update built-in examples to use newly introduced syntax

crates/haku/src/parser.rs

@@ -603,29 +603,19 @@ fn is_prefix_token((kind, spaces): (TokenKind, Spaces)) -> bool {
 }
 
 fn prefix(p: &mut Parser) -> Closed {
-    let (kind, spaces) = p.peek_with_spaces();
-    match kind {
+    match p.peek() {
         TokenKind::Ident => one(p, NodeKind::Ident),
         TokenKind::Tag => one(p, NodeKind::Tag),
         TokenKind::Number => one(p, NodeKind::Number),
         TokenKind::Color => one(p, NodeKind::Color),
         TokenKind::LBrack => list(p),
 
-        TokenKind::Minus if spaces.pair() == (true, false) => unary(p),
+        TokenKind::Minus => unary(p),
         TokenKind::Not => unary(p),
         TokenKind::LParen => paren(p),
         TokenKind::Backslash => lambda(p),
         TokenKind::If => if_expr(p),
 
-        TokenKind::Minus if spaces.pair() == (false, true) => {
-            let span = p.span();
-            p.emit(Diagnostic::error(
-                span,
-                "`-` operator must be surrounded by an equal amount of spaces",
-            ));
-            p.advance_with_error()
-        }
-
         _ => {
             assert!(
                 !is_prefix_token(p.peek_with_spaces()),

crates/haku/src/token.rs

@@ -28,8 +28,6 @@ pub enum TokenKind {
     Greater,
     GreaterEqual,
     Not,
-    Dot,
-    Pipe,
 
     // Punctuation
     Newline,
@@ -42,6 +40,8 @@ pub enum TokenKind {
     Colon,
     Backslash,
     RArrow,
+    Dot,
+    Pipe,
 
     // Keywords
     Underscore,