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\ProvidesFile{ext-biblatex-aux.def}
  [2021/06/08 v0.13 auxiliaries for extended biblatex citation style
   (MW)]

\def\extblx@requiredbiblatexversion{3.16}
\def\extblx@requiredbiblatexdate{2020/12/31}

\protected\def\extblx@info{\PackageInfo{biblatex-ext}}
\protected\def\extblx@warning{\PackageWarning{biblatex-ext}}
\protected\def\extblx@warning@noline{%
  \PackageWarningNoLine{biblatex-ext}}

\protected\def\extblx@error#1#2{\PackageError{biblatex-ext}{#1}{#2.}}

\@ifpackagelater{biblatex}{\extblx@requiredbiblatexdate}
  {}
  {\extblx@warning@noline{%
      Outdated version of biblatex detected.\MessageBreak
      Upgrade to biblatex \extblx@requiredbiblatexversion\space
      (\extblx@requiredbiblatexdate) or later.\MessageBreak
      I found '\csuse{abx@version} (\csuse{abx@date})'}}


%{<context>}{<opening delim>}{<closing delim>}
\newrobustcmd*{\DeclareOuterCiteDelims}{%
  \extblx@declareciteddelims{outer}}
\newrobustcmd*{\DeclareInnerCiteDelims}{%
  \extblx@declareciteddelims{inner}}

%{<inner/outer>}{<cite context>}{<opening delim>}{<closing delim>}
\def\extblx@declareciteddelims#1#2#3#4{%
  \csdef{extblx@citedelim@#2@#1@open}{#3}%
  \csdef{extblx@citedelim@#2@#1@close}{#4}}

%{<context>}
\newrobustcmd*{\UndeclareOuterCiteDelims}{%
  \extblx@undeclareciteddelims{outer}}
\newrobustcmd*{\UndeclareInnerCiteDelims}{%
  \extblx@undeclareciteddelims{inner}}

\newrobustcmd*{\UndeclareCiteDelims}[1]{%
  \UndeclareOuterCiteDelims{#1}%
  \UndeclareInnerCiteDelims{#1}}

%{<inner/outer>}{<cite context>}
\def\extblx@undeclareciteddelims#1#2{%
  \csundef{extblx@citedelim@#2@#1@open}%
  \csundef{extblx@citedelim@#2@#1@close}}

%{<alias>}{<cite context>}
\newrobustcmd*{\DeclareOuterCiteDelimsAlias}{%
  \@ifstar
    {\extblx@declareciteddelims@alias@i{outer}}
    {\extblx@declareciteddelims@alias{outer}}}
\newrobustcmd*{\DeclareInnerCiteDelimsAlias}{%
  \@ifstar
    {\extblx@declareciteddelims@alias@i{inner}}
    {\extblx@declareciteddelims@alias{inner}}}

%{<inner/outer>}{<alias>}{<cite context>}
\def\extblx@declareciteddelims@alias#1#2#3{%
  \csdef{extblx@citedelim@#2@#1@open}{%
    \csuse{extblx@citedelim@#3@#1@open}}%
  \csdef{extblx@citedelim@#2@#1@close}{%
    \csuse{extblx@citedelim@#3@#1@close}}}
\def\extblx@declareciteddelims@alias@i#1#2#3{%
  \csletcs{extblx@citedelim@#2@#1@open}{extblx@citedelim@#3@#1@open}%
  \csletcs{extblx@citedelim@#2@#1@close}{extblx@citedelim@#3@#1@close}}

% declare \mk...delim commands
\newrobustcmd*{\RegisterCiteDelims}[2]{%
  \ifcsundef{mk#1#2delims}
    {}
    {\extblx@error
       {Command \expandafter\string\csname mk#1#2delims\endcsname\space
        already defined}
       {biblatex-ext needs to define this command for the citation
        delimiter feature,\MessageBreak
        but \expandafter\string\csname mk#1#2delims\endcsname\space
        is already defined.\MessageBreak
        I don't want to overwrite the existing definition to avoid
        breaking your document.\MessageBreak
        If you force compilation despite the error, the command will be
        overwritten\MessageBreak
        with potentially catastrophic consequences}}%
  \protected\csdef{mk#1#2delims}##1{%
    \begingroup
      \blx@blxinit
      \blx@setsfcodes
      \csuse{extblx@citedelim@#2@#1@open}%
      ##1%
      \csuse{extblx@citedelim@#2@#1@close}%
    \endgroup}}

\RegisterCiteDelims{outer}{cite}
\RegisterCiteDelims{outer}{parencite}
\RegisterCiteDelims{outer}{supercite}
\RegisterCiteDelims{outer}{textcite}
\RegisterCiteDelims{outer}{footcite}
\RegisterCiteDelims{outer}{footcitetext}
\DeclareOuterCiteDelimsAlias{footcitetext}{footcite}

