instruction_seed stringlengths 1 35.8k | _source stringclasses 1
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I have an XML document with a DTD, and would love to be able to access the XML model, something like this:
title = Thing.Items[0].Title
Is there a way, in Ruby, to generate this kind of object model based on a DTD? Or am I stuck using REXML?
Thanks!
| stackexchange/codereview |
I'm unsure whether the following code would ensure all conditions given in Comparator's Javadoc.
class TotalOrder<T> implements Comparator<T> {
public boolean compare(T o1, T o2) {
if (o1 == o2 || equal(o1, o2)) return 0;
int h1 = System.identityHashCode(o1);
int h2 = System.identityHashC... | stackexchange/codereview |
I am having trouble integrating two products, one of which is mine and they appear not to be talking. So I want to make sure they are communicating correctly. I had a look around for network monitor and found TCP Spy. This works but only shows 1 side of the conversation at a time (it has to run locally) I would ideally... | stackexchange/codereview |
What are the most user-friendly color combinations for Web 2.0 websites, such as background, button colors, etc.?
| stackexchange/codereview |
I have read about partial methods in the latest C# language specification, so I understand the principles, but I'm wondering how people are actually using them. Is there a particular design pattern that benefits from partial methods?
| stackexchange/codereview |
The company I work for makes hardware that communicates to the computer though a serial port. Third party companies write software that communicates with our hardware.
There are times when I need to diagnose our hardware. However, a third party software app connects to the serial port when Windows starts up, blocking ... | stackexchange/codereview |
I have an XML object (loaded using XMLHTTPRequest's responseXML). I have modified the object (using jQuery) and would like to store it as text in a string.
There is apparently a simple way to do it in Firefox et al:
var xmlString = new XMLSerializer().serializeToString( doc );
(from rosettacode )
But how does one do ... | stackexchange/codereview |
I am trying out the dialog from jquery UI. All the online demos use flora.css.
I can't get the dialog to display correctly with the css file generated by the themeroller application.
Am I missing something? Should these things work out of the box?
Update: Thanks Brock. When I cleaned up my code to make a sample, I real... | stackexchange/codereview |
can anybody recommend some really good resources for how to get Apache authenticating users with Kerberos.
Background reading on Kerberos would also be useful
Thanks
Peter
| stackexchange/codereview |
How do you scan a directory for folders and files in C? It needs to be cross-platform.
| stackexchange/codereview |
I use emacs to edit my xml files (nxml-mode) and the files were generated by machine don't have any pretty formatting of the tags.
I have searched for pretty printing the entire file with indentation and saving it, but wasn't able to find an automatic way.
Is there a way? Or atleast some editor on linux which can do i... | stackexchange/codereview |
I thought that I had the latest CTP of PowerShell 2 but when I try the command:
invoke-expression –computername Server01 –command 'get-process PowerShell'
I get an error message:
A parameter cannot be found that matches parameter name 'computername'.
So the question is: How can I tell which version of PowerShell I have... | stackexchange/codereview |
When writing production-quality VC++ code, is the use of recursion acceptable? Why or why not?
| stackexchange/codereview |
I used the LINQ to SQL designer in Visual Studio to create an object model of a database. Now, I want to add XML comments to each generated property but I can't figure out how to do it without erasing the properties the next time the dbml file is refreshed.
How can this be done?
| stackexchange/codereview |
I'm running a master-slave MySQL binary log replication system (phew!) that, for some data, is not in sync (meaning, the master holds more data than the slave). But the slave stops very frequently on the slightest MySQL error, can this be disabled? (perhaps a my.cnf setting for the replicating slave ignore-replicating-... | stackexchange/codereview |
I am trying to code TDD style in PHP and one of my biggest stumbling blocks (other than lack of a decent IDE) is that I have to make my own hacked together IoC container just to inject all my mock objects properly.
Has anyone used an Ioc container in PHP? All I've been able to find is PHP IOC on the ever-annoying phpc... | stackexchange/codereview |
How can I build a loop in JavaScript?
| stackexchange/codereview |
There is a field in my company's "Contacts" table. In that table, there is an XML type column. The column holds misc data about a particular contact. EG.
