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• Why is it so difficult to get a working IDE for Scala?

  - by Alex R

  I recently gave up trying to use Scala in Eclipse (basic stuff like completion doesn't work). So now I'm trying IntelliJ. I'm not getting very far. This was the original error. See below for update: Scala signature Predef has wrong version Expected 5.0 found: 4.1 in .... scala-library.jar I tried both versions 2.7.6 and 2.8 RC1 of scala-*.jar, the result was the same. JDK is 1.6.u20. UPDATE Today I uninstalled IntelliJ 9.0.1, and installed 9.0.2 Early Availability, with the 4/14 stable version of the Scala plug-in. Then I setup a project from scratch through the wizards: new project from scratch JDK is 1.6.u20 accept the default (project) instead of global / module accept the download of Scala 2.8.0beta1 into project's lib folder Created a new class: object hello { def main(args: Array[String]) { println("hello: " + args); } } For my efforts, I now have a brand-new error :) Here it is: Scalac internal error: class java.lang.ClassNotFoundException [java.net.URLClassLoader$1.run(URLClassLoader.java:202), java.security.AccessController.doPrivileged(Native Method), java.net.URLClassLoader.findClass(URLClassLoader.java:190), java.lang.ClassLoader.loadClass(ClassLoader.java:307), sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301), java.lang.ClassLoader.loadClass(ClassLoader.java:248), java.lang.Class.forName0(Native Method), java.lang.Class.forName(Class.java:169), org.jetbrains.plugins.scala.compiler.rt.ScalacRunner.main(ScalacRunner.java:72)] Thanks

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• strange multiple files download - NSURLConnection

  - by Georg

  hi all, I encounter a problem by following your comment. I would like to download different file at same time with different delegate: .h: NSMutableData *fileData; .m: NSString *imgfile = [NSString stringWithFormat:@"http://xxxx/01.jpg"]; NSURL *fileURL1 = [NSURL URLWithString:imgfile]; NSString *audiofile = [NSString stringWithFormat:@"http://xxxx/01.mp3"]; NSURL *fileURL2 = [NSURL URLWithString:audiofile]; NSURLRequest *request1 = [NSURLRequest requestWithURL:fileURL1 cachePolicy:NSURLRequestUseProtocolCachePolicy timeoutInterval:10.0 ]; NSURLRequest *request2 = [NSURLRequest requestWithURL:fileURL2 cachePolicy:NSURLRequestUseProtocolCachePolicy timeoutInterval:10.0 ]; NSArray *connections = [[NSArray alloc] initWithObjects: [[NSURLConnection alloc] initWithRequest:request1 delegate:self ], [[NSURLConnection alloc] initWithRequest:request2 delegate:self ], nil]; - (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response { fileData = [[NSMutableData alloc] init]; } - (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data { [fileData appendData:data]; } - (void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error { NSLog(@"Unable to fetch data"); } ok, the download process works, but, the file size of jpg and mp3 are incorrect, the only correct thing is the total file size (jpg+mp3), please could you have a look on the code, what is missing? Another question is, I put the file in a NSMutableArray, my question is, how to check which index of array is the correct file type (jpg and mp3)? because I need to save them to the device folder.

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• Dynamic Programming Recursion and a sprinkle of Memoization

  - by Auburnate

  I have this massive array of ints from 0-4 in this triangle. I am trying to learn dynamic programming with Ruby and would like some assistance in calculating the number of paths in the triangle that meet three criterion: You must start at one of the zero points in the row with 70 elements. Your path can be directly above you one row (if there is a number directly above) or one row up heading diagonal to the left. One of these options is always available The sum of the path you take to get to the zero on the first row must add up to 140. Example, start at the second zero in the bottom row. You can move directly up to the one or diagonal left to the 4. In either case, the number you arrive at must be added to the running count of all the numbers you have visited. From the 1 you can travel to a 2 (running sum = 3) directly above or to the 0 (running sum = 1) diagonal to the left. 0 41 302 2413 13024 024130 4130241 30241302 241302413 1302413024 02413024130 413024130241 3024130241302 24130241302413 130241302413024 0241302413024130 41302413024130241 302413024130241302 2413024130241302413 13024130241302413024 024130241302413024130 4130241302413024130241 30241302413024130241302 241302413024130241302413 1302413024130241302413024 02413024130241302413024130 413024130241302413024130241 3024130241302413024130241302 24130241302413024130241302413 130241302413024130241302413024 0241302413024130241302413024130 41302413024130241302413024130241 302413024130241302413024130241302 2413024130241302413024130241302413 13024130241302413024130241302413024 024130241302413024130241302413024130 4130241302413024130241302413024130241 30241302413024130241302413024130241302 241302413024130241302413024130241302413 1302413024130241302413024130241302413024 02413024130241302413024130241302413024130 413024130241302413024130241302413024130241 3024130241302413024130241302413024130241302 24130241302413024130241302413024130241302413 130241302413024130241302413024130241302413024 0241302413024130241302413024130241302413024130 41302413024130241302413024130241302413024130241 302413024130241302413024130241302413024130241302 2413024130241302413024130241302413024130241302413 13024130241302413024130241302413024130241302413024 024130241302413024130241302413024130241302413024130 4130241302413024130241302413024130241302413024130241 30241302413024130241302413024130241302413024130241302 241302413024130241302413024130241302413024130241302413 1302413024130241302413024130241302413024130241302413024 02413024130241302413024130241302413024130241302413024130 413024130241302413024130241302413024130241302413024130241 3024130241302413024130241302413024130241302413024130241302 24130241302413024130241302413024130241302413024130241302413 130241302413024130241302413024130241302413024130241302413024 0241302413024130241302413024130241302413024130241302413024130 41302413024130241302413024130241302413024130241302413024130241 302413024130241302413024130241302413024130241302413024130241302 2413024130241302413024130241302413024130241302413024130241302413 13024130241302413024130241302413024130241302413024130241302413024 024130241302413024130241302413024130241302413024130241302413024130 4130241302413024130241302413024130241302413024130241302413024130241 30241302413024130241302413024130241302413024130241302413024130241302 241302413024130241302413024130241302413024130241302413024130241302413 1302413024130241302413024130241302413024130241302413024130241302413024 02413024130241302413024130241302413024130241302413024130241302413024130

