[luatex] pdf.catalog argument

[Reinhard Kotucha]

Hi,
according to the documentation, the argument of pdf.catalog should be
a string.

When I say

  local meta=string.format('/Metadata %d 0 R', xmpobj)

where xmpobj is the return value of pdf.obj(), then

  tex.print('\\pdfcatalog{'..meta..'}')

works as expected but

  pdf.catalog(meta)

fails:

  ! LuaTeX error [string "\directlua "]:24: attempt to call field 'catalog' (a string value)
  stack traceback:
     [string "\directlua "]:24: in function 'xmp_2'
     [string "\directlua "]:1: in main chunk.

You can use the attached file in order to reproduce the problem.  It
contains two functions.  Change the argument of \directlua in order to
switch between them.

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Regards,
  Reinhard
     
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Reinhard Kotucha                                      Phone: +49-511-3373112
Marschnerstr. 25
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