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1997-09-08
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****************************************************************************
MultiView Mascot version 4.0.3 JSB Computer Systems Ltd
readme June 1997
Welcome to MultiView Mascot.
Please read this file as it contains information not included in the
printed documentation.
Contents:
1. KNOWN PROBLEMS AT THIS RELEASE
1.1 Wyse 50
1.2 Color terminals, black foreground does not work
1.3 Window Menu shows the wrong accelerator keys
1.4 Wyse 60
1.5 IBM 3164
1.6 Wyse 370
1.7 Using wide, deep, graphics, local printer and program status
line modes.
1.8 Marked text missing after Print Window.
1.9 Backtab on SCO console.
1.10 "Cannot update user license using system semaphores"
2. PROBLEMS FIXED AT THIS RELEASE
2.1 Release 4.0.3
2.2 Release 4.0.2
2.3 Release 4.0.1
3. NEW FEATURES AT THIS RELEASE
3.1 Release 4.0.3
3.2 Release 4.0.2
3.3 Release 4.0.1
3.4 Release 4.0.0
4. INSTALLATION & LICENSING
4.1 Hanging during installation
4.2 Upgrade path
4.3 Command file conversion
****************************************************************************
1. KNOWN PROBLEMS AT THIS RELEASE.
----------------------------------------------------------------------------
1.1 Wyse 50.
Although protected mode is now supported in the Mascot virtual
terminal it still cannot be supported on the Wyse 50. The reason for
this is that the Wyse 50 does not have character based attributes
but visible ones. Since Mascot cannot support visible attributes,
it uses the write-protect attribute (which is character based) and
the attribute which can be associated with it to provide support for
a single attribute.
Mascot is using the write-protect attribute for a different
purpose and therefore it cannot be defined as having its intended
functionality. Protected mode has no meaning as write-protect is
not available.
There is a Hot key clash on the Wyse 50 terminal with
Wordperfect when Wordperfect's menus are enabled. The key is ESC =, for
details of how to change the Accelerator keys please refer to the Mascot
Configuration Guide, section "Configuring Mascot accelerator keys" in the
chapter titled "Customizing the Mascot Environment".
----------------------------------------------------------------------------
1.2 Color terminals, black foreground does not work.
On terminals that support color, using the application command
"-cfore,black" to assign a foreground color of black does not work at this
release.
----------------------------------------------------------------------------
1.3 Window Menu shows the wrong accelerator keys.
On certain terminals Mascot's default accelerator keys have been
redefined, these changes are not reflected on Mascot's WindowMenu. This is
because this menu is not configurable on a per terminal basis.
Please refer to 2.12, Terminals Implementation specific notes, in the
techref.txt file for more information.
----------------------------------------------------------------------------
1.4 Wyse 60.
There is a Hot key clash on the Wyse 60 terminal with Wordperfect
when Wordperfect's menus are enabled. The key is ESC =, for details of how
to change the Accelerator keys please refer to the Mascot Configuration
Guide, section "Configuring Mascot accelerator keys" in the chapter titled
"Customizing the Mascot Environment".
When using this terminal with Wordperfect 5.1 editing printer.tst
(a demonstration file supplied with Wordperfect) the special character used
at the bottom of the vertical lines of a FIG box are not displayed
correctly.
----------------------------------------------------------------------------
1.5 IBM 3164.
Some applications may look different inside and outside mascot
on the IBM3164 because they are using ESC 4 H during initialization. This
attempts to set High Intensity which we cannot support in Mascot as it is
a Default Color mode command (Mascot uses Program Color mode). To overcome
this you may like to set the color for the application before it is evoked
using ESC 4 <Pa1> <PA2> <Pa3> (the Set Character Attribute Command) or
define the color for the application in the .mvw_color file.
----------------------------------------------------------------------------
1.6 Wyse 370.
Whilst using this terminal with Wordperfect 5.1 editing printer.tst
(a demonstration file supplied with Wordperfect) scrolling down beyond the
bottom line the whole screen scrolls up one line, including the line
containing the document name and current position, this should stay on the
bottom line of the display. The terminal was running in 24 line mode with
the WPTERM variable being set to wyse370epc.
----------------------------------------------------------------------------
1.7 Using wide, deep, graphics, local printer and program status line modes.
In cases where there is more than one possible sequence to terminate
one of the above modes, Mascot will only identify the termination sequence
specified by the relevant termcap mnemonic (W1, D1, TGE and DP). As it is
not possible to map these mnemonics problems may occur if applications use
the alternative termination sequence(s).
----------------------------------------------------------------------------
1.8 Marked text missing after Print Window.
Marked text is no longer present following a "Print Window"
operation. The clipboard buffer is common for the Cut & Paste and the Print
Window operations. Therefore, the marked text area is lost when a Print
Window operation is actioned.
----------------------------------------------------------------------------
1.9 Backtab on SCO console.
The backtab on the certain SCO consoles move's the selection bar
down two menu options instead of the usual one. This is due to the console
driver outputting the backtab sequence twice.
----------------------------------------------------------------------------
1.10 "Cannot update user license using system semaphores"
Mascot makes use of system semaphores so these should be enabled
before trying to run the product. You should tune your system to provide
this functionality. This may be described in Implementation specific notes
for the Operating System in the techref.txt file.
****************************************************************************
2. PROBLEMS FIXED AT THIS RELEASE.
---------------------------------------------------------------------------
2.1 Release 4.0.3.
A problem was introduced at version 4.0.2, whereby HSS child
processes incorrectly acquired the control terminal set on non-streams
based systems (SCO, IBM, and HP). This resulted in control signals
not being passed from the terminal driver to the child process. The
following symptoms may have been experienced:
- (intr) key not functioning with HSS.
- ps would report "Unable to get controlling terminal."
- HSS child process would show ? as the terminal line in the ps
listing.
When mascot was switching between degraded and non-degraded windows,
the terminal screen was apparently flashing due to the screen being redrawn
twice. The screen is now only redrawn once when switching between windows
that are degraded.
Alphawindow function keys would fail over slow connections.
Function key sequences were being written across multiple writes, to an
application's psuedo. This caused problems over slow connections running
inside a mascot window. Now characters are buffered and sent in one write
to the application.
The LIBPATH environment variable was omitted by mascot and
hss on AIX. AIX does not permit the LIBPATH variable to be passed to
processes when the "suid" bit is set and the owner of the program is not
running the process, however processes started by mascot receive the
LIBPATH environment variable correctly. To resolve this the LIBPATH
variable can be set by setting the MVWLIBPATH variable before running
mascot. Once running, mascot sets LIBPATH to equal MVWLIBPATH and
any processes created from mascot will then have the correct LIBPATH.
It is suggested that users place the following line in their .profile
file
MVWLIBPATH=$LIBPATH; export MVWLIBPATH
The grep command was not included in the install script list of
tools and so would not be checked to see if available. If not available,
serial number validation would fail with an invalid serial number.
Setting the per window value default to no status line for wyse60
was being ignored. The per window value for status line support on the
wyse60 has now been removed and is controlled by the mnemonic DL1ON.
Commenting out or removing this line causes the status line to be off
by default, when mascot is started.
---------------------------------------------------------------------------
2.2 Release 4.0.2.
Restricting the number of windows to be opened on a particular tty
in the mvw_ttys file was ignored.
The following fixes have been made to Window Watcher.
- Continuous watch in alarming state was not canceled after
selecting the window.
- Continuous watch for pattern only saw the first event.
- Watch for pattern failed to see the pattern if an application
outputted null characters
- Watch for pattern failed to match if the pattern was split across
multiple buffer reads of the applications psuedo.
- Watch for pattern allowed more then the maximum specified alarms.
- Text displayed on either the Status or Label line was sometimes
missed.
---------------------------------------------------------------------------
2.3 Release 4.0.1.
When Mascot was first run often a warning message "Command Files in
Wrong Format" appeared, when in fact the command files being used where ok.
This has now been resolved.
There was a problem when a screen redraw was called either from the
root menu or after a limited degrade, the function keys were being returned
to their default values and any key programming for the current session was
lost.
When unknown sequences where being encountered and mascots op buffer
contained legitimate sequences the unknown codes where being written
straight to the terminal before the buffered codes.
Problems using 80/132 switching with doc18 TE. When an application
put Mascot into degrade mode by sending the sequence to change screen
width Mascot waited until the sequence to return width was received to end
degrade mode.
Copy to file failing on AIX. Copy to file was failing to create
files, even when the user account had permission to create the file.
Mascot caused Wyse370 terminals to lose their colour settings.
Install failure under AIX 4.1. and HP-UX v10. The install script
was locking up when installing Mascot on AIX 4.1 and HP-UX v10. The script
tested that it was running in a bourne shell but on AIX 4.1 and HP-UX v10
the bourne shell is no longer present so the script looped forever.
Utmp updating and downdating on AIX. Mascot and HSS were not
writing to the utmp files correctly, therefore who and w were giving
erroneous results.
The trailing / on the end of prompt60 is now optional, previously if
a mail path had been specified without a / on the end then mail watch would
fail.
There was a problem using snapshot with a command line config file,
where the snapshot did not save its contents to the file. This has now been
resolved.
****************************************************************************
3. NEW FEATURES AT THIS RELEASE.
----------------------------------------------------------------------------
3.1 Release 4.0.3
A new submenu has been added to the root clients menu entitled
"Technical help". Selecting this submenu shows three items, one for the
readme and two for the mascot technical help guide, available as text or
HTML. The HTML version is only available if JSB's ALPHAbrowser is installed
on your system.
Two new error messages have been added to the .mvw_messages file
(50,51) which will be displayed if problems occur updating/downdating the
utmp file. If the update fails a message box is displayed and the utmp
updating is disabled for the current mascot session. The updating check
is not available on AIX or HP-UX.
The environment variable to set the users mail file for mail watch
can now be set in the .mvw_startup file. This means that by changing the
/usr/mvw/.mvw_startup file all users can have a mail watch set on for
their mail without having to create .mvw_startup files in each home
directory.
To enable this feature add the following line to the central copy of
.mvw_startup (usually in /usr/mvw).
"$MAIL" f.mail_watch
Should an environment variable other then $MAIL be required then change
$MAIL to the environment variable in use.
Notes :
1) the central settings will be overridden by any local .mvw_startup files
in the user home directory. If the local .mvw_startup file does not contain
a mail watch line then none will be set.
2) prompt 60 if set in the .mvw_messages file will override the default
mail directory, if $MAIL is used. Any other environment variable will cause
prompt 60 to be ignored.
3) When a snapshot is performed the mail file pathname will be saved in the
users .mvw_startup and not the environment variable name.
Support has been added for a redraw sequence which can be sent to
an application when, the application has caused mascot to do a limited
degrade e.g. switching to 132 column mode. The redraw sequence is sent to
the application when mascot has degraded and needs the application
to redraw its screen e.g. when the user switches to a mascot menu and then
back to the application window.
The redraw sequence is specified with the application command line with
the f.exec statement in the .mvw_usermenu file using the -r flag followed by
the redraw sequence.
e.g. The following statement would set Ctrl L to be vi's redraw sequence
when it caused mascot to degrade;
" Vi " -r^L f.exec vi
Support has been added for wyse60 page memory emulation in a mascot
window. Mascot now acts on ESCw0 and ESCw1. These are to select page 0 and
page 1 of screen memory on the wyse60. Two new mnemonics have been added
SELP0 and SELP1 which contain the sequences to switch to page 0 and 1
respectively.
----------------------------------------------------------------------------
3.2 Release 4.0.2
Mascot is now supplied in compressed format, to allow the software
to be distributed on single media. The files are supplied as follows:
mvw/install - Mascot Installation Program.
mvw/readme - This readme
mvw/Mascot.tar.Z - Compressed tar file containing Mascot binaries.
As with previous versions of Mascot type mvw/install to begin installation.
8bit characters are now supported on Wyse 60 terminals. To allow
8bit characters to be parsed remove NEBC from the wyse60 section of your
mvw_termcap file.
----------------------------------------------------------------------------
3.3 Release 4.0.1.
Mascot now supports the extended vt420 function key programming
commands. To enable mascot to distinguish between terminals i.e. vt220 that do
not support the extended format for function key programming but do support
the normal format, a new boolean terminal capability has been added VTEK.
Including this in the terminal description enables support for the vt420
extended key programming.
Using mascot -l now shows the verbose screen as in -v and then exits,
the license count is not updated while using -l so the user count may
show 0 users on the system. A transparent printer can still be created
using -p to test that this function works ok and display the printer name.
The printer is deleted straight away when mascot exits
Mascot now detects to see if Mascot is already running to stop users
running Mascot within Mascot.
Details of all command files being used are now displayed when
mascot -v is used.
When using command line options you can now specify multiple options,
now possible to do mascot -bc.
New entry of AT386-ie added in mvw_termcap to support Unixware 2.0
console. Graphics characters are redefined for drawing borders etc. and the
entry is chained to AT386.
----------------------------------------------------------------------------
3.4 Release 4.0.0.
The features included here are covered in detail by the
documentation. In summary they are,
The main functionality added at this release is Watcher. This allows
for the monitoring of events in background windows and file modifications
and notifies the user of an event occurring. All aspects of monitoring
events and notification to the user of these events are fully configurable.
See the chapter Watcher in the Configuration Guide for more details.
****************************************************************************
4. INSTALLATION & LICENSING.
----------------------------------------------------------------------------
4.1 Hanging during installation.
Where the systems resources are not sufficient the installation of
Mascot may sometimes hang. e.g. system memory, disk space etc.
----------------------------------------------------------------------------
4.2 Upgrade path.
Mascot has three different types of license, an Educational license
which expires after 30 days, a Demonstration license and a Live license.
This is the valid upgrade path,
1. Educational
2. Educational increment
3. Demonstration
4. Demonstration increment
5. Live
6. Live increment
****************************************************************************
4.3 Command file conversion.
If you have upgraded from Mascot v3.3 your central (usually /usr/mvw)
'mascot.rc' command file will be converted to the new command file format
during installation of Mascot v4. If you have other 'mascot.rc' command
files on your system and you want to convert these to the new format, you
can do this by running the supplied conversion program as follows:
/usr/mvw/bin/mvw.convert filename
Where filename is the name of the mascot.rc type file. The file can
be prefixed by a pathname if you require. The new command files will be
created in the same directory as the file 'filename'.
***************************************************************************