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-% \iffalse meta-comment
-%
-% File: alphalph.dtx
-% Version: 2016/05/16 v2.5
-% Info: Convert numbers to letters
-%
-% Copyright (C)
-% 1999, 2006-2008, 2010, 2011 Heiko Oberdiek
-% 2016-2019 Oberdiek Package Support Group
-% https://github.com/ho-tex/oberdiek/issues
-%
-% This work may be distributed and/or modified under the
-% conditions of the LaTeX Project Public License, either
-% version 1.3c of this license or (at your option) any later
-% version. This version of this license is in
-% https://www.latex-project.org/lppl/lppl-1-3c.txt
-% and the latest version of this license is in
-% https://www.latex-project.org/lppl.txt
-% and version 1.3 or later is part of all distributions of
-% LaTeX version 2005/12/01 or later.
-%
-% This work has the LPPL maintenance status "maintained".
-%
-% The Current Maintainers of this work are
-% Heiko Oberdiek and the Oberdiek Package Support Group
-% https://github.com/ho-tex/oberdiek/issues
-%
-% The Base Interpreter refers to any `TeX-Format',
-% because some files are installed in TDS:tex/generic//.
-%
-% This work consists of the main source file alphalph.dtx
-% and the derived files
-% alphalph.sty, alphalph.pdf, alphalph.ins, alphalph.drv,
-% alphalph-test1.tex, alphalph-test2.tex, alphalph-test3.tex.
-%
-% Distribution:
-% CTAN:macros/latex/contrib/oberdiek/alphalph.dtx
-% CTAN:macros/latex/contrib/oberdiek/alphalph.pdf
-%
-% Unpacking:
-% (a) If alphalph.ins is present:
-% tex alphalph.ins
-% (b) Without alphalph.ins:
-% tex alphalph.dtx
-% (c) If you insist on using LaTeX
-% latex \let\install=y\input{alphalph.dtx}
-% (quote the arguments according to the demands of your shell)
-%
-% Documentation:
-% (a) If alphalph.drv is present:
-% latex alphalph.drv
-% (b) Without alphalph.drv:
-% latex alphalph.dtx; ...
-% The class ltxdoc loads the configuration file ltxdoc.cfg
-% if available. Here you can specify further options, e.g.
-% use A4 as paper format:
-% \PassOptionsToClass{a4paper}{article}
-%
-% Programm calls to get the documentation (example):
-% pdflatex alphalph.dtx
-% makeindex -s gind.ist alphalph.idx
-% pdflatex alphalph.dtx
-% makeindex -s gind.ist alphalph.idx
-% pdflatex alphalph.dtx
-%
-% Installation:
-% TDS:tex/generic/oberdiek/alphalph.sty
-% TDS:doc/latex/oberdiek/alphalph.pdf
-% TDS:source/latex/oberdiek/alphalph.dtx
-%
-%<*ignore>
-\begingroup
- \catcode123=1 %
- \catcode125=2 %
- \def\x{LaTeX2e}%
-\expandafter\endgroup
-\ifcase 0\ifx\install y1\fi\expandafter
- \ifx\csname processbatchFile\endcsname\relax\else1\fi
- \ifx\fmtname\x\else 1\fi\relax
-\else\csname fi\endcsname
-%</ignore>
-%<*install>
-\input docstrip.tex
-\Msg{************************************************************************}
-\Msg{* Installation}
-\Msg{* Package: alphalph 2016/05/16 v2.5 Convert numbers to letters (HO)}
-\Msg{************************************************************************}
-
-\keepsilent
-\askforoverwritefalse
-
-\let\MetaPrefix\relax
-\preamble
-
-This is a generated file.
-
-Project: alphalph
-Version: 2016/05/16 v2.5
-
-Copyright (C)
- 1999, 2006-2008, 2010, 2011 Heiko Oberdiek
- 2016-2019 Oberdiek Package Support Group
-
-This work may be distributed and/or modified under the
-conditions of the LaTeX Project Public License, either
-version 1.3c of this license or (at your option) any later
-version. This version of this license is in
- https://www.latex-project.org/lppl/lppl-1-3c.txt
-and the latest version of this license is in
- https://www.latex-project.org/lppl.txt
-and version 1.3 or later is part of all distributions of
-LaTeX version 2005/12/01 or later.
-
-This work has the LPPL maintenance status "maintained".
-
-The Current Maintainers of this work are
-Heiko Oberdiek and the Oberdiek Package Support Group
-https://github.com/ho-tex/oberdiek/issues
-
-
-The Base Interpreter refers to any `TeX-Format',
-because some files are installed in TDS:tex/generic//.
-
-This work consists of the main source file alphalph.dtx
-and the derived files
- alphalph.sty, alphalph.pdf, alphalph.ins, alphalph.drv,
- alphalph-test1.tex, alphalph-test2.tex, alphalph-test3.tex.
-
-\endpreamble
-\let\MetaPrefix\DoubleperCent
-
-\generate{%
- \file{alphalph.ins}{\from{alphalph.dtx}{install}}%
- \file{alphalph.drv}{\from{alphalph.dtx}{driver}}%
- \usedir{tex/generic/oberdiek}%
- \file{alphalph.sty}{\from{alphalph.dtx}{package}}%
-% \usedir{doc/latex/oberdiek/test}%
-% \file{alphalph-test1.tex}{\from{alphalph.dtx}{test1}}%
-% \file{alphalph-test2.tex}{\from{alphalph.dtx}{test2,etex}}%
-% \file{alphalph-test3.tex}{\from{alphalph.dtx}{test2,noetex}}%
-}
-
-\catcode32=13\relax% active space
-\let =\space%
-\Msg{************************************************************************}
-\Msg{*}
-\Msg{* To finish the installation you have to move the following}
-\Msg{* file into a directory searched by TeX:}
-\Msg{*}
-\Msg{* alphalph.sty}
-\Msg{*}
-\Msg{* To produce the documentation run the file `alphalph.drv'}
-\Msg{* through LaTeX.}
-\Msg{*}
-\Msg{* Happy TeXing!}
-\Msg{*}
-\Msg{************************************************************************}
-
-\endbatchfile
-%</install>
-%<*ignore>
-\fi
-%</ignore>
-%<*driver>
-\NeedsTeXFormat{LaTeX2e}
-\ProvidesFile{alphalph.drv}%
- [2016/05/16 v2.5 Convert numbers to letters (HO)]%
-\documentclass{ltxdoc}
-\usepackage{alphalph}[2016/05/16]
-\makeatletter
-\newalphalph{\fnsymbolwrap}[wrap]{\@fnsymbol}{}
-\newcommand*{\fnsymbolsingle}[1]{%
- \ensuremath{%
- \ifcase#1%
- \or *%
- \or \dagger
- \or \ddagger
- \or \mathsection
- \or \mathparagraph
- \else
- \@ctrerr
- \fi
- }%
-}
-\makeatother
-\newalphalph{\fnsymbolmult}[mult]{\fnsymbolsingle}{}
-\usepackage{amsmath}
-\DeclareMathOperator{\opDiv}{div}
-\DeclareMathOperator{\opMod}{mod}
-\newcommand*{\Def}{%
- \ensuremath{%
- \mathrel{\mathop{:}}=%
- }%
-}
-\usepackage{holtxdoc}[2011/11/22]
-\begin{document}
- \DocInput{alphalph.dtx}%
-\end{document}
-%</driver>
-% \fi
-%
-%
-%
-% \GetFileInfo{alphalph.drv}
-%
-% \title{The \xpackage{alphalph} package}
-% \date{2016/05/16 v2.5}
-% \author{Heiko Oberdiek\thanks
-% {Please report any issues at \url{https://github.com/ho-tex/oberdiek/issues}}}
-%
-% \maketitle
-%
-% \begin{abstract}
-% The package provides methods to represent numbers with a limited
-% set of symbols. Both \hologo{LaTeX} and \hologo{plainTeX} are supported.
