Merge branch 'master' of git+ssh://repo.or.cz/srv/git/org-mode
[org-mode.git] / texinfo.tex
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1 % texinfo.tex -- TeX macros to handle Texinfo files.
3 % Load plain if necessary, i.e., if running under initex.
4 \expandafter\ifx\csname fmtname\endcsname\relax\input plain\fi
6 \def\texinfoversion{2003-02-03.16}
8 % Copyright (C) 1985, 1986, 1988, 1990, 1991, 1992, 1993, 1994, 1995,
9 % 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
11 % This texinfo.tex file is free software; you can redistribute it and/or
12 % modify it under the terms of the GNU General Public License as
13 % published by the Free Software Foundation; either version 2, or (at
14 % your option) any later version.
16 % This texinfo.tex file is distributed in the hope that it will be
17 % useful, but WITHOUT ANY WARRANTY; without even the implied warranty
18 % of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19 % General Public License for more details.
21 % You should have received a copy of the GNU General Public License
22 % along with this texinfo.tex file; see the file COPYING. If not, write
23 % to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
24 % Boston, MA 02111-1307, USA.
26 % In other words, you are welcome to use, share and improve this program.
27 % You are forbidden to forbid anyone else to use, share and improve
28 % what you give them. Help stamp out software-hoarding!
30 % Please try the latest version of texinfo.tex before submitting bug
31 % reports; you can get the latest version from:
32 % ftp://ftp.gnu.org/gnu/texinfo/texinfo.tex
33 % (and all GNU mirrors, see http://www.gnu.org/order/ftp.html)
34 % ftp://tug.org/tex/texinfo.tex
35 % (and all CTAN mirrors, see http://www.ctan.org),
36 % and /home/gd/gnu/doc/texinfo.tex on the GNU machines.
38 % The GNU Texinfo home page is http://www.gnu.org/software/texinfo.
40 % The texinfo.tex in any given Texinfo distribution could well be out
41 % of date, so if that's what you're using, please check.
43 % Send bug reports to bug-texinfo@gnu.org. Please include including a
44 % complete document in each bug report with which we can reproduce the
45 % problem. Patches are, of course, greatly appreciated.
47 % To process a Texinfo manual with TeX, it's most reliable to use the
48 % texi2dvi shell script that comes with the distribution. For a simple
49 % manual foo.texi, however, you can get away with this:
50 % tex foo.texi
51 % texindex foo.??
52 % tex foo.texi
53 % tex foo.texi
54 % dvips foo.dvi -o # or whatever; this makes foo.ps.
55 % The extra TeX runs get the cross-reference information correct.
56 % Sometimes one run after texindex suffices, and sometimes you need more
57 % than two; texi2dvi does it as many times as necessary.
59 % It is possible to adapt texinfo.tex for other languages, to some
60 % extent. You can get the existing language-specific files from the
61 % full Texinfo distribution.
63 \message{Loading texinfo [version \texinfoversion]:}
65 % If in a .fmt file, print the version number
66 % and turn on active characters that we couldn't do earlier because
67 % they might have appeared in the input file name.
68 \everyjob{\message{[Texinfo version \texinfoversion]}%
69 \catcode`+=\active \catcode`\_=\active}
71 \message{Basics,}
72 \chardef\other=12
74 % We never want plain's outer \+ definition in Texinfo.
75 % For @tex, we can use \tabalign.
76 \let\+ = \relax
78 % Save some parts of plain tex whose names we will redefine.
79 \let\ptexb=\b
80 \let\ptexbullet=\bullet
81 \let\ptexc=\c
82 \let\ptexcomma=\,
83 \let\ptexdot=\.
84 \let\ptexdots=\dots
85 \let\ptexend=\end
86 \let\ptexequiv=\equiv
87 \let\ptexexclam=\!
88 \let\ptexgtr=>
89 \let\ptexhat=^
90 \let\ptexi=\i
91 \let\ptexlbrace=\{
92 \let\ptexless=<
93 \let\ptexplus=+
94 \let\ptexrbrace=\}
95 \let\ptexstar=\*
96 \let\ptext=\t
98 % If this character appears in an error message or help string, it
99 % starts a new line in the output.
100 \newlinechar = `^^J
102 % Set up fixed words for English if not already set.
103 \ifx\putwordAppendix\undefined \gdef\putwordAppendix{Appendix}\fi
104 \ifx\putwordChapter\undefined \gdef\putwordChapter{Chapter}\fi
105 \ifx\putwordfile\undefined \gdef\putwordfile{file}\fi
106 \ifx\putwordin\undefined \gdef\putwordin{in}\fi
107 \ifx\putwordIndexIsEmpty\undefined \gdef\putwordIndexIsEmpty{(Index is empty)}\fi
108 \ifx\putwordIndexNonexistent\undefined \gdef\putwordIndexNonexistent{(Index is nonexistent)}\fi
109 \ifx\putwordInfo\undefined \gdef\putwordInfo{Info}\fi
110 \ifx\putwordInstanceVariableof\undefined \gdef\putwordInstanceVariableof{Instance Variable of}\fi
111 \ifx\putwordMethodon\undefined \gdef\putwordMethodon{Method on}\fi
112 \ifx\putwordNoTitle\undefined \gdef\putwordNoTitle{No Title}\fi
113 \ifx\putwordof\undefined \gdef\putwordof{of}\fi
114 \ifx\putwordon\undefined \gdef\putwordon{on}\fi
115 \ifx\putwordpage\undefined \gdef\putwordpage{page}\fi
116 \ifx\putwordsection\undefined \gdef\putwordsection{section}\fi
117 \ifx\putwordSection\undefined \gdef\putwordSection{Section}\fi
118 \ifx\putwordsee\undefined \gdef\putwordsee{see}\fi
119 \ifx\putwordSee\undefined \gdef\putwordSee{See}\fi
120 \ifx\putwordShortTOC\undefined \gdef\putwordShortTOC{Short Contents}\fi
121 \ifx\putwordTOC\undefined \gdef\putwordTOC{Table of Contents}\fi
123 \ifx\putwordMJan\undefined \gdef\putwordMJan{January}\fi
124 \ifx\putwordMFeb\undefined \gdef\putwordMFeb{February}\fi
125 \ifx\putwordMMar\undefined \gdef\putwordMMar{March}\fi
126 \ifx\putwordMApr\undefined \gdef\putwordMApr{April}\fi
127 \ifx\putwordMMay\undefined \gdef\putwordMMay{May}\fi
128 \ifx\putwordMJun\undefined \gdef\putwordMJun{June}\fi
129 \ifx\putwordMJul\undefined \gdef\putwordMJul{July}\fi
130 \ifx\putwordMAug\undefined \gdef\putwordMAug{August}\fi
131 \ifx\putwordMSep\undefined \gdef\putwordMSep{September}\fi
132 \ifx\putwordMOct\undefined \gdef\putwordMOct{October}\fi
133 \ifx\putwordMNov\undefined \gdef\putwordMNov{November}\fi
134 \ifx\putwordMDec\undefined \gdef\putwordMDec{December}\fi
136 \ifx\putwordDefmac\undefined \gdef\putwordDefmac{Macro}\fi
137 \ifx\putwordDefspec\undefined \gdef\putwordDefspec{Special Form}\fi
138 \ifx\putwordDefvar\undefined \gdef\putwordDefvar{Variable}\fi
139 \ifx\putwordDefopt\undefined \gdef\putwordDefopt{User Option}\fi
140 \ifx\putwordDeftypevar\undefined\gdef\putwordDeftypevar{Variable}\fi
141 \ifx\putwordDeffunc\undefined \gdef\putwordDeffunc{Function}\fi
142 \ifx\putwordDeftypefun\undefined\gdef\putwordDeftypefun{Function}\fi
144 % In some macros, we cannot use the `\? notation---the left quote is
145 % in some cases the escape char.
146 \chardef\colonChar = `\:
147 \chardef\commaChar = `\,
148 \chardef\dotChar = `\.
149 \chardef\equalChar = `\=
150 \chardef\exclamChar= `\!
151 \chardef\questChar = `\?
152 \chardef\semiChar = `\;
153 \chardef\spaceChar = `\ %
154 \chardef\underChar = `\_
156 % Ignore a token.
158 \def\gobble#1{}
160 % True if #1 is the empty string, i.e., called like `\ifempty{}'.
162 \def\ifempty#1{\ifemptyx #1\emptymarkA\emptymarkB}%
163 \def\ifemptyx#1#2\emptymarkB{\ifx #1\emptymarkA}%
165 % Hyphenation fixes.
166 \hyphenation{ap-pen-dix}
167 \hyphenation{mini-buf-fer mini-buf-fers}
168 \hyphenation{eshell}
169 \hyphenation{white-space}
171 % Margin to add to right of even pages, to left of odd pages.
172 \newdimen\bindingoffset
173 \newdimen\normaloffset
174 \newdimen\pagewidth \newdimen\pageheight
176 % Sometimes it is convenient to have everything in the transcript file
177 % and nothing on the terminal. We don't just call \tracingall here,
178 % since that produces some useless output on the terminal. We also make
179 % some effort to order the tracing commands to reduce output in the log
180 % file; cf. trace.sty in LaTeX.
182 \def\gloggingall{\begingroup \globaldefs = 1 \loggingall \endgroup}%
183 \def\loggingall{%
184 \tracingstats2
185 \tracingpages1
186 \tracinglostchars2 % 2 gives us more in etex
187 \tracingparagraphs1
188 \tracingoutput1
189 \tracingmacros2
190 \tracingrestores1
191 \showboxbreadth\maxdimen \showboxdepth\maxdimen
192 \ifx\eTeXversion\undefined\else % etex gives us more logging
193 \tracingscantokens1
194 \tracingifs1
195 \tracinggroups1
196 \tracingnesting2
197 \tracingassigns1
199 \tracingcommands3 % 3 gives us more in etex
200 \errorcontextlines\maxdimen
203 % add check for \lastpenalty to plain's definitions. If the last thing
204 % we did was a \nobreak, we don't want to insert more space.
206 \def\smallbreak{\ifnum\lastpenalty<10000\par\ifdim\lastskip<\smallskipamount
207 \removelastskip\penalty-50\smallskip\fi\fi}
208 \def\medbreak{\ifnum\lastpenalty<10000\par\ifdim\lastskip<\medskipamount
209 \removelastskip\penalty-100\medskip\fi\fi}
210 \def\bigbreak{\ifnum\lastpenalty<10000\par\ifdim\lastskip<\bigskipamount
211 \removelastskip\penalty-200\bigskip\fi\fi}
213 % For @cropmarks command.
214 % Do @cropmarks to get crop marks.
216 \newif\ifcropmarks
217 \let\cropmarks = \cropmarkstrue
219 % Dimensions to add cropmarks at corners.
220 % Added by P. A. MacKay, 12 Nov. 1986
222 \newdimen\outerhsize \newdimen\outervsize % set by the paper size routines
223 \newdimen\cornerlong \cornerlong=1pc
224 \newdimen\cornerthick \cornerthick=.3pt
225 \newdimen\topandbottommargin \topandbottommargin=.75in
227 % Main output routine.
228 \chardef\PAGE = 255
229 \output = {\onepageout{\pagecontents\PAGE}}
231 \newbox\headlinebox
232 \newbox\footlinebox
234 % \onepageout takes a vbox as an argument. Note that \pagecontents
235 % does insertions, but you have to call it yourself.
236 \def\onepageout#1{%
237 \ifcropmarks \hoffset=0pt \else \hoffset=\normaloffset \fi
239 \ifodd\pageno \advance\hoffset by \bindingoffset
240 \else \advance\hoffset by -\bindingoffset\fi
242 % Do this outside of the \shipout so @code etc. will be expanded in
243 % the headline as they should be, not taken literally (outputting ''code).
244 \setbox\headlinebox = \vbox{\let\hsize=\pagewidth \makeheadline}%
245 \setbox\footlinebox = \vbox{\let\hsize=\pagewidth \makefootline}%
248 % Have to do this stuff outside the \shipout because we want it to
249 % take effect in \write's, yet the group defined by the \vbox ends
250 % before the \shipout runs.
252 \escapechar = `\\ % use backslash in output files.
253 \indexdummies % don't expand commands in the output.
254 \normalturnoffactive % \ in index entries must not stay \, e.g., if
255 % the page break happens to be in the middle of an example.
256 \shipout\vbox{%
257 % Do this early so pdf references go to the beginning of the page.
258 \ifpdfmakepagedest \pdfmkdest{\the\pageno} \fi
260 \ifcropmarks \vbox to \outervsize\bgroup
261 \hsize = \outerhsize
262 \vskip-\topandbottommargin
263 \vtop to0pt{%
264 \line{\ewtop\hfil\ewtop}%
265 \nointerlineskip
266 \line{%
267 \vbox{\moveleft\cornerthick\nstop}%
268 \hfill
269 \vbox{\moveright\cornerthick\nstop}%
271 \vss}%
272 \vskip\topandbottommargin
273 \line\bgroup
274 \hfil % center the page within the outer (page) hsize.
275 \ifodd\pageno\hskip\bindingoffset\fi
276 \vbox\bgroup
279 \unvbox\headlinebox
280 \pagebody{#1}%
281 \ifdim\ht\footlinebox > 0pt
282 % Only leave this space if the footline is nonempty.
283 % (We lessened \vsize for it in \oddfootingxxx.)
284 % The \baselineskip=24pt in plain's \makefootline has no effect.
285 \vskip 2\baselineskip
286 \unvbox\footlinebox
289 \ifcropmarks
290 \egroup % end of \vbox\bgroup
291 \hfil\egroup % end of (centering) \line\bgroup
292 \vskip\topandbottommargin plus1fill minus1fill
293 \boxmaxdepth = \cornerthick
294 \vbox to0pt{\vss
295 \line{%
296 \vbox{\moveleft\cornerthick\nsbot}%
297 \hfill
298 \vbox{\moveright\cornerthick\nsbot}%
300 \nointerlineskip
301 \line{\ewbot\hfil\ewbot}%
303 \egroup % \vbox from first cropmarks clause
305 }% end of \shipout\vbox
306 }% end of group with \normalturnoffactive
307 \advancepageno
308 \ifnum\outputpenalty>-20000 \else\dosupereject\fi
311 \newinsert\margin \dimen\margin=\maxdimen
313 \def\pagebody#1{\vbox to\pageheight{\boxmaxdepth=\maxdepth #1}}
314 {\catcode`\@ =11
315 \gdef\pagecontents#1{\ifvoid\topins\else\unvbox\topins\fi
316 % marginal hacks, juha@viisa.uucp (Juha Takala)
317 \ifvoid\margin\else % marginal info is present
318 \rlap{\kern\hsize\vbox to\z@{\kern1pt\box\margin \vss}}\fi
319 \dimen@=\dp#1 \unvbox#1
320 \ifvoid\footins\else\vskip\skip\footins\footnoterule \unvbox\footins\fi
321 \ifr@ggedbottom \kern-\dimen@ \vfil \fi}
324 % Here are the rules for the cropmarks. Note that they are
325 % offset so that the space between them is truly \outerhsize or \outervsize
326 % (P. A. MacKay, 12 November, 1986)
328 \def\ewtop{\vrule height\cornerthick depth0pt width\cornerlong}
329 \def\nstop{\vbox
330 {\hrule height\cornerthick depth\cornerlong width\cornerthick}}
331 \def\ewbot{\vrule height0pt depth\cornerthick width\cornerlong}
332 \def\nsbot{\vbox
333 {\hrule height\cornerlong depth\cornerthick width\cornerthick}}
335 % Parse an argument, then pass it to #1. The argument is the rest of
336 % the input line (except we remove a trailing comment). #1 should be a
337 % macro which expects an ordinary undelimited TeX argument.
339 \def\parsearg#1{%
340 \let\next = #1%
341 \begingroup
342 \obeylines
343 \futurelet\temp\parseargx
346 % If the next token is an obeyed space (from an @example environment or
347 % the like), remove it and recurse. Otherwise, we're done.
348 \def\parseargx{%
349 % \obeyedspace is defined far below, after the definition of \sepspaces.
350 \ifx\obeyedspace\temp
351 \expandafter\parseargdiscardspace
352 \else
353 \expandafter\parseargline
357 % Remove a single space (as the delimiter token to the macro call).
358 {\obeyspaces %
359 \gdef\parseargdiscardspace {\futurelet\temp\parseargx}}
361 {\obeylines %
362 \gdef\parseargline#1^^M{%
363 \endgroup % End of the group started in \parsearg.
365 % First remove any @c comment, then any @comment.
366 % Result of each macro is put in \toks0.
367 \argremovec #1\c\relax %
368 \expandafter\argremovecomment \the\toks0 \comment\relax %
370 % Call the caller's macro, saved as \next in \parsearg.
371 \expandafter\next\expandafter{\the\toks0}%
375 % Since all \c{,omment} does is throw away the argument, we can let TeX
376 % do that for us. The \relax here is matched by the \relax in the call
377 % in \parseargline; it could be more or less anything, its purpose is
378 % just to delimit the argument to the \c.
379 \def\argremovec#1\c#2\relax{\toks0 = {#1}}
380 \def\argremovecomment#1\comment#2\relax{\toks0 = {#1}}
382 % \argremovec{,omment} might leave us with trailing spaces, though; e.g.,
383 % @end itemize @c foo
384 % will have two active spaces as part of the argument with the
385 % `itemize'. Here we remove all active spaces from #1, and assign the
386 % result to \toks0.
388 % This loses if there are any *other* active characters besides spaces
389 % in the argument -- _ ^ +, for example -- since they get expanded.
390 % Fortunately, Texinfo does not define any such commands. (If it ever
391 % does, the catcode of the characters in questionwill have to be changed
392 % here.) But this means we cannot call \removeactivespaces as part of
393 % \argremovec{,omment}, since @c uses \parsearg, and thus the argument
394 % that \parsearg gets might well have any character at all in it.
396 \def\removeactivespaces#1{%
397 \begingroup
398 \ignoreactivespaces
399 \edef\temp{#1}%
400 \global\toks0 = \expandafter{\temp}%
401 \endgroup
404 % Change the active space to expand to nothing.
406 \begingroup
407 \obeyspaces
408 \gdef\ignoreactivespaces{\obeyspaces\let =\empty}
409 \endgroup
412 \def\flushcr{\ifx\par\lisppar \def\next##1{}\else \let\next=\relax \fi \next}
414 %% These are used to keep @begin/@end levels from running away
415 %% Call \inENV within environments (after a \begingroup)
416 \newif\ifENV \ENVfalse \def\inENV{\ifENV\relax\else\ENVtrue\fi}
417 \def\ENVcheck{%
418 \ifENV\errmessage{Still within an environment; press RETURN to continue}
419 \endgroup\fi} % This is not perfect, but it should reduce lossage
421 % @begin foo is the same as @foo, for now.
422 \newhelp\EMsimple{Press RETURN to continue.}
424 \outer\def\begin{\parsearg\beginxxx}
426 \def\beginxxx #1{%
427 \expandafter\ifx\csname #1\endcsname\relax
428 {\errhelp=\EMsimple \errmessage{Undefined command @begin #1}}\else
429 \csname #1\endcsname\fi}
431 % @end foo executes the definition of \Efoo.
433 \def\end{\parsearg\endxxx}
434 \def\endxxx #1{%
435 \removeactivespaces{#1}%
436 \edef\endthing{\the\toks0}%
438 \expandafter\ifx\csname E\endthing\endcsname\relax
439 \expandafter\ifx\csname \endthing\endcsname\relax
440 % There's no \foo, i.e., no ``environment'' foo.
441 \errhelp = \EMsimple
442 \errmessage{Undefined command `@end \endthing'}%
443 \else
444 \unmatchedenderror\endthing
446 \else
447 % Everything's ok; the right environment has been started.
448 \csname E\endthing\endcsname
452 % There is an environment #1, but it hasn't been started. Give an error.
454 \def\unmatchedenderror#1{%
455 \errhelp = \EMsimple
456 \errmessage{This `@end #1' doesn't have a matching `@#1'}%
459 % Define the control sequence \E#1 to give an unmatched @end error.
461 \def\defineunmatchedend#1{%
462 \expandafter\def\csname E#1\endcsname{\unmatchedenderror{#1}}%
466 %% Simple single-character @ commands
468 % @@ prints an @
469 % Kludge this until the fonts are right (grr).
470 \def\@{{\tt\char64}}
472 % This is turned off because it was never documented
473 % and you can use @w{...} around a quote to suppress ligatures.
474 %% Define @` and @' to be the same as ` and '
475 %% but suppressing ligatures.
476 %\def\`{{`}}
477 %\def\'{{'}}
479 % Used to generate quoted braces.
480 \def\mylbrace {{\tt\char123}}
481 \def\myrbrace {{\tt\char125}}
482 \let\{=\mylbrace
483 \let\}=\myrbrace
484 \begingroup
485 % Definitions to produce \{ and \} commands for indices,
486 % and @{ and @} for the aux file.
487 \catcode`\{ = \other \catcode`\} = \other
488 \catcode`\[ = 1 \catcode`\] = 2
489 \catcode`\! = 0 \catcode`\\ = \other
490 !gdef!lbracecmd[\{]%
491 !gdef!rbracecmd[\}]%
492 !gdef!lbraceatcmd[@{]%
493 !gdef!rbraceatcmd[@}]%
494 !endgroup
496 % Accents: @, @dotaccent @ringaccent @ubaraccent @udotaccent
497 % Others are defined by plain TeX: @` @' @" @^ @~ @= @u @v @H.
498 \let\, = \c
499 \let\dotaccent = \.
500 \def\ringaccent#1{{\accent23 #1}}
501 \let\tieaccent = \t
502 \let\ubaraccent = \b
503 \let\udotaccent = \d
505 % Other special characters: @questiondown @exclamdown
506 % Plain TeX defines: @AA @AE @O @OE @L (plus lowercase versions) @ss.
507 \def\questiondown{?`}
508 \def\exclamdown{!`}
510 % Dotless i and dotless j, used for accents.
511 \def\imacro{i}
512 \def\jmacro{j}
513 \def\dotless#1{%
514 \def\temp{#1}%
515 \ifx\temp\imacro \ptexi
516 \else\ifx\temp\jmacro \j
517 \else \errmessage{@dotless can be used only with i or j}%
518 \fi\fi
521 % Be sure we're in horizontal mode when doing a tie, since we make space
522 % equivalent to this in @example-like environments. Otherwise, a space
523 % at the beginning of a line will start with \penalty -- and
524 % since \penalty is valid in vertical mode, we'd end up putting the
525 % penalty on the vertical list instead of in the new paragraph.
526 {\catcode`@ = 11
527 % Avoid using \@M directly, because that causes trouble
528 % if the definition is written into an index file.
529 \global\let\tiepenalty = \@M
530 \gdef\tie{\leavevmode\penalty\tiepenalty\ }
533 % @: forces normal size whitespace following.
534 \def\:{\spacefactor=1000 }
536 % @* forces a line break.
537 \def\*{\hfil\break\hbox{}\ignorespaces}
539 % @. is an end-of-sentence period.
540 \def\.{.\spacefactor=3000 }
542 % @! is an end-of-sentence bang.
543 \def\!{!\spacefactor=3000 }
545 % @? is an end-of-sentence query.
546 \def\?{?\spacefactor=3000 }
548 % @w prevents a word break. Without the \leavevmode, @w at the
549 % beginning of a paragraph, when TeX is still in vertical mode, would
550 % produce a whole line of output instead of starting the paragraph.
551 \def\w#1{\leavevmode\hbox{#1}}
553 % @group ... @end group forces ... to be all on one page, by enclosing
554 % it in a TeX vbox. We use \vtop instead of \vbox to construct the box
555 % to keep its height that of a normal line. According to the rules for
556 % \topskip (p.114 of the TeXbook), the glue inserted is
557 % max (\topskip - \ht (first item), 0). If that height is large,
558 % therefore, no glue is inserted, and the space between the headline and
559 % the text is small, which looks bad.
561 % Another complication is that the group might be very large. This can
562 % cause the glue on the previous page to be unduly stretched, because it
563 % does not have much material. In this case, it's better to add an
564 % explicit \vfill so that the extra space is at the bottom. The
565 % threshold for doing this is if the group is more than \vfilllimit
566 % percent of a page (\vfilllimit can be changed inside of @tex).
568 \newbox\groupbox
569 \def\vfilllimit{0.7}
571 \def\group{\begingroup
572 \ifnum\catcode13=\active \else
573 \errhelp = \groupinvalidhelp
574 \errmessage{@group invalid in context where filling is enabled}%
577 % The \vtop we start below produces a box with normal height and large
578 % depth; thus, TeX puts \baselineskip glue before it, and (when the
579 % next line of text is done) \lineskip glue after it. (See p.82 of
580 % the TeXbook.) Thus, space below is not quite equal to space
581 % above. But it's pretty close.
582 \def\Egroup{%
583 \egroup % End the \vtop.
584 % \dimen0 is the vertical size of the group's box.
585 \dimen0 = \ht\groupbox \advance\dimen0 by \dp\groupbox
586 % \dimen2 is how much space is left on the page (more or less).
587 \dimen2 = \pageheight \advance\dimen2 by -\pagetotal
588 % if the group doesn't fit on the current page, and it's a big big
589 % group, force a page break.
590 \ifdim \dimen0 > \dimen2
591 \ifdim \pagetotal < \vfilllimit\pageheight
592 \page
595 \copy\groupbox
596 \endgroup % End the \group.
599 \setbox\groupbox = \vtop\bgroup
600 % We have to put a strut on the last line in case the @group is in
601 % the midst of an example, rather than completely enclosing it.
602 % Otherwise, the interline space between the last line of the group
603 % and the first line afterwards is too small. But we can't put the
604 % strut in \Egroup, since there it would be on a line by itself.
605 % Hence this just inserts a strut at the beginning of each line.
606 \everypar = {\strut}%
608 % Since we have a strut on every line, we don't need any of TeX's
609 % normal interline spacing.
610 \offinterlineskip
612 % OK, but now we have to do something about blank
613 % lines in the input in @example-like environments, which normally
614 % just turn into \lisppar, which will insert no space now that we've
615 % turned off the interline space. Simplest is to make them be an
616 % empty paragraph.
617 \ifx\par\lisppar
618 \edef\par{\leavevmode \par}%
620 % Reset ^^M's definition to new definition of \par.
621 \obeylines
624 % Do @comment since we are called inside an environment such as
625 % @example, where each end-of-line in the input causes an
626 % end-of-line in the output. We don't want the end-of-line after
627 % the `@group' to put extra space in the output. Since @group
628 % should appear on a line by itself (according to the Texinfo
629 % manual), we don't worry about eating any user text.
630 \comment
633 % TeX puts in an \escapechar (i.e., `@') at the beginning of the help
634 % message, so this ends up printing `@group can only ...'.
636 \newhelp\groupinvalidhelp{%
637 group can only be used in environments such as @example,^^J%
638 where each line of input produces a line of output.}
640 % @need space-in-mils
641 % forces a page break if there is not space-in-mils remaining.
643 \newdimen\mil \mil=0.001in
645 \def\need{\parsearg\needx}
647 % Old definition--didn't work.
648 %\def\needx #1{\par %
649 %% This method tries to make TeX break the page naturally
650 %% if the depth of the box does not fit.
651 %{\baselineskip=0pt%
652 %\vtop to #1\mil{\vfil}\kern -#1\mil\nobreak
653 %\prevdepth=-1000pt
656 \def\needx#1{%
657 % Ensure vertical mode, so we don't make a big box in the middle of a
658 % paragraph.
659 \par
661 % If the @need value is less than one line space, it's useless.
662 \dimen0 = #1\mil
663 \dimen2 = \ht\strutbox
664 \advance\dimen2 by \dp\strutbox
665 \ifdim\dimen0 > \dimen2
667 % Do a \strut just to make the height of this box be normal, so the
668 % normal leading is inserted relative to the preceding line.
669 % And a page break here is fine.
670 \vtop to #1\mil{\strut\vfil}%
672 % TeX does not even consider page breaks if a penalty added to the
673 % main vertical list is 10000 or more. But in order to see if the
674 % empty box we just added fits on the page, we must make it consider
675 % page breaks. On the other hand, we don't want to actually break the
676 % page after the empty box. So we use a penalty of 9999.
678 % There is an extremely small chance that TeX will actually break the
679 % page at this \penalty, if there are no other feasible breakpoints in
680 % sight. (If the user is using lots of big @group commands, which
681 % almost-but-not-quite fill up a page, TeX will have a hard time doing
682 % good page breaking, for example.) However, I could not construct an
683 % example where a page broke at this \penalty; if it happens in a real
684 % document, then we can reconsider our strategy.
685 \penalty9999
687 % Back up by the size of the box, whether we did a page break or not.
688 \kern -#1\mil
690 % Do not allow a page break right after this kern.
691 \nobreak
695 % @br forces paragraph break
697 \let\br = \par
699 % @dots{} output an ellipsis using the current font.
700 % We do .5em per period so that it has the same spacing in a typewriter
701 % font as three actual period characters.
703 \def\dots{%
704 \leavevmode
705 \hbox to 1.5em{%
706 \hskip 0pt plus 0.25fil minus 0.25fil
707 .\hss.\hss.%
708 \hskip 0pt plus 0.5fil minus 0.5fil
712 % @enddots{} is an end-of-sentence ellipsis.
714 \def\enddots{%
715 \leavevmode
716 \hbox to 2em{%
717 \hskip 0pt plus 0.25fil minus 0.25fil
718 .\hss.\hss.\hss.%
719 \hskip 0pt plus 0.5fil minus 0.5fil
721 \spacefactor=3000
725 % @page forces the start of a new page
727 \def\page{\par\vfill\supereject}
729 % @exdent text....
730 % outputs text on separate line in roman font, starting at standard page margin
732 % This records the amount of indent in the innermost environment.
733 % That's how much \exdent should take out.
734 \newskip\exdentamount
736 % This defn is used inside fill environments such as @defun.
737 \def\exdent{\parsearg\exdentyyy}
738 \def\exdentyyy #1{{\hfil\break\hbox{\kern -\exdentamount{\rm#1}}\hfil\break}}
740 % This defn is used inside nofill environments such as @example.
741 \def\nofillexdent{\parsearg\nofillexdentyyy}
742 \def\nofillexdentyyy #1{{\advance \leftskip by -\exdentamount
743 \leftline{\hskip\leftskip{\rm#1}}}}
745 % @inmargin{WHICH}{TEXT} puts TEXT in the WHICH margin next to the current
746 % paragraph. For more general purposes, use the \margin insertion
747 % class. WHICH is `l' or `r'.
749 \newskip\inmarginspacing \inmarginspacing=1cm
750 \def\strutdepth{\dp\strutbox}
752 \def\doinmargin#1#2{\strut\vadjust{%
753 \nobreak
754 \kern-\strutdepth
755 \vtop to \strutdepth{%
756 \baselineskip=\strutdepth
757 \vss
758 % if you have multiple lines of stuff to put here, you'll need to
759 % make the vbox yourself of the appropriate size.
760 \ifx#1l%
761 \llap{\ignorespaces #2\hskip\inmarginspacing}%
762 \else
763 \rlap{\hskip\hsize \hskip\inmarginspacing \ignorespaces #2}%
765 \null
768 \def\inleftmargin{\doinmargin l}
769 \def\inrightmargin{\doinmargin r}
771 % @inmargin{TEXT [, RIGHT-TEXT]}
772 % (if RIGHT-TEXT is given, use TEXT for left page, RIGHT-TEXT for right;
773 % else use TEXT for both).
775 \def\inmargin#1{\parseinmargin #1,,\finish}
776 \def\parseinmargin#1,#2,#3\finish{% not perfect, but better than nothing.
777 \setbox0 = \hbox{\ignorespaces #2}%
778 \ifdim\wd0 > 0pt
779 \def\lefttext{#1}% have both texts
780 \def\righttext{#2}%
781 \else
782 \def\lefttext{#1}% have only one text
783 \def\righttext{#1}%
786 \ifodd\pageno
787 \def\temp{\inrightmargin\righttext}% odd page -> outside is right margin
788 \else
789 \def\temp{\inleftmargin\lefttext}%
791 \temp
794 % @include file insert text of that file as input.
795 % Allow normal characters that we make active in the argument (a file name).
796 \def\include{\begingroup
797 \catcode`\\=\other
798 \catcode`~=\other
799 \catcode`^=\other
800 \catcode`_=\other
801 \catcode`|=\other
802 \catcode`<=\other
803 \catcode`>=\other
804 \catcode`+=\other
805 \parsearg\includezzz}
806 % Restore active chars for included file.
807 \def\includezzz#1{\endgroup\begingroup
808 % Read the included file in a group so nested @include's work.
809 \def\thisfile{#1}%
810 \let\value=\expandablevalue
811 \input\thisfile
812 \endgroup}
814 \def\thisfile{}
816 % @center line
817 % outputs that line, centered.
819 \def\center{\parsearg\docenter}
820 \def\docenter#1{{%
821 \ifhmode \hfil\break \fi
822 \advance\hsize by -\leftskip
823 \advance\hsize by -\rightskip
824 \line{\hfil \ignorespaces#1\unskip \hfil}%
825 \ifhmode \break \fi
828 % @sp n outputs n lines of vertical space
830 \def\sp{\parsearg\spxxx}
831 \def\spxxx #1{\vskip #1\baselineskip}
833 % @comment ...line which is ignored...
834 % @c is the same as @comment
835 % @ignore ... @end ignore is another way to write a comment
837 \def\comment{\begingroup \catcode`\^^M=\other%
838 \catcode`\@=\other \catcode`\{=\other \catcode`\}=\other%
839 \commentxxx}
840 {\catcode`\^^M=\other \gdef\commentxxx#1^^M{\endgroup}}
842 \let\c=\comment
844 % @paragraphindent NCHARS
845 % We'll use ems for NCHARS, close enough.
846 % We cannot implement @paragraphindent asis, though.
