Fix ctan2tds for pgf installation

comment powerdot-doc-vn in tpm-ctan-check, it always breaks

Update of the following packages:
labelcas pstricks-add sectionbox ltxmisc frenchle flowfram verse emulateapj
pst-pdf poemscol babelbib dk-bib breakurl screenplay ncctools xkeyval bibleref
muthesis pst-labo pgf ncclatex active-conf xcolor commath lineno dottex makeplo


git-svn-id: svn://tug.org/texlive/trunk@2240 c570f23f-e606-0410-a88d-b1316a301751

2 files changed, 794 insertions, 308 deletions

diff --git a/Master/texmf-dist/source/latex/labelcas/labelcas.dtx b/Master/texmf-dist/source/latex/labelcas/labelcas.dtx
index 6ec5108c23c..d3be1f91ac8 100644
--- a/Master/texmf-dist/source/latex/labelcas/labelcas.dtx
+++ b/Master/texmf-dist/source/latex/labelcas/labelcas.dtx
@@ -2,7 +2,7 @@
 %
 % Copyright (C) 2006 by Ulrich Diez <ulrich.diez@alumni.uni-tuebingen.de>
 %
-% This work may be distributed and/or modified under the conditions of
+% This Work may be distributed and/or modified under the conditions of
 % the LaTeX Project Public License, either version 1.3 of this license
 % or (at your option) any later version.  The latest version of this
 % license is in:
@@ -12,27 +12,59 @@
 % and version 1.3 or later is part of all distributions of LaTeX version
 % 2003/12/01 or later.
 %
+% This Work has the LPPL maintenance status `author-maintained'.
+%
+% The Current Maintainer of this work is Ulrich Diez.
+%
+% This Work consists of the files labelcas.dtx, labelcas.ins, README and
+% the derived files labelcas.sty and labelcas.pdf.
+%
 % \fi
 %
 % \iffalse
-%<labelcas>\NeedsTeXFormat{LaTeX2e}[1999/12/01]
+%<labelcas>\NeedsTeXFormat{LaTeX2e}
 %<labelcas>\ProvidesPackage{labelcas}
-%<labelcas>   [2006/04/27 v1.07 check label-existence and fork accordingly]
-%
+%<labelcas>   [2006/08/14 v1.12 check label-existence and fork accordingly]
 %<*driver>
 \documentclass[a4paper]{ltxdoc}
+\makeatletter
+\@ifdefinable\saved@wrindex{\global\let\saved@wrindex\@wrindex}
+\makeatother
+\usepackage[colorlinks, linkcolor=linkcolour, urlcolor=linkcolour
+%, draft%
+]{hyperref}
+\usepackage{color}
+\definecolor{linkcolour}{cmyk}{0.64,0,0.95,0.40}% <-Olive Green
 \usepackage[DefineLabelcase]{labelcas}
 \EnableCrossrefs
 \CodelineIndex
 \RecordChanges
 %\OnlyDescription
+\pagestyle{plain}%
+\setlength{\textheight}{52\baselineskip}
+\setlength{\topmargin}{\paperheight}
+\addtolength{\topmargin}{-\textheight}
+\setlength{\topmargin}{.5\topmargin}
+\addtolength{\topmargin}{-1in}
+\addtolength{\topmargin}{-\voffset}
+\addtolength{\topmargin}{-\headheight}
+\addtolength{\topmargin}{-\headsep}
+\setlength{\footskip}{\paperheight}
+\addtolength{\footskip}{-\textheight}
+\setlength{\footskip}{.15\footskip}
+\addtolength{\footskip}{\baselineskip}
+\makeatletter
+\@settopoint{\textheight}
+\@settopoint{\topmargin}
+\@settopoint{\footskip}
+\makeatother
 \begin{document}
   \DocInput{labelcas.dtx}
 \end{document}
 %</driver>
 % \fi
 %
-% \CheckSum{390}
+% \CheckSum{375}
 %
 % \CharacterTable
 %  {Upper-case    \A\B\C\D\E\F\G\H\I\J\K\L\M\N\O\P\Q\R\S\T\U\V\W\X\Y\Z
@@ -50,24 +82,123 @@
 %   Grave accent  \`     Left brace    \{     Vertical bar  \|
 %   Right brace   \}     Tilde         \~}
 %
+% \iffalse meta-comment
+% !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+% !                                                                      !
+% !  !!!  In this TeX-input-file henceforth alignment-tab "&" is    !!!  !
+% !  !!!  used for commenting- and line-breaking-purposes.          !!!  !
+% !                                                                      !
+% !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+% \fi
 % \catcode`\&=14\relax
-% &&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
-% &                                                                      &
-% &  !!!!!  Henceforth alignment-tab is used for commenting- and  !!!!!  &
-% &  !!!!!  line-breaking-purposes in the documentation-parts.    !!!!!  &
-% &                                                                      &
-% &&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
-%
-% & Put an 's' behind the word 'italic' in the index-prologue:
+%
 % \makeatletter
+%
+% & increase \MacroIndent so that 3-digit line-numbers don't stick out:
+%
+% \setlength\MacroIndent{1.5\MacroIndent}&
+%
+% & Add toc-entries and bookmarks to change-history and index, also put
+% & an 's' behind the word 'italic' in the index-prologue:
+%
+% \renewcommand\tableofcontents{&
+%   \section*{&
+%     \phantomsection
+%     \Hy@raisedlink{\pdfbookmark[1]{\contentsname}{section.0}}&
+%     \contentsname
+%     \@mkboth{\MakeUppercase\contentsname}&
+%             {\MakeUppercase\contentsname}&
+%   }&
+%   \@starttoc{toc}&
+% }&
+%
+% \renewcommand*\glossary@prologue{&
+%   \section*{&
+%     \phantomsection
+%     \customaddcontentsline{toc}&
+%                           {section}&
+%                           {Change History}&
+%                           {\protect\numberline{\protect\null}}&
+%     Change History&
+%     \@mkboth{\MakeUppercase{Change History}}&
+%             {\MakeUppercase{Change History}}&
+%   }&
+% }&
+%
 % \renewcommand*\index@prologue{&
-%   \section*{Index}\markboth{Index}{Index}Numbers written in italics
-%   refer to the page where the corresponding entry is described; numbers
-%   underlined refer to the \ifcodeline@index code line of the \fi
-%   definition; numbers in roman refer to the \ifcodeline@index code
-%   lines \else pages \fi where the entry is used.&
+%   \section*{&
+%     \phantomsection
+%     \customaddcontentsline{toc}&
+%                           {section}&
+%                           {Index}&
+%                           {\protect\numberline{\protect\null}}&
+%     Index&
+%     \@mkboth{\MakeUppercase{Index}}&
+%             {\MakeUppercase{Index}}&
+%   }&
+%   Numbers written in italics refer to the page where the
+%   corresponding entry is described; numbers underlined refer to the
+%   \ifcodeline@index code line of the \fi definition; numbers in roman
+%   refer to the \ifcodeline@index code lines \else pages \fi where the
+%   entry is used.&
+% }&
+%
+% \newcommand*\customaddcontentsline[4]{&
+%   \begingroup
+%   \let\label\@gobble
+%   \let\textlatin\@firstofone
+%   \ifx\@currentHref\@empty
+%     \Hy@Warning{No destination for bookmark of
+%                 \string\customaddcontentsline,&
+%                 \MessageBreak destination is added}&
+%     \phantomsection
+%   \fi
+%   \expandafter\ifx csname toclevel@#2\endcsname\relax
+%     \begingroup
+%       \def\Hy@tempa{#1}&
+%       \ifx\Hy@tempa\Hy@bookmarkstype
+%         \Hy@WarningNoLine{bookmark level for unknown #2 defaults to 0}&
+%       \else
+%         \Hy@Info{bookmark level for unknown #2 defaults to 0}&
+%       \fi
+%     \endgroup
+%     \expandafter\gdef\csname toclevel@#2\endcsname{0}&
+%   \fi
+%   \edef\Hy@toclevel{\csname toclevel@#2\endcsname}&
+%   \Hy@writebookmark{\csname the#2\endcsname}{#4#3}{\@currentHref}&
+%                    {\Hy@toclevel}{#1}&
+%   \ifHy@verbose
+%     \typeout{&
+%       pdftex: bookmark at \the\inputlineno:
+%       {\csname the#2\endcsname}{#4#3}{\@currentHref}{\Hy@toclevel}{#1}&
+%     }&
+%   \fi
+%   \addtocontents{#1}&
+%                 {\protect
+%                  \customcontentsline{#2}{#3}&
+%                  {\thepage}{\@currentHref}{#4}}&
+%   \endgroup
+% }&
+%
+% \newcommand*\customcontentsline[5]{&
+%   \ifx\\#4\\
+%     \csname l@#1\endcsname{#5#2}{#3}&
+%   \else
+%     \ifHy@linktocpage
+%       \csname l@#1\endcsname{{#5#2}}&
+%                             {\hyper@linkstart
+%                              {link}{#4}{#3}&
+%                              \hyper@linkend
+%                             }&
+%     \else
+%       \csname l@#1\endcsname{#5&
+%                              \hyper@linkstart
+%                              {link}{#4}{#2}&
+%                              \hyper@linkend
+%                             }{#3}&
+%     \fi
+%  \fi
 % }&
-% \makeatother
 %
 % & Write the word '\if' from the tocs:
 % \DeclareRobustCommand\Outif{\string\if}&
@@ -86,8 +217,24 @@
 %   \MacroFont\string #1&
 % }&
 %
-% & Write macro-names with <prefix> into the index:
-% \makeatletter
+% & Write index-entries in main-text:
+% \newcommand*\MacroIndexEntry[1]{&
+%   \@bsphack
+%   {&
+%     \let\special@index\index
+%     \ifx\pref\empty
+%       \SpecialIndex@{#1}{\encapchar usage}&
+%     \else
+%        \expandafter\SpecialIndex@
+%        \expandafter{&
+%      \expandafter<&
+%        \pref!>#1}{\encapchar usage}&
+%     \fi
+%   }&
+%   \@esphack
+% }&
+%
+% & Write macro-names with <prefix> into the index in macro-description:
