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  • How do I lex this input?

    - by etheros
    I currently have a working, simple language implemented in Java using ANTLR. What I want to do is embed it in plain text, in a similar fashion to PHP. For example: Lorem ipsum dolor sit amet <% print('consectetur adipiscing elit'); %> Phasellus volutpat dignissim sapien. I anticipate that the resulting token stream would look something like: CDATA OPEN PRINT OPAREN APOS STRINGAPOS CPARENT SEMI CLOSE CDATA How can I achieve this, or is there a better way?

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  • jquery use of :last and val()

    - by dole doug
    I'm trying to run the code from http://jsfiddle.net/ddole/AC5mP/13/ on my machine and the approach I've use is below or here. Do you know why that code doesn't work on my machine. Firebug doesn't help me and I can't solve the problem. I think that I need another pair of eyes :((( <!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <title>jQuery UI Dialog - Modal form</title> <link type="text/css" href="css/ui-lightness/jquery-ui-1.8.21.custom.css" rel="stylesheet" /> <script type="text/javascript" src="js/jquery-1.7.2.min.js"></script> <script type="text/javascript" src="js/jquery-ui-1.8.21.custom.min.js"></script> <script type="text/javascript" > jQuery(function($) { $('.helpDialog').hide(); $('.helpButton').each(function() { $.data(this, 'dialog', $(this).next('.helpDialog').dialog({ autoOpen: false, modal: true, width: 300, height: 250, buttons: { "Save": function() { alert($('.helpText:last').val()); $(this).dialog( "close" ); }, Cancel: function() { $(this).dialog( "close" ); } } }) ); }).click(function() { $.data(this, 'dialog').dialog('open'); return false; }); }); </script> </head> <body> <span class="helpButton">Button</span> <div class="helpDialog"> <input type="text" class="helpText" /> </div> <span class="helpButton">Button 2</span> <div class="helpDialog"> <input type="text" class="helpText" /> </div> <span class="helpButton">Button 3</span> <div class="helpDialog"> <input type="text" class="helpText" /> </div> <span class="helpButton">Button 4</span> <div class="helpDialog"> <input type="text" class="helpText" /> </div> <span class="helpButton">Button 5</span> <div class="helpDialog"> <input type="text" class="helpText" /> </div> </body>

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  • System.Web.UI not available in console app?

    - by Walter
    Hey everybody, Im trying to write a quick console app that outputs data to an HTML file, however im having trouble accessing the System.Web.UI namespace. Adding System.Web to my references places a warning icon on top of the reference name in the solution explorer and System.Web is not available in the .NET reference list (in order for me to actually add it to the project I have to go to the object browser and add it from there). Anybody have any ideas about what I could be missing? Thanks alot people!

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  • Force users to recache url

    - by Ni Le
    I had a setting in my domain controller to redirect my domain that another domain. Example http://mysite.com redirected to http://othersite.com I removed the redirect about one week ago, but some users still seeing the redirect http://othersite.com rather than http://mysite.com. Clearing the browser cache fixes the problem. Is there are way I can force users to update their cache when they go to my site?

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  • How do I add "Press any key to boot from usb" when installing Windows from a flash drive? (Grub4dos question / how to remove a bootloader)

    - by Vincent
    Hi there! I've been struggling with this problem for a while now and finially decided to ask for help. Let me first explain what the main purpose of the app is: to provide the a very easy to use way of backing up files, after which I format the drive and start Windows 7 setup. I do this by booting WinPE, which runs a script to detect Windows installations and then opens a file browser. After the file browser is closed, the script continues and formats the drive that contains the Windows installation, and starts an unattended Windows 7 install. Now here is the problem: When you start Windows setup or WinPE from a dvd, you get a nice option to "Press any key to boot from DVD". This is to prevent the computer from booting the DVD when the first phase of the installation is complete and the computer reboots. However, when booting from a flash drive, Windows does not provide this option: it simply boots the flash drive every reboot. To replicate the "press any key" function, I installed Grub4Dos, which works great. It provides a small menu, the first standard item being "Continue installation", the second being "start installation". After quite a lot of tweaking, I got everything working: Start installation starts WinPE, which in turn starts the Windows installation. At first reboot, the Grub4Dos menu comes up, counts 5 seconds and boots the second stage of the installation. Here, I am greeted with the error: "Windows setup could not configure windows to run on this computer's hardware." When I boot into WinPE the normal way (put the bootmgr on the stick root) and change my bios to boot from the primary hdd after first reboot, I don't get this error. I've been looking around, and the only thing I could find was that the BIOS automatically names the boot device hd0, and that Windows can only be run / installed to hd 0. I'm not sure if this is the problem. I read about remapping to solve this problem, but to do that you have to know the phisical location of the hard drive and partition, like hd(0,1). I want this flash drive to work on any PC, regardless of where the OS is installed, so that's not really a possibility. A possible fix I thought of is removing the bootloader from the flash drive when I'm in WinPE. That way, when the pc reboots the BIOS will not see the flash drive as a boot drive and instead boot the primary hdd. I have yet to find a way to do this. Thank you for reading my question, and if you have any suggestion, please do.

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  • Responsive grid, floated elements move underneath one another when min-width is reached

    - by Francesca
    I'm in the process of creating a responsive site (currently only working on the main content.) I've created two floated divs with percentage based widths. One contains an image which resizes with the browser resizing. The image has a min-width of 100px. Can anyone tell me why when put into a mobile sized width it doesn't drop down? How can I make the image stack underneath the text? JS Fiddle Live site

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  • Change video being played in HTML5 video

    - by Krt_Malta
    Hi! I'm using the tags in HTML5 to play a video on a web browser... (and I'm very impressed with this new feature) Is there the functionality to change the video being played through Javascript? Say when I select another video from a list, a Javascript function would be called which would contain something on the lines of MyVideo.VideoLocation = //location of new video to be played. Is this possible please? Thanks and regards, Krt_Malta

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  • file output in python giving me garbage

    - by Richard
    When I write the following code I get garbage for an output. It is just a simple program to find prime numbers. It works when the first for loops range only goes up to 1000 but once the range becomes large the program fail's to output meaningful data output = open("output.dat", 'w') for i in range(2, 10000): prime = 1 for j in range(2, i-1): if i%j == 0: prime = 0 j = i-1 if prime == 1: output.write(str(i) + " " ) output.close() print "writing finished"

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  • Applying a partial gaussian like blur to a background image

    - by Andy
    I have and image which gets stretched to its full background, regardless of the monitor size. What i need to do is apply cross-browser blur above this image on only a portion of the left hand side. So it gives the appearance of a blur on the image. If i apply it to the image then when the screen resolution changes size so does the size of the blur. Any help would be great. Cheers

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  • PDF printing in java

    - by Julia
    Hello, is there a way to print pdf files from a java webapplication on the local printer of the end user (connected via vpn)? The simple lookup of a printer via Java Printing Service always returns printer which are not able to print pdfs. Are there other libs which can be used for printing in java? By the way, just opening the pdf in the browser is not an option, though it must be possible to run scheduled batch printing without user interaction. Thanks in advance

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  • How much time do PHP/Python/Ruby *programmers* spend on CSS?

    - by gavin
    Not sure about you guys, but I detest working in CSS. Not that it is a bad language/markup, don't get me wrong. I just hate spending hours figuring out how to get 5 pixels to show on every browser, and getting fonts to look like a PSD counterpart. So a question (or two) for programmers out there. How much time (%) do you spend on web markup? Do you tend to do this type of tweaking, or do your designers?

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  • Question about DispatcherUnhandledException

    - by Diego Pacheco
    The problem in this code is that when it's run and I push "Yes" button, This is shown: This means that my application stopped working, I just want it to end. private void App_DispatcherUnhandledException(object sender, DispatcherUnhandledExceptionEventArgs e) { string message = "An unhandled exception has ocurred, do you want close the app?"; MessageBoxResult currentMB = MessageBox.Show(message, "SomeTitleApp", MessageBoxButton.YesNo, MessageBoxImage.Exclamation); if (currentMB == MessageBoxResult.Yes) { Application.Current.Shutdown(); } else { e.Handled = true; } }

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  • Is it possible in .NET to set the local endpoint (IP address) when using webclient to consume a web

    - by Tom
    I'm wondering if it is possible using .NET to call a remote web service and in effect specify which IP the call is made on. I'm consuming a service that limits the number of calls I can make based on IP. The service costs in the 20k range after the free limit is used up. I'm very close to enough calls but not quite there using the free service. My server has 3 IP so I could in effect triple the number of calls I could make to the remote service by changing the IP.

