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1.1 root 1: %% TeX macros to handle texinfo files
2:
3: % Copyright (C) 1985, 1986, 1988, 1990, 1991 Free Software Foundation, Inc.
4:
5: %This texinfo.tex file is free software; you can redistribute it and/or
6: %modify it under the terms of the GNU General Public License as
7: %published by the Free Software Foundation; either version 2, or (at
8: %your option) any later version.
9:
10: %This texinfo.tex file is distributed in the hope that it will be
11: %useful, but WITHOUT ANY WARRANTY; without even the implied warranty
12: %of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13: %General Public License for more details.
14:
15: %You should have received a copy of the GNU General Public License
16: %along with this texinfo.tex file; see the file COPYING. If not, write
17: %to the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139,
18: %USA.
19:
20:
21: %In other words, you are welcome to use, share and improve this program.
22: %You are forbidden to forbid anyone else to use, share and improve
23: %what you give them. Help stamp out software-hoarding!
24:
25: \def\texinfoversion{2.73}
26: \message{Loading texinfo package [Version \texinfoversion]:}
27: \message{}
28:
29: % Print the version number if in a .fmt file.
30: \everyjob{\message{[Texinfo version \texinfoversion]}\message{}}
31:
32: % Save some parts of plain tex whose names we will redefine.
33:
34: \let\ptexlbrace=\{
35: \let\ptexrbrace=\}
36: \let\ptexdots=\dots
37: \let\ptexdot=\.
38: \let\ptexstar=\*
39: \let\ptexend=\end
40: \let\ptexbullet=\bullet
41: \let\ptexb=\b
42: \let\ptexc=\c
43: \let\ptexi=\i
44: \let\ptext=\t
45: \let\ptexl=\l
46: \let\ptexL=\L
47:
48: \def\tie{\penalty 10000\ } % Save plain tex definition of ~.
49:
50: \message{Basics,}
51: \chardef\other=12
52:
53: % If this character appears in an error message or help string, it
54: % starts a new line in the output.
55: \newlinechar = `^^J
56:
57: \hyphenation{ap-pen-dix}
58: \hyphenation{mini-buf-fer mini-buf-fers}
59: \hyphenation{eshell}
60:
61: % Margin to add to right of even pages, to left of odd pages.
62: \newdimen \bindingoffset \bindingoffset=0pt
63: \newdimen \normaloffset \normaloffset=\hoffset
64: \newdimen\pagewidth \newdimen\pageheight
65: \pagewidth=\hsize \pageheight=\vsize
66:
67: % Sometimes it is convenient to have everything in the transcript file
68: % and nothing on the terminal. We don't just call \tracingall here,
69: % since that produces some useless output on the terminal.
70: %
71: \def\gloggingall{\begingroup \globaldefs = 1 \loggingall \endgroup}%
72: \def\loggingall{\tracingcommands2 \tracingstats2
73: \tracingpages1 \tracingoutput1 \tracinglostchars1
74: \tracingmacros2 \tracingparagraphs1 \tracingrestores1
75: \showboxbreadth\maxdimen\showboxdepth\maxdimen
76: }%
77:
78: %---------------------Begin change-----------------------
79: %
80: %%%% For @cropmarks command.
81: % Dimensions to add cropmarks at corners Added by P. A. MacKay, 12 Nov. 1986
82: %
83: \newdimen\cornerlong \newdimen\cornerthick
84: \newdimen \topandbottommargin
85: \newdimen \outerhsize \newdimen \outervsize
86: \cornerlong=1pc\cornerthick=.3pt % These set size of cropmarks
87: \outerhsize=7in
88: %\outervsize=9.5in
89: % Alternative @smallbook page size is 9.25in
90: \outervsize=9.25in
91: \topandbottommargin=.75in
92: %
93: %---------------------End change-----------------------
94:
95: % \onepageout takes a vbox as an argument. Note that \pagecontents
96: % does insertions itself, but you have to call it yourself.
97: \chardef\PAGE=255 \output={\onepageout{\pagecontents\PAGE}}
98: \def\onepageout#1{\hoffset=\normaloffset
99: \ifodd\pageno \advance\hoffset by \bindingoffset
100: \else \advance\hoffset by -\bindingoffset\fi
101: {\escapechar=`\\\relax % makes sure backslash is used in output files.
102: \shipout\vbox{{\let\hsize=\pagewidth \makeheadline} \pagebody{#1}%
103: {\let\hsize=\pagewidth \makefootline}}}%
104: \advancepageno \ifnum\outputpenalty>-20000 \else\dosupereject\fi}
105:
106: %%%% For @cropmarks command %%%%
107:
108: % Here is a modification of the main output routine for Near East Publications
109: % This provides right-angle cropmarks at all four corners.
110: % The contents of the page are centerlined into the cropmarks,
111: % and any desired binding offset is added as an \hskip on either
112: % site of the centerlined box. (P. A. MacKay, 12 November, 1986)
113: %
114: \def\croppageout#1{\hoffset=0pt % make sure this doesn't mess things up
115: \shipout
116: \vbox to \outervsize{\hsize=\outerhsize
117: \vbox{\line{\ewtop\hfill\ewtop}}
118: \nointerlineskip
119: \line{\vbox{\moveleft\cornerthick\nstop}
120: \hfill
121: \vbox{\moveright\cornerthick\nstop}}
122: \vskip \topandbottommargin
123: \centerline{\ifodd\pageno\hskip\bindingoffset\fi
124: \vbox{
125: {\let\hsize=\pagewidth \makeheadline}
126: \pagebody{#1}
127: {\let\hsize=\pagewidth \makefootline}}
128: \ifodd\pageno\else\hskip\bindingoffset\fi}
129: \vskip \topandbottommargin plus1fill minus1fill
130: \boxmaxdepth\cornerthick
131: \line{\vbox{\moveleft\cornerthick\nsbot}
132: \hfill
133: \vbox{\moveright\cornerthick\nsbot}}
134: \nointerlineskip
135: \vbox{\line{\ewbot\hfill\ewbot}}
136: }
137: \advancepageno
138: \ifnum\outputpenalty>-20000 \else\dosupereject\fi}
139: %
140: % Do @cropmarks to get crop marks
141: \def\cropmarks{\let\onepageout=\croppageout }
142:
143: \def\pagebody#1{\vbox to\pageheight{\boxmaxdepth=\maxdepth #1}}
144: {\catcode`\@ =11
145: \gdef\pagecontents#1{\ifvoid\topins\else\unvbox\topins\fi
146: \dimen@=\dp#1 \unvbox#1
147: \ifvoid\footins\else\vskip\skip\footins\footnoterule \unvbox\footins\fi
148: \ifr@ggedbottom \kern-\dimen@ \vfil \fi}
149: }
150:
151: %
152: % Here are the rules for the cropmarks. Note that they are
153: % offset so that the space between them is truly \outerhsize or \outervsize
154: % (P. A. MacKay, 12 November, 1986)
155: %
156: \def\ewtop{\vrule height\cornerthick depth0pt width\cornerlong}
157: \def\nstop{\vbox
158: {\hrule height\cornerthick depth\cornerlong width\cornerthick}}
159: \def\ewbot{\vrule height0pt depth\cornerthick width\cornerlong}
160: \def\nsbot{\vbox
161: {\hrule height\cornerlong depth\cornerthick width\cornerthick}}
162:
163: % Parse an argument, then pass it to #1.
164: % The argument can be delimited with [...] or with "..." or braces
165: % or it can be a whole line.
166: % #1 should be a macro which expects
167: % an ordinary undelimited TeX argument.
168:
169: \def\parsearg #1{\let\next=#1\begingroup\obeylines\futurelet\temp\parseargx}
170:
171: \def\parseargx{%
172: \ifx \obeyedspace\temp \aftergroup\parseargdiscardspace \else%
173: \aftergroup \parseargline %
174: \fi \endgroup}
175:
176: {\obeyspaces %
177: \gdef\parseargdiscardspace {\begingroup\obeylines\futurelet\temp\parseargx}}
178:
179: \gdef\obeyedspace{\ }
180:
181: \def\parseargline{\begingroup \obeylines \parsearglinex}
182: {\obeylines %
183: \gdef\parsearglinex #1^^M{\endgroup \next {#1}}}
184:
185: \def\flushcr{\ifx\par\lisppar \def\next##1{}\else \let\next=\relax \fi \next}
186:
187: %% These are used to keep @begin/@end levels from running away
188: %% Call \inENV within environments (after a \begingroup)
189: \newif\ifENV \ENVfalse \def\inENV{\ifENV\relax\else\ENVtrue\fi}
190: \def\ENVcheck{%
191: \ifENV\errmessage{Still within an environment. Type Return to continue.}
192: \endgroup\fi} % This is not perfect, but it should reduce lossage
193:
194: % @begin foo is the same as @foo, for now.
195: \newhelp\EMsimple{Type <Return> to continue}
196:
197: \outer\def\begin{\parsearg\beginxxx}
198:
199: \def\beginxxx #1{%
200: \expandafter\ifx\csname #1\endcsname\relax
201: {\errhelp=\EMsimple \errmessage{Undefined command @begin #1}}\else
202: \csname #1\endcsname\fi}
203:
204: %% @end foo executes the definition of \Efoo.
205: %% foo can be delimited by doublequotes or brackets.
206:
207: \def\end{\parsearg\endxxx}
208:
209: \def\endxxx #1{%
210: \expandafter\ifx\csname E#1\endcsname\relax
211: \expandafter\ifx\csname #1\endcsname\relax
212: \errmessage{Undefined command @end #1}\else
213: \errorE{#1}\fi\fi
214: \csname E#1\endcsname}
215: \def\errorE#1{
216: {\errhelp=\EMsimple \errmessage{@end #1 not within #1 environment}}}
217:
218: % Single-spacing is done by various environments.
219:
220: \newskip\singlespaceskip \singlespaceskip = \baselineskip
221: \def\singlespace{%
222: {\advance \baselineskip by -\singlespaceskip
223: \kern \baselineskip}%
224: \baselineskip=\singlespaceskip
225: }
226:
227: %% Simple single-character @ commands
228:
229: % @@ prints an @
230: % Kludge this until the fonts are right (grr).
231: \def\@{{\tt \char '100}}
232:
233: % Define @` and @' to be the same as ` and '
234: % but suppressing ligatures.
235: \def\`{{`}}
236: \def\'{{'}}
237:
238: % Used to generate quoted braces.
239:
240: \def\mylbrace {{\tt \char '173}}
241: \def\myrbrace {{\tt \char '175}}
242: \let\{=\mylbrace
243: \let\}=\myrbrace
244:
245: % @: forces normal size whitespace following.
246: \def\:{\spacefactor=1000 }
247:
248: % @* forces a line break.
249: \def\*{\hfil\break\hbox{}\ignorespaces}
250:
251: % @. is an end-of-sentence period.
252: \def\.{.\spacefactor=3000 }
253:
254: % @w prevents a word break. Without the \leavevmode, @w at the
255: % beginning of a paragraph, when TeX is still in vertical mode, would
256: % produce a whole line of output instead of starting the paragraph.
257: \def\w#1{\leavevmode\hbox{#1}}
258:
259: % @group ... @end group forces ... to be all on one page, by enclosing
260: % it in a TeX vbox. We use \vtop instead of \vbox to construct the box
261: % to keep its height that of a normal line. According to the rules for
262: % \topskip (p.114 of the TeXbook), the glue inserted is
263: % max (\topskip - \ht (first item), 0). If that height is large,
264: % therefore, no glue is inserted, and the space between the headline and
265: % the text is small, which looks bad.
266: %
267: \def\group{\begingroup
268: \ifnum\catcode13=\active \else
269: \errhelp = \groupinvalidhelp
270: \errmessage{@group invalid in context where filling is enabled}%
271: \fi
272: \def\Egroup{\egroup\endgroup}%
273: \vtop\bgroup
274: }
275: %
276: % TeX puts in an \escapechar (i.e., `@') at the beginning of the help
277: % message, so this ends up printing `@group can only ...'.
278: %
279: \newhelp\groupinvalidhelp{%
280: group can only be used in environments such as @example,^^J%
281: where each line of input produces a line of output.}
282:
283: % @need space-in-mils
284: % forces a page break if there is not space-in-mils remaining.
285:
286: \newdimen\mil \mil=0.001in
287:
288: \def\need{\parsearg\needx}
289:
290: % Old definition--didn't work.
291: %\def\needx #1{\par %
292: %% This method tries to make TeX break the page naturally
293: %% if the depth of the box does not fit.
294: %{\baselineskip=0pt%
295: %\vtop to #1\mil{\vfil}\kern -#1\mil\penalty 10000
296: %\prevdepth=-1000pt
297: %}}
298:
299: \def\needx#1{%
300: % Go into vertical mode, so we don't make a big box in the middle of a
301: % paragraph.
302: \par
303: %
304: % Don't add any leading before our big empty box, but allow a page
305: % break, since the best break might be right here.
306: \allowbreak
307: \nointerlineskip
308: \vtop to #1\mil{\vfil}%
309: %
310: % TeX does not even consider page breaks if a penalty added to the
311: % main vertical list is 10000 or more. But in order to see if the
312: % empty box we just added fits on the page, we must make it consider
313: % page breaks. On the other hand, we don't want to actually break the
314: % page after the empty box. So we use a penalty of 9999.
315: %
316: % There is an extremely small chance that TeX will actually break the
317: % page at this \penalty, if there are no other feasible breakpoints in
318: % sight. (If the user is using lots of big @group commands, which
319: % almost-but-not-quite fill up a page, TeX will have a hard time doing
320: % good page breaking, for example.) However, I could not construct an
321: % example where a page broke at this \penalty; if it happens in a real
322: % document, then we can reconsider our strategy.
323: \penalty9999
324: %
325: % Back up by the size of the box, whether we did a page break or not.
326: \kern -#1\mil
327: %
328: % Do not allow a page break right after this kern.
329: \nobreak
330: }
331:
332: % @br forces paragraph break
333:
334: \let\br = \par
335:
336: % @dots{} output some dots
337:
338: \def\dots{$\ldots$}
339:
340: % @page forces the start of a new page
341:
342: \def\page{\par\vfill\supereject}
343:
344: % @exdent text....
345: % outputs text on separate line in roman font, starting at standard page margin
346:
347: % This records the amount of indent in the innermost environment.
348: % That's how much \exdent should take out.
349: \newskip\exdentamount
350:
351: % This defn is used inside fill environments such as @defun.
352: \def\exdent{\parsearg\exdentyyy}
353: \def\exdentyyy #1{{\hfil\break\hbox{\kern -\exdentamount{\rm#1}}\hfil\break}}
354:
355: % This defn is used inside nofill environments such as @example.
356: \def\nofillexdent{\parsearg\nofillexdentyyy}
357: \def\nofillexdentyyy #1{{\advance \leftskip by -\exdentamount
358: \leftline{\hskip\leftskip{\rm#1}}}}
359:
360: %\hbox{{\rm#1}}\hfil\break}}
361:
362: % @include file insert text of that file as input.
363:
364: \def\include{\parsearg\includezzz}
365: \def\includezzz #1{{\def\thisfile{#1}\input #1
366: }}
367:
368: \def\thisfile{}
369:
370: % @center line outputs that line, centered
371:
372: \def\center{\parsearg\centerzzz}
373: \def\centerzzz #1{{\advance\hsize by -\leftskip
374: \advance\hsize by -\rightskip
375: \centerline{#1}}}
376:
377: % @sp n outputs n lines of vertical space
378:
379: \def\sp{\parsearg\spxxx}
380: \def\spxxx #1{\par \vskip #1\baselineskip}
381:
382: % @comment ...line which is ignored...
383: % @c is the same as @comment
384: % @ignore ... @end ignore is another way to write a comment
385:
386: \def\comment{\catcode 64=\other \catcode 123=\other \catcode 125=\other%
387: \parsearg \commentxxx}
388:
389: \def\commentxxx #1{\catcode 64=0 \catcode 123=1 \catcode 125=2 }
390:
391: \let\c=\comment
392:
393: % Prevent errors for section commands.
394: % Used in @ignore and in failing conditionals.
395: \def\ignoresections{%
396: \let\chapter=\relax
397: \let\unnumbered=\relax
398: \let\top=\relax
399: \let\unnumberedsec=\relax
400: \let\unnumberedsection=\relax
401: \let\unnumberedsubsec=\relax
402: \let\unnumberedsubsection=\relax
403: \let\unnumberedsubsubsec=\relax
404: \let\unnumberedsubsubsection=\relax
405: \let\section=\relax
406: \let\subsec=\relax
407: \let\subsubsec=\relax
408: \let\subsection=\relax
409: \let\subsubsection=\relax
410: \let\appendix=\relax
411: \let\appendixsec=\relax
412: \let\appendixsection=\relax
413: \let\appendixsubsec=\relax
414: \let\appendixsubsection=\relax
415: \let\appendixsubsubsec=\relax
416: \let\appendixsubsubsection=\relax
417: \let\contents=\relax
418: \let\smallbook=\relax
419: \let\titlepage=\relax
420: }
421:
422: \def\ignore{\begingroup\ignoresections
423: % Make sure that spaces turn into tokens that match what \ignorexxx wants.
424: \catcode32=10
425: \ignorexxx}
426: \long\def\ignorexxx #1\end ignore{\endgroup\ignorespaces}
427:
428: \def\direntry{\begingroup\direntryxxx}
429: \long\def\direntryxxx #1\end direntry{\endgroup\ignorespaces}
430:
431: % Conditionals to test whether a flag is set.
432:
433: \def\ifset{\begingroup\ignoresections\parsearg\ifsetxxx}
434:
435: \def\ifsetxxx #1{\endgroup
436: \expandafter\ifx\csname IF#1\endcsname\relax \let\temp=\ifsetfail
437: \else \let\temp=\relax \fi
438: \temp}
439: \def\Eifset{}
440: \def\ifsetfail{\begingroup\ignoresections\ifsetfailxxx}
441: \long\def\ifsetfailxxx #1\end ifset{\endgroup\ignorespaces}
442:
443: \def\ifclear{\begingroup\ignoresections\parsearg\ifclearxxx}
444:
445: \def\ifclearxxx #1{\endgroup
446: \expandafter\ifx\csname IF#1\endcsname\relax \let\temp=\relax
447: \else \let\temp=\ifclearfail \fi
448: \temp}
449: \def\Eifclear{}
450: \def\ifclearfail{\begingroup\ignoresections\ifclearfailxxx}
451: \long\def\ifclearfailxxx #1\end ifclear{\endgroup\ignorespaces}
452:
453: % @set foo to set the flag named foo.
454: % @clear foo to clear the flag named foo.
