Bedingtes Ausblenden von Teilen von Bibtex-Feldern abhängig vom Sprachfeldwert

Question

Um endlich eine umfassende Antwort auf meine eigene Frage zu geben, damit Sie später darauf zurückgreifen können, wird das Folgende das bewirken, was ich ursprünglich wollte:

Zunächst einmal besteht keine Notwendigkeit, das \zh{}Token zu verwenden, da dieses Beispiel mit der Verwendung des Namenszusatzes funktioniert, wie hier von Audrey beschrieben:https://tex.stackexchange.com/a/66825/47927

Ich habe den Teil von Audreys Vorschlag nicht verwendet titleaddon, da ich ihn nicht brauche. Außerdem habe ich mich an die Reihenfolge „Nachname-Vorname“ gehalten.

Die Bibliographieeinträge sollten also wie folgt aussehen (die Schlüsselwörter „latn“ oder „hani“ sollen das Schriftsystem des jeweiligen Artikels darstellen und dienen dazu, den chinesischen Teil des Namens bedingt auszublenden):

@article{Liu2008,
  author    = {Liu, 刘国福, Guofu},
  title     = {The Latest Development of Immigration Law: On the Transformation of China's Emmigration and Immigration Administration Law (移民法的最新发展——兼论中国出入境管理法的改造和重塑)},
  journal   = {Journal of Henan Administrative Institute of Politics and Law (河南省政法管理干部学院学报)},
  year      = {2008},
  volume    = {5},
  pages     = {46--58},
  language  = {chinese},
  keywords  = {article,hani}
}

@book{Liu2011,
  author    = {Liu, 刘国福, Guofu},
  title     = {Chinese Immigration Law},
  year      = {2011},
  publisher = {Ashgate},
  address   = {Farnham},
  language  = {english},
  keywords  = {monography,latn}
}

Nun der Teil für die .tex-Datei (leicht bearbeitet aus dem oben verlinkten Beitrag von Audrey):

% Keep name affixes for English names
\forcsvlist{\listadd\nameaffixlist}{Junior,Senior}
\newcommand{\ifnameaffix}[1]{%
 \ifboolexpr{test{\ifrmnum{#1}} or test{\ifinlist{#1}{\nameaffixlist}}}}

% Set label format using last-first order
\DeclareNameFormat{labelname}{%
 \ifboolexpr{test{\ifblank{#7}} or test{\ifnameaffix{#7}}}
  {\ifcase\value{uniquename}%
   \usebibmacro{name:last}{#1}{#3}{#5}{#7}\or
   \ifuseprefix
    {\usebibmacro{name:last-first}{#1}{#4}{#5}{#8}}
    {\usebibmacro{name:last-first}{#1}{#4}{#6}{#8}}\or
    \usebibmacro{name:last-first}{#1}{#3}{#5}{#7}\fi}%
  {\ifnumequal{\value{uniquename}}{0}%
   {\usebibmacro{name:cjk}{#1}{}{}}
   {\usebibmacro{name:cjk}{#1}{#3}{}}}%
 \usebibmacro{name:andothers}
}

% Set name field format also using last-first order
\DeclareNameFormat{last-first}{%
 \ifboolexpr{test{\ifblank{#7}} or test{\ifnameaffix{#7}}}
  {\iffirstinits
   {\usebibmacro{name:last-first}{#1}{#4}{#5}{#7}}
   {\usebibmacro{name:last-first}{#1}{#3}{#5}{#7}}}
  {\usebibmacro{name:cjk}{#1}{#3}{#7}}%
 \usebibmacro{name:andothers}
}
\DeclareNameAlias{sortname}{last-first}
\DeclareNameAlias{default}{last-first}

