% 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
% Version 3.3 [p11a] --- Andreas Scherer, December 1994
% Version 3.3 [p11b] --- Andreas Scherer, March 1995
% Version 3.4 [p13] --- Andreas Scherer, August 1995

\ifx\undefined\documentclass\else\endinput\fi % LaTeX will use other macros

\input Xcwebmac.tex

% In case `german.sty' has been loaded, we have to redefine the `\3'
% macro for an optional break within a statement.  This should be the
% first command after `\input german.sty' in your CWEB source.
\def\originalthree{\def\3##1{\hfil\penalty##10\hfilneg}}

\def\.#1{\leavevmode\hbox{\tentex % typewriter type for strings
  \ifx\Cstringchars\undefined\else\Cstringchars\fi % special string characters
  \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
