loncom/homework/structuretags.pm - diff

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Diff for /loncom/homework/structuretags.pm between versions 1.261 and 1.351

version 1.261, 2004/07/27 23:35:33	version 1.351, 2006/04/20 03:35:06
Line 36 use Apache::File();	Line 36 use Apache::File();
use Apache::lonmenu;	use Apache::lonmenu;
use Apache::lonlocal;	use Apache::lonlocal;
use Apache::lonxml;	use Apache::lonxml;
	use Apache::lonenc();
	use Time::HiRes qw( gettimeofday tv_interval );
BEGIN {	BEGIN {
&Apache::lonxml::register('Apache::structuretags',('block','languageblock','instructorcomment','while','randomlist','problem','library','web','tex','part','preduedate','postanswerdate','solved','notsolved','problemtype','startouttext','endouttext','simpleeditbutton','definetag'));	&Apache::lonxml::register('Apache::structuretags',('block','languageblock','instructorcomment','while','randomlist','problem','library','web','tex','part','preduedate','postanswerdate','solved','notsolved','problemtype','startouttext','endouttext','simpleeditbutton','definetag'));
}	}

sub start_web {	sub start_web {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;	my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
my $bodytext=&Apache::lonxml::get_all_text("/web",$parser);	my $bodytext=&Apache::lonxml::get_all_text("/web",$parser,$style);
if ($target eq 'web') {	if ($target eq 'web' \|\| $target eq 'webgrade') {
return $bodytext;	return $bodytext;
}	}
return '';	return '';
Line 55 sub end_web {	Line 56 sub end_web {
}	}

sub start_tex {	sub start_tex {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;	my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
my $result='';	my $result='';
my $bodytext=&Apache::lonxml::get_all_text("/tex",$parser);	my $bodytext=&Apache::lonxml::get_all_text("/tex",$parser,$style);
if ($target eq 'tex') {	if ($target eq 'tex') {
return $bodytext.' ';	return $bodytext.' ';
}	}
Line 69 sub end_tex {	Line 70 sub end_tex {
}	}

sub page_start {	sub page_start {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;	my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$name,
	$extra_head)=@_;
my %found;	my %found;
foreach my $taginside (@$tagstack) {	foreach my $taginside (@$tagstack) {
foreach my $taglookedfor ('html','body','form') {	foreach my $taglookedfor ('html','body','form') {
Line 77 sub page_start {	Line 79 sub page_start {
}	}
}	}

my $result;	if ($target eq 'tex') {
my $head_tag_start;	return
if (!defined($found{'html'})) {	&Apache::londefdef::start_html($target,$token,$tagstack,
$result=&Apache::londefdef::start_html($target,$token,$tagstack,	$parstack,$parser,$safeeval);
$parstack,$parser,$safeeval);
$head_tag_start='<head>'.&Apache::lonmenu::registerurl(undef,$target).
&Apache::lonhtmlcommon::htmlareaheaders().
&Apache::lonhtmlcommon::spellheader();
}	}
my $body_tag_start;
if (!defined($found{'body'})) {	my %body_args;
$body_tag_start='<body onLoad="'.&Apache::lonmenu::loadevents().'" '.	if (defined($found{'html'})) {
'onUnload="'.&Apache::lonmenu::unloadevents().'" ';	$body_args{'skip_phases'}{'head'}=1;
	} else {

	$extra_head .= &Apache::lonhtmlcommon::spellheader();

	my $css_href = &Apache::lonnet::EXT('resource.0.cssfile');
	if ($css_href =~ /\S/) {
	&Apache::lonxml::extlink($css_href);
	$extra_head .=
	'<link rel="stylesheet" type="text/css" href="'.$css_href.'" />';
	}
	if ($target eq 'edit') {
	$extra_head.=&Apache::edit::js_change_detection().
	"<script type=\"text/javascript\">\n".
	"if (typeof swmenu != 'undefined') {swmenu.currentURL=null;}\n".
	&Apache::loncommon::browser_and_searcher_javascript().
	"\n</script>\n";
	}
	}

	if (defined($found{'body'})) {
	$body_args{'skip_phases'}{'body'}=1;
	} elsif (!defined($found{'body'})
	&& $env{'request.state'} eq 'construct') {
	if ($target eq 'web' \|\| $target eq 'edit') {
	# no extra args to bodytag
	}
	} elsif (!defined($found{'body'})) {
	my %add_entries;
my $background=&Apache::lonxml::get_param('background',$parstack,	my $background=&Apache::lonxml::get_param('background',$parstack,
$safeeval);	$safeeval);
if ($ENV{'browser.imagesuppress'} eq 'on') { $background=''; }	if ($background ne '' ) {
if ($background) {	$add_entries{'background'} = $background;
$Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=
$background;
$body_tag_start.='background="'.$background.'" ';
} else {
my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
$safeeval);
if (($bgcolor) && ($ENV{'browser.blackwhite'} ne 'on')) {
$body_tag_start.='bgcolor="'.$bgcolor.'" ';
} else {
$body_tag_start.='bgcolor="#ffffff"';
}
}
if ($ENV{'browser.fontenhance'} eq 'on') {
$body_tag_start.=' style="font-size: x-large;" ';
}	}
$body_tag_start.='>'.&Apache::lonmenu::menubuttons(undef,$target,1);
if ($target eq 'web' && $ENV{'request.state'} ne 'construct') {	my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
my ($symb,undef,undef,undef,$publicuser)=	$safeeval);
&Apache::lonxml::whichuser();	if ($bgcolor eq '' ) { $bgcolor = '#FFFFFF'; }
if ($symb eq '' && !$publicuser) {
my $help = &Apache::loncommon::help_open_topic("Ambiguous_Reference");	$body_args{'bgcolor'} = $bgcolor;
$help=&mt("Browsing resource, all submissions are temporary.")."<br />";	$body_args{'no_title'} = 1;
$body_tag_start.=$help;	$body_args{'force_register'} = 1;
}	$body_args{'add_entries'} = \%add_entries;
	}

	my $page_start = &Apache::loncommon::start_page($name,$extra_head,
	\%body_args);

	if (!defined($found{'body'})
	&& $env{'request.state'} ne 'construct'
	&& ($target eq 'web' \|\| $target eq 'webgrade')) {

	my ($symb,undef,undef,undef,$publicuser)= &Apache::lonxml::whichuser();
	if ($symb eq '' && !$publicuser) {
	my $help = &Apache::loncommon::help_open_topic("Ambiguous_Reference");
	$help=&mt("Browsing resource, all submissions are temporary.")."<br />";
	$page_start .= $help;
}	}
$body_tag_start.=&Apache::lonxml::message_location();
}	}

	if (!defined($found{'body'})) {
	$page_start .= &Apache::lonxml::message_location();
	}

my $form_tag_start;	my $form_tag_start;
if (!defined($found{'form'})) {	if (!defined($found{'form'})) {
$form_tag_start='<form name="lonhomework" method="POST" action="'.	$form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="post" action="';
$ENV{'request.uri'}.'">';	my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
	$form_tag_start.=$uri.'" ';
	if ($target eq 'edit') {
	$form_tag_start.=&Apache::edit::form_change_detection();
	}
	$form_tag_start.='>';
}	}
return ($result,$head_tag_start,$body_tag_start,$form_tag_start);	return ($page_start,$form_tag_start);
}	}

#use Time::HiRes();	#use Time::HiRes();
Line 135 sub get_resource_name {	Line 170 sub get_resource_name {
if (defined($Apache::lonhomework::name)) {	if (defined($Apache::lonhomework::name)) {
return $Apache::lonhomework::name;	return $Apache::lonhomework::name;
}	}
my $name=&Apache::lonnet::gettitle();	my ($symb)=&Apache::lonxml::whichuser();
	my $name=&Apache::lonnet::gettitle($symb);
if ($name eq '') {	if ($name eq '') {
$name=&Apache::lonnet::EXT('resource.title');	$name=&Apache::lonnet::EXT('resource.title');
if ($name eq 'con_lost') { $name = ''; }	if ($name eq 'con_lost') { $name = ''; }
}	}
if ($name!~/\S+/) {	if ($name!~/\S+/) {
$name=$ENV{'request.uri'};	$name=$env{'request.uri'};
$name=~s-.*/([^/]+)$-$1-;	$name=~s-.*/([^/]+)$-$1-;
}	}
$Apache::lonhomework::name=$name;	$Apache::lonhomework::name=$name;
Line 152 sub setup_rndseed {	Line 188 sub setup_rndseed {
my ($safeeval)=@_;	my ($safeeval)=@_;
my $rndseed;	my $rndseed;
my ($symb)=&Apache::lonxml::whichuser();	my ($symb)=&Apache::lonxml::whichuser();
if ($ENV{'request.state'} eq "construct" \|\| $symb eq '' \|\|	if ($env{'request.state'} eq "construct"
$Apache::lonhomework::history{'resource.CODE'}) {	\|\| $symb eq ''
$rndseed=$ENV{'form.rndseed'};	\|\| $Apache::lonhomework::type eq 'practice'
	\|\| $Apache::lonhomework::history{'resource.CODE'}) {
	&Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
	['rndseed']);
	$rndseed=$env{'form.rndseed'};
if (!$rndseed) {	if (!$rndseed) {
$rndseed=$Apache::lonhomework::history{'rndseed'};	$rndseed=$Apache::lonhomework::history{'rndseed'};
if (!$rndseed) {	if (!$rndseed) {
$rndseed=time;	$rndseed=time;
}	}
$ENV{'form.rndseed'}=$rndseed;	$env{'form.rndseed'}=$rndseed;
}	}
if ($ENV{'form.resetdata'} eq &mt('New Problem Variation') \|\|	if ($env{'form.resetdata'} eq &mt('New Problem Variation') \|\|
$ENV{'form.newrandomization'} eq &mt('New Randomization')) {	$env{'form.newrandomization'} eq &mt('New Randomization')) {
srand(time);	srand(time);
$rndseed=int(rand(2100000000));	$rndseed=int(rand(2100000000));
$ENV{'form.rndseed'}=$rndseed;	$env{'form.rndseed'}=$rndseed;
delete($ENV{'form.resetdata'});	delete($env{'form.resetdata'});
delete($ENV{'form.newrandomization'});	delete($env{'form.newrandomization'});
}	}
if (defined($rndseed) && $rndseed ne int($rndseed)) {	if (defined($rndseed) && $rndseed ne int($rndseed)) {
$rndseed=join(',',&Math::Random::random_seed_from_phrase($rndseed));	$rndseed=join(':',&Apache::lonnet::digest($rndseed));
}	}
if ($Apache::lonhomework::history{'resource.CODE'}) {	if ($Apache::lonhomework::history{'resource.CODE'}) {
$rndseed=&Apache::lonnet::rndseed();	$rndseed=&Apache::lonnet::rndseed();
Line 184 sub setup_rndseed {	Line 224 sub setup_rndseed {
return $rndseed;	return $rndseed;
}	}

