How to get devanagari numerals in latex or xetex

Question

How to get devanagari numerals in xetex or latex - especially in enumerate environment?

I can use unicode to write devanagari text but I am unable to get devenagari numerals in section numbers, enumerate environment, etc.

Here is the basic code I am using:

\documentclass{article}

\usepackage{fontspec}
\usepackage{polyglossia}
\setdefaultlanguage{hindi}
\setotherlanguage{english}
\setmainfont[Script=Devanagari]{Nakula}

\begin{document}

\section{Section Heading}

देवनागरी

Same English Text

१ २ ३ ४ ५ ६ ७ ८ ९ ०

\begin{enumerate}
    \item   This is first
    \item   देवनागरी
\end{enumerate}

\end{document}           

And I am compiling using xetex (default set-up on Ubuntu 12.04).

Answer 1

There's currently no interface for changing all numerals to Devanagari ones. However you can define your own:

\documentclass{article}

\usepackage{fontspec}
\usepackage{polyglossia}
\setdefaultlanguage{hindi}
\setotherlanguage{english}

\setmainfont[Script=Devanagari]{Nakula}

\newcommand{\devanagarinumeral}[1]{%
  \devanagaridigits{\number\csname c@#1\endcsname}}

% renew all representation of counters
\renewcommand{\thesection}{\devanagarinumeral{section}}
\renewcommand{\thepage}{\devanagarinumeral{page}}
\renewcommand{\theenumi}{\devanagarinumeral{enumi}}

\begin{document}

\section{\foreignlanguage{english}{Section Heading}}

देवनागरी

\foreignlanguage{english}{Some English Text}

१ २ ३ ४ ५ ६ ७ ८ ९ ०

\begin{enumerate}
    \item   \foreignlanguage{english}{This is first}
    \item   देवनागरी
\end{enumerate}

\end{document}

A more risky approach is to change the meaning of \@arabic (the internal command that represents counter with arabic digits):

\makeatletter
\def\@arabic#1{\expandafter\devanagaridigits\expandafter{\number#1}}
\makeatother

This would spare you from redefining all needed counter representations, but may break packages that rely on \@arabic.

Answer 2

There is such a mapping, use Mapping=devanagarinumerals as the font feature. This mapping exists since July 2007, originally distributed with the velthuis package, now it is included in xetex-devanagari.