We all new that the underscore (‘_’) was a valid character in C# identifiers but what I didn’t know is that it is legitimate to have nothing but underscore characters. I found this out while doing some code generation and identifier scrubbing. By that I mean if you are trying to create class names or namespaces based on user input you have to scrub out invalid characters and I chose to replace them with underscores.
I decided to mess around with this and I came up with a quick Morse Code API based on my misuse of underscore identifiers.
// SOSConsole.WriteLine("Transmitting: SOS");
Morse.Code._._._.o.___.___.___.o._._._.Play();
| Symbol | Name |
| ._ | dit |
| .___ | dah |
| .o. | Letter |
| .ooooo. | Word |
So, SOS above is “dit dit dit, dah dah dah, dit dit dit”. It plays by using Console.Beep and letter and word boundaries use Thread.Sleep. Here’s a more complicated example taken from wikipedia!
Console.WriteLine("Transmitting: Morse Code");
Morse.Code.
// 1 2 3 4 5 6 7 8
//12345678901234567890123456789012345678901234567890123456789012345678901234567890123456789
//M------ O---------- R------ S---- E C---------- O---------- D------ E
//===.===...===.===.===...=.===.=...=.=.=...=.......===.=.===.=...===.===.===...===.=.=...=
___.___.o.___.___.___.o._.___._.o._._._.o._.ooooo.___._.___._.o.___.___.___.o.___._._.o._
// ^ ^ ^ ^ ^
// | dah dit | |
// symbol space letter space word space.Play();
It actually sounds pretty good!
Download:
