Scheme-langserver – Digest incomplete code with static analysis
Scheme-langserver digest incomplete Scheme code to serve real-world programming requirements, including goto-definition, auto-completion, type inference and such many LSP-defined language feature supports. And this project is based here(https://github.com/ufo5260987423/scheme-langserver). I built it because I was tired of Scheme/Lisp's raggy development environment, especially of the lack of IDE-like highly customized programing experience. Though DrRacket and many REPL-based counterparts have don't much, following general cases aren't reach same-level as in other…
In plain words
Scheme-langserver is a language server that analyzes incomplete Scheme code to provide modern IDE features like goto-definition, auto-completion, and type inference. Built for Scheme and Lisp programmers frustrated with limited development environments, it delivers language server protocol support to enable a more polished coding experience comparable to mainstream languages. The tool processes partial code to assist with real-world programming tasks.
written from the facts on this page · September 2026
From the sources
In the maker’s words, at launch
Scheme-langserver digest incomplete Scheme code to serve real-world programming requirements, including goto-definition, auto-completion, type inference and such many LSP-defined language feature supports. And this project is based here(https://github.com/ufo5260987423/scheme-langserver). I built it because I was tired of Scheme/Lisp's raggy development environment, especially of the lack of IDE-like highly customized programing experience. Though DrRacket and many REPL-based counterparts have don't much, following general cases aren't reach same-level as in other modern languages: (let* ([ready-for-reference 1] [call-reference (+ ready-for-)])) Apparently, the `ready-for-` behind `call-reference` should trigger an auto-complete option, in which has a candidate `ready-for-reference`. Besides, I also know both of them have the type of number, and their available scope is limited by `let*`'s outer brackets. I wish some IDE to provide such features and such small wishes gradually accumulated in past ten years, finally I wasn't satisfied with all the ready-made products. If you want some further information, you may refer my github repository in which has a screen-record video showing how you code get help from this project and this project has detailed documentation so don't hesitate and use it. Here're some other things sharing to Hacker News readers: 1. Why I don't use DrRacket: LSP follows KISS(Keep It Simple, Stupid) principle and I don't want to be involved with font things as I just read in its github issues. 2. What's the newest stage of scheme-langserve: It achieves kind of self-boost, in which stage I can continue develop it with its VScode plugin help. However, I directly used Chez Scheme's tokenizer and this leaded to several un-caught exceptions whom I promise to be fixed in the future, but I'm occupied with developing new feature. If you feel something wrong with scheme-langserver, you may reboot vscode, generally this always work. 3. Technology road map: I'm now developing a new macro expander so that the users can customize LSP behavior by coding their own macro and without altering this project. After this, I have a plan to improve efficiency and fix bugs. 4. Do I need any help: Yes. And I'd like to say, talking about scheme-langserver with me is also a kind of help. 5. Long-term View: I suspect 2 or 3 years later I will lose concentration on this project but according some of my friends, I may integrate this project with other fantastic work.
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