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  • CFPreferences for another (or all) users

    - by James Turner
    I'm working on a background service which needs to ask several users' iTunes settings (the users will opt-in via a helper application which they run from their login). Is there an easy way to read the preferences for another user, than the current one, using CFPreferences? The docs, for example for CFPreferencesCopyValue, explicitly state: 'Do not use arbitrary user and host names, instead pass the pre-defined domain qualifier constants.', when passing the 'userName' argument to the various functions.

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  • Avoiding explicit recursion in Haskell

    - by Travis Brown
    The following simple function applies a given monadic function iteratively until it hits a Nothing, at which point it returns the last non-Nothing value. It does what I need, and I understand how it works. lastJustM :: (Monad m) => (a -> m (Maybe a)) -> a -> m a lastJustM g x = g x >>= maybe (return x) (lastJustM g) As part of my self-education in Haskell I'm trying to avoid explicit recursion (or at least understand how to) whenever I can. It seems like there should be a simple non-explicitly recursive solution in this case, but I'm having trouble figuring it out. I don't want something like a monadic version of takeWhile, since it could be expensive to collect all the pre-Nothing values, and I don't care about them anyway. I checked Hoogle for the signature and nothing shows up. The m (Maybe a) bit makes me think a monad transformer might be useful here, but I don't really have the intuitions I'd need to come up with the details (yet). It's probably either embarrassingly easy to do this or embarrassingly easy to see why it can't or shouldn't be done, but this wouldn't be the first time I've used self-embarrassment as a pedagogical strategy. Background: Here's a simplified working example for context: suppose we're interested in random walks in the unit square, but we only care about points of exit. We have the following step function: randomStep :: (Floating a, Ord a, Random a) => a -> (a, a) -> State StdGen (Maybe (a, a)) randomStep s (x, y) = do (a, gen') <- randomR (0, 2 * pi) <$> get put gen' let (x', y') = (x + s * cos a, y + s * sin a) if x' < 0 || x' > 1 || y' < 0 || y' > 1 then return Nothing else return $ Just (x', y') Something like evalState (lastJustM (randomStep 0.01) (0.5, 0.5)) <$> newStdGen will give us a new data point.

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  • How to add changebar in latex?

    - by Rabarberski
    In Latex, I've created a new command 'changedtext' to mark specifics parts in my document and make it appear blue: \newcommand{\changedtext}[1]{\textcolor{blue}{#1} } Is there any easy way to alter the command to have change bars appear next to the text in the resulting PDF? If not possible, any other suggestion for a visual markup (other than change bars) that would be clear on a black & white printout would be useful as well.

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  • Top 10 unless count is zero

    - by datatoo
    This is probably easy, but eludes me. SQL server2005 I want to show top 100 but if there are not 100 only want to show those and not include zero counts in the result SELECT TOP (100) UserName, FullName_Company, FullName, (SELECT COUNT(*) FROM dbo.Member_Ref WHERE (RefFrom_UserName = dbo.view_Members.UserName) AND (RefDate >= '5/1/2010') AND (RefDate <= '6/1/2010')) AS RefFromCount FROM dbo.view_Members WHERE (MemberStatus = N'Active') ORDER BY RefFromCount DESC I have tried using Group By and HAVING COUNT(*)0 all with the same wrong results

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  • How to jar java source files from different (sub-)directories?

    - by Holger
    Consider the following directory structure: ./source/com/mypackage/../A.java ./extensions/extension1/source/com/mypackage/../T.java ./extensions/extension2/source/com/mypackage/../U.java ... ./extensions/extensionN/source/com/mypackage/../Z.java I want to produce a source jar with the following contents: com/mypackage/../A.java com/mypackage/../T.java com/mypackage/../U.java ... com/mypackage/../Z.java I know I could use a fileset for each source directory. But is there an easy solution using ANT without having to refer to all extensions explicitly?

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  • Transfer Zip file from iPhone app

    - by dave
    I have an iPhone app that creates a zip file. I need to provide an easy way to allow the user to transfer that zip file to their PC (not via any network connectivity, as this file could be rather large). Any suggestions?

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  • Tool to profile php code

    - by Michael
    Looking for some [freeware/opensource] tool in order to make it easy to profile a big php project on win32 platform. Need to find out which part of code is most time consuming. It's hard to manually put timing function for each function, loop...

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  • Which is clearer form: if(!value) or if(flag == value) ?

