Annotation of loncom/homework/hint.pm, revision 1.54

1.21      albertel    1: # The LearningOnline Network with CAPA 
                      2: # implements the tags that control the hints
                      3: #
1.54    ! albertel    4: # $Id: hint.pm,v 1.53 2004/03/16 22:24:31 albertel Exp $
1.21      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: #
1.33      albertel   10: # LON-CAPA me&aree software; you can redistribute it and/or modify
1.21      albertel   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: #
                     28: 
1.1       albertel   29: package Apache::hinttags; 
                     30: 
                     31: use strict;
1.53      albertel   32: use Apache::lonnet();
1.6       albertel   33: use capa;
1.53      albertel   34: use Apache::lonlocal;
1.1       albertel   35: 
1.25      harris41   36: BEGIN {
1.39      albertel   37:     &Apache::lonxml::register('Apache::hinttags',('hintgroup','hintpart','numericalhint','stringhint','formulahint','optionhint','radiobuttonhint'));
1.1       albertel   38: }
                     39: 
1.2       albertel   40: 
1.15      albertel   41: @Apache::hint::which=();
1.1       albertel   42: sub start_hintgroup {
1.39      albertel   43:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                     44:     my $skiptoend='0';
                     45:     my $result;
                     46: 
                     47:     if ($target eq 'web') {
                     48: 	my $id=$Apache::inputtags::part;
                     49: 	my $numtries=$Apache::lonhomework::history{"resource.$id.tries"};
                     50: 	if ( $numtries eq '') { $numtries = 0; }
1.52      albertel   51: 	my $hinttries=&Apache::response::get_response_param($id,"hinttries",1);
1.39      albertel   52: 	&Apache::lonxml::debug("found :$id:$numtries:$hinttries:");
1.53      albertel   53: 	my $gradestatus=
                     54: 	    $Apache::lonhomework::history{"resource.$id.solved"};
                     55: 	my $showoncorrect=lc(&Apache::lonxml::get_param('showoncorrect',$parstack,$safeeval));	
                     56: 	&Apache::lonxml::debug("onc orrect $showoncorrect, $gradestatus");
                     57: 	if ( ($showoncorrect ne 'yes' && $gradestatus =~ /^correct/) ||
                     58: 	     ( $numtries < $hinttries) ) {
                     59: 	    &Apache::lonxml::debug("Grabbin all");
1.39      albertel   60: 	    &Apache::lonxml::get_all_text("/hintgroup",$parser);
                     61: 	}
1.40      albertel   62: 	&Apache::lonxml::startredirection;
1.39      albertel   63:     } elsif ($target eq 'tex') {
                     64: 	$result .= '\keephidden{';
1.53      albertel   65:     } elsif ($target eq 'edit') {
                     66: 	$result.=&Apache::edit::tag_start($target,$token);
                     67: 	$result.=&Apache::edit::select_arg('Show hint when problem Correct:','showoncorrect',[['no',&mt('No')],['yes',&mt('Yes')]]);
                     68: 	$result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
                     69:     } elsif ($target eq 'modified') {
                     70: 	my $constructtag=&Apache::edit::get_new_args($token,$parstack,$safeeval,'showoncorrect');
                     71:        if ($constructtag) {
                     72:            $result =&Apache::edit::rebuild_tag($token);
                     73:            $result.=&Apache::edit::handle_insert();
                     74:        }
1.20      albertel   75:     }
1.39      albertel   76:     @Apache::hint::which=();
                     77:     return $result;
1.1       albertel   78: }
                     79: 
                     80: sub end_hintgroup {
1.39      albertel   81:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                     82:     my $result;
1.20      albertel   83: 
1.39      albertel   84:     if ($target eq 'web') {
                     85: 	my $id=$Apache::inputtags::part;
                     86: 	my $numtries=$Apache::lonhomework::history{"resource.$id.tries"};
                     87: 	if ( $numtries eq '') { $numtries = 0; }
1.52      albertel   88: 	my $hinttries=&Apache::response::get_response_param($id,"hinttries",1);
1.39      albertel   89: 	&Apache::lonxml::debug("found :$id:$numtries:$hinttries:");
1.40      albertel   90: 	my $hinttext=&Apache::lonxml::endredirection;
                     91: 	if ($Apache::lonhomework::type ne 'exam' &&
1.41      albertel   92: 	    $numtries >= $hinttries && $hinttext =~/\S/) {
1.40      albertel   93: 	    $result='<table bgcolor="#dddddd"><tr><td>'.
