Thanks for the testcase, Heiko, that was very helpful.
It turns out the problem can also be triggered by setting
\XeTeXinputnormalization=1 (or 2) in a similar way.
I've just checked-in a bugfix (xetex 0.9997.2) to the texlive source tree, in
the hope there will be a further rebuild before the actual release of TL'10.
JK
On 22 Jun 2010, at 12:13, Heiko Oberdiek wrote:
> On Tue, Jun 22, 2010 at 12:24:29PM +0200, Heiko Oberdiek wrote:
>
>> \documentclass{minimal}
>
> Now I have an even more minimal test file for iniXeTeX:
>
> \tracinglostchars=1
> \tracingcommands=2
> \catcode`\{=1
> \catcode`\}=2
> \XeTeXdefaultencoding "UTF-8"
> \def\document{%
> \input test.aux % contents: \relax
> \edef\x{\csname relax\endcsname}%
> \input test.out % size: 0
> }
> \document
> \end
>
> xetex -etex -ini test
>
> The text of the file test.out is "relaxx ", not visible in
> the PDF file because there isn't a real font set, but
> the .log file shows the characters.
>
> Yours sincerely
> Heiko Oberdiek
>
>
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