small caps roman numbers for index entries with xindy and hyperref

Question

Considering the following example:

\documentclass{memoir}
\usepackage{makeidx}
\makeindex
%\usepackage[hyperindex=false]{hyperref}%doesn't help
\usepackage{hyperref} %commenting out this one would do.
\begin{document}
\frontmatter
Something\index{Something}. And something else\index{Something else}
\mainmatter
Something\index{Something}. And something else\index{Something else}
\printindex
\end{document}

And the following minimal xindy style file, formatting roman page numbers as small caps:

(markup-locref :class "roman-page-numbers" :open  "\textsc{" :close "}")

$ xindy -M texindy -M scpages.xdy example.idx

This works when I comment out hyperref:

However with hyperref roman numbers do not get formatted as small caps:

How do I make it work with hyperref?

Edit: One possible workaround is to comment out hyperref just for building the index. Once I'm satisfied with the index I can comment it back in again, but I'll have to comment out \makeindex and not run xindy, which means that if because of editing my project some entries get pushed onto another page it will not automatically be reflected in the index. Also, in the pdf the page numbers will not be clickable. For print this workaround is sufficient, and at least hyperref works for the rest of the file, i.e. separate page ranges for front- and mainmatter in the pdf.

Edit:

Another temporary fix is to run a perl one liner over the .ind-file:

perl -pi -e 's/(\\hyperpage{.*?})/\\textsc{$1}/g' myfile.ind

which encapsulates every instance of \hyperpage{[some number]} with \textsc{}. That way one doesn't need to switch hyperref between commented in and out, thus streamlining the build process. The numbers become clickable, and one gets the desired small caps for the roman numbers. This line can be conveniently added to a buildscript after the xindy call.

Answer 1

I propose a possible tool to achieve what you want. This defines 3 new page numbering styles. They were not written by me, but I can't remember who did, probably at my request, to solve some problem of old-style typography.

The 3 styles are: scroman (roman style with small caps), osroman (like roman, except if page number in consecutive is, the last i is replaced with j, and scosroman (same as previous, with small caps). Here is an example:

\documentclass[openany]{book}
\usepackage{ebgaramond}

\usepackage{lipsum}% texte bidon

\makeatletter
\newcommand{\oldstyleroman}[1]{\expandafter\@oldstyleroman#1\@nil}
\def\@oldstyleroman#1#2\@nil{%
  \ifcat$\detokenize{#2}$%
    \expandafter\@firstoftwo
  \else
    \expandafter\@secondoftwo
  \fi
  {\if#1ij\else#1\fi}% si #2 est vide
  {#1\@oldstyleroman#2\@nil}% si #2 n'est pas vide
}
\def\scroman#1{\expandafter\@scroman\csname c@#1\endcsname}
\def\@scroman#1{{\scshape\romannumeral #1}}
\def\osroman#1{\expandafter\@osroman\csname c@#1\endcsname}
\def\@osroman#1{{\oldstyleroman{\romannumeral #1}}}
\def\scosroman#1{\expandafter\@scosroman\csname c@#1\endcsname}
\def\@scosroman#1{{\scshape\oldstyleroman{\romannumeral #1}}}
\makeatother

\usepackage{hyperref}

\begin{document}

\tableofcontents

\frontmatter
\pagenumbering{scroman}

\chapter{Introduction}
\section{Titre}
\lipsum[1-10]
\section{Titre}
\label{page}
\lipsum[11-20]

\mainmatter
\chapter{A Matter of Styles}
\lipsum[21-25]

Voir page~\pageref{page}.


\end{document}