Fixed nested underlining

[latex-mlastyle.git] / mlastyle.dtx

% \iffalse meta-comment
%
% Copyright (C) 2003 by Tim Pope <latex@rebelongto.us>
% ----------------------------------------------------
% 
% This file may be distributed and/or modified under the
% conditions of the LaTeX Project Public License, either version 1.2
% of this license or (at your option) any later version.
% The latest version of this license is in:
%
%    http://www.latex-project.org/lppl.txt
%
% and version 1.2 or later is part of all distributions of LaTeX 
% version 1999/12/01 or later.
%
% \fi
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% \iffalse
%<package>\NeedsTeXFormat{LaTeX2e}[1999/12/01]
%<package>\ProvidesPackage{mlastyle}
%<package>   [2003/11/09 v0.9 MLA format and documentation style]
%
%<*driver>
\documentclass[draft]{ltxdoc}
\iftrue
  \usepackage[compat]{mlastyle}
  \addtolength{\headsep}{-5pt}
  %\addtolength{\headheight}{-12pt}
  \addtolength{\topmargin}{-17pt}
  \addtolength{\textheight}{22pt}
  \IfFileExists{ulem.sty}{\usepackage[normalem]{ulem}}{\let\uline\emph}
\else
  \usepackage[mla]{mlastyle}
  \addtolength{\marginparwidth}{1in}
  \addtolength{\textwidth}{-1in}
  \addtolength{\headwidth}{-1in}
\fi
\IfFileExists{times.sty}%
{\newcommand{\examp}[2][]{{\let\emph\uline\fontfamily{ptm}\selectfont##2}##1}}%
{\newcommand{\examp}[2][]{``##2##1''}}

\EnableCrossrefs
\CodelineIndex
\RecordChanges
%\OnlyDescription
\begin{document}
  \DocInput{mlastyle.dtx}
\end{document}
%</driver>
% \fi
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% \CheckSum{0}
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%
%
% \changes{v0.9}{2003/11/09}{Converted to \texttt{dtx} file}
% \changes{v0.8}{2003/10/15}{Initial version}
%
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%
% \newcommand{\Lopt}[1]{\textsf {#1}}
% \newcommand{\file}[1]{\texttt {#1}}
% \newcommand{\package}[1]{\textsf {#1}}
% ^^A\newcommand{\Lcount}[1]{\textsl {\small#1}}
% ^^A\newcommand{\pstyle}[1]{\textsl {#1}}
%
% \newcommand{\OptionIndex}[1]{\index{#1\actualchar\Lopt{#1} (option)\encapchar usage}\index{options:\levelchar\Lopt{#1}}}
%
% \title{The \package{mlastyle} package\thanks{This document
%   corresponds to \package{mlastyle}~\fileversion, dated \filedate.}}
% \author{Tim Pope \\ \texttt{latex@rebelongto.us}}
% \surname{Pope}
%
% \maketitle
% \tableofcontents
%
% \section{Introduction}
%
% MLA style, consisting of a set of documentation conventions, has
% gained widespread acceptance in the humanities.  \LaTeX{} is a
% document preparation system enjoying popularity in the scientific field.
% It should come as no surprise that complete, up-to-date implementations
% of MLA style for \LaTeX{} are in short supply.  The \LaTeX{} package
% \package{mlastyle} aims to fill this void.
%
% \section{Usage}
%
% A sample document follows.
% \begin{verbatim}
%\documentclass[12pt]{article}
%\usepackage{mlastyle}
%
%\author{John Doe}
%\instructor{Professor Smith}
%\course{English 101}
%\date{1~Jan.\ 1970}
%\title{The Inherent Sadism of Compulsory English Classes}
%
%\begin{document}
%\maketitle
%'Nuff said.
%\end{document}\end{verbatim}
% \subsection{Initialization Macros}
% The \index{heading|usage}mandatory heading is generated with
% \DescribeMacro{\maketitle}|\maketitle|.  Use the standard macros
% |\author|, |\title|, and |\date| to specify the relevant information.
% To define the instructor and name of the course, use the aptly named
% \DescribeMacro{\instructor}|\instructor|\marg{instructor} and
% \DescribeMacro{\course}|\course|\marg{course} macros.