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• jQuery - .Ready fires on div tag not in the page

  - by Anders Juul

  Dear all, I have implemented below function in a separate .js script file which I load in my main page (Asp.net mvc). The call back to server is rather costly but ok if specifically requested on the sub-page / content page on which my div tag needs to be filled. My problem is that the code runs on every page, including pages where the div tag is not present. How can I remedy my code? Any comments welcome, Thanks, Anders, Denmark jQuery("divStatWrapper").ready(function() { jQuery.getJSON("/Statistics/GetPointsDevelopment", function(json) { jQuery("#divStatWrapper #divStatLoading").fadeOut(1000); var jsonPoints = new Array(); jQuery.each(json.Points, function(i, item) { jsonPoints.push(item.PlayerPoints ); }); jsonPoints.reverse(); var api = new jGCharts.Api(); jQuery('<img>') .attr('src', api.make({ data : jsonPoints, type : "lc", size : "600x250" })) .appendTo("#divStatContents"); jQuery("#divStatWrapper #divStatContents").fadeIn(1000); }); });

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• Laravel - Paginate and get()

  - by Bajongskie

  With the code below, what I wanted was paginate the query I created. But, when I try to add paginate after get, it throws an error. I wanted to remain get since I want to limit to columns that was set on $fields. What would should be the better idea to paginate this thing? or what's a good substitute for get and limit the columns? What I tried: ->get($this->fields)->paginate($this->limit) Part of my controller: class PhonesController extends BaseController { protected $limit = 5; protected $fields = array('Phones.*','manufacturers.name as manufacturer'); /** * Display a listing of the resource. * * @return Response */ public function index() { if (Request::query("str")) { $phones = Phone::where("model", 'LIKE', '%'. Request::query('str') . '%') ->join('manufacturers', 'manufacturers_id', '=', 'manufacturers.id') ->get($this->fields); } else { $phones = Phone::join('manufacturers', 'manufacturers_id', '=', 'manufacturers.id') ->get($this->fields); } return View::make('phones.index')->with('phones', $phones); } }

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• Get ListView Visible items

  - by Vincent Piel

  I have a ListView which might contains a lot of items, so it is virtualized and recycling items. It does not use sort. I need to refresh some value display, but when there are too many items, it is too slow to update everything, so I would like to refresh only the visible items. How could I get a list of all currently displayed items ? I tried to look into the ListView or in the ScrollViewer, but I still have no idea how to achieve this. The solution must NOT go through all items to test if they can be seen, because this would be too slow. I'm not sure code or xaml would be usefull, it is just a Virtualized/Recycling ListView with its ItemSource bound to an Array. Edit Answer : thanks to akjoshi, i found the way : get the ScrollViewer of the ListView (with a FindDescendant method, that you can do yourself with the VisualTreeHelper ). Then use its ScrollViewer.VerticalOffset : it is the number of the first item shown and ScrollViewer.ViewportHeight : it is the count of items shown. Rq : CanContentScroll must be true.

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• Create custom rewrite rule for my WordPress plugin

  - by kitsched

  I'm writing a plug-in for WordPress which in fact will be a separate ordering module (it will be placed in an IFRAME on the site I'm developing as well as others) but with its admin tied into WordPress. I wrote the administration part without too much hassle, however I'm having trouble with the front-end. First of all I'd like my script to be accessible via www.mysite.com/order/ and, as per the WordPress codex, I found I need to place the following code into my main plugin file: add_action('init', 'ta_flush_rewrite_rules'); function ta_flush_rewrite_rules() { global $wp_rewrite; $wp_rewrite->flush_rules(); } add_action('generate_rewrite_rules', 'ta_add_rewrite_rules'); function ta_add_rewrite_rules( $wp_rewrite ) { $new_rules = array("order/(.+)" => "/wp-content/plugins/my-plugin/order.php"); $wp_rewrite->rules = $new_rules + $wp_rewrite->rules; } But it doesn't work and I don't really want to get dirty with .htaccess hacking. Furthermore even if this would work, the order.php file is a separate file from my plugin. This means that I'll have to include some WordPress files in order to have access to the database and other helper classes and functions. That brings us to question number 2: is there a way for the URL to call a function of my plugin to render the order page?

