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How to safely let users run arbitrary Ruby code?

- by igul222

I realize this sounds a little crazy, but I'm working on a project for which I need a server to run user-provided Ruby code and return the result. I'm looking to prevent something like this: system("rm -rf /") eval("something_evil") # etc... I'm sure there must be some reasonably safe way to do this, as it already exists at places like tryruby.org. Any help is greatly appreciated, thanks!

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How to change text color on Macintosh? My code uses TESetText and TEUpdate for drawing.

- by Manoj Awasthi

A naive question - i am a novice on mac programming. How to change text color on Macintosh? My code uses TESetText and TEUpdate for drawing. PS - Mac is really really badly documented.

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WPF How to bind GridView column width in code?

- by peter

I need to bind width property of the GridView column that is created dynamically in code. Since GridViewColumn object has no SetBinding method, how should I do this? Thanks in advance.

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Is it possible to teach emacs to insert XML Code documentation in Csharp-mode?

- by Cheeso

In Visual Studio, editing a C# file, when I type in three slashes in succession, it auto-generates a template for XML code documentation. Can I get emacs to do something similar?

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C++ code which is slower than its C equivalent?

- by user997112

Are there any aspects to the C++ programming language where the code is known to be slower than the equivalent C language? Obviously this would be excluding the OO features like virtual functions and vtable features etc. I am wondering whether, when you are programming in a latency-critical area (and you aren't worried about OO features) whether you could stick with basic C++ or would C be better?

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Is there any library to represent SQL queries as objects in Java code?

- by Pregzt

I was wondering if there is any library that can be used to represent SQL queries as objects in Java. In the code I have plenty of static variables of type java.lang.String that are hand written SQL queries. I would be looking for library having a nice fluent API that allows me to represent the queries as objects rather than strings. Example: Query q = select("DATE", "QUOTE") .from("STOCKMARKET") .where(eq("CORP", "?")) .orderBy("DATE", DESC);

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How to get source code of a Windows executable?

- by Ronnie Chester Lynwood

I've got some old Windows executable files. How can I edit them with Visual Studio 2010? What are the ways to see an exe's source code?

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Code Igniter controller - can't use uri->segment with function index()?

- by John

I'm working with code igniter and for some reason, the url http://mysite.com/account/100 gives me a 404 error. Here's what my controller looks like. class account extends Controller { function account() { parent::Controller(); } function index() { echo $this->uri->segment(2); } Any idea what's wrong?

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Unobtrusive javascript : <script> at the top or the bottom of the html code ?

- by e-satis

I've recently read the Yahoo manifesto Best Practices for Speeding Up Your Web Site. They recommend to put the javascript inclusion at the bottom of the HTML code when we can. But where exactly and when ? Should we put it before closing </html> or after ? And above all, when should we still put it in the <head> section ?

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What does this line of code do? Really strange.

- by Sergio Tapia

What does this C# code mean. First time seeing it. btnOK.Enabled = txtNick.Text.Length > 0 ? true : false;

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possible to have two working sets? 1) data 2) code

- by user338865

In regards to Operating System concepts... Can a process to have two working sets, one that represents data and another that represents code?

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a console code editor with CUA (ctrl-x ctrl-v ...) key bindings (unlike vi)

- by clyfe

I'm searching for a console code editor with CUA key bindings (ctrl-x c v etc.) Right now i'm toying mcedit but i don't really like it. My desired features are: * be fast * CUA key bindings (ctrl-x c v etc.) * toggle show line numbers * find/replace/goto line * bind custom keys to action( ctrl-shift-arrowdown to double the curent line etc.) * nice simple vi-like interface (no pointless menus) * be able to programatically extend it ... etc.

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How to convert a string color to its hex code or RGB value?

- by Abs

Hello all, I am not sure if its possible but I would like to create some sort of function where you pass in a string such as "yellow" or "green" and it returns its hex code or the range of hex codes that greens or yellows fit into. Is this possible in PHP? If not possible, I am willing to try anything else that can do this! Thanks all

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is the code given in description is executable in Windows system?

- by OM The Eternity

is the code given is executable in Windows system? as it seems to be Linux commands echo 'create database foo2' | mysql -uroot mysqldump --skip-triggers -uroot foo | mysql -uroot foo2

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How can I set a breakpoint in referenced code in visual studio?

- by Dabblernl

My main solution is using code from a utiliy class library, that I wrote myself, but is part from an other solution.I want to set a breakpoint in the referenced .dll. How can I do that?

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is it possible, by code, to find which version of the assembly is used?

- by Fredou

I need to know which version of the report viewer control is used on a web server. If I can find it without asking it would be nice. Is there a way, by code, to find out which version of the assembly is used on the server?

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C onefile program printing (on stdout) self complete source code.

- by Svisstack

Hello, I hear 3 years ago problem and apparently have infinity solutions. I want to find one of this infinity set. Problem: Write program (have only one file example "selfsource.c") who printing on stdout self source code and exits. All techniques all alowed. Anyone can help me?

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How can I run ARM code from external memory?

- by samoz

I am using an LPC2132 ARM chip to develop a program. However, my program has grown larger than the space on the chip. How can I connect my chip to some sort of external memory chip to hold additional executable code? Is this possible? If not, what do people normally do when they run out of chip space?

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can anyone give code for voice recorder as an application on android phone?

- by gowtham

i want to develop an application on android phone regarding voice recorder.i have to record a sound for about 30 seconds and then stop and save the recorded sound in gallery.can anyone post the code if you have please?

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Do you do unit tests for non production code?

- by Ikaso

I am interested in the following scenario specifically. Suppose you have team that writes production code and a team that writes automatic tests. The team that writes automatic tests has a dedicated framework intended to write the automatic tests. Should the testing team write unit tests for their framework although the framework is not used in production?

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How to add a piece of code in the same pace in all the files within a folder in Vim?

- by janoChen

I want to add this code: <link rel="stylesheet" type="text/css" href="css/global.css" />  to all the files in a folder right before the </head> tag

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what is the problem of this code ? how to solved it ? (fork)

- by sb2367

what is the problem of this code ? how to solved it ? parent processes goto in my tag or child process ? #include <signal.h> #include <sys/wait.h> main() { for (;;) { if (!fork()) { exit(0); } sleep(1); } }

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Visual Studio 2010's SQL Schema & Data Compare - Can it be accesed from code?

- by RichardJohnn

The other day I tried out VS2010's SQL compare tools and thought they were awesome. I am wondering if there is any way to harness these tools in code written in VS 2010.

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What is the NetBeans keyboard shortcut for code generation for child class constructors?

- by waiwai933

I was coding in NetBeans (PHP) today, and my hand slipped while I was typing a constructor. It must have hit a keyboard shortcut, because a constructor that was designed for a child class appeared on my screen (i.e. it called the parent constructor, so it's not the Insert Code -> Constructor, I don't think). Does anyone know what the shortcut is?

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What does this line of code do? "variable = condition ? true : false"

- by Sergio Tapia

What does this C# code mean? btnOK.Enabled = txtNick.Text.Length > 0 ? true : false;

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