Smallcaps for page number of index entries in roman style (Imakeidx)

Question

I would like to have the page number of the index entries in smallcaps, at least for the part of the work that uses roman style. Unfortunately, the Imakeidx manual doesn't provide any explanation about customising.

This is the MWE

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

\begin{filecontents}{archivio.bib}

@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{imakeidx}
\makeindex[name=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}
\pagenumbering{roman}


I should like see the pagenumber of \cite{Dol2} printed in smallcaps



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

Answer 1

You have to pass the index entry as

\index[nomi]{<entry>|textsc}

The simplest way is to use a specific macro:

\begin{filecontents}{\jobname.bib}
@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{\jobname.bib}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

\usepackage{imakeidx}
\makeindex[name=nomi]
\newcommand{\scindex}[2][]{\index[#1]{#2|textsc}}

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

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


\begin{document}
\pagenumbering{roman}

I should like see the pagenumber of \cite{Dol2} printed in smallcaps

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