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• Should I make my project free software?

  - by SkyDan

  The story Over the last couple month I have been working on a pretty big project. It's an enterprise-level software, I designed to be used at a local gym, but I believe it can be used in other places, where things like keeping track of clients, attendances, purchases and payments are required. The problem Well recently, I started to think on how to mature this project from being home-made. Not just because I want my project to grow but also because I would like to have some gain from it. The solutions? And here I saw 2 paths: License the software under some restricted license and try to sell the software to other business around. This way I can get some money for college (I am a high school junior right now) License the software under some free license, publish it on GitHub or something, and try to engage other developers to participate in the project. This way I get experience of working in a team and a better chance that the project will keep growing. The latter would be a good + for my resume, when I'll trying to find a job. So far both ways seem pretty exciting and beneficial to me. The first one offers a good college career, while the second one offers some additional experience and the project's growth. The questions Can anyone point to some other +/- of these 2 options? What would the better option in my situation and why? Or are there other options?

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• .NET Reflector is no longer free - how does everyone feel about this? [closed]

  - by Schnapple

  The upcoming version of .NET Reflector, coming in March, will no longer have a free version. .NET Reflector started out as a free utility written by programmer Lutz Roeder and quickly became fairly indispensable to a lot of programmers. After about four years he sold it to RedGate software, who has maintained a free version ever since, as well as a "Pro" version about a year ago which adds capabilities and starts at $99/seat. The new version will no longer have a free version, will be $35 for the non-Pro versions, and the existing free versions will still work until the end of May. On the one hand it's annoying that the existing free versions will die and obviously I'd prefer there be a free version going forward. On the other hand I respect where RedGate is coming from and the cost for a license isn't prohibitively expensive. Plus it may encourage more frequent updates. EDIT: I originally said it was $35 for everyone but according to this FAQ there's still going to be a Pro version.

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• Explicitly pass context object versus injecting with IoC

  - by SonOfPirate

  I have a layered service application where the service layer delegates operations into the domain layer for execution. Many of these operations need to know the context under which they are operation. (The context included the identity of the current user, culture information, etc. received from the caller.) For example, I have an API method that returns a list of announcements. The list is based on the current user's role and each announcement is localized to their culture. The API is a thin-facade that delegates to an Application Service in my domain layer. The Application Service method obviously needs to know the context of the current request/operation as another call to the same API from another user should result in a different list. Within this method, we also have logging that uses some of the context information so we a clear understanding of the context when the operation was performed (this is especially useful if something goes wrong.) While this is a contrived example, in the real world, my Application Services will coordinate operations with many collaborative components, any number of them also needing the context information. My choice is to pass the context to the Application Service which would then pass it with any calls to collaborators or have the IoC container satisfy the dependency the Application Service and any collaborators have on the context. I am wondering if it is considered good/bad, best practices/code smell, etc. if I pass the context object as a parameter to the domain methods or if injecting the context via an IoC container is preferred. (EDIT: I should mention that the context object is instantiated per-request.)

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• Language to grammar in this automata

  - by rahul

  help me to solve this problem anbncn where n=1

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• Instantiating a context in LINQ to Entities

  - by Jagd

  I've seen two different manners that programmers approach when creating an entity context in their code. The first is like such, and you can find it all over the MSDN code examples: public void DoSomething() { using TaxableEducationEntities context = new TaxableEducationEntities()) { // business logic and whatever else } } The second is to create the context as a private attribute in some class that encapsulates your business logic. So you would have something like: public class Education_LINQ { private TaxableEducationEntities context = new TaxableEducationEntities(); public void DoSomething() { var result = from a in context.luAction select a; // business logic and whatever else } } Which way is more efficient? Assume that you have two methods, one called DoSomething1() and another called DoSomething2(), and both methods incorporate the using statement to open the context and do whatever with it. Were you to call one method after the other, would there be any superfluous overhead going on, since essentially both methods create the context and then clean it up when they're done? As opposed to having just one private attribute that is created when a class object is instantiated, and then in turn cleaned up when the object goes out of scope?

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• Parsing a string, Grammar file.

  - by defn

  How would I separate the below string into its parts. What I need to separate is each < Word including the angle brackets from the rest of the string. So in the below case I would end up with several strings 1. "I have to break up with you because " 2. "< reason " (without the spaces) 3. " . But Let's still " 4. "< disclaimer " 5. " ." I have to break up with you because <reason> . But let's still <disclaimer> . below is what I currently have (its ugly...) boolean complete = false; int begin = 0; int end = 0; while (complete == false) { if (s.charAt(end) == '<'){ stack.add(new Terminal(s.substring(begin, end))); begin = end; } else if (s.charAt(end) == '>') { stack.add(new NonTerminal(s.substring(begin, end))); begin = end; end++; } else if (end == s.length()){ if (isTerminal(getSubstring(s, begin, end))){ stack.add(new Terminal(s.substring(begin, end))); } else { stack.add(new NonTerminal(s.substring(begin, end))); } complete = true; } end++;

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• boost::Spirit Grammar for unsorted schema

  - by Hassan Syed

  I have a section of a schema for a model that I need to parse. Lets say it looks like the following. { type = "Standard"; hostname="x.y.z"; port="123"; } The properties are: The elements may appear unordered. All elements that are part of the schema must appear, and no other. All of the elements' synthesised attributes go into a struct. (optional) The schema might in the future depend on the type field -- i.e., different fields based on type -- however I am not concerned about this at the moment.

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• code throws std::bad_alloc, not enough memory or can it be a bug?

  - by Andreas

  I am parsing using a pretty large grammar (1.1 GB, it's data-oriented parsing). The parser I use (bitpar) is said to be optimized for highly ambiguous grammars. I'm getting this error: 1terminate called after throwing an instance of 'std::bad_alloc' what(): St9bad_alloc dotest.sh: line 11: 16686 Aborted bitpar -p -b 1 -s top -u unknownwordsm -w pos.dfsa /tmp/gsyntax.pcfg /tmp/gsyntax.lex arbobanko.test arbobanko.results Is there hope? Does it mean that it has ran out of memory? It uses about 15 GB before it crashes. The machine I'm using has 32 GB of RAM, plus swap as well. It crashes before outputting a single parse tree. The parser is an efficient CYK chart parser using bit vector representations; I presume it is already near the limit of memory efficiency. If it really requires too much memory I could sample from the grammar rules, but this will decrease parse accuracy of course.

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• Grammar/own-written parser?

  - by wvd

  Hello all, I'm doing some small projects which involve having different syntaxis for something, however sometimes these syntaxis are so easy that using a parser generator might be overkill. Now, when should I use a own-made parser, and when should I use a parser generator? Thanks, William van Doorn

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• Context menu on Intellj IDEA

  - by Otavio Macedo

  I have installed Intellij IDEA 10 on Linux (Ubuntu 8.04) and the way the context menu works is annoying me. The context menu is visible as long as I keep the right button pressed (if I release the button, the menu disappears). To click on a menu item, I have to position the cursor upon the item with the right button pressed and then release it. I've also figured out two alternative ways to keep the menu visible with the right button released: To right-click, drag, and release the button outside the context menu. Ctrl + Right-click or Shift + Right-click But I would expect the "normal" behavior: that when I right-click and release, the menu keeps visible until the next click (on an item or outside the menu). Is there a way to change this behavior? Thanks in advance.

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• Context Menu for Browser to download file to specific folder

  - by elcojon

  There is this website which has customized audio files for me. I would like to save them in a special folder. Now I don't want to select the "special folder" each time in the file-chooser dialogue of my browser. I would rather prefer to have a custom entry in the context menu when I right-click the download link. This context-menu-entry should do the trick and download the file to the predefined "special folder". How would I start about that? I am using Safari and Chrome. So a solution in either browser is fine. To get into the context menu of the browser, what kind of programming do I need to do? Is it an extension, plugin, etc.? Thanks

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• Windows 7 - add item to 'New' context menu

  - by Tingholm

  I've installed Access 2010 but have some software that can only handle the old .mdb files. When I right click an empty space in a folder and select 'New', I would like to create an .mdb file instead of .accdb. I've managed to remove the "New Access Database" that created a new .accdb file, but I can't find how to create a context menu item to make a new .mdb file. I've tried: Windows 7 - Add an item to 'new' context menu http://www.sevenforums.com/tutorials/22001-new-context-menu-edit-desktop.html However I've had no luck, nothing appears in the 'New' menu. Any ideas?

