path: root/Master/texmf-dist/source/latex/doclicense/doclicense.dtx

% \iffalse meta-comment
%
% Copyright (C) 2015-2020 by Robin Schneider <ypid@riseup.net>
%
% This work may be distributed and/or modified under the
% conditions of the LaTeX Project Public License, either version 1.3
% 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 1.3 or later is part of all distributions of LaTeX
% version 2005/12/01 or later.
%
% This work has the LPPL maintenance status `maintained'.
%
% The Current Maintainer of this work is Robin Schneider.
%
% This work consists of the files doclicense.dtx and doclicense.ins
% and the derived files doclicense.sty and doclicense.pdf.
%
% \fi
%
% \iffalse
%<*driver>
\ProvidesFile{doclicense.dtx}
%</driver>
%<package>%% See file 'doclicense.dtx' for copyright and license.
%<package>\NeedsTeXFormat{LaTeX2e}[1998/12/01]
%<package>\ProvidesPackage{doclicense}
%<*package>
    [2020/05/27 v2.0.0 Support for putting documents under a license]
%</package>
%
%<*driver>
\documentclass[english]{ltxdoc}
\setlength{\parindent}{0pt}
\newcommand{\PackageURL}{https://github.com/ypid/latex-packages/tree/master/doclicense}
\newcommand{\PackageCTANURL}{https://www.ctan.org/pkg/doclicense}
\newcommand{\PackageAuthor}{Robin Schneider}
\newcommand{\PackageAuthorEmail}{ypid@riseup.net}
\newcommand{\PackageName}{\PrintPackage{doclicense}}
\newcommand{\PrintPackage}[1]{\textsf{#1}}
\newcommand{\PrintOptionF}[1]{\emph{#1}} %% ^^A This macro is used for
%% ^^A explaining any parameter when they first come up in the manual.
\newcommand{\DescribePara}[1]{\marginpar{\raggedleft\strut\MacroFont\string#1}}
\usepackage[
  hyphens,
  obeyspaces,
  spaces,
]{url}
\usepackage{
  babel,
  csquotes,
  xcolor,
  hyperxmp,
  hypdoc,
  nameref,
  xspace,
  eqlist,
}
%% ^^A https://tex.stackexchange.com/a/95893/32320
\setlength\IndexMin{100pt}
\usepackage[
  type={CC},
  modifier={by-sa},
  version={4.0},
  % imagemodifier={-80x15},% chktex 29
  hyphenation={RaggedRight},
]{doclicense}
\GetFileInfo{doclicense.dtx}
\hypersetup{
  pdftitle={A manual for \PackageName},
  pdfauthor={\PackageAuthor{} <\PackageAuthorEmail>},
  pdfsubject={\fileinfo},
  baseurl={\PackageURL},
  pdfkeywords={This document corresponds to \PackageName\nobreakspace\fileversion,
    dated \filedate},
}

\title{The \PackageName{} package\thanks{This document
corresponds to \PackageName\nobreakspace\fileversion, dated \filedate.}}
\author{\PackageAuthor\\
  \texttt{\href{mailto:\PackageAuthorEmail?subject=LaTeX package doclicense%
    \&body=Dear Robin Schneider,}%
    {\PackageAuthorEmail}%
  }%
}

