rewrite

index.js

@@ -1,70 +1,44 @@
 /*
-* docuri
+* docuri: Rich document ids for CouchDB.
 *
 * Copyright (c) 2014 null2 GmbH Berlin
 * Licensed under the MIT license.
 */
 
-exports.parse = function(str) {
-  str = str || '';
+// type/id/subtype/index/version
+var PARTS = ['type', 'id', 'subtype', 'index', 'version'];
 
-  var obj = {};
-  var parts = str.split('/');
 
-  var type = parts.shift();
-  var id = parts.shift();
-  var subtype = parts.shift();
-  var index = parts.shift();
-  var version = parts.shift();
+exports.parse = function(str) {
+  str = str || '';
 
-  if (type) obj.type = type;
-  if (id) obj.id = id;
-  if (subtype) obj.subtype = subtype;
-  if (index) obj.index = index;
-  if (version) obj.version = version;
+  return str.split('/').reduce(function(obj, value, i) {
+    if (value) {
+      obj[PARTS[i]] = value;
+    }
 
-  return obj;
+    return obj;
+  }, {});
 };
 
 exports.stringify = function(obj) {
   obj = obj || {};
 
-  var parts = [];
-  if (typeof obj.type !== 'undefined') {
-    parts.push(obj.type);
-  } else {
-    if (obj.id || obj.subtype || obj.version || obj.index) parts.push('');
-  }
-
-  if (typeof obj.id !== 'undefined') {
-    parts.push(obj.id);
-  } else {
-    if (obj.subtype || obj.version || obj.index) parts.push('');
-  }
-
-  if (typeof obj.subtype !== 'undefined') {
-    parts.push(obj.subtype);
-  } else {
-    if (obj.version || obj.index) parts.push('');
-  }
-  
-  if (typeof obj.index !== 'undefined') {
-    parts.push(obj.index);
-  } else {
-    if (obj.version) parts.push('');
-  }
-
-  if (typeof obj.version !== 'undefined') parts.push(obj.version);
-
-  return parts.join('/');
+  return PARTS.map(function(part) {
+    return typeof obj[part] === 'undefined' ? '' : obj[part];
+  }).join('/').replace(/\/+$/, '');
 };
 
 exports.merge = function(str, objToMerge) {
+  objToMerge = objToMerge || {};
+
   var obj = exports.parse(str);
-  for (var prop in objToMerge) {
-    if (['type', 'id', 'subtype', 'index', 'version'].indexOf(prop) > -1) {
-      obj[prop] = objToMerge[prop];
+
+  PARTS.forEach(function(part) {
+    if (objToMerge[part]) {
+      obj[part] = objToMerge[part];
     }
-  }
+  });
+
   return exports.stringify(obj);
 };

package.json

@@ -1,6 +1,6 @@
 {
   "name": "docuri",
-  "version": "2.0.0",
+  "version": "2.0.1",
   "description": "Rich document ids for CouchDB",
   "main": "index.js",
   "scripts": {