455: \def\set{\parsearg\setxxx}
456: \def\setxxx #1{
457: \expandafter\let\csname IF#1\endcsname=\set}
458:
459: \def\clear{\parsearg\clearxxx}
460: \def\clearxxx #1{
461: \expandafter\let\csname IF#1\endcsname=\relax}
462:
463: % Some texinfo constructs that are trivial in tex
464:
465: \def\iftex{}
466: \def\Eiftex{}
467: \def\ifinfo{\begingroup\ignoresections\ifinfoxxx}
468: \long\def\ifinfoxxx #1\end ifinfo{\endgroup\ignorespaces}
469:
470: \long\def\menu #1\end menu{}
471: \def\asis#1{#1}
472:
473: % @math means output in math mode.
474: % We don't use $'s directly in the definition of \math because control
475: % sequences like \math are expanded when the toc file is written. Then,
476: % we read the toc file back, the $'s will be normal characters (as they
477: % should be, according to the definition of Texinfo). So we must use a
478: % control sequence to switch into and out of math mode.
479: %
480: % This isn't quite enough for @math to work properly in indices, but it
481: % seems unlikely it will ever be needed there.
482: %
483: \let\implicitmath = $
484: \def\math#1{\implicitmath #1\implicitmath}
485:
486: \def\node{\ENVcheck\parsearg\nodezzz}
487: \def\nodezzz#1{\nodexxx [#1,]}
488: \def\nodexxx[#1,#2]{\gdef\lastnode{#1}}
489: \let\lastnode=\relax
490:
491: \def\donoderef{\ifx\lastnode\relax\else
492: \expandafter\expandafter\expandafter\setref{\lastnode}\fi
493: \let\lastnode=\relax}
494:
495: \def\unnumbnoderef{\ifx\lastnode\relax\else
496: \expandafter\expandafter\expandafter\unnumbsetref{\lastnode}\fi
497: \let\lastnode=\relax}
498:
499: \def\appendixnoderef{\ifx\lastnode\relax\else
500: \expandafter\expandafter\expandafter\appendixsetref{\lastnode}\fi
501: \let\lastnode=\relax}
502:
503: \let\refill=\relax
504:
505: % @setfilename is done at the beginning of every texinfo file.
506: % So open here the files we need to have open while reading the input.
507: % This makes it possible to make a .fmt file for texinfo.
508: \def\setfilename{%
509: \readauxfile
510: \opencontents
511: \openindices
512: \fixbackslash % Turn off hack to swallow `\input texinfo'.
513: \global\let\setfilename=\comment % Ignore extra @setfilename cmds.
514: \comment % Ignore the actual filename.
515: }
516:
517: \outer\def\bye{\pagealignmacro\tracingstats=1\ptexend}
518:
519: \def\inforef #1{\inforefzzz #1,,,,**}
520: \def\inforefzzz #1,#2,#3,#4**{See Info file \file{\losespace#3{}},
521: node \samp{\losespace#1{}}}
522: \def\losespace #1{#1}
523:
524: \message{fonts,}
525:
526: % Font-change commands.
527:
528: % Texinfo supports the sans serif font style, which plain TeX does not.
529: % So we set up a \sf analogous to plain's \rm, etc.
530: \newfam\sffam
531: \def\sf{\fam=\sffam \tensf}
532: \let\li = \sf % Sometimes we call it \li, not \sf.
533:
534: %% Try out Computer Modern fonts at \magstephalf
535: \let\mainmagstep=\magstephalf
536:
537: \ifx\bigger\relax
538: \let\mainmagstep=\magstep1
539: \font\textrm=cmr12
540: \font\texttt=cmtt12
541: \else
542: \font\textrm=cmr10 scaled \mainmagstep
543: \font\texttt=cmtt10 scaled \mainmagstep
544: \fi
545: % Instead of cmb10, you many want to use cmbx10.
546: % cmbx10 is a prettier font on its own, but cmb10
547: % looks better when embedded in a line with cmr10.
548: \font\textbf=cmb10 scaled \mainmagstep
549: \font\textit=cmti10 scaled \mainmagstep
550: \font\textsl=cmsl10 scaled \mainmagstep
551: \font\textsf=cmss10 scaled \mainmagstep
552: \font\textsc=cmcsc10 scaled \mainmagstep
553: \font\texti=cmmi10 scaled \mainmagstep
554: \font\textsy=cmsy10 scaled \mainmagstep
555:
556: % A few fonts for @defun, etc.
557: \font\defbf=cmbx10 scaled \magstep1 %was 1314
558: \font\deftt=cmtt10 scaled \magstep1
559: \def\df{\let\tentt=\deftt \let\tenbf = \defbf \bf}
560:
561: % Fonts for indices and small examples.
562: % We actually use the slanted font rather than the italic,
563: % because texinfo normally uses the slanted fonts for that.
564: % Do not make many font distinctions in general in the index, since they
565: % aren't very useful.
566: \font\ninett=cmtt9
567: \font\indrm=cmr9
568: \font\indit=cmsl9
569: \let\indsl=\indit
570: \let\indtt=\ninett
571: \let\indsf=\indrm
572: \let\indbf=\indrm
573: \let\indsc=\indrm
574: \font\indi=cmmi9
575: \font\indsy=cmsy9
576:
577: % Fonts for headings
578: \font\chaprm=cmbx12 scaled \magstep2
579: \font\chapit=cmti12 scaled \magstep2
580: \font\chapsl=cmsl12 scaled \magstep2
581: \font\chaptt=cmtt12 scaled \magstep2
582: \font\chapsf=cmss12 scaled \magstep2
583: \let\chapbf=\chaprm
584: \font\chapsc=cmcsc10 scaled\magstep3
585: \font\chapi=cmmi12 scaled \magstep2
586: \font\chapsy=cmsy10 scaled \magstep3
587:
588: \font\secrm=cmbx12 scaled \magstep1
589: \font\secit=cmti12 scaled \magstep1
590: \font\secsl=cmsl12 scaled \magstep1
591: \font\sectt=cmtt12 scaled \magstep1
592: \font\secsf=cmss12 scaled \magstep1
593: \font\secbf=cmbx12 scaled \magstep1
594: \font\secsc=cmcsc10 scaled\magstep2
595: \font\seci=cmmi12 scaled \magstep1
596: \font\secsy=cmsy10 scaled \magstep2
597:
598: % \font\ssecrm=cmbx10 scaled \magstep1 % This size an font looked bad.
599: % \font\ssecit=cmti10 scaled \magstep1 % The letters were too crowded.
600: % \font\ssecsl=cmsl10 scaled \magstep1
601: % \font\ssectt=cmtt10 scaled \magstep1
602: % \font\ssecsf=cmss10 scaled \magstep1
603:
604: %\font\ssecrm=cmb10 scaled 1315 % Note the use of cmb rather than cmbx.
605: %\font\ssecit=cmti10 scaled 1315 % Also, the size is a little larger than
606: %\font\ssecsl=cmsl10 scaled 1315 % being scaled magstep1.
607: %\font\ssectt=cmtt10 scaled 1315
608: %\font\ssecsf=cmss10 scaled 1315
609:
610: %\let\ssecbf=\ssecrm
611:
612: \font\ssecrm=cmbx12 scaled \magstephalf
613: \font\ssecit=cmti12 scaled \magstephalf
614: \font\ssecsl=cmsl12 scaled \magstephalf
615: \font\ssectt=cmtt12 scaled \magstephalf
616: \font\ssecsf=cmss12 scaled \magstephalf
617: \font\ssecbf=cmbx12 scaled \magstephalf
618: \font\ssecsc=cmcsc10 scaled \magstep1
619: \font\sseci=cmmi12 scaled \magstephalf
620: \font\ssecsy=cmsy10 scaled \magstep1
621: % The smallcaps and symbol fonts should actually be scaled \magstep1.5,
622: % but that is not a standard magnification.
623:
624: % Fonts for title page:
625: \font\titlerm = cmbx12 scaled \magstep3
626: \let\authorrm = \secrm
627:
628: % In order for the font changes to affect most math symbols and letters,
629: % we have to define the \textfont of the standard families. Since
630: % texinfo doesn't allow for producing subscripts and superscripts, we
631: % don't bother to reset \scriptfont and \scriptscriptfont (which would
632: % also require loading a lot more fonts).
633: %
634: \def\resetmathfonts{%
635: \textfont0 = \tenrm \textfont1 = \teni \textfont2 = \tensy
636: \textfont\itfam = \tenit \textfont\slfam = \tensl \textfont\bffam = \tenbf
637: \textfont\ttfam = \tentt \textfont\sffam = \tensf
638: }
639:
640:
641: % The font-changing commands redefine the meanings of \tenSTYLE, instead
642: % of just \STYLE. We do this so that font changes will continue to work
643: % in math mode, where it is the current \fam that is relevant in most
644: % cases, not the current. Plain TeX does, for example,
645: % \def\bf{\fam=\bffam \tenbf} By redefining \tenbf, we obviate the need
646: % to redefine \bf itself.
647: \def\textfonts{%
648: \let\tenrm=\textrm \let\tenit=\textit \let\tensl=\textsl
649: \let\tenbf=\textbf \let\tentt=\texttt \let\smallcaps=\textsc
650: \let\tensf=\textsf \let\teni=\texti \let\tensy=\textsy
651: \resetmathfonts}
652: \def\chapfonts{%
653: \let\tenrm=\chaprm \let\tenit=\chapit \let\tensl=\chapsl
654: \let\tenbf=\chapbf \let\tentt=\chaptt \let\smallcaps=\chapsc
655: \let\tensf=\chapsf \let\teni=\chapi \let\tensy=\chapsy
656: \resetmathfonts}
657: \def\secfonts{%
658: \let\tenrm=\secrm \let\tenit=\secit \let\tensl=\secsl
659: \let\tenbf=\secbf \let\tentt=\sectt \let\smallcaps=\secsc
660: \let\tensf=\secsf \let\teni=\seci \let\tensy=\secsy
661: \resetmathfonts}
662: \def\subsecfonts{%
663: \let\tenrm=\ssecrm \let\tenit=\ssecit \let\tensl=\ssecsl
664: \let\tenbf=\ssecbf \let\tentt=\ssectt \let\smallcaps=\ssecsc
665: \let\tensf=\ssecsf \let\teni=\sseci \let\tensy=\ssecsy
666: \resetmathfonts}
667: \def\indexfonts{%
668: \let\tenrm=\indrm \let\tenit=\indit \let\tensl=\indsl
669: \let\tenbf=\indbf \let\tentt=\indtt \let\smallcaps=\indsc
670: \let\tensf=\indsf \let\teni=\indi \let\tensy=\indsy
671: \resetmathfonts}
672:
673: % Set up the default fonts, so we can use them for creating boxes.
674: %
675: \textfonts
676:
677: % Count depth in font-changes, for error checks
678: \newcount\fontdepth \fontdepth=0
679:
680: % Fonts for short table of contents.
681: \font\shortcontrm=cmr12
682: \font\shortcontbf=cmbx12
683: \font\shortcontsl=cmsl12
684:
685: %% Add scribe-like font environments, plus @l for inline lisp (usually sans
686: %% serif) and @ii for TeX italic
687:
688: % \smartitalic{ARG} outputs arg in italics, followed by an italic correction
689: % unless the following character is such as not to need one.
690: \def\smartitalicx{\ifx\next,\else\ifx\next-\else\ifx\next.\else\/\fi\fi\fi}
691: \def\smartitalic#1{{\sl #1}\futurelet\next\smartitalicx}
692:
693: \let\i=\smartitalic
694: \let\var=\smartitalic
695: \let\dfn=\smartitalic
696: \let\emph=\smartitalic
697: \let\cite=\smartitalic
698:
699: \def\b#1{{\bf #1}}
700: \let\strong=\b
701:
702: \def\t#1{{\tt \exhyphenpenalty=10000\rawbackslash \frenchspacing #1}\null}
703: \let\ttfont = \t
704: %\def\samp #1{`{\tt \rawbackslash \frenchspacing #1}'\null}
705: \def\samp #1{`\tclose{#1}'\null}
706: \def\key #1{{\tt \exhyphenpenalty=10000\uppercase{#1}}\null}
707: \def\ctrl #1{{\tt \rawbackslash \hat}#1}
708:
709: \let\file=\samp
710:
711: % @code is a modification of @t,
712: % which makes spaces the same size as normal in the surrounding text.
713: \newdimen\tclosesave
714: \newdimen\tcloserm
715: \def\tclose#1{{\rm \tcloserm=\fontdimen2\font \tt \tclosesave=\fontdimen2\font
716: \fontdimen2\font=\tcloserm
717: % prevent breaking lines at hyphens.
718: \exhyphenpenalty=10000
719: \def\ {{\fontdimen2\font=\tclosesave{} }}%
720: \rawbackslash \frenchspacing #1\fontdimen2\font=\tclosesave}\null}
721: \let\code=\tclose
722: %\let\exp=\tclose %Was temporary
723:
724: % @kbd is like @code, except that if the argument is just one @key command,
725: % then @kbd has no effect.
726:
727: \def\xkey{\key}
728: \def\kbdfoo#1#2#3\par{\def\one{#1}\def\three{#3}\def\threex{??}%
729: \ifx\one\xkey\ifx\threex\three \key{#2}%
730: \else\tclose{\look}\fi
731: \else\tclose{\look}\fi}
732:
733: % Typeset a dimension, e.g., `in' or `pt'. The only reason for the
734: % argument is to make the input look right: @dmn{pt} instead of
735: % @dmn{}pt.
736: %
737: \def\dmn#1{\thinspace #1}
738:
739: \def\kbd#1{\def\look{#1}\expandafter\kbdfoo\look??\par}
740:
741: \def\l#1{{\li #1}\null} %
742:
743: \def\r#1{{\rm #1}} % roman font
744: % Use of \lowercase was suggested.
745: \def\sc#1{{\smallcaps#1}} % smallcaps font
746: \def\ii#1{{\it #1}} % italic font
747:
748: \message{page headings,}
749:
750: \newskip\titlepagetopglue \titlepagetopglue = 1.5in
751: \newskip\titlepagebottomglue \titlepagebottomglue = 2pc
752:
753: % First the title page. Must do @settitle before @titlepage.
754: \def\titlefont#1{{\titlerm #1}}
755:
756: \newtoks\realeverypar
757: \newif\ifseenauthor
758: \newif\iffinishedtitlepage
759:
760: \def\titlepage{\begingroup \parindent=0pt \textfonts
761: \let\subtitlerm=\tenrm
762: % I deinstalled the following change because \cmr12 is undefined.
763: % This change was not in the ChangeLog anyway. --rms.
764: % \let\subtitlerm=\cmr12
765: \def\subtitlefont{\subtitlerm \normalbaselineskip = 13pt \normalbaselines}%
766: %
767: \def\authorfont{\authorrm \normalbaselineskip = 16pt \normalbaselines}%
768: %
769: % Leave some space at the very top of the page.
770: \vglue\titlepagetopglue
771: %
772: % Now you can print the title using @title.
773: \def\title{\parsearg\titlezzz}%
774: \def\titlezzz##1{\leftline{\titlefont{##1}}
775: % print a rule at the page bottom also.
776: \finishedtitlepagefalse
777: \vskip4pt \hrule height 4pt \vskip4pt}%
778: % No rule at page bottom unless we print one at the top with @title.
779: \finishedtitlepagetrue
780: %
781: % Now you can put text using @subtitle.
782: \def\subtitle{\parsearg\subtitlezzz}%
783: \def\subtitlezzz##1{{\subtitlefont \rightline{##1}}}%
784: %
785: % @author should come last, but may come many times.
786: \def\author{\parsearg\authorzzz}%
787: \def\authorzzz##1{\ifseenauthor\else\vskip 0pt plus 1filll\seenauthortrue\fi
788: {\authorfont \leftline{##1}}}%
789: %
790: % Most title ``pages'' are actually two pages long, with space
791: % at the top of the second. We don't want the ragged left on the second.
792: \let\oldpage = \page
793: \def\page{%
794: \iffinishedtitlepage\else
795: \finishtitlepage
796: \fi
797: \oldpage
798: \let\page = \oldpage
799: \hbox{}}%
800: % \def\page{\oldpage \hbox{}}
801: }
802:
803: \def\Etitlepage{%
804: \iffinishedtitlepage\else
805: \finishtitlepage
806: \fi
807: % It is important to do the page break before ending the group,
808: % because the headline and footline are only empty inside the group.
809: % If we use the new definition of \page, we always get a blank page
810: % after the title page, which we certainly don't want.
811: \oldpage
812: \endgroup
813: \HEADINGSon
814: }
815:
816: \def\finishtitlepage{%
817: \vskip4pt \hrule height 2pt
818: \vskip\titlepagebottomglue
819: \finishedtitlepagetrue
820: }
821:
822: %%% Set up page headings and footings.
823:
824: \let\thispage=\folio
825:
826: \newtoks \evenheadline % Token sequence for heading line of even pages
827: \newtoks \oddheadline % Token sequence for heading line of odd pages
828: \newtoks \evenfootline % Token sequence for footing line of even pages
829: \newtoks \oddfootline % Token sequence for footing line of odd pages
830:
831: % Now make Tex use those variables
832: \headline={{\textfonts\rm \ifodd\pageno \the\oddheadline
833: \else \the\evenheadline \fi}}
834: \footline={{\textfonts\rm \ifodd\pageno \the\oddfootline
835: \else \the\evenfootline \fi}\HEADINGShook}
836: \let\HEADINGShook=\relax
837:
838: % Commands to set those variables.
839: % For example, this is what @headings on does
840: % @evenheading @thistitle|@thispage|@thischapter
841: % @oddheading @thischapter|@thispage|@thistitle
842: % @evenfooting @thisfile||
843: % @oddfooting ||@thisfile
844:
845: \def\evenheading{\parsearg\evenheadingxxx}
846: \def\oddheading{\parsearg\oddheadingxxx}
847: \def\everyheading{\parsearg\everyheadingxxx}
848:
849: \def\evenfooting{\parsearg\evenfootingxxx}
850: \def\oddfooting{\parsearg\oddfootingxxx}
851: \def\everyfooting{\parsearg\everyfootingxxx}
852:
853: {\catcode`\@=0 %
854:
855: \gdef\evenheadingxxx #1{\evenheadingyyy #1@|@|@|@|\finish}
856: \gdef\evenheadingyyy #1@|#2@|#3@|#4\finish{%
857: \global\evenheadline={\rlap{\centerline{#2}}\line{#1\hfil#3}}}
858:
859: \gdef\oddheadingxxx #1{\oddheadingyyy #1@|@|@|@|\finish}
860: \gdef\oddheadingyyy #1@|#2@|#3@|#4\finish{%
861: \global\oddheadline={\rlap{\centerline{#2}}\line{#1\hfil#3}}}
862:
863: \gdef\everyheadingxxx #1{\everyheadingyyy #1@|@|@|@|\finish}
864: \gdef\everyheadingyyy #1@|#2@|#3@|#4\finish{%
865: \global\evenheadline={\rlap{\centerline{#2}}\line{#1\hfil#3}}
866: \global\oddheadline={\rlap{\centerline{#2}}\line{#1\hfil#3}}}
867:
868: \gdef\evenfootingxxx #1{\evenfootingyyy #1@|@|@|@|\finish}
869: \gdef\evenfootingyyy #1@|#2@|#3@|#4\finish{%
870: \global\evenfootline={\rlap{\centerline{#2}}\line{#1\hfil#3}}}
871:
872: \gdef\oddfootingxxx #1{\oddfootingyyy #1@|@|@|@|\finish}
873: \gdef\oddfootingyyy #1@|#2@|#3@|#4\finish{%
874: \global\oddfootline={\rlap{\centerline{#2}}\line{#1\hfil#3}}}
875:
876: \gdef\everyfootingxxx #1{\everyfootingyyy #1@|@|@|@|\finish}
877: \gdef\everyfootingyyy #1@|#2@|#3@|#4\finish{%
878: \global\evenfootline={\rlap{\centerline{#2}}\line{#1\hfil#3}}
879: \global\oddfootline={\rlap{\centerline{#2}}\line{#1\hfil#3}}}
880: %
881: }% unbind the catcode of @.
