Equivalent of os.resultof(...) in LaTeX

Equivalent of os.resultof(...) in LaTeX

[Xan]

Hi,

Just short question: what's the equivalent in latex of 
\ctxlua{context(os.resultof("sha256sum \jobname.conTeXt | cut -c  -5"))}

?

Thanks in advance,
Xan
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Re: Equivalent of os.resultof(...) in LaTeX

[Herbert Voss]

Am 03.11.2014 um 12:42 schrieb Xan:

> Just short question: what's the equivalent in latex of 
> \ctxlua{context(os.resultof("sha256sum \jobname.conTeXt | cut -c  -5"))}

\documentclass{article}
\begin{document}
\directlua{
 local handle = io.popen("sha256sum \jobname.tex | cut -c -5","r")
 if handle then
   local result = handle:read("*all") or ""
   handle:close()
   tex.print(result)
 end
}
\end{document}


or load l-os.lua, then the command os.resultof is available.

Herbert

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Re: Equivalent of os.resultof(...) in LaTeX

[Xan]

On Mon, 3 Nov 2014 14:31:17 +0100
Xan <dxpublica@telefonica.net> ha escrit:

> It does not work:> \documentclass{article}
> > \begin{document}
> > \directlua{
> >  local handle = io.popen("sha256sum \jobname.tex | cut -c -5","r")
> >  if handle then
> >    local result = handle:read("*all") or ""
> >    handle:close()
> >    tex.print(result)
> >  end
> > }
> > \end{document}
> 
> Neither this:
> 
> > \directlua{
> >  require "lualibs-os"
> >  tex.sprint(os.resultof("sha256sum \jobname.tex | cut -c  -5"))
> > }
> 
> 
> Blank. Nothing displayed.
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Re: Equivalent of os.resultof(...) in LaTeX

[Herbert Voss]

Am 04.11.2014 um 08:55 schrieb Xan:
> Xan <dxpublica@telefonica.net> ha escrit:
> 
> It does not work:>

That is not a useful error description ...

Herbert



 \documentclass{article}
>>> \begin{document}
>>> \directlua{
>>>  local handle = io.popen("sha256sum \jobname.tex | cut -c -5","r")
>>>  if handle then
>>>    local result = handle:read("*all") or ""
>>>    handle:close()
>>>    tex.print(result)
>>>  end
>>> }
>>> \end{document}
>>
>> Neither this:
>>
>>> \directlua{
>>>  require "lualibs-os"
>>>  tex.sprint(os.resultof("sha256sum \jobname.tex | cut -c  -5"))
>>> }
>>
>>
>> Blank. Nothing displayed.
> ___________________________________________________________________________________
> 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
> ___________________________________________________________________________________
> 

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___________________________________________________________________________________

Re: Equivalent of os.resultof(...) in LaTeX

[Xan]

> That is not a useful error description ...
> 
> Herbert

More clear than this?

 Neither this:
 
 > \directlua{
 >  require "lualibs-os"
 >  tex.sprint(os.resultof("sha256sum \jobname.tex | cut -c  -5"))
 > }
 
 
 Blank. Nothing displayed.
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___________________________________________________________________________________

Re: Equivalent of os.resultof(...) in LaTeX

[Herbert Voss]

Am 06.11.2014 um 15:51 schrieb Xan:
>> That is not a useful error description ...
>>
>> Herbert
> 
> More clear than this?
> 
>  Neither this:
>  
>  > \directlua{
>  >  require "lualibs-os"
>  >  tex.sprint(os.resultof("sha256sum \jobname.tex | cut -c  -5"))
>  > }
>  
>  
>  Blank. Nothing displayed.


 \directlua{
   require "lualibs-os"
   tex.sprint(os.resultof("sha256sum \jobname.tex"))
 }
\bye

luatex --shell-escape <file>
will work.

Herbert
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___________________________________________________________________________________

Re: Equivalent of os.resultof(...) in LaTeX

[Xan]

luatex --shell-escape <file>
will work.

It works Thanks
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___________________________________________________________________________________