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  • JSON ParserError

    - by ashok
    Unexpected response from the api: (app/a437x7/generate/ff) :: 665: unexpected token at '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8" /> <title>We're sorry, but something went wrong (500)</title> <style type="text/css"> body { background-color: #fff; color: #666; text-align: center; font-family: arial, sans-serif; } div.dialog { width: 25em; padding: 0 4em; margin: 4em auto 0 auto; border: 1px solid #ccc; border-right-color: #999; border-bottom-color: #999; } h1 { font-size: 100%; color: #f00; line-height: 1.5em; } </style> </head> <body> <!-- This file lives in public/500.html --> <div class="dialog"> <h1>We're sorry, but something went wrong.</h1> <p>We've been notified about this issue and we'll take a look at it shortly.</p> </div> </body> </html> ' (JSON::ParserError)!No access! Please verify your OAuth access token and secret.

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  • How do I resolve no swt-cocoa-3557 or swt-cocoa in swt.library.path, java.library.path or the jar fi

    - by ?????
    I can't get a swt application to work on Mac OSX Snow Leopard. Exception in thread "main" java.lang.UnsatisfiedLinkError: no swt-cocoa-3557 or swt-cocoa in swt.library.path, java.library.path or the jar file at org.eclipse.swt.internal.Library.loadLibrary(Unknown Source) at org.eclipse.swt.internal.Library.loadLibrary(Unknown Source) at org.eclipse.swt.internal.C.<clinit>(Unknown Source) at org.eclipse.swt.internal.cocoa.NSThread.isMainThread(Unknown Source) at org.eclipse.swt.graphics.Device.<init>(Unknown Source) at org.eclipse.swt.widgets.Display.<init>(Unknown Source) at org.eclipse.swt.widgets.Display.<init>(Unknown Source) at com.astrobetty.geotag.Hello.main(Hello.java:12) I have added -Dswt.library.path= and -Djava.library.path statements to the "VM arrguments" hand have also tried setting them as variables in the "environment" section of the Eclipse run configuration page. I've verified that my .jar file is at the path I specify. If I look inside the .jar, it seems to contain these libraries: 102 Feb 12 13:21 META-INF 183 Feb 12 13:21 external.xpt 37104 Nov 17 2009 libswt-awt-cocoa-3557.jnilib 287228 Nov 17 2009 libswt-cocoa-3557.jnilib 548252 Nov 17 2009 libswt-pi-cocoa-3557.jnilib 313420 Nov 17 2009 libswt-xulrunner-cocoa-3557.jnilib 136 May 23 22:19 org 13 Feb 12 13:21 version.txt Any ideas on how to get this to work? Is it possible at all?

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  • django error ,about django-sphinx

    - by zjm1126
    from django.db import models from djangosphinx.models import SphinxSearch class MyModel(models.Model): search = SphinxSearch() # optional: defaults to db_table # If your index name does not match MyModel._meta.db_table # Note: You can only generate automatic configurations from the ./manage.py script # if your index name matches. search = SphinxSearch('index_name') # Or maybe we want to be more.. specific searchdelta = SphinxSearch( index='index_name delta_name', weights={ 'name': 100, 'description': 10, 'tags': 80, }, mode='SPH_MATCH_ALL', rankmode='SPH_RANK_NONE', ) queryset = MyModel.search.query('query') results1 = queryset.order_by('@weight', '@id', 'my_attribute') results2 = queryset.filter(my_attribute=5) results3 = queryset.filter(my_other_attribute=[5, 3,4]) results4 = queryset.exclude(my_attribute=5)[0:10] results5 = queryset.count() # as of 2.0 you can now access an attribute to get the weight and similar arguments for result in results1: print result, result._sphinx # you can also access a similar set of meta data on the queryset itself (once it's been sliced or executed in any way) print results1._sphinx and Traceback (most recent call last): File "D:\zjm_code\sphinx_test\models.py", line 1, in <module> from django.db import models File "D:\Python25\Lib\site-packages\django\db\__init__.py", line 10, in <module> if not settings.DATABASE_ENGINE: File "D:\Python25\Lib\site-packages\django\utils\functional.py", line 269, in __getattr__ self._setup() File "D:\Python25\Lib\site-packages\django\conf\__init__.py", line 38, in _setup raise ImportError("Settings cannot be imported, because environment variable %s is undefined." % ENVIRONMENT_VARIABLE) ImportError: Settings cannot be imported, because environment variable DJANGO_SETTINGS_MODULE is undefined.

