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Annotation of researchv10dc/cmd/gcc/texinfo.tex, revision 1.1

1.1     ! root        1: %% TeX macros to handle texinfo files
        !             2: 
        !             3: %   Copyright (C) 1985, 1986 Richard M. Stallman
        !             4: 
        !             5: %                     NO WARRANTY
        !             6: 
        !             7: %  BECAUSE THIS PROGRAM IS LICENSED FREE OF CHARGE, WE PROVIDE ABSOLUTELY
        !             8: %NO WARRANTY, TO THE EXTENT PERMITTED BY APPLICABLE STATE LAW.  EXCEPT
        !             9: %WHEN OTHERWISE STATED IN WRITING, FREE SOFTWARE FOUNDATION, INC,
        !            10: %RICHARD M. STALLMAN AND/OR OTHER PARTIES PROVIDE THIS PROGRAM "AS IS"
        !            11: %WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
        !            12: %BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
        !            13: %FITNESS FOR A PARTICULAR PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY
        !            14: %AND PERFORMANCE OF THE PROGRAM IS WITH YOU.  SHOULD THE PROGRAM PROVE
        !            15: %DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR OR
        !            16: %CORRECTION.
        !            17: 
        !            18: % IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW WILL RICHARD M.
        !            19: %STALLMAN, THE FREE SOFTWARE FOUNDATION, INC., AND/OR ANY OTHER PARTY
        !            20: %WHO MAY MODIFY AND REDISTRIBUTE THIS PROGRAM AS PERMITTED BELOW, BE
        !            21: %LIABLE TO YOU FOR DAMAGES, INCLUDING ANY LOST PROFITS, LOST MONIES, OR
        !            22: %OTHER SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
        !            23: %USE OR INABILITY TO USE (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR
        !            24: %DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY THIRD PARTIES OR
        !            25: %A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS) THIS
        !            26: %PROGRAM, EVEN IF YOU HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH
        !            27: %DAMAGES, OR FOR ANY CLAIM BY ANY OTHER PARTY.
        !            28: 
        !            29: %              GENERAL PUBLIC LICENSE TO COPY
        !            30: 
        !            31: %  1. You may copy and distribute verbatim copies of this source file
        !            32: %as you receive it, in any medium, provided that you conspicuously
        !            33: %and appropriately publish on each copy a valid copyright notice
        !            34: %"Copyright (C) 1986 Richard M. Stallman"; and include
        !            35: %following the copyright notice a verbatim copy of the above disclaimer
        !            36: %of warranty and of this License.
        !            37: 
        !            38: %  2. You may modify your copy or copies of this source file or
        !            39: %any portion of it, and copy and distribute such modifications under
        !            40: %the terms of Paragraph 1 above, provided that you also do the following:
        !            41: 
        !            42: %    a) cause the modified files to carry prominent notices stating
        !            43: %    that you changed the files and the date of any change; and
        !            44: 
        !            45: %    b) cause the whole of any work that you distribute or publish,
        !            46: %    that in whole or in part contains or is a derivative of this
        !            47: %    program or any part thereof, to be licensed at no charge to all
        !            48: %    third parties on terms identical to those contained in this
        !            49: %    License Agreement (except that you may choose to grant more extensive
        !            50: %    warranty protection to some or all third parties, at your option).
        !            51: 
        !            52: %    c) You may charge a distribution fee for the physical act of
        !            53: %    transferring a copy, and you may at your option offer warranty
        !            54: %    protection in exchange for a fee.
        !            55: 
        !            56: %Mere aggregation of another unrelated program with this program (or its
        !            57: %derivative) on a volume of a storage or distribution medium does not bring
        !            58: %the other program under the scope of these terms.
        !            59: 
        !            60: %  3. You may copy and distribute this program (or a portion or derivative
        !            61: %of it, under Paragraph 2) in object code or executable form under the terms
        !            62: %of Paragraphs 1 and 2 above provided that you also do one of the following:
        !            63: 
        !            64: %    a) accompany it with the complete corresponding machine-readable
        !            65: %    source code, which must be distributed under the terms of
        !            66: %    Paragraphs 1 and 2 above; or,
        !            67: 
        !            68: %    b) accompany it with a written offer, valid for at least three
        !            69: %    years, to give any third party free (except for a nominal
        !            70: %    shipping charge) a complete machine-readable copy of the
        !            71: %    corresponding source code, to be distributed under the terms of
        !            72: %    Paragraphs 1 and 2 above; or,
        !            73: 
        !            74: %    c) accompany it with the information you received as to where the
        !            75: %    corresponding source code may be obtained.  (This alternative is
        !            76: %    allowed only for noncommercial distribution and only if you
        !            77: %    received the program in object code or executable form alone.)
        !            78: 
        !            79: %For an executable file, complete source code means all the source code for
        !            80: %all modules it contains; but, as a special exception, it need not include
        !            81: %source code for modules which are standard libraries that accompany the
        !            82: %operating system on which the executable file runs.
        !            83: 
        !            84: %  4. You may not copy, sublicense, distribute or transfer this program
        !            85: %except as expressly provided under this License Agreement.  Any attempt
        !            86: %otherwise to copy, sublicense, distribute or transfer this program is void and
        !            87: %your rights to use the program under this License agreement shall be
        !            88: %automatically terminated.  However, parties who have received computer
        !            89: %software programs from you with this License Agreement will not have
        !            90: %their licenses terminated so long as such parties remain in full compliance.
        !            91: 
        !            92: %  5. If you wish to incorporate parts of this program into other free
        !            93: %programs whose distribution conditions are different, write to the Free
        !            94: %Software Foundation at 675 Mass Ave, Cambridge, MA 02139.  We have not yet
        !            95: %worked out a simple rule that can be stated here, but we will often permit
        !            96: %this.  We will be guided by the two goals of preserving the free status of
        !            97: %all derivatives of our free software and of promoting the sharing and reuse of
        !            98: %software.
        !            99: 
        !           100: %In other words, you are welcome to use, share and improve this program.
        !           101: %You are forbidden to forbid anyone else to use, share and improve
        !           102: %what you give them.   Help stamp out software-hoarding!
        !           103: 
        !           104: \def\texinfoversion{1.02}
        !           105: \message{Loading texinfo package [Version \texinfoversion]:}
        !           106: \message{}
        !           107: 
        !           108: % Save some parts of plain tex whose names we will redefine.
        !           109: 
        !           110: \let\ptexlbrace=\{
        !           111: \let\ptexrbrace=\}
        !           112: \let\ptexdot=\.
        !           113: \let\ptexstar=\*
        !           114: \let\ptexend=\end
        !           115: \let\ptexbullet=\bullet
        !           116: \let\ptexb=\b
        !           117: \let\ptexc=\c
        !           118: \let\ptexi=\i
        !           119: \let\ptext=\t
        !           120: \let\ptexl=\l
        !           121: \let\ptexL=\L
        !           122: 
        !           123: \def\tie{\penalty 10000\ }     % Save plain tex definition of ~.
        !           124: 
        !           125: \message{Basics,}
        !           126: \chardef\other=12
        !           127: 
        !           128: \hyphenation{ap-pen-dix}
        !           129: \hyphenation{mini-buf-fer mini-buf-fers}
        !           130: \hyphenation{eshell}
        !           131: 
        !           132: % Margin to add to right of even pages, to left of odd pages.
        !           133: \newdimen \bindingoffset  \bindingoffset=0pt
        !           134: \newdimen \normaloffset   \normaloffset=\hoffset
        !           135: \newdimen\pagewidth \newdimen\pageheight
        !           136: \pagewidth=\hsize \pageheight=\vsize
        !           137: 
        !           138: %---------------------Begin change-----------------------
        !           139: %
        !           140: % Dimensions to add cropmarks at corners Added by P. A. MacKay, 12 Nov. 1986
        !           141: %
        !           142: \newdimen\cornerlong \newdimen\cornerthick
        !           143: \newdimen \topandbottommargin
        !           144: \newdimen \outerhsize \newdimen \outervsize
        !           145: \cornerlong=1pc\cornerthick=.3pt       % These set size of cropmarks
        !           146: \outerhsize=7in
        !           147: \outervsize=9.5in
        !           148: \topandbottommargin=.75in
        !           149: %
        !           150: %---------------------End change-----------------------
        !           151: 
        !           152: % \onepageout takes a vbox as an argument.  Note that \pagecontents
        !           153: % does insertions itself, but you have to call it yourself.
        !           154: \chardef\PAGE=255  \output={\onepageout{\pagecontents\PAGE}}
        !           155: \def\onepageout#1{\hoffset=\normaloffset
        !           156: \ifodd\pageno  \advance\hoffset by \bindingoffset
        !           157: \else \advance\hoffset by -\bindingoffset\fi
        !           158: \shipout\vbox{{\let\hsize=\pagewidth \makeheadline} \pagebody{#1}%
        !           159:  {\let\hsize=\pagewidth \makefootline}}
        !           160: \advancepageno \ifnum\outputpenalty>-20000 \else\dosupereject\fi}
        !           161: 
        !           162: 
        !           163: % Here is a modification of the main output routine for Near East Publications
        !           164: % This provides right-angle cropmarks at all four corners.
        !           165: % The contents of the page are centerlined into the cropmarks,
        !           166: % and any desired binding offset is added as an \hskip on either
        !           167: % site of the centerlined box.  (P. A. MacKay, 12 November, 1986)
        !           168: %
        !           169: \def\croppageout#1{\hoffset=0pt % make sure this doesn't mess things up
        !           170:                 \shipout
        !           171:                 \vbox to \outervsize{\hsize=\outerhsize
        !           172:                  \vbox{\line{\ewtop\hfill\ewtop}}
        !           173:                  \nointerlineskip
        !           174:                  \line{\vbox{\moveleft\cornerthick\nstop}
        !           175:                        \hfill
        !           176:                        \vbox{\moveright\cornerthick\nstop}}
        !           177:                  \vskip \topandbottommargin
        !           178:                  \centerline{\ifodd\pageno\hskip\bindingoffset\fi
        !           179:                        \vbox{
        !           180:                        {\let\hsize=\pagewidth \makeheadline}
        !           181:                        \pagebody{#1}
        !           182:                        {\let\hsize=\pagewidth \makefootline}}
        !           183:                        \ifodd\pageno\else\hskip\bindingoffset\fi}
        !           184:                 \vskip \topandbottommargin plus1fill minus1fill
        !           185:                  \boxmaxdepth\cornerthick
        !           186:                  \line{\vbox{\moveleft\cornerthick\nsbot}
        !           187:                        \hfill
        !           188:                        \vbox{\moveright\cornerthick\nsbot}}
        !           189:                  \nointerlineskip
        !           190:                  \vbox{\line{\ewbot\hfill\ewbot}}
        !           191:        }
        !           192:   \advancepageno 
        !           193:   \ifnum\outputpenalty>-20000 \else\dosupereject\fi}
        !           194: %
        !           195: % Do @cropmarks to get crop marks
        !           196: \def\cropmarks{\let\onepageout=\croppageout }
        !           197: 
        !           198: \def\pagebody#1{\vbox to\pageheight{\boxmaxdepth=\maxdepth #1}}
        !           199: {\catcode`\@ =11
        !           200: \gdef\pagecontents#1{\ifvoid\topins\else\unvbox\topins\fi
        !           201: \dimen@=\dp#1 \unvbox#1
        !           202: \ifvoid\footins\else\vskip\skip\footins\footnoterule \unvbox\footins\fi
        !           203: \ifr@ggedbottom \kern-\dimen@ \vfil \fi}
        !           204: }
        !           205: 
        !           206: %
        !           207: % Here are the rules for the cropmarks.  Note that they are
        !           208: % offset so that the space between them is truly \outerhsize or \outervsize
        !           209: % (P. A. MacKay, 12 November, 1986)
        !           210: %
        !           211: \def\ewtop{\vrule height\cornerthick depth0pt width\cornerlong}
        !           212: \def\nstop{\vbox
        !           213:   {\hrule height\cornerthick depth\cornerlong width\cornerthick}}
        !           214: \def\ewbot{\vrule height0pt depth\cornerthick width\cornerlong}
        !           215: \def\nsbot{\vbox
        !           216:   {\hrule height\cornerlong depth\cornerthick width\cornerthick}}
        !           217: 
        !           218: % Parse an argument, then pass it to #1.
