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  • how does fgets internally works?

    - by Registered User
    Well it is a basic question but I seem confused enough. #include<stdio.h> int main() { char a[100]; printf("Enter a string\n"); scanf("%s",a); } Basically the above is what I want to achieve. If I enter a string James Bond then I want that to be stored in array a. But the problem is because of presence of a blank space in between only James word is stored. So how can I solve this one. UPDATE After the replies given below I understand fgets() would be a better choice. I want to know internal working of fgets as why is it able to store the string with space where as scanf is not able to do the same.

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  • What if I have an API method and a contoller/view method with the same name in RoR?

    - by Chad Johnson
    Suppose I want to be able to view a list of products on my site by going to /product/list. Great. So this uses my 'list' view and outputs some HTML which my web browser will render. But now suppose I want to provide a REST API to my client where they can get a list of their products. So I suppose I'd have them authenticate with oAuth and then they'd call /product/list which would return a JSON array of their products. But like I said earlier, /product/list displays an HTML web page. So, I have a conflict. What is normal practice as far as providing APIs in Rails? Should I have a subdirectory, 'api', in /app/controller, and another 'product' controller? So my client would go to /api/product/list to get a list of their products? I'm a bit new to RoR, so I don't have the best grasp of the REST functionality yet, but hopefully my question makes sense.

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  • Yet another php ereg fix

    - by casben79
    I have a small chunk of coding I need to take from ereg to preg_match. Here is the code. function be_file_list($d, $x) { foreach (array_diff(scandir($d), array('.', '..')) as $f) { if (is_file($d . '/' . $f) && (($x) ? ereg($x.'$',$f) : 1)) { $l[] = $f; } } return $l; } This code works as expected even if it doesn't look too pretty (source: http://www.php.net/manual/en/function.scandir.php) but as ereg is deprecated, I would really like to make it preg_match, or something like that. I have been messing with this all afternoon and the PC is about to go out the window. I would have thought that preg_match("/"$x.'$',$f"/") would have worked but no dice. Any help would be great. Cheers Ben

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  • getting a key out of a javascript hash

    - by mcintyre321
    I working with the latest draft of the twitter annotations api. An example bit of data looks like status { annotations : [ {myAnnotationType:{myKey:myValue}}, {someoneElsesAnnotationType:{theirKey:theirValue}}, ] } now i want to check a status to see if it has an annotation with myAnnotationType in it. If annotations was a hash instead of an array I could just write var ann = status.annotations.myAnnotationType. But its not so I wrote this instead: function getKeys(obj){ var keys = []; for (key in obj) { if (obj.hasOwnProperty(key)) { keys[keys.length] = key; } } return keys; } function getAnnotation(status, type){ for(var i=0;i<status.annotations.length;i++){ var keys = getKeys(status.annotations[i]); for(var j=0;j<keys.length;j++){ if(keys[j] == type){ return status.annotations[i]; } } } } var ann = getAnnotation(status, "myAnnotationType"); There must be a better way! Is there? PS I can't use jquery or anything as this is js to be used in a caja widget and the container doesn't support external libs

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  • How to change ldap password using zend

    - by NAVEED
    I am working with zend framework, PHP , Ldap on Ubuntu. I am authenticating users from ldap using zend library. Now I want to change user's ldap passwords using zend. Any Idea? This is the method that I am using to get zend authentication adapter. It is working perfectly and users are authenticated using this adapter. public function getAuthAdapter(array $params) { $front = Zend_Controller_Front::getInstance(); $options = $front->getParam('bootstrap')->getOption('ldap'); $params['username'] = split( "@" , $params['username'] ); $username = 'cn=' . $params['username'][0] . ',' . $options['server1']['baseDn']; $adapter = new Zend_Auth_Adapter_Ldap( $options, $username, $params['password']); $adapter->setIdentity( $params['username'] ); $adapter->setCredential( $params['password'] ); return $adapter; } Now how to change ldap passwords? Thanks

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  • Is NSDictionary key order guaranteed the same as initialized if it never changes?

    - by Thaurin
    I've run into the same problem as found in this question. However, I have a follow-up question. I seem to be in the same situation as the original asker: I have a plist with a hierarchy of dictionaries that define a configuration screen. These are not mutable and will stay the same throughout the application. Since the original discussion seems to focus on problems arising from mutating the dictionary, I must ask for comfirmation: is the order of a dictionary guaranteed the same as they are in the plist, i.e. as it is read (with initWithContentsOfFile)? Can I use allKeys on it in this case to get a correct-order array of keys if the dictionary never changes?