\EnableCrossrefs%
\CodelineIndex%
\RecordChanges%
\begin{document}
  \DocInput{doclicense.dtx}
  \PrintChanges%
  \PrintIndex%
\end{document}
%</driver>
% \fi
%
% ^^A \CheckSum{0}
% ^^A I use version control and so on which has much better checksums :)
%
% \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         \~}
%
% \changes{0.07}{2015/02/05}{Initial version}
% \changes{0.08}{2015/02/06}{Added support for CC-zero and CC-pd and small improvements}
% \changes{0.09}{2015/02/07}{Added list of supported licenses to docu and added option imagemodifier.
%   Also renamed macro \cmd{\doclicenseLicense} to \cmd{\doclicenseThis}}
% \changes{0.10}{2015/02/13}{Added support for hyperxmp}
% \changes{1.0}{2015/03/30}{Removed space before quotes (Example: \enquote{CC } $\rightarrow$ \enquote{CC})}
% \changes{1.1}{2015/04/06}{Added support for Creative Commons 4.0 and added \cmd{\doclicenseImageFileName}}
% \changes{1.2}{2015/04/06}{Allow \cmd{\doclicenseModifier} to be used with hyperref. Fixed \cmd{\doclicenseIcon} macro, added missing image and wrote test framework. Added notes about how to add translations. Added Spanish translation.}
% \changes{1.4.0}{2015/12/13}{Added \cmd{\doclicensePlainFullText} and \cmd{\doclicenseFullText} macros Thanks to \href{https://github.com/siefkenj}{siefkenj} for the help.}
% \changes{1.4.1}{2016/04/10}{Translation fixes for: fr, en-gb. Included missing CC-by-nc-nd icon (US dollar).}
% \changes{1.5.0}{2016/04/24}{Allow to change the way text is typeset by \cmd{\doclicenseThis}.}
% \changes{1.6.0}{2017/10/07}{Added Russian and Italian translation. Added `imageposition` and `imagedistance` parameters.}
% \changes{1.7.0}{2018/02/17}{Update Russian and Spanish translation. Fix issue with unescaped newline causing two spaces between license name and 'license' word.}
% \changes{1.7.1}{2018/04/24}{Include .eps versions of the images to allow using `latex` with dvi output. Thanks to robertpetry for reporting.}
% \changes{1.8.0}{2018/06/10}{Added Polish translation.}
% \changes{1.9.0}{2019/04/07}{Added Catalan, Galician, Chinese and Portuguese translation. Detect and give hint when enquote macro is already defined. Fix LaTeX Error: Too deeply nested.}
% \changes{1.10.0}{2019/06/05}{Added Brazilian translation. Update Chinese and Portuguese translation. Do not use enumitem for list label customization (beamer compatibility).}
% \changes{1.10.1}{2020/04/12}{Fix image for CC-BY-NC EU. Fix URL for CC-PDDC. Improve wording for catalan language.}
% \changes{2.0.0}{2020/05/27}{Add 80x15 version of CC images which can be used with the imagemodifier option. Fix slight color offset for all CC images caused by bad image conversion. Thanks to rodrigoalcarazdelaosa for reporting. Fix \cmd{\doclicenseThis} support for twocolumn layouts. Thanks to Nao Pross. Soft require package options "type", "modifier" and "version" now. Defaults are deprecated. This will become a package error in an upcoming major version of the package, with the earliest release in 2021-07 to give people time to migrate. Remove Creative Commons PD which has been replaced by CC-zero as of 2010-10-11. Update example license used for examples in manual to CC-BY-SA-4.0.}
%

%
%% ^^A nag warned about the center environment and it really messes up spacing.
%
% \DoNotIndex{\RequirePackage, \DeclareOption, \ProcessOptions}
% \DoNotIndex{\PackageWarning, \MessageBreak}
% \DoNotIndex{\DeclareRobustCommand, \newcommand, \renewcommand, \def, \edef}
% \DoNotIndex{\DeclareStringOption, \ProcessLocalKeyvalOptions}
% \DoNotIndex{\ProcessKeyvalOptions, \SetupKeyvalOptions, \DeclareBoolOption}
% \DoNotIndex{\newenvironment}
% \DoNotIndex{\if, \else, \fi, \ifcase, \or, \ifthenelse, \AND, \OR, \value, \relax}
% \DoNotIndex{\loop, \repeat, \the, \ifnum}
% \DoNotIndex{\equal, \boolean, \@currname, \newcounter, \setcounter}
% \DoNotIndex{\stepcounter, \addtocounter}
