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%%  Doc-Source file to use with LaTeX2e
%%  Copyright (C) 2018 Sebastian Friedl
%%
%%  This work is subject to the LaTeX Project Public License, Version 1.3c or -- at
%%  your option -- any later version of this license.
%%  The work consists of the files lualatex-truncate.dtx, lualatex-truncate.ins,
%%  lualatex-truncate-doc.dtx and the derived file lualatex-truncate.sty
%%
%%  This work has the LPPL maintenance status â€˜maintainedâ€™.
%%  Current maintainer of the work is Sebastian Friedl.
%%
%%  -------------------------------------------------------------------------------------------
%%
%%  A LuaLaTeX wrapper for the truncate package
%%
%%  -------------------------------------------------------------------------------------------
%%
%%  Please report bugs and other problems as well as suggestions for improvements
%%  to my email address (sfr682k@t-online.de).
%%
%%  -------------------------------------------------------------------------------------------
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% !TeX spellcheck=en_US

\documentclass[11pt]{ltxdoc}

\usepackage{iftex}
\RequireLuaTeX

\usepackage[no-math]{fontspec}
\usepackage{polyglossia}
\setdefaultlanguage{english}
\usepackage[english]{selnolig}

\usepackage{array}
\usepackage{csquotes}
\usepackage{hologo}
\usepackage{multicol}
\usepackage{xcolor}


\parindent0pt

\usepackage[erewhon]{newtxmath}
\setmainfont{erewhon}
\setsansfont[Scale=MatchLowercase]{Source Sans Pro}
\setmonofont[Scale=MatchLowercase]{Hack}

\usepackage[a4paper,left=4.50cm,right=2.75cm,top=3.25cm,bottom=2.75cm,nohead]{geometry}


\hyphenation{mo-dify-ing}

\def\Lua{\textsf{Lua}\ignorespaces}

\usepackage[unicode, pdfborder={0 0 0}, linktoc=all, hyperindex=false]{hyperref}
\usepackage{bookmark}% fix PDF bookmark issues caused by hyperref



\MakeShortVerb{"}
\CheckSum{55}

\renewcommand*{\usage}[1]{\hyperpage{#1}}
\renewcommand*{\main}[1]{\hyperpage{#1}}

\newcommand*{\sty}[1]{\textsf{#1}}
\newcommand*{\opt}[1]{\texttt{#1}\index{#1=\texttt{#1}~~option|main}}

\def\param#1{\textit{\rmfamily\ensuremath{\langle}#1\ensuremath{\rangle}}}
\def\DescribeOption#1{\marginpar{\raggedleft\PrintDescribeMacro{#1}}}


\PageIndex
\RecordChanges




\title{The \sty{lualatex-truncate} package \\ {\large\url{https://gitlab.com/SFr682k/lualatex-truncate}}}
\author{Sebastian Friedl \\ \href{mailto:sfr682k@t-online.de}{\ttfamily sfr682k@t-online.de}}
\date{2018/08/22 (v1.1)}

\hypersetup{pdftitle={The lualatex-truncate package},pdfauthor={Sebastian Friedl}}

\begin{document}
    \maketitle
    \thispagestyle{empty}
    
    
    
    
    \medskip
    \begin{abstract}\centering
        \hspace{-1.5em}%
        This package provides a wrapper for using the \sty{truncate} package\footnote{available at \url{https://ctan.org/pkg/truncate}},
        thus fixing issues related to \hologo{LuaTeX}'s hyphenation mechanism.
    \end{abstract}
    
    
    
    \tableofcontents
    
    
    
    
    \clearpage
    
    
    \subsection*{Dependencies and other requirements}
    \addcontentsline{toc}{subsection}{Dependencies and other requirements}
    \sty{lualatex-truncate} requires \LaTeXe\ and depends on the following packages:
    \begin{multicols}{3}\sffamily\centering
        if\kern0pt tex \\ letltxmacro \\ truncate
    \end{multicols}
    
    
    \subsection*{Installation}
    \addcontentsline{toc}{subsection}{Installation}
    Extract the \textit{package} file first:
    \begin{enumerate}
        \item Run \LaTeX\ over the file "lualatex-truncate.ins"
        \item Move the resulting ".sty" file to "TEXMF/tex/lualatex/lualatex-truncate/"
    \end{enumerate}
    
    Then, you can compile the \textit{documentation} yourself by executing \\[\smallskipamount]
    "lualatex lualatex-truncate-doc.dtx" \\
    "makeindex -s gind.ist lualatex-truncate-doc.idx" \\
    "makeindex -s gglo.ist -o lualatex-truncate-doc.gls lualatex-truncate-doc.glo" \\
    "lualatex lualatex-truncate-doc.dtx" \\
    "lualatex lualatex-truncate-doc.dtx"
    
    \smallskip
    or just use the precompiled documentation shipped with the source files. \\
    In both cases, copy the files "lualatex-truncate-doc.pdf" and "README.md" to \\
    "TEXMF/doc/lualatex/lualatex-truncate/"
    
    
    \subsection*{License}
    \addcontentsline{toc}{subsection}{License}
    \textcopyright\ 2018 Sebastian Friedl
    
    \smallskip
    This work may be distributed and/or modified under the conditions of the \LaTeX\ Project Public License, either version 1.3c of this license or (at your option) any later version.
    