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• Geek Deals: Discounted Monitors, Cheap Peripherals, and Free Apps

  - by Jason Fitzpatrick

  Looking to save some cash while stocking up on computers, peripherals, apps, and other goodies? Hit up our deal list for discounts on all manner of geeky gear. We’ve combed the net and grabbed some fresh off the press deals for you to take advantage of. Unlike traditional brick and mortar sales internet deals are fast and furious so don’t be surprised if by the time you get to a particularly hot deal the stock is gone or the uses-per-coupon rate has been exceeded. How To Encrypt Your Cloud-Based Drive with BoxcryptorHTG Explains: Photography with Film-Based CamerasHow to Clean Your Dirty Smartphone (Without Breaking Something)

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• Free tools for SQL Server - Automating Execution Plan Analysis

  - by jchang

  Since this topic is being discussed, I will plug my own tools, SQL Exec Stats and (a little dated) documentation the main capability is cross-referencing index usuage with specific execution plans. another feature is generating execution plans for all stored procedures in a database, along with the index usage cross-reference. There are several sources of execution plans or plan handles, this could be a live trace, a previously saved trace, previously saved sqlplan files, from dm_exec_cached_plans,...(read more)

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• Free domains for site names?

  - by Prix

  I am going to create a forum for my clan from a game and I was looking for a way to point/redirect to an ugly/long domain name from a shorter domain name. I am looking for a provider similar to http://www.freedomain.co.nr/ but I am looking for more options and different domain extensions to decide which one would be easiest to use. So it would be something like www.niceclanname.domainext - www.unglyhardnametouseandremember.com/clan/ What are the available services that do this?

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• Free tools for SQL Server - Automating Execution Plan Analysis

  - by jchang

  Since this topic is being discussed, I will plug my own tools, SQL Exec Stats and (a little dated) documentation the main capability is cross-referencing index usuage with specific execution plans. another feature is generating execution plans for all stored procedures in a database, along with the index usage cross-reference. There are several sources of execution plans or plan handles, this could be a live trace, a previously saved trace, previously saved sqlplan files, from dm_exec_cached_plans,...(read more)

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• Check Your Spelling, Grammar, and Style in Firefox and Chrome

