form_driver and wide-char

[Brian Tan]

Hi

I am trying to use form_driver with utf8 Chinese input. It seems that 
form_driver (FC6 ncurses-devel-5.5-24.20060715  FC6) not supporting 
wide-char (yet?). So I tried wctomb and append field_buffer with mbs and 
set_field_buffer. Field buffer displayed OK except for spacing problem 
after the Chinese char (diff between strlen and wcwidth, I think).  
However, reading buffer with field_buffer, the Chinese char became 
garbled. Code fragment as follows (linked with ncursesw and formw). 
Question: is there or will there be a "wide" version of form_driver ? If 
not, what is the best way of handling wide characters?

setlocale(LC_ALL,"");
int retc;
wchar_t wch;
retc = get_wch(&wch);
switch (retc) {
 case KEY_CODE_YES:   // function keys
   switch (wch) {
     case KEY_XXX:
       form_driver(my_form, REQ_YYY);
       break;
       .....
   }
 case OK:   // wchar
   int len;
   char mbs[10];
   len = wctomb(mbs,wch);
   mbs[len] = '\0';
   int fld; char buff[256]; char *ptr;
   fld = field_index(current_field(my_form));
   form_driver(my_form, REQ_VALIDATION);
   strcpy(buff, field_buffer(field[fld],0));
   ptr = buff + strlen(buff);    // trim trailing spaces
   mvprintw(23,0,"b/f buff=%s=      ", buff);   // debug
  while (--ptr && *ptr == ' ' && ptr >= buff);
  *ptr = '\0';
   if (wch < 128) {
      form_driver(my_form, wch);
   } else {
     strncat(buff, mbs, len);
     set_field_buffer(field[fld],0,buff);
     mvprintw(24,0,"a/f buff=%s=      ", buff);   // debug
   }
   break;
}


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