \endgroup - \begingroup - \let\value=\expandablevalue - \def\thisfile{#1}% - \expandafter\expandafter\setupverbatiminclude\input\thisfile - \endgroup - \nonfillfinish - \endgroup + {% + \makevalueexpandable + \setupverbatim + \input #1 + \afterenvbreak + }% } % @copying ... @end copying. % Save the text away for @insertcopying later. Many commands won't be % allowed in this context, but that's ok. -% +% % We save the uninterpreted tokens, rather than creating a box. % Saving the text in a box would be much easier, but then all the % typesetting commands (@smallbook, font changes, etc.) have to be done % beforehand -- and a) we want @copying to be done first in the source % file; b) letting users define the frontmatter in as flexible order as % possible is very desirable. -% +% \def\copying{\begingroup % Define a command to swallow text until we reach `@end copying'. % \ is the escape char in this texinfo.tex file, so it is the @@ -4863,15 +5044,15 @@ width0pt\relax} \fi % end-of-line to be a \par, as would happen with the normal active % definition of ^^M. On the third hand, two ^^M's in a row should still % generate a \par. -% +% % Our approach is to make ^^M insert a space and a penalty1 normally; % then it can also check if \lastpenalty=1. If it does, then manually % do \par. -% +% % This messes up the normal definitions of @c[omment], so we redefine % it. Similarly for @ignore. (These commands are used in the gcc % manual for man page generation.) -% +% % Seems pretty fragile, most line-oriented commands will presumably % fail, but for the limited use of getting the copying text (which % should be quite simple) inserted, we can hope it's ok. @@ -4902,581 +5083,336 @@ width0pt\relax} \fi \message{defuns,} % @defun etc. -% Allow user to change definition object font (\df) internally -\def\setdeffont#1 {\csname DEF#1\endcsname} - \newskip\defbodyindent \defbodyindent=.4in \newskip\defargsindent \defargsindent=50pt \newskip\deflastargmargin \deflastargmargin=18pt -\newcount\parencount - -% We want ()&[] to print specially on the defun line. -% -\def\activeparens{% - \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) - -% 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\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. -% 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`\(}\global\advance\parencount by 1 } -\def\clnr{{\sf\char`\)}\global\advance\parencount by -1 } -\let\ampnr = \& -\def\lbrb{{\bf\char`\[}} -\def\rbrb{{\bf\char`\]}} - -% Active &'s sneak into the index arguments, so make sure it's defined. -{ - \catcode`& = \active - \global\let& = \ampnr -} - -% \defname, which formats the name of the @def (not the args). -% #1 is the function name. -% #2 is the type of definition, such as "Function". -% -\def\defname#1#2{% - % How we'll output the type name. Putting it in brackets helps - % distinguish it from the body text that may end up on the next line - % just below it. - \ifempty{#2}% - \def\defnametype{}% +% Start the processing of @deffn: +\def\startdefun{% + \ifnum\lastpenalty<10000 + \medbreak \else - \def\defnametype{[\rm #2]}% + % If there are two @def commands in a row, we'll have a \nobreak, + % which is there to keep the function description together with its + % header. But if there's nothing but headers, we need to allow a + % break somewhere. Check for penalty 10002 (inserted by + % \defargscommonending) instead of 10000, since the sectioning + % commands insert a \penalty10000, and we don't want to allow a break + % between a section heading and a defun. + \ifnum\lastpenalty=10002 \penalty2000 \fi + % + % Similarly, after a section heading, do not allow a break. + % But do insert the glue. + \medskip % preceded by discardable penalty, so not a breakpoint \fi % - % Get the values of \leftskip and \rightskip as they were outside the @def... - \dimen2=\leftskip - \advance\dimen2 by -\defbodyindent - % - % Figure out values for the paragraph shape. - \setbox0=\hbox{\hskip \deflastargmargin{\defnametype}}% - \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 - % - % Output arg 2 ("Function" or some such) but stuck inside a box of - % width 0 so it does not interfere with linebreaking. - \noindent - % - {% Adjust \hsize to exclude the ambient margins, - % so that \rightline will obey them. - \advance \hsize by -\dimen2 - \dimen3 = 0pt % was -1.25pc - \rlap{\rightline{\defnametype\kern\dimen3}}% - }% - % - % Allow all lines to be underfull without complaint: - \tolerance=10000 \hbadness=10000 - \advance\leftskip by -\defbodyindent - \exdentamount=\defbodyindent - {\df #1}\enskip % output function name - % \defunargs will be called next to output the arguments, if any. -} - -% Common pieces to start any @def... -% #1 is the \E... control sequence to end the definition (which we define). -% #2 is the \...x control sequence (which our caller defines). -% #3 is the control sequence to process the header, such as \defunheader. -% -\def\parsebodycommon#1#2#3{% - \begingroup\inENV - % If there are two @def commands in a row, we'll have a \nobreak, - % which is there to keep the function description together with its - % header. But if there's nothing but headers, we want to allow a - % break after all. Check for penalty 10002 (inserted by - % \defargscommonending) instead of 10000, since the sectioning - % commands insert a \penalty10000, and we don't want to allow a break - % between a section heading and a defun. - \ifnum\lastpenalty=10002 \penalty0 \fi - \medbreak - % - % Define the \E... end token that this defining construct specifies - % so that it will exit this group. - \def#1{\endgraf\endgroup\medbreak}% - % \parindent=0in \advance\leftskip by \defbodyindent \exdentamount=\defbodyindent } -% Common part of the \...x definitions. -% -\def\defxbodycommon{% - % As with \parsebodycommon above, allow line break if we have multiple - % x headers in a row. It's not a great place, though. - \ifnum\lastpenalty=10000 \penalty1000 \fi +\def\dodefunx#1{% + % First, check whether we are in the right environment: + \checkenv#1% % - \begingroup\obeylines + % As above, allow line break if we have multiple x headers in a row. + % It's not a great place, though. + \ifnum\lastpenalty=10002 \penalty3000 \fi + % + % And now, it's time to reuse the body of the original defun: + \expandafter\gobbledefun#1% } +\def\gobbledefun#1\startdefun{} -% Process body of @defun, @deffn, @defmac, etc. +% \printdefunline \deffnheader{text} % -\def\defparsebody#1#2#3{% - \parsebodycommon{#1}{#2}{#3}% - \def#2{\defxbodycommon \activeparens \spacesplit#3}% - \catcode\equalChar=\active - \begingroup\obeylines\activeparens - \spacesplit#3% +\def\printdefunline#1#2{% + \begingroup + % call \deffnheader: + #1#2 \endheader + % common ending: + \interlinepenalty = 10000 + \advance\rightskip by 0pt plus 1fil + \endgraf + \nobreak\vskip -\parskip + \penalty 10002 % signal to \startdefun and \dodefunx + % Some of the @defun-type tags do not enable magic parentheses, + % rendering the following check redundant. But we don't optimize. + \checkparencounts + \endgroup } -% #1, #2, #3 are the common arguments (see \parsebodycommon above). -% #4, delimited by the space, is the class name. +\def\Edefun{\endgraf\medbreak} + +% \makedefun{deffn} creates \deffn, \deffnx and \Edeffn; +% the only thing remainnig is to define \deffnheader. % -\def\defmethparsebody#1#2#3#4 {% - \parsebodycommon{#1}{#2}{#3}% - \def#2##1 {\defxbodycommon \activeparens \spacesplit{#3{##1}}}% - \begingroup\obeylines\activeparens - % The \empty here prevents misinterpretation of a construct such as - % @deffn {whatever} {Enharmonic comma} - % See comments at \deftpparsebody, although in our case we don't have - % to remove the \empty afterwards, since it is empty. - \spacesplit{#3{#4}}\empty +\def\makedefun#1{% + \expandafter\let\csname E#1\endcsname = \Edefun + \edef\temp{\noexpand\domakedefun + \makecsname{#1}\makecsname{#1x}\makecsname{#1header}}% + \temp } -% Used for @deftypemethod and @deftypeivar. -% #1, #2, #3 are the common arguments (see \defparsebody). -% #4, delimited by a space, is the class name. -% #5 is the method's return type. +% \domakedefun \deffn \deffnx \deffnheader +% +% Define \deffn and \deffnx, without parameters. +% \deffnheader has to be defined explicitly. % -\def\deftypemethparsebody#1#2#3#4 #5 {% - \parsebodycommon{#1}{#2}{#3}% - \def#2##1 ##2 {\defxbodycommon \activeparens \spacesplit{#3{##1}{##2}}}% - \begingroup\obeylines\activeparens - \spacesplit{#3{#4}{#5}}% +\def\domakedefun#1#2#3{% + \envdef#1{% + \startdefun + \parseargusing\activeparens{\printdefunline#3}% + }% + \def#2{\dodefunx#1}% + \def#3% } -% Used for @deftypeop. The change from \deftypemethparsebody is an -% extra argument at the beginning which is the `category', instead of it -% being the hardwired string `Method' or `Instance Variable'. We have -% to account for this both in the \...x definition and in parsing the -% input at hand. Thus also need a control sequence (passed as #5) for -% the \E... definition to assign the category name to. -% -\def\deftypeopparsebody#1#2#3#4#5 #6 {% - \parsebodycommon{#1}{#2}{#3}% - \def#2##1 ##2 ##3 {\def#4{##1}% - \defxbodycommon \activeparens \spacesplit{#3{##2}{##3}}}% - \begingroup\obeylines\activeparens - \spacesplit{#3{#5}{#6}}% -} +%%% Untyped functions: -% For @defop. -\def\defopparsebody #1#2#3#4#5 {% - \parsebodycommon{#1}{#2}{#3}% - \def#2##1 ##2 {\def#4{##1}% - \defxbodycommon \activeparens \spacesplit{#3{##2}}}% - \begingroup\obeylines\activeparens - \spacesplit{#3{#5}}% -} +% @deffn category name args +\makedefun{deffn}{\deffngeneral{}} -% These parsing functions are similar to the preceding ones -% except that they do not make parens into active characters. -% These are used for "variables" since they have no arguments. -% -\def\defvarparsebody #1#2#3{% - \parsebodycommon{#1}{#2}{#3}% - \def#2{\defxbodycommon \spacesplit#3}% - \catcode\equalChar=\active - \begingroup\obeylines - \spacesplit#3% -} +% @deffn category class name args +\makedefun{defop}#1 {\defopon{#1\ \putwordon}} -% @defopvar. -\def\defopvarparsebody #1#2#3#4#5 {% - \parsebodycommon{#1}{#2}{#3}% - \def#2##1 ##2 {\def#4{##1}% - \defxbodycommon \spacesplit{#3{##2}}}% - \begingroup\obeylines - \spacesplit{#3{#5}}% -} +% \defopon {category on}class name args +\def\defopon#1#2 {\deffngeneral{\putwordon\ \code{#2}}{#1\ \code{#2}} } -\def\defvrparsebody#1#2#3#4 {% - \parsebodycommon{#1}{#2}{#3}% - \def#2##1 {\defxbodycommon \spacesplit{#3{##1}}}% - \begingroup\obeylines - \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. +% \deffngeneral {subind}category name args % -\def\deftpparsebody #1#2#3#4 {% - \parsebodycommon{#1}{#2}{#3}% - \def#2##1 {\defxbodycommon \spacesplit{#3{##1}}}% - \begingroup\obeylines - \spacesplit{\parsetpheaderline{#3{#4}}}\empty +\def\deffngeneral#1#2 #3 #4\endheader{% + % Remember that \dosubind{fn}{foo}{} is equivalent to \doind{fn}{foo}. + \dosubind{fn}{\code{#3}}{#1}% + \defname{#2}{}{#3}\magicamp\defunargs{#4\unskip}% } -% Fine, but then we have to eventually remove the \empty *and* the -% braces (if any). That's what this does. -% -\def\removeemptybraces\empty#1\relax{#1} +%%% Typed functions: -% 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{% - #1{\removeemptybraces#2\relax}{#3}% -}% +% @deftypefn category type name args +\makedefun{deftypefn}{\deftypefngeneral{}} -% Split up #2 (the rest of the input line) 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. -% -{\obeylines % - \gdef\spacesplit#1#2^^M{\endgroup\spacesplitx{#1}#2 \relax\spacesplitx}% - \long\gdef\spacesplitx#1#2 #3#4\spacesplitx{% - \ifx\relax #3% - #1{#2}{}% - \else % - #1{#2}{#3#4}% - \fi}% -} +% @deftypeop category class type name args +\makedefun{deftypeop}#1 {\deftypeopon{#1\ \putwordon}} -% Define @defun. +% \deftypeopon {category on}class type name args +\def\deftypeopon#1#2 {\deftypefngeneral{\putwordon\ \code{#2}}{#1\ \code{#2}} } -% This is called to end the arguments processing for all the @def... commands. +% \deftypefngeneral {subind}category type name args % -\def\defargscommonending{% - \interlinepenalty = 10000 - \advance\rightskip by 0pt plus 1fil - \endgraf - \nobreak\vskip -\parskip - \penalty 10002 % signal to \parsebodycommon. +\def\deftypefngeneral#1#2 #3 #4 #5\endheader{% + \dosubind{fn}{\code{#4}}{#1}% + \defname{#2}{#3}{#4}\defunargs{#5\unskip}% } -% This expands the args and terminates the paragraph they comprise. -% -\def\defunargs#1{\functionparens \sl -% Expand, preventing hyphenation at `-' chars. -% Note that groups don't affect changes in \hyphenchar. -% Set the font temporarily and use \font in case \setfont made \tensl a macro. -{\tensl\hyphenchar\font=0}% -#1% -{\tensl\hyphenchar\font=45}% -\ifnum\parencount=0 \else \errmessage{Unbalanced parentheses in @def}\fi% - \defargscommonending -} +%%% Typed variables: -\def\deftypefunargs #1{% -% Expand, preventing hyphenation at `-' chars. -% Note that groups don't affect changes in \hyphenchar. -% Use \boldbraxnoamp, not \functionparens, so that & is not special. -\boldbraxnoamp -\tclose{#1}% avoid \code because of side effects on active chars - \defargscommonending -} +% @deftypevr category type var args +\makedefun{deftypevr}{\deftypecvgeneral{}} -% Do complete processing of one @defun or @defunx line already parsed. +% @deftypecv category class type var args +\makedefun{deftypecv}#1 {\deftypecvof{#1\ \putwordof}} -% @deffn Command forward-char nchars +% \deftypecvof {category of}class type var args +\def\deftypecvof#1#2 {\deftypecvgeneral{\putwordof\ \code{#2}}{#1\ \code{#2}} } -\def\deffn{\defmethparsebody\Edeffn\deffnx\deffnheader} - -\def\deffnheader #1#2#3{\doind {fn}{\code{#2}}% -\begingroup\defname {#2}{#1}\defunargs{#3}\endgroup % -\catcode\equalChar=\other % Turn off change made in \defparsebody +% \deftypecvgeneral {subind}category type var args +% +\def\deftypecvgeneral#1#2 #3 #4 #5\endheader{% + \dosubind{vr}{\code{#4}}{#1}% + \defname{#2}{#3}{#4}\defunargs{#5\unskip}% } -% @defun == @deffn Function +%%% Untyped variables: -\def\defun{\defparsebody\Edefun\defunx\defunheader} +% @defvr category var args +\makedefun{defvr}#1 {\deftypevrheader{#1} {} } -\def\defunheader #1#2{\doind {fn}{\code{#1}}% Make entry in function index -\begingroup\defname {#1}{\putwordDeffunc}% -\defunargs {#2}\endgroup % -\catcode\equalChar=\other % Turn off change made in \defparsebody -} - -% @deftypefun int foobar (int @var{foo}, float @var{bar}) +% @defcv category class var args +\makedefun{defcv}#1 {\defcvof{#1\ \putwordof}} -\def\deftypefun{\defparsebody\Edeftypefun\deftypefunx\deftypefunheader} +% \defcvof {category of}class var args +\def\defcvof#1#2 {\deftypecvof{#1}#2 {} } -% #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 {\defheaderxcond#1\relax$.