-% \end{abstract}
-%
-% \tableofcontents
-%
-% \section{Documentation}
-%
-% \subsection{Introduction}
-% \hologo{LaTeX} counters can be represented in different ways
-% by using presentation commands:
-% \begin{quote}
-% \cs{arabic}, \cs{roman}, \cs{Roman},\\
-% \cs{alph}, \cs{Alph}, \cs{fnsymbol}
-% \end{quote}
-% The ranges of supported counter values are more or less
-% restricted. Only \cs{arabic} can be used with any counter
-% value \hologo{TeX} supports.
-% \begin{quote}
-% \catcode`\|=12 %
-% \begin{tabular}{@{}l|l|l|l@{}}
-% Presentation & Supported & Ignored & Error message\\
-% command & domain & values & ``Counter too large''\\
-% \hline
-% \cs{arabic}
-% & \ttfamily -MAX..MAX & &\\
-% \cs{roman}, \cs{Roman}
-% & \ttfamily 1..MAX & \ttfamily -MAX..0 &\\
-% \cs{alph}, \cs{Alph}
-% & \ttfamily 1..26 & 0 & \ttfamily -MAX..-1, 27..MAX\\
-% \cs{fnsymbol}
-% & \ttfamily 1..9 & 0 & \ttfamily -MAX..-1, 10..MAX\\
-% \hline
-% \end{tabular}\\[1ex]
-% \texttt{MAX} = \texttt{2147483647}
-% \end{quote}
-% Ordinal numbers are often used in documents: numbering
-% of chapters, sections, figures, footnotes and so on.
-% The layouter chooses \cs{Alph} for chapter numbers
-% and \cs{fnsymbol} for footnotes. But what can be done
-% if there are more than 26 chapters or more than 10 footnotes?
-% This package \xpackage{alphalph} allows to define new
-% presentation commands. They rely on a existing command
-% and define presentations for values greater the limits.
-% Three different methods are provided by the package.
-% In the following use cases they are presentated.
-%
-% \subsection{Use cases}
-%
-% \subsubsection{Number system based on symbols}
-%
-% Asume you are writing a book and your lecturer demands
-% that chapter numbers must be letters. But you have already
-% 30 chapters and you have only 26 letters?
-%
-% In the decimal system the situation would be clear.
-% If you run out of digits, you are using more digits
-% to represent a number. This method can be also be used
-% for letters. After chapter 26 with |Z| we us |AA|, |AB|, |AC|, and |AD|
-% for the remaining chapters.
-%
-% Happily this package already defines this presentation command:
-%\begin{quote}
-%\begin{verbatim}
-%\usepackage{alphalph}
-%\renewcommand*{\thechapter}{%
-% \AlphAlph{\value{chapter}}%
-%}
-%\end{verbatim}
-%\end{quote}
-% \cs{AlphAlph} generates:
-% \AlphAlph{1}, \AlphAlph{2}, \AlphAlph{3}, \dots,
-% \AlphAlph{26}, \AlphAlph{27}, \AlphAlph{28}, \dots
-%
-% The other presentation command is \cs{alphalph} for lowercase letters.
-%
-% \subsubsection{Wrap symbols around}
-%
-% Nine footnote symbols are quite a few.
-% Too soon the symbols are consumed
-% and \hologo{LaTeX} complains with the error ``Counter too large''.
-% However, it could be acceptable to start again with the symbols
-% from the beginning, especially if there are less than nine symbols
-% on a page.
-% This could be achieved by a counter reset.
-% But finding the right place can be difficult or needs manual
-% actions. Also a
-% unique counter value can be desirable (e.g. for generating
-% unique anchor/link names).
-% Package \xpackage{alphalph} allows you to define
-% a macro that implements a ``wrap around'', but letting
-% the value of the counter untouched:
-%\begin{quote}
-%\begin{verbatim}
-%\usepackage{alphalph}
-%\makeatletter
-%\newalphalph{\fnsymbolwrap}[wrap]{\@fnsymbol}{}
-%\makeatother
-%\renewcommand*{\thefootnote}{%
-% \fnsymbolwrap{\value{footnote}}%
-%}
-%\end{verbatim}
-%\end{quote}
-% \cs{fnsymbolwrap} generates:
-% \fnsymbolwrap{1}~(1), \fnsymbolwrap{2}~(2), \fnsymbolwrap{3}~(3), \dots,
-% \fnsymbolwrap{9}~(9), \fnsymbolwrap{10}~(10), \fnsymbolwrap{11}~11, \dots
-%
-% \subsubsection{Multiple symbols}
-%
-% \Hologo{LaTeX}'s standard set of footnote symbols contains doubled
-% symbols at the higher positions. Could this principle
-% be generalized?
-% Yes, but first we need a clean footnote symbol list without
-% doubled entries, example:
-%\begin{quote}
-%\begin{verbatim}
-%\usepackage{alphalph}
-%\makeatletter
-%\newcommand*{\fnsymbolsingle}[1]{%
-% \ensuremath{%
-% \ifcase#1%
-% \or *%
-% \or \dagger
-% \or \ddagger
-% \or \mathsection
-% \or \mathparagraph
-% \else
-% \@ctrerr
-% \fi
-% }%
-%}
-%\makeatother
-%\newalphalph{\fnsymbolmult}[mult]{\fnsymbolsingle}{}
-%\renewcommand*{\thefootnote}{%
-% \fnsymbolmult{\value{footnote}}%
-%}
-%\end{verbatim}
-%\end{quote}
-% The own definition of \cs{fnsymbolsingle} has the
-% advantage that this list can easily modified.
-% Otherwise you can use \cs{@fnsymbol} directly,
-% because it uses the same first five symbols.