                     94: 		$hinttext.'</td></tr></table>';
1.38      albertel   95: 	}
1.39      albertel   96:     } elsif ($target eq 'edit') {
                     97: 	$result.=&Apache::edit::end_table();
                     98:     } elsif ($target eq 'tex') {
                     99: 	$result .= '}';
1.19      albertel  100:     }
1.39      albertel  101:     @Apache::hint::which=();
                    102:     return $result;
1.3       albertel  103: }
                    104: 
                    105: sub start_numericalhint {
1.39      albertel  106:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                    107:     #do everything in end, so intervening <responseparams> work
                    108:     &Apache::response::start_hintresponse($parstack,$safeeval);
                    109:     my $result;
                    110:     if ($target eq 'edit') {
                    111: 	$result.=&Apache::edit::tag_start($target,$token);
                    112: 	$result.=&Apache::edit::text_arg('Name:','name',$token);
                    113: 	$result.=&Apache::edit::text_arg('Answer:','answer',$token);
                    114: 	if ($token->[1] eq 'numericalhint') {
                    115: 	    $result.=&Apache::edit::text_arg('Unit:','unit',$token,5).
                    116: 		&Apache::loncommon::help_open_topic('Physical_Units');
                    117: 	    $result.=&Apache::edit::text_arg('Format:','format',$token,4).
                    118: 		&Apache::loncommon::help_open_topic('Numerical_Response_Format');
                    119: 	} elsif ($token->[1] eq 'stringhint') {
1.44      albertel  120: 	    $result.=&Apache::edit::select_arg('Type:','type',
                    121: 			    [['cs','Case Sensitive'],['ci','Case Insensitive'],
                    122: 			     ['mc','Case Insensitive, Any Order']],$token);
1.39      albertel  123: 	} elsif ($token->[1] eq 'formulahint') {
                    124: 	    $result.=&Apache::edit::text_arg('Sample Points:','samples',$token,40);
                    125: 	}
                    126: 	$result.=&Apache::edit::end_row();
                    127: 	$result.=&Apache::edit::start_spanning_row();
                    128:     } elsif ($target eq 'modified') {
                    129: 	my $constructtag;
                    130: 	if ($token->[1] eq 'numericalhint') {
                    131: 	    $constructtag=&Apache::edit::get_new_args($token,$parstack,
                    132: 						     $safeeval,'name',
                    133: 						     'answer','unit','format');
                    134: 	} elsif ($token->[1] eq 'stringhint') {
                    135: 	    $constructtag=&Apache::edit::get_new_args($token,$parstack,
                    136: 						     $safeeval,'name','answer',
                    137: 						     'type');
                    138: 	} elsif ($token->[1] eq 'formulahint') {
                    139: 	    $constructtag=&Apache::edit::get_new_args($token,$parstack,
                    140: 						     $safeeval,'name','answer',
                    141: 						     'samples');
                    142: 	}
                    143: 	if ($constructtag) {
                    144: 	    $result  = &Apache::edit::rebuild_tag($token);
                    145: 	    $result .= &Apache::edit::handle_insert();
                    146: 	}
                    147:     } elsif ($target eq 'web') {
                    148: 	&Apache::response::reset_params();
1.28      albertel  149:     }
1.39      albertel  150:     return $result;
1.3       albertel  151: }
                    152: 
                    153: sub end_numericalhint {
1.39      albertel  154:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                    155:     my $result;
                    156:     if ($target eq 'web') {
                    157: 	if (!$Apache::lonxml::default_homework_loaded) {
                    158: 	    &Apache::lonxml::default_homework_load($safeeval);
                    159: 	}