 % \renewcommand*\SpecialMainIndex[1]{&
 %   \@bsphack
 %   \ifx\pref\empty
@@ -101,6 +248,29 @@
 %   \@esphack
 % }&
 %
+% & Write macro-names with <prefix> into the index in implementation:
+% \newcommand*\InsertPrefixedUsageToIndex[2]{&
+%   \@bsphack
+%   {&
+%     \expandafter\edef
+%     \expandafter\@tempa
+%     \expandafter{&
+%     \expandafter\string
+%     \csname<#1!>#2\endcsname}&
+%     \codeline@indextrue
+%     \let\special@index\codeline@wrindex
+%     \expandafter\SpecialIndex\expandafter{\@tempa}&
+%   }&
+%   \@esphack
+% }&
+%
+% & Compensate gap between macrocode-environments if no visible/
+% & printable material is between:
+% \newcommand*\macrocodeitemsep{0pt}&
+% \newcommand*\compensategap{&
+%   \ifvmode\unskip\vskip\macrocodeitemsep\fi\@inlabeltrue
+% }&
+%
 % & Write macro-names with <prefix> into change-history:
 % \newcommand*\Patchsavedatmacroname{&
 %   \ifx\pref\empty
@@ -112,49 +282,224 @@
 %     \csname<\pref!>\saved@macroname\endcsname}&
 %   \fi
 % }&
-% \makeatother
 %
-% & The <prefix>:
+% & The <prefix>-placeholder:
 % \newcommand*\pref{}&
-% \let\pref\empty
 %
-% \changes{v1.0}{2006/01/04}{Initial public release}
-% \changes{v1.01}{2006/01/06}{Fixed documentation-inaccuracies}
-% \changes{v1.02}{2006/01/29}{Fixed documentation-inaccuracies}
-% \changes{v1.04}{2006/03/04}{Fixed documentation-inaccuracies}
-% \changes{v1.05}{2006/03/09}{Fixed documentation-inaccuracies}
-% \changes{v1.07}{2006/04/27}{Fixed documentation-inaccuracies}
+% & Type stuff between angles in meta-format in index and change-history
+% & (\anglechange patches \dospecials which is called by \verb to make
+% &  angle active also in verbatim-mode):
+% {&
+%   \catcode`\<=13\relax
+%   \catcode`\>=12\relax
+%   \gdef\anglechange{&
+%     \let\olddospecials\dospecials
+%     \def\dospecials{&
+%       \olddospecials
+%       \catcode`\>=12
+%       \catcode`\<=13
+%       \def<####1>{\textrm{\meta{####1}}}&
+%     }&
+%   }&
+% }&
 %
-% \GetFileInfo{labelcas.sty}
+% & create document-title-date from package-filedate
+% \newcommand*\filedatetodate{%
+%   \expandafter\@filedatetodate\filedate\@nil
+% }%
+% \@ifdefinable\@filedatetodate{&
+%   \def\@filedatetodate#1/#2/#3\@nil{&
+%     {&
+%       \edef\@tempa{%
+%         \ifcase#2\or January\or February\or March\or April\or May&
+%                \or June\or July\or August\or September\or October&
+%                \or November\or December&
+%         \fi
+%         \space\number#3, \number#1&
+%       }&
+%     \expandafter}\expandafter\date\expandafter{\@tempa}&
+%   }&
+% }&
 %
-% \DoNotIndex{\@empty,\@firstoftwo,\@ifdefinable,\@secondoftwo,\@gobble,&
-%             \@nil,\@sptoken,\@temptokena,\toks@,\begingroup,\csname,&
-%             \DeclareOption,\DeclareRobustCommand,\def,\edef,\else,&
-%             \endcsname,\endgroup,\expandafter,\fi,\futurelet,\global,&
-%             \ifx,\let,\long,\newcommand,\ProcessOptions,\relax,\the}&
+% & hyperref-support for index etc:
 %
-% \title{&
-%   The \textsf{labelcas} package&
-%   \thanks{This document corresponds to \textsf{labelcas}~\fileversion,
-%           dated \filedate.}&
-% }
-% \author{Ulrich Diez\\ \texttt{ulrich.diez@alumni.uni-tuebingen.de}}
+% \renewcommand*\SpecialIndex[1]{&
+%   \@bsphack
+%   \special@index{&
+%     \expandafter\@gobble
+%     \string #1\actualchar
+%     \string\verb\quotechar*\verbatimchar\string#1\verbatimchar
+%     \encapchar sourceusage&
+%   }&
+%   \@esphack
+% }&
+%
+% \newcommand*\@DefineIndexEntryFormat[4]{&
+%   \expandafter\gdef\csname #4\endcsname##1{&
+%     \csname @#4\endcsname##1,\@nnil,\@nnil,&
+%   }&
+%   \toks@{#1{#2{#3}}}&
+%   \expandafter\xdef\csname @#4\endcsname##1,##2,{&
+%     \noexpand\ifx\noexpand\@nnil##1&
+%       \noexpand\expandafter\noexpand\@gobble
+%     \noexpand\else
+%       \noexpand\expandafter\noexpand\@firstofone
+%     \noexpand\fi
+%     {&
+%       \noexpand\ifx\noexpand\@nnil##2&
+%         \noexpand\expandafter\noexpand\@firstoftwo
+%       \noexpand\else
+%         \noexpand\expandafter\noexpand\@secondoftwo
+%       \noexpand\fi
+%       {&
+%         \noexpand\bgroup
+%         \the\toks@
+%         \noexpand\lc@remleadspace,##1, ,,&
+%         \csname @#4\endcsname##2,&
+%       }&
+%       {&
+%         \noexpand\bgroup
+%         \the\toks@
+%         \noexpand\lc@remleadspace,##1, ,,&
+%         , \csname @#4\endcsname##2,&
+%       }&
+%     }&
+%   }&
+% }&
+%
+% \newcommand*\DefineIndexEntryFormat[3]{&
+%    {&
+%      \toks@{{\def\@tempa,##1,}}&
+%      \edef\@tempa{\the\toks@}&
+%      \toks@{{\egroup\link@sanitize##1-\@nil{#2}}}&
+%      \edef\@tempb{\the\toks@}&
+%      \expandafter\expandafter
+%      \expandafter            \@DefineIndexEntryFormat
+%      \expandafter\@tempa
+%      \@tempb{#3}{#1}&
+%    }&
+% }&
+%
+% \@ifdefinable\link@sanitize{&
+%   \def\link@sanitize#1-#2\@nil#3{\link@@sanitize#1,\@nil{#3}}&
+% }&
+% \@ifdefinable\link@@sanitize{&
+%   \def\link@@sanitize#1,#2\@nil#3{\hyperlink{#3.#1}}&
+% }&
+% \global\let\@wrindex\saved@wrindex
+%
+% \DefineIndexEntryFormat{sourceusage}{line}{#1}&
+% \DefineIndexEntryFormat{main}{line}{\underline{#1}}&
+% \DefineIndexEntryFormat{usage}{page}{\textit{#1}}&
+% \DefineIndexEntryFormat{glossaryusage}{page}{#1}&
+%
+% \let\oldtheCodelineNo\theCodelineNo
+% \renewcommand*\theCodelineNo{&
+%   \Hy@raisedlink{&
+%     \hypertarget{line.\arabic{CodelineNo}}{}&
+%   }&
+%   \oldtheCodelineNo
+% }&
+%
+% \renewcommand*\changes@[3]{&
+%   \protected@edef\@tempa{&
+%     \noexpand\glossary{&
+%       #1\levelchar
+%       \ifx\saved@macroname\@empty
+%         \space\actualchar\generalname
+%       \else
+%         \expandafter\@gobble\saved@macroname
+%         \actualchar\string\verb\quotechar*\verbatimchar
+%         \saved@macroname\verbatimchar
+%       \fi
+%       :\levelchar #3&
+%       \noexpand\encapchar glossaryusage&
+%     }&
+%   }&
+%   \@tempa\endgroup
+%   \@esphack
+% }&
+%
+% \let\oldtheindex\theindex
+% \def\theindex{&
+%   \oldtheindex
+%   \let\oldbfseries\bfseries
+%   \def\bfseries\hfil##1\hfil{&
+%     \phantomsection
+%     \oldbfseries\hfil##1\hfil
+%     \Hy@raisedlink{\pdfbookmark[2]{##1}{index.##1}}&
+%   }&
+% }&
+%
+% & suppress page-number of change-history-item:
+% \@ifdefinable\suppresspage{&
+%   \DeclareRobustCommand\suppresspage[3]{\efill}%
+% }&
+%
+% & \nameref without hyperlink (to be used within \hyperref etc):
+% \@ifdefinable\nolinknameref{&
+%   \DeclareRobustCommand*\nolinknameref[1]{&
+%     \@safe@activestrue
+%     \expandafter\real@setref
+%     \csname r@#1\endcsname\@thirdoffive{#1}&
+%     \@safe@activesfalse
+%   }&
+% }&
+%
+% & end of hyperref-support-section
+%
+% \makeatother
 %
+% \changes{v1.0}{2006/01/04}%
+%         {Initial public release.\suppresspage}
+% \changes{v1.01}{2006/01/06}%
+%         {Fixed documentation-inaccuracies.\suppresspage}
+% \changes{v1.02}{2006/01/29}%
+%         {Fixed documentation-inaccuracies.\suppresspage}
+% \changes{v1.04, v1.05}{2006/03/04 2006/03/09}%
+%         {Fixed documentation-inaccuracies.\suppresspage}
+% \changes{v1.08}{2006/07/10}%
+%         {DefineLabelcase-option declared within group for
+%          \textsf{\mbox{hyperref}}-compatibility.\suppresspage}
+% \changes{v1.09}{2006/07/16}{Hyperlinks in documentation.\suppresspage}
+% \changes{v1.12}{2006/08/14}%
+%         {Fixed documentation-inaccuracies.\suppresspage}
+% \DoNotIndex{\@empty,\@firstofone,\@firstoftwo,\@gobble,\@ifdefinable,&
+%             \@nil,\@secondoftwo,\@sptoken,\@temptokena,\toks@,&
+%             \begingroup,\csname,\DeclareOption,\DeclareRobustCommand,&
+%             \def,\edef,\else,\endcsname,\endgroup,\expandafter,\fi,&
+%             \futurelet,\global,\ifx,\let,\long,\newcommand,&
+%             \ProcessOptions,\relax,\the}&
+%
+% \GetFileInfo{labelcas.sty}
+% \filedatetodate
+% \title{&
+%   The \textsf{\mbox{labelcas}} package&
+%   \thanks{&
+%     \vtop{\noindent This document corresponds to
+%       \mbox{\textsf{labelcas}~\fileversion}, dated \filedate.\newline
+%       Usage and distribution under \textsf{\mbox{LPPL}}-conditions. See
+%       \hyperref[sec6]{\emph{\ref*{sec6}~\nolinknameref{sec6}}} for more
+%       details.&
+%     }&
+%   }&
+% }&
+% \author{Ulrich Diez}&
 % \maketitle
 %
 % \begin{abstract}
-% \noindent This {\LaTeXe}-package provides macros |\eachlabelcase| and
-% |\lotlabelcase| as a means of forking dependent on whether specific
+% \noindent This \LaTeXe-package provides macros |\eachlabelcase| and
+% |\lotlabelcase| as a means of forking depending on whether specific
 % labels are defined in the current document.