        !           219: % The argument can be delimited with [...] or with "..." or braces
        !           220: % or it can be a whole line.
        !           221: % #1 should be a macro which expects
        !           222: % an ordinary undelimited TeX argument.
        !           223: 
        !           224: \def\parsearg #1{\let\next=#1\begingroup\obeylines\futurelet\temp\parseargx}
        !           225: 
        !           226: \def\parseargx{%
        !           227: \ifx \obeyedspace\temp \aftergroup\parseargdiscardspace \else%
        !           228: \aftergroup \parseargline %
        !           229: \fi \endgroup}
        !           230: 
        !           231: {\obeyspaces %
        !           232: \gdef\parseargdiscardspace {\begingroup\obeylines\futurelet\temp\parseargx}}
        !           233: 
        !           234: \gdef\obeyedspace{\ }
        !           235: 
        !           236: \def\parseargline{\begingroup \obeylines \parsearglinex}
        !           237: {\obeylines %
        !           238: \gdef\parsearglinex #1^^M{\endgroup \next {#1}}}
        !           239: 
        !           240: \def\flushcr{\ifx\par\lisppar \def\next##1{}\else \let\next=\relax \fi \next}
        !           241: 
        !           242: %% These are used to keep @begin/@end levels from running away
        !           243: %% Call \inENV within environments (after a \begingroup)
        !           244: \newif\ifENV \ENVfalse \def\inENV{\ifENV\relax\else\ENVtrue\fi}
        !           245: \def\ENVcheck{%
        !           246: \ifENV\errmessage{Still within an environment.  Type Return to continue.}
        !           247: \endgroup\fi} % This is not perfect, but it should reduce lossage
        !           248: 
        !           249: % @begin foo  is the same as @foo, for now.
        !           250: \newhelp\EMsimple{Type <Return> to continue}
        !           251: 
        !           252: \outer\def\begin{\parsearg\beginxxx}
        !           253: 
        !           254: \def\beginxxx #1{%
        !           255: \expandafter\ifx\csname #1\endcsname\relax
        !           256: {\errhelp=\EMsimple \errmessage{Undefined command @begin #1}}\else
        !           257: \csname #1\endcsname\fi}
        !           258: 
        !           259: %% @end foo executes the definition of \Efoo.
        !           260: %% foo can be delimited by doublequotes or brackets.
        !           261: 
        !           262: \def\end{\parsearg\endxxx}
        !           263: 
        !           264: \def\endxxx #1{%
        !           265: \expandafter\ifx\csname E#1\endcsname\relax
        !           266: \expandafter\ifx\csname #1\endcsname\relax
        !           267: \errmessage{Undefined command @end #1}\else
        !           268: \errorE{#1}\fi\fi
        !           269: \csname E#1\endcsname}
        !           270: \def\errorE#1{
        !           271: {\errhelp=\EMsimple \errmessage{@end #1 not within #1 environment}}}
        !           272: 
        !           273: % Single-spacing is done by various environments.
        !           274: 
        !           275: \newskip\singlespaceskip \singlespaceskip = \baselineskip
        !           276: \def\singlespace{%
        !           277: {\advance \baselineskip by -\singlespaceskip
        !           278: \kern \baselineskip}%
        !           279: \baselineskip=\singlespaceskip
        !           280: }
        !           281: 
        !           282: %% Simple single-character @ commands
        !           283: 
        !           284: % @@ prints an @
        !           285: % Kludge this until the fonts are right (grr).
        !           286: \def\@{{\sf @}}
        !           287: 
        !           288: % Define @` and @' to be the same as ` and '
        !           289: % but suppressing ligatures.
        !           290: \def\`{{`}}
        !           291: \def\'{{'}}
        !           292: 
        !           293: % Used to generate quoted braces.
        !           294: 
        !           295: \def\mylbrace {{\tt \char '173}}
        !           296: \def\myrbrace {{\tt \char '175}}
        !           297: \let\{=\mylbrace
        !           298: \let\}=\myrbrace
        !           299: 
        !           300: % @: forces normal size whitespace following.
        !           301: \def\:{\spacefactor=1000 }
        !           302: 
        !           303: % @* forces a line break.
        !           304: \def\*{\hfil\break}
        !           305: 
        !           306: % @. is an end-of-sentence period.
        !           307: \def\.{.\spacefactor=3000 }
        !           308: 
        !           309: % @w prevents a word break
        !           310: \def\w #1{\hbox{#1}}
        !           311: 
        !           312: % @group ... @end group  forces ... to be all on one page.
        !           313: 
        !           314: \def\group{\begingroup% \inENV ???
        !           315: \def \Egroup{\egroup\endgroup}
        !           316: \vbox\bgroup}
        !           317: 
        !           318: % @br   forces paragraph break
        !           319: 
        !           320: \let\br = \par
        !           321: 
        !           322: % @dots{}  output some dots
        !           323: 
        !           324: \def\dots{$\ldots$}
        !           325: 
        !           326: % @page    forces the start of a new page
        !           327: 
        !           328: \def\page{\par\vfill\supereject}
        !           329: 
        !           330: % @exdent text....
        !           331: % outputs text on separate line in roman font, starting at standard page margin
        !           332: 
        !           333: \def\exdent{\errmessage{@exdent in filled text}}
        !           334:   % @lisp, etc, define \exdent locally from \internalexdent
        !           335: 
        !           336: {\obeyspaces
        !           337: \gdef\internalexdent{\parsearg\exdentzzz}}
        !           338: 
        !           339: \def\exdentzzz #1{{\advance \leftskip by -\lispnarrowing
        !           340: \advance \hsize by -\leftskip
        !           341: \advance \hsize by -\rightskip
        !           342: \leftline{{\rm#1}}}}
        !           343: 
        !           344: % @include file    insert text of that file as input.
        !           345: 
        !           346: \def\include{\parsearg\includezzz}
        !           347: \def\includezzz #1{{\def\thisfile{#1}\input #1
        !           348: }}
        !           349: 
        !           350: \def\thisfile{}
        !           351: 
        !           352: % @center line   outputs that line, centered
        !           353: 
        !           354: \def\center{\parsearg\centerzzz}
        !           355: \def\centerzzz #1{{\advance\hsize by -\leftskip
        !           356: \advance\hsize by -\rightskip
        !           357: \centerline{#1}}}
        !           358: 
        !           359: % @sp n   outputs n lines of vertical space
        !           360: 
        !           361: \def\sp{\parsearg\spxxx}
        !           362: \def\spxxx #1{\par \vskip #1\baselineskip}
        !           363: 
        !           364: % @comment ...line which is ignored...
        !           365: % @c is the same as @comment
        !           366: % @ignore ... @end ignore  is another way to write a comment
        !           367: 
        !           368: \def\comment{\parsearg \commentxxx}
        !           369: 
        !           370: \def\commentxxx #1{}
        !           371: 
        !           372: \let\c=\comment
        !           373: 
        !           374: \long\def\ignore #1\end ignore{}
        !           375: 
        !           376: \outer\def\ifset{\parsearg\ifsetxxx}
        !           377: 
        !           378: \def\ifsetxxx #1#2\end ifset{%
        !           379: \expandafter\ifx\csname IF#1\endcsname\relax \else #2\fi}
        !           380: 
        !           381: \outer\def\ifclear{\parsearg\ifclearxxx}
        !           382: 
        !           383: \def\ifclearxxx #1#2\end ifclear{%
        !           384: \expandafter\ifx\csname IF#1\endcsname\relax #2\fi}
        !           385: 
        !           386: % Some texinfo constructs that are trivial in tex
        !           387: 
        !           388: \def\iftex{}
        !           389: \def\Eiftex{}
        !           390: \long\def\ifinfo #1\end ifinfo{}
        !           391: \long\def\menu #1\end menu{}
        !           392: \def\asis#1{#1}
        !           393: 
        !           394: \def\node{\parsearg\nodezzz}
        !           395: \def\nodezzz#1{\nodexxx [#1,]}
        !           396: \def\nodexxx[#1,#2]{\gdef\lastnode{#1}}
        !           397: \let\lastnode=\relax
        !           398: 
        !           399: \def\donoderef{\ifx\lastnode\relax\else
        !           400: \expandafter\expandafter\expandafter\setref{\lastnode}\fi
        !           401: \let\lastnode=\relax}
        !           402: 
        !           403: \def\unnumbnoderef{\ifx\lastnode\relax\else
        !           404: \expandafter\expandafter\expandafter\unnumbsetref{\lastnode}\fi
        !           405: \let\lastnode=\relax}
        !           406: 
        !           407: \let\refill=\relax
        !           408: 
        !           409: \let\setfilename=\comment
        !           410: 
        !           411: \def\inforef #1{\inforefzzz #1,,,,**}
        !           412: \def\inforefzzz #1,#2,#3,#4**{See Info file \file{\losespace#3{}}, node `\losespace#1{}'}
        !           413: \def\losespace #1{#1}
        !           414: 
        !           415: \message{fonts,}
        !           416: 
        !           417: % Font-change commands.
