morse

#!/usr/bin/java --source 25

void main(String... args) {
    var input = String.join(" ", args).trim();
    if (input.isEmpty()) {
        IO.println("");
        return;
    }
    IO.println(toMorse(input));
}

static String toMorse(String text) {
    var sb = new StringBuilder();
    var first = true;
    for (char c : text.toUpperCase().toCharArray()) {
        String code = switch (c) {
            case 'A' -> ".-"; case 'B' -> "-..."; case 'C' -> "-.-."; case 'D' -> "-..";
            case 'E' -> "."; case 'F' -> "..-."; case 'G' -> "--."; case 'H' -> "....";
            case 'I' -> ".."; case 'J' -> ".---"; case 'K' -> "-.-"; case 'L' -> ".-..";
            case 'M' -> "--"; case 'N' -> "-."; case 'O' -> "---"; case 'P' -> ".--.";
            case 'Q' -> "--.-"; case 'R' -> ".-."; case 'S' -> "..."; case 'T' -> "-";
            case 'U' -> "..-"; case 'V' -> "...-"; case 'W' -> ".--"; case 'X' -> "-..-";
            case 'Y' -> "-.--"; case 'Z' -> "--..";
            case '0' -> "-----"; case '1' -> ".----"; case '2' -> "..---"; case '3' -> "...--";
            case '4' -> "....-"; case '5' -> "....."; case '6' -> "-...."; case '7' -> "--...";
            case '8' -> "---.."; case '9' -> "----.";
            case ' ' -> "/";
            case '.' -> ".-.-.-"; case ',' -> "--..--"; case '?' -> "..--.."; case '!' -> "-.-.--";
            case ':' -> "---..."; case ';' -> "-.-.-."; case '(' -> "-.--."; case ')' -> "-.--.-";
            case '"' -> ".-..-."; case '\'' -> ".----."; case '@' -> ".--.-."; case '&' -> ".-...";
            default -> "?";
        };
        if (!first) sb.append(' ');
        sb.append(code);
        first = false;
    }
    return sb.toString();
}