 % \end{abstract}
 %
 % \tableofcontents
-% \newpage
 %
+% \newpage
 % \section{Introduction}\label{sec1}
 %
-% The package's name |labelcas| is an eight-letter abbreviation for the
-% phrases ``label'' and ``case''.
+% The package's name \textsf{\mbox{labelcas}} is an eight-letter
+% abbreviation for the phrases ``label'' and ``case''.
 %
 % There are rare occasions where the author of a document would like to
 % have detected whether specific labels are defined/in use within the
@@ -162,34 +507,36 @@
 % This package provides the macros |\eachlabelcase| and |\lotlabelcase|
 % which might facilitate this task.
 %
-% A mechanism for branching dependent on the existence of labels might be
-% handy, e.g., when extracting a ``snippet'' from a large document: In
-% case that within the snippet a label/document-part is referenced which
-% is outside the snippet's scope, ugly |`?'| will intersperse the
-% resulting output-file and warnings about undefined references will
-% accumulate within the log-file.
+% A mechanism for branching depending on whether referencing-labels exist,
+% might be handy, e.g., when extracting a ``snippet'' from a large
+% document: In case that within the snippet a label/document-part is
+% referenced which is outside the snippet's scope, ugly `{\makeatletter
+% \nfss@text{\reset@font\bfseries??}}' will intersperse the resulting
+% output-file and warnings about undefined references will accumulate
+% within the log-file.
 %
 % By testing the label's existence, you can catch up the error and either
 % change the way of referencing (e.g., refer to the snippet's bibliography
 % instead) or completely suppress referencing for those cases. (By using
-% \emph{David Carlisle's} |xr|- or |xr-hyper|-package, you can make
-% available labels of the large document to the snippet also. A label not
-% defined in the snippet can be picked up from the large document\dots)
+% \textsf{\mbox{David Carlisle's}} \textsf{xr}- or
+% \textsf{\mbox{xr-hyper}}-package, you can make available labels of the
+% large document to the snippet also. A label not defined in the snippet
+% can be picked up from the large document\dots)
 %
 % \subsection{Space notation}
 %
 % When listing some piece of \TeX-source-code, you may need to visibly
 % distinguish word-separation from single space-characters. The symbol
 % \verb*+ + is chosen whenever it is important to give a visible
-% impression of a space-character in a (possibly \textsl{ASCII}-encoded)
-% \TeX-input-file. {\verb*+ +}\nobreak\(_{x}\) does not represent a
-% character of an input-file but a token which occurs after tokenizing the
-% input. The token's category-code is \(x\), the character-number usually
-% is \(32\), which is the \textsl{ASCII}-number of the space-character.
+% impression of a space-character in a (possibly ASCII-encoded) \TeX-&
+% input-file. {\verb*+ +}\nobreak\(_{x}\) does not represent a character
+% of an input-file but a token which occurs after tokenizing the input.
+% The token's category-code is \(x\), the character-number usually is
+% \(32\), which is the ASCII-number of the space-character.
 %
 % \section{Package-loading}\label{sec2}
 %
-% The package is loaded within in the document-preamble by |\usepackage|.
+% The package is to be loaded in the document-preamble by |\usepackage|.
 % \medskip
 %
 % |\usepackage{labelcas}|~~~or
@@ -197,10 +544,10 @@
 % |\usepackage[DefineLabelcase]{labelcas}|.
 % \medskip
 %
-% The only package-option is |DefineLabelcase|. It's usage is described in
-% section~\ref{sec4} ``Package option---Different spaces, different
-% separators''.
+% The only package-option is |DefineLabelcase|. Its usage is described in
+% section~\hyperref[sec4]{\emph{\ref*{sec4}~\nolinknameref{sec4}}}.
 %
+% \newpage
 % \section{The macros}\label{sec3}
 %
 % \subsection{Basic usage}\label{sec3-1}
@@ -261,7 +608,7 @@
 %   \vtop{&
 %     \noindent
 %     1. all labels are defined,\\
-%     2. none of the labels are defined,\\
+%     2. none of the labels is defined,\\
 %     3. some labels are defined/some are undefined,\\
 %     4. the list does not contain any label.&
 %   }&
@@ -301,19 +648,19 @@
 % \item Testing for labels which are \textbf{not definable} according to
 %       the syntax-rules will lead to \TeX-internal error-messages and
 %       deliver unexpected/unwanted results!
-% \item ``Label- and referencing management'' in {\LaTeXe} is done by
+% \item ``Label- and referencing management'' in \LaTeXe\ is done by
 %       means of the aux-file, the content of  which is gathered and
-%       corrected during several {\LaTeX}-runs, and which does not yet
+%       corrected during several \LaTeX-runs, and which does not yet
 %       exist in the first run. So, in the first run, all labels from the
 %       current document are undefined---when applying |\...labelcase| to
 %       labels of the current document, it will in any case take at least
-%       two {\LaTeX}-runs until everything matches out correctly.
+%       two \LaTeX-runs until everything matches out correctly.
 % \item It was mentioned that, in the macros |\eachlabelcase| and
 %       |\lotlabelcase|, space-tokens which surround the argument-&
 %       triplets/label-names, will be gobbled. There are situations where
 %       the category-code of the input-character \verb*+ + is changed---&
 %       e.g., due to a preceding |\obeyspaces| or when using some package
-%       where the encoding of \TeX-input-files it is played around with.
+%       where the encoding of \TeX-input-files is played around with.
 %       In such cases, the input-character \verb*+ + does not get
 %       tokenized as space-token any more but as some \verb*+ +\nobreak&
 %       \(_{\neq10}\)-token, so that in such cases, triplets/labels in
@@ -324,29 +671,30 @@
 %       set of these macros where the appropriate token, e.g.,
 %       \verb*+ +\nobreak\(_{13}\)~(active-space) instead of
 %       \verb*+ +\nobreak\(_{10}\)~(space-token), is taken into account.
-%       How this is done, is described in section~\ref{sec4} ``Package
-%       option---Different spaces, different separators''.
+%       How this is done, is described in
+%       section~\hyperref[sec4]{\emph{\ref*{sec4}~\nolinknameref{sec4}}}.
 % \item In the very unlikely case{\makeatletter\footnote{The case is very
-%       unlikely because it is a convention in {\LaTeXe} to leave
+%       unlikely because it is a convention in \LaTeXe\ to leave
 %       {\verbatim@font\string\@nil} undefined. If labels are defined in
 %       terms of macros, these macros are to expand to something that can
 %       be evaluated by a {\verbatim@font\string\csname\dots\string&
 %       \endcsname}-construct. If they are to expand to something, they
 %       must be defined\dots}} that you wish |\lotlabelcase| (or variants
-%       thereof\thinspace\footnote{\(_{^\rightarrow}\)section~\ref{sec4}~&
-%       ``Package option---Different spaces, different separators''.})&
-%       \addtocounter{footnote}{-1} to scan for the label |\@nil|, |\@nil|
+%       thereof\thinspace\footnote{\(\rightarrow\)&
+%       \hyperref[sec4]{\emph{\ref*{sec4}~\nolinknameref{sec4}}}.})&
+%       to scan for the label |\@nil|, |\@nil|
 %       has to be put in  braces and/or has to be surrounded by space-&
 %       tokens. This is because the internal iterator-macros terminate on
 %       |\@nil|.
 % \item Internally token-registers are used and temporary-macros get
 %       defined. So the macros |\eachlabelcase| and |\lotlabelcase| (and
-%       all variants\footnotemark) are not ``full-expandable''. This
-%       means, |\edef| or |\write| or control-sequences the like which
-%       evaluate their arguments fully, cannot be applied to them.&
-%       \footnote{In any case it cannot be ensured that all arguments
-%       supplied are ``full-expandable''\dots} Therefore they are declared
-%       robust.
+%       all variants&
+%       \addtocounter{footnote}{-1}\addtocounter{Hfootnote}{-1}&
+%       \footnotemark) are not ``full-expandable''. This means, |\edef| or
+%       |\write| or control-sequences the like which evaluate their
+%       arguments fully, cannot be applied to them.\footnote{In any case it
+%       cannot be ensured that all arguments supplied are
+%       ``full-expandable''\dots} Therefore they are declared robust.
 % \item |\lotlabelcase| and |\eachlabelcase| can be nested. Inner
 %       instances will be gathered into the action-queues of outer
 %       instances.
@@ -365,13 +713,17 @@
 %       |\expandafter\renewcommand\expandafter\macro\expandafter{\macro}|&
 %       .\\
 %       But think about it. These macros don't take arguments!
