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• What is the best way to join/merge two tables by column cell matching in Excel?

  - by blunders

  I've found this excel add-in to buy that appears to do what I need, but I'd rather have code that's open to use as I wish. While a GUI is nice, it's not required. In an attempt to make the question more clear, I'm adding some two sample "input" tables in tab delimited form, and the resulting output table: SAMPLE_INPUT_TABLE_01 NAME<tab>Location John<tab>US Mike<tab>CN Tom<tab>CA Sue<tab>RU SAMPLE_INPUT_TABLE_02 NAME<tab>Age John<tab>18 Mike<tab>36 Tom<tab>54 Mary<tab>18 SAMPLE_OUTPUT_TABLE_02 NAME<tab>Age<Location> John<tab>18<tab>US Mike<tab>36<tab>CN Tom<tab>54<tab>CA Sue<tab>""<tab>RU Mary<tab>18<tab>"" If it matters, I'm using Office 2010 on Windows 7.

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• Exceptions silently caught by Windows, how to handle manually?

  - by Mark Ingram

  We're having problems with Windows silently eating exceptions and allowing the application to continue running, when the exception is thrown inside the message pump. For example, we created a test MFC MDI application, and overrode OnDraw: void CTestView::OnDraw(CDC* /*pDC*/) { *(int*)0 = 0; // Crash CTestDoc* pDoc = GetDocument(); ASSERT_VALID(pDoc); if (!pDoc) return; // TODO: add draw code for native data here } You would expect a nasty error message when running the application, but you actually get nothing at all. The program appears to be running perfectly well, but if you check the output window you will see: First-chance exception at 0x13929384 in Test.exe: 0xC0000005: Access violation writing location 0x00000000. First-chance exception at 0x77c6ee42 in Test.exe: 0xC0150010: The activation context being deactivated is not active for the current thread of execution. I know why I'm receiving the application context exception, but why is it being handled silently? It means our applications could be suffering serious problems when in use, but we'll never know about it, because our users will never report any problems.

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• Is there an online tester for xPath selectors?

  - by alex

  I know there are some online regex evaluators.. very useful, matching in real time. They are like web applications of RegexBuddy. I was wondering if there is a similar thing for xPath selectors? I am just learning them and it would be valuable to me. Is there an online tester that allows you to input XML and then an xPath selector and match (live would be better, but I doubt someone has written a JavaScript interpreter?) them? Thanks

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• Change background color of disabled listbox in windows classic theme

  - by Mercury821

  I am developing a WPF application that must run using Windows Classic theme. The application creates a dialog box containing a ListBox. When the dialog box is shown, it must be disabled for 1s before accepting any input. I am accomplishing this with a style trigger, and it works. However, the ListBox shows a white background when it's disabled, which I can't seem to get rid of. When using the aero theme, the following style resource fixes the issue: <SolidColorBrush x:Key="{x:Static SystemColors.ControlBrushKey}" Color="Transparent"/> But when using Windows Classic theme, the white background reappears. How can i remedy the situation for Classic theme???

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• Recursion problem in C

  - by jake

  Hi there. I've been trying to solve this problem for a few days now but it seems I haven't grasped the concept of recursion,yet. I have to build a program in C (recursion is a must here but loops are allowed as well) which does the following: The user inputs 2 different strings.For example: String 1 - ABC String 2 - DE The program is supposed to print strings which are combined of the ones the user has entered. the rule is that the inner order of the letters in each string (1&2) must remain. That's the output for string1=ABC & string2=DE ": abcde abdce abdec adbce adbec adebc dabce dabec daebc deabc If anyone could give me a hand here, it would be great. Thanks guys.

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• Splitting a string according to a delimiter when elements in the string can contain the delimiter

  - by Vivin Paliath

  I have a string that looks like this: "#Text() #SomeMoreText() #TextThatContainsDelimiter(#blah) #SomethingElse()" I'd like to get back [#Text(), #SomeMoreText(), #TextThatContainsDelimiter(#blah), #SomethingElse()] One way I thought about doing this was to require that the # to be escaped into \#, which makes the input string: "#Text() #SomeMoreText() #TextThatContainsDelimiter(\#blah) #SomethingElse()" I can then split it using /[^\\]#/ which gives me: [#Text(), SomeMoreText, TextThatContainsDelimiter(\#blah), SomethingElse()] The first element will contain # but I can strip it out. However, is there a cleaner way to do this without having to escape the #, and which ensures that the first element will not contain a #? Basically I'd like it to split by # only if the # is not enclosed by parentheses. My hunch is that since the # is context-sensitive and and regular expressions are only suited for context-free strings, this may not be the right tool. If so, would I have to write a grammar for this and roll my own parser/lexer?

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• DateTime: Require the user to enter a time component

  - by Heinzi

  Checking if a user input is a valid date or a valid "date + time" is easy: .NET provides DateTime.TryParse (and, in addition, VB.NET provides IsDate). Now, I want to check if the user entered a date including a time component. So, when using a German locale, 31.12.2010 00:00 should be OK, but 31.12.2010 shouldn't. I know I could use DateTime.TryParseExact like this: Dim formats() As String = {"d.M.yyyy H:mm:ss", "dd.M.yyyy H:mm:ss", _ "d.MM.yyyy H:mm:ss", "d.MM.yyyy H:mm:ss", _ "d.M.yyyy H:mm", ...} Dim result = DateTime.TryParseExact(userInput, formats, _ Globalization.CultureInfo.CurrentCulture, ..., result) but then I would hard-code the German format of specifying dates (day dot month dot year), which is considered bad practice and will make trouble should we ever want to localize our application. In addition, formats would be quite a large list of all possible combinations (one digit, two digits, ...). Is there a more elegant solution?

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• Is there a default buffer length for 'sprintf' method?

  - by Isuru

  Hi, I used sprintf method to format data to a string which I want to write to a file, in C++ console application using VS 2008. The Input is a particular message, which has various variables and values (ex: Type 'int' and Value '10' / Type string and value "abc", etc.) When I send a two messages it works perfectly. But When I send more than two messages it gives a runtime error saying 0xC0000005: Access violation reading location 0xabababab. Why is this happening? Is it because the method 'sprintf' has a default buffer length? How can I overcome this problem?

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• Character Encoding problem?

  - by JasonS

  Hi, In my mysql database I have the following information in a page name field. ç,Ç,ö,Ö,ü,Ü,i,I,s,S,g,G If I do a phpmyadmin dump the above is exported. I am using a different php script and instead of the above I am getting this. "\303\247,\303\207,\303\266,\303\226,\303\274,\303\234,\304\261,\304\260,\305\237,\305\236,\304\237,\304\236" This is the snippet which is generating the output. $data_sql = "SELECT * FROM ".$table_name; $data_res = @mysql_query($data_sql); while($data_row = @mysql_fetch_array($data_res,MYSQL_NUM)) { print_r($data_row); } How can I modify this to make sure that the data is correct? Is some sort of php function required? Do I need to do something to the file? Any advice is much appreciated.

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• Are there any existing batch log file aggregation solutions?

  - by Mohan Gulati

  I wish to export from multiple nodes log files (in my case apache access and error logs) and aggregate that data in batch, as a scheduled job. I have seen multiple solutions that work with streaming data (i.e think scribe). I would like a tool that gives me the flexibility to define the destination. This requirement comes from the fact that I want to use HDFS as the destination. I have not been able to find a tool that supports this in batch. Before re-creating the wheel I wanted to ask the StackOverflow community for their input. If a solution exists already in python that would be even better.

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• Lucene.NET and searching on multiple fields with specific values...

  - by Kieron

  Hi, I've created an index with various bits of data for each document I've added, each document can differ in it field name. Later on, when I come to search the index I need to query it with exact field/ values - for example: FieldName1 = X AND FieldName2 = Y AND FieldName3 = Z What's the best way of constructing the following using Lucene .NET: What analyser is best to use for this exact match type? Upon retrieving a match, I only need one specific field to be returned (which I add to each document) - should this be the only one stored? Later on I'll need to support keyword searching (so a field can have a list of values and I'll need to do a partial match). The fields and values come from a Dictionary<string, string>. It's not user input, it's constructed from code. Thanks, Kieron

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• How to extract hhp file from a chm file

  - by Sam

  Hi, I have an A.chm file for my windows application which runs as expected. When I decompile it using HTML workshop I get set of html files, .hhc file, .hhk file. When I compile another file B.chm from these extracted files without changing any of the files.((I want to add more html contents to this file but looks like I am losing some information after decompiling)) The output file I get is 72K where as the original file was 75K. B.chm's contents look all file when viewed in the chm viewer but the behavior is lost when when used with the application. After reading around I found that if .hhp can be extracted from a .chm file then it can be re-constructed as it is without losing any mapping or aliases. Is that true? How can I extract .hhp file from a .chm file? Thanks, Sam

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• UnitTest++ creates cmd windows, which can't be closed

  - by Simon

  Hello, I have a setup for using UnitTest++ like this in VS2008. Sometimes the cmd window, which shows the console output of the unit tests just hangs. I can move the window, resize and stuff, but I'm unable to close it. I see the window in the App tab of the Task Manager, but not in the Process tab, "Switch to process" doesn't work either. Stop debugging or closing VS is also no help, it seems VS has lost control over this window. If this cmd window is lost, I'm unable to shutdown my computer, which is pretty annoying Any hints?

