%% ---------------------------------------------------------------
%% biblatex-unified --- A biblatex implementation of the Unified Style
%%   Sheet for Linguistics Journals. This is the house style of the
%%   journal "Semantics & Pragmatics" (A journal of the Linguistic
%%   Society of America).
%% Maintained by Kai von Fintel (fintel@mit.edu)
%% Released under the LaTeX Project Public License v1.3c or later
%% See http://www.latex-project.org/lppl.txt
%% ---------------------------------------------------------------
%%

\ProvidesFile{unified.cbx}[2022/11/08 v1.20 biblatex citation style]

\RequireCitationStyle{authoryear-comp}

\ExecuteBibliographyOptions{%
  labeldateparts,%
  uniquename=minfull,%
  uniquelist=minyear,%
  autocite=inline,%
  sortcites=false}

% disabled sortcites option, since it was sorting by name, instead of
% year, and we often want to keep citations in the order chosen by the
% author

% Setting the delimiters the way we want them:

\renewcommand*{\nameyeardelim}{\addspace}
\renewcommand*{\postnotedelim}{\addcolon\space}
\renewcommand*{\multicitedelim}{\addcomma\space}

% Apart from setting some options, the main change from
% authoryear-comp is that we extend what parts of a citation label are
% hyperlinked (to match what natbib did in the old days). The solution
% used to be a very ugly homegrown rewrite of the entirety of
% `authoryear-comp.cbx`, which meant that we were left behind when
% that style was updated. The new solution, still a hack, is to apply
% patches to the base style. These patches were first proposed in
% https://tex.stackexchange.com/a/27615/70432.

% It would be nice if biblatex simply offered more expansive
% hyperlinks as an option and then we wouldn't have to patch things.
% But this seems not to be in the cards:
% https://github.com/plk/biblatex/issues/428

\usepackage{xpatch}

% Patches for biblatex > v3.8 2017-11-04, when labeldate+extradate
% were introduced

% Combine label and labelyear links
\xpatchbibmacro{cite}
  {\usebibmacro{cite:label}%
   \setunit{\printdelim{nonameyeardelim}}%
   \usebibmacro{cite:labeldate+extradate}}
  {\printtext[bibhyperref]{%
     \DeclareFieldAlias{bibhyperref}{default}%
     \usebibmacro{cite:label}%
     \setunit{\printdelim{nonameyeardelim}}%
     \usebibmacro{cite:labeldate+extradate}}}{}{}

% Include labelname in labelyear link
\xpatchbibmacro{cite}
  {\printnames{labelname}%
   \setunit{\printdelim{nameyeardelim}}%
   \usebibmacro{cite:labeldate+extradate}}
  {\printtext[bibhyperref]{%
     \DeclareFieldAlias{bibhyperref}{default}%
     \printnames{labelname}%
     \setunit{\printdelim{nameyeardelim}}%
     \usebibmacro{cite:labeldate+extradate}}}{}{}

% Patches for biblatex 3.7

% Combine label and labelyear links
\xpatchbibmacro{cite}
 {\usebibmacro{cite:label}%
   \setunit{\printdelim{nonameyeardelim}}%
   \usebibmacro{cite:labelyear+extrayear}}
 {\printtext[bibhyperref]{%
     \DeclareFieldAlias{bibhyperref}{default}%
     \usebibmacro{cite:label}%
     \setunit{\addspace}%
     \usebibmacro{cite:labelyear+extrayear}}}{}{}

% Include labelname in labelyear link
\xpatchbibmacro{cite}
 {\printnames{labelname}%
   \setunit{\printdelim{nameyeardelim}}%
   \usebibmacro{cite:labelyear+extrayear}}
 {\printtext[bibhyperref]{%
     \DeclareFieldAlias{bibhyperref}{default}%
     \printnames{labelname}%
     \setunit{\nameyeardelim}%
     \usebibmacro{cite:labelyear+extrayear}}}{}{} 

