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• Real time web services

  - by daliz

  Hi everybody, I have a little (maybe the answer could require a book) question about web services and server side programming. But first, a little preamble. Recently we have seen new kind of applications & games using some kind of real-time interaction with a database, or more generally, with other users. I'm talking about shared drawing canvas, games like this , or simple chats, or the Android app "a World of Photo", where in real time you see who is online, to share your photos, etc. Now my question: Are all these apps based on classic TCP client/server architectures or is there a way to make them in a simpler way, like a web platform like LAMP? What I'm asking, in other words is: Can PHP+MySQL (or JSP, or RoR, or any other server language) provide a way to make online users communicate in real time and share data? Is there a way to do that without the ugly and heavy mechanism of temporary tables? Thank you! I hope I've been clear.

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• Removing stopwords,but should return as a line

  - by Sarath R Nair

  My question may appear silly. But as I am a rookie in Python , help me out. I have to pass a line to a stopword removal function. It works fine. But my problem is return of the function is appending the words. I want it as like follows: line = " I am feeling good , but I cant talk" Let "I,but,cant" are stopwords. After passing to the function , my output should be as "am feeling good , talk". What I a getting now is [['am','feeling','good','talk']]. Help me.

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• How to fix rotations in a Rubik's Cube?

  - by Eindbaas

  I'm trying to create a Rubik's Cube in Flash & Papervision and i'm really stuck here. I'm up to the point where i can rotate any plane of cubes once, but after that...it's messed up because all local coordinate systems are messy. I dont really know where to go from here, can anybody give any advice on what do do? I'm not looking for 'read about transformation matrices', i know i should (and i am doing that), but i'm not really sure what to look for. My idea is that, after each rotation, i should fix each coordinate system of each cube again, but i have no idea how. Any hints on what i want to achieve (in words), and why, are much appreciated. http://dl.dropbox.com/u/250155/rubik/main.html (you can press the K key once ;) )

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• bruteforce script

  - by oshirowanen

  I have forgotten my passphrase for my gpg key on linux. Can someone please help me write a simple script to use bruteforce to crack the key? I remember show of the words which MIGHT be in the passphrase, so hopefully, it will not take long for my computer to bruteforce it. All is not lost of I can't recover the passphrase, it just means I will not be able to work on my project for the next 10 days until I get back to work to get another copy of the files, but this time with a new key for which I will remember to passphrase.

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• Is it possible for a Perl subroutine to force its caller to return?

  - by Kinopiko

  If I have Perl module like package X; and an object like my $x = X->new (); Inside X.pm, I write an error handler for $x called handle_error, and I call it sub check_size { if ($x->{size} > 1000) { $x->handle_error (); return; } } Is there any way to make handle_error force the return from its caller routine? In other words, in this example, can I make handle_error do return in check_size without actually writing return there?

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• Altering CSS for nav bar images to accomodate IE

  - by Kim

  My horizontal nav bar is populated with images for the links that are coming from one image that includes all the sub-images; each nav item image is identified by the pixel location within the larger image. This works perfectly fine in Firefox and Safari, but in IE, all of the images are misplaced too low within the nav bar (can only barely see the tops of the words). Two questions: How do I fix this in the css so it is back-compatible with the more recent versions (and current versions) of IE Do I need a separate IE stylesheet? Thanks!

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• Objective PHP and key value coding

  - by Lukasz

  Hi Guys. In some part of my code I need something like this: $product_type = $product->type; $price_field = 'field_'.$product_type.'_price'; $price = $product->$$price_field; In other words I need kind of KVC - means get object field by field name produced at the runtime. I simply need to extend some existing system and keep field naming convention so do not advice me to change field names instead. I know something like this works for arrays, when you could easily do that by: $price = $product[$price_field_key]. So I can produce key for array dynamically. But how to do that for objects? Please help me as google gives me river of results for arrays, etc... Thank you

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• How to wrap text of html button with fixed width

