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• Python beautifulsoup trying to remove html tags 'span'

  - by Michelle Jun Lee

  I am trying to remove [<span class="street-address"> 510 E Airline Way </span>] and I have used this clean function to remove the one that is in between < > def clean(val): if type(val) is not StringType: val = str(val) val = re.sub(r'<.*?>', '',val) val = re.sub("\s+" , " ", val) return val.strip() and it produces [ 510 E Airline Way ]` i am trying to add within "clean" function to remove the char '[' and ']' and basically i just want to get the "510 E Airline Way". anyone has any clue what can i add to clean function? thank you

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• Error using traits class.: "expected constructor destructor or type conversion before '&' token"

  - by Mark

  I have a traits class that's used for printing out different character types: template <typename T> class traits { public: static std::basic_ostream<T>& tout; }; template<> std::ostream& traits<char>::tout = std::cout; template<> std::wostream& traits<unsigned short>::tout = std::wcout; gcc (g++) version 3.4.5 (yes somewhat old) is throwing an error: "expected constructor destructor or type conversion before '&' token" And I'm wondering if there's a good way to resolve this. (it's also angry about _O_WTEXT so if anyone's got some insight into that, I'd also appreciate it)

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• Wincap capture filtering expression syntax

  - by cpx

  How would specify a syntax for filtering tcp server port with its ip address? const char *packet_filter = "tcp src port 2054"; bpf_u_int32 netmask; bpf_program fcode; if (d->addresses != NULL) /* Retrieve the mask of the first address of the interface */ netmask=((struct sockaddr_in *)(d->addresses->netmask))->sin_addr.S_un.S_addr; else /* If the interface is without an address we suppose to be in a C class network */ netmask=0xffffff; //compile the filter if (pcap_compile(adhandle, &fcode, packet_filter, 1, netmask) < 0) { fprintf(stderr,"\nUnable to compile the packet filter. Check the syntax.\n"); /* Free the device list */ pcap_freealldevs(alldevs); return -1; } //set the filter if (pcap_setfilter(adhandle, &fcode) < 0) { fprintf(stderr,"\nError setting the filter.\n"); /* Free the device list */ pcap_freealldevs(alldevs); return -1; }

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• Custom types in OpenCL kernel

  - by Studer

  Is it possible to use custom types in OpenCL kernel like gmp types (mpz_t, mpq_t, …) ? To have something like that (this kernel doesn't build just because of #include <gmp.h>) : #include <gmp.h> __kernel square( __global mpz_t* input, __global mpz_t number, __global int* output, const unsigned int count) { int i = get_global_id(0); if(i < count) output[i] = mpz_divisible_p(number,input[i]); } Or maybe does OpenCL already have types that can handle large numbers ?

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• JNA-Mapping Delphi Function

  - by Florian

  Hi! How do i map this function with JNA: Delphi code: function getData(InData1: PChar; InData2: PChar; Data: TArray16; var OutData1: PChar; var OutData2: PChar): integer; stdcall; with: TArray16 = array[0..15] of char; The int value that is returned can be 0 for Error or 1 for right execution; My suggestion is: Java code: int getData(String inData1, String inData2, byte[] data, byte[] outData1 byte[] outData2); The problem is that the function of the dll returns 0. I also tried other Datatypes, but it hasn't worked jet. I think the problem is that the dll function can't write to the parameters outData1 and outData2. Who can help me?....Thanks!!

