new (to TL) cweb-latex package (4feb07)

git-svn-id: svn://tug.org/texlive/trunk@5271 c570f23f-e606-0410-a88d-b1316a301751

5 files changed, 1686 insertions, 0 deletions

diff --git a/Master/texmf-dist/tex/latex/cweb-latex/cwbl-german.sty b/Master/texmf-dist/tex/latex/cweb-latex/cwbl-german.sty
new file mode 100644
index 00000000000..68a7ce6c054
--- /dev/null
+++ b/Master/texmf-dist/tex/latex/cweb-latex/cwbl-german.sty
@@ -0,0 +1,109 @@
+% $Id: cwbl-german.sty,v 1.1 1995/09/17 14:21:25 schrod Exp $
+%----------------------------------------------------------------------
+
+%
+% LaTeX2e package cwbl-german
+% adapt CWEB documents to language `german'
+%
+% [LaTeX2e]
+% (history at end)
+
+
+% Identification. The code below is explained in the implementation
+% documentation of the rcs package.
+
+\begingroup
+    \def\RCSPackage#1#2 $#3: #4 #5\endRCS $#6: #7 #8\endRCS{%
+        \def\date{#4}\def\id{v#7}%
+        \ProvidesPackage{#1}[\date\space\id\space #2]%
+        }
+
+  \RCSPackage{cwbl-german}{German CWEB documents}
+  $Date: 1995/09/17 14:21:25 $: 9999/00/00 \endRCS
+  $Revision: 1.1 $: 0.0 \endRCS
+\endgroup
+
+
+%
+% What's this package for?
+%
+% XXX
+%
+
+
+% This class is supported. Send bug reports, comments and repairs.
+%
+% The reference version may be retrieved via anonymous ftp from
+% |ftp.th-darmstadt.de| [130.83.47.112], directory |pub/tex/latex|. It's
+% placed there as a gzipped tar file. (The information on the
+% IP~number is dated 17 Sep 95. It might have changed, also
+% this is very unlikely. Use your friendly nameserver.)
+
+
+%%% ------------------------------------------------------------
+
+
+% at the end of chunks
+
+\def\CwebCRAlso{\CwebCrossRef{Siehe auch Baustein}}
+\def\CwebCRsAlso{\CwebCrossRef{Siehe auch Bausteine}}
+
+\def\CwebCRCite{\CwebCrossRef{Dies wird zitiert im Baustein}}
+\def\CwebCRsCite{\CwebCrossRef{Dies wird zitiert in den Bausteinen}}
+
+\def\CwebCRUse{\CwebCrossRef{Dies wird benutzt im Baustein}}
+\def\CwebCRsUse{\CwebCrossRef{Dies wird benutzt in den Bausteinen}}
+
+\def\CwebCREt{ und~}
+\def\CwebCRsEt{ und~}
+
+
+% back matter
+
+\def\CwebCRChanged{%
+    \CwebCrossRef{%
+        Die folgenden Bausteine wurden durch ein Changefile ge\"andert:%
+        }%
+    }
+\def\CwebChangedListName{Ge\"anderte Bausteine}
+
+
+\def\CwebRefListName{Verzeichnis der Verfeinerungen}
+
+\def\CwebXRCite{\CwebCrossRef{Zitiert im Baustein}}
+\def\CwebXRCites{\CwebCrossRef{Zitiert in den Bausteinen}}
+\def\CwebXRUse{\CwebCrossRef{Benutzt im Baustein}}
+\def\CwebXRUses{\CwebCrossRef{Benutzt in den Bausteinen}}
+
+
+\def\CwebMacrosHere{%
+    \begingroup
+        \def\CwebRefNumber##1{}%
+        \CwebRefName :Pr\"aprozessor Definitionen\X
+    \endgroup
+    }
+
+
+
+\endinput
+
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+% $Log: cwbl-german.sty,v $
+% Revision 1.1  1995/09/17  14:21:25  schrod
+%     Add support for German CWEB documents.
+%
+
+
+
+%%%------------------------------------------------------------
+
+% Local Variables:
+% mode: LaTeX
+% TeX-brace-indent-level: 4
+% TeX-parse-self: nil
+% TeX-auto-save: nil
+% TeX-master: t
+% page-delimiter: "^%%%"
+% End:
diff --git a/Master/texmf-dist/tex/latex/cweb-latex/cweb.cls b/Master/texmf-dist/tex/latex/cweb-latex/cweb.cls
new file mode 100644
index 00000000000..ae512c54b15
--- /dev/null
+++ b/Master/texmf-dist/tex/latex/cweb-latex/cweb.cls
@@ -0,0 +1,1417 @@
+% $StyleId: cweb.doc,v 3.6 1995/11/30 15:44:53 schrod Exp $
+%----------------------------------------------------------------------
+% Written by Joachim Schrod <schrod@iti.informatik.th-darmstadt.de>.
+% Copyright conditions see below (GPL).
+
+%
+% LaTeX class cweb
+% support for LaTeX markup in CWEB sources
+%
+% [LaTeX in MAKEPROG]
+% (history at end)
+
+% If you have received this style file without the user manual (in the
+% file cweb-user.dvi or the respective LaTeX file), it's incomplete and
+% near to useless. If it was given to you as something that you shall
+% use as an author -- complain bitterly to your provider. You need the
+% documentation and you have a right on it! (Below you can find info
+% where to get the reference version.)
+
+
+
+
+%%%%
+%%%%
+%%%% These TeX macros were documented with the documentation system
+%%%% MAKEPROG and automatically converted to the current form.
+%%%% If you have MAKEPROG available you may transform it back to
+%%%% the original input: Remove every occurence of three percents
+%%%% and one optional blank from the beginning of a line and remove
+%%%% every line which starts with four percents.  The following lex
+%%%% program will do this:
+%%%%
+%%%%	%%
+%%%%
+%%%%	^%%%\ ?   ;
+%%%%	^%%%%.*\n ;
+%%%%
+%%%%	If you just want to print the documentation you may fetch
+%%%% the archive print-makeprog.tar.Z from ftp.th-darmstadt.de (directory
+%%%% pub/tex/latex). It contains *all* used styles -- but beware, they
+%%%% may not be in a documented form...
+%%%%
+%%%%
+%%% \documentclass{progltx}
+
+%%% \usepackage{cweb-doc}		% document-specific markup
+%%% \usepackage{fullpage}
+
+
+%%% \RCS $StyleRevision: 3.6 $
+%%% \RCS $StyleDate: 1995/11/30 15:44:53 $
+
+
+%%% \begin{document}
+
+
+%%% \title{The \texttt{cweb} Class\\
+%%%     {\large (Implementation)}%
+%%%     }
+%%% \author{%			% LaTeX does not discard unnecessary glue...
+%%%     Joachim Schrod%
+%%%     \thanks{%
+%%% 	\protect\raggedright
+%%% 	TU~Darmstadt, Computer Science Department, WG Systems Programming,
+%%% 	Alexanderstr.~10, D-64283~Darmstadt, Germany.
+%%% 	Email: \texttt{jschrod@acm.org}%
+%%% 	}%
+%%%     }
+%%% \date{%
+%%%     Revision \RCSStyleRevision\\
+%%%     (as of \RCSStyleDate)%
+%%%     }
+
+%%% \maketitle
+
+
+%%% % doesn't work with progltx yet
+%%% %\tableofcontents
+
+
+
+%%% % ------------------------------------------------------------
+%%% %
+%%% % subdocument: The user interface of cweb.cls
+%%% %
+
+%%% \input{cweb-user}
+
+%%% %
+%%% % ------------------------------------------------------------
+%%% %
+%%% % subdocument: The internal interface
+%%% %
+
+%%% \input{cweb-conf}
+
+%%% %
+%%% % ------------------------------------------------------------
+
+
+
+
+%%% \chap Implementation.
+
+%%% This implementation must typeset complete files output by \cweave{}.
+%%% Large parts of this task are available from the module \pkg{cwebbase}.
+%%% It remains mainly to implement document-level markup and front and
+%%% back matter (table of contents, index, etc.) In particular, the back
+%%% matter material is not trivial; its tags are behind |\end{document}|,
+%%% we have to read carefully behind the end of our \cweb{} document to
+%%% detect if we have to typeset them at all.
+
+
+%%% \sect This module reserves the namespace |cweb|.
+
+%%% \beginprog
+\ifx \cweb@loaded\undefined
+    \def\cweb@loaded{$StyleRevision: 3.6 $}
+\else
+    \PackageWarningNoLine{cweb}%
+        {Some other package already uses namespace `cweb'}
+\fi
+%%% \endprog
+
+
+%%% \sect Let's identify this class.
