Getting started with LSP

[manuEbg]

Find Answers to the following Questions:

• [x] What is LSP and how does it Work?
• [x] How can we Integrate it into the Mo|E-Server?
• [x] How can we easily send and Request LSP-Messages? (maybe some Kind of Console-Client)

Due by next (Daily)-Scrum-Meeting (Wed. )

[CSchoel]

Since @manuEbg told me that you had trouble finding good examples to start with the LSP implementation, I took the liberty to do a quick search myself. Maybe you already know of all these projects, but the most promising links I found were the following:

• https://github.com/Microsoft/vscode-extension-samples/tree/main/lsp-sample - well-documented official sample implementation in Typescript.
• https://code.visualstudio.com/api/language-extensions/language-server-extension-guide - official VS code documentation discussing the above example
• https://github.com/eclipse/eclipse.jdt.ls - LSP server for Java using LSP4J
• https://github.com/georgewfraser/java-language-server - LSP server using a custom minimalist LSP implementation
• https://github.com/dragos/dragos-vscode-scala - LSP server for Scala using custom LSP impementation based on ensime
  • seems to be outdated (see next entry)
• https://github.com/scalameta/metals - LSP server for Scala using LSP4J
• https://www.eclipse.org/community/eclipse_newsletter/2017/may/article2.php - minimal example using LSP4J from the eclipse newsletter
• https://www.vogella.com/tutorials/EclipseLanguageServer/article.html - LSP4J tutorial by Lars Vogel (whose tutorials I have previously roasted on my blog, but they should be OK for your purposes :laughing: )

[CSchoel]

I'll also drop a link to my new repo here for reference: https://github.com/MopeSWTP-SS21/LSP4J-test-CS