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% !TEX program  = pdfLaTeX
%&lt;*internal&gt;
\iffalse
%&lt;/internal&gt;
%&lt;*readme&gt;
----------------------------------------------------------------
LEIletter --- letter class for Leiden University
E-mail: m.t.kreutzer@science.leidenuniv.nl
Released under the LaTeX Project Public License v1.3c or later
See http://www.latex-project.org/lppl.txt
----------------------------------------------------------------

In its communications, Leiden University aims to create a clear 
and recognisable brand, which is why it is important that our house 
style is applied consistently. The current packages allows for 
letter that comply with the standard set out at 
https://huisstijl.leidenuniv.nl/nl/corporate/briefpapier-zetaanwijzingen/
%&lt;/readme&gt;
%&lt;*internal&gt;
\fi
\def\nameofplainTeX{plain}
\ifx\fmtname\nameofplainTeX\else
  \expandafter\begingroup
\fi
%&lt;/internal&gt;
%&lt;*install&gt;
\input docstrip.tex
\keepsilent
\askforoverwritefalse
\preamble
----------------------------------------------------------------
LEIletter --- letter class for Leiden University
E-mail: m.t.kreutzer@science.leidenuniv.nl
Released under the LaTeX Project Public License v1.3c or later
See http://www.latex-project.org/lppl.txt
----------------------------------------------------------------

\endpreamble
\postamble

Copyright (C) 2009 by Michiel Kreutzer &lt;m.t.kreutzer@science.leidenuniv.nl&gt;

This work may be distributed and/or modified under the
conditions of the LaTeX Project Public License (LPPL), either
version 1.3c of this license or (at your option) any later
version.  The latest version of this license is in the file:

http://www.latex-project.org/lppl.txt

The Leiden University logo is licensed under the Creative Commons 
Attribution-Share Alike 3.0 Unported license, as explained at 

	https://commons.wikimedia.org/wiki/File:UniversiteitLeidenLogo.svg
	


This work is "maintained" (as per LPPL maintenance status) by
Michiel Kreutzer.

This work consists of the file  LEIletter.dtx and
                                leiden-logo.pdf
and the derived files           LEIletter.ins,
                                LEIletter.pdf,
                                LEIletter.cls,
                                leiletter-voorbeeld.tex and  
                                medewerker.lco

\endpostamble
\usedir{tex/latex/leiletter}
\generate{
  \file{\jobname.cls}{\from{\jobname.dtx}{class}}
}
%&lt;/install&gt;
%&lt;install&gt;\endbatchfile
%&lt;*internal&gt;
\usedir{source/latex/LEIletter}
\generate{
  \file{\jobname.ins}{\from{\jobname.dtx}{install}}
  \file{medewerker.lco}{\from{\jobname.dtx}{medewerker}}
  \file{leiletter-voorbeeld.tex}{\from{\jobname.dtx}{example}}
  \file{leiletter-gridtest.tex}{\from{\jobname.dtx}{gridtest}}
}
\nopreamble\nopostamble
\usedir{doc/latex/LEIletter}
\generate{
  \file{README.txt}{\from{\jobname.dtx}{readme}}
}
\ifx\fmtname\nameofplainTeX
  \expandafter\endbatchfile
\else
  \expandafter\endgroup
\fi
%&lt;/internal&gt;
% \def\fileversion{1.3}
% \def\filedate{2020/02/9}
%&lt;*class&gt;
\def\fileversion{1.3}
\def\filedate{2020/02/9}
%
\NeedsTeXFormat{LaTeX2e}
\ProvidesClass{LEIletter}[\filedate\space\fileversion\space  Michiel Kreutzer's letter class based on UL huisstijl in  https://huisstijl.leidenuniv.nl/nl/corporate/briefpapier-zetaanwijzingen/]
%&lt;/class&gt;
%&lt;*driver&gt;
\documentclass{ltxdoc}
\usepackage[T1]{fontenc}
\usepackage{lmodern}
\usepackage[numbered]{hypdoc}
\newenvironment{decl}[1][]%
    {\par\small\addvspace{4.5ex plus 1ex}%
     \vskip -\parskip
     \ifx\relax#1\relax
        \def\@decl@date{}%
     \else
        \def\@decl@date{\NEWfeature{#1}}%
     \fi
     \noindent\hspace{-\leftmargini}%
     \begin{tabular}{|l|}\hline\ignorespaces}%
    {\\\hline\end{tabular}\nobreak\@decl@date\par\nobreak
     \vspace{2.3ex}\vskip -\parskip}
\EnableCrossrefs
\CodelineIndex
\RecordChanges
\begin{document}
  \DocInput{\jobname.dtx}
\end{document}
%&lt;/driver&gt;
% \fi
%
%
%\title{^^A
%  \textsf{LEIletter} --- letter class for Leiden University\thanks{^^A
%    This file describes version \fileversion, last revised \filedate.^^A
%  }^^A
%}
%\author{^^A
%  Michiel Kreutzer\thanks{E-mail: m.t.kreutzer@science.leidenuniv.nl}^^A
%}
%\date{Released \filedate}
%
%\maketitle
%
% \begin{abstract}
% This package is a \LaTeX\  implementation of the business letter formatting
% that is used at Leiden University, using the institute graphic identity as
% specified on |www.leidenuniv.nl|.
% \end{abstract}
%
%\changes{v1.0}{2019/10/26}{First public release}
%
% \section{Introduction}
%
% This package implements the graphic identity of Universiteit Leiden for letters.
% Using these class files will make it easy for you to make and keep
% your letters compliant to this version and future
% versions of the graphic identity (``huisstijl'') of the university.
%
% If you think (1) that there is an error in compliancy with the house
% style, (2) that there is a feature missing in this class file, or
% (3) that there's a bug in this class file, 
% please, contact me through e-mail (|m.t.kreutzer@science.leidenuniv.nl|)
% about the issue.
% I'll provide you with an answer and if (and as soon as) possible
% with a solution to the problem you spotted.  
%
% \section{Synopsis}
% The |LEIletter| class is an extension of the standard KOMA-script letter
% class |scrlttr2|. It is intended to be used for writing business
% letters. It is compliant to the house style and allows for using
% windowed envelopes of the DL format, with right-aligned window. 
%
% The class requires and uses the following packages that are part of most 
% modern \LaTeX{} distributions: 
% \begin{itemize}
% \item the |graphicx| package to include the university logo.
% \item the |ifthen| package to process user options
% \item the |array| package to typeset a table on the front page
% \item the |babel| package to offer optional support for english
% \item the |regged2e| package for better left-justified text
% \item the |hyperref| package for formatting of hyperreferences
% \item the |textcase| package for better small capitals
% \item the |microtype| package for improved microtypography
% \item the |scrlayer-scrpage| package (part of KOMA-script)
% \item the |geometry| package for setting page margins
% \item the |setspace| package for setting interline distance
% \item the |lipsum| package for typesetting an example letter
% \end{itemize}
% and most importantly,
% \begin{itemize}
%   \item the |MinionPro| package and the Minion Pro fonts.
% \end{itemize}
% So make sure these packages are available to your
% \LaTeX{} compiler. The Minion fonts are commercial but easily 
% available: I was able to download the full set from 
%
% |https://www.wfonts.com/font/minion-pro|.  
% 
% Get a copy of the full font, preferably, and work 
% through the installation instruction in the |MinionPro| ReadMe file
% on CTAN.
