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authorKarl Berry <karl@freefriends.org>2021-03-16 22:16:06 +0000
committerKarl Berry <karl@freefriends.org>2021-03-16 22:16:06 +0000
commit82efe2bcfe309c2aef7b6d72ab09aaf39ee38938 (patch)
treeb35ca2cd53fdb3bd807d2c8ba1c8e88b5a712100 /Master/texmf-dist/tex/latex/biblatex-license
parent8e4226d4701266f1fc4c642479164fd728d2167b (diff)
biblatex-license (16mar21) (branch)
git-svn-id: svn://tug.org/texlive/branches/branch2020.0@58452 c570f23f-e606-0410-a88d-b1316a301751
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+% This package serves the purpose of providing a way
+% for relating entries in the bibliography to the license
+% under which those entries where licensed. For this end
+% it uses the build in biblatex 'related' mechanism to
+% link works to their license. It therefor defines a new
+% 'relatedtype', which is 'license'.
+%
+% Anselm Wagner (a.wagner1@uni-wuppertal.de)
+%
+% This material is subject to the LaTeX Project Public License 1.3c.
+% https://ctan.org/license/lppl1.3
+%
+\NeedsTeXFormat{LaTeX2e}[1994/06/01]
+\ProvidesPackage{biblatex-license}
+ [2020/01/30 v1.0 biblatex-license]
+\RequirePackage{biblatex}
+\RequirePackage{kvoptions}
+\SetupKeyvalOptions{
+ family=biblicense,
+ prefix=biblicense@}
+\DeclareStringOption[short]{license} % how should the licenses be printed in
+ % bib? Options: short, full, off
+\DeclareBoolOption[false]{url} % should the url of the license be printed
+ % as well?
+\DeclareBoolOption[true]{link} % should the lincense be a weblink?
+\DeclareStringOption[default]{introtext} % alternative introtext for licenses
+ % in the bibliography. Arbitrary text.
+\ProcessKeyvalOptions*
+
+\ifbiblicense@link % link=true
+ \RequirePackage{hyperref}
+\fi
+
+% set related=true otherwise this package has no functionality
+\ExecuteBibliographyOptions{related=true}
+
+% Common definitions:
+\NewBibliographyString{licensedunder}
+\DefineBibliographyStrings{english}{%
+ licensedunder = {licensed under},
+}
+\DefineBibliographyStrings{german}{%
+ licensedunder = {Lizenziert unter},
+}
+
+\newbibmacro*{shortIfShorttitleExists}{%
+ \iffieldundef{shorttitle}
+ {\printfield{title}}
+ {\printfield{shorttitle}}
+}
+
+\newbibmacro*{licenseAsLink}{\printfield[licenseAsLink]{url}}
+
+\DeclareFieldFormat{licenseAsLink}{\href{#1}{\usebibmacro{shortIfShorttitleExists}\unspace}}
+
+% test if alternative introtext was entered and change accordingly
+\ifnum\pdf@strcmp{\biblicense@introtext}{default}=0%
+ \newcommand{\biblicenseintrotext}{\biblstring{licensedunder}}
+\else
+ \newcommand{\biblicenseintrotext}{\biblicense@introtext}
+\fi
+
+
+\ifnum\pdf@strcmp{\biblicense@license}{off}=0% Package has no functionality.
+ \newbibmacro*{related:license}[1]{}
+\else % license is to be printed
+ \ifnum\pdf@strcmp{\biblicense@license}{short}=0% short license to be printed
+ \ifbiblicense@url % url=true
+ \newbibmacro*{related:license}[1]{%
+ \entrydata{#1}{%
+ \printtext{\biblicenseintrotext}%
+ \setunit{\addspace}%
+ \usebibmacro{shortIfShorttitleExists}%
+ \iffieldundef{url}
+ {}
+ {\setunit{\addspace}\usebibmacro{url}}}%
+ }
+ \else % url=false
+ \ifbiblicense@link % link=true
+ \newbibmacro*{related:license}[1]{%
+ \entrydata{#1}{%
+ \printtext{\biblicenseintrotext}%
+ \setunit{\addspace}%
+ \iffieldundef{url}
+ {\usebibmacro{shortIfShorttitleExists}}
+ {\usebibmacro{licenseAsLink}}%
+ }
+ }
+ \else % link=false
+ \newbibmacro*{related:license}[1]{%
+ \entrydata{#1}{%
+ \printtext{\biblicenseintrotext}%
+ \setunit{\addspace}%
+ {\usebibmacro{shortIfShorttitleExists}}%
+ }
+ }
+ \fi % link = ?
+ \fi % url = ?
+ \else % license=full -- full license to be printed
+ \newbibmacro*{related:license}[1]{%
+ \entrydata{#1}{%
+ \printtext{\biblicenseintrotext}%
+ \setunit{\addspace}%
+ \usedriver
+ {\ifnameundef{savedauthor}
+ {\ifnameundef{savededitor}
+ {}
+ {\ifnamesequal{editor}{savededitor}
+ {\clearname{editor}}
+ {}}}
+ {\ifnamesequal{author}{savedauthor}
+ {\clearname{author}}
+ {}}%
+ \renewbibmacro*{related:init}{}%
+ \DeclareNameAlias{sortname}{default}%
+ \ifbibmacroundef{date+extradate}
+ {}
+ {\renewbibmacro*{date+extradate}{}%
+ \renewbibmacro*{date}{\printdate}}%
+ \renewbibmacro*{pageref}{}}
+ {\thefield{entrytype}}
+ }
+ }
+ \fi
+\fi