Bug 8722 – IE compatibility fix in date parsing

• Component: JavaScriptCore
• Status: RESOLVED FIXED

[George Staikos]

This patch was provided by a KDE developer to make our date parser more IE-compatible.  To quote:

"it seems that quite a lot of broken Javascript code fail on Date.parse(txt) when txt is in the 'xx/xx/xxxx' format (dd/mm/yyyy in France, mm/dd/yyyy elsewhere)."

[George Staikos]

Created attachment 8096 [details]
Our updated testcase file

[George Staikos]

Created attachment 8097 [details]
The patch

[Darin Adler]

Comment on attachment 8097 [details]
The patch

Looks good, but we need a test case. We normally don't land bug fixes without test cases.

[Darin Adler]

(In reply to comment #3)
> (From update of attachment 8097 [details] [edit])
> Looks good, but we need a test case. We normally don't land bug fixes without
> test cases.

Oh, I see the test case now.

Patch needs to include the change to the test case and/or test results inside LayoutTests.

[George Staikos]

Here is the relevant test:

+// Tolerance for high values in xx/xx/xxxx
+
+shouldBe("Date.parse('Mar 30 2006')", "1143669600000");
+shouldBe("Date.parse('30/03/2006')", "1212444000000");
+shouldBe("Date.parse('03/30/2006')", "1143669600000");
+shouldBe("Date.parse('24/55/2006')", "1201129200000");
+shouldBe("Date.parse('70/55/2006')", "315097200000");
+shouldBe("Date.parse('00/00/2006')", "1133305200000");
+shouldBe("Date.parse('01/452/2006')", "1175032800000");
+

[Alexey Proskuryakov]

(In reply to comment #5)

These results do not match what I get from WinIE 6. For example, the first result is 1143662400000 here.

[George Staikos]

I think that was a testcase problem.  Updated testcases:

 // Tolerance for high values in xx/xx/xxxx
+shouldBe("new Date('03/30/2006').getDate()", "30");
+shouldBe("new Date('Mar 30 2006').toString()", "new Date('03/30/2006').toString()");
+shouldBe("new Date('30/03/2006').toString()", "new Date('Jun 03 2008').toString()");
+shouldBe("new Date('24/55/2006').getFullYear()", "2008");
+shouldBe("new Date('70/55/2006').getDate()", "27");
+shouldBe("new Date('00/00/2006').toString()", "new Date('Nov 30 2005').toString()");
+shouldBe("new Date('01/452/2006').toString()", "new Date('Mar 28 2007').toString()");

[Maciej Stachowiak]

r=me, make sure to add the test cases to LayoutTests/fast/js/kde when landing.
Alexey says the new test cases are right in IE.

[Darin Adler]

Comment on attachment 8097 [details]
The patch

This patch doesn't apply to TOT -- the code is different.