% 
% \section{Minimal Example}
% 
%
% \begin{verbatim}
% \documentclass[author=medewerker,faculty=fwn]{leiletter}
% \leilnumber{MEdW/123}
% \leilyourref{12 april 2019}
% \leilsubject{Brieven Schrijven in Huisstijl met Latex.}
% \usepackage{lipsum}
% \begin{document}
% \begin{letter}{%
%     College van Bestuur\newline%
%     Universiteit van Leiden\newline%
%     Rapenburg 70, Leiden
% }
% \opening{Geacht College,}
% \lipsum[1-10]
% \closing{Hoogachtend,}
% \end{letter}
% \end{document}
% \end{verbatim}
% 
% \section{Usage}
% \begin{decl}
% \cs{documentclass}\oarg{options}|{LEIletter}|
% \end{decl}
% 
% \subsection{Language}
%
% \DescribeMacro{lang=&lt;language&gt;, dutch, english}
% The default language of the letters is Dutch, and without user input Dutch 
% will be selected. By providing option |lang=english| or simply by providing 
% the option |english|, the language will switch to english. Although not required, 
% the user can specify |dutch| or |lang=dutch| as an option. By switching to 
% English, all class-generated output will be in English and the document language
% switches to English, relevant for hyphenation and other language-specific 
% typesetting aspects. 
% 
% \subsection{Faculty}
%
% \DescribeMacro{faculty=&lt;faculty&gt;}
% The house style indicates that the name of the faculty is printed at the top
% right of the page, and below it the visiting address and postal address of the 
% faculty is given. These addresses were taken from the university website for 
% each of the faculties, and by specifying the faculty, the correct name and 
% address will be printed automatically. Note that it is still up to the user 
% to specify the name of the building. If needed, the visiting address and other 
% address details can be overwritten. 
%
% The following faculties are supported: |fwn| for Faculty of Science, |law| for 
% Faculty of Law, |med| for Faculty of Medicine, |fgw| for Faculty of Humanities, 
% |fsw| for Faculty of Social and Behavioural Sciences, |arch| for Faculty of 
% Archeology, |gga| for Faculty of Governance and Global Affairs. 
%
% If no value is specified, the letter defaults to |faculty=fwn|. 
%
% \subsection{Stationary with pre-printed logo}
%
% \DescribeMacro{briefdrager}
% By default, the class assumes that the letter will be printed on plain paper
% or by email. In that case, the logo of the university is included in the top
% left part of the paper. If stationary paper with pre-printed logo, called 
% `briefdrager' in the specification of the house style, is used, then the logo
% should not be printed. By specifying the option |briefdrager|, the logo is 
% suppressed. 
%
% \subsection{Letterhead information}
%
% \begin{decl}
% \cs{leilnumber}\marg{letter number} \\
% \cs{leilyourref}\marg{correspondence reference} \\
% \cs{leilsubject}\marg{letter subject}
% \end{decl}
%
% At the top of the letter, in the preamble before |\begin{document}|, these there
% items should be specified for inclusion in the reference line, along with the 
% date and other sender information. Note that the headings for the reference line
% can also be changed by the user -- see the code documentation for details. 
%
% \subsection{Loading of sender information}
%
% \DescribeMacro{author=&lt;name&gt;}
% The class offers the option to load a file that contains sender-information. 
% This file could be stored in a location that \LaTeX is able to find, such that 
% the same information need not be specified anew for each letter. See the example
% file |medewerker.lco| and the code documentation to set up such a file. To load 
% the file, the option |author=&lt;name&gt;| specifies that the file |&lt;name&gt;.lco| is
% loaded. 
%
% \begin{decl}
% \cs{leiltitle}\marg{academic titles} \\
% \cs{leilfirstname}\marg{sender first name} \\
% \cs{leillastname}\marg{sender last name} \\
% \cs{leilemail}\marg{sender email} \\
% \cs{leildirectphone}\marg{sender direct-call phone number} \\
% \cs{leilcontact}\marg{sender representative} \\
% \cs{leiljobtitle}\marg{sender job title} \\
% \cs{leilbuilding}\marg{sender office building} \\
% \cs{leilunit}\marg{sender organisational unit}
% \end{decl}
%
% These items can be specified for inclusion in the letterhead. Note that the 
% information for the letterhead line can also be set by the user by including 
% the relevant commands in the preamble. 
%
% \subsection{Structure of a letter}
%
% \begin{decl}
% \cs{begin}|{letter}|\marg{address}\ldots\cs{end}|{letter}| \\
% \cs{opening}\marg{salutation} \\
% \cs{closing}\marg{salutation} \\
% \cs{setkomavar}|{signature}|\marg{sender name and signature}
% \end{decl}
%
% The structure of the letter is an environment |letter|, where the opening
% statement includes the addresss of the recipient of the letter, on multiple
% lines separated by |\newline|. Opening and closing salutations have their own
% commands that take care of space before and after. All of this is taken from 
% the KOMAscript letter class that forms the basis of this class. This also holds
% for the signature. If the right user information is provided, then the signature
% defaults to title, first and last name of sender, and the job title on the line
% below. 
%
% If you want to change this, you can use cs{setkomavar}, for instance to
% include a scanned signature as follows 
% \begin{verbatim}
% \newcommand{\mSignature}{
%	\makebox[0pt][l]{\raisebox{-2cm}[0pt][2cm]%
%      {\hspace{-1.5cm}\includegraphics{krabbel.pdf}}}
% }
% ...
% \closing{\mSignature \unskip Best regards}
%\end{verbatim}	
% 
% for a scanned signature that is about 2 cm high.
%
%
%\StopEventually{^^A
%  \PrintChanges
%  \PrintIndex
%}
%
%
% \section{documentclass-code}
%
% \subsection{option handling}
%
% We begin by setting up the processing of options using the |kvoptions| package,
% using |leil| as family name for all options and |leil@| as prefix for all tags. 
% The string option |lang| defaults to Dutch, |paper| defaults to A4, and |faculty|
% defaults to the Faculty of Science. the |\setkeys| command sets Dutch on A4 paper
% as default options. 
%
%    \begin{macrocode}
%&lt;*class&gt;
%    \end{macrocode}
%    \begin{macrocode}
\RequirePackage{ifthen}
\RequirePackage{kvoptions}
\SetupKeyvalOptions{family=leil, prefix=leil@}
\DeclareBoolOption{dutch}
\DeclareBoolOption{english}
\DeclareBoolOption{briefdrager}
\DeclareStringOption[dutch]{lang} 
\DeclareStringOption[fwn]{faculty} 
\DeclareStringOption{author} 
\setkeys{leil}{dutch}
\ProcessKeyvalOptions{leil}
%    \end{macrocode}
%
%  Set the |leil@lang| variable to english if the option |english| is given.  
%    \begin{macrocode}
\ifthenelse{\boolean{leil@english}}{\renewcommand*{\leil@lang}{english}}{}
%    \end{macrocode}
%
%  The user-specified options go through some rudimentary error checking. The 
%  language option is processed such that specifying options other than Dutch or 
%  English defaults to Dutch. The faculty option is switched back to |fwn| if 
%  an unknown value is specified. 
% 
%    \begin{macrocode}
\ifthenelse{\equal{\leil@lang}{dutch}\OR\equal{\leil@lang}{english}}{\relax}%
    {\PackageWarningNoLine{leiletter}{Only languages supported are Dutch and English. 