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  • Thrift,.NET,Cassandra - Is this is right combination?

    - by Vadi
    I've been evaluating technology stack for developing a social network based application. Below are the stack I think could well suitable for this application type of application: GUI -- ASP.NET MVC, Flash (Flex) Business Services -- Thrift based services One of the advantage of using Thrift is to solve scaling problems that will come in future when the user base increases rapidly. All the business logic can be exposed as a services using REST,JSON etc., This also allows us to go with C++ or Erlang based services when situation demands. Database -- mySQL, CasSandara mySQL can be used for storing the data which needs to be persisted. Cassandara will be used for storing global identifiers to the persisted data. Since Cassandara is also very good at scaling by introducing more nodes this will leverage Thrift based services as well. And also there is native support between Cassandara and Thrift Cache Server -- Memcached Any requests from Business Services will only talk to Memcached if any non-dirty data is required, otherwise there will be some background jobs that will invalidate the cache from database. The question is: Is the Thrift which is open-sourced one is production-ready? Is it the right stack for services layer to choose when the application (GUI) is primarily gets developed in ASP.NET and DB is mysql? Is there any other caveats that anyone here experienced? One of the main objective behind this stack is to easily scale up with more nodes and also this helps us to use Linux boxes, it will reduce our cost significantly Thoughts please ..

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  • Batch program not running correctly in Windows 7

    - by Jennifer Heidelberger
    I am currently trying to figure out how to get a batch file to run correctly in Windows 7. I have looked on the Internet and have not had much success in finding any useful information on the issue I am encountering. BATCH FILE – The batch file is to open a window to allow students to test on a TDSM server created by ETS eCBT – The test is a CLEP Exam. The batch file is to open the workstation for students to use and it looks like it loads but the Welcome/Login Screen never appears as it should. WSK_LOAD.BAT @echo off rem-------------------------------------------------------------------- rem !!! DO NOT REMOVE OR MODIFY THIS FILE !!! rem !!! THIS FILE IS USED BY THE eCBT SYSTEM !!! rem-------------------------------------------------------------------- SET ECBT_DEFAULT_SERVER_NAME=WR-TESTING1 SET ECBT_BATCH_HOME=C:\ETSBATCH SET ECBT_HOME=\\WR-TESTING1\tdms set ECBT_LOGFILE=%ECBT_BATCH_HOME%\wsk.log SET ECBT_CLIENT_VERSION=4.0 rem---------------------------------------------------------------------- if exist %ECBT_HOME%\client\bin\wks.bat goto avail echo Cannot access %ECBT_HOME%! echo Attempting to open the share … echo If you see the share window, please close it to proceed … rem------------------------------------------------------------------------ :avail %ECBT_HOME%\client\bin\wks.bat I have tried everything I can think of: Run as Administrator, Moved files to run from the HD, made sure all files and folders associated with the program were shared with users and computers, had Windows 7 run compatibility which says it does not contain an .exe file to run, and re-wrote the file. I know it is connecting to the TDMS server as I can see it on the server. The only thing it does not do is bring up the window which is necessary to login to the testing server. The window opens like it should but does not produce the login boxes. Any and all help is appreciated, Jennifer

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  • How do I handle the browser's "share page" intent in android?

