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  • JavaScript: Is there a way to get Chrome to break on all errors?

    - by Alessandro Vernet
    I am looking for an equivalent in Chrome to the "break on all errors" functionality of Firebug. In the Scripts tab, Chrome has a "pause on all exceptions", but this is not quite the same as breaking on all errors. For instance, when loading a page with the following code, I would like Chrome to break on the line foo.bar = 42. Instead, even when enabling the "Pause on all exceptions", I don't get the expected result. <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"> <head> <script type="text/javascript"> function doError() { foo.bar = 42; } window.onload = function() { try { doError(); } catch (e) { console.log("Error", e); } } </script> </head> <body> </body> </html> You can try the code pasted above on this page.

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  • Jasper Reports- Error instantiating extensions registry for chart.theme

    - by X-Pippes
    I'm trying to generate a jasper PDF. At the first time I try, I get this error: ERROR [net.sf.jasperreports.extensions.DefaultExtensionsRegistry] Error instantiating extensions registry for chart.theme from vfszip:My-App.ear/lib/jasperreports-chart-themes-4.7.0.jar/jasperreports_extension.properties org.springframework.beans.factory.parsing.BeanDefinitionParsingException: Configuration problem: Failed to import bean definitions from relative location [defaultChartPropertiesBean.xml] Offending resource: URL [My-App.ear/lib/jasperreports-chart-themes-4.7.0.jar/net/sf/jasperreports/chartthemes/spring/beans/chartThemesBeans.xml]; nested exception is org.springframework.beans.factory.parsing.BeanDefinitionParsingException: Configuration problem: Failed to import bean definitions from relative location [chartConstantsBean.xml] Offending resource: URL [My-App.ear/lib/jasperreports-chart-themes-4.7.0.jar/net/sf/jasperreports/chartthemes/spring/beans/defaultChartPropertiesBean.xml]; nested exception is org.springframework.beans.factory.BeanDefinitionStoreException: Unexpected exception parsing XML document from URL [My-App.ear/lib/jasperreports-chart-themes-4.7.0.jar/net/sf/jasperreports/chartthemes/spring/beans/chartConstantsBean.xml]; nested exception is org.springframework.beans.FatalBeanException: Class [org.springframework.beans.factory.xml.UtilNamespaceHandler] for namespace [http://www.springframework.org/schema/util] does not implement the [org.springframework.beans.factory.xml.NamespaceHandler] interface at org.springframework.beans.factory.parsing.FailFastProblemReporter.error(FailFastProblemReporter.java:68) However, the PDF is generated without any problem. Plus, the next time I try to generate one PDF, no more errors. this only occurs on the first generation.

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  • Selenium RC test - IE gives 403 error on Tomcat app, Tomcat root OK

    - by Ed Daniel
    I'm new to Selenium RC, having previously used Selenium IDE and only run tests in Firefox. I'm trying to get a basic test to run using Selenium RC through Eclipse; my test works OK in Firefox, and in Safari now that I've killed the pop-up blocker, but IE8 is causing a SeleniumException to be thrown, containing an "XHR ERROR" with a 403 response: com.thoughtworks.selenium.SeleniumException: XHR ERROR: URL = http://localhost:8080/pims Response_Code = 403 Error_Message = Forbidden at com.thoughtworks.selenium.HttpCommandProcessor.throwAssertionFailureExceptionOrError(HttpCommandProcessor.java:97) at com.thoughtworks.selenium.HttpCommandProcessor.doCommand(HttpCommandProcessor.java:91) at com.thoughtworks.selenium.DefaultSelenium.open(DefaultSelenium.java:335) at org.pimslims.seleniumtest.FirstTest.testNew(FirstTest.java:32) ... I can do a similar test on http:/ /localhost:8080 (space between the slashes here because SO thinks I'm spamming) and it's fine - I can make IE open that Tomcat default page and click a link. It's only if I try to open my application at http:/ /localhost:8080/pims that I see this error - and only in IE. I can open that URL in IE by typing it into the address bar. I was convinced that there's some setting in IE that's causing this, but I've tried everything I can think of. http:/ /localhost:8080 is in my Trusted Sites, and I've turned the security for that zone down to the minimum, allowed anything that looks related to popups, etc. If I try adding http:/ /localhost:8080/pims/ to Trusted Sites, IE says it's already there. I've also messed around with proxy settings, to no avail, but may have missed something obvious. I've tried starting the test with *iexplore, *iehta, and *iexploreproxy - all behave the same. Is there something I've missed? For reference, here is my test case - this works as is, in Firefox, opening the PIMS application's index page and clicking a link: public class FirstTest extends SeleneseTestCase { @Override public void setUp() throws Exception { this.setUp("http://localhost:8080/", "*firefox"); } public void testNew() throws Exception { final Selenium s = this.selenium; s.open("/pims"); s.click("logInOutLink"); s.waitForPageToLoad("30000"); } } Any help is greatly appreciated!