  - by Matthew Guay

  Are you tired of making simple writing mistakes that get past your browser’s spell-check?  Here’s how you can get advanced grammar check and more in Firefox and Chrome with After the Deadline. Microsoft Word has spoiled us with grammar, syntax, and spell checking, but the default spell check in Firefox and Chrome still only does basic checks.  Even webapps like Google Docs don’t check more than basic spelling errors.  However, WordPress.com is an exception; it offers advanced spelling, grammar, and syntax checking with its After the Deadline proofing system.  This helps you keep from making embarrassing mistakes on your blog posts, and now, thanks to a couple free browser plugins, it can help you keep from making these mistakes in any website or webapp. After the Deadline in Google Chrome Add the After the Deadline extension (link below) to Chrome as usual. As soon as it’s installed, you’re ready to start improving your online writing.  To check spelling, grammar, and more, click the ABC button that you’ll now see at the bottom of most text boxes online. After a quick scan, grammar mistakes are highlighted in green, complex expressions and other syntax problems are highlighted in blue, and spelling mistakes are highlighted in red as would be expected.  Click on an underlined word to choose one of its recommended changes or ignore the suggestion. Or, if you want more explanation about what was wrong with that word or phrase, click Explain for more info. And, if you forget to run an After the Deadline scan before submitting a text entry, it will automatically check to make sure you still want to submit it.  Click Cancel to go back and check your writing first.   To change the After the Deadline settings, click its icon in the toolbar and select View Options.  Additionally, if you want to disable it on the site you’re on, you can click Disable on this site directly from the popup. From the settings page, you can choose extra things to check for such as double negatives and redundant phrases, as well as add sites and words to ignore. After the Deadline in Firefox Add the After the Deadline add-on to Firefox (link below) as normal. After the Deadline basically the same in Firefox as it does in Chrome.  Select the ABC icon in the lower right corner of textboxes to check them for problems, and After the Deadline will underline the problems as it did in Chrome.  To view a suggested change in Firefox, right-click on the underlined word and select the recommended change or ignore the suggestion. And, if you forget to check, you’ll see a friendly reminder asking if you’re sure you want to submit your text like it is. You can access the After the Deadline settings in Firefox from the menu bar.  Click Tools, then select AtD Preferences.  In Firefox, the settings are in a options dialog with three tabs, but it includes the same options as the Chrome settings page.  Here you can make After the Deadline as correction-happy as you like.   Conclusion The web has increasingly become an interactive place, and seldom does a day go by that we aren’t entering text in forms and comments that may stay online forever.  Even our insignificant tweets are being archived in the Library of Congress.  After the Deadline can help you make sure that your permanent internet record is as grammatically correct as possible.  Even though it doesn’t catch every problem, and even misses some spelling mistakes, it’s still a great help. Links Download the After the Deadline extension for Google Chrome Download the After the Deadline add-on for Firefox Similar Articles Productive Geek Tips Quick Tip: Disable Favicons in FirefoxStupid Geek Tricks: Duplicate a Tab with a Shortcut Key in Chrome or FirefoxHow to Disable the New Geolocation Feature in Google ChromeStupid Geek Tricks: Compare Your Browser’s Memory Usage with Google ChromeStop YouTube Videos from Automatically Playing in Chrome TouchFreeze Alternative in AutoHotkey The Icy Undertow Desktop Windows Home Server – Backup to LAN The Clear & Clean Desktop Use This Bookmarklet to Easily Get Albums Use AutoHotkey to Assign a Hotkey to a Specific Window Latest Software Reviews Tinyhacker Random Tips Acronis Online Backup DVDFab 6 Revo Uninstaller Pro Registry Mechanic 9 for Windows Easily Search Food Recipes With Recipe Chimp Tech Fanboys Field Guide Check these Awesome Chrome Add-ons iFixit Offers Gadget Repair Manuals Online Vista style sidebar for Windows 7 Create Nice Charts With These Web Based Tools

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• Maintaining state and data context between requests in ASP.NET + EF4

  - by Nick

  I have a EF4/ASP.NET web application that is structured to use POCOs and generic repositories, based essentially on this excellent article. The application is relatively sophisticated with one page that involves selection and linking of multiple entities to build up a complex user profile. This requires access to multiple entity types (20 or so) and associated repositories across multiple posts. When a repository is first accessed it uses the existing data context if exists, else it creates a new context. The problem is that if the lifetime of the context is only per-request (as suggested in the article) then you have to deal with multiple contexts and the complexity around detaching and attaching entities from contexts. My solution is to share the context between posts by creating a single View Model that includes all required repositories (initialised to share the same context) plus any associated data and store this model in a Session variable, retrieving from Session on subsequent page requests. Therefore maintaining the same context across all posts until the profile is saved. This works fine BUT I am concerned that I don't actually know exactly what is stored in the model session variable or more importantly the size of the Session variable. So two questions I suppose: firstly should I look for a better solution to handle the shared context across posts issue (any suggestions welcome)? And secondly what is actually stored in the Session when it includes a repository plus context? Any help appreciated!

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• The following grammar is LL1, SLR, LR(1), LALR?

