Annotation of loncom/homework/caparesponse/caparesponse.pm, revision 1.214

1.3       albertel    1: # The LearningOnline Network with CAPA
                      2: # caparesponse definition
1.47      albertel    3: #
1.214   ! albertel    4: # $Id: caparesponse.pm,v 1.213 2007/04/26 23:15:43 albertel Exp $
1.47      albertel    5: #
                      6: # Copyright Michigan State University Board of Trustees
                      7: #
                      8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
                      9: #
                     10: # LON-CAPA is free software; you can redistribute it and/or modify
                     11: # it under the terms of the GNU General Public License as published by
                     12: # the Free Software Foundation; either version 2 of the License, or
                     13: # (at your option) any later version.
                     14: #
                     15: # LON-CAPA is distributed in the hope that it will be useful,
                     16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
                     17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
                     18: # GNU General Public License for more details.
                     19: #
                     20: # You should have received a copy of the GNU General Public License
                     21: # along with LON-CAPA; if not, write to the Free Software
                     22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
                     23: #
                     24: # /home/httpd/html/adm/gpl.txt
                     25: #
                     26: # http://www.lon-capa.org/
                     27: #
1.3       albertel   28: 
                     29: package Apache::caparesponse;
                     30: use strict;
1.4       albertel   31: use capa;
1.190     albertel   32: use Safe::Hole;
                     33: use Apache::lonmaxima();
1.129     www        34: use Apache::lonlocal;
1.166     albertel   35: use Apache::lonnet;
1.202     www        36: use Apache::response();
1.194     albertel   37: use Storable qw(dclone);
1.3       albertel   38: 
1.50      harris41   39: BEGIN {
1.194     albertel   40:     &Apache::lonxml::register('Apache::caparesponse',('numericalresponse','stringresponse','formularesponse'));
1.3       albertel   41: }
                     42: 
1.181     albertel   43: my %answer;
1.204     albertel   44: my @answers;
1.203     albertel   45: sub get_answer { return %answer; };
1.204     albertel   46: sub push_answer{ push(@answers,dclone(\%answer)); undef(%answer) }
                     47: sub pop_answer { %answer = %{pop(@answers)}; };
1.203     albertel   48: 
1.181     albertel   49: my $cur_name;
1.195     albertel   50: my $tag_internal_answer_name = 'INTERNAL';
                     51: 
1.181     albertel   52: sub start_answer {
                     53:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
                     54:     my $result;
                     55:     $cur_name = &Apache::lonxml::get_param('name',$parstack,$safeeval);
                     56:     if ($cur_name =~ /^\s*$/) { $cur_name = $Apache::lonxml::curdepth; }
                     57:     my $type = &Apache::lonxml::get_param('type',$parstack,$safeeval);
                     58:     if (!defined($type) && $tagstack->[-2] eq 'answergroup') {
                     59: 	$type = &Apache::lonxml::get_param('type',$parstack,$safeeval,-2);
                     60:     }
                     61:     if (!defined($type)) { $type = 'ordered' };
                     62:     $answer{$cur_name}= { 'type' => $type,
                     63: 			  'answers' => [] };
1.208     albertel   64:     if ($target eq 'edit') {
                     65:   	$result.=&Apache::edit::tag_start($target,$token);
                     66: 	$result.=&Apache::edit::text_arg('Name:','name',$token);
                     67: 	$result.=&Apache::edit::select_arg('Type:','type',
                     68: 					   [['ordered',  'Ordered'  ],
                     69: 					    ['unordered','Unordered'],],
                     70: 					   $token);
                     71: 	$result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
                     72:     } elsif ($target eq 'modified') {
                     73: 	my $constructtag = &Apache::edit::get_new_args($token,$parstack,
                     74: 						       $safeeval,'name',
                     75: 						       'type');
                     76: 	if ($constructtag) {
                     77: 	    $result = &Apache::edit::rebuild_tag($token);
                     78: 	    $result.= &Apache::edit::handle_insert();
                     79: 	}
                     80:     }
1.181     albertel   81:     return $result;
                     82: }
                     83: 
                     84: sub end_answer {
                     85:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
                     86:     my $result;
1.208     albertel   87:     if ($target eq 'edit') {
                     88: 	$result .= &Apache::edit::tag_end();
                     89:     }
                     90: 
1.181     albertel   91:     undef($cur_name);
                     92:     return $result;
                     93: }
                     94: 
1.208     albertel   95: sub insert_answer {
                     96:     return '
                     97:         <answer>
                     98:             <value></value>
                     99:         </answer>';
                    100: }
                    101: 
1.181     albertel  102: sub start_answergroup {
                    103:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
                    104:     my $result;
1.208     albertel  105:     if ($target eq 'edit') {
                    106:   	$result.=&Apache::edit::tag_start($target,$token);
                    107: 	$result.=&Apache::edit::select_arg('Type:','type',
                    108: 					   [['ordered',  'Ordered'  ],
                    109: 					    ['unordered','Unordered'],],
                    110: 					   $token);
                    111: 	$result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
                    112:     } elsif ($target eq 'modified') {
                    113: 	my $constructtag = &Apache::edit::get_new_args($token,$parstack,
                    114: 						       $safeeval,'name',
                    115: 						       'type');
                    116: 	if ($constructtag) {
                    117: 	    $result = &Apache::edit::rebuild_tag($token);
                    118: 	    $result.= &Apache::edit::handle_insert();
                    119: 	}
                    120:     }
1.181     albertel  121:     return $result;
                    122: }
                    123: 
                    124: sub end_answergroup {
                    125:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
                    126:     my $result;
1.194     albertel  127:     if ($target eq 'web') {
                    128:     	if (  &Apache::response::show_answer() ) {  
                    129: 	    my $partid = $Apache::inputtags::part;
                    130: 	    my $id = $Apache::inputtags::response[-1];
                    131: 	    &set_answertext($Apache::lonhomework::history{"resource.$partid.$id.answername"},
                    132: 			    $target,$token,$tagstack,$parstack,$parser,
                    133: 			    $safeeval,-2);
                    134: 	}
1.208     albertel  135:     } elsif ($target eq 'edit') {
                    136: 	$result .= &Apache::edit::tag_end();
1.194     albertel  137:     }
1.181     albertel  138:     return $result;
                    139: }
                    140: 
1.208     albertel  141: sub insert_answergroup {
                    142:     return '
                    143:     <answergroup>
                    144:         <answer>
                    145:             <value></value>
                    146:         </answer>
                    147:     </answergroup>';
                    148: }
                    149: 
1.181     albertel  150: sub start_value {
1.182     albertel  151:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.181     albertel  152:     my $result;
                    153:     if ( $target eq 'web' || $target eq 'tex' ||
                    154: 	 $target eq 'grade' || $target eq 'webgrade' ||
                    155: 	 $target eq 'answer' || $target eq 'analyze' ) {
1.182     albertel  156: 	my $bodytext = &Apache::lonxml::get_all_text("/value",$parser,$style);
1.181     albertel  157: 	$bodytext = &Apache::run::evaluate($bodytext,$safeeval,
                    158: 					   $$parstack[-1]);
1.195     albertel  159: 	
                    160: 	push(@{ $answer{$cur_name}{'answers'} },[$bodytext]);
                    161: 	
1.208     albertel  162:     } elsif ($target eq 'edit') {
                    163:   	$result.=&Apache::edit::tag_start($target,$token);
                    164: 	my $bodytext = &Apache::lonxml::get_all_text("/value",$parser,$style);
                    165: 	$result.=&Apache::edit::editline($token->[1],$bodytext,undef,40).
                    166: 	    &Apache::edit::end_row();
                    167:     } elsif ($target eq 'modified') {
                    168: 	$result=$token->[4].&Apache::edit::modifiedfield('/value',$parser);
1.181     albertel  169:     }
                    170:     return $result;
                    171: }
                    172: 
                    173: sub end_value {
                    174:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
                    175:     my $result;
1.208     albertel  176:     if ($target eq 'edit') {
                    177: 	$result = &Apache::edit::end_table();
                    178:     }
1.181     albertel  179:     return $result;
                    180: }
                    181: 
1.208     albertel  182: sub insert_value {
                    183:     return '
                    184:             <value></value>';
                    185: }
                    186: 
1.195     albertel  187: sub start_vector {
                    188:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                    189:     my $result;
                    190:     if ( $target eq 'web' || $target eq 'tex' ||
                    191: 	 $target eq 'grade' || $target eq 'webgrade' ||
                    192: 	 $target eq 'answer' || $target eq 'analyze' ) {
                    193: 	my $bodytext = &Apache::lonxml::get_all_text("/vector",$parser,$style);
                    194: 	my @values = &Apache::run::run($bodytext,$safeeval,$$parstack[-1]);
                    195: 	if (@values == 1) {
                    196: 	    @values = split(',',$values[0]);
                    197: 	}
                    198: 	push(@{ $answer{$cur_name}{'answers'} },\@values);
1.208     albertel  199:     } elsif ($target eq 'edit') {
                    200:   	$result.=&Apache::edit::tag_start($target,$token);
                    201: 	my $bodytext = &Apache::lonxml::get_all_text("/vector",$parser,$style);
                    202: 	$result.=&Apache::edit::editline($token->[1],$bodytext,undef,40).
