我正在尝试防止环境内部的物品出现难看的损坏\startcolumns...\stopcolumns：
\setuppapersize[letter]
\setuplayout
[ topspace=0.5in
, height=10in
, backspace=0.75in
, width=7in
]
\setupcolumns[n=3,separator=rule,balance=yes,distance=0.5in]
\define\eachtestpar{\EveryPar{%
%\clubpenalties 5 10000 10000 10000 100 0%
%\widowpenalties 5 10000 10000 10000 100 0%
\keeplinestogether{20}%
}}
\defineitemgroup[test]
[inner=\eachtestpar]
\starttext
\startcolumns
\startitemize
\item One
\item Two
\item Three
\item Four
\item Five\blank[medium]
Thus, I came to the conclusion that the designer of a new system must not only be the...
\item Six
\item Seven
\stopitemize
\stopcolumns
\blank[5*big]
\startcolumns
\startitemize
\item One
\item Two
\item Three
\item Four
\item Five\blank[medium]
Thus, I came to the conclusion that the designer of a new system must not only be the...
\startitemize
\item One
\item Two
\item Three
\stopitemize
\item Six
\item Seven
\stopitemize
\stopcolumns
\stoptext
我不想完全阻止中断，但我确实希望惩罚优先于列平衡。不幸的是，\EveryPar使用和只会减少段落和嵌套列表之间的空间（即更丑陋）。\clubpenalties\widowpenalties\keeplinestogether
具体来说：不应出现少于 5 行或 5 个嵌套项目的中断；相反，列应该不平衡。
答案1
首先，不需要换行itemize。columns环境itemize开箱即用地支持列。
为了将线条牢固地保持在一起，您可以将物品内容包装进去\start...\stopitem并将其打包成\vtop。
\setuppapersize[letter]
\setuplayout
[topspace=0.5in,
height=10in,
backspace=0.75in,
width=7in]
\unexpanded\long\def\vtopitem#1\stopitem{%
\vtop{%
\rightskip=\leftskip\relax
\leftskip=0pt\relax
#1%
}%
\stopitem
}
\starttext
\startitemize[columns][n=3,command=\vtopitem]
\startitem One \stopitem
\startitem Two \stopitem
\startitem Three \stopitem
\startitem Four \stopitem
\startitem Five\blank[medium]
Thus, I came to the conclusion that the designer of a new system must not only be the...
\stopitem
\startitem Six \stopitem
\startitem Seven \stopitem
\stopitemize
\blank[5*big]
\startitemize[columns][n=3,command=\vtopitem]
\startitem One \stopitem
\startitem Two \stopitem
\startitem Three \stopitem
\startitem Four \stopitem
\startitem Five\blank[medium]
Thus, I came to the conclusion that the designer of a new system must not only be the...
\startitemize
\item One
\item Two
\item Three
\stopitemize
\stopitem
\startitem Six \stopitem
\startitem Seven \stopitem
\stopitemize
\stoptext
