Annotation of loncom/homework/caparesponse/caparesponse.pm, revision 1.169

1.3       albertel    1: # The LearningOnline Network with CAPA
                      2: # caparesponse definition
1.47      albertel    3: #
1.169   ! albertel    4: # $Id: caparesponse.pm,v 1.168 2005/05/23 21:18:25 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;
1.129     www        32: use Apache::lonlocal;
1.166     albertel   33: use Apache::lonnet;
1.3       albertel   34: 
1.50      harris41   35: BEGIN {
1.89      albertel   36:     &Apache::lonxml::register('Apache::caparesponse',('caparesponse','numericalresponse','stringresponse','formularesponse'));
1.3       albertel   37: }
                     38: 
1.89      albertel   39: sub start_numericalresponse {
                     40:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
                     41:     my $id = &Apache::response::start_response($parstack,$safeeval);
                     42:     my $result;
1.143     albertel   43:     undef %{$safeeval->varglob('LONCAPA::CAPAresponse_args')};
1.89      albertel   44:     if ($target eq 'edit') {
                     45: 	$result.=&Apache::edit::tag_start($target,$token);
                     46: 	$result.=&Apache::edit::text_arg('Answer:','answer',$token);
                     47: 	if ($token->[1] eq 'numericalresponse') {
1.122     albertel   48: 	    $result.=&Apache::edit::text_arg('Incorrect Answers:','incorrect',
1.149     www        49: 					     $token).
                     50: 		&Apache::loncommon::help_open_topic('numerical_wrong_answers');
1.89      albertel   51: 	    $result.=&Apache::edit::text_arg('Unit:','unit',$token,5).
                     52: 		&Apache::loncommon::help_open_topic('Physical_Units');
                     53: 	    $result.=&Apache::edit::text_arg('Format:','format',$token,4).
                     54: 		&Apache::loncommon::help_open_topic('Numerical_Response_Format');
                     55: 	} elsif ($token->[1] eq 'formularesponse') {
                     56: 	    $result.=&Apache::edit::text_arg('Sample Points:','samples',
                     57: 					     $token,40).
                     58: 	      &Apache::loncommon::help_open_topic('Formula_Response_Sampling');
                     59: 	}
                     60: 	$result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
                     61:     } elsif ($target eq 'modified') {
                     62: 	my $constructtag;
                     63: 	if ($token->[1] eq 'numericalresponse') {
                     64: 	    $constructtag=&Apache::edit::get_new_args($token,$parstack,
                     65: 						      $safeeval,'answer',
1.156     albertel   66:  						      'incorrect','unit',
1.117     albertel   67: 						      'format');
1.89      albertel   68: 	} elsif ($token->[1] eq 'formularesponse') {
                     69: 	    $constructtag=&Apache::edit::get_new_args($token,$parstack,
                     70: 						      $safeeval,'answer',
                     71: 						      'samples');
                     72: 	}
                     73: 	if ($constructtag) {
                     74: 	    $result = &Apache::edit::rebuild_tag($token);
                     75: 	    $result.=&Apache::edit::handle_insert();
1.22      albertel   76: 	}
1.89      albertel   77:     } elsif ($target eq 'meta') {
                     78: 	$result=&Apache::response::meta_package_write('numericalresponse');
                     79:     } elsif ($target eq 'answer' || $target eq 'grade') {
                     80: 	&Apache::response::reset_params();
1.96      albertel   81:     } elsif ($target eq 'web') {
                     82: 	my $partid = $Apache::inputtags::part;
                     83: 	my $hideunit=&Apache::lonnet::EXT('resource.'.$partid.'_'.$id.'.turnoffunit');
                     84: 	&Apache::lonxml::debug("Got unit $hideunit for $partid $id");
                     85: 	#no way to enter units, with radio buttons
                     86: 	if (lc($hideunit) eq "yes") {
                     87: 	    my $unit=&Apache::lonxml::get_param_var('unit',$parstack,
                     88: 						    $safeeval);
                     89: 	    if ($unit =~ /\S/) { $result.=" (in $unit) "; }
                     90: 	}
1.146     albertel   91: 	if (  &Apache::response::show_answer() ) {
                     92: 	    my $answertxt;
                     93: 	    my (@answers)=&Apache::lonxml::get_param_var('answer',$parstack,
                     94: 							 $safeeval);
                     95: 	    my (@formats)=&Apache::lonxml::get_param_var('format',$parstack,
                     96: 							 $safeeval);
                     97: 	    my $unit=&Apache::lonxml::get_param_var('unit',$parstack,
                     98: 						    $safeeval);
                     99: 	    for (my $i=0; $i <= $#answers; $i++) {
                    100: 		my $answer=$answers[$i];
                    101: 		my $format;
                    102: 		if ($#formats > 0) {
                    103: 		    $format=$formats[$i];
                    104: 		} else {
                    105: 		    $format=$formats[0];
                    106: 		}
1.156     albertel  107: 		if ($unit=~/\$/) { $format="\$".$format; $unit=~s/\$//g; }
                    108: 		if ($unit=~/\,/) { $format="\,".$format; $unit=~s/\,//g; }
1.153     albertel  109: 		my $formatted=&format_number($answer,$format,$target,
                    110: 					     $safeeval);
                    111: 		$answertxt.=$formatted.',';
1.146     albertel  112: 	    }
                    113: 	    chop $answertxt;
                    114: 	    if ($target eq 'web') {
1.148     albertel  115: 		$answertxt.=" $unit ";
1.146     albertel  116: 	    }
                    117: 	    $Apache::inputtags::answertxt{$id}=$answertxt;
                    118: 	}
1.16      albertel  119:     }
1.89      albertel  120:     return $result;
1.21      albertel  121: }
                    122: 
