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• Really minimum lisp

  - by Mgccl

  What is the minimum set of primitives required such that a language is Turing complete and a lisp variant? Seems like car, cdr and some flow control and something for REPL is enough. It be nice if there is such list. Assume there are only 3 types of data, integers, symbols and lists.(like in picolisp)

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• What was the strangest coding standard rule that you were forced to follow?

  - by Brian R. Bondy

  When I asked this question I got almost always a definite yes you should have coding standards. What was the strangest coding standard rule that you were ever forced to follow? And by strangest I mean funniest, or worst, or just plain odd. In each answer, please mention which language, which team size, and which ill effects it caused you and your team.

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• Why does FastCGI not work well with Ruby on Rails?

  - by Jian Lin

  It is said that FastCGI doesn't work well with Ruby on Rails deployment. Why is that? In previous experience, something either works quite well or it might be fundamentally wrong. So if FastCGI is a viable solution, why is it not reliable with RoR? Does FastCGI work well with most any language / frameworks?

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• Are there compelling reasons not to use Groovy?

  - by Leonard H Martin

  I'm developing a LoB application in Java after a long absence from the platform (having spent the last 8 years or so entrenched in Fortran, C, a smidgin of C++ and latterly .Net). Java, the language, is not much changed from how I remember it. I like it's strengths and I can work around its weaknesses - the platform has grown and deciding upon the myriad of different frameworks which appear to do much the same thing as one another is a different story; but that can wait for another day - all-in-all I'm comfortable with Java. However, over the last couple of weeks I've become enamoured with Groovy, and purely from a selfish point of view: but not just because it makes development against the JVM a more succinct and entertaining (and, well, "groovy") proposition than Java (the language). What strikes me most about Groovy is its inherent maintainability. We all (I hope!) strive to write well documented, easy to understand code. However, sometimes the languages we use themselves defeat us. An example: in 2001 I wrote a library in C to translate EDIFACT EDI messages into ANSI X12 messages. This is not a particularly complicated process, if slightly involved, and I thought at the time I had documented the code properly - and I probably had - but some six years later when I revisited the project (and after becoming acclimatised to C#) I found myself lost in so much C boilerplate (mallocs, pointers, etc. etc.) that it took three days of thoughtful analysis before I finally understood what I'd been doing six years previously. This evening I've written about 2000 lines of Java (it is the day of rest, after all!). I've documented as best as I know how, but, but, of those 2000 lines of Java a significant proportion is Java boiler plate. This is where I see Groovy and other dynamic languages winning through - maintainability and later comprehension. Groovy lets you concentrate on your intent without getting bogged down on the platform specific implementation; it's almost, but not quite, self documenting. I see this as being a huge boon to me when I revisit my current project (which I'll port to Groovy asap) in several years time and to my successors who will inherit it and carry on the good work. So, are there any reasons not to use Groovy?

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• Implementing yahoo contact api in vb.net?

  - by Abhisheks.net

  Hello everyone.. i have a application developed in asp.net and vb.net as server language, and from this app user can send invitation. so i want to import yahoo, gmail, hotmail and some other mailing system, i have been implemented this service for gmail and this is going very well but for yahoo i am unable . so please give me some example. thanks for any response

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• How do machine code instructions get transferred to the CPU?

  - by user3711789

  I'm currently investigating what the runtime of different programming languages looks like behind the scenes. For a compiled language like C, people usually give the explanation of "Code is compiled to assembly which is assembled and linked into a binary executable. The executable is then loaded into memory and the CPU interprets it." My question is how does the CPU know where to look for the next instruction to execute? Is it a memory address stored in one of the registers?

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• Define a default .properties file in JAVA

  - by bnabilos

  Hello, I have 2 .properties files in my java project and I want to define one of them as default file to be used when the language of the operating system is different from the 2 languages already defined. Can you tell me please what should I add to my code to make that possible? Thank you

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• Java: I want to print reverse of any String without using any predefine function?

  - by Sanjeev

  how to print reverse of String "java is object orientated language" without using any predefine function like reverse() in java? any idea.

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• Crackers - How do they do it, how do we fight back?

  - by zedo

  As someone who is interested in learning more about the security side of technology, I ask you all the following questions: How is it that crackers crack software? What techniques are used to do so? I would imagine that the cracking methods depend upon the language the software is written in, right? Aside from using something like cloud-based security for SaaS ((software as a service) which isn't always an option), what choices does one have to prevent their software from being compromised?

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• Is there already FUSE filesystem that serialise each request to stream?

  - by Vi

  Concept: nc -lp 1234 -e fusexmp_server nc 127.0.0.1 1234 -c "fusestream /mnt/tmp" Advantages are: Easy implementation of servers in high level language (without need of any arch-dependent things like JNI or whatever) Simple ad-hoc networking filesystem out of the box. Accessibility without actual FUSE (when it is inaccessible): nc -lp 1234 -e fusexmp_server& fakefusestream 127.0.0.1 1234 % ls bin lib usr proc etc % get /etc/hosts % exit Is there already such thing or I should implement it?

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• add(a,b) and a.add(b)

  - by hero

  how can i transform a method (that performs a+b and returns the result) from add(a,b) to a.add(b)? i read this somewhere and i can't remember what is the technique called... does it depends on the language? is this possible in javascript?

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• Save All Values of Database to Text File?

  - by cam

  I was wondering if there was a way to extract all the values of a column, and then save each value into separate text files (labeled ANYTHING, 1-100 works fine). I know how to do this through another language, but I'm using SQL Server 2008 with Microsoft SQL Server Manager and it would save me some time from figuring out how to do it through C#.