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• Finding and Printing all Links within a DIV

  - by Abs

  Hello all, I am trying to find all links in a div and then printing those links. I am using the Simple HTML Dom to parse the HTML file. Here is what I have so far, please read the inline comments and let me know where I am going wrong. include('simple_html_dom.php'); $html = file_get_html('tester.html'); $articles = array(); //find the div the div with the id abcde foreach($html->find('#abcde') as $article) { //find all a tags that have a href in the div abcde foreach($article->find('a[href]') as $link){ //if the href contains singer then echo this link if(strstr($link, 'singer')){ echo $link; } } } What currently happens is that the above takes a long time to load (never got it to finish). I printed what it was doing in each loop since it was too long to wait and I find that its going through things I don't need it to! This suggests my code is wrong. The HTML is basically something like this: <div id="abcde"> <!-- lots of html elements --> <!-- lots of a tags --> <a href="singer/tom" /> <img src="image..jpg" /> </a> </div> Thanks all for any help

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• Parsing and getting specific values from CSV string

  - by Amit Ranjan

  I am having a string in CSV format. Please see my earlier question http://stackoverflow.com/questions/2865861/parsing-csv-string-and-binding-it-to-listbox I can add new values to it by some mechanism. Everything will be same except the new values will have numeric part = 0. Take example I have this exsiting CSV string 1 , abc.txt , 2 , def.doc , 3 , flyaway.txt Now by some mechanism i added two more files Superman.txt and Spiderman.txt to the existing string. Now it became 1 , abc.txt , 2 , def.doc , 3 , flyaway.txt, 0, Superman.txt, 0 , Spiderman.txt What i am doing here is that this csv string is paased into SP where its splitted and inserted to db. So for inserting I have to take the files with numeric part 0 only rest will be omiited .Which will be further then converted into CSV string Array will look like this str[0]="1" str[1]="abc.txt" str[2]="2" str[3]="def.doc " str[4]="3" str[5]="flyaway.txt" str[6]="0" str[7]="Superman.txt" str[8]="0" str[9]="Spiderman.txt" So at last i want to say my input will be 1 , abc.txt , 2 , def.doc , 3 , flyaway.txt, 0, Superman.txt, 0 , Spiderman.txt Desired Output: 0, Superman.txt, 0 , Spiderman.txt

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• Blockchain API, AJAX request has stopped working, CORS issues?

  - by Sly

  I've been playing with the multiple address look up API from blockchain info (documented here https://blockchain.info/api/blockchain_api), I had my code working earlier in the day but bizzarely it's stopped. The purpose of it is to eventually write a little JQuery library which will search the DOM for bitcoin addresses as data attributes and then insert the final balance into that element creating a polling mechanism to keep the page updated as well. The original problem I ran into earlier while developing it was because it's a CORS ajax request but later I adjusted the query per the blockchain info API documents and I added cors=true it then seemed to work fine but now it doesn't seem to want to work at all again. I don't get how changing computers would effect this kind of request. Here's my code on JSFiddle, http://jsfiddle.net/SlyFoxy12/9mr7L/7/ My primary code is: (function ($) { var methods = { init: function(data, options) { //put your init logic here. }, query_addresses: function(addresses) { var addresses_implode = addresses.join("|"); $.getJSON("http://blockchain.info/multiaddr?cors=true&active="+addresses_implode, function( data ) { $.each( data.addresses, function( index ) { $('#output').append(" "+data.addresses[index].final_balance); }); }); } }; $.fn.bitstrap = function () { var addresses = new Array(); $('[data-xbt-address]').each(function () { $(this).text($(this).data('xbtAddress')); addresses.push($(this).data('xbtAddress')); }); methods.query_addresses(addresses); } }(jQuery)); $().ready(function() { $().bitstrap(); });

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• PHP4 including file during session

  - by Matherw

  I am trying to put second language on my webpage. I decided to use different files for different languages told apart by path - language/pl/projects.ln contains Polish text, language/en/projects.ln - English. Those extensions are just to tell language files from other, the content is simple php: $lang["desc"]["fabrics"]["title"] = "MATERIALY"; $lang["desc"]["fabrics"]["short_text"] = "Jakis tam tekst na temat materialów"; $lang["desc"]["services"]["title"] = "USLUGI"; $lang["desc"]["services"]["short_text"] = "Jakis tam tekst na temat uslóg"; And then on the index page I use it like so: session_start(); if (isset($_SESSION["lang"])) { $language = $_SESSION["lang"]; } else { $language = "pl"; } include_once("language/$language/projects.ln"); print $lang["desc"]["fabrics"]["title"]; The problem is that if the session variable is not set everything works fine and array item content is displayed but once I change and set $_SESSION["lang"] nothing is displayed. I tested if the include itself works as it should by putting print "sth"; at the beginning of projects.ln file and that works all right both with $_SESSION["lang"] set and unset. Please help.

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• codeigniter & cjax framework, fatal error class 'CI_Controller' not found

  - by Martin

  I'm having this weird error with Codeigniter 2.1.3 and latest cjax for codeigniter. Weird thing is, when I download the latest codeigniter, and latest cjax framework for codeitniger and copy to my friends server, and call: domain.com/ajax.php?test/test2 to show the test ajax examples ... it works like a breeze, but when I do this on my server, I get server error (even tho, we both have same php version and such). Server then throws in error log file this error: PHP Fatal error: Class 'CI_Controller' not found in /hosting/www/domain.com/www/application/response/test.php on line 3 Now, I've read thru stackoverflow with people having this problem and solving by changing the construct and calling CI_Controller instead of Controller. But I already do that ... - I mean it's in the basic example that is suppose to work without touching the code, and it does, just not on my domain for some crappy reason. Ajax.php from cjax framework for codeingter should load controller from folder response, named test and call function test2, which looks like this (the actual file named test.php): class Test extends CI_Controller { function __construct() { parent::__construct(); } /** * * ajax.php?test/test/a/b/c * * @param unknown_type $a * @param unknown_type $b * @param unknown_type $c */ function test($a = null,$b = null, $c = null) { $this->load->view('test', array('data' => $a .' '.$b.' '.$c)); } /** * ajax.php?test/test2 * * Here we are testing out the javascript library. * * Note: the library it is not meant to be included in ajax controllers - but in front-controllers, * it is being used here for the sake of simplicity in testing. */ function test2() { $ajax = ajax(); $ajax->update('response','Cjax Works'); $ajax->append('#response','<br /><br />version: '.$ajax->version); $ajax->success('Cjax was successfully installed.', 5); //see application/views/test2.php $this->load->view('test2'); } I was hoping someone could bring some light into this problem - or maybe someone has already experienced it? Thanks for your time! Mart

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• Why RSA encryption can return different results with C# and Java?

  - by ActioN

  I using: c#: RSACryptoServiceProvider JAVA: KeyFactory.getInstance("RSA")+Cipher I sending public key (exponent + modulus) as byte array from java to c#. It's ok, there is the same bytes. But when i try to encrypt some data with one key in Java and c# - there is different results. Java Key Generation: KeyPairGenerator keyGen = KeyPairGenerator.getInstance("RSA"); keyGen.initialize( Config.CRYPTO_KEY_NUM_BITS ); m_KeyPair = keyGen.genKeyPair(); m_PublicKey = KeyFactory.getInstance("RSA").generatePublic( newX509EncodedKeySpec(m_KeyPair.getPublic().getEncoded())); byte[] exponent = m_PublicKey.getPublicExponent().toByteArray(); byte[] modulus = m_PublicKey.getModulus().toByteArray(); // then sending... C# Key Recieve: // Recieved... m_ExternKey = new RSAParameters(); m_ExternKey.Exponent = exponent; m_ExternKey.Modulus = modulus; m_RsaExtern = new RSACryptoServiceProvider(); m_RsaExtern.ImportParameters(m_ExternKey); byte[] test = m_RsaExtern.Encrypt(bytesToEncrypt, true); and problem is that encrypted bytes is different. Thank you.

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• VBS Runtime error code 800A01B6

