#include "FileHandler.h"
#include< stddef.h >
void copy(char*, char*);
void append(char*, char*);
void split(char*, char,char**);
int main()
{
    int num[2]={0,0}, i = 0, j = 0,mark;
    char* fileinput = readAllTextFromFile("./input.txt");
    while (*(fileinput + i) != NULL) {
        while (*(fileinput + i) != '\n' && *(fileinput + i) != NULL) {
            if (j < 2) num[j]++; else if (j == 2) mark = i;
            i++;
        }
        i++;
        j++;
    }
    char* str = malloc(num[0] * sizeof(char));
    char* copyed = malloc(num[0] * sizeof(char));
    char* inputappend = malloc(num[1] * sizeof(char));
    char splitchar = *(fileinput + mark);
    char** splitresult = malloc((num[0]+num[1]) * sizeof(char));
    for (i = 0; i < num[0]; i++) {
        *(str + i) = *(fileinput + i);
    }
    *(str + num[0]) = '\0';
    printf("Input string:%s\n\n",str);
    for (i = 0; i < num[1]; i++) {
        *(inputappend + i) = *(fileinput + i+1+ num[0]);
    }
    *(inputappend + num[1]) = '\0';
    printf("append text:%s\n", inputappend);
    copy(str, copyed);
    append(str, inputappend);
    printf("append result:%s\n\n", str);
    printf("original string:%s\n\n", copyed);
    printf("split char:%c\n", splitchar);
    split(str, splitchar,splitresult);
    printf("split resilt:%s\n", splitresult);
    return 0;
}
void copy(char* src, char* dist) {
    int i = 0;
    while (*(src + i) != '\0') {
        *(dist + i) = *(src + i);
        i++;
    }
    *(dist + i) = '\0';
}

//append the text after target.
void append(char* target, char* text) {
    int i = 0,j=0;
    while (*(target + i) != '\0') {
        i++;
    }
    while (*(text+ j) != '\0') {
        j++;
    }
    target=realloc(target, (i + j) * sizeof(char));
    for (int k = 0; k < j; k++) {
        *(target + i + k) = *(text + k);
    }
    *(target + i + j) = '\0';
}

//split src string by target,  then output by segments.
void split(char* src, char target,char** segments) {

}