\RegisterCiteDelims{inner}{cite}
\RegisterCiteDelims{inner}{parencite}
\RegisterCiteDelims{inner}{supercite}
\RegisterCiteDelims{inner}{textcite}
\RegisterCiteDelims{inner}{footcite}
\RegisterCiteDelims{inner}{footcitetext}
\DeclareInnerCiteDelimsAlias{footcitetext}{footcite}

\newrobustcmd*{\mkextblxsupercite}[1]{%
  \mkbibsuperscript{%
    \mkoutersupercitedelims{#1}}}
\newrobustcmd*{\mkextblxfootcite}[1]{%
  \mkbibfootnote{%
    \mkouterfootcitedelims{#1}}}
\newrobustcmd*{\mkextblxfootcitetext}[1]{%
  \mkbibfootnotetext{%
    \mkouterfootcitetextdelims{#1}}}

% smartcite is special
% According to the docs it is like \parencite in a footnote and
% \footcite in the body.
% To mirror that as closely as possible, we need to change the
% delimiter context. The delimcontext is set in the pre-code, it is too
% late to detect a footnote at that point (since we will have started
% the footnote ourselves with \mkbibfootnote from the body), so we
% need to do it earlier.
\newrobustcmd*{\mksmartcite}[1]{%
  \iffootnote
    {\mkouterparencitedelims{%
       \def\extblx@thisdelimcontext{parencite}%
       #1}}
    {\mkextblxfootcite{%
       \def\extblx@thisdelimcontext{footcite}%
       #1}}}

%% Compatibility with older biblatex-ext
% Legacy names

% Compability for versions <= 0.3
% Changes were made for v0.4 2018-06-10.
\def\extblx@deprecate@delimcommand@robust#1#2{%
  \protected\csedef{#1}{%
    \noexpand\extblx@warning{%
      \expandafter\string\csname#1\endcsname\space is deprecated.
      \MessageBreak
      Use \expandafter\string\csname#2\endcsname\space (with s) instead.
      \MessageBreak
      Using \expandafter\string\csname#2\endcsname}%
  \expandonce{\csname#2\endcsname}}}

\extblx@deprecate@delimcommand@robust{DeclareOuterCiteDelim}
  {DeclareOuterCiteDelims}
\extblx@deprecate@delimcommand@robust{DeclareInnerCiteDelim}
  {DeclareInnerCiteDelims}
\extblx@deprecate@delimcommand@robust{UndeclareOuterCiteDelim}
  {UndeclareOuterCiteDelims}
\extblx@deprecate@delimcommand@robust{UndeclareInnerCiteDelim}
  {UndeclareInnerCiteDelims}
\extblx@deprecate@delimcommand@robust{DeclareOuterCiteDelimAlias}
  {DeclareOuterCiteDelimsAlias}
\extblx@deprecate@delimcommand@robust{DeclareInnerCiteDelimAlias}
  {DeclareInnerCiteDelimsAlias}

\newrobustcmd*{\extblx@create@mkcitedelim}{%
  \extblx@warning{%
    '\string\extblx@create@mkcitedelim' is deprecated.\MessageBreak
    Use '\string\RegisterCiteDelims' instead.\MessageBreak
    Using '\string\RegisterCiteDelims'}
  \RegisterCiteDelims}

% Some very rudimentary backwards warning code for old names
% this only warns, it can't salvage anything.
% Can/should this be removed in the future?
\AtEndDocument{%
  \ifcsundef{abx@ffd@*@bbx:introcite}
    {}
    {\extblx@warning@noline{%
       Field format 'bbx:introcite' defined.\MessageBreak
       The format has been renamed to 'bbx@introcite'.\MessageBreak
       This could mean that you are using the old name\MessageBreak
       which does not work any more.\MessageBreak
       No effort is made to switch to the new name.\MessageBreak
       Please use 'bbx@introcite' instead}}%
  \ifcsundef{abx@ffd@*@bbx:introcitelabeldate}
    {}
    {\extblx@warning@noline{%
       Field format 'bbx:introcitelabeldate'\MessageBreak
       defined.\MessageBreak
       The format has been renamed to\MessageBreak
       'bbx@introcitelabeldate'.\MessageBreak
       This could mean that you are using the old name\MessageBreak
       which does not work any more.\MessageBreak
       No effort is made to switch to the new name.\MessageBreak
       Please use\MessageBreak'bbx@introcitelabeldate'\MessageBreak
       instead}}%
  \ifcsundef{blx@delimcontextalias@bbx:introcite}
    {}
    {\extblx@warning@noline{%
       Delimiter context 'bbx:introcite' detected.\MessageBreak
       The context has been renamed to 'bbx@introcite'.\MessageBreak
       This could mean that you are using the old name\MessageBreak
       which does not work any more.\MessageBreak
       No effort is made to switch to the new name.\MessageBreak
       Please use 'bbx@introcite' instead}}%
  \ifcsundef{extblx@citedelim@bbx:introcite@inner@open}
    {}
    {\extblx@warning@noline{%
       Opening inner delimiter 'bbx:introcite' found.\MessageBreak
       The delimiters have been renamed to\MessageBreak
       'bbx@introcite'.\MessageBreak
       This could mean that you are using the old name\MessageBreak
       which does not work any more.\MessageBreak
       No effort is made to switch to the new name.\MessageBreak
       Please use 'bbx@introcite' instead}}%
  \ifcsundef{extblx@citedelim@bbx:introcite@inner@close}
    {}
    {\extblx@warning@noline{%
       Closing inner delimiter 'bbx:introcite' found.\MessageBreak
       The delimiters have been renamed to\MessageBreak
       'bbx@introcite'.\MessageBreak
       This could mean that you are using the old name\MessageBreak
       which does not work any more.\MessageBreak
       No effort is made to switch to the new name.\MessageBreak
       Please use 'bbx@introcite' instead}}%
}