    - by gfxmonk
    I read here ( http://androidlittle.blogspot.com/2009/08/intent-filter-for-share-link.html ) what intent-filter is required to handle the "share link" intent that the android web browser sends. I have placed this inside an block in my AndroidManifest.xml like so: <activity android:name=".ShareLink"> <intent-filter> <action android:name="android.intent.action.SEND" /> <category android:name="android.intent.category.DEFAULT" /> <data android:mimeType="text/plain" /> </intent-filter> <meta-data/> </activity> I cannot for the life of me get this to be triggered though. When I share a link in the android browser, the emulator log shows it's creating a chooser intent, but doesn't give the details of the intent the chooser is acting on. No chooser window pops up, and the intent gets handled by the SMS application. I have also tried kicking off the intent manually: adb shell am start -D -a android.intent.action.SEND -c android.intent.category.DEFAULT -t text/plain -d http://google.com/ but the response I get is: Starting: Intent { act=android.intent.action.SEND cat=[android.intent.category.DEFAULT] dat=http://google.com/ typ=text/plain } Error: Activity not started, unable to resolve Intent { act=android.intent.action.SEND cat=[android.intent.category.DEFAULT] dat=http://google.com/ typ=text/plain flg=0x10000000 } Can anyone tell me what I'm doing wrong? My main (launcher) activity works fine, so I assume there is no issue with installation on the emulator.

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  • JQTOUCH, Binding to links pulled in via AJAX, to make another AJAX call? Possible?

    - by nobosh
    Hello. I'm using JQTOUCH using the AJAX example provided in the demo: $('#customers').bind('pageAnimationEnd', function(e, info){ if (!$(this).data('loaded')) { // Make sure the data hasn't already been loaded (we'll set 'loaded' to true a couple lines further down) $('.loadingscreen').css({'display':'block'}); $(this).append($('<div> </div>'). // Append a placeholder in case the remote HTML takes its sweet time making it back load('/mobile/ajax/customers/ .info', function() { // Overwrite the "Loading" placeholder text with the remote HTML $(this).parent().data('loaded', true); // Set the 'loaded' var to true so we know not to re-load the HTML next time the #callback div animation ends $('.loadingscreen').css({'display':'none'}); })); } }); This then returns a nice UL which outputs just fine.. <ul class="edgetoedge"> <li class="viewaction" id="715"> <span class="Title"><a href="/c-view/715/">Lorem Ipsum is simply dummy text of the...</a></span> <div class="meta"> <span class="dateAdded"> 1d ago </span> </div> </li> </ul> This is where I get stuck. How can I then make it so when you click on the link above, it loads the URL wrapped near the class="Title" ? I'd like it to load JQTouch like the first code example. I tried the following two things without success: $('.viewaction').bind('click', function() { alert('wow'); }); $('.viewaction').live('pageAnimationEnd', function(e, info){ }); Thank you!

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  • Setting an instanced class property overwrites the property in all instances.

    - by Peter Moore
    I have two instances of a class. Setting a property in the first instance will set it for the second instance too. Why? It shouldn't. The property is not a "prototype property". Check the code below, what happens to Peter Griffin? Two objects are created and given the name "Peter Griffin" and "Roger Moore" but the alert boxes will say "Peter Moore" and "Roger Moore". What happened to Peter Griffin? var BaseClass = function(){ this.name = ""; this.data = {}; this.data.lastname = ""; } var ExtendedClass = function(){ this.setName = function(fname, lname){ this.name = fname; this.data.lastname = lname; } this.hello = function(){ alert("Full name: " + this.name + " " + this.data.lastname); } } ExtendedClass.prototype = new BaseClass(); pilot = new ExtendedClass(); driver = new ExtendedClass(); pilot.setName("Peter", "Griffin"); driver.setName("Roger", "Moore"); pilot.hello(); // Full name: Peter Moore driver.hello(); // Full name: Roger Moore

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  • Remove a hover class from a checkbox once clicked

    - by seangeraghty
    I am trying to remove a hover class applied to a checkbox via CSS once the box has been clicked. Does anyone know how to do this? JSFiddle http://jsfiddle.net/sa9fe/ The checkbox code is: <div> <input type="checkbox" id="checkbox-1-1" class="regular-checkbox flaticon-boxing3" /> <input type="checkbox" id="checkbox-1-2" class="regular-checkbox" /> <input type="checkbox" id="checkbox-1-3" class="regular-checkbox" /> <input type="checkbox" id="checkbox-1-4" class="regular-checkbox" /> </div> And the CSS for the checkbox are as follows: .regular-checkbox { vertical-align: middle; text-align: center; margin-left: auto; margin-right: auto; align: center; color: #39c; width: 140px; height: 140px; -webkit-border-radius: 6px; -moz-border-radius: 6px; border-radius: 6px; background-color: #fff; border: solid 1px #ccc; -webkit-appearance: none; background-color: #fff; display: inline-block; position: relative;} .regular-checkbox:checked { background-color: #39c; color: #fff !important;} .regular-checkbox:hover { background-color: #f0f7f9;} .regular-checkbox:checked:after { color: #fff; position: absolute; top: 0px; left: 3px; color: #99a1a7; } So any suggestions? Also does anyone know how to change the highlight because at the moment it seems to highlight the edges of the box at a border radius of 3px whereas the boxes I am using are 6px. Thanks Sean (newbie to coding)

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  • How do you use asynchronous ORMs without huge callback chains?