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• Errorprovider shows error on using windows close button(X)

  - by Pankaj Kumar

  Hi guys, Is there any way to turn the damned error provider off when i try to close the form using the windows close button(X). It fires the validation and the user has to fill all the fields before he can close the form..this will be a usability issue because many tend to close the form using the (X) button. i have placed a button for cancel with causes validation to false and it also fires a validation. i found someone saying that if you use Form.Close() function validations are run... how can i get past this annoying feature. i have a MDI sturucture and show the form using CreateExam.MdiParent = Me CreateExam.Show() on the mdi parent's menuitem click and have this as set validation Private Sub TextBox1_Validating(ByVal sender As System.Object, ByVal e As System.ComponentModel.CancelEventArgs) Handles TextBox1.Validating If String.IsNullOrEmpty(TextBox1.Text) Then Err.SetError(TextBox1, "required") e.Cancel = True End If If TextBox1.Text.Contains("'") Then Err.SetError(TextBox1, "Invalid Char") e.Cancel = True End If End Sub Any help is much appreciated. googling only showed results where users were having problem using a command button as close button and that too is causing problem in my case

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• GDI+ is giving me errors

  - by user146780

  I want to use GDI + just to load a png. I included the headers and lib file then I do: Bitmap b; b.fromfile(filename); I get this from the compiler though. Error 1 error C2146: syntax error : missing ';' before identifier 'b' c:\users\josh\documents\visual studio 2008\projects\vectorizer project\vectorizer project\vectorizer project.cpp 23 Error 2 error C4430: missing type specifier - int assumed. Note: C++ does not support default-int c:\users\josh\documents\visual studio 2008\projects\vectorizer project\vectorizer project\vectorizer project.cpp 23 Error 3 error C4430: missing type specifier - int assumed. Note: C++ does not support default-int c:\users\josh\documents\visual studio 2008\projects\vectorizer project\vectorizer project\vectorizer project.cpp 23 Error 4 error C2440: '=' : cannot convert from 'const char [3]' to 'WCHAR *' c:\users\josh\documents\visual studio 2008\projects\vectorizer project\vectorizer project\vectorizer project.cpp 172 Error 5 error C2228: left of '.FromFile' must have class/struct/union c:\users\josh\documents\visual studio 2008\projects\vectorizer project\vectorizer project\vectorizer project.cpp 179 What is the correct way to do this? Thanks

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• dllimport C++ DLL In VB.net

  - by JFLow

  Hi Experts out there, I'm stuck at dll imports with the c++ dll and i really need help to get over this. Here is the function in the c++ dll that i want to call from my VB.net code. bool LoadNewTestPlan(const char* szPlanFileName=" "); I've tried many ways in my VB.net but always getting the error : "Attempted to read or write protected memory. This is often an indication that other memory is corrupt." I have tried passing in byte(), Marshalling with LPStr, SafeArray and nothing works. Here is the example of my code code within the module <DllImport("HPVKIfc.dll", EntryPoint:="?LoadNewTestPlan@HPVKIfc@@QAE_NPBD@Z", CharSet:=CharSet.Ansi)> _ Public Function LoadNewTestPlan(<MarshalAs(UnmanagedType.LPStr)> ByVal pln As String) As Boolean End Function Do you see anything wrong? Thanks in advance.

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• Objective-C : BOOL vs bool

  - by santoni

  Hi, I'm new to objective-c and I saw the "new type" BOOL (YES, NO). I read that this type is almost like a char. For testing I did : NSLog(@"Size of BOOL %d", sizeof(BOOL)); NSLog(@"Size of bool %d", sizeof(bool)); Good to see both display 1 (sometimes in C++ bool just an int and sizeof is 4) So I was just wondering I there were some issues with the bool type or something ? Can I just use bool (that seems to work) without loosing speed? Thanks for answers

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• Reading In A String and comparing it C

  - by ahref

  Im trying to create a C based string menu where a user inputs a command and then a block of code runs. Whatever i do the conditional is never true: char *input= ""; fgets(input, 50, stdin); printf("%s",input); printf("%d",strcmp( input,"arrive\0")); if(strcmp( input,"arrive\0")==0){.... Im fairly new to c and am finding strings really annoying. What am i doing wrong?

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• Flash/Flex: play embedded AAC audio?

