+% \iffalse
+%<*driver>
+\ProvidesFile{envlab.drv}
+%</driver>
+%<*driver|package|cfg>
+%<+package>\ProvidesPackage{envlab}
+%<+cfg>\ProvidesFile{envlab.cfg}
+[1997/07/16 v1.2 Envelopes and Labels]
+%</driver|package|cfg>
+%<*driver|package>
+%%
+%% Copyright Boris Veytsman 1996, 1997
+%%
+%</driver|package>
+%<*driver|package|cfg>
+% \fi
+%%
+% \CheckSum{1378}
+%% \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
+%% Lower-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
+%% Digits \0\1\2\3\4\5\6\7\8\9
+%% Exclamation \! Double quote \" Hash (number) \#
+%% Dollar \$ Percent \% Ampersand \&
+%% Acute accent \' Left paren \( Right paren \)
+%% Asterisk \* Plus \+ Comma \,
+%% Minus \- Point \. Solidus \/
+%% Colon \: Semicolon \; Less than \<
+%% Equals \= Greater than \> Question mark \?
+%% Commercial at \@ Left bracket \[ Backslash \\
+%% Right bracket \] Circumflex \^ Underscore \_
+%% Grave accent \` Left brace \{ Vertical bar \|
+%% Right brace \} Tilde \~}
+% \iffalse
+%</driver|package|cfg>
+%
+% \section{Documentation driver}
+%<*driver>
+% Nothing interesting here\dots
+% \begin{macrocode}
+\documentclass{ltxdoc}
+\DoNotIndex{\@Alph,\@alph,\@arabic,\@badmath}
+\DoNotIndex{\@centercr}
+\DoNotIndex{\@empty,\@ignoretrue}
+\DoNotIndex{\@ixpt}
+\DoNotIndex{\@M,\@minus,\@ne,\@plus}
+\DoNotIndex{\\,\addtolength}
+\DoNotIndex{\advance}
+\DoNotIndex{\ast,\begin,\begingroup,\bfseries,\bgroup,\box}
+\DoNotIndex{\bullet}
+\DoNotIndex{\cdot,\cr,\day,\DeclareOption}
+\DoNotIndex{\def,\DocInput,\documentclass}
+\DoNotIndex{\DoNotIndex,\egroup,\ifx,\else,\fi,\endtrivlist}
+\DoNotIndex{\EnableCrossrefs,\end,\end@dblfloat,\end@float,\endgroup}
+\DoNotIndex{\endlist,\everycr,\ExecuteOptions}
+\DoNotIndex{\filedate,\filename,\fileversion}
+\DoNotIndex{\global,\halign,\hangindent,\hbox,\hfil,\hfill,\hrule}
+\DoNotIndex{\hsize,\hskip,\hspace,\hss,\ifcase,\or,\fi}
+\DoNotIndex{\ifvmode,\fi,\ifnum,\fi,\input}
+\DoNotIndex{\kern,\leavevmode,\let,\leftmark}
+\DoNotIndex{\list,\llap,\long,\m@ne,\m@th,\mark}
+\DoNotIndex{\month,\newcommand,\newcounter,\newenvironment}
+\DoNotIndex{\NeedsTeXFormat,\newdimen}
+\DoNotIndex{\newpage,\nobreak,\noindent,\number}
+\DoNotIndex{\p@}
+\DoNotIndex{\pagestyle,\par}
+\DoNotIndex{\penalty,\PrintChanges,\PrintIndex,\ProcessOptions}
+\DoNotIndex{\protect,\ProvidesClass,\raggedbottom,\raggedright}
+\DoNotIndex{\refstepcounter,\relax,\renewcommand,\reset@font}
+\DoNotIndex{\rightmargin,\rlap,\rmfamily}
+\DoNotIndex{\setbox,\setcounter,\setlength}
+\DoNotIndex{\skip,\slshape,\space}
+\DoNotIndex{\trivlist,\typeout,\tw@}
+\DoNotIndex{\vskip,\vspace,\year,\z@}
+%
+\DoNotIndex{\@ptsize,\@sptoken,\addtocounter,\afterassignment}
+\DoNotIndex{\AtEndOfPackage,\baselineskip,\boxmaxdepth,\clearpage}
+\DoNotIndex{\clubpenalty,\csname,\CurrentOption,\DeclareRobustCommand}
+\DoNotIndex{\eject,\endcsname,\evensidemargin,\expandafter}
+\DoNotIndex{\footnotesize,\footskip,\fromaddress,\futurelet}
+\DoNotIndex{\headheight,\headsep,\hfuzz,\ignorespaces}
+\DoNotIndex{\InputIfFileExists,\large,\lineskip,\loop}
+\DoNotIndex{\MakeUppercase,\MessageBreak,\mbox,\multiply}
+\DoNotIndex{\newcount,\newif,\newlength,\newtoks,\nolinebreak}
+\DoNotIndex{\nopagebreak,\normalfont,\normalsize,\null,\newline}
+\DoNotIndex{\oddsidemargin,\PackageError,\PackageInfo}
+\DoNotIndex{\paperheight,\paperwidth,\parbox,\parindent}
+\DoNotIndex{\PassOptionsToPackage,\ProvidesPackage,\RequirePackage}
+\DoNotIndex{\rule,\selectfont,\sffamily,\sloppy,\small,\spaceskip}
+\DoNotIndex{\stepcounter,\textheight,\textwidth,\the,\topmargin}
+\DoNotIndex{\unhbox,\voidb@x,\vsize,\vfuzz,\widowpenalty,\xspaceskip}
+\DoNotIndex{\AtBeginDocument,\AtEndDocument}
+\usepackage{enumerate}
+\CodelineIndex
+\RecordChanges
+\EnableCrossrefs
+\begin{document}
+ \DocInput{envlab.dtx}
+\end{document}
+% \end{macrocode}
+%</driver>
+% \fi
+%
+% \changes{v0.9}{1996/05/31}{Beta version}
+% \changes{v0.91}{1996/05/31}{Added new option---"alwaysbarcodes"}
+% \changes{v1.0}{1996/06/09}{First released version}
+% \changes{v1.1}{1996/07/08}{Fixed typos in "elold.ins"}
+% \changes{v1.1}{1996/07/08}{Updated User Guide}
+% \changes{v1.2}{1996/07/10}{Changed envlab.ins: made it parallel.}
+%% \changes{v1.2}{1996/07/16}{Updated User Guide}
+%
+% \newcommand{\EL}{\textsl{EnvLab}}
+%
+%
+% \GetFileInfo{envlab.drv}
+%
+% \title{Printing Envelopes and Labels in \LaTeXe: \EL\ Package
+% \thanks{This file
+% has version number \fileversion, last
+% revised \filedate.}
+% \thanks{\copyright Boris Veytsman, 1996, 1997}
+% }
+% \author{Boris Veytsman}
+% \date{\filedate}
+% \maketitle
+%
+% \tableofcontents
+%
+%
+% \section{Introduction}
+% \MakeShortVerb{\"}
+% The standard "\makelabels" command in the \LaTeXe\ "letter.cls"
+% documentclass typesets labels on Avery 5352 sheets. A typical user
+% may want more. \EL\ redefines "\makelabels" in\footnote{hopefully}
+% a more useful and customizable way
+%
+% The detailed usage of the package is described in the file
+% "elguide.tex". Here we just comment the macros.
+%
+% \StopEventually
+%
+% \section{Identification}
+%
+% First, we must say ``Hello world.''
+% \begin{macrocode}
+%<*package>
+\NeedsTeXFormat{LaTeX2e}
+% \end{macrocode}
+%
+% \begin{macro}{\envlab@ok}
+% \begin{macro}{\envlab@oops}
+% \changes{v1.2}{1997/07/10}{Used \cs{@ifundefined} instead of direct check}
+% Now let us check whether we in the letter documentclass. Actually we
+% will accept any class that has "\makelabels" defined (custom letter
+% classes, etc.)
+% \begin{macrocode}
+\def\envlab@oops{%
+ \PackageError{envlab}%
+ {Envlab is used outside of \MessageBreak%
+ a letter-compatible documentclass}%
+ {You are trying to use Envelopes & Labels\MessageBreak%
+ package, but your documentclass does not\MessageBreak%
+ understand address formatting commands.\MessageBreak%
+ Try standard document class letter\MessageBreak}}
+\def\envlab@ok{%
+ \PackageInfo{envlab}%
+ {Envelopes & Labels package: found makelabels...\MessageBreak%
+ Seems everything is OK. Good luck.}}
+\@ifundefined{makelabels}{\envlab@oops}{\envlab@ok}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+% \section{Preliminary code}
+%
+% \subsection{Switches, etc.}
+%
+%
+% \DescribeMacro{\if@envelope}
+% \DescribeMacro{\if@biglabel}
+% \changes{v1.2}{1997/07/13}{Added Big Labels---thanks to Genick
+% Bar-Meir, "meyerson@msi.umn.edu"}
+% There are three kinds of things we can print: envelopes (default)
+% labels and big labels The differences are summarized in
+% Table~\ref{tab:diffs}.
+% \begin{table}
+% \begin{center}
+% \begin{tabular}{cccc}
+% \hline
+% Media & Number per page & Rotation & Return address \\
+% \hline
+% Envelopes & One & Settable & Yes\\
+% Labels & Several & Not rotated & No\\
+% Big Labels & Several & Not rotated & Yes\\
+% \hline
+% \end{tabular}
+% \end{center}
+% \caption{Differences between envelopes, labels and big labels}
+% \label{tab:diffs}
+% \end{table}
+%
+% \begin{macrocode}
+\newif\if@envelope
+\@envelopetrue
+\newif\if@biglabel
+\@biglabelfalse
+% \end{macrocode}
+%
+% \DescribeMacro{\if@rotateenvelopes}
+% \DescribeMacro{\if@printreturnaddress}
+% Now we must determine whether we want to rotate envelopes and
+% whether to include return address (both yes by default).
