/* cat8.c -- Convert TAB into Space to Simulate 8-Col Tab-Stops  */
/*           assuming that EUC 2-byte code occupies 2-Cols space */
/*           and even a Control code occupies 1-Col space        */
#include <stdio.h>
#include <stdlib.h>

main(int argc, char *argv[])
{   int c, n=0;
    FILE *fp;
    if (argc == 1) fp = stdin;
    else if ((fp=fopen(argv[1],"r")) == NULL)
        { fprintf(stderr, "file %s not found\n", argv[1]); exit(1); }
    while ((c=getc(fp)) != EOF) {
        if (c == '\t') do { putchar(' '); n++; } while (n % 8);
        else { putchar(c); n++; if ((c=='\r') || (c=='\n')) n = 0; }
    }
    if (fp != stdin) fclose(fp);
}