Forcing smaller line spacing (risking that text overlaps) in XeTeX

Question

I am writing some XeTeX code to display Chinese text with ruby (tone marks, translation or pronunciation) above and below the characters. If on any one line, I have ruby below, and then on the next line I have ruby above another character, the line spacing will automatically be stretched to about 2, even though I have specified 1.5 in the definitions.

Is there any way to forcefully set the line spacing, taking the risk myself that some of the Ruby text might overlap?

Answer 1

Well, in fact it does nothing to do with XeTeX or CJK. Just set \lineskiplimit to -\maxdimen to disable the effect of \lineskip.

Example:

\documentclass{article}
\usepackage{xeCJK}
\setCJKmainfont{SimSun}
\usepackage{ruby}
\renewcommand\rubysep{-0.2ex}
\begin{document}

\fontsize{12}{14.4}\selectfont
\setlength{\lineskiplimit}{-\maxdimen}

文字文字文字文字文字文字文字文字文字文字文字
文字文字文字文字文字文字文字文字文字文字文字
文字文字文字文字文字文字文字文字文字文字文字%
\ruby{文}{wén}\ruby{字}{zì}%
文字文字文字文字文字文字文字文字文字文字文字
文字文字文字文字文字文字文字文字文字文字文字
\end{document}