CouchDB Map function to output object key paths

map.js

function(doc) {
var process = function (item, keyPath) {
if (typeof(item) === 'object' && !isArray(item)) {
	for (var i in item) {
		newPath = keyPath.slice();
		newPath.push(i);
		process(item[i], newPath);
	}
}
else {
	emit(keyPath);
}
}


process(doc, []);

}