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• Efficient Trie implementation for unicode strings

  - by U Mad

  I have been looking for an efficient String trie implementation. Mostly I have found code like this: Referential implementation in Java (per wikipedia) I dislike these implementations for mostly two reasons: They support only 256 ASCII characters. I need to cover things like cyrillic. They are extremely memory inefficient. Each node contains an array of 256 references, which is 4096 bytes on a 64 bit machine in Java. Each of these nodes can have up to 256 subnodes with 4096 bytes of references each. So a full Trie for every ASCII 2 character string would require a bit over 1MB. Three character strings? 256MB just for arrays in nodes. And so on. Of course I don't intend to have all of 16 million three character strings in my Trie, so a lot of space is just wasted. Most of these arrays are just null references as their capacity far exceeds the actual number of inserted keys. And if I add unicode, the arrays get even larger (char has 64k values instead of 256 in Java). Is there any hope of making an efficient trie for strings? I have considered a couple of improvements over these types of implementations: Instead of using array of references, I could use an array of primitive integer type, which indexes into an array of references to nodes whose size is close to the number of actual nodes. I could break strings into 4 bit parts which would allow for node arrays of size 16 at the cost of a deeper tree.

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• Visage

  - by Geertjan

  Raj, the Chennai JUG lead, together with others from that JUG, is interested in Visage, the JavaFX script language closely associated with Stephen Chin. He sent me the related lexer and parser and I started by having a look at them in the new version of ANTLRWorks being developed by Sam Harwell (who demonstrated it very effectively during JavaOne): Notice how the lexer and parser are shown in a tree structure, as well as in a cool syntax diagram. Next, I downloaded a bunch of JARs from here, so that packages such as from "com.sun.tools.mjavac" can be used, i.e., these are Visage-specific packages that aren't found anywhere except in the location below: http://code.google.com/p/visage/wiki/GettingStarted It turns out that there's also a Visage NetBeans plugin out there: http://code.google.com/p/visage/source/browse/?repo=netbeans-plugin Rather than recreating everything from scratch, i.e., generating ANTLR Java classes from the lexer and parser, I copied a lot of stuff from the site above and now a file Raj sent me looks as follows, i.e., basic syntax coloring is shown: For anyone wanting to seriously support Visage in NetBeans IDE, I recommend downloading the existing Visage NetBeans plugin above, rather than creating everything yourself from scratch, and then figuring out how to use that code in some way, i.e., add the JARs I pointed to above, and work on its build.xml file, which could be frustrating in the beginning, but there's no point in recreating everything if everything already exists.

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• BizTalk Server 2013 beta on Windows 8 (with Visual Studio 2012, SQL Server 2012 &amp; ESB Toolkit 2.2)

  - by Vishal

  Hello BizTalkers, Finally, Microsoft released the beta version of BizTalk Server 2010 R2 and now its called BizTalk Server 2013. I had tried the BTS 2010 R2 CTP version on Windows Azure VM and particularly I was excited about the RESTful services support and ESB fully integrated into BizTalk. Well didn’t get chance to test it much, Azure & VM running cost associated . Anyways, I was waiting for this announcement and I was so much glad that Microsoft finally released the on premise one.  Check what’s new in the BizTalk Server 2013.  Officially Microsoft says that BizTalk Server 2013 “beta” is not supported on Windows 8 but I was curious to try it out. Below is my installation and configuration experience. Virtual Machine configuration: VM Ware Workstation 9.0. Windows 8 Enterprise x64. SQL Server 2012. Visual Studio 2012 Ultimate. BizTalk Server 2013 beta. Windows 8 Machine name: WIN8 Local Administrator account name: Admin First I installed Windows 8 Enterprise on a VM Ware Workstation 9.0 and updated the OS. Even Windows 8 is the new release so luckily didn’t had much updates to perform. Next Installed Visual Studio 2012 Ultimate which was straightforward installation. Next Installed SQL Server 2012. Select New SQL Server stand-alone installation & followed the steps as shown in the screenshot below.   Once the installation is finished, fire up SQL Server Management Studio and try connecting. Initially when the management studio opened up, I thought why did Visual Studio 2010 open when I tried opening SQL Management studio but well, they made the interface alike VS 2010. Cool, I like it. Next is the real deal, download the BizTalk Server 2013 and unzip to particular folder. Double click the Setup.exe and follow the steps in the screenshots. Install Microsoft BizTalk Server 2013 beta. I selected all the normal artifacts and also all the artifacts under Additional Software's. So far so good. Next Launch BizTalk Server Configuration and I used Basic configuration as shown in screenshot below. Didn’t expect to see this but “wala”. Successful in the first shot. Still I wasn’t sure & something would have gone wrong so fired up the BizTalk Server Administration Console and that too came up just fine. Still was not able to believe so created a simple messaging application:  message in –> message out and that too worked just fine. Finally I was convinced that BizTalk Server 2013 did work on Windows 8. Next step was to install the ESB Toolkit 2.2 which is now integrated with BizTalk Server and does not come as a separate standalone installation file. Again run the BizTalk Setup.exe from the unzipped folder. Install Microsoft ESB Toolkit. Next, unlike ESB Configuration would  not open up by itself so go to “Windows 8 so called Start” (I could not resist to write this) and open the ESB Toolkit Configuration wizard. Below screenshot display the configurations I used. Also you can find them on MSDN here. Finally after the ESB Configuration, I open Admin Console and checked the 2 ESB application deployed. Cool. This concludes my experience about installation and configuration of BizTalk Server 2013 Beta & ESB Toolkit 2.2 on Windows 8. I will try and keep writing about BizTalk Server 2013 and its use with RESTful Services etc. Thanks, Vishal Mody

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• What types of programming contest problems are there?

  - by Alex

  Basically, I want to make a great reference for use with programming contests that would have all of the algorithms that I can put together that I would need during a contest as well as sample useage for the code. I'm planning on making this into a sort of book that I could print off and take with me to competitions. I would like to do this rather than simply bringing other books (such as Algorithms books) because I think that I will learn a lot more by going over all of the algorithms myself as well as I would know exactly what I have in the book, making it more efficient to have and use. So, I've been doing research to determine what types of programming problems and algorithms are common on contests, and the only thing I can really find is this (which I have seen referenced a few times): Hal Burch conducted an analysis over spring break of 1999 and made an amazing discovery: there are only 16 types of programming contest problems! Furthermore, the top several comprise almost 80% of the problems seen at the IOI. Here they are: Dynamic Programming Greedy Complete Search Flood Fill Shortest Path Recursive Search Techniques Minimum Spanning Tree Knapsack Computational Geometry Network Flow Eulerian Path Two-Dimensional Convex Hull BigNums Heuristic Search Approximate Search Ad Hoc Problems The most challenging problems are Combination Problems which involve a loop (combinations, subsets, etc.) around one of the above algorithms - or even a loop of one algorithm with another inside it. These seem extraordinarily tricky to get right, even though conceptually they are ``obvious''. Now that's good and all, but that study was conducted in 1999, which was 13 years ago! One thing I know is that there are no BigNums problems any more (as Java has a BigInteger class, they have stopped making those problems). So, I'm wondering if anyone knows of any more recent studies of the types of problems that may be seen in a programming contest? Or what the most helpful algorithms on contests would be?

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• Why does Eclipse keep crashing and dpkg erroring out?

