How to read numbers out of a file in c

Hi,
I have a file that is a mixture of integers and words all strung together with spaces. It is a score for a bowling game it looks like "8 split 1 9 1 spare 7 2 10 strike 8 2 spare 6 split 2 7 3 spare 10 strike 10 strike 10 turkey 8 1" I am trying to figure out how to read the just the numbers out of the file and then rewrite them into another file.

I started with opening the original file and using sscanf to store the values in an array. Will this work with the way the file is formatted right now?

Thanks

You could read it "word by word" (whether that word is something like "split" or something like "8") using scanf with the %s format and then test the first character to see if it's between '0' and '9' inclusive. If it is, convert it to a number with atoi(), otherwise ignore it.

Better use strtok(), since the position of numbers and strings in the input file is arbitrary.
After reading each token from the file, verify with isdigit() if it is a number or not.
If the token is a number, then it gets written to another file or thrown away.

I don't think strtok is necessary. You can read the data straight from the file with fscanf using the %s format since it skips spaces automatically. Something like:

Code:

---

    char token[100];
    // ...
    while (fscanf(f, "%s", token) == 1) {
        if (isdigit(token[0])) {
            int n = atoi(token);
            printf("Number: %d\n", n);
        }else
            printf("Word: %s\n", token);
    }

---

Or if you had the data in a string, you could use sscanf the same way.