Annotation of loncom/homework/chemresponse.pm, revision 1.39

1.1       albertel    1: # The LearningOnline Network with CAPA
                      2: # chemical equation style response
                      3: #
1.39    ! www         4: # $Id: chemresponse.pm,v 1.38 2004/08/12 04:33:22 albertel Exp $
1.1       albertel    5: #
                      6: # Copyright Michigan State University Board of Trustees
                      7: #
                      8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
                      9: #
                     10: # LON-CAPA is free software; you can redistribute it and/or modify
                     11: # it under the terms of the GNU General Public License as published by
                     12: # the Free Software Foundation; either version 2 of the License, or
                     13: # (at your option) any later version.
                     14: #
                     15: # LON-CAPA is distributed in the hope that it will be useful,
                     16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
                     17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
                     18: # GNU General Public License for more details.
                     19: #
                     20: # You should have received a copy of the GNU General Public License
                     21: # along with LON-CAPA; if not, write to the Free Software
                     22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
                     23: #
                     24: # /home/httpd/html/adm/gpl.txt
                     25: #
                     26: # http://www.lon-capa.org/
                     27: #
                     28: #
                     29: package Apache::chemresponse;
                     30: use strict;
                     31: use Apache::lonxml;
                     32: use Apache::lonnet;
                     33: 
                     34: BEGIN {
1.6       albertel   35:     &Apache::lonxml::register('Apache::chemresponse',('organicresponse','organicstructure','reactionresponse'));
1.1       albertel   36: }
                     37: 
1.34      albertel   38: sub chem_standard_order {
                     39:     my ($reaction) = @_;
                     40:     my ($re,$pr) = split(/->|<=>/,$reaction);
                     41:     my @reactants = split(/\s\+/,$re);
                     42:     my @products =  split(/\s\+/,$pr);
                     43:     foreach my $substance (@reactants,@products) {
                     44: 	$substance =~ s/(\^\d*)\s+/$1_/g;         # protect superscript space
                     45: 	$substance =~ s/\s*//g;                   # strip whitespace
                     46: 	$substance =~ s/_/ /g;                    # restore superscript space
                     47:     }
                     48:     @reactants = sort @reactants;
                     49:     @products = sort @products;
                     50:     my $standard = '';
                     51:     foreach my $substance (@reactants) {
                     52: 	$standard .= $substance;
                     53: 	$standard .= ' + ';
                     54:     }
                     55:     $standard =~ s/ \+ $//;              # get rid of trailing plus sign
                     56:     $standard .= ' -> ';
                     57:     foreach my $substance (@products) {
                     58: 	$standard .= $substance;
                     59: 	$standard .= ' + ';
                     60:     }
                     61:     $standard =~ s/ \+ $//;              # get rid of trailing plus sign
                     62:     return $standard;
                     63: }
                     64: 
1.30      www        65: sub separate_jme_window {
1.6       albertel   66:     my ($smile_input,$jme_input,$molecule,$options)=@_;
1.2       albertel   67:     my $smilesection;
                     68:     if (defined($smile_input)) {
                     69: 	$smilesection=<<SMILESECTION;
1.21      albertel   70:         smiles = document.applets.JME.smiles();
1.2       albertel   71: 	opener.document.lonhomework.$smile_input.value = smiles;
                     72: SMILESECTION
                     73:     }
                     74:     my $jmesection;
                     75:     if (defined($jme_input)) {
                     76: 	$jmesection=<<JMESECTION;
                     77: 	jmeFile = document.applets.JME.jmeFile();
                     78: 	opener.document.lonhomework.$jme_input.value = jmeFile;
                     79: JMESECTION
                     80:     }
                     81: 
1.14      albertel   82:     if ($molecule) { $molecule='<param name="jme" value="'.$molecule.'" />'; }
1.1       albertel   83:     my $body=<<CHEMPAGE;
                     84: <html>
                     85: <head>
                     86: <title>Molecule Editor</title>
                     87: <script language="JavaScript">
                     88: function submitSmiles() {
1.21      albertel   89:     jmeFile = document.applets.JME.jmeFile();
                     90:     if (jmeFile == "") {
1.1       albertel   91: 	alert("Nothing to submit");
                     92:     } else {
1.21      albertel   93:         $jmesection
1.2       albertel   94:         $smilesection
1.1       albertel   95: 	window.close();
                     96:     }
                     97: }
                     98: function openHelpWindow() {
1.2       albertel   99:     window.open("/adm/jme/jme_help.html","","scrollbars=yes,resizable=yes,width=500,height=600");
1.1       albertel  100: }
                    101: </script>
                    102: </head>
                    103: <body bgcolor="#ffffff">
                    104: <center>
1.27      albertel  105: <applet code="JME.class" name="JME" archive="/adm/jme/JME.jar" width="440" height="390">
1.1       albertel  106: You have to enable Java and JavaScript on your machine.
