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• functional-style datatypes in Python

  - by Danny Roberts

  For anyone who's spent some time with sml, ocaml, haskell, etc. when you go back to using C, Python, Java, etc. you start to notice things you never knew were missing. I'm doing some stuff in Python and I realized what I really want is a functional-style datatype like (for example) datatype phoneme = Vowel of string | Consonant of voice * place * manner datatype voice = Voiced | Voiceless datatype place = Labial | Dental | Retroflex | Palatal | Velar | Glottal datatype manner = Stop | Affricate | Fricative | Nasal | Lateral type syllable = phoneme list Does anyone have a particular way that they like to simulate this in Python?

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• JQuery Autocomplete - format listing and only return a part to the text box

  - by Jason

  I'm using the JQuery Autocomplete and it's working just fine. I'm using it to allow someone to search for users out of a database by searching on last name or id number. Right now the drop down list that is created is the resultes of a SQL query and looks something like: $row_rst['lName'] . ', ' . $row_rst['fName'] . " - " . $row_rst['user'] . "|" . $row_rst['id'] which outputs something like: Jones, Henry - hjones Gibbons, Peter - pgibbons When I pick Henry the text box gets Jones, Henry - hjones and the hidden field gets his id. I'd like to format the drop down in columns if possible and only return Jones, Henry to the text box if possible. Are either of those options possible? I'm thinking it has to do with either formatItem(row) or formatResult(row) but I'm not sure and I can't seem to find how to go about this.

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• Ruby on Rails equivalent for Maven Archetypes

  - by Drew

  Maven Archetypes are handy ways to get a project up and going in no time flat. Rails is kinda like an archetype in and of itself. However, I'm curious to know if there are any Rails equivalents for Maven Archetypes. For example, I want to create an Archetype with full authentication already built in via Authlogic. With Maven Archetypes I would need to build a project with it already ready to go, create my archetype and start working back parameterizing things that should be parameterized. Then anyone can make a Rails project with Authlogic set up by filling out a few questions during the archetype generate command and boom! Fully functional Rails app with Authlogic built in. Is there a Rails Equivalent? Are Generators expected to do this? Is this just not Rails-y?

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• c# windows forms link button to listview

  - by Richard

  Hi, I am using c# windows forms. I have multiple buttons linked to a listview which when a button is pressed, a new item is added to the listview. The column headers in the listview are 'Name' and 'Amount'. When a different button is pressed, a different item is added to the listview. The thing i need help with is as follows: When the same button is pressed twice, I want the amount to go from "1" to "2" on the second click. So the item name isnt duplicated but the amount is increase. The problem is I am using text to link the button to the linklist at the moment e.g. ("Coca Cola", "1") which adds the item name as coca cola and the amount as 1. I know it is something to do with integers so please help!! Thanks

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• iPhone: Changing CGImageAlphaInfo of CGImage

  - by TechZen

  I have a PNG image that has an unsupported bitmap graphics context pixel format. Whenever I attempt to resize the image, CGBitmapContextCreate() chokes on the unsupported format (Error formatted for easy reading): CGBitmapContextCreate: unsupported parameter combination: 8 integer bits/component; 32 bits/pixel; 3-component colorspace; kCGImageAlphaLast; 1344 bytes/row. The list of supported pixel formats definitely does not support this combination. It appears I need to redraw the image and move the alpha channel information to kCGImageAlphaPremultipliedFirst or kCGImageAlphaPremultipliedLast. I have no idea how to go about doing this. There is nothing unusual about the PNG file and it isn't corrupted. It works in all other context just fine. I encountered this error just by chance but obviously my users might have similarly formatted files so I will have to check my app's imported images and correct for this problem.

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• OPENGLES 2.0 equivalent of glorthof?