	sub remember_problem_state {
	return '
	<input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
	<input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
	<input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
	}

sub problem_edit_header {	sub problem_edit_header {
return '<input type="hidden" name="submitted" value="edit" />	return '<input type="hidden" name="submitted" value="edit" />'.
	&Apache::structuretags::remember_problem_state().'
<input type="hidden" name="problemmode" value="'.&mt('Edit').'" />	<input type="hidden" name="problemmode" value="'.&mt('Edit').'" />
<input type="submit" name="problemmode" accesskey="d" value="'.&mt('Discard Edits and View').'" />	<input type="submit" name="problemmode" accesskey="d" value="'.&mt('Discard Edits and View').'" />
<input type="submit" name="problemmode" accesskey="x" value="'.&mt('EditXML').'" />	<input '.&Apache::edit::submit_ask_anyway().' type="submit" name="problemmode" accesskey="x" value="'.&mt('EditXML').'" />
<input type="submit" name="Undo" accesskey="u" value="'.&mt('undo').'" /> <hr />	<input type="submit" name="Undo" accesskey="u" value="'.&mt('undo').'" /> <hr />
<input type="submit" name="submit" accesskey="s" value="'.&mt('Submit Changes and Edit').'" />	<input type="submit" name="submit" accesskey="s" value="'.&mt('Submit Changes and Edit').'" />
<input type="submit" name="submit" accesskey="v" value="'.&mt('Submit Changes and View').'" /><table><tr><td>'.	<input type="submit" name="submit" accesskey="v" value="'.&mt('Submit Changes and View').'" /><table><tr><td>'.
&Apache::loncommon::help_open_menu('','Problem Editing Help','Problem_Editor_XML_Index','',5,'Authoring',undef,undef,undef,'Problem Editing Help')	&Apache::loncommon::help_open_menu('','Problem Editing Help','Problem_Editor_XML_Index','',5,'Authoring',undef,undef,undef,'Problem Editing Help')
.'</td></tr></table>'.	.'</td></tr></table>'.
'<table border="0"><tr><td bgcolor="#DDDDDD">';	'<table border="0" width="100%"><tr><td bgcolor="#DDDDDD">';
}	}

sub problem_edit_footer {	sub problem_edit_footer {
return '</td></tr></table><br /><input type="submit" name="submit" value="'.&mt('Submit Changes and Edit').'" />	return '</td></tr></table><br /><input type="submit" name="submit" value="'.&mt('Submit Changes and Edit').'" />
<input type="submit" name="submit" value="'.&mt('Submit Changes and View').'" />'.	<input type="submit" name="submit" value="'.&mt('Submit Changes and View').'" />'.
&Apache::lonhtmlcommon::htmlareaselectactive(@Apache::lonxml::htmlareafields).	&Apache::lonhtmlcommon::htmlareaselectactive(&Apache::lonhtmlcommon::get_htmlareafields()).
"\n</form>\n</body>\n</html>";	"\n</form>\n".&Apache::loncommon::end_page();
}	}

sub option {	sub option {
my ($value,$name) = @_;	my ($value,$name) = @_;
my $result ="<option value='".$value."' ";	my $result ="<option value='".$value."' ";
if ($ENV{'form.'.$name} eq $value) {	if ($env{'form.'.$name} eq $value) {
$result.=" selected='on' ";	$result.=" selected='on' ";
}	}
$result.='>';	$result.='>';
Line 216 sub option {	Line 264 sub option {

sub problem_web_to_edit_header {	sub problem_web_to_edit_header {
my ($rndseed)=@_;	my ($rndseed)=@_;
my $result.='<input type="hidden" name="problemmode" value="'.&mt('View').'" />	my $result.='<input type="hidden" name="problemmode" value="'.&mt('View').'" />';
<input type="submit" name="problemmode" accesskey="e" value="'.&mt('Edit').'" />	if (!$Apache::lonhomework::parsing_a_task) {
<input type="submit" name="problemmode" accesskey="x" value="'.&mt('EditXML').'" />	$result .= '<input type="submit" name="problemmode" accesskey="e" value="'.&mt('Edit').'" />';
	}
	$result .= '<input type="submit" name="problemmode" accesskey="x" value="'.&mt('EditXML').'" />
<input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />	<input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
<input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />	<input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
<nobr><input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />	<nobr><input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
<input type="text" name="rndseed" width="10" value="'.	<input type="text" name="rndseed" size="10" value="'.
$rndseed.'"	$rndseed.'"
onChange="javascript:document.lonhomework.changerandseed.click()" /></nobr>	onchange="javascript:document.lonhomework.changerandseed.click()" /></nobr>
<input type="checkbox" name="showallfoils" ';	<label><input type="checkbox" name="showallfoils" ';
if (defined($ENV{'form.showallfoils'})) { $result.='checked="on"'; }	my $show_all_foils_text =
$result.= ' />'.&mt(' Show All Foils').	($Apache::lonhomework::parsing_a_task) ?
	&mt(' Show All Instances')
	: &mt(' Show All Foils');

	if (defined($env{'form.showallfoils'})) { $result.='checked="on"'; }
	$result.= ' />'.$show_all_foils_text.
&Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area','Testing Problems').	&Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area','Testing Problems').
'<hr />';	'</label><hr />';
$result.="	if (!$Apache::lonhomework::parsing_a_task) {
	$result.="
<nobr>	<nobr>
Problem Status:	Problem Status:
<select name='problemstate'>	<select name='problemstate'>
<option name=''></option>	<option value=''></option>
".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>	".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>	".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>	".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
Line 245 Problem Status:	Line 301 Problem Status:
<nobr>	<nobr>
Problem Type:	Problem Type:
<select name='problemtype'>	<select name='problemtype'>
<option name=''></option>	<option value=''></option>
".&option('exam' ,'problemtype').&mt("Exam Problem")."</option>	".&option('exam' ,'problemtype').&mt("Exam Problem")."</option>
".&option('problem','problemtype').&mt("Homework problem")."</option>	".&option('problem','problemtype').&mt("Homework problem")."</option>
".&option('survey' ,'problemtype').&mt("Survey Question")."</option>	".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
Line 261 Feedback Mode:	Line 317 Feedback Mode:
</nobr>	</nobr>
<input type='submit' name='changeproblemmode' value='".&mt("Change")."' />	<input type='submit' name='changeproblemmode' value='".&mt("Change")."' />
<hr />";	<hr />";
my $numtoanalyze=$ENV{'form.numtoanalyze'};	my $numtoanalyze=$env{'form.numtoanalyze'};
if (!$numtoanalyze) { $numtoanalyze=20; }	if (!$numtoanalyze) { $numtoanalyze=20; }
$result.= '<input type="submit" name="problemmode" value='.	$result.= '<input type="submit" name="problemmode" value='.
&mt('"Calculate answers').'" /> for	&mt('"Calculate answers').'" /> for
<input type="text" name="numtoanalyze" value="'.	<input type="text" name="numtoanalyze" value="'.
$numtoanalyze.'" size="5" /> '.&mt('versions of this problem').	$numtoanalyze.'" size="5" /> '.&mt('versions of this problem').
'.'.&Apache::loncommon::help_open_topic("Analyze_Problem",	'.'.&Apache::loncommon::help_open_topic("Analyze_Problem",
'',undef,undef,300).	'',undef,undef,300).
'<hr />';	'<hr />';
	}
return $result;	return $result;
}	}

