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  • Are there any simple languages implemented using ANTLR or similar?

    - by etheros
    I'm trying to build a simple interpreted language for learning purposes. I've read countless theory and tutorials on ANTLR and JavaCC, but I can't figure out how to actually make it do something useful. I learn best by "taking something apart and putting it back together again", so, are there any working examples of simple languages implemented with the help of tools such as ANTLR, or similar? Something like the following might be nice: x = 1 if x == 1 print "true"

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  • For what reasons do some programmers vehemently hate languages where whitespace matters (e.g. Python

    - by Maulrus
    C++ is my first language, and as such I'm used to whitespace being ignored. However, I've been toying around with Python, and I don't find it too hard to get used to the whitespace rules. It seems, however, that a lot of programmers on the Internet can't get past the whitespace rules. From what I've seen, peoples' C++ programs tend to be formatted very consistently with respect to whitespace (or else it's pretty hard to read), so why do some people have such a problem with whitespace-based languages like Python?

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  • What's the best way to mix Ruby and other languages? (Especially C++)

    - by Andy
    Hi, I'm learning Ruby, and I'm starting to play with building extensions in C. I have Programming Ruby The Pragmatic Programmers' Guide and so I can follow that for the basic nuts and bolts. What I was wondering is if there already existed some nifty frameworks/whatever to help interoperability between Ruby and other languages, with C++ being the most important for me. I've tried googling, but the results focus on language comparisons, rather than language interoperability. TIA, Andy

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  • How much languages is "recommended" for a dynamic website?

    - by user345690
    When constructing a website, say a Q&A site or a just a forum site for a community, is just knowing HTML,CSS,PHP, MySQL, and javascript enough to make the site dynamic? I am saying this because when I talked with my teacher, he said that major sites use many languages combined. And he said that a site shouldn't be designed only in PHP. So is it possible to create a good website, not e-commerce, with only html,css, and php?

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  • Is Perl still a useful, viable language?

    - by Bob
    I know it may have been asked before, but here goes nothing... Is Perl still something that would be considered useful? If someone was a new programmer (either completely new to programming or just a few month/years of experience) would Perl be something to be considered worthwhile to learn? Is Perl still used with frequency? Is it still popular? Or is Perl dying out compared to languages like Python, Ruby, PHP, ASP, .NET, etc.? Basically it boils down to this: Is it still used/is it still used frequently? If yes, is it dying? If no, will it make a come back? Is it something that would be worth learning? How does it compare in demand to languages like Python in both popularity and usability/viability? Could languages like Python or Ruby be considered replacements for Perl? Also, will newer versions of Perl really bring a large improvement to the Perl community, and perhaps bring Perl back to centerstage compared to other languages? EDIT: Okay, I suppose here's a better, reworded question: Is Perl still growing, or is it "dying"? Is it still a language worth learning and using? What projects does it really "shine" in compared to other languages? What makes Perl a language to choose? Essentially: is Perl growing obsolete compared to other languages, and if so, do you expect that to change, or to continue? And thank you to everyone who has answered so far, the discussion has been really interesting!

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  • Building a common syntax and scoping framework.

    - by Ben DeMott
    Hello fellow programmers, I was discussing a project the other day with a colleague of mine and I was curious to see what others had to say or if such a thing already existed. Background There are many programming languages. There are many IDE's and source editors that highlight and edit source code. Following perfectly and exactly the rules of a language to present auto-complete options and understand scopes in the code is rather complex. This task is complex enough that most IDE's implement different source-editors as plugins that often re-implement the same features over and over but in a different way (netbeans). From what I can tell most IDE's and source editors re-implement parsers that use regular expressions, or some meta-syntax Naur Form to describe the languages grammer generically. These parsers are implemented over and over and over again. Question Has anyone attempted to unify or describe a set of features through an API and have a consistent interface to parsing various programming languages and dialects. I'm not describing an IDE - but a consistent API for any program to use to parse and obtain meta-information from the source code. I realize various programming languages offer many different features which are difficult to 'abstract' into a set of features, but I feel this would be a worthwhile venture. It seems to me that this could possibly allow the authors of interpreters to help maintain a central grammer intepreter for their language. the Python foundation could maintain the Python grammer api, ANSI the C grammer api, Oracle the Java grammer API, etc Example usage If this was API existed code documentation generators could theoretically work across all dialects and languages to some level. It wouldn't matter if your project used 5 different languages a single application could document all of them and the comments and doc-tags within. Has anyone attempted this comprehensively?

