example.tex

\documentclass{mla}

\title{My Title}
\author{Lily Wolford}
\date{2 September 2014}
\class{Speech 103-03}
\professor{Dr. Melinda May}

% hyphenate right margin
\RaggedRight

\usepackage{mwe}
\begin{document}
\maketitle
\lipsum[1-12]
\end{document}

%%% Local Variables:
%%% mode: latex
%%% TeX-master: t
%%% TeX-engine: xetex
%%% TeX-PDF-mode: t
%%% End:

mla.cls

\NeedsTeXFormat{LaTeX2e}[1994/06/01]
\RequirePackage{xparse}
\ProvidesExplClass
{mla}
{2014/08/30}
{0}
{MLA Paper}

\PassOptionsToClass{12pt}{article}

\DeclareOption*{\PassOptionsToClass{\CurrentOption}{article}}
\ProcessOptions*
\LoadClass{article}

\RequirePackage { microtype }
\RequirePackage { geometry }
    \geometry
      {
        letterpaper,
        margin = 1in,
        showframe,
      }
\RequirePackage { fontspec }
    \setmainfont{Times~New~Roman}
\RequirePackage { setspace }
    \setstretch { 2 }
\RequirePackage { fancyhdr }
    \pagestyle{fancy}
    \fancyhf { }
    \cs_gset:Npn \headrulewidth { 0pt }
    \rhead
      {
        \@lastname
        \c_space_tl
        \thepage
      }


\raggedright
\dim_gset:Nn \parindent { 2em }


\RenewDocumentCommand \author { m o } {
  \cs_gset_nopar:Npn \@author {#1}
  \IfValueTF {#2} {
    \cs_gset_nopar:Npx \@lastname {#2}
  } {
    \seq_set_split:Nnn \l_tmpa_seq { ~ } {#1}
    \cs_gset_nopar:Npx \@lastname {\seq_item:Nn \l_tmpa_seq { -1 }}
  }
}

\cs_new:Npn \mla_hyphen_to_dash:n #1 {
  \tl_set:Nn \l_tmpa_tl {#1}
  \tl_replace_all:Nnn \l_tmpa_tl
    { - } { \unskip\,\textendash\,\ignorespaces }
  \tl_use:N \l_tmpa_tl
}

\NewDocumentCommand \professor { m } {
  \cs_gset:Npn \@professor { \mla_hyphen_to_dash:n {#1} }
}

\NewDocumentCommand \class { m } {
  \cs_gset:Npn \@class { \mla_hyphen_to_dash:n {#1} }
}

\RenewDocumentCommand \maketitle { } {
  \par\noindent

  \group_begin:

    \frenchspacing
    \dim_set:Nn \parindent { 0pt }
  
    \@author \newline
    \@professor \newline
    \@class \newline
    \@date \newline

  \group_end:

  \centerline{\@title}

  \par
  \thispagestyle{empty}
}

\RequirePackage { ragged2e }
\dim_gset:Nn \RaggedRightParindent { 2em }

% Local Variables:
% TeX-master: "mla"
% TeX-engine: xetex
% TeX-PDF-mode: t
% End: