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• How to undo an hg merge? (I think.)

  - by Grumdrig

  I'm new to collaborating with Mercurial. My situation: Another programmer changed rev 1 of a file to replace 4-space indents with 2-space indent. (I.e. changed every line.) Call that rev 2, pushed to the remote repo. I've committed substantive changes rev 1 with various code changes in my local workspace. Call that rev 3. I've hg pulled and hg mergeed without a clear idea of what was going on. The conflicts are myriad and not really substantive. So I really wish I'd changed my local repo to 2-space indents before merging; then the merge will be trivial (i'm supposing). But I can't seem to back up. I think I need to hg update -r 3 but it says abort: outstanding uncommitted merges. How can I undo the merge, changes spacing in my local repo, and remerge?

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• Delphi connection to OpenEdge Progress-4GL Database

  - by Cesar Marrero

  Folks: Has anyone had success connecting to a Progress-4GL database with Delphi?   I've been unable to establish any connection with the ODBC driver provided by the vendor (Progress OpenEdge 10.1C Driver). I've entered (what I believe are) the right parameters, but keep on getting an error whenever I test the connection: "[DataDirect][ODBC Progress OpenEdge Wire Protocol driver] Socket closed." Background: I've been tasked to re-design a 13-year-old application, but the original programmer did not provide any supporting documents, passwords, configuration setup, etc. (I'm on my own)!   To make things worse, online help and useful documentation about Progress is scarce (I had never heard about this database until now). I want to examine the existing data, maybe create an ERD to familiarize myself with the schema, but I can't even access the data outside of the OpenEdge code. Any help is appreciated!

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• 10 lines of code per day is the global average!? -- true?

  - by Earlz

  Ok so last year I participated in a high school curriculum contest thing at a college(I currently attend this college). I actually got 1st in it but was still a bit angry I didn't get every single one right. The most baffling of questions on there was How many lines of code does the average programmer write per day? A. 5 B. 10 C. 25 D. 30 Aside from being a subjective question which depended on language and everything else I was more baffled at what they had as the correct answer. 10. Even on my bad days at my job I touch more than 10 lines of code(either adding, modifying, or deleting) per day. And when I took this test I had only programmed as a hobby where it was common for me to write a few hundred lines for one of my new projects per day. Where are they getting this random number of ten!? Is this published somewhere? A quick googling found me nothing.

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• Is the switch to Dvorak worth it?

  - by Kevin Weil

  To those who were experienced ( 70 WPM, say) typists before the switch to Dvorak -- were you faster after switching? There are a couple good SO threads on Dvorak, but they are more on how to learn or reduction in typing pain than speed before/after. I know it will take me 1-2 months to feel comfortable, but I want to know if I should expect to be faster afterward. I am a programmer and type maybe 90-110 WPM on QWERTY. EDIT: I agree that coding is not typically IO-bound, and that a minimum typing speed is sufficient. This is half from curiosity, but it will be an undertaking to achieve QWERTY parity, so I want to know if I should at least expect some asymptotic improvement.

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• Are you as productive in Javascript as you are in .Net or Java?

  - by bglenn

  I code primarily in javascript and in vb.net. I've found that if I can achieve the same thing in both javascript and vb.net that I feel far more productive and expressive using javascript for the task. I often find myself researching server-side javascript implementations to see if anything has gone mainstream so that I can code my back-end business logic and data access in javascript. Given all the advanced tooling and language features in .Net this preference seems somewhat paradoxical to me. I'm not suggesting one is better than the other (I've been a vb programmer since I started programming), I'm just wondering if my preference is entirely subjective or if anyone else shares it. So, does anyone else enjoy coding in javascript to the point where you prefer it to the .Net and Java environment, and if, so why?

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• Career advice: I am best at what I hate most

  - by flybywire

  I think my career has entered a vicious circle which I would like to exit: I am best at what I hate most. And because I am good at that, I always receive that kind of assignments, and I do them as expected or even better. Which makes me more of an expert and brings me more similar tasks. My "expertise" is what (I think) every programmer hates: legacy systems. I can very quickly learn systems, and modify them, migrate them, extract web services from them whatever (without breaking them). Never to develop more functionality or to solve interesting or original problems. Just have that work with Java 1.4, or convert it into a rest-full service or support oracle too. I feel (and I am told) that I am highly regarded and very helpful to my company. But I hate what I do. What would you do in my place?

