loncom/homework/structuretags.pm - diff

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Diff for /loncom/homework/structuretags.pm between versions 1.334 and 1.441

version 1.334, 2006/02/11 00:03:07	version 1.441, 2009/03/27 01:07:10
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','startouttext','endouttext','simpleeditbutton','definetag'));
}	}

sub start_web {	sub start_web {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;	my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
my $bodytext=&Apache::lonxml::get_all_text("/web",$parser,$style);	if ($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 57 sub end_web {	Line 95 sub end_web {
sub start_tex {	sub start_tex {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;	my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
my $result='';	my $result='';
my $bodytext=&Apache::lonxml::get_all_text("/tex",$parser,$style);	if ($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();
$body_tag_start.='>'.&Apache::lonmenu::menubuttons(undef,$target,1);	var click = x+':'+y;
	input_element.value = click;
&Apache::lontexconvert::jsMath_reset();	img_element.src = '/adm/randomlabel.png?token='+token+'&clickdata='+click;
if ($env{'environment.texengine'} eq 'jsMath') {	}
$body_tag_start.=&Apache::lontexconvert::jsMath_header();
}	</script>
return $body_tag_start;	JS
	}

	sub setmode_javascript {
	return <<"ENDSCRIPT";
	<script type="text/javascript">
	function setmode(form,probmode) {
	form.problemmode.value = probmode;
	form.submit();
	}
	</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 171 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().	$extra_head .= &homework_js();
&Apache::lonhtmlcommon::spellheader().
&Apache::lonxml::fontsettings();	if ($env{'environment.wysiwygeditor'} eq 'on') {
if ($target eq 'edit') {	$extra_head .= &Apache::lonhtmlcommon::dragmath_js("FCKEditMathPopup");
$head_tag_start.=&Apache::edit::js_change_detection();	} else {
	$extra_head .= &Apache::lonhtmlcommon::dragmath_js("EditMathPopup");
	}

	my %body_args;
	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 $body_tag_start;
if (!defined($found{'body'}) && $env{'request.state'} eq 'construct') {	if (defined($found{'body'})) {
if ($env{'environment.remote'} eq 'off') {	$body_args{'skip_phases'}{'body'}=1;
if ($target eq 'web' \|\| $target eq 'edit') {	} elsif (!defined($found{'body'})
$body_tag_start=&Apache::loncommon::bodytag();	&& $env{'request.state'} eq 'construct') {
$body_tag_start.=&Apache::lonxml::message_location();	if ($target eq 'web' \|\| $target eq 'edit') {
}	if ($env{'environment.remote'} ne 'off') {
} else {	$body_args{'only_body'} = 1;
if ($target eq 'web' \|\| $target eq 'edit') {
$body_tag_start=&Apache::loncommon::bodytag(undef,undef,undef,1);
$body_tag_start.=&Apache::lonxml::message_location();
}	}
}	}
} elsif (!defined($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'}) && $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 $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
if ($env{'request.enc'}) { $uri=&Apache::lonenc::encrypted($uri); }
$form_tag_start.=$uri.'" ';	$form_tag_start.=$uri.'" ';
if ($target eq 'edit') {	if ($target eq 'edit') {
$form_tag_start.=&Apache::edit::form_change_detection();	$form_tag_start.=&Apache::edit::form_change_detection();
}	}
$form_tag_start.='>';	$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"	if ($env{'request.state'} eq "construct"
\|\| $symb eq ''	\|\| $symb eq ''
\|\| $Apache::lonhomework::type eq 'practice'	\|\| $Apache::lonhomework::type eq 'practice'
Line 200 sub setup_rndseed {	Line 319 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));	$rndseed=int(rand(2100000000));
Line 229 sub remember_problem_state {	Line 349 sub remember_problem_state {
<input type="hidden" name="problemstatus" value="'.$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 '.&Apache::edit::submit_ask_anyway().' 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 class="LC_edit_problem_divide" />
&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="#DDDDDD">';
}	}

sub problem_edit_footer {	sub problem_edit_footer {
return '</td></tr></table><br /><input type="submit" name="submit" value="'.&mt('Submit Changes and Edit').'" />	return '</td></tr></table><br />
<input type="submit" name="submit" value="'.&mt('Submit Changes and View').'" />'.	<div class="LC_edit_problem_footer">
&Apache::lonhtmlcommon::htmlareaselectactive(@Apache::lonxml::htmlareafields).	<hr class="LC_edit_problem_divide" />'.
"\n</form>\n".&Apache::loncommon::endbodytag()."\n</html>";	&problem_edit_buttons().'
	<hr class="LC_edit_problem_divide" />
	</div>
	'.

