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ff35fedc | 1 | % texinfo.tex -- TeX macros to handle Texinfo files. |
ff35fedc | 2 | % |
449f3b6c AC |
3 | % Load plain if necessary, i.e., if running under initex. |
4 | \expandafter\ifx\csname fmtname\endcsname\relax\input plain\fi | |
5 | % | |
bd48e1a9 | 6 | \def\texinfoversion{2002-02-14.08} |
449f3b6c | 7 | % |
bd48e1a9 AC |
8 | % Copyright (C) 1985, 86, 88, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, |
9 | % 2000, 01, 02 Free Software Foundation, Inc. | |
ff35fedc ILT |
10 | % |
11 | % This texinfo.tex file is free software; you can redistribute it and/or | |
12 | % modify it under the terms of the GNU General Public License as | |
13 | % published by the Free Software Foundation; either version 2, or (at | |
14 | % your option) any later version. | |
15 | % | |
16 | % This texinfo.tex file is distributed in the hope that it will be | |
17 | % useful, but WITHOUT ANY WARRANTY; without even the implied warranty | |
18 | % of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
19 | % General Public License for more details. | |
20 | % | |
21 | % You should have received a copy of the GNU General Public License | |
22 | % along with this texinfo.tex file; see the file COPYING. If not, write | |
23 | % to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
24 | % Boston, MA 02111-1307, USA. | |
25 | % | |
26 | % In other words, you are welcome to use, share and improve this program. | |
27 | % You are forbidden to forbid anyone else to use, share and improve | |
28 | % what you give them. Help stamp out software-hoarding! | |
29 | % | |
30 | % Please try the latest version of texinfo.tex before submitting bug | |
31 | % reports; you can get the latest version from: | |
449f3b6c | 32 | % ftp://ftp.gnu.org/gnu/texinfo.tex |
bd48e1a9 AC |
33 | % (and all GNU mirrors, see http://www.gnu.org/order/ftp.html) |
34 | % ftp://texinfo.org/texinfo/texinfo.tex | |
35 | % ftp://tug.org/tex/texinfo.tex | |
36 | % (and all CTAN mirrors, see http://www.ctan.org), | |
37 | % and /home/gd/gnu/doc/texinfo.tex on the GNU machines. | |
38 | % | |
449f3b6c | 39 | % The texinfo.tex in any given Texinfo distribution could well be out |
ff35fedc | 40 | % of date, so if that's what you're using, please check. |
bd48e1a9 AC |
41 | % |
42 | % Texinfo has a small home page at http://texinfo.org/ and also | |
43 | % http://www.gnu.org/software/texinfo. | |
449f3b6c AC |
44 | % |
45 | % Send bug reports to bug-texinfo@gnu.org. Please include including a | |
46 | % complete document in each bug report with which we can reproduce the | |
47 | % problem. Patches are, of course, greatly appreciated. | |
48 | % | |
ff35fedc | 49 | % To process a Texinfo manual with TeX, it's most reliable to use the |
449f3b6c AC |
50 | % texi2dvi shell script that comes with the distribution. For a simple |
51 | % manual foo.texi, however, you can get away with this: | |
ff35fedc ILT |
52 | % tex foo.texi |
53 | % texindex foo.?? | |
54 | % tex foo.texi | |
55 | % tex foo.texi | |
449f3b6c | 56 | % dvips foo.dvi -o # or whatever, to process the dvi file; this makes foo.ps. |
bd48e1a9 | 57 | % The extra TeX runs get the cross-reference information correct. |
ff35fedc ILT |
58 | % Sometimes one run after texindex suffices, and sometimes you need more |
59 | % than two; texi2dvi does it as many times as necessary. | |
449f3b6c AC |
60 | % |
61 | % It is possible to adapt texinfo.tex for other languages. You can get | |
bd48e1a9 | 62 | % the existing language-specific files from the full Texinfo distribution. |
ff35fedc | 63 | |
449f3b6c | 64 | \message{Loading texinfo [version \texinfoversion]:} |
ff35fedc ILT |
65 | |
66 | % If in a .fmt file, print the version number | |
67 | % and turn on active characters that we couldn't do earlier because | |
68 | % they might have appeared in the input file name. | |
449f3b6c | 69 | \everyjob{\message{[Texinfo version \texinfoversion]}% |
ff35fedc ILT |
70 | \catcode`+=\active \catcode`\_=\active} |
71 | ||
72 | % Save some parts of plain tex whose names we will redefine. | |
ff35fedc ILT |
73 | \let\ptexb=\b |
74 | \let\ptexbullet=\bullet | |
75 | \let\ptexc=\c | |
76 | \let\ptexcomma=\, | |
77 | \let\ptexdot=\. | |
78 | \let\ptexdots=\dots | |
79 | \let\ptexend=\end | |
80 | \let\ptexequiv=\equiv | |
81 | \let\ptexexclam=\! | |
82 | \let\ptexi=\i | |
83 | \let\ptexlbrace=\{ | |
84 | \let\ptexrbrace=\} | |
85 | \let\ptexstar=\* | |
86 | \let\ptext=\t | |
87 | ||
88 | % We never want plain's outer \+ definition in Texinfo. | |
89 | % For @tex, we can use \tabalign. | |
90 | \let\+ = \relax | |
91 | ||
ff35fedc ILT |
92 | \message{Basics,} |
93 | \chardef\other=12 | |
94 | ||
95 | % If this character appears in an error message or help string, it | |
96 | % starts a new line in the output. | |
97 | \newlinechar = `^^J | |
98 | ||
99 | % Set up fixed words for English if not already set. | |
449f3b6c AC |
100 | \ifx\putwordAppendix\undefined \gdef\putwordAppendix{Appendix}\fi |
101 | \ifx\putwordChapter\undefined \gdef\putwordChapter{Chapter}\fi | |
102 | \ifx\putwordfile\undefined \gdef\putwordfile{file}\fi | |
103 | \ifx\putwordin\undefined \gdef\putwordin{in}\fi | |
104 | \ifx\putwordIndexIsEmpty\undefined \gdef\putwordIndexIsEmpty{(Index is empty)}\fi | |
105 | \ifx\putwordIndexNonexistent\undefined \gdef\putwordIndexNonexistent{(Index is nonexistent)}\fi | |
106 | \ifx\putwordInfo\undefined \gdef\putwordInfo{Info}\fi | |
107 | \ifx\putwordInstanceVariableof\undefined \gdef\putwordInstanceVariableof{Instance Variable of}\fi | |
108 | \ifx\putwordMethodon\undefined \gdef\putwordMethodon{Method on}\fi | |
109 | \ifx\putwordNoTitle\undefined \gdef\putwordNoTitle{No Title}\fi | |
110 | \ifx\putwordof\undefined \gdef\putwordof{of}\fi | |
111 | \ifx\putwordon\undefined \gdef\putwordon{on}\fi | |
112 | \ifx\putwordpage\undefined \gdef\putwordpage{page}\fi | |
113 | \ifx\putwordsection\undefined \gdef\putwordsection{section}\fi | |
114 | \ifx\putwordSection\undefined \gdef\putwordSection{Section}\fi | |
115 | \ifx\putwordsee\undefined \gdef\putwordsee{see}\fi | |
116 | \ifx\putwordSee\undefined \gdef\putwordSee{See}\fi | |
117 | \ifx\putwordShortTOC\undefined \gdef\putwordShortTOC{Short Contents}\fi | |
118 | \ifx\putwordTOC\undefined \gdef\putwordTOC{Table of Contents}\fi | |
119 | % | |
120 | \ifx\putwordMJan\undefined \gdef\putwordMJan{January}\fi | |
121 | \ifx\putwordMFeb\undefined \gdef\putwordMFeb{February}\fi | |
122 | \ifx\putwordMMar\undefined \gdef\putwordMMar{March}\fi | |
123 | \ifx\putwordMApr\undefined \gdef\putwordMApr{April}\fi | |
124 | \ifx\putwordMMay\undefined \gdef\putwordMMay{May}\fi | |
125 | \ifx\putwordMJun\undefined \gdef\putwordMJun{June}\fi | |
126 | \ifx\putwordMJul\undefined \gdef\putwordMJul{July}\fi | |
127 | \ifx\putwordMAug\undefined \gdef\putwordMAug{August}\fi | |
128 | \ifx\putwordMSep\undefined \gdef\putwordMSep{September}\fi | |
129 | \ifx\putwordMOct\undefined \gdef\putwordMOct{October}\fi | |
130 | \ifx\putwordMNov\undefined \gdef\putwordMNov{November}\fi | |
131 | \ifx\putwordMDec\undefined \gdef\putwordMDec{December}\fi | |
132 | % | |
133 | \ifx\putwordDefmac\undefined \gdef\putwordDefmac{Macro}\fi | |
134 | \ifx\putwordDefspec\undefined \gdef\putwordDefspec{Special Form}\fi | |
135 | \ifx\putwordDefvar\undefined \gdef\putwordDefvar{Variable}\fi | |
136 | \ifx\putwordDefopt\undefined \gdef\putwordDefopt{User Option}\fi | |
137 | \ifx\putwordDeftypevar\undefined\gdef\putwordDeftypevar{Variable}\fi | |
138 | \ifx\putwordDeffunc\undefined \gdef\putwordDeffunc{Function}\fi | |
139 | \ifx\putwordDeftypefun\undefined\gdef\putwordDeftypefun{Function}\fi | |
ff35fedc ILT |
140 | |
141 | % Ignore a token. | |
142 | % | |
143 | \def\gobble#1{} | |
144 | ||
145 | \hyphenation{ap-pen-dix} | |
146 | \hyphenation{mini-buf-fer mini-buf-fers} | |
147 | \hyphenation{eshell} | |
148 | \hyphenation{white-space} | |
149 | ||
150 | % Margin to add to right of even pages, to left of odd pages. | |
151 | \newdimen \bindingoffset | |
152 | \newdimen \normaloffset | |
153 | \newdimen\pagewidth \newdimen\pageheight | |
154 | ||
155 | % Sometimes it is convenient to have everything in the transcript file | |
156 | % and nothing on the terminal. We don't just call \tracingall here, | |
157 | % since that produces some useless output on the terminal. | |
158 | % | |
159 | \def\gloggingall{\begingroup \globaldefs = 1 \loggingall \endgroup}% | |
160 | \ifx\eTeXversion\undefined | |
161 | \def\loggingall{\tracingcommands2 \tracingstats2 | |
162 | \tracingpages1 \tracingoutput1 \tracinglostchars1 | |
163 | \tracingmacros2 \tracingparagraphs1 \tracingrestores1 | |
164 | \showboxbreadth\maxdimen\showboxdepth\maxdimen | |
165 | }% | |
166 | \else | |
167 | \def\loggingall{\tracingcommands3 \tracingstats2 | |
168 | \tracingpages1 \tracingoutput1 \tracinglostchars1 | |
169 | \tracingmacros2 \tracingparagraphs1 \tracingrestores1 | |
170 | \tracingscantokens1 \tracingassigns1 \tracingifs1 | |
171 | \tracinggroups1 \tracingnesting2 | |
172 | \showboxbreadth\maxdimen\showboxdepth\maxdimen | |
173 | }% | |
174 | \fi | |
175 | ||
bd48e1a9 AC |
176 | % add check for \lastpenalty to plain's definitions. If the last thing |
177 | % we did was a \nobreak, we don't want to insert more space. | |
178 | % | |
179 | \def\smallbreak{\ifnum\lastpenalty<10000\par\ifdim\lastskip<\smallskipamount | |
180 | \removelastskip\penalty-50\smallskip\fi\fi} | |
181 | \def\medbreak{\ifnum\lastpenalty<10000\par\ifdim\lastskip<\medskipamount | |
182 | \removelastskip\penalty-100\medskip\fi\fi} | |
183 | \def\bigbreak{\ifnum\lastpenalty<10000\par\ifdim\lastskip<\bigskipamount | |
184 | \removelastskip\penalty-200\bigskip\fi\fi} | |
185 | ||
ff35fedc ILT |
186 | % For @cropmarks command. |
187 | % Do @cropmarks to get crop marks. | |
449f3b6c | 188 | % |
ff35fedc ILT |
189 | \newif\ifcropmarks |
190 | \let\cropmarks = \cropmarkstrue | |
191 | % | |
192 | % Dimensions to add cropmarks at corners. | |
193 | % Added by P. A. MacKay, 12 Nov. 1986 | |
194 | % | |
195 | \newdimen\outerhsize \newdimen\outervsize % set by the paper size routines | |
196 | \newdimen\cornerlong \cornerlong=1pc | |
197 | \newdimen\cornerthick \cornerthick=.3pt | |
198 | \newdimen\topandbottommargin \topandbottommargin=.75in | |
199 | ||
200 | % Main output routine. | |
201 | \chardef\PAGE = 255 | |
202 | \output = {\onepageout{\pagecontents\PAGE}} | |
203 | ||
204 | \newbox\headlinebox | |
205 | \newbox\footlinebox | |
206 | ||
207 | % \onepageout takes a vbox as an argument. Note that \pagecontents | |
208 | % does insertions, but you have to call it yourself. | |
209 | \def\onepageout#1{% | |
210 | \ifcropmarks \hoffset=0pt \else \hoffset=\normaloffset \fi | |
211 | % | |
212 | \ifodd\pageno \advance\hoffset by \bindingoffset | |
213 | \else \advance\hoffset by -\bindingoffset\fi | |
214 | % | |
215 | % Do this outside of the \shipout so @code etc. will be expanded in | |
216 | % the headline as they should be, not taken literally (outputting ''code). | |
217 | \setbox\headlinebox = \vbox{\let\hsize=\pagewidth \makeheadline}% | |
218 | \setbox\footlinebox = \vbox{\let\hsize=\pagewidth \makefootline}% | |
219 | % | |
220 | {% | |
221 | % Have to do this stuff outside the \shipout because we want it to | |
222 | % take effect in \write's, yet the group defined by the \vbox ends | |
223 | % before the \shipout runs. | |
224 | % | |
225 | \escapechar = `\\ % use backslash in output files. | |
226 | \indexdummies % don't expand commands in the output. | |
227 | \normalturnoffactive % \ in index entries must not stay \, e.g., if | |
228 | % the page break happens to be in the middle of an example. | |
229 | \shipout\vbox{% | |
ec9914b0 AC |
230 | % Do this early so pdf references go to the beginning of the page. |
231 | \ifpdfmakepagedest \pdfmkdest{\the\pageno} \fi | |
232 | % | |
ff35fedc ILT |
233 | \ifcropmarks \vbox to \outervsize\bgroup |
234 | \hsize = \outerhsize | |
449f3b6c AC |
235 | \vskip-\topandbottommargin |
236 | \vtop to0pt{% | |
237 | \line{\ewtop\hfil\ewtop}% | |
238 | \nointerlineskip | |
239 | \line{% | |
240 | \vbox{\moveleft\cornerthick\nstop}% | |
241 | \hfill | |
242 | \vbox{\moveright\cornerthick\nstop}% | |
243 | }% | |
244 | \vss}% | |
ff35fedc ILT |
245 | \vskip\topandbottommargin |
246 | \line\bgroup | |
247 | \hfil % center the page within the outer (page) hsize. | |
248 | \ifodd\pageno\hskip\bindingoffset\fi | |
249 | \vbox\bgroup | |
250 | \fi | |
251 | % | |
252 | \unvbox\headlinebox | |
253 | \pagebody{#1}% | |
254 | \ifdim\ht\footlinebox > 0pt | |
255 | % Only leave this space if the footline is nonempty. | |
256 | % (We lessened \vsize for it in \oddfootingxxx.) | |
257 | % The \baselineskip=24pt in plain's \makefootline has no effect. | |
258 | \vskip 2\baselineskip | |
259 | \unvbox\footlinebox | |
260 | \fi | |
261 | % | |
262 | \ifcropmarks | |
263 | \egroup % end of \vbox\bgroup | |
264 | \hfil\egroup % end of (centering) \line\bgroup | |
265 | \vskip\topandbottommargin plus1fill minus1fill | |
266 | \boxmaxdepth = \cornerthick | |
449f3b6c AC |
267 | \vbox to0pt{\vss |
268 | \line{% | |
269 | \vbox{\moveleft\cornerthick\nsbot}% | |
270 | \hfill | |
271 | \vbox{\moveright\cornerthick\nsbot}% | |
272 | }% | |
273 | \nointerlineskip | |
274 | \line{\ewbot\hfil\ewbot}% | |
ff35fedc | 275 | }% |
ff35fedc ILT |
276 | \egroup % \vbox from first cropmarks clause |
277 | \fi | |
278 | }% end of \shipout\vbox | |
279 | }% end of group with \turnoffactive | |
280 | \advancepageno | |
281 | \ifnum\outputpenalty>-20000 \else\dosupereject\fi | |
282 | } | |
283 | ||
284 | \newinsert\margin \dimen\margin=\maxdimen | |
285 | ||
286 | \def\pagebody#1{\vbox to\pageheight{\boxmaxdepth=\maxdepth #1}} | |
287 | {\catcode`\@ =11 | |
288 | \gdef\pagecontents#1{\ifvoid\topins\else\unvbox\topins\fi | |
289 | % marginal hacks, juha@viisa.uucp (Juha Takala) | |
290 | \ifvoid\margin\else % marginal info is present | |
291 | \rlap{\kern\hsize\vbox to\z@{\kern1pt\box\margin \vss}}\fi | |
292 | \dimen@=\dp#1 \unvbox#1 | |
293 | \ifvoid\footins\else\vskip\skip\footins\footnoterule \unvbox\footins\fi | |
294 | \ifr@ggedbottom \kern-\dimen@ \vfil \fi} | |
295 | } | |
296 | ||
297 | % Here are the rules for the cropmarks. Note that they are | |
298 | % offset so that the space between them is truly \outerhsize or \outervsize | |
299 | % (P. A. MacKay, 12 November, 1986) | |
300 | % | |
301 | \def\ewtop{\vrule height\cornerthick depth0pt width\cornerlong} | |
302 | \def\nstop{\vbox | |
303 | {\hrule height\cornerthick depth\cornerlong width\cornerthick}} | |
304 | \def\ewbot{\vrule height0pt depth\cornerthick width\cornerlong} | |
305 | \def\nsbot{\vbox | |
306 | {\hrule height\cornerlong depth\cornerthick width\cornerthick}} | |
307 | ||
308 | % Parse an argument, then pass it to #1. The argument is the rest of | |
309 | % the input line (except we remove a trailing comment). #1 should be a | |
310 | % macro which expects an ordinary undelimited TeX argument. | |
311 | % | |
312 | \def\parsearg#1{% | |
313 | \let\next = #1% | |
314 | \begingroup | |
315 | \obeylines | |
316 | \futurelet\temp\parseargx | |
317 | } | |
318 | ||
319 | % If the next token is an obeyed space (from an @example environment or | |
320 | % the like), remove it and recurse. Otherwise, we're done. | |
321 | \def\parseargx{% | |
322 | % \obeyedspace is defined far below, after the definition of \sepspaces. | |
323 | \ifx\obeyedspace\temp | |
324 | \expandafter\parseargdiscardspace | |
325 | \else | |
326 | \expandafter\parseargline | |
327 | \fi | |
328 | } | |
329 | ||
330 | % Remove a single space (as the delimiter token to the macro call). | |
331 | {\obeyspaces % | |
332 | \gdef\parseargdiscardspace {\futurelet\temp\parseargx}} | |
333 | ||
334 | {\obeylines % | |
335 | \gdef\parseargline#1^^M{% | |
336 | \endgroup % End of the group started in \parsearg. | |
337 | % | |
338 | % First remove any @c comment, then any @comment. | |
339 | % Result of each macro is put in \toks0. | |
340 | \argremovec #1\c\relax % | |
341 | \expandafter\argremovecomment \the\toks0 \comment\relax % | |
342 | % | |
343 | % Call the caller's macro, saved as \next in \parsearg. | |
344 | \expandafter\next\expandafter{\the\toks0}% | |
345 | }% | |
346 | } | |
347 | ||
348 | % Since all \c{,omment} does is throw away the argument, we can let TeX | |
349 | % do that for us. The \relax here is matched by the \relax in the call | |
350 | % in \parseargline; it could be more or less anything, its purpose is | |
351 | % just to delimit the argument to the \c. | |
352 | \def\argremovec#1\c#2\relax{\toks0 = {#1}} | |
353 | \def\argremovecomment#1\comment#2\relax{\toks0 = {#1}} | |
354 | ||
355 | % \argremovec{,omment} might leave us with trailing spaces, though; e.g., | |
356 | % @end itemize @c foo | |
357 | % will have two active spaces as part of the argument with the | |
358 | % `itemize'. Here we remove all active spaces from #1, and assign the | |
359 | % result to \toks0. | |
360 | % | |
361 | % This loses if there are any *other* active characters besides spaces | |
362 | % in the argument -- _ ^ +, for example -- since they get expanded. | |
363 | % Fortunately, Texinfo does not define any such commands. (If it ever | |
364 | % does, the catcode of the characters in questionwill have to be changed | |
365 | % here.) But this means we cannot call \removeactivespaces as part of | |
366 | % \argremovec{,omment}, since @c uses \parsearg, and thus the argument | |
367 | % that \parsearg gets might well have any character at all in it. | |
368 | % | |
369 | \def\removeactivespaces#1{% | |
370 | \begingroup | |
371 | \ignoreactivespaces | |
372 | \edef\temp{#1}% | |
373 | \global\toks0 = \expandafter{\temp}% | |
374 | \endgroup | |
375 | } | |
376 | ||
377 | % Change the active space to expand to nothing. | |
378 | % | |
379 | \begingroup | |
380 | \obeyspaces | |
381 | \gdef\ignoreactivespaces{\obeyspaces\let =\empty} | |
382 | \endgroup | |
383 | ||
384 | ||
385 | \def\flushcr{\ifx\par\lisppar \def\next##1{}\else \let\next=\relax \fi \next} | |
386 | ||
387 | %% These are used to keep @begin/@end levels from running away | |
388 | %% Call \inENV within environments (after a \begingroup) | |
389 | \newif\ifENV \ENVfalse \def\inENV{\ifENV\relax\else\ENVtrue\fi} | |
390 | \def\ENVcheck{% | |
391 | \ifENV\errmessage{Still within an environment; press RETURN to continue} | |
392 | \endgroup\fi} % This is not perfect, but it should reduce lossage | |
393 | ||
394 | % @begin foo is the same as @foo, for now. | |
395 | \newhelp\EMsimple{Press RETURN to continue.} | |
396 | ||
397 | \outer\def\begin{\parsearg\beginxxx} | |
398 | ||
399 | \def\beginxxx #1{% | |
400 | \expandafter\ifx\csname #1\endcsname\relax | |
401 | {\errhelp=\EMsimple \errmessage{Undefined command @begin #1}}\else | |
402 | \csname #1\endcsname\fi} | |
403 | ||
404 | % @end foo executes the definition of \Efoo. | |
405 | % | |
406 | \def\end{\parsearg\endxxx} | |
407 | \def\endxxx #1{% | |
408 | \removeactivespaces{#1}% | |
409 | \edef\endthing{\the\toks0}% | |
410 | % | |
411 | \expandafter\ifx\csname E\endthing\endcsname\relax | |
412 | \expandafter\ifx\csname \endthing\endcsname\relax | |
413 | % There's no \foo, i.e., no ``environment'' foo. | |
414 | \errhelp = \EMsimple | |
415 | \errmessage{Undefined command `@end \endthing'}% | |
416 | \else | |
417 | \unmatchedenderror\endthing | |
418 | \fi | |
419 | \else | |
420 | % Everything's ok; the right environment has been started. | |
421 | \csname E\endthing\endcsname | |
422 | \fi | |
423 | } | |
424 | ||
425 | % There is an environment #1, but it hasn't been started. Give an error. | |
426 | % | |
427 | \def\unmatchedenderror#1{% | |
428 | \errhelp = \EMsimple | |
429 | \errmessage{This `@end #1' doesn't have a matching `@#1'}% | |
430 | } | |
431 | ||
432 | % Define the control sequence \E#1 to give an unmatched @end error. | |
433 | % | |
434 | \def\defineunmatchedend#1{% | |
435 | \expandafter\def\csname E#1\endcsname{\unmatchedenderror{#1}}% | |
436 | } | |
437 | ||
438 | ||
439 | % Single-spacing is done by various environments (specifically, in | |
440 | % \nonfillstart and \quotations). | |
441 | \newskip\singlespaceskip \singlespaceskip = 12.5pt | |
442 | \def\singlespace{% | |
443 | % Why was this kern here? It messes up equalizing space above and below | |
444 | % environments. --karl, 6may93 | |
445 | %{\advance \baselineskip by -\singlespaceskip | |
446 | %\kern \baselineskip}% | |
bd48e1a9 | 447 | \setleading\singlespaceskip |
ff35fedc ILT |
448 | } |
449 | ||
450 | %% Simple single-character @ commands | |
451 | ||
452 | % @@ prints an @ | |
453 | % Kludge this until the fonts are right (grr). | |
454 | \def\@{{\tt\char64}} | |
455 | ||
456 | % This is turned off because it was never documented | |
457 | % and you can use @w{...} around a quote to suppress ligatures. | |
458 | %% Define @` and @' to be the same as ` and ' | |
459 | %% but suppressing ligatures. | |
460 | %\def\`{{`}} | |
461 | %\def\'{{'}} | |
462 | ||
463 | % Used to generate quoted braces. | |
464 | \def\mylbrace {{\tt\char123}} | |
465 | \def\myrbrace {{\tt\char125}} | |
466 | \let\{=\mylbrace | |
467 | \let\}=\myrbrace | |
468 | \begingroup | |
469 | % Definitions to produce actual \{ & \} command in an index. | |
470 | \catcode`\{ = 12 \catcode`\} = 12 | |
471 | \catcode`\[ = 1 \catcode`\] = 2 | |
472 | \catcode`\@ = 0 \catcode`\\ = 12 | |
473 | @gdef@lbracecmd[\{]% | |
474 | @gdef@rbracecmd[\}]% | |
475 | @endgroup | |
476 | ||
477 | % Accents: @, @dotaccent @ringaccent @ubaraccent @udotaccent | |
478 | % Others are defined by plain TeX: @` @' @" @^ @~ @= @v @H. | |
479 | \let\, = \c | |
480 | \let\dotaccent = \. | |
481 | \def\ringaccent#1{{\accent23 #1}} | |
482 | \let\tieaccent = \t | |
483 | \let\ubaraccent = \b | |
484 | \let\udotaccent = \d | |
485 | ||
486 | % Other special characters: @questiondown @exclamdown | |
487 | % Plain TeX defines: @AA @AE @O @OE @L (and lowercase versions) @ss. | |
488 | \def\questiondown{?`} | |
489 | \def\exclamdown{!`} | |
490 | ||
491 | % Dotless i and dotless j, used for accents. | |
492 | \def\imacro{i} | |
493 | \def\jmacro{j} | |
494 | \def\dotless#1{% | |
495 | \def\temp{#1}% | |
496 | \ifx\temp\imacro \ptexi | |
497 | \else\ifx\temp\jmacro \j | |
498 | \else \errmessage{@dotless can be used only with i or j}% | |
499 | \fi\fi | |
500 | } | |
501 | ||
502 | % Be sure we're in horizontal mode when doing a tie, since we make space | |
503 | % equivalent to this in @example-like environments. Otherwise, a space | |
504 | % at the beginning of a line will start with \penalty -- and | |
505 | % since \penalty is valid in vertical mode, we'd end up putting the | |
506 | % penalty on the vertical list instead of in the new paragraph. | |
507 | {\catcode`@ = 11 | |
508 | % Avoid using \@M directly, because that causes trouble | |
509 | % if the definition is written into an index file. | |
510 | \global\let\tiepenalty = \@M | |
511 | \gdef\tie{\leavevmode\penalty\tiepenalty\ } | |
512 | } | |
513 | ||
514 | % @: forces normal size whitespace following. | |
515 | \def\:{\spacefactor=1000 } | |
516 | ||
517 | % @* forces a line break. | |
518 | \def\*{\hfil\break\hbox{}\ignorespaces} | |
519 | ||
520 | % @. is an end-of-sentence period. | |
521 | \def\.{.\spacefactor=3000 } | |
522 | ||
523 | % @! is an end-of-sentence bang. | |
524 | \def\!{!\spacefactor=3000 } | |
525 | ||
526 | % @? is an end-of-sentence query. | |
527 | \def\?{?\spacefactor=3000 } | |
528 | ||
529 | % @w prevents a word break. Without the \leavevmode, @w at the | |
530 | % beginning of a paragraph, when TeX is still in vertical mode, would | |
531 | % produce a whole line of output instead of starting the paragraph. | |
532 | \def\w#1{\leavevmode\hbox{#1}} | |
533 | ||
534 | % @group ... @end group forces ... to be all on one page, by enclosing | |
535 | % it in a TeX vbox. We use \vtop instead of \vbox to construct the box | |
536 | % to keep its height that of a normal line. According to the rules for | |
537 | % \topskip (p.114 of the TeXbook), the glue inserted is | |
538 | % max (\topskip - \ht (first item), 0). If that height is large, | |
539 | % therefore, no glue is inserted, and the space between the headline and | |
540 | % the text is small, which looks bad. | |
541 | % | |
542 | \def\group{\begingroup | |
543 | \ifnum\catcode13=\active \else | |
544 | \errhelp = \groupinvalidhelp | |
545 | \errmessage{@group invalid in context where filling is enabled}% | |
546 | \fi | |
547 | % | |
548 | % The \vtop we start below produces a box with normal height and large | |
549 | % depth; thus, TeX puts \baselineskip glue before it, and (when the | |
550 | % next line of text is done) \lineskip glue after it. (See p.82 of | |
551 | % the TeXbook.) Thus, space below is not quite equal to space | |
552 | % above. But it's pretty close. | |
553 | \def\Egroup{% | |
554 | \egroup % End the \vtop. | |
555 | \endgroup % End the \group. | |
556 | }% | |
557 | % | |
558 | \vtop\bgroup | |
559 | % We have to put a strut on the last line in case the @group is in | |
560 | % the midst of an example, rather than completely enclosing it. | |
561 | % Otherwise, the interline space between the last line of the group | |
562 | % and the first line afterwards is too small. But we can't put the | |
563 | % strut in \Egroup, since there it would be on a line by itself. | |
564 | % Hence this just inserts a strut at the beginning of each line. | |
565 | \everypar = {\strut}% | |
566 | % | |
567 | % Since we have a strut on every line, we don't need any of TeX's | |
568 | % normal interline spacing. | |
569 | \offinterlineskip | |
570 | % | |
571 | % OK, but now we have to do something about blank | |
572 | % lines in the input in @example-like environments, which normally | |
573 | % just turn into \lisppar, which will insert no space now that we've | |
574 | % turned off the interline space. Simplest is to make them be an | |
575 | % empty paragraph. | |
576 | \ifx\par\lisppar | |
577 | \edef\par{\leavevmode \par}% | |
578 | % | |
579 | % Reset ^^M's definition to new definition of \par. | |
580 | \obeylines | |
581 | \fi | |
582 | % | |
583 | % Do @comment since we are called inside an environment such as | |
584 | % @example, where each end-of-line in the input causes an | |
585 | % end-of-line in the output. We don't want the end-of-line after | |
586 | % the `@group' to put extra space in the output. Since @group | |
587 | % should appear on a line by itself (according to the Texinfo | |
588 | % manual), we don't worry about eating any user text. | |
589 | \comment | |
590 | } | |
591 | % | |
592 | % TeX puts in an \escapechar (i.e., `@') at the beginning of the help | |
593 | % message, so this ends up printing `@group can only ...'. | |
594 | % | |
595 | \newhelp\groupinvalidhelp{% | |
596 | group can only be used in environments such as @example,^^J% | |
597 | where each line of input produces a line of output.} | |
598 | ||
599 | % @need space-in-mils | |
600 | % forces a page break if there is not space-in-mils remaining. | |
601 | ||
602 | \newdimen\mil \mil=0.001in | |
603 | ||
604 | \def\need{\parsearg\needx} | |
605 | ||
606 | % Old definition--didn't work. | |
607 | %\def\needx #1{\par % | |
608 | %% This method tries to make TeX break the page naturally | |
609 | %% if the depth of the box does not fit. | |
610 | %{\baselineskip=0pt% | |
611 | %\vtop to #1\mil{\vfil}\kern -#1\mil\nobreak | |
612 | %\prevdepth=-1000pt | |
613 | %}} | |
614 | ||
615 | \def\needx#1{% | |
449f3b6c | 616 | % Ensure vertical mode, so we don't make a big box in the middle of a |
ff35fedc ILT |
617 | % paragraph. |
618 | \par | |
619 | % | |
449f3b6c AC |
620 | % If the @need value is less than one line space, it's useless. |
621 | \dimen0 = #1\mil | |
622 | \dimen2 = \ht\strutbox | |
623 | \advance\dimen2 by \dp\strutbox | |
624 | \ifdim\dimen0 > \dimen2 | |
625 | % | |
626 | % Do a \strut just to make the height of this box be normal, so the | |
627 | % normal leading is inserted relative to the preceding line. | |
628 | % And a page break here is fine. | |
629 | \vtop to #1\mil{\strut\vfil}% | |
630 | % | |
631 | % TeX does not even consider page breaks if a penalty added to the | |
632 | % main vertical list is 10000 or more. But in order to see if the | |
633 | % empty box we just added fits on the page, we must make it consider | |
634 | % page breaks. On the other hand, we don't want to actually break the | |
635 | % page after the empty box. So we use a penalty of 9999. | |
636 | % | |
637 | % There is an extremely small chance that TeX will actually break the | |
638 | % page at this \penalty, if there are no other feasible breakpoints in | |
639 | % sight. (If the user is using lots of big @group commands, which | |
640 | % almost-but-not-quite fill up a page, TeX will have a hard time doing | |
641 | % good page breaking, for example.) However, I could not construct an | |
642 | % example where a page broke at this \penalty; if it happens in a real | |
643 | % document, then we can reconsider our strategy. | |
644 | \penalty9999 | |
645 | % | |
646 | % Back up by the size of the box, whether we did a page break or not. | |
647 | \kern -#1\mil | |
648 | % | |
649 | % Do not allow a page break right after this kern. | |
650 | \nobreak | |
651 | \fi | |
ff35fedc ILT |
652 | } |
653 | ||
654 | % @br forces paragraph break | |
655 | ||
656 | \let\br = \par | |
657 | ||
658 | % @dots{} output an ellipsis using the current font. | |
659 | % We do .5em per period so that it has the same spacing in a typewriter | |
660 | % font as three actual period characters. | |
661 | % | |
662 | \def\dots{% | |
663 | \leavevmode | |
664 | \hbox to 1.5em{% | |
665 | \hskip 0pt plus 0.25fil minus 0.25fil | |
666 | .\hss.\hss.% | |
667 | \hskip 0pt plus 0.5fil minus 0.5fil | |
668 | }% | |
669 | } | |
670 | ||
671 | % @enddots{} is an end-of-sentence ellipsis. | |
449f3b6c | 672 | % |
ff35fedc ILT |
673 | \def\enddots{% |
674 | \leavevmode | |
675 | \hbox to 2em{% | |
676 | \hskip 0pt plus 0.25fil minus 0.25fil | |
677 | .\hss.\hss.\hss.% | |
678 | \hskip 0pt plus 0.5fil minus 0.5fil | |
679 | }% | |
680 | \spacefactor=3000 | |
681 | } | |
682 | ||
683 | ||
684 | % @page forces the start of a new page | |
685 | % | |
686 | \def\page{\par\vfill\supereject} | |
687 | ||
688 | % @exdent text.... | |
689 | % outputs text on separate line in roman font, starting at standard page margin | |
690 | ||
691 | % This records the amount of indent in the innermost environment. | |
692 | % That's how much \exdent should take out. | |
693 | \newskip\exdentamount | |
694 | ||
695 | % This defn is used inside fill environments such as @defun. | |
696 | \def\exdent{\parsearg\exdentyyy} | |
697 | \def\exdentyyy #1{{\hfil\break\hbox{\kern -\exdentamount{\rm#1}}\hfil\break}} | |
698 | ||
699 | % This defn is used inside nofill environments such as @example. | |
700 | \def\nofillexdent{\parsearg\nofillexdentyyy} | |
701 | \def\nofillexdentyyy #1{{\advance \leftskip by -\exdentamount | |
702 | \leftline{\hskip\leftskip{\rm#1}}}} | |
703 | ||
bd48e1a9 AC |
704 | % @inmargin{WHICH}{TEXT} puts TEXT in the WHICH margin next to the current |
705 | % paragraph. For more general purposes, use the \margin insertion | |
706 | % class. WHICH is `l' or `r'. | |
707 | % | |
ff35fedc ILT |
708 | \newskip\inmarginspacing \inmarginspacing=1cm |
709 | \def\strutdepth{\dp\strutbox} | |
bd48e1a9 AC |
710 | % |
711 | \def\doinmargin#1#2{\strut\vadjust{% | |
712 | \nobreak | |
713 | \kern-\strutdepth | |
714 | \vtop to \strutdepth{% | |
715 | \baselineskip=\strutdepth | |
716 | \vss | |
717 | % if you have multiple lines of stuff to put here, you'll need to | |
718 | % make the vbox yourself of the appropriate size. | |
719 | \ifx#1l% | |
720 | \llap{\ignorespaces #2\hskip\inmarginspacing}% | |
721 | \else | |
722 | \rlap{\hskip\hsize \hskip\inmarginspacing \ignorespaces #2}% | |
723 | \fi | |
724 | \null | |
725 | }% | |
726 | }} | |
727 | \def\inleftmargin{\doinmargin l} | |
728 | \def\inrightmargin{\doinmargin r} | |
729 | % | |
730 | % @inmargin{TEXT [, RIGHT-TEXT]} | |
731 | % (if RIGHT-TEXT is given, use TEXT for left page, RIGHT-TEXT for right; | |
732 | % else use TEXT for both). | |
733 | % | |
734 | \def\inmargin#1{\parseinmargin #1,,\finish} | |
735 | \def\parseinmargin#1,#2,#3\finish{% not perfect, but better than nothing. | |
736 | \setbox0 = \hbox{\ignorespaces #2}% | |
737 | \ifdim\wd0 > 0pt | |
738 | \def\lefttext{#1}% have both texts | |
739 | \def\righttext{#2}% | |
740 | \else | |
741 | \def\lefttext{#1}% have only one text | |
742 | \def\righttext{#1}% | |
743 | \fi | |
744 | % | |
745 | \ifodd\pageno | |
746 | \def\temp{\inrightmargin\righttext}% odd page -> outside is right margin | |
747 | \else | |
748 | \def\temp{\inleftmargin\lefttext}% | |
749 | \fi | |
750 | \temp | |
751 | } | |
ff35fedc ILT |
752 | |
753 | % @include file insert text of that file as input. | |
754 | % Allow normal characters that we make active in the argument (a file name). | |
755 | \def\include{\begingroup | |
756 | \catcode`\\=12 | |
757 | \catcode`~=12 | |
758 | \catcode`^=12 | |
759 | \catcode`_=12 | |
760 | \catcode`|=12 | |
761 | \catcode`<=12 | |
762 | \catcode`>=12 | |
763 | \catcode`+=12 | |
764 | \parsearg\includezzz} | |
765 | % Restore active chars for included file. | |
766 | \def\includezzz#1{\endgroup\begingroup | |
767 | % Read the included file in a group so nested @include's work. | |
768 | \def\thisfile{#1}% | |
769 | \input\thisfile | |
770 | \endgroup} | |
771 | ||
772 | \def\thisfile{} | |
773 | ||
774 | % @center line outputs that line, centered | |
775 | ||
776 | \def\center{\parsearg\centerzzz} | |
777 | \def\centerzzz #1{{\advance\hsize by -\leftskip | |
778 | \advance\hsize by -\rightskip | |
779 | \centerline{#1}}} | |
780 | ||
781 | % @sp n outputs n lines of vertical space | |
782 | ||
783 | \def\sp{\parsearg\spxxx} | |
784 | \def\spxxx #1{\vskip #1\baselineskip} | |
785 | ||
786 | % @comment ...line which is ignored... | |
