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1991-09-19
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- View version 1.3 -
---------------------------------------
- © Copyright 1991 Jaba Development -
- written using DICE C by -
- Jan van den Baard -
---------------------------------------
DISCLAIMER
----------------------------------------------------------------------------
The author is not responsible for any damage caused by the use or misuse of
this documentation and/or the program(s) it describes. Any damage resulting
from the use or misuse of this documentation and/or the program(s) it
describes is the sole responsibility of the user her/him self.
----------------------------------------------------------------------------
COPYRIGHT
----------------------------------------------------------------------------
View, © Copyright 1991 Jaba Development. All rights reserved. This program
may be distributed non-commercially providing that the source code,
documentation, copyright notices and executable remain unchanged and are
included in the distribution. Also no more than a
!NOMINAL!
copy fee may be
charged for the distribution. This program is
FREEWARE
so no financial
donations are required ( The only thing I would like is a postcard from your
home town!). Any form of commercial usage is not allowed without my written
permission.
----------------------------------------------------------------------------
Some of you might be familiar with other versions of View. These versions
of View have been totally rewritten by me to run only under OS 2. The key-
commands have changed radically from the older versions of View. All the
key-commands
MORE
supports are supported by View plus a lot of new commands
where added.
View KeyMap commands :
Space
,
Pg Dn
->
This will go down one page of text (
MORE
). If there are not enough
lines left in the text to fill the screen this function will go
down 'x' amount of lines until the last line is displayed.
Backspace
,
Pg Up
->
This will go up one page of text (
LESS
). If there are not enough
lines left in the text to fill the screen this function will go
up 'x' amount of lines until the first line is displayed.
Return
,
Dn
,
Nk Dn
->
This will scroll the text up one line and display the next line of
text at the bottom of the screen.
Enter
,
Up
,
Nk Up
->
This will scroll the text down one line and display the next line of
text at the top of the screen.
<
,
Nk Left
->
This will display the first page of the text.
>
,
Nk Right
->
This will display the last page of the text.
/
,
F
->
This opens a little window in which a string gadget is located. In
this string gadget you can type a word or a sentence you want to
locate in the text. Once you are done you should press return and
the program starts to look from the first line on the screen for
the specified string. If the program finds the string in the text
it will be displayed inverse. The search is case sensitive.
N
/
P
->
This will look for the
N
ext/
P
revious occurrence of the word last
found. The search will begin from the point where the program had
found the string the last time you have called one of the search
routines. The search is case sensitive.
.
,
S
->
This does the same thing as
/
,
F
with the exception that the search
will be case insensitive.
CTRL+N
/
CTRL+P
->
This does the same thing as
N
/
P
with the exception that the search
will be case insensitive
CTRL+L
,
R
->
This will redisplay the text on the screen in the (unlikely) event
that the display has been damaged for one or the other reason. This
has been featured to keep it all compatible to
MORE
.
%
->
This opens a little window with an integer gadget in it. In this
integer gadget you can type the percentage (0 to 100) of the file
you want to jump to.
E
->
For this to work you must use
SetEnv
to set-up an environment
variable called
EDITOR
. For example, if you normally use dme as your
editor and this editor is located in the C: directory you should
type the following in the shell: SetEnv EDITOR=C:Dme. If the
environment is set up correctly the program will run the editor
with the file currently in memory. The program looks through the
DOS resident list first to see if the editor is resident. If not it
will try to load the editor from disk.
NOTE: The editor may NOT be
crunched !
L
->
This opens the ASL FileRequester for you to select a file you want
to read. When you are done select
Load
and, if everything went OK,
after the loading is done the first page of the file you have
selected is displayed.
J
->
This is a feature not found in many of the other ASCII file viewers.
This will jump to the position where the program has found a string
the last time one of the search routines where called. It's a
feature I use a lot.
B
->
This puts View to sleep. The program closes the screen and sets up
an input-handler just ahead of intuition which will monitor for
wake-up calls (See below). The text in memory will be lost.
CTRL+B
->
This does the same thing as
B
with the exception that the text will
stay in memory and will be available when View is signalled to
wake-up again.
LSHIFT+CTRL+D
->
This will dump the page currently on the screen to the printer. It
uses the printer.device so make sure that it's set correctly. While
the printing is in progress a little window is in the screen's top
left corner. Closing this window will abort the printing. Once you
have stopped the printing the printer goes on until it's buffer is
empty. You can continue reading the file while the printing is in
progress. It is not possible to put View to sleep, quit or to load a
new file while the printing is in progress.
LSHIFT+CTRL+P
->
This will dump the complete text in memory to the printer. The same
window as with
LSHIFT+CTRL+D
pops up to enable you to stop printing.
H
,
HELP
->
This puts some information about the author and the available key-
commands possible with this program.
Q
,
CTRL+C
,
ESC
->
This is a nasty one. Pressing any of these keys will quit View.
Fn
->
This enables you to mark blocks in the text in memory. This block
marking goes in two fases. The first time you press 'F1' the first
line on the screen will be the first line of text block #1. When you
press 'F1' again the last line on the screen will be the last line
of text block #1. Only when you have marked the first and the last
line of a text block the block will be marked. It's possible to mark
10 blocks in a text (F1..F10).
SHIFT+Fn
->
This will unmark text block #
n
making it free to mark another text
block.
CTRL+Fn
->
This will jump to the first line of text block #
nm.
LSHIFT+CTRL+Fn
->
This will dump text block #
n
to the printer. The printing window is
opened to enable you to stop the printing. You can continue to read
the file while the printing is in progress.
LALT+Fn
->
This will open the ASL FileRequester in which you can select a name
under which you can save text block #
n
.
When View is sleeping :
There are three wake-up calls the input-handler of View will catch
which are all introduced with :
LEFT ALT + LEFT AMIGA
Pressing these keys in combination with :
Q
will quit View while it is asleep.
V
will pop up the main screen and display the text if
remembered or otherwise put up the ASL FileRequester for you
to load a file.
F
will erase the text, if remembered, from memory.
Starting View :
You can start View from either the CLI/Shell or the Workbench. To start
View from the CLI/Shell you must type :
View [path|filename]
Where "filename" is an optional name of the file you want to read or an
optional pathname in which the FileRequester will start to look for files.
To start View from the Workbench you can either double-click it's icon or
an icon of a file that has it's DefaultTool set to View.
Requirements :
View requires Kickstart 2.0 to run. Also a copy of the "
nofrag.library
" is
required to be in the LIBS: directory of the boot disk. If you also have
the "
powerpacker.library
" in the LIBS: directory View is able to read
files crunched with PowerPacker. You will need the
REGISTERED
version of
DICE to recompile the source code. Also you need to make registered
libraries of the "powerpacker_lib.fd" and the "nofrag_lib.fd" files using
"fdtolib". "fdtolib" comes with both the registered and freeware versions
of DICE. When you use View to read PowerPacker crunched files make sure
that you have set-up 'T:' as a logical device. If not try to add the
following two lines in your startup-sequence :
MakeDir RAM:T
Assign T: RAM:T
Credits
Credits must go to Matthew Dillon for his wonderfull DICE C compiler and
his DME editor and DMouse and...and...and..., Thanks Matt! By the way,
you should register to DICE because it's the best deal you'll ever make!
Credits also must go to Nico François for his PowerPacker and his
powerpacker.library. You should order a copy of "PowerPacker professional"
TODO (perhaps...someday....when I feel like it.......)
o Making View automatically detach itself from the CLI. How about a auto-
detach "_main.c" Matthew ?
o Multiple texts. (Is this really necessary....(?))
o Putting View to sleep upon startup.
o Background process loading/displaying.
o Why don't you give me some ideas.....
Notes :
View does not scatter memory because it uses the "
nofrag.library
" to
allocate the memory for the text. It is not possible to put two or more
copies of View to sleep at the same time. All escape sequences supported
by the console.device are supported by View. If the first character on a
line is a FormFeed View will translate it into F. The repeating of the
keys is handled in a way that View will never execute a function more than
once after you have released the keys. View automatically adapts itself to
the standard screen resolution and system font. View always displays one
column less than there would actually fit on the screen. This is because
the console.device uses a cursor, which is invisible in View, that forces
the display to scroll when it hits the bottom-right corner of the screen.
You should use LEFT_AMIGA+M/N to switch screens because View it's screen
has no depth gadget.
View makes use of the "powerpacker.library" if available. This library
can be found on FISH 414 and is © Oct 1990 by Nico François.
History :
1.0
- Initial version. (let's see how it goes!)
1.1
- The temporary decrunched file did not get written
to "T:". This has been fixed.
The Enforcer complained when View was started from the
CLI or Workbench without any arguments. This has been
fixed.
View now has a much improved filename parser which
recognizes and parses the arguments for the
ASL-FileRequester.
1.2
- View now starts to look for a string from the first
line on the screen. This seems to be the standard
and it is less confusing.
View now offers the possibility to save the text blocks
to a file.
1.3
- View now supports ECS screen modes like SuperHires.
Bug reports, flames, constructive criticism (I hope I spelled this right),
PD programs, ideas to the following address :
Jan van den Baard
Bakkerstraat 176
3082 HE, Rotterdam
Netherlands