Line 277 sub initialize_storage {	Line 334 sub initialize_storage {
%Apache::lonhomework::results=();	%Apache::lonhomework::results=();
%Apache::lonhomework::history=();	%Apache::lonhomework::history=();
my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();	my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
if ($ENV{'request.state'} eq 'construct' \|\| $symb eq '') {	if ($env{'request.state'} eq 'construct'
	\|\| $symb eq ''
	\|\| $Apache::lonhomework::type eq 'practice') {

	my $namespace = $symb \|\| $env{'request.uri'};
	if ($env{'form.resetdata'} eq &mt('Reset Submissions') \|\|
	$env{'form.resetdata'} eq &mt('New Problem Variation') \|\|
	$env{'form.newrandomization'} eq &mt('New Randomization')) {
	&Apache::lonnet::tmpreset($namespace,'',$domain,$name);
	&Apache::lonxml::debug("Attempt reset");
	}
%Apache::lonhomework::history=	%Apache::lonhomework::history=
&Apache::lonnet::tmprestore($ENV{'request.uri'},'',$domain,$name);	&Apache::lonnet::tmprestore($namespace,'',$domain,$name);
my ($temp)=keys %Apache::lonhomework::history ;	my ($temp)=keys %Apache::lonhomework::history ;
&Apache::lonxml::debug("Return message of $temp");	&Apache::lonxml::debug("Return message of $temp");
} else {	} else {
Line 295 sub initialize_storage {	Line 362 sub initialize_storage {
# Stores away the result has to a student's environment	# Stores away the result has to a student's environment
# checks form.grade_ for specific values, other wises stores	# checks form.grade_ for specific values, other wises stores
# to the running users environment	# to the running users environment
	# Will increment totals for attempts, students, and corrects
	# if running user has student role.
sub finalize_storage {	sub finalize_storage {
my $result;	my $result;
my ($temp) = keys %Apache::lonhomework::results;	if (%Apache::lonhomework::results) {
if ( $temp ne '' ) {	my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
	delete(@Apache::lonhomework::results{@remove});
my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();	my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
if ($ENV{'request.state'} eq 'construct' \|\| $symb eq '') {	if ($env{'request.state'} eq 'construct'
$Apache::lonhomework::results{'rndseed'}=$ENV{'form.rndseed'};	\|\| $symb eq ''
	\|\| $Apache::lonhomework::type eq 'practice') {
	my $namespace = $symb \|\| $env{'request.uri'};
	$Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
$result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,	$result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
$ENV{'request.uri'},'',$domain,$name);	$namespace,'',$domain,$name);
&Apache::lonxml::debug('Construct Store return message:'.$result);	&Apache::lonxml::debug('Construct Store return message:'.$result);
} else {	} else {
$result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,	$result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
$symb,$courseid,$domain,$name);	$symb,$courseid,$domain,$name);
&Apache::lonxml::debug('Store return message:'.$result);	&Apache::lonxml::debug('Store return message:'.$result);
	if ($env{'request.role'} =~/^st/) {
	&store_aggregates($symb,$courseid);
	}
}	}
	} else {
	&Apache::lonxml::debug('Nothing to store');
}	}
return $result;	return $result;
}	}
	use Data::Dumper;

	# -------------------------------------------------------------store_aggregates
	# Sends hash of values to be incremented in nohist_resourcetracker.db
	# for the course. Increments total number of attempts, unique students
	# and corrects for each part for an instance of a problem, as appropriate.
	sub store_aggregates {
	my ($symb,$courseid) = @_;
	my %aggregate;
	my @parts;
	my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
	my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
	foreach my $key (keys(%Apache::lonhomework::results)) {
	if ($key =~ /resource\.([^\.]+)\.tries/) {
	push(@parts, $1);
	}
	}
	foreach my $part (@parts) {
	if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
	eq 'APPROX_ANS' \|\|
	$Apache::lonhomework::results{'resource.'.$part.'.award'}
	eq 'EXACT_ANS') {
	$aggregate{$symb."\0".$part."\0correct"} = 1;
	}
	if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
	$aggregate{$symb."\0".$part."\0users"} = 1;
	} else {
	my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
	if ($last_reset) {
	if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
	$aggregate{$symb."\0".$part."\0users"} = 1;
	}
	}
	}
	$aggregate{$symb."\0".$part."\0attempts"} = 1;
	}
	if (keys (%aggregate) > 0) {
	&Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
	$cdomain,$cname);
	}
	}

sub checkout_msg {	sub checkout_msg {
my %lt=&Apache::lonlocal::texthash(	my %lt=&Apache::lonlocal::texthash(
Line 327 sub checkout_msg {	Line 446 sub checkout_msg {
<font color="red">	<font color="red">
<p>$lt{'warning'}</p>	<p>$lt{'warning'}</p>
</font>	</font>
<form name="checkout" method="POST" action="$ENV{'request.uri'}">	<form name="checkout" method="POST" action="$env{'request.uri'}">
<input type="hidden" name="doescheckout" value="yes" />	<input type="hidden" name="doescheckout" value="yes" />
<input type="button" name="checkoutbutton" value="$lt{'checkout'}" onClick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />	<input type="button" name="checkoutbutton" value="$lt{'checkout'}" onClick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
</form>	</form>
Line 341 sub firstaccess_msg {	Line 460 sub firstaccess_msg {
&Apache::lonxml::debug("map is $map title is $foldertitle");	&Apache::lonxml::debug("map is $map title is $foldertitle");
return (<<ENDCHECKOUT);	return (<<ENDCHECKOUT);
<h2>The resources in "$foldertitle" are open for a limited time. Once you click the 'Show Resource' button below you have $time to complete all resources "$foldertitle".</h2>	<h2>The resources in "$foldertitle" are open for a limited time. Once you click the 'Show Resource' button below you have $time to complete all resources "$foldertitle".</h2>
<form name="markaccess" method="POST" action="$ENV{'request.uri'}">	<form name="markaccess" method="POST" action="$env{'request.uri'}">
<input type="hidden" name="markaccess" value="yes" />	<input type="hidden" name="markaccess" value="yes" />
<input type="button" name="accessbutton" value="Show Resource" onClick="javascript:if (confirm('Start Timer?')) { document.markaccess.submit(); }" />	<input type="button" name="accessbutton" value="Show Resource" onClick="javascript:if (confirm('Start Timer?')) { document.markaccess.submit(); }" />
</form>	</form>
Line 351 ENDCHECKOUT	Line 470 ENDCHECKOUT
sub init_problem_globals {	sub init_problem_globals {
my ($type)=@_;	my ($type)=@_;
#initialize globals	#initialize globals
	# For problems, we start out in part 0 (outside a <part> tag).
	# and part 0 is used to describe the main body of the <problem>
	#
if ($type eq 'problem') {	if ($type eq 'problem') {
$Apache::inputtags::part='0';	$Apache::inputtags::part='0';
@Apache::inputtags::partlist=('0');	@Apache::inputtags::partlist=('0');
	$Apache::lonhomework::problemstatus=&get_problem_status('0');
	$Apache::lonhomework::ignore_response_errors=0;

$Apache::lonhomework::problemstatus=&get_problem_status('0')	} elsif ($type eq 'library') {
} else {
$Apache::inputtags::part='';	$Apache::inputtags::part='';
@Apache::inputtags::partlist=();	@Apache::inputtags::partlist=();
$Apache::lonhomework::problemstatus='';	$Apache::lonhomework::problemstatus='';
	$Apache::lonhomework::ignore_response_errors=1;

	} elsif ($type eq 'Task') {
	$Apache::inputtags::part='0';
	@Apache::inputtags::partlist=('0');
	$Apache::lonhomework::problemstatus='';
	$Apache::lonhomework::ignore_response_errors=1;
}	}
@Apache::inputtags::responselist = ();	@Apache::inputtags::responselist = ();
@Apache::inputtags::importlist = ();	@Apache::inputtags::importlist = ();
Line 387 sub reset_problem_globals {	Line 517 sub reset_problem_globals {

sub set_problem_state {	sub set_problem_state {
my ($part)=@_;	my ($part)=@_;
if ($ENV{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {	if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
$Apache::lonhomework::history{"resource.$part.solved"}=	$Apache::lonhomework::history{"resource.$part.solved"}=
'correct_by_student';	'correct_by_student';
}	}
Line 395 sub set_problem_state {	Line 525 sub set_problem_state {

sub get_problem_status {	sub get_problem_status {
my ($part)=@_;	my ($part)=@_;
my $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");	my $problem_status;
&Apache::lonxml::debug("problem status for $part is $problem_status");	if ($env{'request.state'} eq 'construct' &&
&Apache::lonxml::debug("env probstat is ".$ENV{'form.problemstatus'});	defined($env{'form.problemstatus'})) {
if ($ENV{'request.state'} eq 'construct' &&	$problem_status=$env{'form.problemstatus'};
defined($ENV{'form.problemstatus'})) {	} else {
$problem_status=$ENV{'form.problemstatus'};	$problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
	&Apache::lonxml::debug("problem status for $part is $problem_status");
	&Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
}	}
return $problem_status;	return $problem_status;
}	}

sub start_problem {	sub start_problem {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;	my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;

	# We'll use the redirection to fix up printing of duedates.
	if (!$Apache::lonxml::metamode) {
	&Apache::lonxml::startredirection();
	}

	# Problems don't nest and we don't allow more than one <problem> in
	# a .problem file.
	#
if ( $Apache::inputtags::part ne '' \|\|	if ( $Apache::inputtags::part ne '' \|\|
$Apache::lonhomework::parsing_a_problem) {	$Apache::lonhomework::parsing_a_problem) {
&Apache::lonxml::error('Only one <problem> allowed in a .problem file');	&Apache::lonxml::error('Only one <problem> allowed in a .problem file');
#my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser);	#my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
return '';	return '';
}	}

$Apache::lonhomework::parsing_a_problem=1;	$Apache::lonhomework::parsing_a_problem=1;
&init_problem_globals('problem');	&init_problem_globals('problem');

if (defined($ENV{'scantron.maxquest'})) {	if (defined($env{'scantron.maxquest'})) {
$Apache::lonhomework::scantronmode=1;	$Apache::lonhomework::scantronmode=1;
}	}