+% \item If you use the arguments of |\lotlabelcase|/|\eachlabelcase| for
+%       defining other referencing-labels, things can easily get very
+%       confusing\dots
 % \end{itemize}
 %
+% \newpage
 % \subsubsection{Examples}\label{sec3-1-2}
 % \smallskip
 %
-% Within this document, only the labels |sec1|, |sec2|, |sec3| and |sec4|
-% are defined.\smallskip
+% Within this document, only the labels |sec1|, |sec2|, |sec3|, |sec4|,
+% |sec5| and |sec6| are defined.\bigskip
 %
 % \noindent
 % \begin{minipage}{\linewidth}
@@ -496,8 +848,18 @@
 %   }&
 % \end{minipage}
 %
-% \subsection{Advanced usage (brace-matching,{\ttfamily\selectfont\Outif&
-% \dots\thinspace}, defining macros)}
+% \newpage
+% \subsection{&
+%   \texorpdfstring
+%   {&
+%     Advanced usage (brace-matching, {\ttfamily\selectfont\Outif&
+%     \dots\thinspace}, defining macros)&
+%   }&
+%   {&
+%     Advanced usage (brace-matching, {\textbackslash if\dots}, defining
+%     macros)&
+%   }&
+% }
 %
 % \begin{itemize}
 %   \item Braces within the arguments/comma-separated items must be
@@ -538,7 +900,7 @@
 %                           {UNDEF}  {a is a\else}  {a is b\else} ,
 %                           {sec3} {a is not a\fi.}{a is not b\fi.},   }&
 %         \end{minipage}
-%         \bigskip
+%         \medskip
 %
 %         When trying such obscure things, you must be aware that brace/&
 %         group-nesting is independent from conditional-nesting! You might
@@ -590,7 +952,12 @@
 %         \medskip
 % \end{itemize}
 %
-% \section{Package option---Different spaces, different se\-pa\-ra\-tors}&
+% \newpage
+% \section{&
+%   \texorpdfstring
+%   {Package option---Different spaces, different se\-pa\-ra\-tors}&
+%   {Package option\textemdash Different spaces, different separators}&
+% }&
 % \label{sec4}
 %
 % Above was said that space-tokens (\verb*+ +\nobreak\(_{10}\)-tokens)
@@ -606,7 +973,7 @@
 % macros with \verb*+ +\nobreak\(_{10}\)-token-delimited arguments.
 %
 % In normal circumstances, \verb*+ +\nobreak-characters in the input-file
-% which trail a control-word do not get tokenized when {\TeX} ``reads'' an
+% which trail a control-word do not get tokenized when \TeX\ ``reads'' an
 % input. So it's kind of a problem to get space-tokens right behind the
 % name of a control-word, e.g., as first items of the parameter-text when
 % defining macros. A space within braces \verb*+{ }+ does get tokenized as
@@ -617,24 +984,24 @@
 % word which is about to be defined. (Henceforth the term \emph{definer&
 % -macro} is applied in order to call special attention to the fact that
 % defining other control-sequences is the only purpose of such a macro.)
-% A \verb*+ + in the definer-macro's argument gets tokenized while this
+% A \verb*+ + as the definer-macro's argument gets tokenized while this
 % argument is used as the first item of the desired control-word's
 % parameter-text \(\rightarrow\) the first item of the desired control-&
 % word's parameter-text will be a space-token.
 %
 % \DescribeMacro{\DefineLabelcase}
-% In case of the |labelcas|-package, the problem of getting space-tokens
-% as delimiters right behind control-words, is also solved by implementing
-% such a definer-macro. It is called |\DefineLabelcase| and used for
-% defining both the user-level-macros |\eachlabelcase| and |\lotlabelcase|
-% and the internal-macros |\lc@iterate|, |\lc@remtrailspace| and
-% |\lc@remleadspace|. Usually it is discarded/destroyed when defining
-% these macros has taken place. But you can specify the package-option
-% |DefineLabelcase|. When you do so, |\DefineLabelcase| does not get
-% destroyed, and you can use it for creating ``new variants'' of
-% |\eachlabelcase| and |\lotlabelcase| plus internals while specifying
-% proper space-tokens and separators. |\DefineLabelcase| takes four
-% mandatory arguments:
+% In case of the \textsf{\mbox{labelcas}}-package, the problem of getting
+% space-tokens as delimiters right behind control-words, is also solved by
+% implementing such a definer-macro. It is called |\DefineLabelcase| and
+% used for defining both the user-level-macros |\eachlabelcase| and
+% |\lotlabelcase| and the internal-macros |\lc@iterate|,
+% |\lc@remtrailspace| and |\lc@remleadspace|.
+% Usually it is discarded/destroyed when defining these macros has taken
+% place. But you can specify the package-option |DefineLabelcase|. When
+% you do so, |\DefineLabelcase| does not get destroyed, and you can use it
+% for creating ``new variants'' of |\eachlabelcase| and |\lotlabelcase|
+% plus internals while specifying proper space-tokens and separators.
+% |\DefineLabelcase| takes four mandatory arguments:
 % \bigskip
 %
 % \noindent
@@ -644,26 +1011,30 @@
 % \begin{description}
 % \item[\textnormal{\meta{space}}] specifies the argument-surrounding
 %      token that is to be removed. Usually surrounding space-tokens
-%      shall be discarded. Default:~\verb*+ +\nobreak\(_{10}\)~(space).
+%      shall be discarded. Usually:~\verb*+ +\nobreak\(_{10}\)~(space).
 % \item[\textnormal{\meta{delimiter}}] specifies the delimiter/separator.
 %      Usually the argument-triplets or label-lists are comma-separated.
-%      Default:~\verb*+,+\nobreak\(_{12}\)~(comma).
+%      Usually:~\verb*+,+\nobreak\(_{12}\)~(comma).
 % \item[\textnormal{\meta{prefix}}] specifies the macro-name-prefix. You
 %      cannot assign the same name at the same time to different
 %      control-sequences. Therefore, when creating new variants of
 %      |\eachlabelcase| and |\lotlabelcase|, you have to specify a prefix
 %      which gets inserted at the beginning of the macro-name. E.g.,
 %      specifying the prefix |FOO| leads to defining the macro-set:\\
-%      |\FOOeachlabelcase|, |\FOOlotlabelcase| (user-macros) and\\
-%      |\FOOlc@iterate|, |\FOOlc@remtrailspace|, |\FOOlc@remleadspace|
+%      |\FOOeachlabelcase|\MacroIndexEntry{\<prefix!>eachlabelcase},
+%      |\FOOlotlabelcase|\MacroIndexEntry{\<prefix!>lotlabelcase}
+%      (user-macros) and\\
+%      |\FOOlc@iterate|\MacroIndexEntry{\<prefix!>lc@iterate},
+%      |\FOOlc@remtrailspace|\MacroIndexEntry{\<prefix!>lc@remtrailspace},
+%      |\FOOlc@remleadspace|\MacroIndexEntry{\<prefix!>lc@remleadspace}
 %      (internal).\\
 %      The original versions are just called |\eachlabelcase|,
 %      |\lotlabelcase|, |\lc@iterate|\dots (without a prefix in the
-%      macro-name). Default:~(empty).
+%      macro-name). Usually:~(empty).
 % \item[\textnormal{\meta{global-indicator}:}] In case that this argument
 %      contains only the token |\global|, defining the new macro-set takes
 %      place in terms of |\global|. Otherwise the scope is restricted to
-%      the current grouping-level. Default:~\verb*+\global+.
+%      the current grouping-level. Usually:~\verb*+\global+.
 % \end{description}
 %
 % Don't try weird things like specifying the same token both for
@@ -673,7 +1044,7 @@
 % tokens which may be used for separating parameters from each other
 % within the parameter-text of a definition! Also please specify the
 % \meta{prefix} only in terms of letter-character-tokens! \textbf{There is
-% no error-checking implemented on these things!}
+% no extra error-checking implemented on these things!}
 % \bigskip
 %
 % \noindent
@@ -681,28 +1052,46 @@
 %   \noindent
 %   |\begingroup|\\
 %   |\obeyspaces|\\
-%   |\endlinechar=-1\relax|\\
-%   |\DefineLabelcase{ }{/}{SPACEOBEYED}{local}%|\\
-%   |\SPACEOBEYEDlotlabelcase[\test]{sec1/ sec2 /    UNDEFINED /sec3}%|\\
-%   |{All   labels   are   defined.}%|\\
-%   |{None   of   the   labels   is   defined.}%|\\
-%   |{Some   labels   are   defined,   some not.}%|\\
-%   |{The   list   is   empty.}%|\\
-%   |\global\let\test\test|\\
+%   |\endlinechar=-1\relax%|\\
+%   \verb*|\DefineLabelcase{ }{/}{SPACEOBEYED}{local}%|\\
+%   \verb*|\SPACEOBEYEDlotlabelcase[\test]{sec1/ sec2   /   UNDEF     /sec3}%|\\
+%   \verb*|{All   labels   are   defined.}%|\\
+%   \verb*|{None   of   the   labels   is   defined.}%|\\
+%   \verb*|{Some   labels   are   defined,   some not.}%|\\
+%   \verb*|{The   list   is   empty.}%|\\
+%   |\global\let\test\test%|\\
 %   |\endgroup|\medskip\\
 %   defines: |\test|:
 %\begingroup
 %\obeyspaces
-%\endlinechar=-1\relax
+%\endlinechar=-1\relax&
 %\DefineLabelcase{ }{/}{SPACEOBEYED}{local}&
-%\SPACEOBEYEDlotlabelcase[\test]{sec1/ sec2 /    UNDEFINED /sec3}&
+%\SPACEOBEYEDlotlabelcase[\test]{sec1/ sec2   /   UNDEF     /sec3}&
 %{All   labels   are   defined.}&
 %{None   of   the   labels   is   defined.}&
 %{Some   labels   are   defined,   some not.}&
 %{The   list   is   empty.}&
-%\global\let\test\test
+%\global\let\test\test&
 %\endgroup
-%   {\makeatletter\verbatim@font\meaning\test}&
+%   {&
+%     \makeatletter
+%     \def\spacereplace#1 #2\@nil{&
+%       #1&
+%       \def\@tempa{#2}&
+%       \ifx\@tempa\@empty
+%         \expandafter\@gobble
+%       \else
+%         \expandafter\@firstofone
+%       \fi
+%       {\char32\spacereplace#2\@nil}&
+%     }&
+%     \verbatim@font
+%     \expandafter\expandafter
+%     \expandafter\spacereplace
+%     \expandafter\meaning
+%     \expandafter\test
+%     \space\@nil
+%   }&
 %   \global\let\test\undefined
 % \end{minipage}
 % \bigskip
@@ -713,7 +1102,7 @@
 %   |\begingroup|\\
 %   |\endlinechar=-1\relax|\\
 %   |\DefineLabelcase{-}{/}{BAR}{local}%|\\
-%   |\BARlotlabelcase[\test]{sec1/-sec2-/--%|\\
+%   |\BARlotlabelcase[\test]{sec1/-sec2----/--%|\\
 %   |                              ---/sec3}%|\\
 %   |{All   labels   are   defined.}%|\\
 %   |{None   of   the   labels   is   defined.}%|\\
@@ -725,7 +1114,7 @@
 %   \begingroup
 %     \endlinechar=-1\relax
 %     \DefineLabelcase{-}{/}{BAR}{local}&
-%     \BARlotlabelcase[\test]{sec1/-sec2-/--&
+%     \BARlotlabelcase[\test]{sec1/-sec2----/--&
 %                                   ---/sec3}&
 %                            {All   labels   are   defined.}&
 %                            {None   of   the   labels   is   defined.}&
@@ -760,56 +1149,82 @@
 %   \endgroup
 % \end{minipage}
 %
-% \section{Thanks, Acknowledgements}
+% \newpage
+% \section{Thanks, Acknowledgements}\label{sec5}
 % \begin{itemize}
 % \item Many thanks to all who encouraged me in making the attempt of
 %       getting things in this package less error-prone.