%
% The last name for use in the header\index{header|usage} is derived from
% |\author|.  If this does not produce the desired result, use
% \DescribeMacro{\surname}|\surname|\marg{last name} to override it.
%
% MLA style recommends the DD~Mon.~YYYY format for specifying dates;
% \DescribeMacro{\today}|\today| has been conveniently redefined to this.
% However, other formats can be used as long as done so consistently
% throughout the document.  Also note that the date in the
% heading\index{heading|usage} should be the due date of the assignment;
% students who finish assignments early would be wise to call
% |\date|\marg{due date}.
%
% \subsection{Environments}
% Three environments have been modified from standard \LaTeX to better
% suit MLA format.  To typeset \index{poetry|usage}poetry and
% \index{drama|usage}drama, use the \DescribeEnv{verse}|verse|
% environment.  Quotations\index{quotations|usage} of a single paragraph
% or less always use the \DescribeEnv{quote}|quote| environment.  For
% longer passages, use the \DescribeEnv{quotation}|quotation| environment
% if the beginning of the passage marks the beginning of a paragraph.
% Otherwise, use the |quote| environment.
%
% Be sure to follow MLA guidelines when using these environments.  Short
% quotes should be enclosed in quotation marks and included directly in
% the text.
%
% \subsection{Modes of Operation}
% The \package{mlastyle} package has four basic modes of operations,
% selected with one of four mutually exclusive options.  The
% \OptionIndex{format}\Lopt{format}
% option tells \package{mlastyle} to use MLA format (i.e., 1 inch margins,
% double-spaced, etc.).  The \OptionIndex{style}\Lopt{style} option tells
% \package{mlastyle} to use MLA style (i.e., the format of parenthetical
% documentation, etc).  Each of these options
% disables the other; to use both MLA format and MLA style, specify the
% \OptionIndex{mla}\Lopt{mla} option, or nothing at all.
%
% To disable both MLA style and MLA format, use the
% \OptionIndex{compat}\Lopt{compat} option.  This differs from omitting
% the package entirely in that certain macros are still defined (e.g.,
% |\instructor|).  Also, citations are handled a bit differently than in
% standard \LaTeX{} (see section~\ref{sec:documentation}).
%
% In addition to the above, several other options modify the behavior of
% \package{mlastyle}.
%
% \subsubsection{Italics vs.\ Underlining} \index{underlining|usage}
% \index{italics|usage}
% MLA format dictates that emphasis should be indicated by underlining the
% text.  Thus, the \package{ulem} package, which underlines all emphasized
% text, is loaded by default in \Lopt{mla} and \Lopt{format} modes.  To
% disable this, use the \OptionIndex{italics}\Lopt{italics} option.
% Conversely, if underlining is desired in \Lopt{style} or \Lopt{compat}
% mode, the \OptionIndex{underline}\Lopt{underline} option can be used.
%
% \subsubsection{Fonts}
% By default, \package{mlastyle} uses \TeX's standard Computer Modern
% font.  Some profess\-ors\penalty500---particularly those
% concerned with document length---require assignments to be set in
% \examp[.]{Times New Roman}  This can be achieved with the
% \OptionIndex{times}\Lopt{times} option, which simply loads the
% \package{times} package.  This opposite of this option is
% \OptionIndex{cm}\Lopt{cm}, which reverts to Computer Modern.
%
% \index{works cited|usage}
% \subsection{Documenting Sources} \label{sec:documentation}
%
% The \package{mlastyle} package reimplements the
% \DescribeEnv{thebibliography}|thebibliography| environment to generate
% the list of works cited in MLA style.  Instruction in the basic use of
% \LaTeX's bibliography features is beyond the scope of this document;
% however, the following example, which should be included just before
% |\end{document}|, might prove to be a useful starting point:
%\begin{verbatim}
%\begin{thebibliography}{}
%
%\bibitem[Lamport]{latex}
%Lamport, Leslie.
%\newblock {\em \LaTeX: A Document Preparation System}.
%\newblock 2nd.~ed.
%\newblock Reading: Addison-Wesley, 1994.
