add multiline comments

README.md

@@ -26,6 +26,9 @@ Lua-like, but with more minimalism and eventually some syntactic sugars.
 
 ```
 // C style comments
+/*
+	C style multi line comments
+*/
 // No local for variable definitions; the local behavior should be implicit
 x = "foo"
 y = "bar"
@@ -33,6 +36,7 @@ fn add(a, b)
 	return a + b
 end
 echo add(x, y) // Outputs: foobar
+fnVar = fn(x, y, ...) /* do something */ end
 
 if expression and expression2 then
 	res = add(1, 2)

scanner/scanner.go

@@ -59,10 +59,30 @@ func (s *Scanner) NextToken() types.Token {
 		return s.makeToken(types.STAR)
 	case '/':
 		if s.match('/') {
-			// Comment goes until end of line
+			// Single-line comment
 			for s.peek() != '\n' && !s.isAtEnd() {
 				s.advance()
 			}
+			// Recursive call to get the next non-comment token
+			return s.NextToken()
+		} else if s.match('*') {
+			// Multiline comment
+			for !(s.peek() == '*' && s.peekNext() == '/') && !s.isAtEnd() {
+				if s.peek() == '\n' {
+					s.line++
+					s.column = 0
+				}
+				s.advance()
+			}
+
+			if s.isAtEnd() {
+				return s.errorToken("Unclosed multiline comment.")
+			}
+
+			// Consume the closing */
+			s.advance() // *
+			s.advance() // /
+
 			// Recursive call to get the next non-comment token
 			return s.NextToken()
 		}