882:
883: % @headings double turns headings on for double-sided printing.
884: % @headings single turns headings on for single-sided printing.
885: % @headings off turns them off.
886: % @headings on same as @headings double, retained for compatibility.
887: % @headings after turns on double-sided headings after this page.
888: % @headings doubleafter turns on double-sided headings after this page.
889: % @headings singleafter turns on single-sided headings after this page.
890: % By default, they are off.
891:
892: \def\headings #1 {\csname HEADINGS#1\endcsname}
893:
894: \def\HEADINGSoff{
895: \global\evenheadline={\hfil} \global\evenfootline={\hfil}
896: \global\oddheadline={\hfil} \global\oddfootline={\hfil}}
897: \HEADINGSoff
898: % When we turn headings on, set the page number to 1.
899: % For double-sided printing, put current file name in lower left corner,
900: % chapter name on inside top of right hand pages, document
901: % title on inside top of left hand pages, and page numbers on outside top
902: % edge of all pages.
903: \def\HEADINGSdouble{
904: %\pagealignmacro
905: \global\pageno=1
906: \global\evenfootline={\hfil}
907: \global\oddfootline={\hfil}
908: \global\evenheadline={\line{\folio\hfil\thistitle}}
909: \global\oddheadline={\line{\thischapter\hfil\folio}}
910: }
911: % For single-sided printing, chapter title goes across top left of page,
912: % page number on top right.
913: \def\HEADINGSsingle{
914: %\pagealignmacro
915: \global\pageno=1
916: \global\evenfootline={\hfil}
917: \global\oddfootline={\hfil}
918: \global\evenheadline={\line{\thischapter\hfil\folio}}
919: \global\oddheadline={\line{\thischapter\hfil\folio}}
920: }
921: \def\HEADINGSon{\HEADINGSdouble}
922:
923: \def\HEADINGSafter{\let\HEADINGShook=\HEADINGSdoublex}
924: \let\HEADINGSdoubleafter=\HEADINGSafter
925: \def\HEADINGSdoublex{%
926: \global\evenfootline={\hfil}
927: \global\oddfootline={\hfil}
928: \global\evenheadline={\line{\folio\hfil\thistitle}}
929: \global\oddheadline={\line{\thischapter\hfil\folio}}
930: }
931:
932: \def\HEADINGSsingleafter{\let\HEADINGShook=\HEADINGSsinglex}
933: \def\HEADINGSsinglex{%
934: \global\evenfootline={\hfil}
935: \global\oddfootline={\hfil}
936: \global\evenheadline={\line{\thischapter\hfil\folio}}
937: \global\oddheadline={\line{\thischapter\hfil\folio}}
938: }
939:
940: % Subroutines used in generating headings
941: % Produces Day Month Year style of output.
942: \def\today{\number\day\space
943: \ifcase\month\or
944: January\or February\or March\or April\or May\or June\or
945: July\or August\or September\or October\or November\or December\fi
946: \space\number\year}
947:
948: % Use this if you want the Month Day, Year style of output.
949: %\def\today{\ifcase\month\or
950: %January\or February\or March\or April\or May\or June\or
951: %July\or August\or September\or October\or November\or December\fi
952: %\space\number\day, \number\year}
953:
954: % @settitle line... specifies the title of the document, for headings
955: % It generates no output of its own
956:
957: \def\thistitle{No Title}
958: \def\settitle{\parsearg\settitlezzz}
959: \def\settitlezzz #1{\gdef\thistitle{#1}}
960:
961: \message{tables,}
962:
963: % @tabs -- simple alignment
964:
965: % These don't work. For one thing, \+ is defined as outer.
966: % So these macros cannot even be defined.
967:
968: %\def\tabs{\parsearg\tabszzz}
969: %\def\tabszzz #1{\settabs\+#1\cr}
970: %\def\tabline{\parsearg\tablinezzz}
971: %\def\tablinezzz #1{\+#1\cr}
972: %\def\&{&}
973:
974: % Tables -- @table, @ftable, @vtable, @item(x), @kitem(x), @xitem(x).
975:
976: % default indentation of table text
977: \newdimen\tableindent \tableindent=.8in
978: % default indentation of @itemize and @enumerate text
979: \newdimen\itemindent \itemindent=.3in
980: % margin between end of table item and start of table text.
981: \newdimen\itemmargin \itemmargin=.1in
982:
983: % used internally for \itemindent minus \itemmargin
984: \newdimen\itemmax
985:
986: % Note @table, @vtable, and @vtable define @item, @itemx, etc., with
987: % these defs.
988: % They also define \itemindex
989: % to index the item name in whatever manner is desired (perhaps none).
990:
991: \def\internalBitem{\smallbreak \parsearg\itemzzz}
992: \def\internalBitemx{\par \parsearg\itemzzz}
993:
994: \def\internalBxitem "#1"{\def\xitemsubtopix{#1} \smallbreak \parsearg\xitemzzz}
995: \def\internalBxitemx "#1"{\def\xitemsubtopix{#1} \par \parsearg\xitemzzz}
996:
997: \def\internalBkitem{\smallbreak \parsearg\kitemzzz}
998: \def\internalBkitemx{\par \parsearg\kitemzzz}
999:
1000: \def\kitemzzz #1{\dosubind {kw}{\code{#1}}{for {\bf \lastfunction}}%
1001: \itemzzz {#1}}
1002:
1003: \def\xitemzzz #1{\dosubind {kw}{\code{#1}}{for {\bf \xitemsubtopic}}%
1004: \itemzzz {#1}}
1005:
1006: \def\itemzzz #1{\begingroup %
1007: \advance\hsize by -\rightskip
1008: \advance\hsize by -\tableindent
1009: \setbox0=\hbox{\itemfont{#1}}%
1010: \itemindex{#1}%
1011: \nobreak % This prevents a break before @itemx.
1012: %
1013: % Be sure we are not still in the middle of a paragraph.
1014: \parskip=0in
1015: \par
1016: %
1017: % If the item text does not fit in the space we have, put it on a line
1018: % by itself, and do not allow a page break either before or after that
1019: % line. We do not start a paragraph here because then if the next
1020: % command is, e.g., @kindex, the whatsit would get put into the
1021: % horizontal list on a line by itself, resulting in extra blank space.
1022: \ifdim \wd0>\itemmax
1023: \setbox0=\hbox{\hskip \leftskip \hskip -\tableindent \unhbox0}\box0
1024: \nobreak
1025: \else
1026: % The item text fits into the space. Start a paragraph, so that the
1027: % following text (if any) will end up on the same line. Since that
1028: % text will be indented by \tableindent, we make the item text be in
1029: % a zero-width box.
1030: \noindent
1031: \rlap{\hskip -\tableindent\box0}%
1032: \fi
1033: \endgroup
1034: }
1035:
1036: \def\item{\errmessage{@item while not in a table}}
1037: \def\itemx{\errmessage{@itemx while not in a table}}
1038: \def\kitem{\errmessage{@kitem while not in a table}}
1039: \def\kitemx{\errmessage{@kitemx while not in a table}}
1040: \def\xitem{\errmessage{@xitem while not in a table}}
1041: \def\xitemx{\errmessage{@xitemx while not in a table}}
1042:
1043: %% Contains a kludge to get @end[description] to work
1044: \def\description{\tablez{\dontindex}{1}{}{}{}{}}
1045:
1046: \def\table{\begingroup\inENV\obeylines\obeyspaces\tablex}
1047: {\obeylines\obeyspaces%
1048: \gdef\tablex #1^^M{%
1049: \tabley\dontindex#1 \endtabley}}
1050:
1051: \def\ftable{\begingroup\inENV\obeylines\obeyspaces\ftablex}
1052: {\obeylines\obeyspaces%
1053: \gdef\ftablex #1^^M{%
1054: \tabley\fnitemindex#1 \endtabley
1055: \def\Eftable{\endgraf\endgroup\afterenvbreak}%
1056: \let\Etable=\relax}}
1057:
1058: \def\vtable{\begingroup\inENV\obeylines\obeyspaces\vtablex}
1059: {\obeylines\obeyspaces%
1060: \gdef\vtablex #1^^M{%
1061: \tabley\vritemindex#1 \endtabley
1062: \def\Evtable{\endgraf\endgroup\afterenvbreak}%
1063: \let\Etable=\relax}}
1064:
1065: \def\dontindex #1{}
1066: \def\fnitemindex #1{\doind {fn}{\code{#1}}}%
1067: \def\vritemindex #1{\doind {vr}{\code{#1}}}%
1068:
1069: {\obeyspaces %
1070: \gdef\tabley#1#2 #3 #4 #5 #6 #7\endtabley{\endgroup%
1071: \tablez{#1}{#2}{#3}{#4}{#5}{#6}}}
1072:
1073: \def\tablez #1#2#3#4#5#6{%
1074: \aboveenvbreak %
1075: \begingroup %
1076: \def\Edescription{\Etable}% Neccessary kludge.
1077: \let\itemindex=#1%
1078: \ifnum 0#3>0 \advance \leftskip by #3\mil \fi %
1079: \ifnum 0#4>0 \tableindent=#4\mil \fi %
1080: \ifnum 0#5>0 \advance \rightskip by #5\mil \fi %
1081: \def\itemfont{#2}%
1082: \itemmax=\tableindent %
1083: \advance \itemmax by -\itemmargin %
1084: \advance \leftskip by \tableindent %
1085: \exdentamount=\tableindent
1086: \parindent = 0pt
1087: \parskip = \smallskipamount
1088: \ifdim \parskip=0pt \parskip=2pt \fi%
1089: \def\Etable{\endgraf\endgroup\afterenvbreak}%
1090: \let\item = \internalBitem %
1091: \let\itemx = \internalBitemx %
1092: \let\kitem = \internalBkitem %
1093: \let\kitemx = \internalBkitemx %
1094: \let\xitem = \internalBxitem %
1095: \let\xitemx = \internalBxitemx %
1096: }
1097:
1098: % This is the counter used by @enumerate, which is really @itemize
1099:
1100: \newcount \itemno
1101:
1102: \def\itemize{\parsearg\itemizezzz}
1103:
1104: \def\itemizezzz #1{%
1105: \begingroup % ended by the @end itemsize
1106: \itemizey {#1}{\Eitemize}
1107: }
1108:
1109: \def\itemizey #1#2{%
1110: \aboveenvbreak %
1111: \itemmax=\itemindent %
1112: \advance \itemmax by -\itemmargin %
1113: \advance \leftskip by \itemindent %
1114: \exdentamount=\itemindent
1115: \parindent = 0pt %
1116: \parskip = \smallskipamount %
1117: \ifdim \parskip=0pt \parskip=2pt \fi%
1118: \def#2{\endgraf\endgroup\afterenvbreak}%
1119: \def\itemcontents{#1}%
1120: \let\item=\itemizeitem}
1121:
1122: \def\bullet{$\ptexbullet$}
1123: \def\minus{$-$}
1124:
1125: % Set sfcode to normal for the chars that usually have another value.
1126: % These are `.?!:;,'
1127: \def\frenchspacing{\sfcode46=1000 \sfcode63=1000 \sfcode33=1000
1128: \sfcode58=1000 \sfcode59=1000 \sfcode44=1000 }
1129:
1130: % \splitoff TOKENS\endmark defines \first to be the first token in
1131: % TOKENS, and \rest to be the remainder.
1132: %
1133: \def\splitoff#1#2\endmark{\def\first{#1}\def\rest{#2}}%
1134:
1135: % Allow an optional argument of an uppercase letter, lowercase letter,
1136: % or number, to specify the first label in the enumerated list. No
1137: % argument is the same as `1'.
1138: %
1139: \def\enumerate{\parsearg\enumeratezzz}
1140: \def\enumeratezzz #1{\enumeratey #1 \endenumeratey}
1141: \def\enumeratey #1 #2\endenumeratey{%
1142: \begingroup % ended by the @end enumerate
1143: %
1144: % If we were given no argument, pretend we were given `1'.
1145: \def\thearg{#1}%
1146: \ifx\thearg\empty \def\thearg{1}\fi
1147: %
1148: % Detect if the argument is a single token. If so, it might be a
1149: % letter. Otherwise, the only valid thing it can be is a number.
1150: % (We will always have one token, because of the test we just made.
1151: % This is a good thing, since \splitoff doesn't work given nothing at
1152: % all -- the first parameter is undelimited.)
1153: \expandafter\splitoff\thearg\endmark
1154: \ifx\rest\empty
1155: % Only one token in the argument. It could still be anything.
1156: % A ``lowercase letter'' is one whose \lccode is nonzero.
1157: % An ``uppercase letter'' is one whose \lccode is both nonzero, and
1158: % not equal to itself.
1159: % Otherwise, we assume it's a number.
1160: %
1161: % We need the \relax at the end of the \ifnum lines to stop TeX from
1162: % continuing to look for a <number>.
1163: %
1164: \ifnum\lccode\expandafter`\thearg=0\relax
1165: \numericenumerate % a number (we hope)
1166: \else
1167: % It's a letter.
1168: \ifnum\lccode\expandafter`\thearg=\expandafter`\thearg\relax
1169: \lowercaseenumerate % lowercase letter
1170: \else
1171: \uppercaseenumerate % uppercase letter
1172: \fi
1173: \fi
1174: \else
1175: % Multiple tokens in the argument. We hope it's a number.
1176: \numericenumerate
1177: \fi
1178: }
1179:
1180: % An @enumerate whose labels are integers. The starting integer is
1181: % given in \thearg.
1182: %
1183: \def\numericenumerate{%
1184: \itemno = \thearg
1185: \startenumeration{\the\itemno}%
1186: }
1187:
1188: % The starting (lowercase) letter is in \thearg.
1189: \def\lowercaseenumerate{%
1190: \itemno = \expandafter`\thearg
1191: \startenumeration{%
1192: % Be sure we're not beyond the end of the alphabet.
1193: \ifnum\itemno=0
1194: \errmessage{No more lowercase letters in @enumerate; get a bigger
1195: alphabet}%
1196: \fi
1197: \char\lccode\itemno
1198: }%
1199: }
1200:
1201: % The starting (uppercase) letter is in \thearg.
1202: \def\uppercaseenumerate{%
1203: \itemno = \expandafter`\thearg
1204: \startenumeration{%
1205: % Be sure we're not beyond the end of the alphabet.
1206: \ifnum\itemno=0
1207: \errmessage{No more uppercase letters in @enumerate; get a bigger
1208: alphabet}
1209: \fi
1210: \char\uccode\itemno
1211: }%
1212: }
1213:
1214: % Call itemizey, adding a period to the first argument and supplying the
1215: % common last two arguments. Also subtract one from the initial value in
1216: % \itemno, since @item increments \itemno.
1217: %
1218: \def\startenumeration#1{%
1219: \advance\itemno by -1
1220: \itemizey{#1.}\Eenumerate\flushcr
1221: }
1222:
1223: % @alphaenumerate and @capsenumerate are abbreviations for giving an arg
1224: % to @enumerate.
1225: %
1226: \def\alphaenumerate{\enumerate{a}}
1227: \def\capsenumerate{\enumerate{A}}
1228: \def\Ealphaenumerate{\Eenumerate}
1229: \def\Ecapsenumerate{\Eenumerate}
1230:
1231: % Definition of @item while inside @itemize.
1232:
1233: \def\itemizeitem{%
1234: \advance\itemno by 1
1235: {\let\par=\endgraf \smallbreak}%
1236: \ifhmode \errmessage{\in hmode at itemizeitem}\fi
1237: {\parskip=0in \hskip 0pt
1238: \hbox to 0pt{\hss \itemcontents\hskip \itemmargin}%
1239: \vadjust{\penalty 1200}}%
1240: \flushcr}
1241:
1242: \message{indexing,}
1243: % Index generation facilities
1244:
1245: % Define \newwrite to be identical to plain tex's \newwrite
1246: % except not \outer, so it can be used within \newindex.
1247: {\catcode`\@=11
1248: \gdef\newwrite{\alloc@7\write\chardef\sixt@@n}}
1249:
1250: % \newindex {foo} defines an index named foo.
1251: % It automatically defines \fooindex such that
1252: % \fooindex ...rest of line... puts an entry in the index foo.
1253: % It also defines \fooindfile to be the number of the output channel for
1254: % the file that accumulates this index. The file's extension is foo.
1255: % The name of an index should be no more than 2 characters long
1256: % for the sake of vms.
1257:
1258: \def\newindex #1{
1259: \expandafter\newwrite \csname#1indfile\endcsname% Define number for output file
1260: \openout \csname#1indfile\endcsname \jobname.#1 % Open the file
1261: \expandafter\xdef\csname#1index\endcsname{% % Define \xxxindex
1262: \noexpand\doindex {#1}}
1263: }
1264:
1265: % @defindex foo == \newindex{foo}
1266:
1267: \def\defindex{\parsearg\newindex}
1268:
1269: % Define @defcodeindex, like @defindex except put all entries in @code.
1270:
1271: \def\newcodeindex #1{
1272: \expandafter\newwrite \csname#1indfile\endcsname% Define number for output file
1273: \openout \csname#1indfile\endcsname \jobname.#1 % Open the file
1274: \expandafter\xdef\csname#1index\endcsname{% % Define \xxxindex
1275: \noexpand\docodeindex {#1}}
1276: }
1277:
1278: \def\defcodeindex{\parsearg\newcodeindex}
1279:
1280: % @synindex foo bar makes index foo feed into index bar.
1281: % Do this instead of @defindex foo if you don't want it as a separate index.
1282: \def\synindex #1 #2 {%
1283: \expandafter\let\expandafter\synindexfoo\expandafter=\csname#2indfile\endcsname
1284: \expandafter\let\csname#1indfile\endcsname=\synindexfoo
1285: \expandafter\xdef\csname#1index\endcsname{% % Define \xxxindex
1286: \noexpand\doindex {#2}}%
1287: }
1288:
1289: % @syncodeindex foo bar similar, but put all entries made for index foo
1290: % inside @code.
