loncom/homework/structuretags.pm - diff

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Diff for /loncom/homework/structuretags.pm between versions 1.325 and 1.405

version 1.325, 2005/11/21 22:16:38	version 1.405, 2007/10/17 00:22:51
Line 36 use Apache::File();	Line 36 use Apache::File();
use Apache::lonmenu;	use Apache::lonmenu;
use Apache::lonlocal;	use Apache::lonlocal;
use Apache::lonxml;	use Apache::lonxml;
	use Apache::lonenc();
use Time::HiRes qw( gettimeofday tv_interval );	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','startouttext','endouttext','simpleeditbutton','definetag'));
}	}

sub start_web {	sub start_web {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;	my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
my $bodytext=&Apache::lonxml::get_all_text("/web",$parser);	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 69 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') {
	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 92 sub end_tex {
return '';	return '';
}	}

sub body_tag_start {	sub homework_js {
my ($target,$background,$bgcolor)=@_;	return &Apache::loncommon::resize_textarea_js().
my $body_tag_start='<body onload="'.&Apache::lonmenu::loadevents().'" '.	<<'JS';
'onunload="'.&Apache::lonmenu::unloadevents().'" ';	<script type="text/javascript">
if ($env{'browser.imagesuppress'} eq 'on') { $background=''; }	function setSubmittedPart (part) {
if ($background) {	this.document.lonhomework.submitted.value="part_"+part;
&Apache::lonxml::extlink($background);	}
$body_tag_start.='background="'.$background.'" ';
} else {	function image_response_click (which, e) {
if (($bgcolor) && ($env{'browser.blackwhite'} ne 'on')) {	init_geometry();
$body_tag_start.='bgcolor="'.$bgcolor.'" ';	if (!e) { e = window.event; } //IE
} else {	var input_element = document.lonhomework.elements[which];
$body_tag_start.='bgcolor="#ffffff"';	var token_element = document.lonhomework.elements[which+'_token'];
}	var token = token_element.value;
}	var img_element = document.getElementById(which+'_imageresponse');
if ($env{'browser.fontenhance'} eq 'on') {	var x= e.clientX-getX(img_element)+Geometry.getHorizontalScroll();
$body_tag_start.=' style="font-size: x-large;" ';	var y= e.clientY-getY(img_element)+Geometry.getVerticalScroll();
}	var click = x+':'+y;
$body_tag_start.='>'.&Apache::lonmenu::menubuttons(undef,$target,1);	input_element.value = click;
	img_element.src = '/adm/randomlabel.png?token='+token+'&clickdata='+click;
&Apache::lontexconvert::jsMath_reset();	}
if ($env{'environment.texengine'} eq 'jsMath') {	</script>
$body_tag_start.=&Apache::lontexconvert::jsMath_header();	JS
}
return $body_tag_start;
}	}

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 127 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().	$extra_head .= &homework_js();
&Apache::lonhtmlcommon::spellheader().
&Apache::lonxml::fontsettings();	my %body_args;
}	if (defined($found{'html'})) {
my $body_tag_start;	$body_args{'skip_phases'}{'head'}=1;
if (!defined($found{'body'}) && $env{'request.state'} eq 'construct') {	} else {
if ($env{'environment.remote'} eq 'off') {
if ($target eq 'web' \|\| $target eq 'edit') {	$extra_head .= &Apache::lonhtmlcommon::spellheader();
$body_tag_start=&Apache::loncommon::bodytag();
$body_tag_start.=&Apache::lonxml::message_location();	$extra_head .= &Apache::londefdef::generate_css_links();
}
} else {	if ($env{'request.state'} eq 'construct') {
if ($target eq 'web' \|\| $target eq 'edit') {	$extra_head.=&Apache::edit::js_change_detection().
$body_tag_start=&Apache::loncommon::bodytag(undef,undef,undef,1);	"<script type=\"text/javascript\">\n".
$body_tag_start.=&Apache::lonxml::message_location();	"if (typeof swmenu != 'undefined') {swmenu.currentURL=null;}\n".
	&Apache::loncommon::browser_and_searcher_javascript().
	"\n</script>\n";
	}
	}

	if (defined($found{'body'})) {
	$body_args{'skip_phases'}{'body'}=1;
	} elsif (!defined($found{'body'})
	&& $env{'request.state'} eq 'construct') {
	if ($target eq 'web' \|\| $target eq 'edit') {
	if ($env{'environment.remote'} ne 'off') {
	$body_args{'only_body'} = 1;
}	}
}	}
} elsif (!defined($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{'environment.remote'} eq 'off'
$help=&mt("Browsing resource, all submissions are temporary.")."<br />";	&& $env{'request.state'} eq 'construct') {
$body_tag_start.=$help;	$body_args{'only_body'} = 1;
}	}
	}
	$body_args{'no_auto_mt_title'} = 1;
	my $page_start = &Apache::loncommon::start_page($name,$extra_head,
	\%body_args);

