[tex-live] Fwd: Duplicate Thai patterns reported by XeTeX in TL 2015 pretest

[KAKUTO, Akira]

Here I have:

This is XeTeX, Version 3.14159265-2.6-0.99992 (TeX Live 2015/W32TeX)
(preloaded format=xetex)
 restricted \write18 enabled.
entering extended mode
(./t.tex
> 유 술 .
l.3 }\showthe\toks0

?
)
No pages of output.
Transcript written on t.log.

Best,
Akira

2015-04-15 10:01 GMT+09:00 Dohyun Kim <nomosnomos at gmail.com>:
> I forgot to CC the list. So forwarding.
>
>
> ---------- Forwarded message ----------
> From: Dohyun Kim <nomosnomos at gmail.com>
> Date: 2015-04-15 9:43 GMT+09:00
> Subject: Re: [tex-live] Duplicate Thai patterns reported by XeTeX in
> TL 2015 pretest
> To: Khaled Hosny <khaledhosny at eglug.org>
>
>
> 2015-04-15 3:04 GMT+09:00 Khaled Hosny <khaledhosny at eglug.org>:
>> On Tue, Apr 14, 2015 at 10:27:30AM +0200, Mojca Miklavec wrote:
>>>
>>> Did XeTeX accidentally become more "clever" about normalisation rules
>>> during the last year? Or maybe it started doing automatic word
>>> splitting and now automatically inserts spaces in the middle of
>>> hyphenation patterns as well?
>>
>> Nothing that I'm aware of.
>>
>> Regards,
>> Khaled
>
> This issue might be related to the weird behaviour of xetex I have found:
>
> \toks0{유
> 술
> }\showthe\toks0
> \bye
>
> $ xetex test.tex
> This is XeTeX, Version 3.14159265-2.6-0.99992 (TeX Live 2015/dev)
> (preloaded format=xetex)
>  restricted \write18 enabled.
> entering extended mode
> (./test.tex
>>  \par .
> l.5 }\showthe\toks0
>
> ?
>  )
> No pages of output.
> Transcript written on test.log.
>
> As shown, characters `유' and `술' are gone away and nothing is printed.
> Note that Unicode codepoints of these characters are U+C720 and U+C220
> respectively, with 0x20 in their lower bytes.
>
> Regards,
> --
> Dohyun Kim
> Seoul, Republic of Korea
>
>
> --
> Dohyun Kim
> Seoul, Republic of Korea
>