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• Cannot install xdebug with WAMP SERVER 2.1

  - by Jimmy Nguyen

  Hi all, I use WAMP SERVER 2.1 and select PHP 5.3.3 for my system, so I select xDebug with php_xdebug-2.1.0-5.3-vc6.dll and changed name becoming php_xdebug.dll for easy way to use. Following the instructions: php.ini (in Apache folder) extension=php_xdebug.dll ... zend_extension = "C:/wamp/bin/php/php5.3.3/ext/php_xdebug.dll" xdebug.remote_enable=on xdebug.remote_handler=dbgp xdebug.remote_host=localhost xdebug.remote_port=9000 xdebug.idekey="netbeans-xdebug" However, nothing happens, there are no information related to xdebug from phpinfo. Also xdebug announce that xdebug have not installed yet (http://xdebug.org/find-binary.php). I am so worried causing too much time for configuration. I got crazy and totally gave up. Anyone have ideas to solve it, I am so appreciated what you help me. Thanks

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• php selecting hash using wildcards

  - by tipu

  Say I have a hashmap, $hash = array('fox' => 'some value', 'fort' => 'some value 2', 'fork' => 'some value again); I am trying to accomplish an autocomplete feature. When the user types 'fo', I would like to retrieve, via ajax, the 3 keys from $hash. When the user types 'for', I would like to only retrieve the keys fort and fork. Is this possible? What I was thinking was using binary search to isolate the keys with 'f', instead of brute-force searching. Then continue eliminating the indexes as the user types out their query. Is there a more efficient solution to this?

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• Search algorithm for a sorted double linked list

  - by SalamiArmi

  As a learning excercise, I've just had an attempt at implementing my own 'merge sort' algorithm. I did this on an std::list, which apparently already had the functions sort() and merge() built in. However, I'm planning on moving this over to a linked list of my own making, so the implementation is not particuarly important. The problem lies with the fact that a std::list doesnt have facilities for accessing random nodes, only accessing the front/back and stepping through. I was originally planning on somehow performing a simple binary search through this list, and finding my answer in a few steps. The fact that there are already built in functions in an std::list for performing these kinds of ordering leads me to believe that there is an equally easy way to access the list in the way I want. Anyway, thanks for your help in advance!

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• retreving long text (CLOB) using CFQuery

  - by CFUser

  I am using CFQuery to retrieve the CLOB field from Oracle DB. If the CLOB filed contains the Data less than ~ 8000, then I can see retrieved the value ( the o/p), however If the value in CLOB field size is more than 8000 chars, then its not retrieving the value. in <cfdump> i can see the query retrieved as 'empty String' though the value exists in Oracle DB. I am using the Oracle Driver in CFadim console enabled 'Enable long text retrieval (CLOB).' and 'Enable binary large object retrieval (BLOB). ' set 'Long Text Buffer (chr)' and 'Blob Buffer(bytes) ' values to 6400000 any suggestions to retrieve the full text?

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• mysql, sqlite database source code

  - by Yang

  hi guys, i know implementing database is a huge topic, but i want to have a basic understanding of how database systems works (e.g. memory management, binary tree, transaction, sql parsing, multi-threading, partitions, etc) by investigating the source code of the database, since there are a few already proven very robust open source databases like mysql, sqlite and so on. however, the code are very complicated and i have no clue where to start. also i find that the old school database textbooks are only explaining the theory, not the implementation details. Can anyone suggest how should i get started and is there any books that emphasis on the technology and techniques of building dbms used in modern database industry? Thank in advance!

