Changeset 6273 for trunk/wp-includes/feed.php

Timestamp:

10/19/07 15:42:30 (1 year ago)

Author:

westi

Message:

Refactor atom support to share code. Fixes #5181 props rubys

Files:

• trunk/wp-includes/feed.php (modified) (1 diff)

trunk/wp-includes/feed.php

@@ -251 +251 @@
-}
-
+/**
+ * prep_atom_text_construct() - determine if given string of data is
+ * type text, html, or xhtml, per RFC 4287 section 3.1.
+ *
+ * In the case of WordPress, text is defined as containing no markup,
+ * xhtml is defined as "well formed", and html as tag soup (i.e., the rest).
+ *
+ * Container div tags are added to xhtml values, per section 3.1.1.3.
+ *
+ * @package WordPress
+ * @subpackage Feed
+ *
+ * @param string $data input string
+ * @return array $result array(type, value)
+ * @link http://www.atomenabled.org/developers/syndication/atom-format-spec.php#rfc.section.3.1
+ */
+function prep_atom_text_construct($data) {
+    if (strpos($data, '<') === false && strpos($data, '&') === false) {
+        return array('text', $data);
+    }
+
+    $parser = xml_parser_create();
+    xml_parse($parser, '<div>' . $data . '</div>', true);
+    $code = xml_get_error_code($parser);
+    xml_parser_free($parser);
+
+    if (!$code) {
+               if (strpos($data, '<') === false) {
+                   return array('text', $data);
+                       } else {
+                   $data = "<div xmlns='http://www.w3.org/1999/xhtml'>$data</div>";
+                   return array('xhtml', $data);
+                       }
+    }
+
+    if (strpos($data, ']]>') == false) {
+        return array('html', "<![CDATA[$data]]>");
+    } else {
+        return array('html', htmlspecialchars($data));
+    }
+}
+
-?>