[Issue 5674] AssertError in std.regex

[d-bugmail at puremagic.com]

http://d.puremagic.com/issues/show_bug.cgi?id=5674


Matt Peterson <revcompgeek at gmail.com> changed:

           What    |Removed                     |Added
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                 CC|                            |revcompgeek at gmail.com


--- Comment #2 from Matt Peterson <revcompgeek at gmail.com> 2011-04-06 11:41:18 PDT ---
After some debugging, it looks like Captures is looking for the first unmatched
group and stopping there when giving the length of the captures, which I
believe is the cause of the assert error.

The second problem is that when a group is unmatched the startIdx and endIdx
are stored as size_t.max, and when Captures.front/opIndex as well as
RegexMatch.hit try to slice the input with those numbers causes a range
violation. Most regex engines handle this by returning null if a group is
unmatched.

I'll try to submit a patch soon if I get it working.

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