%
%\end{thebibliography}\end{verbatim}
%
% In this example, |Lamport| is the author's last name (for use in
% citations) and |latex| is the marker used to reference it (see
% section~\ref{sec:parenthetical}).
%
% For information on automatically generating the list of works cited with
% \BibTeX, see section~\ref{sec:bibtex}.
%
% \subsubsection{Parenthetical Documentation} \label{sec:parenthetical}
% A simple citation can by achieved with a call to
% \DescribeMacro{\cite}|\cite|\oarg{pages}\marg{marker}, where
% marker refers to the key given to either
% \index{BibTeX=\BibTeX|usage}\BibTeX{} or the |\bibitem| macro (|latex|
% in the above example).
% Omit \oarg{pages} if the source has no page numbers.
% Multiple sources can be cited using the syntax
% |\cite|\oarg{pages}|{|\meta{marker
% 1}\texttt{,}\penalty\exhyphenpenalty\meta{marker 2}\ldots|}|; however, page
% numbers can currently be specified only for the last referenced source.
% To work around this limitation, use |\citeN|, explained below.
%
% Three additional citation commands are provided, all of which take the
% same arguments as |\cite|.  To omit the author information from the
% citation, use \DescribeMacro{\citepage}|\citepage|.  Indirect
% citations---those of the format \examp{(qtd. in Brown 6)}---can be
% created with \DescribeMacro{\citeindirect}|\citeindirect|.  Finally, the
% parentheses are omitted by \DescribeMacro{\citeN}|\citeN|.  This was
% intended for use in cross references, but it can also help in citing
% multiple works.  The result of
% |(\citeN[42]{knuth}|\texttt{; }|\citeN[69]{lamport})|
% would be something like \examp[.]{(Knuth 42; Lamport 69)}
%
% \subsubsection{Using {\rm \BibTeX}} \label{sec:bibtex}
% Coupled with \index{BibTeX=\BibTeX|usage}\BibTeX,
% \package{mlastyle} provides a experimental implementation of MLA
% documentation style.  Put\SpecialUsageIndex{\bibliographystyle}
% |\bibliographystyle{mlastyle}| in the document preamble to load the
% bibliography style.  Alternatively, the
% \OptionIndex{bibstyle}\Lopt{bibstyle} option can handle this
% automatically, loading a bibliography style of |mlastyle| in \Lopt{mla}
% and \Lopt{style} modes and a bibliography style of |plain| in
% \Lopt{format} and \Lopt{compat} modes.
%
% Use of \BibTeX{} is also beyond the scope of this document; instead,
% another example is provided.  To use it, substitute
% |\bibliography|\marg{filename} for the |thebibliography| environment.
% Then create \meta{filename}\file{.bib} with the contents below.
% Generating the document entails running \file{latex} on the \file{.tex}
% file, \file{bibtex} on the resulting \file{.aux} file, then \file{latex}
% twice more.
%\begin{verbatim}
%@BOOK{latex,
%  AUTHOR = "Leslie Lamport",
%  TITLE = "\LaTeX: A Document Preparation System",
%  KEY = "\LaTeX",
%  EDITION = "Second",
%  ADDRESS = "Reading",
%  PUBLISHER = "Addison-Wesley",
%  YEAR = "1994"}\end{verbatim}
% In \package{mlastyle}, The |KEY| field serves the additional purpose of
% specifying an abbreviated title.  This is unnecessary in the above
% example.  If an additional book by Leslie Lamport was included, however,
% the |KEY| field would allow |\cite{lamport}| to yield \examp{(Lamport,
% \emph{\LaTeX\/})} instead of \examp[.]{(Lamport, \emph{\LaTeX: A Document
% Preparation System\/})}
%
% \StopEventually{\PrintChanges\PrintIndex}
%
% \section{Implementation}
%    \begin{macrocode}
%<*package>
%    \end{macrocode}
%
% \subsection{Options}
% \begin{macro}{\ifmlastyle@*}
% \begin{macro}{\mlastyle@*true}
% \begin{macro}{\mlastyle@*false}
% Most options are implemented by modifying a |\newif| declared for that
% purpose.