1.167     albertel  123: sub check_submission {
                    124:     my ($response,$partid,$id,$tag,$parstack,$safeeval)=@_;
                    125:     my $args_ref= \%{$safeeval->varglob('LONCAPA::CAPAresponse_args')};
                    126:     $$args_ref{'response'}=$response;
                    127:     my $hideunit=&Apache::lonnet::EXT('resource.'.$partid.'_'.$id.'.turnoffunit');
                    128:     
                    129:     foreach my $arg ('type','tol','sig','format','unit','calc',
                    130: 		     'samples') {
                    131: 	$$args_ref{$arg}=
                    132: 	    &Apache::lonxml::get_param($arg,$parstack,$safeeval);
                    133:     }
                    134:     foreach my $key (keys(%Apache::inputtags::params)) {
                    135: 	$$args_ref{$key}=$Apache::inputtags::params{$key};
                    136:     }
                    137:     
                    138:     #no way to enter units, with radio buttons
                    139:     if ($Apache::lonhomework::type eq 'exam' ||
                    140: 	lc($hideunit) eq "yes") {
                    141: 	delete($$args_ref{'unit'});
                    142:     }
                    143:     #sig fig don't make much sense either
                    144:     if (($Apache::lonhomework::type eq 'exam' ||
                    145: 	 &Apache::response::submitted('scantron')) &&
                    146: 	$tag eq 'numericalresponse') {
                    147: 	delete($$args_ref{'sig'});
                    148:     }
                    149:     
                    150:     if ($tag eq 'formularesponse') {
                    151: 	$$args_ref{'type'}='fml';
                    152:     } elsif ($tag eq 'numericalresponse') {
                    153: 	$$args_ref{'type'}='float';
                    154:     }
                    155:     my @answer=&Apache::lonxml::get_param_var('answer',$parstack,$safeeval);
                    156:     &Apache::lonxml::debug('answer is'.join(':',@answer));
                    157:     @{$safeeval->varglob('LONCAPA::CAPAresponse_answer')}=@answer;
                    158:     
                    159:     my ($result,@msgs) = 
                    160: 	&Apache::run::run("&caparesponse_check_list()",$safeeval);
                    161:     &Apache::lonxml::debug('msgs are'.join(':',@msgs));
                    162:     my ($awards)=split(/:/,$result);
                    163:     my @awards= split(/,/,$awards);
                    164:     return(\@awards,\@msgs);
                    165: }
                    166: 
1.89      albertel  167: sub end_numericalresponse {
                    168:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.90      albertel  169:     my $increment=1;
1.89      albertel  170:     my $result = '';
                    171:     if (!$Apache::lonxml::default_homework_loaded) {
                    172: 	&Apache::lonxml::default_homework_load($safeeval);
1.34      albertel  173:     }
1.167     albertel  174:     my $partid = $Apache::inputtags::part;
                    175:     my $id = $Apache::inputtags::response[-1];
1.125     albertel  176:     my $tag;
1.168     albertel  177:     $safeeval->share_from('capa',['&caparesponse_capa_check_answer']);
1.125     albertel  178:     if (scalar(@$tagstack)) { $tag=$$tagstack[-1]; }
1.162     albertel  179:     if ( $target eq 'grade' && &Apache::response::submitted() ) {
1.140     albertel  180: 	&Apache::response::setup_params($tag,$safeeval);
1.95      albertel  181: 	if ($Apache::lonhomework::type eq 'exam' && 
1.125     albertel  182: 	    $tag eq 'formularesponse') {
1.95      albertel  183: 	    $increment=&Apache::response::scored_response($partid,$id);
                    184: 	} else {
                    185: 	    my $response = &Apache::response::getresponse();
                    186: 	    if ( $response =~ /[^\s]/) {
                    187: 		my $ad;
                    188: 		my %previous = &Apache::response::check_for_previous($response,$partid,$id);
                    189: 		&Apache::lonxml::debug("submitted a $response<br>\n");
                    190: 		&Apache::lonxml::debug($$parstack[-1] . "\n<br>");
                    191: 		
1.162     albertel  192: 		if ( &Apache::response::submitted('scantron')) {
1.117     albertel  193: 		    my $number_of_bubbles = &Apache::lonnet::EXT('resource.'.$partid.'_'.$id.'.numbubbles');
                    194: 		    if (!$number_of_bubbles) { $number_of_bubbles=8; }
                    195: 		    my (@formats)=&Apache::lonxml::get_param_var('format',$parstack,$safeeval);
                    196: 		    my (@answers)=&Apache::lonxml::get_param_var('answer',$parstack,$safeeval);
                    197: 		    my (@incorrect)=&Apache::lonxml::get_param_var('incorrect',$parstack,$safeeval);
1.161     albertel  198: 		    if ($#incorrect eq 0) { @incorrect=(split(/,/,$incorrect[0])); }
1.158     albertel  199: 		    my ($values,$display)=&make_numerical_bubbles($number_of_bubbles,$target,$answers[0],$formats[0],\@incorrect,$safeeval);
                    200: 		    $response=$values->[$response];
1.95      albertel  201: 		}
1.115     albertel  202: 		$Apache::lonhomework::results{"resource.$partid.$id.submission"}=$response;
1.167     albertel  203: 		my ($awards,$msgs)=&check_submission($response,$partid,$id,
                    204: 						     $tag,$parstack,$safeeval);
                    205: 
                    206: 		($ad,my $msg) = &Apache::inputtags::finalizeawards($awards,$msgs);
1.142     albertel  207: 		&Apache::lonxml::debug('ad is'.$ad);
                    208: 		if ($ad eq 'SIG_FAIL') {
                    209: 		    my ($sig_u,$sig_l)=
                    210: 			&get_sigrange($Apache::inputtags::params{'sig'});
                    211: 		    $msg=join(':',$msg,$sig_l,$sig_u);
                    212: 		    &Apache::lonxml::debug("sigs bad $sig_u $sig_l ".