        !           418: 
        !           419: %% Try out Computer Modern fonts at a little bigger than \magstephalf
        !           420: \font\tenrm=cmr10 scaled \magstephalf
        !           421: \font\tentt=cmtt10 scaled \magstephalf
        !           422: \font\tenbf=cmb10 scaled \magstephalf
        !           423: \font\tenit=cmti10 scaled \magstephalf
        !           424: \font\tensl=cmsl10 scaled \magstephalf
        !           425: \font\tensf=cmss10 scaled \magstephalf
        !           426: \def\li{\sf}
        !           427: \font\tensc=cmcsc10 scaled \magstephalf
        !           428: 
        !           429: % Font for title
        !           430: \font\titlerm = cmbx10 scaled \magstep5
        !           431: 
        !           432: % Fonts for indices
        !           433: \font\indit=cmti9 \font\indrm=cmr9
        !           434: \def\indbf{\indrm} \def\indsl{\indit}
        !           435: \def\indexfonts{\let\it=\indit \let\sl=\indsl \let\bf=\indbf \let\rm=\indrm}
        !           436: 
        !           437: % Fonts for headings
        !           438: \font\chaprm=cmbx10 scaled \magstep3
        !           439: \font\chapit=cmti10 scaled \magstep3
        !           440: \font\chapsl=cmsl10 scaled \magstep3
        !           441: \font\chaptt=cmtt10 scaled \magstep3
        !           442: \font\chapsf=cmss10 scaled \magstep3
        !           443: \let\chapbf=\chaprm
        !           444: 
        !           445: \font\secrm=cmbx10 scaled \magstep2
        !           446: \font\secit=cmti10 scaled \magstep2
        !           447: \font\secsl=cmsl10 scaled \magstep2
        !           448: \font\sectt=cmtt10 scaled \magstep2
        !           449: \font\secsf=cmss10 scaled \magstep2
        !           450: \let\secbf=\secrm
        !           451: 
        !           452: \font\ssecrm=cmbx10 scaled \magstep1
        !           453: \font\ssecit=cmti10 scaled \magstep1
        !           454: \font\ssecsl=cmsl10 scaled \magstep1
        !           455: \font\ssectt=cmtt10 scaled \magstep1
        !           456: \font\ssecsf=cmss10 scaled \magstep1
        !           457: \let\ssecbf=\ssecrm
        !           458: 
        !           459: \def\textfonts{\let\rm=\tenrm\let\it=\tenit\let\sl=\tensl\let\bf=\tenbf%
        !           460: \let\sc=\tensc\let\sf=\tensf}
        !           461: \def\chapfonts{\let\rm=\chaprm\let\it=\chapit\let\sl=\chapsl\let\bf=\chapbf\let\tt=\chaptt\let\sf=\chapsf}
        !           462: \def\secfonts{\let\rm=\secrm\let\it=\secit\let\sl=\secsl\let\bf=\secbf\let\tt=\sectt\let\sf=\secsf}
        !           463: \def\subsecfonts{\let\rm=\ssecrm\let\it=\ssecit\let\sl=\ssecsl\let\bf=\ssecbf\let\tt=\ssectt\let\sf=\ssecsf}
        !           464: % Count depth in font-changes, for error checks
        !           465: \newcount\fontdepth \fontdepth=0
        !           466: 
        !           467: %% Add scribe-like font environments, plus @l for inline lisp (usually sans
        !           468: %% serif) and @ii for TeX italic
        !           469: 
        !           470: \def\i#1{{\sl #1}}
        !           471: \let\var=\i
        !           472: \let\dfn=\i
        !           473: \let\emph=\i
        !           474: \let\cite=\i
        !           475: 
        !           476: \def\b#1{{\bf #1}}
        !           477: \let\strong=\b
        !           478: 
        !           479: \def\t#1{{\tt \rawbackslash #1}\null}
        !           480: \let\ttfont = \t
        !           481: \let\kbd=\t
        !           482: \let\code=\t
        !           483: \def\samp #1{`{\tt \rawbackslash #1}'\null}
        !           484: \def\key #1{{\tt \uppercase{#1}}\null}
        !           485: \def\ctrl #1{{\tt \rawbackslash \hat}#1}
        !           486: 
        !           487: \let\file=\samp
        !           488: 
        !           489: \def\l#1{{\li #1}\null}
        !           490: 
        !           491: \def\r#1{{\rm #1}}
        !           492: \def\s#1{{\sc #1}}
        !           493: \def\ii#1{{\it #1}}
        !           494: 
        !           495: \def\titlefont#1{{\titlerm #1}}
        !           496: 
        !           497: \def\titlepage{\begingroup \parindent=0pt \hbox{}%
        !           498: \let\oldpage=\page
        !           499: \def\page{\oldpage \hbox{}}}
        !           500: 
        !           501: \def\Etitlepage{\endgroup\page\HEADINGSon}
        !           502: 
        !           503: % Make altmode in file print out right
        !           504: 
        !           505: \catcode `\^^[=\active \def^^[{$\diamondsuit$}
        !           506: 
        !           507: \message{page headings,}
        !           508: 
        !           509: %%% Set up page headings and footings.
        !           510: 
        !           511: \let\thispage=\folio
        !           512: 
        !           513: \newtoks \evenheadline    % Token sequence for heading line of even pages
        !           514: \newtoks \oddheadline     % Token sequence for heading line of odd pages
        !           515: \newtoks \evenfootline    % Token sequence for footing line of even pages
        !           516: \newtoks \oddfootline     % Token sequence for footing line of odd pages
        !           517: 
        !           518: % Now make Tex use those variables
        !           519: \headline={{\textfonts\rm \ifodd\pageno \the\oddheadline \else \the\evenheadline \fi}}
        !           520: \footline={{\textfonts\rm \ifodd\pageno \the\oddfootline \else \the\evenfootline \fi}}
        !           521: 
        !           522: % Commands to set those variables.
        !           523: % For example, this is what  @headings on  does
        !           524: % @evenheading @thistitle|@thispage|@thischapter
        !           525: % @oddheading @thischapter|@thispage|@thistitle
        !           526: % @evenfooting @thisfile||
        !           527: % @oddfooting ||@thisfile
        !           528: 
        !           529: \def\evenheading{\parsearg\evenheadingxxx}
        !           530: \def\oddheading{\parsearg\oddheadingxxx}
        !           531: \def\everyheading{\parsearg\everyheadingxxx}
        !           532: 
        !           533: \def\evenfooting{\parsearg\evenfootingxxx}
        !           534: \def\oddfooting{\parsearg\oddfootingxxx}
        !           535: \def\everyfooting{\parsearg\everyfootingxxx}
        !           536: 
        !           537: \def\evenheadingxxx #1{\evenheadingyyy #1\|\|\|\|\finish}
        !           538: \def\evenheadingyyy #1\|#2\|#3\|#4\finish{%
        !           539: \global\evenheadline={\rlap{\centerline{#2}}\line{#1\hfil#3}}}
        !           540: 
        !           541: \def\oddheadingxxx #1{\oddheadingyyy #1\|\|\|\|\finish}
        !           542: \def\oddheadingyyy #1\|#2\|#3\|#4\finish{%
        !           543: \global\oddheadline={\rlap{\centerline{#2}}\line{#1\hfil#3}}}
        !           544: 
        !           545: \def\everyheadingxxx #1{\everyheadingyyy #1\|\|\|\|\finish}
        !           546: \def\everyheadingyyy #1\|#2\|#3\|#4\finish{%
        !           547: \global\evenheadline={\rlap{\centerline{#2}}\line{#1\hfil#3}}
        !           548: \global\oddheadline={\rlap{\centerline{#2}}\line{#1\hfil#3}}}
        !           549: 
        !           550: \def\evenfootingxxx #1{\evenfootingyyy #1\|\|\|\|\finish}
        !           551: \def\evenfootingyyy #1\|#2\|#3\|#4\finish{%
        !           552: \global\evenfootline={\rlap{\centerline{#2}}\line{#1\hfil#3}}}
        !           553: 
        !           554: \def\oddfootingxxx #1{\oddfootingyyy #1\|\|\|\|\finish}
        !           555: \def\oddfootingyyy #1\|#2\|#3\|#4\finish{%
        !           556: \global\oddfootline={\rlap{\centerline{#2}}\line{#1\hfil#3}}}
        !           557: 
        !           558: \def\everyfootingxxx #1{\everyfootingyyy #1\|\|\|\|\finish}
        !           559: \def\everyfootingyyy #1\|#2\|#3\|#4\finish{%
        !           560: \global\evenfootline={\rlap{\centerline{#2}}\line{#1\hfil#3}}
        !           561: \global\oddfootline={\rlap{\centerline{#2}}\line{#1\hfil#3}}}
        !           562: 
        !           563: % @headings on   turns them on.
        !           564: % @headings off  turns them off.
        !           565: % By default, they are off.
        !           566: 
        !           567: \def\headings #1 {\csname HEADINGS#1\endcsname}
        !           568: 
        !           569: \def\HEADINGSoff{
        !           570: \global\evenheadline={\hfil} \global\evenfootline={\hfil}
        !           571: \global\oddheadline={\hfil} \global\oddfootline={\hfil}}
        !           572: \HEADINGSoff
        !           573: % When we turn headings on, set the page number to 1,
        !           574: % Put current file name in lower left corner,
        !           575: % Put chapter name on inside top of right hand pages, document
        !           576: % title on inside top of left hand pages, and page numbers on outside top
        !           577: % edge of all pages.
        !           578: \def\HEADINGSon{
        !           579: \global\pageno=1
        !           580: \global\evenfootline={\thisfile\hfil}
        !           581: \global\oddfootline={\thisfile\hfil}
        !           582: \global\evenheadline={\line{\folio\hfil\thistitle}}
        !           583: \global\oddheadline={\line{\thischapter\hfil\folio}}
        !           584: }
        !           585: 
        !           586: % Subroutines used in generating headings
        !           587: \def\today{\ifcase\month\or
        !           588: January\or February\or March\or April\or May\or June\or
        !           589: July\or August\or September\or October\or November\or December\fi
        !           590: \space\number\day, \number\year}
        !           591: 
        !           592: % @settitle line...  specifies the title of the document, for headings
        !           593: % It generates no output of its own
        !           594: 
        !           595: \def\thistitle{No Title}
        !           596: \def\settitle{\parsearg\settitlezzz}
        !           597: \def\settitlezzz #1{\gdef\thistitle{#1}}
        !           598: 
        !           599: \message{tables,}
        !           600: 
        !           601: % Tables -- @table, @ftable, @item(x), @kitem(x), @xitem(x).
        !           602: 
        !           603: % default indentation of table text
        !           604: \newdimen\tableindent \tableindent=.8in
        !           605: % default indentation of @itemize and @enumerate text
        !           606: \newdimen\itemindent  \itemindent=.3in
        !           607: % margin between end of table item and start of table text.
        !           608: \newdimen\itemmargin  \itemmargin=.1in
        !           609: 
        !           610: % used internally for \itemindent minus \itemmargin
        !           611: \newdimen\itemmax
        !           612: 
        !           613: % Note @table and @ftable define @item, @itemx, etc., with these defs.
        !           614: % They also define \itemindex
        !           615: % to index the item name in whatever manner is desired (perhaps none).
