ORIGAMI - an Extensible Language Engineering Framework

Currently, under heavy development.

Description

Origami is a language engineering framework that includes ..

• Nez parser generator based on typed parsing expression grammars
• Configurable type checker
• JVM bytecode compiler

License

Origami is distributed under the Apache License 2, meaning that you are completely free to redistribute, modify, or sell it with almost no restrictions.

Maven Usage

Use the following definition to use Origami in your maven project:

<dependency>
  <groupId>blue.origami</groupId>
  <artifactId>origami</artifactId>
  <version>0.0.1</version>
</dependency>

Building

Requirements

• Maven 3+
• Java 8+

Check out and build:

git clone git://github.com/kkuramitsu/origami.git
cd origami
mvn install

Getting started

$ java -ea -jar origami-X.Y.Z-run.jar run
java -ea -jar target/origami-0.0.1-run.jar
ORIGAMI-0.0.1 (Celery) on Java JVM-1.8.0_91
Copyright 2017, Kimio Kuramitsu and ORIGAMI project
Enter an input string to parse and run.
Tips: Start with an empty line for multiple lines.

>>> 
let f n = n + 1

  [#Source [#FuncDecl $name=[#NameExpr 'f'] $param=[# [#LetDecl $name=[#NameExpr 'n']]] $body=[#AddExpr $left=[#NameExpr 'n'] $right=[#IntExpr '1']]]]
>>> f 1
  [#Source [#ApplyExpr $recv=[#NameExpr 'f'] $param=[# [#IntExpr '1']]]]

[Generated] $C0.class size=276
public abstract class $C0 implements origami.ffi.OrigamiObject {
  public static final int f(int);
    descriptor: (I)I
    Code:
       0: iload_0
       1: iconst_1
       2: iadd
       3: ireturn

  public $C0();
    descriptor: ()V
    Code:
       0: aload_0
       1: invokespecial #13                 // Method java/lang/Object."<init>":()V
       4: return
}

 => 2 :int
>>>