848 \def\asisword{asis} % no translation, these are keywords
849 \def\noneword{none}
851 \def\paragraphindent{\parsearg\doparagraphindent}
852 \def\doparagraphindent#1{%
853 \def\temp{#1}%
854 \ifx\temp\asisword
855 \else
856 \ifx\temp\noneword
857 \defaultparindent = 0pt
858 \else
859 \defaultparindent = #1em
862 \parindent = \defaultparindent
865 % @exampleindent NCHARS
866 % We'll use ems for NCHARS like @paragraphindent.
867 % It seems @exampleindent asis isn't necessary, but
868 % I preserve it to make it similar to @paragraphindent.
869 \def\exampleindent{\parsearg\doexampleindent}
870 \def\doexampleindent#1{%
871 \def\temp{#1}%
872 \ifx\temp\asisword
873 \else
874 \ifx\temp\noneword
875 \lispnarrowing = 0pt
876 \else
877 \lispnarrowing = #1em
882 % @asis just yields its argument. Used with @table, for example.
884 \def\asis#1{#1}
886 % @math outputs its argument in math mode.
887 % We don't use $'s directly in the definition of \math because we need
888 % to set catcodes according to plain TeX first, to allow for subscripts,
889 % superscripts, special math chars, etc.
891 \let\implicitmath = $%$ font-lock fix
893 % One complication: _ usually means subscripts, but it could also mean
894 % an actual _ character, as in @math{@var{some_variable} + 1}. So make
895 % _ within @math be active (mathcode "8000), and distinguish by seeing
896 % if the current family is \slfam, which is what @var uses.
898 {\catcode\underChar = \active
899 \gdef\mathunderscore{%
900 \catcode\underChar=\active
901 \def_{\ifnum\fam=\slfam \_\else\sb\fi}%
904 % Another complication: we want \\ (and @\) to output a \ character.
905 % FYI, plain.tex uses \\ as a temporary control sequence (why?), but
906 % this is not advertised and we don't care. Texinfo does not
907 % otherwise define @\.
909 % The \mathchar is class=0=ordinary, family=7=ttfam, position=5C=\.
910 \def\mathbackslash{\ifnum\fam=\ttfam \mathchar"075C \else\backslash \fi}
912 \def\math{%
913 \tex
914 \mathcode`\_="8000 \mathunderscore
915 \let\\ = \mathbackslash
916 \mathactive
917 \implicitmath\finishmath}
918 \def\finishmath#1{#1\implicitmath\Etex}
920 % Some active characters (such as <) are spaced differently in math.
921 % We have to reset their definitions in case the @math was an
922 % argument to a command which set the catcodes (such as @item or @section).
925 \catcode`^ = \active
926 \catcode`< = \active
927 \catcode`> = \active
928 \catcode`+ = \active
929 \gdef\mathactive{%
930 \let^ = \ptexhat
931 \let< = \ptexless
932 \let> = \ptexgtr
933 \let+ = \ptexplus
937 % @bullet and @minus need the same treatment as @math, just above.
938 \def\bullet{\implicitmath\ptexbullet\implicitmath}
939 \def\minus{\implicitmath-\implicitmath}
941 % @refill is a no-op.
942 \let\refill=\relax
944 % If working on a large document in chapters, it is convenient to
945 % be able to disable indexing, cross-referencing, and contents, for test runs.
946 % This is done with @novalidate (before @setfilename).
948 \newif\iflinks \linkstrue % by default we want the aux files.
949 \let\novalidate = \linksfalse
951 % @setfilename is done at the beginning of every texinfo file.
952 % So open here the files we need to have open while reading the input.
953 % This makes it possible to make a .fmt file for texinfo.
954 \def\setfilename{%
955 \iflinks
956 \readauxfile
957 \fi % \openindices needs to do some work in any case.
958 \openindices
959 \fixbackslash % Turn off hack to swallow `\input texinfo'.
960 \global\let\setfilename=\comment % Ignore extra @setfilename cmds.
962 % If texinfo.cnf is present on the system, read it.
963 % Useful for site-wide @afourpaper, etc.
964 % Just to be on the safe side, close the input stream before the \input.
965 \openin 1 texinfo.cnf
966 \ifeof1 \let\temp=\relax \else \def\temp{\input texinfo.cnf }\fi
967 \closein1
968 \temp
970 \comment % Ignore the actual filename.
973 % Called from \setfilename.
975 \def\openindices{%
976 \newindex{cp}%
977 \newcodeindex{fn}%
978 \newcodeindex{vr}%
979 \newcodeindex{tp}%
980 \newcodeindex{ky}%
981 \newcodeindex{pg}%
984 % @bye.
985 \outer\def\bye{\pagealignmacro\tracingstats=1\ptexend}
988 \message{pdf,}
989 % adobe `portable' document format
990 \newcount\tempnum
991 \newcount\lnkcount
992 \newtoks\filename
993 \newcount\filenamelength
994 \newcount\pgn
995 \newtoks\toksA
996 \newtoks\toksB
997 \newtoks\toksC
998 \newtoks\toksD
999 \newbox\boxA
1000 \newcount\countA
1001 \newif\ifpdf
1002 \newif\ifpdfmakepagedest
1004 \ifx\pdfoutput\undefined
1005 \pdffalse
1006 \let\pdfmkdest = \gobble
1007 \let\pdfurl = \gobble
1008 \let\endlink = \relax
1009 \let\linkcolor = \relax
1010 \let\pdfmakeoutlines = \relax
1011 \else
1012 \pdftrue
1013 \pdfoutput = 1
1014 \input pdfcolor
1015 \def\dopdfimage#1#2#3{%
1016 \def\imagewidth{#2}%
1017 \def\imageheight{#3}%
1018 % without \immediate, pdftex seg faults when the same image is
1019 % included twice. (Version 3.14159-pre-1.0-unofficial-20010704.)
1020 \ifnum\pdftexversion < 14
1021 \immediate\pdfimage
1022 \else
1023 \immediate\pdfximage
1025 \ifx\empty\imagewidth\else width \imagewidth \fi
1026 \ifx\empty\imageheight\else height \imageheight \fi
1027 \ifnum\pdftexversion<13
1028 #1.pdf%
1029 \else
1030 {#1.pdf}%
1032 \ifnum\pdftexversion < 14 \else
1033 \pdfrefximage \pdflastximage
1034 \fi}
1035 \def\pdfmkdest#1{{\normalturnoffactive \pdfdest name{#1} xyz}}
1036 \def\pdfmkpgn#1{#1}
1037 \let\linkcolor = \Blue % was Cyan, but that seems light?
1038 \def\endlink{\Black\pdfendlink}
1039 % Adding outlines to PDF; macros for calculating structure of outlines
1040 % come from Petr Olsak
1041 \def\expnumber#1{\expandafter\ifx\csname#1\endcsname\relax 0%
1042 \else \csname#1\endcsname \fi}
1043 \def\advancenumber#1{\tempnum=\expnumber{#1}\relax
1044 \advance\tempnum by1
1045 \expandafter\xdef\csname#1\endcsname{\the\tempnum}}
1046 \def\pdfmakeoutlines{{%
1047 \openin 1 \jobname.toc
1048 \ifeof 1\else\begingroup
1049 \closein 1
1050 % Thanh's hack / proper braces in bookmarks
1051 \edef\mylbrace{\iftrue \string{\else}\fi}\let\{=\mylbrace
1052 \edef\myrbrace{\iffalse{\else\string}\fi}\let\}=\myrbrace
1054 \def\chapentry ##1##2##3{}
1055 \def\secentry ##1##2##3##4{\advancenumber{chap##2}}
1056 \def\subsecentry ##1##2##3##4##5{\advancenumber{sec##2.##3}}
1057 \def\subsubsecentry ##1##2##3##4##5##6{\advancenumber{subsec##2.##3.##4}}
1058 \let\appendixentry = \chapentry
1059 \let\unnumbchapentry = \chapentry
1060 \let\unnumbsecentry = \secentry
1061 \let\unnumbsubsecentry = \subsecentry
1062 \let\unnumbsubsubsecentry = \subsubsecentry
1063 \input \jobname.toc
1064 \def\chapentry ##1##2##3{%
1065 \pdfoutline goto name{\pdfmkpgn{##3}}count-\expnumber{chap##2}{##1}}
1066 \def\secentry ##1##2##3##4{%
1067 \pdfoutline goto name{\pdfmkpgn{##4}}count-\expnumber{sec##2.##3}{##1}}
1068 \def\subsecentry ##1##2##3##4##5{%
1069 \pdfoutline goto name{\pdfmkpgn{##5}}count-\expnumber{subsec##2.##3.##4}{##1}}
1070 \def\subsubsecentry ##1##2##3##4##5##6{%
1071 \pdfoutline goto name{\pdfmkpgn{##6}}{##1}}
1072 \let\appendixentry = \chapentry
1073 \let\unnumbchapentry = \chapentry
1074 \let\unnumbsecentry = \secentry
1075 \let\unnumbsubsecentry = \subsecentry
1076 \let\unnumbsubsubsecentry = \subsubsecentry
1078 % Make special characters normal for writing to the pdf file.
1080 \indexnofonts
1081 \let\tt=\relax
1082 \turnoffactive
1083 \input \jobname.toc
1084 \endgroup\fi
1086 \def\makelinks #1,{%
1087 \def\params{#1}\def\E{END}%
1088 \ifx\params\E
1089 \let\nextmakelinks=\relax
1090 \else
1091 \let\nextmakelinks=\makelinks
1092 \ifnum\lnkcount>0,\fi
1093 \picknum{#1}%
1094 \startlink attr{/Border [0 0 0]}
1095 goto name{\pdfmkpgn{\the\pgn}}%
1096 \linkcolor #1%
1097 \advance\lnkcount by 1%
1098 \endlink
1100 \nextmakelinks
1102 \def\picknum#1{\expandafter\pn#1}
1103 \def\pn#1{%
1104 \def\p{#1}%
1105 \ifx\p\lbrace
1106 \let\nextpn=\ppn
1107 \else
1108 \let\nextpn=\ppnn
1109 \def\first{#1}
1111 \nextpn
1113 \def\ppn#1{\pgn=#1\gobble}
1114 \def\ppnn{\pgn=\first}
1115 \def\pdfmklnk#1{\lnkcount=0\makelinks #1,END,}
1116 \def\addtokens#1#2{\edef\addtoks{\noexpand#1={\the#1#2}}\addtoks}
1117 \def\skipspaces#1{\def\PP{#1}\def\D{|}%
1118 \ifx\PP\D\let\nextsp\relax
1119 \else\let\nextsp\skipspaces
1120 \ifx\p\space\else\addtokens{\filename}{\PP}%
1121 \advance\filenamelength by 1
1124 \nextsp}
1125 \def\getfilename#1{\filenamelength=0\expandafter\skipspaces#1|\relax}
1126 \ifnum\pdftexversion < 14
1127 \let \startlink \pdfannotlink
1128 \else
1129 \let \startlink \pdfstartlink
1131 \def\pdfurl#1{%
1132 \begingroup
1133 \normalturnoffactive\def\@{@}%
1134 \let\value=\expandablevalue
1135 \leavevmode\Red
1136 \startlink attr{/Border [0 0 0]}%
1137 user{/Subtype /Link /A << /S /URI /URI (#1) >>}%
1138 % #1
1139 \endgroup}
1140 \def\pdfgettoks#1.{\setbox\boxA=\hbox{\toksA={#1.}\toksB={}\maketoks}}
1141 \def\addtokens#1#2{\edef\addtoks{\noexpand#1={\the#1#2}}\addtoks}
1142 \def\adn#1{\addtokens{\toksC}{#1}\global\countA=1\let\next=\maketoks}
1143 \def\poptoks#1#2|ENDTOKS|{\let\first=#1\toksD={#1}\toksA={#2}}
1144 \def\maketoks{%
1145 \expandafter\poptoks\the\toksA|ENDTOKS|
1146 \ifx\first0\adn0
1147 \else\ifx\first1\adn1 \else\ifx\first2\adn2 \else\ifx\first3\adn3
1148 \else\ifx\first4\adn4 \else\ifx\first5\adn5 \else\ifx\first6\adn6
1149 \else\ifx\first7\adn7 \else\ifx\first8\adn8 \else\ifx\first9\adn9
1150 \else
1151 \ifnum0=\countA\else\makelink\fi
1152 \ifx\first.\let\next=\done\else
1153 \let\next=\maketoks
1154 \addtokens{\toksB}{\the\toksD}
1155 \ifx\first,\addtokens{\toksB}{\space}\fi
1157 \fi\fi\fi\fi\fi\fi\fi\fi\fi\fi
1158 \next}
1159 \def\makelink{\addtokens{\toksB}%
1160 {\noexpand\pdflink{\the\toksC}}\toksC={}\global\countA=0}
1161 \def\pdflink#1{%
1162 \startlink attr{/Border [0 0 0]} goto name{\pdfmkpgn{#1}}
1163 \linkcolor #1\endlink}
1164 \def\done{\edef\st{\global\noexpand\toksA={\the\toksB}}\st}
1165 \fi % \ifx\pdfoutput
1168 \message{fonts,}
1169 % Font-change commands.
1171 % Texinfo sort of supports the sans serif font style, which plain TeX does not.
1172 % So we set up a \sf analogous to plain's \rm, etc.
1173 \newfam\sffam
1174 \def\sf{\fam=\sffam \tensf}
1175 \let\li = \sf % Sometimes we call it \li, not \sf.
1177 % We don't need math for this one.
1178 \def\ttsl{\tenttsl}
1180 % Default leading.
1181 \newdimen\textleading \textleading = 13.2pt
1183 % Set the baselineskip to #1, and the lineskip and strut size
1184 % correspondingly. There is no deep meaning behind these magic numbers
1185 % used as factors; they just match (closely enough) what Knuth defined.
1187 \def\lineskipfactor{.08333}
1188 \def\strutheightpercent{.70833}
1189 \def\strutdepthpercent {.29167}
1191 \def\setleading#1{%
1192 \normalbaselineskip = #1\relax
1193 \normallineskip = \lineskipfactor\normalbaselineskip
1194 \normalbaselines
1195 \setbox\strutbox =\hbox{%
1196 \vrule width0pt height\strutheightpercent\baselineskip
1197 depth \strutdepthpercent \baselineskip
1201 % Set the font macro #1 to the font named #2, adding on the
1202 % specified font prefix (normally `cm').
1203 % #3 is the font's design size, #4 is a scale factor
1204 \def\setfont#1#2#3#4{\font#1=\fontprefix#2#3 scaled #4}
1206 % Use cm as the default font prefix.
1207 % To specify the font prefix, you must define \fontprefix
1208 % before you read in texinfo.tex.
1209 \ifx\fontprefix\undefined
1210 \def\fontprefix{cm}
1212 % Support font families that don't use the same naming scheme as CM.
1213 \def\rmshape{r}
1214 \def\rmbshape{bx} %where the normal face is bold
1215 \def\bfshape{b}
1216 \def\bxshape{bx}
1217 \def\ttshape{tt}
1218 \def\ttbshape{tt}
1219 \def\ttslshape{sltt}
1220 \def\itshape{ti}
1221 \def\itbshape{bxti}
1222 \def\slshape{sl}
1223 \def\slbshape{bxsl}
1224 \def\sfshape{ss}
1225 \def\sfbshape{ss}
1226 \def\scshape{csc}
1227 \def\scbshape{csc}
1229 \newcount\mainmagstep
1230 \ifx\bigger\relax
1231 % not really supported.
1232 \mainmagstep=\magstep1
1233 \setfont\textrm\rmshape{12}{1000}
1234 \setfont\texttt\ttshape{12}{1000}
1235 \else
1236 \mainmagstep=\magstephalf
1237 \setfont\textrm\rmshape{10}{\mainmagstep}
1238 \setfont\texttt\ttshape{10}{\mainmagstep}
1240 % Instead of cmb10, you may want to use cmbx10.
1241 % cmbx10 is a prettier font on its own, but cmb10
1242 % looks better when embedded in a line with cmr10
1243 % (in Bob's opinion).
1244 \setfont\textbf\bfshape{10}{\mainmagstep}
1245 \setfont\textit\itshape{10}{\mainmagstep}
1246 \setfont\textsl\slshape{10}{\mainmagstep}
1247 \setfont\textsf\sfshape{10}{\mainmagstep}
1248 \setfont\textsc\scshape{10}{\mainmagstep}
1249 \setfont\textttsl\ttslshape{10}{\mainmagstep}
1250 \font\texti=cmmi10 scaled \mainmagstep
1251 \font\textsy=cmsy10 scaled \mainmagstep
1253 % A few fonts for @defun, etc.
1254 \setfont\defbf\bxshape{10}{\magstep1} %was 1314
1255 \setfont\deftt\ttshape{10}{\magstep1}
1256 \def\df{\let\tentt=\deftt \let\tenbf = \defbf \bf}
1258 % Fonts for indices, footnotes, small examples (9pt).
1259 \setfont\smallrm\rmshape{9}{1000}
1260 \setfont\smalltt\ttshape{9}{1000}
1261 \setfont\smallbf\bfshape{10}{900}
1262 \setfont\smallit\itshape{9}{1000}
1263 \setfont\smallsl\slshape{9}{1000}
1264 \setfont\smallsf\sfshape{9}{1000}
1265 \setfont\smallsc\scshape{10}{900}
1266 \setfont\smallttsl\ttslshape{10}{900}
1267 \font\smalli=cmmi9
1268 \font\smallsy=cmsy9
1270 % Fonts for small examples (8pt).
1271 \setfont\smallerrm\rmshape{8}{1000}
1272 \setfont\smallertt\ttshape{8}{1000}
1273 \setfont\smallerbf\bfshape{10}{800}
1274 \setfont\smallerit\itshape{8}{1000}
1275 \setfont\smallersl\slshape{8}{1000}
1276 \setfont\smallersf\sfshape{8}{1000}
1277 \setfont\smallersc\scshape{10}{800}
1278 \setfont\smallerttsl\ttslshape{10}{800}
1279 \font\smalleri=cmmi8
1280 \font\smallersy=cmsy8
1282 % Fonts for title page:
1283 \setfont\titlerm\rmbshape{12}{\magstep3}
1284 \setfont\titleit\itbshape{10}{\magstep4}
1285 \setfont\titlesl\slbshape{10}{\magstep4}
1286 \setfont\titlett\ttbshape{12}{\magstep3}
1287 \setfont\titlettsl\ttslshape{10}{\magstep4}
1288 \setfont\titlesf\sfbshape{17}{\magstep1}
1289 \let\titlebf=\titlerm
1290 \setfont\titlesc\scbshape{10}{\magstep4}
1291 \font\titlei=cmmi12 scaled \magstep3
1292 \font\titlesy=cmsy10 scaled \magstep4
1293 \def\authorrm{\secrm}
1294 \def\authortt{\sectt}
1296 % Chapter (and unnumbered) fonts (17.28pt).
1297 \setfont\chaprm\rmbshape{12}{\magstep2}
1298 \setfont\chapit\itbshape{10}{\magstep3}
1299 \setfont\chapsl\slbshape{10}{\magstep3}
1300 \setfont\chaptt\ttbshape{12}{\magstep2}
1301 \setfont\chapttsl\ttslshape{10}{\magstep3}
1302 \setfont\chapsf\sfbshape{17}{1000}
1303 \let\chapbf=\chaprm
1304 \setfont\chapsc\scbshape{10}{\magstep3}
1305 \font\chapi=cmmi12 scaled \magstep2
1306 \font\chapsy=cmsy10 scaled \magstep3
1308 % Section fonts (14.4pt).
1309 \setfont\secrm\rmbshape{12}{\magstep1}
1310 \setfont\secit\itbshape{10}{\magstep2}
1311 \setfont\secsl\slbshape{10}{\magstep2}
1312 \setfont\sectt\ttbshape{12}{\magstep1}
1313 \setfont\secttsl\ttslshape{10}{\magstep2}
1314 \setfont\secsf\sfbshape{12}{\magstep1}
1315 \let\secbf\secrm
1316 \setfont\secsc\scbshape{10}{\magstep2}
1317 \font\seci=cmmi12 scaled \magstep1
1318 \font\secsy=cmsy10 scaled \magstep2
1320 % Subsection fonts (13.15pt).
1321 \setfont\ssecrm\rmbshape{12}{\magstephalf}
1322 \setfont\ssecit\itbshape{10}{1315}
1323 \setfont\ssecsl\slbshape{10}{1315}
1324 \setfont\ssectt\ttbshape{12}{\magstephalf}
1325 \setfont\ssecttsl\ttslshape{10}{1315}
1326 \setfont\ssecsf\sfbshape{12}{\magstephalf}
1327 \let\ssecbf\ssecrm
1328 \setfont\ssecsc\scbshape{10}{\magstep1}
1329 \font\sseci=cmmi12 scaled \magstephalf
1330 \font\ssecsy=cmsy10 scaled 1315
1331 % The smallcaps and symbol fonts should actually be scaled \magstep1.5,
1332 % but that is not a standard magnification.
1334 % In order for the font changes to affect most math symbols and letters,
1335 % we have to define the \textfont of the standard families. Since
1336 % texinfo doesn't allow for producing subscripts and superscripts except
1337 % in the main text, we don't bother to reset \scriptfont and
1338 % \scriptscriptfont (which would also require loading a lot more fonts).
1340 \def\resetmathfonts{%
1341 \textfont0=\tenrm \textfont1=\teni \textfont2=\tensy
1342 \textfont\itfam=\tenit \textfont\slfam=\tensl \textfont\bffam=\tenbf
1343 \textfont\ttfam=\tentt \textfont\sffam=\tensf
1346 % The font-changing commands redefine the meanings of \tenSTYLE, instead
1347 % of just \STYLE. We do this so that font changes will continue to work
1348 % in math mode, where it is the current \fam that is relevant in most
1349 % cases, not the current font. Plain TeX does \def\bf{\fam=\bffam
1350 % \tenbf}, for example. By redefining \tenbf, we obviate the need to
1351 % redefine \bf itself.
1352 \def\textfonts{%
1353 \let\tenrm=\textrm \let\tenit=\textit \let\tensl=\textsl
1354 \let\tenbf=\textbf \let\tentt=\texttt \let\smallcaps=\textsc
1355 \let\tensf=\textsf \let\teni=\texti \let\tensy=\textsy \let\tenttsl=\textttsl
1356 \resetmathfonts \setleading{\textleading}}
1357 \def\titlefonts{%
1358 \let\tenrm=\titlerm \let\tenit=\titleit \let\tensl=\titlesl
1359 \let\tenbf=\titlebf \let\tentt=\titlett \let\smallcaps=\titlesc
1360 \let\tensf=\titlesf \let\teni=\titlei \let\tensy=\titlesy
1361 \let\tenttsl=\titlettsl
1362 \resetmathfonts \setleading{25pt}}
1363 \def\titlefont#1{{\titlefonts\rm #1}}
1364 \def\chapfonts{%
1365 \let\tenrm=\chaprm \let\tenit=\chapit \let\tensl=\chapsl
1366 \let\tenbf=\chapbf \let\tentt=\chaptt \let\smallcaps=\chapsc
1367 \let\tensf=\chapsf \let\teni=\chapi \let\tensy=\chapsy \let\tenttsl=\chapttsl
1368 \resetmathfonts \setleading{19pt}}
1369 \def\secfonts{%
1370 \let\tenrm=\secrm \let\tenit=\secit \let\tensl=\secsl
1371 \let\tenbf=\secbf \let\tentt=\sectt \let\smallcaps=\secsc
1372 \let\tensf=\secsf \let\teni=\seci \let\tensy=\secsy \let\tenttsl=\secttsl
1373 \resetmathfonts \setleading{16pt}}
1374 \def\subsecfonts{%
1375 \let\tenrm=\ssecrm \let\tenit=\ssecit \let\tensl=\ssecsl
1376 \let\tenbf=\ssecbf \let\tentt=\ssectt \let\smallcaps=\ssecsc
1377 \let\tensf=\ssecsf \let\teni=\sseci \let\tensy=\ssecsy \let\tenttsl=\ssecttsl
1378 \resetmathfonts \setleading{15pt}}
1379 \let\subsubsecfonts = \subsecfonts % Maybe make sssec fonts scaled magstephalf?
1380 \def\smallfonts{%
1381 \let\tenrm=\smallrm \let\tenit=\smallit \let\tensl=\smallsl
1382 \let\tenbf=\smallbf \let\tentt=\smalltt \let\smallcaps=\smallsc
1383 \let\tensf=\smallsf \let\teni=\smalli \let\tensy=\smallsy
1384 \let\tenttsl=\smallttsl
1385 \resetmathfonts \setleading{10.5pt}}
1386 \def\smallerfonts{%
1387 \let\tenrm=\smallerrm \let\tenit=\smallerit \let\tensl=\smallersl
1388 \let\tenbf=\smallerbf \let\tentt=\smallertt \let\smallcaps=\smallersc
1389 \let\tensf=\smallersf \let\teni=\smalleri \let\tensy=\smallersy
1390 \let\tenttsl=\smallerttsl
1391 \resetmathfonts \setleading{9.5pt}}
1393 % Set the fonts to use with the @small... environments.
1394 \let\smallexamplefonts = \smallfonts
1396 % About \smallexamplefonts. If we use \smallfonts (9pt), @smallexample
1397 % can fit this many characters:
1398 % 8.5x11=86 smallbook=72 a4=90 a5=69
1399 % If we use \smallerfonts (8pt), then we can fit this many characters:
1400 % 8.5x11=90+ smallbook=80 a4=90+ a5=77
1401 % For me, subjectively, the few extra characters that fit aren't worth
1402 % the additional smallness of 8pt. So I'm making the default 9pt.
1404 % By the way, for comparison, here's what fits with @example (10pt):
1405 % 8.5x11=71 smallbook=60 a4=75 a5=58
1407 % I wish we used A4 paper on this side of the Atlantic.
1409 % --karl, 24jan03.
1412 % Set up the default fonts, so we can use them for creating boxes.
1414 \textfonts
1416 % Define these so they can be easily changed for other fonts.
1417 \def\angleleft{$\langle$}
1418 \def\angleright{$\rangle$}
1420 % Count depth in font-changes, for error checks
1421 \newcount\fontdepth \fontdepth=0
1423 % Fonts for short table of contents.
1424 \setfont\shortcontrm\rmshape{12}{1000}
1425 \setfont\shortcontbf\bxshape{12}{1000}
1426 \setfont\shortcontsl\slshape{12}{1000}
1427 \setfont\shortconttt\ttshape{12}{1000}
1429 %% Add scribe-like font environments, plus @l for inline lisp (usually sans
1430 %% serif) and @ii for TeX italic
1432 % \smartitalic{ARG} outputs arg in italics, followed by an italic correction
1433 % unless the following character is such as not to need one.
1434 \def\smartitalicx{\ifx\next,\else\ifx\next-\else\ifx\next.\else\/\fi\fi\fi}
1435 \def\smartslanted#1{{\ifusingtt\ttsl\sl #1}\futurelet\next\smartitalicx}
1436 \def\smartitalic#1{{\ifusingtt\ttsl\it #1}\futurelet\next\smartitalicx}
1438 \let\i=\smartitalic
1439 \let\var=\smartslanted
1440 \let\dfn=\smartslanted
1441 \let\emph=\smartitalic
1442 \let\cite=\smartslanted
1444 \def\b#1{{\bf #1}}
1445 \let\strong=\b
1447 % We can't just use \exhyphenpenalty, because that only has effect at
1448 % the end of a paragraph. Restore normal hyphenation at the end of the
1449 % group within which \nohyphenation is presumably called.
1451 \def\nohyphenation{\hyphenchar\font = -1 \aftergroup\restorehyphenation}
1452 \def\restorehyphenation{\hyphenchar\font = `- }
1454 % Set sfcode to normal for the chars that usually have another value.
1455 % Can't use plain's \frenchspacing because it uses the `\x notation, and
1456 % sometimes \x has an active definition that messes things up.
1458 \catcode`@=11
1459 \def\frenchspacing{%
1460 \sfcode\dotChar =\@m \sfcode\questChar=\@m \sfcode\exclamChar=\@m
1461 \sfcode\colonChar=\@m \sfcode\semiChar =\@m \sfcode\commaChar =\@m
1463 \catcode`@=\other
1465 \def\t#1{%
1466 {\tt \rawbackslash \frenchspacing #1}%
1467 \null
1469 \let\ttfont=\t
1470 \def\samp#1{`\tclose{#1}'\null}
1471 \setfont\keyrm\rmshape{8}{1000}
1472 \font\keysy=cmsy9
1473 \def\key#1{{\keyrm\textfont2=\keysy \leavevmode\hbox{%
1474 \raise0.4pt\hbox{\angleleft}\kern-.08em\vtop{%
1475 \vbox{\hrule\kern-0.4pt
1476 \hbox{\raise0.4pt\hbox{\vphantom{\angleleft}}#1}}%
1477 \kern-0.4pt\hrule}%
1478 \kern-.06em\raise0.4pt\hbox{\angleright}}}}
1479 % The old definition, with no lozenge:
1480 %\def\key #1{{\ttsl \nohyphenation \uppercase{#1}}\null}
1481 \def\ctrl #1{{\tt \rawbackslash \hat}#1}
1483 % @file, @option are the same as @samp.
1484 \let\file=\samp
1485 \let\option=\samp
1487 % @code is a modification of @t,
1488 % which makes spaces the same size as normal in the surrounding text.
1489 \def\tclose#1{%
1491 % Change normal interword space to be same as for the current font.
1492 \spaceskip = \fontdimen2\font
1494 % Switch to typewriter.
1497 % But `\ ' produces the large typewriter interword space.
1498 \def\ {{\spaceskip = 0pt{} }}%
1500 % Turn off hyphenation.
1501 \nohyphenation
1503 \rawbackslash
1504 \frenchspacing
1507 \null
1510 % We *must* turn on hyphenation at `-' and `_' in \code.
1511 % Otherwise, it is too hard to avoid overfull hboxes
1512 % in the Emacs manual, the Library manual, etc.
1514 % Unfortunately, TeX uses one parameter (\hyphenchar) to control
1515 % both hyphenation at - and hyphenation within words.
1516 % We must therefore turn them both off (\tclose does that)
1517 % and arrange explicitly to hyphenate at a dash.
1518 % -- rms.
1520 \catcode`\-=\active
1521 \catcode`\_=\active
1523 \global\def\code{\begingroup
1524 \catcode`\-=\active \let-\codedash
1525 \catcode`\_=\active \let_\codeunder
1526 \codex
1529 % If we end up with any active - characters when handling the index,
1530 % just treat them as a normal -.
1531 \global\def\indexbreaks{\catcode`\-=\active \let-\realdash}
1534 \def\realdash{-}
1535 \def\codedash{-\discretionary{}{}{}}
1536 \def\codeunder{%
1537 % this is all so @math{@code{var_name}+1} can work. In math mode, _
1538 % is "active" (mathcode"8000) and \normalunderscore (or \char95, etc.)
1539 % will therefore expand the active definition of _, which is us
1540 % (inside @code that is), therefore an endless loop.
1541 \ifusingtt{\ifmmode
1542 \mathchar"075F % class 0=ordinary, family 7=ttfam, pos 0x5F=_.
1543 \else\normalunderscore \fi
1544 \discretionary{}{}{}}%
1545 {\_}%
1547 \def\codex #1{\tclose{#1}\endgroup}
1549 % @kbd is like @code, except that if the argument is just one @key command,
1550 % then @kbd has no effect.
1552 % @kbdinputstyle -- arg is `distinct' (@kbd uses slanted tty font always),
1553 % `example' (@kbd uses ttsl only inside of @example and friends),
1554 % or `code' (@kbd uses normal tty font always).
1555 \def\kbdinputstyle{\parsearg\kbdinputstylexxx}
1556 \def\kbdinputstylexxx#1{%
1557 \def\arg{#1}%
1558 \ifx\arg\worddistinct
1559 \gdef\kbdexamplefont{\ttsl}\gdef\kbdfont{\ttsl}%
1560 \else\ifx\arg\wordexample
1561 \gdef\kbdexamplefont{\ttsl}\gdef\kbdfont{\tt}%
1562 \else\ifx\arg\wordcode
1563 \gdef\kbdexamplefont{\tt}\gdef\kbdfont{\tt}%
1564 \else
1565 \errhelp = \EMsimple
1566 \errmessage{Unknown @kbdinputstyle `\arg'}%
1567 \fi\fi\fi
1569 \def\worddistinct{distinct}
1570 \def\wordexample{example}
1571 \def\wordcode{code}
1573 % Default is `distinct.'
1574 \kbdinputstyle distinct
1576 \def\xkey{\key}
1577 \def\kbdfoo#1#2#3\par{\def\one{#1}\def\three{#3}\def\threex{??}%
1578 \ifx\one\xkey\ifx\threex\three \key{#2}%
1579 \else{\tclose{\kbdfont\look}}\fi
1580 \else{\tclose{\kbdfont\look}}\fi}
1582 % For @url, @env, @command quotes seem unnecessary, so use \code.
1583 \let\url=\code
1584 \let\env=\code
1585 \let\command=\code
1587 % @uref (abbreviation for `urlref') takes an optional (comma-separated)
1588 % second argument specifying the text to display and an optional third
1589 % arg as text to display instead of (rather than in addition to) the url
1590 % itself. First (mandatory) arg is the url. Perhaps eventually put in
1591 % a hypertex \special here.
1593 \def\uref#1{\douref #1,,,\finish}
1594 \def\douref#1,#2,#3,#4\finish{\begingroup
1595 \unsepspaces
1596 \pdfurl{#1}%
1597 \setbox0 = \hbox{\ignorespaces #3}%
1598 \ifdim\wd0 > 0pt
1599 \unhbox0 % third arg given, show only that
1600 \else
1601 \setbox0 = \hbox{\ignorespaces #2}%
1602 \ifdim\wd0 > 0pt
1603 \ifpdf
1604 \unhbox0 % PDF: 2nd arg given, show only it
1605 \else
1606 \unhbox0\ (\code{#1})% DVI: 2nd arg given, show both it and url
1608 \else
1609 \code{#1}% only url given, so show it
1612 \endlink
1613 \endgroup}
1615 % rms does not like angle brackets --karl, 17may97.
1616 % So now @email is just like @uref, unless we are pdf.
