Ｈi Stefan, nice to meet you. I don't know much about CJK fonts. I'll try to give you some answer. Regards, On 06/14/2013 03:07 PM, Stefan Knorr wrote:

Hi all, Zao,

As an introduction: I am part of the documentation team & working on the (hopefully future) design of SUSE's manuals.

I researched CJK fonts a bit and how to best deal with them, but a few questions remained.

#1 I saw that e.g. Microsoft uses different default fonts for Chinese/simplified, Chinese/traditional, Japanese & Korean text. I don't quite understand this, as there are many fonts which seem to cover the whole spectrum of CJK characters (like WenQuanYi Micro Hei [1], which I am currently using). Why? Are there common characters (i.e. Chinese traditonal characters) that are written differently between countries? (Or, in other words, is it appropriate to confront Japanese, Korean or RoC users with fonts designed for mainland China?)

CJK are 4 different languages, so it is true that different fonts are selected as default fonts. Yes, UFT-8 covers also more languages, so for example chinese font (encoding UTF-8) could contains Japanese and Korean character. traditional chinese has own fonts because it uses different characters than simplified chinese.

#2 I learned that I should use a Hei Ti/Kei Ti font instead of making text bold/italic [2]. * How do Hei Ti and Kei Ti styles relate to Ming fonts? What are the differences?

HeiTi(黑体) is some how like bold fonts, but I would say it is more a style, it is not related to font properties. KaiTi (楷体) is just another fonts. So for both Chinese we can use same style (fonts) like HeiTi and KaiTi, but they are still different characters. Ming is a beautifl font, it has own style.

* Since my chosen font, WQY Micro Hei is already a Hei font (I would assume), what script types would I need to use instead for bold/italic?

　Actually HeiTi looks already bold, so we think that is a property of Heiti which is not correct, you can even format the HeiTi to italic bold :) but normally you can use HeiTi for simplified Chinese as default, MingTi as default for traditional Chinese.

* What kind of font is considered most readable? (I learned e.g. that in Arabic countries the more geometric Kufic script is often considered to be badly readable.)

heiti or mingti.

* I learned that Japanese supports "emphasis lines" and "emphasis dots". Do these work in left-to-right text, too (I have only seen an example in top-to-bottom style)? Do these features exist for Chinese, too?

Yes, this is special CJK-feature, the characters can be turned for 90°, so do dot lines. Normally we don't use them for documentation in software. Mostly they are used in Newspapers (in Japan) and some old style books like poem or novel.

Thanks in advance, Stefan.

[1] http://wenq.org/wqy2/index.cgi [2] http://www.njstar.com/cms/support/njstar-chinese-wp/how-come-i-can-not-use-b...

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Hi, Stefan, On 06/14/2013 03:07 PM, Stefan Knorr wrote:

#1 I saw that e.g. Microsoft uses different default fonts for Chinese/simplified, Chinese/traditional, Japanese & Korean text. I don't quite understand this, as there are many fonts which seem to cover the whole spectrum of CJK characters (like WenQuanYi Micro Hei [1], which I am currently using). Why? Are there common characters (i.e. Chinese traditonal characters) that are written differently between countries? (Or, in other words, is it appropriate to confront Japanese, Korean or RoC users with fonts designed for mainland China?)