 % \item Thanks to everybody who took the macro-writing challenges
-%       presented in the \textbf{INFO-\TeX}-`Around the bend'-department
-%       which was initiated back in the early 90's by Michael Downes and
-%       regularly took place under his guidance. His summaries of the
-%       solutions are archived and on-line available at
-%       |http://www.tug.org/tex-archive/info/aro-bend/|. The information
-%       therein helps a great deal in understanding {\TeX} in general and
-%       learning about basic problem solving strategies---e.g., the
-%       removal of leading- and trailing spaces from an (almost) arbitrary
-%       token-sequence (exercise.015/answer.015).
+%       presented in the \textsf{\mbox{INFO-\TeX}-`Around the bend'}-&
+%       department which was initiated back in the early 90's by
+%       \textsf{\mbox{Michael Downes}} and regularly took place under his
+%       guidance. His summaries of the solutions are archived and online
+%       available at \href{http://www.tug.org/tex-archive/info/aro-bend/}&
+%       {\textsf{http://www.tug.org/tex-archive/info/aro-bend/}}. The
+%       information therein helps a great deal in understanding \TeX\ in
+%       general and in learning about basic problem-solving-strategies---&
+%       e.g., the removal of leading- and trailing spaces from an (almost)
+%       arbitrary token-sequence (exercise.015/answer.015).
 % \item Thanks to everybody who provides valuable information at the
-%       {\TeX} news groups and mailing lists. I received great help
-%       especially at |comp.text.tex|, where my---often trivial---&
-%       questions were answered patiently again and again.
+%       \TeX-news-groups and mailing-lists. I received great help
+%       especially at \textsf{\mbox{comp.text.tex}}, where my---often
+%       trivial---questions were answered patiently again and again.
 % \item Thanks to the \LaTeX-package authors, not only for providing means
 %       of achieving special typesetting-goals, but also for hereby
-%       delivering informative programming-examples. |labelcas| actually
-%       was inspired by \emph{David Carlisle's} |xr-| and |xr-hyper|-&
-%       packages which make available the labels of other \LaTeX-documents
-%       to the current one.
+%       delivering informative programming-examples.
+%       \textsf{\mbox{labelcas}} actually was inspired by
+%       \textsf{\mbox{David Carlisle's}} \textsf{xr}- and
+%       \textsf{\mbox{xr-hyper}}-packages which make available the labels
+%       of other \LaTeX-documents to the current one.
 % \end{itemize}
 %
-% \section{Legal Notes}
+% \section{Legal Notes}\label{sec6}
+%
+% \textsf{\mbox{labelcas}}---Copyright (C) 2006 by \mbox{Ulrich Diez}
+% (\href{mailto:ulrich.diez@alumni.uni-tuebingen.de}&
+%       {\textsf{ulrich.diez@alumni.uni-tuebingen.de}})
+% \medskip
 %
-% |labelcas| is released under the {\LaTeX} Project Public Licence.
+% \textsf{\mbox{labelcas}} may be distributed and/or modified under the
+% conditions of the \textsf{\LaTeX\ Project Public Licence (LPPL)}, either
+% version 1.3 of this license or (at your option) any later version.&
+% \footnote{The latest version of this license is in
+% \href{http://www.latex-project.org/lppl.txt}&
+%      {\textsf{http://www.latex-project.org/lppl.txt}}
+% and version 1.3 or later is part of all distributions of \LaTeX\ version
+% 2003/12/01 or later.}
+% The author and Current Maintainer of this Work is \mbox{Ulrich Diez}.
+% This Work has the LPPL maintenance status `author-maintained' and
+% consists of the files \textsf{\mbox{labelcas.dtx}},
+% \textsf{\mbox{labelcas.ins}}, \textsf{\mbox{README}} and the derived
+% files \textsf{\mbox{labelcas.sty}} and \textsf{\mbox{labelcas.pdf}}.
 % \medskip
 %
-% Usage of the |labelcas|-package is at your own risk. There is no
-% warranty---neither for documentation nor for any other part of the
-% |labelcas|-package. If something breaks, you may keep the pieces.
+% Usage of the \textsf{\mbox{labelcas}}-package is at your own risk. There
+% is no warranty---neither for the documentation nor for any other part of
+% the \textsf{\mbox{labelcas}}-package. If something breaks, you usually
+% may keep the pieces.
 %
-% \StopEventually{\PrintChanges\PrintIndex}
+% \StopEventually{&
+%   \let\PrintChanges\relax
+%   \PrintIndex
+% }
 %
+% \newpage
 % \section{Implementation}
 %
 % \subsection{A note about removing leading and trailing spaces}
 %
 % The matter of removing trailing spaces from an (almost) arbitrary
-% token-sequence is elaborated in detail by Michael Downes, `Around the
-% Bend \#15, answers', a summary of internet-discussion which took place
-% under his guidance primarily at the \textbf{INFO-\TeX} list, but also in
-% usenet (|comp.text.tex|) and via private e-mail; December 1993. Online
-% archived at:\newline
-% |http://www.tug.org/tex-archive/info/aro-bend/answer.015|.
-%
-% One basic approach suggested therein is using {\TeX}'s scanning of
+% token-sequence is elaborated in detail by \textsf{\mbox{Michael Downes},
+% `Around the Bend \#15, answers'}, a summary of internet-discussion which
+% took place under his guidance primarily at the \textsf{\mbox{INFO-\TeX}
+% list}, but also at \textsf{\mbox{comp.text.tex}} (usenet) and via
+% private e-mail; December 1993. Online archived at
+% \href{http://www.tug.org/tex-archive/info/aro-bend/answer.015}&
+%      {\textsf{http://www.tug.org/tex-archive/info/aro-bend/answer.015}}.
+%
+% One basic approach suggested therein is using \TeX's scanning of
 % delimited parameters in order to detect and discard the ending space of
 % an argument:
 % \begin{quote}
@@ -821,17 +1236,17 @@
 %   have the requisite other member of the pair.
 %
 %   Next consider the possibility that the trailing space is absent:
-%   {\TeX} will keep on scanning ahead for the pair \meta{space}&
+%   \TeX\ will keep on scanning ahead for the pair \meta{space}&
 %   \meta{bizarre} until either it finds them or it decides to give up and
 %   signal a `Runaway argument?' error. So you must add a stop pair to
 %   catch the runaway argument possibility: a second instance of the
-%   bizarre token, preceded by a space. If {\TeX} doesn't find a match at
+%   bizarre token, preceded by a space. If \TeX\ doesn't find a match at
 %   the first bizarre token, it will at the second one.
 % \end{quote}
 %
 % (Look up the macros |\KV@@sp@def|, |\KV@@sp@b|, |\KV@@sp@c| and
-% |\KV@@sp@d| in \emph{David Carlisle's} |keyval|-package for an
-% interesting variation on this approach.)
+% |\KV@@sp@d| in \textsf{\mbox{David Carlisle's} \mbox{keyval}-package}
+% for an interesting variation on this approach.)
 % \medskip
 %
 % When scanning for parameters ~~~|##1|\meta{space}\meta{bizarre}|##2|&
@@ -852,17 +1267,17 @@
 %         |##2| is empty.
 % \end{enumerate}
 %
-% So forking can be implemented dependent on the emptiness of |##2|.
+% So forking can be implemented depending on the emptiness of |##2|.
 %
-% You can easily prevent the brace-removal in the first case, e.g. by
-% adding (and later removing) something in front of the \meta{stuff where
-% to remove trail-space}.
+% You can easily prevent the brace-removal in the first case, e.g., by
+% adding (and later removing) something (e.g., a space-token) in front of
+% the \meta{stuff where to remove trail-space}.
 %
 % You can choose \meta{B1}=\meta{bizarre}\meta{space}.
