OOF2: The Manual
Name
WriteMode — Write or append?
Description
WriteMode
is used when opening output files
of all sorts. Choosing w
(which shows up in
the GUI as write or
OVERWRITE) will cause the existing contents of
the file to be deleted when new data is added. Choosing
a
(append in the GUI)
will cause the old data to be preserved, and new data to be appended
to it.
If a file doesn't already exist, there's no difference between
opening it with w
and with
a
. However, if a data file is saved in a GUI
session, and then the session is saved as a script and the script
is reloaded, the file mode of the data file
will make a difference, because the data file
will exist when the script reopens it. The script will contain the
WriteMode
that was used in the original GUI
session.