+
+%%% \noindent The code below is explained in the implementation
+%%% documentation of the \pkg{rcs} package.
+
+%%% \beginprog
+\begingroup
+    \def\RCSClass#1#2 $#3: #4 #5\endRCS $#6: #7 #8\endRCS{%
+	\def\date{#4}\def\id{v#7}%
+	\ProvidesClass{#1}[\date\space\id\space #2]%
+	}
+
+  \RCSClass{cweb}{LaTeX markup for CWEB sources}
+  $StyleDate: 1995/11/30 15:44:53 $: 9999/00/00 \endRCS
+  $StyleRevision: 3.6 $: 0.0 \endRCS
+\endgroup
+%%% \endprog
+
+
+%%% \sect This module is from a supported bundle. Send bug reports,
+%%% comments and repairs.
+
+%%% The reference version may be retrieved via anonymous ftp from
+%%% |ftp.th-darmstadt.de| [130.83.47.112], directory
+%%% |pub/programming/literate-programming/c.c++/|. It's
+%%% placed there as a gzipped tar file. (The information on the IP~number
+%%% is dated August~29,~1995.
+%%% It might have changed, although this is very unlikely. Use
+%%% your friendly nameserver.)
+
+
+%%% \sect This is freely distributable software; you can redistribute it
+%%% and/or modify it under the terms of the GNU General Public License as
+%%% published by the Free Software Foundation; either version~2 of the
+%%% License, or (at your option) any later version.
+
+%%% This software is distributed in the hope that it will be useful, but
+%%% \textbf{without any warranty}; without even the implied warranty of
+%%% \textbf{merchantability} or \textbf{fitness for a particular purpose}.
+%%% See the GNU General Public License for more details.
+
+%%% You should have received a copy of the GNU General Public License in
+%%% the file |License| along with this package; if not, write to the Free
+%%% Software Foundation, Inc., 675~Mass Ave, Cambridge, MA~02139,~USA.
+
+
+%%% \sect Before we start we declare some shorthands for category codes.
+%%% By declaring the underscore~`(|_|)' as letter we can use it in our
+%%% macros. (I agree with \textsc{D.~Knuth} that
+%%% |\identifier_several_words_long| is more readable than
+%%% |\IdentifierSeveralWordsLong| and in every case better than |\p@@@s|.)
+
+%%% As this is a \LaTeX{} style file the at sign is a letter anyhow; so
+%%% we can use the ``private'' \LaTeX{} macros; and with the underscore we
+%%% can make our own macros more readable.  But as we have to restore this
+%%% category code at the end of this macro file we store its former value
+%%% in the control sequence |\CatUsCode|. This method is better than to
+%%% use a group because not all macros have to be defined global this way.
+
+%%% Since somebody might use more styles from me, this cseqs might be
+%%% defined already.
+
+%%% \beginprog
+\ifx \CatEscape\undefined
+    \chardef\CatEscape=0
+    \chardef\CatOpen=1
+    \chardef\CatClose=2
+    \chardef\CatIgnore=9
+    \chardef\CatLetter=11
+    \chardef\CatOther=12
+    \chardef\CatActive=13		% is defined in Plain already
+
+    \chardef\CatUsCode=\catcode`\_
+\fi
+
+\catcode`\_=\CatLetter			% top level macro file
+%%% \endprog
+
+
+%%% \sect Problems over problems with different \LaTeX{} versions. I have
+%%% decided that I will take the same stand as the \LaTeX{} team: I will
+%%% only support the last two official \LaTeX{} versions, folks who run
+%%% older software might need to upgrade.
+
+%%% The implementation will use `star'-forms of \LaTeX{}'s command
+%%% definition macros. They were introduced with \LaTeX{}
+%%% \mbox{$\langle$1994/12/01$\rangle$}.
+
+%%% Currently (as of 07 Nov 95), 1995/06/01 is the most recent version.
+%%% I want to use a features introduced with that version: |\newif| is not
+%%% outer any more. So I check here for the version and supply the new
+%%% definition if necessary.
+
+%%% \beginprog
+\NeedsTeXFormat{LaTeX2e}[1994/12/01]
+\@ifl@t@r \fmtversion{1995/06/01}{}% else
+    {
+	\@namedef{newif}#1{%
+	    \count@\escapechar \escapechar\m@ne
+	    \let#1\iffalse
+	    \@if#1\iftrue
+	    \@if#1\iffalse
+	    \escapechar\count@
+	    }
+	\def\@if#1#2{%
+	    \expandafter\def
+	        \csname \expandafter\@gobbletwo\string#1%
+		    \expandafter\@gobbletwo\string#2\endcsname {%
+		\let#1#2%
+		}%
+	    }
+    }
+%%% \endprog
+
+
+
+
+%%% \chap Options.
+
+%%% Our options are of the ``keyword-value'' category. We realize them by
+%%% the \pkg{keyvald} package, an enhancement of the \pkg{keyval} package
+%%% from the Graphics bundle that supports defaulting for unknown keys.
+
+%%% \begin{fixme}
+%%%   Most of the code below should be extracted and moved to a
+%%%   \pkg{keyvalx} package (or a new version of \pkg{keyval}). In
+%%%   particular, support for package/class option processing, enumeration
+%%%   values, and set values for keyword options.
+%%% \end{fixme}
+
+%%% |\ProcessKeyValOptions| may be used instead of |\ProcessOptions|, it
+%%% takes the keyval set identifier as argument. At the end it evaluates
+%%% and resets a hook. That hook may be used at option definition to
+%%% define further dependencies. (E.g., enabling that option implies
+%%% enabling an other option, too.)
+%%% %
+%%% \begin{fixme}
+%%%   Like |\ProcessOptions|, I define |\@curroptions|, since I don't know
+%%%   if that's needed later. The only place where it could been needed is
+%%%   in the check for unprocessed options.
+%%% \end{fixme}
+
+%%% \beginprog
+\RequirePackage{keyvald}
+
+\let\ProcessKeyValOptionsHook\empty
+\providecommand*\ProcessKeyValOptions[1]{%
+    \edef\@curroptions{\@ptionlist{\@currname.\@currext}}%
+    \edef\next{\noexpand\setkeys{#1}{\@curroptions}}%
+    \next
+    \ProcessKeyValOptionsHook
+    \let\ProcessKeyValOptionsHook\empty
+    }
+%%% \endprog
+
+
+%%% \sect The enumeration option |structure| selects hierarchic~(0) or
+%%% flat~(1) structure. The predefined value is `hierarchic', there is no
+%%% default. The option value is bound to |\cweb@structure|.
+
+%%% \beginprog
+%% \define@key@enum{cweb}{structure}{hierarchic,flat}[hierarchic]
+\@namedef{KV@cweb@structure@enum:hierarchic}{0 }	% <-- space!
+\@namedef{KV@cweb@structure@enum:flat}{1 }		% <-- space!
+\define@key{cweb}{structure}{%
+    \expandafter\let \expandafter\@tempa
+    	    \csname KV@cweb@structure@enum:#1\endcsname % \relax if undefined
+    \ifx \@tempa\relax
+        \PackageError{cweb}%
+	    {%
+		Invalid value `#1' for option structure%
+	    }{%
+Possible valid values are `hierarchic' and `flat'.\MessageBreak
+The predefined value is `hierarchic'.\MessageBreak
+There's no default value, you have to specify one.%
+	    }%
+    \else
+	\let\cweb@structure\@tempa
+    \fi
+    }
+\setkeys{cweb}{structure=hierarchic}
+%%% \endprog
+
+
+%%% \sect With the set option |suppress| one can select suppression of
+%%% different document parts: |changehints| suppresses output of hints
+%%% that a changefile was involved, |unchanged| output of unchanged
+%%% chunks, |index| and |reflist| output of index and reference list, and
+%%% |format| output of `|@f|' directives.
+
+%%% The predefined value is no suppression. There is no default value.
+%%% %
+%%% \begin{fixme}
+%%%   Shouldn't I supply a default value? `|{index,reflist}|'?
+%%% \end{fixme}
+
+%%% Set options are represented by flags named
+%%% |@cweb@|\<option>|@|\<value>|@|.