%    \begin{macrocode}
\newif\ifmlastyle@bibstyle
\DeclareOption{bibstyle}{\mlastyle@bibstyletrue}
\DeclareOption{nobibstyle}{\mlastyle@bibstylefalse}
\newif\ifmlastyle@papersize
\DeclareOption{papersize}{\mlastyle@papersizetrue}
\DeclareOption{nopapersize}{\mlastyle@papersizefalse}
\newif\ifmlastyle@underline
\DeclareOption{underline}{\mlastyle@underlinetrue}
\DeclareOption{italics}{\mlastyle@underlinefalse}
\newif\ifmlastyle@times
\DeclareOption{times}{\mlastyle@timestrue}
\DeclareOption{cm}{\mlastyle@timesfalse}
\newif\ifmlastyle@style
\DeclareOption{compat}{\mlastyle@stylefalse
        \mlastyle@formatfalse
        \mlastyle@underlinefalse}
\DeclareOption{mla}{\mlastyle@styletrue
        \mlastyle@formattrue
        \mlastyle@underlinetrue}
\newif\ifmlastyle@format
\DeclareOption{format}{\mlastyle@stylefalse
        \mlastyle@formattrue
        \mlastyle@underlinetrue}
\DeclareOption{style}{\mlastyle@styletrue
        \mlastyle@formatfalse
        \mlastyle@underlinefalse}
\DeclareOption{singlespacequotes}{
  \def\mlastyle@qspread{\linespread{1}\selectfont\vskip\baselineskip}}
\DeclareOption{doublespacequotes}{\let\mlastyle@qspread\relax}
\ExecuteOptions{nobibstyle,nopapersize,mla,cm,doublespacequotes}
\ProcessOptions
%    \end{macrocode}
% \end{macro}
% \end{macro}
% \end{macro}
% If the \Lopt{papersize} option is set, add the appropriate
% \textsc{PostScript} special, or adjust |\pdfpagewidth| and
% |\pdfpageheight| if pdf\LaTeX{} is in use.
%    \begin{macrocode}
\ifmlastyle@papersize
  \ifx\@undefined\pdfpagewidth
    \special{papersize=\the\paperwidth,\the\paperheight}
  \else
    \setlength{\pdfpagewidth}{\paperwidth}
    \setlength{\pdfpageheight}{\paperheight}
  \fi
\fi % \ifmlastyle@papersize
%    \end{macrocode}
% If the \Lopt{bibstyle} option is set, specify the bibliography style.
%    \begin{macrocode}
\ifmlastyle@bibstyle
  \ifmlastyle@style
    \bibliographystyle{mlastyle}
  \else
    \bibliographystyle{plain}
  \fi
\fi % \ifmlastyle@bibstyle
%    \end{macrocode}
% \begin{macro}{\UL@onin}
% Load the \package{ulem} package if the \Lopt{underline} option is set.
% By default, \package{ulem} does multiple underlining for nested
% emphasis.  This is changed to MLA-style behavior with the redefinition
% of |\UL@onin|.
%    \begin{macrocode}
\ifmlastyle@underline
  \RequirePackage{ulem}
  \def\UL@onin#1{\egroup\UL@stop#1\UL@start}
\fi % \ifmlastyle@underline
%    \end{macrocode}
% \end{macro}
% Load the \package{times} package if the \Lopt{times} option is set.
%    \begin{macrocode}
\ifmlastyle@times
  \RequirePackage{times}
\fi % \ifmlastyle@times
%    \end{macrocode}
% \subsection{Macros}
% \begin{macro}{\instructor}
% Define the instructor, along with an obsolete synonym.
%    \begin{macrocode}
\def\instructor#1{\gdef\mlastyle@instructor{#1}}
\let\professor\instructor
%    \end{macrocode}
% \end{macro}
% \begin{macro}{\course}
% Define the course, along with an obsolete synonym.
%    \begin{macrocode}
\def\course#1{\gdef\mlastyle@course{#1}}
\let\classname\course
%    \end{macrocode}
% \end{macro}
% \begin{macro}{\surname}
% Define the surname, along with an obsolete synonym.
%    \begin{macrocode}
\def\surname#1{\gdef\mlastyle@surname{#1}}
\def\mlastyle@surname{\def\sw@llow##1 {}\expandafter\sw@llow\@author}
\let\lastname\surname
%    \end{macrocode}
% \end{macro}
% \subsection{Formatting}
% Formatting is done if the \Lopt{mla} or \Lopt{format} option is set.