<contact>
<refno>123456</refno>
<special>a piece of custom data</special>
</contact>
The tags below contact can be different for each contact, and I must query thes... | stackexchange/codereview |
Imagine we have a program trying to write to a particular file, but failing.
On the Windows platform, what are the possible things which might be causing the file to be un-writable, and what steps could be suggested to an end user/administrator to fix it.
Please include steps which might require administrator permissi... | stackexchange/codereview |
I'd like to pull a stream of PCM samples from a Mac's line-in or built-in mic and do a little live analysis (the exact nature doesn't pertain to this question, but it could be an FFT every so often, or some basic statistics on the sample levels, or what have you).
What's a good fit for this? Writing an AudioUnit that ... | stackexchange/codereview |
Assuming you can't use LINQ for whatever reason, is it a better practice to place your queries in stored procedures, or is it just as good a practice to execute ad hoc queries against the database (say, SQL Server for argument's sake)?
| stackexchange/codereview |
I want to show HTML content inside Flash. Is there some way to do this?
I am talking about full blown HTML (with JavaScript if possible).
| stackexchange/codereview |
I know 'best' is subjective, so according to you, what is the best solution for the following problem:
Given a string of length n (say "abc"), generate all proper subsets of the string. So, for our example, the output would be {}, {a}, {b}, {c}, {ab}, {bc}, {ac}. {abc}.
What do you think?
| stackexchange/codereview |
...instead of using the Atom syndication format?
Atom is a well-defined, general-purpose XML syndication format. RSS is fractured into four different versions. All the major feed readers have supported Atom for as long as I can remember, so why isn't its use more prevalent?
Worst of all are sites that provide feeds in ... | stackexchange/codereview |
I have a console app that needs to display the state of items, but rather than having text scroll by like mad I'd rather see the current status keep showing up on the same lines. For the sake of example:
Running... nn% complete
Buffer size: bbbb bytes
should be the output, where 'nn' is the current percentage compl... | stackexchange/codereview |
We have a couple of mirrored SQL Server databases.
My first problem - the key problem - is to get a notification when the db fails over. I don't need to know because, erm, its mirrored and so it (almost) all carries on working automagically but it would useful to be advised and I'm currently getting failovers when I do... | stackexchange/codereview |
I have a scenario where I need to make a call to a telephone(landline/mobile) or send SMS to a particular set of users only using ASP.NET and C#. The web application is not a mobile application.
How do I go about doing these? What typically would be the hardware requirements? I would be extremely grateful if you could... | stackexchange/codereview |
How can I change the title of the command prompt window every time I execute a dos-based program by double clicking it, in c language. Should I use the Windows API?
| stackexchange/codereview |
I have the following arrays:
$artist = ["the roots", "michael jackson", "billy idol", "more", "and more", "and_YET_MORE"];
$count = [5, 3, 9, 1, 1, 3];
I want to generate a tag cloud that will have artists with a higher number in $count enclosed in h6 tags and the lowest enclosed h1 tags.
| stackexchange/codereview |
How do I make it so mailto: links will be registered with my program?
How would I then handle that event in my program?
Most of the solutions I found from a quick Google search are how to do this manually, but I need to do this automatically for users of my program if they click a button, such as "set as default email ... | stackexchange/codereview |
My company has a number of relatively small Access databases (2-5MB) that control our user assisted design tools. Naturally these databases evolve over time as data bugs are found and fixed and as the schema changes to support new features in the tools. Can anyone recommend a database diff tool to compare both the da... | stackexchange/codereview |
I'm looking for a "safe" eval function, to implement spreadsheet-like calculations (using numpy/scipy).
The functionality to do this (the rexec module) has been removed from Python since 2.3 due to apparently unfixable security problems. There are several third-party hacks out there that purport to do this - the most t... | stackexchange/codereview |
I experience that on several different machines, with plugins, without plugins, with VB.net or c# solutions of many different sizes, closing the solution in VS 2005 generally takes significantly more time than actually building the solution.
This has always been the case for me since I started using Visual Studio 2005,... | stackexchange/codereview |
Sometimes when I'm editing page or control the .designer files stop being updated with the new controls I'm putting on the page. I'm not sure what's causing this to happen, but I'm wondering if there's any way of forcing Visual Studio to regenerate the .designer file. I'm using Visual Studio 2008
EDIT: Sorry I should... | stackexchange/codereview |
I am deploying new versions of java servlets with JRun as the host. I am having difficulty finding good sources for information about JRun and tutorials about how to configure and manage it.
After installing JRun and opening the launcher it can't start the admin server that it creates by default...so obviously I'm runn... | stackexchange/codereview |
I'm receiving "Package Load Failure" error when I open VS 2005 after I installed the latest VisualSVN (v. 1.5.2). Anyone facing this error? Is there any tool out there to help identify which package didn't load and/or help unload a specific package?
| stackexchange/codereview |
I have a web site in asp.net that uses a master page. In this master page I have a multiview control with one view that has all the content for the content pages and one view that has some local content to the master page where I show error messages from all content pages.
In this error view I have a asp.net Label cont... | stackexchange/codereview |
I am particularly interested in Document Libraries, but in terms of general SharePoint lists, can anyone answer the following...?
What is the maximum number of items that a SharePoint list can contain?
What is the maximum number of lists that a single SharePoint server can host?
When the number of items in the list ap... | stackexchange/codereview |
How do I list the symbols being exported from a .so file? If possible, I'd also like to know their source (e.g. if they are pulled in from a static library).
I'm using gcc 4.0.2, if that makes a difference.
| stackexchange/codereview |
I've tried two different methods of reusing code. I have a solution full of just class library projects with generic code that I reuse in almost every project I work on. When I get to work on a new project, I will reuse code from this code library in one of two ways:
I have tried bringing the projects I need from this... | stackexchange/codereview |
I'm having trouble getting a rotary encoder to work properly with AVR micro controllers. The encoder is a mechanical ALPS encoder, and I'm using Atmega168.
Clarification
I have tried using an External Interrupt to listen to the pins, but it seems like it is too slow. When Pin A goes high, the interrupt procedure starts... | stackexchange/codereview |
In Visual Basic, is there a performance difference when using the IIf function instead of the If statement?
| stackexchange/codereview |
Has anybody managed to get the Android Emulator working behind a proxy that requires authentication?
I've tried setting the -http-proxy argument to
http://DOMAIN/USERNAME:PASSWORD@IP:PORT
but am having no success.
I've tried following the docs to no avail. I've also tried the -verbose-proxy setting but this no longer ... | stackexchange/codereview |
I have a development vm which is running sql server as well as some other apps for my stack, and I found that the other apps are performing awfully. After doing some digging, SQL Server was hogging the memory. After a quick web search I discovered that by default, it will consume as much memory as it can in order to ... | stackexchange/codereview |
What is the best way to distribute files to users in remote offices, using BITS with a UNC path or BITS with HTTP? I have a VB.NET project which currently downloads from a HTTP path, but there is added complexity involved (e.g. having a web server).
Or is there a better way to do this? Low bandwith usage is more impor... | stackexchange/codereview |
I'm trying to locate an open source business rules engine that has a decent interface for building the rules.
OR at least one that works well on the .Net platform and has been updated sometime in the past 12 months.
Thanks,
| stackexchange/codereview |
How do you pass $_POST values to a page using cURL?
| stackexchange/codereview |
I want to bring up a file dialog in Java that defaults to the application installation directory.
What's the best way to get that information programmatically?
| stackexchange/codereview |
Are there any tools to effectively compare two XML schema's? I have seen some generic XML diff tools, but I was wondering if there is anything that knows more about schemas.
| stackexchange/codereview |
I am charged with designing a web application that displays very large geographical data. And one of the requirements is that it should be optimized so the PC still on dial-ups common in the suburbs of my country could use it as well.
Now I am permitted to use Flash and/or Silverlight if that will help with the limited... | stackexchange/codereview |
I've been using StructureMap recently and have enjoyed the experience thoroughly. However, I can see how one can easily get carried away with interfacing everything out and end up with classes that take in a boatload of interfaces into their constructors. Even though that really isn't a huge problem when you're using... | stackexchange/codereview |
For some reason I never see this done. Is there a reason why not? For instance I like _blah for private variables, and at least in Windows Forms controls are by default private member variables, but I can't remember ever seeing them named that way. In the case that I am creating/storing control objects in local vari... | stackexchange/codereview |
In my ASP.NET User Control I'm adding some JavaScript to the window.onload event:
if (!Page.ClientScript.IsStartupScriptRegistered(this.GetType(), onloadScriptName))
Page.ClientScript.RegisterStartupScript(this.GetType(), onloadScriptName,
"window.onload = function() {myFunction();};", true);
My pro... | stackexchange/codereview |
We are in the initial planning stages of building out a mobile site for one of our clients. This mobile site will be in addition to the main site that we have already built for them. We've determined that the content is going to be a small subsection of the main site and will target the main audience that is expected... | stackexchange/codereview |
I'm trying to fully understand all of Haskell's concepts.