Line 427 sub start_problem {	Line 567 sub start_problem {
if ($target eq 'web') {	if ($target eq 'web') {
&Apache::lonhomework::showhash(%Apache::lonhomework::history);	&Apache::lonhomework::showhash(%Apache::lonhomework::history);
}	}
if ($ENV{'request.state'} eq 'construct') { &set_problem_state('0'); }	if ($env{'request.state'} eq 'construct') { &set_problem_state('0'); }
$Apache::lonhomework::type=&Apache::lonnet::EXT('resource.0.type');	$Apache::lonhomework::type=&Apache::lonnet::EXT('resource.0.type');
if (($ENV{'request.state'} eq 'construct') &&	if (($env{'request.state'} eq 'construct') &&
defined($ENV{'form.problemtype'})) {	defined($env{'form.problemtype'})) {
$Apache::lonhomework::type=$ENV{'form.problemtype'};	$Apache::lonhomework::type=$env{'form.problemtype'};
}	}
&Apache::lonxml::debug("Found this to be of type :$Apache::ltonhomework::type:");	&Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
}	}
if ($Apache::lonhomework::type eq '' ) {	if ($Apache::lonhomework::type eq '' ) {
my $uri=$ENV{'request.uri'};	my $uri=$env{'request.uri'};
if ($uri=~/\.(\w+)$/) {	if ($uri=~/\.(\w+)$/) {
$Apache::lonhomework::type=$1;	$Apache::lonhomework::type=$1;
&Apache::lonxml::debug("Using type of $1");	&Apache::lonxml::debug("Using type of $1");
Line 445 sub start_problem {	Line 585 sub start_problem {
&Apache::lonxml::debug("Using default type, problem, :$uri:");	&Apache::lonxml::debug("Using default type, problem, :$uri:");
}	}
}	}
	$Apache::lonhomework::default_type = $Apache::lonhomework::type;

#added vars to the scripting enviroment	#added vars to the scripting enviroment
my $expression='$external::part=\''.$Apache::inputtags::part.'\';';	my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
Line 453 sub start_problem {	Line 594 sub start_problem {
my $status;	my $status;
my $accessmsg;	my $accessmsg;

#should get back a <html> or the neccesary stuff to start XML/MathML	my $name= &get_resource_name($parstack,$safeeval);
my ($result,$head_tag_start,$body_tag_start,$form_tag_start)=	my ($result,$form_tag_start);
&page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);	if ($target eq 'web' \|\| $target eq 'webgrade' \|\| $target eq 'tex') {
if ($target eq 'tex' and $ENV{'request.symb'} =~ m/\.page_/) {$result='';}	($result,$form_tag_start) =
	&page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
	$name);
	}

	if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}

if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval); }	if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval); }
if ($target eq 'web' \|\| $target eq 'grade' \|\| $target eq 'answer' \|\|	if ($target eq 'web' \|\| $target eq 'grade' \|\| $target eq 'answer' \|\|
Line 465 sub start_problem {	Line 611 sub start_problem {
if ($Apache::lonhomework::type eq 'exam') {	if ($Apache::lonhomework::type eq 'exam') {
my $token=	my $token=
$Apache::lonhomework::history{"resource.0.outtoken"};	$Apache::lonhomework::history{"resource.0.outtoken"};
if (($ENV{'form.doescheckout'}) && (!$token)) {	if (($env{'form.doescheckout'}) && (!$token)) {
$token=&Apache::lonxml::maketoken();	$token=&Apache::lonxml::maketoken();
$Apache::lonhomework::history{"resource.0.outtoken"}=	$Apache::lonhomework::history{"resource.0.outtoken"}=
$token;	$token;
}	}
$body_tag_start.=&Apache::lonxml::printtokenheader($target,$token);	$result.=&Apache::lonxml::printtokenheader($target,$token);
}	}
if ($ENV{'form.markaccess'}) {	if ($env{'form.markaccess'}) {
&Apache::lonnet::set_first_access('map');	&Apache::lonnet::set_first_access('map');
}	}
#handle rand seed in construction space	#handle rand seed in construction space
my $rndseed=&setup_rndseed($safeeval);	my $rndseed=&setup_rndseed($safeeval);
my ($symb)=&Apache::lonxml::whichuser();	my ($symb)=&Apache::lonxml::whichuser();
if ($ENV{'request.state'} ne "construct" && $symb eq '') {	if ($env{'request.state'} ne "construct" &&
	($symb eq '' \|\| $Apache::lonhomework::type eq 'practice')) {
$form_tag_start.='<input type="hidden" name="rndseed" value="'.	$form_tag_start.='<input type="hidden" name="rndseed" value="'.
$rndseed.'" />'.	$rndseed.'" />'.
'<input type="submit" name="resetdata"	'<input type="submit" name="resetdata"
value="'.&mt('New Problem Variation').'" />'.	value="'.&mt('New Problem Variation').'" />';
	if (exists($env{'form.username'})) {
	$form_tag_start.=
'<input type="hidden" name="username"	'<input type="hidden" name="username"
value="'.$ENV{'form.username'}.'" /> <br />';	value="'.$env{'form.username'}.'" />';
	}
	if ($env{'request.role.adv'}) {
	$form_tag_start.=
	' <label><input type="checkbox" name="showallfoils" ';
	if (defined($env{'form.showallfoils'})) {
	$form_tag_start.='checked="on"';
	}
	$form_tag_start.= ' />'.&mt(' Show All Foils').
	'</label>';
	}
	$form_tag_start.='<hr />';
}	}
($status,$accessmsg) = &Apache::lonhomework::check_access('0');
	($status,$accessmsg,my $slot_name,my $slot) =
	&Apache::lonhomework::check_slot_access('0','problem');
push (@Apache::inputtags::status,$status);	push (@Apache::inputtags::status,$status);

my $expression='$external::datestatus="'.$status.'";';	my $expression='$external::datestatus="'.$status.'";';
$expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';	$expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
&Apache::run::run($expression,$safeeval);	&Apache::run::run($expression,$safeeval);
&Apache::lonxml::debug("Got $status");	&Apache::lonxml::debug("Got $status");

if (( $status eq 'CLOSED' ) \|\|	if (( $status eq 'CLOSED' ) \|\|
( $status eq 'UNCHECKEDOUT') \|\|	( $status eq 'UNCHECKEDOUT') \|\|
( $status eq 'NOT_YET_VIEWED') \|\|	( $status eq 'NOT_YET_VIEWED') \|\|
( $status eq 'BANNED') \|\|	( $status eq 'BANNED') \|\|
( $status eq 'UNAVAILABLE') \|\|	( $status eq 'UNAVAILABLE') \|\|
	( $status eq 'NOT_IN_A_SLOT') \|\|
( $status eq 'INVALID_ACCESS')) {	( $status eq 'INVALID_ACCESS')) {
my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser);	my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
	$style);
if ( $target eq "web" ) {	if ( $target eq "web" ) {
$result.= $head_tag_start.'</head>';	my $msg;
my $msg=$body_tag_start;
if ($status eq 'UNAVAILABLE') {	if ($status eq 'UNAVAILABLE') {
$msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';	$msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
} elsif ($status ne 'NOT_YET_VIEWED') {	} elsif ($status ne 'NOT_YET_VIEWED') {
Line 510 sub start_problem {	Line 675 sub start_problem {
if ($status eq 'CLOSED' \|\| $status eq 'INVALID_ACCESS') {	if ($status eq 'CLOSED' \|\| $status eq 'INVALID_ACCESS') {
$msg.='The problem '.$accessmsg;	$msg.='The problem '.$accessmsg;
} elsif ($status eq 'UNCHECKEDOUT') {	} elsif ($status eq 'UNCHECKEDOUT') {
$msg.=&checkout_msg;	$msg.=&checkout_msg();
} elsif ($status eq 'NOT_YET_VIEWED') {	} elsif ($status eq 'NOT_YET_VIEWED') {
$msg.=&firstaccess_msg($accessmsg,$symb);	$msg.=&firstaccess_msg($accessmsg,$symb);
	} elsif ($status eq 'NOT_IN_A_SLOT') {
	$msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work.");
}	}
$result.=$msg.'<br />';	$result.=$msg.'<br />';
} elsif ($target eq 'tex') {	} elsif ($target eq 'tex') {
$result.='\begin{document}\noindent \vskip 1 mm \begin{minipage}{\textwidth}\vskip 0 mm';	my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
	: '\begin{minipage}{\textwidth}';
	$result.='\begin{document}\noindent \vskip 1 mm '.
	$startminipage.'\vskip 0 mm';
if ($status eq 'UNAVAILABLE') {	if ($status eq 'UNAVAILABLE') {
$result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';	$result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
} else {	} else {
$result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";	$result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
}	}
}	}
	} elsif ($status eq 'NEEDS_CHECKIN') {
	my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
	$style);
	if ($target eq 'web') {
	$result .= &Apache::bridgetask::proctor_validation_screen();
	} elsif ($target eq 'grade') {
	&Apache::bridgetask::proctor_check_auth($slot_name,$slot,
	'problem');
	}
} elsif ($target eq 'web') {	} elsif ($target eq 'web') {
my $name= &get_resource_name($parstack,$safeeval);	$result.="\n $form_tag_start".
$result.="$head_tag_start<title>$name</title></head>
$body_tag_start \n $form_tag_start".
'<input type="hidden" name="submitted" value="yes" />';	'<input type="hidden" name="submitted" value="yes" />';
# create a page header and exit	# create a page header and exit
if ($ENV{'request.state'} eq "construct") {	if ($env{'request.state'} eq "construct") {
$result.= &problem_web_to_edit_header($ENV{'form.rndseed'});	$result.= &problem_web_to_edit_header($env{'form.rndseed'});
}	}
# if we are viewing someone else preserve that info	# if we are viewing someone else preserve that info
if (defined $ENV{'form.grade_symb'}) {	if (defined $env{'form.grade_symb'}) {
foreach my $field ('symb','courseid','domain','username') {	foreach my $field ('symb','courseid','domain','username') {
$result .= '<input type="hidden" name="grade_'.$field.	$result .= '<input type="hidden" name="grade_'.$field.
'" value="'.$ENV{"form.grade_$field"}.'" />'."\n";	'" value="'.$env{"form.grade_$field"}.'" />'."\n";
}	}
}	}
} elsif ($target eq 'tex') {	} elsif ($target eq 'tex') {
my $startminipage = '';	$result .= 'INSERTTEXFRONTMATTERHERE';
if (not $ENV{'form.problem_split'}=~/yes/) {
$startminipage = '\begin{minipage}{\textwidth}';
}
my $id = $Apache::inputtags::part;
my $weight = &Apache::lonnet::EXT("resource.$id.weight");
my $packages=&Apache::lonnet::metadata($ENV{'request.uri'},'packages');
my @packages = split /,/,$packages;
my $allow_print_points = 0;
foreach my $partial_key (@packages) {
if ($partial_key=~m/^part_0$/) {
$allow_print_points=1;
}
}
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;
my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
if ($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/ and $Apache::lonhomework::type ne 'exam') {
$result .= '\begin{document} \typeout{STAMPOFPASSEDRESOURCESTART Resource <h2>"'.$name_of_resourse.'"</h2> located in <br /><small><b>'.$ENV{'request.uri'}.'</b></small><br /> STAMPOFPASSEDRESOURCEEND} \noindent\textit{Due date: '.$duedate.'} \vskip 1 mm\noindent '.$startminipage.'\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
} else {
$result .= '\begin{document} \typeout{STAMPOFPASSEDRESOURCESTART Resource <h2>"'.$name_of_resourse.'"</h2> located in <br /><small><b>'.$ENV{'request.uri'}.'</b></small><br /> STAMPOFPASSEDRESOURCEEND} \noindent \vskip 1 mm \noindent'.$startminipage.'\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
}
} else {
$result .= '\vskip 1mm\textit{Due date: '.$duedate.'} \\\\\\\\';
}
} else {
if (not $ENV{'request.symb'} =~ m/\.page_/) {
$result .= '\begin{document} \typeout{STAMPOFPASSEDRESOURCESTART Resource <h2>"'.$name_of_resourse.'"</h2> located in <br /><small><b>'.$ENV{'request.uri'}.'</b></small><br /> STAMPOFPASSEDRESOURCEEND} \noindent \vskip 1 mm\noindent'.$startminipage.'\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
} else {
$result .= '\vskip 1mm \\\\\\\\';
}
}
}	}
} elsif ($target eq 'edit') {	} elsif ($target eq 'edit') {
$result.=$head_tag_start."</head>".$body_tag_start.$form_tag_start.	$result .= $form_tag_start.&problem_edit_header();
&problem_edit_header();
$Apache::lonxml::warnings_error_header=	$Apache::lonxml::warnings_error_header=
&mt("Editor Errors - these errors might not effect the running of the problem, but they will likely cause problems with further use of the Edit mode. Please use the EditXML mode to fix these errors.")."<br />";	&mt("Editor Errors - these errors might not effect the running of the problem, but they will likely cause problems with further use of the Edit mode. Please use the EditXML mode to fix these errors.")."<br />";
my $temp=&Apache::edit::insertlist($target,$token);	my $temp=&Apache::edit::insertlist($target,$token);
Line 608 sub start_problem {	Line 738 sub start_problem {

