--- loncom/xml/lonxml.pm	2006/03/10 23:49:35	1.401
+++ loncom/xml/lonxml.pm	2006/10/03 20:37:07	1.421
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # XML Parser Module 
 #
-# $Id: lonxml.pm,v 1.401 2006/03/10 23:49:35 albertel Exp $
+# $Id: lonxml.pm,v 1.421 2006/10/03 20:37:07 albertel Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -40,7 +40,7 @@
 
 package Apache::lonxml; 
 use vars 
-qw(@pwd @outputstack $redirection $import @extlinks $metamode $evaluate %insertlist @namespace $errorcount $warningcount @htmlareafields);
+qw(@pwd @outputstack $redirection $import @extlinks $metamode $evaluate %insertlist @namespace $errorcount $warningcount);
 use strict;
 use HTML::LCParser();
 use HTML::TreeBuilder();
@@ -123,9 +123,6 @@ $evaluate = 1;
 # stores the list of active tag namespaces
 @namespace=();
 
-# has the dynamic menu been updated to know about this resource
-$Apache::lonxml::registered=0;
-
 # a pointer the the Apache request object
 $Apache::lonxml::request='';
 
@@ -162,28 +159,6 @@ sub disable_LaTeX_substitutions {
     $Apache::lonxml::substitute_LaTeX_symbols = 0;
 }
 
-sub xmlbegin {
-    my ($style)=@_;
-    my $output='';
-    @htmlareafields=();
-    if ($env{'browser.mathml'}) {
-	$output='<?xml version="1.0"?>'
-            #.'<?xml-stylesheet type="text/css" href="/adm/MathML/mathml.css"?>'."\n"
-#            .'<!DOCTYPE html SYSTEM "/adm/MathML/mathml.dtd" '
-            
-#	    .'<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd" [<!ENTITY mathns "http://www.w3.org/1998/Math/MathML">] >'
-	    .'<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1 plus MathML 2.0 plus SVG 1.1//EN" "http://www.w3.org/2002/04/xhtml-math-svg/xhtml-math-svg.dtd">'
-            .'<html xmlns:math="http://www.w3.org/1998/Math/MathML" ' 
-	    .'xmlns="http://www.w3.org/1999/xhtml">';
-    } else {
-	$output='<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html>';
-    }
-    if ($style eq 'encode') {
-	$output=&HTML::Entities::encode($output,'<>&"');
-    }
-    return $output;
-}
-
 sub xmlend {
     my ($target,$parser)=@_;
     my $mode='xml';
@@ -204,9 +179,9 @@ sub xmlend {
 	$discussion.='<tex>\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}\end{document}</tex>';
 	&Apache::lonxml::newparser($parser,\$discussion,'');
 	return '';
-    } else {
-	return $discussion.&Apache::loncommon::endbodytag();
     }
+
+    return $discussion;
 }
 
