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- % standard macros for WEB listings (in addition to PLAIN.TEX)
- \xdef\fmtversion{\fmtversion+WEBMAC4.1} % identifies current set of macros
- \parskip 0pt % no stretch between paragraphs
- \parindent 1em % for paragraphs and for the first line of Pascal text
-
- \font\eightrm=cmr8 \let\sc=\eightrm % NOT a caps-and-small-caps font!
- \let\mainfont=\tenrm
- \font\titlefont=cmr7 scaled\magstep4 % title on the contents page
- \font\ttitlefont=cmtt10 scaled\magstep2 % typewriter type in title
- \font\tentex=cmtex10 % TeX extended character set (used in strings)
- \fontdimen7\tentex=0pt % no extra space after punctuation
-
- \def\\#1{\hbox{\it#1\/\kern.05em}} % italic type for identifiers
- \def\|#1{\hbox{$#1$}} % one-letter identifiers look a bit better this way
- \def\{\hbox{\bf#1\/}} % boldface type for reserved words
- \def\.#1{\hbox{\tentex % typewriter type for strings
- \let\\=\BS % backslash in a string
- \let\'=\RQ % right quote in a string
- \let\`=\LQ % left quote in a string
- \let\{=\LB % left brace in a string
- \let\}=\RB % right brace in a string
- \let\~=\TL % tilde in a string
- \let\ =\SP % space in a string
- \let\_=\UL % underline in a string
- \let\&=\AM % ampersand in a string
- #1}}
- \def\#{\hbox{\tt\char`\#}} % parameter sign
- \def\${\hbox{\tt\char`\$}} % dollar sign
- \def\%{\hbox{\tt\char`\%}} % percent sign
- \def\^{\ifmmode\mathchar"222 \else\char`^ \fi} % pointer or hat
- % circumflex accents can be obtained from \^^D instead of \^
- \def\AT!{@} % at sign for control text
-
- \chardef\AM=`\& % ampersand character in a string
- \chardef\BS=`\\ % backslash in a string
- \chardef\LB=`\{ % left brace in a string
- \def\LQ{{\tt\char'22}} % left quote in a string
- \chardef\RB=`\} % right brace in a string
- \def\RQ{{\tt\char'23}} % right quote in a string
- \def\SP{{\tt\char`\ }} % (visible) space in a string
- \chardef\TL=`\~ % tilde in a string
- \chardef\UL=`\_ % underline character in a string
-
- \newbox\bak \setbox\bak=\hbox to -1em{} % backspace one em
- \newbox\bakk\setbox\bakk=\hbox to -2em{} % backspace two ems
-
- \newcount\ind % current indentation in ems
- \def\1{\global\advance\ind by1\hangindent\ind em} % indent one more notch
- \def\2{\global\advance\ind by-1} % indent one less notch
- \def\3#1{\hfil\penalty#10\hfilneg} % optional break within a statement
- \def\4{\copy\bak} % backspace one notch
- \def\5{\hfil\penalty-1\hfilneg\kern2.5em\copy\bakk\ignorespaces}% optional break
- \def\6{\ifmmode\else\par % forced break
- \hangindent\ind em\noindent\kern\ind em\copy\bakk\ignorespaces\fi}
- \def\7{\Y\6} % forced break and a little extra space
-
- \let\yskip=\smallskip
- \def\to{\mathrel{.\,.}} % double dot, used only in math mode
- \def\note#1#2.{\Y\noindent{\hangindent2em\baselineskip10pt\eightrm#1~#2.\par}}
- \def\lapstar{\rlap{*}}
- \def\startsection{\Q\noindent{\let\*=\lapstar\bf\modstar.\quad}}
- \def\defin#1{\global\advance\ind by 2 \1\&{#1 }} % begin `define' or `format'
- \def\A{\note{See also section}} % crossref for doubly defined section name
- \def\As{\note{See also sections}} % crossref for multiply defined section name
- \def\B{\mathopen{\.{@\{}}} % begin controlled comment
- \def\C#1{\ifmmode\gdef\XX{\null$\null}\else\gdef\XX{}\fi % Pascal comments
- \XX\hfil\penalty-1\hfilneg\quad$\{\,$#1$\,\}$\XX}
- \def\D{\defin{define}} % macro definition
- \def\E{\cdot10^} % exponent in floating point constant