1.12      albertel  107: $molecule
1.6       albertel  108: <param name="options" value="$options" />
1.1       albertel  109: </applet><br />
                    110: <font face="arial,helvetica,sans-serif" size=-1><a href="http://www.molinspiration.com/jme/index.html">JME Editor</a> courtesy of Peter Ertl, Novartis</font>
                    111: <form>
                    112: <input type="button" name="submit" value="Insert Answer" onClick = "submitSmiles();" />
                    113: <br />
                    114: <input type="button" value="  Close  " onClick = "window.close()" />
                    115: &nbsp;&nbsp;
                    116: <input type="button" value="  Help  " onClick = "openHelpWindow()" />
                    117: </form>
                    118: </center>
                    119: </body>
                    120: </html>
                    121: CHEMPAGE
1.32      albertel  122:     $body=&HTML::Entities::encode($body,'<>&"');
1.1       albertel  123:     $body=~s/\n/ /g;
1.39    ! www       124:     my $nothing= &Apache::lonhtmlcommon::javascript_nothing();
1.1       albertel  125:     my $result=<<CHEMINPUT;
1.39    ! www       126: <input type="button" value="Draw Molecule" onClick="javascript:editor=window.open('','','width=500,height=500,scrollbars=no,resizable=yes');editor.document.open($nothing,'replace');editor.document.writeln('$body')" />
1.1       albertel  127: CHEMINPUT
                    128:     return $result;
                    129: }
                    130: 
1.6       albertel  131: sub start_organicresponse {
1.1       albertel  132:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                    133:     my $result;
                    134:     my $partid = $Apache::inputtags::part;
                    135:     my $id = &Apache::response::start_response($parstack,$safeeval);
                    136:     if ($target eq 'meta') {
1.28      albertel  137: 	$result=&Apache::response::meta_package_write('organicresponse');
1.1       albertel  138:     } elsif ($target eq 'web') {
                    139: 	my $molecule;
                    140: 	if (defined($Apache::lonhomework::history{"resource.$partid.$id.molecule"})) {
                    141: 	    $molecule=$Apache::lonhomework::history{"resource.$partid.$id.molecule"};
                    142: 	} else {
                    143: 	    $molecule=&Apache::lonxml::get_param('molecule',$parstack,
                    144: 						 $safeeval);
                    145: 	}
1.15      albertel  146: 	my $options=&Apache::lonxml::get_param('options',$parstack,
                    147: 					       $safeeval);
1.30      www       148: 	$result=&separate_jme_window("HWVAL_$id","MOLECULE_$id",$molecule,$options);
1.1       albertel  149: 	$result.= '<input type="hidden" name="MOLECULE_'.$id.'" value="" />';
1.2       albertel  150:     } elsif ($target eq 'edit') {
                    151: 	$result .=&Apache::edit::tag_start($target,$token);
1.12      albertel  152: 	my $options=&Apache::lonxml::get_param('options',$parstack,
                    153: 					       $safeeval);
                    154: 	if ($options !~ /multipart/) { $options.=',multipart'; }
1.7       albertel  155: 	$result .='<nobr>'.
