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• Windows XP restarting repeatedly after a fresh restore

  - by DWilliams

  I don't normally deal with Windows but someone wanted me to fix their computer with Windows XP on it. It was just restarting every time it tried to boot. It would not go into safe mode, the result was the same regardless of the selected mode. The computer is like 4 years old and has been running the same installation for that entire time, so I figured the easiest solution was just to back up their files and re-install. I loaded the computer up with a live CD and copied their files off to a USB drive, then proceeded to run HP's "factory restore" feature (which I'm not particularly fond of, I'd rather have a disk to install from than reload all the crapware HP gets paid to install for you). It restored, and I put all their files back, installed their programs, and started the full windows update process. Everything seemed great so I left and told them what to do once it finished. A few hours pass, and my phone rings. Apparently it started doing the exact same thing as before once the updates finished. I don't have the computer sitting in front of me now so I can't really provide any more information than that. What could be causing this and, more importantly, how do I fix it? The fact that the same problem resurfaced after the restore makes me think it's either a hardware problem or an update breaking the computer.

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• Can the Diamond Problem be really solved?

  - by Mecki

  A typical problem in OO programming is the diamond problem. I have parent class A with two sub-classes B and C. A has an abstract method, B and C implement it. Now I have a sub-class D, that inherits of B and C. The diamond problem is now, what implementation shall D use, the one of B or the one of C? People claim Java knows no diamond problem. I can only have multiple inheritance with interfaces and since they have no implementation, I have no diamond problem. Is this really true? I don't think so. See below: [removed vehicle example] Is a diamond problem always the cause of bad class design and something neither programmer nor compiler needs to solve, because it shouldn't exist in the first place? Update: Maybe my example was poorly chosen. See this image Of course you can make Person virtual in C++ and thus you will only have one instance of person in memory, but the real problem persists IMHO. How would you implement getDepartment() for GradTeachingFellow? Consider, he might be student in one department and teach in another one. So you can either return one department or the other one; there is no perfect solution to the problem and the fact that no implementation might be inherited (e.g. Student and Teacher could both be interfaces) doesn't seem to solve the problem to me.

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• Users in database server or database tables

  - by Batcat

  Hi all, I came across an interesting issue about client server application design. We have this browser based management application where it has many users using the system. So obvisously within that application we have an user management module within it. I have always thought having an user table in the database to keep all the login details was good enough. However, a senior developer said user management should be done in the database server layer if not then is poorly designed. What he meant was, if a user wants to use the application then a user should be created in the user table AND in the database server as a user account as well. So if I have 50 users using my applications, then I should have 50 database server user logins. I personally think having just one user account in the database server for this database was enough. Just grant this user with the allowed privileges to operate all the necessary operation need by the application. The users that are interacting with the application should have their user accounts created and managed within the database table as they are more related to the application layer. I don't see and agree there is need to create a database server user account for every user created for the application in the user table. A single database server user should be enough to handle all the query sent by the application. Really hope to hear some suggestions / opinions and whether I'm missing something? performance or security issues? Thank you very much.

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• What would be the equivalent VB.NET code for this C# FluentNHibernate component mapping?

