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/********************************************************
* print -- format files for printing *
********************************************************/
#include <stdio.h>
#include <stdlib.h> /* ANSI Standard only */
int verbose = 0; /* verbose mode (default = false) */
char *out_file = "print.out"; /* output filename */
char *program_name; /* name of the program (for errors) */
int line_max = 66; /* number of lines per page */
main(int argc, char *argv[])
{
void do_file(char *); /* print a file */
void usage(void); /* tell user how to use the program */
/* 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:
(void)fprintf(stderr,"Bad option %s\n", argv[1]);
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 process just standard in.
*/
if (argc == 1) {
do_file("print.in");
} else {
while (argc > 1) {
do_file(argv[1]);
argv++;
argc--;
}
}
return (0);
}
/********************************************************
* do_file -- dummy routine to handle a file *
* *
* Parameter *
* name -- name of the file to print *
********************************************************/
void do_file(char *name)
{
(void)printf("Verbose %d Lines %d Input %s Output %s\n",
verbose, line_max, name, out_file);
}
/********************************************************
* usage -- tell the user how to use this program and *
* exit *
********************************************************/
void usage(void)
{
(void)fprintf(stderr,"Usage is %s [options] [file-list]\n",
program_name);
(void)fprintf(stderr,"Options\n");
(void)fprintf(stderr," -v verbose\n");
(void)fprintf(stderr," -l<number> Number of lines\n");
(void)fprintf(stderr," -o<name> Set output filename\n");
exit (8);
}
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