                    160: 	$safeeval->share_from('capa',['&caparesponse_capa_check_answer']);
                    161: 	my $name= &Apache::lonxml::get_param('name',$parstack,$safeeval);
1.48      albertel  162: 	&Apache::response::setup_params('numericalhint',$safeeval);
1.39      albertel  163: 	my $partid=$Apache::inputtags::part;
                    164: 	my $id=$Apache::inputtags::response['-1'];
                    165: 	#id submissions occured under
                    166: 	my $submitid=$Apache::inputtags::response['-2'];
                    167: 	my $response = $Apache::lonhomework::history{
1.18      albertel  168: 			    "resource.$partid.$submitid.submission"};
1.39      albertel  169: 	&Apache::lonxml::debug("hintgroup is using $response<br />\n");
1.54    ! albertel  170: 	my $hideunit=&Apache::response::get_response_param($partid.'_'.$submitid,'turnoffunit');
1.51      albertel  171: 	my $args_ref= \%{$safeeval->varglob('LONCAPA::CAPAresponse_args')};
                    172: 	$$args_ref{'response'}=$response;
1.39      albertel  173: 	#need to get all possible parms
1.51      albertel  174: 	foreach my $arg ('type','tol','sig','ans_fmt','unit','calc',
                    175: 			 'samples') {
                    176: 	    $$args_ref{$arg}=
                    177: 		&Apache::lonxml::get_param($arg,$parstack,$safeeval);
                    178: 	}
1.39      albertel  179: 	foreach my $key (keys(%Apache::inputtags::params)) {
1.51      albertel  180: 	    $$args_ref{$key}=$Apache::inputtags::params{$key};
1.43      albertel  181: 	}
1.51      albertel  182: 	if (lc($hideunit) eq "yes") { delete($$args_ref{'unit'}); }
1.43      albertel  183: 	if ($$tagstack[-1] eq 'formulahint') {
1.51      albertel  184: 	    $$args_ref{'type'}='fml';
1.43      albertel  185: 	} elsif ($$tagstack[-1] eq 'numericalhint') {
1.51      albertel  186: 	    $$args_ref{'type'}='float';
1.39      albertel  187: 	}
1.45      albertel  188: 	my @answer=&Apache::lonxml::get_param_var('answer',$parstack,$safeeval);
                    189: 	&Apache::lonxml::debug('answer is'.join(':',@answer));
1.51      albertel  190: 	@{$safeeval->varglob('LONCAPA::CAPAresponse_answer')}=@answer;
1.45      albertel  191: 		
1.51      albertel  192: 	($result,my @msgs) = &Apache::run::run("&caparesponse_check_list()",
                    193: 						$safeeval);
1.50      albertel  194: 	&Apache::lonxml::debug('msgs are'.join(':',@msgs));
1.51      albertel  195: 	&Apache::lonxml::debug("result:$result:$Apache::lonxml::curdepth");
1.50      albertel  196: 	my ($awards)=split(/:/,$result);
                    197: 	my (@awards) = split(/,/,$awards);
                    198: 	my ($ad, $msg) = &Apache::inputtags::finalizeawards(\@awards,\@msgs);
1.39      albertel  199: 	if ($ad eq 'EXACT_ANS' || $ad eq 'APPROX_ANS') { push (@Apache::hint::which,$name); }
                    200: 	$result='';
                    201:     } elsif ($target eq 'meta') {
                    202: 	$result=&Apache::response::meta_package_write($token->[1]);
                    203:     } elsif ($target eq 'edit') {
                    204: 	$result.='</td></tr>'.&Apache::edit::end_table;
1.18      albertel  205:     }
1.39      albertel  206:     &Apache::response::end_hintresponse();
                    207:     return $result;
1.28      albertel  208: }
                    209: 
1.51      albertel  210: sub start_formulahint {
1.35      albertel  211:     return &start_numericalhint(@_);
1.28      albertel  212: }
                    213: 
1.51      albertel  214: sub end_formulahint {
1.35      albertel  215:     return &end_numericalhint(@_);
1.28      albertel  216: }
                    217: 
1.51      albertel  218: sub start_stringhint {
                    219:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                    220:     #do everything in end, so intervening <responseparams> work
                    221:     &Apache::response::start_hintresponse($parstack,$safeeval);
                    222:     my $result;
                    223:     if ($target eq 'edit') {
