From f178d106a65d06929870917eddad8bdaa1ece706 Mon Sep 17 00:00:00 2001
From: Karl Berry <karl@freefriends.org>
Date: Sun, 18 Oct 2009 23:59:04 +0000
Subject: revtex 4.1 (14oct09)

git-svn-id: svn://tug.org/texlive/trunk@15832 c570f23f-e606-0410-a88d-b1316a301751
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 Master/texmf-dist/source/latex/revtex/textcase.dtx | 404 ---------------------
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-% \iffalse
-%% Source File: textcase.dtx
-%% Copyright 1997 1998 David Carlisle
-%%
-%% This file may be distributed under the terms of the LPPL.
-%% See 00readme.txt for details.
-%
-%<*dtx>
-          \ProvidesFile{textcase.dtx}
-%</dtx>
-%<package>\NeedsTeXFormat{LaTeX2e}
-%<package>\ProvidesPackage{textcase}
-%<driver> \ProvidesFile{textcase.drv}
-% \fi
-%         \ProvidesFile{textcase.dtx}
-       [1998/11/12 v0.06 Text only upper/lower case changing (DPC)]
-%
-% \iffalse
-%<*driver>
-\documentclass{ltxdoc}
-\usepackage{textcase}
-\begin{document}
-\DocInput{textcase.dtx}
-\end{document}
-%</driver>
-% \fi
-%
-% \GetFileInfo{textcase.dtx}
-% \CheckSum{110}
-%
-% \changes{v0.01}{1997/09/28}
-%    {Posted to c.t.t}
-% \changes{v0.02}{1997/09/28}
-%    {Support \cs{ensuremath}}
-% \changes{v0.03}{1997/12/12}
-%    {Donald Arseneau: support \cs{ref} \cs{cite} \cs{label}}
-% \changes{v0.04}{1997/12/14}
-%    {Convert to dtx form, add \cs{NoCaseChange}}
-% \changes{v0.04}{1997/12/14}
-%    {Support (most uses of) optional argument of \cs{cite}}
-% \changes{v0.05}{1997/12/16}
-%    {More comments from Donald,
-%     perhaps I should just give him this package for Christmas}
-% \changes{v0.06}{1998/11/12}
-%    {overload option}
-%
-%
-% \title{The \textsf{textcase} package\thanks{This file
-%        has version number \fileversion, last
-%        revised \filedate.}}
-% \author{David Carlisle\thanks{%^^A
-%   Reorganisation to suppport skipping a wider class of
-%   things than just math done by Donald Arseneau}}
-%
-% \date{\filedate}
-%
-% \maketitle
-%
-% \section{Introduction}\label{intro}
-% |\MakeTextUppercase| and |\MakeTextLowercase| are versions of the
-% standard |\MakeUppercase| and |\MakeLowercase| that do not change
-% the case of any math sections in their arguments.
-%\begin{verbatim}
-% \MakeTextUppercase{abc\ae\ \( a = b \)  and $\alpha \neq a$ 
-%   or even \ensuremath{x=y} and $\ensuremath{x=y}$}
-%\end{verbatim}
-% Should produce:
-% \begin{quotation}
-%  ABC\AE\ \( a = b \)  AND $\alpha \neq a$ 
-%   OR EVEN \ensuremath{x=y} AND $\ensuremath{x=y}$
-% \end{quotation}
-%
-% Version 0.03 of this package incorporates some changes suggested by
-% Donald Arseneau so that as well as math mode, the arguments of
-% |\cite|, |\label| and |\ref| are also prevented from being uppercased.
-% So you can now go
-%\begin{verbatim}
-% \MakeTextUppercase{%
-%    Text in section~\ref{intro}, about \cite[pp 2--4]{bbb}}
-%\end{verbatim}
-% which produces
-% \begin{quotation}
-% \MakeTextUppercase{%
-%    Text in section~\ref{intro}, about \cite[pp 2--4]{bbb}}
-% \end{quotation}
-% If, instead, the standard |\MakeUppercase| were used here, the keys
-% `into' and `bbb' would be uppercased and generate errors about
-% undefined references to INTRO and BBB.
-%
-% Sometimes there may be a special section of text that should not be
-% uppercased. This can be marked with |\NoCaseChange|, as follows.