  - by Mike

  P - {D ; C} D - d; D| d C - c; C | c a) Is the grammar LL(1)? Explain your answer. b) Is the grammar SLR(1)? Explain your answer. c) Is the grammar LR(1)? Explain your answer. d) Is the grammar LALR? Explain your answer. As for my answers I actually got no for them all... so I'm thinking I did something wrong Here is my explanation. a) It is not LL(1) because it is not left factored. b) It is not SLR, because of the transition diagram item 2 ( which is... ) D- d . ; D D- d . We need to consult the follow set, Follow(D) = ; Therefore this is not SLR c) It is not LR(1) because of... item 1 P- {D.;C} , $ D- .d;D , ; D- .d , ; item 2 D- d.; D , ; D- d. , ; item 3 D- d; . D , ; D- .d;D , ; D- .d , ; Since item 2 goes to item 3 with ;, AND "D- d."'s (in item 2) look ahead token is also ;. this causes a reduce to shift conflict, therefore this grammar is not LR(1) d) This grammar is not LALR because it is not LR(1) Thanks for your help!

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• help Add Any Application Shortcut in Desktop Context Menu

  - by blackjack

  i got the info here but after adding that i didn't get any shortcut on my desktop contest menu :( pls help me i want it only on my desktop context menu Open regedit and goto: CODEHKEY_CLASSES_ROOT\Directory\Background\shell now under this key create another key with any name and in right-side pane set its value to the label, which you want to show in desktop context menu, like Media Player, Winamp, Firefox, anything else. Now create another key under this newly created key with name command. and in right-side pane set its value to the exact path of application, like: C:\Program Files\Windows Media Player\wmplayer.exe C:\Program Files\Winamp\winamp.exe etc... Thats it. Now you can check your favorite application shortcut in desktop context menu. You can create as many shortcut as you want. Simply create a separate key for all the applications. Following is a ready-made code: CODEWindows Registry Editor Version 5.00 [HKEY_CLASSES_ROOT\Directory\Background\shell\WMP] @="Windows Media Player" [HKEY_CLASSES_ROOT\Directory\Background\shell\WMP\command] @="C:\Program Files\Windows Media Player\wmplayer.exe" Just change the label and path to ur desired application and save with the name "vishal.reg" (including the quotes) and run it. U can also set the application shortcut to show only when u press key by adding "Extended" String value in right-side pane of the newly created key: CODEWindows Registry Editor Version 5.00 [HKEY_CLASSES_ROOT\Directory\Background\shell\WMP] @="Windows Media Player" "Extended"="" [HKEY_CLASSES_ROOT\Directory\Background\shell\WMP\command] @="C:\Program Files\Windows Media Player\wmplayer.exe"

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• Find out which task is generating a lot of context switches on linux