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

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

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

my $form_tag_start;	my $form_tag_start;
if (!defined($found{'form'})) {	if (!defined($found{'form'})) {
$form_tag_start='<form name="lonhomework" 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 $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
if ($env{'request.enc'}) { $uri=&Apache::lonenc::encrypted($uri); }	$form_tag_start.=$uri.'" ';
$form_tag_start.=$uri.'">';	if ($target eq 'edit') {
	$form_tag_start.=&Apache::edit::form_change_detection();
	}
	$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 269 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 225 sub problem_edit_header {	Line 304 sub problem_edit_header {
&Apache::structuretags::remember_problem_state().'	&Apache::structuretags::remember_problem_state().'
<input type="hidden" name="problemmode" value="'.&mt('Edit').'" />	<input type="hidden" name="problemmode" value="'.&mt('Edit').'" />
<input type="submit" name="problemmode" accesskey="d" value="'.&mt('Discard Edits and View').'" />	<input type="submit" name="problemmode" accesskey="d" value="'.&mt('Discard Edits and View').'" />
<input type="submit" name="problemmode" accesskey="x" value="'.&mt('EditXML').'" />	<input '.&Apache::edit::submit_ask_anyway().' type="submit" name="problemmode" accesskey="x" value="'.&mt('EditXML').'" />
<input type="submit" name="Undo" accesskey="u" value="'.&mt('undo').'" /> <hr />	<input type="submit" name="Undo" accesskey="u" value="'.&mt('undo').'" /> <hr />
<input type="submit" name="submit" accesskey="s" value="'.&mt('Submit Changes and Edit').'" />	<input type="submit" name="submit" accesskey="s" value="'.&mt('Submit Changes and Edit').'" />
<input type="submit" name="submit" accesskey="v" value="'.&mt('Submit Changes and View').'" /><table><tr><td>'.	<input type="submit" name="submit" accesskey="v" value="'.&mt('Submit Changes and View').'" /><table><tr><td>'.
&Apache::loncommon::help_open_menu('','Problem Editing Help','Problem_Editor_XML_Index','',5,'Authoring',undef,undef,undef,'Problem Editing Help')	&Apache::loncommon::help_open_menu('Problem Editing Help','Problem_Editor_XML_Index',5,'Authoring',undef,undef,undef,'Problem Editing Help')
.'</td></tr></table>'.	.'</td></tr></table>'.
'<table border="0" width="100%"><tr><td bgcolor="#DDDDDD">';	'<table border="0" width="100%"><tr><td bgcolor="#DDDDDD">';
}	}
Line 237 sub problem_edit_header {	Line 316 sub problem_edit_header {
sub problem_edit_footer {	sub problem_edit_footer {
return '</td></tr></table><br /><input type="submit" name="submit" value="'.&mt('Submit Changes and Edit').'" />	return '</td></tr></table><br /><input type="submit" name="submit" value="'.&mt('Submit Changes and Edit').'" />
<input type="submit" name="submit" value="'.&mt('Submit Changes and View').'" />'.	<input type="submit" name="submit" value="'.&mt('Submit Changes and View').'" />'.
&Apache::lonhtmlcommon::htmlareaselectactive(@Apache::lonxml::htmlareafields).	&Apache::lonhtmlcommon::htmlareaselectactive(&Apache::lonhtmlcommon::get_htmlareafields()).
"\n</form>\n".&Apache::loncommon::endbodytag()."\n</html>";	"\n</form>\n".&Apache::loncommon::end_page();
}	}