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  • Problem reintegrating a branch into the trunk in Subversion 1.5

    - by pako
    I'm trying to reintegrate a development branch into the trunk in my Subversion 1.5 repository. I merged all the changes from the trunk to the development branch prior to this operation. Now when I try to reintegrate the changes from the branch I get the following error message: Command: Reintegrate merge https://dev/svn/branches/devel into C:\trunk Error: Reintegrate can only be used if revisions 280 through 325 were previously Error: merged from https://dev/svn/trunk to the reintegrate Error: source, but this is not the case: Error: branches/devel/images/test Error: Missing ranges: /trunk/images/test:280-324 ... The message then goes on complaining about some folders in my project. But when I try to merge the changes from the trunk to the development branch again, TortoiseSVN tells me that there's nothing to merge (as I already merged all the changes before): Command: Merging revisions 1-HEAD of https://dev/svn/trunk into C:\devel, respecting ancestry Completed: C:\devel I'm trying to follow the instructions from here: http://svnbook.red-bean.com/en/1.5/svn.branchmerge.basicmerging.html, but there's nothing about solving such a problem. Any ideas? Perhaps I should just delete the trunk and then make a copy of my branch? But I'm not really sure if it's safe.

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  • Why AQTime slows execution even when profiling is not on, and can anything be done for it?

    - by Antti Suni
    Hi! In AQTime for Delphi, it boasts to be very fast to get to the trouble spots by using areas and triggers etc. But it seems to me, that especially if you have very much code in the areas to profile, then the execution slows down dramatically even when the profiling is NOT on. For example, if I want to profile a specific routine late in the program flow, but don't know what is called there, I'd think to put this routine only as a trigger and the initial status for threads as Off, and then choose "Full check by Routines/Lines". However, when I do this, the program execution slows down heavily already before the trigger routine has ever been hit. For example if the "preparation flow" takes around 5 minutes without AQTime, then when I run it with profiling disabled, it already has been running for 30 minutes and still goes even when I know the trigger has not yet even been reached. I know I can try to workaround this by reducing the amount of routines/lines profiled, but it is not really a good solution for me, since I'd like to profile all of them once I get to the actual trigger routine. Also another, often better workaround is to start the application without AQTime and then use Attach to Process after the "preparation flow" has finished, but this works well only when the execution pauses in GUI in the proper place or otherwise provides a suitable time frame for doing the attaching. In all cases this is not the case. Any comments on why this is so and is there anything else to do than just try to reduce the code from the areas or attach later to the process?

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  • Using complex data types from Java in Axis webservice

    - by Manuel Ferreria
    I am currently developing a Java app which handles a SOAP webservice. The problem lies after I parse the WSDL [the Parser object from Apache Axis does it for me], and I create the call. When I try to invoke it, I have to pass a Object[] to assign the parameters [taken from the Action of the WSDL]. A normal action is easy, but when I have custom datatypes, I can't get it to fill it out for me. I try to pass Object[]{ new Object { }}, but it assigns the first field instead. I can't pass it already processed, because it changes the '< ' to '--lt --gt', and the server doesn't recognize it'. This is a fragment of the WSDL. <s:element name="FERecuperaQTYRequest"> <s:complexType> <s:sequence> <s:element minOccurs="0" maxOccurs="1" name="argAuth" type="tns:FEAuthRequest" /> </s:sequence> </s:complexType> </s:element> <s:complexType name="FEAuthRequest"> <s:sequence> <s:element minOccurs="0" maxOccurs="1" name="Token" type="s:string" /> <s:element minOccurs="0" maxOccurs="1" name="Sign" type="s:string" /> <s:element minOccurs="1" maxOccurs="1" name="cuit" type="s:long" /> </s:sequence> </s:complexType> And this is the troublesome Java Fragment QTY = (String) call.invoke ( new Object[]{ new Object[]{ tokenConexion.getToken (), tokenConexion.getSign (), tokenConexion.getCUIT () } });

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  • Can the same ssh key be used to access two different users on the same server?