sub end_problem {	sub end_problem {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;	my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
my $result='';	my $result;

	if (!$Apache::lonxml::metamode) {
	$result = &Apache::lonxml::endredirection(); #started in &start_problem
	$Apache::lonxml::post_evaluate=0;
	}

	if ($target eq 'tex') {

	# Figure out the front matter and replace the
	# INSERTTEXFRONTMATTERHERE in result with it. note that we do
	# this in end_problem because whether or not we display due
	# dates depends on whether due dates have already been
	# displayed in the problem parts.

	my $frontmatter = '';
	my $startminipage = '';
	if (not $env{'form.problem_split'}=~/yes/) {
	$startminipage = '\begin{minipage}{\textwidth}';
	}
	my $id = $Apache::inputtags::part;
	my $weight = &Apache::lonnet::EXT("resource.$id.weight");
	my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
	my @packages = split /,/,$packages;
	my $allow_print_points = 0;
	foreach my $partial_key (@packages) {
	if ($partial_key=~m/^part_0$/) {
	$allow_print_points=1;
	}
	}
	my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
	if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
	if (lc($env{'course.'.$env{'request.course.id'}.
	'.disableexampointprint'}) eq 'yes') {
	$allow_print_points=0;
	}
	my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
	my $begin_doc='\begin{document} \typeout{STAMPOFPASSEDRESOURCESTART Resource <h2>"'.$name_of_resourse.'"</h2> located in <br /><small><b>'.$env{'request.uri'}.'</b></small><br /> STAMPOFPASSEDRESOURCEEND} \noindent ';
	my $toc_line='\vskip 1 mm\noindent '.$startminipage.
	'\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';

	# Figure out what the due date is and if we need to print
	# it in the problem header. We have been logging the
	# last due date written to file.

	my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
	my $duedate = POSIX::strftime("%c",localtime($duetime));
	my $temp_file;
	my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";

	# Figure out what the last printed due date is or set it
	# to the epoch if no duedates have been printed.

	my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
	if (-e $filename) {
	$temp_file = Apache::File->new($filename);
	my @due_file = <$temp_file>;
	$due_file_content = $due_file[$#due_file];
	chomp $due_file_content;
	}

	# We display the due date iff it is not the same as the last
	# duedate in problem header ($due_file_content), and
	# none of our parts displayed a duedate.
	#
	my $parts_with_displayduedate;
	if (defined $Apache::outputtags::showonce{'displayduedate'}) {
	$parts_with_displayduedate =
	scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
	} else {
	$parts_with_displayduedate = 0;
	}
	if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
	$temp_file = Apache::File->new('>'.$filename);
	print $temp_file "$duetime\n";
	if (not $env{'request.symb'} =~ m/\.page_/) {
	if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
	$frontmatter .= $begin_doc.
	'\textit{Due date: '.$duedate.'} '.$toc_line;
	} else {
	$frontmatter.= $begin_doc.$toc_line;
	if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
	}
	} else {
	$frontmatter .= '\vskip 1mm\textit{Due date: '.$duedate.'} \\\\\\\\';
	}
	} else {
	if (not $env{'request.symb'} =~ m/\.page_/) {
	$frontmatter .= $begin_doc.$toc_line;
	if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
	} else {
	$frontmatter .= '\vskip 1mm \\\\\\\\';
	}
	}
	$result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
	}

my $status=$Apache::inputtags::status['-1'];	my $status=$Apache::inputtags::status['-1'];
if ($target eq 'grade' \|\| $target eq 'web' \|\| $target eq 'answer' \|\|	if ($target eq 'grade' \|\| $target eq 'web' \|\| $target eq 'answer' \|\|
$target eq 'tex') {	$target eq 'tex') {
Line 616 sub end_problem {	Line 842 sub end_problem {
# if part is zero, no <part>s existed, so we need to the grading	# if part is zero, no <part>s existed, so we need to the grading
if ($status eq 'CAN_ANSWER' \|\|$Apache::lonhomework::scantronmode) {	if ($status eq 'CAN_ANSWER' \|\|$Apache::lonhomework::scantronmode) {
&Apache::inputtags::grade;	&Apache::inputtags::grade;
	} elsif ($status eq 'NEEDS_CHECKIN') {
	# no need to grade, and don't want to hide data
} else {	} else {
# move any submission data to .hidden	# move any submission data to .hidden
&Apache::inputtags::hidealldata($Apache::inputtags::part);	&Apache::inputtags::hidealldata($Apache::inputtags::part);
Line 629 sub end_problem {	Line 857 sub end_problem {
$result.= $gradestatus;	$result.= $gradestatus;
}	}
if (	if (
(($target eq 'web') && ($ENV{'request.state'} ne 'construct')) \|\|	(($target eq 'web') && ($env{'request.state'} ne 'construct')) \|\|
($target eq 'answer') \|\| ($target eq 'tex')	($target eq 'answer') \|\| ($target eq 'tex')
) {	) {
if ($target ne 'tex' &&	if ($target ne 'tex' &&
$ENV{'form.answer_output_mode'} ne 'tex') {	$env{'form.answer_output_mode'} ne 'tex') {
$result.="</form>";	$result.="</form>";
$result.=&Apache::lonhtmlcommon::htmlareaselectactive(@Apache::lonxml::htmlareafields);	$result.= &Apache::lonhtmlcommon::htmlareaselectactive(&Apache::lonhtmlcommon::get_htmlareafields());
$result.="</body>\n";
}	}
if ($target eq 'web') {	if ($target eq 'web') {
$result.=&Apache::lonxml::xmlend();	$result.= &Apache::loncommon::end_page({'discussion' => 1});
} elsif ($target eq 'tex') {	} elsif ($target eq 'tex') {
my $endminipage = '';	my $endminipage = '';
if (not $ENV{'form.problem_split'}=~/yes/) {	if (not $env{'form.problem_split'}=~/yes/) {
$endminipage = '\end{minipage}';	$endminipage = '\end{minipage}';
}	}
if ($ENV{'form.print_discussions'} eq 'yes') {	if ($env{'form.print_discussions'} eq 'yes') {
$result.=&Apache::lonxml::xmlend();	$result.=&Apache::lonxml::xmlend($target,$parser);
$result=~s/<\/html>//;
}
$result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
if (not $ENV{'request.symb'} =~ m/\.page_/) {
$result .= $endminipage.'\end{document} ';
} else {	} else {
$result .= '';	$result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
	if (not $env{'request.symb'} =~ m/\.page_/) {
	$result .= $endminipage.'\end{document} ';
	} else {
	$result .= '';
	}
}	}
}	}
}	}
Line 661 sub end_problem {	Line 888 sub end_problem {
&Apache::lonhomework::showhash(%Apache::lonhomework::results);	&Apache::lonhomework::showhash(%Apache::lonhomework::results);
&finalize_storage();	&finalize_storage();
}	}
if ($target eq 'answer' && ($ENV{'request.state'} eq 'construct')	if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
&& $ENV{'form.answer_output_mode'} ne 'tex') {	&& $env{'form.answer_output_mode'} ne 'tex') {
$result.='</html>'; # normally we get it from xmlend, but in CSTR	$result.=&Apache::loncommon::end_page({'discussion' => 1});
	# normally we get it from above, but in CSTR
# we always show answer mode too.	# we always show answer mode too.
}	}
} elsif ($target eq 'meta') {	} elsif ($target eq 'meta') {
Line 675 sub end_problem {	Line 903 sub end_problem {
$result.=&Apache::response::meta_response_order();	$result.=&Apache::response::meta_response_order();
} elsif ($target eq 'edit') {	} elsif ($target eq 'edit') {
&Apache::lonxml::debug("in end_problem with $target, edit");	&Apache::lonxml::debug("in end_problem with $target, edit");
$result = &problem_edit_footer();	$result .= &problem_edit_footer();
	} elsif ($target eq 'modified') {
	$result .= $token->[2];
	$result.=&Apache::edit::handle_insertafter($token->[1]);
}	}