 % \medskip
 %
-% `Around the Bend \#15, answers' also presents a similar way for the
-% removal of leading spaces from an (almost) arbitrary token-sequence:
+% \textsf{`Around the Bend \#15, answers'} also presents a similar way for
+% the removal of leading spaces from an (almost) arbitrary token-sequence:
 % \begin{quote}
 %   The latter method is perhaps most straightforwardly done as a mirror-&
 %   image of the method for removing a trailing space: make the delimiter
@@ -872,10 +1287,10 @@
 % \end{quote}
 %
 % When scanning for parameters ~~~|##1|\meta{bizarre}\meta{space}|##2|&
-% \meta{bizarre}\meta{B2}~~~ the sequence:
+% \meta{B2}~~~ the sequence:
 % \\
 % \meta{bizarre}\meta{stuff where to remove lead-space}\meta{bizarre}&
-% \meta{space}\meta{bizarre}\meta{B2}&
+% \meta{space}\meta{B2}&
 % \\
 % , you can fork two cases:
 % \begin{enumerate}\parskip=0ex\relax
@@ -889,10 +1304,10 @@
 %         |##2| is empty.
 % \end{enumerate}
 %
-% Thus forking can be implemented dependent on the emptiness of either of
+% Thus forking can be implemented depending on the emptiness of either of
 % the two arguments.
 %
-% You can choose \meta{B2}=\meta{bizarre}.
+% You can choose \meta{B2}=\meta{bizarre}\meta{bizarre}.
 %
 % \subsection{Flow of work}
 %
@@ -907,10 +1322,12 @@
 %   \parskip=0ex\relax\itemsep=.25\baselineskip\relax
 % \item The list is passed as an argument to the user-macro.
 % \item The list is passed from the user-macro to
-%       |\|\meta{prefix}|lc@iterate| whereby a leading \meta{space} is
-%       added for brace-removal-protection.
-% \item |\|\meta{prefix}|lc@iterate| recursively iterates on the list-&
-%       items until the item \meta{space}|\@nil| occurs:&
+%       |\|\meta{prefix}|lc@iterate|\MacroIndexEntry{\<prefix!>lc@iterate}
+%       whereby a leading \meta{space} is added for brace-removal-&
+%       protection.
+% \item |\|\meta{prefix}|lc@iterate|\MacroIndexEntry{\<prefix!>lc@iterate}
+%       recursively iterates on the list-items until the item
+%      \meta{space}|\@nil| occurs:&
 % {\def\labelenumii{\theenumii)}&
 %  \settowidth\labelwidth{a)}&
 %  \leftmarginii=\labelwidth\relax
@@ -918,16 +1335,20 @@
 % \begin{enumerate}
 %   \parskip=0ex\relax\itemsep=0ex\relax
 %   \makeatletter\@topsep=0ex\relax\makeatother
-%   \item If the item
-%         (with leading \meta{space} stripped-off) is not empty, it will
-%         be passed to
-%   \item |\|\meta{prefix}|lc@remtrailspace|. Here trailing \meta{space}
-%         is removed recursively. Afterwards, it is passed by
-%         |\|\meta{prefix}|lc@remtrailspace| to
-%   \item |\|\meta{prefix}|lc@remleadspace| where leading \meta{space}
-%         (also the previously inserted one) is removed recursively. After
-%         that |\|\meta{prefix}|lc@remleadspace| passes the item to the
-%         macro
+%   \item The item will be passed to |\|\meta{prefix}|lc@remtrailspace|&
+%         \MacroIndexEntry{\<prefix!>lc@remtrailspace}. Here trailing
+%         \meta{space} is removed recursively. If after removing
+%         trailing-space the result is empty, you can conclude that
+%         everything (incl the previously inserted ``brace-removal-&
+%         protection-\meta{space}'' was removed as either the item was
+%         empty or consisted of a sequence of \meta{space}. If the
+%         result does not imply an empty item, it will be passed to
+%   \item |\|\meta{prefix}|lc@remleadspace|&
+%         \MacroIndexEntry{\<prefix!>lc@remleadspace} where leading
+%         \meta{space} (also the previously inserted one) is removed
+%         recursively. After that |\|\meta{prefix}|lc@remleadspace|&
+%         \MacroIndexEntry{\<prefix!>lc@remleadspace} passes the item to
+%         the macro
 %   \item |\@tempa| for further processing. |\@tempa| at this stage will
 %         be locally defined within the user-macro. |\@tempa| initiates
 %         the actual work which (hopefully!) results in adding the
@@ -935,18 +1356,21 @@
 %         |\@temptokena|.
 %   \item Before processing the next item in the next iteration-round, a
 %         leading \meta{space} for brace-removal-protection will be added
-%         in front of the remaining list by |\|\meta{prefix}|lc@iterate|.
+%         in front of the remaining list by |\|\meta{prefix}|lc@iterate|&
+%         \MacroIndexEntry{\<prefix!>lc@iterate}.
 % \end{enumerate}\unskip}&
 % \item After iterating the list within the user-macro, the routine
-%       |\lc@macrodefiner| will check for the user-macro's optional
-%       argument and, in case that it is present, modify the action-&
-%       queue-register, so that, when flushing it, a macro will be
-%       produced instead of queue-execution.
-% \item The final step within the user-macro is flushing the action-&
+%       |\lc@macrodefiner|\MacroIndexEntry{\lc@macrodefiner} will check
+%       for the user-macro's optional argument and, in case that it is
+%       present, modify the action-queue-register, so that, when
+%       ``flushing'' it, a macro will be produced instead of queue-&
+%       execution.
+% \item The final step within the user-macro is ``flushing'' the action-&
 %       queue-register.
 % \end{enumerate}
 % \end{sloppypar}
 %
+% \newpage
 % \subsection{Code}
 %
 % \begin{macro}{\DefineLabelcase}
@@ -977,36 +1401,39 @@
 %   be evaluated within that group, right after defining
 %   |\DefineLabelcase|. By the option |DefineLabelcase|,
 %   |\DefineLabelcase| can be ``globalized'' before closing the group:
-%    \begin{macrocode}
+% \iffalse
 %<*labelcas>
+% \fi
+%    \begin{macrocode}
+\begingroup
 \DeclareOption{DefineLabelcase}%
               {\global\let\DefineLabelcase\DefineLabelcase}%
-\begingroup
 \newcommand\DefineLabelcase[4]{%
 %    \end{macrocode}
 % \end{macro}
 % \def\pref{prefix}
 % \begin{macro}{lc@remtrailspace}
 % \Patchsavedatmacroname
-% \changes{v1.01}{2006/01/06}{Let \meta{B1}\ChgEq\meta{bizarre}\nobreak
-% \meta{space}}
-% \changes{v1.03}{2006/02/21}{Chan\-ged forking-mechanism from
-%   token-register to \string\verb+\string\@firstoftwo+/\empty
-%   \string\verb+\string\@secondoftwo+}
-% \changes{v1.06}{2006/04/20}{Use \string\verb*+\string\@ifdefinable+
-%   instead of \string\verb*+\string\newcommand+}
+% \changes{v1.01}{2006/01/06}{\meta{B1}\ChgEq\meta{bizarre}\nobreak
+%   \meta{space}.}
+% \changes{v1.03}{2006/02/21}{Chan\-ged forking-mechanism to \string
+%   \verb+\string\@firstoftwo+/\string\verb+\string\@secondoftwo+.}
+% \changes{v1.06}{2006/04/20}{\string\verb*+\string\@ifdefinable+ instead
+%   of \string\verb*+\string\newcommand+.}
+% \changes{v1.10}{2006/07/21}{Empty-argument-check added.}
 %   It is assured that \meta{delimiter} does not occur in the top-level of
 %   the \meta{stuff where to remove trail-space}, for \meta{delimiter} is
 %   used in the list for separating the single items of \meta{stuff where
 %   to remove trail-space} from each other. Therefore you can choose
-%   \meta{bizarre}=\meta{delimiter} and \meta{B1}=\meta{delimiter}&
-%   \meta{space}:
+%   \meta{bizarre}=\meta{delimiter} and \meta{B1}=\meta{bizarre}&
+%   \meta{space}=\meta{delimiter}\meta{space}:
 %    \begin{macrocode}
   \expandafter\@ifdefinable\csname#3lc@remtrailspace\endcsname{%
     \expandafter\long
     \expandafter\def
     \csname#3lc@remtrailspace\endcsname##1#1#2##2#2#1{%
 %    \end{macrocode}
+%   \InsertPrefixedUsageToIndex{prefix}{lc@remtrailspace}&
 %   Above was said that forking can take place depending on emptiness of
 %   the second argument. The arguments come from the items of the comma-&
 %   separated list---thus they might contain macro-definitions and/or
@@ -1034,39 +1461,61 @@
       \fi
 %    \end{macrocode}
 %   The appropriate action in case of no more trailing \meta{space} is
-%   removing leading \meta{space}. In this case |##1| is terminated by
-%   \meta{bizarre}, so add only \meta{space}\meta{bizarre}\meta{B2} at the
-%   end instead of \meta{bizarre}\meta{space}\meta{bizarre}\meta{B2}\\
-%   (\meta{B2}=\meta{bizarre}=\meta{delimiter} in
-%   |\|\meta{prefix}|lc@remleadspace|):
+%   checking if the item is not empty and if so, initiating the removal
+%   of leading \meta{space}. In this case |##1| is terminated by
+%   \meta{bizarre}. If the item is empty, the leading \meta{space}
+%   inserted by the iterator for brace-protection is also removed so that
+%   |##1| equals \meta{bizarre}. If the item is not empty, start leading-&