% \DoNotIndex{\endinput, \begin, \end}
% \DoNotIndex{\not}
%
% \maketitle
%
% \phantomsection
% \addcontentsline{toc}{section}{\abstractname}
% \begin{abstract}
% Support for putting documents under a license. \\
% Information site on CTAN: \url{\PackageCTANURL} \\
% Example on Stackexchange: \url{https://tex.stackexchange.com/a/226788/32320} \\
% Fork me on GitHub: \url{\PackageURL} \end{abstract}
%
% \tableofcontents
%
% \section{Introduction}
% The \PackageName{} package allows you to put your document under a
% license and include a link to read about the license or include an icon or
% image of the license.  Currently, only \doclicenseLongType is supported but this
% package is designed to handle all kinds of licenses. See \nameref{sec:contributing}.
%
% \section{Usage}
% Just load the package
% \begin{quote}
%   |\usepackage{| \\
%   |%  babel,| \\
%   |%  hyperref,| \\
%   |%  hyperxmp,| \\
%   |}| \\
%   |\usepackage[| \\
%   |  type={CC},| \\
%   |  modifier={by-sa},| \\
%   |  version={4.0},| \\
%   |]{doclicense}|
% \end{quote}
% in the preamble of your \LaTeXe{} source file and change the package options
% to the license you want to put the document under.
%
% This will explicitly set the license to \doclicenseNameRef.
%
% If the \PrintPackage{hyperxmp} package is loaded, then the options
% \PrintOptionF{pdflicenseurl} and \PrintOptionF{pdfcopyright} will be set
% by \PackageName{} to the corresponding values
% (\enquote{\url{\doclicenseURL}} and \enquote{\doclicenseLongText{}}).
%
% \section{Package options}
%
% Sets the license type. \DescribePara{type}
% Like in the previous example, the type can be
% \enquote{CC} to cover all the \doclicenseLongType licenses.
% Please make sure that the type is all uppercase. See the \nameref{sec:supported-licenses} section for a complete list.
%
% Allows to
% select different subclasses of a license. In the
% example it is \enquote{by-sa}.
% Please make sure that the type is all lowercase. See the \nameref{sec:supported-licenses} section for a complete list.
%
% As \DescribePara{version} there can be more than one version of a license, the version can also be set.
%
% This package can output some texts like the long license name.
% \DescribePara{lang}
% Because of this, there needs to be a way to specify the language to use.
% If this parameter is omitted, then this package will default to
% \cmd{\languagename} which is normally set by packages like
% \PrintPackage{babel} or \PrintPackage{polyglossia}.
%
% Supported languages:
% ^^A Sorted alphabetically.
% \begin{eqlist}
%   \item[Brazilian]  Added by \href{https://github.com/iagows}{Iago}.
%   \item[Catalan]    Added by \href{https://github.com/elancha98}{Ernesto Lanchares}.
%   \item[Chinese]    Added by \href{https://github.com/sd44}{sd44}.
%   \item[English]    Added by \href{https://github.com/ypid}{Robin Schneider}.
%   \item[French]     Added by \href{https://github.com/ericguirbal}{\'Eric Guirbal}.
%   \item[Galician]   Submitted by Email.
%   \item[German]     Added by \href{https://github.com/ypid}{Robin Schneider}.
%   \item[Italian]    Added by \href{https://github.com/rig8f}{Filippo Rigotto}.
%   \item[Polish]     Added by \href{https://github.com/jsbien}{jsbien}.
%   \item[Portuguese] Added by \href{https://github.com/alexandre1985}{Daniel Alexandre Cerqueira Santos}.
%   \item[Russian]    Added by \href{https://github.com/bergentroll}{Anton Karmanov}.
%   \item[Spanish]    Added by \href{https://github.com/elsudano}{Carlos}. Updated by \href{https://github.com/IgnacioFDM}{IgnacioFDM}.
%
%
%
%
% \end{eqlist}
%
% Image position for \cmd{\doclicenseThis}: right (default) or left.
% \DescribePara{imageposition}
%
% Default image width for the license image.
% \DescribePara{imagewidth}
%
% Distance between text and image in \cmd{\doclicenseThis}.
% \DescribePara{imagedistance}