  - by Will Marcouiller

  I'm a C# programmer constrained to write VB.NET code. While exploring NHibernate further for my current client, I encountered FluentNHibernate, which I find real attractive. But now, I wonder how to "translate" this C# code for component mapping into VB.NET code: Component(x => x.Address, m => { m.Map(x => x.Number); m.Map(x => x.Street); m.Map(x => x.PostCode); }); I know from here: Component(Of Client)(Function(c) c.Address, ...) what I miss is how to continue with the brackets in VB.NET, since there's no Begin End keywords or so. EDIT 1: Following Mr. JaredPar instructions, I figured that his solution might work. If we take the time to read his answer, we may notice that we both don't know what the MType is within his solution. I might have found out that the MType is: FluentNHibernate.Mapping.ComponentPart(Of TComponent) Thus, TComponent is, from my understanding, an anonymous type that I shall parameter to use. From this point of view, since I wish to map the properties of my Address object, replacing TComponent in my help method signature seems not to work. Private Sub MapAdresseHelper(Of Adresse)(ByVal a As FluentNHibernate.Mapping.ComponentPart(Of Adresse)) a.Map(Function(m) m.Number) a.Map(Function(m) m.Street).Length(50) a.Map(Function(m) m.PostCode).Length(10) End Sub The error I get is that my Address class doesn't have a property member named Street, for instance. It sees my Address type, it recognizes it, but it seems buggy somehow. I guess VBNET is poorly designed for lambda expressions and is less evolved than C# (Sorry, a bit of frustration due to the constraint of working with it and not being capable of doing things VERY easily done in C#.) Thanks!

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• Approximate string matching with a letter confusion matrix?

  - by zigglenaut

  I'm trying to model a phonetic recognizer that has to isolate instances of words (strings of phones) out of a long stream of phones that doesn't have gaps between each word. The stream of phones may have been poorly recognized, with letter substitutions/insertions/deletions, so I will have to do approximate string matching. However, I want the matching to be phonetically-motivated, e.g. "m" and "n" are phonetically similar, so the substitution cost of "m" for "n" should be small, compared to say, "m" and "k". So, if I'm searching for [mein] "main", it would match the letter sequence [meim] "maim" with, say, cost 0.1, whereas it would match the letter sequence [meik] "make" with, say, cost 0.7. Similarly, there are differing costs for inserting or deleting each letter. I can supply a confusion matrix that, for each letter pair (x,y), gives the cost of substituting x with y, where x and y are any letter or the empty string. I know that there are tools available that do approximate matching such as agrep, but as far as I can tell, they do not take a confusion matrix as input. That is, the cost of any insertion/substitution/deletion = 1. My question is, are there any open-source tools already available that can do approximate matching with confusion matrices, and if not, what is a good algorithm that I can implement to accomplish this?

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• What's the lowest cost, legal, Microsoft server stack you can assemble?

  - by McKAMEY

  Assuming that you have an app infrastructure that generally only requires: ASP.NET MVC / C# / .NET Database or NoSQL data store (must be accessible from C#) Here's the challenge to you server gods: What is the least expensive configuration that will allow you to deploy to production in a way that doesn't break any licensing rules? In what ways does this solution differ from the "standard" Microsoft deployment scenario? Where does this solution's performance break down once the app begins to scale? I'm not concerned about the hardware, only the server software itself. I would love to hear about any solutions you've personally put into production. Especially if they are unique alternatives. For ideas, consider some of the possible variations, a) any Microsoft server solutions where they have lowered the barrier to entry to compete with OSS, or b) any OSS alternatives to Microsoft products which perform at a similar level. An example of a): SQL Server 2008 Express Edition SP1 is a 100% free version of SQL Server which will scale to the needs of many smaller / early stage applications. An example of b): running the Mono Framework on Linux. An example of differing from the "standard" stack: running Mono on Linux will require a completely different server OS familiarity. None of the Windows-based knowledge really transfers. An example of breaking down under scale: SQL Server Express will only scale to 1GB of memory and 4GB of disk storage. After that point, the application will need to move to one of the paid versions of SQL Server.