-%\begin{verbatim}
-% \MakeTextUppercase{%
-%    Text \NoCaseChange{More Text} yet more text}
-%\end{verbatim}
-% which produces
-% \begin{quotation}
-% \MakeTextUppercase{%
-%    Text \NoCaseChange{More Text} yet more text}
-% \end{quotation}
-%
-% |\NoCaseChange| has other uses. If for some reason you need a
-% tabular environment within an uppercased section, then you need
-% to ensure that the name `tabular' and the preamble (eg `ll')
-% does not get uppercased:
-%\begin{verbatim}
-% \MakeTextUppercase{%
-%    Text \NoCaseChange{\begin{tabular}{ll}}%
-%                        table&stuff\\goes&here
-%         \NoCaseChange{\end{tabular}}
-%    More text}
-%\end{verbatim}
-% which produces
-% \begin{quotation}
-% \MakeTextUppercase{%
-%    Text \NoCaseChange{\begin{tabular}{ll}}%^^A
-%                        table&stuff\\goes&here
-%         \NoCaseChange{\end{tabular}}
-%    More text}
-% \end{quotation}
-%
-% \section{Features and Foibles}
-%
-% \subsection{Nested text}
-% The commands defined here only skip math sections and |\ref| arguments
-% if they are not `hidden' inside a |{ }| brace group. All text inside
-% such a group will be made uppercase just as with the standard
-% |\MakeUppercase|.
-%\begin{verbatim}
-% \MakeTextUppercase{a b {c $d$} $e$}
-%\end{verbatim}
-% produces
-% \begin{quotation}
-%  \MakeTextUppercase{a b {c $d$} $e$}
-% \end{quotation}
-% Of course, this restriction does not apply to the arguments of the 
-% supported commands |\ensuremath|, |\label|, |\ref|, and |\cite|.
-%
-% If you cannot arrange for your
-% mathematics to be at the outer level of brace grouping, you should
-% use the following basic technique (which works even with the standard
-% |\MakeUppercase| command). Define a new command that expands to your
-% math expression, and then use that command, with |\protect|, in the
-% text to be uppercased. Note that if the text being uppercased is in a
-% section title or other moving argument you may need to make the
-% definition in the document preamble, rather than just before the
-% section command, so that the command is defined when the table of
-% contents file is read.
-%\begin{verbatim}
-% \MakeTextUppercase{%
-%        Text \fbox{$a=b$ and $x=y$}}%
-%
-% \newcommand{\mathexprone}{$a=b$}
-% \newcommand{\mathexprtwo}{$x=y$}
-% \MakeTextUppercase{%
-%        Text \fbox{\protect\mathexprone\ and \protect\mathexprtwo}}%
-%\end{verbatim}
-% which produces
-% \begin{quotation}
-% \MakeTextUppercase{%
-%        Text \fbox{$a=b$ and $x=y$}}%
-%
-% \newcommand{\mathexprone}{$a=b$}
-% \newcommand{\mathexprtwo}{$x=y$}
-% \MakeTextUppercase{%
-%        Text \fbox{\protect\mathexprone\ and \protect\mathexprtwo}}%
-% \end{quotation}
-%
-% \subsection{Citations}
-% As documented above, |\cite| and |\ref| commands are not uppercased by
-% |\MakeTextUppercase|. If you are using a non-numeric citation scheme
-% you may want the replacement text for |\cite| to be uppercased.
-%
-% It is difficult to arrange that |\MakeTextUppercase| uppercases such
-% text, not least because this would lead to interaction with the many
-% bibliography packages which redefine |\cite| one way or another. One
-% possibility to achieve this is to use Donald Arseneau's cite package
-% and to locally redefine |\citeform| to add |\MakeUppercase| around
-% the final text string produced by |\cite|.
-%\begin{verbatim}
-% \MakeTextUppercase{%
-%        Text \cite{bbb} and \cite{ccc}}
-%
-% {\renewcommand\citeform{\MakeUppercase}\MakeTextUppercase{%
-%        Text \cite{bbb} and \cite{ccc}}}
-%\end{verbatim}
-% which produces\footnote{This is faked, so this document does not
-%  rely on \texttt{cite.sty} being installed}
-% \begin{quotation}
-%  TEXT [1] AND [David Carlisle 1997]
-%
-%  TEXT [1] AND [DAVID CARLISLE 1997]
-% \end{quotation}
-%
-% \subsection{overload Option}
-% By default the package only defines new commands, |\MakeTextUppercase|
-% and |\MakeTextlowercase| as described above. You may wish to redefine
-% the standard |\MakeUppercase| and |\MakeLowercase| commands to be
-% the same as these new commands. So that for example headings in the
-% book class have this new feature without any further redefinition.