1618 %\def\email#1{\angleleft{\tt #1}\angleright}
1619 \ifpdf
1620 \def\email#1{\doemail#1,,\finish}
1621 \def\doemail#1,#2,#3\finish{\begingroup
1622 \unsepspaces
1623 \pdfurl{mailto:#1}%
1624 \setbox0 = \hbox{\ignorespaces #2}%
1625 \ifdim\wd0>0pt\unhbox0\else\code{#1}\fi
1626 \endlink
1627 \endgroup}
1628 \else
1629 \let\email=\uref
1632 % Check if we are currently using a typewriter font. Since all the
1633 % Computer Modern typewriter fonts have zero interword stretch (and
1634 % shrink), and it is reasonable to expect all typewriter fonts to have
1635 % this property, we can check that font parameter.
1637 \def\ifmonospace{\ifdim\fontdimen3\font=0pt }
1639 % Typeset a dimension, e.g., `in' or `pt'. The only reason for the
1640 % argument is to make the input look right: @dmn{pt} instead of @dmn{}pt.
1642 \def\dmn#1{\thinspace #1}
1644 \def\kbd#1{\def\look{#1}\expandafter\kbdfoo\look??\par}
1646 % @l was never documented to mean ``switch to the Lisp font'',
1647 % and it is not used as such in any manual I can find. We need it for
1648 % Polish suppressed-l. --karl, 22sep96.
1649 %\def\l#1{{\li #1}\null}
1651 % Explicit font changes: @r, @sc, undocumented @ii.
1652 \def\r#1{{\rm #1}} % roman font
1653 \def\sc#1{{\smallcaps#1}} % smallcaps font
1654 \def\ii#1{{\it #1}} % italic font
1656 % @acronym downcases the argument and prints in smallcaps.
1657 \def\acronym#1{{\smallcaps \lowercase{#1}}}
1659 % @pounds{} is a sterling sign.
1660 \def\pounds{{\it\$}}
1663 \message{page headings,}
1665 \newskip\titlepagetopglue \titlepagetopglue = 1.5in
1666 \newskip\titlepagebottomglue \titlepagebottomglue = 2pc
1668 % First the title page. Must do @settitle before @titlepage.
1669 \newif\ifseenauthor
1670 \newif\iffinishedtitlepage
1672 % Do an implicit @contents or @shortcontents after @end titlepage if the
1673 % user says @setcontentsaftertitlepage or @setshortcontentsaftertitlepage.
1675 \newif\ifsetcontentsaftertitlepage
1676 \let\setcontentsaftertitlepage = \setcontentsaftertitlepagetrue
1677 \newif\ifsetshortcontentsaftertitlepage
1678 \let\setshortcontentsaftertitlepage = \setshortcontentsaftertitlepagetrue
1680 \def\shorttitlepage{\parsearg\shorttitlepagezzz}
1681 \def\shorttitlepagezzz #1{\begingroup\hbox{}\vskip 1.5in \chaprm \centerline{#1}%
1682 \endgroup\page\hbox{}\page}
1684 \def\titlepage{\begingroup \parindent=0pt \textfonts
1685 \let\subtitlerm=\tenrm
1686 \def\subtitlefont{\subtitlerm \normalbaselineskip = 13pt \normalbaselines}%
1688 \def\authorfont{\authorrm \normalbaselineskip = 16pt \normalbaselines
1689 \let\tt=\authortt}%
1691 % Leave some space at the very top of the page.
1692 \vglue\titlepagetopglue
1694 % Now you can print the title using @title.
1695 \def\title{\parsearg\titlezzz}%
1696 \def\titlezzz##1{\leftline{\titlefonts\rm ##1}
1697 % print a rule at the page bottom also.
1698 \finishedtitlepagefalse
1699 \vskip4pt \hrule height 4pt width \hsize \vskip4pt}%
1700 % No rule at page bottom unless we print one at the top with @title.
1701 \finishedtitlepagetrue
1703 % Now you can put text using @subtitle.
1704 \def\subtitle{\parsearg\subtitlezzz}%
1705 \def\subtitlezzz##1{{\subtitlefont \rightline{##1}}}%
1707 % @author should come last, but may come many times.
1708 \def\author{\parsearg\authorzzz}%
1709 \def\authorzzz##1{\ifseenauthor\else\vskip 0pt plus 1filll\seenauthortrue\fi
1710 {\authorfont \leftline{##1}}}%
1712 % Most title ``pages'' are actually two pages long, with space
1713 % at the top of the second. We don't want the ragged left on the second.
1714 \let\oldpage = \page
1715 \def\page{%
1716 \iffinishedtitlepage\else
1717 \finishtitlepage
1719 \oldpage
1720 \let\page = \oldpage
1721 \hbox{}}%
1722 % \def\page{\oldpage \hbox{}}
1725 \def\Etitlepage{%
1726 \iffinishedtitlepage\else
1727 \finishtitlepage
1729 % It is important to do the page break before ending the group,
1730 % because the headline and footline are only empty inside the group.
1731 % If we use the new definition of \page, we always get a blank page
1732 % after the title page, which we certainly don't want.
1733 \oldpage
1734 \endgroup
1736 % Need this before the \...aftertitlepage checks so that if they are
1737 % in effect the toc pages will come out with page numbers.
1738 \HEADINGSon
1740 % If they want short, they certainly want long too.
1741 \ifsetshortcontentsaftertitlepage
1742 \shortcontents
1743 \contents
1744 \global\let\shortcontents = \relax
1745 \global\let\contents = \relax
1748 \ifsetcontentsaftertitlepage
1749 \contents
1750 \global\let\contents = \relax
1751 \global\let\shortcontents = \relax
1755 \def\finishtitlepage{%
1756 \vskip4pt \hrule height 2pt width \hsize
1757 \vskip\titlepagebottomglue
1758 \finishedtitlepagetrue
1761 %%% Set up page headings and footings.
1763 \let\thispage=\folio
1765 \newtoks\evenheadline % headline on even pages
1766 \newtoks\oddheadline % headline on odd pages
1767 \newtoks\evenfootline % footline on even pages
1768 \newtoks\oddfootline % footline on odd pages
1770 % Now make Tex use those variables
1771 \headline={{\textfonts\rm \ifodd\pageno \the\oddheadline
1772 \else \the\evenheadline \fi}}
1773 \footline={{\textfonts\rm \ifodd\pageno \the\oddfootline
1774 \else \the\evenfootline \fi}\HEADINGShook}
1775 \let\HEADINGShook=\relax
1777 % Commands to set those variables.
1778 % For example, this is what @headings on does
1779 % @evenheading @thistitle|@thispage|@thischapter
1780 % @oddheading @thischapter|@thispage|@thistitle
1781 % @evenfooting @thisfile||
1782 % @oddfooting ||@thisfile
1784 \def\evenheading{\parsearg\evenheadingxxx}
1785 \def\oddheading{\parsearg\oddheadingxxx}
1786 \def\everyheading{\parsearg\everyheadingxxx}
1788 \def\evenfooting{\parsearg\evenfootingxxx}
1789 \def\oddfooting{\parsearg\oddfootingxxx}
1790 \def\everyfooting{\parsearg\everyfootingxxx}
1792 {\catcode`\@=0 %
1794 \gdef\evenheadingxxx #1{\evenheadingyyy #1@|@|@|@|\finish}
1795 \gdef\evenheadingyyy #1@|#2@|#3@|#4\finish{%
1796 \global\evenheadline={\rlap{\centerline{#2}}\line{#1\hfil#3}}}
1798 \gdef\oddheadingxxx #1{\oddheadingyyy #1@|@|@|@|\finish}
1799 \gdef\oddheadingyyy #1@|#2@|#3@|#4\finish{%
1800 \global\oddheadline={\rlap{\centerline{#2}}\line{#1\hfil#3}}}
1802 \gdef\everyheadingxxx#1{\oddheadingxxx{#1}\evenheadingxxx{#1}}%
1804 \gdef\evenfootingxxx #1{\evenfootingyyy #1@|@|@|@|\finish}
1805 \gdef\evenfootingyyy #1@|#2@|#3@|#4\finish{%
1806 \global\evenfootline={\rlap{\centerline{#2}}\line{#1\hfil#3}}}
1808 \gdef\oddfootingxxx #1{\oddfootingyyy #1@|@|@|@|\finish}
1809 \gdef\oddfootingyyy #1@|#2@|#3@|#4\finish{%
1810 \global\oddfootline = {\rlap{\centerline{#2}}\line{#1\hfil#3}}%
1812 % Leave some space for the footline. Hopefully ok to assume
1813 % @evenfooting will not be used by itself.
1814 \global\advance\pageheight by -\baselineskip
1815 \global\advance\vsize by -\baselineskip
1818 \gdef\everyfootingxxx#1{\oddfootingxxx{#1}\evenfootingxxx{#1}}
1820 }% unbind the catcode of @.
1822 % @headings double turns headings on for double-sided printing.
1823 % @headings single turns headings on for single-sided printing.
1824 % @headings off turns them off.
1825 % @headings on same as @headings double, retained for compatibility.
1826 % @headings after turns on double-sided headings after this page.
1827 % @headings doubleafter turns on double-sided headings after this page.
1828 % @headings singleafter turns on single-sided headings after this page.
1829 % By default, they are off at the start of a document,
1830 % and turned `on' after @end titlepage.
1832 \def\headings #1 {\csname HEADINGS#1\endcsname}
1834 \def\HEADINGSoff{
1835 \global\evenheadline={\hfil} \global\evenfootline={\hfil}
1836 \global\oddheadline={\hfil} \global\oddfootline={\hfil}}
1837 \HEADINGSoff
1838 % When we turn headings on, set the page number to 1.
1839 % For double-sided printing, put current file name in lower left corner,
1840 % chapter name on inside top of right hand pages, document
1841 % title on inside top of left hand pages, and page numbers on outside top
1842 % edge of all pages.
1843 \def\HEADINGSdouble{
1844 \global\pageno=1
1845 \global\evenfootline={\hfil}
1846 \global\oddfootline={\hfil}
1847 \global\evenheadline={\line{\folio\hfil\thistitle}}
1848 \global\oddheadline={\line{\thischapter\hfil\folio}}
1849 \global\let\contentsalignmacro = \chapoddpage
1851 \let\contentsalignmacro = \chappager
1853 % For single-sided printing, chapter title goes across top left of page,
1854 % page number on top right.
1855 \def\HEADINGSsingle{
1856 \global\pageno=1
1857 \global\evenfootline={\hfil}
1858 \global\oddfootline={\hfil}
1859 \global\evenheadline={\line{\thischapter\hfil\folio}}
1860 \global\oddheadline={\line{\thischapter\hfil\folio}}
1861 \global\let\contentsalignmacro = \chappager
1863 \def\HEADINGSon{\HEADINGSdouble}
1865 \def\HEADINGSafter{\let\HEADINGShook=\HEADINGSdoublex}
1866 \let\HEADINGSdoubleafter=\HEADINGSafter
1867 \def\HEADINGSdoublex{%
1868 \global\evenfootline={\hfil}
1869 \global\oddfootline={\hfil}
1870 \global\evenheadline={\line{\folio\hfil\thistitle}}
1871 \global\oddheadline={\line{\thischapter\hfil\folio}}
1872 \global\let\contentsalignmacro = \chapoddpage
1875 \def\HEADINGSsingleafter{\let\HEADINGShook=\HEADINGSsinglex}
1876 \def\HEADINGSsinglex{%
1877 \global\evenfootline={\hfil}
1878 \global\oddfootline={\hfil}
1879 \global\evenheadline={\line{\thischapter\hfil\folio}}
1880 \global\oddheadline={\line{\thischapter\hfil\folio}}
1881 \global\let\contentsalignmacro = \chappager
1884 % Subroutines used in generating headings
1885 % This produces Day Month Year style of output.
1886 % Only define if not already defined, in case a txi-??.tex file has set
1887 % up a different format (e.g., txi-cs.tex does this).
1888 \ifx\today\undefined
1889 \def\today{%
1890 \number\day\space
1891 \ifcase\month
1892 \or\putwordMJan\or\putwordMFeb\or\putwordMMar\or\putwordMApr
1893 \or\putwordMMay\or\putwordMJun\or\putwordMJul\or\putwordMAug
1894 \or\putwordMSep\or\putwordMOct\or\putwordMNov\or\putwordMDec
1896 \space\number\year}
1899 % @settitle line... specifies the title of the document, for headings.
1900 % It generates no output of its own.
1901 \def\thistitle{\putwordNoTitle}
1902 \def\settitle{\parsearg\settitlezzz}
1903 \def\settitlezzz #1{\gdef\thistitle{#1}}
1906 \message{tables,}
1907 % Tables -- @table, @ftable, @vtable, @item(x), @kitem(x), @xitem(x).
1909 % default indentation of table text
1910 \newdimen\tableindent \tableindent=.8in
1911 % default indentation of @itemize and @enumerate text
1912 \newdimen\itemindent \itemindent=.3in
1913 % margin between end of table item and start of table text.
1914 \newdimen\itemmargin \itemmargin=.1in
1916 % used internally for \itemindent minus \itemmargin
1917 \newdimen\itemmax
1919 % Note @table, @vtable, and @vtable define @item, @itemx, etc., with
1920 % these defs.
1921 % They also define \itemindex
1922 % to index the item name in whatever manner is desired (perhaps none).
1924 \newif\ifitemxneedsnegativevskip
1926 \def\itemxpar{\par\ifitemxneedsnegativevskip\nobreak\vskip-\parskip\nobreak\fi}
1928 \def\internalBitem{\smallbreak \parsearg\itemzzz}
1929 \def\internalBitemx{\itemxpar \parsearg\itemzzz}
1931 \def\internalBxitem "#1"{\def\xitemsubtopix{#1} \smallbreak \parsearg\xitemzzz}
1932 \def\internalBxitemx "#1"{\def\xitemsubtopix{#1} \itemxpar \parsearg\xitemzzz}
1934 \def\internalBkitem{\smallbreak \parsearg\kitemzzz}
1935 \def\internalBkitemx{\itemxpar \parsearg\kitemzzz}
1937 \def\kitemzzz #1{\dosubind {kw}{\code{#1}}{for {\bf \lastfunction}}%
1938 \itemzzz {#1}}
1940 \def\xitemzzz #1{\dosubind {kw}{\code{#1}}{for {\bf \xitemsubtopic}}%
1941 \itemzzz {#1}}
1943 \def\itemzzz #1{\begingroup %
1944 \advance\hsize by -\rightskip
1945 \advance\hsize by -\tableindent
1946 \setbox0=\hbox{\itemfont{#1}}%
1947 \itemindex{#1}%
1948 \nobreak % This prevents a break before @itemx.
1950 % If the item text does not fit in the space we have, put it on a line
1951 % by itself, and do not allow a page break either before or after that
1952 % line. We do not start a paragraph here because then if the next
1953 % command is, e.g., @kindex, the whatsit would get put into the
1954 % horizontal list on a line by itself, resulting in extra blank space.
1955 \ifdim \wd0>\itemmax
1957 % Make this a paragraph so we get the \parskip glue and wrapping,
1958 % but leave it ragged-right.
1959 \begingroup
1960 \advance\leftskip by-\tableindent
1961 \advance\hsize by\tableindent
1962 \advance\rightskip by0pt plus1fil
1963 \leavevmode\unhbox0\par
1964 \endgroup
1966 % We're going to be starting a paragraph, but we don't want the
1967 % \parskip glue -- logically it's part of the @item we just started.
1968 \nobreak \vskip-\parskip
1970 % Stop a page break at the \parskip glue coming up. (Unfortunately
1971 % we can't prevent a possible page break at the following
1972 % \baselineskip glue.) However, if what follows is an environment
1973 % such as @example, there will be no \parskip glue; then
1974 % the negative vskip we just would cause the example and the item to
1975 % crash together. So we use this bizarre value of 10001 as a signal
1976 % to \aboveenvbreak to insert \parskip glue after all.
1977 % (Possibly there are other commands that could be followed by
1978 % @example which need the same treatment, but not section titles; or
1979 % maybe section titles are the only special case and they should be
1980 % penalty 10001...)
1981 \penalty 10001
1982 \endgroup
1983 \itemxneedsnegativevskipfalse
1984 \else
1985 % The item text fits into the space. Start a paragraph, so that the
1986 % following text (if any) will end up on the same line.
1987 \noindent
1988 % Do this with kerns and \unhbox so that if there is a footnote in
1989 % the item text, it can migrate to the main vertical list and
1990 % eventually be printed.
1991 \nobreak\kern-\tableindent
1992 \dimen0 = \itemmax \advance\dimen0 by \itemmargin \advance\dimen0 by -\wd0
1993 \unhbox0
1994 \nobreak\kern\dimen0
1995 \endgroup
1996 \itemxneedsnegativevskiptrue
2000 \def\item{\errmessage{@item while not in a table}}
2001 \def\itemx{\errmessage{@itemx while not in a table}}
2002 \def\kitem{\errmessage{@kitem while not in a table}}
2003 \def\kitemx{\errmessage{@kitemx while not in a table}}
2004 \def\xitem{\errmessage{@xitem while not in a table}}
2005 \def\xitemx{\errmessage{@xitemx while not in a table}}
2007 % Contains a kludge to get @end[description] to work.
2008 \def\description{\tablez{\dontindex}{1}{}{}{}{}}
2010 % @table, @ftable, @vtable.
2011 \def\table{\begingroup\inENV\obeylines\obeyspaces\tablex}
2012 {\obeylines\obeyspaces%
2013 \gdef\tablex #1^^M{%
2014 \tabley\dontindex#1 \endtabley}}
2016 \def\ftable{\begingroup\inENV\obeylines\obeyspaces\ftablex}
2017 {\obeylines\obeyspaces%
2018 \gdef\ftablex #1^^M{%
2019 \tabley\fnitemindex#1 \endtabley
2020 \def\Eftable{\endgraf\afterenvbreak\endgroup}%
2021 \let\Etable=\relax}}
2023 \def\vtable{\begingroup\inENV\obeylines\obeyspaces\vtablex}
2024 {\obeylines\obeyspaces%
2025 \gdef\vtablex #1^^M{%
2026 \tabley\vritemindex#1 \endtabley
2027 \def\Evtable{\endgraf\afterenvbreak\endgroup}%
2028 \let\Etable=\relax}}
2030 \def\dontindex #1{}
2031 \def\fnitemindex #1{\doind {fn}{\code{#1}}}%
2032 \def\vritemindex #1{\doind {vr}{\code{#1}}}%
2034 {\obeyspaces %
2035 \gdef\tabley#1#2 #3 #4 #5 #6 #7\endtabley{\endgroup%
2036 \tablez{#1}{#2}{#3}{#4}{#5}{#6}}}
2038 \def\tablez #1#2#3#4#5#6{%
2039 \aboveenvbreak %
2040 \begingroup %
2041 \def\Edescription{\Etable}% Necessary kludge.
2042 \let\itemindex=#1%
2043 \ifnum 0#3>0 \advance \leftskip by #3\mil \fi %
2044 \ifnum 0#4>0 \tableindent=#4\mil \fi %
2045 \ifnum 0#5>0 \advance \rightskip by #5\mil \fi %
2046 \def\itemfont{#2}%
2047 \itemmax=\tableindent %
2048 \advance \itemmax by -\itemmargin %
2049 \advance \leftskip by \tableindent %
2050 \exdentamount=\tableindent
2051 \parindent = 0pt
2052 \parskip = \smallskipamount
2053 \ifdim \parskip=0pt \parskip=2pt \fi%
2054 \def\Etable{\endgraf\afterenvbreak\endgroup}%
2055 \let\item = \internalBitem %
2056 \let\itemx = \internalBitemx %
2057 \let\kitem = \internalBkitem %
2058 \let\kitemx = \internalBkitemx %
2059 \let\xitem = \internalBxitem %
2060 \let\xitemx = \internalBxitemx %
2063 % This is the counter used by @enumerate, which is really @itemize
2065 \newcount \itemno
2067 \def\itemize{\parsearg\itemizezzz}
2069 \def\itemizezzz #1{%
2070 \begingroup % ended by the @end itemize
2071 \itemizey {#1}{\Eitemize}
2074 \def\itemizey #1#2{%
2075 \aboveenvbreak %
2076 \itemmax=\itemindent %
2077 \advance \itemmax by -\itemmargin %
2078 \advance \leftskip by \itemindent %
2079 \exdentamount=\itemindent
2080 \parindent = 0pt %
2081 \parskip = \smallskipamount %
2082 \ifdim \parskip=0pt \parskip=2pt \fi%
2083 \def#2{\endgraf\afterenvbreak\endgroup}%
2084 \def\itemcontents{#1}%
2085 \let\item=\itemizeitem}
2087 % \splitoff TOKENS\endmark defines \first to be the first token in
2088 % TOKENS, and \rest to be the remainder.
2090 \def\splitoff#1#2\endmark{\def\first{#1}\def\rest{#2}}%
2092 % Allow an optional argument of an uppercase letter, lowercase letter,
2093 % or number, to specify the first label in the enumerated list. No
2094 % argument is the same as `1'.
2096 \def\enumerate{\parsearg\enumeratezzz}
2097 \def\enumeratezzz #1{\enumeratey #1 \endenumeratey}
2098 \def\enumeratey #1 #2\endenumeratey{%
2099 \begingroup % ended by the @end enumerate
2101 % If we were given no argument, pretend we were given `1'.
2102 \def\thearg{#1}%
2103 \ifx\thearg\empty \def\thearg{1}\fi
2105 % Detect if the argument is a single token. If so, it might be a
2106 % letter. Otherwise, the only valid thing it can be is a number.
2107 % (We will always have one token, because of the test we just made.
2108 % This is a good thing, since \splitoff doesn't work given nothing at
2109 % all -- the first parameter is undelimited.)
2110 \expandafter\splitoff\thearg\endmark
2111 \ifx\rest\empty
2112 % Only one token in the argument. It could still be anything.
2113 % A ``lowercase letter'' is one whose \lccode is nonzero.
2114 % An ``uppercase letter'' is one whose \lccode is both nonzero, and
2115 % not equal to itself.
2116 % Otherwise, we assume it's a number.
2118 % We need the \relax at the end of the \ifnum lines to stop TeX from
2119 % continuing to look for a <number>.
2121 \ifnum\lccode\expandafter`\thearg=0\relax
2122 \numericenumerate % a number (we hope)
2123 \else
2124 % It's a letter.
2125 \ifnum\lccode\expandafter`\thearg=\expandafter`\thearg\relax
2126 \lowercaseenumerate % lowercase letter
2127 \else
2128 \uppercaseenumerate % uppercase letter
2131 \else
2132 % Multiple tokens in the argument. We hope it's a number.
2133 \numericenumerate
2137 % An @enumerate whose labels are integers. The starting integer is
2138 % given in \thearg.
2140 \def\numericenumerate{%
2141 \itemno = \thearg
2142 \startenumeration{\the\itemno}%
2145 % The starting (lowercase) letter is in \thearg.
2146 \def\lowercaseenumerate{%
2147 \itemno = \expandafter`\thearg
2148 \startenumeration{%
2149 % Be sure we're not beyond the end of the alphabet.
2150 \ifnum\itemno=0
2151 \errmessage{No more lowercase letters in @enumerate; get a bigger
2152 alphabet}%
2154 \char\lccode\itemno
2158 % The starting (uppercase) letter is in \thearg.
2159 \def\uppercaseenumerate{%
2160 \itemno = \expandafter`\thearg
2161 \startenumeration{%
2162 % Be sure we're not beyond the end of the alphabet.
2163 \ifnum\itemno=0
2164 \errmessage{No more uppercase letters in @enumerate; get a bigger
2165 alphabet}
2167 \char\uccode\itemno
2171 % Call itemizey, adding a period to the first argument and supplying the
2172 % common last two arguments. Also subtract one from the initial value in
2173 % \itemno, since @item increments \itemno.
2175 \def\startenumeration#1{%
2176 \advance\itemno by -1
2177 \itemizey{#1.}\Eenumerate\flushcr
2180 % @alphaenumerate and @capsenumerate are abbreviations for giving an arg
2181 % to @enumerate.
2183 \def\alphaenumerate{\enumerate{a}}
2184 \def\capsenumerate{\enumerate{A}}
2185 \def\Ealphaenumerate{\Eenumerate}
2186 \def\Ecapsenumerate{\Eenumerate}
2188 % Definition of @item while inside @itemize.
2190 \def\itemizeitem{%
2191 \advance\itemno by 1
2192 {\let\par=\endgraf \smallbreak}%
2193 \ifhmode \errmessage{In hmode at itemizeitem}\fi
2194 {\parskip=0in \hskip 0pt
2195 \hbox to 0pt{\hss \itemcontents\hskip \itemmargin}%
2196 \vadjust{\penalty 1200}}%
2197 \flushcr}
2199 % @multitable macros
2200 % Amy Hendrickson, 8/18/94, 3/6/96
2202 % @multitable ... @end multitable will make as many columns as desired.
2203 % Contents of each column will wrap at width given in preamble. Width
2204 % can be specified either with sample text given in a template line,
2205 % or in percent of \hsize, the current width of text on page.
2207 % Table can continue over pages but will only break between lines.
2209 % To make preamble:
2211 % Either define widths of columns in terms of percent of \hsize:
2212 % @multitable @columnfractions .25 .3 .45
2213 % @item ...
2215 % Numbers following @columnfractions are the percent of the total
2216 % current hsize to be used for each column. You may use as many
2217 % columns as desired.
2220 % Or use a template:
2221 % @multitable {Column 1 template} {Column 2 template} {Column 3 template}
2222 % @item ...
2223 % using the widest term desired in each column.
2225 % For those who want to use more than one line's worth of words in
2226 % the preamble, break the line within one argument and it
2227 % will parse correctly, i.e.,
2229 % @multitable {Column 1 template} {Column 2 template} {Column 3
2230 % template}
2231 % Not:
2232 % @multitable {Column 1 template} {Column 2 template}
2233 % {Column 3 template}
2235 % Each new table line starts with @item, each subsequent new column
2236 % starts with @tab. Empty columns may be produced by supplying @tab's
2237 % with nothing between them for as many times as empty columns are needed,
2238 % ie, @tab@tab@tab will produce two empty columns.
2240 % @item, @tab, @multitable or @end multitable do not need to be on their
2241 % own lines, but it will not hurt if they are.
2243 % Sample multitable:
2245 % @multitable {Column 1 template} {Column 2 template} {Column 3 template}
2246 % @item first col stuff @tab second col stuff @tab third col
2247 % @item
2248 % first col stuff
2249 % @tab
2250 % second col stuff
2251 % @tab
2252 % third col
2253 % @item first col stuff @tab second col stuff
2254 % @tab Many paragraphs of text may be used in any column.
2256 % They will wrap at the width determined by the template.
2257 % @item@tab@tab This will be in third column.
2258 % @end multitable
2260 % Default dimensions may be reset by user.
2261 % @multitableparskip is vertical space between paragraphs in table.
2262 % @multitableparindent is paragraph indent in table.
2263 % @multitablecolmargin is horizontal space to be left between columns.
2264 % @multitablelinespace is space to leave between table items, baseline
2265 % to baseline.
2266 % 0pt means it depends on current normal line spacing.
2268 \newskip\multitableparskip
2269 \newskip\multitableparindent
2270 \newdimen\multitablecolspace
2271 \newskip\multitablelinespace
2272 \multitableparskip=0pt
2273 \multitableparindent=6pt
2274 \multitablecolspace=12pt
2275 \multitablelinespace=0pt
2277 % Macros used to set up halign preamble:
2279 \let\endsetuptable\relax
2280 \def\xendsetuptable{\endsetuptable}
2281 \let\columnfractions\relax
2282 \def\xcolumnfractions{\columnfractions}
2283 \newif\ifsetpercent
2285 % #1 is the part of the @columnfraction before the decimal point, which
2286 % is presumably either 0 or the empty string (but we don't check, we
2287 % just throw it away). #2 is the decimal part, which we use as the
2288 % percent of \hsize for this column.
2289 \def\pickupwholefraction#1.#2 {%
2290 \global\advance\colcount by 1
2291 \expandafter\xdef\csname col\the\colcount\endcsname{.#2\hsize}%
2292 \setuptable
2295 \newcount\colcount
2296 \def\setuptable#1{%
2297 \def\firstarg{#1}%
2298 \ifx\firstarg\xendsetuptable
2299 \let\go = \relax
2300 \else
2301 \ifx\firstarg\xcolumnfractions
2302 \global\setpercenttrue
2303 \else
2304 \ifsetpercent
2305 \let\go\pickupwholefraction
2306 \else
2307 \global\advance\colcount by 1
2308 \setbox0=\hbox{#1\unskip\space}% Add a normal word space as a
2309 % separator; typically that is always in the input, anyway.
2310 \expandafter\xdef\csname col\the\colcount\endcsname{\the\wd0}%
2313 \ifx\go\pickupwholefraction
2314 % Put the argument back for the \pickupwholefraction call, so
2315 % we'll always have a period there to be parsed.
2316 \def\go{\pickupwholefraction#1}%
2317 \else
2318 \let\go = \setuptable
2319 \fi%
2324 % @multitable ... @end multitable definitions:
2326 \def\multitable{\parsearg\dotable}
2327 \def\dotable#1{\bgroup
2328 \vskip\parskip
2329 \let\item=\crcrwithfootnotes
2330 % A \tab used to include \hskip1sp. But then the space in a template
2331 % line is not enough. That is bad. So let's go back to just & until
2332 % we encounter the problem it was intended to solve again. --karl,
2333 % nathan@acm.org, 20apr99.
2334 \let\tab=&%
2335 \let\startfootins=\startsavedfootnote
2336 \tolerance=9500
2337 \hbadness=9500
2338 \setmultitablespacing
2339 \parskip=\multitableparskip
2340 \parindent=\multitableparindent
2341 \overfullrule=0pt
2342 \global\colcount=0
2343 \def\Emultitable{%
2344 \global\setpercentfalse
2345 \crcrwithfootnotes\crcr
2346 \egroup\egroup
2349 % To parse everything between @multitable and @item:
2350 \setuptable#1 \endsetuptable
2352 % \everycr will reset column counter, \colcount, at the end of
2353 % each line. Every column entry will cause \colcount to advance by one.
2354 % The table preamble
2355 % looks at the current \colcount to find the correct column width.
2356 \everycr{\noalign{%
2358 % \filbreak%% keeps underfull box messages off when table breaks over pages.
2359 % Maybe so, but it also creates really weird page breaks when the table
2360 % breaks over pages. Wouldn't \vfil be better? Wait until the problem
2361 % manifests itself, so it can be fixed for real --karl.
2362 \global\colcount=0\relax}}%
2364 % This preamble sets up a generic column definition, which will
2365 % be used as many times as user calls for columns.
2366 % \vtop will set a single line and will also let text wrap and
2367 % continue for many paragraphs if desired.
2368 \halign\bgroup&\global\advance\colcount by 1\relax
2369 \multistrut\vtop{\hsize=\expandafter\csname col\the\colcount\endcsname
2371 % In order to keep entries from bumping into each other
2372 % we will add a \leftskip of \multitablecolspace to all columns after
2373 % the first one.
2375 % If a template has been used, we will add \multitablecolspace
2376 % to the width of each template entry.
2378 % If the user has set preamble in terms of percent of \hsize we will
2379 % use that dimension as the width of the column, and the \leftskip
2380 % will keep entries from bumping into each other. Table will start at
2381 % left margin and final column will justify at right margin.
2383 % Make sure we don't inherit \rightskip from the outer environment.
2384 \rightskip=0pt
2385 \ifnum\colcount=1
2386 % The first column will be indented with the surrounding text.
2387 \advance\hsize by\leftskip
2388 \else
2389 \ifsetpercent \else
2390 % If user has not set preamble in terms of percent of \hsize
2391 % we will advance \hsize by \multitablecolspace.
2392 \advance\hsize by \multitablecolspace
2394 % In either case we will make \leftskip=\multitablecolspace:
2395 \leftskip=\multitablecolspace
2397 % Ignoring space at the beginning and end avoids an occasional spurious
2398 % blank line, when TeX decides to break the line at the space before the
2399 % box from the multistrut, so the strut ends up on a line by itself.
2400 % For example:
2401 % @multitable @columnfractions .11 .89
2402 % @item @code{#}
2403 % @tab Legal holiday which is valid in major parts of the whole country.
2404 % Is automatically provided with highlighting sequences respectively marking
2405 % characters.
2406 \noindent\ignorespaces##\unskip\multistrut}\cr
2409 \def\setmultitablespacing{% test to see if user has set \multitablelinespace.
2410 % If so, do nothing. If not, give it an appropriate dimension based on
2411 % current baselineskip.
2412 \ifdim\multitablelinespace=0pt
2413 \setbox0=\vbox{X}\global\multitablelinespace=\the\baselineskip
2414 \global\advance\multitablelinespace by-\ht0
2415 %% strut to put in table in case some entry doesn't have descenders,
2416 %% to keep lines equally spaced
2417 \let\multistrut = \strut
2418 \else
2419 %% FIXME: what is \box0 supposed to be?
2420 \gdef\multistrut{\vrule height\multitablelinespace depth\dp0
2421 width0pt\relax} \fi
2422 %% Test to see if parskip is larger than space between lines of
2423 %% table. If not, do nothing.
2424 %% If so, set to same dimension as multitablelinespace.
2425 \ifdim\multitableparskip>\multitablelinespace
2426 \global\multitableparskip=\multitablelinespace
2427 \global\advance\multitableparskip-7pt %% to keep parskip somewhat smaller
2428 %% than skip between lines in the table.
2429 \fi%
2430 \ifdim\multitableparskip=0pt
2431 \global\multitableparskip=\multitablelinespace
2432 \global\advance\multitableparskip-7pt %% to keep parskip somewhat smaller
2433 %% than skip between lines in the table.
2434 \fi}
2436 % In case a @footnote appears inside an alignment, save the footnote
2437 % text to a box and make the \insert when a row of the table is
2438 % finished. Otherwise, the insertion is lost, it never migrates to the
2439 % main vertical list. --kasal, 22jan03.
2441 \newbox\savedfootnotes
2443 % \dotable \let's \startfootins to this, so that \dofootnote will call
2444 % it instead of starting the insertion right away.
