/*
 * This program removes comments from the program named on the command line.
 */


#include <stdio.h>

int main (int argc, char *argv[]) {
	char	s[1000];
	int	i, commenting;
	FILE	*f;

	/* open the file named on the command line */

	if (argc != 2) {
		fprintf (stderr, "Usage: %s <filename>\n", argv[0]);
		exit (1);
	}
	f = fopen (argv[1], "r");
	if (!f) {
		perror (argv[1]);
		exit (1);
	}

	/* currently, "commenting" is false, i.e., we're not in a comment */

	commenting = 0;
	for (;;) {
	
		/* get a string from the file */

		fgets (s, 1000, f);

		/* if we're at the end of file, get out of the loop */

		if (feof (f)) break;

		/* for each character in the string... */

		for (i=0; s[i]; i++) {

			/* if we aren't yet commenting and see "/*", 
			 * then begin we know we're starting a comment 
			 */
			if (!commenting && s[i] == '/' && s[i+1] == '*') 
				commenting = 1;

			/* if we're not commenting, print the current char */

			if (!commenting) putchar (s[i]);

			/* if we are currently commenting and see "(you know)",
			 * end commenting and increment i past the / 
			 */
			if (commenting && s[i] == '*' && s[i+1] == '/') {
				commenting = 0;
				i++;
			}
		}
	}
	fclose (f);

	/* if we're still in a comment, warn the user */

	if (commenting) fprintf (stderr, "unfinished comment!\n");

	exit (0);
}