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• What is a good Very-High level UI framework for JavaScript?

  - by Robert Gould

  I need to write a temporary Web-based graphical front-end for a custom server system. In this case performance and scalability aren't issues, since at most 10 people may check the system simultaneously. Also it should be PHP or Python (server) & JavaScript (client) (can't use Flex or Silverlight for very specific non-programming related issues). So I know I could use YUI or jQuery, but was wondering if there is something even more high-level that would say allow me to write such a little project within a few hours of work, and get done with it. Basically I want to be as lazy as possible (this is throw-away code anyways) and get the job done in as little time as possible. Any suggestions?

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• PHP upload file using PUT instead of POST

  - by Marco Demaio

  I read something about this on PHP docs, but it's not celar to me: Do the most widely used browsers (IE, FF, Chrome, Safari, Opera, ...) support this PUT method to uplaod files? What HTML should I write to make the browser call the server via PUT request. I mean do I need to write a FORM with an INPUT file field and just replace the attribute method="POST" with the method="PUT"? On the PHP docs (link above) they say a PUT request is much simplier than a POST request when uploading file, along with this advantage, what other advantages/disadvanatges do the PUT has comapred to teh POST? Thanks!

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• Linux: Ways to communicate with kernel module from user space.

  - by Inso Reiges

  Hello, What are the ways to communicate with a kernel module from user space? By communication i mean sending information and commands between the module and a user space process. I currently know of two way: open/close/read/write/ioctl on published device node. read/write on exported and hooked /proc file. More specifically, can someone advice the best way to communicate with a kernel module that does not actually drives any hardware and therefore should not be littering /dev with stub nodes that exists solely for ioctl calls? I mostly need to check its various status variables and send it a block of data with a request type tag and see if the request succeeded. Inso.

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• How to impose maxlength on textArea in HTML , Javascript

  - by Rakesh Juyal

  I would like to have some functionality by which if i write <textarea maxlength="50"></textarea> <textarea maxlength="150"></textarea> <textarea maxlength="250"></textarea> it will automatically impose the maxlength on the textArea. If possible please donot provide the solution in JQuery. Note: This can be done if i do something like this: <textarea onkeypress="return imposeMaxLength(event, this, 110);" rows="4" cols="50"> function imposeMaxLength(Event, Object, MaxLen) { return (Object.value.length <= MaxLen)||(Event.keyCode == 8 ||Event.keyCode==46||(Event.keyCode>=35&&Event.keyCode<=40)) } copied from another thread But the point is I don't want to write onKeyPress and onKeyUp every time i declare a textArea.

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• Choosing a Wiki for a institute

  - by abhishekgupta92

  I need to choose a Wiki. Please someone help. Following are my requirements: 1) Need good control to the access variables 2) LDAP integration support 3) User Group Support 4) Good Themes and Templates Mediawiki has the problem that it does not support Users Groups that intutively. Twiki and Foswiki have a problem that any authenticated user that has write permissions for a topic also have the write to change the particualar permissions for the topic. Else, can someone suggest me where to look for the answer. I know about the WikiMatrix.

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• run program multiple times using one line shell command

  - by teehoo

  I have the following gifs on my linux system: $ find . -name *.gif ./gifs/02.gif17.gif ./gifs/fit_logo_en.gif ./gifs/halloween_eyes_63.gif ./gifs/importing-pcs.gif ./gifs/portal.gif ./gifs/Sunflower_as_gif_small.gif ./gifs/weird.gif ./gifs2/00p5dr69.gif ./gifs2/iss013e48788.gif ...and so on What I have written is a program that converts GIF files to BMP with the following interface: ./gif2bmp -i inputfile -o outputfile My question is, is it possible to write a one line command using xargs, awk, find etc. to run my program once for each one of these files? Or do I have to write a shell script with a loop?

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• Files written with FileWriter are either 32 KB, 24 KB, 16 KB, ... big or empty

  - by Bernhard V

  Hi, I read a file into a string, change the first line and then write this string into a new file. I do this through the following code (a little bit shortened): while(jspIterator.hasNext()){ String line = (String) jspIterator.next(); if (i == 0) { if (line.startsWith("bla bla") && line.endsWith("yada")) { line = line.replaceFirst("this", "that"); } } jspAsString += line; i++; } FileWriter newJspWriter = new FileWriter(newJspFile); newJspWriter.write(jspAsString); Now the files written this way are either 32, 24, 16, 8 KByte big or completely empty. When debugging I see that the String is assembled correctly. When I print the variable jspAsString to the console it also appears correct. Do you know why FileWriter behaves this way?

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• Java preferences API throughput

  - by Domchi

  I'm using Java Preferences API to store window position and size of Swing application. At this moment, I'm listening to window resize/reposition events and storing the position and size every time they change. However, that means that if user slowly resizes window which is 200px wide to 400px wide, I'll probably write new window size about 200 times during pretty short time. Preferences API uses whichever datastore is available on the host system (windows registry for Windows etc.) - but the question is, what are limitations or best practices for properties API? Is it OK, or would it be smart to write only when user has finished resizing? Anyone had experiences with Properties API on different platforms?

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• Why does the following Java Script fail to load XML?

  - by Pavitar

  I have taken an example taught to us in class,wherein a javascript is used to retrieve data from the XML,but it doesn't work.Please help I have also added the XML file below. <html> <head> <title>Customer Info</title> <script language="javascript"> var xmlDoc = 0; var xmlObj = 0; function loadCustomers(){ xmlDoc = new ActiveXObject("Microsoft.XMLDOM"); xmlDoc.async = "false"; xmlDoc.onreadystatechange = displayCustomers; xmlDoc.load("customers.xml"); } function displayCustomers(){ if(xmlDoc.readyState == 4){ xmlObj = xmlDoc.documentElement; var len = xmlObj.childNodes.length; for(i = 0; i < len; i++){ var nodeElement = xmlObj.childNodes[i]; document.write(nodeElement.attributes[0].value); for(j = 0; j < nodeElement.childNodes.length; j++){ document.write(" " + nodeElement.childNodes[j].firstChild.nodeValue); } document.write("<br/>"); } } } </script> </head> <body> <form> <input type="button" value="Load XML" onClick="loadCustomers()"> </form> </body> </html> XML(customers.xml) <?xml version="1.0" encoding="UTF-8"?> <customers> <customer custid="CU101"> <pwd>PW101</pwd> <email>[email protected]</email> </customer> <customer custid="CU102"> <pwd>PW102</pwd> <email>[email protected]</email> </customer> <customer custid="CU103"> <pwd>PW103</pwd> <email>[email protected]</email> </customer> <customer custid="CU104"> <pwd>PW104</pwd> <email>[email protected]</email> </customer> </customers>

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• How to learn proper C++?

  - by Chris

  While reading a long series of really, really interesting threads, I've come to a realization: I don't think I really know C++. I know C, I know classes, I know inheritance, I know templates (& the STL) and I know exceptions. Not C++. To clarify, I've been writing "C++" for more than 5 years now. I know C, and I know that C and C++ share a common subset. What I've begun to realize, though, is that more times than not, I wind up treating C++ something vaguely like "C with classes," although I do practice RAII. I've never used Boost, and have only read up on TR1 and C++0x - I haven't used any of these features in practice. I don't use namespaces. I see a list of #defines, and I think - "Gracious, that's horrible! Very un-C++-like," only to go and mindlessly write class wrappers for the sake of it, and I wind up with large numbers (maybe a few per class) of static methods, and for some reason, that just doesn't seem right lately. The professional in me yells "just get the job done," the academic yells "you should write proper C++ when writing C++" and I feel like the point of balance is somewhere in between. I'd like to note that I don't want to program "pure" C++ just for the sake of it. I know several languages. I have a good feel for what "Pythonic" is. I know what clean and clear PHP is. Good C code I can read and write better than English. The issue is that I learned C by example, and picked up C++ as a "series of modifications" to C. And a lot of my early C++ work was creating class wrappers for C libraries. I feel like my own personal C-heavy background while learning C++ has sort of... clouded my acceptance of C++ in it's own right, as it's own language. Do the weathered C++ lags here have any advice for me? Good examples of clean, sharp C++ to learn from? What habits of C does my inner-C++ really need to break from? My goal here is not to go forth and trumpet "good" C++ paradigm from rooftops for the sake of it. C and C++ are two different languages, and I want to start treating them that way. How? Where to start? Thanks in advance! Cheers, -Chris

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• Exporting data from a gridview to different excel worksheets

  - by Alex

  I am binding data from a dataset to a grid and exporting data from the grid to an excel.if the the number of items in the grid is greater than 50000,an error message is displayed. So i want to split the data and display it in different worksheets in excel.(Am working in a web application) using this code for exporting to excel gvExcel.DataSource = DTS; gvExcel.DataBind(); Response.AddHeader("content-disposition", "attachment; filename= filename.xls"); Response.ContentType = "application/excel"; StringWriter sw = new StringWriter(); HtmlTextWriter htw = new HtmlTextWriter(sw); gvExcel.RenderControl(htw); // Style is added dynamically Response.Write(style); Response.Write(sw.ToString()); Response.End(); Can anyone help me on this??

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• Why I get different date formats when I run my application through IIS and Visual Studio's web serve

  - by Puneet Dudeja

  I get the same culture i.e. "en-US" while running the website from both IIS and Visual Studio's web server. But I get a different date format as follows, when I run the following code: HttpContext.Current.Response.Write(System.Threading.Thread.CurrentThread.CurrentCulture.ToString()); HttpContext.Current.Response.Write(System.Threading.Thread.CurrentThread.CurrentCulture.DateTimeFormat.ShortDatePattern); On Visual Studio's web server: dd/MM/yyyy en-US On IIS: M/d/yyyy en-US Does "Regional and Language Options" in "Control Panel" play any role in this ? If I change the date format there in "Regional and Language Options", I see no effect in my application.

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• How to use soap in javascript

  - by fresher

  Hi guys, I am trying to use SOAP in javascript but i am not getting how to start it. Here is the code sample i write in PHP and it works fine. I want to write this code in Javascript. In following code i call one api from a www.example.com and for calling certain api we require to pass some parameters. $soapClient = new SoapClient("https://www.example.com/abc.aspx?WSDL"); // Prepare SoapHeader parameters $param_sh = array( ); $header = new SoapHeader('http://somesite.com/action/', 'user_credential', $param_sh); // Prepare Soap Client $soapClient->__setSoapHeaders(array($header)); // Setup the RemoteFunction parameters $param = array( "pwd" => "password", "id" => "name" ); // Call RemoteFunction () $contents = $soapClient->__call("name_of_api",array($param)); print_r($contents); Thanx in advance!!!

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• Confused with conditional and logical operators - VB.net

  - by AgentRev

  I'm kind of new to VB.net, and since I just finished a C# course, the lack of parentheses creates a lot of confusion on how to write certain combinations of operators. The C# equivalent of the line I am trying to reproduce in VB would be like this : if ( (a == 0 && b != null) || (a == 1 && c != null) ) I'm have no idea how to write this in VB, I've tried many combinations of And, Or, AndAlso, OrElse, etc. but I can't achieve the desired result. I can't find any clear example of C# v.s. VB.net comparison on operators, and the notes I have aren't helpful either. Can someone help me figure this out?

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• How to extract delegates from ViewController class?

  - by adranle

  Hi I have the problem that my view controller class has too many delegates and starts to get big. I want to write the delegates in separate classes to keep the view controller class small. For delegates that are programmatically created (like UIAlertViewDelegate) I could do it easily. The problem is in the delegates assigned in Interface Builder. How can I tell the IB to assign, for example, another class as the UITableViewDelegate or UITableViewDataSource? Or how to choose another IBAction method for a Touch UP inside Event on a button? One solution would be to delete the connections from IB and write them programmatically at ViewDidLoad, but since I have a lot of ViewControllers, this would take a long time. any other ideas?

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• Is there a way to rollback and exit a psql script on error?

  - by metanaito

  I have a psql script that looks like this: -- first set of statements begin sql statement; sql statement; sql statement; exception when others then rollback write some output (here I want to exit the entire script and not continue on to the next set of statements) end / -- another set of statements begin sql statement; sql statement; sql statement; exception when others then rollback write some output (here I want to exit the entire script and not continue) end / ... and so on Is it possible to exit the script and stop processing the rest of the script?

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• mysql: select ... where id = any value. is it possible?

