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#!/usr/bin/env perl
# -*-Perl-*-
##
## \file evaluateMath.pl
## \brief Evaluates infix expressions
## \author TBI {xtof,raim}@tbi.univie.ac.at
##
##
## Copyright 2005 TBI
##
## This library is free software; you can redistribute it and/or modify it
## under the terms of the GNU Lesser General Public License as published
## by the Free Software Foundation; either version 2.1 of the License, or
## any later version.
##
## This library 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. The software and
## documentation provided hereunder is on an "as is" basis, and the
## California Institute of Technology and Japan Science and Technology
## Corporation have no obligations to provide maintenance, support,
## updates, enhancements or modifications. In no event shall the
## California Institute of Technology or the Japan Science and Technology
## Corporation be liable to any party for direct, indirect, special,
## incidental or consequential damages, including lost profits, arising
## out of the use of this software and its documentation, even if the
## California Institute of Technology and/or Japan Science and Technology
## Corporation have been advised of the possibility of such damage. See
## the GNU Lesser General Public License for more details.
##
## You should have received a copy of the GNU Lesser General Public License
## along with this library; if not, write to the Free Software Foundation,
## Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
##
## The original code contained here was initially developed by:
##
## Christoph Flamm and Rainer Machne
## Institut fuer Theoretische Chemie
## Universitaet Wien
## Waehringerstrasse 17/3/308
## A-1090 Wien, Austria
use Benchmark qw/:hireswallclock/;
use Math::Trig;
use POSIX;
use blib '../../src/bindings/perl';
use LibSBML;
use strict;
use vars qw/$ACTIONS $TU/;
# read action table from internal filehandle
$ACTIONS = {util_getTable()}; warn $@ if $@;
# main loop
for (;;) {
print "Enter infix formula (Empty line to quit):\n\n> ";
my $t0 = new Benchmark;
my $ast = LibSBML::parseFormula(util_trim($_=<>)) || last;
my $result = evalAST($ast);
my $t1 = new Benchmark;
(my $ellapsed = timestr(timediff($t1, $t0), 'nop')) =~ s/\A([\d\.]+)/$1/;
printf
"\n%s\n= %.10g\n\nevaluation time: %lu ms\n\n",
LibSBML::formulaToString($ast),
$result,
$ellapsed;
}
#---
sub evalAST {
my $astnode = shift
|| do {warn "empty AST node", return};
$ACTIONS->{$astnode->getType()}->($astnode);
}
#---
sub util_getTable {
local $/; undef $/; # enable slurp mode
eval <DATA>;
}
#---
sub util_getValue {
printf
"Please enter a nummeric value for the variable %s: ", $_[0]->getName();
return util_trim(local $_ = <>);
}
#---
sub util_trim {
local $_ = shift;
s/^\s+//; s/\s+$//; chomp();
return $_;
}
#---
BEGIN {
$main::TU = 'ms';
eval "use Time::HiRes";
warn "\nModule Time::HiRes not installed.\n"
. "Time granularity will be integer seconds not milliseconds!\n" if $@;
$main::TU = ' s' if $@;
}
__DATA__
# numeric values
$LibSBML::AST_INTEGER => sub { $_[0]->getInteger() },
$LibSBML::AST_REAL => sub { $_[0]->getReal() },
$LibSBML::AST_REAL_E => sub { $_[0]->getReal() },
$LibSBML::AST_NAME => sub { util_getValue($_[0]) },
$LibSBML::AST_FUNCTION_DELAY => sub { return evalAST($_[0]->getChild())
if $_[0]->getNumChildren() > 1;
return 0 },
$LibSBML::AST_NAME_TIME => sub { 0 },
# constants
$LibSBML::AST_CONSTANT_E => sub { exp(1) },
$LibSBML::AST_CONSTANT_FALSE => sub { 0 },
$LibSBML::AST_CONSTANT_PI => sub { pi() }, # 4 * atan2(1, 1)
$LibSBML::AST_CONSTANT_TRUE => sub { 1 },
# arithmetic operators
$LibSBML::AST_PLUS => sub { evalAST($_[0]->getChild(0))
+ evalAST($_[0]->getChild(1));
},
$LibSBML::AST_MINUS => sub { return -evalAST($_[0]->getChild(0))
if $_[0]->getNumChildren() == 1;
return evalAST($_[0]->getChild(0))
- evalAST($_[0]->getChild(1));
},
$LibSBML::AST_TIMES => sub { evalAST($_[0]->getChild(0))
* evalAST($_[0]->getChild(1));
},
$LibSBML::AST_DIVIDE => sub { evalAST($_[0]->getChild(0))
/ evalAST($_[0]->getChild(1));
},
$LibSBML::AST_LAMBDA => sub { 0 }, # not yet implemented
$LibSBML::AST_FUNCTION => sub { return evalAST($_[0]->getChild(0))
if $_[0]->getNumChildren()== 1;
return 0 },
# functions
$LibSBML::AST_FUNCTION_ABS => sub { abs(evalAST($_[0]->getChild(0))) },
$LibSBML::AST_FUNCTION_CEILING => sub { ceil(evalAST($_[0]->getChild(0))) },
$LibSBML::AST_FUNCTION_EXP => sub { exp(evalAST($_[0]->getChild(0))) },
$LibSBML::AST_FUNCTION_FACTORIAL => sub { my ($r, $i);
$r = 1;
$i = evalAST($_[0]->getChild(0));
$r *= $_ for 2..floor($i);
},
$LibSBML::AST_FUNCTION_LN => sub { log(evalAST($_[0]->getChild(0))) },
$LibSBML::AST_FUNCTION_LOG => sub { log(evalAST($_[0]->getChild(0)))
/ log(10);
},
$LibSBML::AST_FUNCTION_PIECEWISE => sub { 0 }, # not yet implemented
$LibSBML::AST_POWER => sub { evalAST($_[0]->getChild(0))
** evalAST($_[0]->getChild(1));
},
$LibSBML::AST_FUNCTION_ROOT => sub { evalAST($_[1]->getChild()) **
(1./evalAST($_[0]->getChild(0)));
},
# trigonometric functions
$LibSBML::AST_FUNCTION_ARCCOS => sub { acos(evalAST($_[0]->getChild(0)))},
$LibSBML::AST_FUNCTION_ARCCOSH => sub { acosh(evalAST($_[0]->getChild(0)))},
$LibSBML::AST_FUNCTION_ARCCOT => sub { acotan(evalAST($_[0]->getChild(0)))},
$LibSBML::AST_FUNCTION_ARCCOTH => sub {acotanh(evalAST($_[0]->getChild(0)))},
$LibSBML::AST_FUNCTION_ARCCSC => sub { acsc(evalAST($_[0]->getChild(0)))},
$LibSBML::AST_FUNCTION_ARCSEC => sub { asec(evalAST($_[0]->getChild(0)))},
$LibSBML::AST_FUNCTION_ARCSECH => sub { asech(evalAST($_[0]->getChild(0)))},
$LibSBML::AST_FUNCTION_ARCSIN => sub { asin(evalAST($_[0]->getChild(0)))},
$LibSBML::AST_FUNCTION_ARCSINH => sub { asinh(evalAST($_[0]->getChild(0)))},
$LibSBML::AST_FUNCTION_ARCTAN => sub { atan(evalAST($_[0]->getChild(0)))},
$LibSBML::AST_FUNCTION_ARCTANH => sub { atanh(evalAST($_[0]->getChild(0)))},
$LibSBML::AST_FUNCTION_COS => sub { cos(evalAST($_[0]->getChild(0)))},
$LibSBML::AST_FUNCTION_COSH => sub { cosh(evalAST($_[0]->getChild(0)))},
$LibSBML::AST_FUNCTION_COT => sub { cot(evalAST($_[0]->getChild(0)))},
$LibSBML::AST_FUNCTION_COTH => sub { cotanh(evalAST($_[0]->getChild(0)))},
$LibSBML::AST_FUNCTION_CSC => sub { csc(evalAST($_[0]->getChild(0)))},
$LibSBML::AST_FUNCTION_CSCH => sub { csch(evalAST($_[0]->getChild(0)))},
$LibSBML::AST_FUNCTION_SEC => sub { sec(evalAST($_[0]->getChild(0)))},
$LibSBML::AST_FUNCTION_SECH => sub { sech(evalAST($_[0]->getChild(0)))},
$LibSBML::AST_FUNCTION_SIN => sub { sin(evalAST($_[0]->getChild(0)))},
$LibSBML::AST_FUNCTION_SINH => sub { sinh(evalAST($_[0]->getChild(0)))},
$LibSBML::AST_FUNCTION_TAN => sub { tan(evalAST($_[0]->getChild(0)))},
$LibSBML::AST_FUNCTION_TANH => sub { tanh(evalAST($_[0]->getChild(0)))},
# logical operators
$LibSBML::AST_LOGICAL_AND => sub { evalAST($_[0]->getChild(0))
&& evalAST($_[0]->getChild(1));
},
$LibSBML::AST_LOGICAL_NOT => sub { !evalAST($_[0]->getChild(0)) },
$LibSBML::AST_LOGICAL_OR => sub { evalAST($_[0]->getChild(0))
|| evalAST($_[0]->getChild(1));
},
$LibSBML::AST_LOGICAL_XOR => sub { !(evalAST($_[0]->getChild(0)) &&
evalAST($_[0]->getChild(1))) ||
(evalAST($_[0]->getChild(0)) &&
!evalAST($_[0]->getChild(1)));
},
# relational operators
$LibSBML::AST_RELATIONAL_EQ => sub { evalAST($_[0]->getChild(0))
== evalAST($_[0]->getChild(1));
},
$LibSBML::AST_RELATIONAL_GEQ => sub { evalAST($_[0]->getChild(0))
>= evalAST($_[0]->getChild(1));
},
$LibSBML::AST_RELATIONAL_GT => sub { evalAST($_[0]->getChild(0))
> evalAST($_[0]->getChild(1));
},
$LibSBML::AST_RELATIONAL_LEQ => sub { evalAST($_[0]->getChild(0))
<= evalAST($_[0]->getChild(1));
},
$LibSBML::AST_RELATIONAL_LT => sub { evalAST($_[0]->getChild(0))
< evalAST($_[0]->getChild(1));
},
$LibSBML::AST_UNKNOWN => sub { 0 }, # default case
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