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• Install PHP mcrypt on Red Hat 4

  - by Chris

  I'm having a very hard time getting mcrypt for PHP installed on a Red Hat 4 server. I've downloaded the rpm but it tells me: error: Failed dependencies: php-common(x86-32) = 5.4.7-2.fc18 is needed by php-mcrypt-5.4.7-2.fc18.i686 rpmlib(FileDigests) <= 4.6.0-1 is needed by php-mcrypt-5.4.7-2.fc18.i686 libc.so.6(GLIBC_2.4) is needed by php-mcrypt-5.4.7-2.fc18.i686 libltdl.so.7 is needed by php-mcrypt-5.4.7-2.fc18.i686 rtld(GNU_HASH) is needed by php-mcrypt-5.4.7-2.fc18.i686 rpmlib(PayloadIsXz) <= 5.2-1 is needed by php-mcrypt-5.4.7-2.fc18.i686 So when I try to install one of those packages, they also require another 8 packages. So I'm diving into dependency hell here. Now if I try to compile mcrypt from source, this is what I get: checking for libmcrypt - version >= 2.5.0... no *** Could not run libmcrypt test program, checking why... *** The test program failed to compile or link. See the file config.log for the *** exact error that occured. This usually means LIBMCRYPT was incorrectly installed *** or that you have moved LIBMCRYPT since it was installed. In the latter case, you *** may want to edit the libmcrypt-config script: no configure: error: *** libmcrypt was not found But I was able to install libmcrypt from an rpm packages successfully. Any suggestions? Also, I cannot use up2date as it requires an active paid account from Red Hat and since the staff has changed rather rapidly in the last year where I work, no one knows if there even was any support accounts.

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• Is there any way to retire a AT&T Yahoo Email Account

  - by KindaSortaAsking

  Here are the facts as I (pretty sure) know them. Yahoo handles AT&T's DSL email accounts. I've called AT&T tech support and customer service and they say they can't help, but there has GOT to be a way to do this. It's too simple of a thing not to be able to do. I got behind on my dsl bill and my account got suspended. When I paid my bill, they said my account had been deactivated and I had to get a new account. When I tried to register my account with my old email address it would not let me, saying it was in use. I used a new email. The old email address is tied to a dsl account that can NEVER be reactivated. There has got to be a way to retire the old email address so that I can re-create it as a subaccount on my new dsl account. I'm not interested in anything that was in the old account (emails, addresses, etc) - I just want the address back.

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• URL sniffer/downloader

  - by Ricket

  Some websites have Flash content that plays music or videos. Most of the time they don't show you the URL of these music or videos, but for example, you can sniff a YouTube webpage and find the flv file that YouTube is actually requesting and playing. Right now I'm using Orbit Downloader, which has a feature called Grab++ that does just this; you start it, and then you refresh the page, and it shows you all files of certain types (image, audio, video) that the webpage requests, and then you can select one or more and download and it downloads them. But, I don't like Orbit, it installs plugins and has the whole download manager thing which I don't really want. What is a good alternative program? I'm not looking for websites like kickyoutube.com, I want a URL sniffer I guess. HTTPGuideDog used to be my Firefox add-on that did exactly this, but it hasn't been updated even to FF3 (and yes I know I can hack it to load anyway, I'm looking for something natively available preferably). I vaguely know of WireShark but last time I used it, I believe it captures individual packets, which is a little too fine-tuned for me. I just want to be able to see what's happening, and download something that the webpage downloaded. Oh, and I'm using Windows 7. Linux probably has some fancy command-line tool, but it just won't cut it for me. :-\ Edit: Oh, and something free please. Feel free to mention paid solutions though.

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• Missing libcurl.so.3 on updating tp PHP 5.2.13

  - by exentric

  Hi, I am trying to update my PHP to 5.2.13 however when I tried running yum update, it gives me this dependency error. php-5.2.13-jason.1.i386 from utterramblings has depsolving problems --> Missing Dependency: libcurl.so.3 is needed by package php-5.2.13-jason.1.i386 (utterramblings) Error: Missing Dependency: libcurl.so.3 is needed by package php-cli-5.2.13-jason.1.i386 (utterramblings) Error: Missing Dependency: libcurl.so.3 is needed by package php-5.2.13-jason.1.i386 (utterramblings) I believe this problem has been caused by my updating libcurl some time ago (to version 7.16.4-8.el5) but I have no idea how to solve this dependency issue. Some time ago my friend asked me regarding missing libcurl.so.3 as well on running some script. Can't say I remember what but he did say he managed to solved it (at least on his end) so I paid no attention to the libcurl.so.3 issue anymore. But now when I try to update my PHP, this problem arises again. This however does indeed exist (and presumably what solved my friend's issue): /usr/lib/libcurl.so.3 Any thoughts on this matter? I'm using centOS 5.3, PHP 5.2.11 and on LightTPD. -Regards

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• Proper High-End Video Editing Software for Windows?