  - by salvationishere

  I am a newbie to VBS scripting. I am getting above error on line 54, character 5 in script below. This error says "Object doesn't support this property or method: 'MimeMapArray'". And line it is referring to is: MimeMapArray(i) = CreateObject("MimeMap") Can u tell me what I am doing wrong? Here is the script in its entirety. Note, I am trying to run this on an XP OS by double-clicking this VBS file. ' This script adds the necessary Windows Presentation Foundation MIME types ' to an IIS Server. ' To use this script, just double-click or execute it from a command line. ' Running this script multiple times results in multiple entries in the IIS MimeMap. ' Set the MIME types to be added Dim MimeMapObj Dim MimeMapArray Dim WshShell Dim oExec Const ADS_PROPERTY_UPDATE = 2 Dim MimeTypesToAddArray MimeTypesToAddArray = Array(".manifest", "application/manifest", ".xaml", _ "application/xaml+xml", ".application", "application/x-ms-application", _ ".deploy", "application/octet-stream", ".xbap", "application/x-ms-xbap", _ ".xps", "application/vnd.ms-xpsdocument") ' Get the mimemap object Set MimeMapObj = GetObject("IIS://LocalHost/MimeMap") ' Call AddMimeType for every pair of extension/MIME type For counter = 0 to UBound(MimeTypesToAddArray) Step 2 AddMimeType MimeTypesToAddArray(counter), MimeTypesToAddArray(counter+1) Next ' Create a Shell object Set WshShell = CreateObject("WScript.Shell") ' Stop and Start the IIS Service Set oExec = WshShell.Exec("net stop w3svc") Do While oExec.Status = 0 WScript.Sleep 100 Loop Set oExec = WshShell.Exec("net start w3svc") Do While oExec.Status = 0 WScript.Sleep 100 Loop Set oExec = Nothing ' Report status to user WScript.Echo "Windows Presentation Foundation MIME types have been registered." ' AddMimeType Sub Sub AddMimeType(ByVal Ext, ByVal MType) ' Get the mappings from the MimeMap property. MimeMapArray = MimeMapObj.GetEx("MimeMap") ' Add a new mapping. i = UBound(MimeMapArray) + 1 ReDim Preserve MimeMapArray(i) MimeMapArray(i) = CreateObject("MimeMap") MimeMapArray(i).Extension = Ext MimeMapArray(i).MimeType = MType MimeMapObj.PutEx ADS_PROPERTY_UPDATE, "MimeMap", MimeMapArray MimeMapObj.SetInfo() End Sub

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• Why are my installed fonts not available in .NET?

  - by Dan Herbert

  I'm trying to render some images with text using a font I just added to my machine and no matter what I do, I can't seem to get the font to become accessible in .NET. I tried using PrivateFontCollection.AddFontFile(filename) and PrivateFontCollection.AddMemoryFont(...) to load the font into memory. Whenever I do this, the method throws a "File Not Found" exception, which is unusual because I get this exception when loading the font from memory, where there should be no files to be "not found". Initially, I thought it may be because the font I was trying to use was in the .pfm format, so I converted the font to .otf and had the same problem. Then I tried installing the .otf font to my Windows Fonts folder so I could pull it from FontFamily.Families. Once I installed the font, it became available in Microsoft Word & Notepad2. However, when I try to load it from FontFamily.Families, it is not included in the array. I thought rebooting my machine would fix the issue but obviously there is something more complicated involved here. Is there something basic I just might have missed when installing the font in my machine (Windows Vista), or is there another way to programmatically load a font that I should be using instead? Is .otf not supported in .NET?

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• Zend_Translate scan translation files

  - by nute

  I've trying to use Zend_Translate from Zend Framework I am using "POEdit" to generate "gettext" translation files. My files are under /www/mysite.com/webapps/includes/locale (this path is in my include path). I have: pictures.en.mo pictures.en.po (I plan on having pictures.es.mo soon) It all works fine if I manually do addTranslation() for each file. However I want to use the automatic file scanning method. I tried both of those: <?php /*Localization*/ require_once 'Zend/Translate.php'; require_once 'Zend/Locale.php'; define('LOCALE','/www/mysite.com/webapps/includes/locale'); if(!empty($_GET['locale'])){ $locale = new Zend_Locale($_GET['locale']); } else{ $locale = new Zend_Locale(); } $translate = new Zend_Translate('gettext', LOCALE, null, array('scan' => Zend_Translate::LOCALE_FILENAME)); if ( $translate->isAvailable( $locale->getLanguage() ) ){ $translate->setLocale($locale); } else{ $translate->setLocale('en'); } And this: <?php /*Localization*/ require_once 'Zend/Translate.php'; require_once 'Zend/Locale.php'; define('LOCALE','/www/mysite.com/webapps/includes/locale'); if(!empty($_GET['locale'])){ $locale = new Zend_Locale($_GET['locale']); } else{ $locale = new Zend_Locale(); } $translate = new Zend_Translate('gettext', LOCALE); if ( $translate->isAvailable( $locale->getLanguage() ) ){ $translate->setLocale($locale); } else{ $translate->setLocale('en'); } In both cases, I get a Notice: No translation for the language 'en' available. in /www/mysite.com/webapps/includes/Zend/Translate/Adapter.php on line 411 It also worked if I tried to do directory scanning.

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• How to encrypt Amazon CloudFront signature for private content access using canned policy

  - by Chet

  Has anyone using .net actually worked out how to successfully sign a signature to use with CloudFront private content? After a couple of days of attempts all I can get is Access Denied. I have been working with variations of the following code and also tried using OpenSSL.Net and AWSSDK but that does not have a sign method for RSA-SHA1 yet. The signature (data) looks like this {"Statement":[{"Resource":"http://xxxx.cloudfront.net/xxxx.jpg","Condition":?{"DateLessThan":?{"AWS:EpochTime":1266922799}}}]} This method attempts to sign the signature for use in the canned url. So of the variations have included chanding the padding used in the has and also reversing the byte[] before signing as apprently OpenSSL do it this way. public string Sign(string data) { using (SHA1Managed SHA1 = new SHA1Managed()) { RSACryptoServiceProvider provider = new RSACryptoServiceProvider(); RSACryptoServiceProvider.UseMachineKeyStore = false; // Amazon PEM converted to XML using OpenSslKey provider.FromXmlString("<RSAKeyValue><Modulus>....."); byte[] plainbytes = System.Text.Encoding.UTF8.GetBytes(data); byte[] hash = SHA1.ComputeHash(plainbytes); //Array.Reverse(sig); // I have see some examples that reverse the hash byte[] sig = provider.SignHash(hash, "SHA1"); return Convert.ToBase64String(sig); } } Its useful to note that I have verified the content is setup correctly in S3 and CloudFront by generating a CloudFront canned policy url using my CloudBerry Explorer. How do they do it? Any ideas would be much appreciated. Thanks