        !           616: 
        !           617: \def\internalBitem{\smallbreak \parsearg\itemzzz}
        !           618: \def\internalBitemx{\par \parsearg\itemzzz}
        !           619: 
        !           620: \def\internalBxitem "#1"{\def\xitemsubtopix{#1} \smallbreak \parsearg\xitemzzz}
        !           621: \def\internalBxitemx "#1"{\def\xitemsubtopix{#1} \par \parsearg\xitemzzz}
        !           622: 
        !           623: \def\internalBkitem{\smallbreak \parsearg\kitemzzz}
        !           624: \def\internalBkitemx{\par \parsearg\kitemzzz}
        !           625: 
        !           626: \def\kitemzzz #1{\dosubind {kw}{#1}{for {\bf \lastfunction}}\itemzzz {#1}}
        !           627: 
        !           628: \def\xitemzzz #1{\dosubind {kw}{#1}{for {\bf \xitemsubtopic}}\itemzzz {#1}}
        !           629: 
        !           630: \def\itemzzz #1{\begingroup %
        !           631: \advance \hsize by -\rightskip %
        !           632: \advance \hsize by -\leftskip %
        !           633: \setbox0=\hbox{\itemfont{#1}}%
        !           634: \itemindex{#1}%
        !           635: \parskip=0in %
        !           636: \noindent %
        !           637: \ifdim \wd0>\itemmax %
        !           638: \vadjust{\penalty 10000}%
        !           639: \hbox to \hsize{\hskip -\tableindent\box0\hss}\ %
        !           640: \else %
        !           641: \hbox to 0pt{\hskip -\tableindent\box0\hss}%
        !           642: \fi %
        !           643: \endgroup %
        !           644: }
        !           645: 
        !           646: \def\item{\errmessage{@item while not in a table}}
        !           647: \def\itemx{\errmessage{@itemx while not in a table}}
        !           648: \def\kitem{\errmessage{@kitem while not in a table}}
        !           649: \def\kitemx{\errmessage{@kitemx while not in a table}}
        !           650: \def\xitem{\errmessage{@xitem while not in a table}}
        !           651: \def\xitemx{\errmessage{@xitemx while not in a table}}
        !           652: 
        !           653: %% Contains a kludge to get @end[description] to work
        !           654: \def\description{\tablez{\dontindex}{1}{}{}{}{}}
        !           655: 
        !           656: \def\table{\begingroup\inENV\obeylines\obeyspaces\tablex}
        !           657: {\obeylines\obeyspaces%
        !           658: \gdef\tablex #1^^M{%
        !           659: \tabley\dontindex#1        \endtabley}}
        !           660: 
        !           661: \def\ftable{\begingroup\inENV\obeylines\obeyspaces\ftablex}
        !           662: {\obeylines\obeyspaces%
        !           663: \gdef\ftablex #1^^M{%
        !           664: \tabley\fnitemindex#1        \endtabley}}
        !           665: 
        !           666: \def\dontindex #1{}
        !           667: \def\fnitemindex #1{\doind {fn}{#1}}%
        !           668: 
        !           669: {\obeyspaces %
        !           670: \gdef\tabley#1#2 #3 #4 #5 #6 #7\endtabley{\endgroup%
        !           671: \tablez{#1}{#2}{#3}{#4}{#5}{#6}}}
        !           672: 
        !           673: \def\tablez #1#2#3#4#5#6{%
        !           674: \aboveenvbreak %
        !           675: \begingroup %
        !           676: \def\Edescription{\Etable}% Neccessary kludge.
        !           677: \let\itemindex=#1%
        !           678: \ifnum 0#3>0 \advance \leftskip by #3\mil \fi %
        !           679: \ifnum 0#4>0 \tableindent=#4\mil \fi %
        !           680: \ifnum 0#5>0 \advance \rightskip by #5\mil \fi %
        !           681: \def\itemfont{#2}%
        !           682: \itemmax=\tableindent %
        !           683: \advance \itemmax by -\itemmargin %
        !           684: \advance \leftskip by \tableindent %
        !           685: \parindent = 0pt
        !           686: \parskip = \smallskipamount
        !           687: \ifdim \parskip=0pt \parskip=2pt \fi%
        !           688: \def\Etable{\endgraf\endgroup\afterenvbreak}%
        !           689: \let\item = \internalBitem %
        !           690: \let\itemx = \internalBitemx %
        !           691: \let\kitem = \internalBkitem %
        !           692: \let\kitemx = \internalBkitemx %
        !           693: \let\xitem = \internalBxitem %
        !           694: \let\xitemx = \internalBxitemx %
        !           695: }
        !           696: 
        !           697: % This is the counter used by @enumerate, which is really @itemize
        !           698: 
        !           699: \newcount \itemno
        !           700: 
        !           701: \def\itemize{\parsearg\itemizezzz}
        !           702: 
        !           703: \def\itemizezzz #1{\itemizey {#1}{\Eitemize}}
        !           704: 
        !           705: \def\itemizey #1#2{%
        !           706: \aboveenvbreak %
        !           707: \begingroup %
        !           708: \itemno = 0 %
        !           709: \itemmax=\itemindent %
        !           710: \advance \itemmax by -\itemmargin %
        !           711: \advance \leftskip by \itemindent %
        !           712: \parindent = 0pt
        !           713: \parskip = \smallskipamount
        !           714: \ifdim \parskip=0pt \parskip=2pt \fi%
        !           715: \def#2{\endgraf\endgroup\afterenvbreak}%
        !           716: \def\itemcontents{#1}%
        !           717: \let\item=\itemizeitem}
        !           718: 
        !           719: \def\bullet{$\ptexbullet$}
        !           720: \def\minus{$-$}
        !           721: 
        !           722: \def\enumerate{\itemizey{\the\itemno.}\Eenumerate\flushcr}
        !           723: 
        !           724: % Definition of @item while inside @itemize.
        !           725: 
        !           726: \def\itemizeitem{%
        !           727: \advance\itemno by 1
        !           728: {\let\par=\endgraf \smallbreak}%
        !           729: \ifhmode \errmessage{\in hmode at itemizeitem}\fi
        !           730: {\parskip=0in \hskip 0pt
        !           731: \hbox to 0pt{\hss \itemcontents\hskip \itemmargin}%
        !           732: \vadjust{\penalty 300}}%
        !           733: \flushcr}
        !           734: 
        !           735: \message{indexing,}
        !           736: % Index generation facilities
        !           737: 
        !           738: % Define \newwrite to be identical to plain tex's \newwrite
        !           739: % except not \outer, so it can be used within \newindex.
        !           740: {\catcode`\@=11
        !           741: \gdef\newwrite{\alloc@7\write\chardef\sixt@@n}}
        !           742: 
        !           743: % \newindex {foo} defines an index named foo.
        !           744: % It automatically defines \fooindex such that
        !           745: % \fooindex ...rest of line... puts an entry in the index foo.
        !           746: % It also defines \fooindfile to be the number of the output channel for
        !           747: % the file that        accumulates this index.  The file's extension is foo.
        !           748: % The name of an index should be no more than 2 characters long
        !           749: % for the sake of vms.
        !           750: 
        !           751: \def\newindex #1{
        !           752: \expandafter\newwrite \csname#1indfile\endcsname% Define number for output file
        !           753: \openout \csname#1indfile\endcsname \jobname.#1        % Open the file
        !           754: \expandafter\xdef\csname#1index\endcsname{%    % Define \xxxindex
        !           755: \noexpand\doindex {#1}}
        !           756: }
        !           757: 
        !           758: % @defindex foo  ==  \newindex{foo}
        !           759: 
        !           760: \def\defindex{\parsearg\newindex}
        !           761: 
        !           762: % @synindex foo bar    makes index foo feed into index bar.
        !           763: % Do this instead of @defindex foo if you don't want it as a separate index.
        !           764: \def\synindex #1 #2 {%
        !           765: \expandafter \xdef \csname#1index\endcsname {\noexpand\csname#2index\endcsname}%
        !           766: \expandafter \chardef \csname#1indfile\endcsname %
        !           767: = \csname#2indfile\endcsname}
        !           768: 
        !           769: % Define \doindex, the driver for all \fooindex macros.
        !           770: % Argument #1 is generated by the calling \fooindex macro,
        !           771: %  and it is "foo", the name of the index.
        !           772: 
        !           773: % \doindex just uses \parsearg; it calls \doind for the actual work.
        !           774: % This is because \doind is more useful to call from other macros.
        !           775: 
        !           776: % There is also \dosubind {index}{topic}{subtopic}
        !           777: % which makes an entry in a two-level index such as the operation index.
        !           778: 
        !           779: \def\doindex#1{\edef\indexname{#1}\parsearg\singleindexer}
        !           780: \def\singleindexer #1{\doind{\indexname}{#1}}
        !           781: 
        !           782: \def\indexdummies{%
        !           783: \def\bf{\realbackslash bf }%
        !           784: \def\rm{\realbackslash rm }%
        !           785: \def\sl{\realbackslash sl }%
        !           786: \def\dots{\realbackslash dots }%
        !           787: \def\copyright{\realbackslash copyright }%
        !           788: }
        !           789: 
        !           790: % To define \realbackslash, we must make \ not be an escape.
        !           791: % We must first make another character (@) an escape
        !           792: % so we do not become unable to do a definition.
        !           793: 
        !           794: {\catcode`\@=0 \catcode`\\=\other
        !           795: @gdef@realbackslash{\}}
        !           796: 
        !           797: \let\indexbackslash=0  %overridden during \printindex.
        !           798: 
        !           799: \def\doind #1#2{%
        !           800: {\indexdummies % Must do this here, since \bf, etc expand at this stage
        !           801: \count10=\lastpenalty %
        !           802: \escapechar=`\\%
        !           803: {\let\folio=0% Expand all macros now EXCEPT \folio
        !           804: \def\rawbackslashxx{\indexbackslash}% \indexbackslash isn't defined now
        !           805: % so it will be output as is; and it will print as backslash in the indx.
        !           806: \edef\temp{%
        !           807: \write \csname#1indfile\endcsname{%
        !           808: \realbackslash entry {#2}{\folio}{#2}}}%
        !           809: \temp }%
        !           810: \penalty\count10}}
        !           811: 
        !           812: \def\dosubind #1#2#3{%
        !           813: {\indexdummies % Must do this here, since \bf, etc expand at this stage
        !           814: \count10=\lastpenalty %
        !           815: \escapechar=`\\%
        !           816: {\let\folio=0%
        !           817: \def\rawbackslashxx{\indexbackslash}%
        !           818: \edef\temp{%
        !           819: \write \csname#1indfile\endcsname{%
        !           820: \realbackslash entry {#2 #3}{\folio}{#2}{#3}}}%
        !           821: \temp }%
        !           822: \penalty\count10}}
        !           823: 
        !           824: % The index entry written in the file actually looks like
        !           825: %  \entry {sortstring}{page}{topic}
        !           826: % or
        !           827: %  \entry {sortstring}{page}{topic}{subtopic}
        !           828: % The texindex program reads in these files and writes files
        !           829: % containing these kinds of lines:
        !           830: %  \initial {c}
        !           831: %     before the first topic whose initial is c
        !           832: %  \entry {topic}{pagelist}
        !           833: %     for a topic that is used without subtopics
        !           834: %  \primary {topic}
        !           835: %     for the beginning of a topic that is used with subtopics
        !           836: %  \secondary {subtopic}{pagelist}
        !           837: %     for each subtopic.
        !           838: 
        !           839: % Define the user-accessible indexing commands 
        !           840: % @findex, @vindex, @kindex, @cindex.
        !           841: 
        !           842: \def\findex {\fnindex}
        !           843: \def\kindex {\kyindex}
        !           844: \def\cindex {\cpindex}
        !           845: \def\vindex {\vrindex}
        !           846: \def\tindex {\tpindex}
        !           847: \def\pindex {\pgindex}
        !           848: 
        !           849: \def\cindexsub {\begingroup\obeylines\cindexsub}
        !           850: {\obeylines %
        !           851: \gdef\cindexsub "#1" #2^^M{\endgroup %
        !           852: \dosubind{cp}{#2}{#1}}}
        !           853: 
        !           854: % Define the macros used in formatting output of the sorted index material.
        !           855: 
        !           856: % This is what you call to cause a particular index to get printed.
