[XeTeX] Question about polyglossia and babel

[Dominik Wujastyk]

When xelatex is building it's format file, it gets to loading latex.ltx.
That contains

\InputIfFileExists{hyphen.cfg}
>            {\typeout{===========================================^^J%
>                       Local configuration file hyphen.cfg used^^J%
>                      ===========================================}%On 23
> November 2010 10:03, Philip
>

There are two hyphen.cfg files in TL2010, one for babel and one for luatex.


/usr/local/texlive/2010/texmf-dist/tex/generic/babel/hyphen.cfg
> /usr/local/texlive/2010/texmf-dist/tex/luatex/hyph-utf8/hyphen.cfg
>

They're more or less the same file; the luatex one has some additions
specific to \ifx\directlua or \else.   Xelatex loads the first.  That's the
babel one, and that's where the "Babel <v3.8l>" announcement in the XeLaTeX
format comes from.

Dominik

Taylor (Webmaster, Ret'd) <P.Taylor at rhul.ac.uk> wrote:

>
>
> Dominik Wujastyk wrote:
>
>> I've been puzzled for a while because my TL2010 distribution appears to
>> load Babel by default very early in the format file.
>>
>> E.g.,:
>>
>>    $ xelatex
>>    This is XeTeX, Version 3.1415926-2.2-0.9997.4 (TeX Live 2010)
>>      restricted \write18 enabled.
>>    **\relax
>>    entering extended mode
>>    LaTeX2e <2009/09/24>
>>    Babel <v3.8l> and hyphenation patterns for english,...
>>
>
> I don't think this started at TL 2010, Dominik; I have recollections
> of seeing Babel mentioned early in the log file in earlier releases,
> and in a sense it was part of what I looked for to see if TeX or
> LaTeX had been invoked.
>
> ** Phil.
>
>
>
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