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  • Ajax Fancy Capture in CakPHP

    - by Constantin.FF
    I have found a nice ajax capture which i would like to use in a CakePHP framework website. The plugin can be found here: http://www.webdesignbeach.com/beachbar/ajax-fancy-captcha-jquery-plugin What I have tried: in the controller: public function index($slug = null, $capture = false) { if($capture AND $capture =="get_capture"){ $rand = rand(0,4); $_SESSION['captcha'] = $rand; echo $rand; die; } if (!empty($this->data) && $_POST['captcha'] == $_SESSION['captcha']) { .... save the post } } in the view: $selectURL = " $(function() { $('.ajax-fc-container').captcha({ borderColor: 'silver', captchaDir: 'http://localhost/img/capture', url: 'http://localhost/contacts/index/contacts/get_capture', formId: 'MessageIndexForm', }); });"; $this->Html->scriptBlock($selectURL, array('inline' => false)); also I have tried with url: 'http://localhost/js/capture.php' which is the original file coming with the plugin but still not working.

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  • How do I write a spec to verify the rendering of partials?

    - by TheDeeno
    I'm using rr and rspec. Also, I'm using the collection short hand for partial rendering. My question: How do I correctly fill out the the following spec? before(:each) do assigns[:models] = Array.new(10, stub(Model)) end it "should render the 'listing' partial for each model" do # help me write something that actually verifies this end I've tried a few examples from the rspec book, rspec docs, and rr docs. Everything I try seems to leave me with runtime errors in the test - not failed assertions. Rather than show all the transformations I've tried, I figured all I'd need if someone showed me one that actually worked. I'd be good to go from there.

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  • what is for....in statement in javascript

    - by dramasea
    anyone can explain how to use for...in statement in javascript. I had read the w3school article but i think it is not so clear.Below is the code, please explain this: <html> <body> <script type="text/javascript"> var x; var mycars = new Array(); mycars[10] = "Saab"; mycars[20] = "Volvo"; mycars[30] = "BMW"; for (x in mycars) { document.write(mycars[x] + "<br />"); } </script> </body> </html>

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  • OOP function and if statement

    - by Luke
    Not sure if I can ask two questions? If i run the following function in my database class function generateUserArray() { $u = array(); $result = $this->selectAllUsers(); while( $row=mysql_fetch_assoc($result)) { $u[] = $row['username']; } return $u; } Would i call it like this? $u[] = $datebase->generateUserArray(); My second question, will this work: else if($database->addLeagueInformation($subname, $subformat, $subgame, $subseason, $subwindow, $subadmin, $subchampion, $subtype) && $databases->addLeagueTable($name) && $_SESSION['players'] == $subplayers && $comp_name = "$format_$game_$name_$season" && $_SESSION['comp_name'] = $comp_name) Thankyou

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  • Capturing the contents of <select>

    - by joey mueller
    I'm trying to use a regular expression to capture the contents of all option values inside an HTML select element For example, in: <select name="test"> <option value="blah">one</option> <option value="mehh">two</option> <option value="rawr">three</option> </select> I'd like to capture one two and three into an array. My current code is var pages = responseDetails.responseText.match(/<select name="page" .+?>(?:\s*<option .+?>([^<]+)<\/option>)+\s*<\/select>/); for (var c = 0; c<pages.length; c++) { alert(pages[c]); } But it only captures the last value, in this case, "three". How can I modify this to capture all of them? Thanks!

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  • Suggestion to reverse string in c#

    - by HasanGursoy
    Is this the right method to reverse a string? I'm planning to use it to reverse a string like: Products » X1 » X3 to X3 « X1 « Products I want it to be a global function which can be used elsewhere. public static string ReverseString(string input, string separator, string outSeparator) { string result = String.Empty; string[] temp = Regex.Split(input, separator, RegexOptions.IgnoreCase); Array.Reverse(temp); for (int i = 0; i < temp.Length; i++) { result += temp[i] + " " + outSeparator + " "; } return result; }

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  • How do you data drive task dependencies via properties in psake?

    - by Jordan
    In MSBuild you can data drive target dependencies by passing a item group into a target, like so: <ItemGroup> <FullBuildDependsOn Include="Package;CoreFinalize" Condition="@(FullBuildDependsOn) == ''" /> </ItemGroup> <Target Name="FullBuild" DependsOnTargets="@(FullBuildDependsOn)" /> If you don't override the FullBuildDependsOn item group, the FullBuild target defaults to depending on the Package and CoreFinalize targets. However, you can override this by defining your own FullBuildDependsOn item group. I'd like to do the same in psake - for example: properties { $FullBuildDependsOn = "Package", "CoreFinalize" } task default -depends FullBuild # this won't work because $FullBuildDependsOn hasn't been defined yet - the "Task" function will see this as a null depends array task FullBuild -depends $FullBuildDependsOn What do I need to do to data drive the task dependencies in psake?