% Patches for biblatex before 3.7

% Combine label and labelyear links
\xpatchbibmacro{cite}
  {\usebibmacro{cite:label}%
   \setunit{\addspace}%
   \usebibmacro{cite:labelyear+extrayear}}
  {\printtext[bibhyperref]{%
     \DeclareFieldAlias{bibhyperref}{default}%
     \usebibmacro{cite:label}%
     \setunit{\addspace}%
     \usebibmacro{cite:labelyear+extrayear}}}{}{}

% Include labelname in labelyear link
\xpatchbibmacro{cite}
  {\printnames{labelname}%
   \setunit{\nameyeardelim}%
   \usebibmacro{cite:labelyear+extrayear}}
  {\printtext[bibhyperref]{%
     \DeclareFieldAlias{bibhyperref}{default}%
     \printnames{labelname}%
     \setunit{\nameyeardelim}%
     \usebibmacro{cite:labelyear+extrayear}}}{}{} 

% Access hyperref's citation link start/end commands
\protected\def\blx@imc@biblinkstart{%
  \@ifnextchar[%]
    {\blx@biblinkstart}
    {\blx@biblinkstart[\abx@field@entrykey]}}
\def\blx@biblinkstart[#1]{%
  \blx@sfsave\hyper@natlinkstart{\the\c@refsection @#1}\blx@sfrest}
\protected\def\blx@imc@biblinkend{%
  \blx@sfsave\hyper@natlinkend\blx@sfrest}
\blx@regimcs{\biblinkstart \biblinkend}

\newbool{cbx:link}

% Include parentheses around labelyear in \textcite only in
% single citations without pre- and postnotes
\def\iflinkparens{%
  \ifboolexpr{ test {\ifnumequal{\value{multicitetotal}}{0}} and
               test {\ifnumequal{\value{citetotal}}{1}} and
               test {\iffieldundef{prenote}} and
               test {\iffieldundef{postnote}} }}

\xpatchbibmacro{textcite}
  {\printnames{labelname}}
  {\iflinkparens
     {\DeclareFieldAlias{bibhyperref}{default}%
      \global\booltrue{cbx:link}\biblinkstart%
      \printnames{labelname}}
     {\printtext[bibhyperref]{\printnames{labelname}}}}{}{}

\xpatchbibmacro{textcite}
  {\usebibmacro{cite:label}}
  {\iflinkparens
     {\DeclareFieldAlias{bibhyperref}{default}%
      \global\booltrue{cbx:link}\biblinkstart%
      \usebibmacro{cite:label}}
     {\usebibmacro{cite:label}}}{}{}

\xpretobibmacro{textcite:postnote}
  {\ifbool{cbx:link}% patch 2.7+
     {\ifbool{cbx:parens}
        {\bibcloseparen\global\boolfalse{cbx:parens}}
        {}%
         \biblinkend\global\boolfalse{cbx:link}}
        {}}
  {}
  {\xpatchbibmacro{textcite}% patch earlier releases
     {\setunit{%
        \ifbool{cbx:parens}
          {\bibcloseparen\global\boolfalse{cbx:parens}}
          {}%
        \multicitedelim}}
     {\ifbool{cbx:link}
        {\ifbool{cbx:parens}
           {\bibcloseparen\global\boolfalse{cbx:parens}}
           {}%
         \biblinkend\global\boolfalse{cbx:link}}
        {}%
      \setunit{%
        \ifbool{cbx:parens}
          {\bibcloseparen\global\boolfalse{cbx:parens}}
          {}%
        \multicitedelim}}
    {}{}}

% Making the old code in \posscite work with new biblatex
\@ifpackagelater{biblatex}{2016/12/06}%
{\letbibmacro{cite:labelyear+extrayear}{cite:labeldate+extradate}}
{}

% What follows is ugly and meh. These cite commands have been part of
% S&P's author convenience macros since the beginning. We shouldn't
% advertise them anymore, but here they are. We should add warnings
% that people shouldn't use them, because they are deprecated and will
% go away at some point.