+
+%%% \beginprog
+%% \define@key@set{cweb}{suppress}{changehints,unchanged,index,reflist,format}
+\@for \@tempa :=changehints,unchanged,index,reflist,format\do {%
+    \expandafter\newif \csname if@cweb@suppress@\@tempa @\endcsname
+    \csname @cweb@suppress@\@tempa @false\endcsname
+    }%
+\define@key{cweb}{suppress}{%
+    \@for \@tempa :=#1\do {%
+	\expandafter\let \expandafter\@tempb
+		\csname @cweb@suppress@\@tempa @true\endcsname
+	%% \relax if undefined
+	\ifx \@tempb\relax
+	    \PackageError{cweb}%
+		{%
+		    Invalid value `#1' for set option suppress%
+		}{%
+Possible valid values are `changehints', `unchanged',\MessageBreak
+or a comma-separated list of these words enclosed in braces.\MessageBreak
+Specified values are turned on, you can't turn them off.\MessageBreak
+No value is on initially.\MessageBreak
+There's no default value, you have to specify one.%
+		}%
+	\else
+	    \@tempb
+	\fi
+	}%
+    }
+
+\g@addto@macro\ProcessKeyValOptionsHook{%
+    \if@cweb@suppress@unchanged@
+	\@cweb@suppress@changehints@true
+    \fi
+    }
+%%% \endprog
+
+
+%%% \sect The base document class may be specified by the option
+%%% |baseclass|.
+
+%%% \beginprog
+\def\CwebBaseClass{article}
+\define@key{cweb}{baseclass}[report]{\def\CwebBaseClass{#1}}
+%%% \endprog
+
+
+%%% \sect Language-specific adaptions are stored in files
+%%% \texttt{cwbl-{\it language}.sty}. They may be accessed as packages or
+%%% by the |language| option that takes the \textit{language} as value. We
+%%% have to require the respective package at the end of the class, then
+%%% all cseqs with default names are defined and may be overwritten.
+
+%%% For some languages, we provide Babel-compatible option names, to ease
+%%% the usage of global class options taken up by other packages (like
+%%% \pkg{varioref}), too.
+
+%%% \beginprog
+\def\cweb_set_language#1{%
+    \IfFileExists{cwbl-#1.sty}{%
+      %% true
+	\RequirePackage{cwbl-#1}%
+      }{%
+      %% false
+	\ClassError{cweb}{Language `#1' is unknown.}{%
+Language definitions are stored in files `cwbl-<language>.sty'.\MessageBreak
+I could not locate the file `cwbl-#1.sty'. If you didn't make a%
+\MessageBreak
+typo, please check if there is such a file in a directory searched\MessageBreak
+by LaTeX.%
+	    }%
+	}%
+    }
+
+\define@key{cweb}{language}{\AtEndOfClass{\cweb_set_language{#1}}}
+
+\define@key{cweb}{german}[]{\setkeys{cweb}{language=german}}
+\define@key{cweb}{french}[]{\setkeys{cweb}{language=french}}
+\define@key{cweb}{italian}[]{\setkeys{cweb}{language=italian}}
+%%% \endprog
+
+
+
+
+%%% \chap Configuration, inheritance, and aggregation.
+
+%%% This chapter sets up access to other modules, therefore we restore the
+%%% original catcodes for the time being.
+
+%%% \beginprog
+\catcode`\_=\CatUsCode
+%%% \endprog
+
+
+%%% \sect As usual, we provide the possibility to configure this class.
+
+%%% \beginprog
+\InputIfFileExists{cweb.cfg}{%
+	\typeout{******************************************^^J%
+		 *^^J%
+		 * Using local configuration file cweb.cfg^^J%
+		 *^^J%
+		 ******************************************%
+		 }%
+    }{}
+%%% \endprog
+
+
+%%% \sect Inherit article class.
+
+%%% \beginprog
+\ifx \CwebBaseClass\undefined
+    \def\CwebBaseClass{article}
+\fi
+\define@key{cweb}*[]{\PassOptionsToClass{\KV@key}{\CwebBaseClass}}
+\ProcessKeyValOptions{cweb}
+\LoadClass{\CwebBaseClass}
+%%% \endprog
+
+
+%%% \sect OK, now comes our own code; switch on again our lexical
+%%% conventions.
+
+%%% \beginprog
+\catcode`\_=\CatLetter
+%%% \endprog
+
+
+
+
+%%% \chap Typesetting \cweave{} output.
+
+%%% This task has been out-sourced to an other module, \pkg{cwebbase}. As
+%%% mentioned at the start of the implementation, there remain mainly some
+%%% bigger tasks, they will be implemented in further sections below. For
+%%% the most part, the necessary preconditions are actually our class
+%%% option definitions, we don't have to do anything. (Gosh, what a
+%%% coincidence. :--) We need to tell \pkg{cwebbase}, that it should use
+%%% class warnings on problems.
+
+%%% \beginprog
+\let\cweb_warning=\ClassWarningNoLine
+\input{cwebbase}
+%%% \endprog
+
+
+%%% \sect But there remain also some small things to be done right now:
+%%% For flat structure, the counter |secnumdepth| must be set to~11, then
+%%% we want to number chunks in the whole document.
+
+%%% \beginprog
+\ifcase \cweb@structure
+    %% hierarchic
+  \or
+    %% flat
+    \setcounter{secnumdepth}{11}
+\fi
+%%% \endprog
+
+
+%%% \sect \pkg{cwebbase} uses |\part|, |\chapter| (if bound), and
+%%% |\section|.  We have no use for any other section division that came
+%%% from the base class, let's discard the standard ones.
+
+%%% \beginprog
+\let\subsection\undefined
+\let\subsubsection\undefined
+\let\paragraph\undefined
+\let\subparagraph\undefined
+%%% \endprog
+
+
+
+
+%%% \chap Table of contents.
+
+%%% The table of contents features only sections, chunks don't have
+%%% titles, after all. Titles are indented proportionally to the rank,
+%%% with an basic indentation of |\CwebTocIndent|. An entry on major
+%%% ranks may be differentiated by layout instead of indentation, as it's
+%%% done in standard \LaTeX{} classes, too.
+
+%%% The counter |\CwebTocIndentMaxLevel| constitutes an upper limit for a
+%%% recognized indent (concerning indentation, that is).
+
+%%% \beginprog
+\newdimen\CwebTocIndent
+	\CwebTocIndent=1.5em
+\newcount\CwebTocIndentMaxLevel
+	\CwebTocIndentMaxLevel=6	% increase indentation if <= max level
+%%% \endprog
+
+
+%%% \sect For hierarchic structure, we can ignore chunk entries
+%%% completely, but have to supply a bunch of definitions for entries of
+%%% type `|section|$l$'.  But for flat structure, sections are passed as
+%%% chunks, too.  Then the current rank is stored in the title, as
+%%% |\cwbbRank{|$r$|}|.  These differences are so large that we'll have
+%%% to make a very large |\ifcase|, over many chunks in this macro source
+%%% file. Let's start with the hierarchic stuff.
+
+%%% \beginprog
+\ifcase \cweb@structure
+    %% hierarchic
+    \def\l@chunk#1#2{}
+%%% \endprog
+
+
+%%% \sect Let's assume that we're subclassed from one of \LaTeX{}'s
+%%% standard classes; otherwise this stuff must be redefined, too. They
+%%% indent |\section| entries always by the same amount (1.5\,em), our
+%%% layout must fit to that.
+
+%%% If we have chapters, they are also indented by 1.5\,em and
+%%% distinguished by layout. The first minor section starts on rank~3 and
+%%% is placed on level~2, it should be indented larger. Let's simply add
+%%% 1.5\,em for each rank, that makes 3\,em for sections of type
+%%% |section2|. I.e., we use $f=l$ as a factor for our basic indentation.
+
+%%% If we don't have chapters, the first minor section starts on rank~2
+%%% and is placed also on level~2, it should be indented like sections
+%%% (1.5\,em), as it will be in another layout. I.e., we use $f=l-1$ as
+%%% the indentation factor.
+
+%%% The actual definitions are generated in a loop. `|\l@section|$l$'
+%%% expands to `|\cweb@toc_entry{|$l$|}|'. The indentation will be
+%%% computed within that macro.
+
+%%% \beginprog
+    \count@=2
+    \@whilenum \count@<11 \do {
+	\expandafter\edef \csname l@section\number\count@\endcsname{%
+	    \noexpand\cweb@toc_entry{\number\count@}%
+	    }
+	\advance \count@ by 1
+	}
+%%% \endprog
+
+
+%%% \sect A toc entry may be produced by |\@dottedtocline|. That cseq
+%%% needs the level (to decide if that entry is produced after all), the
+%%% entry indentation, the inner-entry indentation used for the number,
+%%% entry text, and page number.