                    224: 	$result.=&Apache::edit::tag_start($target,$token);
                    225: 	$result.=&Apache::edit::text_arg('Name:','name',$token);
                    226: 	$result.=&Apache::edit::text_arg('Answer:','answer',$token);
                    227: 	$result.=&Apache::edit::select_arg('Type:','type',
                    228: 			 [['cs','Case Sensitive'],['ci','Case Insensitive'],
                    229: 			  ['mc','Case Insensitive, Any Order'],
                    230: 			  ['re','Regular Expression']],$token);
                    231: 	$result.=&Apache::edit::end_row();
                    232: 	$result.=&Apache::edit::start_spanning_row();
                    233:     } elsif ($target eq 'modified') {
                    234: 	my $constructtag;
                    235: 	$constructtag=&Apache::edit::get_new_args($token,$parstack,
                    236: 						  $safeeval,'name','answer',
                    237: 						  'type');
                    238: 	$result  = &Apache::edit::rebuild_tag($token);
                    239: 	$result .= &Apache::edit::handle_insert();
                    240:     } elsif ($target eq 'web') {
                    241: 	&Apache::response::reset_params();
                    242:     }
                    243:     return $result;
1.28      albertel  244: }
                    245: 
1.51      albertel  246: sub end_stringhint {
                    247:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                    248:     my $result;
                    249:     if ($target eq 'web') {
                    250: 	if (!$Apache::lonxml::default_homework_loaded) {
                    251: 	    &Apache::lonxml::default_homework_load($safeeval);
                    252: 	}
                    253: 	my $answer=&Apache::lonxml::get_param('answer',$parstack,$safeeval);
                    254: 	$safeeval->share_from('capa',['&caparesponse_capa_check_answer']);
                    255: 	my $name= &Apache::lonxml::get_param('name',$parstack,$safeeval);
                    256: 	&Apache::response::setup_params('stringhint',$safeeval);
                    257: 	my $partid=$Apache::inputtags::part;
                    258: 	my $id=$Apache::inputtags::response['-1'];
                    259: 	#id submissions occured under
                    260: 	my $submitid=$Apache::inputtags::response['-2'];
                    261: 	my $response = $Apache::lonhomework::history{
                    262: 			    "resource.$partid.$submitid.submission"};
                    263: 	&Apache::lonxml::debug("hintgroup is using $response<br />\n");
                    264: 	my $args_ref= \%{$safeeval->varglob('LONCAPA::CAPAresponse_args')};
                    265: 	$$args_ref{'response'}=$response;
                    266: 	my $type=$$args_ref{'type'}=&Apache::lonxml::get_param('type',$parstack,$safeeval);
                    267: 	my ($ad,$msg);
                    268: 	if ($type eq 're' ) {
                    269: 	    ${$safeeval->varglob('LONCAPA::response')}=$response;
                    270: 	    $result = &Apache::run::run('return $LONCAPA::response=~m'.$answer,$safeeval);
                    271: 	    &Apache::lonxml::debug("current $response");
                    272: 	    &Apache::lonxml::debug("current $answer");
                    273: 	    $ad = ($result) ? 'APPROX_ANS' : 'INCORRECT';
                    274: 	} else { 
                    275: 	    foreach my $key (keys(%Apache::inputtags::params)) {
                    276: 		$$args_ref{$key}=$Apache::inputtags::params{$key};
                    277: 	    }
                    278: 	    &Apache::lonxml::debug('answer is'.$answer);
                    279: 	    @{$safeeval->varglob('LONCAPA::CAPAresponse_answer')}=($answer);
                    280: 	    
                    281: 	    ($result,my @msgs)=&Apache::run::run("&caparesponse_check_list()",
                    282: 						   $safeeval);
                    283: 	    &Apache::lonxml::debug('msgs are'.join(':',@msgs));
