42 lines
1.8 KiB
Markdown
42 lines
1.8 KiB
Markdown
Work in progress.
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An attempt to write a [Language Server Protocol](https://en.wikipedia.org/wiki/Language_Server_Protocol) server using XQuery 4.0 and the [BaseX websocket](https://docs.basex.org/main/WebSockets) feature.
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## LSP Server
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* `webapp/lsp` The LSP implementation in XQuery using WebSockets for transport and the [JSON-RPC](https://www.jsonrpc.org/specification) 2.0 API for message format.
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### Dev notes
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State is held in websocket attributes.
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|Name|Use|
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|----|---|
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|initized|set true after client sends intialized messag|
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|files|A map whose keys are open uris, values are maps (doctype-> attribute name where doctype is stored| |
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|file-{uuid}|name of websocket attribute with textDocument|
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|parse-{uuid}|name of websocket attribute with parse tree XML|
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## Sample html clients
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### Using `CodeMirror6`
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* `webapp/static/codemirror` A test html page using the [CodeMirror6 editor](https://codemirror.net/) that connects to the BaseX LSP instance
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### Using `Ace Editor`
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* `webapp/static/ace` A test html page using the [Ace editor](https://ace.c9.io/) that connects to the BaseX LSP instance
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## Uses
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* https://github.com/mkslanc/ace-linters https://mkslanc.github.io/ace-linters/
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I needed `set NODE_OPTIONS=--max_old_space_size=8192` for build to complete
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Or `node --max-old-space-size=8192 node_modules/webpack-dev-serve
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r/bin/webpack-dev-server.js`
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## Notes
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java -cp org.eclipse.lemminx-uber.jar org.eclipse.lemminx.XMLServerSocketLauncher`
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Using https://github.com/mkslanc/ace-linters https://mkslanc.github.io/ace-linters/
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Make a websocket server for lsp on port 3000
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https://mkslanc.github.io/ace-linters/websocket.html
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http://localhost:3000/exampleServer
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https://github.com/mkslanc/ace-linters/blob/c1b317e01299016ac7da6588361228637f4eac25/packages/demo/websockets-lsp/server/server.ts
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https://www.jsonrpc.org/specification
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