     Defaulting to Dutch now, you specified \leil@lang}}	
\ifthenelse{\equal{\leil@faculty}{fwn}\OR\equal{\leil@faculty}{fgw}\OR
            \equal{\leil@faculty}{fsw}\OR\equal{\leil@faculty}{gga}\OR
            \equal{\leil@faculty}{med}\OR\equal{\leil@faculty}{law}\OR
            \equal{\leil@faculty}{arch}}{\relax}%
    {\PackageWarningNoLine{leiletter}{You specified illegal input for the faculty. 
     Switching back to fwn, you specified \leil@faculty}
     \renewcommand*{\leil@faculty}{fwn}}	
%    \end{macrocode}
%
%  This concludes the specification of package options. 
%
% \subsection{Parent Class and Packages}
%
% The |LEIletter| class builds upon the KOMA-script letter class |scrlttr2|, 
% that is loaded here. The |scrlayer-scrpage| package is also part of KOMA-script
% and allows for placement layers of blocks of material (text, images) on pages. 
% These layers offer more flexibility than the |scrlttr2| package and allow for 
% much cleaner programming. 
% 
%    \begin{macrocode}
\LoadClass{scrlttr2}
\KOMAoptions{
  fontsize=11pt,
  paper=a4,
  usegeometry=true,
  parskip=full,
  pagenumber=false,
  enlargefirstpage=on,    % More space on first page
  fromrule=off,           % No Rule after sender name in letter head
  addrfield=topaligned,   % Adress field for envelope with window
  backaddress=off,         % Sender address in this window (use plain to remove rule)
  refline=nodate,
  foldmarks=on,           % Print foldmarks
}
\RequirePackage{scrlayer-scrpage}
\pagestyle{scrheadings}
%    \end{macrocode}
%
%  The |array| package is required to typeset the reference line (letter number, date, etc)
%  in a tabular environment (well, mostly to tweak the spacing between rows). Babel is 
%  loaded here (it is also loaded by scrlttr2) with the correct language switch. Hyperref 
%  is included for typesetting of links without too much color. Note that this can be 
%  overwritten by the user with an alternative |\hypersetup| command in the preamble. 
% 
% \changes{v1.2}{2019/11/7}{Added code from parskip.sty to remove parskip around headings
% 							requires etoolbox.sty}
%    \begin{macrocode}
\RequirePackage{array}
\RequirePackage{etoolbox}
\RequirePackage[\leil@lang]{babel}
\RequirePackage{hyperref}
\hypersetup{colorlinks, breaklinks, urlcolor=black, linkcolor=black}
%    \end{macrocode}
%
%  Letters are written left-justified. The package |ragged2e| handles this best. 
% 
%    \begin{macrocode}
\RequirePackage{ragged2e}
\RaggedRight
%    \end{macrocode}
%
%  \begin{macro}{\spacedallcaps}
%  The standard font for Leiden university is Minion. We use the |MinionPro| package 
%  and assume that the full family is installed. The switch |opticals| specifies that
%  slightly different shapes are used at different sizes. The |microtype| package does 
%  small but noticable improvement to the typesetting of text. The |textcase| package 
%  is needed for the specification of the two commands |\spacedallcaps| and 
%  |\spacedlowsmallcaps|, both copied from the |classicthesis| package, that allow for 
%  nicely spaced small caps. 
% 
%    \begin{macrocode}
\RequirePackage{textcase}
\RequirePackage{microtype}
\RequirePackage[fullfamily,opticals]{MinionPro}
\DeclareRobustCommand{\spacedallcaps}[1]{\textssc{\MakeTextUppercase{#1}}}
\DeclareRobustCommand{\spacedlowsmallcaps}[1]{\textssc{\MakeTextLowercase{#1}}}
%    \end{macrocode}
% \end{macro}
%
% The geometry of the page (i.e. the margins) are prescribed in the house style: 
% left margin is 24 mm, bottom margin is 44pt, no footer. The top margin specified
% here is for the pages after the first page - on the first page  the start of the 
% body text is dictated by the location of the reference line. 
%
%    \begin{macrocode}
\RequirePackage[left=4.8cm,right=2.2cm,top=142pt,bottom=44pt,foot=2em]{geometry}
%    \end{macrocode}
% 
%  Document layout: Here we set the location of the address window using 
% |toaddrhpos|, |toaddrvpos| and |toaddrwidth|, kill spacing for back-address 
% (which we do not use), and space for the reference line (that we construct
% differently). We need to set |refvpos| to make sure the text starts at the 
% correct height on the first page. 
%
% (NB: we use here the older |\@setplength| with the at-sign for compatiblity with
% older versions of KOMA-script.) Perhaps, at some point make this something like 
% \begin{verbatim}
%    \ifpackagelater{scrlttr2}{2019/2/1}{
%           \newcommand*{\setplength}{\@setplength}
%    }{}
% \end{verbatim}
%
%    \begin{macrocode}
\@setplength{toaddrhpos}{24mm}
\@setplength{toaddrvpos}{146pt}
\@setplength{toaddrwidth}{72mm}
\@setplength{toaddrheight}{77pt}
\@setplength{backaddrheight}{0pt}
\@setplength{subjectaftervskip}{0pt}
\@setplength{subjectbeforevskip}{0pt}
\@setplength{refaftervskip}{0pt}
\@setplength{sigbeforevskip}{3.0\baselineskip}
\@setplength{refvpos}{350pt}
\setlength\parindent{0pt}
%    \end{macrocode}
%
% 
%  Formatting of the signature left justified, and use a colon for the enclosed
%  documents. 
%
%    \begin{macrocode}
\renewcommand*{\raggedsignature}{\raggedright}
\setkomavar{enclseparator}{: }
%    \end{macrocode}
%
%
%  Line spacing: making text register onto a grid is a nightmare in \LaTeX. The following
%  is mostly taken from the |grid| package. which is to incompatible with KOMA-script
%  to just use as is. We begin with some preliminaries, defining the grid to be 14 points
%  and setting the default font size to 11 pt. 
% 
%    \begin{macrocode}
\def\leil@fontsize{11pt}
\def\leil@baseline{14pt}
%    \end{macrocode}
%
%  Next, we redefine the font sizes |normalsize| and |small| to have 14 pt leading and
%  we set all the ``rubber'' lengths of latex to fixed multiples of 14 pt. We also set
% |\parskip| to a full but single line. 
% 
%    \begin{macrocode}
\renewcommand\normalsize{%
   \baselineskip=\leil@baseline%
   \@setfontsize\normalsize{\leil@fontsize}{\leil@baseline}%
   \lineskip=0pt
   \lineskiplimit=-\leil@fontsize%
   \abovedisplayskip \baselineskip%
   \abovedisplayshortskip .5\baselineskip%
   \belowdisplayskip \abovedisplayskip
   \belowdisplayshortskip \abovedisplayshortskip
   \let\@listi\@listI}
\renewcommand\small{%
   \baselineskip=\leil@baseline%
   \@setfontsize\normalsize{10pt}{\leil@baseline}%
   \lineskip=0pt
   \lineskiplimit=-\leil@fontsize%
   \abovedisplayskip \baselineskip%
   \abovedisplayshortskip .5\baselineskip%
   \belowdisplayskip \abovedisplayskip
   \belowdisplayshortskip \abovedisplayshortskip
   \let\@listi\@listI}
\normalsize
\parskip \leil@baseline
%    \end{macrocode}
%
%  Still working on sticking to the grid: the following code creates an enviroment
%  |gridenv|, such that anything between |\begin{gridenv}| and |\end{gridenv}| takes
%  up an integer multiple of |\baseline|, such that the text below registers again. 
