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  • When to use \A in regex?

    - by S.Mark
    End of line anchor $ match even there is extra trailing \n in matched string, so we use \Z instead of $ For example ^\w+$ will match the string abcd\n but ^\w+\Z is not How about \A and when to use?

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  • vs2010 wpf c#: how to get friends list from facebook? (Desktop application)

    - by Ash
    As per this link code from stack overflow i have try this code for getting friendslist but after login i got this error "requires valid signature" string APIKey = ConfigurationManager.AppSettings["API_Key"]; string APISecret = ConfigurationManager.AppSettings["API_Secret"]; Facebook.Session.ConnectSession connectsession = new Facebook.Session.ConnectSession(APIKey, APISecret); Facebook.Rest.Api api = new Facebook.Rest.Api(connectsession); var friends = api.Friends.GetLists(); foreach (var friend in friends) { System.Console.WriteLine(friend.name); } guide me to find out the solution Thanks ash

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  • What is the best way to declare sorted association in grails domain classes ?

    - by fabien7474
    It seems that there are two different ways of declaring sorted associations in Grails : Method 1 (see here) using default sort order class Book { String title } class Author { static hasMany = [books : Book] static mapping = { books sort: "title"} } Method 2 (see here) using SortedSet class Book implements Comparable { String title int compareTo(obj) { title <=> obj.title } } class Author { SortedSet books static hasMany = [books : Book] } I am not sure which one to use and what is the difference (if any), pros and cons between using one against the other. I would appreciate any clarification. Thank you

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  • [C#] Problems with implementing generic IEnumerator and IComparable

    - by r0h
    Hi all! I'm working on an AVL Tree. The tree itself seems to be working but I need a iterator to walk through the values of the tree. Therefore I tried to implement the IEnumerator interace. Unfortunately I get a compile time error implementing IEnumerator and IComparable. First the code and below that the error. class AvlTreePreOrderEnumerator<T> : IEnumerator<T> where T :IComparable<T> { private AvlTreeNode<T> current = default(T); private AvlTreeNode<T> tree = null; private Queue<AvlTreeNode<T>> traverseQueue = null; public AvlTreePreOrderEnumerator(AvlTreeNode<T> tree) { this.tree = tree; //Build queue traverseQueue = new Queue<AvlTreeNode<T>>(); visitNode(this.tree.Root); } private void visitNode(AvlTreeNode<T> node) { if (node == null) return; else { traverseQueue.Enqueue(node); visitNode(node.LeftChild); visitNode(node.RightChild); } } public T Current { get { return current.Value; } } object IEnumerator.Current { get { return Current; } } public void Dispose() { current = null; tree = null; } public void Reset() { current = null; } public bool MoveNext() { if (traverseQueue.Count > 0) current = traverseQueue.Dequeue(); else current = null; return (current != null); } } The error given by VS2008: Error 1 The type 'T' cannot be used as type parameter 'T' in the generic type or method 'Opdr2_AvlTreeTest_Final.AvlTreeNode'. There is no boxing conversion or type parameter conversion from 'T' to 'System.IComparable'. For now I've not included the tree and node logic. I anybody thinks is necessary to resolve this probleem, just say so! Thx!

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  • Exception showing a erroneous web page in a WPF frame

