Linux

Hi,
I need to read one chinese char using lex. I tried using "." ( period ) for pattern matching but in vain.
Could anyone suggest me how do i proceeed.
Sample pgm: to read a chinese char in single quotes.
%{
#include <locale.h>
%}
%%
\'.\' printf("SUCCESS\n");
. printf("Failed\n");
}
%%
main()
{
setlocale(LC_ALL,"");
yylex();
}
This always prints me "Failed" message. I cannot use '.+' for matching for my application.
I can view the chinese char with locale settings on my machine. I am using linux machine . Locale set is : zh_CN.utf8.

Thank You