	&Apache::lonhtmlcommon::htmlareaselectactive(&Apache::lonhtmlcommon::get_htmlareafields()).
	"\n</form>\n".&Apache::loncommon::end_page();
}	}

sub option {	sub option {
Line 262 sub option {	Line 403 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');

if (defined($env{'form.showallfoils'})) { $result.='checked="on"'; }	my $show_all= '<span class="LC_nobreak"><label><input type="checkbox" name="showallfoils"';
$result.= ' />'.$show_all_foils_text.	if (defined($env{'form.showallfoils'})) { $show_all.=' checked="checked"'; }
&Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area','Testing Problems').	$show_all.= ' />'.$show_all_foils_text.'</label></span>';
'</label><hr />';


	$result .= '<div class="LC_edit_problem_header_status_row">';
if (!$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 295 Problem Status:	Line 443 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('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 class="LC_edit_problem_divide" />
	<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>
	<div class="LC_edit_problem_header_edit_row">';
	$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>
	'.&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,$name) = &Apache::lonxml::whichuser();	undef(%Apache::lonhomework::history);
	my ($symb,$courseid,$domain,$name) =
	&Apache::lonnet::whichuser($given_symb);

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

if ($env{'request.state'} eq 'construct'	if ($env{'request.state'} eq 'construct'
\|\| $symb eq ''	\|\| $symb eq ''
\|\| $Apache::lonhomework::type eq 'practice') {	\|\| $Apache::lonhomework::type eq 'practice') {

my $namespace = $symb \|\| $env{'request.uri'};	my $namespace = $symb \|\| $env{'request.uri'};
if ($env{'form.resetdata'} eq &mt('Reset Submissions') \|\|	if ($env{'form.resetdata'} eq &mt('Reset Submissions') \|\|
$env{'form.resetdata'} eq &mt('New Problem Variation') \|\|	($env{'form.resetdata'} eq &mt('New Problem Variation')
	&& $env{'form.submitted'} eq 'yes') \|\|
$env{'form.newrandomization'} eq &mt('New Randomization')) {	$env{'form.newrandomization'} eq &mt('New Randomization')) {
&Apache::lonnet::tmpreset($namespace,'',$domain,$name);	&Apache::lonnet::tmpreset($namespace,'',$domain,$name);
&Apache::lonxml::debug("Attempt reset");	&Apache::lonxml::debug("Attempt reset");
Line 351 sub initialize_storage {	Line 568 sub initialize_storage {
%Apache::lonhomework::history=	%Apache::lonhomework::history=
&Apache::lonnet::restore($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 $result;
if (%Apache::lonhomework::results) {	if (%Apache::lonhomework::results) {
my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));	my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
delete(@Apache::lonhomework::results{@remove});	delete(@Apache::lonhomework::results{@remove});
my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();	my ($symb,$courseid,$domain,$name) =
	&Apache::lonnet::whichuser($given_symb);
if ($env{'request.state'} eq 'construct'	if ($env{'request.state'} eq 'construct'
\|\| $symb eq ''	\|\| $symb eq ''
\|\| $Apache::lonhomework::type eq 'practice') {	\|\| $Apache::lonhomework::type eq 'practice') {
Line 389 sub finalize_storage {	Line 616 sub finalize_storage {
}	}
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;
Line 438 sub checkout_msg {	Line 670 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 453 ENDCHECKOUT	Line 686 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 474 sub init_problem_globals {	Line 728 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 499 sub init_problem_globals {	Line 753 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 511 sub reset_problem_globals {	Line 766 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 560 sub start_problem {	Line 820 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 :$Apache::lonhomework::type:");	&Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
Line 585 sub start_problem {	Line 841 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 592 sub start_problem {	Line 859 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 609 sub start_problem {	Line 882 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 ($env{'form.markaccess'}) {
&Apache::lonnet::set_first_access('map');	my @interval=&Apache::lonnet::EXT("resource.0.interval");
	&Apache::lonnet::set_first_access($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 ($env{'request.state'} ne "construct" &&	if ($env{'request.state'} ne "construct" &&
($symb eq '' \|\| $Apache::lonhomework::type eq 'practice')) {	($symb eq '' \|\| $Apache::lonhomework::type eq 'practice')) {
$form_tag_start.='<input type="hidden" name="rndseed" value="'.	$form_tag_start.='<input type="hidden" name="rndseed" value="'.
Line 630 sub start_problem {	Line 904 sub start_problem {
}	}
if ($env{'request.role.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'})) {
$form_tag_start.='checked="on"';	$form_tag_start.=' checked="checked"';
}	}
$form_tag_start.= ' />'.&mt(' Show All Foils').	$form_tag_start.= ' />'.&mt(' Show All Foils').
'</label>';	'</label>';
}	}
	if ($Apache::lonhomework::type eq 'practice') {
	$form_tag_start.=&practice_problem_header();
	}
$form_tag_start.='<hr />';	$form_tag_start.='<hr />';
}	}

Line 659 sub start_problem {	Line 936 sub start_problem {
my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,	my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
$style);	$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') {	} elsif ($status eq 'NOT_IN_A_SLOT') {
$msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work.");	$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') {
Line 691 sub start_problem {	Line 969 sub start_problem {
my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,	my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
$style);	$style);
if ($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") {
$result.= &problem_web_to_edit_header($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 719 sub start_problem {	Line 1006 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 745 sub end_problem {	Line 1030 sub end_problem {
}	}