                    203: 	    &Apache::edit::end_row();
                    204:     } elsif ($target eq 'modified') {
                    205: 	$result=$token->[4].&Apache::edit::modifiedfield('/vector',$parser);
1.195     albertel  206:     }
                    207:     return $result;
                    208: }
                    209: 
                    210: sub end_vector {
                    211:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
                    212:     my $result;
1.208     albertel  213:     if ($target eq 'edit') {
                    214: 	$result = &Apache::edit::end_table();
                    215:     }
1.195     albertel  216:     return $result;
                    217: }
                    218: 
1.208     albertel  219: sub insert_vector {
                    220:     return '
                    221:             <value></value>';
                    222: }
                    223: 
1.181     albertel  224: sub start_array {
1.182     albertel  225:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.181     albertel  226:     my $result;
                    227:     if ( $target eq 'web' || $target eq 'tex' ||
                    228: 	 $target eq 'grade' || $target eq 'webgrade' ||
                    229: 	 $target eq 'answer' || $target eq 'analyze' ) {
1.182     albertel  230: 	my $bodytext = &Apache::lonxml::get_all_text("/array",$parser,$style);
1.181     albertel  231: 	my @values = &Apache::run::evaluate($bodytext,$safeeval,
                    232: 					    $$parstack[-1]);
                    233: 	push(@{ $answer{$cur_name}{'answers'} },@values);
                    234:     }
                    235:     return $result;
                    236: }
                    237: 
                    238: sub end_array {
                    239:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
                    240:     my $result;
                    241:     return $result;
                    242: }
                    243: 
                    244: sub start_unit {
                    245:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
                    246:     my $result;
                    247:     return $result;
                    248: }
                    249: 
                    250: sub end_unit {
                    251:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
                    252:     my $result;
                    253:     return $result;
                    254: }
                    255: 
1.89      albertel  256: sub start_numericalresponse {
                    257:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.195     albertel  258:     &Apache::lonxml::register('Apache::caparesponse',
                    259: 			      ('answer','answergroup','value','array','unit',
                    260: 			       'vector'));
1.208     albertel  261:     push(@Apache::lonxml::namespace,'caparesponse');
1.89      albertel  262:     my $id = &Apache::response::start_response($parstack,$safeeval);
                    263:     my $result;
1.181     albertel  264:     undef(%answer);
                    265:     undef(%{$safeeval->varglob('LONCAPA::CAPAresponse_args')});
1.89      albertel  266:     if ($target eq 'edit') {
                    267: 	$result.=&Apache::edit::tag_start($target,$token);
                    268: 	$result.=&Apache::edit::text_arg('Answer:','answer',$token);
                    269: 	if ($token->[1] eq 'numericalresponse') {
1.122     albertel  270: 	    $result.=&Apache::edit::text_arg('Incorrect Answers:','incorrect',
1.149     www       271: 					     $token).
                    272: 		&Apache::loncommon::help_open_topic('numerical_wrong_answers');
1.89      albertel  273: 	    $result.=&Apache::edit::text_arg('Unit:','unit',$token,5).
                    274: 		&Apache::loncommon::help_open_topic('Physical_Units');
                    275: 	    $result.=&Apache::edit::text_arg('Format:','format',$token,4).
                    276: 		&Apache::loncommon::help_open_topic('Numerical_Response_Format');
                    277: 	} elsif ($token->[1] eq 'formularesponse') {
                    278: 	    $result.=&Apache::edit::text_arg('Sample Points:','samples',
                    279: 					     $token,40).
                    280: 	      &Apache::loncommon::help_open_topic('Formula_Response_Sampling');
                    281: 	}
                    282: 	$result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
                    283:     } elsif ($target eq 'modified') {
                    284: 	my $constructtag;
                    285: 	if ($token->[1] eq 'numericalresponse') {
                    286: 	    $constructtag=&Apache::edit::get_new_args($token,$parstack,
                    287: 						      $safeeval,'answer',
1.156     albertel  288:  						      'incorrect','unit',
1.117     albertel  289: 						      'format');
1.89      albertel  290: 	} elsif ($token->[1] eq 'formularesponse') {
                    291: 	    $constructtag=&Apache::edit::get_new_args($token,$parstack,
                    292: 						      $safeeval,'answer',
                    293: 						      'samples');
                    294: 	}
                    295: 	if ($constructtag) {
                    296: 	    $result = &Apache::edit::rebuild_tag($token);
                    297: 	    $result.=&Apache::edit::handle_insert();
1.22      albertel  298: 	}
1.89      albertel  299:     } elsif ($target eq 'meta') {
                    300: 	$result=&Apache::response::meta_package_write('numericalresponse');
                    301:     } elsif ($target eq 'answer' || $target eq 'grade') {
                    302: 	&Apache::response::reset_params();
1.96      albertel  303:     } elsif ($target eq 'web') {
                    304: 	my $partid = $Apache::inputtags::part;
                    305: 	my $hideunit=&Apache::lonnet::EXT('resource.'.$partid.'_'.$id.'.turnoffunit');
                    306: 	&Apache::lonxml::debug("Got unit $hideunit for $partid $id");
                    307: 	#no way to enter units, with radio buttons
                    308: 	if (lc($hideunit) eq "yes") {
                    309: 	    my $unit=&Apache::lonxml::get_param_var('unit',$parstack,
                    310: 						    $safeeval);
                    311: 	    if ($unit =~ /\S/) { $result.=" (in $unit) "; }
                    312: 	}
1.146     albertel  313: 	if (  &Apache::response::show_answer() ) {
1.195     albertel  314: 	    &set_answertext($tag_internal_answer_name,$target,$token,$tagstack,
                    315: 			    $parstack,$parser,$safeeval,-1);
1.194     albertel  316: 	}
                    317:     }
                    318:     return $result;
                    319: }
                    320: 
                    321: sub set_answertext {
                    322:     my ($name,$target,$token,$tagstack,$parstack,$parser,$safeeval,
                    323: 	$response_level) = @_;
                    324:     &add_in_tag_answer($parstack,$safeeval,$response_level);
                    325: 
1.206     albertel  326:     if ($name eq '' || !ref($answer{$name})) {
                    327: 	if (ref($answer{$tag_internal_answer_name})) {
                    328: 	    $name = $tag_internal_answer_name;
                    329: 	} else {
                    330: 	    $name = (sort(keys(%answer)))[0];
                    331: 	}
                    332:     }
1.194     albertel  333:     return if ($name eq '' || !ref($answer{$name}));
                    334: 
                    335:     my (@formats)=&Apache::lonxml::get_param_var('format',$parstack,
                    336: 						 $safeeval,$response_level);
                    337:     my $unit=&Apache::lonxml::get_param_var('unit',$parstack,$safeeval,
                    338: 					    $response_level);
                    339: 
                    340:     &Apache::lonxml::debug("answer looks to be $name");
1.195     albertel  341:     my @answertxt;
1.194     albertel  342:     for (my $i=0; $i < scalar(@{$answer{$name}{'answers'}}); $i++) {
1.195     albertel  343: 	my $answertxt;
1.194     albertel  344: 	my $answer=$answer{$name}{'answers'}[$i];
1.195     albertel  345: 	foreach my $element (@$answer) {
                    346: 	    if ( scalar(@$tagstack)
                    347: 		 && $tagstack->[$response_level] ne 'numericalresponse') {
                    348: 		$answertxt.=$element.',';
1.194     albertel  349: 	    } else {
1.195     albertel  350: 		my $format;
                    351: 		if ($#formats > 0) {
                    352: 		    $format=$formats[$i];
                    353: 		} else {
                    354: 		    $format=$formats[0];
                    355: 		}
                    356: 		if ($unit=~/\$/) { $format="\$".$format; $unit=~s/\$//g; }
                    357: 		if ($unit=~/\,/) { $format="\,".$format; $unit=~s/\,//g; }
                    358: 		my $formatted=&format_number($element,$format,$target,
                    359: 					     $safeeval);
                    360: 		$answertxt.=' '.$formatted.',';
1.146     albertel  361: 	    }
1.195     albertel  362: 	    
                    363: 	}
                    364: 	chop($answertxt);
                    365: 	if ($target eq 'web') {
                    366: 	    $answertxt.=" $unit ";
