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How do I set up the Clojure classpath in Emacs after installing with ELPA?

- by derefed

I'm trying to add paths to my classpath in the Clojure REPL that I've set up in Emacs using ELPA. Apparently, this isn't the $CLASSPATH environment variable, but rather the swank-clojure-classpath variable that Swank sets up. Because I used ELPA to install Swank, Clojure, etc., there are a ton of .el files that take care of everything instead of my .emacs file. Unfortunately, I can't figure out how to change the classpath now. I've tried using (setq 'swank-clojure-extra-classpaths (list ...)) both before and after the ELPA stuff in my .emacs, and I've tried adding paths directly to swank-clojure-classpath in .emacs, .emacs.d/init.el, and .emacs.d/user/user.el, but nothing works. What I'm ultimately trying to do is to add both the current directory "." and the directory in which I keep my Clojure programs. I'm assuming swank-clojure-classpath is the thing I need to set here. Thanks for your help.

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Linq to SQL gives NotSupportedException when using local variables

- by zwanz0r

It appears to me that it matters whether you use a variable to temporary store an IQueryable or not. See the simplified example below: This works: List<string> jobNames = new List<string> { "ICT" }; var ictPeops = from p in dataContext.Persons where ( from j in dataContext.Jobs where jobNames.Contains(j.Name) select j.ID).Contains(p.JobID) select p; But when I use a variable to temporary store the subquery I get an exception: List<string> jobNames = new List<string> { "ICT" }; var jobs = from j in dataContext.Jobs where jobNames.Contains(j.Name) select j.ID; var ictPeops = from p in dataContext.Persons where jobs.Contains(p.JobID) select p; "System.NotSupportedException: Queries with local collections are not supported" I don't see what the problem is. Isn't this logic that is supposed to work in LINQ?

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How to convert JavaScript dictionary into Python syntax

- by Sputnix

Writing out javascript dictionary from inside of JavaScript- enabled application (such as Adobe) into external .jsx file (or any other .txt file) the context of resulted file dictionary looks like: ({one:"1", two:"2"}) (Please note that each dictionary keys are written as they are the variables name (which is not true). A next step is to read this .jsx file with Python. I need to find a way to convert ({one:"1", two:"2"}) into Python dictionary syntax such as: {'one':"1", 'two':"2"} It has been already suggested that instead of using JavaScript's built-in dict.toSource() it would make more sense to use JSON which would write a dictionary content in similar to Python syntax. But unfortunately using JSON is not an option for me. I need to find a way to convert ({one:"1", two:"2"}) into {'one':"1", 'two':"2"} using Python alone. Any suggestions on how to achieve it? Once again, the problem mostly in dictionary keys syntax which inside of Python look like variable names instead of strings-like dictionary keys names: one vs "one"

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How do I put my return data from an asmx into JSON? I'm having trouble finding decent literature

- by jphenow

I want to return an array of javascript objects from my asp.net asmx file. ie. variable = [ { *value1*: 'value1', *value2*: 'value2', ..., }, { . . } ]; I seem have been having trouble reaching this. I'd put this into code but I've been hacking away at it so much it'd probably do more harm than good in having this answered. Basically I am using a web service to find names as people type the name. I'd use a regular text file or something but its a huge database that's always changing - and don't worry I've indexed the names so searching can be a little snappier - but I would really prefer to stick with this method and just figure out how to get usable JSON back to javascript. I've seen a few that sort of attempt to describe how one would approach this but I honestly think microsofts articles are damn near unreadable. Thanks in advance for assistance.

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How can I split a Perl string only on the last occurrence of the separator?