  - by aaaidan

  I'm pretty sure of the answer, but just wanted to check with you all. Is it possible to play an embedded AAC file in Flash/Flex somehow? I know you can playback embedded MP3 files, but I hear that you can't do that with AAC. Anyone know any sneaky ways to get around this? By way of illustration, here's come code. [Embed(source='../../audio/music02.m4a', mimeType="audio/aac")] private static const __ExampleMp4File:Class; public var myMp4Sound:Sound = new __ExampleMp4File(); public function EmbeddedAudioTest() { myMp4Sound.play(); }

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• C++ floating point precision

  - by Davinel

  double a = 0.3; std::cout.precision(20); std::cout << a << std::endl; result: 0.2999999999999999889 double a, b; a = 0.3; b = 0; for (char i = 1; i <= 50; i++) { b = b + a; }; std::cout.precision(20); std::cout << b << std::endl; result: 15.000000000000014211 So.. 'a' is smaller than it should be. But if we take 'a' 50 times - result will be bigger than it should be. Why is this? And how to get correct result in this case?

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• Returning a tuple of multipe objects in Python C API

  - by celil

  I am writing a native function that will return multiple Python objects PyObject *V = PyList_New(0); PyObject *E = PyList_New(0); PyObject *F = PyList_New(0); return Py_BuildValue("ooo", V, E, F); This compiles fine, however, when I call it from a Python program, I get an error: SystemError: bad format char passed to Py_BuildValue How can this be done correctly? EDIT: The following works PyObject *rslt = PyTuple_New(3); PyTuple_SetItem(rslt, 0, V); PyTuple_SetItem(rslt, 1, E); PyTuple_SetItem(rslt, 2, F); return rslt; However, isn't there a shorter way to do this?

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• iPhone Foundation - performance implications of mutable and xxxWithCapacity:0

  - by Adam Eberbach

  All of the collection classes have two versions - mutable and immutable, such as NSArray and NSMutableArray. Is the distinction merely to promote careful programming by providing a const collection or is there some performance hit when using a mutable object as opposed to immutable? Similarly each of the collection classes has a method xxxxWithCapacity, like [NSMutableArray arrayWithCapacity:0]. I often use zero as the argument because it seems a better choice than guessing wrongly how many objects might be added. Is there some performance advantage to creating a collection with capacity for enough objects in advance? If not why isn't the function something like + (id)emptyArray?

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• vss intializefor backup fails with return code E_UNEXPECTED

  - by suresh

  #include "vss.h" #include "vswriter.h" #include <VsBackup.h> #include <stdio.h> #define CHECK_PRINT(result) printf("%s\n",result==S_OK?"S_OK":"error") int main(int argc, char* argv[]) { BSTR xml; LPTSTR errorText; IVssBackupComponents *VssHandle; HRESULT result = CreateVssBackupComponents(&VssHandle); CHECK_PRINT(result); result = VssHandle->InitializeForBackup(); printf("unexpected%x\n",result); system("pause"); return 0; } in the above program intializeforbackup fails with error code E_UNEXPECTED. The VSS service is running . In the event log it shows as "Volume Shadow Copy Service error: Unexpected error calling routine CoCreateInstance. hr = 0x800401f0.".. Any solutions for the InitializeForBackup to return S_OK?

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• jQueryUI Ajax.NET Postback Bug

  - by nigative

  Hi, I have this ASP.NET page with ASP.NET UpdatePanel and jQueryUI droppable and sortable components. The page works fine in all browsers, but doesn't in Internet Explorer (IE8 tested). After I try to call ASP.NET AJAX event (by pressing my asp.net button inside the UpdatePanel) my sortable list stops working properly inside IE browser and the browser throws the following error: Message: Unspecified error. Line: 145 Char: 186 Code: 0 URI: http://code.jquery.com/jquery-1.4.2.min.js I found out that the problem is caused by the code on line 66: $("#droppable").droppable(); If I comment it out, the sortable list works fine after ajax postbacks. But it doesn't make sense. Does anyone know what could be wrong? Thanks. P.S. I am using jQueryUI 1.8.1 and jQuery 1.4.2

