PapeteCompiler

Papete is the name of my compiler. Written in python using ANTLR4. A project that started as a Compilers course assignment and turned out to be really fun.

The name Papete doesn't really have a meaning aside for inside jokes, but since this is computer science we're talking about, let it be an acronym:

• P.ython3'n
• A.ntlr4
• P.owered
• E.nvironment
• T.ranslation
• E.ngine

Involved in this project

Kaique Alan Gualter dos Santos(me)

Bruno Mendonça dos Santos github page

Installation

You're going to need python3, the only other dependency needed is antlr4. You can install antlr4 using the following command

  pip install antlr4-python3-runtime

on linux you might want to:

  pip3 install antlr4-python3-runtime

Make sure to check their page at pypi.com for further instructions.

Running

Once you have python3 and antlr4. Git clone this project and open a terminal. You can use the following command to execute a fibonacci code sample.

python -m App.main SampleCode/fib.ppte

on linux you might want to:

python3 -m App.main SampleCode/fib.ppte

Syntax Example

! Inner function example;
! Function assignment example;
! Function passed as return example;
func foo(){
    func bar(){
        print("Hello World!");
    };
    return bar;
};

func globalScopeBar = foo();
globalScopeBar();
! [outputs]: Hello World!

! Function as argument example;
! If and else stament example;
func getOne(int a, int b, func selector){
    bool pickVarA = selector(a, b);
    if(pickVarA){
        return a;
    }else{
        return b;
    };
};

! Selector function will be used to determine which
! value to pick;
func selector(int a, int b){
    return a > b;
};

print("Picking between numbers using custom selector: picked = " + getOne(10, 20, selector));
! [outputs]: Picking between numbers using custom selector: picked = 20

More samples can be found on the CodeSamples folder.