                    213: 					   $Apache::inputtags::params{'sig'});
                    214: 		}
1.95      albertel  215: 		&Apache::lonxml::debug("\n<br>result:$result:$Apache::lonxml::curdepth<br>\n");
1.163     albertel  216: 		if ($Apache::lonhomework::type eq 'survey' &&
                    217: 		    ($ad eq 'INCORRECT' || $ad eq 'APPROX_ANS' ||
                    218: 		     $ad eq 'EXACT_ANS')) {
                    219: 		    $ad='SUBMITTED';
                    220: 		}
1.95      albertel  221: 		&Apache::response::handle_previous(\%previous,$ad);
                    222: 		$Apache::lonhomework::results{"resource.$partid.$id.awarddetail"}=$ad;
1.142     albertel  223: 		$Apache::lonhomework::results{"resource.$partid.$id.awardmsg"}=$msg;
1.95      albertel  224: 		$result='';
1.90      albertel  225: 	    }
1.89      albertel  226: 	}
                    227:     } elsif ($target eq 'web' || $target eq 'tex') {
1.90      albertel  228: 	my (@answers)=&Apache::lonxml::get_param_var('answer',$parstack,
                    229: 						     $safeeval);
1.89      albertel  230: 	my $award = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
                    231: 	my $status = $Apache::inputtags::status['-1'];
                    232: 	if ($Apache::lonhomework::type eq 'exam') {
1.117     albertel  233: 	    my $number_of_bubbles = &Apache::lonnet::EXT('resource.'.$partid.'_'.$id.'.numbubbles');
1.126     albertel  234: 	    if ($Apache::inputtags::params{'numbubbles'}) {
                    235: 		$number_of_bubbles = $Apache::inputtags::params{'numbubbles'};
                    236: 	    }
1.117     albertel  237: 	    if (!$number_of_bubbles) { $number_of_bubbles=8; }
1.126     albertel  238: 	    
1.89      albertel  239: 	    my (@formats)=&Apache::lonxml::get_param_var('format',$parstack,
                    240: 							 $safeeval);
                    241: 	    my $unit=&Apache::lonxml::get_param_var('unit',$parstack,
                    242: 						    $safeeval);
1.117     albertel  243: 	    my (@incorrect)=&Apache::lonxml::get_param_var('incorrect',$parstack,$safeeval);
1.161     albertel  244: 	    if ($#incorrect eq 0) { @incorrect=(split(/,/,$incorrect[0])); }
1.158     albertel  245: 	    my ($bubble_values,$bubble_display)=
                    246: 		&make_numerical_bubbles($number_of_bubbles,
                    247: 					$target,$answers[0],
                    248: 					$formats[0],\@incorrect,$safeeval);
1.89      albertel  249: 	    my @alphabet=('A'..'Z');
                    250: 	    if ($target eq 'web') {
1.125     albertel  251: 		if ($tag eq 'numericalresponse') {
1.89      albertel  252: 		    if ($unit=~/\S/) {$result.=' (in '.$unit.')<br /><br />';}
                    253: 		    $result.= '<table border="1"><tr>';
1.116     albertel  254: 		    my $previous=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.$id.submission"};
1.90      albertel  255: 		    for (my $ind=0;$ind<$number_of_bubbles;$ind++) {
1.116     albertel  256: 			my $checked='';
1.158     albertel  257: 			if ($previous eq $bubble_values->[$ind]) {
1.116     albertel  258: 			    $checked=" checked='on' ";
                    259: 			}
1.90      albertel  260: 			$result.='<td><input type="radio" name="HWVAL_'.$id.
1.158     albertel  261: 			    '" value="'.$bubble_values->[$ind].'" '.$checked
1.116     albertel  262: 			    .' /><b>'.$alphabet[$ind].'</b>: '.
1.158     albertel  263: 			    $bubble_display->[$ind].'</td>';
1.89      albertel  264: 		    }
                    265: 		    $result.='</tr></table>';
1.125     albertel  266: 		} elsif ($tag eq 'formularesponse') {
1.90      albertel  267: 		    $result.= '<br /><br /><font color="red">
                    268:                            <textarea name="HWVAL_'.$id.'" rows="4" cols="50">
                    269:                            </textarea></font> <br /><br />';
1.89      albertel  270: 		}
                    271: 	    } elsif ($target eq 'tex') {
1.107     sakharuk  272: 		if ((defined $unit) and ($unit=~/\S/) and ($Apache::lonhomework::type eq 'exam')) {
1.89      albertel  273: 		    $result.=' \textit{(in} \verb|'.$unit.'|\textit{)} ';
                    274: 		}
1.125     albertel  275: 		if ($tag eq 'numericalresponse') {
1.90      albertel  276: 		    my ($celllength,$number_of_tables,@table_range)=
1.159     albertel  277: 			&get_table_sizes($number_of_bubbles,$bubble_display);
1.89      albertel  278: 		    my $j=0;
                    279: 		    my $cou=0;
                    280: 		    $result.='\vskip -1 mm \noindent \begin{enumerate}\item[\textbf{'.$Apache::lonxml::counter.'}.]';
                    281: 		    for (my $i=0;$i<$number_of_tables;$i++) {
1.144     sakharuk  282: 			$result.='\vskip -1 mm \noindent \setlength{\tabcolsep}{2 mm}\begin{tabular}{';
1.90      albertel  283: 			for (my $ind=0;$ind<$table_range[$j];$ind++) {
1.128     sakharuk  284: 			    $result.='p{3 mm}p{'.$celllength.' mm}';
1.89      albertel  285: 			}
                    286: 			$result.='}';
1.90      albertel  287: 			for (my $ind=$cou;$ind<$cou+$table_range[$j];$ind++) {
1.159     albertel  288: 			    $result.='\hskip -4 mm {\small \textbf{'.$alphabet[$ind].'}}$\bigcirc$ & \hskip -3 mm {\small '.$bubble_display->[$ind].'} ';
1.89      albertel  289: 			    if ($ind != $cou+$table_range[$j]-1) {$result.=' & ';}
                    290: 			}
                    291: 			$cou += $table_range[$j];
                    292: 			$j++;
                    293: 			$result.='\\\\\end{tabular}\vskip 0 mm ';
                    294: 		    }
                    295: 		    $result.='\end{enumerate}';
                    296: 		} else {
                    297: 		    $result.='\fbox{\fbox{\parbox{\textwidth-5mm}{\strut\\\\\strut\\\\\strut\\\\\strut\\\\}}}';
1.93      albertel  298: 		    my $repetition = &Apache::response::repetition();