  - by Zippo

  Hi Guys, In my iphone app, i need to project 3d scene into the 2D coordinates of the screen for some calculations. My objects go through various rotations, translations and scaling. So i figured i need to multiply the vertices with ModelView matrix first, then i need to multiply it with the Orthogonal projection matrix. First of all am on the right track? I have the Model View Matrix, but need the projection matrix. Is there a glorthof equivalent in ES 2.0? PS: i am new to opengl. Thanks for your help. Zippo

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• Java Prepared Statement arguments!

  - by Epitaph

  I am planning to replace repeatedly executed Statement objects with PreparedStatement objects to improve performance. I am using arguments like the MySQL function now(), and string variables. Most of the PreparedStatement queries I have seen contained constant values (like 10, and strings like "New York") as arguments used for the "?" in the queries. How would I go about using functions like now(), and variables as arguments? Is it necessary to use the "?"s in the queries instead of actual values? I am quite confounded.

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• How to automate disbursement of electronic payments from one bank account to 20,000 other bank accou

  - by Dylan West

  I am helping a startup business to launch and I will be building or finding a shopping cart software for its website. There will only be one product for sale, but anytime someone buys a product, I have to use customer information like their zipcode and which distributor they bought from to calculate commissions that will go to the different distributors. All the incoming money will be sent to one sort of escrow account for a few weeks, and after that few weeks is over, I need to be able to "throw the switch" and cause each of the 20,000 distributors to get their rightful share of that escrow account, depending on the data stored that reflects their sales activity and commissions due. Is this something I can write a script to handle? Better yet, is this something an inexpensive or open source solution can handle, or something that can be setup in something like Paypal? Or is a better approach to somehow create a webpage where each distributor can login to and see their commissions due and initiate the account transfer on their own, but the web app restrict them from transferring more than what they're due? Thanks

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• Android TelephonyManager.getNetworkType() returned constant values in bearer speed order?

  - by Rob Shepherd

  TelephonyManager.getNetworkType() returns one of the constant values. It appears that the constant values have an integer order, by possible bearer link speed. I know using constant values used in the following manner is generally bad, however could one use this to determine a basic cutoff for application functionality and have it work between API levels? (in API-v1 there was nothing above 0x03) if( telephonyManager.getNetworkType() > TelephonyManager.NETWORK_TYPE_EDGE ) { return "3G! party on!"; } else if( telephonyManager.getNetworkType() > TelephonyManager.NETWORK_TYPE_UNKNOWN ) { return "2G, OK. just don't go nuts!"; } else { return "No data sorry" }

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• faceBook Canvas APP not closing FB.Connect.showPermissionDialog

  - by Paresh

  My FB application is using the below code to generate the FB.Connect.showPermissionDialog box. <?php if($fb->api_client->users_hasAppPermission("publish_stream",$fb_user)==0) { ?> <script> FB.ensureInit(function(){ FB.Connect.showPermissionDialog("publish_stream", function() { },false,266167740665); }); </script> <?php } ?> The php if statement is for a check if the user has granted this permission previously or not. It is working fine and if the user hasn't granted permission before then FB.Connect.showPermissionDialog is displayed, which prompts for the permission. My problem is that on "Granting" or "Skipping" the permission by the user the dialog box doesn't go away. It resides over there and refreshes itself to open the facebook home page inside the box. It has to be forcefully closed by clicking on the X button. Am I doing any thing wrong?

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• How to implement SAML SSO

  - by A_M

  How is SAML SSO typically implemented? I've read this about using SAML with Google Apps, and the wikipedia entry on SAML. The wikipedia entry talks about responding with forms containing details of the SAMLRequest and SAMLResponse. Does this mean that the user has to physically submit the form in order to proceed with the single sign on? The google entry talks about using redirects, which seems more seemless to me. However, it also talks about using a form for the response which the user must submit (although it does talk about using JavaScript to automatically submit the form). Is this the standard way of doing this? Using redirects and JavaScript for form submission? Does anyone know of any other good resources about how to go about implementing SSO between a Windows Domain and a J2EE web application. The web application is on a separate network/domain. My client wants to use CA Siteminder (with SAML).