+% \begin{macrocode}
+\newif\if@rotateenvelopes
+\@rotateenvelopestrue
+\newif\if@printreturnaddress
+\@printreturnaddresstrue
+% \end{macrocode}
+%
+% \DescribeMacro{\@envelopeposition}
+% Now let us decide how to print envelopes. They can be either centered
+% (default) \emph{or} shifted to the left or to the right of the paper
+% tray. The
+% counter "\@envelopeposition" can be, correspondingly, either 0 or 1
+% or 2. The value of
+% 3 corresponds to the ``custom placing'', when the user sets
+% "\EnvelopeLeftMargin" manually.
+%
+% \begin{macrocode}
+\newcount\@envelopeposition
+\@envelopeposition=0\relax
+% \end{macrocode}
+%
+% \begin{macro}{\if@pswait}
+% \changes{v1.1}{1996/07/08}{Added \cs{if@pswait}}
+% \begin{macro}{\if@psautotray}
+% \changes{v1.1}{1997/07/13}{Added \cs{if@psautotray}}
+% \begin{macro}{\PSEnvelopeTray}
+% \changes{v1.1}{1997/07/13}{Added \cs{PSEnvelopeTray}}
+% The switches "\if@pswait" and "\if@psautotray" control optional manual
+% feeding of envelopes and labels in \textsl{Postscript} printers
+% (see Section~\ref{sec:Print} for details). The register
+% "\PSEnvelopeTray" contains the name of the required tray.
+% \begin{macrocode}
+\newif\if@pswait
+\@pswaitfalse
+\newif\if@psautotray
+\@psautotrayfalse
+\newtoks\PSEnvelopeTray
+\PSEnvelopeTray={/otherenvelopetray }
+% \end{macrocode}
+%
+% \end{macro}
+% \end{macro}
+% \end{macro}
+%
+% \begin{macro}{\if@barcodes}
+% \begin{macro}{\if@alwaysbarcodes}
+% We can either print bar codes (default) or not. The second switch
+% forces to print barcodes even if they are not last in the address
+% (like "Pa 16801\\USA")
+% \begin{macrocode}
+\newif\if@barcodes
+\newif\if@alwaysbarcodes
+\@barcodestrue
+\@alwaysbarcodesfalse
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+%
+% \begin{macro}{\if@EL@redefine@opening}
+% \changes{v1.2}{1997/07/14}{Wrote new command}
+% Now let us decide whether to mess with the "\opening" command.
+% \begin{macrocode}
+\newif\if@EL@redefine@opening
+\@EL@redefine@openingfalse
+% \end{macrocode}
+% \end{macro}
+%
+%
+% \begin{macro}{\if@capitalizeaddress}
+% Also, we can either capitalize the address (default) or not.
+% \begin{macrocode}
+\newif\if@capitalizeaddress
+\@capitalizeaddresstrue
+% \end{macrocode}
+% \end{macro}
+%
+% \subsection{Lengths and numbers}
+%
+% We want all lengths to be user settable, so no "@" in the names.
+%
+%
+% \DescribeMacro{\EnvelopeWidth}
+% \DescribeMacro{\EnvelopeHeight}
+% \DescribeMacro{\EnvelopeTopMargin}
+% \DescribeMacro{\EnvelopeLeftMargin}
+% An envelope has four basic lengths.
+% The first two are self-evident. The third is the distance between the
+% edge of the paper and the leading edge of the envelope. All
+% pre-defined envelope sizes set this to zero. The fourth is the distance
+% between the left edge of the paper and the envelope. Its value depends
+% on the value of the "\@envelopeposition" variable. We will preset it to
+% zero
+% \begin{macrocode}
+\newlength{\EnvelopeWidth}
+\newlength{\EnvelopeHeight}
+\newlength{\EnvelopeTopMargin}
+\newlength{\EnvelopeLeftMargin}
+\setlength{\EnvelopeLeftMargin}{0pt}
+% \end{macrocode}
+%
+%
+% \DescribeMacro{\LabelWidth}
+% \DescribeMacro{\LabelHeight}
+% \DescribeMacro{\LabelTopMargin}
+% \DescribeMacro{\LabelLeftMargin}
+% \DescribeMacro{\LabelRightMargin}
+% A label has more parameters.
+% The first two are the same as for the envelopes. The next two define the
+% distances from the paper edges to the beginning of the labels. The
+% last one describes the distance between the labels.
+% \begin{macrocode}
+\newlength{\LabelWidth}
+\newlength{\LabelHeight}
+\newlength{\LabelTopMargin}
+\newlength{\LabelLeftMargin}
+\newlength{\LabelRightMargin}
+% \end{macrocode}
+%
+% \DescribeMacro{\c@LabelMaxCol}
+% \DescribeMacro{\c@LabelMaxRow}
+% The following numbers define, how many labels are in each row and how
+% many rows are on each page
+% \begin{macrocode}
+\newcounter{LabelMaxCol}
+\newcounter{LabelMaxRow}
+% \end{macrocode}
+%
+% The lengths above are \emph{external} parameters that determine an
+% envelope or a label. Now we will describe \emph{internal} lengths. We
+% define them here because the commands "\SetEnvelope" and "\SetLabel"
+% determine them basing on the given envelope or label type.
+%
+%
+% \DescribeMacro{\FromAddressTopMargin}
+% \DescribeMacro{\FromAddressLeftMargin}
+% \DescribeMacro{\FromAddressHeight}
+% \DescribeMacro{\FromAddressWidth}
+% \DescribeMacro{\ToAddressTopMargin}
+% \DescribeMacro{\ToAddressLeftMargin}
+% \DescribeMacro{\ToAddressWidth}
+% The following lengths are self-evident.
+% \begin{macrocode}
+\newlength{\FromAddressTopMargin}
+\newlength{\FromAddressLeftMargin}
+\newlength{\FromAddressHeight}
+\newlength{\FromAddressWidth}
+\newlength{\ToAddressTopMargin}
+\newlength{\ToAddressLeftMargin}
+\newlength{\ToAddressWidth}
+% \end{macrocode}
+%
+% \subsection{Main setting commands}
+%
+% OK, we are ready to set up envelopes and labels.
+%
+% \begin{macro}{\SetEnvelope}
+% \changes{v1.2}{1997/07/14}{Added \cs{@biglabelfalse}}
+% The command "\SetEnvelope" has three parameters: optional top Margin,
+% width and height of the envelope.
+% \begin{macrocode}
+\DeclareRobustCommand{\SetEnvelope}[3][0pt]{%
+ \@envelopetrue%
+ \@biglabelfalse%
+ \setlength{\EnvelopeTopMargin}{#1}%
+ \setlength{\EnvelopeWidth}{#2}%
+ \setlength{\EnvelopeHeight}{#3}%
+ \setlength{\FromAddressTopMargin}{0.5in}%
+ \setlength{\FromAddressLeftMargin}{0.5in}%
+ \setlength{\FromAddressHeight}{0.33\EnvelopeHeight}%
+ \setlength{\FromAddressWidth}{0.5\EnvelopeWidth}%
+ \setlength{\ToAddressTopMargin}{0.5in}%
+ \setlength{\ToAddressLeftMargin}{0.5in}%
+ \setlength{\ToAddressWidth}{3in}}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\SetLabel}
+% \changes{v1.2}{1997/07/14}{Added \cs{@biglabelfalse}}
+% The command "\SetLabel" has seven parameters: five lengths and two
+% numbers. All are mandatory:
+% \begin{macrocode}
+\DeclareRobustCommand{\SetLabel}[7]{%
+ \@envelopefalse%
+ \@biglabelfalse%
+ \setlength{\LabelWidth}{#1}%
+ \setlength{\LabelHeight}{#2}%
+ \setlength{\LabelTopMargin}{#3}%
+ \setlength{\LabelLeftMargin}{#4}%
+ \setlength{\LabelRightMargin}{#5}%
+ \setcounter{LabelMaxCol}{#6}%
+ \setcounter{LabelMaxRow}{#7}%
+ \setlength{\ToAddressTopMargin}{0.1in}%
+ \setlength{\ToAddressLeftMargin}{0.2in}%
+ \setlength{\ToAddressWidth}{\LabelWidth}%
+ \addtolength{\ToAddressWidth}{-\ToAddressLeftMargin}%
+ \addtolength{\ToAddressWidth}{-\LabelRightMargin}}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\SetBigLabel}
+% \changes{v1.2}{1997/07/14}{Wrote new command}
+% The command "\SetBigLabel" has seven parameters: five lengths and two
+% numbers. All are mandatory:
+% \begin{macrocode}
+\DeclareRobustCommand{\SetBigLabel}[7]{%
+ \@envelopefalse%
+ \@biglabeltrue%
+ \setlength{\LabelWidth}{#1}%
+ \setlength{\LabelHeight}{#2}%
+ \setlength{\LabelTopMargin}{#3}%
+ \setlength{\LabelLeftMargin}{#4}%
+ \setlength{\LabelRightMargin}{#5}%
+ \setcounter{LabelMaxCol}{#6}%
+ \setcounter{LabelMaxRow}{#7}%
+ \setlength{\FromAddressTopMargin}{0.0in}%
+ \setlength{\FromAddressLeftMargin}{0.5in}%