1291: \def\syncodeindex #1 #2 {%
1292: \expandafter\let\expandafter\synindexfoo\expandafter=\csname#2indfile\endcsname
1293: \expandafter\let\csname#1indfile\endcsname=\synindexfoo
1294: \expandafter\xdef\csname#1index\endcsname{% % Define \xxxindex
1295: \noexpand\docodeindex {#2}}%
1296: }
1297:
1298: % Define \doindex, the driver for all \fooindex macros.
1299: % Argument #1 is generated by the calling \fooindex macro,
1300: % and it is "foo", the name of the index.
1301:
1302: % \doindex just uses \parsearg; it calls \doind for the actual work.
1303: % This is because \doind is more useful to call from other macros.
1304:
1305: % There is also \dosubind {index}{topic}{subtopic}
1306: % which makes an entry in a two-level index such as the operation index.
1307:
1308: \def\doindex#1{\edef\indexname{#1}\parsearg\singleindexer}
1309: \def\singleindexer #1{\doind{\indexname}{#1}}
1310:
1311: % like the previous two, but they put @code around the argument.
1312: \def\docodeindex#1{\edef\indexname{#1}\parsearg\singlecodeindexer}
1313: \def\singlecodeindexer #1{\doind{\indexname}{\code{#1}}}
1314:
1315: \def\indexdummies{%
1316: \def\_{{\realbackslash _}}%
1317: \def\w{\realbackslash w }%
1318: \def\bf{\realbackslash bf }%
1319: \def\rm{\realbackslash rm }%
1320: \def\sl{\realbackslash sl }%
1321: \def\sf{\realbackslash sf}%
1322: \def\tt{\realbackslash tt}%
1323: \def\gtr{\realbackslash gtr}%
1324: \def\less{\realbackslash less}%
1325: \def\hat{\realbackslash hat}%
1326: \def\char{\realbackslash char}%
1327: \def\TeX{\realbackslash TeX}%
1328: \def\dots{\realbackslash dots }%
1329: \def\copyright{\realbackslash copyright }%
1330: \def\tclose##1{\realbackslash tclose {##1}}%
1331: \def\code##1{\realbackslash code {##1}}%
1332: \def\samp##1{\realbackslash samp {##1}}%
1333: \def\t##1{\realbackslash r {##1}}%
1334: \def\r##1{\realbackslash r {##1}}%
1335: \def\i##1{\realbackslash i {##1}}%
1336: \def\b##1{\realbackslash b {##1}}%
1337: \def\cite##1{\realbackslash cite {##1}}%
1338: \def\key##1{\realbackslash key {##1}}%
1339: \def\file##1{\realbackslash file {##1}}%
1340: \def\var##1{\realbackslash var {##1}}%
1341: \def\kbd##1{\realbackslash kbd {##1}}%
1342: }
1343:
1344: % \indexnofonts no-ops all font-change commands.
1345: % This is used when outputting the strings to sort the index by.
1346: \def\indexdummyfont#1{#1}
1347: \def\indexdummytex{TeX}
1348: \def\indexdummydots{...}
1349:
1350: \def\indexnofonts{%
1351: \let\w=\indexdummyfont
1352: \let\t=\indexdummyfont
1353: \let\r=\indexdummyfont
1354: \let\i=\indexdummyfont
1355: \let\b=\indexdummyfont
1356: \let\emph=\indexdummyfont
1357: \let\strong=\indexdummyfont
1358: \let\cite=\indexdummyfont
1359: \let\sc=\indexdummyfont
1360: %Don't no-op \tt, since it isn't a user-level command
1361: % and is used in the definitions of the active chars like <, >, |...
1362: %\let\tt=\indexdummyfont
1363: \let\tclose=\indexdummyfont
1364: \let\code=\indexdummyfont
1365: \let\file=\indexdummyfont
1366: \let\samp=\indexdummyfont
1367: \let\kbd=\indexdummyfont
1368: \let\key=\indexdummyfont
1369: \let\var=\indexdummyfont
1370: \let\TeX=\indexdummytex
1371: \let\dots=\indexdummydots
1372: }
1373:
1374: % To define \realbackslash, we must make \ not be an escape.
1375: % We must first make another character (@) an escape
1376: % so we do not become unable to do a definition.
1377:
1378: {\catcode`\@=0 \catcode`\\=\other
1379: @gdef@realbackslash{\}}
1380:
1381: \let\indexbackslash=0 %overridden during \printindex.
1382:
1383: \def\doind #1#2{%
1384: {\count10=\lastpenalty %
1385: {\indexdummies % Must do this here, since \bf, etc expand at this stage
1386: \escapechar=`\\%
1387: {\let\folio=0% Expand all macros now EXCEPT \folio
1388: \def\rawbackslashxx{\indexbackslash}% \indexbackslash isn't defined now
1389: % so it will be output as is; and it will print as backslash in the indx.
1390: %
1391: % Now process the index-string once, with all font commands turned off,
1392: % to get the string to sort the index by.
1393: {\indexnofonts
1394: \xdef\temp1{#2}%
1395: }%
1396: % Now produce the complete index entry. We process the index-string again,
1397: % this time with font commands expanded, to get what to print in the index.
1398: \edef\temp{%
1399: \write \csname#1indfile\endcsname{%
1400: \realbackslash entry {\temp1}{\folio}{#2}}}%
1401: \temp }%
1402: }\penalty\count10}}
1403:
1404: \def\dosubind #1#2#3{%
1405: {\count10=\lastpenalty %
1406: {\indexdummies % Must do this here, since \bf, etc expand at this stage
1407: \escapechar=`\\%
1408: {\let\folio=0%
1409: \def\rawbackslashxx{\indexbackslash}%
1410: %
1411: % Now process the index-string once, with all font commands turned off,
1412: % to get the string to sort the index by.
1413: {\indexnofonts
1414: \xdef\temp1{#2 #3}%
1415: }%
1416: % Now produce the complete index entry. We process the index-string again,
1417: % this time with font commands expanded, to get what to print in the index.
1418: \edef\temp{%
1419: \write \csname#1indfile\endcsname{%
1420: \realbackslash entry {\temp1}{\folio}{#2}{#3}}}%
1421: \temp }%
1422: }\penalty\count10}}
1423:
1424: % The index entry written in the file actually looks like
1425: % \entry {sortstring}{page}{topic}
1426: % or
1427: % \entry {sortstring}{page}{topic}{subtopic}
1428: % The texindex program reads in these files and writes files
1429: % containing these kinds of lines:
1430: % \initial {c}
1431: % before the first topic whose initial is c
1432: % \entry {topic}{pagelist}
1433: % for a topic that is used without subtopics
1434: % \primary {topic}
1435: % for the beginning of a topic that is used with subtopics
1436: % \secondary {subtopic}{pagelist}
1437: % for each subtopic.
1438:
1439: % Define the user-accessible indexing commands
1440: % @findex, @vindex, @kindex, @cindex.
1441:
1442: \def\findex {\fnindex}
1443: \def\kindex {\kyindex}
1444: \def\cindex {\cpindex}
1445: \def\vindex {\vrindex}
1446: \def\tindex {\tpindex}
1447: \def\pindex {\pgindex}
1448:
1449: \def\cindexsub {\begingroup\obeylines\cindexsub}
1450: {\obeylines %
1451: \gdef\cindexsub "#1" #2^^M{\endgroup %
1452: \dosubind{cp}{#2}{#1}}}
1453:
1454: % Define the macros used in formatting output of the sorted index material.
1455:
1456: % This is what you call to cause a particular index to get printed.
1457: % Write
1458: % @unnumbered Function Index
1459: % @printindex fn
1460:
1461: \def\printindex{\parsearg\doprintindex}
1462:
1463: \def\doprintindex#1{%
1464: \tex
1465: \dobreak \chapheadingskip {10000}
1466: \catcode`\%=\other\catcode`\&=\other\catcode`\#=\other
1467: \catcode`\$=\other\catcode`\_=\other
1468: \catcode`\~=\other
1469: %
1470: % The following don't help, since the chars were translated
1471: % when the raw index was written, and their fonts were discarded
1472: % due to \indexnofonts.
1473: %\catcode`\"=\active
1474: %\catcode`\^=\active
1475: %\catcode`\_=\active
1476: %\catcode`\|=\active
1477: %\catcode`\<=\active
1478: %\catcode`\>=\active
1479: % %
1480: \def\indexbackslash{\rawbackslashxx}
1481: \indexfonts\rm \tolerance=9500 \advance\baselineskip -1pt
1482: \begindoublecolumns
1483: %
1484: % See if the index file exists and is nonempty.
1485: \openin 1 \jobname.#1s
1486: \ifeof 1
1487: % \enddoublecolumns gets confused if there is no text in the index,
1488: % and it loses the chapter title and the aux file entries for the
1489: % index. The easiest way to prevent this problem is to make sure
1490: % there is some text.
1491: (Index is nonexistent)
1492: \else
1493: %
1494: % If the index file exists but is empty, then \openin leaves \ifeof
1495: % false. We have to make TeX try to read something from the file, so
1496: % it can discover if there is anything in it.
1497: \read 1 to \temp
1498: \ifeof 1
1499: (Index is empty)
1500: \else
1501: \input \jobname.#1s
1502: \fi
1503: \fi
1504: \closein 1
1505: \enddoublecolumns
1506: \Etex
1507: }
1508:
1509: % These macros are used by the sorted index file itself.
1510: % Change them to control the appearance of the index.
1511:
1512: % Same as \bigskipamount except no shrink.
1513: % \balancecolumns gets confused if there is any shrink.
1514: \newskip\initialskipamount \initialskipamount 12pt plus4pt
1515:
1516: \def\initial #1{%
1517: {\let\tentt=\sectt \let\tt=\sectt \let\sf=\sectt
1518: \ifdim\lastskip<\initialskipamount
1519: \removelastskip \penalty-200 \vskip \initialskipamount\fi
1520: \line{\secbf#1\hfill}\kern 2pt\penalty10000}}
1521:
1522: \def\entry #1#2{\begingroup
1523: \parfillskip=0in \parskip=0in \parindent=0in
1524: %
1525: % \hangindent is only relevant when the page number and the entry text
1526: % don't fit on one line. In that case, bob suggests starting the dots
1527: % pretty far over on the line.
1528: % \hangafter is reset to 1 at the start of each paragraph.
1529: \hangindent=.75\hsize
1530: \noindent
1531: %
1532: % Don't break the text of the index entry.
1533: \hbox{#1}%
1534: %
1535: % If we must, put the page number on a line of its own, and fill out
1536: % this line with blank space. (The \hfil is overwhelmed with the
1537: % fill leaders glue in \indexdotfill if the page number does fit.)
1538: \hfil\penalty50
1539: \null\nobreak\indexdotfill % Have leaders before the page number.
1540: %
1541: % The `\ ' here is removed by the implicit \unskip that TeX does as
1542: % part of (the primitive) \par. Without, a spurious underfull \hbox ensues.
1543: \ #2% The page number ends the paragraph.
1544: \par
1545: \endgroup}
1546:
1547: % Like \dotfill except takes at least 1 em.
1548: \def\indexdotfill{\cleaders
1549: \hbox{$\mathsurround=0pt \mkern1.5mu . \mkern1.5mu$}\hskip 1em plus 1fill}
1550:
1551: \def\primary #1{\line{#1\hfil}}
1552:
1553: \newskip\secondaryindent \secondaryindent=0.5cm
1554:
1555: \def\secondary #1#2{
1556: {\parfillskip=0in \parskip=0in
1557: \hangindent =1in \hangafter=1
1558: \noindent\hskip\secondaryindent\hbox{#1}\indexdotfill #2\par
1559: }}
1560:
1561: %% Define two-column mode, which is used in indexes.
1562: %% Adapted from the TeXBook, page 416
1563: \catcode `\@=11
1564:
1565: \newbox\partialpage
1566:
1567: \newdimen\doublecolumnhsize \doublecolumnhsize = 3.11in
1568: \newdimen\doublecolumnvsize \doublecolumnvsize = 19.1in
1569: \newdimen\availdimen@
1570:
1571: \def\begindoublecolumns{\begingroup
1572: \output={\global\setbox\partialpage=
1573: \vbox{\unvbox255\kern -\topskip \kern \baselineskip}}\eject
1574: \output={\doublecolumnout}%
1575: \hsize=\doublecolumnhsize \vsize=\doublecolumnvsize}
1576: \def\enddoublecolumns{\output={\balancecolumns}\eject
1577: \endgroup \pagegoal=\vsize}
1578:
1579: \def\doublecolumnout{\splittopskip=\topskip \splitmaxdepth=\maxdepth
1580: \dimen@=\pageheight \advance\dimen@ by-\ht\partialpage
1581: \setbox0=\vsplit255 to\dimen@ \setbox2=\vsplit255 to\dimen@
1582: \onepageout\pagesofar \unvbox255 \penalty\outputpenalty}
1583: \def\pagesofar{\unvbox\partialpage %
1584: \hsize=\doublecolumnhsize % have to restore this since output routine
1585: % changes it to set cropmarks (P. A. MacKay, 12 Nov. 1986)
1586: \wd0=\hsize \wd2=\hsize \hbox to\pagewidth{\box0\hfil\box2}}
1587: \def\balancecolumns{%
1588: % Unset the glue.
1589: \setbox255=\vbox{\unvbox255}
1590: \dimen@=\ht255
1591: \advance\dimen@ by\topskip \advance\dimen@ by-\baselineskip
1592: \divide\dimen@ by2
1593: \availdimen@=\pageheight \advance\availdimen@ by-\ht\partialpage
1594: % If the remaining data is too big for one page,
1595: % output one page normally, then work with what remains.
1596: \ifdim \dimen@>\availdimen@
1597: {
1598: \splittopskip=\topskip \splitmaxdepth=\maxdepth
1599: \dimen@=\pageheight \advance\dimen@ by-\ht\partialpage
1600: \setbox0=\vsplit255 to\dimen@ \setbox2=\vsplit255 to\dimen@
1601: \onepageout\pagesofar
1602: }
1603: % Recompute size of what remains, in case we just output some of it.
1604: \dimen@=\ht255
1605: \advance\dimen@ by\topskip \advance\dimen@ by-\baselineskip
1606: \divide\dimen@ by2
1607: \fi
1608: \setbox0=\vbox{\unvbox255}
1609: \splittopskip=\topskip
1610: {\vbadness=10000 \loop \global\setbox3=\copy0
1611: \global\setbox1=\vsplit3 to\dimen@
1612: \ifdim\ht3>\dimen@ \global\advance\dimen@ by1pt \repeat}
1613: \setbox0=\vbox to\dimen@{\unvbox1} \setbox2=\vbox to\dimen@{\unvbox3}
1614: \pagesofar}
1615:
1616: \catcode `\@=\other
1617: \message{sectioning,}
1618: % Define chapters, sections, etc.
1619:
1620: \newcount \chapno
1621: \newcount \secno \secno=0
1622: \newcount \subsecno \subsecno=0
1623: \newcount \subsubsecno \subsubsecno=0
1624:
1625: % This counter is funny since it counts through charcodes of letters A, B, ...
1626: \newcount \appendixno \appendixno = `\@
1627: \def\appendixletter{\char\the\appendixno}
1628:
1629: \newwrite \contentsfile
1630: % This is called from \setfilename.
1631: \def\opencontents{\openout \contentsfile = \jobname.toc}
1632:
1633: % Each @chapter defines this as the name of the chapter.
1634: % page headings and footings can use it. @section does likewise
1635:
1636: \def\thischapter{} \def\thissection{}
1637: \def\seccheck#1{\if \pageno<0 %
1638: \errmessage{@#1 not allowed after generating table of contents}\fi
1639: %
1640: }
1641:
1642: \def\chapternofonts{%
1643: \let\rawbackslash=\relax%
1644: \let\frenchspacing=\relax%
1645: \def\result{\realbackslash result}
1646: \def\equiv{\realbackslash equiv}
1647: \def\expansion{\realbackslash expansion}
1648: \def\print{\realbackslash print}
1649: \def\TeX{\realbackslash TeX}
1650: \def\dots{\realbackslash dots}
1651: \def\copyright{\realbackslash copyright}
1652: \def\tt{\realbackslash tt}
1653: \def\bf{\realbackslash bf }
1654: \def\w{\realbackslash w}
1655: \def\less{\realbackslash less}
1656: \def\gtr{\realbackslash gtr}
1657: \def\hat{\realbackslash hat}
1658: \def\char{\realbackslash char}
1659: \def\tclose##1{\realbackslash tclose {##1}}
1660: \def\code##1{\realbackslash code {##1}}
1661: \def\samp##1{\realbackslash samp {##1}}
1662: \def\r##1{\realbackslash r {##1}}
1663: \def\b##1{\realbackslash b {##1}}
1664: \def\key##1{\realbackslash key {##1}}
1665: \def\file##1{\realbackslash file {##1}}
1666: \def\kbd##1{\realbackslash kbd {##1}}
1667: % These are redefined because @smartitalic wouldn't work inside xdef.
1668: \def\i##1{\realbackslash i {##1}}
1669: \def\cite##1{\realbackslash cite {##1}}
1670: \def\var##1{\realbackslash var {##1}}
1671: \def\emph##1{\realbackslash emph {##1}}
1672: \def\dfn##1{\realbackslash dfn {##1}}
1673: }
1674:
1675: \def\thischaptername{No Chapter Title}
1676: \outer\def\chapter{\parsearg\chapterzzz}
1677: \def\chapterzzz #1{\seccheck{chapter}%
1678: \secno=0 \subsecno=0 \subsubsecno=0
1679: \global\advance \chapno by 1 \message{Chapter \the\chapno}%
1680: \chapmacro {#1}{\the\chapno}%
1681: \gdef\thissection{#1}%
1682: \gdef\thischaptername{#1}%
1683: % We don't substitute the actual chapter name into \thischapter
1684: % because we don't want its macros evaluated now.
