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  • Can I change an NSDictionaries key?

    - by Mark Reid
    I have an NSDictionary object that is populated by NSMutableStrings for its keys and objects. I have been able to change the key by changing the original NSMutableString with the setString: method. They key however remains the same regardless of the contents of the string used to set the key initially. My question is, is the key protected from being changed meaning it will always be the same unless I remove it and add another to the dictionary? Thanks.

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  • <button type="submit"> compatibility?

    - by Mark
    I'd like to have a submit button that submits a different value than is displayed on the button. With <input type="submit"> you can't seem to do this. With <button type="submit"> however, these can be two different values. The question is, will it work in all browsers? Trying this test code here: <form method="get" action=""> <input type="text" name="txt"/> <button type="submit" name="btn" value="val">text</button> </form> In FF 3.6 it updates my address bar with both values appropriately (and responds to me pressing enter in the text box). In IE 8, it also accepts pressing enter, displays the text value in the address bar, but it show the button's value as a GET param at all... does that mean it's not submitting it?

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  • Create table class as a singleton

    - by Mark
    I got a class that I use as a table. This class got an array of 16 row classes. These row classes all have 6 double variables. The values of these rows are set once and never change. Would it be a good practice to make this table a singleton? The advantage is that it cost less memory, but the table will be called from multiple threads so I have to synchronize my code which way cause a bit slower application. However lookups in this table are probably a very small portion of the total code that is executed. EDIT: This is my code, are there better ways to do this or is this a good practice? Removed synchronized keyword according to recommendations in this question. final class HalfTimeTable { private HalfTimeRow[] table = new HalfTimeRow[16]; private static final HalfTimeTable instance = new HalfTimeTable(); private HalfTimeTable() { if (instance != null) { throw new IllegalStateException("Already instantiated"); } table[0] = new HalfTimeRow(4.0, 1.2599, 0.5050, 1.5, 1.7435, 0.1911); table[1] = new HalfTimeRow(8.0, 1.0000, 0.6514, 3.0, 1.3838, 0.4295); //etc } @Override @Deprecated public Object clone() throws CloneNotSupportedException { throw new CloneNotSupportedException(); } public static HalfTimeTable getInstance() { return instance; } public HalfTimeRow getRow(int rownumber) { return table[rownumber]; } }

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  • Detect a tag in hook-script SVN

    - by Mark
    Is there a way that I can detect a tag/branch in SVN? Could I find out where the commits destination is? I want to check that all externals are set to a specific version of the folder they are pointing to, I don't want to prevent commits to a tag with this script. I am writing the script with the c-pyhton bindings.

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  • Validate authenticity of website owner

    - by Cyber Junkie
    Hello all! I'm planning to develop a web app where users will list their site/blog. When people submit their sites, how can I confirm that they are the owners of it? So for instance there is a user Mark who wants to submit someone else's website without their approval. I want to restrict Mark from doing so unless he is the actual owner. My idea was to do a comparison between the user's email domain and the website domain she/he wants to submit. If they match allow the user to submit the website. However most people don't register with their website domain address.. or perhaps I'll implement a Facebook connect in the future. What other methods would you suggest?

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  • php Getting the 'new' values in an array

    - by Mark
    Trying to learn about php's arrays today. I have a set of arrays like this: $a = array ( 0 => array ( 'value' => 'America', ), 1 => array ( 'value' => 'England', ), 2 => array ( 'value' => 'Australia', ), ) $b = array ( 0 => array ( 'value' => 'America', ), 1 => array ( 'value' => 'England', ), 2 => array ( 'value' => 'Canada', ), ) I need to get the 'new' subarrays that array b brings to the table. ie, I need to return array ( 'value' => 'Canada', ) I thought I could first merge $a+$b and then compare the result to $a. $merge = array_merge($a,$b); $result = array_diff($merge,$a); But somehow that does not work. It returns array() How come? And thanks!

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  • jquery select divs with same id

    - by mark
    hei guys i want to select two divs with the same id in jquery. how do i do it? i tried this and it did not work jQuery('#xx').each(function(ind,obj){ //do stuff; }); i have jquery countdown timers in a page, and i update them via ajax. some of these countdown timers repeat and that is why i need to use the same id on the divs.

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  • Smallest Java Runtime I can legally distribute?

    - by Mark
    My Java SWT desktop application is distributed with it's own Java runtime and I want to make the download size as small as possible. I'd like to remove all the classes I don't use from rt.jar, but this is forbidden according to JDK runtime licence (see the README.html file in the root JDK folder). Since Java is open source, am I allowed to compile my own 'Java' runtime from source which doesn't have this distribution restriction? If so, has anyone done this already? (Or do you just ignore the JDK licence terms?)

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  • "An access violation (Segmentation Fault) raised in your program."

    - by Mark
    My C++ program compiles and works up until I call this function from main(): int uword(){fstream infile("numbers.txt"); fstream exfile("wordlist.txt"); string numb[numoflines]; string lines[numoflines]; number = 1; line = 1; for(int i=0;!infile.eof();++i) { getline (infile,number); numb[i] = number; getline (exfile,line); lines[i] = line; } infile.close(); exfile.close(); string yourword; Something here causes it to crash, in the debug it pops up with "An access violation (Segmentation Fault) raised in your program."

