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• Embedded Prolog Interpreter/Compiler for Java

  - by Sami

  I'm working on an application in Java, that needs to do some complex logic rule deductions as part of its functionality. I'd like to code my logic deductions in Prolog or some other logic/constraint programming language, instead of Java, as I believe the resulting code will be significantly simpler and more maintainable. I Googled for embedded Java implementations on Prolog, and found number of them, each with very little documentation. My (modest) selection criteria are: should be embeddable in Java (e.g. can be bundled up with my java package instead of requiring any native installations on external programs) simple interface to use from Java (for initiating deductions, inspecting results, and adding rules) come with at least a few examples on how to use it doesn't necessarely have to be Prolog, but other logic/constraint programming languages with the above criteria would suit my needs, too. What choices do I have and what are their advantages and disadvantages?

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• Getting started with Windows Azure

  - by jonhobbs

  Hi All, I'm going to sound like a complete newbie here but here goes... I've just signed up for a Windows Azure account and was hoping to get a simple hello world aspx page up and running in a browser to see how it all works but I can't seem to find a simple guide to getting a very simple web application running. I've got as far as setting up a "service" and going onto the "deploy" page but it's asking me upload an "application package". I've looked on MSDN but there aren't any simple guides, just reams of documentation talking about "roles" and "development fabric". For somebody that is proficient in HTML/CSS and knows a little abit about asp.net it may just as well be in another language. So, does anybody know how to upload a simple aspx page and then access it in a browser? Jon

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• TMS320C64x Quick start reference for porgrammers

  - by osgx

  Hello Is thare any quickstart guide for programmers for writing DSP-accelerated appliations for TMS320C64x? I have a program with custom algorythm (not the fft, or usial filtering) and I want to accelerate it using multi-DSP coprocessor. So, how should I modify source to move computation from main CPU to DSPs? What limitations are there for DSP-running code? I have some experience with CUDA. In CUDA I should mark every function as being host, device, or entry point for device (kernel). There are also functions to start kernels and to upload/download data to/from GPU. There are also some limitations, for device code, described in CUDA Reference manual. I hope, there is an similar interface and a documentation for DSP.

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• Plot data line in Scatter Report SSRS 2005?

  - by Robert A Dennyson

  Hai, How to add plot data line in scatter report...Please help me to acheive this...! Thanks in advance, Robert A Dennyson

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• Problems upgrading MySQL application from Delphi 2006 to 2010

  - by WombaT

  I upgraded my Delphi to 2010 version and I tried to open and run application written in Delphi 2006. The app is using mysql by dbexpress with libmysql.dll and a second driver found somewhere on the Internet. I can't run it on 2010. I'm always getting "missing libmysql.dll library". I tried to get new version of it but it didn't help. Copying this library into almost all system directories didn't help. I'm out of any ideas what to do, how do I connect to database :(

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• QObject cloning

  - by Olorin

  I know that Qobjects are supposed to be identities not values eg you cannot copy them and by default the copy constructor and asignment are disabled as explained in qt documentation. But is it possible to create a new Qobject from an existing one using a clone method? Would this be a logic error ? If i say QObject b; QObject a; b.cloneFrom(a); or QObject a = new QBject(); QObject b = new QBject(); b->cloneFrom(a); and the clone method copyes stuff like members etc would this be wrong? And if this is ok can i write my own copy constructor and asignment operator that does just that? Note: i actually want to try this with classes that inherit qobject.

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• algorithm for python itertools.permutations

  - by zaharpopov

  Can someone please explain algorithm for itertools.permutations routine in Python standard lib 2.6? I see its code in the documentation but don't undestand why it work? Thanks Code is: def permutations(iterable, r=None): # permutations('ABCD', 2) --> AB AC AD BA BC BD CA CB CD DA DB DC # permutations(range(3)) --> 012 021 102 120 201 210 pool = tuple(iterable) n = len(pool) r = n if r is None else r if r > n: return indices = range(n) cycles = range(n, n-r, -1) yield tuple(pool[i] for i in indices[:r]) while n: for i in reversed(range(r)): cycles[i] -= 1 if cycles[i] == 0: indices[i:] = indices[i+1:] + indices[i:i+1] cycles[i] = n - i else: j = cycles[i] indices[i], indices[-j] = indices[-j], indices[i] yield tuple(pool[i] for i in indices[:r]) break else: return

