MOO

MOO, aka MUD, object-oriented, is a programming language created in 1993.

#957on PLDB

31Years Old

83Repos

The MOO programming language is a relatively simple programming language used to support the MOO Server. It is dynamically typed and uses a prototype-based object-oriented system, with syntax roughly derived from the Algol school of programming languages.. Read more on Wikipedia...

MOO Wikipedia page
There are at least 83 MOO repos on GitHub
MOO first developed in University of Waterloo
file extensions for MOO include moo
The Google BigQuery Public Dataset GitHub snapshot shows 23 users using MOO in 23 repos on GitHub
Explore MOO snippets on Rosetta Code
MOO appears in the TIOBE Index
See also: (9 related languages)Scheme, Smalltalk, Self, C, Ada, Multi-User Forth, LPC, Pike, Linden Scripting Language

Example from the web:

@program toy:wind
this.wound = this.wound + 2;
player:tell("You wind up the ", this.name,".");
player.location:announce(player.name, " winds up the ", this.name,".");
.

Example from hello-world:

@program hello:run
player:tell("Hello World");
.

Example from the Hello World Collection:

"Hello World in MOO";

player.location:announce_all("Hello, world!");

Example from Wikipedia:

@program toy:wind
 if (this.location == player)
   if (this.wound < this.maximum)
     this.wound = this.wound + 2;
     player:tell("You wind up the ", this.name,".");
     player.location:announce(player.name, " winds up the ", this.name,".");
     if (this.wound >= this.maximum)
       player:tell("The knob comes to a stop while winding.");
     endif
   else
     player:tell("The ",this.name," is already fully wound.");
   endif
 else
   player:tell("You have to be holding the ", this.name,".");
 endif
 .

Feature	Supported	Token	Example
Strings	✓	"	"Hello world"
Print() Debugging	✓	player:tell
Comments	✓
Semantic Indentation	X

MOO - Programming language

Language features