+
+%%% As explained above, we use an indentation of $f \cdot
+%%% |\CwebTocIndent|$, if the level is not larger than
+%%% |\CwebTocIndentMaxLevel|. Otherwise we use the indentation of that
+%%% level.
+
+%%% Each entry is kind of an item with the number as the label. We need an
+%%% inner-entry indentation to be used for subsequent lines within this
+%%% entry. If a number is specified, it's tagged by |\numberline| in the
+%%% entry text. With a proper local definition and a pro-forma evaluation
+%%% of the text, we get at the width of the number (with a fitting space
+%%% for separation to text) and can use that as the inner-entry
+%%% indentation.
+
+%%% \beginprog
+    \def\cweb@toc_entry#1#2{%		% #3 (page) will follow
+	%% \count@ == factor for basic indentation
+	%%	      min(#1,TocIndentMaxRank) - correct_level
+	\ifnum #1>\CwebTocIndentMaxLevel
+	    \count@\CwebTocIndentMaxLevel
+	\else
+	    \count@ #1			% <-- space!
+	\fi
+	\ifx \chapter\undefined
+	    \advance \count@\m@ne
+	\fi
+	%% \dimen@ == inner-entry indentation
+	%% 	      width of number & space, if existing
+	\begingroup
+	    \global\dimen@ \z@		% assert value
+	    \def\numberline##1{\settowidth{\global\dimen@}{##1\enskip}}%
+	    \setbox\z@ \hbox{#2}%	% evaluates \numberline if specified
+	\endgroup
+	\@dottedtocline
+		{#1}%			% level
+		{\count@ \CwebTocIndent}% % basic indent
+		\dimen@			% num width
+		{#2}%			% entry; page will follow
+	}
+%%% \endprog
+
+
+%%% \sect We're done with toc configuration for hierarchic structure,
+%%% since entry definitions for |chapter| and |section| types exist
+%%% already. Let's turn over to the flat structure.
+
+%%% \beginprog
+  \or
+    %% flat
+%%% \endprog
+
+
+%%% \sect The section rank determines how they are featured in the table.
+%%% Titles on rank~0 are typeset boldface, other titles are dotted
+%%% contents lines in roman.
+
+%%% The rank is specified within the title, i.e., in the
+%%% first argument to |\l@chunk|, as an argument for the |\cwbbRank| tag.
+%%% With an appropriate definition we might set |\count@| to the
+%%% respective value. If it is not set, an explicite invocation of
+%%% |\section| or |\addcontentsline| is responsible for this entry. Then
+%%% we assume that the rank is~0.
+
+%%% \beginprog
+    \def\l@chunk#1{%			% page will be processed later
+	\count@\@ne			% default value of group level
+	\begingroup
+	    \let\numberline\@gobble	% width not known yet
+	    \def\cwbbRank##1{\global\count@ ##1\relax}%
+	    \setbox\z@ \hbox{#1}%
+	\endgroup
+	\ifnum \count@=\z@
+	    \let\next\cweb@bold_toc_line
+	\else
+	    \let\next\cweb@normal_toc_line
+	\fi
+	\next{#1}%
+	}
+%%% \endprog
+
+
+%%% \sect A boldface line is typeset similar to the definition of
+%%% |\@dottedtocline|, only with fewer parameters. It takes two
+%%% parameters, the entry and the page number.
+
+%%% \beginprog
+    \def\cweb@bold_toc_line#1#2{%
+	\addpenalty{\@secpenalty}%
+	\addvspace{1em plus\p@}%
+	\begingroup
+	    \noindent \bf
+	    \hangindent\CwebTocIndent
+	    \rightskip\@tocrmarg  \parfillskip -\rightskip
+	    \interlinepenalty\@M
+	    \@tempdima\CwebTocIndent	% for \numberline
+	    #1\nobreak\hfill \hbox to\@pnumwidth{\hss #2}%
+	    \par
+	\endgroup
+	}
+%%% \endprog
+
+
+%%% \sect A normal line uses |\@dottedtocline| like the hierarchic stuff.
+%%% Rank~1 shall still be on the same level as the bold toc line, so we
+%%% have to use $r-1$ as the proportional factor for |\CwebTocIndent|.
+
+%%% \beginprog
+    \def\cweb@normal_toc_line#1{%	% page will be processed later
+	\edef\next{\noexpand\@dottedtocline{\the\count@}}% % toc entry level
+	\ifnum \count@>\CwebTocIndentMaxLevel
+	    \count@ \CwebTocIndentMaxLevel
+	\fi
+	\advance\count@\m@ne		% group level -= 1
+        \next{\count@\CwebTocIndent}%	% basic indent
+	     \CwebTocIndent		% numwidth
+	     {#1}%			% entry
+	}
+%%% \endprog
+
+
+%%% \sect The first argument of |\@dottedtocline| is used to specify a
+%%% depth of the issued entry. All entries with a depth larger than
+%%% |tocdepth| are discarded. We typeset all entries, our |tocdepth|
+%%% value is the largest possible section level.
+
+%%% \beginprog
+    \setcounter{tocdepth}{10}
+%%% \endprog
+
+
+%%% \sect That's it. Close our distinction between hierarchic and flat
+%%% structure.
+
+%%% \beginprog
+\fi
+%%% \endprog
+
+
+
+
+%%% \chap The end of the document.
+
+%%% The end of a \cweave{} document is a rather complicated thing. It is
+%%% described in detail in the \cweave{} interface specification, we repeat the
+%%% most important points shortly.
+%%% %
+%%% \begin{itemize}
+
+%%% \item The user has issued an |\end{document}| tag in the documentation
+%%% part of the last chunk.
+
+%%% This tag is therefore part of a chunk, the chunk end (i.e., the
+%%% |\fi| cseq) does appear later in the document. Particularly, this
+%%% means that at the accurence of this tag there is still an open |\if|.
+
+%%% \item Between the |\end{document}| and the |\fi| a lot of text may
+%%% come which must be ignored. Within this text no |\fi| is allowed.
+
+%%% \item After the |\fi| the document may be finished by |\end|.
+%%% (Then the |-x| option of \cweave{} was used.)
+
+%%% Or additional information about the whole document is added: An
+%%% optional tag |\ch|, two mandatory tags |\inx\fin|, and another
+%%% optional tag |\con|.
+
+%%% \end{itemize}
+
+%%% Btw, the last chunk is marked as changed if any changefile entry has
+%%% been applied in the document. (In Plain \cweb{} that chunk is
+%%% colloquially used as the introduction to the index, and that shall be
+%%% printed always.) If we suppress unchanged chunks, the last
+%%% chunk will therefore always be processed, independent if it was really
+%%% changed or not. Yet another reason to use a whole chunk just for
+%%% |\end{document}|.
+
+%%% We'll use a the following approach for the implementation of the
+%%% iidentifier index and the refinement list (remember that we do not
+%%% produce a table of contents): We will check if there is any of these
+%%% two lists available. The available ones are typeset. Then we'll
+%%% finish the document. This functionality will be bound to |\fin|.
+%%% |\inx| will be simply a no-op. |\con| will never be reached, so we
+%%% don't have to cope with it.
+
+
+%%% \sect With the introduction of an end-document hook in \LaTeXe{}, one
+%%% might have hoped that we can utilize that hook for our task. But this
+%%% is not possible: We don't want to add some additional actions
+%%% \emph{into} the end-document handling, we want to look ahead and issue
+%%% lots of commands \emph{before} the end-document handling has happened.
+%%% (If you know \TeX{} by heart, you may skip the rest of the explanation
+%%% and go to the next chunk.)
+
+%%% As a macro language, \TeX{}'s cseqs take those tokens as arguments
+%%% that are behind them in the token stream. The token stream is
+%%% initially the document source, evaluation of a macro pushes its
+%%% expansion (a token list) on front of the stream. I.e., the evaluation
+%%% of |\end| will push the expansion on the token stream before
+%%% |\enddocument| is even looked at. And |\enddocument| will also push
+%%% its expansion before the hook is evaluated.
+
+%%% If we would allow |\enddocument| to push its expansion, all these
+%%% tokens have to be evaluated after we have typeset the backmatter --
+%%% after all, we need a proper document end, don't we?  One would need to
+%%% skip over them, look at and eventually evaluate tokens that come
+%%% behind (from the initial document stream, the document source), and
+%%% then evaluate the skipped tokens. That's too hairy, we don't know
+%%% exactly how many tokens to skip, this is probable to change in future
+%%% \LaTeX{} revisions, etc.
