Werner,

Your work-around and use of non-opverlapping option of ruby resolve  
the problem.  Thank you for explaining the ruby.txt in detail.

Thanks again.

At Aug 24, 2007 6:25 AM, Werner LEMBERG wrote:

>
>> \usepackage[overlap, CJK]{ruby}
>
> You are asking for overlapping ruby.  From ruby.txt:
>
>     o The ruby has a smaller width than its base character:
>
>         The behaviour is identical to an ordinary CJK character.
>
>     o The ruby has a greater width than its base character:
>
>         + Overlapping ruby:
>
>             . If the previous or next character is a CJK character
>               (ordinary or punctuation), insert unbreakable glue
>               between.
>
>             . If the previous or next character is a ruby, handle both
>               ruby as non-overlapping and insert unbreakable glue
>               between.
>
>     [...]
>
>> It seems that it is due to adjusting CJKglue.
>
> The problem is twofold.
>
>   1. Almost all Pinyin syllables have a greater width than the
>      corresponding CJK base glyphs.  Since you increase \CJKglue you
>      shouldn't use the `overlap' option.
>
>   2. The kern value marker emitted by \ruby doesn't handle CJK glyphs
>      properly.  This is a buglet which I have to fix -- I have to
>      introduce a new kern value marker which indicates both ruby and
>      CJK.  As a workaround, extend \ruby as in the code below.
>
> BTW, you don't need `%' since the \ruby macro ends with \ignorespaces
> if option `CJK' of ruby.sty is used.
>
>
>     Werner
>
>
> ======================================================================
>
>
> \documentclass[12pt]{article}
> \usepackage{CJK}
> \usepackage[CJK]{ruby}
> \usepackage{pinyin}
>
>
> \DeclareRobustCommand{\Ruby}[2]{%
>   \ruby{#1}{#2}%
>   \kern -1sp
>   \kern 1sp}
>
> \renewcommand{\baselinestretch}{1.5}   % ~ double space
> \renewcommand{\rubysep}{-1ex}          % compensate \baselinestretch
> \renewcommand{\CJKglue}{\hskip 6pt plus 0.08\baselineskip}
>
>
> \begin{document}
> \begin{CJK}{UTF8}{bsmi}
> \Ruby{以}{\yi3}
> \Ruby{前}{\qian2}
> \Ruby{在}{\zai4}
> \Ruby{我}{\wo3}
> \Ruby{六}{\liu4}
> \Ruby{歲}{\sui4}
> \Ruby{的}{\de5}
> \Ruby{時}{\shi2}
> \Ruby{候}{\hou4}
> ,
> \Ruby{我}{\wo3}
> \Ruby{在}{\zai4}
> \Ruby{一}{\yi4}
> \Ruby{本}{\ben3}
> \Ruby{書}{\shu1}
> \Ruby{上}{\shang4}
> \Ruby{看}{\kan4}
> \Ruby{到}{\dao4}
> \Ruby{一}{\yi4}
> \Ruby{張}{\zhang1}
> \Ruby{非}{\fei1}
> \Ruby{常}{\chang2}
> \Ruby{駭}{\hai4}
> \Ruby{人}{\ren2}
> \Ruby{的}{\de5}
> \Ruby{圖}{\tu2}
> 。
> \end{CJK}
> \end{document}


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