if ($ENV{'request.state'} eq 'construct' && $target eq 'web') {	if ($env{'request.state'} eq 'construct' && $target eq 'web') {
&Apache::inputtags::check_for_duplicate_ids();	&Apache::inputtags::check_for_duplicate_ids();
}	}

Line 690 sub end_problem {	Line 921 sub end_problem {

sub start_library {	sub start_library {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;	my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
my ($result,$head_tag_start,$body_tag_start,$form_tag_start);	my ($result,$form_tag_start);
if ($$tagstack[0] eq 'library') {	if ($$tagstack[0] eq 'library') {
&init_problem_globals('library');	&init_problem_globals('library');
$Apache::lonhomework::type='problem';	$Apache::lonhomework::type='problem';
}	}
if ($target eq 'edit') {	if ($target eq 'edit') {
($result,$head_tag_start,$body_tag_start,$form_tag_start)=	($result,$form_tag_start)=
&page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);	&page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
$result.=$head_tag_start."</head>".$body_tag_start.$form_tag_start.	'Edit');
&problem_edit_header();	$result.=$form_tag_start.&problem_edit_header();
my $temp=&Apache::edit::insertlist($target,$token);	my $temp=&Apache::edit::insertlist($target,$token);
$result.=$temp;	$result.=$temp;
} elsif ($target eq 'modified') {	} elsif ($target eq 'modified') {
$result=$token->[4];	$result=$token->[4];
$result.=&Apache::edit::handle_insert();	$result.=&Apache::edit::handle_insert();
} elsif ($target eq 'web' && $$tagstack[0] ne 'problem' &&	} elsif (($target eq 'web' \|\| $target eq 'webgrade')
$ENV{'request.state'} eq "construct" ) {	&& $$tagstack[0] eq 'library'
($result,$head_tag_start,$body_tag_start,$form_tag_start)=	&& $env{'request.state'} eq "construct" ) {
&page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
my $name=&get_resource_name($parstack,$safeeval);	my $name=&get_resource_name($parstack,$safeeval);
	($result,$form_tag_start)=
	&page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
	$name);
my $rndseed=&setup_rndseed($safeeval);	my $rndseed=&setup_rndseed($safeeval);
$result.="$head_tag_start<title>$name</title></head>	$result.=" \n $form_tag_start".
$body_tag_start \n $form_tag_start".
'<input type="hidden" name="submitted" value="yes" />';	'<input type="hidden" name="submitted" value="yes" />';
$result.=&problem_web_to_edit_header($rndseed);	$result.=&problem_web_to_edit_header($rndseed);
}	}
Line 725 sub end_library {	Line 957 sub end_library {
if ($target eq 'edit') {	if ($target eq 'edit') {
$result=&problem_edit_footer();	$result=&problem_edit_footer();
} elsif ($target eq 'web' && $$tagstack[0] ne 'problem' &&	} elsif ($target eq 'web' && $$tagstack[0] ne 'problem' &&
$ENV{'request.state'} eq "construct") {	$env{'request.state'} eq "construct") {
$result.='</form></body>'.&Apache::lonxml::xmlend();	$result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
}	}
if ($$tagstack[0] eq 'library') { &reset_problem_globals('library') };	if ($$tagstack[0] eq 'library') { &reset_problem_globals('library') };
return $result;	return $result;
}	}

sub start_definetag {	sub start_definetag {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;	my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;

my $result;	my $result;

my $name = $token->[2]->{'name'};	my $name = $token->[2]->{'name'};
my $skip=&Apache::lonxml::get_all_text("/definetag",$parser);	my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
if ($name=~/^\//) {	if ($name=~/^\//) {
$result=	$result=
'<br /><table bgcolor="#FFBBBB"><tr><th>END <tt>'.$name.'</tt></th></tr>';	'<br /><table bgcolor="#FFBBBB"><tr><th>END <tt>'.$name.'</tt></th></tr>';
Line 761 sub start_block {	Line 993 sub start_block {

my $result;	my $result;

if ($target eq 'web' \|\| $target eq 'grade' \|\| $target eq 'answer' \|\|	if ($target eq 'web' \|\| $target eq 'grade' \|\| $target eq 'answer' \|\|
$target eq 'tex' \|\| $target eq 'analyze') {	$target eq 'tex' \|\| $target eq 'analyze' \|\| $target eq 'webgrade') {
my $code = $token->[2]->{'condition'};	my $code = $token->[2]->{'condition'};
if (defined($code)) {	if (defined($code)) {
if (!$Apache::lonxml::default_homework_loaded) {	if (!$Apache::lonxml::default_homework_loaded) {
Line 805 sub start_languageblock {	Line 1037 sub start_languageblock {

my $result;	my $result;

if ($target eq 'web' \|\| $target eq 'grade' \|\| $target eq 'answer' \|\|	if ($target eq 'web' \|\| $target eq 'grade' \|\| $target eq 'answer' \|\|
$target eq 'tex' \|\| $target eq 'analyze') {	$target eq 'tex' \|\| $target eq 'analyze' \|\| $target eq 'webgrade') {
my $include = $token->[2]->{'include'};	my $include = $token->[2]->{'include'};
my $exclude = $token->[2]->{'exclude'};	my $exclude = $token->[2]->{'exclude'};
my %languages=&Apache::loncommon::display_languages();	my %languages=&Apache::loncommon::display_languages();
Line 858 sub start_instructorcomment {	Line 1090 sub start_instructorcomment {

my $result;	my $result;

if ($target eq 'web' \|\| $target eq 'grade' \|\| $target eq 'answer' \|\|	if ($target eq 'web' \|\| $target eq 'grade' \|\| $target eq 'answer' \|\|
$target eq 'tex' \|\| $target eq 'analyze') {	$target eq 'tex' \|\| $target eq 'analyze' \|\| $target eq 'webgrade') {
$result=($ENV{'request.role'}=~/^(in\|cc\|au\|ca\|li)/);	$result=($env{'request.role'}=~/^(in\|cc\|au\|ca\|li)/);
if ( ! $result ) {	if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
my $skip=&Apache::lonxml::get_all_text("/instructorcomment",	my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
$parser,$style);	$parser,$style);
&Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");	&Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
Line 884 sub end_instructorcomment {	Line 1116 sub end_instructorcomment {
}	}

sub start_while {	sub start_while {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;	my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;

my $result;	my $result;
if ($target eq 'web' \|\| $target eq 'grade' \|\| $target eq 'answer' \|\|	if ($target eq 'web' \|\| $target eq 'grade' \|\| $target eq 'answer' \|\|
$target eq 'tex' \|\| $target eq 'analyze') {	$target eq 'tex' \|\| $target eq 'analyze' \|\| $target eq 'webgrade') {
my $code = $token->[2]->{'condition'};	my $code = $token->[2]->{'condition'};

push( @Apache::structuretags::whileconds, $code);	push( @Apache::structuretags::whileconds, $code);
Line 896 sub start_while {	Line 1128 sub start_while {
&Apache::lonxml::default_homework_load($safeeval);	&Apache::lonxml::default_homework_load($safeeval);
}	}
my $result = &Apache::run::run($code,$safeeval);	my $result = &Apache::run::run($code,$safeeval);
my $bodytext=&Apache::lonxml::get_all_text("/while",$parser);	my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
push( @Apache::structuretags::whilebody, $bodytext);	push( @Apache::structuretags::whilebody, $bodytext);
push( @Apache::structuretags::whileline, $token->[5]);	push( @Apache::structuretags::whileline, $token->[5]);
&Apache::lonxml::debug("s code $code got -$result-");	&Apache::lonxml::debug("s code $code got -$result-");
Line 920 sub end_while {	Line 1152 sub end_while {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;	my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
my $result;	my $result;

