痛苦地最终调整了 biblatex 风格

Question

我几乎成功地适应了一种biblatex风格。

以下是最后几个步骤：

\documentclass{article}

\usepackage{filecontents}
\usepackage[T1]{fontenc}

\usepackage[style=authoryear, backend = biber, natbib, maxcitenames = 2, maxbibnames=99, minnames=1, giveninits, style=ext-authoryear, innamebeforetitle=true]{biblatex}

\DeclareNameFormat{family}{%
  \usebibmacro{name:family}
    {\namepartfamily}
    {\namepartgiven}
    {\namepartprefix}
    {\namepartsuffix}%
  \usebibmacro{name:andothers}}

\DeclareNameAlias{sortname}{family-given}

\renewcommand{\postnotedelim}{: }
\DeclareFieldFormat{postnote}{#1}

\DefineBibliographyExtras{british}{%
  \DeclareBibstringSet{latin}{andothers,ibidem}%
  \DeclareBibstringSetFormat{latin}{\mkbibemph{#1}}%
}

\DeclareFieldFormat[article,inbook,inproceedings,patent,thesis,unpublished,suppbook,suppcollection,suppperiodical]{title}{#1}
\DeclareFieldFormat[incollection]{title}{#1}
\DeclareFieldFormat[incollection]{booktitle}{\mkbibemph{#1}}
\renewbibmacro*{in:}{%
  \setunit{\addcomma\space}%
  \bibstring{in}%
  \space}
\DeclareFieldFormat{pages}{#1}

\usepackage{biblatex}
\renewbibmacro{in:}{%
  \ifentrytype{incollection}{\setunit{\addcomma\space}%
  \bibstring{in}%
  \space}{}}

\AtEveryBibitem{\clearfield{month}}
\AtEveryCitekey{\clearfield{month}}
\renewcommand*{\bibpagespunct}{\addcolon\space}

\AtBeginBibliography{%
  \renewcommand*{\finalnamedelim}{%
    \ifnumgreater{\value{liststop}}{2}{\finalandcomma}{}%
    \addspace\&\space}%
}

\DeclareNameWrapperFormat{sortname}{%
  \renewcommand*{\mkbibnamefamily}{\textsc}%
  #1%
}

\renewbibmacro*{issue+date}{%
  \setunit{\addcomma\space}% NEW
    \iffieldundef{issue}
      {\usebibmacro{date}}
      {\printfield{issue}%
       \setunit*{\addspace}%
       \usebibmacro{date}}% NEW
  \newunit}

\renewbibmacro*{byeditor+others}{%
  \ifnameundef{editor}
    {}
    {\printnames[byeditor]{editor}%
     \setunit{\addspace}%
     \usebibmacro{byeditor+othersstrg}%
     \clearname{editor}%
     \newunit}%
  \usebibmacro{byeditorx}%
  \usebibmacro{bytranslator+others}}

\DeclareDelimFormat[bib]{innametitledelim}{\addspace}
\DeclareFieldFormat{editortype}{\mkbibparens{#1}}
\DeclareDelimFormat{editortypedelim}{\addspace}

\usepackage{xpatch}
\xpatchbibmacro{byeditor+othersstrg}{\printtext}{\printtext[parens]}{}{}





\newenvironment{hanglist}[1][\parindent]{%
    \begin{list}{}{%
        \setlength{\leftmargin}{#1}
        \setlength{\labelwidth}{0pt}
        \setlength{\labelsep}{0pt}
        \setlength{\itemindent}{-#1}}
    }{%
        \end{list}
    }

\begin{filecontents}[force]{\jobname.bib}
@incollection{key,
    address = {Vienna},
    edition = {Österreichischen Akademie der Wissenschaften},
    title = {Cremation burials in {Greece} from the {Late} {Bronze} {Age} to the {Early} {Iron} {Age}: continuity or change?},
    booktitle = {Brandbestattungen von der mittleren {Donau} bis zur Ägäis zwischen 1300 und 750 v. {Chr}.},
    author = {Ruppenstein, Florian},
    editor = {Lochner, M. and Ruppenstein, Florian},
    year = {2013},
    pages = {185--196},
}
\end{filecontents}

\addbibresource{\jobname.bib}



\begin{document}

This is the good reference \citep{key}.

\printbibliography

\noindent Expected output:

\begin{hanglist}[4ex]
\item
\textsc{Ruppenstein}, F. 2013. Cremation burials in Greece from the Late Bronze Age to the Early Iron Age: continuity or change?, in M. Lochner \& F. Ruppenstein (ed.) \emph{Brandbestattungen von der mittleren Donau bis zur Ägäis zwischen 1300 und 750 v. Chr.}: 185--196. Vienna: Österreichischen Akademie der Wissenschaften.
\end{hanglist}
\end{document}

抱歉，有点长，但如附图所示，最后几点我很难调整。

有人可以帮我完成或者清理一下我的脚本吗？