-} # function wp_kses_html_error
-
-function wp_kses_bad_protocol_once($string, $allowed_protocols)
-###############################################################################
-# This function searches for URL protocols at the beginning of $string, while
-# handling whitespace and HTML entities.
-###############################################################################
-{
- return preg_replace('/^((&[^;]*;|[\sA-Za-z0-9])*)'.'(:|:|&#[Xx]3[Aa];)\s*/e', 'wp_kses_bad_protocol_once2("\\1", $allowed_protocols)', $string);
-} # function wp_kses_bad_protocol_once
-
-function wp_kses_bad_protocol_once2($string, $allowed_protocols)
-###############################################################################
-# This function processes URL protocols, checks to see if they're in the white-
-# list or not, and returns different data depending on the answer.
-###############################################################################
-{
+}
+
+/**
+ * wp_kses_bad_protocol_once() - Sanitizes content from bad protocols and other characters
+ *
+ * This function searches for URL protocols at the beginning of $string,
+ * while handling whitespace and HTML entities.
+ *
+ * @since 1.0.0
+ *
+ * @param string $string Content to check for bad protocols
+ * @param string $allowed_protocols Allowed protocols
+ * @return string Sanitized content
+ */
+function wp_kses_bad_protocol_once($string, $allowed_protocols) {
+ global $_kses_allowed_protocols;
+ $_kses_allowed_protocols = $allowed_protocols;
+
+ $string2 = preg_split('/:|:|:/i', $string, 2);
+ if ( isset($string2[1]) && !preg_match('%/\?%', $string2[0]) )
+ $string = wp_kses_bad_protocol_once2($string2[0], $allowed_protocols) . trim($string2[1]);
+ else
+ $string = preg_replace_callback('/^((&[^;]*;|[\sA-Za-z0-9])*)'.'(:|:|&#[Xx]3[Aa];)\s*/', create_function('$matches', 'global $_kses_allowed_protocols; return wp_kses_bad_protocol_once2($matches[1], $_kses_allowed_protocols);'), $string);
+
+ return $string;
+}
+
+/**
+ * wp_kses_bad_protocol_once2() - Callback for wp_kses_bad_protocol_once() regular expression.
+ *
+ * This function processes URL protocols, checks to see if they're in the
+ * white-list or not, and returns different data depending on the answer.
+ *
+ * @since 1.0.0
+ *
+ * @param string $string Content to check for bad protocols
+ * @param array $allowed_protocols Allowed protocols
+ * @return string Sanitized content
+ */
+function wp_kses_bad_protocol_once2($string, $allowed_protocols) {