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• Creating a Web Wrapper for COM and OCX

  - by balexandre

  Hi guys, Today we have a windows application that, using an OCX, creates a web page (visible by a WebBrowser control in a small .NET WinForm application) and communicates through COM to the main application/client. (not relevant but this is Pascal) I'm currently responsible to re create this application in a web environment so we can have the same functionality shared through Web as the user can see the same in a Web Browser. The Windows application has almost 4 years on it and I need to re create everything from scratch, and all the bugs/features find in the future in the Windows Application I have to re create them again in the Web... Ohh well, you can see where this will end. I was thinking... is there any way I can create a Wrapper, even using 3rd party commercial objects, to: Communicate with the COM Object Can expose the content of the OCX (this in my most confortable language, ASP.NET C#, but other are welcome) I was thinking out loud, can this be accomplish with a Java Applet? Any ideas or any point to the right road will be appreciated.

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• Contracts vs Exceptions

  - by devoured elysium

  Let's assume I have the following code: public class MainClass { public static void main(String[] args) { System.out.println(sumNumbers(10, 10)); } //@requires a >= 10; //@ensures \result < 0; public static int sumNumbers(int a, int b) { return a+b; } } I can make 2 things here: Use Code Contracts (in this case, what is in comments). When sumNumbers is run and a < 10, it will throw immediatly an exception (although it doesn't seem to be very descriptive): Exception in thread "main" org.jmlspecs.jmlrac.runtime.JMLInternalNormalPostconditionError: by method MainClass.sumNumbers at MainClass.sumNumbers(MainClass.java:500) at MainClass.internal$main(MainClass.java:9) at MainClass.main(MainClass.java:286) or... Throw an exception. The exception can be as descriptive as I want. I'd also to check in the end of the function to see whenever the post conditions are true or not. Which would you use here and why?

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• Circular Dependency Solution

  - by gfoley

  Our current project has ran into a circular dependency issue. Our business logic assembly is using classes and static methods from our SharedLibrary assembly. The SharedLibrary contains a whole bunch of helper functions, such as a SQL Reader class, Enumerators, Global Variables, Error Handling, Logging and Validation. The SharedLibrary needs access to the Business objects, but the Business objects need access to SharedLibrary. The old developers solved this obvious code smell by replicating the functionality of the business objects in the shared library (very anti-DRY). I've spent a day now trying to read about my options to solve this but i'm hitting a dead end. I'm open to the idea of architecture redesign, but only as a last resort. So how can i have a Shared Helper Library which can access the business objects, with the business objects still accessing the Shared Helper Library?

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• Margin animate problem with Monitor display settings

  - by Jake

  I have an issue with an animation on a webpage. I have this div with text inside of it that I set the margin using css and when the page is loaded I use jquery to animate the div to a certain part of the page. The problem is it works with my concrete pixel settings, but if I change the properties of the monitor display settings in screen resolution(pixels), the div does not animate to the appropriate spot and it doesn't even start off at the appropriate spot from the css. Sample code: #div{ position:absolute; top:20px; left:50px } $("#div").animate({marginLeft: "250px"},2000); Is there a way to have the settings of the animation margin end at the approriate position no matter what the screen resolution is?

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• Videoconference using Flash and SIP

  - by Júlio Santos

  The front-end will be Flash, to run in a browser and have access to the camera. I must use SIP to control the sessions. How could I do this? Will a Red5 server and a MjSip sever do the trick? As in i'd use MjSip to setup the session and warn users about calls, and Red5 to stream the video and audio? Any suggestions? Note: only 1-on-1 conference is required.

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• Django Haystack exact filtering

  - by blackrobot

  I have a haystack search which has the following SearchIndex: class GrantIndex(indexes.SearchIndex): """ This provides the search index for the Grant application. """ text = indexes.CharField(document=True, use_template=True) year = indexes.IntegerField(model_attr='year__year') date = indexes.DateField(model_attr='date') program = indexes.CharField(model_attr='program__area') grantee = indexes.CharField(model_attr='grantee') amount = indexes.IntegerField(model_attr='amount') site.register(Grant, GrantIndex) If I want to search filtering out any programs that ARE NOT 'Health', I run the following query: from haystack.query import SearchQuerySet sqs = SearchQuerySet() sqs = sqs.filter(program='Health') Unfortunately, this also produces objects from the program 'Health\Other' and 'Health\Cardiovascular'. How do I stop the search from allowing those other programs in? I run Ubuntu 9.10 with Xapian as my search back-end.