    - by H4mm3rHead
    I have a small application where i need to navigate to an url, I use this method to get the Frame: public override System.Windows.UIElement GetPage(System.Windows.UIElement container) { XmlDocument doc = new XmlDocument(); doc.Load(Location); string webSiteUrl = doc.SelectSingleNode("website").InnerText; Frame newFrame = new Frame(); if (!webSiteUrl.StartsWith("http://")) { webSiteUrl = "http://" + webSiteUrl; } newFrame.Source = new Uri(webSiteUrl); return newFrame; } My problem is now that the page im trying to show generates a error (or so i think), when i load the page in a browser it never fully loads, keeps saying "loading1 element" in the load bar and the green progress line (IE 8) keeps showing. When i attach my debugger i get this error: System.ArgumentException was unhandled Message="Parameter and value pair is not valid. Expected form is parameter=value." Source="WindowsBase" StackTrace: at MS.Internal.ContentType.ParseParameterAndValue(String parameterAndValue) at MS.Internal.ContentType..ctor(String contentType) at MS.Internal.WpfWebRequestHelper.GetContentType(WebResponse response) at System.Windows.Navigation.NavigationService.GetObjectFromResponse(WebRequest request, WebResponse response, Uri destinationUri, Object navState) at System.Windows.Navigation.NavigationService.HandleWebResponse(IAsyncResult ar) at System.Windows.Navigation.NavigationService.<>c__DisplayClassc.<HandleWebResponseOnRightDispatcher>b__8(Object unused) at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Boolean isSingleParameter) at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Boolean isSingleParameter, Delegate catchHandler) at System.Windows.Threading.DispatcherOperation.InvokeImpl() at System.Threading.ExecutionContext.runTryCode(Object userData) at System.Runtime.CompilerServices.RuntimeHelpers.ExecuteCodeWithGuaranteedCleanup(TryCode code, CleanupCode backoutCode, Object userData) at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state) at System.Windows.Threading.DispatcherOperation.Invoke() at System.Windows.Threading.Dispatcher.ProcessQueue() at System.Windows.Threading.Dispatcher.WndProcHook(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled) at MS.Win32.HwndWrapper.WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled) at MS.Win32.HwndSubclass.DispatcherCallbackOperation(Object o) at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Boolean isSingleParameter) at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Boolean isSingleParameter, Delegate catchHandler) ved System.Windows.Threading.Dispatcher.InvokeImpl(DispatcherPriority priority, TimeSpan timeout, Delegate method, Object args, Boolean isSingleParameter) at MS.Win32.HwndSubclass.SubclassWndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam) at MS.Win32.UnsafeNativeMethods.DispatchMessage(MSG& msg) at System.Windows.Threading.Dispatcher.TranslateAndDispatchMessage(MSG& msg) at System.Windows.Threading.Dispatcher.PushFrameImpl(DispatcherFrame frame) at System.Windows.Application.RunInternal(Window window) at GreenWebPlayerWPF.App.Main() i C:\Development\Hvarregaard\GWDS\GreenWeb\GreenWebPlayerWPF\obj\Debug\App.g.cs:linje 0 at System.AppDomain._nExecuteAssembly(Assembly assembly, String[] args) at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly() at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state) at System.Threading.ThreadHelper.ThreadStart() InnerException: Anyone? Or any way to capture it and respond to it, tried a try/catch around my code, but its not caught - seems something deep inside the guts of the CLR is failing.

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  • OpenGL Shader Compile Error

    - by Tomas Cokis
    I'm having a bit of a problem with my code for compiling shaders, namely they both register as failed compiles and no log is received. This is the shader compiling code: /* Make the shader */ Uint size; GLchar* file; loadFileRaw(filePath, file, &size); const char * pFile = file; const GLint pSize = size; newCashe.shader = glCreateShader(shaderType); glShaderSource(newCashe.shader, 1, &pFile, &pSize); glCompileShader(newCashe.shader); GLint shaderCompiled; glGetShaderiv(newCashe.shader, GL_COMPILE_STATUS, &shaderCompiled); if(shaderCompiled == GL_FALSE) { ReportFiler->makeReport("ShaderCasher.cpp", "loadShader()", "Shader did not compile", "The shader " + filePath + " failed to compile, reporting the error - " + OpenGLServices::getShaderLog(newCashe.shader)); } And these are the support functions: bool loadFileRaw(string fileName, char* data, Uint* size) { if (fileName != "") { FILE *file = fopen(fileName.c_str(), "rt"); if (file != NULL) { fseek(file, 0, SEEK_END); *size = ftell(file); rewind(file); if (*size > 0) { data = (char*)malloc(sizeof(char) * (*size + 1)); *size = fread(data, sizeof(char), *size, file); data[*size] = '\0'; } fclose(file); } } return data; } string OpenGLServices::getShaderLog(GLuint obj) { int infologLength = 0; int charsWritten = 0; char *infoLog; glGetShaderiv(obj, GL_INFO_LOG_LENGTH,&infologLength); if (infologLength > 0) { infoLog = (char *)malloc(infologLength); glGetShaderInfoLog(obj, infologLength, &charsWritten, infoLog); string log = infoLog; free(infoLog); return log; } return "<Blank Log>"; } and the shaders I'm loading: void main(void) { gl_FragColor = vec4(1.0, 0.0, 0.0, 1.0); } void main(void) { gl_Position = ftransform(); } In short I get From: ShaderCasher.cpp, In: loadShader(), Subject: Shader did not compile Message: The shader Data/Shaders/Standard/standard.vs failed to compile, reporting the error - <Blank Log> for every shader I compile I've tried replacing the file reading with just a hard coded string but I get the same error so there must be something wrong with how I'm compiling them. I have run and compiled example programs with shaders, so I doubt my drivers are the issue, but in any case I'm on a Nvidia 8600m GT. Can anyone help?

