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  • Simple regular expression for decimal numbers?

    - by finch
    I know this may be the simplest question ever asked on Stack Overflow, but what is the regular expression for a decimal with a precision of 2? Valid examples: 123.12 2 56754 92929292929292.12 0.21 3.1 Invalid examples: 12.1232 2.23332 e666.76 Sorry for the lame question, but for the life of me I haven't been able to find anyone that can help! The decimal place may be option, and that integers may also be included.

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  • Mail Composer Address Problem

    - by Arun Sharma
    I found email composer sample code from iphone OS Ref Library. Here is a code- Code: NSArray *toRecipients = [NSArray arrayWithObject:@"[email protected]"]; NSArray *ccRecipients = [NSArray arrayWithObjects:@"[email protected]", @"[email protected]", nil]; NSArray *bccRecipients = [NSArray arrayWithObject:@"[email protected]"]; My question is how to take user's input? Here all email address are predefined in code. so what are the IDs of to, CC, Bcc, subject and body fields?

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  • Matplotlib not showing up in Mac OSX

    - by Werner
    Hi, I am running Mac OSX 10.5.8. I installed matplotlib using macports. I get some examples from the matplotlib gallery like this one, without modification: http://matplotlib.sourceforge.net/examples/api/unicode_minus.html I run it, get no error, but the picture does not show up. In Linux Ubuntu I get it. Do you know what could be wrong here? Thanks

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  • how to return 2 values from a java function?

    - by javaLearner.java
    Here is my code: // Function code public static int something(){ int number1 = 1; int number2 = 2; return number1, number2; } // Main class code public static void main(String[] args) { something(); System.out.println(number1 + number2); } Error: Exception in thread "main" java.lang.RuntimeException: Uncompilable source code - missing return statement at assignment.Main.something(Main.java:86) at assignment.Main.main(Main.java:53) Java Result: 1

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  • Are there any tools to speed up Cocoa development?

    - by user262325
    I noticed that there is much repeated work to do when creating Cocoa source code. For example, if I set an instance for an object: NSMutableArray *infoArray; I need add code: @property (retain,nonatomic) NSMutableArray *infoArray; @synthesize infoArray; in - (void)dealloc { I also need add: [infoArray release]; Is there any tool that can automate this, perhaps by automatically paste or copy the source code and add the repeated code at right place?

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  • check if a line is valid or not in Java

    - by Adnan
    I would like to perform checking on the following: VALID LINES; /**/ some code */ some code /** dsfsdkf sd**/ NOT VALID LINES; /**/ //some code */ /***/ //somecode So basically if there is a line of code outside a comment it is valid, otherwise not. What would be the best way to tackle this kind of validation? Note: For */ I assume that the /* has been opened some lines before.

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  • Where are the clever uses of strict evaluation?

    - by devonrt
    It seems like there are plenty of examples of clever things being done in a lazily-evaluated language that can't be done in an environment with strict evaluation. For example infinite lists in Haskell or replacing every element in a tree with the tree's minimum value in one pass. Are there any examples of clever things being done in a strictly-evaluated language that can't easily be done in a lazily-evaluated language?

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  • php OOP, full sample

    - by lolalola
    Hi, On this site I found a lot of cool examples of PHP OOP. Maybe you know where to find complete examples? Guest books, registration forms, blog... When I look at the full model is much easier to understand OOP PHP. As different classes interacting with each other, exchange data How to use the generic class for sending data to the database Thanks

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  • Real life example fo Floating Point error

    - by Rob
    Is there any examples of a company that was burned by floating point data that caused a rounding issue? We're implementing a new system and all the monetary values are stored in floats. I think if i can show actual examples of why this has failed it'll have more weight than the theory of why the values can't be stored properly.

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  • A script that writes errors and should create a event-error