$#2}{\putwordDeftypefun}% -\deftypefunargs {#3}\endgroup % -\catcode\equalChar=\other % Turn off change made in \defparsebody +%%% Type: +% @deftp category name args +\makedefun{deftp}#1 #2 #3\endheader{% + \doind{tp}{\code{#2}}% + \defname{#1}{}{#2}\defunargs{#3\unskip}% } -% @deftypefn {Library Function} int foobar (int @var{foo}, float @var{bar}) - -\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} +% Remaining @defun-like shortcuts: +\makedefun{defun}{\deffnheader{\putwordDeffunc} } +\makedefun{defmac}{\deffnheader{\putwordDefmac} } +\makedefun{defspec}{\deffnheader{\putwordDefspec} } +\makedefun{deftypefun}{\deftypefnheader{\putwordDeffunc} } +\makedefun{defvar}{\defvrheader{\putwordDefvar} } +\makedefun{defopt}{\defvrheader{\putwordDefopt} } +\makedefun{deftypevar}{\deftypevrheader{\putwordDefvar} } +\makedefun{defmethod}{\defopon\putwordMethodon} +\makedefun{deftypemethod}{\deftypeopon\putwordMethodon} +\makedefun{defivar}{\defcvof\putwordInstanceVariableof} +\makedefun{deftypeivar}{\deftypecvof\putwordInstanceVariableof} -% #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 -\normalparens % notably, turn off `&' magic, which prevents -% at least some C++ text from working -\defname {\defheaderxcond#2\relax$.$#3}{#1}% -\deftypefunargs {#4}\endgroup % -\catcode\equalChar=\other % Turn off change made in \defparsebody +% \defname, which formats the name of the @def (not the args). +% #1 is the category, such as "Function". +% #2 is the return type, if any. +% #3 is the function name. +% +% We are followed by (but not passed) the arguments, if any. +% +\def\defname#1#2#3{% + % Get the values of \leftskip and \rightskip as they were outside the @def... + \advance\leftskip by -\defbodyindent + % + % How we'll format the type name. Putting it in brackets helps + % distinguish it from the body text that may end up on the next line + % just below it. + \def\temp{#1}% + \setbox0=\hbox{\kern\deflastargmargin \ifx\temp\empty\else [\rm\temp]\fi} + % + % Figure out line sizes for the paragraph shape. + % The first line needs space for \box0; but if \rightskip is nonzero, + % we need only space for the part of \box0 which exceeds it: + \dimen0=\hsize \advance\dimen0 by -\wd0 \advance\dimen0 by \rightskip + % The continuations: + \dimen2=\hsize \advance\dimen2 by -\defargsindent + % (plain.tex says that \dimen1 should be used only as global.) + \parshape 2 0in \dimen0 \defargsindent \dimen2 + % + % Put the type name to the right margin. + \noindent + \hbox to 0pt{% + \hfil\box0 \kern-\hsize + % \hsize has to be shortened this way: + \kern\leftskip + % Intentionally do not respect \rightskip, since we need the space. + }% + % + % Allow all lines to be underfull without complaint: + \tolerance=10000 \hbadness=10000 + \exdentamount=\defbodyindent + {% + % defun fonts. We use typewriter by default (used to be bold) because: + % . we're printing identifiers, they should be in tt in principle. + % . in languages with many accents, such as Czech or French, it's + % common to leave accents off identifiers. The result looks ok in + % tt, but exceedingly strange in rm. + % . we don't want -- and --- to be treated as ligatures. + % . this still does not fix the ?` and !` ligatures, but so far no + % one has made identifiers using them :). + \df \tt + \def\temp{#2}% return value type + \ifx\temp\empty\else \tclose{\temp} \fi + #3% output function name + }% + {\rm\enskip}% hskip 0.5 em of \tenrm + % + \boldbrax + % arguments will be output next, if any. } -% @defmac == @deffn Macro - -\def\defmac{\defparsebody\Edefmac\defmacx\defmacheader} +% Print arguments in slanted roman (not ttsl), inconsistently with using +% tt for the name. This is because literal text is sometimes needed in +% the argument list (groff manual), and ttsl and tt are not very +% distinguishable. Prevent hyphenation at `-' chars. +% +\def\defunargs#1{% + % use sl by default (not ttsl), + % tt for the names. + \df \sl \hyphenchar\font=0 + % + % On the other hand, if an argument has two dashes (for instance), we + % want a way to get ttsl. Let's try @var for that. + \let\var=\ttslanted + #1% + \sl\hyphenchar\font=45 +} -\def\defmacheader #1#2{\doind {fn}{\code{#1}}% Make entry in function index -\begingroup\defname {#1}{\putwordDefmac}% -\defunargs {#2}\endgroup % -\catcode\equalChar=\other % Turn off change made in \defparsebody +% We want ()&[] to print specially on the defun line. +% +\def\activeparens{% + \catcode`\(=\active \catcode`\)=\active + \catcode`\[=\active \catcode`\]=\active + \catcode`\&=\active } -% @defspec == @deffn Special Form +% Make control sequences which act like normal parenthesis chars. +\let\lparen = ( \let\rparen = ) -\def\defspec{\defparsebody\Edefspec\defspecx\defspecheader} +% 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. +{ + \activeparens + \global\let(=\lparen \global\let)=\rparen + \global\let[=\lbrack \global\let]=\rbrack + \global\let& = \& -\def\defspecheader #1#2{\doind {fn}{\code{#1}}% Make entry in function index -\begingroup\defname {#1}{\putwordDefspec}% -\defunargs {#2}\endgroup % -\catcode\equalChar=\other % Turn off change made in \defparsebody + \gdef\boldbrax{\let(=\opnr\let)=\clnr\let[=\lbrb\let]=\rbrb} + \gdef\magicamp{\let&=\amprm} } -% @defop CATEGORY CLASS OPERATION ARG... -% -\def\defop #1 {\def\defoptype{#1}% -\defopparsebody\Edefop\defopx\defopheader\defoptype} -% -\def\defopheader#1#2#3{% - \dosubind{fn}{\code{#2}}{\putwordon\ \code{#1}}% function index entry - \begingroup - \defname{#2}{\defoptype\ \putwordon\ #1}% - \defunargs{#3}% - \endgroup -} +\newcount\parencount -% @deftypeop CATEGORY CLASS TYPE OPERATION ARG... -% -\def\deftypeop #1 {\def\deftypeopcategory{#1}% - \deftypeopparsebody\Edeftypeop\deftypeopx\deftypeopheader - \deftypeopcategory} -% -% #1 is the class name, #2 the data type, #3 the operation name, #4 the args. -\def\deftypeopheader#1#2#3#4{% - \dosubind{fn}{\code{#3}}{\putwordon\ \code{#1}}% entry in function index - \begingroup - \defname{\defheaderxcond#2\relax$.$#3} - {\deftypeopcategory\ \putwordon\ \code{#1}}% - \deftypefunargs{#4}% - \endgroup +% If we encounter &foo, then turn on ()-hacking afterwards +\newif\ifampseen +\def\amprm#1 {\ampseentrue{\bf\ }} + +\def\parenfont{% + \ifampseen + % At the first level, print parens in roman, + % otherwise use the default font. + \ifnum \parencount=1 \rm \fi + \else + % The \sf parens (in \boldbrax) actually are a little bolder than + % the contained text. This is especially needed for [ and ] . + \sf + \fi } - -% @deftypemethod CLASS TYPE METHOD ARG... -% -\def\deftypemethod{% - \deftypemethparsebody\Edeftypemethod\deftypemethodx\deftypemethodheader} -% -% #1 is the class name, #2 the data type, #3 the method name, #4 the args. -\def\deftypemethodheader#1#2#3#4{% - \dosubind{fn}{\code{#3}}{\putwordon\ \code{#1}}% entry in function index - \begingroup - \defname{\defheaderxcond#2\relax$.$#3}{\putwordMethodon\ \code{#1}}% - \deftypefunargs{#4}% - \endgroup +\def\infirstlevel#1{% + \ifampseen + \ifnum\parencount=1 + #1% + \fi + \fi } +\def\bfafterword#1 {#1 \bf} -% @deftypeivar CLASS TYPE VARNAME -% -\def\deftypeivar{% - \deftypemethparsebody\Edeftypeivar\deftypeivarx\deftypeivarheader} -% -% #1 is the class name, #2 the data type, #3 the variable name. -\def\deftypeivarheader#1#2#3{% - \dosubind{vr}{\code{#3}}{\putwordof\ \code{#1}}% entry in variable index - \begingroup - \defname{\defheaderxcond#2\relax$.