sub option {	sub option {
Line 254 sub option {	Line 333 sub option {
sub problem_web_to_edit_header {	sub problem_web_to_edit_header {
my ($rndseed)=@_;	my ($rndseed)=@_;
my $result.='<input type="hidden" name="problemmode" value="'.&mt('View').'" />';	my $result.='<input type="hidden" name="problemmode" value="'.&mt('View').'" />';
if (!$Apache::lonhomework::parsing_a_task) {	$result .= '<input type="submit" name="problemmode" accesskey="e" value="'.&mt('Edit').'" />';
$result .= '<input type="submit" name="problemmode" accesskey="e" value="'.&mt('Edit').'" />';
}
$result .= '<input type="submit" name="problemmode" accesskey="x" value="'.&mt('EditXML').'" />	$result .= '<input type="submit" name="problemmode" accesskey="x" value="'.&mt('EditXML').'" />
<input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />	<input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
<input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />	<input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
Line 264 sub problem_web_to_edit_header {	Line 341 sub problem_web_to_edit_header {
<input type="text" name="rndseed" size="10" value="'.	<input type="text" name="rndseed" size="10" value="'.
$rndseed.'"	$rndseed.'"
onchange="javascript:document.lonhomework.changerandseed.click()" /></nobr>	onchange="javascript:document.lonhomework.changerandseed.click()" /></nobr>
<label><input type="checkbox" name="showallfoils" ';	<span class="LC_nobreak"><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');

if (defined($env{'form.showallfoils'})) { $result.='checked="on"'; }	if (defined($env{'form.showallfoils'})) { $result.='checked="on"'; }
$result.= ' />'.$show_all_foils_text.	$result.= ' />'.$show_all_foils_text.'</label></span>'.
&Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area','Testing Problems').	&Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area','Testing Problems').
'</label><hr />';	'<hr />';
	$result.=&mt('Apply style file: ').'
	<input type="text" name="style_file" value="'.&HTML::Entities::encode($env{'construct.style'},'"<>&').'" />
	<a href="javascript:openbrowser(\'lonhomework\',\'style_file\',\'sty\')">'.&mt('Select').'</a>
	<input type="submit" name="clear_style_file" value="'.&mt('Clear').'" />
	<br />';

if (!$Apache::lonhomework::parsing_a_task) {	if (!$Apache::lonhomework::parsing_a_task) {
$result.="	$result.="
<nobr>	<nobr>
Problem Status:	".&mt("Problem Status:")."
<select name='problemstate'>	<select name='problemstate'>
<option value=''></option>	<option value=''></option>
".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>	".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
Line 288 Problem Status:	Line 371 Problem Status:
</select>	</select>
</nobr>	</nobr>
<nobr>	<nobr>
Problem Type:	".&mt("Problem Type:")."
<select name='problemtype'>	<select name='problemtype'>
<option value=''></option>	<option value=''></option>
".&option('exam' ,'problemtype').&mt("Exam Problem")."</option>	".&option('exam' ,'problemtype').&mt("Exam Problem")."</option>
Line 297 Problem Type:	Line 380 Problem Type:
</select>	</select>
</nobr>	</nobr>
<nobr>	<nobr>
Feedback Mode:	".&mt("Feedback Mode:")."
<select name='problemstatus'>	<select name='problemstatus'>
<option value=''></option>	<option value=''></option>
".&option('yes','problemstatus').&mt("Show Feedback")."</option>	".&option('yes','problemstatus').&mt("Show Feedback")."</option>
".&option('no', 'problemstatus').&mt("Don't Show Feedback")."</option>	".&option('no', 'problemstatus').&mt("Don't Show Incorect/Correct Feedback")."</option>
	".&option('no_feedback_ever', 'problemstatus').&mt("Don't Show Any Feedback")."</option>
</select>	</select>
</nobr>	</nobr>
<input type='submit' name='changeproblemmode' value='".&mt("Change")."' />	<input type='submit' name='changeproblemmode' value='".&mt("Change")."' />
Line 315 Feedback Mode:	Line 399 Feedback Mode:
'.'.&Apache::loncommon::help_open_topic("Analyze_Problem",	'.'.&Apache::loncommon::help_open_topic("Analyze_Problem",
'',undef,undef,300).	'',undef,undef,300).
'<hr />';	'<hr />';
	} elsif ($Apache::lonhomework::parsing_a_task) {
	$result.="
	<nobr>
	".&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>
	</nobr>
	<input type='submit' name='changeproblemmode' value='".&mt("Change")."' />
	<hr />";
}	}
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=(); }
Line 344 sub initialize_storage {	Line 463 sub initialize_storage {
# Will increment totals for attempts, students, and corrects	# Will increment totals for attempts, students, and corrects
# if running user has student role.	# if running user has student role.
sub finalize_storage {	sub finalize_storage {
	my ($given_symb) = @_;
my $result;	my $result;
if (%Apache::lonhomework::results) {	if (%Apache::lonhomework::results) {
my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));	my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
delete(@Apache::lonhomework::results{@remove});	delete(@Apache::lonhomework::results{@remove});
my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();	my ($symb,$courseid,$domain,$name) =
if ($env{'request.state'} eq 'construct' \|\| $symb eq '') {	&Apache::lonnet::whichuser($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,
Line 367 sub finalize_storage {	Line 491 sub finalize_storage {
}	}
return $result;	return $result;
}	}
use Data::Dumper;

