Xindy 无法对 Imakeidx 中的变音符号进行排序

Question

我正在使用 Imakeidx 自动生成 bibentries 的作者索引，但我对某些特殊字符（如变音符号）的排序有问题。按照建议，我尝试使用 xindy 作为排序引擎，但我得到的唯一结果是我还必须处理 .idx 文件（如果没有 xindy 我就不需要这样做），但排序仍然错误。

在我的例子中，我首先需要 Döllinger，然后需要 Dull。

我快要疯了，真的。

梅威瑟：

% !BIB TS-program = biber
% !BIB program = biber
% !TEX encoding = UTF-8 Unicode
% !TeX TS-program = xelatexmk

\begin{filecontents}{archivio.bib}

@book{Dull,
    Address = {Cambridge},
    Author = {Mark Dull},
    Publisher = {Amazon KDP},
    Title = {Hello world},
    Year = {1999}}

@book{Dol2,
    Address = {Moskwa},
    Author = {Philip Döllinger},
    Publisher = {Sinodal'naja tip.},
    Title = {Sistematičeskoe opisanie rukopisej moskovskoj Sinodal'noj (patriaršej) biblioteki},
    Year = {1894}}


\end{filecontents}

\documentclass[11pt, openany]{book}
\usepackage{polyglossia}
\setmainlanguage[babelshorthands=true]{italian}
\setotherlanguages{latin, english, french}

\usepackage[]{csquotes}
\usepackage{xpatch}
\usepackage[style=verbose-trad2,
            language=auto,
            ibidpage=true,
            autolang=other,
            useprefix=true,
            giveninits=true,
            indexing=true,
            dateabbrev=false,
            backend=biber,
        ]{biblatex}



\addbibresource{archivio.bib}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%


\usepackage[xindy]{imakeidx}
\makeindex[program=xindy, name=nomi, intoc=true, title=Indice dei nomi]

\renewbibmacro*{citeindex}{%
  \ifciteindex
    {\ifnameundef{namea}{\indexnames{labelname}}{\indexnames{namea}}}
    {}}

\DeclareIndexNameFormat{default}{%      Formato del nome dell'autore
  \usebibmacro{index:name}
    {\index[nomi]}
    {\namepartfamily}
    {\namepartgiveni}
    {\namepartprefix}
    {\namepartsuffix}}


\begin{document}


I should like to sort properly \cite{Dull} and \cite{Dol2}.



\printindex[nomi]       % Indice dei nomi   
\end{document}