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• What Windows editor has CORRECT EOL whitespace handling?

  - by blueshift

  I'm looking for a Windows text editor for programming that handles EOL whitespace CORRECTLY, which for my idea of correct means: Strip all EOL whitespace on save, EXCEPT on lines that I haven't edited. This is to minimise the amount of EOL whitespace evil in my world, but not pollute SCM diff/blame with whitespace-only fixes (I have to deal with old / other people's code). I have played with TextPad, Notepad++, Kodomo Edit and Programmer's Notepad 2, and found all of them lacking. Also: I don't get along with vi, and I am unsure about Emacs on Windows. @Matti Virkkunen: I could mess with diff, but I want to fix the problem, not the symptoms. Fixing diff means all my, others, and server side diff tools need to be fixed, and doesn't fix space/noise/hash change issues in SCM. Example pet hate using that system: "update" tells me a file has changed. Diff shows no changes.

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• Intermittent "No Database Selected" in PHP/MySQL?

  - by ANE

  Have a PHP/MySQL form with a dropdown box containing a list of 350 names. When any random name is selected, sometimes it works & displays info about that name from the database, and sometimes the form gives the error "No Database Selected". Here's what I've tried, pretty much grasping at straws as I'm not a programmer: Increasing max_connections in /etc/my.cnf from 200 to 2000 (even though only 4-5 connections are made and it's a lightly used server) Changing mysql_pconnect to mysql_connect Adding the word true to this connection string: $mysql = mysql_pconnect($hostname_mysql, $username_mysql, $password_mysql, true) or trigger_error(mysql_error(),E_USER_ERROR); Changing the word require_once to require on this line: [?php require('/home/user/Connections/mysql.php'); ?] Enabling MySQL & PHP query & error logging. (no errors logged) Here is the code: [removed old bad code] Update: Working answer from Rob Apodaca below.

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• system requirements for Visual Studio 2010

  - by user110182

  My team is currently using VS2005 with the following development PCs that are a few years old: XP, Pentium D 2.8GHz, 2GB RAM. My gut tells me that this is going to be poor hardware for VS2010 development. I am not running VS2010 beta but I am running Blend 3 beta and the performance is bad. Can you point me to anything that I can show my boss to convince him to buy 6 new machines for my team? Edit below after initial answer from Jon: I should have added that my boss wants to upgrade current machines with new hard-drives so I am trying to use this opportunity to take a look forward and see if a HD upgrade is really worth it. This HD upgrade would not just be simple installation of 2nd drive but would replace current drive and would involve backup/restore or reinstallation headaches. There would be the added benefit of 64bit development too, something that we have been talking about.

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• How to Programmatically Identify a PI Font (a Dingbat) under OS X

  - by Glenn Howes

  There is a class of fonts called Pi fonts whose glyphs, under OS X, get mapped to the private Unicode space 0xF021-0xF0FF such that if you subtract 0xF000 from each unicode character to retrieve the 8-bit version of the character and be able to draw that character as if it were a standard Roman character. My question is how do I recognize these fonts? It's obvious the system can do so because there is a category on the Special Characters palette called "Pi Fonts" which apparently has the various such fonts installed on my system. In my case they are BookshelSymbolSeven, MSReferenceSpeciality, MT-Extras, Marlett, MonotypeSorts, Webdings, and various Wingdings. If I use the old fashioned QuickDraw routines to ask for the TextEncoding of these fonts, I get a value of 0x20000 which I do not see in the system header file TextCommon.h. Am I supposed to treat any font with a TextEncoding of 0x20000 as a Pi Font? And I'd rather not use any QuickDraw font handling routines for obvious reasons.

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• Trying to Unit Test A Class That Makes DB Queries Using Hibernate And Can't Get Session Created...

