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  • Emacs: Define a function which loads the file where the function itself is defined

    - by damd
    I'm refactoring a bit in my Emacs set up and have come to the conclusion that I want to use a different init file than the default one. So basically, in my ~/.emacs file, I have this: (load "/some/directory/init.el") Up until now, that's been working just fine. However, now I want to redefine an old command that I've used for ages, which opens my init file: (defun conf () "Open a buffer with the user init file." (interactive) (find-file user-init-file)) As you can see, this will open ~/.emacs no matter what I do. I want it to open /some/directory/init.el, or wherever the conf command itself is defined. How would I do that?

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  • c# create an arbitrary length generic parameter string e.g. ?,?,?

    - by Sky Sanders
    I know I am forgetting to remember how to do this and it is late. I want to, in an elegant manner, build a placeholder list for a munged sql command. Have a command with an arbitrary number of parameters, need to build ?,?,? Did I mention that it was a wet brain fart? this is what came out: Regex.Replace(new string('?', _command.Parameters.Count), @"\?\?", @"\?,\?"); You are welcome to make me feel like more of an idiot if you just remember me what I am forgetting. ;-)

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  • Eclipse 3.5: Implementing my own context menu for a MultipageEditorPart --> no viewer involved

    - by Patrick
    Hello! :-) In my current RCP-project i use a MultipageEditorPart. It has various pages, with simple SWT composites on it. The composites contain some Text and Combo elements. When the user right clicks onto the editor page, I want a context menu to open. This menu holds a command for creating a new editor page, with a composite on it. The command is already working, but I'm quite clueless about how to implement the context menu for the editor. Can someone help with this?

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  • Why do most of us use 'i' as a loop counter variable?

    - by kprobst
    Has anyone thought about why so many of us repeat this same pattern using the same variable names? for (int i = 0; i < foo; i++) { // ... } It seems most code I've ever looked at uses i, j, k and so on as iteration variables. I suppose I picked that up from somewhere, but I wonder why this is so prevalent in software development. Is it something we all picked up from C or something like that? Just an itch I've had for a while in the back of my head.

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  • IncidentsTracker v1.2 Screenshots

    - by samkea
    he IncidentsTracker v1.2 System is a system that was developed to track Incidents happening in any particular country. It is incorporated with a maping component to enable end users search for places where an incident has happened, enter data about it and then produce reports.It's a Winforms software that was developed in a plugin style using C#  with an extensibility pattern/framework. It sits on an SQl Server backend but can also use any other databases prefered. Its Administrator just has to add the path where the database will be and it will autio create the database. This software was orignally developed to help UN Agancies and NGOs in thier work but can also be ustilised by other entities like the police, the human rights organisations, roads authority, etc etc. The development of a newer version(IncidentTracker v2) has been started in silverlight. Screenshot 01: Login. Screenshot 02: View and Search. Screenshot 03: Mapping Component

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  • Trying to Install Rails 3

    - by Rob Fuller
    I'm trying to install Rails 3 on a brand new MacBook Pro running OS X 10.6.3, Ruby 1.8.7, and Rails 2.3.5 and I'm wondering if I've hosed myself. So far, I've run these commands: $ gem update --system $ gem install arel tzinfo builder memcache-client rack rack-test rack-mount erubis mail text-format thor bundler i18n $ gem install rails --pre However, when I run the last command, I get this error: ERROR: While executing gem ... (Gem::FilePermissionError) You don't have write permissions into the /usr/bin directory. I think it wants me to run the command with sudo so that it can write over /usr/bin/rails. But if I do that, won't I be overwriting my Rails 2.3.5 executable? I don't want to do that. Instead, I'd like to keep both versions of Rails. Can anyone help? Thanks.

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  • How should I access frame buttons from a controller in an MVC approach?

