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• Video editing language

  - by wvd

  Hi folks, My next project will be all about language tools, parsing and such. Because of that reason I've decided to write a simple language which can be used for video editing. So instead of those desktop applications (Sony vegas, Adobe Premiere, ..) it's basically a language where you define the effects and all and it will generate a video for you. Since I've got no experience in this kind of business I need some help. The goal of the project is to create a simple language which is able to do some basic things (such as text fading in, etc). I am looking for articles/projects/blogs/whatever related with this which could help me writing this language. (Note that I don't need articles about language parsing since I'm pretty familar with that, just the video editing part). Thanks, William v. Doorn

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• Creating a standalone ASP.NET MVC application for Windows XP

  - by Robert Harvey

  Is there a way to create an installable (ideally XCopy installable) version of an ASP.NET MVC application that will run in a standalone fashion on a Windows XP machine? I don't mind installing SQL Server Express for this purpose, so I guess the question boils down to this: Can the Cassini web server that comes with Visual Studio 2008 be bundled with the application? Or are there other options? NOTE: The installation is for demo purposes only, so there are no licensing problems. Also, I am suggesting Cassini because I don't know of a way to install IIS7 on Windows XP. I can't do major hackage on the registry to get this to work.

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• Documenting software architectures that serve multiple markets

  - by wsb3383

  Hello, I'm the lead developer/architect wanna-be on a J2EE based system/platform at work that serves both real estate and automotive markets. The systems consists of a set of database back ends, web services and two web clients. The platform ends up serving 3 different products: an internal vehicle inventory system for use by company analysts, an external dealer management system (commercialized product), and a real estate inventory system (commercialized). In other words, it follows a software product lines approach....My question is, I'm having trouble communicating to other technical and some business people how this platform architecture is one system that serves multiple markets (by leveraging some existing assets combined with minor modifications)....Is there a formal modeling language that can simplify communicating this intent? I should note that I haven't read much about software product lines, so I'm not sure if there is actually a standard modeling approach to SPL that i'm not aware of....I'm also interested in knowing if there are special configuration management practices for such systems. thanks,

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• SQL Server Error: maximum number of prefixes. The maximum is 3.

  - by Ian Boyd

  Trying to run a cross-server update: UPDATE cmslive.CMSFintrac.dbo.lsipos SET PostHistorySequencenNmber = ( SELECT TransactionNumber FROM Transactions WHERE Transactions.TransactionDate = cmslive.CMSFintrac.dbo.lsipos.TransactionDate) Gives the error: Server: Msg 117, Level 15, State 2, Line 5 The number name 'cmslive.CMSFintrac.dbo.lsipos' contains more than the maximum number of prefixes. The maximum is 3. What gives? Note: Rearranging the query into a less readable join form: UPDATE cmslive.CMSFintrac.dbo.lsipos SET PostHistorySequenceNumber = B.TransactionNumber FROM cmslive.CMSFintrac.dbo.lsipos A INNER JOIN Transactions B ON A.TransactionDate = B.TransactionDate does not give an error.

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• "Personal" method in ruby

  - by steve gooberman-hill

  I'm looking for a way of making a method "personal" - note NOT PRIVATE to a class here is an example - by "personal" I mean the behaviour of method "foo" class A def foo "foo" end end class B < A def foo "bar" end end class C < B end a=A.new; b=B.new;c=C.new I'm looking for a way of producing the following behaviour a.foo #=> "foo" b.foo #=> "bar" c.foo #=> "foo" (ultimate base class method called) Any ideas? Thanks Steve

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• Java Programming Homework

  - by user1427476

  Write a program to read in a file containing the names of the employ of a company and store them in an array of Strings named Employ []. Read another file containing the Salaries of each employ written in the same order and store them in another array of integers named salary[] (contents of both files are shown below). Finally create a file stating for example. Mr. XYZ receive $75,500.00 per year (Note that salary is stored as integer but displayed here as double with a comma separating thousands. This formatting needs to be done using DecimalFormat Class)

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• Java CRTP: Works for container but not for methods?

  - by Daniel

  I have a baseclass with a protected static ArrayList. I want to have a seperate ArrayList for each kind of subclass that extends this baseclass. This is when I applied CRTP: public class BaseExample<T> { protected static ArrayList<Integer> data = new ArrayList<Integer>(); } This works just fine. However, when I try to implement the following static method in the same base class, it doesn't adhere to CRTP: public static void clear() { data.clear(); } For example: class SubExample extends BaseExample<SubExample> { // insertion methods accessing 'data' field // these work fine :) } SubExample.clear(); // does not seem to clear data container Do I need to somehow explicitly specify T in my baseclass clear method? Note: These are all pure static classes.

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• python regex for repeating string

  - by Lars Nordin

  I am wanting to verify and then parse this string (in quotes): string = "start: c12354, c3456, 34526;" //Note that some codes begin with 'c' I would like to verify that the string starts with 'start:' and ends with ';' Afterward, I would like to have a regex parse out the strings. I tried the following python re code: regx = r"V1 OIDs: (c?[0-9]+,?)+;" reg = re.compile(regx) matched = reg.search(string) print ' matched.groups()', matched.groups() I have tried different variations but I can either get the first or the last code but not a list of all three. Or should I abandon using a regex?

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• Multiple webservice calls

  - by Mujtaba Hassan

  I have a webservice (ASP.NET) deployed on a webfarm. A client application consumes it on daily basis. The problem is that some of its calls are duplicated (with difference of milliseconds). For example I have a function Foo(string a,string b). The client app calls this webmethod as Foo('test1','test2') once but my log shows that it is being called twice or sometimes 3 or 4 times randomly. Is this anything wrong with the webfarm or the code? Note that the webmethod has simple straighfarward insert and update statements.

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• Why do C++ streams use char instead of unsigned char?

  - by Johannes Schaub - litb

  I've always wondered why the C++ Standard library has instantiated basic_[io]stream and all its variants using the char type instead of the unsigned char type. char means (depending on whether it is signed or not) you can have overflow and underflow for operations like get(), which will lead to implementation-defined value of the variables involved. Another example is when you want to output a byte, unformatted, to an ostream using its put function. Any ideas? Note: I'm still not really convinced. So if you know the definitive answer, you can still post it indeed.

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• Service for converting SWFs with ActionScript to Video (MPEG, AVI, or MOV)

  - by pcooley

  The SWF files generated by our application are a basic template that reference external resources (images, and textual data) that actionscript uses to fuel the display. Thus the SWF is responsible for the creative layout of the screen the flash player. It is the results of this actions script, images, and textual data that need to be converted to a video format. Is anyone familiar with an online service that would be able to convert such .swf files that our site generates to a video format (say .avi, .mpeg, .mov). Or an application? Note: A more common case might be the conversion of an embedded FLV to a video, but this is not our need

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• How to export data which are mapped to enumerations

  - by Joshua

  I have a set of data which needs to be imported from a excel sheet, lets take the simplest example. Note: the data might eventually support uploading any locale. e.g. assuming one of the fields denoting a user is gender mapped to an enumeration and stored in the database as 0 for male and 1 for female. 0 and 1 being short values. If I have to import the values I cannot expect the user to punch in numbers (since they are not intuitive and is cumbersome when the enumerations are bigger), what would be the correct way to map to enumerations. Should we ask them to provide a string value in these cases (e.g. male or female) and provide the transformation to a enum in our code by wring a method public static Gender Gender.fromString(String value)

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• Is it possible, with simple F# pattern matching transformations, to ignore unmatched values without

  - by Phobis

  So, I previously asked this question: http://stackoverflow.com/questions/2820234/can-someone-help-me-compare-using-f-over-c-in-this-specific-example-ip-address I was looking at the posted code and I was wondering if this code could be written without it producing a warning: let [|a;b;c;d|] = s.Split [|'.'|] IP(parseOrParts a, parseOrParts b, parseOrParts c, parseOrParts d) Is it possible to do something for the match _ pattern ot ignore? Without adding in something like Active Patterns? i want to keep the code as simple as possible... can I do this without drastically changing this code? NOTE: Warning is as follows Warning Incomplete pattern matches on this expression. For example, the value '[|_; _; _; _; _|]' may indicate a case not covered by the pattern(s).