# -------------------------------------------------------------store_aggregates	# -------------------------------------------------------------store_aggregates
# Sends hash of values to be incremented in nohist_resourcetracker.db	# Sends hash of values to be incremented in nohist_resourcetracker.db
Line 416 sub checkout_msg {	Line 539 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">	<font color="red">
<p>$lt{'warning'}</p>	<p>$lt{'warning'}</p>
</font>	</font>
<form name="checkout" method="POST" action="$env{'request.uri'}">	<form name="checkout" method="POST" action="$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 434 sub firstaccess_msg {	Line 558 sub firstaccess_msg {
my ($map)=&Apache::lonnet::decode_symb($symb);	my ($map)=&Apache::lonnet::decode_symb($symb);
my $foldertitle=&Apache::lonnet::gettitle($map);	my $foldertitle=&Apache::lonnet::gettitle($map);
&Apache::lonxml::debug("map is $map title is $foldertitle");	&Apache::lonxml::debug("map is $map title is $foldertitle");
	my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
return (<<ENDCHECKOUT);	return (<<ENDCHECKOUT);
<h2>The resources in "$foldertitle" are open for a limited time. Once you click the 'Show Resource' button below you have $time to complete all resources "$foldertitle".</h2>	<h2>The resources in "$foldertitle" are open for a limited time. Once you click the 'Show Resource' button below you have $time to complete all resources "$foldertitle".</h2>
<form name="markaccess" method="POST" action="$env{'request.uri'}">	<form name="markaccess" method="POST" action="$uri">
<input type="hidden" name="markaccess" value="yes" />	<input type="hidden" name="markaccess" value="yes" />
<input type="button" name="accessbutton" value="Show Resource" onClick="javascript:if (confirm('Start Timer?')) { document.markaccess.submit(); }" />	<input type="button" name="accessbutton" value="Show Resource" onClick="javascript:if (confirm('Start Timer?')) { document.markaccess.submit(); }" />
</form>	</form>
Line 452 sub init_problem_globals {	Line 577 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::inputtags::responselist = ();	@Apache::inputtags::responselist = ();
Line 477 sub init_problem_globals {	Line 602 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 489 sub reset_problem_globals {	Line 615 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);
	&Apache::lonhomework::reset_show_problem_status();
}	}

sub set_problem_state {	sub set_problem_state {
Line 514 sub get_problem_status {	Line 645 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 527 sub start_problem {	Line 658 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 538 sub start_problem {	Line 669 sub start_problem {
$Apache::lonhomework::scantronmode=1;	$Apache::lonhomework::scantronmode=1;
}	}