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• How to upload video on YouTube with Ruby

  - by viatropos

  I am trying to upload a youtube video using the GData gem (I have seen the youtube_g gem but would like to make it work with pure GData if possible), but I keep getting this error: GData::Client::BadRequestError in 'MyProject::Google::YouTube should upload the actual video to youtube (once it does, mock this test out)' request error 400: No file found in upload request. I am using this code: def metadata data = <<-EOF <?xml version="1.0"?> <entry xmlns="http://www.w3.org/2005/Atom" xmlns:media="http://search.yahoo.com/mrss/" xmlns:yt="http://gdata.youtube.com/schemas/2007"> <media:group> <media:title type="plain">Bad Wedding Toast</media:title> <media:description type="plain"> I gave a bad toast at my friend's wedding. </media:description> <media:category scheme="http://gdata.youtube.com/schemas/2007/categories.cat">People</media:category> <media:keywords>toast, wedding</media:keywords> </media:group> </entry> EOF end @yt = GData::Client::YouTube.new @yt.clientlogin("name", "pass") @yt.developer_key = "myKey" url = "http://uploads.gdata.youtube.com/feeds/api/users/name/uploads" mime_type = "multipart/related" file_path = "sample_upload.mp4" @yt.post_file(url, file_path, mime_type, metadata) What is the recommended/standard way for uploading videos to youtube with ruby, what is your method? Update After applying the changes to wrapped_entry, the string it produces looks like this: --END_OF_PART_59003 Content-Type: application/atom+xml; charset=UTF-8 <?xml version="1.0"?> <entry xmlns="http://www.w3.org/2005/Atom" xmlns:media="http://search.yahoo.com/mrss/" xmlns:yt="http://gdata.youtube.com/schemas/2007"> <media:group> <media:title type="plain">Bad Wedding Toast</media:title> <media:description type="plain"> I gave a bad toast at my friend's wedding. </media:description> <media:category scheme="http://gdata.youtube.com/schemas/2007/categories.cat">People</media:category> <media:keywords>toast, wedding</media:keywords> </media:group> </entry> --END_OF_PART_59003 Content-Type: multipart/related Content-Transfer-Encoding: binary ... and inspecting the request and response looks like this: Request: <GData::HTTP::Request:0x1b8bb44 @method=:post @url="http://uploads.gdata.youtube.com/feeds/api/users/lancejpollard/uploads" @body=#<GData::HTTP::MimeBody:0x1b8c738 @parts=[#<GData::HTTP::MimeBodyString:0x1b8c058 @bytes_read=0 @string="--END_OF_PART_30909\r\nContent-Type: application/atom+xml; charset=UTF-8\r\n\r\n <?xml version=\"1.0\"?>\n<entry xmlns=\"http://www.w3.org/2005/Atom\"\n xmlns:media=\"http://search.yahoo.com/mrss/\"\n xmlns:yt=\"http://gdata.youtube.com/schemas/2007\">\n <media:group>\n <media:title type=\"plain\">Bad Wedding Toast</media:title>\n <media:description type=\"plain\">\n I gave a bad toast at my friend's wedding.\n </media:description>\n <media:category scheme=\"http://gdata.youtube.com/schemas/2007/categories.cat\">People</media:category>\n <media:keywords>toast wedding</media:keywords>\n </media:group>\n</entry> \n\r\n--END_OF_PART_30909\r\nContent-Type: multipart/related\r\nContent-Transfer-Encoding: binary\r\n\r\n"> #<File:/Users/Lance/Documents/Development/git/thing/spec/fixtures/sample_upload.mp4> #<GData::HTTP::MimeBodyString:0x1b8c044 @bytes_read=0 @string="\r\n--END_OF_PART_30909--"] @current_part=0 @boundary="END_OF_PART_30909" @headers={"Slug"="sample_upload.mp4" "User-Agent"="GoogleDataRubyUtil-AnonymousApp" "GData-Version"="2" "X-GData-Key"="key=AI39si7jkhs_ECjF4unOQz8gpWGSKXgq0KJpm8wywkvBSw4s8oJd5p5vkpvURHBNh-hiYJtoKwQqSfot7KoCkeCE32rNcZqMxA" "Content-Type"="multipart/related; boundary=\"END_OF_PART_30909\"" "MIME-Version"="1.0"} Response: #<GData::HTTP::Response:0x1b897e0 @body="No file found in upload request." @headers={"cache-control"=>"no-cache no-store must-revalidate" "connection"=>"close" "expires"=>"Fri 01 Jan 1990 00:00:00 GMT" "content-type"=>"text/plain; charset=utf-8" "date"=>"Fri 11 Dec 2009 02:10:25 GMT" "server"=>"Upload Server Built on Nov 30 2009 13:21:18 (1259616078)" "x-xss-protection"=>"0" "content-length"=>"32" "pragma"=>"no-cache"} @status_code=400> Still not working, I'll have to check it out more with those changes.

