% standard macros for CWEB listings (in addition to plain.tex)
% Version 2.0 --- Don Knuth, July 1990
% Version 2.0 [german] --- Carsten Steger, October 1991
% Version 2.0 [german] --- Andreas Scherer, February 1993
% Version 2.7 --- Don Knuth, July 1992
% Version 2.7 [p6c] --- Andreas Scherer, September 1993
% Version 2.8 --- Don Knuth, September 1992
% Version 2.8 [german] --- Carsten Steger, 1993
% Version 2.8 [p7] --- Andreas Scherer, October 1993
% Version 3.0 --- Don Knuth, June 1993
% Version 3.0 [p8e] --- Andreas Scherer, November 1993
% Version 3.1 [p9b] --- Andreas Scherer, January 1994
% Version 3.1 [p9c] --- Andreas Scherer, March 1994
% Version 3.1 [p9d] --- Andreas Scherer, July 1994
% Version 3.2 [p10] --- Andreas Scherer, August 1994
% Version 3.2 [p10b] --- Andreas Scherer, October 1994

\input Xcwebmac.tex

% For German users this may be a convenience.
% Comment the next two lines if you don't have it.
\input german.sty
\def\3#1{\hfil\penalty#10\hfilneg} % optional break within a statement

% The following macro files include umlauts and special characters
% according to different character encodings.  Choose the one that
% suits your system.  There is a `\Cstringchars' macro defined.
\input ecma94.sty % ISO 8859-1/ECMA-94/Latin-1
%\input hp8.sty   % HP Roman 8
%\input mac8.sty  % Macintosh 8-bit font
%\input pc850.sty % IBM PC International Codepage 850

\def\.#1{\leavevmode\hbox{\tentex % typewriter type for strings
  \Cstringchars % special characters in a string
  \let\\=\BS % backslash 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
  \let\^=\CF % circumflex in a string
  \ifx\originalTeX\undefined\else\originalTeX\fi#1\kern.05em}}

\def\postATL#1 #2 {\bf Buchstabe \\{\uppercase{\char"#1}}
   wird getangled als \tentex "#2"\egroup\par}
\def\ATH{\X\kern-.5em:Pr\"aprozessor Definitionen\X}

\def\A{\note{Siehe auch Abschnitt}} % xref for doubly defined section name
\def\As{\note{Siehe auch die Abschnitte}} % xref for multiply defined section name

\def\ET{ und~} % conjunction between two section numbers
\def\ETs{ und~} % conjunction between the last two of several section numbers

\def\Q{\note{Dieser Programmteil wird zitiert in Abschnitt}} % xref for mention of a section
\def\Qs{\note{Dieser Programmteil wird zitiert in den Abschnitten}} % xref for mentions of a section

\def\U{\note{Dieser Programmteil wird verwendet in Abschnitt}} % xref for use of a section
\def\Us{\note{Dieser Programmteil wird verwendet in den Abschnitten}} % xref for uses of a section

\gtitle={\.{CWEB} Ausgabe} % this running head is reset by starred sections
\mark{\noexpand\nullsec0{\the\gtitle}}

\def\ch{\note{Die folgenden Abschnitte sind vom Change-File ver\"andert worden:}
  \let\*=\relax}

\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\grouptitle{ABSCHNITTSNAMEN}
  \let\topsecno=\nullsec
  \message{Abschnittsnamen:}
  \output={\normaloutput\page\lheader\rheader}
  \setpage
  \def\note##1##2.{\quad{\eightrm##1~##2.}}
  \def\Q{\note{Zitiert in Abschnitt}} % crossref for mention of a section
  \def\Qs{\note{Zitiert in den Abschnitten}} % crossref for mentions of a section
  \def\U{\note{Verwendet in Abschnitt}} % crossref for use of a section
  \def\Us{\note{Verwendet in den Abschnitten}} % crossref for uses of a section
  \def\I{\par\hangindent 2em}\let\*=*
  \readsections}
\def\con{\par\vfill\eject % finish the section names
% \ifodd\pageno\else\titletrue\null\vfill\eject\fi % for duplex printers
  \rightskip 0pt \hyphenpenalty 50 \tolerance 200
  \setpage \output={\normaloutput\page\lheader\rheader}
  \titletrue % prepare to output the table of contents
  \pageno=\contentspagenumber
  \def\grouptitle{INHALTSVERZEICHNIS:}
  \message{Inhaltsverzeichnis:}
  \topofcontents
  \line{\hfil Abschnitt\hbox to3em{\hss Seite}}
  \let\ZZ=\contentsline
  \readcontents\relax % read the contents info
  \botofcontents \end} % print the contents page(s) and terminate
\def\today{\number\day.~\ifcase\month\or
  Januar\or Februar\or M\"arz\or April\or Mai\or Juni\or
  Juli\or August\or September\or Oktober\or November\or Dezember\fi
  \space\number\year}
\newcount\twodigits
\def\hours{\twodigits=\time \divide\twodigits by60 \printtwodigits
  \null\space\sc Uhr\space % distinguish between time and year
  \multiply\twodigits by-60 \advance\twodigits by\time \printtwodigits}
\def\datethis{\def\startsection{\leftline{\sc\today\ um \hours}\bigskip
  \let\startsection=\stsec\stsec}}
  % say `\datethis' in limbo, to get your listing timestamped before section 1
\def\datecontentspage{%
  \def\topofcontents{\leftline{\sc\today\ um \hours}\bigskip
   \centerline{\titlefont\title}\vfill}} % timestamps the contents page

% German quotes as of `German.sty', Version 2.4a, 12 April 1992.
% save current category code of `@'.  This code becomes active only
% when `german.sty' is not loaded at the beginning of this file.
\ifx\germanTeX\else
  \chardef\atcode=\catcode`\@
  \catcode`\@=11 % \makeatletter.
  \expandafter\let\expandafter\protect\csname protect\endcsname
  \def\allowhyphens{\penalty\@M \hskip\z@skip}
  \def\set@low@box#1{\setbox\tw@\hbox{,}\setbox\z@\hbox{#1}%
    \setbox\z@\hbox{\dimen@\ht\z@ \advance\dimen@ -\ht\tw@
        \lower\dimen@\box\z@}%
    \ht\z@\ht\tw@ \dp\z@\dp\tw@}
  \def\save@sf@q#1{{\ifhmode \edef\@SF{\spacefactor\the\spacefactor}\else
    \let\@SF\empty \fi \leavevmode #1\@SF}}
  \def\@glqq{\save@sf@q{\set@low@box{''\/}\box\z@\kern-.04em\allowhyphens}}
  \def\glqq{\protect\@glqq}
  \def\@grqq{\save@sf@q{\kern-.07em``\kern.07em}}
  \def\grqq{\protect\@grqq}
  \def\@glq{\save@sf@q{\set@low@box{'\/}\box\z@\kern-.04em\allowhyphens}}
  \def\glq{\protect\@glq}
  \def\@grq{\save@sf@q{\kern-.0125em`\kern.07em}}
  \def\grq{\protect\@grq}
  \catcode`\@=\atcode % return to previous catcode.
\fi