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From: Hans Hagen <pragma@wxs.nl>
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Subject: Re: Versionnumbers
Date: Tue, 10 Jul 2001 18:34:43 +0200
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At 05:30 PM 7/10/01 +0200, Hokojoku, Bert wrote:
>Hi all,
>I'm trying to keep track of the versions of my documents. Is it possible to
>print the number of times a file has been generated in a title or a header?
>Or, is there some other way to generate versionnumbers?

you can use 

  \version[concept]  % \versie[concept]

or 

  \version[temporary] % \versie[voorlopig]

which provides some info about the project structure [if used]

If you want to keep track of numbers in an independent way, the best way is 

\def\LoadVariable#1#2%
  {\startreadingfile
   \readlocfile{#2}{}{}%
   \ifx#1\undefined\global\let#1\empty\fi
   \stopreadingfile}

\def\SaveVariable#1#2%
  {\immediate\openout\scratchwrite=#2%
   \immediate\write\scratchwrite{\string\gdef\string#1{#1}}%
   \immediate\closeout\scratchwrite}

\newcounter\CurrentVersionNumber

\def\IncrementVersionNumber%
  {\LoadVariable{\CurrentVersionNumber}{version.num}%
   \doglobal\increment\CurrentVersionNumber
   \SaveVariable{\CurrentVersionNumber}{version.num}}

\IncrementVersionNumber versie: \CurrentVersionNumber

[let's hope that this makes it into teh archive since i'll probably loose it]

Hans

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