                    156: 	    &Apache::edit::text_arg('Starting Molecule:','molecule',
                    157: 				    $token,40);
1.2       albertel  158: 	my $molecule=&Apache::lonxml::get_param('molecule',$parstack,
                    159: 						$safeeval);
1.30      www       160: 	$result .=&separate_jme_window(undef,
1.2       albertel  161: 		      &Apache::edit::html_element_name('molecule'),
1.12      albertel  162: 		      $molecule,$options);
1.7       albertel  163: 	$result .='</nobr><br /><nobr>';
1.2       albertel  164: 	$result .=&Apache::edit::text_arg('Correct Answer:','answer',
                    165: 					  $token,40);
                    166: 	$result .=&Apache::edit::hidden_arg('jmeanswer',$token);
                    167: 	my $jmeanswer=&Apache::lonxml::get_param('jmeanswer',$parstack,
                    168: 						 $safeeval);
1.30      www       169: 	$result .=&separate_jme_window(
1.2       albertel  170:                       &Apache::edit::html_element_name('answer'),
                    171:                       &Apache::edit::html_element_name('jmeanswer'),
1.12      albertel  172: 		      $jmeanswer,$options);
                    173: 	$result .='</nobr><br />';
                    174: 	$result .=&Apache::edit::checked_arg('Options:','options',
1.29      www       175: 				    [ ['autoez','Auto E,Z stereochemistry'],
1.18      albertel  176: 				      ['multipart','Multipart Structures'],
1.12      albertel  177: 				      ['nostereo','No stereochemistry'],
                    178: 				      ['reaction','Is a reaction'],
1.18      albertel  179: 				      ['number','Able to number atoms'] ],
1.12      albertel  180: 					     ,$token);
1.2       albertel  181: 	$result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
                    182:     } elsif ($target eq 'modified') {
                    183: 	my $constructtag=&Apache::edit::get_new_args($token,$parstack,
                    184: 						     $safeeval,'molecule',
1.6       albertel  185: 						     'answer','jmeanswer',
1.12      albertel  186: 						     'options');
1.2       albertel  187: 	if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.1       albertel  188:     }
                    189:     return $result;
                    190: }
                    191: 
1.6       albertel  192: sub end_organicresponse {
1.1       albertel  193:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                    194:     my $result;
                    195:     if ($target eq 'grade' && defined($ENV{'form.submitted'})) {
1.31      albertel  196: 	&Apache::response::setup_params($$tagstack[-1],$safeeval);
1.1       albertel  197: 	my $response = &Apache::response::getresponse();
                    198: 	if ( $response =~ /[^\s]/) {
                    199: 	    my $partid = $Apache::inputtags::part;
                    200: 	    my $id = $Apache::inputtags::response['-1'];
1.13      albertel  201: 	    my (@answers)=&Apache::lonxml::get_param_var('answer',$parstack,$safeeval);
1.1       albertel  202: 	    my %previous = &Apache::response::check_for_previous($response,$partid,$id);
                    203: 	    $Apache::lonhomework::results{"resource.$partid.$id.submission"}=$response;
                    204: 	    my $ad;
1.13      albertel  205: 	    foreach my $answer (@answers) {
                    206: 		&Apache::lonxml::debug("submitted a $response for $answer<br \>\n");
                    207: 		if ($response eq $answer) {
                    208: 		    $ad='EXACT_ANS';
                    209: 		    last;
                    210: 		} else {
                    211: 		    $ad='INCORRECT';
                    212: 		}
1.1       albertel  213: 	    }
                    214: 	    &Apache::response::handle_previous(\%previous,$ad);
                    215: 	    $Apache::lonhomework::results{"resource.$partid.$id.awarddetail"}=$ad;
                    216: 	    $Apache::lonhomework::results{"resource.$partid.$id.molecule"}=$ENV{"form.MOLECULE_$id"};
                    217: 	}
1.2       albertel  218:     } elsif ($target eq "edit") {
                    219: 	$result.= &Apache::edit::tag_end($target,$token,'');
1.15      albertel  220:     } elsif ($target eq 'answer') {
                    221: 	my (@answers)=&Apache::lonxml::get_param_var('answer',$parstack,
                    222: 						     $safeeval);