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• Plain-English tutorial on artificial neural networks?

  - by Stuart

  I've Googled, StackOverflowed, everything, and I cannot seem to find a tutorial I can understand. I understand the concept of genetic algorithms, and how to implement them, (Though I haven't tried) but I cannot grasp the concept of neural networks. I know vaguely how they work... And that's about it. Could someone direct me to a tutorial that could help someone who has not even graduated middle school yet? Sure, I'm several years ahead of the majority of people my grade, but I don't understand summation, (which I apparently need if I don't want a simple binary output) vectors, and other things that I apparently should know. Is there a simple, bare-bones tutorial for neural networks? After I learn the basics, I'll proceed to more difficult ones. Preferably, they would be in Java. Thanks!

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• SSRS2008: LocalReport export to HTML / fragment

  - by queen3

  I need local RDL report to be exported to HTML, preferably HTML fragment. In 2005 it wasn't officially supported but there was a trick. In SSRS2008 they seem to drop this support (there's no HTML extension in the supported extensions when enumerating using reflection) and use RPL instead which is a binary format that I doubt someone will be happy to parse. Actually it's doesn't seem to be about HTML at all. Now, is there a way to render HTML using SSRS2008 local report? Notice that I use VS2008 but with reporting assemblies installed from VS2010 Beta 2 reportviewer.

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• Gothic Medieval font that you can embed With Cufón?

  - by BioGeek

  Hey, I'm looking for a font in Gothic Medieval style that I can embed with Cufón. I tried with the Cloister Black .ttf file but the generator responded with: The file you uploaded could not be converted. Currently only TrueType (TTF), OpenType (OTF), Printer Font Binary (PFB) and PostScript fonts are supported. If you're sure the font is valid, it is likely that the author of the font has decided to not allow modification and/or embedding of the font. This can happen quite often especially with "freeware" TrueType fonts. You must contact the author of the font for a less restricted version.

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• How do I embed an expect script that takes in arguments into a bash shell script?

  - by fzkl

  I am writing a bash script which amongst many other things uses expect to automatically run a binary and install it by answering installer prompts. I was able to get my expect script to work fine when the expect script is called in my bash script with the command "expect $expectscriptname $Parameter". However, I want to embed the expect script into the shell script instead of having to maintain two separate script files for the job. I searched around and found that the procedure to embed expect into bash script was to declare a variable like VAR below and then echo it.: VAR=$(expect -c " #content of expect script here ") echo "$VAR" 1) I don't understand how echoing $VAR actually runs the expect script. Could anyone explain? 2) I am not sure how to pass $Parameter into VAR or to the echo statement. This is my main concern. Any ideas? Thanks.

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• iPad application submission with iPhone SDK beta 5 rejected

  - by FredM

  I try to send an specific iPad Application to iTunes connect before March 27 and as Apple says: "Only iPad apps compiled with iPhone SDK 3.2 beta 5 will be accepted for this initial review." So I compiled my application with iPhone SDK 3.2 beta 5 with a distribution provisioning profile. But when I upload my application on iTunes Connect, I have the following error: "The binary you uploaded was invalid. A pre-release beta version of the SDK was used to build the application" For sure, it's the beta 5 ! Have you got an idea? Thank you in advance. Fred

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• uploading a i-phone application to apple store??

  - by hemant

  i have been trying to uplaod an application to apple store for 2 days now..first they said the provisioning profile was not right due to which i had to make a new one and upload it again now after that problem was solved while uploading the new binary it said the version was same with the previous minor version(1.0 - which someone else uploaded in my company)..then i changed the version to 1.1 by changing it in target info properties..then i cleaned all targets quite the xcode,restarted the xcode and build the project again..it succeeded and now wen i uploaded it it still says the same error version same with the previous minor version is there any other way of changing the version number though in my info.plist file it is showing version:1.1??

