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  • preg_match , regexp , php , extract text from html

    - by Michael
    I'm trying to extract "Florida (FL)" from http://www.auctionarms.com/search/displayitem.cfm?itemnum=9736364&oh=216543. My code is //get location $pattern = "/(State)<\/i\:<\/td(.*)<\/td/"; preg_match_all($pattern, $htmlContent, $matches); print_r($matches); any idea why is not working ?

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  • XNA - Mouse coordinates to word space transformation

    - by Gabriel Butcher
    I have a pretty annoying problem. I would like to create a drawing program, using winform + XNA combo. The most important part would be to transform the mouse position into the XNA drawn grid - I was able to make it for the translations, but it only work if I don't zoom in - when I do, the coordinates simply went horrible wrong. And I have no idea what I doing wrong. I tried to transform with scaling matrix, transform with inverse scaling matrix, multiplying with zoom, but none seems to work. In the beginning (with zoom value = 1) the grid starts from (0,0,0) going to (Width, Height, 0). I was able to get coordinates based on this grid as long as the zoom value didn't changed at all. I using a custom shader, with orthographic projection matrix, identity view matrix, and the transformed world matrix. Here is the two main method: internal void Update(RenderData data) { KeyboardState keyS = Keyboard.GetState(); MouseState mouS = Mouse.GetState(); if (ButtonState.Pressed == mouS.RightButton) { camTarget.X -= (float)(mouS.X - oldMstate.X) / 2; camTarget.Y += (float)(mouS.Y - oldMstate.Y) / 2; } if (ButtonState.Pressed == mouS.MiddleButton || keyS.IsKeyDown(Keys.Space)) { zVal += (float)(mouS.Y - oldMstate.Y) / 10; zoom = (float)Math.Pow(2, zVal); } oldKState = keyS; oldMstate = mouS; world = Matrix.CreateTranslation(new Vector3(-camTarget.X, -camTarget.Y, 0)) * Matrix.CreateScale(zoom / 2); } internal PointF MousePos { get { Vector2 mousePos = new Vector2(Mouse.GetState().X, Mouse.GetState().Y); Matrix trans = Matrix.CreateTranslation(new Vector3(camTarget.X - (Width / 2), -camTarget.Y + (Height / 2), 0)); mousePos = Vector2.Transform(mousePos, trans); return new PointF(mousePos.X, mousePos.Y); } } The second method should return the coordinates of the mouse cursor based on the grid (where the (0,0) point of the grid is the top-left corner.). But is just don't work. I deleted the zoom transformation from the matrix trans, as I didnt was able to get any useful result (most of the time, the coordinates was horrible wrong, mostly many thousand when the grid's size is 500x500). Any idea, or suggestion? I trying to solve this simple problem for two days now :\

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  • Designing a database file format

    - by RoliSoft
    I would like to design my own database engine for educational purposes, for the time being. Designing a binary file format is not hard nor the question, I've done it in the past, but while designing a database file format, I have come across a very important question: How to handle the deletion of an item? So far, I've thought of the following two options: Each item will have a "deleted" bit which is set to 1 upon deletion. Pro: relatively fast. Con: potentially sensitive data will remain in the file. 0x00 out the whole item upon deletion. Pro: potentially sensitive data will be removed from the file. Con: relatively slow. Recreating the whole database. Pro: no empty blocks which makes the follow-up question void. Con: it's a really good idea to overwrite the whole 4 GB database file because a user corrected a typo. I will sell this method to Twitter ASAP! Now let's say you already have a few empty blocks in your database (deleted items). The follow-up question is how to handle the insertion of a new item? Append the item to the end of the file. Pro: fastest possible. Con: file will get huge because of all the empty blocks that remain because deleted items aren't actually deleted. Search for an empty block exactly the size of the one you're inserting. Pro: may get rid of some blocks. Con: you may end up scanning the whole file at each insert only to find out it's very unlikely to come across a perfectly fitting empty block. Find the first empty block which is equal or larger than the item you're inserting. Pro: you probably won't end up scanning the whole file, as you will find an empty block somewhere mid-way; this will keep the file size relatively low. Con: there will still be lots of leftover 0x00 bytes at the end of items which were inserted into bigger empty blocks than they are. Rigth now, I think the first deletion method and the last insertion method are probably the "best" mix, but they would still have their own small issues. Alternatively, the first insertion method and scheduled full database recreation. (Probably not a good idea when working with really large databases. Also, each small update in that method will clone the whole item to the end of the file, thus accelerating file growth at a potentially insane rate.) Unless there is a way of deleting/inserting blocks from/to the middle of the file in a file-system approved way, what's the best way to do this? More importantly, how do databases currently used in production usually handle this?