    - by hornairs
    I'm using the relatively immature Joose Javascript ORM plugin (project page) to persist objects in an Appcelerator Titanium (company page) mobile project. Since it's client side storage, the application has to check to see if the database is initialized before starting up the ORM since it inspects the DB tables to construct the classes. My problem is that this sequence of operations (and if this one is like this, other things down the road) takes a lot of callbacks to complete. I have a lot of jumping around in the code that isn't apparent to a maintainer and results in some complex call graphs and whatnot. So, I ask these questions: How would you asynchronously initialize a database and populate it with seed data using an ORM that needs the schema to be correct to function? Do you have any general strategies or links for async/event driven programming and keeping the call graph simple and understandable? Do you have any suggestions for Javascript ORMs/meta object systems that work with HTML 5 as a storage engine and are hopefully framework agnostic? Am I just a big newb and should be able to work this out with ease? Thanks folks!

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  • search form in html/php via ajax

    - by fusion
    i've a search form wherein the database query has been coded in php and the html file calls this php file via ajax to display the results in the search form. the problem is, i would like the result to be displayed in the same form as search.html; yet while the ajax works, it goes to search.php to display the results. search.html: <!DOCTYPE html> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> <script src="scripts/search_ajax.js" type="text/javascript"></script> </head> <body> <form id="submitForm" method="post"> <div class="wrapper"> <div class="field"> <input name="search" id="search" /> </div><br /> <input id="button1" type="submit" value="Submit" class="submit" onclick="run_query();" /><br /> </div> <div id="searchContainer"> </div> </form> </body> </html> if i add action="search.php" to the form tag, it displays the result but on search.php. i'd like it to display on the same form [i.e search.html, and not search.php] if i just add the javascript function [as done above], it displays nothing on search.html

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  • TwoWay Binding to ListBox SelectedItem on more than one list box in WPF

    - by Dan Bryant
    I have a scenario where I have a globally available Properties window (similar to the Properties window in Visual Studio), which is bound to a SelectedObject property of my model. I have a number of different ways to browse and select objects, so my first attempt was to bind them to SelectedObject directly. For example: <ListBox ItemsSource="{Binding ActiveProject.Controllers}" SelectedItem="{Binding SelectedObject, Mode=TwoWay}"/> <ListBox ItemsSource="{Binding ActiveProject.Machines}" SelectedItem="{Binding SelectedObject, Mode=TwoWay}"/> This works well when I have more than one item in each list, but it fails if a list has only one item. When I select the item, SelectedObject is not updated, since the list still thinks its original item was selected. I believe this happens because the two way binding simply ignores the update from source when SelectedObject is not an object in the list, leaving the list's SelectedItem unchanged. In this way, the bindings become out of sync. Does anybody know of a way to make sure the list boxes reset their SelectedItem when the SelectedObject is not in the list? Is there a better way to do this that doesn't suffer from this problem?

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  • Unable to login using OpenID for google apps using vanity URL