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• Java: notify() vs. notifyAll() all over again

  - by Sergey Mikhanov

  If one google for "difference between notify() and notifyAll()" then a lot of explanations will pop up (leaving apart the javadoc paragraphs). It all boils down to the number of waiting threads being waken up: one in notify() and all in notifyAll(). However (if I do understand the difference between these methods right), only one thread is always selected for further monitor acquisition; in the first case the one selected by the VM, in the second case the one selected by the system thread scheduler. The exact selection procedures for both of them (in general case) are not known to the programmer. What's is the useful difference between notify() and notifyAll() then? Am I missing something?

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• Object Oriented database development jobs

  - by GigaPr

  Hi, i am a software engineering student currently looking for a job as developer. I have been offered a position in a company which implements software using object oriented databases. these are something completely new for me as at university we never worked on it, just some theory. my questions are do you think is a good way to start my career as developer? what is the job market for this type of developemnt? are these skills requested? what markets this technology touches? thanks

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• Etiquette for refactoring other people's sourcecode?

  - by Prutswonder

  Our team of software developers consists of a bunch of experienced programmers with a variety of programming styles and preferences. We do not have standards for everything, just the bare necessities to prevent total chaos. Recently, I bumped into some refactoring done by a colleague. My code looked somewhat like this: public Person CreateNewPerson(string firstName, string lastName) { var person = new Person() { FirstName = firstName, LastName = lastName }; return person; } Which was refactored to this: public Person CreateNewPerson (string firstName, string lastName) { Person person = new Person (); person.FirstName = firstName; person.LastName = lastName; return person; } Just because my colleague needed to update some other method in one of the classes I wrote, he also "refactored" the method above. For the record, he's one of those developers that despises syntactic sugar and uses a different bracket placement/identation scheme than the rest of us. My question is: What is the (C#) programmer's etiquette for refactoring other people's sourcecode (both semantic and syntactic)?

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• Do you get Freelance projects while you have a job ?

  - by Canavar

  The title is obvious, do you get freelance projects while you have a job ? How do you plan your schedule ? I mean when I get freelance work sometimes I feel very overloaded. How do you overcome this ? Which scale projects do you prefer ? Do you prefer new technologies to improve your skills ? EDIT : Working on freelance projects in your day job is not acceptable, not ethical (unless specifically permitted by your employer). I am just asking how you schedule your free time after your day job for a freelance project ?

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• What are modern and old compilers written in?

  - by ulum

  As a compiler, other than an interpreter, only needs to translate the input and not run it the performance of itself should be not that problematic as with an interpreter. Therefore, you wouldn't write an interpreter in, let's say Ruby or PHP because it would be far too slow. However, what about compilers? If you would write a compiler in a scripting language maybe even featuring rapid development you could possibly cut the source code and initial development time by halv, at least I think so. To be sure: With scripting language I mean interpreted languages having typical features that make programming faster, easier and more enjoyable for the programmer, usually at least. Examples: PHP, Ruby, Python, maybe JavaScript though that may be an odd choice for a compiler What are compilers normally written in? As I suppose you will respond with something low-level like C, C++ or even Assembler, why? Are there compilers written in scripting languages? What are the (dis)advantages of using low or high level programming languages for compiler writing?

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• SSAS 2008 backup/restore fails with a GetOverlappedResult 'Insufficient system resources exist to co

  - by Anant Aneja

  Hi, On my SSAS 2008 instance if a backup/restore of any database is made to/from a UNC path I get an error : The following system error occurred from a call to GetOverlappedResult for Physical file: '\server\share\OLAPDB.abf', Logical file: '' : Insufficient system resources exist to complete the requested service. . Server: The operation has been cancelled. (Microsoft.AnalysisServices) Creating/copying/moving a file on the share of any size on the share using explorer or the command prompt works. The most useful link I could find is : http://www.tech-archive.net/Archive/Development/microsoft.public.win32.programmer.kernel/2004-07/0475.html Can anyone shed more light on what could be causing this error ? (I've posted the same question on the SSAS forums - just a heads up)

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• Python Tkinter - Edit external object within event handler?

