Hello, I worked on the Kemble/Xtext project last year, with the kind support of Lorenzo Bettini. The problem with Kemble is the language specification, which results in a MACRO language rather than a DSL. I've discussed with Dan many options, Dan's proposal was posted in the mailing list, about the adoption of XTend as embedded language, without feedback. In my opinion, it would be wise validate the language specification, before submit this the to the GSOC.
Cheers Maurizio 2014-03-19 17:00 GMT+01:00 DImuthu Upeksha <[email protected]>: > Hi Dan, > > As far as I have understood we can use XText to write DSL grammar > rules. I went through some XText tutorials and managed to test some > code samples in eclipse. > > However the problem is, what is the use of Kemble to ISIS? Is it like > a programming language written on top of java to represent entities/ > Domain objects of ISIS? If the answer is yes, then we have to come up > with a well defined grammar rule set. In jira ticket you have given > some examples which can get an Idea about that grammar rules. In > addition to that is there a specification just like restful objects > spec for these grammar rules? > > And sorry for the late reply. I was extremely busy with my internship > project in these days. > > Thanks > Dimuthu > > On Thu, Mar 13, 2014 at 11:24 PM, Dan Haywood > <[email protected]> wrote: > > > > > > > > On 13 March 2014 17:38, DImuthu Upeksha <[email protected]> > wrote: > >> > >> Hi Dan, > >> I accidentally noticed ISIS is on apache GSoC project list. I went > >> through some ideas and found idea [1] quite interesting because it > >> includes a lot to learn. If you are ok I would like to give it a try. > >> I'm currently doing my internship and it will be finished at the end > >> of April. So in these days I don't have much time to dedicate. But > >> after April I'll have enough time to dedicate for a GSoC project. > > > > > > no worries. > > > > > >> > >> Where can I begin? > > > > > > I strongly think this should be implemented using Eclipse XText / XBase > so > > that's the place to start. > > > > XText is the main project for designing the DSL grammar > > > > XBase is a base-level DSL to inherit from. It is used as the basis of > > XTend, which is basically an out-of-the-box enhancement to Java (Java 10, > > they call it). > > > > In our original thoughts we wanted to embed Java (as the method body) > within > > the DSL, but I think that using XText requires that the method body must > be > > XBase. I think that's fine, I know that Maurizio thought otherwise. > > > > This slidedeck (from a few years ago) should help untangle these. > > > > > http://www.slideshare.net/schwurbel/pragmatic-dsl-design-with-xtext-xbase-and-xtend-2 > > > > > > There's also a book that came out n the topic (Packt Publishing) a few > > months back. > > > > > > > >> > >> Is this something like writing a new language? > > > > > > Yes. What's nice about XText/XTend is that it also generates all the > > tooling /code completion plugins (for Eclipse). > > > > > >> > >> In > >> fact what is Kemble and its usage? > >> > > > > Kemble is just a name we gave for this language. It doesn't exist, no > one > > is using it. > > > > Why Kemble? Well, it's the name of a village that's close to the source > of > > the River Thames (= River Isis). "Source of Isis" ... if you get the > pun. > > > > Also, Ceylon (JBoss' language) also uses a (defunct) place name. > > > > > > Yeah, if you want to put a GSOC proposal in, that'd be great... > > > > Cheers > > Dan > > > > > >> > >> [1] https://issues.apache.org/jira/browse/ISIS-369 > >> > >> Thanks > >> Dimuthu > >> -- > >> Regards > >> > >> W.Dimuthu Upeksha > >> Undergraduate > >> > >> Department of Computer Science And Engineering > >> > >> University of Moratuwa, Sri Lanka > > > > > > > > -- > Regards > > W.Dimuthu Upeksha > Undergraduate > > Department of Computer Science And Engineering > > University of Moratuwa, Sri Lanka >