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• Sphinx PHP search

  - by James

  I'm doing a Sphinx search but turning up some really weird results. Any help is appreciated. So for example if I type "50", I get: 50 Cent 50 Lions 50 Foot Wave, etc. This is great, but when I search "50 Ce", I get: Ryczace Dwudziestki Spisek Bernhard Gal Cowabunga Go-Go And other crazy results. Also when I search for "50 Cent", the correct result is at the top, but then random results below. Any ideas why? PHP code: $query = $_GET['query']; if (!empty($query)) { $sphinx->SetMatchMode(SPH_MATCH_ALL); $sphinx->AddQuery($query, 'artists'); $sphinx->AddQuery($query, 'variations'); $sphinx->SetFilter('name', array(3)); $sphinx->SetLimits(0, 10); $result = $sphinx->RunQueries(); echo '<pre>'; switch ($result) { case false: echo 'Query failed: ' . $sphinx->GetLastError() . "\n"; break; default: if ($sphinx->GetLastWarning()) { echo 'WARNING: ' . $sphinx->GetLastWarning() . "\n"; } if (is_array($result[0]['matches']) && count($result[0]['matches'])) { foreach ($result[0]['matches'] as $value => $info) { $artist = artistDetails($value); echo $artist['name'] . "\n"; } } } } Sphinx Index and Source: source artists { type = mysql sql_host = localhost sql_user = user sql_pass = pass sql_db = db sql_port = 3300 sql_query = \ SELECT \ id, name \ FROM artists; #UNIX_TIMESTAMP(time) #sql_attr_uint = group_id #sql_attr_timestamp = time sql_query_info = SELECT id,name FROM artists WHERE id=$id } index artists { source = artists path = /var/sphinx/artists docinfo = extern charset_type = utf-8 }

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• vectorizing a for loop in numpy/scipy?

  - by user248237

  I'm trying to vectorize a for loop that I have inside of a class method. The for loop has the following form: it iterates through a bunch of points and depending on whether a certain variable (called "self.condition_met" below) is true, calls a pair of functions on the point, and adds the result to a list. Each point here is an element in a vector of lists, i.e. a data structure that looks like array([[1,2,3], [4,5,6], ...]). Here is the problematic function: def myClass: def my_inefficient_method(self): final_vector = [] # Assume 'my_vector' and 'my_other_vector' are defined numpy arrays for point in all_points: if not self.condition_met: a = self.my_func1(point, my_vector) b = self.my_func2(point, my_other_vector) else: a = self.my_func3(point, my_vector) b = self.my_func4(point, my_other_vector) c = a + b final_vector.append(c) # Choose random element from resulting vector 'final_vector' self.condition_met is set before my_inefficient_method is called, so it seems unnecessary to check it each time, but I am not sure how to better write this. Since there are no destructive operations here it is seems like I could rewrite this entire thing as a vectorized operation -- is that possible? any ideas how to do this?

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• Explicit Type Conversion and Multiple Simple Type Specifiers

  - by James McNellis

  To value initialize an object of type T, one would do something along the lines of one of the following: T x = T(); T x((T())); My question concerns types specified by a combination of simple type specifiers, e.g., unsigned int: unsigned int x = unsigned int(); unsigned int x((unsigned int())); Visual C++ 2008 and Intel C++ Compiler 11.1 accept both of these without warnings; Comeau 4.3.10.1b2 and g++ 3.4.5 (which is, admittedly, not particularly recent) do not. According to the C++ standard (C++03 5.2.3/2, expr.type.conv): The expression T(), where T is a simple-type-specifier (7.1.5.2) for a non-array complete object type or the (possibly cv-qualified) void type, creates an rvalue of the specified type, which is value-initialized 7.1.5.2 says, "the simple type specifiers are," and follows with a list that includes unsigned and int. Therefore, given that in 5.2.3/2, "simple-type-specifier" is singular, and unsigned and int are two type specifiers, are the examples above that use unsigned int invalid? (and, if so, the followup is, is it incorrect for Microsoft and Intel to support said expressions?) This question is more out of curiosity than anything else; for all of the types specified by a combination of multiple simple type specifiers, value initialization is equivalent to zero initialization. (This question was prompted by comments in response to this answer to a question about initialization).

