- Patch #34755 by chx et al: faster menu system. HEAD is temporary broken and there is no upgrade path yet.

1 files changed, 19 insertions, 0 deletions

diff --git a/includes/common.inc b/includes/common.inc
index 8827a732b..8811a36d8 100644
--- a/includes/common.inc
+++ b/includes/common.inc
@@ -2209,3 +2209,22 @@ function element_child($key) {
 function element_children($element) {
   return array_filter(array_keys((array) $element), 'element_child');
 }
+
+/**
+ * Generate vancode.
+ *
+ * Consists of a leading character indicating length, followed by N digits
+ * with a numerical value in base 36. Vancodes can be sorted as strings
+ * without messing up numerical order.
+ *
+ * It goes:
+ * 00, 01, 02, ..., 0y, 0z,
+ * 110, 111, ... , 1zy, 1zz,
+ * 2100, 2101, ..., 2zzy, 2zzz,
+ * 31000, 31001, ...
+ */
+function int2vancode($i = 0) {
+  $num = base_convert((int)$i, 10, 36);
+  $length = strlen($num);
+  return chr($length + ord('0') - 1) . $num;
+}