Omgrofl-interpteter

Omgrofl interpreter written in Java

About

This project aims to create a fully-functional interpreter of an esoteric
programming language called Omgrofl. More information on the language itself
can be found here: http://esolangs.org/wiki/Omgrofl

Suggestions or patches are more than welcome.

How it works

The interpreter parses the input source code and transforms it into an abstract
syntax tree. It then traverses the tree and runs each instruction.

Getting started

To compile, run these commands on the command line:

git clone https://github.com/OlegSmelov/omgrofl-interpreter.git
cd omgrofl-interpreter
ant

Run an example:

cd dist
java -jar Omgrofl.jar ../examples/alphabet.omgrofl

Currently supported statements

• Assignment (variable iz variable/value; variable to /dev/null)
• Char output (rofl variable)
• Char input (stfw variable)
• Infinite loop (rtfm … brb)
• For loop (4 variable iz variable/value 2 variable/value … brb)
• Loop break (tldr)
• Comments (w00t)
• Sleep (afk variable/value)
• Program exit (stfu)
• Incrementing / decrementing (lmao/roflmao variable)
• Conditions (wtf variable/value iz (nope) liek/uber variable/value … brb)
• Stack/Queue (n00b/l33t/haxor variable)

Implementation details

• Unassigned variables are treated as nonexistent. If you try to use a variable
  without assigning a value to it first, an exception will be thrown.
• An exception will also be thrown if you try to take a value off the stack when
  the stack is empty.
• On EOF, 255 is returned as the value.
• Indentation and whitespace don’t matter. The only thing that matters is that
  every statement is written on a separate line.
• If there is more than one statement on a line, an exception will be thrown.
  This doesn’t follow the language specification, but I believe this is a good
  decision, because a) honest mistakes will be found faster, and b) people new
  to the language will know if they’ve written anything wrong.

License

MIT (see LICENSE)