# The LearningOnline Network with CAPA
# <script> definiton
#
# $Id: scripttag.pm,v 1.63 2002/01/17 16:40:59 albertel Exp $
#
# Copyright Michigan State University Board of Trustees
#
# This file is part of the LearningOnline Network with CAPA (LON-CAPA).
#
# LON-CAPA is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# LON-CAPA is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with LON-CAPA; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#
# /home/httpd/html/adm/gpl.txt
#
# http://www.lon-capa.org/
#
# 2/21 Guy
# 8/20 Gerd Kortemeyer
package Apache::scripttag;
use strict;
use Apache::lonnet;
use Apache::style;
#Globals
# this used to pass around the standard callsub arguments to a tag func
# so xmlparse can reenter the inner_xmlparse loop.
@Apache::scripttag::parser_env = ();
BEGIN {
&Apache::lonxml::register('Apache::scripttag',
('script','scriptlib','parserlib','import',
'window','display','storetc','physnet',
'standalone'));
}
sub start_script {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
@Apache::scripttag::parser_env = @_;
my $result='';
my $type= &Apache::lonxml::get_param('type',$parstack,$safeeval);
&Apache::lonxml::debug("found type of $type");
if ($type eq "loncapa/perl") {
my $bodytext=&Apache::lonxml::get_all_text("/script",$$parser[$#$parser]);
if ( $target eq "modified" ) {
$result=$token->[4].&Apache::edit::modifiedfield();
} elsif ( $target eq 'web' || $target eq 'tex' ||
$target eq 'grade' || $target eq 'answer') {
&Apache::run::run($bodytext,$safeeval);
if (($target eq 'answer') && ($Apache::lonhomework::viewgrades == 'F')) {
$Apache::lonxml::evaluate--;
$result.="<a href=\"javascript:newWindow=open(\'\',\'new_W\',\'width=500,height=200,scrollbars=1\');newWindow.document.open(\'text/html\',\'replace\');newWindow.document.writeln(\'<html><head><title>newwindow</title></head><body bgcolor="#FFFFFF"><pre>";
my $listing= &Apache::run::dump($target,$safeeval);
$listing =~ s/\n/\\n/g;
$listing =~ s/\"/"/g;
$listing =~ s/\'/’/g;
$listing =~ s/</</g;
$listing =~ s/>/>/g;
$listing =~ s/&/&/g;
$result.=$listing;
$result.= "</pre></body></html>\');newWindow.document.close();void(0);\">Script Vars</a><br />";
}
} elsif ($target eq "edit" ) {
#&Apache::run::run($bodytext,$safeeval);
#$result="<br /> <$token->[1]> output: <br />$bodytext<br />Source:<br />";
$result=&Apache::edit::tag_start($target,$token,'Script');
$result.=&Apache::edit::editfield($token->[1],$bodytext,'',50,4);
}
} else {
if ($target ne "meta") { $result = $token->[4]; }
}
return $result;
}
sub end_script {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
if ( $target eq "meta" ) { return ''; }
my $type = &Apache::lonxml::get_param('type',$parstack,$safeeval);
my $result='';
#other script blocks need to survive
if ($type ne "loncapa/perl") {
return $token->[2];
} elsif ($target eq 'edit' ) {
return &Apache::edit::end_table();
} elsif (($ENV{'request.state'} eq 'construct') && ($target eq 'answer')) {
$Apache::lonxml::evaluate++;
}
return '';
}
sub start_display {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
my $result;
my $bodytext=&Apache::lonxml::get_all_text("/display",$$parser[$#$parser]);
if ( $target eq "modified" ) {
$result=$token->[4].&Apache::edit::modifiedfield();