787 | % @c is the same as @comment | |
788 | % @ignore ... @end ignore is another way to write a comment | |
789 | ||
790 | \def\comment{\begingroup \catcode`\^^M=\other% | |
791 | \catcode`\@=\other \catcode`\{=\other \catcode`\}=\other% | |
792 | \commentxxx} | |
793 | {\catcode`\^^M=\other \gdef\commentxxx#1^^M{\endgroup}} | |
794 | ||
795 | \let\c=\comment | |
796 | ||
449f3b6c AC |
797 | % @paragraphindent NCHARS |
798 | % We'll use ems for NCHARS, close enough. | |
799 | % We cannot implement @paragraphindent asis, though. | |
800 | % | |
801 | \def\asisword{asis} % no translation, these are keywords | |
802 | \def\noneword{none} | |
803 | % | |
804 | \def\paragraphindent{\parsearg\doparagraphindent} | |
805 | \def\doparagraphindent#1{% | |
806 | \def\temp{#1}% | |
807 | \ifx\temp\asisword | |
808 | \else | |
809 | \ifx\temp\noneword | |
810 | \defaultparindent = 0pt | |
811 | \else | |
812 | \defaultparindent = #1em | |
813 | \fi | |
814 | \fi | |
815 | \parindent = \defaultparindent | |
ff35fedc ILT |
816 | } |
817 | ||
449f3b6c AC |
818 | % @exampleindent NCHARS |
819 | % We'll use ems for NCHARS like @paragraphindent. | |
820 | % It seems @exampleindent asis isn't necessary, but | |
821 | % I preserve it to make it similar to @paragraphindent. | |
822 | \def\exampleindent{\parsearg\doexampleindent} | |
823 | \def\doexampleindent#1{% | |
824 | \def\temp{#1}% | |
825 | \ifx\temp\asisword | |
826 | \else | |
827 | \ifx\temp\noneword | |
828 | \lispnarrowing = 0pt | |
829 | \else | |
830 | \lispnarrowing = #1em | |
831 | \fi | |
832 | \fi | |
ff35fedc ILT |
833 | } |
834 | ||
449f3b6c | 835 | % @asis just yields its argument. Used with @table, for example. |
ff35fedc | 836 | % |
449f3b6c | 837 | \def\asis#1{#1} |
ff35fedc | 838 | |
bd48e1a9 AC |
839 | % @math outputs its argument in math mode. |
840 | % We don't use $'s directly in the definition of \math because we need | |
841 | % to set catcodes according to plain TeX first, to allow for subscripts, | |
842 | % superscripts, special math chars, etc. | |
843 | % | |
844 | % @math does not do math typesetting in section titles, index | |
845 | % entries, and other such contexts where the catcodes are set before | |
846 | % @math gets a chance to work. This could perhaps be fixed, but for now | |
847 | % at least we can have real math in the main text, where it's needed most. | |
449f3b6c | 848 | % |
bd48e1a9 | 849 | % |
449f3b6c | 850 | \let\implicitmath = $ |
bd48e1a9 AC |
851 | % |
852 | % One complication: _ usually means subscripts, but it could also mean | |
853 | % an actual _ character, as in @math{@var{some_variable} + 1}. So make | |
854 | % _ within @math be active (mathcode "8000), and distinguish by seeing | |
855 | % if the current family is \slfam, which is what @var uses. | |
856 | % | |
857 | {\catcode95 = \active % 95 = _ | |
858 | \gdef\mathunderscore{% | |
859 | \catcode95=\active | |
860 | \def_{\ifnum\fam=\slfam\_\else\sb\fi}% | |
861 | }} | |
862 | % | |
863 | \def\math{\tex\mathcode`\_="8000\mathunderscore \implicitmath\finishmath} | |
864 | \def\finishmath#1{#1\implicitmath\Etex} | |
ff35fedc | 865 | |
449f3b6c AC |
866 | % @bullet and @minus need the same treatment as @math, just above. |
867 | \def\bullet{\implicitmath\ptexbullet\implicitmath} | |
868 | \def\minus{\implicitmath-\implicitmath} | |
ff35fedc | 869 | |
449f3b6c AC |
870 | % @refill is a no-op. |
871 | \let\refill=\relax | |
872 | ||
873 | % If working on a large document in chapters, it is convenient to | |
874 | % be able to disable indexing, cross-referencing, and contents, for test runs. | |
875 | % This is done with @novalidate (before @setfilename). | |
ff35fedc | 876 | % |
449f3b6c AC |
877 | \newif\iflinks \linkstrue % by default we want the aux files. |
878 | \let\novalidate = \linksfalse | |
879 | ||
880 | % @setfilename is done at the beginning of every texinfo file. | |
881 | % So open here the files we need to have open while reading the input. | |
882 | % This makes it possible to make a .fmt file for texinfo. | |
883 | \def\setfilename{% | |
884 | \iflinks | |
885 | \readauxfile | |
886 | \fi % \openindices needs to do some work in any case. | |
887 | \openindices | |
888 | \fixbackslash % Turn off hack to swallow `\input texinfo'. | |
889 | \global\let\setfilename=\comment % Ignore extra @setfilename cmds. | |
890 | % | |
891 | % If texinfo.cnf is present on the system, read it. | |
892 | % Useful for site-wide @afourpaper, etc. | |
893 | % Just to be on the safe side, close the input stream before the \input. | |
894 | \openin 1 texinfo.cnf | |
895 | \ifeof1 \let\temp=\relax \else \def\temp{\input texinfo.cnf }\fi | |
896 | \closein1 | |
897 | \temp | |
898 | % | |
899 | \comment % Ignore the actual filename. | |
ff35fedc ILT |
900 | } |
901 | ||
449f3b6c | 902 | % Called from \setfilename. |
ff35fedc | 903 | % |
449f3b6c AC |
904 | \def\openindices{% |
905 | \newindex{cp}% | |
906 | \newcodeindex{fn}% | |
907 | \newcodeindex{vr}% | |
908 | \newcodeindex{tp}% | |
909 | \newcodeindex{ky}% | |
910 | \newcodeindex{pg}% | |
911 | } | |
ff35fedc | 912 | |
449f3b6c AC |
913 | % @bye. |
914 | \outer\def\bye{\pagealignmacro\tracingstats=1\ptexend} | |
915 | ||
916 | ||
917 | \message{pdf,} | |
918 | % adobe `portable' document format | |
919 | \newcount\tempnum | |
920 | \newcount\lnkcount | |
921 | \newtoks\filename | |
922 | \newcount\filenamelength | |
923 | \newcount\pgn | |
924 | \newtoks\toksA | |
925 | \newtoks\toksB | |
926 | \newtoks\toksC | |
927 | \newtoks\toksD | |
928 | \newbox\boxA | |
929 | \newcount\countA | |
930 | \newif\ifpdf | |
931 | \newif\ifpdfmakepagedest | |
932 | ||
933 | \ifx\pdfoutput\undefined | |
934 | \pdffalse | |
935 | \let\pdfmkdest = \gobble | |
936 | \let\pdfurl = \gobble | |
937 | \let\endlink = \relax | |
938 | \let\linkcolor = \relax | |
939 | \let\pdfmakeoutlines = \relax | |
940 | \else | |
941 | \pdftrue | |
942 | \pdfoutput = 1 | |
943 | \input pdfcolor | |
944 | \def\dopdfimage#1#2#3{% | |
945 | \def\imagewidth{#2}% | |
946 | \def\imageheight{#3}% | |
bd48e1a9 AC |
947 | % without \immediate, pdftex seg faults when the same image is |
948 | % included twice. (Version 3.14159-pre-1.0-unofficial-20010704.) | |
449f3b6c | 949 | \ifnum\pdftexversion < 14 |
bd48e1a9 | 950 | \immediate\pdfimage |
449f3b6c | 951 | \else |
bd48e1a9 | 952 | \immediate\pdfximage |
ff35fedc | 953 | \fi |
449f3b6c AC |
954 | \ifx\empty\imagewidth\else width \imagewidth \fi |
955 | \ifx\empty\imageheight\else height \imageheight \fi | |
bd48e1a9 AC |
956 | \ifnum\pdftexversion<13 |
957 | #1.pdf% | |
958 | \else | |
959 | {#1.pdf}% | |
960 | \fi | |
449f3b6c AC |
961 | \ifnum\pdftexversion < 14 \else |
962 | \pdfrefximage \pdflastximage | |
963 | \fi} | |
bd48e1a9 AC |
964 | \def\pdfmkdest#1{{\normalturnoffactive \pdfdest name{#1} xyz}} |
965 | \def\pdfmkpgn#1{#1} | |
ec9914b0 | 966 | \let\linkcolor = \Blue % was Cyan, but that seems light? |
449f3b6c AC |
967 | \def\endlink{\Black\pdfendlink} |
968 | % Adding outlines to PDF; macros for calculating structure of outlines | |
969 | % come from Petr Olsak | |
970 | \def\expnumber#1{\expandafter\ifx\csname#1\endcsname\relax 0% | |
971 | \else \csname#1\endcsname \fi} | |
972 | \def\advancenumber#1{\tempnum=\expnumber{#1}\relax | |
973 | \advance\tempnum by1 | |
974 | \expandafter\xdef\csname#1\endcsname{\the\tempnum}} | |
975 | \def\pdfmakeoutlines{{% | |
976 | \openin 1 \jobname.toc | |
bd48e1a9 | 977 | \ifeof 1\else\begingroup |
449f3b6c AC |
978 | \closein 1 |
979 | \indexnofonts | |
980 | \def\tt{} | |
ec9914b0 AC |
981 | \let\_ = \normalunderscore |
982 | % Thanh's hack / proper braces in bookmarks | |
449f3b6c AC |
983 | \edef\mylbrace{\iftrue \string{\else}\fi}\let\{=\mylbrace |
984 | \edef\myrbrace{\iffalse{\else\string}\fi}\let\}=\myrbrace | |
985 | % | |
986 | \def\chapentry ##1##2##3{} | |
bd48e1a9 | 987 | \let\appendixentry = \chapentry |
449f3b6c AC |
988 | \def\unnumbchapentry ##1##2{} |
989 | \def\secentry ##1##2##3##4{\advancenumber{chap##2}} | |
990 | \def\unnumbsecentry ##1##2{} | |
991 | \def\subsecentry ##1##2##3##4##5{\advancenumber{sec##2.##3}} | |
992 | \def\unnumbsubsecentry ##1##2{} | |
993 | \def\subsubsecentry ##1##2##3##4##5##6{\advancenumber{subsec##2.##3.##4}} | |
994 | \def\unnumbsubsubsecentry ##1##2{} | |
995 | \input \jobname.toc | |
996 | \def\chapentry ##1##2##3{% | |
997 | \pdfoutline goto name{\pdfmkpgn{##3}}count-\expnumber{chap##2}{##1}} | |
bd48e1a9 | 998 | \let\appendixentry = \chapentry |
449f3b6c AC |
999 | \def\unnumbchapentry ##1##2{% |
1000 | \pdfoutline goto name{\pdfmkpgn{##2}}{##1}} | |
1001 | \def\secentry ##1##2##3##4{% | |
1002 | \pdfoutline goto name{\pdfmkpgn{##4}}count-\expnumber{sec##2.##3}{##1}} | |
1003 | \def\unnumbsecentry ##1##2{% | |
1004 | \pdfoutline goto name{\pdfmkpgn{##2}}{##1}} | |
1005 | \def\subsecentry ##1##2##3##4##5{% | |
1006 | \pdfoutline goto name{\pdfmkpgn{##5}}count-\expnumber{subsec##2.##3.##4}{##1}} | |
1007 | \def\unnumbsubsecentry ##1##2{% | |
1008 | \pdfoutline goto name{\pdfmkpgn{##2}}{##1}} | |
1009 | \def\subsubsecentry ##1##2##3##4##5##6{% | |
1010 | \pdfoutline goto name{\pdfmkpgn{##6}}{##1}} | |
1011 | \def\unnumbsubsubsecentry ##1##2{% | |
1012 | \pdfoutline goto name{\pdfmkpgn{##2}}{##1}} | |
1013 | \input \jobname.toc | |
bd48e1a9 | 1014 | \endgroup\fi |
449f3b6c AC |
1015 | }} |
1016 | \def\makelinks #1,{% | |
1017 | \def\params{#1}\def\E{END}% | |
1018 | \ifx\params\E | |
1019 | \let\nextmakelinks=\relax | |
1020 | \else | |
1021 | \let\nextmakelinks=\makelinks | |
1022 | \ifnum\lnkcount>0,\fi | |
1023 | \picknum{#1}% | |
1024 | \startlink attr{/Border [0 0 0]} | |
1025 | goto name{\pdfmkpgn{\the\pgn}}% | |
1026 | \linkcolor #1% | |
1027 | \advance\lnkcount by 1% | |
1028 | \endlink | |
1029 | \fi | |
1030 | \nextmakelinks | |
1031 | } | |
1032 | \def\picknum#1{\expandafter\pn#1} | |
1033 | \def\pn#1{% | |
1034 | \def\p{#1}% | |
1035 | \ifx\p\lbrace | |
1036 | \let\nextpn=\ppn | |
1037 | \else | |
1038 | \let\nextpn=\ppnn | |
1039 | \def\first{#1} | |
1040 | \fi | |
1041 | \nextpn | |
1042 | } | |
1043 | \def\ppn#1{\pgn=#1\gobble} | |
1044 | \def\ppnn{\pgn=\first} | |
1045 | \def\pdfmklnk#1{\lnkcount=0\makelinks #1,END,} | |
1046 | \def\addtokens#1#2{\edef\addtoks{\noexpand#1={\the#1#2}}\addtoks} | |
1047 | \def\skipspaces#1{\def\PP{#1}\def\D{|}% | |
1048 | \ifx\PP\D\let\nextsp\relax | |
1049 | \else\let\nextsp\skipspaces | |
1050 | \ifx\p\space\else\addtokens{\filename}{\PP}% | |
1051 | \advance\filenamelength by 1 | |
1052 | \fi | |
1053 | \fi | |
1054 | \nextsp} | |
1055 | \def\getfilename#1{\filenamelength=0\expandafter\skipspaces#1|\relax} | |
1056 | \ifnum\pdftexversion < 14 | |
1057 | \let \startlink \pdfannotlink | |
1058 | \else | |
1059 | \let \startlink \pdfstartlink | |
1060 | \fi | |
1061 | \def\pdfurl#1{% | |
1062 | \begingroup | |
1063 | \normalturnoffactive\def\@{@}% | |
bd48e1a9 | 1064 | \let\value=\expandablevalue |
449f3b6c AC |
1065 | \leavevmode\Red |
1066 | \startlink attr{/Border [0 0 0]}% | |
1067 | user{/Subtype /Link /A << /S /URI /URI (#1) >>}% | |
1068 | % #1 | |
1069 | \endgroup} | |
1070 | \def\pdfgettoks#1.{\setbox\boxA=\hbox{\toksA={#1.}\toksB={}\maketoks}} | |
1071 | \def\addtokens#1#2{\edef\addtoks{\noexpand#1={\the#1#2}}\addtoks} | |
1072 | \def\adn#1{\addtokens{\toksC}{#1}\global\countA=1\let\next=\maketoks} | |
1073 | \def\poptoks#1#2|ENDTOKS|{\let\first=#1\toksD={#1}\toksA={#2}} | |
1074 | \def\maketoks{% | |
1075 | \expandafter\poptoks\the\toksA|ENDTOKS| | |
1076 | \ifx\first0\adn0 | |
1077 | \else\ifx\first1\adn1 \else\ifx\first2\adn2 \else\ifx\first3\adn3 | |
1078 | \else\ifx\first4\adn4 \else\ifx\first5\adn5 \else\ifx\first6\adn6 | |
1079 | \else\ifx\first7\adn7 \else\ifx\first8\adn8 \else\ifx\first9\adn9 | |
1080 | \else | |
1081 | \ifnum0=\countA\else\makelink\fi | |
1082 | \ifx\first.\let\next=\done\else | |
1083 | \let\next=\maketoks | |
1084 | \addtokens{\toksB}{\the\toksD} | |
1085 | \ifx\first,\addtokens{\toksB}{\space}\fi | |
1086 | \fi | |
1087 | \fi\fi\fi\fi\fi\fi\fi\fi\fi\fi | |
1088 | \next} | |
1089 | \def\makelink{\addtokens{\toksB}% | |
1090 | {\noexpand\pdflink{\the\toksC}}\toksC={}\global\countA=0} | |
1091 | \def\pdflink#1{% | |
bd48e1a9 | 1092 | \startlink attr{/Border [0 0 0]} goto name{\pdfmkpgn{#1}} |
449f3b6c | 1093 | \linkcolor #1\endlink} |
449f3b6c AC |
1094 | \def\done{\edef\st{\global\noexpand\toksA={\the\toksB}}\st} |
1095 | \fi % \ifx\pdfoutput | |
ff35fedc ILT |
1096 | |
1097 | ||
1098 | \message{fonts,} | |
1099 | % Font-change commands. | |
1100 | ||
1101 | % Texinfo sort of supports the sans serif font style, which plain TeX does not. | |
1102 | % So we set up a \sf analogous to plain's \rm, etc. | |
1103 | \newfam\sffam | |
1104 | \def\sf{\fam=\sffam \tensf} | |
1105 | \let\li = \sf % Sometimes we call it \li, not \sf. | |
1106 | ||
1107 | % We don't need math for this one. | |
1108 | \def\ttsl{\tenttsl} | |
1109 | ||
bd48e1a9 AC |
1110 | % Default leading. |
1111 | \newdimen\textleading \textleading = 13.2pt | |
1112 | ||
1113 | % Set the baselineskip to #1, and the lineskip and strut size | |
1114 | % correspondingly. There is no deep meaning behind these magic numbers | |
1115 | % used as factors; they just match (closely enough) what Knuth defined. | |
1116 | % | |
1117 | \def\lineskipfactor{.08333} | |
1118 | \def\strutheightpercent{.70833} | |
1119 | \def\strutdepthpercent {.29167} | |
1120 | % | |
1121 | \def\setleading#1{% | |
1122 | \normalbaselineskip = #1\relax | |
1123 | \normallineskip = \lineskipfactor\normalbaselineskip | |
1124 | \normalbaselines | |
1125 | \setbox\strutbox =\hbox{% | |
1126 | \vrule width0pt height\strutheightpercent\baselineskip | |
1127 | depth \strutdepthpercent \baselineskip | |
1128 | }% | |
1129 | } | |
ff35fedc ILT |
1130 | |
1131 | % Set the font macro #1 to the font named #2, adding on the | |
1132 | % specified font prefix (normally `cm'). | |
1133 | % #3 is the font's design size, #4 is a scale factor | |
1134 | \def\setfont#1#2#3#4{\font#1=\fontprefix#2#3 scaled #4} | |
1135 | ||
1136 | % Use cm as the default font prefix. | |
1137 | % To specify the font prefix, you must define \fontprefix | |
1138 | % before you read in texinfo.tex. | |
1139 | \ifx\fontprefix\undefined | |
1140 | \def\fontprefix{cm} | |
1141 | \fi | |
1142 | % Support font families that don't use the same naming scheme as CM. | |
1143 | \def\rmshape{r} | |
1144 | \def\rmbshape{bx} %where the normal face is bold | |
1145 | \def\bfshape{b} | |
1146 | \def\bxshape{bx} | |
1147 | \def\ttshape{tt} | |
1148 | \def\ttbshape{tt} | |
1149 | \def\ttslshape{sltt} | |
1150 | \def\itshape{ti} | |
1151 | \def\itbshape{bxti} | |
1152 | \def\slshape{sl} | |
1153 | \def\slbshape{bxsl} | |
1154 | \def\sfshape{ss} | |
1155 | \def\sfbshape{ss} | |
1156 | \def\scshape{csc} | |
1157 | \def\scbshape{csc} | |
1158 | ||
bd48e1a9 | 1159 | \newcount\mainmagstep |
ff35fedc | 1160 | \ifx\bigger\relax |
bd48e1a9 AC |
1161 | % not really supported. |
1162 | \let\mainmagstep=\magstep1 | |
1163 | \setfont\textrm\rmshape{12}{1000} | |
1164 | \setfont\texttt\ttshape{12}{1000} | |
ff35fedc | 1165 | \else |
bd48e1a9 AC |
1166 | \mainmagstep=\magstephalf |
1167 | \setfont\textrm\rmshape{10}{\mainmagstep} | |
1168 | \setfont\texttt\ttshape{10}{\mainmagstep} | |
ff35fedc ILT |
1169 | \fi |
1170 | % Instead of cmb10, you many want to use cmbx10. | |
1171 | % cmbx10 is a prettier font on its own, but cmb10 | |
1172 | % looks better when embedded in a line with cmr10. | |
1173 | \setfont\textbf\bfshape{10}{\mainmagstep} | |
1174 | \setfont\textit\itshape{10}{\mainmagstep} | |
1175 | \setfont\textsl\slshape{10}{\mainmagstep} | |
1176 | \setfont\textsf\sfshape{10}{\mainmagstep} | |
1177 | \setfont\textsc\scshape{10}{\mainmagstep} | |
1178 | \setfont\textttsl\ttslshape{10}{\mainmagstep} | |
1179 | \font\texti=cmmi10 scaled \mainmagstep | |
1180 | \font\textsy=cmsy10 scaled \mainmagstep | |
1181 | ||
1182 | % A few fonts for @defun, etc. | |
1183 | \setfont\defbf\bxshape{10}{\magstep1} %was 1314 | |
1184 | \setfont\deftt\ttshape{10}{\magstep1} | |
1185 | \def\df{\let\tentt=\deftt \let\tenbf = \defbf \bf} | |
1186 | ||
449f3b6c AC |
1187 | % Fonts for indices, footnotes, small examples (9pt). |
1188 | \setfont\smallrm\rmshape{9}{1000} | |
1189 | \setfont\smalltt\ttshape{9}{1000} | |
1190 | \setfont\smallbf\bfshape{10}{900} | |
1191 | \setfont\smallit\itshape{9}{1000} | |
1192 | \setfont\smallsl\slshape{9}{1000} | |
1193 | \setfont\smallsf\sfshape{9}{1000} | |
1194 | \setfont\smallsc\scshape{10}{900} | |
1195 | \setfont\smallttsl\ttslshape{10}{900} | |
1196 | \font\smalli=cmmi9 | |
1197 | \font\smallsy=cmsy9 | |
ff35fedc | 1198 | |
bd48e1a9 AC |
1199 | % Fonts for small examples (8pt). |
1200 | \setfont\smallerrm\rmshape{8}{1000} | |
1201 | \setfont\smallertt\ttshape{8}{1000} | |
1202 | \setfont\smallerbf\bfshape{10}{800} | |
1203 | \setfont\smallerit\itshape{8}{1000} | |
1204 | \setfont\smallersl\slshape{8}{1000} | |
1205 | \setfont\smallersf\sfshape{8}{1000} | |
1206 | \setfont\smallersc\scshape{10}{800} | |
1207 | \setfont\smallerttsl\ttslshape{10}{800} | |
1208 | \font\smalleri=cmmi8 | |
1209 | \font\smallersy=cmsy8 | |
1210 | ||
ff35fedc ILT |
1211 | % Fonts for title page: |
1212 | \setfont\titlerm\rmbshape{12}{\magstep3} | |
1213 | \setfont\titleit\itbshape{10}{\magstep4} | |
1214 | \setfont\titlesl\slbshape{10}{\magstep4} | |
1215 | \setfont\titlett\ttbshape{12}{\magstep3} | |
1216 | \setfont\titlettsl\ttslshape{10}{\magstep4} | |
1217 | \setfont\titlesf\sfbshape{17}{\magstep1} | |
1218 | \let\titlebf=\titlerm | |
1219 | \setfont\titlesc\scbshape{10}{\magstep4} | |
1220 | \font\titlei=cmmi12 scaled \magstep3 | |
1221 | \font\titlesy=cmsy10 scaled \magstep4 | |
1222 | \def\authorrm{\secrm} | |
1223 | ||
1224 | % Chapter (and unnumbered) fonts (17.28pt). | |
1225 | \setfont\chaprm\rmbshape{12}{\magstep2} | |
1226 | \setfont\chapit\itbshape{10}{\magstep3} | |
1227 | \setfont\chapsl\slbshape{10}{\magstep3} | |
1228 | \setfont\chaptt\ttbshape{12}{\magstep2} | |
1229 | \setfont\chapttsl\ttslshape{10}{\magstep3} | |
1230 | \setfont\chapsf\sfbshape{17}{1000} | |
1231 | \let\chapbf=\chaprm | |
1232 | \setfont\chapsc\scbshape{10}{\magstep3} | |
1233 | \font\chapi=cmmi12 scaled \magstep2 | |
1234 | \font\chapsy=cmsy10 scaled \magstep3 | |
1235 | ||
1236 | % Section fonts (14.4pt). | |
1237 | \setfont\secrm\rmbshape{12}{\magstep1} | |
1238 | \setfont\secit\itbshape{10}{\magstep2} | |
1239 | \setfont\secsl\slbshape{10}{\magstep2} | |
1240 | \setfont\sectt\ttbshape{12}{\magstep1} | |
1241 | \setfont\secttsl\ttslshape{10}{\magstep2} | |
1242 | \setfont\secsf\sfbshape{12}{\magstep1} | |
1243 | \let\secbf\secrm | |
1244 | \setfont\secsc\scbshape{10}{\magstep2} | |
1245 | \font\seci=cmmi12 scaled \magstep1 | |
1246 | \font\secsy=cmsy10 scaled \magstep2 | |
1247 | ||
ff35fedc ILT |
1248 | % Subsection fonts (13.15pt). |
1249 | \setfont\ssecrm\rmbshape{12}{\magstephalf} | |
1250 | \setfont\ssecit\itbshape{10}{1315} | |
1251 | \setfont\ssecsl\slbshape{10}{1315} | |
1252 | \setfont\ssectt\ttbshape{12}{\magstephalf} | |
1253 | \setfont\ssecttsl\ttslshape{10}{1315} | |
1254 | \setfont\ssecsf\sfbshape{12}{\magstephalf} | |
1255 | \let\ssecbf\ssecrm | |
1256 | \setfont\ssecsc\scbshape{10}{\magstep1} | |
1257 | \font\sseci=cmmi12 scaled \magstephalf | |
1258 | \font\ssecsy=cmsy10 scaled 1315 | |
1259 | % The smallcaps and symbol fonts should actually be scaled \magstep1.5, | |
1260 | % but that is not a standard magnification. | |
1261 | ||
1262 | % In order for the font changes to affect most math symbols and letters, | |
1263 | % we have to define the \textfont of the standard families. Since | |
bd48e1a9 AC |
1264 | % texinfo doesn't allow for producing subscripts and superscripts except |
1265 | % in the main text, we don't bother to reset \scriptfont and | |
1266 | % \scriptscriptfont (which would also require loading a lot more fonts). | |
ff35fedc ILT |
1267 | % |
1268 | \def\resetmathfonts{% | |
bd48e1a9 AC |
1269 | \textfont0=\tenrm \textfont1=\teni \textfont2=\tensy |
1270 | \textfont\itfam=\tenit \textfont\slfam=\tensl \textfont\bffam=\tenbf | |
1271 | \textfont\ttfam=\tentt \textfont\sffam=\tensf | |
ff35fedc ILT |
1272 | } |
1273 | ||
ff35fedc ILT |
1274 | % The font-changing commands redefine the meanings of \tenSTYLE, instead |
1275 | % of just \STYLE. We do this so that font changes will continue to work | |
1276 | % in math mode, where it is the current \fam that is relevant in most | |
1277 | % cases, not the current font. Plain TeX does \def\bf{\fam=\bffam | |
1278 | % \tenbf}, for example. By redefining \tenbf, we obviate the need to | |
1279 | % redefine \bf itself. | |
1280 | \def\textfonts{% | |
1281 | \let\tenrm=\textrm \let\tenit=\textit \let\tensl=\textsl | |
1282 | \let\tenbf=\textbf \let\tentt=\texttt \let\smallcaps=\textsc | |
1283 | \let\tensf=\textsf \let\teni=\texti \let\tensy=\textsy \let\tenttsl=\textttsl | |
bd48e1a9 | 1284 | \resetmathfonts \setleading{\textleading}} |
ff35fedc ILT |
1285 | \def\titlefonts{% |
1286 | \let\tenrm=\titlerm \let\tenit=\titleit \let\tensl=\titlesl | |
1287 | \let\tenbf=\titlebf \let\tentt=\titlett \let\smallcaps=\titlesc | |
1288 | \let\tensf=\titlesf \let\teni=\titlei \let\tensy=\titlesy | |
1289 | \let\tenttsl=\titlettsl | |
1290 | \resetmathfonts \setleading{25pt}} | |
1291 | \def\titlefont#1{{\titlefonts\rm #1}} | |
1292 | \def\chapfonts{% | |
1293 | \let\tenrm=\chaprm \let\tenit=\chapit \let\tensl=\chapsl | |
1294 | \let\tenbf=\chapbf \let\tentt=\chaptt \let\smallcaps=\chapsc | |
1295 | \let\tensf=\chapsf \let\teni=\chapi \let\tensy=\chapsy \let\tenttsl=\chapttsl | |
1296 | \resetmathfonts \setleading{19pt}} | |
1297 | \def\secfonts{% | |
1298 | \let\tenrm=\secrm \let\tenit=\secit \let\tensl=\secsl | |
1299 | \let\tenbf=\secbf \let\tentt=\sectt \let\smallcaps=\secsc | |
1300 | \let\tensf=\secsf \let\teni=\seci \let\tensy=\secsy \let\tenttsl=\secttsl | |
1301 | \resetmathfonts \setleading{16pt}} | |
1302 | \def\subsecfonts{% | |
1303 | \let\tenrm=\ssecrm \let\tenit=\ssecit \let\tensl=\ssecsl | |
1304 | \let\tenbf=\ssecbf \let\tentt=\ssectt \let\smallcaps=\ssecsc | |
1305 | \let\tensf=\ssecsf \let\teni=\sseci \let\tensy=\ssecsy \let\tenttsl=\ssecttsl | |
1306 | \resetmathfonts \setleading{15pt}} | |
1307 | \let\subsubsecfonts = \subsecfonts % Maybe make sssec fonts scaled magstephalf? | |
449f3b6c AC |
1308 | \def\smallfonts{% |
1309 | \let\tenrm=\smallrm \let\tenit=\smallit \let\tensl=\smallsl | |
1310 | \let\tenbf=\smallbf \let\tentt=\smalltt \let\smallcaps=\smallsc | |
1311 | \let\tensf=\smallsf \let\teni=\smalli \let\tensy=\smallsy | |
1312 | \let\tenttsl=\smallttsl | |
bd48e1a9 AC |
1313 | \resetmathfonts \setleading{10.5pt}} |
1314 | \def\smallerfonts{% | |
1315 | \let\tenrm=\smallerrm \let\tenit=\smallerit \let\tensl=\smallersl | |
1316 | \let\tenbf=\smallerbf \let\tentt=\smallertt \let\smallcaps=\smallersc | |
1317 | \let\tensf=\smallersf \let\teni=\smalleri \let\tensy=\smallersy | |
1318 | \let\tenttsl=\smallerttsl | |
1319 | \resetmathfonts \setleading{9.5pt}} | |
1320 | \let\smallexamplefonts = \smallerfonts | |
ff35fedc ILT |
1321 | |
1322 | % Set up the default fonts, so we can use them for creating boxes. | |
1323 | % | |
1324 | \textfonts | |
1325 | ||
1326 | % Define these so they can be easily changed for other fonts. | |
1327 | \def\angleleft{$\langle$} | |
1328 | \def\angleright{$\rangle$} | |
1329 | ||
1330 | % Count depth in font-changes, for error checks | |
1331 | \newcount\fontdepth \fontdepth=0 | |
1332 | ||
1333 | % Fonts for short table of contents. | |
1334 | \setfont\shortcontrm\rmshape{12}{1000} | |
1335 | \setfont\shortcontbf\bxshape{12}{1000} | |
1336 | \setfont\shortcontsl\slshape{12}{1000} | |
1337 | ||
1338 | %% Add scribe-like font environments, plus @l for inline lisp (usually sans | |
1339 | %% serif) and @ii for TeX italic | |
1340 | ||
1341 | % \smartitalic{ARG} outputs arg in italics, followed by an italic correction | |
1342 | % unless the following character is such as not to need one. | |
1343 | \def\smartitalicx{\ifx\next,\else\ifx\next-\else\ifx\next.\else\/\fi\fi\fi} | |
1344 | \def\smartslanted#1{{\sl #1}\futurelet\next\smartitalicx} | |
1345 | \def\smartitalic#1{{\it #1}\futurelet\next\smartitalicx} | |
1346 | ||
1347 | \let\i=\smartitalic | |
1348 | \let\var=\smartslanted | |
1349 | \let\dfn=\smartslanted | |
1350 | \let\emph=\smartitalic | |
1351 | \let\cite=\smartslanted | |
1352 | ||
1353 | \def\b#1{{\bf #1}} | |
1354 | \let\strong=\b | |
1355 | ||
1356 | % We can't just use \exhyphenpenalty, because that only has effect at | |
1357 | % the end of a paragraph. Restore normal hyphenation at the end of the | |
1358 | % group within which \nohyphenation is presumably called. | |
1359 | % | |
1360 | \def\nohyphenation{\hyphenchar\font = -1 \aftergroup\restorehyphenation} | |
1361 | \def\restorehyphenation{\hyphenchar\font = `- } | |
1362 | ||
1363 | \def\t#1{% | |
1364 | {\tt \rawbackslash \frenchspacing #1}% | |
1365 | \null | |
1366 | } | |
1367 | \let\ttfont=\t | |
1368 | \def\samp#1{`\tclose{#1}'\null} | |
449f3b6c AC |
1369 | \setfont\keyrm\rmshape{8}{1000} |
1370 | \font\keysy=cmsy9 | |
1371 | \def\key#1{{\keyrm\textfont2=\keysy \leavevmode\hbox{% | |
ff35fedc ILT |
1372 | \raise0.4pt\hbox{\angleleft}\kern-.08em\vtop{% |
1373 | \vbox{\hrule\kern-0.4pt | |
1374 | \hbox{\raise0.4pt\hbox{\vphantom{\angleleft}}#1}}% | |
1375 | \kern-0.4pt\hrule}% | |
1376 | \kern-.06em\raise0.4pt\hbox{\angleright}}}} | |
1377 | % The old definition, with no lozenge: | |
1378 | %\def\key #1{{\ttsl \nohyphenation \uppercase{#1}}\null} | |
1379 | \def\ctrl #1{{\tt \rawbackslash \hat}#1} | |
1380 | ||
1381 | % @file, @option are the same as @samp. | |
1382 | \let\file=\samp | |
1383 | \let\option=\samp | |
1384 | ||
1385 | % @code is a modification of @t, | |
1386 | % which makes spaces the same size as normal in the surrounding text. | |
1387 | \def\tclose#1{% | |
1388 | {% | |
1389 | % Change normal interword space to be same as for the current font. | |
1390 | \spaceskip = \fontdimen2\font | |
1391 | % | |
1392 | % Switch to typewriter. | |
1393 | \tt | |
1394 | % | |
1395 | % But `\ ' produces the large typewriter interword space. | |
1396 | \def\ {{\spaceskip = 0pt{} }}% | |
1397 | % | |
1398 | % Turn off hyphenation. | |
1399 | \nohyphenation | |
1400 | % | |
1401 | \rawbackslash | |
1402 | \frenchspacing | |
1403 | #1% | |
1404 | }% | |
1405 | \null | |
1406 | } | |
1407 | ||
1408 | % We *must* turn on hyphenation at `-' and `_' in \code. | |
1409 | % Otherwise, it is too hard to avoid overfull hboxes | |
1410 | % in the Emacs manual, the Library manual, etc. | |
1411 | ||
1412 | % Unfortunately, TeX uses one parameter (\hyphenchar) to control | |
1413 | % both hyphenation at - and hyphenation within words. | |
1414 | % We must therefore turn them both off (\tclose does that) | |
1415 | % and arrange explicitly to hyphenate at a dash. | |
1416 | % -- rms. | |
1417 | { | |
1418 | \catcode`\-=\active | |
1419 | \catcode`\_=\active | |
1420 | % | |
1421 | \global\def\code{\begingroup | |
1422 | \catcode`\-=\active \let-\codedash | |
1423 | \catcode`\_=\active \let_\codeunder | |
1424 | \codex | |
1425 | } | |
1426 | % | |
1427 | % If we end up with any active - characters when handling the index, | |
1428 | % just treat them as a normal -. | |
1429 | \global\def\indexbreaks{\catcode`\-=\active \let-\realdash} | |
1430 | } | |
1431 | ||
1432 | \def\realdash{-} | |
1433 | \def\codedash{-\discretionary{}{}{}} | |
1434 | \def\codeunder{\ifusingtt{\normalunderscore\discretionary{}{}{}}{\_}} | |
1435 | \def\codex #1{\tclose{#1}\endgroup} | |
1436 | ||
1437 | %\let\exp=\tclose %Was temporary | |
1438 | ||
1439 | % @kbd is like @code, except that if the argument is just one @key command, | |
1440 | % then @kbd has no effect. | |
1441 | ||
1442 | % @kbdinputstyle -- arg is `distinct' (@kbd uses slanted tty font always), | |
1443 | % `example' (@kbd uses ttsl only inside of @example and friends), | |
1444 | % or `code' (@kbd uses normal tty font always). | |
1445 | \def\kbdinputstyle{\parsearg\kbdinputstylexxx} | |
1446 | \def\kbdinputstylexxx#1{% | |
1447 | \def\arg{#1}% | |
1448 | \ifx\arg\worddistinct | |
1449 | \gdef\kbdexamplefont{\ttsl}\gdef\kbdfont{\ttsl}% | |
1450 | \else\ifx\arg\wordexample | |
1451 | \gdef\kbdexamplefont{\ttsl}\gdef\kbdfont{\tt}% | |
1452 | \else\ifx\arg\wordcode | |
1453 | \gdef\kbdexamplefont{\tt}\gdef\kbdfont{\tt}% | |
1454 | \fi\fi\fi | |
1455 | } | |
1456 | \def\worddistinct{distinct} | |
1457 | \def\wordexample{example} | |
1458 | \def\wordcode{code} | |
1459 | ||
1460 | % Default is kbdinputdistinct. (Too much of a hassle to call the macro, | |
1461 | % the catcodes are wrong for parsearg to work.) | |
1462 | \gdef\kbdexamplefont{\ttsl}\gdef\kbdfont{\ttsl} | |
1463 | ||
1464 | \def\xkey{\key} | |
1465 | \def\kbdfoo#1#2#3\par{\def\one{#1}\def\three{#3}\def\threex{??}% | |
1466 | \ifx\one\xkey\ifx\threex\three \key{#2}% | |
1467 | \else{\tclose{\kbdfont\look}}\fi | |
1468 | \else{\tclose{\kbdfont\look}}\fi} | |
1469 | ||
1470 | % For @url, @env, @command quotes seem unnecessary, so use \code. | |
1471 | \let\url=\code | |
1472 | \let\env=\code | |
1473 | \let\command=\code | |
1474 | ||
449f3b6c AC |
1475 | % @uref (abbreviation for `urlref') takes an optional (comma-separated) |
1476 | % second argument specifying the text to display and an optional third | |
1477 | % arg as text to display instead of (rather than in addition to) the url | |
1478 | % itself. First (mandatory) arg is the url. Perhaps eventually put in | |
1479 | % a hypertex \special here. | |
1480 | % | |
1481 | \def\uref#1{\douref #1,,,\finish} | |
1482 | \def\douref#1,#2,#3,#4\finish{\begingroup | |
1483 | \unsepspaces | |
1484 | \pdfurl{#1}% | |
1485 | \setbox0 = \hbox{\ignorespaces #3}% | |
ff35fedc | 1486 | \ifdim\wd0 > 0pt |
449f3b6c | 1487 | \unhbox0 % third arg given, show only that |
ff35fedc | 1488 | \else |
449f3b6c AC |
1489 | \setbox0 = \hbox{\ignorespaces #2}% |
1490 | \ifdim\wd0 > 0pt | |
1491 | \ifpdf | |
1492 | \unhbox0 % PDF: 2nd arg given, show only it | |
1493 | \else | |
1494 | \unhbox0\ (\code{#1})% DVI: 2nd arg given, show both it and url | |
1495 | \fi | |
1496 | \else | |
1497 | \code{#1}% only url given, so show it | |
1498 | \fi | |
ff35fedc | 1499 | \fi |
449f3b6c AC |
1500 | \endlink |
1501 | \endgroup} | |
ff35fedc | 1502 | |
449f3b6c AC |
1503 | % rms does not like angle brackets --karl, 17may97. |
1504 | % So now @email is just like @uref, unless we are pdf. | |
1505 | % | |
ff35fedc | 1506 | %\def\email#1{\angleleft{\tt #1}\angleright} |
449f3b6c AC |
1507 | \ifpdf |
1508 | \def\email#1{\doemail#1,,\finish} | |
1509 | \def\doemail#1,#2,#3\finish{\begingroup | |
1510 | \unsepspaces | |
1511 | \pdfurl{mailto:#1}% | |
1512 | \setbox0 = \hbox{\ignorespaces #2}% | |
1513 | \ifdim\wd0>0pt\unhbox0\else\code{#1}\fi | |
1514 | \endlink | |
1515 | \endgroup} | |
1516 | \else | |
1517 | \let\email=\uref | |
1518 | \fi | |
ff35fedc ILT |
1519 | |
1520 | % Check if we are currently using a typewriter font. Since all the | |
1521 | % Computer Modern typewriter fonts have zero interword stretch (and | |
1522 | % shrink), and it is reasonable to expect all typewriter fonts to have | |
1523 | % this property, we can check that font parameter. | |
1524 | % | |
1525 | \def\ifmonospace{\ifdim\fontdimen3\font=0pt } | |
1526 | ||
1527 | % Typeset a dimension, e.g., `in' or `pt'. The only reason for the | |
1528 | % argument is to make the input look right: @dmn{pt} instead of @dmn{}pt. | |
1529 | % | |
1530 | \def\dmn#1{\thinspace #1} | |
1531 | ||
1532 | \def\kbd#1{\def\look{#1}\expandafter\kbdfoo\look??\par} | |
1533 | ||
1534 | % @l was never documented to mean ``switch to the Lisp font'', | |
1535 | % and it is not used as such in any manual I can find. We need it for | |
1536 | % Polish suppressed-l. --karl, 22sep96. | |
1537 | %\def\l#1{{\li #1}\null} | |
1538 | ||
1539 | % Explicit font changes: @r, @sc, undocumented @ii. | |
1540 | \def\r#1{{\rm #1}} % roman font | |
1541 | \def\sc#1{{\smallcaps#1}} % smallcaps font | |
1542 | \def\ii#1{{\it #1}} % italic font | |
1543 | ||
1544 | % @acronym downcases the argument and prints in smallcaps. | |
1545 | \def\acronym#1{{\smallcaps \lowercase{#1}}} | |
1546 | ||
1547 | % @pounds{} is a sterling sign. | |
1548 | \def\pounds{{\it\$}} | |
1549 | ||
1550 | ||
1551 | \message{page headings,} | |
1552 | ||
1553 | \newskip\titlepagetopglue \titlepagetopglue = 1.5in | |
1554 | \newskip\titlepagebottomglue \titlepagebottomglue = 2pc | |
1555 | ||
1556 | % First the title page. Must do @settitle before @titlepage. | |
1557 | \newif\ifseenauthor | |
1558 | \newif\iffinishedtitlepage | |
1559 | ||
1560 | % Do an implicit @contents or @shortcontents after @end titlepage if the | |
449f3b6c AC |
1561 | % user says @setcontentsaftertitlepage or @setshortcontentsaftertitlepage. |
1562 | % | |
ff35fedc ILT |
1563 | \newif\ifsetcontentsaftertitlepage |
1564 | \let\setcontentsaftertitlepage = \setcontentsaftertitlepagetrue | |
1565 | \newif\ifsetshortcontentsaftertitlepage | |
1566 | \let\setshortcontentsaftertitlepage = \setshortcontentsaftertitlepagetrue | |
1567 | ||
1568 | \def\shorttitlepage{\parsearg\shorttitlepagezzz} | |
1569 | \def\shorttitlepagezzz #1{\begingroup\hbox{}\vskip 1.5in \chaprm \centerline{#1}% | |
1570 | \endgroup\page\hbox{}\page} | |
1571 | ||
1572 | \def\titlepage{\begingroup \parindent=0pt \textfonts | |
1573 | \let\subtitlerm=\tenrm | |
1574 | \def\subtitlefont{\subtitlerm \normalbaselineskip = 13pt \normalbaselines}% | |
1575 | % | |
1576 | \def\authorfont{\authorrm \normalbaselineskip = 16pt \normalbaselines}% | |
1577 | % | |
1578 | % Leave some space at the very top of the page. | |
1579 | \vglue\titlepagetopglue | |
1580 | % | |
1581 | % Now you can print the title using @title. | |
1582 | \def\title{\parsearg\titlezzz}% | |
1583 | \def\titlezzz##1{\leftline{\titlefonts\rm ##1} | |
1584 | % print a rule at the page bottom also. | |
1585 | \finishedtitlepagefalse | |
