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  • Access to Perl's empty angle "<>" operator from an actual filehandle?

    - by Ryan Thompson
    I like to use the nifty perl feature where reading from the empty angle operator <> magically gives your program UNIX filter semantics, but I'd like to be able to access this feature through an actual filehandle (or IO::Handle object, or similar), so that I can do things like pass it into subroutines and such. Is there any way to do this? This question is particularly hard to google, because searching for "angle operator" and "filehandle" just tells me how to read from filehandles using the angle operator.

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  • How do BitTorrents connect with eachother?

    - by mazzzzz
    Hey guys, I was just downloading a new distro of linux using uTorrent, and started to wonder how uTorrent (and other bittorrents) send files to eachother through NAT routers? They obviously use the trackers to get introduced, but how do they pass info to eachother? Is there a whitepaper on this? I couldn't find one :/ Thanks, Max

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  • Developing a custom-validation in asp.net for specific control and criteria

    - by Gaurav
    Hello There is another relevant question asked Validation Check in asp.net In the same scenario we need a custom validator control which will alert user for any wrong entry. This will work like this : Developer will pass the control-name, input-value and format-required For instance like for textbox it can be: txtName,txtName.Text, allow-alphabets-only The accordingly format if the user input is invalid he/she will be got prompt. Please suggest the right way to do the smae. Thanks in advance.

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  • Python: Convert a string to an integer

    - by Adam Nelson
    Does anybody have a quickie for converting an unsafe string to an int? The string typically comes back as: '234\r\n' or something like that. In this case I want 234. If '-1\r\n', I want -1. I never want the method to fail but I don't want to go so far as try, except, pass just to hide errors either (in case something extreme happens).

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  • Clean checkout from TFS 2008

    - by Luis Medel
    Hi all, I want to pass a project to a colleague without SCC bindings to avoid accidental changes in my repository. Is it possible to do a clean checkout from a TFS 2008 repo? I'm going crazy finding such an option in VS2008. Thanks in advance.

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  • Get a list/tuple/dict of the arguments passed to a function?

    - by digitala
    Given the following function: def foo(a, b, c): pass How would one obtain a list/tuple/dict/etc of the arguments passed in, without having to build the structure myself? Specifically, I'm looking for Python's version of JavaScript's arguments keyword or PHP's func_get_args() method. What I'm not looking for is a solution using *args or **kwargs; I need to specify the argument names in the function definition (to ensure they're being passed in) but within the function I want to work with them in a list- or dict-style structure.

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  • ruby socket programming using credentials

    - by satya
    HI folks, I'm trying to establish connection to a remote server using ruby socket connection TcpSocket. I started with TcpSocket.new(port,host) Now, How do I pass the credentials to it. The remote server needs credentials to allow me to connect. Any help is very much appreciated. Thanks

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  • iPhone: How to Embed NSData in XML for Upload to Server?

    - by milanjansari
    Hello, I want to pass data to a server and store the file there in a database as binary data. NSData *myData = [NSData dataWithContentsOfFile:pathDoc]; pathDoc = [NSString stringWithFormat:@"<size>%d</size><type>%d</type><cdate>%@</cdate><file>%c</file><fname>File</fname>",fileSizeVal,filetype,creationDate,myData]; Any idea about this? Thanks you, Milan

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  • Problems with asp:Button OnClick event...

    - by Matt
    Hi, Here is my button <asp:Button ID="myButton" Text="Click Me" OnClick="doSomething(10)" runat="server" /> Here is the server function public void doSomething(int num) { int someOtherNum = 10 + num; } When I try to compile the code I get the error "Method Name Expected" for the line: <asp:Button ID="myButton" Text="Click Me" OnClick="doSomething(10)" runat="server" /> What am I doing wrong? Am I not allowed to pass values to the server from an OnClick event?

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  • How to print a var inside a script

    - by Pollux Khafra
    Alright I'm trying to use a jplayer script to trigger the player in my template. I need to pass a value to the "mp3" option but I don't get how I get $music to print. $(document).ready(function(){ $("#jquery_jplayer_1").jPlayer({ ready: function () { $(this).jPlayer("setMedia", { var music = $(".album-playlist li").first().find("input").val(); mp3: $music, }).jPlayer(""); }, swfPath: "http://mysite.com/wp-content/themes/beta/libs", supplied: "mp3" }); });

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  • VBScript - image to binary

    - by countnazgul
    Hi to all, i'm not a VB programmer but i need a vbscript that convert image file (from local disk) to be converted to binary data and the passed to webservice. I realize how to pass data to webservice but i can't find how to convert the image file to binary data. I spend a lot of time to find some kind of solution but with no luck. Can somebody help me? Thanks!