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• perl Getopt::Long madness

  - by ennuikiller

  The following code works in one script yet in another only works if a specify the "--" end of options flag before specifying an option: my $opt; GetOptions( 'help|h' => sub { usage("you want help?? hahaha, hopefully your not serious!!"); }, 'file|f=s' => \$opt->{FILE}, 'report|r' => \$opt->{REPORT}, ) or usage("Bad Options"); In other words, the same code words in good.pl and bad.pl like so: good.pl -f bad.pl -- -f If I try bad.pl -f I get "unknown option:f" Anyone have any clue as to what can cause this behavior? Thanks in advnace!

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• Debugging in Maven?

  - by aduric

  Is it possible to launch a debugger such as jdb from maven? I have a pom.xml file that compiles the project successfully. However, the program hangs somewhere and I would really like to launch jdb or an equivalent debugger to see what's happening. I compile using mvn compile and launch using: mvn exec:java -Dexec.mainClass="com.mycompany.app.App" I was expecting something like: mvn exec:jdb -Dexec.mainClass="com.mycompany.app.App" to launch the debugger but, as usual, my expectations are incongruent with maven's philosophy. Also, I couldn't find any documentation (on Maven's website or google) to describe how debugging works. I suspect that I have to use some plugin.

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• jquery validation of comtrols

  - by Vinodtiru

  Hi , I am looking at validation of some text boxes for somethings like required, minlength, max length, email etc... I am able to get examples that work fine on submit button on page. I want to do this validation on a button click which will only raise a ajax request and not submit of page. On internet all the sample is found was with submit button. Is there a easy way to change this code a little bit o make it work for non submit button click or any new jquery or java plugin to do the same. I am using the jquery.validation.js for now. This works with submit buttons. Any kind of help with suggestion or help is appreciated. Thanks in advance.

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• Extracting and Parsing data with soapUI

  - by James G

  Hi. So I am in need to learn how to use soapUI pretty quick. I'm finding it pretty tedious to start so I was hoping I might be able to get some help here. Here's what I need to do. Lets say we have Company A and Company B which is a subset of Company B. Now Company A offers a webservice accessible by Company B such that Company B can gather daily aggregated data from Company A's database. Now Company B wants to take this data and publish it on their website. What I'd like is a very basic overview of what I need to do to extract and parse the data onto a website. Just the outline of the process so I can get started. What languages should I be using at what stages and what not. Any help would be highly appreciated.

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• socket programming in objective c [closed]

  - by greshi

  will you plz help me to perform socket programming in objective c..

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• How do I setup FitNesse for use with .NET?

  - by Fredrik

  I'm trying to get started with FitNesse for .NET on Windows Vista. In all tutorials I find on the web I'm told to execute the run.bat file, but all i get when downloading the latest release is a .jar-file. When i run this, the filestructure is unpacked and I can reach the fitnesse server by browsing to http://localhost. Now, when I'm trying to set up a test project, according to all documentation I find I'm supposed define the path to fitsharp.dll but I can't find this file anywhere in the filestructure that was set up from the .jar-file. What am I doing wrong? Sincerely, Fredrik

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• What is the worst C#/.NET gotcha?

  - by MusiGenesis

  This question is similar to this one, but focused on C# and .NET. I was recently working with a DateTime object, and wrote something like this: DateTime dt = DateTime.Now; dt.AddDays(1); return dt; // still today's date! WTF? The intellisense documentation for AddDays says it adds a day to the date, which it doesn't - it actually returns a date with a day added to it, so you have to write it like: DateTime dt = DateTime.Now; dt = dt.AddDays(1); return dt; // tomorrow's date This one has bitten me a number of times before, so I thought it would be useful to catalog the worst C# gotchas.

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• Changing postgres user password in a master-slave setup

  - by NRS

  We have PITR setup and WAL shipping enabled. We would like to change the password for the user postgres. The process is simple enough. However, since we cannot connect to the SLAVE how would we make sure all passwords are in synch? Would temporarily disabling WAL shipping allow me to connect to the slave to change the password there? I cant seem to find documentation on a clean way to implement this password change and I don't have a test environment.