% Select different variations of license images.
% \DescribePara{imagemodifier}
% For example, Creative Commons provides more than one image for one version.
% See the \href{https://creativecommons.org/about/downloads}{download page}.
% You will note that there are by-nc.eu and by-nc which only differ in the money unit.
% Based on the loaded language, the money unit is set to a suitable default. You can change this with:
% \begin{quote}
%   |\usepackage[| \\
%   |  imagemodifier={-eu},| \\
%   |]{doclicense}|
% \end{quote}
%
% Also, there is 80x15 which uses letters instead of icons for the modifiers in the image.
% \begin{quote}
%   |\usepackage[| \\
%   |  imagemodifier={-80x15},| \\
%   |]{doclicense}|
% \end{quote}
%
% If this is not given, we default to 88x31.
%
% This option allows you to specify
% \DescribePara{hyphenation}
% a macro name which is going to be expanded
% in the minipage environment of \cmd{\doclicenseThis}.
% That allows you to change the behaviour how \cmd{\doclicenseLongText} is
% typeset. By default, this option is not enabled.
%
% One possible use case is to set the option to \enquote{RaggedRight}.
% This will use the \cmd{\RaggedRight} macro provided by the
% \PrintPackage{ragged2e} package\footnote{The \PrintPackage{ragged2e} package will be loaded when it is required.}) with the intention of limiting the number of
% hyphenations while still allowing a hyphenation by typesetting
% \cmd{\doclicenseLongText} as ragged text.
%
% The idea of using ragged text is that the \cmd{\doclicenseLongText} is
% usually one or two full line and one half full line so avoiding hyphenations
% might look better compared to justified text.
%
% \enquote{RaggedRight} is also the setting used for this manual.
% \cmd{\doclicenseThis} did not produce a hyphenation in case of this
% manual but \TeX{} did fill up the first text line to it’s full width
% by adding additional space between words. This has been be avoided by setting
% the following option for this document:
%
% \begin{quote}
%   |\usepackage[| \\
%   |  hyphenation={RaggedRight},| \\
%   |]{doclicense}|
% \end{quote}
%
% Another option which can make sense is the \cmd{\raggedright} macro which
% more drastically limits the number of hyphenations. This can be set as shown
% below:
%
% \begin{quote}
%   |\usepackage[| \\
%   |  hyphenation={raggedright},| \\
%   |]{doclicense}|
% \end{quote}
%
% \section{Macros}
% \DescribeMacro{\doclicenseType}
% Expands to the type as set in the package options. Example: \enquote{\doclicenseType{}}
%
% \DescribeMacro{\doclicenseLongType}
% Same as \cmd{\doclicenseType} except that it expands to the long license
% type. Example: \enquote{\doclicenseLongType{}}
%
% \DescribeMacro{\doclicenseModifier}
% Expands to the modifier as set in the package options. Example: \enquote{\doclicenseModifier{}}
%
% \DescribeMacro{\doclicenseVersion}
% Expands to the version as set in the package options. Example: \enquote{\doclicenseVersion{}}
%
% \DescribeMacro{\doclicenseURL}
% Expands to the official URL about the license. Note that it expands to the
% raw URL string without the use of \cmd{\href} or similar. If you want the
% link to be clickable then you can use \cmd{\href} or \cmd{\url} from the
% \PrintPackage{hyperref} package or just read on because the following macros
% can also do this for your. Example:
% \enquote{\doclicenseURL{}}
%
% \DescribeMacro{\doclicenseName}
% Expands to the short name of the license. Example: \enquote{\doclicenseName{}}
%
% \DescribeMacro{\doclicenseLongName}
% Expands to the long name of the license. Example: \enquote{\doclicenseLongName{}}
%
% \DescribeMacro{\doclicenseNameRef}
% Same as \cmd{\doclicenseName} except that it links to the URL of the license.
% Example: \enquote{\doclicenseNameRef{}}
%
% \DescribeMacro{\doclicenseLongNameRef}
% Same as \cmd{\doclicenseLongName} except that it links to the URL of the
% license. Example:
% \enquote{\doclicenseLongNameRef{}}
%
% \DescribeMacro{\doclicenseText}
% Expands to a localized text which states that this document is licensed under
% the license. Example:
% \enquote{\doclicenseText{}}
%
% \DescribeMacro{\doclicenseLongText}
% Same as \cmd{\doclicenseText} except that it uses the long name of the license.
% Example: \enquote{\doclicenseLongText{}}
%
% \DescribeMacro{\doclicensePlainFullText}
% Verbatim prints the full license text.
%
% ^^A Don’t ask why I inserted that line break … (LaTeX made the \doclicensePlainFullText red)
%
% An example can be found in the \nameref{sec:plain_license_text} section.
%
% \DescribeMacro{\doclicensePlainFullTextFileName}
% \hspace{2.5em}Expands to the file name which the \cmd{\doclicensePlainFullTextFileName} macro uses to \cmd{\input} the license text file.
%
% \DescribeMacro{\doclicenseFullText}
% Nicely prints the full license text.
%
% ^^A Don’t ask why I inserted that line break … (LaTeX made the \doclicenseFullText red)
%
% An example can be found in the \nameref{sec:pretty_license_text} section.
%
% \DescribeMacro{\doclicenseFullTextFileName}
% Expands to the file name which the \cmd{\doclicenseFullText} macro uses to \cmd{\input} the license text file.
%
%
% \DescribeMacro{\doclicenseIcon}
% Expands to a icon of the license. Example:
% \enquote{\doclicenseIcon{}}. This macro is based on the
% \PrintPackage{ccicons} package.
%
% \DescribeMacro{\doclicenseTypeIcon}
% Expands to a icon of the license type. Example:
% \enquote{\doclicenseTypeIcon{}}. This macro is based on the
% \PrintPackage{ccicons} package.
%
% \DescribeMacro{\doclicenseImage}
% This is kind of similar to \cmd{\doclicenseIcon} but it will typeset an
% bigger pictogram of the license. Example:
% \enquote{\doclicenseImage}
%
% Note that you can change the image size with the \oarg{imagewidth} parameter
% like this:
% \enquote{\doclicenseImage[imagewidth=2em]}
%
% \begin{quote}
%   |\doclicenseImage[imagewidth=2em]|
% \end{quote}
%
% The images are bundled with the \PackageName{} package as vector graphics.
%
% \DescribeMacro{\doclicenseImageFileName}
% This macro expands to the file name of the image which the
% \cmd{\doclicenseImage} typesets.  You can use this file name with
% \cmd{\includegraphics} if you need more flexibility over how the image is
% typeset.
%
% The current file name is: \enquote{\doclicenseImageFileName}
%
% You do not have to worry about the file path. Normally your \LaTeX{} environment
% will find the image for you.
%
% \DescribeMacro{\doclicenseThis}
% And last but not least there is the \cmd{\doclicenseThis} macro which will
% typeset the \cmd{\doclicenseText} next to the \cmd{\doclicenseImage} in a
% \enquote{minipage} environment. This will look like the following:
%
% \doclicenseThis
%
% And here is how it looks with the imagemodifier option set to \enquote{-80x15}:
%
% \makeatletter
% \renewcommand{\doclicense@imagemodifier}{-80x15}
% \doclicenseThis
% \renewcommand{\doclicense@imagemodifier}{-88x31}
% \makeatother
%
% \section{Supported licenses}
% \label{sec:supported-licenses}
%
% Currently only Creative Commons is supported.
% The license type, modifier and version should be based on
% \href{https://spdx.org/licenses/}{SPDX license identifiers}. Direct support
% for SPDX license identifiers should be considered when supporting new
% licenses.
%
% \subsection{CC (Creative Commons)}
%
% \makeatletter
% ^^A Reverse sorted.
% \begin{eqlist}
%   \item[CC0-1.0] \@nameuse{doclicense@lang@lic@CC@zero@1.0}
%   \item[CC-BY-4.0] \@nameuse{doclicense@lang@lic@CC@by@4.0}
%   \item[CC-BY-3.0] \@nameuse{doclicense@lang@lic@CC@by@3.0}
%   \item[CC-BY-SA-4.0] \@nameuse{doclicense@lang@lic@CC@by-sa@4.0}
%   \item[CC-BY-SA-3.0] \@nameuse{doclicense@lang@lic@CC@by-sa@3.0}
%   \item[CC-BY-ND-4.0] \@nameuse{doclicense@lang@lic@CC@by-nd@4.0}
%   \item[CC-BY-ND-3.0] \@nameuse{doclicense@lang@lic@CC@by-nd@3.0}
%   \item[CC-BY-NC-4.0] \@nameuse{doclicense@lang@lic@CC@by-nc@4.0}
%   \item[CC-BY-NC-3.0] \@nameuse{doclicense@lang@lic@CC@by-nc@3.0}
%   \item[CC-BY-NC-SA-4.0] \@nameuse{doclicense@lang@lic@CC@by-nc-sa@4.0}
%   \item[CC-BY-NC-SA-3.0] \@nameuse{doclicense@lang@lic@CC@by-nc-sa@3.0}
%   \item[CC-BY-NC-ND-4.0] \@nameuse{doclicense@lang@lic@CC@by-nc-nd@4.0}
%   \item[CC-BY-NC-ND-3.0] \@nameuse{doclicense@lang@lic@CC@by-nc-nd@3.0}
% \end{eqlist}
% \makeatother
%
% \section{Retired licenses}
%
% Licenses get updated and sometimes fully replaced.
% This section clarifies how \PackageName{} handles this.
%
% If there is consensus that the old license has no valid use case anymore and
% it is possible and allowed for everyone compiling a document to update the
% license, then the old license will be removed from \PackageName{} in the next
% major version.
%
% Otherwise, \PackageName{} will keep supporting it to ensure that documents
% using those licenses can still be compiled in the future.
%
% List of retired licenses:
%
% \makeatletter
% ^^A Reverse sorted.
% \begin{eqlist}
%   \item[CC-PDDC] Copyright-Only Dedication
% \end{eqlist}
% \makeatother
%
% \section{Contributing}
% \label{sec:contributing}
% This package is being developed on GitHub: \url{\PackageURL}. When you want
% to modify the .sty file, make sure that you make your changes in the .dtx
% file instead, as the .sty file is automatically generated.
%
% In case you want to add a translation for your language then just copy the
% file \path{doclicense-english.ldf} and replace the \enquote{english} in
% the filename with your language code (same as the language code used by
% \PrintPackage{babel}) and translate the file.
% If there are multiple language
% codes which should map to the same translation then have a look at the file
% \path{doclicense-american.ldf}.
%
% When you are done and have tested your translation (modify and run the
% \path{run_tests} script) then please send me the translated file(s) either
% via Email or preferably by opening a pull request on GitHub so that I can
% include them in the next release.
%
% \section{Plaintext license text}
% \label{sec:plain_license_text}
%
% The following is an example output of the \cmd{\doclicensePlainFullText} macro.
%
% \doclicensePlainFullText
%
% \section{Pretty license text}
% \label{sec:pretty_license_text}
%
% The following is an example output of the \cmd{\doclicenseFullText} macro.
%
% \doclicenseFullText
%
% \StopEventually{}
%
% \newpage
% \section{Implementation}
% \iffalse
%<*package>
% \fi
% \subsection{Declaring the options}
%    \begin{macrocode}
%% Parameters (((
\RequirePackage{kvoptions}
\DeclareStringOption{type}
\DeclareStringOption{modifier}
\DeclareStringOption{version}
\DeclareStringOption{lang}
\DeclareStringOption[-88x31]{imagemodifier}% chktex 29
\DeclareStringOption[right]{imageposition}
\DeclareStringOption[10em]{imagewidth}
\DeclareStringOption[2em]{imagedistance}
\DeclareStringOption{hyphenation}
%% )))

