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authorGravatar Piotr Russ <mail@pruss.it> 2020-11-16 00:10:28 +0100
committerGravatar Piotr Russ <mail@pruss.it> 2020-11-16 00:10:28 +0100
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1 files changed, 20 insertions, 0 deletions
diff --git a/node_modules/ajv/lib/compile/ucs2length.js b/node_modules/ajv/lib/compile/ucs2length.js
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+'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;
+};