Function ParseLineCursor

internal/loop/cursor_parser.go:159–189

ParseLineCursor parses a single line of Cursor CLI stream-json NDJSON and returns an Event. If the line cannot be parsed or is not relevant, it returns nil.

(line string)

// ParseLineCursor parses a single line of Cursor CLI stream-json NDJSON and returns an Event.
// If the line cannot be parsed or is not relevant, it returns nil.
func ParseLineCursor(line string) *Event {
	line = strings.TrimSpace(line)
	if line == "" {
		return nil
	}

	var ev cursorEvent
	if err := json.Unmarshal([]byte(line), &ev); err != nil {
		return nil
	}

	switch ev.Type {
	case "system":
		if ev.Subtype == "init" {
			return &Event{Type: EventIterationStart}
		}
		return nil

	case "assistant":
		return parseCursorAssistantMessage(ev.Message)

	case "tool_call":
		return parseCursorToolCall(ev.Subtype, ev.ToolCall)

	case "user", "result":
		return nil

	default:
		return nil
	}
}

func parseCursorAssistantMessage(raw json.RawMessage) *Event {
	if raw == nil {