=begin options

write = root

=end

=head3 PodWiki Version Control System - RCS

PodWiki uses L<RCS|http://www.cs.purdue.edu/homes/trinkle/RCS/> as
its version control system. You can access the version information any
time for every PodWiki page. Follow the B<InfoAboutPage> link.

For every
version of your page will be displayed a box. From this box you can view
this particular version. Or you can restore an older version as the
current version. The latter feature is very handy if some wag
edited a page in an unfriendly manner.

In addition it is possible to see what has been changed between the
previous version of a page. Just click on the B<diff ..> button to
view the differences. Diffs are displayed with some contextual lines
before and after the change. Orange colored lines were removed and
green lines were added. Gray lines are unchanged and are displayed
as context.


=head3 RCS keywords

You can use all of the RCS special keywords which will be automatically
substituted by RCS during checkin of a new version of a page.

B<Please note, that those keywords cannot be used as variable names!>

=head4 Keywords

Here  is  the  list of keywords currently maintained by RCS.  All times
are given in Coordinated Universal Time (UTC, sometimes  called  GMT).

=over

=item B<\$Author\$>

The login name of the user who checked in the revision.

=item B<\$Date\$>

The date and time the revision was checked in.

=item B<\$Header\$>

A standard header containing the full pathname of  the  RCS  file,
the revision number, the date and time, the author, the state, and
the locker (if locked).

=item B<\$Id\$>

Same as B<\$Header\$>, except that the RCS filename is without a  path.

=item B<\$Locker\$>

The  login  name of the user who locked the revision (empty if not
locked).

=item B<\$Log\$>

The log message supplied during checkin.   For  ident's  purposes,
this is equivalent to B<\$RCSfile\$>.

=item B<\$Name\$>

The symbolic name used to check out the revision, if any.

=item B<\$RCSfile\$>

The name of the RCS file without a path.

=item B<\$Revision\$>

The revision number assigned to the revision.

=item B<\$Source\$>

The full pathname of the RCS file.

=item B<\$State\$>

The state assigned to the revision.

=back

X<revision version rcs>

=cut