} elsif ( $target eq 'web' || $target eq 'tex' ||
$target eq 'grade' || $target eq 'answer') {
$result=&Apache::run::run($bodytext,$safeeval);
if ($target eq 'grade' || $target eq 'answer' ) {
$result=''; # grade should produce no output
}
} elsif ($target eq "edit" ) {
#$result =
# "<br /> <$token->[1]> output: <br />$bodytext<br />Source:<br />";
#$result.=&Apache::edit::editfield($token->[1],$bodytext,'',40,1);
$result=&Apache::edit::tag_start($target,$token,'Script With Display');
$result.=&Apache::edit::editfield($token->[1],$bodytext,'',40,1)
}
return $result;
}
sub end_display {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
if ($target eq 'edit' ) { return &Apache::edit::end_table(); }
return '';
}
sub start_scriptlib {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
my $bodytext;
my $result ='';
my $error='';
if ($target eq 'web' || $target eq 'grade' || $target eq 'meta' || $target eq 'edit' || $target eq 'answer') {
$bodytext=$$parser[$#$parser]->get_text("/scriptlib");
$bodytext=&Apache::run::evaluate($bodytext,$safeeval,
$$parstack[$#$parstack]);
my $location=&Apache::lonnet::filelocation($Apache::lonxml::pwd['-1'],
$bodytext);
my $script=&Apache::lonnet::getfile($location);
if ($script == -1) {
if ($target eq 'edit') {
$error='</tr><tr><td>Errors</td><td colspan="2"><b> Unable to find <i>'.$location.'</i></b></td>'."\n";
} else {
&Apache::lonxml::error("<b> Unable to find <i>$location</i> for scriptlib</b>");
return "";
}
}
&Apache::run::run($script,$safeeval);
#&Apache::lonxml::debug("ran $bodytext:<br />".&Apache::lonnet::getfile($bodytext)."<br />");
}
if ($target eq "edit" ) {
$result=
&Apache::edit::tag_start($target,$token,'New Script Functions').
&Apache::edit::editfield($token->[1],$bodytext,'',40,1).
$error.'</td></tr>'.
&Apache::edit::end_table();
}
if ($target eq "modified" ) {
$bodytext=$$parser[$#$parser]->get_text("/scriptlib");
$result=&Apache::edit::modifiedfield($token);
&Apache::lonxml::debug($result);
}
return $result;
}
sub end_scriptlib {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
my @result;
if ($target eq "edit" ) { $result[1]='no'; }
return @result;
}
sub start_parserlib {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
my $bodytext;
my $result ="";
my $error='';
if ($target eq 'web' || $target eq 'grade' || $target eq 'meta' || $target eq 'edit' || $target eq 'answer') {
$bodytext=$$parser[$#$parser]->get_text("/parserlib");
$bodytext=&Apache::run::evaluate($bodytext,$safeeval,
$$parstack[$#$parstack]);
my $location=&Apache::lonnet::filelocation($Apache::lonxml::pwd['-1'],
$bodytext);
my $styletext=&Apache::lonnet::getfile($location);
#&Apache::lonxml::debug("found :$bodytext: in :$location: with :$styletext:");
if ($styletext == -1) {
if ($target eq 'edit') {
$error='</tr><tr><td>Errors</td><td colspan="2"><b> Unable to find <i>'.$location.'</i></b></td>'."\n";
} else {
&Apache::lonxml::error("<b> Unable to find <i>$location</i> for parserlib</b>");
return "";
}
}
%$style = ( %$style , &Apache::style::styleparser($target,$styletext));
}
if ($target eq "edit" ) {
$result=
&Apache::edit::tag_start($target,$token,'New Tag Definitions').
&Apache::edit::editfield($token->[1],$bodytext,'',40,1).
$error.'</td></tr>'.