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  • How to convert nib/xib to objective C code?

    - by Mickey Shine
    I am just wondering is there a way to convert nib/xib file to ojbective C code? I just want to find the equivalent code to the nib/xib file (I've tried nib2objc, seems the result is not what I am after). Actually I want to compile this example http://developer.apple.com/iphone/library/samplecode/TableSearch/index.html without nib/xib file (I want it exactly the same with original), any idea about doing this?

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  • How can I prevent users from overriding the total cost in a shopping cart, when submitted as a hidde

    - by Gobi
    I'm having serious problems with accepting payments. I'm passing the total amount in a hidden field <input type="hidden" name="checkout-flow-support.merchant-checkout-flow-support.shipping-methods.flat-rate-shipping-1.price" value="129.00"/> Some of the users changed this value to 2 using firebug and submitted the form. Instead of getting $129, we only received $2. I have no idea how to proceed this anyone help me quick .

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  • How to create a specific date in the distant past, the BC era.

    - by alloy
    I’m trying to create a date in the BC era, but failing pretty hard. The following returns ‘4713’ as the year, instead of ‘-4712’: NSCalendar *calendar = [[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar]; NSDateComponents *components = [NSDateComponents new]; [components setYear: -4712]; NSDate *date = [calendar dateFromComponents:components]; NSLog(@"%d", [[calendar components:NSYearCalendarUnit fromDate: date] year]); Any idea what I’m doing wrong?

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  • Unable to download jars using M2Eclipse (0.10.0, using Maven 3)

    - by DeepNightTwo
    I am using M2Eclipse (0.10.0, Maven 3)in projects. I can add Maven dependency using m2eclipse. But dependency jars couldn't be downloaded. Instead, it created a file in each local repo folder named [JAR_Name].jar.lastupdate. The content of this file is some thing like : http\://[REPO_URL]/central/=1276221188566 Even using Maven 3 command line. Jars couldn't be downloaded. Any idea about how could this happen?

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  • MongoDB query against geospatial index with maxDistance fails from node.js client

    - by user1735497
    I want to query against a geospatial index in mongo-db (designed after this tutorial http://www.mongodb.org/display/DOCS/Geospatial+Indexing). So when I execute this from the shell everything works fine: db.sellingpoints.find(( { location : { $near: [48.190120, 16.270895], $maxDistance: 7 / 111.2 } } ); but the same query from my nodejs application (using mongoskin or mongoose), won't return any results until i set the distance-value to a very high number (5690) db.collection('sellingpoints') .find({ location: { $near: [lat,lng], $maxDistance: distance / 111.2} }) .limit(limit) .toArray(callback); Has someone any idea how to fix that?

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  • What to name column in database table that holds versioning number

    - by rwmnau
    I'm trying to figure out what to call the column in my database table that holds an INT to specific "record version". I'm currently using "RecordOrder", but I don't like that, because people think higher=newer, but the way I'm using it, lower=newer (with "1" being the current record, "2" being the second most current, "3" older still, and so on). I've considered "RecordVersion", but I'm afraid that would have the same problem. Any other suggestions? "RecordAge"? I'm doing this because when I insert into the table, instead of having to find out what version is next, then run the risk of having that number stolen from me before I write, I just insert insert with a "RecordOrder" of 0. There's a trigger on the table AFTER INSERT that increments all the "RecordOrder" numbers for that key by 1, so the record I just inserted becomes "1", and all others are increased by 1. That way, you can get a person's current record by selection RecordOrder=1, instead of getting the MAX(RecordOrder) and then selecting that. PS - I'm also open to criticism about why this is a terrible idea and I should be incrementing this index instead. This just seemed to make lookups much easier, but if it's a bad idea, please enlighten me! Some details about the data, as an example: I have the following database table: CREATE TABLE AmountDue ( CustomerNumber INT, AmountDue DECIMAL(14,2), RecordOrder SMALLINT, RecordCreated DATETIME ) A subset of my data looks like this: CustomerNumber Amountdue RecordOrder RecordCreated 100 0 1 2009-12-19 05:10:10.123 100 10.05 2 2009-12-15 06:12:10.123 100 100.00 3 2009-12-14 14:19:10.123 101 5.00 1 2009-11-14 05:16:10.123 In this example, there are three rows for customer 100 - they owed $100, then $10.05, and now they owe nothing. Let me know if I need to clarify it some more. UPDATE: The "RecordOrder" and "RecordCreated" columns are not available to the user - they're only there for internal use, and to help figure out which is the current customer record. Also, I could use it to return an appropriately-ordered customer history, though I could just as easily do that with the date. I can accomplish the same thing as an incrementing "Record Version" with just the RecordCreated date, I suppose, but that removes the convenience of knowing that RecordOrder=1 is the current record, and I'm back to doing a sub-query with MAX or MIN on the DateTime to determine the most recent record.

