Parse GPS String for Time and Coordinates

Code

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

void parse_gprmc(char *nmea) {
    // Your logic here
    /* 0 gprmc
    1 time
    2 status
    3 lat
    4 ns
    5 long
    6 ew */
    char *fields[7];
    int i = 0;
    char *help = strtok(nmea, ",");
    while(help != NULL){
        fields[i++] = help;
        help = strtok(NULL, ",");
    }
    char *t = fields[1];
    printf("Time: %.2s:%.2s:%.2s\nLatitude: %s %s\nLongitude: %s %s", t, t+2, t+4, fields[3], fields[4], fields[5], fields[6]);
}

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

Solving Approach

 

 

 

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Input

$GPRMC,123519,A,4807.038,N,01131.000,E

Expected Output

Time: 12:35:19 Latitude: 4807.038 N Longitude: 01131.000 E