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• Are there any syntax errors in the code snippet here?

  - by Mask

  typedef union YYSTYPE { int64_t iConst; // constant value float fConst; // constant value int iAttrLocator; // attribute locator (rowitem for int/float; offset+size for bits) int iFunc; // function id int iNode; // node index } YYSTYPE; It looks valid to me,but the cdt reports the following for the line int64_t iConst;: Multiple markers at this line: - syntax error before "int64_t" - no semicolon at the end of structure or union There are two files that defines int64_t,one is within the project itself(sphinxstd.h),the other is the MinGW/include/stdint.h,is it caused by this conflict?

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• Scite Lua - escaping right bracket in regex?

  - by ~sd-imi

  Hi all, Bumped into a somewhat weird problem... I want to turn the string: a\left(b_{d}\right) into a \left( b_{d} \right) in Scite using a Lua script. So, I made the following Lua script for Scite: function SpaceTexEquations() editor:BeginUndoAction() local sel = editor:GetSelText() local cln3 = string.gsub(sel, "\\left(", " \\left( ") local cln4 = string.gsub(cln3, "\\right)", " \\right) ") editor:ReplaceSel(cln4) editor:EndUndoAction() end The cln3 line works fine, however, cln4 crashes with: /home/user/sciteLuaFunctions.lua:49: invalid pattern capture >Lua: error occurred while processing command I think this is because bracket characters () are reserved characters in Lua; but then, how come the cln3 line works without escaping? By the way I also tried: -- using backslash \ as escape char: local cln4 = string.gsub(cln3, "\\right\)", " \\right) ") -- crashes all the same -- using percentage sign % as escape chare local cln4 = string.gsub(cln3, "\\right%)", " \\right) ") -- does not crash, but does not match either Could anyone tell me what would be the correct way to do this? Thanks, Cheers!

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• cmake add_library at a custom location

  - by celil

  I need to build a library that is to be placed at a custom location stored in the variable CUSTOM_OUTDIR. Currently, I am using the following code to make sure that the library is copied to its proper location. ADD_LIBRARY(example MODULE example.c) GET_TARGET_PROPERTY(FILEPATH example LOCATION) ADD_CUSTOM_COMMAND( TARGET example POST_BUILD COMMAND ${CMAKE_COMMAND} ARGS -E copy ${FILEPATH} ${CUSTOM_OUTDIR} ) However, this is not a good solution as the copying is done post_build, and I end up with two copies of the library. Is there a way to setup CMAKE_BINARY_DIR just for the example library so that only one copy of it is kept in the proper location?

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• How to transfer SQLite db to web server

  - by Shane

  Hi, I have an application that creates an SQLite database and saves information to it over the course of a day. At the end of the day i want to export this database to a web server. Could anyone point me in the right direction for this? Should I use httppost or put. I have researched this myself online but there seems to be so many different ways to explore. The server side does not exist yet either. I have access to an apache server so i am hoping to use that. Could anyone advise me the best/most simple way to do this? Thanks

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• Class Type Expected error on TableAdapter constructor

  - by Chris Franz

  I am using Delphi Prism to connect to an Advantage Database Server. I created a connection using the server explorer to the database. I added a dataset object to my project and added a table to the dataset. Everything works fine in the IDE, however, I get an error in the generated designer code on the table adapter constructor. The error is: (PE26) Class type expected. Here is the generated code: { Presidents.PresidentsTableAdapters.USPRESIDENTSTableAdapter } constructor Presidents.PresidentsTableAdapters.USPRESIDENTSTableAdapter; begin self.ClearBeforeFill := true; end;

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• What open source database platform is most easily transferred from my personal machine into a window

  - by Tom

  I would like eventual interaction with MS Dynamics SL and/or MindTouch Core (running on WMware) for eventual intranet and/or internet display. I guess I am asking for front and back end recommendations for a database I am constructing, but since this is my first major project I would greatly appreciate any help and advice. I would also love an opportunity to learn a new language so the code base could be in any language. I do have a few more related questions for discussion; What is the viability of using Google hosting to provide the service to the public for free? Should I implement plone or another CMS if I have a large amount of output? Is there a structuring questionnaire or standards publication I could reference? Does UML diagramming provide additional options for portability? Thank you.