    - by helmich
    this if it works should check the internet connection if there is a connection it does nothing. if there isn't a connection it should write a error in a txtfile if that happend 5 times it should create a error but it doesn't I will show you the whole code that i have now and the piece of code that i want in a loop. I can't get it in the way i want. I want it to creat 1 Event-error after 5 times writing to the file. this is the whole code i will put the code i want in a loop under it strDirectory = "Z:\text2" strFile = "\foutmelding.txt" strText = "De connectie is verbroken" strWebsite = "www.helmichbeens.com" If PingSite(strWebsite) Then WScript.Quit 'Website is pingable - no further action required Set objFSO = CreateObject("Scripting.FileSystemObject") RecordSingleEvent Dim fout For fout = 1 To 5 : Do If fout = 5 Then Exit Do Set WshShell = WScript.CreateObject("WScript.Shell") Call WshShell.LogEvent(1, "Test Event") Loop While False : next '------------------------------------ 'Record a single event in a text file '------------------------------------ Sub RecordSingleEvent If Not objFSO.FolderExists(strDirectory) Then objFSO.CreateFolder(strDirectory) Set objTextFile = objFSO.OpenTextFile(strDirectory & strFile, 8, True) objTextFile.WriteLine(Now & strText) objTextFile.Close End sub '---------------- 'Ping my web site '---------------- Function PingSite( myWebsite ) Set objHTTP = CreateObject( "WinHttp.WinHttpRequest.5.1" ) objHTTP.Open "GET", "http://" & myWebsite & "/", False objHTTP.SetRequestHeader "User-Agent", "Mozilla/4.0 (compatible; MyApp 1.0; Windows NT 5.1)" On Error Resume Next objHTTP.Send PingSite = (objHTTP.Status = 200) On Error Goto 0 End Function '----------------------------------------------- 'Counts the number of lines inside the text file '----------------------------------------------- Function EventCount(fout) strData = objFSO.OpenTextFile(strDirectory & strFile,ForReading).ReadAll arrLines = Split(strData,vbCrLf) EventCount = UBound(arrLines) End Function This is the whole code, and it doesnt work correctly becaus it creats a event-log rightaway and it should do that after the script has written 5 times to the textfile here is the code that writes to a textfile Sub RecordSingleEvent If Not objFSO.FolderExists(strDirectory) Then objFSO.CreateFolder(strDirectory) Set objTextFile = objFSO.OpenTextFile(strDirectory & strFile, 8, True) objTextFile.WriteLine(Now & strText) objTextFile.Close End sub and here is the code but this part doesnt not work or atleast i think it is this part Dim fout For fout = 1 To 5 : Do If fout = 5 Then Exit Do Set WshShell = WScript.CreateObject("WScript.Shell") Call WshShell.LogEvent(1, "Test Event") Loop While False : next Function EventCount(fout) strData = objFSO.OpenTextFile(strDirectory & strFile,ForReading).ReadAll arrLines = Split(strData,vbCrLf) EventCount = UBound(arrLines) End Function this is the not working part and I don't know what to do anymore so can you please take a look at it tank you very much. btw: this code can be very usefull for a network administrator

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  • Interrupt ?13 (ah=48) - don't working

    - by GLeBaTi
    mov dl,00h mov ah,08h int 13h this is code showing normal parameters of floppy disk. mov dl,80h mov ah,08h int 13h this is code, showing not valid parameters of hard disk(may be, my hard disk space is big (LBA)), And I've written this code: mov dl,80h mov ah,48h int 13h it is code doing cf = 1(error). How fix it? I want learn parameters of my hard disk. (http://lrs.uni-passau.de/support/doc/interrupt-57/RB-0677.HTM)

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  • Can you help with regular expressions in Java?

    - by Matt
    I have a bunch of strings which may of may not have random symbols and numbers in them. Some examples are: contains(reserved[j])){ close(); i++){ letters[20]=word I want to find any character that is NOT a letter, and replace it with a white space, so the above examples look like: contains reserved j close i letters word What is the best way to do this?

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  • Best way to have common class shared by both C++ and Ruby?

    - by shuttle87
    I am currently working on a project where a team of us are designing a game, all of us are proficient in ruby and some (but not all) of us are proficient in c++. Initially we made the backend in ruby but we ported it to c++ for more speed. The c++ port of the backend has exactly the same features and algorithms as the original ruby code. However we still have a bunch of code in ruby that does useful things but we want it to now get the data from the c++ classes. Our first thought was that we could save some of the data structures in something like XML or redis and call that, but some of the developers don't like that idea. We don't need anything particularly complex data structures to be passed between the different parts of the code, just tuples, strings and ints. Is there any way of integrating the ruby code so that it can call the c++ stuff natively? Will we need to embed code? Will we have to make a ruby extension? If so are there any good resources/tutorials you could suggest? For example say we have this code in the c++ backend: class The_game{ private: bool printinfo; //print the player diagnostic info at the beginning if true int numplayers; std::vector<Player*> players; string current_action; int action_is_on; // the index of the player in the players array that the action is now on //more code here public: Table(std::vector<Player *> in_players, std::vector<Statistics *> player_stats ,const int in_numplayers); ~Table(); void play_game(); History actions_history; }; class History{ private: int action_sequence_number; std::vector<Action*> hand_actions; public: void print_history(); void add_action(Action* the_action_to_be_added); int get_action_sequence_number(){ return action_sequence_number;} bool history_actions_are_equal(); int last_action_size(int street,int number_of_actions_ago); History(); ~History(); }; Is there any way to natively call something in the actions_history via The_game object in ruby? (The objects in the original ruby code all had the same names and functionality) By this I mean: class MyRubyClass def method1(arg1) puts arg1 self.f() # ... but still available puts cpp_method.the_current_game.actions_history.get_action_sequence_number() end # Constructor: def initialize(arg) puts "In constructor with arg #{arg}" #get the c++ object here and call it cpp_method end end Is this possible? Any advice or suggestions are appreciated.