%    \end{macrocode}
% To test if all parameters are valid the macro |\ProcessLocalKeyvalOptions*|
% is expanded to ensure this before leaving the preamble. This is the only
% purpose for the |\ProcessLocalKeyvalOptions*| macro in this case.
%    \begin{macrocode}
\ProcessLocalKeyvalOptions*

%    \end{macrocode}
% \subsection{Dependencies}
%    \begin{macrocode}
%% Dependencies (((
\RequirePackage{xifthen}
\RequirePackage{xstring}
\RequirePackage{etoolbox} %% \ifcsdef
\RequirePackage{xspace}
\RequirePackage{verbatim}

%% Custom enumerate list with adjusted labels
%% that match the license text conventions
\newenvironment{doclicense@enumerate}{%
  \begin{enumerate}
    \renewcommand{\labelenumi}{(\alph{enumi})}%
    \renewcommand{\labelenumii}{(\arabic{enumii})}%
    \renewcommand{\labelenumiii}{(\Alph{enumiii})}%
    \renewcommand{\labelenumiv}{(\roman{enumiv})}%
}{\end{enumerate}}

\ifthenelse{
  \equal{\doclicense@hyphenation}{}
}{}{%
  \RequirePackage{ragged2e}

  \ifthenelse{\isnamedefined{\doclicense@hyphenation}}{}{%
    \PackageError{doclicense}{Hyphenation macro not defined}
      {The macro name given via the hyphenation option is not defined.}%
  }
}
\AtEndPreamble{%
  \@ifpackageloaded{csquotes}{
    %% csquotes has already been loaded so we are fine.
  }{
    \ifcsdef{enquote}{
      %% \enquote is defined but not by csquotes.
      \@ifpackageloaded{biblatex}{
        \PackageError{doclicense}{The enquote macro is defined by biblatex}
          {This package assumes that the enquote macro is defined by the
            csquotes package. Please load csquotes before you load biblatex so
            that biblatex does not define enquote instead.}%
      }{
        \PackageError{doclicense}{The enquote macro is defined by unknown package}
          {This package assumes that the enquote macro is defined by the
            csquotes package. Please check why enquote is defined without
            csquotes being loaded. Maybe try loading csquotes early so that it
            can define the enquote macro instead.}%
      }
    }{
      \RequirePackage{csquotes}
    }
  }
  \@ifpackageloaded{ccicons}{}{\RequirePackage{ccicons}}
    %% For \doclicenseIcon
  \@ifpackageloaded{graphicx}{}{\RequirePackage{graphicx}}
    %% For \doclicenseImage
  \@ifpackageloaded{hyperref}{}{\RequirePackage{hyperref}}
  \@ifpackageloaded{hyperxmp}{%
    %% The following options are only defined when the hyperxmp package was loaded.
    \hypersetup{
      pdfcopyright  = {\doclicenseLongText},
      pdflicenseurl = {\doclicenseURL},
    }
  }{}
}
%% )))

%    \end{macrocode}
% \subsection{Deprecation handling}
%    \begin{macrocode}
%% Deprecation handling (((
\ifthenelse{
  \equal{\doclicense@type}{}
}{
  \PackageWarning{doclicense}{%
    "type" package option missing. % chktex 18
    This option is now required and the fallback to "CC" is deprecated. % chktex 18
    In an upcoming major version of doclicense, this will be a package error.
    Please explicitly pick a license of your choosing.
  }
  \renewcommand{\doclicense@type}{CC}
}{}

\ifthenelse{
  \equal{\doclicense@modifier}{}
}{
  \PackageWarning{doclicense}{%
    "modifier" package option missing. % chktex 18
    This option is now required and the fallback to "by-sa" is deprecated. % chktex 18
    In an upcoming major version of doclicense, this will be a package error.
    Please explicitly pick a license of your choosing.
  }
  \renewcommand{\doclicense@modifier}{by-sa}
}{}

\ifthenelse{
  \equal{\doclicense@version}{}
}{
  \PackageWarning{doclicense}{%
    "version" package option missing. % chktex 18
    This option is now required and the fallback is deprecated. % chktex 18
    In an upcoming major version of doclicense, this will be a package error.
    Please explicitly pick a license of your choosing.
  }
}{}
%% )))

%    \end{macrocode}
% \subsection{Declare variables and macros}
%    \begin{macrocode}
%% Declare variables (((
\newcommand{\doclicense@baseUrlCC}{https://creativecommons.org}
\newcommand{\doclicense@versionFallback}{}
\newcommand{\doclicense@versionUsed}{}
\newboolean{doclicense@licenseKnown}
\newlength{\doclicense@hsize}
\newcommand{\doclicense@longName}{%
  \@nameuse{doclicense@lang@lic@\doclicense@type @\doclicense@modifier%
    @\doclicense@versionUsed}%
}
\newcommand{\doclicense@icon}{%
  \PackageError{doclicense}{Icon not defined}
    {Please check the manual of doclicense to see what you can do about it.}%
}
\newcommand{\doclicense@modifier@uppercase}{\texorpdfstring{%
    \MakeUppercase{\doclicense@modifier}%
  }{%
    \doclicense@modifier}%
}
%% )))

