Minor code cleanup

The section was somewhat difficult to understand due to nested
conditionals. Modified the workflow to reduce conditionals and transient
variables.

Author: weierophinney

src/Factory.php

@@ -329,29 +329,28 @@ public function createInputFilter($inputFilterSpecification)
             if (($value instanceof InputInterface)
                 || ($value instanceof InputFilterInterface)
             ) {
-                $input = $value;
-            } else {
-
-                // Patch to enable nested, integer indexed input_filter_specs
-                // Check type and name are in spec
-                if (isset($value['type']) && is_string($value['type'])
-                    && isset($value['name']) && is_string($value['name'])) {
-                    // Make sure type is an InputFilter
-                    $checkType = $this->getInputFilterManager()->get($value['type']);
-                    if ($checkType instanceof InputFilter) {
-                        // Only apply when key is an integer
-                        if (is_integer($key)) {
-                            $key = $value['name'];
-                        }
-                        // Remove name from spec. InputFilter doesn't have an name property!
-                        unset($value['name']);
-                    }
+                $inputFilter->add($value, $key);
+                continue;
+            }
+
+            // Patch to enable nested, integer indexed input_filter_specs.
+            // Check type and name are in spec, and that composed type is
+            // an input filter...
+            if ((isset($value['type']) && is_string($value['type']))
+                && (isset($value['name']) && is_string($value['name']))
+                && $this->getInputFilterManager()->get($value['type']) instanceof InputFilter
+            ) {
+                // If $key is an integer, reset it to the specified name.
+                if (is_integer($key)) {
+                    $key = $value['name'];
                 }
 
-                $input = $this->createInput($value);
+                // Remove name from specification. InputFilter doesn't have a
+                // name property!
+                unset($value['name']);
             }
 
-            $inputFilter->add($input, $key);
+            $inputFilter->add($this->createInput($value), $key);
         }
 
         return $inputFilter;