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• linebreak in url with Bibtex and hyperref package

  - by Tim

  Why is this item not shown properly in my bibliography? @misc{ann, abstract = {ANN is an implbmentation of nearest neighbor search.}, author = {David M. Mount and Sunil Arya}, howpublished = {\url{http://www.cs.umd.edu/~mount/ANN/}}, keywords = {knn}, posted-at = {2010-04-08 00:05:04}, priority = {2}, title = {ANN.}, url = "http://www.cs.umd.edu/~mount/ANN/", year = {2008} } @misc{Nilsson96introductionto, author = {Nilsson, Nils J.}, citeulike-article-id = {6995464}, howpublished = {\url{http://robotics.stanford.edu/people/nilsson/mlbook.html}}, keywords = {*file-import-10-04-11}, posted-at = {2010-04-11 06:52:28}, priority = {2}, title = {Introduction to Machine Learning: An Early Draft of a Proposed Textbook.}, year = {1996} } EDIT: I am using \usepackage{hyperref}, not \usepackage{url}. I don't know what changes I just made made the first item appear properly now @misc{ann, abstract = {ANN is an implbmentation of nearest neighbor search.}, author = {David M. Mount and Sunil Arya}, howpublished = {\url{http://www.cs.umd.edu/~mount/ANN/}}, keywords = {ann}, posted-at = {2010-04-08 00:05:04}, priority = {2}, title = {The \textsc{A}pproximate \textsc{N}earest \textsc{N}eighbor \textsc{S}earching \textsc{L}ibrary.}, url = "http://www.cs.umd.edu/~mount/ANN/", year = {2008} } EDIT: Since I am using hyperref package, it produces error when using url package together with it. So the two cannot work together? I would like to use hyper links inside pdf file, so I would like to use hyperref package instead of url package. I googled a bit, and try \usepackage[hyperindex,breaklinks]{hyperref}, but there is still no line break just as before. How can I do it? Is there conflict in the packages that I am now using?: \usepackage{amsmath} \usepackage{amsfonts} \usepackage[dvips]{graphicx} \usepackage{wrapfig} \graphicspath{{./figs/}} \DeclareGraphicsExtensions{.eps} \usepackage{fixltx2e} \usepackage{array} \usepackage{times} \usepackage{fancyhdr} \usepackage{multirow} \usepackage{algorithmic} \usepackage{algorithm} \usepackage{slashbox} \usepackage{multirow} \usepackage{rotating} \usepackage{longtable} \usepackage[hyperindex,breaklinks]{hyperref} \usepackage{forloop} \usepackage{lscape} \usepackage{supertabular} \usepackage{amssymb} \usepackage{amsthm}

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• how to use a regex to search backwards effectively?

  - by Asaf

  hi, i'm searching forward in an array of strings with a regex, like this: for (int j = line; j < lines.length; j++) { if (lines[j] == null || lines[j].isEmpty()) { continue; } matcher = pattern.matcher(lines[j]); if (matcher.find(offset)) { offset = matcher.end(); line = j; System.out.println("found \""+matcher.group()+"\" at line "+line+" ["+matcher.start()+","+offset+"]"); return true; } offset = 0; } return false; note that in my implementation above i save the line and offset for continuous searches. anyway, now i want to search backwards from that [line,offset]. my question: is there a way to search backwards with a regex efficiently? if not, what could be an alternative? 10x, asaf :-) clarification: by backwards i mean finding the previous match. for example, say that i'm searching for "dana" in "dana nama? dana kama! lama dana kama?" and got to the 2nd match. if i do matcher.find() again, i'll search forward and get the 3rd match. but i want to seach backwards and get to the 1st match. the code above should then output something like: found "dana" at line 0 [0,3] // fwd found "dana" at line 0 [11,14] // fwd found "dana" at line 0 [0,3] // bwd

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• File Upload with HttpWebRequest doesn't post the file

  - by Sri Kumar

  Hello All, Here is my code to post the file. I use asp fileupload control to get the file stream. HttpWebRequest requestToSender = (HttpWebRequest)WebRequest.Create("http://localhost:2518/Web/CrossPage.aspx"); requestToSender.Method = "POST"; requestToSender.ContentType = "multipart/form-data"; requestToSender.KeepAlive = true; requestToSender.Credentials = System.Net.CredentialCache.DefaultCredentials; requestToSender.ContentLength = BtnUpload.PostedFile.ContentLength; BinaryReader binaryReader = new BinaryReader(BtnUpload.PostedFile.InputStream); byte[] binData = binaryReader.ReadBytes(BtnUpload.PostedFile.ContentLength); Stream requestStream = requestToSender.GetRequestStream(); requestStream.Write(binData, 0, binData.Length); requestStream.Close(); HttpWebResponse responseFromSender = (HttpWebResponse)requestToSender.GetResponse(); string fromSender = string.Empty; using (StreamReader responseReader = new StreamReader(responseFromSender.GetResponseStream())) { fromSender = responseReader.ReadToEnd(); } XMLString.Text = fromSender; In the page load of CrossPage.aspx i have the following code NameValueCollection postPageCollection = Request.Form; foreach (string name in postPageCollection.AllKeys) { Response.Write(name + " " + postPageCollection[name]); } HttpFileCollection postCollection = Request.Files; foreach (string name in postCollection.AllKeys) { HttpPostedFile aFile = postCollection[name]; aFile.SaveAs(Server.MapPath(".") + "/" + Path.GetFileName(aFile.FileName)); } string strxml = "sample"; Response.Clear(); Response.Write(strxml); I don't get the file in Request.Files. The byte array is created. What was wrong with my HttpWebRequest?

