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  • Is It Worth It To Learn Experimental Languages

    - by Xander Lamkins
    I'm a young programmer who desires to work in the field someday as a programmer. I know Java, VB.NET and C#. I want to learn a new language (as I programmer, I know that it is valuable to extend what I know - to learn languages that make you think differently). I took a look online to see what languages were common. Everybody knows C and C++ (even those muggles who know so little about computers in general), so I thought, maybe I should push for C. C and C++ are nice but they are old. Things like Haskell and Forth (etc. etc. etc.) are old and have lost their popularity. I'm scared of learning C (or even C++) for this same reason. Java is pretty old as well and is slow because it's run by the JVM and not compiled to native code. I've been a Windows developer for quite a while. I recently started using Java - but only because it was more versatile and spreadable to other places. The problem is that it doesn't look like a very usable language for these reasons: It's most used purpose is for web application and cellphone apps (specifically Android) As far as actual products made with it, the only things that come to mind are Netbeans, Eclipse (hurrah for making and IDE with the language the IDE is for - it's like making a webpage for writing HTML/CSS/Javascript), and Minecraft which happens to be fun but laggy and bipolar as far as computer spec. support. Other than that it's used for servers but heck - I don't only want to make/configure servers. The .NET languages are nice, however: People laugh if I even mention VB.NET or C# in a serious conversation. It isn't cross-platform unless you use MONO (which is still in development and has some improvements to be made). Lacks low level stuff because, like Java with the JVM, it is run/managed by the CLR. My first thought was learning something like C and then using it to springboard into C++ (just to make sure I would have a strong understanding/base), but like I said earlier, it's getting older and older by the minute. What I've Looked Into Fantom looks nice. It's like a nice middleman between my two favorite languages and even lets me publish between the two interchangeably, but, unlike what I want, it compiles to the CLR or JVM (depending on what you publish it to) instead of it being a complete compile. D also looks nice. It seems like a very usable language and from multiple sources it appears to actually be better than C/C++. I would jump right with it, but I'm still unsure of its success because it obviously isn't very mainstream at this point. There are a couple others that looked pretty nice that focused on other things such as Opa with web development and Go by GOOGLE. My Question Is it worth learning these "experimental" languages? I've read other questions that say that if you aren't constantly learning languages and open to all languages that you aren't in the right mindset for programming. I understand this and I still might not quite be getting it, but in truth, if a language isn't going to become mainstream, should I spend my time learning something else? I don't want to learn old (or any going to soon be old) programming languages. I know that many people see this as something important, *but would any of you ever actually consider (assuming you didn't already know) FORTRAN? My goal is to stay current to make sure I'm successful in the future. Disclaimer Yes, I am a young programmer, so I probably made a lot of naive statements in my question. Feel free to correct me on ANYTHING! I have to start learning somewhere so I'm sure a lot of my knowledge is sketchy enough to have caused to incorrect statements or flaws in my thinking. Please leave any feelings you have in the comments.

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  • Is it worth to learn Experimental Languages?

    - by Xander Lamkins
    I'm a young programmer who desires to work in the field someday as a programmer. I know Java, VB.NET and C#. I want to learn a new language (as I programmer, I know that it is valuable to extend what I know - to learn languages that make you think differently). I took a look online to see what languages were common. Everybody knows C and C++ (even those muggles who know so little about computers in general), so I thought, maybe I should push for C. C and C++ are nice but they are old. Things like Haskell and Forth (etc. etc. etc.) are old and have lost their popularity. I'm scared of learning C (or even C++) for this same reason. Java is pretty old as well and is slow because it's run by the JVM and not compiled to native code. I've been a Windows developer for quite a while. I recently started using Java - but only because it was more versatile and spreadable to other places. The problem is that it doesn't look like a very usable language for these reasons: It's most used purpose is for web application and cellphone apps (specifically Android) As far as actual products made with it, the only things that come to mind are Netbeans, Eclipse (hurrah for making and IDE with the language the IDE is for - it's like making a webpage for writing HTML/CSS/Javascript), and Minecraft which happens to be fun but laggy and bipolar as far as computer spec. support. Other than that it's used for servers but heck - I don't only want to make/configure servers. The .NET languages are nice, however: People laugh if I even mention VB.NET or C# in a serious conversation. It isn't cross-platform unless you use MONO (which is still in development and has some improvements to be made). Lacks low level stuff because, like Java with the JVM, it is run/managed by the CLR. My first thought was learning something like C and then using it to springboard into C++ (just to make sure I would have a strong understanding/base), but like I said earlier, it's getting older and older by the minute. What I've Looked Into Fantom looks nice. It's like a nice middleman between my two favorite languages and even lets me publish between the two interchangeably, but, unlike what I want, it compiles to the CLR or JVM (depending on what you publish it to) instead of it being a complete compile. D also looks nice. It seems like a very usable language and from multiple sources it appears to actually be better than C/C++. I would jump right with it, but I'm still unsure of its success because it obviously isn't very mainstream at this point. There are a couple others that looked pretty nice that focused on other things such as Opa with web development and Go by GOOGLE. My Question Is it worth learning these "experimental" languages? I've read other questions that say that if you aren't constantly learning languages and open to all languages that you aren't in the right mindset for programming. I understand this and I still might not quite be getting it, but in truth, if a language isn't going to become mainstream, should I spend my time learning something else? I don't want to learn old (or any going to soon be old) programming languages. I know that many people see this as something important, *but would any of you ever actually consider (assuming you didn't already know) FORTRAN? My goal is to stay current to make sure I'm successful in the future. Disclaimer Yes, I am a young programmer, so I probably made a lot of naive statements in my question. Feel free to correct me on ANYTHING! I have to start learning somewhere so I'm sure a lot of my knowledge is sketchy enough to have caused to incorrect statements or flaws in my thinking. Please leave any feelings you have in the comments.

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  • Is it possible to run vim in remote mode on another machine?

    - by Leonid Shevtsov
    Hi, I run an Ubuntu server virtualbox under a Windows host for web development. At the moment I do all editing in Vim running inside PuTTY. It runs pretty well, but lacks some useful features like native copypasting from the host. I know about the remote mode of Vim, but afaik it can only operate on the same machine. Question is, is it possible to make gVim on the windows host proxy all the commands (and the editing) to a Vim instance running on the Linux guest?

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  • How to Import flip video to Final Cut Pro and edit flip video in Final Cut Pro?

    - by Yinahd
    Final Cut Pro is a professional video editing application for Mac users and it is widely used even by many Hollywood people on professional movie post-production. If you are a flip video fan and you want to give professional editing to your flip videos, Final Cut Pro is a great choice. However, Final Cut Pro does not allow raw flip videos to be imported to Final Cut Pro and you will need to convert flip video to Final Cut Pro supported formats.

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  • Learn Many Languages

    - by Phil Factor
    Around twenty-five years ago, I was trying to solve the problem of recruiting suitable developers for a large business. I visited the local University (it was a Technical College then). My mission was to remind them that we were a large, local employer of technical people and to suggest that, as they were in the business of educating young people for a career in IT, we should work together. I anticipated a harmonious chat where we could suggest to them the idea of mentioning our name to some of their graduates. It didn’t go well. The academic staff displayed a degree of revulsion towards the whole topic of IT in the world of commerce that surprised me; tweed met charcoal-grey, trainers met black shoes. However, their antipathy to commerce was something we could have worked around, since few of their graduates were destined for a career as university lecturers. They asked me what sort of language skills we needed. I tried ducking the invidious task of naming computer languages, since I wanted recruits who were quick to adapt and learn, with a broad understanding of IT, including development methodologies, technologies, and data. However, they pressed the point and I ended up saying that we needed good working knowledge of C and BASIC, though FORTRAN and COBOL were, at the time, still useful. There was a ghastly silence. It was as if I’d recommended the beliefs and practices of the Bogomils of Bulgaria to a gathering of Cardinals. They stared at me severely, like owls, until the head of department broke the silence, informing me in clipped tones that they taught only Modula 2. Now, I wouldn’t blame you if at this point you hurriedly had to look up ‘Modula 2′ on Wikipedia. Based largely on Pascal, it was a specialist language for embedded systems, but I’ve never ever come across it in a commercial business application. Nevertheless, it was an excellent teaching language since it taught modules, scope control, multiprogramming and the advantages of encapsulating a set of related subprograms and data structures. As long as the course also taught how to transfer these skills to other, more useful languages, it was not necessarily a problem. I said as much, but they gleefully retorted that the biggest local employer, a defense contractor specializing in Radar and military technology, used nothing but Modula 2. “Why teach any other programming language when they will be using Modula 2 for all their working lives?” said a complacent lecturer. On hearing this, I made my excuses and left. There could be no meeting of minds. They were providing training in a specific computer language, not an education in IT. Twenty years later, I once more worked nearby and regularly passed the long-deserted ‘brownfield’ site of the erstwhile largest local employer; the end of the cold war had led to lean times for defense contractors. A digger was about to clear the rubble of the long demolished factory along with the accompanying growth of buddleia and thistles, in order to lay the infrastructure for ‘affordable housing’. Modula 2 was a distant memory. Either those employees had short working lives or they’d retrained in other languages. The University, by contrast, was thriving, but I wondered if their erstwhile graduates had ever cursed the narrow specialization of their training in IT, as they struggled with the unexpected variety of their subsequent careers.

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  • Examples of bad variable names and reasons [on hold]