        !           857: % Write
        !           858: % @unnumbered Function Index
        !           859: % @printindex fn
        !           860: 
        !           861: \def\printindex{\parsearg\doprintindex}
        !           862: 
        !           863: \def\doprintindex#1{\tex %
        !           864: \catcode`\%=\other\catcode`\&=\other\catcode`\#=\other
        !           865: \catcode`\@=\other\catcode`\$=\other\catcode`\_=\other
        !           866: \catcode`\~=\other
        !           867: \def\indexbackslash{\rawbackslashxx}
        !           868: \indexfonts\rm \tolerance=9500 \advance\baselineskip -1pt
        !           869: \begindoublecolumns
        !           870: \openin 1 \jobname.#1s
        !           871: \ifeof 1 \else \closein 1 \input \jobname.#1s
        !           872: \fi
        !           873: \enddoublecolumns
        !           874: \Etex}
        !           875: 
        !           876: % These macros are used by the sorted index file itself.
        !           877: % Change them to control the appearance of the index.
        !           878: 
        !           879: \outer\def\initial #1{%
        !           880: {\let\tentt=\sectt \let\sf=\sectt
        !           881: \bigbreak\line{\secbf#1\hfill}\kern 2pt\penalty3000}}
        !           882: 
        !           883: \outer\def\entry #1#2{
        !           884: {\parfillskip=0in \parskip=0in \parindent=0in
        !           885: \hangindent=1in \hangafter=1%
        !           886: \noindent\hbox{#1}\leaders\Dotsbox\hskip 0pt plus 1filll #2\par
        !           887: }}
        !           888: 
        !           889: \def\primary #1{\line{#1\hfil}}
        !           890: 
        !           891: \newskip\secondaryindent \secondaryindent=0.5cm
        !           892: 
        !           893: \def\secondary #1#2{
        !           894: {\parfillskip=0in \parskip=0in
        !           895: \hangindent =1in \hangafter=1
        !           896: \noindent\hskip\secondaryindent\hbox{#1}\leaders\Dotsbox\hskip 0pt plus 1filll#2\par
        !           897: }}
        !           898: 
        !           899: %% Define two-column mode, which is used in indexes.
        !           900: %% Adapted from the TeXBook, page 416
        !           901: \catcode `\@=11
        !           902: 
        !           903: \newbox\partialpage
        !           904: 
        !           905: \newdimen\doublecolumnhsize  \doublecolumnhsize = 3.11in
        !           906: \newdimen\doublecolumnvsize  \doublecolumnvsize = 19.1in
        !           907: 
        !           908: \def\begindoublecolumns{\begingroup
        !           909:   \output={\global\setbox\partialpage=\vbox{\unvbox255\kern -\topskip \kern \baselineskip}}\eject
        !           910:   \output={\doublecolumnout} \hsize=\doublecolumnhsize \vsize=\doublecolumnvsize}
        !           911: \def\enddoublecolumns{\output={\balancecolumns}\eject
        !           912:   \endgroup \pagegoal=\vsize}
        !           913: 
        !           914: \def\doublecolumnout{\splittopskip=\topskip \splitmaxdepth=\maxdepth
        !           915:   \dimen@=\pageheight \advance\dimen@ by-\ht\partialpage
        !           916:   \setbox0=\vsplit255 to\dimen@ \setbox2=\vsplit255 to\dimen@
        !           917:   \onepageout\pagesofar \unvbox255 \penalty\outputpenalty}
        !           918: \def\pagesofar{\unvbox\partialpage %
        !           919:   \hsize=\doublecolumnhsize % have to restore this since output routine
        !           920: %            changes it to set cropmarks (P. A. MacKay, 12 Nov. 1986)
        !           921:   \wd0=\hsize \wd2=\hsize \hbox to\pagewidth{\box0\hfil\box2}}
        !           922: \def\balancecolumns{\setbox0=\vbox{\unvbox255} \dimen@=\ht0
        !           923:   \advance\dimen@ by\topskip \advance\dimen@ by-\baselineskip
        !           924:   \divide\dimen@ by2 \splittopskip=\topskip
        !           925:   {\vbadness=10000 \loop \global\setbox3=\copy0
        !           926:     \global\setbox1=\vsplit3 to\dimen@
        !           927:     \ifdim\ht3>\dimen@ \global\advance\dimen@ by1pt \repeat}
        !           928:   \setbox0=\vbox to\dimen@{\unvbox1}  \setbox2=\vbox to\dimen@{\unvbox3}
        !           929:   \pagesofar}
        !           930: 
        !           931: \catcode `\@=\other
        !           932: \message{sectioning,}
        !           933: % Define chapters, sections, etc.
        !           934: 
        !           935: \newcount \chapno
        !           936: \newcount \secno
        !           937: \newcount \subsecno
        !           938: \newcount \subsubsecno
        !           939: 
        !           940: % This counter is funny since it counts through charcodes of letters A, B, ...
        !           941: \newcount \appendixno  \appendixno = `\@
        !           942: \def\appendixletter{\char\the\appendixno}
        !           943: 
        !           944: \newwrite \contentsfile
        !           945: \openout \contentsfile = \jobname.toc
        !           946: 
        !           947: % Each @chapter defines this as the name of the chapter.
        !           948: % page headings and footings can use it.  @section does likewise
        !           949: 
        !           950: \def\thischapter{} \def\thissection{}
        !           951: \def\seccheck#1{\if \pageno<0 %
        !           952: \errmessage{@#1 not allowed after generating table of contents}\fi
        !           953: %
        !           954: }
        !           955: 
        !           956: \outer\def\chapter{\parsearg\chapterzzz}
        !           957: \def\chapterzzz #1{\seccheck{chapter}%
        !           958: \secno=0 \subsecno=0 \subsubsecno=0 \global\advance \chapno by 1 \message{Chapter \the\chapno}%
        !           959: \chapmacro {#1}{\the\chapno}%
        !           960: \gdef\thissection{#1}\gdef\thischapter{#1}%
        !           961: \let\rawbackslash=\relax%
        !           962: \edef\temp{{\realbackslash chapentry {#1}{\the\chapno}{\noexpand\folio}}}%
        !           963: \escapechar=`\\%
        !           964: \write \contentsfile \temp  %
        !           965: \donoderef %
        !           966: }
        !           967: 
        !           968: \outer\def\appendix{\parsearg\appendixzzz}
        !           969: \def\appendixzzz #1{\seccheck{appendix}%
        !           970: \secno=0 \subsecno=0 \subsubsecno=0 \global\advance \appendixno by 1 \message{Appendix \appendixletter}%
        !           971: \chapmacro {#1}{Appendix \appendixletter}%
        !           972: \gdef\thischapter{#1}\gdef\thissection{#1}%
        !           973: \edef\temp{{\realbackslash chapentry {#1}{Appendix \appendixletter}{\noexpand\folio}}}%
        !           974: \escapechar=`\\%
        !           975: \write \contentsfile \temp  %
        !           976: \unnumbnoderef %
        !           977: }
        !           978: 
        !           979: \outer\def\unnumbered{\parsearg\unnumberedzzz}
        !           980: \def\unnumberedzzz #1{\seccheck{unnumbered}%
        !           981: \secno=0 \subsecno=0 \subsubsecno=0 \message{(#1)}
        !           982: \unnumbchapmacro {#1}%
        !           983: \gdef\thischapter{#1}\gdef\thissection{#1}%
        !           984: \edef\temp{{\realbackslash unnumbchapentry {#1}{\noexpand\folio}}}%
        !           985: \escapechar=`\\%
        !           986: \write \contentsfile \temp  %
        !           987: \unnumbnoderef %
        !           988: }
        !           989: 
        !           990: \outer\def\section{\parsearg\sectionzzz}
        !           991: \def\sectionzzz #1{\seccheck{section}%
        !           992: \subsecno=0 \subsubsecno=0 \global\advance \secno by 1 %
        !           993: \gdef\thissection{#1}\secheading {#1}{\the\chapno}{\the\secno}%
        !           994: \edef\temp{{\realbackslash secentry %
        !           995: {#1}{\the\chapno}{\the\secno}{\noexpand\folio}}}%
        !           996: \escapechar=`\\%
        !           997: \write \contentsfile \temp %
        !           998: \donoderef %
        !           999: \penalty 10000 %
        !          1000: }
        !          1001: 
        !          1002: \outer\def\appendixsection{\parsearg\appendixsectionzzz}
        !          1003: \outer\def\appendixsec{\parsearg\appendixsectionzzz}
        !          1004: \def\appendixsectionzzz #1{\seccheck{appendixsection}%
        !          1005: \subsecno=0 \subsubsecno=0 \global\advance \secno by 1 %
        !          1006: \gdef\thissection{#1}\secheading {#1}{\appendixletter}{\the\secno}%
        !          1007: \edef\temp{{\realbackslash secentry %
        !          1008: {#1}{\appendixletter}{\the\secno}{\noexpand\folio}}}%
        !          1009: \escapechar=`\\%
        !          1010: \write \contentsfile \temp %
        !          1011: \unnumbnoderef %
        !          1012: \penalty 10000 %
        !          1013: }
        !          1014: 
        !          1015: \outer\def\unnumberedsec{\parsearg\unnumberedseczzz}
        !          1016: \def\unnumberedseczzz #1{\seccheck{unnumberedsec}%
        !          1017: \plainsecheading {#1}\gdef\thissection{#1}%
        !          1018: \edef\temp{{\realbackslash unnumbsecentry %
        !          1019: {#1}{\noexpand\folio}}}%
        !          1020: \escapechar=`\\%
        !          1021: \write \contentsfile \temp %
        !          1022: \unnumbnoderef %
        !          1023: \penalty 10000 %
        !          1024: }
        !          1025: 
        !          1026: \outer\def\subsection{\parsearg\subsectionzzz}
        !          1027: \def\subsectionzzz #1{\seccheck{subsection}%
        !          1028: \gdef\thissection{#1}\subsubsecno=0 \global\advance \subsecno by 1 %
        !          1029: \subsecheading {#1}{\the\chapno}{\the\secno}{\the\subsecno}%
        !          1030: \edef\temp{{\realbackslash subsecentry %
        !          1031: {#1}{\the\chapno}{\the\secno}{\the\subsecno}{\noexpand\folio}}}%
        !          1032: \escapechar=`\\%
        !          1033: \write \contentsfile \temp %
        !          1034: \donoderef %
        !          1035: \penalty 10000 %
        !          1036: }
        !          1037: 
        !          1038: \outer\def\appendixsubsec{\parsearg\appendixsubseczzz}
        !          1039: \def\appendixsubseczzz #1{\seccheck{appendixsubsec}%
        !          1040: \gdef\thissection{#1}\subsubsecno=0 \global\advance \subsecno by 1 %
        !          1041: \subsecheading {#1}{\appendixletter}{\the\secno}{\the\subsecno}%
        !          1042: \edef\temp{{\realbackslash subsecentry %
