Trailing-Edge
-
PDP-10 Archives
-
decuslib20-04
-
decus/20-0135/03/vided.add
There are 2 other files named vided.add in the archive. Click here to see a list.
Jacob Palme 1978-01-29 Revised: 1979-03-18
ADDITIONS TO VIDED IN FEBRUARY - MARCH 1979 (TO VERSION 4A)
The algorithm for the warning message when pages are too long is
improved for files with extensions beginning with ".VI". For such
files, lines beginning with ".L" and ".U" are only counted as half
lines, and lines beginning with ".+", ".&" or "._" are not counted
as all. This corresponds to VIDEDP postprocessing.
The &I-command works in a new, more natural manner for terminals
accepting "Insert-character"-codes: at present Volker 414H and
Elite 3025.
The function keys PF1-PF8 on Volker 414H and Elite 3025 now
correspond to eight common VIDED commands.
A new command &-X to move to the first written position of a line.
Negative argument allowed to the &Z-command for backward scrolling.
Works especially nice for terminals with built-in backward
scrolling: at present Volker 414H and Elite 3025.
Better protection against line numbers which are not monotonously
increasing for line numbered files.
IMPROVEMENTS IN VIDED MADE IN DECEMBER 1978 - JANUARY 1979 (TO VERSION 3F)
Built-in knowledge has been added to VIDED for terminals of the
models Digital VT100, ADM 3A and Volker-Craig 414H (similar to
Hazeltine 1510). For the Volker-Craig 414H, VIDED uses the Insert
Line and Delete Line control codes to improve speed. The keyboard
keys for Insert Line, Delete Line, Insert Character and Delete
Character can also be used.
/AUTOBACKUP:20 (automatic file backup for every 20 lines written)
is now default in VIDED. To get no automatic file backup, write
/AUTOBACKUP:0.
VIDED now assumes /SWEDISH (Swedish language texts) for files
with the extension .SWE or .VIS.
A new VIDED command &TC will remove one single tabulator setting
at the cursor column.
ADDITIONS TO VIDED 1978-10-29
&nPT (PAGE TOP) COMMAND AND &nPE (PAGE END) COMMAND
The "PT" command can be used to find the top of a certain page, and
the "PE" to find the end of a certain page.
> IF no argument is given ("&PT" or "&PE") then the top or bottom of
the current page is found.
> If the argument is an unsigned integer, then the top of the page
with that number, counted from the beginning of the file, is found.
Example: "&5PT" will find the top of page 5.
> If the argument is a signed integer, then the n:th page counted
from the current page is found. Example: "&+5PT" will find the top
of the 5th next page, "&-5PT" will find the top of the page 5 pages
before the current page.
&P (NEXT PAGE) COMMAND
This is a short form for the "&+1PT" command, that is to move to
the top of the next page.
&PF (PAGE AT END OF FILE) COMMAND
This command will find the end of the last page of the file.
&FB (FILE BACKUP) COMMAND
This command will create a backup copy of the text you have just
edited, and then return you to the point where you exited from
VIDED. If the computer is unreliable, this command should be used
at least every 15th minute to avoid information losses.
The first backup file in each VIDED session is given the same file
name as the input file, but with the first letter in the extension
changed to Q. Later backup files will have the two first letters of
their extension changed to QQ.
Example: If the input file is FILE.EXT, then the first backup file
will have the file name FILE.QXT and later backup files during the
same VIDED session will have the file name FILE.QQT.
Note: The "&PE" and "&PT" commands will also create a new backup,
if used to move backwards to previous pages in the edited file.
NOTE ON SYLLABLE-DIVIDED WORDS
If a filling or justifying command is used on a text which already
has been divided, that is contains lines ending with a dash, then
VIDED will ask you what do do with each such dash. Three courses
are open to you:
COMMAND ACTION
R(emove) Remove the dash from the text (default action).
K(eep) Keep the dash as a connector like the dash in "DEC-10".
S(plit) Put a space after the dash like in "pre- and post-
processing".
PAGE 2
NEW FEATURES OF VIDED 2D, 1978-05-14:
VIDED can now handle Volker D404 terminals. Terminal model
is indicated to VIDED by a textual terminal model number
instead of a number below 100. The present terminal model
numbers accepted are the text not in parenthesis below:
Input terminal type: (Infoton) vista (or vistar) sattelite,
(DEC) vt52, Minitec, Teletec, (Tandberg) TDV 2000, (Elite)
2500, 1520, 1521, 3025, (Beehive) B100, (CDC) S713-10, (Volker)
D404, (Some other) display terminal(s).
New switches to VIDED in the command or the SWITCH.INI file
are /DCA to get direct cursor addressing, /-DCA to avoid
direct cursor addressing, /ALF for a terminal with built-in
auto-lf for carriage returns (will probably not work).
NEW FEATURES OF VIDED 1978-01-29:
SUMMARY: The &W, &S and &N commands can now take a numerical
argument for repeated word removals or searches.
The &U, &D, &V, &J, &K, &G and &I commands can be applied with
one operation on several successive lines using the new &*
command. This can be very useful when handling multi-line
tables and formulas.