-% You may use the package option |[overload]| in which case these
-% new definitions will be overloaded on to the existing command names.
-%
-% \begin{thebibliography}{9}
-%
-% \bibitem{bbb} Something numeric
-% \bibitem[David Carlisle 1997]{ccc} Something textual
-% \end{thebibliography}
-%
-% \StopEventually{}
-%
-% \section{Implementation}
-%
-%    \begin{macrocode}
-%<*package>
-%    \end{macrocode}
-%
-% \begin{macro}{\@uclcnotmath}
-% This is the main macro of this package. It is basically
-% a copy of |\MakeTextUppercase| and |\MakeTextLowercase|
-% from the \LaTeX\ kernel, modified slightly so that they
-% can share code (that modification could be done to the
-% standard versions as well) and then further changed to
-% skip certain features like math mode and |\label| arguments.
-%
-% The arguments are:\\
-% |#1|: Extra commands to apply for case changing.
-%       Used to locally redefine |\i| and |\j| for uppercasing.\\
-% |#2|: Either |##1##2| or |##2##1| to control the order
-%       in which |\let| is applied to the pairs of control
-%       sequences in |\@uclclist|.\\
-% |#3|:  |\uppercase| or |\lowercase|.\\
-% |#4|: The text to be upper (or lower) cased.
-%    \begin{macrocode}
-\def\@uclcnotmath#1#2#3#4{\begingroup
-%    \end{macrocode}
-% Run extra commands (currently just to redefine |\i| and |\j|).
-%    \begin{macrocode}
-      #1%
-%    \end{macrocode}
-%
-% Locally set |\( \)| to be just |$ $|, so that the math skipping
-% code can be simplified, just to look for |$|.
-%    \begin{macrocode}
-      \def\({$}\let\)\(%
-%    \end{macrocode}
-%
-% Set up the `non-math' things that also have to be skipped.
-%    \begin{macrocode}
-      \def\NoCaseChange##1{\noexpand\NoCaseChange{\noexpand##1}}%
-      \@nonchangecase\label
-      \@nonchangecase\ref
-      \@nonchangecase\ensuremath
-%    \end{macrocode}
-%
-% |\cite| a bit trickier, as we want to uppercase any optional argument.
-% This will fail if the optional argument contains a brace group, but
-% should catch most cases.
-%
-% |text \cite[page 1]{foo} more text| ends up as
-%\begin{verbatim}
-% \uppercase{text \toks@{\cite[page1]}%
-% \the\toks@{foo}%
-% \uppercase{ more text}
-%\end{verbatim}
-%    \begin{macrocode}
-      \def\cite##1##{\toks@{\noexpand\cite##1}\@citex}%
-      \def\@citex##1{\NoCaseChange{\the\toks@{##1}}}%
-%    \end{macrocode}
-% (|\@citex| is a scratch macro here, not a redefinition of the existing
-% |\@citex|.)
-%
-% The following is essentially taken from |\MakeUppercase|.
-% Recursively execute |\reserved@a| to |\let| the pairs in |\@uclclist|.
-% The strange construction with |\@gobble| at the end just gobbles the
-% final recursive call.
-%
-% Incidentally, packages should not use the |\reserved@|\ldots\ scratch
-% macros, which are `reserved' for use within the \LaTeX\ kernel, but
-% (a) this code is essentially a copy from the kernel, and 
-% (b) I'm allowed to break the rules, so there.
-%    \begin{macrocode}
-      \def\reserved@a##1##2{\let#2\reserved@a}%
-      \expandafter\reserved@a\@uclclist\reserved@b{\reserved@b\@gobble}%
-%    \end{macrocode}
-%
-% Expand everything first so that the `skipping' code can see what to
-% skip and so that tokens are revealed to |\uppercase|.
-% This makes the argument `moving'.
-% The |$\valign$| is just a fake math expression used to terminate
-% the parsing done by |\@skipmath|.
