do not parse input, just read all

src/adapt.go

@@ -65,90 +65,85 @@ func adapt(ctx context.Context, config Config, conn net.Conn) error {
 	return io.EOF
 }
 
-func readMessage(reader *bufio.Reader) ([]byte, []any, error) {
+func readMessage(reader *bufio.Reader) ([]byte, error) {
 	w := bytes.NewBuffer(nil)
-	arr, err := readMessageTo(w, reader)
-	return w.Bytes(), arr, err
+	err := readMessageTo(w, reader)
+	return w.Bytes(), err
 }
 
-func readMessageTo(w io.Writer, reader *bufio.Reader) ([]any, error) {
+func readMessageTo(w io.Writer, reader *bufio.Reader) error {
 	w2 := bufio.NewWriter(w)
 	defer w2.Flush()
-	arr, err := _readMessageTo(w2, reader)
+	err := _readMessageTo(w2, reader)
 	if err != nil {
-		return nil, err
+		return err
 	}
-	return arr, w2.Flush()
+	return w2.Flush()
 }
 
-func _readMessageTo(w io.Writer, reader *bufio.Reader) ([]any, error) {
+func _readMessageTo(w io.Writer, reader *bufio.Reader) error {
 	firstLine, _, err := reader.ReadLine()
 	if err != nil {
-		return nil, err
+		return err
 	}
 	firstLine = bytes.TrimSuffix(firstLine, []byte("\r\n"))
 	if len(firstLine) == 0 {
-		return nil, nil
+		return nil
 	}
 	fmt.Fprintf(w, "%s\r\n", firstLine)
 
 	switch firstLine[0] {
 	case '+': // simple string, like +OK
-		return []any{string(firstLine[1:])}, nil
+		return nil
 	case '-': // simple error, like -message
-		return []any{string(firstLine)}, nil
+		return nil
 	case ':': // number, like /[+-][0-9]+/
-		firstLine = bytes.TrimPrefix(firstLine[1:], []byte("+"))
-		n, err := strconv.Atoi(string(firstLine))
-		if err != nil {
-			return nil, fmt.Errorf("num not a num: %q: %w", firstLine, err)
-		}
-		return []any{n}, err
+		return err
 	case '$': // long string, like $-1 for nil, like $LEN\r\nSTRING\r\n
 		if firstLine[1] == '-' {
-			return []any{nil}, nil
+			return nil
 		}
 		firstLine = bytes.TrimPrefix(firstLine[1:], []byte("+"))
 		n, err := strconv.Atoi(string(firstLine))
 		if err != nil {
-			return nil, fmt.Errorf("num not a num: %q: %w", firstLine, err)
+			return fmt.Errorf("num not a num: %q: %w", firstLine, err)
 		}
-		//log.Printf("reading %v+2 bytes for bulk string", n)
 		nextLine := make([]byte, n+2)
 		nAt := 0
 		for nAt < n+2 {
 			nMore, err := reader.Read(nextLine[nAt:])
 			if err != nil {
-				return nil, fmt.Errorf("couldnt read %v more/%v bytes for long string: %w", n+2-nAt, n+2, err)
+				return fmt.Errorf("couldnt read %v more/%v bytes for long string: %w", n+2-nAt, n+2, err)
 			}
 			nAt += nMore
 		}
 		fmt.Fprintf(w, "%s", nextLine)
-		return []any{string(nextLine)}, err
-	case '*': // array, like *-1 for nil, like *4 for [1,2,3,4]
+		return err
+	case '*', '%': // *=array %=map, like *-1 for nil, like *4 for [1,2,3,4]
 		n, err := strconv.Atoi(string(firstLine[1:]))
 		if err != nil {
-			return nil, fmt.Errorf("arr not a num: %q: %w", firstLine, err)
+			return fmt.Errorf("arr not a num: %q: %w", firstLine, err)
 		} else if n == -1 {
-			return nil, nil
+			return nil
+		}
+		if firstLine[0] == '%' {
+			n *= 2
 		}
-		var result []any
 		for i := 0; i < n; i++ {
-			more, err := _readMessageTo(w, reader)
+			err := _readMessageTo(w, reader)
 			if err != nil {
-				return nil, err
+				return err
 			}
-			result = append(result, more...)
 		}
-		return result, nil
+		return nil
 	case '_': // nil
-		return nil, nil
+		return nil
 	case '#': // boolean, like #t or #f
-		return []any{firstLine[1] == 't'}, nil
+		return nil
 	case ',': // double
-		log.Fatal("not impl")
+		return nil
 	}
 
 	log.Fatalf("not impl: %q", firstLine)
-	return nil, nil
+	return nil
 }

src/config.go

@@ -73,7 +73,7 @@ func NewConfig(ctx context.Context) (Config, error) {
 					v.Close()
 					return nil
 				}
-				if raw, _, err := readMessage(bufio.NewReader(v)); err != nil {
+				if raw, err := readMessage(bufio.NewReader(v)); err != nil {
 					log.Printf("! failed read hello %q: %v", forward, err)
 					v.Close()
 					return nil