-%\begin{quote}
-%\begin{verbatim}
-%\usepackage{alphalph}
-%\makeatletter
-%\newalphalph{\fnsymbolmult}[mult]{\@fnsymbol}{5}
-%\makeatother
-%\renewcommand*{\thefootnote}{%
-% \fnsymbolmult{\value{footnote}}%
-%}
-%\end{verbatim}
-%\end{quote}
-% \cs{fnsymbolmult} generates:
-% \fnsymbolmult{1}~(1), \fnsymbolmult{2}~(2), \fnsymbolmult{3}~(3),
-% \fnsymbolmult{4}~(4), \fnsymbolmult{5}~(5), \fnsymbolmult{6}~(6),
-% \dots, \fnsymbolmult{16}~16, \fnsymbolmult{17}~17, \dots
-%
-% \bigskip
-% The same method can also be used for the chapter problem
-% in the first discussed use case:
-%\begin{quote}
-%\begin{verbatim}
-%\usepackage{alphalph}
-%\makeatletter
-%\newalphalph{\AlphMult}[mult]{\@Alph}{26}
-%\makeatother
-%\renewcommand*{\chapter}{%
-% \AlphMult{\value{chapter}}%
-%}
-%\end{verbatim}
-%\end{quote}
-% \cs{AlphMult} then generates AA, BB, CC, and DD for chapters 27--30.
-%
-% \subsection{Glossary}
-%
-% \begin{description}
-% \item[Counter presentation command] is a macro that
-% expects a \hologo{LaTeX} counter name as argument.
-% Numbers cannot be used. Examples:
-% \cs{arabic}, \cs{alph}, \cs{fnsymbol}.
-% \item[Number presentation command] is a macro that
-% expects a number as argument. A number is anything
-% that \hologo{TeX} accepts as number including \cs{value}.
-% Examples: \cs{alphalph}, \cs{AlphAlph}, \cs{alphalph@alph}
-%
-% However, \cs{alph} or \cs{fnsymbol} are not number
-% presentation commands because they expect a counter
-% name as argument. Happily \hologo{LaTeX} counter presentation
-% commands internally uses number presentation commands
-% with the same name, but prefixed by `@'. Thus
-% \cs{@alph}, \cs{@fnsymbol} are number presentation commands.
-% \item[Symbols provider] is a command that can be used
-% to get a list of symbols. For example, \cs{@Alph}
-% provides the 26 uppercase letters from `A' to `Z'.
-% Basically a symbol provider is a number presentation
-% command, usually with a limited range.
-% \item[Number of symbols] is the number of the
-% last symbol slot of a symbol provider. Thus \cs{@Alph}
-% generates 26 symbols, \cs{@fnsymbol} provides 9 symbols.
-% \end{description}
-%
-% \subsection{Package usage}
-%
-% The package \Package{alphalph} can be used with both \hologo{plainTeX}
-% and \hologo{LaTeX}:
-% \begin{description}
-% \item[\hologo{plainTeX}:] |\input alphalph.sty|
-% \item[\hologo{LaTeX2e}:] |\usepackage{alphalph}|\\
-% There aren't any options.
-% \end{description}
-%
-% \subsection{User commands}
-%
-% \begin{declcs}{AlphAlph} \M{number}\\
-% \cs{alphalph} \M{number}
-% \end{declcs}
-% Both macros are number presentation commands that
-% expects a number as argument. \hologo{LaTeX} counters
-% are used with \cs{value}.
-%
-% The macros represents a number by letters.
-% First single letters |A..Z| are used, then
-% two letters |AA..ZZ|, three letters |AAA...ZZZ|, \dots
-% follow.
-%
-% Macro \cs{AlphAlph} uses uppercase letters,
-% \cs{alphalph} generates the lowercase variant.
-% \begin{quote}
-% \catcode`\|=12
-% \def\entry#1{
-% \texttt{#1}
-% & \texttt{\AlphAlph{#1}}
-% & \texttt{\alphalph{#1}}
-% }
-% \begin{tabular}{@{}l|l|l@{}}
-% \meta{number} & \verb|\AlphAlph{|\meta{number}\verb|}|
-% & \verb|\alphalph{|\meta{number}\verb|}|\\
-% \hline
-% \entry{1}\\
-% \entry{2}\\
-% \entry{26}\\
-% \entry{27}\\
-% \entry{30}\\
-% \entry{2000}\\
-% \entry{3752127}\\
-% \entry{10786572}\\
-% \entry{2147483647}\\
-% \end{tabular}
-% \end{quote}
-%
-% \begin{declcs}{newalphalph}
-% \M{cmd}
-% |[|\meta{method}|]|
-% \M{symbols provider}
-% \M{number of symbols}
-% \end{declcs}
-% Macro \cs{newalphalph} defines \meta{cmd} as new
-% number presentation command. Like \cs{newcommand} an error
-% is thrown, if macro \meta{cmd} already exists.
-%
-% The \meta{method} is one of |alph|, |wrap|, or |mult|.
-% The default is |alph|.
-%
-% As symbol provider a number presentation command
-% can be used, e.g. \cs{@fnsymbol}, \cs{@Alph}, or
-% \cs{alphalph@alph}.
-%
-% The last argument is the number of symbols.
-% If the argument is empty, then \cs{newalphalph} tries
-% to find this number itself. \hologo{LaTeX}'s number presentation
-% commands throw an error message, if the number is too large.
-% This error message is put in a macro \cs{@ctrerr}.
-% Thus \cs{newalphalph} calls the symbol provider and tests
-% a number by typesetting it in a temporary box. The error
-% macro \cs{@ctrerr} is catched, it proofs that the number
-% is not supported. Also if the width of the result is zero
-% the number is considered as unavailable.
-%
-% The empty argument is useful for potentially variable lists.
-% However if the end cannot be detected, then the number of
-% symbols must be given. This is also a lot faster. Therefore don't
-% let the argument empty without reason.
-%
-% \subsection{Programmer commands}
-%
-% \begin{declcs}{alphalph@Alph} \M{number}\\
-% \cs{alphalph@alph} \M{number}
-% \end{declcs}
-% They are basically the same as \cs{@Alph} and \cs{@alph}.
-% Some languages of package \xpackage{babel} redefine
-% \hologo{LaTeX}'s macros to include some font setup that
-% breaks expandibility. Therefore \cs{AlphAlph} and \cs{alphalph}
-% are based on \cs{alphalph@Alph} and \cs{alphalph@alph} to get
-% the letters. The behaviour of these symbol providers for numbers
-% outside the range |1..26| is undefined.
-%
-% \subsection{Design principles}
-%
-% \subsubsection{Number presentation commands}
-%
-% All number presentation commands that this package defines
-% (including \cs{alphalph} and \cs{AlphAlph}) have the following
-% properties:
-% \begin{itemize}
-% \item They are fully expandable. This means that they can safely
-% \begin{itemize}
-% \item be written to a file,
-% \item used in moving arguments (\hologo{LaTeX}: they are \emph{robust}),
-% \item used in a \cmd{\csname}-\cmd{\endcsname} pair.
-% \end{itemize}
-% \item If the argument is zero or negative, the commands expand
-% to nothing like \cmd{\romannumeral}.
-% \item The argument is a \hologo{TeX} number. Anything that would be
-% accepted by \cmd{\number} is a valid argument:
-% \begin{itemize}
-% \item explicite constants,
-% \item macros that expand to a number,
-% \item count registers, \hologo{LaTeX} counter can used
-% via \cmd{\value}, e.\,g.:\\
-% |\alphalph{\value{page}}|
-% \item \dots
-% \end{itemize}
-% \item \hologo{eTeX}'s numeric expressions are supported, if \hologo{eTeX} is
-% available. Then \cs{numexpr} is applied to the argument.
