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  • Cuboid inside generic polyhedron

    - by DOFHandler
    I am searching for an efficient algorithm to find if a cuboid is completely inside or completely outside or (not-inside and not-outside) a generic (concave or convex) polyhedron. The polyhedron is defined by a list of 3D points and a list of facets. Each facet is defined by the subset of the contour points ordinated such as the right-hand normal points outward the solid. Any suggestion? Thank you

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  • Website with an iframe inside

    - by user1328929
    Does anyone have any ideas how to design a website with an iframe inside , like a gallery , to browse inside urls , but still remain on the basic site ? Something like this : http://ru.trovit.com/nedvizhimost/index.php/cod.frame/url.http%253A%252F%252Fwww.mesto.ru%252Fhouse-sale%252F1165477/id_ad.123131lZaNE/type.1/what.%D0%B4%D0%BE%D0%BC%20%D0%BB%D0%B5%D0%BD%D0%B8%D0%BD%D0%B3%D1%80%D0%B0%D0%B4%D1%81%D0%BA%D0%B0%D1%8F%20%D0%BE%D0%B1%D0%BB%D0%B0%D1%81%D1%82%D1%8C/pos.2/org.1/frame_pos.2/publisher_id./referer_id.51/t.1

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  • preg_match() find all values inside of table?

    - by mathiregister
    hey guys, a curl function returns a string $widget that contains regular html - two divs where the first div holds a table with various values inside of <td>'s. i wonder what's the easiest and best way for me to extract only all the values inside of the <td>'s so i have blank values without the remaining html. any idea what the pattern for the preg_match should look like? thank you.

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  • Django: Get bound IP address inside settings.py

    - by Silver Light
    Hello! I want to enable debug (DEBUG = True) For my Django project only if it runs on localhost. How can I get user IP address inside settings.py? I would like something like this to work: #Debugging only on localhost if user_ip = '127.0.0.1': DEBUG = True else: DEBUG = False How do I put user IP address in user_ip variable inside settings.py file?

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  • reference a form inside a selector in jquery

    - by ooo
    if i have this code in jquery: var parentDiv = $(this).parent('.copyInstance'); inside this div there is a form. how do i reference a form element inside this selector? i want something like this $.post($(parentDiv + " Form").attr('action'), $(parentDiv + " Form").serialize(), function(data) { }); but this above doesn't seem to work

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  • Content inside div unclickable

    - by Mike
    Hi, I have a div and I have content inside of it. When I make this div position:relative; it renders all the content inside unclickable only in IE7. When I change it to absolute, static or fixed it works again. Only happens in IE7. Anyone know why? Thanks

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  • How to access the elements in <script> inside the body tag

    - by Geetha
    Hi All, I am using <script> inside the body tag. <script type="text/javascript" language="javascript"> $('#audioVolume').text($('#audioVolume').text(Math.round((document.mediaPlayer.Volume + 2000) / 10) + "%")); </script> Error: Microsoft JScript runtime error: 'undefined' is null or not an object. Need: I want to access the html elements in <script inside the body tag.

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  • grep value inside a variable pointing to other variable

    - by Joice
    using : ksh *abc = 1 efg = 2 hgd = 3 not known to me * say if i have Value="abc efg hgd" abc efg hgd all contains some value which i dnt know. Now I want to grep the value contained inside abc. like for i in $Value do grep "echo $(($((echo $i | cut -d'|' -f2))))" done this grep should look for the value inside abc efg hgd grep 1 grep 2 grep 3

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  • determine if line segment is inside polygon

    - by dato
    suppose we have simple polygon(without holes) with vertices (v0,v1,....vn) my aim is to determine if for given point p(x,y) any line segment connecting this point and any vertices of polygon is inside polygon or even for given two point p(x0,y0) `p(x1,y1)` line segment connecting these two point is inside polygon? i have searched many sites about this ,but i am still confused,generally i think we have to compare coordinates of vertices and by determing coordinates of which point is less or greater to another point's coordinates,we could determine location of any line segment,but i am not sure how correct is this,please help me