- \def\ET{ and~} % conjunction between two section numbers
- \def\ETs{, and~} % conjunction between the last two of several section numbers
- \def\F{\defin{format}} % format definition
- \let\G=\ge % greater than or equal sign
- \def\H#1{\hbox{\rm\char"7D\tt#1}} % hexadecimal constant
- \let\I=\ne % unequal sign
- \def\J{\.{@\&}} % TANGLE's join operation
- \let\K=\gets % left arrow
- \let\L=\le % less than or equal sign
- \outer\def\M#1.{\MN#1.\ifon\vfil\penalty-100\vfilneg % beginning of section
- \vskip12ptminus3pt\startsection\ignorespaces}
- \outer\def\N#1.#2.{\MN#1.\vfil\eject % beginning of starred section
- \def\rhead{\uppercase{\ignorespaces#2}} % define running headline
- \message{*\modno} % progress report
- \edef\next{\write\cont{\Z{#2}{\modno}{\the\pageno}}}\next % to contents file
- \ifon\startsection{\bf\ignorespaces#2.\quad}\ignorespaces}
- \def\MN#1.{\par % common code for \M, \N
- {\xdef\modstar{#1}\let\*=\empty\xdef\modno{#1}}
- \ifx\modno\modstar \onmaybe \else\ontrue \fi \mark{\modno}}
- \def\O#1{\hbox{\rm\char'23\kern-.2em\it#1\/\kern.05em}} % octal constant
- \def\P{\rightskip=0pt plus 100pt minus 10pt % go into Pascal mode
- \sfcode`;=3000
- \pretolerance 10000
- \hyphenpenalty 10000 \exhyphenpenalty 10000
- \global\ind=2 \1\ \unskip}
- \def\Q{\rightskip=0pt % get out of Pascal mode
- \sfcode`;=1500 \pretolerance 200 \hyphenpenalty 50 \exhyphenpenalty 50 }
- \let\R=\lnot % logical not
- \let\S=\equiv % equivalence sign
- \def\T{\mathclose{\.{@\}}}} % terminate controlled comment
- \def\U{\note{This code is used in section}} % crossref for use of a section
- \def\Us{\note{This code is used in sections}} % crossref for uses of a section
- \let\V=\lor % logical or
- \let\W=\land % logical and
- \def\X#1:#2\X{\ifmmode\gdef\XX{\null$\null}\else\gdef\XX{}\fi % section name
- \XX$\langle\,$#2{\eightrm\kern.5em#1}$\,\rangle$\XX}
- \def\Y{\par\yskip}
- \let\Z=\let % now you can \send the control sequence \Z
- \def\){\hbox{\.{@\$}}} % sign for string pool check sum
- \def\]{\hbox{\.{@\\}}} % sign for forced line break
- \def\=#1{\kern2pt\hbox{\vrule\vtop{\vbox{\hrule
- \hbox{\strut\kern2pt\.{#1}\kern2pt}}
- \hrule}\vrule}\kern2pt} % verbatim string
- \let\~=\ignorespaces
- \let\*=*
-
- \def\onmaybe{\let\ifon=\maybe} \let\maybe=\iftrue
- \newif\ifon \newif\iftitle \newif\ifpagesaved
- \def\lheader{\mainfont\the\pageno\eightrm\qquad\rhead\hfill\title\qquad
- \tensy x\mainfont\topmark} % top line on left-hand pages
- \def\rheader{\tensy x\mainfont\topmark\eightrm\qquad\title\hfill\rhead
- \qquad\mainfont\the\pageno} % top line on right-hand pages
- \def\page{\box255 }
- \def\normaloutput#1#2#3{\ifodd\pageno\hoffset=\pageshift\fi
- \shipout\vbox{
- \vbox to\fullpageheight{
- \iftitle\global\titlefalse
- \else\hbox to\pagewidth{\vbox to10pt{}\ifodd\pageno #3\else#2\fi}\fi
- \vfill#1}} % parameter #1 is the page itself
- \global\advance\pageno by1}
-
- \def\rhead{\.{WEB} OUTPUT} % this running head is reset by starred sections
- \def\title{} % an optional title can be set by the user
- \def\topofcontents{\centerline{\titlefont\title}
- \vfill} % this material will start the table of contents page
- \def\botofcontents{\vfill} % this material will end the table of contents page
- \def\contentspagenumber{0} % default page number for table of contents
- \newdimen\pagewidth \pagewidth=6.5in % the width of each page
- \newdimen\pageheight \pageheight=8.7in % the height of each page
