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cmail.in
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cmail.in
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#! @PERLPATH@
## (configure will change the top line to the location of perl on your system)
#=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=#
## cmail: a tool to aid playing chess by email
## Copyright (C) 1993,2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016 Free Software Foundation, Inc.
##
## cmail is free software: you can redistribute it and/or modify
## it under the terms of the GNU General Public License as published by
## the Free Software Foundation, either version 3 of the License, or (at
## your option) any later version.
##
## cmail is distributed in the hope that it will be useful, but
## WITHOUT ANY WARRANTY; without even the implied warranty of
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
## General Public License for more details.
##
## You should have received a copy of the GNU General Public License
## along with this program. If not, see http://www.gnu.org/licenses/. *
##
## Email: [email protected]
## Snailmail: Evan Welsh
## Quadstone Ltd
## 16 Chester Street
## Edinburgh EH3 7RA
## Scotland
#=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=#
#=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=#
## Print verbose diagnostics for debugging
sub debug {
if ($DEBUG) {
local ($old) = select ; ## Remember selected output
select (logfile) ;
$| = 1 ; ## Keep it flushed
print @_ ; ## Print arguments
select ($old) ;
}
}
#=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=#
#=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=#
## Create a directory for storing games in if it doesn't already exist
sub need_chess_dir {
local ($old) ;
## ################################################################# ##
## Check for existence of the named chess directory
## ################################################################# ##
if (! (-d "$CMAILDIR")) {
## ############################################################# ##
## Ask user for confirmation if attached to tty
## ############################################################# ##
if (-t) {
$old = select ; ## Remember selected output
select (stdout) ; ## Write to standard output
$| = 1 ; ## Keep it flushed
print ( "CMail directory \"$CMAILDIR\" does not exist."
. " Create it? [y/q]: ") ;
$_ = <tty> ; ## Read response from tty
die "Bye!\n" if (/^[qQ].*/) ; ## Quit if q selected
select ($old) ; ## Re-select the old output
}
## ############################################################# ##
## Create a cmail directory or die
## ############################################################# ##
die "cmail: Can't create CMail directory: \"$CMAILDIR\"\n"
unless mkdir ("$CMAILDIR", 511) ;
print ( "Created cmail directory \"$CMAILDIR\".\n"
. "You can move it but remember to set the CMAIL_DIR"
. " environment variable.\n") ;
}
## ################################################################# ##
## Change to the $CMAILDIR directory whether newly created or not
## ################################################################# ##
die "Couldn't changed directory to \"$CMAILDIR\"\n"
unless (chdir "$CMAILDIR") ;
## ################################################################# ##
## Check for existence of the named chess directory
## ################################################################# ##
if (! (-d "$ARCDIR")) {
## ############################################################# ##
## Ask user for confirmation if attached to tty
## ############################################################# ##
if (-t) {
$old = select ; ## Remember selected output
select (stdout) ; ## Write to standard output
$| = 1 ; ## Keep it flushed
print ( "Archive directory \"$ARCDIR\" does not exist."
. " Create it? [y/q]: ") ;
$_ = <tty> ; ## Read response from tty
die "Bye!\n" if (/^[qQ].*/) ; ## Quit if q selected
select ($old) ; ## Re-select the old output
}
## ############################################################# ##
## Create a chess directory or die
## ############################################################# ##
die "cmail: Can't create archive directory: \"$ARCDIR\"\n"
unless mkdir ("$ARCDIR", 511) ;
print ( "Created archive directory \"$ARCDIR\".\n"
. "You can move it but remember to set the CMAIL_ARCDIR"
. " environment variable.\n") ;
}
}
#=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=#
#=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=#
## Parse command-line arguments
sub parse_flags {
## ################################################################# ##
## Set up defaults from the environment or from hard-wired constants
## ################################################################# ##
$SHOWC = 0 ;
$SHOWW = 0 ;
$OUTPUT_POS = $ENV{'CMAIL_OUTPUT_POS'} ;
$LOGFILE = $ENV{'CMAIL_LOGFILE'} ;
$MAILPROG = $ENV{'CMAIL_MAILPROG'} ;
$MAILPROG = "/usr/sbin/sendmail" if ( (-x "/usr/sbin/sendmail")
&& (! $MAILPROG)) ;
$MAILPROG = "/usr/lib/sendmail" if ( (-x "/usr/lib/sendmail")
&& (! $MAILPROG)) ;
$MAILPROG = "/etc/sendmail" if ( (-x "/usr/lib/sendmail")
&& (! $MAILPROG)) ;
$MAILPROG = "/usr/ucb/Mail" if ( (-x "/usr/ucb/Mail")
&& (! $MAILPROG)) ;
$MAILPROG = "/usr/ucb/mail" if ( (-x "/usr/ucb/mail")
&& (! $MAILPROG)) ;
$MAILPROG = "Mail" unless ($MAILPROG) ;
$HOMEDIR = $ENV{'HOME'} ;
$CMAILDIR = $ENV{'CMAIL_DIR'} ;
$CMAILDIR = $ENV{'CHESSDIR'} unless ($CMAILDIR) ;
$CMAILDIR = "$HOMEDIR/Chess" unless ($CMAILDIR) ;
$CMAILDIR = "~/Chess" unless ($HOMEDIR) ;
$NUM_GAMES = "?" ;
$NUM_WGAMES = "?" ;
$NUM_BGAMES = "?" ;
$TIME_DELAY = $ENV{'CMAIL_TIME_DELAY'} ;
$TIME_DELAY = 0 unless ($TIME_DELAY) ;
$PW_NAME = &get_pw_name () ;
$MY_NNAME = $PW_NAME ;
$MY_NNAME = $ENV{'LOGNAME'} unless ($MY_NNAME) ;
$MY_NNAME = $ENV{'USER'} unless ($MY_NNAME) ;
$MY_NNAME = "?" unless ($MY_NNAME) ;
$PGN_EVENT = "Email correspondence game" ;
$PGN_SITE = "NET";
$PGN_ROUND = "-";
$PGN_MODE = "EM";
$SEND_MAIL = 1 ;
$REMAIL = 0 ;
$LOAD_XBOARD = 1 unless $ENV{'CMAIL_NO_XBOARD'} ;
$REUSE = 1 ;
@TD_FLAGS = ("-td", $TIME_DELAY) ;
@NCP_FLAGS = ("-ncp") ;
## ################################################################# ##
## Define the usage string
## ################################################################# ##
$USAGE = ("cmail
[-h] [-c] [-w] [-[x]v] [-[x]mail] [-[x]xboard] [-[x]reuse] [-remail]
[-game <name>] [-(w|b|)games <number>] [-(me|opp) <short name>]
[-(w|b|my|opp)name <full name>] [-(w|b|my|opp)na <email>]
[-dir <directory>] [-arcdir <directory>] [-mailprog <mail program>]
[-logFile <file>] [-event <event>] [-site <site>] [-round <round>]
[-mode <mode>]") ;
## ################################################################# ##
## Overwrite defaults if specified on the command-line
## ################################################################# ##
@UNREC_ARGS = () ;
while ($ARGV = shift) {
$UNREC = 0 if ($ARGV =~ /^-/) ;
if ("$ARGV" eq "-h") {die ("Usage: $USAGE\n") ;}
elsif ("$ARGV" eq "-c") {$SHOWC = 1 ;}
elsif ("$ARGV" eq "-w") {$SHOWW = 1 ;}
elsif ("$ARGV" eq "-v") {$DEBUG = 1 ;
@DEBUG_FLAGS = ("-debug") ;}
elsif ("$ARGV" eq "-xv") {$DEBUG = 0 ;
$QUIET = 1 ;}
elsif ("$ARGV" eq "-mail") {$SEND_MAIL = 1 ;}
elsif ("$ARGV" eq "-xmail") {$SEND_MAIL = 0 ;}
elsif ("$ARGV" eq "-xboard") {$LOAD_XBOARD = 1 ;}
elsif ("$ARGV" eq "-xxboard") {$LOAD_XBOARD = 0 ;}
elsif ("$ARGV" eq "-reuse") {$REUSE = 1 ;}
elsif ("$ARGV" eq "-xreuse") {$REUSE = 0 ;}
elsif ("$ARGV" eq "-remail") {$LOAD_XBOARD = 0 ;
$SEND_MAIL = 1 ;
$REMAIL = 1 ;}
elsif ("$ARGV" eq "-game") {$PGN_GAME = shift ;}
elsif ("$ARGV" eq "-games") {$NUM_GAMES = shift ;}
elsif ("$ARGV" eq "-wgames") {$NUM_WGAMES = shift ;}
elsif ("$ARGV" eq "-bgames") {$NUM_BGAMES = shift ;}
elsif ("$ARGV" eq "-me") {$MY_NNAME = shift ;}
elsif ("$ARGV" eq "-opp") {$OPP_NNAME = shift ;}
elsif ("$ARGV" eq "-myname") {$MY_FNAME = shift ;}
elsif ("$ARGV" eq "-oppname") {$OPP_FNAME = shift ;}
elsif ("$ARGV" eq "-wname") {$WHITE_FNAME = shift ;}
elsif ("$ARGV" eq "-bname") {$BLACK_FNAME = shift ;}
elsif ("$ARGV" eq "-myna") {$MY_ADDRESS = shift ;}
elsif ("$ARGV" eq "-oppna") {$OPP_ADDRESS = shift ;}
elsif ("$ARGV" eq "-wna") {$WHITENA = shift ;}
elsif ("$ARGV" eq "-bna") {$BLACKNA = shift ;}
elsif ("$ARGV" eq "-dir") {$CMAILDIR = shift ;}
elsif ("$ARGV" eq "-arcdir") {$ARCDIR = shift ;}
elsif ("$ARGV" eq "-mailprog") {$MAILPROG = shift ;}
elsif ("$ARGV" eq "-logFile") {$LOGFILE = shift ;}
elsif ("$ARGV" =~ /^-(td|timeDelay)$/)
{@TD_FLAGS = ($ARGV,
shift) ;}
elsif ("$ARGV" =~ /^-noChessComputer$/)
{@NCP_FLAGS = ($ARGV,
shift) ;}
elsif ("$ARGV" =~ /^-[x]?ncp$/) {@NCP_FLAGS = ($ARGV) ;}
elsif ("$ARGV" eq "-event") {$PGN_EVENT = shift ;}
elsif ("$ARGV" eq "-site") {$PGN_SITE = shift ;}
elsif ("$ARGV" eq "-round") {$PGN_ROUND = shift ;}
elsif ("$ARGV" eq "-mode") {$PGN_MODE = shift ;}
elsif ("$ARGV" =~ /^-/ || $UNREC) {
push(@UNREC_ARGS, $ARGV) ;
$UNREC = 1 ;
} else {
die("cmail: Unrecognised flag \"$ARGV\"\nUsage: $USAGE\n") ;
}
}
## ################################################################# ##
## Assign a value to $ARCDIR if not specified on the command line
## ################################################################# ##
$ARCDIR = $ENV{'CMAIL_ARCDIR'} unless ($ARCDIR) ;
$ARCDIR = $CMAILDIR unless ($ARCDIR) ;
$ENV{'CMAIL_ARCDIR'} = $ARCDIR ; ## Make sure this is set for xboard
## ################################################################# ##
## Propagate some CMAIL variables through xboard to the cmail
## grandchild so that it uses the same important variables as this one
## ################################################################# ##
$ENV{'CMAIL_MAILPROG'} = $MAILPROG ;
$ENV{'CMAIL_DIR'} = $CMAILDIR ;
$ENV{'CHESSDIR'} = $CMAILDIR ; ## Make xboard use $CMAILDIR
$ENV{'CMAIL_ARCDIR'} = $ARCDIR ;
if ($LOGFILE) {
$ENV{'CMAIL_LOGFILE'} = $LOGFILE ;
} else {
$LOGFILE = "&STDERR" ;
}
## ################################################################# ##
## Work out how many games of each colour will be played
## ################################################################# ##
die "cmail: Illegal number of games: $NUM_GAMES\n"
if ($NUM_GAMES < 0) ;
die "cmail: Illegal number of white games: $NUM_WGAMES\n"
if ($NUM_WGAMES < 0) ;
die "cmail: Illegal number of black games: $NUM_BGAMES\n"
if ($NUM_BGAMES < 0) ;
if ("$NUM_GAMES" ne "?") {
if ("$NUM_WGAMES" eq "?") {
if ("$NUM_BGAMES" eq "?") {
$NUM_BGAMES = int($NUM_GAMES / 2) ;
}
$NUM_WGAMES = $NUM_GAMES - $NUM_BGAMES ;
} elsif ("$NUM_BGAMES" eq "?") {
$NUM_BGAMES = $NUM_GAMES - $NUM_WGAMES ;
}
} elsif ("$NUM_WGAMES" eq "?") {
if ("$NUM_BGAMES" eq "?") {
$NUM_GAMES = 1 ;
$NUM_WGAMES = 1 ;
$NUM_BGAMES = 0 ;
} else {
$NUM_GAMES = $NUM_BGAMES ;
$NUM_WGAMES = 0 ;
}
} else {
if ("$NUM_BGAMES" eq "?") {
$NUM_GAMES = $NUM_WGAMES ;
$NUM_BGAMES = 0 ;
} else {
$NUM_GAMES = $NUM_WGAMES + $NUM_BGAMES ;
}
}
die "cmail: Illegal number of games: $NUM_GAMES\n"
if ("$NUM_GAMES" eq "0") ;
die ( "cmail: Inconsistent numbers of games specified:"
. " $NUM_WGAMES + $NUM_BGAMES != $NUM_GAMES\n")
unless ($NUM_GAMES == $NUM_WGAMES + $NUM_BGAMES) ;
}
#=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=#
#=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=#
## Initialisation of variables and environment
sub showGPL {
## ################################################################# ##
## Show copyright notice
## ################################################################# ##
while (<DATA>) {
last if (/^{END OF GPL COPYRIGHT}$/) ;
s/\$Revision[:] (.*) \$/$1/ ;
print ;
}
## ################################################################# ##
## Show conditions if requested
## ################################################################# ##
while (<DATA>) {
last if (/^{END OF GPL CONDITIONS}$/) ;
print if ($SHOWW) ;
}
## ################################################################# ##
## Show warranty if requested
## ################################################################# ##
if ($SHOWC) {
print "\n" if ($SHOWW) ;
print while (<DATA>) ;
}
exit 0 if ($SHOWC || $SHOWW) ; ## Abort if showed conditions or warranty
}
#=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=#
#=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=#
## Initialisation of variables and environment
sub initialise {
local ($p) = "[.PRNBQKprnbqk]" ;
local ($l) = "$p $p $p $p $p $p $p $p\n" ;
local ($board) = "$l$l$l$l$l$l$l$l" ;
local ($tp) = ".* to play\n" ;
$posdiag = "\{--------------\n$board$tp--------------\}\n+" ;
&parse_flags (@ARGV) ; ## Parse command-line arguments
&showGPL unless $QUIET ;
open (tty, "< /dev/tty") ; ## Open tty for reading
&need_chess_dir () ; ## Check for the existence of CMAILDIR
open (logfile, ">$LOGFILE") if ($DEBUG) ; ## Default is STDERR
&debug ("Called <initialise>\n") ;
}
#=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=#
#=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=#
## Prompt for a game name, if <cr> use a default
sub prompt_for_game_name {
&debug ("Called <prompt_for_game_name>\n") ;
local ($old) = select ; ## Remember the selected output
select (stdout); ## Prompt goes to stdout
$| = 1 ; ## Keep it flushed
print "Game name [<cr> to use default]: " ;
die "cmail: tty not open\n" unless (-t) ;
<tty> =~ /(.*)/ ; ## Read line from tty
$PGN_GAME = "$1" ; ## Assign to game name
select ($old) ; ## Re-select the old output
}
#=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=#
#=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=#
## Prompt for opponent's address
sub prompt_for_opp_address {
&debug ("Called <prompt_for_opp_address>\n") ;
local ($old) = select ; ## Remember the selected output
select (stdout); ## Prompt goes to stdout
$| = 1 ; ## Keep it flushed
## ################################################################# ##
## Prompt for opponent's email address
## ################################################################# ##
print "Opponent's email address: " ;
die "cmail: tty not open\n" unless (-t) ;
<tty> =~ /(.*)/ ;
$OPP_ADDRESS = $1 ;
## ################################################################# ##
## Use name as default if still blank
## ################################################################# ##
$OPP_ADDRESS = $OPP_NNAME if ("" eq $OPP_ADDRESS) ;
select ($old) ; ## Re-select the old output
}
#=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=#
#=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=#
## Prompt for opponent's name
sub prompt_for_opp_name {
&debug ("Called <prompt_for_opp_name>\n") ;
local ($old) = select ; ## Remember the selected output
select (stdout) ; ## Prompt goes to stdout
$| = 1 ; ## Keep it flushed
print "Opponent's name: " ;
die "cmail: tty not open\n" unless (-t) ; ## Check tty is open
<tty> =~ /(.*)/ ; ## Read line from tty
$OPP_NNAME = $1 ; ## Match!
die "cmail: Can't proceed without the opponent's name.\n"
unless ($OPP_NNAME) ;
select ($old) ; ## Re-select the old output
}
#=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=#
#=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=#
## Prompt for move
sub prompt_for_move {
local ($prompt) = shift ;
local ($pattern) = shift ;
&debug ("Called <prompt_for_move>\n") ;
local ($move) = "" ;
local ($old) = select ; ## Remember the selected output
select (stdout) ; ## Write to stdout
$| = 1 ; ## Keep it flushed
die "cmail: tty not open\n" unless (-t) ; ## Check tty is open
do {
print $prompt ;
<STDIN> =~ /(.*)/ ; ## Read line from tty
$move = $1 ; ## Match!
} until ($move =~ /^$pattern$/) ;
select ($old) ; ## Re-select the old output
return ($move) ;
}
#=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=#
#=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=#
## Load the game
sub play_game {
&debug ("Called <play_game>\n") ;
$| = 1 ; ## Start flushing output buffer
## ################################################################# ##
## Load xboard unless inhibited by command-line arguments
## ################################################################# ##
if (($STARTING_NEW_GAME) && ($NUM_WGAMES == 0)) {
print ( "Bypassing xboard and mailing $NUM_BGAMES empty"
. " black games.\n") ;
} elsif ($LOAD_XBOARD) {
## ############################################################# ##
## Remove output file from previous run, but preserve
## $PGN_GAME.game.out.* because they will be empty black games
## ############################################################# ##
unlink "$PGN_GAME.out" ;
## ############################################################# ##
## Invoke xboard with loads of flags
## ############################################################# ##
if ($PGN_GAME) {
if (@ARCHIVE) {
local ($date) = &get_date_from_games (@ARCHIVE) ;
$XBOARD_ARGS = join (' ', (("-lgf",
"'$ARCDIR/$PGN_GAME.$date.archive'"),
@NCP_FLAGS,
"-xics",
@TD_FLAGS,
@DEBUG_FLAGS,
@UNREC_ARGS)) ;
} else {
$XBOARD_ARGS = join (' ', (("-cmail", "'$PGN_GAME'"),
@TD_FLAGS,
@NCP_FLAGS,
"-xics",
@DEBUG_FLAGS,
@UNREC_ARGS)) ;
}
} else {
$PGN_GAME = "unknown.cmail" ;
$XBOARD_ARGS = join (' ', (("-lgf", "'$PGN_GAME'"),
@NCP_FLAGS,
"-xics",
@TD_FLAGS,
@DEBUG_FLAGS,
@UNREC_ARGS)) ;
$REUSE = 0 ;
}
$LOG_FILE = "$PGN_GAME.log" ;
&debug ("Invoking xboard with args: $XBOARD_ARGS\n") ;
$PID_FILE = "$PGN_GAME.pid" ;
if ( (! $REUSE)
|| (! ( (-f $PID_FILE)
&& ($XBOARD_PID = `cat '$PID_FILE'`)
&& ("$XBOARD_PID" =~ /^\d+$/)
&& (kill "SIGUSR1", $XBOARD_PID)))) {
print "Loading xboard for game \"$PGN_GAME\"..." ;
# system ("gdb xboard") ;
system ( "{ ({ xboard $XBOARD_ARGS & } ;"
. " echo \$! > '$PID_FILE' ;"
. " wait ;"
. " rm '$PID_FILE') & } >'$LOG_FILE' 2>&1") ;
print ( "done.\n"
. "If nothing happens look for an error message in\n"
. "$CMAILDIR/$LOG_FILE\n") ;
} else {
print ("Revived existing xboard for game \"$PGN_GAME\".\n"
. "If nothing happens"
. " remove $CMAILDIR/$PID_FILE and try again.\n") ;
}
return 1 ;
}
return 0 ;
}
#=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=#
#=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=#
## Enter moves on tty instead of xboard
sub play_on_tty {
&debug ("Called <play_on_tty>\n") ;
local (@results) = @_ ;
local (@games, $game, $to_play) ;
## ################################################################# ##
## Check we have access to tty
## ################################################################# ##
if (open(STDIN, '/dev/tty')) {
## ############################################################# ##
## Read in games
## ############################################################# ##
local ($infile) = "$PGN_GAME.game.in" ;
if (-f $infile) {
@games = &get_games_from_file($infile) ;
&debug ("Read in games from \"$infile\"\n") ;
if (@results) {
foreach $game (@games) {
$result = shift (@results) ;
if ($result && ($game =~ /\[Result\s+"[^*]+"\]/)) {
$game = "" ;
}
}
}
## ################################################################# ##
## Accept move on tty for each game in turn
## ################################################################# ##
local ($comment_orig, $comment, $comment_line,
$pos, $move, $normal_move, $action, $result) ;
foreach $game (@games) {
next unless $game ;
$game =~ s/[\s\n]*[*]?[\s\n]*$// ;
$pos = "" ;
$pos = $1 if ($game =~ s/($posdiag)//) ;
print $game, "\n\n", $pos ;
($number, $to_play) = &get_to_play ($game) ;
$comment_orig = "" ;
$game_nocomment = $game ;
if ($game_nocomment =~ s/\n?{\n?([^{]*)}$//) {
$comment_orig = $1 ;
$comment_orig =~ s/([^\n])$/$1\n/ ;
# &debug ("Comment is:\n{\n$comment_orig}\n") ;
}
if ($game =~ /\[Result\s+"[^*]+"\]/) {
&prompt_for_move ("Game finished, press \"Return\" to continue: ", "") ;
next ;
}
$tmpgame = $game_nocomment ;
$comment = $comment_orig ;
outer:
while (1) {
if ($game =~ /{\n?.* offers a draw\n?}$/) {
$move = &prompt_for_move ("Enter move [MOVE/(r)esign/(a)ccept/(c)omment/re(t)ry]: ",
"([-a-h0-9PRNBQK][-a-h0-9PRNBQK]+|[ract])") ;
} else {
$move = &prompt_for_move ("Enter move [MOVE/(r)esign/(c)omment/re(t)ry]: ",
"([-a-h0-9PRNBQK][-a-h0-9PRNBQK]+|[rct])") ;
}
$normal_move = 0 ;
$result = "" ;
if ($move =~ /^\s*r\s*$/i) {
if ($to_play eq "White") {
$result = "0-1" ;
} else {
$result = "1-0" ;
}
$move = "\n{$to_play resigns} $result" ;
} elsif ($move =~ /^\s*a\s*$/i) {
$move = "\n{Draw agreed} $result" ;
} elsif ($move =~ /^\s*c\s*$/i) {
while ($comment_line = &prompt_for_move ("Enter comment: ", ".*")) {
$comment .= $comment_line . "\n" ;
}
next ;
} elsif ($move =~ /^\s*t\s*$/i) {
print $game, "\n\n", $pos ;
$tmpgame = $game_nocomment ;
$comment = $comment_orig ;
print "Try again.\n" ;
next ;
} else {
$normal_move = 1 ;
}
$tmpgame .= "\n{\n" . $comment . "}" if ($comment) ;
if (! $normal_move) {
$tmpgame .= "$move" ;
} elsif ($to_play eq "White") {
$tmpgame .= "\n$number. $move" ;
} elsif ($tmpgame =~ /}$/) {
$tmpgame .= "\n$number. ... $move" ;
} else {
$tmpgame .= " $move" ;
}
$tmpgame =~ s/\[Result\s+"(.*)"\]/[Result "$result"]/ if ($result) ;
$comment = "" ;
middle:
while (1) {
if ($normal_move) {
$action = &prompt_for_move ("Enter action [(d)raw/(c)omment/(s)end/re(t)ry]: ",
"[dcst]") ;
} elsif ($result) {
$action = &prompt_for_move ("Enter action [(s)end/re(t)ry]: ",
"[st]") ;
} else {
$action = &prompt_for_move ("Enter action [(c)omment/(s)end/re(t)ry]: ",
"[cst]") ;
}
if ($action =~ /^\s*d\s*$/i) {
if ($normal_move) {
$comment .= "$to_play offers a draw\n" ;
while (1) {
$action = &prompt_for_move ("Enter action [(c)omment/(s)end/re(t)ry]: ",
"[cst]") ;
if ($action =~ /^\s*c\s*$/i) {
while ($comment_line = &prompt_for_move ("Enter comment: ", ".*")) {
$comment .= $comment_line . "\n" ;
}
next ;
} elsif ($action =~ /^\s*t\s*$/i) {
print $game, "\n\n", $pos ;
$tmpgame = $game_nocomment ;
$comment = $comment_orig ;
print "Try again.\n" ;
next outer;
} elsif ($action =~ /^\s*s\s*$/i) {
$tmpgame .= "\n{\n" . $comment . "}" ;
last middle ;
}
}
} else {
print "You can't offer a draw at this point.\n" ;
next ;
}
} elsif ($action =~ /^\s*c\s*$/i) {
if ($result) {
print "You can't enter a comment after the game is finished.\n" ;
} else {
while ($comment_line = &prompt_for_move ("Enter comment: ", ".*")) {
$comment .= $comment_line . "\n" ;
}
}
next ;
} elsif ($action =~ /^\s*t\s*$/i) {
print $game, $pos ;
$tmpgame = $game_nocomment ;
$comment = $comment_orig ;
print "Try again.\n" ;
next outer;
} elsif ($action =~ /^\s*s\s*$/i) {
$tmpgame .= "\n{\n" . $comment . "}\n" if ($comment) ;
last ;
}
}
last ;
}
$tmpgame .= "\n*" if ($normal_move) ;
$tmpgame .= "\n\n" ;
$game = $tmpgame ;
}
} else {
die "cmail: No games to be read\n" ;
}
} else {
die "cmail: Can't open tty" ;
}
return (@games) ;
}
#=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=#
#=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=#
## Find the game the user wants by any means possible
sub find_game {
&debug ("Called <find_game>\n") ;
## ################################################################# ##
## Ask user for a game name if not already known
## ################################################################# ##
&prompt_for_game_name () if ("" eq "$PGN_GAME") ;
## ################################################################# ##
## Find out opponent's details
## ################################################################# ##
if ("" eq "$PGN_GAME") {
## ############################################################# ##
## Failed to find the game name so construct a default from players
## ############################################################# ##
&prompt_for_opp_name () if ("" eq "$OPP_NNAME") ; ## Ask user
die "cmail: Can't proceed without your opponent's short name (-opp)\n"
if ("" eq "$OPP_NNAME") ;
die "cmail: Can't proceed without your own short name (-me)\n"
if ("" eq "$MY_NNAME") ;
if ($NUM_WGAMES > 0) {
$PGN_GAME = "$MY_NNAME-vs-$OPP_NNAME" ; ## Construct default
} else {
$PGN_GAME = "$OPP_NNAME-vs-$MY_NNAME" ; ## Construct default
}
} elsif (("" eq "$OPP_ADDRESS") && ("" ne "$RETURN_ADDRESS")) {
$OPP_ADDRESS = $RETURN_ADDRESS ; ## Use return address instead
&debug ( "Using return address \"$OPP_ADDRESS\""
. " for opponent address\n") ;
}
## ################################################################# ##
## If no $PGN_GAME.game.in file, assume we're starting a new game
## ################################################################# ##
&start_new_game () unless (-f "$PGN_GAME.game.in") ;
}
#=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=#
#=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=#
## Get the date
sub get_date {
local ($the_time) = time ;
local ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday, $isdst) =
localtime ($the_time) ;
$mon ++ ;
$year += 1900 ;
if ($mon < 10) {
$mon = "0$mon" ;
}
if ($mday < 10) {
$mday = "0$mday" ;
}
"$year.$mon.$mday" ;
}
#=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=#
#=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=#
## Start a new game
sub start_new_game {
print ( "Starting new game"
. " -- $NUM_WGAMES as white, $NUM_BGAMES as black.\n") ;
local ($to_play) = "white" ;
$move_num = 0 ;
$STARTING_NEW_GAME = 1 ;
local (@game) ;
## ################################################################# ##
## Ask user for opponent's email address if unknown
## ################################################################# ##
&prompt_for_opp_address () if ("" eq "$OPP_ADDRESS") ;
## ################################################################# ##
## Give up if we haven't got anywhere to send a move to
## ################################################################# ##
die "cmail: Can't proceed without your opponent's email address.\n"
if ("" eq "$OPP_ADDRESS") ;
## ################################################################# ##
## Create an empty game file
## ################################################################# ##
open (GAMEFILE, "> $PGN_GAME.game.in") ;
for ($j = 1; $j <= $NUM_GAMES; $j ++) {
$PW_GCOS = &get_pw_gcos () ;
$PGN_MYCOL = $MY_FNAME ;
$PGN_MYCOL = $PW_GCOS unless $PGN_MYCOL ;
$PGN_MYCOL = $MY_NNAME unless $PGN_MYCOL ;
$PGN_MYCOLNA = $MY_ADDRESS ;
$PGN_MYCOLNA = "?" unless ($PGN_MYCOLNA) ;
$PGN_OPPCOL = $OPP_FNAME ;
$PGN_OPPCOL = "?" unless ($PGN_OPPCOL) ;
$PGN_OPPCOLNA = $OPP_ADDRESS ;
$PGN_OPPCOLNA = "?" unless ($PGN_OPPCOLNA) ;
if ($j > $NUM_WGAMES) {
$PGN_WHITE = $PGN_OPPCOL ;
$PGN_BLACK = $PGN_MYCOL ;
$PGN_WHITENA = $PGN_OPPCOLNA ;
$PGN_BLACKNA = $PGN_MYCOLNA ;
} else {
$PGN_WHITE = $PGN_MYCOL ;
$PGN_BLACK = $PGN_OPPCOL ;
$PGN_WHITENA = $PGN_MYCOLNA ;
$PGN_BLACKNA = $PGN_OPPCOLNA ;
}
## ######################################################### ##
## If we only have one colour of game then allow command-line
## colour specs to override
## ######################################################### ##
if (! ($NUM_WGAMES && $NUM_BGAMES)) {
$PGN_WHITE = $WHITE_FNAME if ($WHITE_FNAME) ;
$PGN_BLACK = $BLACK_FNAME if ($BLACK_FNAME) ;
$PGN_WHITENA = $WHITENA if ($WHITENA) ;
$PGN_BLACKNA = $BLACKNA if ($BLACKNA) ;
}
$PGN_DATE = &get_date () ;
$PGN_DATE = "?" unless ($PGN_DATE) ;
if ($NUM_GAMES > 1) {
$SUFFIX = ".$j" ;
} else {
$SUFFIX = "" ;
}
@game = ("[Event \"$PGN_EVENT\"]\n",
"[Site \"$PGN_SITE\"]\n",
"[Date \"$PGN_DATE\"]\n",
"[Round \"$PGN_ROUND\"]\n",
"[White \"$PGN_WHITE\"]\n",
"[Black \"$PGN_BLACK\"]\n",
"[Result \"*\"]\n",
"[WhiteNA \"$PGN_WHITENA\"]\n",
"[BlackNA \"$PGN_BLACKNA\"]\n",
"[Mode \"$PGN_MODE\"]\n",
"[CmailGameName \"$PGN_GAME$SUFFIX\"]\n\n*\n") ;
if ($j > $NUM_WGAMES) {
open (GAMEOUTFILE, "> $PGN_GAME.game.out.$j") ;
print GAMEOUTFILE @game ;
close (GAMEOUTFILE) ;
} else {
print GAMEFILE @game ;
}
}
close (GAMEFILE) ;
}
#=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=#
#=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=#
## Get the password file gcos (full name) entry
sub get_pw_entry {
local ($name, $passwd, $uid, $gid, $quota, $comment, $gcos, $dir, $shell) =
getpwuid ($<);
($name, $gcos) ;
}
#=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=#
#=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=#
## Get password file gcos (full name) entry
sub get_pw_gcos {
local ($PW_GCOS) ;
if (! $PW_GCOS) {
($dummy, $PW_GCOS) = &get_pw_entry () ;
$PW_GCOS =~ s/^\s*([^,()]+[^ ,()])[ ]*[,()].*$/$1/;
if ($PW_GCOS =~ /^([^,()]+)\s+([^\s,()]+)$/) { ## Multi-word name
$PW_GCOS = $2 . ", " . $1 ;
} elsif ($PW_GCOS !~ /^([^\s,()]+)/) { ## No sensible gcos entry
$PW_GCOS = "" ;
} ## Else leave it as one word
&debug ("PW full name is \"$PW_GCOS\"\n");
}
return $PW_GCOS ;
}
#=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=#
#=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=#
## Get password file user name entry
sub get_pw_name {
local ($PW_NAME) ;
($PW_NAME, $dummy) = &get_pw_entry () ;
&debug ("PW name is $PW_NAME\n");
return $PW_NAME ;
}
#=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=#
#=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=#
## Analyse the email message
sub analyse_email_message {
local ($new_result, $delete_result, $unfinished, $finished)
= (0, 0, 0, 0) ;
local ($gamefile, @games) ;
## ################################################################# ##
## Slurp the mail message
## ################################################################# ##
die "cmail: No games on standard input"
unless (@games = &get_games_from_file ("STDIN")) ;
## ################################################################# ##
## Is the message a real cmail message or just a chess game? $PGN_GAME
## will have been set by calling get_games_from_file if it's real
## ################################################################# ##
print "Processing game message..." ;
if ($PGN_GAME) {
## ############################################################# ##
## Restore the results file from the archive if
## necessary. This is helpful if the user pipes in an old
## message for take-back purposes or whatever.
## ############################################################# ##
if (! -f "$PGN_GAME.res") {
## Find what date would have been used to create the archive
foreach (@games) {
if (/\[Date\s"(.*)"\]/) {
$date = $1 ;
last ; ## Assume all dates are the same
}
}
## Restore results file from archive directory if it exists
if ($date && (-f "$ARCDIR/$PGN_GAME.$date.archive")) {
if (system ("cp",
"$ARCDIR/$PGN_GAME.$date.archive",
"$PGN_GAME.res")) {
print stderr ( "\nWarning: couldn't restore results file"
. " from archive\n") ;
} else {
print "restored results file from archive..." ;
}
}
}
## ############################################################# ##
## Find existing results, if any.
## ############################################################# ##
local (@results) = &get_games_from_file ("$PGN_GAME.res") ;