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  • ANTLR JavaScript Target

    - by kunalsawlani
    Hello, I have been using ANTLR to generate a parser + tree grammar for a mark up language with Java target which works fine. Now I am trying to get the target in JavaScript to use it in my web browser. However, I have not been able to locate any good documentation on how to go about doing this. I am using eclipse with ANTLR IDE, and when i specify the language as JavaScript, I get the following errors. Multiple markers at this line (10): internal error: group JavaScript does not satisfy interface ANTLRCore: mismatched arguments on these templates [treeParser(grammar, name, scopes, tokens, tokenNames, globalAction, rules, numRules, bitsets, labelType, ASTLabelType, superClass, members, filterMode)] (10): internal error: java.util.NoSuchElementException: no such attribute: filterMode in template context [treeParser] If anyone could help me out with this or point me to some material which I could read about the JavaScript target with ANTLR, it would be great. Thanks

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  • java servlet programming errror

    - by abson
    C:\Tomcat5.5\webapps\WEB-INF\classes>javac MyServlet.java MyServlet.java:2: package javax.servlet does not exist import javax.servlet.*; ^ MyServlet.java:3: package javax.servlet.http does not exist import javax.servlet.http.*; ^ MyServlet.java:5: cannot find symbol symbol: class HttpServlet public class MyServlet extends HttpServlet ^ MyServlet.java:7: cannot find symbol symbol : class HttpServletRequest location: class MyServlet public void doGet(HttpServletRequest req, HttpServletResponse res) throws Serv letException,IOException ^ MyServlet.java:7: cannot find symbol symbol : class HttpServletResponse location: class MyServlet public void doGet(HttpServletRequest req, HttpServletResponse res) throws Serv letException,IOException ^ MyServlet.java:7: cannot find symbol symbol : class ServletException location: class MyServlet public void doGet(HttpServletRequest req, HttpServletResponse res) throws Serv letException,IOException ^ 6 errors

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  • Retrieving Raw Data From RSS Feeds

    - by Rob
    I am trying to retrieve and use the raw data from RSS feeds. For example, trying to take a Yahoo Live Sports Scores RSS feed and taking the information and storing it in a database or displaying it on my web page for the games at interest. What is the best way to do this? I would prefer to use PHP to do this. Thank you in advance for your help!

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  • PostgreSQL: Auto-partition a table

    - by Adam Matan
    Hi, I have a huge database which holds pairs of numbers (A,B), each ranging from 0 to 10,000 and stored as floats. e.g., (1, 9984.4), (2143.44, 124.243), (0.55, 0), ... Since the PostgreSQL table which stores these pairs grew quite large, I have decided to partition it into inheriting sub-tables. I intend to create 100 such tables, each storing a range of 1000x1000. The problem is that these numbers tend to come in large chunks of nearby numbers. It means that in the future, some tables will be nearly empty and some will hold a very large portion of the database. Unfortunately, the distribution of future pairs is yet unknown. I am looking for a way to automatically repartition my table. That means that if a certain subtable holds more than a specific number of pairs, it will be automatically partitioned into four sub-sub tables, and so on. My questions are: Is recursive partitioning and inheritance possible in PostgreSQL 8.3? Will indexes and query plans understand it? What's the best way to split a subtable once it grew too large? I should point out that this isn't a live database, so a downtime of few hours every week is totally acceptable. Thanks in advance, Adam

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  • TortoiseGit - representing branches in a tree - visual issue

    - by richard
    This is a little hard to explain with text, but I'll do my best, and you try to keep up; if something isn't clear at first, don't hesitate to ask, and I'll try to clarify. When TortoiseGit has one branch it looks approximately like this: o | o <-- a commit sign | x When I split my work into a new branch, it looks like this: o | o--o | x when I split, from the master to another new branch it looks like this: o--o | o--o | x Is there a way for every new branch that I make, and work on, to have its own "line" ... what I mean: o-----o | o--o | x so they don't "vertically overlap". So that every branch, has its own vertical line I can follow (for some reason this looks rather confusing to me, the way it's done now). Do any other Git clients for Windows do this differently ?

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  • Is using the .NET Image Conversion enough?