1586 | \vskip4pt \hrule height 4pt width \hsize \vskip4pt}% | |
1587 | % No rule at page bottom unless we print one at the top with @title. | |
1588 | \finishedtitlepagetrue | |
1589 | % | |
1590 | % Now you can put text using @subtitle. | |
1591 | \def\subtitle{\parsearg\subtitlezzz}% | |
1592 | \def\subtitlezzz##1{{\subtitlefont \rightline{##1}}}% | |
1593 | % | |
1594 | % @author should come last, but may come many times. | |
1595 | \def\author{\parsearg\authorzzz}% | |
1596 | \def\authorzzz##1{\ifseenauthor\else\vskip 0pt plus 1filll\seenauthortrue\fi | |
1597 | {\authorfont \leftline{##1}}}% | |
1598 | % | |
1599 | % Most title ``pages'' are actually two pages long, with space | |
1600 | % at the top of the second. We don't want the ragged left on the second. | |
1601 | \let\oldpage = \page | |
1602 | \def\page{% | |
1603 | \iffinishedtitlepage\else | |
1604 | \finishtitlepage | |
1605 | \fi | |
1606 | \oldpage | |
1607 | \let\page = \oldpage | |
1608 | \hbox{}}% | |
1609 | % \def\page{\oldpage \hbox{}} | |
1610 | } | |
1611 | ||
1612 | \def\Etitlepage{% | |
1613 | \iffinishedtitlepage\else | |
1614 | \finishtitlepage | |
1615 | \fi | |
1616 | % It is important to do the page break before ending the group, | |
1617 | % because the headline and footline are only empty inside the group. | |
1618 | % If we use the new definition of \page, we always get a blank page | |
1619 | % after the title page, which we certainly don't want. | |
1620 | \oldpage | |
1621 | \endgroup | |
1622 | % | |
bd48e1a9 AC |
1623 | % Need this before the \...aftertitlepage checks so that if they are |
1624 | % in effect the toc pages will come out with page numbers. | |
1625 | \HEADINGSon | |
1626 | % | |
ff35fedc ILT |
1627 | % If they want short, they certainly want long too. |
1628 | \ifsetshortcontentsaftertitlepage | |
1629 | \shortcontents | |
1630 | \contents | |
1631 | \global\let\shortcontents = \relax | |
1632 | \global\let\contents = \relax | |
1633 | \fi | |
1634 | % | |
1635 | \ifsetcontentsaftertitlepage | |
1636 | \contents | |
1637 | \global\let\contents = \relax | |
1638 | \global\let\shortcontents = \relax | |
1639 | \fi | |
1640 | % | |
449f3b6c | 1641 | \ifpdf \pdfmakepagedesttrue \fi |
ff35fedc ILT |
1642 | } |
1643 | ||
1644 | \def\finishtitlepage{% | |
1645 | \vskip4pt \hrule height 2pt width \hsize | |
1646 | \vskip\titlepagebottomglue | |
1647 | \finishedtitlepagetrue | |
1648 | } | |
1649 | ||
1650 | %%% Set up page headings and footings. | |
1651 | ||
1652 | \let\thispage=\folio | |
1653 | ||
1654 | \newtoks\evenheadline % headline on even pages | |
1655 | \newtoks\oddheadline % headline on odd pages | |
1656 | \newtoks\evenfootline % footline on even pages | |
1657 | \newtoks\oddfootline % footline on odd pages | |
1658 | ||
1659 | % Now make Tex use those variables | |
1660 | \headline={{\textfonts\rm \ifodd\pageno \the\oddheadline | |
1661 | \else \the\evenheadline \fi}} | |
1662 | \footline={{\textfonts\rm \ifodd\pageno \the\oddfootline | |
1663 | \else \the\evenfootline \fi}\HEADINGShook} | |
1664 | \let\HEADINGShook=\relax | |
1665 | ||
1666 | % Commands to set those variables. | |
1667 | % For example, this is what @headings on does | |
1668 | % @evenheading @thistitle|@thispage|@thischapter | |
1669 | % @oddheading @thischapter|@thispage|@thistitle | |
1670 | % @evenfooting @thisfile|| | |
1671 | % @oddfooting ||@thisfile | |
1672 | ||
1673 | \def\evenheading{\parsearg\evenheadingxxx} | |
1674 | \def\oddheading{\parsearg\oddheadingxxx} | |
1675 | \def\everyheading{\parsearg\everyheadingxxx} | |
1676 | ||
1677 | \def\evenfooting{\parsearg\evenfootingxxx} | |
1678 | \def\oddfooting{\parsearg\oddfootingxxx} | |
1679 | \def\everyfooting{\parsearg\everyfootingxxx} | |
1680 | ||
1681 | {\catcode`\@=0 % | |
1682 | ||
1683 | \gdef\evenheadingxxx #1{\evenheadingyyy #1@|@|@|@|\finish} | |
1684 | \gdef\evenheadingyyy #1@|#2@|#3@|#4\finish{% | |
1685 | \global\evenheadline={\rlap{\centerline{#2}}\line{#1\hfil#3}}} | |
1686 | ||
1687 | \gdef\oddheadingxxx #1{\oddheadingyyy #1@|@|@|@|\finish} | |
1688 | \gdef\oddheadingyyy #1@|#2@|#3@|#4\finish{% | |
1689 | \global\oddheadline={\rlap{\centerline{#2}}\line{#1\hfil#3}}} | |
1690 | ||
1691 | \gdef\everyheadingxxx#1{\oddheadingxxx{#1}\evenheadingxxx{#1}}% | |
1692 | ||
1693 | \gdef\evenfootingxxx #1{\evenfootingyyy #1@|@|@|@|\finish} | |
1694 | \gdef\evenfootingyyy #1@|#2@|#3@|#4\finish{% | |
1695 | \global\evenfootline={\rlap{\centerline{#2}}\line{#1\hfil#3}}} | |
1696 | ||
1697 | \gdef\oddfootingxxx #1{\oddfootingyyy #1@|@|@|@|\finish} | |
1698 | \gdef\oddfootingyyy #1@|#2@|#3@|#4\finish{% | |
1699 | \global\oddfootline = {\rlap{\centerline{#2}}\line{#1\hfil#3}}% | |
1700 | % | |
1701 | % Leave some space for the footline. Hopefully ok to assume | |
1702 | % @evenfooting will not be used by itself. | |
1703 | \global\advance\pageheight by -\baselineskip | |
1704 | \global\advance\vsize by -\baselineskip | |
1705 | } | |
1706 | ||
1707 | \gdef\everyfootingxxx#1{\oddfootingxxx{#1}\evenfootingxxx{#1}} | |
1708 | % | |
1709 | }% unbind the catcode of @. | |
1710 | ||
1711 | % @headings double turns headings on for double-sided printing. | |
1712 | % @headings single turns headings on for single-sided printing. | |
1713 | % @headings off turns them off. | |
1714 | % @headings on same as @headings double, retained for compatibility. | |
1715 | % @headings after turns on double-sided headings after this page. | |
1716 | % @headings doubleafter turns on double-sided headings after this page. | |
1717 | % @headings singleafter turns on single-sided headings after this page. | |
1718 | % By default, they are off at the start of a document, | |
1719 | % and turned `on' after @end titlepage. | |
1720 | ||
1721 | \def\headings #1 {\csname HEADINGS#1\endcsname} | |
1722 | ||
1723 | \def\HEADINGSoff{ | |
1724 | \global\evenheadline={\hfil} \global\evenfootline={\hfil} | |
1725 | \global\oddheadline={\hfil} \global\oddfootline={\hfil}} | |
1726 | \HEADINGSoff | |
1727 | % When we turn headings on, set the page number to 1. | |
1728 | % For double-sided printing, put current file name in lower left corner, | |
1729 | % chapter name on inside top of right hand pages, document | |
1730 | % title on inside top of left hand pages, and page numbers on outside top | |
1731 | % edge of all pages. | |
1732 | \def\HEADINGSdouble{ | |
1733 | \global\pageno=1 | |
1734 | \global\evenfootline={\hfil} | |
1735 | \global\oddfootline={\hfil} | |
1736 | \global\evenheadline={\line{\folio\hfil\thistitle}} | |
1737 | \global\oddheadline={\line{\thischapter\hfil\folio}} | |
1738 | \global\let\contentsalignmacro = \chapoddpage | |
1739 | } | |
1740 | \let\contentsalignmacro = \chappager | |
1741 | ||
1742 | % For single-sided printing, chapter title goes across top left of page, | |
1743 | % page number on top right. | |
1744 | \def\HEADINGSsingle{ | |
1745 | \global\pageno=1 | |
1746 | \global\evenfootline={\hfil} | |
1747 | \global\oddfootline={\hfil} | |
1748 | \global\evenheadline={\line{\thischapter\hfil\folio}} | |
1749 | \global\oddheadline={\line{\thischapter\hfil\folio}} | |
1750 | \global\let\contentsalignmacro = \chappager | |
1751 | } | |
1752 | \def\HEADINGSon{\HEADINGSdouble} | |
1753 | ||
1754 | \def\HEADINGSafter{\let\HEADINGShook=\HEADINGSdoublex} | |
1755 | \let\HEADINGSdoubleafter=\HEADINGSafter | |
1756 | \def\HEADINGSdoublex{% | |
1757 | \global\evenfootline={\hfil} | |
1758 | \global\oddfootline={\hfil} | |
1759 | \global\evenheadline={\line{\folio\hfil\thistitle}} | |
1760 | \global\oddheadline={\line{\thischapter\hfil\folio}} | |
1761 | \global\let\contentsalignmacro = \chapoddpage | |
1762 | } | |
1763 | ||
1764 | \def\HEADINGSsingleafter{\let\HEADINGShook=\HEADINGSsinglex} | |
1765 | \def\HEADINGSsinglex{% | |
1766 | \global\evenfootline={\hfil} | |
1767 | \global\oddfootline={\hfil} | |
1768 | \global\evenheadline={\line{\thischapter\hfil\folio}} | |
1769 | \global\oddheadline={\line{\thischapter\hfil\folio}} | |
1770 | \global\let\contentsalignmacro = \chappager | |
1771 | } | |
1772 | ||
1773 | % Subroutines used in generating headings | |
ec9914b0 AC |
1774 | % This produces Day Month Year style of output. |
1775 | % Only define if not already defined, in case a txi-??.tex file has set | |
1776 | % up a different format (e.g., txi-cs.tex does this). | |
1777 | \ifx\today\undefined | |
449f3b6c AC |
1778 | \def\today{% |
1779 | \number\day\space | |
1780 | \ifcase\month | |
1781 | \or\putwordMJan\or\putwordMFeb\or\putwordMMar\or\putwordMApr | |
1782 | \or\putwordMMay\or\putwordMJun\or\putwordMJul\or\putwordMAug | |
1783 | \or\putwordMSep\or\putwordMOct\or\putwordMNov\or\putwordMDec | |
1784 | \fi | |
1785 | \space\number\year} | |
ec9914b0 | 1786 | \fi |
449f3b6c AC |
1787 | |
1788 | % @settitle line... specifies the title of the document, for headings. | |
1789 | % It generates no output of its own. | |
1790 | \def\thistitle{\putwordNoTitle} | |
ff35fedc ILT |
1791 | \def\settitle{\parsearg\settitlezzz} |
1792 | \def\settitlezzz #1{\gdef\thistitle{#1}} | |
1793 | ||
1794 | ||
1795 | \message{tables,} | |
1796 | % Tables -- @table, @ftable, @vtable, @item(x), @kitem(x), @xitem(x). | |
1797 | ||
1798 | % default indentation of table text | |
1799 | \newdimen\tableindent \tableindent=.8in | |
1800 | % default indentation of @itemize and @enumerate text | |
1801 | \newdimen\itemindent \itemindent=.3in | |
1802 | % margin between end of table item and start of table text. | |
1803 | \newdimen\itemmargin \itemmargin=.1in | |
1804 | ||
1805 | % used internally for \itemindent minus \itemmargin | |
1806 | \newdimen\itemmax | |
1807 | ||
1808 | % Note @table, @vtable, and @vtable define @item, @itemx, etc., with | |
1809 | % these defs. | |
1810 | % They also define \itemindex | |
1811 | % to index the item name in whatever manner is desired (perhaps none). | |
1812 | ||
1813 | \newif\ifitemxneedsnegativevskip | |
1814 | ||
1815 | \def\itemxpar{\par\ifitemxneedsnegativevskip\nobreak\vskip-\parskip\nobreak\fi} | |
1816 | ||
1817 | \def\internalBitem{\smallbreak \parsearg\itemzzz} | |
1818 | \def\internalBitemx{\itemxpar \parsearg\itemzzz} | |
1819 | ||
1820 | \def\internalBxitem "#1"{\def\xitemsubtopix{#1} \smallbreak \parsearg\xitemzzz} | |
1821 | \def\internalBxitemx "#1"{\def\xitemsubtopix{#1} \itemxpar \parsearg\xitemzzz} | |
1822 | ||
1823 | \def\internalBkitem{\smallbreak \parsearg\kitemzzz} | |
1824 | \def\internalBkitemx{\itemxpar \parsearg\kitemzzz} | |
1825 | ||
1826 | \def\kitemzzz #1{\dosubind {kw}{\code{#1}}{for {\bf \lastfunction}}% | |
1827 | \itemzzz {#1}} | |
1828 | ||
1829 | \def\xitemzzz #1{\dosubind {kw}{\code{#1}}{for {\bf \xitemsubtopic}}% | |
1830 | \itemzzz {#1}} | |
1831 | ||
1832 | \def\itemzzz #1{\begingroup % | |
1833 | \advance\hsize by -\rightskip | |
1834 | \advance\hsize by -\tableindent | |
1835 | \setbox0=\hbox{\itemfont{#1}}% | |
1836 | \itemindex{#1}% | |
1837 | \nobreak % This prevents a break before @itemx. | |
1838 | % | |
1839 | % If the item text does not fit in the space we have, put it on a line | |
1840 | % by itself, and do not allow a page break either before or after that | |
1841 | % line. We do not start a paragraph here because then if the next | |
1842 | % command is, e.g., @kindex, the whatsit would get put into the | |
1843 | % horizontal list on a line by itself, resulting in extra blank space. | |
1844 | \ifdim \wd0>\itemmax | |
1845 | % | |
1846 | % Make this a paragraph so we get the \parskip glue and wrapping, | |
1847 | % but leave it ragged-right. | |
1848 | \begingroup | |
1849 | \advance\leftskip by-\tableindent | |
1850 | \advance\hsize by\tableindent | |
1851 | \advance\rightskip by0pt plus1fil | |
1852 | \leavevmode\unhbox0\par | |
1853 | \endgroup | |
1854 | % | |
1855 | % We're going to be starting a paragraph, but we don't want the | |
1856 | % \parskip glue -- logically it's part of the @item we just started. | |
1857 | \nobreak \vskip-\parskip | |
1858 | % | |
1859 | % Stop a page break at the \parskip glue coming up. Unfortunately | |
1860 | % we can't prevent a possible page break at the following | |
1861 | % \baselineskip glue. | |
1862 | \nobreak | |
1863 | \endgroup | |
1864 | \itemxneedsnegativevskipfalse | |
1865 | \else | |
1866 | % The item text fits into the space. Start a paragraph, so that the | |
449f3b6c | 1867 | % following text (if any) will end up on the same line. |
ff35fedc ILT |
1868 | \noindent |
1869 | % Do this with kerns and \unhbox so that if there is a footnote in | |
1870 | % the item text, it can migrate to the main vertical list and | |
1871 | % eventually be printed. | |
1872 | \nobreak\kern-\tableindent | |
1873 | \dimen0 = \itemmax \advance\dimen0 by \itemmargin \advance\dimen0 by -\wd0 | |
1874 | \unhbox0 | |
1875 | \nobreak\kern\dimen0 | |
1876 | \endgroup | |
1877 | \itemxneedsnegativevskiptrue | |
1878 | \fi | |
1879 | } | |
1880 | ||
1881 | \def\item{\errmessage{@item while not in a table}} | |
1882 | \def\itemx{\errmessage{@itemx while not in a table}} | |
1883 | \def\kitem{\errmessage{@kitem while not in a table}} | |
1884 | \def\kitemx{\errmessage{@kitemx while not in a table}} | |
1885 | \def\xitem{\errmessage{@xitem while not in a table}} | |
1886 | \def\xitemx{\errmessage{@xitemx while not in a table}} | |
1887 | ||
1888 | % Contains a kludge to get @end[description] to work. | |
1889 | \def\description{\tablez{\dontindex}{1}{}{}{}{}} | |
1890 | ||
1891 | % @table, @ftable, @vtable. | |
1892 | \def\table{\begingroup\inENV\obeylines\obeyspaces\tablex} | |
1893 | {\obeylines\obeyspaces% | |
1894 | \gdef\tablex #1^^M{% | |
1895 | \tabley\dontindex#1 \endtabley}} | |
1896 | ||
1897 | \def\ftable{\begingroup\inENV\obeylines\obeyspaces\ftablex} | |
1898 | {\obeylines\obeyspaces% | |
1899 | \gdef\ftablex #1^^M{% | |
1900 | \tabley\fnitemindex#1 \endtabley | |
1901 | \def\Eftable{\endgraf\afterenvbreak\endgroup}% | |
1902 | \let\Etable=\relax}} | |
1903 | ||
1904 | \def\vtable{\begingroup\inENV\obeylines\obeyspaces\vtablex} | |
1905 | {\obeylines\obeyspaces% | |
1906 | \gdef\vtablex #1^^M{% | |
1907 | \tabley\vritemindex#1 \endtabley | |
1908 | \def\Evtable{\endgraf\afterenvbreak\endgroup}% | |
1909 | \let\Etable=\relax}} | |
1910 | ||
1911 | \def\dontindex #1{} | |
1912 | \def\fnitemindex #1{\doind {fn}{\code{#1}}}% | |
1913 | \def\vritemindex #1{\doind {vr}{\code{#1}}}% | |
1914 | ||
1915 | {\obeyspaces % | |
1916 | \gdef\tabley#1#2 #3 #4 #5 #6 #7\endtabley{\endgroup% | |
1917 | \tablez{#1}{#2}{#3}{#4}{#5}{#6}}} | |
1918 | ||
1919 | \def\tablez #1#2#3#4#5#6{% | |
1920 | \aboveenvbreak % | |
1921 | \begingroup % | |
1922 | \def\Edescription{\Etable}% Necessary kludge. | |
1923 | \let\itemindex=#1% | |
1924 | \ifnum 0#3>0 \advance \leftskip by #3\mil \fi % | |
1925 | \ifnum 0#4>0 \tableindent=#4\mil \fi % | |
1926 | \ifnum 0#5>0 \advance \rightskip by #5\mil \fi % | |
1927 | \def\itemfont{#2}% | |
1928 | \itemmax=\tableindent % | |
1929 | \advance \itemmax by -\itemmargin % | |
1930 | \advance \leftskip by \tableindent % | |
1931 | \exdentamount=\tableindent | |
1932 | \parindent = 0pt | |
1933 | \parskip = \smallskipamount | |
1934 | \ifdim \parskip=0pt \parskip=2pt \fi% | |
1935 | \def\Etable{\endgraf\afterenvbreak\endgroup}% | |
1936 | \let\item = \internalBitem % | |
1937 | \let\itemx = \internalBitemx % | |
1938 | \let\kitem = \internalBkitem % | |
1939 | \let\kitemx = \internalBkitemx % | |
1940 | \let\xitem = \internalBxitem % | |
1941 | \let\xitemx = \internalBxitemx % | |
1942 | } | |
1943 | ||
1944 | % This is the counter used by @enumerate, which is really @itemize | |
1945 | ||
1946 | \newcount \itemno | |
1947 | ||
1948 | \def\itemize{\parsearg\itemizezzz} | |
1949 | ||
1950 | \def\itemizezzz #1{% | |
1951 | \begingroup % ended by the @end itemize | |
1952 | \itemizey {#1}{\Eitemize} | |
1953 | } | |
1954 | ||
1955 | \def\itemizey #1#2{% | |
1956 | \aboveenvbreak % | |
1957 | \itemmax=\itemindent % | |
1958 | \advance \itemmax by -\itemmargin % | |
1959 | \advance \leftskip by \itemindent % | |
1960 | \exdentamount=\itemindent | |
1961 | \parindent = 0pt % | |
1962 | \parskip = \smallskipamount % | |
1963 | \ifdim \parskip=0pt \parskip=2pt \fi% | |
1964 | \def#2{\endgraf\afterenvbreak\endgroup}% | |
1965 | \def\itemcontents{#1}% | |
1966 | \let\item=\itemizeitem} | |
1967 | ||
1968 | % Set sfcode to normal for the chars that usually have another value. | |
1969 | % These are `.?!:;,' | |
1970 | \def\frenchspacing{\sfcode46=1000 \sfcode63=1000 \sfcode33=1000 | |
1971 | \sfcode58=1000 \sfcode59=1000 \sfcode44=1000 } | |
1972 | ||
1973 | % \splitoff TOKENS\endmark defines \first to be the first token in | |
1974 | % TOKENS, and \rest to be the remainder. | |
1975 | % | |
1976 | \def\splitoff#1#2\endmark{\def\first{#1}\def\rest{#2}}% | |
1977 | ||
1978 | % Allow an optional argument of an uppercase letter, lowercase letter, | |
1979 | % or number, to specify the first label in the enumerated list. No | |
1980 | % argument is the same as `1'. | |
1981 | % | |
1982 | \def\enumerate{\parsearg\enumeratezzz} | |
1983 | \def\enumeratezzz #1{\enumeratey #1 \endenumeratey} | |
1984 | \def\enumeratey #1 #2\endenumeratey{% | |
1985 | \begingroup % ended by the @end enumerate | |
1986 | % | |
1987 | % If we were given no argument, pretend we were given `1'. | |
1988 | \def\thearg{#1}% | |
1989 | \ifx\thearg\empty \def\thearg{1}\fi | |
1990 | % | |
1991 | % Detect if the argument is a single token. If so, it might be a | |
1992 | % letter. Otherwise, the only valid thing it can be is a number. | |
1993 | % (We will always have one token, because of the test we just made. | |
1994 | % This is a good thing, since \splitoff doesn't work given nothing at | |
1995 | % all -- the first parameter is undelimited.) | |
1996 | \expandafter\splitoff\thearg\endmark | |
1997 | \ifx\rest\empty | |
1998 | % Only one token in the argument. It could still be anything. | |
1999 | % A ``lowercase letter'' is one whose \lccode is nonzero. | |
2000 | % An ``uppercase letter'' is one whose \lccode is both nonzero, and | |
2001 | % not equal to itself. | |
2002 | % Otherwise, we assume it's a number. | |
2003 | % | |
2004 | % We need the \relax at the end of the \ifnum lines to stop TeX from | |
2005 | % continuing to look for a <number>. | |
2006 | % | |
2007 | \ifnum\lccode\expandafter`\thearg=0\relax | |
2008 | \numericenumerate % a number (we hope) | |
2009 | \else | |
2010 | % It's a letter. | |
2011 | \ifnum\lccode\expandafter`\thearg=\expandafter`\thearg\relax | |
2012 | \lowercaseenumerate % lowercase letter | |
2013 | \else | |
2014 | \uppercaseenumerate % uppercase letter | |
2015 | \fi | |
2016 | \fi | |
2017 | \else | |
2018 | % Multiple tokens in the argument. We hope it's a number. | |
2019 | \numericenumerate | |
2020 | \fi | |
2021 | } | |
2022 | ||
2023 | % An @enumerate whose labels are integers. The starting integer is | |
2024 | % given in \thearg. | |
2025 | % | |
2026 | \def\numericenumerate{% | |
2027 | \itemno = \thearg | |
2028 | \startenumeration{\the\itemno}% | |
2029 | } | |
2030 | ||
2031 | % The starting (lowercase) letter is in \thearg. | |
2032 | \def\lowercaseenumerate{% | |
2033 | \itemno = \expandafter`\thearg | |
2034 | \startenumeration{% | |
2035 | % Be sure we're not beyond the end of the alphabet. | |
2036 | \ifnum\itemno=0 | |
2037 | \errmessage{No more lowercase letters in @enumerate; get a bigger | |
2038 | alphabet}% | |
2039 | \fi | |
2040 | \char\lccode\itemno | |
2041 | }% | |
2042 | } | |
2043 | ||
2044 | % The starting (uppercase) letter is in \thearg. | |
2045 | \def\uppercaseenumerate{% | |
2046 | \itemno = \expandafter`\thearg | |
2047 | \startenumeration{% | |
2048 | % Be sure we're not beyond the end of the alphabet. | |
2049 | \ifnum\itemno=0 | |
2050 | \errmessage{No more uppercase letters in @enumerate; get a bigger | |
2051 | alphabet} | |
2052 | \fi | |
2053 | \char\uccode\itemno | |
2054 | }% | |
2055 | } | |
2056 | ||
2057 | % Call itemizey, adding a period to the first argument and supplying the | |
2058 | % common last two arguments. Also subtract one from the initial value in | |
2059 | % \itemno, since @item increments \itemno. | |
2060 | % | |
2061 | \def\startenumeration#1{% | |
2062 | \advance\itemno by -1 | |
2063 | \itemizey{#1.}\Eenumerate\flushcr | |
2064 | } | |
2065 | ||
2066 | % @alphaenumerate and @capsenumerate are abbreviations for giving an arg | |
2067 | % to @enumerate. | |
2068 | % | |
2069 | \def\alphaenumerate{\enumerate{a}} | |
2070 | \def\capsenumerate{\enumerate{A}} | |
2071 | \def\Ealphaenumerate{\Eenumerate} | |
2072 | \def\Ecapsenumerate{\Eenumerate} | |
2073 | ||
2074 | % Definition of @item while inside @itemize. | |
2075 | ||
2076 | \def\itemizeitem{% | |
2077 | \advance\itemno by 1 | |
2078 | {\let\par=\endgraf \smallbreak}% | |
2079 | \ifhmode \errmessage{In hmode at itemizeitem}\fi | |
2080 | {\parskip=0in \hskip 0pt | |
2081 | \hbox to 0pt{\hss \itemcontents\hskip \itemmargin}% | |
2082 | \vadjust{\penalty 1200}}% | |
2083 | \flushcr} | |
2084 | ||
2085 | % @multitable macros | |
2086 | % Amy Hendrickson, 8/18/94, 3/6/96 | |
2087 | % | |
2088 | % @multitable ... @end multitable will make as many columns as desired. | |
2089 | % Contents of each column will wrap at width given in preamble. Width | |
2090 | % can be specified either with sample text given in a template line, | |
2091 | % or in percent of \hsize, the current width of text on page. | |
2092 | ||
2093 | % Table can continue over pages but will only break between lines. | |
2094 | ||
2095 | % To make preamble: | |
2096 | % | |
2097 | % Either define widths of columns in terms of percent of \hsize: | |
2098 | % @multitable @columnfractions .25 .3 .45 | |
2099 | % @item ... | |
2100 | % | |
2101 | % Numbers following @columnfractions are the percent of the total | |
2102 | % current hsize to be used for each column. You may use as many | |
2103 | % columns as desired. | |
2104 | ||
2105 | ||
2106 | % Or use a template: | |
2107 | % @multitable {Column 1 template} {Column 2 template} {Column 3 template} | |
2108 | % @item ... | |
2109 | % using the widest term desired in each column. | |
2110 | % | |
2111 | % For those who want to use more than one line's worth of words in | |
2112 | % the preamble, break the line within one argument and it | |
2113 | % will parse correctly, i.e., | |
2114 | % | |
2115 | % @multitable {Column 1 template} {Column 2 template} {Column 3 | |
2116 | % template} | |
2117 | % Not: | |
2118 | % @multitable {Column 1 template} {Column 2 template} | |
2119 | % {Column 3 template} | |
2120 | ||
2121 | % Each new table line starts with @item, each subsequent new column | |
2122 | % starts with @tab. Empty columns may be produced by supplying @tab's | |
2123 | % with nothing between them for as many times as empty columns are needed, | |
2124 | % ie, @tab@tab@tab will produce two empty columns. | |
2125 | ||
2126 | % @item, @tab, @multitable or @end multitable do not need to be on their | |
2127 | % own lines, but it will not hurt if they are. | |
2128 | ||
2129 | % Sample multitable: | |
2130 | ||
2131 | % @multitable {Column 1 template} {Column 2 template} {Column 3 template} | |
2132 | % @item first col stuff @tab second col stuff @tab third col | |
2133 | % @item | |
2134 | % first col stuff | |
2135 | % @tab | |
2136 | % second col stuff | |
2137 | % @tab | |
2138 | % third col | |
2139 | % @item first col stuff @tab second col stuff | |
2140 | % @tab Many paragraphs of text may be used in any column. | |
2141 | % | |
2142 | % They will wrap at the width determined by the template. | |
2143 | % @item@tab@tab This will be in third column. | |
2144 | % @end multitable | |
2145 | ||
2146 | % Default dimensions may be reset by user. | |
2147 | % @multitableparskip is vertical space between paragraphs in table. | |
2148 | % @multitableparindent is paragraph indent in table. | |
2149 | % @multitablecolmargin is horizontal space to be left between columns. | |
2150 | % @multitablelinespace is space to leave between table items, baseline | |
2151 | % to baseline. | |
2152 | % 0pt means it depends on current normal line spacing. | |
2153 | % | |
2154 | \newskip\multitableparskip | |
2155 | \newskip\multitableparindent | |
2156 | \newdimen\multitablecolspace | |
2157 | \newskip\multitablelinespace | |
2158 | \multitableparskip=0pt | |
2159 | \multitableparindent=6pt | |
2160 | \multitablecolspace=12pt | |
2161 | \multitablelinespace=0pt | |
2162 | ||
2163 | % Macros used to set up halign preamble: | |
449f3b6c | 2164 | % |
ff35fedc ILT |
2165 | \let\endsetuptable\relax |
2166 | \def\xendsetuptable{\endsetuptable} | |
2167 | \let\columnfractions\relax | |
2168 | \def\xcolumnfractions{\columnfractions} | |
2169 | \newif\ifsetpercent | |
2170 | ||
449f3b6c AC |
2171 | % #1 is the part of the @columnfraction before the decimal point, which |
2172 | % is presumably either 0 or the empty string (but we don't check, we | |
2173 | % just throw it away). #2 is the decimal part, which we use as the | |
2174 | % percent of \hsize for this column. | |
2175 | \def\pickupwholefraction#1.#2 {% | |
2176 | \global\advance\colcount by 1 | |
2177 | \expandafter\xdef\csname col\the\colcount\endcsname{.#2\hsize}% | |
2178 | \setuptable | |
2179 | } | |
ff35fedc ILT |
2180 | |
2181 | \newcount\colcount | |
449f3b6c AC |
2182 | \def\setuptable#1{% |
2183 | \def\firstarg{#1}% | |
2184 | \ifx\firstarg\xendsetuptable | |
2185 | \let\go = \relax | |
ff35fedc | 2186 | \else |
449f3b6c AC |
2187 | \ifx\firstarg\xcolumnfractions |
2188 | \global\setpercenttrue | |
2189 | \else | |
2190 | \ifsetpercent | |
2191 | \let\go\pickupwholefraction | |
2192 | \else | |
2193 | \global\advance\colcount by 1 | |
2194 | \setbox0=\hbox{#1\unskip }% Add a normal word space as a separator; | |
2195 | % typically that is always in the input, anyway. | |
2196 | \expandafter\xdef\csname col\the\colcount\endcsname{\the\wd0}% | |
2197 | \fi | |
2198 | \fi | |
2199 | \ifx\go\pickupwholefraction | |
2200 | % Put the argument back for the \pickupwholefraction call, so | |
2201 | % we'll always have a period there to be parsed. | |
2202 | \def\go{\pickupwholefraction#1}% | |
ff35fedc | 2203 | \else |
449f3b6c | 2204 | \let\go = \setuptable |
ff35fedc | 2205 | \fi% |
449f3b6c AC |
2206 | \fi |
2207 | \go | |
2208 | } | |
ff35fedc | 2209 | |
449f3b6c AC |
2210 | % This used to have \hskip1sp. But then the space in a template line is |
2211 | % not enough. That is bad. So let's go back to just & until we | |
2212 | % encounter the problem it was intended to solve again. | |
2213 | % --karl, nathan@acm.org, 20apr99. | |
2214 | \def\tab{&} | |
ff35fedc ILT |
2215 | |
2216 | % @multitable ... @end multitable definitions: | |
449f3b6c | 2217 | % |
ff35fedc ILT |
2218 | \def\multitable{\parsearg\dotable} |
2219 | \def\dotable#1{\bgroup | |
2220 | \vskip\parskip | |
2221 | \let\item\crcr | |
2222 | \tolerance=9500 | |
2223 | \hbadness=9500 | |
2224 | \setmultitablespacing | |
2225 | \parskip=\multitableparskip | |
2226 | \parindent=\multitableparindent | |
2227 | \overfullrule=0pt | |
2228 | \global\colcount=0 | |
2229 | \def\Emultitable{\global\setpercentfalse\cr\egroup\egroup}% | |
2230 | % | |
2231 | % To parse everything between @multitable and @item: | |
2232 | \setuptable#1 \endsetuptable | |
2233 | % | |
2234 | % \everycr will reset column counter, \colcount, at the end of | |
2235 | % each line. Every column entry will cause \colcount to advance by one. | |
2236 | % The table preamble | |
2237 | % looks at the current \colcount to find the correct column width. | |
2238 | \everycr{\noalign{% | |
2239 | % | |
2240 | % \filbreak%% keeps underfull box messages off when table breaks over pages. | |
2241 | % Maybe so, but it also creates really weird page breaks when the table | |
2242 | % breaks over pages. Wouldn't \vfil be better? Wait until the problem | |
2243 | % manifests itself, so it can be fixed for real --karl. | |
2244 | \global\colcount=0\relax}}% | |
2245 | % | |
2246 | % This preamble sets up a generic column definition, which will | |
2247 | % be used as many times as user calls for columns. | |
2248 | % \vtop will set a single line and will also let text wrap and | |
2249 | % continue for many paragraphs if desired. | |
2250 | \halign\bgroup&\global\advance\colcount by 1\relax | |
2251 | \multistrut\vtop{\hsize=\expandafter\csname col\the\colcount\endcsname | |
2252 | % | |
2253 | % In order to keep entries from bumping into each other | |
2254 | % we will add a \leftskip of \multitablecolspace to all columns after | |
2255 | % the first one. | |
449f3b6c | 2256 | % |
ff35fedc ILT |
2257 | % If a template has been used, we will add \multitablecolspace |
2258 | % to the width of each template entry. | |
449f3b6c | 2259 | % |
ff35fedc ILT |
2260 | % If the user has set preamble in terms of percent of \hsize we will |
2261 | % use that dimension as the width of the column, and the \leftskip | |
2262 | % will keep entries from bumping into each other. Table will start at | |
2263 | % left margin and final column will justify at right margin. | |
449f3b6c | 2264 | % |
ff35fedc ILT |
2265 | % Make sure we don't inherit \rightskip from the outer environment. |
2266 | \rightskip=0pt | |
2267 | \ifnum\colcount=1 | |
2268 | % The first column will be indented with the surrounding text. | |
2269 | \advance\hsize by\leftskip | |
2270 | \else | |
449f3b6c AC |
2271 | \ifsetpercent \else |
2272 | % If user has not set preamble in terms of percent of \hsize | |
2273 | % we will advance \hsize by \multitablecolspace. | |
2274 | \advance\hsize by \multitablecolspace | |
2275 | \fi | |
2276 | % In either case we will make \leftskip=\multitablecolspace: | |
2277 | \leftskip=\multitablecolspace | |
2278 | \fi | |
2279 | % Ignoring space at the beginning and end avoids an occasional spurious | |
2280 | % blank line, when TeX decides to break the line at the space before the | |
2281 | % box from the multistrut, so the strut ends up on a line by itself. | |
2282 | % For example: | |
2283 | % @multitable @columnfractions .11 .89 | |
2284 | % @item @code{#} | |
2285 | % @tab Legal holiday which is valid in major parts of the whole country. | |
2286 | % Is automatically provided with highlighting sequences respectively marking | |
2287 | % characters. | |
2288 | \noindent\ignorespaces##\unskip\multistrut}\cr | |
2289 | } | |
2290 | ||
2291 | \def\setmultitablespacing{% test to see if user has set \multitablelinespace. | |
2292 | % If so, do nothing. If not, give it an appropriate dimension based on | |
2293 | % current baselineskip. | |
2294 | \ifdim\multitablelinespace=0pt | |
2295 | \setbox0=\vbox{X}\global\multitablelinespace=\the\baselineskip | |
2296 | \global\advance\multitablelinespace by-\ht0 | |
2297 | %% strut to put in table in case some entry doesn't have descenders, | |
2298 | %% to keep lines equally spaced | |
2299 | \let\multistrut = \strut | |
2300 | \else | |
2301 | %% FIXME: what is \box0 supposed to be? | |
2302 | \gdef\multistrut{\vrule height\multitablelinespace depth\dp0 | |
2303 | width0pt\relax} \fi | |
2304 | %% Test to see if parskip is larger than space between lines of | |
2305 | %% table. If not, do nothing. | |
2306 | %% If so, set to same dimension as multitablelinespace. | |
2307 | \ifdim\multitableparskip>\multitablelinespace | |
2308 | \global\multitableparskip=\multitablelinespace | |
2309 | \global\advance\multitableparskip-7pt %% to keep parskip somewhat smaller | |
2310 | %% than skip between lines in the table. | |
2311 | \fi% | |
2312 | \ifdim\multitableparskip=0pt | |
2313 | \global\multitableparskip=\multitablelinespace | |
2314 | \global\advance\multitableparskip-7pt %% to keep parskip somewhat smaller | |
2315 | %% than skip between lines in the table. | |
2316 | \fi} | |
2317 | ||
2318 | ||
2319 | \message{conditionals,} | |
2320 | % Prevent errors for section commands. | |
2321 | % Used in @ignore and in failing conditionals. | |
2322 | \def\ignoresections{% | |
2323 | \let\chapter=\relax | |
2324 | \let\unnumbered=\relax | |
2325 | \let\top=\relax | |
2326 | \let\unnumberedsec=\relax | |
2327 | \let\unnumberedsection=\relax | |
2328 | \let\unnumberedsubsec=\relax | |
2329 | \let\unnumberedsubsection=\relax | |
2330 | \let\unnumberedsubsubsec=\relax | |
2331 | \let\unnumberedsubsubsection=\relax | |
2332 | \let\section=\relax | |
2333 | \let\subsec=\relax | |
2334 | \let\subsubsec=\relax | |
2335 | \let\subsection=\relax | |
2336 | \let\subsubsection=\relax | |
2337 | \let\appendix=\relax | |
2338 | \let\appendixsec=\relax | |
2339 | \let\appendixsection=\relax | |
2340 | \let\appendixsubsec=\relax | |
2341 | \let\appendixsubsection=\relax | |
2342 | \let\appendixsubsubsec=\relax | |
2343 | \let\appendixsubsubsection=\relax | |
2344 | \let\contents=\relax | |
2345 | \let\smallbook=\relax | |
2346 | \let\titlepage=\relax | |
2347 | } | |
2348 | ||
2349 | % Used in nested conditionals, where we have to parse the Texinfo source | |
2350 | % and so want to turn off most commands, in case they are used | |
2351 | % incorrectly. | |
2352 | % | |
2353 | \def\ignoremorecommands{% | |
2354 | \let\defcodeindex = \relax | |
2355 | \let\defcv = \relax | |
2356 | \let\deffn = \relax | |
2357 | \let\deffnx = \relax | |
2358 | \let\defindex = \relax | |
2359 | \let\defivar = \relax | |
2360 | \let\defmac = \relax | |
2361 | \let\defmethod = \relax | |
2362 | \let\defop = \relax | |
2363 | \let\defopt = \relax | |
2364 | \let\defspec = \relax | |
2365 | \let\deftp = \relax | |
2366 | \let\deftypefn = \relax | |
2367 | \let\deftypefun = \relax | |
2368 | \let\deftypeivar = \relax | |
2369 | \let\deftypeop = \relax | |
2370 | \let\deftypevar = \relax | |
2371 | \let\deftypevr = \relax | |
2372 | \let\defun = \relax | |
2373 | \let\defvar = \relax | |
2374 | \let\defvr = \relax | |
2375 | \let\ref = \relax | |
2376 | \let\xref = \relax | |
2377 | \let\printindex = \relax | |
2378 | \let\pxref = \relax | |
2379 | \let\settitle = \relax | |
2380 | \let\setchapternewpage = \relax | |
2381 | \let\setchapterstyle = \relax | |
2382 | \let\everyheading = \relax | |
2383 | \let\evenheading = \relax | |