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• How to refresh DataGrid and DropDown on main page after hiding modal popup

  - by James

  Hi, I am adding records to a database from a modal popup. After hiding the modal popup, the page has not been refreshed even though I have Rebound the controls. I have reviewed a few postings on the web about this but the solution still evades me. I have attached my code after removing some of the extra detail... It seems I need to cause a postback but I don't know what needs to be changed. Some posts have talked about the extender being misplaced. Anyway, thank you James <asp:Content ID="Content1" ContentPlaceHolderID="Head" Runat="Server"> <div class="divBorder"> <asp:DataGrid id="dgrSessionFolders" runat="server" BorderWidth="2px" BorderStyle="Solid" BorderColor="#C0C0FF" Font-Names="Arial" Font-Bold="True" Font-Size="8pt" GridLines="Horizontal" AutoGenerateColumns="False" PageSize="9999" AllowPaging="False" OnItemCommand="dgrSessionFolders_Command" OnItemDataBound="CheckSessionFolderStatus" HorizontalAlign="Left" ForeColor="Blue" ShowFooter="True" CellPadding="2" OnSortCommand="dgrSessionFolders_Sort" AllowSorting="True"> </asp:DataGrid> </div> &nbsp;&nbsp;&nbsp; <asp:Label ID="Errormsg" runat="server" ForeColor="#CC0000"></asp:Label> <asp:UpdatePanel ID="UpdatePanel1" runat="server" RenderMode="Inline" ChildrenAsTriggers="false" UpdateMode="Conditional"> <Triggers> <asp:AsyncPostBackTrigger ControlID="btnEditTopic" /> <asp:AsyncPostBackTrigger ControlID="btnAdd" /> <asp:AsyncPostBackTrigger ControlID="btnUpdate" /> <asp:AsyncPostBackTrigger ControlID="btnDelete" /> <asp:AsyncPostBackTrigger ControlID="btnClear" /> <asp:AsyncPostBackTrigger ControlID="btnAddTopic" /> <asp:AsyncPostBackTrigger ControlID="btnUpdateTopic" /> <asp:AsyncPostBackTrigger ControlID="btnDeleteTopic" /> </Triggers> <ContentTemplate> <asp:panel id="pnl" runat="server" HorizontalAlign="Center" Height="48px" Width="100%" > &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <asp:ImageButton ID="btnEditTopic" runat="server" AlternateText="Edit Topic" ImageUrl="~/App_Themes/Common/images/BtnEditTopic.jpg" Height="28px"> </asp:ImageButton> <cc1:ModalPopupExtender ID="btnEditTopic_ModalPopupExtender" runat="server" BackgroundCssClass="modalBackground" DropShadow="true" Enabled="true" PopupControlID="pnlEditTopic" TargetControlID="btnEditTopicHidden" CancelControlID="btnEditTopicClose"> </cc1:ModalPopupExtender> <asp:ImageButton ID="btnAdd" runat="server" AlternateText="Add Folder" ImageUrl="~/App_Themes/Common/images/BtnAddFolder.jpg" Height="28px"> </asp:ImageButton> <asp:ImageButton ID="btnUpdate" runat="server" AlternateText="Update Folder" ImageUrl="~/App_Themes/Common/images/BtnUpdateFolder.jpg" Height="28px"> </asp:ImageButton> <asp:ImageButton