--- loncom/homework/structuretags.pm 2002/01/30 17:37:21 1.79
+++ loncom/homework/structuretags.pm 2003/04/02 19:52:05 1.157
@@ -1,7 +1,7 @@
# The LearningOnline Network with CAPA
# definition of tags that give a structure to a document
#
-# $Id: structuretags.pm,v 1.79 2002/01/30 17:37:21 albertel Exp $
+# $Id: structuretags.pm,v 1.157 2003/04/02 19:52:05 sakharuk Exp $
#
# Copyright Michigan State University Board of Trustees
#
@@ -29,10 +29,13 @@
# 6/26/2001 fixed extra web display at end of tags
# 8/17,8/18,8/20 Gerd Kortemeyer
+
package Apache::structuretags;
use strict;
use Apache::lonnet;
+use Apache::File();
+use Apache::lonmenu;
BEGIN {
&Apache::lonxml::register('Apache::structuretags',('block','while','randomlist','problem','library','web','tex','part','preduedate','postanswerdate','solved','notsolved','startouttext','endouttext'));
@@ -41,7 +44,7 @@ BEGIN {
sub start_web {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
- my $bodytext=&Apache::lonxml::get_all_text("/web",$$parser[$#$parser]);
+ my $bodytext=&Apache::lonxml::get_all_text("/web",$parser);
if ($target eq 'web') {
return $bodytext;
}
@@ -54,9 +57,9 @@ sub end_web {
sub start_tex {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
- my $bodytext=&Apache::lonxml::get_all_text("/tex",$$parser[$#$parser]);
+ my $bodytext=&Apache::lonxml::get_all_text("/tex",$parser);
if ($target eq 'tex') {
- return $bodytext
+ return $bodytext.' ';
}
return '';
}
@@ -79,12 +82,12 @@ sub page_start {
if (!defined($found{'html'})) {
$result=&Apache::londefdef::start_html($target,$token,$tagstack,$parstack,
$parser,$safeeval);
- $head_tag_start='
'.&Apache::lonxml::registerurl();
+ $head_tag_start=''.&Apache::lonmenu::registerurl(undef,$target);
}
my $body_tag_start;
if (!defined($found{'body'})) {
- my $body_tag_start='';
+ $body_tag_start.='>'.&Apache::lonmenu::menubuttons(undef,$target,1);
+ if ($target eq 'web' && $ENV{'request.state'} ne 'construct') {
+ my ($symb)=&Apache::lonxml::whichuser();
+ if ($symb eq '') {
+ my $help = &Apache::loncommon::help_open_topic("Ambiguous_Reference");
+ $help="Browsing or ambiguous reference, submissions ignored $help
";
+ $body_tag_start.=$help;
+ }
+ }
+ }
+ my $form_tag_start;
+ if (!defined($found{'form'})) {
+ $form_tag_start='
ENDCHECKOUT
}
@@ -162,21 +241,29 @@ ENDCHECKOUT
sub start_problem {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
- if ( $Apache::inputtags::part ne '' ) {
+ $Apache::lonhomework::parsing_a_problem=1;
+ # meta is called from lonpublisher, which doesn't uses the normal
+ # lonhomework method of parsing the file which means that inputtags
+ # won't get reset
+ if ( $Apache::inputtags::part ne '' && $target != 'meta' ) {
&Apache::lonxml::error('Only one problem allowed in a .problem file');
- my $bodytext=&Apache::lonxml::get_all_text("/problem",$$parser[-1]);
+ my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser);
return '';
}
#intialize globals
$Apache::inputtags::part='0';
@Apache::inputtags::responselist = ();
@Apache::inputtags::previous=();
- &initialize_storage();
- if ($target eq 'web') {
- &Apache::lonhomework::showhash(%Apache::lonhomework::history);
+ @Apache::inputtags::previous_version=();
+ $Apache::structuretags::printanswer='No';
+ if ($target ne 'analyze') {
+ &initialize_storage();
+ if ($target eq 'web') {
