improve unicode handling (#3648)

2019-12-28 18:06:51 +00:00
parent 4cf612dc9f
commit 22b47cdd63
3 changed files with 91 additions and 11 deletions
--- a/lib/parse.js
+++ b/lib/parse.js
@@ -133,14 +133,10 @@ function is_letter(code) {
 }

 function is_surrogate_pair_head(code) {
-    if (typeof code == "string")
-        code = code.charCodeAt(0);
    return code >= 0xd800 && code <= 0xdbff;
 }

 function is_surrogate_pair_tail(code) {
-    if (typeof code == "string")
-        code = code.charCodeAt(0);
    return code >= 0xdc00 && code <= 0xdfff;
 }