1.89      albertel  299: 		    $result.='\begin{enumerate}';
                    300: 		    for (my $i=0;$i<$repetition;$i++) {
1.93      albertel  301: 			$result.='\item[\textbf{'.($Apache::lonxml::counter+$i).'}.]\textit{Leave blank on scoring form}\vskip 0 mm';
1.89      albertel  302: 		    }
1.90      albertel  303: 		    $increment=$repetition;
1.89      albertel  304: 		    $result.= '\end{enumerate}';
                    305: 		}
                    306: 	    }
                    307: 	}
                    308:     } elsif ($target eq 'edit') {
                    309: 	$result.='</td></tr>'.&Apache::edit::end_table;
                    310:     } elsif ($target eq 'answer' || $target eq 'analyze') {
1.167     albertel  311: 	my $part_id="$partid.$id";
1.89      albertel  312: 	if ($target eq 'analyze') {
                    313: 	    push (@{ $Apache::lonhomework::analyze{"parts"} },$part_id);
1.125     albertel  314: 	    $Apache::lonhomework::analyze{"$part_id.type"} = $tag;
1.117     albertel  315: 	    my (@incorrect)=&Apache::lonxml::get_param_var('incorrect',$parstack,$safeeval);
1.161     albertel  316: 	    if ($#incorrect eq 0) { @incorrect=(split(/,/,$incorrect[0])); }
1.117     albertel  317: 	    push (@{ $Apache::lonhomework::analyze{"$part_id.incorrect"} }, @incorrect);
1.154     albertel  318: 	    &Apache::response::check_if_computed($token,$parstack,
                    319: 						 $safeeval,'answer');
1.89      albertel  320: 	}
1.125     albertel  321: 	if (scalar(@$tagstack)) {
1.140     albertel  322: 	    &Apache::response::setup_params($tag,$safeeval);
1.125     albertel  323: 	}
1.89      albertel  324: 	my (@answers)=&Apache::lonxml::get_param_var('answer',$parstack,$safeeval);
1.58      sakharuk  325: 	my (@formats)=&Apache::lonxml::get_param_var('format',$parstack,$safeeval);
                    326: 	my $unit=&Apache::lonxml::get_param_var('unit',$parstack,$safeeval);
1.89      albertel  327: 	my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval);
                    328: 	
                    329: 	if ($target eq 'answer') {
1.125     albertel  330: 	    $result.=&Apache::response::answer_header($tag);
1.89      albertel  331: 	}
                    332: 	for(my $i=0;$i<=$#answers;$i++) {
                    333: 	    my $ans=$answers[$i];
1.90      albertel  334: 	    my $fmt=$formats[0];
                    335: 	    if (@formats && $#formats) {$fmt=$formats[$i];}
1.89      albertel  336: 	    my ($high,$low);
                    337: 	    if ($Apache::inputtags::params{'tol'}) {
                    338: 		($high,$low)=&get_tolrange($ans,$Apache::inputtags::params{'tol'});
                    339: 	    }
                    340: 	    my ($sighigh,$siglow);
                    341: 	    if ($Apache::inputtags::params{'sig'}) {
                    342: 		($sighigh,$siglow)=&get_sigrange($Apache::inputtags::params{'sig'});
                    343: 	    }
1.125     albertel  344: 	    if ($fmt && $tag eq 'numericalresponse') {
1.112     albertel  345: 		$fmt=~s/e/E/g;
1.156     albertel  346: 		if ($unit=~/\$/) { $fmt="\$".$fmt; $unit=~s/\$//g; }
                    347: 		if ($unit=~/\,/) { $fmt="\,".$fmt; $unit=~s/\,//g; }
1.153     albertel  348: 		$ans = &format_number($ans,$fmt,$target,$safeeval);
1.155     albertel  349: 		#if ($high) {
                    350: 		#    $high=&format_number($high,$fmt,$target,$safeeval);
                    351: 		#    $low =&format_number($low,$fmt,$target,$safeeval);
                    352: 		#}
1.60      sakharuk  353: 	    }
1.167     albertel  354: 	    my $response=$ans;
1.169   ! albertel  355: 	    if ($unit) {
        !           356: 		my $cleanunit=$unit;
        !           357: 		$cleanunit=~s/\$\,//g;
        !           358: 		$response.=" $cleanunit";
        !           359: 	    }
1.89      albertel  360: 	    if ($target eq 'answer') {
1.125     albertel  361: 		if ($high && $tag eq 'numericalresponse') { $ans.=' ['.$low.','.$high.']'; }
1.145     albertel  362: 		if (defined($sighigh) && $tag eq 'numericalresponse') {
1.166     albertel  363: 		    if ($env{'form.answer_output_mode'} eq 'tex') {
1.106     sakharuk  364: 			$ans.= " Sig $siglow - $sighigh";
1.98      sakharuk  365: 		    } else {
1.101     albertel  366: 			$ans.= " Sig <i>$siglow - $sighigh</i>";
1.98      sakharuk  367: 		    }
                    368: 		}
1.125     albertel  369: 		$result.=&Apache::response::answer_part($tag,$ans);
1.89      albertel  370: 	    } elsif ($target eq 'analyze') {
                    371: 		push (@{ $Apache::lonhomework::analyze{"$part_id.answer"} }, $ans);
                    372: 		if ($high) {
                    373: 		    push (@{ $Apache::lonhomework::analyze{"$part_id.ans_high"} }, $high);
                    374: 		    push (@{ $Apache::lonhomework::analyze{"$part_id.ans_low"} }, $low);
1.58      sakharuk  375: 		}
1.165     albertel  376: 		if ($fmt) {
                    377: 		    push (@{ $Apache::lonhomework::analyze{"$part_id.format"} }, $fmt);
                    378: 		}
1.79      sakharuk  379: 	    }
1.167     albertel  380: 	    my ($awards,$msgs)=&check_submission($response,$partid,$id,$tag,
                    381: 						 $parstack,$safeeval);
                    382: 	    my ($ad,$msg) =&Apache::inputtags::finalizeawards($awards,$msgs);
                    383: 	    if ($ad ne 'EXACT_ANS' && $ad ne 'APPROX_ANS') {
1.168     albertel  384: 		&Apache::lonxml::error(&mt('Computer\'s answer is incorrect ("[_1]"). It is likely that the tolerance range ("[_2]" to "[_3]") or significant figures ("[_4]" to "[_5]") needs to be adjusted',$response,$low,$high,$siglow,$sighigh));
1.167     albertel  385: 	    }
1.36      albertel  386: 	}
1.102     albertel  387: 	if (defined($unit) and ($unit ne '') and
1.125     albertel  388: 	    $tag eq 'numericalresponse') {
1.89      albertel  389: 	    if ($target eq 'answer') {