%    \begin{macrocode}
\ifmlastyle@format
%    \end{macrocode}
% \subsubsection{Macros}
% \begin{macro}{\maketitle}
% |\maketitle| generates a heading in MLA format.
%    \begin{macrocode}
  \renewcommand{\maketitle}{\begin{flushleft}
    \@author\par
    \@ifundefined{mlastyle@instructor}{}{\mlastyle@instructor}\par
    \@ifundefined{mlastyle@course}{}{\mlastyle@course}\par
    \@date\end{flushleft}
    \begin{center}\@title\end{center}\par
  }
%    \end{macrocode}
% \end{macro}
% \begin{macro}{\today}
% |\today| is redefined to DD~Mon.~YYYY format.
%    \begin{macrocode}
\def\today{\number\day~\ifcase\month\or
  Jan.\or Feb.\or Mar.\or Apr.\or May\or June\or July\or 
  Aug.\or Sept.\or Oct.\or Nov.\or Dec.\fi\ \number\year}
%    \end{macrocode}
% \end{macro}
% \begin{macro}{\slash}
% No penalty for |\slash|, and plain /'s permit line breaks if necessary.
% ^^A\let\mlastyle@sl@sh=/
%    \begin{macrocode}
  \def\slash{/\penalty\z@}
  \def\mlastyle@slash{/\futurelet\mlastyle@slashnext\mlastyle@slashx}
  \def\mlastyle@slashx{\ifx\mlastyle@slashnext/\else
    \penalty\exhyphenpenalty\fi}
%    \end{macrocode}
% \end{macro}
% \begin{macro}{\section}
% \begin{macro}{\subsection}
% Sections are formatted by centering the section name and beginning a new
% page.  Subsections simply center the section name.
%    \begin{macrocode}
  \renewcommand{\section}{\clearpage\@startsection{section}{1}{\z@
    }{0pt}{1sp}{\centering}}
  \renewcommand{\subsection}{\@startsection{subsection}{2}{\z@
    }{0pt}{1sp}{\centering}}
  \renewcommand{\subsubsection}{\@startsection{subsubsection}{3}{\z@
    }{0pt}{1sp}{\centering}}
%    \end{macrocode}
% ^^A\let\mlastyle@vfont\verbatim@font
% ^^A\def\verbatim@font{\mlastyle@qspread\mlastyle@vfont}
% \end{macro}
% \end{macro}
% \subsubsection{Environments}
% ^^A%\newenvironment{blocks}{\begin{quote} \linespread{1} \selectfont}{\end{quote} \linespread{2} \small \selectfont}
% ^^A%\newenvironment{blockm}{\begin{quotation} \linespread{1} \selectfont}{\end{quotation} \linespread{2} \selectfont}
% \begin{environment}{verse}
% Indented 1 inch, with an additional .25 inch hanging indent.
%    \begin{macrocode}
  \renewenvironment{verse}{\list{}{\mlastyle@qspread
    \advance\leftmargin.75in\itemindent-.25in
    \listparindent\itemindent}\item\relax}{\endlist}
%    \end{macrocode}
% \end{environment}
% \begin{environment}{quotation}
% Indented 1 inch, with a paragraph indent of an additional .25 inches.
%    \begin{macrocode}
  \renewenvironment{quotation}{\list{}{\mlastyle@qspread
    \advance\leftmargin.5in\itemindent.25in
    \listparindent\itemindent}\item\relax}{\endlist}
%    \end{macrocode}
% \end{environment}
% \begin{environment}{quote}
% Identical to the |quotation| environment, except the first paragraph is not
% indented.
%    \begin{macrocode}
  \renewenvironment{quote}{\list{}{\mlastyle@qspread
    \advance\leftmargin.5in
    \listparindent.25in}\item\relax}{\endlist}
%    \end{macrocode}
% \end{environment}
% \begin{environment}{workscited}
% Works cited environment, for compatibility with \package{mla-paper}.
