_scanfi.c

MMI层OBJ不能完全编译

   }
#else
return 0;
#endif
}

/*****************************************************************************/
/* _SGET_CONV  -  Read the format flags into the _SFIELD pointer sfield      */
/*                                                                           */
/*    This function reads the characters directly after the '%' character,   */
/*    and stores them as flags in sfield, a pointer to a _SFIELD structure.  */
/*    These flags will later be used to process the conversion.              */
/*                                                                           */
/*****************************************************************************/
static int _sget_conv(char **_format, _SFIELD *sfield)
{
   /*------------------------------------------------------------------------*/
   /* Local variables                                                        */
   /*------------------------------------------------------------------------*/
   char  tmpbuf[8],
         *tmpptr     =  tmpbuf,
         *strend     =  (*_format) + strlen(*_format);

   (*_format)++;                        /* Go to the character after the '%' */

   /*------------------------------------------------------------------------*/
   /* If the next character in the format statement is a '*', set the        */
   /* _SFSTAR flag in sfield                                                 */
   /*------------------------------------------------------------------------*/
   if (**_format == '*')
   {
      _SET(sfield, _SFSTAR);
      (*_format)++;
   }
 
   /*------------------------------------------------------------------------*/
   /* If numerical characters follow, read them into a temporary string,     */
   /* convert it into a number, and store it as the field width in sfield    */
   /*------------------------------------------------------------------------*/
   for(;**_format >= '0' && **_format <= '9'; *(tmpptr++) = *((*_format)++));
   *tmpptr = '\0';
 
   if (strlen(tmpbuf)) sfield->fwidth = atoi(tmpbuf);
 
   /*------------------------------------------------------------------------*/
   /* Set the h, l, or L flags if they were specified                        */
   /*------------------------------------------------------------------------*/
   switch(**_format)
   {
       case 'L': _SET(sfield, _MFLD); (*_format)++; break;
       case 'h': _SET(sfield, _MFH);  (*_format)++; break;
       case 'l': 
       {
	   (*_format)++;
	   if (**_format == 'l') { _SET(sfield, _MFLL); (*_format)++; }
	   else _SET(sfield, _MFL);
       }
   }

   /*------------------------------------------------------------------------*/
   /* Read in the last character as the conversion specifier                 */
   /*------------------------------------------------------------------------*/
   sfield->conv = *((*_format)++);

   /*------------------------------------------------------------------------*/
   /* For the '[' conversion, read in the scanset.  Return an EOF if         */
   /* _SGET_SCANSET fails.                                                   */
   /*------------------------------------------------------------------------*/
   if ((sfield->conv == '[') && _sget_scanset(sfield, _format)) return (EOF);

   /*------------------------------------------------------------------------*/
   /* If we read past the end of the format string, return an error          */
   /*------------------------------------------------------------------------*/
   if (*_format > strend) return (EOF);
   else return (0);
}

/*****************************************************************************/
/* _SGET_SCANSET  -  Read in the scanset from the format statement           */
/*                                                                           */
/*    This function is called when the '[' conversion specifier has been     */
/*    encountered.  It reads in the scanset from the format statement,       */
/*    and stores it in sfield for later reference during the conversion.     */
/*                                                                           */
/*****************************************************************************/
static int _sget_scanset(_SFIELD *sfield, char **_format)
{
   /*------------------------------------------------------------------------*/
   /* Local variables                                                        */
   /*------------------------------------------------------------------------*/
   char  *tmpptr  =  sfield->scanset;

   if (**_format == '^')
   {
      _SET(sfield, _SFCIRC);
      (*_format)++;
   }

   if (**_format == ']') *(tmpptr++) = *((*_format)++);

   while(**_format != ']' && **_format != '\0') *(tmpptr++) = *((*_format)++);

   *tmpptr = '\0';
   if (**_format == ']') (*_format)++;
   if (**_format == '\0') return (EOF);

   return(0);
}

/*****************************************************************************/
/* _SPROC_INT  -  Read an integer string into a temporary string             */
/*                                                                           */
/*    This function takes the next integer in character form from the        */
/*    current input source, and copies it into a temporary string, where     */
/*    it can later be converted into a numerical value.                      */
/*                                                                           */
/*****************************************************************************/
static int _sproc_int(int w_counter, int (*_inpchar)(void **inp), 
                       void (*_uninpchar)(void **inp, char outchar), 
                       char *tmpptr, char conv, void **inp, int *num_read) 
{
   /*------------------------------------------------------------------------*/
   /* Note: w_counter is a parameter that holds the field width.  When       */
   /*       the number of digits specified by w_counter has been read from   */
   /*       input, the function finishes.  w_counter is checked before each  */
   /*       read to make sure that it is not equal to zero, and it is        */
   /*       decremented after each read.  If no field width was specified,   */
   /*       w_counter will be equal to -1, in which case it will never       */
   /*       equal zero, and the function will read from input until it       */
   /*       encounters the first invalid character.                          */
   /*------------------------------------------------------------------------*/