1.166     albertel  390: 		if ($env{'form.answer_output_mode'} eq 'tex') {
1.125     albertel  391: 		    $result.=&Apache::response::answer_part($tag,
1.106     sakharuk  392: 							    " Unit: $unit ");
1.98      sakharuk  393: 		} else {
1.125     albertel  394: 		    $result.=&Apache::response::answer_part($tag,
1.98      sakharuk  395: 							    "Unit: <b>$unit</b>");
                    396: 		}
1.89      albertel  397: 	    } elsif ($target eq 'analyze') {
1.103     albertel  398: 		push (@{ $Apache::lonhomework::analyze{"$part_id.unit"} }, $unit);
1.89      albertel  399: 	    }
                    400: 	}
1.125     albertel  401: 	if ($tag eq 'formularesponse' && $target eq 'answer') {
1.89      albertel  402: 	    my $samples=&Apache::lonxml::get_param('samples',$parstack,$safeeval);
1.125     albertel  403: 	    $result.=&Apache::response::answer_part($tag,$samples);
1.89      albertel  404: 	}
                    405: 	if ($target eq 'answer') {
1.125     albertel  406: 	    $result.=&Apache::response::answer_footer($tag);
1.89      albertel  407: 	}
1.69      sakharuk  408:     }
1.121     sakharuk  409:     if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' || 
1.90      albertel  410: 	$target eq 'tex' || $target eq 'analyze') {
                    411: 	&Apache::lonxml::increment_counter($increment);
                    412:     }
1.89      albertel  413:     &Apache::response::end_response;
                    414:     return $result;
1.90      albertel  415: }
                    416: 
                    417: sub get_table_sizes {
1.128     sakharuk  418:     my ($number_of_bubbles,$rbubble_values)=@_;
                    419:     my $scale=2; #mm for one digit
                    420:     my $cell_width=0;
                    421:     foreach my $member (@$rbubble_values) {
                    422: 	my $cell_width_real=0;
1.160     albertel  423: 	if ($member=~/(\+|-)?(\d*)\.?(\d*)\s*\$?\\times\s*10\^{(\+|-)?(\d+)}\$?/) {
1.138     sakharuk  424: 	    $cell_width_real=(length($2)+length($3)+length($5)+7)*$scale;
                    425: 	} elsif ($member=~/(\d*)\.?(\d*)(E|e)(\+|-)?(\d*)/) {
1.128     sakharuk  426: 	    $cell_width_real=(length($1)+length($2)+length($5)+9)*$scale;
1.138     sakharuk  427:         } elsif ($member=~/(\d*)\.(\d*)/) {
1.132     sakharuk  428: 	    $cell_width_real=(length($1)+length($2)+3)*$scale;
1.128     sakharuk  429: 	} else {
1.138     sakharuk  430: 	    $cell_width_real=(length($member)+1)*$scale*0.9;
1.128     sakharuk  431: 	}
                    432: 	if ($cell_width_real>$cell_width) {$cell_width=$cell_width_real;}
1.90      albertel  433:     }
1.132     sakharuk  434:     $cell_width+=8; 
1.130     sakharuk  435:     my $textwidth;
1.166     albertel  436:     if ($env{'form.textwidth'} ne '') {
                    437: 	$env{'form.textwidth'}=~/(\d*)\.?(\d*)/;
1.132     sakharuk  438: 	$textwidth=$1.'.'.$2;
1.130     sakharuk  439:     } else {
1.166     albertel  440: 	$env{'form.textwidth'}=~/(\d+)\.?(\d*)/;
1.132     sakharuk  441: 	$textwidth=$1.'.'.$2;
1.130     sakharuk  442:     }
1.128     sakharuk  443:     my $bubbles_per_line=int($textwidth/$cell_width);
1.151     sakharuk  444:     if ($bubbles_per_line > $number_of_bubbles) {
                    445: 	$bubbles_per_line=$number_of_bubbles;
                    446:     }elsif (($bubbles_per_line > $number_of_bubbles/2) && ($number_of_bubbles % 2==0)) {$bubbles_per_line=$number_of_bubbles/2;}
1.128     sakharuk  447:     my $number_of_tables = int($number_of_bubbles/$bubbles_per_line);
1.90      albertel  448:     my @table_range = ();
1.128     sakharuk  449:     for (my $i=0;$i<$number_of_tables;$i++) {push @table_range,$bubbles_per_line;}
                    450:     if ($number_of_bubbles % $bubbles_per_line) {
1.90      albertel  451: 	$number_of_tables++;
1.128     sakharuk  452: 	push @table_range,($number_of_bubbles % $bubbles_per_line);
1.90      albertel  453:     }
1.128     sakharuk  454:     $cell_width-=8;
1.136     sakharuk  455:     $cell_width=$cell_width*3/4;
1.128     sakharuk  456:     return ($cell_width,$number_of_tables,@table_range);
1.90      albertel  457: }
                    458: 
                    459: sub format_number {
1.153     albertel  460:     my ($number,$format,$target,$safeeval)=@_;
1.90      albertel  461:     my $ans;
1.153     albertel  462:     if ($format eq '') {
1.90      albertel  463: 	#What is the number? (integer,decimal,floating point)
                    464: 	if ($number=~/^(\d*\.?\d*)(E|e)(\d*)$/) {
1.113     sakharuk  465: 	    $format = '3e';
1.90      albertel  466: 	} elsif ($number=~/^(\d*)\.(\d*)$/) {
                    467: 	    $format = '4f';
                    468: 	} elsif ($number=~/^(\d*)$/) {
                    469: 	    $format = 'd';
                    470: 	}
                    471:     }
1.156     albertel  472:     if (!$Apache::lonxml::default_homework_loaded) {
                    473: 	&Apache::lonxml::default_homework_load($safeeval);
                    474:     }
1.153     albertel  475:     $ans=&Apache::run::run("&prettyprint(q\0$number\0,q\0$format\0,q\0$target\0)",$safeeval);
1.90      albertel  476:     return $ans;
                    477: }
                    478: 
                    479: sub make_numerical_bubbles {
1.153     albertel  480:     my ($number_of_bubbles,$target,$answer,$format,$incorrect,$safeeval) =@_;
1.158     albertel  481:     my @bubble_values=();
1.119     albertel  482:     &Apache::lonxml::debug("answer is $answer incorrect is $incorrect");
                    483:     my @oldseed=&Math::Random::random_get_seed();
1.117     albertel  484:     if (defined($incorrect) && ref($incorrect)) {
                    485: 	&Apache::lonxml::debug("inside ".(scalar(@$incorrect)+1 gt $number_of_bubbles));
1.126     albertel  486: 	if (defined($$incorrect[0]) &&