    - by Nick
    I have an new ubuntu (hardy 8.04) server, it has two users, User1 and User2. User1 is listed in sudoers. I appended my public ssh key to authorized_keys in /home/user1/.ssh/authorized_keys, changed the permissions on user1/.ssh/ to 700 and user1/.ssh/authorized_keys to 600 and both file and folder are owned my User1. Then added I User1 to sshd_config (AllowUsers User1). This works and I can login into User1 debug1: Offering public key: /Users/nick/.ssh/id_rsa debug1: Server accepts key: pkalg ssh-rsa blen 277 debug1: Authentication succeeded (publickey). debug1: channel 0: new [client-session] debug1: Entering interactive session. Last login: Mon Mar 15 09:51:01 2010 from 86.141.61.197 I then copied the authorized_keys file to /home/user2/.shh/ and changed the permissions and ownership and added User2 to AllowUsers in sshd_config (AllowUsers User1 User2). Now when I try to login to User2 it will not authenticate the same public key. debug1: Offering public key: /Users/nick/.ssh/id_rsa debug1: Authentications that can continue: publickey debug1: Trying private key: /Users/nick/.ssh/identity debug1: Trying private key: /Users/nick/.ssh/id_dsa debug1: No more authentication methods to try. Permission denied (publickey). Am I missing something fundamental about the way ssh works? Thanks in advance, Nick

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  • J2ME web service client

    - by Wasim
    Hi all , I started to use the Netbeans 6.8 web service client wizard . I created a web service (.Net web service) witch return an object Data. The Data class , contains fileds with many types : int , string , double , Person object and array of Person object. I created the J2ME client code through the wizard and every thing seems ok . I see in the Netbeans project the service and the stub . When I try to call my web service method , say Data GetData() ; Then I have a problem with parsing the returned data from the web service and the client data object . As follows : After finishing to call the web service method , in the stub code : public Data helloWorld() throws java.rmi.RemoteException { Object inputObject[] = new Object[] { }; Operation op = Operation.newInstance( _qname_operation_HelloWorld, _type_HelloWorld, _type_HelloWorldResponse ); _prepOperation( op ); op.setProperty( Operation.SOAPACTION_URI_PROPERTY, "http://tempuri.org/HelloWorld" ); Object resultObj; try { resultObj = op.invoke( inputObject ); } catch( JAXRPCException e ) { Throwable cause = e.getLinkedCause(); if( cause instanceof java.rmi.RemoteException ) { throw (java.rmi.RemoteException) cause; } throw e; } return Data_fromObject((Object[])resultObj); } private static Data Data_fromObject( Object obj[] ) { if(obj == null) return null; Data result = new Data(); result.setIntData(((Integer )obj[0]).intValue()); result.setStringData((String )obj[1]); result.setDoubleData(((Double )obj[2]).doubleValue()); return result; } I debug the code and in Run time resultObj has one element witc is an array of the Data object , so in parsing the values in the Data_fromObject method it expect many cells like we see in the code obj[0] , obj[1] , obj [2] but in realtime it has obj[0][0] , obj[0][1] , obj[0][2] What can be the problem , how can check the code generation issue ? Is it a problem with the web service side. Please help. Thanks in advance...

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  • Resize transparent images using C#