  - by Sanju Sony Kurian

  I AM GETTING THE ERROR E: Sub-process /usr/bin/dpkg returned an error code (1) WHILE I WAS TRYING TO UPGRADE MY PC. i USE ECLIPSE AND IT KEEPS ON CRASHING... pLEASE HELP I ATTACH THE ERROR sanju@sanju-Dell-System-XPS-L502X:~$ upgrade Reading package lists... Done Building dependency tree Reading state information... Done The following packages have been kept back: aisleriot gir1.2-rb-3.0 gir1.2-totem-1.0 gnome-disk-utility gnome-keyring libgck-1-0 libgcr-3-1 libtotem0 linux-generic linux-headers-generic linux-image-generic rhythmbox rhythmbox-data rhythmbox-mozilla rhythmbox-plugin-cdrecorder rhythmbox-plugin-magnatune rhythmbox-plugin-zeitgeist rhythmbox-plugins seahorse totem totem-common totem-mozilla totem-plugins 0 upgraded, 0 newly installed, 0 to remove and 23 not upgraded. 1 not fully installed or removed. After this operation, 0 B of additional disk space will be used. Do you want to continue [Y/n]? Y Setting up grub-pc (1.99-21ubuntu3.1) ... /var/lib/dpkg/info/grub-pc.config: 35: /etc/default/grub: Syntax error: EOF in backquote substitution dpkg: error processing grub-pc (--configure): subprocess installed post-installation script returned error exit status 2 Errors were encountered while processing: grub-pc E: Sub-process /usr/bin/dpkg returned an error code (1)

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• unable to install postgres for ubuntu

  - by ramya

  I am trying to install postgresql on ubuntu. I tried installing postgresql using apt-get install postgresql Reading package lists... Done Building dependency tree Reading state information... Done The following NEW packages will be installed: postgresql 0 upgraded, 1 newly installed, 0 to remove and 48 not upgraded. Need to get 0B/23.2kB of archives. After this operation, 57.3kB of additional disk space will be used. debconf: delaying package configuration, since apt-utils is not installed Selecting previously deselected package postgresql. (Reading database ... 42866 files and directories currently installed.) Unpacking postgresql (from .../postgresql_8.4.9-0ubuntu0.10.04_all.deb) ... Setting up postgresql (8.4.9-0ubuntu0.10.04) ... But postgresql is not installed properly. I tried purging and reinstalling it .But I am not able to find a solution. Please help we with this. Thanks, Ramya.

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• Compiled code spreadsheet-like cell management? (auto-updating)

  - by proGrammar

  Okay so I am fully aware how spreadsheets manage cells, they build dependency graphs where when one cell changes it tells all the other cells that are dependent on it that it changed. So they can from there update. How they update I think involves either re-evaluating the formulas stored as strings, or re-evaluating the abstract syntax tree which I think is stored differently and might be faster. Something like that. What I'm looking to do is manage a few variables in my code so I don't have to update them in the correct way, which would be a nightmare. But I also want it much faster than spreadsheets. And since I'm not looking for any functionality as great as are in these spreadsheets, I just figured from that thought point that there has to be a way to have a very fast implementation of this functionality. Especially since I don't have to modify cells after compiling unless that would be an option. I'm very new to programming so I have no idea. One example might be to have a code-generator that generates code that does this for me. But I have no clue what the generated code would look like. Specifically, how exactly would variables inform others that they need to update, and what do those variables do to update? I'm looking for any kind of ideas. Programming is not my job but nonetheless I was hoping to have some kind of system like this that would greatly help me with some stuff. Of course I have been programming plenty lately so I can still program. I just don't have the full scope on things. I'm looking for any kind of ideas, thank you very much in advance! Also, please help me with the tags. I know C# and Java mainly and I'm hoping to implement this in either of those languages and I'm hoping this can stay in those tags. Forcing this into some kind of spreadsheet tag wouldn't be accurate.

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• Vector with Constant-Time Remove - still a Vector?

  - by Darrel Hoffman

  One of the drawbacks of most common implementations of the Vector class (or ArrayList, etc. Basically any array-backed expandable list class) is that their remove() operation generally operates in linear time - if you remove an element, you must shift all elements after it one space back to keep the data contiguous. But what if you're using a Vector just to be a list-of-things, where the order of the things is irrelevant? In this case removal can be accomplished in a few simple steps: Swap element to be removed with the last element in the array Reduce size field by 1. (No need to re-allocate the array, as the deleted item is now beyond the size field and thus not "in" the list any more. The next add() will just overwrite it.) (optional) Delete last element to free up its memory. (Not needed in garbage-collected languages.) This is clearly now a constant-time operation, since only performs a single swap regardless of size. The downside is of course that it changes the order of the data, but if you don't care about the order, that's not a problem. Could this still be called a Vector? Or is it something different? It has some things in common with "Set" classes in that the order is irrelevant, but unlike a Set it can store duplicate values. (Also most Set classes I know of are backed by a tree or hash map rather than an array.) It also bears some similarity to Heap classes, although without the log(N) percolate steps since we don't care about the order.

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• CodePlex Daily Summary for Friday, November 30, 2012