  - by Michael Stum

  I'm wondering if anyone here has experience with Prosumer/High-End Video Editing? So far I use Adobe Premiere CS4, but it is an unstable and buggy mess sadly. This could be partially caused by the fact that my input material isn't always pure HDV/AVCHD but sometimes it can be DivX or some already pre-processed video. The one thing I liked about Adobe is though that with After Effects and Encore, they have a good overall toolset, but if it's sub-par then it's no good. Luckily it is already paid for and was worth it's money overall, so It's not a complete waste of money. But are there alternatives? Especially After Effects is quite unique, and the closest thing I found is Apple's Final Cut Studio which includes Motion and DVD Studio. The two downsides is that it requires a Mac and that it doesn't support BluRay though. Any hints for Windows? Sony Vegas might be something I'll look at, but I'm guessing I have to keep using After Effects for some serious compositing/VFX?

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• internet-based sync software that will keep running after Windows Live Sync stops doing PC-to-PC-syncs?

  - by Warren P

  According to the wikipedia page, Microsoft Live Sync will shortly stop offering the PC-to-PC sync service. There are lots of apps to sync two PCs on the same LAN, but I want to sync two PCs that are in different cities, across the internet, traversing two different NATs, and that requires some kind of service running in the internet that both connect into. There is already a few questions about syncing folders and files, but this is not a duplicate because none of them answer this basic question: Microsoft Live Sync works better than RSYNC, or any of the linked SYNC solutions in any of the "not really duplicates" because it works even when the two PCs have NAT and firewalls between them that forbid direct connectivity, because Windows Live Sync has a free always-on internet server that all the client PCs connect into. I'm looking for a FREE (no-fees) Microsoft Live Sync work-alike PC-to-PC sync solution that works between PCs and Macs, at least, as well as between PCs, and works behind NAT and firewalls at least as well as Microsoft's solution. (Note that Microsoft's solution makes only outbound socket calls to a microsoft server, so this solution must necessarily include a server-hub component that is hosted publically on a free site and which does not require that I set up and manage and pay for my own public internet hosting site) Hint: None of the answers in the linked duplicate are equivalent (PureSync,FreeFileSync,BestSync 2010,SyncButler,Comodo BackUp,QuickShadow,Gbridge) in that none of them work for the PC to Mac situation, where firewalls and nats prevent direct connection, or else they require money to be paid. When Microsoft Live Sync / Live Mesh finally kills direct PC-to-PC mode, the limitation will be that you will have to pay for more than 25 GB of cloud service, and you can then only sync PC #1 to PC #2 if you first sync to the cloud, then down to other clients. I can currently sync 100 gb of data from one computer to another, only temporarily "moving the data" through Microsoft's data servers without using up my Skydrive storage quota.

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• What is the best VM for developing WPF apps from within OS X?