  - by Jared Michaels

  I am trying to implement JUnit tests for a class that performs DB queries using Hibernate. When I create the class under test, I get access to the session through the factory by doing the following: InitialContext context = new InitialContext(); sessionFactory = (SessionFactory) context.lookup(hibernateContext); This works fine when I deploy this to JBoss 5.1. I am trying to figure out how to get this to work with my JUnit test. I keep getting an exception stating that I "Need to specify class name in environment or system property, or as an applet parameter, or in an application resource file: java.naming.factory.initial". I've searched high and low but haven't been able to find any information about what specifically I need to do to get this to work. I am not using Spring or any frameworks, just plain old Java and JUnit.

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• How to convert this foreach loop into Linq code?

  - by a-galkin

  I am new one with Linq and I would like to modify my old c# code to use Linq. The idea of this code to select all tables where it's not set and reference’s field PrimaryTable equal "myTable" foreach (Table table in dbServer.Tables) { if (!table.IsSet) { foreach (Reference refer in table.References) { if (refer.PrimaryTable == "myTable") { tables.Add(table); } } } } After digging in internet I have got this code var q = from table in dbServer.Tables let refers = from refer in table.References where refer.PrimaryTable == "myTable" select refer.ForeignTable where refers.Contains(table.Name) select table; But it does not work at all and I need your help to make it works. Thanks in advance.

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• Restoring Mac-bootcamp-windows-partition image to Windows machine

  - by jpwagner

  Hi, I'm running Windows XP sp3 on my mac using bootcamp. Objective: I'd like to move this partition to a windows machine. This is what I tried: 1. create image using winclone 2. restore drive to disk partition on windows machine using paragon 3. reboot from new partition Results: it attempts to boot in XP (windows flag and progress bar load screen) but then gives me the old BSOD. safe mode just hangs while loading. (I then uninstalled KB977165 on a hunch, but that did nothing to help the issue.) Any ideas, advice, etc would be greatly appreciated. Thanks!

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• Supporting more than one codebase in ANSI-C

  - by Ilker Murat Karakas

  I am working on a project, with an associated Ansi-C code base. (let me call this the 'main' codebase). I now am confronted with a typical problem (stated below), which I believe I would be able to solve much easily if I had an object-oriented language at hand. The problem is this: I will have to start more than one codebases; i.e. I will have to start supporting a parallel codebase (even maybe more in the future). The initial codebases for all the new (i.e. parallel) codebases will initially be identical as the old (i.e. 'main') codebase. As we are talking about the 'C' language, I have till now been thinking of adding '#ifdef' statements to code, and writing the branch-spacific code inside those 'ifdef' blocks. Hoping that I made the problem clear (enough!), I would like to hear thoughts on clever patterns that would help me handle this problem elegantly in Ansi C. Cheers

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• Best way to play MIDI sounds using C#

  - by jerhinesmith

  I'm trying to rebuild an old metronome application that was originally written using MFC in C++ to be written in .NET using C#. One of the issues I'm running into is playing the midi files that are used to represent the metronome "clicks". I've found a few articles online about playing MIDI in .NET, but most of them seem to rely on custom libraries that someone has cobbled together and made available. I'm not averse to using these, but I'd rather understand for myself how this is being done, since it seems like it should be a mostly trivial exercise. So, am I missing something? Or is it just difficult to use MIDI inside of a .NET application?

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• Does an Intent's extras still get flattened into a Parcel even if the new activity is being started

  - by Neil Traft

  I was wondering... So if you start a new activity via an intent, the intent has to be serialized and deserialized because you may have to send the intent to a separate VM instance via IPC. But what if the PackageManager knows that your new activity will be created on the current task? It seems like a reasonably Googly optimization would be not to serialize the intent at all, since it's all happening inside the same VM. But then again, you can't just allow the new activity to use the same instance of each parcelable, because any changes made by the new activity would show up in the old activity and the programmer might not be expecting this. So, is this optimization being done? Or do the extras always get marshalled and unmarshalled, no matter what?

