Recognize identifier characters from the Supplementary Multilingual P…

…lane. Fixes jquery#1244.
ariya · Jul 28, 2015 · f4e760b · f4e760b
1 parent 82e5030
commit f4e760b
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/esprima.js b/esprima.js
@@ -303,6 +303,12 @@
             String.fromCharCode(0xDC00 + ((cp - 0x10000) & 1023));
     }
 
+    function fromCodePoint(cp) {
+        return (cp < 0x10000) ? String.fromCharCode(cp) :
+            String.fromCharCode(0xD800 + ((cp - 0x10000) >> 10)) +
+            String.fromCharCode(0xDC00 + ((cp - 0x10000) & 1023));
+    }
+
     function isIdentifierStart(ch) {
         return (ch === 0x24) || (ch === 0x5F) ||  // $ (dollar) and _ (underscore)
             (ch >= 0x41 && ch <= 0x5A) ||         // A..Z