File indexing completed on 2024-04-28 11:21:06

 #include <stdio.h>
 #include <stdlib.h>
 
 int
 main(argc, argv)
 char **argv;
 {
     register int c;
     int xp;
     int width;
 
     if ( argc != 2 ) {
     fprintf(stderr, "usage: %s width\n", argv[0]);
     exit(1);
     }
     else if ( (width=atoi(argv[1])) < 1 ) {
     fprintf(stderr, "%s: please set width to > 0\n", argv[0]);
     exit(1);
     }
 
 
     for ( xp = 1; (c = getchar()) != EOF; xp++ ) {
     while ( c & 0xC0 ) {
         /* assume that (1) the output device understands utf-8, and
          *             (2) the only c & 0x80 input is utf-8.
          */
         do {
         if ( xp <= width )
             putchar(c);
         } while ( (c = getchar()) != EOF && (c & 0x80) && !(c & 0x40) );
         ++xp;
     }
     if ( c == '\n' )
         xp = 0;
     if ( xp <= width )
         putchar(c);
     }
     exit(0);
 }