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• Ruby on Rails 2.3.5: update_all failing on ActiveRecord

  - by randombits

  I'm trying to update a collection of records in my database using ActiveRecord's update_all. Enter script/console. MyModel.update_all("reserved = 1", :order => 'rand()', :limit => 1000) ActiveRecord thinks order is a column, says it's unknown and throws an exception. According to the documentation though, my syntax looks sane. This is RoR 2.3.5. When doing MyModel.update_all("reserved = 1") alone, it works just fine. Also if I do MyModel.update_all("reserved = 1", "reserve_type = 2", :order = "rand()", :limit = 1000) = 0 0 rows affected. I'm simply trying to do: UPDATE MyModel SET reserved=1, reserve_type=2 ORDER BY RAND() LIMIT 1000

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• Review Board workflow for Mercurial repository

  - by pachanga

  At my company we are trying to add code reviewing practices into our development process and for that purpose we decided to use Review Board. While Review Board should work out of the box for Subversion the workflow for Mercurial looks a little bit involved. Firstly it seems that only post reviewing(via post-review script) is supported for this type of repo. Secondly documentation is unclear whether post-review actually supports Mercurial(it only mentions git). Could you folks describe your workflow in detail please? Am I right in my thinking it should be something like this: Developer: clone master repo clone feature repo from local master repo hack-hack in feature repo commit into feature repo somehow run post-review from feature repo against parent master repo Reviewer: review diff if OK then pull to the master repo from the feature repo

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• How to decode Google spreadsheet's Json respose as a Php Array

  - by Mohammad

  My google Docs Spreadsheet call returns this response in the json format (I only need everything after "rows") please look at the formatted response here : ) I use php's json_decode function to parse the data and use it (Yes, I am awful at php) This code returns NULL, and according to the documentation, NULL is returned "if the json cannot be decoded". $json = file_get_contents($jsonurl); $json_output = json_decode($json); var_dump ($json_output); // Returns NULL Basically, what i want to accomplish is to make a simple array from the first row values of the Json response. like this $array = {'john','John Handcock','[email protected]','2929292','blanc'} You guys are genius, I would appreciate your insight and help on this very much! Answer as "sberry2A" mentions bellow, the response is not valid Json, google offers the Zend Json library for this purpose, tho I decided to parse the tsv-excel version instead :)

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• accessing $_SESSION when using file_get_contents in PHP

  - by hairdresser-101

  I am basic - intermediate developer using php and am a little stumped as to what I have found. I need some help in understanding how to alleviate this issue: I have a page called send.email.php which sends an email - pretty simple stuff - I pass an order id, it creates job request and sends it out. This works fine when used in the context I developed it (Use javascript to make an AJAX call to the URL and pass the order_id as a query parameter) I am now trying to reuse the exact same page in another application however I am calling it using php file_get_contents($base_url.'admin/send.email.php?order_id='.$order_id). When I call the page this way, the $_SESSION array is empty isempty() = 1. Is this because I am initiating a new session using file_get_contents and the values I stored in the $_SESSION on login are not available to me within there? Any help? Thanks

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• Problem reading from the StandarOutput from ftp.exe. Possible System.Diagnostics.Process Framework b

  - by SoMoS

  Hello, I was trying some stuff executing console applications when I found this problem handling the I/O of the ftp.exe command that everybody has into the computer. Just try this code: m_process = New Diagnostics.Process() m_process.StartInfo.FileName = "ftp.exe" m_process.StartInfo.CreateNoWindow = True m_process.StartInfo.RedirectStandardInput = True m_process.StartInfo.RedirectStandardOutput = True m_process.StartInfo.UseShellExecute = False m_process.Start() m_process.StandardInput.AutoFlush = True m_process.StandardInput.WriteLine("help") MsgBox(m_process.StandardOutput.ReadLine()) MsgBox(m_process.StandardOutput.ReadLine()) MsgBox(m_process.StandardOutput.ReadLine()) MsgBox(m_process.StandardOutput.ReadLine()) This should show you the text that ftp sends you when you do that from the command line: Los comandos se pueden abreviar. Comandos: ! delete literal prompt send ? debug ls put status append dir mdelete pwd trace ascii disconnect mdir quit type bell get mget quote user binary glob mkdir recv verbose bye hash mls remotehelp cd help mput rename close lcd open rmdir Instead of that I'm getting the first line and 3 more with garbage, after that the call to ReadLine block like if there was no data available. Any hints about that?

