# The LearningOnline Network with CAPA # definition of tags that give a structure to a document # # $Id: structuretags.pm,v 1.129 2002/10/28 14:47:22 sakharuk Exp $ # # Copyright Michigan State University Board of Trustees # # This file is part of the LearningOnline Network with CAPA (LON-CAPA). # # LON-CAPA is free 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/ # # 2/19 Guy # 6/26/2001 fixed extra web display at end of tags # 8/17,8/18,8/20 Gerd Kortemeyer package Apache::structuretags; use strict; use Apache::lonnet; use Apache::File(); BEGIN { &Apache::lonxml::register('Apache::structuretags',('block','while','randomlist','problem','library','web','tex','part','preduedate','postanswerdate','solved','notsolved','startouttext','endouttext')); # &Apache::lonxml::register_insert('problem','',('part','postanswerdate','preduedate')) } sub start_web { my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; my $bodytext=&Apache::lonxml::get_all_text("/web",$$parser[$#$parser]); if ($target eq 'web') { return $bodytext; } return ''; } sub end_web { return ''; } sub start_tex { my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; my $bodytext=&Apache::lonxml::get_all_text("/tex",$$parser[$#$parser]); if ($target eq 'tex') { return $bodytext.' '; } return ''; } sub end_tex { return ''; } sub page_start { my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; my %found; foreach my $taginside ($tagstack) { foreach my $taglookedfor ('html','body','form') { if ($taginside =~ /^$taglookedfor$/i) { $found{$taglookedfor} = 1; } } } my $result; my $head_tag_start; if (!defined($found{'html'})) { $result=&Apache::londefdef::start_html($target,$token,$tagstack,$parstack, $parser,$safeeval); $head_tag_start=''.&Apache::lonxml::registerurl(undef,$target); } my $body_tag_start; if (!defined($found{'body'})) { $body_tag_start=''; } return ($result,$head_tag_start,$body_tag_start,$form_tag_start); } sub get_resource_name { my ($parstack,$safeeval)=@_; my $name=&Apache::lonxml::get_param('name',$parstack,$safeeval); if ($name eq '') { $name=&Apache::lonnet::EXT('resource.title'); if ($name eq 'con_lost') { $name = ''; } } $Apache::lonhomework::name=$name; return $name; } sub setup_rndseed { my ($safeeval)=@_; my $rndseed; if ($ENV{'request.state'} eq "construct") { $rndseed=$ENV{'form.rndseed'}; if (!$rndseed) { $rndseed=time; $ENV{'form.rndseed'}=$rndseed; } &Apache::run::run('$external::randomseed='.$rndseed.';',$safeeval); } return $rndseed; } sub problem_edit_header { return '

'; } sub problem_edit_footer { return '
'; } sub problem_web_to_edit_header { my ($rndseed)=@_; my $result.=' Random Seed:
'; return $result; } sub initialize_storage { %Apache::lonhomework::results=(); my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser(); if ($ENV{'request.state'} eq 'construct') { %Apache::lonhomework::history= &Apache::lonnet::tmprestore($ENV{'request.uri'},'',$domain,$name); my ($temp)=keys %Apache::lonhomework::history ; &Apache::lonxml::debug("Return message of $temp"); } else { %Apache::lonhomework::history= &Apache::lonnet::restore($symb,$courseid,$domain,$name); } #ignore error conditions my ($temp)=keys %Apache::lonhomework::history ; if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); } } # -------------------------------------------------------------finalize_storage # Stores away the result has to a student's environment # checks form.grade_ for specific values, other wises stores # to the running users environment sub finalize_storage { my $result; my ($temp) = keys %Apache::lonhomework::results; if ( $temp ne '' ) { my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser(); if ($ENV{'request.state'} eq 'construct') { $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results, $ENV{'request.uri'},'',$domain,$name); &Apache::lonxml::debug('Construct Store return message:'.$result); } else { $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results, $symb,$courseid,$domain,$name); &Apache::lonxml::debug('Store return message:'.$result); } } return $result; } sub checkout_msg { return (<The resource needs to be checked out As a resource gets checked out, a unique timestamped ID is given to it, and a permanent record is left in the system.

Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.

ENDCHECKOUT } sub start_problem { my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; # meta is called from lonpublisher, which doesn't uses the normal # lonhomework method of parsing the file which means that inputtags # won't get reset if ( $Apache::inputtags::part ne '' && $target != 'meta' ) { &Apache::lonxml::error('Only one problem allowed in a .problem file'); my $bodytext=&Apache::lonxml::get_all_text("/problem",$$parser[-1]); return ''; } #intialize globals $Apache::inputtags::part='0'; @Apache::inputtags::responselist = (); @Apache::inputtags::previous=(); if ($target ne 'analyze') { &initialize_storage(); if ($target eq 'web') { &Apache::lonhomework::showhash(%Apache::lonhomework::history); } $Apache::lonhomework::type=&Apache::lonnet::EXT('resource.0.type'); &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:"); } if ($Apache::lonhomework::type eq '') { my $uri=$ENV{'request.uri'}; if ($uri=~/\.(\w+)$/) { $Apache::lonhomework::type=$1; &Apache::lonxml::debug("Using type of $1"); } else { $Apache::lonhomework::type='problem'; &Apache::lonxml::debug("Using default type, problem, :$uri:"); } } #added vars to the scripting enviroment my $expression='$external::part='.$Apache::inputtags::part.';'; &Apache::run::run($expression,$safeeval); my $status; my $accessmsg; #should get back a or the neccesary stuff to start XML/MathML my ($result,$head_tag_start,$body_tag_start,$form_tag_start)= &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval); if ($target eq 'tex' and $ENV{'request.symb'} =~ m/\.page_/) { $result = '';} if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' || $target eq 'tex') { #handle exam checkout if ($Apache::lonhomework::type eq 'exam') { my $token=$Apache::lonhomework::history{"resource.0.outtoken"}; if (($ENV{'form.doescheckout'}) && (!$token)) { $token=&Apache::lonxml::maketoken(); $Apache::lonhomework::history{"resource.0.outtoken"}=$token; } $body_tag_start.=&Apache::lonxml::printtokenheader($target,$token); } #handle rand seed in construction space my $rndseed=&setup_rndseed($safeeval); ($status,$accessmsg) = &Apache::lonhomework::check_access('0'); push (@Apache::inputtags::status,$status); my $expression='$external::datestatus="'.$status.'";'; $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";'; &Apache::run::run($expression,$safeeval); if (( $status eq 'CLOSED' ) || ( $status eq 'UNCHECKEDOUT') || ( $status eq 'BANNED')) { my $bodytext=&Apache::lonxml::get_all_text("/problem",$$parser[$#$parser]); if ( $target eq "web" ) { $result.= $head_tag_start.''; my $msg=$body_tag_start. '

Not open to be viewed

'; if ($status eq 'CLOSED') { $msg.='The problem '.$accessmsg; } elsif ($status eq 'UNCHECKEDOUT') { $msg.=&checkout_msg; } $result.=$msg.'
'; } elsif ($target eq 'tex') { $result.="\\begin{document}\\noindent \\vskip 1 mm \\begin{minipage}{\\textwidth}\\vskip 0 mm Problem is not open to be viewed. It $accessmsg \\vskip 0 mm "; } } elsif ($target eq 'web') { my $name= &get_resource_name($parstack,$safeeval); if ($status eq 'CAN_ANSWER') { # create a page header and exit $result.="$head_tag_start$name $body_tag_start \n $form_tag_start". ''; if ($ENV{'request.state'} eq "construct") { $result.= &problem_web_to_edit_header($rndseed); } # if we are viewing someone else preserve that info if (defined $ENV{'form.grade_symb'}) { foreach my $field ('symb','courseid','domain','username') { $result .= ''."\n"; } } } elsif ($status eq 'SHOW_ANSWER' || $status eq 'CANNOT_ANSWER' || $status eq 'CLOSED') { $result.=$head_tag_start. "$name\n$body_tag_start\n"; } } elsif ($target eq 'tex') { my $name= &Apache::lonxml::get_param('name',$parstack,$safeeval); if ($name eq '') { $name=&Apache::lonnet::EXT('resource.title'); if ($name eq 'con_lost') { $name = ''; } } $Apache::lonhomework::name=$name; my $id = $Apache::inputtags::part; my $duedate = &Apache::lonnet::EXT("resource.$id.duedate"); $duedate = POSIX::strftime("%c",localtime($duedate)); my $temp_file; my $filename = "/home/httpd/prtspool/$ENV{'user.name'}_$ENV{'user.domain'}_printout.due"; if (-e $filename) { $temp_file = Apache::File->new($filename); } else { $temp_file = Apache::File->new('>>'.