    - by CodexArcanum
    I understand this is a subjective question, so I apologize if it needs to be closed, but I feel like it comes up often enough for me to wonder if there is a general preference for one form over the other. Obviously, the best answer is "refactor the code so you don't need to test for falsehood" but sometimes there's no easy way to do so and the "else" branch is simply to continue processing. So when you must have an "if not false" construct, which is the preferred standard: The not operator if(!value) Or the test for false if(value == false)

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  • Tips for making administration of Drupal site easier

    - by Busk
    I'm creating a Drupal site for a client, and I'd like to make administrating the site as easy as possible for them. Examples of what they'd want to do with the site is: Add/Edit/Remove content which will be displayed on various pages Manage a forum - Just the basic Drupal Forum module Add / Ban Users Respond to comments left using the webforum I see there is an Admin module, that looks pretty promising. But I was wondering if anyone has any other helpful tips. Thanks

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  • Embedding existing page in a CakePHP site

    - by lhahne
    We have an existing PHP page (from an earlier project) which could be described as cryptic and ancient. It basically displays a form, catches the input and runs an external application to process the input and then pipes the output to the user. I would really like not to modify this file any more than is required. Would there be an easy way to just make this file magically work by copying it to some location in the CakePHP's directory and have it receive $POST etc. as usual?

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  • How to discover web servers on a local network?

    - by Stefan Kendall
    Suppose I'm running several servers serving basic requests on my local network (say a home network, where all machines generally have an IP in the form K.K.K.x, where x is variable). Is there an easy way to discover all such servers? I would need to find each IP on the network running a particular java server application.

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  • What's the PHP framework equivalent of jQuery?

    - by Cortopasta
    jQuery made javascript so easy for me, I was able to get up and running in a couple of hours doing most tasks. Which PHP framework has similar ease of use and rapid development/write less ability? Or am I stuck basically learning a new language no matter what framework I decide on?

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  • LaTeX lstlisting underlined

    - by Gernot
    Hi, Is there an easy way to have the complete code in a lstlisting environment underlined? My current solution looks like this, but I'm not really happy with it. \begin{lstlisting}[mathescape] $\ul{if(gt(x1, 0)) then} $ ... \end{lstlisting} Thx for any tips.

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  • loading xml without invalid character errors

    - by dalco
    at the moment im loading xml and i am getting error: System.Xml.XmlException: ' ', hexadecimal value 0x17, is an invalid character. Line 2762, position 16. it is easy to fix. just open xml and remove the character. but I need to know is it possible to load xml even with invalid characters and use it for parsing. and is there any downside?

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  • JNA problem with char** (in dll)

    - by underline
    Hi, ok it is 'easy' to make jna wrapper solution for mapping exported functions within dll using jna: long f1(int x), just int long f2(char* y), just char[] but how to deal with long f3(char** z) ? I need f3's result(long) as well as z value on java side. Please don't say cpp code should be rewritten to avoid this:-)

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  • PHP: Object Oriented Programming -> Operator

    - by oman9589
    So I've been reading through the book PHP Solutions, Dynamic Web Design Made Easy by David Powers. I read through the short section on Object Oriented PHP, and I am having a hard time grasping the idea of the - operator. Can anyone try to give me a solid explanation on the - operator in OOP PHP? Example: $westcost = new DateTimeZone('America/Los_Angeles'); $now->setTimezone($westcoast); Also,a more general example: $someObject->propertyName Thanks

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  • fire an intent from the onCreate method in android

    - by Sephy
    Maybe my question might seem a bit weird, but I have an activity in which, in one case , I have to move to another activity before it finishes loading the screen. My condition is in the onCreate method, which means when I encounter it, i get a "startActivity called from outside an activity context" error and the app just crashes... But then, is there an easy way like a flag for the intent to make it work without having the activity context resolved? thanks for any answer

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  • MySQL specifying exact order with WHERE `id` IN (...)

    - by Gray Fox
    Is there an easy way to order MySQL results respectively by WHERE id IN (...) clause? Example: SELECT * FROM articles WHERE articles.id IN (4, 2, 5, 9, 3) to return Article with id = 4 Article with id = 2 Article with id = 5 Article with id = 9 Article with id = 3 and also SELECT * FROM articles WHERE articles.id IN (4, 2, 5, 9, 3) LIMIT 2,2 to return Article with id = 5 Article with id = 9

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  • Keeping filters in Django Admin

    - by Tomo
    What I would like to achive is: I go to admin site, apply some filters to the list of objects I click and object edit, edit, edit, hit 'Save' Site takes me to the list of objects... unfiltered. I'd like to have the filter from step 1 remembered and applied. Is there an easy way to do it?

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  • Which is the good C++ GUI Framework

    - by Suriyan Suresh
    I know there are plenty of C++ GUI libraries out there. Here is an incomplete but significant list: MFC Qt wxWidgets Ultimate++ WTL Win32 Win32Gui WinForms Here is what i want Well documented Modern (and well designed) interface Easy to use Widely used GUI editor (RAD tool) Free

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