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Diff for /loncom/homework/structuretags.pm between versions 1.321 and 1.478

version 1.321, 2005/11/15 21:13:42	version 1.478, 2010/11/03 17:06:28
Line 27	Line 27
#	#
###	###

	=pod

	=head1 NAME

	Apache::structuretags

	=head1 SYNOPSIS


	This is part of the LearningOnline Network with CAPA project
	described at http://www.lon-capa.org.


	=head1 NOTABLE SUBROUTINES

	=over

	=item

	=back

	=cut


package Apache::structuretags;	package Apache::structuretags;

Line 36 use Apache::File();	Line 59 use Apache::File();
use Apache::lonmenu;	use Apache::lonmenu;
use Apache::lonlocal;	use Apache::lonlocal;
use Apache::lonxml;	use Apache::lonxml;
	use Apache::londefdef;
	use Apache::lonenc();
use Time::HiRes qw( gettimeofday tv_interval );	use Time::HiRes qw( gettimeofday tv_interval );
	use lib '/home/httpd/lib/perl/';
	use LONCAPA;

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','translated','instructorcomment','while','randomlist','problem','library','web','tex','part','preduedate','postanswerdate','solved','notsolved','problemtype','startpartmarker','startouttext','endpartmarker','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);	if ($target ne 'edit' && $target ne 'modified') {
if ($target eq 'web') {	my $bodytext=&Apache::lonxml::get_all_text("/web",$parser,$style);
return $bodytext;	if ($target eq 'web' \|\| $target eq 'webgrade') {
	return $bodytext;
	}
	} elsif ($target eq "edit" ) {
	my $bodytext =
	&Apache::lonxml::get_all_text_unbalanced("/web",$parser);
	my $result = &Apache::edit::tag_start($target,$token);
	$result .= &Apache::edit::editfield($token->[1],$bodytext,'',80,1);
	return $result;
	} elsif ( $target eq "modified" ) {
	return $token->[4].&Apache::edit::modifiedfield("/web",$parser);
}	}
return '';	return '';
}	}
Line 55 sub end_web {	Line 93 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);	if ($target ne 'edit' && $target ne 'modified') {
if ($target eq 'tex') {	my $bodytext=&Apache::lonxml::get_all_text("/tex",$parser,$style);
return $bodytext.' ';	if ($target eq 'tex') {

	# If inside a table, occurrences of \\ must be removed;
	# else the table blows up.

	if (&Apache::londefdef::is_inside_of($tagstack, "table")) {
	$bodytext =~ s/\\\\//g;
	}
	return $bodytext.'{}';
	}
	} elsif ($target eq "edit" ) {
	my $bodytext =
	&Apache::lonxml::get_all_text_unbalanced("/tex",$parser);
	my $result = &Apache::edit::tag_start($target,$token);
	$result .= &Apache::edit::editfield($token->[1],$bodytext,'',80,1);
	return $result;
	} elsif ( $target eq "modified" ) {
	return $token->[4].&Apache::edit::modifiedfield("/tex",$parser);
}	}
return $result;;	return $result;;
}	}
Line 68 sub end_tex {	Line 123 sub end_tex {
return '';	return '';
}	}

sub body_tag_start {	sub homework_js {
my ($target,$background,$bgcolor)=@_;	return &Apache::loncommon::resize_textarea_js().
my $body_tag_start='<body onload="'.&Apache::lonmenu::loadevents().'" '.	&setmode_javascript().
'onunload="'.&Apache::lonmenu::unloadevents().'" ';	<<'JS';
if ($env{'browser.imagesuppress'} eq 'on') { $background=''; }	<script type="text/javascript">
if ($background) {	function setSubmittedPart (part) {
&Apache::lonxml::extlink($background);	this.document.lonhomework.submitted.value="part_"+part;
$body_tag_start.='background="'.$background.'" ';	}
} else {
if (($bgcolor) && ($env{'browser.blackwhite'} ne 'on')) {	function image_response_click (which, e) {
$body_tag_start.='bgcolor="'.$bgcolor.'" ';	init_geometry();
} else {	if (!e) { e = window.event; } //IE
$body_tag_start.='bgcolor="#ffffff"';	var input_element = document.lonhomework.elements[which];
}	var token_element = document.lonhomework.elements[which+'_token'];
}	var token = token_element.value;
if ($env{'browser.fontenhance'} eq 'on') {	var img_element = document.getElementById(which+'_imageresponse');
$body_tag_start.=' style="font-size: x-large;" ';	var x= e.clientX-getX(img_element)+Geometry.getHorizontalScroll();
	var y= e.clientY-getY(img_element)+Geometry.getVerticalScroll();
	var click = x+':'+y;
	input_element.value = click;
	img_element.src = '/adm/randomlabel.png?token='+token+'&clickdata='+click;
	}

	</script>
	JS
	}

	sub setmode_javascript {
	return <<"ENDSCRIPT";
	<script type="text/javascript">
	function setmode(form,probmode) {
	form.problemmode.value = probmode;
	form.submit();
	}
	</script>
	ENDSCRIPT
	}

	sub file_delchk_js {
	my $delfilewarn = &mt('You have indicated you wish to delete some files previously included for submission.').'\\n'.
	&mt('Deleted files will not be graded.').' '.
	&mt('Submit Answer?');
	return <<"ENDSCRIPT";
	<script type="text/javascript">
	function file_deletion_check(formname) {
	var str = new RegExp("^HWFILE.+_delete\$");
	var delfilecount = 0;
	var elemnum = formname.elements.length;
	if (elemnum == 0) {
	return true;
	}
	for (i=0; i<formname.elements.length; i++) {
	var id = formname.elements[i].id;
	if (id != '') {
	if (str.test(id)) {
	if (formname.elements[i].type == 'checkbox') {
	if (formname.elements[i].checked) {
	delfilecount ++;
	}
	}
	}
	}
}	}
$body_tag_start.='>'.&Apache::lonmenu::menubuttons(undef,$target,1);	if (delfilecount > 0) {
	if (confirm("$delfilewarn")) {
&Apache::lontexconvert::jsMath_reset();	return true;
if ($env{'environment.texengine'} eq 'jsMath') {	} else {
$body_tag_start.=&Apache::lontexconvert::jsMath_header();	return false;
	}
	} else {
	return true;
}	}
return $body_tag_start;	}
	</script>
	ENDSCRIPT
}	}

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 104 sub page_start {	Line 210 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().	$extra_head .= &homework_js().
&Apache::lonhtmlcommon::spellheader().	&Apache::lonhtmlcommon::dragmath_js("EditMathPopup");
&Apache::lonxml::fontsettings();	if (&Apache::lonhtmlcommon::htmlareabrowser()) {
}	my %textarea_args = (
my $body_tag_start;	dragmath => 'math',
if (!defined($found{'body'}) && $env{'request.state'} eq 'construct') {	);
if ($env{'environment.remote'} eq 'off') {	$extra_head .= &Apache::lonhtmlcommon::htmlareaselectactive(\%textarea_args);
if ($target eq 'web' \|\| $target eq 'edit') {	}
$body_tag_start=&Apache::loncommon::bodytag();	my $is_task = ($env{'request.uri'} =~ /\.task$/);
$body_tag_start.=&Apache::lonxml::message_location();	if ($is_task) {
}	$extra_head .= &file_delchk_js();
} else {	}
if ($target eq 'web' \|\| $target eq 'edit') {
$body_tag_start=&Apache::loncommon::bodytag(undef,undef,undef,1);	my %body_args;
$body_tag_start.=&Apache::lonxml::message_location();	if (defined($found{'html'})) {
}	$body_args{'skip_phases'}{'head'}=1;
	} else {

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

	$extra_head .= &Apache::londefdef::generate_css_links();

	if ($env{'request.state'} eq 'construct') {
	$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";
	}
	}

	my $pageheader = '';
	if (defined($found{'body'})) {
	$body_args{'skip_phases'}{'body'}=1;
	} elsif (!defined($found{'body'})
	&& $env{'request.state'} eq 'construct') {
	if ($target eq 'web' \|\| $target eq 'edit') {
	# Breadcrumbs for Construction Space
	&Apache::lonhtmlcommon::clear_breadcrumbs();
	&Apache::lonhtmlcommon::add_breadcrumb({
	'text' => 'Construction Space',
	'href' => &Apache::loncommon::authorspace(),
	});
	# breadcrumbs (and tools) will be created
	# in start_page->bodytag->innerregister

