gistfile1.js

var body = require('./mailbody');
var fs = require('fs');
var util = require('util');

var b = new body.Body();
b.state = 'headers';

var data = fs.readFileSync('/tmp/multipart.eml', "UTF-8").split(/\n/);

for (var i=0; i < data.length; i++) {
    b.parse_more(data[i] + '\n');
}

console.log(util.inspect(b, true, null));