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  • Insert statement with where clause.

    - by debraj
    I had a table with unique Date_t1 date type field, but in Table description field is not mentioned as unique, now while inserting new row i need to validate if date exist or not, If already exist i should not allow to make changes on that row, neither a new row needs to be created, Any idea how to resolve this problem in efficient way,

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  • Reset TextBox.Background to default in WPF so it still gets updated when system settings change

    - by Neo
    I have a TextBox that I wish to reset its Background property to its default value after changing it to a different colour. I have tried setting it to SystemColors.WindowBrush, but then, if the Display Settings are updated to change this value, it doesn't get dynamically reflected in the TextBox (it does normally if TextBox.Background hasn't been touched). Any idea how to do this?

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  • silverlight 4 with java service.

    - by Muhammad Jamal Shaikh
    hi , i intent to replace wcf service with some java service . how should i design my wcf service such that it's gets replaced or can be replaced with the java service later such that i dont have to do any work or very little work on the client i.e on my silver light application . any idea's / suggestions? P.S that is the reason i am not using RIA services.

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  • WPF ItemsControl binding and the item order

    - by user109534
    I have ItemsControl in a WPF application, which is bind to an array of objects. And I am using ItemTemplate to render the list. I want to display for each item in the list the item order, like for example Customer 1 Name : xxxxx Age: 9999 Customer 2 Name : yyyy Age: 8888 Any idea how to do it Thanks

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  • Shortening jQuery Code by Replacing Variable

    - by Jerry
    I have a form with a bunch of dropdown options that I'm dressing up by allowing the option to be selected by clicking links and (in the future, images) instead of using the actual dropdown. There are a lot of dropdowns and most all will repeat the same basic idea, and some will literally repeat just with different variables. Here's the HTML for one of those. <tr class="box1"> <td> <select id="cimy_uef_7"> <option value="Boy">Boy</option> <option value="Girl">Girl</option> </select> </td> </tr> Then the corresponding fancier links to click that will select the corresponding option in the dropdown. <div id="genderBox1"> <div class="gender"><a class="boy" href="">Boy</a></div> <div class="gender"><a class="girl" href="">Girl</a></div> </div> So, when you click the link "Boy" it will select the corresponding dropdown value "Boy" There are going to be multiple Box#, so I can just repeat the jQuery each time with the new variables, but there's surely a shorter way. Here's the jQuery that makes it work. //Box1 Gender var Gender1 = $('select#cimy_uef_7'); var Boy1 = $("#genderBox1 .gender a.boy"); var Girl1 = $("#genderBox1 .gender a.girl"); //On Page Load - Check Gender Box 1 Selection and addClass to corresponding div a if ( $(Gender1).val() == "Boy" ) { $(Boy1).addClass("selected"); } else { $(Boy1).removeClass("selected"); } if ( $(Gender1).val() == "Girl" ) { $(Girl1).addClass("selected"); } else { $(Girl1).removeClass("selected"); } //On Click - Change Gender Box 1 select based on image click $(Boy1).click(function(event) { event.preventDefault(); $(this).addClass("selected"); $(Gender1).val("Boy"); $(Girl1).removeClass("selected"); }); $(Girl1).click(function(event) { event.preventDefault(); $(this).addClass("selected"); $(Gender1).val("Girl"); $(Boy1).removeClass("selected"); }); My thought for shortening it was to just have a list of variables for each box and cycle through the numbers- 1,2,3,4 and have the jQuery grab the same # for each variable, but I can't figure out a way to do it. Let me know if there's anything else I can provide to make the question better. This is my best idea for shortening this code, as I'm still very much a beginner at jQuery, but I'm positive there are much better ideas out there, so feel free to recommend a better path if you see it :)

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  • Tap Status Bar Time

    - by Jim Bonner
    I am using a UITableView in my app. After scrolling down, if I tap on the status bar time, the table is repositioned to the top. Any idea how this is done and is it possible to intercept the action. TIA, Jim B

