--- loncom/homework/caparesponse/caparesponse.pm 2002/01/11 16:32:29 1.49 +++ loncom/homework/caparesponse/caparesponse.pm 2011/06/08 01:39:32 1.247 @@ -1,7 +1,7 @@ # The LearningOnline Network with CAPA # caparesponse definition # -# $Id: caparesponse.pm,v 1.49 2002/01/11 16:32:29 matthew Exp $ +# $Id: caparesponse.pm,v 1.247 2011/06/08 01:39:32 www Exp $ # # Copyright Michigan State University Board of Trustees # @@ -29,245 +29,1384 @@ package Apache::caparesponse; use strict; use capa; +use Safe::Hole; +use Apache::lonmaxima(); +use Apache::lonlocal; +use Apache::lonnet; +use Apache::lonmsg(); +use Apache::response(); +use Storable qw(dclone); -sub BEGIN { - &Apache::lonxml::register('Apache::caparesponse',('caparesponse','numericalresponse','stringresponse','formularesponse')); +BEGIN { + &Apache::lonxml::register('Apache::caparesponse',('numericalresponse','stringresponse','formularesponse')); } -sub start_caparesponse { - my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; - my $id = &Apache::response::start_response($parstack,$safeeval); - return ''; -} - -sub end_caparesponse { - my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; - my $result = ''; - if ( $target eq 'grade' ) { - if ( defined $ENV{'form.submitted'}) { - $safeeval->share_from('capa',['&caparesponse_capa_check_answer']); - my $response = $ENV{'form.HWVAL'.$Apache::inputtags::response['-1']}; - if ( $response =~ /[^\s]/) { - my $id = $Apache::inputtags::response['-1']; - my $previous= &Apache::response::check_for_previous($response,$id,$response); - if ( $previous ) { - $result = 'PREVIOUSLY_USED'; - } else { - $Apache::lonhomework::results{"resource.$Apache::inputtags::part.$id.submission"}=$response; - &Apache::lonxml::debug("submitted a $response
\n"); - &Apache::lonxml::debug($$parstack[$#$parstack] . "\n
"); - my $expression="&caparesponse_check('".$response."','". - $$parstack[$#$parstack]. - ';my $tol="'.$Apache::inputtags::params{'tol'}.'"'. - ';my $sig="'.$Apache::inputtags::params{'sig'}.'"'. - "');"; - $result = &Apache::run::run($expression,$safeeval); - my ($ad) = split /:/ , $result; - $Apache::lonhomework::results{"resource.$Apache::inputtags::part.$id.awarddetail"}=$ad; - &Apache::lonxml::debug("$expression"); - &Apache::lonxml::debug("\n
result:$result:$Apache::lonxml::curdepth
\n"); - } - } - } - } elsif ($target eq 'web') { - #$result .= "The correct answer is ".&Apache::run::run("{$$parstack['-1'];".'return $answer}',$safeeval)."\n"; - } - #Apache::lonxml::debug("\n
\nreal end caparesponse
\n"); - &Apache::response::end_response; - return ''; +my %answer; +my @answers; +sub get_answer { return %answer; }; +sub push_answer{ push(@answers,dclone(\%answer)); undef(%answer) } +sub pop_answer { %answer = %{pop(@answers)}; }; + +my $cur_name; +my $tag_internal_answer_name = 'INTERNAL'; + +sub start_answer { + my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; + my $result; + $cur_name = &Apache::lonxml::get_param('name',$parstack,$safeeval); + if ($cur_name =~ /^\s*$/) { $cur_name = $Apache::lonxml::curdepth; } + my $type = &Apache::lonxml::get_param('type',$parstack,$safeeval); + if (!defined($type) && $tagstack->[-2] eq 'answergroup') { + $type = &Apache::lonxml::get_param('type',$parstack,$safeeval,-2); + } + if (!defined($type)) { $type = 'ordered' }; + $answer{$cur_name}= { 'type' => $type, + 'answers' => [] }; + if ($target eq 'edit') { + $result.=&Apache::edit::tag_start($target,$token); + $result.=&Apache::edit::text_arg('Name:','name',$token); + $result.=&Apache::edit::select_arg('Type:','type', + [['ordered', 'Ordered' ], + ['unordered','Unordered'],], + $token); + $result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row(); + } elsif ($target eq 'modified') { + my $constructtag = &Apache::edit::get_new_args($token,$parstack, + $safeeval,'name', + 'type'); + if ($constructtag) { + $result = &Apache::edit::rebuild_tag($token); + $result.= &Apache::edit::handle_insert(); + } + } + return $result; +} + +sub end_answer { + my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; + my $result; + if ($target eq 'edit') { + $result .= &Apache::edit::tag_end(); + } + + undef($cur_name); + return $result; +} + +sub insert_answer { + return ' + + + '; +} + +sub start_answergroup { + my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; + my $result; + if ($target eq 'edit') { + $result.=&Apache::edit::tag_start($target,$token); + $result.=&Apache::edit::select_arg('Type:','type', + [['ordered', 'Ordered' ], + ['unordered','Unordered'],], + $token); + $result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row(); + } elsif ($target eq 'modified') { + my $constructtag = &Apache::edit::get_new_args($token,$parstack, + $safeeval,'name', + 'type'); + if ($constructtag) { + $result = &Apache::edit::rebuild_tag($token); + $result.= &Apache::edit::handle_insert(); + } + } + return $result; +} + +sub end_answergroup { + my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; + my $result; + if ($target eq 'web') { + if ( &Apache::response::show_answer() ) { + my $partid = $Apache::inputtags::part; + my $id = $Apache::inputtags::response[-1]; + &set_answertext($Apache::lonhomework::history{"resource.$partid.$id.answername"}, + $target,$token,$tagstack,$parstack,$parser, + $safeeval,-2); + } + } elsif ($target eq 'edit') { + $result .= &Apache::edit::tag_end(); + } + return $result; +} + +sub insert_answergroup { + return ' + + + + + '; +} + +sub start_value { + my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; + my $result; + if ( $target eq 'web' || $target eq 'tex' || + $target eq 'grade' || $target eq 'webgrade' || + $target eq 'answer' || $target eq 'analyze' ) { + my $bodytext = &Apache::lonxml::get_all_text("/value",$parser,$style); + $bodytext = &Apache::run::evaluate($bodytext,$safeeval, + $$parstack[-1]); + + push(@{ $answer{$cur_name}{'answers'} },[$bodytext]); + + } elsif ($target eq 'edit') { + $result.=&Apache::edit::tag_start($target,$token); + my $bodytext = &Apache::lonxml::get_all_text("/value",$parser,$style); + $result.=&Apache::edit::editline($token->[1],$bodytext,undef,40). + &Apache::edit::end_row(); + } elsif ($target eq 'modified') { + $result=$token->[4].&Apache::edit::modifiedfield('/value',$parser); + } + return $result; +} + +sub end_value { + my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; + my $result; + if ($target eq 'edit') { + $result = &Apache::edit::end_table(); + } + return $result; +} + +sub insert_value { + return ' + '; +} + +sub start_vector { + my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; + my $result; + if ( $target eq 'web' || $target eq 'tex' || + $target eq 'grade' || $target eq 'webgrade' || + $target eq 'answer' || $target eq 'analyze' ) { + my $bodytext = &Apache::lonxml::get_all_text("/vector",$parser,$style); + my @values = &Apache::run::run($bodytext,$safeeval,$$parstack[-1]); + if (@values == 1) { + @values = split(',',$values[0]); + } + push(@{ $answer{$cur_name}{'answers'} },\@values); + } elsif ($target eq 'edit') { + $result.=&Apache::edit::tag_start($target,$token); + my $bodytext = &Apache::lonxml::get_all_text("/vector",$parser,$style); + $result.=&Apache::edit::editline($token->[1],$bodytext,undef,40). + &Apache::edit::end_row(); + } elsif ($target eq 'modified') { + $result=$token->[4].