% Compatibility with older biblatex

% \DeclareBiblatexOption (biblatex 3.13)
% we emulate \DeclareBiblatexOption only as far as we need it
% i.e. with scope 'global,type,entry' hard-coded
% we'll see for how long this is viable
\ifcsundef{DeclareBiblatexOption}
  {\newcommand*{\extblx@DeclareBiblatexOption}[1]{%
     \ifstrequal{#1}{global,type,entry}
       {\ifundef\extblx@warn@emulate@declarebiblatexoption
          {\global\let\extblx@warn@emulate@declarebiblatexoption\@empty
           \extblx@warning@noline{%
             Using biblatex-ext emulation of\MessageBreak
             \string\DeclareBiblatexOption\MessageBreak
             The scope argument 'global,type,entry' is hard-\MessageBreak
             coded and can't be changed.\MessageBreak
             Please update to biblatex 3.13 or above.\MessageBreak
             This warning can be silenced by defining\MessageBreak
             \string\extblx@warn@emulate@declarebiblatexoption}}
          {}}
       {\extblx@error
         {Emulation of \string\DeclareBiblatexOption\space only%
          \MessageBreak
          supports hard-coded scope argument\MessageBreak
          'global,type,entry'.\MessageBreak
          Update to biblatex 3.13 or above to use the real\MessageBreak
          definition instead of a cheap imitation}
         {This isn't actually \string\DeclareBiblatexOption,
          it is only the biblatex-ext\MessageBreak
          emulation.\MessageBreak
          The scope 'global,type,entry' is hard-coded and can't be changed.%
          \MessageBreak
          If you force compilation despite this error, 'global,type,entry'%
          \MessageBreak
          will be assumed.\MessageBreak
          That may cause further errors or undesirable and unexpected
          behaviour.\MessageBreak
          Update to biblatex 3.13 or above to use the real definition%
          \MessageBreak
          instead of a cheap imitation.\MessageBreak
          This emulation may be removed in a future version of biblatex-ext}}%
     \extblx@DeclareBiblatexOption@i}
   \newcommand*{\extblx@DeclareBiblatexOption@i}[2][boolean]{%
     \@ifnextchar[%]
      {\extblx@DeclareBiblatexOption@ii[#1]{#2}}
      {\extblx@DeclareBiblatexOption@iii[#1]{#2}}}
   \def\extblx@DeclareBiblatexOption@ii[#1]#2[#3]#4{%
     \DeclareBibliographyOption[#1]{#2}[#3]{#4}%
     \DeclareTypeOption[#1]{#2}[#3]{#4}%
     \DeclareEntryOption[#1]{#2}[#3]{#4}}
   \def\extblx@DeclareBiblatexOption@iii[#1]#2#3{%
     \DeclareBibliographyOption[#1]{#2}{#3}%
     \DeclareTypeOption[#1]{#2}{#3}%
     \DeclareEntryOption[#1]{#2}{#3}}%
   \let\DeclareBiblatexOption\extblx@DeclareBiblatexOption}
  {}

% generalised keyval interface (biblatex 3.15)
% https://github.com/plk/biblatex/pull/991
% \blx@kv@undef relying on keyval definitions
\providecommand*{\blx@kv@undef}[2]{\csundef{KV@#1@#2}}

% \mkrelatedstringtext biblatex 3.16
% if \mkrelatedstringtext is not defined,
% then we only have \mainlang, which is \selectlanguage
% and needs two groups for correct local effects
\providecommand*{\mkrelatedstringtext}[1]{{{\mainlang #1}}}

% biblatex 3.17
\providecommand*{\UndeclareDelimcontextAlias}[1]{%
  \csundef{blx@delimcontextalias@#1}}

\endinput
%
% This file is part of the biblatex-ext bundle.
% biblatex-ext is released under the LaTeX Project Public License v1.3c
% or later.
%
% A complete list of files included in that package can be found in
% README.md or - failing that - in ext-standard.bbx.
%
% Official releases of this package are on CTAN
%   https://www.ctan.org/pkg/biblatex-ext
% development takes place on GitHub
%   https://github.com/moewew/biblatex-ext
%