\ProvidesFile{authoryear-square.bbx}
%% [\abx@bbxid]

\RequirePackage{xpatch}

\RequireBibliographyStyle{standard}
\ExecuteBibliographyOptions{sorting=anyt,pagetracker,labelyear}
\ExecuteBibliographyOptions{firstinits,useprefix,maxbibnames=999,maxcitenames=2,block=space}

\defbibenvironment{bibliography}
  {\list
     {}
     {\setlength{\leftmargin}{\bibhang}%
      \setlength{\itemindent}{-\leftmargin}%
      \setlength{\itemsep}{\bibitemsep}%
      \setlength{\parsep}{\bibparsep}}}
  {\endlist}
  {\item}

\DeclareFieldFormat{shorthandwidth}{#1}
\defbibenvironment{shorthands}
  {\list
     {\printfield[shorthandwidth]{shorthand}}
     {\setlength{\labelwidth}{\shorthandwidth}%
      \setlength{\leftmargin}{\labelwidth}%
      \setlength{\labelsep}{\biblabelsep}%
      \addtolength{\leftmargin}{\labelsep}%
      \setlength{\itemsep}{\bibitemsep}%
      \setlength{\parsep}{\bibparsep}%
      \renewcommand*{\makelabel}[1]{##1\hss}}}
  {\endlist}
  {\item}

\InitializeBibliographyStyle{}

%% Changes to standard style
\renewcommand*{\nameyeardelim}{\addspace}
\renewcommand*{\bibpagerefpunct}{\iflistundef{pageref}{\addspace}{\addperiod\addspace}}
\renewcommand*{\finentrypunct}{\iflistundef{pageref}{\addperiod}{}}%
\renewbibmacro*{in:}{%
  \ifentrytype{article}{}{%
  \printtext{\bibstring{in}\intitlepunct}}}
\xpatchbibmacro{pageref:comp}{\multilistdelim}%
  {\ifboolexpr{test {\ifnumless{\value{listcount}}{\value{liststop}}}or test \ifmoreitems}{\multilistdelim}{\finallistdelim}}{}{}
\DeclareFieldFormat
  [article,inbook,incollection,inproceedings,patent,thesis,unpublished]
  {title}{#1\isdot}

%% Add the citekey
\xpatchbibdriver{misc}{\setunit{\labelnamepunct}}{\setunit*{\labelnamepunct}}{}{}
\renewbibmacro*{begentry}{%
  \printtext[brackets]{%
    \begingroup%
      \defcounter{maxnames}{\blx@maxcitenames}%
      \iffieldundef{shorthand}%
        {\ifthenelse{\ifnameundef{labelname}\OR\iffieldundef{labelyear}}%
           {\iffieldundef{label}{\printfield[citetitle]{labeltitle}}{\printfield{label}}%
            %\setunit{\nameyeardelim}%
            %\iffieldundef{labelyear}{}{\printfield{labelyear}\printfield{extrayear}}%
           }%
           {\printnames{labelname}%
            \setunit{\nameyeardelim}%
            \iffieldundef{labelyear}{}{\printfield{labelyear}\printfield{extrayear}}}}%
        {\printfield{shorthand}}%
    \endgroup%
  }%
  \printtext{}\setunit{\addspace}\newblock% \printtext{\quad}or \addspace
}

\endinput