&Apache::edit::modifiedfield('/vector',$parser); + } + return $result; +} + +sub end_vector { + my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; + my $result; + if ($target eq 'edit') { + $result = &Apache::edit::end_table(); + } + return $result; +} + +sub insert_vector { + return ' + '; +} + +sub start_array { + my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; + my $result; + if ( $target eq 'web' || $target eq 'tex' || + $target eq 'grade' || $target eq 'webgrade' || + $target eq 'answer' || $target eq 'analyze' ) { + my $bodytext = &Apache::lonxml::get_all_text("/array",$parser,$style); + my @values = &Apache::run::evaluate($bodytext,$safeeval, + $$parstack[-1]); + push(@{ $answer{$cur_name}{'answers'} },@values); + } + return $result; +} + +sub end_array { + my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; + my $result; + return $result; +} + +sub start_unit { + my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; + my $result; + return $result; +} + +sub end_unit { + my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; + my $result; + return $result; } sub start_numericalresponse { - my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; - my $id = &Apache::response::start_response($parstack,$safeeval); - my $result; - if ($target eq 'edit') { - $result.=&Apache::edit::tag_start($target,$token); - $result.=&Apache::edit::text_arg('Answer:','answer',$token); - if ($token->[1] eq 'numericalresponse') { - $result.=&Apache::edit::text_arg('Unit:','unit',$token,5); - $result.=&Apache::edit::text_arg('Format:','format',$token,4); - } elsif ($token->[1] eq 'stringresponse') { - $result.=&Apache::edit::select_arg('Type:','type', - ['cs','ci','mc'],$token); - } elsif ($token->[1] eq 'formularesponse') { - $result.=&Apache::edit::text_arg('Sample Points:','samples',$token,40); - } - $result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row(); - } elsif ($target eq 'modified') { - my $constructtag; - if ($token->[1] eq 'numericalresponse') { - $constructtag=&Apache::edit::get_new_args($token,$parstack,$safeeval, - 'answer','unit','format'); - } elsif ($token->[1] eq 'stringresponse') { - $constructtag=&Apache::edit::get_new_args($token,$parstack,$safeeval, - 'answer','type'); - } elsif ($token->[1] eq 'formularesponse') { - $constructtag=&Apache::edit::get_new_args($token,$parstack,$safeeval, - 'answer','samples'); - } - if ($constructtag) { - $result = &Apache::edit::rebuild_tag($token); - $result.=&Apache::edit::handle_insert(); - } - } elsif ($target eq 'meta') { - $result=&Apache::response::meta_package_write('numericalresponse'); - } - return $result; + my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; + &Apache::lonxml::register('Apache::caparesponse', + ('answer','answergroup','value','array','unit', + 'vector')); + push(@Apache::lonxml::namespace,'caparesponse'); + my $id = &Apache::response::start_response($parstack,$safeeval); + my $result; + undef(%answer); + undef(%{$safeeval->varglob('LONCAPA::CAPAresponse_args')}); + if ($target eq 'edit') { + $result.=&Apache::edit::tag_start($target,$token); + $result.=&Apache::edit::text_arg('Answer:','answer',$token); + if ($token->[1] eq 'numericalresponse') { + $result.=&Apache::edit::text_arg('Incorrect Answers:','incorrect', + $token). + &Apache::loncommon::help_open_topic('numerical_wrong_answers'); + $result.=&Apache::edit::text_arg('Unit:','unit',$token,5). + &Apache::loncommon::help_open_topic('Physical_Units'); + $result.=&Apache::edit::text_arg('Format:','format',$token,4). + &Apache::loncommon::help_open_topic('Numerical_Response_Format'); + } elsif ($token->[1] eq 'formularesponse') { + $result.=&Apache::edit::text_arg('Sample Points:','samples', + $token,40). + &Apache::loncommon::help_open_topic('Formula_Response_Sampling'); + } + $result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row(); + } elsif ($target eq 'modified') { + my $constructtag; + if ($token->[1] eq 'numericalresponse') { + $constructtag=&Apache::edit::get_new_args($token,$parstack, + $safeeval,'answer', + 'incorrect','unit', + 'format'); + } elsif ($token->[1] eq 'formularesponse') { + $constructtag=&Apache::edit::get_new_args($token,$parstack, + $safeeval,'answer', + 'samples'); + } + if ($constructtag) { + $result = &Apache::edit::rebuild_tag($token); + $result.=&Apache::edit::handle_insert(); + } + } elsif ($target eq 'meta') { + $result=&Apache::response::meta_package_write('numericalresponse'); + } elsif ($target eq 'answer' || $target eq 'grade') { + &Apache::response::reset_params(); + } elsif ($target eq 'web') { + my $partid = $Apache::inputtags::part; + my $hideunit=&Apache::lonnet::EXT('resource.'.$partid.'_'.$id.'.turnoffunit'); + &Apache::lonxml::debug("Got unit $hideunit for $partid $id"); + #no way to enter units, with radio buttons + if ((lc($hideunit) eq "yes") && ($Apache::lonhomework::type ne 'exam')) { + my $unit=&Apache::lonxml::get_param_var('unit',$parstack, + $safeeval); + if ($unit =~ /\S/) { $result.=" (in $unit) "; } + } + if ( &Apache::response::show_answer() ) { + &set_answertext($tag_internal_answer_name,$target,$token,$tagstack, + $parstack,$parser,$safeeval,-1); + } + } + return $result; } -sub end_numericalresponse { - my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; - my $result = ''; - if ( $target eq 'grade' ) { - if ( defined $ENV{'form.submitted'}) { - &Apache::response::setup_params($$tagstack[-1]); - $safeeval->share_from('capa',['&caparesponse_capa_check_answer']); - my $partid = $Apache::inputtags::part; - my $id = $Apache::inputtags::response['-1']; - my $response = $ENV{'form.HWVAL'.$id}; - if ( $response =~ /[^\s]/) { - my %previous = &Apache::response::check_for_previous($response,$partid,$id); - $Apache::lonhomework::results{"resource.$partid.$id.submission"}=$response; - &Apache::lonxml::debug("submitted a $response
\n"); - &Apache::lonxml::debug($$parstack[$#$parstack] . "\n
"); - $response =~ s/\\/\\\\/g; - $response =~ s/\'/\\\'/g; - &Apache::lonxml::debug("current $response"); - my $expression="&caparesponse_check_list('".$response."','". - $$parstack[$#$parstack]; - foreach my $key (keys(%Apache::inputtags::params)) { - $expression.= ';my $'. #' - $key.'="'.$Apache::inputtags::params{$key}.'"'; - } - if ($$tagstack[-1] eq 'formularesponse') { - $expression.=';my $type="fml";'; - } elsif ($$tagstack[-1] eq 'numericalresponse') { - $expression.=';my $type="float";'; - } - $expression.="');"; - $result = &Apache::run::run($expression,$safeeval); - my ($awards) = split /:/ , $result; - my ($ad) = &Apache::inputtags::finalizeawards(split /,/ , $awards); - &Apache::response::handle_previous(\%previous,$ad); - $Apache::lonhomework::results{"resource.$partid.$id.awarddetail"}=$ad; - &Apache::lonxml::debug("$expression"); - &Apache::lonxml::debug("\n
result:$result:$Apache::lonxml::curdepth
\n"); - $result=''; - } - } - } elsif ($target eq 'web') { - my $award = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"}; - my $status = $Apache::inputtags::status['-1']; - if ($award =~ /^correct/ || $status eq "SHOW_ANSWER" ) { - my (@answers)=&Apache::lonxml::get_param_var('answer',$parstack, - $safeeval); - my (@formats)=&Apache::lonxml::get_param_var('format',$parstack, - $safeeval); - my $unit=&Apache::lonxml::get_param_var('unit',$parstack,$safeeval); +sub set_answertext { + my ($name,$target,$token,$tagstack,$parstack,$parser,$safeeval, + $response_level) = @_; + &add_in_tag_answer($parstack,$safeeval,$response_level); + + if ($name eq '' || !ref($answer{$name})) { + if (ref($answer{$tag_internal_answer_name})) { + $name = $tag_internal_answer_name; + } else { + $name = (sort(keys(%answer)))[0]; + } + } + return if ($name eq '' || !ref($answer{$name})); + + my (@formats)=&Apache::lonxml::get_param_var('format',$parstack, + $safeeval,$response_level); + my $unit=&Apache::lonxml::get_param_var('unit',$parstack,$safeeval, + $response_level); + + &Apache::lonxml::debug("answer looks to be $name"); + my @answertxt; + for (my $i=0; $i < scalar(@{$answer{$name}{'answers'}}); $i++) { + my $answertxt; + my $answer=$answer{$name}{'answers'}[$i]; + foreach my $element (@$answer) { + if ( scalar(@$tagstack) + && $tagstack->[$response_level] ne 'numericalresponse') { + $answertxt.