import std.array: empty;
import std.string: replace;

void main() {
    // String creation (destruction is usually handled by
    // the garbage collector)
    ubyte[] str1;

    // String assignments
    str1 = cast(ubyte[])"blah";
    // hex string, same as "\x00\xFB\xCD\x32\xFD\x0A"
    // whitespace and newlines are ignored
    str1 = cast(ubyte[])x"00 FBCD 32FD 0A";

    // String comparison
    ubyte[] str2;
    if (str1 == str2) {} // strings equal

    // String cloning and copying
    str2 = str1.dup; // copy entire string or array

    // Check if a string is empty
    if (str1.empty) {} // string empty
    if (str1.length) {} // string not empty
    if (!str1.length) {} // string empty

    // Append a ubyte to a string
    str1 ~= x"0A";
    str1 ~= 'a';

    // Extract a substring from a string
    str1 = cast(ubyte[])"blork";
    // this takes off the first and last bytes and
    // assigns them to the new ubyte string
    // This is just a light slice, no string data copied
    ubyte[] substr = str1[1 .. $-1];

    // Replace every occurrence of a ubyte (or a string)
    // in a string with another string
    str1 = cast(ubyte[])"blah";
    replace(cast(char[])str1, "la", "al");

    // Join strings
    ubyte[] str3 = str1 ~ str2;
}