$#3} - {\putwordInstanceVariableof\ \code{#1}}% - \defvarargs{#3}% - \endgroup +\def\opnr{% + \global\advance\parencount by 1 + {\parenfont(}% + \infirstlevel \bfafterword } - -% @defmethod == @defop Method -% -\def\defmethod{\defmethparsebody\Edefmethod\defmethodx\defmethodheader} -% -% #1 is the class name, #2 the method name, #3 the args. -\def\defmethodheader#1#2#3{% - \dosubind{fn}{\code{#2}}{\putwordon\ \code{#1}}% entry in function index - \begingroup - \defname{#2}{\putwordMethodon\ \code{#1}}% - \defunargs{#3}% - \endgroup +\def\clnr{% + {\parenfont)}% + \infirstlevel \sl + \global\advance\parencount by -1 } -% @defcv {Class Option} foo-class foo-flag - -\def\defcv #1 {\def\defcvtype{#1}% -\defopvarparsebody\Edefcv\defcvx\defcvarheader\defcvtype} - -\def\defcvarheader #1#2#3{% - \dosubind{vr}{\code{#2}}{\putwordof\ \code{#1}}% variable index entry - \begingroup - \defname{#2}{\defcvtype\ \putwordof\ #1}% - \defvarargs{#3}% - \endgroup +\newcount\brackcount +\def\lbrb{% + \global\advance\brackcount by 1 + {\bf[}% } - -% @defivar CLASS VARNAME == @defcv {Instance Variable} CLASS VARNAME -% -\def\defivar{\defvrparsebody\Edefivar\defivarx\defivarheader} -% -\def\defivarheader#1#2#3{% - \dosubind{vr}{\code{#2}}{\putwordof\ \code{#1}}% entry in var index - \begingroup - \defname{#2}{\putwordInstanceVariableof\ #1}% - \defvarargs{#3}% - \endgroup +\def\rbrb{% + {\bf]}% + \global\advance\brackcount by -1 } -% @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% - \defargscommonending +\def\checkparencounts{% + \ifnum\parencount=0 \else \badparencount \fi + \ifnum\brackcount=0 \else \badbrackcount \fi } - -% @defvr Counter foo-count - -\def\defvr{\defvrparsebody\Edefvr\defvrx\defvrheader} - -\def\defvrheader #1#2#3{\doind {vr}{\code{#2}}% -\begingroup\defname {#2}{#1}\defvarargs{#3}\endgroup} - -% @defvar == @defvr Variable - -\def\defvar{\defvarparsebody\Edefvar\defvarx\defvarheader} - -\def\defvarheader #1#2{\doind {vr}{\code{#1}}% Make entry in var index -\begingroup\defname {#1}{\putwordDefvar}% -\defvarargs {#2}\endgroup % +\def\badparencount{% + \errmessage{Unbalanced parentheses in @def}% + \global\parencount=0 } - -% @defopt == @defvr {User Option} - -\def\defopt{\defvarparsebody\Edefopt\defoptx\defoptheader} - -\def\defoptheader #1#2{\doind {vr}{\code{#1}}% Make entry in var index -\begingroup\defname {#1}{\putwordDefopt}% -\defvarargs {#2}\endgroup % +\def\badbrackcount{% + \errmessage{Unbalanced square braces in @def}% + \global\brackcount=0 } -% @deftypevar int foobar - -\def\deftypevar{\defvarparsebody\Edeftypevar\deftypevarx\deftypevarheader} - -% #1 is the data type. #2 is the name, perhaps followed by text that -% is actually part of the data type, which should not be put into the index. -\def\deftypevarheader #1#2{% -\dovarind#2 \relax% Make entry in variables index -\begingroup\defname {\defheaderxcond#1\relax$.$#2}{\putwordDeftypevar}% - \defargscommonending -\endgroup} -\def\dovarind#1 #2\relax{\doind{vr}{\code{#1}}} - -% @deftypevr {Global Flag} int enable - -\def\deftypevr{\defvrparsebody\Edeftypevr\deftypevrx\deftypevrheader} - -\def\deftypevrheader #1#2#3{\dovarind#3 \relax% -\begingroup\defname {\defheaderxcond#2\relax$.$#3}{#1} - \defargscommonending -\endgroup} - -% Now define @deftp -% Args are printed in bold, a slight difference from @defvar. - -\def\deftpargs #1{\bf \defvarargs{#1}} - -% @deftp Class window height width ... - -\def\deftp{\deftpparsebody\Edeftp\deftpx\deftpheader} - -\def\deftpheader #1#2#3{\doind {tp}{\code{#2}}% -\begingroup\defname {#2}{#1}\deftpargs{#3}\endgroup} - -% These definitions are used if you use @defunx (etc.) -% anywhere other than immediately after a @defun or @defunx. -% -\def\defcvx#1 {\errmessage{@defcvx in invalid context}} -\def\deffnx#1 {\errmessage{@deffnx in invalid context}} -\def\defivarx#1 {\errmessage{@defivarx in invalid context}} -\def\defmacx#1 {\errmessage{@defmacx in invalid context}} -\def\defmethodx#1 {\errmessage{@defmethodx in invalid context}} -\def\defoptx #1 {\errmessage{@defoptx in invalid context}} -\def\defopx#1 {\errmessage{@defopx in invalid context}} -\def\defspecx#1 {\errmessage{@defspecx in invalid context}} -\def\deftpx#1 {\errmessage{@deftpx in invalid context}} -\def\deftypefnx#1 {\errmessage{@deftypefnx in invalid context}} -\def\deftypefunx#1 {\errmessage{@deftypefunx in invalid context}} -\def\deftypeivarx#1 {\errmessage{@deftypeivarx in invalid context}} -\def\deftypemethodx#1 {\errmessage{@deftypemethodx in invalid context}} -\def\deftypeopx#1 {\errmessage{@deftypeopx in invalid context}} -\def\deftypevarx#1 {\errmessage{@deftypevarx in invalid context}} -\def\deftypevrx#1 {\errmessage{@deftypevrx in invalid context}} -\def\defunx#1 {\errmessage{@defunx in invalid context}} -\def\defvarx#1 {\errmessage{@defvarx in invalid context}} -\def\defvrx#1 {\errmessage{@defvrx in invalid context}} - \message{macros,} % @macro. @@ -5484,28 +5420,33 @@ width0pt\relax} \fi % To do this right we need a feature of e-TeX, \scantokens, % which we arrange to emulate with a temporary file in ordinary TeX. \ifx\eTeXversion\undefined - \newwrite\macscribble - \def\scanmacro#1{% - \begingroup \newlinechar`\^^M - % Undo catcode changes of \startcontents and \doprintindex - \catcode`\@=0 \catcode`\\=\other \escapechar=`\@ - % Append \endinput to make sure that TeX does not see the ending newline. - \toks0={#1\endinput}% - \immediate\openout\macscribble=\jobname.tmp - \immediate\write\macscribble{\the\toks0}% - \immediate\closeout\macscribble - \let\xeatspaces\eatspaces - \input \jobname.tmp - \endgroup -} -\else -\def\scanmacro#1{% -\begingroup \newlinechar`\^^M -% Undo catcode changes of \startcontents and \doprintindex -\catcode`\@=0 \catcode`\\=\other \escapechar=`\@ -\let\xeatspaces\eatspaces\scantokens{#1\endinput}\endgroup} + \newwrite\macscribble + \def\scantokens#1{% + \toks0={#1\endinput}% + \immediate\openout\macscribble=\jobname.tmp + \immediate\write\macscribble{\the\toks0}% + \immediate\closeout\macscribble + \input \jobname.tmp + } \fi +\def\scanmacro#1{% + \begingroup + \newlinechar`\^^M + \let\xeatspaces\eatspaces + % Undo catcode changes of \startcontents and \doprintindex + \catcode`\@=0 \catcode`\\=\other \escapechar=`\@ + % ... and \example + \spaceisspace + % + % Append \endinput to make sure that TeX does not see the ending newline. + % + % I've verified that it is necessary both for e-TeX and for ordinary TeX + % --kasal, 29nov03 + \scantokens{#1\endinput}% + \endgroup +} + \newcount\paramno % Count of parameters \newtoks\macname % Macro name \newif\ifrecursive % Is it recursive? @@ -5513,7 +5454,7 @@ width0pt\relax} \fi % \do\macro1\do\macro2... % Utility routines. -% Thisdoes \let #1 = #2, except with \csnames. +% This does \let #1 = #2, except with \csnames. \def\cslet#1#2{% \expandafter\expandafter \expandafter\let @@ -5610,8 +5551,7 @@ width0pt\relax} \fi \else \expandafter\parsemacbody \fi} -\def\unmacro{\parsearg\dounmacro} -\def\dounmacro#1{% +\parseargdef\unmacro{% \if1\csname ismacro.#1\endcsname \global\cslet{#1}{macsave.#1}% \global\expandafter\let \csname ismacro.