+
+%%% The pushed tokens from |\end| don't pose so much problems. As
+%%% |\enddocument| will terminate the document processing, they are not
+%%% evaluated anyhow, we can just throw them away. And |\end| has changed
+%%% only once in the last few years, so it seems to be a stable macro --
+%%% necessary as we need to know its expansion for propper skipping.
+
+%%% A very first consequence of the demand to process tokens after
+%%% |\end{document}| is that we have to save the ``standard'' \LaTeX{}
+%%% document termination, since we will execute that later.
+
+%%% \beginprog
+\let\cweb@save@enddocument=\enddocument
+%%% \endprog
+
+
+%%% \sect When we encounter |\end{document}| we have to skip tokens
+%%% until we reach a |\fi|. Then we establish the correct
+%%% environment for the material behind.
+
+%%% The skip itself is actually a bit difficil, so we'll look at it more
+%%% closely. |\enddocument| is executed within |\end|. As mentioned above,
+%%% the original
+%%% definition of |\enddocument| cheats, it terminates \LaTeX{} before
+%%% the rest of |\end| is executed. |\end| first checks if we're in
+%%% the correct current environment, then it establishs the end
+%%% processing for paragraph building environments, closes the
+%%% group---each environment is in its own group, executes the end
+%%% processing established before, and it may ignore following white
+%%% space.
+
+%%% The |document| pseudo-environment is different in that it isn't in a
+%%% group. I.e., we have to open a group which can be closed by |\end|
+%%% afterwards. The environment check will be done in this group. With
+%%% |\aftergroup| we establish a macro which will skip the rest of the
+%%% |\end| processing. This processing is not needed anyhow: |document|
+%%% is no paragraph building environment and the following white space is
+%%% ignored by ourselves. Since |document| is no paragraph building
+%%% environment, the end processing described above is empty, i.e., not
+%%% existant. Then come a few tokens which ignore the white space. One of
+%%% these tokens is a |\fi|, so we have to skip them first separately.
+%%% They are discarded by |\cweb@skip_end|, we can start to look
+%%% for our |\fi| afterwards.
+
+%%% If |\end{document}| is the first (i.e., the only) text in this chunk
+%%% we discard the chunk start marker. This is possible since it isn't set
+%%% until now, it's in the |\everypar| token register. Of course, then we
+%%% have to do the house keeping work stored in |\everypar| ourselves.
+
+%%% \beginprog
+\def\enddocument{%
+    \if@noskipsec
+	\global\everypar{}%
+	\global\@noskipsecfalse
+	\global\@nobreakfalse
+	\global\clubpenalty\@clubpenalty
+    \fi
+    \begingroup
+	\aftergroup\cweb@skip_end
+    }
+%%% \endprog
+
+
+%%% \sect Let's make sure that the expansion of |\end| is the one that we
+%%% expect. Then we can define |\cweb@skip_end| appropriately, we have to
+%%% skip 5~tokens.
+
+%%% \beginprog
+\CheckCommand*\end[1]{%
+  \csname end#1\endcsname\@checkend{#1}%
+  \expandafter\endgroup\if@endpe\@doendpe\fi
+% 1         2      3            4            5
+  \if@ignore\global\@ignorefalse\ignorespaces\fi}
+
+\def\cweb@skip_end#1#2#3#4#5{\cweb@check_fi}
+%%% \endprog
+
+
+%%% \sect |\cweb@check_fi| gets the next token, and invokes
+%%% |\cweb@do_check_fi| who really checks it. If this token is |\fi| we
+%%% can prepare to finish our document. Otherwise we have to check the
+%%% next token.
+
+%%% Of course, first the token we have checked already must be discarded.
+%%% Therefore we insert the followup action by |\afterassignment|. It's
+%%% important that the assignment gets \emph{only} the next token, we
+%%% have to supply both the equals sign and the optional blank which are
+%%% allowed between the both arguments to |\let|.
+
+%%% \beginprog
+\def\cweb@check_fi{%
+    \futurelet\next \cweb@do_check_fi
+    }
+\def\cweb@do_check_fi{%
+    \ifx \next\fi
+	\afterassignment\cweb@finish
+    \else
+	\afterassignment\cweb@check_fi
+    \fi
+    \let\next=			% <-- blank!!
+    }
+%%% \endprog
+
+
+%%% \sect When we found the |\fi|, we also discard it. But we're still
+%%% within a chunk, i.e., there is an open |\if|. So we must supply the
+%%% |\fi|.
+
+%%% \TeX{}nical note: |\next| is now equivalent to |\fi|. It must not be
+%%% used within a loop where it denotes the tail recursion's action. I.e.,
+%%% code like
+%%%  %
+%%% \begin{verbatim}
+%%%     \ifx \foo\bar
+%%%         \let\next\relax
+%%%     \else
+%%%         \let\next\continue
+%%%     \fi
+%%%     \next
+%%% \end{verbatim}
+%%%  %
+%%% will fail. This trap is closed by a redefinition of |\next|.
+
+%%% The output of all following lists may be suppressed by some option.
+%%% That is tested at the place where the respective list shall be
+%%% produced.
+
+%%% All following lists are typeset in CR state.
+
+%%% \beginprog
+\def\cweb@finish{%
+    \fi
+    \let\next\relax
+    \let\ch\cweb@changed_list
+    \let\inx\relax
+    \let\fin\cweb@end_document
+    \let\end\cweb@save@enddocument
+    \cwbb@CR
+    }
+%%% \endprog
+
+
+%%% \sect The following lists are started with unnumbered section
+%%% divisions. They are either chapters or sections.
+
+%%% \beginprog
+\ifx \chapter\undefined
+    \let\CwebListSectionDiv=\section
+\else
+    \let\CwebListSectionDiv=\chapter
+\fi
+\def\CwebListSection{\CwebListSectionDiv*}
+%%% \endprog
+
+
+%%% \sect The list of changed chunks is a cross reference list, (nearly)
+%%% like all others at the end of a chunk. The only difference is that
+%%% we do not show changeflags any more---each chunk number in this list
+%%% carries a change flag by definition.
+
+%%% \TeX{}nical note: The redefinition of |\*| is part of the second
+%%% argument of |\CwebCrossRef|. It is \emph{not} a global redefinition.
+
+%%% \beginprog
+\def\CwebCRChanged{%
+    \CwebCrossRef{The following chunks were changed by the change file:}%
+    }
+\def\CwebChangedListName{Changed Chunks}
+
+\if@cweb@suppress@changehints@
+    \def\cweb@changed_list#1.{}
+\else
+    \def\cweb@changed_list{%
+	\CwebListSection{\CwebChangedListName}%
+	\@mkboth{\uppercase{\CwebChangedListName}}%
+		{\uppercase{\CwebChangedListName}}%
+	\message{\CwebChangedListName}%
+	\let\CwebCRSize\relax
+	\CwebCRChanged \let\*\relax
+	}
+\fi
+%%% \endprog
+
+
+%%% \sect As outlined above, we want to check if there are any entries in
+%%% the identifier index or the refinement list. The former is stored in
+%%% the file |\jobname.idx|, the latter in the file |\jobname.scn|.
+
+%%% We write a macro |\cweb@if_file_not_empty| that's like |\IfFileExists|.
+
+%%% \beginprog
+\def\cweb@end_document{%
+    \cweb@if_file_not_empty{\jobname.idx}{%
+	\if@cweb@suppress@index@ \else
+	    \CwebIdIndex
+	\fi
+	}{}%
+    \cweb@if_file_not_empty{\jobname.scn}{%
+	\if@cweb@suppress@reflist@ \else
+	    \CwebRefList
+	\fi
+	}{}%
+    \cweb@save@enddocument
+    }
+%%% \endprog
+
+
+%%% \sect The paragraph layout for both the index and the refinement list
+%%% is much the same, it is taken from Plain \cweb{}: Each entry is a
+%%% paragraph, nearly no skip between the paragraphs (just a bit to
+%%% prevent underfull vboxes), no paragraph indentation, ragged right.
+%%% Overfull hboxes in the lists don't make sense, so we prevent them. And
+%%% we don't allow hyphenation.
+
+%%% \beginprog
+\def\cweb@list_par_layout{%
+    \parskip \z@ plus .5\p@
+    \parindent\z@
+    \rightskip \z@ plus 2.5em
+    \tolerance\@M \hyphenpenalty\@M
+    }
+%%% \endprog
+
+
+%%% \sect We consider a file as ``not empty'' if (1)~the file exists,
+%%% (2)~is not empty, and (3)~has a non-empty line at the very front.  (In
+%%% fact, an empty line at the front means that there should not be
+%%% anything behind it---but we can't test this portably.)