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  • A question about making a C# class persistent during a file load

    - by Adam
    Apologies for the indescriptive title, however it's the best I could think of for the moment. Basically, I've written a singleton class that loads files into a database. These files are typically large, and take hours to process. What I am looking for is to make a method where I can have this class running, and be able to call methods from within it, even if it's calling class is shut down. The singleton class is simple. It starts a thread that loads the file into the database, while having methods to report on the current status. In a nutshell it's al little like this: public sealed class BulkFileLoader { static BulkFileLoader instance = null; int currentCount = 0; BulkFileLoader() public static BulkFileLoader Instance { // Instanciate the instance class if necessary, and return it } public void Go() { // kick of 'ProcessFile' thread } public void GetCurrentCount() { return currentCount; } private void ProcessFile() { while (more rows in the import file) { // insert the row into the database currentCount++; } } } The idea is that you can get an instance of BulkFileLoader to execute, which will process a file to load, while at any time you can get realtime updates on the number of rows its done so far using the GetCurrentCount() method. This works fine, except the calling class needs to stay open the whole time for the processing to continue. As soon as I stop the calling class, the BulkFileLoader instance is removed, and it stops processing the file. What I am after is a solution where it will continue to run independently, regardless of what happens to the calling class. I then tried another approach. I created a simple console application that kicks off the BulkFileLoader, and then wrapped it around as a process. This fixes one problem, since now when I kick off the process, the file will continue to load even if I close the class that called the process. However, now the problem I have is that cannot get updates on the current count, since if I try and get the instance of BulkFileLoader (which, as mentioned before is a singleton), it creates a new instance, rather than returning the instance that is currently in the executing process. It would appear that singletons don't extend into the scope of other processes running on the machine. In the end, I want to be able to kick off the BulkFileLoader, and at any time be able to find out how many rows it's processed. However, that is even if I close the application I used to start it. Can anyone see a solution to my problem?

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  • How do I detect server status in a port scanner java implementation

    - by akz
    I am writing a port scanner in Java and I want to be able to distinct the following 4 use cases: port is open port is open and server banner was read port is closed server is not live I have the following code: InetAddress address = InetAddress.getByName("google.com"); int[] ports = new int[]{21, 22, 23, 80, 443}; for (int i = 0; i < ports.length; i++) { int port = ports[i]; Socket socket = null; try { socket = new Socket(address, port); socket.setSoTimeout(500); System.out.println("port " + port + " open"); BufferedReader reader = new BufferedReader( new InputStreamReader(socket.getInputStream())); String line = reader.readLine(); if (line != null) { System.out.println(line); } socket.close(); } catch (SocketTimeoutException ex) { // port was open but nothing was read from input stream ex.printStackTrace(); } catch (ConnectException ex) { // port is closed ex.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } finally { if (socket != null && !socket.isClosed()) { try { socket.close(); } catch (Exception e) { e.printStackTrace(); } } } } The problem is that I get a ConnectionException both when the port is closed and the server cannot be reached but with a different exception message: java.net.ConnectException: Connection timed out: connect when the connection was never established and java.net.ConnectException: Connection refused: connect when the port was closed so I cannot make the distinction between the two use cases without digging into the actual exception message. Same thing happens when I try a different approach for the socket creation. If I use: socket = new Socket(); socket.setSoTimeout(500); socket.connect(new InetSocketAddress(address, port), 1000); I have the same problem but with the SocketTimeoutException instead. I get a java.net.SocketTimeoutException: Read timed out if port was open but there was no banner to be read and java.net.SocketTimeoutException: connect timed out if server is not live or port is closed. Any ideas? Thanks in advance!

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  • [PHP] Read and write to a file while keeping lock

    - by Znarkus
    Hi! I am making a simple page load counter by storing the current count in a file. This is how I want to do this: Lock the file Read the current count Increment it Write new count Unlock file/close it Can this be done? As I understand it, the file can't be written to without losing the lock. The only way I have come up with to tackle this, is to write a character using "r+" mode, and then counting characters.

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  • need help writing an emacs function

    - by murtaza52
    I want to write an emacs function that does the following - 1) Start a new shell named "abc". 2) Change the dir "/opt/abc" 3) In the dir run a shell command "python abc.py" I have written the following fucntion - (defun abc-server () (interactive) (shell-command "cd /opt/abc/") (shell-command "python abc.py")) The problem with the above - 1) It doesnt start a new shell 2) It doesnt change the dir. 3) When the cmd executes, it opens a browser window, which completely blocks any usage of emacs.

