Extracting info from string

I have a string containing '|' delimiters which is like :

Testing|1|2|3|4

What I want to do is to extract the data in between the delimiters respectively.
The problem is i do not know how many '|' are in between...

and assuming i do not know how many delimiters there are, how do i detect the number of '|' or does anyone know a way around this?

You can use strtok() for the same. Look up the man pages.

Anoop.

strtok is okay as long as you don't have to worry about concurrency or nested calls. In those cases strtok will fail miserably. Some libraries have a strtok_r that is reentrant, but I've found that it's easier just to follow in the footsteps of argc and argv:

Code:

---

/* Warning: Ugly code follows. Sorry, written in haste. */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

int makeargv(char *plist, char ***argv, char *delim)
{
    char  *pos = plist;
    size_t dlen = strlen(delim);
    int    argc = 0;
    int    i;

    /* Count args */
    while ((pos = strstr(pos, delim)) != NULL) {
        argc++;
        pos += dlen;
    }

    if ((*argv = malloc((argc + 1) * sizeof **argv)) == NULL)
        return -1;

    for (i = 0, pos = plist; i < argc; i++, plist = pos + dlen) {
        pos = strstr(plist, delim);

        if (((*argv)[i] = calloc((pos - plist) + 1, sizeof (*argv)[i])) == NULL) {
            while (--i >= 0)
                free((*argv)[i]);
            free(*argv);

            return -1;
        }

        strncpy((*argv)[i], plist, pos - plist);
    }

    /* Last token */
    if (((*argv)[i] = calloc(strlen(plist) + 1, sizeof (*argv)[i])) == NULL) {
        while (--i >= 0)
            free((*argv)[i]);
        free(*argv);

        return -1;
    }

    strcpy((*argv)[i++], plist);
    (*argv)[i] = NULL;

    return argc + 1;
}

int main(void)
{
    char **argv;
    char test[] = "Testing|1|2|3|4";
    int  argc;
    int  i;

    /* Using makeargv */
    if ((argc = makeargv(test, &argv, "|")) != -1) {
        for (i = 0; i < argc; i++) {
            puts(argv[i]);
            free(argv[i]);
        }

        free(argv);
    }

    return 0;
}

---

oops, entered wrong board, message deleted. Sorry.