    - by MartinHN
    Does anyone have the secret formula to resizing transparent images (mainly GIFs) without ANY quality loss - what so ever? I've tried a bunch of stuff, the closest I get is not good enough. Take a look at my main image: http://www.thewallcompany.dk/test/main.gif And then the scaled image: http://www.thewallcompany.dk/test/ScaledImage.gif //Internal resize for indexed colored images void IndexedRezise(int xSize, int ySize) { BitmapData sourceData; BitmapData targetData; AdjustSizes(ref xSize, ref ySize); scaledBitmap = new Bitmap(xSize, ySize, bitmap.PixelFormat); scaledBitmap.Palette = bitmap.Palette; sourceData = bitmap.LockBits(new Rectangle(0, 0, bitmap.Width, bitmap.Height), ImageLockMode.ReadOnly, bitmap.PixelFormat); try { targetData = scaledBitmap.LockBits(new Rectangle(0, 0, xSize, ySize), ImageLockMode.WriteOnly, scaledBitmap.PixelFormat); try { xFactor = (Double)bitmap.Width / (Double)scaledBitmap.Width; yFactor = (Double)bitmap.Height / (Double)scaledBitmap.Height; sourceStride = sourceData.Stride; sourceScan0 = sourceData.Scan0; int targetStride = targetData.Stride; System.IntPtr targetScan0 = targetData.Scan0; unsafe { byte* p = (byte*)(void*)targetScan0; int nOffset = targetStride - scaledBitmap.Width; int nWidth = scaledBitmap.Width; for (int y = 0; y < scaledBitmap.Height; ++y) { for (int x = 0; x < nWidth; ++x) { p[0] = GetSourceByteAt(x, y); ++p; } p += nOffset; } } } finally { scaledBitmap.UnlockBits(targetData); } } finally { bitmap.UnlockBits(sourceData); } } I'm using the above code, to do the indexed resizing. Does anyone have improvement ideas?

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  • How can I convert a projection that's not part of spatial_ref_sys?

    - by Summer
    Hi, I'm importing shapefiles into a Postgres+PostGIS database. Here's my usual procedure: * Find an srid in the spatial_ref_sys table where srtext appears to match the shapefile's .prj file * Upload the data into a new table using the shp2pgsql utility, specifying the srid using the -s flag * Add the new table to my main geometry table, and on the way convert to an srid of 4269 (the Census standard projection) using ST_Transform Unfortunately, the spatial_ref_sys table doesn't include Mississippi state's standard projection. The contents of their .prj file is as follows, where I've bolded the parts I usually try to match: PROJCS["mstm",GEOGCS["GCS_North_American_1983",DATUM["D_North_American_1983",SPHEROID["GRS_1980",6378137.0,298.257222101]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Transverse_Mercator"],PARAMETER["False_Easting",500000.0],PARAMETER["False_Northing",1300000.0],PARAMETER["Central_Meridian",-89.75],PARAMETER["Scale_Factor",0.9998335],PARAMETER["Latitude_Of_Origin",32.5],UNIT["Meter",1.0]] I eventually found the ogr2ogr utility, and especially with the "peace and joy" promises, I decided to give it a try. I tried this command: ogr2ogr -update -f "PostgreSQL" PG:"Connection details" "File name.shp" -t_srs EPSG:4269 -nln Table_Name I am now getting the error "Terminating translation prematurely after failed translation of layer" -- which seems to indicate that ogr2ogr is not going to be the savior I imagined in getting arbitrary .prj files neatly into the 4269 projection. Any ideas about what to do?

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  • Solutions for working with multiple branches in ASP.Net

    - by Corey McKinnon
    At work, we are often working on multiple branches of our product at one time. For example, right now, we have a maintenance branch, a branch with code just going to QA, and a branch for a new major initiative, that won't be merged for some time now. Our web project is set up to use IIS, so every time we switch to a different branch, we have to go in to IIS Admin and change the path on the virtual directory, then reset IIS, and sometimes even restart Visual Studio, to avoid getting build errors. Is there any way to simplify this, other than not having our web project set up as a virtual directory? I'm not sure we want to make that change at this point. What do you do to make this easier, assuming you do this? Corey @RedWolves, virtual machines would definitely work, but I'm not sure it would be any simpler, especially for some of the other developers on my team, which is partly why I'm looking for more simplicity. @Dan, we're not able to change source control providers, unfortunately. @pix0r, that's something I'll try when I get back to work. Thanks for the suggestion. @Haacked, I'll have to give that a try too, but I think we have some issues with why that won't work (I can't remember exactly why right now; this application was originally written in .Net 1.1, pre-Cassini, and I can't remember if we tried it when we upgraded to 2.0 or not). Thanks all for the responses so far.

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  • Trying to build a Drupal-like CMS in ASP.NET MVC - Newbie Questions

    - by user252160
    I am new to ASP.NET MVC, and the ASP.NET technology in general, so, please, excuse the stupidity of my questions. I have a lot of experience with php development and CMS customization (Drupal and Wordpress mainly), and I wanted to know whether some techniques could be applied in asp.net mvc. I want to know what exactly could be modified without recompiling an already built application Can I edit the views without recompiling the app. Can I create custom themes ? Can I add plugins compiled as dlls and use them at runtime. Can I "mark" the assembly in such a way that the web application will check on the next request and will reference it, without me manually adding it to the project and recompiling. I've heard that this is possible. I will make sure to add more when something comes up. The reason I am asking is because I'd like to try and develop a Drupal-like CMS (custom types, views, etc) in asp.net mvc. The dynamism of php will be quite a challenge to replicate in a compiled technology, yet I am ready to try.