    - by Loris
    I'm developing an italian card game using the mvc pattern. I have the class GameFrame that contains the view. The user's card are buttons (JButton objects). I have 3 controllers: GameController: to control the game in general. Contains the game loop. HumanPlayerController: to control the user input ComputerPlayerController: contains the AI of the computer PlayerController: is an interface with the makeTurn() method. It's implemented by HumanP.C. and ComputerP.C. HumanPlayerController implements ActionListener too. But what is the right way to access to the GameFrame buttons? I need it for understand which card was chosen. GameFrame and HumanPlayerController are in different packages. Should i make the JButtons public?

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  • Immutable design with an ORM: How are sessions managed?

    - by Programmin Tool
    If I were to make a site with a mutable language like C# and use NHibernate, I would normally approach sessions with the idea of making them as create only when needed and dispose at request end. This has helped with keeping a session for multiple transactions by a user but keep it from staying open too long where the state might be corrupted. In an immutable system, like F#, I would think I shouldn't do this because it supposes that a single session could be updated constantly by any number of inserts/updates/deletes/ect... I'm not against the "using" solution since I would think that connecting pooling will help cut down on the cost of connecting every time, but I don't know if all database systems do connection pooling. It just seems like there should be a better way that doesn't compromise the immutability goal. Should I just do a simple "using" block per transaction or is there a better pattern for this?

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  • How to play many sounds at once in OpenAL

    - by Krom Stern
    I'm developing an RTS game and I would like to add sounds to it. My choice has landed on OpenAL. I have plenty of units which from time to time make sounds: fSound.Play(sfx_shoot, location). Sounds often repeat, e.g. when squad of archers shoots arrows, but they are not synced with each other. My questions are: What is the common design pattern to play multiple sounds in OpenAL, when some of them are duplicate? What are the hardware limitations on sounds count and tricks to overcome them?

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  • how to have 'find' not return the current directory

    - by Pinpin
    I'm currently trying to find (and copy) all files and folder structure matching a specific pattern, in a specified directory and I'm so nearly there! Specifically, I want to recursively copy all folders not begining with a '_' character from a specified path. find /source/path/with/directories -maxdepth 1 -type d ! -name _\* -exec cp -R {} /destination/path \; In the /source/path/with/directories/ path are machine-specific directories beginning with '_' and others, and I'm only interested in copying the others. For a reason beyond me, the find command returns the /source/path/with/directories/ directory, and therefore copies its content, directories begining with '_' included. Anyone have a hint as to why that is? Thanks, Pascal

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  • Xcodebuild failing to pick up environment values from project file?

    - by egrunin
    I'm using Xcode 3.2.6, MacOSX. I have a globally visible environment setting: ICU_SRC=~/Documents/icu/source This really is an environment setting, it's set at login time. When I open up Terminal, it's there. In my project, under Header Search Paths I've added this: $(ICU_SRC)/i18n $(ICU_SRC)/common These expand correctly when I compile inside the IDE. When I look at the build results, I see this: -I/Users/eric.grunin/Documents/icu/source/i18n -I/Users/eric.grunin/Documents/icu/source/common When I build from the command line, however, it fails. What I see is this: -I/i18n -I/common Here's the command I'm using to compile: /usr/bin/env -i xcodebuild -project my_project.xcodeproj -target "my_program" -configuration Release -sdk macosx10.6 build What am I doing wrong? Edited to add: Apple explains Setting environment variables for user processes

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  • ASP.NET MVC Portable Areas - Can they communicate and be used as a plugin-like architecture?

    - by Beton
    I'll get straight to the point: I was wondering if there is a common pattern to use portable areas as a components of a plugin-like architecture. Example: We've got 3 plugins (portable areas) packaged and distributed via NuGet feed. Each of them is following the standard MVC structure (has it own Models, Views and Controllers). Lets say login form, header and footer. What I was wondering if there is a way to make them communicate. For example: when user logs on, login plugin executes it own logic, logs the user and then it updates the state of the header plugin with changes it state accordingly. Thanks in advance.