$filename); } my @due_file_content = <$temp_file>; my $due_file_content = $due_file_content[$#due_file_content]; chomp $due_file_content; if ($due_file_content ne $duedate) { $temp_file = Apache::File->new('>'.$filename); print $temp_file "$duedate\n"; if (not $ENV{'request.symb'} =~ m/\.page_/) { if(not $duedate=~m/1969/) { $result .= '\begin{document} \noindent\textit{Due date: '.$duedate.'} \vskip 1 mm\noindent \begin{minipage}{\textwidth}'; } else { $result .= '\begin{document} \noindent \vskip 1 mm \noindent\begin{minipage}{\textwidth}'; } } else { $result .= '\vskip 1mm\textit{Due date: '.$duedate.'} \\\\\\\\'; } } else { if (not $ENV{'request.symb'} =~ m/\.page_/) { $result .= '\begin{document} \noindent \vskip 1 mm\noindent\begin{minipage}{\textwidth}'; } else { $result .= '\vskip 1mm \\\\\\\\'; } } } } elsif ($target eq 'edit') { $result.=$head_tag_start."".$body_tag_start.$form_tag_start. &problem_edit_header(); my $temp=&Apache::edit::insertlist($target,$token); $result.=$temp; } elsif ($target eq 'modified') { $result=$token->[4]; $result.=&Apache::edit::handle_insert(); } else { # page_start returned a starting result, delete it if we don't need it $result = ''; } return $result; } sub end_problem { my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; my $result=''; my $status=$Apache::inputtags::status['-1']; if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' || $target eq 'tex') { if ( $target eq 'grade' && $Apache::inputtags::part eq '0') { # if part is zero, no s existed, so we need to the grading &Apache::inputtags::grade; } elsif ( ($target eq 'web' || $target eq 'tex') && $Apache::inputtags::part eq '0' && $status ne 'UNCHECKEDOUT') { # if part is zero, no s existed, so we need show the current # grading status my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target); if ($Apache::lonhomework::type ne 'exam') {$result.= $gradestatus;} } if ( (($target eq 'web') && ($ENV{'request.state'} ne 'construct')) || ($target eq 'answer') || ($target eq 'tex') ) { if ($status eq 'CAN_ANSWER') { if ($target ne 'tex') { $result.="\n"; } } elsif ($status eq 'SHOW_ANSWER' || $status eq 'CANNOT_ANSWER' || $status eq 'UNCHECKEDOUT' ) { if ($target ne 'tex') { $result.="\n"; } } if ($target ne 'tex') { $result.=&Apache::lonxml::xmlend(); } else { $result .= '\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}'; if (not $ENV{'request.symb'} =~ m/\.page_/) { $result .= '\end{minipage}\end{document} '; } else { $result .= ''; } } } if ($target eq 'grade') { &Apache::lonhomework::showhash(%Apache::lonhomework::results); &finalize_storage(); } } elsif ($target eq 'meta') { if ($Apache::inputtags::part eq '0') { $result=&Apache::response::mandatory_part_meta; } } elsif ($target eq 'edit') { &Apache::lonxml::debug("in end_problem with $target, edit"); $result = &problem_edit_footer(); } return $result; } sub start_library { my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; my ($result,$head_tag_start,$body_tag_start,$form_tag_start); if ($target eq 'edit') { ($result,$head_tag_start,$body_tag_start,$form_tag_start)= &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval); $result.=$head_tag_start."".$body_tag_start.$form_tag_start. &problem_edit_header(); my $temp=&Apache::edit::insertlist($target,$token); $result.=$temp; } elsif ($target eq 'modified') { $result=$token->[4]; $result.=&Apache::edit::handle_insert(); } elsif ($target eq 'web' && $$tagstack[0] ne 'problem' && $ENV{'request.state'} eq "construct" ) { ($result,$head_tag_start,$body_tag_start,$form_tag_start)= &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval); my $name=&get_resource_name($parstack,$safeeval); my $rndseed=&setup_rndseed($safeeval); $result.="$head_tag_start$name $body_tag_start \n $form_tag_start". ''; $result.=&problem_web_to_edit_header($rndseed); } return $result; } sub end_library { my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; my $result=''; if ($target eq 'edit') { $result=&problem_edit_footer(); } elsif ($target eq 'web' && $$tagstack[0] ne 'problem' && $ENV{'request.state'} eq "construct") { $result.=''.&Apache::lonxml::xmlend(); } return $result; } sub start_block { my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' || $target eq 'tex' || $target eq 'analyze') { my $code = @$parstack[$#$parstack]; $code =~ s/\"//g; $code .=';return $condition;'; # print "