%  For details, consult the |grid| package on CTAN. 
% 
%    \begin{macrocode}
\newdimen\floatunit
\newskip\allfloats
\setlength\floatunit{\the\baselineskip}
\begingroup
  \catcode`P=12
  \catcode`T=12
  \lowercase{
    \def\x{\def\rem@decimal##1.##2PT{##1}}}
  \expandafter\endgroup\x
\def\strip@decimal{\expandafter\rem@decimal\the}
\begingroup
  \catcode`P=12
  \catcode`T=12
  \lowercase{
    \def\y{\def\rem@dot##1.##2PT{##1##2}}}
  \expandafter\endgroup\y
\def\strip@dot{\expandafter\rem@dot\the}
\newdimen\halfbaselineskip
\halfbaselineskip=\floatunit
\divide\halfbaselineskip by 2
\newdimen\figboxht
\newdimen\figboxdp
\long\def\roundoff{\figboxht=\fight%
    \advance\figboxht by \baselineskip%
    \multiply\figboxht by 10%
    \xdef\xbaselineskip{\strip@dot\baselineskip}%
    \divide\figboxht by \xbaselineskip%
    \xdef\mylines{\strip@decimal\figboxht}%
    \figboxht=\baselineskip%
    \multiply\figboxht by\mylines%
    \advance\figboxht by -\fight%
    \ifdim\the\figboxht&gt;\the\halfbaselineskip%
      \advance\figboxht by -\floatunit%
    \else\fi%
    }
\long\def\fltroundoff{\figboxht=\fight%
	\figboxdp=\figdp%
	\addtolength{\figboxht}{\figdp}%
	\addtolength{\figboxdp}{\fight}%
	\typeout{figboxht is now (dp added) \the\figboxht}%
    \advance\figboxht by \baselineskip%
    \multiply\figboxht by 10%
    \xdef\xbaselineskip{\strip@dot\baselineskip}%
    \divide\figboxht by \xbaselineskip%
    \xdef\mylines{\strip@decimal\figboxht}%
    \figboxht=\baselineskip%
    \multiply\figboxht by\mylines%
    \advance\figboxht by -\figboxdp%
    \ifdim\the\figboxht&gt;\the\halfbaselineskip%
      \advance\figboxht by -\floatunit%
    \else\fi%
    }
\newenvironment{gridfltenv}
         {\global\setbox0=\vbox\bgroup}
         {\egroup%
          \xdef\fight{\the\ht0}%
		  \xdef\figdp{\the\dp0}%
		      \typeout{figboxht starts at \fight, \figdp  is depth}
          \fltroundoff%
          \leavevmode\vadjust{\box0\vskip\figboxht}\hfil\break%
         }
\newenvironment{gridenv}
         {\global\setbox0=\vbox\bgroup}
         {\egroup%
          \xdef\fight{\the\ht0}%
          \roundoff%
          \leavevmode%
          \vadjust{\vskip0.5\figboxht%
                   \box0%
                   \vskip0.5\figboxht%
                   }\hfil\break%%
         }
\jot=\baselineskip
%    \end{macrocode}
%
% We also redefine the enumerate and itemize environments to 
% make sure that the spacing between lists is correct. 
% 
%    \begin{macrocode}
  \def\enumerate{%
    \ifnum \@enumdepth &gt;\thr@@\@toodeep\else
      \advance\@enumdepth\@ne
      \edef\@enumctr{enum\romannumeral\the\@enumdepth}%
        \expandafter
        \list
          \csname label\@enumctr\endcsname
          {\usecounter\@enumctr\def\makelabel##1{\hss\llap{##1}}%
           \topsep\z@\partopsep\z@\parskip\z@\itemsep\z@%
           \@outerparskip\z@\parsep\z@\@topsep\z@\@topsepadd\z@}%
    \fi}
  \def\itemize{%
    \ifnum \@itemdepth &gt;\thr@@\@toodeep\else
      \advance\@itemdepth\@ne
      \edef\@itemitem{labelitem\romannumeral\the\@itemdepth}%
      \expandafter
      \list
        \csname\@itemitem\endcsname
        {\def\makelabel##1{\hss\llap{##1}}%
         \topsep\z@\partopsep\z@\parskip\z@\itemsep\z@%
         \@outerparskip\z@\parsep\z@\@topsep\z@\@topsepadd\z@}%
    \fi}
%    \end{macrocode}
%
%  \subsection{Section Commands} 
%
%  The parent class |sxcrlttr2| does not have 
%  section commands (the same holds for the standard \LaTeX\ |letter| class). 
%  It may be needed in longer letters to have section
%  and subsection commands. The code here does not allow for table of 
%  contents to be constructed, but the spacing before and after the commands
%  is sticking to the 14 pt grid. The code is lifted from |sections.lco|
%  that is distributed by the authors of KOMA-script and adjusted using the 
%  code from |grid.sty|. 
%
% 
%    \begin{macrocode}
\newcounter{section}
\newcounter{subsection}[section]
\newcounter{subsubsection}[subsection]
\renewcommand*{\thesection}{\Alph{section}.}
\renewcommand*{\thesubsection}{\Roman{subsection}.}
\renewcommand*{\thesubsubsection}{\arabic{subsubsection}.}
\renewcommand*{\p@subsection}{\thesection}
\renewcommand*{\p@subsubsection}{\p@subsection\thesubsection}
\let\size@section\normalsize
\newcommand*{\scr@fnt@section}{\size@section}
\newcommand*{\scr@fnt@subsection}{\size@section}
\newcommand*{\scr@fnt@subsubsection}{\size@section}
\newcommand*\sectfont{\normalcolor\bfseries}
\newcommand*{\scr@fnt@disposition}{\sectfont}
\aliaskomafont{sectioning}{disposition}
\setcounter{secnumdepth}{4}
\newcommand\section{\@startsection{section}{1}{\z@}%
  {-0.999\baselineskip}%
  {0.001\baselineskip}%
  {\raggedsection\normalfont\usekomafont{disposition}\nobreak
    \usekomafont{section}\nobreak}}
\newcommand\subsection{\@startsection{subsection}{2}{\z@}%
  {\baselineskip}%
  {-0.35\baselineskip}%
  {\bfseries\unskip}}
\newcommand\subsubsection{\@startsection{subsubsection}{3}{\z@}%
  {\baselineskip}%
  {-.35\baselineskip}%
  {\itshape\unskip}}
\let\raggedsection\raggedright
%
%
% \changes{v1.2}{2019/11/7}{Added code from parskip.sty to remove parskip around headings
% 							requires etoolbox.sty}
%
\patchcmd\@startsection
    {\addvspace\@tempskipa}
    {\advance\@tempskipa-\parskip\addvspace\@tempskipa}
    {}{\typeout{Couldn't patch \string\@startsection}}
\patchcmd\@xsect
    {\vskip\@tempskipa}
    {\advance\@tempskipa-\parskip\vskip\@tempskipa}
    {}{\typeout{Couldn't patch \string\@xsect}}
%    \end{macrocode}
%
% 
%    \begin{macrocode}
%    \end{macrocode}
%
% 
%    \begin{macrocode}
%    \end{macrocode}
%
% 
%    \begin{macrocode}
%    \end{macrocode}
%
% \subsection{Faculty addresses}
%
% The faculty specified by the user is now used to set the sender address. we start by
% initializing tags 
%
% \begin{macro}{\leil@poboxname}  
%  The tag |\leil@poboxname| holds the word P.O.Box or the Dutch variant Postbus. 
