Inlang Language Server

Important
This extension is a work in progress and may not be fully functional.

Inlang Language Server brings Inlang and Paraglide message inspection to Zed through LSP:

inlay hints with the preview translation for message references
hover tables with all configured locale values
diagnostics for missing base messages, missing translations, and empty translations
warning diagnostics for message JSON keys with no references
code lenses on message JSON keys with workspace reference counts and Zed reference navigation
an extract-message code action for selected text

The extension discovers project.inlang/settings.json files in the current worktree and reads JSON message files configured through plugin.inlang.json.pathPattern or plugin.inlang.messageFormat.pathPattern.

Note
This project is heavily inspired by opral/sherlock, the VS Code extension for inspecting, previewing, editing, and linting Inlang messages.

The feature set and interaction model intentionally follow Sherlock where Zed's extension and LSP APIs make that possible: inline-style translation previews are implemented as inlay hints, hover context shows locale messages, diagnostics report missing translations, and extract-message support is exposed as a code action.

Supported References

The language server currently detects these common forms:

t("hello_world")
i18next.t("hello_world")
$t("hello_world")
gettext("hello_world")
msg("hello_world")
formatMessage({ id: "hello_world" })
m.hello_world()
m["hello.world"]()
messages.hello_world()

For Paraglide dot calls, Inlang Language Server resolves m.some_key() to either some_key or a dotted message id whose generated identifier is some_key.

Development

Run the checks:

cargo check

Install the repository as a Zed dev extension from Zed's Extensions view. The extension downloads and runs the inlang-language-server npm package through Zed's extension API.

Optional Zed settings:

{
  "lsp": {
    "inlang-language-server": {
      "initialization_options": {
        "previewLocale": "de",
        "maxHintLength": 80
      }
    }
  }
}