[XeTeX] Whitespace in input

Zdenek Wagner zdenek.wagner at gmail.com
Tue Nov 15 15:17:47 CET 2011

2011/11/15 Philip TAYLOR <P.Taylor at rhul.ac.uk>:
> Zdenek Wagner wrote:
>> If you know what such characters are (and it will certainly be
>> documented), you just set their categories back to 12 in order to get
>> the old behaviour.
> No ! "A catcode is for life, not just for Christmas" !  Once a
> character has been read, and bound into a character/catcode pair,
> that catcode remains immutable.  That means that code that is /not/
> expecting to have to deal with non-standard catcodes could none the
> less be passed token lists containing such entities if it is
> possible, within a document, to turn such a feature on and
> off again.
Of course, I know it. What I meant was that you could set \catcode of
all these "extended" characters to 12 at the beginning of your
document. Thus you get the same behaviour as now.

> ** Phil.
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Zdeněk Wagner

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