                    487: 	    scalar(@$incorrect)+1 >= $number_of_bubbles) {
1.117     albertel  488: 	    &Apache::lonxml::debug("inside ".(scalar(@$incorrect)+1).":$number_of_bubbles");
                    489: 	    &Apache::response::setrandomnumber();
                    490: 	    my @rand_inc=&Math::Random::random_permutation(@$incorrect);
                    491: 	    @bubble_values=@rand_inc[0..($number_of_bubbles-2)];
                    492: 	    @bubble_values=sort {$a <=> $b} (@bubble_values,$answer);
                    493: 	    &Apache::lonxml::debug("Answer was :$answer: returning :".$#bubble_values.": whih are :".join(':',@bubble_values));
1.119     albertel  494: 	    &Math::Random::random_set_seed(@oldseed);
1.134     albertel  495: 	    if (defined($format) && $format ne '') {
1.158     albertel  496: 		my @bubble_display;
1.137     albertel  497: 		foreach my $value (@bubble_values) {
1.158     albertel  498: 		    push(@bubble_display,
                    499: 			 &format_number($value,$format,$target,$safeeval));
1.134     albertel  500: 		}
1.158     albertel  501: 		return (\@bubble_values,\@bubble_display);
                    502: 	    } else {
                    503: 		return (\@bubble_values,\@bubble_values);
1.134     albertel  504: 	    }
1.117     albertel  505: 	}
1.127     albertel  506: 	if (defined($$incorrect[0]) &&
                    507: 	    scalar(@$incorrect)+1 < $number_of_bubbles) {
1.161     albertel  508: 	    &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  509: 	}
1.117     albertel  510:     }
1.90      albertel  511:     my @factors = (1.13,1.17,1.25,1.33,1.45); #default values of factors
1.126     albertel  512:     my @powers = (1..$number_of_bubbles);
1.90      albertel  513:     &Apache::response::setrandomnumber();
                    514:     my $ind=&Math::Random::random_uniform_integer(1,0,$#powers);
                    515:     my $power = $powers[$ind];
                    516:     $ind=&Math::Random::random_uniform_integer(1,0,$#factors);
                    517:     my $factor = $factors[$ind];
1.158     albertel  518:     my @bubble_display;
1.90      albertel  519:     for ($ind=0;$ind<$number_of_bubbles;$ind++) {
1.91      albertel  520: 	$bubble_values[$ind] = $answer*($factor**($power-$powers[$#powers-$ind]));
1.158     albertel  521: 	$bubble_display[$ind] = &format_number($bubble_values[$ind],
1.153     albertel  522: 					       $format,$target,$safeeval);
1.91      albertel  523: 
1.90      albertel  524:     }
1.119     albertel  525:     &Math::Random::random_set_seed(@oldseed);
1.158     albertel  526:     return (\@bubble_values,\@bubble_display);
1.51      albertel  527: }
                    528: 
                    529: sub get_tolrange {
1.89      albertel  530:     my ($ans,$tol)=@_;
                    531:     my ($high,$low);
                    532:     if ($tol =~ /%$/) {
                    533: 	chop($tol);
                    534: 	my $change=$ans*($tol/100.0);
                    535: 	$high=$ans+$change;
                    536: 	$low=$ans-$change;
                    537:     } else {
                    538: 	$high=$ans+$tol;
                    539: 	$low=$ans-$tol;
                    540:     }
                    541:     return ($high,$low);
1.52      albertel  542: }
                    543: 
                    544: sub get_sigrange {
1.89      albertel  545:     my ($sig)=@_;
                    546:     &Apache::lonxml::debug("Got a sig of :$sig:");
1.166     albertel  547:     my $courseid=$env{'request.course.id'};
                    548:     if (lc($env{"course.$courseid.disablesigfigs"}) eq 'yes') {
1.147     albertel  549: 	return (15,0);
                    550:     }
1.89      albertel  551:     my $sig_lbound;
                    552:     my $sig_ubound;
                    553:     if ($sig eq '') {
                    554: 	$sig_lbound = 0; #SIG_LB_DEFAULT
                    555: 	$sig_ubound =15; #SIG_UB_DEFAULT
                    556:     } else {
                    557: 	($sig_lbound,$sig_ubound) = split(/,/,$sig);
1.145     albertel  558: 	if (!defined($sig_lbound)) {
1.89      albertel  559: 	    $sig_lbound = 0; #SIG_LB_DEFAULT
                    560: 	    $sig_ubound =15; #SIG_UB_DEFAULT
                    561: 	}
1.145     albertel  562: 	if (!defined($sig_ubound)) { $sig_ubound=$sig_lbound; }
1.133     albertel  563:     }
                    564:     if (($sig_ubound<$sig_lbound) ||
                    565: 	($sig_lbound > 15) ||
                    566: 	($sig =~/(\+|-)/ ) ) {
                    567: 	my $errormsg=&mt("Invalid Significant figures detected")." ($sig)";
1.166     albertel  568: 	if ($env{'request.state'} eq 'construct') {
1.133     albertel  569: 	    $errormsg.=
                    570: 		&Apache::loncommon::help_open_topic('Significant_Figures');
                    571: 	}
                    572: 	&Apache::lonxml::error($errormsg);
1.52      albertel  573:     }
1.89      albertel  574:     return ($sig_ubound,$sig_lbound);
1.34      albertel  575: }
                    576: 
                    577: sub start_stringresponse {
1.89      albertel  578:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                    579:     my $result;
1.122     albertel  580:     my $id = &Apache::response::start_response($parstack,$safeeval);
1.89      albertel  581:     if ($target eq 'meta') {
                    582: 	$result=&Apache::response::meta_package_write('stringresponse');
1.122     albertel  583:     } elsif ($target eq 'edit') {
                    584: 	$result.=&Apache::edit::tag_start($target,$token);
                    585: 	$result.=&Apache::edit::text_arg('Answer:','answer',$token);
                    586: 	$result.=&Apache::edit::select_arg('Type:','type',
                    587: 			 [['cs','Case Sensitive'],['ci','Case Insensitive'],