                    284: 	    &Apache::lonxml::debug("result:$result:$Apache::lonxml::curdepth");
                    285: 	    my ($awards)=split(/:/,$result);
                    286: 	    my (@awards) = split(/,/,$awards);
                    287: 	    ($ad, $msg) = &Apache::inputtags::finalizeawards(\@awards,\@msgs);
                    288: 	}
                    289: 	if ($ad eq 'EXACT_ANS' || $ad eq 'APPROX_ANS') { 
                    290: 	    push (@Apache::hint::which,$name);
                    291: 	}
                    292: 	$result='';
                    293:     } elsif ($target eq 'meta') {
                    294: 	$result=&Apache::response::meta_package_write($token->[1]);
                    295:     } elsif ($target eq 'edit') {
                    296: 	$result.='</td></tr>'.&Apache::edit::end_table;
                    297:     }
                    298:     &Apache::response::end_hintresponse();
                    299:     return $result;
1.1       albertel  300: }
                    301: 
1.2       albertel  302: # a part shows if it is on, if no specific parts are on, then default shows
1.1       albertel  303: sub start_hintpart {
1.39      albertel  304:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.15      albertel  305: 
1.39      albertel  306:     my $show ='0';
                    307:     my $result = '';
                    308:     if ($target eq 'web') {
                    309: 	my $on= &Apache::lonxml::get_param('on',$parstack,$safeeval);
                    310: 	&Apache::lonxml::debug("hintpart sees $on and ,$#Apache::hint::which");
                    311: 	if ( $on eq 'default' && $#Apache::hint::which == '-1') {
                    312: 	    $show=1;
                    313: 	} else {
                    314: 	    my $which;
                    315: 	    foreach $which (@Apache::hint::which) { if ($which eq $on) { $show = 1; last } }
                    316: 	}
                    317: 	if (!$show) {
                    318: 	    &Apache::lonxml::get_all_text("/hintpart",$parser);
                    319: 	}
                    320:     } elsif ($target eq 'grade') {
                    321: 	&Apache::lonxml::get_all_text("/hintpart",$parser);
                    322:     } elsif ($target eq 'edit') {
                    323: 	$result.= &Apache::edit::tag_start($target,$token);
                    324: 	$result.= &Apache::edit::text_arg('On:','on',$token);
                    325: 	$result.= &Apache::edit::end_row();
                    326: 	$result.= &Apache::edit::start_spanning_row();
                    327:     } elsif ($target eq 'modified') {
                    328: 	my $constructtag=&Apache::edit::get_new_args($token,$parstack,
                    329: 						     $safeeval,'on');
                    330: 	if ($constructtag) {
                    331: 	    $result = &Apache::edit::rebuild_tag($token);
                    332: 	    $result.=&Apache::edit::handle_insert();
                    333: 	}
1.20      albertel  334:     }
1.39      albertel  335:     return $result;
1.1       albertel  336: }
                    337: 
                    338: sub end_hintpart {
1.29      albertel  339:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
                    340:     my $result;
                    341:     if ($target eq 'edit') { $result.=&Apache::edit::end_table; }
                    342:     return $result;
                    343: }
                    344: 
                    345: sub start_optionhint {
                    346:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
                    347:     my $result;
1.30      albertel  348:     &Apache::response::start_hintresponse($parstack,$safeeval);
                    349:     if ($target eq 'edit') {
                    350: 	$result.=&Apache::edit::tag_start($target,$token);
                    351: 	$result.=&Apache::edit::text_arg('Name:','name',$token);
                    352: 	$result.=&Apache::edit::text_arg('Answer:','answer',$token,40);
