version 1.2, 2006/03/15 20:44:54
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version 1.12, 2006/12/19 17:44:16
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Line 31 package Apache::lonmaxima;
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Line 31 package Apache::lonmaxima;
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use strict; |
use strict; |
use IO::Socket; |
use IO::Socket; |
use Apache::lonnet; |
use Apache::lonnet; |
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use Apache::response(); |
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use LONCAPA; |
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sub connect { |
sub connect { |
return IO::Socket::UNIX->new(Peer => $Apache::lonnet::perlvar{'lonSockDir'}.'/maximasock', |
return IO::Socket::UNIX->new(Peer => $Apache::lonnet::perlvar{'lonSockDir'}.'/maximasock', |
Line 46 sub disconnect {
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Line 48 sub disconnect {
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sub maximareply { |
sub maximareply { |
my ($socket,$cmd)=@_; |
my ($socket,$cmd)=@_; |
if ($socket) { |
if ($socket) { |
print $socket &Apache::lonnet::escape($cmd)."\n"; |
print $socket &escape($cmd)."\n"; |
my $reply=<$socket>; |
my $reply=<$socket>; |
chomp($reply); |
chomp($reply); |
if ($reply=~/^Incorrect/) { $reply='Error: '.$reply; } |
if ($reply=~/^Incorrect/) { $reply='Error: '.$reply; } |
return &Apache::lonnet::unescape($reply); |
return &unescape($reply); |
} else { |
} else { |
return 'Error: no connection.'; |
return 'Error: no connection.'; |
} |
} |
Line 64 sub blacklisted {
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Line 66 sub blacklisted {
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return 0; |
return 0; |
} |
} |
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sub runscript { |
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my ($socket,$fullscript)=@_; |
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if (&blacklisted($fullscript)) { return 'Error: blacklisted'; } |
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my $reply; |
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$fullscript=~s/[\n\r\l]//gs; |
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foreach my $line (split(/\;/s,$fullscript)) { |
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if ($line=~/\w/) { $reply=&maximareply($socket,$line.";\n"); } |
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if ($reply=~/^Error\:/) { return $reply; } |
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} |
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$reply=~s/\W//gs; |
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return $reply; |
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} |
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sub maxima_cas_formula_fix { |
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my ($expression)=@_; |
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return &Apache::response::implicit_multiplication($expression); |
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} |
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sub maxima_run { |
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my ($script,$submission,$argument) = @_; |
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my $socket=&connect(); |
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my @submissionarray=split(/\s*\,\s*/,$submission); |
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for (my $i=0;$i<=$#submissionarray;$i++) { |
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my $n=$i+1; |
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my $fixedsubmission=&maxima_cas_formula_fix($submissionarray[$i]); |
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$script=~s/RESPONSE\[$n\]/$fixedsubmission/gs; |
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} |
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my @argumentarray=@{$argument}; |
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for (my $i=0;$i<=$#argumentarray;$i++) { |
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my $n=$i+1; |
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my $fixedargument=&maxima_cas_formula_fix($argumentarray[$i]); |
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$script=~s/LONCAPALIST\[$n\]/$fixedargument/gs; |
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} |
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my $reply=&runscript($socket,$script); |
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&disconnect($socket); |
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if ($reply=~/^\s*true\s*$/) { return 'EXACT_ANS'; } |
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if ($reply=~/^\s*false\s*/) { return 'INCORRECT'; } |
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return 'BAD_FORMULA'; |
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} |
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sub maxima_eval { |
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my ($script) = @_; |
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my $socket=&connect(); |
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my $reply=&runscript($socket,$script); |
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&disconnect($socket); |
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return $reply; |
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} |
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sub compareterms { |
sub compareterms { |
my ($socket,$terma,$termb)=@_; |
my ($socket,$terma,$termb)=@_; |
my $difference=$terma.'-'.$termb; |
my $difference=$terma.'-'.$termb; |
Line 73 sub compareterms {
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Line 124 sub compareterms {
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if ($reply=~/^Error\:/) { return $reply; } |
if ($reply=~/^Error\:/) { return $reply; } |
return 'false'; |
return 'false'; |
} |
} |
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sub maxima_check { |
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my ($response,$answer,$reterror) = @_; |
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my $socket=&connect(); |
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my $reply=&compareterms($socket,$response,$answer); |
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&disconnect($socket); |
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if ($reply eq 'true') { return 1; } |
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return 7; |
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} |
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1; |
1; |
__END__; |
__END__; |