2384 | \let\oddheading = \relax | |
2385 | \let\everyfooting = \relax | |
2386 | \let\evenfooting = \relax | |
2387 | \let\oddfooting = \relax | |
2388 | \let\headings = \relax | |
2389 | \let\include = \relax | |
2390 | \let\lowersections = \relax | |
2391 | \let\down = \relax | |
2392 | \let\raisesections = \relax | |
2393 | \let\up = \relax | |
2394 | \let\set = \relax | |
2395 | \let\clear = \relax | |
2396 | \let\item = \relax | |
2397 | } | |
2398 | ||
2399 | % Ignore @ignore ... @end ignore. | |
2400 | % | |
2401 | \def\ignore{\doignore{ignore}} | |
2402 | ||
bd48e1a9 AC |
2403 | % Also ignore @ifinfo, @ifhtml, @ifnottex, @html, @menu, |
2404 | % @documentdescription, and @direntry text. | |
449f3b6c AC |
2405 | % |
2406 | \def\ifinfo{\doignore{ifinfo}} | |
2407 | \def\ifhtml{\doignore{ifhtml}} | |
2408 | \def\ifnottex{\doignore{ifnottex}} | |
2409 | \def\html{\doignore{html}} | |
2410 | \def\menu{\doignore{menu}} | |
bd48e1a9 | 2411 | \def\documentdescription{\doignore{documentdescription}} |
449f3b6c AC |
2412 | \def\direntry{\doignore{direntry}} |
2413 | ||
2414 | % @dircategory CATEGORY -- specify a category of the dir file | |
2415 | % which this file should belong to. Ignore this in TeX. | |
2416 | \let\dircategory = \comment | |
2417 | ||
2418 | % Ignore text until a line `@end #1'. | |
2419 | % | |
2420 | \def\doignore#1{\begingroup | |
2421 | % Don't complain about control sequences we have declared \outer. | |
2422 | \ignoresections | |
2423 | % | |
2424 | % Define a command to swallow text until we reach `@end #1'. | |
2425 | % This @ is a catcode 12 token (that is the normal catcode of @ in | |
2426 | % this texinfo.tex file). We change the catcode of @ below to match. | |
2427 | \long\def\doignoretext##1@end #1{\enddoignore}% | |
2428 | % | |
2429 | % Make sure that spaces turn into tokens that match what \doignoretext wants. | |
2430 | \catcode32 = 10 | |
2431 | % | |
2432 | % Ignore braces, too, so mismatched braces don't cause trouble. | |
2433 | \catcode`\{ = 9 | |
2434 | \catcode`\} = 9 | |
2435 | % | |
2436 | % We must not have @c interpreted as a control sequence. | |
2437 | \catcode`\@ = 12 | |
2438 | % | |
2439 | % Make the letter c a comment character so that the rest of the line | |
2440 | % will be ignored. This way, the document can have (for example) | |
2441 | % @c @end ifinfo | |
2442 | % and the @end ifinfo will be properly ignored. | |
2443 | % (We've just changed @ to catcode 12.) | |
2444 | \catcode`\c = 14 | |
2445 | % | |
2446 | % And now expand that command. | |
2447 | \doignoretext | |
2448 | } | |
2449 | ||
2450 | % What we do to finish off ignored text. | |
2451 | % | |
2452 | \def\enddoignore{\endgroup\ignorespaces}% | |
2453 | ||
2454 | \newif\ifwarnedobs\warnedobsfalse | |
2455 | \def\obstexwarn{% | |
2456 | \ifwarnedobs\relax\else | |
2457 | % We need to warn folks that they may have trouble with TeX 3.0. | |
2458 | % This uses \immediate\write16 rather than \message to get newlines. | |
2459 | \immediate\write16{} | |
2460 | \immediate\write16{WARNING: for users of Unix TeX 3.0!} | |
2461 | \immediate\write16{This manual trips a bug in TeX version 3.0 (tex hangs).} | |
2462 | \immediate\write16{If you are running another version of TeX, relax.} | |
2463 | \immediate\write16{If you are running Unix TeX 3.0, kill this TeX process.} | |
2464 | \immediate\write16{ Then upgrade your TeX installation if you can.} | |
2465 | \immediate\write16{ (See ftp://ftp.gnu.org/pub/gnu/TeX.README.)} | |
2466 | \immediate\write16{If you are stuck with version 3.0, run the} | |
2467 | \immediate\write16{ script ``tex3patch'' from the Texinfo distribution} | |
2468 | \immediate\write16{ to use a workaround.} | |
2469 | \immediate\write16{} | |
2470 | \global\warnedobstrue | |
2471 | \fi | |
2472 | } | |
2473 | ||
2474 | % **In TeX 3.0, setting text in \nullfont hangs tex. For a | |
2475 | % workaround (which requires the file ``dummy.tfm'' to be installed), | |
2476 | % uncomment the following line: | |
2477 | %%%%%\font\nullfont=dummy\let\obstexwarn=\relax | |
2478 | ||
2479 | % Ignore text, except that we keep track of conditional commands for | |
2480 | % purposes of nesting, up to an `@end #1' command. | |
2481 | % | |
2482 | \def\nestedignore#1{% | |
2483 | \obstexwarn | |
2484 | % We must actually expand the ignored text to look for the @end | |
2485 | % command, so that nested ignore constructs work. Thus, we put the | |
2486 | % text into a \vbox and then do nothing with the result. To minimize | |
2487 | % the change of memory overflow, we follow the approach outlined on | |
2488 | % page 401 of the TeXbook: make the current font be a dummy font. | |
2489 | % | |
2490 | \setbox0 = \vbox\bgroup | |
2491 | % Don't complain about control sequences we have declared \outer. | |
2492 | \ignoresections | |
2493 | % | |
2494 | % Define `@end #1' to end the box, which will in turn undefine the | |
2495 | % @end command again. | |
2496 | \expandafter\def\csname E#1\endcsname{\egroup\ignorespaces}% | |
2497 | % | |
2498 | % We are going to be parsing Texinfo commands. Most cause no | |
2499 | % trouble when they are used incorrectly, but some commands do | |
2500 | % complicated argument parsing or otherwise get confused, so we | |
2501 | % undefine them. | |
2502 | % | |
2503 | % We can't do anything about stray @-signs, unfortunately; | |
2504 | % they'll produce `undefined control sequence' errors. | |
2505 | \ignoremorecommands | |
2506 | % | |
2507 | % Set the current font to be \nullfont, a TeX primitive, and define | |
2508 | % all the font commands to also use \nullfont. We don't use | |
2509 | % dummy.tfm, as suggested in the TeXbook, because not all sites | |
2510 | % might have that installed. Therefore, math mode will still | |
2511 | % produce output, but that should be an extremely small amount of | |
2512 | % stuff compared to the main input. | |
2513 | % | |
2514 | \nullfont | |
2515 | \let\tenrm=\nullfont \let\tenit=\nullfont \let\tensl=\nullfont | |
2516 | \let\tenbf=\nullfont \let\tentt=\nullfont \let\smallcaps=\nullfont | |
2517 | \let\tensf=\nullfont | |
bd48e1a9 | 2518 | % Similarly for index fonts. |
449f3b6c AC |
2519 | \let\smallrm=\nullfont \let\smallit=\nullfont \let\smallsl=\nullfont |
2520 | \let\smallbf=\nullfont \let\smalltt=\nullfont \let\smallsc=\nullfont | |
2521 | \let\smallsf=\nullfont | |
bd48e1a9 AC |
2522 | % Similarly for smallexample fonts. |
2523 | \let\smallerrm=\nullfont \let\smallerit=\nullfont \let\smallersl=\nullfont | |
2524 | \let\smallerbf=\nullfont \let\smallertt=\nullfont \let\smallersc=\nullfont | |
2525 | \let\smallersf=\nullfont | |
449f3b6c AC |
2526 | % |
2527 | % Don't complain when characters are missing from the fonts. | |
2528 | \tracinglostchars = 0 | |
2529 | % | |
2530 | % Don't bother to do space factor calculations. | |
2531 | \frenchspacing | |
2532 | % | |
2533 | % Don't report underfull hboxes. | |
2534 | \hbadness = 10000 | |
2535 | % | |
2536 | % Do minimal line-breaking. | |
2537 | \pretolerance = 10000 | |
2538 | % | |
2539 | % Do not execute instructions in @tex | |
2540 | \def\tex{\doignore{tex}}% | |
2541 | % Do not execute macro definitions. | |
2542 | % `c' is a comment character, so the word `macro' will get cut off. | |
2543 | \def\macro{\doignore{ma}}% | |
2544 | } | |
2545 | ||
2546 | % @set VAR sets the variable VAR to an empty value. | |
2547 | % @set VAR REST-OF-LINE sets VAR to the value REST-OF-LINE. | |
2548 | % | |
2549 | % Since we want to separate VAR from REST-OF-LINE (which might be | |
2550 | % empty), we can't just use \parsearg; we have to insert a space of our | |
2551 | % own to delimit the rest of the line, and then take it out again if we | |
2552 | % didn't need it. Make sure the catcode of space is correct to avoid | |
2553 | % losing inside @example, for instance. | |
2554 | % | |
2555 | \def\set{\begingroup\catcode` =10 | |
2556 | \catcode`\-=12 \catcode`\_=12 % Allow - and _ in VAR. | |
2557 | \parsearg\setxxx} | |
2558 | \def\setxxx#1{\setyyy#1 \endsetyyy} | |
2559 | \def\setyyy#1 #2\endsetyyy{% | |
2560 | \def\temp{#2}% | |
2561 | \ifx\temp\empty \global\expandafter\let\csname SET#1\endcsname = \empty | |
2562 | \else \setzzz{#1}#2\endsetzzz % Remove the trailing space \setxxx inserted. | |
2563 | \fi | |
2564 | \endgroup | |
2565 | } | |
2566 | % Can't use \xdef to pre-expand #2 and save some time, since \temp or | |
2567 | % \next or other control sequences that we've defined might get us into | |
2568 | % an infinite loop. Consider `@set foo @cite{bar}'. | |
2569 | \def\setzzz#1#2 \endsetzzz{\expandafter\gdef\csname SET#1\endcsname{#2}} | |
2570 | ||
2571 | % @clear VAR clears (i.e., unsets) the variable VAR. | |
2572 | % | |
2573 | \def\clear{\parsearg\clearxxx} | |
2574 | \def\clearxxx#1{\global\expandafter\let\csname SET#1\endcsname=\relax} | |
2575 | ||
2576 | % @value{foo} gets the text saved in variable foo. | |
2577 | { | |
2578 | \catcode`\_ = \active | |
2579 | % | |
2580 | % We might end up with active _ or - characters in the argument if | |
2581 | % we're called from @code, as @code{@value{foo-bar_}}. So \let any | |
2582 | % such active characters to their normal equivalents. | |
2583 | \gdef\value{\begingroup | |
2584 | \catcode`\-=12 \catcode`\_=12 | |
2585 | \indexbreaks \let_\normalunderscore | |
2586 | \valuexxx} | |
2587 | } | |
2588 | \def\valuexxx#1{\expandablevalue{#1}\endgroup} | |
2589 | ||
2590 | % We have this subroutine so that we can handle at least some @value's | |
2591 | % properly in indexes (we \let\value to this in \indexdummies). Ones | |
2592 | % whose names contain - or _ still won't work, but we can't do anything | |
2593 | % about that. The command has to be fully expandable, since the result | |
2594 | % winds up in the index file. This means that if the variable's value | |
2595 | % contains other Texinfo commands, it's almost certain it will fail | |
2596 | % (although perhaps we could fix that with sufficient work to do a | |
2597 | % one-level expansion on the result, instead of complete). | |
2598 | % | |
2599 | \def\expandablevalue#1{% | |
2600 | \expandafter\ifx\csname SET#1\endcsname\relax | |
2601 | {[No value for ``#1'']}% | |
2602 | \else | |
2603 | \csname SET#1\endcsname | |
2604 | \fi | |
2605 | } | |
2606 | ||
2607 | % @ifset VAR ... @end ifset reads the `...' iff VAR has been defined | |
2608 | % with @set. | |
2609 | % | |
2610 | \def\ifset{\parsearg\ifsetxxx} | |
2611 | \def\ifsetxxx #1{% | |
2612 | \expandafter\ifx\csname SET#1\endcsname\relax | |
2613 | \expandafter\ifsetfail | |
2614 | \else | |
2615 | \expandafter\ifsetsucceed | |
2616 | \fi | |
2617 | } | |
2618 | \def\ifsetsucceed{\conditionalsucceed{ifset}} | |
2619 | \def\ifsetfail{\nestedignore{ifset}} | |
2620 | \defineunmatchedend{ifset} | |
2621 | ||
2622 | % @ifclear VAR ... @end ifclear reads the `...' iff VAR has never been | |
2623 | % defined with @set, or has been undefined with @clear. | |
2624 | % | |
2625 | \def\ifclear{\parsearg\ifclearxxx} | |
2626 | \def\ifclearxxx #1{% | |
2627 | \expandafter\ifx\csname SET#1\endcsname\relax | |
2628 | \expandafter\ifclearsucceed | |
2629 | \else | |
2630 | \expandafter\ifclearfail | |
ff35fedc | 2631 | \fi |
ff35fedc | 2632 | } |
449f3b6c AC |
2633 | \def\ifclearsucceed{\conditionalsucceed{ifclear}} |
2634 | \def\ifclearfail{\nestedignore{ifclear}} | |
2635 | \defineunmatchedend{ifclear} | |
ff35fedc | 2636 | |
449f3b6c AC |
2637 | % @iftex, @ifnothtml, @ifnotinfo always succeed; we read the text |
2638 | % following, through the first @end iftex (etc.). Make `@end iftex' | |
2639 | % (etc.) valid only after an @iftex. | |
2640 | % | |
2641 | \def\iftex{\conditionalsucceed{iftex}} | |
2642 | \def\ifnothtml{\conditionalsucceed{ifnothtml}} | |
2643 | \def\ifnotinfo{\conditionalsucceed{ifnotinfo}} | |
2644 | \defineunmatchedend{iftex} | |
2645 | \defineunmatchedend{ifnothtml} | |
2646 | \defineunmatchedend{ifnotinfo} | |
2647 | ||
2648 | % We can't just want to start a group at @iftex (for example) and end it | |
2649 | % at @end iftex, since then @set commands inside the conditional have no | |
2650 | % effect (they'd get reverted at the end of the group). So we must | |
2651 | % define \Eiftex to redefine itself to be its previous value. (We can't | |
2652 | % just define it to fail again with an ``unmatched end'' error, since | |
2653 | % the @ifset might be nested.) | |
2654 | % | |
2655 | \def\conditionalsucceed#1{% | |
2656 | \edef\temp{% | |
2657 | % Remember the current value of \E#1. | |
2658 | \let\nece{prevE#1} = \nece{E#1}% | |
2659 | % | |
2660 | % At the `@end #1', redefine \E#1 to be its previous value. | |
2661 | \def\nece{E#1}{\let\nece{E#1} = \nece{prevE#1}}% | |
2662 | }% | |
2663 | \temp | |
2664 | } | |
2665 | ||
2666 | % We need to expand lots of \csname's, but we don't want to expand the | |
2667 | % control sequences after we've constructed them. | |
2668 | % | |
2669 | \def\nece#1{\expandafter\noexpand\csname#1\endcsname} | |
2670 | ||
2671 | % @defininfoenclose. | |
2672 | \let\definfoenclose=\comment | |
ff35fedc ILT |
2673 | |
2674 | ||
2675 | \message{indexing,} | |
2676 | % Index generation facilities | |
2677 | ||
2678 | % Define \newwrite to be identical to plain tex's \newwrite | |
2679 | % except not \outer, so it can be used within \newindex. | |
2680 | {\catcode`\@=11 | |
2681 | \gdef\newwrite{\alloc@7\write\chardef\sixt@@n}} | |
2682 | ||
2683 | % \newindex {foo} defines an index named foo. | |
2684 | % It automatically defines \fooindex such that | |
2685 | % \fooindex ...rest of line... puts an entry in the index foo. | |
2686 | % It also defines \fooindfile to be the number of the output channel for | |
2687 | % the file that accumulates this index. The file's extension is foo. | |
2688 | % The name of an index should be no more than 2 characters long | |
2689 | % for the sake of vms. | |
2690 | % | |
2691 | \def\newindex#1{% | |
2692 | \iflinks | |
2693 | \expandafter\newwrite \csname#1indfile\endcsname | |
2694 | \openout \csname#1indfile\endcsname \jobname.#1 % Open the file | |
2695 | \fi | |
2696 | \expandafter\xdef\csname#1index\endcsname{% % Define @#1index | |
2697 | \noexpand\doindex{#1}} | |
2698 | } | |
2699 | ||
2700 | % @defindex foo == \newindex{foo} | |
bd48e1a9 | 2701 | % |
ff35fedc ILT |
2702 | \def\defindex{\parsearg\newindex} |
2703 | ||
2704 | % Define @defcodeindex, like @defindex except put all entries in @code. | |
bd48e1a9 AC |
2705 | % |
2706 | \def\defcodeindex{\parsearg\newcodeindex} | |
2707 | % | |
ff35fedc ILT |
2708 | \def\newcodeindex#1{% |
2709 | \iflinks | |
2710 | \expandafter\newwrite \csname#1indfile\endcsname | |
2711 | \openout \csname#1indfile\endcsname \jobname.#1 | |
2712 | \fi | |
2713 | \expandafter\xdef\csname#1index\endcsname{% | |
bd48e1a9 | 2714 | \noexpand\docodeindex{#1}}% |
ff35fedc ILT |
2715 | } |
2716 | ||
ff35fedc ILT |
2717 | |
2718 | % @synindex foo bar makes index foo feed into index bar. | |
2719 | % Do this instead of @defindex foo if you don't want it as a separate index. | |
bd48e1a9 | 2720 | % |
ff35fedc ILT |
2721 | % @syncodeindex foo bar similar, but put all entries made for index foo |
2722 | % inside @code. | |
bd48e1a9 AC |
2723 | % |
2724 | \def\synindex#1 #2 {\dosynindex\doindex{#1}{#2}} | |
2725 | \def\syncodeindex#1 #2 {\dosynindex\docodeindex{#1}{#2}} | |
2726 | ||
2727 | % #1 is \doindex or \docodeindex, #2 the index getting redefined (foo), | |
2728 | % #3 the target index (bar). | |
2729 | \def\dosynindex#1#2#3{% | |
2730 | % Only do \closeout if we haven't already done it, else we'll end up | |
2731 | % closing the target index. | |
2732 | \expandafter \ifx\csname donesynindex#2\endcsname \undefined | |
2733 | % The \closeout helps reduce unnecessary open files; the limit on the | |
2734 | % Acorn RISC OS is a mere 16 files. | |
2735 | \expandafter\closeout\csname#2indfile\endcsname | |
2736 | \expandafter\let\csname\donesynindex#2\endcsname = 1 | |
2737 | \fi | |
2738 | % redefine \fooindfile: | |
2739 | \expandafter\let\expandafter\temp\expandafter=\csname#3indfile\endcsname | |
2740 | \expandafter\let\csname#2indfile\endcsname=\temp | |
2741 | % redefine \fooindex: | |
2742 | \expandafter\xdef\csname#2index\endcsname{\noexpand#1{#3}}% | |
ff35fedc ILT |
2743 | } |
2744 | ||
2745 | % Define \doindex, the driver for all \fooindex macros. | |
2746 | % Argument #1 is generated by the calling \fooindex macro, | |
2747 | % and it is "foo", the name of the index. | |
2748 | ||
2749 | % \doindex just uses \parsearg; it calls \doind for the actual work. | |
2750 | % This is because \doind is more useful to call from other macros. | |
2751 | ||
2752 | % There is also \dosubind {index}{topic}{subtopic} | |
2753 | % which makes an entry in a two-level index such as the operation index. | |
2754 | ||
2755 | \def\doindex#1{\edef\indexname{#1}\parsearg\singleindexer} | |
2756 | \def\singleindexer #1{\doind{\indexname}{#1}} | |
2757 | ||
2758 | % like the previous two, but they put @code around the argument. | |
2759 | \def\docodeindex#1{\edef\indexname{#1}\parsearg\singlecodeindexer} | |
2760 | \def\singlecodeindexer #1{\doind{\indexname}{\code{#1}}} | |
2761 | ||
bd48e1a9 AC |
2762 | % Take care of texinfo commands likely to appear in an index entry. |
2763 | % (Must be a way to avoid doing expansion at all, and thus not have to | |
2764 | % laboriously list every single command here.) | |
2765 | % | |
ff35fedc ILT |
2766 | \def\indexdummies{% |
2767 | \def\ { }% | |
bd48e1a9 AC |
2768 | \def\@{@}% change to @@ when we switch to @ as escape char in aux files. |
2769 | % Need these in case \tex is in effect and \{ is a \delimiter again. | |
2770 | % But can't use \lbracecmd and \rbracecmd because texindex assumes | |
2771 | % braces and backslashes are used only as delimiters. | |
2772 | \let\{ = \mylbrace | |
2773 | \let\} = \myrbrace | |
2774 | \def\_{{\realbackslash _}}% | |
2775 | \normalturnoffactive | |
2776 | % | |
ff35fedc | 2777 | % Take care of the plain tex accent commands. |
bd48e1a9 | 2778 | \def\,##1{\realbackslash ,{##1}}% |
ff35fedc ILT |
2779 | \def\"{\realbackslash "}% |
2780 | \def\`{\realbackslash `}% | |
2781 | \def\'{\realbackslash '}% | |
2782 | \def\^{\realbackslash ^}% | |
2783 | \def\~{\realbackslash ~}% | |
2784 | \def\={\realbackslash =}% | |
2785 | \def\b{\realbackslash b}% | |
2786 | \def\c{\realbackslash c}% | |
2787 | \def\d{\realbackslash d}% | |
2788 | \def\u{\realbackslash u}% | |
2789 | \def\v{\realbackslash v}% | |
2790 | \def\H{\realbackslash H}% | |
bd48e1a9 | 2791 | \def\dotless##1{\realbackslash dotless {##1}}% |
ff35fedc | 2792 | % Take care of the plain tex special European modified letters. |
ff35fedc | 2793 | \def\AA{\realbackslash AA}% |
bd48e1a9 AC |
2794 | \def\AE{\realbackslash AE}% |
2795 | \def\L{\realbackslash L}% | |
2796 | \def\OE{\realbackslash OE}% | |
ff35fedc | 2797 | \def\O{\realbackslash O}% |
bd48e1a9 AC |
2798 | \def\aa{\realbackslash aa}% |
2799 | \def\ae{\realbackslash ae}% | |
ff35fedc | 2800 | \def\l{\realbackslash l}% |
bd48e1a9 AC |
2801 | \def\oe{\realbackslash oe}% |
2802 | \def\o{\realbackslash o}% | |
ff35fedc | 2803 | \def\ss{\realbackslash ss}% |
bd48e1a9 AC |
2804 | % |
2805 | % Although these internals commands shouldn't show up, sometimes they do. | |
ff35fedc | 2806 | \def\bf{\realbackslash bf }% |
bd48e1a9 AC |
2807 | \def\gtr{\realbackslash gtr}% |
2808 | \def\hat{\realbackslash hat}% | |
2809 | \def\less{\realbackslash less}% | |
ff35fedc | 2810 | %\def\rm{\realbackslash rm }% |
ff35fedc | 2811 | \def\sf{\realbackslash sf}% |
bd48e1a9 AC |
2812 | \def\sl{\realbackslash sl }% |
2813 | \def\tclose##1{\realbackslash tclose {##1}}% | |
ff35fedc | 2814 | \def\tt{\realbackslash tt}% |
bd48e1a9 AC |
2815 | % |
2816 | \def\b##1{\realbackslash b {##1}}% | |
2817 | \def\i##1{\realbackslash i {##1}}% | |
2818 | \def\sc##1{\realbackslash sc {##1}}% | |
2819 | \def\t##1{\realbackslash t {##1}}% | |
2820 | \def\r##1{\realbackslash r {##1}}% | |
2821 | % | |
ff35fedc | 2822 | \def\TeX{\realbackslash TeX}% |
bd48e1a9 AC |
2823 | \def\acronym##1{\realbackslash acronym {##1}}% |
2824 | \def\cite##1{\realbackslash cite {##1}}% | |
ff35fedc | 2825 | \def\code##1{\realbackslash code {##1}}% |
449f3b6c | 2826 | \def\command##1{\realbackslash command {##1}}% |
bd48e1a9 AC |
2827 | \def\dfn##1{\realbackslash dfn {##1}}% |
2828 | \def\dots{\realbackslash dots }% | |
2829 | \def\emph##1{\realbackslash emph {##1}}% | |
2830 | \def\env##1{\realbackslash env {##1}}% | |
2831 | \def\file##1{\realbackslash file {##1}}% | |
2832 | \def\kbd##1{\realbackslash kbd {##1}}% | |
2833 | \def\key##1{\realbackslash key {##1}}% | |
2834 | \def\math##1{\realbackslash math {##1}}% | |
449f3b6c | 2835 | \def\option##1{\realbackslash option {##1}}% |
ff35fedc | 2836 | \def\samp##1{\realbackslash samp {##1}}% |
bd48e1a9 AC |
2837 | \def\strong##1{\realbackslash strong {##1}}% |
2838 | \def\uref##1{\realbackslash uref {##1}}% | |
2839 | \def\url##1{\realbackslash url {##1}}% | |
ff35fedc | 2840 | \def\var##1{\realbackslash var {##1}}% |
bd48e1a9 AC |
2841 | \def\w{\realbackslash w }% |
2842 | % | |
2843 | % These math commands don't seem likely to be used in index entries. | |
2844 | \def\copyright{\realbackslash copyright}% | |
2845 | \def\equiv{\realbackslash equiv}% | |
2846 | \def\error{\realbackslash error}% | |
2847 | \def\expansion{\realbackslash expansion}% | |
2848 | \def\point{\realbackslash point}% | |
2849 | \def\print{\realbackslash print}% | |
2850 | \def\result{\realbackslash result}% | |
ff35fedc ILT |
2851 | % |
2852 | % Handle some cases of @value -- where the variable name does not | |
2853 | % contain - or _, and the value does not contain any | |
2854 | % (non-fully-expandable) commands. | |
2855 | \let\value = \expandablevalue | |
2856 | % | |
2857 | \unsepspaces | |
449f3b6c AC |
2858 | % Turn off macro expansion |
2859 | \turnoffmacros | |
ff35fedc ILT |
2860 | } |
2861 | ||
2862 | % If an index command is used in an @example environment, any spaces | |
2863 | % therein should become regular spaces in the raw index file, not the | |
2864 | % expansion of \tie (\\leavevmode \penalty \@M \ ). | |
2865 | {\obeyspaces | |
2866 | \gdef\unsepspaces{\obeyspaces\let =\space}} | |
2867 | ||
2868 | % \indexnofonts no-ops all font-change commands. | |
2869 | % This is used when outputting the strings to sort the index by. | |
2870 | \def\indexdummyfont#1{#1} | |
2871 | \def\indexdummytex{TeX} | |
2872 | \def\indexdummydots{...} | |
2873 | ||
2874 | \def\indexnofonts{% | |
bd48e1a9 AC |
2875 | \def\@{@}% |
2876 | % how to handle braces? | |
2877 | \def\_{\normalunderscore}% | |
2878 | % | |
ff35fedc ILT |
2879 | \let\,=\indexdummyfont |
2880 | \let\"=\indexdummyfont | |
2881 | \let\`=\indexdummyfont | |
2882 | \let\'=\indexdummyfont | |
2883 | \let\^=\indexdummyfont | |
2884 | \let\~=\indexdummyfont | |
2885 | \let\==\indexdummyfont | |
2886 | \let\b=\indexdummyfont | |
2887 | \let\c=\indexdummyfont | |
2888 | \let\d=\indexdummyfont | |
2889 | \let\u=\indexdummyfont | |
2890 | \let\v=\indexdummyfont | |
2891 | \let\H=\indexdummyfont | |
2892 | \let\dotless=\indexdummyfont | |
2893 | % Take care of the plain tex special European modified letters. | |
ff35fedc | 2894 | \def\AA{AA}% |
bd48e1a9 AC |
2895 | \def\AE{AE}% |
2896 | \def\L{L}% | |
2897 | \def\OE{OE}% | |
ff35fedc | 2898 | \def\O{O}% |
bd48e1a9 AC |
2899 | \def\aa{aa}% |
2900 | \def\ae{ae}% | |
ff35fedc | 2901 | \def\l{l}% |
bd48e1a9 AC |
2902 | \def\oe{oe}% |
2903 | \def\o{o}% | |
ff35fedc | 2904 | \def\ss{ss}% |
bd48e1a9 AC |
2905 | % |
2906 | % Don't no-op \tt, since it isn't a user-level command | |
2907 | % and is used in the definitions of the active chars like <, >, |, etc. | |
2908 | % Likewise with the other plain tex font commands. | |
2909 | %\let\tt=\indexdummyfont | |
2910 | % | |
ff35fedc | 2911 | \let\b=\indexdummyfont |
bd48e1a9 AC |
2912 | \let\i=\indexdummyfont |
2913 | \let\r=\indexdummyfont | |
ff35fedc | 2914 | \let\sc=\indexdummyfont |
bd48e1a9 AC |
2915 | \let\t=\indexdummyfont |
2916 | % | |
2917 | \let\TeX=\indexdummytex | |
449f3b6c | 2918 | \let\acronym=\indexdummyfont |
bd48e1a9 AC |
2919 | \let\cite=\indexdummyfont |
2920 | \let\code=\indexdummyfont | |
449f3b6c | 2921 | \let\command=\indexdummyfont |
bd48e1a9 AC |
2922 | \let\dfn=\indexdummyfont |
2923 | \let\dots=\indexdummydots | |
2924 | \let\emph=\indexdummyfont | |
2925 | \let\env=\indexdummyfont | |
ff35fedc | 2926 | \let\file=\indexdummyfont |
ff35fedc ILT |
2927 | \let\kbd=\indexdummyfont |
2928 | \let\key=\indexdummyfont | |
bd48e1a9 AC |
2929 | \let\math=\indexdummyfont |
2930 | \let\option=\indexdummyfont | |
2931 | \let\samp=\indexdummyfont | |
2932 | \let\strong=\indexdummyfont | |
2933 | \let\uref=\indexdummyfont | |
2934 | \let\url=\indexdummyfont | |
ff35fedc | 2935 | \let\var=\indexdummyfont |
bd48e1a9 | 2936 | \let\w=\indexdummyfont |
ff35fedc ILT |
2937 | } |
2938 | ||
2939 | % To define \realbackslash, we must make \ not be an escape. | |
2940 | % We must first make another character (@) an escape | |
2941 | % so we do not become unable to do a definition. | |
2942 | ||
2943 | {\catcode`\@=0 \catcode`\\=\other | |
2944 | @gdef@realbackslash{\}} | |
2945 | ||
2946 | \let\indexbackslash=0 %overridden during \printindex. | |
2947 | \let\SETmarginindex=\relax % put index entries in margin (undocumented)? | |
2948 | ||
2949 | % For \ifx comparisons. | |
2950 | \def\emptymacro{\empty} | |
2951 | ||
2952 | % Most index entries go through here, but \dosubind is the general case. | |
449f3b6c | 2953 | % |
ff35fedc ILT |
2954 | \def\doind#1#2{\dosubind{#1}{#2}\empty} |
2955 | ||
2956 | % Workhorse for all \fooindexes. | |
2957 | % #1 is name of index, #2 is stuff to put there, #3 is subentry -- | |
2958 | % \empty if called from \doind, as we usually are. The main exception | |
2959 | % is with defuns, which call us directly. | |
449f3b6c | 2960 | % |
ff35fedc ILT |
2961 | \def\dosubind#1#2#3{% |
2962 | % Put the index entry in the margin if desired. | |
2963 | \ifx\SETmarginindex\relax\else | |
2964 | \insert\margin{\hbox{\vrule height8pt depth3pt width0pt #2}}% | |
2965 | \fi | |
2966 | {% | |
2967 | \count255=\lastpenalty | |
2968 | {% | |
2969 | \indexdummies % Must do this here, since \bf, etc expand at this stage | |
2970 | \escapechar=`\\ | |
2971 | {% | |
2972 | \let\folio = 0% We will expand all macros now EXCEPT \folio. | |
2973 | \def\rawbackslashxx{\indexbackslash}% \indexbackslash isn't defined now | |
2974 | % so it will be output as is; and it will print as backslash. | |
2975 | % | |
2976 | \def\thirdarg{#3}% | |
2977 | % | |
2978 | % If third arg is present, precede it with space in sort key. | |
2979 | \ifx\thirdarg\emptymacro | |
2980 | \let\subentry = \empty | |
2981 | \else | |
2982 | \def\subentry{ #3}% | |
2983 | \fi | |
2984 | % | |
449f3b6c AC |
2985 | % First process the index entry with all font commands turned |
2986 | % off to get the string to sort by. | |
ff35fedc ILT |
2987 | {\indexnofonts \xdef\indexsorttmp{#2\subentry}}% |
2988 | % | |
449f3b6c | 2989 | % Now the real index entry with the fonts. |
ff35fedc | 2990 | \toks0 = {#2}% |
449f3b6c | 2991 | % |
bd48e1a9 AC |
2992 | % If the third (subentry) arg is present, add it to the index |
2993 | % line to write. | |
449f3b6c | 2994 | \ifx\thirdarg\emptymacro \else |
bd48e1a9 | 2995 | \toks0 = \expandafter{\the\toks0{#3}}% |
449f3b6c AC |
2996 | \fi |
2997 | % | |
bd48e1a9 AC |
2998 | % Set up the complete index entry, with both the sort key and |
2999 | % the original text, including any font commands. We write | |
3000 | % three arguments to \entry to the .?? file (four in the | |
3001 | % subentry case), texindex reduces to two when writing the .??s | |
3002 | % sorted result. | |
ff35fedc ILT |
3003 | \edef\temp{% |
3004 | \write\csname#1indfile\endcsname{% | |
3005 | \realbackslash entry{\indexsorttmp}{\folio}{\the\toks0}}% | |
3006 | }% | |
3007 | % | |
ff35fedc ILT |
3008 | % If a skip is the last thing on the list now, preserve it |
3009 | % by backing up by \lastskip, doing the \write, then inserting | |
3010 | % the skip again. Otherwise, the whatsit generated by the | |
3011 | % \write will make \lastskip zero. The result is that sequences | |
3012 | % like this: | |
3013 | % @end defun | |
3014 | % @tindex whatever | |
3015 | % @defun ... | |
3016 | % will have extra space inserted, because the \medbreak in the | |
3017 | % start of the @defun won't see the skip inserted by the @end of | |
3018 | % the previous defun. | |
449f3b6c | 3019 | % |
ff35fedc ILT |
3020 | % But don't do any of this if we're not in vertical mode. We |
3021 | % don't want to do a \vskip and prematurely end a paragraph. | |
449f3b6c | 3022 | % |
ff35fedc | 3023 | % Avoid page breaks due to these extra skips, too. |
449f3b6c | 3024 | % |
ff35fedc ILT |
3025 | \iflinks |
3026 | \ifvmode | |
3027 | \skip0 = \lastskip | |
3028 | \ifdim\lastskip = 0pt \else \nobreak\vskip-\lastskip \fi | |
3029 | \fi | |
3030 | % | |
3031 | \temp % do the write | |
3032 | % | |
449f3b6c | 3033 | % |
ff35fedc ILT |
3034 | \ifvmode \ifdim\skip0 = 0pt \else \nobreak\vskip\skip0 \fi \fi |
3035 | \fi | |
3036 | }% | |
3037 | }% | |
3038 | \penalty\count255 | |
3039 | }% | |
3040 | } | |
3041 | ||
3042 | % The index entry written in the file actually looks like | |
3043 | % \entry {sortstring}{page}{topic} | |
3044 | % or | |
3045 | % \entry {sortstring}{page}{topic}{subtopic} | |
3046 | % The texindex program reads in these files and writes files | |
3047 | % containing these kinds of lines: | |
3048 | % \initial {c} | |
3049 | % before the first topic whose initial is c | |
3050 | % \entry {topic}{pagelist} | |
3051 | % for a topic that is used without subtopics | |
3052 | % \primary {topic} | |
3053 | % for the beginning of a topic that is used with subtopics | |
3054 | % \secondary {subtopic}{pagelist} | |
3055 | % for each subtopic. | |
3056 | ||
3057 | % Define the user-accessible indexing commands | |
3058 | % @findex, @vindex, @kindex, @cindex. | |
3059 | ||
3060 | \def\findex {\fnindex} | |
3061 | \def\kindex {\kyindex} | |
3062 | \def\cindex {\cpindex} | |
3063 | \def\vindex {\vrindex} | |
3064 | \def\tindex {\tpindex} | |
3065 | \def\pindex {\pgindex} | |
3066 | ||
3067 | \def\cindexsub {\begingroup\obeylines\cindexsub} | |
3068 | {\obeylines % | |
3069 | \gdef\cindexsub "#1" #2^^M{\endgroup % | |
3070 | \dosubind{cp}{#2}{#1}}} | |
3071 | ||
3072 | % Define the macros used in formatting output of the sorted index material. | |
3073 | ||
3074 | % @printindex causes a particular index (the ??s file) to get printed. | |
3075 | % It does not print any chapter heading (usually an @unnumbered). | |
3076 | % | |
3077 | \def\printindex{\parsearg\doprintindex} | |
3078 | \def\doprintindex#1{\begingroup | |
3079 | \dobreak \chapheadingskip{10000}% | |
3080 | % | |
449f3b6c | 3081 | \smallfonts \rm |
ff35fedc ILT |
3082 | \tolerance = 9500 |
3083 | \indexbreaks | |
3084 | % | |
3085 | % See if the index file exists and is nonempty. | |
3086 | % Change catcode of @ here so that if the index file contains | |
3087 | % \initial {@} | |
3088 | % as its first line, TeX doesn't complain about mismatched braces | |
3089 | % (because it thinks @} is a control sequence). | |
3090 | \catcode`\@ = 11 | |
3091 | \openin 1 \jobname.#1s | |
3092 | \ifeof 1 | |
3093 | % \enddoublecolumns gets confused if there is no text in the index, | |
3094 | % and it loses the chapter title and the aux file entries for the | |
3095 | % index. The easiest way to prevent this problem is to make sure | |
3096 | % there is some text. | |
449f3b6c | 3097 | \putwordIndexNonexistent |
ff35fedc ILT |
3098 | \else |
3099 | % | |
3100 | % If the index file exists but is empty, then \openin leaves \ifeof | |
3101 | % false. We have to make TeX try to read something from the file, so | |
3102 | % it can discover if there is anything in it. | |
3103 | \read 1 to \temp | |
3104 | \ifeof 1 | |
449f3b6c | 3105 | \putwordIndexIsEmpty |
ff35fedc ILT |
3106 | \else |
3107 | % Index files are almost Texinfo source, but we use \ as the escape | |
3108 | % character. It would be better to use @, but that's too big a change | |
3109 | % to make right now. | |
3110 | \def\indexbackslash{\rawbackslashxx}% | |
3111 | \catcode`\\ = 0 | |
3112 | \escapechar = `\\ | |
3113 | \begindoublecolumns | |
3114 | \input \jobname.#1s | |
3115 | \enddoublecolumns | |
3116 | \fi | |
3117 | \fi | |
3118 | \closein 1 | |
3119 | \endgroup} | |
3120 | ||
3121 | % These macros are used by the sorted index file itself. | |
3122 | % Change them to control the appearance of the index. | |
3123 | ||
3124 | \def\initial#1{{% | |
3125 | % Some minor font changes for the special characters. | |
3126 | \let\tentt=\sectt \let\tt=\sectt \let\sf=\sectt | |
3127 | % | |
3128 | % Remove any glue we may have, we'll be inserting our own. | |
3129 | \removelastskip | |
449f3b6c | 3130 | % |
ff35fedc ILT |
3131 | % We like breaks before the index initials, so insert a bonus. |
3132 | \penalty -300 | |
3133 | % | |
3134 | % Typeset the initial. Making this add up to a whole number of | |
3135 | % baselineskips increases the chance of the dots lining up from column | |
3136 | % to column. It still won't often be perfect, because of the stretch | |
3137 | % we need before each entry, but it's better. | |
449f3b6c | 3138 | % |
ff35fedc ILT |
3139 | % No shrink because it confuses \balancecolumns. |
3140 | \vskip 1.67\baselineskip plus .5\baselineskip | |
3141 | \leftline{\secbf #1}% | |
3142 | \vskip .33\baselineskip plus .1\baselineskip | |
3143 | % | |
3144 | % Do our best not to break after the initial. | |
3145 | \nobreak | |
3146 | }} | |
3147 | ||
3148 | % This typesets a paragraph consisting of #1, dot leaders, and then #2 | |
3149 | % flush to the right margin. It is used for index and table of contents | |
3150 | % entries. The paragraph is indented by \leftskip. | |
3151 | % | |
3152 | \def\entry#1#2{\begingroup | |
3153 | % | |
3154 | % Start a new paragraph if necessary, so our assignments below can't | |
3155 | % affect previous text. | |
3156 | \par | |