        !          1043: {#1}{\appendixletter}{\the\secno}{\the\subsecno}{\noexpand\folio}}}%
        !          1044: \escapechar=`\\%
        !          1045: \write \contentsfile \temp %
        !          1046: \unnumbnoderef %
        !          1047: \penalty 10000 %
        !          1048: }
        !          1049: 
        !          1050: \outer\def\unnumberedsubsec{\parsearg\unnumberedsubseczzz}
        !          1051: \def\unnumberedsubseczzz #1{\seccheck{unnumberedsubsec}%
        !          1052: \plainsecheading {#1}\gdef\thissection{#1}%
        !          1053: \edef\temp{{\realbackslash unnumbsubsecentry %
        !          1054: {#1}{\noexpand\folio}}}%
        !          1055: \escapechar=`\\%
        !          1056: \write \contentsfile \temp %
        !          1057: \unnumbnoderef %
        !          1058: \penalty 10000 %
        !          1059: }
        !          1060: 
        !          1061: \outer\def\subsubsection{\parsearg\subsubsectionzzz}
        !          1062: \def\subsubsectionzzz #1{\seccheck{subsubsection}%
        !          1063: \gdef\thissection{#1}\global\advance \subsubsecno by 1 %
        !          1064: \subsubsecheading {#1}{\the\chapno}{\the\secno}{\the\subsecno}{\the\subsubsecno}%
        !          1065: \edef\temp{{\realbackslash subsubsecentry %
        !          1066: {#1}{\the\chapno}{\the\secno}{\the\subsecno}{\the\subsubsecno}{\noexpand\folio}}}%\
        !          1067: \escapechar=`\\%
        !          1068: \write \contentsfile \temp %
        !          1069: \donoderef %
        !          1070: \penalty 10000 %
        !          1071: }
        !          1072: 
        !          1073: \outer\def\appendixsubsubsec{\parsearg\appendixsubsubseczzz}
        !          1074: \def\appendixsubsubseczzz #1{\seccheck{appendixsubsubsec}%
        !          1075: \gdef\thissection{#1}\global\advance \subsubsecno by 1 %
        !          1076: \subsubsecheading {#1}{\appendixletter}{\the\secno}{\the\subsecno}{\the\subsubsecno}%
        !          1077: \edef\temp{{\realbackslash subsubsecentry %
        !          1078: {#1}{\appendixletter}{\the\secno}{\the\subsecno}{\the\subsubsecno}{\noexpand\folio}}}%\
        !          1079: \escapechar=`\\%
        !          1080: \write \contentsfile \temp %
        !          1081: \unnumbnoderef %
        !          1082: \penalty 10000 %
        !          1083: }
        !          1084: 
        !          1085: \outer\def\unnumberedsubsubsec{\parsearg\unnumberedsubsubseczzz}
        !          1086: \def\unnumberedsubsubseczzz #1{\seccheck{unnumberedsubsubsec}%
        !          1087: \plainsecheading {#1}\gdef\thissection{#1}%
        !          1088: \edef\temp{{\realbackslash unnumbsubsubsecentry %
        !          1089: {#1}{\noexpand\folio}}}%
        !          1090: \escapechar=`\\%
        !          1091: \write \contentsfile \temp %
        !          1092: \unnumbnoderef %
        !          1093: \penalty 10000 %
        !          1094: }
        !          1095: 
        !          1096: % Define @majorheading, @heading and @subheading
        !          1097: 
        !          1098: \outer\def\majorheading #1{%
        !          1099: {\advance\chapheadingskip by 10pt \chapbreak }%
        !          1100: {\chapfonts \line{\chaprm #1\hfill}}\bigskip \par\penalty 200}
        !          1101: 
        !          1102: \outer\def\chapheading #1{\chapbreak %
        !          1103: {\chapfonts \line{\chaprm #1\hfill}}\bigskip \par\penalty 200}
        !          1104: 
        !          1105: \let\heading=\secheadingi
        !          1106: \let\subheading=\subsecheadingi
        !          1107: \let\subsubheading=\subsubsecheadingi
        !          1108: 
        !          1109: % These macros generate a chapter, section, etc. heading only
        !          1110: % (including whitespace, linebreaking, etc. around it),
        !          1111: % given all the information in convenient, parsed form.
        !          1112: 
        !          1113: %%% Args are the skip and penalty (usually negative)
        !          1114: \def\dobreak#1#2{\par\ifdim\lastskip<#1\removelastskip\penalty#2\vskip#1\fi}
        !          1115: 
        !          1116: \def\setchapterstyle #1 {\csname CHAPF#1\endcsname}
        !          1117: 
        !          1118: %%% Define plain chapter starts, and page on/off switching for it
        !          1119: % Parameter controlling skip before chapter headings (if needed)
        !          1120: 
        !          1121: \newskip \chapheadingskip \chapheadingskip = 30pt plus 8pt minus 4pt
        !          1122: 
        !          1123: \def\chapbreak{\dobreak \chapheadingskip {-4000}}
        !          1124: \def\chappager{\par\vfill\supereject}
        !          1125: \def\chapoddpage{\chappager \ifodd\pageno \else \hbox to 0pt{} \chappager\fi}
        !          1126: 
        !          1127: \def\setchapternewpage #1 {\csname CHAPPAG#1\endcsname}
        !          1128: \def\CHAPPAGoff{\global\let\pchapsepmacro=\chapbreak}
        !          1129: \def\CHAPPAGon{\global\let\pchapsepmacro=\chappager}
        !          1130: \def\CHAPPAGodd{\global\let\pchapsepmacro=\chapoddpage}
        !          1131: \CHAPPAGon
        !          1132: 
        !          1133: \def\CHAPFplain{
        !          1134: \global\let\chapmacro=\chfplain
        !          1135: \global\let\unnumbchapmacro=\unnchfplain}
        !          1136: 
        !          1137: \def\chfplain #1#2{%
        !          1138: \pchapsepmacro %
        !          1139: {\chapfonts \line{\chaprm #2.\enspace #1\hfill}}\bigskip \par\penalty 5000 %
        !          1140: }
        !          1141: 
        !          1142: \def\unnchfplain #1{%
        !          1143: \pchapsepmacro %
        !          1144: {\chapfonts \line{\chaprm #1\hfill}}\bigskip \par\penalty 10000 %
        !          1145: }
        !          1146: \CHAPFplain % The default
        !          1147: 
        !          1148: \def\unnchfopen #1{%
        !          1149: \chapoddpage {\chapfonts \line{\chaprm #1\hfill}}\bigskip \par\penalty 10000 %
        !          1150: }
        !          1151: 
        !          1152: \def\chfopen #1#2{\chapoddpage {\chapfonts
        !          1153: \vbox to 3in{\vfil \hbox to\hsize{\hfil #2} \hbox to\hsize{\hfil #1} \vfil}}%
        !          1154: \par\penalty 5000 %
        !          1155: }
        !          1156: 
        !          1157: \def\CHAPFopen{
        !          1158: \global\let\chapmacro=\chfopen
        !          1159: \global\let\unnumbchapmacro=\unnchfopen}
        !          1160: 
        !          1161: % Parameter controlling skip before section headings.
        !          1162: 
        !          1163: \newskip \subsecheadingskip  \subsecheadingskip = 17pt plus 8pt minus 4pt
        !          1164: \def\subsecheadingbreak{\dobreak \subsecheadingskip {-500}}
        !          1165: 
        !          1166: \newskip \secheadingskip  \secheadingskip = 21pt plus 8pt minus 4pt
        !          1167: \def\secheadingbreak{\dobreak \secheadingskip {-1000}}
        !          1168: 
        !          1169: \def\secheading #1#2#3{\secheadingi {#2.#3\enspace #1}}
        !          1170: \def\plainsecheading #1{\secheadingi {#1}}
        !          1171: \def\secheadingi #1{{\advance \secheadingskip by \parskip %
        !          1172: \secheadingbreak}%
        !          1173: {\secfonts \line{\secrm #1\hfill}}%
        !          1174: \ifdim \parskip<10pt \kern 10pt\kern -\parskip\fi \penalty 10000 }
        !          1175: 
        !          1176: \def\subsecheading #1#2#3#4{{\advance \subsecheadingskip by \parskip %
        !          1177: \subsecheadingbreak}%
        !          1178: {\secfonts \line{\secrm#2.#3.#4\enspace #1\hfill}}%
        !          1179: \ifdim \parskip<10pt \kern 10pt\kern -\parskip\fi \penalty 10000 }
        !          1180: 
        !          1181: \def\subsubsecfonts{\subsecfonts} % Maybe this should change
        !          1182: 
        !          1183: \def\subsubsecheading #1#2#3#4#5{{\advance \subsecheadingskip by \parskip %
        !          1184: \subsecheadingbreak}%
        !          1185: {\secfonts \line{\secrm#2.#3.#4.#5\enspace #1\hfill}}%
        !          1186: \ifdim \parskip<10pt \kern 10pt\kern -\parskip\fi \penalty 10000}
        !          1187: 
        !          1188: \message{toc printing,}
        !          1189: 
        !          1190: \def\Dotsbox{\hbox to 1em{\hss.\hss}} % Used by index macros
        !          1191: 
        !          1192: \def\finishcontents{%
        !          1193: \ifnum\pageno>0 %
        !          1194: \par\vfill\supereject %
        !          1195: \immediate\closeout \contentsfile%
        !          1196: \pageno=-1             % Request roman numbered pages
        !          1197: \fi}
        !          1198: 
        !          1199: \outer\def\contents{%
        !          1200: \finishcontents %
        !          1201: \unnumbchapmacro{Table of Contents}
        !          1202: \def\thischapter{Table of Contents}
        !          1203: {\catcode`\\=0
        !          1204: \catcode`\{=1          % Set up to handle contents files properly
        !          1205: \catcode`\}=2
        !          1206: \catcode`\@=11
        !          1207: \input \jobname.toc
        !          1208: }
        !          1209: \vfill \eject}
        !          1210: 
        !          1211: \outer\def\summarycontents{%
        !          1212: \finishcontents %
        !          1213: \unnumbchapmacro{Summary Table of Contents}
        !          1214: \def\thischapter{Summary Table of Contents}
        !          1215: {\catcode`\\=0
        !          1216: \catcode`\{=1          % Set up to handle contents files properly
        !          1217: \catcode`\}=2
        !          1218: \catcode`\@=11
        !          1219: \def\smallbreak{}
        !          1220: \def\secentry ##1##2##3##4{}
        !          1221: \def\subsecentry ##1##2##3##4##5{}
        !          1222: \def\subsubsecentry ##1##2##3##4##5##6{}
        !          1223: \def\unnumbsecentry ##1##2{}
        !          1224: \let\medbreak=\smallbreak
        !          1225: \input \jobname.toc
        !          1226: }
        !          1227: \vfill \eject}
        !          1228: 
        !          1229: \outer\def\bye{\par\vfill\supereject\tracingstats=1\ptexend}
        !          1230: 
        !          1231: % These macros generate individual entries in the table of contents
        !          1232: % The first argument is the chapter or section name.
        !          1233: % The last argument is the page number.
        !          1234: % The arguments in between are the chapter number, section number, ...