- by kiruthika

Hi All, my $str="1:2:3:4:5"; my ($a,$b)=split(':',$str,2); In the above code I have used limit as 2 ,so $a will contain 1 and remaining elements will be in $b. Like this I want the last element should be in one variable and the elements prior to the last element should be in another variable. Example $str = "1:2:3:4:5" ; # $a should have "1:2:3:4" and $b should have "5" $str = "2:3:4:5:3:2:5:5:3:2" # $a should have "2:3:4:5:3:2:5:5:3" and $b should have "2"

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C++ 'mutable' keyword

- by Rob

A while ago I came across some code that marked a member variable of a class with the 'mutable' keyword. As far as I can see it simply allows you to modify a variable in a 'const' method: class Foo { private: mutable bool done_; public: void doSomething() const { ...; done_ = true; } }; Is this the only use of this keyword or is there more to it than meets the eye? I have since used this technique in a class, marking a boost::mutex as mutable allowing const functions to lock it for thread-safety reasons, but, to be honest, it feels like a bit of a hack.

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[Flex Beginner question] String and value object

- by James

Hi all, In php we can assign a method name to a variable and then use that variable to call the method. For example: $image_create_func = 'ImageCreateFromGIF'; $newImage = $image_create_func($oldImage); But can we do this in Flex? In flex, I have the string public var key:String = "email" And I also have a value object searchTerm:SearchTermVO which has a public property "email" (searchTerm.email). Now I want to do searchTerm.email by doing something like in php: searchTerm.key but it's not possible. Can anybody help me with this plz? Thank you.

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Wix Bootstrapper - difficulty detecting if software is already installed c++ redistributable, sql server ce 3.5 sp2

- by gdeck

I apologize if this is answered elsewhere. So far (thanks to a post from Rob Mensching), my code will detect .NET 4.0 if it's installed and it'll pass right over it. I'm not able to correctly detect Microsoft Visual C++ 2010 x86 Redistributable OR Microsoft SQL Server Compact 3.5 Service Pack 2. My code is below. I'm learning, so I would appreciate as much constructive criticism as possible.  <util:RegistrySearch Id="NETFRAMEWORK40" Root="HKLM" Key="SOFTWARE\Microsoft\Net Framework Setup\NDP\v4\Full" Value="Install" Variable="NETFRAMEWORK40" Result="value"/>  <util:RegistrySearch Id="SearchForCPP2010X86" Root="HKLM" Key="SOFTWARE\Microsoft\VisualStudio\10.0\VC\VCRedist\x86" Value="Install" Variable="CPP2010Redist" Result="exists"/>  <util:RegistrySearch Id="SearchForSQLSvrCE35SP2" Root="HKLM" Key="SOFTWARE\Microsoft\Microsoft SQL Server Compact Edition\v3.5\ENU" Value="Install" Variable="SQLSvrCE35SP2" Result="exists"/> <Chain>  <PackageGroupRef Id="Net4Full"/>  <PackageGroupRef Id="MSVisCPP2010x86Redist"/>  <PackageGroupRef Id="SQLExpressCE"/> </Chain>  <PackageGroup Id="Net4Full"> <ExePackage Id="Net4Full" Name="Microsoft .NET Framework 4.0 Setup" Cache="no" Compressed="yes" PerMachine="yes" Permanent="yes" Vital="yes" SourceFile="BootstrapperLibrary\dotNetFx40_Full_setup.exe" DetectCondition="NETFRAMEWORK40"/> </PackageGroup>  <PackageGroup Id="MSVisCPP2010x86Redist"> <ExePackage Id="MSVisCPP2010x86Redis" Name="Microsoft Visual C++ 2010 x86 Redistributable " Cache="no" Compressed="yes" PerMachine="yes" Permanent="yes" Vital="yes" SourceFile="BootstrapperLibrary\vcredist_x86.exe" DetectCondition="CPP2010Redist"/> </PackageGroup>  <PackageGroup Id="SQLExpressCE"> <ExePackage Id="SQLExpressCE" Name="Microsoft SQL Server Compact 3.5 Service Pack 2 Setup" Cache="no" Compressed="yes" PerMachine="yes" Permanent="yes" Vital="yes" SourceFile="BootstrapperLibrary\SSCERuntime-ENU.exe"/> </PackageGroup>

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A specific string format with a number and character together represeting a certain item

- by sil3nt

Hello there, I have a string which looks like this "a 3e,6s,1d,3g,22r,7c 3g,5r,9c 19.3", how do I go through it and extract the integers and assign them to its corresponding letter variable?. (i have integer variables d,r,e,g,s and c). The first letter in the string represents a function, "3e,6s,1d,3g,22r,7c" and "3g,5r,9c" are two separate containers . And the last decimal value represents a number which needs to be broken down into those variable numbers. my problem is extracting those integers with the letters after it and assigning them into there corresponding letter. and any number with a negative sign or a space in between the number and the letter is invalid. How on earth do i do this?

