--- loncom/homework/hint.pm 2001/03/31 00:35:17 1.9 +++ loncom/homework/hint.pm 2009/04/17 01:00:15 1.75 @@ -1,116 +1,714 @@ +# The LearningOnline Network with CAPA +# implements the tags that control the hints +# +# $Id: hint.pm,v 1.75 2009/04/17 01:00:15 www Exp $ +# +# Copyright Michigan State University Board of Trustees +# +# This file is part of the LearningOnline Network with CAPA (LON-CAPA). +# +# LON-CAPA me&aree software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2 of the License, or +# (at your option) any later version. +# +# LON-CAPA is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with LON-CAPA; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA +# +# /home/httpd/html/adm/gpl.txt +# +# http://www.lon-capa.org/ +# + + + package Apache::hinttags; use strict; -use Apache::lonnet; +use Apache::lonnet(); use capa; +use Apache::caparesponse(); +use Apache::lonmaxima(); +use Apache::lonr(); +use Apache::response(); +use Apache::lonlocal; +use Storable qw(dclone); -sub BEGIN { - &Apache::lonxml::register('Apache::hinttags',('hintgroup','hintpart','numericalhint')); +BEGIN { + &Apache::lonxml::register('Apache::hinttags',('hintgroup','hintpart','numericalhint','stringhint','formulahint','optionhint','radiobuttonhint','mathhint','customhint')); } @Apache::hint::which=(); sub start_hintgroup { - my ($target,$token,$parstack,$parser,$safeeval,$style)=@_; - my $skiptoend='0'; - my $result; - - if ($target eq 'web' || $target eq 'grade') { - my $id=$Apache::inputtags::part; - my $numtries=$Apache::lonhomework::history{"resource.$id.tries"}; - if ( $numtries eq '') { $numtries = 0; } - my $hinttries=&Apache::lonnet::EXT("resource.$id.hinttries"); - if ( $hinttries eq '') { $hinttries = 1; } - &Apache::lonxml::debug("found :$id:$numtries:$hinttries:"); - if ( $numtries <= $hinttries ) { - $skiptoend='1'; - } else { - if ($target eq 'web') {$result='
';} - } - } - if ($skiptoend) { - &Apache::lonxml::get_all_text("/hintgroup",$$parser[$#$parser]); - } - @Apache::hint::which=(); - return $result; + my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; + my $skiptoend='0'; + my $result; + + if ($target eq 'web') { + my $id=$Apache::inputtags::part; + my $numtries=$Apache::lonhomework::history{"resource.$id.tries"}; + if ( $numtries eq '') { $numtries = 0; } + my $hinttries=&Apache::response::get_response_param($id,"hinttries",1); + &Apache::lonxml::debug("found :$id:$numtries:$hinttries:"); + my $gradestatus= + $Apache::lonhomework::history{"resource.$id.solved"}; + my $showoncorrect=lc(&Apache::lonxml::get_param('showoncorrect',$parstack,$safeeval)); + &Apache::lonxml::debug("onc orrect $showoncorrect, $gradestatus"); + if ( ($showoncorrect ne 'yes' && &Apache::response::show_answer()) || + ( $numtries < $hinttries) ) { + &Apache::lonxml::debug("Grabbin all"); + &Apache::lonxml::get_all_text("/hintgroup",$parser,$style); + } + &Apache::lonxml::startredirection; + } elsif ($target eq 'tex') { + $result .= '\keephidden{'; + } elsif ($target eq 'edit') { + $result.=&Apache::edit::tag_start($target,$token); + $result.=&Apache::edit::select_arg('Show hint even if problem Correct:','showoncorrect',['no','yes'],$token); + $result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row(); + } elsif ($target eq 'modified') { + my $constructtag=&Apache::edit::get_new_args($token,$parstack,$safeeval,'showoncorrect'); + if ($constructtag) { + $result =&Apache::edit::rebuild_tag($token); + } + } + @Apache::hint::which=(); + return $result; } sub end_hintgroup { - my ($target,$token,$parstack,$parser,$safeeval,$style)=@_; - my $result; + my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; + my $result; - if ($target ne 'meta' || $target ne 'grade') { - my $id=$Apache::inputtags::part; - my $numtries=$Apache::lonhomework::history{"resource.$id.tries"}; - if ( $numtries eq '') { $numtries = 0; } - my $hinttries=&Apache::lonnet::EXT("resource.$id.hinttries"); - if ( $hinttries eq '') { $hinttries = 1; } - &Apache::lonxml::debug("found :$id:$numtries:$hinttries:"); - if ( $numtries >= $hinttries ) { - if ($target eq 'web') {$result='
';} - } - } - @Apache::hint::which=''; - return $result; + if ($target eq 'web') { + my $id=$Apache::inputtags::part; + my $numtries=$Apache::lonhomework::history{"resource.$id.tries"}; + if ( $numtries eq '') { $numtries = 0; } + my $hinttries=&Apache::response::get_response_param($id,"hinttries",1); + &Apache::lonxml::debug("found :$id:$numtries:$hinttries:"); + my $hinttext=&Apache::lonxml::endredirection; + if ($Apache::lonhomework::type ne 'exam' && + $numtries >= $hinttries && $hinttext =~/\S/) { + $result='
'. + $hinttext.'
