/*

   Kenneth L Moore
   CIT 145
   22/01/02 07:31
   file strio.c String input and output

*/
#include <stdio.h>
#include <stdlib.h>
#define WORKFILE "Workfile.work"

/* prototype */
void stro( char * str, int strmax, char *name );

/* macro to invoke string display with length and name */
#define SHOWSTR( s )  stro( (s), sizeof( (s) ), #s )


int main ( void )
{
   long i;
   int count;
   char   joe[11], moe[21], line[81];
   FILE   work;

   /* first, some regular scanf string input, printf output */
   printf( "\nEnter a series of blank-delimited strings... up to 3\n" );
   count = 0;
   while( scanf( "%10s", joe ) == 1 && (count < 3)) /* take in up to 10 chars at a time */
   {
      SHOWSTR( joe ); count++;
      
   }
   fflush( stdin );
   
   /* now, some scanf's with no stored null (%10c) */
   count = 0;
   printf( "\nEnter a series of characters to be stored in string... up to 3\n" );
   strcpy( joe, "**********" );      /* prime joe so you can see overlay */
   while( scanf( "%5c", joe ) == 1 && (count < 3)) /* take in up to 5 chars at a time */
   {
      SHOWSTR( joe );  count++;
   }
   fflush( stdin );
   
   /* now some comma/newline-delimited strings, 20 chars max */
   count = 0;
   printf( "\nEnter a series of strings delimited by commas... up to 3\n" );
   while( scanf( "%20[^,\n]", moe ) >= 1 &&(count <3))
   {
      SHOWSTR( moe );    count++;
      scanf( "%*[,\n]" );
   }
   fflush( stdin );

   /* some whole-line input */
 
   printf( "\nEnter a line of input, no more than 80 chars (please?)\n" );
   gets( line );   /* careful, no bound on length that can be entered! */
   SHOWSTR( line );

   printf( "\nEnter a line of input...\n" );
   fgets( line, sizeof( line ), stdin );
   SHOWSTR( line );

   printf( "\nEnter line(s) of input...\n" );
   while( fgets( moe, sizeof( moe ), stdin ) != NULL )  /* 20 chars max */
   {
      SHOWSTR( moe );
   }

   return( 0 );

}

/* routine to display string contents */
void stro( char * str, int strmax, char *name )
{
   int i;

   printf( "sizeof(%s)=%d, strlen(%s)=%d\n", 
           name, strmax, name, strlen( str ) );
   printf( "contents " );
   for( i = 0; i < strmax; i++ )
   {
      printf( ( ( str[i] < ' ' ) ? "<x%0.2x>" : "<%c>" ), str[i] );
   }
   printf( "\nPrints as <%s>\n\n", str );
}