[OS X TeX] datetime (include time source file was last modified)

[Peter Dyballa]

Am 13.07.2006 um 03:55 schrieb Jan Anderssen:

>> Dear: Whoever, (Knowledgable Ones)
>
> On a related note, does anyone know of an (easy?) way to include  
> the date/time when source file was last modified, rather than the  
> last compile time? ("last modified" turned out not to be the most  
> helpful search string :))
>

Here is a "luxury" block Heiko Oberdiek sent five or six weeks ago  
(eTeX and pdfTeX >= 1.30.0):

	\documentclass{article}
	\usepackage{ngerman}
	\usepackage{hyperref}
	
	\makeatletter
	
	\@ifundefined{pdffilemoddate}{%
	   \PackageError{sourcetime}{%
	     pdfTeX >= 1.30.0 required%
	   }%
	   \let\pdffilemoddate\@gobble
	}{}%
	
	\newcommand*{\SourceFile}[1]{%
	  \edef\@SourceFileDate{\pdffilemoddate{#1}}%
	  % empty in case of errors, but don't harm in next comparison
	  \ifnum\pdfstrcmp{\@SourceFileDate}{\@CurrentSourceFileDate}>0 %
	    \let\@CurrentSourceFileDate\@SourceFileDate
	    \expandafter\@ParseDate\@SourceFileDate\@nil
	    \hypersetup{%
	      pdfcreationdate={\@SourceFileDate},%
	      pdfmoddate={\@SourceFileDate}%
	    }%
	    \PackageInfo{sourcetime}{%
	      Using file `#1'%
	    }%
	  \fi
	}
	\newcommand*{\@CurrentSourceFileDate}{}
	\expandafter\def\expandafter\@ParseDate\detokenize{D:} 
#1#2#3#4#5#6#7#8{%
	  \year=#1#2#3#4\relax
	  \month=#5#6\relax
	  \day=#7#8\relax
	  \@ParseTime
	}
	\def\@ParseTime #1#2#3#4#5\@nil{%
	   \time=\numexpr #1#2 * 60 + #3#4\relax
	}
	\makeatother
	
	\SourceFile{tx.pdf}
	\SourceFile{Zip.java}
	
	\begin{document}
	J"ungste Quelle: \today.
	\end{document}

It is merely meant to create a date format like "D:20060605220539 
+'02'00" for use in hypersetup as file date, but it might be useful  
for your purpose, too.

--
Greetings

   Pete

Increase the size of your bike by at least *five* inches!


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