The actual JuliaSyntax.Tokenize lexer — compiled from Julia's
optimized IR to WasmGC (no manual port; unicode tables run in-wasm via
UnicodeNext). Type Julia code below; each token gets the next color in a
light palette, so every boundary is visible. Hover a token for its kind.
New: the full parser demo —
the complete recursive-descent parser in wasm, with a live parse tree.