   /*------------------------------------------------------------------------*/
   /* Local variables                                                        */
   /*------------------------------------------------------------------------*/
   signed char inchar;
   int bnum_read = *num_read;

   /*------------------------------------------------------------------------*/
   /* Read in the next character                                             */
   /*------------------------------------------------------------------------*/
   inchar = _inpchar(inp);
   (*num_read)++;

   /*------------------------------------------------------------------------*/
   /* Accept the next character if it is a sign for the number               */
   /*------------------------------------------------------------------------*/
   if ((inchar == '+' || inchar == '-') && w_counter != 0)
   {
      *(tmpptr++) = inchar;
      inchar = _inpchar(inp);
      (*num_read)++;
      w_counter--;
   }


   /*------------------------------------------------------------------------*/
   /* Accept a leading '0' for an octal number, or a '0x' or '0X' for a      */
   /* hexadecimal number.                                                    */
   /*------------------------------------------------------------------------*/
   if ((conv == 'o' || conv == 'i' || conv =='x' || conv == 'p') && 
      w_counter != 0 && inchar == '0')
   {
      *(tmpptr++) = inchar;
      inchar = _inpchar(inp);
      (*num_read)++;
      w_counter--;
   }

   if ((conv == 'x' || conv == 'p' || conv == 'i') && w_counter != 0 &&
     (inchar == 'x' || inchar == 'X'))
   {
      *(tmpptr++) = inchar;
      inchar = _inpchar(inp);
      (*num_read)++;
      w_counter--;
   }

   /*------------------------------------------------------------------------*/
   /* Accept digits 0-9 for decimal numbers, or 0-F for hexadecimal numbers  */
   /*------------------------------------------------------------------------*/
   while(((inchar >= '0' && inchar <= '9') || 
          ((conv == 'x' || conv == 'p' || conv == 'i') &&
          ((inchar >= 'A' && inchar <= 'F') ||
          (inchar >= 'a' && inchar <= 'f')))) && w_counter != 0)
   {
      *(tmpptr++) = inchar;
      inchar = _inpchar(inp);
      (*num_read)++;
      w_counter--;
   }

   _uninpchar(inp, inchar);
   (*num_read)--;

   *tmpptr = '\0';

   if (bnum_read == *num_read) return(EOF);
   return(1);
}

/*****************************************************************************/
/* _SPROC_FLOAT   -  Read a float string into a temporary string             */
/*                                                                           */
/*    This function takes the next float in character form from the          */
/*    current input source, and copies it into a temporary string, where     */
/*    it can later be converted into a numerical value.                      */
/*                                                                           */
/*****************************************************************************/
static int _sproc_float(int w_counter, int (*_inpchar)(void **inp), 
                         void (*_uninpchar)(void **inp, char outchar), 
                         char *tmpptr, char conv, void **inp, int *num_read)
{
   /*------------------------------------------------------------------------*/
   /* Note: w_counter is a parameter that holds the field width.  When       */
   /*       the number of digits specified by w_counter has been read from   */
   /*       input, the function finishes.  w_counter is checked before each  */
   /*       read to make sure that it is not equal to zero, and it is        */
   /*       decremented after each read.  If no field width was specified,   */
   /*       w_counter will be equal to -1, in which case it will never       */
   /*       equal zero, and the function will read from input until it       */
   /*       encounters the first invalid character.                          */
   /*------------------------------------------------------------------------*/
 
   /*------------------------------------------------------------------------*/
   /* Local variables                                                        */
   /*------------------------------------------------------------------------*/
   signed char  inchar;
   int          invalid   = 0;
   int          bnum_read = *num_read;
   int          dec_flag  =  0;
   int          e_flag    =  0;

   /*------------------------------------------------------------------------*/
   /* Read in the next character                                             */
   /*------------------------------------------------------------------------*/
   inchar = _inpchar(inp);
   (*num_read)++;

   /*------------------------------------------------------------------------*/
   /* Accept the next character if it is a sign                              */
   /*------------------------------------------------------------------------*/
   if ((inchar == '+' || inchar == '-') && w_counter != 0)
   {
      *(tmpptr++) = inchar;
      inchar = _inpchar(inp);
      (*num_read)++;
      w_counter--;
   }
 
   /*------------------------------------------------------------------------*/
   /* Accept the next character if it is a numerical digit.                  */
   /* The characters '.', 'e', 'E', '+', and '-' are accepted under the      */