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• Excel - referenced values via OleDB from .Net client

  - by ho

  I'm trying to read an Excel file (.xls, I think Excel 2003 compatible) via OleDB, but it fails to get the values for referenced fields. This is my current test code (please note, this is just part of the class): Private m_conn As OleDbConnection Public Sub New(ByVal fileName As String) Dim connString As String = String.Format("Provider=Microsoft.Jet.OLEDB.4.0;Data Source={0};Extended Properties=Excel 8.0;", fileName) m_conn = New OleDbConnection(connString) m_conn.Open() End Sub Public Sub GetSheet(ByVal sheet As String) Dim query As String = String.Format("SELECT * FROM [{0}]", sheet) Using cmd As OleDbCommand = m_conn.CreateCommand() cmd.CommandText = query Dim ds As New DataSet() Dim a As New OleDbDataAdapter(cmd) Using rdr As OleDbDataReader = cmd.ExecuteReader() While rdr.Read() Debug.WriteLine(rdr.Item(0).ToString()) End While End Using End Using End Sub But if the value is a reference (something like =+'MySheetName'!K37), I just get a DBNull from the call to rdr.Item(0). I can get around this by automating Excel instead, but would prefer not to have to use Excel automation so wondering if anyone knows how to do it.

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• How do I locate instances of <CR><LF><LF> in a mysql longtext field

  - by Ilane

  I would like to query my table for how many rows contain one or more instances of <CR><LF><LF>. I can't figure out the correct syntax. I would try LIKE '%<CR><LF><LF>%', but I don't know how to specify these special characters. I did try where mydata REGEXP '%[.CR.][.LF.][.LF.]%', and that didn't get a syntax error but neither did it return any rows. So, I realized I need a way to insert the test data as well! Note: I am using mysql 5.0.

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• Updating rows using "in" operator in "where" clause

  - by doublep

  Hi. I stumbled upon SQL behavior I don't understand. I needed to update several rows in a table at once; started with just finding them: SELECT * FROM some_table WHERE field1 IN (SELECT ...) This returned a selection of about 60 rows. Now I was pretty confident I got the subquery right, so I modified the first part only: UPDATE some_table SET field2 = some_value WHERE field1 IN (SELECT ...) In other words, this was exactly as the first query after the WHERE. However, it resulted in 0 rows updated, whereas I would expect those 60. Note that the statement above would change field2, i.e. I verified that some_value was not present in the selected rows. The subquery was a modestly complicated SQL piece with 2 (different) tables, 1 view, joins and its own WHERE clause. In case this matters, it happened with Oracle Database 10g. So, the question is, why UPDATE didn't touch the rows returned by SELECT?

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• XML and .NET: How to replace specific node with many other ones loaded from raw xml data

  - by Entrase

  Let's suppose we have an element like this one in the main xml file: <group name="gr1" filename="groups/gr1.xml"/>. The second file gr1.xml contains something like this: <item name="i1">Item one</item> <item name="i2">Item two</item> <item name="i3">Item three</item> Note that there is no XML declaration in gr1.xml, just plain items without single parent node. So… Which is the best way to replace <group/> with its <item/>s? I have already tried some things like manual enclosing of gr1.xml content into a single node with XML declaration and loading it into XmlDocument, but it doesn't look like a good solution.

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• Is it hard problem?

  - by Lukasz Lew

  I can't solve it: You are given 8 integers: A, B, C representing a line on a plane with equation A*x + B*y = C a, b, c representing another line x, y representing a point on a plane The two lines are not parallel therefore divide plane into 4 pieces. Point (x, y) lies inside of one these pieces. Problem: Write a fast algorithm that will find a point with integer coordinates in the same piece as (x,y) that is closest to the cross point of the two given lines. Note: This is not a homework, this is old Euler-type task that I have absolutely no idea how to approach.

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• Correct way to close database connection in event of exception.

  - by lowlyintern

  /I have some code of of the following form. Does this mean the connection is left open if there is an exception? Note, I am using a Microsoft SQL compact edition database./ try { SqlCeConnection conn = new SqlCeConnection(ConnectionString); conn.Open(); using (SqlCeCommand cmd = new SqlCeCommand("SELECT stuff FROM SomeTable", conn)) { // do some stuff } conn.Close(); } catch (Exception ex) { ExceptionManager.HandleException(ex); } /*Surely a better way would be to declare a connection object before the try, establish a connection inside the try block and close it in a finally block? */ SqlCeConnection conn = null; try { conn = new SqlCeConnection(ConnectionString); conn.Open(); using (SqlCeCommand cmd = new SqlCeCommand("SELECT stuff FROM SomeTable", conn)) { // do some stuff } } catch (Exception ex) { ExceptionManager.HandleException(ex); } finally { if( conn != null ) conn.Close(); }

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• ASP.NET single quotes are converted to &#39;