    - by GeekTantra
    Unable to login using OpenID for google apps using vanity URL I keep getting the following error whenever I use ajatus.co.in/openid as the openid url: The Allow Access screen appears but followed by this error Unable to log in with your OpenID provider: The OpenID Provider issued an assertion for an Identifier whose discovery information did not match. Assertion endpoint info: ClaimedIdentifier: http://ajatus.co.in/openid?id=1134xxxxxxxxxxxxxxx39 ProviderLocalIdentifier: http://ajatus.co.in/openid?id=1134xxxxxxxxxxxxxxx39 ProviderEndpoint: https://www.google.com/a/ajatus.co.in/o8/ud?be=o8 OpenID version: 2.0 Service Type URIs: Discovered endpoint info: [{ ClaimedIdentifier: http://specs.openid.net/auth/2.0/identifier_select ProviderLocalIdentifier: http://specs.openid.net/auth/2.0/identifier_select ProviderEndpoint: https://www.google.com/a/ajatus.co.in/o8/ud?be=o8 OpenID version: 2.0 Service Type URIs: http://specs.openid.net/auth/2.0/server },] Contents of ajatus.co.in/openid <?xml version="1.0" encoding="UTF-8"?> <xrds:XRDS xmlns:xrds="xri://$xrds" xmlns="xri://$xrd*($v*2.0)"> <XRD> <Service priority="0"> <Type>http://specs.openid.net/auth/2.0/signon</Type> <URI>https://www.google.com/a/ajatus.co.in/o8/ud?be=o8</URI> </Service> <Service priority="0"> <Type>http://specs.openid.net/auth/2.0/server</Type> <URI>https://www.google.com/a/ajatus.co.in/o8/ud?be=o8</URI> </Service> </XRD> </xrds:XRDS> contents of ajatus.co.in/.well-known/host-meta is Link: <https://www.google.com/accounts/o8/site-xrds?hd=ajatus.co.in>; rel="describedby http://reltype.google.com/openid/xrd-op"; type="application/xrds+xml"

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  • Web scraping etiquette

    - by Ash
    I'm considering writing a simple web scraping application to extract information from a website that does not seem to specifically prohibit this. I've checked for other alternatives (eg RSS, web service) to get this information, but there are none available at this stage. Despite this I've also developed/maintained a few websites myself and so I realize that if web scraping is done naively/greedily it can slow things down for other users and generally become a nuisance. So, what etiquette is involved in terms of: Number of requests per second/minute/hour. HTTP User Agent content. HTTP Referer content. HTTP Cache settings. Buffer size for larger files/resources. Legalities and licensing issues. Good tools or design approaches to use. Robots.txt, is this relevant for web scraping or just crawlers/spiders? Compression such as GZip in requests. Update Found this relevant question on Meta: Etiquette of Screen Scaping StackOverflow. Jeff Atwood's answer has some helpful recommendations. Other related StackOverflow questions: Options for html scraping Legalities of screen scraping

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  • flexible length struct array inside another struct using C

    - by renz
    Hi I am trying to use C to implement a simple struct: 2 boxes, each contains different number of particles; the exact number of particles are passed in main(). I wrote the following code: typedef struct Particle{ float x; float y; float vx; float vy; }Particle; typedef struct Box{ Particle p[]; }Box; void make_box(Box *box, int number_of_particles); int main(){ Box b1, b2; make_box(&b1, 5); //create a box containing 5 particles make_box(&b2, 10); //create a box containing 10 particles } I've tried to implement make_box with the following code void make_box(struct Box *box, int no_of_particles){ Particle po[no_of_particles]; po[0].x = 1; po[1].x = 2; //so on and so forth... box->p = po; } It's always giving me "invalid use of flexible array member". Greatly appreciated if someone can shed some light on this.

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  • Capture keystrokes (e.g., function keys) while a messagebox is up

    - by FastAl
    We have a large WinForms app, and there is a built-in bug reporting system that can be activated during testing via the F5 Key. I am capturing the F5 key with .Net's PreFilterMessage system. This works fine on the main forms, modal dialog boxes, etc. Unfortunately, the program also displays windows messageboxes when it needs to. When there is a bug with that, e.g., wrong text in the messagebox or it shouldn't be there, the messagefilter isn't executed at all when the messagebox is up! I realize I could fix it by either rewriting my own messagebox routine, or kicking off a separate thread that polls GetAsyncKeyState and calls the error reporter from there. However I was hoping for a method that was less of a hack. Here's code that manifests the problem: Public Class Form1 Implements IMessageFilter Private Sub Form1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Click MsgBox("now, a messagebox is up!") End Sub Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load Application.AddMessageFilter(Me) End Sub Public Function PreFilterMessage(ByRef m As System.Windows.Forms.Message) _ As Boolean Implements IMessageFilter.PreFilterMessage Const VK_F5 As Int32 = &H74 Const WM_KEYDOWN As Integer = &H100 If m.Msg = WM_KEYDOWN And m.WParam.ToInt32 = VK_F5 Then ' In reality code here takes a screenshot, saves the program state, and shows a bug report interface ' IO.File.AppendAllText("c:\bugs.txt", InputBox("Describe the bug:")) End If End Function End Class Many thanks.