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.NET MVC - Storing database result during single page result?

- by ropstah

Fairly simple issue which is solved in PHP by using a static variable. private static $pages; public function Pages() { if($pages == null) { $pages = new PageCollection(); $pages->findAll(); } } Everywhere in my code I use Pages()::someFindFunction() to make sure the results are fetched only once, and I use that same collection. I want the same in my .NET MVC application: use something like: <%=MySite.Pages.findById(1).Title%> In the code below, if I use a private variable, or if I use a public class with shared variables (doesn't matter) they are both persisted during the entire application. I want them to load the same way PHP does, once per request. Now where do I store the .NET equivalent of private static $pages, so that the code below works? //what to do with $pages?? Public Module MySite Public Function Pages() As PageCollection If $pages Is Nothing Then $pages.loadAll() End If Return $pages End Function End Module

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NHibernate: insert multiple items at once

- by Gart

Hello, all! I am learning NHibernate now and I would like to know is it possible to save multiple objects to database in one operation. For example, consider this test code private static void SaveTestBillNamesInSession(ISession session, params string[] names) { var bills = from name in names select new Bill { Name = name, DateRegistered = DateTime.Now, }; foreach (var bill in bills) session.SaveOrUpdate(bill); } This loop here generates many INSERT statements which may be sub-optimal in SQL Server 2008 which allows to include multiple data rows in one INSERT statement. Is it possible to rewrite this code to make use of this functionality - insert all the data in one operation?

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Is there a tool to navigate targets and properties 's definition?

- by Nam Gi VU

I'm working on a bundle of MSBuild script files and many many times I have the need of locating the definition of a called target or a property being used. At the moment, I have to search to the target/property 's name text and view the file containing that text - only then I can read the definition of the target/property I'm looking for. This remind me of the feature of class/variable navigation of Visual Studio: we can choose "Go to definition" or "Find references" when select a class name or a variable. Is there a similar way to work with MSBuild target/property/item? Hope to hear from all of you! Nam.

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J2ME TextField Exception

- by Bob

When I instantiate a textField, I have a number in it that I want to be the default text. The problem is, I can't seem to be able to place that value into the textfield without getting an error. The strange thing about it is that the same TextField is what I use to set the value of the variable containing the number. TextField myTF = new TextField("Number", value, 10, TextField.NUMERIC); When I run this code, I receive an exception stating that value doesn't match the constraints of TextField.NUMERIC. However, when I check the vale of the value of the variable, I get the following output: value = 1234567890 value.length() = 10 The value is set by the same TextField, saved to the phone that I am working on, and when loaded from the phone's settings, throws an exception.

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Problem with "scopes" of variables in try catch blocks in Java

- by devoured elysium

Could anyone explain me why in the last lines, br is not recognized as variable? I've even tried putting br in the try clause, setting it as final, etc. Does this have anything to do with Java not support closures? I am 99% confident similar code would work in C#. private void loadCommands(String fileName) { try { final BufferedReader br = new BufferedReader(new FileReader(fileName)); while (br.ready()) { actionList.add(CommandFactory.GetCommandFromText(this, br.readLine())); } } catch (FileNotFoundException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } finally { if (br != null) br.close(); //<-- This gives error. It doesn't // know the br variable. } } Thanks

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In-memory Database in Excel

- by user329174

Hello, I am looking for a way to import a datatable from Access into an Excel variable and then run queries through this variable to speed up the process. I am trying to migrate from C# .NET where I read a data table from an access database into memory and then used LINQ to query this dataset. It is MUCH faster than how I have it currently coded in VBA where I must make lots of calls to the actual database, which is slow. I have seen the QueryTable mentioned, but it appears that this requires pasting the data into the excel sheet. I would like to keep everything in memory and minimize the interaction between the Excel Sheet and the VBA code as much as possible. I wish we didn't need to use Excel+VBA to do this, but we're kind of stuck with that for now. Thanks for the help!

