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• GWT - RichTextArea - ScrollTo

  - by Yanick Rochon

  If I have an RichTextArea like this : RichTextArea rta = new RichTextArea(); rta.setHTML("<p id=\"foo\">Foo</p>....<p id=\"bar\">Bar</p>"); If I extend the RichTextArea class, how would be the proper way (cross-browser wise) to write a scrollTo() method? Ex: class RichTextAreaExt extends RichTextArea { ... public native void scrollTo(String element) /*-{ // the underlaying DOMElement is an iframe, so.... }-*/; ... } Thanks!

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• Avoiding class_eval in Ruby metaprogramming

  - by Peter

  I want to have a return_empty_set class method in Ruby, similar to the attr_reader methods. My proposed implementation is class Class def return_empty_set *list list.each do |x| class_eval "def #{x}; Set.new; end" end end end and example usage: class Foo return_empty_set :one end Foo.new.one # returns #<Set: {}> but resorting to a string seems like quite a hack. Is there a cleaner or better way to write this, perhaps avoiding class_eval? Or is this the best way to go?

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• What coding standards do you follow?

  - by Mark Szymanski

  I was just curious what coding standards people followed. I for one use the following: Brackets ALWAYS go on the next line. For instance: int main() { //Blah... } I never use code folding. (Yes my IDE's do support it (Xcode and Eclipse). Put related functions/methods single-spaced, otherwise double space. Here is an example: int foo = 0; printf("%d",foo); those are related while these are not: printf("Hello, World!"); return(0); I don't put else statements on the same line as the closing bracket for the preceding if statement. Most of the time in Java if a program needs multiple try catch statements I will just put the whole thing in one try catch.

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• Send javax.mail.internet.MimeMessage to a recipient with non-ASCII name?

  - by phyzome

  I am writing a piece of Java code that needs to send mail to users with non-ASCII names. I have figured out how to use UTF-8 for the body, subject line, and generic headers, but I am still stuck on the recipients. Here's what I'd like in the "To:" field: "????????????" <[email protected]>. This lives (for our purposes today) in a String called recip. msg.addRecipients(MimeMessage.RecipientType.TO, recip) gives "?????S]" <[email protected]> msg.addHeader("To", MimeUtility.encodeText(recip, "utf-8", "B")) throws AddressException: Local address contains control or whitespace in string ``=?utf-8?B?IuOCpuOCo+OCreODmuODh+OCo+OCouOBq+OCiOOBhuOBk+OBnSIgPA==?= =?utf-8?B?Zm9vQGV4YW1wbGUuY29tPg==?='' How the heck am I supposed to send this message?

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• C: Incompatible types?

  - by Airjoe

  #include <stdlib.h> #include <stdio.h> struct foo{ int id; char *bar; char *baz[6]; }; int main(int argc, char **argv){ struct foo f; f.id=1; char *qux[6]; f.bar=argv[0]; f.baz=qux; // Marked line return 1; } This is just some test code so ignore that qux doesn't actually have anything useful in it. I'm getting an error on the marked line, incompatible types when assigning to type ‘char *[6]’ from type ‘char **’ but both of the variables are defined as char *[6] in the code. Any insight?

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• HTML tables in JTextPane showing weird "form" boxes