-% Package \cs{calc}'s expressions are not supported.
-% That would violate the expandibility.
-% \end{itemize}
-%
-% \subsubsection{General usability}
-%
-% \begin{description}
-% \item[\hologo{TeX} format:]
-% The package does not depend on \hologo{LaTeX}, it can also be used
-% by \hologo{plainTeX}, for example.
-% \item[\hologo{eTeX}:] \eTeX is supported, the macros are shorter and
-% faster. But \eTeX's extensions are not requirements.
-% Without \hologo{eTeX}, just the implementation changes. The properties
-% remain unchanged.
-% \end{description}
-%
-% \StopEventually{
-% }
-%
-% \section{Implementation}
-% \subsection{Begin\texorpdfstring{ of package}{}}
-% \begin{macrocode}
-%<*package>
-% \end{macrocode}
-% Reload check, especially if the package is not used with \LaTeX.
-% \begin{macrocode}
-\begingroup\catcode61\catcode48\catcode32=10\relax%
- \catcode13=5 % ^^M
- \endlinechar=13 %
- \catcode35=6 % #
- \catcode39=12 % '
- \catcode44=12 % ,
- \catcode45=12 % -
- \catcode46=12 % .
- \catcode58=12 % :
- \catcode64=11 % @
- \catcode123=1 % {
- \catcode125=2 % }
- \expandafter\let\expandafter\x\csname ver@alphalph.sty\endcsname
- \ifx\x\relax % plain-TeX, first loading
- \else
- \def\empty{}%
- \ifx\x\empty % LaTeX, first loading,
- % variable is initialized, but \ProvidesPackage not yet seen
- \else
- \expandafter\ifx\csname PackageInfo\endcsname\relax
- \def\x#1#2{%
- \immediate\write-1{Package #1 Info: #2.}%
- }%
- \else
- \def\x#1#2{\PackageInfo{#1}{#2, stopped}}%
- \fi
- \x{alphalph}{The package is already loaded}%
- \aftergroup\endinput
- \fi
- \fi
-\endgroup%
-% \end{macrocode}
-% Package identification:
-% \begin{macrocode}
-\begingroup\catcode61\catcode48\catcode32=10\relax%
- \catcode13=5 % ^^M
- \endlinechar=13 %
- \catcode35=6 % #
- \catcode39=12 % '
- \catcode40=12 % (
- \catcode41=12 % )
- \catcode44=12 % ,
- \catcode45=12 % -
- \catcode46=12 % .
- \catcode47=12 % /
- \catcode58=12 % :
- \catcode64=11 % @
- \catcode91=12 % [
- \catcode93=12 % ]
- \catcode123=1 % {
- \catcode125=2 % }
- \expandafter\ifx\csname ProvidesPackage\endcsname\relax
- \def\x#1#2#3[#4]{\endgroup
- \immediate\write-1{Package: #3 #4}%
- \xdef#1{#4}%
- }%
- \else
- \def\x#1#2[#3]{\endgroup
- #2[{#3}]%
- \ifx#1\@undefined
- \xdef#1{#3}%
- \fi
- \ifx#1\relax
- \xdef#1{#3}%
- \fi
- }%
- \fi
-\expandafter\x\csname ver@alphalph.sty\endcsname
-\ProvidesPackage{alphalph}%
- [2016/05/16 v2.5 Convert numbers to letters (HO)]%
-% \end{macrocode}
-%
-% \subsection{Catcodes}
-%
-% \begin{macrocode}
-\begingroup\catcode61\catcode48\catcode32=10\relax%
- \catcode13=5 % ^^M
- \endlinechar=13 %
- \catcode123=1 % {
- \catcode125=2 % }
- \catcode64=11 % @
- \def\x{\endgroup
- \expandafter\edef\csname AlPh@AtEnd\endcsname{%
- \endlinechar=\the\endlinechar\relax
- \catcode13=\the\catcode13\relax
- \catcode32=\the\catcode32\relax
- \catcode35=\the\catcode35\relax
- \catcode61=\the\catcode61\relax
- \catcode64=\the\catcode64\relax
- \catcode123=\the\catcode123\relax
- \catcode125=\the\catcode125\relax
- }%
- }%
-\x\catcode61\catcode48\catcode32=10\relax%
-\catcode13=5 % ^^M
-\endlinechar=13 %
-\catcode35=6 % #
-\catcode64=11 % @
-\catcode123=1 % {
-\catcode125=2 % }
-\def\TMP@EnsureCode#1#2{%
- \edef\AlPh@AtEnd{%
- \AlPh@AtEnd
- \catcode#1=\the\catcode#1\relax
- }%
- \catcode#1=#2\relax
-}
-\TMP@EnsureCode{33}{12}% !
-\TMP@EnsureCode{39}{12}% '
-\TMP@EnsureCode{40}{12}% (
-\TMP@EnsureCode{41}{12}% )
-\TMP@EnsureCode{43}{12}% +
-\TMP@EnsureCode{44}{12}% ,
-\TMP@EnsureCode{46}{12}% .
-\TMP@EnsureCode{47}{12}% /
-\TMP@EnsureCode{59}{12}% ;
-\TMP@EnsureCode{60}{12}% <
-\TMP@EnsureCode{62}{12}% >
-\TMP@EnsureCode{91}{12}% [
-\TMP@EnsureCode{93}{12}% ]
-\TMP@EnsureCode{96}{12}% `
-\TMP@EnsureCode{124}{12}% |
-\edef\AlPh@AtEnd{\AlPh@AtEnd\noexpand\endinput}
-% \end{macrocode}
-%
-% \subsection{Package loading}
-%
-% \begin{macrocode}
-\begingroup\expandafter\expandafter\expandafter\endgroup
-\expandafter\ifx\csname RequirePackage\endcsname\relax
- \input infwarerr.sty\relax
- \input intcalc.sty\relax
-\else
- \RequirePackage{infwarerr}[2007/09/09]%
- \RequirePackage{intcalc}[2007/09/09]%
-\fi
-% \end{macrocode}
-%
-% \subsection{\hologo{eTeX} detection}
-%
-% \begin{macrocode}
-\begingroup\expandafter\expandafter\expandafter\endgroup
-\expandafter\ifx\csname numexpr\endcsname\relax
- \catcode124=9 % '!': ignore
- \catcode43=14 % '+': comment
-\else
- \catcode124=14 % '!': comment
- \catcode43=9 % '+': ignore
-\fi
-% \end{macrocode}
-%
-% \subsection{Help macros}
-%
-% \begin{macro}{\AlPh@Error}
-% \begin{macrocode}
-\def\AlPh@Error#1{%
- \begingroup
- \escapechar=92 % backslash
- \@PackageError{alphalph}{#1}\@ehc
- \endgroup
-}
-% \end{macrocode}
-% \end{macro}
-%
-% \begin{macro}{\AlPh@IfDefinable}
-% \begin{macrocode}
-\begingroup\expandafter\expandafter\expandafter\endgroup
-\expandafter\ifx\csname @ifdefinable\endcsname\relax
- \def\AlPh@IfDefinable#1#2{%
- \ifcase\ifx#1\@undefined\else\ifx#1\relax\else1\fi\fi0 %
- #2%
- \else
- \AlPh@Error{%
- Command \string#1 already defined%
- }%
- \fi
- }%
-% \end{macrocode}
-% \end{macro}
-% \begin{macrocode}
-\else
-% \end{macrocode}
-% \begin{macro}{\AlPh@IfDefinable}
-% \begin{macrocode}
- \let\AlPh@IfDefinable\@ifdefinable
-% \end{macrocode}
-% \end{macro}
-% \begin{macrocode}
-\fi
-% \end{macrocode}
-%
-% \begin{macro}{\@ReturnAfterElseFi}
-% \begin{macro}{\@ReturnAfterFi}
-% The following commands moves the `then' and `else' part respectively
-% behind the |\if|-construct. This prevents a too deep |\if|-nesting
-% and so a \hologo{TeX} capacity error because of a limited input stack size.