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  • ToolStripComboBox + objects default string value

    - by Martin
    I am using a ToolStripComboBox to list some data. I am populating this combo with some custom objects: For Each obj As myObject In myObjectList myToolStripComboBox.Items.Add(obj) Next This works great except the text displayed in the combo is the name of the object class. I can understand why and realise that I need to do something to make the combo use a property from my class instead. The help files state: To add objects to the list at run time, assign an array of object references with the AddRange method. The list then displays the default string value for each object. You can add individual objects with the Add method. The bit in bold suggests I need to setup the default string value in my class. How would I go about doing this?

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  • Should we use NsMutableArray in CGRectIntersect ?

    - by srikanth rongali
    To know whether two sprites cross each other or not, should we use NSMutableArray to store the sprites ? In my game one fixed sprite(player) is there. And the other is a bullet fired and if this sprite intersects player sprite, then enemy won. I have used NSMutable Array to store the bullet sprites. If I do not use NSMutableArray then even though the the bullet intersects player it is not recognizing the intersection ? I am using ( (CGRectIntersectsRect(bulletRect, playerRect)). Thank You.

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  • formatting NSArray

    - by califguy
    So from the code below, I have managed to get the string *tempstring into an array chunk. Now chunk[0] contains 'a' while chunk[1] contains 'aa'. I am trying to format chunk[0] to '0a' which I can using the replaceObjectAtIndex method. Here's my question: How do I detect that chunk[0] is formatted as 'a' and not '0a'. I want to check all the indexes and make sure they have double digits and if not use a 0 to prefix it. NSString *tempstring = @"a-aa-bb"; NSMutableArray *chunk = [tempstring componentsSeparatedByString: @"-"]; NSLog(@"%@",[chunk objectAtIndex:0]);

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  • PHP / MYSQL: Sanitizing user input - is this a bad idea?

    - by Greg
    I have one "go" script that fetches any other script requested and this is what I wrote to sanitize user input: foreach ($_REQUEST as $key => $value){ if (get_magic_quotes_gpc()) $_REQUEST[$key] = mysql_real_escape_string(stripslashes($value)); else $_REQUEST[$key] = mysql_real_escape_string($value); } I haven't seen anyone else use this approach. Is there any reason not to? EDIT - amended for to work for arrays: function mysql_escape($thing) { if (is_array($thing)) { $escaped = array(); foreach ($thing as $key => $value) { $escaped[$key] = mysql_escape($value); } return $escaped; } // else if (get_magic_quotes_gpc()) $thing = stripslashes($thing); return mysql_real_escape_string($thing); } foreach ($_REQUEST as $key => $value){ $_REQUEST[$key] = mysql_escape($value); }

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  • My site's error log is filled with the errors related to ScriptResource.axd

    - by user367305
    My Site's error log is filled with these errors:- This is an invalid script resource request. Invalid viewstate. Invalid character in a Base-64 string. Invalid length for a Base-64 char array. All these errors are appearing at least 100 times a day. After doing some RnD on internet i have done following things:- 1- define machine key in my web config. 2- created robots.txt file and add ScriptResource.axd file in that. Can some one guide me what I am missing or doing wrong.

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  • [C++]Advantage of using a static member function instead of an equivalent non-static member function

    - by jonathanasdf
    I was wondering whether there's any advantages to using a static member function when there is a non-static equivalent. Will it result in faster execution (because of not having to care about all of the member variables), or maybe less use of memory (because of not being included in all instances)? Basically, the function I'm looking at is an utility function to rotate an integer array representing pixel colours an arbitrary number of degrees around an arbitrary centre point. It is placed in my abstract Bullet base class, since only the bullets will be using it and I didn't want the overhead of calling it in some utility class. It's a bit too long and used in every single derived bullet class, making it probably not a good idea to inline. How would you suggest I define this function? As a static member function of Bullet, of a non-static member function of Bullet, or maybe not as a member of Bullet but defined outside of the class in Bullet.h? What are the advantages and disadvantages of each?

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  • ls output changing when used through exec()

    - by user359650
    I'm using the ls command via PHP and exec() and I get a different output than when I run the same command via the shell. When running ls through PHP the year and month of the date get changed into the month name: Running the command through the shell: $ ls -lh /path/to/file -rw-r--r-- 1 sysadmin sysadmin 36M 2011-05-18 13:25 file Running the command via PHP: <?php exec("ls -lh /path/to/file", $output); print_r($output); /* Array ( [0] => -rw-r--r-- 1 sysadmin sysadmin 36M May 18 13:25 file ) */ Please note that: -the issue doesn't occur when I run the PHP script via the cli (it only occurs when run through apache) -I checked the source code of the page to make sure that what I was seeing was what I was getting (and I do get the month name instead of the proper date) -I also run the ls command through the shell as the www-data user to see if ls was giving different output depending on the user (the output is the always the same from the shell, that is I get the date in yyyy-mm-dd instead of the month name)

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  • GA written in Java

    - by EnderMB
    I am attempting to write a Genetic Algorithm based on techniques I had picked up from the book "AI Techniques for Game Programmers" that uses a binary encoding and fitness proportionate selection (also known as roulette wheel selection) on the genes of the population that are randomly generated within the program in a two-dimensional array. I recently came across a piece of pseudocode and have tried to implement it, but have come across some problems with the specifics of what I need to be doing. I've checked a number of books and some open-source code and am still struggling to progress. I understand that I have to get the sum of the total fitness of the population, pick a random number between the sum and zero, then if the number is greater than the parents to overwrite it, but I am struggling with the implementation of these ideas. Any help in the implementation of these ideas would be very much appreciated as my Java is rusty.