%    \end{macrocode}
% \subsection{User macros}
%    \begin{macrocode}
%% User macros (((
\newcommand{\doclicenseType}{\doclicense@type\xspace}
\newcommand{\doclicenseLongType}{}
\newcommand{\doclicenseModifier}{\doclicense@modifier@uppercase\xspace}
\newcommand{\doclicenseVersion}{\doclicense@versionUsed\xspace}
\newcommand{\doclicenseName}{%
  \doclicense@type\nobreakspace\doclicense@modifier@uppercase\nobreakspace%
  \doclicense@versionUsed\xspace%
}
\newcommand{\doclicenseNameRef}{\href{\doclicenseURL}{\doclicenseName}\xspace}
\newcommand{\doclicenseLongName}{\doclicenseLongType\space%
  \doclicense@longName\xspace}
\newcommand{\doclicenseLongNameRef}{\href{\doclicenseURL}{\doclicenseLongName}}
\newcommand{\doclicenseText}{%
  \doclicense@lang@thisDoc\space
  \href{\doclicenseURL}{\enquote{\doclicenseName{}}}%
  \doclicense@lang@word@license.\xspace%
}
\newcommand{\doclicenseLongText}{%
  \doclicense@lang@thisDoc\space
  \href{\doclicenseURL}{\doclicenseLongType\space\enquote{\doclicense@longName}}%
  \doclicense@lang@word@license.\xspace%
}
\newcommand{\doclicenseIcon}{\doclicense@icon\xspace}
\newcommand{\doclicenseTypeIcon}{\doclicenseType}
% \newcommand{\doclicenseModifierIcon}{} %% Not directly provided by ccicons.
\newcommand{\doclicenseImageFileName}{%
  doclicense-\doclicense@type-\doclicense@modifier\doclicense@imagemodifier}
\newcommand{\doclicenseImage}[1][]{%
  \setkeys{doclicense}{#1}
  \href{\doclicenseURL}{%
    \includegraphics[
      width=\doclicense@imagewidth%
    ]{\doclicenseImageFileName}%
  }
}
\newcommand{\doclicensePlainFullTextFileName}{%
  doclicense-\doclicense@type-\doclicense@modifier%
  -\doclicense@versionUsed-plaintext
}
\newcommand{\doclicensePlainFullText}{%
  \verbatiminput{\doclicensePlainFullTextFileName}
}
\newcommand{\doclicenseFullTextFileName}{%
  doclicense-\doclicense@type-\doclicense@modifier-\doclicense@versionUsed-latex}
\newcommand{\doclicenseFullText}{\input{\doclicenseFullTextFileName}}% chktex 27

\newcommand{\doclicenseLicense}{\doclicenseThis} %% legacy support
\newcommand{\doclicenseThis}{%
  \setlength{\doclicense@hsize}{\linewidth-\doclicense@imagewidth-\doclicense@imagedistance}%
  \ifthenelse{\equal{\doclicense@imageposition}{left}}{%
    \begin{center}
      \begin{minipage}{\doclicense@imagewidth}
        \doclicenseImage%
      \end{minipage}
      \hfill
      \begin{minipage}{\doclicense@hsize}
        \ifthenelse{\isempty{\doclicense@hyphenation}}{}{%
          \@nameuse{\doclicense@hyphenation}%
        }%
        \doclicenseLongText%
      \end{minipage}
    \end{center}
  }{%
  % \ifthenelse{\isnamedefined{iflandscape}}{%
  %   \iflandscape{%
  %     \setlength{\doclicense@hsize}{\doclicense@hsize-10em}%
  %   }{}%
  % }{}%
  % {%
    \begin{center}
      \begin{minipage}{\doclicense@hsize}
        \ifthenelse{\isempty{\doclicense@hyphenation}}{}{%
          \@nameuse{\doclicense@hyphenation}%
        }%
        \doclicenseLongText%
      \end{minipage}
      \hfill
      \begin{minipage}{\doclicense@imagewidth}
        \doclicenseImage%
      \end{minipage}
    \end{center}
  % }
  }
}
%% )))

%    \end{macrocode}
% \subsection{Language selection}
% The following lines include the ldf file. All language dependent things
% should be stored and changed there. Note that one could also redefine
% macros like \cmd{\doclicenseLongText} if necessary.
%    \begin{macrocode}
%% Language support (((
\ifthenelse{\equal{\doclicense@lang}{}}{%
  \renewcommand{\doclicense@lang}{\languagename}}{}
\IfFileExists{doclicense-\doclicense@lang.ldf}{%
  \input{doclicense-\doclicense@lang.ldf}% chktex 27
}{%
  \PackageWarning{doclicense}{%
    No language definition for \doclicense@lang found.
    Please add one and submit a patch. Using English as fallback.
  }
  \renewcommand{\doclicense@lang}{english}
  \input{doclicense-\doclicense@lang.ldf}% chktex 27
}
\ifthenelse{\equal{\doclicense@imagemodifier}{-us}}{%
  \@namedef{doclicense@imagemodifier}{}
}{}

%% )))

