--- loncom/homework/default_homework.lcpm 2001/06/13 20:00:07 1.27 +++ loncom/homework/default_homework.lcpm 2001/07/23 22:40:59 1.32 @@ -21,14 +21,25 @@ sub caparesponse_check { my $sig_lbound=''; #done my $sig_ubound=''; #done my $ans_fmt=''; - my $units=''; #done + my $unit=''; #done my $calc=''; my ($response,$expr)=@_; - + + ($answer,$type,$tol,$sig,$ans_fmt, - $units,$calc) = eval $expr.';return $answer,$type,$tol,$sig,$ans_fmt,$units,$calc'; + $unit,$calc) = eval $expr.';return ($answer,$type,$tol,$sig,$ans_fmt,$unit,$calc);'; #type's definitons come from capaParser.h + my $message=''; + #remove leading and trailing whitespace + if ($response=~ /^\s|\s$/) { + $response=~ s:^\s+|\s+$::g; + $message .="Removed ws now :$response:
"; + } else { + $message .="no ws in :$response:
"; + } + if ($type eq '' ) { + $message .= "Didn't find a type :$type:$expr: defaulting
"; if ( $answer eq ($answer *1.0)) { $type = 2; } else { $type = 3; } } else { @@ -61,7 +72,7 @@ sub caparesponse_check { my $result = &caparesponse_capa_check_answer($response,$answer,$type, $tol_type,$tol, $sig_lbound,$sig_ubound, - $ans_fmt,$units,$calc); + $ans_fmt,$unit,$calc); if ($result == '1') { $result='EXACT_ANS'; } elsif ($result == '2') { $result='APPROX_ANS'; } @@ -77,34 +88,54 @@ sub caparesponse_check { elsif ($result =='12') { $result='WANTED_NUMERIC'; } else {$result = "ERROR: Unknown Result:$result:$@:";} - return "$result:
Error $error:
Answer $answer:
Response $response:
$type|$tol|$tol_type|$sig:$sig_lbound:$sig_ubound|$units
"; + return "$result:
Error $error:
Answer $answer:
Response $response:
type-$type|$tol|$tol_type|$sig:$sig_lbound:$sig_ubound|$units
$message$expr"; } sub caparesponse_check_list { my ($response,$expr)=@_; + # do these first, because who knows what varname the instructor might have used + # but it probably isn't $CAPARESPONSE_CHECK_LIST_answer + my $CAPARESPONSE_CHECK_LIST_answer = eval $expr.';return $answer'; + my (@list) = eval $CAPARESPONSE_CHECK_LIST_answer; my $result=''; + $result.="error:$@:
"; + # if the eval fails just use what is in the answer exactly + if (!defined(@list) || !defined($list[0])) { + $result.="list zero is undefined
"; + $list[0]=$CAPARESPONSE_CHECK_LIST_answer; + } my $aresult=''; my $current_answer; - my $answer = eval $expr.';return $answer'; - my (@list) = eval $answer; - my (@responselist)=split /,/,$response; + $result.="Got response :$CAPARESPONSE_CHECK_LIST_answer:$list[0]:
"; + my @responselist; + my $type =eval $expr.';return $answer;'; + if ($type ne '' && $#list > 0) { + (@responselist)=split /,/,$response; + } else { + (@responselist)=($response); + } my $unit=''; - $result.="Final response :$responselist['-1']:
"; - if ( $responselist['-1']=~ /(.*[^\s])\s+([^\s]+)/ ) { - $responselist['-1']=$1; - $unit=$2; + $result.="Initial final response :$responselist['-1']:
"; + if ($type eq '') { + #for numerical problems split off the unit + if ( $responselist['-1']=~ /(.*[^\s])\s+([^\s]+)/ ) { + $responselist['-1']=$1; + $unit=$2; + } } - $result.="Final response :$responselist['-1']:
"; + $result.="Final final response :$responselist['-1']:
"; + $result.=":$#list: answers
"; $unit=~s/\s//; my $i=0; my $awards=''; for ($i=0; $i<@list;$i++) { + $result.="trying answer :$list[$i]:
"; if ($unit eq '') { $aresult=&caparesponse_check($responselist[$i], - $expr.';my $answer='.$list[$i].';'); + $expr.';my $answer=\''.$list[$i].'\';'); } else { $aresult=&caparesponse_check($responselist[$i]." $unit", - $expr.';my $answer='.$list[$i].';'); + $expr.';my $answer=\''.$list[$i].'\';'); } my ($temp)=split /:/, $aresult; $awards.="$temp,"; @@ -371,23 +402,33 @@ sub map { my ($phrase,$dest,$source)=@_; my @seed = &random_seed_from_phrase($phrase); &random_set_seed(@seed); - my $num = scalar(@$source); my $destct = scalar(@$dest); -# print "Warning - Number of source elements and destination elements does not match.\n" if $destct != $num; - my @idx = &math_random_permuted_index($num); - my $ctr = 0; - my $tot = $num; - $tot = $destct if $destct < $num; - if (ref($$dest[0])) { - while ($ctr < $tot) { - ${$$dest[$ctr]} = $$source[$idx[$ctr]]; + if (!$source) { + my @output; + my @idx = &math_random_permuted_index($destct); + my $ctr = 0; + while ($ctr < $destct) { + $output[$ctr] = $$dest[$idx[$ctr]]; $ctr++; - } + } + return @output; } else { - while ($ctr < $tot) { - $$dest[$ctr] = $$source[$idx[$ctr]]; - $ctr++; - } + my $num = scalar(@$source); + my @idx = &math_random_permuted_index($num); + my $ctr = 0; + my $tot = $num; + $tot = $destct if $destct < $num; + if (ref($$dest[0])) { + while ($ctr < $tot) { + ${$$dest[$ctr]} = $$source[$idx[$ctr]]; + $ctr++; + } + } else { + while ($ctr < $tot) { + $$dest[$ctr] = $$source[$idx[$ctr]]; + $ctr++; + } + } } } @@ -395,29 +436,45 @@ sub rmap { my ($phrase,$dest,$source)=@_; my @seed = &random_seed_from_phrase($phrase); &random_set_seed(@seed); - my $num = scalar(@$source); my $destct = scalar(@$dest); -# print "Warning - Number of source elements and destination elements does not match.\n" if $destct != $num; - my @idx = &math_random_permuted_index($num); - my $ctr = 0; - my $tot = $num; - $tot = $destct if $destct < $num; - my @r_idx; - while ($ctr < $tot) { - $r_idx[$idx[$ctr]] = $ctr; - $ctr++; - } - $ctr = 0; - if (ref($$dest[0])) { - while ($ctr < $tot) { - ${$$dest[$ctr]} = $$source[$r_idx[$ctr]]; + if (!$source) { + my @idx = &math_random_permuted_index($destct); + my $ctr = 0; + my @r_idx; + while ($ctr < $destct) { + $r_idx[$idx[$ctr]] = $ctr; + $ctr++; + } + my @output; + $ctr = 0; + while ($ctr < $destct) { + $output[$ctr] = $$dest[$r_idx[$ctr]]; $ctr++; - } + } + return @output; } else { + my $num = scalar(@$source); + my @idx = &math_random_permuted_index($num); + my $ctr = 0; + my $tot = $num; + $tot = $destct if $destct < $num; + my @r_idx; while ($ctr < $tot) { - $$dest[$ctr] = $$source[$r_idx[$ctr]]; + $r_idx[$idx[$ctr]] = $ctr; $ctr++; - } + } + $ctr = 0; + if (ref($$dest[0])) { + while ($ctr < $tot) { + ${$$dest[$ctr]} = $$source[$r_idx[$ctr]]; + $ctr++; + } + } else { + while ($ctr < $tot) { + $$dest[$ctr] = $$source[$r_idx[$ctr]]; + $ctr++; + } + } } } @@ -495,7 +552,7 @@ sub array_moments { $output[0]=$N; if ($N <= 1) { $output[1]=$input[0]; - $output[1] = "Input array not defined" if ($N == 0); + $output[1]="Input array not defined" if ($N == 0); $output[2]="variance undefined for N<=1"; $output[3]="skewness undefined for N<=1"; $output[4]="kurtosis undefined for N<=1";