% Making Chinese name appear after first name in parentheses, but only if the keyword 'hani' exists (see bib entries above for reference)
\newbibmacro*{name:cjk}[3]{%
 \usebibmacro{name:delim}{#2#3#1}%
 \usebibmacro{name:hook}{#2#3#1}%
 \mkbibnamelast{#1}%
 \ifblank{#2}{}{\bibnamedelimd\mkbibnamefirst{#2}}%
 \ifkeyword{hani}{%
  \ifblank{#3}{}{\bibnamedelimd\mkbibnameaffix{\mkbibparens{#3}}}%
 }{}
}

\AtEveryBibitem{\clearlist{language}}
\AtBeginBibliography{%
 \renewcommand*{\multinamedelim}{\addsemicolon\space}
}

Eine Sache ist zu beachten: Wenn in der Bibliographie nur das erste Vorkommen des Autors angezeigt wird und die folgenden Vorkommen durch einen Bindestrich ersetzt werden, wählt dieses Skript das erste Vorkommen abhängig von der Sprache des ersten Eintrags. Wenn also der erste Eintrag nicht chinesisch ist, einer der folgenden Einträge jedoch schon, wird der chinesische Name nirgendwo erscheinen.

Bearbeiten (22.01.2018):

Die Makronamen name:lastund name:firstwurden in name:familyund geändert name:given, das Makro \mkbibnamefirstwurde dementsprechend in \mkbibnamegivenund \iffirstinitsin umbenannt \ifgiveninits. Des Weiteren \ifblanksollte in geändert werden \ifdefvoid. Ich habe diese Antwort nicht vor Kurzem getestet. Ich vermute, dass noch einige andere Dinge geändert werden müssen, da die BibLaTeX-Pakete in der Zwischenzeit mehrmals aktualisiert wurden.

Dies ist mein endgültiges Setup als MWE (obwohl es ziemlich viel Code ist):

\begin{filecontents}{example.bib}
    @article{Liu2008,
      author    = {Liu, 刘国福, Guofu},
      title     = {The Latest Development of Immigration Law: On the Transformation of China's Emmigration and Immigration Administration Law (移民法的最新发展——兼论中国出入境管理法的改造和重塑)},
      journal   = {Journal of Henan Administrative Institute of Politics and Law (河南省政法管理干部学院学报)},
      year      = {2008},
      volume    = {5},
      pages     = {46--58},
      language  = {chinese},
      keywords  = {article,hani}
    }

    @book{Liu2011,
      author    = {Liu, 刘国福, Guofu},
      title     = {Chinese Immigration Law},
      year      = {2011},
      publisher = {Ashgate},
      address   = {Farnham},
      language  = {english},
      keywords  = {monography,latn}
    }
\end{filecontents}

\documentclass{article}

\usepackage{fontspec}
\setmainfont[SmallCapsFeatures={LetterSpace=2}]{TeX Gyre Termes}

\usepackage{xeCJK} 
\setCJKmainfont[Script=CJK]{Noto Serif CJK SC}
\CJKsetecglue{\,}

\usepackage[
 backend=biber,
 language=autobib,
 autolang=hyphen,
 style=authoryear,
 defernumbers=true,
 sortlocale=en-GB,
 urldate=long,
 dateabbrev=false,
 sortcites=true,
 sorting=anyvt,
 safeinputenc
 ]{biblatex}
% =====

\renewbibmacro*{labeltitle}{\iffieldundef{shorttitle}%
 {\printfield{title}\clearfield{title}}%
 {\mkbibemph{\printfield{shorttitle}}\addspace\printtext[parens]{\printfield{year}}}%
}

\renewbibmacro*{date+extradate}{\ifkeyword{law}%
 {}%
 {\printtext[parens]{%
   \iflabeldateisdate%
    {\printfield{issue}\setunit*{\addspace}\printdateextra}%
    {\printlabeldateextra}}}%
}
\renewbibmacro*{issue+date}{\ifkeyword{law}%
 {}%
 {\iflabeldateisdate%
  {\printfield{issue}\setunit*{\addspace}\printtext[parens]{\printdate}}%
  {\printtext[parens]{\printfield{issue}\setunit*{\addspace}\printdate}}}%
}
\renewbibmacro*{cite:labeldate+extradate}{\ifkeyword{law}%
 {}%
 {\iffieldundef{labelyear}%
  {}%
  {\printtext[bibhyperref]{\mkbibparens{\printlabeldateextra}}}}%
}

