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1991-11-24
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Showdir - A utility for RISC OS computers by Neil Hoggarth.
-----------------------------------------------------------
Introduction.
-------------
Showdir emulates the actions of the desktop filer when opening a
directory for the first time. It scans a directory looking for applications
and, if it finds any, running the associated "!boot" files. Running showdir
on a directory full of applications therefore sets up filetypes, run actions
icons, etc. without actually having to open the directory viewer. This is
particularly useful for hard disc users who can put their applications into
a directory and then initialise them all from within a !BOOT startup script.
Subsiquently clicking on a document file will load the relevent editor or
application without you having to go and look for it.
Installation.
-------------
Copy the file "showdir" to your normal Library directory. This can
be any directory pointed to by the system variable Run$Path but is often
"$.Library" on your hard disc.
Running the program.
--------------------
Before the program is run the shared C library module must be
loaded. The program is started from the command line or within an obey
script. The syntax of the command is as follows.
showdir <filename>
"<filename>" is the filename of the directory to be searched. An error will
be generated if this parameter is missing or the directory does not exist.
eg. showdir SCSI::HardDisc.$.Apps
The program is intended to be used in a startup file, such as
"!Boot" or a Desktop startup file. Run it on your application directories
and all the filetypes, sprites, run actions, etc. for your applications will
be automatically set up. This means that draw files have the right icon even
if you haven't 'seen' the Draw application. If you double click on an
Impression document then Impression loads automatically, rather than giving
an "Impression has not been seen by the filer" error. My Desktop startup
file includes the lines
Run SCSI::4.$.!System
RMensure SharedClibrary 3.50 RMload system:modules.clib
showdir SCSI::4.$.Apps
showdir SCSI::4.$.Dtp
showdir SCSI::4.$.DDE
Which sets up all the editors, Impression, file conversion
utilities, Desktop C and so forth, to recognise their files. Remember
that clib must be loaded before running showdir
Copying.
--------
This program has been placed in the public domain by the author
subject to the GNU general public licence (note that this program has
nothing to do with th GNU project as such, I am simply borrowing the FSF's
licence). A copy of the licence should be distributed with the program in a
file called "Copying". You should recieve all the following files
Docs This text file.
Copying The GNU general public licence.
Makefile A set of rules for compiling the program with "make"
showdir The program.
c.showdir The source code.
ChangeLog See below.
As explaned in the general licence you may modify the program and distribute
your own version. Since different people may take the source and modify it
independently it is imposible to come up with any consistent version
numbering scheme. Instead I use a file which goes with the program called
"ChangeLog". If you modify the code and subsiquently distribute your version
then comment the changes in the code and also append an entry to ChangeLog.
The ChangeLog file should therefore provide a "backtrace" of all the people
who have had a hand in the code.
All bug reports, new versions, constructive critisism, etc. to the following
address.
Neil Hoggarth
18 Stanmore Lane,
Winchester,
SO22 4AJ.