Fix for issue #4 -- nested callbacks with same index key

.gitignore

@@ -0,0 +1,2 @@
+dict
+node_modules

README.md

@@ -1,7 +1,7 @@
 wordpos
 =======
 
-wordpos is a set of part-of-speech utilities for Node.js using [natural's](http://github.com/NaturalNode/natural) WordNet module.
+wordpos is a set of part-of-speech (POS) utilities for Node.js using [natural's](http://github.com/NaturalNode/natural) WordNet module.
 
 
 ## Usage
@@ -353,4 +353,4 @@ License
 
 (The MIT License)
 
-Copyright (c) 2012, mooster@42at.com
+Copyright (c) 2012, 2014 mooster@42at.com

package.json

@@ -3,7 +3,7 @@
   "author": "Moos <mooster@42at.com>",
   "keywords": ["natural", "language", "wordnet", "pos"],
   "description": "wordpos is a set of part-of-speech utilities for Node.js using natural's WordNet module.",
-  "version": "0.1.8",
+  "version": "0.1.9",
   "homepage": "https://github.com/moos/wordpos",
   "engines": {
     "node": ">=0.6"

spec/wordpos_spec.js

@@ -182,7 +182,6 @@ describe('options passed to constructor', function() {
 });
 
 describe('profile option', function() {
-
   var wp = new WordPOS({profile : true});
 
   it('should return time argument for isX()', function(done){
@@ -223,5 +222,23 @@ describe('profile option', function() {
 });
 
 
+describe('nested callbacks on same index key', function() {
+  var wp = new WordPOS(),
+    word1 = 'head',
+    word2 =  word1 + 'er';
+
+  it('should call inner callback', function(done){
+    wp.getPOS(word1, function(result) {
+      expect(result.nouns[0]).toEqual(word1);
+
+      // inner call on word2
+      wp.getPOS(word2, function(result) {
+        expect(result.nouns[0]).toEqual(word2);
+        done();
+      });
+    });
+  });
+});
+
 function noop(){}
 

src/fastIndex.js

@@ -28,7 +28,8 @@ function loadFastIndex(dir, name) {
     data = JSON.parse( fs.readFileSync(jsonFile,'utf8') );
     //console.log('loaded %d buckets for %s', data.stats.buckets, data.name);
   } catch(e) {
-    console.error('Error with fast index file %s\n  ', jsonFile, e);
+    console.error('Error with fast index file. Try reinstalling from npm!');
+    throw e;
   }
   return data;
 }
@@ -94,7 +95,13 @@ function find(search, callback) {
         return line.substring(0,line.indexOf(' '));
       });
 
-    readCallbacks[key].forEach( test );
+    // live access callbacks cache in case nested cb's
+    // add to the array.
+    while (readCallbacks[key].length) {
+      test(readCallbacks[key].shift());
+    }
+
+    // now done - delete cb cache
     delete readCallbacks[key];
 
     if (--self.refcount == 0) {