  CodePlex Daily Summary for Friday, November 30, 2012Popular ReleasesTFS Branch Permission Removal Event Subscriber: Release 1.0: first release of the Branch Security Inherit Only libraryMagelia WebStore Open-source Ecommerce software: Magelia WebStore 2.2: new UI for the Administration console Bugs fixes and improvement version 2.2.215.3JayData - The cross-platform HTML5 data-management library for JavaScript: JayData 1.2.5: What's new in JayData 1.2.5For detailed release notes check the release notes. Handlebars template engine supportImplement data manager applications with JayData using Handlebars.js for templating. Include JayDataModules/handlebars.js and begin typing the mustaches :) Blogpost: Handlebars templates in JayData Handlebars helpers and model driven commanding in JayData Easy JayStorm cloud data managementManage cloud data using the same syntax and data management concept just like any other data ...nopCommerce. Open source shopping cart (ASP.NET MVC): nopcommerce 2.70: Highlight features & improvements: • Performance optimization. • Search engine optimization. ID-less URLs for products, categories, and manufacturers. • Added ACL support (access control list) on products and categories. • Minify and bundle JavaScript files. • Allow a store owner to decide which billing/shipping address fields are enabled/disabled/required (like it's already done for the registration page). • Moved to MVC 4 (.NET 4.5 is required). • Now Visual Studio 2012 is required to work ...SQL Server Partition Management: Partition Management Release 3.0: Release 3.0 adds support for SQL Server 2012 and is backward compatible with SQL Server 2008 and 2005. The release consists of: • A Readme file • The Executable • The source code (Visual Studio project) Enhancements include: -- Support for Columnstore indexes in SQL Server 2012 -- Ability to create TSQL scripts for staging table and index creation operations -- Full support for global date and time formats, locale independent -- Support for binary partitioning column types -- Fixes to is...NHook - A debugger API: NHook 1.0: x86 debugger Resolve symbol from MS Public server Resolve RVA from executable's image Add breakpoints Assemble / Disassemble target process assembly More information here, you can also check unit tests that are real sample code.PDF Library: PDFLib v2.0: Release notes This new version include many bug fixes and include support for stream objects and cross-reference object streams. New FeatureExtract images from the PDFCommand Line Parser Library: 1.9.3.23 beta: Fixes an issue notified by github user sbambrick about parsing negative numbers.MCEBuddy 2.x: MCEBuddy 2.3.10: Critical Update to 2.3.9: Changelog for 2.3.10 (32bit and 64bit) 1. AsfBin executable missing from build 2. Removed extra references from build to avoid conflict 3. Showanalyzer installation now checked on remote engine machine Changelog for 2.3.9 (32bit and 64bit) 1. Added support for WTV output profile 2. Added support for minimizing MCEBuddy to the system tray 3. Added support for custom archive folder 4. Added support to disable subdirectory monitoring 5. Added support for better TS fil...DotNetNuke® Community Edition CMS: 07.00.00: Major Highlights Fixed issue that caused profiles of deleted users to be available Removed the postback after checkboxes are selected in Page Settings > Taxonomy Implemented the functionality required to edit security role names and social group names Fixed JavaScript error when using a ";" semicolon as a profile property Fixed issue when using DateTime properties in profiles Fixed viewstate error when using Facebook authentication in conjunction with "require valid profile fo...CODE Framework: 4.0.21128.0: See change notes in the documentation section for details on what's new.Microsoft Ajax Minifier: Microsoft Ajax Minifier 4.76: Fixed a typo in ObjectLiteralProperty.IsConstant that caused all object literals to be treated like they were constants, and possibly moved around in the code when they shouldn't be.Kooboo CMS: Kooboo CMS 3.3.0: New features: Dropdown/Radio/Checkbox Lists no longer references the userkey. Instead they refer to the UUID field for input value. You can now delete, export, import content from database in the site settings. Labels can now be imported and exported. You can now set the required password strength and maximum number of incorrect login attempts. Child sites can inherit plugins from its parent sites. The view parameter can be changed through the page_context.current value. Addition of c...Team Foundation Server Administration Tool: 2.2: TFS Administration Tool 2.2 supports the Team Foundation Server 2012 Object Model. Visual Studio 2012 or Team Explorer 2012 must be installed before you can install this tool. You can download and install Team Explorer 2012 from http://aka.ms/TeamExplorer2012. There are no functional changes between the previous release (2.1) and this release.Coding Guidelines for C# 3.0, C# 4.0 and C# 5.0: Coding Guidelines for CSharp 3.0, 4.0 and 5.0: See Change History for a detailed list of modifications.Math.NET Numerics: Math.NET Numerics v2.3.0: Portable Library Build: Adds support for WP8 (.Net 4.0 and higher, SL5, WP8 and .NET for Windows Store apps) New: portable build also for F# extensions (.Net 4.5, SL5 and .NET for Windows Store apps) NuGet: portable builds are now included in the main packages, no more need for special portable packages Linear Algebra: Continued major storage rework, in this release focusing on vectors (previous release was on matrices) Thin QR decomposition (in addition to existing full QR) Static Cr...ExtJS based ASP.NET 2.0 Controls: FineUI v3.2.1: +2012-11-25 v3.2.1 +????????。 -MenuCheckBox?CheckedChanged??????，??????????。 -???????window.IDS??????????????。 -?????（??TabCollection，ControlBaseCollection）???，????????????????。 +Grid??。 -??SelectAllRows??。 -??PageItems??，?????????????，?????、??、?????。 -????grid/gridpageitems.aspx、grid/gridpageitemsrowexpander.aspx、grid/gridpageitems_pagesize.aspx。 -???????????????????。 -??ExpandAllRowExpanders??，?????????????????（grid/gridrowexpanderexpandall2.aspx）。 -??????ExpandRowExpande...VidCoder: 1.4.9 Beta: Updated HandBrake core to SVN 5079. Fixed crashes when encoding DVDs with title gaps.ZXing.Net: ZXing.Net 0.10.0.0: On the way to a release 1.0 the API should be stable now with this version. sync with rev. 2521 of the java version windows phone 8 assemblies improvements and fixesBlackJumboDog: Ver5.7.3: 2012.11.24 Ver5.7.3 (1)SMTP???????、?????????、??????????????????????? (2)?????????、?????????????????????????? (3)DNS???????CNAME????CNAME????????????????? (4)DNS????????????TTL???????? (5)???????????????????????、?????????????????? (6)???????????????????????????????New ProjectsAlpha Solutions Software Engineering Group Project: A Software Engineering Group Project from the University of Northampton.Arduino_Color_Tracker: CMUCAM arduino code for tracking the amount a pixels of the color being tracked.CAudioEndpointVolume: CAudioEndpointVolume for 32 bit and 64 bit Microsoft Office VBACollaborationItem: ?????????????codeplex??,???????????.Commerce Server Contrib Code Generation: A dll and set of T4 templates that help you generate code for interacting with Commerce Server.Commerce Server Contrib Site Templates: A set of site templates and libraries to help you get started with developing sites for Commerce Server.Creation Kit - Script Editor: CKSE is a script editor for Skyrim Papyrus scripts at the moment. Extending to other games is plannned.CSR Fiddle: CSR Fiddle is an App for SharePoint that allows you to "fiddle" with your list and form templates right from the browser.DNN RTL: RTL (Hebrew, Farsi, Arabic etc.) CSS files for Dotnetnuke. CSS files for right to left DNN sites. Dynamic Query: Uses expression tree to dynamically generate Entity Framework query. Also contains tool set for easy integration with asp.net mvc websites.FinalFrontier Autopilot: Autopilot for FinalFrontier MudHorror Encode: ¿pIEnSaS QUe eScRIbiR así eS SoLo PARA ReTrASadOS? Piénsalo dos veces, puede ser que haya un mensaje oculto y tú sólo estés suponiendo demasiado.Interop 2: Microformats for Azure Cloud with OData-InterfaceIT Security Feed Reader: Este es el proyecto de ISec PeruIVO 12_13 A5 Programmeren1 Lessen: Lessen voor de module A5 Programmeren 1 IVO Brugge William SchokkeléLingo: Lingo is a word game developed for Windows Phone 8. It's some sort of word version of Mastermind where you have to guess words in the least amount of guesses.one day one demo: Demos while learning, developing .NET programming skills, e.g. C#, Winform, WPF, WCF, ASP.NET, etc.PDF odd even merger: Merge odd pages with even pages, Useful when you scan a lot of pages from both sides and want to use a feeder ....Print list view button on SharePoint 2010 Ribbon: SP feature with new functionality where you can add "Print Button" on each type of SharePoint lists, even if it is SharePoint Calendar list,Document librariessevengen : 7 segment code calculator and generator: this software helps electrical engineers to calculate codes used in microcontrollers firmwares. SMBC Feebback Module: Bespoke feedback moduleSQL Server Compact Merge Replication Library: This library simplifies the code to do Merge Replication from a SQL Server Compact 3.5 SP2 client, with useful helper methods.Subnetwork Toolkit: The Subnetwork Toolkit is a set of tools to analyze biological subnetworks.uTreeFormat: Umbraco Tree Formatting You can format every documenttype you want by using the alias in the config. Currently only the nodetype 'content' is supported.

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• KVM not installed?

  - by NJRandy

  When I run virt-manager, and click on the icon to create a new virtual machine, I get an error that KVM is not installed or is not loaded. I use Ubuntu GNOME 14.04 All qemu packages are version 2.0.0+dfsg-2ubuntu1 qemu-kvm and many other qemu packages installed... libvirt packages: 1.2.2-0ubuntu13.1 libvirt0 libvirt-bin libvirt-doc python-libvirt virt-manager 0.9.5-1ubuntu3 When I open terminal and enter lsmod | grep kvm I get nothing returned. No lines showing kvm or kvm_amd and no error of any kind. Hardware: Tyan S2877 with dual Opteron 285s I have the latest bios and don't see any setting in there to turn virtualization on or off. when I run sudo apt-get -s install qemu-kvm Here are the results: Reading package lists... Done Building dependency tree Reading state information... Done qemu-kvm is already the newest version. The following packages were automatically installed and are no longer required: kde-l10n-engb libgtk2-gladexml-perl libqt4-test libvncserver0 Use 'apt-get autoremove' to remove them. 0 upgraded, 0 newly installed, 0 to remove and 1 not upgraded. @jobin: the problem was my hardware. I just bought it a few months ago, although obviously used LOL

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• Ray Tracing concers: Efficient Data Structure and Photon Mapping

  - by Grieverheart

  I'm trying to build a simple ray tracer for specific target scenes. An example of such scene can be seen below. I'm concerned as to what accelerating data structure would be most efficient in this case since all objects are touching but on the other hand, the scene is uniform. The objects in my ray tracer are stored as a collection of triangles, thus I also have access to individual triangles. Also, when trying to find the bounding box of the scene, how should infinite planes be handled? Should one instead use the viewing frustum to calculate the bounding box? A few other questions I have are about photon mapping. I've read the original paper by Jensen and many more material. In the compact data structure for the photon they introduce, they store photon power as 4 chars, which from my understanding is 3 chars for color and 1 for flux. But I don't understand how 1 char is enough to store a flux of the order of 1/n, where n is the number of photons (I'm also a bit confused about flux vs power). The other question about photon mapping is, if it would be more efficient in my case to store photons per object (or even per Object's triangle) instead of using a balanced kd-tree. Also, same question about bounding box of the scene but for photon mapping. How should one find a bounding box from the pov of the light when infinite planes are involved?