NUMERICAL ARGUMENT TO THE &W, &S AND &N COMMANDS
&nW COMMAND
The &nW command will remove n previous words.
Example, you have the text:
This is a test text
^
And apply the command &3W, getting the result
This is
^
&nS COMMAND
The &nS command will search for the n-th occurence
of the search string. Example, you have the text:
This is a test text.
^
The VIDED command &3s & will find the third next space,
giving:
This is a test text.
^
&nN COMMAND
This is the same as &nS for the &N search command.
2.12 MULTI-LINE APPLICATION OF VIDED COMMANDS
For the VIDED commands &U, &D, &V, &J, &K, &G and &I, preceding
them with * will cause the commands to be repeated for several
succeeding lines.
Example, you have the text:
===== &4*2D will give you: === while &4*2V == ===
= ^ = = = will give you: = =
= = = = = =
===== === == ===
You can either explicitly give a number in front of the *, or
just write &* without any number. In the latter case, VIDED has
two ways of deciding how many lines to apply the command to.
The first rule is that a set of of lines all beginning with a
dot will be regarded as a group to be treated:
Example, you have the text:
.U 2 2
.U a + b
. x = y + -------
.L ^ z
.L
The VIDED command &*5V will give you
.U 2 2
.U a + b
. x = y + -------
.L ^ z
.L
Second example, given the text:
.U 2 2
.U a + b
. x = y + y + -------
.L 1 2 z
.L ^
The VIDED command &*6D will give:
.U 2 2
.U a + b
. x = y + -------
.L z
.L
Note that all the lines of the formula are shifted with
only one VIDED command.
The SUBSUP program will remove the ".U", "." and ".L" in front
of the lines. SUBSUP will also give half line steps for lines
preceded with .U and .L, provided that your printer understands
the control code <ESC>U to give half a line step.
If there is no such group with dots in the first column,
the *-ed command will repeated on all lines left on the screen.
&n*U COMMAND
Example, you have the text:
1976 1978 1979 1980 1981 1982 1983 1984
---------------------------^-------------------------
100 150 200 300 300 340 450 120
200 300 350 230 340 350 560 340
400 450 700 1200 1345 2345 2380 4560
The command &5*U will transform this text to:
1981 1982 1983 1984
^-------------------------
300 340 450 120
340 350 560 340
1345 2345 2380 4560
&n&K COMMAND
With the same initial text as in the previous example,
&5*K will get you:
1976 1978 1979 1980
---------------------------
100 150 200 300
200 300 350 230
400 450 700 1200
&n&I COMMAND
Given again the same initial text, the &5*i!& command
will give you
1976 1978 1979 1980 ! 1981 1982 1983 1984
---------------------------!--------------------------
100 150 200 300 ! 300 340 450 120
200 300 350 230 ! 340 350 560 340
400 450 700 1200 ! 1345 2345 2380 4560
&n&G COMMAND
Assuming that Q-register X contains the single character !,
&5*GX will with the same initial text give you:
1976 1978 1979 1980 !1981 1982 1983 1984
---------------------------!-------------------------
100 150 200 300 ! 300 340 450 120
200 300 350 230 ! 340 350 560 340
400 450 700 1200 !1345 2345 2380 4560
The &nG COMMAND can be used to rapidly create a table.
Example, assume you have the following text:
-------------------------------------------------
! ! ! ! ! ! !
-------------------------------------------------
If you put the last two lines of this text into a qregister
"row" then the VIDED command &8*Grow can get you:
-------------------------------------------------
! ! ! ! ! ! !
-------------------------------------------------
! ! ! ! ! ! !
-------------------------------------------------
! ! ! ! ! ! !
-------------------------------------------------
! ! ! ! ! ! !
-------------------------------------------------
! ! ! ! ! ! !
-------------------------------------------------
! ! ! ! ! ! !
-------------------------------------------------
! ! ! ! ! ! !
-------------------------------------------------
! ! ! ! ! ! !
-------------------------------------------------
! ! ! ! ! ! !
-------------------------------------------------
&n*D AND &n*V commands
The &n*D and &n*V commands can be used to shift part or whole
of the screen contents to the left or right. Example, given:
^ -------------------------------------------------
! ! ! ! ! ! !
-------------------------------------------------
! ! ! ! ! ! !
-------------------------------------------------
! ! ! ! ! ! !
-------------------------------------------------
The VIDED command &7*8D will then move the box to the right:
-------------------------------------------------
! ! ! ! ! ! !
-------------------------------------------------
! ! ! ! ! ! !
-------------------------------------------------
! ! ! ! ! ! !
-------------------------------------------------
while &7*8V will give you:
-------------------------------------------------
! ! ! ! ! ! !
-------------------------------------------------
! ! ! ! ! ! !
-------------------------------------------------
! ! ! ! ! ! !
-------------------------------------------------
&n*nJ COMMAND
I am not sure of any useful application of this command.
But here is an example of what might happen, given the
text:
This
^ text
will
be
justified.
&5*1J will convert this text to:
This
text
will
be
justified.