-% I use this trick in several packages, so I don't prefix these internal
-% commands in order not to have the same macros with different names.
-% (It saves memory.)
-% \begin{macrocode}
-\long\def\@ReturnAfterElseFi#1\else#2\fi{\fi#1}
-\long\def\@ReturnAfterFi#1\fi{\fi#1}
-% \end{macrocode}
-% \end{macro}
-% \end{macro}
-%
-% \begin{macro}{\@gobblefour}
-% \Hologo{LaTeX} defines commands for eating arguments.
-% Define \cs{@gobblefour} if it is not defined (\hologo{plainTeX}).
-% \begin{macrocode}
-\expandafter\ifx\csname @gobblefour\endcsname\relax
- \long\def\@gobblefour#1#2#3#4{}%
-\fi
-% \end{macrocode}
-% \end{macro}
-%
-% \begin{macro}{AlPh@IfOptArg}
-% \begin{macrocode}
-\begingroup\expandafter\expandafter\expandafter\endgroup
-\expandafter\ifx\csname kernel@ifnextchar\endcsname\relax
- \begingroup\expandafter\expandafter\expandafter\endgroup
- \expandafter\ifx\csname @ifnextchar\endcsname\relax
- \def\AlPh@IfOptArg#1#2{%
- \def\AlPh@TempA{#1}%
- \def\AlPh@TempB{#2}%
- \futurelet\AlPh@Token\AlPh@IfOptArgNext
- }%
- \let\AlPh@BracketLeft=[%]
- \def\AlPh@IfOptArgNext{%
- \ifx\AlPh@Token\AlPh@BracketLeft
- \expandafter\AlPh@TempA
- \else
- \expandafter\AlPh@TempB
- \fi
- }%
- \else
- \def\AlPh@IfOptArg{\@ifnextchar[}%]
- \fi
-\else
- \def\AlPh@IfOptArg{\kernel@ifnextchar[}%]
-\fi
-% \end{macrocode}
-% \end{macro}
-%
-% \subsection{Symbol provider}
-%
-% \subsubsection{Alphabet}
-%
-% The output of \cs{alphalph} and \cs{AlphAlph} should be
-% usable as part of command names (see \cs{@namedef}, \cs{csname}, \dots).
-% Unhappily some languages of package \xpackage{babel}
-% redefine \hologo{LaTeX}'s \cs{@alph} and \cs{@Alph} in a manner that
-% they cannot be used in expandable context any more.
-% Therefore package \xpackage{alphalph} provides its own
-% commands.
-%
-% \begin{macro}{\alphalph@Alph}
-% \begin{macro}{\alphalph@alph}
-% The two commands \cmd{\AlPh@Alph} and \cmd{\AlPh@alph} convert a
-% number into a letter (uppercase and lowercase respectivly).
-% The character |@| is used as an error symbol,
-% if the number isn't in the range of 1 until 26.
-% Here we need no space after the number |#1|, because the error
-% symbol |@| for the zero case stops scanning the number.
-% This error symbol should not appear anywhere (except for bugs).
-% \begin{macrocode}
-\def\alphalph@Alph#1{%
- \ifcase#1%
- @%
- \or A\or B\or C\or D\or E\or F\or G\or H\or I\or J\or K\or L\or M%
- \or N\or O\or P\or Q\or R\or S\or T\or U\or V\or W\or X\or Y\or Z%
- \else
- \AlPh@ctrerr
- @%
- \fi
-}
-\def\alphalph@alph#1{%
- \ifcase#1%
- @%
- \or a\or b\or c\or d\or e\or f\or g\or h\or i\or j\or k\or l\or m%
- \or n\or o\or p\or q\or r\or s\or t\or u\or v\or w\or x\or y\or z%
- \else
- \AlPh@ctrerr
- @%
- \fi
-}
-% \end{macrocode}
-% \end{macro}
-% \end{macro}
-% \begin{macro}{\AlPh@ctrerr}
-% Macro \cs{AlPh@ctrerr} is used as hook for the algorithm
-% to get the available number of symbols.