$code
"; my $result = &Apache::run::run($code,$safeeval); &Apache::lonxml::debug("block :$code: returned :$result:"); if ( ! $result ) { my $skip=&Apache::lonxml::get_all_text("/block",$$parser[$#$parser]); &Apache::lonxml::debug("skipping ahead :$skip: $$parser[$#$parser]"); } } return ""; } sub end_block { return ''; } sub start_while { my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; my $code = @$parstack[$#$parstack]; $code =~ s/\"//g; $code .=';return $condition;'; push( @Apache::structuretags::whileconds, $code); my $result = &Apache::run::run($code,$safeeval); my $bodytext=$$parser[$#$parser]->get_text("/while"); push( @Apache::structuretags::whilebody, $bodytext); if ( $result ) { &Apache::lonxml::newparser($parser,\$bodytext); } return ""; } sub end_while { my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; my $code = pop @Apache::structuretags::whileconds; my $bodytext = pop @Apache::structuretags::whilebody; my $result = &Apache::run::run($code,$safeeval); if ( $result ) { &Apache::lonxml::newparser($parser,\$bodytext); } return ""; } # # .. # .. # .. # ... # sub start_randomlist { my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; my $result; if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' || $target eq 'tex' || $target eq 'analyze') { my $body= &Apache::lonxml::get_all_text("/randomlist",$$parser[$#$parser]); my $b_parser= HTML::TokeParser->new(\$body); my $b_tok; my @randomlist; my $list_item; while($b_tok = $b_parser->get_token() ) { if($b_tok->[0] eq 'S') { # start tag # get content of the tag until matching end tag # get all text upto the matching tag # and push the content into @randomlist $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],$b_parser); $list_item = "$b_tok->[4]"."$list_item"."[1]>"; push(@randomlist,$list_item); # print "
START-TAG $b_tok->[1], $b_tok->[4], $list_item"; } if($b_tok->[0] eq 'T') { # text # what to do with text in between tags? # print "TEXT $b_tok->[1]
"; } # if($b_tok->[0] eq 'E') { # end tag, should not happen # print "END-TAG $b_tok->[1]
"; # } } my @idx_arr = (0 .. $#randomlist); &Apache::structuretags::shuffle(\@idx_arr); my $bodytext = ''; my $show=$#randomlist; my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval); $showarg--; if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; } for(0 .. $show) { $bodytext .= "$randomlist[ $idx_arr[$_] ]"; } &Apache::lonxml::newparser($parser,\$bodytext); } elsif ($target eq 'edit' ) { $result .= &Apache::edit::tag_start($target,$token); $result .= &Apache::edit::text_arg('Maximum Tags to Show:','show',$token,5); $result .= &Apache::edit::end_row().&Apache::edit::start_spanning_row(); } elsif ($target eq 'modified' ) { my $constructtag=&Apache::edit::get_new_args($token,$parstack,$safeeval, 'show'); if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); } } return $result; } sub shuffle { my $a=shift; my $i; if (defined(@$a)) { &Apache::response::setrandomnumber(); for($i=@$a;--$i;) { my $j=int(&Math::Random::random_uniform() * ($i+1)); next if $i == $j; @$a[$i,$j] = @$a[$j,$i]; } } } sub end_randomlist { my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; my $result; if ($target eq 'edit' ) { $result=&Apache::edit::tag_end($target,$token,'End Randomly Parsed Block'); } return $result; } sub start_part { my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; my $result=''; my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval); if ($id eq '') { $id = $Apache::lonxml::curdepth; } $Apache::inputtags::part=$id; @Apache::inputtags::responselist = (); @Apache::inputtags::previous=(); if ($target eq 'meta') { return &Apache::response::mandatory_part_meta; } elsif ($target eq 'web' || $target eq 'grade' || $target eq 'answer' || $target eq 'tex') { my ($status,$accessmsg) = &Apache::lonhomework::check_access($id); push (@Apache::inputtags::status,$status); my $expression='$external::datestatus="'.$status.'";'; $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";'; &Apache::run::run($expression,$safeeval); if ( $status eq 'CLOSED' ) { my $bodytext=&Apache::lonxml::get_all_text("/part",$$parser[$#$parser]); if ( $target eq "web" ) { $result="
