Syntax highlighting and Language Server Protocol support for the Knot programming language.
Features
-
Syntax highlighting — Full tokenization for
.knotsource files:- Keywords (
func,class,enum,if,match,for,while,import, etc.) - Primitive types (
I8–I64,U8–U64,F32,F64,String,Bool,Void) - String literals (double-quoted with escapes, single-quoted raw, backtick raw)
- Numeric literals (decimal, hex
0x, binary0b, octal0o, float with suffixes) - Comments (
//line,/* */block) - Operators (
->,=>,++,+=,==,!=,??,..,::, etc.) - Function / class / enum name highlighting
- Wrap decorators (
@name)
- Keywords (
-
Language Server Protocol — Requires a knot compiler binary on
PATH:- Real-time diagnostics (parser + semantic analysis errors and warnings)
- Code completion (keywords and built-in types)
- Hover information
-
Language configuration — Bracket matching, auto-closing pairs, comment toggling
Requirements
A knot compiler binary that supports the lsp subcommand. Build it from source:
git clone https://github.com/knot-lang/knot
cd knot
cargo build
Extension Settings
| Setting | Default | Description |
|---|---|---|
knot.lsp.path |
"knot" |
Path to the knot compiler binary |
Syntax highlighting works without the compiler. The LSP features (diagnostics, completion, hover) require a knot binary that supports knot lsp.
Known Issues
- LSP server restart is disabled; if the compiler crashes, reload the window (
Ctrl+Shift+P→Developer: Reload Window). - Completion list is currently a static keyword set (not context-aware).
Release Notes
0.0.1
Initial release: syntax highlighting + LSP (diagnostics, completion, hover).