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  • Concurrency Utilities for Java EE Early Draft (JSR 236)

    - by arungupta
    Concurrency Utilities for Java EE is being worked as JSR 236 and has released an Early Draft. It provides concurrency capabilities to Java EE application components without compromising container integrity. Simple (common) and advanced concurrency patterns are easily supported without sacrificing usability. Using Java SE concurrency utilities such as java.util.concurrent API, java.lang.Thread and java.util.Timer in a Java EE application component such as EJB or Servlet are problematic since the container and server have no knowledge of these resources. JSR 236 enables concurrency largely by extending the Concurrency Utilities API developed under JSR-166. This also allows a consistency between Java SE and Java EE concurrency programming model. There are four main programming interfaces available: ManagedExecutorService ManagedScheduledExecutorService ContextService ManagedThreadFactory ManagedExecutorService is a managed version of java.util.concurrent.ExecutorService. The implementations of this interface are provided by the container and accessible using JNDI reference: <resource-env-ref>  <resource-env-ref-name>    concurrent/BatchExecutor  </resource-env-ref-name>  <resource-env-ref-type>    javax.enterprise.concurrent.ManagedExecutorService  </resource-env-ref-type><resource-env-ref> and available as: @Resource(name="concurrent/BatchExecutor")ManagedExecutorService executor; Its recommended to bind the JNDI references in the java:comp/env/concurrent subcontext. The asynchronous tasks that need to be executed need to implement java.lang.Runnable or java.util.concurrent.Callable interface as: public class MyTask implements Runnable { public void run() { // business logic goes here }} OR public class MyTask2 implements Callable<Date> {  public Date call() { // business logic goes here   }} The task is then submitted to the executor using one of the submit method that return a Future instance. The Future represents the result of the task and can also be used to check if the task is complete or wait for its completion. Future<String> future = executor.submit(new MyTask(), String.class);. . .String result = future.get(); Another example to submit tasks is: class MyTask implements Callback<Long> { . . . }class MyTask2 implements Callback<Date> { . . . }ArrayList<Callable> tasks = new ArrayList<();tasks.add(new MyTask());tasks.add(new MyTask2());List<Future<Object>> result = executor.invokeAll(tasks); The ManagedExecutorService may be configured for different properties such as: Hung Task Threshold: Time in milliseconds that a task can execute before it is considered hung Pool Info Core Size: Number of threads to keep alive Maximum Size: Maximum number of threads allowed in the pool Keep Alive: Time to allow threads to remain idle when # of threads > Core Size Work Queue Capacity: # of tasks that can be stored in inbound buffer Thread Use: Application intend to run short vs long-running tasks, accordingly pooled or daemon threads are picked ManagedScheduledExecutorService adds delay and periodic task running capabilities to ManagedExecutorService. The implementations of this interface are provided by the container and accessible using JNDI reference: <resource-env-ref>  <resource-env-ref-name>    concurrent/BatchExecutor  </resource-env-ref-name>  <resource-env-ref-type>    javax.enterprise.concurrent.ManagedExecutorService  </resource-env-ref-type><resource-env-ref> and available as: @Resource(name="concurrent/timedExecutor")ManagedExecutorService executor; And then the tasks are submitted using submit, invokeXXX or scheduleXXX methods. ScheduledFuture<?> future = executor.schedule(new MyTask(), 5, TimeUnit.SECONDS); This will create and execute a one-shot action that becomes enabled after 5 seconds of delay. More control is possible using one of the newly added methods: MyTaskListener implements ManagedTaskListener {  public void taskStarting(...) { . . . }  public void taskSubmitted(...) { . . . }  public void taskDone(...) { . . . }  public void taskAborted(...) { . . . } }ScheduledFuture<?> future = executor.schedule(new MyTask(), 5, TimeUnit.SECONDS, new MyTaskListener()); Here, ManagedTaskListener is used to monitor the state of a task's future. ManagedThreadFactory provides a method for creating threads for execution in a managed environment. A simple usage is: @Resource(name="concurrent/myThreadFactory")ManagedThreadFactory factory;. . .Thread thread = factory.newThread(new Runnable() { . . . }); concurrent/myThreadFactory is a JNDI resource. There is lot of interesting content in the Early Draft, download it, and read yourself. The implementation will be made available soon and also be integrated in GlassFish 4 as well. Some references for further exploring ... Javadoc Early Draft Specification concurrency-ee-spec.java.net [email protected]