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• RST packet sent by the server

  - by intoTHEwild

  I am developing a client in Flash and using http req/resp to communicate with the server. For a while the session works fine and then the connection is terminated by the server. I did a wireshark sniff at the server and the last message which it sends is a RST packet. Also it happens only when I'm using IE and the server and client are in different domains. This does not happen in FireFox. I have been struggling to find a sol, till I found this thread. It's a bit old but I hope I could get some help. I am not sure if this bit of info is important but I am connecting to the server via a gateway. Any clue or suggestions for where should I look into to locate the problem ?

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• NSFetchedResultsController doesn't fetch up the child-parent moc chain?

  - by Kronusdark

  I cannot find any clarification on this, so it may be a bug. Problem is, I have a series of parent-child Managed Object Context's. When I save on a child context the changes get pushed up to the parent, and I can fetch using a plain old NSFetchRequest. However, if I rely on an NSFetchedResultsController to pull these changes into a sibling context to the first, they do not see them. calling -(void)performFetch: error; doesn't seem to pull the changes either. After a restart of the app, all new data is available. My hypothesis is that NSFetchedResultsController only fetches from its current context and will not follow the chain to the persistent store. Can someone please set me straight here? Am I going to have to use notifications to monitor changes on other contexts? and finally, is this mentioned somewhere in the doc's? I cannot find it for the life of me.

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• Rails Mikel Mail Gem How to use Views

  - by Victor Martins

  I'm trying to use mikel gem mail on my 2.3.5 Rails App http://github.com/mikel/mail I have it working like this. I've made a MailComHelper, made a method like this : def self.welcome(user,password) @user = user m = Mail.new m.from = '[email protected]' m.to = @user.email m.subject = 'welcome' m.body = 'The body' m.delivery_method :sendmail m.deliver! end And it works, I receive the mail. But I wish I could use the old way of calling a view ( html.erb ) file and send that code has the body. I've read the documentation but haven't found a way to do it. Has anyone found a way to do it?

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• How much did it cost our competitor to DDoS us at 50 Gbps for two weeks?

  - by MiniQuark

  I know that this question may sound like an invalid serverfault question, but I believe that it's quite valid: the amount of time and effort that a sysadmin should spend on DDoS protection is a direct function of typical DDoS prices. Let me rephrase this: protecting a web site against small attacks is one thing, but resisting 50 Gbps of UDP flood is another and requires time & money. Deciding whether or not to spend that time & money depends on whether such an attack is likely or not, and this in turn depends on how cheap and simple such an attack is for the attacker. So here's the full story: our company has been victim to a massive DDoS attack (over 50 Gbps of UDP traffic, full-time during 2 weeks). We are pretty sure that it's one of our competitors, and we actually know which one, because we were the only two remaining competitors on a very big request for proposal, and the DDoS attack magically stopped the day we won (double hurray, by the way)! These people have proved in the past that they are very dishonest, but we know that they are not technical at all, so we believe that they simply paid for some botnet DDoS service. I would like to know how much these services typically cost, for such a large scale attack. Please do not give any link to such services, I would really hate to give these people any publicity. I understand that a hacker could very well do this for free, but what's a typical price for such an attack if our competitors paid for it through some kind of botnet service? It is really starting to scare me (if we're talking thousands of dollars here, then I am really going to freak off: who knows, they might just hire a hit-man one day?). Of course we filed a complaint, but the police says that they cannot do much about it (DDoS attacks are virtually untraceable, so they say), and our suspicions are not enough to justify them raiding our competitor's offices to search for proofs. For your information, we now changed our infrastructure to be able to sustain such attacks: we now use a major CDN service so that our servers are not directly affected by DDoS attacks. Requests for dynamic pages do get proxied to our servers, but for low level attacks (UDP flood, or Syn floods, for example) we only receive legitimate trafic, so we're fine. If they decide to launch higher level attacks (HTTP flood or slowloris attacks for example), most of the load should be handled by the CDN... at least I hope so! Thank you very much for your help.

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• What's the best way to offer javascript embed that won't slow a page down?

