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• This antlr example is not working properly

  - by Aftershock

  Hi, This ANTLR example does not parse input "1;" . Can you explain why? It parses "11;". grammar test; options {//language = 'CSharp2'; //language = 'Java'; output=AST; } expr : mexpr (PLUS^ mexpr)* SEMI! ; mexpr : atom (STAR^ atom)* ; atom: INT ; //class csharpTestLexer extends Lexer; WS : (' ' | '\t' | '\n' | '\r') { $channel = HIDDEN; } ; LPAREN: '(' ; RPAREN: ')' ; STAR: '*' ; PLUS: '+' ; SEMI: ';' ; protected DIGIT : '0'..'9' ; INT : (DIGIT)+ ;

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• Pass Parameter to LinqDataSource "OnSelecting" for Stored Procedure

  - by rockinthesixstring

  I'm building a semi-elaborate RadGrid where within my NestedViewTemplate I want to have a LinqDataSource that uses a Stored Procedure to get data from the database. Here's what I have so far <asp:HiddenField runat="server" ID="HiddenID" Value='<%#DataBinder.Eval(Container.DataItem, "ID")%>' /> <asp:LinqDataSource ID="LinqDataSource1" runat="server" OnSelecting="LinqDataSource_Selecting"> <WhereParameters> <asp:ControlParameter ControlID="HiddenID" PropertyName="ID" Type="String" Name="ID" /> </WhereParameters> </asp:LinqDataSource> any my Code Behind... Protected Sub LinqDataSource_Selecting(ByVal sender As Object, ByVal e As LinqDataSourceSelectEventArgs) Dim hdc As New DAL.HealthMonitorDataContext() e.Result = hdc.bt_HealthMonitor_GetByID(Integer.Parse(e.WhereParameters("ID"))) End Sub but unfortunately hdc.bt_HealthMonitor_GetByID(Integer.Parse(e.WhereParameters("ID"))) isn't playing nice... Exception Details: System.FormatException: Input string was not in a correct format.

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• Annotating axis in ggplot2

  - by mpiktas

  I am looking for the way to annotate axis in ggplot2. The example of the problem can be found here: http://learnr.wordpress.com/2009/09/24/ggplot2-back-to-back-bar-charts. The y axis of the chart (example graph in the link) has an annotation: (million euro). Is there a way to create such types of annotations in ggplot2? Looking at the documentation there is no obvious way, since the ggplot does not explicitly let you put objects outside plotting area. But maybe there is some workaround? One of the possible workarounds I thought about is using scales: data=data.frame(x=1:10,y=1:10) qplot(x=x,y=y,data=data)+scale_y_continuous(breaks=10.1,label="Millions") But then how do I remove the tick? And it seems that since ggplot does not support multiple scales, I will need to grab the output of the scale_y_continuous, when it calculates the scales automaticaly and then add my custom break and label by hand. Maybe there is a better way?

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• RPG Game loop and class structure (cocos2D for iPhone)

  - by mac_55

  I'm looking to make an RPG with Cocos2D on the iPhone. I've done a fair bit of research, and I really like the model Cocos2D uses for scenes. I can instantiate a scene, set up my characters etc. and it all works really nicely... what I have problems with is structuring a game loop and separating the code from the scenes. For example, where do I put my code that will maintain the state of the game across multiple scenes? and do I put the code for events that get fired in a scene in that scene's class? or do I have some other class that separates the init code from the logic? Also, I've read a lot of tutorials that mention changing scenes, but I've read none that talk about updating a scene - taking input from the user and updating the display based on that. Does that happen in the scene object, or in a separate display engine type class. Thanks in advance!