ID="btnDelete" runat="server" AlternateText="Delete Folder" ImageUrl="~/App_Themes/Common/images/BtnDeleteFolder.jpg" Height="28px"> </asp:ImageButton> <asp:ImageButton ID="BtnClear" runat="server" AlternateText="Clear Screen Input Fields" ImageUrl="~/App_Themes/Common/images/BtnAddMode.jpg" Height="28px"> </asp:ImageButton> <asp:Button ID="btnEditTopicHidden" runat="server" Enabled="false" Text="" Style="visibility: hidden" /> </asp:panel> <asp:Panel ID="pnlEditTopic" runat="server" CssClass="modalPopupEditTopic" Style="display: none;" > <table cellspacing="0" class="borderTable0" width="100%" style=""> <tr> <td colspan="10" class="Subhdr" align="center" style="width:100%"> <asp:label id="lblTopicScreenHdr" Cssclass="ScreenHdr" runat="server">Topic Maintenance</asp:label> </td> </tr> <tr> <td colspan="6"> <asp:Label ID="TopicPopErrorMsg" runat="server" ForeColor="#CC0000">&nbsp;</asp:Label> </td> </tr> <tr style="height:4px"> <td colspan="6" align="center"> <asp:ImageButton ID="btnAddTopic" runat="server" AlternateText="Add Topic" ImageUrl="~/App_Themes/Common/images/BtnApply.jpg" Height="28px"> </asp:ImageButton> <asp:ImageButton ID="btnUpdateTopic" runat="server" AlternateText="Update Topic" ImageUrl="~/App_Themes/Common/images/BtnApply.jpg" Height="28px"> </asp:ImageButton> <asp:ImageButton ID="btnDeleteTopic" runat="server" AlternateText="Delete Topic" ImageUrl="~/App_Themes/Common/images/BtnDelete.jpg" Height="28px"> </asp:ImageButton> <asp:ImageButton ID="btnEditTopicClose" runat="server" AlternateText="Close Edit Topic Popup" ImageUrl="~/App_Themes/Common/images/BtnCancel.jpg" Height="28px"> </asp:ImageButton> </td> </tr> </table> </asp:Panel> </ContentTemplate> </asp:UpdatePanel> Private Sub btnAddTopic_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnAddTopic.Click 'Add the Topic table entry AddTopic() 'Display an informational message Errormsg.Text = "The Topic has been successfully added, thank you! " Errormsg.ForeColor = Drawing.Color.Blue 'Rebind the Topic Drop Down and set to added Topic ddlSessionTopic.DataBind() ddlSessionTopic.SelectedValue = drTopic("TOPC_ID") 'Rebind the Session Folders grid RebindGrid() 'Hide the Topic Popup btnEditTopic_ModalPopupExtender.Hide() End Sub Private Sub RebindGrid() cnnSQL = New SqlConnection(strConnection) cmdSQL = New SqlCommand("GetSessionFoldersForGrid", cnnSQL) cmdSQL.CommandType = CommandType.StoredProcedure cmdSQL.Parameters.Clear() cnnSQL.Open() dadSQL = New SqlDataAdapter(cmdSQL) dadSQL.SelectCommand = cmdSQL dadSQL.Fill(dtSessionFolderGrid) cnnSQL.Close() dvSessionFolderGrid = dtSessionFolderGrid.DefaultView dvSessionFolderGrid.Sort = String.Format("{0} {1}{2}", so.Sortfield, so.SortDirection, so.SortSuffix) dgrSessionFolders.DataSource = dvSessionFolderGrid dgrSessionFolders.DataBind() End Sub