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Core dump utility for .NET

- by Dave

In my past life as a COBOL mainframe developer I made extensive use of a tool called Abendaid which, in the event of an exception, would give me a complete memory dump including a formatted list of every variable in memory as well as a complete stack trace of the program with the offending statement highlighted. This made pinpointing the cause of an error much simpler and saved a lot of step-through debugging and/or trace statements. Now I've made the transition to C# and .NET web development I find that the information provided by ASP.NET only tells half the story, giving me a stack trace, but not any of the variable or class information. This makes debugging more difficult as you then have to run the process again with the debugger to try and reproduce the error, not easy with intermittent errors or with assemblies that run under the likes of SQL Server or CRM. I've looked around quite a lot for something that does this but I can't find anything obvious. Does anyone have any idea if there is one, or if not, what I'd need to start with in order to write one?

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Difference of two 'uint'

- by vanslly

When you attempt to declare an unsigned variable in C#.NET with a value outside its value range it is flagged as a compiler error, but if you produce a negative value at runtime and assign it to that variable at runtime the value wraps. uint z = -1; // Will not compile uint a = 5; uint b = 6; uint c = a - b; // Will result in uint.MaxValue Is there a good reason why unsigned variables wrap in such a situation instead of throwing an exception? Thanks.

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Rails: How do I unserialize from database?

- by Macint

Hello, I am currently trying to save information for an invoice/bill. On the invoice I want to show what the total price is made up of. The procedures & items, their price and the qty. So in the end I hope to get it to look like this: Consult [date] [total_price] Procedure_name [price] [qty] Procedure_name [price] [qty] Consult [date] [total_price] Procedure_name [price] [qty] etc... All this information is available through the database but i want to save the information as a separate copy. That way if the user changes the price of some procedures the invoice information is still correct. I thought i'd do this by serializing and save the data to a column (consult_data) in the Invoice table. My Model: class Invoice < ActiveRecord::Base ...stuff... serialize :consult_data ... end This is what I get from the form (1 consult and 3 procedures): {"commit"=>"Save draft", "authenticity_token"=>"MZ1OiOCtj/BOu73eVVkolZBWoN8Fy1skHqKgih7Sbzw=", "id"=>"113", "consults"=>[{"consult_date"=>"2010-02-20", "consult_problem"=>"ABC", "procedures"=>[{"name"=>"asdasdasd", "price"=>"2.0", "qty"=>"1"}, {"name"=>"AAAnd another one", "price"=>"45.0", "qty"=>"4"}, {"name"=>"asdasdasd", "price"=>"2.0", "qty"=>"1"}], "consult_id"=>"1"}]} My save action: def add_to_invoice @invoice = @current_practice.invoices.find_by_id(params[:id]) @invoice.consult_data=params[:consults] if @invoice.save render :text => "I think it worked" else render :text => "I don't think it worked'" end end It does save to the database and if I look at the entry in the console I can see that it is all there: consult_data: "--- \n- !map:HashWithIndifferentAccess \n consult_da..." (---The question---) But I can't seam to get back my data. I tried defining a variable to the consult_data attribute and then doing "variable.consult_problem" or "variable[:consult_problem]" (also tried looping) but it only throws no-method-errors back at me. How do I unserialize the data from the database and turn it back into hash that i can use? Thank you very much for any help!

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Find a name in a list if the name is spelt wrong

- by Matt

I've got a list of names which some code checks against to see if the person exists, and if so do some stuff.. My issue is that I want to handle the case of the name being entered incorrectly.. I.e. I have a list of names Bob Frank Tom Tim John If I type in Joohn, I want it to ask me if I meant John. If I type Tm, I get asked if I meant Tim, if I say no, it asks if i meant Tom.. Etc.. Has anyone done something like this before?

