beta: warning messages

beta: warning messages

[Peter Rolf]

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}


- Peter
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Re: beta: warning messages

[Wolfgang Schuster]

Am 19.03.2009 um 15:19 schrieb Peter Rolf:

> 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.

Because it's nonsense what you do, just assign the value to your
counter inside of the group and will be keeped local.

\newcount\OLDpdfcompresslevel

\def\disablePDFcompression
   {\bgroup
    \OLDpdfcompresslevel\pdfcompresslevel
    \pdfcompresslevel\zerocount\relax}

\def\allowPDFcompression
   {\pdfcompresslevel\OLDpdfcompresslevel\egroup}

Wolfgang

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___________________________________________________________________________________

Re: beta: warning messages

[Hans Hagen]

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


-----------------------------------------------------------------
                                           Hans Hagen | PRAGMA ADE
               Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
      tel: 038 477 53 69 | fax: 038 477 53 74 | www.pragma-ade.com
                                              | www.pragma-pod.nl
-----------------------------------------------------------------
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___________________________________________________________________________________

Re: beta: warning messages

[Hans Hagen]

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

actually, i could probably make a global as well as a local registre 
pool (thr trick is in avoiding stack buildup)

Hans

-----------------------------------------------------------------
                                           Hans Hagen | PRAGMA ADE
               Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
      tel: 038 477 53 69 | fax: 038 477 53 74 | www.pragma-ade.com
                                              | www.pragma-pod.nl
-----------------------------------------------------------------
___________________________________________________________________________________
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maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
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___________________________________________________________________________________

Re: beta: warning messages

[Peter Rolf]

Wolfgang Schuster schrieb:
>
> Am 19.03.2009 um 15:19 schrieb Peter Rolf:
>
>> 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.
>
> Because it's nonsense what you do, just assign the value to your
> counter inside of the group and will be keeped local.
>
*guilty* in this point...

and the past has show, that i'm a repeat offender ;)
 
> \newcount\OLDpdfcompresslevel
>
> \def\disablePDFcompression
>   {\bgroup
>    \OLDpdfcompresslevel\pdfcompresslevel
>    \pdfcompresslevel\zerocount\relax}
>
> \def\allowPDFcompression
>   {\pdfcompresslevel\OLDpdfcompresslevel\egroup}
>
> Wolfgang
>
> ___________________________________________________________________________________ 
>
> If your question is of interest to others as well, please add an entry 
> to the Wiki!
>
> maillist : ntg-context@ntg.nl / 
> http://www.ntg.nl/mailman/listinfo/ntg-context
> webpage  : http://www.pragma-ade.nl / http://tex.aanhet.net
> archive  : https://foundry.supelec.fr/projects/contextrev/
> wiki     : http://contextgarden.net
> ___________________________________________________________________________________ 
>
>


-- 
  "Es ist doch ein Trost,
   das Geldgier manchmal blöd macht."

             - Kottan in "Kottan ermittelt", Folge 9: "Die Einteilung" -



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___________________________________________________________________________________

Re: beta: warning messages

[Hans Hagen]

Peter Rolf wrote:

>> \newcount\OLDpdfcompresslevel
>>
>> \def\disablePDFcompression
>>   {\bgroup
>>    \OLDpdfcompresslevel\pdfcompresslevel
>>    \pdfcompresslevel\zerocount\relax}
>>
>> \def\allowPDFcompression
>>   {\pdfcompresslevel\OLDpdfcompresslevel\egroup}
>>
>> Wolfgang

there are:

\def\nopdfcompression     {\pdfobjcompresslevel\zerocount 
\pdfcompresslevel\zerocount}

\def\maximumpdfcompression{\pdfobjcompresslevel\plusone 
\pdfcompresslevel\plusnine }

\def\normalpdfcompression {\pdfobjcompresslevel\plusone 
\pdfcompresslevel\plusthree}

with

\normalpdfcompression

being default



-----------------------------------------------------------------
                                           Hans Hagen | PRAGMA ADE
               Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
      tel: 038 477 53 69 | fax: 038 477 53 74 | www.pragma-ade.com
                                              | www.pragma-pod.nl
-----------------------------------------------------------------
___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!

maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
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wiki     : http://contextgarden.net
___________________________________________________________________________________

Re: beta: warning messages

[Peter Rolf]

Hans Hagen schrieb:
> 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
>
well, the code is messed up this way, because i had also disabled 
\pdfobjcompresslevel in a prior version.
after i found out, that you can't change it at runtime (only once at the 
very beginning of the document) i removed it. the rest of the macro was 
unchanged.

> 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)
>
ok, will do so. thanks Hans and Wolfgang!

> (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
>
>
> -----------------------------------------------------------------
>                                           Hans Hagen | PRAGMA ADE
>               Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
>      tel: 038 477 53 69 | fax: 038 477 53 74 | www.pragma-ade.com
>                                              | www.pragma-pod.nl
> -----------------------------------------------------------------
> ___________________________________________________________________________________ 
>
> If your question is of interest to others as well, please add an entry 
> to the Wiki!
>
> maillist : ntg-context@ntg.nl / 
> http://www.ntg.nl/mailman/listinfo/ntg-context
> webpage  : http://www.pragma-ade.nl / http://tex.aanhet.net
> archive  : https://foundry.supelec.fr/projects/contextrev/
> wiki     : http://contextgarden.net
> ___________________________________________________________________________________ 
>
>


-- 
  "Es ist doch ein Trost,
   das Geldgier manchmal blöd macht."

             - Kottan in "Kottan ermittelt", Folge 9: "Die Einteilung" -



___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!

maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
webpage  : http://www.pragma-ade.nl / http://tex.aanhet.net
archive  : https://foundry.supelec.fr/projects/contextrev/
wiki     : http://contextgarden.net
___________________________________________________________________________________