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• Python universal feedparser xml

  - by timg

  I am trying to read an xml feed with the python feedparser, but cannot seem to navigate the elements. Here is what I am trying: import feedparser d = feedparser.parse('http://www.website.com/feed') text= d.status.test and here is the xml: <?xml version="1.0" encoding="UTF-8"?> <statuses type="array"> <status> <created>Tue Dec 21 14:16:12 +0000 2010</created> <id>123</id> <text>Hello</text> </status> </statuses>

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• JQuery Remove() doesn't work

  - by Xander Guerin

  I have a DIV element inside another as follows: <div id="filters"> <div class="filterData">hello</div> </div> and I'm trying to remove the element: $("#filters").remove('.filterData'); Problem is, it doesn't. I've tested on other elements on my page and it works. The thing is, I cannot append to it, show or hide it, use .empty. I've also changed it to be a DIV with 'filterData' as the ID and told JQuery to remove it but it refuses to... Has anyone had a stuborn element like this before? EDIT: I'm also trying to remove it inside a $(document).ready function so I have no idea.

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• Is there a way of providing a final transform method when chaining operations (like map reduce) in underscore.js?

  - by latentflip

  (Really strugging to title this question, so if anyone has suggestions feel free.) Say I wanted to do an operation like: take an array [1,2,3] multiply each element by 2 (map): [2,4,6] add the elements together (reduce): 12 multiply the result by 10: 120 I can do this pretty cleanly in underscore using chaining, like so: arr = [1,2,3] map = (el) -> 2*el reduce = (s,n) -> s+n out = (r) -> 10*r reduced = _.chain(arr).map(map).reduce(reduce).value() result = out(reduced) However, it would be even nicer if I could chain the 'out' method too, like this: result = _.chain(arr).map(map).reduce(reduce).out(out).value() Now this would be a fairly simple addition to a library like underscore. But my questions are: Does this 'out' method have a name in functional programming? Does this already exist in underscore (tap comes close, but not quite).

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• Handling JSON and HTML templates in jQuery

  - by Toby Hede

  I have an ajax-enabled site that presents a lot of dynamic content by interpolating JSON values with HTML. This all works fine. BUT it means I have significant amounts of HTML all through my JavaScript. For example: var template = "<div>Foo: {bar}</div><div>Blah: {vtha}</div>"; template.interpolate({bar:"bar",blah:"vtha"}); I have cut this down a fair bit - some of my dynamic elements have quite a lot of HTML and a lot going on. I am using jQuery and I am building on Rails, so if there is something smart in either framework, that would be great. For reference, the String interpolation function used above is: String.prototype.interpolate = function (o) { return this.replace(/{([^{}]*)}/g, function (a, b) { var r = o[b]; return typeof r === 'string' || typeof r === 'number' ? r : a; } ); };

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• A depth (z-index) nightmare.

  - by JCOC611

  The best way to illustrate this question is with...a Fiddle! Before you visit the fiddle, notice there is text behind the grayest element, which is on top of a light gray element that has a border. There is a main wrapping div (root), and two wrapping divs inside (wrap1 and wrap2). The problem here is that I need the content of wrap2 (highlight) to be behind the content of wrap1 (text), but in front of the background of the root. This, however, must not change: The HTML, the elements and wraps should be left untouched. Excluding the order of wrap1 and wrap2 inside root. The highlight div must keep the absolute positioning. Styling highlight with background-color is not an option, the existence of highlight is a must. PS: the italics reference the id's of <div>s in the fiddle example, for whomever was too lazy to visit it.

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• What is the most effective and flexible way to generate combinations in TSQL?