        !          1235: 
        !          1236: \def\chapentry #1#2#3{%
        !          1237: \medbreak
        !          1238: \line{#2.\space#1\leaders\hbox to 1em{\hss.\hss}\hfill #3}
        !          1239: }
        !          1240: 
        !          1241: \def\unnumbchapentry #1#2{%
        !          1242: \medbreak
        !          1243: \line{#1\leaders\Dotsbox\hfill #2}
        !          1244: }
        !          1245: 
        !          1246: \def\secentry #1#2#3#4{%
        !          1247: \line{\enspace\enspace#2.#3\space#1\leaders\Dotsbox\hfill#4}
        !          1248: }
        !          1249: 
        !          1250: \def\unnumbsecentry #1#2{%
        !          1251: \line{\enspace\enspace#1\leaders\Dotsbox\hfill #2}
        !          1252: }
        !          1253: 
        !          1254: \def\subsecentry #1#2#3#4#5{%
        !          1255: \line{\enspace\enspace\enspace\enspace
        !          1256: #2.#3.#4\space#1\leaders\Dotsbox\hfill #5}
        !          1257: }
        !          1258: 
        !          1259: \def\unnumbsubsecentry #1#2{%
        !          1260: \line{\enspace\enspace\enspace\enspace#1\leaders\Dotsbox\hfill #2}
        !          1261: }
        !          1262: 
        !          1263: \def\subsubsecentry #1#2#3#4#5#6{%
        !          1264: \line{\enspace\enspace\enspace\enspace\enspace\enspace
        !          1265: #2.#3.#4.#5\space#1\leaders\Dotsbox\hfill #6}
        !          1266: }
        !          1267: 
        !          1268: \def\unnumbsubsubsecentry #1#2{%
        !          1269: \line{\enspace\enspace\enspace\enspace\enspace\enspace#1\leaders\Dotsbox\hfill #2}
        !          1270: }
        !          1271: 
        !          1272: \message{environments,}
        !          1273: 
        !          1274: % @tex ... @end tex    escapes into raw Tex temporarily.
        !          1275: % One exception: @ is still an escape character, so that @end tex works.
        !          1276: % But \@ or @@ will get a plain tex @ character.
        !          1277: 
        !          1278: \def\tex{\begingroup
        !          1279: \catcode `\\=0 \catcode `\{=1 \catcode `\}=2
        !          1280: \catcode `\$=3 \catcode `\&=4 \catcode `\#=6
        !          1281: \catcode `\^=7 \catcode `\_=8 \catcode `\~=13 \let~=\tie
        !          1282: \catcode `\%=14
        !          1283: \catcode`\"=12
        !          1284: \catcode`\|=12
        !          1285: \catcode`\<=12
        !          1286: \catcode`\>=12
        !          1287: \escapechar=`\\
        !          1288: 
        !          1289: \let\{=\ptexlbrace
        !          1290: \let\}=\ptexrbrace
        !          1291: \let\.=\ptexdot
        !          1292: \let\*=\ptexstar
        !          1293: \def\@={@}
        !          1294: \let\bullet=\ptexbullet
        !          1295: \let\b=\ptexb \let\c=\ptexc \let\i=\ptexi \let\t=\ptext \let\l=\ptexl
        !          1296: \let\L=\ptexL
        !          1297: 
        !          1298: \let\Etex=\endgroup}
        !          1299: 
        !          1300: % Define @lisp ... @endlisp.
        !          1301: % @lisp does a \begingroup so it can rebind things,
        !          1302: % including the definition of @endlisp (which normally is erroneous).
        !          1303: 
        !          1304: % Amount to narrow the margins by for @lisp.
        !          1305: \newskip\lispnarrowing \lispnarrowing=0.4in
        !          1306: 
        !          1307: % This is the definition that ^M gets inside @lisp
        !          1308: % phr: changed space to \null, to avoid overfull hbox problems.
        !          1309: {\obeyspaces%
        !          1310: \gdef\lisppar{\null\endgraf}}
        !          1311: 
        !          1312: % Cause \obeyspaces to make each Space cause a word-separation
        !          1313: % rather than the default which is that it acts punctuation.
        !          1314: % This is because space in tt font looks funny.
        !          1315: {\obeyspaces %
        !          1316: \gdef\sepspaces{\def {\ }}}
        !          1317: 
        !          1318: \newskip\aboveenvskipamount \aboveenvskipamount= 0pt
        !          1319: \def\aboveenvbreak{{\advance\aboveenvskipamount by \parskip
        !          1320: \endgraf \ifdim\lastskip<\aboveenvskipamount
        !          1321: \removelastskip \penalty-50 \vskip\aboveenvskipamount \fi}}
        !          1322: 
        !          1323: \def\afterenvbreak{\endgraf \ifdim\lastskip<\aboveenvskipamount
        !          1324: \removelastskip \penalty-50 \vskip\aboveenvskipamount \fi}
        !          1325: 
        !          1326: \def\lisp{\aboveenvbreak\begingroup\inENV %This group ends at the end of the @lisp body
        !          1327: \hfuzz=12truept % Don't be fussy
        !          1328: % Make spaces be word-separators rather than space tokens.
        !          1329: \sepspaces %
        !          1330: % Single space lines
        !          1331: \singlespace %
        !          1332: % The following causes blank lines not to be ignored
        !          1333: % by adding a space to the end of each line.
        !          1334: \let\par=\lisppar
        !          1335: \def\Elisp{\endgroup\afterenvbreak}%
        !          1336: \parskip=0pt \advance \rightskip by \lispnarrowing 
        !          1337: \advance \leftskip by \lispnarrowing
        !          1338: \parindent=0pt
        !          1339: \let\exdent=\internalexdent
        !          1340: \obeyspaces \obeylines \tt \rawbackslash
        !          1341: \def\next##1{}\next}
        !          1342: 
        !          1343: 
        !          1344: \let\example=\lisp
        !          1345: \def\Eexample{\Elisp}
        !          1346: 
        !          1347: \let\smallexample=\lisp
        !          1348: \def\Esmallexample{\Elisp}
        !          1349: 
        !          1350: % Macro for 9 pt. examples, necessary to print with 5" lines.
        !          1351: % From Pavel@xerox.  This is not really used unless the
        !          1352: % @smallbook command is given.
        !          1353: 
        !          1354: \def\smalllispx{\aboveenvbreak\begingroup\inENV
        !          1355: %                      This group ends at the end of the @lisp body
        !          1356: \hfuzz=12truept % Don't be fussy
        !          1357: % Make spaces be word-separators rather than space tokens.
        !          1358: \sepspaces %
        !          1359: % Single space lines
        !          1360: \singlespace %
        !          1361: % The following causes blank lines not to be ignored
        !          1362: % by adding a space to the end of each line.
        !          1363: \let\par=\lisppar
        !          1364: \def\Esmalllisp{\endgroup\afterenvbreak}%
        !          1365: \parskip=0pt \advance \rightskip by \lispnarrowing 
        !          1366: \advance \leftskip by \lispnarrowing
        !          1367: \parindent=0pt
        !          1368: \let\exdent=\internalexdent
        !          1369: \obeyspaces \obeylines \ninett \rawbackslash
        !          1370: \def\next##1{}\next}
        !          1371: 
        !          1372: % This is @display; same as @lisp except use roman font.
        !          1373: 
        !          1374: \def\display{\begingroup\inENV %This group ends at the end of the @display body
        !          1375: \aboveenvbreak
        !          1376: % Make spaces be word-separators rather than space tokens.
        !          1377: \sepspaces %
        !          1378: % Single space lines
        !          1379: \singlespace %
        !          1380: % The following causes blank lines not to be ignored
        !          1381: % by adding a space to the end of each line.
        !          1382: \let\par=\lisppar
        !          1383: \def\Edisplay{\endgroup\afterenvbreak}%
        !          1384: \parskip=0pt \advance \rightskip by \lispnarrowing 
        !          1385: \advance \leftskip by \lispnarrowing
        !          1386: \parindent=0pt
        !          1387: \let\exdent=\internalexdent
        !          1388: \obeyspaces \obeylines
        !          1389: \def\next##1{}\next}
        !          1390: 
        !          1391: % This is @format; same as @lisp except use roman font and don't narrow margins
        !          1392: 
        !          1393: \def\format{\begingroup\inENV %This group ends at the end of the @format body
        !          1394: \aboveenvbreak
        !          1395: % Make spaces be word-separators rather than space tokens.
        !          1396: \sepspaces %
        !          1397: \singlespace %
        !          1398: % The following causes blank lines not to be ignored
        !          1399: % by adding a space to the end of each line.
        !          1400: \let\par=\lisppar
        !          1401: \def\Eformat{\endgroup\afterenvbreak}
        !          1402: \parskip=0pt \parindent=0pt
        !          1403: \obeyspaces \obeylines
        !          1404: \def\next##1{}\next}
        !          1405: 
        !          1406: % @flushleft and @flushright
        !          1407: 
        !          1408: \def\flushleft{\begingroup\inENV %This group ends at the end of the @format body
        !          1409: \aboveenvbreak
        !          1410: % Make spaces be word-separators rather than space tokens.
        !          1411: \sepspaces %
        !          1412: % The following causes blank lines not to be ignored
        !          1413: % by adding a space to the end of each line.
        !          1414: % This also causes @ to work when the directive name
        !          1415: % is terminated by end of line.
        !          1416: \let\par=\lisppar
        !          1417: \def\Eflushleft{\endgroup\afterenvbreak}%
        !          1418: \parskip=0pt \parindent=0pt
        !          1419: \obeyspaces \obeylines
        !          1420: \def\next##1{}\next}
        !          1421: 
        !          1422: \def\flushright{\begingroup\inENV %This group ends at the end of the @format body
        !          1423: \aboveenvbreak
        !          1424: % Make spaces be word-separators rather than space tokens.
        !          1425: \sepspaces %
        !          1426: % The following causes blank lines not to be ignored
        !          1427: % by adding a space to the end of each line.
        !          1428: % This also causes @ to work when the directive name
        !          1429: % is terminated by end of line.
        !          1430: \let\par=\lisppar
        !          1431: \def\Eflushright{\endgroup\afterenvbreak}%
        !          1432: \parskip=0pt \parindent=0pt
        !          1433: \advance \leftskip by 0pt plus 1fill
        !          1434: \obeyspaces \obeylines
        !          1435: \def\next##1{}\next}
        !          1436: 
        !          1437: % @quotation - narrow the margins.
        !          1438: 
        !          1439: \def\quotation{\begingroup\inENV %This group ends at the end of the @quotation body
        !          1440: {\parskip=0pt  % because we will skip by \parskip too, later
        !          1441: \aboveenvbreak}%
        !          1442: \singlespace
        !          1443: \parindent=0pt
        !          1444: \def\Equotation{\par\endgroup\afterenvbreak}%
        !          1445: \advance \rightskip by \lispnarrowing 
        !          1446: \advance \leftskip by \lispnarrowing}
        !          1447: 
        !          1448: \message{cross reference,}
        !          1449: % Define cross-reference macros
        !          1450: \newwrite \auxfile
        !          1451: 
        !          1452: % \setref{foo} defines a cross-reference point named foo.
        !          1453: 
        !          1454: \def\setref#1{%
        !          1455: \dosetq{#1-pg}{Ypagenumber}%
        !          1456: \dosetq{#1-snt}{Ysectionnumberandtype}}
        !          1457: 
        !          1458: \def\unnumbsetref#1{%
        !          1459: \dosetq{#1-pg}{Ypagenumber}%
        !          1460: \dosetq{#1-snt}{Ynothing}}
        !          1461: 
        !          1462: % \xref and \pxref generate cross references to specified points.