  - by Peter

  I just noticed that if you give a html button a fixed width, the text inside the button is never wrapped. I've tried it with word-wrap, but that cuts of the word even though there are spaces available to wrap on. How can I make the text of an html button with a fixed width wrap like any tablecell would? <td class="category_column"> <input type="submit" name="ctl00$ContentPlaceHolder1$DataList1$ctl12$ProCat_NameButton" value="Roos Sturingen / Sensors" id="ctl00_ContentPlaceHolder1_DataList1_ctl12_ProCat_NameButton" class="outset" style="height:118px;width:200px;font-size:18px;color:#7F7F7F;width:200px;white-space:pre;" /> </td> the css classes do nothing but adding borders and modify the padding. If I add word-wrap:break-word to this button, it will wrap it like this: Roos Sturingen / Sen sors And I dont want it to cut of in the middle of a word if it is possible to cut it off between words. Thanks

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• SimpleModal bug when positioning HTML5 video

  - by digm

  I am trying to use simple modal to display a modal window containing a video. I'm using the HTML5 "video" tag to do this. Using JQuery and SimpleModal, I can get it working in Chrome and Firefox, but for some reason Safari fails to maintain the centered positioning of the modal dialog for the video. In other words, when you scroll up and down in the windows, the modal window stays in its place, but the video scrolls up and down with the rest of the content outside the window. I've put together a 29 line piece of HTML code that you can cut and paste to test. https://pastee.org/z5sw Anyone know what I can do to fix this? I've been trying for a few hours now and no combination of JQuery, SimpleModal, or CSS changes can seem to fix this. I'd appreciate any suggestions. Thanks in advance!

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• Validation Rules in Webtesting using VS2010

  - by Lexipain

  I'm creating a simple webtest (Recorded Web performance test) that makes sure that a correct error message is displayed if i try to login with a username that does not exist. However, there are two types of error messages that handle incorrect login info. One is for all the usernames that do not exist and therefore are not allowed, and the other is for usernames that start with the letter 'Q' (which is not allowed for a few reasons). Now what i want to do is use the 'Find Text' validation rule and the test should pass if ONE of the 'Find Text' parameters is found, and in that case i want the second 'Find Text' rule to be ignored so it doesn't fail the test. In other words the test should always pass if one of the 'Find Test' rules is found. How can i achieve that? Is there some if,else statement that i can use for this?

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• Android Market, Search results position Mystery.

  - by Paul G.

  How is an app's position in the Android Market search results determined? Is it as mysterious and complex as Google Web search results? We obviously don't want to change any words in our app's title or description that would hurt our position. Same question applies for not only search results, but when clicking on a Category in the Android Market. How is the order of the list determined? Hopefully someone here can help. I would think that Google would have published some guidelines at least that could help, but I haven't found anything yet.

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• casting unused return values to void

  - by markh44

  int fn(); void whatever() { (void) fn(); } Is there any reason for casting an unused return value to void, or am I right in thinking it's a complete waste of time? Follow up: Well that seems pretty comprehensive. I suppose it's better than commenting an unused return value since self documenting code is better than comments. Personally, I'll turn these warnings off since it's unnecessary noise. I'll eat my words if a bug escapes because of it...

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• How can I store data in a table as a trie? (SQL Server)

  - by Matt

  Hi, To make things easier, the table contains all the words in the English dictionary. What I would like to do is be able to store the data as a trie. This way I can traverse the different branches of the trie and return the most relevant result. First, how do I store the data in the table as a trie? Second, how do I traverse the tree? If it helps at all, the suggestion in this previous question is where this question was sparked from. Please make sure it's SQL we're talking about. I understood the Mike Dunlavey's C implementation because of pointers but can't see how this part (The trie itself) works in SQL. Thanks, Matt

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• Google Analytics Widget Tracking

  - by Kevin Lamb

  Hello, I have a form that is generated on a customer's website (lets say customer.com) with javascript that a user fills out and it sends to my site (app.com). I would like to be able to provide information to the customer such as how effective their AdWords campaign was and what search engines users used to end up filling out the form. I have started looking at the multiple domain linking option but I am not sure this is the right way. Is there a way to query what search engine and key words they used and pass this along with the form?