=$element.','; + } else { + my $format; + if ($#formats > 0) { + $format=$formats[$i]; + } else { + $format=$formats[0]; + } + if ($unit=~/\$/) { $format="\$".$format; $unit=~s/\$//g; } + if ($unit=~/\,/) { $format="\,".$format; $unit=~s/\,//g; } + my $formatted=&format_number($element,$format,$target, + $safeeval); + $answertxt.=' '.$formatted.','; + } + + } + chop($answertxt); + if ($target eq 'web') { + $answertxt.=" $unit "; + } + + push(@answertxt,$answertxt) + } + + my $id = $Apache::inputtags::response[-1]; + $Apache::inputtags::answertxt{$id}=\@answertxt; +} + +sub setup_capa_args { + my ($safeeval,$parstack,$args,$response) = @_; + my $args_ref= \%{$safeeval->varglob('LONCAPA::CAPAresponse_args')}; + undef(%{ $args_ref }); + + foreach my $arg (@{$args}) { + $$args_ref{$arg}= + &Apache::lonxml::get_param($arg,$parstack,$safeeval); + } + foreach my $key (keys(%Apache::inputtags::params)) { + $$args_ref{$key}=$Apache::inputtags::params{$key}; + } + &setup_capa_response($args_ref,$response); + return $args_ref; +} + +sub setup_capa_response { + my ($args_ref,$response) = @_; + + if (ref($response)) { + $$args_ref{'response'}=dclone($response); + } else { + $$args_ref{'response'}=dclone([$response]); + } +} - $result="
The computer got "; +sub check_submission { + my ($response,$partid,$id,$tag,$parstack,$safeeval,$ignore_sig)=@_; + my @args = ('type','tol','sig','format','unit','calc','samples','preprocess'); + my $args_ref = &setup_capa_args($safeeval,$parstack,\@args,$response); - for (my $i=0; $i <= $#answers; $i++) { - my $answer=$answers[$i]; - my $format; - if ($#formats > 0) { - $format=$formats[$i]; + my $hideunit= + &Apache::lonnet::EXT('resource.'.$partid.'_'.$id.'.turnoffunit'); + #no way to enter units, with radio buttons + if ($Apache::lonhomework::type eq 'exam' || + lc($hideunit) eq "yes") { + delete($$args_ref{'unit'}); + } + #sig fig don't make much sense either + if (($Apache::lonhomework::type eq 'exam' || + &Apache::response::submitted('scantron') || + $ignore_sig) && + $tag eq 'numericalresponse') { + delete($$args_ref{'sig'}); + } + + if ($tag eq 'formularesponse') { + if ($$args_ref{'samples'}) { + $$args_ref{'type'}='fml'; } else { - $format=$formats[0]; + $$args_ref{'type'}='math'; } - if ((defined($format)) && ($format ne '')) { - &Apache::lonxml::debug("formatting with :$format: answer :$answer:"); - $result.=sprintf('%.'.$format,$answer).','; + } elsif ($tag eq 'numericalresponse') { + $$args_ref{'type'}='float'; + } elsif ($tag eq 'stringresponse') { + if ($$args_ref{'type'} eq '') { + $$args_ref{'type'} = 'ci'; + } + } + + &add_in_tag_answer($parstack,$safeeval); + + if (!%answer) { + &Apache::lonxml::error("No answers are defined"); + } + + my (@final_awards,@final_msgs,@names); + foreach my $name (keys(%answer)) { + &Apache::lonxml::debug(" doing $name with ".join(':',@{ $answer{$name}{'answers'} })); + + ${$safeeval->varglob('LONCAPA::CAPAresponse_answer')}=dclone($answer{$name}); + &setup_capa_response($args_ref,$response); + use Time::HiRes; + my $t0 = [Time::HiRes::gettimeofday()]; + my ($result,@msgs) = + &Apache::run::run("&caparesponse_check_list()",$safeeval); + &Apache::lonxml::debug("checking $name $result with $response took ".&Time::HiRes::tv_interval($t0)); + + &Apache::lonxml::debug('msgs are '.join(':',@msgs)); + my ($awards)=split(/:/,$result); + my @awards= split(/,/,$awards); + my ($ad, $msg) = &Apache::inputtags::finalizeawards(\@awards,\@msgs); + push(@final_awards,$ad); + push(@final_msgs,$msg); + push(@names,$name); + } + my ($ad, $msg, $name) = &Apache::inputtags::finalizeawards(\@final_awards, + \@final_msgs, + \@names,1); + &Apache::lonxml::debug(" name of picked award is $name from ".join(', ',@names)); + return($ad,$msg, $name); +} + +sub stringresponse_gradechange { + my ($part,$id,$previous,$caller,$response,$ad,$type) = @_; + return unless (ref($previous) eq 'HASH'); + my ($prevarray,$prevaward); + my %typenames = ( + cs => 'Case sensitive', + ci => 'Case insensitive', + ); + if ($caller eq 'cs') { + return unless (ref($previous->{'version'}) eq 'ARRAY'); + $prevarray = $previous->{'version'}; + $prevaward = $previous->{'award'}; + } elsif ($caller eq 'ci') { + return unless (ref($previous->{'versionci'}) eq 'ARRAY'); + $prevarray = $previous->{'versionci'}; + $prevaward = $previous->{'awardci'}; + } else { + return; + } + my $count=0; + my %count_lookup; + foreach my $i (1..$Apache::lonhomework::history{'version'}) { + my $prefix = $i.":resource.$part"; + next if (!exists($Apache::lonhomework::history{"$prefix.award"})); + $count++; + $count_lookup{$i} = $count; + } + my ($symb,$courseid,$domain,$name) = &Apache::lonnet::whichuser(); + my %coursedesc = &Apache::lonnet::coursedescription($courseid); + my $cdom = $coursedesc{'domain'}; + my $versions = ' (submissions: '.join(', ',map {$count_lookup{$_} } @{$prevarray}).')'; + my $warning = "String Response ($typenames{$type}) grading discrepancy: award for response of $response changed from $prevaward".$versions." to $ad; user: $name:$domain in course: $courseid for part: $part response: $id for symb: $symb"; + &Apache::lonnet::logthis($warning); + my $origmail = $Apache::lonnet::perlvar{'lonAdmEMail'}; + my $recipients = &Apache::loncommon::build_recipient_list(undef,'errormail', + $cdom,$origmail); + if ($recipients ne '') { + &Apache::lonmsg::sendemail($recipients,'Stringresponse Grading Discrepancy',$warning); + } + return; +} + +sub add_in_tag_answer { + my ($parstack,$safeeval,$response_level) = @_; + my @answer=&Apache::lonxml::get_param_var('answer',$parstack,$safeeval, + $response_level); + &Apache::lonxml::debug('answer is'.join(':',@answer)); + if (@answer && $answer[0] =~ /\S/) { + $answer{$tag_internal_answer_name}= {'type' => 'ordered', + 'answers' => [\@answer] }; + } +} + +sub capa_formula_fix { + my ($expression)=@_; + return &Apache::response::implicit_multiplication($expression); +} + +sub end_numericalresponse { + my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; + + &Apache::lonxml::deregister('Apache::caparesponse', + ('answer','answergroup','value','array','unit', + 'vector')); + pop(@Apache::lonxml::namespace); + + my $increment=1; + my $result = ''; + if (!$Apache::lonxml::default_homework_loaded) { + &Apache::lonxml::default_homework_load($safeeval); + } + my $partid = $Apache::inputtags::part; + my $id = $Apache::inputtags::response[-1]; + my $tag; + my $safehole = new Safe::Hole; + $safeeval->share_from('capa',['&caparesponse_capa_check_answer']); + + if (scalar(@$tagstack)) { $tag=$$tagstack[-1]; } + if ( $target eq 'grade' && &Apache::response::submitted() ) { + &Apache::response::setup_params($tag,$safeeval); + if ($Apache::lonhomework::type eq 'exam' && + (($tag eq 'formularesponse') || ($tag eq 'mathresponse'))) { + $increment=&Apache::response::scored_response($partid,$id); } else { - &Apache::lonxml::debug("no format answer :$answer:"); - $result.="$answer,"; + my $response = &Apache::response::getresponse(); + if ( $response =~ /[^\s]/) { + my %previous = &Apache::response::check_for_previous($response,$partid,$id); + &Apache::lonxml::debug("submitted a $response
\n"); + &Apache::lonxml::debug($$parstack[-1] . "\n
"); + + if ( &Apache::response::submitted('scantron')) { + &add_in_tag_answer($parstack,$safeeval); + my ($values,$display)=&make_numerical_bubbles($partid,$id, + $target,$parstack,$safeeval); + $response=$values->[$response]; } - } - chop $result; - $result.=" $unit.

