Parse GPS String for Time and Coordinates

Code

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

void parse_gprmc(char *nmea) {
    char *fields[7];
    int index=0;
    char *token = strtok(nmea, ",");
    while(token != NULL && index < 7){
        fields[index++] = token;
        token = strtok(NULL, ",");
    }
    char *time = fields[1];
    printf("Time: %.2s:%.2s:%.2s\n",time,time+2,time+4);
    printf("Latitude: %s %s\n",fields[3],fields[4]);
    printf("Longitude: %s %s",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