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• Can't update kernel to 2.6.35.27

  - by Uri Herrera

  When I try to update I get this message, I'm guessing I'm missing something here? Filesystem Type Size Used Avail Use% Mounted on /dev/sdb6 ext4 43G 7.7G 33G 20% / none devtmpfs 1.6G 349k 1.6G 1% /dev none tmpfs 1.6G 5.9M 1.6G 1% /dev/shm none tmpfs 1.6G 218k 1.6G 1% /var/run none tmpfs 1.6G 0 1.6G 0% /var/lock /dev/sdb2 fuseblk 258G 198G 60G 77% /media/Backup /dev/sda1 fuseblk 321G 175G 146G 55% /media/Media /dev/sdb1 ext4 96M 84M 6.7M 93% /boot /dev/sdb7 ext4 175G 81G 86G 49% /home Here's the output: Reading package lists... Done Building dependency tree Reading state information... Done The following packages will be REMOVED: linux-image-2.6.35-22-generic 0 upgraded, 0 newly installed, 1 to remove and 0 not upgraded. 5 not fully installed or removed. After this operation, 107MB disk space will be freed. Do you want to continue [Y/n]? y (Reading database ... 282211 files and directories currently installed.) Removing linux-image-2.6.35-22-generic ... Examining /etc/kernel/postrm.d . run-parts: executing /etc/kernel/postrm.d/initramfs-tools 2.6.35-22-generic /boot/vmlinuz-2.6.35-22-generic run-parts: executing /etc/kernel/postrm.d/zz-update-grub 2.6.35-22-generic /boot/vmlinuz-2.6.35-22-generic /etc/default/grub: 23: Syntax error: newline unexpected run-parts: /etc/kernel/postrm.d/zz-update-grub exited with return code 2 Failed to process /etc/kernel/postrm.d at /var/lib/dpkg/info/linux-image-2.6.35-22- generic.postrm line 328. dpkg: error processing linux-image-2.6.35-22-generic (--remove): subprocess installed post-removal script returned error exit status 1 Errors were encountered while processing: linux-image-2.6.35-22-generic E: Sub-process /usr/bin/dpkg returned an error code (1)

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• 'Xojo' is the only application that I can't install

  - by Gichan

  I can't install xojo. When I click install in the software center it's not progressing. In the terminal it's stuck in : gichan02@gichan02-Latitude-D520:~$ sudo apt-get install xojo [sudo] password for gichan02: Reading package lists... Done Building dependency tree Reading state information... Done The following extra packages will be installed: xojo-bin The following NEW packages will be installed: xojo xojo-bin 0 upgraded, 2 newly installed, 0 to remove and 0 not upgraded. Need to get 209 MB/209 MB of archives. After this operation, 596 MB of additional disk space will be used. Do you want to continue? [Y/n] Y 0% [Working] then after waiting for an hour for progress it says: Failed to fetch https://private-ppa.launchpad.net/commercial-ppa-uploaders/xojo/ubuntu/pool/main/x/xojo/xojo-bin_2013.41-0ubuntu1_i386.deb Could not resolve host: private-ppa.launchpad.net So I added apt repository for 'private-ppa': deb https://ging-giana:[email protected]/commercial-ppa-uploaders/xojo/ubuntu trusty main Then when I try 'apt-get update': GPG error: https://private-ppa.launchpad.net trusty Release: The following signatures were invalid: NODATA 2 Then I noticed something the Software Sources:Other software TAB: Added by software-center; credentials stored in /etc/apt/auth.conf https://private-ppa.launchpad.net/commercial-ppa-uploaders/xojo/ubuntu So i go to the '/etc/apt/auth.conf' ,but It cannot be opened and it is not a keyserver. So i uncheck: Added by software-center; credentials stored in /etc/apt/auth.conf https://private-ppa.launchpad.net/commercial-ppa-uploaders/xojo/ubuntu GPG error was gone. But then again I found myself at the beginning of the problem.STUCK at '0% [Working]'. 'Xojo' is the only application that I can't install.Any explanation why is it like that?

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• How to give my user permission to add/edit files on local apache server? [duplicate]

  - by Logan

  Possible Duplicate: How to make Apache run as current user I'm setting up my local test server again, and I seem to have forgotten how to successfully set up the LAMP server. I have installed LAMP server via tasksel command and I have configured the /var/www directory according to a guide I've found: After the lamp server installation you will need write permissions to the /var/www directory. Follow these steps to configure permissions. Add your user to the www-data group sudo usermod -a -G www-data <your user name> now add the /var/www folder to the www-data group sudo chgrp -R www-data /var/www now give write permissions to the www-data group sudo chmod -R g+w /var/www So logan user is now part of www-data group and the file/folder permissions look like the output below: logan@computer:/var/www$ ls -lart total 172 -rw-r--r-- 1 www-data www-data 1997 Oct 23 2010 wp-links-opml.php -rw-r--r-- 1 www-data www-data 3177 Nov 1 2010 wp-config-sample.php -rw-r--r-- 1 www-data www-data 3700 Jan 8 2012 wp-trackback.php -rw-r--r-- 1 www-data www-data 271 Jan 8 2012 wp-blog-header.php -rw-r--r-- 1 www-data www-data 395 Jan 8 2012 index.php -rw-r--r-- 1 www-data www-data 3522 Apr 10 2012 wp-comments-post.php -rw-r--r-- 1 www-data www-data 19929 May 6 2012 license.txt -rw-r--r-- 1 www-data www-data 18219 Sep 11 08:27 wp-signup.php -rw-r--r-- 1 www-data www-data 2719 Sep 11 16:11 xmlrpc.php -rw-r--r-- 1 www-data www-data 2718 Sep 23 12:57 wp-cron.php -rw-r--r-- 1 www-data www-data 7723 Sep 25 01:26 wp-mail.php -rw-r--r-- 1 www-data www-data 2408 Oct 26 15:40 wp-load.php -rw-r--r-- 1 www-data www-data 4663 Nov 17 10:11 wp-activate.php -rw-r--r-- 1 www-data www-data 9899 Nov 22 04:52 wp-settings.php -rw-r--r-- 1 www-data www-data 9175 Nov 29 19:57 readme.html -rw-r--r-- 1 www-data www-data 29310 Nov 30 08:40 wp-login.php drwxr-xr-x 14 root root 4096 Dec 24 17:41 .. drwx------ 9 www-data www-data 4096 Dec 26 16:11 wp-admin drwx------ 9 www-data www-data 4096 Dec 26 16:11 wp-includes -rw-rw-rw- 1 www-data www-data 3448 Dec 26 16:14 wp-config.php drwxrwxr-x 5 www-data www-data 4096 Dec 26 16:14 . drwx------ 6 www-data www-data 4096 Dec 26 16:19 wp-content Things work perfectly at http://localhost, I can view the website fine. The thing with this is that I will be working on a plugin for wordpress and I don't want to deal with separate owners under www directory to create or modify files/folders. When I give my user the ownership of /var/www recursively as logan:www-data I can create/modify files but cannot view the http://localhost. I get a Forbidden error. I'm assuming that this is because of the Apache's configuration? Which one is healthier or easier considering this is just a local test website, configuring apache to give user logan to view website and chmod /var/www logan:logan so that I can create files etc. without any sudo commands; or is it easier to configure user groups to get www-data user to act like my logan user? (Idk how that's possible, maybe putting www-data user under logan group?) Please shed some light to this subject. All I want is to be able to create/modifiy files under my user, and yet to be able to successfully view http://localhost I appreciate the help!