"; - } - } elsif ($target eq 'edit') { - $result.=''.&Apache::edit::end_table; - } elsif ($target eq 'answer') { - - my (@answers)=&Apache::lonxml::get_param_var('answer',$parstack,$safeeval); - my (@formats)=&Apache::lonxml::get_param_var('format',$parstack,$safeeval); - my $unit=&Apache::lonxml::get_param_var('unit',$parstack,$safeeval); - my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval); + $Apache::lonhomework::results{"resource.$partid.$id.submission"}=$response; + my ($ad,$msg,$name)=&check_submission($response,$partid,$id, + $tag,$parstack, + $safeeval); + + &Apache::lonxml::debug('ad is'.$ad); + if ($ad eq 'SIG_FAIL') { + my ($sig_u,$sig_l)= + &get_sigrange($Apache::inputtags::params{'sig'}); + $msg=join(':',$msg,$sig_l,$sig_u); + &Apache::lonxml::debug("sigs bad $sig_u $sig_l ". + $Apache::inputtags::params{'sig'}); + } + &Apache::lonxml::debug("\n
result:$result:$Apache::lonxml::curdepth
\n"); + if (($ad eq 'INCORRECT' || $ad eq 'APPROX_ANS' || + $ad eq 'EXACT_ANS')) { + if ($Apache::lonhomework::type eq 'survey') { + $ad='SUBMITTED'; + } elsif ($Apache::lonhomework::type eq 'surveycred') { + $ad='SUBMITTED_CREDIT'; + } elsif ($Apache::lonhomework::type eq 'anonsurvey') { + $ad='ANONYMOUS'; + } elsif ($Apache::lonhomework::type eq 'anonsurveycred') { + $ad='ANONYMOUS_CREDIT'; + } + } + &Apache::response::handle_previous(\%previous,$ad); + $Apache::lonhomework::results{"resource.$partid.$id.awarddetail"}=$ad; + $Apache::lonhomework::results{"resource.$partid.$id.awardmsg"}=$msg; + $Apache::lonhomework::results{"resource.$partid.$id.answername"}=$name; + $result=''; + } + } + } elsif ($target eq 'web' || $target eq 'tex') { + &check_for_answer_errors($parstack,$safeeval); + my $award = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"}; + my $status = $Apache::inputtags::status['-1']; + if ($Apache::lonhomework::type eq 'exam') { + # FIXME support multi dimensional numerical problems + # in exam bubbles + my ($bubble_values,$bubble_display)= + &make_numerical_bubbles($partid,$id,$target,$parstack, + $safeeval); + my $number_of_bubbles = scalar(@{ $bubble_values }); + my $unit=&Apache::lonxml::get_param_var('unit',$parstack, + $safeeval); + my @alphabet=('A'..'Z'); + if ($target eq 'web') { + if ($tag eq 'numericalresponse') { + if ($unit=~/\S/) {$result.=' (in '.$unit.')

';} + $result.= ''; + my $previous=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.$id.submission"}; + for (my $ind=0;$ind<$number_of_bubbles;$ind++) { + my $checked=''; + if ($previous eq $bubble_values->[$ind]) { + $checked=" checked='on' "; + } + $result.=''; + } + $result.='
'.$alphabet[$ind].': '. + $bubble_display->[$ind].'
'; + } + } elsif ($target eq 'tex') { + if ((defined $unit) and ($unit=~/\S/) and ($Apache::lonhomework::type eq 'exam')) { + $result.=' \textit{(in} \verb|'.$unit.'|\textit{)} '; + } + if ($tag eq 'numericalresponse') { + my ($celllength,$number_of_tables,@table_range)= + &get_table_sizes($number_of_bubbles,$bubble_display); + my $j=0; + my $cou=0; + $result.='\vskip 2mm \noindent '; + $result .= '\textbf{'.$Apache::lonxml::counter.'.} \vskip -3mm '; + + for (my $i=0;$i<$number_of_tables;$i++) { + if ($i == 0) { + $result .= '\vskip -1mm '; + } else { + $result .= '\vskip 1mm '; + } + $result.='\noindent \setlength{\tabcolsep}{2 mm}\hskip 2pc\begin{tabular}{'; + for (my $ind=0;$ind<$table_range[$j];$ind++) { + $result.='p{3 mm}p{'.$celllength.' mm}'; + } + $result.='}'; + for (my $ind=$cou;$ind<$cou+$table_range[$j];$ind++) { + $result.='\hskip -4 mm {\small \textbf{'.$alphabet[$ind].'}}$\bigcirc$ & \hskip -3 mm {\small '.$bubble_display->[$ind].'} '; + if ($ind != $cou+$table_range[$j]-1) {$result.=' & ';} + } + $cou += $table_range[$j]; + $j++; + $result.='\\\\\end{tabular}\vskip 0 mm '; + } + } else { + $increment = &Apache::response::repetition(); + } + } + } + if (($target eq 'web') && ($tag eq 'formularesponse') + && ($Apache::lonhomework::type ne 'exam') && ($Apache::inputtags::status['-1'] eq 'CAN_ANSWER') + && (&Apache::lonnet::EXT('resource.'.$partid.'_'.$id.'.turnoffeditor') ne 'yes')) { + $result.=&Apache::response::edit_mathresponse_button($id,"HWVAL_$id"); + } + + &Apache::response::setup_prior_tries_hash(\&format_prior_response_numerical); + } elsif ($target eq 'edit') { + $result.=''.&Apache::edit::end_table; + } elsif ($target eq 'answer' || $target eq 'analyze') { + my $part_id="$partid.$id"; + if ($target eq 'analyze') { + push (@{ $Apache::lonhomework::analyze{"parts"} },$part_id); + $Apache::lonhomework::analyze{"$part_id.type"} = $tag; + my (@incorrect)=&Apache::lonxml::get_param_var('incorrect',$parstack,$safeeval); + if ($#incorrect eq 0) { @incorrect=(split(/,/,$incorrect[0])); } + push (@{ $Apache::lonhomework::analyze{"$part_id.incorrect"} }, @incorrect); + &Apache::response::check_if_computed($token,$parstack, + $safeeval,'answer'); + } + if (scalar(@$tagstack)) { + &Apache::response::setup_params($tag,$safeeval); + } + &add_in_tag_answer($parstack,$safeeval); + my (@formats)=&Apache::lonxml::get_param_var('format',$parstack,$safeeval); + + my $unit=&Apache::lonxml::get_param_var('unit',$parstack,$safeeval); + + if ($target eq 'answer') { + $result.=&Apache::response::answer_header($tag,undef, + scalar(keys(%answer))); + if ($tag eq 'numericalresponse' + && $Apache::lonhomework::type eq 'exam') { + my ($bubble_values,undef,$correct) = &make_numerical_bubbles($partid, + $id,$target,$parstack,$safeeval); + $result.