  - by MarqueIV

  All of my machines are Macs (Mac Pro, MacBook Pro, MacBook Air and Mac Mini (and Apple TV 2.0 too! :) ) but for my day-job, I develop .NET/WPF applications. Normally I just boot into Boot Camp and develop that way, which of course works great, but there are times when I need to simultaneously get to things on my Mac-side of the equation, so I've bought both VMware 3.1 and Parallels 6. Both work, however, even on my Mac Pro where I paid to upgrade to the better video cards (the NVidia 8600s I think vs. the stock ATI cards) the WPF performance bites!! Now this confuses me since both boast that they support not only hardware-accelerated OpenGL 2.1, but also hardware-accelerated DirectX 9 (VMware even allegedly supports DirectX 10!) via their respective virtual drivers and both can run 3D games just fine, even in a window. But even the simple act of resizing a WPF window that has a tiled background results in some HIDEOUS repainting and resizing behaviors. It's damn near closer to what you'd expect over RDP let alone a software-only renderer (forget accelerated hardware completely!) So... can anyone please tell me WTF WPF is doing differently? More importantly, how can I speed up the WPF performance? Should I switch to VirtualBox that also has support for DirectX? Or am I just gonna have to 'byte' the bullet (sorry... had to. So I like puns! Thank Jon Stewart!) and continue using Boot Camp?

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• LINQ query code for complex merging of data.

  - by Stacey

  I've posted this before, but I worded it poorly. I'm trying again with a more well thought out structure. Re-writing this a bit to make it more clear. I have the following code and I am trying to figure out the shorter linq expression to do it 'inline'. Please examine the "Run()" method near the bottom. I am attempting to understand how to join two dictionaries together based on a matching identifier in one of the objects - so that I can use the query in this sort of syntax. var selected = from a in items.List() // etc. etc. select a; This is my class structure. The Run() method is what I am trying to simplify. I basically need to do this conversion inline in a couple of places, and I wanted to simplify it a great deal so that I can define it more 'cleanly'. class TModel { public Guid Id { get; set; } } class TModels : List<TModel> { } class TValue { } class TStorage { public Dictionary<Guid, TValue> Items { get; set; } } class TArranged { public Dictionary<TModel, TValue> Items { get; set; } } static class Repository { static public TItem Single<TItem, TCollection>(Predicate<TItem> expression) { return default(TItem); // access logic. } } class Sample { public void Run() { TStorage tStorage = new TStorage(); // access tStorage logic here. Dictionary<TModel, TValue> d = new Dictionary<TModel, TValue>(); foreach (KeyValuePair<Guid, TValue> kv in tStorage.Items) { d.Add(Repository.Single<TModel, TModels>(m => m.Id == kv.Key),kv.Value); } } }

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• Poor execution plans when using a filter and CONTAINSTABLE in a query

  - by Paul McLoughlin

  We have an interesting problem that I was hoping someone could help to shed some light on. At a high level the problem is as below: The following query executes quickly (1 second): SELECT SA.* FROM cg.SEARCHSERVER_ACTYS AS SA JOIN CONTAINSTABLE(CG.SEARCHSERVER_ACTYS, NOTE, 'reports') AS T1 ON T1.[Key]=SA.UNIQUE_ID but if we add a filter to the query, then it takes approximately 2 minutes to return: SELECT SA.* FROM cg.SEARCHSERVER_ACTYS AS SA JOIN CONTAINSTABLE(CG.SEARCHSERVER_ACTYS, NOTE, 'reports') AS T1 ON T1.[Key]=SA.UNIQUE_ID WHERE SA.CHG_DATE'19 Feb 2010' Looking at the execution plan for the two queries, I can see that in the second case there are two places where there are huge differences between the actual and estimated number of rows, these being: 1) For the FulltextMatch table valued function where the estimate is approx 22,000 rows and the actual is 29 million rows (which are then filtered down to 1670 rows before the join) and 2) For the index seek on the full text index, where the estimate is 1 row and the actual is 13,000 rows As a result of the estimates, the optimiser is choosing to use a nested loops join (since it assumes a small number of rows) hence the plan is inefficient. We can work around the problem by either (a) parameterising the query and adding an OPTION (OPTIMIZE FOR UNKNOWN) to the query or (b) by forcing a HASH JOIN to be used. In both of these cases the query returns in sub 1 second and the estimates appear reasonable. My question really is 'why are the estimates being used in the poorly performing case so wildly inaccurate and what can be done to improve them'? Statistics are up to date on the indexes on the indexed view being used here. Any help greatly appreciated.

