R语言-等待用户输入扫描或读码

I'm trying to get the user to input a few keywords for a query, and in my script I used either scan or readline. I tried it using the R-embeeded script editor (Windows) but when I execute the code, it uses my next lines of script as the standard input. Here is my (part of) scriptI'm trying to get the user to input a few keywo