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• Complex regex question, data may or may not be in brackets

  - by martinpetts

  I need to extract data from a source that presents it in one of two ways. The data could be formatted like this: Francis (Lab) 18,077 (60.05%); Waller (LD) 4,140 (13.75%); Evans (PC) 3,545 (11.78%); Rees-Mogg (C) 3,064 (10.18%); Wright (Veritas) 768 (2.55%); La Vey (Green) 510 (1.69%) Or like this: Lab 8,994 (33.00%); C 7,924 (29.07%); LD 5,197 (19.07%); PC 3,818 (14.01%); Others 517 (1.90%); Green 512 (1.88%); UKIP 296 (1.09%) The data I need to extract is the percentage and the party (these are election results), which is either in brackets (first example) or is the only non-numeric text. So far I have this: preg_match('/(.*)\(([^)]*)%\)/', $value, $match); Which is giving me the following matches (for first example): Array ( [0] => Francis (Lab) 18,077 (60.05%) [1] => Francis (Lab) 18,077 [2] => 60.05 ) So I have the percentage, but I also need the party label, which may or may not be in brackets and may or may not be the only text. Can anyone help?

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• How to parse SOAP response from ruby client?

  - by Richard O'Neil

  Hi I am learning Ruby and I have written the following code to find out how to consume SOAP services: require 'soap/wsdlDriver' wsdl="http://www.abundanttech.com/webservices/deadoralive/deadoralive.wsdl" service=SOAP::WSDLDriverFactory.new(wsdl).create_rpc_driver weather=service.getTodaysBirthdays('1/26/2010') The response that I get back is: #<SOAP::Mapping::Object:0x80ac3714 {http://www.abundanttech.com/webservices/deadoralive} getTodaysBirthdaysResult=#<SOAP::Mapping::Object:0x80ac34a8 {http://www.w3.org/2001/XMLSchema}schema=#<SOAP::Mapping::Object:0x80ac3214 {http://www.w3.org/2001/XMLSchema}element=#<SOAP::Mapping::Object:0x80ac2f6c {http://www.w3.org/2001/XMLSchema}complexType=#<SOAP::Mapping::Object:0x80ac2cc4 {http://www.w3.org/2001/XMLSchema}choice=#<SOAP::Mapping::Object:0x80ac2a1c {http://www.w3.org/2001/XMLSchema}element=#<SOAP::Mapping::Object:0x80ac2774 {http://www.w3.org/2001/XMLSchema}complexType=#<SOAP::Mapping::Object:0x80ac24cc {http://www.w3.org/2001/XMLSchema}sequence=#<SOAP::Mapping::Object:0x80ac2224 {http://www.w3.org/2001/XMLSchema}element=[#<SOAP::Mapping::Object:0x80ac1f7c>, #<SOAP::Mapping::Object:0x80ac13ec>, #<SOAP::Mapping::Object:0x80ac0a28>, #<SOAP::Mapping::Object:0x80ac0078>, #<SOAP::Mapping::Object:0x80abf6c8>, #<SOAP::Mapping::Object:0x80abed18>] >>>>>>> {urn:schemas-microsoft-com:xml-diffgram-v1}diffgram=#<SOAP::Mapping::Object:0x80abe6c4 {}NewDataSet=#<SOAP::Mapping::Object:0x80ac1220 {}Table=[#<SOAP::Mapping::Object:0x80ac75e4 {}FullName="Cully, Zara" {}BirthDate="01/26/1892" {}DeathDate="02/28/1979" {}Age="(87)" {}KnownFor="The Jeffersons" {}DeadOrAlive="Dead">, #<SOAP::Mapping::Object:0x80b778f4 {}FullName="Feiffer, Jules" {}BirthDate="01/26/1929" {}DeathDate=#<SOAP::Mapping::Object:0x80c7eaf4> {}Age="81" {}KnownFor="Cartoonists" {}DeadOrAlive="Alive">]>>>> I am having a great deal of difficulty figuring out how to parse and show the returned information in a nice table, or even just how to loop through the records and have access to each element (ie. FullName,Age,etc). I went through the whole "getTodaysBirthdaysResult.methods - Object.new.methods" and kept working down to try and work out how to access the elements, but then I get to the array and I got lost. Any help that can be offered would be appreciated.

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