+ \setlength{\FromAddressHeight}{0.33\LabelHeight}%
+ \setlength{\ToAddressTopMargin}{0.1in}%
+ \setlength{\ToAddressLeftMargin}{0.5in}%
+ \setlength{\ToAddressWidth}{\LabelWidth}%
+ \addtolength{\ToAddressWidth}{-\ToAddressLeftMargin}%
+ \addtolength{\ToAddressWidth}{-\LabelRightMargin}%
+ \setlength{\FromAddressWidth}{\ToAddressWidth}}
+% \end{macrocode}
+% \end{macro}
+%
+% \section{Defining options}
+%
+% \subsection{Envelope Sizes}
+% \changes{v1.2}{1996/07/22}{Added new option: dlenvelope (thanks to
+% "J.P.Jansen@net.HCC.nl")}
+% \changes{v1.2}{1997/07/13}{Added \cs{PSEnvelopeTray} to envelope
+% options}
+% \begin{macrocode}
+\DeclareOption{businessenvelope}{\SetEnvelope{9.5in}{4.125in}%
+ \PSEnvelopeTray={/com10envelopetray }}
+\DeclareOption{executiveenvelope}{\SetEnvelope{7.5in}{3.875in}%
+ \PSEnvelopeTray={/monarcenvelopetray }}
+\DeclareOption{bookletenvelope}{\SetEnvelope{10.5in}{7.5in}}
+\DeclareOption{personalenvelope}{\SetEnvelope{6.5in}{3.625in}}
+\DeclareOption{c6envelope}{\SetEnvelope{162mm}{114mm}}
+\DeclareOption{c65envelope}{\SetEnvelope{224mm}{114mm}}
+\DeclareOption{c5envelope}{\SetEnvelope{229mm}{162mm}%
+ \PSEnvelopeTray={/162x229cenvelopetray }}
+\DeclareOption{dlenvelope}{\SetEnvelope{220mm}{110mm}%
+ \PSEnvelopeTray={/dlenvelopetray }}
+% \end{macrocode}
+%
+% \subsection{Labels sizes}
+%
+% \changes{v1.2}{1996/07/22}{Added new option: herma4625label (thanks to
+% "J.P.Jansen@net.HCC.nl")}
+% \changes{v1.2}{1996/09/06}{Added new option: avery5262label (thanks to
+% Uri Blumenthal "uri@ibm.net")}
+% \changes{v1.2}{1997/07/13}{Added new option: avery5164biglabel}
+% \changes{v1.2}{1997/07/13}{Added new option: avery5163biglabel}
+%
+% \begin{macrocode}
+\DeclareOption{avery5160label}{%
+ \SetLabel{2.75in}{1in}{0.5in}{0.19in}{0.12in}{3}{10}}
+\DeclareOption{avery5161label}{%
+ \SetLabel{4.19in}{1in}{0.5in}{0.16in}{0.19in}{2}{10}}
+\DeclareOption{avery5162label}{%
+ \SetLabel{4.19in}{1.33in}{0.83in}{0.16in}{0.19in}{2}{7}}
+\DeclareOption{avery5163label}{%
+ \SetLabel{4.19in}{2in}{0.5in}{0.16in}{0.19in}{2}{5}}
+\DeclareOption{avery5164label}{%
+ \SetLabel{4.19in}{3.33in}{0.5in}{0.16in}{0.19in}{2}{3}}
+\DeclareOption{herma4625label}{%
+ \SetLabel{105mm}{42.3mm}{0mm}{5mm}{5mm}{2}{7}}
+\DeclareOption{avery5262label}{%
+ \SetLabel{110mm}{34mm}{21mm}{4mm}{5mm}{2}{7}}
+\DeclareOption{avery5163biglabel}{%
+ \SetBigLabel{4.19in}{2in}{0.5in}{0.16in}{0.19in}{2}{5}%
+ \setlength{\ToAddressTopMargin}{0.1in}}%
+\DeclareOption{avery5164biglabel}{%
+ \SetBigLabel{4.19in}{3.33in}{0.5in}{0.16in}{0.19in}{2}{3}}%
+% \end{macrocode}
+%
+% \subsection{Optional switches}
+%
+% \changes{v1.1}{1996/07/08}{Added new options: "printreturnaddress",
+% "noprintreturnaddress"}
+% \changes{v1.1}{1996/07/08}{Added new options: "pswait",
+% "nopswait"}
+% \changes{v1.2}{1997/07/13}{Added new options: "psautotray",
+% "nopsautotray"}
+% \changes{v1.2}{1997/07/14}{Added new options: "re", "nore"}
+% All this should be evident\dots
+%
+% \begin{macrocode}
+\DeclareOption{rotateenvelopes}{\@rotateenvelopestrue}
+\DeclareOption{norotateenvelopes}{\@rotateenvelopesfalse}
+\DeclareOption{centerenvelopes}{\@envelopeposition=0\relax}
+\DeclareOption{leftenvelopes}{\@envelopeposition=1\relax}
+\DeclareOption{rightenvelopes}{\@envelopeposition=2\relax}
+\DeclareOption{customenvelopes}{\@envelopeposition=3\relax}
+\DeclareOption{printbarcodes}{\@barcodestrue}
+\DeclareOption{noprintbarcodes}{\@barcodesfalse\@alwaysbarcodesfalse}
+\DeclareOption{alwaysbarcodes}{\@alwaysbarcodestrue\@barcodestrue}
+\DeclareOption{noalwaysbarcodes}{\@alwaysbarcodesfalse}
+\DeclareOption{capaddress}{\@capitalizeaddresstrue}
+\DeclareOption{nocapaddress}{\@capitalizeaddressfalse}
+\DeclareOption{printreturnaddress}{\@printreturnaddresstrue}
+\DeclareOption{noprintreturnaddress}{\@printreturnaddressfalse}
+\DeclareOption{pswait}{\@pswaittrue\@psautotrayfalse}
+\DeclareOption{nopswait}{\@pswaitfalse}
+\DeclareOption{psautotray}{\@psautotraytrue\@pswaitfalse}
+\DeclareOption{nopsautotray}{\@psautotrayfalse}
+\DeclareOption{re}{\@EL@redefine@openingtrue}
+\DeclareOption{nore}{\@EL@redefine@openingfalse}
+% \end{macrocode}
+%
+% \subsection{Unknown options}
+%
+% All options we did not declare above are probably the options for the
+% "graphics" package; let us send them there.
+% \begin{macrocode}
+\DeclareOption*{\PassOptionsToPackage{\CurrentOption}{graphics}}
+% \end{macrocode}
+%
+% \subsection{Default options}\label{sec:DefOpt}
+%
+% \changes{v1.1}{1996/07/08}{Fixed typo in "businessenvelope" option}
+% \changes{v1.1}{1996/07/09}{Added default options: "nopswait",
+% "printreturnaddress"}
+%
+% \begin{macrocode}
+\ExecuteOptions{businessenvelope,rotateenvelopes,centerenvelopes}
+\ExecuteOptions{printbarcodes,capaddress}
+\ExecuteOptions{nopswait,printreturnaddress,nopsautotray,nore}
+% \end{macrocode}
+%
+% \section{Configuration file}
+%
+% At this point we will look for the configuration file. This file is
+% named "envlab.cfg". The options declared in this file will supersede
+% the ones declared in Section~\ref{sec:DefOpt}, but will be in their
+% turn be superseded by the options explicitly defined when the package
+% is loaded.
+% \begin{macrocode}
+\InputIfFileExists{envlab.cfg}{%
+ \typeout{Loading configuration file envlab.cfg}}{%
+ \typeout{Configuration file envlab.cfg is not found}}
+% \end{macrocode}
+%
+% Now let us discuss the structure of the configuration file. We want it
+% to contain default options, and therefore to be loaded before the
+% "\ProcessOptions" command. On the other hand we want it to contain
+% some definitions that \emph{supersede} the ones in this package. The
+% hook "\AtEndOfPackage" helps to do this: we will just delay all
+% definitions until later.
+%
+% OK, let's construct an example of "envlab.cfg" file. The commands here
+% essentially repeat Section~\ref{sec:DefOpt}, but we want to be
+% foolproof\dots
+% \begin{macrocode}
+%</package>
+%<*cfg>
+%%
+%% The default options go here
+%%
+\ExecuteOptions{businessenvelope,rotateenvelopes,centerenvelopes}
+\ExecuteOptions{printbarcodes,capaddress}
+\ExecuteOptions{nopswait,printreturnaddress,nopsautotray,nore}
+%%
+\AtEndOfPackage{\relax % Customization goes here
+}
+%</cfg>
+%<*package>
+% \end{macrocode}
+%
+% \section{Processing options and loading packages}
+% \changes{v0.92}{1996/06/06}{Added \cs{IfFileExists} when loading packages}
+% \begin{macrocode}
+\ProcessOptions
+\IfFileExists{graphics.sty}{%
+ \RequirePackage{graphics}}{%
+ \PackageWarning{envlab}{%
+ You don't have the graphics package!\MessageBreak
+ Probably you will not be able to print\MessageBreak
+ envelopes sidewise. \MessageBreak}}
+% \end{macrocode}
+%
+% \section{Document layout}
+%
+% \subsection{Printer specific commands}
+% \label{sec:Print}
+%
+% \DescribeMacro{\@beginlabelshook}
+% \changes{v1.1}{1996/07/09}{Replaced \cs{@printpreamble} with
+% \cs{@beginlabelshook}}
+% The command "\@beginlabelshook" is called at the beginning of the
+% printing of envelopes and labels. We define it to be a no-op, but it
+% is possible to introduce some printer-specific commands (like paper
+% change).