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• Problem with DirectX scene-graph

  - by Alex

  I'm trying to implement a basic scene graph in DirectX using C++. I am using a left child-right sibling binary tree to do this. I'm having trouble updating each node's world transformation relative to its parent (and its parent's parent etc.). I'm struggling to get it to work recursively, though I can get it to work like this: for(int i = 0; i < NUM_OBJECTS; i++) { // Initialize to identity matrix. D3DXMatrixIdentity(&mObject[i].toWorldXForm); int k = i; while( k != -1 ) { mObject[i].toWorldXForm *= mObject[k].toParentXForm; k = mObject[k].parent; } } toWorldXForm is the object's world transform and toParentXForm is the object's transform relative to the parent. I want to do this using a method within my object class (the code above is in my main class). This is what I've tried but it doesn't work (only works with nodes 1 generation away from the root) if (this->sibling != NULL) this->sibling->update(toParentXForm); D3DXMatrixIdentity(&toWorldXForm); this->toWorldXForm *= this->toParentXForm; this->toWorldXForm *= toParentXForm; toParentXForm *= this->toParentXForm; if (this->child != NULL) this->child->update(toParentXForm); Sorry if I've not been clear, please tell me if there's anything else you need to know. I've no doubt it's merely a silly mistake on my part, hopefully an outside view will be able to spot the problem.

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• Brocken package for libavcodec54 & libx264-123 in ubuntu 14.04LTS

  - by Kachavarapu Ajay

  $ sudo apt-get install -f [sudo] password for ajay: Reading package lists... Done Building dependency tree Reading state information... Done Correcting dependencies... Done The following extra packages will be installed: libx264-123 The following NEW packages will be installed: libx264-123 0 upgraded, 1 newly installed, 0 to remove and 0 not upgraded. 2 not fully installed or removed. Need to get 0 B/345 kB of archives. After this operation, 1,005 kB of additional disk space will be used. Do you want to continue? [Y/n] y (Reading database ... 166965 files and directories currently installed.) Preparing to unpack .../libx264-123_0.123.2189+git35cf912-1ubuntu4_amd64.deb ... Unpacking libx264-123:amd64 (2:0.123.2189+git35cf912-1ubuntu4) ... dpkg-deb (subprocess): decompressing archive member: lzma error: compressed data is corrupt dpkg-deb: error: subprocess <decompress> returned error exit status 2 dpkg: error processing archive /var/cache/apt/archives/libx264-123_0.123.2189+git35cf912-1ubuntu4_amd64.deb (--unpack): cannot copy extracted data for './usr/lib/x86_64-linux-gnu/libx264.so.123' to '/usr/lib/x86_64-linux-gnu/libx264.so.123.dpkg-new': unexpected end of file or stream Errors were encountered while processing: /var/cache/apt/archives/libx264-123_0.123.2189+git35cf912-1ubuntu4_amd64.deb E: Sub-process /usr/bin/dpkg returned an error code (1)

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• What follows after lexical analysis?

  - by madflame991

  I'm working on a toy compiler (for some simple language like PL/0) and I have my lexer up and running. At this point I should start working on building the parse tree, but before I start I was wondering: How much information can one gather from just the string of tokens? Here's what I gathered so far: One can already do syntax highlighting having only the list of tokens. Numbers and operators get coloured accordingly and keywords also. Autoformatting (indenting) should also be possible. How? Specify for each token type how many white spaces or new line characters should follow it. Also when you print tokens modify an alignment variable (when the code printer reads "{" increment the alignment variable by 1, and decrement by 1 for "}". Whenever it starts printing on a new line the code printer will align according to this alignment variable) In languages without nested subroutines one can get a complete list of subroutines and their signature. How? Just read what follows after the "procedure" or "function" keyword until you hit the first ")" (this should work fine in a Pascal language with no nested subroutines) In languages like Pascal you can even determine local variables and their types, as they are declared in a special place (ok, you can't handle initialization as well, but you can parse sequences like: "var a, b, c: integer") Detection of recursive functions may also be possible, or even a graph representation of which subroutine calls who. If one can identify the body of a function then one can also search if there are any mentions of other function's names. Gathering statistics about the code, like number of lines, instructions, subroutines EDIT: I clarified why I think some processes are possible. As I read comments and responses I realise that the answer depends very much on the language that I'm parsing.

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• Drupal 7 Advice Needed: "Portal" Creation

  - by WernerCD

  Question: What is the best game plan for building what I want. I'm rebuilding the company intranet and am trying to get our "Portals" system re-created in Drupal. I'm trying to learn Panels, because thats what I think would do this, but I just can't seem to get it working. Menu at top, drop down lists for various webpages, tools, internal applications... and Department Portals. When you click on a department portal, you get the same menu at top... and on the main part of the page you have a menu on the left, with content on the right. Menu stays on the left, content loads next to it. Each Portal has its own menu and content (least of which is "Home"). Ultimately, I'd like to be able to say - users with role "Foo" can add/edit/delete Portal Bar. - Each Portal starts with a "Home" - Each Portal has its own Menu tree's. (Picture 2 above has a < ul for video tutorials that would be a second level menu. So more than one deep.) - Content on the right side of the portal should be flexible (Video, PDF via fileviewer, etc) - Portal Bar should have its own Folder to contain it's content. I'm trying to do this in Panels, but I can't seem to put the pieces together in my mind and in practice. I hope I'm making sense, because the dizzying array of stuff is killing me lol.

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• How do I re-enable the backlight?

  - by Scott Severance

  Since Oneiric, if I leave my machine (HP Mini 110 netbook) unattended and it goes into power-save mode, the backlight gets disabled. How can I turn it back on? Note that the keyboard backlight controls (Fn+F4 and Fn+F3) don't have any effect in this situation. I've already filed a bug, but filing a bug doesn't fix my problem. I tried this workaround posted in this bug report dealing with Acer laptops: sudo setpci -s 00:02.0 F4.B=0 However, if anything, that command makes things worse. In the general case, I can see a little bit if I'm in a dark room with a flashlight aimed just so. But after running setpci I can't see anything. And I find the setpci documentation to be utterly incomprehensible, so I don't know whether I need to tweak my command somehow or whether I'm completely barking up the wrong tree. Update: I've found a workaround: I'm now booting with the kernel parameter acpi=off. This disables power management, which prevents the machine from going into power saving mode and thus failing to come back up correctly. Of course, not having power management means that I can't use suspend or do anything to manage power other than powering it off (even then, I have to manually use the power switch). Also, it prevents me from using Unity 3D or Gnome Shell, forcing me into Unity 2C or Gnome Classic. So, I'd really like to be able to stop using this hack.