1.146     albertel  367: 	}
1.195     albertel  368: 
                    369: 	push(@answertxt,$answertxt)
1.16      albertel  370:     }
1.194     albertel  371: 	
                    372:     my $id = $Apache::inputtags::response[-1];
1.195     albertel  373:     $Apache::inputtags::answertxt{$id}=\@answertxt;
1.21      albertel  374: }
                    375: 
1.195     albertel  376: sub setup_capa_args {
                    377:     my ($safeeval,$parstack,$args,$response) = @_;
1.167     albertel  378:     my $args_ref= \%{$safeeval->varglob('LONCAPA::CAPAresponse_args')};
1.195     albertel  379:     undef(%{ $args_ref });
                    380:  
                    381:     foreach my $arg (@{$args}) {
1.167     albertel  382: 	$$args_ref{$arg}=
                    383: 	    &Apache::lonxml::get_param($arg,$parstack,$safeeval);
                    384:     }
                    385:     foreach my $key (keys(%Apache::inputtags::params)) {
                    386: 	$$args_ref{$key}=$Apache::inputtags::params{$key};
                    387:     }
1.195     albertel  388:     &setup_capa_response($args_ref,$response);
                    389:     return $args_ref;
                    390: }
                    391: 
                    392: sub setup_capa_response {
                    393:     my ($args_ref,$response) = @_;   
                    394: 
                    395:     use Data::Dumper;
                    396:     &Apache::lonxml::debug("response dump is ".&Dumper($response));
1.167     albertel  397:     
1.195     albertel  398:     if (ref($response)) {
                    399: 	$$args_ref{'response'}=dclone($response);
                    400:     } else {
                    401: 	$$args_ref{'response'}=dclone([$response]);
                    402:     }
                    403: }
                    404: 
                    405: sub check_submission {
                    406:     my ($response,$partid,$id,$tag,$parstack,$safeeval,$ignore_sig)=@_;
                    407:     my @args = ('type','tol','sig','format','unit','calc','samples');
                    408:     my $args_ref = &setup_capa_args($safeeval,$parstack,\@args,$response);
                    409: 
                    410:     my $hideunit=
                    411: 	&Apache::lonnet::EXT('resource.'.$partid.'_'.$id.'.turnoffunit');
                    412:         #no way to enter units, with radio buttons
1.167     albertel  413:     if ($Apache::lonhomework::type eq 'exam' ||
                    414: 	lc($hideunit) eq "yes") {
                    415: 	delete($$args_ref{'unit'});
                    416:     }
                    417:     #sig fig don't make much sense either
                    418:     if (($Apache::lonhomework::type eq 'exam' ||
1.171     albertel  419: 	 &Apache::response::submitted('scantron') ||
                    420: 	 $ignore_sig) &&
1.167     albertel  421: 	$tag eq 'numericalresponse') {
                    422: 	delete($$args_ref{'sig'});
                    423:     }
                    424:     
                    425:     if ($tag eq 'formularesponse') {
1.199     www       426: 	if ($$args_ref{'samples'}) {
1.191     www       427: 	    $$args_ref{'type'}='fml';
1.199     www       428: 	} else {
                    429: 	    $$args_ref{'type'}='math';
                    430: 	}
1.167     albertel  431:     } elsif ($tag eq 'numericalresponse') {
                    432: 	$$args_ref{'type'}='float';
                    433:     }
1.194     albertel  434:     
                    435:     &add_in_tag_answer($parstack,$safeeval);
                    436: 
1.195     albertel  437:     my (@final_awards,@final_msgs,@names);
1.181     albertel  438:     foreach my $name (keys(%answer)) {
                    439: 	&Apache::lonxml::debug(" doing $name with ".join(':',@{ $answer{$name}{'answers'} }));
1.194     albertel  440: 	
                    441: 	${$safeeval->varglob('LONCAPA::CAPAresponse_answer')}=dclone($answer{$name});
1.195     albertel  442: 	&setup_capa_response($args_ref,$response);
                    443: 	use Time::HiRes;
                    444: 	my $t0 = [Time::HiRes::gettimeofday()];
1.181     albertel  445: 	my ($result,@msgs) = 
                    446: 	    &Apache::run::run("&caparesponse_check_list()",$safeeval);
1.195     albertel  447: 	&Apache::lonxml::debug("checking $name $result with $response took ".&Time::HiRes::tv_interval($t0));
1.181     albertel  448: 	&Apache::lonxml::debug('msgs are '.join(':',@msgs));
                    449: 	my ($awards)=split(/:/,$result);
                    450: 	my @awards= split(/,/,$awards);
                    451: 	my ($ad, $msg) = &Apache::inputtags::finalizeawards(\@awards,\@msgs);
                    452: 	push(@final_awards,$ad);
                    453: 	push(@final_msgs,$msg);
                    454: 	push(@names,$name);
                    455:     }
                    456:     my ($ad, $msg, $name) = &Apache::inputtags::finalizeawards(\@final_awards,
                    457: 							       \@final_msgs,
                    458: 							       \@names,1);
1.194     albertel  459:     &Apache::lonxml::debug(" name of picked award is $name from ".join(', ',@names));
                    460:     return($ad,$msg, $name);
                    461: }
                    462: 
                    463: sub add_in_tag_answer {
                    464:     my ($parstack,$safeeval,$response_level) = @_;
                    465:     my @answer=&Apache::lonxml::get_param_var('answer',$parstack,$safeeval,
                    466: 					      $response_level);
                    467:     &Apache::lonxml::debug('answer is'.join(':',@answer));
1.213     albertel  468:     if (@answer && $answer[0] =~ /\S/) {
1.195     albertel  469: 	$answer{$tag_internal_answer_name}= {'type' => 'ordered',
                    470: 					     'answers' => [\@answer] };
1.194     albertel  471:     }
1.167     albertel  472: }
                    473: 
1.202     www       474: sub capa_formula_fix {
                    475:    my ($expression)=@_;
                    476:    return &Apache::response::implicit_multiplication($expression);
                    477: }
                    478: 
1.89      albertel  479: sub end_numericalresponse {
                    480:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.208     albertel  481: 
                    482:     &Apache::lonxml::deregister('Apache::caparesponse',
                    483: 			      ('answer','answergroup','value','array','unit',
                    484: 			       'vector'));
                    485:     pop(@Apache::lonxml::namespace);
                    486: 
1.90      albertel  487:     my $increment=1;
1.89      albertel  488:     my $result = '';
                    489:     if (!$Apache::lonxml::default_homework_loaded) {
                    490: 	&Apache::lonxml::default_homework_load($safeeval);
1.34      albertel  491:     }
1.167     albertel  492:     my $partid = $Apache::inputtags::part;
                    493:     my $id = $Apache::inputtags::response[-1];
1.125     albertel  494:     my $tag;
1.190     albertel  495:     my $safehole = new Safe::Hole;
1.168     albertel  496:     $safeeval->share_from('capa',['&caparesponse_capa_check_answer']);
1.190     albertel  497: 
1.125     albertel  498:     if (scalar(@$tagstack)) { $tag=$$tagstack[-1]; }
1.162     albertel  499:     if ( $target eq 'grade' && &Apache::response::submitted() ) {
1.140     albertel  500: 	&Apache::response::setup_params($tag,$safeeval);
1.95      albertel  501: 	if ($Apache::lonhomework::type eq 'exam' && 
1.190     albertel  502: 	    (($tag eq 'formularesponse') || ($tag eq 'mathresponse'))) {
1.95      albertel  503: 	    $increment=&Apache::response::scored_response($partid,$id);
                    504: 	} else {
                    505: 	    my $response = &Apache::response::getresponse();
                    506: 	    if ( $response =~ /[^\s]/) {
                    507: 		my %previous = &Apache::response::check_for_previous($response,$partid,$id);
                    508: 		&Apache::lonxml::debug("submitted a $response<br>\n");
                    509: 		&Apache::lonxml::debug($$parstack[-1] . "\n<br>");
                    510: 		
1.162     albertel  511: 		if ( &Apache::response::submitted('scantron')) {
1.207     albertel  512: 		    &add_in_tag_answer($parstack,$safeeval);
1.184     albertel  513: 		    my ($values,$display)=&make_numerical_bubbles($partid,$id,
                    514: 						  $target,$parstack,$safeeval);
1.158     albertel  515: 		    $response=$values->[$response];
1.95      albertel  516: 		}
1.115     albertel  517: 		$Apache::lonhomework::results{"resource.$partid.$id.submission"}=$response;
1.194     albertel  518: 		my ($ad,$msg,$name)=&check_submission($response,$partid,$id,
                    519: 						      $tag,$parstack,
                    520: 						      $safeeval);
1.167     albertel  521: 
1.142     albertel  522: 		&Apache::lonxml::debug('ad is'.$ad);
                    523: 		if ($ad eq 'SIG_FAIL') {
                    524: 		    my ($sig_u,$sig_l)=
                    525: 			&get_sigrange($Apache::inputtags::params{'sig'});
                    526: 		    $msg=join(':',$msg,$sig_l,$sig_u);
                    527: 		    &Apache::lonxml::debug("sigs bad $sig_u $sig_l ".
