[Issue 7962] std.regex: Captures.length() returns incorrect value

[d-bugmail at puremagic.com]

http://d.puremagic.com/issues/show_bug.cgi?id=7962


Dmitry Olshansky <dmitry.olsh at gmail.com> changed:

           What    |Removed                     |Added
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           Keywords|                            |pull
                 CC|                            |dmitry.olsh at gmail.com


--- Comment #1 from Dmitry Olshansky <dmitry.olsh at gmail.com> 2012-04-21 14:11:59 PDT ---
(In reply to comment #0)
> It seems that Captures.length() from std.regex returns bogus lengths for empty
> captures (I might be using it improperly). Here's a simple example, the second
> match object claims length 2 while being empty.
>

Thanks for the detailed info. The problem is that Captures.length is hardwired
to the number of sub captures + 1 which is fine as long as there is a match.

For now you may use m.empty ? 0 : m.length as a workaround.

Pull:
https://github.com/D-Programming-Language/phobos/pull/548

P.S. Usage of e.g. length() is deprecated and fails with -property switch. Omit
parens for @property members.

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