        !          1463: 
        !          1464: \def\pxref #1{see \xrefX [#1,,,,,,,]}
        !          1465: \def\xref #1{See \xrefX [#1,,,,,,,]}
        !          1466: \def\xrefX [#1,#2,#3,#4,#5,#6]{%
        !          1467: \setbox1=\hbox{\i{\losespace#5{}}}%
        !          1468: \setbox0=\hbox{\losespace#3{}}%
        !          1469: \ifdim \wd0 =0pt \setbox0=\hbox{\losespace#1{}}\fi%
        !          1470: \ifdim \wd1 >0pt%
        !          1471: section \unhbox0{} in \unhbox1%
        !          1472: \else%
        !          1473: \refx{#1-snt} [\unhbox0], page\tie \refx{#1-pg}%
        !          1474: \fi }
        !          1475: 
        !          1476: % \dosetq is the interface for calls from other macros
        !          1477: 
        !          1478: \def\dosetq #1#2{{\let\folio=0%
        !          1479: \edef\next{\write\auxfile{\internalsetq {#1}{#2}}}%
        !          1480: \next}}
        !          1481: 
        !          1482: % \internalsetq {foo}{page} expands into CHARACTERS 'xrdef {foo}{...expansion of \Ypage...}
        !          1483: % When the aux file is read, ' is the escape character
        !          1484: 
        !          1485: \def\internalsetq #1#2{'xrdef {#1}{\csname #2\endcsname}}
        !          1486: 
        !          1487: % Things to be expanded by \internalsetq
        !          1488: 
        !          1489: \def\Ypagenumber{\folio}
        !          1490: 
        !          1491: \def\Ynothing{}
        !          1492: 
        !          1493: \def\Ysectionnumberandtype{%
        !          1494: \ifnum\secno=0 chapter\xreftie\the\chapno %
        !          1495: \else \ifnum \subsecno=0 section\xreftie\the\chapno.\the\secno %
        !          1496: \else \ifnum \subsubsecno=0 %
        !          1497: section\xreftie\the\chapno.\the\secno.\the\subsecno %
        !          1498: \else %
        !          1499: section\xreftie\the\chapno.\the\secno.\the\subsecno.\the\subsubsecno %
        !          1500: \fi \fi \fi }
        !          1501: 
        !          1502: \gdef\xreftie{'tie}
        !          1503: 
        !          1504: % Define @refx to reference a specific cross-reference string.
        !          1505: 
        !          1506: \def\refx#1{%
        !          1507: {%
        !          1508: \expandafter\ifx\csname X#1\endcsname\relax
        !          1509: % If not defined, say something at least.
        !          1510: \expandafter\gdef\csname X#1\endcsname {$<$undefined$>$}%
        !          1511: \message {WARNING: Cross-reference "#1" used but not yet defined}%
        !          1512: \message {}%
        !          1513: \fi %
        !          1514: \csname X#1\endcsname %It's defined, so just use it.
        !          1515: }}
        !          1516: 
        !          1517: % Read the last existing aux file, if any.  No error if none exists.
        !          1518: 
        !          1519: % This is the macro invoked by entries in the aux file.
        !          1520: \def\xrdef #1#2{
        !          1521: {\catcode`\'=\other\expandafter \gdef \csname X#1\endcsname {#2}}}
        !          1522: 
        !          1523: {
        !          1524: \catcode `\^^@=\other
        !          1525: \catcode `\&=\other
        !          1526: \catcode `\=\other
        !          1527: \catcode `\^^C=\other
        !          1528: \catcode `\^^D=\other
        !          1529: \catcode `\^^E=\other
        !          1530: \catcode `\^^F=\other
        !          1531: \catcode `\^^G=\other
        !          1532: \catcode `\^^H=\other
        !          1533: \catcode `\=\other
        !          1534: \catcode `\^^L=\other
        !          1535: \catcode `\=\other
        !          1536: \catcode `\=\other
        !          1537: \catcode `\=\other
        !          1538: \catcode `\=\other
        !          1539: \catcode `\=\other
        !          1540: \catcode `\=\other
        !          1541: \catcode `\=\other
        !          1542: \catcode `\=\other
        !          1543: \catcode `\=\other
        !          1544: \catcode `\=\other
        !          1545: \catcode `\=\other
        !          1546: \catcode `\=\other
        !          1547: \catcode `\=\other
        !          1548: \catcode `\^^[=\other
        !          1549: \catcode `\^^\=\other
        !          1550: \catcode `\^^]=\other
        !          1551: \catcode `\^^^=\other
        !          1552: \catcode `\^^_=\other
        !          1553: \catcode `\@=\other
        !          1554: \catcode `\^=\other
        !          1555: \catcode `\~=\other
        !          1556: \catcode `\[=\other
        !          1557: \catcode `\]=\other
        !          1558: \catcode`\"=\other
        !          1559: \catcode`\_=\other
        !          1560: \catcode`\|=\other
        !          1561: \catcode`\<=\other
        !          1562: \catcode`\>=\other
        !          1563: \catcode `\$=\other
        !          1564: \catcode `\#=\other
        !          1565: \catcode `\&=\other
        !          1566: 
        !          1567: % the aux file uses ' as the escape.
        !          1568: % Turn off \ as an escape so we do not lose on
        !          1569: % entries which were dumped with control sequences in their names.
        !          1570: % For example, 'xrdef {$\leq $-fun}{page ...} made by @defun ^^
        !          1571: % Reference to such entries still does not work the way one would wish,
        !          1572: % but at least they do not bomb out when the aux file is read in.
        !          1573: 
        !          1574: \catcode `\{=1 \catcode `\}=2
        !          1575: \catcode `\%=\other
        !          1576: \catcode `\'=0
        !          1577: \catcode `\\=\other
        !          1578: 
        !          1579: 'openin 1 'jobname.aux
        !          1580: 'ifeof 1 'else 'closein 1 'input 'jobname.aux
        !          1581: 'fi
        !          1582: }
        !          1583: 
        !          1584: % Open the new aux file.  Tex will close it automatically at exit.
        !          1585: 
        !          1586: \openout \auxfile=\jobname.aux
        !          1587: 
        !          1588: % Footnotes.
        !          1589: 
        !          1590: \newcount \footnoteno
        !          1591: 
        !          1592: \def\supereject{\par\penalty -20000\footnoteno =0 }
        !          1593: 
        !          1594: \let\ptexfootnote=\footnote
        !          1595: 
        !          1596: {\catcode `\@=11
        !          1597: \gdef\footnote{\global\advance \footnoteno by \@ne
        !          1598: \edef\thisfootno{$^{\the\footnoteno}$}%
        !          1599: \let\@sf\empty
        !          1600: \ifhmode\edef\@sf{\spacefactor\the\spacefactor}\/\fi
        !          1601: \thisfootno\@sf\parsearg\footnotezzz}
        !          1602: 
        !          1603: \gdef\footnotezzz #1{\insert\footins{
        !          1604: \interlinepenalty\interfootnotelinepenalty
        !          1605: \splittopskip\ht\strutbox % top baseline for broken footnotes
        !          1606: \splitmaxdepth\dp\strutbox \floatingpenalty\@MM
        !          1607: \leftskip\z@skip \rightskip\z@skip \spaceskip\z@skip \xspaceskip\z@skip
        !          1608: \footstrut\hang\textindent{\thisfootno}#1\strut}}
        !          1609: 
        !          1610: }%end \catcode `\@=11
        !          1611: 
        !          1612: % End of control word definitions.
        !          1613: 
        !          1614: \message{and turning on texinfo input format.}
        !          1615: 
        !          1616: \newindex{cp}
        !          1617: \newindex{fn}
        !          1618: \newindex{vr}
        !          1619: \newindex{tp}
        !          1620: \newindex{ky}
        !          1621: \newindex{pg}
        !          1622: 
        !          1623: % Set some numeric style parameters, for 8.5 x 11 format.
        !          1624: 
        !          1625: \hsize = 6.5in
        !          1626: \parindent 15pt
        !          1627: \parskip 18pt plus 1pt
        !          1628: \baselineskip 15pt
        !          1629: \advance\topskip by 1.2cm
        !          1630: 
        !          1631: % Use @smallbook to reset parameters for 7x9.5 format
        !          1632: \def\smallbook{
        !          1633: \global\lispnarrowing = 0.3in
        !          1634: \global\baselineskip 12pt
        !          1635: \global\parskip 3pt plus 1pt
        !          1636: \global\hsize = 5in
        !          1637: \global\doublecolumnhsize=2.4in \global\doublecolumnvsize=15.0in
        !          1638: \global\vsize=7.5in
        !          1639: \global\tolerance=700
        !          1640: \global\hfuzz=1pt
        !          1641: 
        !          1642: \global\pagewidth=\hsize
        !          1643: \global\pageheight=\vsize
        !          1644: \global\font\ninett=cmtt9
        !          1645: 
        !          1646: \global\let\smalllisp=\smalllispx
        !          1647: \global\let\smallexample=\smalllispx
        !          1648: \global\def\Esmallexample{\Esmalllisp}
        !          1649: }
        !          1650: 
        !          1651: %% For a final copy, take out the rectangles
        !          1652: %% that mark overfull boxes (in case you have decided
        !          1653: %% that the text looks ok even though it passes the margin).
        !          1654: \def\finalout{\overfullrule=0pt}
        !          1655: 
        !          1656: % Turn off all special characters except @
        !          1657: % (and those which the user can use as if they were ordinary)
        !          1658: % Define certain chars to be always in tt font.
        !          1659: 
        !          1660: \catcode`\"=\active
        !          1661: \def\activedoublequote{{\tt \char '042}}
        !          1662: \let"=\activedoublequote
        !          1663: \catcode`\~=\active
        !          1664: \def~{{\tt \char '176}}
        !          1665: \chardef\hat=`\^
        !          1666: \catcode`\^=\active
        !          1667: \def^{{\tt \hat}}
        !          1668: \catcode`\_=\active
        !          1669: \def_{{\tt \char '137}}
        !          1670: \catcode`\|=\active
        !          1671: \def|{{\tt \char '174}}
        !          1672: \chardef \less=`\<
        !          1673: \catcode`\<=\active
        !          1674: \def<{{\tt \less}}
        !          1675: \chardef \gtr=`\>
        !          1676: \catcode`\>=\active
        !          1677: \def>{{\tt \gtr}}
        !          1678: 
        !          1679: \catcode`\@=0
        !          1680: 
        !          1681: % \rawbackslashxx output one backslash character in current font
        !          1682: {\catcode`\\=\other
        !          1683: @gdef@rawbackslashxx{\}}
        !          1684: 
        !          1685: % \rawbackslash redefines \ as input to do \rawbackslashxx.
        !          1686: {\catcode`\\=\active
        !          1687: @gdef@rawbackslash{@let\=@rawbackslashxx }}
        !          1688: 
        !          1689: % \normalbackslash outputs one backslash in fixed width font.
        !          1690: \def\normalbackslash{{\tt\rawbackslashxx}}
        !          1691: 
        !          1692: % Say @foo, not \foo, in error messages.
        !          1693: \escapechar=`\@
        !          1694: 
        !          1695: %% These look ok in all fonts, so just make them not special.  The @rm below
        !          1696: %% makes sure that the current font starts out as the newly loaded cmr10
        !          1697: \catcode`\$=\other \catcode`\%=\other \catcode`\&=\other \catcode`\#=\other
        !          1698: 
        !          1699: \catcode 17=0   @c Define control-q
        !          1700: \catcode`\\=\active
        !          1701: @let\=@normalbackslash
        !          1702: 
        !          1703: @textfonts
        !          1704: @rm

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