+% \begin{macrocode}
+\def\@beginlabelshook{\relax}
+% \end{macrocode}
+%
+% \DescribeMacro{\@beginlabelpagehook}
+% \changes{v1.1}{1996/07/09}{Introduced new command
+% \cs{@beginlabelpagehook}}
+% The command "\@beginlabelpagehook" is like "\@beginlabelshook", but is
+% called at the beginning of each \emph{page}
+% of envelopes and labels.
+% \begin{macrocode}
+\def\@beginlabelpagehook{\relax}
+% \end{macrocode}
+%
+% \begin{macro}{\AtBeginLabels}
+% \changes{v1.1}{1996/07/08}{Made \cs{AtBeginLabels} cumulative}
+% \begin{macro}{\AtBeginLabelPage}
+% \changes{v1.1}{1996/07/09}{Introduced \cs{AtBeginLabelPage}}
+% The hooks "\AtBeginLabels" and "\AtBeginLabelPage" redefine
+% "\@beginlabelshook" and "\@beginlabelpagehook". They are built like
+% the standard \LaTeXe\ hooks
+% "\AtBeginDocument", "\AtBeginDvi", etc. In the implementation we use the
+% \emph{internal} \LaTeXe\ command "\g@addto@macro". In the current
+% (June~1996) \LaTeXe\ release it is defined as:
+% \DescribeMacro{\g@addto@macro}
+% \begin{verbatim}
+% \long\def\g@addto@macro#1#2{{%
+% \toks@\expandafter{#1#2}%
+% \xdef#1{\the\toks@}}}
+% \end{verbatim}
+% We quote this definition in case \emph{They} change Their minds\dots\
+% \begin{macrocode}
+\def\AtBeginLabels{\g@addto@macro\@beginlabelshook}
+\def\AtBeginLabelPage{\g@addto@macro\@beginlabelpagehook}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+%
+% \begin{macro}{\PSwait}
+% \changes{v1.1}{1996/07/09}{Put William Slough's code in a separate macro}
+% \textsl{PostScript} printers can be switched to the manual feeding mode
+% with the following code by \emph{William Slough} "<cfwas@eiu.edu>".
+% \begin{macrocode}
+\def\PSwait{\special{ps: clear grestore @manualfeed 0 0 bop}}
+% \end{macrocode}
+% The author explains his code in the following way:
+% \begin{quotation}
+% Here is a possible explanation:
+%
+% The clear removes operands from the PostScript stack, which has the
+% effect of reversing some actions from the *previous* bop. Unfortunately,
+% it reverses other important actions too (such as font size), but the
+% grestore seems to get these back. Then the desired @manualfeed, followed
+% by the ``bop'' for the beginning of page. The pair of 0's are used for
+% bop and are completely bogus. However, from what I could detect, 0's are
+% as good as anything. The values that DVIPS provides for bop seem to be
+% related to DVI page numbers.
+%
+% I make no guarantee about the reliability of this solution, but initial
+% tests indicate it will work for my environment.
+% \end{quotation}
+% \end{macro}
+%
+% \begin{macro}{\PSautotray}
+% \changes{v1.2}{1997/07/13}{Wrote new command}
+% This implements the code by \emph{Uri Blumenthal}
+% "<uri@.ibm.net>".
+% \begin{macrocode}
+\edef\PSautotray{%
+ \special{ps:clear grestore
+ statusdict begin false setduplexmode
+ /manualfeed true def
+ \the\PSEnvelopeTray end 0 0 bop }}
+% \end{macrocode}
+% \end{macro}
+%
+% \changes{v1.1}{1996/07/08}{Added implementation of the "pswait" option}
+% \changes{v1.1}{1996/07/09}{Moved \cs{PSwait} code to \cs{AtBeginLabelPage}}
+% \changes{v1.1}{1996/07/15}{Moved \cs{PSwait} code to
+% \cs{AtBeginLabels}}
+% \changes{v1.1}{1997/07/13}{Added implementation of the "psautotray" option}
+% The option "pswait" puts the "\PSwait" code in the beginning of each
+% page. The option "\psautotray" puts there the "\PSautotray" code.
+% \begin{macrocode}
+\if@pswait
+ \AtBeginLabels{\PSwait}%
+\else
+ \if@psautotray
+ \AtBeginLabels{\PSautotray}%
+ \fi
+\fi
+% \end{macrocode}
+%
+%
+% \subsection{Some useful counters for labels}
+%
+%
+%
+% \DescribeMacro{\c@LabelCountCol}
+% \DescribeMacro{\c@LabelCountRow}
+% These counters store the position of the currently printed label:
+% \begin{macrocode}
+\newcounter{LabelCountCol}
+\newcounter{LabelCountRow}
+% \end{macrocode}
+%
+%
+% \DescribeMacro{\c@LabelOffsetCol}
+% \DescribeMacro{\c@LabelOffsetRow}
+% And these counters provide the offset for the label printed on a
+% partially used sheet:
+% \begin{macrocode}
+\newcounter{LabelOffsetCol}
+\newcounter{LabelOffsetRow}
+\setcounter{LabelOffsetCol}{1}
+\setcounter{LabelOffsetRow}{1}
+% \end{macrocode}
+%
+% \begin{macro}{\FirstLabel}
+% \changes{v1.1}{1996/07/08}{Introduced new command \cs{FirstLabel}}
+% The command "\FirstLabel"\marg{Row}\marg{Col} sets the counters
+% "LabelOffsetRow" and "LabelOffsetCol".
+% \begin{macrocode}
+\DeclareRobustCommand{\FirstLabel}[2]{%
+ \setcounter{LabelOffsetRow}{#1}%
+ \setcounter{LabelOffsetCol}{#2}}
+% \end{macrocode}
+% \end{macro}
+%
+%
+% \subsection{Fonts}
+%
+%
+% \begin{macro}{\@toaddressfont}
+% \begin{macro}{\@fromaddressfont}
+% \changes{v1.1}{1996/07/08}{Fixed documentation about \cs{@fromaddressfont}}
+% We want the address to be printed in \textsf{\large 12pt sans serif}
+% font. The return address will be printed in 10pt normal font.
+% \begin{macrocode}
+\def\@toaddressfont{%
+ \ifcase\@ptsize \large\or\normalsize\or\small\fi%
+ \sffamily\selectfont}
+\def\@fromaddressfont{%
+ \ifcase\@ptsize \normalsize\or\small\or\footnotesize\fi%
+ \normalfont}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+%
+% \subsection{Return address}
+%
+% \begin{macro}{\returnaddress}
+% \changes{v1.2}{1997/07/13}{Deleted check for \cs{if@envelope}}
+% The standard letter class defines "\returnaddress" to be null. This
+% is sensible if we are printing labels, but not so good if we are
+% printing \emph{envelopes}. Therefore let us redefine it:
+% \begin{macrocode}
+\def\returnaddress{\fromaddress}
+% \end{macrocode}
+% \end{macro}
+%
+% \subsection{Margins, page styles, etc.}
+%
+%
+% \begin{macro}{\startlabels}
+% \changes{v1.2}{1996/09/07}{Added \cs{clearpage}}
+% \changes{v1.2}{1996/09/20}{Added percent signs}
+% \changes{v1.2}{1997/07/10}{Moved here calculations for
+% \cs{EnvelopeLeftMargin}}
+% \changes{v1.2}{1997/07/10}{Added \cs{LabelLeftMargin}}
+% The command "\startlabels" is the internal command that prepares
+% the paper for labels or envelopes, resets the internal counters and
+% calls "\@beginlabelshook".
+% \begin{macrocode}
+\def\startlabels{%
+ \clearpage%
+ \pagestyle{empty}%
+ \setlength{\topmargin}{-1.0in}%
+ \if@envelope%
+ \addtolength{\topmargin}{\EnvelopeTopMargin}%
+ \else \addtolength{\topmargin}{\LabelTopMargin}%
+ \fi%
+ \setlength{\headheight}{0pt}%
+ \setlength{\headsep}{0pt}%
+ \setlength{\footskip}{0pt}%
+ \setlength{\textheight}{200in}%
+ \setlength\paperheight{\textheight}%
+ \global\vsize=200in\relax%
+ \addtolength{\textheight}{-\topmargin}%
+ \addtolength{\textheight}{-1.0in}%
+ \setlength{\oddsidemargin}{-1.0in}%
+ \if@envelope\relax%
+ \else%
+ \addtolength{\oddsidemargin}{\LabelLeftMargin}%
+ \fi%
+ \setlength{\evensidemargin}{\oddsidemargin}%
+ \setlength{\textwidth}{20in}%
+ \hsize=20in%
+ \baselineskip=0pt%
+ \lineskip=0pt%
+ \parindent=0pt%
+ \if@envelope
+% \end{macrocode}
+%
+% Now we can calculate "\EnvelopeLeftMargin"
+%
+% \begin{macrocode}
+ \ifcase\the\@envelopeposition%
+ \setlength{\EnvelopeLeftMargin}{\paperwidth}%
+ \if@rotateenvelopes%
+ \addtolength{\EnvelopeLeftMargin}{-\EnvelopeHeight}%
+ \else%
+ \addtolength{\EnvelopeLeftMargin}{-\EnvelopeWidth}%
+ \fi%
+ \setlength{\EnvelopeLeftMargin}{0.5\EnvelopeLeftMargin}%
+ \or%
+ \setlength{\EnvelopeLeftMargin}{0pt}%
+ \or%
+ \setlength{\EnvelopeLeftMargin}{\paperwidth}%
+ \if@rotateenvelopes%
+ \addtolength{\EnvelopeLeftMargin}{-\EnvelopeHeight}%
+ \else%
+ \addtolength{\EnvelopeLeftMargin}{-\EnvelopeWidth}%
+ \fi%
+ \else%
+ \relax%
+ \fi%
+ \else%
+% \end{macrocode}
+%
+% Initializing labels counters\ldots
+%
+% \begin{macrocode}
+ \setcounter{LabelCountCol}{\theLabelOffsetCol}%
+ \setcounter{LabelCountRow}{\theLabelOffsetRow}%
+ \ifnum\theLabelOffsetRow>1%
+ \null%
+ \loop \vspace*{\LabelHeight}%
+ \addtocounter{LabelOffsetRow}{-1} \ifnum\theLabelOffsetRow>1%
+ \repeat%
+ \fi%
+ \ifnum\theLabelOffsetCol>1%
+ \loop \hspace*{\LabelWidth}\nolinebreak%
+ \addtocounter{LabelOffsetCol}{-1} \ifnum\theLabelOffsetCol>1%
+ \repeat%
+ \fi%
+ \nopagebreak%
+ \fi%
+ \spaceskip0pt\relax%
+ \xspaceskip 0pt\relax%
+ \clubpenalty=0%
+ \widowpenalty=0%
+ \raggedbottom%
+ \sloppy%
+ \setlength\hfuzz{5in}%
+ \setlength\vfuzz{5in}%
+ \ignorespaces%
+ \@beginlabelshook%
+ \@beginlabelpagehook%
+ \nopagebreak}%
+% \end{macrocode}
+% \end{macro}
+%
+% \subsection{Printing of the addresses}
+%
+% \DescribeMacro{\PrintReturnAddress}
+% This macro uses the text as an argument and prints it according to
+% the conventions.