    - by contactmatt
    I've seen a lot of people try to code their own image conversion techniques. It often seems to be very complicated, and ends up using GDI+ function calls, and manipulating bits of the image. This has got me wondering if I am missing something in the simplicity of .NET's image conversion call when saving an image. Here's the code I have: Bitmap tempBmp = new Bitmap("c:\temp\img.jpg"); Bitmap bmp = new Bitmap(tempBmp, 800, 600); bmp.Save(c:\temp\img.bmp, //extension depends on format ImageFormat.Bmp) //These are all the ImageFormats I allow conversion to within the program. Ignore the syntax for a second ;) ImageFormat.Gif) //or ImageFormat.Jpeg) //or ImageFormat.Png) //or ImageFormat.Tiff) //or ImageFormat.Wmf) //or ImageFormat.Bmp)//or ); This is all I'm doing in my image conversion. Just setting the location of where the image should be saved, and passing it an ImageFormat type. I've tested it the best I can, but I'm wondering if I am missing anything in this simple format conversion, or if this is sufficient?

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  • How to specify a SEO friendly url like twitter www.twitter.com/<name> using YII framework

    - by hip10
    Hi, I am currently using the Yii framework, and I would like to know if anyone has any clue on how to setup a SEO friendly url like www.twitter.com/ automatically in Yii? I know how to do so this manually in the config/main.php but I would like to be able to dynamically generate it. I have been able to do it in Grails as well. In Yii, what I know of is that you need to have another parameter like www.twitter.com/l/, but I do not want that parameter, anyone can share? Thanks.

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  • How to limit speed with BMW JSDK on 116i?

    - by lexicore
    I'm experimenting with the BMW Java SDK on the new BMW 116i Innovation Package. Basic things like turning the lights on and off, starting and stopping the motor work fine. What I'm trying to do now is that to write a carlet which would limit the speed to the maximum configured in the driver profile. Driver identity will be detected as usual via RFID reader. My problem is that though I can read the speed from the tachometer, I can't really limit the speed. Here's what I've got working so far: public class SpeenControllingCarlet extends GenericCarlet { public void start(final VehicleModel model) throws CarletException { RfidReader rfidReader = (RfidReader) model .getDevice(Devices.DRIVER_RFID_READER); Rfid rfid = rfidReader.getRfid(); DriverProfile driverProfile = model.getDriverProfileRegistry() .getDriverProfile(rfid.toString()); if (driverProfile == null) { return; } final Double maxAllowedSpeed = Double.valueOf(driverProfile .getCustomAttribute("maxAllowedSpeed", "190")); Tachometer tachometer = (Tachometer) mode.getDevice(Devices.TACHOMETER); tachometer.addSpeedListener(new SpeedListener() { public void onSpeedChanged(SpeedChangedEvent speedChangedEvent) { if (speedChangedEvent.getCurrentSpeed() > maxAllowedSpeed) { Horn horn = (Horn) mode.getDevice(Devices.HORN); horn.beep(440, 2000); } } }); } } This will just beep for two seconds if the driver goes faster than the driver profile allows. My question is - is there a possibility to actually limit the speed (not just silly beeping)?

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  • Any tutorial for Python PalmDB library?

    - by roddik
    Hello, I've downloaded the Python PalmDB lib, but can't find any info on how to use it. I've tried reading docstrings and so far I've been able to come up with the following code: from pprint import pprint from PalmDB.PalmDatabase import PalmDatabase pdb = PalmDatabase() with open('testdb.pdb','rb') as data: pdb.fromByteArray(data.read()) pprint(dir(pdb)) pprint(pdb.attributes) print pdb.__doc__ #print pdb.records print pdb.records[10].toXML() which gives me the xml representation of a record (?) with some nasty long payload attribute, which doesn't resemble any kind of human-readable text to me. I just want to read the contents of the pdb file. Is there a guide/tutorial for this library? What would you do to figure out the proper way to make things done in my situation?

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  • How do I open a new browser tab?

    - by Ionut Staicu
    Hi guys. I'm working on this project and I have to open a new browser tab. Actually, I have to open a target="_blank" link without the link. I know is not right to interfere with the user preferences, but hey, this is the project requirements. So, long story short, i have to replicate the target="_blank" behavior only with javascript. Is this even possible? Thanks!