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  • Problem with "write" function in linux

    - by Dumitru Catalin
    I am trying to write 2 server/client programs under Linux, in which they communicate through named pipes. The problem is that sometimes when I try to write from the server into a pipe that doesn't exist anymore (the client has stopped), I get a "Resource temporarily unavailable" error and the server stops completely. I understand that this is caused by using a O_NONBLOCK parameter when opening the fifo chanel, indicating the point where the program would usually wait until it could write again in the file, but is there a way to stop this behavior, and not halt the entire program if a problem occurs (shouldn't the write command return -1 ad the program continue normally)? And another strange thing is that this error only occurs when running the programs outside the ide (eclipse). If I run both programs inside eclipse, on error the write function just returns -1 and the programs continues normally.

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  • ArrayBlockingQueue exceeds given capacity

    - by Wojciech Reszelewski
    I've written program solving bounded producer & consumer problem. While constructing ArrayBlockingQueue I defined capacity 100. I'm using methods take and put inside threads. And I've noticed that sometimes I see put 102 times with any take's between them. Why does it happen? Producer run method: public void run() { Object e = new Object(); while(true) { try { queue.put(e); } catch (InterruptedException w) { System.out.println("Oj, nie wyszlo, nie bij"); } System.out.println("Element added"); } } Consumer run method: public void run() { while(true) { try { queue.take(); } catch (InterruptedException e) { e.printStackTrace(); } System.out.println("Element removed"); } } Part of uniq -c on file with output: 102 Element removed 102 Element added 102 Element removed 102 Element added 102 Element removed 102 Element added 102 Element removed 102 Element added 102 Element removed 102 Element added 102 Element removed 102 Element added 2 Element removed 2 Element added 102 Element removed 102 Element added

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  • Cannot access website from inside network

    - by musclez
    I have a website running from my internal network available at the example IP 192.168.1.5. When I type this in to the browser, it redirects to my domain name ie, "example.com", and gives me Error code: ERR_CONNECTION_REFUSED. Any other machine that is inside of the network can access the website. The website is also accessible outside of the network. Other services from the server, like file sharing or ftp, are available to all machines in the network including the one i'm having issues http issues with. The issue may be linked to a proxy service, but from my understanding the service has been completely disabled and any executable have been uninstalled from the machine. I am wondering if there is some residual proxy information remaining on the machine that limits the connection. I'm fairly positive that "example.com" is what is being blocked by the local machine, and not an IP address being blocked or a faulty connection. When I examine the hosts file, there are no redirects to the local machine for "example.com". There was a rule, as on my other machines within the network: 192.168.1.5 example.com But i have since removed that for troubleshooting purposes. What intrigued me is that when I use the actual IP, the IP address will redirect to the domain in the browser and THEN say ERR_CONNECTION_REFUSED. Server-Side Results The server logs are reporting this: example.com ::1 - - [Date & time] "OPTIONS * HTTP/1.0" 200 126 "-" "Apache/2. 2.22 (Unix) (internal dummy connection)" However, this seems to be irrelevant as it is not triggered when I try to connect to the server with the specified machine. Fiddler results: Host: *example.com* Proxy-Connection: keep-alive Chrome-Side [Fiddler] The connection to 'example.com' failed. Error: ConnectionRefused (0x274d). System.Net.Sockets. SocketException No connection could be made because the target machine actively refused it 01.23.45.67:80 01.23.45.67:80 would be the external IP, which the server and the machine in question both share. I am doing so reading into 0x274d and its coming back with .NET web.config information. I am still at a loss to what to do with this information. I have WireShark running as well. Theres is a lot of sensitive information in the readout and I'm not sure what to extract from it. Either way, if it helps, I can access that information if anyone would like me to. Thanks for the help!