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  • rails g migration error

    - by user1506183
    I don't know what to do. Try to use command $ rails g migration vacancy but this command give me error: invoke active_record /home/proger/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/psych.rb:203:in `parse': (<unknown>): mapping values are not allowed in this context at line 21 column 11 (Psych::SyntaxError) from /home/proger/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/psych.rb:203:in `parse_stream' from /home/proger/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/psych.rb:151:in `parse' ... There are many rows in error code I don't know how to fix that Thanks

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  • postgreSQL - pg_class question

    - by Sachin Chourasiya
    PostgreSQL stores statistics about tables in the system table called pg_class. The query planner accesses this table for every query. These statistics may only be updated using the analyze command. If the analyze command is not run often, the statistics in this table may not be accurate and the query planner may make poor decisions which can degrade system performance. Another strategy is for the query planner to generate these statistics for each query (including selects, inserts, updates, and deletes). This approach would allow the query planner to have the most up-to-date statistics possible. Why postgres always rely on pg_class instead?

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  • Creating standalone, console (shell) for domain-specific operations

    - by mr.b
    Say that I have a system service, and I want to offer a low-level maintenance access to it. For that purpose, I'd like to create a standalone, console application that somehow connects to server process and lets user type in commands, allow it to use auto-completion and auto-suggestion on single/double TAB press (just like linux bash shell, mysql cli, cmd.exe, and countless others), allow command line editing capabilities (history, cursor keys to move around text..), etc. Now, it's not that much of a problem to create something like that by rolling my own from scratch, handling user input, scanning pressed keys, and doing correct actions. But, why reinvent the wheel? Is there some library/framework that helps with this kind of problems, just like readline library that offers improved command-line editing capabilities under linux? Of course, this new "shell" would respond only to valid, domain-specific commands, and would suggest valid arguments, options, switches... Any ideas? Thanks!

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  • Menubar + Commandbar on WM 5.0 and WM 6.5.3

    - by heller.rublog
    I'm developing a Windows Mobile application, and I faced a problem with CCommandBar that combines toolbar and menubar. Well, I mean the following: m_wndCommandBar.InsertMenuBar(IDR_MAINFRAME); m_wndCommandBar.LoadToolBar(IDR_MAINFRAME); I have only one root menu option in my command bar and some buttons in toolbar. It works perfectly on Windows Mobile till version 6.5.3, but on WM 6.5.3 all toolbar buttons have the same dimensions as the menu item: screen. Is it possible to force WM 6.5.3 to draw command bar the same way as WM 5.0 did? Of cource I can use only toolbar and throw away my menubar, but I want to save the old UI. P.S. I'm sorry for my English mistakes. I was always failing at school :-(

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  • giving a query as part of a uri in autobench

    - by Deepika
    I am using autobench for doing becnhmark. An example of autobench command is as shown below. autobench --single_host --host1 testhost.foo.com --uri1 /index.html --quiet --timeout 5 --low_rate 20 --high_rate 200 --rate_step 20 --num_call 10 --num_conn 5000 --file bench.tsv** The uri which I have to specify has a query attached to it. When I run the command which has the query, I get the following result dem_req_rate req_rate_localhost con_rate_localhost min_rep_rate_localhost avg_rep_rate_localhost max_rep_rate_localhost stddev_rep_rate_localhost resp_time_localhost net_io_localhost errors_localhost 200 0 20 0 0 0 0 0 0 101 400 0 40 0 0 0 0 0 0 101 600 0 60 0 0 0 0 0 0 101 800 0 80 0 0 0 0 0 0 101 1000 0 100 0 0 0 0 0 0 101 1200 0 120 0 0 0 0 0 0 101 1400 0 140 0 0 0 0 0 0 101 1600 0 160 0 0 0 0 0 0 101 1800 0 180 0 0 0 0 0 0 101 2000 0 200 0 0 0 0 0 0 101 The query request, response are all zeroes. Can anybody please tell me how to give a query as part of the uri? Thank you in advance

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  • Dell Vostro 1510 trackpad

