Dec 062017
 
RView Shell v1.12 archive file shell.
File RVS112.ZIP from The Programmer’s Corner in
Category Utilities for DOS and Windows Machines
RView Shell v1.12 archive file shell.
File Name File Size Zip Size Zip Type
RVS.CFG 470 210 deflated
RVS.DOC 10788 4149 deflated
RVS.EXE 68780 40096 deflated
RVS112.NEW 682 408 deflated

Download File RVS112.ZIP Here

Contents of the RVS.DOC file


RVS-RView Shell, Version 1.12 06-Mar-94


Shell for viewing and extracting the contents of several archive types.
Calls on user-selectable external programs to extract and view. Currently
supported are ARC, ARJ, HYP, LZH, LZS, PAK, SQZ, ZIP and ZOO. Displays
either ZIP- or LZH-style compression ratios. Various sort options.

Contents:
=========
Purpose
Display
Syntax
Switches
Configuration
Commands
Pull-down menus
Contact

Purpose:
========
I've never been a fan of any of the existing archive shells. No criticism
intended, simply a matter of taste. On the other hand, there are times when
I find my own command-line RView program (RV) inappropriate. Thus, I
designed RVS to complement my use of RV, and to work the way I want it to.
My preferences probably don't even remotely resemble those of the
mainstream, so I don't expect RVS to become a mainstream archive shell.
It's a program which I find useful, and I offer it to others who may want to
share its use with me.

Since filename extensions are ignored in determining archive types, this
program may be used to determine the type of archive if the filename
extension is missing, or inappropriate.

RVS is a free program.

Display:
========
The program displays either in color or "black-and-white" based on the video
mode at program start-up. However, if the user has a color graphics card,
but no color monitor, the display may be improved by using the DOS command
"MODE BW80". Conversely, color mode may be forced on by using "MODE CO80".

A command-line switch is also available to force black-and-white mode (see
"Switches").

EGA/43- and VGA/50-line modes are supported. At program start-up, an
attempt is made to detect the actual number of lines on the screen, up to a
maximum of 50, and to adjust the display accordingly.

Refer to RV.DOC, distributed with the current release of RV, for a
discussion of RV's display (similar to that of RVS).

When viewing directories within archives, a two character indicator on the
right of the top status line shows both the type and sense of the sort. The
first character is N/E/D/O/P/R/U with the same meaning as for the /Sx
command-line switches (below). The second character is either a '+' or a
'-' to indicate Ascending or Descending, respectively.

Syntax:
=======

Usage: RVS [switches] [filespec]

If no extension is specified for "filespec", ".*" is assumed. If a valid
filename is specified unambiguously, the file is immediately displayed.
Either specifying "filespec" using wildcards, or specifying a drive or
directory name causes a scrollable directory window to pop up. Simply
typing the program name is the same as specifying "*.*".

Examples: RVS C: <- current directory of drive C:
RVS D:\ <- root of drive D:
RVS \PCPLUS\DL <- DL subdirectory of \PCPLUS

Switches:
=========

/A Alternate compression ratio. ZIP-style compression ratios are
displayed by default. Use this switch to display LZH-style
ratios. (Tip: Include this switch in RVS.CFG to always display
LZH-style ratios.)

/BW Black-and-White mode. Provided as an alternative to using DOS's
"MODE BW80" command.

/Fx Where 'x' represents 0/1/2/3, as follows:

F0 - don't filter (fastest/default)
F1 - check only for normal archive extensions
F2 - same as F1, but do a thorough check of .COM and .EXE files
F3 - check all files for valid archives (slowest)

/O[path] Output path for extractions ("out_path"). For use in conjunction
with the "%o" format specifier (see "Configuration"). If no path
is specified, the current directory is used. Also specifies which
directory to use for temporary extractions when viewing, if /T is
not used.

/Sx[-] Where 'x' represents N/E/D/O/P/R/U, as follows:

SN - Sort by Name (default)
SE - Sort by Extension
SD - Sort by Date/time
SO - Sort by Original size
SP - Sort by Packed size
SR - Sort by compression Ratio
SU - leave Unsorted

Appending a hyphen '-' to the above switches will reverse the
sense of the sort from ascending to descending.

/T[path] Temporary extraction path for viewing ("temp_path"). For use in
conjunction with the "%o" format specifier (see "Configuration").
This could point to a RAM-disk, for instance. This overrides the
directory implied by the "/O" switch when viewing.

Tip: When using the /O or /T switch, it might be better to end each "path"
designation with a backslash, '\'. Note that, if "C:\TEMP" is the name of
your temporary extraction directory, "PKUNZIP archive.zip D:\temp" will work
but "LHA e archive.lzh D:\temp" will not. For LHA, the trailing backslash
is mandatory.

Either '/' or '-' may be used to specify switches.

Entering an invalid switch causes the program to display a brief help screen
then exit.

Examples: RVS /h
RVS -?

Configuration:
==============
An optional configuration file containing user-selected default switches may
be created or edited with any editor or word processor which can save pure
ASCII text files. This file should be named "RVS.CFG" and placed in the
same directory from which RVS.EXE will be loaded (DOS 3.0 and above).

Switches, including switch options, may be separated by spaces or placed on
separate lines.

In addition to specifying "true" switches, RVS.CFG should also contain lines
assigning which commands to use for viewing extracted files, and which
commands to use for extracting files from archives.

The syntax for assigning the view commands is:

/V[ext]="command"

Where: "ext" is an optional filename to link to a view command. If
omitted, then the associated command is the default viewer for
unmatched extensions.

"command" should be set to the command line, including arguments, of
the view command you wish to run.

There may be several assignments of view commands in RVS.CFG, each linking a
different filename extension with a different command. Specifying
extensions is optional. A view assignment with no extension, i.e.
"/V="command" tells the program which viewer to use if the selected file's
extension isn't linked to a specific view command.

Tip: A maybe subtle consequence of this option to specify viewers based on
extensions is that RVS is able to "recurse" through archives included within
other archives, if "RVS %f" is linked to the appropriate archive extensions.
This capability may be limited by memory constraints.

"Command" should at least include the "%f" format specifier, which
represents the currently highlighted compressed file.

Example: /V="LIST %f"

The syntax for assigning the extract commands is:

/E="command"

Where: "" is "arc", "arj", "lzh", "lzs", "pak", "zip" or "zoo".

"command" should be set to the command line, including arguments, of
the extraction command you wish to run for that archive type.

"Command" would typically include both the "%a" and "%f" format specifiers,
which represent the archive name and selected compressed file, respectively.

The "%o" format specifier may also be embedded in extract commands. It
indicates where in "command" either "out_path" or "temp_path" (see
"Switches") should be inserted when "command" is executed. Please bear in
mind that some unarchivers may not support redirection of extractions to
different drives or directories.

Examples: /Earj="ARJ e %a %f"
/Elzh="LHA e %a %o %f"
/Ezip="PKUNZIP %a %o %f"

True switches should be placed on separate lines from those assigning
commands.

Incompatible switches used on the command line will override switches
included in RVS.CFG. Switches are evaluated from left to right.

A sample RVS.CFG file is included in the distribution archive for RVS, which
the user may edit to "customize" RVS's behavior.

Commands:
=========
While viewing the contents of an archive, the following commands may be
used:

Pressing or the letter 'H' will display a brief help screen summarizing
commonly used commands. Press any key to close the help window.

Pressing or the letter 'X' will cause the currently selected file(s) to
be eXtracted by the appropriate extraction program specified in RVS.CFG.

By "currently selected" is meant either any tagged files, or the currently
highlighted file, if no files are tagged.

Files may be tagged either individually or by wildcard selection. The
key may be used as a toggle to select and unselect individual files.
Pressing on an unselected file selects it. Pressing on a
selected file unselects it. To select a group of files using DOS-type
wildcards, press the plus ('+') key. This opens up an input window into
which a file specification may be entered. To unselect a group of files,
press the minus ('-'). This opens up an input window similar to the one for
selection. The suggested keys are the gray plus and minus keys found near
the numeric keypad of many keyboards.

Pressing or the letter 'V' will cause the currently highlighted file to
be extracted and displayed by the appropriate commands specified in RVS.CFG.
The extracted file will be erased after exiting the view program.

Pressing or the letter 'T' will toggle the display between the default
listing and one showing full pathnames. This command is only available for
supported archives types with paths stored.

Pressing or the letter 'O' will allow the user to edit "out_path" on
the fly. Useful for temporarily overriding the /O switch setting specified
either in RVS.CFG or from the command line.

Pressing or the letter 'P' or '/' will invoke the pull-down menu
system.

Pressing , or the letter 'Q' will exit the program.

Pull-down menus:
================
Listings may be sorted on-the-fly from the "Display" pop-up. Listings may
be sorted by Name, Extension, Date/time, Original size, Packed size,
compression Ratio, or left Unsorted. Listings are sorted in Ascending order
by default, but the sense of the sort may be reversed from within this menu.

Contact:
========

Raymond T. KayaCompuServe: 71230,2500
P. O. Box 1436Internet: [email protected]
Honolulu, HI 96806


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