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  • returning JSON response to a ajax call prompts file download containing the response

    - by user200018
    i am submitting a from using jQuery ajax, and server is returning json response. but instead of the script, parsing the json result, the browser is prompting me to download the json response. I have had this problem before, where i forgot to return false at the end of the event handler. But this time im clueless why this is happening. anyone has experienced this problem.. thanks

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  • Access XAMPP Localhost from Internet

    - by coool
    Hi, I have XAMPP installed in local laptop. And I have a almost static ip. I would like to give the ip to other to run it from thier browser. I configured apache httpd-vhosts.conf to listen my ip address:80 and added the virtual server with the ip address and domain root to local httdocs directory and the servername as localhost. Apache doesn't start. what should I do to access my website from external computer. THnks

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  • Retrieving information with Python's urllib from a page that is done via __doPostBack()?

    - by Omar
    I'm trying to parse a page that has different sections that are loaded with a Javascript __doPostBack() function. An example of a link is: javascript:__doPostBack('ctl00$cphMain$ucOemSchPicker$dlSch$ctl03$btnSch','') As soon as this is clicked, the browser doesn't fetch a new URL but a section of webpage is updated to reflect new information. What would I pass into a urllib function to complete the operation?

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  • What makes a Winform position initially stale?

    - by msorens
    The code below demonstrates a very simple problem; I am hoping that I am just missing a setting that someone might be able to reveal. Goal (1) Launch main winform (MainForm). (2) Press button to display secondary winform (ShadowForm) that is semi-transparent and should exactly overlay MainForm. What Actually Happens Scenario 1: Launch main winform then press button: ShadowForm displays with correct size but incorrect location, lower and to the right (as if it was cascaded). Press button to close ShadowForm again. Press button once more to reopen ShadowForm and now it is in the correct position, covering MainForm. Scenario 2: Launch main winform, move it around, then press button: ShadowForm displays with correct size but incorrect location (where the MainForm was before moving it). Press button to close; press again to reopen and now ShadowForm is in the correct position. using System; using System.Windows.Forms; namespace LocationTest { static class Program { static void Main() { Application.EnableVisualStyles(); Application.SetCompatibleTextRenderingDefault(false); Application.Run(new MainForm()); } } public class MainForm : Form { ShadowForm shadowForm = new ShadowForm(); Button button1 = new Button(); System.ComponentModel.IContainer components = null; public MainForm() { this.SuspendLayout(); this.button1.Location = new System.Drawing.Point(102, 44); this.button1.Size = new System.Drawing.Size(75, 23); this.button1.Text = "button1"; this.button1.Click += new System.EventHandler(this.button1_Click); this.ClientSize = new System.Drawing.Size(292, 266); this.Controls.Add(this.button1); this.ResumeLayout(false); } private void button1_Click(object sender, EventArgs e) { if (shadowForm.Visible) { shadowForm.Hide(); } else { shadowForm.Size = Size; // this always works shadowForm.Location = Location; // this fails first time, but works second time! shadowForm.Show(); } } protected override void Dispose(bool disposing) { if (disposing && (components != null)) { components.Dispose(); } base.Dispose(disposing); } } public class ShadowForm : Form { private System.ComponentModel.IContainer components = null; public ShadowForm() { this.SuspendLayout(); this.BackColor = System.Drawing.Color.Black; this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.None; this.Opacity = 0.5; this.Click += new System.EventHandler(this.ShadowForm_Click); this.ResumeLayout(false); } private void ShadowForm_Click(object sender, EventArgs e) { Hide(); } protected override void Dispose(bool disposing) { if (disposing && (components != null)) { components.Dispose(); } base.Dispose(disposing); } } }

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  • Countdown timer?

    - by Khou
    How do you make a Countdown timer? When the user loads the page, clock starts counting down, it reaches time, it redirects browser to a new page. Found this, it was not too useful. http://encosia.com/2007/07/25/display-data-updates-in-real-time-with-ajax/

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  • HTML Option Tag with Value set as an Anchor

    - by Craig
    Hello, I am updating some super legacy code and I am unsure how to make this HTML5 compatible. <option value='<a href='http://localhost:8080/dm?id=&#037;&#037;SUBSCRIBER_ID_TAG&#037;&#037;'>View in a browser window</a>'>Display Message(HTML Version)</option> I personally have never run across something like that so any help would be great.

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  • When a asp.net button is clicked, add #button to the url

    - by Blankman
    Using jquery, when a button is clicked (server side), I want to append #button to the url. This will only be used when there is validation errors, I want the browser to scroll to the bottom where the button is. I already tried MaintainScrollPositionOnPostback but it doesn't work here since the validation rows are made visible upon clicking the button.

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