+% \begin{macrocode}
+\newcommand{\PrintReturnAddress}[1]{%
+ \vspace*{\FromAddressTopMargin}
+ \null\hspace{\FromAddressLeftMargin}
+ \parbox[t][\FromAddressHeight]{\FromAddressWidth}%
+ {\@fromaddressfont \lineskip=1pt
+ \if@printreturnaddress #1\else\relax\fi}}
+% \end{macrocode}
+%
+% \DescribeMacro{\PrintAddress}
+% This macro works like "\PrintReturnAddress", with several important
+% differences: it prints barcodes if necessary \emph{and}
+% capitalizes the address.
+% \begin{macrocode}
+\newcommand{\PrintAddress}[1]{%
+ \vspace*{\ToAddressTopMargin}
+ \leavevmode
+ \null\hspace*{\ToAddressLeftMargin}
+ \parbox[t]{\ToAddressWidth}{%
+ \lineskip=1pt
+ \if@barcodes \PrintBarCode{#1} \fi
+ \@toaddressfont
+ \if@capitalizeaddress \@make@capitalize{#1} \else #1 \fi}}
+% \end{macrocode}
+%
+% \subsection{Label setup}
+%
+% \begin{macro}{\PrintLabel}
+% \changes{v1.2}{1996/09/20}{Added percent signs}
+% This macro prints a label in a parbox
+% \begin{macrocode}
+\newcommand{\PrintLabel}[1]{%
+ \parbox[t][\LabelHeight]{\LabelWidth}{%
+ \PrintAddress{#1}}}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\PrintBigLabel}
+% \changes{v1.2}{1997/07/13}{Wrote new command}
+% This macro makes a minipage with addresses on it, similarly to
+% "\PrintEnvelope" below.
+% \begin{macrocode}
+\newcommand{\PrintBigLabel}[2]{%
+ \begin{minipage}[t][\LabelHeight]{\LabelWidth}%
+ \baselineskip=0pt%
+ \lineskip=0pt%
+ \parindent=0pt%
+ \begin{center}%
+ \PrintReturnAddress{#1}\\%
+ \rule{\ToAddressWidth}{0.1pt}%
+ \PrintAddress{#2}%
+ \end{center}%
+ \end{minipage}}
+% \end{macrocode}
+%
+%
+% \subsection{Envelope setup}
+%
+% Labels include one box per label, so their setup is simple. The
+% situation with envelopes is different: they contain several boxes, and
+% could be rotated, centered, etc.
+%
+% \begin{macro}{\PrintEnvelope}
+% \changes{v1.2}{1996/09/20}{Added percent signs}
+% This macro makes a minipage with addresses on it.
+% \begin{macrocode}
+\newcommand{\PrintEnvelope}[2]{%
+ \begin{minipage}[t][\EnvelopeHeight]{\EnvelopeWidth}%
+ \baselineskip=0pt%
+ \lineskip=0pt%
+ \parindent=0pt%
+ \PrintReturnAddress{#1}\\%
+ \begin{center}%
+ \PrintAddress{#2}%
+ \end{center}%
+ \end{minipage}}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\@PrintEnvelope}
+% The following macro checks for rotation:
+% \begin{macrocode}
+\newcommand{\@PrintEnvelope}[2]{%
+ \if@rotateenvelopes\rotatebox{90}{\PrintEnvelope{#1}{#2}}%
+ \else\PrintEnvelope{#1}{#2}%
+ \fi}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+%
+% \section{Printing of envelopes and labels}
+%
+% \subsection{Main Command}
+%
+% \begin{macro}{\mlabel}
+% Now we are prepared to print actual envelopes and labels. It is done by
+% the "\mlabel" command. It has two forms: for labels and envelopes.
+% \begin{macrocode}
+\renewcommand{\mlabel}[2]{\ignorespaces%
+ \spaceskip 0pt\relax%
+ \xspaceskip 0pt\relax%
+% \end{macrocode}
+%
+% \subsection{Printing of one envelope}
+% \changes{v1.1}{1996/07/09}{Put \cs{@beginlabelpagehook} in the envelope
+% printing}
+% \begin{macrocode}
+ \if@envelope%
+ \leavevmode%
+ \hspace*{\EnvelopeLeftMargin}%
+ \@PrintEnvelope{#1}{#2}%
+ \clearpage%
+ \@beginlabelpagehook%
+% \end{macrocode}
+% \subsection{Printing of one label}
+% \changes{v1.1}{1996/07/09}{Put \cs{@beginlabelpagehook} in the label
+% printing}
+% \changes{v1.2}{1997/07/14}{Added printing of big labels}
+% \begin{macrocode}
+ \else%
+ \ignorespaces%
+ \ifnum\theLabelCountCol>\theLabelMaxCol%
+ \\\nopagebreak%
+ \stepcounter{LabelCountRow}%
+ \setcounter{LabelCountCol}{1}%
+ \fi%
+ \ifnum\theLabelCountRow>\theLabelMaxRow%
+ \vfill\eject\@beginlabelpagehook%
+ \setcounter{LabelCountRow}{1}%
+ \setcounter{LabelCountCol}{1}%
+ \fi%
+ \if@biglabel%
+ \PrintBigLabel{#1}{#2}%
+ \else%
+ \PrintLabel{#2}%
+ \fi%
+ \ignorespaces\nolinebreak%
+ \stepcounter{LabelCountCol}%
+ \fi}%
+% \end{macrocode}
+% \end{macro}
+%
+% \subsection{Printing of return labels}
+%
+% We print only mailing addresses on labels. The user is supposed to have
+% preprinted return labels. Here we describe a utility for printing them.
+% This utility should be used in a separate document.
+%
+% \DescribeMacro{\@numreturnlabels}
+% The counter "\@numreturnlabels" stores the number of return labels to
+% be printed. Note that it is a \TeX\ counter, not a \LaTeX\ one.
+% \begin{macrocode}
+\newcount\@numreturnlabels
+% \end{macrocode}
+%
+% \DescribeMacro{\printreturnlabels}
+% This macro has two parameters: the number of labels to be printed and
+% the text that is printed. It is the same on all labels.
+% \begin{macrocode}
+\newcommand{\printreturnlabels}[2]{%
+ \@numreturnlabels=#1
+ \def\@toaddressfont{\@fromaddressfont}
+ \@capitalizeaddressfalse
+ \@barcodesfalse
+ \startlabels
+ \loop \mlabel{\relax}{#2} \advance\@numreturnlabels by -1
+ \ifnum\@numreturnlabels>0\repeat}
+% \end{macrocode}
+%
+% \section{Barcodes}
+%
+% \subsection{Main command}
+%
+% The USPS Postnet codes are printed accordingly to the specifications
+% Ref.~\cite{Pub25}. The scanning algorithm
+% is stolen from David Carlisle's \textsf{enumerate} package~\cite{Enum}.
+%
+% \DescribeMacro{\PrintBarCode}
+% First, we extract barcodes by the command "\@extractbarcode". Then
+% we print them by "\@printbarcode".
+% \begin{macrocode}
+\newcommand{\PrintBarCode}[1]{%
+ \@extractbarcode{#1}
+ \@printbarcode}
+% \end{macrocode}
+%
+% \subsection{Extraction of barcodes}\label{sec:Extract}
+% \changes{v1.2}{1996/07/10}{Deleted \cs{global} from zipcode
+% extracting commands}
+% We define zipcode as a sequence of digits (0--9) that:
+% \begin{itemize}
+% \item Has no characters other than digits and dashes (-) inside it
+% \item Has no bracketed groups inside it and is not bracketed itself
+% \item Is the last in the address field unless "\if@alwaysbarcodes=true"
+% \end{itemize}
+%
+% We print this sequence plus the \emph{control character}.
+% The latter is defined as minus sum of digits of the
+% zip code
+% modulo 10 (that is, the complement of the sum of digits to a
+% multiple of 10).
+%
+% First, some internal registers.