3157 | % | |
3158 | % Do not fill out the last line with white space. | |
3159 | \parfillskip = 0in | |
3160 | % | |
3161 | % No extra space above this paragraph. | |
3162 | \parskip = 0in | |
3163 | % | |
3164 | % Do not prefer a separate line ending with a hyphen to fewer lines. | |
3165 | \finalhyphendemerits = 0 | |
3166 | % | |
3167 | % \hangindent is only relevant when the entry text and page number | |
3168 | % don't both fit on one line. In that case, bob suggests starting the | |
3169 | % dots pretty far over on the line. Unfortunately, a large | |
3170 | % indentation looks wrong when the entry text itself is broken across | |
3171 | % lines. So we use a small indentation and put up with long leaders. | |
3172 | % | |
3173 | % \hangafter is reset to 1 (which is the value we want) at the start | |
3174 | % of each paragraph, so we need not do anything with that. | |
3175 | \hangindent = 2em | |
3176 | % | |
3177 | % When the entry text needs to be broken, just fill out the first line | |
3178 | % with blank space. | |
3179 | \rightskip = 0pt plus1fil | |
3180 | % | |
3181 | % A bit of stretch before each entry for the benefit of balancing columns. | |
3182 | \vskip 0pt plus1pt | |
3183 | % | |
3184 | % Start a ``paragraph'' for the index entry so the line breaking | |
3185 | % parameters we've set above will have an effect. | |
3186 | \noindent | |
3187 | % | |
3188 | % Insert the text of the index entry. TeX will do line-breaking on it. | |
3189 | #1% | |
3190 | % The following is kludged to not output a line of dots in the index if | |
3191 | % there are no page numbers. The next person who breaks this will be | |
3192 | % cursed by a Unix daemon. | |
3193 | \def\tempa{{\rm }}% | |
3194 | \def\tempb{#2}% | |
3195 | \edef\tempc{\tempa}% | |
3196 | \edef\tempd{\tempb}% | |
3197 | \ifx\tempc\tempd\ \else% | |
3198 | % | |
3199 | % If we must, put the page number on a line of its own, and fill out | |
3200 | % this line with blank space. (The \hfil is overwhelmed with the | |
3201 | % fill leaders glue in \indexdotfill if the page number does fit.) | |
3202 | \hfil\penalty50 | |
3203 | \null\nobreak\indexdotfill % Have leaders before the page number. | |
3204 | % | |
3205 | % The `\ ' here is removed by the implicit \unskip that TeX does as | |
3206 | % part of (the primitive) \par. Without it, a spurious underfull | |
3207 | % \hbox ensues. | |
449f3b6c AC |
3208 | \ifpdf |
3209 | \pdfgettoks#2.\ \the\toksA % The page number ends the paragraph. | |
3210 | \else | |
3211 | \ #2% The page number ends the paragraph. | |
3212 | \fi | |
ff35fedc ILT |
3213 | \fi% |
3214 | \par | |
3215 | \endgroup} | |
3216 | ||
3217 | % Like \dotfill except takes at least 1 em. | |
3218 | \def\indexdotfill{\cleaders | |
3219 | \hbox{$\mathsurround=0pt \mkern1.5mu ${\it .}$ \mkern1.5mu$}\hskip 1em plus 1fill} | |
3220 | ||
3221 | \def\primary #1{\line{#1\hfil}} | |
3222 | ||
3223 | \newskip\secondaryindent \secondaryindent=0.5cm | |
bd48e1a9 AC |
3224 | \def\secondary#1#2{{% |
3225 | \parfillskip=0in | |
3226 | \parskip=0in | |
3227 | \hangindent=1in | |
3228 | \hangafter=1 | |
3229 | \noindent\hskip\secondaryindent\hbox{#1}\indexdotfill | |
3230 | \ifpdf | |
3231 | \pdfgettoks#2.\ \the\toksA % The page number ends the paragraph. | |
3232 | \else | |
3233 | #2 | |
3234 | \fi | |
3235 | \par | |
ff35fedc ILT |
3236 | }} |
3237 | ||
3238 | % Define two-column mode, which we use to typeset indexes. | |
3239 | % Adapted from the TeXbook, page 416, which is to say, | |
3240 | % the manmac.tex format used to print the TeXbook itself. | |
3241 | \catcode`\@=11 | |
3242 | ||
3243 | \newbox\partialpage | |
3244 | \newdimen\doublecolumnhsize | |
3245 | ||
3246 | \def\begindoublecolumns{\begingroup % ended by \enddoublecolumns | |
3247 | % Grab any single-column material above us. | |
449f3b6c AC |
3248 | \output = {% |
3249 | % | |
ff35fedc ILT |
3250 | % Here is a possibility not foreseen in manmac: if we accumulate a |
3251 | % whole lot of material, we might end up calling this \output | |
3252 | % routine twice in a row (see the doublecol-lose test, which is | |
3253 | % essentially a couple of indexes with @setchapternewpage off). In | |
449f3b6c AC |
3254 | % that case we just ship out what is in \partialpage with the normal |
3255 | % output routine. Generally, \partialpage will be empty when this | |
3256 | % runs and this will be a no-op. See the indexspread.tex test case. | |
3257 | \ifvoid\partialpage \else | |
3258 | \onepageout{\pagecontents\partialpage}% | |
3259 | \fi | |
ff35fedc | 3260 | % |
449f3b6c AC |
3261 | \global\setbox\partialpage = \vbox{% |
3262 | % Unvbox the main output page. | |
3263 | \unvbox\PAGE | |
3264 | \kern-\topskip \kern\baselineskip | |
3265 | }% | |
3266 | }% | |
3267 | \eject % run that output routine to set \partialpage | |
ff35fedc ILT |
3268 | % |
3269 | % Use the double-column output routine for subsequent pages. | |
3270 | \output = {\doublecolumnout}% | |
3271 | % | |
3272 | % Change the page size parameters. We could do this once outside this | |
3273 | % routine, in each of @smallbook, @afourpaper, and the default 8.5x11 | |
3274 | % format, but then we repeat the same computation. Repeating a couple | |
3275 | % of assignments once per index is clearly meaningless for the | |
3276 | % execution time, so we may as well do it in one place. | |
3277 | % | |
3278 | % First we halve the line length, less a little for the gutter between | |
3279 | % the columns. We compute the gutter based on the line length, so it | |
3280 | % changes automatically with the paper format. The magic constant | |
3281 | % below is chosen so that the gutter has the same value (well, +-<1pt) | |
3282 | % as it did when we hard-coded it. | |
3283 | % | |
3284 | % We put the result in a separate register, \doublecolumhsize, so we | |
3285 | % can restore it in \pagesofar, after \hsize itself has (potentially) | |
3286 | % been clobbered. | |
3287 | % | |
3288 | \doublecolumnhsize = \hsize | |
3289 | \advance\doublecolumnhsize by -.04154\hsize | |
3290 | \divide\doublecolumnhsize by 2 | |
3291 | \hsize = \doublecolumnhsize | |
3292 | % | |
3293 | % Double the \vsize as well. (We don't need a separate register here, | |
3294 | % since nobody clobbers \vsize.) | |
ff35fedc ILT |
3295 | \vsize = 2\vsize |
3296 | } | |
3297 | ||
3298 | % The double-column output routine for all double-column pages except | |
3299 | % the last. | |
449f3b6c | 3300 | % |
ff35fedc ILT |
3301 | \def\doublecolumnout{% |
3302 | \splittopskip=\topskip \splitmaxdepth=\maxdepth | |
3303 | % Get the available space for the double columns -- the normal | |
3304 | % (undoubled) page height minus any material left over from the | |
3305 | % previous page. | |
3306 | \dimen@ = \vsize | |
3307 | \divide\dimen@ by 2 | |
bd48e1a9 | 3308 | \advance\dimen@ by -\ht\partialpage |
ff35fedc ILT |
3309 | % |
3310 | % box0 will be the left-hand column, box2 the right. | |
3311 | \setbox0=\vsplit255 to\dimen@ \setbox2=\vsplit255 to\dimen@ | |
3312 | \onepageout\pagesofar | |
3313 | \unvbox255 | |
3314 | \penalty\outputpenalty | |
3315 | } | |
bd48e1a9 AC |
3316 | % |
3317 | % Re-output the contents of the output page -- any previous material, | |
3318 | % followed by the two boxes we just split, in box0 and box2. | |
ff35fedc | 3319 | \def\pagesofar{% |
ff35fedc ILT |
3320 | \unvbox\partialpage |
3321 | % | |
3322 | \hsize = \doublecolumnhsize | |
3323 | \wd0=\hsize \wd2=\hsize | |
3324 | \hbox to\pagewidth{\box0\hfil\box2}% | |
3325 | } | |
bd48e1a9 AC |
3326 | % |
3327 | % All done with double columns. | |
ff35fedc ILT |
3328 | \def\enddoublecolumns{% |
3329 | \output = {% | |
449f3b6c | 3330 | % Split the last of the double-column material. Leave it on the |
ff35fedc ILT |
3331 | % current page, no automatic page break. |
3332 | \balancecolumns | |
3333 | % | |
3334 | % If we end up splitting too much material for the current page, | |
3335 | % though, there will be another page break right after this \output | |
3336 | % invocation ends. Having called \balancecolumns once, we do not | |
3337 | % want to call it again. Therefore, reset \output to its normal | |
3338 | % definition right away. (We hope \balancecolumns will never be | |
3339 | % called on to balance too much material, but if it is, this makes | |
3340 | % the output somewhat more palatable.) | |
3341 | \global\output = {\onepageout{\pagecontents\PAGE}}% | |
ff35fedc ILT |
3342 | }% |
3343 | \eject | |
3344 | \endgroup % started in \begindoublecolumns | |
449f3b6c AC |
3345 | % |
3346 | % \pagegoal was set to the doubled \vsize above, since we restarted | |
3347 | % the current page. We're now back to normal single-column | |
3348 | % typesetting, so reset \pagegoal to the normal \vsize (after the | |
3349 | % \endgroup where \vsize got restored). | |
3350 | \pagegoal = \vsize | |
ff35fedc | 3351 | } |
bd48e1a9 AC |
3352 | % |
3353 | % Called at the end of the double column material. | |
ff35fedc | 3354 | \def\balancecolumns{% |
ff35fedc ILT |
3355 | \setbox0 = \vbox{\unvbox255}% like \box255 but more efficient, see p.120. |
3356 | \dimen@ = \ht0 | |
3357 | \advance\dimen@ by \topskip | |
3358 | \advance\dimen@ by-\baselineskip | |
3359 | \divide\dimen@ by 2 % target to split to | |
3360 | %debug\message{final 2-column material height=\the\ht0, target=\the\dimen@.}% | |
3361 | \splittopskip = \topskip | |
3362 | % Loop until we get a decent breakpoint. | |
3363 | {% | |
3364 | \vbadness = 10000 | |
3365 | \loop | |
3366 | \global\setbox3 = \copy0 | |
3367 | \global\setbox1 = \vsplit3 to \dimen@ | |
3368 | \ifdim\ht3>\dimen@ | |
3369 | \global\advance\dimen@ by 1pt | |
3370 | \repeat | |
3371 | }% | |
3372 | %debug\message{split to \the\dimen@, column heights: \the\ht1, \the\ht3.}% | |
3373 | \setbox0=\vbox to\dimen@{\unvbox1}% | |
3374 | \setbox2=\vbox to\dimen@{\unvbox3}% | |
3375 | % | |
3376 | \pagesofar | |
3377 | } | |
3378 | \catcode`\@ = \other | |
3379 | ||
3380 | ||
3381 | \message{sectioning,} | |
449f3b6c | 3382 | % Chapters, sections, etc. |
ff35fedc ILT |
3383 | |
3384 | \newcount\chapno | |
3385 | \newcount\secno \secno=0 | |
3386 | \newcount\subsecno \subsecno=0 | |
3387 | \newcount\subsubsecno \subsubsecno=0 | |
3388 | ||
3389 | % This counter is funny since it counts through charcodes of letters A, B, ... | |
3390 | \newcount\appendixno \appendixno = `\@ | |
449f3b6c AC |
3391 | % \def\appendixletter{\char\the\appendixno} |
3392 | % We do the following for the sake of pdftex, which needs the actual | |
3393 | % letter in the expansion, not just typeset. | |
3394 | \def\appendixletter{% | |
3395 | \ifnum\appendixno=`A A% | |
3396 | \else\ifnum\appendixno=`B B% | |
3397 | \else\ifnum\appendixno=`C C% | |
3398 | \else\ifnum\appendixno=`D D% | |
3399 | \else\ifnum\appendixno=`E E% | |
3400 | \else\ifnum\appendixno=`F F% | |
3401 | \else\ifnum\appendixno=`G G% | |
3402 | \else\ifnum\appendixno=`H H% | |
3403 | \else\ifnum\appendixno=`I I% | |
3404 | \else\ifnum\appendixno=`J J% | |
3405 | \else\ifnum\appendixno=`K K% | |
3406 | \else\ifnum\appendixno=`L L% | |
3407 | \else\ifnum\appendixno=`M M% | |
3408 | \else\ifnum\appendixno=`N N% | |
3409 | \else\ifnum\appendixno=`O O% | |
3410 | \else\ifnum\appendixno=`P P% | |
3411 | \else\ifnum\appendixno=`Q Q% | |
3412 | \else\ifnum\appendixno=`R R% | |
3413 | \else\ifnum\appendixno=`S S% | |
3414 | \else\ifnum\appendixno=`T T% | |
3415 | \else\ifnum\appendixno=`U U% | |
3416 | \else\ifnum\appendixno=`V V% | |
3417 | \else\ifnum\appendixno=`W W% | |
3418 | \else\ifnum\appendixno=`X X% | |
3419 | \else\ifnum\appendixno=`Y Y% | |
3420 | \else\ifnum\appendixno=`Z Z% | |
3421 | % The \the is necessary, despite appearances, because \appendixletter is | |
3422 | % expanded while writing the .toc file. \char\appendixno is not | |
3423 | % expandable, thus it is written literally, thus all appendixes come out | |
3424 | % with the same letter (or @) in the toc without it. | |
3425 | \else\char\the\appendixno | |
3426 | \fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi | |
3427 | \fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi} | |
ff35fedc ILT |
3428 | |
3429 | % Each @chapter defines this as the name of the chapter. | |
3430 | % page headings and footings can use it. @section does likewise. | |
3431 | \def\thischapter{} | |
3432 | \def\thissection{} | |
3433 | ||
3434 | \newcount\absseclevel % used to calculate proper heading level | |
3435 | \newcount\secbase\secbase=0 % @raise/lowersections modify this count | |
3436 | ||
3437 | % @raisesections: treat @section as chapter, @subsection as section, etc. | |
3438 | \def\raisesections{\global\advance\secbase by -1} | |
3439 | \let\up=\raisesections % original BFox name | |
3440 | ||
3441 | % @lowersections: treat @chapter as section, @section as subsection, etc. | |
3442 | \def\lowersections{\global\advance\secbase by 1} | |
3443 | \let\down=\lowersections % original BFox name | |
3444 | ||
3445 | % Choose a numbered-heading macro | |
3446 | % #1 is heading level if unmodified by @raisesections or @lowersections | |
3447 | % #2 is text for heading | |
3448 | \def\numhead#1#2{\absseclevel=\secbase\advance\absseclevel by #1 | |
3449 | \ifcase\absseclevel | |
3450 | \chapterzzz{#2} | |
3451 | \or | |
3452 | \seczzz{#2} | |
3453 | \or | |
3454 | \numberedsubseczzz{#2} | |
3455 | \or | |
3456 | \numberedsubsubseczzz{#2} | |
3457 | \else | |
3458 | \ifnum \absseclevel<0 | |
3459 | \chapterzzz{#2} | |
3460 | \else | |
3461 | \numberedsubsubseczzz{#2} | |
3462 | \fi | |
3463 | \fi | |
3464 | } | |
3465 | ||
3466 | % like \numhead, but chooses appendix heading levels | |
3467 | \def\apphead#1#2{\absseclevel=\secbase\advance\absseclevel by #1 | |
3468 | \ifcase\absseclevel | |
3469 | \appendixzzz{#2} | |
3470 | \or | |
3471 | \appendixsectionzzz{#2} | |
3472 | \or | |
3473 | \appendixsubseczzz{#2} | |
3474 | \or | |
3475 | \appendixsubsubseczzz{#2} | |
3476 | \else | |
3477 | \ifnum \absseclevel<0 | |
3478 | \appendixzzz{#2} | |
3479 | \else | |
3480 | \appendixsubsubseczzz{#2} | |
3481 | \fi | |
3482 | \fi | |
3483 | } | |
3484 | ||
3485 | % like \numhead, but chooses numberless heading levels | |
3486 | \def\unnmhead#1#2{\absseclevel=\secbase\advance\absseclevel by #1 | |
3487 | \ifcase\absseclevel | |
3488 | \unnumberedzzz{#2} | |
3489 | \or | |
3490 | \unnumberedseczzz{#2} | |
3491 | \or | |
3492 | \unnumberedsubseczzz{#2} | |
3493 | \or | |
3494 | \unnumberedsubsubseczzz{#2} | |
3495 | \else | |
3496 | \ifnum \absseclevel<0 | |
3497 | \unnumberedzzz{#2} | |
3498 | \else | |
3499 | \unnumberedsubsubseczzz{#2} | |
3500 | \fi | |
3501 | \fi | |
3502 | } | |
3503 | ||
3504 | % @chapter, @appendix, @unnumbered. | |
3505 | \def\thischaptername{No Chapter Title} | |
3506 | \outer\def\chapter{\parsearg\chapteryyy} | |
3507 | \def\chapteryyy #1{\numhead0{#1}} % normally numhead0 calls chapterzzz | |
3508 | \def\chapterzzz #1{% | |
3509 | \secno=0 \subsecno=0 \subsubsecno=0 | |
3510 | \global\advance \chapno by 1 \message{\putwordChapter\space \the\chapno}% | |
3511 | \chapmacro {#1}{\the\chapno}% | |
3512 | \gdef\thissection{#1}% | |
3513 | \gdef\thischaptername{#1}% | |
3514 | % We don't substitute the actual chapter name into \thischapter | |
3515 | % because we don't want its macros evaluated now. | |
3516 | \xdef\thischapter{\putwordChapter{} \the\chapno: \noexpand\thischaptername}% | |
3517 | \toks0 = {#1}% | |
3518 | \edef\temp{\noexpand\writetocentry{\realbackslash chapentry{\the\toks0}% | |
3519 | {\the\chapno}}}% | |
3520 | \temp | |
3521 | \donoderef | |
3522 | \global\let\section = \numberedsec | |
3523 | \global\let\subsection = \numberedsubsec | |
3524 | \global\let\subsubsection = \numberedsubsubsec | |
3525 | } | |
3526 | ||
3527 | \outer\def\appendix{\parsearg\appendixyyy} | |
3528 | \def\appendixyyy #1{\apphead0{#1}} % normally apphead0 calls appendixzzz | |
3529 | \def\appendixzzz #1{% | |
3530 | \secno=0 \subsecno=0 \subsubsecno=0 | |
3531 | \global\advance \appendixno by 1 | |
3532 | \message{\putwordAppendix\space \appendixletter}% | |
3533 | \chapmacro {#1}{\putwordAppendix{} \appendixletter}% | |
3534 | \gdef\thissection{#1}% | |
3535 | \gdef\thischaptername{#1}% | |
3536 | \xdef\thischapter{\putwordAppendix{} \appendixletter: \noexpand\thischaptername}% | |
3537 | \toks0 = {#1}% | |
bd48e1a9 AC |
3538 | \edef\temp{\noexpand\writetocentry{\realbackslash appendixentry{\the\toks0}% |
3539 | {\appendixletter}}}% | |
ff35fedc ILT |
3540 | \temp |
3541 | \appendixnoderef | |
3542 | \global\let\section = \appendixsec | |
3543 | \global\let\subsection = \appendixsubsec | |
3544 | \global\let\subsubsection = \appendixsubsubsec | |
3545 | } | |
3546 | ||
3547 | % @centerchap is like @unnumbered, but the heading is centered. | |
3548 | \outer\def\centerchap{\parsearg\centerchapyyy} | |
3549 | \def\centerchapyyy #1{{\let\unnumbchapmacro=\centerchapmacro \unnumberedyyy{#1}}} | |
3550 | ||
3551 | % @top is like @unnumbered. | |
3552 | \outer\def\top{\parsearg\unnumberedyyy} | |
3553 | ||
3554 | \outer\def\unnumbered{\parsearg\unnumberedyyy} | |
3555 | \def\unnumberedyyy #1{\unnmhead0{#1}} % normally unnmhead0 calls unnumberedzzz | |
3556 | \def\unnumberedzzz #1{% | |
3557 | \secno=0 \subsecno=0 \subsubsecno=0 | |
3558 | % | |
3559 | % This used to be simply \message{#1}, but TeX fully expands the | |
3560 | % argument to \message. Therefore, if #1 contained @-commands, TeX | |
3561 | % expanded them. For example, in `@unnumbered The @cite{Book}', TeX | |
3562 | % expanded @cite (which turns out to cause errors because \cite is meant | |
3563 | % to be executed, not expanded). | |
3564 | % | |
3565 | % Anyway, we don't want the fully-expanded definition of @cite to appear | |
3566 | % as a result of the \message, we just want `@cite' itself. We use | |
3567 | % \the<toks register> to achieve this: TeX expands \the<toks> only once, | |
3568 | % simply yielding the contents of <toks register>. (We also do this for | |
3569 | % the toc entries.) | |
3570 | \toks0 = {#1}\message{(\the\toks0)}% | |
3571 | % | |
3572 | \unnumbchapmacro {#1}% | |
3573 | \gdef\thischapter{#1}\gdef\thissection{#1}% | |
3574 | \toks0 = {#1}% | |
3575 | \edef\temp{\noexpand\writetocentry{\realbackslash unnumbchapentry{\the\toks0}}}% | |
3576 | \temp | |
3577 | \unnumbnoderef | |
3578 | \global\let\section = \unnumberedsec | |
3579 | \global\let\subsection = \unnumberedsubsec | |
3580 | \global\let\subsubsection = \unnumberedsubsubsec | |
3581 | } | |
3582 | ||
3583 | % Sections. | |
3584 | \outer\def\numberedsec{\parsearg\secyyy} | |
3585 | \def\secyyy #1{\numhead1{#1}} % normally calls seczzz | |
3586 | \def\seczzz #1{% | |
3587 | \subsecno=0 \subsubsecno=0 \global\advance \secno by 1 % | |
3588 | \gdef\thissection{#1}\secheading {#1}{\the\chapno}{\the\secno}% | |
3589 | \toks0 = {#1}% | |
3590 | \edef\temp{\noexpand\writetocentry{\realbackslash secentry{\the\toks0}% | |
3591 | {\the\chapno}{\the\secno}}}% | |
3592 | \temp | |
3593 | \donoderef | |
3594 | \nobreak | |
3595 | } | |
3596 | ||
3597 | \outer\def\appendixsection{\parsearg\appendixsecyyy} | |
3598 | \outer\def\appendixsec{\parsearg\appendixsecyyy} | |
3599 | \def\appendixsecyyy #1{\apphead1{#1}} % normally calls appendixsectionzzz | |
3600 | \def\appendixsectionzzz #1{% | |
3601 | \subsecno=0 \subsubsecno=0 \global\advance \secno by 1 % | |
3602 | \gdef\thissection{#1}\secheading {#1}{\appendixletter}{\the\secno}% | |
3603 | \toks0 = {#1}% | |
3604 | \edef\temp{\noexpand\writetocentry{\realbackslash secentry{\the\toks0}% | |
3605 | {\appendixletter}{\the\secno}}}% | |
3606 | \temp | |
3607 | \appendixnoderef | |
3608 | \nobreak | |
3609 | } | |
3610 | ||
3611 | \outer\def\unnumberedsec{\parsearg\unnumberedsecyyy} | |
3612 | \def\unnumberedsecyyy #1{\unnmhead1{#1}} % normally calls unnumberedseczzz | |
3613 | \def\unnumberedseczzz #1{% | |
3614 | \plainsecheading {#1}\gdef\thissection{#1}% | |
3615 | \toks0 = {#1}% | |
3616 | \edef\temp{\noexpand\writetocentry{\realbackslash unnumbsecentry{\the\toks0}}}% | |
3617 | \temp | |
3618 | \unnumbnoderef | |
3619 | \nobreak | |
3620 | } | |
3621 | ||
3622 | % Subsections. | |
3623 | \outer\def\numberedsubsec{\parsearg\numberedsubsecyyy} | |
3624 | \def\numberedsubsecyyy #1{\numhead2{#1}} % normally calls numberedsubseczzz | |
3625 | \def\numberedsubseczzz #1{% | |
3626 | \gdef\thissection{#1}\subsubsecno=0 \global\advance \subsecno by 1 % | |
3627 | \subsecheading {#1}{\the\chapno}{\the\secno}{\the\subsecno}% | |
3628 | \toks0 = {#1}% | |
3629 | \edef\temp{\noexpand\writetocentry{\realbackslash subsecentry{\the\toks0}% | |
3630 | {\the\chapno}{\the\secno}{\the\subsecno}}}% | |
3631 | \temp | |
3632 | \donoderef | |
3633 | \nobreak | |
3634 | } | |
3635 | ||
3636 | \outer\def\appendixsubsec{\parsearg\appendixsubsecyyy} | |
3637 | \def\appendixsubsecyyy #1{\apphead2{#1}} % normally calls appendixsubseczzz | |
3638 | \def\appendixsubseczzz #1{% | |
3639 | \gdef\thissection{#1}\subsubsecno=0 \global\advance \subsecno by 1 % | |
3640 | \subsecheading {#1}{\appendixletter}{\the\secno}{\the\subsecno}% | |
3641 | \toks0 = {#1}% | |
3642 | \edef\temp{\noexpand\writetocentry{\realbackslash subsecentry{\the\toks0}% | |
3643 | {\appendixletter}{\the\secno}{\the\subsecno}}}% | |
3644 | \temp | |
3645 | \appendixnoderef | |
3646 | \nobreak | |
3647 | } | |
3648 | ||
3649 | \outer\def\unnumberedsubsec{\parsearg\unnumberedsubsecyyy} | |
3650 | \def\unnumberedsubsecyyy #1{\unnmhead2{#1}} %normally calls unnumberedsubseczzz | |
3651 | \def\unnumberedsubseczzz #1{% | |
3652 | \plainsubsecheading {#1}\gdef\thissection{#1}% | |
3653 | \toks0 = {#1}% | |
3654 | \edef\temp{\noexpand\writetocentry{\realbackslash unnumbsubsecentry% | |
3655 | {\the\toks0}}}% | |
3656 | \temp | |
3657 | \unnumbnoderef | |
3658 | \nobreak | |
3659 | } | |
3660 | ||
3661 | % Subsubsections. | |
3662 | \outer\def\numberedsubsubsec{\parsearg\numberedsubsubsecyyy} | |
3663 | \def\numberedsubsubsecyyy #1{\numhead3{#1}} % normally numberedsubsubseczzz | |
3664 | \def\numberedsubsubseczzz #1{% | |
3665 | \gdef\thissection{#1}\global\advance \subsubsecno by 1 % | |
3666 | \subsubsecheading {#1} | |
3667 | {\the\chapno}{\the\secno}{\the\subsecno}{\the\subsubsecno}% | |
3668 | \toks0 = {#1}% | |
3669 | \edef\temp{\noexpand\writetocentry{\realbackslash subsubsecentry{\the\toks0}% | |
3670 | {\the\chapno}{\the\secno}{\the\subsecno}{\the\subsubsecno}}}% | |
3671 | \temp | |
3672 | \donoderef | |
3673 | \nobreak | |
3674 | } | |
3675 | ||
3676 | \outer\def\appendixsubsubsec{\parsearg\appendixsubsubsecyyy} | |
3677 | \def\appendixsubsubsecyyy #1{\apphead3{#1}} % normally appendixsubsubseczzz | |
3678 | \def\appendixsubsubseczzz #1{% | |
3679 | \gdef\thissection{#1}\global\advance \subsubsecno by 1 % | |
3680 | \subsubsecheading {#1} | |
3681 | {\appendixletter}{\the\secno}{\the\subsecno}{\the\subsubsecno}% | |
3682 | \toks0 = {#1}% | |
3683 | \edef\temp{\noexpand\writetocentry{\realbackslash subsubsecentry{\the\toks0}% | |
3684 | {\appendixletter}{\the\secno}{\the\subsecno}{\the\subsubsecno}}}% | |
3685 | \temp | |
3686 | \appendixnoderef | |
3687 | \nobreak | |
3688 | } | |
3689 | ||
3690 | \outer\def\unnumberedsubsubsec{\parsearg\unnumberedsubsubsecyyy} | |
3691 | \def\unnumberedsubsubsecyyy #1{\unnmhead3{#1}} %normally unnumberedsubsubseczzz | |
3692 | \def\unnumberedsubsubseczzz #1{% | |
3693 | \plainsubsubsecheading {#1}\gdef\thissection{#1}% | |
3694 | \toks0 = {#1}% | |
3695 | \edef\temp{\noexpand\writetocentry{\realbackslash unnumbsubsubsecentry% | |
3696 | {\the\toks0}}}% | |
3697 | \temp | |
3698 | \unnumbnoderef | |
3699 | \nobreak | |
3700 | } | |
3701 | ||
3702 | % These are variants which are not "outer", so they can appear in @ifinfo. | |
3703 | % Actually, they should now be obsolete; ordinary section commands should work. | |
3704 | \def\infotop{\parsearg\unnumberedzzz} | |
3705 | \def\infounnumbered{\parsearg\unnumberedzzz} | |
3706 | \def\infounnumberedsec{\parsearg\unnumberedseczzz} | |
3707 | \def\infounnumberedsubsec{\parsearg\unnumberedsubseczzz} | |
3708 | \def\infounnumberedsubsubsec{\parsearg\unnumberedsubsubseczzz} | |
3709 | ||
3710 | \def\infoappendix{\parsearg\appendixzzz} | |
3711 | \def\infoappendixsec{\parsearg\appendixseczzz} | |
3712 | \def\infoappendixsubsec{\parsearg\appendixsubseczzz} | |
3713 | \def\infoappendixsubsubsec{\parsearg\appendixsubsubseczzz} | |
3714 | ||
3715 | \def\infochapter{\parsearg\chapterzzz} | |
3716 | \def\infosection{\parsearg\sectionzzz} | |
3717 | \def\infosubsection{\parsearg\subsectionzzz} | |
3718 | \def\infosubsubsection{\parsearg\subsubsectionzzz} | |
3719 | ||
3720 | % These macros control what the section commands do, according | |
3721 | % to what kind of chapter we are in (ordinary, appendix, or unnumbered). | |
3722 | % Define them by default for a numbered chapter. | |
3723 | \global\let\section = \numberedsec | |
3724 | \global\let\subsection = \numberedsubsec | |
3725 | \global\let\subsubsection = \numberedsubsubsec | |
3726 | ||
3727 | % Define @majorheading, @heading and @subheading | |
3728 | ||
3729 | % NOTE on use of \vbox for chapter headings, section headings, and such: | |
3730 | % 1) We use \vbox rather than the earlier \line to permit | |
3731 | % overlong headings to fold. | |
3732 | % 2) \hyphenpenalty is set to 10000 because hyphenation in a | |
3733 | % heading is obnoxious; this forbids it. | |
3734 | % 3) Likewise, headings look best if no \parindent is used, and | |
3735 | % if justification is not attempted. Hence \raggedright. | |
3736 | ||
3737 | ||
3738 | \def\majorheading{\parsearg\majorheadingzzz} | |
3739 | \def\majorheadingzzz #1{% | |
3740 | {\advance\chapheadingskip by 10pt \chapbreak }% | |
3741 | {\chapfonts \vbox{\hyphenpenalty=10000\tolerance=5000 | |
3742 | \parindent=0pt\raggedright | |
3743 | \rm #1\hfill}}\bigskip \par\penalty 200} | |
3744 | ||
3745 | \def\chapheading{\parsearg\chapheadingzzz} | |
3746 | \def\chapheadingzzz #1{\chapbreak % | |
3747 | {\chapfonts \vbox{\hyphenpenalty=10000\tolerance=5000 | |
3748 | \parindent=0pt\raggedright | |
3749 | \rm #1\hfill}}\bigskip \par\penalty 200} | |
3750 | ||
3751 | % @heading, @subheading, @subsubheading. | |
3752 | \def\heading{\parsearg\plainsecheading} | |
3753 | \def\subheading{\parsearg\plainsubsecheading} | |
3754 | \def\subsubheading{\parsearg\plainsubsubsecheading} | |
3755 | ||
3756 | % These macros generate a chapter, section, etc. heading only | |
3757 | % (including whitespace, linebreaking, etc. around it), | |
3758 | % given all the information in convenient, parsed form. | |
3759 | ||
3760 | %%% Args are the skip and penalty (usually negative) | |
3761 | \def\dobreak#1#2{\par\ifdim\lastskip<#1\removelastskip\penalty#2\vskip#1\fi} | |
3762 | ||
3763 | \def\setchapterstyle #1 {\csname CHAPF#1\endcsname} | |
3764 | ||
3765 | %%% Define plain chapter starts, and page on/off switching for it | |
3766 | % Parameter controlling skip before chapter headings (if needed) | |
3767 | ||
3768 | \newskip\chapheadingskip | |
3769 | ||
3770 | \def\chapbreak{\dobreak \chapheadingskip {-4000}} | |
3771 | \def\chappager{\par\vfill\supereject} | |
3772 | \def\chapoddpage{\chappager \ifodd\pageno \else \hbox to 0pt{} \chappager\fi} | |
3773 | ||
3774 | \def\setchapternewpage #1 {\csname CHAPPAG#1\endcsname} | |
3775 | ||
3776 | \def\CHAPPAGoff{% | |
3777 | \global\let\contentsalignmacro = \chappager | |
3778 | \global\let\pchapsepmacro=\chapbreak | |
3779 | \global\let\pagealignmacro=\chappager} | |
3780 | ||
3781 | \def\CHAPPAGon{% | |
3782 | \global\let\contentsalignmacro = \chappager | |
3783 | \global\let\pchapsepmacro=\chappager | |
3784 | \global\let\pagealignmacro=\chappager | |
3785 | \global\def\HEADINGSon{\HEADINGSsingle}} | |
3786 | ||
3787 | \def\CHAPPAGodd{ | |
3788 | \global\let\contentsalignmacro = \chapoddpage | |
3789 | \global\let\pchapsepmacro=\chapoddpage | |
3790 | \global\let\pagealignmacro=\chapoddpage | |
3791 | \global\def\HEADINGSon{\HEADINGSdouble}} | |
3792 | ||
3793 | \CHAPPAGon | |
3794 | ||
3795 | \def\CHAPFplain{ | |
3796 | \global\let\chapmacro=\chfplain | |
3797 | \global\let\unnumbchapmacro=\unnchfplain | |
3798 | \global\let\centerchapmacro=\centerchfplain} | |
3799 | ||
3800 | % Plain chapter opening. | |
3801 | % #1 is the text, #2 the chapter number or empty if unnumbered. | |
3802 | \def\chfplain#1#2{% | |
3803 | \pchapsepmacro | |
3804 | {% | |
3805 | \chapfonts \rm | |
3806 | \def\chapnum{#2}% | |
3807 | \setbox0 = \hbox{#2\ifx\chapnum\empty\else\enspace\fi}% | |
3808 | \vbox{\hyphenpenalty=10000 \tolerance=5000 \parindent=0pt \raggedright | |
3809 | \hangindent = \wd0 \centerparametersmaybe | |
3810 | \unhbox0 #1\par}% | |
3811 | }% | |
3812 | \nobreak\bigskip % no page break after a chapter title | |
3813 | \nobreak | |
3814 | } | |
3815 | ||
3816 | % Plain opening for unnumbered. | |
3817 | \def\unnchfplain#1{\chfplain{#1}{}} | |
3818 | ||
3819 | % @centerchap -- centered and unnumbered. | |
3820 | \let\centerparametersmaybe = \relax | |
3821 | \def\centerchfplain#1{{% | |
3822 | \def\centerparametersmaybe{% | |
3823 | \advance\rightskip by 3\rightskip | |
3824 | \leftskip = \rightskip | |
3825 | \parfillskip = 0pt | |
3826 | }% | |
3827 | \chfplain{#1}{}% | |
3828 | }} | |
3829 | ||
3830 | \CHAPFplain % The default | |
3831 | ||
3832 | \def\unnchfopen #1{% | |
3833 | \chapoddpage {\chapfonts \vbox{\hyphenpenalty=10000\tolerance=5000 | |
3834 | \parindent=0pt\raggedright | |
3835 | \rm #1\hfill}}\bigskip \par\nobreak | |
3836 | } | |
3837 | ||
3838 | \def\chfopen #1#2{\chapoddpage {\chapfonts | |
3839 | \vbox to 3in{\vfil \hbox to\hsize{\hfil #2} \hbox to\hsize{\hfil #1} \vfil}}% | |
3840 | \par\penalty 5000 % | |
3841 | } | |
3842 | ||
3843 | \def\centerchfopen #1{% | |
3844 | \chapoddpage {\chapfonts \vbox{\hyphenpenalty=10000\tolerance=5000 | |
3845 | \parindent=0pt | |
3846 | \hfill {\rm #1}\hfill}}\bigskip \par\nobreak | |
3847 | } | |
3848 | ||
3849 | \def\CHAPFopen{ | |
3850 | \global\let\chapmacro=\chfopen | |
3851 | \global\let\unnumbchapmacro=\unnchfopen | |
3852 | \global\let\centerchapmacro=\centerchfopen} | |
3853 | ||
3854 | ||
3855 | % Section titles. | |
3856 | \newskip\secheadingskip | |
3857 | \def\secheadingbreak{\dobreak \secheadingskip {-1000}} | |
3858 | \def\secheading#1#2#3{\sectionheading{sec}{#2.#3}{#1}} | |
3859 | \def\plainsecheading#1{\sectionheading{sec}{}{#1}} | |
3860 | ||
3861 | % Subsection titles. | |
3862 | \newskip \subsecheadingskip | |
3863 | \def\subsecheadingbreak{\dobreak \subsecheadingskip {-500}} | |
3864 | \def\subsecheading#1#2#3#4{\sectionheading{subsec}{#2.#3.#4}{#1}} | |
3865 | \def\plainsubsecheading#1{\sectionheading{subsec}{}{#1}} | |
3866 | ||
3867 | % Subsubsection titles. | |
3868 | \let\subsubsecheadingskip = \subsecheadingskip | |
3869 | \let\subsubsecheadingbreak = \subsecheadingbreak | |
3870 | \def\subsubsecheading#1#2#3#4#5{\sectionheading{subsubsec}{#2.#3.#4.#5}{#1}} | |
3871 | \def\plainsubsubsecheading#1{\sectionheading{subsubsec}{}{#1}} | |
3872 | ||
3873 | ||
3874 | % Print any size section title. | |
3875 | % | |
3876 | % #1 is the section type (sec/subsec/subsubsec), #2 is the section | |
3877 | % number (maybe empty), #3 the text. | |
3878 | \def\sectionheading#1#2#3{% | |
3879 | {% | |
3880 | \expandafter\advance\csname #1headingskip\endcsname by \parskip | |
3881 | \csname #1headingbreak\endcsname | |
3882 | }% | |
3883 | {% | |
3884 | % Switch to the right set of fonts. | |
3885 | \csname #1fonts\endcsname \rm | |
3886 | % | |
3887 | % Only insert the separating space if we have a section number. | |
3888 | \def\secnum{#2}% | |
3889 | \setbox0 = \hbox{#2\ifx\secnum\empty\else\enspace\fi}% | |
3890 | % | |
3891 | \vbox{\hyphenpenalty=10000 \tolerance=5000 \parindent=0pt \raggedright | |
3892 | \hangindent = \wd0 % zero if no section number | |
3893 | \unhbox0 #3}% | |
3894 | }% | |
3895 | \ifdim\parskip<10pt \nobreak\kern10pt\nobreak\kern-\parskip\fi \nobreak | |
3896 | } | |
3897 | ||
3898 | ||
3899 | \message{toc,} | |
449f3b6c | 3900 | % Table of contents. |
ff35fedc ILT |
3901 | \newwrite\tocfile |
3902 | ||
3903 | % Write an entry to the toc file, opening it if necessary. | |
3904 | % Called from @chapter, etc. We supply {\folio} at the end of the | |
3905 | % argument, which will end up as the last argument to the \...entry macro. | |
449f3b6c | 3906 | % |
ff35fedc ILT |
3907 | % We open the .toc file here instead of at @setfilename or any other |
3908 | % given time so that @contents can be put in the document anywhere. | |
449f3b6c | 3909 | % |
ff35fedc ILT |
3910 | \newif\iftocfileopened |
3911 | \def\writetocentry#1{% | |
3912 | \iftocfileopened\else | |
3913 | \immediate\openout\tocfile = \jobname.toc | |
3914 | \global\tocfileopenedtrue | |
3915 | \fi | |
3916 | \iflinks \write\tocfile{#1{\folio}}\fi | |
3917 | } | |
3918 | ||
3919 | \newskip\contentsrightmargin \contentsrightmargin=1in | |
3920 | \newcount\savepageno | |
3921 | \newcount\lastnegativepageno \lastnegativepageno = -1 | |
3922 | ||
3923 | % Finish up the main text and prepare to read what we've written | |
3924 | % to \tocfile. | |
449f3b6c | 3925 | % |
ff35fedc ILT |
3926 | \def\startcontents#1{% |
3927 | % If @setchapternewpage on, and @headings double, the contents should | |
3928 | % start on an odd page, unlike chapters. Thus, we maintain | |
3929 | % \contentsalignmacro in parallel with \pagealignmacro. | |
3930 | % From: Torbjorn Granlund <tege@matematik.su.se> | |
3931 | \contentsalignmacro | |
3932 | \immediate\closeout\tocfile | |
3933 | % | |
3934 | % Don't need to put `Contents' or `Short Contents' in the headline. | |
3935 | % It is abundantly clear what they are. | |
3936 | \unnumbchapmacro{#1}\def\thischapter{}% | |
3937 | \savepageno = \pageno | |
3938 | \begingroup % Set up to handle contents files properly. | |
3939 | \catcode`\\=0 \catcode`\{=1 \catcode`\}=2 \catcode`\@=11 | |
3940 | % We can't do this, because then an actual ^ in a section | |
3941 | % title fails, e.g., @chapter ^ -- exponentiation. --karl, 9jul97. | |
3942 | %\catcode`\^=7 % to see ^^e4 as \"a etc. juha@piuha.ydi.vtt.fi | |