%    \begin{macrocode}
\newcommand{\leil@facultypoboxname}{Postbus}
\ifthenelse{\equal{\leil@lang}{english}}{\renewcommand{\leil@facultypoboxname}{P.O.~Box}}{}
%    \end{macrocode}
% \end{macro}
%
%
% \begin{macro}{\leil@facultyname}  
% The name of the faculty, initialize empty tag.
%    \begin{macrocode}
\newcommand{\leil@facultyname}{}
%    \end{macrocode}
% \end{macro}
% 
%
% \begin{macro}{\leil@facultypobox}  
% The P.O. Box of the faculty, initialize empty tag. 
%    \begin{macrocode}
\newcommand{\leil@facultypobox}{}
%    \end{macrocode}
% \end{macro}
% 
%
% \begin{macro}{\leil@facultyaddress}  
% The address of the faculty, initialize empty tag.
%    \begin{macrocode}
\newcommand{\leil@facultyaddress}{}
%    \end{macrocode}
% \end{macro}
% 
%
% \begin{macro}{\leil@facultyphone}  
% The phone number of the faculty, initialize empty tag.
%    \begin{macrocode}
\newcommand{\leil@facultyphone}{}
%    \end{macrocode}
% \end{macro}
%
% With the tags initialized, we process the value of |\leil@faculty| to 
% fill in the proper sender address, PO Box and phone number.  
% 
%    \begin{macrocode}
\ifthenelse{\equal{\leil@faculty}{fwn}}{
	\ifthenelse{\equal{\leil@lang}{english}}{
		\renewcommand{\leil@facultyname}{Faculty of Science}}{
		\renewcommand{\leil@facultyname}{Faculteit der Wiskunde en Natuurwetenschappen}}
		\renewcommand{\leil@facultypobox}{\leil@facultypoboxname~9502\\\textsc{2300~ra}~Leiden}
		\renewcommand{\leil@facultyphone}{(071)\,527\,4400}
		\renewcommand{\leil@facultyaddress}{Einsteinweg~55}
		}{}
\ifthenelse{\equal{\leil@faculty}{law}}{
	\ifthenelse{\equal{\leil@lang}{english}}{
		\renewcommand{\leil@facultyname}{Faculty of Law}}{
		\renewcommand{\leil@facultyname}{Faculteit der Rechtsgeleerdheid}}
		\renewcommand{\leil@facultypobox}{\leil@facultypoboxname~9520\\\textsc{2300~ra}~Leiden}
		\renewcommand{\leil@facultyphone}{(071)\,527\,7512}
		\renewcommand{\leil@facultyaddress}{Steenschuur~25}
		}{}
\ifthenelse{\equal{\leil@faculty}{arch}}{
	\ifthenelse{\equal{\leil@lang}{english}}{
		\renewcommand{\leil@facultyname}{Faculty of Archeology}}{
		\renewcommand{\leil@facultyname}{Faculteit der Archeologie}}
		\renewcommand{\leil@facultypobox}{\leil@facultypoboxname~9514\\\textsc{2300~ra}~Leiden}
		\renewcommand{\leil@facultyphone}{(071)\,527\,3500}
		\renewcommand{\leil@facultyaddress}{Einsteinweg~55}
		}{}
\ifthenelse{\equal{\leil@faculty}{fgw}}{
	\ifthenelse{\equal{\leil@lang}{english}}{
		\renewcommand{\leil@facultyname}{Faculty of Humanities}}{
		\renewcommand{\leil@facultyname}{Faculteit der Geesteswetenschappen}}
		\renewcommand{\leil@facultypobox}{\leil@facultypoboxname~9514\\\textsc{2300~ra}~Leiden}
		\renewcommand{\leil@facultyphone}{(071)\,527\,2300}
		\renewcommand{\leil@facultyaddress}{Cleveringaplaats~1}		
		}{}
\ifthenelse{\equal{\leil@faculty}{fsw}}{
	\ifthenelse{\equal{\leil@lang}{english}}{
		\renewcommand{\leil@facultyname}{Faculty of Social and Behavioural Sciences}}{
		\renewcommand{\leil@facultyname}{Faculteit der Sociale Wetenschappen}}
		\renewcommand{\leil@facultypobox}{\leil@facultypoboxname~9555\\\textsc{2300~rb}~Leiden}
		\renewcommand{\leil@facultyphone}{(071)\,527\,3600}
		\renewcommand{\leil@facultyaddress}{Wassenaarseweg~52}
		}{}
\ifthenelse{\equal{\leil@faculty}{med}}{
	\ifthenelse{\equal{\leil@lang}{english}}{
		\renewcommand{\leil@facultyname}{Faculty of Medicine}}{
		\renewcommand{\leil@facultyname}{Faculteit der Geneeskunde}}
		\renewcommand{\leil@facultypobox}{\leil@facultypoboxname~9600\\\textsc{2300~rc}~Leiden}
		\renewcommand{\leil@facultyphone}{(071)\,526\,9111}
		\renewcommand{\leil@facultyaddress}{Einthovenweg~20}
		}{}
\ifthenelse{\equal{\leil@faculty}{gga}}{
	\ifthenelse{\equal{\leil@lang}{english}}{
		\renewcommand{\leil@facultyname}{Faculty of Governance and Global Affairs}}{
		\renewcommand{\leil@facultyname}{Faculteit Governance and Global Affairs}}
		\renewcommand{\leil@facultypobox}{\leil@facultypoboxname~13228\\\textsc{2501~ee}~Den~Haag}
		\renewcommand{\leil@facultyphone}{(070)\,800\,9500}
		\renewcommand{\leil@facultyaddress}{Turfmarkt~99}
		}{}
%    \end{macrocode}
%
% \subsection{University logo}
% 
%  The house style stipulates location of the logo (35pt from the top edge of the
%  paper, 24 mm from the left edge of the paper). Size is not precisely prescribed. 
%  The logo as available on the house style website has wide boundaries, so a little
%  readjustment of the location is needed using |addvoffset| and |addhoffset|. 
%  Size is not precisely prescribed, so we put the logo at the upper-left part of the
%  layer. For documentation of the |\DeclareNewLayer| and |\AddLayerstoPageStyle| 
%  commands, consult the |scrlayer=scrpage| documentation. 
%
% (to do: tight boundaries around logo, better sizing)
%
% \changes{v1.1}{2019/11/3}{Cropped the logo image and removed addoffset}
%
%  We only put the logo if the |briefdrager| option is not active. 
%    \begin{macrocode}
\ifthenelse{\boolean{leil@briefdrager}}{\relax}{
	\RequirePackage{graphicx}
	\DeclareNewLayer[
  		background,
  	  	align=tl,
  	  	hoffset=24mm,
  	  	voffset=35pt,
  	  	addvoffset=22.35mm,% &lt;- height of leiden-logo.pdf
  	  	mode=picture,
  	  	contents=\putUL{\includegraphics{leiden-logo}}
	]{letterimage}
	\AddLayersToPageStyle{@everystyle@}{letterimage}
}
%    \end{macrocode}
%
% \subsection{Letterhead}
%
%  At the top right of the page, the name of the faculty appears together with
%  the name of the organisation unit of the sender. This appears on the first 
%  page (pagestyle empty) and on followup pages. The first line here kills the
%  letter head otherwise generate by the |scrlttr2| package. 