+% \DescribeMacro{\@zipcode}
+% \DescribeMacro{\@zipcodesum}
+% \DescribeMacro{\@zipcodefound}
+% The token list "\@zipcode" contains barcode found so far. The register
+% "\@zipcodesum" first contains the sum of digits of the barcode, and
+% then the control character. The
+% switch "\@zipcodefound" shows whether we found zip code so far.
+% \begin{macrocode}
+\newtoks\@zipcode
+\newcount\@zipcodesum
+\newif\if@zipcodefound
+% \end{macrocode}
+%
+%
+%
+% There are two modes for gobbling tokens:
+% \begin{enumerate}[{State} A:]
+% \item We are outside a potential zipcode sequence
+% ("\if@zipcodefound=false")\label{state:notfound}
+% \item We are inside a potential zipcode sequence
+% ("\if@zipcodefound=true")\label{state:found}
+% \end{enumerate}
+%
+% \begin{itemize}
+%
+% \item \DescribeMacro{\@endaddress} \DescribeMacro{\@finishzipcode}
+% If we meet in any state the special token "\@endaddress", we
+% gobble it and finish the loop.
+% \begin{macrocode}
+\long\def\@finishzipcode#1{}
+% \end{macrocode}
+%
+% \item \DescribeMacro{\@firstzipcode} If we meet a number (0--9) in
+% state~\ref{state:notfound}, we initialize registers, process the
+% token and go to state~\ref{state:found}
+% \begin{macrocode}
+\long\def\@firstzipcode#1{%
+ \@zipcode{#1}
+ \@zipcodesum=#1\relax
+ \@zipcodefoundtrue
+ \@zipcodeloop}
+% \end{macrocode}
+%
+% \item \DescribeMacro{\@continuezipcode} If we meet a number (0--9)
+% in state~\ref{state:found}, we just process it.
+% \begin{macrocode}
+\long\def\@continuezipcode#1{%
+ \@zipcode=\expandafter{\the\@zipcode#1}
+ \advance\@zipcodesum by #1
+ \@zipcodeloop}
+% \end{macrocode}
+%
+% \item \DescribeMacro{\@dashzipcode} If we meet a dash in
+% state~\ref{state:found}, we gobble it.
+% \begin{macrocode}
+\long\def\@dashzipcode#1{\@zipcodeloop}
+% \end{macrocode}
+%
+% \item \DescribeMacro{\@spacezipcode} If we meet a space in any
+% state, we gobble it and go to the state~\ref{state:notfound}. The
+% trick is from Carlisle's \textsf{enumerate} package.
+% \begin{macrocode}
+\def\@spacezipcode{%
+ \@zipcodefoundfalse
+ \afterassignment\@zipcodeloop\let\EL@temp= }
+% \end{macrocode}
+%
+% \item \DescribeMacro{\@abortzipcode} If we meet anything else in any
+% mode, we gobble it and go to state~\ref{state:notfound}
+% \begin{macrocode}
+\long\def\@abortzipcode#1{%
+ \@zipcodefoundfalse
+ \@zipcodeloop}
+% \end{macrocode}
+%
+% \end{itemize}
+%
+%
+% \DescribeMacro{\@zipcodeloop}
+% \DescribeMacro{\EL@temp}
+% \changes{v1.2}{1997/07/14}{Changed \cs{@temp} to \cs{EL@temp} to
+% avoid clashes with amsmath}
+% This macro is simple. We just put the next token into "\EL@temp" and
+% process it through "\@zipcodeloop@".
+% \begin{macrocode}
+\def\@zipcodeloop{\futurelet\EL@temp\@zipcodeloop@}
+% \end{macrocode}
+%
+% \DescribeMacro{\@zipcodeloop@}
+% \DescribeMacro{\EL@tempa}
+% \changes{v1.2}{1997/07/14}{Changed \cs{@tempa} to \cs{EL@tempa} to
+% avoid clashes with amsmath}
+% This macro performs actual processing\dots We put the command
+% that gobbles the next token into "\EL@tempa"
+% \begin{macrocode}
+\def\@zipcodeloop@{%
+ \ifx \@endaddress\EL@temp \def\EL@tempa{\@finishzipcode} \else
+ \ifx 0\EL@temp \if@zipcodefound \def\EL@tempa{\@continuezipcode}
+ \else \def\EL@tempa{\@firstzipcode} \fi \else
+ \ifx 1\EL@temp \if@zipcodefound \def\EL@tempa{\@continuezipcode}
+ \else \def\EL@tempa{\@firstzipcode} \fi \else
+ \ifx 2\EL@temp \if@zipcodefound \def\EL@tempa{\@continuezipcode}
+ \else \def\EL@tempa{\@firstzipcode} \fi \else
+ \ifx 3\EL@temp \if@zipcodefound \def\EL@tempa{\@continuezipcode}
+ \else \def\EL@tempa{\@firstzipcode} \fi \else
+ \ifx 4\EL@temp \if@zipcodefound \def\EL@tempa{\@continuezipcode}
+ \else \def\EL@tempa{\@firstzipcode} \fi \else
+ \ifx 5\EL@temp \if@zipcodefound \def\EL@tempa{\@continuezipcode}
+ \else \def\EL@tempa{\@firstzipcode} \fi \else
+ \ifx 6\EL@temp \if@zipcodefound \def\EL@tempa{\@continuezipcode}
+ \else \def\EL@tempa{\@firstzipcode} \fi \else
+ \ifx 7\EL@temp \if@zipcodefound \def\EL@tempa{\@continuezipcode}
+ \else \def\EL@tempa{\@firstzipcode} \fi \else
+ \ifx 8\EL@temp \if@zipcodefound \def\EL@tempa{\@continuezipcode}
+ \else \def\EL@tempa{\@firstzipcode} \fi \else
+ \ifx 9\EL@temp \if@zipcodefound \def\EL@tempa{\@continuezipcode}
+ \else \def\EL@tempa{\@firstzipcode} \fi \else
+ \ifx -\EL@temp \if@zipcodefound \def\EL@tempa{\@dashzipcode}
+ \else \def\EL@tempa{\@abortzipcode} \fi \else
+ \ifx \@sptoken\EL@temp \def\EL@tempa{\@spacezipcode} \else
+ \def\EL@tempa{\@abortzipcode}
+ \fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi
+ \EL@tempa}
+% \end{macrocode}
+%
+%
+% \DescribeMacro{\@extractbarcode}
+% The command "\@extractbarcode" puts barcode into the "\@zipcode",
+% and calculates the control character (10 minus sum of the digits
+% of the barcode).
+% \begin{macrocode}
+\long\def\@extractbarcode#1{%
+ \@zipcodefoundfalse
+ \@zipcodeloop#1\@endaddress
+ \if@alwaysbarcodes \@zipcodefoundtrue \fi
+ \if@zipcodefound
+ \ifnum\the\@zipcodesum>0
+ \loop \advance \@zipcodesum by -10 \ifnum\the\@zipcodesum>0
+ \repeat
+ \fi
+ \multiply\@zipcodesum by -1
+ \fi}
+% \end{macrocode}
+%
+% \subsection{Printing barcodes}
+%
+% \DescribeMacro{\@barcodewidth}
+% \DescribeMacro{\@barcodeLheight}
+% \DescribeMacro{\@barcodeSheight}
+% \DescribeMacro{\@barcodeskip}
+% First, some lengths. ``L'' and ``S'' below refer to ``long'' and
+% ``short'' bars correspondingly.
+% \begin{macrocode}
+\newlength{\@barcodewidth}
+\newlength{\@barcodeLheight}
+\newlength{\@barcodeSheight}
+\newlength{\@barcodeskip}
+\setlength{\@barcodewidth}{0.020in}
+\setlength{\@barcodeLheight}{0.125in}
+\setlength{\@barcodeSheight}{0.050in}
+\setlength{\@barcodeskip}{0.026in}
+% \end{macrocode}
+%
+% \DescribeMacro{\@barL}
+% \DescribeMacro{\@barS}
+% The following macros print long and short bars.
+% \begin{macrocode}
+\DeclareRobustCommand{\@barL}{%
+ \rule{\@barcodewidth}{\@barcodeLheight}\hspace{\@barcodeskip}}
+\DeclareRobustCommand{\@barS}{%
+ \rule{\@barcodewidth}{\@barcodeSheight}\hspace{\@barcodeskip}}
+% \end{macrocode}
+%
+% \DescribeMacro{\@printonezip}
+% \DescribeMacro{\@printbarcode}
+% The scanning of "\@zipcode" is simpler than the scanning of the address:
+% the only tokens we can meet are digits. Well, we will add an end marking
+% token to the list. Let it be the letter ``S'' (from ``Stop'').
