Semantic Web Language Server

This repo includes the source code for the semantic web language server. The language server provides IDE like functionality for semantic web languages, including Turtle, JSON-LD and SPARQL.

Documentation

• lsp-core
• lang-turtle
• lang-jsonld
• lang-sparql
• swls

Features

Diagnostics

• Syntax diagnostics
• Undefined prefix diagnostics
• SHACL shape diagnostics

Completion

• Prefix completion (just start writing the prefix, foa completes to foaf: and adding the prefix statement)
• Property completion (ordered according to domain)
• Class completion (when writing the object where the prediate is a)

Hover

• Shows additional information about the entities like class

Rename

• Rename terms local to the current file

Formatting

• Format Turtle

Highlighting

• Enables semantic highlighting

Use the LSP

Currently a fluwent install is possible for NeoVim and VSCode. However the language server protocol enables swift integration into other editors.

VS Code

Install the semantic web lsp extension (vscode or open-vscode). The extension starts the lsp from WASM and starts the vscode LSP client.

NeoVim

To use the LSP you will always have to install the binary. So do that first:

cargo install --git https://github.com/SemanticWebLanguageServer/swls --bin swls

Or locally

git clone https://github.com/SemanticWebLanguageServer/swls
cargo install --path swls

Configure the LSP in NeoVim.

#  Add a config to lspconfig.configs
local configs = require("lspconfig.configs")

configs.jsonld = {
  default_config = {
    cmd = { 'swls' },
    filetypes = { 'jsonld', 'turtle', 'sparql' },
    root_dir = require("lspconfig.util").find_git_ancestor,
    single_file_support = true,
    init_options = {},
  }
}

# Start the LSP
local lspconfig = require("lspconfig")

lspconfig.jsonld.setup {
  on_attach = M.on_attach,
  capabilities = M.capabilities,
}

Screenshots

Undefined prefix	Shape violation

Complete Class	Complete Property