"use strict";
var expect = require('expect.js');
var Data = require('./data.js');
var List = require('./list.js');"use strict";
var expect = require('expect.js');
var Data = require('./data.js');
var List = require('./list.js');var Pair = require(‘./pair.js’);
const Pprinter = {
print: (data) => {
return Data.type(data,{
pair: () => {
return data.match({
empty: () => {
return "()";
},
cons: (l, r) => {
var left = Pprinter.print(l);
var right = Pprinter.print(r);
return "(" + left + "," + right + ")";
}
});
},
list: () => {
return data.match({
empty: () => {
return "[]";
},
cons: (head, tail) => {
return "[" + List.foldr(data)("nil")((item) => {
return (accumulator) => {
return Pprinter.print(item) + "," + accumulator;
};
}) + "]";
}
});
},
number: (data) => {
return data;
},
string: (data) => {
return data;
}
});
}
};
module.exports = Pprinter