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• Establish draggable content constraints depending on position

  - by drukelly

  Asking all jQuery experts! How would I go about setting up constraints for a draggable element depending on its positioning? I have a basic example here. I thought it would be as simple as adding an option, containment. Ideally, I want it to drag within the following box: top: 0px left: 0px top: -263px left: -272px top: 0px left: -272px top: -263px left: 0px Is there a way to drag the element within the parameters above so you don't the extra white space? I appreciate the help!

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• TFS and SVN code Merge

  - by Mohanavel

  We are a small team of 8. 3 are from other country and they are using the Source controller as TFS and TFS server is also located there and they have only 4 licence. So we (5 developers) are using SVN source controller as local source controller and for every 3 days we are taking the TFS latest and merging the changes from and to SVN & TFS. Really this is overkilling and hour consuming task. They don't want to change the TFS ( Not event add ins ). So what i can use to merge the code between two source controllers. Is it i can use SVN-Bridge to Merge the code without changing or modifying the TFS Server. Please guide me on this. (Worst case they might go for add ins, for sure no other source controllers than Microsoft Product) hhhmmmmmm, i'm sitting in front of monitor and hitting the F5 on this page, Please save my hours.

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• Comparing two List<MyClass> in C#

  - by Matt

  I have a class called MyClass This class inherits IEquatable and implements equals the way I need it to. (Meaning: when I compare two MyClass tyupe objects individually in code, it works) I then create two List: var ListA = new List<MyClass>(); var ListB = new List<MyClass>(); // Add distinct objects that are equal to one another to // ListA and ListB in such a way that they are not added in the same order. When I go to compare ListA and ListB, should I get true? ListA.Equals(ListB)==true; //???

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• AJAX in Drupal Forms?

  - by Kevin

  How would you go about constructing a step by step form that uses AJAX through Drupal to pull the next form step? For example, Step 1: I like Baseball I don't like Baseball. When that person clicks on either Like or Don't Like, I want to use AJAX to recognize and pull the next part of the form, remove/hide the first section since its not needed, and present the next section. Example: Step 1: I like Baseball *click (fade out) Step 2: My favorite team is __________ The player I like most is __________ What is the best way to do this through Drupal Form API? I know how to build the forms and modules, but I have never used AJAX yet. I know a few things exist out there that are supposed to help, but I wanted to know if anyone here has done it and how they approached it.

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• Getting LEGEND tags to wrap text properly.

  - by DA

  Legend tags are always a nuisance as they don't adhere to a lot of CSS rules. I'm trying to get the text within a LEGEND tag to wrap using the typical solution of wrapping the text in the LEGEND with a span and setting the width and display: block. <legend> <span style="border: 1px solid blue; width: 250px; display: block"> This text should wrap if it gets longer than 250px in width </span> </legend> I thought this used to work In Firefox, but does not appear to work anymore in 3.6. Sample: http://jsbin.com/exeno/5 It still works in IE. Has anyone found a fix for this or is it just a matter of forgoing LEGEND tags and go back to H# tags?

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• What does the obscure javascript error b(e.target).zIndex is not a function mean?

  - by stormist

  To give more information I am using the modular form here: http://jqueryui.com/demos/dialog/#modal-form b(e.target).zIndex is not a function [Break on this error] (function(a){a.widget("ui.mouse",{opti...is._unrotate}return this}})})(jQuery); /js/jquery-ui.min.js I also seem to be getting the error "Too much recursion" too much recursion [Break on this error] 3||a.nodeType===8)){if(a.setInterval&&...this.special[o]||{};if(!t){t=e[o]={}; https://my.dev.peer1.com/js/jquery/jquery-1.4.min.js I know its not much to go on but I was hoping someone might have experience with similar issues.