- \newdimen\fullpageheight \fullpageheight=9in % page height including headlines
- \newdimen\pageshift \pageshift=0in % shift righthand pages wrt lefthand ones
- \def\magnify#1{\mag=#1\pagewidth=6.5truein\pageheight=8.7truein
- \fullpageheight=9truein\setpage}
- \def\setpage{\hsize\pagewidth\vsize\pageheight} % use after changing page size
- \def\contentsfile{CONTENTS} % file that gets table of contents info
- \def\readcontents{\input CONTENTS}
-
- \newwrite\cont
- \output{\setbox0=\page % the first page is garbage
- \openout\cont=\contentsfile
- \global\output{\normaloutput\page\lheader\rheader}}
- \setpage
- \vbox to \vsize{} % the first \topmark won't be null
-
- \def\ch{\note{The following sections were changed by the change file:}
- \let\*=\relax}
- \newbox\sbox % saved box preceding the index
- \newbox\lbox % lefthand column in the index
- \def\inx{\par\vskip6pt plus 1fil % we are beginning the index
- \write\cont{} % ensure that the contents file isn't empty
- \closeout\cont % the contents information has been fully gathered
- \output{\ifpagesaved\normaloutput{\box\sbox}\lheader\rheader\fi
- \global\setbox\sbox=\page \global\pagesavedtrue}
- \pagesavedfalse \eject % eject the page-so-far and predecessors
- \setbox\sbox\vbox{\unvbox\sbox} % take it out of its box
- \vsize=\pageheight \advance\vsize by -\ht\sbox % the remaining height
- \hsize=.5\pagewidth \advance\hsize by -10pt
- % column width for the index (20pt between cols)
- \parfillskip 0pt plus .6\hsize % try to avoid almost empty lines
- \def\lr{L} % this tells whether the left or right column is next
- \output{\if L\lr\global\setbox\lbox=\page \gdef\lr{R}
- \else\normaloutput{\vbox to\pageheight{\box\sbox\vss
- \hbox to\pagewidth{\box\lbox\hfil\page}}}\lheader\rheader
- \global\vsize\pageheight\gdef\lr{L}\global\pagesavedfalse\fi}
- \message{Index:}
- \parskip 0pt plus .5pt
- \outer\def\:##1, {\par\hangindent2em\noindent##1:\kern1em} % index entry
- \let\ttentry=\. \def\.##1{\ttentry{##1\kern.2em}} % give \tt a little room
- \def\[##1]{$\underline{##1}$} % underlined index item
- \rm \rightskip0pt plus 2.5em \tolerance 10000 \let\*=\lapstar
- \hyphenpenalty 10000 \parindent0pt}
- \def\fin{\par\vfill\eject % this is done when we are ending the index
- \ifpagesaved\null\vfill\eject\fi % output a null index column
- \if L\lr\else\null\vfill\eject\fi % finish the current page
- \parfillskip 0pt plus 1fil
- \def\rhead{NAMES OF THE SECTIONS}
- \message{Section names:}
- \output{\normaloutput\page\lheader\rheader}
- \setpage
- \def\note##1##2.{\hfil\penalty-1\hfilneg\quad{\eightrm##1~##2.}}
- \linepenalty=10 % try to conserve lines
- \def\U{\note{Used in section}} % crossref for use of a section
- \def\Us{\note{Used in sections}} % crossref for uses of a section
- \def\:{\par\hangindent 2em}\let\*=*\let\.=\ttentry}
- \def\con{\par\vfill\eject % finish the section names
- \rightskip 0pt \hyphenpenalty 50 \tolerance 200
- \setpage
- \output{\normaloutput\page\lheader\rheader}
- \titletrue % prepare to output the table of contents
- \pageno=\contentspagenumber \def\rhead{TABLE OF CONTENTS}
- \message{Table of contents:}
- \topofcontents
- \line{\hfil Section\hbox to3em{\hss Page}}
- \def\Z##1##2##3{\line{\ignorespaces##1
- \leaders\hbox to .5em{.\hfil}\hfil\ ##2\hbox to3em{\hss##3}}}
- \readcontents\relax % read the contents info
- \botofcontents \end} % print the contents page(s) and terminate
-