/usr/share/deal/lib/handProc.tcl is in deal 3.1.9-8.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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# Copyright (C) 1996-2001, Thomas Andrews
#
# $Id: handProc.tcl 255 2008-09-15 12:43:02Z thomasoa $
#
# This program 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 2 of the License, or
# (at your option) any later version.
#
# This program 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, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#
proc handProc {name body} {
set part(1) $body
set part(2) $body
set triples {
%h $hand {hand $hand}
%S {$hand spades} {hand $hand spades]}
%H {$hand hearts} {hand $hand hearts]}
%D {$hand diamonds} {hand $hand diamonds]}
%C {$hand clubs} {hand $hand clubs]}
%% % %
}
set procBody {
if {0==[string compare $hand hand]} {
set hand [lindex $args 0]
set args [lrange $args 1 end]
%2
} else {
%1
}
}
foreach var {1 2} {
foreach {code replace(1) replace(2)} $triples {
regsub -all $code $part($var) $replace($var) part($var)
}
regsub -all "%$var" $procBody $part($var) procBody
}
uplevel [list proc $name {hand args} $procBody]
}
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