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  • Dynamically created "CheckBoxList" in placeholder controls throwing null reference exception error d

    - by newName
    I have a web form that will dynamically create a number of checkboxlist filled with data based on the number of row in database. Then this is added to a placeholder to be displayed. theres a button when clicked, will add the selected check boxes value into database but right now when the button is clicked and after the postback, the page will show the error "System.NullReferenceException". the following code is written in Page_Load in (!Page.IsNotPostBack) and in a loop that will dynamically create a number of checkboxlist: CheckBoxLis chkContent = new CheckBoxList(); chkContent.ID = chkIDString; //chkIDString is an incremental int based on the row count chkContent.RepeatDirection = RepeatDirection.Horizontal; foreach (List<t> contentList in List<t>) //data retrieved as List<t> using LINQ { ListItem contents = new ListItem(); contents.Text = contentList.Title; contents.Value = contentList.contentID.ToString(); chkContent.Items.Add(contents); } plcSchool.Controls.Add(chkContent); //plcSchool is my placeholder plcSchool.Controls.Add(new LiteralControl("<br>")); protected void btnAdd_Click(object sender, EventArgs e) { CheckBoxList cbl = Page.FindControl("chkContent4") as CheckBoxList; Response.Write(cbl.SelectedValue.ToString()); // now im just testing to get the value from one of the checkboxlist } Anyone able to help, as it seems the controls are not recreated after the postback, therefore it can't find the control and throwing the null reference exception.

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  • Change DIV contents on SELECT change

    - by Ian Batten
    I'm looking for a method of how to change the contents of a div when an option on a select dropdown is selected. I came across the following: <script type="text/javascript" src="jquery.js"></script> <!-- the select --> <select id="thechoices"> <option value="box1">Box 1</option> <option value="box2">Box 2</option> <option value="box3">Box 3</option> </select> <!-- the DIVs --> <div id="boxes"> <div id="box1"><p>Box 1 stuff...</p></div> <div id="box2"><p>Box 2 stuff...</p></div> <div id="box3"><p>Box 3 stuff...</p></div> </div> <!-- the jQuery --> <script type="text/javascript" src="path/to/jquery.js"></script> <script type="text/javascript"> $("#thechoices").change(function(){ $("#" + this.value).show().siblings().hide(); }); $("#thechoices").change(); </script> This worked fine on it's own, but I want to use it with the following script: http://www.dynamicdrive.com/dynamicindex1/chainedmenu/index.htm When using it alongside this chainedmenu script, it just loads all of the DIV box contents at once, rather than each div option when a SELECT option is chosen. Any ideas on what I can use alongside this chainedmenu script to get different DIV contents to show for different SELECT options? Thanks in advance, Ian EDIT Here is a test page: http://freeflamingo.com/t/new.html

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  • Hidden features of Perl?