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• Powershell replace lose line breaks

  - by Fadrian Sudaman

  Hi, I am a newbie in powershell. I have a simple powershell script that just replace text but I found that the regex replace turn my multiline data source into a single line text when the output is produced. I want the line breaks to be preserved. Here is the dumb down version of the script. $source=(Get-Content textfile.txt) $process1 = [regex]::Replace($source, "line", "line2") $process1 | out-file -encoding ascii textfile2.txt You can create a test file call textfile.txt with simple lines like this to test it line line Some line More line here Have I missed something obvious? Thanks, Fadrian

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• Create Excel (.XLS and .XLSX) file from C#

  - by mistrmark

  What is the best tool for creating an Excel Spreadsheet with C#. Ideally, I would like open source so I don't have to add any third party dependencies to my code, and I would like to avoid using Excel directly to create the file (using OLE Automation.) The .CSV file solution is easy, and is the current way I am handling this, but I but I would like to control the output formats. EDIT: I am still looking at these to see the best alternative for my solution. Interop will work, but it requires Excel to be on the machine you are using. Also the OLEDB method is intriguing, but may not yield much more than what I can achieve with CSV files. I will look more into the 2003 xml format, but that also puts a Excel 2003 requirement on the file. I am currently looking at a port of the PEAR (PHP library) Excel Writer that will allow some pretty good XLS data and formatting and it is in the Excel_97 compatible format that all modern versions of Excel support. The PEAR Excel Writer is here: PEAR - Excel Writer

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• Installing PygraphViz on Windows, Python 2.6

  - by jbochi

  Anybody out there has successfully installed PygraphViz on Windows? Since there is not an official release for Windows, I'm trying to build it myself, but it fails to compile. I'm not the first one to face this issue, but I could not find an answer. This is the console output: C:\Python26\Lib\site-packages\pygraphviz-0.99.1>c:\python26\python.exe setup.py install library_path=C:/Program Files/Graphviz2.26.3/lib/debug/dll include_path=C:/Program Files/Graphviz2.26.3/include/graphviz running install running build running build_py running build_ext building 'pygraphviz._graphviz' extension C:\Program Files\Microsoft Visual Studio 9.0\VC\BIN\cl.exe /c /nologo /Ox /MD /W 3 /GS- /DNDEBUG "-IC:/Program Files/Graphviz2.26.3/include/graphviz" -Ic:\python 26\include -Ic:\python26\PC /Tcpygraphviz/graphviz_wrap.c /Fobuild\temp.win32-2. 6\Release\pygraphviz/graphviz_wrap.obj graphviz_wrap.c warning: I don't know what to do with 'runtime_library_dirs': ['C:/Program Files /Graphviz2.26.3/lib/debug/dll'] error: don't know how to set runtime library search path for MSVC++ Any help would be appreciated!

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• mysql query using jdbc

  - by S.PRATHIBA

  Hi all, I have the following table: Service_ID feedback 31 1 32 1 33 1 1 I have the sample code to find the sum: ResultSet res = st.executeQuery("SELECT Service_ID,SUM(consumer_feedback) FROM consumer5 group by Service_ID"); while (res.next()) { int data=res.getInt(1); System.out.println(data); System.out.println("\n\n"); int c1 = res.getInt(2); e[m]=res.getInt(2); System.out.println("\n \n m is "+m+" e[m] is "+e[m]); if(e[m]<0) e[m]=0; m++; System.out.print(c1); System.out.println("\t\t"); } i have to get the output as 31 1 32 1 33 1 I am getting it.But for my project i have 34,35 also.I should get theoutput as 31 1 32 1 33 1 34 0 35 0

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• How to escape forward slash?

  - by AndrewB

  I have the following sql command through code and because the parameter contains a forward slash when I evaluate the sql row after the update the column is just empty. sqlCommand.CommandText = String.Format("update {0} set {1}='{2}'where id = @Id", tableName, ColumnName, forwardSlashText); sqlCommand.Parameters.Add("@Id", SqlDbType.UniqueIdentifier).Value = rowId; numRowsAffected = sqlCommand.ExecuteNonQuery(); adding a log.debug to this command i get the following output... update my_table_name set mime_type='application/pdf' where id = @Id So i would assume that the command is correct, but then looking at the row the mime_type column is empty.