                    223: 	$result.=&Apache::response::answer_header('organicresponse');
                    224: 	foreach my $answer (@answers) {
                    225: 	    $result.=&Apache::response::answer_part('organicresponse',$answer);
                    226: 	}
                    227: 	$result.=&Apache::response::answer_footer('organicresponse');
1.1       albertel  228:     }
                    229:     &Apache::response::end_response;
                    230:     return $result;
                    231: }
                    232: 
1.6       albertel  233: sub start_organicstructure {
1.3       albertel  234:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                    235:     my $result;
                    236:     if ($target eq 'web') {
                    237: 	my $width=&Apache::lonxml::get_param('width',$parstack,$safeeval);
                    238: 	my $molecule=&Apache::lonxml::get_param('molecule',$parstack,$safeeval);
1.12      albertel  239: 	my $options=&Apache::lonxml::get_param('options',$parstack,$safeeval);
1.23      albertel  240: 	my $id=&Apache::loncommon::get_cgi_id();
1.19      albertel  241: 	$result="<img src='/cgi-bin/convertjme.pl?$id'";
                    242: 	if ($options =~ /border/) { $result.= ' border="1"'; }
                    243: 	$result.=' />';
1.16      albertel  244: 	&Apache::lonnet::appenv(
                    245:             'cgi.'.$id.'.JME'   => &Apache::lonnet::escape($molecule),
1.17      albertel  246: 	    'cgi.'.$id.'.PNG' => 1,
1.16      albertel  247: 	    'cgi.'.$id.'.WIDTH' => $width );
1.17      albertel  248:     } elsif ($target eq 'tex') {
1.38      albertel  249: 	my $texwidth=&Apache::lonxml::get_param('texwidth',$parstack,$safeeval,undef,1);
1.17      albertel  250: 	if (!$texwidth) { $texwidth='90'; }
                    251: 	my $molecule=&Apache::lonxml::get_param('molecule',$parstack,$safeeval);
                    252: 	my $options=&Apache::lonxml::get_param('options',$parstack,$safeeval);
                    253: 	my $filename = $ENV{'user.name'}.'_'.$ENV{'user.domain'}.
                    254: 	    '_'.time.'_'.$$.int(rand(1000)).'_organicstructure';
                    255: 	my $id=$filename;
                    256: 	&Apache::lonnet::appenv(
                    257: 		     'cgi.'.$id.'.JME'   => &Apache::lonnet::escape($molecule),
                    258: 		     'cgi.'.$id.'.PS' => 1,
                    259: 		     'cgi.'.$id.'.WIDTH' => $texwidth );
                    260: 	$id=&Apache::lonnet::escape($id);
                    261: 	&Apache::lonxml::register_ssi("/cgi-bin/convertjme.pl?$id");
1.20      albertel  262: 	if ($options =~ /border/) { $result.= '\fbox{'; }
                    263: 	$result .= '\graphicspath{{/home/httpd/perl/tmp/}}\includegraphics[width='.$texwidth.' mm]{'.$filename.'.eps}';
                    264: 	if ($options =~ /border/) { $result.= '} '; }
1.3       albertel  265:     } elsif ($target eq 'edit') {
                    266: 	$result .=&Apache::edit::tag_start($target,$token);
1.22      albertel  267: 	$result .=&Apache::edit::text_arg('Width (pixels):','width',$token,5);
                    268: 	$result .=&Apache::edit::text_arg('TeXwidth (mm):','texwidth',$token,5);
1.12      albertel  269: 	$result .='<nobr>';
1.3       albertel  270: 	$result .=&Apache::edit::text_arg('Molecule:','molecule',$token,40);
                    271: 	my $molecule=&Apache::lonxml::get_param('molecule',$parstack,
                    272: 						$safeeval);
1.12      albertel  273: 	my $options=&Apache::lonxml::get_param('options',$parstack,
                    274: 					       $safeeval);
                    275: 	if ($options !~ /reaction/) {
                    276: 	    $options.= ',multipart,number';
                    277: 	}
                    278: 						   
1.30      www       279: 	$result .=&separate_jme_window(undef,
1.12      albertel  280: 				 &Apache::edit::html_element_name('molecule'),
                    281: 				       $molecule,$options);
                    282: 	$result.="</nobr><br />";
                    283: 	$result .=&Apache::edit::checked_arg('Options:','options',
1.18      albertel  284: 					     [ ['reaction','Is a reaction'],
1.12      albertel  285: 					       ['border','Draw a border'] ],
                    286: 					     $token);