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• Stripe suppression algorithm needed

  - by maximus

  I have images with text. There are dark stripes in image that still exists in binary image too. That makes characters connected with that stripe - it can be vertical or horizontal (or at some angle) I need to remove them from image at first, and then to binarize. I've seen bandpass filter in ImageJ program that have some options like - suppress horizontal stripes, and it works good, but it also apply a bandpass filtering. So any idea please how to do it. I think it should be done in frequency domain.

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• Xcode compile error: Can't find an (old) file I used to have

  - by Carol

  This is what happens when I try to compile my iPhone app with Xcode v3.1.4 What in the world does it all mean? (And how do I fix it?) Processing /Users/carol/Documents/MyApp/build/Release-iphonesimulator/MyApp.app/Info.plist TabBarDemo2-Info.plist cd /Users/carol/Documents/MyApp setenv PATH "/Developer/Platforms/iPhoneSimulator.platform/Developer/usr/bin:/Developer/usr/bin:/usr/bin:/bin:/usr/sbin:/sbin" TabBarDemo2-Info.plist -genpkginfo /Users/carol/Documents/MyApp/build/Release-iphonesimulator/MyApp.app/PkgInfo -expandbuildsettings -format binary -o /Users/carol/Documents/MyApp/build/Release-iphonesimulator/MyApp.app/Info.plist error: The file “TabBarDemo2-Info.plist” does not exist.

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• Efficiently check string for one of several hundred possible suffixes

  - by Ghostrider

  I need to write a C/C++ function that would quickly check if string ends with one of ~1000 predefined suffixes. Specifically the string is a hostname and I need to check if it belongs to one of several hundred predefined second-level domains. This function will be called a lot so it needs to be written as efficiently as possible. Bitwise hacks etc anything goes as long as it turns out fast. Set of suffixes is predetermined at compile-time and doesn't change. I am thinking of either implementing a variation of Rabin-Karp or write a tool that would generate a function with nested ifs and switches that would be custom tailored to specific set of suffixes. Since the application in question is 64-bit to speed up comparisons I could store suffixes of up to 8 bytes in length as const sorted array and do binary search within it. Are there any other reasonable options?

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• Anyone using NoSQL databases for medical record storage?

  - by Brian Bay

  Electronic Medical records are composed of different types of data. Visit information ( date/location/insurance info) seems to lend itself to a RDMS. Other types of medical infomation, such as lab reports, x-rays, photos, and electronic signatures, are document based and would seem to be a good candidate for a 'document-oriented' database, such as MongoDB. Traditionally, binary data would be stored as a BLOB in a RDBMS. A hybrid approach using a traditional RDBMS along with a 'document-oriented' database would seem like good alternative to this. Other alternative would be something like DB2 purexml. The ultimate answer could be that 'it depends', but I really just wanted to get some general feedback/ideas on this. Is anyone using the NoSql approach for medical records?

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• Using ServletOutputStream to write very large files in a Java servlet without memory issues

  - by Martin

  I am using IBM Websphere Application Server v6 and Java 1.4 and am trying to write large CSV files to the ServletOutputStream for a user to download. Files are ranging from a 50-750MB at the moment. The smaller files aren't causing too much of a problem but with the larger files it appears that it is being written into the heap which is then causing an OutOfMemory error and bringing down the entire server. These files can only be served out to authenticated users over https which is why I am serving them through a Servlet instead of just sticking them in Apache. The code I am using is (some fluff removed around this): resp.setHeader("Content-length", "" + fileLength); resp.setContentType("application/vnd.ms-excel"); resp.setHeader("Content-Disposition","attachment; filename=\"export.csv\""); FileInputStream inputStream = null; try { inputStream = new FileInputStream(path); byte[] buffer = new byte[1024]; int bytesRead = 0; do { bytesRead = inputStream.read(buffer, offset, buffer.length); resp.getOutputStream().write(buffer, 0, bytesRead); } while (bytesRead == buffer.length); resp.getOutputStream().flush(); } finally { if(inputStream != null) inputStream.close(); } The FileInputStream doesn't seem to be causing a problem as if I write to another file or just remove the write completly the memory usage doesn't appear to be a problem. What I am thinking is that the resp.getOutputStream().write is being stored in memory until the data can be sent through to the client. So the entire file might be read and stored in the resp.getOutputStream() causing my memory issues and crashing! I have tried Buffering these streams and also tried using Channels from java.nio, none of which seems to make any bit of difference to my memory issues. I have also flushed the outputstream once per iteration of the loop and after the loop, which didn't help.