  - by Syom

  look at this table please table |id| |name| |order| i must get the rows, where name = something and order = somevalue so i write select `id` from `table` where `name` = 'something' and `order` = 'somevalue' but depend on php logic, sometimes i need to get all rows, where name = somethimg, independently of order value. i don't want to change the query structure, because in practise there are many number of fields, and possible count of queries will became very big. so i want to save the structure of query, and when i need to select just by name, i want to write something like this select `id` from `table` where `name` = 'something' and `order` = any value is it possible? maybe the question is incomprehensible, at least i tried;) sorry for bad english thanks

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• Grid View To Excel

  - by rahulchandran

  Hi I am trying to convert the contents of a grid View to an excel file and I am doing it using this code string attachment = "attachment; filename= " + FileName; Response.ClearContent(); Response.AddHeader("content-disposition", attachment); Response.ContentType = "application/excel"; StringWriter sw = new StringWriter(); HtmlTextWriter htw = new HtmlTextWriter(sw); gv.RenderControl(htw); Response.Write(sw.ToString()); Response.End(); The problem is I am getting some sort of html in an excel style format , theres java script in the page links etc what I want is to turn the results of my query into a comma seperated file Is that do-able for free or do I have to run the query myself get the data and write out a csv stream Thanks

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• How can I implement incremental (find-as-you-type) search on command line?

  - by florianbw

  I'd like to write small scripts which feature incremental search (find-as-you-type) on the command line. Use case: I have my mobile phone connected via USB, Using gammu --sendsms TEXT I can write text messages. I have the phonebook as CSV, and want to search-as-i-type on that. What's the easiest/best way to do it? It might be in bash/zsh/Perl/Python or any other scripting language. Edit: Solution: Modifying Term::Complete (http://search.cpan.org/~jesse/perl-5.12.0/lib/Term/Complete.pm) did what I want. See below for the answer.

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• Are indivisible operations still indivisible on multiprocessor and multicore systems?

  - by Steve314

  As per the title, plus what are the limitations and gotchas. For example, on x86 processors, alignment for most data types is optional - an optimisation rather than a requirement. That means that a pointer may be stored at an unaligned address, which in turn means that pointer might be split over a cache page boundary. Obviously this could be done if you work hard enough on any processor (picking out particular bytes etc), but not in a way where you'd still expect the write operation to be indivisible. I seriously doubt that a multicore processor can ensure that other cores can guarantee a consistent all-before or all-after view of a written pointer in this unaligned-write-crossing-a-page-boundary situation. Am I right? And are there any similar gotchas I haven't thought of?

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• Facebook app: Using Flex or JQuery

  - by javanes

  Hello; I am about to start a new project, a facebook app. There are two alternatives for client-side in my mind. Write Flex-Facebook app. Or write html with Ajax and Jquery. So what are your opinion, which do you recommend? What are the issues about each to take into account? Advantages, disadvantages, subjective opinion? Thank you help me decide..

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• How do I get user input into a PackageMaker package?

  - by Brian Postow

  I'm trying to create an install package. I've got all my components, and I think I understand most of the process. I want to have an install/set-up script that is run as part of the install. I planned to put it either as a post-install action or a post-install script. The problem is that I need user-input. I can't figure out how to either get user input into the script, or how to add a page in the install UI that has a place for user input and then pass that on to the script. I guess, I could write an apple-script with a dialog to ask the question, and then pass that information on to my shell script (or, write the whole thing in the applescript) but that seems unnecessarily complicated... Is there a normal way to do this? Thanks

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• Cakephp Localization, Cannot Change language when DEFAULT_LANGUAGE is set

  - by ion

  I am confused :) I'm using the p18n component in cakephp found here: http://www.palivoda.eu/2008/04/i18n-in-cakephp-12-database-content-translation-part-2/ This component requires me to set in core.php the following constant: define("DEFAULT_LANGUAGE", 'eng') However when this is set I cannot change the language using: Configure::write('Config.language', 'eng'); At the moment, into my knowledge, the only way to change the locale of my static content is the use of the Configure::write. But for the dynamic content to change through the use of the p28n component I must have the DEFINE_LANGUAGE constant set to a value. This is all very confusing. Any help will be much appreciated.

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• I asked this yesterday, after the input given I'm still having trouble implementing..

