Re: [NTG-context] Use date of the tex file in the document

24 Mar 2011


      2011/3/24 Aditya Mahajan 
...
\getdate would return os.date("%Y-%m-%d",attr.modification)
...
and
  \getdate{"long"} would return os.date("%Y-%m-%d
%H:%M",attr.modification)
I have looked at lua, but do not see how to do it. (Something else to
learn.)
I would like to do something like the following:
Untested:
\def\getdate%
 {\dosinglegroupempty\dogetdate}
\def\dogetdate#1%
  {context{modification_date("\jobname.tex", "#1")}}
and then in the lua code
function modification_date(file, format)
....
if format == "long" then
....
else
...
end
end
I have:
\startluacode
  function modification_date(file, format)
    local f    = file
    local attr = lfs.attributes(f)

    assert (type(attr) == "table")
    if attr.mode ~= "directory" then
      if format == "long" then
        return os.date("%Y-%m-%d %H:%M",attr.modification)
      else
        return os.date("%Y-%m-%d",attr.modification)
      end
    end
  end
\stopluacode

\def\getdate%
 {\dosinglegroupempty\dogetdate}

\def\dogetdate#1%
  {context{modification_date("\jobname.tex", "#1")}}

This results in:
    contextmodification_date("subversion.tex", "")

-- 
Cecil Westerhof