2445 \def\startsavedfootnote{%
2446 \global\setbox\savedfootnotes = \vbox\bgroup
2447 \unvbox\savedfootnotes
2449 \def\crcrwithfootnotes{%
2450 \crcr
2451 \ifvoid\savedfootnotes \else
2452 \noalign{\insert\footins{\box\savedfootnotes}}%
2456 \message{conditionals,}
2457 % Prevent errors for section commands.
2458 % Used in @ignore and in failing conditionals.
2459 \def\ignoresections{%
2460 \let\chapter=\relax
2461 \let\unnumbered=\relax
2462 \let\top=\relax
2463 \let\unnumberedsec=\relax
2464 \let\unnumberedsection=\relax
2465 \let\unnumberedsubsec=\relax
2466 \let\unnumberedsubsection=\relax
2467 \let\unnumberedsubsubsec=\relax
2468 \let\unnumberedsubsubsection=\relax
2469 \let\section=\relax
2470 \let\subsec=\relax
2471 \let\subsubsec=\relax
2472 \let\subsection=\relax
2473 \let\subsubsection=\relax
2474 \let\appendix=\relax
2475 \let\appendixsec=\relax
2476 \let\appendixsection=\relax
2477 \let\appendixsubsec=\relax
2478 \let\appendixsubsection=\relax
2479 \let\appendixsubsubsec=\relax
2480 \let\appendixsubsubsection=\relax
2481 \let\contents=\relax
2482 \let\smallbook=\relax
2483 \let\titlepage=\relax
2486 % Used in nested conditionals, where we have to parse the Texinfo source
2487 % and so want to turn off most commands, in case they are used
2488 % incorrectly.
2490 % We use \empty instead of \relax for the @def... commands, so that \end
2491 % doesn't throw an error. For instance:
2492 % @ignore
2493 % @deffn ...
2494 % @end deffn
2495 % @end ignore
2497 % The @end deffn is going to get expanded, because we're trying to allow
2498 % nested conditionals. But we don't want to expand the actual @deffn,
2499 % since it might be syntactically correct and intended to be ignored.
2500 % Since \end checks for \relax, using \empty does not cause an error.
2502 \def\ignoremorecommands{%
2503 \let\defcodeindex = \relax
2504 \let\defcv = \empty
2505 \let\defcvx = \empty
2506 \let\Edefcv = \empty
2507 \let\deffn = \empty
2508 \let\deffnx = \empty
2509 \let\Edeffn = \empty
2510 \let\defindex = \relax
2511 \let\defivar = \empty
2512 \let\defivarx = \empty
2513 \let\Edefivar = \empty
2514 \let\defmac = \empty
2515 \let\defmacx = \empty
2516 \let\Edefmac = \empty
2517 \let\defmethod = \empty
2518 \let\defmethodx = \empty
2519 \let\Edefmethod = \empty
2520 \let\defop = \empty
2521 \let\defopx = \empty
2522 \let\Edefop = \empty
2523 \let\defopt = \empty
2524 \let\defoptx = \empty
2525 \let\Edefopt = \empty
2526 \let\defspec = \empty
2527 \let\defspecx = \empty
2528 \let\Edefspec = \empty
2529 \let\deftp = \empty
2530 \let\deftpx = \empty
2531 \let\Edeftp = \empty
2532 \let\deftypefn = \empty
2533 \let\deftypefnx = \empty
2534 \let\Edeftypefn = \empty
2535 \let\deftypefun = \empty
2536 \let\deftypefunx = \empty
2537 \let\Edeftypefun = \empty
2538 \let\deftypeivar = \empty
2539 \let\deftypeivarx = \empty
2540 \let\Edeftypeivar = \empty
2541 \let\deftypemethod = \empty
2542 \let\deftypemethodx = \empty
2543 \let\Edeftypemethod = \empty
2544 \let\deftypeop = \empty
2545 \let\deftypeopx = \empty
2546 \let\Edeftypeop = \empty
2547 \let\deftypevar = \empty
2548 \let\deftypevarx = \empty
2549 \let\Edeftypevar = \empty
2550 \let\deftypevr = \empty
2551 \let\deftypevrx = \empty
2552 \let\Edeftypevr = \empty
2553 \let\defun = \empty
2554 \let\defunx = \empty
2555 \let\Edefun = \empty
2556 \let\defvar = \empty
2557 \let\defvarx = \empty
2558 \let\Edefvar = \empty
2559 \let\defvr = \empty
2560 \let\defvrx = \empty
2561 \let\Edefvr = \empty
2562 \let\clear = \relax
2563 \let\down = \relax
2564 \let\evenfooting = \relax
2565 \let\evenheading = \relax
2566 \let\everyfooting = \relax
2567 \let\everyheading = \relax
2568 \let\headings = \relax
2569 \let\include = \relax
2570 \let\item = \relax
2571 \let\lowersections = \relax
2572 \let\oddfooting = \relax
2573 \let\oddheading = \relax
2574 \let\printindex = \relax
2575 \let\pxref = \relax
2576 \let\raisesections = \relax
2577 \let\ref = \relax
2578 \let\set = \relax
2579 \let\setchapternewpage = \relax
2580 \let\setchapterstyle = \relax
2581 \let\settitle = \relax
2582 \let\up = \relax
2583 \let\verbatiminclude = \relax
2584 \let\xref = \relax
2587 % Ignore @ignore, @ifhtml, @ifinfo, and the like.
2589 \def\direntry{\doignore{direntry}}
2590 \def\documentdescriptionword{documentdescription}
2591 \def\documentdescription{\doignore{documentdescription}}
2592 \def\html{\doignore{html}}
2593 \def\ifhtml{\doignore{ifhtml}}
2594 \def\ifinfo{\doignore{ifinfo}}
2595 \def\ifnottex{\doignore{ifnottex}}
2596 \def\ifplaintext{\doignore{ifplaintext}}
2597 \def\ifxml{\doignore{ifxml}}
2598 \def\ignore{\doignore{ignore}}
2599 \def\menu{\doignore{menu}}
2600 \def\xml{\doignore{xml}}
2602 % @dircategory CATEGORY -- specify a category of the dir file
2603 % which this file should belong to. Ignore this in TeX.
2604 \let\dircategory = \comment
2606 % Ignore text until a line `@end #1'.
2608 \def\doignore#1{\begingroup
2609 % Don't complain about control sequences we have declared \outer.
2610 \ignoresections
2612 % Define a command to swallow text until we reach `@end #1'.
2613 % This @ is a catcode 12 token (that is the normal catcode of @ in
2614 % this texinfo.tex file). We change the catcode of @ below to match.
2615 \long\def\doignoretext##1@end #1{\enddoignore}%
2617 % Make sure that spaces turn into tokens that match what \doignoretext wants.
2618 \catcode\spaceChar = 10
2620 % Ignore braces, too, so mismatched braces don't cause trouble.
2621 \catcode`\{ = 9
2622 \catcode`\} = 9
2624 % We must not have @c interpreted as a control sequence.
2625 \catcode`\@ = 12
2627 \def\ignoreword{#1}%
2628 \ifx\ignoreword\documentdescriptionword
2629 % The c kludge breaks documentdescription, since
2630 % `documentdescription' contains a `c'. Means not everything will
2631 % be ignored inside @documentdescription, but oh well...
2632 \else
2633 % Make the letter c a comment character so that the rest of the line
2634 % will be ignored. This way, the document can have (for example)
2635 % @c @end ifinfo
2636 % and the @end ifinfo will be properly ignored.
2637 % (We've just changed @ to catcode 12.)
2638 \catcode`\c = 14
2641 % And now expand the command defined above.
2642 \doignoretext
2645 % What we do to finish off ignored text.
2647 \def\enddoignore{\endgroup\ignorespaces}%
2649 \newif\ifwarnedobs\warnedobsfalse
2650 \def\obstexwarn{%
2651 \ifwarnedobs\relax\else
2652 % We need to warn folks that they may have trouble with TeX 3.0.
2653 % This uses \immediate\write16 rather than \message to get newlines.
2654 \immediate\write16{}
2655 \immediate\write16{WARNING: for users of Unix TeX 3.0!}
2656 \immediate\write16{This manual trips a bug in TeX version 3.0 (tex hangs).}
2657 \immediate\write16{If you are running another version of TeX, relax.}
2658 \immediate\write16{If you are running Unix TeX 3.0, kill this TeX process.}
2659 \immediate\write16{ Then upgrade your TeX installation if you can.}
2660 \immediate\write16{ (See ftp://ftp.gnu.org/non-gnu/TeX.README.)}
2661 \immediate\write16{If you are stuck with version 3.0, run the}
2662 \immediate\write16{ script ``tex3patch'' from the Texinfo distribution}
2663 \immediate\write16{ to use a workaround.}
2664 \immediate\write16{}
2665 \global\warnedobstrue
2669 % **In TeX 3.0, setting text in \nullfont hangs tex. For a
2670 % workaround (which requires the file ``dummy.tfm'' to be installed),
2671 % uncomment the following line:
2672 %%%%%\font\nullfont=dummy\let\obstexwarn=\relax
2674 % Ignore text, except that we keep track of conditional commands for
2675 % purposes of nesting, up to an `@end #1' command.
2677 \def\nestedignore#1{%
2678 \obstexwarn
2679 % We must actually expand the ignored text to look for the @end
2680 % command, so that nested ignore constructs work. Thus, we put the
2681 % text into a \vbox and then do nothing with the result. To minimize
2682 % the chance of memory overflow, we follow the approach outlined on
2683 % page 401 of the TeXbook.
2685 \setbox0 = \vbox\bgroup
2686 % Don't complain about control sequences we have declared \outer.
2687 \ignoresections
2689 % Define `@end #1' to end the box, which will in turn undefine the
2690 % @end command again.
2691 \expandafter\def\csname E#1\endcsname{\egroup\ignorespaces}%
2693 % We are going to be parsing Texinfo commands. Most cause no
2694 % trouble when they are used incorrectly, but some commands do
2695 % complicated argument parsing or otherwise get confused, so we
2696 % undefine them.
2698 % We can't do anything about stray @-signs, unfortunately;
2699 % they'll produce `undefined control sequence' errors.
2700 \ignoremorecommands
2702 % Set the current font to be \nullfont, a TeX primitive, and define
2703 % all the font commands to also use \nullfont. We don't use
2704 % dummy.tfm, as suggested in the TeXbook, because some sites
2705 % might not have that installed. Therefore, math mode will still
2706 % produce output, but that should be an extremely small amount of
2707 % stuff compared to the main input.
2709 \nullfont
2710 \let\tenrm=\nullfont \let\tenit=\nullfont \let\tensl=\nullfont
2711 \let\tenbf=\nullfont \let\tentt=\nullfont \let\smallcaps=\nullfont
2712 \let\tensf=\nullfont
2713 % Similarly for index fonts.
2714 \let\smallrm=\nullfont \let\smallit=\nullfont \let\smallsl=\nullfont
2715 \let\smallbf=\nullfont \let\smalltt=\nullfont \let\smallsc=\nullfont
2716 \let\smallsf=\nullfont
2717 % Similarly for smallexample fonts.
2718 \let\smallerrm=\nullfont \let\smallerit=\nullfont \let\smallersl=\nullfont
2719 \let\smallerbf=\nullfont \let\smallertt=\nullfont \let\smallersc=\nullfont
2720 \let\smallersf=\nullfont
2722 % Don't complain when characters are missing from the fonts.
2723 \tracinglostchars = 0
2725 % Don't bother to do space factor calculations.
2726 \frenchspacing
2728 % Don't report underfull hboxes.
2729 \hbadness = 10000
2731 % Do minimal line-breaking.
2732 \pretolerance = 10000
2734 % Do not execute instructions in @tex.
2735 \def\tex{\doignore{tex}}%
2736 % Do not execute macro definitions.
2737 % `c' is a comment character, so the word `macro' will get cut off.
2738 \def\macro{\doignore{ma}}%
2741 % @set VAR sets the variable VAR to an empty value.
2742 % @set VAR REST-OF-LINE sets VAR to the value REST-OF-LINE.
2744 % Since we want to separate VAR from REST-OF-LINE (which might be
2745 % empty), we can't just use \parsearg; we have to insert a space of our
2746 % own to delimit the rest of the line, and then take it out again if we
2747 % didn't need it. Make sure the catcode of space is correct to avoid
2748 % losing inside @example, for instance.
2750 \def\set{\begingroup\catcode` =10
2751 \catcode`\-=12 \catcode`\_=12 % Allow - and _ in VAR.
2752 \parsearg\setxxx}
2753 \def\setxxx#1{\setyyy#1 \endsetyyy}
2754 \def\setyyy#1 #2\endsetyyy{%
2755 \def\temp{#2}%
2756 \ifx\temp\empty \global\expandafter\let\csname SET#1\endcsname = \empty
2757 \else \setzzz{#1}#2\endsetzzz % Remove the trailing space \setxxx inserted.
2759 \endgroup
2761 % Can't use \xdef to pre-expand #2 and save some time, since \temp or
2762 % \next or other control sequences that we've defined might get us into
2763 % an infinite loop. Consider `@set foo @cite{bar}'.
2764 \def\setzzz#1#2 \endsetzzz{\expandafter\gdef\csname SET#1\endcsname{#2}}
2766 % @clear VAR clears (i.e., unsets) the variable VAR.
2768 \def\clear{\parsearg\clearxxx}
2769 \def\clearxxx#1{\global\expandafter\let\csname SET#1\endcsname=\relax}
2771 % @value{foo} gets the text saved in variable foo.
2773 \catcode`\_ = \active
2775 % We might end up with active _ or - characters in the argument if
2776 % we're called from @code, as @code{@value{foo-bar_}}. So \let any
2777 % such active characters to their normal equivalents.
2778 \gdef\value{\begingroup
2779 \catcode`\-=\other \catcode`\_=\other
2780 \indexbreaks \let_\normalunderscore
2781 \valuexxx}
2783 \def\valuexxx#1{\expandablevalue{#1}\endgroup}
2785 % We have this subroutine so that we can handle at least some @value's
2786 % properly in indexes (we \let\value to this in \indexdummies). Ones
2787 % whose names contain - or _ still won't work, but we can't do anything
2788 % about that. The command has to be fully expandable (if the variable
2789 % is set), since the result winds up in the index file. This means that
2790 % if the variable's value contains other Texinfo commands, it's almost
2791 % certain it will fail (although perhaps we could fix that with
2792 % sufficient work to do a one-level expansion on the result, instead of
2793 % complete).
2795 \def\expandablevalue#1{%
2796 \expandafter\ifx\csname SET#1\endcsname\relax
2797 {[No value for ``#1'']}%
2798 \message{Variable `#1', used in @value, is not set.}%
2799 \else
2800 \csname SET#1\endcsname
2804 % @ifset VAR ... @end ifset reads the `...' iff VAR has been defined
2805 % with @set.
2807 \def\ifset{\parsearg\doifset}
2808 \def\doifset#1{%
2809 \expandafter\ifx\csname SET#1\endcsname\relax
2810 \let\next=\ifsetfail
2811 \else
2812 \let\next=\ifsetsucceed
2814 \next
2816 \def\ifsetsucceed{\conditionalsucceed{ifset}}
2817 \def\ifsetfail{\nestedignore{ifset}}
2818 \defineunmatchedend{ifset}
2820 % @ifclear VAR ... @end ifclear reads the `...' iff VAR has never been
2821 % defined with @set, or has been undefined with @clear.
2823 \def\ifclear{\parsearg\doifclear}
2824 \def\doifclear#1{%
2825 \expandafter\ifx\csname SET#1\endcsname\relax
2826 \let\next=\ifclearsucceed
2827 \else
2828 \let\next=\ifclearfail
2830 \next
2832 \def\ifclearsucceed{\conditionalsucceed{ifclear}}
2833 \def\ifclearfail{\nestedignore{ifclear}}
2834 \defineunmatchedend{ifclear}
2836 % @iftex, @ifnothtml, @ifnotinfo, @ifnotplaintext always succeed; we
2837 % read the text following, through the first @end iftex (etc.). Make
2838 % `@end iftex' (etc.) valid only after an @iftex.
2840 \def\iftex{\conditionalsucceed{iftex}}
2841 \def\ifnothtml{\conditionalsucceed{ifnothtml}}
2842 \def\ifnotinfo{\conditionalsucceed{ifnotinfo}}
2843 \def\ifnotplaintext{\conditionalsucceed{ifnotplaintext}}
2844 \defineunmatchedend{iftex}
2845 \defineunmatchedend{ifnothtml}
2846 \defineunmatchedend{ifnotinfo}
2847 \defineunmatchedend{ifnotplaintext}
2849 % True conditional. Since \set globally defines its variables, we can
2850 % just start and end a group (to keep the @end definition undefined at
2851 % the outer level).
2853 \def\conditionalsucceed#1{\begingroup
2854 \expandafter\def\csname E#1\endcsname{\endgroup}%
2857 % @defininfoenclose.
2858 \let\definfoenclose=\comment
2861 \message{indexing,}
2862 % Index generation facilities
2864 % Define \newwrite to be identical to plain tex's \newwrite
2865 % except not \outer, so it can be used within \newindex.
2866 {\catcode`\@=11
2867 \gdef\newwrite{\alloc@7\write\chardef\sixt@@n}}
2869 % \newindex {foo} defines an index named foo.
2870 % It automatically defines \fooindex such that
2871 % \fooindex ...rest of line... puts an entry in the index foo.
2872 % It also defines \fooindfile to be the number of the output channel for
2873 % the file that accumulates this index. The file's extension is foo.
2874 % The name of an index should be no more than 2 characters long
2875 % for the sake of vms.
2877 \def\newindex#1{%
2878 \iflinks
2879 \expandafter\newwrite \csname#1indfile\endcsname
2880 \openout \csname#1indfile\endcsname \jobname.#1 % Open the file
2882 \expandafter\xdef\csname#1index\endcsname{% % Define @#1index
2883 \noexpand\doindex{#1}}
2886 % @defindex foo == \newindex{foo}
2888 \def\defindex{\parsearg\newindex}
2890 % Define @defcodeindex, like @defindex except put all entries in @code.
2892 \def\defcodeindex{\parsearg\newcodeindex}
2894 \def\newcodeindex#1{%
2895 \iflinks
2896 \expandafter\newwrite \csname#1indfile\endcsname
2897 \openout \csname#1indfile\endcsname \jobname.#1
2899 \expandafter\xdef\csname#1index\endcsname{%
2900 \noexpand\docodeindex{#1}}%
2904 % @synindex foo bar makes index foo feed into index bar.
2905 % Do this instead of @defindex foo if you don't want it as a separate index.
2907 % @syncodeindex foo bar similar, but put all entries made for index foo
2908 % inside @code.
2910 \def\synindex#1 #2 {\dosynindex\doindex{#1}{#2}}
2911 \def\syncodeindex#1 #2 {\dosynindex\docodeindex{#1}{#2}}
2913 % #1 is \doindex or \docodeindex, #2 the index getting redefined (foo),
2914 % #3 the target index (bar).
2915 \def\dosynindex#1#2#3{%
2916 % Only do \closeout if we haven't already done it, else we'll end up
2917 % closing the target index.
2918 \expandafter \ifx\csname donesynindex#2\endcsname \undefined
2919 % The \closeout helps reduce unnecessary open files; the limit on the
2920 % Acorn RISC OS is a mere 16 files.
2921 \expandafter\closeout\csname#2indfile\endcsname
2922 \expandafter\let\csname\donesynindex#2\endcsname = 1
2924 % redefine \fooindfile:
2925 \expandafter\let\expandafter\temp\expandafter=\csname#3indfile\endcsname
2926 \expandafter\let\csname#2indfile\endcsname=\temp
2927 % redefine \fooindex:
2928 \expandafter\xdef\csname#2index\endcsname{\noexpand#1{#3}}%
2931 % Define \doindex, the driver for all \fooindex macros.
2932 % Argument #1 is generated by the calling \fooindex macro,
2933 % and it is "foo", the name of the index.
2935 % \doindex just uses \parsearg; it calls \doind for the actual work.
2936 % This is because \doind is more useful to call from other macros.
2938 % There is also \dosubind {index}{topic}{subtopic}
2939 % which makes an entry in a two-level index such as the operation index.
2941 \def\doindex#1{\edef\indexname{#1}\parsearg\singleindexer}
2942 \def\singleindexer #1{\doind{\indexname}{#1}}
2944 % like the previous two, but they put @code around the argument.
2945 \def\docodeindex#1{\edef\indexname{#1}\parsearg\singlecodeindexer}
2946 \def\singlecodeindexer #1{\doind{\indexname}{\code{#1}}}
2948 % Take care of Texinfo commands that can appear in an index entry.
2949 % Since there are some commands we want to expand, and others we don't,
2950 % we have to laboriously prevent expansion for those that we don't.
2952 \def\indexdummies{%
2953 \def\@{@}% change to @@ when we switch to @ as escape char in index files.
2954 \def\ {\realbackslash\space }%
2955 % Need these in case \tex is in effect and \{ is a \delimiter again.
2956 % But can't use \lbracecmd and \rbracecmd because texindex assumes
2957 % braces and backslashes are used only as delimiters.
2958 \let\{ = \mylbrace
2959 \let\} = \myrbrace
2961 % \definedummyword defines \#1 as \realbackslash #1\space, thus
2962 % effectively preventing its expansion. This is used only for control
2963 % words, not control letters, because the \space would be incorrect
2964 % for control characters, but is needed to separate the control word
2965 % from whatever follows.
2967 % For control letters, we have \definedummyletter, which omits the
2968 % space.
2970 % These can be used both for control words that take an argument and
2971 % those that do not. If it is followed by {arg} in the input, then
2972 % that will dutifully get written to the index (or wherever).
2974 \def\definedummyword##1{%
2975 \expandafter\def\csname ##1\endcsname{\realbackslash ##1\space}%
2977 \def\definedummyletter##1{%
2978 \expandafter\def\csname ##1\endcsname{\realbackslash ##1}%
2981 % Do the redefinitions.
2982 \commondummies
2985 % For the aux file, @ is the escape character. So we want to redefine
2986 % everything using @ instead of \realbackslash. When everything uses
2987 % @, this will be simpler.
2989 \def\atdummies{%
2990 \def\@{@@}%
2991 \def\ {@ }%
2992 \let\{ = \lbraceatcmd
2993 \let\} = \rbraceatcmd
2995 % (See comments in \indexdummies.)
2996 \def\definedummyword##1{%
2997 \expandafter\def\csname ##1\endcsname{@##1\space}%
2999 \def\definedummyletter##1{%
3000 \expandafter\def\csname ##1\endcsname{@##1}%
3003 % Do the redefinitions.
3004 \commondummies
3007 % Called from \indexdummies and \atdummies. \definedummyword and
3008 % \definedummyletter must be defined first.
3010 \def\commondummies{%
3012 \normalturnoffactive
3014 % Control letters and accents.
3015 \definedummyletter{_}%
3016 \definedummyletter{,}%
3017 \definedummyletter{"}%
3018 \definedummyletter{`}%
3019 \definedummyletter{'}%
3020 \definedummyletter{^}%
3021 \definedummyletter{~}%
3022 \definedummyletter{=}%
3023 \definedummyword{u}%
3024 \definedummyword{v}%
3025 \definedummyword{H}%
3026 \definedummyword{dotaccent}%
3027 \definedummyword{ringaccent}%
3028 \definedummyword{tieaccent}%
3029 \definedummyword{ubaraccent}%
3030 \definedummyword{udotaccent}%
3031 \definedummyword{dotless}%
3033 % Other non-English letters.
3034 \definedummyword{AA}%
3035 \definedummyword{AE}%
3036 \definedummyword{L}%
3037 \definedummyword{OE}%
3038 \definedummyword{O}%
3039 \definedummyword{aa}%
3040 \definedummyword{ae}%
3041 \definedummyword{l}%
3042 \definedummyword{oe}%
3043 \definedummyword{o}%
3044 \definedummyword{ss}%
3046 % Although these internal commands shouldn't show up, sometimes they do.
3047 \definedummyword{bf}%
3048 \definedummyword{gtr}%
3049 \definedummyword{hat}%
3050 \definedummyword{less}%
3051 \definedummyword{sf}%
3052 \definedummyword{sl}%
3053 \definedummyword{tclose}%
3054 \definedummyword{tt}%
3056 % Texinfo font commands.
3057 \definedummyword{b}%
3058 \definedummyword{i}%
3059 \definedummyword{r}%
3060 \definedummyword{sc}%
3061 \definedummyword{t}%
3063 \definedummyword{TeX}%
3064 \definedummyword{acronym}%
3065 \definedummyword{cite}%
3066 \definedummyword{code}%
3067 \definedummyword{command}%
3068 \definedummyword{dfn}%
3069 \definedummyword{dots}%
3070 \definedummyword{emph}%
3071 \definedummyword{env}%
3072 \definedummyword{file}%
3073 \definedummyword{kbd}%
3074 \definedummyword{key}%
3075 \definedummyword{math}%
3076 \definedummyword{option}%
3077 \definedummyword{samp}%
3078 \definedummyword{strong}%
3079 \definedummyword{uref}%
3080 \definedummyword{url}%
3081 \definedummyword{var}%
3082 \definedummyword{w}%
3084 % Assorted special characters.
3085 \definedummyword{bullet}%
3086 \definedummyword{copyright}%
3087 \definedummyword{dots}%
3088 \definedummyword{enddots}%
3089 \definedummyword{equiv}%
3090 \definedummyword{error}%
3091 \definedummyword{expansion}%
3092 \definedummyword{minus}%
3093 \definedummyword{pounds}%
3094 \definedummyword{point}%
3095 \definedummyword{print}%
3096 \definedummyword{result}%
3098 % Handle some cases of @value -- where the variable name does not
3099 % contain - or _, and the value does not contain any
3100 % (non-fully-expandable) commands.
3101 \let\value = \expandablevalue
3103 % Normal spaces, not active ones.
3104 \unsepspaces
3106 % No macro expansion.
3107 \turnoffmacros
3110 % If an index command is used in an @example environment, any spaces
3111 % therein should become regular spaces in the raw index file, not the
3112 % expansion of \tie (\leavevmode \penalty \@M \ ).
3113 {\obeyspaces
3114 \gdef\unsepspaces{\obeyspaces\let =\space}}
3117 % \indexnofonts is used when outputting the strings to sort the index
3118 % by, and when constructing control sequence names. It eliminates all
3119 % control sequences and just writes whatever the best ASCII sort string
3120 % would be for a given command (usually its argument).
3122 \def\indexdummytex{TeX}
3123 \def\indexdummydots{...}
3125 \def\indexnofonts{%
3126 \def\ { }%
3127 \def\@{@}%
3128 % how to handle braces?
3129 \def\_{\normalunderscore}%
3131 \let\,=\asis
3132 \let\"=\asis
3133 \let\`=\asis
3134 \let\'=\asis
3135 \let\^=\asis
3136 \let\~=\asis
3137 \let\==\asis
3138 \let\u=\asis
3139 \let\v=\asis
3140 \let\H=\asis
3141 \let\dotaccent=\asis
3142 \let\ringaccent=\asis
3143 \let\tieaccent=\asis
3144 \let\ubaraccent=\asis
3145 \let\udotaccent=\asis
3146 \let\dotless=\asis
3148 % Other non-English letters.
3149 \def\AA{AA}%
3150 \def\AE{AE}%
3151 \def\L{L}%
3152 \def\OE{OE}%
3153 \def\O{O}%
3154 \def\aa{aa}%
3155 \def\ae{ae}%
3156 \def\l{l}%
3157 \def\oe{oe}%
3158 \def\o{o}%
3159 \def\ss{ss}%
3160 \def\exclamdown{!}%
3161 \def\questiondown{?}%
3163 % Don't no-op \tt, since it isn't a user-level command
3164 % and is used in the definitions of the active chars like <, >, |, etc.
3165 % Likewise with the other plain tex font commands.
3166 %\let\tt=\asis
3168 % Texinfo font commands.
3169 \let\b=\asis
3170 \let\i=\asis
3171 \let\r=\asis
3172 \let\sc=\asis
3173 \let\t=\asis
3175 \let\TeX=\indexdummytex
3176 \let\acronym=\asis
3177 \let\cite=\asis
3178 \let\code=\asis
3179 \let\command=\asis
3180 \let\dfn=\asis
3181 \let\dots=\indexdummydots
3182 \let\emph=\asis
3183 \let\env=\asis
3184 \let\file=\asis
3185 \let\kbd=\asis
3186 \let\key=\asis
3187 \let\math=\asis
3188 \let\option=\asis
3189 \let\samp=\asis
3190 \let\strong=\asis
3191 \let\uref=\asis
3192 \let\url=\asis
3193 \let\var=\asis
3194 \let\w=\asis
3197 \let\indexbackslash=0 %overridden during \printindex.
3198 \let\SETmarginindex=\relax % put index entries in margin (undocumented)?
3200 % For \ifx comparisons.
3201 \def\emptymacro{\empty}
3203 % Most index entries go through here, but \dosubind is the general case.
3205 \def\doind#1#2{\dosubind{#1}{#2}\empty}
3207 % Workhorse for all \fooindexes.
3208 % #1 is name of index, #2 is stuff to put there, #3 is subentry --
3209 % \empty if called from \doind, as we usually are. The main exception
3210 % is with defuns, which call us directly.
3212 \def\dosubind#1#2#3{%
3213 % Put the index entry in the margin if desired.
3214 \ifx\SETmarginindex\relax\else
3215 \insert\margin{\hbox{\vrule height8pt depth3pt width0pt #2}}%
3218 \count255=\lastpenalty
3220 \indexdummies % Must do this here, since \bf, etc expand at this stage
3221 \escapechar=`\\
3223 \let\folio = 0% We will expand all macros now EXCEPT \folio.
3224 \def\rawbackslashxx{\indexbackslash}% \indexbackslash isn't defined now
3225 % so it will be output as is; and it will print as backslash.
3227 % The main index entry text.
3228 \toks0 = {#2}%
3230 % If third arg is present, precede it with space in sort key.
3231 \def\thirdarg{#3}%
3232 \ifx\thirdarg\emptymacro \else
3233 % If the third (subentry) arg is present, add it to the index
3234 % line to write.
3235 \toks0 = \expandafter{\the\toks0 \space #3}%
3238 % Process the index entry with all font commands turned off, to
3239 % get the string to sort by.
3240 {\indexnofonts
3241 \edef\temp{\the\toks0}% need full expansion
3242 \xdef\indexsorttmp{\temp}%
3245 % Set up the complete index entry, with both the sort key and
3246 % the original text, including any font commands. We write
3247 % three arguments to \entry to the .?? file (four in the
3248 % subentry case), texindex reduces to two when writing the .??s
3249 % sorted result.
3250 \edef\temp{%
3251 \write\csname#1indfile\endcsname{%
3252 \realbackslash entry{\indexsorttmp}{\folio}{\the\toks0}}%
3255 % If a skip is the last thing on the list now, preserve it
3256 % by backing up by \lastskip, doing the \write, then inserting
3257 % the skip again. Otherwise, the whatsit generated by the
3258 % \write will make \lastskip zero. The result is that sequences
3259 % like this:
3260 % @end defun
3261 % @tindex whatever
3262 % @defun ...
3263 % will have extra space inserted, because the \medbreak in the
3264 % start of the @defun won't see the skip inserted by the @end of
3265 % the previous defun.
3267 % But don't do any of this if we're not in vertical mode. We
3268 % don't want to do a \vskip and prematurely end a paragraph.
3270 % Avoid page breaks due to these extra skips, too.
3272 \iflinks
3273 \ifvmode
3274 \skip0 = \lastskip
3275 \ifdim\lastskip = 0pt \else \nobreak\vskip-\skip0 \fi
3278 \temp % do the write
3280 \ifvmode \ifdim\skip0 = 0pt \else \nobreak\vskip\skip0 \fi \fi
3284 \penalty\count255
3288 % The index entry written in the file actually looks like
3289 % \entry {sortstring}{page}{topic}
3290 % or
3291 % \entry {sortstring}{page}{topic}{subtopic}
3292 % The texindex program reads in these files and writes files
3293 % containing these kinds of lines:
3294 % \initial {c}
3295 % before the first topic whose initial is c
3296 % \entry {topic}{pagelist}
3297 % for a topic that is used without subtopics
3298 % \primary {topic}
3299 % for the beginning of a topic that is used with subtopics
3300 % \secondary {subtopic}{pagelist}
3301 % for each subtopic.
3303 % Define the user-accessible indexing commands
3304 % @findex, @vindex, @kindex, @cindex.
3306 \def\findex {\fnindex}
3307 \def\kindex {\kyindex}
3308 \def\cindex {\cpindex}
3309 \def\vindex {\vrindex}
3310 \def\tindex {\tpindex}
3311 \def\pindex {\pgindex}
3313 \def\cindexsub {\begingroup\obeylines\cindexsub}
3314 {\obeylines %
3315 \gdef\cindexsub "#1" #2^^M{\endgroup %
3316 \dosubind{cp}{#2}{#1}}}
3318 % Define the macros used in formatting output of the sorted index material.
3320 % @printindex causes a particular index (the ??s file) to get printed.
3321 % It does not print any chapter heading (usually an @unnumbered).
3323 \def\printindex{\parsearg\doprintindex}
3324 \def\doprintindex#1{\begingroup
3325 \dobreak \chapheadingskip{10000}%
3327 \smallfonts \rm
3328 \tolerance = 9500
3329 \indexbreaks
3331 % See if the index file exists and is nonempty.
3332 % Change catcode of @ here so that if the index file contains
3333 % \initial {@}
3334 % as its first line, TeX doesn't complain about mismatched braces
3335 % (because it thinks @} is a control sequence).
3336 \catcode`\@ = 11
3337 \openin 1 \jobname.#1s
3338 \ifeof 1
3339 % \enddoublecolumns gets confused if there is no text in the index,
3340 % and it loses the chapter title and the aux file entries for the
3341 % index. The easiest way to prevent this problem is to make sure
3342 % there is some text.
3343 \putwordIndexNonexistent
3344 \else
3346 % If the index file exists but is empty, then \openin leaves \ifeof
3347 % false. We have to make TeX try to read something from the file, so
3348 % it can discover if there is anything in it.