=&Apache::response::answer_part($tag,$correct); + } + } + foreach my $name (sort(keys(%answer))) { + my @answers = @{ $answer{$name}{'answers'} }; + if ($target eq 'analyze') { + foreach my $info ('answer','ans_high','ans_low','format') { + $Apache::lonhomework::analyze{"$part_id.$info"}{$name}=[]; + } + } + my ($sigline,$tolline); + if ($name ne $tag_internal_answer_name + || scalar(keys(%answer)) > 1) { + $result.=&Apache::response::answer_part($tag,$name); + } + for(my $i=0;$i<=$#answers;$i++) { + my $ans=$answers[$i]; + my $fmt=$formats[0]; + if (@formats && $#formats) {$fmt=$formats[$i];} + my ($sighigh,$siglow); + if ($Apache::inputtags::params{'sig'}) { + ($sighigh,$siglow)=&get_sigrange($Apache::inputtags::params{'sig'}); + } + my @vector; + if (ref($ans)) { + @vector = @{ $ans }; + } else { + @vector = ($ans); + } + my @all_answer_info; + foreach my $element (@vector) { + my ($high,$low); + if ($Apache::inputtags::params{'tol'}) { + ($high,$low)=&get_tolrange($element,$Apache::inputtags::params{'tol'}); + } + if ($target eq 'answer') { + if ($fmt && $tag eq 'numericalresponse') { + $fmt=~s/e/E/g; + if ($unit=~/\$/) { $fmt="\$".$fmt; $unit=~s/\$//g; } + if ($unit=~/\,/) { $fmt="\,".$fmt; $unit=~s/\,//g; } + $element = &format_number($element,$fmt,$target,$safeeval); + #if ($high) { + # $high=&format_number($high,$fmt,$target,$safeeval); + # $low =&format_number($low,$fmt,$target,$safeeval); + #} + } + if ($high && $tag eq 'numericalresponse') { + $element.='; ['.$low.'; '.$high.']'; + $tolline .= "[$low, $high]"; + } + if (defined($sighigh) && $tag eq 'numericalresponse') { + if ($env{'form.answer_output_mode'} eq 'tex') { + $element.= "; Sig $siglow - $sighigh"; + } else { + $element.= " Sig $siglow - $sighigh"; + $sigline .= "[$siglow, $sighigh]"; + } + } + push(@all_answer_info,$element); + + } elsif ($target eq 'analyze') { + push (@{ $Apache::lonhomework::analyze{"$part_id.answer"}{$name}[$i] }, $element); + if ($high) { + push (@{ $Apache::lonhomework::analyze{"$part_id.ans_high"}{$name}[$i] }, $high); + push (@{ $Apache::lonhomework::analyze{"$part_id.ans_low"}{$name}[$i] }, $low); + } + if ($fmt) { + push (@{ $Apache::lonhomework::analyze{"$part_id.format"}{$name}[$i] }, $fmt); + } + } + } + if ($target eq 'answer') { + $result.= &Apache::response::answer_part($tag,join('; ',@all_answer_info)); + } + } + + my @fmt_ans; + for(my $i=0;$i<=$#answers;$i++) { + my $ans=$answers[$i]; + my $fmt=$formats[0]; + if (@formats && $#formats) {$fmt=$formats[$i];} + foreach my $element (@$ans) { + if ($fmt && $tag eq 'numericalresponse') { + $fmt=~s/e/E/g; + if ($unit=~/\$/) { $fmt="\$".$fmt; $unit=~s/\$//g; } + if ($unit=~/\,/) { $fmt="\,".$fmt; $unit=~s/\,//g; } + $element = &format_number($element,$fmt,$target, + $safeeval); + if ($fmt=~/\$/ && $unit!~/\$/) { $element=~s/\$//; } + } + } + push(@fmt_ans,join(',',@$ans)); + } + my $response=\@fmt_ans; + + my $hideunit=&Apache::lonnet::EXT('resource.'.$partid.'_'. + $id.'.turnoffunit'); + if ($unit ne '' && + ! ($Apache::lonhomework::type eq 'exam' || + lc($hideunit) eq "yes") ) { + my $cleanunit=$unit; + $cleanunit=~s/\$\,//g; + foreach my $ans (@fmt_ans) { + $ans.=" $cleanunit"; + } + } + my ($ad,$msg)=&check_submission($response,$partid,$id,$tag, + $parstack,$safeeval); + if ($ad ne 'EXACT_ANS' && $ad ne 'APPROX_ANS') { + my $error; + if ($tag eq 'formularesponse') { + $error=&mt("Computer's answer is incorrect ([_1]).",'"'.join(', ',@$response).'"'); + } else { + # answer failed check if it is sig figs that is failing + my ($ad,$msg)=&check_submission($response,$partid,$id, + $tag,$parstack, + $safeeval,1); + $error=&mt("Computer's answer is incorrect ([_1]).",'"'.join(', ',@$response).'"').' '; + if ($sigline ne '') { + $error.=&mt('It is likely that the tolerance range [_1] or significant figures [_2] need to be adjusted.',$tolline,$sigline); + } else { + $error.=&mt('It is likely that the tolerance range [_1] needs to be adjusted.',$tolline); + } + } + if ($ad ne 'EXACT_ANS' && $ad ne 'APPROX_ANS') { + &Apache::lonxml::error($error); + } else { + &Apache::lonxml::warning($error); + } + } + + if (defined($unit) and ($unit ne '') and + $tag eq 'numericalresponse') { + if ($target eq 'answer') { + if ($env{'form.answer_output_mode'} eq 'tex') { + $result.=&Apache::response::answer_part($tag, + " Unit: $unit "); + } else { + $result.=&Apache::response::answer_part($tag, + "Unit: $unit"); + } + } elsif ($target eq 'analyze') { + push (@{ $Apache::lonhomework::analyze{"$part_id.unit"} }, $unit); + } + } + if ($tag eq 'formularesponse' && $target eq 'answer') { + my $samples=&Apache::lonxml::get_param('samples',$parstack,$safeeval); + $result.=&Apache::response::answer_part($tag,$samples); + } + $result.=&Apache::response::next_answer($tag,$name); + } + if ($target eq 'answer') { + $result.=&Apache::response::answer_footer($tag); + } + } + if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' || + $target eq 'tex' || $target eq 'analyze') { + if (($tag eq 'formularesponse') && ($target eq 'analyze')) { + my $type = &Apache::lonnet::EXT('resource.'.$partid.'_'.$id.'.type'); + if ($type eq 'exam') { + $increment = &Apache::response::repetition(); + } + } + &Apache::lonxml::increment_counter($increment,"$partid.$id"); + if ($target eq 'analyze') { + &Apache::lonhomework::set_bubble_lines(); + } + } + &Apache::response::end_response(); + return $result; +} + +sub format_prior_response_numerical { + my ($mode,$answer) = @_; + if (ref($answer)) { + my $result = ''; + foreach my $element (@{ $answer }) { + $result.= ''; + } + $result.='
'. + &HTML::Entities::encode($element,'"<>&').'