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• How best to convert CakePHP date picker form data to a PHP DateTime object?

  - by Daren Thomas

  I'm doing this in app/views/mymodel/add.ctp: <?php echo $form->input('Mymodel.mydatefield'); ?> And then, in app/controllers/mymodel_controller.php: function add() { # ... (if we have some submitted data) $datestring = $this->data['Mymodel']['mydatefield']['year'] . '-' . $this->data['Mymodel']['mydatefield']['month'] . '-' . $this->data['Mymodel']['mydatefield']['day']; $mydatefield = DateTime::createFromFormat('Y-m-d', $datestring); } There absolutly has to be a better way to do this - I just haven't found the CakePHP way yet... What I would like to do is: function add() { # ... (if we have some submitted data) $mydatefield = $this->data['Mymodel']['mydatefiled']; # obviously doesn't work }

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• Shorten array length once element is remove in Java.

  - by lupin

  Note: Following is my homework/assignment, feel free not to answer if you will. I want to delete/remove an element from an String array(Set) basic, I'm not allowed to use Collections..etc. Now I have this: void remove(String newValue) { for ( int i = 0; i < setElements.length; i++) { if ( setElements[i] == newValue ) { setElements[i] = ""; } } } I does what I want as it remove the element from an array but it doesn't shorten the length. The following is the output, basically it remove the element indexed #1. D:\javaprojects>java SetsDemo Enter string element to be added A You entered A Set size is: 5 Member elements on index: 0 A Member elements on index: 1 b Member elements on index: 2 hello Member elements on index: 3 world Member elements on index: 4 six Set size is: 5 Member elements on index: 0 A Member elements on index: 1 Member elements on index: 2 hello Member elements on index: 3 world Member elements on index: 4 six lupin

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• JDOM 1.1: hyphen is not a valid comment character

  - by Stefan Kendall

  I'm using tagsoup to clean some HTML I'm scraping from the internet, and I'm getting the following error when parsing through pages with comments: The data "- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - " is not legal for a JDOM comment: Comment data cannot start with a hyphen. I'm using JDOM 1.1, and here's the code that does the actual cleaning: SAXBuilder builder = new org.jdom.input.SAXBuilder("org.ccil.cowan.tagsoup.Parser"); // build // Don't check the doctype! At our usage rate, we'll get 503 responses // from the w3. builder.setEntityResolver(dummyEntityResolver); Reader in = new StringReader(str); org.jdom.Document doc = builder.build(in); String cleanXmlDoc = new org.jdom.output.XMLOutputter().outputString(doc); Any idea what's going wrong, or how to fix this? I need to be able to parse pages with long comment strings of <!--------- data ------------>

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• Oracle SqlPlus Command Line: There's a way to concatenate set options?

  - by Lex

  Heya, I need to set up some SET options in Oracle SQLplus command line program each time I use it, such as SET HEADING OFF and the likes to beautify my results. I found that I always have to input each line separately so Set different options and this is becoming annoying since I need to access it many times a day. I found that there's no way to separate different SET commands with semicolumns because it doesn't accept it: SET HEADING OFF; SET LINESIZE 100; returns an error A solution could be adding them to a control script and create a shell alias, but I know control scripts execute and then exit and don't return you control over the command line. So, anybody knows another solution? Or am I missing something?

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• DSP - How are frequency amplitudes modified using DFT?

  - by Trap

  I'm trying to implement a DFT-based equalizer (not FFT) for the sole purpose of learning. To check if it works I took an audio signal, analyzed it and then resynthesized it again with no modifications made to the frequency spectrum. So far so good. Now I tried to silence some frequency bands, just by setting their amplitudes to zero before resynthesis, but definitely it's not the way to go. What I get is a rather distorted signal. I'm using the so-called 'standard way of calculating the DFT' which is by correlation. I first tried to modify the real part amplitudes only, then modifying both the real and imaginary part amplitudes. I also tried to convert the DFT output to polar notation, then modifying the magnitude and convert back to rectangular notation, but none of this is working. Can someone show me what I'm doing wrong? I tried to find info on this subject in the internet but couldn't find any. Thanks in advance.