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  • Getting the data inside the C# web service from Jsonified string

    - by gnomixa
    In my JS I use Jquery's $ajax functions to call the web service and send the jsonified data to it. The data is in the following format: var countries = { "1A": { id: "1A", name: "Andorra" }, "2B": { id: 2B name: "Belgium" }, ..etc }; var jsonData = JSON.stringify({ data: data }); //then $ajax is called and it makes the call to the c# web service On the c# side the web service needs to unpack this data, currently it comes in as string[][] data type. How do I convert it to the format so I can refer to the properties such as .id and .name? Assuming I have a class called Sample with these properties? Thanks! EDIT: Here is my JS code: var jsonData = JSON.stringify(countries); $.ajax({ type: 'POST', url: 'http://localhost/MyService.asmx/Foo', contentType: 'application/json; charset=utf-8', data: jsonData, success: function (msg) { alert(msg.d); }, error: function (xhr, status) { switch (status) { case 404: alert('File not found'); break; case 500: alert('Server error'); break; case 0: alert('Request aborted'); break; default: alert('Unknown error ' + status); } } }); inside c# web service I have: using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.Services; using System.Data; using System.Collections; using System.IO; using System.Web.Script.Services; [WebMethod] [ScriptMethod] public string Foo(IDictionary<string, Country> countries) { return "success"; }

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  • Security Trimmed Cross Site Collection Navigation