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  • Full Text Search MSSQL2008 show wrong display_item for Thai Language

    - by ensecoz
    I am working on MSSQL2008. My task is to investigate the issue that why FTS cannot find the right result for Thai. First, I am having the table which enable the FTS on the column 'ItemName' which is nvarchar. The Catalog is created with the Thai Language. Note that, Thai language is one of the language that doesn't separate the word by space so '????' '???' '????' are written like this in the sentence '???????????' In the table, there are many rows that include the word (????) for examples row#1 (ItemName: '???????????') On the webpage, I try to search for '????' but SQLServer cannot find it. So I try to investigate it by trying the following query in SQLServer select * from sys.dm_fts_parser(N'"???????????"', 1054, 0, 0) To see how the words are broken. The first one is the text to be break. The second parameter is specify that using Thai (WorkBreaker, so on). and here is the result: row#1 (display_item: '????', source_item: '???????????') row#2 (display_item: '????', source_item: '???????????') row#3 (display_item: '??', source_item: '???????????') Notice that the first and second row display the worng display_item '?' in the '????' isn't even Thai characters. '?' in '????' is not Thai charater either. So the question is where is those alien characters come from? I guess this i why I cannot search for '????' because the word breaker is mis-borken and keeping the wrong character in the indexes. Please help!

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  • php: fopen() of an URL breaks for domain names, not for numerical addresses

    - by b0fh
    After hours of trying to debug a third-party application having trouble with fopen(), i finally discovered that php -r 'echo(file_get_contents("http://www.google.com/robots.txt"));' fails, but php -r 'echo(file_get_contents("http://173.194.32.81/robots.txt"));' Succeeds. Note that as the webserver user, I can ping www.google.com and it resolves just fine. I straced both executions of PHP, and they diverge like this: For the numerical v4 URL: socket(PF_INET, SOCK_STREAM, IPPROTO_IP) = 3 fcntl(3, F_GETFL) = 0x2 (flags O_RDWR) fcntl(3, F_SETFL, O_RDWR|O_NONBLOCK) = 0 connect(3, {sa_family=AF_INET, sin_port=htons(80), sin_addr=inet_addr("173.194 poll([{fd=3, events=POLLOUT}], 1, 0) = 0 (Timeout) ...[bunch of poll/select/recvfrom]... close(3) = 0 For the domain name: socket(PF_INET6, SOCK_DGRAM, IPPROTO_IP) = 3 close(3) = 0 PHP didn't even try to do anything with that socket, it seems. Or even resolve the domain, for that matter. WTF ? Recompiling PHP with or without ipv6 support did not seem to matter. Disabling ipv6 on this system is not desirable. Gentoo Linux, PHP 5.3.14, currently giving a try to PHP 5.4 and see if it helps. Anyone has an idea ? EDIT: php -r 'echo gethostbyname("www.google.com");' Works and yield an ipv4, while php -r 'echo(file_get_contents("http://[2a00:1450:4007:803::1011]/"));' Seems to return a blank result. EDIT 2: I didn't even notice the first time, that the v6 socket opened when the name is used is a SOCK_DGRAM.

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  • Java FileLock for Reading and Writing

    - by bobtheowl2
    I have a process that will be called rather frequently from cron to read a file that has certain move related commands in it. My process needs to read and write to this data file - and keep it locked to prevent other processes from touching it during this time. A completely separate process can be executed by a user to (potential) write/append to this same data file. I want these two processes to play nice and only access the file one at a time. The nio FileLock seemed to be what I needed (short of writing my own semaphore type files), but I'm having trouble locking it for reading. I can lock and write just fine, but when attempting to create lock when reading I get a NonWritableChannelException. Is it even possible to lock a file for reading? Seems like a RandomAccessFile is closer to what I need, but I don't see how to implement that. Here is the code that fails: FileInputStream fin = new FileInputStream(f); FileLock fl = fin.getChannel().tryLock(); if(fl != null) { System.out.println("Locked File"); BufferedReader in = new BufferedReader(new InputStreamReader(fin)); System.out.println(in.readLine()); ... The exception is thrown on the FileLock line. java.nio.channels.NonWritableChannelException at sun.nio.ch.FileChannelImpl.tryLock(Unknown Source) at java.nio.channels.FileChannel.tryLock(Unknown Source) at Mover.run(Mover.java:74) at java.lang.Thread.run(Unknown Source) Looking at the JavaDocs, it says Unchecked exception thrown when an attempt is made to write to a channel that was not originally opened for writing. But I don't necessarily need to write to it. When I try creating a FileOutpuStream, etc. for writing purposes it is happy until I try to open a FileInputStream on the same file.