&Apache::edit::end_table();
}
if ($target eq "modified" ) {
$bodytext=$$parser[$#$parser]->get_text("/parserlib");
$result=&Apache::edit::modifiedfield($token);
&Apache::lonxml::debug($result);
}
return $result;
}
sub end_parserlib {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
my @result;
if ($target eq "edit" ) { $result[1]='no'; }
return @result;
}
sub start_window {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
my $result = '';
if ($target eq 'web') {
&Apache::lonxml::startredirection;
} elsif ($target eq 'tex') {
$result = '\unskip\footnote{';
}
return $result;
}
sub end_window {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
my $result;
if ($target eq 'web') {
my $output=&Apache::lonxml::endredirection;
$output =~ s/\"/\"\;/g;
$result = "<a href=\"javascript:newWindow=open(\'\',\'new_W\',\'width=500,height=200,scrollbars=1\');newWindow.document.open(\'text/html\',\'replace\');newWindow.document.writeln(\'<html><head><title>newwindow</title></head><body bgcolor="#FFFFFF"> $output </body></html>\');newWindow.document.close();void(0);\"><sup>*</sup></a>";
} elsif ($target eq 'tex') {
$result = '}';
} else {
$result = '';
}
return $result;
}
sub start_import {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
my $bodytext=$$parser[$#$parser]->get_text("/import");
my $result ="";
$bodytext=Apache::run::evaluate($bodytext,$safeeval,$$parstack[$#$parstack]);
if ($target eq 'web' || $target eq 'grade' || $target eq 'answer') {
# FIXME this probably needs to be smart about construction vs.
# non construction space.
my $location=&Apache::lonnet::filelocation($Apache::lonxml::pwd['-1'],$bodytext);
my $file=&Apache::lonnet::getfile($location);
if ($file == -1) {
&Apache::lonxml::error("<b> Unable to find <i>$bodytext as $location</i> for import</b>");
return "";
}
my $dir=$location;
$dir=~s:/[^/]*$::;
# &Apache::lonxml::debug("directory $dir $location file $file \n<b>END</b>\n");
my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);
if (!$id) { $id=$Apache::lonxml::curdepth; }
push(@Apache::inputtags::import,$id);
&Apache::lonxml::newparser($parser,\$file,$dir);
} elsif ($target eq "edit" ) {
$result.=&Apache::edit::tag_start($target,$token);
$result.=&Apache::edit::editfield($token->[1],$bodytext,'',40,1);
#FIXME this need to convert $bodytext to be a contruction space reference
#my $location=&Apache::lonnet::filelocation($Apache::lonxml::pwd['-1'],$bodytext);
#$result.="Click<a href=\"$location\">here</a> to edit<br />"
} elsif ($target eq 'modified') {
$bodytext=$$parser[$#$parser]->get_text("/import");
$result=&Apache::edit::modifiedfield($token);
&Apache::lonxml::debug($result);
} elsif ($target eq 'meta') {
my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);
$result.='<import part="'.$Apache::inputtags::part;
if ($id) {
$result.='" id="'.$id;
}
$result.='">';
$result.=$bodytext;
$result.='</import>';
}
return $result;
}
sub end_import {
pop(@Apache::inputtags::import);
return '';
}
sub start_storetc {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
my $result = '';
&Apache::lonxml::startredirection;
return $result;
}
sub end_storetc {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
my $result;
my $output=&Apache::lonxml::endredirection;
$output =~ s/\"/\"\;/g;
$result = '{\bf '.$output.'.}}\write\tcfile{\protect\tcpc{ '.$output.'.}{\the\value{relpage}}}';
return $result;
}
sub start_physnet {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
my $bodytext = '/adm/includes/physnet.sty';
my $location=&Apache::lonnet::filelocation($Apache::lonxml::pwd['-1'],$bodytext);
my $cbistyletext=&Apache::lonnet::getfile($location);
%$style = (%$style,&Apache::style::styleparser($target,$cbistyletext));
$$parser['-1']->unget_token($token);
# if ( defined($$style{'physnet'}) ) {
# &Apache::lonxml::newparser($parser,\$$style{'physnet'});
# }
return "";
}
sub end_physnet {
return '';
}
sub start_standalone {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
if ($target eq 'web' && defined($ENV{'request.course.id'}) ) {
my $inside = &Apache::lonxml::get_all_text("/standalone",$$parser[-1]);
}
return '';
}
sub end_standalone {
return '';
}
sub xmlparse {
my ($string) = @_;
&Apache::lonxml::debug("Got $string");
my ($target,$token,$tagstack,$parstack,$oldparser,$safeeval,$style)=
@Apache::scripttag::parser_env;
my @parser;
&Apache::lonxml::newparser(\@parser,\$string);
my $result=&Apache::lonxml::inner_xmlparse($target,$tagstack,
$parstack,\@parser,
$safeeval,$style);
return $result;
}
1;
__END__
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