In what ways are algebraic data types similar to generic types, e.g., in C# and Java? And how are they different? What's so algebraic about them anyway?
I'm familiar with universal algebra and its rings and fields, but I only have a vague idea of how Haskell's ... | stackexchange/codereview |
I've used Trac/Subversion before and really like the integration. My current project is using Mercurial for distributed development and it'd be nice to be able to track issues/bugs and have this be integrated with Mercurial. I realized this could be tricky with the nature of DVCS.
| stackexchange/codereview |
I have two applications written in Java that communicate with each other using XML messages over the network. I'm using a SAX parser at the receiving end to get the data back out of the messages. One of the requirements is to embed binary data in an XML message, but SAX doesn't like this. Does anyone know how to do ... | stackexchange/codereview |
This morning, I was reading Steve Yegge's: When Polymorphism Fails, when I came across a question that a co-worker of his used to ask potential employees when they came for their interview at Amazon.
As an example of polymorphism in
action, let's look at the classic
"eval" interview question, which (as
far as I ... | stackexchange/codereview |
This caught my attention last night.
On the latest ALT.NET Podcast Scott Bellware discusses how as opposed to Ruby, languages like C#, Java et al. are not truly object oriented rather opting for the phrase "class-oriented". They talk about this distinction in very vague terms without going into much detail or discussi... | stackexchange/codereview |
In C#, int and Int32 are the same thing, but I've read a number of times that int is preferred over Int32 with no reason given. Is there a reason, and should I care?
| stackexchange/codereview |
I am using MS Access 2003. I want to run a lot of insert SQL statements in what is called 'Query' in MS Access. Is there any easy(or indeed any way) to do it?
| stackexchange/codereview |
I wish Subversion had a better way of moving tags. The only way that I know to move a tag is to remove the file from the tag and then copy it again. Revision tree browsers don't seem to handle that very well. This also requires keeping the directory structure under the trunk and tag in sync.
Use case: We have thousands... | stackexchange/codereview |
Does anyone have a technique for generating SQL table create (and data insert) commands pragmatically from a CSV (or sheet in a .xls) file?
I've got a third party database system which I'd like to populate with data from a csv file (or sheet in a xls file) but the importer supplied can't create the table structure au... | stackexchange/codereview |
I'd like to make a debug logging function with the same parameters as printf. But one that can be removed by the pre-processor during optimized builds.
For example:
Debug_Print("Warning: value %d > 3!\n", value);
I've looked at variadic macros but those aren't available on all platforms. gcc supports them, msvc does ... | stackexchange/codereview |
The main web application of my company is crying out for a nifty set of libraries to make it in some way maintainable and scalable, and one of my colleagues has suggested CSLA. So I've bought the book but as :
programmers don't read books anymore
I wanted to gauge the SOFlow community's opinion of it.
So here are my ... | stackexchange/codereview |
I have control over the HttpServer but not over the ApplicationServer or the Java Applications sitting there but I need to block direct access to certain pages on those applications. Precisely, I don't want users automating access to forms issuing direct GET/POST HTTP requests to the appropriate servlet.
So, I decided... | stackexchange/codereview |
When is this called? More specifically, I have a control I'm creating - how can I release handles when the window is closed. In normal win32 I'd do it during wm_close - is DestroyHandle the .net equivalent?
I don't want to destroy the window handle myself - my control is listening for events on another object and when... | stackexchange/codereview |
This question is addressed to a degree in this question on LINQ to SQL .dbml best practices, but I am not sure how to add to a question.
