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-rw-r--r--inc/3rdparty/htmlpurifier/HTMLPurifier/ChildDef/Optional.php45
1 files changed, 45 insertions, 0 deletions
diff --git a/inc/3rdparty/htmlpurifier/HTMLPurifier/ChildDef/Optional.php b/inc/3rdparty/htmlpurifier/HTMLPurifier/ChildDef/Optional.php
new file mode 100644
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--- /dev/null
+++ b/inc/3rdparty/htmlpurifier/HTMLPurifier/ChildDef/Optional.php
@@ -0,0 +1,45 @@
1<?php
2
3/**
4 * Definition that allows a set of elements, and allows no children.
5 * @note This is a hack to reuse code from HTMLPurifier_ChildDef_Required,
6 * really, one shouldn't inherit from the other. Only altered behavior
7 * is to overload a returned false with an array. Thus, it will never
8 * return false.
9 */
10class HTMLPurifier_ChildDef_Optional extends HTMLPurifier_ChildDef_Required
11{
12 /**
13 * @type bool
14 */
15 public $allow_empty = true;
16
17 /**
18 * @type string
19 */
20 public $type = 'optional';
21
22 /**
23 * @param array $children
24 * @param HTMLPurifier_Config $config
25 * @param HTMLPurifier_Context $context
26 * @return array
27 */
28 public function validateChildren($children, $config, $context)
29 {
30 $result = parent::validateChildren($children, $config, $context);
31 // we assume that $children is not modified
32 if ($result === false) {
33 if (empty($children)) {
34 return true;
35 } elseif ($this->whitespace) {
36 return $children;
37 } else {
38 return array();
39 }
40 }
41 return $result;
42 }
43}
44
45// vim: et sw=4 sts=4