Isriya Paireepairit Reporter
	Description • 23 years ago

From Bugzilla Helper:
User-Agent: Mozilla/5.0 (Windows; U; Win98; en-US; rv:0.9.7) Gecko/20011221
BuildID:    2001122106

happened on 0.9.6 and 0.9.7

When open any Thai web page, the character 'To Taharn' (alphabet number 23,
press ALT+183 on windows) is too small and the vowel over
this character is move to the next character.

especially with font 'MS San Serif' and page that specify browser to
use this font.

Reproducible: Always
Steps to Reproduce:
1. set font in preference to MS San Serif
2. open some thai website (for example : http://linux.thai.net) 
3. see the strange character.

There is no problem like this on 0.9.5 and below. only 0.9.6 above, so I think
there is some problem occur on this time.

	Roy Yokoyama
	Comment 2 • 23 years ago

We don't officially support Thai. (correct me if I'm wrong)
and I am surprised to learn the mozilla was displaying 
Thai correctly at all.  

teruko: can we confirm this bug? 

There are bunch of Thai related bugs assigned to multiple people
http://bugzilla.mozilla.org/buglist.cgi?bug_status=NEW&bug_status=ASSIGNED&bug_status=REOPENED&email1=&emailtype1=substring&email2=&emailtype2=substring&emailreporter2=1&bugidtype=include&bug_id=&changedin=&votes=&chfieldfrom=&chfieldto=Now&chfieldvalue=&short_desc=thai&short_desc_type=substring&long_desc=&long_desc_type=substring&bug_file_loc=&bug_file_loc_type=substring&status_whiteboard=&status_whiteboard_type=substring&keywords=&keywords_type=anywords&field0-0-0=noop&type0-0-0=noop&value0-0-0=&cmdtype=doit&namedcmd=mozilla0.9&newqueryname=&order=Reuse+same+sort+as+last+time
I'll assign this to shanjian.

	Frank Tang
	Comment 3 • 23 years ago

sorry, our knowledge about is very limited. Could you enlarge the screen shot
and circle with some mark with the problem area. It will be nice if you can also
produce some smaller test page for this.

	Frank Tang
	Comment 4 • 23 years ago

>We don't officially support Thai. (correct me if I'm wrong)

I don't think that is our position. We know there are still a lot of line
breaking problem on thai. But we try to fix display problem as possible as we can. 

	Isriya Paireepairit Reporter
	Comment 5 • 23 years ago

Dear ftang

the area is the character like 'n' (big and bold) in the captured image.

	Shanjian Li Assignee
	Comment 6 • 23 years ago

reporter,
Could you post the correct display with "MS San Serif" font? I am also wondering if 
the problem is the font is really "MS San Serif". On my system, I could not find 
"MS San Serif" contains any Thai characters. This should be a font problem if you 
don't see this problem with other font. You might also want to post your font here 
for us to examine. 

	Arthit Suriyawongkul
	Comment 7 • 23 years ago

http://linux.thai.net in Mozilla 0.9.8 on Windows 98 SE

	Arthit Suriyawongkul
	Comment 8 • 23 years ago

test case (+ brief report)

	Arthit Suriyawongkul
	Comment 9 • 23 years ago

Thai Character Tho Thahan --> unicode 0E17

from the html test case,
we've found that the problems may occur only with "MS Sans Serif" font.

1. font size of Thai Character Tho Thahan will differs from others. (bigger or
smaller)
** see green circles in screenshot #2 **

2. none of characters will able to be cell-composed with Thai Character Tho
Thahan, they will be pushed behind.
** see red circles in screenshot #2 **

FYI,
Windows 2000 and newer doesn't has "MS Sans Serif", it has only "Microsoft Sans
Serif".
"Microsoft Sans Serif" is a newer version of "MS Sans Serif".

----

confirm this bug.

	Arthit Suriyawongkul
	Comment 10 • 23 years ago

note:
this issue with "MS Sans Serif" doesn't occurs in Internet Explorer (viewing the
same page/url)

	Brant Gurganus
	Comment 11 • 23 years ago

This appears correctly according to enlarged screen capture for me.  I am
running Windows XP.  This might be a font issue.  Also, Windows 98 does not have
as much Unicode/international support as NT-based systems.  Perhaps the problem
reporter could try updating their fonts at
http://www.microsoft.com/typography/fontpack/default.htm

The font properties extension at
http://www.microsoft.com/typography/property/property.htm can list the font
version as well as Unicode types supported, presence of Euro character, etc.

	Isriya Paireepairit Reporter
	Comment 12 • 23 years ago

Dear Brant
    'MS San Serif' is quite standard thai font on Windows 98/ME machine. (although
Win ME users can use 'Microsoft San Serif' instead and get no problem). I think 
that's difficult for making all Win98 users to update their fonts.

So we need to fix it.

	Arthit Suriyawongkul
	Comment 13 • 23 years ago

the same issue also occurs in printing
(tested in Windows 98 SE)

	Prabhat Hegde
	Comment 14 • 23 years ago

hi arthit,
Do you find the same issue on CTL enabled build on linux/Solaris 
(--enable-ctl)? I just tried it and Tho Thahan (\u0e17) was
rendered correctly on both Solaris and Linux. So it seems that 
proper presentation form is not generated on windows for MS San Serif.

	Prabhat Hegde
	Comment 15 • 23 years ago

Moving arthit's mail into the bug.
prabhat.

Date: Wed, 29 May 2002 11:18:26 +0700
From: Art - Arthit Suriyawongkul <Arthit.Suriyawongkul@Sun.COM>
Subject: Re: [Bug 117484] Wrong Display with Thai Character (Alt+183)
To: "Prabhat.Hegde" <Prabhat.Hegde@Sun.COM>
MIME-version: 1.0
Content-transfer-encoding: 7bit
X-Accept-Language: th, en-us
User-Agent: Mozilla/5.0 (Windows; U; Win98; en-US; rv:1.0.0+) Gecko/20020525

this bug occurs only on Windows,
with "MS Sans Serif" font.

Linux/Solaris are not affected by this.
(or may be it is because Linux/Solaris don't has that font ?)

regards,
Art

	Samphan Raruenrom
	Comment 16 • 20 years ago

I'm using Firefox on Windows XP. I look at the HTML test case (id 68815) and I
don't see the problem. Could it be that the problem is fixed or it only happens
on Windows 98?

	Arthit Suriyawongkul
	Comment 17 • 20 years ago

This is probably a font issue.

	Arthit Suriyawongkul
	Comment 18 • 20 years ago

I mean a combination of font + OS,

MS Sans Serif + Windows 98.

	Isriya Paireepairit
	Comment 19 • 19 years ago

This bug can be found in Win95/98 only. Windows ME and above doesn't have this bug.

	Simon Montagu :smontagu
	Comment 20 • 17 years ago

WONTFIX Win9x-only bug.