This post is a continuation of my LSP and Xtext Tutorial. In this post I present how to create the language to have all the necessary configurations to work. The full code for this example can be found here. Create the project The project is created as a standard Xtext project.
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The Language Server Protocol (LSP), created by Microsoft, is one of the latest and greatest tools in the toolset of language engineers. As such, the maintainers of Xtext have implemented support for it. Since LSP is just a protocol, there are several ways to use it and also to consume it.
Continue ReadingIf you are into EMF modeling, you know that you can define custom operations and fields in EMF models. Xtext allows to make use of this feature in an elegant way. Let us start with the block language with a separate EMF metamodel from a previous tip. The full code for this example can be found here.
Continue ReadingIn a previous tip I showed how to migrate from a generated EMF model to a manually maintained one. Turning something automatic to manual sounds completely counter intuitive. We should automate more, not the contrary. However, there are some good reasons to do this. Let’s explore them: Separation of concerns I see the grammar is a presentation artifact.
Continue ReadingXtext is very good at inferring a metamodel from a grammar but it has its limitations. After reaching a certain complexity, I think it is important to decouple the grammar from the metamodel. This is allows to separate concerns: the metamodel becomes the “business model layer”, and the grammar becomes the “presentation layer”.
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