From de98e0b232509d5f40c135d540a70e415272ff85 Mon Sep 17 00:00:00 2001
From: Florian Dold <florian.dold@gmail.com>
Date: Wed, 3 May 2017 15:35:00 +0200
Subject: node_modules

---
 node_modules/ajv/lib/compile/ucs2length.js | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)
 create mode 100644 node_modules/ajv/lib/compile/ucs2length.js

(limited to 'node_modules/ajv/lib/compile/ucs2length.js')

diff --git a/node_modules/ajv/lib/compile/ucs2length.js b/node_modules/ajv/lib/compile/ucs2length.js
new file mode 100644
index 000000000..d193fb170
--- /dev/null
+++ b/node_modules/ajv/lib/compile/ucs2length.js
@@ -0,0 +1,20 @@
+'use strict';
+
+// https://mathiasbynens.be/notes/javascript-encoding
+// https://github.com/bestiejs/punycode.js - punycode.ucs2.decode
+module.exports = function ucs2length(str) {
+  var length = 0
+    , len = str.length
+    , pos = 0
+    , value;
+  while (pos < len) {
+    length++;
+    value = str.charCodeAt(pos++);
+    if (value >= 0xD800 && value <= 0xDBFF && pos < len) {
+      // high surrogate, and there is a next character
+      value = str.charCodeAt(pos);
+      if ((value & 0xFC00) == 0xDC00) pos++; // low surrogate
+    }
+  }
+  return length;
+};
-- 
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