                    588: 			  ['mc','Case Insensitive, Any Order'],
                    589: 			  ['re','Regular Expression']],$token);
1.152     albertel  590: 	$result.=&Apache::edit::text_arg('String to display for answer:',
                    591: 					 'answerdisplay',$token);
1.122     albertel  592: 	$result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
                    593:     } elsif ($target eq 'modified') {
1.146     albertel  594: 	my $constructtag;
                    595: 	$constructtag=&Apache::edit::get_new_args($token,$parstack,
                    596: 						  $safeeval,'answer',
                    597: 						  'type','answerdisplay');
                    598: 	if ($constructtag) {
                    599: 	    $result = &Apache::edit::rebuild_tag($token);
                    600: 	    $result.=&Apache::edit::handle_insert();
                    601: 	}
                    602:     } elsif ($target eq 'web') {
                    603: 	if (  &Apache::response::show_answer() ) {
1.152     albertel  604: 	    my $answer=
                    605: 	       &Apache::lonxml::get_param('answerdisplay',$parstack,$safeeval);
                    606: 	    if (!defined $answer || $answer eq '') {
                    607: 		$answer=
                    608: 		    &Apache::lonxml::get_param('answer',$parstack,$safeeval);
                    609: 	    }
                    610: 	    $Apache::inputtags::answertxt{$id}=$answer;
1.146     albertel  611: 	} 
1.122     albertel  612:     } elsif ($target eq 'answer' || $target eq 'grade') {
                    613: 	&Apache::response::reset_params();
1.89      albertel  614:     }
                    615:     return $result;
1.34      albertel  616: }
                    617: 
                    618: sub end_stringresponse {
1.122     albertel  619:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                    620:     my $increment=1;
                    621:     my $result = '';
                    622:     my $part=$Apache::inputtags::part;
                    623:     my $id=$Apache::inputtags::response[-1];
                    624:     my $answer=&Apache::lonxml::get_param('answer',$parstack,$safeeval);
                    625:     my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval);
1.129     www       626:     my $answerdisplay=&Apache::lonxml::get_param('answerdisplay',$parstack,$safeeval);
1.122     albertel  627:     &Apache::lonxml::debug("current $answer ".$token->[2]);
                    628:     if (!$Apache::lonxml::default_homework_loaded) {
                    629: 	&Apache::lonxml::default_homework_load($safeeval);
                    630:     }
1.162     albertel  631:     if ( $target eq 'grade' && &Apache::response::submitted() ) {
1.140     albertel  632: 	&Apache::response::setup_params('stringresponse',$safeeval);
1.122     albertel  633: 	$safeeval->share_from('capa',['&caparesponse_capa_check_answer']);
                    634: 	if ($Apache::lonhomework::type eq 'exam' ||
1.162     albertel  635: 	    &Apache::response::submitted('scantron')) {
1.122     albertel  636: 	    $increment=&Apache::response::scored_response($part,$id);
                    637: 	} else {
                    638: 	    my $response = &Apache::response::getresponse();
                    639: 	    if ( $response =~ /[^\s]/) {
                    640: 		my %previous = &Apache::response::check_for_previous($response,
                    641: 								    $part,$id);
                    642: 		&Apache::lonxml::debug("submitted a $response<br>\n");
                    643: 		&Apache::lonxml::debug($$parstack[-1] . "\n<br>");
                    644: 		$Apache::lonhomework::results{"resource.$part.$id.submission"}=
                    645: 		    $response;
1.142     albertel  646: 		my ($ad,$msg);
1.122     albertel  647: 		if ($type eq 're' ) { 
                    648: 		    # if the RE wasn't in a var it likely got munged,
                    649:                     # thus grab it from the var directly
                    650: #		    my $testans=$token->[2]->{'answer'};
                    651: #		    if ($testans !~ m/^\s*\$/) {
                    652: #			$answer=$token->[2]->{'answer'};
                    653: #		    }
1.143     albertel  654: 		    ${$safeeval->varglob('LONCAPA::response')}=$response;
                    655: 		    $result = &Apache::run::run('return $LONCAPA::response=~m'.$answer,$safeeval);
1.122     albertel  656: 		    &Apache::lonxml::debug("current $response");
                    657: 		    &Apache::lonxml::debug("current $answer");
                    658: 		    $ad = ($result) ? 'APPROX_ANS' : 'INCORRECT';
                    659: 		} else {
1.143     albertel  660: 		    my $args_ref= 
                    661: 			\%{$safeeval->varglob('LONCAPA::CAPAresponse_args')};
                    662: 		
                    663: 		    $$args_ref{'response'}=$response;
1.122     albertel  664: 		    &Apache::lonxml::debug("current $response");
1.143     albertel  665: 		    $$args_ref{'type'}=
                    666: 			&Apache::lonxml::get_param('type',$parstack,$safeeval);
1.122     albertel  667: 		    foreach my $key (keys(%Apache::inputtags::params)) {
1.143     albertel  668: 			$$args_ref{$key}=$Apache::inputtags::params{$key};
1.122     albertel  669: 		    }
                    670: 		    &Apache::lonxml::debug('answer is'.join(':',$answer));
1.143     albertel  671: 		    @{$safeeval->varglob('LONCAPA::CAPAresponse_answer')}=($answer);
                    672: 		    ($result, my @msgs)=&Apache::run::run("&caparesponse_check_list()",$safeeval);
1.142     albertel  673: 		    &Apache::lonxml::debug('msgs are'.join(':',@msgs));
                    674: 		    my ($awards)=split(/:/,$result);
                    675: 		    my (@awards) = split(/,/,$awards);