	# FIXME Where are we?
	# &Apache::lonhtmlcommon::add_breadcrumb({
	# 'text' => 'Problem Editing', # 'Problem Testing'
	# 'href' => '',
	# });
	$pageheader =&Apache::loncommon::head_subbox(
	&Apache::loncommon::CSTR_pageheader());
}	}
} elsif (!defined($found{'body'})) {	} elsif (!defined($found{'body'})) {
	my %add_entries;
my $background=&Apache::lonxml::get_param('background',$parstack,	my $background=&Apache::lonxml::get_param('background',$parstack,
$safeeval);	$safeeval);
	if ($background ne '' ) {
	$add_entries{'background'} = $background;
	}

my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,	my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
$safeeval);	$safeeval);
$body_tag_start=&body_tag_start($target,$background,$bgcolor);	if ($bgcolor eq '' ) { $bgcolor = '#FFFFFF'; }
if ( ($target eq 'web' \|\| $target eq 'webgrade')
&& $env{'request.state'} ne 'construct') {	$body_args{'bgcolor'} = $bgcolor;
my ($symb,undef,undef,undef,$publicuser)=	# $body_args{'no_title'} = 1;
&Apache::lonxml::whichuser();	$body_args{'force_register'} = 1;
if ($symb eq '' && !$publicuser) {	$body_args{'add_entries'} = \%add_entries;
my $help = &Apache::loncommon::help_open_topic("Ambiguous_Reference");	if ( $env{'request.state'} eq 'construct') {
$help=&mt("Browsing resource, all submissions are temporary.")."<br />";	$body_args{'only_body'} = 1;
$body_tag_start.=$help;	}
}	}
}	$body_args{'no_auto_mt_title'} = 1;
$body_tag_start.=&Apache::lonxml::message_location();	my $page_start = &Apache::loncommon::start_page($name,$extra_head,
	\%body_args);
	$page_start .= $pageheader;
	if (!defined($found{'body'})
	&& $env{'request.state'} ne 'construct'
	&& ($target eq 'web' \|\| $target eq 'webgrade')) {

	my ($symb,undef,undef,undef,$publicuser)= &Apache::lonnet::whichuser();
	if ($symb eq '' && !$publicuser) {
	$page_start .= '<p class="LC_info">'
	.&mt('Browsing resource, all submissions are temporary.')
	.'</p>';
	}
}	}

	if (!defined($found{'body'}) && $env{'request.state'} ne 'construct') {
	$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" enctype="multipart/form-data" method="POST" action="';	$form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="post" action="';
my $uri=$env{'request.uri'};	my $uri = &Apache::loncommon::inhibit_menu_check(
if ($env{'request.enc'}) { $uri=&Apache::lonenc::encrypted($uri); }	&Apache::lonenc::check_encrypt($env{'request.uri'}));
$form_tag_start.=$uri.'">';	$uri = &HTML::Entities::encode($uri,'<>&"');
	$form_tag_start.=$uri.'" ';
	if ($target eq 'edit') {
	$form_tag_start.=&Apache::edit::form_change_detection();
	}
	if ($is_task) {
	$form_tag_start .= ' onsubmit="return file_deletion_check(this);"';
	}
	$form_tag_start.='>'."\n";

	my $symb=&Apache::lonnet::symbread();
	if ($symb =~ /\S/) {
	$symb=
	&HTML::Entities::encode(&Apache::lonenc::check_encrypt($symb));
	$form_tag_start.=
	"\t".'<input type="hidden" name="symb" value="'.$symb.'" />'."\n";
	}
}	}
return ($result,$head_tag_start,$body_tag_start,$form_tag_start);	return ($page_start,$form_tag_start);
}	}

#use Time::HiRes();	#use Time::HiRes();
sub get_resource_name {	sub get_resource_name {
my ($parstack,$safeeval)=@_;	my ($parstack,$safeeval)=@_;
	my $name;
if (defined($Apache::lonhomework::name)) {	if (defined($Apache::lonhomework::name)) {
return $Apache::lonhomework::name;	$name = $Apache::lonhomework::name;
}	} else {
my ($symb)=&Apache::lonxml::whichuser();	my ($symb)=&Apache::lonnet::whichuser();
my $name=&Apache::lonnet::gettitle($symb);	$name=&Apache::lonnet::gettitle($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-;
	}
	# The name has had html tags escaped:

	$name=~s/</</gs;
	$name=~s/>/>/gs;

	$Apache::lonhomework::name=$name;
}	}
$Apache::lonhomework::name=$name;
return $name;	return $name;
}	}

sub setup_rndseed {	sub setup_rndseed {
my ($safeeval)=@_;	my ($safeeval)=@_;
my $rndseed;	my $rndseed;
my ($symb)=&Apache::lonxml::whichuser();	my ($symb)=&Apache::lonnet::whichuser();
if ($env{'request.state'} eq "construct" \|\| $symb eq '' \|\|	if ($env{'request.state'} eq "construct"
$Apache::lonhomework::history{'resource.CODE'}) {	\|\| $symb eq ''
	\|\| $Apache::lonhomework::type eq 'practice'
	\|\| $Apache::lonhomework::history{'resource.CODE'}) {
&Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},	&Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
['rndseed']);	['rndseed']);
$rndseed=$env{'form.rndseed'};	$rndseed=$env{'form.rndseed'};
Line 191 sub setup_rndseed {	Line 381 sub setup_rndseed {
}	}
$env{'form.rndseed'}=$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.submitted'} eq 'yes') \|\|
$env{'form.newrandomization'} eq &mt('New Randomization')) {	$env{'form.newrandomization'} eq &mt('New Randomization')) {
srand(time);	srand(time);
$rndseed=int(rand(2100000000));	$rndseed=int(rand(2100000000));
Line 220 sub remember_problem_state {	Line 411 sub remember_problem_state {
<input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';	<input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
}	}

	sub problem_edit_buttons {
	return '
	<div class="LC_edit_problem_discards">
	<input type="button" name="submitmode" accesskey="d" value="'.&mt('Discard Edits and View').'" '.
	' onclick="javscript:setmode(this.form,'."'discard'".')" />
	<input '.&Apache::edit::submit_ask_anyway('setmode(this.form,'."'editxml'".')').' type="button" name="submitmode" accesskey="x" value="'.&mt('EditXML').'" />
	<input type="submit" name="Undo" accesskey="u" value="'.&mt('undo').'" />
	</div>
	<div class="LC_edit_problem_saves">
	<input type="submit" name="submitbutton" accesskey="s" value="'.&mt('Save and Edit').'" />
	<input type="submit" name="submitbutton" accesskey="v" value="'.&mt('Save and View').'" />
	</div>';
	}

sub problem_edit_header {	sub problem_edit_header {
return '<input type="hidden" name="submitted" value="edit" />'.	return '<input type="hidden" name="submitted" value="edit" /><input type="hidden" name="problemmode" value="edit" />'.
&Apache::structuretags::remember_problem_state().'	&Apache::structuretags::remember_problem_state().'
<input type="hidden" name="problemmode" value="'.&mt('Edit').'" />	<div class="LC_edit_problem_header">
<input type="submit" name="problemmode" accesskey="d" value="'.&mt('Discard Edits and View').'" />	<div class="LC_edit_problem_header_title">
<input type="submit" name="problemmode" accesskey="x" value="'.&mt('EditXML').'" />	'.&mt('Problem Editing').&Apache::loncommon::help_open_menu('Problem Editing','Problem_Editor_XML_Index',5,'Authoring').'
<input type="submit" name="Undo" accesskey="u" value="'.&mt('undo').'" /> <hr />	</div>'.
<input type="submit" name="submit" accesskey="s" value="'.&mt('Submit Changes and Edit').'" />	&problem_edit_buttons().'
<input type="submit" name="submit" accesskey="v" value="'.&mt('Submit Changes and View').'" /><table><tr><td>'.	<hr style="clear:both;" />
&Apache::loncommon::help_open_menu('','Problem Editing Help','Problem_Editor_XML_Index','',5,'Authoring',undef,undef,undef,'Problem Editing Help')	'.&Apache::lonxml::message_location().'
.'</td></tr></table>'.	</div>
'<table border="0" width="100%"><tr><td bgcolor="#DDDDDD">';	'.
	'<table border="0" width="100%"><tr><td bgcolor="#F8F8F8">';
}	}