Part is not open to be viewed. It $accessmsg
"; } elsif ( $target eq 'tex' ) { $result="\\end{minipage}\\vskip 0 mm Part is not open to be viewed. It $accessmsg \\\\\\begin{minipage}{\\textwidth}"; } } else { if ($target eq 'tex') { if ($$tagstack[-2] ne 'problem') { $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent'; } } } } return $result; } sub end_part { my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; &Apache::lonxml::debug("in end_part $target "); my $status=$Apache::inputtags::status['-1']; pop @Apache::inputtags::status; if ( $target eq 'meta' ) { return ''; } if ( $target eq 'grade' && $status eq 'CAN_ANSWER') { return &Apache::inputtags::grade; } if ($target eq 'web' || $target eq 'tex' ) { my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,$target); if ($Apache::lonhomework::type eq 'exam') {$gradestatus='';} return $gradestatus; } return ''; } sub start_preduedate { my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' || $target eq 'tex') { if ($Apache::inputtags::status['-1'] ne 'CAN_ANSWER' && $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER' ) { &Apache::lonxml::get_all_text("/preduedate",$$parser[$#$parser]); } } return ''; } sub end_preduedate { return ''; } sub start_postanswerdate { my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; if ($target eq 'web' || $target eq 'grade' || $target eq 'tex') { if ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER') { &Apache::lonxml::get_all_text("/postanswerdate",$$parser[$#$parser]); } } elsif ($target eq 'tex') { return '\vskip 0 mm \noindent'; } return ''; } sub end_postanswerdate { return ''; } sub start_notsolved { my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' || $target eq 'tex') { my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"}; &Apache::lonxml::debug("not solved has :$gradestatus:"); if ($gradestatus =~ /^correct/) { &Apache::lonxml::debug("skipping"); &Apache::lonxml::get_all_text("/notsolved",$$parser[$#$parser]); } } return ''; } sub end_notsolved { return ''; } sub start_solved { my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' || $target eq 'tex') { my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"}; if ($gradestatus !~ /^correct/) { &Apache::lonxml::get_all_text("/solved",$$parser[$#$parser]); } } return ''; } sub end_solved { return ''; } sub start_startouttext { my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; my @result=(''.''); if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); } return (@result); } sub end_startouttext { my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; my $result=''; my $text=''; if ($target eq 'edit') { $text=&Apache::lonxml::get_all_text("endouttext",$$parser[-1]); $result.=&Apache::edit::start_table($token)."Text Block Delete:". &Apache::edit::deletelist($target,$token) ." ". &Apache::edit::insertlist($target,$token). &Apache::edit::end_row().&Apache::edit::start_spanning_row()."\n". &Apache::edit::editfield($token->[1],$text,"",80,4); } if ($target eq 'modified') { $text=&Apache::lonxml::get_all_text("endouttext",$$parser['-1']); $result=''.&Apache::edit::modifiedfield(); } if ($target eq 'tex') { $result .= '\noindent '; } return $result; } sub start_endouttext { my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; my $result=''; if ($target eq "edit" ) { $result="".&Apache::edit::end_table()."\n"; } if ($target eq "modified") { $result=''; } return $result; } sub end_endouttext { my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; my @result=('',''); if ($target eq "edit" || $target eq 'modified') { @result=('','no'); } return (@result); } sub delete_startouttext { my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; # my $text=&Apache::lonxml::get_all_text("endouttext",$$parser['-1']); my $text=$$parser['-1']->get_text("/endouttext"); my $ntoken=$$parser['-1']->get_token(); &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext"); &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken); # Deleting 2 parallel tag pairs, but we need the numbers later to look like # they did the last time round &Apache::lonxml::increasedepth($ntoken); &Apache::lonxml::decreasedepth($ntoken); return 1; } 1; __END__