  - by Ted

  import java.awt.BorderLayout; import java.awt.EventQueue; import javax.swing.JFrame; import javax.swing.JPanel; import javax.swing.JTextPane; import javax.swing.border.EmptyBorder; import javax.swing.text.Document; import javax.swing.text.html.HTMLEditorKit; import javax.swing.text.html.StyleSheet; public class htmlEditor2 extends JFrame { private JPanel contentPane; public static void main(String[] args) { EventQueue.invokeLater(new Runnable() { public void run() { try { htmlEditor2 frame = new htmlEditor2(); frame.setVisible(true); } catch (Exception e) { e.printStackTrace(); } } }); } public htmlEditor2() { setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); setBounds(100, 100, 450, 300); contentPane = new JPanel(); contentPane.setBorder(new EmptyBorder(5, 5, 5, 5)); contentPane.setLayout(new BorderLayout(0, 0)); setContentPane(contentPane); Foo f = new Foo(); f.setText("<html><body><table border=\"1\" width=\"985\" cellpadding=\"3\" cellspacing=\"0\" style=\"table-layout: fixed; border-collapse: collapse; border-width: 0px; border-color: #010101; \"><colgroup><col width=\"328\"></col> <col width=\"328\"></col> <col width=\"328\"></col> </colgroup><tr><td align=\"left\" valign=\"top\" width=\"321\" style=\"border: solid #010101 1px; \"><div align=\"left\"><font face=\"Arial\"><span style=\"font-size:8pt\">row 1</span></font></div></td><td align=\"left\" valign=\"top\" width=\"321\" style=\"border: solid #010101 1px; \"><div align=\"left\"><font face=\"Arial\"><span style=\"font-size:8pt\">row2</span></font></div></td><td align=\"left\" valign=\"top\" width=\"321\" style=\"border: solid #010101 1px; \"><div align=\"left\"><font face=\"Arial\"><span style=\"font-size:8pt\">row3</span></font></div></td></tr><tr><td align=\"left\" valign=\"top\" width=\"321\" style=\"border: solid #010101 1px; \"><div align=\"left\"><span style=\"font-size: 8pt;\">&nbsp;</span></div></td><td align=\"left\" valign=\"top\" width=\"321\" style=\"border: solid #010101 1px; \"><div align=\"left\"><span style=\"font-size: 8pt;\">&nbsp;</span></div></td><td align=\"left\" valign=\"top\" width=\"321\" style=\"border: solid #010101 1px; \"><div align=\"left\"><span style=\"font-size: 8pt;\">&nbsp;</span></div></td></tr><tr><td align=\"left\" valign=\"top\" width=\"321\" style=\"border: solid #010101 1px; \"><div align=\"left\"><span style=\"font-size: 8pt;\">&nbsp;</span></div></td><td align=\"left\" valign=\"top\" width=\"321\" style=\"border: solid #010101 1px; \"><div align=\"left\"><span style=\"font-size: 8pt;\">&nbsp;</span></div></td><td align=\"left\" valign=\"top\" width=\"321\" style=\"border: solid #010101 1px; \"><div align=\"left\"><span style=\"font-size: 8pt;\">&nbsp;</span></div></td></tr></table><div align=\"left\">&nbsp;&nbsp;</div></body></html>"); contentPane.add(f); } class Foo extends JTextPane { public Foo() { super(); HTMLEditorKit kit = new HTMLEditorKit(); setEditorKit(kit); StyleSheet styleSheet = kit.getStyleSheet(); styleSheet.addRule(""); //in case I need to add a CSS Document doc = kit.createDefaultDocument(); setDocument(doc); } } } I would paste a nicely formatted version of the html, but I'm not sure how to do it on here... So yeah.. I just want to know how to get rid of those weird colgroup and col boxes in my table and how to make the table work normally! Thanks yall!

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• How do I temporarily change the require path in Ruby ($:)?

  - by John Feminella

  I'm doing some trickery with a bunch of Rake tasks for a complex project, gradually refactoring away some of the complexity in chunks at a time. This has exposed the bizarre web of dependencies left behind by the previous project maintainer. What I'd like to be able to do is to add a specific path in the project to require's list of paths to be searched, aka $:. However, I only want that path to be searched in the context of one particular method. Right now I'm doing something like this: def foo() # Look up old paths, add new special path. paths = $: $: << special_path # Do work ... bar() baz() quux() # Reset. $:.clear $: << paths end def bar() require '...' # If called from within foo(), will also search special_path. ... end This is clearly a monstrous hack. Is there a better way?

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• Incorrect emacs indentation in a C++ class with DLL export specification

  - by Michael Daum

  I often write classes with a DLL export/import specification, but this seems to confuse emacs' syntax parser. I end up with something like: class myDllSpec Foo { public: Foo( void ); }; Notice that the "public:" access spec is indented incorrectly, as well as everything that follows it. When I ask emacs to describe the syntax at the beginning of the line containing public, I get a return of: ((label 352)) If I remove the myDllSpec, the indentation is correct, and emacs tells me that the syntax there is: ((inclass 352) (access-label 352)) Which seems correct and reasonable. So I conclude that the syntax parser is not able to handle the DLL export spec, and that this is what's causing my indentation trouble. Unfortunately, I don't know how to teach the parser about my labels. Seems that this is pretty common practice, so I'm hoping there's a way around it.