% 
%    \begin{macrocode}
\setkomavar{firsthead}{}
\DeclareNewLayer[
  background,
  height=56pt,
  width=48mm,
  voffset=74pt,
  hoffset=144mm,
  contents={%
	\begin{raggedright}
	\unskip\small\textbf{\leil@facultyname}\\
	\ifdefined\leil@unit \leil@unit{} \fi
	\end{raggedright}
  }
]{top.header}
\AddLayersToPageStyle{scrheadings}{top.header}
\AddLayersToPageStyle{empty}{top.header}
%    \end{macrocode}
%
%  \subsection{Page numbers}
%
% Page numbers only appear on the second and later pages, at the left 
% margin. Note that the standard "Pagina" label is replaced by "Blad". 
% 
%    \begin{macrocode}
\defcaptionname{dutch}\pagename{Blad}
\DeclareNewLayer[
  background,
  height=10mm,
  width=22mm,
  voffset=144pt,
  hoffset=24mm,
  contents={%
 	\pagename~\thepage/\letterlastpage
  }
]{margin.pagenumber}
\AddLayersToPageStyle{scrheadings}{margin.pagenumber}
%    \end{macrocode}
%
% 
%    \begin{macrocode}
%    \end{macrocode}
%
% \begin{macro}{foo}  
%    \begin{macrocode}
%    \end{macrocode}
% \end{macro}
% 
%
% 
%    \begin{macrocode}
%    \end{macrocode}
%
% \subsection{Letter Information}
%
% The user can/must set information about the letter in the preable of the 
% document. Here we define these command. 
%
% \begin{macro}{\leil@number}
%   This macro sets the |\leil@number| tag, that is to appear in the reference 
%   line as the number of the letter. It defaults to a long dash (--) 
%   and a warning if none is  specified by the user.   A user-level command is 
%   also provided for to set this tag.
%    \begin{macrocode}
\newcommand{\leil@number}{-- \ClassWarning{LEIletter}{Please, specify 
    the number of the letter using the \noexpand\leilnumber macro
	in the preamble of your letter.}}
\newcommand{\leilnumber}[1]{\renewcommand\leil@number{#1}}
%    \end{macrocode}
% \end{macro}
%
%
% \begin{macro}{\leil@yourref}
%   This macro sets the |\leil@yourref| tag, that is to appear in the reference 
%   line as date of the letter to respond to. It defaults to a long dash (--) 
%   and a warning if none is  specified by the user.   A user-level command is 
%   also provided for to set this tag.
%    \begin{macrocode}
\newcommand{\leil@yourref}{-- \ClassWarning{LEIletter}{Please, specify 
    the number of the letter using the \noexpand\leilyourref macro
	in the preamble of your letter.}}
\newcommand{\leilyourref}[1]{\renewcommand\leil@yourref{#1}}
%    \end{macrocode}
% \end{macro}
%
%
% \begin{macro}{\leil@subject}
%   This macro sets the |\leil@subject| tag, that is to appear in the reference 
%   line as subject of the letter. It defaults to a long dash (--) 
%   and a warning if none is  specified by the user.   A user-level command is 
%   also provided for to set this tag.
%    \begin{macrocode}
\newcommand{\leil@subject}{-- \ClassWarning{LEIletter}{Please, specify 
    the number of the letter using the \noexpand\leilsubject macro
	in the preamble of your letter.}}
\newcommand{\leilsubject}[1]{\renewcommand\leil@subject{#1}}
%    \end{macrocode}
% \end{macro}
%
%
% \subsection{Sender Information}
%
% First we set up the internal commands that can be specified by the user in 
% a seperate LetterClassOption (|.lco|) file. See also the example
% |medewerker.lco| file that is part of the distribution of this class. The 
% name of the file to be loaded is specified as an author option in the 
% \cs{documentclass} call, for instance 
%
% |\documentclass[author=medewerker]{LEIletter}| 
% 
% Note that it is also possible to overwrite the content specified in such a 
% file by the same user command in the preamble of the document. 
% 
% \begin{macro}{\leil@title}
%   This macro sets the |\leil@title| tag that will be used in the letter's
%   signature. It defaults to empty (sender need not have a title)
%   and a warning if none is specified by the user. A user-level command is 
%   also provided for to set this tag.
%    \begin{macrocode}
\newcommand{\leil@title}{\ClassWarning{LEIletter}{Please, specify the title 
	of the sender using the \noexpand\leiltitle macro in a separate .lco 
	file or in the preamble of your letter.}}
\newcommand{\leiltitle}[1]{\renewcommand\leil@title{#1}}
%    \end{macrocode}
% \end{macro}
%
%
% \begin{macro}{\leil@firstname}
%   This macro sets the |\leil@firstname| tag that will be used in the letter's
%   signature. It defaults to empty (sender need not specify a first name)
%   and a warning if none is specified by the user. A user-level command is 
%   also provided for to set this tag.
%    \begin{macrocode}
\newcommand{\leil@firstname}{\ClassWarning{LEIletter}{Please, specify the 
    first name of the sender using the \noexpand\leilfirstname macro in a 
	separate .lco file or in the preamble of your letter.}}
\newcommand{\leilfirstname}[1]{\renewcommand\leil@firstname{#1}}
%    \end{macrocode}
% \end{macro}
%
%
%
%
% \begin{macro}{\leil@lastname}
%   This macro sets the |\leil@firstname| tag that will be used in the letter's
%   signature. It defaults to empty and a warning if none is specified by the user. 
%   A user-level command is 
%   also provided for to set this tag.
%    \begin{macrocode}
\newcommand{\leil@lastname}{\ClassWarning{LEIletter}{Please, specify the last 
    name of the sender using the \noexpand\leillastname macro in a separate 
	.lco file or in the preamble of your letter.}}
\newcommand{\leillastname}[1]{\renewcommand\leil@lastname{#1}}
%    \end{macrocode}
% \end{macro}
%
%
% \begin{macro}{\leil@email}
%   This macro sets the |\leil@email| tag, that is currently not used. (This may
%   change in later versions) It defaults to empty and a warning if none is 
%   specified by the user.   A user-level command is 
%   also provided for to set this tag.
%    \begin{macrocode}
\newcommand{\leil@email}{\ClassWarning{LEIletter}{Please, specify the email 
    address of the sender using the \noexpand\leilemail macro in a separate 
	.lco file or in the preamble of your letter.}}
\newcommand{\leilemail}[1]{\renewcommand\leil@email{#1}}
%    \end{macrocode}
% \end{macro}
%
%
% \begin{macro}{\leil@directphone}
%   This macro sets the |\leil@directphone| tag, that is to appear in the reference 
%   letter (direct-dial number or Doorkiesnr. in Dutch)
%   It defaults to a long dash (--) and a warning if none is 
%   specified by the user.   A user-level command is 
%   also provided for to set this tag.
%    \begin{macrocode}
\newcommand{\leil@directphone}{-- \ClassWarning{LEIletter}{Please, specify 
    the direct dial phone number of the sender using the 
	\noexpand\leildirectphone macro in a separate .lco file or in the preamble 
	of your letter.}}
\newcommand{\leildirectphone}[1]{\renewcommand\leil@directphone{#1}}
%    \end{macrocode}
% \end{macro}
%
%
% \begin{macro}{\leil@contact}
%   This macro sets the |\leil@contact| tag, that is to appear in the reference 
%   letter as the name of the assistant of the sender or the name of the secretariat 
%   that belongs to the direct-dial phone number.  It defaults to a long dash (--) 
%   and a warning if none is  specified by the user.   A user-level command is 
%   also provided for to set this tag.