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• PHP File unreadable after being downloaded

  - by Drew

  Hi I have a script that creates a file and stores it on the server. The file is encoded in UTF-8 and is a kind of xml file for the cmap software. If i open the file directly from the server then there is no problem and the file can be read. I am forcing a download of this file when a user goes to a specific url. After such a download, the file is unreadable by the cmap software. I have to go into my text editor (notepad++) and change the encoding from UTF-8 to UTF-8 without BOM. Am I sending the wrong headers? Is php doing something to the file when it is downloading it? Any advice on this would really be appreciated. Cheers Drew

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• Consuming an .ics in YQL

  - by Josh

  How would one consume an ICS file in YQL? Given an .ics such as: http://www.hebcal.com/export/ba/8a35a5efbb27548bc0272b94b8de96.ics?subscribe=1&v=1&year=2010&month=x&nh=on&tag=fp.ql&c=off How would I go about using YQL to select certain events based on fields, etc. I've tried the standard formats, and the only format that seems to even parse the file is HTML - which puts it all in a <p>, and removes the line returns that give the file meaning. I've had some success with using Yahoo Pipe's Fetch Feed Source, but was wondering if it's possible to do this entirely in YQL. Any ideas?

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• WPF: Setting toolbar button sizes using a Style

  - by Allen Ho

  I have buttons on a toolbar in WPF. When I do the XAML: <ToolBar.Resources> <Style TargetType="{x:Type Button}"> <Setter Property="Width" Value="21"></Setter> <Setter Property="Height" Value="21"></Setter> </Style> </ToolBar.Resources> None of the buttons on the toolbar set their sizes accordingly. I have to go to each button and manually set their widths and heights to the desired values. Any idea why the Style on the toolbar does not work?

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• How do I manage library symbols with linked classes in Flash CS4 to compile/debug in Flash Builder 4

  - by wpjmurray

  I'm building a video player using Flash CS4 (hereby referred to as "Flash") to create the graphic symbols and compiling and debugging with Flash Builder 4 ("FB4"). Here are the steps I take in my current workflow: --Create the graphic symbols in Flash. I've created a few different symbols for the player, but I'll focus on just the play/pause button ("ppbutton") here. --In the Library panel, I go to the ppbutton symbol's Linkage properties and link to a class named assets.PlayPauseButtonAsset that extends MovieClip. I do not actually have an assets package nor do I have a class file for PlayPauseButtonAsset as Flash will create them for me when I publish. --In Flash's Publish settings, I set the project to export a SWC that will be used in FB4, called VideoPlayerAssets.swc. --After the SWC is created, I create my FB4 project called "VideoPlayer" and add the SWC to my path. FB4 creates the class VideoPlayer in the default package automatically. --In VideoPlayer.as, I import assets.*, which imports all of the symbol classes I created in Flash and are available via VideoPlayerAssets.swc. I can now instantiate the ppbutton and add to the stage, like this: var ppbutton:PlayPauseButtonAsset = new PlayPauseButtonAsset(); addChild(ppbutton); At this point ppbutton doesn't have any functionality because I didn't create any code for it. So I create a new class called video.controls.PlayPauseButtonLogic which extends assets.PlayPauseButtonAsset. I add some logic, and now I can use that new class to put a working ppbutton on the stage: var ppbutton:PlayPauseButtonLogic = new PlayPauseButtonLogic(); addChild(ppbutton); This works fine, but you may be asking why I didn't just link the ppbutton symbol in Flash to the video.controls.PlayPauseButtonLogic class in the first place. The reason is that I have a designer creating the UI in Flash and I don't want to have to re-publish the SWC from Flash every time I make a change in the logic. Basically, I want my designer to be able to make a symbol in Flash, link that symbol to a logically named class in Linkage properties, and export the SWC. I do not want to have to touch that .fla file again unless the designer makes changes to the symbols or layout. I'm using a versioning system for the project as well and it's cleaner to make sure only the designer is touching the .fla file. So, finally, here's the issue I'm running into: --As the design gets more complex, the designer is nesting symbols to position the video controls on the control bar. He creates a controlbar symbol and links it to assets.ControlBarAsset. The controlbar symbol contains the ppbutton symbol. --The designer publishes the SWC and ControlBarAsset is now available in FB4. I create new class called video.controls.ControlBarLogic that extends assets.ControlBarAsset so I can add some logic to the controlbar, and I add the controlbar to the stage: var controlbar:ControlBarLogic = new ControlBarLogic(); addChild(controlbar); --This works, but the ppbutton doesn't do anything. That's because ppbutton, while inside controlbar, is still only linked to PlayPauseButtonAsset, which doesn't have any logic. I'm no longer instantiating a ppbutton object because it's part of controlbar. That's where I'm stuck today. I can't seem to simply re-cast controlbar's ppbutton as PlayPauseButtonLogic as I get a Type error. And I don't want to have to make a class that has to instantiate each of the video player controls, the place them at their x and y values on the stage according to how the designer placed them, as that would require me to open the .fla and check the various properties of a symbol, then add those values to the code. If the designer made a change, I'd have to go into the code each time just to update those properties each time. Not good. How do I re-cast nested symbols to use the logic classes that I create that extend the asset classes? Remember, the solution is not to link Flash symbols to actual classes so I don't have to keep recompiling the SWC, unless there's a way to do that without having to re-compile the SWC. I want the designer to do his thing, publish the SWC, and be done with it. Then I can take his SWC, apply my logic to his assets, and be able to debug and compile the final SWF.