\renewcommand*{\multinamedelim}{\addnbthinspace\slash\thinspace}
\renewcommand*{\finalnamedelim}{\multinamedelim}
\renewcommand*{\labelnamepunct}{\addcolon\addspace}
\renewcommand*\mkbibnameprefix[1]{\textsc{#1}}
\renewcommand*\mkbibnamefamily[1]{\textsc{#1}}
\renewcommand*\bibnamedash{\rule[.48ex]{3em}{.5pt}\addspace}
\DeclareFieldFormat*{citetitle}{\mkbibemph{#1}}
\DeclareFieldFormat*{extradate}{\addnbthinspace\mknumalph{#1}}
\DeclareFieldFormat*{url}{URL\addcolon\addspace\url{#1}}

% =====
% Settings for Chinese names

\forcsvlist{\listadd\nameaffixlist}{Junior,Senior}

\newcommand{\ifnameaffix}[1]{%
 \ifboolexpr{ test {\ifrmnum{#1}} or test {\xifinlist{#1}{\nameaffixlist}} }}

% Based on definitions from biblatex.def

\newbibmacro*{name:cjk}[3]{%
 \usebibmacro{name:delim}{#2#3#1}%
 \usebibmacro{name:hook}{#2#3#1}%
 \mkbibnamefamily{#1}%
 \ifdefvoid{#2}{}{\bibnamedelimd\mkbibnamegiven{#2}}%
 \ifkeyword{hani}{%
  \ifdefvoid{#3}{}{\bibnamedelimd\mkbibnamesuffix{\mkbibparens{\upshape #3}}}%
 }{}}
 
\newbibmacro*{name:cjk-short}[3]{%
 \usebibmacro{name:delim}{#2#3#1}%
 \usebibmacro{name:hook}{#2#3#1}%
 \mkbibnamefamily{#1}%
 \ifdefvoid{#2}{}{\bibnamedelimd\mkbibnamegiven{#2}}%
 \ifkeyword{hani}{%
  \ifdefvoid{#3}{}{}%
 }{}}

\DeclareNameFormat{given-family}{%
 \ifboolexpr{ test {\ifdefvoid{\namepartsuffix}} or test {\ifnameaffix{\namepartsuffix}} }%
  {\ifgiveninits%
   {\usebibmacro{name:given-family}
    {\namepartfamily}
    {\namepartgiveni}
    {\namepartprefix}
    {\namepartsuffix}}%
   {\usebibmacro{name:given-family}
    {\namepartfamily}
    {\namepartgiven}
    {\namepartprefix}
    {\namepartsuffix}}}%
  {\usebibmacro{name:cjk}{\namepartfamily}{\namepartgiven}{\namepartsuffix}}%
 \usebibmacro{name:andothers}}

\DeclareNameFormat{family-given}{%
 \ifboolexpr{ test {\ifdefvoid{\namepartsuffix}} or test {\ifnameaffix{\namepartsuffix}} }%
  {\ifgiveninits%
   {\usebibmacro{name:family-given}
    {\namepartfamily}
    {\namepartgiveni} 
    {\namepartprefix}
    {\namepartsuffix}}%
   {\usebibmacro{name:family-given}
    {\namepartfamily}
    {\namepartgiven}
    {\namepartprefix}
    {\namepartsuffix}}}%
  {\usebibmacro{name:cjk}{\namepartfamily}{\namepartgiven}{\namepartsuffix}}%
 \usebibmacro{name:andothers}}