    - by user470184
    I'll start with a class in the jdk package : public final class Sdp { should be : public final class SocketsDirectProtocol { Sdp is class name, this is ambigious, should be : Class<?> cl = Class.forName("java.net.SdpSocketImpl", true, null); should be : Class<?> clazz = Class.forName("java.net.SdpSocketImpl", true, null); cl is ambiguous private static void setAccessible(final AccessibleObject o) { should be : private static void setAccessible(final AccessibleObject accessibleObject) { There are various other examples in this class, do you have similar and/or differing examples of variables that were named badly ? package com.oracle.net; public final class Sdp { private Sdp() { } /** * The package-privage ServerSocket(SocketImpl) constructor */ private static final Constructor<ServerSocket> serverSocketCtor; static { try { serverSocketCtor = (Constructor<ServerSocket>) ServerSocket.class.getDeclaredConstructor(SocketImpl.class); setAccessible(serverSocketCtor); } catch (NoSuchMethodException e) { throw new AssertionError(e); } } /** * The package-private SdpSocketImpl() constructor */ private static final Constructor<SocketImpl> socketImplCtor; static { try { Class<?> cl = Class.forName("java.net.SdpSocketImpl", true, null); socketImplCtor = (Constructor<SocketImpl>)cl.getDeclaredConstructor(); setAccessible(socketImplCtor); } catch (ClassNotFoundException e) { throw new AssertionError(e); } catch (NoSuchMethodException e) { throw new AssertionError(e); } } private static void setAccessible(final AccessibleObject o) { AccessController.doPrivileged(new PrivilegedAction<Void>() { public Void run() { o.setAccessible(true); return null; } }); } /** * SDP enabled Socket. */ private static class SdpSocket extends Socket { SdpSocket(SocketImpl impl) throws SocketException { super(impl); } } /** * Creates a SDP enabled SocketImpl */ private static SocketImpl createSocketImpl() { try { return socketImplCtor.newInstance(); } catch (InstantiationException x) { throw new AssertionError(x); } catch (IllegalAccessException x) { throw new AssertionError(x); } catch (InvocationTargetException x) { throw new AssertionError(x); } } /** * Creates an unconnected and unbound SDP socket. The {@code Socket} is * associated with a {@link java.net.SocketImpl} of the system-default type. * * @return a new Socket * * @throws UnsupportedOperationException * If SDP is not supported * @throws IOException * If an I/O error occurs */ public static Socket openSocket() throws IOException { SocketImpl impl = createSocketImpl(); return new SdpSocket(impl); } /** * Creates an unbound SDP server socket. The {@code ServerSocket} is * associated with a {@link java.net.SocketImpl} of the system-default type. * * @return a new ServerSocket * * @throws UnsupportedOperationException * If SDP is not supported * @throws IOException * If an I/O error occurs */ public static ServerSocket openServerSocket() throws IOException { // create ServerSocket via package-private constructor SocketImpl impl = createSocketImpl(); try { return serverSocketCtor.newInstance(impl); } catch (IllegalAccessException x) { throw new AssertionError(x); } catch (InstantiationException x) { throw new AssertionError(x); } catch (InvocationTargetException x) { Throwable cause = x.getCause(); if (cause instanceof IOException) throw (IOException)cause; if (cause instanceof RuntimeException) throw (RuntimeException)cause; throw new RuntimeException(x); } } /** * Opens a socket channel to a SDP socket. * * <p> The channel will be associated with the system-wide default * {@link java.nio.channels.spi.SelectorProvider SelectorProvider}. * * @return a new SocketChannel * * @throws UnsupportedOperationException * If SDP is not supported or not supported by the default selector * provider * @throws IOException * If an I/O error occurs. */ public static SocketChannel openSocketChannel() throws IOException { FileDescriptor fd = SdpSupport.createSocket(); return sun.nio.ch.Secrets.newSocketChannel(fd); } /** * Opens a socket channel to a SDP socket. * * <p> The channel will be associated with the system-wide default * {@link java.nio.channels.spi.SelectorProvider SelectorProvider}. * * @return a new ServerSocketChannel * * @throws UnsupportedOperationException * If SDP is not supported or not supported by the default selector * provider * @throws IOException * If an I/O error occurs */ public static ServerSocketChannel openServerSocketChannel() throws IOException { FileDescriptor fd = SdpSupport.createSocket(); return sun.nio.ch.Secrets.newServerSocketChannel(fd); } }

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  • NHibernate.MappingException (no persister for) weirdness

    - by Berryl
    The weird part being that I have other tests that validate the mapping and even the method being called (Nhib session.SaveOrUpdate) that run just fine. The entire exception is below. Here is some debug output from a test that does work: Item type: Domain.Model.Projects.Project item: 007-00-056 ATM Machine Replacement Is transient: True Id: 0 NHibernate: INSERT INTO Projects (Code, Description) VALUES (@p0, @p1); select insert_rowid();@p0 = '007-00-056', @p1 = 'ATM Machine Replacement' Here is the same debug output before the exception: Item type: Smack.ConstructionAdmin.Domain.Model.Projects.Project item: 006-00-023 Refinish Casino Chairs Is transient: True Id: 0 The two tests are different in that the one that works is just testing the repository, and saving in memory test data. The failing one is saving data that has been converted from a legacy db (which has it's own session). The repository is also a replacement design for a different IProjectRepsitory that worked fine doing this, so the new repository is also a likely suspect here. Does anyone see what I'm missing or have some questions to narrow it down? Cheers, Berryl === the Exception trace ===== failed: NHibernate.MappingException : No persister for: Domain.Model.Projects.Project at NHibernate.Impl.SessionFactoryImpl.GetEntityPersister(String entityName) at NHibernate.Impl.SessionImpl.GetEntityPersister(String entityName, Object obj) at NHibernate.Event.Default.AbstractSaveEventListener.SaveWithGeneratedId(Object entity, String entityName, Object anything, IEventSource source, Boolean requiresImmediateIdAccess) at NHibernate.Event.Default.DefaultSaveOrUpdateEventListener.SaveWithGeneratedOrRequestedId(SaveOrUpdateEvent event) at NHibernate.Event.Default.DefaultSaveEventListener.SaveWithGeneratedOrRequestedId(SaveOrUpdateEvent event) at NHibernate.Event.Default.DefaultSaveOrUpdateEventListener.EntityIsTransient(SaveOrUpdateEvent event) at NHibernate.Event.Default.DefaultSaveEventListener.PerformSaveOrUpdate(SaveOrUpdateEvent event) at NHibernate.Event.Default.DefaultSaveOrUpdateEventListener.OnSaveOrUpdate(SaveOrUpdateEvent event) at NHibernate.Impl.SessionImpl.FireSave(SaveOrUpdateEvent event) at NHibernate.Impl.SessionImpl.Save(Object obj) NHibernate\Repository\NHibRepository.cs(40,0): at Core.Data.NHibernate.Repository.NHibRepository`1.Add(T item) Repositories\ProjectRepository.cs(30,0): at Data.Repositories.ProjectRepository.SaveAll(IEnumerable`1 projects) LegacyConversion\LegacyBatchUpdater.cs(20,0): at Data.LegacyConversion.LegacyBatchUpdater.ConvertOpenLegacyProjects(ILegacyProjectDao legacyProjectDao, IProjectRepository greenProjectRepository) Data\Brownfield\ProjectBatchUpdate_SQLiteTests.cs(31,0): at .Tests.Data.Brownfield.ProjectBatchUpdate_SQLiteTests.Test()

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  • SSRS 2008: is it possible to make a report parameter NOT query-based for some linked report?