1.24      albertel  287: 	$result .=&Apache::edit::end_row();
1.3       albertel  288:     } elsif ($target eq 'modified') {
                    289: 	my $constructtag=&Apache::edit::get_new_args($token,$parstack,
                    290: 						     $safeeval,'molecule',
1.22      albertel  291: 						     'width','texwidth',
                    292: 						     'options');
1.3       albertel  293: 	if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
                    294:     }
                    295:     return $result;
1.1       albertel  296: }
                    297: 
1.6       albertel  298: sub end_organicstructure {
1.3       albertel  299:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                    300:     my $result;
                    301:     if ($target eq "edit") {
                    302: 	$result.= &Apache::edit::tag_end($target,$token,'');
                    303:     }
1.4       albertel  304:     return $result;
                    305: }
                    306: 
1.9       albertel  307: sub edit_reaction_button {
1.11      albertel  308:     my ($id,$field,$reaction)=@_;
1.10      albertel  309:     my $id_es=&Apache::lonnet::escape($id);
                    310:     my $field_es=&Apache::lonnet::escape($field);
1.11      albertel  311:     my $reaction_es=&Apache::lonnet::escape($reaction);
1.39    ! www       312:     my $nothing= &Apache::lonhtmlcommon::javascript_nothing();
1.9       albertel  313:     my $result=<<EDITREACTION;
1.10      albertel  314: <script type="text/javascript">
                    315:     function create_reaction_window_${id}_${field} () {
                    316: 	editor=window.open('','','width=500,height=270,scrollbars=no,resizable=yes');
1.39    ! www       317: 	editor.document.open($nothing,'replace');
1.37      albertel  318: 	editor.document.writeln('<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML//EN"><html> <head><title>LON-CAPA Reaction Editor</title></head><frameset rows="30%,*" border="0">  <frame src="/res/adm/pages/reactionresponse/reaction_viewer.html?inhibitmenu=yes" name="viewer" scrolling="no" />  <frame src="/res/adm/pages/reactionresponse/reaction_editor.html?inhibitmenu=yes&reaction=$reaction_es&id=$id_es&field=$field_es" name="editor" scrolling="no" /> </frameset> </html>');
1.10      albertel  319:     }
                    320: </script>
1.36      albertel  321: <input type='button' value='Edit Answer' onClick="javascript:create_reaction_window_${id}_${field}();void(0);" />
1.9       albertel  322: EDITREACTION
                    323:     return $result;
                    324: }
                    325: 
1.4       albertel  326: sub start_reactionresponse {
                    327:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                    328:     my $result;
                    329:     my $id = &Apache::response::start_response($parstack,$safeeval);
1.10      albertel  330:     if ($target eq 'meta') {
1.28      albertel  331: 	$result=&Apache::response::meta_package_write('reactionresponse');
1.10      albertel  332:     } elsif ($target eq 'web') {
1.11      albertel  333: 	my $partid = $Apache::inputtags::part;
                    334: 	my $id = $Apache::inputtags::response['-1'];
                    335: 	my $reaction=$Apache::lonhomework::history{"resource.$partid.$id.submission"};
1.35      albertel  336: 	if ($reaction eq '') {  $reaction=&Apache::lonxml::get_param('initial',$parstack,$safeeval); }
1.33      albertel  337: 	my $status=$Apache::inputtags::status['-1'];
                    338: 	if ($status eq 'CAN_ANSWER') {
                    339: 	    $result.=&edit_reaction_button($id,"HWVAL_$id",$reaction);
                    340: 	}
                    341: 	if (  &Apache::response::show_answer() ) {
                    342: 	    my $ans=&Apache::lonxml::get_param('answer',$parstack,$safeeval);
                    343: 	    $ans=~s/(\\|\')/\\$1/g;
                    344: 	    $Apache::inputtags::answertxt{$id}=&Apache::run::run("return &chemparse('$ans');",$safeeval);
                    345: 	}
1.4       albertel  346:     } elsif ($target eq "edit") {
1.9       albertel  347: 	$result .=&Apache::edit::tag_start($target,$token);
                    348: 	my $answer=&Apache::lonxml::get_param('answer',$parstack,
                    349: 						$safeeval);
1.10      albertel  350: 	$result .='<nobr>'.