1. Most of Japanese/Korean chars are evolved from Traditional Chinese(and there're still some left unchanged nowadays). eg: あ in Japanese was 安 in Chinese. They looks quite different now, but あ was a TC handwritten font a thousand year ago(They even had similar pronounciations). 2. In 1950s, PRC released a national standard to simplify Traditional Chinese in Mainland China. But RoC/HongKong/Macau didn't. After so many years, Mainland Chinese can still read Traditional Chinese (although they look weird to them), but Simplified Chinese are totally new to those people who never received SC education. So yes, they're from the same origin, but common characters are written differently now. UTF-8 do cover them all, but commerical OS didn't produce fonts itself. Microsoft just buy fonts from different font companies. Font companies located in different countries have no motivation to cover UTF-8. eg: if you want to sell a font in Mainland China, you just need to cover about 20000 chars, but a UTF-8 font needs 1500000+ fonts. Chinese is a script language, if you want to make a char, you have to design it(costs money). There're common strokes, but simple combination looks ugly. And there's still no open source project that have so much resources to cover CJK. WQY solves the problem to some extent, but it just combines strokes which may look ugly to non-SC users. As I know, there's no Japanese contributors for that project. So it's making Japanese/Korean font in a Chinese-oriented view.

#2 I learned that I should use a Hei Ti/Kei Ti font instead of making text bold/italic [2]. * How do Hei Ti and Kei Ti styles relate to Ming fonts? What are the differences?

Let me unify them for you. HeiTi is sans-serif, KeiTi is serif. Ming fonts are originated from Japanese Mincho font, a serif font. Actually, they're just different sayings: In RoC, they call sans-serif fonts "Zen Hei", serif fonts "Ming". In PRC, we call sans-serif fonts "Hei Ti", serif fonts "Kai Ti(Kei Ti)" or "Song Ti". So the only difference between those sayings may be: Ming usually covers Traditional Chinese chars in a serif style. Zen Hei usually covers Traditional Chinese in a sans-serif style. Kei Ti/Song Ti usually covers Simplified Chinese in a serif style. Hei Ti usually covers Simplified Chinese in a sans-serif style. It depends on which company designed the font. eg: a Mainland Chinese company may design a "Hei Ti (TC)" font which can also be called "Zen Hei" and actually is sans-serif. Chinese (Maybe CJK) had no sans-serif fonts, companies produce such fonts just for better screen display. In print material, we use serif fonts(Song Ti). Chinese (Maybe CJK) had no bold style, eg: 齷, if you make this char bold, it's just a mess. Chinese is a square-style font, you can write some strokes italic, but if you write the whole char italic, we just call it "ugly". In history, such writing style indicates "no integrity".

* Since my chosen font, WQY Micro Hei is already a Hei font (I would assume), what script types would I need to use instead for bold/italic?

Yes, WQY is a sans-serif font. there's no serif in it. For screen display, you can mix sans-serif (WQY) and serif Chinese(eg: WQY Bitmap Song) to make them look different. For printing, such mix may look ugly. So I suggest we just use different size of the same font to make titles/sections, and different fonts for screen display/printing.

* What kind of font is considered most readable? (I learned e.g. that in Arabic countries the more geometric Kufic script is often considered to be badly readable.)

It depends. For screen display, sans-seirf Chinese; for printing, serif Chinese.

* I learned that Japanese supports "emphasis lines" and "emphasis dots". Do these work in left-to-right text, too (I have only seen an example in top-to-bottom style)? Do these features exist for Chinese, too?

In history, Chinese writes from top right to bottom right (a line), then beside that line...until top left to bottom left. But now (especially on computer), we just write from left to right and top to bottom. These features exist for Chinese, no matter how you write. Greetings Marguerite -- To unsubscribe, e-mail: opensuse-doc+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse-doc+owner@opensuse.org

Hi, Stefan, On Wed, Jun 19, 2013 at 9:27 PM, Stefan Knorr wrote:

Hm, the problem I have is: what about e.g. menu items or product names, etc.? Should I just use the normal font there and hope that people "get it"?

There're a few ways: 1. use serif font for menu items in a sans-serif env, and sans-serif font in a serif env; 2. use quotes for them,eg: open "kickoff launcher" - "Web Browsers" - "Chromium" 3. use different colors/text backgrounds for them like those in Github. (anyway we css-ed them, right?) I perfer the 2 or 3 choice. :-) Marguerite -- To unsubscribe, e-mail: opensuse-doc+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse-doc+owner@opensuse.org