3943 | \raggedbottom % Worry more about breakpoints than the bottom. | |
3944 | \advance\hsize by -\contentsrightmargin % Don't use the full line length. | |
3945 | % | |
3946 | % Roman numerals for page numbers. | |
3947 | \ifnum \pageno>0 \pageno = \lastnegativepageno \fi | |
3948 | } | |
3949 | ||
3950 | ||
3951 | % Normal (long) toc. | |
3952 | \def\contents{% | |
449f3b6c | 3953 | \startcontents{\putwordTOC}% |
ff35fedc ILT |
3954 | \openin 1 \jobname.toc |
3955 | \ifeof 1 \else | |
3956 | \closein 1 | |
3957 | \input \jobname.toc | |
3958 | \fi | |
3959 | \vfill \eject | |
449f3b6c AC |
3960 | \contentsalignmacro % in case @setchapternewpage odd is in effect |
3961 | \pdfmakeoutlines | |
ff35fedc ILT |
3962 | \endgroup |
3963 | \lastnegativepageno = \pageno | |
3964 | \pageno = \savepageno | |
3965 | } | |
3966 | ||
3967 | % And just the chapters. | |
3968 | \def\summarycontents{% | |
449f3b6c | 3969 | \startcontents{\putwordShortTOC}% |
ff35fedc ILT |
3970 | % |
3971 | \let\chapentry = \shortchapentry | |
bd48e1a9 | 3972 | \let\appendixentry = \shortappendixentry |
ff35fedc ILT |
3973 | \let\unnumbchapentry = \shortunnumberedentry |
3974 | % We want a true roman here for the page numbers. | |
3975 | \secfonts | |
3976 | \let\rm=\shortcontrm \let\bf=\shortcontbf \let\sl=\shortcontsl | |
3977 | \rm | |
3978 | \hyphenpenalty = 10000 | |
3979 | \advance\baselineskip by 1pt % Open it up a little. | |
3980 | \def\secentry ##1##2##3##4{} | |
3981 | \def\unnumbsecentry ##1##2{} | |
3982 | \def\subsecentry ##1##2##3##4##5{} | |
3983 | \def\unnumbsubsecentry ##1##2{} | |
3984 | \def\subsubsecentry ##1##2##3##4##5##6{} | |
3985 | \def\unnumbsubsubsecentry ##1##2{} | |
3986 | \openin 1 \jobname.toc | |
3987 | \ifeof 1 \else | |
3988 | \closein 1 | |
3989 | \input \jobname.toc | |
3990 | \fi | |
3991 | \vfill \eject | |
449f3b6c | 3992 | \contentsalignmacro % in case @setchapternewpage odd is in effect |
ff35fedc ILT |
3993 | \endgroup |
3994 | \lastnegativepageno = \pageno | |
3995 | \pageno = \savepageno | |
3996 | } | |
3997 | \let\shortcontents = \summarycontents | |
3998 | ||
449f3b6c AC |
3999 | \ifpdf |
4000 | \pdfcatalog{/PageMode /UseOutlines}% | |
4001 | \fi | |
4002 | ||
ff35fedc ILT |
4003 | % These macros generate individual entries in the table of contents. |
4004 | % The first argument is the chapter or section name. | |
4005 | % The last argument is the page number. | |
4006 | % The arguments in between are the chapter number, section number, ... | |
4007 | ||
bd48e1a9 | 4008 | % Chapters, in the main contents. |
ff35fedc | 4009 | \def\chapentry#1#2#3{\dochapentry{#2\labelspace#1}{#3}} |
bd48e1a9 AC |
4010 | % |
4011 | % Chapters, in the short toc. | |
4012 | % See comments in \dochapentry re vbox and related settings. | |
ff35fedc | 4013 | \def\shortchapentry#1#2#3{% |
449f3b6c | 4014 | \tocentry{\shortchaplabel{#2}\labelspace #1}{\doshortpageno\bgroup#3\egroup}% |
ff35fedc ILT |
4015 | } |
4016 | ||
bd48e1a9 AC |
4017 | % Appendices, in the main contents. |
4018 | \def\appendixentry#1#2#3{\dochapentry{\putwordAppendix{} #2\labelspace#1}{#3}} | |
4019 | % | |
4020 | % Appendices, in the short toc. | |
4021 | \let\shortappendixentry = \shortchapentry | |
4022 | ||
ff35fedc | 4023 | % Typeset the label for a chapter or appendix for the short contents. |
bd48e1a9 | 4024 | % The arg is, e.g., `Appendix A' for an appendix, or `3' for a chapter. |
ff35fedc ILT |
4025 | % We could simplify the code here by writing out an \appendixentry |
4026 | % command in the toc file for appendices, instead of using \chapentry | |
4027 | % for both, but it doesn't seem worth it. | |
449f3b6c AC |
4028 | % |
4029 | \newdimen\shortappendixwidth | |
4030 | % | |
ff35fedc | 4031 | \def\shortchaplabel#1{% |
bd48e1a9 | 4032 | % This space should be enough, since a single number is .5em, and the |
ff35fedc | 4033 | % widest letter (M) is 1em, at least in the Computer Modern fonts. |
bd48e1a9 | 4034 | % But use \hss just in case. |
ff35fedc ILT |
4035 | % (This space doesn't include the extra space that gets added after |
4036 | % the label; that gets put in by \shortchapentry above.) | |
bd48e1a9 AC |
4037 | \dimen0 = 1em |
4038 | \hbox to \dimen0{#1\hss}% | |
ff35fedc ILT |
4039 | } |
4040 | ||
bd48e1a9 | 4041 | % Unnumbered chapters. |
ff35fedc | 4042 | \def\unnumbchapentry#1#2{\dochapentry{#1}{#2}} |
449f3b6c | 4043 | \def\shortunnumberedentry#1#2{\tocentry{#1}{\doshortpageno\bgroup#2\egroup}} |
ff35fedc ILT |
4044 | |
4045 | % Sections. | |
4046 | \def\secentry#1#2#3#4{\dosecentry{#2.#3\labelspace#1}{#4}} | |
4047 | \def\unnumbsecentry#1#2{\dosecentry{#1}{#2}} | |
4048 | ||
4049 | % Subsections. | |
4050 | \def\subsecentry#1#2#3#4#5{\dosubsecentry{#2.#3.#4\labelspace#1}{#5}} | |
4051 | \def\unnumbsubsecentry#1#2{\dosubsecentry{#1}{#2}} | |
4052 | ||
4053 | % And subsubsections. | |
4054 | \def\subsubsecentry#1#2#3#4#5#6{% | |
4055 | \dosubsubsecentry{#2.#3.#4.#5\labelspace#1}{#6}} | |
4056 | \def\unnumbsubsubsecentry#1#2{\dosubsubsecentry{#1}{#2}} | |
4057 | ||
4058 | % This parameter controls the indentation of the various levels. | |
4059 | \newdimen\tocindent \tocindent = 3pc | |
4060 | ||
4061 | % Now for the actual typesetting. In all these, #1 is the text and #2 is the | |
4062 | % page number. | |
4063 | % | |
4064 | % If the toc has to be broken over pages, we want it to be at chapters | |
4065 | % if at all possible; hence the \penalty. | |
4066 | \def\dochapentry#1#2{% | |
4067 | \penalty-300 \vskip1\baselineskip plus.33\baselineskip minus.25\baselineskip | |
4068 | \begingroup | |
4069 | \chapentryfonts | |
449f3b6c | 4070 | \tocentry{#1}{\dopageno\bgroup#2\egroup}% |
ff35fedc ILT |
4071 | \endgroup |
4072 | \nobreak\vskip .25\baselineskip plus.1\baselineskip | |
4073 | } | |
4074 | ||
4075 | \def\dosecentry#1#2{\begingroup | |
4076 | \secentryfonts \leftskip=\tocindent | |
449f3b6c | 4077 | \tocentry{#1}{\dopageno\bgroup#2\egroup}% |
ff35fedc ILT |
4078 | \endgroup} |
4079 | ||
4080 | \def\dosubsecentry#1#2{\begingroup | |
4081 | \subsecentryfonts \leftskip=2\tocindent | |
449f3b6c | 4082 | \tocentry{#1}{\dopageno\bgroup#2\egroup}% |
ff35fedc ILT |
4083 | \endgroup} |
4084 | ||
4085 | \def\dosubsubsecentry#1#2{\begingroup | |
4086 | \subsubsecentryfonts \leftskip=3\tocindent | |
449f3b6c | 4087 | \tocentry{#1}{\dopageno\bgroup#2\egroup}% |
ff35fedc ILT |
4088 | \endgroup} |
4089 | ||
4090 | % Final typesetting of a toc entry; we use the same \entry macro as for | |
4091 | % the index entries, but we want to suppress hyphenation here. (We | |
4092 | % can't do that in the \entry macro, since index entries might consist | |
4093 | % of hyphenated-identifiers-that-do-not-fit-on-a-line-and-nothing-else.) | |
4094 | \def\tocentry#1#2{\begingroup | |
4095 | \vskip 0pt plus1pt % allow a little stretch for the sake of nice page breaks | |
4096 | % Do not use \turnoffactive in these arguments. Since the toc is | |
bd48e1a9 | 4097 | % typeset in cmr, characters such as _ would come out wrong; we |
ff35fedc ILT |
4098 | % have to do the usual translation tricks. |
4099 | \entry{#1}{#2}% | |
4100 | \endgroup} | |
4101 | ||
4102 | % Space between chapter (or whatever) number and the title. | |
4103 | \def\labelspace{\hskip1em \relax} | |
4104 | ||
4105 | \def\dopageno#1{{\rm #1}} | |
4106 | \def\doshortpageno#1{{\rm #1}} | |
4107 | ||
4108 | \def\chapentryfonts{\secfonts \rm} | |
4109 | \def\secentryfonts{\textfonts} | |
4110 | \let\subsecentryfonts = \textfonts | |
4111 | \let\subsubsecentryfonts = \textfonts | |
4112 | ||
4113 | ||
4114 | \message{environments,} | |
449f3b6c | 4115 | % @foo ... @end foo. |
ff35fedc ILT |
4116 | |
4117 | % Since these characters are used in examples, it should be an even number of | |
4118 | % \tt widths. Each \tt character is 1en, so two makes it 1em. | |
4119 | % Furthermore, these definitions must come after we define our fonts. | |
4120 | \newbox\dblarrowbox \newbox\longdblarrowbox | |
4121 | \newbox\pushcharbox \newbox\bullbox | |
4122 | \newbox\equivbox \newbox\errorbox | |
4123 | ||
4124 | %{\tentt | |
4125 | %\global\setbox\dblarrowbox = \hbox to 1em{\hfil$\Rightarrow$\hfil} | |
4126 | %\global\setbox\longdblarrowbox = \hbox to 1em{\hfil$\mapsto$\hfil} | |
4127 | %\global\setbox\pushcharbox = \hbox to 1em{\hfil$\dashv$\hfil} | |
4128 | %\global\setbox\equivbox = \hbox to 1em{\hfil$\ptexequiv$\hfil} | |
4129 | % Adapted from the manmac format (p.420 of TeXbook) | |
4130 | %\global\setbox\bullbox = \hbox to 1em{\kern.15em\vrule height .75ex width .85ex | |
4131 | % depth .1ex\hfil} | |
4132 | %} | |
4133 | ||
4134 | % @point{}, @result{}, @expansion{}, @print{}, @equiv{}. | |
4135 | \def\point{$\star$} | |
4136 | \def\result{\leavevmode\raise.15ex\hbox to 1em{\hfil$\Rightarrow$\hfil}} | |
4137 | \def\expansion{\leavevmode\raise.1ex\hbox to 1em{\hfil$\mapsto$\hfil}} | |
4138 | \def\print{\leavevmode\lower.1ex\hbox to 1em{\hfil$\dashv$\hfil}} | |
4139 | \def\equiv{\leavevmode\lower.1ex\hbox to 1em{\hfil$\ptexequiv$\hfil}} | |
4140 | ||
4141 | % Adapted from the TeXbook's \boxit. | |
4142 | {\tentt \global\dimen0 = 3em}% Width of the box. | |
4143 | \dimen2 = .55pt % Thickness of rules | |
4144 | % The text. (`r' is open on the right, `e' somewhat less so on the left.) | |
4145 | \setbox0 = \hbox{\kern-.75pt \tensf error\kern-1.5pt} | |
4146 | ||
4147 | \global\setbox\errorbox=\hbox to \dimen0{\hfil | |
4148 | \hsize = \dimen0 \advance\hsize by -5.8pt % Space to left+right. | |
4149 | \advance\hsize by -2\dimen2 % Rules. | |
4150 | \vbox{ | |
4151 | \hrule height\dimen2 | |
4152 | \hbox{\vrule width\dimen2 \kern3pt % Space to left of text. | |
4153 | \vtop{\kern2.4pt \box0 \kern2.4pt}% Space above/below. | |
4154 | \kern3pt\vrule width\dimen2}% Space to right. | |
4155 | \hrule height\dimen2} | |
4156 | \hfil} | |
4157 | ||
4158 | % The @error{} command. | |
4159 | \def\error{\leavevmode\lower.7ex\copy\errorbox} | |
4160 | ||
4161 | % @tex ... @end tex escapes into raw Tex temporarily. | |
4162 | % One exception: @ is still an escape character, so that @end tex works. | |
4163 | % But \@ or @@ will get a plain tex @ character. | |
4164 | ||
4165 | \def\tex{\begingroup | |
4166 | \catcode `\\=0 \catcode `\{=1 \catcode `\}=2 | |
4167 | \catcode `\$=3 \catcode `\&=4 \catcode `\#=6 | |
4168 | \catcode `\^=7 \catcode `\_=8 \catcode `\~=13 \let~=\tie | |
4169 | \catcode `\%=14 | |
4170 | \catcode 43=12 % plus | |
4171 | \catcode`\"=12 | |
4172 | \catcode`\==12 | |
4173 | \catcode`\|=12 | |
4174 | \catcode`\<=12 | |
4175 | \catcode`\>=12 | |
4176 | \escapechar=`\\ | |
4177 | % | |
4178 | \let\b=\ptexb | |
4179 | \let\bullet=\ptexbullet | |
4180 | \let\c=\ptexc | |
4181 | \let\,=\ptexcomma | |
4182 | \let\.=\ptexdot | |
4183 | \let\dots=\ptexdots | |
4184 | \let\equiv=\ptexequiv | |
4185 | \let\!=\ptexexclam | |
4186 | \let\i=\ptexi | |
4187 | \let\{=\ptexlbrace | |
4188 | \let\+=\tabalign | |
4189 | \let\}=\ptexrbrace | |
4190 | \let\*=\ptexstar | |
4191 | \let\t=\ptext | |
4192 | % | |
4193 | \def\endldots{\mathinner{\ldots\ldots\ldots\ldots}}% | |
4194 | \def\enddots{\relax\ifmmode\endldots\else$\mathsurround=0pt \endldots\,$\fi}% | |
4195 | \def\@{@}% | |
4196 | \let\Etex=\endgroup} | |
4197 | ||
4198 | % Define @lisp ... @endlisp. | |
4199 | % @lisp does a \begingroup so it can rebind things, | |
4200 | % including the definition of @endlisp (which normally is erroneous). | |
4201 | ||
4202 | % Amount to narrow the margins by for @lisp. | |
4203 | \newskip\lispnarrowing \lispnarrowing=0.4in | |
4204 | ||
4205 | % This is the definition that ^^M gets inside @lisp, @example, and other | |
4206 | % such environments. \null is better than a space, since it doesn't | |
4207 | % have any width. | |
4208 | \def\lisppar{\null\endgraf} | |
4209 | ||
4210 | % Make each space character in the input produce a normal interword | |
4211 | % space in the output. Don't allow a line break at this space, as this | |
4212 | % is used only in environments like @example, where each line of input | |
4213 | % should produce a line of output anyway. | |
4214 | % | |
4215 | {\obeyspaces % | |
4216 | \gdef\sepspaces{\obeyspaces\let =\tie}} | |
4217 | ||
4218 | % Define \obeyedspace to be our active space, whatever it is. This is | |
4219 | % for use in \parsearg. | |
4220 | {\sepspaces% | |
4221 | \global\let\obeyedspace= } | |
4222 | ||
4223 | % This space is always present above and below environments. | |
4224 | \newskip\envskipamount \envskipamount = 0pt | |
4225 | ||
4226 | % Make spacing and below environment symmetrical. We use \parskip here | |
4227 | % to help in doing that, since in @example-like environments \parskip | |
4228 | % is reset to zero; thus the \afterenvbreak inserts no space -- but the | |
4229 | % start of the next paragraph will insert \parskip | |
4230 | % | |
bd48e1a9 AC |
4231 | \def\aboveenvbreak{{% |
4232 | \ifnum\lastpenalty < 10000 | |
4233 | \advance\envskipamount by \parskip | |
4234 | \endgraf | |
4235 | \ifdim\lastskip<\envskipamount | |
4236 | \removelastskip | |
4237 | \penalty-50 | |
4238 | \vskip\envskipamount | |
4239 | \fi | |
4240 | \fi | |
4241 | }} | |
ff35fedc ILT |
4242 | |
4243 | \let\afterenvbreak = \aboveenvbreak | |
4244 | ||
4245 | % \nonarrowing is a flag. If "set", @lisp etc don't narrow margins. | |
4246 | \let\nonarrowing=\relax | |
4247 | ||
4248 | % @cartouche ... @end cartouche: draw rectangle w/rounded corners around | |
4249 | % environment contents. | |
4250 | \font\circle=lcircle10 | |
4251 | \newdimen\circthick | |
4252 | \newdimen\cartouter\newdimen\cartinner | |
4253 | \newskip\normbskip\newskip\normpskip\newskip\normlskip | |
4254 | \circthick=\fontdimen8\circle | |
4255 | % | |
4256 | \def\ctl{{\circle\char'013\hskip -6pt}}% 6pt from pl file: 1/2charwidth | |
4257 | \def\ctr{{\hskip 6pt\circle\char'010}} | |
4258 | \def\cbl{{\circle\char'012\hskip -6pt}} | |
4259 | \def\cbr{{\hskip 6pt\circle\char'011}} | |
4260 | \def\carttop{\hbox to \cartouter{\hskip\lskip | |
4261 | \ctl\leaders\hrule height\circthick\hfil\ctr | |
4262 | \hskip\rskip}} | |
4263 | \def\cartbot{\hbox to \cartouter{\hskip\lskip | |
4264 | \cbl\leaders\hrule height\circthick\hfil\cbr | |
4265 | \hskip\rskip}} | |
4266 | % | |
4267 | \newskip\lskip\newskip\rskip | |
4268 | ||
4269 | \long\def\cartouche{% | |
4270 | \begingroup | |
4271 | \lskip=\leftskip \rskip=\rightskip | |
4272 | \leftskip=0pt\rightskip=0pt %we want these *outside*. | |
4273 | \cartinner=\hsize \advance\cartinner by-\lskip | |
4274 | \advance\cartinner by-\rskip | |
4275 | \cartouter=\hsize | |
4276 | \advance\cartouter by 18.4pt % allow for 3pt kerns on either | |
4277 | % side, and for 6pt waste from | |
4278 | % each corner char, and rule thickness | |
4279 | \normbskip=\baselineskip \normpskip=\parskip \normlskip=\lineskip | |
4280 | % Flag to tell @lisp, etc., not to narrow margin. | |
4281 | \let\nonarrowing=\comment | |
4282 | \vbox\bgroup | |
4283 | \baselineskip=0pt\parskip=0pt\lineskip=0pt | |
4284 | \carttop | |
4285 | \hbox\bgroup | |
4286 | \hskip\lskip | |
4287 | \vrule\kern3pt | |
4288 | \vbox\bgroup | |
4289 | \hsize=\cartinner | |
4290 | \kern3pt | |
4291 | \begingroup | |
4292 | \baselineskip=\normbskip | |
4293 | \lineskip=\normlskip | |
4294 | \parskip=\normpskip | |
4295 | \vskip -\parskip | |
4296 | \def\Ecartouche{% | |
4297 | \endgroup | |
4298 | \kern3pt | |
4299 | \egroup | |
4300 | \kern3pt\vrule | |
4301 | \hskip\rskip | |
4302 | \egroup | |
4303 | \cartbot | |
4304 | \egroup | |
4305 | \endgroup | |
4306 | }} | |
4307 | ||
4308 | ||
4309 | % This macro is called at the beginning of all the @example variants, | |
4310 | % inside a group. | |
4311 | \def\nonfillstart{% | |
4312 | \aboveenvbreak | |
4313 | \inENV % This group ends at the end of the body | |
4314 | \hfuzz = 12pt % Don't be fussy | |
4315 | \sepspaces % Make spaces be word-separators rather than space tokens. | |
4316 | \singlespace | |
4317 | \let\par = \lisppar % don't ignore blank lines | |
4318 | \obeylines % each line of input is a line of output | |
4319 | \parskip = 0pt | |
4320 | \parindent = 0pt | |
4321 | \emergencystretch = 0pt % don't try to avoid overfull boxes | |
4322 | % @cartouche defines \nonarrowing to inhibit narrowing | |
4323 | % at next level down. | |
4324 | \ifx\nonarrowing\relax | |
4325 | \advance \leftskip by \lispnarrowing | |
4326 | \exdentamount=\lispnarrowing | |
4327 | \let\exdent=\nofillexdent | |
4328 | \let\nonarrowing=\relax | |
4329 | \fi | |
4330 | } | |
4331 | ||
4332 | % Define the \E... control sequence only if we are inside the particular | |
4333 | % environment, so the error checking in \end will work. | |
449f3b6c | 4334 | % |
ff35fedc ILT |
4335 | % To end an @example-like environment, we first end the paragraph (via |
4336 | % \afterenvbreak's vertical glue), and then the group. That way we keep | |
4337 | % the zero \parskip that the environments set -- \parskip glue will be | |
4338 | % inserted at the beginning of the next paragraph in the document, after | |
4339 | % the environment. | |
4340 | % | |
4341 | \def\nonfillfinish{\afterenvbreak\endgroup} | |
4342 | ||
4343 | % @lisp: indented, narrowed, typewriter font. | |
4344 | \def\lisp{\begingroup | |
4345 | \nonfillstart | |
4346 | \let\Elisp = \nonfillfinish | |
4347 | \tt | |
4348 | \let\kbdfont = \kbdexamplefont % Allow @kbd to do something special. | |
4349 | \gobble % eat return | |
4350 | } | |
4351 | ||
4352 | % @example: Same as @lisp. | |
4353 | \def\example{\begingroup \def\Eexample{\nonfillfinish\endgroup}\lisp} | |
4354 | ||
4355 | % @small... is usually equivalent to the non-small (@smallbook | |
4356 | % redefines). We must call \example (or whatever) last in the | |
4357 | % definition, since it reads the return following the @example (or | |
4358 | % whatever) command. | |
449f3b6c | 4359 | % |
ff35fedc ILT |
4360 | % This actually allows (for example) @end display inside an |
4361 | % @smalldisplay. Too bad, but makeinfo will catch the error anyway. | |
4362 | % | |
4363 | \def\smalldisplay{\begingroup\def\Esmalldisplay{\nonfillfinish\endgroup}\display} | |
4364 | \def\smallexample{\begingroup\def\Esmallexample{\nonfillfinish\endgroup}\lisp} | |
4365 | \def\smallformat{\begingroup\def\Esmallformat{\nonfillfinish\endgroup}\format} | |
4366 | \def\smalllisp{\begingroup\def\Esmalllisp{\nonfillfinish\endgroup}\lisp} | |
4367 | ||
4368 | % Real @smallexample and @smalllisp (when @smallbook): use smaller fonts. | |
4369 | % Originally contributed by Pavel@xerox. | |
4370 | \def\smalllispx{\begingroup | |
4371 | \def\Esmalllisp{\nonfillfinish\endgroup}% | |
4372 | \def\Esmallexample{\nonfillfinish\endgroup}% | |
bd48e1a9 | 4373 | \smallexamplefonts |
ff35fedc ILT |
4374 | \lisp |
4375 | } | |
4376 | ||
4377 | % @display: same as @lisp except keep current font. | |
4378 | % | |
4379 | \def\display{\begingroup | |
4380 | \nonfillstart | |
4381 | \let\Edisplay = \nonfillfinish | |
4382 | \gobble | |
4383 | } | |
bd48e1a9 | 4384 | % |
ff35fedc ILT |
4385 | % @smalldisplay (when @smallbook): @display plus smaller fonts. |
4386 | % | |
4387 | \def\smalldisplayx{\begingroup | |
4388 | \def\Esmalldisplay{\nonfillfinish\endgroup}% | |
bd48e1a9 | 4389 | \smallexamplefonts \rm |
ff35fedc ILT |
4390 | \display |
4391 | } | |
4392 | ||
4393 | % @format: same as @display except don't narrow margins. | |
4394 | % | |
4395 | \def\format{\begingroup | |
4396 | \let\nonarrowing = t | |
4397 | \nonfillstart | |
4398 | \let\Eformat = \nonfillfinish | |
4399 | \gobble | |
4400 | } | |
bd48e1a9 | 4401 | % |
ff35fedc ILT |
4402 | % @smallformat (when @smallbook): @format plus smaller fonts. |
4403 | % | |
4404 | \def\smallformatx{\begingroup | |
4405 | \def\Esmallformat{\nonfillfinish\endgroup}% | |
bd48e1a9 | 4406 | \smallexamplefonts \rm |
ff35fedc ILT |
4407 | \format |
4408 | } | |
4409 | ||
4410 | % @flushleft (same as @format). | |
4411 | % | |
4412 | \def\flushleft{\begingroup \def\Eflushleft{\nonfillfinish\endgroup}\format} | |
4413 | ||
4414 | % @flushright. | |
449f3b6c | 4415 | % |
ff35fedc ILT |
4416 | \def\flushright{\begingroup |
4417 | \let\nonarrowing = t | |
4418 | \nonfillstart | |
4419 | \let\Eflushright = \nonfillfinish | |
4420 | \advance\leftskip by 0pt plus 1fill | |
4421 | \gobble | |
4422 | } | |
4423 | ||
bd48e1a9 | 4424 | |
ff35fedc ILT |
4425 | % @quotation does normal linebreaking (hence we can't use \nonfillstart) |
4426 | % and narrows the margins. | |
4427 | % | |
4428 | \def\quotation{% | |
4429 | \begingroup\inENV %This group ends at the end of the @quotation body | |
4430 | {\parskip=0pt \aboveenvbreak}% because \aboveenvbreak inserts \parskip | |
4431 | \singlespace | |
4432 | \parindent=0pt | |
4433 | % We have retained a nonzero parskip for the environment, since we're | |
4434 | % doing normal filling. So to avoid extra space below the environment... | |
4435 | \def\Equotation{\parskip = 0pt \nonfillfinish}% | |
4436 | % | |
4437 | % @cartouche defines \nonarrowing to inhibit narrowing at next level down. | |
4438 | \ifx\nonarrowing\relax | |
4439 | \advance\leftskip by \lispnarrowing | |
4440 | \advance\rightskip by \lispnarrowing | |
4441 | \exdentamount = \lispnarrowing | |
4442 | \let\nonarrowing = \relax | |
4443 | \fi | |
4444 | } | |
4445 | ||
4446 | ||
bd48e1a9 AC |
4447 | % LaTeX-like @verbatim...@end verbatim and @verb{<char>...<char>} |
4448 | % If we want to allow any <char> as delimiter, | |
4449 | % we need the curly braces so that makeinfo sees the @verb command, eg: | |
4450 | % `@verbx...x' would look like the '@verbx' command. --janneke@gnu.org | |
4451 | % | |
4452 | % [Knuth]: Donald Ervin Knuth, 1996. The TeXbook. | |
4453 | % | |
4454 | % [Knuth] p. 344; only we need to do '@' too | |
4455 | \def\dospecials{% | |
4456 | \do\ \do\\\do\@\do\{\do\}\do\$\do\&% | |
4457 | \do\#\do\^\do\^^K\do\_\do\^^A\do\%\do\~} | |
4458 | % | |
4459 | % [Knuth] p. 380 | |
4460 | \def\uncatcodespecials{% | |
4461 | \def\do##1{\catcode`##1=12}\dospecials} | |
4462 | % | |
4463 | % [Knuth] pp. 380,381,391 | |
4464 | % Disable Spanish ligatures ?` and !` of \tt font | |
4465 | \begingroup | |
4466 | \catcode`\`=\active\gdef`{\relax\lq} | |
4467 | \endgroup | |
4468 | % | |
4469 | % Setup for the @verb command. | |
4470 | % | |
4471 | % Eight spaces for a tab | |
4472 | \begingroup | |
4473 | \catcode`\^^I=\active | |
4474 | \gdef\tabeightspaces{\catcode`\^^I=\active\def^^I{\ \ \ \ \ \ \ \ }} | |
4475 | \endgroup | |
4476 | % | |
4477 | \def\setupverb{% | |
4478 | \tt % easiest (and conventionally used) font for verbatim | |
4479 | \def\par{\leavevmode\endgraf}% | |
4480 | \catcode`\`=\active | |
4481 | \tabeightspaces | |
4482 | % Respect line breaks, | |
4483 | % print special symbols as themselves, and | |
4484 | % make each space count | |
4485 | % must do in this order: | |
4486 | \obeylines \uncatcodespecials \sepspaces | |
4487 | } | |
4488 | ||
4489 | % Setup for the @verbatim environment | |
4490 | % | |
4491 | % Real tab expansion | |
4492 | \newdimen\tabw \setbox0=\hbox{\tt\space} \tabw=8\wd0 % tab amount | |
4493 | % | |
4494 | \def\starttabbox{\setbox0=\hbox\bgroup} | |
4495 | \begingroup | |
4496 | \catcode`\^^I=\active | |
4497 | \gdef\tabexpand{% | |
4498 | \catcode`\^^I=\active | |
4499 | \def^^I{\leavevmode\egroup | |
4500 | \dimen0=\wd0 % the width so far, or since the previous tab | |
4501 | \divide\dimen0 by\tabw | |
4502 | \multiply\dimen0 by\tabw % compute previous multiple of \tabw | |
4503 | \advance\dimen0 by\tabw % advance to next multiple of \tabw | |
4504 | \wd0=\dimen0 \box0 \starttabbox | |
4505 | }% | |
4506 | } | |
4507 | \endgroup | |
4508 | \def\setupverbatim{% | |
4509 | % Easiest (and conventionally used) font for verbatim | |
4510 | \tt | |
4511 | \def\par{\leavevmode\egroup\box0\endgraf}% | |
4512 | \catcode`\`=\active | |
4513 | \tabexpand | |
4514 | % Respect line breaks, | |
4515 | % print special symbols as themselves, and | |
4516 | % make each space count | |
4517 | % must do in this order: | |
4518 | \obeylines \uncatcodespecials \sepspaces | |
4519 | \everypar{\starttabbox}% | |
4520 | } | |
4521 | ||
4522 | % Do the @verb magic: verbatim text is quoted by unique | |
4523 | % delimiter characters. Before first delimiter expect a | |
4524 | % right brace, after last delimiter expect closing brace: | |
4525 | % | |
4526 | % \def\doverb'{'<char>#1<char>'}'{#1} | |
4527 | % | |
4528 | % [Knuth] p. 382; only eat outer {} | |
4529 | \begingroup | |
4530 | \catcode`[=1\catcode`]=2\catcode`\{=12\catcode`\}=12 | |
4531 | \gdef\doverb{#1[\def\next##1#1}[##1\endgroup]\next] | |
4532 | \endgroup | |
4533 | % | |
4534 | \def\verb{\begingroup\setupverb\doverb} | |
4535 | % | |
4536 | % | |
4537 | % Do the @verbatim magic: define the macro \doverbatim so that | |
4538 | % the (first) argument ends when '@end verbatim' is reached, ie: | |
4539 | % | |
4540 | % \def\doverbatim#1@end verbatim{#1} | |
4541 | % | |
4542 | % For Texinfo it's a lot easier than for LaTeX, | |
4543 | % because texinfo's \verbatim doesn't stop at '\end{verbatim}': | |
4544 | % we need not redefine '\', '{' and '}' | |
4545 | % | |
4546 | % Inspired by LaTeX's verbatim command set [latex.ltx] | |
4547 | %% Include LaTeX hack for completeness -- never know | |
4548 | %% \begingroup | |
4549 | %% \catcode`|=0 \catcode`[=1 | |
4550 | %% \catcode`]=2\catcode`\{=12\catcode`\}=12\catcode`\ =\active | |
4551 | %% \catcode`\\=12|gdef|doverbatim#1@end verbatim[ | |
4552 | %% #1|endgroup|def|Everbatim[]|end[verbatim]] | |
4553 | %% |endgroup | |
4554 | \begingroup | |
4555 | \catcode`\ =\active | |
4556 | \gdef\doverbatim#1@end verbatim{#1\end{verbatim}} | |
4557 | \endgroup | |
4558 | % | |
4559 | \def\verbatim{% | |
4560 | \def\Everbatim{\nonfillfinish\endgroup}% | |
4561 | \begingroup | |
4562 | \nonfillstart | |
4563 | \advance\leftskip by -\defbodyindent | |
4564 | \begingroup\setupverbatim\doverbatim | |
4565 | } | |
4566 | ||
4567 | % @verbatiminclude FILE - insert text of file in verbatim environment. | |
4568 | % | |
4569 | % Allow normal characters that we make active in the argument (a file name). | |
4570 | \def\verbatiminclude{% | |
4571 | \begingroup | |
4572 | \catcode`\\=12 | |
4573 | \catcode`~=12 | |
4574 | \catcode`^=12 | |
4575 | \catcode`_=12 | |
4576 | \catcode`|=12 | |
4577 | \catcode`<=12 | |
4578 | \catcode`>=12 | |
4579 | \catcode`+=12 | |
4580 | \parsearg\doverbatiminclude | |
4581 | } | |
4582 | \def\setupverbatiminclude{% | |
4583 | \begingroup | |
4584 | \nonfillstart | |
4585 | \advance\leftskip by -\defbodyindent | |
4586 | \begingroup\setupverbatim | |
4587 | } | |
4588 | % | |
4589 | \def\doverbatiminclude#1{% | |
4590 | % Restore active chars for included file. | |
4591 | \endgroup | |
4592 | \begingroup | |
4593 | \def\thisfile{#1}% | |
4594 | \expandafter\expandafter\setupverbatiminclude\input\thisfile | |
4595 | \endgroup\nonfillfinish\endgroup | |
4596 | } | |
4597 | ||
4598 | ||
ff35fedc | 4599 | \message{defuns,} |
449f3b6c AC |
4600 | % @defun etc. |
4601 | ||
4602 | % Allow user to change definition object font (\df) internally | |
ff35fedc ILT |
4603 | \def\setdeffont #1 {\csname DEF#1\endcsname} |
4604 | ||
4605 | \newskip\defbodyindent \defbodyindent=.4in | |
4606 | \newskip\defargsindent \defargsindent=50pt | |
4607 | \newskip\deftypemargin \deftypemargin=12pt | |
4608 | \newskip\deflastargmargin \deflastargmargin=18pt | |
4609 | ||
4610 | \newcount\parencount | |
4611 | % define \functionparens, which makes ( and ) and & do special things. | |
4612 | % \functionparens affects the group it is contained in. | |
4613 | \def\activeparens{% | |
4614 | \catcode`\(=\active \catcode`\)=\active \catcode`\&=\active | |
4615 | \catcode`\[=\active \catcode`\]=\active} | |
4616 | ||
4617 | % Make control sequences which act like normal parenthesis chars. | |
4618 | \let\lparen = ( \let\rparen = ) | |
4619 | ||
4620 | {\activeparens % Now, smart parens don't turn on until &foo (see \amprm) | |
4621 | ||
4622 | % Be sure that we always have a definition for `(', etc. For example, | |
4623 | % if the fn name has parens in it, \boldbrax will not be in effect yet, | |
4624 | % so TeX would otherwise complain about undefined control sequence. | |
4625 | \global\let(=\lparen \global\let)=\rparen | |
4626 | \global\let[=\lbrack \global\let]=\rbrack | |
4627 | ||
4628 | \gdef\functionparens{\boldbrax\let&=\amprm\parencount=0 } | |
4629 | \gdef\boldbrax{\let(=\opnr\let)=\clnr\let[=\lbrb\let]=\rbrb} | |
4630 | % This is used to turn on special parens | |
4631 | % but make & act ordinary (given that it's active). | |
4632 | \gdef\boldbraxnoamp{\let(=\opnr\let)=\clnr\let[=\lbrb\let]=\rbrb\let&=\ampnr} | |
4633 | ||
4634 | % Definitions of (, ) and & used in args for functions. | |
4635 | % This is the definition of ( outside of all parentheses. | |
4636 | \gdef\oprm#1 {{\rm\char`\(}#1 \bf \let(=\opnested | |
4637 | \global\advance\parencount by 1 | |
4638 | } | |
4639 | % | |
4640 | % This is the definition of ( when already inside a level of parens. | |
4641 | \gdef\opnested{\char`\(\global\advance\parencount by 1 } | |
4642 | % | |
4643 | \gdef\clrm{% Print a paren in roman if it is taking us back to depth of 0. | |
4644 | % also in that case restore the outer-level definition of (. | |
4645 | \ifnum \parencount=1 {\rm \char `\)}\sl \let(=\oprm \else \char `\) \fi | |
4646 | \global\advance \parencount by -1 } | |
4647 | % If we encounter &foo, then turn on ()-hacking afterwards | |
4648 | \gdef\amprm#1 {{\rm\}\let(=\oprm \let)=\clrm\ } | |
4649 | % | |
4650 | \gdef\normalparens{\boldbrax\let&=\ampnr} | |
4651 | } % End of definition inside \activeparens | |
4652 | %% These parens (in \boldbrax) actually are a little bolder than the | |
4653 | %% contained text. This is especially needed for [ and ] | |
4654 | \def\opnr{{\sf\char`\(}\global\advance\parencount by 1 } | |
4655 | \def\clnr{{\sf\char`\)}\global\advance\parencount by -1 } | |
449f3b6c | 4656 | \let\ampnr = \& |
ff35fedc ILT |
4657 | \def\lbrb{{\bf\char`\[}} |
4658 | \def\rbrb{{\bf\char`\]}} | |
4659 | ||
449f3b6c AC |
4660 | % Active &'s sneak into the index arguments, so make sure it's defined. |
4661 | { | |
4662 | \catcode`& = 13 | |
4663 | \global\let& = \ampnr | |
4664 | } | |
4665 | ||
ff35fedc ILT |
4666 | % First, defname, which formats the header line itself. |
4667 | % #1 should be the function name. | |
4668 | % #2 should be the type of definition, such as "Function". | |
4669 | ||
4670 | \def\defname #1#2{% | |
4671 | % Get the values of \leftskip and \rightskip as they were | |
4672 | % outside the @def... | |
4673 | \dimen2=\leftskip | |
4674 | \advance\dimen2 by -\defbodyindent | |
4675 | \noindent | |
4676 | \setbox0=\hbox{\hskip \deflastargmargin{\rm #2}\hskip \deftypemargin}% | |
4677 | \dimen0=\hsize \advance \dimen0 by -\wd0 % compute size for first line | |
4678 | \dimen1=\hsize \advance \dimen1 by -\defargsindent %size for continuations | |
4679 | \parshape 2 0in \dimen0 \defargsindent \dimen1 | |
4680 | % Now output arg 2 ("Function" or some such) | |
4681 | % ending at \deftypemargin from the right margin, | |
4682 | % but stuck inside a box of width 0 so it does not interfere with linebreaking | |
4683 | {% Adjust \hsize to exclude the ambient margins, | |
4684 | % so that \rightline will obey them. | |
4685 | \advance \hsize by -\dimen2 | |
4686 | \rlap{\rightline{{\rm #2}\hskip -1.25pc }}}% | |
4687 | % Make all lines underfull and no complaints: | |
4688 | \tolerance=10000 \hbadness=10000 | |
4689 | \advance\leftskip by -\defbodyindent | |
4690 | \exdentamount=\defbodyindent | |
4691 | {\df #1}\enskip % Generate function name | |
4692 | } | |
4693 | ||
4694 | % Actually process the body of a definition | |
4695 | % #1 should be the terminating control sequence, such as \Edefun. | |
4696 | % #2 should be the "another name" control sequence, such as \defunx. | |
4697 | % #3 should be the control sequence that actually processes the header, | |
4698 | % such as \defunheader. | |
4699 | ||
4700 | \def\defparsebody #1#2#3{\begingroup\inENV% Environment for definitionbody | |
4701 | \medbreak % | |
4702 | % Define the end token that this defining construct specifies | |
4703 | % so that it will exit this group. | |
4704 | \def#1{\endgraf\endgroup\medbreak}% | |
4705 | \def#2{\begingroup\obeylines\activeparens\spacesplit#3}% | |
4706 | \parindent=0in | |
4707 | \advance\leftskip by \defbodyindent | |
4708 | \exdentamount=\defbodyindent | |
4709 | \begingroup % | |
4710 | \catcode 61=\active % 61 is `=' | |
4711 | \obeylines\activeparens\spacesplit#3} | |
4712 | ||
4713 | % #1 is the \E... control sequence to end the definition (which we define). | |
4714 | % #2 is the \...x control sequence for consecutive fns (which we define). | |
4715 | % #3 is the control sequence to call to resume processing. | |
4716 | % #4, delimited by the space, is the class name. | |
449f3b6c | 4717 | % |
ff35fedc ILT |
4718 | \def\defmethparsebody#1#2#3#4 {\begingroup\inENV % |
4719 | \medbreak % | |
4720 | % Define the end token that this defining construct specifies | |
4721 | % so that it will exit this group. | |
4722 | \def#1{\endgraf\endgroup\medbreak}% | |
4723 | \def#2##1 {\begingroup\obeylines\activeparens\spacesplit{#3{##1}}}% | |
4724 | \parindent=0in | |
4725 | \advance\leftskip by \defbodyindent | |
4726 | \exdentamount=\defbodyindent | |
4727 | \begingroup\obeylines\activeparens\spacesplit{#3{#4}}} | |
4728 | ||
449f3b6c | 4729 | % Used for @deftypemethod and @deftypeivar. |
ff35fedc ILT |
4730 | % #1 is the \E... control sequence to end the definition (which we define). |
4731 | % #2 is the \...x control sequence for consecutive fns (which we define). | |
4732 | % #3 is the control sequence to call to resume processing. | |
449f3b6c | 4733 | % #4, delimited by a space, is the class name. |
ff35fedc | 4734 | % #5 is the method's return type. |
449f3b6c AC |
4735 | % |
4736 | \def\deftypemethparsebody#1#2#3#4 #5 {\begingroup\inENV | |
4737 | \medbreak | |
4738 | \def#1{\endgraf\endgroup\medbreak}% | |
4739 | \def#2##1 ##2 {\begingroup\obeylines\activeparens\spacesplit{#3{##1}{##2}}}% | |
4740 | \parindent=0in | |