1685: \xdef\thischapter{Chapter \the\chapno: \noexpand\thischaptername}%
1686: {\chapternofonts%
1687: \edef\temp{{\realbackslash chapentry {#1}{\the\chapno}{\noexpand\folio}}}%
1688: \escapechar=`\\%
1689: \write \contentsfile \temp %
1690: \donoderef %
1691: \global\let\section = \numberedsec
1692: \global\let\subsection = \numberedsubsec
1693: \global\let\subsubsection = \numberedsubsubsec
1694: }}
1695:
1696: \outer\def\appendix{\parsearg\appendixzzz}
1697: \def\appendixzzz #1{\seccheck{appendix}%
1698: \secno=0 \subsecno=0 \subsubsecno=0
1699: \global\advance \appendixno by 1 \message{Appendix \appendixletter}%
1700: \chapmacro {#1}{Appendix \appendixletter}%
1701: \gdef\thissection{#1}%
1702: \gdef\thischaptername{#1}%
1703: \xdef\thischapter{Appendix \appendixletter: \noexpand\thischaptername}%
1704: {\chapternofonts%
1705: \edef\temp{{\realbackslash chapentry
1706: {#1}{Appendix \appendixletter}{\noexpand\folio}}}%
1707: \escapechar=`\\%
1708: \write \contentsfile \temp %
1709: \appendixnoderef %
1710: \global\let\section = \appendixsec
1711: \global\let\subsection = \appendixsubsec
1712: \global\let\subsubsection = \appendixsubsubsec
1713: }}
1714:
1715: \outer\def\top{\parsearg\unnumberedzzz}
1716: \outer\def\unnumbered{\parsearg\unnumberedzzz}
1717: \def\unnumberedzzz #1{\seccheck{unnumbered}%
1718: \secno=0 \subsecno=0 \subsubsecno=0 \message{(#1)}
1719: \unnumbchapmacro {#1}%
1720: \gdef\thischapter{#1}\gdef\thissection{#1}%
1721: {\chapternofonts%
1722: \edef\temp{{\realbackslash unnumbchapentry {#1}{\noexpand\folio}}}%
1723: \escapechar=`\\%
1724: \write \contentsfile \temp %
1725: \unnumbnoderef %
1726: \global\let\section = \unnumberedsec
1727: \global\let\subsection = \unnumberedsubsec
1728: \global\let\subsubsection = \unnumberedsubsubsec
1729: }}
1730:
1731: \outer\def\numberedsec{\parsearg\seczzz}
1732: \def\seczzz #1{\seccheck{section}%
1733: \subsecno=0 \subsubsecno=0 \global\advance \secno by 1 %
1734: \gdef\thissection{#1}\secheading {#1}{\the\chapno}{\the\secno}%
1735: {\chapternofonts%
1736: \edef\temp{{\realbackslash secentry %
1737: {#1}{\the\chapno}{\the\secno}{\noexpand\folio}}}%
1738: \escapechar=`\\%
1739: \write \contentsfile \temp %
1740: \donoderef %
1741: \penalty 10000 %
1742: }}
1743:
1744: \outer\def\appendixsection{\parsearg\appendixsectionzzz}
1745: \outer\def\appendixsec{\parsearg\appendixsectionzzz}
1746: \def\appendixsectionzzz #1{\seccheck{appendixsection}%
1747: \subsecno=0 \subsubsecno=0 \global\advance \secno by 1 %
1748: \gdef\thissection{#1}\secheading {#1}{\appendixletter}{\the\secno}%
1749: {\chapternofonts%
1750: \edef\temp{{\realbackslash secentry %
1751: {#1}{\appendixletter}{\the\secno}{\noexpand\folio}}}%
1752: \escapechar=`\\%
1753: \write \contentsfile \temp %
1754: \appendixnoderef %
1755: \penalty 10000 %
1756: }}
1757:
1758: \outer\def\unnumberedsec{\parsearg\unnumberedseczzz}
1759: \def\unnumberedseczzz #1{\seccheck{unnumberedsec}%
1760: \plainsecheading {#1}\gdef\thissection{#1}%
1761: {\chapternofonts%
1762: \edef\temp{{\realbackslash unnumbsecentry{#1}{\noexpand\folio}}}%
1763: \escapechar=`\\%
1764: \write \contentsfile \temp %
1765: \unnumbnoderef %
1766: \penalty 10000 %
1767: }}
1768:
1769: \outer\def\numberedsubsec{\parsearg\numberedsubseczzz}
1770: \def\numberedsubseczzz #1{\seccheck{subsection}%
1771: \gdef\thissection{#1}\subsubsecno=0 \global\advance \subsecno by 1 %
1772: \subsecheading {#1}{\the\chapno}{\the\secno}{\the\subsecno}%
1773: {\chapternofonts%
1774: \edef\temp{{\realbackslash subsecentry %
1775: {#1}{\the\chapno}{\the\secno}{\the\subsecno}{\noexpand\folio}}}%
1776: \escapechar=`\\%
1777: \write \contentsfile \temp %
1778: \donoderef %
1779: \penalty 10000 %
1780: }}
1781:
1782: \outer\def\appendixsubsec{\parsearg\appendixsubseczzz}
1783: \def\appendixsubseczzz #1{\seccheck{appendixsubsec}%
1784: \gdef\thissection{#1}\subsubsecno=0 \global\advance \subsecno by 1 %
1785: \subsecheading {#1}{\appendixletter}{\the\secno}{\the\subsecno}%
1786: {\chapternofonts%
1787: \edef\temp{{\realbackslash subsecentry %
1788: {#1}{\appendixletter}{\the\secno}{\the\subsecno}{\noexpand\folio}}}%
1789: \escapechar=`\\%
1790: \write \contentsfile \temp %
1791: \appendixnoderef %
1792: \penalty 10000 %
1793: }}
1794:
1795: \outer\def\unnumberedsubsec{\parsearg\unnumberedsubseczzz}
1796: \def\unnumberedsubseczzz #1{\seccheck{unnumberedsubsec}%
1797: \plainsecheading {#1}\gdef\thissection{#1}%
1798: {\chapternofonts%
1799: \edef\temp{{\realbackslash unnumbsubsecentry{#1}{\noexpand\folio}}}%
1800: \escapechar=`\\%
1801: \write \contentsfile \temp %
1802: \unnumbnoderef %
1803: \penalty 10000 %
1804: }}
1805:
1806: \outer\def\numberedsubsubsec{\parsearg\numberedsubsubseczzz}
1807: \def\numberedsubsubseczzz #1{\seccheck{subsubsection}%
1808: \gdef\thissection{#1}\global\advance \subsubsecno by 1 %
1809: \subsubsecheading {#1}
1810: {\the\chapno}{\the\secno}{\the\subsecno}{\the\subsubsecno}%
1811: {\chapternofonts%
1812: \edef\temp{{\realbackslash subsubsecentry %
1813: {#1}
1814: {\the\chapno}{\the\secno}{\the\subsecno}{\the\subsubsecno}
1815: {\noexpand\folio}}}%
1816: \escapechar=`\\%
1817: \write \contentsfile \temp %
1818: \donoderef %
1819: \penalty 10000 %
1820: }}
1821:
1822: \outer\def\appendixsubsubsec{\parsearg\appendixsubsubseczzz}
1823: \def\appendixsubsubseczzz #1{\seccheck{appendixsubsubsec}%
1824: \gdef\thissection{#1}\global\advance \subsubsecno by 1 %
1825: \subsubsecheading {#1}
1826: {\appendixletter}{\the\secno}{\the\subsecno}{\the\subsubsecno}%
1827: {\chapternofonts%
1828: \edef\temp{{\realbackslash subsubsecentry{#1}%
1829: {\appendixletter}
1830: {\the\secno}{\the\subsecno}{\the\subsubsecno}{\noexpand\folio}}}%
1831: \escapechar=`\\%
1832: \write \contentsfile \temp %
1833: \appendixnoderef %
1834: \penalty 10000 %
1835: }}
1836:
1837: \outer\def\unnumberedsubsubsec{\parsearg\unnumberedsubsubseczzz}
1838: \def\unnumberedsubsubseczzz #1{\seccheck{unnumberedsubsubsec}%
1839: \plainsecheading {#1}\gdef\thissection{#1}%
1840: {\chapternofonts%
1841: \edef\temp{{\realbackslash unnumbsubsubsecentry{#1}{\noexpand\folio}}}%
1842: \escapechar=`\\%
1843: \write \contentsfile \temp %
1844: \unnumbnoderef %
1845: \penalty 10000 %
1846: }}
1847:
1848: % These are variants which are not "outer", so they can appear in @ifinfo.
1849: % Actually, they should now be obsolete; ordinary section commands should work.
1850: \def\infotop{\parsearg\unnumberedzzz}
1851: \def\infounnumbered{\parsearg\unnumberedzzz}
1852: \def\infounnumberedsec{\parsearg\unnumberedseczzz}
1853: \def\infounnumberedsubsec{\parsearg\unnumberedsubseczzz}
1854: \def\infounnumberedsubsubsec{\parsearg\unnumberedsubsubseczzz}
1855:
1856: \def\infoappendix{\parsearg\appendixzzz}
1857: \def\infoappendixsec{\parsearg\appendixseczzz}
1858: \def\infoappendixsubsec{\parsearg\appendixsubseczzz}
1859: \def\infoappendixsubsubsec{\parsearg\appendixsubsubseczzz}
1860:
1861: \def\infochapter{\parsearg\chapterzzz}
1862: \def\infosection{\parsearg\sectionzzz}
1863: \def\infosubsection{\parsearg\subsectionzzz}
1864: \def\infosubsubsection{\parsearg\subsubsectionzzz}
1865:
1866: % These macros control what the section commands do, according
1867: % to what kind of chapter we are in (ordinary, appendix, or unnumbered).
1868: % Define them by default for a numbered chapter.
1869: \global\let\section = \numberedsec
1870: \global\let\subsection = \numberedsubsec
1871: \global\let\subsubsection = \numberedsubsubsec
1872:
1873: % Define @majorheading, @heading and @subheading
1874:
1875: % NOTE on use of \vbox for chapter headings, section headings, and
1876: % such:
1877: % 1) We use \vbox rather than the earlier \line to permit
1878: % overlong headings to fold.
1879: % 2) \hyphenpenalty is set to 10000 because hyphenation in a
1880: % heading is obnoxious; this forbids it.
1881: % 3) Likewise, headings look best if no \parindent is used, and
1882: % if justification is not attempted. Hence \raggedright.
1883:
1884:
1885: \def\majorheading{\parsearg\majorheadingzzz}
1886: \def\majorheadingzzz #1{%
1887: {\advance\chapheadingskip by 10pt \chapbreak }%
1888: {\chapfonts \vbox{\hyphenpenalty=10000\tolerance=5000
1889: \parindent=0pt\raggedright
1890: \rm #1\hfill}}\bigskip \par\penalty 200}
1891:
1892: \def\chapheading{\parsearg\chapheadingzzz}
1893: \def\chapheadingzzz #1{\chapbreak %
1894: {\chapfonts \vbox{\hyphenpenalty=10000\tolerance=5000
1895: \parindent=0pt\raggedright
1896: \rm #1\hfill}}\bigskip \par\penalty 200}
1897:
1898: \def\heading{\parsearg\secheadingi}
1899:
1900: \def\subheading{\parsearg\subsecheadingi}
1901:
1902: \def\subsubheading{\parsearg\subsubsecheadingi}
1903:
1904: % These macros generate a chapter, section, etc. heading only
1905: % (including whitespace, linebreaking, etc. around it),
1906: % given all the information in convenient, parsed form.
1907:
1908: %%% Args are the skip and penalty (usually negative)
1909: \def\dobreak#1#2{\par\ifdim\lastskip<#1\removelastskip\penalty#2\vskip#1\fi}
1910:
1911: \def\setchapterstyle #1 {\csname CHAPF#1\endcsname}
1912:
1913: %%% Define plain chapter starts, and page on/off switching for it
1914: % Parameter controlling skip before chapter headings (if needed)
1915:
1916: \newskip \chapheadingskip \chapheadingskip = 30pt plus 8pt minus 4pt
1917:
1918: \def\chapbreak{\dobreak \chapheadingskip {-4000}}
1919: \def\chappager{\par\vfill\supereject}
1920: \def\chapoddpage{\chappager \ifodd\pageno \else \hbox to 0pt{} \chappager\fi}
1921:
1922: \def\setchapternewpage #1 {\csname CHAPPAG#1\endcsname}
1923:
1924: \def\CHAPPAGoff{
1925: \global\let\pchapsepmacro=\chapbreak
1926: \global\let\pagealignmacro=\chappager}
1927:
1928: \def\CHAPPAGon{
1929: \global\let\pchapsepmacro=\chappager
1930: \global\let\pagealignmacro=\chappager
1931: \global\def\HEADINGSon{\HEADINGSsingle}}
1932:
1933: \def\CHAPPAGodd{
1934: \global\let\pchapsepmacro=\chapoddpage
1935: \global\let\pagealignmacro=\chapoddpage
1936: \global\def\HEADINGSon{\HEADINGSdouble}}
1937:
1938: \CHAPPAGon
1939:
1940: \def\CHAPFplain{
1941: \global\let\chapmacro=\chfplain
1942: \global\let\unnumbchapmacro=\unnchfplain}
1943:
1944: \def\chfplain #1#2{%
1945: \pchapsepmacro
1946: {%
1947: \chapfonts \vbox{\hyphenpenalty=10000\tolerance=5000
1948: \parindent=0pt\raggedright
1949: \rm #2\enspace #1}%
1950: }%
1951: \bigskip
1952: \penalty5000
1953: }
1954:
1955: \def\unnchfplain #1{%
1956: \pchapsepmacro %
1957: {\chapfonts \vbox{\hyphenpenalty=10000\tolerance=5000
1958: \parindent=0pt\raggedright
1959: \rm #1\hfill}}\bigskip \par\penalty 10000 %
1960: }
1961: \CHAPFplain % The default
1962:
1963: \def\unnchfopen #1{%
1964: \chapoddpage {\chapfonts \vbox{\hyphenpenalty=10000\tolerance=5000
1965: \parindent=0pt\raggedright
1966: \rm #1\hfill}}\bigskip \par\penalty 10000 %
1967: }
1968:
1969: \def\chfopen #1#2{\chapoddpage {\chapfonts
1970: \vbox to 3in{\vfil \hbox to\hsize{\hfil #2} \hbox to\hsize{\hfil #1} \vfil}}%
1971: \par\penalty 5000 %
1972: }
1973:
1974: \def\CHAPFopen{
1975: \global\let\chapmacro=\chfopen
1976: \global\let\unnumbchapmacro=\unnchfopen}
1977:
1978: % Parameter controlling skip before section headings.
1979:
1980: \newskip \subsecheadingskip \subsecheadingskip = 17pt plus 8pt minus 4pt
1981: \def\subsecheadingbreak{\dobreak \subsecheadingskip {-500}}
1982:
1983: \newskip \secheadingskip \secheadingskip = 21pt plus 8pt minus 4pt
1984: \def\secheadingbreak{\dobreak \secheadingskip {-1000}}
1985:
1986: % @paragraphindent is defined for the Info formatting commands only.
1987: \let\paragraphindent=\comment
1988:
1989: % Section fonts are the base font at magstep2, which produces
1990: % a size a bit more than 14 points in the default situation.
1991:
1992: \def\secheading #1#2#3{\secheadingi {#2.#3\enspace #1}}
1993: \def\plainsecheading #1{\secheadingi {#1}}
1994: \def\secheadingi #1{{\advance \secheadingskip by \parskip %
1995: \secheadingbreak}%
1996: {\secfonts \vbox{\hyphenpenalty=10000\tolerance=5000
1997: \parindent=0pt\raggedright
1998: \rm #1\hfill}}%
1999: \ifdim \parskip<10pt \kern 10pt\kern -\parskip\fi \penalty 10000 }
2000:
2001:
2002: % Subsection fonts are the base font at magstep1,
2003: % which produces a size of 12 points.
2004:
2005: \def\subsecheading #1#2#3#4{\subsecheadingi {#2.#3.#4\enspace #1}}
2006: \def\subsecheadingi #1{{\advance \subsecheadingskip by \parskip %
2007: \subsecheadingbreak}%
2008: {\subsecfonts \vbox{\hyphenpenalty=10000\tolerance=5000
2009: \parindent=0pt\raggedright
2010: \rm #1\hfill}}%
2011: \ifdim \parskip<10pt \kern 10pt\kern -\parskip\fi \penalty 10000 }
2012:
2013: \def\subsubsecfonts{\subsecfonts} % Maybe this should change:
2014: % Perhaps make sssec fonts scaled
2015: % magstep half
2016: \def\subsubsecheading #1#2#3#4#5{\subsubsecheadingi {#2.#3.#4.#5\enspace #1}}
2017: \def\subsubsecheadingi #1{{\advance \subsecheadingskip by \parskip %
2018: \subsecheadingbreak}%
2019: {\subsubsecfonts \vbox{\hyphenpenalty=10000\tolerance=5000
2020: \parindent=0pt\raggedright
2021: \rm #1\hfill}}%
2022: \ifdim \parskip<10pt \kern 10pt\kern -\parskip\fi \penalty 10000}
2023:
2024:
2025: \message{toc printing,}
2026:
2027: % Finish up the main text and prepare to read what we've written
2028: % to \contentsfile.
2029:
2030: \newskip\contentsrightmargin \contentsrightmargin=1in
2031: \def\startcontents#1{%
2032: \pagealignmacro
2033: \immediate\closeout \contentsfile
2034: \ifnum \pageno>0
2035: \pageno = -1 % Request roman numbered pages.
2036: \fi
2037: % Don't need to put `Contents' or `Short Contents' in the headline.
2038: % It is abundantly clear what they are.
2039: \unnumbchapmacro{#1}\def\thischapter{}%
2040: \begingroup % Set up to handle contents files properly.
2041: \catcode`\\=0 \catcode`\{=1 \catcode`\}=2 \catcode`\@=11
2042: \raggedbottom % Worry more about breakpoints than the bottom.
2043: \advance\hsize by -\contentsrightmargin % Don't use the full line length.
2044: }
2045:
2046:
2047: % Normal (long) toc.
2048: \outer\def\contents{%
2049: \startcontents{Table of Contents}%
2050: \input \jobname.toc
2051: \endgroup
2052: \vfill \eject
2053: }
2054:
2055: % And just the chapters.
2056: \outer\def\summarycontents{%
2057: \startcontents{Short Contents}%
2058: %
2059: \let\chapentry = \shortchapentry
2060: \let\unnumbchapentry = \shortunnumberedentry
2061: % We want a true roman here for the page numbers.
2062: \secfonts
2063: \let\rm=\shortcontrm \let\bf=\shortcontbf \let\sl=\shortcontsl
2064: \rm
2065: \advance\baselineskip by 1pt % Open it up a little.
2066: \def\secentry ##1##2##3##4{}
2067: \def\unnumbsecentry ##1##2{}
2068: \def\subsecentry ##1##2##3##4##5{}
2069: \def\unnumbsubsecentry ##1##2{}
2070: \def\subsubsecentry ##1##2##3##4##5##6{}
2071: \def\unnumbsubsubsecentry ##1##2{}
2072: \input \jobname.toc
2073: \endgroup
2074: \vfill \eject
2075: }
2076: \let\shortcontents = \summarycontents
2077:
2078: % These macros generate individual entries in the table of contents.
2079: % The first argument is the chapter or section name.
2080: % The last argument is the page number.
2081: % The arguments in between are the chapter number, section number, ...
2082:
2083: % Chapter-level things, for both the long and short contents.
2084: \def\chapentry#1#2#3{\dochapentry{#2\labelspace#1}{#3}}
2085:
2086: % See comments in \dochapentry re vbox and related settings
2087: \def\shortchapentry#1#2#3{%
2088: \vbox{\hyphenpenalty=10000\tolerance=5000
2089: \parindent=0pt\strut\raggedright
2090: {#2\labelspace #1}\dotfill\doshortpageno{#3}}%
2091: }
2092:
2093: \def\unnumbchapentry#1#2{\dochapentry{#1}{#2}}
2094: \def\shortunnumberedentry#1#2{%
2095: \vbox{\hyphenpenalty=10000\tolerance=5000
2096: \parindent=0pt\strut\raggedright
2097: #1\dotfill\doshortpageno{#2}}%
2098: }
2099:
2100: % Sections.
