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43,50463/03/vided.blb
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Jacob Palme VIDED.VIB 1979-03-24 Revised: 1979-04-07
Swedish National Defense Research Institute
S-104 50 Stockholm 80, Sweden
Version 4A of the video editor VIDED is now available.
VIDED is a general-purpose display-oriented text editor for the
DEC-10 computer. VIDED is suitable for the editing of source pro-
gram text, documents, reports, tables, semi-graphic pictures etc.
Restrictions are (i) the edited text may not contain lines longer
than the screen width, (ii) other control characters than carriage
return, line feed and form feed may not appear in the edited file.
Some features of VIDED:
> A basic set of commands makes a display terminal, connected to the
DEC 10, work like an advanced so called word processing machine.
> No postprocessing with RUNOFF is necessary, since most of the fea-
tures of RUNOFF are built into VIDED.
> Special features to simplify the editing of tables, source language
text, semi-graphic pictures and two-dimensional mathematical for-
mulae.
> VIDED has an automatic backup facility to save you from losing work
at machine failures.
> Can handle files both with and without line numbers.
> Has been tested on the following terminal models:
Infoton vista, vistar sattelite, i 200, Digital vt52, vt100,
Minitec, Teletec, Tandberg TDV 2000, Elite 1520, 1521, 2500, 3025,
Beehive B 100, Volker-Craig 404, 414H, Adm 3a, CDC S713-10.
VIDED is in many cases easy to adjust to other display terminals,
often without any need for program changes.
> VIDED can take advantage of terminal control codes like direct
cursor addressing, erase-to-end-of line, delete line, insert line,
if they are available, but will also work on terminals which do not
have these features.
> VIDED works well even on heavily loaded computers with several
seconds of response time. Such computer sites cause problems to
many video editors.
> Full source files for VIDED are available on the VIDED distribution
tape.
VIDED version 4A, which was ready in April 1979, has been sent to
the DECUS library. Note that it may take some months after this
before the program is available from the DECUS library. (Earlier
VIDED versions available in the DECUS library are not recommended.)
VIDED is also available directly from the author for a price of
1000 Swedish kronor (about 250 US dollars), including 800 BPI MAG-
tape but not postage. Indicate in your order if you want the tape
by air or surface mail. VIDED has been heavily tested by many
users, but no responsibility is taken for errors which may still be
there.
VIDED - A DISPLAY ORIENTED TEXT EDITOR PAGE 2
VIDED - A DISPLAY ORIENTED TEXT EDITOR
-------------------------------------------------------------------
! ABSTRACT !
! !
! The main principle of VIDED is that the screen on the display !
! will always show the modified text immediately after each edit !
! operation. The full screen is used to show a segment of the !
! edited text. The users will thus get an immediate feedback of !
! the result of their operations and can correct the text again !
! if necessary. !
! !
! VIDED replaces both an ordinary text editor and a paragraph and !
! page formatter like RUNOFF in one editor. You need not post- !
! process your text with RUNOFF. !
! !
-------------------------------------------------------------------
VIDED version 4A has been tested for the following terminal models:
Input terminal type: (Infoton) vista, i200, (vistar) sattelite,
(DEC) vt52, vt100, Minitec, Teletec, (Tandberg) TDV 2000,
(Elite) 1520, 1521, 2500, 3025, (Beehive) B100, (CDC) S713-10,
(Volker) 404, 414H, Adm3A, (Other) display.
VIDED will also directly work for many other display terminals. In
that case, you set VIDED up for a new terminal by just pushing the
cursor control keys on the terminal.
VIDED can only be adjusted to those display terminals where the
terminal can send to the computer and receive from the computer
control codes to move the cursor up, down, left, right, to the home
position and to erase the screen.
Special features of VIDED:
> Justification command to get even paragraphs after adding or dele-
ting text giving uneven lines.
Example:
Text before editing: John and Mary went down
to the station to buy a
ticket.
Text after addition: John and Mary took the tram down
to the station to buy a
ticket.
Text after justification: John and Mary took the
tram down to the station
to buy a ticket.
> Automatic date on the first page (see top of this page) and headers
and subheaders on succeeding pages with correct page numbers in the
header. This facility is optional.
VIDED - A DISPLAY ORIENTED TEXT EDITOR Page 3
> Features for copying vertical and horizontal lines and boxes to
simplify the production of tables, flow diagrams etc. Example:
----------------------------------------------------------
! How to answer ! Fact --> ! Yes ! No ! Neither !
! -----------------------------------------
! questions and ! Question ! Yes ! No ! I do not !
! -----------------------------------------
! statements: ! State- ! I ! Not ! Accepted !
! ! ment ! know ! possible ! !
----------------------------------------------------------
> Free movement of cursor around the screen to simplify the produc-
tion of character pictures. Example:
----------------------------------------------------------------------
! !
! ^ __________ !
! / \ ! ! !
! / o \ --------<---NO-<---! READY? !--->-YES--- !
! / o o \ ! !________! ! !
! / o o o \ V ! V !
! /_________\ _________ ________ ! ________ !