4741 | \advance\leftskip by \defbodyindent | |
4742 | \exdentamount=\defbodyindent | |
4743 | \begingroup\obeylines\activeparens\spacesplit{#3{#4}{#5}}} | |
4744 | ||
4745 | % Used for @deftypeop. The change from \deftypemethparsebody is an | |
4746 | % extra argument at the beginning which is the `category', instead of it | |
4747 | % being the hardwired string `Method' or `Instance Variable'. We have | |
4748 | % to account for this both in the \...x definition and in parsing the | |
4749 | % input at hand. Thus also need a control sequence (passed as #5) for | |
4750 | % the \E... definition to assign the category name to. | |
ff35fedc | 4751 | % |
449f3b6c AC |
4752 | \def\deftypeopparsebody#1#2#3#4#5 #6 {\begingroup\inENV |
4753 | \medbreak | |
4754 | \def#1{\endgraf\endgroup\medbreak}% | |
4755 | \def#2##1 ##2 ##3 {% | |
4756 | \def#4{##1}% | |
4757 | \begingroup\obeylines\activeparens\spacesplit{#3{##2}{##3}}}% | |
4758 | \parindent=0in | |
4759 | \advance\leftskip by \defbodyindent | |
4760 | \exdentamount=\defbodyindent | |
4761 | \begingroup\obeylines\activeparens\spacesplit{#3{#5}{#6}}} | |
ff35fedc ILT |
4762 | |
4763 | \def\defopparsebody #1#2#3#4#5 {\begingroup\inENV % | |
4764 | \medbreak % | |
4765 | % Define the end token that this defining construct specifies | |
4766 | % so that it will exit this group. | |
4767 | \def#1{\endgraf\endgroup\medbreak}% | |
4768 | \def#2##1 ##2 {\def#4{##1}% | |
4769 | \begingroup\obeylines\activeparens\spacesplit{#3{##2}}}% | |
4770 | \parindent=0in | |
4771 | \advance\leftskip by \defbodyindent | |
4772 | \exdentamount=\defbodyindent | |
4773 | \begingroup\obeylines\activeparens\spacesplit{#3{#5}}} | |
4774 | ||
4775 | % These parsing functions are similar to the preceding ones | |
4776 | % except that they do not make parens into active characters. | |
4777 | % These are used for "variables" since they have no arguments. | |
4778 | ||
4779 | \def\defvarparsebody #1#2#3{\begingroup\inENV% Environment for definitionbody | |
4780 | \medbreak % | |
4781 | % Define the end token that this defining construct specifies | |
4782 | % so that it will exit this group. | |
4783 | \def#1{\endgraf\endgroup\medbreak}% | |
4784 | \def#2{\begingroup\obeylines\spacesplit#3}% | |
4785 | \parindent=0in | |
4786 | \advance\leftskip by \defbodyindent | |
4787 | \exdentamount=\defbodyindent | |
4788 | \begingroup % | |
4789 | \catcode 61=\active % | |
4790 | \obeylines\spacesplit#3} | |
4791 | ||
4792 | % This is used for \def{tp,vr}parsebody. It could probably be used for | |
4793 | % some of the others, too, with some judicious conditionals. | |
4794 | % | |
4795 | \def\parsebodycommon#1#2#3{% | |
4796 | \begingroup\inENV % | |
4797 | \medbreak % | |
4798 | % Define the end token that this defining construct specifies | |
4799 | % so that it will exit this group. | |
4800 | \def#1{\endgraf\endgroup\medbreak}% | |
4801 | \def#2##1 {\begingroup\obeylines\spacesplit{#3{##1}}}% | |
4802 | \parindent=0in | |
4803 | \advance\leftskip by \defbodyindent | |
4804 | \exdentamount=\defbodyindent | |
4805 | \begingroup\obeylines | |
4806 | } | |
4807 | ||
4808 | \def\defvrparsebody#1#2#3#4 {% | |
4809 | \parsebodycommon{#1}{#2}{#3}% | |
4810 | \spacesplit{#3{#4}}% | |
4811 | } | |
4812 | ||
4813 | % This loses on `@deftp {Data Type} {struct termios}' -- it thinks the | |
4814 | % type is just `struct', because we lose the braces in `{struct | |
4815 | % termios}' when \spacesplit reads its undelimited argument. Sigh. | |
4816 | % \let\deftpparsebody=\defvrparsebody | |
4817 | % | |
4818 | % So, to get around this, we put \empty in with the type name. That | |
4819 | % way, TeX won't find exactly `{...}' as an undelimited argument, and | |
4820 | % won't strip off the braces. | |
4821 | % | |
4822 | \def\deftpparsebody #1#2#3#4 {% | |
4823 | \parsebodycommon{#1}{#2}{#3}% | |
4824 | \spacesplit{\parsetpheaderline{#3{#4}}}\empty | |
4825 | } | |
4826 | ||
4827 | % Fine, but then we have to eventually remove the \empty *and* the | |
4828 | % braces (if any). That's what this does. | |
4829 | % | |
4830 | \def\removeemptybraces\empty#1\relax{#1} | |
4831 | ||
4832 | % After \spacesplit has done its work, this is called -- #1 is the final | |
4833 | % thing to call, #2 the type name (which starts with \empty), and #3 | |
4834 | % (which might be empty) the arguments. | |
4835 | % | |
4836 | \def\parsetpheaderline#1#2#3{% | |
4837 | #1{\removeemptybraces#2\relax}{#3}% | |
4838 | }% | |
4839 | ||
4840 | \def\defopvarparsebody #1#2#3#4#5 {\begingroup\inENV % | |
4841 | \medbreak % | |
4842 | % Define the end token that this defining construct specifies | |
4843 | % so that it will exit this group. | |
4844 | \def#1{\endgraf\endgroup\medbreak}% | |
4845 | \def#2##1 ##2 {\def#4{##1}% | |
4846 | \begingroup\obeylines\spacesplit{#3{##2}}}% | |
4847 | \parindent=0in | |
4848 | \advance\leftskip by \defbodyindent | |
4849 | \exdentamount=\defbodyindent | |
4850 | \begingroup\obeylines\spacesplit{#3{#5}}} | |
4851 | ||
4852 | % Split up #2 at the first space token. | |
4853 | % call #1 with two arguments: | |
4854 | % the first is all of #2 before the space token, | |
4855 | % the second is all of #2 after that space token. | |
4856 | % If #2 contains no space token, all of it is passed as the first arg | |
4857 | % and the second is passed as empty. | |
4858 | ||
4859 | {\obeylines | |
4860 | \gdef\spacesplit#1#2^^M{\endgroup\spacesplitfoo{#1}#2 \relax\spacesplitfoo}% | |
4861 | \long\gdef\spacesplitfoo#1#2 #3#4\spacesplitfoo{% | |
4862 | \ifx\relax #3% | |
4863 | #1{#2}{}\else #1{#2}{#3#4}\fi}} | |
4864 | ||
4865 | % So much for the things common to all kinds of definitions. | |
4866 | ||
4867 | % Define @defun. | |
4868 | ||
4869 | % First, define the processing that is wanted for arguments of \defun | |
4870 | % Use this to expand the args and terminate the paragraph they make up | |
4871 | ||
449f3b6c | 4872 | \def\defunargs#1{\functionparens \sl |
ff35fedc ILT |
4873 | % Expand, preventing hyphenation at `-' chars. |
4874 | % Note that groups don't affect changes in \hyphenchar. | |
449f3b6c AC |
4875 | % Set the font temporarily and use \font in case \setfont made \tensl a macro. |
4876 | {\tensl\hyphenchar\font=0}% | |
ff35fedc | 4877 | #1% |
449f3b6c | 4878 | {\tensl\hyphenchar\font=45}% |
ff35fedc ILT |
4879 | \ifnum\parencount=0 \else \errmessage{Unbalanced parentheses in @def}\fi% |
4880 | \interlinepenalty=10000 | |
4881 | \advance\rightskip by 0pt plus 1fil | |
4882 | \endgraf\nobreak\vskip -\parskip\nobreak | |
4883 | } | |
4884 | ||
4885 | \def\deftypefunargs #1{% | |
4886 | % Expand, preventing hyphenation at `-' chars. | |
4887 | % Note that groups don't affect changes in \hyphenchar. | |
4888 | % Use \boldbraxnoamp, not \functionparens, so that & is not special. | |
4889 | \boldbraxnoamp | |
4890 | \tclose{#1}% avoid \code because of side effects on active chars | |
4891 | \interlinepenalty=10000 | |
4892 | \advance\rightskip by 0pt plus 1fil | |
4893 | \endgraf\nobreak\vskip -\parskip\nobreak | |
4894 | } | |
4895 | ||
4896 | % Do complete processing of one @defun or @defunx line already parsed. | |
4897 | ||
4898 | % @deffn Command forward-char nchars | |
4899 | ||
4900 | \def\deffn{\defmethparsebody\Edeffn\deffnx\deffnheader} | |
4901 | ||
4902 | \def\deffnheader #1#2#3{\doind {fn}{\code{#2}}% | |
4903 | \begingroup\defname {#2}{#1}\defunargs{#3}\endgroup % | |
4904 | \catcode 61=\other % Turn off change made in \defparsebody | |
4905 | } | |
4906 | ||
4907 | % @defun == @deffn Function | |
4908 | ||
4909 | \def\defun{\defparsebody\Edefun\defunx\defunheader} | |
4910 | ||
4911 | \def\defunheader #1#2{\doind {fn}{\code{#1}}% Make entry in function index | |
449f3b6c | 4912 | \begingroup\defname {#1}{\putwordDeffunc}% |
ff35fedc ILT |
4913 | \defunargs {#2}\endgroup % |
4914 | \catcode 61=\other % Turn off change made in \defparsebody | |
4915 | } | |
4916 | ||
4917 | % @deftypefun int foobar (int @var{foo}, float @var{bar}) | |
4918 | ||
4919 | \def\deftypefun{\defparsebody\Edeftypefun\deftypefunx\deftypefunheader} | |
4920 | ||
4921 | % #1 is the data type. #2 is the name and args. | |
4922 | \def\deftypefunheader #1#2{\deftypefunheaderx{#1}#2 \relax} | |
4923 | % #1 is the data type, #2 the name, #3 the args. | |
4924 | \def\deftypefunheaderx #1#2 #3\relax{% | |
4925 | \doind {fn}{\code{#2}}% Make entry in function index | |
bd48e1a9 | 4926 | \begingroup\defname {\defheaderxcond#1\relax$.$#2}{\putwordDeftypefun}% |
ff35fedc ILT |
4927 | \deftypefunargs {#3}\endgroup % |
4928 | \catcode 61=\other % Turn off change made in \defparsebody | |
4929 | } | |
4930 | ||
4931 | % @deftypefn {Library Function} int foobar (int @var{foo}, float @var{bar}) | |
4932 | ||
4933 | \def\deftypefn{\defmethparsebody\Edeftypefn\deftypefnx\deftypefnheader} | |
4934 | ||
bd48e1a9 | 4935 | % \defheaderxcond#1\relax$.$ |
ff35fedc | 4936 | % puts #1 in @code, followed by a space, but does nothing if #1 is null. |
bd48e1a9 | 4937 | \def\defheaderxcond#1#2$.${\ifx#1\relax\else\code{#1#2} \fi} |
ff35fedc ILT |
4938 | |
4939 | % #1 is the classification. #2 is the data type. #3 is the name and args. | |
4940 | \def\deftypefnheader #1#2#3{\deftypefnheaderx{#1}{#2}#3 \relax} | |
4941 | % #1 is the classification, #2 the data type, #3 the name, #4 the args. | |
4942 | \def\deftypefnheaderx #1#2#3 #4\relax{% | |
4943 | \doind {fn}{\code{#3}}% Make entry in function index | |
4944 | \begingroup | |
4945 | \normalparens % notably, turn off `&' magic, which prevents | |
4946 | % at least some C++ text from working | |
bd48e1a9 | 4947 | \defname {\defheaderxcond#2\relax$.$#3}{#1}% |
ff35fedc ILT |
4948 | \deftypefunargs {#4}\endgroup % |
4949 | \catcode 61=\other % Turn off change made in \defparsebody | |
4950 | } | |
4951 | ||
4952 | % @defmac == @deffn Macro | |
4953 | ||
4954 | \def\defmac{\defparsebody\Edefmac\defmacx\defmacheader} | |
4955 | ||
4956 | \def\defmacheader #1#2{\doind {fn}{\code{#1}}% Make entry in function index | |
449f3b6c | 4957 | \begingroup\defname {#1}{\putwordDefmac}% |
ff35fedc ILT |
4958 | \defunargs {#2}\endgroup % |
4959 | \catcode 61=\other % Turn off change made in \defparsebody | |
4960 | } | |
4961 | ||
4962 | % @defspec == @deffn Special Form | |
4963 | ||
4964 | \def\defspec{\defparsebody\Edefspec\defspecx\defspecheader} | |
4965 | ||
4966 | \def\defspecheader #1#2{\doind {fn}{\code{#1}}% Make entry in function index | |
449f3b6c | 4967 | \begingroup\defname {#1}{\putwordDefspec}% |
ff35fedc ILT |
4968 | \defunargs {#2}\endgroup % |
4969 | \catcode 61=\other % Turn off change made in \defparsebody | |
4970 | } | |
4971 | ||
ff35fedc | 4972 | % @defop CATEGORY CLASS OPERATION ARG... |
449f3b6c | 4973 | % |
ff35fedc ILT |
4974 | \def\defop #1 {\def\defoptype{#1}% |
4975 | \defopparsebody\Edefop\defopx\defopheader\defoptype} | |
449f3b6c AC |
4976 | % |
4977 | \def\defopheader#1#2#3{% | |
ff35fedc | 4978 | \dosubind {fn}{\code{#2}}{\putwordon\ #1}% Make entry in function index |
449f3b6c | 4979 | \begingroup\defname {#2}{\defoptype\ \putwordon\ #1}% |
ff35fedc ILT |
4980 | \defunargs {#3}\endgroup % |
4981 | } | |
4982 | ||
449f3b6c AC |
4983 | % @deftypeop CATEGORY CLASS TYPE OPERATION ARG... |
4984 | % | |
4985 | \def\deftypeop #1 {\def\deftypeopcategory{#1}% | |
4986 | \deftypeopparsebody\Edeftypeop\deftypeopx\deftypeopheader | |
4987 | \deftypeopcategory} | |
4988 | % | |
4989 | % #1 is the class name, #2 the data type, #3 the operation name, #4 the args. | |
4990 | \def\deftypeopheader#1#2#3#4{% | |
4991 | \dosubind{fn}{\code{#3}}{\putwordon\ \code{#1}}% entry in function index | |
4992 | \begingroup | |
bd48e1a9 | 4993 | \defname{\defheaderxcond#2\relax$.$#3} |
449f3b6c AC |
4994 | {\deftypeopcategory\ \putwordon\ \code{#1}}% |
4995 | \deftypefunargs{#4}% | |
4996 | \endgroup | |
4997 | } | |
4998 | ||
4999 | % @deftypemethod CLASS TYPE METHOD ARG... | |
ff35fedc ILT |
5000 | % |
5001 | \def\deftypemethod{% | |
5002 | \deftypemethparsebody\Edeftypemethod\deftypemethodx\deftypemethodheader} | |
5003 | % | |
5004 | % #1 is the class name, #2 the data type, #3 the method name, #4 the args. | |
5005 | \def\deftypemethodheader#1#2#3#4{% | |
5006 | \dosubind{fn}{\code{#3}}{\putwordon\ \code{#1}}% entry in function index | |
5007 | \begingroup | |
bd48e1a9 | 5008 | \defname{\defheaderxcond#2\relax$.$#3}{\putwordMethodon\ \code{#1}}% |
ff35fedc ILT |
5009 | \deftypefunargs{#4}% |
5010 | \endgroup | |
5011 | } | |
5012 | ||
449f3b6c AC |
5013 | % @deftypeivar CLASS TYPE VARNAME |
5014 | % | |
5015 | \def\deftypeivar{% | |
5016 | \deftypemethparsebody\Edeftypeivar\deftypeivarx\deftypeivarheader} | |
5017 | % | |
5018 | % #1 is the class name, #2 the data type, #3 the variable name. | |
5019 | \def\deftypeivarheader#1#2#3{% | |
5020 | \dosubind{vr}{\code{#3}}{\putwordof\ \code{#1}}% entry in variable index | |
5021 | \begingroup | |
bd48e1a9 | 5022 | \defname{\defheaderxcond#2\relax$.$#3} |
ec9914b0 | 5023 | {\putwordInstanceVariableof\ \code{#1}}% |
449f3b6c AC |
5024 | \defvarargs{#3}% |
5025 | \endgroup | |
5026 | } | |
5027 | ||
ff35fedc ILT |
5028 | % @defmethod == @defop Method |
5029 | % | |
5030 | \def\defmethod{\defmethparsebody\Edefmethod\defmethodx\defmethodheader} | |
5031 | % | |
5032 | % #1 is the class name, #2 the method name, #3 the args. | |
5033 | \def\defmethodheader#1#2#3{% | |
5034 | \dosubind{fn}{\code{#2}}{\putwordon\ \code{#1}}% entry in function index | |
5035 | \begingroup | |
5036 | \defname{#2}{\putwordMethodon\ \code{#1}}% | |
5037 | \defunargs{#3}% | |
5038 | \endgroup | |
5039 | } | |
5040 | ||
5041 | % @defcv {Class Option} foo-class foo-flag | |
5042 | ||
5043 | \def\defcv #1 {\def\defcvtype{#1}% | |
5044 | \defopvarparsebody\Edefcv\defcvx\defcvarheader\defcvtype} | |
5045 | ||
5046 | \def\defcvarheader #1#2#3{% | |
449f3b6c AC |
5047 | \dosubind {vr}{\code{#2}}{\putwordof\ #1}% Make entry in var index |
5048 | \begingroup\defname {#2}{\defcvtype\ \putwordof\ #1}% | |
ff35fedc ILT |
5049 | \defvarargs {#3}\endgroup % |
5050 | } | |
5051 | ||
449f3b6c AC |
5052 | % @defivar CLASS VARNAME == @defcv {Instance Variable} CLASS VARNAME |
5053 | % | |
ff35fedc | 5054 | \def\defivar{\defvrparsebody\Edefivar\defivarx\defivarheader} |
449f3b6c AC |
5055 | % |
5056 | \def\defivarheader#1#2#3{% | |
5057 | \dosubind {vr}{\code{#2}}{\putwordof\ #1}% entry in var index | |
5058 | \begingroup | |
5059 | \defname{#2}{\putwordInstanceVariableof\ #1}% | |
5060 | \defvarargs{#3}% | |
5061 | \endgroup | |
ff35fedc ILT |
5062 | } |
5063 | ||
449f3b6c | 5064 | % @defvar |
ff35fedc ILT |
5065 | % First, define the processing that is wanted for arguments of @defvar. |
5066 | % This is actually simple: just print them in roman. | |
5067 | % This must expand the args and terminate the paragraph they make up | |
5068 | \def\defvarargs #1{\normalparens #1% | |
5069 | \interlinepenalty=10000 | |
5070 | \endgraf\nobreak\vskip -\parskip\nobreak} | |
5071 | ||
5072 | % @defvr Counter foo-count | |
5073 | ||
5074 | \def\defvr{\defvrparsebody\Edefvr\defvrx\defvrheader} | |
5075 | ||
5076 | \def\defvrheader #1#2#3{\doind {vr}{\code{#2}}% | |
5077 | \begingroup\defname {#2}{#1}\defvarargs{#3}\endgroup} | |
5078 | ||
5079 | % @defvar == @defvr Variable | |
5080 | ||
5081 | \def\defvar{\defvarparsebody\Edefvar\defvarx\defvarheader} | |
5082 | ||
5083 | \def\defvarheader #1#2{\doind {vr}{\code{#1}}% Make entry in var index | |
449f3b6c | 5084 | \begingroup\defname {#1}{\putwordDefvar}% |
ff35fedc ILT |
5085 | \defvarargs {#2}\endgroup % |
5086 | } | |
5087 | ||
5088 | % @defopt == @defvr {User Option} | |
5089 | ||
5090 | \def\defopt{\defvarparsebody\Edefopt\defoptx\defoptheader} | |
5091 | ||
5092 | \def\defoptheader #1#2{\doind {vr}{\code{#1}}% Make entry in var index | |
449f3b6c | 5093 | \begingroup\defname {#1}{\putwordDefopt}% |
ff35fedc ILT |
5094 | \defvarargs {#2}\endgroup % |
5095 | } | |
5096 | ||
5097 | % @deftypevar int foobar | |
5098 | ||
5099 | \def\deftypevar{\defvarparsebody\Edeftypevar\deftypevarx\deftypevarheader} | |
5100 | ||
5101 | % #1 is the data type. #2 is the name, perhaps followed by text that | |
5102 | % is actually part of the data type, which should not be put into the index. | |
5103 | \def\deftypevarheader #1#2{% | |
5104 | \dovarind#2 \relax% Make entry in variables index | |
bd48e1a9 | 5105 | \begingroup\defname {\defheaderxcond#1\relax$.$#2}{\putwordDeftypevar}% |
ff35fedc ILT |
5106 | \interlinepenalty=10000 |
5107 | \endgraf\nobreak\vskip -\parskip\nobreak | |
5108 | \endgroup} | |
5109 | \def\dovarind#1 #2\relax{\doind{vr}{\code{#1}}} | |
5110 | ||
5111 | % @deftypevr {Global Flag} int enable | |
5112 | ||
5113 | \def\deftypevr{\defvrparsebody\Edeftypevr\deftypevrx\deftypevrheader} | |
5114 | ||
5115 | \def\deftypevrheader #1#2#3{\dovarind#3 \relax% | |
bd48e1a9 | 5116 | \begingroup\defname {\defheaderxcond#2\relax$.$#3}{#1} |
ff35fedc ILT |
5117 | \interlinepenalty=10000 |
5118 | \endgraf\nobreak\vskip -\parskip\nobreak | |
5119 | \endgroup} | |
5120 | ||
ff35fedc ILT |
5121 | % Now define @deftp |
5122 | % Args are printed in bold, a slight difference from @defvar. | |
5123 | ||
5124 | \def\deftpargs #1{\bf \defvarargs{#1}} | |
5125 | ||
5126 | % @deftp Class window height width ... | |
5127 | ||
5128 | \def\deftp{\deftpparsebody\Edeftp\deftpx\deftpheader} | |
5129 | ||
5130 | \def\deftpheader #1#2#3{\doind {tp}{\code{#2}}% | |
5131 | \begingroup\defname {#2}{#1}\deftpargs{#3}\endgroup} | |
5132 | ||
449f3b6c AC |
5133 | % These definitions are used if you use @defunx (etc.) |
5134 | % anywhere other than immediately after a @defun or @defunx. | |
5135 | % | |
5136 | \def\defcvx#1 {\errmessage{@defcvx in invalid context}} | |
5137 | \def\deffnx#1 {\errmessage{@deffnx in invalid context}} | |
5138 | \def\defivarx#1 {\errmessage{@defivarx in invalid context}} | |
5139 | \def\defmacx#1 {\errmessage{@defmacx in invalid context}} | |
5140 | \def\defmethodx#1 {\errmessage{@defmethodx in invalid context}} | |
5141 | \def\defoptx #1 {\errmessage{@defoptx in invalid context}} | |
5142 | \def\defopx#1 {\errmessage{@defopx in invalid context}} | |
5143 | \def\defspecx#1 {\errmessage{@defspecx in invalid context}} | |
5144 | \def\deftpx#1 {\errmessage{@deftpx in invalid context}} | |
5145 | \def\deftypefnx#1 {\errmessage{@deftypefnx in invalid context}} | |
5146 | \def\deftypefunx#1 {\errmessage{@deftypefunx in invalid context}} | |
5147 | \def\deftypeivarx#1 {\errmessage{@deftypeivarx in invalid context}} | |
5148 | \def\deftypemethodx#1 {\errmessage{@deftypemethodx in invalid context}} | |
5149 | \def\deftypeopx#1 {\errmessage{@deftypeopx in invalid context}} | |
5150 | \def\deftypevarx#1 {\errmessage{@deftypevarx in invalid context}} | |
5151 | \def\deftypevrx#1 {\errmessage{@deftypevrx in invalid context}} | |
5152 | \def\defunx#1 {\errmessage{@defunx in invalid context}} | |
5153 | \def\defvarx#1 {\errmessage{@defvarx in invalid context}} | |
5154 | \def\defvrx#1 {\errmessage{@defvrx in invalid context}} | |
ff35fedc ILT |
5155 | |
5156 | ||
5157 | \message{macros,} | |
5158 | % @macro. | |
5159 | ||
449f3b6c | 5160 | % To do this right we need a feature of e-TeX, \scantokens, |
ff35fedc ILT |
5161 | % which we arrange to emulate with a temporary file in ordinary TeX. |
5162 | \ifx\eTeXversion\undefined | |
5163 | \newwrite\macscribble | |
5164 | \def\scanmacro#1{% | |
5165 | \begingroup \newlinechar`\^^M | |
449f3b6c AC |
5166 | % Undo catcode changes of \startcontents and \doprintindex |
5167 | \catcode`\@=0 \catcode`\\=12 \escapechar=`\@ | |
5168 | % Append \endinput to make sure that TeX does not see the ending newline. | |
5169 | \toks0={#1\endinput}% | |
ff35fedc | 5170 | \immediate\openout\macscribble=\jobname.tmp |
449f3b6c | 5171 | \immediate\write\macscribble{\the\toks0}% |
ff35fedc ILT |
5172 | \immediate\closeout\macscribble |
5173 | \let\xeatspaces\eatspaces | |
5174 | \input \jobname.tmp | |
5175 | \endgroup | |
5176 | } | |
5177 | \else | |
5178 | \def\scanmacro#1{% | |
5179 | \begingroup \newlinechar`\^^M | |
449f3b6c AC |
5180 | % Undo catcode changes of \startcontents and \doprintindex |
5181 | \catcode`\@=0 \catcode`\\=12 \escapechar=`\@ | |
5182 | \let\xeatspaces\eatspaces\scantokens{#1\endinput}\endgroup} | |
ff35fedc ILT |
5183 | \fi |
5184 | ||
5185 | \newcount\paramno % Count of parameters | |
5186 | \newtoks\macname % Macro name | |
5187 | \newif\ifrecursive % Is it recursive? | |
449f3b6c AC |
5188 | \def\macrolist{} % List of all defined macros in the form |
5189 | % \do\macro1\do\macro2... | |
ff35fedc ILT |
5190 | |
5191 | % Utility routines. | |
5192 | % Thisdoes \let #1 = #2, except with \csnames. | |
5193 | \def\cslet#1#2{% | |
5194 | \expandafter\expandafter | |
5195 | \expandafter\let | |
5196 | \expandafter\expandafter | |
5197 | \csname#1\endcsname | |
5198 | \csname#2\endcsname} | |
5199 | ||
5200 | % Trim leading and trailing spaces off a string. | |
5201 | % Concepts from aro-bend problem 15 (see CTAN). | |
5202 | {\catcode`\@=11 | |
5203 | \gdef\eatspaces #1{\expandafter\trim@\expandafter{#1 }} | |
5204 | \gdef\trim@ #1{\trim@@ @#1 @ #1 @ @@} | |
5205 | \gdef\trim@@ #1@ #2@ #3@@{\trim@@@\empty #2 @} | |
5206 | \def\unbrace#1{#1} | |
5207 | \unbrace{\gdef\trim@@@ #1 } #2@{#1} | |
5208 | } | |
5209 | ||
5210 | % Trim a single trailing ^^M off a string. | |
5211 | {\catcode`\^^M=12\catcode`\Q=3% | |
5212 | \gdef\eatcr #1{\eatcra #1Q^^MQ}% | |
5213 | \gdef\eatcra#1^^MQ{\eatcrb#1Q}% | |
5214 | \gdef\eatcrb#1Q#2Q{#1}% | |
5215 | } | |
5216 | ||
5217 | % Macro bodies are absorbed as an argument in a context where | |
5218 | % all characters are catcode 10, 11 or 12, except \ which is active | |
5219 | % (as in normal texinfo). It is necessary to change the definition of \. | |
5220 | ||
449f3b6c AC |
5221 | % It's necessary to have hard CRs when the macro is executed. This is |
5222 | % done by making ^^M (\endlinechar) catcode 12 when reading the macro | |
ff35fedc ILT |
5223 | % body, and then making it the \newlinechar in \scanmacro. |
5224 | ||
5225 | \def\macrobodyctxt{% | |
5226 | \catcode`\~=12 | |
5227 | \catcode`\^=12 | |
5228 | \catcode`\_=12 | |
5229 | \catcode`\|=12 | |
5230 | \catcode`\<=12 | |
5231 | \catcode`\>=12 | |
5232 | \catcode`\+=12 | |
5233 | \catcode`\{=12 | |
5234 | \catcode`\}=12 | |
5235 | \catcode`\@=12 | |
5236 | \catcode`\^^M=12 | |
5237 | \usembodybackslash} | |
5238 | ||
449f3b6c AC |
5239 | \def\macroargctxt{% |
5240 | \catcode`\~=12 | |
5241 | \catcode`\^=12 | |
5242 | \catcode`\_=12 | |
5243 | \catcode`\|=12 | |
5244 | \catcode`\<=12 | |
5245 | \catcode`\>=12 | |
5246 | \catcode`\+=12 | |
5247 | \catcode`\@=12 | |
5248 | \catcode`\\=12} | |
5249 | ||
ff35fedc | 5250 | % \mbodybackslash is the definition of \ in @macro bodies. |
449f3b6c | 5251 | % It maps \foo\ => \csname macarg.foo\endcsname => #N |
ff35fedc ILT |
5252 | % where N is the macro parameter number. |
5253 | % We define \csname macarg.\endcsname to be \realbackslash, so | |
5254 | % \\ in macro replacement text gets you a backslash. | |
5255 | ||
5256 | {\catcode`@=0 @catcode`@\=@active | |
5257 | @gdef@usembodybackslash{@let\=@mbodybackslash} | |
5258 | @gdef@mbodybackslash#1\{@csname macarg.#1@endcsname} | |
5259 | } | |
5260 | \expandafter\def\csname macarg.\endcsname{\realbackslash} | |
5261 | ||
5262 | \def\macro{\recursivefalse\parsearg\macroxxx} | |
5263 | \def\rmacro{\recursivetrue\parsearg\macroxxx} | |
5264 | ||
5265 | \def\macroxxx#1{% | |
5266 | \getargs{#1}% now \macname is the macname and \argl the arglist | |
5267 | \ifx\argl\empty % no arguments | |
5268 | \paramno=0% | |
5269 | \else | |
449f3b6c | 5270 | \expandafter\parsemargdef \argl;% |
ff35fedc | 5271 | \fi |
449f3b6c | 5272 | \if1\csname ismacro.\the\macname\endcsname |
ff35fedc | 5273 | \message{Warning: redefining \the\macname}% |
449f3b6c AC |
5274 | \else |
5275 | \expandafter\ifx\csname \the\macname\endcsname \relax | |
5276 | \else \errmessage{The name \the\macname\space is reserved}\fi | |
5277 | \global\cslet{macsave.\the\macname}{\the\macname}% | |
5278 | \global\expandafter\let\csname ismacro.\the\macname\endcsname=1% | |
5279 | % Add the macroname to \macrolist | |
5280 | \toks0 = \expandafter{\macrolist\do}% | |
5281 | \xdef\macrolist{\the\toks0 | |
5282 | \expandafter\noexpand\csname\the\macname\endcsname}% | |
ff35fedc ILT |
5283 | \fi |
5284 | \begingroup \macrobodyctxt | |
5285 | \ifrecursive \expandafter\parsermacbody | |
449f3b6c | 5286 | \else \expandafter\parsemacbody |
ff35fedc ILT |
5287 | \fi} |
5288 | ||
5289 | \def\unmacro{\parsearg\unmacroxxx} | |
5290 | \def\unmacroxxx#1{% | |
449f3b6c AC |
5291 | \if1\csname ismacro.#1\endcsname |
5292 | \global\cslet{#1}{macsave.#1}% | |
5293 | \global\expandafter\let \csname ismacro.#1\endcsname=0% | |
5294 | % Remove the macro name from \macrolist | |
5295 | \begingroup | |
5296 | \edef\tempa{\expandafter\noexpand\csname#1\endcsname}% | |
5297 | \def\do##1{% | |
5298 | \def\tempb{##1}% | |
5299 | \ifx\tempa\tempb | |
5300 | % remove this | |
5301 | \else | |
5302 | \toks0 = \expandafter{\newmacrolist\do}% | |
5303 | \edef\newmacrolist{\the\toks0\expandafter\noexpand\tempa}% | |
5304 | \fi}% | |
5305 | \def\newmacrolist{}% | |
5306 | % Execute macro list to define \newmacrolist | |
5307 | \macrolist | |
5308 | \global\let\macrolist\newmacrolist | |
5309 | \endgroup | |
ff35fedc | 5310 | \else |
449f3b6c | 5311 | \errmessage{Macro #1 not defined}% |
ff35fedc ILT |
5312 | \fi |
5313 | } | |
5314 | ||
5315 | % This makes use of the obscure feature that if the last token of a | |
5316 | % <parameter list> is #, then the preceding argument is delimited by | |
5317 | % an opening brace, and that opening brace is not consumed. | |
5318 | \def\getargs#1{\getargsxxx#1{}} | |
5319 | \def\getargsxxx#1#{\getmacname #1 \relax\getmacargs} | |
5320 | \def\getmacname #1 #2\relax{\macname={#1}} | |
5321 | \def\getmacargs#1{\def\argl{#1}} | |
5322 | ||
5323 | % Parse the optional {params} list. Set up \paramno and \paramlist | |
5324 | % so \defmacro knows what to do. Define \macarg.blah for each blah | |
5325 | % in the params list, to be ##N where N is the position in that list. | |
5326 | % That gets used by \mbodybackslash (above). | |
5327 | ||
5328 | % We need to get `macro parameter char #' into several definitions. | |
5329 | % The technique used is stolen from LaTeX: let \hash be something | |
5330 | % unexpandable, insert that wherever you need a #, and then redefine | |
5331 | % it to # just before using the token list produced. | |
5332 | % | |
5333 | % The same technique is used to protect \eatspaces till just before | |
5334 | % the macro is used. | |
5335 | ||
5336 | \def\parsemargdef#1;{\paramno=0\def\paramlist{}% | |
5337 | \let\hash\relax\let\xeatspaces\relax\parsemargdefxxx#1,;,} | |
5338 | \def\parsemargdefxxx#1,{% | |
5339 | \if#1;\let\next=\relax | |
5340 | \else \let\next=\parsemargdefxxx | |
5341 | \advance\paramno by 1% | |
5342 | \expandafter\edef\csname macarg.\eatspaces{#1}\endcsname | |
5343 | {\xeatspaces{\hash\the\paramno}}% | |
5344 | \edef\paramlist{\paramlist\hash\the\paramno,}% | |
5345 | \fi\next} | |
5346 | ||
5347 | % These two commands read recursive and nonrecursive macro bodies. | |
5348 | % (They're different since rec and nonrec macros end differently.) | |
5349 | ||
5350 | \long\def\parsemacbody#1@end macro% | |
5351 | {\xdef\temp{\eatcr{#1}}\endgroup\defmacro}% | |
5352 | \long\def\parsermacbody#1@end rmacro% | |
5353 | {\xdef\temp{\eatcr{#1}}\endgroup\defmacro}% | |
5354 | ||
5355 | % This defines the macro itself. There are six cases: recursive and | |
5356 | % nonrecursive macros of zero, one, and many arguments. | |
5357 | % Much magic with \expandafter here. | |
5358 | % \xdef is used so that macro definitions will survive the file | |
5359 | % they're defined in; @include reads the file inside a group. | |
5360 | \def\defmacro{% | |
5361 | \let\hash=##% convert placeholders to macro parameter chars | |
5362 | \ifrecursive | |
5363 | \ifcase\paramno | |
5364 | % 0 | |
5365 | \expandafter\xdef\csname\the\macname\endcsname{% | |
5366 | \noexpand\scanmacro{\temp}}% | |
5367 | \or % 1 | |
5368 | \expandafter\xdef\csname\the\macname\endcsname{% | |
449f3b6c AC |
5369 | \bgroup\noexpand\macroargctxt |
5370 | \noexpand\braceorline | |
5371 | \expandafter\noexpand\csname\the\macname xxx\endcsname}% | |
ff35fedc | 5372 | \expandafter\xdef\csname\the\macname xxx\endcsname##1{% |
449f3b6c | 5373 | \egroup\noexpand\scanmacro{\temp}}% |
ff35fedc | 5374 | \else % many |
449f3b6c AC |
5375 | \expandafter\xdef\csname\the\macname\endcsname{% |
5376 | \bgroup\noexpand\macroargctxt | |
5377 | \noexpand\csname\the\macname xx\endcsname}% | |
5378 | \expandafter\xdef\csname\the\macname xx\endcsname##1{% | |
5379 | \expandafter\noexpand\csname\the\macname xxx\endcsname ##1,}% | |
ff35fedc ILT |
5380 | \expandafter\expandafter |
5381 | \expandafter\xdef | |
5382 | \expandafter\expandafter | |
449f3b6c AC |
5383 | \csname\the\macname xxx\endcsname |
5384 | \paramlist{\egroup\noexpand\scanmacro{\temp}}% | |
ff35fedc ILT |
5385 | \fi |
5386 | \else | |
5387 | \ifcase\paramno | |
5388 | % 0 | |
5389 | \expandafter\xdef\csname\the\macname\endcsname{% | |
5390 | \noexpand\norecurse{\the\macname}% | |
5391 | \noexpand\scanmacro{\temp}\egroup}% | |
5392 | \or % 1 | |
5393 | \expandafter\xdef\csname\the\macname\endcsname{% | |
449f3b6c AC |
5394 | \bgroup\noexpand\macroargctxt |
5395 | \noexpand\braceorline | |
5396 | \expandafter\noexpand\csname\the\macname xxx\endcsname}% | |
ff35fedc | 5397 | \expandafter\xdef\csname\the\macname xxx\endcsname##1{% |
449f3b6c | 5398 | \egroup |
ff35fedc ILT |
5399 | \noexpand\norecurse{\the\macname}% |
5400 | \noexpand\scanmacro{\temp}\egroup}% | |
5401 | \else % many | |
449f3b6c AC |
5402 | \expandafter\xdef\csname\the\macname\endcsname{% |
5403 | \bgroup\noexpand\macroargctxt | |
5404 | \expandafter\noexpand\csname\the\macname xx\endcsname}% | |
5405 | \expandafter\xdef\csname\the\macname xx\endcsname##1{% | |
5406 | \expandafter\noexpand\csname\the\macname xxx\endcsname ##1,}% | |
ff35fedc ILT |
5407 | \expandafter\expandafter |
5408 | \expandafter\xdef | |
5409 | \expandafter\expandafter | |
5410 | \csname\the\macname xxx\endcsname | |
5411 | \paramlist{% | |
449f3b6c | 5412 | \egroup |
ff35fedc ILT |
5413 | \noexpand\norecurse{\the\macname}% |
5414 | \noexpand\scanmacro{\temp}\egroup}% | |
5415 | \fi | |
5416 | \fi} | |
5417 | ||
5418 | \def\norecurse#1{\bgroup\cslet{#1}{macsave.#1}} | |
5419 | ||
5420 | % \braceorline decides whether the next nonwhitespace character is a | |
5421 | % {. If so it reads up to the closing }, if not, it reads the whole | |
5422 | % line. Whatever was read is then fed to the next control sequence | |
5423 | % as an argument (by \parsebrace or \parsearg) | |
5424 | \def\braceorline#1{\let\next=#1\futurelet\nchar\braceorlinexxx} | |
5425 | \def\braceorlinexxx{% | |
5426 | \ifx\nchar\bgroup\else | |
449f3b6c | 5427 | \expandafter\parsearg |
ff35fedc ILT |
5428 | \fi \next} |
5429 | ||
449f3b6c AC |
5430 | % We mant to disable all macros during \shipout so that they are not |
5431 | % expanded by \write. | |
5432 | \def\turnoffmacros{\begingroup \def\do##1{\let\noexpand##1=\relax}% | |
5433 | \edef\next{\macrolist}\expandafter\endgroup\next} | |
5434 | ||
5435 | ||
5436 | % @alias. | |
5437 | % We need some trickery to remove the optional spaces around the equal | |
5438 | % sign. Just make them active and then expand them all to nothing. | |
5439 | \def\alias{\begingroup\obeyspaces\parsearg\aliasxxx} | |
5440 | \def\aliasxxx #1{\aliasyyy#1\relax} | |
5441 | \def\aliasyyy #1=#2\relax{\ignoreactivespaces | |
5442 | \edef\next{\global\let\expandafter\noexpand\csname#1\endcsname=% | |
5443 | \expandafter\noexpand\csname#2\endcsname}% | |
5444 | \expandafter\endgroup\next} | |
5445 | ||
ff35fedc ILT |
5446 | |
5447 | \message{cross references,} | |
449f3b6c AC |
5448 | % @xref etc. |
5449 | ||
ff35fedc ILT |
5450 | \newwrite\auxfile |
5451 | ||
5452 | \newif\ifhavexrefs % True if xref values are known. | |
5453 | \newif\ifwarnedxrefs % True if we warned once that they aren't known. | |
5454 | ||
5455 | % @inforef is relatively simple. | |
5456 | \def\inforef #1{\inforefzzz #1,,,,**} | |
5457 | \def\inforefzzz #1,#2,#3,#4**{\putwordSee{} \putwordInfo{} \putwordfile{} \file{\ignorespaces #3{}}, | |
5458 | node \samp{\ignorespaces#1{}}} | |
5459 | ||
5460 | % @node's job is to define \lastnode. | |
5461 | \def\node{\ENVcheck\parsearg\nodezzz} | |
5462 | \def\nodezzz#1{\nodexxx [#1,]} | |
5463 | \def\nodexxx[#1,#2]{\gdef\lastnode{#1}} | |
5464 | \let\nwnode=\node | |
5465 | \let\lastnode=\relax | |
5466 | ||
5467 | % The sectioning commands (@chapter, etc.) call these. | |
5468 | \def\donoderef{% | |
5469 | \ifx\lastnode\relax\else | |
5470 | \expandafter\expandafter\expandafter\setref{\lastnode}% | |
5471 | {Ysectionnumberandtype}% | |
5472 | \global\let\lastnode=\relax | |
5473 | \fi | |
5474 | } | |
5475 | \def\unnumbnoderef{% | |
5476 | \ifx\lastnode\relax\else | |
5477 | \expandafter\expandafter\expandafter\setref{\lastnode}{Ynothing}% | |
5478 | \global\let\lastnode=\relax | |
5479 | \fi | |
5480 | } | |
5481 | \def\appendixnoderef{% | |
5482 | \ifx\lastnode\relax\else | |
5483 | \expandafter\expandafter\expandafter\setref{\lastnode}% | |
5484 | {Yappendixletterandtype}% | |
5485 | \global\let\lastnode=\relax | |
5486 | \fi | |
5487 | } | |
5488 | ||
5489 | ||
5490 | % @anchor{NAME} -- define xref target at arbitrary point. | |
449f3b6c AC |
5491 | % |
5492 | \newcount\savesfregister | |
5493 | \gdef\savesf{\relax \ifhmode \savesfregister=\spacefactor \fi} | |
5494 | \gdef\restoresf{\relax \ifhmode \spacefactor=\savesfregister \fi} | |
5495 | \gdef\anchor#1{\savesf \setref{#1}{Ynothing}\restoresf \ignorespaces} | |
ff35fedc ILT |
5496 | |
5497 | % \setref{NAME}{SNT} defines a cross-reference point NAME, namely | |
5498 | % NAME-title, NAME-pg, and NAME-SNT. Called from \foonoderef. We have | |
5499 | % to set \indexdummies so commands such as @code in a section title | |
5500 | % aren't expanded. It would be nicer not to expand the titles in the | |