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  • Could not load file or assembly 'GMap.NET.Core' or one of its dependencies. An attempt was made to load a program with an incorrect format.

    - by Sam M
    I have a wcf Service application in VS2010.My local machine is a 32 bit OS where as the server is a 64 bit. There are around 6 services in my solution. Im successfully able to host the application on IIS on my local machine.And it works fine. But when i try host that service application on Server i gets the below error Could not load file or assembly 'GMap.NET.Core' or one of its dependencies. An attempt was made to load a program with an incorrect format. I do have reference added in my solution for GMap.NET.Core . I have tried to set the properties in my solution to Any CPU . Also in the application pool i have set the Enable 32-Bit Application to True. i have also set the Copy Local to TRUE in my solution before publishing. When i run the source on through my solution i dont get any error and the solution is built successfully. What else can i try to get my services successfully hosted on the Server and should be accessed through my application.

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  • android bindservice

    - by mnish
    hi, I get null pointer exception at line mService.start() when i try to bind to an already started service. I do the same thing from different activity(where the service gets started) everythig goes right. All these activities are part of one application. What do you think I do wrong? public class RouteOnMap extends MapActivity{ private static final int NEW_LOCATION = 1; private static final int GPS_OFF = 2; private MapView mMapView; private ILocService mService; private boolean mServiceStarted; private boolean mBound; private Intent mServiceIntent; private double mLatitude, mLongitude; private ServiceConnection connection = new ServiceConnection() { public void onServiceConnected(ComponentName className, IBinder iservice) { mService = ILocService.Stub.asInterface(iservice); mBound = true; } public void onServiceDisconnected(ComponentName className) { mService = null; mBound = false; } }; public void onCreate(Bundle savedInstanceState){ super.onCreate(savedInstanceState); setContentView(R.layout.mapview); mMapView = (MapView) findViewById(R.id.mapview); mMapView.setBuiltInZoomControls(true); mServiceIntent = new Intent(); mLatitude = 0.0; mLongitude = 0.0; mBound = false; } @Override public void onStart(){ super.onStart(); mServiceIntent.setClass(this, LocationService.class); //startService(mServiceIntent); if(!mBound){ mBound = true; this.bindService(mServiceIntent, connection, Context.BIND_AUTO_CREATE); } } @Override public void onResume(){ super.onResume(); try { mService.start(); } catch (RemoteException e) { e.printStackTrace(); } } @Override public void onPause(){ super.onPause(); if(mBound){ this.unbindService(connection); } } @Override protected boolean isRouteDisplayed() { // TODO Auto-generated method stub return false; } }

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  • Parsec: backtracking not working

    - by Nathan Sanders
    I am trying to parse F# type syntax. I started writing an [F]Parsec grammar and ran into problems, so I simplified the grammar down to this: type ::= identifier | type -> type identifier ::= [A-Za-z0-9.`]+ After running into problems with FParsec, I switched to Parsec, since I have a full chapter of a book dedicated to explaining it. My code for this grammar is typeP = choice [identP, arrowP] identP = do id <- many1 (digit <|> letter <|> char '.' <|> char '`') -- more complicated code here later return id arrowP = do domain <- typeP string "->" range <- typeP return $ "("++domain++" -> "++range++")" run = parse (do t <- typeP eof return t) "F# type syntax" The problem is that Parsec doesn't backtrack by default, so > run "int" Right "int" -- works! > run "int->int" Left "F# type syntax" unexpected "-" expecting digit, letter, ".", "`" or end of input -- doesn't work! The first thing I tried was to reorder typeP: typeP = choice [arrowP, identP] But this just stack overflows because the grammar is left-recursive--typeP never gets to trying identP because it keeps trying arrowP over and over. Next I tried try in various places, for example: typeP = choice [try identP, arrowP] But nothing I do seems to change the basic behaviours of (1) stack overflow or (2) non-recognition of "-" following an identifier. My mistake is probably obvious to anybody who has successfully written a Parsec grammar. Can somebody point it out?