                    353: 	$result.=&Apache::edit::text_arg('Concept:','concept',$token,50);
                    354:     } elsif ($target eq 'modified') {
                    355: 	my $constructtag=&Apache::edit::get_new_args($token,$parstack,
                    356: 						     $safeeval,'name',
                    357: 						     'answer','concept');
                    358: 	if ($constructtag) {
                    359: 	    $result  = &Apache::edit::rebuild_tag($token);
                    360: 	    $result .= &Apache::edit::handle_insert();
                    361: 	}
                    362:     } elsif ($target eq 'meta') {
                    363: 	$result=&Apache::response::meta_package_write('numericalhint');
                    364:     }
1.29      albertel  365:     return $result;
                    366: }
                    367: 
                    368: sub end_optionhint {
                    369:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
                    370:     my $result;
1.30      albertel  371:     if ($target eq 'web') {
                    372: 	my ($foilmatch,$conceptmatch)=(-1,-1);
                    373: 	my $name= &Apache::lonxml::get_param('name',$parstack,$safeeval);
                    374: 	my $partid=$Apache::inputtags::part;
                    375: 	#id submissions occured under
                    376: 	my $submitid=$Apache::inputtags::response['-2'];
                    377: 	my $part_id="$partid.$submitid";
                    378: 	my %answer;
                    379: 	my $answer=&Apache::lonxml::get_param('answer',$parstack,$safeeval);
                    380: 	if ($answer) {
                    381: 	    eval('%answer ='.$answer);
                    382: 	    &Apache::lonhomework::showhash(%answer);
                    383: 	    my $response = $Apache::lonhomework::history{
                    384: 				            "resource.$part_id.submission"};
                    385: 	    my %response=&Apache::lonnet::str2hash($response);
                    386: 	    &Apache::lonhomework::showhash(%response);
                    387: 	    foreach my $foil (keys(%answer)) {
                    388: 		$foilmatch=1;
                    389: 		if ($answer{$foil} ne $response{$foil}) {$foilmatch=0;last;}
                    390: 	    }
                    391: 	}
                    392: 	my %concept;
                    393: 	my $constr=&Apache::lonxml::get_param('concept',$parstack,$safeeval);
                    394: 	if ( $constr ) { eval('%concept ='.$constr);	}
                    395: 	my $response = $Apache::lonhomework::history{
                    396: 					"resource.$part_id.submissiongrading"};
                    397: 	my %response=&Apache::lonnet::str2hash($response);
                    398: 	foreach my $concept (keys(%concept)) {
                    399: 	    my $compare;
                    400: 	    if ($concept{$concept} eq 'correct') {$compare=1}else{$compare=0}
                    401: 	    $conceptmatch=1;
                    402: 	    if (ref($Apache::hint::option{"$part_id.concepts"})) {
                    403: 		foreach my $foil (@{ $Apache::hint::option{"$part_id.concept.$concept"} }) {
                    404: 		    &Apache::lonxml::debug("compare -$foil- -$response{$foil}-$compare-");
                    405: 		    if ( exists($response{$foil}) && 
                    406: 			 $response{$foil} ne $compare) {$conceptmatch=0;last;}
                    407: 		}
                    408: 	    } else {
                    409: 		$conceptmatch=0;
                    410: 	    }
                    411: 	    if ($conceptmatch eq '0') { last; }
                    412: 	}
                    413: 	if ( ($conceptmatch eq '-1' || $conceptmatch eq '1') &&
                    414: 	     ($foilmatch    eq '-1' || $foilmatch    eq '1') ) {
                    415: 	    push(@Apache::hint::which,$name);
                    416: 	}
                    417:     } elsif ($target eq 'edit') { $result.=&Apache::edit::end_table; }