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 View').'" />'.	<div class="LC_edit_problem_footer">
&Apache::lonhtmlcommon::htmlareaselectactive(@Apache::lonxml::htmlareafields).	<hr />'.
"\n</form>\n".&Apache::loncommon::endbodytag()."\n</html>";	&problem_edit_buttons().'
	<hr style="clear:both;" />
	</div>
	'.
	"\n</form>\n".&Apache::loncommon::end_page();
}	}

sub option {	sub option {
Line 253 sub option {	Line 463 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 .= '<div class="LC_edit_problem_header">';

if (!$Apache::lonhomework::parsing_a_task) {	if (!$Apache::lonhomework::parsing_a_task) {
$result .= '<input type="submit" name="problemmode" accesskey="e" value="'.&mt('Edit').'" />';	$result .=
	'<div class="LC_edit_problem_header_title">'.
	&mt('Problem Testing').
	&Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area').
	'</div>';
	} else {
	$result .=
	'<div class="LC_edit_problem_header_title">'.
	&mt('Task Testing').
	'</div>';
}	}
$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="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
<nobr><input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
<input type="text" name="rndseed" size="10" value="'.
$rndseed.'"
onchange="javascript:document.lonhomework.changerandseed.click()" /></nobr>
<label><input type="checkbox" name="showallfoils" ';
my $show_all_foils_text =	my $show_all_foils_text =
($Apache::lonhomework::parsing_a_task) ?	($Apache::lonhomework::parsing_a_task) ?
&mt(' Show All Instances')	&mt('Show All Instances')
: &mt(' Show All Foils');	: &mt('Show All Foils');

	my $show_all= '<span class="LC_nobreak"><label for="showallfoils">'
	.'<input type="checkbox" name="showallfoils"';
	if (defined($env{'form.showallfoils'})) { $show_all.=' checked="checked"'; }
	$show_all.= ' /> '.$show_all_foils_text
	.'</label></span>';


if (defined($env{'form.showallfoils'})) { $result.='checked="on"'; }
$result.= ' />'.$show_all_foils_text.	$result .= '<div class="LC_edit_problem_header_status_row">';
&Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area','Testing Problems').
'</label><hr />';
if (!$Apache::lonhomework::parsing_a_task) {	if (!$Apache::lonhomework::parsing_a_task) {
$result.="	$result.="
<nobr>	<div class='LC_edit_problem_header_row1'>
Problem Status:	<span class=\"LC_nobreak\">
	".&mt("Problem Status:")."
<select name='problemstate'>	<select name='problemstate'>
<option value=''></option>	<option value=''></option>
".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>	".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
Line 286 Problem Status:	Line 505 Problem Status:
".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>	".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>	".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
</select>	</select>
</nobr>	</span>
<nobr>	<span class=\"LC_nobreak\">
Problem Type:	".&mt("Problem Type:")."
<select name='problemtype'>	<select name='problemtype'>
<option value=''></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>
	".&option('surveycred' ,'problemtype').&mt("Survey Question (with credit)")."</option>
	".&option('anonsurvey' ,'problemtype').&mt("Anonymous Survey Question")."</option>
	".&option('anonsurveycred' ,'problemtype').&mt("Anonymous Survey Question (with credit)")."</option>
	".&option('practice' ,'problemtype').&mt("Practice Problem")."</option>
</select>	</select>
</nobr>	</span>
<nobr>	$show_all
Feedback Mode:	</div>
	<div class='LC_edit_problem_header_row2'>
	<span class=\"LC_nobreak\">
	".&mt("Feedback Mode:")."
<select name='problemstatus'>	<select name='problemstatus'>
<option value=''></option>	<option value=''></option>
".&option('yes','problemstatus').&mt("Show Feedback")."</option>	".&option('yes','problemstatus').&mt("Show Feedback")."</option>
".&option('no', 'problemstatus').&mt("Don't Show Feedback")."</option>	".&option('no', 'problemstatus').&mt("Don't Show Incorect/Correct Feedback")."</option>
	".&option('no_feedback_ever', 'problemstatus').&mt("Don't Show Any Feedback")."</option>
	</select>
	</span>
	";

	} elsif ($Apache::lonhomework::parsing_a_task) {
	$result.="
	<div class='LC_edit_problem_header_row1'>
	<span class=\"LC_nobreak\">
	".&mt("Problem Status:")."
	<select name='problemstate'>
	<option value=''></option>
	".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
	".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
	".&option('WEB_GRADE' ,'problemstate').&mt("Criteria Grading")."</option>
	".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Feedback")."</option>
</select>	</select>
</nobr>	</span>
<input type='submit' name='changeproblemmode' value='".&mt("Change")."' />	$show_all
<hr />";	";
	}
	$result.='
	<span class="LC_nobreak">
	'.&mt('Apply style file: ').'
	<input type="text" name="style_file" value="'.&HTML::Entities::encode($env{'construct.style'},'"<>&').'" />
	<a href="javascript:openbrowser(\'lonhomework\',\'style_file\',\'sty\')">'.&mt('Select').'</a>
	</span>
	</div>
	<div class="LC_edit_problem_header_row1">'.
	&Apache::lonxml::renderingoptions().'
	</div>
	<input type="submit" name="changeproblemmode" value="'.&mt("Change View").'" />
	<input type="submit" name="clear_style_file" accesskey="d" value="'.&mt('Show Default View').'" />
	<input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
	</div>
	<hr />
	<div class="LC_edit_problem_header_randomize_row">
	<input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
	<input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
	<input type="text" name="rndseed" size="10" value="'.
	$rndseed.'"
	onchange="javascript:document.lonhomework.changerandseed.click()" />';

	if (!$Apache::lonhomework::parsing_a_task) {
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 .= '<span class="LC_nobreak">'.
&mt('"Calculate answers').'" /> for	&mt('[_1] for [_2] versions.',
<input type="text" name="numtoanalyze" value="'.	'<input type="button" name="submitmode" value="'.&mt('Calculate answers').'" '.
$numtoanalyze.'" size="5" /> '.&mt('versions of this problem').	'onclick="javascript:setmode(this.form,'."'calcanswers'".')" />'
'.'.&Apache::loncommon::help_open_topic("Analyze_Problem",	,'<input type="text" name="numtoanalyze" value="'.
'',undef,undef,300).	$numtoanalyze.'" size="5" />').
'<hr />';	&Apache::loncommon::help_open_topic("Analyze_Problem",'',undef,undef,300).
}	'</span>';

	}

	$result.='
	</div>
	<hr />
	<div>';
	$result.='<input type="hidden" name="problemmode" value="view" />';
	$result .= '<input type="button" name="submitmode" accesskey="e" value="'.&mt('Edit').'" '.
	'onclick="javascript:setmode(this.form,'."'edit'".')" />';
	$result .= '<input type="button" name="submitmode" accesskey="x" value="'.&mt('EditXML').'" '.
	'onclick="javascript:setmode(this.form,'."'editxml'".')" />';
	$result.='
	</div>
	<hr />
	'.&Apache::lonxml::message_location().'
	</div>';
return $result;	return $result;
}	}

sub initialize_storage {	sub initialize_storage {
%Apache::lonhomework::results=();	my ($given_symb) = @_;
%Apache::lonhomework::history=();	undef(%Apache::lonhomework::results);
my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();	undef(%Apache::lonhomework::history);
if ($env{'request.state'} eq 'construct' \|\| $symb eq '') {	my ($symb,$courseid,$domain,$name) =
	&Apache::lonnet::whichuser($given_symb);

