hgbbib.sty

%% File encoding: ASCII
%% --------------- Bibliography setup ---------------------------------------
\ProvidesPackage{hgbbib}

\usepackage{csquotes}	% recommended for biblatex
%\usepackage[babel,german=quotes]{csquotes}	% utf8-change ??

%utf8-change
%Note: biblatex with bibtex backend is frozen at version 1.7.
\usepackage[style=authoryear,backend=biber,bibencoding=auto]{biblatex}%[2013/01/10] %utf8-change

\ExecuteBibliographyOptions{bibwarn=true,sortcites=true,defernumbers=true,isbn=false,doi=false,sorting=none,backref=false}

%% titles of reference section + 3 categories of references:
\newcommand{\@bibtitle}{Quellenverzeichnis}
\newcommand{\@bibtitleLiteratur}{Literatur}
\newcommand{\@bibtitleAvmedia}{Filme und audiovisuelle Medien}
\newcommand{\@bibtitleOnline}{Online-Quellen}	

\ifthenelse{\equal{\hgb@MainLanguage}{english}}{%
	\renewcommand{\@bibtitle}{References}
	\renewcommand{\@bibtitleLiteratur}{Literature}
	\renewcommand{\@bibtitleAvmedia}{Films and audio-visual media}
	\renewcommand{\@bibtitleOnline}{Online sources}	
}{}

\defbibfilter{literature}{
	not ( type=movie or type=video or type=music or type=audio or 
				type=online or type=electronic or type=www or type=software )}

\defbibfilter{avmedia}{%
	( type=movie or type=video or type=music or type=audio or type=software )}

\defbibfilter{online}{%
	( type=online or type=electronic or type=www )}


\defbibheading{noheader}[]{}	% 'none' should be defined but isn't

% utf8-change (deactivated):
% German format in biblatex is flawed: it adds wrong spaces and prohibits
% line breaking within date strings. Corrected by Wilbur as follows.
% Taken from german.lbx: replaced \thinspace by breaking zero space \hskip0pt 
%\DefineBibliographyExtras{ngerman}{% 
  %\def\mkbibdatelong#1#2#3{%
    %\iffieldundef{#3}
      %{\hskip0pt}
      %{\mkbibordinal{\thefield{#3}}%
       %\iffieldundef{#2}{}{\space}}%	%was: \nobreakspace
    %\iffieldundef{#2}
      %{\hskip0pt}
      %{\mkbibmonth{\thefield{#2}}%
       %\iffieldundef{#1}{\hskip0pt}{\space}}%
    %\stripzeros{\thefield{#1}}}%
%%
  %\def\mkbibdateshort#1#2#3{%
    %\iffieldundef{#3}
      %{\hskip0pt}
      %{\mkdatezeros{\thefield{#3}}\adddot
       %\iffieldundef{#2}{}{\hskip0pt}}%
    %\iffieldundef{#2}
      %{\hskip0pt}
      %{\mkdatezeros{\thefield{#2}}%
       %\iffieldundef{#1}
	 %{\hskip0pt}
	 %{\iffieldundef{#3}{/}{\adddot\hskip0pt}}}%
    %\mkdatezeros{\thefield{#1}}}%
%}

% utf8-change (deactivated):
% Similar problem with badly braking date strings in english.
% Taken from english.lbx: added breaking zero space \hskip0pt to /
%\DefineBibliographyExtras{english}{% 
  %\def\mkbibdatelong#1#2#3{%
    %\iffieldundef{#2}
      %{}
      %{\mkbibmonth{\thefield{#2}}%
       %\iffieldundef{#3}
         %{\iffieldundef{#1}{}{\space}}
	 %{\space}}%	%was: \nobreakspace
    %\iffieldundef{#3}
      %{}
      %{\stripzeros{\thefield{#3}}%
       %\iffieldundef{#1}{}{,\space}}%
    %\stripzeros{\thefield{#1}}}%
%%
  %\def\mkbibdateshort#1#2#3{%
    %\iffieldundef{#2}
      %{}
      %{\mkdatezeros{\thefield{#2}}%
       %\iffieldundef{#3}
         %{\iffieldundef{#1}{}{/{\hskip0pt}}}
	 %{/{\hskip0pt}}}%
    %\iffieldundef{#3}
      %{}
      %{\mkdatezeros{\thefield{#3}}%
       %\iffieldundef{#1}{}{/{\hskip0pt}}}%
    %\mkdatezeros{\thefield{#1}}}%
%}


%This is only a wrapper to \addbibresource to allow the use
%of the classic bibtex-workflow in the future.
\newcommand{\AddBibFile}[1]{
	\addbibresource{#1}%
}

%See http://www.jr-x.de/publikationen/latex/tipps/zeilenumbruch.html
\newenvironment{bibhyphenation}% 
	{\hyphenpenalty=2%		(default 50)
	 \tolerance=9999%			(default 200)
	 \exhyphenpenalty=2%	(default 50)
	 \linepenalty=1%			(default 10)
	 \setlength{\emergencystretch}{3em}}%
	{}

% Currently the only public macro:
% \MakeBibliography ... creates a reference section split subsections (default)
% \MakeBibliography[nosplit] ... creates a one-piece reference section
\newcommand{\MakeBibliography}[1][]{
	% opt. arg (#1): optional argument "nosplit" to get a 1-piece bibliography
	%\clearpage
	\ifthenelse{\equal{#1}{nosplit}}%
		{% create a single bibliography with all entries:
			%\printbibheading[heading=bibintoc,title={#2}]
			\printbibheading[heading=bibintoc,title={\@bibtitle}]
			\begin{bibhyphenation}	
			\printbibliography[heading=noheader]
			\end{bibhyphenation}
		}
		{% split the bibliography using the predefined categories:
			%\printbibheading[heading=bibintoc,title={#2}]
			\printbibheading[heading=bibintoc,title={\@bibtitle}]
			\begin{bibhyphenation}
			\printbibliography[filter=literature,heading=subbibintoc,title={\@bibtitleLiteratur}]
			\printbibliography[filter=avmedia,heading=subbibintoc,title={\@bibtitleAvmedia}]
			\printbibliography[filter=online,heading=subbibintoc,title={\@bibtitleOnline}]
			\end{bibhyphenation}
		}%
}

% Suppress unusual "In:" within journal article references. 
% see http://tex.stackexchange.com/questions/10682/suppress-in-biblatex
\renewbibmacro{in:}{%
	\ifentrytype{article}{}{%
	\printtext{\bibstring{in}\intitlepunct}}}


% To suppress warnings related to missing biblatex "drivers":
\DeclareBibliographyAlias{video}{misc}
\DeclareBibliographyAlias{movie}{misc}
\DeclareBibliographyAlias{audio}{misc}
\DeclareBibliographyAlias{software}{misc}