  - by SDReyes

  What is the most effective and flexible way to generate combinations in TSQL? With 'Flexible', I mean you should be able to add easily combination rules. e.g.: to generate combinatories of 'n' elements, sorting, remove duplicates, get combinatories where each prize belongs to a different lottery, etc. For example, Having a set of numbers representing lottery prizes. Number | Position | Lottery --------------------------- 12 | 01 | 67 12 | 02 | 67 34 | 03 | 67 43 | 01 | 89 72 | 02 | 89 33 | 03 | 89 (I include the position column because, a number could be repeated among different lottery's prizes) I would like to generate combinatories like: Numbers | Lotteries ------------------- 12 12 | 67 67 12 34 | 67 67 12 34 | 67 67 12 43 | 67 89 12 72 | 67 89 12 33 | 67 89 . . .

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• Alternative to jQuery .data()?

  - by thebossman

  I'm a big fan of jQuery's .data() method, but I can't always use it. Often times I am rendering html templates that I pass via AJAX and I need to attach metadata to each of the elements in the template. For example: <ul> {% for item in itemlist %} <li metadata="{{ item.metadata }}">{{ item.name }}</li> {% endfor %} </ul> I know attaching attributes to store data is bad practice (and it might not even work in older versions of IE). What is the best practice? Is there a good alternative to this method?

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• Merging contents of two lists based on a if-loop

  - by chavanak

  I have a minor problem while checking for elements in a list: I have two files with contents something like this file 1: file2: 47 358 47 48 450 49 49 56 50 I parsed both files into two lists and used the following code to check for i in file_1: for j in file_2: j = j.split() if i == j[1]: x=' '.join(j) I am now trying to get a "0" if the value of file_1 is not there in file_2 for example, value "48" is not there is file_2 so I need to get the output like (with only one space in between the two numbers): output_file: 358 47 0 48 450 49 56 50 I tried using the dictionary approach but I didn't quite get what I wanted (actually I don't know how to use dictionary in python correctly ;)). Any help will be great.

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• Are there any ASP.NET MVC Real Time View Editors?

  - by BenMaddox

  I'm looking for a tool and I'm not even sure of the proper name. Please be patient with me as I explain. I'm doing a lot of html/mvc 2 work. Using the standard MVC 2 view engine, I would like to have an editor that shows real time changes in the browser. If I re-arrange div elements containing standard HTML and some server side components, I would like the browser to update without a manual refresh. Are there any tools that are currently available that would meet that requirement?

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• Icons in Silverlight: Images vs. Vectors

  - by Shnitzel

  I like using the vector drawing feature of Expression Blend to create icons. That way I can change colors easily on my icons without having to resort to an image editor. But my question is... Say I have a treeview control that has an icon next to each tree element and say I have hundreds of elements. Do you think using images is faster - performance wise than using vector icons? B/c I'd rather use vectors but I'm wondering about performance concerns.

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• Dynamic name of NSMutableDictionary?

  - by Bruno

  Hi everyone I load from a txt file many info, and I would like, if possible, to dynamically create NSmutable dictionary with the elements of the txt. For example, each is like that: id of element | date | text What I'm asking is the equivalent of the NSString stringWithFormat:. Can we do the same for an Mutable Dictionary? To be more practical, let's say the NSString *date is equal to "23/12/2009" (for europe). I want to create a dictionary called 23/12/2009 without declaring *23/12/2009 but just something like dictionaryWithFormat: @"%@", date]; I'm stuck on this, and I don't even know if it is possible. If not, what's the best way to approach that? Thanks everyone Regards

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• jQuery: how to find first visible input/select/textarea excluding buttons?

  - by Artem

  I tried $(":input:not(input[type=button],input[type=submit],button):visible:first") but it doesn't find anything. What is my mistake? UPD: I execute this on $(document).load() <script type="text/javascript"> $(window).load(function () { var aspForm = $("form#aspnetForm"); var firstInput = $(":input:not(input[type=button],input[type=submit],button):visible:first", aspForm); firstInput.focus(); }); </script> and in the debug I can see that firstInput is empty. UPD2: I'm in ASP.NET page running under Sharepoint. I've found so far that for some elements it does find them (for fixed ones) and for some don't. :(

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• In LaTeX, is there a way to get long lines along the margins?