	# anonymous users (CODEd exams) have no data
	if ($name eq 'anonymous'
	&& !defined($domain)) {
	return;
	}

	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.submitted'} eq 'yes') \|\|
	$env{'form.newrandomization'} eq &mt('New Randomization')) {
	&Apache::lonnet::tmpreset($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 $temp");
} else {	} else {
%Apache::lonhomework::history=	%Apache::lonhomework::history=
&Apache::lonnet::restore($symb,$courseid,$domain,$name);	&Apache::lonnet::restore($symb,$courseid,$domain,$name);
}	}

#ignore error conditions	#ignore error conditions
my ($temp)=keys %Apache::lonhomework::history ;	my ($temp)=keys %Apache::lonhomework::history ;
if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }	if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
}	}

# -------------------------------------------------------------finalize_storage	=pod
# Stores away the result has to a student's environment
# checks form.grade_ for specific values, other wises stores	=item finalize_storage()
# to the running users environment
# Will increment totals for attempts, students, and corrects	Stores away the result has to a student's environment
# if running user has student role.	checks form.grade_ for specific values, other wises stores
	to the running users environment
	Will increment totals for attempts, students, and corrects
	if running user has student role.

	=cut


sub finalize_storage {	sub finalize_storage {
	my ($given_symb) = @_;
my $result;	my $result;
if (%Apache::lonhomework::results) {	if (%Apache::lonhomework::results) {
my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();	my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
if ($env{'request.state'} eq 'construct' \|\| $symb eq '') {	delete(@Apache::lonhomework::results{@remove});
	my ($symb,$courseid,$domain,$name) =
	&Apache::lonnet::whichuser($given_symb);
	if ($env{'request.state'} eq 'construct'
	\|\| $symb eq ''
	\|\| $Apache::lonhomework::type eq 'practice') {
	my $namespace = $symb \|\| $env{'request.uri'};
$Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};	$Apache::lonhomework::results{'rndseed'}=$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,$courseid);
&store_aggregates($symb,$courseid);
}
}	}
	} else {
	&Apache::lonxml::debug('Nothing to store');
}	}
return $result;	return $result;
}	}
use Data::Dumper;

# -------------------------------------------------------------store_aggregates	=pod
# Sends hash of values to be incremented in nohist_resourcetracker.db
# for the course. Increments total number of attempts, unique students	item store_aggregates()
# and corrects for each part for an instance of a problem, as appropriate.
	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.

	=cut

sub store_aggregates {	sub store_aggregates {
my ($symb,$courseid) = @_;	my ($symb,$courseid) = @_;
my %aggregate;	my (%aggregate,%anoncounter);
my @parts;	my @parts;
my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};	my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};	my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
Line 381 sub store_aggregates {	Line 704 sub store_aggregates {
}	}
}	}
foreach my $part (@parts) {	foreach my $part (@parts) {
if ($Apache::lonhomework::results{'resource.'.$part.'.award'}	if ($env{'request.role'} =~/^st/) {
eq 'APPROX_ANS' \|\|	if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
$Apache::lonhomework::results{'resource.'.$part.'.award'}	eq 'APPROX_ANS' \|\|
eq 'EXACT_ANS') {	$Apache::lonhomework::results{'resource.'.$part.'.award'}
$aggregate{$symb."\0".$part."\0correct"} = 1;	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".$part."\0attempts"} = 1;
}	}
if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {	if (($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurvey') \|\|
$aggregate{$symb."\0".$part."\0users"} = 1;	($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurveycred')) {
} else {	$anoncounter{$symb."\0".$part} = 1;
my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);	my $needsrelease = $Apache::lonnet::needsrelease{'parameter:type:'.$Apache::lonhomework::results{'resource.'.$part.'.type'}};
if ($last_reset) {	if ($needsrelease) {
if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {	my $curr_required = $env{'course.'.$env{'request.course.id'}.'.internal.releaserequired'};
$aggregate{$symb."\0".$part."\0users"} = 1;	if ($curr_required eq '') {
	&Apache::lonnet::update_released_required($needsrelease);
	} else {
	my ($currmajor,$currminor) = split(/\./,$curr_required);
	my ($needsmajor,$needsminor) = split(/\./,$needsrelease);
	if (($currmajor < $needsmajor) \|\| ($currmajor == $needsmajor && $currminor < $needsminor)) {
	&Apache::lonnet::update_released_required($needsrelease);
	}
}	}
}	}
}	}
$aggregate{$symb."\0".$part."\0attempts"} = 1;
}	}
if (keys (%aggregate) > 0) {	if (keys (%aggregate) > 0) {
&Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,	&Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
$cdomain,$cname);	$cdomain,$cname);
}	}
	if (keys(%anoncounter) > 0) {
	&Apache::lonnet::cinc('nohist_anonsurveys',\%anoncounter,
	$cdomain,$cname);
	}
}	}

sub checkout_msg {	sub checkout_msg {
Line 412 sub checkout_msg {	Line 758 sub checkout_msg {
'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',	'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
'checkout'=>'Check out Exam for Viewing',	'checkout'=>'Check out Exam for Viewing',
'checkout?'=>'Check out Exam?');	'checkout?'=>'Check out Exam?');
	my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
return (<<ENDCHECKOUT);	return (<<ENDCHECKOUT);
<h2>$lt{'resource'}</h2>	<h2>$lt{'resource'}</h2>
<p>$lt{'id_expln'}</p>	<p>$lt{'id_expln'}</p>
<font color="red">	<p class="LC_warning">$lt{'warning'}</p>
<p>$lt{'warning'}</p>	<form name="checkout" method="post" action="$uri">
</font>
<form name="checkout" method="POST" action="$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 427 ENDCHECKOUT	Line 772 ENDCHECKOUT

sub firstaccess_msg {	sub firstaccess_msg {
my ($time,$symb)=@_;	my ($time,$symb)=@_;
my ($map)=&Apache::lonnet::decode_symb($symb);	my $result;
my $foldertitle=&Apache::lonnet::gettitle($map);	my @interval=&Apache::lonnet::EXT("resource.0.interval");
&Apache::lonxml::debug("map is $map title is $foldertitle");	if ($interval[1] eq 'map') {
return (<<ENDCHECKOUT);	my ($map)=&Apache::lonnet::decode_symb($symb);
<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>	my $foldertitle=&Apache::lonnet::gettitle($map);
<form name="markaccess" method="POST" action="$env{'request.uri'}">
	&Apache::lonxml::debug("map is $map title is $foldertitle");
	$result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.'
	.' Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
	,$foldertitle,$time)."</h2>";
	} elsif ($interval[1] eq 'course') {
	my $course = $env{'course.'.$env{'request.course.id'}.'.description'};
	$result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.'
	.' Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
	,$course,$time)."</h2>";
	} else {
	my $title=&Apache::lonnet::gettitle($symb);
	$result .= "<h2>".&mt('This resource "[_1]" is open for a limited time.'
	.' Once you click the "Show Resource" button below you have [_2] to complete this resource "[_1]".'
	,$title,$time)."</h2>";
	}
	my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
	my $buttontext = &mt('Show Resource');
	my $timertext = &mt('Start Timer?');
	$result .= (<<ENDCHECKOUT);
	<form name="markaccess" method="post" action="$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="$buttontext" onClick="javascript:if (confirm('$timertext')) { document.markaccess.submit(); }" />
</form>	</form>
ENDCHECKOUT	ENDCHECKOUT
	return $result;
}	}

sub init_problem_globals {	sub init_problem_globals {
Line 448 sub init_problem_globals {	Line 814 sub init_problem_globals {
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::set_show_problem_status(&get_problem_status('0'));
$Apache::lonhomework::ignore_response_errors=0;	$Apache::lonhomework::ignore_response_errors=0;