#1\endcsname=0% @@ -5628,7 +5568,7 @@ width0pt\relax} \fi % Called by \do from \dounmacro on each macro. The idea is to omit any % macro definitions that have been changed to \relax. -% +% \def\unmacrodo#1{% \ifx#1\relax % remove this @@ -5761,16 +5701,18 @@ width0pt\relax} \fi % @alias. % We need some trickery to remove the optional spaces around the equal % sign. Just make them active and then expand them all to nothing. -\def\alias{\begingroup\obeyspaces\parsearg\aliasxxx} +\def\alias{\parseargusing\obeyspaces\aliasxxx} \def\aliasxxx #1{\aliasyyy#1\relax} -\def\aliasyyy #1=#2\relax{\ignoreactivespaces -\edef\next{\global\let\expandafter\noexpand\csname#1\endcsname=% - \expandafter\noexpand\csname#2\endcsname}% -\expandafter\endgroup\next} +\def\aliasyyy #1=#2\relax{% + {% + \expandafter\let\obeyedspace=\empty + \xdef\next{\global\let\makecsname{#1}=\makecsname{#2}}% + }% + \next +} \message{cross references,} -% @xref etc. \newwrite\auxfile @@ -5782,64 +5724,61 @@ width0pt\relax} \fi \def\inforefzzz #1,#2,#3,#4**{\putwordSee{} \putwordInfo{} \putwordfile{} \file{\ignorespaces #3{}}, node \samp{\ignorespaces#1{}}} -% @node's job is to define \lastnode. -\def\node{\ENVcheck\parsearg\nodezzz} -\def\nodezzz#1{\nodexxx [#1,]} -\def\nodexxx[#1,#2]{\gdef\lastnode{#1}} +% @node's only job in TeX is to define \lastnode, which is used in +% cross-references. +\parseargdef\node{\checkenv{}\nodexxx #1,\finishnodeparse} +\def\nodexxx#1,#2\finishnodeparse{\gdef\lastnode{#1}} \let\nwnode=\node -\let\lastnode=\relax - -% The sectioning commands (@chapter, etc.) call these. -\def\donoderef{% - \ifx\lastnode\relax\else - \expandafter\expandafter\expandafter\setref{\lastnode}% - {Ysectionnumberandtype}% - \global\let\lastnode=\relax - \fi -} -\def\unnumbnoderef{% - \ifx\lastnode\relax\else - \expandafter\expandafter\expandafter\setref{\lastnode}{Ynothing}% - \global\let\lastnode=\relax - \fi -} -\def\appendixnoderef{% - \ifx\lastnode\relax\else - \expandafter\expandafter\expandafter\setref{\lastnode}% - {Yappendixletterandtype}% - \global\let\lastnode=\relax +\let\lastnode=\empty + +% Write a cross-reference definition for the current node. #1 is the +% type (Ynumbered, Yappendix, Ynothing). +% +\def\donoderef#1{% + \ifx\lastnode\empty\else + \setref{\lastnode}{#1}% + \global\let\lastnode=\empty \fi } - % @anchor{NAME} -- define xref target at arbitrary point. % \newcount\savesfregister -\gdef\savesf{\relax \ifhmode \savesfregister=\spacefactor \fi} -\gdef\restoresf{\relax \ifhmode \spacefactor=\savesfregister \fi} -\gdef\anchor#1{\savesf \setref{#1}{Ynothing}\restoresf \ignorespaces} +% +\def\savesf{\relax \ifhmode \savesfregister=\spacefactor \fi} +\def\restoresf{\relax \ifhmode \spacefactor=\savesfregister \fi} +\def\anchor#1{\savesf \setref{#1}{Ynothing}\restoresf \ignorespaces} % \setref{NAME}{SNT} defines a cross-reference point NAME (a node or an -% anchor), namely NAME-title (the corresponding @chapter/etc. name), -% NAME-pg (the page number), and NAME-snt (section number and type). -% Called from \foonoderef. +% anchor), which consists of three parts: +% 1) NAME-title - the current sectioning name taken from \thissection, +% or the anchor name. +% 2) NAME-snt - section number and type, passed as the SNT arg, or +% empty for anchors. +% 3) NAME-pg - the page number. % -% We have to set \indexdummies so commands such as @code in a section -% title aren't expanded. It would be nicer not to expand the titles in -% the first place, but there's so many layers that that is hard to do. -% -% Likewise, use \turnoffactive so that punctuation chars such as underscore -% and backslash work in node names. +% This is called from \donoderef, \anchor, and \dofloat. In the case of +% floats, there is an additional part, which is not written here: +% 4) NAME-lof - the text as it should appear in a @listoffloats. % -\def\setref#1#2{{% - \atdummies +\def\setref#1#2{% \pdfmkdest{#1}% - % - \turnoffactive - \dosetq{#1-title}{Ytitle}% - \dosetq{#1-pg}{Ypagenumber}% - \dosetq{#1-snt}{#2}% -}} + \iflinks + {% + \atdummies % preserve commands, but don't expand them + \turnoffactive + \otherbackslash + \edef\writexrdef##1##2{% + \write\auxfile{@xrdef{#1-% #1 of \setref, expanded by the \edef + ##1}{##2}}% these are parameters of \writexrdef + }% + \toks0 = \expandafter{\thissection}% + \immediate \writexrdef{title}{\the\toks0 }% + \immediate \writexrdef{snt}{\csname #2\endcsname}% \Ynumbered etc. + \writexrdef{pg}{\folio}% will be written later, during \shipout + }% + \fi +} % @xref, @pxref, and @ref generate cross-references. For \xrefX, #1 is % the node name, #2 the name of the Info cross-reference, #3 the printed @@ -5852,38 +5791,33 @@ width0pt\relax} \fi \def\xrefX[#1,#2,#3,#4,#5,#6]{\begingroup \unsepspaces \def\printedmanual{\ignorespaces #5}% - \def\printednodename{\ignorespaces #3}% - \setbox1=\hbox{\printedmanual}% - \setbox0=\hbox{\printednodename}% + \def\printedrefname{\ignorespaces #3}% + \setbox1=\hbox{\printedmanual\unskip}% + \setbox0=\hbox{\printedrefname\unskip}% \ifdim \wd0 = 0pt % No printed node name was explicitly given. \expandafter\ifx\csname SETxref-automatic-section-title\endcsname\relax % Use the node name inside the square brackets. - \def\printednodename{\ignorespaces #1}% + \def\printedrefname{\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}% + \def\printedrefname{\ignorespaces #1}% \else \ifhavexrefs % We know the real title if we have the xref values. - \def\printednodename{\refx{#1-title}{}}% + \def\printedrefname{\refx{#1-title}{}}% \else % Otherwise just copy the Info node name. - \def\printednodename{\ignorespaces #1}% + \def\printedrefname{\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. + % Make link in pdf output. \ifpdf \leavevmode \getfilename{#4}% @@ -5893,53 +5827,86 @@ width0pt\relax} \fi goto file{\the\filename.pdf} name{#1}% \else \startlink attr{/Border [0 0 0]}% - goto name{#1}% + goto name{\pdfmkpgn{#1}}% \fi }% \linkcolor \fi % - \ifdim \wd1 > 0pt - \putwordsection{} ``\printednodename'' \putwordin{} \cite{\printedmanual}% + % Float references are printed completely differently: "Figure 1.2" + % instead of "[somenode], p.3". We distinguish them by the + % LABEL-title being set to a magic string. + {% + % Have to otherify everything special to allow the \csname to + % include an _ in the xref name, etc. + \indexnofonts + \turnoffactive + \otherbackslash + \expandafter\global\expandafter\let\expandafter\Xthisreftitle + \csname XR#1-title\endcsname + }% + \iffloat\Xthisreftitle + % If the user specified the print name (third arg) to the ref, + % print it instead of our usual "Figure 1.2". + \ifdim\wd0 = 0pt + \refx{#1-snt}% + \else + \printedrefname + \fi + % + % if the user also gave the printed manual name (fifth arg), append + % "in MANUALNAME". + \ifdim \wd1 > 0pt + \space \putwordin{} \cite{\printedmanual}% + \fi \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 \otherbackslash - % Only output a following space if the -snt ref is nonempty; for - % @unnumbered and @anchor, it won't be. - \setbox2 = \hbox{\ignorespaces \refx{#1-snt}{}}% - \ifdim \wd2 > 0pt \refx{#1-snt}\space\fi - }% - % [mynode], - [\printednodename],\space - % page 3 - \turnoffactive \otherbackslash \putwordpage\tie\refx{#1-pg}{}% + % node/anchor (non-float) references. + % + % 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{} ``\printedrefname'' \putwordin{} \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 \otherbackslash + % Only output a following space if the -snt ref is nonempty; for + % @unnumbered and @anchor, it won't be. + \setbox2 = \hbox{\ignorespaces \refx{#1-snt}{}}% + \ifdim \wd2 > 0pt \refx{#1-snt}\space\fi + }% + % output the `[mynode]' via a macro so it can be overridden. + \xrefprintnodename\printedrefname + % + % But we always want a comma and a space: + ,\space + % + % output the `page 3'. + \turnoffactive \otherbackslash \putwordpage\tie\refx{#1-pg}{}% + \fi \fi \endlink \endgroup} -% \dosetq is called from \setref to do the actual \write (\iflinks). +% This macro is called from \xrefX for the `[nodename]' part of xref +% output. It's a separate macro only so it can be changed more easily, +% since square brackets don't work well in some documents. Particularly +% one that Bob is working on :). % -\def\dosetq#1#2{% - {\let\folio=0% - \edef\next{\write\auxfile{\internalsetq{#1}{#2}}}% - \iflinks \next \fi - }% -} - -% \internalsetq{foo}{page} expands into -% CHARACTERS @xrdef{foo}{...expansion of \page...