Re: [NTG-context] Problem with MkIV and TikZ picture remembering

8 Mar 2015


      On 3/8/2015 7:07 PM, Wolfgang Schuster wrote:
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Am 08.03.2015 um 18:39 schrieb Hans Hagen :
On 3/8/2015 1:04 PM, Wolfgang Schuster wrote:
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Am 08.03.2015 um 12:55 schrieb Hans Hagen mailto:pragma@wxs.nl>:
On 3/8/2015 12:26 PM, Wolfgang Schuster wrote:
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Am 08.03.2015 um 11:11 schrieb Hans Hagen mailto:pragma@wxs.nl
mailto:pragma@wxs.nl>:
this should help:
\unexpanded\def\writeviatex#1#2%
{\ifx\normalwrite\relax\else
  % the \detokenize makes sure we don't expand \noexpanded macros
   \normalwrite#1{\detokenize{#2}}%
\fi}
(in future version i might replace write completely)
Only partially because the saved positions from \pdfsavepos are wrong.
in what sense wrong?
Content of the external file from MkIV (the entries on the first page show 0
and the values on page 2 and 3 are always the same):
1:0:0
2:0:0
3:4661756:45255023
4:4661756:45255023
5:4661756:45255023
6:4661756:45255023
Content of the external file from MkII (different values for the first
and second position on each page):
1:6526435:46204089
2:4661756:45256000
3:6526435:46204089
4:4661756:45256000
5:6526435:46204089
6:4661756:45256000
ypositions can differ a bit because we use different fonts and so does the interlinespace
But the values for both positions should be different which isn’t the case for MkIV
and the first page saves 0 for the x and y positions.
hm, after some playing with it i think that is a luatex bug (it expands 
the positions in a tex.write which is wrong

so we need to revert to this:

\def\syst_write_execute#1%
   {\ctxcommand{execute(\!!bs#1\!!es)}}

\unexpanded\def\write#1#%
   {\ifnum#1=18
      \expandafter\syst_write_execute
    \else
      \normalwrite#1%
    \fi}

(context itself doesn't suffer from this as it does things differently; 
maybe i should make an api and then nil \pdf*pos)

Hans

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                                           Hans Hagen | PRAGMA ADE
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