  - by Christian Jonassen

  I'm working on a report, and some elements are outside the margins (but some are just barely outside the margins). I was wondering: Is there a way to make two vertical lines, one on each side, along the margins so that one can easily see if it goes outside them? (Googling it, I only found information about margin notes.) A figure is below: |report text goes here| |more text goes also h|ere |and so on and so fort|h It would certainly make correcting these kinds of mistakes very trivial. :) Feel free to post answers that would solve/show this problem in a more "LaTeX-correct" way, if that makes any sense at all.

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• CSS: How the backgrounds can extend the border and overlap?

  - by AlexStack

  I'm designing a navigation bar as shown in image below (a) with the following code: <ul> <li class="unselected">Step 1</li> <li class="selected">Step 2</li> <li class="unselected">Step 3</li> <li class="unselected">Step 4</li> <li class="unselected">Step 5</li> </ul> I want to have one background image for unselected steps (d) and one for the selected step (c). For simplicity let's assume Step 1 and Step 5 use the same background as well. I want to adjust the button background in HTML only with a class name. The question is how can I achieve the result with CSS? I just want to know how background of two neighbor elements can overlap each other?

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• bash: How to evaluate PS1, PS2, ...?

  - by Harry

  Is there any way to 'evaluate' PS1, PS2, etc from within a bash script? Although, I can use alternate means to get all elements of my current PS1, I would really like to be able to reuse its definition instead of using these alternate means. For example, ===================================== PS1 element --> Alternate means ===================================== \u --> $USER \h --> $HOSTNAME \w --> $PWD ... ===================================== I could very well use the 'alternate means' column in my script, but I don't want to. In my PS1, I, for example, use bold blue color via terminal escape sequences which I'd like to be able to simply reuse by evaluating PS1.

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• C++ arrays select square number and make new vector

  - by John Smith

  I have to see which of the following from a vector is a square number then make another vector with only the square numbers For example: (4,15,6,25,7,81) the second will be (4,25,81) 4,25,81 because 2x2=4 5x5=25 and 9x9=81 I started like this: { int A[100],n,r,i; cout<<"Number of elements="; cin>>n; for(i=1;i<=n;i++) { cout<<"A["<<i<<"]="; cin>>A[i]; } for(i=1;i<=n;i++) { r=sqrt(A[i]); if(r*r==A[i]) } return 0; } but I am not really sure how to continue

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• Creating Bordless Windows with custom visual

  - by RHaguiuda

  Hi I'd like to create a custom window using WPF that doesn't look like the regular window. The window I want to create is similar to MacOs window, with title centered (with dropshadow effect), and controls button on left side of the window. I did create a bordless window, but some questions I have: 1 - How can I set it functionality of maximize, minimize and close buttons in XAML (if it's possible)? 2 - How can I define a window template so every new window I create have the same look and feel? 3 - Is it possible to create the Aqua maximize, minimize and close buttons using only elements from WPF (without using images)? How? 4 - How can I make the window move when dragged? Thanks for all help.

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• Forbid public Add and Delete for a List<T>

  - by aaginor

  Hi folks, in my C#-project, I have a class which contains a List public class MyClass { public MyClass parent; public List<MyClass> children; ... } I want to prevent the user of the class from Adding (and Deleting) an Element to the children-List, but he shall still be able to parse its elements. I want to handle the Adding and Deleting within MyClass, providing an AddChild(MyClass item) and DeleteChild(MyClass item) to ensure that, when an item is added to the child list, the parent of that item will be set properly. Any idea how to do this besides implementing my own IList? Thanks in advance, Frank

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• question about missing element in array

