1 files changed, 18 insertions, 0 deletions
diff --git a/classes/iterators/IsisNormalItemFilterIterator.php b/classes/iterators/IsisNormalItemFilterIterator.php
new file mode 100644
index 0000000..e59d7c6
--- /dev/null
+++ b/classes/iterators/IsisNormalItemFilterIterator.php
@@ -0,0 +1,18 @@
+<?php
+
+/**
+ * Isis normal subfield iterator. Filter out special subfields.
+ */
+class IsisNormalItemFilterIterator extends FilterIterator {
+
+  /**
+   * Filter out special subfields.
+   */
+  public function accept()
+  {
+    $field = $this->getInnerIterator()->field;
+    $class = $this->getInnerIterator()->class;
+    $item  = $this->getInnerIterator()->current();
+    return !$class->specialItem($field, $item);
+  }
+}