'; + } + } elsif ($target eq 'edit') { + $result.=&Apache::edit::end_row().&Apache::edit::end_table(); + } elsif ($target eq 'tex') { + $result .= '}'; + } + @Apache::hint::which=(); + return $result; } sub start_numericalhint { - #do everything in end, so intervening work + my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; + #do everything in end, so intervening work + &Apache::response::start_hintresponse($parstack,$safeeval); + &Apache::caparesponse::push_answer(); + my $result; + if ($target eq 'edit') { + $result.=&Apache::edit::tag_start($target,$token); + $result.=&Apache::edit::text_arg('Name:','name',$token); + $result.=&Apache::edit::text_arg('Answer:','answer',$token); + if ($token->[1] eq 'numericalhint') { + $result.=&Apache::edit::text_arg('Unit:','unit',$token,5). + &Apache::loncommon::help_open_topic('Physical_Units'); + $result.=&Apache::edit::text_arg('Format:','format',$token,4). + &Apache::loncommon::help_open_topic('Numerical_Response_Format'); + } elsif ($token->[1] eq 'formulahint') { + $result.=&Apache::edit::text_arg('Sample Points:','samples', + $token,40). + &Apache::loncommon::help_open_topic('Formula_Response_Sampling'); + } + $result.=&Apache::edit::end_row(); + $result.=&Apache::edit::start_spanning_row(); + } elsif ($target eq 'modified') { + my $constructtag; + if ($token->[1] eq 'numericalhint') { + $constructtag=&Apache::edit::get_new_args($token,$parstack, + $safeeval,'name', + 'answer','unit','format'); + } elsif ($token->[1] eq 'formulahint') { + $constructtag=&Apache::edit::get_new_args($token,$parstack, + $safeeval,'name','answer', + 'samples'); + } + if ($constructtag) { + $result = &Apache::edit::rebuild_tag($token); + } + } elsif ($target eq 'web') { + &Apache::response::reset_params(); + } + return $result; } sub end_numericalhint { - my ($target,$token,$parstack,$parser,$safeeval,$style)=@_; - my $result; - if ($target ne 'meta' && $target ne 'grade') { - my $args =''; - $safeeval->share_from('capa',['&caparesponse_capa_check_answer']); - if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; } - my $name = &Apache::run::run("{$args;".'return $name}',$safeeval); - my $response = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.$Apache::inputtags::response['-1'].submission"}; - &Apache::lonxml::debug("hintgroup is using $response
\n"); - my $expression="&caparesponse_check_list('".$response."','". - $$parstack[$#$parstack]. - ';my $tol="'.$Apache::inputtags::params{'tol'}.'"'. - ';my $sig="'.$Apache::inputtags::params{'sig'}.'"'. - "');"; - $result = &Apache::run::run($expression,$safeeval); - &Apache::lonxml::debug("$expression:result:$result:$Apache::lonxml::curdepth"); - my ($awards) = split /:/ , $result; - my ($ad) = &Apache::inputtags::finalizeawards(split /,/ , $awards); - if ($ad eq 'EXACT_ANS' || $ad eq 'APPROX_ANS') { push (@Apache::hint::which,$name); } - $result=''; - } - return $result; + my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; + my $result; + if ($target eq 'web') { + if (!$Apache::lonxml::default_homework_loaded) { + &Apache::lonxml::default_homework_load($safeeval); + } + $safeeval->share_from('capa',['&caparesponse_capa_check_answer']); + my $hint_name= &Apache::lonxml::get_param('name',$parstack,$safeeval); + &Apache::response::setup_params('numericalhint',$safeeval); + + my $partid=$Apache::inputtags::part; + my $id=$Apache::inputtags::hint[-1]; + #id submissions occurred under + my $submitid=$Apache::inputtags::response[-1]; + + my $response = $Apache::lonhomework::history{ + "resource.$partid.$submitid.submission"}; + &Apache::lonxml::debug("hintgroup is using $response