+%   \meta{space}-removal, but add only \meta{space}\meta{B2} at the end
+%   instead of \meta{bizarre}\meta{space}\meta{B2}---above was said that
+%   \meta{B2}=\meta{bizarre}\meta{bizarre}=&
+%   \meta{delimiter}\meta{delimiter} in |\|\meta{prefix}|lc@remleadspace|:
 %    \begin{macrocode}
-      {\csname#3lc@remleadspace\endcsname#2##1#1#2#2}%
+      {%
+        {\toks@{##1}\edef\@tempa{\the\toks@}%
+         \toks@{#2}\edef\@tempb{\the\toks@}%
+         \expandafter}%
+        \ifx\@tempa\@tempb
+          \expandafter\@gobble
+        \else
+          \expandafter\@firstofone
+        \fi
+        {\csname#3lc@remleadspace\endcsname#2##1#1#2#2}%
+%    \end{macrocode}
+%    \compensategap
+%    \InsertPrefixedUsageToIndex{prefix}{lc@remleadspace}&
+%    \begin{macrocode}
+      }%
 %    \end{macrocode}
 %   The appropriate action in case of trailing \meta{space} is checking
-%   and removing more thereof:
+%   and possibly removing more thereof:
 %    \begin{macrocode}
       {\csname#3lc@remtrailspace\endcsname##1#2#1#2#2#1}%
+%    \end{macrocode}
+%    \compensategap
+%    \InsertPrefixedUsageToIndex{prefix}{lc@remtrailspace}&
+%    \begin{macrocode}
     }%
   }%
 %    \end{macrocode}
 % \end{macro}
 % \begin{macro}{lc@remleadspace}
 % \Patchsavedatmacroname
-% \changes{v1.01}{2006/01/06}{Let \meta{B2}\ChgEq\meta{bizarre}}
-% \changes{v1.03}{2006/02/21}{Chan\-ged forking-mechanism from
-%   token-register to \string\verb+\string\@firstoftwo+/\empty
-%   \string\verb+\string\@secondoftwo+}
-% \changes{v1.06}{2006/04/20}{Use \string\verb*+\string\@ifdefinable+
-%   instead of \string\verb*+\string\newcommand+}
+% \changes{v1.01}{2006/01/06}{\meta{B2}\ChgEq\meta{bizarre}\meta{bizarre}.}
+% \changes{v1.03}{2006/02/21}{Chan\-ged forking-mechanism to
+%   \string\verb+\string\@firstoftwo+/\string\verb+\string\@secondoftwo+.}
+% \changes{v1.06}{2006/04/20}{\string\verb*+\string\@ifdefinable+
+%   instead of \string\verb*+\string\newcommand+.}
 %   |\|\meta{prefix}|lc@remleadspace| is similar to
 %   |\|\meta{prefix}|lc@remtrailspace|, but with \meta{B2}=\meta{bizarre}&
-%   =\meta{delimiter}:
+%   \meta{bizarre}=\meta{delimiter}\meta{delimiter}:
 %    \begin{macrocode}
   \expandafter\@ifdefinable\csname#3lc@remleadspace\endcsname{%
     \expandafter\long
     \expandafter\def
     \csname#3lc@remleadspace\endcsname##1#2#1##2#2#2{%
 %    \end{macrocode}
+%    \InsertPrefixedUsageToIndex{prefix}{lc@remleadspace}&
 %   Above was said that forking can take place e.g., depending on
 %   emptiness of the first argument. Arguments still come from the list-&
 %   items, so let's use token-registers for the same reasons as in
@@ -1088,10 +1537,11 @@
       \fi
 %    \end{macrocode}
 %   The appropriate action in case of leading \meta{space} is checking
-%   and removing more thereof:
+%   and possibly removing more thereof:
 %    \begin{macrocode}
       {\csname#3lc@remleadspace\endcsname#2##2#2#2}%
 %    \end{macrocode}
+%    \InsertPrefixedUsageToIndex{prefix}{lc@remleadspace}&
 %   In case of no more leading \meta{space}, the actual work, which is
 %   defined in user-macro's |\@tempa|, can be done:
 %    \begin{macrocode}
@@ -1102,10 +1552,15 @@
 % \end{macro}
 % \begin{macro}{lc@iterate}
 % \Patchsavedatmacroname
-% \changes{v1.06}{2006/04/20}{Use \string\verb*+\string\@ifdefinable+
-%   instead of \string\verb*+\string\newcommand+}
+% \changes{v1.06}{2006/04/20}{\string\verb*+\string\@ifdefinable+
+%   instead of \string\verb*+\string\newcommand+.}
 % \changes{v1.07}{2006/04/27}{Define \string\verb*+\string\@tempa+
-%   in terms of \string\verb*+\string\long+}
+%   in terms of \string\verb*+\string\long+.}
+% \changes{v1.08}{2006/07/10}{Chan\-ged forking-mechanism to
+%   \string\verb+\string\@firstoftwo+/\string\verb+\string\@secondoftwo+.}
+% \changes{v1.09}{2006/07/16}{Chan\-ged forking-mechanism so that
+%   two temporary macros suffice.}
+% \changes{v1.10}{2006/07/21}{Empty-argument-check removed.}
 %   |\|\meta{prefix}|lc@iterate| iterates on arguments which are
 %   delimited by \meta{delimiter}.
 %    \begin{macrocode}
@@ -1114,81 +1569,52 @@
     \expandafter\def
     \csname#3lc@iterate\endcsname##1#2{%
 %    \end{macrocode}
-%   Let's put the \meta{space}, which needs to be inserted for brace-&
-%   removal-protection, into a token-register---just in case: Maybe some
-%   day somebody might specify weird |\fi|- or multiple-token-\meta{space}
-%   or the like&
-%   \dots\thinspace:
-%    \begin{macrocode}
-      \toks@{#1}%
-%    \end{macrocode}
+%    \InsertPrefixedUsageToIndex{prefix}{lc@iterate}&
 %   Make locally available the arguments as macros:\\
-%   |\@tempa|\(=\)current argument without leading \meta{space}\\
-%   |\@tempb|\(=\)current argument\\
-%   |\@tempc|\(=\)recursion-stop-item\\
-%   |\@tempd|\(=\)call for trailing-\meta{space}-removal\\
-%   (|\|\meta{prefix}|lc@remleadspace| launches |\@tempa|
-%   when no more leading \meta{space} is present---therefore before
-%   starting the leading-\meta{space}-removal, |\@tempa| is defined to
-%   redefine itself to the desired value)\thinspace:
+%   |\@tempa|\(=\)current argument\\
+%   |\@tempb|\(=\)recursion-stop-item:
 %    \begin{macrocode}
       \begingroup
-      \long\def\@tempa#2####1#2{\toks@{####1}\edef\@tempa{\the\toks@}}%
-      \csname#3lc@remleadspace\endcsname#2##1#2#1#2#2%
       \toks@{##1}%
-      \edef\@tempb{\the\toks@}%
+      \edef\@tempa{\the\toks@}%
       \toks@{#1\@nil}%
-      \edef\@tempc{\the\toks@}%
-      \toks@{\csname#3lc@remtrailspace\endcsname##1#2#1#2#2#1}%
-      \edef\@tempd{\the\toks@}%
-%    \end{macrocode}
-%   Test if the current argument equals the recursion-stop-item:
-%    \begin{macrocode}
-      \ifx\@tempb\@tempc
+      \edef\@tempb{\the\toks@}%
 %    \end{macrocode}
-%   If so terminate the iteration---do nothing but closing the current
-%   group:
+%   End the group and test if the current argument equals the
+%   recursion-stop-item:
 %    \begin{macrocode}
-        \expandafter\endgroup
+      \expandafter\endgroup\ifx\@tempa\@tempb
+        \expandafter\@gobble
       \else
+        \expandafter\@firstofone
+      \fi
 %    \end{macrocode}
-%   Otherwise check---before closing the group---if the current argument
-%   minus leading \meta{space} is empty:
-%    \begin{macrocode}
-        \ifx\@tempa\@empty
-%    \end{macrocode}
-%   If so, do nothing but ending the group:
+%   If not: Start trailing-space-removal\dots, then continue iterating the
+%   list and hereby add a preceding \meta{space} to the next item for
+%   brace-protection during trailing-\meta{space}-removal in the next run:
 %    \begin{macrocode}
-          \expandafter\endgroup
-        \else
+      {%
+        \csname#3lc@remtrailspace\endcsname##1#2#1#2#2#1%
 %    \end{macrocode}
-%   Otherwise launch trailing-\meta{space}-removal:
+%    \compensategap
+%    \InsertPrefixedUsageToIndex{prefix}{lc@remtrailspace}&
 %    \begin{macrocode}
-          \expandafter\expandafter
-          \expandafter            \endgroup
-          \expandafter\@tempd
-        \fi
+        \csname#3lc@iterate\endcsname#1%
 %    \end{macrocode}
-%   Then continue iterating the list and hereby add a preceding
-%   \meta{space} to the next item for brace-protection during trailing-&
-%   \meta{space}-removal in the next run:
+%    \compensategap
+%    \InsertPrefixedUsageToIndex{prefix}{lc@iterate}&
 %    \begin{macrocode}
-        \csname#3lc@iterate\expandafter\expandafter
-        \expandafter\endcsname
-        \expandafter\the
-        \expandafter\toks@
-      \fi
+      }%
     }%
   }%
 %    \end{macrocode}
 % \end{macro}
 % \begin{macro}{eachlabelcase}
 % \Patchsavedatmacroname
-% \changes{v1.03}{2006/02/21}{Chan\-ged forking-mechanism from
-%   token-register to \string\verb+\string\@firstoftwo+/\empty
-%   \string\verb+\string\@secondoftwo+}
-% \changes{v1.06}{2006/04/20}{Use \string\verb*+\string\@ifdefinable+
-%    instead of \string\verb*+\string\newcommand+}
+% \changes{v1.03}{2006/02/21}{Chan\-ged forking-mechanism to
+%   \string\verb+\string\@firstoftwo+/\string\verb+\string\@secondoftwo+.}
+% \changes{v1.06}{2006/04/20}{\string\verb*+\string\@ifdefinable+
+%    instead of \string\verb*+\string\newcommand+.}
 %   |\|\meta{prefix}|eachlabelcase|'s optional argument is the possibly-&
 %   to-be-defined control-sequence. The mandatory-argument contains the
 %   argument-triplet-list.