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  • WPF: Order of stretch sizing

    - by RFBoilers
    I'm creating a modal dialog window which contains three essential parts: a TextBlock containing instructions, a ContentControl for the dialog panel, and a ContentControl for the dialog buttons. Each of these parts are contained in a separate Grid row. I have some specific constraints when it comes to how the dialog should be sized. The issue I'm having is with the instructions TextBlock. I want the instructions to be as wide as the ContentControl for the dialog panel. The instructions should then wrap and grow vertically as needed. Should the instructions not be able to grow vertically, then it should begin to grow horizontally. Getting the instructions to be the width of the ContentControl and grow vertically was simple. The part I can't seem to figure out is how to get it to grow horizontally when out of vertical space. My initial thought was to create a class that extends TextBlock and override MeasureOverride. However, that method is sealed. Currently, I'm playing with the idea of have the dialog Window override MeasureOverride to calculate the available size for the instructions block. Am I missing a much simpler way of accomplishing this? Does anyone have any better ideas than this? Messing with MeasureOverride seems like it will be a lot of work. Here is some sample code to give you a general idea of how the dialog is laid out: <Window x:Class="Dialogs.DialogWindow" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" x:Name="dialogWindow" ShowInTaskbar="False" WindowStyle="None" AllowsTransparency="True" Background="Transparent" ResizeMode="NoResize" SizeToContent="WidthAndHeight" WindowStartupLocation="CenterScreen"> <Border Style="{StaticResource WindowBorderStyle}" Margin="15"> <Grid> <Grid.RowDefinitions> <RowDefinition Height="Auto"/> <RowDefinition Height="Auto"/> <RowDefinition Height="Auto"/> </Grid.RowDefinitions> <TextBlock Margin="25,5" VerticalAlignment="Top" HorizontalAlignment="Left" Text="{Binding Instructions}" TextWrapping="Wrap" Width="{Binding ElementName=panelContentControl, Path=ActualWidth, Mode=OneWay}"/> <ContentControl x:Name="panelContentControl" Grid.Row="1" Margin="25,5" Content="{Binding PanelContent}"/> <ContentControl x:Name="buttonsContentControl" Grid.Row="2" HorizontalAlignment="Right" VerticalAlignment="Center" Margin="25,5" Content="{Binding ButtonsContent}"/> </Grid> </Border> </Window>

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  • How to open tab on mouse over using jquery without using iframe and putting all content in same page

    - by jitendra
    I just want to open another tab without refreshing and on mouse over like this http://fnagel.github.com/jQuery-Accessible-RIA/Tabs/mouseover.html . Is it possible with these things. Pages url should be change like as it now. I want to keep content in separate page on clicking on another tab it should open without refreshing i don't want to open tab content as a iframe I liked the idea of this http://jonplante.com/demo/tabs-1-2/?js=on but page url is not changing so other pages cannot be bookmarked

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  • Invoking external shell application through RubyCocoa

    - by Shyam
    Hi, How would I invoke an external application through the RubyCocoa bridge? I read something about NSTask, yet I have no idea how this should be translated in RubyCocoa. My goal is to have an IB_action to trigger a method which will run a terminal application with some parameters, i.e. ls -p $mydir, where mydir comes from an IB_outlet such as an Textfield. Any directions or help would be greatly appreciated!

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  • close other HTML window by javascript function

    - by lusey
    hello i need a popup window to appear to the user but without parent widow ! but this is impossible so i think that I may have to make the popup close the parent apter it appear, but how ? i tried this in the popup: <BODY align="center" valign="center" onload="javascript:window.opener='x';window.close();"> but it closed the popup window itself ! any idea to make the popup close its parent ?

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  • AI opponent car logic in car race game.

    - by ashok patidar
    hello i want to develop AI car(opponent) in car race game what should be my direction to develop them with less complexity because i don't have any idea. because the player car is moving on the scrolling track plz suggest me should i have to use relative motion or way point concept but that should also be change on the scrolling track (i.e. player car movement)

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  • Why has anybody ever used COBOL?

    - by sarzl
    I know: You and me hate COBOL. I took a look at a lot of code examples and it didn't take me long to know why everybody tries to avoid it. So I really have no idea: Why was COBOL ever used? I mean: Hey - there was Fortran before it, and Fortran looks like a jesus-language compared to COBOL. This isn't argumentative but historical as I'm young and didn't even know about COBOL before 4 months.

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