\n"); + + my @args = ('type','tol','sig','ans_fmt','unit','calc','samples'); + my $args_ref = + &Apache::caparesponse::setup_capa_args($safeeval,$parstack, + \@args,$response); + + my $hideunit=&Apache::response::get_response_param($partid.'_'.$submitid,'turnoffunit'); + if (lc($hideunit) eq "yes") { delete($$args_ref{'unit'}); } + + if ($$tagstack[-1] eq 'formulahint') { + if ($$args_ref{'samples'}) { + $$args_ref{'type'}='fml'; + } else { + $$args_ref{'type'}='math'; + } + } elsif ($$tagstack[-1] eq 'numericalhint') { + $$args_ref{'type'}='float'; + } + &Apache::caparesponse::add_in_tag_answer($parstack,$safeeval); + my %answer = &Apache::caparesponse::get_answer(); + my (@final_awards,@final_msgs,@ans_names); + foreach my $ans_name (keys(%answer)) { + &Apache::lonxml::debug(" doing $ans_name with ".join(':',@{ $answer{$ans_name}{'answers'} })); + + ${$safeeval->varglob('LONCAPA::CAPAresponse_answer')}= + dclone($answer{$ans_name}); + &Apache::caparesponse::setup_capa_response($args_ref,$response); + my ($result,@msgs) = + &Apache::run::run("&caparesponse_check_list()",$safeeval); + &Apache::lonxml::debug("checking $ans_name $result with $response"); + &Apache::lonxml::debug('msgs are '.join(':',@msgs)); + my ($awards)=split(/:/,$result); + my @awards= split(/,/,$awards); + my ($ad, $msg) = + &Apache::inputtags::finalizeawards(\@awards,\@msgs); + push(@final_awards,$ad); + push(@final_msgs,$msg); + push(@ans_names,$ans_name); + } + my ($ad, $msg, $ans_name) = + &Apache::inputtags::finalizeawards(\@final_awards, + \@final_msgs, + \@ans_names,1); + if ($ad eq 'EXACT_ANS' || $ad eq 'APPROX_ANS') { + push(@Apache::hint::which,$hint_name); + } + $result=''; + } elsif ($target eq 'meta') { + $result=&Apache::response::meta_package_write($token->[1]); + } elsif ($target eq 'edit') { + $result.=&Apache::edit::end_row().&Apache::edit::end_table(); + } + &Apache::caparesponse::pop_answer(); + &Apache::response::end_hintresponse(); + return $result; +} + +sub start_formulahint { + return &start_numericalhint(@_); +} + +sub end_formulahint { + return &end_numericalhint(@_); +} + +sub start_mathhint { + my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; + #do everything in end, so intervening and work + &Apache::response::start_hintresponse($parstack,$safeeval); + &Apache::lonxml::register('Apache::response',('answer')); + my $result; + if ($target eq 'edit') { + $result.=&Apache::edit::tag_start($target,$token); + $result.=&Apache::edit::text_arg('Name:','name',$token); + $result.=&Apache::edit::select_arg('Algebra System:', + 'cas', + ['maxima','R'], + $token); + $result.=&Apache::edit::text_arg('Argument Array:', + 'args',$token); + $result.=&Apache::edit::end_row(); + $result.=&Apache::edit::start_spanning_row(); + } elsif ($target eq 'modified') { + my $constructtag; + $constructtag=&Apache::edit::get_new_args($token,$parstack, + $safeeval,'name','cas', + 'args'); + $result = &Apache::edit::rebuild_tag($token); + } elsif ($target eq 'web') { + &Apache::response::reset_params(); + } + return $result; +} + +sub end_mathhint { + my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; + my $result; + if ($target eq 'web') { + if (!$Apache::lonxml::default_homework_loaded) { + &Apache::lonxml::default_homework_load($safeeval); + } + my $name= &Apache::lonxml::get_param('name',$parstack,$safeeval); + &Apache::response::setup_params('mathhint',$safeeval); + my $partid=$Apache::inputtags::part; + my $submitid=$Apache::inputtags::response[-1]; + my $response = $Apache::lonhomework::history{ + "resource.$partid.