    \smallskip
    The latest version of this license is available at \url{http://www.latex-project.org/lppl.txt} and version 1.3c or later is part of all distributions of \LaTeX\ version 2008-05-04 or later.
    
    \smallskip
    This work has the LPPL maintenace status \enquote*{maintained}. \\
    Current maintainer of this work is Sebastian Friedl.
    
    \medskip
    This work consists of the following files:
    \begin{itemize} \itemsep 0pt
        \item "lualatex-truncate.sty",
        \item "lualatex-truncate.ins",
        \item "lualatex-truncate-doc.dtx" and
        \item the derived file "lualatex-truncate.sty"
    \end{itemize}





    % DOCUMENTATION PART ----------------------------------------------------------------------
    \clearpage
    \part{The documentation}
    \begin{center}
        \colorbox{red!75!black}{\colorbox{white}{\begin{minipage}{.95\textwidth}
            \textbf{\color{red!75!black}\large  Don't load the \sty{truncate} package in your preamble!!}
            
            \medskip
            This task is already done for you by \sty{lualatex-truncate}!
        
            \smallskip
            Also, all package options stated in this documentation are meant to be passed to \sty{lualatex-truncate}; otherwise they can't be processed by the wrapper mechanism.
        \end{minipage}}}
    \end{center}
    
    
    \subsection*{Truncating text to a given width%
                 \footnote{This section has been adapted from \sty{truncate}'s documentation: \\
                           \indent\indent\url{http://mirrors.ctan.org/macros/latex/contrib/truncate/truncate.pdf}}}
    \addcontentsline{toc}{subsection}{Truncating text to a given width}
    
    \leavevmode%
    \DescribeOption{\truncate}%
    The package defines a command "\truncate["\param{marker}"]{"\param{width}"}{"\param{text}"}".

    If the text is too wide to fit in the specified width, then it is truncated, and a continuation marker is shown at the end.
    The default marker, used when the optional \texttt{[\param{marker}]} parameter is omitted, is "\,\dots". You can change this default by redefining \DescribeMacro{\TruncateMarker}"\TruncateMarker" (e.g.~"\renewcommand\TruncateMarker{\dots}").

    \medskip
    Normally, the text (no matter whether truncated or not) is printed flushed-left in a box with exactly the width specified. The package option \DescribeOption{fit}\opt{fit} causes the output text to have its natural width, up to a maximum of the specified width.

    \medskip
    Normally, the text won't be truncated in the middle of a word, nor at a space specified with a tie ("~"). For example:
    \begin{quote}
        "\truncate{122pt}{This text has been~truncated}"
    \end{quote}
    gives
    \begin{quote}
        \enquote{\hbox to 122pt {This text has\,\dots\hfill}}
    \end{quote}

    \medskip
    You can use one of the package options \DescribeOption{hyphenate}\opt{hyphenate}, \DescribeOption{breakwords}\opt{breakwords} or \DescribeOption{breakall}\opt{breakall} to allow truncating in the middle of words. The first two only truncate at hyphenation points; with the only difference that \opt{breakwords} suppresses the hyphen character.
    On the other hand, \opt{breakall} allows truncation at any character. For example:
    \begin{quote}
        "\truncate{122pt}{This text has been~truncated}"
    \end{quote}
    gives
    \begin{quote}
        \begin{tabular}{l@{\quad}l}
            \enquote{\hbox to 122pt {This text has been trun-\,\dots\hfill}}  &amp; (package option \texttt{hyphenate}) \\
            \enquote{\hbox to 122pt {This text has been trun\,\dots~\hfill}}  &amp; (package option \texttt{breakwords}) \\
            \enquote{\hbox to 122pt {This text has been trunc\,\dots\hfill}}  &amp; (package option \texttt{breakall})
        \end{tabular}
    \end{quote}
    
    [All of these options work through (Lua)\TeX's hyphenation mechanism.]


    \subsection*{Known limitations}
    \addcontentsline{toc}{subsection}{Known limitations}
    \begin{itemize}
        \item
            \sty{lualatex-truncate} provides a \textit{wrapper} fixing \hologo{LuaTeX}-related \enquote{glitches} in the \sty{truncate} package.
            It doesn't (and won't) fix any bugs or \enquote{undocumented features} introduced by the \sty{truncate} package itself.
    \end{itemize}

    
    
    
    
    
    
    
    % Start determining the checksum from here
    \StopEventually{%
        \clearpage
        \phantomsection
        \addcontentsline{toc}{part}{Index}%
        \PrintChanges
        \setcounter{IndexColumns}{2}
        \IndexPrologue{\section*{Index}}
        \PrintIndex}
    
    
    
    \vspace{3\bigskipamount}
    \part{The package code}
    \CodelineNumbered
    \DocInput{lualatex-truncate.dtx}
    
    
    \Finale
\end{document}

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