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https://github.com/WolframResearch/LSPServer
LSPServer is a package that implements the Language Server Protocol for Wolfram Language and allows a Wolfram Language kernel to run as an LSP server.
https://github.com/WolframResearch/LSPServer
editor ide language-server-protocol lsp lsp-client lsp-server mathematica sublime-text visual-studio-code wolfram wolfram-language wolfram-mathematica
Last synced: 3 months ago
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LSPServer is a package that implements the Language Server Protocol for Wolfram Language and allows a Wolfram Language kernel to run as an LSP server.
- Host: GitHub
- URL: https://github.com/WolframResearch/LSPServer
- Owner: WolframResearch
- License: mit
- Created: 2021-08-27T19:43:08.000Z (about 3 years ago)
- Default Branch: master
- Last Pushed: 2022-12-19T12:12:52.000Z (almost 2 years ago)
- Last Synced: 2024-06-25T22:43:06.882Z (4 months ago)
- Topics: editor, ide, language-server-protocol, lsp, lsp-client, lsp-server, mathematica, sublime-text, visual-studio-code, wolfram, wolfram-language, wolfram-mathematica
- Language: Mathematica
- Homepage:
- Size: 2.2 MB
- Stars: 46
- Watchers: 6
- Forks: 9
- Open Issues: 2
-
Metadata Files:
- Readme: README.md
- Changelog: CHANGELOG.md
- Contributing: CONTRIBUTING.md
- License: LICENSE
Awesome Lists containing this project
README
# LSPServer
LSPServer is a package that implements the [Language Server Protocol](https://microsoft.github.io/language-server-protocol/) for Wolfram Language and allows a Wolfram Language kernel to run as an LSP server.
[Developing Wolfram Language Code in Other Editors and IDEs with LSP from WTC 2021: Watch Video (youtube)](https://www.youtube.com/watch?v=nXVEOUMZbzQ)
LSPServer implements several LSP features:
* Code diagnostics
* Suggestions for fixes
* Formatting files and selections
* Semantic highlighting
* Expand / shrink selection
* Outline
* Color swatches
* Symbol references
* Documentation on hover
This repo is for users who are interested in adding LSP support for Wolfram Language to LSP clients.
There are official Wolfram LSP clients for [Sublime Text](https://github.com/WolframResearch/Sublime-WolframLanguage) and [Visual Studio Code](https://github.com/WolframResearch/vscode-wolfram).
## Setup
LSPServer depends on [CodeParser paclet](https://github.com/WolframResearch/codeparser), [CodeInspector paclet](https://github.com/WolframResearch/codeinspector), and [CodeFormatter paclet](https://github.com/WolframResearch/codeformatter).
LSPServer and its dependencies are included in Mathematica 13.0 and above.
Install LSPServer paclet and dependencies from the public paclet server:
```
PacletInstall["CodeParser"]
PacletInstall["CodeInspector"]
PacletInstall["CodeFormatter"]
PacletInstall["LSPServer"]
```
[Build and install the LSPServer paclet locally](HowToBuild.md)
## Using LSPServer
99% of users will not need to worry about using LSPServer directly. LSPServer is used internally when an LSP client launches a Wolfram kernel as an LSP server. This all happens in the background.
But it can be useful to run LSPServer when developing a new LSP client.
Create a file named server.wl:
```
Needs["LSPServer`"]
StartServer[]
```
And run from the command-line:
```
brenton@brenton2maclap % WolframKernel -noprompt -run Get\[\"server.wl\"\]
14:03:48.605 $CommandLine: {WolframKernel, -noprompt, -run, Get["server.wl"]}
14:03:48.607
14:03:48.608 $commProcess: StdIO
14:03:48.608
14:03:48.608 $ProcessID: 54603
14:03:48.609
14:03:48.609 $ParentProcessID: 54582
14:03:48.609
14:03:48.609 Starting server... (If this is the last line you see, then StartServer[] may have been called in an unexpected way and the server is hanging.)
14:03:48.610
```
Notice the proper character escapes on the command-line.
The kernel process is blocked waiting on input to its stdin.
Properly formed LSP JSON-RPC can be sent to the kernel, and the kernel would send its response to stdout.
## Troubleshooting
Make sure that the paclets can be found on your system:
```
Needs["LSPServer`"]
```
You may get `LibraryFunction` messages:
```
14:49:15.663 $CommandLine: {/Applications/Mathematica.app/Contents/MacOS/WolframKernel, -noinit, -noprompt, -nopaclet, -nostartuppaclets, -noicon, -run, Needs["LSPServer`"];LSPServer`StartServer["/Users/user/logs/"]}
14:49:15.664
14:49:15.664 $commProcess: StdIO
14:49:15.664
14:49:15.665 $ProcessID: 22400
14:49:15.665
14:49:15.666 $ParentProcessID: 22394
14:49:15.666
14:49:15.667 Directory[]: /private/var/folders/90/4fbnjdqx3f791xb65c02fm2m000bfy/T/Wolfram-LSPServer
14:49:15.667
14:49:15.668 Starting server... (If this is the last line you see, then StartServer[] may have been called in an unexpected way and the server is hanging.)
14:49:15.668
LibraryFunction::version: The version number 7 of the library is not consistent with the current or any previous WolframLibraryVersion.
LibraryFunction::initerr: A nonzero error code 7 was returned during the initialization of the library /Users/user/Library/Mathematica/Paclets/Repository/LSPServer-1.6/LibraryResources/MacOSX-x86-64/LSPServer.dylib.
LibraryFunction::libload: The function GetStartupError_LibraryLink was not loaded from the file /Users/user/Library/Mathematica/Paclets/Repository/LSPServer-1.6/LibraryResources/MacOSX-x86-64/LSPServer.dylib.
14:49:16.129
14:49:16.129 Initialization failed: Failure["LibraryFunctionLoad", <|"Result" -> $Failed|>]
14:49:16.484
14:49:16.485 Language Server kernel did not shutdown properly.
14:49:16.485
14:49:16.487 This is the command that was used:
14:49:16.488 {/Applications/Mathematica.app/Contents/MacOS/WolframKernel, -noinit, -noprompt, -nopaclet, -nostartuppaclets, -noicon, -run, Needs["LSPServer`"];LSPServer`StartServer["/Users/user/logs/"]}
14:49:16.488
14:49:16.489 To help diagnose the problem, run this in a notebook:
Needs["LSPServer`"]
LSPServer`RunServerDiagnostic[{"/Applications/Mathematica.app/Contents/MacOS/WolframKernel", "-noinit", "-noprompt", "-nopaclet", "-nostartuppaclets", "-noicon", "-run", "Needs[\"LSPServer`\"];LSPServer`StartServer[\"/Users/user/logs/\"]"}]
14:49:16.490
14:49:16.490 Fix any problems then restart and try again.
14:49:16.491
14:49:16.492 KERNEL IS EXITING HARD
14:49:16.492
```
This means that LSPServer was built with a newer version of Wolfram System than your system supports.
To fix this, build LSPServer from source with the version of Wolfram System that you will use.
### Server settings
Turn on debug logging from the kernel.
Give a string argument to StartServer[]. This is a directory that kernel logs will be written to.
```
Needs["LSPServer`"];LSPServer`StartServer["/path/to/log/directory/"]
```