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  • How to generate all strings with d-mismatches, python

    - by mr.M
    I have a following string - "AACCGGTTT" (alphabet is ["A","G","C","T"]). I would like to generate all strings that differ from the original in any two positions i.e. GAGCGGTTT ^ ^ TATCGGTTT ^ ^ How can I do it in Python? I have only brute force solution (it is working): generate all strings on a given alphabet with the same length append strings that have 2 mismatches with a given string However, could you suggest more efficient way to do so?

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  • [r] Converting unix seconds in milliseconds to POSIXct/POSIXlt

    - by signalseeker
    Why do I see a difference when I convert a unix timestamp to datetime object in R? > as.POSIXlt(1268736919, origin="1970-01-01", tz="America/New_York") [1] "2010-03-16 06:55:19 EDT" > as.POSIXct(1268736919, origin="1970-01-01", tz="America/New_York") [1] "2010-03-16 11:55:19 EDT" The result from POSIXlt is actually correct. Also, is there a way to do this conversion without specifying the origin? Thanks

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  • How to use jQuery to make a call to c# webservice to get return value

    - by aspdotnetuser
    I want to use jQuery to make a call to a c# web service called c.ashx which checks whether that username is valid and returns an error message as a string. What should I put for data: and content type: if the return value of the c# webservice is a string value? jQuery.ajax({ type: "GET", url: "/services/CheckUserName.ashx", data: "", contenttype: "", success: function (msg) { alert("success"); }, error: function (msg, text) { alert(text); } });

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  • image not shown in dvi after latexing

    - by Tim
    Hi, I include several images of eps format in latex. After latex command, there are some of the images missing in the dvi file. Not sure if it is related to the image size, most of the images missing have size around 83kB while those shown up have a size less than 40kB. After conversion from dvi to ps, the images are all back. Just wonder what is the reason causing the images missing in dvi file? Thanks and regards!

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  • How to generate android styled javadocs ?

    - by Kaillash
    Hi, Is it possible to generate android styled javadocs for my android project (like http://developer.android.com/reference/java/lang/String.html, instead of http://java.sun.com/j2se/1.5.0/docs/api/java/lang/String.html) Is it something regarding using of some custom doclet instead of standard doclet? If yes, then which one I have to use?

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  • asp.net c# ip address lost after postback?

    - by Mark
    Hi all, One of my functions in a class is called GetIpAddress() which returns the following string: System.Web.HttpContext.Current.Request.ServerVariables["REMOTE_ADDR"] This all works well in regular page loads and gets my ip address, but when i for example let a user place a comment, then the ip address is lost after postback and i get an empty string returned. Am I missing something here maybe? Kind regards, Mark

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  • How to obtain The Oracle Package name from a Crystal Report file using .NET code

    - by eschneider
    I'm trying to obtain the Oracle package name used for a Crystal report data source using .NET code. I have obtained the procedure name, but for some reason I can not find the package name. Dim rpt as new ReportDocument rpt.Load(filename) Dim procedureName As String = rpt.Database.Tables.Item(0).Location Dim DataSourceAliasName As String = rpt.Database.Tables.Item(0).Name Currently using .NET Crystal Decisions version: 10.5.3700.0

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  • How i change the Enabled= attribute via a preloaded field

    - by user1904656
    I want to modify the PXUIField Enabled=false/true using an existing boolean field #region LastBatNbr public abstract class lastBatNbr : PX.Data.IBqlField { } protected String _LastBatNbr; [PXDBString(10, IsFixed = true)] [PXUIField(DisplayName = "Last Batch Nbr")] public virtual String LastBatNbr { get { return this._LastBatNbr; } set { this._LastBatNbr = value; } } #endregion

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  • Stepping into Ruby Meta-Programming: Generating proxy methods for multiple internal methods