$submitid.submission"}; + + my $cas = &Apache::lonxml::get_param('cas',$parstack,$safeeval); + my $award; + if ($cas eq 'maxima') { + my $args = [&Apache::lonxml::get_param_var('args',$parstack,$safeeval)]; + $award=&Apache::lonmaxima::maxima_run($Apache::response::custom_answer[-1],$response,$args); + } + if ($cas eq 'R') { + my $args = [&Apache::lonxml::get_param_var('args',$parstack,$safeeval)]; + $award=&Apache::lonr::r_run($Apache::response::custom_answer[-1],$response,$args); + } + if ($award eq 'EXACT_ANS' || $award eq 'APPROX_ANS') { + push (@Apache::hint::which,$name); + } + $result=''; + } elsif ($target eq 'meta') { + $result=&Apache::response::meta_package_write($token->[1]); + } elsif ($target eq 'edit') { + $result.=&Apache::edit::end_row().&Apache::edit::end_table(); + } + pop(@Apache::response::custom_answer); + pop(@Apache::response::custom_answer_type); + &Apache::response::end_hintresponse(); + return $result; +} + +sub start_customhint { + my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; + #do everything in end, so intervening and work + &Apache::response::start_hintresponse($parstack,$safeeval); + &Apache::lonxml::register('Apache::response',('answer')); + my $result; + if ($target eq 'edit') { + $result.=&Apache::edit::tag_start($target,$token); + $result.=&Apache::edit::text_arg('Name:','name',$token); + $result.=&Apache::edit::end_row(); + $result.=&Apache::edit::start_spanning_row(); + } elsif ($target eq 'modified') { + my $constructtag; + $constructtag=&Apache::edit::get_new_args($token,$parstack, + $safeeval,'name'); + $result = &Apache::edit::rebuild_tag($token); + } elsif ($target eq 'web') { + &Apache::response::reset_params(); + } + return $result; +} + +sub end_customhint { + my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; + my $result; + if ($target eq 'web') { + if (!$Apache::lonxml::default_homework_loaded) { + &Apache::lonxml::default_homework_load($safeeval); + } + my $name= &Apache::lonxml::get_param('name',$parstack,$safeeval); + &Apache::response::setup_params('customhint',$safeeval); + my $partid=$Apache::inputtags::part; + my $submitid=$Apache::inputtags::response[-1]; + my $response = $Apache::lonhomework::history{ + "resource.$partid.$submitid.submission"}; + my $award; + if ( $response =~ /[^\s]/ && + $Apache::response::custom_answer_type[-1] eq 'loncapa/perl') { + if (!$Apache::lonxml::default_homework_loaded) { + &Apache::lonxml::default_homework_load($safeeval); + } + ${$safeeval->varglob('LONCAPA::customresponse_submission')}= + $response; + + $award = &Apache::run::run('{ my $submission=$LONCAPA::customresponse_submission;'.$Apache::response::custom_answer[-1].'}',$safeeval); + } + if ($award eq 'EXACT_ANS' || $award eq 'APPROX_ANS') { + push (@Apache::hint::which,$name); + } + $result=''; + } elsif ($target eq 'meta') { + $result=&Apache::response::meta_package_write($token->[1]); + } elsif ($target eq 'edit') { + $result.=&Apache::edit::end_row().&Apache::edit::end_table(); + } + pop(@Apache::response::custom_answer); + pop(@Apache::response::custom_answer_type); + &Apache::response::end_hintresponse(); + return $result; +} + +sub start_stringhint { + my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; + #do everything in end, so intervening work + &Apache::response::start_hintresponse($parstack,$safeeval); + my $result; + if ($target eq 'edit') { + $result.=&Apache::edit::tag_start($target,$token); + $result.=&Apache::edit::text_arg('Name:','name',$token); + $result.=&Apache::edit::text_arg('Answer:','answer',$token); + $result.=&Apache::edit::select_arg('Type:','type', + [['cs','Case Sensitive'],['ci','Case Insensitive'], + ['mc','Case Insensitive, Any Order'], + ['re','Regular Expression']],$token); + $result.