&initialize_storage();
if ($target ne 'analyze') {	if ($target ne 'analyze') {
if ($target eq 'web') {
&Apache::lonhomework::showhash(%Apache::lonhomework::history);
}
if ($env{'request.state'} eq 'construct') { &set_problem_state('0'); }
$Apache::lonhomework::type=&Apache::lonnet::EXT('resource.0.type');	$Apache::lonhomework::type=&Apache::lonnet::EXT('resource.0.type');
if (($env{'request.state'} eq 'construct') &&	if (($env{'request.state'} eq 'construct') &&
defined($env{'form.problemtype'})) {	defined($env{'form.problemtype'})) {
$Apache::lonhomework::type=$env{'form.problemtype'};	$Apache::lonhomework::type=$env{'form.problemtype'};
}	}
&Apache::lonxml::debug("Found this to be of type :$Apache::ltonhomework::type:");	&Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
}	}
if ($Apache::lonhomework::type eq '' ) {	if ($Apache::lonhomework::type eq '' ) {
my $uri=$env{'request.uri'};	my $uri=$env{'request.uri'};
Line 563 sub start_problem {	Line 689 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 570 sub start_problem {	Line 707 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); }
Line 587 sub start_problem {	Line 730 sub start_problem {
$Apache::lonhomework::history{"resource.0.outtoken"}=	$Apache::lonhomework::history{"resource.0.outtoken"}=
$token;	$token;
}	}
$body_tag_start.=&Apache::lonxml::printtokenheader($target,$token);	$result.=&Apache::lonxml::printtokenheader($target,$token);
}	}
if ($env{'form.markaccess'}) {	if ($env{'form.markaccess'}) {
&Apache::lonnet::set_first_access('map');	&Apache::lonnet::set_first_access('map');
}	}
#handle rand seed in construction space	#handle rand seed in construction space
my $rndseed=&setup_rndseed($safeeval);	my $rndseed=&setup_rndseed($safeeval);
my ($symb)=&Apache::lonxml::whichuser();	my ($symb)=&Apache::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'}) {	}
	if ($env{'request.role.adv'}) {
$form_tag_start.=	$form_tag_start.=
' <label><input type="checkbox" name="showallfoils" ';	' <label><input type="checkbox" name="showallfoils" ';
if (defined($env{'form.showallfoils'})) {	if (defined($env{'form.showallfoils'})) {
Line 630 sub start_problem {	Line 777 sub start_problem {
( $status eq 'UNAVAILABLE') \|\|	( $status eq 'UNAVAILABLE') \|\|
( $status eq 'NOT_IN_A_SLOT') \|\|	( $status eq 'NOT_IN_A_SLOT') \|\|
( $status eq 'INVALID_ACCESS')) {	( $status eq 'INVALID_ACCESS')) {
my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser);	my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
	$style);
if ( $target eq "web" ) {	if ( $target eq "web" ) {
$result.= $head_tag_start.'</head>';	my $msg;
my $msg=$body_tag_start;
if ($status eq 'UNAVAILABLE') {	if ($status eq 'UNAVAILABLE') {
$msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';	$msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
} elsif ($status ne 'NOT_YET_VIEWED') {	} elsif ($status ne 'NOT_YET_VIEWED') {
$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') {	} elsif ($status eq 'NOT_IN_A_SLOT') {
Line 650 sub start_problem {	Line 797 sub start_problem {
}	}
$result.=$msg.'<br />';	$result.=$msg.'<br />';
} elsif ($target eq 'tex') {	} elsif ($target eq 'tex') {
$result.='\begin{document}\noindent \vskip 1 mm \begin{minipage}{\textwidth}\vskip 0 mm';	my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
	: '\begin{minipage}{\textwidth}';
	$result.='\begin{document}\noindent \vskip 1 mm '.
	$startminipage.'\vskip 0 mm';
if ($status eq 'UNAVAILABLE') {	if ($status eq 'UNAVAILABLE') {
$result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';	$result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
} else {	} else {
Line 658 sub start_problem {	Line 808 sub start_problem {
}	}
}	}
} elsif ($status eq 'NEEDS_CHECKIN') {	} elsif ($status eq 'NEEDS_CHECKIN') {
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>';	$result .=
$result .= $body_tag_start;	&Apache::bridgetask::proctor_validation_screen($slot);
$result .= &Apache::bridgetask::proctor_validation_screen();
} elsif ($target eq 'grade') {	} elsif ($target eq 'grade') {
&Apache::bridgetask::proctor_check_auth($slot_name,$slot,	&Apache::bridgetask::proctor_check_auth($slot_name,$slot,
'problem');	'problem');
}	}
} elsif ($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") {
Line 688 sub start_problem {	Line 843 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 710 sub end_problem {	Line 863 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 789 sub end_problem {	Line 942 sub end_problem {
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.'} \\\\\\\\';	$frontmatter .= '\vskip 1mm\textit{Due date: '.$duedate.'} \\\\\\\\'.$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 830 sub end_problem {	Line 983 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);	$result.= &Apache::lonhtmlcommon::htmlareaselectactive(&Apache::lonhtmlcommon::get_htmlareafields());
}	}
if ($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 $env{'form.problem_split'}=~/yes/) {
Line 841 sub end_problem {	Line 994 sub end_problem {
}	}
if ($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 .= $endminipage;
}	}
}	}
}	}
Line 858 sub end_problem {	Line 1010 sub end_problem {
}	}
if ($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 874 sub end_problem {	Line 1026 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 889 sub end_problem {	Line 1040 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);
}	}
Line 923 sub end_library {	Line 1074 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 961 sub start_block {	Line 1117 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 1005 sub start_languageblock {	Line 1161 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::loncommon::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 1053 sub end_languageblock {	Line 1228 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);
	$available_texts{$which} = $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\|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",
Line 1084 sub end_instructorcomment {	Line 1309 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, $code);
Line 1096 sub start_while {	Line 1321 sub start_while {
&Apache::lonxml::default_homework_load($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 1120 sub end_while {	Line 1345 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 $line = pop(@Apache::structuretags::whileline);
Line 1131 sub end_while {	Line 1356 sub end_while {
while ($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 ($error) {
Line 1152 sub end_while {	Line 1384 sub end_while {
# ...	# ...
# </randomlist>	# </randomlist>
sub start_randomlist {	sub start_randomlist {
my ($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 1245 sub ordered_show_check {	Line 1477 sub ordered_show_check {
}	}