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

} elsif ($type eq 'Task') {	} elsif ($type eq 'Task') {
$Apache::inputtags::part='0';	$Apache::inputtags::part='0';
@Apache::inputtags::partlist=('0');	@Apache::inputtags::partlist=('0');
$Apache::lonhomework::problemstatus='';	&Apache::lonhomework::reset_show_problem_status();
$Apache::lonhomework::ignore_response_errors=1;	$Apache::lonhomework::ignore_response_errors=1;
}	}
	@Apache::functionplotresponse::callscripts=();
@Apache::inputtags::responselist = ();	@Apache::inputtags::responselist = ();
@Apache::inputtags::importlist = ();	@Apache::inputtags::importlist = ();
@Apache::inputtags::previous=();	@Apache::inputtags::previous=();
Line 473 sub init_problem_globals {	Line 840 sub init_problem_globals {
@Apache::structuretags::whileline=();	@Apache::structuretags::whileline=();
$Apache::lonhomework::scantronmode=0;	$Apache::lonhomework::scantronmode=0;
undef($Apache::lonhomework::name);	undef($Apache::lonhomework::name);
	undef($Apache::lonhomework::default_type);
	undef($Apache::lonhomework::type);
}	}

sub reset_problem_globals {	sub reset_problem_globals {
Line 485 sub reset_problem_globals {	Line 853 sub reset_problem_globals {
#detect if we try to do 2 problems in one file	#detect if we try to do 2 problems in one file
# undef($Apache::lonhomework::parsing_a_problem);	# undef($Apache::lonhomework::parsing_a_problem);
undef($Apache::lonhomework::name);	undef($Apache::lonhomework::name);
	undef($Apache::lonhomework::default_type);
	undef($Apache::lonhomework::type);
	undef($Apache::lonhomework::scantronmode);
	undef($Apache::lonhomework::ignore_response_errors);
	undef(@Apache::functionplotresponse::callscripts);
	&Apache::lonhomework::reset_show_problem_status();
}	}

sub set_problem_state {	sub set_problem_state {
Line 510 sub get_problem_status {	Line 884 sub get_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.	# We'll use the redirection to fix up printing of duedates.
if (!$Apache::lonxml::metamode) {	if (!$Apache::lonxml::metamode) {
Line 523 sub start_problem {	Line 897 sub start_problem {
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 '';
}	}

Line 534 sub start_problem {	Line 908 sub start_problem {
$Apache::lonhomework::scantronmode=1;	$Apache::lonhomework::scantronmode=1;
}	}

&initialize_storage();
if ($target ne 'analyze') {	if ($target ne 'analyze') {
if ($target eq 'web') {	my $type = &Apache::lonnet::EXT('resource.0.type');
&Apache::lonhomework::showhash(%Apache::lonhomework::history);	$Apache::lonhomework::type=$type;
}
if ($env{'request.state'} eq 'construct') { &set_problem_state('0'); }
$Apache::lonhomework::type=&Apache::lonnet::EXT('resource.0.type');
if (($env{'request.state'} eq 'construct') &&	if (($env{'request.state'} eq 'construct') &&
defined($env{'form.problemtype'})) {	$env{'form.problemtype'} =~ /\S/) {
$Apache::lonhomework::type=$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'};
Line 559 sub start_problem {	Line 929 sub start_problem {
}	}
$Apache::lonhomework::default_type = $Apache::lonhomework::type;	$Apache::lonhomework::default_type = $Apache::lonhomework::type;

	&initialize_storage();
	if ($target ne 'analyze'
	&& $env{'request.state'} eq 'construct') {
	&set_problem_state('0');
	}

	if ($target eq 'web') {
	&Apache::lonxml::debug(" grading history ");
	&Apache::lonhomework::showhash(%Apache::lonhomework::history);
	}

#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.'\';';
$expression.='$external::type=\''.$Apache::lonhomework::type.'\';';	$expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
Line 566 sub start_problem {	Line 947 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'
	\|\| $target eq 'edit') {
	($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 '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' \|\|
$target eq 'tex') {	$target eq 'tex') {
#handle exam checkout
if ($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,$token);
}
if ($env{'form.markaccess'}) {	if ($env{'form.markaccess'}) {
&Apache::lonnet::set_first_access('map');	my @interval=&Apache::lonnet::EXT("resource.0.interval");
	&Apache::lonnet::set_first_access($interval[1]);
}	}
#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::lonnet::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'}.'" />';	value="'.$env{'form.username'}.'" />';
if ($env{'user.adv'}) {	}
$form_tag_start.=	if ($env{'request.role.adv'}) {
' <label><input type="checkbox" name="showallfoils" ';	$form_tag_start.= ' <label class="LC_nobreak">'
	.'<input type="checkbox" name="showallfoils"';
if (defined($env{'form.showallfoils'})) {	if (defined($env{'form.showallfoils'})) {
$form_tag_start.='checked="on"';	$form_tag_start.=' checked="checked"';
}	}
$form_tag_start.= ' />'.&mt(' Show All Foils').	$form_tag_start.= ' /> '
'</label>';	.&mt('Show All Foils')
	.'</label>';
}	}
	if ($Apache::lonhomework::type eq 'practice') {
	$form_tag_start.=&practice_problem_header();
	}
$form_tag_start.='<hr />';	$form_tag_start.='<hr />';
}	}
($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 eq 'NOT_IN_A_SLOT') {
	$msg.='<h1>'.&mt('You are not currently signed up to work at this time and/or place.').'</h1>';
} elsif ($status ne 'NOT_YET_VIEWED') {	} elsif ($status ne 'NOT_YET_VIEWED') {
$msg.='<h1>'.&mt('Not open to be viewed').'</h1>';	$msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
}	}
if ($status eq 'CLOSED' \|\| $status eq 'INVALID_ACCESS') {	if ($status eq 'CLOSED' \|\| $status eq 'INVALID_ACCESS') {
$msg.='The problem '.$accessmsg;	$msg.=&mt('The problem ').$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.='\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') {
	$result .=
	&Apache::bridgetask::proctor_validation_screen($slot);
	} 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,$safeeval);	if ($status eq 'CAN_ANSWER'
$result.="$head_tag_start<title>$name</title></head>	&& $slot_name ne ''
$body_tag_start \n $form_tag_start".	&& $Apache::lonhomework::history{'resource.0.checkedin'} eq '') {
	# unproctored slot access, self checkin
	&Apache::bridgetask::check_in('problem',undef,undef,
	$slot_name);
	}
	$result.="\n $form_tag_start \t".
'<input type="hidden" name="submitted" value="yes" />';	'<input type="hidden" name="submitted" value="yes" />';
# create a page header and exit	# create a page header and exit
if ($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 ($Apache::lonhomework::type eq 'practice') {
	$result.= '<input type="submit" name="resetdata" '.
	'value="'.&mt('New Problem Variation').'" />'.
	&practice_problem_header().'<hr />';
	}
}	}
# 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'}) {
Line 667 sub start_problem {	Line 1084 sub start_problem {

}	}
} 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);
$result.=$temp;	$result.=$temp;
} elsif ($target eq 'modified') {	} elsif ($target eq 'modified') {
$result=$token->[4];	$result=$token->[4];
$result.=&Apache::edit::handle_insert();
} else {	} else {
# page_start returned a starting result, delete it if we don't need it	# page_start returned a starting result, delete it if we don't need it
$result = '';	$result = '';
Line 689 sub end_problem {	Line 1104 sub end_problem {

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

if ($target eq 'tex') {	if ($target eq 'tex') {

# Figure out the front matter and replace the	# Figure out the front matter and replace the
# INSERTTEXFRONTMATTERHERE in result with it. note that we do	# INSERTTEXFRONTMATTERHERE in result with it. note that we do
# this in end_problem because whether or not we display due	# this in end_problem because whether or not we display due
Line 721 sub end_problem {	Line 1136 sub end_problem {
$allow_print_points=0;	$allow_print_points=0;
}	}
my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');	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 $begin_doc=' \typeout{STAMPOFPASSEDRESOURCESTART Resource <h2>"'.$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.	my $toc_line='\vskip 1 mm\noindent '.$startminipage.
'\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';	'\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';