=&Apache::edit::end_row(); + $result.=&Apache::edit::start_spanning_row(); + } elsif ($target eq 'modified') { + my $constructtag; + $constructtag=&Apache::edit::get_new_args($token,$parstack, + $safeeval,'name','answer', + 'type'); + $result = &Apache::edit::rebuild_tag($token); + } elsif ($target eq 'web') { + &Apache::response::reset_params(); + } + return $result; +} + +sub end_stringhint { + my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; + my $result; + if ($target eq 'web') { + if (!$Apache::lonxml::default_homework_loaded) { + &Apache::lonxml::default_homework_load($safeeval); + } + $safeeval->share_from('capa',['&caparesponse_capa_check_answer']); + my $hint_name= &Apache::lonxml::get_param('name',$parstack,$safeeval); + &Apache::response::setup_params('stringhint',$safeeval); + my $partid=$Apache::inputtags::part; + my $id=$Apache::inputtags::hint[-1]; + #id submissions occurred under + my $submitid=$Apache::inputtags::response[-1]; + my $response = $Apache::lonhomework::history{ + "resource.$partid.$submitid.submission"}; + &Apache::lonxml::debug("hintgroup is using $response
\n"); + my $type = &Apache::lonxml::get_param('type',$parstack,$safeeval); + my ($ad,$msg); + if ($type eq 're' ) { + my $answer=&Apache::lonxml::get_param('answer',$parstack, + $safeeval); + ${$safeeval->varglob('LONCAPA::response')}=$response; + my $compare='='; + if ($answer=~/^\s*NOT\s*/) { + $answer=~s/^\s*NOT\s*//; + $compare='!'; + } + my $test='$LONCAPA::response'.$compare.'~m'.$answer; + &Apache::lonxml::debug("test $test"); + $result = &Apache::run::run("return $test",$safeeval); + &Apache::lonxml::debug("current $response"); + &Apache::lonxml::debug("current $answer"); + $ad = ($result) ? 'APPROX_ANS' : 'INCORRECT'; + } else { + my @args = ('type'); + my $args_ref = + &Apache::caparesponse::setup_capa_args($safeeval,$parstack, + \@args,$response); + if ($$args_ref{'type'} eq '') { + $$args_ref{'type'} = 'ci'; + } + &Apache::caparesponse::add_in_tag_answer($parstack,$safeeval); + my (@final_awards,@final_msgs,@ans_names); + my %answer = &Apache::caparesponse::get_answer(); + foreach my $ans_name (keys(%answer)) { + &Apache::lonxml::debug(" doing $ans_name with ".join(':',@{ $answer{$ans_name}{'answers'} })); + ${$safeeval->varglob('LONCAPA::CAPAresponse_answer')}=dclone($answer{$ans_name}); + my ($result, @msgs)=&Apache::run::run("&caparesponse_check_list()",$safeeval); + &Apache::lonxml::debug('msgs are'.join(':',@msgs)); + my ($awards) = split(/:/,$result); + my (@awards) = split(/,/,$awards); + ($ad,$msg) = + &Apache::inputtags::finalizeawards(\@awards,\@msgs); + push(@final_awards,$ad); + push(@final_msgs,$msg); + push(@ans_names,$ans_name); + &Apache::lonxml::debug("\n
result:$result:$Apache::lonxml::curdepth
\n"); + } + my ($ad, $msg, $ans_name) = + &Apache::inputtags::finalizeawards(\@final_awards, + \@final_msgs, + \@ans_names,1); + } + if ($ad eq 'EXACT_ANS' || $ad eq 'APPROX_ANS') { + push(@Apache::hint::which,$hint_name); + } + $result=''; + } elsif ($target eq 'meta') { + $result=&Apache::response::meta_package_write($token->[1]); + } elsif ($target eq 'edit') { + $result.=&Apache::edit::end_row().&Apache::edit::end_table(); + } + &Apache::response::end_hintresponse(); + return $result; } # a part shows if it is on, if no specific parts are on, then default shows sub start_hintpart { - my ($target,$token,$parstack,$parser,$safeeval,$style)=@_; - - my $show ='0'; + my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; - if ($target eq 'web') { - my $args =''; - if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; } - my $on = &Apache::run::run("{$args;".'return $on}',$safeeval); - &Apache::lonxml::debug("hintpart sees $on and ,$#Apache::hint::which"); - if ( $on eq 'default' && $#Apache::hint::which == '-1') { - $show=1; - } else { - my $which; - foreach $which (@Apache::hint::which) { if ($which eq $on) { $show = 1; last } } - } - if (!