115374 - Can not display accent characters properly on Win98-Simp. Chinese

Status: VERIFIED FIXED

(Core :: Internationalization, defect)

Description

[Yuying Long]

Build: 12-14 trunk build / Win98 Simplfied Chinese

Steps:
1. Launch browser and go http://fr.yahoo.com
2. Check the charset by going Edit | Character Coding, it marked as iso-8859-1
which is correctly.

Result:
Those accent characters are not display properly, they are either can not be
displayed or display as sort of kanji (chinese) face.  Changing auto-detect
options could not correct the wrong display.

Note: the page is displayed fine on IE.

Comment 1

[Yuying Long]

Attachment: Screen shot for the display problem

Comment 2

[Frank Tang]

shanjian- it seems we are using the A version on Chinese and Korean Win95/98
also. I think we should not do so and only limited such approach for Japanese
Win95/98. The reason is Japanese window do NOT do font association but Chinese
and Korean window does. 

Comment 3

[Shanjian Li]

We only use A version when GetACP return 932 (shift-JIS). It might be a different
problem. sigh...

Comment 4

[Frank Tang]

ylong, this only happen to chinese and korean system (win 95 and win 98) right ?

shanjian- read my early research notes on 
http://people.netscape.com/ftang/europtype.html
That is what I wrote 4 years ago and many thing changed. not sure it is related
or not 

Comment 5

[Frank Tang]

also, I remember some one told me long time ago there are a api way to turn off
the font association on C and k version of Win95/98 by using a undocumented
option flag.

Comment 6

[Frank Tang]

in addition to the comment above- the API I talk about only affect that
particular application. The registry hack will impact the whole system. 

Comment 7

[Frank Tang]

some infor about "Font Association" are described in 
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/vbcon98/html/vbconfontdisplayprintconsiderationsindbcsenvironment.asp

see http://support.microsoft.com/default.aspx?scid=kb;EN-US;q142607 :
Extra set for Chinese PRC locale (GB or GBK Code)
This set includes the following features: 
* Turning on/off the system default Font Association. For certain English
applications, turning off the Font Association is necessary to prevent High ANSI
characters (for example, smart quotes) from displaying as Chinese characters.

also 
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dnintl/html/s24b6_j.asp


ok, here is the trick
http://support.microsoft.com/default.aspx?scid=kb;EN-US;q171153

HOWTO: Display Graphic Chars on Chinese & Korean Windows (Q171153)
The information in this article applies to:

    * Microsoft Win32 Software Development Kit (SDK), used with:
          * Microsoft Windows 95
          * the operating system: Microsoft Windows NT
          * the operating system: Microsoft Windows 2000



SUMMARY

When an application tries to display extended ANSI (above Hex 80, graphic
characters like double dagger, curly quotes, and etc.) characters on Chinese and
Korean Windows 95 or Windows NT, these characters are actually displayed as
double-byte characters.

MORE INFORMATION

For example, under Windows 95 Korean version, when you select the Times New
Roman font, a word processor tries to display English text with curly quotes. As
a result, the system displays Korean characters instead of curly quotes. The
reason is that these extended area characters are also used as lead-byte for
double-byte character sets.

To display the extended ANSI character correctly on Chinese and Korean Windows
95 or Windows NT, the Font Association of the system should be turned off. By
default, Font Association is always on. To turn off the Font Association in your
application, use CreateFontIndirect() with lfClipPrecision in LogFont set as
0x40. This doesn't have any effect on non- Font Association system.

...
If you use Japanese Windows NT and Windows 95, you do not need to follow the
methods discussed above. They are already enabled to display extended ANSI
characters. Japanese Windows 95 doesn't have the Associated CharSet key and
Japanese Windows NT 4.0 has the Associated CharSet key defaulted to "no".

Comment 8

[Frank Tang]

Attachment: experimental patch

Comment 9

[Frank Tang]

I have not test this patch yet. 

Comment 10

[Frank Tang]

yokoyama: can you reproduce the origional problem on your Chinese Win 2K ?

Comment 11

[Yuying Long]

I don't see this on Chinese W2k.

Comment 12

[Roy Yokoyama]

I guess ylong answered your question, frank.
Anything else you want me to do?

Comment 13

[Frank Tang]

could also cause 88496

Comment 14

[Frank Tang]

*** Bug 88496 has been marked as a duplicate of this bug. ***

Comment 15

[Frank Tang]

I try the patch on sc win98. And we confirm that patch fix the problem. 
shanjian, can you r= that ?

Comment 16

[Shanjian Li]

Comment on attachment 62363 [details] [diff] [review]
experimental patch

Looks fine. r=shanjian

Comment 17

[Brendan Eich [:brendan]]

Comment on attachment 62363 [details] [diff] [review]
experimental patch

sr=[e-mail]

Comment 18

[Frank Tang]

fix and check in.

Comment 19

[Yuying Long]

Verified fixed on 12-27 win32 trunk build on both Win98-S.CN and Win98-KO.

Comment 20

[Yuying Long]

*** Bug 113205 has been marked as a duplicate of this bug. ***

Comment 21

[Shanjian Li]

*** Bug 121594 has been marked as a duplicate of this bug. ***