version 1.4, 2006/06/12 14:22:01
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version 1.20, 2007/08/13 10:21:46
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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(); |
use LONCAPA; |
use LONCAPA; |
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sub connect { |
sub connect { |
Line 59 sub maximareply {
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Line 60 sub maximareply {
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sub blacklisted { |
sub blacklisted { |
my ($cmd)=@_; |
my ($cmd)=@_; |
foreach my $forbidden ('save','load','plot','lisp','includ','compil','file','batch','stringout','translat','stout','stin','block','system') { |
foreach my $forbidden ('save','load','plot','lisp','includ','compil', |
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'file','batch','stringout','translat','stout', |
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'stin','block','system','concat','read','inchar', |
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'outchar','ttyoff','with_stdout','writefile') { |
if ($cmd=~/$forbidden/s) { return 1; } |
if ($cmd=~/$forbidden/s) { return 1; } |
} |
} |
return 0; |
return 0; |
} |
} |
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sub runscript { |
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my ($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/^\s*//gs; |
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$reply=~s/\s*$//gs; |
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&Apache::lonxml::debug("maxima $fullscript \n reply $reply"); |
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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 ($reply=~/^\s*true\s*$/i) { return 'EXACT_ANS'; } |
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if ($reply=~/^\s*false\s*$/i) { 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.'-('.$termb.')'; |
if (&blacklisted($difference)) { return 'Error: blacklisted'; } |
if (&blacklisted($difference)) { return 'Error: blacklisted'; } |
my $reply=&maximareply($socket,'trigsimp(trigreduce('.$difference.'));'); |
my $reply=&maximareply($socket,'trigsimp(trigreduce('.$difference.'));'); |
if ($reply=~/^\s*0\s*$/) { return 'true'; } |
if ($reply=~/^\s*0\s*$/) { return 'true'; } |
Line 76 sub compareterms {
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Line 131 sub compareterms {
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} |
} |
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sub maxima_check { |
sub maxima_check { |
my ($response,$answer,$type, |
my ($response,$answer,$reterror) = @_; |
$tol_type,$tol, |
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$sig_lbound,$sig_ubound, |
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$ans_fmt,$unit,$calc,$id_list, |
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$points, |
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$randomseed, |
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$reterror) = @_; |
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my $socket=&connect(); |
my $socket=&connect(); |
my $reply=&compareterms($socket,$response,$answer); |
my $reply=&compareterms($socket,$response,$answer); |
&disconnect($socket); |
&disconnect($socket); |
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# integer to string mappings come from capaParser.h |
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# 1 maps to 'EXACT_ANS' |
if ($reply eq 'true') { return 1; } |
if ($reply eq 'true') { return 1; } |
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# 7 maps to 'INCORRECT' |
return 7; |
return 7; |
} |
} |
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