/* Basic C implementation of "wc -w" */

#include <ctype.h>
#include <stdio.h>

int exitstatus = 0;

void wc(char *filename) {
    FILE *fp;
    int ch;
    int was_white = 1;
    int words = 0;

    if (!(fp = fopen(filename, "r"))) {
        fprintf(stderr, "%s: can't read\n", filename);
        exitstatus = 1;
        return;
    }

    while ((ch = fgetc(fp)) != EOF) {
        if (isspace(ch)) {
            was_white = 1;
        } else {
            if (was_white)
                words++;
            was_white = 0;
        }
    }

    fclose(fp);

    printf("%d\t%s\n", words, filename);
}

int main(int argc, char **argv) {
    int i;

    if (argc < 2) {
        fprintf(stderr, "usage: wc FILE...\n");
        return 1;
    }

    for (i = 1; i < argc; i++)
        wc(argv[i]);

    return exitstatus;
}