    - by user18055
    A week ago I moved totally from Windows 7 to Ubuntu. I've been really happy with the transition bar one annoying glitch. My trackpad sometimes works, sometimes doesn't. All other hardware including peripherals work flawlessly, including a Logitech ball mouse, Wacom Bamboo pen and touch and wireless Logitech keyboard and mouse combo. I can't see any pattern to when and why the trackpad works. Occasionally on rebooting, it will work, but then I can reboot 10x in a row and it won't work, then I leave it a day, then reboot and it works flawlessly. Any ideas on a solution or appropriate method for me to deb it? My knowledge of Ubuntu/Linux is sketchy at best so I could do with a little help :)

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  • Deploying with Capistrano & Subversion. Working copy locked

    - by Rimian
    I'm deploying to a Debian server with Capistrano which fails due to locked a working copy. I narrowed it down to this: svn checkout http://myrepo.net/mysite/tags/1.0 /var/www/mysite/releases/1234 So if I run: cap invoke COMMAND='svn checkout http://myrepo.net/mysite/tags/1.0 /var/www/mysite/releases/1234' I get an error: svn: Working copy '/var/www/mysite/releases/1' locked Clean up makes no difference. The same command runs fine from the server. When I list the files in 1234/ I can see all the .svn and working copy files. Can someone please point me in the right direction to resolve this? How do I tell if the working copy is really locked? svn status shows nothing...

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  • What is the standard way to parse floats at runtime in C?

    - by Joel J. Adamson
    Hello, I have a scientific application for which I want to input initial values at runtime. I have an option to get them from the command line, or to get them from an input file. Either of these options are input to a generic parser that uses strtod to return a linked list of initial values for each simulation run. I either use the command-line argument or getline() to read the values. The question is, should I be rolling my own parser, or should I be using a parser-generator or some library? What is the standard method? This is the only data I will read at runtime, and everything else is set at compile time (except for output files and a few other totally simple things). Thanks, Joel

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  • Why is capistrano acting up like this?

    - by Matt
    I am having an issue with my deploy i ran cap deploy and got this Warning: Permanently added 'github.com,207.97.227.239' (RSA) to the list of known hosts. ** [174.143.150.79 :: out] Permission denied (publickey). ** fatal: The remote end hung up unexpectedly command finished *** [deploy:update_code] rolling back * executing "rm -rf /home/deploy/transprint/releases/20110105034446; true" servers: ["174.143.150.79"] [174.143.150.79] executing command here is my deploy.rb set :application, "transprint" set :domain, "174.149.150.79" set :user, "deploy" set :use_sudo, false set :scm, :git set :deploy_via, :remote_cache set :app_path, "production" set :rails_env, 'production' set :repository, "[email protected]:myname/something.git" set :scm_username, 'deploy' set :deploy_to, "/home/deploy/#{application}" role :app, domain role :web, domain role :db, domain, :primary => true please help

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  • Force NCover 1.5.8 to use v4 framework like testdriven.net does?

    - by Sam Holder
    I want to run coverage from the command line, but can't seem to get NCover 1.5.8 to instrument the code. It must be possible as when I run coverage tests with TestDriven.net it works. the difference seems to be that TD.NET is able to get NCover to use framework 4.0 (you get this in the log when it runs : MESSAGE: v4.0.30319) but from the command line I can't make it (I get this in the log : MESSAGE: v2.0.50727) So how can I make NCover play nice with nunit from the commandline, like it does with TD.NET?

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  • "Best fit" to avoid reuse of object instances in a collection

    - by Simon
    Imagine I have a collection of object instances which represent activities for a user to undertake. Dependent on user attributes, I have to randomly select instances to present activities to the user. For some users, I need to present more activities to them than there are available activities in which case, I want to use the following algorithm. If all available activities have already been presented to the user, then re-select a "used" activity, selecting the earliest presented activity ordered by frequency of use. In other words, try to reduce repetition and where repetition is unavoidable, use the instances which have been repeated less often and were presented furthest back in time. Before I go on to code that algorithm, I wondered if there is some existing pattern I can re-use? [EDIT] "Furthest back in time" is not relevant as I will pass the algorithm an ordered collection of used instances where the first entry is the first presented.

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