  - by Shpigford

  I have a chunk of javascript that users can copy and paste to put on their sites. I'm currently using the following code (ala WEDJE) that allows the rest of the page to load even if my script is slow or not responding. <script type="text/javascript"> var number = "987654321"; var key = "123abc"; (function(){ document.write('<div id="ttp"></div>'); s=document.createElement('script'); s.type="text/javascript"; s.src="http://example.com/javascripts/embed.js?" + Math.random(); setTimeout("document.getElementById('ttp').appendChild(s);",1); })() </script> But that method is a few years old and so I wasn't sure if there was a more efficient way of doing the same thing that others have come up with.

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• What are the reasons to use SQL Server instead of MySQL with a complex .Net project?

  - by cdeszaq

  We currently have a 10 year old nasty, spaghetti-code-style SQL Server database that we are soon looking to pretty much re-write from scratch as part of a re-write to a large web application. (The existing application will serve as the functional requirements for the next incarnation of the app) The new version will be developed in .Net, so a large portion of the application stack will be based on Microsoft technologies (Visual Studio will be used IIS will be the application server). One of the developers on the project has raised the possibility of switching to MySQL instead of SQL Server in order to save on cost for both the licence of the DB server, as well as the tools to design and manipulate the DB (such as the wonderfully free MySQL Workbench). What are the various pros and cons of using SQL Server vs. MySQL as the database for a complex .Net project? Price is one factor we have identified, both in terms of the DB server licence as well as tools to manipulate the DB, but what other factors come into play?

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• How to make scipy.interpolate give a an extrapolated result beyond the input range?

  - by Salim Fadhley

  I'm trying to port a program which uses a hand-rolled interpolator (developed by a mathematitian colleage) over to use the interpolators provided by scipy. I'd like to use or wrap the scipy interpolator so that it has as close as possible behavior to the old interpolator. A key difference between the two functions is that in our original interpolator - if the input value is above or below the input range, our original interpolator will extrapolate the result. If you try this with the scipy interpolator it raises a ValueError. Consider this program as an example: import numpy as np from scipy import interpolate x = np.arange(0,10) y = np.exp(-x/3.0) f = interpolate.interp1d(x, y) print f(9) print f(11) # Causes ValueError, because it's greater than max(x) Is there a sensible way to make it so that instead of crashing, the final line will simply do a linear extrapolate, continuing the gradients defined by the first and last two pouints to infinity. Note, that in the real software I'm not actually using the exp function - that's here for illustration only!

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• XCode File Browsing doesn't open files!

  - by user288024

  Previously when I browsed source code files using Xcode's file browser (located on left side), clicking on a source file would open it in the right window. I must've accidentally changed some setting that stops this behavior -- now single clicking on any file doesn't do anything at all. I'd really like it to go back to the old behavior of opening the file. Any ideas? This behavior is driving me crazy. To open a source file I have to double-click and open in a separate window.

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• Is is better to store serialized data or raw html in mysql?

  - by Yegor

  I de-normalized my database, since the application was crawling otherwise, and Im storing a list of categories for each item in the DB as a raw html version, and simply echoing it out in my design. Each category is actually a link, which is include a tag. Naturally, this is abit of a pain, especially if I want to change the look of how the category links are displayed, since I gotta update all the old cached entries. What if I were to store this data as a serialized array instead, and simply unserialize it, and then apply formatting to it in php. Would there be a significant performance decrease over simply echoing out the raw html?

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• Why isn't DBIx::Class::Schema::Loader creating my classes?

  - by Robert Wohlfarth

  I am trying to generate static schemas using DBIx::Class in Perl. The command shown below outputs a Schema.pm and no other files. Any idea what I'm doing wrong, or how to to debug this? U:\wohlfarj\Software\PARS>perl -MDBIx::Class::Schema::Loader=make_schema_at,dump_to_dir:.\lib -e "make_schema_at('PARS::Schema',{debug=>1},['dbi:ODBC:PARS','user','password',{AutoCommit=>0}])" Dumping manual schema for PARS::Schema to directory .\lib ... Schema dump completed. I'm using Strawberry Perl on Windows XP. The database is SQL Server 2000, accessed through an ODBC connection. I can successfully run queries using plain old DBI with the same ODBC connection.