2101: \def\secentry#1#2#3#4{\dosecentry{#2.#3\labelspace#1}{#4}}
2102: \def\unnumbsecentry#1#2{\dosecentry{#1}{#2}}
2103:
2104: % Subsections.
2105: \def\subsecentry#1#2#3#4#5{\dosubsecentry{#2.#3.#4\labelspace#1}{#5}}
2106: \def\unnumbsubsecentry#1#2{\dosubsecentry{#1}{#2}}
2107:
2108: % And subsubsections.
2109: \def\subsubsecentry#1#2#3#4#5#6{%
2110: \dosubsubsecentry{#2.#3.#4.#5\labelspace#1}{#6}}
2111: \def\unnumbsubsubsecentry#1#2{\dosubsubsecentry{#1}{#2}}
2112:
2113:
2114: % This parameter controls the indentation of the various levels.
2115: \newdimen\tocindent \tocindent = 3pc
2116:
2117: % Now for the actual typesetting. In all these, #1 is the text and #2 is the
2118: % page number.
2119: %
2120: % If the toc has to be broken over pages, we would want to be at chapters
2121: % if at all possible; hence the \penalty.
2122: \def\dochapentry#1#2{%
2123: \penalty-300 \vskip\baselineskip
2124: % This \vbox (and similar ones in dosecentry etc.) used to be a
2125: % \line; changed to permit linebreaks for long headings. See
2126: % comments above \majorheading. Here we also use \strut to
2127: % keep the top end of the vbox from jamming up against the previous
2128: % entry in the table of contents.
2129: \vbox{\chapentryfonts
2130: \hyphenpenalty=10000\tolerance=5000 % this line and next introduced
2131: \parindent=0pt\strut\raggedright % with \line -> \vbox change
2132: #1\dotfill
2133: \dopageno{#2}}%
2134: \nobreak\vskip .25\baselineskip
2135: }
2136:
2137: \def\dosecentry#1#2{%
2138: \vbox{\secentryfonts \leftskip=\tocindent
2139: \hyphenpenalty=10000\tolerance=5000
2140: \parindent=0pt\strut\raggedright #1\dotfill
2141: \dopageno{#2}}%
2142: }
2143:
2144: \def\dosubsecentry#1#2{%
2145: \vbox{\subsecentryfonts \leftskip=2\tocindent
2146: \hyphenpenalty=10000\tolerance=5000
2147: \parindent=0pt\strut\raggedright #1\dotfill
2148: \dopageno{#2}}%
2149: }
2150:
2151: \def\dosubsubsecentry#1#2{%
2152: \vbox{\subsubsecentryfonts \leftskip=3\tocindent
2153: \hyphenpenalty=10000\tolerance=5000
2154: \parindent=0pt\strut\raggedright #1\dotfill
2155: \dopageno{#2}}%
2156: }
2157:
2158: % Space between chapter (or whatever) number and the title.
2159: \def\labelspace{\hskip1em \relax}
2160:
2161: \def\dopageno#1{{\rm #1}}
2162: \def\doshortpageno#1{{\rm #1}}
2163:
2164: \def\chapentryfonts{\secfonts \rm}
2165: \def\secentryfonts{\textfonts}
2166: \let\subsecentryfonts = \textfonts
2167: \let\subsubsecentryfonts = \textfonts
2168:
2169:
2170: \message{environments,}
2171:
2172: % Since these characters are used in examples, it should be an even number of
2173: % \tt widths. Each \tt character is 1en, so two makes it 1em.
2174: % Furthermore, these definitions must come after we define our fonts.
2175: \newbox\dblarrowbox \newbox\longdblarrowbox
2176: \newbox\pushcharbox \newbox\bullbox
2177: \newbox\equivbox \newbox\errorbox
2178:
2179: \let\ptexequiv = \equiv
2180:
2181: %{\tentt
2182: %\global\setbox\dblarrowbox = \hbox to 1em{\hfil$\Rightarrow$\hfil}
2183: %\global\setbox\longdblarrowbox = \hbox to 1em{\hfil$\mapsto$\hfil}
2184: %\global\setbox\pushcharbox = \hbox to 1em{\hfil$\dashv$\hfil}
2185: %\global\setbox\equivbox = \hbox to 1em{\hfil$\ptexequiv$\hfil}
2186: % Adapted from the manmac format (p.420 of TeXbook)
2187: %\global\setbox\bullbox = \hbox to 1em{\kern.15em\vrule height .75ex width .85ex
2188: % depth .1ex\hfil}
2189: %}
2190:
2191: \def\point{$\star$}
2192:
2193: \def\result{\leavevmode\raise.15ex\hbox to 1em{\hfil$\Rightarrow$\hfil}}
2194: \def\expansion{\leavevmode\raise.1ex\hbox to 1em{\hfil$\mapsto$\hfil}}
2195: \def\print{\leavevmode\lower.1ex\hbox to 1em{\hfil$\dashv$\hfil}}
2196:
2197: \def\equiv{\leavevmode\lower.1ex\hbox to 1em{\hfil$\ptexequiv$\hfil}}
2198:
2199: % Adapted from the TeXbook's \boxit.
2200: {\tentt \global\dimen0 = 3em}% Width of the box.
2201: \dimen2 = .55pt % Thickness of rules
2202: % The text. (`r' is open on the right, `e' somewhat less so on the left.)
2203: \setbox0 = \hbox{\kern-.75pt \tensf error\kern-1.5pt}
2204:
2205: \global\setbox\errorbox=\hbox to \dimen0{\hfil
2206: \hsize = \dimen0 \advance\hsize by -5.8pt % Space to left+right.
2207: \advance\hsize by -2\dimen2 % Rules.
2208: \vbox{
2209: \hrule height\dimen2
2210: \hbox{\vrule width\dimen2 \kern3pt % Space to left of text.
2211: \vtop{\kern2.4pt \box0 \kern2.4pt}% Space above/below.
2212: \kern3pt\vrule width\dimen2}% Space to right.
2213: \hrule height\dimen2}
2214: \hfil}
2215:
2216: % The @error{} command.
2217: \def\error{\leavevmode\lower.7ex\copy\errorbox}
2218:
2219: % @tex ... @end tex escapes into raw Tex temporarily.
2220: % One exception: @ is still an escape character, so that @end tex works.
2221: % But \@ or @@ will get a plain tex @ character.
2222:
2223: \def\tex{\begingroup
2224: \catcode `\\=0 \catcode `\{=1 \catcode `\}=2
2225: \catcode `\$=3 \catcode `\&=4 \catcode `\#=6
2226: \catcode `\^=7 \catcode `\_=8 \catcode `\~=13 \let~=\tie
2227: \catcode `\%=14
2228: \catcode 43=12
2229: \catcode`\"=12
2230: \catcode`\==12
2231: \catcode`\|=12
2232: \catcode`\<=12
2233: \catcode`\>=12
2234: \escapechar=`\\
2235: %
2236: \let\{=\ptexlbrace
2237: \let\}=\ptexrbrace
2238: \let\.=\ptexdot
2239: \let\*=\ptexstar
2240: \let\dots=\ptexdots
2241: \def\@{@}%
2242: \let\bullet=\ptexbullet
2243: \let\b=\ptexb \let\c=\ptexc \let\i=\ptexi \let\t=\ptext \let\l=\ptexl
2244: \let\L=\ptexL
2245: %
2246: \let\Etex=\endgroup}
2247:
2248: % Define @lisp ... @endlisp.
2249: % @lisp does a \begingroup so it can rebind things,
2250: % including the definition of @endlisp (which normally is erroneous).
2251:
2252: % Amount to narrow the margins by for @lisp.
2253: \newskip\lispnarrowing \lispnarrowing=0.4in
2254:
2255: % This is the definition that ^M gets inside @lisp
2256: % phr: changed space to \null, to avoid overfull hbox problems.
2257: {\obeyspaces%
2258: \gdef\lisppar{\null\endgraf}}
2259:
2260: % Cause \obeyspaces to make each Space cause a word-separation
2261: % rather than the default which is that it acts punctuation.
2262: % This is because space in tt font looks funny.
2263: {\obeyspaces %
2264: \gdef\sepspaces{\def {\ }}}
2265:
2266: \newskip\aboveenvskipamount \aboveenvskipamount= 0pt
2267: \def\aboveenvbreak{{\advance\aboveenvskipamount by \parskip
2268: \endgraf \ifdim\lastskip<\aboveenvskipamount
2269: \removelastskip \penalty-50 \vskip\aboveenvskipamount \fi}}
2270:
2271: \def\afterenvbreak{\endgraf \ifdim\lastskip<\aboveenvskipamount
2272: \removelastskip \penalty-50 \vskip\aboveenvskipamount \fi}
2273:
2274: % \nonarrowing is a flag. If "set", @lisp etc don't narrow margins.
2275: \let\nonarrowing=\relax
2276:
2277: %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
2278: % \cartouche: draw rectangle w/rounded corners around argument
2279: \font\circle=lcircle10
2280: \newdimen\circthick
2281: \newdimen\cartouter\newdimen\cartinner
2282: \newskip\normbskip\newskip\normpskip\newskip\normlskip
2283: \circthick=\fontdimen8\circle
2284: %
2285: \def\ctl{{\circle\char'013\hskip -6pt}}% 6pt from pl file: 1/2charwidth
2286: \def\ctr{{\hskip 6pt\circle\char'010}}
2287: \def\cbl{{\circle\char'012\hskip -6pt}}
2288: \def\cbr{{\hskip 6pt\circle\char'011}}
2289: \def\carttop{\hbox to \cartouter{\hskip\lskip
2290: \ctl\leaders\hrule height\circthick\hfil\ctr
2291: \hskip\rskip}}
2292: \def\cartbot{\hbox to \cartouter{\hskip\lskip
2293: \cbl\leaders\hrule height\circthick\hfil\cbr
2294: \hskip\rskip}}
2295: %
2296: \newskip\lskip\newskip\rskip
2297:
2298: \long\def\cartouche{%
2299: \begingroup
2300: \lskip=\leftskip \rskip=\rightskip
2301: \leftskip=0pt\rightskip=0pt %we want these *outside*.
2302: \cartinner=\hsize \advance\cartinner by-\lskip
2303: \advance\cartinner by-\rskip
2304: \cartouter=\hsize
2305: \advance\cartouter by 18pt % allow for 3pt kerns on either
2306: % side, and for 6pt waste from
2307: % each corner char
2308: \normbskip=\baselineskip \normpskip=\parskip \normlskip=\lineskip
2309: % Flag to tell @lisp, etc., not to narrow margin.
2310: \let\nonarrowing=\comment
2311: \vbox\bgroup
2312: \baselineskip=0pt\parskip=0pt\lineskip=0pt
2313: \carttop
2314: \hbox\bgroup
2315: \hskip\lskip
2316: \vrule\kern3pt
2317: \vbox\bgroup
2318: \hsize=\cartinner
2319: \kern3pt
2320: \begingroup
2321: \baselineskip=\normbskip
2322: \lineskip=\normlskip
2323: \parskip=\normpskip
2324: \vskip -\parskip
2325: \def\Ecartouche{%
2326: \endgroup
2327: \kern3pt
2328: \egroup
2329: \kern3pt\vrule
2330: \hskip\rskip
2331: \egroup
2332: \cartbot
2333: \egroup
2334: \endgroup
2335: }}
2336:
2337: \def\lisp{\aboveenvbreak
2338: \begingroup\inENV % This group ends at the end of the @lisp body
2339: \hfuzz=12truept % Don't be fussy
2340: % Make spaces be word-separators rather than space tokens.
2341: \sepspaces %
2342: % Single space lines
2343: \singlespace %
2344: % The following causes blank lines not to be ignored
2345: % by adding a space to the end of each line.
2346: \let\par=\lisppar
2347: \def\Elisp{\endgroup\afterenvbreak}%
2348: \parskip=0pt
2349: % @cartouche defines \nonarrowing to inhibit narrowing
2350: % at next level down.
2351: \ifx\nonarrowing\relax
2352: \advance \leftskip by \lispnarrowing
2353: \exdentamount=\lispnarrowing
2354: \let\exdent=\nofillexdent
2355: \let\nonarrowing=\relax
2356: \fi
2357: \parindent=0pt
2358: \obeyspaces \obeylines \tt \rawbackslash
2359: \def\next##1{}\next}
2360:
2361:
2362: \let\example=\lisp
2363: \def\Eexample{\Elisp}
2364:
2365: \let\smallexample=\lisp
2366: \def\Esmallexample{\Elisp}
2367:
2368: % Macro for 9 pt. examples, necessary to print with 5" lines.
2369: % From Pavel@xerox. This is not really used unless the
2370: % @smallbook command is given.
2371:
2372: \def\smalllispx{\aboveenvbreak\begingroup\inENV
2373: % This group ends at the end of the @lisp body
2374: \hfuzz=12truept % Don't be fussy
2375: % Make spaces be word-separators rather than space tokens.
2376: \sepspaces %
2377: % Single space lines
2378: \singlespace %
2379: % The following causes blank lines not to be ignored
2380: % by adding a space to the end of each line.
2381: \let\par=\lisppar
2382: \def\Esmalllisp{\endgroup\afterenvbreak}%
2383: %%%% Smaller baseline skip for small examples.
2384: \baselineskip 10pt
2385: \parskip=0pt
2386: % @cartouche defines \nonarrowing to inhibit narrowing
2387: % at next level down.
2388: \ifx\nonarrowing\relax
2389: \advance \leftskip by \lispnarrowing
2390: \exdentamount=\lispnarrowing
2391: \let\exdent=\nofillexdent
2392: \let\nonarrowing=\relax
2393: \fi
2394: \parindent=0pt
2395: \obeyspaces \obeylines \ninett \indexfonts \rawbackslash
2396: \def\next##1{}\next}
2397:
2398: % This is @display; same as @lisp except use roman font.
2399:
2400: \def\display{\begingroup\inENV %This group ends at the end of the @display body
2401: \aboveenvbreak
2402: % Make spaces be word-separators rather than space tokens.
2403: \sepspaces %
2404: % Single space lines
2405: \singlespace %
2406: % The following causes blank lines not to be ignored
2407: % by adding a space to the end of each line.
2408: \let\par=\lisppar
2409: \def\Edisplay{\endgroup\afterenvbreak}%
2410: \parskip=0pt
2411: % @cartouche defines \nonarrowing to inhibit narrowing
2412: % at next level down.
2413: \ifx\nonarrowing\relax
2414: \advance \leftskip by \lispnarrowing
2415: \exdentamount=\lispnarrowing
2416: \let\exdent=\nofillexdent
2417: \let\nonarrowing=\relax
2418: \fi
2419: \parindent=0pt
2420: \obeyspaces \obeylines
2421: \def\next##1{}\next}
2422:
2423: % This is @format; same as @lisp except use roman font and don't narrow margins
2424:
2425: \def\format{\begingroup\inENV %This group ends at the end of the @format body
2426: \aboveenvbreak
2427: % Make spaces be word-separators rather than space tokens.
2428: \sepspaces %
2429: \singlespace %
2430: % The following causes blank lines not to be ignored
2431: % by adding a space to the end of each line.
2432: \let\par=\lisppar
2433: \def\Eformat{\endgroup\afterenvbreak}
2434: \parskip=0pt \parindent=0pt
2435: \obeyspaces \obeylines
2436: \def\next##1{}\next}
2437:
2438: % @flushleft and @flushright
2439:
2440: \def\flushleft{%
2441: \begingroup\inENV %This group ends at the end of the @format body
2442: \aboveenvbreak
2443: % Make spaces be word-separators rather than space tokens.
2444: \sepspaces %
2445: % The following causes blank lines not to be ignored
2446: % by adding a space to the end of each line.
2447: % This also causes @ to work when the directive name
2448: % is terminated by end of line.
2449: \let\par=\lisppar
2450: \def\Eflushleft{\endgroup\afterenvbreak}%
2451: \parskip=0pt \parindent=0pt
2452: \obeyspaces \obeylines
2453: \def\next##1{}\next}
2454:
2455: \def\flushright{%
2456: \begingroup\inENV %This group ends at the end of the @format body
2457: \aboveenvbreak
2458: % Make spaces be word-separators rather than space tokens.
2459: \sepspaces %
2460: % The following causes blank lines not to be ignored
2461: % by adding a space to the end of each line.
2462: % This also causes @ to work when the directive name
2463: % is terminated by end of line.
2464: \let\par=\lisppar
2465: \def\Eflushright{\endgroup\afterenvbreak}%
2466: \parskip=0pt \parindent=0pt
2467: \advance \leftskip by 0pt plus 1fill
2468: \obeyspaces \obeylines
2469: \def\next##1{}\next}
2470:
2471: % @quotation - narrow the margins.
2472:
2473: \def\quotation{%
2474: \begingroup\inENV %This group ends at the end of the @quotation body
2475: {\parskip=0pt % because we will skip by \parskip too, later
2476: \aboveenvbreak}%
2477: \singlespace
2478: \parindent=0pt
2479: \def\Equotation{\par\endgroup\afterenvbreak}%
2480: % @cartouche defines \nonarrowing to inhibit narrowing
2481: % at next level down.
2482: \ifx\nonarrowing\relax
2483: \advance \leftskip by \lispnarrowing
2484: \advance \rightskip by \lispnarrowing
2485: \exdentamount=\lispnarrowing
2486: \let\nonarrowing=\relax
2487: \fi}
2488:
2489: \message{defuns,}
2490: % Define formatter for defuns
2491: % First, allow user to change definition object font (\df) internally
2492: \def\setdeffont #1 {\csname DEF#1\endcsname}
2493:
2494: \newskip\defbodyindent \defbodyindent=.4in
2495: \newskip\defargsindent \defargsindent=50pt
2496: \newskip\deftypemargin \deftypemargin=12pt
2497: \newskip\deflastargmargin \deflastargmargin=18pt
2498:
2499: \newcount\parencount
2500: % define \functionparens, which makes ( and ) and & do special things.
2501: % \functionparens affects the group it is contained in.
2502: \def\activeparens{%
2503: \catcode`\(=\active \catcode`\)=\active \catcode`\&=\active
2504: \catcode`\[=\active \catcode`\]=\active}
2505: {\activeparens % Now, smart parens don't turn on until &foo (see \amprm)
2506: \gdef\functionparens{\boldbrax\let&=\amprm\parencount=0 }
2507: \gdef\boldbrax{\let(=\opnr\let)=\clnr\let[=\lbrb\let]=\rbrb}
2508:
2509: % Definitions of (, ) and & used in args for functions.
2510: % This is the definition of ( outside of all parentheses.
