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\ProvidesFile{ext-authoryear-common.bbx}
[2021/06/08 v0.13 common files for extended biblatex
authoryear bibliography styles (MW)]
\RequireBibliographyStyle{ext-dashed-common}
\DeclareFieldFormat{biblabeldate}{\mkbibparens{#1}}
\DeclareFieldAlias{biblistlabeldate}{biblabeldate}
\providebibmacro*{bbx:ifmergeddate}{\@secondoftwo}
\renewbibmacro*{date}{%
\usebibmacro{bbx:ifmergeddate}
{}
{\printdate}}
% merge date/issue with date label
\def\bbx@opt@mergedate@maximum{%
\renewbibmacro*{date+extradate}{%
\iffieldundef{labelyear}
{}
{\printtext[\blx@delimcontext labeldate]{%
\iflabeldateisdate
{\printfield{issue}%
\setunit*{\addspace}%
\printdateextra}
{\printlabeldateextra}}}}%
\renewbibmacro*{bbx:ifmergeddate}{\iflabeldateisdate}%
\renewbibmacro*{issue+date}{%
\usebibmacro{bbx:ifmergeddate}
{}
{\printtext[issuedate]{%
\printfield{issue}%
\setunit*{\addspace}%
\printdate}}}}
% merge date with date label
\def\bbx@opt@mergedate@compact{%
\renewbibmacro*{date+extradate}{%
\iffieldundef{labelyear}
{}
{\printtext[\blx@delimcontext labeldate]{%
\iflabeldateisdate
{\printdateextra}
{\printlabeldateextra}}}}%
\renewbibmacro*{bbx:ifmergeddate}{\iflabeldateisdate}%
\renewbibmacro*{issue+date}{%
\ifboolexpr{test {\usebibmacro{bbx:ifmergeddate}}
and
test {\iffieldundef{issue}}}
{}
{\printtext[issuedate]{%
\printfield{issue}%
\setunit*{\addspace}%
\usebibmacro{bbx:ifmergeddate}
{}
{\printdate}}}%
\newunit}}
% merge year-only date with date label
\def\bbx@opt@mergedate@basic{%
\renewbibmacro*{date+extradate}{%
\iffieldundef{labelyear}
{}
{\printtext[\blx@delimcontext labeldate]{\printlabeldateextra}}}%
\renewbibmacro*{bbx:ifmergeddate}{%
\ifboolexpr{
test {\iflabeldateisdate}
and
not test {\ifdateshavedifferentprecision{label}{}}
}%
}%
\renewbibmacro*{issue+date}{%
\ifboolexpr{
test {\usebibmacro{bbx:ifmergeddate}}
and
test {\iffieldundef{issue}}
}
{}
{\printtext[issuedate]{%
\printfield{issue}%
\setunit*{\addspace}%
\printdate}}%
\newunit}}
% merge year-only date with year-only date label
\def\bbx@opt@mergedate@minimum{%
\renewbibmacro*{date+extradate}{%
\iffieldundef{labelyear}
{}
{\printtext[\blx@delimcontext labeldate]{\printlabeldateextra}}}%
\renewbibmacro*{bbx:ifmergeddate}{%
\ifboolexpr{
test {\iflabeldateisdate}
and
not test {\ifdateshavedifferentprecision{label}{}}
and
test {\iffieldundef{extradate}}
}%
}%
\renewbibmacro*{issue+date}{%
\ifboolexpr{
test {\usebibmacro{bbx:ifmergeddate}}
and
test {\iffieldundef{issue}}
}
{}
{\printtext[issuedate]{%
\printfield{issue}%
\setunit*{\addspace}%
\printdate}}%
\newunit}}
% don't merge date/issue with date label
\def\bbx@opt@mergedate@false{%
\renewbibmacro*{date+extradate}{%
\iffieldundef{labelyear}
{}
{\printtext[\blx@delimcontext labeldate]{\printlabeldateextra}}}%
\renewbibmacro*{bbx:ifmergeddate}{\@secondoftwo}%
\renewbibmacro*{issue+date}{%
\printtext[issuedate]{%
\printfield{issue}%
\setunit*{\addspace}%
\usebibmacro{date}}%
\newunit}}
\DeclareFieldAlias{biblabeltitle}{title}
\DeclareFieldAlias{titlecase:biblabeltitle}{tilecase}
\renewbibmacro*{labeltitle}{%
\iffieldundef{label}
{\iffieldundef{shorttitle}
{\iffieldundef{title}
{\printtext[biblabeltitle]{%
\printfield[titlecase:biblabeltitle]{maintitle}}%
\clearfield{maintitle}}
{\printtext[biblabeltitle]{%
\printfield[titlecase:biblabeltitle]{title}}%
\clearfield{title}}}
{\printtext[biblabeltitle]{%
\printfield[titlecase:biblabeltitle]{shorttitle}}}}
{\printfield{label}}}
\defbibenvironment{bibliography}
{\list
{\ifcsequal{extblx@introcite}{extblx@opt@introcite@label}
{\usebibmacro{introcite:typeset}}
{}}
{\ifcsequal{extblx@introcite}{extblx@opt@introcite@label}
{\setlength{\labelwidth}{\introcitewidth}%
\setlength{\leftmargin}{\labelwidth}%
\setlength{\labelsep}{\introcitesep}%
\addtolength{\leftmargin}{\labelsep}%
\renewcommand*{\makelabel}[1]{##1\hss}}
{\setlength{\leftmargin}{\bibhang}%
\setlength{\itemindent}{-\leftmargin}}%
\setlength{\itemsep}{\bibitemsep}%
\setlength{\parsep}{\bibparsep}}}
{\endlist}
{\item
\ifcsequal{extblx@introcite}{extblx@opt@introcite@label}
{\usebibmacro{introcite:break}}
{}}
% We need to execute some options that were already executed
% by the standard styles again, because we changed the
% underlying definitions.
\ExecuteBibliographyOptions{mergedate=compact, dashed=true}%
\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
%
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