3349 \read 1 to \temp
3350 \ifeof 1
3351 \putwordIndexIsEmpty
3352 \else
3353 % Index files are almost Texinfo source, but we use \ as the escape
3354 % character. It would be better to use @, but that's too big a change
3355 % to make right now.
3356 \def\indexbackslash{\rawbackslashxx}%
3357 \catcode`\\ = 0
3358 \escapechar = `\\
3359 \begindoublecolumns
3360 \input \jobname.#1s
3361 \enddoublecolumns
3364 \closein 1
3365 \endgroup}
3367 % These macros are used by the sorted index file itself.
3368 % Change them to control the appearance of the index.
3370 \def\initial#1{{%
3371 % Some minor font changes for the special characters.
3372 \let\tentt=\sectt \let\tt=\sectt \let\sf=\sectt
3374 % Remove any glue we may have, we'll be inserting our own.
3375 \removelastskip
3377 % We like breaks before the index initials, so insert a bonus.
3378 \penalty -300
3380 % Typeset the initial. Making this add up to a whole number of
3381 % baselineskips increases the chance of the dots lining up from column
3382 % to column. It still won't often be perfect, because of the stretch
3383 % we need before each entry, but it's better.
3385 % No shrink because it confuses \balancecolumns.
3386 \vskip 1.67\baselineskip plus .5\baselineskip
3387 \leftline{\secbf #1}%
3388 \vskip .33\baselineskip plus .1\baselineskip
3390 % Do our best not to break after the initial.
3391 \nobreak
3394 % This typesets a paragraph consisting of #1, dot leaders, and then #2
3395 % flush to the right margin. It is used for index and table of contents
3396 % entries. The paragraph is indented by \leftskip.
3398 \def\entry#1#2{\begingroup
3400 % Start a new paragraph if necessary, so our assignments below can't
3401 % affect previous text.
3402 \par
3404 % Do not fill out the last line with white space.
3405 \parfillskip = 0in
3407 % No extra space above this paragraph.
3408 \parskip = 0in
3410 % Do not prefer a separate line ending with a hyphen to fewer lines.
3411 \finalhyphendemerits = 0
3413 % \hangindent is only relevant when the entry text and page number
3414 % don't both fit on one line. In that case, bob suggests starting the
3415 % dots pretty far over on the line. Unfortunately, a large
3416 % indentation looks wrong when the entry text itself is broken across
3417 % lines. So we use a small indentation and put up with long leaders.
3419 % \hangafter is reset to 1 (which is the value we want) at the start
3420 % of each paragraph, so we need not do anything with that.
3421 \hangindent = 2em
3423 % When the entry text needs to be broken, just fill out the first line
3424 % with blank space.
3425 \rightskip = 0pt plus1fil
3427 % A bit of stretch before each entry for the benefit of balancing columns.
3428 \vskip 0pt plus1pt
3430 % Start a ``paragraph'' for the index entry so the line breaking
3431 % parameters we've set above will have an effect.
3432 \noindent
3434 % Insert the text of the index entry. TeX will do line-breaking on it.
3436 % The following is kludged to not output a line of dots in the index if
3437 % there are no page numbers. The next person who breaks this will be
3438 % cursed by a Unix daemon.
3439 \def\tempa{{\rm }}%
3440 \def\tempb{#2}%
3441 \edef\tempc{\tempa}%
3442 \edef\tempd{\tempb}%
3443 \ifx\tempc\tempd\ \else%
3445 % If we must, put the page number on a line of its own, and fill out
3446 % this line with blank space. (The \hfil is overwhelmed with the
3447 % fill leaders glue in \indexdotfill if the page number does fit.)
3448 \hfil\penalty50
3449 \null\nobreak\indexdotfill % Have leaders before the page number.
3451 % The `\ ' here is removed by the implicit \unskip that TeX does as
3452 % part of (the primitive) \par. Without it, a spurious underfull
3453 % \hbox ensues.
3454 \ifpdf
3455 \pdfgettoks#2.\ \the\toksA % The page number ends the paragraph.
3456 \else
3457 \ #2% The page number ends the paragraph.
3459 \fi%
3460 \par
3461 \endgroup}
3463 % Like \dotfill except takes at least 1 em.
3464 \def\indexdotfill{\cleaders
3465 \hbox{$\mathsurround=0pt \mkern1.5mu ${\it .}$ \mkern1.5mu$}\hskip 1em plus 1fill}
3467 \def\primary #1{\line{#1\hfil}}
3469 \newskip\secondaryindent \secondaryindent=0.5cm
3470 \def\secondary#1#2{{%
3471 \parfillskip=0in
3472 \parskip=0in
3473 \hangindent=1in
3474 \hangafter=1
3475 \noindent\hskip\secondaryindent\hbox{#1}\indexdotfill
3476 \ifpdf
3477 \pdfgettoks#2.\ \the\toksA % The page number ends the paragraph.
3478 \else
3481 \par
3484 % Define two-column mode, which we use to typeset indexes.
3485 % Adapted from the TeXbook, page 416, which is to say,
3486 % the manmac.tex format used to print the TeXbook itself.
3487 \catcode`\@=11
3489 \newbox\partialpage
3490 \newdimen\doublecolumnhsize
3492 \def\begindoublecolumns{\begingroup % ended by \enddoublecolumns
3493 % Grab any single-column material above us.
3494 \output = {%
3496 % Here is a possibility not foreseen in manmac: if we accumulate a
3497 % whole lot of material, we might end up calling this \output
3498 % routine twice in a row (see the doublecol-lose test, which is
3499 % essentially a couple of indexes with @setchapternewpage off). In
3500 % that case we just ship out what is in \partialpage with the normal
3501 % output routine. Generally, \partialpage will be empty when this
3502 % runs and this will be a no-op. See the indexspread.tex test case.
3503 \ifvoid\partialpage \else
3504 \onepageout{\pagecontents\partialpage}%
3507 \global\setbox\partialpage = \vbox{%
3508 % Unvbox the main output page.
3509 \unvbox\PAGE
3510 \kern-\topskip \kern\baselineskip
3513 \eject % run that output routine to set \partialpage
3515 % Use the double-column output routine for subsequent pages.
3516 \output = {\doublecolumnout}%
3518 % Change the page size parameters. We could do this once outside this
3519 % routine, in each of @smallbook, @afourpaper, and the default 8.5x11
3520 % format, but then we repeat the same computation. Repeating a couple
3521 % of assignments once per index is clearly meaningless for the
3522 % execution time, so we may as well do it in one place.
3524 % First we halve the line length, less a little for the gutter between
3525 % the columns. We compute the gutter based on the line length, so it
3526 % changes automatically with the paper format. The magic constant
3527 % below is chosen so that the gutter has the same value (well, +-<1pt)
3528 % as it did when we hard-coded it.
3530 % We put the result in a separate register, \doublecolumhsize, so we
3531 % can restore it in \pagesofar, after \hsize itself has (potentially)
3532 % been clobbered.
3534 \doublecolumnhsize = \hsize
3535 \advance\doublecolumnhsize by -.04154\hsize
3536 \divide\doublecolumnhsize by 2
3537 \hsize = \doublecolumnhsize
3539 % Double the \vsize as well. (We don't need a separate register here,
3540 % since nobody clobbers \vsize.)
3541 \vsize = 2\vsize
3544 % The double-column output routine for all double-column pages except
3545 % the last.
3547 \def\doublecolumnout{%
3548 \splittopskip=\topskip \splitmaxdepth=\maxdepth
3549 % Get the available space for the double columns -- the normal
3550 % (undoubled) page height minus any material left over from the
3551 % previous page.
3552 \dimen@ = \vsize
3553 \divide\dimen@ by 2
3554 \advance\dimen@ by -\ht\partialpage
3556 % box0 will be the left-hand column, box2 the right.
3557 \setbox0=\vsplit255 to\dimen@ \setbox2=\vsplit255 to\dimen@
3558 \onepageout\pagesofar
3559 \unvbox255
3560 \penalty\outputpenalty
3563 % Re-output the contents of the output page -- any previous material,
3564 % followed by the two boxes we just split, in box0 and box2.
3565 \def\pagesofar{%
3566 \unvbox\partialpage
3568 \hsize = \doublecolumnhsize
3569 \wd0=\hsize \wd2=\hsize
3570 \hbox to\pagewidth{\box0\hfil\box2}%
3573 % All done with double columns.
3574 \def\enddoublecolumns{%
3575 \output = {%
3576 % Split the last of the double-column material. Leave it on the
3577 % current page, no automatic page break.
3578 \balancecolumns
3580 % If we end up splitting too much material for the current page,
3581 % though, there will be another page break right after this \output
3582 % invocation ends. Having called \balancecolumns once, we do not
3583 % want to call it again. Therefore, reset \output to its normal
3584 % definition right away. (We hope \balancecolumns will never be
3585 % called on to balance too much material, but if it is, this makes
3586 % the output somewhat more palatable.)
3587 \global\output = {\onepageout{\pagecontents\PAGE}}%
3589 \eject
3590 \endgroup % started in \begindoublecolumns
3592 % \pagegoal was set to the doubled \vsize above, since we restarted
3593 % the current page. We're now back to normal single-column
3594 % typesetting, so reset \pagegoal to the normal \vsize (after the
3595 % \endgroup where \vsize got restored).
3596 \pagegoal = \vsize
3599 % Called at the end of the double column material.
3600 \def\balancecolumns{%
3601 \setbox0 = \vbox{\unvbox255}% like \box255 but more efficient, see p.120.
3602 \dimen@ = \ht0
3603 \advance\dimen@ by \topskip
3604 \advance\dimen@ by-\baselineskip
3605 \divide\dimen@ by 2 % target to split to
3606 %debug\message{final 2-column material height=\the\ht0, target=\the\dimen@.}%
3607 \splittopskip = \topskip
3608 % Loop until we get a decent breakpoint.
3610 \vbadness = 10000
3611 \loop
3612 \global\setbox3 = \copy0
3613 \global\setbox1 = \vsplit3 to \dimen@
3614 \ifdim\ht3>\dimen@
3615 \global\advance\dimen@ by 1pt
3616 \repeat
3618 %debug\message{split to \the\dimen@, column heights: \the\ht1, \the\ht3.}%
3619 \setbox0=\vbox to\dimen@{\unvbox1}%
3620 \setbox2=\vbox to\dimen@{\unvbox3}%
3622 \pagesofar
3624 \catcode`\@ = \other
3627 \message{sectioning,}
3628 % Chapters, sections, etc.
3630 \newcount\chapno
3631 \newcount\secno \secno=0
3632 \newcount\subsecno \subsecno=0
3633 \newcount\subsubsecno \subsubsecno=0
3635 % This counter is funny since it counts through charcodes of letters A, B, ...
3636 \newcount\appendixno \appendixno = `\@
3637 % \def\appendixletter{\char\the\appendixno}
3638 % We do the following for the sake of pdftex, which needs the actual
3639 % letter in the expansion, not just typeset.
3640 \def\appendixletter{%
3641 \ifnum\appendixno=`A A%
3642 \else\ifnum\appendixno=`B B%
3643 \else\ifnum\appendixno=`C C%
3644 \else\ifnum\appendixno=`D D%
3645 \else\ifnum\appendixno=`E E%
3646 \else\ifnum\appendixno=`F F%
3647 \else\ifnum\appendixno=`G G%
3648 \else\ifnum\appendixno=`H H%
3649 \else\ifnum\appendixno=`I I%
3650 \else\ifnum\appendixno=`J J%
3651 \else\ifnum\appendixno=`K K%
3652 \else\ifnum\appendixno=`L L%
3653 \else\ifnum\appendixno=`M M%
3654 \else\ifnum\appendixno=`N N%
3655 \else\ifnum\appendixno=`O O%
3656 \else\ifnum\appendixno=`P P%
3657 \else\ifnum\appendixno=`Q Q%
3658 \else\ifnum\appendixno=`R R%
3659 \else\ifnum\appendixno=`S S%
3660 \else\ifnum\appendixno=`T T%
3661 \else\ifnum\appendixno=`U U%
3662 \else\ifnum\appendixno=`V V%
3663 \else\ifnum\appendixno=`W W%
3664 \else\ifnum\appendixno=`X X%
3665 \else\ifnum\appendixno=`Y Y%
3666 \else\ifnum\appendixno=`Z Z%
3667 % The \the is necessary, despite appearances, because \appendixletter is
3668 % expanded while writing the .toc file. \char\appendixno is not
3669 % expandable, thus it is written literally, thus all appendixes come out
3670 % with the same letter (or @) in the toc without it.
3671 \else\char\the\appendixno
3672 \fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi
3673 \fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi}
3675 % Each @chapter defines this as the name of the chapter.
3676 % page headings and footings can use it. @section does likewise.
3677 \def\thischapter{}
3678 \def\thissection{}
3680 \newcount\absseclevel % used to calculate proper heading level
3681 \newcount\secbase\secbase=0 % @raise/lowersections modify this count
3683 % @raisesections: treat @section as chapter, @subsection as section, etc.
3684 \def\raisesections{\global\advance\secbase by -1}
3685 \let\up=\raisesections % original BFox name
3687 % @lowersections: treat @chapter as section, @section as subsection, etc.
3688 \def\lowersections{\global\advance\secbase by 1}
3689 \let\down=\lowersections % original BFox name
3691 % Choose a numbered-heading macro
3692 % #1 is heading level if unmodified by @raisesections or @lowersections
3693 % #2 is text for heading
3694 \def\numhead#1#2{\absseclevel=\secbase\advance\absseclevel by #1
3695 \ifcase\absseclevel
3696 \chapterzzz{#2}
3698 \seczzz{#2}
3700 \numberedsubseczzz{#2}
3702 \numberedsubsubseczzz{#2}
3703 \else
3704 \ifnum \absseclevel<0
3705 \chapterzzz{#2}
3706 \else
3707 \numberedsubsubseczzz{#2}
3712 % like \numhead, but chooses appendix heading levels
3713 \def\apphead#1#2{\absseclevel=\secbase\advance\absseclevel by #1
3714 \ifcase\absseclevel
3715 \appendixzzz{#2}
3717 \appendixsectionzzz{#2}
3719 \appendixsubseczzz{#2}
3721 \appendixsubsubseczzz{#2}
3722 \else
3723 \ifnum \absseclevel<0
3724 \appendixzzz{#2}
3725 \else
3726 \appendixsubsubseczzz{#2}
3731 % like \numhead, but chooses numberless heading levels
3732 \def\unnmhead#1#2{\absseclevel=\secbase\advance\absseclevel by #1
3733 \ifcase\absseclevel
3734 \unnumberedzzz{#2}
3736 \unnumberedseczzz{#2}
3738 \unnumberedsubseczzz{#2}
3740 \unnumberedsubsubseczzz{#2}
3741 \else
3742 \ifnum \absseclevel<0
3743 \unnumberedzzz{#2}
3744 \else
3745 \unnumberedsubsubseczzz{#2}
3750 % @chapter, @appendix, @unnumbered.
3751 \def\thischaptername{No Chapter Title}
3752 \outer\def\chapter{\parsearg\chapteryyy}
3753 \def\chapteryyy #1{\numhead0{#1}} % normally numhead0 calls chapterzzz
3754 \def\chapterzzz #1{%
3755 \secno=0 \subsecno=0 \subsubsecno=0
3756 \global\advance \chapno by 1 \message{\putwordChapter\space \the\chapno}%
3757 \chapmacro {#1}{\the\chapno}%
3758 \gdef\thissection{#1}%
3759 \gdef\thischaptername{#1}%
3760 % We don't substitute the actual chapter name into \thischapter
3761 % because we don't want its macros evaluated now.
3762 \xdef\thischapter{\putwordChapter{} \the\chapno: \noexpand\thischaptername}%
3763 \writetocentry{chap}{#1}{{\the\chapno}}
3764 \donoderef
3765 \global\let\section = \numberedsec
3766 \global\let\subsection = \numberedsubsec
3767 \global\let\subsubsection = \numberedsubsubsec
3770 % we use \chapno to avoid indenting back
3771 \def\appendixbox#1{%
3772 \setbox0 = \hbox{\putwordAppendix{} \the\chapno}%
3773 \hbox to \wd0{#1\hss}}
3775 \outer\def\appendix{\parsearg\appendixyyy}
3776 \def\appendixyyy #1{\apphead0{#1}} % normally apphead0 calls appendixzzz
3777 \def\appendixzzz #1{%
3778 \secno=0 \subsecno=0 \subsubsecno=0
3779 \global\advance \appendixno by 1
3780 \message{\putwordAppendix\space \appendixletter}%
3781 \chapmacro {#1}{\appendixbox{\putwordAppendix{} \appendixletter}}%
3782 \gdef\thissection{#1}%
3783 \gdef\thischaptername{#1}%
3784 \xdef\thischapter{\putwordAppendix{} \appendixletter: \noexpand\thischaptername}%
3785 \writetocentry{appendix}{#1}{{\appendixletter}}
3786 \appendixnoderef
3787 \global\let\section = \appendixsec
3788 \global\let\subsection = \appendixsubsec
3789 \global\let\subsubsection = \appendixsubsubsec
3792 % @centerchap is like @unnumbered, but the heading is centered.
3793 \outer\def\centerchap{\parsearg\centerchapyyy}
3794 \def\centerchapyyy #1{{\let\unnumbchapmacro=\centerchapmacro \unnumberedyyy{#1}}}
3796 % @top is like @unnumbered.
3797 \outer\def\top{\parsearg\unnumberedyyy}
3799 \outer\def\unnumbered{\parsearg\unnumberedyyy}
3800 \def\unnumberedyyy #1{\unnmhead0{#1}} % normally unnmhead0 calls unnumberedzzz
3801 \def\unnumberedzzz #1{%
3802 \secno=0 \subsecno=0 \subsubsecno=0
3804 % This used to be simply \message{#1}, but TeX fully expands the
3805 % argument to \message. Therefore, if #1 contained @-commands, TeX
3806 % expanded them. For example, in `@unnumbered The @cite{Book}', TeX
3807 % expanded @cite (which turns out to cause errors because \cite is meant
3808 % to be executed, not expanded).
3810 % Anyway, we don't want the fully-expanded definition of @cite to appear
3811 % as a result of the \message, we just want `@cite' itself. We use
3812 % \the<toks register> to achieve this: TeX expands \the<toks> only once,
3813 % simply yielding the contents of <toks register>. (We also do this for
3814 % the toc entries.)
3815 \toks0 = {#1}\message{(\the\toks0)}%
3817 \unnumbchapmacro {#1}%
3818 \gdef\thischapter{#1}\gdef\thissection{#1}%
3819 \writetocentry{unnumbchap}{#1}{{\the\chapno}}
3820 \unnumbnoderef
3821 \global\let\section = \unnumberedsec
3822 \global\let\subsection = \unnumberedsubsec
3823 \global\let\subsubsection = \unnumberedsubsubsec
3826 % Sections.
3827 \outer\def\numberedsec{\parsearg\secyyy}
3828 \def\secyyy #1{\numhead1{#1}} % normally calls seczzz
3829 \def\seczzz #1{%
3830 \subsecno=0 \subsubsecno=0 \global\advance \secno by 1 %
3831 \gdef\thissection{#1}\secheading {#1}{\the\chapno}{\the\secno}%
3832 \writetocentry{sec}{#1}{{\the\chapno}{\the\secno}}
3833 \donoderef
3834 \nobreak
3837 \outer\def\appendixsection{\parsearg\appendixsecyyy}
3838 \outer\def\appendixsec{\parsearg\appendixsecyyy}
3839 \def\appendixsecyyy #1{\apphead1{#1}} % normally calls appendixsectionzzz
3840 \def\appendixsectionzzz #1{%
3841 \subsecno=0 \subsubsecno=0 \global\advance \secno by 1 %
3842 \gdef\thissection{#1}\secheading {#1}{\appendixletter}{\the\secno}%
3843 \writetocentry{sec}{#1}{{\appendixletter}{\the\secno}}
3844 \appendixnoderef
3845 \nobreak
3848 \outer\def\unnumberedsec{\parsearg\unnumberedsecyyy}
3849 \def\unnumberedsecyyy #1{\unnmhead1{#1}} % normally calls unnumberedseczzz
3850 \def\unnumberedseczzz #1{%
3851 \plainsecheading {#1}\gdef\thissection{#1}%
3852 \writetocentry{unnumbsec}{#1}{{\the\chapno}{\the\secno}}
3853 \unnumbnoderef
3854 \nobreak
3857 % Subsections.
3858 \outer\def\numberedsubsec{\parsearg\numberedsubsecyyy}
3859 \def\numberedsubsecyyy #1{\numhead2{#1}} % normally calls numberedsubseczzz
3860 \def\numberedsubseczzz #1{%
3861 \gdef\thissection{#1}\subsubsecno=0 \global\advance \subsecno by 1 %
3862 \subsecheading {#1}{\the\chapno}{\the\secno}{\the\subsecno}%
3863 \writetocentry{subsec}{#1}{{\the\chapno}{\the\secno}{\the\subsecno}}
3864 \donoderef
3865 \nobreak
3868 \outer\def\appendixsubsec{\parsearg\appendixsubsecyyy}
3869 \def\appendixsubsecyyy #1{\apphead2{#1}} % normally calls appendixsubseczzz
3870 \def\appendixsubseczzz #1{%
3871 \gdef\thissection{#1}\subsubsecno=0 \global\advance \subsecno by 1 %
3872 \subsecheading {#1}{\appendixletter}{\the\secno}{\the\subsecno}%
3873 \writetocentry{subsec}{#1}{{\appendixletter}{\the\secno}{\the\subsecno}}
3874 \appendixnoderef
3875 \nobreak
3878 \outer\def\unnumberedsubsec{\parsearg\unnumberedsubsecyyy}
3879 \def\unnumberedsubsecyyy #1{\unnmhead2{#1}} %normally calls unnumberedsubseczzz
3880 \def\unnumberedsubseczzz #1{%
3881 \plainsubsecheading {#1}\gdef\thissection{#1}%
3882 \writetocentry{unnumbsubsec}{#1}{{\the\chapno}{\the\secno}{\the\subsecno}}
3883 \unnumbnoderef
3884 \nobreak
3887 % Subsubsections.
3888 \outer\def\numberedsubsubsec{\parsearg\numberedsubsubsecyyy}
3889 \def\numberedsubsubsecyyy #1{\numhead3{#1}} % normally numberedsubsubseczzz
3890 \def\numberedsubsubseczzz #1{%
3891 \gdef\thissection{#1}\global\advance \subsubsecno by 1 %
3892 \subsubsecheading {#1}
3893 {\the\chapno}{\the\secno}{\the\subsecno}{\the\subsubsecno}%
3894 \writetocentry{subsubsec}{#1}{{\the\chapno}{\the\secno}{\the\subsecno}{\the\subsubsecno}}
3895 \donoderef
3896 \nobreak
3899 \outer\def\appendixsubsubsec{\parsearg\appendixsubsubsecyyy}
3900 \def\appendixsubsubsecyyy #1{\apphead3{#1}} % normally appendixsubsubseczzz
3901 \def\appendixsubsubseczzz #1{%
3902 \gdef\thissection{#1}\global\advance \subsubsecno by 1 %
3903 \subsubsecheading {#1}
3904 {\appendixletter}{\the\secno}{\the\subsecno}{\the\subsubsecno}%
3905 \writetocentry{subsubsec}{#1}{{\appendixletter}{\the\secno}{\the\subsecno}{\the\subsubsecno}}
3906 \appendixnoderef
3907 \nobreak
3910 \outer\def\unnumberedsubsubsec{\parsearg\unnumberedsubsubsecyyy}
3911 \def\unnumberedsubsubsecyyy #1{\unnmhead3{#1}} %normally unnumberedsubsubseczzz
3912 \def\unnumberedsubsubseczzz #1{%
3913 \plainsubsubsecheading {#1}\gdef\thissection{#1}%
3914 \writetocentry{unnumbsubsubsec}{#1}{{\the\chapno}{\the\secno}{\the\subsecno}{\the\subsubsecno}}
3915 \unnumbnoderef
3916 \nobreak
3919 % These are variants which are not "outer", so they can appear in @ifinfo.
3920 % Actually, they should now be obsolete; ordinary section commands should work.
3921 \def\infotop{\parsearg\unnumberedzzz}
3922 \def\infounnumbered{\parsearg\unnumberedzzz}
3923 \def\infounnumberedsec{\parsearg\unnumberedseczzz}
3924 \def\infounnumberedsubsec{\parsearg\unnumberedsubseczzz}
3925 \def\infounnumberedsubsubsec{\parsearg\unnumberedsubsubseczzz}
3927 \def\infoappendix{\parsearg\appendixzzz}
3928 \def\infoappendixsec{\parsearg\appendixseczzz}
3929 \def\infoappendixsubsec{\parsearg\appendixsubseczzz}
3930 \def\infoappendixsubsubsec{\parsearg\appendixsubsubseczzz}
3932 \def\infochapter{\parsearg\chapterzzz}
3933 \def\infosection{\parsearg\sectionzzz}
3934 \def\infosubsection{\parsearg\subsectionzzz}
3935 \def\infosubsubsection{\parsearg\subsubsectionzzz}
3937 % These macros control what the section commands do, according
3938 % to what kind of chapter we are in (ordinary, appendix, or unnumbered).
3939 % Define them by default for a numbered chapter.
3940 \global\let\section = \numberedsec
3941 \global\let\subsection = \numberedsubsec
3942 \global\let\subsubsection = \numberedsubsubsec
3944 % Define @majorheading, @heading and @subheading
3946 % NOTE on use of \vbox for chapter headings, section headings, and such:
3947 % 1) We use \vbox rather than the earlier \line to permit
3948 % overlong headings to fold.
3949 % 2) \hyphenpenalty is set to 10000 because hyphenation in a
3950 % heading is obnoxious; this forbids it.
3951 % 3) Likewise, headings look best if no \parindent is used, and
3952 % if justification is not attempted. Hence \raggedright.
3955 \def\majorheading{\parsearg\majorheadingzzz}
3956 \def\majorheadingzzz #1{%
3957 {\advance\chapheadingskip by 10pt \chapbreak }%
3958 {\chapfonts \vbox{\hyphenpenalty=10000\tolerance=5000
3959 \parindent=0pt\raggedright
3960 \rm #1\hfill}}\bigskip \par\penalty 200}
3962 \def\chapheading{\parsearg\chapheadingzzz}
3963 \def\chapheadingzzz #1{\chapbreak %
3964 {\chapfonts \vbox{\hyphenpenalty=10000\tolerance=5000
3965 \parindent=0pt\raggedright
3966 \rm #1\hfill}}\bigskip \par\penalty 200}
3968 % @heading, @subheading, @subsubheading.
3969 \def\heading{\parsearg\plainsecheading}
3970 \def\subheading{\parsearg\plainsubsecheading}
3971 \def\subsubheading{\parsearg\plainsubsubsecheading}
3973 % These macros generate a chapter, section, etc. heading only
3974 % (including whitespace, linebreaking, etc. around it),
3975 % given all the information in convenient, parsed form.
3977 %%% Args are the skip and penalty (usually negative)
3978 \def\dobreak#1#2{\par\ifdim\lastskip<#1\removelastskip\penalty#2\vskip#1\fi}
3980 \def\setchapterstyle #1 {\csname CHAPF#1\endcsname}
3982 %%% Define plain chapter starts, and page on/off switching for it
3983 % Parameter controlling skip before chapter headings (if needed)
3985 \newskip\chapheadingskip
3987 \def\chapbreak{\dobreak \chapheadingskip {-4000}}
3988 \def\chappager{\par\vfill\supereject}
3989 \def\chapoddpage{\chappager \ifodd\pageno \else \hbox to 0pt{} \chappager\fi}
3991 \def\setchapternewpage #1 {\csname CHAPPAG#1\endcsname}
3993 \def\CHAPPAGoff{%
3994 \global\let\contentsalignmacro = \chappager
3995 \global\let\pchapsepmacro=\chapbreak
3996 \global\let\pagealignmacro=\chappager}
3998 \def\CHAPPAGon{%
3999 \global\let\contentsalignmacro = \chappager
4000 \global\let\pchapsepmacro=\chappager
4001 \global\let\pagealignmacro=\chappager
4002 \global\def\HEADINGSon{\HEADINGSsingle}}
4004 \def\CHAPPAGodd{
4005 \global\let\contentsalignmacro = \chapoddpage
4006 \global\let\pchapsepmacro=\chapoddpage
4007 \global\let\pagealignmacro=\chapoddpage
4008 \global\def\HEADINGSon{\HEADINGSdouble}}
4010 \CHAPPAGon
4012 \def\CHAPFplain{
4013 \global\let\chapmacro=\chfplain
4014 \global\let\unnumbchapmacro=\unnchfplain
4015 \global\let\centerchapmacro=\centerchfplain}
4017 % Plain chapter opening.
4018 % #1 is the text, #2 the chapter number or empty if unnumbered.
4019 \def\chfplain#1#2{%
4020 \pchapsepmacro
4022 \chapfonts \rm
4023 \def\chapnum{#2}%
4024 \setbox0 = \hbox{#2\ifx\chapnum\empty\else\enspace\fi}%
4025 \vbox{\hyphenpenalty=10000 \tolerance=5000 \parindent=0pt \raggedright
4026 \hangindent = \wd0 \centerparametersmaybe
4027 \unhbox0 #1\par}%
4029 \nobreak\bigskip % no page break after a chapter title
4030 \nobreak
4033 % Plain opening for unnumbered.
4034 \def\unnchfplain#1{\chfplain{#1}{}}
4036 % @centerchap -- centered and unnumbered.
4037 \let\centerparametersmaybe = \relax
4038 \def\centerchfplain#1{{%
4039 \def\centerparametersmaybe{%
4040 \advance\rightskip by 3\rightskip
4041 \leftskip = \rightskip
4042 \parfillskip = 0pt
4044 \chfplain{#1}{}%
4047 \CHAPFplain % The default
4049 \def\unnchfopen #1{%
4050 \chapoddpage {\chapfonts \vbox{\hyphenpenalty=10000\tolerance=5000
4051 \parindent=0pt\raggedright
4052 \rm #1\hfill}}\bigskip \par\nobreak
4055 \def\chfopen #1#2{\chapoddpage {\chapfonts
4056 \vbox to 3in{\vfil \hbox to\hsize{\hfil #2} \hbox to\hsize{\hfil #1} \vfil}}%
4057 \par\penalty 5000 %
4060 \def\centerchfopen #1{%
4061 \chapoddpage {\chapfonts \vbox{\hyphenpenalty=10000\tolerance=5000
4062 \parindent=0pt
4063 \hfill {\rm #1}\hfill}}\bigskip \par\nobreak
4066 \def\CHAPFopen{
4067 \global\let\chapmacro=\chfopen
4068 \global\let\unnumbchapmacro=\unnchfopen
4069 \global\let\centerchapmacro=\centerchfopen}
4072 % Section titles.
4073 \newskip\secheadingskip
4074 \def\secheadingbreak{\dobreak \secheadingskip {-1000}}
4075 \def\secheading#1#2#3{\sectionheading{sec}{#2.#3}{#1}}
4076 \def\plainsecheading#1{\sectionheading{sec}{}{#1}}
4078 % Subsection titles.
4079 \newskip \subsecheadingskip
4080 \def\subsecheadingbreak{\dobreak \subsecheadingskip {-500}}
4081 \def\subsecheading#1#2#3#4{\sectionheading{subsec}{#2.#3.#4}{#1}}
4082 \def\plainsubsecheading#1{\sectionheading{subsec}{}{#1}}
4084 % Subsubsection titles.
4085 \let\subsubsecheadingskip = \subsecheadingskip
4086 \let\subsubsecheadingbreak = \subsecheadingbreak
4087 \def\subsubsecheading#1#2#3#4#5{\sectionheading{subsubsec}{#2.#3.#4.#5}{#1}}
4088 \def\plainsubsubsecheading#1{\sectionheading{subsubsec}{}{#1}}
4091 % Print any size section title.
4093 % #1 is the section type (sec/subsec/subsubsec), #2 is the section
4094 % number (maybe empty), #3 the text.
4095 \def\sectionheading#1#2#3{%
4097 \expandafter\advance\csname #1headingskip\endcsname by \parskip
4098 \csname #1headingbreak\endcsname
4101 % Switch to the right set of fonts.
4102 \csname #1fonts\endcsname \rm
4104 % Only insert the separating space if we have a section number.
4105 \def\secnum{#2}%
4106 \setbox0 = \hbox{#2\ifx\secnum\empty\else\enspace\fi}%
4108 \vbox{\hyphenpenalty=10000 \tolerance=5000 \parindent=0pt \raggedright
4109 \hangindent = \wd0 % zero if no section number
4110 \unhbox0 #3}%
4112 % Add extra space after the heading -- either a line space or a
4113 % paragraph space, whichever is more. (Some people like to set
4114 % \parskip to large values for some reason.) Don't allow stretch, though.
4115 \nobreak
4116 \ifdim\parskip>\normalbaselineskip
4117 \kern\parskip
4118 \else
4119 \kern\normalbaselineskip
4121 \nobreak
4125 \message{toc,}
4126 % Table of contents.
4127 \newwrite\tocfile
4129 % Write an entry to the toc file, opening it if necessary.
4130 % Called from @chapter, etc. We supply {\folio} at the end of the
4131 % argument, which will end up as the last argument to the \...entry macro.
4133 % Usage: \writetocentry{chap}{The Name of The Game}{{\the\chapno}}
4134 % We open the .toc file for writing here instead of at @setfilename (or
4135 % any other fixed time) so that @contents can be anywhere in the document.
4137 \newif\iftocfileopened
4138 \def\writetocentry#1#2#3{%
4139 \iftocfileopened\else
4140 \immediate\openout\tocfile = \jobname.toc
4141 \global\tocfileopenedtrue
4144 \iflinks
4145 \toks0 = {#2}%
4146 \edef\temp{\write\tocfile{\realbackslash #1entry{\the\toks0}#3{\folio}}}%
4147 \temp
4150 % Tell \shipout to create a page destination if we're doing pdf, which
4151 % will be the target of the links in the table of contents. We can't
4152 % just do it on every page because the title pages are numbered 1 and
4153 % 2 (the page numbers aren't printed), and so are the first two pages
4154 % of the document. Thus, we'd have two destinations named `1', and
4155 % two named `2'.