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• routine to generate a 2d array from two 1d arrays and a function

  - by intuited

  I'm guessing that there's a word for this concept, and that it's available in at least some popular languages, but my perfunctory search was fruitless. A pseudocode example of what I'd like to do: function foo(a, b) { return a * b // EG } a = [ 1, 2, 3 ] b = [ 4, 5, 6 ] matrix = the_function_for_which_I_search(foo, [a, b] ) print matrix => [ [ 4, 8, 12], [5, 10, 15], [6, 12, 18] ] // or function concatenate(a,b) return a.b } print the_function_for_which_I_search( concatenate, [ a, b ]) => [ [ '14', '24', '34'], ['15', '25', '35'], [16', '26', '36'] ] In other words, function_for_which_I_search will apply the function given as its first argument to each combination of the elements of the two arrays passed as its second argument, and return the results as a two-dimensional array. I would like to know if such a routine has a common name, and if it's available in a python module, cpan package, ruby gem, pear package, etc. I'm also wondering if this is a core function in other languages, maybe haskell or R?

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• How do I pass a function to NUnit Throws.Constraints?

  - by Serge Belov

  I'm trying to write some NUnit tests in F# and having trouble passing a function to the ThrowsConstraint. A distilled (non)working sample is below. open System.IO open NUnit.Framework [<TestFixture>] module Example = [<Test>] let foo() = let f = fun () -> File.GetAttributes("non-existing.file") Assert.That(f, Throws.TypeOf<FileNotFoundException>()) This compiles just fine but I get the following from the NUnit test runner: FsTest.Tests.Example.foo: System.ArgumentException : The actual value must be a TestDelegate but was f@11 Parameter name: actual While I'm able to work around the problem using ExpectedException attribute, my question is what is the correct way of using an F# function in this situation?

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• WordPress sub domain htacess problem

  - by user260165

  Well i did a wordpress installation with the newer version now avaialble at dere website.. i did my installation at a subdomain : foo.abc.com the problem came with the permalink which do not work dere bec of the htaccess file. Can any one suggest me how to do that, i need to have only the category/postname Till now i am able to do foo.abc.com/index.php/category/postname - i dont want index.php in it. I have used this htacess file : disable the rewrite engine RewriteEngine on BEGIN WordPress RewriteEngine On RewriteBase /blog/ RewriteCond %{REQUEST_FILENAME} !-f RewriteCond %{REQUEST_FILENAME} !-d RewriteRule . /blog/index.php [L] RewriteRule ^post/([0-9]+)?/?([0-9]+)?/?$ /index.php?p=$1&page=$2 [QSA] END WordPress Please correct me if possible. thanks

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• How to select elements from a set that are children of another element

  - by Tatu Ulmanen

  Hi, The title is a bit confusing but here's what I'm after: I have a set of elements containing all the h3 elements in a page. In jQuery terms: var mySet = $('h3'). I also have an div element var myContainer = $('div#foo') I need to find all items in the set mySet that are children of myContainer. Any ideas? I bet there's some magical one liner for this but I cannot think of any. I'd rather not loop through every element in the set manually and use .closest(myContainer) or something like that to determine the relationship. Note that in my scenario, I cannot use a new selector like $('div#foo h3') (that would be too easy) as I don't have access to the actual selector values. So it has to be dynamic.

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• Test for undefined references in Linux

  - by Charles

  Is there a built in linux utility that I can use to test a newly compiled shared library for external undefined references? Gcc seems to be intelligent enough to check for undefined symbols in my own binary, but if the symbol is a reference to another library gcc does not check at link time. Instead I only get the message when I try to link to my new library from another program. It seems a little silly to get undefined reference messages in a library when I am compiling a different project so I want to know if I can do a check on all references internal and external when I build the library not when I link to it. Example error: make -C UnitTests debug make[1]: Entering directory `~/projects/Foo/UnitTests` g++ [ tons of objects ] -L../libbar/bin -lbar -o UnitTests libbar.so: undefined reference to `DoSomethingFromAnotherLibrary` collect2: ld returned 1 exit status make[1]: *** [~/projects/Foo/UnitTests] Error 1