 sub tokeninputfield {
@@ -304,18 +279,6 @@ sub printtokenheader {
     }
 }
 
-sub fontsettings {
-    my $headerstring='';
-    if (($env{'browser.os'} eq 'mac') && (!$env{'browser.mathml'})) { 
-	$headerstring.=
-	    '<meta Content-Type="text/html; charset=x-mac-roman" />';
-    } elsif (!$env{'browser.mathml'} && $env{'browser.unicode'}) {
-	$headerstring.=
-	    '<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />';
-    }
-    return $headerstring;
-}
-
 sub printalltags {
   my $temp;
   foreach $temp (sort keys %Apache::lonxml::alltags) {
@@ -403,13 +366,14 @@ sub latex_special_symbols {
 	return $string;
     }
     if ($where eq 'header') {
-	$string =~ s/(\\|_|\^)/ /g;
+	$string =~ s/\\/\$\\backslash\$/g; # \  -> $\backslash$ per LaTex line by line pg  10.
 	$string =~ s/(\$|%|\{|\})/\\$1/g;
-	$string =~ s/_/ /g;
 	$string=&Apache::lonprintout::character_chart($string);
 	# any & or # leftover should be safe to just escape
         $string=~s/([^\\])\&/$1\\\&/g;
         $string=~s/([^\\])\#/$1\\\#/g;
+	$string =~ s/_/\\_/g;              # _ -> \_
+	$string =~ s/\^/\\\^{}/g;          # ^ -> \^{} 
     } else {
 	$string=~s/\\/\\ensuremath{\\backslash}/g;
 	$string=~s/\\\%|\%/\\\%/g;
@@ -637,8 +601,6 @@ sub callsub {
 sub setup_globals {
   my ($request,$target)=@_;
   $Apache::lonxml::request=$request;
-  $Apache::lonxml::registered = 0;
-  @Apache::lonxml::htmlareafields=();
   $errorcount=0;
   $warningcount=0;
   $Apache::lonxml::default_homework_loaded=0;
@@ -810,8 +772,11 @@ sub init_safespace {
   $safehole->wrap(\&Math::Random::random_set_seed,$safeeval,'&random_set_seed');
   $safehole->wrap(\&Apache::lonxml::error,$safeeval,'&LONCAPA_INTERNAL_ERROR');
   $safehole->wrap(\&Apache::lonxml::debug,$safeeval,'&LONCAPA_INTERNAL_DEBUG');
+  $safehole->wrap(\&Apache::lonnet::logthis,$safeeval,'&LONCAPA_INTERNAL_LOGTHIS');
+  $safehole->wrap(\&Apache::inputtags::finalizeawards,$safeeval,'&LONCAPA_INTERNAL_FINALIZEAWARDS');
   $safehole->wrap(\&Apache::caparesponse::get_sigrange,$safeeval,'&LONCAPA_INTERNAL_get_sigrange');
-
+  use Data::Dumper;
+  $safehole->wrap(\&Data::Dumper::Dumper,$safeeval,'&Dumper');
 #need to inspect this class of ops
 # $safeeval->deny(":base_orig");
   $safeeval->permit("require");
@@ -1187,19 +1152,23 @@ sub newparser {
 }
 
 sub parstring {
-  my ($token) = @_;
-  my $temp='';
-  foreach (@{$token->[3]}) {
-    unless ($_=~/\W/) {
-      my $val=$token->[2]->{$_};
-      $val =~ s/([\%\@\\\"\'])/\\$1/g;
-      $val =~ s/(\$[^{a-zA-Z_])/\\$1/g;
-      $val =~ s/(\$)$/\\$1/;
-      #if ($val =~ m/^[\%\@]/) { $val="\\".$val; }
-      $temp .= "my \$$_=\"$val\";";
-    }
-  }
-  return $temp;
+    my ($token) = @_;
+    my (@vars,@values);
+    foreach my $attr (@{$token->[3]}) {
+	if ($attr!~/\W/) {
+	    my $val=$token->[2]->{$attr};
+	    $val =~ s/([\%\@\\\"\'])/\\$1/g;
+	    $val =~ s/(\$[^\{a-zA-Z_])/\\$1/g;
+	    $val =~ s/(\$)$/\\$1/;
+	    #if ($val =~ m/^[\%\@]/) { $val="\\".$val; }
+	    push(@vars,"\$$attr");
+	    push(@values,"\"$val\"");
+	}
+    }
+    my $var_init = 
+	(@vars) ? 'my ('.join(',',@vars).') = ('.join(',',@values).');'
+	        : '';
+    return $var_init;
 }
 