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• Adobe e-book reader ("Digital Editions") not downloading on Mac OS X

  - by doug

  i recently bought a couple of books from ebooks.com, which i thought would be ordinary pdf files. After paying for them, and downloading them, you learn that while they are pdf files, they come with a lot of DRM baggage. The most conspicuous is that you can only view these files using an Adobe ebook reader called Adobe Digital Editions. (Note: this is not the ordinary Adobe Acrobat Reader, or anything close--it's a dedicated app for reading DRM-laden files. Fine--i'll know better next time. Still, i paid for these books and there's only one way i can actually read them, which happens to be an App that i seem to be unable to download. Here's the error message i get: "Couldn't write the application to the hard disk. Please verify the hard disk is available and try again" I've tried on several different browsers. My rig is a MBP, OS X 10.6.2. I've also checked the Adobe boards and this doesn't appear to be a known issue, nor could i find anything on their discussion forums. And just to be sure, i've checked my hard disk--no problems, plenty of space, and i have no problem, nor have i ever downloading other apps.

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• running .net application over a network

  - by Marlon

  Hello, I need some advice please. I need to enable a .Net application to run over a network share, the problem is that this will be on clients network shares and so the path will not be identical. I've had a quick look at ClickOnce and the publish options in VS2008 but it wants a specific network share location - and I'm assuming this location gets stored somewhere when it does its thing. At the moment the job is being done with a old VB6 application and so gets around all these security issues, but that application is poorly written and almost impossible to maintain so it really needs to go. Is it possible for the domain controller to be set up to allow this specific .Net application to execute? Any other options would be welcomed as I want to get this little application is very business critical. I aught to say that the client networks are schools, and thus are often quite locked down as are the client machines, so manually adding exceptions to each client machine is a big no no. Marlon --Edit-- Apologies, I forgot to mention we're restricted to .net 2.0 for the moment, we are planning to upgrade this to 4.0 but that won't be immediate.

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• Automated Oracle Schema Migration Tool

  - by Dave Jarvis

  What are some tools (commercial or OSS) that provide a GUI-based mechanism for creating schema upgrade scripts? To be clear, here are the tool responsibilities: Obtain connection to recent schema version (called "source"). Obtain connection to previous schema version (called "target"). Compare all schema objects between source and target. Create a script to make the target schema equivalent to the source schema ("upgrade script"). Create a rollback script to revert the source schema, used if the upgrade script fails (at any point). Create individual files for schema objects. The software must: Use ALTER TABLE instead of DROP and CREATE for renamed columns. Work with Oracle 10g or greater. Create scripts that can be batch executed (via command-line). Trivial installation process. (Bonus) Create scripts that can be executed with SQL*Plus. Here are some examples (from StackOverflow, ServerFault, and Google searches): Change Manager Oracle SQL Developer Software that does not meet the criteria, or cannot be evaluated, includes: TOAD PL/SQL Developer - Invalid SQL*Plus statements. Does not produce ALTER statements. SQL Fairy - No installer. Complex installation process. Poorly documented. DBDiff - Crippled data set evaluation, poor customer support. OrbitDB - Crippled data set evaluation. SchemaCrawler - No easily identifiable download version for Oracle databases. SQL Compare - SQL Server, not Oracle. LiquiBase - Requires changing the development process. No installer. Manually edit config files. Does not recognize its own baseUrl parameter. The only acceptable crippling of the evaluation version is by time. Crippling by restricting the number of tables and views hides possible bugs that are only visible in the software during the attempt to migrate hundreds of tables and views.

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• I receive email not addressed to me - virus?