4156 \ifpdf \pdfmakepagedesttrue \fi
4159 \newskip\contentsrightmargin \contentsrightmargin=1in
4160 \newcount\savepageno
4161 \newcount\lastnegativepageno \lastnegativepageno = -1
4163 % Finish up the main text and prepare to read what we've written
4164 % to \tocfile.
4166 \def\startcontents#1{%
4167 % If @setchapternewpage on, and @headings double, the contents should
4168 % start on an odd page, unlike chapters. Thus, we maintain
4169 % \contentsalignmacro in parallel with \pagealignmacro.
4170 % From: Torbjorn Granlund <tege@matematik.su.se>
4171 \contentsalignmacro
4172 \immediate\closeout\tocfile
4174 % Don't need to put `Contents' or `Short Contents' in the headline.
4175 % It is abundantly clear what they are.
4176 \unnumbchapmacro{#1}\def\thischapter{}%
4177 \savepageno = \pageno
4178 \begingroup % Set up to handle contents files properly.
4179 \catcode`\\=0 \catcode`\{=1 \catcode`\}=2 \catcode`\@=11
4180 % We can't do this, because then an actual ^ in a section
4181 % title fails, e.g., @chapter ^ -- exponentiation. --karl, 9jul97.
4182 %\catcode`\^=7 % to see ^^e4 as \"a etc. juha@piuha.ydi.vtt.fi
4183 \raggedbottom % Worry more about breakpoints than the bottom.
4184 \advance\hsize by -\contentsrightmargin % Don't use the full line length.
4186 % Roman numerals for page numbers.
4187 \ifnum \pageno>0 \global\pageno = \lastnegativepageno \fi
4191 % Normal (long) toc.
4192 \def\contents{%
4193 \startcontents{\putwordTOC}%
4194 \openin 1 \jobname.toc
4195 \ifeof 1 \else
4196 \closein 1
4197 \input \jobname.toc
4199 \vfill \eject
4200 \contentsalignmacro % in case @setchapternewpage odd is in effect
4201 \pdfmakeoutlines
4202 \endgroup
4203 \lastnegativepageno = \pageno
4204 \global\pageno = \savepageno
4207 % And just the chapters.
4208 \def\summarycontents{%
4209 \startcontents{\putwordShortTOC}%
4211 \let\chapentry = \shortchapentry
4212 \let\appendixentry = \shortappendixentry
4213 \let\unnumbchapentry = \shortunnumberedentry
4214 % We want a true roman here for the page numbers.
4215 \secfonts
4216 \let\rm=\shortcontrm \let\bf=\shortcontbf
4217 \let\sl=\shortcontsl \let\tt=\shortconttt
4219 \hyphenpenalty = 10000
4220 \advance\baselineskip by 1pt % Open it up a little.
4221 \def\secentry ##1##2##3##4{}
4222 \def\subsecentry ##1##2##3##4##5{}
4223 \def\subsubsecentry ##1##2##3##4##5##6{}
4224 \let\unnumbsecentry = \secentry
4225 \let\unnumbsubsecentry = \subsecentry
4226 \let\unnumbsubsubsecentry = \subsubsecentry
4227 \openin 1 \jobname.toc
4228 \ifeof 1 \else
4229 \closein 1
4230 \input \jobname.toc
4232 \vfill \eject
4233 \contentsalignmacro % in case @setchapternewpage odd is in effect
4234 \endgroup
4235 \lastnegativepageno = \pageno
4236 \global\pageno = \savepageno
4238 \let\shortcontents = \summarycontents
4240 \ifpdf
4241 \pdfcatalog{/PageMode /UseOutlines}%
4244 % These macros generate individual entries in the table of contents.
4245 % The first argument is the chapter or section name.
4246 % The last argument is the page number.
4247 % The arguments in between are the chapter number, section number, ...
4249 % Chapters, in the main contents.
4250 \def\chapentry#1#2#3{\dochapentry{#2\labelspace#1}{#3}}
4252 % Chapters, in the short toc.
4253 % See comments in \dochapentry re vbox and related settings.
4254 \def\shortchapentry#1#2#3{%
4255 \tocentry{\shortchaplabel{#2}\labelspace #1}{\doshortpageno\bgroup#3\egroup}%
4258 % Appendices, in the main contents.
4259 \def\appendixentry#1#2#3{%
4260 \dochapentry{\appendixbox{\putwordAppendix{} #2}\labelspace#1}{#3}}
4262 % Appendices, in the short toc.
4263 \let\shortappendixentry = \shortchapentry
4265 % Typeset the label for a chapter or appendix for the short contents.
4266 % The arg is, e.g., `Appendix A' for an appendix, or `3' for a chapter.
4267 % We could simplify the code here by writing out an \appendixentry
4268 % command in the toc file for appendices, instead of using \chapentry
4269 % for both, but it doesn't seem worth it.
4271 \newdimen\shortappendixwidth
4273 \def\shortchaplabel#1{%
4274 % This space should be enough, since a single number is .5em, and the
4275 % widest letter (M) is 1em, at least in the Computer Modern fonts.
4276 % But use \hss just in case.
4277 % (This space doesn't include the extra space that gets added after
4278 % the label; that gets put in by \shortchapentry above.)
4279 \dimen0 = 1em
4280 \hbox to \dimen0{#1\hss}%
4283 % Unnumbered chapters.
4284 \def\unnumbchapentry#1#2#3{\dochapentry{#1}{#3}}
4285 \def\shortunnumberedentry#1#2#3{\tocentry{#1}{\doshortpageno\bgroup#3\egroup}}
4287 % Sections.
4288 \def\secentry#1#2#3#4{\dosecentry{#2.#3\labelspace#1}{#4}}
4289 \def\unnumbsecentry#1#2#3#4{\dosecentry{#1}{#4}}
4291 % Subsections.
4292 \def\subsecentry#1#2#3#4#5{\dosubsecentry{#2.#3.#4\labelspace#1}{#5}}
4293 \def\unnumbsubsecentry#1#2#3#4#5{\dosubsecentry{#1}{#5}}
4295 % And subsubsections.
4296 \def\subsubsecentry#1#2#3#4#5#6{%
4297 \dosubsubsecentry{#2.#3.#4.#5\labelspace#1}{#6}}
4298 \def\unnumbsubsubsecentry#1#2#3#4#5#6{\dosubsubsecentry{#1}{#6}}
4300 % This parameter controls the indentation of the various levels.
4301 \newdimen\tocindent \tocindent = 3pc
4303 % Now for the actual typesetting. In all these, #1 is the text and #2 is the
4304 % page number.
4306 % If the toc has to be broken over pages, we want it to be at chapters
4307 % if at all possible; hence the \penalty.
4308 \def\dochapentry#1#2{%
4309 \penalty-300 \vskip1\baselineskip plus.33\baselineskip minus.25\baselineskip
4310 \begingroup
4311 \chapentryfonts
4312 \tocentry{#1}{\dopageno\bgroup#2\egroup}%
4313 \endgroup
4314 \nobreak\vskip .25\baselineskip plus.1\baselineskip
4317 \def\dosecentry#1#2{\begingroup
4318 \secentryfonts \leftskip=\tocindent
4319 \tocentry{#1}{\dopageno\bgroup#2\egroup}%
4320 \endgroup}
4322 \def\dosubsecentry#1#2{\begingroup
4323 \subsecentryfonts \leftskip=2\tocindent
4324 \tocentry{#1}{\dopageno\bgroup#2\egroup}%
4325 \endgroup}
4327 \def\dosubsubsecentry#1#2{\begingroup
4328 \subsubsecentryfonts \leftskip=3\tocindent
4329 \tocentry{#1}{\dopageno\bgroup#2\egroup}%
4330 \endgroup}
4332 % Final typesetting of a toc entry; we use the same \entry macro as for
4333 % the index entries, but we want to suppress hyphenation here. (We
4334 % can't do that in the \entry macro, since index entries might consist
4335 % of hyphenated-identifiers-that-do-not-fit-on-a-line-and-nothing-else.)
4336 \def\tocentry#1#2{\begingroup
4337 \vskip 0pt plus1pt % allow a little stretch for the sake of nice page breaks
4338 % Do not use \turnoffactive in these arguments. Since the toc is
4339 % typeset in cmr, characters such as _ would come out wrong; we
4340 % have to do the usual translation tricks.
4341 \entry{#1}{#2}%
4342 \endgroup}
4344 % Space between chapter (or whatever) number and the title.
4345 \def\labelspace{\hskip1em \relax}
4347 \def\dopageno#1{{\rm #1}}
4348 \def\doshortpageno#1{{\rm #1}}
4350 \def\chapentryfonts{\secfonts \rm}
4351 \def\secentryfonts{\textfonts}
4352 \let\subsecentryfonts = \textfonts
4353 \let\subsubsecentryfonts = \textfonts
4356 \message{environments,}
4357 % @foo ... @end foo.
4359 % @point{}, @result{}, @expansion{}, @print{}, @equiv{}.
4361 % Since these characters are used in examples, it should be an even number of
4362 % \tt widths. Each \tt character is 1en, so two makes it 1em.
4364 \def\point{$\star$}
4365 \def\result{\leavevmode\raise.15ex\hbox to 1em{\hfil$\Rightarrow$\hfil}}
4366 \def\expansion{\leavevmode\raise.1ex\hbox to 1em{\hfil$\mapsto$\hfil}}
4367 \def\print{\leavevmode\lower.1ex\hbox to 1em{\hfil$\dashv$\hfil}}
4368 \def\equiv{\leavevmode\lower.1ex\hbox to 1em{\hfil$\ptexequiv$\hfil}}
4370 % The @error{} command.
4371 % Adapted from the TeXbook's \boxit.
4373 \newbox\errorbox
4375 {\tentt \global\dimen0 = 3em}% Width of the box.
4376 \dimen2 = .55pt % Thickness of rules
4377 % The text. (`r' is open on the right, `e' somewhat less so on the left.)
4378 \setbox0 = \hbox{\kern-.75pt \tensf error\kern-1.5pt}
4380 \global\setbox\errorbox=\hbox to \dimen0{\hfil
4381 \hsize = \dimen0 \advance\hsize by -5.8pt % Space to left+right.
4382 \advance\hsize by -2\dimen2 % Rules.
4383 \vbox{
4384 \hrule height\dimen2
4385 \hbox{\vrule width\dimen2 \kern3pt % Space to left of text.
4386 \vtop{\kern2.4pt \box0 \kern2.4pt}% Space above/below.
4387 \kern3pt\vrule width\dimen2}% Space to right.
4388 \hrule height\dimen2}
4389 \hfil}
4391 \def\error{\leavevmode\lower.7ex\copy\errorbox}
4393 % @tex ... @end tex escapes into raw Tex temporarily.
4394 % One exception: @ is still an escape character, so that @end tex works.
4395 % But \@ or @@ will get a plain tex @ character.
4397 \def\tex{\begingroup
4398 \catcode `\\=0 \catcode `\{=1 \catcode `\}=2
4399 \catcode `\$=3 \catcode `\&=4 \catcode `\#=6
4400 \catcode `\^=7 \catcode `\_=8 \catcode `\~=\active \let~=\tie
4401 \catcode `\%=14
4402 \catcode `\+=\other
4403 \catcode `\"=\other
4404 \catcode `\==\other
4405 \catcode `\|=\other
4406 \catcode `\<=\other
4407 \catcode `\>=\other
4408 \escapechar=`\\
4410 \let\b=\ptexb
4411 \let\bullet=\ptexbullet
4412 \let\c=\ptexc
4413 \let\,=\ptexcomma
4414 \let\.=\ptexdot
4415 \let\dots=\ptexdots
4416 \let\equiv=\ptexequiv
4417 \let\!=\ptexexclam
4418 \let\i=\ptexi
4419 \let\{=\ptexlbrace
4420 \let\+=\tabalign
4421 \let\}=\ptexrbrace
4422 \let\*=\ptexstar
4423 \let\t=\ptext
4425 \def\endldots{\mathinner{\ldots\ldots\ldots\ldots}}%
4426 \def\enddots{\relax\ifmmode\endldots\else$\mathsurround=0pt \endldots\,$\fi}%
4427 \def\@{@}%
4428 \let\Etex=\endgroup}
4430 % Define @lisp ... @end lisp.
4431 % @lisp does a \begingroup so it can rebind things,
4432 % including the definition of @end lisp (which normally is erroneous).
4434 % Amount to narrow the margins by for @lisp.
4435 \newskip\lispnarrowing \lispnarrowing=0.4in
4437 % This is the definition that ^^M gets inside @lisp, @example, and other
4438 % such environments. \null is better than a space, since it doesn't
4439 % have any width.
4440 \def\lisppar{\null\endgraf}
4442 % Make each space character in the input produce a normal interword
4443 % space in the output. Don't allow a line break at this space, as this
4444 % is used only in environments like @example, where each line of input
4445 % should produce a line of output anyway.
4447 {\obeyspaces %
4448 \gdef\sepspaces{\obeyspaces\let =\tie}}
4450 % Define \obeyedspace to be our active space, whatever it is. This is
4451 % for use in \parsearg.
4452 {\sepspaces%
4453 \global\let\obeyedspace= }
4455 % This space is always present above and below environments.
4456 \newskip\envskipamount \envskipamount = 0pt
4458 % Make spacing and below environment symmetrical. We use \parskip here
4459 % to help in doing that, since in @example-like environments \parskip
4460 % is reset to zero; thus the \afterenvbreak inserts no space -- but the
4461 % start of the next paragraph will insert \parskip.
4463 \def\aboveenvbreak{{%
4464 % =10000 instead of <10000 because of a special case in \itemzzz, q.v.
4465 \ifnum \lastpenalty=10000 \else
4466 \advance\envskipamount by \parskip
4467 \endgraf
4468 \ifdim\lastskip<\envskipamount
4469 \removelastskip
4470 % it's not a good place to break if the last penalty was \nobreak
4471 % or better ...
4472 \ifnum\lastpenalty>10000 \else \penalty-50 \fi
4473 \vskip\envskipamount
4478 \let\afterenvbreak = \aboveenvbreak
4480 % \nonarrowing is a flag. If "set", @lisp etc don't narrow margins.
4481 \let\nonarrowing=\relax
4483 % @cartouche ... @end cartouche: draw rectangle w/rounded corners around
4484 % environment contents.
4485 \font\circle=lcircle10
4486 \newdimen\circthick
4487 \newdimen\cartouter\newdimen\cartinner
4488 \newskip\normbskip\newskip\normpskip\newskip\normlskip
4489 \circthick=\fontdimen8\circle
4491 \def\ctl{{\circle\char'013\hskip -6pt}}% 6pt from pl file: 1/2charwidth
4492 \def\ctr{{\hskip 6pt\circle\char'010}}
4493 \def\cbl{{\circle\char'012\hskip -6pt}}
4494 \def\cbr{{\hskip 6pt\circle\char'011}}
4495 \def\carttop{\hbox to \cartouter{\hskip\lskip
4496 \ctl\leaders\hrule height\circthick\hfil\ctr
4497 \hskip\rskip}}
4498 \def\cartbot{\hbox to \cartouter{\hskip\lskip
4499 \cbl\leaders\hrule height\circthick\hfil\cbr
4500 \hskip\rskip}}
4502 \newskip\lskip\newskip\rskip
4504 \def\cartouche{%
4505 \par % can't be in the midst of a paragraph.
4506 \begingroup
4507 \lskip=\leftskip \rskip=\rightskip
4508 \leftskip=0pt\rightskip=0pt %we want these *outside*.
4509 \cartinner=\hsize \advance\cartinner by-\lskip
4510 \advance\cartinner by-\rskip
4511 \cartouter=\hsize
4512 \advance\cartouter by 18.4pt % allow for 3pt kerns on either
4513 % side, and for 6pt waste from
4514 % each corner char, and rule thickness
4515 \normbskip=\baselineskip \normpskip=\parskip \normlskip=\lineskip
4516 % Flag to tell @lisp, etc., not to narrow margin.
4517 \let\nonarrowing=\comment
4518 \vbox\bgroup
4519 \baselineskip=0pt\parskip=0pt\lineskip=0pt
4520 \carttop
4521 \hbox\bgroup
4522 \hskip\lskip
4523 \vrule\kern3pt
4524 \vbox\bgroup
4525 \hsize=\cartinner
4526 \kern3pt
4527 \begingroup
4528 \baselineskip=\normbskip
4529 \lineskip=\normlskip
4530 \parskip=\normpskip
4531 \vskip -\parskip
4532 \def\Ecartouche{%
4533 \endgroup
4534 \kern3pt
4535 \egroup
4536 \kern3pt\vrule
4537 \hskip\rskip
4538 \egroup
4539 \cartbot
4540 \egroup
4541 \endgroup
4545 % This macro is called at the beginning of all the @example variants,
4546 % inside a group.
4547 \def\nonfillstart{%
4548 \aboveenvbreak
4549 \inENV % This group ends at the end of the body
4550 \hfuzz = 12pt % Don't be fussy
4551 \sepspaces % Make spaces be word-separators rather than space tokens.
4552 \let\par = \lisppar % don't ignore blank lines
4553 \obeylines % each line of input is a line of output
4554 \parskip = 0pt
4555 \parindent = 0pt
4556 \emergencystretch = 0pt % don't try to avoid overfull boxes
4557 % @cartouche defines \nonarrowing to inhibit narrowing
4558 % at next level down.
4559 \ifx\nonarrowing\relax
4560 \advance \leftskip by \lispnarrowing
4561 \exdentamount=\lispnarrowing
4562 \let\exdent=\nofillexdent
4563 \let\nonarrowing=\relax
4567 % Define the \E... control sequence only if we are inside the particular
4568 % environment, so the error checking in \end will work.
4570 % To end an @example-like environment, we first end the paragraph (via
4571 % \afterenvbreak's vertical glue), and then the group. That way we keep
4572 % the zero \parskip that the environments set -- \parskip glue will be
4573 % inserted at the beginning of the next paragraph in the document, after
4574 % the environment.
4576 \def\nonfillfinish{\afterenvbreak\endgroup}
4578 % @lisp: indented, narrowed, typewriter font.
4579 \def\lisp{\begingroup
4580 \nonfillstart
4581 \let\Elisp = \nonfillfinish
4583 \let\kbdfont = \kbdexamplefont % Allow @kbd to do something special.
4584 \gobble % eat return
4587 % @example: Same as @lisp.
4588 \def\example{\begingroup \def\Eexample{\nonfillfinish\endgroup}\lisp}
4590 % @smallexample and @smalllisp: use smaller fonts.
4591 % Originally contributed by Pavel@xerox.
4592 \def\smalllisp{\begingroup
4593 \def\Esmalllisp{\nonfillfinish\endgroup}%
4594 \def\Esmallexample{\nonfillfinish\endgroup}%
4595 \smallexamplefonts
4596 \lisp
4598 \let\smallexample = \smalllisp
4601 % @display: same as @lisp except keep current font.
4603 \def\display{\begingroup
4604 \nonfillstart
4605 \let\Edisplay = \nonfillfinish
4606 \gobble
4609 % @smalldisplay: @display plus smaller fonts.
4611 \def\smalldisplay{\begingroup
4612 \def\Esmalldisplay{\nonfillfinish\endgroup}%
4613 \smallexamplefonts \rm
4614 \display
4617 % @format: same as @display except don't narrow margins.
4619 \def\format{\begingroup
4620 \let\nonarrowing = t
4621 \nonfillstart
4622 \let\Eformat = \nonfillfinish
4623 \gobble
4626 % @smallformat: @format plus smaller fonts.
4628 \def\smallformat{\begingroup
4629 \def\Esmallformat{\nonfillfinish\endgroup}%
4630 \smallexamplefonts \rm
4631 \format
4634 % @flushleft (same as @format).
4636 \def\flushleft{\begingroup \def\Eflushleft{\nonfillfinish\endgroup}\format}
4638 % @flushright.
4640 \def\flushright{\begingroup
4641 \let\nonarrowing = t
4642 \nonfillstart
4643 \let\Eflushright = \nonfillfinish
4644 \advance\leftskip by 0pt plus 1fill
4645 \gobble
4649 % @quotation does normal linebreaking (hence we can't use \nonfillstart)
4650 % and narrows the margins.
4652 \def\quotation{%
4653 \begingroup\inENV %This group ends at the end of the @quotation body
4654 {\parskip=0pt \aboveenvbreak}% because \aboveenvbreak inserts \parskip
4655 \parindent=0pt
4656 % We have retained a nonzero parskip for the environment, since we're
4657 % doing normal filling. So to avoid extra space below the environment...
4658 \def\Equotation{\parskip = 0pt \nonfillfinish}%
4660 % @cartouche defines \nonarrowing to inhibit narrowing at next level down.
4661 \ifx\nonarrowing\relax
4662 \advance\leftskip by \lispnarrowing
4663 \advance\rightskip by \lispnarrowing
4664 \exdentamount = \lispnarrowing
4665 \let\nonarrowing = \relax
4670 % LaTeX-like @verbatim...@end verbatim and @verb{<char>...<char>}
4671 % If we want to allow any <char> as delimiter,
4672 % we need the curly braces so that makeinfo sees the @verb command, eg:
4673 % `@verbx...x' would look like the '@verbx' command. --janneke@gnu.org
4675 % [Knuth]: Donald Ervin Knuth, 1996. The TeXbook.
4677 % [Knuth] p.344; only we need to do the other characters Texinfo sets
4678 % active too. Otherwise, they get lost as the first character on a
4679 % verbatim line.
4680 \def\dospecials{%
4681 \do\ \do\\\do\{\do\}\do\$\do\&%
4682 \do\#\do\^\do\^^K\do\_\do\^^A\do\%\do\~%
4683 \do\<\do\>\do\|\do\@\do+\do\"%
4686 % [Knuth] p. 380
4687 \def\uncatcodespecials{%
4688 \def\do##1{\catcode`##1=12}\dospecials}
4690 % [Knuth] pp. 380,381,391
4691 % Disable Spanish ligatures ?` and !` of \tt font
4692 \begingroup
4693 \catcode`\`=\active\gdef`{\relax\lq}
4694 \endgroup
4696 % Setup for the @verb command.
4698 % Eight spaces for a tab
4699 \begingroup
4700 \catcode`\^^I=\active
4701 \gdef\tabeightspaces{\catcode`\^^I=\active\def^^I{\ \ \ \ \ \ \ \ }}
4702 \endgroup
4704 \def\setupverb{%
4705 \tt % easiest (and conventionally used) font for verbatim
4706 \def\par{\leavevmode\endgraf}%
4707 \catcode`\`=\active
4708 \tabeightspaces
4709 % Respect line breaks,
4710 % print special symbols as themselves, and
4711 % make each space count
4712 % must do in this order:
4713 \obeylines \uncatcodespecials \sepspaces
4716 % Setup for the @verbatim environment
4718 % Real tab expansion
4719 \newdimen\tabw \setbox0=\hbox{\tt\space} \tabw=8\wd0 % tab amount
4721 \def\starttabbox{\setbox0=\hbox\bgroup}
4722 \begingroup
4723 \catcode`\^^I=\active
4724 \gdef\tabexpand{%
4725 \catcode`\^^I=\active
4726 \def^^I{\leavevmode\egroup
4727 \dimen0=\wd0 % the width so far, or since the previous tab
4728 \divide\dimen0 by\tabw
4729 \multiply\dimen0 by\tabw % compute previous multiple of \tabw
4730 \advance\dimen0 by\tabw % advance to next multiple of \tabw
4731 \wd0=\dimen0 \box0 \starttabbox
4734 \endgroup
4735 \def\setupverbatim{%
4736 % Easiest (and conventionally used) font for verbatim
4738 \def\par{\leavevmode\egroup\box0\endgraf}%
4739 \catcode`\`=\active
4740 \tabexpand
4741 % Respect line breaks,
4742 % print special symbols as themselves, and
4743 % make each space count
4744 % must do in this order:
4745 \obeylines \uncatcodespecials \sepspaces
4746 \everypar{\starttabbox}%
4749 % Do the @verb magic: verbatim text is quoted by unique
4750 % delimiter characters. Before first delimiter expect a
4751 % right brace, after last delimiter expect closing brace:
4753 % \def\doverb'{'<char>#1<char>'}'{#1}
4755 % [Knuth] p. 382; only eat outer {}
4756 \begingroup
4757 \catcode`[=1\catcode`]=2\catcode`\{=12\catcode`\}=12
4758 \gdef\doverb{#1[\def\next##1#1}[##1\endgroup]\next]
4759 \endgroup
4761 \def\verb{\begingroup\setupverb\doverb}
4764 % Do the @verbatim magic: define the macro \doverbatim so that
4765 % the (first) argument ends when '@end verbatim' is reached, ie:
4767 % \def\doverbatim#1@end verbatim{#1}
4769 % For Texinfo it's a lot easier than for LaTeX,
4770 % because texinfo's \verbatim doesn't stop at '\end{verbatim}':
4771 % we need not redefine '\', '{' and '}'.
4773 % Inspired by LaTeX's verbatim command set [latex.ltx]
4774 %% Include LaTeX hack for completeness -- never know
4775 %% \begingroup
4776 %% \catcode`|=0 \catcode`[=1
4777 %% \catcode`]=2\catcode`\{=12\catcode`\}=12\catcode`\ =\active
4778 %% \catcode`\\=12|gdef|doverbatim#1@end verbatim[
4779 %% #1|endgroup|def|Everbatim[]|end[verbatim]]
4780 %% |endgroup
4782 \begingroup
4783 \catcode`\ =\active
4784 \obeylines %
4785 % ignore everything up to the first ^^M, that's the newline at the end
4786 % of the @verbatim input line itself. Otherwise we get an extra blank
4787 % line in the output.
4788 \gdef\doverbatim#1^^M#2@end verbatim{#2\end{verbatim}}%
4789 \endgroup
4791 \def\verbatim{%
4792 \def\Everbatim{\nonfillfinish\endgroup}%
4793 \begingroup
4794 \nonfillstart
4795 \advance\leftskip by -\defbodyindent
4796 \begingroup\setupverbatim\doverbatim
4799 % @verbatiminclude FILE - insert text of file in verbatim environment.
4801 % Allow normal characters that we make active in the argument (a file name).
4802 \def\verbatiminclude{%
4803 \begingroup
4804 \catcode`\\=\other
4805 \catcode`~=\other
4806 \catcode`^=\other
4807 \catcode`_=\other
4808 \catcode`|=\other
4809 \catcode`<=\other
4810 \catcode`>=\other
4811 \catcode`+=\other
4812 \parsearg\doverbatiminclude
4814 \def\setupverbatiminclude{%
4815 \begingroup
4816 \nonfillstart
4817 \advance\leftskip by -\defbodyindent
4818 \begingroup\setupverbatim
4821 \def\doverbatiminclude#1{%
4822 % Restore active chars for included file.
4823 \endgroup
4824 \begingroup
4825 \let\value=\expandablevalue
4826 \def\thisfile{#1}%
4827 \expandafter\expandafter\setupverbatiminclude\input\thisfile
4828 \endgroup
4829 \nonfillfinish
4830 \endgroup
4833 % @copying ... @end copying.
4834 % Save the text away for @insertcopying later. Many commands won't be
4835 % allowed in this context, but that's ok.
4837 % We save the uninterpreted tokens, rather than creating a box.
4838 % Saving the text in a box would be much easier, but then all the
4839 % typesetting commands (@smallbook, font changes, etc.) have to be done
4840 % beforehand -- and a) we want @copying to be done first in the source
4841 % file; b) letting users define the frontmatter in as flexible order as
4842 % possible is very desirable.
4844 \def\copying{\begingroup
4845 % Define a command to swallow text until we reach `@end copying'.
4846 % \ is the escape char in this texinfo.tex file, so it is the
4847 % delimiter for the command; @ will be the escape char when we read
4848 % it, but that doesn't matter.
4849 \long\def\docopying##1\end copying{\gdef\copyingtext{##1}\enddocopying}%
4851 % We must preserve ^^M's in the input file; see \insertcopying below.
4852 \catcode`\^^M = \active
4853 \docopying
4856 % What we do to finish off the copying text.
4858 \def\enddocopying{\endgroup\ignorespaces}
4860 % @insertcopying. Here we must play games with ^^M's. On the one hand,
4861 % we need them to delimit commands such as `@end quotation', so they
4862 % must be active. On the other hand, we certainly don't want every
4863 % end-of-line to be a \par, as would happen with the normal active
4864 % definition of ^^M. On the third hand, two ^^M's in a row should still
4865 % generate a \par.
4867 % Our approach is to make ^^M insert a space and a penalty1 normally;
4868 % then it can also check if \lastpenalty=1. If it does, then manually
4869 % do \par.
4871 % This messes up the normal definitions of @c[omment], so we redefine
4872 % it. Similarly for @ignore. (These commands are used in the gcc
4873 % manual for man page generation.)
4875 % Seems pretty fragile, most line-oriented commands will presumably
4876 % fail, but for the limited use of getting the copying text (which
4877 % should be quite simple) inserted, we can hope it's ok.
4879 {\catcode`\^^M=\active %
4880 \gdef\insertcopying{\begingroup %
4881 \parindent = 0pt % looks wrong on title page
4882 \def^^M{%
4883 \ifnum \lastpenalty=1 %
4884 \par %
4885 \else %
4886 \space \penalty 1 %
4887 \fi %
4890 % Fix @c[omment] for catcode 13 ^^M's.
4891 \def\c##1^^M{\ignorespaces}%
4892 \let\comment = \c %
4894 % Don't bother jumping through all the hoops that \doignore does, it
4895 % would be very hard since the catcodes are already set.
4896 \long\def\ignore##1\end ignore{\ignorespaces}%
4898 \copyingtext %
4899 \endgroup}%
4902 \message{defuns,}
4903 % @defun etc.
4905 % Allow user to change definition object font (\df) internally
4906 \def\setdeffont#1 {\csname DEF#1\endcsname}
4908 \newskip\defbodyindent \defbodyindent=.4in
4909 \newskip\defargsindent \defargsindent=50pt
4910 \newskip\deflastargmargin \deflastargmargin=18pt
4912 \newcount\parencount
4914 % We want ()&[] to print specially on the defun line.
4916 \def\activeparens{%
4917 \catcode`\(=\active \catcode`\)=\active
4918 \catcode`\&=\active
4919 \catcode`\[=\active \catcode`\]=\active
4922 % Make control sequences which act like normal parenthesis chars.
4923 \let\lparen = ( \let\rparen = )
4925 {\activeparens % Now, smart parens don't turn on until &foo (see \amprm)
4927 % Be sure that we always have a definition for `(', etc. For example,
4928 % if the fn name has parens in it, \boldbrax will not be in effect yet,
4929 % so TeX would otherwise complain about undefined control sequence.
4930 \global\let(=\lparen \global\let)=\rparen
4931 \global\let[=\lbrack \global\let]=\rbrack
4933 \gdef\functionparens{\boldbrax\let&=\amprm\parencount=0 }
4934 \gdef\boldbrax{\let(=\opnr\let)=\clnr\let[=\lbrb\let]=\rbrb}
4935 % This is used to turn on special parens
4936 % but make & act ordinary (given that it's active).
4937 \gdef\boldbraxnoamp{\let(=\opnr\let)=\clnr\let[=\lbrb\let]=\rbrb\let&=\ampnr}
4939 % Definitions of (, ) and & used in args for functions.
4940 % This is the definition of ( outside of all parentheses.
4941 \gdef\oprm#1 {{\rm\char`\(}#1 \bf \let(=\opnested
4942 \global\advance\parencount by 1
4945 % This is the definition of ( when already inside a level of parens.
4946 \gdef\opnested{\char`\(\global\advance\parencount by 1 }
4948 \gdef\clrm{% Print a paren in roman if it is taking us back to depth of 0.
4949 % also in that case restore the outer-level definition of (.
4950 \ifnum \parencount=1 {\rm \char `\)}\sl \let(=\oprm \else \char `\) \fi
4951 \global\advance \parencount by -1 }
4952 % If we encounter &foo, then turn on ()-hacking afterwards
4953 \gdef\amprm#1 {{\rm\&#1}\let(=\oprm \let)=\clrm\ }
4955 \gdef\normalparens{\boldbrax\let&=\ampnr}
4956 } % End of definition inside \activeparens
4957 %% These parens (in \boldbrax) actually are a little bolder than the
4958 %% contained text. This is especially needed for [ and ]
4959 \def\opnr{{\sf\char`\(}\global\advance\parencount by 1 }
4960 \def\clnr{{\sf\char`\)}\global\advance\parencount by -1 }
4961 \let\ampnr = \&
4962 \def\lbrb{{\bf\char`\[}}
4963 \def\rbrb{{\bf\char`\]}}
4965 % Active &'s sneak into the index arguments, so make sure it's defined.
4967 \catcode`& = \active
4968 \global\let& = \ampnr
4971 % \defname, which formats the name of the @def (not the args).
4972 % #1 is the function name.
4973 % #2 is the type of definition, such as "Function".
4975 \def\defname#1#2{%
4976 % How we'll output the type name. Putting it in brackets helps
4977 % distinguish it from the body text that may end up on the next line
4978 % just below it.
4979 \ifempty{#2}%
4980 \def\defnametype{}%
4981 \else
4982 \def\defnametype{[\rm #2]}%
4985 % Get the values of \leftskip and \rightskip as they were outside the @def...
4986 \dimen2=\leftskip
4987 \advance\dimen2 by -\defbodyindent
4989 % Figure out values for the paragraph shape.
4990 \setbox0=\hbox{\hskip \deflastargmargin{\defnametype}}%
4991 \dimen0=\hsize \advance \dimen0 by -\wd0 % compute size for first line
4992 \dimen1=\hsize \advance \dimen1 by -\defargsindent % size for continuations
4993 \parshape 2 0in \dimen0 \defargsindent \dimen1
4995 % Output arg 2 ("Function" or some such) but stuck inside a box of
4996 % width 0 so it does not interfere with linebreaking.
