Note:
test document note
     2nd line
Example:
import std.stdio;   //&
writeln("Hello world!");
if (test) {
  writefln("D programming language");
}
    algorithm;
xxx;    //comment
    yyy;
/* test
 * comment
 */
// Create MIME Base64 with CRLF, per line 76.
File f = File("./text.txt", "r");
uint line = 0;
// The ElementType of data is not aggregation type
foreach (encoded; Base64.encoder(data))
wstring ws;
transcode("hello world",ws);
    // transcode from UTF-8 to UTF-16
Example:
import std.stdio;   //&
writeln("Hello world!");
if (test) {
  writefln("D programming language");
}
    algorithm;
xxx;    //comment
    yyy;
/+ test
 + comment
 +/
#!/usr/bin/env rdmd
// Computes average line length for standard input.
import std.stdio;
writefln(q"EOS
This
is a multi-line
heredoc string
EOS"
);