  - by davit-datuashvili

  i have following problem from book introduction algorithm second edition by MIT university problem is following An array A[1 . . n] contains all the integers from 0 to n except one. It would be easy to determine the missing integer in O(n) time by using an auxiliary array B[0 . . n] to record which numbers appear in A. In this problem, however, we cannot access an entire integer in A with a single operation. The elements of A are represented in binary, and the only operation we can use to access them is “fetch the j th bit of A[i],” which takes constant time. Show that if we use only this operation, we can still determine the missing inte- ger in O(n) time please help

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• How to access java collection, just like the table in the database, having indexes and LINQ-like que

  - by Shaman

  This task occurs from time to time in my projects. I need to handle a collection of some complex elements, having different attributes, such as login, password_hash, role, etc. And, I need to be able to query that collection, just like I query a table in the database, having only partial data. For example: get all users, with role "user". Or check, if there's a user with login "root" and role "superuser". Removing items, based on same data is also needed. The first attempt I've tried is to use Google collections, Apache collections, and lambdaj. All of them have very similar preicate mechanism, but with a great disadvantage: it is based on iteration, one by one, over the collection of items, which is not good, for often used collections, containing big amounts of data. Could you please suggest me some solution? Thanks.

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• Do "if" statements affect in the time complexity analysis?

  - by FranXh

  According to my analysis, the running time of this algorithm should be N2, because each of the loops goes once through all the elements. I am not sure whether the presence of the if statement changes the time complexity? for(int i=0; i<N; i++){ for(int j=1; j<N; j++){ System.out.println("Yayyyy"); if(i<=j){ System.out.println("Yayyy not"); } } }

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• What can you do in the ant Task.init() method?

  - by skiphoppy

  I'm developing a few custom ant tasks that all need to initialize the same objects. I wanted to initialize those object's in a common superclass that extends from Task, in the init() method. But I see from the lifecycle of an ant task that init() gets called before the tasks child elements and attributes are set. So all of the data I need for initializing those objects is unavailable during init(), if I am reading right. So, why is init() called at this point? What do you even know that you could use in init()? What could it be used for? (And is there some other method that I can rely on to be called before execute(), but after my data is available?)

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• Java, merging two arrays evenly

  - by user2435044

  What would be the best way to merge two arrays of different lengths together so they are evenly distributed in the new array? Say I have the following arrays String[] array1 = new String[7]; String[] array2 = new String[2]; String[] mergedArray = new String[array1.length + array2.length]; I would want mergedArray to have the following elements array1 array1 array1 array2 array1 array1 array1 array2 array1 but if I were to change the size of the arrays to String[] array1 = new String[5]; String[] array2 = new String[3]; String[] mergedArray = new String[array1.length + array2.length]; then I would want it to be array1 array2 array1 array2 array1 array2 array1 array1 basically if it can be helped each array2 element shouldn't be touching each other; exception if array2 has a size larger than array1.

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• Creating quick GUI front ends

  - by Jeenu

  Hi, I wanted to have a GUI front-end for a script that accepts numerous command-line options, most of them are UNIX paths. So I thought rather than typing them in (even with auto-completion) every time, I'd create a GUI front end which contains text boxes with buttons beside them, which when clicked will invoke the file browser dialogue. Later, I thought I'd extend this to other scripts which would sure require a different set of GUI elements. This made me think if there's any existing app that would let me create a GUI dialog, after parsing some kind of description of the items that I want that window should contain. I know of programs like Zenity, but I think it's doesn't give me what I want. For example, if I were to use it for the first script, it'll end up flashing sequence of windows in succession rather than getting everything done from a single window. So, basically I'm looking at some program that lets me create a window from a text description, probably XML or the like. Please suggest. Thanks Jeenu

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• JavaFX InternalFrame or WindowNode

  - by user1493549

  I was looking for an InternalFrame for JavaFX. Apparently I it seems like there is no InternalFrame available. How does one create an MDI application with JavaFX? I have tried to simulate this behavior by using a custom Region that can be dragged around. Is that the way to go? What about typical window elements such as titlebar, possibility to resize etc. Do I have to implement that myself via custom controls? Thanks, miho

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