Bug 16323 – Regexp functions fail silently when stack limit is exceeded

• Status: NEW
• Component: JavaScriptCore

[Eric Seidel (no email)]

Regexp functions fail silently when stack limit is exceeded

var re = new RegExp("(\cd{4,}|[(\u006c)]*?)*", "imy");
"foo".match(re);

All this does is print:
jsRegExpExecute failed with result -5

To the console.  I would have expected it to throw an exception.

[David Kilzer (:ddkilzer)]

What does Firefox or MSIE do in this case?

[Darin Adler]

Changing this will be very simple once we decide what behavior we want.

[Eric Seidel (no email)]

Actually this same regexp fails that way:

var re = new RegExp("(a*)*");
"a".match(re);

Which it shouldn't.  This is a bug in our regexp correctness.