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Diff for /loncom/homework/lonmaxima.pm between versions 1.4 and 1.15

version 1.4, 2006/06/12 14:22:01 version 1.15, 2007/05/29 20:56:39
Line 31  package Apache::lonmaxima; Line 31  package Apache::lonmaxima;
 use strict;  use strict;
 use IO::Socket;  use IO::Socket;
 use Apache::lonnet;  use Apache::lonnet;
   use Apache::response();
 use LONCAPA;  use LONCAPA;
   
 sub connect {  sub connect {
Line 59  sub maximareply { Line 60  sub maximareply {
   
 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 $forbidden ('save','load','plot','lisp','includ','compil',
      'file','batch','stringout','translat','stout',
      'stin','block','system','concat') {
  if ($cmd=~/$forbidden/s) { return 1; }   if ($cmd=~/$forbidden/s) { return 1; }
     }       } 
     return 0;      return 0;
 }  }
   
   sub runscript {
       my ($socket,$fullscript)=@_;
       if (&blacklisted($fullscript)) { return 'Error: blacklisted'; }
       my $reply;
       $fullscript=~s/[\n\r\l]//gs;
       foreach my $line (split(/\;/s,$fullscript)) {
    if ($line=~/\w/) { $reply=&maximareply($socket,$line.";\n"); }
    if ($reply=~/^Error\:/) { return $reply; }
       }
       $reply=~s/^\s*//gs;
       $reply=~s/\s*$//gs;
       &Apache::lonxml::debug("maxima $fullscript \n reply $reply");
       return $reply;
   }
   
   sub maxima_cas_formula_fix {
      my ($expression)=@_;
      return &Apache::response::implicit_multiplication($expression);
   }
   
   sub maxima_run {
       my ($script,$submission,$argument) = @_;
       my $socket=&connect();
       my @submissionarray=split(/\s*\,\s*/,$submission);
       for (my $i=0;$i<=$#submissionarray;$i++) {
           my $n=$i+1;
           my $fixedsubmission=&maxima_cas_formula_fix($submissionarray[$i]);
           $script=~s/RESPONSE\[$n\]/$fixedsubmission/gs;
       }
       my @argumentarray=@{$argument};
       for (my $i=0;$i<=$#argumentarray;$i++) {
           my $n=$i+1;
           my $fixedargument=&maxima_cas_formula_fix($argumentarray[$i]);
           $script=~s/LONCAPALIST\[$n\]/$fixedargument/gs;
       }
       my $reply=&runscript($socket,$script);
       &disconnect($socket);
       if ($reply=~/^\s*true\s*$/i) { return 'EXACT_ANS'; }
       if ($reply=~/^\s*false\s*$/i) { return 'INCORRECT'; } 
       return 'BAD_FORMULA';
   }
   
   sub maxima_eval {
       my ($script) = @_;
       my $socket=&connect();
       my $reply=&runscript($socket,$script);
       &disconnect($socket);
       return $reply;
   }
   
   
 sub compareterms {  sub compareterms {
     my ($socket,$terma,$termb)=@_;      my ($socket,$terma,$termb)=@_;
     my $difference=$terma.'-'.$termb;      my $difference=$terma.'-'.$termb;
Line 76  sub compareterms { Line 130  sub compareterms {
 }  }
   
 sub maxima_check {  sub maxima_check {
     my ($response,$answer,$type,      my ($response,$answer,$reterror) = @_;
         $tol_type,$tol,  
         $sig_lbound,$sig_ubound,  
         $ans_fmt,$unit,$calc,$id_list,  
         $points,  
         $randomseed,  
         $reterror) = @_;  
     my $socket=&connect();      my $socket=&connect();
     my $reply=&compareterms($socket,$response,$answer);      my $reply=&compareterms($socket,$response,$answer);
     &disconnect($socket);      &disconnect($socket);
Removed from v.1.4  
changed lines
  Added in v.1.15

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