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• C# LINQ Oracle date Functions

  - by user1079925

  I am trying to generate a sql statement to be used in Oracle11g, using linq. The problem arises when using dates: The SQL generated by linq gives SELECT * FROM <table> WHERE start_date > '24/11/2012 00:00:00' and end_date < '28/11/2012 00:00:00' This causes an oracle error: ORA-01830 - date format picture ends before converting entire input string Adding TO_DATE to the query fixes the ORA-01830, as it is converting the string to a oracle date whilst now knowing the date format. SELECT * FROM <table> WHERE start_date > TO_DATE('24/11/2012 00:00:00','DD/MM/YYYY HH24:MI:SS') and end_date < TO_DATE('28/11/2012 00:00:00','DD/MM/YYYY HH24:MI:SS') So, is there a way to add TO_DATE to LINQ (for oracle)? If not, please tell me how to work around this issue. Thanks

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• How can specific type details be filtered from Dia2Dump ?

  - by Usman

  Hello, I need to filter details of specific Type(i.e Custom Type) . DIA2Dump blindly dump everything as type. I need to give it specific custom type as string and as result need all data members(i.e data section of that class). Is there any specific function available in DIA SDK for this. say I have Custom type MyClass and it has 4 variables as data members i.e DWORD data, DWORD location, BOOL MachineType and FLOAT Price. Now I should be able to pass MyClass as in parameter and it should output as data members(listed above as data,location...) of this class. How..?? Regards Regards Usman

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• WPF Custom Control - ItemsControl template not being applied.

  - by Patrick White

  I'm building a custom WPF control that derives from TabControl. In the ControlTemplate, I'm using a ItemsControl to display a list that is being bound from the template (an observable collection of type FileMenuItem). During program execution, I'm getting the following error in the output window: ItemTemplate and ItemTemplateSelector are ignored for items already of the ItemsControl's container type; Type='FileMenuItem' The type FileMenuItem is derived from MenuItem. I googled the error and couldn't find anything about it, has anyone run into this while developing custom controls? I can post more code if it would help. Thanks!

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• How to tell .htaccess to ignore a subdirectory (or, how to run WordPress and ExpressionEngine simult

  - by Mike Crittenden

  I have an ExpressionEngine site at http://example.com and a WordPress blog at http://example.com/blog ...the problem is, any WP pages that don't map directly to an index.php end up being handled by ExpressionEngine, which results in a 404. For example, http://example.com/blog and http://example.com/blog/wp-admin both work fine as they both directly use an index.php in those folders, but http://example.com/blog/category/tag/something gets handled by ExpressionEngine. So how can I modify the ExpressionEngine .htaccess file to tell it to ignore anything in the /blog directory? Here's what's currently in the ExpressionEngine .htaccess file: Options +FollowSymLinks RewriteEngine On ##### Remove index.php ###################################### RewriteCond %{REQUEST_FILENAME} !-f RewriteCond %{REQUEST_FILENAME} !-d RewriteRule ^(.*)$ /index.php/$1 [L] ##### Add WWW ############################################### RewriteCond %{HTTP_HOST} ^getregionalcash.com [NC] RewriteRule ^(.*)$ http://www.getregionalcash.com/$1 [R=301,NC] ##### Increase File Limit Size ############################## #set max upload file size php_value upload_max_filesize 20M #set max post size php_value post_max_size 20M #set max time script can take php_value max_execution_time 6000000 #set max time for input to be recieved php_value max_input_time 6000000 #increase php memory limit php_value memory_limit 64M Any ideas?

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• What does the caret operator in Python do?