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• CodePlex Daily Summary for Tuesday, May 20, 2014

  CodePlex Daily Summary for Tuesday, May 20, 2014Popular ReleasesEdiFabric: Release 3.1: Fixed parse tree generation for the latest validation schemasCompare .NET Objects: Version 2.03.0.0: Support for System.Drawing.Font type New Option to Ignore Unknown Object TypesQuickMon: Version 3.11: This release adds some major changes to the core monitoring engine. 1. Polling overrides: Each collector entry can specify a minimum time updating is allowed for it and dependent collector entries. 2. Polling frequency sliding: Additional to polling overrides a collector entry can specify 'sliding' polling frequency if the state remains the same. This means the frequency slows down reducing overhead of polling on a stagnant resource. 3. The monitor pack has an overriding frequency. If used...Family Tree Analyzer: Version 3.7.2.3-beta2: Small beta test to determine issue with Lost Cousins facts with census with no country.AST - a tool for exploring windows kernel: Ast-0.2.20140519-win8.1x86: symbol form, supports any symbol query like dt/x command in windbg symbol form, supports loading pdb file pe form, visualizer of pe info (dos/optional header, sections, directories, import/export table)Mini SQL Query: Mini SQL Query (1.0.72.457): Apologies for the previous update! FK issue fixed and also a template data cache issue.Endomondo Export: First Release: This is the first release, it might be buggy, so I'll eventually try to improve it over time. I did it quick and dirty as I didn't have much spare time to develop it, but again it works for me. ;-) If I see people use it and there are reasonable requests I might add more stuff to it. Hope you guys like it!FileTable Services for Lightswitch: FileTable Services for Lightswitch 1.0.0: 19 MAY 2014 v.1.0.0 Initial releaseWordMat: WordMat v. 1.06: Check WordMat.blogspot.com for a complete description of new features.Visual F# Tools: Daily Builds Preview 05-16-2014: This preview is released for use under a proprietary license.Wsus Package Publisher: Release v1.3.1405.17: Add Russian translation (thanks to VSharmanov) Fix a bug that make WPP to crash if the user click on "Connect/Reload" while the Report Tab is loading. Enhance the way WPP store the password for remote computers command.MoreTerra (Terraria World Viewer): More Terra 1.12.9: =========== = Compatibility = =========== Updated to account for new format 1.2.4.1 =========== = Issues = =========== all items have not been added. Some colors for new tiles may be off. I wanted to get this out so people have a usable program.LINQ to Twitter: LINQ to Twitter v3.0.3: Supports .NET 4.5x, Windows Phone 8.x, Windows 8.x, Windows Azure, Xamarin.Android, and Xamarin.iOS. New features include Status/Lookup, Mute APIs, and bug fixes. 100% Twitter API v1.1 coverage, Async, Portable Class Library (PCL).ConEmu - Windows console with tabs: ConEmu 140519 [Alpha]: ConEmu - developer build x86 and x64 versions. Written in C++, no additional packages required. Run "ConEmu.exe" or "ConEmu64.exe". Some useful information you may found: http://superuser.com/questions/tagged/conemu http://code.google.com/p/conemu-maximus5/wiki/ConEmuFAQ http://code.google.com/p/conemu-maximus5/wiki/TableOfContents If you want to use ConEmu in portable mode, just create empty "ConEmu.xml" file near to "ConEmu.exe" CS-Script for Notepad++ (C# intellisense and code execution): Release v1.0.26.0: Added access to the Release Notes during 'Check for Updates...'' Debug panels Added support for generic types members Members are grouped into 'Raw View' and 'Non-Public members' categories Implemented dedicated (array-like) view for Lists and Dictionaries http://download-codeplex.sec.s-msft.com/Download?ProjectName=csscriptnpp&DownloadId=846498ClosedXML - The easy way to OpenXML: ClosedXML 0.70.0: A lot of fixes. See history.SFDL.NET: SFDL.NET (2.2.9.2): Changelog: Neues Icon Xup.in CnL Plugin BugfixSEToolbox: SEToolbox 01.030.008 Release 1: Fixed cube editor failing to apply color to cubes. Added to cube editor, replace cube dialog, and Build Percent dialog. Corrected for hidden asteroid ore, allowing rare ore to show when importing an asteroid, or converting a 3d model to an asteroid (still appears to be limitations on rare ore in small asteroids). Allowed ore selection to Asteroid file import. (Can copy/import and convert existing asteroid to another ore). Added progress bars to common long running operations. Fixed ...Better Robocopy GUI: Command Line GUI for Robocopy: Better Robocopy GUI had become the primary plugin in Command Line GUI built on .NET 4TFS Planning and Disaster Recovery Avoidance Guide: v1.4.BETA - TFS, DR and Azure IaaS Planning Guides: Welcome to the TFS Planning and DR Avoidance Guidance What is new? A new crisper, more compact style, which is easier to consume on multiple devices without sacrificing any content. Also included are the new TFS on Azure IaaS guide and supplementary guides. Note Capacity planning workbook and posters are included in the Everything Zip package. Quality-Bar Detail Documentation has been reviewed by Visual Studio ALM Rangers Documentation has been through an independent technical review ...New ProjectsBizTalk Port Info Query Tool: This tool is capable of retrieving BizTalk send and receive port information, through which can be searched.C5_StyleCopped: The C5 project while an excellent set of collections suffers from being very non StyleCop compliant.Channel 9 RSS Reader (Universal / WinPhone 8): Channel 9 RSS Reader Code Share Sample- A simple RSS reader app for the Channel 9 RSS feed sharing code across 3 apps.CRM Web API Yelp Example: Sample Visual Studio 2013 project that provides an example of how you could use Web API and Microsoft Azure to integrate with Yelp.ERP Accounting System: ERP Accounting SystemEssIL: Essential classes written in CIL.FileTable Services for Lightswitch: Integrates SQL Server 2012 and later FileTable functionality with Lightswitch rapid application development tools. Works with ALL types of Lightswitch clients.freeasyDMS: A free and easy to use DMS for everyone. Without any cloud restrictions. All information about added Documents are stored lokaly at XML files.FreelancerCreateReport: Freelancer_CreateReportInstituto Superior de Ciencias Comerciales: esta es una pruebaMVC Blogger: Under TestingMVC Bootstrap Timepicker: ASP.NET MVC html helper for Bootstrap 3 time picker. This helper makes it easy to use a time picker with the bootstrap look 'n feel in your web site.NextGen: NextGen FrameworkPlato 2D Framework: Plato Windows Runtime App canvas oriented MVVM framework.Promotion Planner Pro: Trade Promotion Management and Analytic suitSharePoint Managed Metadata List Filter: This managed metadata list filter webpart provides the ability to filter multiple list view webparts that contain the same Managed metadata site column on the sSurfwave: A Windows Store (Windows Runtime) library that provides multi-touch tracking and normalized interpretation capabilities.Torrent Description Generator: A simple WPF application to generate a robust torrent description for movies in text or bbcode. Includes file info, thumbs, imdb/RT links and poster.Trang's Project: Qu?n lý thông tin khách hàng trong ho?t d?ng vay v?nWebSniffer: A bot written in C# to play a hangman game and intelligently make decisions about what to pick next.WorldBankBBS: BBS Package designed for use with ASCII, ANSI and PETSCII (Commodore) users. All resources are shared between differing clients. WPF Password Generator with Prism 5 and Moq (2014): This is a WPF reference implementation for developing an MVVM application that uses Prism (5) and Moq.????-????【??】????????: ??????????????,??????????????????,?????????????。?????????,????????????。 ?????-?????【??】?????????: ?????????????????,????,????,?????????.?????,?????!?????,?????????、??、??! ??????-??????【??】??????????: ????????????,???????,??????。??????????,????,????,?????,????????????。 ??????-??????【??】??????????: ???????????????、???????,?????????,???????????????。?????????????,???????。 ??????-??????【??】??????????: ?????????????????,???????????????????????????,????:????,????,????,?????。 ??????-??????【??】??????????: ????????????????,?????????????? ??。??????????、????、????、?????????? ???????。 ??????-??????【??】??????????: ??????????????????,???、???!???????,????????????????,????????????,???! ??????-??????【??】??????????: ???????????????,????,???????、???????????,???????????,????,?????,???????。 ??????-??????【??】??????????: ????????????????????????,?????????,??????????,????????,?????! ??????-??????【??】??????????: ?????????????,????????,??????????????,?????????,????,????,??????。 ??????-??????【??】??????????: ??????????????、?????????,?????????,????,????????,????????????????! ??????-??????【??】??????????: ?????????????:??????、????、????、????、????、??????、??????，???????! ??????-??????【??】??????????: ????????????????、?????,????????????????????,????,????,??????。 ??????-??????【??】??????????: ????????????????，???????、???????????，????????、????、????、??????、????????。 ??????-??????【??】??????????: ???????????????????????????,???????????????????????,???????。 ??????-??????【??】??????????: ???????????????、????、????、??????、????、???????,?????,?????????! ??????-??????【??】??????????: ??????????????????、????、??????、????????,????????????,???????????！ ??????-??????【??】??????????: ????????????????????,?????????????????????,?????,????,???????. ??????-??????【??】??????????: ???????????????、???????,?????????,???????????????,?????????????。 ??????-??????【??】??????????: ????????????、??、???????????,??????,????????,??????????????????...????。 ??????-??????【??】??????????: ????????????????，?????????/?,,???????????,??????????????! ??????-??????【??】??????????: ??????????,????????????????????????,???????????????,?????????????！ ??????-??????【??】??????????: ??????????,????????,?????,???,???????????,???????????,?????,??????！ ??????-??????【??】??????????: ???????????????????????????、??????????????,??????????????。 ??????-??????【??】??????????: ?????????????????"????,????"???,????????????????????????,??????????????。 ??????-??????【??】??????????: ?????????????????,????:????,????,????,??????,?????,???????????????! ??????-??????【??】??????????: ??????????????????????????,???????????,????????,?????????????????????。 ??????-??????【??】??????????: ???????????、????、????、??????、????、????????,????????、?????????,?????。 ??????-??????【??】??????????: ?????????????????,?????????????。????????????,???????,???????,?????,?????。 ??????-??????【??】??????????: ????????????????,?????????、??、??、????,??????????,?????????????！ ??????-??????【??】??????????: ???????????、????、????、??????????,???,?????,???????????????. ??????-??????【??】??????????: ??????????????????????,?????, ... ????????????,????,????,?????,???????。 ??????-??????【??】??????????: ????????????????????????、??????,????、?????、????， ?????????，?????????????！ ??????-??????【??】??????????: ????????,??????,?????????????????????,???????????????????????。 ??????-??????【??】??????????: ?????????????????????、????、????、??????、???????,??????、??????。 ??????-??????【??】??????????: ???????【.????.????.????.????.】??【??】:、??、??、??、??、??、??、??、??、??、??、?????。 ??????-??????【??】??????????: ??????????????????,????,??.??.??.??.??.??.??.???，????，???????! ??????-??????【??】??????????: ????????????????????、????????、????????、????????、???????,????????????。 ??????-??????【??】??????????: ????????????????????,?????,???????,???????????,??????! ??????-??????【??】??????????: ???????????、??????、????、?????、?????!????,????????????????!????。 ??????-??????【??】??????????: ??????,??,????????。 ... ??????????????????、??????????????????... ???????-???????【??】???????????: ???????????????????????????,???????????????,????????????????！ ???????-???????【??】???????????: ???????????????:????,????,????,???????,????????,??????:????????,?????! ???????-???????【??】???????????: ???????,?????????,?????????????。?????????????,?????????,???????。 ??????-??????【??】??????????: ????????????????,???????、???????????,????????,????,?????????,??????,??????! ??????-??????【??】??????????: ?????????????????,????????????,?????????????????,??????,????????! ??????-??????【??】??????????: ??????????????????,???????、????、????、??????、???????,??????,???????????。 ??????-??????【??】??????????: ?????????????,??,??,??,??? ?,??,,??,??,??,??,??,??,????????,??????！ ??????-??????【??】??????????: ????????????????????????????:???????,??????,????,????,????,?????！ ??????-??????【??】??????????: ???????????????????,????,????,????,???????,?????,?????.??????。 ??????-??????【??】??????????: ????????????????????,?????????????,???????????.????????????,????????????! ??????-??????【??】??????????: ??????????????????,??:??????,????,????,????,?????,??????????????. ??????-??????【??】??????????: ?????????????????,???????????????。?????????????,???????,?????????。 ??????-??????【??】??????????: ?????????????,????(??)????????，??????，????，???，????，???????! ??????-??????【??】??????????: ??????????????,?????????????,?????????????,??????,????,????,??????????！ ??????-??????【??】??????????: ????????????????,????????,????:???????,??????,????,????,?????,?????,??????! ??????-??????【??】??????????: ?????????????????????,????,????,??????????。???????????????,??,??,??????????,??????... ??????-??????【??】??????????: ?????????????????,??????????????、???????、???????、???????、?????！ ??????-??????【??】??????????: ???????????,?????????????? ??。????????、????、????、?????????? ???????。 ??????-??????【??】??????????: ????????????、?????、?????、?????、?????、????,???????????,?????,??????！ ??????-??????【??】??????????: ?????????????、?????、?????、????、?????,??????????。????????????????! ??????-??????【??】??????????: ??????????????????,????????????,?????、??、????,?????,??????！ ??????-??????【??】??????????: ?????????????????,???????????????。???????????,??????:????、????、???????！ ??????-??????【??】??????????: ??????????????,?????????????,????,?????????,?????????????,?????,?????! ??????-??????【??】??????????: ??????????????????,???????????,??????????????,??????????，??????????????！