    - by Stefan Mohr
    I suspect the answer is no, but here goes.. I'm using the WebForms Report Viewer on a public-facing website to allow users to report on themselves or their users (if the user is an admin user). A report has a parameter called Users where an admin can pick a user from the list and generate a report from it. Mundane users can also view this report, but I programmatically create a linked report for each user and set the UserID value to their ID so they can only view themselves. This works well except that the UserID parameter is query-based, and not every user is visible in the list using default settings (the user list is based off date range parameters can provide, and only users we consider 'active' during the date range are visible). This is blowing up for mundane users that are not active for the default date range (which is the previous month). I suspect the flow of execution is something like this: Report loads with default parameters The linked report rules are now applied and the value of the UserID is overridden with the ID in the linked report UserID field is now hidden to prevent the user from changing it SSRS can't find the UserID default value in the query results (that I didn't even want it to run) so it displays an error The 'UserID' parameter is missing a value Through some testing I've found a perfect correlation between users not inside the default date range and users who can't view the report. Can anyone suggest a way to make the report usable for those users that aren't in the default list? The reports are created programmatically so I do have a fair bit of control over the situation. I would love to simply be able to mark a parameter in a linked report as no longer being query-based, but those properties are all read-only. I really, really don't want to have to create duplicate reports to accommodate these users but I'm at a bit of a loss right now. Any suggestions are greatly appreciated!

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  • Improving ANTLR DSL parse-error messages

    - by Dan Fabulich
    I'm working on a domain-specific language (DSL) for non-programmers. Non-programmers make a lot of grammar mistakes: they misspell keywords, they don't close parentheses, they don't terminate blocks, etc. I'm using ANTLR to generate my parser; it provides a nifty mechanism for handling RecognitionExceptions to improve error handling. But I'm finding it pretty hard to develop good error-handling code for my DSL. At this point, I'm considering ways to simplify the language to make it easier for me to provide users with high-quality error messages, but I'm not really sure how to go about this. I think I want to reduce the ambiguity of errors somehow, but I'm not sure how to implement that idea in a grammar. In what ways can I simplify my language to improve parse-error messages for my users? EDIT: Updated to clarify that I'm interested in ways to simplify my language, not just ANTLR error-handling tips in general. (Though, thanks for those!)

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  • Zend Framework subdomain+subfolder router rewrite problem

    - by zf_novice
    I'm new to Zend Framwork and this is an issue I've been struggling for several hours already... I'm trying to chain Hostname and standard Route in order to get url with subdomain+subfolders ie.: http:// lang.mydomain.com/myapplication/public/controller http:// lang.mydomain.com/myapplication/public/controller/action (sorry for the empty space in the address, this site won't allow links) Basically what I have done in Bootstrap is: // add language to default route $routePath = new Zend_Controller_Router_Route( ':controller/:action/*', array('controller'=>'index','action' => 'index','module'=>'default') ); $routeHostname = new Zend_Controller_Router_Route_Hostname( ':lang.mydomain.com', array('lang'=>$lang) ); $frontController = $this->getResource('FrontController'); $router = $frontController->getRouter(); $router->addRoute('default', $routeHostname->chain($routePath)) $frontController->setRouter($router); it finds the route ok, but every time I generate url in view or layout by $this-url() <?php echo $this->url( array( 'controller'=> 'guestbook', 'action' => 'sign', 'lang' => Zend_Registry::get('lang'), ), 'default', true) ?>"> I get http:// lang.mydomain.com/controller instead of http:// lang.mydomain.com/myapplication/public/controller I've been trying to set baseUrl on front controller but no luck... Also I've tried the static route with myapplication/public or following standard route: 'myapplication/public/:controller/:action/*' - it result with "An error occurred Page not found Exception information: Message: No route matched the request" and empty request Is there any way to assembly subdomain with subfolder in Zend Framwork?? EDIT: I changed above to: $frontController->setBaseUrl('.'); // add language to default route $routePath = new Zend_Controller_Router_Route( 'quickstart/public/:controller/:action/*', array( 'controller'=>'index', 'action' => 'index', 'module'=>'default', ) ); and it works form me, although I'm not sure whether it's been correct approach...

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  • emacs indentation problem

    - by Gauthier
    I'm really trying to switch to emacs, but learning to setup the environment is a real pain. Everybody says it's worth it, so I just continue. I want my c code to be implemented that way: if(asdf) { asdr = 1; } Depending on the current standard (I know, don't get me started), could be: if(asdf) { asdr = 1; } I can't seem to change the indentation size from 2, it always looks like the GNU standard: if(asdf) { asdr = 1; } , which I dislike. Here is what I have put in my .emacs: ; Warn in C for while();, if(x=0), ... (global-cwarn-mode 1) ; no electric mode in c (c-toggle-electric-state -1) ; indent the current line only if the cursor is at the beginning of the line (setq-default c-tab-always-indent nil) (setq-default c-indent-level 4) (setq-default tab-width 4) (setq-default indent-tabs-mode nil) (setq-default c-basic-offset 4) (setq-default c-basic-indent 4) ; These commands I read about on the web, but they don't work? ;(highlight-tabs) ;(highlight-trailing_whitespace) This did not help, I have still the GNU indent. Anyone?

