Package "transpiler"

Title:	A universal translator for programming languages
Rating:	Not rated. Create the first rating!
Latest version:	0.1
SHA1 sum:	feba96c898365107f24e690cbf0ad9b30e6ede94
Author:	Anderson Green <jarble@gmail.com>
Maintainer:	Anderson Green <jarble@gmail.com>
Packager:	Anderson Green <jarble@gmail.com>
Home page:	https://github.com/jarble/transpiler/
Download URL:	https://github.com/jarble/transpiler/archive/v0.1.zip

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Details by download location

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Universal-transpiler

Universal-transpiler is a source-to-source compiler that translates a subset of most programming languages into several others.

The original version of this translator was written in JavaScript, but [a better version has been written in Prolog](universal-transpiler.pl).

This is some JavaScript code:

function add(a,b){
        var g = [3,4,5];
        return a+b+(g[0])+(g.length);
}

function divide(a,b){
        return a/b;
}

and this is the Java code that it generates:

public static int add(int a,int b){
        int[] g={3,4,5};
        return a+b+(g[0])+(g.length);
}

public static int divide(int a,int b){
        return a/b;
}

#How to use this translator

Install the package by typing pack-install(transpiler) in the SWI-Prolog console. Now, you can use the translator to convert JavaScript source code into Lua:

:- use_module(library(transpiler)).
:- set_prolog_flag(double_quotes,chars).
:- initialization(main).

main :- translate('function add(a,b){return a + b;}',lua,X),writeln(X).

#How to extend the translator

A limited number of translation rules are provided here, but you can easily add your own rules to universal-transpiler.pl. This is a simplified version of one of its translation rules, implementing the sine function:

%The type of this expression is double.
parentheses_expr(Data,double,sin(Var1_)) -->
{
                %The parameter of the sine function can be an integer or double.
                Var1 = expr(Data,double,Var1_)
        },
langs_to_output(Data,sin,[
['java','javascript']:
        ("Math",ws,".",ws,"sin",ws,"(",ws,Var1,ws,")"),
['lua','python']:
        ("math",python_ws,".",python_ws,"sin",python_ws,"(",python_ws,Var1,python_ws,")"),
]).

Contents of pack "transpiler"

Pack contains 14 files holding a total of 1.0M bytes.