-% \begin{macrocode}
-\def\AlPh@ctrerr{}
-% \end{macrocode}
-% \end{macro}
-%
-% \subsection{Finding number of symbols}
-%
-% \begin{macro}{\AlPh@GetNumberOfSymbols}
-% \noindent
-% |#1|: symbols provider
-% \begin{macrocode}
-\def\AlPh@GetNumberOfSymbols#1{%
- \AlPh@TestNumber1!{#1}%
- \ifAlPh@Unavailable
- \def\AlPh@Number{0}%
- \AlPh@Error{No symbols found}%
- \else
- \def\AlPh@Number{1}%
- \AlPh@ExpSearch2!{#1}%
- \fi
-}
-% \end{macrocode}
-% \end{macro}
-% \begin{macro}{\ifAlPh@Unavailable}
-% \begin{macrocode}
-\let\ifAlPh@Unavailable\iffalse
-\def\AlPh@Unavailabletrue{%
- \global\let\ifAlPh@Unavailable\iftrue
-}
-\def\AlPh@Unavailablefalse{%
- \global\let\ifAlPh@Unavailable\iffalse
-}
-% \end{macrocode}
-% \end{macro}
-% \begin{macro}{\AlPh@TestNumber}
-% |#1|: number to be tested\\
-% |#2|: symbols provider
-% \begin{macrocode}
-\def\AlPh@TestNumber#1!#2{%
- \AlPh@Unavailablefalse
- \begingroup
- \setbox0=\hbox{%
- \begingroup % color
- \let\@ctrerr\AlPh@Unavailabletrue
- \let\AlPh@ctrerr\AlPh@Unavailabletrue
- #2{#1}%
- \endgroup
- }%
- \ifdim\wd0=0pt %
- \AlPh@Unavailabletrue
- \fi
- \endgroup
-}
-% \end{macrocode}
-% \end{macro}
-% \begin{macro}{\AlPh@ExpSearch}
-% |#1|: number to be tested\\
-% |#2|: symbols provider
-% \begin{macrocode}
-\def\AlPh@ExpSearch#1!#2{%
- \let\AlPh@Next\relax
- \AlPh@TestNumber#1!{#2}%
- \ifAlPh@Unavailable
- \expandafter\AlPh@BinSearch\AlPh@Number!#1!{#2}%
- \else
- \def\AlPh@Number{#1}%
- \ifnum#1>1073741823 %
- \AlPh@TestNumber2147483647!{#2}%
- \ifAlPh@Unavailable
- \AlPh@BinSearch#1!2147483647!{#2}%
- \else
- \def\AlPh@Number{0}%
- \AlPh@Error{%
- Maximal symbol number not found%
- }%
- \fi
- \else
- \def\AlPh@Next{%
- \expandafter\AlPh@ExpSearch\number\intcalcShl{#1}!{#2}%
- }%
- \fi
- \fi
- \AlPh@Next
-}
-% \end{macrocode}
-% \end{macro}
-% \begin{macro}{\AlPh@BinSearch}
-% |#1|: available number\\
-% |#2|: unavailable number, |#2| $>$ |#1|\\
-% |#3|: symbols provider
-% \begin{macrocode}
-\def\AlPh@BinSearch#1!#2!#3{%
- \expandafter\AlPh@ProcessBinSearch
- \number\intcalcShr{\intcalcAdd{#1}{#2}}!%
- #1!#2!{#3}%
-}
-% \end{macrocode}
-% \end{macro}
-% \begin{macro}{\AlPh@ProcessBinSearch}
-% |#1|: number to be tested, |#2| $\leq$ |#1| $\leq$ |#3|\\
-% |#2|: available number\\
-% |#3|: unavailable number\\
-% |#4|: symbols provider
-% \begin{macrocode}
-\def\AlPh@ProcessBinSearch#1!#2!#3!#4{%
- \let\AlPh@Next\relax
- \ifnum#1>#2 %
- \ifnum#1<#3 %
- \AlPh@TestNumber#1!{#4}%
- \ifAlPh@Unavailable
- \def\AlPh@Next{%
- \AlPh@BinSearch#2!#1!{#4}%
- }%
- \else
- \def\AlPh@Next{%
- \AlPh@BinSearch#1!#3!{#4}%
- }%
- \fi
- \else
- \def\AlPh@Number{#2}%
- \fi
- \else
- \def\AlPh@Number{#2}%
- \fi
- \AlPh@Next
-}
-% \end{macrocode}
-% \end{macro}
-%
-% \subsection{Methods}
-%
-% The names of method macros start with \cs{AlPh@Method}.
-% These macros do the main job in converting a number to
-% its representation.
-% A method command is called with three arguments.
-% The first argument is the number of symbols. The
-% second argument is the basic macro for converting
-% a number with limited number range. The last parameter
-% is the number that needs converting.
-%
-% \subsubsection{Common methods}
-%
-% \begin{macro}{\AlPh@CheckPositive}
-% \noindent
-% |#1|: number to be checked
-% |#2|: continuation macro\\
-% |#3|: number of symbols (hidden here)\\
-% |#4|: symbol provider (hidden here)
-% \begin{macrocode}
-\def\AlPh@CheckPositive#1!#2{%
- \ifnum#1<1 %
- \expandafter\@gobblefour
- \fi
- #2{#1}%
-}
-% \end{macrocode}
-% \end{macro}
-%
-% \subsubsection{Method `alph'}
-%
-% \begin{macro}{\AlPh@Method@alph}
-% \noindent
-% |#1|: number of symbols\\
-% |#2|: symbols provider\\
-% |#3|: number to be converted
-% \begin{macrocode}
-\def\AlPh@Method@alph#1#2#3{%
- \expandafter\AlPh@CheckPositive
-| \number#3!%
-+ \the\numexpr#3!%
- \AlPh@ProcessAlph
- {#1}{#2}%
-}
-% \end{macrocode}
-% \end{macro}
-% \begin{macro}{\AlPh@ProcessAlph}
-% |#1|: current number\\
-% |#2|: number of symbols\\
-% |#3|: symbols provider
-% \begin{macrocode}
-\def\AlPh@ProcessAlph#1#2#3{%
- \ifnum#1>#2 %
- \@ReturnAfterElseFi{%
- \expandafter\AlPh@StepAlph\number
- \intcalcInc{%
- \intcalcMod{\intcalcDec{#1}}{#2}%
- }%
- \expandafter!\number
- \intcalcDiv{\intcalcDec{#1}}{#2}%
- !{#2}{#3}%
- }%
- \else
- \@ReturnAfterFi{%
- #3{#1}%
- }%
- \fi
-}
-% \end{macrocode}
-% \end{macro}
-% \begin{macro}{\AlPh@StepAlph}
-% |#1|: current last digit\\
-% |#2|: new current number\\
-% |#3|: number of symbols\\
-% |#4|: symbols provider
-% \begin{macrocode}
-\def\AlPh@StepAlph#1!#2!#3#4{%
- \AlPh@ProcessAlph{#2}{#3}{#4}%
- #4{#1}%
-}
-% \end{macrocode}
-% \end{macro}
-%
-% \subsubsection{Method `wrap'}
-%
-% \begin{macro}{\AlPh@Method@wrap}
-% \noindent
-% |#1|: number of symbols\\
-% |#2|: symbols provider\\
-% |#3|: number to be converted
-% \begin{macrocode}
-\def\AlPh@Method@wrap#1#2#3{%
- \expandafter\AlPh@CheckPositive
-| \number#3!%
-+ \the\numexpr#3!%
- \AlPh@ProcessWrap
- {#1}{#2}%
-}
-% \end{macrocode}
-% \end{macro}
-%
-% \begin{macro}{\AlPh@ProcessWrap}
-% |#1|: number to be converted\\
-% |#2|: number of symbols\\
-% |#3|: symbols provider
-% \begin{macrocode}
-\def\AlPh@ProcessWrap#1#2#3{%
- \ifnum#1>#2 %
- \@ReturnAfterElseFi{%
- \expandafter\AlPh@StepWrap\number
- \intcalcInc{\intcalcMod{\intcalcDec{#1}}{#2}}%
- !{#3}%
- }%
- \else
- \@ReturnAfterFi{%
- #3{#1}%
- }%
- \fi
-}
-% \end{macrocode}
-% \end{macro}
-% \begin{macro}{\AlPh@StepWrap}
-% |#1|: final number\\
-% |#2|: symbols provider
-% \begin{macrocode}
-\def\AlPh@StepWrap#1!#2{%
- #2{#1}%
-}
-% \end{macrocode}
-% \end{macro}
-%
-% \subsubsection{Method `mult'}
-%
-% After the number of symbols is exhausted,
-% repetitions of the symbol are used.