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• Reading file resource in Unix and MacOS

  - by Sanjeev

  Hi, I am writing my first wxWidgets application which aims to be cross-platform. The program uses dll file for plugins and in Windows, reads dll resource part for information regarding plugin name, author name etc. I have never used Unix or MacOS (little Linux though) and am wondering whether compiling binary for these other OSes will require changes to the code written for Windows. For instance, is there a DLL equivalent in Unix and MacOS? Are there any provisions of compiling resource strings and files into a such files? Thanks, Sanjeev

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• How do I get source file information with dumpbin /symbols when compiling with VS 2005?

  - by Thomas Dartsch

  I have a tool which uses the output of dumpbin /symbols to do some dependency analysis with our C/C++ libraries. When we compiled the libs with VS 6.0, the dumpbin COFF SYMBOL TABLE contained entries like 000 00000008 DEBUG notype Filename | .file x:\mydir\mysource.c allowing me to get the relationship between sources and defined/used symbols, which is essential for my tool. When we compile with VS 2005, these entries are missing. When I look at the libs with a hex editor, it seems that there is no filename information at all included in the binary files, so it seems not to be a dumbin problem but is compilation related. So I'm looking for a way to get the Filename entries back into my libraries when compiling with VS 2005.

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• What is technically more advanced: Python or Assembler? [closed]

  - by el ka es

  I wondered which of these languages is more powerful. With powerful I don't mean the readability, assembler would be naturally the winner here, but something resulting from, for example, the following factors: Which of them is more high-level? (Both aren't really but one has to be more) Who would be the possibly fastest in compiled state? (There is no Python compiler out there as far as I know but it wouldn't be hard writing one I suppose) Which of the both has the better code length/code action ratio? What I mean is If you get to distracted by the, compared to Python, improved readability of assembler, just think of writing plain binary/machine code as what assembler assembles to. Both languages are so basic that it should be possible to answer the question(s) in a rather objective view, I hope.

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• A method to change effective user id of a running program?

  - by Brendan Long

  I'm writing a simple package manager and I'd like to automatically try sudo if the program isn't run as root. I found a function called seteuid, which looks likes it's exactly what I need, but I don't have the permissions to run it. So far all I can think of is a bash script to check before they get to the actual binary, but I'd like to do this all as C++ if possible. Is there any method of changing a processes's euid after it starts executing? Or a way to call sudo?

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• Oracle T4CPreparedStatement memory leaks?

  - by Jay

  A little background on the application that I am gonna talk about in the next few lines: XYZ is a data masking workbench eclipse RCP application: You give it a source table column, and a target table column, it would apply a trasformation (encryption/shuffling/etc) and copy the row data from source table to target table. Now, when I mask n tables at a time, n threads are launched by this app. Here is the issue: I have run into a production issue on first roll out of the above said app. Unfortunately, I don't have any logs to get to the root. However, I tried to run this app in test region and do a stress test. When I collected .hprof files and ran 'em through an analyzer (yourKit), I noticed that objects of oracle.jdbc.driver.T4CPreparedStatement was retaining heap. The analysis also tells me that one of my classes is holding a reference to this preparedstatement object and thereby, n threads have n such objects. T4CPreparedStatement seemed to have character arrays: lastBoundChars and bindChars each of size char[300000]. So, I researched a bit (google!), obtained ojdbc6.jar and tried decompiling T4CPreparedStatement. I see that T4CPreparedStatement extends OraclePreparedStatement, which dynamically manages array size of lastBoundChars and bindChars. So, my questions here are: Have you ever run into an issue like this? Do you know the significance of lastBoundChars / bindChars? I am new to profiling, so do you think I am not doing it correct? (I also ran the hprofs through MAT - and this was the main identified issue - so, I don't really think I could be wrong?) I have found something similar on the web here: http://forums.oracle.com/forums/thread.jspa?messageID=2860681 Appreciate your suggestions / advice.