%    \begin{macrocode}
\newcommand{\leil@contact}{-- \ClassWarning{LEIletter}{Please, specify 
    the direct contact person for the sender using the \noexpand\leilcontact 
	macro in a separate .lco file or in the preamble of your letter.}}
\newcommand{\leilcontact}[1]{\renewcommand\leil@contact{#1}}
%    \end{macrocode}
% \end{macro}
%
%
% \begin{macro}{\leil@jobtitle}
%   This macro sets the |\leil@jobtitle| tag, that is to appear in the signature of the 
%   letter.  It defaults to empty and a warning if none is  specified by the user.  
%    A user-level command is 
%   also provided for to set this tag.
%    \begin{macrocode}
\newcommand{\leil@jobtitle}{-- \ClassWarning{LEIletter}{Please, specify the 
    job title of the sender using the \noexpand\leiljobtitle macro in a
    separate .lco file or in the preamble of your letter.}}
\newcommand{\leiljobtitle}[1]{\renewcommand\leil@jobtitle{#1}}
%    \end{macrocode}
% \end{macro}
%
%
% \begin{macro}{\leil@building}
%   This macro sets the |\leil@building| tag, that is to appear in the sender address
%    of the letter.  It defaults to empty and a warning if none is specified by the user.  
%    A user-level command is 
%   also provided for to set this tag.
%    \begin{macrocode}
\newcommand{\leil@building}{-- \ClassWarning{LEIletter}{Please, specify the 
    building of the sender using the \noexpand\leilbuilding macro in a
    separate .lco file or in the preamble of your letter.}}
\newcommand{\leilbuilding}[1]{\renewcommand\leil@building{#1}}
%    \end{macrocode}
% \end{macro}
%
%
% \begin{macro}{\leil@unit}
%   This macro sets the |\leil@unit| tag, that is to appear in the page header
%    of the letter.  It defaults to empty and a warning if none is specified by the user.  
%    A user-level command is 
%   also provided for to set this tag.
%    \begin{macrocode}
\newcommand{\leil@unit}{-- \ClassWarning{LEIletter}{Please, specify the 
    building of the sender using the \noexpand\leilunit macro in a
    separate .lco file or in the preamble of your letter.}}
\newcommand{\leilunit}[1]{\renewcommand\leil@unit{#1}}
%    \end{macrocode}
% \end{macro}
%
%
% We now proceed to process the file that specifies the tags, if any. 
%    \begin{macrocode}
\ifdefined\leil@author 
	\LoadLetterOption{\leil@author} 
	\setkomavar{signature}{\leil@title~\leil@firstname~\leil@lastname{}\\ \leil@jobtitle}	
\fi
%    \end{macrocode}
%
% \subsection{Sender address on first page}
%
% We put a layer with the sender information on the first page. Note that if the 
% building is not specified, it is left out. Location of the layer is set by the 
% house style (note that the vertical offset of 144 pt, not 140 pt, is neede to make 
% the text align with the grid. )
% 
%    \begin{macrocode}
\DeclareNewLayer[
  background,
  height=112pt,
  width=48mm,
  voffset=144pt,
  hoffset=144mm,
  contents={%
	\small
	\ifdefined\leil@building \leil@building \\ \fi
    \leil@facultyaddress \\
	\leil@facultypobox \\ 
	Telefoon~\leil@facultyphone{}\\
  }
]{firstpage.senderinfo}
\AddLayersToPageStyle{empty}{firstpage.senderinfo}
%    \end{macrocode}
%
% \subsection{Reference line}
% 
% For the reference line, we first define tags for the labels, bilingually. 
% Note that these can be changed by the user, therefor they do not have an 
% |@| sign in them. 
% 
%    \begin{macrocode}
\newcommand{\leilNumbername}{Nummer}
\newcommand{\leilYourrefname}{Uw brief van}
\newcommand{\leilSubjectname}{Onderwerp}
\newcommand{\leilDatename}{Datum}
\newcommand{\leilDialdirectname}{Doorkiesnr.}
\newcommand{\leilContactname}{Contactpersoon}
\ifthenelse{\equal{\leil@lang}{english}}{
	\renewcommand{\leilNumbername}{Number}
	\renewcommand{\leilYourrefname}{Your letter of}	
	\renewcommand{\leilSubjectname}{Subject}
	\renewcommand{\leilDatename}{Date}
	\renewcommand{\leilDialdirectname}{Dial-direct Nr.}	
	\renewcommand{\leilContactname}{Contact}	
}{}
%    \end{macrocode}
%
% We type out the reference line on the first page (note that |scrlttr2| sets the
% page-style for the first page to empty), using dimensions from the house style definition.
% On the left, there are three rows with the letter number, 
% 
%    \begin{macrocode}
\DeclareNewLayer[
  background,
  height=70pt,
  width=170mm,
  voffset=270pt,
  hoffset=24mm,
  contents={%
	\begingroup%\setlength\extrarowheight{-1pt}%
	\unskip\begin{tabular}{@{}&gt;{\small}p{24mm}@{}&gt;{\small}p{48mm}@{}p{24mm}@{}&gt;{\small}p{24mm}@{}&gt;{\small}p{48mm}}
	\textit{\leilNumbername} &amp; \leil@number  &amp; &amp; \textit{\leilDatename} &amp; \usekomavar{date} \\
	\textit{\leilYourrefname} &amp; \leil@yourref &amp; &amp; \textit{\leilDialdirectname} &amp; \leil@directphone \\
	\textit{\leilSubjectname} &amp; \leil@subject{} &amp; &amp; \textit{\leilContactname} &amp; \leil@contact \\
	\end{tabular}
	\endgroup
  }
]{firstpage.refline}
\AddLayersToPageStyle{empty}{firstpage.refline}
%    \end{macrocode}
%
%    \begin{macrocode}
%&lt;/class&gt;
%    \end{macrocode}
%    \begin{macrocode}
%&lt;*medewerker&gt;
%    \end{macrocode}
%
% \section{User Specific Information}
% Information that is used for every letter, typically the name and details
% of the sender of the letter, can be supplied in file |medewerker.lco|, which 
% is loaded using the option |author=medewerker| at the \cs{documentclass} line. 
% The following is a template for filling the file. Note that all these can also be 
% specified in the preable or overwritten using \cs{renewcommand} calls.
% \begin{macro}{\leiltitle}
% The title should be written without spaces between titles as per LEI style guide. 
% The titles, first name and last name are used to construct the signature under the letter.
%    \begin{macrocode} 
\leiltitle{prof.\,dr.} 
%    \end{macrocode}
% \end{macro}
% 
% 
% \begin{macro}{\leilfirstname}
% The fist name should be written with capitals and non-breaking space |~| between 
% name and initials. No spaces between the initials if there are more than one. 
%    \begin{macrocode} 
\leilfirstname{Maria~E.}
%    \end{macrocode}
% \end{macro}
%
%
% \begin{macro}{\leiltitle}
% The last name should be written without capitalization of de/van/der/etc. Use non-breaking
% spaces and/or non-breaking hyphens for multi-part names, as appropriate. 
%    \begin{macrocode} 
\leillastname{de~Werker} 
%    \end{macrocode}
% \end{macro}
%
%
% \begin{macro}{\leilemail}
% Specify the email address (currently not used but maybe in later versions.)
