是否可以防止純文字 TeX 區塊內的分頁？

Question

這相當於這個問題，但我正在使用 Plain Tex 而不是 LaTeX。例如，假設我有多個這樣的區塊，我想僅\exper{}在以下區塊中的行之前允許分頁符號。

\exper{Stanford Computer Science, Operating Systems}{January 2016 -- March 2016}
\jtitle{Course Assistant}
\sub{
Held office hours to answer student questions
}
\sub{
Graded assignments for coding style and correctness.
}

上面的所有指令都是我為履歷定義的簡單格式化指令。

Answer 1

如果將語法變更為

\exper{Stanford Computer Science, Operating Systems}{January 2016 -- March 2016}{%
\jtitle{Course Assistant}
\sub{
Held office hours to answer student questions
}
\sub{
Graded assignments for coding style and correctness.
}
}

然後你可以把它#4放在\expera中\vbox{...#4...}，這樣就不會破壞了。