%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%      File: langscibook.cls
%%    Author: Language Science Press (http://langsci-press.org)
%%      Date: 2019-03-06 13:12 UTC
%%   Purpose: An implementation of the Unified Style Sheet for Linguistics bibliographies (https://www.linguisticsociety.org/resource/unified-style-sheet). 
%%  This work is based on the styles provided by Semantics \& Pragmatics 
%%  Language: LaTeX
%%  Copyright 2017- Language Science Press
%%  Licence: This work may be distributed and/or modified under the
%%  conditions of the LaTeX Project Public License, either version 1.3
%%  of this license or (at your option) any later version.
%%  The latest version of this license is in
%%    http://www.latex-project.org/lppl.txt
%%  and version 1.3 or later is part of all distributions of LaTeX
%%  version 2005/12/01 or later.
%%% This work has the LPPL maintenance status `maintained'.
%%% The Current Maintainer of this work is Sebastian Nordhoff.
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

\ProvidesFile{langsci-unified.cbx}

% For backward compatibility: choose labeldate or labeldateparts depending on the biblatex version
\@ifpackagelater{biblatex}{2016/09/09}
{%
  \ExecuteBibliographyOptions{labeldateparts} % as of biblatex 3.5 (2016/09/10)
}
{%
  \ExecuteBibliographyOptions{labeldate}
}%

\ExecuteBibliographyOptions{uniquename=minfull,uniquelist=minyear,autocite=inline}

% 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
\newbool{cbx:parens}

\newbibmacro*{cite:init}{%
  \ifnumless{\value{multicitecount}}{2}
    {\global\boolfalse{cbx:parens}%
     \global\undef\cbx@lasthash
     \global\undef\cbx@lastyear}
    {\iffieldundef{prenote}
       {}
       {\global\undef\cbx@lasthash
        \global\undef\cbx@lastyear}}}

\newbibmacro*{cite:reinit}{%
  \global\undef\cbx@lasthash
  \global\undef\cbx@lastyear}

\newbibmacro*{labelyearrepeat}{%
  \ifthenelse{\iffieldequals{labelyear}{\cbx@lastyear}\AND
              \(\value{multicitecount}=0\OR\iffieldundef{postnote}\)}
    {\setunit{\addcomma}%
     \usebibmacro{cite:extradate}}
    {\setunit{\compcitedelim}%
     \usebibmacro{cite:labelyear+extradate}%
     \savefield{labelyear}{\cbx@lastyear}}}

\newbibmacro*{cite}{% Based on cite bib macro from authoryear-comp.cbx
  \iffieldundef{shorthand}
    {\ifthenelse{\ifnameundef{labelname}\OR\iffieldundef{labelyear}}
       {\printtext[bibhyperref]{% Include labelname in hyperlink
          \DeclareFieldAlias{bibhyperref}{default}% Prevent nested hyperlinks
          \usebibmacro{cite:label}%
          \setunit{\addspace}%
          \usebibmacro{cite:labelyear+extradate}}%
          \usebibmacro{cite:reinit}}
       {\iffieldequals{namehash}{\cbx@lasthash}
          {\usebibmacro{labelyearrepeat}}
          {\printtext[bibhyperref]{% Include labelname in hyperlink
             \DeclareFieldAlias{bibhyperref}{default}% Prevent nested hyperlinks
             \printnames{labelname}%
             \setunit{\nameyeardelim}%
             \usebibmacro{cite:labelyear+extradate}}%
             \savefield{namehash}{\cbx@lasthash}%
             \savefield{labelyear}{\cbx@lastyear}}}}
    {\usebibmacro{cite:shorthand}%
     \usebibmacro{cite:reinit}}%
  \setunit{\multicitedelim}}

\newbibmacro*{citeyear}{%
  \iffieldundef{shorthand}
    {\iffieldundef{labelyear}
       {\usebibmacro{cite:label}%
        \usebibmacro{cite:reinit}}
       {\iffieldequals{namehash}{\cbx@lasthash}
          {\usebibmacro{labelyearrepeat}}
          {\usebibmacro{cite:labelyear+extradate}%
           \savefield{namehash}{\cbx@lasthash}%
           \savefield{labelyear}{\cbx@lastyear}}}}
    {\usebibmacro{cite:shorthand}%
     \usebibmacro{cite:reinit}}%
  \setunit{\multicitedelim}}