5501 | % first place, but there's so many layers that that is hard to do. | |
449f3b6c | 5502 | % |
ff35fedc ILT |
5503 | \def\setref#1#2{{% |
5504 | \indexdummies | |
449f3b6c | 5505 | \pdfmkdest{#1}% |
ff35fedc ILT |
5506 | \dosetq{#1-title}{Ytitle}% |
5507 | \dosetq{#1-pg}{Ypagenumber}% | |
449f3b6c | 5508 | \dosetq{#1-snt}{#2}% |
ff35fedc ILT |
5509 | }} |
5510 | ||
5511 | % @xref, @pxref, and @ref generate cross-references. For \xrefX, #1 is | |
5512 | % the node name, #2 the name of the Info cross-reference, #3 the printed | |
5513 | % node name, #4 the name of the Info file, #5 the name of the printed | |
5514 | % manual. All but the node name can be omitted. | |
5515 | % | |
5516 | \def\pxref#1{\putwordsee{} \xrefX[#1,,,,,,,]} | |
5517 | \def\xref#1{\putwordSee{} \xrefX[#1,,,,,,,]} | |
5518 | \def\ref#1{\xrefX[#1,,,,,,,]} | |
5519 | \def\xrefX[#1,#2,#3,#4,#5,#6]{\begingroup | |
449f3b6c | 5520 | \unsepspaces |
ff35fedc ILT |
5521 | \def\printedmanual{\ignorespaces #5}% |
5522 | \def\printednodename{\ignorespaces #3}% | |
5523 | \setbox1=\hbox{\printedmanual}% | |
5524 | \setbox0=\hbox{\printednodename}% | |
5525 | \ifdim \wd0 = 0pt | |
5526 | % No printed node name was explicitly given. | |
5527 | \expandafter\ifx\csname SETxref-automatic-section-title\endcsname\relax | |
5528 | % Use the node name inside the square brackets. | |
5529 | \def\printednodename{\ignorespaces #1}% | |
5530 | \else | |
5531 | % Use the actual chapter/section title appear inside | |
5532 | % the square brackets. Use the real section title if we have it. | |
5533 | \ifdim \wd1 > 0pt | |
5534 | % It is in another manual, so we don't have it. | |
5535 | \def\printednodename{\ignorespaces #1}% | |
5536 | \else | |
5537 | \ifhavexrefs | |
5538 | % We know the real title if we have the xref values. | |
5539 | \def\printednodename{\refx{#1-title}{}}% | |
5540 | \else | |
5541 | % Otherwise just copy the Info node name. | |
5542 | \def\printednodename{\ignorespaces #1}% | |
5543 | \fi% | |
5544 | \fi | |
5545 | \fi | |
5546 | \fi | |
5547 | % | |
5548 | % If we use \unhbox0 and \unhbox1 to print the node names, TeX does not | |
5549 | % insert empty discretionaries after hyphens, which means that it will | |
5550 | % not find a line break at a hyphen in a node names. Since some manuals | |
5551 | % are best written with fairly long node names, containing hyphens, this | |
5552 | % is a loss. Therefore, we give the text of the node name again, so it | |
5553 | % is as if TeX is seeing it for the first time. | |
449f3b6c AC |
5554 | \ifpdf |
5555 | \leavevmode | |
5556 | \getfilename{#4}% | |
bd48e1a9 AC |
5557 | {\normalturnoffactive |
5558 | \ifnum\filenamelength>0 | |
5559 | \startlink attr{/Border [0 0 0]}% | |
5560 | goto file{\the\filename.pdf} name{#1}% | |
5561 | \else | |
5562 | \startlink attr{/Border [0 0 0]}% | |
5563 | goto name{#1}% | |
5564 | \fi | |
5565 | }% | |
449f3b6c AC |
5566 | \linkcolor |
5567 | \fi | |
5568 | % | |
ff35fedc | 5569 | \ifdim \wd1 > 0pt |
449f3b6c | 5570 | \putwordsection{} ``\printednodename'' \putwordin{} \cite{\printedmanual}% |
ff35fedc ILT |
5571 | \else |
5572 | % _ (for example) has to be the character _ for the purposes of the | |
5573 | % control sequence corresponding to the node, but it has to expand | |
5574 | % into the usual \leavevmode...\vrule stuff for purposes of | |
5575 | % printing. So we \turnoffactive for the \refx-snt, back on for the | |
5576 | % printing, back off for the \refx-pg. | |
5577 | {\normalturnoffactive | |
5578 | % Only output a following space if the -snt ref is nonempty; for | |
5579 | % @unnumbered and @anchor, it won't be. | |
5580 | \setbox2 = \hbox{\ignorespaces \refx{#1-snt}{}}% | |
5581 | \ifdim \wd2 > 0pt \refx{#1-snt}\space\fi | |
5582 | }% | |
449f3b6c | 5583 | % [mynode], |
ff35fedc ILT |
5584 | [\printednodename],\space |
5585 | % page 3 | |
5586 | \turnoffactive \putwordpage\tie\refx{#1-pg}{}% | |
5587 | \fi | |
449f3b6c | 5588 | \endlink |
ff35fedc ILT |
5589 | \endgroup} |
5590 | ||
5591 | % \dosetq is the interface for calls from other macros | |
5592 | ||
5593 | % Use \normalturnoffactive so that punctuation chars such as underscore | |
5594 | % and backslash work in node names. (\turnoffactive doesn't do \.) | |
5595 | \def\dosetq#1#2{% | |
449f3b6c | 5596 | {\let\folio=0% |
ff35fedc ILT |
5597 | \normalturnoffactive |
5598 | \edef\next{\write\auxfile{\internalsetq{#1}{#2}}}% | |
5599 | \iflinks | |
5600 | \next | |
5601 | \fi | |
5602 | }% | |
5603 | } | |
5604 | ||
5605 | % \internalsetq {foo}{page} expands into | |
5606 | % CHARACTERS 'xrdef {foo}{...expansion of \Ypage...} | |
5607 | % When the aux file is read, ' is the escape character | |
5608 | ||
5609 | \def\internalsetq #1#2{'xrdef {#1}{\csname #2\endcsname}} | |
5610 | ||
5611 | % Things to be expanded by \internalsetq | |
5612 | ||
5613 | \def\Ypagenumber{\folio} | |
5614 | ||
5615 | \def\Ytitle{\thissection} | |
5616 | ||
5617 | \def\Ynothing{} | |
5618 | ||
5619 | \def\Ysectionnumberandtype{% | |
5620 | \ifnum\secno=0 \putwordChapter\xreftie\the\chapno % | |
5621 | \else \ifnum \subsecno=0 \putwordSection\xreftie\the\chapno.\the\secno % | |
5622 | \else \ifnum \subsubsecno=0 % | |
5623 | \putwordSection\xreftie\the\chapno.\the\secno.\the\subsecno % | |
5624 | \else % | |
5625 | \putwordSection\xreftie\the\chapno.\the\secno.\the\subsecno.\the\subsubsecno % | |
5626 | \fi \fi \fi } | |
5627 | ||
5628 | \def\Yappendixletterandtype{% | |
5629 | \ifnum\secno=0 \putwordAppendix\xreftie'char\the\appendixno{}% | |
5630 | \else \ifnum \subsecno=0 \putwordSection\xreftie'char\the\appendixno.\the\secno % | |
5631 | \else \ifnum \subsubsecno=0 % | |
5632 | \putwordSection\xreftie'char\the\appendixno.\the\secno.\the\subsecno % | |
5633 | \else % | |
5634 | \putwordSection\xreftie'char\the\appendixno.\the\secno.\the\subsecno.\the\subsubsecno % | |
5635 | \fi \fi \fi } | |
5636 | ||
5637 | \gdef\xreftie{'tie} | |
5638 | ||
5639 | % Use TeX 3.0's \inputlineno to get the line number, for better error | |
5640 | % messages, but if we're using an old version of TeX, don't do anything. | |
5641 | % | |
5642 | \ifx\inputlineno\thisisundefined | |
5643 | \let\linenumber = \empty % Non-3.0. | |
5644 | \else | |
5645 | \def\linenumber{\the\inputlineno:\space} | |
5646 | \fi | |
5647 | ||
5648 | % Define \refx{NAME}{SUFFIX} to reference a cross-reference string named NAME. | |
5649 | % If its value is nonempty, SUFFIX is output afterward. | |
5650 | ||
5651 | \def\refx#1#2{% | |
5652 | \expandafter\ifx\csname X#1\endcsname\relax | |
5653 | % If not defined, say something at least. | |
5654 | \angleleft un\-de\-fined\angleright | |
5655 | \iflinks | |
5656 | \ifhavexrefs | |
5657 | \message{\linenumber Undefined cross reference `#1'.}% | |
5658 | \else | |
5659 | \ifwarnedxrefs\else | |
5660 | \global\warnedxrefstrue | |
5661 | \message{Cross reference values unknown; you must run TeX again.}% | |
5662 | \fi | |
5663 | \fi | |
5664 | \fi | |
5665 | \else | |
5666 | % It's defined, so just use it. | |
5667 | \csname X#1\endcsname | |
5668 | \fi | |
5669 | #2% Output the suffix in any case. | |
5670 | } | |
5671 | ||
5672 | % This is the macro invoked by entries in the aux file. | |
449f3b6c | 5673 | % |
ff35fedc ILT |
5674 | \def\xrdef#1{\begingroup |
5675 | % Reenable \ as an escape while reading the second argument. | |
5676 | \catcode`\\ = 0 | |
5677 | \afterassignment\endgroup | |
5678 | \expandafter\gdef\csname X#1\endcsname | |
5679 | } | |
5680 | ||
5681 | % Read the last existing aux file, if any. No error if none exists. | |
5682 | \def\readauxfile{\begingroup | |
5683 | \catcode`\^^@=\other | |
5684 | \catcode`\^^A=\other | |
5685 | \catcode`\^^B=\other | |
5686 | \catcode`\^^C=\other | |
5687 | \catcode`\^^D=\other | |
5688 | \catcode`\^^E=\other | |
5689 | \catcode`\^^F=\other | |
5690 | \catcode`\^^G=\other | |
5691 | \catcode`\^^H=\other | |
5692 | \catcode`\^^K=\other | |
5693 | \catcode`\^^L=\other | |
5694 | \catcode`\^^N=\other | |
5695 | \catcode`\^^P=\other | |
5696 | \catcode`\^^Q=\other | |
5697 | \catcode`\^^R=\other | |
5698 | \catcode`\^^S=\other | |
5699 | \catcode`\^^T=\other | |
5700 | \catcode`\^^U=\other | |
5701 | \catcode`\^^V=\other | |
5702 | \catcode`\^^W=\other | |
5703 | \catcode`\^^X=\other | |
5704 | \catcode`\^^Z=\other | |
5705 | \catcode`\^^[=\other | |
5706 | \catcode`\^^\=\other | |
5707 | \catcode`\^^]=\other | |
5708 | \catcode`\^^^=\other | |
5709 | \catcode`\^^_=\other | |
5710 | \catcode`\@=\other | |
5711 | \catcode`\^=\other | |
5712 | % It was suggested to define this as 7, which would allow ^^e4 etc. | |
5713 | % in xref tags, i.e., node names. But since ^^e4 notation isn't | |
5714 | % supported in the main text, it doesn't seem desirable. Furthermore, | |
5715 | % that is not enough: for node names that actually contain a ^ | |
5716 | % character, we would end up writing a line like this: 'xrdef {'hat | |
5717 | % b-title}{'hat b} and \xrdef does a \csname...\endcsname on the first | |
5718 | % argument, and \hat is not an expandable control sequence. It could | |
5719 | % all be worked out, but why? Either we support ^^ or we don't. | |
5720 | % | |
5721 | % The other change necessary for this was to define \auxhat: | |
5722 | % \def\auxhat{\def^{'hat }}% extra space so ok if followed by letter | |
5723 | % and then to call \auxhat in \setq. | |
5724 | % | |
5725 | \catcode`\~=\other | |
5726 | \catcode`\[=\other | |
5727 | \catcode`\]=\other | |
5728 | \catcode`\"=\other | |
5729 | \catcode`\_=\other | |
5730 | \catcode`\|=\other | |
5731 | \catcode`\<=\other | |
5732 | \catcode`\>=\other | |
5733 | \catcode`\$=\other | |
5734 | \catcode`\#=\other | |
5735 | \catcode`\&=\other | |
5736 | \catcode`+=\other % avoid \+ for paranoia even though we've turned it off | |
5737 | % Make the characters 128-255 be printing characters | |
5738 | {% | |
5739 | \count 1=128 | |
5740 | \def\loop{% | |
5741 | \catcode\count 1=\other | |
5742 | \advance\count 1 by 1 | |
5743 | \ifnum \count 1<256 \loop \fi | |
5744 | }% | |
5745 | }% | |
5746 | % The aux file uses ' as the escape (for now). | |
5747 | % Turn off \ as an escape so we do not lose on | |
5748 | % entries which were dumped with control sequences in their names. | |
5749 | % For example, 'xrdef {$\leq $-fun}{page ...} made by @defun ^^ | |
5750 | % Reference to such entries still does not work the way one would wish, | |
5751 | % but at least they do not bomb out when the aux file is read in. | |
5752 | \catcode`\{=1 | |
5753 | \catcode`\}=2 | |
5754 | \catcode`\%=\other | |
5755 | \catcode`\'=0 | |
5756 | \catcode`\\=\other | |
5757 | % | |
5758 | \openin 1 \jobname.aux | |
5759 | \ifeof 1 \else | |
5760 | \closein 1 | |
5761 | \input \jobname.aux | |
5762 | \global\havexrefstrue | |
5763 | \global\warnedobstrue | |
5764 | \fi | |
5765 | % Open the new aux file. TeX will close it automatically at exit. | |
5766 | \openout\auxfile=\jobname.aux | |
5767 | \endgroup} | |
5768 | ||
5769 | ||
5770 | % Footnotes. | |
5771 | ||
5772 | \newcount \footnoteno | |
5773 | ||
5774 | % The trailing space in the following definition for supereject is | |
5775 | % vital for proper filling; pages come out unaligned when you do a | |
5776 | % pagealignmacro call if that space before the closing brace is | |
5777 | % removed. (Generally, numeric constants should always be followed by a | |
5778 | % space to prevent strange expansion errors.) | |
5779 | \def\supereject{\par\penalty -20000\footnoteno =0 } | |
5780 | ||
5781 | % @footnotestyle is meaningful for info output only. | |
5782 | \let\footnotestyle=\comment | |
5783 | ||
5784 | \let\ptexfootnote=\footnote | |
5785 | ||
5786 | {\catcode `\@=11 | |
5787 | % | |
5788 | % Auto-number footnotes. Otherwise like plain. | |
5789 | \gdef\footnote{% | |
5790 | \global\advance\footnoteno by \@ne | |
5791 | \edef\thisfootno{$^{\the\footnoteno}$}% | |
5792 | % | |
5793 | % In case the footnote comes at the end of a sentence, preserve the | |
5794 | % extra spacing after we do the footnote number. | |
5795 | \let\@sf\empty | |
5796 | \ifhmode\edef\@sf{\spacefactor\the\spacefactor}\/\fi | |
5797 | % | |
5798 | % Remove inadvertent blank space before typesetting the footnote number. | |
5799 | \unskip | |
5800 | \thisfootno\@sf | |
5801 | \footnotezzz | |
5802 | }% | |
5803 | ||
5804 | % Don't bother with the trickery in plain.tex to not require the | |
5805 | % footnote text as a parameter. Our footnotes don't need to be so general. | |
5806 | % | |
5807 | % Oh yes, they do; otherwise, @ifset and anything else that uses | |
5808 | % \parseargline fail inside footnotes because the tokens are fixed when | |
5809 | % the footnote is read. --karl, 16nov96. | |
5810 | % | |
5811 | \long\gdef\footnotezzz{\insert\footins\bgroup | |
5812 | % We want to typeset this text as a normal paragraph, even if the | |
5813 | % footnote reference occurs in (for example) a display environment. | |
5814 | % So reset some parameters. | |
5815 | \interlinepenalty\interfootnotelinepenalty | |
5816 | \splittopskip\ht\strutbox % top baseline for broken footnotes | |
5817 | \splitmaxdepth\dp\strutbox | |
5818 | \floatingpenalty\@MM | |
5819 | \leftskip\z@skip | |
5820 | \rightskip\z@skip | |
5821 | \spaceskip\z@skip | |
5822 | \xspaceskip\z@skip | |
5823 | \parindent\defaultparindent | |
5824 | % | |
449f3b6c AC |
5825 | \smallfonts \rm |
5826 | % | |
bd48e1a9 AC |
5827 | % Because we use hanging indentation in footnotes, a @noindent appears |
5828 | % to exdent this text, so make it be a no-op. makeinfo does not use | |
5829 | % hanging indentation so @noindent can still be needed within footnote | |
5830 | % text after an @example or the like (not that this is good style). | |
5831 | \let\noindent = \relax | |
5832 | % | |
5833 | % Hang the footnote text off the number. Use \everypar in case the | |
5834 | % footnote extends for more than one paragraph. | |
5835 | \everypar = {\hang}% | |
ff35fedc ILT |
5836 | \textindent{\thisfootno}% |
5837 | % | |
5838 | % Don't crash into the line above the footnote text. Since this | |
5839 | % expands into a box, it must come within the paragraph, lest it | |
5840 | % provide a place where TeX can split the footnote. | |
5841 | \footstrut | |
5842 | \futurelet\next\fo@t | |
5843 | } | |
5844 | \def\fo@t{\ifcat\bgroup\noexpand\next \let\next\f@@t | |
5845 | \else\let\next\f@t\fi \next} | |
5846 | \def\f@@t{\bgroup\aftergroup\@foot\let\next} | |
5847 | \def\f@t#1{#1\@foot} | |
449f3b6c | 5848 | \def\@foot{\strut\par\egroup} |
ff35fedc ILT |
5849 | |
5850 | }%end \catcode `\@=11 | |
5851 | ||
ff35fedc ILT |
5852 | % @| inserts a changebar to the left of the current line. It should |
5853 | % surround any changed text. This approach does *not* work if the | |
5854 | % change spans more than two lines of output. To handle that, we would | |
5855 | % have adopt a much more difficult approach (putting marks into the main | |
5856 | % vertical list for the beginning and end of each change). | |
5857 | % | |
5858 | \def\|{% | |
5859 | % \vadjust can only be used in horizontal mode. | |
5860 | \leavevmode | |
5861 | % | |
5862 | % Append this vertical mode material after the current line in the output. | |
5863 | \vadjust{% | |
5864 | % We want to insert a rule with the height and depth of the current | |
5865 | % leading; that is exactly what \strutbox is supposed to record. | |
5866 | \vskip-\baselineskip | |
5867 | % | |
5868 | % \vadjust-items are inserted at the left edge of the type. So | |
5869 | % the \llap here moves out into the left-hand margin. | |
5870 | \llap{% | |
5871 | % | |
5872 | % For a thicker or thinner bar, change the `1pt'. | |
5873 | \vrule height\baselineskip width1pt | |
5874 | % | |
5875 | % This is the space between the bar and the text. | |
5876 | \hskip 12pt | |
5877 | }% | |
5878 | }% | |
5879 | } | |
5880 | ||
5881 | % For a final copy, take out the rectangles | |
5882 | % that mark overfull boxes (in case you have decided | |
5883 | % that the text looks ok even though it passes the margin). | |
5884 | % | |
5885 | \def\finalout{\overfullrule=0pt} | |
5886 | ||
5887 | % @image. We use the macros from epsf.tex to support this. | |
5888 | % If epsf.tex is not installed and @image is used, we complain. | |
449f3b6c | 5889 | % |
ff35fedc ILT |
5890 | % Check for and read epsf.tex up front. If we read it only at @image |
5891 | % time, we might be inside a group, and then its definitions would get | |
5892 | % undone and the next image would fail. | |
5893 | \openin 1 = epsf.tex | |
5894 | \ifeof 1 \else | |
5895 | \closein 1 | |
5896 | % Do not bother showing banner with post-v2.7 epsf.tex (available in | |
5897 | % doc/epsf.tex until it shows up on ctan). | |
5898 | \def\epsfannounce{\toks0 = }% | |
5899 | \input epsf.tex | |
5900 | \fi | |
5901 | % | |
449f3b6c | 5902 | % We will only complain once about lack of epsf.tex. |
ff35fedc ILT |
5903 | \newif\ifwarnednoepsf |
5904 | \newhelp\noepsfhelp{epsf.tex must be installed for images to | |
5905 | work. It is also included in the Texinfo distribution, or you can get | |
449f3b6c | 5906 | it from ftp://tug.org/tex/epsf.tex.} |
ff35fedc | 5907 | % |
ff35fedc ILT |
5908 | \def\image#1{% |
5909 | \ifx\epsfbox\undefined | |
5910 | \ifwarnednoepsf \else | |
5911 | \errhelp = \noepsfhelp | |
5912 | \errmessage{epsf.tex not found, images will be ignored}% | |
5913 | \global\warnednoepsftrue | |
5914 | \fi | |
5915 | \else | |
bd48e1a9 | 5916 | \imagexxx #1,,,,,\finish |
ff35fedc ILT |
5917 | \fi |
5918 | } | |
5919 | % | |
5920 | % Arguments to @image: | |
5921 | % #1 is (mandatory) image filename; we tack on .eps extension. | |
5922 | % #2 is (optional) width, #3 is (optional) height. | |
bd48e1a9 AC |
5923 | % #4 is (ignored optional) html alt text. |
5924 | % #5 is (ignored optional) extension. | |
5925 | % #6 is just the usual extra ignored arg for parsing this stuff. | |
5926 | \newif\ifimagevmode | |
5927 | \def\imagexxx#1,#2,#3,#4,#5,#6\finish{\begingroup | |
5928 | \catcode`\^^M = 5 % in case we're inside an example | |
5929 | \normalturnoffactive % allow _ et al. in names | |
5930 | % If the image is by itself, center it. | |
5931 | \ifvmode | |
5932 | \imagevmodetrue | |
5933 | \nobreak\bigskip | |
5934 | % Usually we'll have text after the image which will insert | |
5935 | % \parskip glue, so insert it here too to equalize the space | |
5936 | % above and below. | |
5937 | \nobreak\vskip\parskip | |
5938 | \nobreak | |
5939 | \line\bgroup\hss | |
5940 | \fi | |
5941 | % | |
5942 | % Output the image. | |
449f3b6c | 5943 | \ifpdf |
bd48e1a9 | 5944 | \dopdfimage{#1}{#2}{#3}% |
449f3b6c AC |
5945 | \else |
5946 | % \epsfbox itself resets \epsf?size at each figure. | |
5947 | \setbox0 = \hbox{\ignorespaces #2}\ifdim\wd0 > 0pt \epsfxsize=#2\relax \fi | |
5948 | \setbox0 = \hbox{\ignorespaces #3}\ifdim\wd0 > 0pt \epsfysize=#3\relax \fi | |
bd48e1a9 | 5949 | \epsfbox{#1.eps}% |
449f3b6c | 5950 | \fi |
bd48e1a9 AC |
5951 | % |
5952 | \ifimagevmode \hss \egroup \bigbreak \fi % space after the image | |
5953 | \endgroup} | |
449f3b6c AC |
5954 | |
5955 | ||
5956 | \message{localization,} | |
5957 | % and i18n. | |
5958 | ||
5959 | % @documentlanguage is usually given very early, just after | |
5960 | % @setfilename. If done too late, it may not override everything | |
5961 | % properly. Single argument is the language abbreviation. | |
5962 | % It would be nice if we could set up a hyphenation file here. | |
5963 | % | |
5964 | \def\documentlanguage{\parsearg\dodocumentlanguage} | |
5965 | \def\dodocumentlanguage#1{% | |
5966 | \tex % read txi-??.tex file in plain TeX. | |
5967 | % Read the file if it exists. | |
5968 | \openin 1 txi-#1.tex | |
5969 | \ifeof1 | |
5970 | \errhelp = \nolanghelp | |
5971 | \errmessage{Cannot read language file txi-#1.tex}% | |
5972 | \let\temp = \relax | |
ff35fedc | 5973 | \else |
449f3b6c | 5974 | \def\temp{\input txi-#1.tex }% |
ff35fedc | 5975 | \fi |
449f3b6c AC |
5976 | \temp |
5977 | \endgroup | |
ff35fedc | 5978 | } |
449f3b6c AC |
5979 | \newhelp\nolanghelp{The given language definition file cannot be found or |
5980 | is empty. Maybe you need to install it? In the current directory | |
5981 | should work if nowhere else does.} | |
ff35fedc ILT |
5982 | |
5983 | ||
449f3b6c AC |
5984 | % @documentencoding should change something in TeX eventually, most |
5985 | % likely, but for now just recognize it. | |
5986 | \let\documentencoding = \comment | |
ff35fedc | 5987 | |
449f3b6c AC |
5988 | |
5989 | % Page size parameters. | |
5990 | % | |
ff35fedc ILT |
5991 | \newdimen\defaultparindent \defaultparindent = 15pt |
5992 | ||
5993 | \chapheadingskip = 15pt plus 4pt minus 2pt | |
5994 | \secheadingskip = 12pt plus 3pt minus 2pt | |
5995 | \subsecheadingskip = 9pt plus 2pt minus 2pt | |
5996 | ||
5997 | % Prevent underfull vbox error messages. | |
5998 | \vbadness = 10000 | |
5999 | ||
6000 | % Don't be so finicky about underfull hboxes, either. | |
6001 | \hbadness = 2000 | |
6002 | ||
6003 | % Following George Bush, just get rid of widows and orphans. | |
6004 | \widowpenalty=10000 | |
6005 | \clubpenalty=10000 | |
6006 | ||
6007 | % Use TeX 3.0's \emergencystretch to help line breaking, but if we're | |
6008 | % using an old version of TeX, don't do anything. We want the amount of | |
6009 | % stretch added to depend on the line length, hence the dependence on | |
449f3b6c | 6010 | % \hsize. We call this whenever the paper size is set. |
ff35fedc ILT |
6011 | % |
6012 | \def\setemergencystretch{% | |
6013 | \ifx\emergencystretch\thisisundefined | |
6014 | % Allow us to assign to \emergencystretch anyway. | |
6015 | \def\emergencystretch{\dimen0}% | |
6016 | \else | |
449f3b6c | 6017 | \emergencystretch = .15\hsize |
ff35fedc ILT |
6018 | \fi |
6019 | } | |
6020 | ||
6021 | % Parameters in order: 1) textheight; 2) textwidth; 3) voffset; | |
bd48e1a9 AC |
6022 | % 4) hoffset; 5) binding offset; 6) topskip. We also call |
6023 | % \setleading{\textleading}, so the caller should define \textleading. | |
6024 | % The caller should also set \parskip. | |
ff35fedc ILT |
6025 | % |
6026 | \def\internalpagesizes#1#2#3#4#5#6{% | |
6027 | \voffset = #3\relax | |
6028 | \topskip = #6\relax | |
6029 | \splittopskip = \topskip | |
6030 | % | |
6031 | \vsize = #1\relax | |
6032 | \advance\vsize by \topskip | |
6033 | \outervsize = \vsize | |
449f3b6c | 6034 | \advance\outervsize by 2\topandbottommargin |
ff35fedc ILT |
6035 | \pageheight = \vsize |
6036 | % | |
6037 | \hsize = #2\relax | |
6038 | \outerhsize = \hsize | |
6039 | \advance\outerhsize by 0.5in | |
6040 | \pagewidth = \hsize | |
6041 | % | |
6042 | \normaloffset = #4\relax | |
6043 | \bindingoffset = #5\relax | |
6044 | % | |
bd48e1a9 AC |
6045 | \setleading{\textleading} |
6046 | % | |
ff35fedc ILT |
6047 | \parindent = \defaultparindent |
6048 | \setemergencystretch | |
6049 | } | |
6050 | ||
bd48e1a9 AC |
6051 | % Use `small' versions. |
6052 | % | |
6053 | \def\smallenvironments{% | |
6054 | \let\smalldisplay = \smalldisplayx | |
6055 | \let\smallexample = \smalllispx | |
6056 | \let\smallformat = \smallformatx | |
6057 | \let\smalllisp = \smalllispx | |
6058 | } | |
6059 | ||
ff35fedc ILT |
6060 | % @letterpaper (the default). |
6061 | \def\letterpaper{{\globaldefs = 1 | |
6062 | \parskip = 3pt plus 2pt minus 1pt | |
bd48e1a9 | 6063 | \textleading = 13.2pt |
ff35fedc ILT |
6064 | % |
6065 | % If page is nothing but text, make it come out even. | |
6066 | \internalpagesizes{46\baselineskip}{6in}{\voffset}{.25in}{\bindingoffset}{36pt}% | |
6067 | }} | |
6068 | ||
6069 | % Use @smallbook to reset parameters for 7x9.5 (or so) format. | |
6070 | \def\smallbook{{\globaldefs = 1 | |
6071 | \parskip = 2pt plus 1pt | |
bd48e1a9 | 6072 | \textleading = 12pt |
ff35fedc ILT |
6073 | % |
6074 | \internalpagesizes{7.5in}{5.in}{\voffset}{.25in}{\bindingoffset}{16pt}% | |
6075 | % | |
6076 | \lispnarrowing = 0.3in | |
6077 | \tolerance = 700 | |
6078 | \hfuzz = 1pt | |
6079 | \contentsrightmargin = 0pt | |
6080 | \deftypemargin = 0pt | |
6081 | \defbodyindent = .5cm | |
bd48e1a9 | 6082 | \smallenvironments |
ff35fedc ILT |
6083 | }} |
6084 | ||
6085 | % Use @afourpaper to print on European A4 paper. | |
6086 | \def\afourpaper{{\globaldefs = 1 | |
ff35fedc | 6087 | \parskip = 3pt plus 2pt minus 1pt |
bd48e1a9 | 6088 | \textleading = 12pt |
ff35fedc ILT |
6089 | % |
6090 | \internalpagesizes{53\baselineskip}{160mm}{\voffset}{4mm}{\bindingoffset}{44pt}% | |
6091 | % | |
6092 | \tolerance = 700 | |
6093 | \hfuzz = 1pt | |
6094 | }} | |
6095 | ||
bd48e1a9 AC |
6096 | % Use @afivepaper to print on European A5 paper. |
6097 | % From romildo@urano.iceb.ufop.br, 2 July 2000. | |
6098 | % He also recommends making @example and @lisp be small. | |
6099 | \def\afivepaper{{\globaldefs = 1 | |
6100 | \parskip = 2pt plus 1pt minus 0.1pt | |
6101 | \textleading = 12.5pt | |
6102 | % | |
6103 | \internalpagesizes{166mm}{120mm}{\voffset}{-8mm}{\bindingoffset}{8pt}% | |
6104 | % | |
6105 | \lispnarrowing = 0.2in | |
6106 | \tolerance = 800 | |
6107 | \hfuzz = 1.2pt | |
6108 | \contentsrightmargin = 0mm | |
6109 | \deftypemargin = 0pt | |
6110 | \defbodyindent = 2mm | |
6111 | \tableindent = 12mm | |
6112 | % | |
6113 | \smallenvironments | |
6114 | }} | |
6115 | ||
ff35fedc ILT |
6116 | % A specific text layout, 24x15cm overall, intended for A4 paper. Top margin |
6117 | % 29mm, hence bottom margin 28mm, nominal side margin 3cm. | |
6118 | \def\afourlatex{{\globaldefs = 1 | |
bd48e1a9 | 6119 | \textleading = 13.6pt |
ff35fedc ILT |
6120 | % |
6121 | \afourpaper | |
6122 | \internalpagesizes{237mm}{150mm}{3.6mm}{3.6mm}{3mm}{7mm}% | |
6123 | % | |
bd48e1a9 AC |
6124 | % Must explicitly reset to 0 because we call \afourpaper, apparently, |
6125 | % although this does not entirely make sense. | |
ff35fedc ILT |
6126 | \globaldefs = 0 |
6127 | }} | |
6128 | ||
6129 | % Use @afourwide to print on European A4 paper in wide format. | |
6130 | \def\afourwide{% | |
6131 | \afourpaper | |
ec9914b0 | 6132 | \internalpagesizes{6.5in}{9.5in}{\hoffset}{\normaloffset}{\bindingoffset}{7mm}% |
ff35fedc ILT |
6133 | } |
6134 | ||
6135 | % @pagesizes TEXTHEIGHT[,TEXTWIDTH] | |
6136 | % Perhaps we should allow setting the margins, \topskip, \parskip, | |
6137 | % and/or leading, also. Or perhaps we should compute them somehow. | |
449f3b6c | 6138 | % |
ff35fedc ILT |
6139 | \def\pagesizes{\parsearg\pagesizesxxx} |
6140 | \def\pagesizesxxx#1{\pagesizesyyy #1,,\finish} | |
6141 | \def\pagesizesyyy#1,#2,#3\finish{{% | |
6142 | \setbox0 = \hbox{\ignorespaces #2}\ifdim\wd0 > 0pt \hsize=#2\relax \fi | |
6143 | \globaldefs = 1 | |
6144 | % | |
6145 | \parskip = 3pt plus 2pt minus 1pt | |
bd48e1a9 | 6146 | \setleading{\textleading}% |
ff35fedc ILT |
6147 | % |
6148 | \internalpagesizes{#1}{\hsize}{\voffset}{\normaloffset}{\bindingoffset}{44pt}% | |
6149 | }} | |
6150 | ||
6151 | % Set default to letter. | |
449f3b6c | 6152 | % |
ff35fedc ILT |
6153 | \letterpaper |
6154 | ||
449f3b6c | 6155 | |
ff35fedc ILT |
6156 | \message{and turning on texinfo input format.} |
6157 | ||
6158 | % Define macros to output various characters with catcode for normal text. | |
6159 | \catcode`\"=\other | |
6160 | \catcode`\~=\other | |
6161 | \catcode`\^=\other | |
6162 | \catcode`\_=\other | |
6163 | \catcode`\|=\other | |
6164 | \catcode`\<=\other | |
6165 | \catcode`\>=\other | |
6166 | \catcode`\+=\other | |
449f3b6c | 6167 | \catcode`\$=\other |
ff35fedc ILT |
6168 | \def\normaldoublequote{"} |
6169 | \def\normaltilde{~} | |
6170 | \def\normalcaret{^} | |
6171 | \def\normalunderscore{_} | |
6172 | \def\normalverticalbar{|} | |
6173 | \def\normalless{<} | |
6174 | \def\normalgreater{>} | |
6175 | \def\normalplus{+} | |
449f3b6c | 6176 | \def\normaldollar{$} |
ff35fedc ILT |
6177 | |
6178 | % This macro is used to make a character print one way in ttfont | |
6179 | % where it can probably just be output, and another way in other fonts, | |
6180 | % where something hairier probably needs to be done. | |
6181 | % | |
6182 | % #1 is what to print if we are indeed using \tt; #2 is what to print | |
6183 | % otherwise. Since all the Computer Modern typewriter fonts have zero | |
6184 | % interword stretch (and shrink), and it is reasonable to expect all | |
6185 | % typewriter fonts to have this, we can check that font parameter. | |
6186 | % | |
449f3b6c AC |
6187 | \def\ifusingtt#1#2{\ifdim \fontdimen3\font=0pt #1\else #2\fi} |
6188 | ||
6189 | % Same as above, but check for italic font. Actually this also catches | |
6190 | % non-italic slanted fonts since it is impossible to distinguish them from | |
6191 | % italic fonts. But since this is only used by $ and it uses \sl anyway | |
6192 | % this is not a problem. | |
6193 | \def\ifusingit#1#2{\ifdim \fontdimen1\font>0pt #1\else #2\fi} | |
ff35fedc ILT |
6194 | |
6195 | % Turn off all special characters except @ | |
6196 | % (and those which the user can use as if they were ordinary). | |
6197 | % Most of these we simply print from the \tt font, but for some, we can | |
6198 | % use math or other variants that look better in normal text. | |
6199 | ||
6200 | \catcode`\"=\active | |
6201 | \def\activedoublequote{{\tt\char34}} | |
6202 | \let"=\activedoublequote | |
6203 | \catcode`\~=\active | |
6204 | \def~{{\tt\char126}} | |
6205 | \chardef\hat=`\^ | |
6206 | \catcode`\^=\active | |
6207 | \def^{{\tt \hat}} | |
6208 | ||
6209 | \catcode`\_=\active | |
6210 | \def_{\ifusingtt\normalunderscore\_} | |
6211 | % Subroutine for the previous macro. | |
6212 | \def\_{\leavevmode \kern.06em \vbox{\hrule width.3em height.1ex}} | |
6213 | ||
6214 | \catcode`\|=\active | |
6215 | \def|{{\tt\char124}} | |
6216 | \chardef \less=`\< | |
6217 | \catcode`\<=\active | |
6218 | \def<{{\tt \less}} | |
6219 | \chardef \gtr=`\> | |
6220 | \catcode`\>=\active | |
6221 | \def>{{\tt \gtr}} | |
6222 | \catcode`\+=\active | |
6223 | \def+{{\tt \char 43}} | |
449f3b6c AC |
6224 | \catcode`\$=\active |
6225 | \def${\ifusingit{{\sl\$}}\normaldollar} | |
ff35fedc ILT |
6226 | %\catcode 27=\active |
6227 | %\def^^[{$\diamondsuit$} | |
6228 | ||
6229 | % Set up an active definition for =, but don't enable it most of the time. | |
6230 | {\catcode`\==\active | |
6231 | \global\def={{\tt \char 61}}} | |
6232 | ||
6233 | \catcode`+=\active | |
6234 | \catcode`\_=\active | |
6235 | ||
6236 | % If a .fmt file is being used, characters that might appear in a file | |
6237 | % name cannot be active until we have parsed the command line. | |
6238 | % So turn them off again, and have \everyjob (or @setfilename) turn them on. | |
6239 | % \otherifyactive is called near the end of this file. | |
6240 | \def\otherifyactive{\catcode`+=\other \catcode`\_=\other} | |
6241 | ||
6242 | \catcode`\@=0 | |
6243 | ||
6244 | % \rawbackslashxx output one backslash character in current font | |
6245 | \global\chardef\rawbackslashxx=`\\ | |
6246 | %{\catcode`\\=\other | |
6247 | %@gdef@rawbackslashxx{\}} | |
6248 | ||
6249 | % \rawbackslash redefines \ as input to do \rawbackslashxx. | |
6250 | {\catcode`\\=\active | |
6251 | @gdef@rawbackslash{@let\=@rawbackslashxx }} | |
6252 | ||
6253 | % \normalbackslash outputs one backslash in fixed width font. | |
6254 | \def\normalbackslash{{\tt\rawbackslashxx}} | |
6255 | ||
ff35fedc ILT |
6256 | % \catcode 17=0 % Define control-q |
6257 | \catcode`\\=\active | |
6258 | ||
6259 | % Used sometimes to turn off (effectively) the active characters | |
6260 | % even after parsing them. | |
6261 | @def@turnoffactive{@let"=@normaldoublequote | |
6262 | @let\=@realbackslash | |
6263 | @let~=@normaltilde | |
6264 | @let^=@normalcaret | |
6265 | @let_=@normalunderscore | |
6266 | @let|=@normalverticalbar | |
6267 | @let<=@normalless | |
6268 | @let>=@normalgreater | |
449f3b6c AC |
6269 | @let+=@normalplus |
6270 | @let$=@normaldollar} | |
ff35fedc ILT |
6271 | |
6272 | @def@normalturnoffactive{@let"=@normaldoublequote | |
6273 | @let\=@normalbackslash | |
6274 | @let~=@normaltilde | |
6275 | @let^=@normalcaret | |
6276 | @let_=@normalunderscore | |
6277 | @let|=@normalverticalbar | |
6278 | @let<=@normalless | |
6279 | @let>=@normalgreater | |
449f3b6c AC |
6280 | @let+=@normalplus |
6281 | @let$=@normaldollar} | |
ff35fedc ILT |
6282 | |
6283 | % Make _ and + \other characters, temporarily. | |
6284 | % This is canceled by @fixbackslash. | |
6285 | @otherifyactive | |
6286 | ||
6287 | % If a .fmt file is being used, we don't want the `\input texinfo' to show up. | |
6288 | % That is what \eatinput is for; after that, the `\' should revert to printing | |
6289 | % a backslash. | |
6290 | % | |
6291 | @gdef@eatinput input texinfo{@fixbackslash} | |
6292 | @global@let\ = @eatinput | |
6293 | ||
6294 | % On the other hand, perhaps the file did not have a `\input texinfo'. Then | |
6295 | % the first `\{ in the file would cause an error. This macro tries to fix | |
6296 | % that, assuming it is called before the first `\' could plausibly occur. | |
6297 | % Also back turn on active characters that might appear in the input | |
6298 | % file name, in case not using a pre-dumped format. | |
6299 | % | |
449f3b6c AC |
6300 | @gdef@fixbackslash{% |
6301 | @ifx\@eatinput @let\ = @normalbackslash @fi | |
6302 | @catcode`+=@active | |
6303 | @catcode`@_=@active | |
6304 | } | |
6305 | ||
6306 | % Say @foo, not \foo, in error messages. | |
6307 | @escapechar = `@@ | |
ff35fedc | 6308 | |
449f3b6c AC |
6309 | % These look ok in all fonts, so just make them not special. |
6310 | @catcode`@& = @other | |
6311 | @catcode`@# = @other | |
6312 | @catcode`@% = @other | |
ff35fedc | 6313 | |
449f3b6c | 6314 | @c Set initial fonts. |
ff35fedc ILT |
6315 | @textfonts |
6316 | @rm | |
6317 | ||
449f3b6c | 6318 | |
ff35fedc | 6319 | @c Local variables: |
449f3b6c | 6320 | @c eval: (add-hook 'write-file-hooks 'time-stamp) |
ff35fedc | 6321 | @c page-delimiter: "^\\\\message" |
449f3b6c AC |
6322 | @c time-stamp-start: "def\\\\texinfoversion{" |
6323 | @c time-stamp-format: "%:y-%02m-%02d.%02H" | |
6324 | @c time-stamp-end: "}" | |
ff35fedc | 6325 | @c End: |