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  • WCF service to send large binaries to server

    - by Ali Shafai
    I need to upload large (100 meg max) binairies to server using WCF. I followed instructions from this: http://www.c-sharpcorner.com/UploadFile/dhananjaycoder/fileuploadsilverlightwcf07142009104020AM/fileuploadsilverlightwcf.aspx it workds for anything less than 50K. going above that I get 415 errors. any idea?

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  • FaceBook Graph API

    - by LingAi
    Hi All, When I use FaceBook API for retrieving posts information, I found that the returned information are changing all the time. for e.g., when I retrieved information 2 times with 1mins interval, one record appears in the 1st time, and disapeared in the 2nd time. https://graph.facebook.com/search?q=baby&type=post&limit=100&since=2010-05-19&until=2010-05-21 Does anyone know what happen? Cheers, LingChen

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  • Difficulty setting ArrayList to java.sql.Blob to save in DB using hibernate

    - by me_here
    I'm trying to save a java ArrayList in a database (H2) by setting it as a blob, for retrieval later. If this is a bad approach, please say - I haven't been able to find much information on this area. I have a column of type Blob in the database, and Hibernate maps to this with java.sql.Blob. The code I'm struggling with is: Drawings drawing = new Drawings(); try { ByteArrayOutputStream bos = new ByteArrayOutputStream(); ObjectOutputStream oos = null; oos = new ObjectOutputStream(bos); oos.writeObject(plan.drawingPane21.pointList); byte[] buff = bos.toByteArray(); Blob drawingBlob = null; drawingBlob.setBytes(0, buff); drawing.setDrawingObject(drawingBlob); } catch (Exception e){ System.err.println(e); } The object I'm trying to save into a blob (plan.drawingPane21.pointList) is of type ArrayList<DrawingDot>, DrawingDot being a custom class implementing Serializable. My code is failing on the line drawingBlob.setBytes(0, buff); with a NullPointerException. Help appreciated.

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  • Is it possible to override List accessors in Grails domain classes?

    - by Ali G
    If I have a List in a Grails domain class, is there a way to override the addX() and removeX() accessors to it? In the following example, I'd expect MyObject.addThing(String) to be called twice. In fact, the output is: Adding thing: thing 2 class MyObject { static hasMany = [things: String] List things = [] void addThing(String newThing) { println "Adding thing: ${newThing}" things << newThing } } class BootStrap { def init = { servletContext -> MyObject o = new MyObject().save() o.things << 'thing 1' o.addThing('thing 2') } def destroy = { } }

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  • How can I work around "Xcode could not locate source file"

    - by Septih
    Hello, I'm working with the ID3 framework in Xcode (which has since disappeared off the face of the web - including google cache!). I'm testing out an import mp3 feature which allows them to edit the tags as they import them. One of the test cases is a corrupt or invalid mp3 with no proper id3 header. The problem I'm having is that when updating the tags of the invalid mp3 (updateFile:), the ID3 framework attempts to use id3V1Tag.m (I assume it falls back to this if it can't find the v2 tag) and this is where I get the Xcode error (whilst running the program, not building): Xcode could not locate source file: id3V1Tag.m (line: 299) Even in a release build this crashes the program, so it's not something I can really ignore. I've tried putting a try/catch block around it but it's not treated as an exception so doesn't get caught. The function to load the tag data for the file returns a BOOL but it appears this only returns false if the given file doesn't exist, so this doesn't help either. Current code: [tagData release]; tagData = [[TagAPI alloc] initWithGenreList:nil]; tagsLoaded = [tagData examineFile:exportPath]; if(tagsLoaded) { [tagData setTitle:title]; [tagData setArtist:artist]; [tagData setComments:comments]; @try { [tagData updateFile]; } @catch (id e){ NSLog(@"h"); } }

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  • Problem installing RMagick rubygem on Centos 5