                    528: 					   $Apache::inputtags::params{'sig'});
                    529: 		}
1.95      albertel  530: 		&Apache::lonxml::debug("\n<br>result:$result:$Apache::lonxml::curdepth<br>\n");
1.163     albertel  531: 		if ($Apache::lonhomework::type eq 'survey' &&
                    532: 		    ($ad eq 'INCORRECT' || $ad eq 'APPROX_ANS' ||
                    533: 		     $ad eq 'EXACT_ANS')) {
                    534: 		    $ad='SUBMITTED';
                    535: 		}
1.95      albertel  536: 		&Apache::response::handle_previous(\%previous,$ad);
                    537: 		$Apache::lonhomework::results{"resource.$partid.$id.awarddetail"}=$ad;
1.142     albertel  538: 		$Apache::lonhomework::results{"resource.$partid.$id.awardmsg"}=$msg;
1.194     albertel  539: 		$Apache::lonhomework::results{"resource.$partid.$id.answername"}=$name;
1.95      albertel  540: 		$result='';
1.90      albertel  541: 	    }
1.89      albertel  542: 	}
                    543:     } elsif ($target eq 'web' || $target eq 'tex') {
1.196     albertel  544: 	&check_for_answer_errors($parstack,$safeeval);
1.89      albertel  545: 	my $award = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
                    546: 	my $status = $Apache::inputtags::status['-1'];
                    547: 	if ($Apache::lonhomework::type eq 'exam') {
1.194     albertel  548: 	    # FIXME support multi dimensional numerical problems
                    549:             #       in exam bubbles
1.184     albertel  550: 	    my ($bubble_values,$bubble_display)=
                    551: 		&make_numerical_bubbles($partid,$id,$target,$parstack,
                    552: 					$safeeval);
                    553: 	    my $number_of_bubbles = scalar(@{ $bubble_values });
1.89      albertel  554: 	    my $unit=&Apache::lonxml::get_param_var('unit',$parstack,
                    555: 						    $safeeval);
                    556: 	    my @alphabet=('A'..'Z');
                    557: 	    if ($target eq 'web') {
1.125     albertel  558: 		if ($tag eq 'numericalresponse') {
1.89      albertel  559: 		    if ($unit=~/\S/) {$result.=' (in '.$unit.')<br /><br />';}
                    560: 		    $result.= '<table border="1"><tr>';
1.116     albertel  561: 		    my $previous=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.$id.submission"};
1.90      albertel  562: 		    for (my $ind=0;$ind<$number_of_bubbles;$ind++) {
1.116     albertel  563: 			my $checked='';
1.158     albertel  564: 			if ($previous eq $bubble_values->[$ind]) {
1.116     albertel  565: 			    $checked=" checked='on' ";
                    566: 			}
1.90      albertel  567: 			$result.='<td><input type="radio" name="HWVAL_'.$id.
1.158     albertel  568: 			    '" value="'.$bubble_values->[$ind].'" '.$checked
1.116     albertel  569: 			    .' /><b>'.$alphabet[$ind].'</b>: '.
1.158     albertel  570: 			    $bubble_display->[$ind].'</td>';
1.89      albertel  571: 		    }
                    572: 		    $result.='</tr></table>';
                    573: 		}
                    574: 	    } elsif ($target eq 'tex') {
1.107     sakharuk  575: 		if ((defined $unit) and ($unit=~/\S/) and ($Apache::lonhomework::type eq 'exam')) {
1.89      albertel  576: 		    $result.=' \textit{(in} \verb|'.$unit.'|\textit{)} ';
                    577: 		}
1.125     albertel  578: 		if ($tag eq 'numericalresponse') {
1.90      albertel  579: 		    my ($celllength,$number_of_tables,@table_range)=
1.159     albertel  580: 			&get_table_sizes($number_of_bubbles,$bubble_display);
1.89      albertel  581: 		    my $j=0;
                    582: 		    my $cou=0;
                    583: 		    $result.='\vskip -1 mm \noindent \begin{enumerate}\item[\textbf{'.$Apache::lonxml::counter.'}.]';
                    584: 		    for (my $i=0;$i<$number_of_tables;$i++) {
1.144     sakharuk  585: 			$result.='\vskip -1 mm \noindent \setlength{\tabcolsep}{2 mm}\begin{tabular}{';
1.90      albertel  586: 			for (my $ind=0;$ind<$table_range[$j];$ind++) {
1.128     sakharuk  587: 			    $result.='p{3 mm}p{'.$celllength.' mm}';
1.89      albertel  588: 			}
                    589: 			$result.='}';
1.90      albertel  590: 			for (my $ind=$cou;$ind<$cou+$table_range[$j];$ind++) {
1.159     albertel  591: 			    $result.='\hskip -4 mm {\small \textbf{'.$alphabet[$ind].'}}$\bigcirc$ & \hskip -3 mm {\small '.$bubble_display->[$ind].'} ';
1.89      albertel  592: 			    if ($ind != $cou+$table_range[$j]-1) {$result.=' & ';}
                    593: 			}
                    594: 			$cou += $table_range[$j];
                    595: 			$j++;
                    596: 			$result.='\\\\\end{tabular}\vskip 0 mm ';
                    597: 		    }
                    598: 		    $result.='\end{enumerate}';
                    599: 		} else {
1.188     albertel  600: 		    $increment = &Apache::response::repetition();
1.89      albertel  601: 		}
                    602: 	    }
                    603: 	}
1.212     albertel  604: 	&Apache::response::setup_prior_tries_hash(\&format_prior_response_numerical);
1.89      albertel  605:     } elsif ($target eq 'edit') {
                    606: 	$result.='</td></tr>'.&Apache::edit::end_table;
                    607:     } elsif ($target eq 'answer' || $target eq 'analyze') {
1.167     albertel  608: 	my $part_id="$partid.$id";
1.89      albertel  609: 	if ($target eq 'analyze') {
                    610: 	    push (@{ $Apache::lonhomework::analyze{"parts"} },$part_id);
1.125     albertel  611: 	    $Apache::lonhomework::analyze{"$part_id.type"} = $tag;
1.117     albertel  612: 	    my (@incorrect)=&Apache::lonxml::get_param_var('incorrect',$parstack,$safeeval);
1.161     albertel  613: 	    if ($#incorrect eq 0) { @incorrect=(split(/,/,$incorrect[0])); }
1.117     albertel  614: 	    push (@{ $Apache::lonhomework::analyze{"$part_id.incorrect"} }, @incorrect);
1.154     albertel  615: 	    &Apache::response::check_if_computed($token,$parstack,
                    616: 						 $safeeval,'answer');
1.89      albertel  617: 	}
1.125     albertel  618: 	if (scalar(@$tagstack)) {
1.140     albertel  619: 	    &Apache::response::setup_params($tag,$safeeval);
1.125     albertel  620: 	}
1.194     albertel  621: 	&add_in_tag_answer($parstack,$safeeval);
1.58      sakharuk  622: 	my (@formats)=&Apache::lonxml::get_param_var('format',$parstack,$safeeval);
1.194     albertel  623: 
1.58      sakharuk  624: 	my $unit=&Apache::lonxml::get_param_var('unit',$parstack,$safeeval);
1.89      albertel  625: 	
                    626: 	if ($target eq 'answer') {
1.195     albertel  627: 	    $result.=&Apache::response::answer_header($tag,undef,
                    628: 						      scalar(keys(%answer)));
1.185     albertel  629: 	    if ($tag eq 'numericalresponse'
                    630: 		&& $Apache::lonhomework::type eq 'exam') {
1.184     albertel  631: 		my ($bubble_values,undef,$correct) = &make_numerical_bubbles($partid,
                    632: 					     $id,$target,$parstack,$safeeval);
                    633: 		$result.=&Apache::response::answer_part($tag,$correct);
                    634: 	    }
1.89      albertel  635: 	}
1.194     albertel  636: 	foreach my $name (sort(keys(%answer))) {
                    637: 	    my @answers = @{ $answer{$name}{'answers'} };
1.200     albertel  638: 	    if ($target eq 'analyze') {
                    639: 		foreach my $info ('answer','ans_high','ans_low','format') {
                    640: 		    $Apache::lonhomework::analyze{"$part_id.$info"}{$name}=[];
                    641: 		}
                    642: 	    }
1.194     albertel  643: 	    my ($sigline,$tolline);
1.195     albertel  644: 	    if ($name ne $tag_internal_answer_name 
                    645: 		|| scalar(keys(%answer)) > 1) {
                    646: 		$result.=&Apache::response::answer_part($tag,$name);
                    647: 	    }
1.194     albertel  648: 	    for(my $i=0;$i<=$#answers;$i++) {
                    649: 		my $ans=$answers[$i];
                    650: 		my $fmt=$formats[0];
                    651: 		if (@formats && $#formats) {$fmt=$formats[$i];}
                    652: 		my ($sighigh,$siglow);
                    653: 		if ($Apache::inputtags::params{'sig'}) {
                    654: 		    ($sighigh,$siglow)=&get_sigrange($Apache::inputtags::params{'sig'});
                    655: 		}
1.195     albertel  656: 		my @vector;
                    657: 		if (ref($ans)) {
                    658: 		    @vector = @{ $ans };
                    659: 		} else {
                    660: 		    @vector = ($ans);
1.194     albertel  661: 		}
