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fix Unicode handling in parser (#1884)

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There was an implicit assumption that first character within surrogate header range implies the next character must form a surrogate pair, which is not necessarily true.
This commit is contained in:
Alex Lam S.L
2017-05-09 01:58:31 +08:00
committed by GitHub
parent 3fac29a017
commit 2433bb4e52
4 changed files with 23 additions and 17 deletions
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12
lib/output.js
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@@ -215,16 +215,6 @@ function OutputStream(options) {
var might_add_newline = 0;
var last = "";
function last_char() {
var char = last.charAt(last.length - 1);
if (is_surrogate_pair_tail(char)) {
return last.charAt(last.length - 2) + char;
}
return char;
};
var ensure_line_len = options.max_line_len ? function() {
if (current_col > options.max_line_len) {
if (might_add_newline) {
@@ -247,7 +237,7 @@ function OutputStream(options) {
function print(str) {
str = String(str);
var ch = get_full_char(str, 0);
var prev = last_char();
var prev = get_full_char(last, last.length - 1);
if (might_need_semicolon) {
might_need_semicolon = false;