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Fix #556

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`\uFEFF` (ZERO WIDTH NO-BREAK SPACE) is removed when parsing, but was
un-escaped for the output when `ascii_only` was false.

When using
UglifyJS multiple times (creating packages from minified sources, for
example), this would lead to problems because the byte was removed when
parsing for the second time.
This commit is contained in:
Richard van Velzen 2014-10-23 16:16:19 +02:00
parent 73cc0505f5
commit a75987b873
1 changed files with 2 additions and 1 deletions
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3
lib/output.js
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@ -86,7 +86,7 @@ function OutputStream(options) {
function make_string(str) {
var dq = 0, sq = 0;
str = str.replace(/[\\\b\f\n\r\t\x22\x27\u2028\u2029\0]/g, function(s){
str = str.replace(/[\\\b\f\n\r\t\x22\x27\u2028\u2029\0\ufeff]/g, function(s){
switch (s) {
case "\\": return "\\\\";
case "\b": return "\\b";
@ -98,6 +98,7 @@ function OutputStream(options) {
case '"': ++dq; return '"';
case "'": ++sq; return "'";
case "\0": return "\\x00";
case "\ufeff": return "\\ufeff";
}
return s;
});