As per ES3 (see 18.104.22.168), /\s/ should match both WhiteSpace (7.2) and LineTerminator (7.3). WhiteSpace is defined to include characters from Unicode "Zs" category (besides "standard" - x09, x0B, x0C, x20 and xA0). Firefox (contrary to, say, latest WebKit and Chrome) fails some of these characters. See <http://thinkweb2.com/projects/prototype/whitespace-deviations/> for a full results table. A test is available online at: <http://yura.thinkweb2.com/rcornford_whitespace_test.html> Thank you.
It's also worth mentioning that `String.prototype.trim` seems to rely on the same character set that is matched by (faulty) /\s/. I suppose, fixing /\s/ will also make `trim` fully compliant.
This bug is fixed in trunk. Should it be marked as wanted in older branches?
Which patch fixed this?
From what I gather, it could only be the patch in bug 406271. See http://hg.mozilla.org/mozilla-central/rev/b837948c1daf This is interesting because the WhiteSpaceRanges constant array at http://mxr.mozilla.org/mozilla-central/source/js/src/jsregexp.cpp?&mark=3548-3571#3552 appears to be incomplete even though all the tests at <http://yura.thinkweb2.com/rcornford_whitespace_test.html> pass.
Created attachment 400921 [details] [diff] [review] Patch
Comment on attachment 400921 [details] [diff] [review] Patch I'm traveling and hoping to bounce this review to Dave or Luke. Dave, if you need bounce, then Luke is "it". Thanks, /be
Comment on attachment 400921 [details] [diff] [review] Patch Looks good. r+ with the test case added that I just attached.
One of the shorter stays in the tracemonkey checkin-needed queue at only three months, but still: land it in tracemonkey or admit you can't be bothered and wontfix it.
(In reply to comment #10) > One of the shorter stays in the tracemonkey checkin-needed queue at only three > months, but still: land it in tracemonkey or admit you can't be bothered and > wontfix it. tone not welcome. checkin-needed noted.
I backed this out to fix an orange tinderbox.
(In reply to comment #13) > I backed this out to fix an orange tinderbox. How do I find out which tests failed with this patch?
Hey there, it may be too late to find the logs at this point. I can send it to the tryserver tomorrow and see what we get. I'll post the logs here.  https://wiki.mozilla.org/Build:TryServer
(In reply to comment #15) > Hey there, it may be too late to find the logs at this point. I can send it to > the tryserver tomorrow and see what we get. I'll post the logs here. > >  https://wiki.mozilla.org/Build:TryServer Would it be possible for you to do the same for bug 529386? (not sure what the protocol is for requesting these logs seeing as I don't have commit access).
Robert, any word on this bug?
U+0085 is from Cc category (Other, Control), not Zs (Separator, Space). The latter one is what ES5 considers a whitespace. It does look like a bug in a test.