+ &Apache::lonhomework::showhash(%Apache::lonhomework::history);
+ }
+ $Apache::lonhomework::type=&Apache::lonnet::EXT('resource.0.type');
+ &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
}
- $Apache::lonhomework::type=&Apache::lonnet::EXT('resource.0.type');
- &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
if ($Apache::lonhomework::type eq '') {
my $uri=$ENV{'request.uri'};
if ($uri=~/\.(\w+)$/) {
@@ -195,11 +282,12 @@ sub start_problem {
my $accessmsg;
#should get back a or the neccesary stuff to start XML/MathML
- my ($result,$head_tag_start,$body_tag_start)=
+ my ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
&page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
+ if ($target eq 'tex' and $ENV{'request.symb'} =~ m/\.page_/) { $result = '';}
-
- if ($target eq 'web' || $target eq 'grade' || $target eq 'answer') {
+ if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval); }
+ if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' || $target eq 'tex') {
#handle exam checkout
if ($Apache::lonhomework::type eq 'exam') {
my $token=$Apache::lonhomework::history{"resource.0.outtoken"};
@@ -211,58 +299,54 @@ sub start_problem {
}
#handle rand seed in construction space
- my $rndseed;
- if ($ENV{'request.state'} eq "construct") {
- $rndseed=$ENV{'form.rndseed'};
- if (!$rndseed) {
- $rndseed=time;
- $ENV{'form.rndseed'}=$rndseed;
- }
- &Apache::run::run('$external::randomseed='.$rndseed.';',$safeeval);
- }
+ my $rndseed=&setup_rndseed($safeeval);
($status,$accessmsg) = &Apache::lonhomework::check_access('0');
push (@Apache::inputtags::status,$status);
my $expression='$external::datestatus="'.$status.'";';
$expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
&Apache::run::run($expression,$safeeval);
+ &Apache::lonxml::debug("Got $status");
if (( $status eq 'CLOSED' ) ||
( $status eq 'UNCHECKEDOUT') ||
- ( $status eq 'BANNED')) {
- my $bodytext=&Apache::lonxml::get_all_text("/problem",$$parser[$#$parser]);
+ ( $status eq 'BANNED') ||
+ ( $status eq 'UNAVAILABLE')) {
+ my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser);
if ( $target eq "web" ) {
$result.= $head_tag_start.'';
- my $msg=$body_tag_start.
- 'Not open to be viewed
';
+ my $msg=$body_tag_start;
+ if ($status eq 'UNAVAILABLE') {
+ $result.='Unable to determine if this resource is open due to network problems. Please try again later.
';
+ } else {
+ $result.='Not open to be viewed
';
+ }
if ($status eq 'CLOSED') {
$msg.='The problem '.$accessmsg;
} elsif ($status eq 'UNCHECKEDOUT') {
$msg.=&checkout_msg;
}
$result.=$msg.'
';
+ } elsif ($target eq 'tex') {
+ $result.='\begin{document}\noindent \vskip 1 mm \begin{minipage}{\textwidth}\vskip 0 mm';
+ if ($status eq 'UNAVAILABLE') {
+ $result.='Unable to determine if this resource is open due to network problems. Please try again later.\vskip 0 mm ';
+ } else {
+ $result.="Problem is not open to be viewed. It $accessmsg \\vskip 0 mm ";
+ }
}
} elsif ($target eq 'web') {
- my $name= &Apache::lonxml::get_param('name',$parstack,$safeeval);
- if ($name eq '') {
- $name=&Apache::lonnet::EXT('resource.title');
- if ($name eq 'con_lost') { $name = ''; }
- }
- $Apache::lonhomework::name=$name;
+ my $name= &get_resource_name($parstack,$safeeval);
if ($status eq 'CAN_ANSWER') {
# create a page header and exit
- $result.="$head_tag_start$name\n
- $body_tag_start\n
-