17-March-1994
This version of Modify has been revised to run on Alpha-AXP OpenVMS systems
and contains some improvements over previous versions. It allows longer
record lengths (up to 512 bytes) and handles errors resulting from
non-standard file types such as the file "BACKUP-MAC-COM".  The Fortran
Inquire function returned "UNKNOWN" for file record type which caused an
error in the previous version of Modify.  On the Alpha-OpenVMS system, the
INQUIRE function itself returned an error for this file and the previous
version of Modify would exit.  The current version just prints an error
message and continues. 
 
Modify now has an F77 qualifier for changing Fortran source code
format from tab code to standard and replacing exclamation point comment
delimiters and debug statement delimiters, and/or removing all comments.
There was a bug in the detabbing of F77 files in the version of modify on
the 1991 DECUS tape.  The bug has been fixed in this version.
 
The same version of Modify will now work on OpenVMS-VAX or OpenVMS-Alpha,
but it is necessary to recompile and relink, so if both types of machines are
in a cluster there must be two versions of the Modify executable.

Thanks to Hunter Goatley's suggestion, MODIFY can now be installed without
changing DCLTABLES.  If you do not wish to change DCLTABLES.EXE, you will have
to add a symbol to define MODIFY as a foreign command in either SYLOGIN.COM
or LOGIN.COM.  You will not be allowed to add MODIFY to DCLTABLES.EXE unless
you are logged into the SYSTEM account.  To install MODIFY, do the following:

1. Create a MODIFY directory.
2. Set Default to the MODIFY directory.
3. Enter "@INSTALL"
4. If you installed MODIFY as a foreign command, add the requested
   definition to SYS$MANAGER:SYLOGIN.COM, or SYS$LOGIN:LOGIN.COM (for
   personal user only).

Tom Worlton
worlton@anlpns.pns.anl.gov