    - by Adam Bellaire
    What are some really useful but esoteric language features in Perl that you've actually been able to employ to do useful work? Guidelines: Try to limit answers to the Perl core and not CPAN Please give an example and a short description Hidden Features also found in other languages' Hidden Features: (These are all from Corion's answer) C# Duff's Device Portability and Standardness Quotes for whitespace delimited lists and strings Aliasable namespaces Java Static Initalizers JavaScript Functions are First Class citizens Block scope and closure Calling methods and accessors indirectly through a variable Ruby Defining methods through code PHP Pervasive online documentation Magic methods Symbolic references Python One line value swapping Ability to replace even core functions with your own functionality Other Hidden Features: Operators: The bool quasi-operator The flip-flop operator Also used for list construction The ++ and unary - operators work on strings The repetition operator The spaceship operator The || operator (and // operator) to select from a set of choices The diamond operator Special cases of the m// operator The tilde-tilde "operator" Quoting constructs: The qw operator Letters can be used as quote delimiters in q{}-like constructs Quoting mechanisms Syntax and Names: There can be a space after a sigil You can give subs numeric names with symbolic references Legal trailing commas Grouped Integer Literals hash slices Populating keys of a hash from an array Modules, Pragmas, and command-line options: use strict and use warnings Taint checking Esoteric use of -n and -p CPAN overload::constant IO::Handle module Safe compartments Attributes Variables: Autovivification The $[ variable tie Dynamic Scoping Variable swapping with a single statement Loops and flow control: Magic goto for on a single variable continue clause Desperation mode Regular expressions: The \G anchor (?{}) and '(??{})` in regexes Other features: The debugger Special code blocks such as BEGIN, CHECK, and END The DATA block New Block Operations Source Filters Signal Hooks map (twice) Wrapping built-in functions The eof function The dbmopen function Turning warnings into errors Other tricks, and meta-answers: cat files, decompressing gzips if needed Perl Tips See Also: Hidden features of C Hidden features of C# Hidden features of C++ Hidden features of Java Hidden features of JavaScript Hidden features of Ruby Hidden features of PHP Hidden features of Python

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  • Why is Raphael.JS creating paper with dimensions 1000x1000?

    - by Bryan
    I have a demo using raphael.js. The code for it is very simple but when viewed in Internet Explorer (less that version 9) I get a Raphael canvas that is 1000px by 1000px and I can't figure out why. I'm using version 1.5.2 of Raphael. Code below: HTML <!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>Raphael Test</title> <link rel="stylesheet" type="text/css" href="test.css"> <link href="../shared/img/favicon.png" rel="shortcut icon"> </head> <body> <div id="graph"></div> <script src="../shared/js/raphael/raphael-min.js" type="text/javascript"> </script> <script src="test.js" type="text/javascript"> </script> </body> </html> CSS /* Graph */ #graph { padding: 5px; width: 477px; height: 299; } JS var holder = document.getElementById('graph') , width = holder.scrollWidth , height = Math.round(width * 0.5625) + 25 , p = Raphael(10, 50, width, height) , c = p.circle(p.width - 50, p.height - 50, 50); alert(p.width + ' & ' + p.height); I found a discussion in Raphael's Google group with the same problem but no resolution.

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  • If statement with code on same block in haml, RoR

    - by Micke
    Hello, i have this Haml view: !!! strict %html{:xmlns => "http://www.w3.org/1999/xhtml"} %head %meta{:content => "text/html; charset=utf-8", "http-equiv" => "Content-Type"} %title Lighty | #{@page_title || "Home"} %body #popup Login here #fade #wrapper #container #header %a#logo{:href => "/"} #menu %ul#main %li#lighty %a{:href => "/"} Lighty %ul %li %a Link here %li#community %a{:href => "/community"} Community #content And i would like to add an if on line #16 to check if it is the currently visited page and add the class "active" to the li if it returns true. How do i write that if statement there and is there any easier way to do this? My plan now is to use a variable like @current_page and testif it @current_page == "community" and add a class if it returns right. Am i thinking wrong? any easier way to accomplish this? Thanks for your answer and sorry for my bad english.

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  • Fancybox troubles

    - by Abs
    Hello all, I am trying to implement a fancybox. http://fancybox.net/howto I want to call this function on an an element. Full JS file. http://fancybox.net/js/fancybox/jquery.fancybox-1.2.1.js $.fn.fancybox = function(settings) { I have done this: $(document).ready(function() { $("a#inline").fn.fancybox(); }); However, I keep getting this error (through firebug): $("a#inline").fn is undefined [Break on this error] $("a#inline").fn.fancybox(); What does this mean? I am basically having instantiating problems. Please help. EDIT The HTML file: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>Technologies</title> <link href="style.css" rel="stylesheet" type="text/css" /> <script type="text/javascript" src="fancy/jquery-1.3.2.min.js"></script> <script type="text/javascript" src="fancy/jquery.fancybox-1.2.1.js"></script> <link rel="stylesheet" href="fancy/fancybox.css" type="text/css" media="screen" /> <script type="text/javascript"> $(document).ready(function() { $("a#inline").fancybox(); }); </script> </head> <body> <?php include_once ("header.php"); ?> <div id="channel_calc"> How many Channels do I need? <span id="yellow"><a id="inline" href="#ddm">Channel Calculator</a></span> </div>

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  • Xpath that evaluates -all- attributes?