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• Effective thread Synchronization in C#

  - by n0vic3c0d3r

  I have a scenario where I need to search from many binary files (using keys) and combine the results (strings). Until now, I have been doing it in a for loop one file after the other. foreach (string file in FileSources.Keys) { aggregatedDefinitions.Append(DefinitionLookup(txtSearchWord.Text, file)); } Since this operation is very slow, I was thinking of using threads, so that I could do IO operations in parallel. Is threading the right way to go. If I use threading, how can I ensure that I get the results in the order I want. I haven't used Threading until now. It would be very helpful if you could suggest some materials/books that would help me solve my problem.

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• Extrange gray rectangle when debugging with monodevelop

  - by SCL

  when I debug with Monodevelop, in Linux Mint, most of the times I get a small gray rectangle on top of the screen. It stays there, on top of any other application even If I minimize monodevelop. It won't go away until I close it. If I click on it, the elements in the background receive the events. I get this problem in two different machines, both with Mint 13 and monodevelop 2.6 and 3. How can I get rid of it?

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• Sql Server 2008 Install

  - by Steve

  I already have Visual Studio 2008 installed. When installing developer Sql Server 2008, do I need to check the Business Intelligence Development Studio option? I'm guessing not. I assume if I already have VS 2008, the install will just add the relevant Sql Server related project types into VS 2008. EDIT: I marked the question answered before I did the install - I've installed Sql Server before and I thought this was what happened, but on doing this install, leaving the BI studio option unchecked does NOT install the SQL Server projects in Visual Studio. I had to go back and install it, so the answer is... Check it! I was overthinking the install - it's smart enough not to install VS twice.

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• What useful GDB scripts have you used/written?

  - by nik

  People use gdb on and off for debugging, of course there are lots of other debugging tools across the varied OSes, with and without GUI and, maybe other fancy IDE features. I would like to know what useful gdb scripts you have written and liked. While, I do not mean a dump of commands in a something.gdb file that you source to pull out a bunch of data, if that made your day, go ahead and talk about it. Lets think conditional processing, control loops and functions written for more elegant and refined programming to debug and, maybe even for whitebox testing Things get interesting when you start debugging remote systems (say, over a serial/ethernet interface) And, what if the target is a multi-processor (and, multithreaded) system Let me put a simple case as an example... Say, A script that traversed serially over entries to locate a bad entry in a large hash-table that is implemented on an embedded platform. That helped me debug a broken hash-table once.

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