  - by Anne

  Every once in a while I receive email (on Gmail) that isn't addressed to me. Gmail puts it in the spam box, because it 'can't verify that it has been sent by [sender]'. The emails, when opened, contain confidential information about deliveries and paid bills (it does look an awful lot like 'real' mail from well-known companies, and it doesn't look like a scam, since the mail is informative - they give information instead of asking for credit card numbers ;-)), and I even got an email from "Facebook" that I requested a password change and that I have to 'click here' to change the password for [email address that isn't mine]. I am not the only addressee, there seems to be a whole list of Gmail addresses beginning with 'a'. The original addressee obviously has some sort of virus, and now I wonder if this could be a risk for me too. Is my email being sent around without my knowing too? I am not the kind of person who randomly clicks on shady links - I am very careful on the internet - but maybe there are other ways of catching viruses? Is there something I should do/check? Thank you for your help!

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• UNIX-style RegExp Replace running extremely slowly under windows. Help? EDIT: Negative lookahead ass

  - by John Sullivan

  I'm trying to run a unix regEXP on every log file in a 1.12 GB directory, then replace the matched pattern with ''. Test run on a 4 meg file is took about 10 minutes, but worked. Obviously something is murdering performance by several orders of magnitude. Find: ^(?!.*155[0-2][0-9]{4}\s.*).*$ -- NOTE: match any line NOT starting 155[0-2]NNNN where in is a number 0-9. Replace with: ''. Is there some justifiable reason for my regExp to take this long to replace matching text, or is the program I am using (this is windows / a program called "grepWin") most likely poorly optimized? Thanks. UPDATE: I am noticing that searching for ^(155[0-2]).$ takes ~7 seconds in a 5.6 MB file with 77 matches. Adding the Negative Lookahead Assertion, ?=, so that the regExp becomes ^(?!155[0-2]).$ is causing it to take at least 5-10 minutes; granted, there will be thousands and thousands of matches. Should the negative lookahead assertion be extremely detrimental to performance, and/or a large quantity of matches?

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• C# - Naming a value combined "getter/setter" method (WebForms & Binding)

  - by tyndall

  Looking for some help on some names for a project I'm currently working on. I don't have a compsci degree so I don't know what to call this. I have a method called TryToGetSetValue(Direction direction, object value, object valueOnFail) Then there would be a Direction enum public enum Direction { ModelToForm, FormToModel } Background This is a legacy ASP.NET application. The models, database, and mainframe are designed poorly. I can't put in MVP or MVC patterns yet (too much work). ASP.NET code is a ridiculous mess (partial pages, single-page design, 5x the normal amount of jQuery, everything is a jQuery UI dialog). I'm just trying to put in a bridge so then I can do more refactoring over the next year. I have ~200 fields that need to be set on a GET and written back on a POST. I trying not to x2 these 200 fields and have 400 lines of code to support. What would you call my method? enum? Is there so other form of binding that would be easy to use instead? I'm not a fan of the DetailsView or FormView built-ins of ASP.NET WebForms.

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• are projects with high developer turn over rate really a bad thing?

  - by John

  I've inherited a lot of web projects that experienced high developer turn over rates. Sometimes these web projects are a horrible patchwork of band aid solutions. Other times they can be somewhat maintainable mozaics of half-done features each built with a different architectural style. Everytime I inherit these projects, I wish the previous developers could explain to me why things got so bad. What puzzles me is the reaction of the owners (either a manager, a middle man company, or a client). They seem to think, "Well, if you leave, I'll just find another developer." Or they think, "Oh, it costs that much money to refactor the system? I know another developer who can do it at half the price. I'll hire him if I can't afford you." I'm guessing that the high developer turn over rate is related to the owner's mentality of "If you think it's a bad idea to build this, I'll just find another (possibly cheaper) developer to do what I want". For the owners, the approach seems to work because their business is thriving. Unfortunately, it's no fun for the developers that go AWOL 3-4 months after working with poor code, strict timelines, and little feedback. So my question is the following: Are the following symptoms of a project really such a bad thing for business? high developer turn over rate poorly built technology - often a patchwork of different and inappropriately used architectural styles owners without a clear roadmap for their web project, and they request features on a whim I've seen numerous businesses prosper while experiencing the symptoms above. So as a programmer, even though my instincts tell me the above points are terrible, I'm forced to take a step back and ask, "are things really that bad in the grand scheme of things?" If not, I will re-evaluate my approach to these projects.