+
+%%% |\cweb@if_file_not_empty| tests the property, it's parametrized by the
+%%% file name and gets passed actions for the true and the false case.
+
+%%% We open the file first. Then we check if it doesn't exist or if it's
+%%% empty, both conditions deliver true on |\ifeof|; in this case we
+%%% pretend that there was an empty line. (The \LaTeX{} kernel already
+%%% once provided a macro for an empty line, |\@defpar|, we repeat that
+%%% definition here since it was discarded there.) Otherwise we read the
+%%% first line. At this state, the emptiness of the first line is
+%%% equivalent to the non-availability of entries, we can easily construct
+%%% an appropriate macro call to set the flag.
+
+%%% \beginprog
+\def\@defpar{\par}
+\def\cweb@if_file_not_empty#1#2#3{%
+    \openin\@inputcheck #1\relax
+    \ifeof \@inputcheck
+	\let\next\@defpar
+    \else
+	\read\@inputcheck to \next
+    \fi
+    \closein\@inputcheck
+    \ifx \next\@defpar
+        \def\reserved@a{#3}%
+    \else
+        \def\reserved@a{#2}%
+    \fi
+    \reserved@a
+    }
+%%% \endprog
+
+
+%%% \sect The identifier index is available in the file |\jobname.idx|.
+%%% The setup for the index is a mixture of the |theindex| environment of
+%%% the \cls{article} class and DEK's index macros. It's typeset in two
+%%% columns; the user may specify an introductionary text for the index
+%%% by |\cwebIndexIntro|. If there is any introductionary text we add a
+%%% medium skip below.
+
+%%% For the index, |\parfillskip| set in such a way that almost empty
+%%% lines are avoided.
+
+%%% Before we read in this file, we have to bind the special cseqs used
+%%% therein.
+
+%%% \begin{fixme}
+%%%   \LaTeX{} feature or bug? The optional argument of |\twocolumn| is
+%%%   typeset as a vbox, therefore the space at top of the section heading
+%%%   is not discarded at the top of a page. But we know that |\twocolumn|
+%%%   will start a page in any case, we must prevent the addition of this
+%%%   space. Looking in the source, we see that setting the flag
+%%%   |@nobreak| will prevent this addition, let's do that as a
+%%%   workaround. File a \LaTeX{} bug report?
+%%% \end{fixme}
+
+%%% \begin{fixme}
+%%%   Surprise: If |@nobreak| is set \emph{and} if there are no index
+%%%   entries, |\twocolumn| will drop its optional argument. (That
+%%%   happened to be noticed when there was an error in
+%%%   |\cweb@if_file_not_empty|.) File a \LaTeX{} bug report?
+%%% \end{fixme}
+
+%%% \begin{fixme}
+%%%   If |\CwebListSection| is a chapter tag of the standard classes, that
+%%%   macro will check if it's in twocolumn mode and will try to set
+%%%   itself at the top of the current page in full width, as it would
+%%%   have been given in an optional argument of |\twocolumn|. As the
+%%%   method that optional argument uses (a float) must not be nested, we
+%%%   must prevent this to happen. We set the |@twocolumn| flag to false,
+%%%   chapter macros will then think they're evaluated in a one-column
+%%%   document.  It's debatable if that is a kludge or even \emph{the}
+%%%   solution -- after all, within the optional argument we aren't in
+%%%   twocolumn mode any more. File a \LaTeX{} bug report?
+%%% \end{fixme}
+
+%%% \beginprog
+\newtoks\cwebIndexIntro
+	\cwebIndexIntro={}
+\def\CwebIdIndex{%
+    %% two column format
+    \columnseprule\z@
+    \columnsep 35\p@			% value is from article.sty
+    %% introduction of index
+    \twocolumn[%
+	\cwbb@tex
+	\@nobreaktrue			% don't add space in front of section
+	\@twocolumnfalse		% \CwebListSection might be \chapter
+	\CwebListSection{\indexname}%
+	\edef\intro{\the\cwebIndexIntro}% % is a local def
+	\ifx \intro\empty
+	\else
+	    \the\cwebIndexIntro\unskip
+	    \par\medskip
+	\fi
+	]%
+    \@mkboth{\uppercase{\indexname}}{\uppercase{\indexname}}%
+    \message{\indexname:}%	% tell the user what we're doing
+    %% paragraph layout
+    \cweb@list_par_layout
+    \parfillskip \z@ plus .6\hsize
+    %% bindings
+    \let\I\CwebIndexEntry
+    \let\[\CwebIndexDeclared
+    \let\*\cwbb@change_flag
+    %% read the index
+    \CwebReadIndex
+    }
+\def\CwebReadIndex{\@input{\jobname.idx}}
+%%% \endprog
+
+
+%%% \sect An index entry is typeset with the same hanging indentation like
+%%% a cross reference list.
+
+%%% The entry is tagged with |\.|, if it was entered by the \cweb{}
+%%% operator~`|@.|'. Then it shall be typeset as a string. But an indexed
+%%% name may also want to use |\.| as an accent. This is the same
+%%% situation as we had at the refinement names (in module
+%%% \pkg{cwebbase}), where we introduced |\cwbb@check_dot| to handle this
+%%% case. The same minor restriction as there holds here, a refinement
+%%% name may not consist of a single dot-accented expression. (|@:|~helps
+%%% in this singular case.)
+
+%%% \beginprog
+\def\CwebIndexEntry#1, {%
+    \par
+    \hangindent\CwebNumberListHangindent
+    \leavevmode
+    \cwbb@check_dot{#1}:\quad
+    }
+%%% \endprog
+
+
+%%% \sect The chunks where identifiers are declared are noted with
+%%% underlined numbers. We also must not forget the default declaration of
+%%% |\9|, the tag for the user definable index layout.
+
+%%% \beginprog
+\def\CwebIndexDeclared#1]{$\underline{#1}$}
+\def\9#1{}
+%%% \endprog
+
+
+%%% \sect The list of the refinement names is available in the file
+%%% |\jobname.scn|. The layout is taken from the plain version: ragged
+%%% right, each entry is a paragraph, the different cross reference
+%%% categories are separated by a quad.
+
+%%% We must initialize our whole paragraph layout, as the index might have
+%%% been suppressed and no initialization has happened there then. If
+%%% there was an index, it changed |\parfillskip| and |\*|, let's restore it.
+
+%%% \beginprog
+\def\CwebRefListName{List of Refinements}
+
+\def\CwebRefList{%
+    %% paragraph layout: like in index, but
+    \onecolumn
+    \cweb@list_par_layout
+    \parfillskip\@flushglue		% must be reset before section heading
+    \CwebListSection{\CwebRefListName}%
+    \@mkboth{\uppercase{\CwebRefListName}}%
+	    {\uppercase{\CwebRefListName}}%
+    \message{\CwebRefListName:}%
+    %% different bindings
+    \def\I{\par \hangindent\CwebNumberListHangindent}%
+    \def\CwebCrossRef##1##2.{\quad {\reset@font\footnotesize ##1~##2.}}%
+    \let\Q\CwebXRCite
+    \let\Qs\CwebXRCites
+    \let\U\CwebXRUse
+    \let\Us\CwebXRUses
+    \let\*\cwbb@change_flag
+    %% Read the list, allow configuration first.
+    \csname CwebRefListHook\endcsname
+    \CwebReadPPList
+    }
+\def\CwebReadPPList{\@input{\jobname.scn}}
+%%% \endprog
+
+
+%%% \sect Extra definitions for the sake of internationalization.
+
+%%% \beginprog
+\def\CwebXRCite{\CwebCrossRef{Cited in chunk}}
+\def\CwebXRCites{\CwebCrossRef{Cited in chunks}}
+\def\CwebXRUse{\CwebCrossRef{Used in chunk}}
+\def\CwebXRUses{\CwebCrossRef{Used in chunks}}
+%%% \endprog
+
+
+
+%%% \chap The end.
+
+%%% Well, after all we're finished with this class. We must not forget to
+%%% restore the underscore catcode.
+
+%%% \beginprog
+\catcode`\_=\CatUsCode
+
+\endinput
+%%% \endprog
+
+
+%%% \sect I would like to thank those who helped me to improve this module.
+%%% % In particular, XXX provided XXXsubstantial parts of the code.
+
+%%% \textsc{Michael M\"uller} and \textsc{Zden\v{e}k Wagner} did thorough
+%%% checks that helped me to improve the alpha test version.