    - by Sahil Malik
    Ad:: SharePoint 2007 Training in .NET 3.5 technologies (more information). This article will serve as documentation of a fully functional codeplex project that I just created. This project will give you a WebPart that will give you security trimmed navigation across site collections. The first question is, why create such a project? In every single SharePoint project you will do, one question you will always be faced with is, what should the boundaries of sites be, and what should the boundaries of site collections be? There is no good or bad answer to this, because it really really depends on your needs. There are some factors in play here. Site Collections will allow you to scale, as a Site collection is the smallest entity you can put inside a content database Site collections will allow you to offer different levels of SLAs, because you put a site collection on a separate content database, and put that database on a separate server. Site collections are a security boundary – and they can be moved around at will without affecting other site collections. Site collections are also a branding boundary. They are also a feature deployment boundary, so you can have two site collections on the same web application with completely different nature of services. But site collections break navigation, i.e. a site collection at “/”, and a site collection at “/sites/mySiteCollection”, are completely independent of each other. If you have access to both, the navigation of / won’t show you a link to /sites/mySiteCollection. Some people refer to this as a huge issue in SharePoint. Luckily, some workarounds exist. A long time ago, I had blogged about “Implementing Consistent Navigation across Site Collections”. That approach was a no-code solution, it worked – it gave you a consistent navigation across site collections. But, it didn’t work in a security trimmed fashion! i.e., if I don’t have access to Site Collection ‘X’, it would still show me a link to ‘X’. Well this project gets around that issue. Simply deploy this project, and it’ll give you a WebPart. You can use that WebPart as either a webpart or as a server control dropped via SharePoint designer, and it will give you Security Trimmed Cross Site Collection Navigation. The code has been written for SP2010, but it will work in SP2007 with the help of http://spwcfsupport.codeplex.com . What do I need to do to make it work? I’m glad you asked! Simple! Deploy the .wsp (which you can download here). This will give you a site collection feature called “Winsmarts Cross Site Collection Navigation” as shown below. Go ahead and activate it, and this will give you a WebPart called “Winsmarts Navigation Web Part” as shown below: Just drop this WebPart on your page, and it will show you all site collections that the currently logged in user has access to. Really it’s that easy! This is shown as below - In the above example, I have two site collections that I created at /sites/SiteCollection1 and /sites/SiteCollection2. The navigation shows the titles. You see some extraneous crap as well, you might want to clean that – I’ll talk about that in a minute. What? You’re running into problems? If the problem you’re running into is that you are prompted to login three times, and then it shows a blank webpart that says “Loading your applications ..” and then craps out!, then most probably you’re using a different authentication scheme. Behind the scenes I use a custom WCF service to perform this job. OOTB, I’ve set it to work with NTLM, but if you need to make it work alternate authentications such as forms based auth, or client side certs, you will need to edit the %14%\ISAPI\Winsmarts.CrossSCNav\web.config file, specifically, this section - 1: <bindings> 2: <webHttpBinding> 3: <binding name="customWebHttpBinding"> 4: <security mode="TransportCredentialOnly"> 5: <transport clientCredentialType="Ntlm"/> 6: </security> 7: </binding> 8: </webHttpBinding> 9: </bindings> For Kerberos, change the “clientCredentialType” to “Windows” For Forms auth, remove that transport line For client certs – well that’s a bit more involved, but it’s just web.config changes – hit a good book on WCF or hire me for a billion trillion $. But fair warning, I might be too busy to help immediately. If you’re running into a different problem, please leave a comment below, but the code is pretty rock solid, so .. hmm .. check what you’re doing! BTW, I don’t  make any guarantee/warranty on this – if this code makes you sterile, unpopular, bad hairstyle, anything else, that is your problem! But, there are some known issues - I wrote this as a concept – you can easily extend it to be more flexible. Example, hierarchical nav, or, horizontal nav, jazzy effects with jquery or silverlight– all those are possible very very easily. This webpart is not smart enough to co-exist with another instance of itself on the same page. I can easily extend it to do so, which I will do in my spare(!?) time! Okay good! But that’s not all! As you can see, just dropping the WebPart may show you many extraneous site collections, or maybe you want to restrict which site collections are shown, or exclude a certain site collection to be shown from the navigation. To support that, I created a property on the WebPart called “UrlMatchPattern”, which is a regex expression you specify to trim the results :). So, just edit the WebPart, and specify a string property of “http://sp2010/sites/” as shown below. Note that you can put in whatever regex expression you want! So go crazy, I don’t care! And this gives you a cleaner look.   w00t! Enjoy! Comment on the article ....

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  • Correctly calling setGridWidth on a jqGrid inside a jQueryUI Dialog

    - by Dan
    I have a jQueryUI dialog (#locDialog) which has a jqGrid ($grid) inside it. When the Dialog opens (initially, but it gets called whenever it opens), I want the $grid to resize to the size of the $locDialog. When I do this initially, I get scrollbars inside the grid (not inside the dialog). If I debug the code, I see the width of the $grid is 677. So, I call setGridWidth() again and check the width and now I have 659, which is 18px less, which is the size of the scroll area for the jqGrid (Dun-dun-dun..) When I rezie the dialog, I resize the grid as well, and everything is happy - no scrollbars, except where necessary. My dialog init code: $locDialog = $('#location-dialog').dialog({ autoOpen: false, modal: true, position: ['center', 100], width: 700, height:500, resizable: true, buttons: { "Show Selected": function() {alert($('#grid').jqGrid('getGridParam','selarrrow'));}, "OK": function() {$(this).dialog('close');}, "Cancel": function() {$(this).dialog('close');} }, open: function(event, ui) { $grid.setGridHeight($(this).height()-54); // No idea why 54 is the magic number here $grid.setGridWidth($(this).width(), true); }, close: function(event, ui) { }, resizeStop: function(event, ui) { $grid.setGridWidth($locDialog.width(), true); $grid.setGridHeight($locDialog.height()-54); } }); I am curious if anyone has seen this before. Really, it isn't the end of the world if I initially have unnecessary scrollbars at first, but it is just odd that when I call setGridWidth initially, it doesn't take into account the scroll area of 18px. As far as the magical number 54, that is the number I had to subtract from the height of the dialog value to get the grid to render without unnecessary scrollbars.

