[XeTeX] XeTeX segmentation faults

[Ross Moore]

Hi Musa,

On 17/06/2004, at 1:31 PM, Musa Furber wrote:

>> \DeclareRobustCommand{\=}[1]{#1^^^^0304}
>>
>>> If I can get this one fixed, my conversion over to XeTeX with 
>>> Hoefler should be finished, and I can start having fun. (Then 
>>> again...)
>>
>> Does the above give any improvement ?
>
> Thanks.
>
> Unfortunately, no. It does not appear to make difference.

OK; I've traced the reason why now.

Here's what you should use in the preamble:

   \expandafter\def\csname U\string\=\endcsname#1{#1^^^^0304}



Another way, almost equivalent, is to make a declaration
after Jonathan's definition:

   \def\=#1{#1^^^^0304}
   \expandafter\let\csname U\string\=\endcsname\=

That cryptic 2nd line declares how to handle the \= accenting macro,
when there is a font change with a U-encoded input stream.
Without this declaration, the pre-defined method appropriate to 
OT1-encoded
input is used, so the redefined \= has no effect (except at \normalsize
in the \normalfont).



>
> What this naive-newbie ended up doing was a bunch of
>
> \newcommand{\mfA}{A^^^^0304}
> \newcommand{\mfa}{a^^^^0304}

If you know the real Unicode code-points for \mfA and \mfa,
then it should be possible to make the  U\=  macro use these.
(After all, this is what happens with T1 accents.)
I'll do some further tracing to see how this is achieved.



>
> macros, and then doing a global search-and-replace. Hopefully it is a 
> temporary measure. It works, but it is ugly.

Sure, it's ugly.
You can forget that approach now.


Cheers

	Ross


>
> Regards,
> Musa
>
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>
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Ross Moore                                         ross at maths.mq.edu.au
Mathematics Department                             office: E7A-419
Macquarie University                               tel: +61 +2 9850 8955
Sydney, Australia                                  fax: +61 +2 9850 8114
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