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• Can a CouchDB document update handler get an update conflict?

  - by jhs

  How likely is a revision conflict when using an update handler? Should I concern myself with conflict-handling code when writing a robust update function? As described in Document Update Handlers, CouchDB 0.10 and later allows on-demand server-side document modification. Update handlers can process non-JSON formats; but the other major features are these: An HTTP front-end to arbitrarily complex document modification code Similar code needn't be written for all possible clients—a DRY architecture Execution is faster and less likely to hit a revision conflict I am unclear about the third point. Executing locally, the update handler will run much faster and with lower latency. But in situations with high contention, that does not guarantee a successful update. Or does the update handler guarantee a successful update?

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• ShoutCast over SSL

  - by Honus Wagner

  So I've gone ahead and set up my ShoutCast server DNAS and set my DSP in Winamp on my host computer. The server listens on port 8000, so per some instructions I installed an output plugin for winamp (Shoutcast DSP) and used 8000 and the password to connect. Server accepts the connection. Now, what the heck do I do now? My host computer is SSL secured and the DNAS server is installed within the secure web directory (if that matters). My desired end result is that I want to listen to my ShoutCast setup at home (host computer) from any computer. I try browsing to my ip address and port 8000 (without using HTTPS) and it comes back with nothing. If I browse with HTTPS://my.server.com:8000, I get Error code: ssl_error_rx_record_too_long) Have I completely missed something, or am I just a total moron? Thanks.

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• How to scroll to the new added item in a ListView

  - by Thomas

  Hi all My application show a ListView with a button which allow user to add an element. When the user clicks on this button, another Activity is started to allow user to populate the new element. When the add is finished, we return to the previous Activity with the ListView and I would like to scroll to the new element. Note that this element is not necessarily at the end of the ListView because there is an "order by" when I retrieve the datas from the database. I know I need the cursor position of the new element to make the ListView scrool to it, but the only info I have about this element is its id, so how to convert this id to cursor position ? Do I have to loop on the cursor to find the position ? Thanks in advance

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• Sorting list of URLs by length in Jython

  - by Eef

  Hi, I am writing a Jython script to sort a list of URLs. I have a list that looks like this: http://www.domain.com/folder1/folder2/|,1 http://www.domain.com/folder1/|,1 http://www.domain.com/folder1/folder2/folder3/|,1 http://www.domain.com/folder1/|,1 http://www.domain.com/folder1/folder2/|,1 http://www.domain.com/folder1/folder2/|,1 http://www.domain.com/folder1/folder2/folder3/|,1 The pipe and the comma separates the path from the amount of files that are under that path. Is it possible some how use Jython to order the URLs by length, so it would end up look like the below list: http://www.domain.com/folder1/|,1 http://www.domain.com/folder1/|,1 http://www.domain.com/folder1/folder2/|,1 http://www.domain.com/folder1/folder2/|,1 http://www.domain.com/folder1/folder2/|,1 http://www.domain.com/folder1/folder2/folder3/|,1 http://www.domain.com/folder1/folder2/folder3/|,1 Hope you guys get what I mean, any help would be appreciated. Cheers

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• Why does headless PDE Build omit directories I've specified in build.properties's bin.includes?

  - by Woody Zenfell III

  One of my Eclipse plug-ins (OSGi bundles) is supposed to contain a directory (Database Elements) of .sql files. My build.properties shows: bin.includes = META-INF/,\ .,\ Database Elements/ (...which looks right to me.) When I build and run from within my interactive Eclipse IDE, everything works fine: calls to Bundle.getEntry(String) and Bundle.findEntries(String, String, bool) return valid URL objects; my tests are happy; my code is happy. When I build via headless ant script (using PDE Build), those same calls end up returning null. My tests break; my code breaks. I find that Database Elements is quietly but simply missing from my plug-in's JAR package. (META-INF and the built classes still make it in there fine.) I scoured the build log (even eventually invoking ant -verbose on the relevant portion of the build script) but saw no mention of anything helpful. What gives?

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• SSRS 2008 export to MS Word A4 issue

  - by Knut Ivar

  I have a simple report maid in bids 2008 and deployed to a ssrs2008 server. it has this report properties: page unit : Centimeters page size : Orientasion: Landscape paper sise: A4 width : 29,7cm Height: 21cm all margins ar 2,5cm Showing and printing this report works fine making it perfekt on a A4 paper. exporting to difrent formats works also grate exept the format i made the report for. The word files ither end up whit an letter paper size or a A3 size. Do enyone have a solution for this problem?

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• Perl When is using AUTOLOAD OK?

  - by Robert S. Barnes

  In "Perl Best Practices" the very first line in the section on AUTOLOAD is: Don't use AUTOLOAD However all the cases he describes are dealing with OO or Modules. I have a stand alone script in which some command line switches control which versions of particular functions get defined. Now I know I could just take the conditionals and the evals and stick them naked at the top of my file before everything else, but I find it convenient and cleaner to put them in AUTOLOAD at the end of the file. Is this bad practice / style? If you think so why, and is there a another way to do it?

