/********************************************************
 * print -- format files for printing                   *
 ********************************************************/
#include <iostream.h>
#include <stdlib.h>	

int verbose = 0;   		// verbose mode (default = false) 
char *out_file = "print.out"; 	// output file name 
char *program_name;	 	// name of the program (for errors) 
int line_max = 66; 		// number of lines per page 

/********************************************************
 * do_file -- dummy routine to handle a file            *
 *                                                      *
 * Parameter                                            *
 *      name -- name of the file to print               *
 ********************************************************/
void do_file(char *name)
{
    cout << "Verbose " << verbose << " Lines " << line_max << 
	    " Input " << name << " Output " << out_file << '\n';
}
/********************************************************
 * usage -- tell the user how to use this program and   *
 *              exit                                    *
 ********************************************************/
void usage(void)
{
    cerr << "Usage is " << program_name << " [options] [file-list]\n";
    cerr << "Options\n";
    cerr << "  -v          verbose\n";
    cerr << "  -l<number>  Number of lines\n";
    cerr << "  -o<name>    Set output file name\n";
    exit (8);
}

main(int argc, char *argv[])
{
    // save the program name for future use 
    program_name = argv[0];

    /* 
     * loop for each option.  
     *   Stop if we run out of arguments
     *   or we get an argument without a dash.
     */
    while ((argc > 1) && (argv[1][0] == '-')) {
        /*
         * argv[1][1] is the actual option character.
         */
        switch (argv[1][1]) {
            /*
             * -v verbose 
             */
            case 'v':
                verbose = 1; 
                break;
            /*
             * -o<name>  output file
             *    [0] is the dash
             *    [1] is the "o"
             *    [2] starts the name
             */
            case 'o':
                out_file = &argv[1][2];
                break;
            /*
             * -l<number> set max number of lines
             */
            case 'l':
                line_max = atoi(&argv[1][2]);
                break;
            default:
                cerr << "Bad option " << argv[1] <<'\n';
                usage();
        }
        /*
         * move the argument list up one
         * move the count down one
         */
        ++argv;
        --argc;
    }

    /*
     * At this point all the options have been processed.
     * Check to see if we have no files in the list
     * and if so, we need to list just standard in.
     */
    if (argc == 1) {
        do_file("print.in");
    } else {
        while (argc > 1) {
          do_file(argv[1]);
          ++argv;
          --argc;
        }
    }
    return (0);
}