1.200     albertel  662: 		my @all_answer_info;
                    663: 		foreach my $element (@vector) {
                    664: 		    my ($high,$low);
                    665: 		    if ($Apache::inputtags::params{'tol'}) {
                    666: 			($high,$low)=&get_tolrange($element,$Apache::inputtags::params{'tol'});
                    667: 		    }
                    668: 		    if ($target eq 'answer') {
1.195     albertel  669: 			if ($fmt && $tag eq 'numericalresponse') {
                    670: 			    $fmt=~s/e/E/g;
                    671: 			    if ($unit=~/\$/) { $fmt="\$".$fmt; $unit=~s/\$//g; }
                    672: 			    if ($unit=~/\,/) { $fmt="\,".$fmt; $unit=~s/\,//g; }
                    673: 			    $element = &format_number($element,$fmt,$target,$safeeval);
                    674: 			    #if ($high) {
                    675: 			    #    $high=&format_number($high,$fmt,$target,$safeeval);
                    676: 			    #    $low =&format_number($low,$fmt,$target,$safeeval);
                    677: 			    #}
                    678: 			}
                    679: 			if ($high && $tag eq 'numericalresponse') {
                    680: 			    $element.=' ['.$low.','.$high.']';
                    681: 			    $tolline .= "[$low, $high]";
                    682: 			}
                    683: 			if (defined($sighigh) && $tag eq 'numericalresponse') {
                    684: 			    if ($env{'form.answer_output_mode'} eq 'tex') {
                    685: 				$element.= " Sig $siglow - $sighigh";
                    686: 			    } else {
                    687: 				$element.= " Sig <i>$siglow - $sighigh</i>";
                    688: 				$sigline .= "[$siglow, $sighigh]";
                    689: 			    }
1.194     albertel  690: 			}
1.195     albertel  691: 			push(@all_answer_info,$element);
1.200     albertel  692: 			
                    693: 		    } elsif ($target eq 'analyze') {
                    694: 			push (@{ $Apache::lonhomework::analyze{"$part_id.answer"}{$name}[$i] }, $element);
                    695: 			if ($high) {
                    696: 			    push (@{ $Apache::lonhomework::analyze{"$part_id.ans_high"}{$name}[$i] }, $high);
                    697: 			    push (@{ $Apache::lonhomework::analyze{"$part_id.ans_low"}{$name}[$i] }, $low);
                    698: 			}
                    699: 			if ($fmt) {
                    700: 			    push (@{ $Apache::lonhomework::analyze{"$part_id.format"}{$name}[$i] }, $fmt);
                    701: 			}
1.194     albertel  702: 		    }
1.200     albertel  703: 		}
                    704: 		if ($target eq 'answer') {
1.195     albertel  705: 		    $result.= &Apache::response::answer_part($tag,join(', ',@all_answer_info));
1.194     albertel  706: 		}
                    707: 	    }
                    708: 
                    709: 	    my @fmt_ans;
                    710: 	    for(my $i=0;$i<=$#answers;$i++) {
                    711: 		my $ans=$answers[$i];
                    712: 		my $fmt=$formats[0];
                    713: 		if (@formats && $#formats) {$fmt=$formats[$i];}
1.195     albertel  714: 		foreach my $element (@$ans) {		    
                    715: 		    if ($fmt && $tag eq 'numericalresponse') {
                    716: 			$fmt=~s/e/E/g;
                    717: 			if ($unit=~/\$/) { $fmt="\$".$fmt; $unit=~s/\$//g; }
                    718: 			if ($unit=~/\,/) { $fmt="\,".$fmt; $unit=~s/\,//g; }
                    719: 			$element = &format_number($element,$fmt,$target,
                    720: 						  $safeeval);
                    721: 			if ($fmt=~/\$/ && $unit!~/\$/) { $element=~s/\$//; }
                    722: 		    }
1.194     albertel  723: 		}
1.195     albertel  724: 		push(@fmt_ans,join(',',@$ans));
1.194     albertel  725: 	    }
1.195     albertel  726: 	    my $response=\@fmt_ans;
                    727: 
1.194     albertel  728: 	    my $hideunit=&Apache::lonnet::EXT('resource.'.$partid.'_'.
                    729: 					      $id.'.turnoffunit');
                    730: 	    if ($unit ne ''  && 
                    731: 		! ($Apache::lonhomework::type eq 'exam' ||
                    732: 		   lc($hideunit) eq "yes") )  {
                    733: 		my $cleanunit=$unit;
                    734: 		$cleanunit=~s/\$\,//g;
1.195     albertel  735: 		foreach my $ans (@fmt_ans) {
                    736: 		    $ans.=" $cleanunit";
                    737: 		}
1.60      sakharuk  738: 	    }
1.194     albertel  739: 	    my ($ad,$msg)=&check_submission($response,$partid,$id,$tag,
                    740: 					    $parstack,$safeeval);
                    741: 	    if ($ad ne 'EXACT_ANS' && $ad ne 'APPROX_ANS') {
                    742: 		my $error;
                    743: 		if ($tag eq 'formularesponse') {
1.195     albertel  744: 		    $error=&mt('Computer\'s answer is incorrect ("[_1]").',join(', ',@$response));
1.194     albertel  745: 		} else {
                    746: 		    # answer failed check if it is sig figs that is failing
                    747: 		    my ($ad,$msg)=&check_submission($response,$partid,$id,
                    748: 						    $tag,$parstack,
                    749: 						    $safeeval,1);
                    750: 		    if ($sigline ne '') {
1.195     albertel  751: 			$error=&mt('Computer\'s answer is incorrect ("[_1]"). It is likely that the tolerance range [_2] or significant figures [_3] need to be adjusted.',join(', ',@$response),$tolline,$sigline);
1.98      sakharuk  752: 		    } else {
1.195     albertel  753: 			$error=&mt('Computer\'s answer is incorrect ("[_1]"). It is likely that the tolerance range [_2] needs to be adjusted.',join(', ',@$response),$tolline);
1.98      sakharuk  754: 		    }
                    755: 		}
1.194     albertel  756: 		if ($ad ne 'EXACT_ANS' && $ad ne 'APPROX_ANS') {
                    757: 		    &Apache::lonxml::error($error);
                    758: 		} else {
                    759: 		    &Apache::lonxml::warning($error);
1.165     albertel  760: 		}
1.79      sakharuk  761: 	    }
1.176     albertel  762: 
1.194     albertel  763: 	    if (defined($unit) and ($unit ne '') and
                    764: 		$tag eq 'numericalresponse') {
                    765: 		if ($target eq 'answer') {
                    766: 		    if ($env{'form.answer_output_mode'} eq 'tex') {
                    767: 			$result.=&Apache::response::answer_part($tag,
                    768: 								" Unit: $unit ");
                    769: 		    } else {
                    770: 			$result.=&Apache::response::answer_part($tag,
                    771: 								"Unit: <b>$unit</b>");
                    772: 		    }
                    773: 		} elsif ($target eq 'analyze') {
                    774: 		    push (@{ $Apache::lonhomework::analyze{"$part_id.unit"} }, $unit);
1.171     albertel  775: 		}
1.167     albertel  776: 	    }
1.194     albertel  777: 	    if ($tag eq 'formularesponse' && $target eq 'answer') {
                    778: 		my $samples=&Apache::lonxml::get_param('samples',$parstack,$safeeval);
                    779: 		$result.=&Apache::response::answer_part($tag,$samples);
1.89      albertel  780: 	    }
1.195     albertel  781: 	    $result.=&Apache::response::next_answer($tag,$name);
1.89      albertel  782: 	}
                    783: 	if ($target eq 'answer') {
1.125     albertel  784: 	    $result.=&Apache::response::answer_footer($tag);
1.89      albertel  785: 	}
1.69      sakharuk  786:     }
1.121     sakharuk  787:     if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' || 
1.90      albertel  788: 	$target eq 'tex' || $target eq 'analyze') {
                    789: 	&Apache::lonxml::increment_counter($increment);
                    790:     }
1.196     albertel  791:     &Apache::response::end_response();
1.89      albertel  792:     return $result;
1.90      albertel  793: }
                    794: 
1.212     albertel  795: sub format_prior_response_numerical {
                    796:     my ($mode,$answer) = @_;
1.213     albertel  797:     if (ref($answer)) {
                    798: 	my $result = '<table class="LC_prior_numerical"><tr>';
                    799: 	foreach my $element (@{ $answer }) {
                    800: 	    $result.= '<td><span class="LC_prior_numerical">'.
                    801: 		&HTML::Entities::encode($element,'"<>&').'</span></td>';
                    802: 	}
                    803: 	$result.='</tr></table>';
                    804: 	return $result;
                    805:     }
1.212     albertel  806:     return '<span class="LC_prior_numerical">'.