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• how to get the http header in asynchronous request mode using ASIHHTTP

  - by user262325

  Hello everyone I hope to display the download file size by reading http header. I know there is way do this: ASIHTTPRequest request = [ASIHTTPRequest requestWithURL:url]; [request startSynchronous]; NSString poweredBy = [[request responseHeaders] objectForKey:@"X-Powered-By"]; NSString *contentType = [[request responseHeaders] objectForKey:@"Content-Type"]; but this is Synchronous mode, in Asynchronous mode it can be done as below: (void)requestFinished:(ASIHTTPRequest *)request { unsigned long long contentLength = [request contentLength]; } but 'requestFinished' is at the end of download. Is there an event to get the http header info at the beginning of download? Thank interdev

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• How many repositories should I use to maintain my scripts under version control?

  - by romandas

  I mainly code small programs for myself, but recently, I've been starting to code for my peers on my team. To that end, I've started using a Mercurial repository to maintain my code in some form of version control (specifically, Tortoise-Hg on Windows). I have many small scripts, each in their own directory, all under one repository. However, while reading Joel's Hg Tutorial, I tried cloning a directory for one of my bigger scripts to create a "stable" version and found I couldn't do it because the directory wasn't itself a repository. So, I assume (and please correct me if I'm mistaken) that in order to use cloning properly, I'd have to create a repository for each script/directory. But.. would that be a "good idea" or a future maintenance nightmare waiting to happen? Succinctly, do I keep all my (unrelated) scripts in one repository, or should I create a repository for each? Or some unknown third option?

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• How to check a SQL database table to see if a record exists

  - by Anthony

  I have a SQL database that creates a record for every document uploaded by the user to the server. I want to check this table before a user uploads a document to ensure they don't upload a file with name that already exists. I know how to make the connection and make the SqlCommand to query the table for an existing record. But I don't know how to check the record count from the sqlCommand I made. Does that make sense? Using myConnectionCheck As New SqlConnection(myConnectionStringCheck) Dim myCommandCheck As New SqlCommand() myCommandCheck.Connection = myConnectionCheck myCommandCheck.CommandText = "SELECT * FROM Req_Docs WHERE Doc_Name =" & DocName myConnectionCheck.Open() myCommandCheck.ExecuteNonQuery() End Using Thanks in advance, Anthony

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• A regex to match a comma that isn't surrounded by quotes.

  - by Rayne

  I'm using Clojure, so this is in the context of Java regexes. Here is an example string: "{:a "ab,cd, efg", :b "ab,def, egf,", :c "Conjecture"}" The important bits are the commas after each string. I'd like to be able to replace them with newline characters with Java's replaceAll method. A regex that will match any comma that is not surrounded by quotes will do. If I'm not coming across well, please ask and I'll be happily to clarify anything. edit: sorry for the confusion in the title. I haven't been awake very long. String: {:a "ab, cd efg",} <-- In this example, the comma at the end would be matched, but the ones inside the quote would not.

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• What is the difference between #ifdef __IPHONE_3.2 and #if __IPHONE_3.2?

  - by Jonathan

  Hi, I have an iphone app that needs to work for 3.1.3 for the iPhone and 3.2 for the iPad. It is an iPhone app that I want to work on the iPad. The main difference is the MPMoviePlayerController which introduces/and deprecates lots of things in 3.2. Since, the iPhone OS only goes up to 3.1.3 and the iPad is on 3.2, I need to seperate my code so it only compiles the required code for the respective OS. I can't use [[UIDevice currentDevice] model] because I end up with deprecated warnings on the 3.1.3 code. Also, UIUserInterfaceIdiomPad is new in 3.2 so it doesn't work well with 3.1.3... So, I decided to use this, which only compiles what is necessary for the particular OS: #if __IPHONE _3_2 //do 3.2 iPad stuff #else //do 3.1.3 iPhone/iPod Touch stuff #endif My question is... What is the difference between these? #ifdef __IPHONE_3_2 and #if __IPHONE_3_2 Thank you

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