%    \begin{macrocode}
  \newenvironment{workscited}%
    {\newpage{\centerline{Works Cited}}}{\newpage}
  \newcommand{\bibent}{\noindent \hangindent .5in}
%    \end{macrocode}
% \end{environment}
% \subsubsection{Margins}
% Top and bottom margins are 1 inch each.  The header is flush with the
% right margin at .5 inches from the top of the page.
% ^^A\addtolength{\headheight}{-1pt}
% ^^A\setlength{\headheight}{1.4\headheight}% kludge
%    \begin{macrocode}
  \addtolength{\voffset}{-0.5in}
  \setlength{\textheight}{\paperheight}
  \addtolength{\textheight}{-2in}
  \setlength{\topmargin}{0in}
  \setlength\headheight\f@baselineskip
  \setlength{\headsep}{0.5in}
  \addtolength{\headsep}{-\headheight}
  \setlength{\footskip}{0.25in}
  \raggedbottom
%    \end{macrocode}
% Left and right margins in MLA format are each 1 inch wide.
%    \begin{macrocode}
  \addtolength{\hoffset}{-0.5in}
  \setlength{\textwidth}{\paperwidth}
  \addtolength{\textwidth}{-2in}
  \setlength{\oddsidemargin}{0.5in}
  \setlength{\evensidemargin}{0.5in}
  \setlength{\marginparwidth}{0.5in}
%    \end{macrocode}
% \subsubsection{Paragraphs}
% Paragraphs should be left justified, with the first line indented .5
% inches.
%    \begin{macrocode}
  \raggedright
  \setlength{\parindent}{.5in}
%    \end{macrocode}
% MLA format specifies that all paragraphs should be indented, even those
% beginning a new section.  This snippet from \package{indentfirst} changes
% \LaTeX{} to meet that requirement.
%    \begin{macrocode}
  \let\@afterindentfalse\@afterindenttrue
  \@afterindenttrue
%    \end{macrocode}
% Double space {\em everywhere}.
% ^^A\RequirePackage{doublespace}
%    \begin{macrocode}
  \linespread{2.0}
  \leftmargini\parindent
  \def\@listi{\leftmargin\leftmargini
  \parsep\z@\itemsep\z@\topsep -3\p@\relax}
  \let\@listI\@listi
  \@listi
  \def\@listii{\leftmargin\leftmarginii
  \parsep\z@\itemsep\z@\topsep -3\p@\relax}
  \def\@listiii{\leftmargin\leftmarginiii
  \parsep\z@\itemsep\z@\topsep -3\p@\relax}
  \def\@listiv{\leftmargin\leftmarginiv
  \parsep\z@\itemsep\z@\topsep -3\p@\relax}
  \def\@listv{\leftmargin\leftmarginv
  \parsep\z@\itemsep\z@\topsep -3\p@\relax}
  \def\@listvi{\leftmargin\leftmarginvi
  \parsep\z@\itemsep\z@\topsep -3\p@\relax}
%    \end{macrocode}
% \subsubsection{Header}
% The last name and page number appear on every page, including the first.
%    \begin{macrocode}
  \RequirePackage{fancyhdr}
  \fancypagestyle{plain}{\fancyhf{}}
  \fancypagestyle{mlastyle}{
    \fancyhf{}
    \rhead{\mlastyle@surname{} \thepage}
    \renewcommand{\headrulewidth}{0pt}
    \renewcommand{\footrulewidth}{0pt}}
  \pagestyle{mlastyle}
%    \end{macrocode}
% \subsubsection{Notes}
% Footnotes should be indented .5 inches; however .56 inches is used
% in a crude attempt to compensate for
% the alignment provided by the \package{footmisc} package.  Endnotes are
% preferred in MLA style anyway, so this should not be a problem in most
% circumstances.
%    \begin{macrocode}
  \RequirePackage[ragged,norule]{footmisc}
  \def\footnotelayout{\linespread{1}\footnotesize\raggedright{} }
  \footnotemargin .56in
  \skip\footins=2\baselineskip
  \footnotesep 1.2\footnotesep
  \addtolength\footnotesep{\baselineskip}
  \def\footnotesize{\normalsize}
%    \end{macrocode}
% ^^A\let\footnoterule\relax
% Endnotes are supported, but only if the \package{endnotes} package is
% loaded {\em before\/} this package.
