Arduino dictionary integer to String? - arduino

Question

I have a table in the form of driver start number and driver name. Now I want to determine the driver name based on the start number. Which solution approach can I follow for this?
20 - driver name A
44 - driver name B
4 - driver name C
......
That would be my approach:
String ReturnDriver(int startNumber) {
Switch(startNumber) {
case 20:
{
return "driver name A";
}
break;
case 44:
{
return "driver name B";
}
break;
case 4:
{
return "driver name C";
}
break;
}
}

Answer 1

Would be nice if Arduino had something similar to key/value pair dictionaries. I'm not sure what your data looks like, but I wrote a little function that can emulate key/value pairs using a string of names and numbers:
String getName(int n){
int start = input.indexOf(":",input.indexOf(String(n)));
int end = input.indexOf(",", start++);
if(end < 0) end = input.length();
String value = input.substring(start, end);
value.trim();
return value;
}
You can change the separating character to be whatever you need.
You can write some code to combine the data you have into a string like so:
String input = "20: Driver,"
"4: Name,"
"23: David";
or
String input = "20: Driver, 4: Name, 23: David";
find a name in a string:
Serial.print(getName(4));
> Name
Or if your drivers occupy all positions, just order them in an array:
//each element has an id starting from 0
String name[] = {"Name", "Driver", "David"};
position = 1; //array element 2
Serial.print(name[position]);