¶Languages & LSP

¶Syntax highlighting

e uses tree-sitter for fast, accurate syntax highlighting. Supported languages include:

Rust · Python · JavaScript · TypeScript · Go · C / C++ · JSON · TOML · PHP · HTML · CSS · Blade · Vue · Svelte · Markdown · Shell

The language is detected from the file extension (and a few special names, like Cargo.lock and *.blade.php).

¶Language Server Protocol

When a language server is available on your PATH, e launches it automatically and provides:

• Diagnostics — errors and warnings shown inline (squiggles) and in the problems panel.
• Completion — context-aware suggestions (⌘Space to trigger manually).
• Hover — type and documentation popups (F1).
• Go to definition (F12) and find references (⇧F12).
• Document & workspace symbols (⌘⇧O).
• Formatting — on save, or via the "Format Document" command.
• Rename and code actions (where the server supports them).
• Signature help — parameter hints while typing a call.
• Inlay hints — inline type and parameter-name hints from the language server.

¶Supported servers

See Installation for install commands.

A different server is launched per language, so a mixed project (e.g. PHP + TypeScript) gets full support for each.

¶Diagnostics

Errors and warnings appear as coloured squiggles under the code, with counts in the status bar (⨯ errors ⚠ warnings).

¶Problems panel

The workspace problems panel collects every diagnostic across the project, grouped by file. Click an entry to jump straight to the issue.

¶Completion, snippets & signatures

• Even without a language server, built-in completion offers language keywords, identifiers from the open file, and (for PHP/Blade) Laravel facades and Blade directives.
• Framework-aware completion: Flux UI components (<flux:…>), Livewire wire: directives, Tailwind utility classes (inside class="…"), and Vue/Svelte directives.
• Completion combines LSP suggestions with built-in snippets (per-language templates) and, for Laravel projects, helper completions.
• Accepting a snippet places the caret at the first placeholder.
• Define your own snippets in config.json under snippets (per language): "snippets": { "php": [ { "prefix": "dd", "body": "dd($0);" } ] }.
• Signature help shows the active parameter as you type arguments.

¶Bracket matching

The bracket matching the one next to the caret is highlighted, making it easy to see scope boundaries.