Merge with current github, fix trailing spaces, and tab->space.

--HG--
extra : rebase_source : ad44a915f7c4880ee8f4ffc406e97c8fc142ac82

resources/php-epub-meta/epub.php

@@ -328,6 +328,61 @@ class EPub {
         return $this->getset('dc:description',$description);
     }
 
+    /**
+     * Set or get the book's Unique Identifier
+     *
+     * @param string Unique identifier
+     */
+    public function Uuid($uuid = false)
+    {
+        $nodes = $this->xpath->query('/opf:package');
+        if ($nodes->length !== 1) {
+            $error = sprintf('Cannot find ebook identifier');
+            throw new Exception($error);
+        }
+        $identifier = $nodes->item(0)->attr('unique-identifier');
+
+        $res = $this->getset('dc:identifier', $uuid, 'id', $identifier);
+
+        return $res;
+    }
+
+    /**
+     * Set or get the book's creation date
+     *
+     * @param string Date eg: 2012-05-19T12:54:25Z
+     */
+    public function CreationDate($date = false)
+    {
+        $res = $this->getset('dc:date', $date, 'opf:event', 'creation');
+
+        return $res;
+    }
+
+    /**
+     * Set or get the book's modification date
+     *
+     * @param string Date eg: 2012-05-19T12:54:25Z
+     */
+    public function ModificationDate($date = false)
+    {
+        $res = $this->getset('dc:date', $date, 'opf:event', 'modification');
+
+        return $res;
+    }
+
+    /**
+     * Set or get the book's URI
+     *
+     * @param string URI
+     */
+    public function Uri($uri = false)
+    {
+        $res = $this->getset('dc:identifier', $uri, 'opf:scheme', 'URI');
+
+        return $res;
+    }
+
     /**
      * Set or get the book's ISBN number
      *
@@ -523,7 +578,7 @@ class EPub {
             $isAbsolute = true;
 
         if ($b[0] == "/")
-			throw new InvalidArgumentException("Second path part must not stwar with " . $m_Separator);
+            throw new InvalidArgumentException("Second path part must not start with " . $m_Separator);
 
         $splittedA = split("/", $a);
         $splittedB = split("/", $b);