-% \begin{gather*}
-% x \Def \text{number to be converted}\\
-% n \Def \text{number of symbols}\\
-% r \Def \text{repetition length}\\
-% s \Def \text{symbol slot}\\
-% r = ((x - 1) \div n) + 1\\
-% s = ((x - 1) \mod n) + 1
-% \end{gather*}
-% \begin{macro}{\AlPh@Method@mult}
-% \noindent
-% |#1|: number of symbols\\
-% |#2|: symbols provider\\
-% |#3|: number to be converted
-% \begin{macrocode}
-\def\AlPh@Method@mult#1#2#3{%
- \expandafter\AlPh@CheckPositive
-| \number#3!%
-+ \the\numexpr#3!%
- \AlPh@ProcessMult
- {#1}{#2}%
-}
-% \end{macrocode}
-% \end{macro}
-%
-% \begin{macro}{\AlPh@ProcessMult}
-% |#1|: number to be converted\\
-% |#2|: number of symbols\\
-% |#3|: symbols provider
-% \begin{macrocode}
-\def\AlPh@ProcessMult#1#2#3{%
- \ifnum#1>#2 %
- \@ReturnAfterElseFi{%
- \expandafter\AlPh@StepMult\romannumeral
- \intcalcInc{\intcalcDiv{\intcalcDec{#1}}{#2}}%
- 000%
- \expandafter!\number
- \intcalcInc{\intcalcMod{\intcalcDec{#1}}{#2}}%
- !{#3}%
- }%
- \else
- \@ReturnAfterFi{%
- #3{#1}%
- }%
- \fi
-}
-% \end{macrocode}
-% \end{macro}
-% \begin{macro}{\AlPh@StepMult}
-% |#1#2|: repetitions coded as list of character `m'\\
-% |#3|: symbol slot\\
-% |#4|: symbols provider
-% \begin{macrocode}
-\def\AlPh@StepMult#1#2!#3!#4{%
- \ifx\\#2\\%
- \else
- \@ReturnAfterFi{%
- \AlPh@StepMult#2!#3!{#4}%
- }%
- \fi
- #4{#3}%
-}
-% \end{macrocode}
-% \end{macro}
-%
-% \subsection{User interface}
-%
-% \begin{macro}{\newalphalph}
-% Macro \cs{newalphalph} had three arguments in versions below 2.0.
-% For the new method argument we use an optional argument an first
-% position.\\
-% |#1|: cmd\\
-% |[#2]|: method name: |alph| (default), |wrap|, |mult|\\ % hash-ok
-% |#3|: symbols provider\\
-% |#4|: number of symbols
-% \begin{macrocode}
-\AlPh@IfDefinable\newalphalph{%
- \def\newalphalph#1{%
- \AlPh@IfOptArg{%
- \AlPh@newalphalph{#1}%
- }{%
- \AlPh@newalphalph{#1}[alph]%
- }%
- }%
-}
-% \end{macrocode}
-% \end{macro}
-% \begin{macro}{\AlPh@newalphalph}
-% |#1|: cmd
-% |#2|: method name\\
-% |#3|: symbols provider\\
-% |#4|: number of symbols
-% \begin{macrocode}
-\def\AlPh@newalphalph#1[#2]#3#4{%
- \begingroup\expandafter\expandafter\expandafter\endgroup
- \expandafter\ifx\csname AlPh@Method@#2\endcsname\relax
- \AlPh@Error{%
- Unknown method %
-| `#2'%
-+ `\detokenize{#2}'%
- }%
- \else
- \ifx\\#4\\%
- \AlPh@GetNumberOfSymbols{#3}%
- \ifcase\AlPh@Number
- \else
- \begingroup
- \escapechar=92 % backslash
- \@PackageInfo{alphalph}{%
- Number of symbols for \string#1 is \AlPh@Number
- }%
- \endgroup
- \expandafter\AlPh@NewAlphAlph
- \csname AlPh@Method@#2\expandafter\endcsname
- \AlPh@Number!{#1}{#3}%
- \fi
- \else
- \expandafter\AlPh@NewAlphAlph
- \csname AlPh@Method@#2\expandafter\endcsname
-| \number#4!%
-+ \the\numexpr#4!%
- {#1}{#3}%
- \fi
- \fi
-}%
-% \end{macrocode}
-% \end{macro}
-% \begin{macro}{\AlPh@NewAlphAlph}
-% |#1|: method macro\\
-% |#2|: number of symbols\\
-% |#3|: cmd\\
-% |#4|: symbols provider
-% \begin{macrocode}
-\def\AlPh@NewAlphAlph#1#2!#3#4{%
- \AlPh@IfDefinable#3{%
- \ifnum#2>0 %
- \def#3{#1{#2}{#4}}%
- \else
- \AlPh@Error{%
- Definition of \string#3 failed,\MessageBreak
- because number of symbols (#2) is not positive%
- }%
- \fi
- }%
-}
-% \end{macrocode}
-% \end{macro}
-%
-% \begin{macro}{\AlphAlph}
-% \begin{macrocode}
-\newalphalph\AlphAlph\alphalph@Alph{26}
-% \end{macrocode}
-% \end{macro}
-% \begin{macro}{\alphalph}
-% \begin{macrocode}
-\newalphalph\alphalph\alphalph@alph{26}
-% \end{macrocode}
-% \end{macro}
-%
-% \begin{macrocode}
-\AlPh@AtEnd%
-%</package>
-% \end{macrocode}
-%
-% \section{Installation}
-%
-% \subsection{Download}
-%
-% \paragraph{Package.} This package is available on
-% CTAN\footnote{\CTANpkg{alphalph}}:
-% \begin{description}
-% \item[\CTAN{macros/latex/contrib/oberdiek/alphalph.dtx}] The source file.
-% \item[\CTAN{macros/latex/contrib/oberdiek/alphalph.pdf}] Documentation.
-% \end{description}
-%
-%
-% \paragraph{Bundle.} All the packages of the bundle `oberdiek'
-% are also available in a TDS compliant ZIP archive. There
-% the packages are already unpacked and the documentation files
-% are generated. The files and directories obey the TDS standard.
-% \begin{description}
-% \item[\CTANinstall{install/macros/latex/contrib/oberdiek.tds.zip}]
-% \end{description}
-% \emph{TDS} refers to the standard ``A Directory Structure
-% for \TeX\ Files'' (\CTANpkg{tds}). Directories
-% with \xfile{texmf} in their name are usually organized this way.
-%
-% \subsection{Bundle installation}
-%
-% \paragraph{Unpacking.} Unpack the \xfile{oberdiek.tds.zip} in the
-% TDS tree (also known as \xfile{texmf} tree) of your choice.