2511: \gdef\oprm#1 {{\rm\char`\(}#1 \bf \let(=\opnested %
2512: \global\advance\parencount by 1 }
2513: %
2514: % This is the definition of ( when already inside a level of parens.
2515: \gdef\opnested{\char`\(\global\advance\parencount by 1 }
2516: %
2517: \gdef\clrm{% Print a paren in roman if it is taking us back to depth of 0.
2518: % also in that case restore the outer-level definition of (.
2519: \ifnum \parencount=1 {\rm \char `\)}\sl \let(=\oprm \else \char `\) \fi
2520: \global\advance \parencount by -1 }
2521: % If we encounter &foo, then turn on ()-hacking afterwards
2522: \gdef\amprm#1 {{\rm\}\let(=\oprm \let)=\clrm\ }
2523: %
2524: \gdef\normalparens{\boldbrax\let&=\ampnr}
2525: } % End of definition inside \activeparens
2526: %% These parens (in \boldbrax) actually are a little bolder than the
2527: %% contained text. This is especially needed for [ and ]
2528: \def\opnr{{\sf\char`\(}} \def\clnr{{\sf\char`\)}} \def\ampnr{\&}
2529: \def\lbrb{{\bf\char`\[}} \def\rbrb{{\bf\char`\]}}
2530:
2531: % First, defname, which formats the header line itself.
2532: % #1 should be the function name.
2533: % #2 should be the type of definition, such as "Function".
2534:
2535: \def\defname #1#2{%
2536: % Get the values of \leftskip and \rightskip as they were
2537: % outside the @def...
2538: \dimen2=\leftskip
2539: \advance\dimen2 by -\defbodyindent
2540: \dimen3=\rightskip
2541: \advance\dimen3 by -\defbodyindent
2542: \noindent %
2543: \setbox0=\hbox{\hskip \deflastargmargin{\rm #2}\hskip \deftypemargin}%
2544: \dimen0=\hsize \advance \dimen0 by -\wd0 % compute size for first line
2545: \dimen1=\hsize \advance \dimen1 by -\defargsindent %size for continuations
2546: \parshape 2 0in \dimen0 \defargsindent \dimen1 %
2547: % Now output arg 2 ("Function" or some such)
2548: % ending at \deftypemargin from the right margin,
2549: % but stuck inside a box of width 0 so it does not interfere with linebreaking
2550: {% Adjust \hsize to exclude the ambient margins,
2551: % so that \rightline will obey them.
2552: \advance \hsize by -\dimen2 \advance \hsize by -\dimen3
2553: \rlap{\rightline{{\rm #2}\hskip \deftypemargin}}}%
2554: % Make all lines underfull and no complaints:
2555: \tolerance=10000 \hbadness=10000
2556: \advance\leftskip by -\defbodyindent
2557: \exdentamount=\defbodyindent
2558: {\df #1}\enskip % Generate function name
2559: }
2560:
2561: % Actually process the body of a definition
2562: % #1 should be the terminating control sequence, such as \Edefun.
2563: % #2 should be the "another name" control sequence, such as \defunx.
2564: % #3 should be the control sequence that actually processes the header,
2565: % such as \defunheader.
2566:
2567: \def\defparsebody #1#2#3{\begingroup\inENV% Environment for definitionbody
2568: \medbreak %
2569: % Define the end token that this defining construct specifies
2570: % so that it will exit this group.
2571: \def#1{\endgraf\endgroup\medbreak}%
2572: \def#2{\begingroup\obeylines\activeparens\spacesplit#3}%
2573: \parindent=0in
2574: \advance\leftskip by \defbodyindent \advance \rightskip by \defbodyindent
2575: \exdentamount=\defbodyindent
2576: \begingroup %
2577: \catcode 61=\active %
2578: \obeylines\activeparens\spacesplit#3}
2579:
2580: \def\defmethparsebody #1#2#3#4 {\begingroup\inENV %
2581: \medbreak %
2582: % Define the end token that this defining construct specifies
2583: % so that it will exit this group.
2584: \def#1{\endgraf\endgroup\medbreak}%
2585: \def#2##1 {\begingroup\obeylines\activeparens\spacesplit{#3{##1}}}%
2586: \parindent=0in
2587: \advance\leftskip by \defbodyindent \advance \rightskip by \defbodyindent
2588: \exdentamount=\defbodyindent
2589: \begingroup\obeylines\activeparens\spacesplit{#3{#4}}}
2590:
2591: \def\defopparsebody #1#2#3#4#5 {\begingroup\inENV %
2592: \medbreak %
2593: % Define the end token that this defining construct specifies
2594: % so that it will exit this group.
2595: \def#1{\endgraf\endgroup\medbreak}%
2596: \def#2##1 ##2 {\def#4{##1}%
2597: \begingroup\obeylines\activeparens\spacesplit{#3{##2}}}%
2598: \parindent=0in
2599: \advance\leftskip by \defbodyindent \advance \rightskip by \defbodyindent
2600: \exdentamount=\defbodyindent
2601: \begingroup\obeylines\activeparens\spacesplit{#3{#5}}}
2602:
2603: % These parsing functions are similar to the preceding ones
2604: % except that they do not make parens into active characters.
2605: % These are used for "variables" since they have no arguments.
2606:
2607: \def\defvarparsebody #1#2#3{\begingroup\inENV% Environment for definitionbody
2608: \medbreak %
2609: % Define the end token that this defining construct specifies
2610: % so that it will exit this group.
2611: \def#1{\endgraf\endgroup\medbreak}%
2612: \def#2{\begingroup\obeylines\spacesplit#3}%
2613: \parindent=0in
2614: \advance\leftskip by \defbodyindent \advance \rightskip by \defbodyindent
2615: \exdentamount=\defbodyindent
2616: \begingroup %
2617: \catcode 61=\active %
2618: \obeylines\spacesplit#3}
2619:
2620: \def\defvrparsebody #1#2#3#4 {\begingroup\inENV %
2621: \medbreak %
2622: % Define the end token that this defining construct specifies
2623: % so that it will exit this group.
2624: \def#1{\endgraf\endgroup\medbreak}%
2625: \def#2##1 {\begingroup\obeylines\spacesplit{#3{##1}}}%
2626: \parindent=0in
2627: \advance\leftskip by \defbodyindent \advance \rightskip by \defbodyindent
2628: \exdentamount=\defbodyindent
2629: \begingroup\obeylines\spacesplit{#3{#4}}}
2630:
2631: \def\defopvarparsebody #1#2#3#4#5 {\begingroup\inENV %
2632: \medbreak %
2633: % Define the end token that this defining construct specifies
2634: % so that it will exit this group.
2635: \def#1{\endgraf\endgroup\medbreak}%
2636: \def#2##1 ##2 {\def#4{##1}%
2637: \begingroup\obeylines\spacesplit{#3{##2}}}%
2638: \parindent=0in
2639: \advance\leftskip by \defbodyindent \advance \rightskip by \defbodyindent
2640: \exdentamount=\defbodyindent
2641: \begingroup\obeylines\spacesplit{#3{#5}}}
2642:
2643: % Split up #2 at the first space token.
2644: % call #1 with two arguments:
2645: % the first is all of #2 before the space token,
2646: % the second is all of #2 after that space token.
2647: % If #2 contains no space token, all of it is passed as the first arg
2648: % and the second is passed as empty.
2649:
2650: {\obeylines
2651: \gdef\spacesplit#1#2^^M{\endgroup\spacesplitfoo{#1}#2 \relax\spacesplitfoo}%
2652: \long\gdef\spacesplitfoo#1#2 #3#4\spacesplitfoo{%
2653: \ifx\relax #3%
2654: #1{#2}{}\else #1{#2}{#3#4}\fi}}
2655:
2656: % So much for the things common to all kinds of definitions.
2657:
2658: % Define @defun.
2659:
2660: % First, define the processing that is wanted for arguments of \defun
2661: % Use this to expand the args and terminate the paragraph they make up
2662:
2663: \def\defunargs #1{\functionparens \sl
2664: % Expand, preventing hyphenation at `-' chars.
2665: % Note that groups don't affect changes in \hyphenchar.
2666: \hyphenchar\tensl=0
2667: #1%
2668: \hyphenchar\tensl=45
2669: \ifnum\parencount=0 \else \errmessage{unbalanced parens in @def arguments}\fi%
2670: \interlinepenalty=10000
2671: \advance\rightskip by 0pt plus 1fil
2672: \endgraf\penalty 10000\vskip -\parskip\penalty 10000%
2673: }
2674:
2675: \def\deftypefunargs #1{%
2676: % Expand, preventing hyphenation at `-' chars.
2677: % Note that groups don't affect changes in \hyphenchar.
2678: \functionparens
2679: \code{#1}%
2680: \interlinepenalty=10000
2681: \advance\rightskip by 0pt plus 1fil
2682: \endgraf\penalty 10000\vskip -\parskip\penalty 10000%
2683: }
2684:
2685: % Do complete processing of one @defun or @defunx line already parsed.
2686:
2687: % @deffn Command forward-char nchars
2688:
2689: \def\deffn{\defmethparsebody\Edeffn\deffnx\deffnheader}
2690:
2691: \def\deffnheader #1#2#3{\doind {fn}{\code{#2}}%
2692: \begingroup\defname {#2}{#1}\defunargs{#3}\endgroup %
2693: \catcode 61=\other % Turn off change made in \defparsebody
2694: }
2695:
2696: % @defun == @deffn Function
2697:
2698: \def\defun{\defparsebody\Edefun\defunx\defunheader}
2699:
2700: \def\defunheader #1#2{\doind {fn}{\code{#1}}% Make entry in function index
2701: \begingroup\defname {#1}{Function}%
2702: \defunargs {#2}\endgroup %
2703: \catcode 61=\other % Turn off change made in \defparsebody
2704: }
2705:
2706: % @deftypefun int foobar (int @var{foo}, float @var{bar})
2707:
2708: \def\deftypefun{\defparsebody\Edeftypefun\deftypefunx\deftypefunheader}
2709:
2710: % #1 is the data type. #2 is the name and args.
2711: \def\deftypefunheader #1#2{\deftypefunheaderx{#1}#2 \relax}
2712: % #1 is the data type, #2 the name, #3 the args.
2713: \def\deftypefunheaderx #1#2 #3\relax{%
2714: \doind {fn}{\code{#2}}% Make entry in function index
2715: \begingroup\defname {\code{#1} #2}{Function}%
2716: \deftypefunargs {#3}\endgroup %
2717: \catcode 61=\other % Turn off change made in \defparsebody
2718: }
2719:
2720: % @deftypefn {Library Function} int foobar (int @var{foo}, float @var{bar})
2721:
2722: \def\deftypefn{\defmethparsebody\Edeftypefn\deftypefnx\deftypefnheader}
2723:
2724: % #1 is the classification. #2 is the data type. #3 is the name and args.
2725: \def\deftypefnheader #1#2#3{\deftypefnheaderx{#1}{#2}#3 \relax}
2726: % #1 is the classification, #2 the data type, #3 the name, #4 the args.
2727: \def\deftypefnheaderx #1#2#3 #4\relax{%
2728: \doind {fn}{\code{#3}}% Make entry in function index
2729: \begingroup\defname {\code{#2} #3}{#1}%
2730: \deftypefunargs {#4}\endgroup %
2731: \catcode 61=\other % Turn off change made in \defparsebody
2732: }
2733:
2734: % @defmac == @deffn Macro
2735:
2736: \def\defmac{\defparsebody\Edefmac\defmacx\defmacheader}
2737:
2738: \def\defmacheader #1#2{\doind {fn}{\code{#1}}% Make entry in function index
2739: \begingroup\defname {#1}{Macro}%
2740: \defunargs {#2}\endgroup %
2741: \catcode 61=\other % Turn off change made in \defparsebody
2742: }
2743:
2744: % @defspec == @deffn Special Form
2745:
2746: \def\defspec{\defparsebody\Edefspec\defspecx\defspecheader}
2747:
2748: \def\defspecheader #1#2{\doind {fn}{\code{#1}}% Make entry in function index
2749: \begingroup\defname {#1}{Special Form}%
2750: \defunargs {#2}\endgroup %
2751: \catcode 61=\other % Turn off change made in \defparsebody
2752: }
2753:
2754: % This definition is run if you use @defunx
2755: % anywhere other than immediately after a @defun or @defunx.
2756:
2757: \def\deffnx #1 {\errmessage{@deffnx in invalid context}}
2758: \def\defunx #1 {\errmessage{@defunx in invalid context}}
2759: \def\defmacx #1 {\errmessage{@defmacx in invalid context}}
2760: \def\defspecx #1 {\errmessage{@defspecx in invalid context}}
2761: \def\deftypefnx #1 {\errmessage{@deftypefnx in invalid context}}
2762: \def\deftypeunx #1 {\errmessage{@deftypeunx in invalid context}}
2763:
2764: % @defmethod, and so on
2765:
2766: % @defop {Funny Method} foo-class frobnicate argument
2767:
2768: \def\defop #1 {\def\defoptype{#1}%
2769: \defopparsebody\Edefop\defopx\defopheader\defoptype}
2770:
2771: \def\defopheader #1#2#3{%
2772: \dosubind {fn}{\code{#2}}{on #1}% Make entry in function index
2773: \begingroup\defname {#2}{\defoptype{} on #1}%
2774: \defunargs {#3}\endgroup %
2775: }
2776:
2777: % @defmethod == @defop Method
2778:
2779: \def\defmethod{\defmethparsebody\Edefmethod\defmethodx\defmethodheader}
2780:
2781: \def\defmethodheader #1#2#3{%
2782: \dosubind {fn}{\code{#2}}{on #1}% entry in function index
2783: \begingroup\defname {#2}{Method on #1}%
2784: \defunargs {#3}\endgroup %
2785: }
2786:
2787: % @defcv {Class Option} foo-class foo-flag
2788:
2789: \def\defcv #1 {\def\defcvtype{#1}%
2790: \defopvarparsebody\Edefcv\defcvx\defcvarheader\defcvtype}
2791:
2792: \def\defcvarheader #1#2#3{%
2793: \dosubind {vr}{\code{#2}}{of #1}% Make entry in var index
2794: \begingroup\defname {#2}{\defcvtype{} of #1}%
2795: \defvarargs {#3}\endgroup %
2796: }
2797:
2798: % @defivar == @defcv {Instance Variable}
2799:
2800: \def\defivar{\defvrparsebody\Edefivar\defivarx\defivarheader}
2801:
2802: \def\defivarheader #1#2#3{%
2803: \dosubind {vr}{\code{#2}}{of #1}% Make entry in var index
2804: \begingroup\defname {#2}{Instance Variable of #1}%
2805: \defvarargs {#3}\endgroup %
2806: }
2807:
2808: % These definitions are run if you use @defmethodx, etc.,
2809: % anywhere other than immediately after a @defmethod, etc.
2810:
2811: \def\defopx #1 {\errmessage{@defopx in invalid context}}
2812: \def\defmethodx #1 {\errmessage{@defmethodx in invalid context}}
2813: \def\defcvx #1 {\errmessage{@defcvx in invalid context}}
2814: \def\defivarx #1 {\errmessage{@defivarx in invalid context}}
2815:
2816: % Now @defvar
2817:
2818: % First, define the processing that is wanted for arguments of @defvar.
2819: % This is actually simple: just print them in roman.
2820: % This must expand the args and terminate the paragraph they make up
2821: \def\defvarargs #1{\normalparens #1%
2822: \interlinepenalty=10000
2823: \endgraf\penalty 10000\vskip -\parskip\penalty 10000}
2824:
2825: % @defvr Counter foo-count
2826:
2827: \def\defvr{\defvrparsebody\Edefvr\defvrx\defvrheader}
2828:
2829: \def\defvrheader #1#2#3{\doind {vr}{\code{#2}}%
2830: \begingroup\defname {#2}{#1}\defvarargs{#3}\endgroup}
2831:
2832: % @defvar == @defvr Variable
2833:
2834: \def\defvar{\defvarparsebody\Edefvar\defvarx\defvarheader}
2835:
2836: \def\defvarheader #1#2{\doind {vr}{\code{#1}}% Make entry in var index
2837: \begingroup\defname {#1}{Variable}%
2838: \defvarargs {#2}\endgroup %
2839: }
2840:
2841: % @defopt == @defvr {User Option}
2842:
2843: \def\defopt{\defvarparsebody\Edefopt\defoptx\defoptheader}
2844:
2845: \def\defoptheader #1#2{\doind {vr}{\code{#1}}% Make entry in var index
2846: \begingroup\defname {#1}{User Option}%
2847: \defvarargs {#2}\endgroup %
2848: }
2849:
2850: % @deftypevar int foobar
2851:
2852: \def\deftypevar{\defvarparsebody\Edeftypevar\deftypevarx\deftypevarheader}
2853:
2854: % #1 is the data type. #2 is the name.
2855: \def\deftypevarheader #1#2{%
2856: \doind {vr}{\code{#2}}% Make entry in variables index
2857: \begingroup\defname {\code{#1} #2}{Variable}%
2858: \interlinepenalty=10000
2859: \endgraf\penalty 10000\vskip -\parskip\penalty 10000
2860: \endgroup}
2861:
2862: % @deftypevr {Global Flag} int enable
2863:
2864: \def\deftypevr{\defvrparsebody\Edeftypevr\deftypevrx\deftypevrheader}
2865:
2866: \def\deftypevrheader #1#2#3{\doind {vr}{\code{#3}}%
2867: \begingroup\defname {\code{#2} #3}{#1}
2868: \interlinepenalty=10000
2869: \endgraf\penalty 10000\vskip -\parskip\penalty 10000
2870: \endgroup}
2871:
2872: % This definition is run if you use @defvarx
2873: % anywhere other than immediately after a @defvar or @defvarx.
2874:
2875: \def\defvrx #1 {\errmessage{@defvrx in invalid context}}
2876: \def\defvarx #1 {\errmessage{@defvarx in invalid context}}
2877: \def\defoptx #1 {\errmessage{@defoptx in invalid context}}
2878: \def\deftypevarx #1 {\errmessage{@deftypevarx in invalid context}}
2879: \def\deftypevrx #1 {\errmessage{@deftypevrx in invalid context}}
2880:
2881: % Now define @deftp
2882: % Args are printed in bold, a slight difference from @defvar.
2883:
2884: \def\deftpargs #1{\bf \defvarargs{#1}}
2885:
2886: % @deftp Class window height width ...
2887:
2888: \def\deftp{\defvrparsebody\Edeftp\deftpx\deftpheader}
2889:
2890: \def\deftpheader #1#2#3{\doind {tp}{\code{#2}}%
2891: \begingroup\defname {#2}{#1}\deftpargs{#3}\endgroup}
2892:
2893: % This definition is run if you use @deftpx, etc
2894: % anywhere other than immediately after a @deftp, etc.
2895:
2896: \def\deftpx #1 {\errmessage{@deftpx in invalid context}}
2897:
2898: \message{cross reference,}
2899: % Define cross-reference macros
2900: \newwrite \auxfile
2901:
2902: \newif\ifhavexrefs % True if xref values are known.