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• How to setup RAM disk drive using python or WMI?

  - by Ming Xie

  Hi, The background of my question is associated with Tesseract, the free OCR engine (1985-1995 by HP, now hosting in Google). It specifically requires an input file and an output file; the argument only takes filename (not stream / binary string), so in order to use the wrapper API such as pytesser and / or python-tesser.py, the OCR temp files must be created. I, however, have a lot of images need to OCR; frequent disk write and remove is inevitable (and of course the performance hit). The only choice I could think about is changing the wrapper class and point the temp file to RAM disk, which bring this problem up. If you have better solution, please let me know. Thanks a lot. -M

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• Assigning a property across threads

  - by Mike

  I have set a property across threads before and I found this post http://stackoverflow.com/questions/142003/cross-thread-operation-not-valid-control-accessed-from-a-thread-other-than-the-t about getting a property. I think my issue with the code below is setting the variable to the collection is an object therefore on the heap and therefore is just creating a pointer to the same object So my question is besides creating a deep copy, or copying the collection into a different List object is there a better way to do the following to aviod the error during the for loop. Cross-thread operation not valid: Control 'lstProcessFiles' accessed from a thread other than the thread it was created on. Code: private void btnRunProcess_Click(object sender, EventArgs e) { richTextBox1.Clear(); BackgroundWorker bg = new BackgroundWorker(); bg.DoWork += new DoWorkEventHandler(bg_DoWork); bg.RunWorkerCompleted += new RunWorkerCompletedEventHandler(bg_RunWorkerCompleted); bg.RunWorkerAsync(lstProcessFiles.SelectedItems); } void bg_DoWork(object sender, DoWorkEventArgs e) { WorkflowEngine engine = new WorkflowEngine(); ListBox.SelectedObjectCollection selectedCollection=null; if (lstProcessFiles.InvokeRequired) { // Try #1 selectedCollection = (ListBox.SelectedObjectCollection) this.Invoke(new GetSelectedItemsDelegate(GetSelectedItems), new object[] { lstProcessFiles }); // Try #2 //lstProcessFiles.Invoke( // new MethodInvoker(delegate { // selectedCollection = lstProcessFiles.SelectedItems; })); } else { selectedCollection = lstProcessFiles.SelectedItems; } // *********Same Error on this line******************** // Cross-thread operation not valid: Control 'lstProcessFiles' accessed // from a thread other than the thread it was created on. foreach (string l in selectedCollection) { if (engine.LoadProcessDocument(String.Format(@"C:\TestDirectory\{0}", l))) { try { engine.Run(); WriteStep(String.Format("Ran {0} Succussfully", l)); } catch { WriteStep(String.Format("{0} Failed", l)); } engine.PrintProcess(); WriteStep(String.Format("Rrinted {0} to debug", l)); } } } private delegate void WriteDelegate(string p); private delegate ListBox.SelectedObjectCollection GetSelectedItemsDelegate(ListBox list); private ListBox.SelectedObjectCollection GetSelectedItems(ListBox list) { return list.SelectedItems; }

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• iPhone - how to store documents consisting of multiple images?

  - by Joe Strout

  My iPhone (actually, iPad) app creates documents that consist of several images, plus a bit of metadata. What's the best practice for storing these sorts of documents on disk? I see two main options: Create a folder for each document, and store my images as separate PNG files within the folder (plus another little file for the metadata). Create a single file which contains all images and metadata. But I'm not sure how to easily do option 2. I think I can convert my images in PNG format to/from NSData, but then what? I'm still a newbie at Cocoa, but I believe I saw something about stuffing mixed data into some NSSomethingOrOther and having this write itself out to disk, and read itself back in later. Does this ring a bell with anyone? And, will it work with large binary blobs of data like my images? Or would you recommend I simply go with option 1?

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