102. Parse GPS String for Time and Coordinates

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

void parse_gprmc(char *nmea) {
    
    int cur_index=0;
    int read_index=0;
    int word_count=0;
    char table[10][20] = {};
    
    //1. Obtain the comma seperate values and put them into an array
    while(nmea[cur_index]!='\0'){
        if(nmea[cur_index] == ','){
            for(int i=0; i<cur_index-read_index;i++){
                table[word_count][i] = nmea[i+read_index];
            }
            read_index = cur_index+1;
            word_count++;
        }
        cur_index++;
    }
    for(int i=0; i<cur_index-read_index;i++){
        table[word_count][i] = nmea[i+read_index];
    }
    word_count++;

    //2. Format the outputs of the array values
    //2.1 Output time as xx:xx:xx (time is element table[1])
    printf("Time: ");
    for(int j=0;table[1][j]!='\0';j++){
        if(j % 2==0 && j!= 0){
            printf(":%c",table[1][j]); 
        }
        else{
            printf("%c", table[1][j]);
        }
    }

    //2. Output Latitude + Direction 
    printf("\nLatitude: %s %s\n",table[3],table[4]);

    //3. Output Longitude + Direction
    printf("Longitude: %s %s\n",table[5],table[6]);

}

int main() {
    char nmea[100];
    fgets(nmea, sizeof(nmea), stdin);
    parse_gprmc(nmea);
    return 0;
}