    - by Tres
    I maybe be trying to do something invalid here, but maybe someone smarter than me knows the correct syntax to solve my problem. Given: <group code="vehicle"> <line code="car"> <cell> <box code="price">1000.00</box> </cell> </line> <line code="car"> <cell code="sports"> <box code="price">500.00</box> </cell> </line> </group> If I use //*[@code="vehicle"]//*[@code="car"]//*[@code="price"], I will get both boxes returned (1000.00 and 500.00)--as expected but not what I want. Is there an xpath syntax that will evaluate against all nodes that have an attribute of @code rather than skipping it if it doesn't match with the end result being that I only get back the first box (price of 1000.00)? Like asking, choose the first node with @code and that @code must equal "vehicle", then choose the next node with @code and that @code must equal "car", then choose the next node with @code and @code must equal "price".

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  • HTML.CheckBox persisting state after POST - Refresh ModelState?

    - by Kirschstein
    I have a form that's made up of many items (think order items on an amazon order). Each row has a checkbox associated with them so the user can select many items and click 'remove'. The form is built up a bit like this; <% for (int i = 0; i < Model.OrderItems.Count; i++) { %> <tr> <td><%= Html.Hidden(String.Format("OrderItems[{0}].Id", i), Model.OrderItems[i].Id)%> <%= Html.CheckBox(String.Format("OrderItems[{0}].Checked", i), Model.OrderItems[i].Checked)%></td> <td><%= Html.TextBox(String.Format("OrderItems[{0}].Name", i), Model.OrderItems[i].Name)%></td> <td><%= Html.TextBox(String.Format("OrderItems[{0}].Cost", i), Model.OrderItems[i].Cost)%></td> <td><%= Html.TextBox(String.Format("OrderItems[{0}].Quantity", i), Model.OrderItems[i].Quantity)%></td> </tr> <% } %> The model binder does its magic just fine and the list is correctly populated. However, after I process the request in the action (e.g. remove the appropriate items) and return a new view containing fewer items, the state of the form is 'semi' persisted. Some check boxes remain checked, even though in the edit model all the bools are set to false. I don't have this problem if I return a RedirectToActionResult, but using that as a solution seems a bit of a hacky work around. I think I need to flush/refresh the ModelState, or something similiar, but I'm unsure of the terms to search for to find out how.

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  • javascript: detect if XP or Classic windows theme is enabled

    - by mkoryak
    Is there any way to detect which windows XP theme is in use? I suspect that there is no specific api call you can make, but you may be able to figure it out by checking something on some DOM element, ie feature detection. Another question: does the classic theme even exist on windows vista or windows 7? edit - this is my solution: function isXpTheme() { var rgb; var map = { "rgb(212,208,200)" : false, "rgb(236,233,216)" : true }; var $elem = $("<button>"); $elem.css("backgroundColor", "ButtonFace"); $("body").append($elem); var elem = $elem.get(0); if (document.defaultView && document.defaultView.getComputedStyle) { s = document.defaultView.getComputedStyle(elem, ""); rgb = s && s.getPropertyValue("background-color"); } else if (elem.currentStyle) { rgb = (function (el) { // get a rgb based color on IE var oRG =document.body.createTextRange(); oRG.moveToElementText(el); var iClr=oRG.queryCommandValue("BackColor"); return "rgb("+(iClr & 0xFF)+","+((iClr & 0xFF00)>>8)+","+ ((iClr & 0xFF0000)>>16)+")"; })(elem); } else if (elem.style["backgroundColor"]) { rgb = elem.style["backgroundColor"]; } else { rgb = null; } $elem.remove(); rgb = rgb.replace(/[ ]+/g,"") if(rgb){; return map[rgb]; } } Next step is to figure out what this function returns on non-xp machines and/or figure out how to detect windows boxes. I have tested this in windows XP only, so vista and windows 7 might give different color values, it should be easy to add though. Here is a demo page of this in action: http://programmingdrunk.com/current-projects/isXpTheme/

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