\newbibmacro*{textcite}{% Based on textcite bib macro from authoryear-comp.cbx
  \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+extradate}}
            {\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}%
          \setunit{%
            \global\booltrue{cbx:parens}%
            \addspace\bibopenparen}%
          \ifnumequal{\value{citecount}}{1}
            {\usebibmacro{prenote}}
            {}%
          \iffieldundef{shorthand}
            {\iffieldundef{labelyear}
               {\usebibmacro{cite:label}}
               {\usebibmacro{cite:labelyear+extradate}}%
             \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}}

\newbibmacro*{posscite}{% Based on textcite bib macro above
  \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+extradate}}
            {\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+extradate}}%
             \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}}

\newbibmacro*{cite:shorthand}{%
  \printtext[bibhyperref]{\printfield{shorthand}}}

\newbibmacro*{cite:label}{%
  \iffieldundef{label}
    {\printtext[bibhyperref]{\printfield[citetitle]{labeltitle}}}
    {\printtext[bibhyperref]{\printfield{label}}}}

\newbibmacro*{cite:labelyear+extradate}{%
  \iffieldundef{labelyear}
    {}
    {\printtext[bibhyperref]{\printlabeldateextra}}%
     \usebibmacro{cite:thisvolume}%
    }

\newbibmacro*{cite:extradate}{%
  \iffieldundef{extradate}
    {}
    {\printtext[bibhyperref]{\printfield{extradate}}}%
     \usebibmacro{cite:thisvolume}%
  }

\newbibmacro*{cite:thisvolume}{%
  \ifkeyword{LSPWithinVolume}
    {\addspace\printtext[bibhyperref]{[this volume]}}
    {}%
}

\newbibmacro*{textcite:postnote}{%
  \usebibmacro{postnote}%
  \ifthenelse{\value{multicitecount}=\value{multicitetotal}}
    {\setunit{}%
     \printtext{%
       \ifbool{cbx:parens}
         {\bibcloseparen\global\boolfalse{cbx:parens}}
         {}}}
    {\setunit{%
       \ifbool{cbx:parens}
         {\bibcloseparen\global\boolfalse{cbx:parens}}
         {}%
       \multicitedelim}}}

\DeclareCiteCommand{\cite}
  {\usebibmacro{cite:init}%
   \usebibmacro{prenote}}
  {\usebibmacro{citeindex}%
   \usebibmacro{cite}}
  {}
  {\usebibmacro{postnote}}

\DeclareCiteCommand*{\cite}
  {\usebibmacro{cite:init}%
   \usebibmacro{prenote}}
  {\usebibmacro{citeindex}%
   \usebibmacro{citeyear}}
  {}
  {\usebibmacro{postnote}}

\DeclareCiteCommand{\parencite}[\mkbibparens]
  {\usebibmacro{cite:init}%
   \usebibmacro{prenote}}
  {\usebibmacro{citeindex}%
   \usebibmacro{cite}}
  {}
  {\usebibmacro{postnote}}

\DeclareCiteCommand*{\parencite}[\mkbibparens]
  {\usebibmacro{cite:init}%
   \usebibmacro{prenote}}
  {\usebibmacro{citeindex}%
   \usebibmacro{citeyear}}
  {}
  {\usebibmacro{postnote}}

\DeclareCiteCommand{\footcite}[\mkbibfootnote]
  {\usebibmacro{cite:init}%
   \usebibmacro{prenote}}
  {\usebibmacro{citeindex}%
   \usebibmacro{cite}}
  {}
  {\usebibmacro{postnote}}

\DeclareCiteCommand{\footcitetext}[\mkbibfootnotetext]
  {\usebibmacro{cite:init}%
   \usebibmacro{prenote}}
  {\usebibmacro{citeindex}%
   \usebibmacro{cite}}
  {}
  {\usebibmacro{postnote}}

\DeclareCiteCommand{\smartcite}[\iffootnote\mkbibparens\mkbibfootnote]
  {\usebibmacro{cite:init}%
   \usebibmacro{prenote}}
  {\usebibmacro{citeindex}%
   \usebibmacro{cite}}
  {}
  {\usebibmacro{postnote}}

\DeclareCiteCommand{\textcite}
  {\usebibmacro{cite:init}}
  {\usebibmacro{citeindex}%
   \usebibmacro{textcite}}
  {}
  {\usebibmacro{textcite:postnote}}
  
