/* struk prog ue08
#4
Suche nach Teilzeichenkette */

#include<stdlib.h>
#include<stdio.h>

char text[] = "dieses da ist es";
char pattern[] = "es";

int countlength(char inputstring[]) {
    char pos = inputstring[0];
    int length = 0;
    while(pos != '\0') {
        ++length;
        pos = inputstring[length];
        }
    return length;
}

int main (int argc, char * argv[]) {
    int textlength=countlength(text);
    int ipos = textlength-1;
    int counter = 0;
    while (ipos > 0) {
        if ((text[ipos] == pattern[0]) && (text[ipos+1] == pattern[1])) {
            ++counter; // könnte man ausgeben, wie oft es gematched hat..
            printf("%d \n",ipos);
            --ipos;
        }
        --ipos;
    }
    return 0;
}