Provided by: mgt_2.31-7_amd64 
NAME
mgt - game record display/editor for the oriental game of go
SYNOPSIS
mgt [-m filename] [-s] [-t] [files]
DESCRIPTION
Go is an ancient oriental strategy game based on the capturing of territory. The players alternate
putting stones on the board, trying to surround as many empty intersections as possible.
Mgt allows the user to examine Go game tree files created through the Macintosh(tm) programs Smart-Go
(tm) or Go Explorer (tm). Mgt also has basic Go game tree editing capabilities and may be used to create
or edit game tree files. The on-line material provided by a rather extensive and growing database allows
many hours of instructional enjoyment of various studies and tutorials concerning the game of Go.
Mailgo is a utility which manages E-mail Go games using mgt as the Go board editor. It is included in
the mgt package.
The mgt program was originally developed to be a companion for the series, "From My Go Teacher", archived
bsdserver.ucsf.edu for ftp. Also available is the Internet GO Board communications program, 'go', also
by Greg Hale, which connects up two terminals in real-time anywhere in the world, and the clients for the
Internet Go Server.
COMMAND LINE OPTIONS
-m filename
Invoke a set of options used by the mailgo program for managing email games. If a filename is
specified for loading (see below), the game record is loaded, and mgt automatically moves to the
end of the main variation of the game record. The game can be modified without confirmation. If
the game record has been modified, it will be automatically saved, on exit, to the filename
specified after the -m and mgt will return success (zero). If the game record has not been
modified, or has not been allowed to be saved, then mgt will return failure (nonzero).
-s Change save format used to write save files. The default save format is the long format Smart-Go
file. Using this option results in short format Smart-Go files.
-t Invoke tutor mode where you select variations by playing on the board. The key for making a move
has special behavior in this mode. See the section on the "space or 0" keyboard command for a
description.
files These are the files to be loaded. The Unix and IBM version support wildcards. If no file is
specified, mgt loads a blank board. If you attempt to modify a file that was loaded, mgt will
prompt for confirmation the first time.
OPERATION
Mgt can be used to view and edit game records, or as an electronic game board for a two person game.
There are many keyboard commands which execute the various editing and display functions.
> Step down the game tree to the next move. Stop at the end of a variation and do not visit other
variations.
< Move back up the game tree. (Previous move)
. Go to the next node using a tree traversal which will visit all nodes. Sometimes the order of
traversal can be confusing.
, Go to the previous node -- the opposite of "." forward movement.
e Go to end of the current variation.
b Go to beginning of the game tree.
} Go forward like the "." command until a comment.
{ Go backwards like the "," command until a comment.
g Go to a specified node. Type in the desired node number.
] Move forward until there is a variation branch in the game tree.
[ Move backwards until there is a variation branch in the game tree.
k and i Scroll the game tree variation window up and down. A - at the top of the variation window, and a
+ at the bottom indicate that more variations are available.
j and u Scroll comment window up and down. A - at the top of the comment, and a + at the bottom indicate
that more comments are available.
# Load new file. Will prompt for confirmation if the current file has been modified.
r Load previous file. (Reverse through the file list)
f Load next file. (Forward through the file list)
w Write out Smart-Go file. Will prompt for a filename. The special filename * will save with the
current name (which appears in the upper right corner).
space or 0
Make a move. The current player turn is indicated by the > < around the captured stones on the
lower right. Normally, this adds the move to the game tree and moves to a new node. In tutor
mode, it checks the various game continuations. If one of them contains the move you made, it
moves to that variation. If not, it prints an error message. The game tree cannot be modified
in tutor mode.
p Pass. Enter a pass move.
o Other player. Changes whose turn it is, adding a token in the game tree to force the change
whenever this node is visited. If the player is forced by such a token, the current player turn
is indicated by } { characters on the lower right.
t Toggle stone color. Changes whose turn it is without adding any tokens in the game tree. This
will not work if the game tree has a PLayer token (generated by the o key) at the current node.
z Set/unset black stones.
x Set/unset white stones.
q or ESC.
Quit. q will prompt for confirmation. ESC will not prompt for confirmation.
v Create a variation below the current node. The variation will initially contain a null node.
You must move to that variation to make a move in it. If the "v" command is invoked at a node
which is at the end of a variation, variation "A" is created with a null node. Subsequent
invocations of the "v" command will create the "B", "C"... variations.
! Cut tree. Moves the current node and everything below it to a temporary holding buffer. (Moves
your location back to the parent of the node you are one when you invoke it.)
^ Paste tree. Pastes the temporary holding buffer in after the current node. Usually the
opposite of cutting the tree.
c Edit the current comment. The editor has two models of operation. The default model has been
vaguely designed after emacs. That means that the editor commands are either 'control-key' or
'escape-key'. The controls are configurable through an environment variable. The notation
"^key" is used to indicate control keys, and "]key" is used to indicate keys which should be
preceeded by the escape character.
On some terminals, instead of ESC-key, you can press Alt-key or Meta-key. (On the IBM version,
you can use the Alt key.) Under VMS, the ESC key does not work. VMS users may need to redefine
the edit keys.
The second edit model was vaguely designed after vi. That means that the editor has a command
mode for cursor movement, etc. and an insert mode for inserting text. The vi model editor starts
in insert mode. The ESC key changes mode from insert mode to command mode. If pressed in
command mode, the ESC key exits the comment editor and saves the comment. The letters below are
typed in command mode to obtain the specified function. To leave command mode and enter insert
mode, you must use the function which is listed as the insert mode command. This defaults to
'R'. To select the vi like mode of operation, put _ASCEDVI in your MGT environment variable.
Defaults are:
Command emacs vi
cursor up (previous line) ^P k
cursor down (next line) ^N j
page up (prev page) ]p ^B
page down (next page) ]n ^F
cursor left (back) ^B h
cursor right (forward) ^F l
beginning of line ^A 0
end of line ^E $
beginning of comment ]< H
end of comment ]> L
delete one character ^D x
delete to end of line (kill) ^K D
toggle insert mode ^I R
save comment ]z w
exit, don't save comment ^W q
Pressing c on a comment larger than the 120 lines allocated for comments will cause the extra to
be lost. Also, on terminals which generate IBM PC arrow key codes, the arrow keys will correctly
move the cursor within the comment editor. The arrow keys only work in the emacs based model.
d Delete node. Deletes the current node, replacing it with its child. If the current node has no
child, then clear the properties of the current node.
n Name the current node. You will be prompted for the name.
s Score the game. After selecting this, move the cursor around and remove the dead groups with 0
or space. You can undo one (and only one) kill with the u key. Pressing return will score the
game and print the (Japanese) score in the comment area. If you missed some dead groups,
continue removing them. Press q when you wish to exit scoring mode. You will be prompted to
either keep the score information as a comment for the current node or restore the old comment.
Ctrl-I Enter info mode. In this mode, the various informational properties of the current file are
displayed and may be edited. To edit an item, press the letter associated with it, and enter the
new text. This letter must be entered in upper case. To see a list of letters, press ?. The
comment window scrolling keys can be used to scroll the info display. The supported info
properties are: Size, Handicap, playerBlack, bLackrank, playerWhite, whIterank, Gamename, Event,
rouNd, Date, Place, Time, Result, gameComment, sOurce, User, Komi. The capital letters in this
list indicate which letter selects that info property.
Ctrl-T Toggle tutor mode. (See the section on space or 0 for explanation.)
Ctrl-W Toggle the format used for writing Smart-Go files between long and short.
Ctrl-L Refresh the screen.
Ctrl-F Save the current screen to a file.
? Display a help screen.
12346789
Move the cursor around. Assumes standard numeric keypad orientation.
ENVIRONMENT SETTINGS
All of the characters used for the commands and the display are configurable via environment variables.
For the ascii interface, use:
setenv MGT '_ASCCOM:q><.,eb}{][gwzxv\!lm#^cdn
spotrfLWTFI012346789kiju&
_ASCCHAR:#O:+-.+|-++++
_ASCINV _ASCED:PNpnBFAE<>DKIzO'
(command should appear all on one line with a
single space separating _ASC... from the
previous string.)
to get the default characters. (This is csh syntax. For other shells, the syntax will be different.)
Place this line in your .cshrc so the alternate characters are always in effect.
The _ASCCOM string allows you to change the keyboard commands. Upper case letters stand for control
characters.
The _ASCCHAR string specifies the display characters. For example, to use @ for black stones, change the
# to @ in the _ASCCHAR string. You need only include one of the two declarations ("_ASCCOM:" or
"_ASCCHAR:") if you only want to change the commands or characters but not both.
To set the default display type to inverse video, use _ASCINV in the MGT environment variable.
To set the comment editor commands, use _ASCED in the MGT environment variable.
For the _ASCED environment variable setting in the emacs based editor model, control keys are specified
with a capital letter, and ESC keys are anything which is not a capital letter. This is the key string
for the defaults: PNpnBFAE<>DKIzO. Note that ^V, ^O, ^C and ^Z are poor characters to use for anything
if you have berkeley unix because the berkeley tty drivers interpret these characters. The ^V character
is the quoting character which quotes the following character. You will need to press it twice for mgt
to see it. The other characters have to be quoted by first pressing ^V or mgt will not recognize your
keypress. You cannot use ^H or ^? for anything because the editor always interprets these as destructive
backspace.
For the _ASCED environment variable setting in the vi based editor model, no special processing is done
on the characters. In order to specify control keys, you must place actual control characters into your
environment string. The default string has two control commands (^B and ^F) defined. This is the
default: kj^B^Fhl0$HLxDRwq. The vi based editor model may be selected be including _ASCEDVI in the
environment variable.
If you wish to include control characters in your string, you can do this most easily by editing a file
which sets the environment. Vi can insert most of the control characters directly.
In all cases, when you set your own keys, you must set all of the keys, and they must appear in the
correct order. If you give assign the same key to different functions, then an arbitrary one will be
used by mgt and the other functions will be unavailable. If multiple contradictory specifications occur
in the mgt environment variable, the last that appear will be used by the program. Any option not
specified will assume the default values identified above.
With the IBM version, the same effects may be achieved under DOS 4.0 or DOS 5.0 with a SET command placed
in the AUTOEXEC.BAT file. Under previous DOS versions, quotes were interpreted literally and "|", ">"
and "<" characters have special meanings and thus cannot be put into environment variables with the SET
command.
Under VMS, the command is just MGT = "_ASCCHAR:..."
COMMENT FORMATTING
Comments are expected to consist of long lines, each of which is one paragraph. A single long line will
be formatted to fit the display. Line breaks will be ignored if they are preceeded by a space, but will
be respected otherwise.
DISPLAYS
All displays have in common the purpose of displaying a go tree.
A B C D E F G H S T
+--------------- ---+ -Suppose this is the second
19|. . . # . . . . . .|19| line of the comment. Since
18|. O O # # # O . . .|18| there is some more of the
17|. # # O O O O . . .|17| comment above us unseen,
16|. # O + . . . . . .|16| the - appears to the left
15|. # O . O . . . . .|15| of 'Suppose'.
14|. . # O . . . . . .|14|
13|. . # . . . . . . .|13|
12|. . . . . . . . . .|12|
11|. . . . . . . . . .|11| And here, when there is
10|. . . + . . . . . .|10| more of the comment
9|. . . . . . . . . .| 9| below, the '+'
8|. . . . . . . . . .| 8|+appears to our left.
7|. . . . . . . . . .| 7|
6|. . . . . . . . . .| 6| Node #173: Name
5|. . . . . . . . . .| 5|-B: variation 1 hit 'B' to see
4|. . . + . . . . . .| 4| C: variation 2 hit 'C'
3|. . . . . . . . . .| 3| D: variation 3 etc...
2|. . . . . . . . . .| 2| E: variation 4
1|. . . . . . . . . .| 1|+F: variation 5
+--------------- ---+ ? for help read long
A B C D E F G H S T
Black #11 at 'D19' #: 0 > O: 0 <
The bottom line indicates that Black has just made move #11. On the bottom right, the angle brackets
around the white stone indicate that it is White's turn. Above that, the word "read" indicates that the
Smart-Go file hasn't been modified, and "long" indicates that the default save format is the long format.
"Read" will change to "edit" if you modify the file, and it will say "tutor" if you enter tutor mode.
FILES
wrapmgt - prepare short format Smart-Go files for mailing
mailgo - email go game management
mgt2short - script to convert Smart-Go files to short format
RULES - an introduction to the game in Smart-Go format.
The From My Go Teacher tutorial lessons, and many professional game records all available at
bsdserver.ucsf.edu
Internet go, a program to play go over internet, available on bsdserver.ucsf.edu
Smart-Go.def, the Smart-Go format definition.
BUGS
Comment editing is limited to 120 screen lines.
Most, but not all, of the Smart-Go properties are supported.
Send bug reports to "adrian@bsdserver.ucsf.edu" or "hale@scam.Berkeley.EDU"
AUTHORS
Greg Hale
Jeff Boscole
Adrian Mariano (adrian@bsdserver.ucsf.edu)
Mike Dobbins (mdobbins@asns.tredydev.unisys.com)
SEE ALSO
rec.games.go - a newsgroup on the game
Graded go problems for beginners, vol 1-4, Ishi Press
In the Beginning, Ishi Press.
The Treasure Chest Enigma, Ishi Press.
9 July 1993 MGT(6)