% Legacy "his volume" citation commands
\newrobustcmd*{\citetv}{\cite}
\newrobustcmd*{\textcitetv}{\textcite}
\newrobustcmd*{\parencitetv}{\parencite}
  
% A cite command to produce the full reference in the footer of the landing page of 
% a paper in an edited volume

\DeclareCiteCommand{\fullciteFooter}
  {\defcounter{maxnames}{\blx@maxbibnames}%
    \usebibmacro{prenote}}
  {\usedriver
     {\DeclareNameAlias{sortname}{default}}
     {\thefield{entrytype}}}
  {\multicitedelim}
  {\usebibmacro{postnote}}
  
\DeclareCiteCommand{\fullciteImprint}
  {\defcounter{maxnames}{\blx@maxbibnames}%
    \usebibmacro{prenote}%
    \DeclarePunctuationPairs{colon}{*}}
  {\usedriver
     {\DeclareNameAlias{sortname}{default}}
     {\thefield{entrytype}}}
  {\multicitedelim}
  {\usebibmacro{postnote}\adddot}
  
\DeclareCiteCommand{\CiteFullAuthorList}
  {\boolfalse{citetracker}%
   \boolfalse{pagetracker}%
   \defcounter{maxnames}{\blx@maxbibnames}%
   \usebibmacro{prenote}}
  {\DeclareNameAlias{labelname}{first-last}%%
   \printnames{labelname}}
  {\multicitedelim}
  {\usebibmacro{postnote}}

\DeclareMultiCiteCommand{\cites}{\cite}{\setunit{\multicitedelim}}
\DeclareMultiCiteCommand{\parencites}[\mkbibparens]{\parencite}{\setunit{\multicitedelim}}
\DeclareMultiCiteCommand{\footcites}[\mkbibfootnote]{\footcite}{\setunit{\multicitedelim}}
\DeclareMultiCiteCommand{\footcitetexts}[\mkbibfootnotetext]{\footcitetext}{\setunit{\multicitedelim}}
\DeclareMultiCiteCommand{\smartcites}[\iffootnote\mkbibparens\mkbibfootnote]{\smartcite}
                                     {\setunit{\multicitedelim}}
\DeclareMultiCiteCommand{\textcites}{\textcite}{}

\DeclareCiteCommand{\citeauthor}
  {\boolfalse{citetracker}%
   \boolfalse{pagetracker}%
   \usebibmacro{prenote}}
  {\ifciteindex
     {\indexnames{labelname}}
     {}%
   \printtext[bibhyperref]{\printnames{labelname}}}
  {\multicitedelim}
  {\usebibmacro{postnote}}

\DeclareCiteCommand{\citeyear}
  {\boolfalse{citetracker}%
   \boolfalse{pagetracker}%
   \usebibmacro{prenote}}
  {\printtext[bibhyperref]{\iffieldundef{year}{\printfield{labelyear}}{\printfield{year}}\printfield{extradate}}}
  {\multicitedelim}
  {\usebibmacro{postnote}}
  
\DeclareCiteCommand{\citeyeartv}
  {\boolfalse{citetracker}%
   \boolfalse{pagetracker}%
   \usebibmacro{prenote}}
  {\printtext[bibhyperref]{\iffieldundef{year}{\printfield{labelyear}}{\printfield{year}}\printfield{extradate}\usebibmacro{cite:thisvolume}}}
  {\multicitedelim}
  {\usebibmacro{postnote}}

\DeclareCiteCommand{\citeyearpar}[\mkbibparens]
  {\boolfalse{citetracker}%
   \boolfalse{pagetracker}%
   \usebibmacro{prenote}}
  {\printtext[bibhyperref]{\iffieldundef{year}{\printfield{labelyear}}{\printfield{year}}\printfield{extradate}\usebibmacro{cite:thisvolume}}}
  {\multicitedelim}
  {\usebibmacro{postnote}}

\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}\usebibmacro{cite:thisvolume}}}
  {}
  {}

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

% These commands govern the punctuation between parts of citations, such as 
% between author and year, year and pages, or multiple citations.
\renewcommand*{\nameyeardelim}{\addspace}
\renewcommand*{\postnotedelim}{\addcolon\space}
\DeclareFieldFormat{postnote}{#1}
\DeclareFieldFormat{multipostnote}{#1}
\renewcommand{\multicitedelim}{\addcomma\space}%
\renewcommand{\compcitedelim}{\multicitedelim}

\endinput