Line 731 sub end_problem {	Line 1146 sub end_problem {

my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");	my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
my $duedate = POSIX::strftime("%c",localtime($duetime));	my $duedate = POSIX::strftime("%c",localtime($duetime));
	my $duedate_text = &mt('Due date: [_1]'
	,&Apache::lonlocal::locallocaltime($duetime));
my $temp_file;	my $temp_file;
my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";	my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";

Line 762 sub end_problem {	Line 1179 sub end_problem {
if (not $env{'request.symb'} =~ m/\.page_/) {	if (not $env{'request.symb'} =~ m/\.page_/) {
if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {	if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
$frontmatter .= $begin_doc.	$frontmatter .= $begin_doc.
'\textit{Due date: '.$duedate.'} '.$toc_line;	'\textit{'.$duedate_text.'} '.$toc_line;
} else {	} else {
$frontmatter.= $begin_doc.$toc_line;	$frontmatter.= $begin_doc.$toc_line;
if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}	if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) {
	$frontmatter .= '\fbox{\textit{'.$weight.' pt}}';
	}
}	}
} else {	} else {
$frontmatter .= '\vskip 1mm\textit{Due date: '.$duedate.'} \\\\\\\\';	$frontmatter .= '\vskip 1mm\textit{'.$duedate_text.'} \\\\\\\\'.$startminipage;
}	}
} else {	} else {
if (not $env{'request.symb'} =~ m/\.page_/) {	if (not $env{'request.symb'} =~ m/\.page_/) {
$frontmatter .= $begin_doc.$toc_line;	$frontmatter .= $begin_doc.$toc_line;
if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}	if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) {
	$frontmatter .= '\fbox{\textit{'.$weight.' pt}}';
	}
} else {	} else {
$frontmatter .= '\vskip 1mm \\\\\\\\';	$frontmatter .= '\vskip 1mm \\\\\\\\'.$startminipage;
}	}
}	}
$result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;	$result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
Line 788 sub end_problem {	Line 1209 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($Apache::inputtags::part);
Line 807 sub end_problem {	Line 1230 sub end_problem {
if ($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>";
$result.=&Apache::lonhtmlcommon::htmlareaselectactive(@Apache::lonxml::htmlareafields);
}	}
if ($target eq 'web') {	if ($target eq 'web') {
$result.=&Apache::lonxml::xmlend().'</html>';	$result.= &Apache::loncommon::end_page({'discussion' => 1});
} elsif ($target eq 'tex') {	} elsif ($target eq 'tex') {
my $endminipage = '';	my $endminipage = '';
if (not $env{'form.problem_split'}=~/yes/) {	if (not $env{'form.problem_split'}=~/yes/) {
Line 818 sub end_problem {	Line 1240 sub end_problem {
}	}
if ($env{'form.print_discussions'} eq 'yes') {	if ($env{'form.print_discussions'} eq 'yes') {
$result.=&Apache::lonxml::xmlend($target,$parser);	$result.=&Apache::lonxml::xmlend($target,$parser);
$result=~s/<\/html>//;
} else {	} else {
$result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';	$result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
if (not $env{'request.symb'} =~ m/\.page_/) {	if (not $env{'request.symb'} =~ m/\.page_/) {
$result .= $endminipage.'\end{document} ';	$result .= $endminipage.'\end{document} ';
} else {	} else {
$result .= '';	$result .= $endminipage;
}	}
}	}
}	}
}	}
	if ($target eq 'web') {
	$result.=&Apache::functionplotresponse::init_script();
	}
if ($target eq 'grade') {	if ($target eq 'grade') {
&Apache::lonhomework::showhash(%Apache::lonhomework::results);	&Apache::lonhomework::showhash(%Apache::lonhomework::results);
&finalize_storage();	&finalize_storage();
}	}
if ($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.=&Apache::lonxml::xmlend().'</html>';	$result.=&Apache::loncommon::end_page({'discussion' => 1});
# normally we get it from above, but in CSTR	# normally we get it from above, but in CSTR
# we always show answer mode too.	# we always show answer mode too.
}	}
Line 851 sub end_problem {	Line 1275 sub end_problem {
$result .= &problem_edit_footer();	$result .= &problem_edit_footer();
} elsif ($target eq 'modified') {	} elsif ($target eq 'modified') {
$result .= $token->[2];	$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') {
Line 866 sub end_problem {	Line 1289 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 ($$tagstack[0] eq 'library') {	if ($#$tagstack eq 0 && $$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];
$result.=&Apache::edit::handle_insert();	} elsif (($target eq 'web' \|\| $target eq 'webgrade')
} elsif ($target eq 'web' && $$tagstack[0] ne 'problem' &&	&& ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
$env{'request.state'} eq "construct" ) {	&& $env{'request.state'} eq "construct" ) {
($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 $name=&get_resource_name($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);
	if ($Apache::lonhomework::type eq 'practice') {
	$result.= '<input type="submit" name="resetdata" '.
	'value="'.&mt('New Problem Variation').'" />'.
	&practice_problem_header().'<hr />';
	}
}	}
return $result;	return $result;
}	}
Line 900 sub end_library {	Line 1328 sub end_library {
my $result='';	my $result='';
if ($target eq 'edit') {	if ($target eq 'edit') {
$result=&problem_edit_footer();	$result=&problem_edit_footer();
} elsif ($target eq 'web' && $$tagstack[0] ne 'problem' &&	} elsif ($target eq 'web'
$env{'request.state'} eq "construct") {	&& ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
$result.='</form>'.&Apache::loncommon::endbodytag().	&& $env{'request.state'} eq "construct") {
&Apache::lonxml::xmlend();	$result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
	}
	if ( $#$tagstack eq 0 && $$tagstack[0] eq 'library') {
	&reset_problem_globals('library');
}	}
if ($$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 ($target eq 'web') {
$result=	if ($name=~/^\//) {
'<br /><table bgcolor="#FFBBBB"><tr><th>END <tt>'.$name.'</tt></th></tr>';	$result=
} else {	'<br /><table class="LC_sty_end"><tr><th>'.
$result=	&mt('END [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
'<br /><table bgcolor="#BBFFBB"><tr><th>BEGIN <tt>'.$name.'</tt></th></tr>';	} else {
	$result=
	'<br /><table class="LC_sty_begin"><tr><th>'.
	&mt('BEGIN [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
	}
	$skip = &HTML::Entities::encode($skip, '<>&"');
	$result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
}	}
$skip=~s/\</\&lt\;/gs;
$skip=~s/\>/\&gt\;/gs;
$result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
return $result;	return $result;
}	}

Line 938 sub start_block {	Line 1371 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) && $code ne '') {
if (!$Apache::lonxml::default_homework_loaded) {	if (!$Apache::lonxml::default_homework_loaded) {
&Apache::lonxml::default_homework_load($safeeval);	&Apache::lonxml::default_homework_load($safeeval);
}	}
Line 982 sub start_languageblock {	Line 1415 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 @preferred_languages=&Apache::lonlocal::preferred_languages();
$result='1';	# This should not even happen, since we should at least have the server language
if ($include) {	if (!$preferred_languages[0]) { $preferred_languages[0]='en'; }
$result='';	# Now loop over all languages in order of preference
foreach (split(/\,/,$include)) {	foreach my $preferred_language (@preferred_languages) {
if ($languages{$_}) { $result='1'; }	# If the languageblock has no arguments, show the contents
}	$result=1;
}	my $found=0;
if ($exclude) {	# Do we have an include argument?
foreach (split(/\,/,$exclude)) {	if ($include) {
if ($languages{$_}) { $result='0'; }	# If include is specified, by default, don't render the block
}	$result=0;
}	foreach my $included_language (split(/\,/,$include)) {
	# ... but if my preferred language is included, render it
	if ($included_language eq $preferred_language) {
	$result=1;
	$found=1;
	}
	}
	}
	# Do we have an exclude argument?
	if ($exclude) {
	$result=1;
	foreach my $excluded_language (split(/\,/,$exclude)) {
	if ($excluded_language eq $preferred_language) {
	$result=0;
	$found=1;
	}
	}
	}
	if ($found) { last; }
	}
if ( ! $result ) {	if ( ! $result ) {
my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,	my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
$style);	$style);
Line 1030 sub end_languageblock {	Line 1482 sub end_languageblock {
return $result;	return $result;
}	}

