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Named regular expression group “(?Pregexp)”: what does “P” stand for?

...ons From: Guido van Rossum (gui...@CNRI.Reston.Va.US) Date: Dec 10, 1997 3:36:19 pm I have an unusual request for the Perl developers (those that develop the Perl language). I hope this (perl5-porters) is the right list. I am cc'ing the Python string-sig because it is the origin...
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Should I use the Reply-To header when sending emails as a service to others?

... answered Jan 18 '11 at 20:01 dkarpdkarp 13.4k55 gold badges5353 silver badges6262 bronze badges ...
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Create Directory if it doesn't exist with Ruby

... answered Oct 9 '13 at 19:08 zrl3dxzrl3dx 7,08833 gold badges2222 silver badges3333 bronze badges ...
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“icon-bar” in twitter bootstrap navigation bar

... 130 icon-bar is used for responsive layouts to create a button that looks like ≡ on narrow browser...
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When to use the brace-enclosed initializer?

... @user1304032: A locale is not a string, therefore you wouldn't use copy initialization. A locale also does not contain a string (it might store that string as implementation detail, but that's not its purpose), therefore you wouldn'...
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What is the difference between object keys with quotes and without quotes?

... answered Dec 3 '10 at 18:10 bdukesbdukes 131k1919 gold badges136136 silver badges170170 bronze badges ...
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getSupportActionBar from inside of Fragment ActionBarCompat

... 290 After Fragment.onActivityCreated(...) you'll have a valid activity accessible through getActivit...
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Inherit from a generic base class, apply a constraint, and implement an interface in C#

... answered Jan 5 '10 at 16:30 Adam RobinsonAdam Robinson 166k3131 gold badges264264 silver badges327327 bronze badges ...
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Why prefer two's complement over sign-and-magnitude for signed numbers?

..., 2 and -1. In your "intuitive" way of representing numbers, they would be 0010 and 1001, respectively (I'm sticking to 4 bits for size). In the two's complement way, they are 0010 and 1111. Now, let's say I want to add them. Two's complement addition is very simple. You add numbers normally and an...
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How to get all child inputs of a div element (jQuery)

... 308 Use it without the greater than: $("#panel :input"); The > means only direct children of ...