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  • How to use opencv header in visual studio windows app

    - by yooo
    I did my work in visual studio 2010 c++ console , but now i am trying to convert my work into windows app (making interface of it) in visual studio c++ . For that i have to add some header files which i have to add manually in windows form application, like and it show me some error's in it like DetectRegions.h(10): error C2146: syntax error : missing ';' before identifier 'filename' DetectRegions.h(10): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int DetectRegions.h(10): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int DetectRegions.h(11): error C2061: syntax error : identifier 'string' DetectRegions.h(14): error C2143: syntax error : missing ';' before '<' DetectRegions.h(14): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int DetectRegions.h(14): error C2238: unexpected token(s) preceding ';' DetectRegions.h(16): error C2143: syntax error : missing ';' before '<' DetectRegions.h(16): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int DetectRegions.h(16): error C2238: unexpected token(s) preceding ';' DetectRegions.h(17): error C2061: syntax error : identifier 'RotatedRect' DetectRegions.h(18): error C2653: 'cv' : is not a class or namespace name DetectRegions.h(18): error C2146: syntax error : missing ';' before identifier 'histeq' DetectRegions.h(18): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int DetectRegions.h(18): error C2061: syntax error : identifier 'Mat' DetectRegions.h(18): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int DetectRegions.h(18): warning C4183: 'histeq': missing return type; assumed to be a member function returning 'int' Plate.h is same like DetectRegions.h I add the other headers of opencv in Form1.h like #include "opencv2/features2d/features2d.hpp" #include <opencv/highgui.h> #include "opencv2/opencv.hpp" .......

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  • Modern Java alternatives

    - by Ralph
    I'm not sure if stackoverflow is the best forum for this discussion. I have been a Java developer for 14 years and have written an enterprise-level (~500,000 line) Swing application that uses most of the standard library APIs. Recently, I have become disappointed with the progress that the language has made to "modernize" itself, and am looking for an alternative for ongoing development. I have considered moving to the .NET platform, but I have issues with using something the only runs well in Windows (I know about Mono, but that is still far behind Microsoft). I also plan on buying a new Macbook Pro as soon as Apple releases their new rumored Arrandale-based machines and want to develop in an environment that will feel "at home" in Unix/Linux. I have considered using Python or Ruby, but the standard Java library is arguably the largest of any modern language. In JVM-based languages, I looked at Groovy, but am disappointed with its performance. Rumor has it that with the soon-to-be released JDK7, with its InvokeDynamic instruction, this will improve, but I don't know how much. Groovy is also not truly a functional language, although it provides closures and some of the "functional" features on collections. It does not embrace immutability. I have narrowed my search down to two JVM-based alternatives: Scala and Clojure. Each has its strengths and weaknesses. I am looking for the stackoverflow readerships' opinions. I am not an expert at either of these languages; I have read 2 1/2 books on Scala and am currently reading Stu Halloway's book on Clojure. Scala is strongly statically typed. I know the dynamic language folks claim that static typing is a crutch for not doing unit testing, but it does provide a mechanism for compile-time location of a whole class of errors. Scala is more concise than Java, but not as much as Clojure. Scala's inter-operation with Java seems to be better than Clojure's, in that most Java operations are easier to do in Scala than in Clojure. For example, I can find no way in Clojure to create a non-static initialization block in a class derived from a Java superclass. For example, I like the Apache commons CLI library for command line argument parsing. In Java and Scala, I can create a new Options object and add Option items to it in an initialization block as follows (Java code): final Options options = new Options() { { addOption(new Option("?", "help", false, "Show this usage information"); // other options } }; I can't figure out how to the same thing in Clojure (except by using (doit...)), although that may reflect my lack of knowledge of the language. Clojure's collections are optimized for immutability. They rarely require copy-on-write semantics. I don't know if Scala's immutable collections are implemented using similar algorithms, but Rich Hickey (Clojure's inventor) goes out of his way to explain how that language's data structures are efficient. Clojure was designed from the beginning for concurrency (as was Scala) and with modern multi-core processors, concurrency takes on more importance, but I occasionally need to write simple non-concurrent utilities, and Scala code probably runs a little faster for these applications since it discourages, but does not prohibit, "simple" mutability. One could argue that one-off utilities do not have to be super-fast, but sometimes they do tasks that take hours or days to complete. I know that there is no right answer to this "question", but I thought I would open it up for discussion. If anyone has a suggestion for another JVM-based language that can be used for enterprise level development, please list it. Also, it is not my intent to start a flame war. Thanks, Ralph

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  • SharePoint 2007 Force Culture and UI Culture

    - by jdcorr
    i'm developing a sharepoint portal, and i want to force a portal culture to 'pt-PT', i already installed the moss and wss language packs and i changed the web.config too with the following statment: but if i set the browser language to other language the controls change their culture (this only occurs in portal frontoffice, in backoffice the culture is always pt). What i have to do to fix this problem?