One of our applications uses LINQ to SQL and we have currently have one .dbml file for the entire database which is becoming difficult to manage. We are looking at refactoring it a b... | stackexchange/codereview |
I'm looking to use SQL to format a number with commas in the thousands, but no decimal (so can't use Money) - any suggestions?
I'm using SQL Server 2005, but feel free to answer for others as well (like MySQL)
| stackexchange/codereview |
First off, I am using Windows XP. I have multiple hard drives and it looks like something decided to make some folders on the second one ( which is just a data drive, no os ). These folders all have names like "e69f29f1b1f166d3d30b8c9f7156ba" and "bd92c24cc278614082cd88e7a64b". They contain folders named update, who... | stackexchange/codereview |
Came across this error today. Wondering if anyone can tell me what it means:
Cannot sort a row of size 9522, which is greater than the allowable maximum of 8094.
Is that 8094 bytes? Characters? Fields? Is this a problem joining multiple tables that are exceeding some limit?
| stackexchange/codereview |
PHP has a great function called htmlspecialcharacters() where you pass it a string and it replaces all of HTML's special characters with their safe equivalents, it's almost a one stop shop for sanitizing input. Very nice right?
Well is there an equivalent in any of the .NET libraries?
If not, can anyone link to any cod... | stackexchange/codereview |
I'm pretty keen to develop my first Ruby app, as my company has finally blessed its use internally.
In everything I've read about Ruby up to v1.8, there is never anything positive said about performance, but I've found nothing about version 1.9. The last figures I saw about 1.8 had it drastically slower than just about... | stackexchange/codereview |
Back when I was at school, I remember tinkering with a Mac game where you programmed little robots in a sort of pseudo-assembler language which could then battle each other. They could move themselves around the arena, look for opponents in different directions, and fire some sort of weapon. Pretty basic stuff, but I r... | stackexchange/codereview |
I would like to find out safe ways of implementing three dimensional arrays of integers in C++, using pointer arithmetic / dynamic memory allocation, or, alternatively using STL techniques such as vectors.
Essentially I want my integer array dimensions to look like:
[ x ][ y ][ z ]
x and y are in the range 20-6000
z i... | stackexchange/codereview |
We are developing a middleware SDK, both in C++ and Java to be used as a library/DLL by, for example, game developers, animation software developers, Avatar developers to enhance their products.
Having created a typical API using specific calls for specific functions I am considering simplifying the API by using a REST... | stackexchange/codereview |
Does anyone know if you can and how to start off a scheduled Windows task on a Remote Server from within a SQL Server Integration Services (SSIS) package?
| stackexchange/codereview |
I've got a bunch of FoxPro (VFP9) DBF files on my Ubuntu system, is there a library to open these in Python? I only need to read them, and would preferably have access to the memo fields too.
Update: Thanks @cnu, I used Yusdi Santoso's dbf.py and it works nicely. One gotcha: The memo file name extension must be lower... | stackexchange/codereview |
How do I determine the size of my array in C?
That is, the number of elements the array can hold?
| stackexchange/codereview |
I have the need to read the Thunderbird address book on the fly. It is stored in a file format called Mork. Not a pleasant file format to read. I found a 1999 article explaining the file format. I would love to know if someone already has gone through this process and could make the code available. I found mork.pl... | stackexchange/codereview |
Given a list of locations such as
<td>El Cerrito, CA</td>
<td>Corvallis, OR</td>
<td>Morganton, NC</td>
<td>New York, NY</td>
<td>San Diego, CA</td>
What's the easiest way to generate a Google Map with pushpins for each location?
| stackexchange/codereview |
Is it possible to actually make use of placement new in portable code when using it for arrays?
It appears that the pointer you get back from new[] is not always the same as the address you pass in (5.3.4, note 12 in the standard seems to confirm that this is correct), but I don't see how you can allocate a buffer for ... | stackexchange/codereview |
The RoR tutorials posit one model per table for the ORM to work.
My DB schema has some 70 tables divided conceptually into 5 groups of functionality
(eg, any given table lives in one and only one functional group, and relations between tables of different groups are minimised.)