'; + return $result; + } + return ''. + &HTML::Entities::encode($answer,'"<>&').''; + +} - $result.=&Apache::response::answer_header($$tagstack[-1]); - for(my $i=0;$i<=$#answers;$i++) { - my $ans=$answers[$i]; - my $fmt; - if (@formats) { - if ($#formats) { - $fmt=$formats[$i]; +sub check_for_answer_errors { + my ($parstack,$safeeval) = @_; + &add_in_tag_answer($parstack,$safeeval); + my %counts; + foreach my $name (keys(%answer)) { + push(@{$counts{scalar(@{$answer{$name}{'answers'}})}},$name); + } + if (scalar(keys(%counts)) > 1) { + my $counts = join(' ',map { + my $count = $_; + &mt("Answers [_1] had [_2] components.", + ''.join(', ',@{$counts{$count}}).'', + $count); + } (sort(keys(%counts)))); + &Apache::lonxml::error(&mt("All answers must have the same number of components. Varying numbers of answers were seen. ").$counts); + } + my $expected_number_of_inputs = (keys(%counts))[0]; + if ( $expected_number_of_inputs > 0 + && $expected_number_of_inputs != scalar(@Apache::inputtags::inputlist)) { + &Apache::lonxml::error(&mt("Expected [_1] input fields, but there were only [_2] seen.", + $expected_number_of_inputs, + scalar(@Apache::inputtags::inputlist))); + } +} + +sub get_table_sizes { + my ($number_of_bubbles,$rbubble_values)=@_; + my $scale=2; #mm for one digit + my $cell_width=0; + foreach my $member (@$rbubble_values) { + my $cell_width_real=0; + if ($member=~/(\+|-)?(\d*)\.?(\d*)\s*\$?\\times\s*10\^{(\+|-)?(\d+)}\$?/) { + $cell_width_real=(length($2)+length($3)+length($5)+7)*$scale; + } elsif ($member=~/(\d*)\.?(\d*)(E|e)(\+|-)?(\d*)/) { + $cell_width_real=(length($1)+length($2)+length($5)+9)*$scale; + } elsif ($member=~/(\d*)\.(\d*)/) { + $cell_width_real=(length($1)+length($2)+3)*$scale; } else { - $fmt=$formats[0]; + $cell_width_real=(length($member)+1)*$scale*0.9; + } + if ($cell_width_real>$cell_width) {$cell_width=$cell_width_real;} + } + $cell_width+=8; + my $textwidth; + if ($env{'form.textwidth'} ne '') { + $env{'form.textwidth'}=~/(\d*)\.?(\d*)/; + $textwidth=$1.'.'.$2; + } else { + $env{'form.textwidth'}=~/(\d+)\.?(\d*)/; + $textwidth=$1.'.'.$2; + } + my $bubbles_per_line=int($textwidth/$cell_width); + if ($bubbles_per_line > $number_of_bubbles) { + $bubbles_per_line=$number_of_bubbles; + } elsif (($bubbles_per_line > $number_of_bubbles/2) + && ($number_of_bubbles % 2==0)) { + $bubbles_per_line=$number_of_bubbles/2; + } + if ($bubbles_per_line < 1) { + $bubbles_per_line=1; + } + my $number_of_tables = int($number_of_bubbles/$bubbles_per_line); + my @table_range = (); + for (my $i=0;$i<$number_of_tables;$i++) {push @table_range,$bubbles_per_line;} + if ($number_of_bubbles % $bubbles_per_line) { + $number_of_tables++; + push @table_range,($number_of_bubbles % $bubbles_per_line); + } + $cell_width-=8; + $cell_width=$cell_width*3/4; + return ($cell_width,$number_of_tables,@table_range); +} + +sub format_number { + my ($number,$format,$target,$safeeval)=@_; + my $ans; + if ($format eq '') { + #What is the number? (integer,decimal,floating point) + if ($number=~/^(\d*\.?\d*)(E|e)[+\-]?(\d*)$/) { + $format = '3e'; + } elsif ($number=~/^(\d*)\.(\d*)$/) { + $format = '4f'; + } elsif ($number=~/^(\d*)$/) { + $format = 'd'; + } + } + if (!$Apache::lonxml::default_homework_loaded) { + &Apache::lonxml::default_homework_load($safeeval); + } + $ans=&Apache::run::run("&prettyprint(q\0$number\0,q\0$format\0,q\0$target\0)",$safeeval); + return $ans; +} + +sub make_numerical_bubbles { + my ($part,$id,$target,$parstack,$safeeval) =@_; + + if (!%answer) { + &Apache::lonxml::error(&mt("No answers defined for response [_1] in part [_2] to make bubbles for.",$id,$part)); + return ([],[],undef); + } + + my $number_of_bubbles = + &Apache::response::get_response_param($part.'_'.$id,'numbubbles',8); + + my ($format)=&Apache::lonxml::get_param_var('format',$parstack,$safeeval); + my $name = (exists($answer{$tag_internal_answer_name}) + ? $tag_internal_answer_name + : (sort(keys(%answer)))[0]); + + if ( scalar(@{$answer{$name}{'answers'}}) > 1) { + &Apache::lonxml::error("Only answers with 1 component are supported in exam mode"); + } + if (scalar(@{$answer{$name}{'answers'}[0]}) > 1) { + &Apache::lonxml::error("Vector answers are unsupported in exam mode."); + } + + my $answer = $answer{$name}{'answers'}[0][0]; + my (@incorrect)=&Apache::lonxml::get_param_var('incorrect',$parstack, + $safeeval); + if ($#incorrect eq 0) { @incorrect=(split(/,/,$incorrect[0])); } + + my @bubble_values=(); + my @alphabet=('A'..'Z'); + + &Apache::lonxml::debug("answer is $answer incorrect is @incorrect"); + my @oldseed=&Math::Random::random_get_seed(); + if (@incorrect) { + &Apache::lonxml::debug("inside ".(scalar(@incorrect)+1 gt $number_of_bubbles)); + if (defined($incorrect[0]) && + scalar(@incorrect)+1 >= $number_of_bubbles) { + &Apache::lonxml::debug("inside ".(scalar(@incorrect)+1).":$number_of_bubbles"); + &Apache::response::setrandomnumber(); + my @rand_inc=&Math::Random::random_permutation(@incorrect); + @bubble_values=@rand_inc[0..($number_of_bubbles-2)]; + @bubble_values=sort {$a <=> $b} (@bubble_values,$answer); + &Apache::lonxml::debug("Answer was :$answer: returning :".$#bubble_values.": which are :".join(':',@bubble_values)); + &Math::Random::random_set_seed(@oldseed); + + my $correct; + for(my $i=0; $i<=$#bubble_values;$i++) { + if ($bubble_values[$i] eq $answer) { + $correct = $alphabet[$i]; + last; + } + } + + if (defined($format) && $format ne '') { + my @bubble_display; + foreach my $value (@bubble_values) { + push(@bubble_display, + &format_number($value,$format,$target,$safeeval)); + } + return (\@bubble_values,\@bubble_display,$correct); + } else { + return (\@bubble_values,\@bubble_values,$correct); + } + } + if (defined($incorrect[0]) && + scalar(@incorrect)+1 < $number_of_bubbles) { + &Apache::lonxml::warning("Not enough incorrect answers were specified in the incorrect array, ignoring the specified incorrect answers and instead generating them (".join(',',@incorrect).")."); + } + } + my @factors = (1.13,1.17,1.25,1.33,1.45); #default values of factors + my @powers = (1..