+% \begin{macrocode}
+\def\@printonezip#1{%
+ \ifx1#1\@barS\@barS\@barS\@barL\@barL\else
+ \ifx2#1\@barS\@barS\@barL\@barS\@barL\else
+ \ifx3#1\@barS\@barS\@barL\@barL\@barS\else
+ \ifx4#1\@barS\@barL\@barS\@barS\@barL\else
+ \ifx5#1\@barS\@barL\@barS\@barL\@barS\else
+ \ifx6#1\@barS\@barL\@barL\@barS\@barS\else
+ \ifx7#1\@barL\@barS\@barS\@barS\@barL\else
+ \ifx8#1\@barL\@barS\@barS\@barL\@barS\else
+ \ifx9#1\@barL\@barS\@barL\@barS\@barS\else
+ \ifx0#1\@barL\@barL\@barS\@barS\@barS\else
+ \ifx S#1\def\EL@tempa{\relax}%
+ \fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi%
+ \EL@tempa}
+\def\@printbarcode{%
+ \if@zipcodefound
+ \mbox{%
+ \@barL%
+ \def\EL@tempa{\@printonezip}%
+ \expandafter\EL@tempa\the\@zipcode S%
+ \def\EL@tempa{\@printonezip}%
+ \expandafter\EL@tempa\the\@zipcodesum S%
+ \@barL}
+ \\[1ex]
+ \fi}
+% \end{macrocode}
+%
+%
+%
+% \section{Capitalization}
+%
+%
+% \changes{v1.2}{1996/07/10}{Deleted \cs{global} from capitalization commands}
+%
+%
+%
+% These macros process the address (actually, any string) according to the
+% USPS recommendations. Specifically, they:
+% \begin{itemize}
+% \item Strip dots (.) and commas (,) from the address unless they are
+% enclosed in brackets
+% \item Make all letters uppercase
+% \item Add 1pt space between letters
+% \item Add 1em space between words
+% \end{itemize}
+% An interesting question is whether we should de-accent accented
+% letters. USPS says nothing about it. In the present version accents
+% are \emph{not} stripped. However due to the scanning algorithm they
+% should be enclosed by brackets, like this:
+% "{\u S}andor {\c C}edi".
+%
+%
+%
+% \DescribeMacro{\@addr@cap}
+% We store the capitalized address in the token list "\@addr@cap".
+% \begin{macrocode}
+\newtoks\@addr@cap
+% \end{macrocode}
+%
+% The following macros process the tokens one by one.
+%
+% \DescribeMacro{\@finishaddrcap}
+% If we meet the special token "\@endaddress", we gobble it and stop.
+% \begin{macrocode}
+\long\def\@finishaddrcap#1{}
+% \end{macrocode}
+%
+% \DescribeMacro{\@dotcommaaddrcap}
+% If we meet comma or dot, we gobble it and do \emph{not} stop. This macro
+% is also useful for gobbling \LaTeXe\ \textsf{letter} commands like
+% "\voidb@x" and "\unhbox".
+% \begin{macrocode}
+\long\def\@dotcommaaddrcap#1{%
+ \@addrcaploop}
+% \end{macrocode}
+%
+% \DescribeMacro{\@newlineaddrcap}
+% If we meet "\\", we add it to the list
+% \begin{macrocode}
+\long\def\@newlineaddrcap#1{%
+ \@addr@cap=\expandafter{\the\@addr@cap #1}
+ \@addrcaploop}
+% \end{macrocode}
+%
+% \DescribeMacro{\@bgroupaddrcap}
+% If we meet "\bgroup", we add it to the list the complete group (uppercase)
+% \begin{macrocode}
+\long\def\@bgroupaddrcap#1{%
+ \@addr@cap=\expandafter{\the\@addr@cap {\MakeUppercase{#1}}}
+ \@addrcaploop}
+% \end{macrocode}
+%
+% \DescribeMacro{\@spaceaddrcap}
+% If we meet a space we gobble it (oh-oh) and add it to the list.
+% \begin{macrocode}
+\def\@spaceaddrcap{%
+ \@addr@cap=\expandafter{\the\@addr@cap\hspace{0.6em}}
+ \afterassignment\@addrcaploop\let\EL@temp= }
+% \end{macrocode}
+%
+% \DescribeMacro{\@otheraddrcap}
+% And if we meet anything else, we make it uppercase and add to the
+% list
+% \begin{macrocode}
+\def\@otheraddrcap#1{%
+ \@addr@cap=\expandafter{\the\@addr@cap%
+ \MakeUppercase{#1}\kern1pt\relax}
+ \@addrcaploop}
+% \end{macrocode}
+%
+%
+% \DescribeMacro{\@addrcaploop}
+% This macro is simple. We just put the next token into "\EL@temp" and
+% process it through "\@addrcaploop@".
+% \begin{macrocode}
+\def\@addrcaploop{\futurelet\EL@temp\@addrcaploop@}
+% \end{macrocode}
+%
+% \DescribeMacro{\@addrcaploop@}
+% This macro performs actual processing\dots
+% \begin{macrocode}
+\def\@addrcaploop@{%
+ \ifx \@endaddress\EL@temp \def\EL@tempa{\@finishaddrcap} \else
+ \ifx .\EL@temp \def\EL@tempa{\@dotcommaaddrcap} \else
+ \ifx ,\EL@temp \def\EL@tempa{\@dotcommaaddrcap} \else
+ \ifx \voidb@x\EL@temp \def\EL@tempa{\@dotcommaaddrcap} \else
+ \ifx \unhbox\EL@temp \def\EL@tempa{\@dotcommaaddrcap} \else
+ \ifx \\\EL@temp \def\EL@tempa{\@newlineaddrcap} \else
+ \ifx \bgroup\EL@temp \def\EL@tempa{\@bgroupaddrcap} \else
+ \ifx \@sptoken\EL@temp \def\EL@tempa{\@spaceaddrcap} \else
+ \def\EL@tempa{\@otheraddrcap}
+ \fi\fi\fi\fi\fi\fi\fi\fi
+ \EL@tempa}
+% \end{macrocode}
+%
+% \DescribeMacro{\@make@capitalize}
+% \begin{macrocode}
+\long\def\@make@capitalize#1{%
+ \@addr@cap={\relax}
+ \@addrcaploop#1\@endaddress
+ \the\@addr@cap}
+% \end{macrocode}
+%
+%
+% \section{Games with \texttt{.aux} file}
+%
+% The commands described in this section write something to the
+% |.aux| file, and thus change the way \EL\ treats the labels and
+% envelopes. Since the action is delayed till the |.aux| file is
+% processed, these commands affect only the labels automatically
+% extracted from the |letter| environment, and do not affect the
+% labels explicitly defined by the |\mlabel| commands in the main
+% file.
+%
+%
+% \changes{v1.2}{1996/09/07}{Added \cs{@@mlabel}}
+% \DescribeMacro{\@@mlabel}
+% The macro |\@@mlabel| stores the status of the |\@mlabel| as
+% determined by |\makelabels|. It is a no-op at the start.
+% If |\makelabels| redefines |\@mlabel|, we catch it through the
+% |\AtEndDocument| hook. Note that since |\makelabel| is allowed
+% only in the preamble, we are not in danger of redefining commands too
+% early.
+% \begin{macrocode}
+\let\@@mlabel=\@gobbletwo
+\AtEndDocument{\let\@@mlabel=\@mlabel}
+% \end{macrocode}
+%
+%
+% The next four commands redefine |\@mlabel| to suppress or resume
+% printing mailing labels.
+%
+% \begin{macro}{\suppresslabels}
+% \changes{v1.2}{1996/09/06}{Wrote new command}
+% This command suppress printing labels and envelopes until it is
+% resumed by |\resumelabels| or similar commands.
+% \begin{macrocode}
+\def\suppresslabels{\if@filesw\immediate\write\@auxout{%
+ \string\@suppresslabels}\fi}
+% \end{macrocode}
+%
+% \begin{macro}{\@suppresslabels}
+% \changes{v1.2}{1996/09/07}{Deleted the \cs{AtBeginDocument} hook}
+% This is the internal command that performs the actual
+% processing.
+% \begin{macrocode}
+\def\@suppresslabels{\let\@mlabel=\@gobbletwo}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+%
+% \begin{macro}{\resumelabels}
+% \changes{v1.2}{1996/09/06}{Wrote new command}
+% \begin{macro}{\@resumelabels}
+% \changes{v1.2}{1996/09/07}{Changed \cs{mlabel} to \cs{@@mlabel} and
+% deleted the \cs{AtBeginDocument} hook}
+% These commands resume printing labels and envelopes if it was
+% suppressed by |\suppresslabels| or similar commands.
+% \begin{macrocode}
+\def\resumelabels{\if@filesw\immediate\write\@auxout{%
+ \string\@resumelabels}\fi}
+\def\@resumelabels{\let\@mlabel=\@@mlabel}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+%
+%
+% \begin{macro}{\suppressonelabel}
+% \changes{v1.2}{1996/06/09}{Wrote new command}
+% \begin{macro}{\@suppressonelabel}
+% \changes{v1.2}{1996/09/07}{Deleted the \cs{AtBeginDocument} hook}
+% \begin{macro}{\@old@mlabel}
+% These commands suppress printing of one label or envelope.
+% The macro |\@old@mlabel| is used to store the
+% system state.
+% \begin{macrocode}
+\def\suppressonelabel{\if@filesw\immediate\write\@auxout{%
+ \string\@suppressonelabel}\fi}
+\def\@suppressonelabel{\let\@old@mlabel=\@mlabel%
+ \def\@mlabel{%
+ \let\@mlabel=\@old@mlabel%
+ \@gobbletwo}}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+%
+% \begin{macro}{\printonelabel}
+% \changes{v1.2}{1996/06/09}{Wrote new command}
+% \begin{macro}{\@printonelabel}
+% \changes{v1.2}{1996/09/07}{Changed \cs{mlabel} to \cs{@@mlabel} and
+% deleted the \cs{AtBeginDocument} hook}
+% These commands resume printing for one label or envelope
+% The macro |\@old@mlabel| is used to store the
+% system state.
+% \begin{macrocode}
+\def\printonelabel{\if@filesw\immediate\write\@auxout{%
+ \string\@printonelabel}\fi}
+\def\@printonelabel{\let\@old@mlabel=\@mlabel%
+ \def\@mlabel{%
+ \let\@mlabel=\@old@mlabel%
+ \@@mlabel}}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+%
+%
+% \begin{macro}{\ChangeEnvelope}
+% \changes{v1.2}{1996/09/07}{Wrote new command}
+% \begin{macro}{\@ChangeEnvelope}
+% \begin{macro}{\@ChangeEnvelopeStar}
+% This macro writes |\@SetEnvelope| to the |.aux| file. It has
+% two forms: starred and and unstarred. In the unstarred mode it also
+% writes |\@startlabels| to the |.aux| file. In the unstarred form it
+% does not.