} -\def\internalsetq#1#2{@xrdef{#1}{\csname #2\endcsname}} +\def\xrefprintnodename#1{[#1]} -% Things to be expanded by \internalsetq. -% -\def\Ypagenumber{\folio} -\def\Ytitle{\thissection} +% Things referred to by \setref. +% \def\Ynothing{} -\def\Ysectionnumberandtype{% +\def\Yomitfromtoc{} +\def\Ynumbered{% \ifnum\secno=0 \putwordChapter@tie \the\chapno \else \ifnum\subsecno=0 @@ -5950,8 +5917,7 @@ width0pt\relax} \fi \putwordSection@tie \the\chapno.\the\secno.\the\subsecno.\the\subsubsecno \fi\fi\fi } - -\def\Yappendixletterandtype{% +\def\Yappendix{% \ifnum\secno=0 \putwordAppendix@tie @char\the\appendixno{}% \else \ifnum\subsecno=0 @@ -5964,15 +5930,6 @@ width0pt\relax} \fi \fi\fi\fi } -% 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 % Pre-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. % @@ -5981,7 +5938,7 @@ width0pt\relax} \fi \indexnofonts \otherbackslash \expandafter\global\expandafter\let\expandafter\thisrefX - \csname X#1\endcsname + \csname XR#1\endcsname }% \ifx\thisrefX\relax % If not defined, say something at least. @@ -6003,11 +5960,44 @@ width0pt\relax} \fi #2% Output the suffix in any case. } -% This is the macro invoked by entries in the aux file. +% This is the macro invoked by entries in the aux file. Usually it's +% just a \def (we prepend XR to the control sequence name to avoid +% collisions). But if this is a float type, we have more work to do. % -\def\xrdef#1{\expandafter\gdef\csname X#1\endcsname} +\def\xrdef#1#2{% + \expandafter\gdef\csname XR#1\endcsname{#2}% remember this xref value. + % + % Was that xref control sequence that we just defined for a float? + \expandafter\iffloat\csname XR#1\endcsname + % it was a float, and we have the (safe) float type in \iffloattype. + \expandafter\let\expandafter\floatlist + \csname floatlist\iffloattype\endcsname + % + % Is this the first time we've seen this float type? + \expandafter\ifx\floatlist\relax + \toks0 = {\do}% yes, so just \do + \else + % had it before, so preserve previous elements in list. + \toks0 = \expandafter{\floatlist\do}% + \fi + % + % Remember this xref in the control sequence \floatlistFLOATTYPE, + % for later use in \listoffloats. + \expandafter\xdef\csname floatlist\iffloattype\endcsname{\the\toks0{#1}}% + \fi +} % Read the last existing aux file, if any. No error if none exists. +% +\def\tryauxfile{% + \openin 1 \jobname.aux + \ifeof 1 \else + \readauxfile + \global\havexrefstrue + \fi + \closein 1 +} + \def\readauxfile{\begingroup \catcode`\^^@=\other \catcode`\^^A=\other @@ -6066,7 +6056,16 @@ width0pt\relax} \fi \catcode`\%=\other \catcode`+=\other % avoid \+ for paranoia even though we've turned it off % - % Make the characters 128-255 be printing characters + % This is to support \ in node names and titles, since the \ + % characters end up in a \csname. It's easier than + % leaving it active and making its active definition an actual \ + % character. What I don't understand is why it works in the *value* + % of the xrdef. Seems like it should be a catcode12 \, and that + % should not typeset properly. But it works, so I'm moving on for + % now. --karl, 15jan04. + \catcode`\\=\other + % + % Make the characters 128-255 be printing characters. {% \count 1=128 \def\loop{% @@ -6076,31 +6075,17 @@ width0pt\relax} \fi }% }% % - % 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 $-fun}{page ...} made by @defun ^^ - % Reference to such entries still does not work the way one would wish, - % but at least they do not bomb out when the aux file is read in. - \catcode`\\=\other - % - % @ is our escape character in .aux files. + % @ is our escape character in .aux files, and we need braces. \catcode`\{=1 \catcode`\}=2 \catcode`\@=0 % - \openin 1 \jobname.aux - \ifeof 1 \else - \closein 1 - \input \jobname.aux - \global\havexrefstrue - \global\warnedobstrue - \fi - % Open the new aux file. TeX will close it automatically at exit. - \openout\auxfile=\jobname.aux + \input \jobname.aux \endgroup} -% Footnotes. +\message{insertions,} +% including footnotes. \newcount \footnoteno @@ -6114,19 +6099,19 @@ width0pt\relax} \fi % @footnotestyle is meaningful for info output only. \let\footnotestyle=\comment -\let\ptexfootnote=\footnote - {\catcode `\@=11 % % Auto-number footnotes. Otherwise like plain. \gdef\footnote{% + \let\indent=\ptexindent + \let\noindent=\ptexnoindent \global\advance\footnoteno by \@ne \edef\thisfootno{$^{\the\footnoteno}$}% % % In case the footnote comes at the end of a sentence, preserve the % extra spacing after we do the footnote number. \let\@sf\empty - \ifhmode\edef\@sf{\spacefactor\the\spacefactor}\/\fi + \ifhmode\edef\@sf{\spacefactor\the\spacefactor}\ptexslash\fi % % Remove inadvertent blank space before typesetting the footnote number. \unskip @@ -6137,17 +6122,12 @@ width0pt\relax} \fi % 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. % -% Oh yes, they do; otherwise, @ifset and anything else that uses -% \parseargline fail inside footnotes because the tokens are fixed when +% Oh yes, they do; otherwise, @ifset (and anything else that uses +% \parseargline) fails inside footnotes because the tokens are fixed when % the footnote is read. --karl, 16nov96. % -% The start of the footnote looks usually like this: -\gdef\startfootins{\insert\footins\bgroup} -% -% ... but this macro is redefined inside @multitable. -% \gdef\dofootnote{% - \startfootins + \insert\footins\bgroup % 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. @@ -6183,40 +6163,66 @@ width0pt\relax} \fi } }%end \catcode `\@=11 -% @| 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). +% In case a @footnote appears in a vbox, save the footnote text and create +% the real \insert just after the vbox finished. Otherwise, the insertion +% would be lost. +% Similarily, if a @footnote appears inside an alignment, save the footnote +% text to a box and make the \insert when a row of the table is finished. +% And the same can be done for other insert classes. --kasal, 16nov03. + +% Replace the \insert primitive by a cheating macro. +% Deeper inside, just make sure that the saved insertions are not spilled +% out prematurely. % -\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 - }% - }% +\def\startsavinginserts{% + \ifx \insert\ptexinsert + \let\insert\saveinsert + \else + \let\checkinserts\relax + \fi } -% 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). +% This \insert replacement works for both \insert\footins{foo} and +% \insert\footins\bgroup foo\egroup, but it doesn't work for \insert27{foo}. % -\def\finalout{\overfullrule=0pt} +\def\saveinsert#1{% + \edef\next{\noexpand\savetobox \makeSAVEname#1}% + \afterassignment\next + % swallow the left brace + \let\temp = +} +\def\makeSAVEname#1{\makecsname{SAVE\expandafter\gobble\string#1}} +\def\savetobox#1{\global\setbox#1 = \vbox\bgroup \unvbox#1} + +\def\checksaveins#1{\ifvoid#1\else \placesaveins#1\fi} + +\def\placesaveins#1{% + \ptexinsert \csname\expandafter\gobblesave\string#1\endcsname + {\box#1}% +} + +% eat @SAVE -- beware, all of them have catcode \other: +{ + \def\dospecials{\do S\do A\do V\do E} \uncatcodespecials % ;-) + \gdef\gobblesave @SAVE{} +} + +% initialization: +\def\newsaveins #1{% + \edef\next{\noexpand\newsaveinsX \makeSAVEname#1}% + \next +} +\def\newsaveinsX #1{% + \csname newbox\endcsname #1% + \expandafter\def\expandafter\checkinserts\expandafter{\checkinserts + \checksaveins #1}% +} + +% initialize: +\let\checkinserts\empty +\newsaveins\footins +\newsaveins\margin + % @image. We use the macros from epsf.tex to support this. % If epsf.tex is not installed and @image is used, we complain. @@ -6226,12 +6232,12 @@ width0pt\relax} \fi % undone and the next image would fail. \openin 1 = epsf.tex \ifeof 1 \else - \closein 1 % Do not bother showing banner with epsf.tex v2.7k (available in % doc/epsf.tex and on ctan). \def\epsfannounce{\toks0 = }% \input epsf.tex \fi +\closein 1 % % We will only complain once about lack of epsf.tex. \newif\ifwarnednoepsf @@ -6267,7 +6273,7 @@ width0pt\relax} \fi \nobreak\bigskip % Usually we'll have text after the image which will insert % \parskip glue, so insert it here too to equalize the space - % above and below. + % above and below. \nobreak\vskip\parskip \nobreak \line\bgroup\hss @@ -6287,6 +6293,249 @@ width0pt\relax} \fi \endgroup} +% @float FLOATTYPE,LOC ... @end float for displayed figures, tables, etc. +% We don't actually implement floating yet, we just plop the float "here". +% But it seemed the best name for the future. +% +\envparseargdef\float{\dofloat #1,,,\finish} + +% #1 is the optional FLOATTYPE, the text label for this float, typically +% "Figure", "Table", "Example", etc. Can't contain commas. If omitted, +% this float will not be numbered and cannot be referred to. +% +% #2 is the optional xref label. Also must be present for the float to +% be referable. +% +% #3 is the optional positioning argument; for now, it is ignored. It +% will somehow specify the positions allowed to float to (here, top, bottom). +% +% We keep a separate counter for each FLOATTYPE, which we reset at each +% chapter-level command. +\let\resetallfloatnos=\empty +% +\def\dofloat#1,#2,#3,#4\finish{% + \let\thiscaption=\empty + \let\thisshortcaption=\empty + % + % don't lose footnotes inside @float. + \startsavinginserts + % + \vtop\bgroup + \def\floattype{#1}% + \def\floatlabel{#2}% + \def\floatloc{#3}% we do nothing with this yet. + % + \ifx\floattype\empty + \let\safefloattype=\empty + \else + {% + % the floattype might have accents or other special characters, + % but we need to use it in a control sequence name. + \indexnofonts + \turnoffactive + \xdef\safefloattype{\floattype}% + }% + \fi + % + % If label is given but no type, we handle that as the empty type. + \ifx\floatlabel\empty \else + % We want each FLOATTYPE to be numbered separately (Figure 1, + % Table 1, Figure 2, ...). (And if no label, no number.) + % + \expandafter\getfloatno\csname\safefloattype floatno\endcsname + \global\advance\floatno by 1 + % + {% + % This magic value for \thissection is output by \setref as the + % XREFLABEL-title value. \xrefX uses it to distinguish float + % labels (which have a completely different output format) from + % node and anchor labels. And \xrdef uses it to construct the + % lists of floats. + % + \edef\thissection{\floatmagic=\safefloattype}% + \setref{\floatlabel}{Yfloat}% + }% + \fi + % + % start with \parskip glue, I guess. + \vskip\parskip + % + % Don't suppress indentation if a float happens to start a section. + \restorefirstparagraphindent +} + +% we have these possibilities: +% @float Foo,lbl & @caption{Cap}: Foo 1.1: Cap +% @float Foo,lbl & no caption: Foo 1.1 +% @float Foo & @caption{Cap}: Foo: Cap +% @float Foo & no caption: Foo +% @float ,lbl & Caption{Cap}: 1.1: Cap +% @float ,lbl & no caption: 1.1 +% @float & @caption{Cap}: Cap +% @float & no caption: +% +\def\Efloat{% + \let\floatident = \empty + % + % In all cases, if we have a float type, it comes first. + \ifx\floattype\empty \else \def\floatident{\floattype}\fi + % + % If we have an xref label, the number comes next. + \ifx\floatlabel\empty \else + \ifx\floattype\empty \else % if also had float type, need tie first. + \appendtomacro\floatident{\tie}% + \fi + % the number. + \appendtomacro\floatident{\chaplevelprefix\the\floatno}% + \fi + % + % Start the printed caption with what we've constructed in + % \floatident, but keep it separate; we need \floatident again. + \let\captionline = \floatident + % + \ifx\thiscaption\empty \else + \ifx\floatident\empty \else + \appendtomacro\captionline{: }% had ident, so need a colon between + \fi + % + % caption text. + \appendtomacro\captionline\thiscaption + \fi + % + % If we have anything to print, print it, with space before. + % Eventually this needs to become an \insert. + \ifx\captionline\empty \else + \vskip.5\parskip + \captionline + \fi + % + % If have an xref label, write the list of floats info. Do this + % after the caption, to avoid chance of it being a breakpoint. + \ifx\floatlabel\empty \else + % Write the text that goes in the lof to the aux file as + % \floatlabel-lof. Besides \floatident, we include the short + % caption if specified, else the full caption if specified, else nothing. + {% + \atdummies \turnoffactive \otherbackslash + \immediate\write\auxfile{@xrdef{\floatlabel-lof}{% + \floatident + \ifx\thisshortcaption\empty + \ifx\thiscaption\empty \else : \thiscaption \fi + \else + : \thisshortcaption + \fi + }}% + }% + \fi + % + % Space below caption, if we printed anything. + \ifx\printedsomething\empty \else \vskip\parskip \fi + \egroup % end of \vtop + \checkinserts +} + +% Append the tokens #2 to the definition of macro #1, not expanding either. +% +\newtoks\appendtomacroAtoks +\newtoks\appendtomacroBtoks +\def\appendtomacro#1#2{% + \appendtomacroAtoks = \expandafter{#1}% + \appendtomacroBtoks = {#2}% + \edef#1{\the\appendtomacroAtoks \the\appendtomacroBtoks}% +} + +% @caption, @shortcaption are easy. +% +\long\def\caption#1{\checkenv\float \def\thiscaption{#1}} +\def\shortcaption#1{\checkenv\float \def\thisshortcaption{#1}} + +% The parameter is the control sequence identifying the counter we are +% going to use. Create it if it doesn't exist and assign it to \floatno. +\def\getfloatno#1{% + \ifx#1\relax + % Haven't seen this figure type before. + \csname newcount\endcsname #1% + % + % Remember to reset this floatno at the next chap. + \expandafter\gdef\expandafter\resetallfloatnos + \expandafter{\resetallfloatnos #1=0 }% + \fi + \let\floatno#1% +} + +% \setref calls this to get the XREFLABEL-snt value. We want an @xref +% to the FLOATLABEL to expand to "Figure 3.1". We call \setref when we +% first read the @float command. +% +\def\Yfloat{\floattype@tie \chaplevelprefix\the\floatno}% + +% Magic string used for the XREFLABEL-title value, so \xrefX can +% distinguish floats from other xref types. +\def\floatmagic{!!float!!