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  • Windows 7 Pro sysprep not working

    - by Callum D
    Hello, I'm trying to sysprep a Windows 7 Professional machine, prior to grabbing an image for mass deployment on identical hardware, and am having a hard time getting sysprep to work (at all). I've created an XML answer file with WSIM, and have a basic setupcomplete.cmd file, but none of the configurations in the answer file seem to be applied. I've read technet articles and googled, and I still have no idea why this is happening. Is someone able to have a look at the answer file I've attached and let me know where I'm going wrong? thanks, Callum AutoUnattend.XML <?xml version="1.0" encoding="utf-8"?> <unattend xmlns="urn:schemas-microsoft-com:unattend"> <settings pass="specialize"> <component name="Microsoft-Windows-Shell-Setup" processorArchitecture="x86" publicKeyToken="31bf3856ad364e35" language="neutral" versionScope="nonSxS" xmlns:wcm="http://schemas.microsoft.com/WMIConfig/2002/State" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"> <AutoLogon> <Password> <Value>**********************************</Value> <PlainText>false</PlainText> </Password> <Username>administrator</Username> <LogonCount>1</LogonCount> <Enabled>true</Enabled> </AutoLogon> <WindowsFeatures> <ShowMediaCenter>false</ShowMediaCenter> <ShowWindowsMediaPlayer>false</ShowWindowsMediaPlayer> </WindowsFeatures> <CopyProfile>true</CopyProfile> <DoNotCleanTaskBar>true</DoNotCleanTaskBar> <RegisteredOrganization>SomeCompany (UK) Ltd.</RegisteredOrganization> <RegisteredOwner>SomeCompany User</RegisteredOwner> <ShowWindowsLive>false</ShowWindowsLive> <TimeZone>GMT Standard Time</TimeZone> </component> <component name="Security-Malware-Windows-Defender" processorArchitecture="x86" publicKeyToken="31bf3856ad364e35" language="neutral" versionScope="nonSxS" xmlns:wcm="http://schemas.microsoft.com/WMIConfig/2002/State" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"> <DisableAntiSpyware>true</DisableAntiSpyware> </component> </settings> <settings pass="oobeSystem"> <component name="Microsoft-Windows-International-Core" processorArchitecture="x86" publicKeyToken="31bf3856ad364e35" language="neutral" versionScope="nonSxS" xmlns:wcm="http://schemas.microsoft.com/WMIConfig/2002/State" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"> <SystemLocale>en-UK</SystemLocale> <UserLocale>en-UK</UserLocale> <UILanguage>en-US</UILanguage> <InputLocale>0809:00000809</InputLocale> </component> <component name="Microsoft-Windows-Shell-Setup" processorArchitecture="x86" publicKeyToken="31bf3856ad364e35" language="neutral" versionScope="nonSxS" xmlns:wcm="http://schemas.microsoft.com/WMIConfig/2002/State" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"> <OOBE> <HideEULAPage>true</HideEULAPage> <HideWirelessSetupInOOBE>true</HideWirelessSetupInOOBE> <NetworkLocation>Work</NetworkLocation> <ProtectYourPC>1</ProtectYourPC> </OOBE> <UserAccounts> <AdministratorPassword> <Value>*************************************************=</Value> <PlainText>false</PlainText> </AdministratorPassword> </UserAccounts> </component> <component name="Microsoft-Windows-Deployment" processorArchitecture="x86" publicKeyToken="31bf3856ad364e35" language="neutral" versionScope="nonSxS" xmlns:wcm="http://schemas.microsoft.com/WMIConfig/2002/State" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"> <Reseal> <Mode>OOBE</Mode> </Reseal> </component> </settings> <settings pass="generalize"> <component name="Microsoft-Windows-Security-SPP" processorArchitecture="x86" publicKeyToken="31bf3856ad364e35" language="neutral" versionScope="nonSxS" xmlns:wcm="http://schemas.microsoft.com/WMIConfig/2002/State" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"> <SkipRearm>0</SkipRearm> </component> </settings> <settings pass="windowsPE"> <component name="Microsoft-Windows-Setup" processorArchitecture="x86" publicKeyToken="31bf3856ad364e35" language="neutral" versionScope="nonSxS" xmlns:wcm="http://schemas.microsoft.com/WMIConfig/2002/State" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"> <UseConfigurationSet>true</UseConfigurationSet> </component> </settings> <cpi:offlineImage cpi:source="wim:c:/wim/install.wim#Windows 7 PROFESSIONAL" xmlns:cpi="urn:schemas-microsoft-com:cpi" /> </unattend>

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  • Change CulturalInfo after button click

    - by Bart
    i have multilingual asp.net site. there is masterpage and default.aspx in masterpage i put two buttons one to click when i want to change the language to english, second for polish. I want to change the language after click on these buttons (and all changes should appear automatically on the page) here is a code for both: protected void EnglishButton_Click(object sender, ImageClickEventArgs e) { string selectedLanguage = "en-US"; //Sets the cookie that is to be used by InitializeCulture() in content page HttpCookie cookie = new HttpCookie("CultureInfo"); cookie.Value = selectedLanguage; Response.Cookies.Add(cookie); Server.Transfer(Request.Path); } protected void PolishButton_Click(object sender, ImageClickEventArgs e) { string selectedLanguage = "pl-PL"; //Sets the cookie that is to be used by InitializeCulture() in content page HttpCookie cookie = new HttpCookie("CultureInfo"); cookie.Value = selectedLanguage; Response.Cookies.Add(cookie); Server.Transfer(Request.Path); } in default.aspx.cs i have InitializeCulture(): protected override void InitializeCulture() { HttpCookie cookie = Request.Cookies["CultureInfo"]; // if there is some value in cookie if (cookie != null && cookie.Value != null) { Thread.CurrentThread.CurrentCulture = CultureInfo.CreateSpecificCulture(cookie.Value); Thread.CurrentThread.CurrentUICulture = new CultureInfo(cookie.Value); } else // if none value has been sent by cookie, set default language { Thread.CurrentThread.CurrentCulture = CultureInfo.CreateSpecificCulture("pl-PL"); Thread.CurrentThread.CurrentUICulture = new CultureInfo("pl-PL"); } base.InitializeCulture(); } i added resource files and in one label i show actual culture: Welcome.Text = "Culture: " + System.Globalization.CultureInfo.CurrentCulture.ToString(); the problem is that when i run this app and click e.g. english button (default language is polish), there is no effect. if i click it second time or press F5, the changes are applies and in the label is Culture: en-US. the same happens if i want to change language back to polish (it works after second click (or one click and refresh)). What am i doing wrong?