	{
	my %available_texts;
	sub start_translated {
	my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
	&Apache::lonxml::register('Apache::structuretags',('lang'));
	undef(%available_texts);
	}

	sub end_translated {
	my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
	my $result;
	#show the translation on viewable targets
	if ($target eq 'web' \|\| $target eq 'tex' \|\| $target eq 'webgrade'\|\|
	# or non-viewable targets, if it's embedded in something that
	# wants the output
	(($target eq 'answer' \|\| $target eq 'analyze'\|\| $target eq 'grade')
	&& &Apache::lonxml::in_redirection() ) ) {
	my @possibilities = keys(%available_texts);
	my $which =
	&Apache::loncommon::languages(\@possibilities) \|\| 'default';
	$result = $available_texts{$which};
	}
	undef(%available_texts);
	&Apache::lonxml::deregister('Apache::structuretags',('lang'));
	return $result;
	}


	sub start_lang {
	my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
	if ($target eq 'web' \|\| $target eq 'grade' \|\| $target eq 'answer' \|\|
	$target eq 'tex' \|\| $target eq 'analyze' \|\| $target eq 'webgrade') {
	&Apache::lonxml::startredirection();
	}
	return '';
	}

	sub end_lang {
	my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
	if ($target eq 'web' \|\| $target eq 'grade' \|\| $target eq 'answer' \|\|
	$target eq 'tex' \|\| $target eq 'analyze' \|\| $target eq 'webgrade') {
	my $result = &Apache::lonxml::endredirection();
	my $which = &Apache::lonxml::get_param('which',$parstack,
	$safeeval);
	if ($which=~/\w/) {
	$available_texts{$which} = $result;
	}
	my $otherlangs = &Apache::lonxml::get_param('other',$parstack,
	$safeeval);
	foreach my $language (split(/\s\,\s/,$otherlangs)) {
	if ($language=~/\w/) {
	$available_texts{$language} = $result;
	}
	}

	}
	return '';
	}
	}

sub start_instructorcomment {	sub start_instructorcomment {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;	my ($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') {
$result=($env{'request.role'}=~/^(in\|cc\|au\|ca\|li)/);	$result=($env{'request.role'}=~/^(in\|cc\|co\|au\|ca\|li)/);
if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {	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);
Line 1061 sub end_instructorcomment {	Line 1573 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, $code);
Line 1073 sub start_while {	Line 1585 sub start_while {
&Apache::lonxml::default_homework_load($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 1097 sub end_while {	Line 1609 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 $line = pop(@Apache::structuretags::whileline);
Line 1108 sub end_while {	Line 1620 sub end_while {
while ($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);
	if ($target eq 'grade' \|\| $target eq 'answer' \|\|
	$target eq 'analyze') {
	# grade/answer/analyze should produce no output but if we
	# are redirecting, the redirecter should know what to do
	# with the output
	if (!$Apache::lonxml::redirection) { undef($result); }
	}
$return = &Apache::run::run($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> on line').' '.$line.'</pre>');	&Apache::lonxml::error('<pre>'.&mt('Code ran too long. It ran for more than').' '.$Apache::lonnet::perlvar{'lonScriptTimeout'}.' '.&mt('seconds occurred 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,$token,'');
Line 1129 sub end_while {	Line 1648 sub end_while {
# ...	# ...
# </randomlist>	# </randomlist>
sub start_randomlist {	sub start_randomlist {
my ($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::LCParser->new(\$body);	my $b_parser= HTML::LCParser->new(\$body);
$b_parser->xml_mode(1);	$b_parser->xml_mode(1);
Line 1168 sub start_randomlist {	Line 1687 sub start_randomlist {
my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);	my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
$showarg--;	$showarg--;
if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }	if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
	if (($target eq 'analyze') && ($env{'form.check_parts_withrandomlist'})) {
	my @currlist;
	my $part = $Apache::inputtags::part;
	if ($part ne '') {
	if (ref($Apache::lonhomework::analyze{'parts_withrandomlist'}) eq 'ARRAY') {
	my @currlist = @{$Apache::lonhomework::analyze{'parts_withrandomlist'}};
	if (!(grep(/^\Q$part\E$/,@currlist))) {
	push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
	}
	} else {
	push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
	}
	}
	}
for(0 .. $show) {	for(0 .. $show) {
$bodytext .= "$randomlist[ $idx_arr[$_] ]";	$bodytext .= "$randomlist[ $idx_arr[$_] ]";
}	}
Line 1221 sub ordered_show_check {	Line 1754 sub ordered_show_check {
return $in_order_show;	return $in_order_show;
}	}

sub start_part {
	sub start_startpartmarker {
	my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
	my $result='';
	if ($target eq 'edit') {
	$result=&Apache::edit::tag_start($target,$token);
	$result.=&mt('Marker for the start of a part. Place end marker below to wrap in-between tags into a new part.').'</td></tr>';
	$result.=&Apache::edit::end_table();

	}
	return $result;
	}

	sub end_startpartmarker {
	my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
	my @result;
	if ($target eq 'edit') { $result[1]='no'; }
	return @result;
	}

	sub start_endpartmarker {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;	my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
	my $result='';
	if ($target eq 'edit') {
	$result=&Apache::edit::tag_start($target,$token);
	$result.=&mt('Marker for the end of a part. Place start marker above to wrap in-between tags into a new part.').'</td></tr>';
	$result.=&Apache::edit::end_table();

	}
	return $result;
	}

	sub end_endpartmarker {
	my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
	my @result;
	if ($target eq 'edit') { $result[1]='no'; }
	return @result;
	}





	sub start_part {
	my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
if (!$Apache::lonxml::metamode) {	if (!$Apache::lonxml::metamode) {
&Apache::lonxml::startredirection(); # we'll use redirection to fix up	&Apache::lonxml::startredirection(); # we'll use redirection to fix up
# duedates.	# duedates.
}	}
my $result='';	my $result='';
my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);	my $id= &Apache::lonxml::get_id($parstack,$safeeval);
if ($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=();
@Apache::inputtags::previous=();	@Apache::inputtags::previous=();
@Apache::inputtags::previous_version=();	@Apache::inputtags::previous_version=();
$Apache::lonhomework::problemstatus=&get_problem_status($id);	&Apache::lonhomework::set_show_problem_status(&get_problem_status($id));
	&Apache::response::reset_params();

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; }
Line 1251 sub start_part {	Line 1828 sub start_part {
} 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 \|\| !$in_order_show) {	if ($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);
Line 1267 sub start_part {	Line 1844 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 ( $target eq 'tex' ) {
Line 1281 sub start_part {	Line 1859 sub start_part {
if ($target eq 'tex') {	if ($target eq 'tex') {
if (not $env{'form.problem_split'}=~/yes/) {	if (not $env{'form.problem_split'}=~/yes/) {
if ($$tagstack[-2] eq 'td') {	if ($$tagstack[-2] eq 'td') {
$result.='\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';	$result.='\noindent \begin{minipage}{\textwidth}\noindent';
} else {	} else {
$result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';	$result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
}	}
Line 1303 sub start_part {	Line 1881 sub start_part {
'.disableexampointprint'}) eq 'yes') {	'.disableexampointprint'}) eq 'yes') {
$allow_print_points=0;	$allow_print_points=0;
}	}
if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}	if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) {
	$result .= '\vskip 10mm\fbox{\textit{'.$weight.' pt}}';

	}
} elsif ($target eq 'web') {	} elsif ($target eq 'web') {
$result.='<a name="'.&Apache::lonnet::escape($Apache::inputtags::part).'" />';	$result.='<a name="'.&escape($Apache::inputtags::part).'" ></a>';
}	}
}	}
}	}
Line 1323 sub start_part {	Line 1904 sub start_part {
#limiting ids to only letters numbers, and space	#limiting ids to only letters numbers, and space
$token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;	$token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
$result = &Apache::edit::rebuild_tag($token);	$result = &Apache::edit::rebuild_tag($token);
$result.=&Apache::edit::handle_insert();
}	}
}	}
return $result;	return $result;
Line 1338 sub end_part {	Line 1918 sub end_part {
my $result;	my $result;
if (!$Apache::lonxml::metamode) {	if (!$Apache::lonxml::metamode) {
$result = &Apache::lonxml::endredirection(); # started in &start_part	$result = &Apache::lonxml::endredirection(); # started in &start_part
	$Apache::lonxml::post_evaluate=0;
}	}
if ($target eq 'grade') {	if ($target eq 'grade') {
if (($status eq 'CAN_ANSWER' \|\| $Apache::lonhomework::scantronmode) &&	if (($status eq 'CAN_ANSWER' \|\| $Apache::lonhomework::scantronmode) &&
Line 1358 sub end_part {	Line 1939 sub end_part {
if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}	if ($$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];
}	}
pop @Apache::inputtags::status;	pop @Apache::inputtags::status;
$Apache::inputtags::part='';	$Apache::inputtags::part='';
Line 1366 sub end_part {	Line 1949 sub end_part {
}	}

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::lonhomework::scantronmode &&	if (!$Apache::lonhomework::scantronmode &&
$Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&	$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 1383 sub end_preduedate {	Line 1967 sub end_preduedate {
return '';	return '';
}	}

	# In all the modes where <postanswerdate> text is
	# displayable, all we do is eat up the text between the start/stop
	# tags if the conditions are not right to display it.
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') {	my $pav = &Apache::lonnet::allowed('pav', $env{'request.course.id'}) \|\|
	&Apache::lonnet::allowed('pav',
	$env{'request.course.id'}.'/'.$env{'request.course.sec'});
	if ($target eq 'web' \|\| $target eq 'grade' \|\| $target eq 'webgrade' \|\|
	$target eq 'tex' ) {
if ($Apache::lonhomework::scantronmode \|\|	if ($Apache::lonhomework::scantronmode \|\|
$Apache::inputtags::status['-1'] ne 'SHOW_ANSWER') {	$Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' \|\|
&Apache::lonxml::get_all_text("/postanswerdate",$parser);	(($target eq 'tex') && !$pav)) {
	&Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
}	}
} elsif ($target eq 'tex') {
&Apache::lonxml::get_all_text("/postanswerdate",$parser);
}	}
return '';	return '';
}	}
Line 1401 sub end_postanswerdate {	Line 1991 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 1420 sub end_notsolved {	Line 2010 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 1437 sub end_solved {	Line 2027 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,$safeeval);
Line 1449 sub start_problemtype {	Line 2039 sub start_problemtype {
if ($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 1463 sub start_problemtype {	Line 2053 sub start_problemtype {
$result .=&Apache::edit::checked_arg('When used as type(s):','for',	$result .=&Apache::edit::checked_arg('When used as type(s):','for',
[ ['exam','Exam/Quiz Problem'],	[ ['exam','Exam/Quiz Problem'],
['survey','Survey'],	['survey','Survey'],
['problem','Homework Problem'] ]	['surveycred','Survey (with credit)'],
	['anonsurvey','Anonymous Survey'],
	['anonsurveycred','Anonymous Survey (with credit)'],
	['problem','Homework Problem'],
	['practice','Practice Problem'] ]
,$token);	,$token);
$result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();	$result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
} elsif ($target eq 'modified') {	} elsif ($target eq 'modified') {
Line 1482 sub start_startouttext {	Line 2076 sub start_startouttext {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;	my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
my @result=(''.'');	my @result=(''.'');
if ($target eq 'edit' \|\| $target eq 'modified' ) { @result=('','no'); }	if ($target eq 'edit' \|\| $target eq 'modified' ) { @result=('','no'); }

	my $nesting =
	&Apache::lonxml::set_state('outtext',
	&Apache::lonxml::get_state('outtext')+1);
	if ($nesting > 1 && $env{'request.state'} eq 'construct') {
	&Apache::lonxml::error("Nesting of <startouttext /> not allowed, on line ".$token->[5]);
	}
return (@result);	return (@result);
}	}

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);	my $areaid = 'homework_edit_'.$Apache::lonxml::curdepth;
$result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>	$text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
<td>".&mt('Delete:').	$result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>"
&Apache::edit::deletelist($target,$token)	.'<td><span class="LC_nobreak">'.&mt('Delete?').' '
."</td>	.&Apache::edit::deletelist($target,$token)
<td>".	.'</span></td>'
&Apache::edit::insertlist($target,$token).	.'<td align="left"><span id="math_'.$areaid.'" />'
	.&Apache::lonhtmlcommon::dragmath_button($areaid,1)
	.'<span></td>'
	.'<td>'
	.&Apache::edit::insertlist($target,$token)
	.'</td>'
	.'<td align="right" valign="top">' .
	&Apache::loncommon::helpLatexCheatsheet().
&Apache::edit::end_row().	&Apache::edit::end_row().
&Apache::edit::start_spanning_row()."\n"	&Apache::edit::start_spanning_row()."\n".
. &Apache::loncommon::helpLatexCheatsheet () .
&Apache::edit::editfield($token->[1],$text,"",80,8,1);	&Apache::edit::editfield($token->[1],$text,"",80,8,1);
}	}
if ($target eq 'modified') {	if ($target eq 'modified') {
Line 1518 sub start_endouttext {	Line 2124 sub start_endouttext {
if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }	if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
if ($target eq "modified") {	if ($target eq "modified") {
$result='<endouttext />'.	$result='<endouttext />'.
&Apache::edit::handle_insertafter('startouttext'); }	&Apache::edit::handle_insertafter('startouttext');
	}

	my $nesting =
	&Apache::lonxml::set_state('outtext',
	&Apache::lonxml::get_state('outtext')-1);
	if ($nesting < 0 && $env{'request.state'} eq 'construct') {
	&Apache::lonxml::error(" Extraneous <endouttext /> not allowed on line ".$token->[5]);
	&Apache::lonxml::set_state('outtext', 0);
	}
return $result;	return $result;
}	}

Line 1530 sub end_endouttext {	Line 2145 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 1548 sub start_simpleeditbutton {	Line 2163 sub start_simpleeditbutton {
my $result='';	my $result='';
if (($env{'form.simple_edit_button'} ne 'off') &&	if (($env{'form.simple_edit_button'} ne 'off') &&
($target eq 'web') &&	($target eq 'web') &&
(&Apache::lonnet::allowed('srm',$env{'request.course.id'}))) {	(&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
my $url=$env{'request.noversionuri'};	my $url=$env{'request.noversionuri'};
$url=~s/\?.*$//;	$url=~s/\?.*$//;
my ($symb) = &Apache::lonxml::whichuser();	my ($symb) = &Apache::lonnet::whichuser();
$result='<table width="100%" bgcolor="#FFFFAA" border="2"><tr><td>'.	# Warning makes more sense and is more important on edit screen
'<a href="'.$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.').	# $result='<p class="LC_warning">'
&Apache::loncommon::help_open_topic('Caching').'</td></tr></table><br />';	# .&mt('Note: it can take up to 10 minutes for changes to take effect for all users.')
	# .&Apache::loncommon::help_open_topic('Caching')
	# .'</p>';
	$result.=&Apache::lonhtmlcommon::start_funclist()
	.&Apache::lonhtmlcommon::add_item_funclist(
	'<a href="'.$url.'/smpedit?symb='.&escape($symb).'">'
	.&mt('Edit').'</a>')
	.&Apache::lonhtmlcommon::end_funclist();

}	}
return $result;	return $result;
}	}
Line 1563 sub end_simpleeditbutton {	Line 2186 sub end_simpleeditbutton {
return '';	return '';
}	}

	sub practice_problem_header {
	return '<span class="LC_info"><h3>'.&mt('Practice Problem').'</h3></span>'.
	'<span class="LC_info">'.&mt('Submissions are not permanently recorded').
	'</span>';
	}

1;	1;
__END__	__END__

	=pod

	=back

	=cut

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

Removed from v.1.321
changed lines
	Added in v.1.478