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 821 sub end_problem {	Line 1105 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 862 sub end_problem {	Line 1146 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 $env{'form.problem_split'}=~/yes/) {
Line 873 sub end_problem {	Line 1157 sub end_problem {
}	}
if ($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 .= $endminipage;
}	}
}	}
}	}
Line 890 sub end_problem {	Line 1173 sub end_problem {
}	}
if ($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 906 sub end_problem {	Line 1189 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 921 sub end_problem {	Line 1203 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 955 sub end_library {	Line 1242 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;
}	}

Line 971 sub start_definetag {	Line 1260 sub start_definetag {

my $name = $token->[2]->{'name'};	my $name = $token->[2]->{'name'};
my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);	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 993 sub start_block {	Line 1285 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 1037 sub start_languageblock {	Line 1329 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 1085 sub end_languageblock {	Line 1396 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\|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 $skip=&Apache::lonxml::get_all_text("/instructorcomment",
Line 1119 sub start_while {	Line 1490 sub start_while {
my ($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') {
my $code = $token->[2]->{'condition'};	my $code = $token->[2]->{'condition'};

push( @Apache::structuretags::whileconds, $code);	push( @Apache::structuretags::whileconds, $code);
Line 1152 sub end_while {	Line 1523 sub end_while {
my ($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 $line = pop(@Apache::structuretags::whileline);
Line 1163 sub end_while {	Line 1534 sub end_while {
while ($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,$token,'');
Line 1186 sub end_while {	Line 1564 sub end_while {
sub start_randomlist {	sub start_randomlist {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;	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 1223 sub start_randomlist {	Line 1601 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 1283 sub start_part {	Line 1675 sub start_part {
# 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 1337 sub start_part {	Line 1730 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';	$result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
}	}
Line 1361 sub start_part {	Line 1754 sub start_part {
}	}
if (($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 1379 sub start_part {	Line 1772 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 1417 sub end_part {	Line 1809 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 1427 sub end_part {	Line 1818 sub end_part {

sub start_preduedate {	sub start_preduedate {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;	my ($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' &&
Line 1443 sub end_preduedate {	Line 1835 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,$style)=@_;	my ($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') {	$Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' \|\|
	(($target eq 'tex') && !$pav)) {
&Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);	&Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
}	}
} elsif ($target eq 'tex') {
&Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
}	}
return '';	return '';
}	}
Line 1463 sub end_postanswerdate {	Line 1861 sub end_postanswerdate {
sub start_notsolved {	sub start_notsolved {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;	my ($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 ($gradestatus =~ /^correct/ &&
Line 1499 sub end_solved {	Line 1897 sub end_solved {
sub start_problemtype {	sub start_problemtype {
my ($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') {
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 1523 sub start_problemtype {	Line 1921 sub start_problemtype {
$result .=&Apache::edit::checked_arg('When used as type(s):','for',	$result .=&Apache::edit::checked_arg('When used as type(s):','for',
[ ['exam','Exam/Quiz Problem'],	[ ['exam','Exam/Quiz Problem'],
['survey','Survey'],	['survey','Survey'],
['problem','Homework Problem'] ]	['problem','Homework Problem'],
	['practice','Practice Problem'] ]
,$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 ($target eq 'modified') {
Line 1542 sub start_startouttext {	Line 1941 sub start_startouttext {
my ($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);
}	}

Line 1549 sub end_startouttext {	Line 1955 sub end_startouttext {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;	my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
my $result='';	my $result='';
my $text='';	my $text='';

if ($target eq 'edit') {	if ($target eq 'edit') {
	my $areaid = 'homework_edit_'.$Apache::lonxml::curdepth;
$text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);	$text=&Apache::lonxml::get_all_text("endouttext",$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><span class="LC_nobreak">'.&mt('Delete?').' '
&Apache::edit::deletelist($target,$token)	.&Apache::edit::deletelist($target,$token)
."</td>	.'</span></td>';
<td>".	unless ($env{'environment.wysiwygeditor'} eq 'on') {
&Apache::edit::insertlist($target,$token).	$result .= '<td align="left">'
	.&Apache::lonhtmlcommon::dragmath_button($areaid,1)
	.'</td>'
	.'<td>'
	.&Apache::edit::insertlist($target,$token)
	.'</td>';
	}
	$result.='<td align="right" valign="top">' .
	&Apache::loncommon::helpLatexCheatsheet().
&Apache::edit::end_row().	&Apache::edit::end_row().
&Apache::edit::start_spanning_row()."\n"	&Apache::edit::start_spanning_row()."\n".
. &Apache::loncommon::helpLatexCheatsheet () .
&Apache::edit::editfield($token->[1],$text,"",80,8,1);	&Apache::edit::editfield($token->[1],$text,"",80,8,1);
}	}
if ($target eq 'modified') {	if ($target eq 'modified') {
Line 1578 sub start_endouttext {	Line 1991 sub start_endouttext {
if ($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 1611 sub start_simpleeditbutton {	Line 2033 sub start_simpleeditbutton {
(&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {	(&Apache::lonnet::allowed('mdc',$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;
Line 1623 sub end_simpleeditbutton {	Line 2045 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.1.334
changed lines
	Added in v.1.441