Re: Reading input problem

arnuld wrote:
> 
> I have a function named getword that read every single input from
> std. input.
> 
> WHAT I WANTED:  I want it read the word if it has less than or
> equal to 30 characters. Anything else beyond that should be
> discarded and it should ask the user for new input. Ctrl-D should
> exit from the program.
> 
> WHAT I GOT: It reads anything beyond 30 characters as the next
> word :\ and I have to press Ctrl-D two times to exit from the
> program.

Try this.  To generate EOF press ctl-D at line beginning.

/* Get the next word consisting of alpha chars */
/* Return the terminating character (or EOF)   */
/* Down****ft the acquired word                 */
static int nextword(FILE *f, char *buffer, int max)
{
   int i, ch;

   while ((!isalpha(ch = getc(f))) && (ch != EOF)) continue;
   if (EOF != ch) {
      i = 0; max--;
      do {
         if (i < max) buffer[i++] = tolower(ch);
      } while (isalpha(ch = getc(f)));
      buffer[i] = '\0';    /* terminate string */
   }
   return ch;
} /* nextword */

(It's part of wdfreq.c, in the hashlib package.)

-- 
 [mail]: Chuck F (cbfalconer at maineline dot net) 
 [page]: <http://cbfalconer.home.att.net>
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