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• Get Contact Profile Information from Office Communicator (OCS) SDK in C#?

  - by Andrew

  Hi, My company uses MS Office Communicator Server (OCS) 2007 R2, and I am accessing with C# with the SDK. If I right click on a contact in OCS, I get the option to 'View Contact Card'. I want access to this via the API! Unfortunately I can find nothing in the SDK documentation to get at this. There is a method called 'ViewProfile' which is unsupported, and I can find nothing out there about it. I could of course go directly to the Active Directory account of the contact, but that would require my machine to connect to the organization via VPN. Since most of us work 'offline' I would prefer not to do this. (The data I need is anyway in OCS!) Thanks in advance, Andrew

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• GUI to include a .prop` file to a VS 2010 project?

  - by jwfearn

  Visual Studio 2010 has no longer uses .vsprops files and instead uses .props files. To include a .vsprops file in a Visual Studio 2008 project, one could right-click the project icon in the Solution Explorer panel, choose Properties, go to the Configuration Properties | General section, and modify the Inherited Project Property Sheets property to contain a list of .vsprops paths. One could also modify the Visual Studio 2008 project file directly. Is there a way in the Visual Studio 2010 GUI to include .props files to a project? The Inherited Project Property Sheets property seems to have been removed. If manual editing of the project file is the only way to include .props files, where can one find documentation on doing it? I'm not talking about adding a .props file to the list of files in the project, I mean how do I tell the project to use a .props file.

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• Sql Server Service Broker Conversation Groups

  - by Brian Hasden

  Can someone explain conversation groups in service broker? Currently, I'm using service broker to send messages from one SQL server to another. On the sending server, I'm trying to correlate the messages so they are processed in serial on the receiving side. Based on the documentation, conversation groups seem to be a perfect fit for this, but on the receiving server, the messages get assigned to a different conversation group from the one I specified when sending the message. I've search around the web and saw that this behavior seems to be intended (http://social.msdn.microsoft.com/forums/en-US/sqlservicebroker/thread/baf48074-6804-43ab-844a-cb28a6dce02b/), but then I'm confused about the usefulness of the syntax from (http://msdn.microsoft.com/en-us/library/ms178624.aspx) WAITFOR( GET CONVERSATION GROUP @conversation_group_id FROM [dbo].[ReceiveQueue] ) If the conversation group doesn't come across with the message from the sender and messages sent with the same conversation group id don't have the same conversation group id on the receive side, what's the point of the code above?

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• Exporting tasks to 'C using DPI

  - by Alphaneo

  I have an verilog based test-bench, interfaced to 'C source using DPI. Now using DPI I am planning to write my whole firmware. To do this I need 3 things Register Read Register Write Interrupt handler As I understand, register reads and writes are tasks that I need to export from the RTL test-bench. And Interrupt handler (I implemented by importing a function from 'C). I checked most the cadence documentation and found no useful hints. I have also registered with cadence users community but it seems that I cannot ask question till they approve my registration. Just in case someone is aware of this, would appreciate their help.

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• IDataServiceMetadataProvider / ResourceType.... what for dynamic types with no CLR type?

  - by TomTom

  Hello, I try to expose a database via ADO RIA for which we have only an ODBC based interface. The "database" is a server and new elements are developped all the time, so I would like the server to check metadata at start (using the odbc schema methods) and then expose what he finds via RIA services.... clients can the nregenerate when they need access to new elements. As such, I dont ahve any CLR types for all the tabled developped. ResourceType tableType = new ResourceType( typeof(object), ResourceTypeKind.EntityType, null, "Martini", table_name, false ); tableType.CanReflectOnInstanceType = false; I can somehow not put in NULl as CLR element type, and entering typeof(object) seems to result in reflection errors when trying to access the properties. Any documentation on how to do that? I dont really want to get into having types... though if I have to, I probably will dynamically generate some via bytecode emit.

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