if ($target eq 'web' \|\| $target eq 'grade' \|\| $target eq 'answer' \|\|	if ($target eq 'web' \|\| $target eq 'grade' \|\| $target eq 'answer' \|\|
$target eq 'tex' \|\| $target eq 'analyze') {	$target eq 'tex' \|\| $target eq 'analyze' \|\| $target eq 'webgrade') {
my $code = pop(@Apache::structuretags::whileconds);	my $code = pop(@Apache::structuretags::whileconds);
my $bodytext = pop(@Apache::structuretags::whilebody);	my $bodytext = pop(@Apache::structuretags::whilebody);
my $line = pop(@Apache::structuretags::whileline);	my $line = pop(@Apache::structuretags::whileline);
Line 931 sub end_while {	Line 1163 sub end_while {
while ($return) {	while ($return) {
if (time-$starttime >	if (time-$starttime >
$Apache::lonnet::perlvar{'lonScriptTimeout'}) {	$Apache::lonnet::perlvar{'lonScriptTimeout'}) {
$return = 0; $error=1; next;	#$return = 0; $error=1; next;
}	}
$result.=&Apache::scripttag::xmlparse($bodytext);	$result.=&Apache::scripttag::xmlparse($bodytext);
$return = &Apache::run::run($code,$safeeval);	$return = &Apache::run::run($code,$safeeval);
}	}
if ($error) {	if ($error) {
&Apache::lonxml::error('<pre>'.&mt('Code ran too long. It ran for more than').' '.$Apache::lonnet::perlvar{'lonScriptTimeout'}.' '.&mt('seconds occured while running <while$gt; on line').' '.$line.'</pre>');	&Apache::lonxml::error('<pre>'.&mt('Code ran too long. It ran for more than').' '.$Apache::lonnet::perlvar{'lonScriptTimeout'}.' '.&mt('seconds occured while running <while> on line').' '.$line.'</pre>');
}	}
} elsif ($target eq "edit") {	} elsif ($target eq "edit") {
$result.= &Apache::edit::tag_end($target,$token,'');	$result.= &Apache::edit::tag_end($target,$token,'');
Line 952 sub end_while {	Line 1184 sub end_while {
# ...	# ...
# </randomlist>	# </randomlist>
sub start_randomlist {	sub start_randomlist {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;	my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
my $result;	my $result;
if ($target eq 'answer' \|\| $target eq 'grade' \|\| $target eq 'web' \|\|	if ($target eq 'answer' \|\| $target eq 'grade' \|\| $target eq 'web' \|\|
$target eq 'tex' \|\| $target eq 'analyze') {	$target eq 'tex' \|\| $target eq 'analyze' \|\| $target eq 'webgrade') {
my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);	my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
my $b_parser= HTML::TokeParser->new(\$body);	my $b_parser= HTML::LCParser->new(\$body);
	$b_parser->xml_mode(1);
	$b_parser->marked_sections(1);
my $b_tok;	my $b_tok;
my @randomlist;	my @randomlist;
my $list_item;	my $list_item;
Line 981 sub start_randomlist {	Line 1215 sub start_randomlist {
# print "<b>END-TAG $b_tok->[1]</b><br />";	# print "<b>END-TAG $b_tok->[1]</b><br />";
# }	# }
}	}
my @idx_arr = (0 .. $#randomlist);	if (@randomlist) {
&Apache::structuretags::shuffle(\@idx_arr);	my @idx_arr = (0 .. $#randomlist);
my $bodytext = '';	&Apache::structuretags::shuffle(\@idx_arr);
my $show=$#randomlist;	my $bodytext = '';
my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);	my $show=$#randomlist;
$showarg--;	my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }	$showarg--;
for(0 .. $show) {	if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
$bodytext .= "$randomlist[ $idx_arr[$_] ]";	for(0 .. $show) {
	$bodytext .= "$randomlist[ $idx_arr[$_] ]";
	}
	&Apache::lonxml::newparser($parser,\$bodytext);
}	}
&Apache::lonxml::newparser($parser,\$bodytext);
} elsif ($target eq 'edit' ) {	} elsif ($target eq 'edit' ) {
$result .=&Apache::edit::tag_start($target,$token);	$result .=&Apache::edit::tag_start($target,$token);
$result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',	$result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
Line 1008 sub start_randomlist {	Line 1244 sub start_randomlist {
sub shuffle {	sub shuffle {
my $a=shift;	my $a=shift;
my $i;	my $i;
if (defined(@$a)) {	if (ref($a) eq 'ARRAY' && @$a) {
&Apache::response::pushrandomnumber();	&Apache::response::pushrandomnumber();
for($i=@$a;--$i;) {	for($i=@$a;--$i;) {
my $j=int(&Math::Random::random_uniform() * ($i+1));	my $j=int(&Math::Random::random_uniform() * ($i+1));
Line 1029 sub end_randomlist {	Line 1265 sub end_randomlist {
return $result;	return $result;
}	}

	sub ordered_show_check {
	my $last_part=$Apache::inputtags::partlist[-2];
	my $in_order=
	&Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
	my $in_order_show=1;
	if ($last_part ne '0' && lc($in_order) eq 'yes') {
	$in_order_show=&Apache::response::check_status($last_part);
	}
	return $in_order_show;
	}

sub start_part {	sub start_part {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;	my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
	if (!$Apache::lonxml::metamode) {
	&Apache::lonxml::startredirection(); # we'll use redirection to fix up
	# duedates.
	}
my $result='';	my $result='';
my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);	my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);
if ($id eq '') { $id = $Apache::lonxml::curdepth; }	if ($id =~ /^\s*$/) { $id = $Apache::lonxml::curdepth; }
$Apache::inputtags::part=$id;	$Apache::inputtags::part=$id;
push(@Apache::inputtags::partlist,$id);	push(@Apache::inputtags::partlist,$id);
@Apache::inputtags::response=();	@Apache::inputtags::response=();
Line 1043 sub start_part {	Line 1294 sub start_part {
my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);	my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
my $newtype=&Apache::lonnet::EXT("resource.$id.type");	my $newtype=&Apache::lonnet::EXT("resource.$id.type");
if ($newtype) { $Apache::lonhomework::type=$newtype; }	if ($newtype) { $Apache::lonhomework::type=$newtype; }
	my $in_order_show=&ordered_show_check();
my $expression='$external::part=\''.$Apache::inputtags::part.'\';';	my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
$expression.='$external::type=\''.$Apache::lonhomework::type.'\';';	$expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
&Apache::run::run($expression,$safeeval);	&Apache::run::run($expression,$safeeval);
Line 1054 sub start_part {	Line 1305 sub start_part {
&Apache::response::meta_parameter_write('display','string',$display,'Part Description');	&Apache::response::meta_parameter_write('display','string',$display,'Part Description');
} elsif ($target eq 'web' \|\| $target eq 'grade' \|\|	} elsif ($target eq 'web' \|\| $target eq 'grade' \|\|
$target eq 'answer' \|\| $target eq 'tex') {	$target eq 'answer' \|\| $target eq 'tex') {
if ($hidden) {	if ($hidden \|\| !$in_order_show) {
my $bodytext=&Apache::lonxml::get_all_text("/part",$parser);	my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
} else {	} else {
my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);	my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
push (@Apache::inputtags::status,$status);	push (@Apache::inputtags::status,$status);
my $expression='$external::datestatus="'.$status.'";';	my $expression='$external::datestatus="'.$status.'";';
$expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';	$expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
&Apache::run::run($expression,$safeeval);	&Apache::run::run($expression,$safeeval);
if ($ENV{'request.state'} eq 'construct') {	if ($env{'request.state'} eq 'construct') {
&set_problem_state($Apache::inputtags::part);	&set_problem_state($Apache::inputtags::part);
}	}
if (( $status eq 'CLOSED' ) \|\|	if (( $status eq 'CLOSED' ) \|\|
Line 1071 sub start_part {	Line 1322 sub start_part {
( $status eq 'BANNED') \|\|	( $status eq 'BANNED') \|\|
( $status eq 'UNAVAILABLE') \|\|	( $status eq 'UNAVAILABLE') \|\|
( $status eq 'INVALID_ACCESS')) {	( $status eq 'INVALID_ACCESS')) {
my $bodytext=&Apache::lonxml::get_all_text("/part",$parser);	my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
	$style);
if ( $target eq "web" ) {	if ( $target eq "web" ) {
$result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";	$result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
} elsif ( $target eq 'tex' ) {	} elsif ( $target eq 'tex' ) {
if (not $ENV{'form.problem_split'}=~/yes/) {	if (not $env{'form.problem_split'}=~/yes/) {
$result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";	$result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
} else {	} else {
$result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";	$result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
Line 1083 sub start_part {	Line 1335 sub start_part {
}	}
} else {	} else {
if ($target eq 'tex') {	if ($target eq 'tex') {
if (not $ENV{'form.problem_split'}=~/yes/) {	if (not $env{'form.problem_split'}=~/yes/) {
$result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';	if ($$tagstack[-2] eq 'td') {
	$result.='\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
	} else {
	$result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
	}
}	}
my $weight = &Apache::lonnet::EXT("resource.$id.weight");	my $weight = &Apache::lonnet::EXT("resource.$id.weight");
my $allkeys=&Apache::lonnet::metadata($ENV{'request.uri'},'packages');	my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
my @allkeys = split /,/,$allkeys;	my @allkeys = split /,/,$allkeys;
my $allow_print_points = 0;	my $allow_print_points = 0;
foreach my $partial_key (@allkeys) {	foreach my $partial_key (@allkeys) {
Line 1095 sub start_part {	Line 1351 sub start_part {
if ($1 ne '0') {$allow_print_points=1;}	if ($1 ne '0') {$allow_print_points=1;}
}	}
}	}
	my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
	if (defined($maxtries) && $maxtries < 0) {
	$allow_print_points=0;
	}
	if (lc($env{'course.'.$env{'request.course.id'}.
	'.disableexampointprint'}) eq 'yes') {
	$allow_print_points=0;
	}
if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}	if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
} elsif ($target eq 'web') {	} elsif ($target eq 'web') {
$result.='<a name="'.&Apache::lonnet::escape($Apache::inputtags::part).'" />';	$result.='<a name="'.&Apache::lonnet::escape($Apache::inputtags::part).'" />';
Line 1126 sub end_part {	Line 1390 sub end_part {
&Apache::lonxml::debug("in end_part $target ");	&Apache::lonxml::debug("in end_part $target ");
my $status=$Apache::inputtags::status['-1'];	my $status=$Apache::inputtags::status['-1'];
my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);	my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
my $result='';	my $in_order_show=&ordered_show_check();
if ( $target eq 'meta' ) {	my $result;
$result='';	if (!$Apache::lonxml::metamode) {
} elsif ($target eq 'grade') {	$result = &Apache::lonxml::endredirection(); # started in &start_part
	$Apache::lonxml::post_evaluate=0;
	}
	if ($target eq 'grade') {
if (($status eq 'CAN_ANSWER' \|\| $Apache::lonhomework::scantronmode) &&	if (($status eq 'CAN_ANSWER' \|\| $Apache::lonhomework::scantronmode) &&
!$hidden) {	!$hidden && $in_order_show) {
$result=&Apache::inputtags::grade;	$result.=&Apache::inputtags::grade;
} else {	} else {
# move any submission data to .hidden	# move any submission data to .hidden
&Apache::inputtags::hidealldata($Apache::inputtags::part);	&Apache::inputtags::hidealldata($Apache::inputtags::part);
}	}
} elsif (($target eq 'web' \|\| $target eq 'tex') && !$hidden ) {	} elsif (($target eq 'web' \|\| $target eq 'tex') &&
	!$hidden && $in_order_show) {
my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,	my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
$target);	$target);
if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {	if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
$gradestatus='';	$gradestatus='';
}	}
$result=$gradestatus;	$result.=$gradestatus;
	if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
} elsif ($target eq 'edit') {	} elsif ($target eq 'edit') {
$result=&Apache::edit::end_table();	$result.=&Apache::edit::end_table();
	} elsif ($target eq 'modified') {
	$result .= $token->[2];
	$result.=&Apache::edit::handle_insertafter($token->[1]);
}	}
pop @Apache::inputtags::status;	pop @Apache::inputtags::status;
$Apache::inputtags::part='';	$Apache::inputtags::part='';
	$Apache::lonhomework::type = $Apache::lonhomework::default_type;
return $result;	return $result;
}	}

