#include <string.h>
#include <stdlib.h>

int
strarr_size(char **arr, int len) {
    int i = 0;
    int size = 0;
    while (i < len) {
        size += sizeof(char)*strlen(arr[i]);
        i++;
    }
    return size;
}

int
seqcount(char *str, char *seq) {
    int count;
    int seqlen = strlen(seq);

    int i = 0;
    char *cmpstart;
    while (i < strlen(str) && strlen(cmpstart)) {
        char *cmp = malloc(sizeof(char)*seqlen);
        cmpstart = str+i;
        strncat(cmp, cmpstart, seqlen);

        if (strcmp(cmp, seq) == 0) {
            count++;
        }

        i++;
    }

    return count;
}

int
strsplit(char *str, char *splseq, char **parts) {
    int nparts = 0;
    int c = 0;
    int i = 0;

    int len = strlen(str);
    int seqlen = strlen(splseq);

    char *splcmp;
    char *cmpstart;

    char *part;
    void *partptr;

    while (i < len) {
        splcmp = (char *) malloc(sizeof(char)*strlen(splseq));
        cmpstart = str+c;
        strncat(splcmp, cmpstart, seqlen);

        int equal;

        if ((equal = strcmp(splcmp, splseq)) == 0 || i == len-1) {
            partptr = malloc(sizeof(char)*(c+1));
            if (partptr == NULL)
                return -1;
            else
                part = partptr;

            strncat(part, str, c);
            parts[nparts] = part;

            str += c+1;

            c = 0;
            nparts++;
        }

        i++;
        c++;
    }

    free(splcmp);
    return nparts;
}