%    \end{macrocode}
% \subsection{Internals}
%    \begin{macrocode}
%% Set license (((
\newcommand{\doclicense@setVersion}[1][]{%
  \ifthenelse{\equal{#1}{}}{}{%
    \renewcommand{\doclicense@versionFallback}{#1}
  }
  \ifthenelse{\equal{\doclicense@version}{}}{%
    \renewcommand{\doclicense@versionUsed}{\doclicense@versionFallback}
  }{%
    \renewcommand{\doclicense@versionUsed}{\doclicense@version}
  }
}
\newcommand{\doclicense@set}{%
  %% CC (((
  \ifthenelse{\equal{\doclicense@type}{CC}}{%
    \renewcommand{\doclicenseLongType}{Creative Commons\xspace}
    \renewcommand{\doclicenseTypeIcon}{\ccLogo\xspace}

    \doclicense@setVersion[3.0]

    %% Allow to predefine the following macros in ldf files.
    \ifcsdef{doclicense@UrlLangPart}{}{%
      \ifthenelse{\equal{\doclicense@lang@lic@CC@code}{}}{%
        \edef\doclicense@UrlLangPart{}
      }{%
        \edef\doclicense@UrlLangPart{/deed.\doclicense@lang@lic@CC@code}
      }
    }
    \ifcsdef{doclicenseURL}{}{%
      \edef\doclicenseURL{%
        \doclicense@baseUrlCC/%
        licenses/%
        \doclicense@modifier/%
        \doclicense@versionUsed\doclicense@UrlLangPart%
      }
    }
    \ifthenelse{\equal{\doclicense@modifier}{by}}{%
      \renewcommand{\doclicense@icon}{\ccby}
    }{}
    \ifthenelse{\equal{\doclicense@modifier}{by-sa}}{%
      \renewcommand{\doclicense@icon}{\ccbysa}
    }{}
    \ifthenelse{\equal{\doclicense@modifier}{by-nd}}{%
      \renewcommand{\doclicense@icon}{\ccbynd}
    }{}
    \ifthenelse{\equal{\doclicense@modifier}{by-nc}}{%
      \renewcommand{\doclicense@icon}{\ccbync}
      \IfBeginWith{\doclicense@imagemodifier}{-eu}{%
        \renewcommand{\doclicense@icon}{\ccbynceu}
      }{}
      \IfBeginWith{\doclicense@imagemodifier}{-jp}{%
        \renewcommand{\doclicense@icon}{\ccbyncjp}
      }{}
    }{}
    \ifthenelse{\equal{\doclicense@modifier}{by-nc-sa}}{
      \renewcommand{\doclicense@icon}{\ccbyncsa}
      \IfBeginWith{\doclicense@imagemodifier}{-eu}{%
        \renewcommand{\doclicense@icon}{\ccbyncsaeu}
      }{}
      \IfBeginWith{\doclicense@imagemodifier}{-jp}{%
        \renewcommand{\doclicense@icon}{\ccbyncsajp}
      }{}
    }{}
    \ifthenelse{\equal{\doclicense@modifier}{by-nc-nd}}{
      \renewcommand{\doclicense@icon}{\ccbyncnd}
      \IfBeginWith{\doclicense@imagemodifier}{-jp}{%
        \renewcommand{\doclicense@icon}{\ccbyncndjp}
      }{}
    }{}
    \ifthenelse{\equal{\doclicense@modifier}{zero}}{%
      \renewcommand{\doclicense@icon}{\cczero}
      \doclicense@setVersion[1.0]
      \edef\doclicenseURL{%
        \doclicense@baseUrlCC/%
        publicdomain/%
        \doclicense@modifier/%
        \doclicense@versionUsed\doclicense@UrlLangPart}
    }{}
    \ifthenelse{\equal{\doclicense@modifier}{pd}}{
      \PackageError{doclicense}{CC PD license removed as of version 2.0.0}{
        Creative Commons PD has been replaced by CC-zero.
        Please update your license choice.
      }%
    }{}
    \IfSubStr{\doclicense@modifier}{nc}{}{
      %% eu (Euro) does only exist for nc (non commercial) so if not nc then reset -eu.
      \ifthenelse{\equal{\doclicense@imagemodifier}{-eu}}{%
        \renewcommand{\doclicense@imagemodifier}{}
      }{}
    }

    \ifcsdef{doclicense@lang@lic@\doclicense@type%
      @\doclicense@modifier @\doclicense@versionUsed}{}{%

      \PackageError{doclicense}{License long name not defined}{%
        Please check the manual of doclicense
        to see what you can do about it.%
      }%
    }

    \setboolean{doclicense@licenseKnown}{true}
  }{}%% )))
  \ifthenelse{\not\boolean{doclicense@licenseKnown}}{%
    \PackageError{doclicense}{License unknown}{%
      Please check the manual of doclicense
      to see what you can do about it.%
    }%
  }{}%
}
%% )))

\doclicense@set%
%    \end{macrocode}
% That's it.
%    \begin{macrocode}
\endinput
%    \end{macrocode}
%
% \iffalse
%</package>
% \fi
%
% \Finale
\endinput