Handling of space between Kanji and non-Kanji characters.


1. Shibuaki or Yonbuaki (四分あき)



         <Japanese Text> English word <Japanese Text>
                        ^            ^
                    This point   This point 

    This space is called "Shibuaki" which has a width of a quarter of a kanji
    font width. It is used only between Kanji and non-Kanji characters.
    (between Kanji and Kanji only stretchable glue is used; between
    ASCII and ASCII ordinary space.)


2. Yakumono(約物)

    Here are the rules how and where to use Shibuaki.

2.1 Yakumono for ASCII characters

   rules:

    0   No shibuaki between previous kanji character and the ASCII
        character, and between next kanji character and the ASCII
        character.

          <Kanji character><ASCII character><Kanji Character>

    1   Shibuaki space only between previous kanji character and the
        ASCII character.

          <Kanji character> <ASCII character><Kanji Character>
                           ^            
                        shibuaki

    2   Shibuaki space only between next kanji character and the ASCII
        character.

          <Kanji character><ASCII character> <Kanji Character>
                                            ^            
                                         shibuaki

    3   Shibuaki spaces between kanji characters and ASCII word.

          <Japanese Text> English word <Japanese Text>
                         ^            ^
                      shibuaki     shibuaki


   Rule 3 is always used by all printable ASCII characters without
   the following yakumono ASCII characters.

   [This is data from ASCII-Nihongo TeX.]

   % ASCII yakumono characters and the corresponding rules
    ( 1
    ) 2
    [ 1
    ] 2
    ` 1
    ' 2
    ; 2
    , 2
    . 2

2.2 Yakumono for kanji characters

   rules:

    0   No shibuaki space between previous ASCII character and the kanji
        character, and between next ASCII character and the kanji
        character.

          <ASCII character><Kanji character><ASCII character>

    1   No shibuaki space between previous ASCII character and the kanji
        character.

          <ASCII character><Kanji character> <ASCII character>
                                            ^            
                                         shibuaki

    2   No shibuaki space between next ASCII character and the kanji
        character.

          <ASCII character> <Kanji character><ASCII character>
                           ^            
                        shibuaki

    3   Shibuaki spaces between kanji character and ASCII characters

          <ASCII character> <Kanji character> <ASCII character>
                           ^                 ^
                        shibuaki          shibuaki

   Rule 3 is always used by all kanji characters without the following
   yakumono kanji characters.

   [This is data from ASCII-Nihongo TeX.]

   % Kanji yakumono characters and the corresponding rules
     、  1
     。  1
     ，  1
     ．  1
     ；  1
     ？  1
     ）  1
     （  2
     ］  1
     ［  2
     ｝  1
     ｛  2
     ‘  2
     ’  1
     “  2
     ”  1
     〔  2
     〕  1
     〈  2
     〉  1
     《  2
     》  1
     「  2
     」  1
     『  2
     』  1
     【  2
     】  1
     ―  0
     〜  0
     …  0
     ￥  0
     °  1
     ′  1
     ″  1




Reference: "Nihongo TeX technical book I"   ASCII co.
           日本語TeXテクニカルガイド I    アスキー出版局
                                    2200 yen. 


Version 1.0B1                  written by tanaka3@ifos.se.fujitsu.co.jp