    - by mstksg
    Hi all; I've multiply heard Ruby touted for its super spectacular meta-programming capabilities, and I was wondering if anyone could help me get started with this problem. I have a class that works as an "archive" of sorts, with internal methods that process and output data based on an input. However, the items in the archive in the class itself are represented and processed with integers, for performance purposes. The actual items outside of the archive are known by their string representation, which is simply number_representation.to_s(36). Because of this, I have hooked up each internal method with a "proxy method" that converts the input into the integer form that the archive recognizes, runs the internal method, and converts the output (either a single other item, or a collection of them) back into strings. The naming convention is this: internal methods are represented by _method_name; their corresponding proxy method is represented by method_name, with no leading underscore. For example: class Archive ## PROXY METHODS ## ## input: string representation of id's ## output: string representation of id's def do_something_with id result = _do_something_with id.to_i(36) return nil if result == nil return result.to_s(36) end def do_something_with_pair id_1,id_2 result = _do_something_with_pair id_1.to_i(36), id_2.to_i(36) return nil if result == nil return result.to_s(36) end def do_something_with_these ids result = _do_something_with_these ids.map { |n| n.to_i(36) } return nil if result == nil return result.to_s(36) end def get_many_from id result = _get_many_from id return nil if result == nil # no sparse arrays returned return result.map { |n| n.to_s(36) } end ## INTERNAL METHODS ## ## input: integer representation of id's ## output: integer representation of id's def _do_something_with id # does something with one integer-represented id, # returning an id represented as an integer end def do_something_with_pair id_1,id_2 # does something with two integer-represented id's, # returning an id represented as an integer end def _do_something_with_these ids # does something with multiple integer ids, # returning an id represented as an integer end def _get_many_from id # does something with one integer-represented id, # returns a collection of id's represented as integers end end There are a couple of reasons why I can't just convert them if id.class == String at the beginning of the internal methods: These internal methods are somewhat computationally-intensive recursive functions, and I don't want the overhead of checking multiple times at every step There is no way, without adding an extra parameter, to tell whether or not to re-convert at the end I want to think of this as an exercise in understanding ruby meta-programming Does anyone have any ideas? edit The solution I'd like would preferably be able to take an array of method names @@PROXY_METHODS = [:do_something_with, :do_something_with_pair, :do_something_with_these, :get_many_from] iterate through them, and in each iteration, put out the proxy method. I'm not sure what would be done with the arguments, but is there a way to test for arguments of a method? If not, then simple duck typing/analogous concept would do as well.

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  • Poor performance / speed of regex with lookahead

    - by Hugo Zaragoza
    I have been observing extremely slow execution times with expressions with several lookaheads. I suppose that this is due to underlying data structures, but it seems pretty extreme and I wonder if I do something wrong or if there are known work-arounds. The problem is determining if a set of words are present in a string, in any order. For example we want to find out if two terms "term1" AND "term2" are somewhere in a string. I do this with the expresion: (?=.*\bterm1\b)(?=.*\bterm2\b) But what I observe is that this is an order of magnitude slower than checking first just \bterm1\b and just then \bterm2\b This seems to indicate that I should use an array of patterns instead of a single pattern with lookaheads... is this right? it seems wrong... Here is an example test code and resulting times: public static void speedLookAhead() { Matcher m, m1, m2; boolean find; int its = 1000000; // create long non-matching string char[] str = new char[2000]; for (int i = 0; i < str.length; i++) { str[i] = 'x'; } String test = str.toString(); // First method: use one expression with lookaheads m = Pattern.compile("(?=.*\\bterm1\\b)(?=.*\\bterm2\\b)").matcher(test); long time = System.currentTimeMillis(); ; for (int i = 0; i < its; i++) { m.reset(test); find = m.find(); } time = System.currentTimeMillis() - time; System.out.println(time); // Second method: use two expressions and AND the results m1 = Pattern.compile("\\bterm1\\b").matcher(test); m2 = Pattern.compile("\\bterm2\\b").matcher(test); time = System.currentTimeMillis(); ; for (int i = 0; i < its; i++) { m1.reset(test); m2.reset(test); find = m1.find() && m2.find(); } time = System.currentTimeMillis() - time; System.out.println(time); } This outputs in my computer: 1754 150

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  • Serialize problem with cookie