                    351: 	    &Apache::edit::text_arg('Answer:','answer',$token,40);
                    352: 	$result .=&edit_reaction_button($id,&Apache::edit::html_element_name('answer'),$answer).'</nobr>';
1.35      albertel  353: 	my $initial=&Apache::lonxml::get_param('initial',$parstack,$safeeval);
                    354: 	$result.='<nobr>'.
                    355: 	    &Apache::edit::text_arg('Initial Reation:','initial',$token,40);
                    356: 	$result .=&edit_reaction_button($id,&Apache::edit::html_element_name('initial'),$initial).'</nobr>';
1.10      albertel  357: 	
1.9       albertel  358: 	$result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1.10      albertel  359:     }  elsif ($target eq 'modified') {
                    360: 	my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.35      albertel  361: 						     $safeeval,'answer',
                    362: 						     'initial');
1.10      albertel  363: 	if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.4       albertel  364:     }
                    365:     return $result;
                    366: }
                    367: 
                    368: sub end_reactionresponse {
                    369:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                    370:     my $result;
1.10      albertel  371:     if ($target eq 'grade' && defined($ENV{'form.submitted'})) {
1.31      albertel  372: 	&Apache::response::setup_params($$tagstack[-1],$safeeval);
1.10      albertel  373: 	my $response = &Apache::response::getresponse();
                    374: 	if ( $response =~ /[^\s]/) {
                    375: 	    my $partid = $Apache::inputtags::part;
                    376: 	    my $id = $Apache::inputtags::response['-1'];
1.15      albertel  377: 	    my (@answers)=&Apache::lonxml::get_param_var('answer',$parstack,$safeeval);
1.10      albertel  378: 	    my %previous = &Apache::response::check_for_previous($response,$partid,$id);
                    379: 	    $Apache::lonhomework::results{"resource.$partid.$id.submission"}=$response;
                    380: 	    my $ad;
1.13      albertel  381: 	    foreach my $answer (@answers) {
                    382: 		&Apache::lonxml::debug("submitted a $response for $answer<br \>\n");
1.34      albertel  383: 		if (&chem_standard_order($response) eq 
                    384: 		    &chem_standard_order($answer)) {
1.13      albertel  385: 		    $ad='EXACT_ANS';
                    386: 		} else {
                    387: 		    $ad='INCORRECT';
                    388: 		}
1.10      albertel  389: 	    }
                    390: 	    &Apache::response::handle_previous(\%previous,$ad);
                    391: 	    $Apache::lonhomework::results{"resource.$partid.$id.awarddetail"}=$ad;
                    392: 	}
                    393:     }  elsif ($target eq "edit") {
1.4       albertel  394: 	$result.= &Apache::edit::tag_end($target,$token,'');
1.15      albertel  395:     } elsif ($target eq 'answer') {
                    396: 	my (@answers)=&Apache::lonxml::get_param_var('answer',$parstack,
                    397: 						     $safeeval);
                    398: 	$result.=&Apache::response::answer_header('reactionresponse');
                    399: 	foreach my $answer (@answers) {
                    400: 	    $result.=&Apache::response::answer_part('reactionresponse',
                    401: 						    $answer);
                    402: 	}
                    403: 	$result.=&Apache::response::answer_footer('reactionresponse');
1.4       albertel  404:     }
                    405:     &Apache::response::end_response;
1.3       albertel  406:     return $result;
1.1       albertel  407: }
                    408: 
                    409: 1;
                    410: __END__

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