4997 \noindent
4999 {% Adjust \hsize to exclude the ambient margins,
5000 % so that \rightline will obey them.
5001 \advance \hsize by -\dimen2
5002 \dimen3 = 0pt % was -1.25pc
5003 \rlap{\rightline{\defnametype\kern\dimen3}}%
5006 % Allow all lines to be underfull without complaint:
5007 \tolerance=10000 \hbadness=10000
5008 \advance\leftskip by -\defbodyindent
5009 \exdentamount=\defbodyindent
5010 {\df #1}\enskip % output function name
5011 % \defunargs will be called next to output the arguments, if any.
5014 % Common pieces to start any @def...
5015 % #1 is the \E... control sequence to end the definition (which we define).
5016 % #2 is the \...x control sequence (which our caller defines).
5017 % #3 is the control sequence to process the header, such as \defunheader.
5019 \def\parsebodycommon#1#2#3{%
5020 \begingroup\inENV
5021 % If there are two @def commands in a row, we'll have a \nobreak,
5022 % which is there to keep the function description together with its
5023 % header. But if there's nothing but headers, we want to allow a
5024 % break after all. Check for penalty 10002 (inserted by
5025 % \defargscommonending) instead of 10000, since the sectioning
5026 % commands insert a \penalty10000, and we don't want to allow a break
5027 % between a section heading and a defun.
5028 \ifnum\lastpenalty=10002 \penalty0 \fi
5029 \medbreak
5031 % Define the \E... end token that this defining construct specifies
5032 % so that it will exit this group.
5033 \def#1{\endgraf\endgroup\medbreak}%
5035 \parindent=0in
5036 \advance\leftskip by \defbodyindent
5037 \exdentamount=\defbodyindent
5040 % Common part of the \...x definitions.
5042 \def\defxbodycommon{%
5043 % As with \parsebodycommon above, allow line break if we have multiple
5044 % x headers in a row. It's not a great place, though.
5045 \ifnum\lastpenalty=10000 \penalty1000 \fi
5047 \begingroup\obeylines
5050 % Process body of @defun, @deffn, @defmac, etc.
5052 \def\defparsebody#1#2#3{%
5053 \parsebodycommon{#1}{#2}{#3}%
5054 \def#2{\defxbodycommon \activeparens \spacesplit#3}%
5055 \catcode\equalChar=\active
5056 \begingroup\obeylines\activeparens
5057 \spacesplit#3%
5060 % #1, #2, #3 are the common arguments (see \parsebodycommon above).
5061 % #4, delimited by the space, is the class name.
5063 \def\defmethparsebody#1#2#3#4 {%
5064 \parsebodycommon{#1}{#2}{#3}%
5065 \def#2##1 {\defxbodycommon \activeparens \spacesplit{#3{##1}}}%
5066 \begingroup\obeylines\activeparens
5067 % The \empty here prevents misinterpretation of a construct such as
5068 % @deffn {whatever} {Enharmonic comma}
5069 % See comments at \deftpparsebody, although in our case we don't have
5070 % to remove the \empty afterwards, since it is empty.
5071 \spacesplit{#3{#4}}\empty
5074 % Used for @deftypemethod and @deftypeivar.
5075 % #1, #2, #3 are the common arguments (see \defparsebody).
5076 % #4, delimited by a space, is the class name.
5077 % #5 is the method's return type.
5079 \def\deftypemethparsebody#1#2#3#4 #5 {%
5080 \parsebodycommon{#1}{#2}{#3}%
5081 \def#2##1 ##2 {\defxbodycommon \activeparens \spacesplit{#3{##1}{##2}}}%
5082 \begingroup\obeylines\activeparens
5083 \spacesplit{#3{#4}{#5}}%
5086 % Used for @deftypeop. The change from \deftypemethparsebody is an
5087 % extra argument at the beginning which is the `category', instead of it
5088 % being the hardwired string `Method' or `Instance Variable'. We have
5089 % to account for this both in the \...x definition and in parsing the
5090 % input at hand. Thus also need a control sequence (passed as #5) for
5091 % the \E... definition to assign the category name to.
5093 \def\deftypeopparsebody#1#2#3#4#5 #6 {%
5094 \parsebodycommon{#1}{#2}{#3}%
5095 \def#2##1 ##2 ##3 {\def#4{##1}%
5096 \defxbodycommon \activeparens \spacesplit{#3{##2}{##3}}}%
5097 \begingroup\obeylines\activeparens
5098 \spacesplit{#3{#5}{#6}}%
5101 % For @defop.
5102 \def\defopparsebody #1#2#3#4#5 {%
5103 \parsebodycommon{#1}{#2}{#3}%
5104 \def#2##1 ##2 {\def#4{##1}%
5105 \defxbodycommon \activeparens \spacesplit{#3{##2}}}%
5106 \begingroup\obeylines\activeparens
5107 \spacesplit{#3{#5}}%
5110 % These parsing functions are similar to the preceding ones
5111 % except that they do not make parens into active characters.
5112 % These are used for "variables" since they have no arguments.
5114 \def\defvarparsebody #1#2#3{%
5115 \parsebodycommon{#1}{#2}{#3}%
5116 \def#2{\defxbodycommon \spacesplit#3}%
5117 \catcode\equalChar=\active
5118 \begingroup\obeylines
5119 \spacesplit#3%
5122 % @defopvar.
5123 \def\defopvarparsebody #1#2#3#4#5 {%
5124 \parsebodycommon{#1}{#2}{#3}%
5125 \def#2##1 ##2 {\def#4{##1}%
5126 \defxbodycommon \spacesplit{#3{##2}}}%
5127 \begingroup\obeylines
5128 \spacesplit{#3{#5}}%
5131 \def\defvrparsebody#1#2#3#4 {%
5132 \parsebodycommon{#1}{#2}{#3}%
5133 \def#2##1 {\defxbodycommon \spacesplit{#3{##1}}}%
5134 \begingroup\obeylines
5135 \spacesplit{#3{#4}}%
5138 % This loses on `@deftp {Data Type} {struct termios}' -- it thinks the
5139 % type is just `struct', because we lose the braces in `{struct
5140 % termios}' when \spacesplit reads its undelimited argument. Sigh.
5141 % \let\deftpparsebody=\defvrparsebody
5143 % So, to get around this, we put \empty in with the type name. That
5144 % way, TeX won't find exactly `{...}' as an undelimited argument, and
5145 % won't strip off the braces.
5147 \def\deftpparsebody #1#2#3#4 {%
5148 \parsebodycommon{#1}{#2}{#3}%
5149 \def#2##1 {\defxbodycommon \spacesplit{#3{##1}}}%
5150 \begingroup\obeylines
5151 \spacesplit{\parsetpheaderline{#3{#4}}}\empty
5154 % Fine, but then we have to eventually remove the \empty *and* the
5155 % braces (if any). That's what this does.
5157 \def\removeemptybraces\empty#1\relax{#1}
5159 % After \spacesplit has done its work, this is called -- #1 is the final
5160 % thing to call, #2 the type name (which starts with \empty), and #3
5161 % (which might be empty) the arguments.
5163 \def\parsetpheaderline#1#2#3{%
5164 #1{\removeemptybraces#2\relax}{#3}%
5167 % Split up #2 (the rest of the input line) at the first space token.
5168 % call #1 with two arguments:
5169 % the first is all of #2 before the space token,
5170 % the second is all of #2 after that space token.
5171 % If #2 contains no space token, all of it is passed as the first arg
5172 % and the second is passed as empty.
5174 {\obeylines %
5175 \gdef\spacesplit#1#2^^M{\endgroup\spacesplitx{#1}#2 \relax\spacesplitx}%
5176 \long\gdef\spacesplitx#1#2 #3#4\spacesplitx{%
5177 \ifx\relax #3%
5178 #1{#2}{}%
5179 \else %
5180 #1{#2}{#3#4}%
5181 \fi}%
5184 % Define @defun.
5186 % This is called to end the arguments processing for all the @def... commands.
5188 \def\defargscommonending{%
5189 \interlinepenalty = 10000
5190 \advance\rightskip by 0pt plus 1fil
5191 \endgraf
5192 \nobreak\vskip -\parskip
5193 \penalty 10002 % signal to \parsebodycommon.
5196 % This expands the args and terminates the paragraph they comprise.
5198 \def\defunargs#1{\functionparens \sl
5199 % Expand, preventing hyphenation at `-' chars.
5200 % Note that groups don't affect changes in \hyphenchar.
5201 % Set the font temporarily and use \font in case \setfont made \tensl a macro.
5202 {\tensl\hyphenchar\font=0}%
5204 {\tensl\hyphenchar\font=45}%
5205 \ifnum\parencount=0 \else \errmessage{Unbalanced parentheses in @def}\fi%
5206 \defargscommonending
5209 \def\deftypefunargs #1{%
5210 % Expand, preventing hyphenation at `-' chars.
5211 % Note that groups don't affect changes in \hyphenchar.
5212 % Use \boldbraxnoamp, not \functionparens, so that & is not special.
5213 \boldbraxnoamp
5214 \tclose{#1}% avoid \code because of side effects on active chars
5215 \defargscommonending
5218 % Do complete processing of one @defun or @defunx line already parsed.
5220 % @deffn Command forward-char nchars
5222 \def\deffn{\defmethparsebody\Edeffn\deffnx\deffnheader}
5224 \def\deffnheader #1#2#3{\doind {fn}{\code{#2}}%
5225 \begingroup\defname {#2}{#1}\defunargs{#3}\endgroup %
5226 \catcode\equalChar=\other % Turn off change made in \defparsebody
5229 % @defun == @deffn Function
5231 \def\defun{\defparsebody\Edefun\defunx\defunheader}
5233 \def\defunheader #1#2{\doind {fn}{\code{#1}}% Make entry in function index
5234 \begingroup\defname {#1}{\putwordDeffunc}%
5235 \defunargs {#2}\endgroup %
5236 \catcode\equalChar=\other % Turn off change made in \defparsebody
5239 % @deftypefun int foobar (int @var{foo}, float @var{bar})
5241 \def\deftypefun{\defparsebody\Edeftypefun\deftypefunx\deftypefunheader}
5243 % #1 is the data type. #2 is the name and args.
5244 \def\deftypefunheader #1#2{\deftypefunheaderx{#1}#2 \relax}
5245 % #1 is the data type, #2 the name, #3 the args.
5246 \def\deftypefunheaderx #1#2 #3\relax{%
5247 \doind {fn}{\code{#2}}% Make entry in function index
5248 \begingroup\defname {\defheaderxcond#1\relax$.$#2}{\putwordDeftypefun}%
5249 \deftypefunargs {#3}\endgroup %
5250 \catcode\equalChar=\other % Turn off change made in \defparsebody
5253 % @deftypefn {Library Function} int foobar (int @var{foo}, float @var{bar})
5255 \def\deftypefn{\defmethparsebody\Edeftypefn\deftypefnx\deftypefnheader}
5257 % \defheaderxcond#1\relax$.$
5258 % puts #1 in @code, followed by a space, but does nothing if #1 is null.
5259 \def\defheaderxcond#1#2$.${\ifx#1\relax\else\code{#1#2} \fi}
5261 % #1 is the classification. #2 is the data type. #3 is the name and args.
5262 \def\deftypefnheader #1#2#3{\deftypefnheaderx{#1}{#2}#3 \relax}
5263 % #1 is the classification, #2 the data type, #3 the name, #4 the args.
5264 \def\deftypefnheaderx #1#2#3 #4\relax{%
5265 \doind {fn}{\code{#3}}% Make entry in function index
5266 \begingroup
5267 \normalparens % notably, turn off `&' magic, which prevents
5268 % at least some C++ text from working
5269 \defname {\defheaderxcond#2\relax$.$#3}{#1}%
5270 \deftypefunargs {#4}\endgroup %
5271 \catcode\equalChar=\other % Turn off change made in \defparsebody
5274 % @defmac == @deffn Macro
5276 \def\defmac{\defparsebody\Edefmac\defmacx\defmacheader}
5278 \def\defmacheader #1#2{\doind {fn}{\code{#1}}% Make entry in function index
5279 \begingroup\defname {#1}{\putwordDefmac}%
5280 \defunargs {#2}\endgroup %
5281 \catcode\equalChar=\other % Turn off change made in \defparsebody
5284 % @defspec == @deffn Special Form
5286 \def\defspec{\defparsebody\Edefspec\defspecx\defspecheader}
5288 \def\defspecheader #1#2{\doind {fn}{\code{#1}}% Make entry in function index
5289 \begingroup\defname {#1}{\putwordDefspec}%
5290 \defunargs {#2}\endgroup %
5291 \catcode\equalChar=\other % Turn off change made in \defparsebody
5294 % @defop CATEGORY CLASS OPERATION ARG...
5296 \def\defop #1 {\def\defoptype{#1}%
5297 \defopparsebody\Edefop\defopx\defopheader\defoptype}
5299 \def\defopheader#1#2#3{%
5300 \dosubind{fn}{\code{#2}}{\putwordon\ \code{#1}}% function index entry
5301 \begingroup
5302 \defname{#2}{\defoptype\ \putwordon\ #1}%
5303 \defunargs{#3}%
5304 \endgroup
5307 % @deftypeop CATEGORY CLASS TYPE OPERATION ARG...
5309 \def\deftypeop #1 {\def\deftypeopcategory{#1}%
5310 \deftypeopparsebody\Edeftypeop\deftypeopx\deftypeopheader
5311 \deftypeopcategory}
5313 % #1 is the class name, #2 the data type, #3 the operation name, #4 the args.
5314 \def\deftypeopheader#1#2#3#4{%
5315 \dosubind{fn}{\code{#3}}{\putwordon\ \code{#1}}% entry in function index
5316 \begingroup
5317 \defname{\defheaderxcond#2\relax$.$#3}
5318 {\deftypeopcategory\ \putwordon\ \code{#1}}%
5319 \deftypefunargs{#4}%
5320 \endgroup
5323 % @deftypemethod CLASS TYPE METHOD ARG...
5325 \def\deftypemethod{%
5326 \deftypemethparsebody\Edeftypemethod\deftypemethodx\deftypemethodheader}
5328 % #1 is the class name, #2 the data type, #3 the method name, #4 the args.
5329 \def\deftypemethodheader#1#2#3#4{%
5330 \dosubind{fn}{\code{#3}}{\putwordon\ \code{#1}}% entry in function index
5331 \begingroup
5332 \defname{\defheaderxcond#2\relax$.$#3}{\putwordMethodon\ \code{#1}}%
5333 \deftypefunargs{#4}%
5334 \endgroup
5337 % @deftypeivar CLASS TYPE VARNAME
5339 \def\deftypeivar{%
5340 \deftypemethparsebody\Edeftypeivar\deftypeivarx\deftypeivarheader}
5342 % #1 is the class name, #2 the data type, #3 the variable name.
5343 \def\deftypeivarheader#1#2#3{%
5344 \dosubind{vr}{\code{#3}}{\putwordof\ \code{#1}}% entry in variable index
5345 \begingroup
5346 \defname{\defheaderxcond#2\relax$.$#3}
5347 {\putwordInstanceVariableof\ \code{#1}}%
5348 \defvarargs{#3}%
5349 \endgroup
5352 % @defmethod == @defop Method
5354 \def\defmethod{\defmethparsebody\Edefmethod\defmethodx\defmethodheader}
5356 % #1 is the class name, #2 the method name, #3 the args.
5357 \def\defmethodheader#1#2#3{%
5358 \dosubind{fn}{\code{#2}}{\putwordon\ \code{#1}}% entry in function index
5359 \begingroup
5360 \defname{#2}{\putwordMethodon\ \code{#1}}%
5361 \defunargs{#3}%
5362 \endgroup
5365 % @defcv {Class Option} foo-class foo-flag
5367 \def\defcv #1 {\def\defcvtype{#1}%
5368 \defopvarparsebody\Edefcv\defcvx\defcvarheader\defcvtype}
5370 \def\defcvarheader #1#2#3{%
5371 \dosubind{vr}{\code{#2}}{\putwordof\ \code{#1}}% variable index entry
5372 \begingroup
5373 \defname{#2}{\defcvtype\ \putwordof\ #1}%
5374 \defvarargs{#3}%
5375 \endgroup
5378 % @defivar CLASS VARNAME == @defcv {Instance Variable} CLASS VARNAME
5380 \def\defivar{\defvrparsebody\Edefivar\defivarx\defivarheader}
5382 \def\defivarheader#1#2#3{%
5383 \dosubind{vr}{\code{#2}}{\putwordof\ \code{#1}}% entry in var index
5384 \begingroup
5385 \defname{#2}{\putwordInstanceVariableof\ #1}%
5386 \defvarargs{#3}%
5387 \endgroup
5390 % @defvar
5391 % First, define the processing that is wanted for arguments of @defvar.
5392 % This is actually simple: just print them in roman.
5393 % This must expand the args and terminate the paragraph they make up
5394 \def\defvarargs #1{\normalparens #1%
5395 \defargscommonending
5398 % @defvr Counter foo-count
5400 \def\defvr{\defvrparsebody\Edefvr\defvrx\defvrheader}
5402 \def\defvrheader #1#2#3{\doind {vr}{\code{#2}}%
5403 \begingroup\defname {#2}{#1}\defvarargs{#3}\endgroup}
5405 % @defvar == @defvr Variable
5407 \def\defvar{\defvarparsebody\Edefvar\defvarx\defvarheader}
5409 \def\defvarheader #1#2{\doind {vr}{\code{#1}}% Make entry in var index
5410 \begingroup\defname {#1}{\putwordDefvar}%
5411 \defvarargs {#2}\endgroup %
5414 % @defopt == @defvr {User Option}
5416 \def\defopt{\defvarparsebody\Edefopt\defoptx\defoptheader}
5418 \def\defoptheader #1#2{\doind {vr}{\code{#1}}% Make entry in var index
5419 \begingroup\defname {#1}{\putwordDefopt}%
5420 \defvarargs {#2}\endgroup %
5423 % @deftypevar int foobar
5425 \def\deftypevar{\defvarparsebody\Edeftypevar\deftypevarx\deftypevarheader}
5427 % #1 is the data type. #2 is the name, perhaps followed by text that
5428 % is actually part of the data type, which should not be put into the index.
5429 \def\deftypevarheader #1#2{%
5430 \dovarind#2 \relax% Make entry in variables index
5431 \begingroup\defname {\defheaderxcond#1\relax$.$#2}{\putwordDeftypevar}%
5432 \defargscommonending
5433 \endgroup}
5434 \def\dovarind#1 #2\relax{\doind{vr}{\code{#1}}}
5436 % @deftypevr {Global Flag} int enable
5438 \def\deftypevr{\defvrparsebody\Edeftypevr\deftypevrx\deftypevrheader}
5440 \def\deftypevrheader #1#2#3{\dovarind#3 \relax%
5441 \begingroup\defname {\defheaderxcond#2\relax$.$#3}{#1}
5442 \defargscommonending
5443 \endgroup}
5445 % Now define @deftp
5446 % Args are printed in bold, a slight difference from @defvar.
5448 \def\deftpargs #1{\bf \defvarargs{#1}}
5450 % @deftp Class window height width ...
5452 \def\deftp{\deftpparsebody\Edeftp\deftpx\deftpheader}
5454 \def\deftpheader #1#2#3{\doind {tp}{\code{#2}}%
5455 \begingroup\defname {#2}{#1}\deftpargs{#3}\endgroup}
5457 % These definitions are used if you use @defunx (etc.)
5458 % anywhere other than immediately after a @defun or @defunx.
5460 \def\defcvx#1 {\errmessage{@defcvx in invalid context}}
5461 \def\deffnx#1 {\errmessage{@deffnx in invalid context}}
5462 \def\defivarx#1 {\errmessage{@defivarx in invalid context}}
5463 \def\defmacx#1 {\errmessage{@defmacx in invalid context}}
5464 \def\defmethodx#1 {\errmessage{@defmethodx in invalid context}}
5465 \def\defoptx #1 {\errmessage{@defoptx in invalid context}}
5466 \def\defopx#1 {\errmessage{@defopx in invalid context}}
5467 \def\defspecx#1 {\errmessage{@defspecx in invalid context}}
5468 \def\deftpx#1 {\errmessage{@deftpx in invalid context}}
5469 \def\deftypefnx#1 {\errmessage{@deftypefnx in invalid context}}
5470 \def\deftypefunx#1 {\errmessage{@deftypefunx in invalid context}}
5471 \def\deftypeivarx#1 {\errmessage{@deftypeivarx in invalid context}}
5472 \def\deftypemethodx#1 {\errmessage{@deftypemethodx in invalid context}}
5473 \def\deftypeopx#1 {\errmessage{@deftypeopx in invalid context}}
5474 \def\deftypevarx#1 {\errmessage{@deftypevarx in invalid context}}
5475 \def\deftypevrx#1 {\errmessage{@deftypevrx in invalid context}}
5476 \def\defunx#1 {\errmessage{@defunx in invalid context}}
5477 \def\defvarx#1 {\errmessage{@defvarx in invalid context}}
5478 \def\defvrx#1 {\errmessage{@defvrx in invalid context}}
5481 \message{macros,}
5482 % @macro.
5484 % To do this right we need a feature of e-TeX, \scantokens,
5485 % which we arrange to emulate with a temporary file in ordinary TeX.
5486 \ifx\eTeXversion\undefined
5487 \newwrite\macscribble
5488 \def\scanmacro#1{%
5489 \begingroup \newlinechar`\^^M
5490 % Undo catcode changes of \startcontents and \doprintindex
5491 \catcode`\@=0 \catcode`\\=\other \escapechar=`\@
5492 % Append \endinput to make sure that TeX does not see the ending newline.
5493 \toks0={#1\endinput}%
5494 \immediate\openout\macscribble=\jobname.tmp
5495 \immediate\write\macscribble{\the\toks0}%
5496 \immediate\closeout\macscribble
5497 \let\xeatspaces\eatspaces
5498 \input \jobname.tmp
5499 \endgroup
5501 \else
5502 \def\scanmacro#1{%
5503 \begingroup \newlinechar`\^^M
5504 % Undo catcode changes of \startcontents and \doprintindex
5505 \catcode`\@=0 \catcode`\\=\other \escapechar=`\@
5506 \let\xeatspaces\eatspaces\scantokens{#1\endinput}\endgroup}
5509 \newcount\paramno % Count of parameters
5510 \newtoks\macname % Macro name
5511 \newif\ifrecursive % Is it recursive?
5512 \def\macrolist{} % List of all defined macros in the form
5513 % \do\macro1\do\macro2...
5515 % Utility routines.
5516 % Thisdoes \let #1 = #2, except with \csnames.
5517 \def\cslet#1#2{%
5518 \expandafter\expandafter
5519 \expandafter\let
5520 \expandafter\expandafter
5521 \csname#1\endcsname
5522 \csname#2\endcsname}
5524 % Trim leading and trailing spaces off a string.
5525 % Concepts from aro-bend problem 15 (see CTAN).
5526 {\catcode`\@=11
5527 \gdef\eatspaces #1{\expandafter\trim@\expandafter{#1 }}
5528 \gdef\trim@ #1{\trim@@ @#1 @ #1 @ @@}
5529 \gdef\trim@@ #1@ #2@ #3@@{\trim@@@\empty #2 @}
5530 \def\unbrace#1{#1}
5531 \unbrace{\gdef\trim@@@ #1 } #2@{#1}
5534 % Trim a single trailing ^^M off a string.
5535 {\catcode`\^^M=\other \catcode`\Q=3%
5536 \gdef\eatcr #1{\eatcra #1Q^^MQ}%
5537 \gdef\eatcra#1^^MQ{\eatcrb#1Q}%
5538 \gdef\eatcrb#1Q#2Q{#1}%
5541 % Macro bodies are absorbed as an argument in a context where
5542 % all characters are catcode 10, 11 or 12, except \ which is active
5543 % (as in normal texinfo). It is necessary to change the definition of \.
5545 % It's necessary to have hard CRs when the macro is executed. This is
5546 % done by making ^^M (\endlinechar) catcode 12 when reading the macro
5547 % body, and then making it the \newlinechar in \scanmacro.
5549 \def\macrobodyctxt{%
5550 \catcode`\~=\other
5551 \catcode`\^=\other
5552 \catcode`\_=\other
5553 \catcode`\|=\other
5554 \catcode`\<=\other
5555 \catcode`\>=\other
5556 \catcode`\+=\other
5557 \catcode`\{=\other
5558 \catcode`\}=\other
5559 \catcode`\@=\other
5560 \catcode`\^^M=\other
5561 \usembodybackslash}
5563 \def\macroargctxt{%
5564 \catcode`\~=\other
5565 \catcode`\^=\other
5566 \catcode`\_=\other
5567 \catcode`\|=\other
5568 \catcode`\<=\other
5569 \catcode`\>=\other
5570 \catcode`\+=\other
5571 \catcode`\@=\other
5572 \catcode`\\=\other}
5574 % \mbodybackslash is the definition of \ in @macro bodies.
5575 % It maps \foo\ => \csname macarg.foo\endcsname => #N
5576 % where N is the macro parameter number.
5577 % We define \csname macarg.\endcsname to be \realbackslash, so
5578 % \\ in macro replacement text gets you a backslash.
5580 {\catcode`@=0 @catcode`@\=@active
5581 @gdef@usembodybackslash{@let\=@mbodybackslash}
5582 @gdef@mbodybackslash#1\{@csname macarg.#1@endcsname}
5584 \expandafter\def\csname macarg.\endcsname{\realbackslash}
5586 \def\macro{\recursivefalse\parsearg\macroxxx}
5587 \def\rmacro{\recursivetrue\parsearg\macroxxx}
5589 \def\macroxxx#1{%
5590 \getargs{#1}% now \macname is the macname and \argl the arglist
5591 \ifx\argl\empty % no arguments
5592 \paramno=0%
5593 \else
5594 \expandafter\parsemargdef \argl;%
5596 \if1\csname ismacro.\the\macname\endcsname
5597 \message{Warning: redefining \the\macname}%
5598 \else
5599 \expandafter\ifx\csname \the\macname\endcsname \relax
5600 \else \errmessage{Macro name \the\macname\space already defined}\fi
5601 \global\cslet{macsave.\the\macname}{\the\macname}%
5602 \global\expandafter\let\csname ismacro.\the\macname\endcsname=1%
5603 % Add the macroname to \macrolist
5604 \toks0 = \expandafter{\macrolist\do}%
5605 \xdef\macrolist{\the\toks0
5606 \expandafter\noexpand\csname\the\macname\endcsname}%
5608 \begingroup \macrobodyctxt
5609 \ifrecursive \expandafter\parsermacbody
5610 \else \expandafter\parsemacbody
5611 \fi}
5613 \def\unmacro{\parsearg\dounmacro}
5614 \def\dounmacro#1{%
5615 \if1\csname ismacro.#1\endcsname
5616 \global\cslet{#1}{macsave.#1}%
5617 \global\expandafter\let \csname ismacro.#1\endcsname=0%
5618 % Remove the macro name from \macrolist:
5619 \begingroup
5620 \expandafter\let\csname#1\endcsname \relax
5621 \let\do\unmacrodo
5622 \xdef\macrolist{\macrolist}%
5623 \endgroup
5624 \else
5625 \errmessage{Macro #1 not defined}%
5629 % Called by \do from \dounmacro on each macro. The idea is to omit any
5630 % macro definitions that have been changed to \relax.
5632 \def\unmacrodo#1{%
5633 \ifx#1\relax
5634 % remove this
5635 \else
5636 \noexpand\do \noexpand #1%
5640 % This makes use of the obscure feature that if the last token of a
5641 % <parameter list> is #, then the preceding argument is delimited by
5642 % an opening brace, and that opening brace is not consumed.
5643 \def\getargs#1{\getargsxxx#1{}}
5644 \def\getargsxxx#1#{\getmacname #1 \relax\getmacargs}
5645 \def\getmacname #1 #2\relax{\macname={#1}}
5646 \def\getmacargs#1{\def\argl{#1}}
5648 % Parse the optional {params} list. Set up \paramno and \paramlist
5649 % so \defmacro knows what to do. Define \macarg.blah for each blah
5650 % in the params list, to be ##N where N is the position in that list.
5651 % That gets used by \mbodybackslash (above).
5653 % We need to get `macro parameter char #' into several definitions.
5654 % The technique used is stolen from LaTeX: let \hash be something
5655 % unexpandable, insert that wherever you need a #, and then redefine
5656 % it to # just before using the token list produced.
5658 % The same technique is used to protect \eatspaces till just before
5659 % the macro is used.
5661 \def\parsemargdef#1;{\paramno=0\def\paramlist{}%
5662 \let\hash\relax\let\xeatspaces\relax\parsemargdefxxx#1,;,}
5663 \def\parsemargdefxxx#1,{%
5664 \if#1;\let\next=\relax
5665 \else \let\next=\parsemargdefxxx
5666 \advance\paramno by 1%
5667 \expandafter\edef\csname macarg.\eatspaces{#1}\endcsname
5668 {\xeatspaces{\hash\the\paramno}}%
5669 \edef\paramlist{\paramlist\hash\the\paramno,}%
5670 \fi\next}
5672 % These two commands read recursive and nonrecursive macro bodies.
5673 % (They're different since rec and nonrec macros end differently.)
5675 \long\def\parsemacbody#1@end macro%
5676 {\xdef\temp{\eatcr{#1}}\endgroup\defmacro}%
5677 \long\def\parsermacbody#1@end rmacro%
5678 {\xdef\temp{\eatcr{#1}}\endgroup\defmacro}%
5680 % This defines the macro itself. There are six cases: recursive and
5681 % nonrecursive macros of zero, one, and many arguments.
5682 % Much magic with \expandafter here.
5683 % \xdef is used so that macro definitions will survive the file
5684 % they're defined in; @include reads the file inside a group.
5685 \def\defmacro{%
5686 \let\hash=##% convert placeholders to macro parameter chars
5687 \ifrecursive
5688 \ifcase\paramno
5690 \expandafter\xdef\csname\the\macname\endcsname{%
5691 \noexpand\scanmacro{\temp}}%
5692 \or % 1
5693 \expandafter\xdef\csname\the\macname\endcsname{%
5694 \bgroup\noexpand\macroargctxt
5695 \noexpand\braceorline
5696 \expandafter\noexpand\csname\the\macname xxx\endcsname}%
5697 \expandafter\xdef\csname\the\macname xxx\endcsname##1{%
5698 \egroup\noexpand\scanmacro{\temp}}%
5699 \else % many
5700 \expandafter\xdef\csname\the\macname\endcsname{%
5701 \bgroup\noexpand\macroargctxt
5702 \noexpand\csname\the\macname xx\endcsname}%
5703 \expandafter\xdef\csname\the\macname xx\endcsname##1{%
5704 \expandafter\noexpand\csname\the\macname xxx\endcsname ##1,}%
5705 \expandafter\expandafter
5706 \expandafter\xdef
5707 \expandafter\expandafter
5708 \csname\the\macname xxx\endcsname
5709 \paramlist{\egroup\noexpand\scanmacro{\temp}}%
5711 \else
5712 \ifcase\paramno
5714 \expandafter\xdef\csname\the\macname\endcsname{%
5715 \noexpand\norecurse{\the\macname}%
5716 \noexpand\scanmacro{\temp}\egroup}%
5717 \or % 1
5718 \expandafter\xdef\csname\the\macname\endcsname{%
5719 \bgroup\noexpand\macroargctxt
5720 \noexpand\braceorline
5721 \expandafter\noexpand\csname\the\macname xxx\endcsname}%
5722 \expandafter\xdef\csname\the\macname xxx\endcsname##1{%
5723 \egroup
5724 \noexpand\norecurse{\the\macname}%
5725 \noexpand\scanmacro{\temp}\egroup}%
5726 \else % many
5727 \expandafter\xdef\csname\the\macname\endcsname{%
5728 \bgroup\noexpand\macroargctxt
5729 \expandafter\noexpand\csname\the\macname xx\endcsname}%
5730 \expandafter\xdef\csname\the\macname xx\endcsname##1{%
5731 \expandafter\noexpand\csname\the\macname xxx\endcsname ##1,}%
5732 \expandafter\expandafter
5733 \expandafter\xdef
5734 \expandafter\expandafter
5735 \csname\the\macname xxx\endcsname
5736 \paramlist{%
5737 \egroup
5738 \noexpand\norecurse{\the\macname}%
5739 \noexpand\scanmacro{\temp}\egroup}%
5741 \fi}
5743 \def\norecurse#1{\bgroup\cslet{#1}{macsave.#1}}
5745 % \braceorline decides whether the next nonwhitespace character is a
5746 % {. If so it reads up to the closing }, if not, it reads the whole
5747 % line. Whatever was read is then fed to the next control sequence
5748 % as an argument (by \parsebrace or \parsearg)
5749 \def\braceorline#1{\let\next=#1\futurelet\nchar\braceorlinexxx}
5750 \def\braceorlinexxx{%
5751 \ifx\nchar\bgroup\else
5752 \expandafter\parsearg
5753 \fi \next}
5755 % We mant to disable all macros during \shipout so that they are not
5756 % expanded by \write.
5757 \def\turnoffmacros{\begingroup \def\do##1{\let\noexpand##1=\relax}%
5758 \edef\next{\macrolist}\expandafter\endgroup\next}
5761 % @alias.
5762 % We need some trickery to remove the optional spaces around the equal
5763 % sign. Just make them active and then expand them all to nothing.
5764 \def\alias{\begingroup\obeyspaces\parsearg\aliasxxx}
5765 \def\aliasxxx #1{\aliasyyy#1\relax}
5766 \def\aliasyyy #1=#2\relax{\ignoreactivespaces
5767 \edef\next{\global\let\expandafter\noexpand\csname#1\endcsname=%
5768 \expandafter\noexpand\csname#2\endcsname}%
5769 \expandafter\endgroup\next}
5772 \message{cross references,}
5773 % @xref etc.
5775 \newwrite\auxfile
5777 \newif\ifhavexrefs % True if xref values are known.
5778 \newif\ifwarnedxrefs % True if we warned once that they aren't known.
5780 % @inforef is relatively simple.
