Return to default_homework.lcpm CVS log

Up to [LON-CAPA] / loncom / homework

- changed order of resource.type.ids.ids to resource.ids.ids.type
- added detection of return code ERROR

    1: # file name (temp): default_homework 
    2: # used by lonxml::xmlparse() as input variable $safeinit to Apache::run::run()
    3: # 
    4: #
    5: $RANDOMINIT=0;
    6: 
    7: sub caparesponse_check {
    8:   my $answer='';  #done
    9:   my $type='';    #done
   10:   my $tol_type=''; # gets it's value from whether tol has a % or not done
   11:   my $tol='';     #done
   12:   my $sig='';
   13:   my $sig_lbound='';
   14:   my $sig_ubound='';
   15:   my $ans_fmt='';
   16:   my $units='';
   17:   my $calc='';
   18:   my ($response,$expr)=@_;
   19:   
   20:   ($answer,$type,$tol,$sig,$ans_fmt,
   21:    $units,$calc) = eval $expr.';return $answer,$type,$tol,$sig,$ans_fmt,$units,$calc';
   22:   #type's definitons come from capaParser.h
   23:   if ($type eq '' ) {
   24:     if ( $answer eq ($answer *1.0)) { $type = 2;
   25:     } else { $type = 3; }
   26:   } else {
   27:          if ($type eq 'cs')    { $type = 4;
   28:     } elsif ($type eq 'ci')    { $type = 3;
   29:     } elsif ($type eq 'mc')    { $type = 5;
   30:     } elsif ($type eq 'fml')   { $type = 8;
   31:     } elsif ($type eq 'subj')  { $type = 7;
   32:     } else { return "ERROR: Unknown type of answer: $type" }
   33:   }
   34: 
   35:   if ($tol eq '') {
   36:     $tol=0.0;
   37:     $tol_type=1; #TOL_ABSOLUTE
   38:   } else {
   39:     if ($tol =~ /%$/) {
   40:       chop $tol;
   41:       $tol_type=2; #TOL_PERCENTAGE
   42:     } else {
   43:       $tol_type=1; #TOL_ABSOLUTE
   44:     }
   45:   }
   46: 
   47:   if ($sig eq '') {
   48:     $sig_lbound = 0; #SIG_LB_DEFAULT
   49:     $sig_ubound =15; #SIG_UB_DEFAULT
   50:   } else {
   51:     ($sig_lbound,$sig_ubound) = split /,/,$sig;
   52:   }
   53:   my $result = &caparesponse_capa_check_answer($response,$answer,$type,
   54: 					       $tol_type,$tol,
   55: 					       $sig_lbound,$sig_ubound,
   56: 					       $ans_fmt,$units,$calc);
   57: 
   58:   if    ($result == '1') { $result='EXACT_ANS'; } 
   59:   elsif ($result == '2') { $result='APPROX_ANS'; }
   60:   elsif ($result == '3') { $result='SIG_FAIL'; }
   61:   elsif ($result == '4') { $result='UNIT_FAIL'; }
   62:   elsif ($result == '5') { $result='NO_UNIT'; }
   63:   elsif ($result == '6') { $result='UNIT_OK'; }
   64:   elsif ($result == '7') { $result='INCORRECT'; }
   65:   elsif ($result == '8') { $result='UNIT_NOTNEEDED'; }
   66:   elsif ($result == '9') { $result='ANS_CNT_NOT_MATCH'; }
   67:   elsif ($result =='10') { $result='SUB_RECORDED'; }
   68:   elsif ($result =='11') { $result='BAD_FORMULA'; }
   69:   elsif ($result =='12') { $result='WANTED_NUMERIC'; }
   70:   else  {$result = "ERROR: Unknown Result:$result:$@:";}
   71: 
   72:   return "$result:$error:$answer:$type|$tol|$tol_type|$sig:$sig_lbound:$sig_ubound|$units";
   73: }
   74: 
   75: sub tex {
   76:   if ( $external::target eq "tex" ) {
   77:     return @_[0];
   78:   } else {
   79:     return @_[1];
   80:   }
   81: }
   82: 
   83: sub web {
   84:   if ( $external::target eq "tex" ) {
   85:     return @_[1];
   86:   } else {
   87:     if ( $external::target eq "web") {
   88:       return @_[0];
   89:     } else {
   90:       return @_[2];
   91:     }
   92:   }
   93: }
   94: 
   95: sub problem {
   96:   return '1';
   97: }
   98: 
   99: sub hinton {
  100:   return 0;
  101: }
  102: 
  103: sub random {
  104:   my ($start,$end,$step)=@_;
  105:   if ( ! $RANDOMINIT ) { srand($external::randomseed); $RANDOMINIT=1; }
  106:   my $num=1+int(($end-$start)/$step);
  107:   my $result=$start + int(rand() * $num)*$step;
  108:   return $result;
  109: }
  110: 
  111: sub tan  { sin($_[0]) / cos($_[0]) }
  112: sub acos { atan2(sqrt(1 - $_[0] * $_[0]), $_[0] ); }
  113: sub asin { atan2($_[0], sqrt(1- $_[0] * $_[0]) );  }
  114: 
  115: sub html {
  116:   if ( $external::target eq "web" ) {
  117:     return @_[0];
  118:   }
  119: }
  120: 
  121: 
  122: sub pow   {return $_[0] ** $_[1]; }
  123: sub ceil  {return (($_[0]-int($_[0]))== 0.0) ? $_[0] : (int($_[0])+ 1); }
  124: sub floor {return int($_[0]);  }
  125: 
  126: sub format {
  127:   my ($value,$fmt)=@_;
  128:   return sprintf('%.'.$fmt,$value);
  129: }
  130: 
  131: sub map {
  132:   my $num = $#_/2;
  133:   my $i;
  134:   my @used;
  135:   my @permutation;
  136:   for ($i=0; $i < $num;) {
  137:     $rand = &random(1,$num,1);
  138:     if ( $used[$rand] == '0' ) {
  139:       $i++;
  140:       $used[$rand]='1';
  141:       $permutation[$i]=$rand;
  142:     }
  143:   }
  144:   for ( $i=1 ; $i<$num+1 ; $i++ ) {
  145:     ${$_[$permutation[$i]]}=$_[$i+$num]
  146:   }
  147: }
  148: 
  149: sub choose {
  150:   my $num = $_[0];
  151:   return $_[$num];
  152: }
  153: #$external::randomseed=time;
  154: #$a=2;
  155: #$b=2;
  156: #$c=2;
  157: #&map(1,\$a,\$b,\$c,3,4,5);
  158: #print $a."\n".$b."\n";