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Re: [css-writing-modes-3] Error in Example 17 (<date>2010年2月23日</date>), §9.1.3.1 Full-width Characters

From: Gérard Talbot <www-style@gtalbot.org>
Date: Sun, 10 Sep 2017 12:09:14 -0400
To: Elika Etemad <fantasai.lists@inkedblade.net>
Cc: W3C www-style mailing list <www-style@w3.org>
Message-ID: <959503f204d6f67f9d356f2c03f3f3e9@gtalbot.org>
Le 2017-09-08 18:49, fantasai a écrit :
> On 05/28/2016 07:07 PM, Gérard Talbot wrote:
>> Elika, Koji,
>> 
>> I think there is an error in
>> 
>> https://www.w3.org/TR/2015/CR-css-writing-modes-3-20151215/#text-combine-fullwidth
>> 
>> which is not easily noticeable and specifically regarding the way the 
>> "23" should be displayed.
>> 
>> Please load
>> 
>> http://www.gtalbot.org/BrowserBugsSection/CSS3WritingModes/Example17.xht
>> 
>> into a recent version of Firefox (say, 49.0a1 buildID=20160528030208) 
>> or Chrome (say, version 52.0.2743.10).
>> 
>> The spec uses the right-most column when it should use the middle 
>> column.
>> 
>> Example 17 could also use a bigger font-size so that this would help 
>> understanding of the example.
> 
> The spec uses the correct codepoints in the example, it's
> just that the font does not make this very obvious. I've
> changed the spec to specify MS Gothic, which will make it
> more obvious for those systems that have it installed. I'm
> not familiar enough with other CJK fonts to know if there
> are other appropriate options that are commonly installed
> on Linux/Mac/Windows systems.
> 
> ~fantasai


Then I suggest to add TakaoPGothic for Linux system.

On Ubuntu 16.04 and higher, the font TakaoPGothic is used to display the 
"23" in the test; the font TakaoPGothic
https://packages.ubuntu.com/xenial/fonts-takao-pgothic
comes from the installed by default (component is "main", not 
"universe") from the package
https://packages.ubuntu.com/source/xenial/fonts-takao

On Mac OS X, I suggest "Hiragino Kaku Gothic ProN" .
https://bugzilla.mozilla.org/show_bug.cgi?id=1383584#c6

Default CJK font under Ubuntu and Mac OS X for Firefox:
https://bug1383584.bmoattachments.org/attachment.cgi?id=8889237
https://bug1383584.bmoattachments.org/attachment.cgi?id=8891275

The font-family declaration would be:

pre
   {
     (...)
     font-family: "TakaoPGothic", "Hiragino Kaku Gothic ProN", "MS 
Gothic", serif;
   }

which should be perfect for Firefox on Linux/Mac/Windows systems and 
presumably also for Chrome. Regarding Edge 15+, I have no idea.

- - - - - - -

When I look at example 17 in

https://www.w3.org/TR/2015/CR-css-writing-modes-3-20151215/#text-combine-fullwidth

and if I text-select/highlight the

2
0
1
0
年
2
月
23
日

run of text, I expect the "23" to be as wide as the "月" and other glyphs 
but it is not.

Gérard
Received on Sunday, 10 September 2017 16:09:39 UTC

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