\DeclareNameFormat{family-given/given-family}{%
 \ifboolexpr{ test {\ifdefvoid{\namepartsuffix}} or test {\ifnameaffix{\namepartsuffix}} }%
  {\ifnumequal{\value{listcount}}{1}%
   {\ifgiveninits%
    {\usebibmacro{name:family-given}
    {\namepartfamily}
    {\namepartgiveni}
    {\namepartprefix}
    {\namepartsuffix}}%
   {\usebibmacro{name:family-given}
    {\namepartfamily}
    {\namepartgiven}
    {\namepartprefix}
    {\namepartsuffix}}%
   \ifboolexpe{ test {\ifdefvoid\namepartgiven} and test {\ifdefvoid\namepartprefix} }%
    {}%
    {\usebibmacro{name:revsdelim}}}%
   {\ifgiveninits%
    {\usebibmacro{name:given-family}
     {\namepartfamily}
     {\namepartgiveni}
     {\namepartprefix}
     {\namepartsuffix}}%
    {\usebibmacro{name:given-family}
     {\namepartfamily}
     {\namepartgiven}
     {\namepartprefix}
     {\namepartsuffix}}}}%
  {\usebibmacro{name:cjk}{\namepartfamily}{\namepartgiven}{\namepartsuffix}}%
 \usebibmacro{name:andothers}}
  
\DeclareNameFormat{labelname}{%
 \ifcase\value{uniquename}%
  \usebibmacro{name:family}
   {\namepartfamily}
   {\namepartgiven}
   {\namepartprefix}
   {\namepartsuffix}%
  \or%
  \ifboolexpr{ test {\ifdefvoid{\namepartsuffix}} or test {\ifnameaffix{\namepartsuffix}} }%
   {\ifuseprefix%
    {\usebibmacro{name:given-family}
     {\namepartfamily}
     {\namepartgiven}  % i
     {\namepartprefix}
     {\namepartsuffix}}% i
    {\usebibmacro{name:given-family}
     {\namepartfamily}
     {\namepartgiven}   % i
     {\namepartprefix}  % i
     {\namepartsuffix}}}% i
   {\usebibmacro{name:cjk-short}{\namepartfamily}{\namepartgiven}{\namepartsuffix}}%
 \or%
  \ifboolexpr{ test {\ifdefvoid{\namepartsuffix}} or test {\ifnameaffix{\namepartsuffix}} }%
   {\usebibmacro{name:given-family}%
    {\namepartfamily}
    {\namepartgiven}
    {\namepartprefix}
    {\namepartsuffix}}%
   {\usebibmacro{name:cjk-short}{\namepartfamily}{\namepartgiven}{\namepartsuffix}}%
 \fi%
 \usebibmacro{name:andothers}}
 
\DeclareFieldFormat{citetitle}{\mkbibemph{#1}\ifkeyword{law}{\addspace\printtext[parens]{\printfield{year}}}{}}

\AtEveryBibitem{\clearlist{language}}
\AtBeginBibliography{%
 \renewcommand*{\multinamedelim}{\addsemicolon\addspace}%
}

\DefineBibliographyExtras{english}{%
 \protected\def\mkbibdatelong#1#2#3{%
  \iffieldundef{#3}
   {}
   {\stripzeros{\thefield{#3}}%
    \iffieldundef{#2}{}{\nobreakspace}}%
  \iffieldundef{#2}
   {}
   {\mkbibmonth{\thefield{#2}}%
    \iffieldundef{#1}{}{\space}}%
  \iffieldbibstring{#1}
   {\bibstring{\thefield{#1}}}
   {\stripzeros{\thefield{#1}}}%
 }%
}

\addbibresource{example.bib}

\begin{document}

Some text.\footnote{\cite{Liu2008}, \cite{Liu2011}.}

\printbibliography

\end{document}

Die Ausgabe für die Bibliographie lautet:

Die Ausgabe für die Fußnoten lautet:

Answer 1