\newcommand{\pgcitep}[2]{(\cite{#1}:~#2)}
\newcommand{\pgcitealt}[2]{\cite{#1}:~#2}
\newcommand{\pgcitet}[2]{\citeauthor{#1} (\citeyear{#1}:~#2)}
\newcommand{\pgposscitet}[2]{\citeauthor{#1}'s (\citeyear{#1}:~#2)}
\newcommand{\seccitealt}[2]{\cite{#1}:~$\S$#2}
\newcommand{\seccitep}[2]{(\cite{#1}:~$\S$#2)}
\newcommand{\seccitet}[2]{\citeauthor{#1} (\citeyear{#1}:~$\S$#2)}
\newcommand{\secposscitet}[2]{\citeauthor{#1}'s (\citeyear{#1}:~$\S$#2)}

\newbibmacro*{posscite}{% Based on textcite
  \iffieldequals{namehash}{\cbx@lasthash}
    {\iffieldundef{shorthand}
       {\usebibmacro{labelyearrepeat}}
       {\setunit{\compcitedelim}%
        \usebibmacro{cite:shorthand}%
        \global\undef\cbx@lastyear}}
    {\ifnameundef{labelname}
       {\printtext[bibhyperref]{% Include labelname in hyperlink
          \DeclareFieldAlias{bibhyperref}{default}% Prevent nested hyperlinks
          \iffieldundef{shorthand}
            {\usebibmacro{cite:label}%
             \setunit{%
               \global\booltrue{cbx:parens}%
               \addspace\bibopenparen}%
             \ifnumequal{\value{citecount}}{1}
               {\usebibmacro{prenote}}
               {}%
             \usebibmacro{cite:labelyear+extrayear}}
            {\usebibmacro{cite:shorthand}}%
          \ifthenelse{\iffieldundef{postnote}\AND
                      \(\value{multicitetotal}=0\AND\value{citetotal}=1\)}
            {\bibcloseparen% Include closing parenthesis in hyperlink
             \global\boolfalse{cbx:parens}}
            {}}}
       {\printtext[bibhyperref]{% Include labelname in hyperlink
          \DeclareFieldAlias{bibhyperref}{default}% Prevent nested hyperlinks
          \printnames{labelname}'s%
          \setunit{%
            \global\booltrue{cbx:parens}%
            \addspace\bibopenparen}%
          \ifnumequal{\value{citecount}}{1}
            {\usebibmacro{prenote}}
            {}%
          \iffieldundef{shorthand}
            {\iffieldundef{labelyear}
               {\usebibmacro{cite:label}}
               {\usebibmacro{cite:labelyear+extrayear}}%
             \savefield{labelyear}{\cbx@lastyear}}
            {\usebibmacro{cite:shorthand}%
             \global\undef\cbx@lastyear}%
          \ifthenelse{\iffieldundef{postnote}\AND
                      \(\value{multicitetotal}=0\AND\value{citetotal}=1\)}
            {\bibcloseparen% Include closing parenthesis in hyperlink
             \global\boolfalse{cbx:parens}}
            {}}%
          \savefield{namehash}{\cbx@lasthash}}}%
  \setunit{%
    \ifbool{cbx:parens}
      {\bibcloseparen\global\boolfalse{cbx:parens}}
      {}%
    \multicitedelim}}
\DeclareCiteCommand{\posscitet}
  {\usebibmacro{cite:init}}
  {\usebibmacro{citeindex}%
   \usebibmacro{posscite}}
  {}
  {\usebibmacro{textcite:postnote}}

\DeclareCiteCommand{\posscitealt}
  {\boolfalse{citetracker}%
   \boolfalse{pagetracker}}
  {\printtext[bibhyperref]{\printnames{labelname}'s \iffieldundef{year}{\printfield{labelyear}}{\printfield{year}}\printfield{extradate}}}
  {}
  {}

\DeclareCiteCommand{\possciteauthor}
  {\boolfalse{citetracker}%
   \boolfalse{pagetracker}}
  {\printtext[bibhyperref]{\printnames{labelname}'s}}
  {}
  {}

  
\endinput