/*
 * fmt: format stdin to 80 columns.
 */
#include <stdio.h>
#include <ctype.h>

#define	WIDTH	78
#define	MAXWORD	160

int curcol=0;

/*
 * format in the flesh
 */
main()
{
    char word[MAXWORD];

    while (fscanf(stdin, "%s", word) > 0) {
	if (curcol > 0)	/* don't do anything special for start of line */
	    if (curcol + strlen(word) >= WIDTH) {
		/*
		 * if this word will make the screen wrap, kick out a
		 * newline first.
		 */
		curcol = 0;
		putchar('\n');
	    }
	    else {
		/*
		 * otherwise just drop a space in front of the word
		 */
		putchar(' ');
		curcol++;
	    }
	/*
	 * put the word and update curcol.  If the word was longer than
	 * WIDTH, we dump it straight and hope that the tty will wrap.
	 *
	 */
	fputs(word, stdout);
	curcol += strlen(word);
    }
    /*
     * drop out a newline at the end (if we were in the middle of a
     * line when we ran out of input.
     */
    if (curcol > 0)
	putchar('\n');
} /* fmt */