lua EOL in xmlsetups

lua EOL in xmlsetups

[Jano Kula]

Hello to everybody,

why end of line is not accepted by \startluacode ... \stopluacode 
construct in xmlsetups? Is there a better way?

This works:
   \startluacode
   for i=10,1,-1 do tex.print(i) end
   \stopluacode

This doesn't work:
   \startluacode
   for i=10,1,-1 do
     tex.print(i)
   end
   \stopluacode

Thanks,

Jano


book.xml source file:
---------------------
<?xml version="1.0" encoding="utf-8"?>
<book>
</book>

book.tex file to test:
----------------------
\startxmlsetups xml:base
   \xmlsetsetup{\xmldocument}{*}{-}
   \xmlsetsetup{\xmldocument}{book}%
   {xml:*}% default
\stopxmlsetups

\xmlregistersetup{xml:base}

\startxmlsetups xml:book
   \startluacode
   for i=10,1,-1 do
     tex.print(i)
   end
   \stopluacode
\stopxmlsetups


\starttext
   \xmlprocessfile{main}{book.xml}{}
\stoptext



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___________________________________________________________________________________

Re: lua EOL in xmlsetups

[Wolfgang Schuster]

Am 14.04.2012 um 20:15 schrieb Jano Kula:

> Hello to everybody,
> 
> why end of line is not accepted by \startluacode ... \stopluacode construct in xmlsetups? Is there a better way?

That’s a feature of \startsetups etc. because you don’t have to worry about unwanted spaces when you write code, e.g. in this example there is no unwanted space even though I haven’t added a % after { (or a few other places)

\startsetups test

  \doifelse
    {
      \somevariable
    }
    {
      \somevalue
    }
    {
      do this
    }
    {
      else do this
    }

\stopsetups

In your case this feature shows a unwanted side effect because the line end after “do” is ignored and Lua gets “dotex.print”. To fix this you can either use \dostepwiserecurse where you can set a start/stop value for the loop of you add a space after “do”.

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  : http://foundry.supelec.fr/projects/contextrev/
wiki     : http://contextgarden.net
___________________________________________________________________________________