  - by Gaks

  According to vmstat, my Linux server (2xCore2 Duo 2.5 GHz) is constantly doing around 20k context switches per second. # vmstat 3 procs -----------memory---------- ---swap-- -----io---- -system-- ----cpu---- r b swpd free buff cache si so bi bo in cs us sy id wa 2 0 7292 249472 82340 2291972 0 0 0 0 0 0 7 13 79 0 0 0 7292 251808 82344 2291968 0 0 0 184 24 20090 1 1 99 0 0 0 7292 251876 82344 2291968 0 0 0 83 17 20157 1 0 99 0 0 0 7292 251876 82344 2291968 0 0 0 73 12 20116 1 0 99 0 ... but uptime shows small load: load average: 0.01, 0.02, 0.01 and top doesn't show any process with high %CPU usage. How do I find out what exactly is generating those context switches? Which process/thread? I tried to analyze pidstat output: # pidstat -w 10 1 12:39:13 PID cswch/s nvcswch/s Command 12:39:23 1 0.20 0.00 init 12:39:23 4 0.20 0.00 ksoftirqd/0 12:39:23 7 1.60 0.00 events/0 12:39:23 8 1.50 0.00 events/1 12:39:23 89 0.50 0.00 kblockd/0 12:39:23 90 0.30 0.00 kblockd/1 12:39:23 995 0.40 0.00 kirqd 12:39:23 997 0.60 0.00 kjournald 12:39:23 1146 0.20 0.00 svscan 12:39:23 2162 5.00 0.00 kjournald 12:39:23 2526 0.20 2.00 postgres 12:39:23 2530 1.00 0.30 postgres 12:39:23 2534 5.00 3.20 postgres 12:39:23 2536 1.40 1.70 postgres 12:39:23 12061 10.59 0.90 postgres 12:39:23 14442 1.50 2.20 postgres 12:39:23 15416 0.20 0.00 monitor 12:39:23 17289 0.10 0.00 syslogd 12:39:23 21776 0.40 0.30 postgres 12:39:23 23638 0.10 0.00 screen 12:39:23 25153 1.00 0.00 sshd 12:39:23 25185 86.61 0.00 daemon1 12:39:23 25190 12.19 35.86 postgres 12:39:23 25295 2.00 0.00 screen 12:39:23 25743 9.99 0.00 daemon2 12:39:23 25747 1.10 3.00 postgres 12:39:23 26968 5.09 0.80 postgres 12:39:23 26969 5.00 0.00 postgres 12:39:23 26970 1.10 0.20 postgres 12:39:23 26971 17.98 1.80 postgres 12:39:23 27607 0.90 0.40 postgres 12:39:23 29338 4.30 0.00 screen 12:39:23 31247 4.10 23.58 postgres 12:39:23 31249 82.92 34.77 postgres 12:39:23 31484 0.20 0.00 pdflush 12:39:23 32097 0.10 0.00 pidstat Looks like some postgresql tasks are doing 10 context swiches per second, but it doesn't all sum up to 20k anyway. Any idea how to dig a little deeper for an answer?

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• Very slow context menu in Windows 8

  - by burzum

  I've installed Windows 8 Pro on a blank new SSD, the system is on c:\. I do not think this problem was existent when I started using Windows 8 but I think it started to happen after I've symlinked (mklink /D) a folder from another drive, a SATA drive, to c:\xampp\htdocs. When I right click a file or folder inside the symlinked folder it always takes at least ~5-10 seconds until the context menu comes up. This also happens sometimes, but not all the time for files and folder outside of the symlinked folder. Also when I delete folders the delete folder dialog seems to get locked and does not continue. When I delete a folder using rmdir from the command line it works fine and pretty fast. It appears to me like the file explorer in Windows 8 is pretty bad compared to any other Windows I've used before? Any idea how to get these problems solved? I've already removed a lot of context menu entries; the only ones left are the tortoise git context menus but I'm sure that's not the problem.

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• Free Website Builder to Make a Free Website

  Some providers have more than 2,000 website templates that are fully functional and already incorporate the basic text and images that are appropriate for the type of company that represents this web design. Use an existing template as a starting point, making your construction project site much easier.

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• Free SEO - Market Your Website For Free!

  There are a number of things that you can do yourself without the assistance of a search engine optimisation (SEO) professional to improve your websites search rankings and improve its visibility on the Internet. The points mentioned below will help to promote your website by making search engines more aware of your website and it does not cost you anything to implement!

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• "Arbitrary" context free grammars?

  - by danwroy

  Long time admirer first time inquirer :) I'm working on a program which derives a deterministic finite-state automata from a context-free grammar, and the paper I have been assigned which explains how to do this keeps referring to "arbitrary probabilistic context-free grammars" but never defines the meaning of "arbitrary" in relation to PCFGs. I assume they mean "any old PCFG" but then why not just say "any PCFG"? The term also turns up in several Wikipedia entries. At the top of the CFG page there is a reference to arbitrariness in relation to CFGs on ("clauses can be nested inside clauses arbitrarily deeply"), but doesn't make clear why someone would refer to a PCFG or subset of PCFGs as arbitrary. In case anyone is curious, the paper is Parsing and Hypergraphs by Klein and Manning (2001); I've also been reading two other papers by them related to this one (An Agenda-Based Chart Parser for Arbitrary Probabilistic Context-Free Grammars and Empirical Bounds, Theoretical Models, and the Penn Treebank) which use the term extensively but never explain it either. Thanks for your help!

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