%    \begin{macrocode}
  \ifx\@undefined\endnote\else
    \def\enoteheading{\newpage\section*{\notesname}}
    \def\enoteformat{\leavevmode\makeenmark{} }
    \def\enotesize{\normalsize}
  \fi
%    \end{macrocode}
% \subsubsection{Bibliography}
% \begin{environment}{thebibliography}
% The definition of |\thebibliography| varies depending on the document
% class.
%    \begin{macrocode}
  \@ifundefined{chapter}
%    \end{macrocode}
% Article class.
%    \begin{macrocode}
  { \def\thebibliography#1{\newpage\section*{\refname}
      \list{\@biblabel{\@arabic\c@enumiv}}%
      {\settowidth\labelwidth{\@biblabel{#1}}}
      \leftmargin\labelwidth
      \advance\leftmargin\labelsep
      \itemindent-\leftmargin
      \def\newblock{}
      \usecounter{enumiv}
      \sloppy%\sfcode`\.=1000\relax
      \catcode`/=13\let/=\mlastyle@slash}}
%    \end{macrocode}
% Report/book class.
%    \begin{macrocode}
  { \def\thebibliography#1{\chapter*{\bibname}
      \list{\@biblabel{\@arabic\c@enumiv}}%
      {\settowidth\labelwidth{\@biblabel{#1}}}
      \leftmargin\labelwidth
      \advance\leftmargin\labelsep
      \itemindent-\leftmargin
      \def\newblock{}
      \usecounter{enumiv}
      \sloppy%\sfcode`\.=1000\relax
      \catcode`/=13\let/=\mlastyle@slash}}
%    \end{macrocode}
% \end{environment}
%    \begin{macrocode}
\fi % \ifmlastyle@format
%    \end{macrocode}
% \subsection{Style}
% \begin{macro}{\cite}
% \begin{macro}{\citeN}
% ^^A\begin{macro}{\citepage}
% ^^A\begin{macro}{\citequote}
% The following macros, combined with \file{mlastyle.bst}, provide
% for a bibliography in MLA style.  Note that the definition of |\cite|,
% |\citeN|, etc.\ vary depending on the options passed to
% \package{mlastyle}.
%
% \begin{macro}{\mlastyle@intcite}
% The original |\cite| is stored
% in |\mlastyle@intcite|.
%    \begin{macrocode}
\let\mlastyle@intcite\cite
%    \end{macrocode}
% \end{macro}
% \begin{macro}{\mlastyle@relax}
% This macro does nothing.  Depending on the options, either |\citeC| or
% |\citeM| and its ilk will utilize it.
%    \begin{macrocode}
\newcommand{\mlastyle@relax}[2][]{}
%    \end{macrocode}
% \end{macro}
% \subsubsection{MLA Style}
% \begin{macro}{\citeM}
% If the \Lopt{mla} or \Lopt{style} options are used, the following is
% executed.
%    \begin{macrocode}
\ifmlastyle@style
  \def\@cite#1#2{(#1\if@tempswa{} #2\fi)}
  \def\cite{\def\@cite##1##2{(##1\if@tempswa{}
    ##2\fi)}\mlastyle@intcite}
  \def\citeN{\def\@cite##1##2{##1\if@tempswa{}
    ##2\fi}\mlastyle@intcite}
  \def\citeM{\def\@cite##1##2{ (##1\if@tempswa{}
    ##2\fi)}\mlastyle@intcite}
  \def\citepage{\def\@cite##1##2{\if@tempswa(##2)\fi}\mlastyle@intcite}
  \def\citepageM{\def\@cite##1##2{\if@tempswa{}
    (##2)\fi}\mlastyle@intcite}
  \def\citeindirect{\def\@cite##1##2%
  {(qtd. in ##1\if@tempswa{} ##2\fi)}\mlastyle@intcite}
  \def\citeindirectM{\def\@cite##1##2%
  { (qtd. in ##1\if@tempswa{} ##2\fi)}\mlastyle@intcite}
  \let\citeC\mlastyle@relax
%    \end{macrocode}
% \end{macro}
% \iffalse
% Place commas in-between citations in the same |\citeyear|, |\citeyearNP|,
% |\citeN|, or |\shortciteN| command.
