Arduino morse code blink

morse

//This isn't quite working yet.

int led = 13; //led is on pin 13
String text = "Hello World!";
int basetime = 100;
int pause = basetime;
int shortgap = basetime * 3;
int mediumgap = basetime * 7 - pause;

String translatetext(char character) {
  switch (character) {
    case 'a':
      return ".-";
    case 'b':
      return "-...";
    case 'c':
      return "-.-.";
    case 'd':
      return "-..";
    case 'e':
      return ".";
    case 'f':
      return "..-.";
    case 'g':
      return "--.";
    case 'h':
      return "....";
    case 'i':
      return "..";
    case 'j':
      return ".---";
    case 'k':
      return "-.-";
    case 'l':
      return ".-..";
    case 'm':
      return "--";
    case 'n':
      return "-.";
    case 'o':
      return "---";
    case 'p':
      return ".--.";
    case 'q':
      return "--.-";
    case 'r':
      return ".-.";
    case 's':
      return "...";
    case 't':
      return "-";
    case 'u':
      return "..-";
    case 'v':
      return "...-";
    case 'w':
      return ".--";
    case 'x':
      return ".--";
    case 'y':
      return "-.--";
    case 'z':
      return "--..";
    case '0':
      return "-----";
    case '1':
      return ".----";
    case '2':
      return "..---";
    case '3':
      return "...--";
    case '4':
      return "....-";
    case '5':
      return ".....";
    case '6':
      return "-....";
    case '7':
      return "--...";
    case '8':
      return "---..";
    case '9':
      return "-----.";
    case '.':
      return ".-.-.-";
    case ',':
      return "--..--";
    case '?':
      return "..--..";
    case '\'':
      return ".----.";
    case '!':
      return "-.-.--";
    case '/':
      return "-..-.";
    case '(':
      return "-.--.";
    case ')':
      return "-.--.-";
    case '&':
      return ".-...";
    case ':':
      return "---...";
    case ';':
      return "-.-.-.";
    case '=':
      return "-...-";
    case '+':
      return ".-.-.";
    case '-':
      return "-...-";
    case '_':
      return "..--.-";
    case '"':
      return ".-..-.";
    case '$':
      return "...-..-";
    case '@':
      return ".--.-.";
    case '\0':
      return "...-.-"; //end of transmission
    default:
      return "········"; //error code  
  }
}

void texttomorse(String text) {
  int i = 0;
  while(text) {
    Serial.println(text);
    if (text[i] != ' ') {
      String code = translatetext(text[i]);
      displaymorse(code);
      digitalWrite(led, LOW);
      delay(pause);
    } else {
      delay(mediumgap);
    }
    i++;
  }
}

void displaymorse(String code) {
  Serial.println(code);
  int i = 0;
  while(code) {
    if(code[i] == '.') {
      digitalWrite(led, HIGH);
      delay(pause);
    } else {
      digitalWrite(led, HIGH);
      delay(shortgap);
    }  
  }
  digitalWrite(led, LOW);
  delay(pause);
}

void setup() {
  pinMode(led, OUTPUT); //set as output
  Serial.begin(9600);
  while (!Serial) {
    ; // wait for serial port to connect. Needed for Leonardo only
  }
}

void loop() {
  digitalWrite(led, LOW);
  texttomorse(text);
}