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• jQuery selector for document and another element

  - by James

  Can I merge these in jQuery? I'm using the HotKeys plugin. $(document).bind('keydown', 'n', cycleNoise); $(document).bind('keydown', 's', pickRandom); $(document).bind('keydown', 'v', toggleTasks); $(document).bind('keydown', 't', toggleTimer); $(document).bind('keydown', 'up', hideTask); $(document).bind('keydown', 'down', nextTask); $('#duration').bind('keydown', 't', toggleTimer); $('#duration').bind('keydown', 'n', cycleNoise); $('#duration').bind('keydown', 's', pickRandom); $('#duration').bind('keydown', 'v', toggleTasks); $('#duration').bind('keydown', 'up', hideTask); $('#duration').bind('keydown', 'down', nextTask); In other words, is it possible to use document and '#duration' in the same selector. The following doesn't seem to work: $(document + ',#duration').bind(...);

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• What's your favorite stupid error message?

  - by Robusto

  Here's my candidate, just encountered, from an automated Java build. I just had to share it. "Composite step 'master' failed due to unsatisfication of success condition." In other words, it failed because it didn't succeed. Uh, thanks. I feel so much more ... what's the word I'm looking for here? Ah, enlightened. I think it would be fun to hear yours, and I'm sure you have plenty. I really enjoyed the best programmer jokes that appeared here earlier, so maybe this will bring a few smiles and lighten the load in a similar fashion. (I searched for something similar on SO, but didn't find anything.)

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• WHERE clause confusion with PDO

  - by Greg

  I'm having some trouble understanding how to use prepared statements, when you need to match one value against several columns at once. In other words what instead of doing this: $stmt = $dbh-prepare("SELECT * FROM REGISTRY where name = ?"); $stmt-bindParam(':name', $name); I wanted to do this: $stmt = $dbh-prepare("SELECT * FROM REGISTRY where firstname = ? or lastname = ?"); with both '?' representing the same string.

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• C#, WPF. Length of string that will fit in a specific width.

  - by Ian

  Hi, I'm sure I'm missing something obvious, I have an area in which I intend to draw text. I know its (the area) height and width. I wish to know how many characters/Words will fit in the width, characters preferably. Second question, If the line is too long I'll want to draw a second line, so I guess I need to get the height of the text as well, including what ever it considers the right vertical padding? I'd also rather like to know the inverse, i.e. how many characters I can fit in a specific width. I assume the fact that WPF isn't constrained to pixels will have some bearing on the answer? Ultimately I'm planning on wrapping text around irregular shaped images embedded in the text. Any pointers in the right direction would be great. Thanks

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• Java: Get Mainform object from JInternalFrame

  - by rodion

  Can I do this without reference to the object in the constructor? In other words, any class inherited from FrmTaoChild when creating must to add the button on the toolbar of the main window public class FrmTaoMain extends JFrame { JToolBar tbTask = new JToolBar(); public FrmTaoMain(String Caption) { super(Caption); ... FrmTaoChild FrmChild = new FrmTaoChild(tbTask,"test"); } } public class FrmTaoChild extends JInternalFrame { public FrmTaoChild(JToolBar tbTask, String Caption) { super (Caption); JButton btnTask = new JButton(Caption); tbTask.add(btnTask); } }

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• Cufon multiple fonts - How?