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  • passing int into android activities

    - by Dawood Abbasi
    i pass int to next activity using this code Intent intent = new Intent(A.this, B.class); intent.putExtra("selectedType", i); startActivity(intent); and then receive this in activity B Intent intent = new Intent(); int i = intent.getIntExtra("selectedType", 0); Toast.makeText(getApplicationContext(), String.valueOf(i), Toast.LENGTH_LONG).show(); but when in this activity, it always display 0.

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  • Very basic question about Hadoop and compressed input files

    - by Luis Sisamon
    I have started to look into Hadoop. If my understanding is right i could process a very big file and it would get split over different nodes, however if the file is compressed then the file could not be split and wold need to be processed by a single node (effectively destroying the advantage of running a mapreduce ver a cluster of parallel machines). My question is, assuming the above is correct, is it possible to split a large file manually in fixed-size chunks, or daily chunks, compress them and then pass a list of compressed input files to perform a mapreduce?

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  • Get HTTP Get parameters from Restlet Request

    - by Holograham
    I am trying to figure out how to get the parameters from a Restlet request object. my request comes in as /customer?userId=1 and I want to grab the parameter to pass to my DAO for the query. @Get("xml") public Representation toXml() throws ResourceException, Exception { try { //get param from request //call DAO with parameter } catch(Exception e) { throw e; } }

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  • Constructor Injection and when to use a Service Locator

    - by Simon
    I'm struggling to understand parts of StructureMap's usage. In particular, in the documentation a statement is made regarding a common anti-pattern, the use of StructureMap as a Service Locator only instead of constructor injection (code samples straight from Structuremap documentation): public ShippingScreenPresenter() { _service = ObjectFactory.GetInstance<IShippingService>(); _repository = ObjectFactory.GetInstance<IRepository>(); } instead of: public ShippingScreenPresenter(IShippingService service, IRepository repository) { _service = service; _repository = repository; } This is fine for a very short object graph, but when dealing with objects many levels deep, does this imply that you should pass down all the dependencies required by the deeper objects right from the top? Surely this breaks encapsulation and exposes too much information about the implementation of deeper objects. Let's say I'm using the Active Record pattern, so my record needs access to a data repository to be able to save and load itself. If this record is loaded inside an object, does that object call ObjectFactory.CreateInstance() and pass it into the active record's constructor? What if that object is inside another object. Does it take the IRepository in as its own parameter from further up? That would expose to the parent object the fact that we're access the data repository at this point, something the outer object probably shouldn't know. public class OuterClass { public OuterClass(IRepository repository) { // Why should I know that ThingThatNeedsRecord needs a repository? // that smells like exposed implementation to me, especially since // ThingThatNeedsRecord doesn't use the repo itself, but passes it // to the record. // Also where do I create repository? Have to instantiate it somewhere // up the chain of objects ThingThatNeedsRecord thing = new ThingThatNeedsRecord(repository); thing.GetAnswer("question"); } } public class ThingThatNeedsRecord { public ThingThatNeedsRecord(IRepository repository) { this.repository = repository; } public string GetAnswer(string someParam) { // create activeRecord(s) and process, returning some result // part of which contains: ActiveRecord record = new ActiveRecord(repository, key); } private IRepository repository; } public class ActiveRecord { public ActiveRecord(IRepository repository) { this.repository = repository; } public ActiveRecord(IRepository repository, int primaryKey); { this.repositry = repository; Load(primaryKey); } public void Save(); private void Load(int primaryKey) { this.primaryKey = primaryKey; // access the database via the repository and set someData } private IRepository repository; private int primaryKey; private string someData; } Any thoughts would be appreciated. Simon

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  • Cleaning hanging IPCS in UNIX

    - by Sachin Chourasiya
    I knew that IPCRM is used to clean hanging IPCS and semaphores for a particumar user by passing the segment id or the semaphore id in either -m or -s option. WE NEED TO PASS INDIVIDUAL SEGMENT ID/ SEMAPHORE ID IN -m OPTION. Is there any way to clean ipcs that belongs to a particular user in just one move. I think shell script could be the way but not sure. Please help

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