    - by cagin
    Hi there, I want use cookie in my web project. I must serialize my classes. Although my code can seralize an int or string value, it cant seralize my classes. This is my seralize and cookie code : public static bool f_SetCookie(string _sCookieName, object _oCookieValue, DateTime _dtimeExpirationDate) { bool retval = true; try { if (HttpContext.Current.Request[_sCookieName] != null) { HttpContext.Current.Request.Cookies.Remove(_sCookieName); } BinaryFormatter bf = new BinaryFormatter(); MemoryStream ms = new MemoryStream(); bf.Serialize(ms, _oCookieValue); byte[] bArr = ms.ToArray(); MemoryStream objStream = new MemoryStream(); DeflateStream objZS = new DeflateStream(objStream, CompressionMode.Compress); objZS.Write(bArr, 0, bArr.Length); objZS.Flush(); objZS.Close(); byte[] bytes = objStream.ToArray(); string sCookieVal = Convert.ToBase64String(bytes); HttpCookie cook = new HttpCookie(_sCookieName); cook.Value = sCookieVal; cook.Expires = _dtimeExpirationDate; HttpContext.Current.Response.Cookies.Add(cook); } catch { retval = false; } return retval; } And here is one of my classes: [Serializable] public class Tahlil { #region Props & Fields public string M_KlinikKodu{ get; set; } public DateTime M_AlinmaTarihi { get; set; } private List<Test> m_Tesler; public List<Test> M_Tesler { get { return m_Tesler; } set { m_Tesler = value; } } #endregion public Tahlil() {} Tahlil(DataRow _rwTahlil){} } I m calling my Set Cookie method: Tahlil t = new Tahlil(); t.M_AlinmaTarihi = DateTime.Now; t.M_KlinikKodu = "2"; t.M_Tesler = new List<Test>(); f_SetCookie("Tahlil", t, DateTime.Now.AddDays(1)); I cant see cookie in Cookie folder and Temporary Internet Files but if i will call method like that: f_SetCookie("TRY", 5, DateTime.Now.AddDays(1)); I can see cookie. What is the problem? I dont understand. Thank you for your helps.

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  • Set Jtable/Column Renderer for booleans

    - by twodayslate
    Right now my Boolean values for my JTable display as JCheckBoxes. This would normally be fine but I would like to display them as either an alternative String or image. I can get them to display as true/false but I would like to display them as a checkmark (?) if true and nothing if false. Possibly an image but lets do a String first...

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  • How to write a contains statement to match a member of a class?

    - by afuzzyllama
    If I have the following structure: Public Class UserData Public ID As String Public Name As String End Class How can I select it in a conditional like this? Dim myUsers As New List(Of UserData) If myUsers.Contains(.ID = "1") = True Then ... I know that myUsers.Contains(.ID = "1") is totally wrong, but I am curious how to do something like that? Is it possible? Is this a job for LINQ?

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  • How to return a property name when comparing two properties at class-level

    - by CodeMonkey
    Hi I have implemented an 'EqualTo' Validation Attribute, that compares two Properties of an object, during ModelBinding in ASP.NET MVC 2. The problem I have is not with it not working, because it does work. The problem is, when I do my request - which is an ajax request - I get back errors to my front-end, where it sets a class on the input fields to indicate invalid input. What it does is iterate through a list of Errors (in a JsonResult), and set a class. This is all dandy. But the ValidationAtrribute I am having trouble with is set at a Class-level, i.e., it's not like other ValidationAttributes where you set something like "[Required]" or something like that. [AttributeUsage(AttributeTargets.Class, AllowMultiple=true, Inherited=false)] public class EqualToAttribute : ValidationAttribute { public String SourceProperty { get; set; } public String MatchProperty { get; set; } public EqualToAttribute(string source, string match) { SourceProperty = source; MatchProperty = match; } public override Boolean IsValid(Object value) { Type objectType = value.GetType(); PropertyInfo[] properties = objectType.GetProperties(); object sourceValue = new object(); object matchValue = new object(); Type sourceType = null; Type matchType = null; int counter = 0; foreach (PropertyInfo propertyInfo in properties) { if (propertyInfo.Name == SourceProperty || propertyInfo.Name == MatchProperty) { if (counter == 0) { sourceValue = propertyInfo.GetValue(value, null); sourceType = propertyInfo.GetValue(value, null).GetType(); } if (counter == 1) { matchValue = propertyInfo.GetValue(value, null); matchType = propertyInfo.GetValue(value, null).GetType(); } counter++; if (counter == 2) { break; } } } if (sourceType != null && matchType != null) { return sourceValue.ToString().Equals(matchValue.ToString()); //return Convert.ChangeType(sourceValue, sourceType) == Convert.ChangeType(matchValue, matchType); } return false; } private object _typeId = new object(); public override object TypeId { get { return this._typeId; } } } Now this code works, except for the fact that the validation process does not return which Property failed. And I simply can't figure out how to make it return one of the two. In reality I don't care which one it returns.. because both are failing.. Do you have an idea how to make it return the/or both Property/Properties that is/are failing.

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  • How can i interpret a time value in ascii into a numerical value?

    - by Bilal
    I have a file which is as follows: 15:03:21 II 0.88 0.64 15:03:31 II 0.88 0.64 15:03:42 II 0.40 0.40 etc. after loading the file in matlab, I want to be able to read the first column (which corresponds to time) and interpret them as numerical values. At the moment, they are interpreted as a string of ascii characters and i can't perform any mathematical operations on them. Does anyone have any suggestions as to how i can read the time as numbers instead of a string of ascii characters?

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