file program issue

[zinat]

Write your question here.

 B17 -> B19	 [label="{10}"];
B17 -> B21	 [label="{4}"];
B18 -> B19	 [label="{4}"];

Can any one help with the pointer solution to check in file for this -> symbol and one it finds the symbol it should move behind 4 characters and store the string
B17 in an array and then move 4 characters ahead and similarly save B21 likewise for each line do as above..

[zinat]

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


int wc(char* file_path, char* word){
    FILE *fp;
    int count = 0;
    int ch, len;


    if(NULL==(fp=fopen(file_path, "r")))
        return -1;
    len = strlen(word);
    for(;;){
        int i;
        if(EOF==(ch=fgetc(fp))) break;
        if((char)ch != *word) continue;
        for(i=1;i<len;++i){
            if(EOF==(ch = fgetc(fp))) goto end;
            if((char)ch != word[i]){
                fseek(fp, 1-i, SEEK_CUR);
                goto next;
            }
        }
        ++count;
        next: ;
    }
end:
    fclose(fp);
    return count;
}


int main(){//testestest : count 2
    char key[] = "->"; // the string I am searching for
    int wordcount = 0;


    wordcount = wc("test.txt", key);
    printf("%d \n",wordcount);
    return 0;
}

i m able to find the symbol -> but not getting idea how to proceed ahead..

Help..