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Escape all ASCII control characters within strings when using ascii_only.

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Fixes #1017.

Tab characters within strings are now output as `\t` in all output modes.
This commit is contained in:
kzc
2016-03-24 11:51:54 -04:00
parent ee6c9fabb7
commit 07bb7262d0
2 changed files with 38 additions and 5 deletions
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11
lib/output.js
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@@ -74,7 +74,7 @@ function OutputStream(options) {
var OUTPUT = "";
function to_ascii(str, identifier) {
return str.replace(/[\u0080-\uffff]/g, function(ch) {
return str.replace(/[\u0000-\u001f\u007f-\uffff]/g, function(ch) {
var code = ch.charCodeAt(0).toString(16);
if (code.length <= 2 && !identifier) {
while (code.length < 2) code = "0" + code;
@@ -90,16 +90,17 @@ function OutputStream(options) {
var dq = 0, sq = 0;
str = str.replace(/[\\\b\f\n\r\v\t\x22\x27\u2028\u2029\0\ufeff]/g, function(s){
switch (s) {
case '"': ++dq; return '"';
case "'": ++sq; return "'";
case "\\": return "\\\\";
case "\b": return "\\b";
case "\f": return "\\f";
case "\n": return "\\n";
case "\r": return "\\r";
case "\t": return "\\t";
case "\b": return "\\b";
case "\f": return "\\f";
case "\x0B": return options.screw_ie8 ? "\\v" : "\\x0B";
case "\u2028": return "\\u2028";
case "\u2029": return "\\u2029";
case '"': ++dq; return '"';
case "'": ++sq; return "'";
case "\0": return "\\x00";
case "\ufeff": return "\\ufeff";
}