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  • Any Red5 Working Example Project for 0.9 release

    - by Daryl
    I'm trying to find 1, just 1, working sample project for Red5 that's updated to work against the latest 0.9 release without missing jars and other nonsense. Right now, it's at v0.9 and the libs are different from other versions. They have 5 pathetic examples on their website, but all were built with the older versions, and who knows which version since they don't seem to be putting any effort into updating or marketing their open source project. For these 5 old examples, I could use the Add External JARS feature to try and add libs from previous versions, they don't mention which versions they were built against and I'm not going to try each previous version to see which works (I already did and nothing works). P.S. Voted the worst documented project on the planet. It's hilarious, one of their developers posted a few videos on youtube, without bothering to attach a sample zip for the get-started project he's demoing. No offense, but that's seriously #(#$$#($!@#*. Not a good start for any tech decision maker to assess a technology for commercial use. Anyone who's more intelligent and can shed some light on behalf of these fools?

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  • Which type of file parsing easiest and efficient and good ?(html,pdf,csv,text)

    - by Harikrishna
    I want to parse the html file, pdf file, csv file and text file. Now parsing for which type of file (specified above) is easiest and efficient ? Like parsing for html file is easiest and efficient OR parsing for pdf file is easiest and efficient OR parsing for csv file is easiest and efficient ? I am asking this question because I want to parse pdf ,html ,csv and text file through common parsing code if possible. And now suppose if parsing for html is easiest and efficient then : I will write the parsing code for html file and will try to convert pdf file to the html file(if possible)so the code written for parsing html file will also work for pdf file also. And thus I will try to convert pdf,csv and text file to html file.And write the code for parsing html file and thus this code will parse html,pdf,csv and text file. Suppose if parsing for pdf is easiest and efficient then : I will convert html,csv and text file to pdf and write the code for parsing pdf file.So the code for parsing pdf file can parse html,csv and text file. So my question is (1) Which type of file parsing is easiest and efficient (pdf,csv,html,text) ? (2) And converting files(pdf,text,html,csv) to eachother is possible. Like if html parsing easiest then pdf to html,text to html and csv to html.

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  • Android fragments problems different layouts

    - by juan
    I have two layouts: one for portait with one container and another for landscape with two containers. In the first layout I show a fragment and when the user select one element, I replace the fragment with another (with FragmentTransation.Replace). <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" > <LinearLayout android:id="@+id/container1" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical" /> </RelativeLayout> In the second layout I want to show the two fragments at one time, one in the first container and the second in the second container. <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="horizontal" > <LinearLayout android:id="@+id/container1" android:layout_width="0dp" android:layout_height="match_parent" android:layout_weight="3" android:orientation="vertical" /> <LinearLayout android:id="@+id/container2" android:layout_width="0dp" android:layout_height="match_parent" android:layout_weight="7" android:orientation="vertical" /> </LinearLayout> But I can't make this works with configuration changes. I try use different names for containers, try add fragments when only bundle is null,... Someone have a working code of this case?

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  • Need to kill a session?

    - by rob - not a robber
    Really quick here... I think I have the answer, but just looking for some validation. I have a site with two "points of entry." One is for a standard user and one is for an admin account. In the real world, an admin could have a standard user account and try to login as an admin while already being under the standard user session. I have two separate front ends to facilitate login. The normal user one is frilly and has ads and the like, the admin one is strictly business, so any suggestion to have the two user types login through the same "door" is not on the table. Would you advise on the admin login page to destroy any active sessions? Once the admin is in, they'll only be tooling around in their admin area and not on the main site. Has anyone run into probs using this method and having an admin-type user try to log back in in a new window as a "user" to view changes from a logged in user's prespective? Thanks in advance. So many cans of worms :)

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  • COMException in System.WIndows.Forms.dll with Interactive Brokers TWS API