    - by Keith Pitty
    I'm having problems installing the RMagick rubygem on Centos 5. I've followed the steps detailed in http://rmagick.rubyforge.org/install2-linux.html but when I try: sudo gem install rmagick the result is: Building native extensions. This could take a while... ERROR: Error installing rmagick: ERROR: Failed to build gem native extension. /usr/local/bin/ruby extconf.rb checking for Ruby version >= 1.8.5... yes checking for gcc... yes checking for Magick-config... no Can't install RMagick 2.11.0. Can't find Magick-config in /usr/bin:/bin *** extconf.rb failed *** Could not create Makefile due to some reason, probably lack of necessary libraries and/or headers. Check the mkmf.log file for more details. You may need configuration options. Provided configuration options: --with-opt-dir --without-opt-dir --with-opt-include --without-opt-include=${opt-dir}/include --with-opt-lib --without-opt-lib=${opt-dir}/lib --with-make-prog --without-make-prog --srcdir=. --curdir --ruby=/usr/local/bin/ruby Gem files will remain installed in /usr/local/lib/ruby/gems/1.8/gems/rmagick-2.11.0 for inspection. Results logged to /usr/local/lib/ruby/gems/1.8/gems/rmagick-2.11.0/ext/RMagick/gem_make.out The directory /usr/local/bin contains Magick-config but I haven't been able to get rubygems to look there. I tried the following but the result was the same: sudo gem install rmagick -- --with-opt-dir=/usr/local/bin Any suggestions would be appreciated.

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  • Java SAX ContentHandler to create new objects for every root node

    - by behrk2
    Hello everyone, I am using SAX to parse some XML. Let's say I have the following XML document: <queue> <element A> 1 </element A> <element B> 2 </element B> </queue> <queue> <element A> 1 </element A> <element B> 2 </element B> </queue> <queue> <element A> 1 </element A> <element B> 2 </element B> </queue> And I also have an Elements class: public static Elements { String element; public Elements() { } public void setElement(String element){ this.element = element; } public String getElement(){ return element; } } I am looking to write a ContentHandler that follows the following algorithm: Vector v; for every <queue> root node { Element element = new Element(); for every <element> child node{ element.setElement(value of current element); } v.addElement(element); } So, I want to create a bunch of Element objects and add each to a vector...with each Element object containing its own String values (from the child nodes found within the root nodes. I know how to parse out the elements and all of those details, but can someone show me a sample of how to structure my ContentHandler to allow for the above algorithm? Thanks!

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  • WPF DataTemplate - Overlay

    - by David Ward
    I have a class that I need to provide the datatemplate for. Currently I have two datatemplates, one for when Enabled == true and one for when Enabled == false. The datatemplate for the class is actually the one below which changes the template used based on a trigger: <DataTemplate x:Key="ActionNodeTemplateSelector"> <ContentPresenter Content="{Binding}" Name="cp" /> <DataTemplate.Triggers> <DataTrigger Binding="{Binding Enabled}" Value="True"> <Setter TargetName="cp" Property="ContentTemplate" Value="{StaticResource ActionNodeTemplate}" /> </DataTrigger> <DataTrigger Binding="{Binding Enabled}" Value="False"> <Setter TargetName="cp" Property="ContentTemplate" Value="{StaticResource ActionNodeDisabledTemplate}" /> </DataTrigger> </DataTemplate.Triggers> </DataTemplate> This all works well. However, now I want to also display an image overlay if the "Completed" property is true and a different image if it is incomplete. I could easily carry on using my approach to trigger on the Completed property as well but this would double the number of templates and feels wrong. Is there a way that I could have a trigger on my DataTemplate that will allow me to overlay the correct image over the existing template which is based on the Enabled property?

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  • Connecting Named SQL Server Express 2005 from MySQL Migration Toolkit 1.1.10

    - by KoolKabin
    Hi guys, I am trying to migrate SQL Server Express 2005 database to mysql. I came across the mysql migration toolkit. When i started with the tool it asked for my sql server express information. I provided all the information of the sql express but it still can't connect. My machine has got 1.) SQL Server 2000 [Default instance eg computername ] 2.) SQL Server Express 2005 [Default Named Instance eg computername$SQLExpress ] *I can make easy connection from Microsoft SQL Server Management Studio. I am getting problem only while connecting from MySQl Migration toolkit 1.1.10

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  • jQuery's next() on elements not next to each other

    - by Rio
    I have bits of horrible code I have to deal with ... <div class="container"> ... <tr> <td width="100" height="50"> <a class="swaps"><img src="http://www.blah.jpg" alt="Some Title" id="1"></a></span></td> </tr> <tr> <td width="100" height="50"> <a class="swaps"><img src="http://www.blah2.jpg" alt="Another title" id="2"></a></span></td> </tr> </div> If I use var thisone = $("#container .swaps:first") to select the first one (with id 1) why do I have trouble selecting thisone.next()?

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