@@ -1197,6 +1623,7 @@
     \expandafter\DeclareRobustCommand
     \csname#3eachlabelcase\endcsname[2][]{%
 %    \end{macrocode}
+%   \InsertPrefixedUsageToIndex{prefix}{eachlabelcase}&
 %   Locally define |\@tempa|---it is called by
 %   |\|\meta{prefix}|lc@remleadspace| for working on a list-item when all
 %   surrounding \meta{space} has been removed:
@@ -1205,7 +1632,7 @@
 %    \end{macrocode}
 %   The stuff that results from \meta{space}-removing is surrounded by
 %   \meta{delimiter}. It cannot be processed at this place, as first the
-%   triplet needs to be split into it's components by |\@tempb|:
+%   triplet needs to be split into its components by |\@tempb|:
 %    \begin{macrocode}
         \long\def\@tempa#2####1#2{%
           \@tempb####1#2#1#2#2%
@@ -1240,8 +1667,16 @@
             }%
             \toks@\expandafter{\the\toks@{########1}}%
             \csname#3lc@remleadspace\endcsname#2%
+%    \end{macrocode}
+%    \compensategap
+%    \InsertPrefixedUsageToIndex{prefix}{lc@remleadspace}&
+%    \begin{macrocode}
           }%
           \toks@{{####1}}\csname#3lc@remleadspace\endcsname#2%
+%    \end{macrocode}
+%    \compensategap
+%    \InsertPrefixedUsageToIndex{prefix}{lc@remleadspace}&
+%    \begin{macrocode}
         }%
 %    \end{macrocode}
 %   Let's clear the register where the action-queue is accumulated:
@@ -1252,6 +1687,7 @@
 %    \begin{macrocode}
         \csname#3lc@iterate\endcsname#1##2#2\@nil#2%
 %    \end{macrocode}
+%    \InsertPrefixedUsageToIndex{prefix}{lc@iterate}&
 %   In case that the optional argument is specified, the routine
 %   |\lc@macrodefiner| will modify the register to define a macro:
 %    \begin{macrocode}
@@ -1266,8 +1702,8 @@
 % \end{macro}
 % \begin{macro}{lotlabelcase}
 % \Patchsavedatmacroname
-% \changes{v1.06}{2006/04/20}{Use \string\verb*+\string\@ifdefinable+
-%    instead of \string\verb*+\string\newcommand+}
+% \changes{v1.06}{2006/04/20}{\string\verb*+\string\@ifdefinable+
+%    instead of \string\verb*+\string\newcommand+.}
 %   |\|\meta{prefix}|lotlabelcase|'s optional argument is the possibly-&
 %   to-be-defined control-sequence. The five mandatory-arguments contain
 %   the label-list and the actions that shall take place in the cases: All
@@ -1278,6 +1714,7 @@
     \expandafter\DeclareRobustCommand
     \csname#3lotlabelcase\endcsname[6][]{%
 %    \end{macrocode}
+%    \InsertPrefixedUsageToIndex{prefix}{lotlabelcase}&
 %   Locally define |\@tempa|---it is called by
 %   |\|\meta{prefix}|lc@remleadspace| for working on a list-item when all
 %   surrounding \meta{space} has been removed:
@@ -1307,6 +1744,7 @@
 %    \begin{macrocode}
         \csname#3lc@iterate\endcsname#1##2#2\@nil#2%
 %    \end{macrocode}
+%    \InsertPrefixedUsageToIndex{prefix}{lc@iterate}&
 %   Assign the register according to the label-defining-cases which are
 %   now represented by the definitions of |\@tempb| and |\@tempc| which
 %   are defined either |\relax| or |empty|:
@@ -1344,19 +1782,59 @@
   \ifx\@tempa\@tempb
     \expandafter\global\expandafter\let
       \csname#3lc@remtrailspace\expandafter\endcsname
+%    \end{macrocode}
+%    \compensategap
+%    \InsertPrefixedUsageToIndex{prefix}{lc@remtrailspace}&
+%    \begin{macrocode}
       \csname#3lc@remtrailspace\endcsname
+%    \end{macrocode}
+%    \compensategap
+%    \InsertPrefixedUsageToIndex{prefix}{lc@remtrailspace}&
+%    \begin{macrocode}
     \expandafter\global\expandafter\let
       \csname#3lc@remleadspace\expandafter\endcsname
+%    \end{macrocode}
+%    \compensategap
+%    \InsertPrefixedUsageToIndex{prefix}{lc@remleadspace}&
+%    \begin{macrocode}
       \csname#3lc@remleadspace\endcsname
+%    \end{macrocode}
+%    \compensategap
+%    \InsertPrefixedUsageToIndex{prefix}{lc@remleadspace}&
+%    \begin{macrocode}
     \expandafter\global\expandafter\let
       \csname#3lc@iterate\expandafter\endcsname
+%    \end{macrocode}
+%    \compensategap
+%    \InsertPrefixedUsageToIndex{prefix}{lc@iterate}&
+%    \begin{macrocode}
       \csname#3lc@iterate\endcsname
+%    \end{macrocode}
+%    \compensategap
+%    \InsertPrefixedUsageToIndex{prefix}{lc@iterate}&
+%    \begin{macrocode}
     \expandafter\global\expandafter\let
       \csname#3eachlabelcase\expandafter\endcsname
+%    \end{macrocode}
+%    \compensategap
+%    \InsertPrefixedUsageToIndex{prefix}{eachlabelcase}&
+%    \begin{macrocode}
       \csname#3eachlabelcase\endcsname
+%    \end{macrocode}
+%    \compensategap
+%    \InsertPrefixedUsageToIndex{prefix}{eachlabelcase}&
+%    \begin{macrocode}
     \expandafter\global\expandafter\let
       \csname#3lotlabelase\expandafter\endcsname
+%    \end{macrocode}
+%    \compensategap
+%    \InsertPrefixedUsageToIndex{prefix}{lotlabelcase}&
+%    \begin{macrocode}
       \csname#3lotlabelcase\endcsname
+%    \end{macrocode}
+%    \compensategap
+%    \InsertPrefixedUsageToIndex{prefix}{lotlabelcase}&
+%    \begin{macrocode}
   \fi
 %    \end{macrocode}
 % Now the definition of |\DefineLabelcase| is complete:
@@ -1378,14 +1856,16 @@
 %    \end{macrocode*}
 % \let\pref\empty
 % \begin{macro}{\lc@macrodefiner}
-% \changes{v1.06}{2006/04/20}{Use \string\verb*+\string\@ifdefinable+
-%    instead of \string\verb*+\string\newcommand+}
+% \changes{v1.06}{2006/04/20}{\string\verb*+\string\@ifdefinable+
+%    instead of \string\verb*+\string\newcommand+.}
+% \changes{v1.11}{2006/08/04}{Unnecessary
+%   \string\verb*+\string\expandafter+ removed.}
 %   There is still the routine left which is applied by the user-macros
-%   for having the action-queue-register modified, so that when flushing
-%   it, a macro will be produced instead of queue-execution.
-%   |\lc@macrodefiner| takes as it's argument the optional argument of a
+%   for having the action-queue-register modified, so that when
+%   ``flushing'' it, a macro will be produced instead of queue-execution.
+%   |\lc@macrodefiner| takes as its argument the optional argument of a
 %   user-macro. In case that the argument is not empty, the action-queue-&
-%   register is modified, so that it's flushing yields the attempt of
+%   register is modified, so that ``flushing'' it yields the attempt of
 %   defining a macro from the argument which expands to the former content
 %   of the register:
 %    \begin{macrocode}
@@ -1394,35 +1874,35 @@
   \ifx\@tempa\@empty
   \else
     \@temptokena\expandafter{%
-      \expandafter\begingroup
-      \expandafter\toks@
-      \expandafter\expandafter
-      \expandafter            {%
-      \expandafter\expandafter
-      \expandafter            \@temptokena
-      \expandafter\expandafter
-      \expandafter            {%
-      \expandafter\the
-      \expandafter\@temptokena
-      \expandafter}%
-      \expandafter}%
-      \expandafter\@temptokena
-      \expandafter{%
-      \expandafter\@temptokena
-      \expandafter{%
-      \the\@temptokena}%
-      \@ifdefinable#1{\edef#1{\the\@temptokena}}}%
-      \expandafter\expandafter
-      \expandafter            \endgroup
-      \expandafter\the
-      \expandafter\@temptokena
-      \the\toks@
+                \expandafter\begingroup
+                \expandafter\toks@
+                \expandafter\expandafter
+                \expandafter            {%
+                \expandafter\expandafter
+                \expandafter            \@temptokena
+                \expandafter\expandafter
+                \expandafter            {%
+                \expandafter\the
+                \expandafter\@temptokena
+                \expandafter}%
+                \expandafter}%
+                \expandafter\@temptokena
+                \expandafter{%
+                \expandafter\@temptokena
+                \expandafter{%
+                \the\@temptokena}%
+                \@ifdefinable#1{\edef#1{\the\@temptokena}}}%
+                \expandafter\endgroup
+                \the\expandafter\@temptokena
+                \the\toks@
     }%
   \fi
 }%
-%</labelcas>
 %    \end{macrocode}
 % \end{macro}
-%
+% \iffalse
+%</labelcas>
+% \fi
+% \newpage\anglechange\PrintChanges
 % \Finale
 \endinput
diff --git a/Master/texmf-dist/source/latex/labelcas/labelcas.ins b/Master/texmf-dist/source/latex/labelcas/labelcas.ins
index 380cc1fc6e9..bbc70e03230 100644
--- a/Master/texmf-dist/source/latex/labelcas/labelcas.ins
+++ b/Master/texmf-dist/source/latex/labelcas/labelcas.ins
@@ -1,7 +1,7 @@
 %%
 %% Copyright (C) 2006 by Ulrich Diez <ulrich.diez@alumni.uni-tuebingen.de>
 %%
-%% This work may be distributed and/or modified under the conditions of
+%% This Work may be distributed and/or modified under the conditions of
 %% the LaTeX Project Public License, either version 1.3 of this license
 %% or (at your option) any later version.  The latest version of this
 %% license is in:
@@ -11,7 +11,13 @@
 %% and version 1.3 or later is part of all distributions of LaTeX version
 %% 2003/12/01 or later.
 %%
-
+%% This Work has the LPPL maintenance status `author-maintained'.
+%%
+%% The author and Current Maintainer of this Work is Ulrich Diez.
+%%
+%% This Work consists of the files labelcas.dtx, labelcas.ins, README and
+%% the derived files labelcas.sty and labelcas.pdf.
+%%
 \input docstrip.tex
 \keepsilent