+% Since we want to treat \emph{both} stars and optional arguments, we
+% introduce two internal commands that can be invoked by the main
+% macro.
+% \begin{macrocode}
+\def\ChangeEnvelope{\@ifstar{\@ChangeEnvelopeStar}{\@ChangeEnvelope}}
+\newcommand\@ChangeEnvelopeStar[3][0pt]{%
+ \if@filesw\immediate\write\@auxout{%
+ \string\@SetEnvelope[#1]{#2}{#3}}%
+ \fi}
+\newcommand\@ChangeEnvelope[3][0pt]{%
+ \if@filesw\immediate\write\@auxout{%
+ \string\@SetEnvelope[#1]{#2}{#3}}
+ \immediate\write\@auxout{\string\@startlabels}
+ \fi}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+%
+% \begin{macro}{\@SetEnvelope}
+% We define this command as no-op at beginning, and then redefine it
+% before reading |.aux| file.
+% \begin{macrocode}
+\def\@SetEnvelope[#1]#2#3{}
+\AtEndDocument{\let\@SetEnvelope=\SetEnvelope}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+%
+% \begin{macro}{\ChangeLabel}
+% \changes{v1.2}{1997/07/11}{Wrote new command}
+% \begin{macro}{\@ChangeLabel}
+% \begin{macro}{\@ChangeLabelStar}
+% This macro writes |\@SetLabel| to the |.aux| file. It has
+% two forms: starred and and unstarred. In the unstarred mode it also
+% writes |\@startlabels| to the |.aux| file. In the unstarred form it
+% does not.
+% Since we want to treat \emph{both} stars and optional arguments, we
+% introduce two internal commands that can be invoked by the main
+% macro.
+% \begin{macrocode}
+\def\ChangeLabel{\@ifstar{\@ChangeLabelStar}{\@ChangeLabel}}
+\newcommand\@ChangeLabelStar[7]{%
+ \if@filesw\immediate\write\@auxout{%
+ \string\@SetLabel{#1}{#2}{#3}{#4}{#5}{#6}{#7}}%
+ \fi}
+\newcommand\@ChangeLabel[7]{%
+ \if@filesw\immediate\write\@auxout{%
+ \string\@SetLabel{#1}{#2}{#3}{#4}{#5}{#6}{#7}}
+ \immediate\write\@auxout{\string\@startlabels}
+ \fi}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+%
+% \begin{macro}{\@SetLabel}
+% We define this command as no-op at beginning, and then redefine it
+% before reading |.aux| file.
+% \begin{macrocode}
+\def\@SetLabel#1#2#3#4#5#6#7{}
+\AtEndDocument{\let\@SetLabel=\SetLabel}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+%
+% \begin{macro}{\ChangeBigLabel}
+% \changes{v1.2}{1997/07/13}{Wrote new command}
+% \begin{macro}{\@ChangeBigLabel}
+% \begin{macro}{\@ChangeBigLabelStar}
+% This macro writes |\@SetBigLabel| to the |.aux| file. It has
+% two forms: starred and and unstarred. In the unstarred mode it also
+% writes |\@startlabels| to the |.aux| file. In the unstarred form it
+% does not.
+% Since we want to treat \emph{both} stars and optional arguments, we
+% introduce two internal commands that can be invoked by the main
+% macro.
+% \begin{macrocode}
+\def\ChangeBigLabel{\@ifstar{\@ChangeBigLabelStar}{\@ChangeBigLabel}}
+\newcommand\@ChangeBigLabelStar[7]{%
+ \if@filesw\immediate\write\@auxout{%
+ \string\@SetBigLabel{#1}{#2}{#3}{#4}{#5}{#6}{#7}}%
+ \fi}
+\newcommand\@ChangeBigLabel[7]{%
+ \if@filesw\immediate\write\@auxout{%
+ \string\@SetBigLabel{#1}{#2}{#3}{#4}{#5}{#6}{#7}}
+ \immediate\write\@auxout{\string\@startlabels}
+ \fi}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+%
+% \begin{macro}{\@SetLabel}
+% We define this command as no-op at beginning, and then redefine it
+% before reading |.aux| file.
+% \begin{macrocode}
+\def\@SetBigLabel#1#2#3#4#5#6#7{}
+\AtEndDocument{\let\@SetBigLabel=\SetBigLabel}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+%
+% \section{Reimplementation of the \cs{opening} command}
+% \DescribeMacro{\re}
+% Some people like to put below the address information like
+% \begin{quote}
+% Re: our recent talk
+% \end{quote}
+% A way to do this is to include it in the address like this:
+% \begin{verbatim}
+% \begin{letter}{%
+% Dr.~Austin Tankel\\
+% Some University\\
+% Anytown, Pa 12345\\[1ex]
+% Re: Our recent talk}
+% \opening{Dear Austin:}
+% \end{verbatim}
+% However, this additional info will be put in the mailing label,
+% which is wrong. Here we describe a macro that works like this:
+% \begin{verbatim}
+% \begin{letter}{%
+% Dr.~Austin Tankel\\
+% Some University\\
+% Anytown, Pa 12345}
+% \re{Our recent talk}
+% \opening{Dear Austin:}
+% \end{verbatim}
+%
+%
+% Now, the implementation.
+% First, lets us check whether the option "re" is chosen (otherwise we
+% don't bother to redefine the commands):
+% \begin{macrocode}
+\if@EL@redefine@opening
+% \end{macrocode}
+%
+% \begin{macro}{\re}
+% \changes{v1.2}{1997/07/14}{Wrote new command}
+% \begin{macro}{\recontentents}
+% \changes{v1.2}{1997/07/14}{Wrote new command}
+% The command "\re" just defines "\recontents". Also, we initialize
+% "\recontents" to be initially empty
+% \begin{macrocode}
+ \newcommand*{\re}[1]{\def\recontents{#1}}%
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+%
+%
+% \begin{macro}{\ReName}
+% \changes{v1.2}{1997/07/14}{Wrote new command}
+% By default it is just plain style ``Re: '' (note the space!)
+% \begin{macrocode}
+ \def\ReName{Re: }%
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\opening}
+% \changes{v1.2}{1997/07/14}{Reimplemented standard command
+% \cs{opening}}
+% Now we redefine the standard "\opening" command to include the "\re"
+% info. Here is the quote from the standard "letter"
+% class~\cite{letter}:
+% \begin{quotation}
+% Text is begun with the |\opening| command, whose argument
+% generates the salutation, as in
+%\begin{verbatim}
+% \opening{Dear Henry,}
+%\end{verbatim}
+% This should produce everything up to and including the
+% `Dear Henry,' and a |\par| command that follows.
+% Since there's a |\vfil| at the bottom of every page,
+% it can add vertical fill to position a short letter.
+% It should use the following commands:
+% \begin{itemize}
+% \item |\toname| : name part of `to' address.
+% Will be one line long.
+% \item |\toaddress| : address part of `to' address.
+% The lines separated by |\\|.
+% \item |\fromname| : name of sender.
+% \item |\fromaddress| : argument of current |\address|
+% declaration-- null if none. Should use standard institutional
+% address if null.
+% \item |\fromlocation| : argument of current |\location|
+% declaration--null if none.
+% \item |\telephonenum| : argument of current |\telephone|
+% declaration--null if none.
+% \end{itemize}
+% \end{quotation}
+% We just "\ReName" and "\recontents" here\ldots
+% \begin{macrocode}
+ \renewcommand*{\opening}[1]{\ifx\@empty\fromaddress
+ \thispagestyle{firstpage}%
+ {\raggedleft\@date\par}%
+ \else % home address
+ \thispagestyle{empty}%
+ {\raggedleft\begin{tabular}{l}\ignorespaces
+ \fromaddress \\*[2\parskip]%
+ \@date \end{tabular}\par}%
+ \fi
+ \vspace{2\parskip}%
+ {\raggedright \toname \\ \toaddress \par}%
+ \ifx\@empty\recontents\relax
+ \else
+ {\raggedright \ReName \recontents \par}%
+ \fi
+ \vspace{2\parskip}%
+ #1\par\nobreak}%
+% \end{macrocode}
+% \end{macro}
+%
+% Now we close \cs{if@EL@redefine@opening}:
+% \begin{macrocode}
+\fi
+% \end{macrocode}
+%
+% And the last line:
+% \begin{macrocode}
+%</package>
+% \end{macrocode}
+%
+% \Finale
+%
+% \clearpage
+% \addcontentsline{toc}{section}{\protect\refname}
+% \begin{thebibliography}{1}
+% \bibitem{Enum}
+% David Carlisle.
+% \newblock {\em The \textsf{enumerate} package}.
+% \newblock {CTAN}, v2.02 edition, January 1994.
+% \bibitem{letter}
+% Leslie Lamport, Frank Mittelbach, and Rainer Sch{\"o}pf.
+% \newblock Standard letter document class for {\LaTeX} version 2e.
+% \newblock CTAN, 199c.
+% \bibitem{Pub25}
+% USPS.
+% \newblock {\em Designing Business Letter Mail (Pub 25)}, August 1995.
+% \end{thebibliography}
+%
+% \clearpage
+% \addcontentsline{toc}{section}{Change History}
+% \PrintChanges
+%
+% \clearpage
+% \addcontentsline{toc}{section}{Index}
+% \PrintIndex
+%
+\endinput
+
projects / mit-stationery-latex / commitdiff