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• Map a domain to an MVC area

  - by Simon_Weaver

  Anybody got any experience in mapping a domain to an MVC area? Here's our situation: Old system (still active but will soon redirect to new store): www.example.com - our main site where we send traffic store.example.com - our store site which is a completely separate site that is indexed in google New system: www.example.com - same site as before www.example.com/store - new store site - built in an ASP.NET MVC area Because store is a separate domain google gives it a separate entry in the search results. I'd like to keep this benefit in future but wondering whether or not there is a good way to map a domain (store.example.com) to the MVC area or if its just going to be more trouble than its worth. PS. I'm not trying to keep existing indexing - its a completely separate store so thats not possible. I just want to redirect to the corresponding page in the new store. I'm just trying not to lose the benefit of two domains for SEO purposes.

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• when i download file from my website which contains grid and in one of the column of grid there is d

  - by SmartDev

  Hi, I have page called filedownload.aspx , it contains grid and in grid they are three columns and in one of the column there is button which says Download , when user clicks on that button it picks file id and gives the download box to user with three options Open save and cancel . Now the problem is that when user clicks on the download button in grid it gives this ERROR: INTERNET EXPLORER CANNOT DOWNLOAD FILEDOWNLOAD.ASPX FROM ABC.XYZ.COM (MY URL EXAMPLE) INTERNET EXPLORER WAS NOT ABLE TO OPEN THIS SITE .THE REQUEST SITE IS EITHER UNAVAILABLE OR CANNOT BE FOUND . ONE MORE THING IS THT RECENTLY WE IMPLEMENTED SSL AND FROM HTTP WE MOVE TO HTTPS WITH NAME CHANGE IN URL ALSO BFEORE IT WAS AND NOW ITS . NOW WHEN I CHANGE THE URL TO OLD ONE THE PAGE IS WORKING FINE . CAN ANYONE HELP ME ON THIS ? THANKS, SMARTDEV

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• css cache google chrome

  - by Daniel Garcia

  I'm having problems with cache, I think. I have a website in Joomla, and I have some .css (layout.css, position.css, .... ) and I have at home of the website, 3 buttons, I tested in localhost, and when I see the home well, I upload everything to production, to my server. Now, I just edited some styles of these buttons, for example, the width, in order to see them better...but I'm having a problem with the cache, because sometimes I see them with new changes, but other times I see with the old styles.....I realized that this happens especially with chrome Could you help me, please? Best regards, Daniel

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• ideas for android application update

  - by rantravee

  Hi, I'm planning to use my website to provide updates for my android application whenever the user decides to perform an update( in case there is one available) . I'm thinking to use http requests for the communication between the user and the server, so whenever there is a new update the server sents back to the user the link to download the apk of the update through the android browser. So far I think it should work !?!. But once I have the apk of the new update on the card ,and the installed old version of the application how do I actually perform the update ?

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• What is the modern eqivalent (C++) style for the older (C-like) fscanf method?

  - by Chris_45

  What is the best option if I want to "upgrade" old C-code to newer C++ when reading a file with a semicolon delimiter: /* reading in from file C-like: */ fscanf(tFile, "%d", &mypost.nr); /*delimiter ; */ fscanf(tFile, " ;%[^;];", mypost.aftername);/* delimiter ; */ fscanf(tFile, " %[^;]", mypost.forename); /*delimiter ; */ fscanf(tFile, " ;%[^;];", mypost.dept);/*delimiter ; */ fscanf(tFile, " %[^;];", mypost.position);/* delimiter ; */ fscanf(tFile, "%d", &mypost.nr2); //eqivalent best C++ method achieving the same thing?

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