Thanks Wolfgang, it's perfect.

On Tue, Apr 1, 2008 at 5:04 PM, Wolfgang Schuster <schuster.wolfgang@googlemail.com> wrote:
On Tue, Apr 1, 2008 at 10:49 AM, Wolfgang Schuster
> On Tue, Apr 1, 2008 at 9:56 AM, Zhichu Chen <zhichu.chen@gmail.com> wrote:
> > Yes, only I don't need that complex. I mean \chinesenumber{123} will give
> > "one hundred and twenty-three" but all I want is "one two three." Besides,
> > I don't like to copy such long codes since I really don't want to load
> > font-chi.tex
> > which gives weird spacing problems while typesetting Chinese along with
> > English. Anyway, I'd love to learn something rather than to use something.
> >
> > Thanks.

A slightly modified version.

You could now also use counter values.

\def\dododozhnumber#1%
 {\ifcase#1
 a\or
 b\or
 c\or
 d\or
 e\or
 f\or
 g\or
 i\or
 h\or
 i\fi}

\def\zhnumber#1%
 {\expandafter\dozhnumber#1\endzhnumber}

\def\endzhnumber{\endzhnumber}

\def\dozhnumber
 {\futurelet\next\dodozhnumber}

\def\dodozhnumber
 {\ifx\next\endzhnumber
   \let\next\gobbleoneargument
 \else
   \def\next##1{\dododozhnumber{##1}\dozhnumber}%
 \fi\next}

\starttext
\zhnumber{01234}

\zhnumber{\number\pageno}
\stoptext

Wolfgang
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