baarticle.bbx

% Blibliography style implementing the BA Dresden Styleguide
\ProvidesFile{baarticle.bbx}[2021/09/24 v1.0.0 BA Dresden bibliography style]
% The style is based on authoryear-ibid
\RequireBibliographyStyle{authoryear-ibid}
% use the BA localization
\DeclareLanguageMapping{ngerman}{ngerman-ba}

% put family name for the first name
\DeclareNameAlias{labelname}{family-given}
\DeclareNameAlias{sortname}{family-given}
\DeclareNameAlias{publisher}{family-given}
% formatting for certain fields
\DeclareFieldFormat{url}{in:\space\linebreak[0]\url{#1}}
\DeclareFieldFormat{urldate}{\newunitpunct\space\linebreak[0](#1)}
\DeclareFieldFormat{year}{#1}
\DeclareFieldFormat{edition}{#1 Auflage}
\DeclareFieldFormat[article]{citetitle}{#1}
\DeclareFieldFormat[article]{title}{\textit{#1}}
\DeclareFieldFormat[incollection]{title}{\textit{#1}}
\DeclareFieldFormat[incollection]{citetitle}{#1}
\DeclareFieldFormat[unpublished]{citetitle}{#1}
\DeclareFieldFormat[unpublished]{title}{\textit{#1}}

% allow linebreaks in long urls
\setcounter{biburllcpenalty}{7000}
\setcounter{biburlucpenalty}{8000}

% Sourcemapping, which copies the content of publisher to bapublisher
\DeclareStyleSourcemap{
    \maps[datatype=bibtex]{
        \map{
            \pertype{collection}
            \step[fieldsource=publisher]
            \step[fieldset=bapublisher, origfieldval]
        }
    }
}

% change certain delimiters
\renewcommand*{\newunitpunct}{\addcomma\space}
\renewcommand*{\labelnamepunct}{\addcolon\space}
\renewcommand*{\subtitlepunct}{\addperiod\space}
\renewcommand*{\multinamedelim}{/}
\renewcommand*{\finalnamedelim}{/}

% set length regarding formatting of the bibliography
\setlength{\bibhang}{0pt}
\setlength{\bibitemsep}{1.5\itemsep}

% check if setspace is loaded
\@ifpackageloaded{setspace}{\newcommand{\@bibsetspace}{yes}}{}

\InitializeBibliographyStyle{%
    \ifdefvoid{\@bibsetspace}{
        \linespread{1.0}
    }{
        \singlespacing
    }
}

% fix messed up incollection ordering
\DeclareBibliographyDriver{incollection}{%
    \usebibmacro{bibindex}%
    \usebibmacro{begentry}%
    \usebibmacro{author/translator+others}%
    \setunit{\printdelim{nametitledelim}}\newblock
    \usebibmacro{title}%
    \newunit
    \printlist{language}%
    \newunit\newblock
    \usebibmacro{byauthor}%
    \newunit\newblock
    \usebibmacro{in:}%
    \iflistundef{publisher}
    {\setunit*{\addcomma\space}}
    {\setunit*{\addcolon\space}}%iflistundef
    \printnames{bapublisher}\space\bibopenparen Hrsg.\bibcloseparen%
    \setunit*{\addcomma\space}%
    \usebibmacro{maintitle+booktitle}%
    \newunit\newblock
    \usebibmacro{byeditor+others}%
    \newunit\newblock
    \printfield{edition}%
    \newunit
    \iffieldundef{maintitle}
    {\printfield{volume}%
    \printfield{part}}
    {}%iffieldundef
    \newunit
    \printfield{volumes}%
    \newunit\newblock
    \usebibmacro{series+number}%
    \newunit\newblock
    \printfield{note}%
    \newunit\newblock
    \printlist{location}%
    \newunit\newblock
    \usebibmacro{chapter+pages}%
    \newunit\newblock
    \iftoggle{bbx:isbn}
    {\printfield{isbn}}
    {}%
    \newunit\newblock
    \usebibmacro{doi+eprint+url}%
    \newunit\newblock
    \usebibmacro{addendum+pubstate}%
    \setunit{\bibpagerefpunct}\newblock
    \usebibmacro{pageref}%
    \newunit\newblock
    \iftoggle{bbx:related}
    {\usebibmacro{related:init}%
    \usebibmacro{related}}
    {}%
    \usebibmacro{finentry}}

% add internal document notice to unpublished
% (loosly copied from the standard.bbx definition of book)
\DeclareBibliographyDriver{unpublished}{%
    \usebibmacro{bibindex}%
    \usebibmacro{begentry}%
    \usebibmacro{author/editor+others/translator+others}%
    \setunit{\printdelim{nametitledelim}}\newblock
    \usebibmacro{maintitle+title}%
    \newunit
    \printlist{language}%
    \newunit\newblock
    \usebibmacro{byauthor}%
    \newunit\newblock
    \usebibmacro{byeditor+others}%
    \newunit\newblock
    \printfield{edition}%
    \newunit
    \iffieldundef{maintitle}
    {\printfield{volume}%
    \printfield{part}}
    {}%
    \newunit
    \printfield{volumes}%
    \newunit\newblock
    \usebibmacro{series+number}%
    \newunit\newblock
    \printfield{note}%
    \newunit\newblock
    \usebibmacro{publisher+location+date}%
    \newunit\newblock
    \usebibmacro{chapter+pages}%
    \newunit
    \printfield{pagetotal}%
    \newunit\newblock
    \iftoggle{bbx:isbn}
    {\printfield{isbn}}
    {}%
    \newunit\newblock
    \usebibmacro{doi+eprint+url}%
    \newunit\newblock
    \usebibmacro{addendum+pubstate}, internes Dokument%
    \setunit{\bibpagerefpunct}\newblock
    \usebibmacro{pageref}%
    \newunit\newblock
    \iftoggle{bbx:related}
    {\usebibmacro{related:init}%
    \usebibmacro{related}}
    {}%
    \usebibmacro{finentry}}

% fix publisher formatting
\DeclareNameFormat{bapublisher}{%
    \namepartfamily\addcomma\space\namepartgiveni%
    \ifthenelse{\value{listcount}<\value{liststop}}%
    {\slash}%
    {}%
}