What is the system that generates text about?

[discountnapoleandynamite]

Hello, I have an idea for a system. There will be specific texts in the draft and the user will be able to create a page by selecting these texts and adding them in the way they want. Also, within these texts, there will be specific keywords (such as names) that need to be changed, and the user will be able to edit them. Afterwards, they can print out the draft they have created. In which languages can such a system be developed?