1 files changed, 12 insertions, 0 deletions
diff --git a/lib/utils.js b/lib/utils.js
index c7d6932c..b0020ac8 100644
--- a/lib/utils.js
+++ b/lib/utils.js
@@ -97,3 +97,15 @@ var MAP = (function(){
     function Splice(val) { this.v = val };
     return MAP;
 })();
+
+var BASE54_DIGITS = "etnrisouaflchpdvmgybwESxTNCkLAOM_DPHBjFIqRUzWXV$JKQGYZ0516372984";
+
+function base54(num) {
+    var ret = "", base = 54;
+    do {
+        ret += BASE54_DIGITS.charAt(num % base);
+        num = Math.floor(num / base);
+        base = 64;
+    } while (num > 0);
+    return ret;
+};