  - by Fry

  I ran across the caret operator in python today and trying it out, I got the following output: >>> 8^3 11 >>> 8^4 12 >>> 8^1 9 >>> 8^0 8 >>> 7^1 6 >>> 7^2 5 >>> 7^7 0 >>> 7^8 15 >>> 9^1 8 >>> 16^1 17 >>> 15^1 14 >>> It seems to be based on 8, so I'm guessing some sort of byte operation? I can't seem to find much about this searching sites other than it behaves oddly for floats, does anybody have a link to what this operator does or can you explain it here?

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• Weak-linking with static libraries

  - by Jaakko L.

  I have declared an external function with a GCC weak attribute in a .c file: extern int weakFunction( ) __attribute__ ((weak)); Compiled object file has weakFunction defined as a weak symbol. Output of nm: 1791: w weakFunction I am calling the weak defined function as follows: if (weakFunction != NULL) { weakFunction(); } When I link the program by defining the object files as parameters to GCC (gcc main.o weakf.o -o main.exe) weak symbols work fine. If I leave the weakf.o out of linking, the function address is NULL in main.c and the function won't be called. Problem is, when weakf.o is inside a static library, for some reason the linker doesn't find the function and the function address always ends up being NULL. Static library is created with ar: ar rcs weaklibrary weakf.o Anyone had similar problems?

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• What jquery code or plugin would I use to update the position of an element?

  - by Breadtruck

  I am using a jquery plugin from [ FilamentGroup ] called DateRangePicker. I have a simple form with two text inputs for the start and end date that I bind the DateRangePicker to using this $('input.tbDate').daterangepicker({ dateFormat: 'mm/dd/yy', earliestDate: new Date(minDate), latestDate: new Date(maxDate), datepickerOptions: { changeMonth: true, changeYear: true, minDate: new Date(minDate), maxDate: new Date(maxDate) } }); I have a collapsible table above this form that when shown, moves the form and the elements that the daterangepicker plugin is bound to, down lower on the page, but the daterangepicker appears to keep the position from when it was actually created. What code could I put in the daterangepicker's onShow Callback to update its position to be next to the element is was initially bound to? Or is there some specific jquery method or plugin that I could chain to the daterangepicker plugin so that it will update its position correctly. This would come in handy for some other plugins that I use that don't seem to keep their position relative to other elements correctly either.

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• JPA Entity (in multiple persistence-unit) in OSGi (Spring DM) Environnement is confusing me.

