LPC

LPC is an object building language created by the author of the original LPMud server, standing for Lars Pensjö C. Structurally, it is much like the more popular programming language C. Designed with LPMud object building specifically in mind, it puts the power of game building in the hand of the general user.

LPMuds allow you to change old objects and add new ones while the game is running.

List of LPC keywords -
for, if, while, switch, case, foreach, int, float, string, void, class, mapping, object, mixed, varargs, nomask, static, private, public, inherit.

Pre-compiler directives are -
#define, #undefine, #include, #ifdef, #ifndef, #if, #elseif, #else, #endif, #pragma.

Finally, a Hello World program in LPC, showing how similar it is to C-

inherit "/std/object.c";

void create()
{
  set_name("object");
  set_id("object");
  set_short("An object");
  set_long("This is an object.  You can push it.\n");
  set_weight(1);
  set_light(1);
  set_value(1);
}

void init()
{
  add_action("do_push","push");
}

int do_push()
{
  write("The object says: Hello world!\n");
  return 1;
}

This may vary from MUD to MUD depending on the Mudlib in use, but this is pretty generic for all LPMUDs.