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  • Logic inside an enum

    - by Vivin Paliath
    My colleagues and I were having a discussion regarding logic in enums. My personal preference is to not have any sort of logic in Java enums (although Java provides the ability to do that). The discussion in this cased centered around having a convenience method inside the enum that returned a map: public enum PackageTypes { Letter("01", "Letter"), .. .. Tube("02", "Packaging Tube"); private String packageCode; private String packageDescription; .. .. public static Map<String, String> toMap() { Map<String, String> map = new LinkedHashMap<String, String>(); for(PackageType packageType : PackageType.values()) { map.put(packageType.getPackageCode(), packageType.getPackageDescription()); } return map; } } My personal preference is to pull this out into a service. The argument for having the method inside the enum centered around convenience. The idea was that you don't have to go to a service to get it, but can query the enum directly. My argument centered around separation of concern and abstracting any kind of logic out to a service. I didn't think "convenience" was a strong argument to put this method inside an enum. From a best-practices perspective, which one is better? Or does it simply come down to a matter of personal preference and code style?

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  • Facebook Connect application inside iframe not working in IE7

    - by Antoine Aubry
    I am building a Facebook Connect application that runs inside a Google gadget. Being a gadget means that the application runs inside an iframe. Inside the application, there is a form that allows registered users to post comments. The submission is made using AJAX, but I get the same results with a normal form. The problem is that I need to get the user's facebook id. In Firefox, it works fine, but on Internet Explorer 7, I get the following error: 'A session key is required for calling this method' I believe that this is due to the way IE handles third-party cookies, because if I go to Internet options / Privacy / Advanced, and check Override automatic cookie handling and accept all cookies, it works fine. I cannot pass the Facebook id from the javascript, because anyone could tamper it. EDIT: If I open the content of the iframe directly, the app works fine. The problem is really due to the IFRAME and IE security model. What am I doing something wrong? How can I work around this problem?

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  • A dynamic array of class "landmark", inside another single class "landmarks"

    - by pinnacler
    I'm working on a robot localization simulator and I created a class called "landmark". The end result is going to be a robot that is always centered and always faces the top of the screen. As it turns, the birds eye view map will rotate around the robot. To accomplish this, I'm assuming I can rotate one class and have all elements inside rotate as well. So, the landmark class has properties x,y, label, and radius. This is suppose to simulate a tree location in a forest. To test everything, I need "forest data," and I wrote a script to generate 100 trees in a 100m x 100m area. The script automatically generates values within an acceptable range for x,y, radius. The generated data is stored in an object called tempForest and is 100x3. Ideally, I want to create a class called "landmarks" (plural) that has 100 landmark instances inside. How would I instantiate 100 instances of landmark in one instance of landmarks using that randomly generated data? Ideally, I'd just type treeBeacons = landmarks(); and it would randomly populate 100 (user definable, set in config file) instances with x, y, radius data. I'm not sure how to deal with a dynamic array of class "Landmark", inside another single class "landmarks." Any ideas?

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  • Problem with giving focus to first element inside a container

    - by rahul
    Hi, I am just trying to cycle the focus between elements inside a particular element when the tab key is pressed. What I want to do is not to set focus to any element which is not a descendant of an element when tab is pressed from the last control inside the element. At that time the focus must be set to the first input element inside the container. I have done a sample and it its not working, and I am unable to figure out the issue. Sample can be found here The complete code is Script $(function(){ $(":input:last","#div1").bind("keydown", function(e){ if ( e.keyCode === 9 ) { var firstElem = $(":input:first","#div1"); firstElem.focus(); } }); }); CSS input.red { width: 200px; border: solid 1px red; } input { width: 200px; } HTML <input type="text" class="red" /> <div id="div1"> <input type="text" id="txt1" /> <select id="sel1"> <option>1</option> </select> <input type="text" id="txt2" /> </div> Any help would be appreciated. Thanks

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