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  • Formatting Telerik Chart and Legend Labels in Silverlight

    - by Bryan
    I am trying to format a column called 'Month' using the 3-character month abbreviation in my data grid which is bound to a bar chart. My grid and chart are based on this demo example: http://demos.telerik.com/silverlight/#Chart/Aggregates. Basically, the grid compiles data and summarizes by Year, Quarter, Month, and then some other categories as well. For the Month column, I tried two different methods (for sorting purposes, I have to use an integer or some date value for the month). First, I just made Month an integer field and then used a converter mapped in the xaml for the 'Month' field to display 'JAN', 'FEB', etc. This worked fine for the grid, but the chart would display 1, 2, etc. instead of the month abbreviation. I researched this and was not able to come up with a solution to map the converter to the chart. So, I tried making the Month field a datetime and then set the value to 1/1/1900, 2/1/1900, etc. and specified the format of the field to 'MMM' in the xaml for the grid. I then used the following statement to set the the format in the chart when the user grouped by month: SalesAnalysisChart.DefaultView.ChartArea.AxisX.DefaultLabelFormat = "MMM"; This partially worked in that when the months were displayed across the x-axis they were labeled properly, but not when they appeared in the legend (the user, of course, can group by any of the columns which may or may not include month). I've tried setting LegendItemLabelFormat, ItemLabelFormat, etc. but without success. I'm not sure of the element on which to set the property. I only need to change the default format for just the Month column - all other columns should display normally when grouped. I also came across a class called 'LegendItemFormatConverter' which looks promising but I can't find any examples as to how to implement it. I would actually prefer the converter method because the converter I wrote displays the month abbreviation in all caps, whereas the 'MMM' format displays in upper/lower case. Here is the converter code that I originally used for the grid: using System; using System.Net; using System.Windows; using System.Windows.Controls; using System.Windows.Documents; using System.Windows.Ink; using System.Windows.Input; using System.Windows.Media; using System.Windows.Media.Animation; using System.Windows.Shapes; using System.Windows.Data; namespace ApolloSL { public class MonthConverter : IValueConverter { public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture) { if (value != null) { DateTime date = new DateTime(1900, (Int32)value, 1); return date.ToString("MMM").ToUpper(); } else { return ""; } } public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture) { return value.ToString(); } } } Please help... Thanks in advance for your assistance, Bryan

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  • Dynamic programming: Largest diamond(rhombus) block

    - by Darksody
    I have a small program to do in Java. I have a 2D array filled with 0 and 1, and I must find the largest rhombus (as in square rotated by 90 degrees) and their numbers. Example: 0 1 0 0 0 1 1 0 1 1 1 0 1 0 1 1 1 1 0 1 1 1 1 1 0 0 1 1 1 1 1 1 1 1 1 1 Result: 1 1 1 1 1 1 1 1 1 1 1 1 1 The problem is similar to this SO question. If you have any idea, post it here.

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  • Craft a JSONpath expression so that it retrieves only a specific value?

    - by Alex
    Hello, I have some JSON of which the following is a small sample: results": { "div": [ { "class": "sylEntry", "id": "sylOne", "div": [ { "class": "sT", "id": "sOT", "p": "Mon 11/17, Computer work time" }, { "class": "des", "id": "dOne", "p": "All classes Siebel 0218" } ] }, I would like to only retrieve the "p" content for the div element with class "sT". I would like to use a loop and doing something like this: var arrayOfResults = $.results..div.p does not work because I only want to retrieve the p value for the div element with class "sT". So how do I construct my JSONpath so that it will retrive the array of p elements that are contained within the divs class "sT". Thanks!!

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  • iPhone SDK Nested For Loop performance

    - by Skeep
    Hi All, I have a NSArray of string id and a NSDictionary of NSDictionary objects. I am currently looping through the string id array to match the id value in the NSDictionary. There are around 200 NSDictionary objects and only 5 or so string ID. My current code is such: for (NSString *Str in aArr) { for (NSDictionary *a in apArr) { if ([a objectForKey:@"id"] == Str) { NSLog(@"Found!"); } } } The performance of the above code is really slow and I was wondering if there is a better way to do this?

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