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RiCal: A New iCalendar Library for Ruby

by Mirko Stocker on  May 11, 2009

RiCal is an implementation of RFC2445, better known as the iCalendar format. We talked to its creator Rick DeNatale to learn why Ruby needed a new library for parsing and generating the iCalendar format.

Language Workbenches May Ultimately Completely Change the Way We Do Programming

by Abel Avram on  May 06, 2009 1

After many years in development, Intentional Software has finally released their Intentional Domain Workbench (IDW). JetBrains has open sourced their Meta Programming System (MPS), currently in Beta 2.

Article: Developing a Complex External DSL

by Abel Avram on  Apr 13, 2009 19

In this article Vaughn Vernon explains the difference between internal and external DSLs and shows the steps involved in developing a complex external DSL.

Panel: DSLs: The Good, the Bad, and the Ugly

by Abel Avram on  Apr 10, 2009 1

In this panel recorded during OOPSLA 2008, the panelists, Jeff Gray (moderator), Kathleen Fisher, Charles Consel, Gabor Karsai, Marjan Mernik, Juha-Pekka Tolvanen, talk about the benefits and drawbacks of using DSLs.

MountainWest RubyConf 2009 Videos

by Mirko Stocker on  Apr 02, 2009 1

MountainWest RubyConf took place from 13-14 March in Salt Lake City. All talks are available from Confreaks; we picked some interesting ones – Rails 3 and Merb, DSL design, usability on Rails, Vertebra – and give a coarse summary and some pointers into the talks.

Jeff Moser's How .NET Regular Expressions Really Work

by Jonathan Allen on  Apr 01, 2009 1

Did you know the last 15 regular expressions are cached? Or that the .NET engine uses a form of machine code? You can learn this and more from Jeff Moser's in-depth study of how regular expressions work in .NET.

Presentation: Domain Expert DSLs

by Abel Avram on  Mar 19, 2009

In this presentation recoded during QCon London 2008, Magnus Christerson discusses about the importance of using DSLs which allow business experts to freely express their knowledge about their domain using familiar tools. Henk Kolk presents a concrete example addressing pension fund issues and based on a DSL.

Article: RGen: Ruby Modeling and Code Generation Framework

by Werner Schuster on  Mar 03, 2009 2

This article introduces RGen, a modeling framework inspired by openArchitectureWare and technologies like the Eclipse's EMF. RGen uses internal DSLs for defining metamodels and offers a full modeling stack for Ruby.

Article: Staying Safe and Sound Thanks to MDSD

by Abel Avram on  Feb 25, 2009 4

In this article, Andreas Kaltenbach explains how Model-Driven Software Development (MSDS) can help solving backward compatibility problems when creating a newer version of a software which can mean a new API or a new database schema that old clients cannot use. MSDS is used to negotiate the differences between versions to ease the upgrading process.

Interview: Lennart Augustsson on DSLs Written in Haskell

by Abel Avram on  Feb 17, 2009 2

In this interview filmed at QCon SF 2008, Lennart Augustsson talks about writing DSLs in Haskell, presenting the advantages offered by the language. In that context, he talks about embedded DSLs, static and dynamic languages, syntax and semantics, monads and many other related topics.

Article: A Message Type Architecture for SOA

by Jean-Jacques Dubray on  Feb 09, 2009 28

This article proposes a new Message Type Architecture to help manage the message formats in a SOA. The approach based on two related DSLs, one for the Enterprise Data Model and one for the Message Types, promotes reuse and helps aligning the Data and SOA governance processes.

Presentation: Convergence: Model-Based Software, Systems And Control Engineering

by Abel Avram on  Feb 06, 2009

In this presentation filmed during OOPSLA 2008, Janos Sztipanovits attempts to tackle the complexity of large scale systems integration. Software, systems and control engineering converge in such systems, raising the integration challenges and demanding a new approach to model-based design.

Presentation: Textual DSLs Made Simple

by Abel Avram on  Jan 21, 2009 6

In this presentation filmed during QCon London 2008, Markus Voelter tried to convince the audience that writing a textual external DSL is fairly straightforward and simple. He took them through the steps needed to create a textual DSL from defining the grammar to processing a domain model.

Interview: Jay Phillips on Adhearsion and VoIP

by Werner Schuster on  Jan 17, 2009

In this interview recorded at RubyFringe, Jay Phillips talks about VoIP, Asterisk and how his framework Adhearsion makes it easy to write voice applications.

Programming Languages: 2008 Review and Prospects for 2009

by Sadek Drobi on  Jan 09, 2009 5

In the beginning of last year, Ehud Lamm launched on Lamba the Ultimate a thread about programming languages predictions for 2008. Several subjects popped up: concurrency, functional programming, future of Java, Ruby, C++, and many others… What really happened in 2008 and what are the prospects for 2009? Bloggers have addressed these questions on demand of James Iry, echoing at last year thread.

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