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• Ubuntu 12.04 upgrade and thunderbird

  - by Dcm1405

  After applying the suggested updates (179) an error message at the very end of the process suggested me to run apt-get install -f. Since it is a fairly new Ubuntu install (x86) I didn't setup anything in Thunderbird yet. Different error messages (see details) were generated with the -f process: ~$ sudo apt-get install -f Reading package lists... Done Building dependency tree Reading state information... Done Correcting dependencies... Done The following extra packages will be installed: thunderbird Suggested packages: latex-xft-fonts The following packages will be upgraded: thunderbird 1 upgraded, 0 newly installed, 0 to remove and 0 not upgraded. 2 not fully installed or removed. Need to get 0 B/20.8 MB of archives. After this operation, 594 kB of additional disk space will be used. Do you want to continue [Y/n]? y (Reading database ... 170457 files and directories currently installed.) Preparing to replace thunderbird 11.0.1+build1-0ubuntu2 (using .../thunderbird_12.0.1+build1-0ubuntu0.12.04.1_i386.deb) ... Unpacking replacement thunderbird ... dpkg-deb (subprocess): data: internal gzip read error: '<fd:4>: invalid code lengths set' dpkg-deb: error: subprocess <decompress> returned error exit status 2 dpkg: error processing /var/cache/apt/archives /thunderbird_12.0.1+build1-0ubuntu0.12.04.1_i386.deb (--unpack): short read on buffer copy for backend dpkg-deb during `./usr/lib/thunderbird/libxul.so' Errors were encountered while processing: /var/cache/apt/archives/thunderbird_12.0.1+build1-0ubuntu0.12.04.1_i386.deb E: Sub-process /usr/bin/dpkg returned an error code (1)

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• Get Started with JavaFX 2 and Scene Builder

  - by Janice J. Heiss

  Up on otn/java is a very useful article by Oracle Java/Middleware/Core Tech Engineer Mark Heckler, titled, “How to Get Started (FAST!) with JavaFX 2 and Scene Builder.”  Heckler, who has development experience in numerous environments, shows developers how to develop a JavaFX application using Scene Builder “in less time than it takes to drink a cup of coffee, while learning your way around in the process”. He begins with a warning and a reassurance: “JavaFX is a new paradigm and can seem a bit imposing when you first take a look at it. But remember, JavaFX is easy and fun. Let's give it a try.” Next, after showing readers how to download and install JDK/JavaFX and Scene Builder, he informs the reader that they will “create a simple JavaFX application, create and modify a window using Scene Builder, and successfully test it in under 15 minutes.” Then readers download some NetBeans files:“EasyJavaFX.java contains the main application class. We won't do anything with this class for our example, as its primary purpose in life is to load the window definition code contained in the FXML file and then show the main stage/scene. You'll keep the JavaFX terms straight with ease if you relate them to the theater: a platform holds a stage, which contains scenes. SampleController.java is our controller class that provides the ‘brains’ behind the graphical interface. If you open the SampleController, you'll see that it includes a property and a method tagged with @FXML. This tag enables the integration of the visual controls and elements you define using Scene Builder, which are stored in an FXML (FX Markup Language) file. Sample.fxml is the definition file for our sample window. You can right-click and Edit the filename in the tree to view the underlying FXML -- and you may need to do that if you change filenames or properties by hand - or you can double-click on it to open it (visually) in Scene Builder.” Then Scene Builder enters the picture and the task is soon done. Check out the article here.

