> Hi,
>
> what is the preferred way of producing roman numerals as stylistic
> alternatives (while still inputing arabic numerals)? Unicode says, that
> using the codepoints for roman numerals is deprecated and it seems fair
> to me, as the meaning is the same.
>
> \romand{<counter>} works of course, but that will probably
> use letters.
You can try this:
%%% XeTeX code starts
\makeatletter
\def\UniRoman#1{\expandafter\@UniRoman\csname c@#1\endcsname}
\def\uniroman#1{\expandafter\@uniroman\csname c@#1\endcsname}
\def\@UniRoman#1{\ifcase#1\or
Ⅰ\or Ⅱ\or Ⅲ\or Ⅳ\or Ⅴ\or Ⅵ\or Ⅶ\or Ⅷ\or Ⅸ\or Ⅹ\or Ⅺ\or Ⅻ\else
\expandafter\@slowUniRoman\romannumeral #1@\fi}
\def\@slowUniRoman#1{\ifx @#1% then terminate
\else
\if i#1Ⅰ\else\if v#1Ⅴ\else\if x#1Ⅹ\else\if
l#1Ⅼ\else\if c#1Ⅽ\else\if d#1Ⅾ\else \if
m#1Ⅿ\else#1\fi\fi\fi\fi\fi\fi\fi
\expandafter\@slowUniRoman
\fi
}
\def\@uniroman#1{\ifcase#1\or
ⅰ\or ⅱ\or ⅲ\or ⅳ\or ⅴ\or ⅵ\or ⅶ\or ⅷ\or ⅸ\or ⅹ\or ⅺ\or ⅻ\else
\expandafter\@slowuniroman\romannumeral #1@\fi}
\def\@slowuniroman#1{\ifx @#1% then terminate
\else
\if i#1ⅰ\else\if v#1ⅴ\else\if x#1ⅹ\else\if
l#1ⅼ\else\if c#1ⅽ\else\if d#1ⅾ\else \if
m#1ⅿ\else#1\fi\fi\fi\fi\fi\fi\fi
\expandafter\@slowuniroman
\fi
}
\makeatother
\newcounter{cnta}
\renewcommand{\thecnta}{\uniroman{cnta}} % lowercase Roman numerals
\newcounter{cntb}
\renewcommand{\thecnta}{\UniRoman{cntb}} % uppercase Roman numerals
%%% XeTeX code ends
Since Unicode defines numerals from 1 to 12, I use those when the counter's
value is in that range; otherwise I mimick the procedure for getting uppercase
Roman numerals of the LaTeX kernel.
Ciao
Enrico
--
Enrico Gregorio + Dipartimento di Informatica + Tel: +39 045
8027937
enrico.grego...@univr.it + Università degli Studi di Verona +
(grego...@math.unipd.it) + Strada le Grazie 15 / I-37134 Verona + Fax: +39 045
8027928
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