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  • php values of one array to key of another array

    - by mark
    I have 2 arrays $arr1 = Array ( [0] => 12 [1] => 4 [2] => 8 [3] => xx [4] => 1 [5] => 1year [6] => 7 ) $arr2 = Array ( [0] => 1 [1] => 2 [2] => 3 [3] => 4 [4] => 5 [5] => 6 [6] => 7 ) I want to create a new array with the values of a2 as keys in $arr1. My resultant array should be like this $arr3 = Array ( [1] => 12 [2] => 4 [3] => 8 [4] => xx [5] => 1 [6] => 1year [7] => 7 )

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  • Python: Parsing a colon delimited file with various counts of fields

    - by Mark
    I'm trying to parse a a few files with the following format in 'clientname'.txt hostname:comp1 time: Fri Jan 28 20:00:02 GMT 2011 ip:xxx.xxx.xx.xx fs:good:45 memory:bad:78 swap:good:34 Mail:good Each section is delimited by a : but where lines 0,2,6 have 2 fields... lines 1,3-5 have 3 or more fields. (A big issue I've had trouble with is the time: line, since 20:00:02 is really a time and not 3 separate fields. I have several files like this that I need to parse. There are many more lines in some of these files with multiple fields. ... for i in clients: if os.path.isfile(rpt_path + i + rpt_ext): # if the rpt exists then do this rpt = rpt_path + i + rpt_ext l_count = 0 for line in open(rpt, "r"): s_line = line.rstrip() part = s_line.split(':') print part l_count = l_count + 1 else: # else break break First I'm checking if the file exists first, if it does then open the file and parse it (eventually) As of now I'm just printing the output (print part) to make sure it's parsing right. Honestly, the only trouble I'm having at this point is the time: field. How can I treat that line specifically different than all the others? The time field is ALWAYS the 2nd line in all of my report files.

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  • Updating access 2000 database through code in VB6

    - by Mark
    I have an application that uses an access 2000 database currently in distribution. I need to update one of the recordsets with additional fields on my customer's computers. My data controls work fine as I have them set to connect in access 2000 format but when I try to open the database in code, I get an unrecognized data format error. What is the best way to replace or add to the database on their machines? Any help is greatly appreciated.

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  • jquery css transform, why translate?

    - by Mark
    The CSS transform translate property, I don't get the difference between changing that value and changing the margin or position with css2. Where would you want to use transform? (ignoring the ie incompat for the moment)

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  • Maintaining file permissions across SVN updates?

    - by Mark Mayo
    I have a series of python scripts with execute permissions in Linux. They are stored in SVN. If I then run svn up to update them, the overwritten files are back to 644 - ie no execute permissions for anyone. Yes I could just script it to chmod +x * afterwards, but surely there's a way to store permissions in SVN or to maintain them when you update? Any suggestions appreciated.

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  • WPF format displayed text?

    - by Mark
    I have a column defined like this: <DataGridTextColumn Binding="{Binding Path=FileSizeBytes, Mode=OneWay}" Header="Size" IsReadOnly="True" /> But instead of displaying the file size as a big number, I'd like to display units, but still have it sort by the actual FileSizeBytes. Is there some way I can run it through a function or something before displaying it?

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  • UIScrollView not scrolling...

    - by Mark
    I have a UIScrollView which contains many UIImageView's UILabel's etc... the labels are well longer that the UIScrollView, but when I run the app, I cannot click and scroll down... Why might this be? Thanks

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  • Measure time in minutes in C

    - by Mark Szymanski
    I am writing a program that will need to measure time in minutes. To be exact, it will wait 10 minutes, execute some code, wait 2 minutes, execute more code and repeat this 5 times (anyone guess what I'm trying to do?) and I am wondering how to do the breaks. Thanks in advance! Oh, and by the way, I'm on Mac.

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  • file names based on file content

    - by Mark
    So iow, some algorithm to generate a unique, reasonable length filename based on binary file content. Two files that have the same binary content should have the same name. Obviously there would be limits to this, as presumably you couldn't have unique reasonable length filenames for each of a large set of large files only differing at a handful of bit positions. But presumably there is some heuristic, best approximation to this that for example exploits known attributes of typical image files. If I had the name of some algorithm that does this I can google it and find other approaches as well.

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  • Real time content editing html5

    - by Mark Lauzon
    So I've seen things like WordPress and FCKEditor, and basically a bunch of stuff that uses external code that I can't see or edit. Whenever I ask about editing and saving the content of a page in real time I just get referenced to an API or I get handed code that only changes the page until it's reloaded. What I want to know is how do I code it myself? I want to add real time content editing to a page without the use of someone else's code. I've checked out code for various forums and wikipedia and whatnot, and all of it references code I don't have access to. Is this a thing? Can I edit a page in real time? I thought of writing the edited text to a file on the server, and then when they click save, reading it back into the code to the section they were editing, but I don't know how to do that or if it's even possible. As a side note, I'm very new to html, but not new to coding. EDIT: The structure can be very much like Wikipedia, it doesn't have to be real time, it just has to work

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  • Grid view w/ progress bars?

    - by Mark
    Trying to decide on the best element to use for a grid view, pretty much exactly like the one you'd see in uTorrent or any other upload/download client. Specifically, I want to have a 'progress' column too (with progress bars). Using VS2010/.NET4. What would you recommend?

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