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• AJAX driven "page complete" function? Am I doing it right?

  - by Julian H. Lam

  This one might get me slaughtered, since I'm pretty sure it's bad coding practice, so here goes: I have an AJAX driven site which loads both content and javascript in one go using Mootools' Request.HTML. Since I have initialization scripts that need to be run to finish "setting up" the template, I include those in a function called pageComplete(), on every page Visiting one page to another causes the previous pageComplete() function to no longer apply, since a new one is defined. The javascript function that loads pages dynamically calls pageComplete() blindly when the AJAX call is completed and is loaded onto the page: function loadPage(page, params) { // page is a string, params is a javascript object if (pageRequest && pageRequest.isRunning) pageRequest.cancel(); pageRequest = new Request.HTML({ url: '<?=APPLICATION_LINK?>' + page, evalScripts: true, onSuccess: function(tree, elements, html) { // Empty previous content and insert new content $('content').empty(); $('content').innerHTML = html; pageComplete(); pageRequest = null; } }).send('params='+JSON.encode(params)); } So yes, if pageComplete() is not defined in one the pages, the old pageComplete() is called, which could potentially be disastrous, but as of now, every single page has pageComplete() defined, even if it is empty. Good idea, bad idea?

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• Searching integer sequences

  - by David Gibson

  I have a fairly complex search problem that I've managed to reduce to the following description. I've been googling but haven't been able to find an algorithm that seems to fit my problem cleanly. In particular the need to skip arbitrary integers. Maybe someone here can point me to something? Take a sequence of integers A, for example (1 2 3 4) Take various sequences of integers and test if any of them match A such that. A contains all of the integers in the tested sequence The ordering of the integers in the tested sequence are the same in A We don't care about any integers in A that are not in the test sequence We want all matching test sequences, not just the first. An example A = (1 2 3 4) B = (1 3) C = (1 3 4) D = (3 1) E = (1 2 5) B matches A C matches A D does not match A as the ordering is different E does not match A as it contains an integer not in A I hope that this explanation is clear enough. The best I've managed to do is to contruct a tree of the test sequences and iterate over A. The need to be able to skip integers leads to a lot of unsuccessful search paths. Thanks Reading some suggestions I feel that I have to clarify a couple of points that I left too vague. Repeated numbers are allowed, in fact this is quite important as it allows a single test sequence to match A is multiple ways A = (1234356), B = (236), matches could be either -23---6 or -2--3-6 I expect there to be a very large number of test sequences, in the thousands at least and sequence A will tend to have a max length of maybe 20. Thus simply trying to match each test sequence one by one by iterating becomes extremely inefficient. Sorry if this wasn't clear.

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• Texture displays on Android emulator but not on device

  - by Rob

  I have written a simple UI which takes an image (256x256) and maps it to a rectangle. This works perfectly on the emulator however on the phone the texture does not show, I see only a white rectangle. This is my code: public void onSurfaceCreated(GL10 gl, EGLConfig config) { byteBuffer = ByteBuffer.allocateDirect(shape.length * 4); byteBuffer.order(ByteOrder.nativeOrder()); vertexBuffer = byteBuffer.asFloatBuffer(); vertexBuffer.put(cardshape); vertexBuffer.position(0); byteBuffer = ByteBuffer.allocateDirect(shape.length * 4); byteBuffer.order(ByteOrder.nativeOrder()); textureBuffer = byteBuffer.asFloatBuffer(); textureBuffer.put(textureshape); textureBuffer.position(0); // Set the background color to black ( rgba ). gl.glClearColor(0.0f, 0.0f, 0.0f, 0.5f); // Enable Smooth Shading, default not really needed. gl.glShadeModel(GL10.GL_SMOOTH); // Depth buffer setup. gl.glClearDepthf(1.0f); // Enables depth testing. gl.glEnable(GL10.GL_DEPTH_TEST); // The type of depth testing to do. gl.glDepthFunc(GL10.GL_LEQUAL); // Really nice perspective calculations. gl.glHint(GL10.GL_PERSPECTIVE_CORRECTION_HINT, GL10.GL_NICEST); gl.glEnable(GL10.GL_TEXTURE_2D); loadGLTexture(gl); } public void onDrawFrame(GL10 gl) { gl.glClear(GL10.GL_COLOR_BUFFER_BIT | GL10.GL_DEPTH_BUFFER_BIT); gl.glDisable(GL10.GL_DEPTH_TEST); gl.glMatrixMode(GL10.GL_PROJECTION); // Select Projection gl.glPushMatrix(); // Push The Matrix gl.glLoadIdentity(); // Reset The Matrix gl.glOrthof(0f, 480f, 0f, 800f, -1f, 1f); gl.glMatrixMode(GL10.GL_MODELVIEW); // Select Modelview Matrix gl.glPushMatrix(); // Push The Matrix gl.glLoadIdentity(); // Reset The Matrix gl.glEnableClientState(GL10.GL_VERTEX_ARRAY); gl.glEnableClientState(GL10.GL_TEXTURE_COORD_ARRAY); gl.glLoadIdentity(); gl.glTranslatef(card.x, card.y, 0.0f); gl.glBindTexture(GL10.GL_TEXTURE_2D, texture[0]); //activates texture to be used now gl.glVertexPointer(2, GL10.GL_FLOAT, 0, vertexBuffer); gl.glTexCoordPointer(2, GL10.GL_FLOAT, 0, textureBuffer); gl.glDrawArrays(GL10.GL_TRIANGLE_STRIP, 0, 4); gl.glDisableClientState(GL10.GL_VERTEX_ARRAY); gl.glDisableClientState(GL10.GL_TEXTURE_COORD_ARRAY); } public void onSurfaceChanged(GL10 gl, int width, int height) { // Sets the current view port to the new size. gl.glViewport(0, 0, width, height); // Select the projection matrix gl.glMatrixMode(GL10.GL_PROJECTION); // Reset the projection matrix gl.glLoadIdentity(); // Calculate the aspect ratio of the window GLU.gluPerspective(gl, 45.0f, (float) width / (float) height, 0.1f, 100.0f); // Select the modelview matrix gl.glMatrixMode(GL10.GL_MODELVIEW); // Reset the modelview matrix gl.glLoadIdentity(); } public int[] texture = new int[1]; public void loadGLTexture(GL10 gl) { // loading texture Bitmap bitmap; bitmap = BitmapFactory.decodeResource(context.getResources(), R.drawable.image); // generate one texture pointer gl.glGenTextures(0, texture, 0); //adds texture id to texture array // ...and bind it to our array gl.glBindTexture(GL10.GL_TEXTURE_2D, texture[0]); //activates texture to be used now // create nearest filtered texture gl.glTexParameterf(GL10.GL_TEXTURE_2D, GL10.GL_TEXTURE_MIN_FILTER, GL10.GL_NEAREST); gl.glTexParameterf(GL10.GL_TEXTURE_2D, GL10.GL_TEXTURE_MAG_FILTER, GL10.GL_LINEAR); // Use Android GLUtils to specify a two-dimensional texture image from our bitmap GLUtils.texImage2D(GL10.GL_TEXTURE_2D, 0, bitmap, 0); // Clean up bitmap.recycle(); } As per many other similar issues and resolutions on the web i have tried setting the minsdkversion is 3, loading the bitmap via an input stream bitmap = BitmapFactory.decodeStream(is), setting BitmapFactory.Options.inScaled to false, putting the images in the nodpi folder and putting them in the raw folder.. all of which didn't help. I'm not really sure what else to try..

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