sub start_preduedate {	sub start_preduedate {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;	my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
if ($target eq 'web' \|\| $target eq 'grade' \|\| $target eq 'answer' \|\| $target eq 'tex') {	if ($target eq 'web' \|\| $target eq 'grade' \|\| $target eq 'answer' \|\|
	$target eq 'tex' \|\| $target eq 'webgrade') {
&Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);	&Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
if ($Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&	if (!$Apache::lonhomework::scantronmode &&
	$Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
$Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {	$Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
&Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));	&Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
&Apache::lonxml::get_all_text("/preduedate",$parser);	&Apache::lonxml::get_all_text("/preduedate",$parser,$style);
}	}
}	}
return '';	return '';
Line 1170 sub end_preduedate {	Line 1445 sub end_preduedate {
}	}

sub start_postanswerdate {	sub start_postanswerdate {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;	my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
if ($target eq 'web' \|\| $target eq 'grade') {	if ($target eq 'web' \|\| $target eq 'grade' \|\| $target eq 'webgrade') {
if ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER') {	if ($Apache::lonhomework::scantronmode \|\|
&Apache::lonxml::get_all_text("/postanswerdate",$parser);	$Apache::inputtags::status['-1'] ne 'SHOW_ANSWER') {
	&Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
}	}
} elsif ($target eq 'tex') {	} elsif ($target eq 'tex') {
&Apache::lonxml::get_all_text("/postanswerdate",$parser);	&Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
}	}
return '';	return '';
}	}
Line 1186 sub end_postanswerdate {	Line 1462 sub end_postanswerdate {
}	}

sub start_notsolved {	sub start_notsolved {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;	my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
if ($target eq 'web' \|\| $target eq 'grade' \|\| $target eq 'answer' \|\|	if ($target eq 'web' \|\| $target eq 'grade' \|\| $target eq 'answer' \|\|
$target eq 'tex') {	$target eq 'tex' \|\| $target eq 'webgrade') {
my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};	my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
&Apache::lonxml::debug("not solved has :$gradestatus:");	&Apache::lonxml::debug("not solved has :$gradestatus:");
if ($gradestatus =~ /^correct/ &&	if ($gradestatus =~ /^correct/ &&
&Apache::response::show_answer()) {	&Apache::response::show_answer()) {
&Apache::lonxml::debug("skipping");	&Apache::lonxml::debug("skipping");
&Apache::lonxml::get_all_text("/notsolved",$parser);	&Apache::lonxml::get_all_text("/notsolved",$parser,$style);
}	}
}	}
return '';	return '';
Line 1205 sub end_notsolved {	Line 1481 sub end_notsolved {
}	}

sub start_solved {	sub start_solved {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;	my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
if ($target eq 'web' \|\| $target eq 'grade' \|\| $target eq 'answer' \|\|	if ($target eq 'web' \|\| $target eq 'grade' \|\| $target eq 'answer' \|\|
$target eq 'tex') {	$target eq 'tex') {
my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};	my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
if ($gradestatus !~ /^correct/ \|\|	if ($gradestatus !~ /^correct/ \|\|
!&Apache::response::show_answer()) {	!&Apache::response::show_answer()) {
&Apache::lonxml::get_all_text("/solved",$parser);	&Apache::lonxml::get_all_text("/solved",$parser,$style);
}	}
}	}
return '';	return '';
Line 1222 sub end_solved {	Line 1498 sub end_solved {
}	}

sub start_problemtype {	sub start_problemtype {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;	my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
my $result;	my $result;
if ($target eq 'web' \|\| $target eq 'grade' \|\| $target eq 'answer' \|\|	if ($target eq 'web' \|\| $target eq 'grade' \|\| $target eq 'answer' \|\|
$target eq 'tex' \|\| $target eq 'analyze') {	$target eq 'tex' \|\| $target eq 'analyze' \|\| $target eq 'webgrade') {
my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));	my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
if (!defined($mode)) { $mode='show'; }	if (!defined($mode)) { $mode='show'; }
my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);	my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
Line 1234 sub start_problemtype {	Line 1510 sub start_problemtype {
if ($Apache::lonhomework::type eq lc($type)) { $found=1; }	if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
}	}
if ($mode eq 'show' && !$found) {	if ($mode eq 'show' && !$found) {
&Apache::lonxml::get_all_text("/problemtype",$parser);	&Apache::lonxml::get_all_text("/problemtype",$parser,$style);
}	}
if ($mode eq 'hide' && $found) {	if ($mode eq 'hide' && $found) {
&Apache::lonxml::get_all_text("/problemtype",$parser);	&Apache::lonxml::get_all_text("/problemtype",$parser,$style);
}	}
} elsif ($target eq 'edit') {	} elsif ($target eq 'edit') {
$result .=&Apache::edit::tag_start($target,$token);	$result .=&Apache::edit::tag_start($target,$token);
Line 1271 sub start_startouttext {	Line 1547 sub start_startouttext {
}	}

sub end_startouttext {	sub end_startouttext {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;	my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
my $result='';	my $result='';
my $text='';	my $text='';

if ($target eq 'edit') {	if ($target eq 'edit') {
$text=&Apache::lonxml::get_all_text("endouttext",$parser);	$text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
$result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>	$result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>
<td>".&mt('Delete:').	<td>".&mt('Delete:').
&Apache::edit::deletelist($target,$token)	&Apache::edit::deletelist($target,$token)
Line 1315 sub end_endouttext {	Line 1591 sub end_endouttext {
}	}

sub delete_startouttext {	sub delete_startouttext {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;	my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
# my $text=&Apache::lonxml::get_all_text("endouttext",$parser);	# my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
my $text=$$parser['-1']->get_text("/endouttext");	my $text=$$parser['-1']->get_text("/endouttext");
my $ntoken=$$parser['-1']->get_token();	my $ntoken=$$parser['-1']->get_token();
&Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");	&Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
Line 1331 sub delete_startouttext {	Line 1607 sub delete_startouttext {
sub start_simpleeditbutton {	sub start_simpleeditbutton {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;	my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
my $result='';	my $result='';
if (($target eq 'web') &&	if (($env{'form.simple_edit_button'} ne 'off') &&
(&Apache::lonnet::allowed('srm',$ENV{'request.course.id'}))) {	($target eq 'web') &&
my $url=$ENV{'request.noversionuri'};	(&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
	my $url=$env{'request.noversionuri'};
$url=~s/\?.*$//;	$url=~s/\?.*$//;
	my ($symb) = &Apache::lonxml::whichuser();
$result='<table width="100%" bgcolor="#FFFFAA" border="2"><tr><td>'.	$result='<table width="100%" bgcolor="#FFFFAA" border="2"><tr><td>'.
'<a href="'.$url.'/smpedit">'.&mt('Simple Problem Editor').'</a> - '.&mt('Note: it can take up to 10 minutes for changes to take effect for all users.').	'<a href="'.$url.'/smpedit?symb='.&Apache::lonnet::escape($symb).'">'.&mt('Edit').'</a> - '.&mt('Note: it can take up to 10 minutes for changes to take effect for all users.').
&Apache::loncommon::help_open_topic('Caching').'</td></tr></table><br />';	&Apache::loncommon::help_open_topic('Caching').'</td></tr></table><br />';
}	}
return $result;	return $result;

FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>

Removed from v.1.261
changed lines
	Added in v.1.351