1.29      albertel  418:     if ($target eq 'edit') { $result.=&Apache::edit::end_table; }
1.30      albertel  419:     &Apache::response::end_hintresponse();
1.29      albertel  420:     return $result;
                    421: }
                    422: 
                    423: sub start_radiobuttonhint {
                    424:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
                    425:     my $result;
                    426:     &Apache::response::start_hintresponse($parstack,$safeeval);
                    427:     if ($target eq 'edit') {
                    428: 	$result.=&Apache::edit::tag_start($target,$token);
                    429: 	$result.=&Apache::edit::text_arg('Name:','name',$token);
                    430: 	$result.=&Apache::edit::text_arg('Answer:','answer',$token);
                    431:     } elsif ($target eq 'modified') {
                    432: 	my $constructtag=&Apache::edit::get_new_args($token,$parstack,
                    433: 						     $safeeval,'name',
                    434: 						     'answer');
                    435: 	if ($constructtag) {
                    436: 	    $result  = &Apache::edit::rebuild_tag($token);
                    437: 	    $result .= &Apache::edit::handle_insert();
                    438: 	}
                    439:     } elsif ($target eq 'meta') {
                    440: 	$result=&Apache::response::meta_package_write('numericalhint');
                    441:     }
                    442:     return $result;
1.1       albertel  443: }
                    444: 
1.31      albertel  445: sub end_radiobuttonhint {
1.29      albertel  446:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
                    447:     my $result;
                    448:     if ($target eq 'web') {
                    449: 	my $name= &Apache::lonxml::get_param('name',$parstack,$safeeval);
                    450: 	my @answer;
                    451: 	my $answer=&Apache::lonxml::get_param('answer',$parstack,$safeeval);
                    452: 	eval('@answer ='.$answer);
                    453: 	my $partid=$Apache::inputtags::part;
                    454: 	#id submissions occured under
                    455: 	my $submitid=$Apache::inputtags::response['-2'];
                    456: 	my $part_id="$partid.$submitid";
                    457: 	my $response = $Apache::lonhomework::history{
                    458: 			    "resource.$part_id.submission"};
                    459: 	($response)=&Apache::lonnet::str2hash($response);
1.42      albertel  460: 	&Apache::lonxml::debug("response is $response");
                    461: 	
                    462: 	if ($answer[0] eq 'foil') {
                    463: 	    shift(@answer);
                    464: 	    foreach my $answer (@answer) {
                    465: 		if ($response eq $answer) {
                    466: 		    push (@Apache::hint::which,$name);
                    467: 		    last;
                    468: 		}
                    469: 	    }
1.29      albertel  470: 	} elsif ($answer[0] eq 'concept') {
1.42      albertel  471: 	    shift(@answer);
                    472: 	    foreach my $answer (@answer) {
                    473: 		if (ref($Apache::hint::radiobutton{"$part_id.concept.".$answer})) {
                    474: 		    my @names=@{ $Apache::hint::radiobutton{"$part_id.concept.".$answer} };
                    475: 		    if (grep(/^\Q$response\E$/,@names)) {
                    476: 			push(@Apache::hint::which,$name);
                    477: 			last;
                    478: 		    }
1.29      albertel  479: 		}
                    480: 	    }
                    481: 	}
                    482:     } elsif ($target eq 'edit') { $result.=&Apache::edit::end_table; }
                    483:     &Apache::response::end_hintresponse();
                    484:     return $result;
                    485: }
1.1       albertel  486: 1;
                    487: __END__

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