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• How large should my recv buffer be when calling recv in the socket library

  - by Silmaril89

  Hi, I have a few questions about the socket library in C. Here is a snippet of code I'll refer to in my questions. char recv_buffer[3000]; recv(socket, recv_buffer, 3000, 0); First, How do I decide how big to make recv_buffer? I'm using 3000, but it's arbitrary. Second, what happens if recv() receives a packet bigger than my recv_buffer? Third, how can I know if I have received the entire message without calling recv again and have it wait forever when there is nothing to be received? And finally, is there a way I can make a buffer not have a fixed amount of space, so that I can keep adding to it without fear of running out of space? maybe using strcat to concatenate the latest recv() response to the buffer? I know it's a lot of questions in one, but I would greatly appreciate any responses.

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• How to use boost::crc?

  - by Andreas Bonini

  I want to use boost::crc so that it works exactly like PHP's crc32() function. I tried reading the horrible documentation and many headaches later I haven't made any progress. Apparently I have to do something like: int GetCrc32(const string& my_string) { return crc_32 = boost::crc<bits, TruncPoly, InitRem, FinalXor, ReflectIn, ReflectRem>(my_string.c_str(), my_string.length()); } bits should be 32.. What the other things are is a mystery. A little help? ;)

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• Are there gotchas using varargs with reference parameters

  - by Roddy

  I have this piece of code (summarized)... AnsiString working(AnsiString format,...) { va_list argptr; AnsiString buff; va_start(argptr, format); buff.vprintf(format.c_str(), argptr); va_end(argptr); return buff; } And, on the basis that pass by reference is preferred where possible, I changed it thusly. AnsiString broken(const AnsiString &format,...) { ... the rest, totally identical ... } My calling code is like this:- AnsiString s1, s2; s1 = working("Hello %s", "World"); s2 = broken("Hello %s", "World"); But, s1 contains "Hello World", while s2 has "Hello (null)". I think this is due to the way va_start works, but I'm not exactly sure what's going on.

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• Will dbCommand.Close() close the connection as well?

  - by J.W.

  I have the following ado.net code, if I already use using to wrap my DBCommand, do I have to close the underneath connection explicitly? Thanks, public static void ExecuteSQL(int Id) { Database db; const string sqlCommand = "Stored Procedure Name"; try { db = DatabaseFactory.CreateDatabase(); using (DbCommand dbCommand = db.GetStoredProcCommand(sqlCommand)) { db.AddInParameter(dbCommand, "p_Id", DbType.Int32, Id); db.ExecuteNonQuery(dbCommand); **//do I have to close connection explicitely here??** if (dbCommand.Connection.State != ConnectionState.Closed) { dbCommand.Connection.Close(); } dbCommand.Connection.Dispose(); } } catch (Exception ex) { Logger.Log.Error(ex.StackTrace, ex); throw; } }

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• Having a little trouble with this Java code. Beginner probably mixing some things with C#.

  - by Sergio Tapia

  package practico1; /** * Programador: Sergio Tapia Gutierrez * Fecha: Lunes 10, Mayo - 2010 * Practico: 1 */ public class Main { public static void main(String[] args) { System.out.println("Esta es una pequena aplicacion para mostrar los"); System.out.println("distintos tipos de datos que existen en Java 6."); //boolean, char, byte, short, int, long, float, double, String ejemplosBoolean(); } public void ejemplosBoolean(){ } } So, I'm just testing some things out, but I'm getting an error claiming that I'm trying to run ejemplosBoolean() in a static context when it isn't a static method. My question is, in Java do methods have to have static in order to use them even if they are in the same class?