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ASP.Net Web Forms LoginStatus Multiple LoginURL - suggestions?

- by TGuimond

Hi Guys, I am developing a multi-lingual website. I am determining the requested language via a querystring variable eg: http://mydomain.com/default.aspx?lang=en I am using two <asp:LoginStatus /> controls in my masterpage. My web.config file is set up like this for forms authentication. <authentication mode="Forms"> <forms loginUrl="~/login.aspx" protection="All" timeout="30" name=".ASPXAUTH" path="/" requireSSL="false" slidingExpiration="true" defaultUrl="default.aspx" cookieless="UseDeviceProfile" enableCrossAppRedirects="false"/> </authentication> Currently when you click on a <asp:LoginStatus /> you will be redirected to my login page and the url will look something like this: http://mydomain.com/login.aspx?ReturnUrl=%2fdefault.aspx%3flang%3den What solutions are available to me so that I can append my lang variable to my login.aspx? depending on which language is currently active?

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C# going nuts when I declare variables with the same name as the ones in a lambda

- by Rubys

I have the following code (generates a quadratic function given the a, b, and c) Func<double, double, double, Func<double, double>> funcGenerator = (a, b, c) => f => f * f * a + b * f + c; Up until now, lovely. But then, if i try to declare a variable named a, b, c or f, visual studio pops a "A local variable named 'f' could not be declared at this scope because it would give a different meaning to 'f' which is used in a child scope." Basically, this fails, and I have no idea why, because a child scope doesn't even make any sense. Func funcGenerator = (a, b, c) = f = f * f * a + b * f + c; var f = 3; // Fails var d = 3; // Fine What's going on here?

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Swift CMutablePointers in factories e.g. NewMusicSequence

- by Gene De Lisa

How do you use C level factory methods in Swift? Let's try using a factory such as NewMusicSequence(). OSStatus status var sequence:MusicSequence status=NewMusicSequence(&sequence) This errors out with "error: variable 'sequence' passed by reference before being initialized". Set sequence to nil, and you get EXC_BAD_INSTRUCTION. You can try being explicit like this: var sp:CMutablePointer<MusicSequence>=nil status=NewMusicSequence(sp) But then you get a bad access exception when you set sp to nil. If you don't set sp, you get an "error: variable 'sp' used before being initialized" Here's the reference.

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Is ruby ||= intelligent?

- by brad

I have a question regarding the ||= statement in ruby and this is of particular interest to me as I'm using it to write to memcache. What I'm wondering is, does ||= check the receiver first to see if it's set before calling that setter, or is it literally an alias to x = x || y This wouldn't really matter in the case of a normal variable but using something like: CACHE[:some_key] ||= "Some String" could possibly do a memcache write which is more expensive than a simple variable set. I couldn't find anything about ||= in the ruby api oddly enough so I haven't been able to answer this myself. Of course I know that: CACHE[:some_key] = "Some String" if CACHE[:some_key].nil? would achieve this, I'm just looking for the most terse syntax.

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SQL Server, Remote Stored Procedure, and DTC Transactions

- by marc

Our organization has a lot of its essential data in a mainframe Adabas database. We have ODBC access to this data and from C# have queried/updated it successfully using ODBC/Natural "stored procedures". What we'd like to be able to do now is to query a mainframe table from within SQL Server 2005 stored procs, dump the results into a table variable, massage it, and join the result with native SQL data as a result set. The execution of the Natural proc from SQL works fine when we're just selecting it; however, when we insert the result into a table variable SQL seems to be starting a distributed transaction that in turn seems to be wreaking havoc with our connections. Given that we're not performing updates, is it possible to turn off this DTC-escalation behavior? Any tips on getting DTC set up properly to talk to DataDirect's (formerly Neon Systems) Shadow ODBC driver?

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JSP Servlets simple question.

- by loddn

What is the simplest way to use a variable in the URL in servlets. Eg. http://somesite.com/MyServlet/[ID]

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