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  • Topic: Typography, Japan, Japanese writing system
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  • Published : October 13, 2013
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Requirements for Japanese
Document Layout
2006.10.18
Kunio Ohno
Japanese Document Layout
Taskforce of JAGAT(Japan
Association of Graphic Arts
Technology)
2006/10/18

1

Table of Contents



Introduction
Requirements











2006/10/18

Japanese Manuscript Paper
Layout
Unit
Kerning
Hang
Space between Japanese
words and words in Latin
script
Ruby
Warichu
Tate-chu-yoko
Furi-wake
Emphasizing Mark (Kenten)















Underline
Superscript/Subscript (Soeji)
Tab
Column
Footnote, Head-note, Sidenote
Footnote
Side-note
Line-space adjustment
(Kin-to-wari)
Figures and Pictures
Positioning
Guide Mark (Tonbo)
Guide Mark Example

Conclusion

2

Introduction

2006/10/18

3

Japanese document layout



Japanese character size is square.
Japanese document layout is based on the grid type
manuscript paper layout.

2006/10/18

4

Requirements for text layout in
East Asia


Based on Han-Character (East Asian Ideograph)





Difference of font design framework
Square type face vs. ascendant / descendent line based
design

Strong market needs for vertical text layout exist




2006/10/18

Publishing industries and news paper industries stick on
vertical layout
Some educational area requires vertical text layout

5

JAGAT Taskforce


Currently voluntary research project conducted by
JAGAT





Antenna House and Justsystems are involved

Planned to input to W3C’s incubator group
Requirement: Based on JIS X 4051








JIS X 4051:1993 – Horizontal layout
JIS X 4051:1995 – Vertical layout
JIS X 4051:2004 – Updated

Project editors are the core contributor for this taskforce

Plan: align with CSS3 draft in general and add some
new functionality from Japanese market needs
Plan: harmonization with XSL 2.0

2006/10/18

6

Taskforce Members












Hiroyuki Chiba
Junsaburo Edamoto
Hiriji Emoto
Kenichiro Ishino
Tatsuo Kobayashi
Tokushige Kobayashi
Toshi Kobayashi
Osamu Ogasawara
Kunio Ohno
Kenzo Onozawa
Tetsuya Takahashi

2006/10/18

Japan Association of Graphic Arts Technology
Morisawa & Company, Ltd.
Digital Media System Co.,Ltd
Antenna House, Inc.
Justsystem Corporation
Antenna House, Inc.
Japan Editors School
Japan Association of Graphic Arts Technology
Justsystem Corporation
Japan Association of Graphic Arts Technology
Canon System Solutions Inc.

7

Requirements

2006/10/18

8

Japanese Manuscript Paper
Layout



Japanese document layout is based on the grid type manuscript paper layout.
Image area (Hanzura) is specified by character number and line number.
(XSL does not support.)

2006/10/18

Vertical

Horizontal

9

Unit


Q is necessary for Japanese document
layout . (1 Q = 1/4mm = 0.25mm)


XSL 1pt = 1/72in ≒0.3528mm (PostScript Point)



JIS

1pt = 1/72.27in ≒0.3514mm (American Point)



TeX

1pt = 1/72.27in ≒0.3514mm
1bp = 1/72in ≒0.3528mm



2006/10/18

10

Kerning


Punctuation marks are also square. Kerning is required.



Though "punctuation-trim" is described in CSS, that is not sufficient.

2006/10/18

11

Hang


Under the hang rule, period and comma may be located outside the image area (hanzura), which XSL does not support.



In CSS3, "hanging-punctuation" is specified.

2006/10/18

12

Space between Japanese words
and words in Latin script








Though CSS3 can support this by “text-autospace”,
XSL does not support.
In CSS3, "text-autospace" can be applied as follows.
none
ideograph-alpha
ideograph-numeric
ideograph-parenthesis
ideograph-space

2006/10/18

13

Ruby


Though ruby can partly be expressed by of
XSL, this function doesn't satisfy such conditions as line
breaking and justification.



Ruby is also specified in CSS which...
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