-% Example (linux):
-% \begin{quote}
-% |unzip oberdiek.tds.zip -d ~/texmf|
-% \end{quote}
-%
-% \subsection{Package installation}
-%
-% \paragraph{Unpacking.} The \xfile{.dtx} file is a self-extracting
-% \docstrip\ archive. The files are extracted by running the
-% \xfile{.dtx} through \plainTeX:
-% \begin{quote}
-% \verb|tex alphalph.dtx|
-% \end{quote}
-%
-% \paragraph{TDS.} Now the different files must be moved into
-% the different directories in your installation TDS tree
-% (also known as \xfile{texmf} tree):
-% \begin{quote}
-% \def\t{^^A
-% \begin{tabular}{@{}>{\ttfamily}l@{ $\rightarrow$ }>{\ttfamily}l@{}}
-% alphalph.sty & tex/generic/oberdiek/alphalph.sty\\
-% alphalph.pdf & doc/latex/oberdiek/alphalph.pdf\\
-% alphalph.dtx & source/latex/oberdiek/alphalph.dtx\\
-% \end{tabular}^^A
-% }^^A
-% \sbox0{\t}^^A
-% \ifdim\wd0>\linewidth
-% \begingroup
-% \advance\linewidth by\leftmargin
-% \advance\linewidth by\rightmargin
-% \edef\x{\endgroup
-% \def\noexpand\lw{\the\linewidth}^^A
-% }\x
-% \def\lwbox{^^A
-% \leavevmode
-% \hbox to \linewidth{^^A
-% \kern-\leftmargin\relax
-% \hss
-% \usebox0
-% \hss
-% \kern-\rightmargin\relax
-% }^^A
-% }^^A
-% \ifdim\wd0>\lw
-% \sbox0{\small\t}^^A
-% \ifdim\wd0>\linewidth
-% \ifdim\wd0>\lw
-% \sbox0{\footnotesize\t}^^A
-% \ifdim\wd0>\linewidth
-% \ifdim\wd0>\lw
-% \sbox0{\scriptsize\t}^^A
-% \ifdim\wd0>\linewidth
-% \ifdim\wd0>\lw
-% \sbox0{\tiny\t}^^A
-% \ifdim\wd0>\linewidth
-% \lwbox
-% \else
-% \usebox0
-% \fi
-% \else
-% \lwbox
-% \fi
-% \else
-% \usebox0
-% \fi
-% \else
-% \lwbox
-% \fi
-% \else
-% \usebox0
-% \fi
-% \else
-% \lwbox
-% \fi
-% \else
-% \usebox0
-% \fi
-% \else
-% \lwbox
-% \fi
-% \else
-% \usebox0
-% \fi
-% \end{quote}
-% If you have a \xfile{docstrip.cfg} that configures and enables \docstrip's
-% TDS installing feature, then some files can already be in the right
-% place, see the documentation of \docstrip.
-%
-% \subsection{Refresh file name databases}
-%
-% If your \TeX~distribution
-% (\TeX\,Live, \mikTeX, \dots) relies on file name databases, you must refresh
-% these. For example, \TeX\,Live\ users run \verb|texhash| or
-% \verb|mktexlsr|.
-%
-% \subsection{Some details for the interested}
-%
-% \paragraph{Unpacking with \LaTeX.}
-% The \xfile{.dtx} chooses its action depending on the format:
-% \begin{description}
-% \item[\plainTeX:] Run \docstrip\ and extract the files.
-% \item[\LaTeX:] Generate the documentation.
-% \end{description}
-% If you insist on using \LaTeX\ for \docstrip\ (really,
-% \docstrip\ does not need \LaTeX), then inform the autodetect routine
-% about your intention:
-% \begin{quote}
-% \verb|latex \let\install=y\input{alphalph.dtx}|
-% \end{quote}
-% Do not forget to quote the argument according to the demands
-% of your shell.
-%
-% \paragraph{Generating the documentation.}
-% You can use both the \xfile{.dtx} or the \xfile{.drv} to generate
-% the documentation. The process can be configured by the
-% configuration file \xfile{ltxdoc.cfg}. For instance, put this
-% line into this file, if you want to have A4 as paper format:
-% \begin{quote}
-% \verb|\PassOptionsToClass{a4paper}{article}|
-% \end{quote}
-% An example follows how to generate the
-% documentation with pdf\LaTeX:
-% \begin{quote}
-%\begin{verbatim}
-%pdflatex alphalph.dtx
-%makeindex -s gind.ist alphalph.idx
-%pdflatex alphalph.dtx
-%makeindex -s gind.ist alphalph.idx
-%pdflatex alphalph.dtx
-%\end{verbatim}
-% \end{quote}
-%
-% \begin{History}
-% \begin{Version}{1999/03/19 v0.1}
-% \item
-% The first version was built as a response to a
-% \URL{\link{question}}^^A
-% {https://groups.google.com/group/comp.text.tex/msg/17a74cd721641038}^^A
-% of \NameEmail{Will Douglas}{william.douglas@wolfson.ox.ac.uk}
-% and the
-% \URL{\link{request}}^^A
-% {https://groups.google.com/group/comp.text.tex/msg/8f9768825640315f}^^A
-% of \NameEmail{Donald Arsenau}{asnd@reg.triumf.ca},
-% published in the newsgroup
-% \href{news:comp.text.tex}{comp.text.tex}:
-% \URL{``\link{Re: alph counters \textgreater\ 26}''}^^A
-% {https://groups.google.com/group/comp.text.tex/msg/cec563eef8bf65d0}
-% \item
-% Copyright: LPPL (\CTAN{macros/latex/base/lppl.txt})
-% \end{Version}
-% \begin{Version}{1999/04/12 v1.0}
-% \item
-% Documentation added in dtx format.
-% \item
-% \hologo{eTeX} support added.
-% \end{Version}
-% \begin{Version}{1999/04/13 v1.1}
-% \item
-% Minor documentation change.
-% \item
-% First CTAN release.
-% \end{Version}
-% \begin{Version}{1999/06/26 v1.2}
-% \item
-% First generic code about \cmd{\ProvidesPackage} improved.
-% \item
-% Documentation: Installation part revised.
-% \end{Version}
-% \begin{Version}{2006/02/20 v1.3}
-% \item
-% Reload check (for \hologo{plainTeX})
-% \item
-% New DTX framework.
-% \item
-% LPPL 1.3
-% \end{Version}
-% \begin{Version}{2006/05/30 v1.4}
-% \item
-% \cs{newalphalph} added.
-% \end{Version}
-% \begin{Version}{2007/04/11 v1.5}
-% \item
-% Line ends sanitized.
-% \end{Version}
-% \begin{Version}{2007/09/09 v2.0}
-% \item
-% New implementation that uses package \cs{intcalc}.
-% This removes the dependency on \hologo{eTeX}.
-% \item
-% \cs{newalphalph} is extended to support new methods `wrap' and 'multi'.
-% \item
-% Documentation rewritten.
-% \end{Version}
-% \begin{Version}{2008/08/11 v2.1}
-% \item
-% Code is not changed.
-% \item
-% URLs updated from \texttt{www.dejanews.com}
-% to \texttt{groups.google.com}.
-% \end{Version}
-% \begin{Version}{2010/03/01 v2.2}
-% \item
-% Compatibility with \hologo{iniTeX}.
-% \end{Version}
-% \begin{Version}{2010/04/18 v2.3}
-% \item
-% Documentation fixes (Martin M\"unch).
-% \end{Version}
-% \begin{Version}{2011/05/13 v2.4}
-% \item
-% Documentation fixes (Jim Diamond) and using package
-% \xpackage{hologo} for the documentation.
-% \item
-% Catalogue file added.
-% \end{Version}
-% \begin{Version}{2016/05/16 v2.5}
-% \item
-% Documentation updates.
-% \end{Version}
-% \end{History}
-%
-% \PrintIndex
-%
-% \Finale
-\endinput