  - by Vincent Demeester

  Hi, I'm a bit confused about a strange behavior of my JPA's related objects. I have three bundle : The User bundle does contain some user-related objects, but mainly the User object. The Energy bundle does contain some energy-related objects, and particularly a ConsumptionTerminal which contains a List of User. The Index bundle does contain an Index object that has no dependency at all. My OSGi environment is the following : A DataSource bundle that provide 2 services : dataSource and jpaVendorAdapter. The three bundles. They consume dataSource and jpaVendorAdapter. Their module-context.xml file look like : And they all have a persistence.xml file : User <?xml version="1.0" encoding="UTF-8"?> <persistence> <persistence-unit name="securityPU" transaction-type="JTA"> <jta-data-source>java:/securityDataSourceService</jta-data-source> <class>net.nextep.amundsen.security.domain.User</class> <!-- [...] --> <exclude-unlisted-classes>true</exclude-unlisted-classes> <properties> <property name="eclipselink.logging.level" value="INFO" /> <property name="eclipselink.ddl-generation" value="create-tables" /> <property name="eclipselink.ddl-generation.output-mode" value="database" /> <property name="eclipselink.orm.throw.exceptions" value="true" /> </properties> </persistence-unit> </persistence> Energy <?xml version="1.0" encoding="UTF-8"?> <persistence> <persistence-unit name="energyPU" transaction-type="JTA"> <jta-data-source>java:/securityDataSourceService</jta-data-source> <class>net.nextep.amundsen.security.domain.User</class> <class>net.nextep.amundsen.energy.domain.User</class> <!-- [...] --> <exclude-unlisted-classes>true</exclude-unlisted-classes> <properties> <property name="eclipselink.logging.level" value="INFO" /> <property name="eclipselink.ddl-generation" value="create-tables" /> <property name="eclipselink.ddl-generation.output-mode" value="database" /> <property name="eclipselink.orm.throw.exceptions" value="true" /> </properties> </persistence-unit> </persistence> Index : This one has the most simple persistence.xml with just the Index class (no shared Class). I'm using named @PersistenceUnit annotation like @PersitenceUnit(name = 'securityPU') (for the User bundle). And finally, I'm using EclipseLink as Jpa provider and Spring DM (+ Spring DM Server in the development process) The problem is the following : When the User bundle is deployed, I'm able to persist User objects. When the User bundle and Energy bundles are both deployed, I'm not able to persist User objects (neither the Energy object). But I don't have any exception at all ! There is no problem at all with the Index bundle. The bug is dataSource independent (I tried with PostgreSQL and MySQL so far). My first conclusion was that the <class>net.nextep.amundsen.security.domain.User</class> in both persistence unit was causing the trouble. I tried without it (and hiding the User dependent object in the Energy bundle) but it failed too. I'm a bit confused about that bug. I'm also not quite sure about the transaction management in this context. I wasn't the one who designed this architecture (but I tell my intern OK without testing it.. shame on me) but if I could understand this bug and maybe fix it without rewrite the bundle (and break my intern work), I would appreciate. Am I doing something wrong ? (it's obvious, but what..) Did I miss something while reading documentation ? By the way, I'm also looking for some best practices or advices when it comes to JPA, EclipseLink (or whatever JPA Provider) and Spring DM (and OSGi in general). I found interesting slides from Mike Keith about this topic (by browsing Stackoverflow).

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• Why are ASP.Net MVC2 area controller actions callable without including the area in the url path?

  - by Nathan Ridley

  I've just installed Visual Studio 2010 and have created a new MVC2 project so that I can learn about the changes and updates and have discovered an issue with areas that I'm not sure what to make of. I created a new EMPTY MVC2 project I right clicked the project and, from the context menu, added a new area called "Test" In the new test area, I added a controller called "Data". The code is: public class DataController : Controller { // // GET: /Test/Data/ public ActionResult Index() { Response.Write("Hi"); return new EmptyResult(); } } Now, I compile and call this address: http://localhost/mytest/test/data and get the output: Hi All good. Now I call this: http://localhost/mytest/data and get the same response! I thought routing was supposed to take care of this? Am I overlooking something? Or has the default project setup for MVC2 overlooked something?

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• jQuery, insertBefore, validation, Placement of error message

  - by Steve

  I am using insertBefore under errorplacement to add validation messages, each one below each other as I want the order of the messages to go from top to bottom. I am using a hidden input at the very bottom of a parent element in order to supply an element for the insertBefore argument. Is there a way to insert from the bottom without using the dummy hidden element? If I use absolute positioning, there is a possibility for white space, for example 3 stacked messages, the middle one missing since there is no collapsing with absolute positioning.

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• Can I ReRender a JSF Component from backing bean code?

  - by Ben

  Hi, Can I rerender a jsf ui component when a valuechangelistener method is run? The reason i'm asking is that my valuechangelistener method changes the values of the input boxes but when I run it, they don't seem to be rerender. The following doesn't work: <h:inputText id="inputbox_id"/> <h:selectOneMenu valueChangeListener="#{myBean.changeCountryMenu}"> <a4j:support event="onchange" rerender="inputbox_id" action="#{bean.test}> </h:selectOneMenu> Notice that bean.test() is never run. So the solution I thought of is to rerender the inputbox from the valueChangeListener. If there is some other better solution i'd be glad to hear... Thank you! Ben.