$number_of_bubbles); + &Apache::response::setrandomnumber(); + my $ind=&Math::Random::random_uniform_integer(1,0,$#powers); + my $power = $powers[$ind]; + $ind=&Math::Random::random_uniform_integer(1,0,$#factors); + my $factor = $factors[$ind]; + my @bubble_display; + my $answerfactor=$answer; + if ($answer==0) { + $answerfactor=&Math::Random::random_uniform_integer(1,1,100)/ + &Math::Random::random_uniform_integer(1,1,10); + } + for ($ind=0;$ind<$number_of_bubbles;$ind++) { + $bubble_values[$ind] = $answerfactor*($factor**($power-$powers[$#powers-$ind])); + $bubble_display[$ind] = &format_number($bubble_values[$ind], + $format,$target,$safeeval); + } + my $correct = $alphabet[$number_of_bubbles-$power]; + if ($answer==0) { + $correct='A'; + $bubble_values[0]=0; + $bubble_display[0] = &format_number($bubble_values[0], + $format,$target,$safeeval); + } + &Math::Random::random_set_seed(@oldseed); + return (\@bubble_values,\@bubble_display,$correct); +} + +sub get_tolrange { + my ($ans,$tol)=@_; + my ($high,$low); + if ($tol =~ /%$/) { + chop($tol); + my $change=$ans*($tol/100.0); + $high=$ans+$change; + $low=$ans-$change; + } else { + $high=$ans+$tol; + $low=$ans-$tol; + } + return ($high,$low); +} + +sub get_sigrange { + my ($sig)=@_; + #&Apache::lonxml::debug("Got a sig of :$sig:"); + my $courseid=$env{'request.course.id'}; + if ($env{'request.state'} ne 'construct' + && lc($env{"course.$courseid.disablesigfigs"}) eq 'yes') { + return (15,0); + } + my $sig_lbound; + my $sig_ubound; + if ($sig eq '') { + $sig_lbound = 0; #SIG_LB_DEFAULT + $sig_ubound =15; #SIG_UB_DEFAULT + } else { + ($sig_lbound,$sig_ubound) = split(/,/,$sig); + if (!defined($sig_lbound)) { + $sig_lbound = 0; #SIG_LB_DEFAULT + $sig_ubound =15; #SIG_UB_DEFAULT + } + if (!defined($sig_ubound)) { $sig_ubound=$sig_lbound; } + } + if (($sig_ubound<$sig_lbound) || + ($sig_lbound > 15) || + ($sig =~/(\+|-)/ ) ) { + my $errormsg=&mt("Invalid Significant figures detected")." ($sig)"; + if ($env{'request.state'} eq 'construct') { + $errormsg.= + &Apache::loncommon::help_open_topic('Significant_Figures'); } - } - if ($fmt) { $ans = sprintf('%.'.$fmt,$ans); } - $result.=&Apache::response::answer_part($$tagstack[-1],$ans); - } - if ($unit) { - $result.=&Apache::response::answer_part($$tagstack[-1], - ''.$unit.''); - } - if ($type || $token->[1] eq 'stringresponse') { - my $string='Case Insensitive'; - if ($type eq 'mc') { - $string='Multiple Choice'; - } elsif ($type eq 'cs') { - $string='Case Sensitive'; - } elsif ($type eq 'ci') { - $string='Case Insensitive'; - } elsif ($type eq 'fml') { - $string='Formula'; - } - $result.=&Apache::response::answer_part($$tagstack[-1], - ''.$string.''); - } - if ($$tagstack[-1] eq 'formularesponse') { - my $samples=&Apache::lonxml::get_param('samples',$parstack,$safeeval); - $result.=&Apache::response::answer_part($$tagstack[-1],$samples); - } - $result.=&Apache::response::answer_footer($$tagstack[-1]); - } - &Apache::response::end_response; - return $result; + &Apache::lonxml::error($errormsg); + } + return ($sig_ubound,$sig_lbound); +} + +sub format_prior_response_string { + my ($mode,$answer) =@_; + return ''. + &HTML::Entities::encode($answer,'"<>&').''; } sub start_stringresponse { - my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; - my $result; - if ($target eq 'meta') { - $result=&Apache::response::meta_package_write('stringresponse'); - } else { - $result.=&start_numericalresponse(@_); - } - return $result; + my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; + my $result; + my $id = &Apache::response::start_response($parstack,$safeeval); + undef(%answer); + if ($target eq 'meta') { + $result=&Apache::response::meta_package_write('stringresponse'); + } elsif ($target eq 'edit') { + $result.=&Apache::edit::tag_start($target,$token); + $result.=&Apache::edit::text_arg('Answer:','answer',$token); + $result.=&Apache::edit::select_arg('Type:','type', + [['cs','Case Sensitive'],['ci','Case Insensitive'], + ['mc','Case Insensitive, Any Order'], + ['re','Regular Expression']],$token); + $result.=&Apache::edit::text_arg('String to display for answer:', + 'answerdisplay',$token); + $result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row(); + } elsif ($target eq 'modified') { + my $constructtag; + $constructtag=&Apache::edit::get_new_args($token,$parstack, + $safeeval,'answer', + 'type','answerdisplay'); + if ($constructtag) { + $result = &Apache::edit::rebuild_tag($token); + $result.=&Apache::edit::handle_insert(); + } + } elsif ($target eq 'web') { + if ( &Apache::response::show_answer() ) { + my $answer= + &Apache::lonxml::get_param('answerdisplay',$parstack,$safeeval); + if (!defined $answer || $answer eq '') { + $answer= + &Apache::lonxml::get_param('answer',$parstack,$safeeval); + } + $Apache::inputtags::answertxt{$id}=[$answer]; + } + } elsif ($target eq 'answer' || $target eq 'grade') { + &Apache::response::reset_params(); + } + return $result; } sub end_stringresponse { - return end_numericalresponse(@_); + my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; + + my $result = ''; + my $part=$Apache::inputtags::part; + my $id=$Apache::inputtags::response[-1]; + my $answer=&Apache::lonxml::get_param('answer',$parstack,$safeeval); + my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval); + my $answerdisplay=&Apache::lonxml::get_param('answerdisplay',$parstack,$safeeval); + &Apache::lonxml::debug("current $answer ".$token->[2]); + if (!$Apache::lonxml::default_homework_loaded) { + &Apache::lonxml::default_homework_load($safeeval); + } + if ( $target eq 'grade' && &Apache::response::submitted() ) { + &Apache::response::setup_params('stringresponse',$safeeval); + $safeeval->share_from('capa',['&caparesponse_capa_check_answer']); + if ($Apache::lonhomework::type eq 'exam' || + &Apache::response::submitted('scantron')) { + &Apache::response::scored_response($part,$id); + + } else { + my $response = &Apache::response::getresponse(); + if ( $response =~ /[^\s]/) { + my %previous = &Apache::response::check_for_previous($response, + $part,$id, + undef,$type); + &Apache::lonxml::debug("submitted a $response
\n"); + &Apache::lonxml::debug($$parstack[-1] . "\n