  - by M3RPHY

  Hey all, As the title says, I'm grabbing the cursor location within a motion triggered event handler in Tkinter. I'd like to update an existing label widget with the location, however I cannot for the life of me figure out how to edit the label's text field (or any external object for that matter) within the event handler. From what I understand, event is the only argument passed to the handler, which means I can't pass the label object. How do I access objects outside of the handler? Apologize for the noobish question as I'm a C programmer new to Python. Thanks!

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• How to pass an input value from a small form into a big form? (PHP, Javascript, URLs)

  - by sarahdopp

  I have a Wordpress website that needs to display a 3rd party newsletter signup form. This sign-up form has lots of fields and takes up its own full page. I want to display a simple "enter email address, hit submit" form at the top of every page. When the user hits submit, it should take them to the full form, where their email address is already pre-populated in the appropriate field. What's a good way to pass the input value from the short form to the long form? I'm inclined to use the URL somehow, but I've never approached it before. (My skills: expert XHTML/CSS. competent with WP theme hacking. comfortable enough with PHP and Javascript to move things around, but not enough to write them from scratch.) Thanks!

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• how u guys learn coding and programming

  - by dramasea

  Hi, I am a newbie on programming and currently still learning. Can you contribute your opinion on how to learn that faster. I learn every single element of the language such as Javascript date object methods and properties: http://www.w3schools.com/jsref/jsref_obj_date.asp but it is pretty much all the same, should i read through it? or i just left it. You know that's very boring with just reading. So, can I ask those professional programmer, do you also read these when you learn programming?

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• Python 3.1.1 Class Question

  - by Protean

  I'm a new Python programmer who is having a little trouble using 'self' in classes. For example: class data: def __init__(self): self.table = [] def add(self, file): self.table.append(file) data.add('yes') In this function I want to have table be a variable stored in the class data and use add to modify it. However, when I run this script it gives me the error: Traceback (most recent call last): File "/Projects/Python/sfdfs.py", line 7, in <module> data.add('yes') TypeError: add() takes exactly 2 positional arguments (1 given) I assume that I am trying to call the function the wrong way in this instance, as this syntax is very similar to an example in the python documentation: http://docs.python.org/3.1/tutorial/classes.html

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• On Android, click to expand list -and- click on a button?

  - by Aurora

  I have just started my career as an android programmer, and am currently relying heavily on the sample code and api examples. I have been working with this api example, to produce an expandable list of items (note this example does not use the ExpadableListView). In playing with the example, I tried to add another widget that would become visible and be gone at the same time as the text (mDialogue in the sample code). This works well with another TextView, but as soon as I tried to add a button widget, it stopped working. The list would expand on first click, showing my hidden TextView and Button, but it will not disappear on further clicks. The button is however, clickable, and I was able to set up an onClick listener to change the button text back and forth. I'm starting to wonder, is it just not possible to have a clickable item inside a clickable list item? Or is there some kind of work around? Would it solve my problem if I used ExpandableListView?

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• LaTeX: Default font(s) for greek letters?

  - by Marco

  I'm a programmer but new to (La)TeX. As far as I can tell, neither the Computer Modern nor Latin Modern fonts have glyphs for the full greek alphabet. I installed (OS X) a Latin Modern font that came with TeX Live (lmroman10-regular.otf). As you can see in the attached image, the lowercase greek letters (and nabla) are displayed (TextEdit) using some default font. Also shown in the image is LaTeXiT displaying pretty lowercase greek letters that seem to be Latin-Modern-Italic-ish. So what font(s) are used by LaTeX for greek (and math symbols)? Where would I find them in the TeX fonts directory? Image: http://imgur.com/dvyyB.png

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• naive bayesian spam filter question