$show) { - &Apache::lonxml::get_all_text("/hintpart",$$parser[$#$parser]); - } - } elsif ($target eq 'grade') { - &Apache::lonxml::get_all_text("/hintpart",$$parser[$#$parser]); - } - return ''; + my $show ='0'; + my $result = ''; + if ($target eq 'web') { + my $on= &Apache::lonxml::get_param('on',$parstack,$safeeval); + &Apache::lonxml::debug("hintpart sees $on and ,$#Apache::hint::which"); + if ( $on eq 'default' && $#Apache::hint::which == '-1') { + $show=1; + } else { + my $which; + foreach $which (@Apache::hint::which) { if ($which eq $on) { $show = 1; last } } + } + if (!$show) { + &Apache::lonxml::get_all_text("/hintpart",$parser,$style); + } + } elsif ($target eq 'grade') { + &Apache::lonxml::get_all_text("/hintpart",$parser,$style); + } elsif ($target eq 'edit') { + $result.= &Apache::edit::tag_start($target,$token); + $result.= &Apache::edit::text_arg('On:','on',$token); + $result.= &Apache::edit::end_row(); + $result.= &Apache::edit::start_spanning_row(); + } elsif ($target eq 'modified') { + my $constructtag=&Apache::edit::get_new_args($token,$parstack, + $safeeval,'on'); + if ($constructtag) { + $result = &Apache::edit::rebuild_tag($token); + } + } + return $result; } sub end_hintpart { + my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; + my $result; + if ($target eq 'edit') { + $result.=&Apache::edit::end_row().&Apache::edit::end_table(); + } + return $result; } +sub start_optionhint { + my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; + my $result; + &Apache::response::start_hintresponse($parstack,$safeeval); + if ($target eq 'edit') { + $result.=&Apache::edit::tag_start($target,$token); + $result.=&Apache::edit::text_arg('Name:','name',$token); + $result.=&Apache::edit::text_arg('Answer:','answer',$token,40); + $result.=&Apache::edit::text_arg('Concept:','concept',$token,50); + } elsif ($target eq 'modified') { + my $constructtag=&Apache::edit::get_new_args($token,$parstack, + $safeeval,'name', + 'answer','concept'); + if ($constructtag) { + $result = &Apache::edit::rebuild_tag($token); + } + } elsif ($target eq 'meta') { + $result=&Apache::response::meta_package_write('numericalhint'); + } + return $result; +} + +sub end_optionhint { + my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; + my $result; + if ($target eq 'web') { + my ($foilmatch,$conceptmatch)=(-1,-1); + my $name= &Apache::lonxml::get_param('name',$parstack,$safeeval); + my $partid=$Apache::inputtags::part; + #id submissions occurred under + my $submitid=$Apache::inputtags::response[-1]; + my $part_id="$partid.$submitid"; + my %answer; + my $answer=&Apache::lonxml::get_param('answer',$parstack,$safeeval); + if ($answer) { + eval('%answer ='.$answer); + &Apache::lonxml::debug("answwer hash"); + &Apache::lonhomework::showhash(%answer); + my $response = $Apache::lonhomework::history{ + "resource.$part_id.submission"}; + my %response=&Apache::lonnet::str2hash($response); + &Apache::lonhomework::showhash(%response); + foreach my $foil (keys(%answer)) { + $foilmatch=1; + if ($answer{$foil} ne $response{$foil}) {$foilmatch=0;last;} + } + } + my %concept; + my $constr=&Apache::lonxml::get_param('concept',$parstack,$safeeval); + if ( $constr ) { eval('%concept ='.$constr); } + my $response = $Apache::lonhomework::history{ + "resource.