  - by Monty

  Note: Most probably this will be a double question, but since I haven't found a clear answer, I'm asking it anyway. In ASP.NET I'd like to add some JavaScript to the onclick event of a CheckBox. I've simplified the case to this: <asp:CheckBox ID="TestCheckBox" runat="server" onclick="alert('test');" Text="Test" /> The resulting HTML is as follows: <input id="MainContainer_TestCheckBox" type="checkbox" name="ctl00$MainContainer$TestCheckBox" onclick="alert(&#39;test&#39;);" /><label for="MainContainer_TestCheckBox">Test</label> What particularly bothers me is that a single quote 'automatically' gets converted into '&#39;'. If I omit the onclick in the markup and assign it in Page_Load, the exact same results show in the HTML. protected void Page_Load(object sender, EventArgs e) { this.TestCheckBox.Attributes["onclick"] = "alert('test');"; } Anyone got a clue about what's happening? Or how to fix/ avoid it?

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• RewriteRule help

  - by Camran

  I have successfully setup htaccess to do this: domain.com/ad.php?ad_id=bmw_m3_2498224 INTO: domain.com/ads/bmw_m3_2498224 However, I have a link on the page which makes the page submit to itself... The link saves the ad inside a cookie: domain.com/ad.php?ad_id=bmw_m3_2498224&save=1 // Note the 'save' variable I need to make this work on the rewritten rule also, so this link: domain.com/ads/bmw_m3_2498224/save will save the cookie... I have this so far which DOES NOT work for the save part: RewriteRule ^annons/([a-zA-Z0-9_]+)$ ad.php?ad_id=$1 [NC,L] How can I include another rule to accomplish what I want? Thanks

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• How do I trigger a closing animation for a WPF ContextMenu?

  - by Ashley Davis

  Does anyone know if it is possible to trigger an animation when a WPF ContextMenu closes? I have code that triggers an animation when the ContextMenu is opened. The animation makes the context menu fade into view. I also want an animation when the ContextMenu is closed that makes it fade out. The code that starts the opened fade-in animation looks something like this: var animation = new DoubleAnimation(); animation.From = 0; animation.To = 1; animation.Duration = TimeSpan.FromSeconds(0.2); animation.Freeze(); menu.BeginAnimation(ContextMenu.OpacityProperty, animation); The fade-in animation also runs on sub-menu items. Note that I also want to run other animations besides fade in and fade out. Eg I want the context menu to scale up from nothing so that it sort of 'bounces' into view.

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• Void in main and keeping Dos program from dying

  - by TimothyTech

  Alright, so im using bloodshed complier, first thing i should note is im using a 2001 edition C++ for the aboslute beginner, was there any changes to C++ since 2001 that would effect the validity of this book? i ask because i know php has php5 and now php6 but i havent seen any C++3. now for the reason i asked that, in this code it uses, void main (void) why would i want an arguement to be void? what does this do. But when i run the " void main (void) in my compiler it says that main must have a "int" before it. so i cant have "void" main (void); also, once the code runs through, as long as there isnt a "cin" the program closes. is this normal behavior, is there a better way to stop this besides making a cin at the end of my program.

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• How to convert List<int> to string[]?

  - by George Edison

  I need an easy way to convert a List<int> to a string array. I have: var the_list = new List<int>(); the_list.Add(1); the_list.Add(2); the_list.Add(3); string[] the_array = new string[the_list.Count]; for(var i = 0 ; i < the_array.Count; ++i) the_array[i] = the_list[i].ToString(); ...which looks to be very ugly to me. Is there an easier way? Note: I'm looking for an easier way - not necessarily a faster way.

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• Restart logging to a new file (Python)

  - by compie

  I'm using the following code to initialize logging in my application. logger = logging.getLogger() logger.setLevel(logging.DEBUG) # log to a file directory = '/reserved/DYPE/logfiles' now = datetime.now().strftime("%Y%m%d_%H%M%S") filename = os.path.join(directory, 'dype_%s.log' % now) file_handler = logging.FileHandler(filename) file_handler.setLevel(logging.DEBUG) formatter = logging.Formatter("%(asctime)s %(filename)s, %(lineno)d, %(funcName)s: %(message)s") file_handler.setFormatter(formatter) logger.addHandler(file_handler) # log to the console console_handler = logging.StreamHandler() level = logging.INFO console_handler.setLevel(level) logger.addHandler(console_handler) logging.debug('logging initialized') How can I close the current logging file and restart logging to a new file? Note: I don't want to use RotatingFileHandler, because I want full control over all the filenames and the moment of rotation.

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