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• Use Google Test from Qt in Windows

  - by Dave

  I have a simple test file, TestMe.cpp: #include <gtest/gtest.h> TEST(MyTest, SomeTest) { EXPECT_EQ(1, 1); } int main(int argc, char **argv) { ::testing::InitGoogleTest(&argc, argv); return RUN_ALL_TESTS(); } I have Google Test built as a static library. (I can provide the makefile if it's relevant.) I can compile TestMe.cpp from a command-line with no problem: g++ TestMe.cpp -IC:\gtest-1.5.0\gtest-1.5.0\include -L../gtest/staticlib -lgtest -o TestMe.exe It runs as expected. However, I cannot get this to compile in Qt. My Qt project file, in the same directory: SOURCES += TestMe.cpp INCLUDEPATH += C:\gtest-1.5.0\gtest-1.5.0\include LIBS += -L../gtest/staticlib -lgtest This results in 17 "unresolved external symbol" errors related to gtest functions. I'm pulling my hair out here, as I'm sure it's something simple. Any ideas?

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• How can I make the Telerik progress bar work?

  - by Darien Fawkes

  I have a Telerik progress bar in my project: <telerik:RadProgressManager ID="RadProgressManager" Runat="server" /> <telerik:RadProgressArea ID="RadProgressArea" Runat="server"></telerik:RadProgressArea> <asp:button id="Button1" runat="server" text="Submit" /> On button click I try to run this method: private void MethodWhichUpdatesTheProgressContext(UploadedFile file, int countFile) { const int total = 100; RadProgressContext ProgressContex = RadProgressContext.Current; ProgressContex.SecondaryTotal = "100"; for (int i = 0; i < total; i++) { ProgressContex.CurrentOperationText = "Uploading zip file percentage " + i.ToString(); if (!Response.IsClientConnected) { break; } System.Threading.Thread.Sleep(100); } } Project builds without any errors but progress doesn't change. How do I properly fire the progress bar animation? If I put this progress bar on control, it can effect this?

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• sprintf an LPCWSTR variable

  - by Julio

  Hello everyone. I'm trying to debug print an LPCWSTR string, but I get a problem during the sprintf push in the buffer, because it retrieve only the first character from the string. Here is the code: HANDLE WINAPI hookedCreateFileW(LPCWSTR lpFileName, DWORD dwDesiredAccess, DWORD dwShareMode, LPSECURITY_ATTRIBUTES lpSecurityAttributes, DWORD dwCreationDisposition, DWORD dwFlagsAndAttributes, HANDLE hTemplateFile) { char buffer[1024]; sprintf_s(buffer, 1024, "CreateFileW: %s", lpFileName); OutputDebugString(buffer); return trueCreateFileW(lpFileName, dwDesiredAccess, dwShareMode, lpSecurityAttributes, dwFlagsAndAttributes, dwCreationDisposition, hTemplateFile); } For example I get "CreateFileW: C" or "CreateFileW: \". How do I properly push it in the buffer? Thank you.

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• How to set permissions on MSMQ Cluster queues?

  - by JorgeSandoval

  I've got a cluster with functioning private MSMQ 3.0 queues. I'm trying to programmatically set the permissions, but can't seem to connect via System.Messaging on the queues. The code below works just fine when working with local queues (and using .\ nomenclature for the local queue). How to programmatically set the permissions on the clustered queues? Powershell code executed from the active node function set-msmqpermission ([string] $queuepath,[string] $account, [string] $accessright) { if (!([System.Messaging.MessageQueue]::Exists($queuepath))){ throw "$queuepath could not be found." } $q=New-Object System.Messaging.MessageQueue($queuepath) $q.SetPermissions($account,[System.Messaging.MessageQueueAccessRights]::$accessright, [System.Messaging.AccessControlEntryType]::Set) } set-msmqpermission "clusternetworkname\private$\qa1ack" "UserAccount" "FullControl" Exception calling "SetPermissions" with "3" argument(s): "Invalid queue path name." At line:30 char:19 + $q.SetPermissions <<<< ($account,[System.Messaging.MessageQueueAccessRights]::$accessright, + CategoryInfo : NotSpecified: (:) [], MethodInvocationException + FullyQualifiedErrorId : DotNetMethodException

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