"); + $Apache::lonhomework::results{"resource.$part.$id.submission"}= + $response; + my ($ad,$msg); + if ($type eq 're' ) { + # if the RE wasn't in a var it likely got munged, + # thus grab it from the var directly +# my $testans=$token->[2]->{'answer'}; +# if ($testans !~ m/^\s*\$/) { +# $answer=$token->[2]->{'answer'}; +# } + ${$safeeval->varglob('LONCAPA::response')}=$response; + $result = &Apache::run::run('if ($LONCAPA::response=~m'.$answer.') { return 1; } else { return 0; }',$safeeval); + &Apache::lonxml::debug("current $response"); + &Apache::lonxml::debug("current $answer"); + $ad = ($result) ? 'APPROX_ANS' : 'INCORRECT'; + } else { + my @args = ('type'); + my $args_ref = &setup_capa_args($safeeval,$parstack, + \@args,$response); + if ($$args_ref{'type'} eq '') { + $$args_ref{'type'} = 'ci'; + } + &add_in_tag_answer($parstack,$safeeval); + my (@final_awards,@final_msgs,@names,%ansstring); + foreach my $name (keys(%answer)) { + &Apache::lonxml::debug(" doing $name with ".join(':',@{ $answer{$name}{'answers'} })); + ${$safeeval->varglob('LONCAPA::CAPAresponse_answer')}=dclone($answer{$name}); + my ($result, @msgs)=&Apache::run::run("&caparesponse_check_list()",$safeeval); + if ($$args_ref{'type'} =~ /^c[si]$/) { + $ansstring{$name} = pop(@msgs); + my $control_chars_removed = pop(@msgs); + my $error = pop(@msgs); + if (($error ne '') || + ($control_chars_removed)) { + my ($symb,$courseid,$sdomain,$sname) = + &Apache::lonnet::whichuser(); + if ($control_chars_removed) { + my $showresponse = $response; + if ($response =~ /[\000-\037]/) { + $response =~ s/[\000-\037]//g; + } + if ($showresponse =~ /[\r\n\f]/) { + my @lines = split(/[\r\n\f]+/,$showresponse); + $showresponse = join('\\n',@lines); + } + &Apache::lonnet::logthis("Stringresponse grading: control characters stripped from submission ".$showresponse." for $sname:$sdomain in $courseid for part: $part response: $id and symb: $symb"); + $Apache::lonhomework::results{"resource.$part.$id.submission"} = $response; + } + if ($error ne '') { + &Apache::lonnet::logthis("Stringresponse grading error: $error for $sname:$sdomain in $courseid for part: $part response: $id and symb: $symb"); + } + } + } + &Apache::lonxml::debug('msgs are'.join(':',@msgs)); + my ($awards)=split(/:/,$result); + my (@awards) = split(/,/,$awards); + ($ad,$msg) = + &Apache::inputtags::finalizeawards(\@awards,\@msgs); + push(@final_awards,$ad); + push(@final_msgs,$msg); + push(@names,$name); + &Apache::lonxml::debug("\n
result:$result:$Apache::lonxml::curdepth
\n"); + } + ($ad, $msg, my $name) = + &Apache::inputtags::finalizeawards(\@final_awards, + \@final_msgs, + \@names,1); + if (keys(%ansstring) > 0) { + $Apache::lonhomework::results{"resource.$part.$id.answerstring"} = &Apache::lonnet::hash2str(%ansstring); + } + } + if (($ad eq 'INCORRECT' || $ad eq 'APPROX_ANS' || + $ad eq 'EXACT_ANS')) { + if ($Apache::lonhomework::type eq 'survey') { + $ad='SUBMITTED'; + } elsif ($Apache::lonhomework::type eq 'surveycred') { + $ad='SUBMITTED_CREDIT'; + } elsif ($Apache::lonhomework::type eq 'anonsurvey') { + $ad='ANONYMOUS'; + } elsif ($Apache::lonhomework::type eq 'anonsurveycred') { + $ad='ANONYMOUS_CREDIT'; + } + } + unless (($env{'request.state'} eq 'construct') || + ($Apache::lonhomework::type eq 'randomizetry')) { + if (($ad eq 'INCORRECT' || $ad eq 'APPROX_ANS' || $ad eq 'EXACT_ANS')) { + if ($previous{'used'}) { + if ($ad ne $previous{'award'}) { + if (($previous{'award'} eq 'INCORRECT' || + $previous{'award'} eq 'APPROX_ANS' || + $previous{'award'} eq 'EXACT_ANS')) { + &stringresponse_gradechange($part,$id,\%previous, + 'cs',$response,$ad,$type); + } + } + } elsif ($previous{'usedci'}) { + if ($ad ne $previous{'awardci'}) { + if (($previous{'awardci'} eq 'INCORRECT' || + $previous{'awardci'} eq 'APPROX_ANS' || + $previous{'awardci'} eq 'EXACT_ANS')) { + &stringresponse_gradechange($part,$id,\%previous, + 'ci',$response,$ad,$type); + } + } + } + } + } + &Apache::response::handle_previous(\%previous,$ad); + $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=$ad; + $Apache::lonhomework::results{"resource.$part.$id.awardmsg"}=$msg; + } + } + } elsif ($target eq 'answer' || $target eq 'analyze') { + &add_in_tag_answer($parstack,$safeeval); + if ($target eq 'analyze') { + push (@{ $Apache::lonhomework::analyze{"parts"} },"$part.$id"); + $Apache::lonhomework::analyze{"$part.$id.type"} = 'stringresponse'; + &Apache::response::check_if_computed($token,$parstack,$safeeval, + 'answer'); + } + &Apache::response::setup_params('stringresponse',$safeeval); + if ($target eq 'answer') { + $result.=&Apache::response::answer_header('stringresponse'); + } + foreach my $name (keys(%answer)) { + my @answers = @{ $answer{$name}{'answers'} }; + for (my $i=0;$i<=$#answers;$i++) { + my $answer_part = $answers[$i]; + foreach my $element (@{$answer_part}) { + if ($target eq 'answer') { + $result.=&Apache::response::answer_part('stringresponse', + $element); + if ($env{'form.grade_retrieveanswers'}) { + $env{'form.grade_answers.resource.'.$part.'.'.$id} = $element; + } + } elsif ($target eq 'analyze') { + push (@{ $Apache::lonhomework::analyze{"$part.$id.answer"}{$name}[$i] }, + $element); + } + } + if ($target eq 'answer' && $type eq 're') { + $result.=&Apache::response::answer_part('stringresponse', + $answerdisplay); + } + } + } + my $string='Case Insensitive'; + if ($type eq 'mc') { + $string='Multiple Choice'; + } elsif ($type eq 'cs') { + $string='Case Sensitive'; + } elsif ($type eq 'ci') { + $string='Case Insensitive'; + } elsif ($type eq 're') { + $string='Regular Expression'; + } + if ($target eq 'answer') { + if ($env{'form.answer_output_mode'} eq 'tex') { + $result.=&Apache::response::answer_part('stringresponse', + "$string"); + } else { + $result.=&Apache::response::answer_part('stringresponse', + "$string"); + } + } elsif ($target eq 'analyze') { + push (@{$Apache::lonhomework::analyze{"$part.$id.str_type"}}, + $type); + } + if ($target eq 'answer') { + $result.=&Apache::response::answer_footer('stringresponse'); + } + } elsif ($target eq 'edit') { + $result.=''.&Apache::edit::end_table; + } elsif ($target eq 'web' || $target eq 'tex') { + &Apache::response::setup_prior_tries_hash(\&format_prior_response_string); + } + if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' || + $target eq 'tex' || $target eq 'analyze') { + &Apache::lonxml::increment_counter(&Apache::response::repetition(), + "$part.$id"); + if ($target eq 'analyze') { + &Apache::lonhomework::set_bubble_lines(); + } + } + &Apache::response::end_response; + return $result; } sub start_formularesponse { - my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; - my $result; - if ($target eq 'meta') { - $result=&Apache::response::meta_package_write('formularesponse'); - } else { - $result.=&start_numericalresponse(@_); - } - return $result; + my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; + my $result; + if ($target eq 'meta') { + &Apache::response::start_response($parstack,$safeeval); + $result=&Apache::response::meta_package_write('formularesponse'); + &Apache::response::end_response(); + } else { + $result.=&start_numericalresponse(@_); + } + return $result; } sub end_formularesponse { - return end_numericalresponse(@_); + return end_numericalresponse(@_); } 1; __END__ - +