  - by Jared

  Hi, I am trying to implement 2 cufon fonts on the same page for the first time. Its not working. In the documentation this is provided as an example: <script src="Vegur_300.font.js" type="text/javascript"></script> <script src="Myriad_Pro_400.font.js" type="text/javascript"></script> <script type="text/javascript"> Cufon.replace('h1', { fontFamily: 'Vegur' }); Cufon.replace('h2', { fontFamily: 'Myriad Pro' }); </script> The thing I dont understand is - what is the link between fontFamily: 'Vegur' and the actual Vegur_300.font.js file? In other words, how does the browser know that 'Vegur' is that particular file? thanks in advance

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• Java: Parse Australian Street Addresses

  - by bguiz

  Looking for a quick and dirty way to parse Australian street addresses into its parts: 3A/45 Jindabyne Rd, Oakleigh, VIC 3166 should split into: "3A", 45, "Jindabyne Rd" "Oakleigh", "VIC", 3166 Suburb names can have multiple words, as can street names. See: http://stackoverflow.com/questions/1739746/parse-a-steet-address-into-components Has to be in Java, cannot make http requests (e.g. to web APIs). EDIT: Assume that format specified is always followed. I have no issue with spitting incorrectly formatted strings back at the user with a message telling them to follow the format (which I've described above).

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• CSS class equivalent for LaTeX

  - by Ryan Scott Bardsley

  I am trying to figure out if there is a way to apply the CSS methodology to the LaTeX template I am building. What I would like to do is to have a set of classes that apply a specific style treatment to the bracketed words. For example: If I have three paragraphs of text, I want to have all of the paragraphs have [0.5cm] of spacing after the last line without having to add \\[0.5cm] after each paragraph. Is there a LaTeX equivalent of defining the treatment for all paragraphs in the preamble so that it cascades throughout my document? The equivalent of: <style> p {padding-bottom:0.5cm} </style> I want to be able to specify multiple version of these CSS-like LaTeX classes throughout my document, so I don't need a specific solution. I need help understanding how to add custom labels/names/classes to the preamble and an example of how to use them in the document itself. Thanks! Ryan

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• Custom Lucene Sharding with Hibernate Search

  - by Timo Westkämper

  Has anyone experience with custom Lucene sharding / paritioning using Hibernate Search? The documentation of Hibernate Search says the following about Lucene Sharding : In some cases, it is necessary to split (shard) the indexing data of a given entity type into several Lucene indexes. This solution is not recommended unless there is a pressing need because by default, searches will be slower as all shards have to be opened for a single search. In other words don't do it until you have problems :) Has anyone implemented sharding in such a way for Hibernate Search that also queries can be target to one of the shards? In our case we have Lucene queries that should target only one shard per query.

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• Sub-process /usr/bin/dpkg returned an error code (1)

  - by Delirium tremens

  I'm trying to find a parental control for Ubuntu that turns adult site words into *. I have tried webcontentcontrol (doesn't even ask me to set a password), mobicip (doesn't even get listed in package names). My family can see my adult bookmark names and that's really embarrassing. I tried sudo apt-get remove webcontentcontrol sudo apt-get -f install sudo apt-get upgrade sudo pkill webcontentcontrol sudo apt-get remove webcontentcontrol but still can't uninstall it. Googling for that error message resulted in a solution that is first said dangerous, later said wrong. After sudo apt-get remove webcontentcontrol, I always get the error message "Sub-process /usr/bin/dpkg returned an error code (1)". What should I do? The full error message is in brazilian portuguese. Should I post it anyway? I have just installed nanny, but while webcontentcontrol is installed, it doesn't load.

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• Renaming and Moving Files in Bash or Perl

  - by Katie

  HI, I'm completely new to Bash and StackOverflow. I need to move a set of files (all contained in the same folder) to a target folder where files with the same name could already exist. In case a specific file exists, I need to rename the file before moving it, by appending for example an incremental integer to the file name. The extensions should be preserved (in other words, that appended incremental integer should go before the extension). The file names could contain dots in the middle. Originally, I was thinking about comparing the two folders to have a list of the existing files (I did this with "comm"), but then I got a bit stuck. I think I'm just trying to do things in the most complicated possible way. Any hint to do this in the "bash way"? It's OK if it is done in a script other than bash script.

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