2903: \newif\ifwarnedxrefs % True if we warned once that they aren't known.
2904:
2905: % \setref{foo} defines a cross-reference point named foo.
2906:
2907: \def\setref#1{%
2908: %\dosetq{#1-title}{Ytitle}%
2909: \dosetq{#1-pg}{Ypagenumber}%
2910: \dosetq{#1-snt}{Ysectionnumberandtype}}
2911:
2912: \def\unnumbsetref#1{%
2913: %\dosetq{#1-title}{Ytitle}%
2914: \dosetq{#1-pg}{Ypagenumber}%
2915: \dosetq{#1-snt}{Ynothing}}
2916:
2917: \def\appendixsetref#1{%
2918: %\dosetq{#1-title}{Ytitle}%
2919: \dosetq{#1-pg}{Ypagenumber}%
2920: \dosetq{#1-snt}{Yappendixletterandtype}}
2921:
2922: % \xref, \pxref, and \ref generate cross-references to specified points.
2923: % For \xrefX, #1 is the node name, #2 the name of the Info
2924: % cross-reference, #3 the printed node name, #4 the name of the Info
2925: % file, #5 the name of the printed manual. All but the node name can be
2926: % omitted.
2927: %
2928: \def\pxref#1{see \xrefX[#1,,,,,,,]}
2929: \def\xref#1{See \xrefX[#1,,,,,,,]}
2930: \def\ref#1{\xrefX[#1,,,,,,,]}
2931: \def\xrefX[#1,#2,#3,#4,#5,#6]{\begingroup%
2932: \def\printedmanual{\ignorespaces #5}%
2933: \def\printednodename{\ignorespaces #3}%
2934: %
2935: \setbox1=\hbox{\printedmanual}%
2936: \setbox0=\hbox{\printednodename}%
2937: \ifdim \wd0=0pt%
2938: \def\printednodename{\ignorespaces #1}%
2939: %%% Uncommment the following line to make the actual chapter or section title
2940: %%% appear inside the square brackets.
2941: %\def\printednodename{#1-title}%
2942: \fi%
2943: %
2944: %
2945: % If we use \unhbox0 and \unhbox1 to print the node names, TeX does
2946: % not insert empty discretionaries after hyphens, which means that it
2947: % will not find a line break at a hyphen in a node names. Since some
2948: % manuals are best written with fairly long node names, containing
2949: % hyphens, this is a loss. Therefore, we simply give the text of
2950: % the node name again, so it is as if TeX is seeing it for the first
2951: % time.
2952: \ifdim \wd1>0pt
2953: section ``\printednodename'' in \cite{\printedmanual}%
2954: \else%
2955: \turnoffactive%
2956: \refx{#1-snt}{} [\printednodename], page\tie\refx{#1-pg}{}%
2957: \fi
2958: \endgroup}
2959:
2960: % \dosetq is the interface for calls from other macros
2961:
2962: % Use \turnoffactive so that punctuation chars such as underscore
2963: % work in node names.
2964: \def\dosetq #1#2{{\let\folio=0 \turnoffactive%
2965: \edef\next{\write\auxfile{\internalsetq {#1}{#2}}}%
2966: \next}}
2967:
2968: % \internalsetq {foo}{page} expands into
2969: % CHARACTERS 'xrdef {foo}{...expansion of \Ypage...}
2970: % When the aux file is read, ' is the escape character
2971:
2972: \def\internalsetq #1#2{'xrdef {#1}{\csname #2\endcsname}}
2973:
2974: % Things to be expanded by \internalsetq
2975:
2976: \def\Ypagenumber{\folio}
2977:
2978: \def\Ytitle{\thischapter}
2979:
2980: \def\Ynothing{}
2981:
2982: \def\Ysectionnumberandtype{%
2983: \ifnum\secno=0 Chapter\xreftie\the\chapno %
2984: \else \ifnum \subsecno=0 Section\xreftie\the\chapno.\the\secno %
2985: \else \ifnum \subsubsecno=0 %
2986: Section\xreftie\the\chapno.\the\secno.\the\subsecno %
2987: \else %
2988: Section\xreftie\the\chapno.\the\secno.\the\subsecno.\the\subsubsecno %
2989: \fi \fi \fi }
2990:
2991: \def\Yappendixletterandtype{%
2992: \ifnum\secno=0 Appendix\xreftie'char\the\appendixno{}%
2993: \else \ifnum \subsecno=0 Section\xreftie'char\the\appendixno.\the\secno %
2994: \else \ifnum \subsubsecno=0 %
2995: Section\xreftie'char\the\appendixno.\the\secno.\the\subsecno %
2996: \else %
2997: Section\xreftie'char\the\appendixno.\the\secno.\the\subsecno.\the\subsubsecno %
2998: \fi \fi \fi }
2999:
3000: \gdef\xreftie{'tie}
3001:
3002: % Use TeX 3.0's \inputlineno to get the line number, for better error
3003: % messages, but if we're using an old version of TeX, don't do anything.
3004: %
3005: \ifx\inputlineno\thisisundefined
3006: \let\linenumber = \empty % Non-3.0.
3007: \else
3008: \def\linenumber{\the\inputlineno:\space}
3009: \fi
3010:
3011: % Define \refx{NAME}{SUFFIX} to reference a cross-reference string named NAME.
3012: % If its value is nonempty, SUFFIX is output afterward.
3013:
3014: \def\refx#1#2{%
3015: \expandafter\ifx\csname X#1\endcsname\relax
3016: % If not defined, say something at least.
3017: $\langle$un\-de\-fined$\rangle$%
3018: \ifhavexrefs
3019: \message{\linenumber Undefined cross reference `#1'.}%
3020: \else
3021: \ifwarnedxrefs\else
3022: \global\warnedxrefstrue
3023: \message{Cross reference values unknown; you must run TeX again.}%
3024: \fi
3025: \fi
3026: \else
3027: % It's defined, so just use it.
3028: \csname X#1\endcsname
3029: \fi
3030: #2% Output the suffix in any case.
3031: }
3032:
3033: % Read the last existing aux file, if any. No error if none exists.
3034:
3035: % This is the macro invoked by entries in the aux file.
3036: \def\xrdef #1#2{
3037: {\catcode`\'=\other\expandafter \gdef \csname X#1\endcsname {#2}}}
3038:
3039: \def\readauxfile{%
3040: \begingroup
3041: \catcode `\^^@=\other
3042: \catcode `\&=\other
3043: \catcode `\=\other
3044: \catcode `\^^C=\other
3045: \catcode `\^^D=\other
3046: \catcode `\^^E=\other
3047: \catcode `\^^F=\other
3048: \catcode `\^^G=\other
3049: \catcode `\^^H=\other
3050: \catcode `\ =\other
3051: \catcode `\^^L=\other
3052: \catcode `\=\other
3053: \catcode `\=\other
3054: \catcode `\=\other
3055: \catcode `\=\other
3056: \catcode `\=\other
3057: \catcode `\=\other
3058: \catcode `\=\other
3059: \catcode `\=\other
3060: \catcode `\=\other
3061: \catcode `\=\other
3062: \catcode `\=\other
3063: \catcode `\=\other
3064: \catcode 26=\other
3065: \catcode `\^^[=\other
3066: \catcode `\^^\=\other
3067: \catcode `\^^]=\other
3068: \catcode `\^^^=\other
3069: \catcode `\^^_=\other
3070: \catcode `\@=\other
3071: \catcode `\^=\other
3072: \catcode `\~=\other
3073: \catcode `\[=\other
3074: \catcode `\]=\other
3075: \catcode`\"=\other
3076: \catcode`\_=\other
3077: \catcode`\|=\other
3078: \catcode`\<=\other
3079: \catcode`\>=\other
3080: \catcode `\$=\other
3081: \catcode `\#=\other
3082: \catcode `\&=\other
3083: % the aux file uses ' as the escape.
3084: % Turn off \ as an escape so we do not lose on
3085: % entries which were dumped with control sequences in their names.
3086: % For example, 'xrdef {$\leq $-fun}{page ...} made by @defun ^^
3087: % Reference to such entries still does not work the way one would wish,
3088: % but at least they do not bomb out when the aux file is read in.
3089: \catcode `\{=1 \catcode `\}=2
3090: \catcode `\%=\other
3091: \catcode `\'=0
3092: \catcode `\\=\other
3093: \openin 1 \jobname.aux
3094: \ifeof 1 \else \closein 1 \input \jobname.aux \global\havexrefstrue
3095: \fi
3096: % Open the new aux file. Tex will close it automatically at exit.
3097: \openout \auxfile=\jobname.aux
3098: \endgroup}
3099:
3100:
3101: % Footnotes.
3102:
3103: \newcount \footnoteno
3104:
3105: % The trailing space in the following definition for supereject is
3106: % vital for proper filling; pages come out unaligned when you do a
3107: % pagealignmacro call if that space before the closing brace is
3108: % removed.
3109: \def\supereject{\par\penalty -20000\footnoteno =0 }
3110:
3111: % @footnotestyle is meaningful for info output only..
3112: \let\footnotestyle=\comment
3113:
3114: \let\ptexfootnote=\footnote
3115:
3116: {\catcode `\@=11
3117: \long\gdef\footnote #1{\global\advance \footnoteno by \@ne
3118: \unskip
3119: \edef\thisfootno{$^{\the\footnoteno}$}%
3120: \let\@sf\empty
3121: \ifhmode\edef\@sf{\spacefactor\the\spacefactor}\/\fi
3122: \thisfootno\@sf \footnotezzz{#1}}
3123: % \parsearg\footnotezzz}
3124:
3125: \long\gdef\footnotezzz #1{\insert\footins{
3126: \interlinepenalty\interfootnotelinepenalty
3127: \splittopskip\ht\strutbox % top baseline for broken footnotes
3128: \splitmaxdepth\dp\strutbox \floatingpenalty\@MM
3129: \leftskip\z@skip \rightskip\z@skip \spaceskip\z@skip \xspaceskip\z@skip
3130: \footstrut\parindent=\defaultparindent\hang\textindent{\thisfootno}#1\strut}}
3131:
3132: }%end \catcode `\@=11
3133:
3134: % End of control word definitions.
3135:
3136: \message{and turning on texinfo input format.}
3137:
3138: \def\openindices{%
3139: \newindex{cp}%
3140: \newcodeindex{fn}%
3141: \newcodeindex{vr}%
3142: \newcodeindex{tp}%
3143: \newcodeindex{ky}%
3144: \newcodeindex{pg}%
3145: }
3146:
3147: % Set some numeric style parameters, for 8.5 x 11 format.
3148:
3149: %\hsize = 6.5in
3150: \newdimen\defaultparindent \defaultparindent = 15pt
3151: \parindent = \defaultparindent
3152: \parskip 18pt plus 1pt
3153: \baselineskip 15pt
3154: \advance\topskip by 1.2cm
3155:
3156: % Prevent underfull vbox error messages.
3157: \vbadness=10000
3158:
3159: % Following George Bush, just get rid of widows and orphans.
3160: \widowpenalty=10000
3161: \clubpenalty=10000
3162:
3163: % Use TeX 3.0's \emergencystretch to help line breaking, but if we're
3164: % using an old version of TeX, don't do anything. We want the amount of
3165: % stretch added to depend on the line length, hence the dependence on
3166: % \hsize. This makes it come to about 9pt for the 8.5x11 format.
3167: %
3168: \ifx\emergencystretch\thisisundefined \else
3169: \emergencystretch = \hsize
3170: \divide\emergencystretch by 45
3171: \fi
3172:
3173: % Use @smallbook to reset parameters for 7x9.5 format (or else 7x9.25)
3174: \def\smallbook{
3175: \global\lispnarrowing = 0.3in
3176: \global\baselineskip 12pt
3177: \advance\topskip by -1cm
3178: \global\parskip 3pt plus 1pt
3179: \global\hsize = 5in
3180: \global\doublecolumnhsize=2.4in \global\doublecolumnvsize=15.0in
3181: \global\vsize=7.5in
3182: \global\tolerance=700
3183: \global\hfuzz=1pt
3184: \global\contentsrightmargin=0pt
3185:
3186: \global\pagewidth=\hsize
3187: \global\pageheight=\vsize
3188:
3189: \global\let\smalllisp=\smalllispx
3190: \global\let\smallexample=\smalllispx
3191: \global\def\Esmallexample{\Esmalllisp}
3192: }
3193:
3194: % Use @afourpaper to print on European A4 paper.
3195: \def\afourpaper{
3196: \global\tolerance=700
3197: \global\hfuzz=1pt
3198: \global\baselineskip=12pt
3199: \global\parskip 15pt plus 1pt
3200:
3201: \global\vsize= 53\baselineskip
3202: \advance\vsize by \topskip
3203: %\global\hsize= 5.85in % A4 wide 10pt
3204: \global\hsize= 6.5in
3205: \global\outerhsize=\hsize
3206: \global\advance\outerhsize by 0.5in
3207: \global\outervsize=\vsize
3208: \global\advance\outervsize by 0.6in
3209: \global\doublecolumnhsize=\hsize
3210: \global\divide\doublecolumnhsize by 2
3211: \global\advance\doublecolumnhsize by -0.1in
3212: \global\doublecolumnvsize=\vsize
3213: \global\multiply\doublecolumnvsize by 2
3214: \global\advance\doublecolumnvsize by 0.1in
3215:
3216: \global\pagewidth=\hsize
3217: \global\pageheight=\vsize
3218: }
3219:
3220: %% For a final copy, take out the rectangles
3221: %% that mark overfull boxes (in case you have decided
3222: %% that the text looks ok even though it passes the margin).
3223: \def\finalout{\overfullrule=0pt}
3224:
3225: % Define macros to output various characters with catcode for normal text.
3226: \catcode`\"=\other
3227: \catcode`\~=\other
3228: \catcode`\^=\other
3229: \catcode`\_=\other
3230: \catcode`\|=\other
3231: \catcode`\<=\other
3232: \catcode`\>=\other
3233: \catcode`\+=\other
3234: \def\normaldoublequote{"}
3235: \def\normaltilde{~}
3236: \def\normalcaret{^}
3237: \def\normalunderscore{_}
3238: \def\normalverticalbar{|}
3239: \def\normalless{<}
3240: \def\normalgreater{>}
3241: \def\normalplus{+}
3242:
3243: % This macro is used to make a character print one way in ttfont
3244: % where it can probably just be output, and another way in other fonts,
3245: % where something hairier probably needs to be done.
3246: %
3247: % #1 is what to print if we are indeed using \tt; #2 is what to print
3248: % otherwise. Since all the Computer Modern typewriter fonts have zero
3249: % interword stretch (and shrink), and it is reasonable to expect all
3250: % typewriter fonts to have this, we can check that font parameter.
3251: %
3252: \def\ifusingtt#1#2{\ifdim \fontdimen3\the\font=0pt #1\else #2\fi}
3253:
3254: % Turn off all special characters except @
3255: % (and those which the user can use as if they were ordinary).
3256: % Most of these we simply print from the \tt font, but for some, we can
3257: % use math or other variants that look better in normal text.
3258:
3259: \catcode`\"=\active
3260: \def\activedoublequote{{\tt \char '042}}
3261: \let"=\activedoublequote
3262: \catcode`\~=\active
3263: \def~{{\tt \char '176}}
3264: \chardef\hat=`\^
3265: \catcode`\^=\active
3266: \def^{{\tt \hat}}
3267:
3268: \catcode`\_=\active
3269: \def_{\ifusingtt\normalunderscore\_}
3270: % Subroutine for the previous macro.
3271: \def\_{\lvvmode \kern.06em \vbox{\hrule width.3em height.1ex}}
3272:
3273: % \lvvmode is equivalent in function to \leavevmode.
3274: % Using \leavevmode runs into trouble when written out to
3275: % an index file due to the expansion of \leavevmode into ``\unhbox
3276: % \voidb@x'' ---which looks to TeX like ``\unhbox \voidb\x'' due to our
3277: % magic tricks with @.
3278: \def\lvvmode{\vbox to 0pt{}}
3279:
3280: \catcode`\|=\active
3281: \def|{{\tt \char '174}}
3282: \chardef \less=`\<
3283: \catcode`\<=\active
3284: \def<{{\tt \less}}
3285: \chardef \gtr=`\>
3286: \catcode`\>=\active
3287: \def>{{\tt \gtr}}
3288: \catcode`\+=\active
3289: \def+{{\tt \char 43}}
3290: %\catcode 27=\active
3291: %\def^^[{$\diamondsuit$}
3292:
3293: % Used sometimes to turn off (effectively) the active characters
3294: % even after parsing them.
3295: \def\turnoffactive{\let"=\normaldoublequote
3296: \let~=\normaltilde
3297: \let^=\normalcaret
3298: \let_=\normalunderscore
3299: \let|=\normalverticalbar
3300: \let<=\normalless
3301: \let>=\normalgreater
3302: \let+=\normalplus}
3303:
3304: % Set up an active definition for =, but don't enable it most of the time.
3305: {\catcode`\==\active
3306: \global\def={{\tt \char 61}}}
3307:
3308: \catcode`\@=0
3309:
3310: % \rawbackslashxx output one backslash character in current font
3311: \global\chardef\rawbackslashxx=`\\
3312: %{\catcode`\\=\other
3313: %@gdef@rawbackslashxx{\}}
3314:
3315: % \rawbackslash redefines \ as input to do \rawbackslashxx.
3316: {\catcode`\\=\active
3317: @gdef@rawbackslash{@let\=@rawbackslashxx }}
3318:
3319: % \normalbackslash outputs one backslash in fixed width font.
3320: \def\normalbackslash{{\tt\rawbackslashxx}}
3321:
3322: % Say @foo, not \foo, in error messages.
3323: \escapechar=`\@
3324:
3325: % \catcode 17=0 % Define control-q
3326: \catcode`\\=\active
3327:
3328: % If a .fmt file is being used, we don't want the `\input texinfo' to show up.
3329: % That is what \eatinput is for; after that, the `\' should revert to printing
3330: % a backslash.
3331: %
3332: @gdef@eatinput input texinfo{@fixbackslash}
3333: @global@let\ = @eatinput
3334:
3335: % On the other hand, perhaps the file did not have a `\input texinfo'. Then
3336: % the first `\{ in the file would cause an error. This macro tries to fix
3337: % that, assuming it is called before the first `\' could plausibly occur.
3338: %
3339: @gdef@fixbackslash{@ifx\@eatinput @let\ = @normalbackslash @fi}
3340:
3341: %% These look ok in all fonts, so just make them not special. The @rm below
3342: %% makes sure that the current font starts out as the newly loaded cmr10
3343: @catcode`@$=@other @catcode`@%=@other @catcode`@&=@other @catcode`@#=@other
3344:
3345: @textfonts
3346: @rm
3347:
3348: @c Local variables:
3349: @c page-delimiter: "^\\\\message"
3350: @c End:
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