strtok

help!? I think i'm retarded because I can't figure this out. I'm reading in the input at a prompt and I need to break it up.

I'm using:

while((scanf("%s", inputstr))

to read in the string. Then I want to use strtok to break up inputstr by looking for spaces. I need the first one to go into a variable and the rest to go into an array. Can someone guide me? I've looked at examples of strtok and they don't make sense. If someone knows of a different way, I'd be up for that too.

Try using fgets to read a whole line

scanf("%s"
breaks the input into space delimited words to start with, so trying to strtok the result of that is a waste of time

> while((scanf("%s", inputstr))
And this is quite the most dangerous use of scanf used I've seen for some time.

yeah, but I'm not reading from a file. How do I get fgets to read from stdin??

if scanf seperates the input already, how do i say for instance:

var1 = first word scanned
array[0] = second word scanned
array[1] = third word scanned
etc....

and there is more to the while statement, so it's not entirely scary.

i guess what i'm trying to say is, I have to read the string all at once. I can't keep reading it. I need to read it in, seperate it and then deal with it. I'm working on my own shell.

Quote:

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Originally posted by ober5861
How do I get fgets to read from stdin??

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Code:

---

#include <stdio.h>
int main(void)
{
        char name[10];
       
        if (fgets(name, sizeof(name),stdin))
                printf("%s", name);
        return(0);
}

---

Comments?

> and there is more to the while statement, so it's not entirely scary.
Except for the fact that it will never exit

If it succeeds in assigning a string, it will return 1 (and the while loop will evaluate this as true)

If it fails, it will return EOF, and the while loop will also regard this as being true

i have a conditional statement later in the loop that checks for a string "exit" and if that is typed in, the loop exits, and conseqently so does the program.

Incidently, this isn't working at the moment, but I think i just have to cut the input down to what is actually typed in and it should be fine.