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  • [ASP.NET] Change CulturalInfo after button click

    - by Bart
    Hello, i have multilingual asp.net site. there is masterpage and default.aspx in masterpage i put two buttons one to click when i want to change the language to english, second for polish. I want to change the language after click on these buttons (and all changes should appear automatically on the page) here is a code for both: protected void EnglishButton_Click(object sender, ImageClickEventArgs e) { string selectedLanguage = "en-US"; //Sets the cookie that is to be used by InitializeCulture() in content page HttpCookie cookie = new HttpCookie("CultureInfo"); cookie.Value = selectedLanguage; Response.Cookies.Add(cookie); Server.Transfer(Request.Path); } protected void PolishButton_Click(object sender, ImageClickEventArgs e) { string selectedLanguage = "pl-PL"; //Sets the cookie that is to be used by InitializeCulture() in content page HttpCookie cookie = new HttpCookie("CultureInfo"); cookie.Value = selectedLanguage; Response.Cookies.Add(cookie); Server.Transfer(Request.Path); } in default.aspx.cs i have InitializeCulture(): protected override void InitializeCulture() { HttpCookie cookie = Request.Cookies["CultureInfo"]; // if there is some value in cookie if (cookie != null && cookie.Value != null) { Thread.CurrentThread.CurrentCulture = CultureInfo.CreateSpecificCulture(cookie.Value); Thread.CurrentThread.CurrentUICulture = new CultureInfo(cookie.Value); } else // if none value has been sent by cookie, set default language { Thread.CurrentThread.CurrentCulture = CultureInfo.CreateSpecificCulture("pl-PL"); Thread.CurrentThread.CurrentUICulture = new CultureInfo("pl-PL"); } base.InitializeCulture(); } i added resource files and in one label i show actual culture: Welcome.Text = "Culture: " + System.Globalization.CultureInfo.CurrentCulture.ToString(); the problem is that when i run this app and click e.g. english button (default language is polish), there is no effect. if i click it second time or press F5, the changes are applies and in the label is Culture: en-US. the same happens if i want to change language back to polish (it works after second click (or one click and refresh)). What am i doing wrong? Regards, Bart

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  • Newbie python error in regards to import

    - by TylerW
    Hello. I'm a python newbie and starting out with using the Bottle web framework on Google App Engine. I've been messing with the super small, super easy Hello World sample and have already ran into problems. Heh. I finally got the code to work with this... import bottle from bottle import route from google.appengine.ext.webapp import util @route('/hello') def hello(): return "Hello World!" util.run_wsgi_app(bottle.default_app()) My question is, I thought I could just go 'import bottle' without the second line. But if I take the second line out, I get a NameError. Or if I do 'from bottle import *', I still get the error. bottle is just a single file called 'bottle.py' in my site's root directory. So neither of these work.... import bottle from google.appengine.ext.webapp import util @route('/hello') def hello(): return "Hello World!" util.run_wsgi_app(bottle.default_app()) Or from bottle import * from google.appengine.ext.webapp import util @route('/hello') def hello(): return "Hello World!" util.run_wsgi_app(bottle.default_app()) The error message I get is... Traceback (most recent call last): File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/google/appengine/tools/dev_appserver.py", line 3180, in _HandleRequest self._Dispatch(dispatcher, self.rfile, outfile, env_dict) File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/google/appengine/tools/dev_appserver.py", line 3123, in _Dispatch base_env_dict=env_dict) File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/google/appengine/tools/dev_appserver.py", line 515, in Dispatch base_env_dict=base_env_dict) File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/google/appengine/tools/dev_appserver.py", line 2382, in Dispatch self._module_dict) File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/google/appengine/tools/dev_appserver.py", line 2292, in ExecuteCGI reset_modules = exec_script(handler_path, cgi_path, hook) File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/google/appengine/tools/dev_appserver.py", line 2188, in ExecuteOrImportScript exec module_code in script_module.dict File "/Users/tyler/Dropbox/sites/dietgrid/code2.py", line 4, in @route('/hello') NameError: name 'route' is not defined So am I wrong in thinking it should be able to work the other ways or no?

