node.js kml to json converter

kml2json.js

var sax = require('sax');

var saxStream = sax.createStream(true, {
    lowercase: true
});

var layout = {};

saxStream.on('error', function() {
    console.log('error', arguments);
    process.exit(1);
});

var isCoordinates = false;

saxStream.on('opentag', function(tag) {
    if (tag.name === 'coordinates') {
        isCoordinates = true;
    }
}).on('text', function(text) {
    if (isCoordinates) {
        var result = text.trim().split(' ').map(function(point) {
            var arr = point.split(',').slice(0, 2).map(parseFloat),
                tmp = arr[0];
            arr[0] = arr[1];
            arr[1] = tmp;

            return arr;
        });

        console.log(JSON.stringify(result));

        process.exit(0);
    }
});

require('fs').createReadStream(process.argv[2]).pipe(saxStream);