+
+
+%%% 
+%%% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+%%% \vskip \PltxPreSectSkip
+
+%%% \begin{rcslog}
+%%% $StyleLog: cweb.doc,v $
+%%% \Revision 3.6 1995/11/30 15:44:53 schrod
+%%% Still didn't work with version \mbox{$\langle$1994/12/01$\rangle$},
+%%% the copy of |\newif| was not complete.\\
+%%% Problem reported by Michael Seel \path|<seel@mpi-sb.mpg.de>|.
+
+%%% \Revision 3.5 1995/11/20 22:34:18 schrod
+%%% Add language support.\\
+%%% Triggered by Christian Kumpf \path|<smurf@igd.fhg.de>| and Andreas
+%%% Scherer \path|<scherer@physik.rwth-aachen.de>|.
+
+%%% Use my `official' (ACM) email address.
+
+%%% \Revision 3.4 1995/11/07 17:55:18 schrod
+%%%     \LaTeX{} \cweb{} should work at least with the last two \LaTeX{}
+%%% versions; make it work with the previous-to-last one, version
+%%% \mbox{$\langle$1994/12/01$\rangle$}. For that, one has to install the
+%%% \mbox{$\langle$1995/06/01$\rangle$} (non-outer) definition of
+%%% |\newif|, and |\hb@xt@| must not be used.\\
+%%% Problem reported by Laurent Desnogues
+%%% \path|<laurent.desnogues@aiguemarine.unice.fr>| and somebody else (XXX
+%%% -- add name).
+
+%%% \Revision 3.3 1995/09/17 14:15:36 schrod
+%%% Initialize list paragraph layout in refinement list, too. With the
+%%% introduction of index suppression, the initialization -- located in
+%%% the index code -- might have been skipped.
+
+%%% \Revision 3.2 1995/09/15 10:22:59 schrod
+%%% The \cls{cweb} class needs at least \LaTeX{} version
+%%% \mbox{$\langle$1994/12/01$\rangle$}.\\
+%%% Problem reported by John S. Robinson \path|jsrobin@umiacs.umd.edu|.
+
+%%% \Revision 3.1 1995/09/12 23:00:48 schrod
+%%% Moved all code that does the actual typesetting of \cweave{} tags and
+%%% is therefore also needed for a |cweb| environment. It's now an own
+%%% module named \pkg{cwebbase}.
+
+%%% \Revision 2.8 1995/09/12 11:44:33 schrod
+%%% Standard base classes with chapters (i.e., report \& book) produced an
+%%% error at the start of the index: |\chapter| may not be called in the
+%%% optional argument of |\twocolumn|. Add a workaround to |\twocolumn|.\\
+%%% Problem reported by Christopher Higgins \path|<C.Higgins@cit.gu.edu.au>|.
+
+%%% \Revision 2.7 1995/08/29 17:32:36 schrod
+%%% Add hook for refinement list.
+
+%%% Allow internationalization of refinement list.\\
+%%% (Problem reported by Christian Kumpf \path|<kumpf@igd.fhg.de>|.)
+
+%%% Cweb bundle, version 1.0.
+
+%%% \Revision 2.6 1995/08/29 15:19:50 schrod
+%%% Added (hint to non-existence of) description of the internal interface.
+
+%%% \Revision 2.5 1995/08/29 02:07:26 schrod
+%%% Discard dependencies on 10\,pt fonts.
+
+%%% Support suppression of format directives.
+
+%%% \Revision 2.4 1995/08/27 19:31:43 schrod
+%%% Discard superfluous space at the top of index. Spacing in refinement
+%%% heading was wrong. Repair test on empty auxilliary files. Make
+%%% section heading for index and refinement list divisions (more)
+%%% configurable. Suppression of index and reference list is supported.
+
+%%% Make configuration of change flag easier.
+
+%%% Put section title of changed chunks list in marks, and tell the user
+%%% that it got typeset.
+
+%%% \Revision 2.3 1995/08/27 17:24:46 schrod
+%%% Make usage of baseclass with chapters work.
+
+%%% \Revision 2.2 1995/08/27 13:26:22 schrod
+%%% Add possibility to suppress change hints. Suppression of unchanged
+%%% chunks suppress change hints as well, they are meaningless as all
+%%% printed chunks are changed by definition.
+
+%%% Realize dependencies in options by |\ProcessKeyValOptionsHook|.
+%%% Illegal values for enumeration options don't alter the current value
+%%% any more.
+
+%%% List of changed chunks is an unnumbered section now.
+
+%%% \Revision 2.1 1995/08/25 19:11:18 schrod
+%%% Add keyword-value option style, with new \pkg{keyvald} package.
+
+%%% Hierarchic strucutures are supported now, in addition to the flat
+%%% structure of the beta-test version. One can choose with an option. For
+%%% that step, the terminology was cleaned up, too: Chunks are not named
+%%% sections any more. (That change involved reimplementation of almost
+%%% all the structure and toc stuff.)
+
+%%% The chunk number supplied by \cweave{} is used now, not some computed
+%%% number. Change flags are printed, too.
+
+%%% One can suppress output of unchanged sections.
+
+%%% One can select the baseclass with an option. That may be used to use
+%%% \cls{report} or \cls{book} to get chapter-style layout. Of course,
+%%% using an arbitrary baseclass is dangerous, it must conform to the
+%%% conventions of \LaTeX{} standard classes.
+
+%%% \Revision 1.13 1995/08/08 00:14:29 schrod
+%%% Updated to \LaTeXe{}, the |cweb| style is now a document class. Used
+%%% my standard templates for that, no changes in functionality.
+
+%%% \Revision 1.12  1993/08/10  14:15:43  schrod
+%%% New page on main section only if group level $<$ |\cwebSecNoEject|.
+%%% Default for the latter is 3.
+
+%%% Document that logos will not be defined in this style file.
+
+%%% Copy of plain macros for |\CwebNumber| does not work. Repaired the
+%%% most important one (subscript must be accessed via |\sb|).
+%%% Incompatibility to NFSS will be addressed later.\\
+%%% (Problems reported by Zden\v{e}k Wagner \path|<wagner@csearn.bitnet>|.)
+
+%%% \Revision 1.11  1993/08/10  11:21:07  schrod
+%%% Reference to section number does not render a period after the
+%%% number any more.
+
+%%% \Revision 1.10  1993/08/09  20:08:20  schrod
+%%% |\cweb@cweave_bindings| is now a no-op if \cweave{} bindings are in
+%%% effect already.\\
+%%% (Problem reported by Michael M\"uller \path|<mimu@mpi-sb.mpg.de>|.)
+
+%%% \Revision 1.9  1993/08/09  18:05:28  schrod
+%%% Left shift operator wasn't defined correctly.\\
+%%% (Problem reported by Michael M\"uller \path|<mimu@mpi-sb.mpg.de>|.)
+
+%%% \Revision 1.8  1993/06/15  15:22:30  schrod
+%%% \textbf{Version 0.2:} Moved from |pub/incoming| to official place, in
+%%% Literate Programming Archive.
+
+%%% \Revision 1.7  1993/06/15  13:25:48  schrod
+%%% First attempt to make it a style: |article| is imported. Warns the
+%%% user if he tries to use |cweb| as a style option.
+
+%%% \Revision 1.6  1993/06/15  08:49:23  schrod
+%%% |\cweb@check_dot| must not evaluate its argument in an |\edef|, this
+%%% causes problems if a |\PB| is within. Now I try hard not to evaluate any
+%%% tokens outside of my control.
+
+%%% Can use |\@defpar| for an empty line in |\cweb@has_entries|, don't
+%%% need an own macro.
+
+%%% \Revision 1.5  1993/06/14  17:50:30  schrod
+%%% Handle a missing |\con|: |\inx| and |\con| are now never looked at.
+%%% Instead |\fin| checks for the existence of the lists and typeset them
+%%% if there are entries available.
+
+%%% \Revision 1.4  1993/06/14  15:54:18  schrod
+%%% Made it work with older versions of \LaTeX{}, too. The |\enddocument|
+%%% implementation of cweb.sty depends on the |\end| implementation; check
+%%% if the current implementation is one we know of (currently: 91-01-14
+%%% and 92-03-25).\\
+%%% (Problem reported by Michael M\"uller \path|<mimu@mpi-sb.mpg.de>|.)
+
+%%% Add FSA diagram about processing states. CR state is also switched
+%%% to from \TeX{} state (that happens with |\ch| at the document end).