    - by Lirik
    Hi, I've been trying to run the sample project provided with the tutorial at stockbotprogramming http://www.stockbotprogramming.com/sharpcibtutorial1.php , but I keep getting a COMException every time I run the application. I have the TWS Client running and the sample VB projects provided with the API are able to connect just fine, but when I try to use the C# sample provided by the tutorial then I get the following exception: An unhandled exception of type 'System.Runtime.InteropServices.COMException' occurred in System.Windows.Forms.dll Th exception happens when I try to add the TWS ActiveX control: namespace CSharpTutorial1 { public partial class Form1 : Form { private AxTWSLib.AxTws tws; public Form1() { InitializeComponent(); } private void Form1_Load(object sender, EventArgs e) { tws = new AxTWSLib.AxTws(); tws.BeginInit(); tws.Enabled = true; tws.Location = new System.Drawing.Point(32, 664); tws.Name = "tws"; Controls.Add(tws); // <-- EXCEPTION HERE! tws.EndInit(); tws.connect("127.0.0.1", 7496, 0); String msg = "Connected to TWS server version " + tws.serverVersion + "at " + tws.TwsConnectionTime; MessageBox.Show(msg); } } } Does anybody know what could be causing this exception? Any ideas on how to fix it?

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  • Linux Kernel - Red/Black Trees

    - by CodeRanger
    I'm trying to implement a red/black tree in Linux per task_struct using code from linux/rbtree.h. I can get a red/black tree inserting properly in a standalone space in the kernel such as a module but when I try to get the same code to function with the rb_root declared in either task_struct or task_struct-files_struct, I get a SEGFAULT everytime I try an insert. Here's some code: In task_struct I create a rb_root struct for my tree (not a pointer). In init_task.h, macro INIT_TASK(tsk), I set this equal to RB_ROOT. To do an insert, I use this code: rb_insert(&(current-fd_tree), &rbnode); This is where the issue occurs. My insert command is the standard insert that is documented in all RBTree documentation for the kernel: int my_insert(struct rb_root *root, struct mytype *data) { struct rb_node **new = &(root->rb_node), *parent = NULL; /* Figure out where to put new node */ while (*new) { struct mytype *this = container_of(*new, struct mytype, node); int result = strcmp(data->keystring, this->keystring); parent = *new; if (result < 0) new = &((*new)->rb_left); else if (result > 0) new = &((*new)->rb_right); else return FALSE; } /* Add new node and rebalance tree. */ rb_link_node(&data->node, parent, new); rb_insert_color(&data->node, root); return TRUE; } Is there something I'm missing? Some reason this would work fine if I made a tree root outside of task_struct? If I make rb_root inside of a module this insert works fine. But once I put the actual tree root in the task_struct or even in the task_struct-files_struct, I get a SEGFAULT. Can a root node not be added in these structs? Any tips are greatly appreciated. I've tried nearly everything I can think of.

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  • Custom Membership in ASP.NET MVC 2

    - by Interfector
    Hello, I'm trying to make my Custom Membership starting from ASP.NET's. I have a users table created by me which has as Primary Key a Guid UserId, exactly the sames as ASP.NET's default user and membership table. I have all the Foreign Key relationships built. However, I cannot insert the user into my custom users table. The data gets inserted correctly into the default ASP.NET's tables. I have tried the following scenarios: First version Receive the user model from POST call the CreateUser method of the Membership.class (stuff gets inserted) without modifying the user object, I try to insert it using EF's AddObject I receive the following error: "Cannot insert the value NULL into column 'LoweredUserName', table 'asp.dbo.aspnet_Users'; column does not allow nulls. INSERT fails.\r\nThe statement has been terminated."} System.Exception {System.Data.SqlClient.SqlException The error actually makes sense as EF's AddObject doesn't know how to create the LoweredUserName value, and I don't want to do it, this is ASP.NET's job. Second version Receive the user model from POST call the CreateUser method of the Membership.class (stuff gets inserted) Get the Guid of the freshly inserted system user get the ASP.NET's User object and overwrite that of user.User get the ASP.NET's Membership object and overwrite that of user.Membership (remember the FKs) try again EF's AddObject new error {"The relationship between the two objects cannot be defined because they are attached to different ObjectContext objects."} System.Exception {System.InvalidOperationException} Don't know what this is, but it certenly doesn't make any sense for me. After some googleing I think that it has something to do with the context, but as I'm a beginner I don't know how to fix it. Any ideeas on how to accomplish this task are more than welcomed, especially if they follow some good practices. Thx

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