% Use something like |\citeN{ref1,ref2,ref3}| and |\citeN{ref4}| for a list.
%
% \@citedata and \@citedatax:
%  \def\@citedata{%
%    \@ifnextchar [{\@tempswatrue\@citedatax}%
%                {\@tempswafalse\@citedatax[]}%
%  }
%  \def\@citedatax[#1]#2{%
%  \let\@citea\@empty
%  \if@filesw\immediate\write\@auxout{\string\citation{#2}}\fi%
%    \def\@citea{}\@cite{\@for\@citeb:=#2\do%
%      {\@citea\def\@citea{; }\@ifundefined% by Young
%        {b@\@citeb}{{\bf ?}%
%        \@warning{Citation `\@citeb' on page \thepage \space undefined}}%
%  {\csname b@\@citeb\endcsname}}}{#1}}%
% \fi
% \begin{macro}{\@citex}
% This is the original |\@citex| from \LaTeX{} modified to use semicolons.
%    \begin{macrocode}
\def\@citex[#1]#2{%
  \let\@citea\@empty
  \@cite{\@for\@citeb:=#2\do
    {\@citea\def\@citea{;\penalty-1\ }%
     \edef\@citeb{\expandafter\@firstofone\@citeb\@empty}%
     \if@filesw\immediate\write\@auxout{\string\citation{\@citeb}}\fi
     \@ifundefined{b@\@citeb}{\mbox{\reset@font\bfseries ?}%
       \G@refundefinedtrue
       \@latex@warning
         {Citation `\@citeb' on page \thepage \space undefined}}%
       {{\csname b@\@citeb\endcsname}}}}{#1}}
%    \end{macrocode}
% \end{macro}
% \begin{macro}{\@biblabel}
% No labels in the bibliography.
%    \begin{macrocode}
  \def\@biblabel#1{#1}
  \labelsep\z@
  \let\mlastyle@intbib\thebibliography
  \def\thebibliography#1{\mlastyle@intbib{#1}
    \itemindent-\leftmargin\def\@biblabel##1{}}
%    \end{macrocode}
% \end{macro}
% Title either the bibliography or the references ``Works Cited,''
% depending on the document class.
%    \begin{macrocode}
  \@ifundefined{chapter}
  {\renewcommand\refname{Works Cited}}
  {\renewcommand\bibname{Works Cited}}
%    \end{macrocode}
%
% ^^A% Define the command \workscited{bib}{style}{nocite}
% ^^A%\newcommand{\workscited}[3]{%
% ^^A%  \ifx\chapter\@undefined%
% ^^A%    \addcontentsline{toc}{chapter}{\bfseries\bibname}% report style
% ^^A%  \else
% ^^A%    \addcontentsline{toc}{section}{\bfseries\refname}% article style
% ^^A%  \fi
% ^^A%  \bibliography{#1}\bibliographystyle{#2}\nocite{#3}}
% ^^A% \fi
% ^^A\newcommand{\annote}[1]{\begin{list}{}{%
% ^^A                \setlength{\labelwidth}{0pt}
% ^^A                \addtolength{\leftmargin}{\parindent}
% ^^A                \setlength{\labelsep}{0pt}}%
% ^^A                \item #1 \end{list}}
% \subsubsection{Plain Style}
% \begin{macro}{\citeC}
% This next block is used if the \Lopt{compat} or \Lopt{format} option is
% set.
%    \begin{macrocode}
\else
  \newcommand{\mlastyle@cite}[2][]{\@tempswafalse\@citex[]{#2}}
  \let\cite\mlastyle@cite
  \let\citepage\mlastyle@cite
  \let\citeindirect\mlastyle@cite
  \newcommand{\citeC}[2][]{ \@tempswafalse\@citex[]{#2}}
  \let\citeM\mlastyle@relax
  \let\citepageM\mlastyle@relax
  \let\citeindirectM\mlastyle@relax
\fi
%    \end{macrocode}
% \end{macro}
%
% ^^A\end{macro}
% ^^A\end{macro}
% \end{macro}
% \end{macro}
%    \begin{macrocode}
%</package>
%    \end{macrocode}
%
% \Finale
\endinput
% vim:tw=74