! ! O O O O ! ! ! ! ! ! ! ! !
! ! O O O O ! ! START !----->! EDIT !-->--- ! STOP ! !
! ! O O O O ! !_______! !______! !______! !
! ! O O O O ! ^ ! !
! ! O O O O ! ! V !
----------------------------------------------------------------------
!
1.00 -!- - - - - - oooooo - - - - - - - - - - - - - - - - - -
! oo oo
! oo oo
! o o
! oo oo
! o o
! o o
0.00 !--o------------------------o------------------------o---
! ^o o
! The curve intersects ! o o
! zero at this point ---->-- oo oo
! o o
! oo oo
! oo oo
-1.00 -!- - - - - - - - - - - - - - - - - - oooooo - - - - - -
!
VIDED - A DISPLAY ORIENTED TEXT EDITOR Page 4
\ ! /
------(*)------ ____________________
/ ! \ / \ /
! / \ \___/ /
(( )) / \ _(o.o) /
! \_____________/ ! / \/___,,!___/___
! \ / !_______________/________________ \
! (0) \ / (0) !=== === == = == \ \ _____
__!_______ ! _______!__ === === = / // \ \ /
----------.!.---------- === = / // \ \ /
/\ \__/ \__/ / \ == == ! !! \\\ \ /
! \___________/ / ! !! \ /
! / ___!___ /\\ \ _________/
\________! !________ /_________/ / \ ! \_______tm
/ \_____/ \/ (_(_(_(__/_____/ \\\\
(_(__(__(__) (_)__)__)__)
This lynx drawn by Tomas Moll using VIDED.
-------------------------------------------------------------------------------
VIDED FOR TEXT PRODUCTION, COMPARISON WITH RUNOFF:
COST: Since VIDED version 4A is mostly written in a high level
language (SIMULA) some commands in VIDED are more expensive than in
SOS or TECO. The commands for moving rapidly to a certain page in a
large file and for automatic file backup are however faster in
VIDED than in SOS and TECO. VIDED is also less expensive than the
combination of SOS or TECO with RUNOFF postprocessing.
ADVANTAGES: Immediate feedback of edit results, seconds after each
edit step, gives better control of the result than the
postprocessing with RUNOFF. The half-automatic nature of VIDED also
gives better control than the fully automated RUNOFF
postprocessing.
DISADVANTAGES: The half-automatic nature makes certain operations
slightly more difficult, but efficient commands are available to
simplify such operations. Example: "PA" command to append pages,
"PI" command to split pages, "PS" command to find pages which have
too many lines, automatic warning to the user when writing too many
lines per page.
VIDED has no built-in indexing facility, but a separate indexing
program will be made available instead.
VIDED FOR THE EDITING OF PROGRAM FILES, COMPARISON WITH SOS AND TECO
ADVANTAGES: The fuller control makes it easier to produce readable
structured programs with well disposed comments. The full display
of the edited program makes it easier to spot and correct
programming errors.
DISADVANTAGES: Somewhat more expensive to run, no program execution
facilities of the kind available in TECO.
VIDED - A DISPLAY ORIENTED TEXT EDITOR Page 5
EXAMPLES OF VIDED COMMANDS:
CURSOR MOVEMENT: Up, down, left, right, home, search, goto tab
setting, set and remove tabs, beginning of line, end of line.
PARAGRAPH JUSTIFICATION: Justify paragraph, justify n lines, set
left and right margin, divide word at syllable. Center line, shift
line or lines left or right.
TEXT INSERTION: Insert text, insert blanks, insert blank lines,
divide line.
TEXT DELETION: Delete characters, delete lines, delete last char-
acter, delete last word, delete last line.
MOVING AND COPYING: Store box in qregister, restore text from q-
register.
PAGE HANDLING: Scroll screen up and down, find top of page n, find
end of page n, find end of last page, advance or backup n pages,
divide page, append page, find too large page. Automatic handling
of page numbers, title lines and subtitle lines on each page
(optional).
FILE BACKUP: Automatic file backup at regular intervals or backup
at user command.
STATUS, HELP AND RESTORATION: Get status, type command summary,
restore jumbled screen.
MULTI-LINE ACTION: Repeat the same VIDED command on n succesive
lines.
EXITING: Normal exit, cancel exit.
UTILITY PROGRAMS: Associated utility programs available for index
preparation, left/right pagination on even/odd pages, underlining,
half-line steps for formulaes on Diablo 1620 terminals.
AVAILABILITY:
The VIDED distribution tape contains source program, EXE files and
a 62-page user manual. See the file READ.ME on the tape for more
information on the tape contents. The source programs can only be
compiled with DECsystem-10/20 SIMULA release 4 or higher. VIDED has
only been tested on a DECsystem-10 with KL10 and KI10 CPU.
Copyright (c) Swedish National Defense Research Institute. Copying
and use of VIDED Release 4A is allowed. Modification for local use
at your installation is allowed.
Jacob Palme, Swedish National Defense Research Institute,
S-104 50 Stockholm 80, Sweden.