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  • how to store assembly in memory

    - by da cheng
    Hi, I have a question about how to store the assembly language in memory,when I compile the C-code in assembly, and run by "step", I can see the address of each instruction, but is there a way to change the start address of the code in the memory? Second question is, can I break the assembly code into two? I am curious about how the machine store the assembly code. BTW, I am working on a MACBOOK Pro, duo core. Thank you. -da

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  • JQuery: How do I perform a callback on JQuery once it's loaded?

    - by Teddyk
    I'm downloading JQuery asynchronously: function addScript(url) { var script = document.createElement('script'); script.src = url; document.getElementsByTagName('head')[0].appendChild(script); } addScript('jquery.js'); // non-jquery code ... // jquery specific code like: $()... As such - how do I call my JQuery specific code once JQuery is loaded (because since I'm downloading my JavaScript asynch - it's not blocking, which is good, but is trying to execute my JQuery specific code before JQuery has been loaded).

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  • how to find hidden information

    - by user356029
    hye im newbie here.. im looking for a hidden information in a source code..in the page, the information is visible but when i try to find it in the source code, the information is not there..but behind the code it has [script type = "text/javascript].. i believe the information i need is in between the javascript..my question is, how to get the information between the javascript?..it has the innerHtml code between the javascript..any one can help?

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  • Why does 'url' not work as a variable here?

    - by kryptobs2000
    I originally had the variable cpanel named url and the code would not return anything. Any idea why? It doesn't seem to be used by anything else, but there's gotta be something I'm overlooking. import urllib2 cpanel = 'http://www.tas-tech.com/cpanel' req = urllib2.Request(cpanel) try: handle = urllib2.urlopen(req) except IOError, e: if hasattr(e, 'code'): if e.code != 401: print 'We got another error' print e.code else: print e.headers print e.headers['www-authenticate']

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  • Why isn't this infinite recursion? How does default variable initialization work in VB.NET?

    - by froadie
    I just made an interesting mistake in my code: Dim endColumn As Integer = startColumn + endColumn - 1 The code was actually supposed to be: Dim endColumn As Integer = startColumn + numColumns - 1 The interesting thing is, I would think that this code should be recursive and loop indefinitely, as the initialization of endColumn sort of calls itself. However, it seems that the code just treats the uninitialized variable as a 0 and so I get startColumn + 0 - 1. What is happening here behind the scenes? When does a variable get assigned a default value?

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  • C# windows forms not updating in method

    - by Oscar
    Hi! Im trying to call some windows forms code (like setting label.visible = true in some event code, everything compiles ok, but form does not react to change! What could be the problem? Problem is in lines: labelNewCall.Visible = true; timerNewCall.Enabled = true; code : http://pastebin.com/gV28PN4P also other code did not work, until i reordered some of if (order is not important but it did not work otherwise... )

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  • Overriding 'require' in Clojure?

    - by StackedCrooked
    Would it be possible to override the 'require' command so that it will try to download a certain resource if it was not found on the local machine. For example: (require 'examples.introduction) ; if not found => download from the net ; (url: http://media.pragprog.com/titles/shcloj/code/examples/introduction.clj)

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  • Accessing a database using visual c++ and OLEDB

    - by Shadi
    Does anybody have an example of working with database using Visual C++ and OLEDB? What should I include on top of my code? I have searched the internet and most examples are using C# or VB. Examples written by C++ are usually not complete. I really appreciate your help. Best, Shadi.

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  • Union results of two functions in php class

    - by Max
    I have php class(simple example): <?php class test{ public function __construct() { //some code } public function __destruct() { //some code } public function echo1 { //some code return 1; } public function echo2 { //some code return 2; } } How could I return results of this two functions echo1 and echo2 in class in one row don't creating two new objects for each function?

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  • Eclipse/CDT editor not picking up project-defined symbols in coloring ifdef'ed out sections

    - by Guy
    The problem I'm seeing is that under preferences, C/C++ Defined symbols for different Configurations/targets aren't showing up in the code coloring. When I change the active build configuration in the project menu, I would expect the editor & code coloring to pick up the symbols from the project settings, but it only seems to be picking up the symbols for one of the targets. Is there any way to have the code coloring for ifdef'ed code follow the active build configuration?

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