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• Blink build with Xcode failed

  - by Merci

  I found a GPL-ed SIP client for Mac, Blink. I'd like to build it from source since the binaries are only available as paid download. Just FYI i'm studying programming at university but have no experience in building complex application from source. After downloading the content of the repository i opened the Xcode project and tried to build on OS X 10.7, Xcode 4.2.1. Unfortunately the build fail with 1 error and many warnings Most of the warnings are like this: Attribute Unavailable: Custom Identifiers in Interface Builder versions prior to 3.2 The error message is: Apple Mach-O Linker (ld) Error Command /Developer/usr/bin/clang failed with exit code 1 preceded by the warning Apple Mach-O Linker (ld) Warning directory not found for option '-L/Users/Sergio/Downloads/Blink/devel.ag-projects.com/repositories/public/blink-cocoa/Distribution/Frameworks' I notice that in the list of required files i have this files missing: Dependencies/Frameworks libgcrypt.11.6.0.dylib libgcrypt.11.dylib libgnutls-extra.26.dylib libgnutls.26.dylib libgpg-error.0.dylib libintl.8.dylib liblzo.1.dylib libtasn1.3.dylib Dependencies/Resources lib Frameworks/Linked Frameworks Sparkle.framework Products Blink.app It should be possible to download these files somewhere. Unfortunately googling did not help. There's no documentation on the project site.

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• Handling selection and deselection of objects in a user interface

  - by Dennis

  I'm writing a small audio application (in Silverlight, but that's not really relevant I suppose), and I'm a struggling with a problem I've faced before and never solved properly. This time I want to get it right. In the application there is one Arrangement control, which contains several Track controls, and every Track can contain AudioObject controls (these are all custom user controls). The user needs to be able to select audio objects, and when these objects are selected they are rendered differently. I can make this happen by hooking into the MouseDown event of the AudioObject control and setting state accordingly. So far so good, but when an audio object is selected, all other audio objects need to be deselected (well, unless the user holds the shift key). Audio objects don't know about other audio objects though, so they have no way to tell the rest to deselect themselves. Now if I would approach this problem like I did the last time I would pass a reference to the Arrangement control in the constructor of the AudioObject control and give the Arrangement control a DeselectAll() method or something like that, which would tell all Track controls to deselect all their AudioObject controls. This feels wrong, and if I apply this strategy to similar issues I'm afraid I will soon end up with every object having a reference to every other object, creating one big tightly coupled mess. It feels like opening the floodgates for poorly designed code. Is there a better way to handle this?

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• jquery: Writing a method

  - by Mark

  This is the same question as this: http://stackoverflow.com/questions/2890620/jquery-running-a-function-in-a-context-and-adding-to-a-variable But that question was poorly posed. Trying again, I'm trying to do something like this: I have a bunch of elements I want to grab data from, the data is in the form of classes of the element children. <div id='container'> <span class='a'></span> <span class='b'></span> <span class='c'></span> </div> <div id='container2'> <span class='1'></span> <span class='2'></span> <span class='3'></span> </div> I have a method like this: jQuery.fn.grabData = function(expr) { return this.each(function() { var self = $(this); self.find("span").each(function (){ var info = $(this).attr('class'); collection += info; }); }); }; I to run the method like this: var collection = ''; $('#container').grabData(); $('#container2').grabData(); The collection should be adding to each other so that in the end I get this console.log(collection); : abc123 But collection is undefined in the method. How can I let the method know which collection it should be adding to? Thanks.

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