                    676: 		    ($ad,$msg) = &Apache::inputtags::finalizeawards(\@awards,\@msgs);
1.122     albertel  677: 		    &Apache::lonxml::debug("\n<br>result:$result:$Apache::lonxml::curdepth<br>\n");
                    678: 		}
1.163     albertel  679: 		if ($Apache::lonhomework::type eq 'survey' &&
                    680: 		    ($ad eq 'INCORRECT' || $ad eq 'APPROX_ANS' ||
                    681: 		     $ad eq 'EXACT_ANS')) {
                    682: 		    $ad='SUBMITTED';
                    683: 		}
1.122     albertel  684: 		&Apache::response::handle_previous(\%previous,$ad);
                    685: 		$Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=$ad;
1.142     albertel  686: 		$Apache::lonhomework::results{"resource.$part.$id.awardmsg"}=$msg;
1.122     albertel  687: 	    }
                    688: 	}
                    689:     } elsif ($target eq 'web' || $target eq 'tex') {
                    690: 	my $award = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
                    691: 	my $status = $Apache::inputtags::status['-1'];
                    692: 	if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
                    693: 	    $result.='\fbox{\fbox{\parbox{\textwidth-5mm}{\strut\\\\\strut\\\\\strut\\\\\strut\\\\}}}';
                    694: 	    $increment = &Apache::response::repetition();
                    695: 	    $result.='\begin{enumerate}';
                    696: 	    for (my $i=0;$i<$increment;$i++) {
                    697: 		$result.='\item[\textbf{'.($Apache::lonxml::counter+$i).
                    698: 		    '}.]\textit{Leave blank on scoring form}\vskip 0 mm';
                    699: 	    }
                    700: 	    $result.= '\end{enumerate}';
                    701: 	}
                    702:     } elsif ($target eq 'answer' || $target eq 'analyze') {
                    703: 	if ($target eq 'analyze') {
                    704: 	    push (@{ $Apache::lonhomework::analyze{"parts"} },"$part.$id");
1.125     albertel  705: 	    $Apache::lonhomework::analyze{"$part.$id.type"} = 'stringresponse';
1.154     albertel  706: 	    &Apache::response::check_if_computed($token,$parstack,$safeeval,
                    707: 						 'answer');
1.122     albertel  708: 	}
1.140     albertel  709: 	&Apache::response::setup_params('stringresponse',$safeeval);
1.122     albertel  710: 	if ($target eq 'answer') {
1.125     albertel  711: 	    $result.=&Apache::response::answer_header('stringresponse');
1.122     albertel  712: 	}
                    713: #	foreach my $ans (@answers) {
                    714: 	    if ($target eq 'answer') {
1.125     albertel  715: 		$result.=&Apache::response::answer_part('stringresponse',$answer);
1.122     albertel  716: 	    } elsif ($target eq 'analyze') {
                    717: 		push (@{ $Apache::lonhomework::analyze{"$part.$id.answer"} },
                    718: 		      $answer);
                    719: 	    }
                    720: #	}
                    721: 	my $string='Case Insensitive';
                    722: 	if ($type eq 'mc') {
                    723: 	    $string='Multiple Choice';
                    724: 	} elsif ($type eq 'cs') {
                    725: 	    $string='Case Sensitive';
                    726: 	} elsif ($type eq 'ci') {
                    727: 	    $string='Case Insensitive';
                    728: 	} elsif ($type eq 're') {
                    729: 	    $string='Regular Expression';
                    730: 	}
                    731: 	if ($target eq 'answer') {
1.166     albertel  732: 	    if ($env{'form.answer_output_mode'} eq 'tex') {
1.125     albertel  733: 		$result.=&Apache::response::answer_part('stringresponse',
1.122     albertel  734: 							"$string");
                    735: 	    } else {
1.125     albertel  736: 		$result.=&Apache::response::answer_part('stringresponse',
1.122     albertel  737: 							"<b>$string</b>");
                    738: 	    }
                    739: 	} elsif ($target eq 'analyze') {
                    740: 	    push (@{$Apache::lonhomework::analyze{"$part.$id.str_type"}},
                    741: 		  $type);
                    742: 	}
                    743: 	if ($target eq 'answer') {
1.125     albertel  744: 	    $result.=&Apache::response::answer_footer('stringresponse');
1.122     albertel  745: 	}
                    746:     } elsif ($target eq 'edit') {
                    747: 	$result.='</td></tr>'.&Apache::edit::end_table;
                    748:     }
                    749:     if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' || 
                    750: 	$target eq 'tex' || $target eq 'analyze') {
                    751: 	&Apache::lonxml::increment_counter($increment);
                    752:     }
                    753:     &Apache::response::end_response;
                    754:     return $result;
1.44      albertel  755: }
                    756: 
                    757: sub start_formularesponse {
1.89      albertel  758:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                    759:     my $result;
                    760:     if ($target eq 'meta') {
1.104     bowersj2  761: 	&Apache::response::start_response($parstack,$safeeval);
1.89      albertel  762: 	$result=&Apache::response::meta_package_write('formularesponse');
1.104     bowersj2  763: 	&Apache::response::end_response();
1.89      albertel  764:     } else {
                    765: 	$result.=&start_numericalresponse(@_);
                    766:     }
                    767:     return $result;
1.44      albertel  768: }
                    769: 
                    770: sub end_formularesponse {
1.89      albertel  771:     return end_numericalresponse(@_);
1.3       albertel  772: }
                    773: 
1.1       albertel  774: 1;
1.3       albertel  775: __END__
1.89      albertel  776: 

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