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• Modify Address of asmx Method Call

  - by Adam

  When I'm making asmx web service calls from Silverlight, is there any way to have the (generated) SoapClient objects modify the address that they call the service on? Specifically, I'd like to tack on a QueryString value onto each call that the service makes. So if I have DataService.SilverlightServiceSoapClient C = new DataService.SilverlightServiceSoapClient(); Is there any way to do something like: C.Address += "?Foo=Bar"; Which would allow me to, from my WebMethod, say: HttpContext.Current.Request.QueryString["foo"]; Obviously I can modify my WebMethods to take this value in as a parameter, but I'd like to avoid doing that if possible.

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• Eclipse call hierarchy skips calls in undefined #ifdef regions

  - by stupakov

  Hi all, The "call hierarchy" and "declaration" features in Eclipse CDT omit results that exist in undefined (greyed out) #ifdef regions. Example: void blah(void) { #ifndef ABC foo(); #else //line is greyed out bar(); //line is greyed out #endif //line is greyed out } The call hierarchy for foo() will list blah() as a caller; the call hierarchy for bar() will not list blah(). I'm not expecting it to do full resolution of which #define blocks will get compiled, I simply would like it to return all calls/declarations of the function I'm searching for, regardless of the #define blocks that surround it. Other IDEs such as SlickEdit are able to do this. Does anyone know of a way to get Eclipse to adopt this behavior? Thanks.

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• Need help with jQuery UI Accordion navigationFilter option

  - by theJBRU

  I'm building an accordion for navigation. Each section of the accordion has a set of links. The firing code looks like this: $(document).ready(function() { $(".selector").accordion({ collapsible: true, active: false, navigation: true }); }); This all worked fine and dandy until one of the links in each set was edited to point to a single file, call it foo.html. So now if you navigate to foo.html, the location.href matches every section of the accordion (since each section has a link to it) and that opens all the sections, defeating the purpose of the accordion. So I'm pretty sure I need to use the navigationFilter option but I've googled the living hell out of it and haven't found any examples of how to build the function associated with it. Help me, Stack Overflow!

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• Problem configuring application specific loggin glassfish v3

  - by Shane

  I am using java.util.logging in an EJB application running on glassfish v3. I can see the log messages in server.log but i don't seem to be able to configure the logging level in glassfish\domains\domain1\logging.properties. If I use: Logger logger = Logger.getLogger("com.foo"); To obtain the logger and log with: logger.info("message"); then I expect that if I set com.foo.level=WARNING in logging.properties then the message should not logged. Am I doing something wrong here?

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• Get a string sequence from a node-set in xpath 1.0

  - by Miguel

  I'm using xpath 1.0 to parse an html file and I want to get a string sequence from a node-set. First I select a node-set (eg: //div) and then I want the string-value of each node of the set. I've tried with string(//div) but it only returns the string-value of the first node in the set. Example <foo> <div> bbbb<p>aaa</p> </div> <div> cccc<p>aaa</p> </div> </foo> I expect a result like ('bbbbaaa', 'ccccaaa') but I only get 'bbbaaa'

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• Constructing mocks in unit tests

  - by Flynn1179

  Is there any way to have a mock constructed instead of a real instance when testing code that calls a constructor? For example: public class ClassToTest { public void MethodToTest() { MyObject foo = new MyObject(); Console.WriteLine(foo.ToString()); } } In this example, I need to create a unit test that confirms that calling MethodToTest on an instance of ClassToTest will indeed output whatever the result of the ToString() method of a newly created instance of MyObject. I can't see a way of realistically testing the 'ClassToTest' class in isolation; testing this method would actually test the 'myObject.ToString()' method as well as the MethodToTest method.

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• Simple string parsing with C++

  - by Andreas Brinck

  I've been using C++ for quite a long time now but nevertheless I tend to fall back on scanf when I have to parse simple text files. For example given a config like this (also assuming that the order of the fields could vary): foo: [3 4 5] baz: 3.0 I would write something like: char line[SOME_SIZE]; while (fgets(line, SOME_SIZE, file)) { int x, y, z; if (3 == sscanf(line, "foo: [%d %d %d]", &x, &y, &z)) { continue; } float w; if (1 == sscanf(line, "baz: %f", &w)) { continue; } } What's the most concise way to achieve this in C++? Whenever I try I end up with a lot of scaffolding code.

