我正在使用该memoir课程排版小说，故事中有几个“场景”发生在聊天室里。
我已经创建了一个环境，可以按照我想要的方式设置段落和字体，但仍然有些尴尬。
最小工作示例（使用 xelatex）：
\documentclass[statementpaper,12pt]{memoir}
\usepackage[l2tabu,orthodox]{nag}
\usepackage{xparse}
\usepackage{lipsum}
\newlength{\defaultraggedyrightspace}
\setlength{\defaultraggedyrightspace}{1.85em}
\newlength{\prechatparindent}
\NewDocumentEnvironment{chatroom}{}{
\raggedyright[2.5em]
\setlength{\prechatparindent}{\parindent}
\setlength{\parindent}{0em}
\nonzeroparskip{}
\ttfamily{}
}{
\normalfont{}
\raggedyright[\defaultraggedyrightspace]
\setlength{\parindent}{\prechatparindent}
\traditionalparskip{}
}
\begin{document}
\section*{It was a dark and stormy night}
\lipsum[2-6]
\begin{chatroom}
\textbf{AOL Chat Room}\\
\textbf{The Crash Pad – A Place to Start}
\textbf{OnlineHost}\\
****GreenSky has entered the room.****
\textbf{GreenSky}\\
Hello everyone. I would like to discuss the ethics of war and conquest.
Which chat room would be a good place to do that?
\textbf{Blksnakexxxx}\\
A/S/L?
\textbf{SweetEzcape101}\\
Whta a fukin nerd lol
\textbf{PHaTMoNkEy}\\
r u my social studies teacher? better get back 2 writing my essay 4 ur
class roflmao
\textbf{GreenSky}\\
I am new to using the Internet. I just want some advice.
\textbf{OOo\_KawaiiChica\_oOo}\\
hiiiiii newbie! X3 *glomps you*
\textbf{ILoveMyChevyTruck69}\\
Type 9 if ur a woman with a pic
\textbf{SailorNeptuneRox}\\
Hey GreenSky, my friend hangs out on an IRC channel where they talk
about stuff like that sometimes.
\textbf{SailorNeptuneRox}\\
Check out the \#philosophy channel on the Undernet server.
\end{chatroom}
\section*{It was a bright and sunny day}
\lipsum[5-8]
\end{document}
有时分页符会恰好位于句柄和聊天语句的第一行之间。我特别想避免这种情况。我还希望 LaTeX 能够优先放置分页符之间段落，但是这比句柄后立即的分页符要好一些。
我还想为聊天的“段落”定义一个新命令，以便我可以在我的源代码中获得类似这样的内容：
\chatline[GreenSky]{
Hello everyone. I would like to discuss the ethics of war and conquest.
Which chat room would be a good place to do that?
}
\nopagebreak[4]我认为我可以使用and来改善分页符的位置，\nopagebreak[1]但我不确定具体该怎么做。我尝试了这个，但它并没有阻止位置错误的分页符：
\NewDocumentCommand{\chatline}{om}{\IfValueT{#1}{\nopagebreak[4]\textbf{#1}\\}\nopagebreak[1]#2}