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• Crontab no error but doesn't execute script

  - by crontabOnFreebsd

  I'm trying to execute a shell script from cron on Freebsd. To test wether crontab is working at all, i wrote the line * * * * * echo "Hello" /home/myuser/logile and it work fine. But when trying to execute any script it doesn't do anything, not even an error. (In the script i tried to run is just the same echo command) Below is the output of crontab -l: SHELL=/bin/sh PATH=/etc:/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin HOME=/home/myuser MAILTO=myuser * * * * * /home/myuser/shellscript.sh /home/myuser/logfile why is the script not getting executed, although crontab is obviously running? permission for all files are set to rwxr-xr-x

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• Graphing perpendicular offsets in a least squares regression plot in R

  - by D W

  I'm interested in making a plot with a least squares regression line and line segments connecting the datapoints to the regression line as illustrated here in the graphic called perpendicular offsets: http://mathworld.wolfram.com/LeastSquaresFitting.html I have the plot and regression line done here: ## Dataset from http://www.apsnet.org/education/advancedplantpath/topics/RModules/doc1/04_Linear_regression.html ## Disease severity as a function of temperature # Response variable, disease severity diseasesev<-c(1.9,3.1,3.3,4.8,5.3,6.1,6.4,7.6,9.8,12.4) # Predictor variable, (Centigrade) temperature<-c(2,1,5,5,20,20,23,10,30,25) ## Fit a linear model for the data and summarize the output from function lm() severity.lm <- lm(diseasesev~temperature,data=severity) # Take a look at the data plot( diseasesev~temperature, data=severity, xlab="Temperature", ylab="% Disease Severity", pch=16 ) abline(severity.lm,lty=1) title(main="Graph of % Disease Severity vs Temperature") Should I use some kind of for loop and segments http://www.iiap.res.in/astrostat/School07/R/html/graphics/html/segments.html to do the perpendicular offsets? Is there a more efficient way? Please provide an example if possible.

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• Getting ActiveRecord (Rails) to_xml to use xsi:nil and xsi:type instead of nil and type

  - by nbeyer

  The default behavior of XML serialization (to_xml) for ActiveRecord objects will emit 'type' and 'nil' attributes that are similar to XML Schema Instance attributes, but aren't set in a XML Namespace. For example, a model might produce an output like this: <user> <username nil="true" /> <first-name type="string">Name</first-name> </user> Is there anyway to get to_xml to utilize the XML Schema Instance namespace and prefix the attributes and the values? Using the above example, I'd like to produce the following: <user xmlns:xsi="http://www.w3.org/1999/XMLSchema-instance" xmlns:xs="http://www.w3.org/1999/XMLSchema"> <username xsi:nil="true" /> <first-name xsi:type="xs:string">Name</first-name> </user>

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• Is learning the Caché database hard coming from relational databases and object oriented programming

  - by Edelcom

  I am currently running the local version of Caché on my system in order to determine if I can (and will) take on a new possible project. The current project uses Delphi 7 as a front end calling a Caché dll where the business logic is stored in the database. I have a background of Sqlserver and Firebird (and before Access and Paradox) as databases. I use Delphi 7 for 95% of my Windows development, so I know about object programming. I would like to recieve opinions from persons having used Caché and either SqlServer, Firebird or Oracle and having developed in Delphi (or C++ or C# - an object oriented language). I have read the pro's and con's from other questions, but I am not asking for this, I need input from Caché developers. Thanks in advance.

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• jQuery datepicker causes page overflow

  - by nc3b

  I am using the datepicker control from jQuery-ui 1.8. from-date is a text input. I am attaching a very simple datepicker: $('#from-date').datepicker(); This causes the page to overflow (vertical scrollbar), which I am trying to avoid. As soon as I click the from-date, the datepicker control appears, and the scrollbar dissapears. After dismissing the datepicker, the scrollbar doesn't appear anymore. The text field is inside a div that has overflow:auto and a fixed height and width. I suspect it's a z-index issue. What am I doing wrong ? How would I debug this ?

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