Z Programs
Z.text.ed.shell
This procedure is used to set up a text file for editing by the text editor
kernal (Z.text.ed.kern).
A text box of any size can be defined as long as it is no more than 79 characters wide, and it's bottom margin is less than 24. Although the kernal will accept a larger edit area (92 by 28), this particular shell has been set up with these maximums. This procedure establishes the temporary RAF which is used by the kernal. It also defines a special function program and data for this program in special nodes in the RAF.
Arguments: A - Nameof
(^) textfile
B - Top
margin. Defaults to 3. (A screen-editor message displays)
C - Bottom
margin. Defaults to 23.
D - Line
length. Defaults to 79. Text lines that exceed this
length are
reformatted by; 1st - stripping trailing spaces,
2nd - stripping
leading spaces, 3rd - breaking line into
two or more
lines.
E - Left
margin. Defaults to 0. When added to line length
cannnot exceed
79.
F - Has value
"D" if display only, otherwise display and edit
is assumed. If F="Q", then copy queue will be
preserved from
last use of
editor.
G,H - Name of DPM
and element where additional on-line help
documentation is
defined.
I - (optional)
COLOR only; override special editor functions:
Q(special.func.pgm,D(key.ascii,key.ascii,...),argument)
I|2 is saved in
!Z.ARG for use by program in I|0.
Defaults to
Q(Z.text.ed.spec.fn.keys,D(148,149,164),"")
J - (optional).
Indicates the maximum number of lines for that file
Returns: 1 if text has been edited, otherwise nil.
Posted: August 03, 2001