                    807: 	    &HTML::Entities::encode($answer,'"<>&').'</span>';
                    808: 
1.209     albertel  809: }
                    810: 
1.196     albertel  811: sub check_for_answer_errors {
                    812:     my ($parstack,$safeeval) = @_;
                    813:     &add_in_tag_answer($parstack,$safeeval);
                    814:     my %counts;
                    815:     foreach my $name (keys(%answer)) {
                    816: 	push(@{$counts{scalar(@{$answer{$name}{'answers'}})}},$name);
                    817:     }
                    818:     if (scalar(keys(%counts)) > 1) {
                    819: 	my $counts = join(' ',map {
                    820: 	    my $count = $_;
                    821: 	    &mt("Answers [_1] had [_2] components.",
                    822: 		'<tt>'.join(', ',@{$counts{$count}}).'</tt>',
                    823: 		$count);
                    824: 	} (sort(keys(%counts))));
                    825: 	&Apache::lonxml::error(&mt("All answers must have the same number of components. Varying numbers of answers were seen. ").$counts);
                    826:     }
                    827:     use Data::Dumper;
                    828:     &Apache::lonxml::debug("count dump is ".&Dumper(\%counts));
                    829:     my $expected_number_of_inputs = (keys(%counts))[0];
1.214   ! albertel  830:     if ( $expected_number_of_inputs > 0 
        !           831: 	 && $expected_number_of_inputs != scalar(@Apache::inputtags::inputlist)) {
1.196     albertel  832: 	&Apache::lonxml::error(&mt("Expected [_1] input fields, but there were only [_2] seen.", 
                    833: 				   $expected_number_of_inputs,
                    834: 				   scalar(@Apache::inputtags::inputlist)));
                    835:     }
                    836: }
                    837: 
1.90      albertel  838: sub get_table_sizes {
1.128     sakharuk  839:     my ($number_of_bubbles,$rbubble_values)=@_;
                    840:     my $scale=2; #mm for one digit
                    841:     my $cell_width=0;
                    842:     foreach my $member (@$rbubble_values) {
                    843: 	my $cell_width_real=0;
1.160     albertel  844: 	if ($member=~/(\+|-)?(\d*)\.?(\d*)\s*\$?\\times\s*10\^{(\+|-)?(\d+)}\$?/) {
1.138     sakharuk  845: 	    $cell_width_real=(length($2)+length($3)+length($5)+7)*$scale;
                    846: 	} elsif ($member=~/(\d*)\.?(\d*)(E|e)(\+|-)?(\d*)/) {
1.128     sakharuk  847: 	    $cell_width_real=(length($1)+length($2)+length($5)+9)*$scale;
1.138     sakharuk  848:         } elsif ($member=~/(\d*)\.(\d*)/) {
1.132     sakharuk  849: 	    $cell_width_real=(length($1)+length($2)+3)*$scale;
1.128     sakharuk  850: 	} else {
1.138     sakharuk  851: 	    $cell_width_real=(length($member)+1)*$scale*0.9;
1.128     sakharuk  852: 	}
                    853: 	if ($cell_width_real>$cell_width) {$cell_width=$cell_width_real;}
1.90      albertel  854:     }
1.132     sakharuk  855:     $cell_width+=8; 
1.130     sakharuk  856:     my $textwidth;
1.166     albertel  857:     if ($env{'form.textwidth'} ne '') {
                    858: 	$env{'form.textwidth'}=~/(\d*)\.?(\d*)/;
1.132     sakharuk  859: 	$textwidth=$1.'.'.$2;
1.130     sakharuk  860:     } else {
1.166     albertel  861: 	$env{'form.textwidth'}=~/(\d+)\.?(\d*)/;
1.132     sakharuk  862: 	$textwidth=$1.'.'.$2;
1.130     sakharuk  863:     }
1.128     sakharuk  864:     my $bubbles_per_line=int($textwidth/$cell_width);
1.151     sakharuk  865:     if ($bubbles_per_line > $number_of_bubbles) {
                    866: 	$bubbles_per_line=$number_of_bubbles;
                    867:     }elsif (($bubbles_per_line > $number_of_bubbles/2) && ($number_of_bubbles % 2==0)) {$bubbles_per_line=$number_of_bubbles/2;}
1.128     sakharuk  868:     my $number_of_tables = int($number_of_bubbles/$bubbles_per_line);
1.90      albertel  869:     my @table_range = ();
1.128     sakharuk  870:     for (my $i=0;$i<$number_of_tables;$i++) {push @table_range,$bubbles_per_line;}
                    871:     if ($number_of_bubbles % $bubbles_per_line) {
1.90      albertel  872: 	$number_of_tables++;
1.128     sakharuk  873: 	push @table_range,($number_of_bubbles % $bubbles_per_line);
1.90      albertel  874:     }
1.128     sakharuk  875:     $cell_width-=8;
1.136     sakharuk  876:     $cell_width=$cell_width*3/4;
1.128     sakharuk  877:     return ($cell_width,$number_of_tables,@table_range);
1.90      albertel  878: }
                    879: 
                    880: sub format_number {
1.153     albertel  881:     my ($number,$format,$target,$safeeval)=@_;
1.90      albertel  882:     my $ans;
1.153     albertel  883:     if ($format eq '') {
1.90      albertel  884: 	#What is the number? (integer,decimal,floating point)
1.187     albertel  885: 	if ($number=~/^(\d*\.?\d*)(E|e)[+\-]?(\d*)$/) {
1.113     sakharuk  886: 	    $format = '3e';
1.90      albertel  887: 	} elsif ($number=~/^(\d*)\.(\d*)$/) {
                    888: 	    $format = '4f';
                    889: 	} elsif ($number=~/^(\d*)$/) {
                    890: 	    $format = 'd';
                    891: 	}
                    892:     }
1.156     albertel  893:     if (!$Apache::lonxml::default_homework_loaded) {
                    894: 	&Apache::lonxml::default_homework_load($safeeval);
                    895:     }
1.153     albertel  896:     $ans=&Apache::run::run("&prettyprint(q\0$number\0,q\0$format\0,q\0$target\0)",$safeeval);
1.90      albertel  897:     return $ans;
                    898: }
                    899: 
                    900: sub make_numerical_bubbles {
1.184     albertel  901:     my ($part,$id,$target,$parstack,$safeeval) =@_;
                    902:     
                    903:     my $number_of_bubbles = 
                    904: 	&Apache::response::get_response_param($part.'_'.$id,'numbubbles',8);
                    905: 
                    906:     my ($format)=&Apache::lonxml::get_param_var('format',$parstack,$safeeval);
1.201     albertel  907:     my $name = (exists($answer{$tag_internal_answer_name}) 
                    908: 		? $tag_internal_answer_name
                    909: 		: (sort(keys(%answer)))[0]);
                    910: 
                    911:     if ( scalar(@{$answer{$name}{'answers'}}) > 1) {
                    912: 	&Apache::lonxml::error("Only answers with 1 component are supported in exam mode");
                    913:     }
                    914:     if (scalar(@{$answer{$name}{'answers'}[0]}) > 1) {
                    915: 	&Apache::lonxml::error("Vector answers are unsupported in exam mode.");
                    916:     }
                    917: 
                    918:     my $answer = $answer{$name}{'answers'}[0][0];
1.184     albertel  919:     my (@incorrect)=&Apache::lonxml::get_param_var('incorrect',$parstack,
                    920: 						   $safeeval);
                    921:     if ($#incorrect eq 0) { @incorrect=(split(/,/,$incorrect[0])); }
                    922:     
1.158     albertel  923:     my @bubble_values=();
1.184     albertel  924:     my @alphabet=('A'..'Z');
                    925: 
                    926:     &Apache::lonxml::debug("answer is $answer incorrect is @incorrect");
1.119     albertel  927:     my @oldseed=&Math::Random::random_get_seed();
1.184     albertel  928:     if (@incorrect) {
                    929: 	&Apache::lonxml::debug("inside ".(scalar(@incorrect)+1 gt $number_of_bubbles));
                    930: 	if (defined($incorrect[0]) &&
                    931: 	    scalar(@incorrect)+1 >= $number_of_bubbles) {
                    932: 	    &Apache::lonxml::debug("inside ".(scalar(@incorrect)+1).":$number_of_bubbles");
1.117     albertel  933: 	    &Apache::response::setrandomnumber();
1.184     albertel  934: 	    my @rand_inc=&Math::Random::random_permutation(@incorrect);
1.117     albertel  935: 	    @bubble_values=@rand_inc[0..($number_of_bubbles-2)];
                    936: 	    @bubble_values=sort {$a <=> $b} (@bubble_values,$answer);
1.184     albertel  937: 	    &Apache::lonxml::debug("Answer was :$answer: returning :".$#bubble_values.": which are :".join(':',@bubble_values));
1.119     albertel  938: 	    &Math::Random::random_set_seed(@oldseed);
1.184     albertel  939: 
                    940: 	    my $correct;
                    941: 	    for(my $i=0; $i<=$#bubble_values;$i++) {
                    942: 		if ($bubble_values[$i] eq $answer) {
                    943: 		    $correct = $alphabet[$i];
                    944: 		    last;
                    945: 		}
                    946: 	    }
                    947: 
1.134     albertel  948: 	    if (defined($format) && $format ne '') {
1.158     albertel  949: 		my @bubble_display;