sub start_part {	sub start_part {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;	my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
if (!$Apache::lonxml::metamode) {	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 1274 sub start_part {	Line 1507 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 1290 sub start_part {	Line 1523 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 ( $target eq 'tex' ) {
Line 1304 sub start_part {	Line 1538 sub start_part {
if ($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';	$result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
}	}
Line 1328 sub start_part {	Line 1562 sub start_part {
}	}
if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}	if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
} elsif ($target eq 'web') {	} elsif ($target eq 'web') {
$result.='<a name="'.&Apache::lonnet::escape($Apache::inputtags::part).'" />';	$result.='<a name="'.&escape($Apache::inputtags::part).'" />';
}	}
}	}
}	}
Line 1346 sub start_part {	Line 1580 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 1361 sub end_part {	Line 1594 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 1383 sub end_part {	Line 1617 sub end_part {
$result.=&Apache::edit::end_table();	$result.=&Apache::edit::end_table();
} elsif ($target eq 'modified') {	} elsif ($target eq 'modified') {
$result .= $token->[2];	$result .= $token->[2];
$result.=&Apache::edit::handle_insertafter($token->[1]);
}	}
pop @Apache::inputtags::status;	pop @Apache::inputtags::status;
$Apache::inputtags::part='';	$Apache::inputtags::part='';
Line 1392 sub end_part {	Line 1625 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 1409 sub end_preduedate {	Line 1643 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 1427 sub end_postanswerdate {	Line 1667 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 1446 sub end_notsolved {	Line 1686 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 1463 sub end_solved {	Line 1703 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,$safeeval);
Line 1475 sub start_problemtype {	Line 1715 sub start_problemtype {
if ($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,$token);
Line 1508 sub start_startouttext {	Line 1748 sub start_startouttext {
my ($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);	$text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
$result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>	$result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>
<td>".&mt('Delete:').	<td>".&mt('Delete:').
&Apache::edit::deletelist($target,$token)	&Apache::edit::deletelist($target,$token)
."</td>	."</td>
<td>".	<td>".
&Apache::edit::insertlist($target,$token).	&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 1544 sub start_endouttext {	Line 1792 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 1556 sub end_endouttext {	Line 1813 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 1574 sub start_simpleeditbutton {	Line 1831 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>'.	$result='<table width="100%" bgcolor="#FFFFAA" border="2"><tr><td>'.
'<a href="'.$url.'/smpedit?symb='.&Apache::lonnet::escape($symb).'">'.&mt('Edit').'</a> - '.&mt('Note: it can take up to 10 minutes for changes to take effect for all users.').	'<a href="'.$url.'/smpedit?symb='.&escape($symb).'">'.&mt('Edit').'</a> - '.&mt('Note: it can take up to 10 minutes for changes to take effect for all users.').
&Apache::loncommon::help_open_topic('Caching').'</td></tr></table><br />';	&Apache::loncommon::help_open_topic('Caching').'</td></tr></table><br />';
}	}
return $result;	return $result;

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

Removed from v.1.325
changed lines
	Added in v.1.405