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• Nested function in C

  - by Sachin Chourasiya

  Can we have a nested function in C? What is the use of nested functions? If they exist in C does there implementation differes from compiler to compiler. Are nested functions allowed in any other language? If yes then what is there significance?

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• How to extract the data from a website using java?

  - by giri

  Hi I am familier with java programming language I like to extract the data from a website and store it to my database running on my machine.Is that possible in java.If so which API I should use. For example the are number of schools listed on a website How can I extract that data and store it to my database using java.

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• Learn Actionscript 3.0+Flash Vs. C#

  - by user335932

  I have a background in python and I'm looking for a new language. I am almost only intrested in making games. I have come to 2 languages. C# and Action Script. C# because Microsoft allows you to make Indie XBLA games programmed in C# ONLY. Action Script so I can make flash games for new grounds and ect. What do you think is better to learn in the long run?

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• How can I programatically move one Terminal.app window to another space?

  - by Gavin Brock

  If I have several OS-X Terminal.app windows open, how can I move one Terminal window to another space? I'm happy to use any scripting or programming language to achieve this, but would prefer AppleScript or calls to standard frameworks. (Note this is to move only one window of an application not all windows.)

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• Is there a good in-browser code editor?

  - by levik

  We've all seen in-browser rich text editors, which allow you to edit colored/styled text in a WYSIWYG manner. But what about code editors, which automatically highlight code based on language rules as you type? Think Eclipse in a textarea (but without the refactoring support). Do such things exist? I imagine scaling would be a problem - larger files would be difficult to edit efficiently.

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• ASP.NET javascript close page after timeout?

  - by AliRiza Adiyahsi

  I want show an information page after success db opartions. And after the info I want to close each pages (information page and main page) I wrote this in button oncommand event: //but this code does not work Response.Write("<script language='javascript'>setTimeout('self.close();',3000);</script>"); at the same time, I want to show an information message. And then I want to close all, after three seconds.I hope I could explain :) Thanks.

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• App_GlobalResources not detected on production server

  - by Hugo Zapata

  I have a asp.net web application project, with some global resources. If i deploy to my dev machine, the resources are used correctly, however in the production server the text appears in the default language so the global resources are not being read. Any ideas? (i copied the App_GlobalResources directory to the production web dir root)

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• What libraries provide cross-platform 3D and P2P support?

  - by uckelman

  I'm trying to find a constellation of libraries which, taken together, meet the following requirements: Smooth scaling, rotation, panning (in two dimensions). I'll have a large bitmap (or SVG, in some cases), maybe up to 10000x10000 pixels, which serves as map, with some middling number of small bitmaps (or, again, possibly SVG) that can be dragged around over it. I need to be able to zoom, rotate, and pan this scene; however, the view will always be normal to (i.e., looking head-on at) the large bitmap, so I'm not really using the depth dimension. Peer-to-peer. I'd like for multiple users to be able to connect in order to share one of the scenes mentioned above, preferably peer-to-peer, without much configuration by the user. I'm intending to have a server running for cases where users are unable to connect P2P; I'd like to have the failover happen automatically, or possibly have some way of promoting clients who are capable to be servers themselves. Synchronization. Once a user has started dragging one of the small bitmaps (a piece), no other user should be able to drag that piece until the drag stops. I haven't thought of exactly how to do this---there might be a simple solution, or this kind of synchronization might be something that a library provides. Cross(ish)-platform. I need to be able to run on Linux, Windows, and Mac OS. It would be nice to also be able to run on tablets. Having mostly the same code for all platforms is a plus, but not absolutely necessary. (L)GPL compatible. I'm planning to release under the LGPL or GPL, preferably the latter, so I need libraries which have compatible licenses. I'm not set on any particular language, I'd like to use the library or libraries which make the work easiest, though my preference is to work in at most two languages for the project. (The Model could potentially be in one language and the View in another, so they could talk to each other via some protocol I define, if that would get me a better selection of libraries to use.) Can anyone offer suggestions for what to use?

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• how to use ffmpeg

  - by Moayyad Yaghi

  hello .. im trying to extract frames from a video .. and i picked ffmpeg ( tell me if you know something better ) for this task i downloaded it's source .. and i don't know how to use it ?? how do i compile it ?? what is the recommended language for it ?? i know python and C++ please note that i use windows vista 64x .

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• How do I use the conditional operator?

  - by Jeremy Rudd

  I've always wondered how to write the "A ? B : C" syntax in a C++ compatible language. I think it works something like: (Pseudo code) If A > B C = A Else C = B Will any veteran C++ programmer please help me out?

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• Problem with making custom syntax highlighting in TextMate. Help!

  - by Andrei

  Hi, I am trying to highlight a custom language in TextMate. However, the following definition does not highlight PHP insertions: { scopeName = 'source.serpent'; fileTypes = ( 'serpent' ); patterns = ( { begin = '<\?'; end = '\?>'; patterns = ( { include = 'source.php'; } ); }, ); } What can be the reason? Should it work?

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• How are the concepts of process and threads implementated in Linux kernel?

  - by Shan

  Can any one explain how are the concepts of process and threads implemented in Linux kernel ? I am looking for an intuitive explanation with some C snippets ( and important data structures) that clearly distinguishes between the two. I am just looking for the key implementation ideas I should get hold off. Essentially, I want to understand them and implement something similar in an embedded target (not supporte by any OS) in C language.

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• Best programming based games

  - by Matt Sheppard

  Back when I was at school, I remember tinkering with a Mac game where you programmed little robots in a sort of pseudo-assembler language which could then battle each other. They could move themselves around the arena, look for opponents in different directions, and fire some sort of weapon. Pretty basic stuff, but I remember it quite fondly, even if I can't remember the name. Are there any good modern day equivalents?

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