So: should I design a model per conceptu... | stackexchange/codereview |
If you add a image to your browser's DOM, IE6 will not check its cache to see if it already downloaded the image but will, instead, re-retrieve it from the server. I have not found any combination of HTTP response headers (of the ensuing image request) to convince IE6 that it can cache the image: Cache-control, Expir... | stackexchange/codereview |
Need to parse some basic XML (one root element, 3-4 subelements, 1-3 attributes each) from a ksh script (ideally stick to ksh, given the script already exists and it's just trying to read some extra configuration created in XML by another program).
I know I can use sed and do pattern matching, but it's not foolproof gi... | stackexchange/codereview |
What is the dependency inversion principle and why is it important?
| stackexchange/codereview |
I'm not talking about bug tracking software (like Bugzilla or Jira). I'm looking for something that:
Stores test specifications in text format
Combines test specs into test coverage scenarios
Keeps track of the progress through testing scenarios
Links test specs with bug reports stored in Bugzilla
Generates progress ... | stackexchange/codereview |
I have a .NET webforms front end that allows admin users to upload two .xls files for offline processing. As these files will be used for validation (and aggregation) I store these in an image field in a table.
My ultimate goal is to create an SSIS package that will process these files offline. Does anyone know how ... | stackexchange/codereview |
What is the easiest way to compare strings in Python, ignoring case?
Of course one can do (str1.lower() <= str2.lower()), etc., but this created two additional temporary strings (with the obvious alloc/g-c overheads).
I guess I'm looking for an equivalent to C's stricmp().
[Some more context requested, so I'll demonstr... | stackexchange/codereview |
I would like to move a file or folder from one place to another within the same repository without having to use Repo Browser to do it, and without creating two independent add/delete operations. Using Repo Browser works fine except that your code will be hanging in a broken state until you get any supporting changes ... | stackexchange/codereview |
What are some resources for getting started writing a Firefox Addon? Is there an API guide somewhere? Is there a getting started tutorial somewhere? Is there a developer discussion board somewhere?
| stackexchange/codereview |
I've got a JavaScript "object", built this way:
function foo()
{
this.length = 0;
}
foo.prototype.getLength = function()
{
return this.length;
}
...
I know how to emulate namespaces with singleton JavaScript objects, but what is the best way to "namepace" an object such as that above that will intanced?
I k... | stackexchange/codereview |
I'm looking for a way to poll different servers and check that SQL server is up and running. I'm writing my code in C#. I don't particularly care about individual databases, just that SQL server is running and responsive.
Any ideas?
| stackexchange/codereview |
I'm using Intridea's Acts as Readable Rails plugin for a messaging system I'm currently building.
I've defined my message class accordingly:
class Post < ActiveRecord::Base
acts-as-readable
end
And everything seems to be working according to plan, but when trying to make the app show unread messages in my message vi... | stackexchange/codereview |
I have some ASP.NET web services which all share a common helper class they only need to instantiate one instance of per server. It's used for simple translation of data, but does spend some time during start-up loading things from the web.config file, etc. The helper class is 100% thread-safe. Think of it as a simple ... | stackexchange/codereview |
Is it possible to reload a schema file without having to restart mysqld? I am working in just one db in a sea of many and would like to have my changes refreshed without doing a cold-restart.
| stackexchange/codereview |
How do you define your UserControls as being in a namespace below the project namespace, ie. [RootNameSpace].[SubSectionOfProgram].Controls?
Edit due to camainc's answer: I also have a constraint that I have to have all the code in a single project.
Edit to finalise question: As I suspected it isn't possible to do what... | stackexchange/codereview |
I'm using int as an example, but this applies to any value type in .Net
In .Net 1 the following would throw a compiler exception:
int i = SomeFunctionThatReturnsInt();
if( i == null ) //compiler exception here
Now (in .Net 2 or 3.5) that exception has gone.
I know why this is:
int? j = null; //nullable int
if( i == ... | stackexchange/codereview |
When I have two mysql servers that have different jobs (holding different databases) but want to be able to use one of them to slip in when the other one fails, what would you suggest how I keep the data on both of them equal "close to realtime"?
Obviously it's not possible to make a full database dump every x minutes... | stackexchange/codereview |
I've got many, many mp3 files that I would like to merge into a single file. I've used the command line method
copy /b 1.mp3+2.mp3 3.mp3
but it's a pain when there's a lot of them and their namings are inconsistent. The time never seems to come out right either.
| stackexchange/codereview |
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