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  • mySQL need to merge fields and get unique rows

    - by jiudev
    i have a database with +1 million rows and the stuktur looks like: CREATE TABLE IF NOT EXISTS `Performance` ( `id` int(11) NOT NULL AUTO_INCREMENT, `CIDs` varchar(100) DEFAULT NULL, `COLOR` varchar(100) DEFAULT NULL, `Name` varchar(255) DEFAULT NULL, `XT` bigint(16) DEFAULT NULL, `MP` varchar(100) DEFAULT NULL, PRIMARY KEY (`id`), KEY `CIDs` (`CIDs`), KEY `COLOR` (`COLOR`), KEY `Name` (`Name`), KEY `XT` (`XT`) ) ENGINE=MyISAM DEFAULT CHARSET=utf8 AUTO_INCREMENT=0 ; insert into `Performance` (`id`, `CIDs`, `COLOR`, `Name`, `XT`, `MP`) VALUES (1, '1253374160', 'test test test test test', 'Load1', '89421331221', ''), (2, '1271672029', NULL, 'Load1', '19421331221', NULL), (3, '1188959688', NULL, 'Load2', '39421331221', NULL), (4, '1271672029', NULL, 'Load3', '49421341221', 'Description'), (5, '1271888888', NULL, 'Load4', '59421331221', 'Description'); The Output should look like: +----+------------+--------------------------+-------------+-------------+-------+-----------+---------+ | id | CIDs | COLOR | XT | MP | Name | PIDs | unqName | +----+------------+--------------------------+-------------+-------------+-------+-----------+---------+ | 1 | 1253374160 | test test test test test | 89421331221 | | Load1 | 1,2 | Load1 | | 3 | 1188959688 | NULL | 39421331221 | NULL | Load2 | 3 | Load2 | | 4 | 1271672029 | NULL | 49421341221 | Description | Load3 | 4,5 | Load3 | +----+------------+--------------------------+-------------+-------------+-------+-----------+---------+ any ideas, how i could do this as fast as possible? I have tried with some group by, but it takes some Minutes :/ Thanks Advance //edit: for the solution with the group by, i needed 4 subquerys :/ //edit2: as requested: select id, CIDs, COLOR, XT, MP, Name, concat(PIDs,",",GROUP_CONCAT(DISTINCT id)) as PIDs, IFNULL(Name,id) as unqName from ( select id, CIDs, COLOR, XT, MP, Name, concat(PIDs,",",GROUP_CONCAT(DISTINCT id)) as PIDs, IFNULL(MP,id) as unqMP from ( select id, CIDs, COLOR, XT, MP, Name, concat(PIDs,",",GROUP_CONCAT(DISTINCT id)) as PIDs, IFNULL(XT,id) as unqXT from ( select id, CIDs, COLOR, XT, MP, Name, GROUP_CONCAT(DISTINCT id) as PIDs, IFNULL(COLOR,id) as unqCOLOR from Performance group by unqCOLOR ) m group by unqXT ) x group by unqMP ) y group by unqName

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  • JSON encoding on RTL languages

    - by Lev
    Hi, I'm using JSON to integrate open flash chart to my web page. When I have a Right to Left language string which contains more the one word the JSON encodes it backwards (For example: "Hello world" is encoded as "world hello"). The string is extracted from a database, there for can be of any language. How do I force the correct encoding of Right to Left language without ruining other languages? Thanks

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  • Including variables inside curly braces in a Zend config ini file on Linux

    - by Dave Morris
    I am trying to include a variable in a .ini file setting by surrounding it with curly braces, and Zend is complaining that it cannot parse it properly on Linux. It works properly on Windows, though: welcome_message = Welcome, {0}. This is the error that is being thrown on Linux: : Uncaught exception 'Zend_Config_Exception' with message 'Error parsing /var/www/html/portal/application/configs/language/messages.ini on line 10 ' in /usr/local/zend/share/ZendFramework/library/Zend/Config/Ini.php:181 Stack trace: 0 /usr/local/zend/share/ZendFramework/library/Zend/Config/Ini.php(201): Zend_Config_Ini-&gt;_parseIniFile('/var/www/html/p...') 1 /usr/local/zend/share/ZendFramework/library/Zend/Config/Ini.php(125): Zend_Config_Ini-&gt;_loadIniFile('/var/www/html/p...') 2 /var/www/html/portal/library/Ingrain/Language/Base.php(49): Zend_Config_Ini-&gt;__construct('/var/www/html/p...', NULL) 3 /var/www/html/portal/library/Ingrain/Language/Base.php(23): Ingrain_Language_Base-&gt;setConfig('messages.ini', NULL, NULL) 4 /var/www/html/portal/library/Ingrain/Language/Messages.php(7): Ingrain_Language_Base-&gt;__construct('messages.ini', NULL, NULL, NULL) 5 /var/www/html/portal/library/Ingrain/Helper/Language.php(38): Ingrain_Language_Messages-&gt;__construct() 6 /usr/local/zend/share/ZendFramework/library/Zend/Contr in We are able to get the error to go away on Linux if we surround the braces with quotes, but that seems like a strange solution: welcome_message = Welcome, "{"0"}". Is there a better way to solve this issue for all platforms? Thanks for your help, Dave

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  • emacs: force ido-mode to forget history...

    - by Stephen
    Hi, I wonder if I can keep ido from not remembering my history and only show completions for files that are in the current directory when I am searching for a file. I understand that this history feature is useful at times, but I often end up editing the incorrect file because I think I am editing file called 'abc.txt' in the current directory but in fact I am editing the file by the same name in another one that I previously visited (often happens when there is not an 'abc.txt' in the current directory, as I mistakenly assume). From reading the ido.el file I thought to set in my .emacs file (also evaluated these expressions in running emacs instance): (custom-set-variables '(ido-enable-last-directory-history nil) '(ido-record-commands nil) ) and deleted a file called .ido.last in ~/, but still it remembers some previous files I've visited before making these changes. How can I purge my previous history, and I am not entirely sure what the difference between the two variables above are but seems to have done the trick to keep ido from remembering files I visit in the future? Thanks for your help!

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