  - by Josh

  I'm not sure how to fix this or what I did wrong, but whenever I enter in a value it just closes out the run prompt. So, seems I do have a problem somewhere in my coding. Whenever I run the program and input a variable, it always returns the same answer.."The content at location 76 is 0." On that note, someone told me that "I don't know, but I suspect that Program A incorrectly has a fixed address being branched to on instructions 10 and 11." - mctylr but I'm not sure how to fix that.. I'm trying to figure out how to incorporate this idea from R Samuel Klatchko.. I'm still not sure what I'm missing but I can't get it to work.. const int OP_LOAD = 3; const int OP_STORE = 4; const int OP_ADD = 5; ... const int OP_LOCATION_MULTIPLIER = 100; mem[0] = OP_LOAD * OP_LOCATION_MULTIPLIER + ...; mem[1] = OP_ADD * OP_LOCATION_MULTIPLIER + ...; operand = memory[ j ] % OP_LOCATION_MULTIPLIER; operation = memory[ j ] / OP_LOCATION_MULTIPLIER; I'm new to programming, I'm not the best, so I'm going for simplicity. Also this is an SML program. Anyway, this IS a homework assignment and I'm wanting a good grade on this. So I was looking for input and making sure this program will do what I'm hoping they are looking for. Anyway, here are the instructions: Write SML (Simpletron Machine language) programs to accomplish each of the following task: A) Use a sentinel-controlled loop to read positive number s and compute and print their sum. Terminate input when a neg number is entered. B) Use a counter-controlled loop to read seven numbers, some positive and some negative, and compute + print the avg. C) Read a series of numbers, and determine and print the largest number. The first number read indicates how many numbers should be processed. Without further a due, here is my program. All together. int main() { const int READ = 10; const int WRITE = 11; const int LOAD = 20; const int STORE = 21; const int ADD = 30; const int SUBTRACT = 31; const int DIVIDE = 32; const int MULTIPLY = 33; const int BRANCH = 40; const int BRANCHNEG = 41; const int BRANCHZERO = 41; const int HALT = 43; int mem[100] = {0}; //Making it 100, since simpletron contains a 100 word mem. int operation; //taking the rest of these variables straight out of the book seeing as how they were italisized. int operand; int accum = 0; // the special register is starting at 0 int j; // This is for part a, it will take in positive variables in a sent-controlled loop and compute + print their sum. Variables from example in text. memory [0] = 1010; memory [01] = 2009; memory [02] = 3008; memory [03] = 2109; memory [04] = 1109; memory [05] = 4300; memory [06] = 1009; j = 0; //Makes the variable j start at 0. while ( true ) { operand = memory[ j ]%100; // Finds the op codes from the limit on the memory (100) operation = memory[ j ]/100; //using a switch loop to set up the loops for the cases switch ( operation ){ case 10: //reads a variable into a word from loc. Enter in -1 to exit cout <<"\n Input a positive variable: "; cin >> memory[ operand ]; break; case 11: // takes a word from location cout << "\n\nThe content at location " << operand << "is " << memory[operand]; break; case 20:// loads accum = memory[ operand ]; break; case 21: //stores memory[ operand ] = accum; break; case 30: //adds accum += mem[operand]; break; case 31: // subtracts accum-= memory[ operand ]; break; case 32: //divides accum /=(memory[ operand ]); break; case 33: // multiplies accum*= memory [ operand ]; break; case 40: // Branches to location j = -1; break; case 41: //branches if acc. is < 0 if (accum < 0) j = 5; break; case 42: //branches if acc = 0 if (accum == 0) j = 5; break; case 43: // Program ends exit(0); break; } j++; } return 0; }

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• php java in memory database

  - by msaif

  i need to load data as array to memory in PHP.but in PHP if i write $array= array("1","2"); in test.php then this $array variable is initialized every time user requests.if we request test.php 100 times by clicking 100 times browser refresh button then this $array variable will be executed 100 times. but i need to execute the $array variable only one time for first time request and subsequent request of test.php must not execute the $array variable.but only use that memory location.how can i do that in PHP. but in JAVA SEVRVLET it is easy to execute,just write the $array variable in one time execution of init() method of servlet lifecycle method and subsequent request of that servlet dont execute init() method but service() method but service() method always uses that $array memeory location. all i want to initilize $array variable once but use that memory loc from subsequent request in PHP.is there any possiblity in PHP?

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