} + +% #1 is the control sequence we are passed; we expand into a conditional +% which is true if #1 represents a float ref. That is, the magic +% \thissection value which we \setref above. +% +\def\iffloat#1{\expandafter\doiffloat#1==\finish} +% +% #1 is (maybe) the \floatmagic string. If so, #2 will be the +% (safe) float type for this float. We set \iffloattype to #2. +% +\def\doiffloat#1=#2=#3\finish{% + \def\temp{#1}% + \def\iffloattype{#2}% + \ifx\temp\floatmagic +} + +% @listoffloats FLOATTYPE - print a list of floats like a table of contents. +% +\parseargdef\listoffloats{% + \def\floattype{#1}% floattype + {% + % the floattype might have accents or other special characters, + % but we need to use it in a control sequence name. + \indexnofonts + \turnoffactive + \xdef\safefloattype{\floattype}% + }% + % + % \xrdef saves the floats as a \do-list in \floatlistSAFEFLOATTYPE. + \expandafter\ifx\csname floatlist\safefloattype\endcsname \relax + \ifhavexrefs + % if the user said @listoffloats foo but never @float foo. + \message{\linenumber No `\safefloattype' floats to list.}% + \fi + \else + \begingroup + \leftskip=\tocindent % indent these entries like a toc + \let\do=\listoffloatsdo + \csname floatlist\safefloattype\endcsname + \endgroup + \fi +} + +% This is called on each entry in a list of floats. We're passed the +% xref label, in the form LABEL-title, which is how we save it in the +% aux file. We strip off the -title and look up \XRLABEL-lof, which +% has the text we're supposed to typeset here. +% +% Figures without xref labels will not be included in the list (since +% they won't appear in the aux file). +% +\def\listoffloatsdo#1{\listoffloatsdoentry#1\finish} +\def\listoffloatsdoentry#1-title\finish{{% + % Can't fully expand XR#1-lof because it can contain anything. Just + % pass the control sequence. On the other hand, XR#1-pg is just the + % page number, and we want to fully expand that so we can get a link + % in pdf output. + \toksA = \expandafter{\csname XR#1-lof\endcsname}% + % + % use the same \entry macro we use to generate the TOC and index. + \edef\writeentry{\noexpand\entry{\the\toksA}{\csname XR#1-pg\endcsname}}% + \writeentry +}} + \message{localization,} % and i18n. @@ -6295,19 +6544,17 @@ width0pt\relax} \fi % properly. Single argument is the language abbreviation. % It would be nice if we could set up a hyphenation file here. % -\def\documentlanguage{\parsearg\dodocumentlanguage} -\def\dodocumentlanguage#1{% +\parseargdef\documentlanguage{% \tex % read txi-??.tex file in plain TeX. - % Read the file if it exists. - \openin 1 txi-#1.tex - \ifeof1 - \errhelp = \nolanghelp - \errmessage{Cannot read language file txi-#1.tex}% - \let\temp = \relax - \else - \def\temp{\input txi-#1.tex }% - \fi - \temp + % Read the file if it exists. + \openin 1 txi-#1.tex + \ifeof 1 + \errhelp = \nolanghelp + \errmessage{Cannot read language file txi-#1.tex}% + \else + \input txi-#1.tex + \fi + \closein 1 \endgroup } \newhelp\nolanghelp{The given language definition file cannot be found or @@ -6355,7 +6602,7 @@ should work if nowhere else does.} % Parameters in order: 1) textheight; 2) textwidth; 3) voffset; % 4) hoffset; 5) binding offset; 6) topskip; 7) physical page height; 8) % physical page width. -% +% % We also call \setleading{\textleading}, so the caller should define % \textleading. The caller should also set \parskip. % @@ -6423,7 +6670,7 @@ should work if nowhere else does.} \parskip = 3pt plus 2pt minus 1pt \textleading = 13.2pt % - % Double-side printing via postscript on Laserjet 4050 + % Double-side printing via postscript on Laserjet 4050 % prints double-sided nicely when \bindingoffset=10mm and \hoffset=-6mm. % To change the settings for a different printer or situation, adjust % \normaloffset until the front-side and back-side texts align. Then @@ -6464,7 +6711,7 @@ should work if nowhere else does.} \tableindent = 12mm }} -% A specific text layout, 24x15cm overall, intended for A4 paper. +% A specific text layout, 24x15cm overall, intended for A4 paper. \def\afourlatex{{\globaldefs = 1 \afourpaper \internalpagesizes{237mm}{150mm}% @@ -6490,8 +6737,7 @@ should work if nowhere else does.} % Perhaps we should allow setting the margins, \topskip, \parskip, % and/or leading, also. Or perhaps we should compute them somehow. % -\def\pagesizes{\parsearg\pagesizesxxx} -\def\pagesizesxxx#1{\pagesizesyyy #1,,\finish} +\parseargdef\pagesizes{\pagesizesyyy #1,,\finish} \def\pagesizesyyy#1,#2,#3\finish{{% \setbox0 = \hbox{\ignorespaces #2}\ifdim\wd0 > 0pt \hsize=#2\relax \fi \globaldefs = 1 @@ -6538,8 +6784,8 @@ should work if nowhere else does.} \def\normalplus{+} \def\normaldollar{$}%$ font-lock fix -% 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, +% This macro is used to make a character print one way in \tt +% (where it can probably be output as-is), 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 @@ -6587,13 +6833,6 @@ should work if nowhere else does.} \catcode`\$=\active \def${\ifusingit{{\sl\$}}\normaldollar}%$ font-lock fix -% Set up an active definition for =, but don't enable it most of the time. -{\catcode`\==\active -\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. @@ -6602,15 +6841,16 @@ should work if nowhere else does.} \catcode`\@=0 -% \rawbackslashxx outputs one backslash character in current font, +% \backslashcurfont outputs one backslash character in current font, % as in \char`\\. -\global\chardef\rawbackslashxx=`\\ +\global\chardef\backslashcurfont=`\\ +\global\let\rawbackslashxx=\backslashcurfont % let existing .??s files work -% \rawbackslash defines an active \ to do \rawbackslashxx. +% \rawbackslash defines an active \ to do \backslashcurfont. % \otherbackslash defines an active \ to be a literal `\' character with % catcode other. {\catcode`\\=\active - @gdef@rawbackslash{@let\=@rawbackslashxx} + @gdef@rawbackslash{@let\=@backslashcurfont} @gdef@otherbackslash{@let\=@realbackslash} } @@ -6618,7 +6858,7 @@ should work if nowhere else does.} {\catcode`\\=\other @gdef@realbackslash{\}} % \normalbackslash outputs one backslash in fixed width font. -\def\normalbackslash{{\tt\rawbackslashxx}} +\def\normalbackslash{{\tt\backslashcurfont}} \catcode`\\=\active @@ -6635,12 +6875,13 @@ should work if nowhere else does.} @let>=@normalgreater @let+=@normalplus @let$=@normaldollar %$ font-lock fix + @unsepspaces } % Same as @turnoffactive except outputs \ as {\tt\char`\\} instead of % the literal character `\'. (Thus, \ is not expandable when this is in % effect.) -% +% @def@normalturnoffactive{@turnoffactive @let\=@normalbackslash} % Make _ and + \other characters, temporarily. @@ -6669,15 +6910,11 @@ should work if nowhere else does.} % Say @foo, not \foo, in error messages. @escapechar = `@@ -% These look ok in all fonts, so just make them not special. +% These look ok in all fonts, so just make them not special. @catcode`@& = @other @catcode`@# = @other @catcode`@% = @other -@c Set initial fonts. -@textfonts -@rm - @c Local variables: @c eval: (add-hook 'write-file-hooks 'time-stamp) @@ -6686,3 +6923,9 @@ should work if nowhere else does.} @c time-stamp-format: "%:y-%02m-%02d.%02H" @c time-stamp-end: "}" @c End: + +@c vim:sw=2: + +@ignore + arch-tag: e1b36e32-c96e-4135-a41a-0b2efa2ea115 +@end ignore |