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• Trouble assigning a tr1::shared_ptr

  - by Max

  I've got a class that has a tr1::shared_ptr as a member, like so: class Foo { std::tr1::shared_ptr<TCODBsp> bsp; void Bar(); } In member function Bar, I try to assign it like this: bsp = newTCODBsp(x,y,w,h); g++ then gives me this error no match for ‘operator=’ in ‘((yarl::mapGen::MapGenerator*)this)->yarl::mapGen::MapGenerator::bsp = (operator new(40u), (<statement>, ((TCODBsp*)<anonymous>)))’ /usr/include/c++/4.4/tr1/shared_ptr.h:834: note: candidates are: std::tr1::shared_ptr<TCODBsp>& std::tr1::shared_ptr<TCODBsp>::operator=(const std::tr1::shared_ptr<TCODBsp>&) in my code, Foo is actually yarl::mapGen::MapGenerator. What am I doing wrong?

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• Why the difference in speed?

  - by AngryHacker

  Consider this code: function Foo(ds as OtherDLL.BaseObj) dim lngRowIndex as long dim lngColIndex as long for lngRowIndex = 1 to ubound(ds.Data, 2) for lngColIndex = 1 to ds.Columns.Count Debug.Print ds.Data(lngRowIndex, lngColIndex) next next end function OK, a little context. Parameter ds is of type OtherDLL.BaseObj which is defined in a referenced ActiveX DLL. ds.Data is a variant 2-dimensional array (one dimension carries the data, the other one carries the column index. ds.Columns is a Collection of columns in 'ds.Data`. Assuming there are at least 400 rows of data and 25 columns, this code takes about 15 seconds to run on my machine. Kind of unbelievable. However if I copy the variant array to a local variable, so: function Foo(ds as OtherDLL.BaseObj) dim lngRowIndex as long dim lngColIndex as long dim v as variant v = ds.Data for lngRowIndex = 1 to ubound(v, 2) for lngColIndex = 1 to ds.Columns.Count Debug.Print v(lngRowIndex, lngColIndex) next next end function the entire thing processes in barely any noticeable time (basically close to 0). Why?

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• How to get HTML of HtmlControl object in backend

  - by jlech

  I have a short snippet of C# code like this: HtmlGenericControl titleH3 = new HtmlGenericControl("h3"); titleH3.Attributes.Add("class", "accordion"); HtmlAnchor titleAnchor = new HtmlAnchor(); titleAnchor.HRef = "#"; titleAnchor.InnerText = "Foo Bar"; titleH3.Controls.Add(titleAnchor); What I want is a way to return a string that looks like this: <h3 class="accordion"><a href="#">Foo Bar</a></h3> Any thoughts or suggestions?

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• LuaInterface - how to register overloaded methods?

  - by JeffreySadeli

  Hello world! I'm trying to integrate Lua to my C# app when I hit a little snag. I was hoping someone with more expertise could help point me to the right direction. Let's say I have the following C# methods: public void MyMethod(int foo) { ... } public void MyMethod(int foo, int bar) { ... } I would like to register it to my Lua script environment so that I can do something like this: -- call method with one param MyMethod(123) -- call method with two params MyMethod(123, 456) I tried RegisterFunction("MyMethod", this, this.GetType().GetMethod("MyMethod")) but it reasonably complains about ambiguous match. Any ideas?

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• Use 'let' in 'if' expression

  - by demas

  I need a function that works like this: foo :: Integer -> Integer -> [Integer] foo a b = do let result = [] let Coord x y = boo a b if x > 0 let result = result ++ [3] if y > 0 let result = result ++ [5] if x < a let result = result ++ [7] if y < b let result = result ++ [9] result I can not use the guards because the result can have more then one element. But as I see I can not use 'let' in the 'if' expression: all_possible_combinations.hs:41:14: parse error on input `let' How can I check multiple expressions and add new elements in the list? I search not only imperative solution, but the functional one.

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