1.137     albertel  950: 		foreach my $value (@bubble_values) {
1.158     albertel  951: 		    push(@bubble_display,
                    952: 			 &format_number($value,$format,$target,$safeeval));
1.134     albertel  953: 		}
1.184     albertel  954: 		return (\@bubble_values,\@bubble_display,$correct);
1.158     albertel  955: 	    } else {
1.184     albertel  956: 		return (\@bubble_values,\@bubble_values,$correct);
1.134     albertel  957: 	    }
1.117     albertel  958: 	}
1.184     albertel  959: 	if (defined($incorrect[0]) &&
                    960: 	    scalar(@incorrect)+1 < $number_of_bubbles) {
                    961: 	    &Apache::lonxml::warning("Not enough incorrect answers were specified in the incorrect array, ignoring the specified incorrect answers and instead generating them (".join(',',@incorrect).").");
1.127     albertel  962: 	}
1.117     albertel  963:     }
1.90      albertel  964:     my @factors = (1.13,1.17,1.25,1.33,1.45); #default values of factors
1.126     albertel  965:     my @powers = (1..$number_of_bubbles);
1.90      albertel  966:     &Apache::response::setrandomnumber();
                    967:     my $ind=&Math::Random::random_uniform_integer(1,0,$#powers);
                    968:     my $power = $powers[$ind];
                    969:     $ind=&Math::Random::random_uniform_integer(1,0,$#factors);
                    970:     my $factor = $factors[$ind];
1.158     albertel  971:     my @bubble_display;
1.90      albertel  972:     for ($ind=0;$ind<$number_of_bubbles;$ind++) {
1.91      albertel  973: 	$bubble_values[$ind] = $answer*($factor**($power-$powers[$#powers-$ind]));
1.158     albertel  974: 	$bubble_display[$ind] = &format_number($bubble_values[$ind],
1.153     albertel  975: 					       $format,$target,$safeeval);
1.91      albertel  976: 
1.90      albertel  977:     }
1.184     albertel  978:     my $correct = $alphabet[$number_of_bubbles-$power];
1.119     albertel  979:     &Math::Random::random_set_seed(@oldseed);
1.184     albertel  980:     return (\@bubble_values,\@bubble_display,$correct);
1.51      albertel  981: }
                    982: 
                    983: sub get_tolrange {
1.89      albertel  984:     my ($ans,$tol)=@_;
                    985:     my ($high,$low);
                    986:     if ($tol =~ /%$/) {
                    987: 	chop($tol);
                    988: 	my $change=$ans*($tol/100.0);
                    989: 	$high=$ans+$change;
                    990: 	$low=$ans-$change;
                    991:     } else {
                    992: 	$high=$ans+$tol;
                    993: 	$low=$ans-$tol;
                    994:     }
                    995:     return ($high,$low);
1.52      albertel  996: }
                    997: 
                    998: sub get_sigrange {
1.89      albertel  999:     my ($sig)=@_;
1.195     albertel 1000:     #&Apache::lonxml::debug("Got a sig of :$sig:");
1.166     albertel 1001:     my $courseid=$env{'request.course.id'};
                   1002:     if (lc($env{"course.$courseid.disablesigfigs"}) eq 'yes') {
1.147     albertel 1003: 	return (15,0);
                   1004:     }
1.89      albertel 1005:     my $sig_lbound;
                   1006:     my $sig_ubound;
                   1007:     if ($sig eq '') {
                   1008: 	$sig_lbound = 0; #SIG_LB_DEFAULT
                   1009: 	$sig_ubound =15; #SIG_UB_DEFAULT
                   1010:     } else {
                   1011: 	($sig_lbound,$sig_ubound) = split(/,/,$sig);
1.145     albertel 1012: 	if (!defined($sig_lbound)) {
1.89      albertel 1013: 	    $sig_lbound = 0; #SIG_LB_DEFAULT
                   1014: 	    $sig_ubound =15; #SIG_UB_DEFAULT
                   1015: 	}
1.145     albertel 1016: 	if (!defined($sig_ubound)) { $sig_ubound=$sig_lbound; }
1.133     albertel 1017:     }
                   1018:     if (($sig_ubound<$sig_lbound) ||
                   1019: 	($sig_lbound > 15) ||
                   1020: 	($sig =~/(\+|-)/ ) ) {
                   1021: 	my $errormsg=&mt("Invalid Significant figures detected")." ($sig)";
1.166     albertel 1022: 	if ($env{'request.state'} eq 'construct') {
1.133     albertel 1023: 	    $errormsg.=
                   1024: 		&Apache::loncommon::help_open_topic('Significant_Figures');
                   1025: 	}
                   1026: 	&Apache::lonxml::error($errormsg);
1.52      albertel 1027:     }
1.89      albertel 1028:     return ($sig_ubound,$sig_lbound);
1.34      albertel 1029: }
                   1030: 
1.212     albertel 1031: sub format_prior_response_string {
                   1032:     my ($mode,$answer) =@_;
                   1033:     return '<span class="LC_prior_string">'.
                   1034: 	    &HTML::Entities::encode($answer,'"<>&').'</span>';
1.211     albertel 1035: }
                   1036: 
1.34      albertel 1037: sub start_stringresponse {
1.89      albertel 1038:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                   1039:     my $result;
1.122     albertel 1040:     my $id = &Apache::response::start_response($parstack,$safeeval);
1.89      albertel 1041:     if ($target eq 'meta') {
                   1042: 	$result=&Apache::response::meta_package_write('stringresponse');
1.122     albertel 1043:     } elsif ($target eq 'edit') {
                   1044: 	$result.=&Apache::edit::tag_start($target,$token);
                   1045: 	$result.=&Apache::edit::text_arg('Answer:','answer',$token);
                   1046: 	$result.=&Apache::edit::select_arg('Type:','type',
                   1047: 			 [['cs','Case Sensitive'],['ci','Case Insensitive'],
                   1048: 			  ['mc','Case Insensitive, Any Order'],
                   1049: 			  ['re','Regular Expression']],$token);
1.152     albertel 1050: 	$result.=&Apache::edit::text_arg('String to display for answer:',
                   1051: 					 'answerdisplay',$token);
1.122     albertel 1052: 	$result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
                   1053:     } elsif ($target eq 'modified') {
1.146     albertel 1054: 	my $constructtag;
                   1055: 	$constructtag=&Apache::edit::get_new_args($token,$parstack,
                   1056: 						  $safeeval,'answer',
                   1057: 						  'type','answerdisplay');
                   1058: 	if ($constructtag) {
                   1059: 	    $result = &Apache::edit::rebuild_tag($token);
                   1060: 	    $result.=&Apache::edit::handle_insert();
                   1061: 	}
                   1062:     } elsif ($target eq 'web') {
                   1063: 	if (  &Apache::response::show_answer() ) {
1.152     albertel 1064: 	    my $answer=
                   1065: 	       &Apache::lonxml::get_param('answerdisplay',$parstack,$safeeval);
                   1066: 	    if (!defined $answer || $answer eq '') {
                   1067: 		$answer=
                   1068: 		    &Apache::lonxml::get_param('answer',$parstack,$safeeval);
                   1069: 	    }
1.195     albertel 1070: 	    $Apache::inputtags::answertxt{$id}=[$answer];
1.146     albertel 1071: 	} 
1.122     albertel 1072:     } elsif ($target eq 'answer' || $target eq 'grade') {
                   1073: 	&Apache::response::reset_params();
1.89      albertel 1074:     }
                   1075:     return $result;
1.34      albertel 1076: }
                   1077: 
                   1078: sub end_stringresponse {
1.122     albertel 1079:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.189     albertel 1080: 
1.122     albertel 1081:     my $result = '';
                   1082:     my $part=$Apache::inputtags::part;
                   1083:     my $id=$Apache::inputtags::response[-1];
                   1084:     my $answer=&Apache::lonxml::get_param('answer',$parstack,$safeeval);
                   1085:     my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval);
1.129     www      1086:     my $answerdisplay=&Apache::lonxml::get_param('answerdisplay',$parstack,$safeeval);
1.122     albertel 1087:     &Apache::lonxml::debug("current $answer ".$token->[2]);
                   1088:     if (!$Apache::lonxml::default_homework_loaded) {
                   1089: 	&Apache::lonxml::default_homework_load($safeeval);
                   1090:     }
1.162     albertel 1091:     if ( $target eq 'grade' && &Apache::response::submitted() ) {
1.140     albertel 1092: 	&Apache::response::setup_params('stringresponse',$safeeval);
1.122     albertel 1093: 	$safeeval->share_from('capa',['&caparesponse_capa_check_answer']);
                   1094: 	if ($Apache::lonhomework::type eq 'exam' ||
1.162     albertel 1095: 	    &Apache::response::submitted('scantron')) {
1.189     albertel 1096: 	    &Apache::response::scored_response($part,$id);
                   1097: 
1.122     albertel 1098: 	} else {