-%    \begin{macrocode}
-      \protected@edef\reserved@a{\endgroup
-          \noexpand\@skipmath#3#4$\valign$}%
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-      \reserved@a}
-%    \end{macrocode}
-% \end{macro}
-%
-% \begin{macro}{\@nonchangecase}
-%    \begin{macrocode}
-\def\@nonchangecase#1{\def#1##1{\NoCaseChange{#1{##1}}}}
-%    \end{macrocode}
-% \end{macro}
-%
-% \begin{macro}{\NoCaseChange}
-% For hiding arbitrary text from |\uppercase|. This innocuous
-% definition is used for any occurrence of |\NoCaseChange|
-% in text that is not passed to |\MakeTextUppercase|. For example a 
-% section heading may be uppercased, but the toc entry may not.
-% It is also used for nested definitions of |\cite| etc, where the 
-% |\NoCaseChange| is inserted by expansion, but not removed as it is
-% hidden by the brace group.
-%    \begin{macrocode}
-\let\NoCaseChange\@firstofone
-%    \end{macrocode}
-% \end{macro}
-%
-%\begin{macro}{\@skipmath}
-% |#1|: operation |\uppercase| / |\lowercase|\\
-% |#2|: text up to first (next) |$|\\
-% |#3|: first math mode material (or |\valign| sentinel)
-%    \begin{macrocode}
-\def\@skipmath#1#2$#3${%
-  \@skip@nonchangecase#1#2\NoCaseChange\valign
-  \ifx\valign#3%
-  \else
-    $#3$%
-    \expandafter\@skipmath\expandafter#1%
-  \fi}
-%    \end{macrocode}
-% \end{macro}
-%
-%\begin{macro}{\@skip@nonchangecase}
-% |#1|: |\uppercase| or |\lowercase|\\
-% |#2|: Text up to the first command (such as |\cite|) made `safe'.
-%       or the first use of |\NoCaseChange|.
-%    \begin{macrocode}
-\def\@skip@nonchangecase#1#2\NoCaseChange#3{%
-  #1{#2}%
-  \ifx\valign#3%
-  \else
-    #3%
-    \expandafter\@skip@nonchangecase\expandafter#1%
-  \fi}
-%    \end{macrocode}
-% \end{macro}
-%
-% \begin{macro}{\MakeTextUppercase}
-% \changes{v0.06}{1998/11/12}
-%    {Add edef to make behaviour more like \cs{MakeUppercase}}
-% Put it all together. Arrange for \i\ and \j\ to uppercase, and
-% to read the pairs in the ucase list `forwards'.
-%    \begin{macrocode}
-\DeclareRobustCommand\MakeTextUppercase{%
-  \@uclcnotmath{\def\i{I}\def\j{J}}{##1##2}\uppercase}
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\protected@edef\MakeTextUppercase#1{\MakeTextUppercase{#1}}
-%    \end{macrocode}
-% \end{macro}
-%
-% \begin{macro}{\MakeTextLowercase}
-% \changes{v0.06}{1998/11/12}
-%    {Add edef to make behaviour more like \cs{MakeLowercase}}
-% probably will never be used, but it is easy to implement.
-% Use |\lowercase| and read the pairs in the uppercase list `backwards'.
-%    \begin{macrocode}
-\DeclareRobustCommand\MakeTextLowercase{%
-  \@uclcnotmath{}{##2##1}\lowercase}
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\protected@edef\MakeTextLowercase#1{\MakeTextLowercase{#1}}
-%    \end{macrocode}
-% \end{macro}
-%
-% \begin{macro}{\MakeUppercase}
-% \begin{macro}{\MakeLowercase}
-% \changes{v0.06}{1998/11/12}
-%    {Option to overload added.  latex/2906}
-%    \begin{macrocode}
-\DeclareOption{overload}{%
-  \expandafter\let\csname MakeUppercase \expandafter\endcsname
-                  \csname MakeTextUppercase \endcsname
-  \expandafter\let\csname MakeLowercase \expandafter\endcsname
-                  \csname MakeTextLowercase \endcsname}
-%    \end{macrocode}
-%
-%    \begin{macrocode}
-\ProcessOptions
-%    \end{macrocode}
-% \end{macro}
-% \end{macro}
-%
-%    \begin{macrocode}
-%</package>
-%    \end{macrocode}
-%
-% \Finale
-%
-- 
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