+
+%%% \Revision 1.3  1993/05/13  17:51:21  schrod
+%%% Refinements may also be filenames (`|@(|'). Then the complete name
+%%% consists of a |\.| macro call, which is handled now.\\
+%%% (Problem reported by Michael M\"uller \path|<mimu@mpi-sb.mpg.de>|.)
+
+%%% Made the detection of `|@.|' index entries more robust.
+
+%%% \Revision 1.2  1993/05/12  18:28:59  schrod
+%%% Adapted to recent changes of \cweave{} (of April 93):
+
+%%% Main sections have a group level, represented in the table of
+%%% contents. This changed the complete implementation of section tags.
+
+%%% New C token cseqs: |\Z| and |\MRL|, implemented as |\CwebLe| and
+%%% |\CwebCombinedOp|.
+
+%%% \Revision 1.1  1993/04/09  15:00:37  schrod
+%%% Initial revision
+
+%%% \end{rcslog}
+
+
+
+%%% \end{document}
+
+
+%%% 
+%%% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%%% Local Variables:
+%%% mode: LaTeX
+%%% TeX-brace-indent-level: 4
+%%% indent-tabs-mode: t
+%%% TeX-auto-untabify: nil
+%%% TeX-auto-regexp-list: LaTeX-auto-regexp-list
+%%% compile-command: "make cweb.cls"
+%%% End:
diff --git a/Master/texmf-dist/tex/latex/cweb-latex/cweb.cls.patch b/Master/texmf-dist/tex/latex/cweb-latex/cweb.cls.patch
new file mode 100644
index 00000000000..07f20ff7fa3
--- /dev/null
+++ b/Master/texmf-dist/tex/latex/cweb-latex/cweb.cls.patch
@@ -0,0 +1,36 @@
+This patch fixes cweb.cls so that it works with new versions of the
+LaTeX format.  (Any format later than 1997/06/30 or thereabouts is
+affected.)
+
+This patch may be freely redistributed.
+
+To use it, run the command "patch -p0 < cweb.cls.patch" in the
+directory containing cweb.cls if you have a UNIX-type system with the
+patch command.  If not, just make the necessary changes by hand to
+lines 846 and 848 as shown in the patch below.
+
+   Julian Gilbey <jdg@debian.org>, November 1999
+
+--- cweb.cls.orig
++++ cweb.cls
+@@ -836,16 +836,16 @@
+ 
+ %%% \sect Let's make sure that the expansion of |\end| is the one that we
+ %%% expect. Then we can define |\cweb@skip_end| appropriately, we have to
+-%%% skip 5~tokens.
++%%% skip 4~tokens.
+ 
+ %%% \beginprog
+ \CheckCommand*\end[1]{%
+   \csname end#1\endcsname\@checkend{#1}%
+   \expandafter\endgroup\if@endpe\@doendpe\fi
+-% 1         2      3            4            5
+-  \if@ignore\global\@ignorefalse\ignorespaces\fi}
++% 1         2            3            4
++  \if@ignore\@ignorefalse\ignorespaces\fi}
+ 
+-\def\cweb@skip_end#1#2#3#4#5{\cweb@check_fi}
++\def\cweb@skip_end#1#2#3#4{\cweb@check_fi}
+ %%% \endprog
+ 
+ 
diff --git a/Master/texmf-dist/tex/latex/cweb-latex/cwebarray.sty b/Master/texmf-dist/tex/latex/cweb-latex/cwebarray.sty
new file mode 100644
index 00000000000..1eb73a0d48b
--- /dev/null
+++ b/Master/texmf-dist/tex/latex/cweb-latex/cwebarray.sty
@@ -0,0 +1,50 @@
+% $Id: cwebarray.sty,v 1.2 1995/08/08 00:14:31 schrod Exp $
+%----------------------------------------------------------------------
+
+%
+% LaTeX style option cwebarray
+% depends on array style option
+%
+% [LaTeX]
+% (history at end)
+
+\ProvidesPackage{cwebarray}
+
+
+%
+% What's this style option for?
+%
+% If you use CWEB, you cannot use vertical bars (`|') as rule specifiers in
+% tables any more; CWEAVE processes them already. This style option
+% defines `I' (that's an uppercase i) as a replacement for the
+% vertical bar.
+%
+% I.e., write
+%
+%	\begin{tabular}{lIl}
+%
+% instead of \begin{tabular}{l|l}.
+
+% This option won't work without the array style.
+
+\ifx \d@llarbegin\undefined
+    \RequirePackage{array}
+\fi
+
+\newcolumntype{I}{|}
+
+
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+% $Log: cwebarray.sty,v $
+% Revision 1.2  1995/08/08  00:14:31  schrod
+% Updated to \LaTeXe{}, the |cweb| style is now a document class. Used
+% my standard templates for that, no changes in functionality.
+%
+% Revision 1.1  1993/08/09  18:05:55  schrod
+%     Mentioned that `|' cannot be used for LaTeX purposes, in
+% particular, not for ruled tables. Described workarounds, one of them
+% is the new style option cwebarray.
+% [Reported by Felix G\"artner]
+%
diff --git a/Master/texmf-dist/tex/latex/cweb-latex/keyvald.sty b/Master/texmf-dist/tex/latex/cweb-latex/keyvald.sty
new file mode 100644
index 00000000000..2f6e49cef8a
--- /dev/null
+++ b/Master/texmf-dist/tex/latex/cweb-latex/keyvald.sty
@@ -0,0 +1,74 @@
+%% 
+%% This is file `keyvald.sty', generated on <1995/11/30> 
+%% with the docstrip utility (2.2i).
+%% 
+%% The original source files were:
+%% 
+%% keyvald.dtx  (with options: `package')
+%% 
+%% IMPORTANT NOTICE:
+%% You are not allowed to distribute this file.
+%% For distribution of the original source see
+%% the copyright notice in the file keyvald.dtx .
+%% 
+%% $ITI: keyvald.dtx,v 1.2 1995/08/25 19:00:31 schrod Exp $
+%%------------------------------------------------------------
+%% (history at end)
+%% File: keyvald.dtx; changed version of
+%% File: keyval.dtx Copyright (C) 1993-1994 David Carlisle
+\NeedsTeXFormat{LaTeX2e}
+\ProvidesPackage{keyvald}
+                 [1994/08/23 v1.08.1 key=value parser (DPC) w/ defaults (js)]
+\def\setkeys#1#2{%
+  \def\KV@prefix{KV@#1@}%
+  \KV@do#2,\relax,}
+\def\KV@do#1,{%
+ \ifx\relax#1\empty\else
+  \KV@split#1==\relax
+  \expandafter\KV@do\fi}
+\def\KV@split#1=#2=#3\relax{%
+  \KV@@sp@def\KV@key{#1}%
+  \ifx\KV@key\@empty\else
+    \expandafter\let\expandafter\@tempc
+      \csname\KV@prefix\KV@key\endcsname
+    \ifx \@tempc\relax
+      \expandafter\let \expandafter\@tempc
+        \csname\KV@prefix*\endcsname
+      \def\@tempa{*}%
+    \else
+      \let\@tempa\KV@key
+    \fi
+    \ifx\@tempc\relax
+      \KV@err{\KV@key\space undefined}%
+    \else
+      \ifx\@empty#3\@empty
+        \KV@default
+      \else
+        \KV@@sp@def\@tempb{#2}%
+        \expandafter\@tempc\expandafter{\@tempb}\relax
+      \fi
+    \fi
+  \fi}
+\def\KV@default{%
+  \expandafter\let\expandafter\@tempb
+    \csname\KV@prefix\@tempa @default\endcsname
+  \ifx\@tempb\relax
+    \KV@err{No value specified for \KV@key}%
+  \else
+    \@tempb\relax
+  \fi}
+\def\KV@err#1{\PackageError{keyvald}{#1}{}}
+\def\@tempa#1{%
+\def\KV@@sp@def##1##2{\KV@@sp@b##2\@nil\@nil#1\@nil\relax##1}}
+\@tempa{ }
+\def\KV@@sp@b#1#2 \@nil{\KV@@sp@c#1#2}
+\def\KV@@sp@c#1\@nil#2\relax#3{\def#3{#1}}
+\def\define@key#1#2{%
+  \@ifnextchar[{\KV@def{#1}{#2}}{\@namedef{KV@#1@#2}####1}}
+\def\KV@def#1#2[#3]{%
+  \@namedef{KV@#1@#2@default\expandafter}\expandafter
+    {\csname KV@#1@#2\endcsname{#3}}%
+  \@namedef{KV@#1@#2}##1}
+\endinput
+%% 
+%% End of file `keyvald.sty'.