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• computing "node closure" of graph with removal

  - by Fakrudeen

  Given a directed graph, the goal is to combine the node with the nodes it is pointing to and come up with minimum number of these [lets give the name] super nodes. The catch is once you combine the nodes you can't use those nodes again. [first node as well as all the combined nodes - that is all the members of one super node] The greedy approach would be to pick the node with maximum out degree and combine that node with nodes it is pointing to and remove all of them. Do this every time with the nodes which are not removed yet from graph. The greedy is O(V), but this won't necessarily output minimum number super nodes. So what is the best algorithm to do this?

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• How to reverse childnodes of a XML nodes using C#

  - by Royson

  I want to set reverse order of child nodes of given XML nodes. How to do this??? <Parent> <Child1> </Child1> <Child2> </Child2> </Parent> OUTPUT: <Parent> <Child2> </Child2> <Child1> </Child1> </Parent>

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• How to retrieve .properties?

  - by user1014523

  Im developing desktop java application using maven. I got a *.properties file that I need to retrive during execution (src/resources/application.properties). The only thing comes to my mind is to use: private Properties applicationProperties; applicationProperties.load(new BufferedInputStream(new FileInputStream("src/resources/application.properties"))); This would work if I run my application directly from IDE. I want to to keep outpout hierarchy clear, so I set maven to copy resources folder dircetly to target folder (which is a basedir for the output application). This way application.properties file won't load (since I have target/resources/application.properties but not target/src/resources/application.properties). What is the best way to manage resources so they work both when I debug from IDE and run builded jar file directly?

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• GNU make copy files to distro directory

  - by TheRoadrunner

  I keep my source html (and images etc.) in separate directories for source control. Part of making the distro is to have make copy files to output folder and set the attributes. Today my makefile shows (extract): %.html: /usr/bin/install -c -p -m 644 $< $@ www: $(HTMLDST)/firmware.html $(HTMLDST)/firmware_status.html $(HTMLDST)/index.html $(HTMLDST)/firmware.html: $(HTMLSRC)/firmware.html $(HTMLDST)/firmware_status.html: $(HTMLSRC)/firmware_status.html $(HTMLDST)/index.html: $(HTMLSRC)/index.html This is shown with only three html files, but in reality, there are lots. I would like to just list the filenames (without paths) and have make do the comparison between source and destination and copy the files that have been updated. Thank you in advance Søren

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• Scalaz Kleisli question

  - by oxbow_lakes

  There is a trait called Kleisli in the scalaz library. Looking at the code: import scalaz._ import Scalaz._ type StringPair = (String, String) val f: Int => List[String] = (i: Int) => List((i |+| 1).toString, (i |+| 2).toString) val g: String => List[StringPair] = (s: String) => List("X" -> s, s -> "Y") val k = kleisli(f) >=> kleisli(g) //this gives me a function: Int => List[(String, String)] Calling the function k with the value of 2 gives: println( k(2) ) //Prints: List((X,3), (3,Y), (X,4), (4,Y)) My question is: how would I use Scalaz to combine f and g to get a function m such that the output of m(2) would be: val m = //??? some combination of f and g println( m(2) ) //Prints: List((X,3), (X,4), (3,Y), (4,Y)) Is this even possible?

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• How to configure encoding in maven

  - by Ethan Leroy

  When I run maven install on my multi module maven project I always get the following output: [WARNING] File encoding has not been set, using platform encoding UTF-8, i.e. build is platform dependent! So, I googled around a bit, but all I can find is that I have to add <properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> </properties> to my pom.xml. But it's already there (in the parent pom.xml). Configuring <encoding> for the maven-resources-plugin or the maven-compiler-plugin also doesn't fix it. So what's the problem?

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• Populate Dynamically created ASPX Page

  - by Sandhurst

  Well The title might be a lil confusing, what I am currently doing is creating an aspx form dynamically and saving its data by using Server.Transfer("PrssPage.aspx"). On ProcessPage.aspx I am using the Previous Page property to save the data entered by the user using the dynamically created form. Each Dynamic Form is provided an ID for example 123.aspx Now what I want to achieve is to repopulate the dynamically created aspx page with the user input values from database, plz note here that I do not have an aspx.cs page getting dynamically generated. I am only generating aspx page. Any suggestion ?

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