5781 \def\inforef #1{\inforefzzz #1,,,,**}
5782 \def\inforefzzz #1,#2,#3,#4**{\putwordSee{} \putwordInfo{} \putwordfile{} \file{\ignorespaces #3{}},
5783 node \samp{\ignorespaces#1{}}}
5785 % @node's job is to define \lastnode.
5786 \def\node{\ENVcheck\parsearg\nodezzz}
5787 \def\nodezzz#1{\nodexxx [#1,]}
5788 \def\nodexxx[#1,#2]{\gdef\lastnode{#1}}
5789 \let\nwnode=\node
5790 \let\lastnode=\relax
5792 % The sectioning commands (@chapter, etc.) call these.
5793 \def\donoderef{%
5794 \ifx\lastnode\relax\else
5795 \expandafter\expandafter\expandafter\setref{\lastnode}%
5796 {Ysectionnumberandtype}%
5797 \global\let\lastnode=\relax
5800 \def\unnumbnoderef{%
5801 \ifx\lastnode\relax\else
5802 \expandafter\expandafter\expandafter\setref{\lastnode}{Ynothing}%
5803 \global\let\lastnode=\relax
5806 \def\appendixnoderef{%
5807 \ifx\lastnode\relax\else
5808 \expandafter\expandafter\expandafter\setref{\lastnode}%
5809 {Yappendixletterandtype}%
5810 \global\let\lastnode=\relax
5815 % @anchor{NAME} -- define xref target at arbitrary point.
5817 \newcount\savesfregister
5818 \gdef\savesf{\relax \ifhmode \savesfregister=\spacefactor \fi}
5819 \gdef\restoresf{\relax \ifhmode \spacefactor=\savesfregister \fi}
5820 \gdef\anchor#1{\savesf \setref{#1}{Ynothing}\restoresf \ignorespaces}
5822 % \setref{NAME}{SNT} defines a cross-reference point NAME (a node or an
5823 % anchor), namely NAME-title (the corresponding @chapter/etc. name),
5824 % NAME-pg (the page number), and NAME-snt (section number and type).
5825 % Called from \foonoderef.
5827 % We have to set \indexdummies so commands such as @code in a section
5828 % title aren't expanded. It would be nicer not to expand the titles in
5829 % the first place, but there's so many layers that that is hard to do.
5831 % Likewise, use \turnoffactive so that punctuation chars such as underscore
5832 % and backslash work in node names.
5834 \def\setref#1#2{{%
5835 \atdummies
5836 \pdfmkdest{#1}%
5838 \turnoffactive
5839 \dosetq{#1-title}{Ytitle}%
5840 \dosetq{#1-pg}{Ypagenumber}%
5841 \dosetq{#1-snt}{#2}%
5844 % @xref, @pxref, and @ref generate cross-references. For \xrefX, #1 is
5845 % the node name, #2 the name of the Info cross-reference, #3 the printed
5846 % node name, #4 the name of the Info file, #5 the name of the printed
5847 % manual. All but the node name can be omitted.
5849 \def\pxref#1{\putwordsee{} \xrefX[#1,,,,,,,]}
5850 \def\xref#1{\putwordSee{} \xrefX[#1,,,,,,,]}
5851 \def\ref#1{\xrefX[#1,,,,,,,]}
5852 \def\xrefX[#1,#2,#3,#4,#5,#6]{\begingroup
5853 \unsepspaces
5854 \def\printedmanual{\ignorespaces #5}%
5855 \def\printednodename{\ignorespaces #3}%
5856 \setbox1=\hbox{\printedmanual}%
5857 \setbox0=\hbox{\printednodename}%
5858 \ifdim \wd0 = 0pt
5859 % No printed node name was explicitly given.
5860 \expandafter\ifx\csname SETxref-automatic-section-title\endcsname\relax
5861 % Use the node name inside the square brackets.
5862 \def\printednodename{\ignorespaces #1}%
5863 \else
5864 % Use the actual chapter/section title appear inside
5865 % the square brackets. Use the real section title if we have it.
5866 \ifdim \wd1 > 0pt
5867 % It is in another manual, so we don't have it.
5868 \def\printednodename{\ignorespaces #1}%
5869 \else
5870 \ifhavexrefs
5871 % We know the real title if we have the xref values.
5872 \def\printednodename{\refx{#1-title}{}}%
5873 \else
5874 % Otherwise just copy the Info node name.
5875 \def\printednodename{\ignorespaces #1}%
5876 \fi%
5881 % If we use \unhbox0 and \unhbox1 to print the node names, TeX does not
5882 % insert empty discretionaries after hyphens, which means that it will
5883 % not find a line break at a hyphen in a node names. Since some manuals
5884 % are best written with fairly long node names, containing hyphens, this
5885 % is a loss. Therefore, we give the text of the node name again, so it
5886 % is as if TeX is seeing it for the first time.
5887 \ifpdf
5888 \leavevmode
5889 \getfilename{#4}%
5890 {\turnoffactive \otherbackslash
5891 \ifnum\filenamelength>0
5892 \startlink attr{/Border [0 0 0]}%
5893 goto file{\the\filename.pdf} name{#1}%
5894 \else
5895 \startlink attr{/Border [0 0 0]}%
5896 goto name{#1}%
5899 \linkcolor
5902 \ifdim \wd1 > 0pt
5903 \putwordsection{} ``\printednodename'' \putwordin{} \cite{\printedmanual}%
5904 \else
5905 % _ (for example) has to be the character _ for the purposes of the
5906 % control sequence corresponding to the node, but it has to expand
5907 % into the usual \leavevmode...\vrule stuff for purposes of
5908 % printing. So we \turnoffactive for the \refx-snt, back on for the
5909 % printing, back off for the \refx-pg.
5910 {\turnoffactive \otherbackslash
5911 % Only output a following space if the -snt ref is nonempty; for
5912 % @unnumbered and @anchor, it won't be.
5913 \setbox2 = \hbox{\ignorespaces \refx{#1-snt}{}}%
5914 \ifdim \wd2 > 0pt \refx{#1-snt}\space\fi
5916 % [mynode],
5917 [\printednodename],\space
5918 % page 3
5919 \turnoffactive \otherbackslash \putwordpage\tie\refx{#1-pg}{}%
5921 \endlink
5922 \endgroup}
5924 % \dosetq is called from \setref to do the actual \write (\iflinks).
5926 \def\dosetq#1#2{%
5927 {\let\folio=0%
5928 \edef\next{\write\auxfile{\internalsetq{#1}{#2}}}%
5929 \iflinks \next \fi
5933 % \internalsetq{foo}{page} expands into
5934 % CHARACTERS @xrdef{foo}{...expansion of \page...}
5935 \def\internalsetq#1#2{@xrdef{#1}{\csname #2\endcsname}}
5937 % Things to be expanded by \internalsetq.
5939 \def\Ypagenumber{\folio}
5940 \def\Ytitle{\thissection}
5941 \def\Ynothing{}
5942 \def\Ysectionnumberandtype{%
5943 \ifnum\secno=0
5944 \putwordChapter@tie \the\chapno
5945 \else \ifnum\subsecno=0
5946 \putwordSection@tie \the\chapno.\the\secno
5947 \else \ifnum\subsubsecno=0
5948 \putwordSection@tie \the\chapno.\the\secno.\the\subsecno
5949 \else
5950 \putwordSection@tie \the\chapno.\the\secno.\the\subsecno.\the\subsubsecno
5951 \fi\fi\fi
5954 \def\Yappendixletterandtype{%
5955 \ifnum\secno=0
5956 \putwordAppendix@tie @char\the\appendixno{}%
5957 \else \ifnum\subsecno=0
5958 \putwordSection@tie @char\the\appendixno.\the\secno
5959 \else \ifnum\subsubsecno=0
5960 \putwordSection@tie @char\the\appendixno.\the\secno.\the\subsecno
5961 \else
5962 \putwordSection@tie
5963 @char\the\appendixno.\the\secno.\the\subsecno.\the\subsubsecno
5964 \fi\fi\fi
5967 % Use TeX 3.0's \inputlineno to get the line number, for better error
5968 % messages, but if we're using an old version of TeX, don't do anything.
5970 \ifx\inputlineno\thisisundefined
5971 \let\linenumber = \empty % Pre-3.0.
5972 \else
5973 \def\linenumber{\the\inputlineno:\space}
5976 % Define \refx{NAME}{SUFFIX} to reference a cross-reference string named NAME.
5977 % If its value is nonempty, SUFFIX is output afterward.
5979 \def\refx#1#2{%
5981 \indexnofonts
5982 \otherbackslash
5983 \expandafter\global\expandafter\let\expandafter\thisrefX
5984 \csname X#1\endcsname
5986 \ifx\thisrefX\relax
5987 % If not defined, say something at least.
5988 \angleleft un\-de\-fined\angleright
5989 \iflinks
5990 \ifhavexrefs
5991 \message{\linenumber Undefined cross reference `#1'.}%
5992 \else
5993 \ifwarnedxrefs\else
5994 \global\warnedxrefstrue
5995 \message{Cross reference values unknown; you must run TeX again.}%
5999 \else
6000 % It's defined, so just use it.
6001 \thisrefX
6003 #2% Output the suffix in any case.
6006 % This is the macro invoked by entries in the aux file.
6008 \def\xrdef#1{\expandafter\gdef\csname X#1\endcsname}
6010 % Read the last existing aux file, if any. No error if none exists.
6011 \def\readauxfile{\begingroup
6012 \catcode`\^^@=\other
6013 \catcode`\^^A=\other
6014 \catcode`\^^B=\other
6015 \catcode`\^^C=\other
6016 \catcode`\^^D=\other
6017 \catcode`\^^E=\other
6018 \catcode`\^^F=\other
6019 \catcode`\^^G=\other
6020 \catcode`\^^H=\other
6021 \catcode`\^^K=\other
6022 \catcode`\^^L=\other
6023 \catcode`\^^N=\other
6024 \catcode`\^^P=\other
6025 \catcode`\^^Q=\other
6026 \catcode`\^^R=\other
6027 \catcode`\^^S=\other
6028 \catcode`\^^T=\other
6029 \catcode`\^^U=\other
6030 \catcode`\^^V=\other
6031 \catcode`\^^W=\other
6032 \catcode`\^^X=\other
6033 \catcode`\^^Z=\other
6034 \catcode`\^^[=\other
6035 \catcode`\^^\=\other
6036 \catcode`\^^]=\other
6037 \catcode`\^^^=\other
6038 \catcode`\^^_=\other
6039 % It was suggested to set the catcode of ^ to 7, which would allow ^^e4 etc.
6040 % in xref tags, i.e., node names. But since ^^e4 notation isn't
6041 % supported in the main text, it doesn't seem desirable. Furthermore,
6042 % that is not enough: for node names that actually contain a ^
6043 % character, we would end up writing a line like this: 'xrdef {'hat
6044 % b-title}{'hat b} and \xrdef does a \csname...\endcsname on the first
6045 % argument, and \hat is not an expandable control sequence. It could
6046 % all be worked out, but why? Either we support ^^ or we don't.
6048 % The other change necessary for this was to define \auxhat:
6049 % \def\auxhat{\def^{'hat }}% extra space so ok if followed by letter
6050 % and then to call \auxhat in \setq.
6052 \catcode`\^=\other
6054 % Special characters. Should be turned off anyway, but...
6055 \catcode`\~=\other
6056 \catcode`\[=\other
6057 \catcode`\]=\other
6058 \catcode`\"=\other
6059 \catcode`\_=\other
6060 \catcode`\|=\other
6061 \catcode`\<=\other
6062 \catcode`\>=\other
6063 \catcode`\$=\other
6064 \catcode`\#=\other
6065 \catcode`\&=\other
6066 \catcode`\%=\other
6067 \catcode`+=\other % avoid \+ for paranoia even though we've turned it off
6069 % Make the characters 128-255 be printing characters
6071 \count 1=128
6072 \def\loop{%
6073 \catcode\count 1=\other
6074 \advance\count 1 by 1
6075 \ifnum \count 1<256 \loop \fi
6079 % Turn off \ as an escape so we do not lose on
6080 % entries which were dumped with control sequences in their names.
6081 % For example, @xrdef{$\leq $-fun}{page ...} made by @defun ^^
6082 % Reference to such entries still does not work the way one would wish,
6083 % but at least they do not bomb out when the aux file is read in.
6084 \catcode`\\=\other
6086 % @ is our escape character in .aux files.
6087 \catcode`\{=1
6088 \catcode`\}=2
6089 \catcode`\@=0
6091 \openin 1 \jobname.aux
6092 \ifeof 1 \else
6093 \closein 1
6094 \input \jobname.aux
6095 \global\havexrefstrue
6096 \global\warnedobstrue
6098 % Open the new aux file. TeX will close it automatically at exit.
6099 \openout\auxfile=\jobname.aux
6100 \endgroup}
6103 % Footnotes.
6105 \newcount \footnoteno
6107 % The trailing space in the following definition for supereject is
6108 % vital for proper filling; pages come out unaligned when you do a
6109 % pagealignmacro call if that space before the closing brace is
6110 % removed. (Generally, numeric constants should always be followed by a
6111 % space to prevent strange expansion errors.)
6112 \def\supereject{\par\penalty -20000\footnoteno =0 }
6114 % @footnotestyle is meaningful for info output only.
6115 \let\footnotestyle=\comment
6117 \let\ptexfootnote=\footnote
6119 {\catcode `\@=11
6121 % Auto-number footnotes. Otherwise like plain.
6122 \gdef\footnote{%
6123 \global\advance\footnoteno by \@ne
6124 \edef\thisfootno{$^{\the\footnoteno}$}%
6126 % In case the footnote comes at the end of a sentence, preserve the
6127 % extra spacing after we do the footnote number.
6128 \let\@sf\empty
6129 \ifhmode\edef\@sf{\spacefactor\the\spacefactor}\/\fi
6131 % Remove inadvertent blank space before typesetting the footnote number.
6132 \unskip
6133 \thisfootno\@sf
6134 \dofootnote
6137 % Don't bother with the trickery in plain.tex to not require the
6138 % footnote text as a parameter. Our footnotes don't need to be so general.
6140 % Oh yes, they do; otherwise, @ifset and anything else that uses
6141 % \parseargline fail inside footnotes because the tokens are fixed when
6142 % the footnote is read. --karl, 16nov96.
6144 % The start of the footnote looks usually like this:
6145 \gdef\startfootins{\insert\footins\bgroup}
6147 % ... but this macro is redefined inside @multitable.
6149 \gdef\dofootnote{%
6150 \startfootins
6151 % We want to typeset this text as a normal paragraph, even if the
6152 % footnote reference occurs in (for example) a display environment.
6153 % So reset some parameters.
6154 \hsize=\pagewidth
6155 \interlinepenalty\interfootnotelinepenalty
6156 \splittopskip\ht\strutbox % top baseline for broken footnotes
6157 \splitmaxdepth\dp\strutbox
6158 \floatingpenalty\@MM
6159 \leftskip\z@skip
6160 \rightskip\z@skip
6161 \spaceskip\z@skip
6162 \xspaceskip\z@skip
6163 \parindent\defaultparindent
6165 \smallfonts \rm
6167 % Because we use hanging indentation in footnotes, a @noindent appears
6168 % to exdent this text, so make it be a no-op. makeinfo does not use
6169 % hanging indentation so @noindent can still be needed within footnote
6170 % text after an @example or the like (not that this is good style).
6171 \let\noindent = \relax
6173 % Hang the footnote text off the number. Use \everypar in case the
6174 % footnote extends for more than one paragraph.
6175 \everypar = {\hang}%
6176 \textindent{\thisfootno}%
6178 % Don't crash into the line above the footnote text. Since this
6179 % expands into a box, it must come within the paragraph, lest it
6180 % provide a place where TeX can split the footnote.
6181 \footstrut
6182 \futurelet\next\fo@t
6184 }%end \catcode `\@=11
6186 % @| inserts a changebar to the left of the current line. It should
6187 % surround any changed text. This approach does *not* work if the
6188 % change spans more than two lines of output. To handle that, we would
6189 % have adopt a much more difficult approach (putting marks into the main
6190 % vertical list for the beginning and end of each change).
6192 \def\|{%
6193 % \vadjust can only be used in horizontal mode.
6194 \leavevmode
6196 % Append this vertical mode material after the current line in the output.
6197 \vadjust{%
6198 % We want to insert a rule with the height and depth of the current
6199 % leading; that is exactly what \strutbox is supposed to record.
6200 \vskip-\baselineskip
6202 % \vadjust-items are inserted at the left edge of the type. So
6203 % the \llap here moves out into the left-hand margin.
6204 \llap{%
6206 % For a thicker or thinner bar, change the `1pt'.
6207 \vrule height\baselineskip width1pt
6209 % This is the space between the bar and the text.
6210 \hskip 12pt
6215 % For a final copy, take out the rectangles
6216 % that mark overfull boxes (in case you have decided
6217 % that the text looks ok even though it passes the margin).
6219 \def\finalout{\overfullrule=0pt}
6221 % @image. We use the macros from epsf.tex to support this.
6222 % If epsf.tex is not installed and @image is used, we complain.
6224 % Check for and read epsf.tex up front. If we read it only at @image
6225 % time, we might be inside a group, and then its definitions would get
6226 % undone and the next image would fail.
6227 \openin 1 = epsf.tex
6228 \ifeof 1 \else
6229 \closein 1
6230 % Do not bother showing banner with epsf.tex v2.7k (available in
6231 % doc/epsf.tex and on ctan).
6232 \def\epsfannounce{\toks0 = }%
6233 \input epsf.tex
6236 % We will only complain once about lack of epsf.tex.
6237 \newif\ifwarnednoepsf
6238 \newhelp\noepsfhelp{epsf.tex must be installed for images to
6239 work. It is also included in the Texinfo distribution, or you can get
6240 it from ftp://tug.org/tex/epsf.tex.}
6242 \def\image#1{%
6243 \ifx\epsfbox\undefined
6244 \ifwarnednoepsf \else
6245 \errhelp = \noepsfhelp
6246 \errmessage{epsf.tex not found, images will be ignored}%
6247 \global\warnednoepsftrue
6249 \else
6250 \imagexxx #1,,,,,\finish
6254 % Arguments to @image:
6255 % #1 is (mandatory) image filename; we tack on .eps extension.
6256 % #2 is (optional) width, #3 is (optional) height.
6257 % #4 is (ignored optional) html alt text.
6258 % #5 is (ignored optional) extension.
6259 % #6 is just the usual extra ignored arg for parsing this stuff.
6260 \newif\ifimagevmode
6261 \def\imagexxx#1,#2,#3,#4,#5,#6\finish{\begingroup
6262 \catcode`\^^M = 5 % in case we're inside an example
6263 \normalturnoffactive % allow _ et al. in names
6264 % If the image is by itself, center it.
6265 \ifvmode
6266 \imagevmodetrue
6267 \nobreak\bigskip
6268 % Usually we'll have text after the image which will insert
6269 % \parskip glue, so insert it here too to equalize the space
6270 % above and below.
6271 \nobreak\vskip\parskip
6272 \nobreak
6273 \line\bgroup\hss
6276 % Output the image.
6277 \ifpdf
6278 \dopdfimage{#1}{#2}{#3}%
6279 \else
6280 % \epsfbox itself resets \epsf?size at each figure.
6281 \setbox0 = \hbox{\ignorespaces #2}\ifdim\wd0 > 0pt \epsfxsize=#2\relax \fi
6282 \setbox0 = \hbox{\ignorespaces #3}\ifdim\wd0 > 0pt \epsfysize=#3\relax \fi
6283 \epsfbox{#1.eps}%
6286 \ifimagevmode \hss \egroup \bigbreak \fi % space after the image
6287 \endgroup}
6290 \message{localization,}
6291 % and i18n.
6293 % @documentlanguage is usually given very early, just after
6294 % @setfilename. If done too late, it may not override everything
6295 % properly. Single argument is the language abbreviation.
6296 % It would be nice if we could set up a hyphenation file here.
6298 \def\documentlanguage{\parsearg\dodocumentlanguage}
6299 \def\dodocumentlanguage#1{%
6300 \tex % read txi-??.tex file in plain TeX.
6301 % Read the file if it exists.
6302 \openin 1 txi-#1.tex
6303 \ifeof1
6304 \errhelp = \nolanghelp
6305 \errmessage{Cannot read language file txi-#1.tex}%
6306 \let\temp = \relax
6307 \else
6308 \def\temp{\input txi-#1.tex }%
6310 \temp
6311 \endgroup
6313 \newhelp\nolanghelp{The given language definition file cannot be found or
6314 is empty. Maybe you need to install it? In the current directory
6315 should work if nowhere else does.}
6318 % @documentencoding should change something in TeX eventually, most
6319 % likely, but for now just recognize it.
6320 \let\documentencoding = \comment
6323 % Page size parameters.
6325 \newdimen\defaultparindent \defaultparindent = 15pt
6327 \chapheadingskip = 15pt plus 4pt minus 2pt
6328 \secheadingskip = 12pt plus 3pt minus 2pt
6329 \subsecheadingskip = 9pt plus 2pt minus 2pt
6331 % Prevent underfull vbox error messages.
6332 \vbadness = 10000
6334 % Don't be so finicky about underfull hboxes, either.
6335 \hbadness = 2000
6337 % Following George Bush, just get rid of widows and orphans.
6338 \widowpenalty=10000
6339 \clubpenalty=10000
6341 % Use TeX 3.0's \emergencystretch to help line breaking, but if we're
6342 % using an old version of TeX, don't do anything. We want the amount of
6343 % stretch added to depend on the line length, hence the dependence on
6344 % \hsize. We call this whenever the paper size is set.
6346 \def\setemergencystretch{%
6347 \ifx\emergencystretch\thisisundefined
6348 % Allow us to assign to \emergencystretch anyway.
6349 \def\emergencystretch{\dimen0}%
6350 \else
6351 \emergencystretch = .15\hsize
6355 % Parameters in order: 1) textheight; 2) textwidth; 3) voffset;
6356 % 4) hoffset; 5) binding offset; 6) topskip; 7) physical page height; 8)
6357 % physical page width.
6359 % We also call \setleading{\textleading}, so the caller should define
6360 % \textleading. The caller should also set \parskip.
6362 \def\internalpagesizes#1#2#3#4#5#6#7#8{%
6363 \voffset = #3\relax
6364 \topskip = #6\relax
6365 \splittopskip = \topskip
6367 \vsize = #1\relax
6368 \advance\vsize by \topskip
6369 \outervsize = \vsize
6370 \advance\outervsize by 2\topandbottommargin
6371 \pageheight = \vsize
6373 \hsize = #2\relax
6374 \outerhsize = \hsize
6375 \advance\outerhsize by 0.5in
6376 \pagewidth = \hsize
6378 \normaloffset = #4\relax
6379 \bindingoffset = #5\relax
6381 \ifpdf
6382 \pdfpageheight #7\relax
6383 \pdfpagewidth #8\relax
6386 \setleading{\textleading}
6388 \parindent = \defaultparindent
6389 \setemergencystretch
6392 % @letterpaper (the default).
6393 \def\letterpaper{{\globaldefs = 1
6394 \parskip = 3pt plus 2pt minus 1pt
6395 \textleading = 13.2pt
6397 % If page is nothing but text, make it come out even.
6398 \internalpagesizes{46\baselineskip}{6in}%
6399 {\voffset}{.25in}%
6400 {\bindingoffset}{36pt}%
6401 {11in}{8.5in}%
6404 % Use @smallbook to reset parameters for 7x9.5 (or so) format.
6405 \def\smallbook{{\globaldefs = 1
6406 \parskip = 2pt plus 1pt
6407 \textleading = 12pt
6409 \internalpagesizes{7.5in}{5in}%
6410 {\voffset}{.25in}%
6411 {\bindingoffset}{16pt}%
6412 {9.25in}{7in}%
6414 \lispnarrowing = 0.3in
6415 \tolerance = 700
6416 \hfuzz = 1pt
6417 \contentsrightmargin = 0pt
6418 \defbodyindent = .5cm
6421 % Use @afourpaper to print on European A4 paper.
6422 \def\afourpaper{{\globaldefs = 1
6423 \parskip = 3pt plus 2pt minus 1pt
6424 \textleading = 13.2pt
6426 % Double-side printing via postscript on Laserjet 4050
6427 % prints double-sided nicely when \bindingoffset=10mm and \hoffset=-6mm.
6428 % To change the settings for a different printer or situation, adjust
6429 % \normaloffset until the front-side and back-side texts align. Then
6430 % do the same for \bindingoffset. You can set these for testing in
6431 % your texinfo source file like this:
6432 % @tex
6433 % \global\normaloffset = -6mm
6434 % \global\bindingoffset = 10mm
6435 % @end tex
6436 \internalpagesizes{51\baselineskip}{160mm}
6437 {\voffset}{\hoffset}%
6438 {\bindingoffset}{44pt}%
6439 {297mm}{210mm}%
6441 \tolerance = 700
6442 \hfuzz = 1pt
6443 \contentsrightmargin = 0pt
6444 \defbodyindent = 5mm
6447 % Use @afivepaper to print on European A5 paper.
6448 % From romildo@urano.iceb.ufop.br, 2 July 2000.
6449 % He also recommends making @example and @lisp be small.
6450 \def\afivepaper{{\globaldefs = 1
6451 \parskip = 2pt plus 1pt minus 0.1pt
6452 \textleading = 12.5pt
6454 \internalpagesizes{160mm}{120mm}%
6455 {\voffset}{\hoffset}%
6456 {\bindingoffset}{8pt}%
6457 {210mm}{148mm}%
6459 \lispnarrowing = 0.2in
6460 \tolerance = 800
6461 \hfuzz = 1.2pt
6462 \contentsrightmargin = 0pt
6463 \defbodyindent = 2mm
6464 \tableindent = 12mm
6467 % A specific text layout, 24x15cm overall, intended for A4 paper.
6468 \def\afourlatex{{\globaldefs = 1
6469 \afourpaper
6470 \internalpagesizes{237mm}{150mm}%
6471 {\voffset}{4.6mm}%
6472 {\bindingoffset}{7mm}%
6473 {297mm}{210mm}%
6475 % Must explicitly reset to 0 because we call \afourpaper.
6476 \globaldefs = 0
6479 % Use @afourwide to print on A4 paper in landscape format.
6480 \def\afourwide{{\globaldefs = 1
6481 \afourpaper
6482 \internalpagesizes{241mm}{165mm}%
6483 {\voffset}{-2.95mm}%
6484 {\bindingoffset}{7mm}%
6485 {297mm}{210mm}%
6486 \globaldefs = 0
6489 % @pagesizes TEXTHEIGHT[,TEXTWIDTH]
6490 % Perhaps we should allow setting the margins, \topskip, \parskip,
6491 % and/or leading, also. Or perhaps we should compute them somehow.
6493 \def\pagesizes{\parsearg\pagesizesxxx}
6494 \def\pagesizesxxx#1{\pagesizesyyy #1,,\finish}
6495 \def\pagesizesyyy#1,#2,#3\finish{{%
6496 \setbox0 = \hbox{\ignorespaces #2}\ifdim\wd0 > 0pt \hsize=#2\relax \fi
6497 \globaldefs = 1
6499 \parskip = 3pt plus 2pt minus 1pt
6500 \setleading{\textleading}%
6502 \dimen0 = #1
6503 \advance\dimen0 by \voffset
6505 \dimen2 = \hsize
6506 \advance\dimen2 by \normaloffset
6508 \internalpagesizes{#1}{\hsize}%
6509 {\voffset}{\normaloffset}%
6510 {\bindingoffset}{44pt}%
6511 {\dimen0}{\dimen2}%
6514 % Set default to letter.
6516 \letterpaper
6519 \message{and turning on texinfo input format.}
6521 % Define macros to output various characters with catcode for normal text.
6522 \catcode`\"=\other
6523 \catcode`\~=\other
6524 \catcode`\^=\other
6525 \catcode`\_=\other
6526 \catcode`\|=\other
6527 \catcode`\<=\other
6528 \catcode`\>=\other
6529 \catcode`\+=\other
6530 \catcode`\$=\other
6531 \def\normaldoublequote{"}
6532 \def\normaltilde{~}
6533 \def\normalcaret{^}
6534 \def\normalunderscore{_}
6535 \def\normalverticalbar{|}
6536 \def\normalless{<}
6537 \def\normalgreater{>}
6538 \def\normalplus{+}
6539 \def\normaldollar{$}%$ font-lock fix
6541 % This macro is used to make a character print one way in ttfont
6542 % where it can probably just be output, and another way in other fonts,
6543 % where something hairier probably needs to be done.
6545 % #1 is what to print if we are indeed using \tt; #2 is what to print
6546 % otherwise. Since all the Computer Modern typewriter fonts have zero
6547 % interword stretch (and shrink), and it is reasonable to expect all
6548 % typewriter fonts to have this, we can check that font parameter.
6550 \def\ifusingtt#1#2{\ifdim \fontdimen3\font=0pt #1\else #2\fi}
6552 % Same as above, but check for italic font. Actually this also catches
6553 % non-italic slanted fonts since it is impossible to distinguish them from
6554 % italic fonts. But since this is only used by $ and it uses \sl anyway
6555 % this is not a problem.
6556 \def\ifusingit#1#2{\ifdim \fontdimen1\font>0pt #1\else #2\fi}
6558 % Turn off all special characters except @
6559 % (and those which the user can use as if they were ordinary).
6560 % Most of these we simply print from the \tt font, but for some, we can
6561 % use math or other variants that look better in normal text.
6563 \catcode`\"=\active
6564 \def\activedoublequote{{\tt\char34}}
6565 \let"=\activedoublequote
6566 \catcode`\~=\active
6567 \def~{{\tt\char126}}
6568 \chardef\hat=`\^
6569 \catcode`\^=\active
6570 \def^{{\tt \hat}}
6572 \catcode`\_=\active
6573 \def_{\ifusingtt\normalunderscore\_}
6574 % Subroutine for the previous macro.
6575 \def\_{\leavevmode \kern.07em \vbox{\hrule width.3em height.1ex}\kern .07em }
6577 \catcode`\|=\active
6578 \def|{{\tt\char124}}
6579 \chardef \less=`\<
6580 \catcode`\<=\active
6581 \def<{{\tt \less}}
6582 \chardef \gtr=`\>
6583 \catcode`\>=\active
6584 \def>{{\tt \gtr}}
6585 \catcode`\+=\active
6586 \def+{{\tt \char 43}}
6587 \catcode`\$=\active
6588 \def${\ifusingit{{\sl\$}}\normaldollar}%$ font-lock fix
6590 % Set up an active definition for =, but don't enable it most of the time.
6591 {\catcode`\==\active
6592 \global\def={{\tt \char 61}}}
6594 \catcode`+=\active
6595 \catcode`\_=\active
6597 % If a .fmt file is being used, characters that might appear in a file
6598 % name cannot be active until we have parsed the command line.
6599 % So turn them off again, and have \everyjob (or @setfilename) turn them on.
6600 % \otherifyactive is called near the end of this file.
6601 \def\otherifyactive{\catcode`+=\other \catcode`\_=\other}
6603 \catcode`\@=0
6605 % \rawbackslashxx outputs one backslash character in current font,
6606 % as in \char`\\.
6607 \global\chardef\rawbackslashxx=`\\
6609 % \rawbackslash defines an active \ to do \rawbackslashxx.
6610 % \otherbackslash defines an active \ to be a literal `\' character with
6611 % catcode other.
6612 {\catcode`\\=\active
6613 @gdef@rawbackslash{@let\=@rawbackslashxx}
6614 @gdef@otherbackslash{@let\=@realbackslash}
6617 % \realbackslash is an actual character `\' with catcode other.
6618 {\catcode`\\=\other @gdef@realbackslash{\}}
6620 % \normalbackslash outputs one backslash in fixed width font.
6621 \def\normalbackslash{{\tt\rawbackslashxx}}
6623 \catcode`\\=\active
6625 % Used sometimes to turn off (effectively) the active characters
6626 % even after parsing them.
6627 @def@turnoffactive{%
6628 @let"=@normaldoublequote
6629 @let\=@realbackslash
6630 @let~=@normaltilde
6631 @let^=@normalcaret
6632 @let_=@normalunderscore
6633 @let|=@normalverticalbar
6634 @let<=@normalless
6635 @let>=@normalgreater
6636 @let+=@normalplus
6637 @let$=@normaldollar %$ font-lock fix
6640 % Same as @turnoffactive except outputs \ as {\tt\char`\\} instead of
6641 % the literal character `\'. (Thus, \ is not expandable when this is in
6642 % effect.)
6644 @def@normalturnoffactive{@turnoffactive @let\=@normalbackslash}
6646 % Make _ and + \other characters, temporarily.
6647 % This is canceled by @fixbackslash.
6648 @otherifyactive
6650 % If a .fmt file is being used, we don't want the `\input texinfo' to show up.
6651 % That is what \eatinput is for; after that, the `\' should revert to printing
6652 % a backslash.
6654 @gdef@eatinput input texinfo{@fixbackslash}
6655 @global@let\ = @eatinput
6657 % On the other hand, perhaps the file did not have a `\input texinfo'. Then
6658 % the first `\{ in the file would cause an error. This macro tries to fix
6659 % that, assuming it is called before the first `\' could plausibly occur.
6660 % Also back turn on active characters that might appear in the input
6661 % file name, in case not using a pre-dumped format.
6663 @gdef@fixbackslash{%
6664 @ifx\@eatinput @let\ = @normalbackslash @fi
6665 @catcode`+=@active
6666 @catcode`@_=@active
6669 % Say @foo, not \foo, in error messages.
6670 @escapechar = `@@
6672 % These look ok in all fonts, so just make them not special.
6673 @catcode`@& = @other
6674 @catcode`@# = @other
6675 @catcode`@% = @other
6677 @c Set initial fonts.
6678 @textfonts
6682 @c Local variables:
6683 @c eval: (add-hook 'write-file-hooks 'time-stamp)
6684 @c page-delimiter: "^\\\\message"
6685 @c time-stamp-start: "def\\\\texinfoversion{"
6686 @c time-stamp-format: "%:y-%02m-%02d.%02H"
6687 @c time-stamp-end: "}"
6688 @c End: