Re: [NTG-context] [.tuc] oddity when storing a table

2012-09-17 Thread Philipp Gesang
···date: 2012-09-16, Sunday···from: Hans Hagen···

 On 16-9-2012 19:17, Philipp Gesang wrote:
 Bug?
 
 no, feature. job variables are just key/values and accessible at the
 tex end (you store 'works too' in 'bar')

Ok, I wasn’t aware of this restriction.

 if you want arbitrary data to be stores you need to used datasets,
 as explained in
 
 http://wiki.contextgarden.net/Command/definedataset

Hmm, the wiki only covers the TeX macro interface whilst I am
mainly concerned with passing stuff right from the Lua end.

From my reading of core-dat.lua I gather that there is not really
a way to dump any Lua table (array or hash or mixed) via
datasets. Except directly writing to “tobesaved”.

···
\starttext

\startluacode
  local n, t, d = job.datasets.setdata{
name  = not enough!!!11!1! grr!,
delay = interfaces.variables.no,
data  = a=b,c=d,1=foo,2=bar,nested={second={third=whatever}},
  }

  job.datasets.tobesaved.works_for_me = {
this = { does = { work, for, nested = { tables, !, {{}} } } }
  }

  table.print(job.datasets.getdata(works_for_me, this), this)
\stopluacode

\stoptext
···

I hesitate to wikify the latter, though.

Philipp



 
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Re: [NTG-context] [.tuc] oddity when storing a table

2012-09-17 Thread Hans Hagen

On 17-9-2012 23:13, Philipp Gesang wrote:

···date: 2012-09-16, Sunday···from: Hans Hagen···


On 16-9-2012 19:17, Philipp Gesang wrote:

Bug?


no, feature. job variables are just key/values and accessible at the
tex end (you store 'works too' in 'bar')


Ok, I wasn’t aware of this restriction.


if you want arbitrary data to be stores you need to used datasets,
as explained in

http://wiki.contextgarden.net/Command/definedataset


Hmm, the wiki only covers the TeX macro interface whilst I am
mainly concerned with passing stuff right from the Lua end.

 From my reading of core-dat.lua I gather that there is not really
a way to dump any Lua table (array or hash or mixed) via
datasets. Except directly writing to “tobesaved”.


And that is indeed somewhat nasty; I'll add a 'convert' key to the 
settings so that you can set raw data at the Lua end.


(I'll send you a Lua file for testing)

Hans


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tel: 038 477 53 69 | voip: 087 875 68 74 | www.pragma-ade.com
 | www.pragma-pod.nl
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[NTG-context] [.tuc] oddity when storing a table

2012-09-16 Thread Philipp Gesang
Hi all,

I can’t explain the following behavior of the .tuc writer. When
passed a nested hash, context fails on the second pass if the
array part of the first nesting depth is empty:

···

%% the commented lines work
\startluacode
  job.variables.tobesaved.foo = { bar = {  } }
  -- job.variables.tobesaved.foo = { works now,  bar = {  } }
  -- job.variables.tobesaved.foo = { bar =  works too }
\stopluacode

\starttext foo \stoptext

···

I get this error:

···
  ! LuaTeX error ...text/tex/texmf-context/tex/context/base/cldf-ini.lua:410: 
no string to print
  stack traceback:
[C]: in function 'flush'
...text/tex/texmf-context/tex/context/base/cldf-ini.lua:410: in function 
...text/tex/texmf-context/tex/context/base/cldf-ini.lua:360
(tail call): ?
...text/tex/texmf-context/tex/context/base/core-uti.lua:112: in function 
'initializer'
...text/tex/texmf-context/tex/context/base/core-uti.lua:200: in function 
'load'
...text/tex/texmf-context/tex/context/base/core-uti.lua:66: in function 
'initialize'
main ctx instance:1: in main chunk.
  
  system   tex  error on line 1 in file 
/home/phg/context/tex/texmf-context/tex/context/base/cont-yes.mkiv: LuaTeX 
error  ...
···

Bug?

Regards
Philipp




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Re: [NTG-context] [.tuc] oddity when storing a table

2012-09-16 Thread Hans Hagen

On 16-9-2012 19:17, Philipp Gesang wrote:

Hi all,

I can’t explain the following behavior of the .tuc writer. When
passed a nested hash, context fails on the second pass if the
array part of the first nesting depth is empty:

···

%% the commented lines work
\startluacode
   job.variables.tobesaved.foo = { bar = {  } }
   -- job.variables.tobesaved.foo = { works now,  bar = {  } }
   -- job.variables.tobesaved.foo = { bar =  works too }
\stopluacode

\starttext foo \stoptext

···

I get this error:

···
   ! LuaTeX error ...text/tex/texmf-context/tex/context/base/cldf-ini.lua:410: 
no string to print
   stack traceback:
 [C]: in function 'flush'
 ...text/tex/texmf-context/tex/context/base/cldf-ini.lua:410: in function 
...text/tex/texmf-context/tex/context/base/cldf-ini.lua:360
 (tail call): ?
 ...text/tex/texmf-context/tex/context/base/core-uti.lua:112: in function 
'initializer'
 ...text/tex/texmf-context/tex/context/base/core-uti.lua:200: in function 
'load'
 ...text/tex/texmf-context/tex/context/base/core-uti.lua:66: in function 
'initialize'
 main ctx instance:1: in main chunk.

   system   tex  error on line 1 in file 
/home/phg/context/tex/texmf-context/tex/context/base/cont-yes.mkiv: LuaTeX error  ...
···

Bug?


no, feature. job variables are just key/values and accessible at the tex 
end (you store 'works too' in 'bar')


if you want arbitrary data to be stores you need to used datasets, as 
explained in


http://wiki.contextgarden.net/Command/definedataset

-
  Hans Hagen | PRAGMA ADE
  Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
tel: 038 477 53 69 | voip: 087 875 68 74 | www.pragma-ade.com
 | www.pragma-pod.nl
-
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