$part_id.submissiongrading"}; + my %response=&Apache::lonnet::str2hash($response); + foreach my $concept (keys(%concept)) { + my $compare; + if ($concept{$concept} eq 'correct') {$compare=1}else{$compare=0} + $conceptmatch=1; + if (ref($Apache::hint::option{"$part_id.concepts"})) { + foreach my $foil (@{ $Apache::hint::option{"$part_id.concept.$concept"} }) { + &Apache::lonxml::debug("compare -$foil- -$response{$foil}-$compare-"); + if ( exists($response{$foil}) && + $response{$foil} ne $compare) {$conceptmatch=0;last;} + } + } else { + $conceptmatch=0; + } + if ($conceptmatch eq '0') { last; } + } + if ( ($conceptmatch eq '-1' || $conceptmatch eq '1') && + ($foilmatch eq '-1' || $foilmatch eq '1') ) { + push(@Apache::hint::which,$name); + } + } elsif ($target eq 'edit') { + $result.=&Apache::edit::end_row().&Apache::edit::end_table(); + } + &Apache::response::end_hintresponse(); + return $result; +} + +sub start_radiobuttonhint { + my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; + my $result; + &Apache::response::start_hintresponse($parstack,$safeeval); + if ($target eq 'edit') { + $result.=&Apache::edit::tag_start($target,$token); + $result.=&Apache::edit::text_arg('Name:','name',$token); + $result.=&Apache::edit::text_arg('Answer:','answer',$token); + } elsif ($target eq 'modified') { + my $constructtag=&Apache::edit::get_new_args($token,$parstack, + $safeeval,'name', + 'answer'); + if ($constructtag) { + $result = &Apache::edit::rebuild_tag($token); + } + } elsif ($target eq 'meta') { + $result=&Apache::response::meta_package_write('numericalhint'); + } + return $result; +} + +sub end_radiobuttonhint { + my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; + my $result; + if ($target eq 'web') { + my $name= &Apache::lonxml::get_param('name',$parstack,$safeeval); + my @answer; + my $answer=&Apache::lonxml::get_param('answer',$parstack,$safeeval); + eval('@answer ='.$answer); + my $partid=$Apache::inputtags::part; + #id submissions occurred under + my $submitid=$Apache::inputtags::response[-1]; + my $part_id="$partid.$submitid"; + my $response = $Apache::lonhomework::history{ + "resource.$part_id.submission"}; + ($response)=&Apache::lonnet::str2hash($response); + &Apache::lonxml::debug("response is $response"); + + if ($answer[0] eq 'foil') { + shift(@answer); + foreach my $answer (@answer) { + if ($response eq $answer) { + push (@Apache::hint::which,$name); + last; + } + } + } elsif ($answer[0] eq 'concept') { + shift(@answer); + foreach my $answer (@answer) { + if (ref($Apache::hint::radiobutton{"$part_id.concept.".$answer})) { + my @names=@{ $Apache::hint::radiobutton{"$part_id.concept.".$answer} }; + if (grep(/^\Q$response\E$/,@names)) { + push(@Apache::hint::which,$name); + last; + } + } + } + } + } elsif ($target eq 'edit') { + $result.=&Apache::edit::end_row().&Apache::edit::end_table(); + } + &Apache::response::end_hintresponse(); + return $result; +} 1; __END__ + + +=head1 NAME + +Apache::hinttags + +=head1 SYNOPSIS + +This handler coordinates the delivery of hints to students working on LON-CAPA problems and assignments. + +This is part of the LearningOnline Network with CAPA project +described at http://www.lon-capa.org. + +=head1 SUBROUTINES + +=over + +=item start_hintgroup() + +=item end_hintgroup() + +=item start_numericalhint() + +=item end_numericalhint() + +=item start_formulahint() + +=item end_formulahint() + +=item start_mathhint() + +=item end_mathhint() + +=item start_customhint() + +=item end_customhint() + +=item start_stringhint() + +=item end_stringhint() + +=item start_hintpart() + +=item end_hintpart() + +=item start_optionhint() + +=item end_optionhint() + +=item start_radiobuttonhint() + +=item end_radiobuttonhint() + +=back + +=cut