%    \begin{macrocode} 
\leilemail{m.e.dewerker@leidenuniv.nl} 
%    \end{macrocode}
% \end{macro}
%
%
% \begin{macro}{\leildirectphone}
% Specify the telephone number that is to appear in the reference letter (direct-dial number
% or Doorkiesnr. in Dutch). Use a full space between (071) and a half-space after the first 
% three digits, usually 527. Do not enter only the last four digits. 
%    \begin{macrocode} 
\leildirectphone{(071)~527\,0000} 
%    \end{macrocode}
% \end{macro}
%
%
% \begin{macro}{\leilcontact}
% Specify the name of the assistant of the sender or the name of the secretariat that 
% belongs to the direct-dial phone number. 
%    \begin{macrocode} 
\leilcontact{Secretariaat Belangrijk} 
%    \end{macrocode}
% \end{macro}
%
%
% \begin{macro}{\leiljobtitle}
% Specify, if so desired, the job title, which is typeset on a separate line below the 
% name in the signature. The jobtitle may be different in English and Dutch, so it may
% be wise to specify it bilingually. 
%    \begin{macrocode} 
\iflanguage{english}{
	\leiljobtitle{Professor of Relevant Subject}
}{
	\leiljobtitle{Professor in de Belangrijke Wetenschap}
}
%    \end{macrocode}
% \end{macro}
%
%
% \begin{macro}{\leilbuilding}
% Specify the location of the sender. This is not idential for all employees per 
% faculty, so it must be supplied to go above the contact details of the faculty. 
%    \begin{macrocode} 
\iflanguage{english}{
	\leilbuilding{Leyden Building}
}{
	\leilbuilding{Leids Gebouw}
}
%    \end{macrocode}
% \end{macro}
%
%
% \begin{macro}{\leilunit}
% Specify the institute or depart (sub-unit of the faculty) of the sender. This is 
% printed under name of the faculty at the top-right of every page. 
%    \begin{macrocode} 
\iflanguage{english}{
	\leilunit{Institute of Relevance}
}{
	\leilunit{Belangrijk Instituut}
}
%    \end{macrocode}
% \end{macro}
% 
% 
%    \begin{macrocode}
%&lt;/medewerker&gt;
%    \end{macrocode}
%    \begin{macrocode}
%&lt;*example&gt;
%    \end{macrocode}
%
% \section{Minimal Example}
% The following is a minimal example for a letter, using the |lipsum| package to 
% generate dummy text, that shows how to use premable commands per letter. 
%
% The first line contains the call to the |LEIletter| document class, and specifies
% options |dutch| (default) or |english|, specifies the author details to be loaded 
% from |medewerker.lco| and the faculty that the sender belongs to. 
%
%    \begin{macrocode} 
\documentclass[author=medewerker,faculty=fwn]{LEIletter}
%    \end{macrocode}
%
%
% \begin{macro}{\leilnumber}
%   This macro sets the |\leil@number| tag that  will be used to specify the
%   number or unique identifier of the letter (e.g. for archiving and referencing
%   purposes). 
%    \begin{macrocode} 
\leilnumber{MEdW/123} 
%    \end{macrocode}
% \end{macro}
%
%
% \begin{macro}{\leilyourref}
%   This macro sets the |\leil@yourref| tag that  will be used to specify the
%   date of the correspondence that the letter relates to. 
%    \begin{macrocode} 
\leilyourref{12 april 2019} 
%    \end{macrocode}
% \end{macro}
%
%
% \begin{macro}{\leilsubject}
%   This macro sets the |\leil@subject| tag that later will be used in the
%   reference line for the subject of the letter. 
%    \begin{macrocode} 
\leilsubject{Brieven Schrijven in Huisstijl met Latex.} 
%    \end{macrocode}
% \end{macro}
%
%
%    \begin{macrocode} 
\usepackage{pagegrid}
\pagegridsetup{top-left,step=14pt,arrows=false}
\usepackage{lipsum}
\begin{document}
%    \end{macrocode}
%
%
% \begin{environment}{letter}
%   This macro indicates the start of the letter and typesets the first page.
%   Its argument is the addressee of the letter, with \cs{newline} to jump to
%   a new line in the address.  
%    \begin{macrocode} 
\begin{letter}{%
	College van Bestuur\newline%
    Universiteit van Leiden\newline%
	Rapenburg 70, Leiden
}
%    \end{macrocode}
% \end{environment}
%
%
% \begin{macro}{\opening}
%   This macro sets the opening line of the letter.
%    \begin{macrocode} 
\opening{Geacht College,}
%    \end{macrocode}
% \end{macro}
%    \begin{macrocode}
\lipsum[1-10]
%    \end{macrocode}
% \begin{macro}{\opening}
%   This macro sets the closing line of the letter and the name of the sender.
%    \begin{macrocode} 
\closing{Hoogachtend,}
%    \end{macrocode}
% \end{macro}
%
%
%    \begin{macrocode}
\end{letter}
\end{document}
%    \end{macrocode}
%    \begin{macrocode}
%&lt;/example&gt;
%    \end{macrocode}
%    \begin{macrocode}
%&lt;*gridtest&gt;
%    \end{macrocode}
%
%
%    \begin{macrocode}
\documentclass[author=medewerker,faculty=fwn]{LEIletter}
\leilnumber{MEdW/123}
\leilyourref{12 april 2019}
\leilsubject{Brieven Schrijven in Huisstijl met Latex.}
\usepackage{tikz}
\usepackage{atbegshi}[2009/12/02]
\AtBeginShipout{%
    \AtBeginShipoutUpperLeft{%
      \put(0,0){%
        \makebox(0,0)[lt]{%
          \begin{tikzpicture}[%
          ]%
            \useasboundingbox
              (0mm,\paperheight) rectangle (0mm,\paperheight);%
            \draw[%
              style={yshift=\paperheight,yscale=-1},%
              step=14pt,%
              style=help lines,%
              ultra thin%
            ] (0mm,0mm) grid [xstep=24mm,ystep=14pt] (\paperwidth,\paperheight); 
          \end{tikzpicture}%
        }%
      }%
    }%
}
\usepackage{lipsum}
\usepackage{booktabs}
\begin{document}
\begin{letter}{College van Bestuur\newline%
               Universiteit van Leiden\newline%
               Rapenburg 70, Leiden
               }
\opening{Geacht College,}
\lipsum[1-2]
\section*{Hoofdzaak}
\lipsum[3]
\subsection*{Bijzaak}
\lipsum[4]
\begin{itemize}
	\item foo
	\item bar
\end{itemize}
\lipsum[6]

\begin{gridfltenv}
\begin{tabular}{@{}llr@{}} \toprule
\multicolumn{2}{c}{Item} \\ % \cmidrule(r){1-2}
Animal &amp; Description &amp; Price (\$)\\ \midrule
Gnat  &amp; per gram  &amp; 13.65 \\
      &amp; each      &amp; 0.01 \\
Gnu   &amp; stuffed   &amp; 92.50 \\
Emu   &amp; stuffed   &amp; 33.33 \\
Armadillo &amp; frozen &amp; 8.99 \\ \bottomrule
\end{tabular}
\end{gridfltenv}

\lipsum[6]
\begin{enumerate}
	\item foo
	\item bar
\end{enumerate}
\lipsum[7]
\begin{gridenv}
	\begin{equation}
		\sqrt{x^2+y^2}=z
	\end{equation}
\end{gridenv}	
\lipsum[8]
\closing{Best regards,}
\end{letter}
\end{document}
%    \end{macrocode}
%
%
%    \begin{macrocode}
%&lt;/gridtest&gt;
%    \end{macrocode}
%\Finale</pre></body></html>