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  • Benefits of Server-side Coding

    There are numerous advantages to server scripting languages over client side languages in regards to creating web sites that are more compelling compared to a standard static site. Server side scripting are scripts that are executed on a web server during the compilation of data to return to a client. These scripts allow developers to modify the content that is being sent to the user prior to the return of the data to the user as well as store information about the user. In addition, server side scripts allow for a controllable environment in which they can be executed. This cannot be said for client side languages because the developer cannot control the users’ environment compared to a web server. Some users may turn off client scripts, some may be only allow limited access on the system and others may be able to gain full control of the environment.  I have been developing web applications for over 9 years, and I have used server side languages for most of the applications I have built.  Here is a list of common things I have developed with server side scripts. List of Common Generic Functionality Send Email FTP Files Security/ Access Control Encryption URL rewriting Data Access Data Creation I/O Access The one important feature server side languages will help me with on my website is Data Access because my component will be backed with a SQL server database. I believe that form validation is one instance where I might see server-side scripts and JavaScript used interchangeably because it does not matter how or where the data is validated as long as the data that gets inserted is valid. However, I would have to say that my personal experience would have to sway me in deciding what type of languages to use for form validation because they both have advantages and disadvantages based on the each situation.

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  • Maintaining C/C++/Java skills as a web developer

    - by wwwuser
    When I was in college I learned how to program in C, C++, and Java. Currently, I'm a web developer using front end and back end technologies (HTML/CSS/JS, PHP, MYSQL). While the sorting algorithms and OOP concepts that I learned in college can be applied to web development, I'm looking for ways to keep up my knowledge of all languages. I enjoy programming in C-Style (C/C++/Java) languages and front-end/back-end technologies. Unfortunately, there aren't many options to use C-style languages to build websites. However, I would like to keep up my knowledge and skills in the languages I learned in college as I know they will continue to help me with my growth. What resources are available to keep challenging myself in C-style languages that are relevant to web development? Would contract work for C-style languages be beneficial? Are there sites that offer algorithm challenges? Any help is appreciated. I'm also interested in how others that have asked themselves this have solved this problem.

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  • Any Programming Languages Recommendations? A Space shooter game that allows two people to play at the same time?

    - by Bombcode
    Hey Everyone, Do you remember a arcade game, that allow two people to versus or play each other? A Galaga/Gradius type game. Me and a couple of other people I know wanna make a game like this. We want to get some other opinions on what programming languages to use.(C or C++ isn't an option .). We plan to use an engine to help us build. It's gonna be a multiplayer game, so we would be handling the networking with this language as well. We are thinking about C#, Java, or Actionscript 3. Any Advice on this? And if anyone knows the arcade game I am referring to please post up :)! Edit Let me add something here, this game will be plain on computers and laptops only. We mainly wanna what's good for handling the networking and Dual screen play.

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  • What are the real-world benefits of declarative-UI languages such as XAML and QML?

    - by Stu Mackellar
    I'm currently evaluating QtQuick (Qt User Interface Creation Kit) which will be released as part of Qt 4.7. QML is the JavaScript-based declarative language behind QtQuick. It seems to be a very powerful concept, but I'm wondering if anybody that's made extensive use of other, more mature declarative-UI languages like XAML in WPF or Silverlight can give any insight into the real-world benefits that can be gained from this style of programming. Various advantages are often cited: Speed of development Forces separation between presentation and logic Better integration between coders and designers UI changes don't require re-compilation Also, are there any downsides? A few potential areas of concern spring to mind: Execution speed Memory usage Added complexity Are there any other considerations that should be taken into account?

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  • How can i group and display facebook comments done with FB comments plugin on different pages (same page in different languages)?

    - by user1061544
    I use the Facebook comment plugin on my multilingual website. My website's URL contains website language and when someone comments on example.com/en/page.html it is not visible for user who is viewing the same page in French example.com/fr/page.html I want to display all comments done on the page in different languages (different URLs in this case). How can do that?. This is the comment code as it is described here. <div class="fb-comments" data-href="example.com/fr/page.html" data-num-posts="2" data-width="630"></div>

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  • So do programming languages get updated regularly like everyday applications or are they just x.0 re

    - by Randy
    I was wondering if programming languages and frameworks get updated in small increments or are they just x.0 releases? And if they do how do you keep up on all the changes in every update? I am specifically interested in Objective-C and Cocoa and CocoaTouch. I'm learning from books and online PDF's etc, but often they are at best a few years old. I just would like to know if there have been any changes etc. that should concern me and even if not, inevitably there will be, so where can I look out for them?

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