Re: beta: warning messages

[Hans Hagen <pragma@wxs.nl>]

Peter Rolf wrote:
> Hi Hans,
> 
> looks my knowledge of TeX is holey like a Leerdammer. Can you tell me 
> why you fire a warning for already defined, non-global  allocated 
> registers?
> Some of them make sense here but even a grouped (and local allocated) 
> register gives such a warning.
> 
> warning        : \count \OLDpdfcompresslevel is already defined (\relax 
> it first)
> 
> \def\disablePDFcompression%
>  {\bgroup
> %   \let\OLDpdfcompresslevel\relax
>   \newcount\OLDpdfcompresslevel
>   \OLDpdfcompresslevel\pdfcompresslevel
>   \pdfcompresslevel\zerocount\relax}
> \def\allowPDFcompression%
>  {\pdfcompresslevel\OLDpdfcompresslevel\egroup}

first of all, there is a command \nopdfcompression so you don't need the 
hackery

then, \newcount is global and the latest releases of context catch 
redefinitions so:

- either move the \newcount outside the macro
- or relax it first (which will spoil a counter then)

(the whole allocator has been rewritten and is no longer doing it in the 
traditional tex way, at least not with respect to where things end up; 
cleaner this way)

Hans


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