  - by Microkernel

  Hi guys, I am planning to implement spam filter using Naive Bayesian classification model. Online I see a lot of info on Naive Bayesian classification, but the problem is its a lot of mathematical stuff, than clearly stating how its done. And the problem is I am more of a programmer than a mathematician (yes I had learnt Probability and Bayesian theorem back in school, but out of touch for a long long time, and I don't have luxury of learning it now (Have nearly 3 weeks to come-up with a working prototype)). So if someone can explain or point me to location where its explained for programmers than a mathematician, it would be a great help. PS: By the way I have to implement it in C, if you want to know. :( Regards, Microkernel

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• How can I make a grid of clickable images from a list of data in WPF?

  - by mico

  Hello, I am a seasoned C and Java programmer, but an absolute WPF newbie. I am creating a kiosk application that will display a list of images of products that the user will click to see product details and maybe place an order. I am trying to structure my app with MVVM Foundation because I am used to the benefits of structure and tests. I wonder what is the most natural way to create a grid of clickable images that will fill the screen left to right, top to bottom (or the other way round, I have no exact requirements). Any image should be bound to an object that will become current and be displayed in the next screen. Thanks for your help.

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• Objective-C (iPhone) Memory Management

  - by Steven

  I'm sorry to ask such a simple question, but it's a specific question I've not been able to find an answer for. I'm not a native objective-c programmer, so I apologise if I use any C# terms! If I define an object in test.h @interface test : something { NSString *_testString; } Then initialise it in test.m -(id)init { _testString = [[NSString alloc] initWithString:@"hello"]; } Then I understand that I would release it in dealloc, as every init should have a release -(void)dealloc { [_testString release]; } However, what I need clarification on is what happens if in init, I use one of the shortcut methods for object creation, do I still release it in dealloc? Doesn't this break the "one release for one init" rule? e.g. -(id)init { _testString = [NSString stringWithString:@"hello"]; } Thanks for your helps, and if this has been answered somewhere else, I apologise!! Steven

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• Shopping Portal based on XML Data - XSLT or PHP?

  - by buggy1985

  For my bachelor thesis I want to implement a shopping (price comparison) portal prototype based on XML Data. The main requirement is to get a very clear and customizable HTML template, which should be hosted by the customer on his own webserver. I'm not very sure if XSLT meets this requirements, as it generates a lot of xsl-related code. It is not easy to understand for people with little HTML skills. I have some experience with the PHP templating engine Smarty. The syntax is much better, but I'm not sure if it's a good idea to parse the XML data with PHP, as it is very complex. Which language should I choose for a web application with high complexity? XSLT or PHP?

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• UIPickerView with NSDictionary

  - by Dave

  I am a .NET programmer and new to Objective C. I am trying to make a UIPickerView which acts like a .NET dropdownlist. User sees the list of text and selects one and the selected value (which is the ID) is used in code. I have been browsing for almost half a day trying to figure this out. I could add a regular PickerView with list of strings, picker view with mulitple components and picker view with dependent components none of which seems to answer my query. Please help.

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• Writing Android apps in C#

  - by JamesBrownIsDead

  I'm a C# programmer and want to write an Android app. I'm a stubborn curmudgeon and refuse to write Java ever again (after switching to C# six years ago). Besides Mono and MonoDroid (and writing Java), are there any options for me? Or should I just feel foolish for refusing to returning to my Java roots? (Please refrain from Java-related vs. C# discussion. I was being rhetorical when I asked about returning to me Java roots.)

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• Installing fonts

  - by Lazar

  I have "white nights" trying to install Hebrew/Arabic fonts on my level 7 (API 2.1) aka Nexus emulator. I can't understand why Google guys will want to waist my skills do something helpful for the community using Hebrew/Arabic fonts. After rw mount/remount I can do it for level 3 devices, but for Nexus - nada! Why? What can be done? Real devices guys already broke this peace of hardware, but I am sitting and looking wide eyes open like a sheep. Please make me happy and give the chance to install the fonts. That's what must be done for some of us: We need system image saved on exit for tomorrow to continue the work Open emulator to work in peace cp command included with the SDK. Thanks for any help

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