                   1099: 	    my $response = &Apache::response::getresponse();
                   1100: 	    if ( $response =~ /[^\s]/) {
                   1101: 		my %previous = &Apache::response::check_for_previous($response,
                   1102: 								    $part,$id);
                   1103: 		&Apache::lonxml::debug("submitted a $response<br>\n");
                   1104: 		&Apache::lonxml::debug($$parstack[-1] . "\n<br>");
                   1105: 		$Apache::lonhomework::results{"resource.$part.$id.submission"}=
                   1106: 		    $response;
1.142     albertel 1107: 		my ($ad,$msg);
1.122     albertel 1108: 		if ($type eq 're' ) { 
                   1109: 		    # if the RE wasn't in a var it likely got munged,
                   1110:                     # thus grab it from the var directly
                   1111: #		    my $testans=$token->[2]->{'answer'};
                   1112: #		    if ($testans !~ m/^\s*\$/) {
                   1113: #			$answer=$token->[2]->{'answer'};
                   1114: #		    }
1.143     albertel 1115: 		    ${$safeeval->varglob('LONCAPA::response')}=$response;
1.179     albertel 1116: 		    $result = &Apache::run::run('if ($LONCAPA::response=~m'.$answer.') { return 1; } else { return 0; }',$safeeval);
1.122     albertel 1117: 		    &Apache::lonxml::debug("current $response");
                   1118: 		    &Apache::lonxml::debug("current $answer");
                   1119: 		    $ad = ($result) ? 'APPROX_ANS' : 'INCORRECT';
                   1120: 		} else {
1.195     albertel 1121: 		    my @args = ('type');
                   1122: 		    my $args_ref = &setup_capa_args($safeeval,$parstack,
                   1123: 						    \@args,$response);
                   1124: 
                   1125: 		    &add_in_tag_answer($parstack,$safeeval);
                   1126: 		    my (@final_awards,@final_msgs,@names);
                   1127: 		    foreach my $name (keys(%answer)) {
                   1128: 			&Apache::lonxml::debug(" doing $name with ".join(':',@{ $answer{$name}{'answers'} }));
                   1129: 			${$safeeval->varglob('LONCAPA::CAPAresponse_answer')}=dclone($answer{$name});
                   1130: 			my ($result, @msgs)=&Apache::run::run("&caparesponse_check_list()",$safeeval);
                   1131: 			&Apache::lonxml::debug('msgs are'.join(':',@msgs));
                   1132: 			my ($awards)=split(/:/,$result);
                   1133: 			my (@awards) = split(/,/,$awards);
                   1134: 			($ad,$msg) = 
                   1135: 			    &Apache::inputtags::finalizeawards(\@awards,\@msgs);
                   1136: 			push(@final_awards,$ad);
                   1137: 			push(@final_msgs,$msg);
                   1138: 			push(@names,$name);
                   1139: 			&Apache::lonxml::debug("\n<br>result:$result:$Apache::lonxml::curdepth<br>\n");
1.122     albertel 1140: 		    }
1.195     albertel 1141: 		    my ($ad, $msg, $name) = 
                   1142: 			&Apache::inputtags::finalizeawards(\@final_awards,
                   1143: 							   \@final_msgs,
                   1144: 							   \@names,1);
1.122     albertel 1145: 		}
1.163     albertel 1146: 		if ($Apache::lonhomework::type eq 'survey' &&
                   1147: 		    ($ad eq 'INCORRECT' || $ad eq 'APPROX_ANS' ||
                   1148: 		     $ad eq 'EXACT_ANS')) {
                   1149: 		    $ad='SUBMITTED';
                   1150: 		}
1.122     albertel 1151: 		&Apache::response::handle_previous(\%previous,$ad);
                   1152: 		$Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=$ad;
1.142     albertel 1153: 		$Apache::lonhomework::results{"resource.$part.$id.awardmsg"}=$msg;
1.122     albertel 1154: 	    }
                   1155: 	}
                   1156:     } elsif ($target eq 'answer' || $target eq 'analyze') {
1.200     albertel 1157: 	&add_in_tag_answer($parstack,$safeeval);
1.122     albertel 1158: 	if ($target eq 'analyze') {
                   1159: 	    push (@{ $Apache::lonhomework::analyze{"parts"} },"$part.$id");
1.125     albertel 1160: 	    $Apache::lonhomework::analyze{"$part.$id.type"} = 'stringresponse';
1.154     albertel 1161: 	    &Apache::response::check_if_computed($token,$parstack,$safeeval,
                   1162: 						 'answer');
1.122     albertel 1163: 	}
1.140     albertel 1164: 	&Apache::response::setup_params('stringresponse',$safeeval);
1.122     albertel 1165: 	if ($target eq 'answer') {
1.125     albertel 1166: 	    $result.=&Apache::response::answer_header('stringresponse');
1.122     albertel 1167: 	}
1.200     albertel 1168: 	foreach my $name (keys(%answer)) {
                   1169: 	    my @answers = @{ $answer{$name}{'answers'} };
                   1170: 	    for (my $i=0;$i<=$#answers;$i++) {
                   1171: 		my $answer_part = $answers[$i];
                   1172: 		foreach my $element (@{$answer_part}) {
                   1173: 		    if ($target eq 'answer') {
                   1174: 			$result.=&Apache::response::answer_part('stringresponse',
                   1175: 								$element);
                   1176: 		    } elsif ($target eq 'analyze') {
                   1177: 			push (@{ $Apache::lonhomework::analyze{"$part.$id.answer"}{$name}[$i] },
                   1178: 			      $element);
                   1179: 		    }
                   1180: 		}
                   1181: 		if ($target eq 'answer' && $type eq 're') {
1.178     albertel 1182: 		    $result.=&Apache::response::answer_part('stringresponse',
                   1183: 							    $answerdisplay);
                   1184: 		}
1.122     albertel 1185: 	    }
1.200     albertel 1186: 	}
1.122     albertel 1187: 	my $string='Case Insensitive';
                   1188: 	if ($type eq 'mc') {
                   1189: 	    $string='Multiple Choice';
                   1190: 	} elsif ($type eq 'cs') {
                   1191: 	    $string='Case Sensitive';
                   1192: 	} elsif ($type eq 'ci') {
                   1193: 	    $string='Case Insensitive';
                   1194: 	} elsif ($type eq 're') {
                   1195: 	    $string='Regular Expression';
                   1196: 	}
                   1197: 	if ($target eq 'answer') {
1.166     albertel 1198: 	    if ($env{'form.answer_output_mode'} eq 'tex') {
1.125     albertel 1199: 		$result.=&Apache::response::answer_part('stringresponse',
1.122     albertel 1200: 							"$string");
                   1201: 	    } else {
1.125     albertel 1202: 		$result.=&Apache::response::answer_part('stringresponse',
1.122     albertel 1203: 							"<b>$string</b>");
                   1204: 	    }
                   1205: 	} elsif ($target eq 'analyze') {
                   1206: 	    push (@{$Apache::lonhomework::analyze{"$part.$id.str_type"}},
                   1207: 		  $type);
                   1208: 	}
                   1209: 	if ($target eq 'answer') {
1.125     albertel 1210: 	    $result.=&Apache::response::answer_footer('stringresponse');
1.122     albertel 1211: 	}
                   1212:     } elsif ($target eq 'edit') {
                   1213: 	$result.='</td></tr>'.&Apache::edit::end_table;
1.211     albertel 1214:     } elsif ($target eq 'web' || $target eq 'tex') {
1.212     albertel 1215: 	&Apache::response::setup_prior_tries_hash(\&format_prior_response_string);
1.122     albertel 1216:     }
                   1217:     if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' || 
                   1218: 	$target eq 'tex' || $target eq 'analyze') {
1.189     albertel 1219: 	&Apache::lonxml::increment_counter(&Apache::response::repetition());
1.122     albertel 1220:     }
                   1221:     &Apache::response::end_response;
                   1222:     return $result;
1.44      albertel 1223: }
                   1224: 
                   1225: sub start_formularesponse {
1.89      albertel 1226:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                   1227:     my $result;
                   1228:     if ($target eq 'meta') {
1.104     bowersj2 1229: 	&Apache::response::start_response($parstack,$safeeval);
1.89      albertel 1230: 	$result=&Apache::response::meta_package_write('formularesponse');
1.104     bowersj2 1231: 	&Apache::response::end_response();
1.89      albertel 1232:     } else {
                   1233: 	$result.=&start_numericalresponse(@_);
                   1234:     }
                   1235:     return $result;
1.44      albertel 1236: }
                   1237: 
                   1238: sub end_formularesponse {
1.89      albertel 1239:     return end_numericalresponse(@_);
1.3       albertel 1240: }
                   1241: 
1.1       albertel 1242: 1;
1.3       albertel 1243: __END__
1.89      albertel 1244: 

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