This file contains just some notes on the 2.07 release of the
ReDIF-perl package.  Ideally such information should go into a
separate special history file, but I do not maintain such a file,
therefore I've created this file.  

The 2.07 release introduces only one significant change from its
predecessor 2.06: the MIME-type checking for the File-Format field of
the ReDIF templates.

It contains two new files: this one README.2.07 and
lib/ReDIF/MIME_types.pm Perl module, which contains a list of all
valid MIME (media) types as defined by IANA (or whoever defines them).

That file has been generated by a simple script (not included) from a
text document, containing such a list (of types).  I have retrieved
that document from the following URL on July 26, 2000

http://www.isi.edu/in-notes/iana/assignments/media-types/media-types


The package also contains updated spec/redif.spec file, which now
includes a simple checking for MIME type values of the File-Format
attribute of ReDIF templates.  The new redif.spec is dependent on the
lib/ReDIF/MIME_types.pm file being available to the ReDIF-perl.  

Therefore, to use MIME type checking as implemented in the enclosed
version of redif.spec on a running ReDIF system, one shall either
install whole of this package or copy MIME_types.pm file to a local
Perl-accessible library directory.  In fact, those who mirror RePEc
central all archive will have everything that is needed automatically
installed when their local copy is updated.

Please note that the checking routine generates a warning when a wrong
media type value is encountered and the wrong value is then ignored
(hidden).  To see that warning in rech's output, you must make sure
rech's message output level is set to 2 or lower (on my system it is 3
by default, which means that only errors are shown, not warnings).
But the checking itself is executed independently of the rech settings
and the rr.pm-dependent applications can rely on rr.pm supplying
either valid MIME type values as the File-Format attribute values or
empty strings.