 sub extlink {
@@ -1327,8 +1296,7 @@ sub inserteditinfo {
       my $initialize='';
       if ($filetype eq 'html') {
 	  my $addbuttons=&Apache::lonhtmlcommon::htmlareaaddbuttons();
-	  $initialize=&Apache::lonhtmlcommon::htmlareaheaders().
-	      &Apache::lonhtmlcommon::spellheader();
+	  $initialize=&Apache::lonhtmlcommon::spellheader();
 	  if (!&Apache::lonhtmlcommon::htmlareablocked() &&
 	      &Apache::lonhtmlcommon::htmlareabrowser()) {
 	      $initialize.=(<<FULLPAGE);
@@ -1368,7 +1336,6 @@ $cleanbut
 <input type="submit" name="viewmode" accesskey="v" value="$lt{'vi'}" />
 BUTTONS
       $buttons.=&Apache::lonhtmlcommon::spelllink('xmledit','filecont');
-      $buttons.=&Apache::lonhtmlcommon::htmlareaselectactive('filecont');
       my $editfooter=(<<ENDFOOTER);
 $initialize
 <hr />
@@ -1458,17 +1425,13 @@ sub handler {
     my $result = '';
     my $filecontents=&Apache::lonnet::getfile($file);
     if ($filecontents eq -1) {
-	my $bodytag=&Apache::loncommon::bodytag('File Error');
+	my $start_page=&Apache::loncommon::start_page('File Error');
+	my $end_page=&Apache::loncommon::end_page();
 	my $fnf=&mt('File not found');
 	$result=(<<ENDNOTFOUND);
-<html>
-<head>
-<title>$fnf</title>
-</head>
-$bodytag
+$start_page
 <b>$fnf: $file</b>
-</body>
-</html>
+$end_page
 ENDNOTFOUND
         $filecontents='';
 	if ($env{'request.state'} ne 'published') {
@@ -1506,18 +1469,20 @@ ENDNOTFOUND
 	if ($env{'form.editmode'} && (!($env{'form.viewmode'}))) {
 	    my $displayfile=$request->uri;
 	    $displayfile=~s/^\/[^\/]*//;
-	    my $bodytag='<body bgcolor="#FFFFFF">';
-	    if ($env{'environment.remote'} eq 'off') {
-		$bodytag=&Apache::loncommon::bodytag();
+	    my %options = ();
+	    if ($env{'environment.remote'} ne 'off') {
+		$options{'bgcolor'}   = '#FFFFFF';
 	    }
-	    $result='<html>'.$bodytag.
+	    my $start_page = &Apache::loncommon::start_page(undef,undef,
+							    \%options);
+	    $result=$start_page.
 		&Apache::lonxml::message_location().'<h3>'.
 		$displayfile.
-		'</h3></body></html>';
+		'</h3>'.&Apache::loncommon::end_page();
 	    $result=&inserteditinfo($result,$filecontents,$filetype);
 	}
     }
-    if ($filetype eq 'html') { writeallows($request->uri); }
+    if ($filetype eq 'html') { &writeallows($request->uri); }
 	
     
     &Apache::lonxml::add_messages(\$result);
@@ -1580,9 +1545,11 @@ sub error {
 	if ( !$symb ) {
 	    #public or browsers
 	    $errormsg=&mt("An error occured while processing this resource. The author has been notified.");
-	} 
+	}
+	my $host=$Apache::lonnet::perlvar{'lonHostID'};
+	my $msg = join('<br />',(@_,"The error occurred on host <tt>$host</tt>"));
 	#notify author
-	&Apache::lonmsg::author_res_msg($env{'request.filename'},join('<br />',@_));
+	&Apache::lonmsg::author_res_msg($env{'request.filename'},$msg);
 	#notify course
 	if ( $symb && $env{'request.course.id'} ) {
 	    my $cnum=$env{'course.'.$env{'request.course.id'}.'.num'};
@@ -1600,7 +1567,7 @@ sub error {
 		my $now=time;
 		if ($now-$lastnotified{$key}>86400) {
 		    &Apache::lonmsg::user_normal_msg($user,$domain,
-						 "Error [$declutter]",join('<br />',@_));
+						 "Error [$declutter]",$msg);
 		    &Apache::lonnet::put('nohist_xmlerrornotifications',
 					 {$key => $now},
 					 $cdom,$cnum);		
@@ -1663,14 +1630,14 @@ sub get_param {
     }
     if ( ! $args ) { return undef; }
     if ( $case_insensitive ) {
-	if ($args =~ s/(my \$)(\Q$param\E)(=\")/$1.lc($2).$3/ei) {
+	if ($args =~ s/(my (?:.*))(\$\Q$param\E[,\)])/$1.lc($2)/ei) {
 	    return &Apache::run::run("{$args;".'return $'.$param.'}',
                                      $safeeval); #'
 	} else {
 	    return undef;
 	}
     } else {
-	if ( $args =~ /my \$\Q$param\E=\"/ ) {
+	if ( $args =~ /my .*\$\Q$param\E[,\)]/ ) {
 	    return &Apache::run::run("{$args;".'return $'.$param.'}',
                                      $safeeval); #'
 	} else {
@@ -1689,10 +1656,10 @@ sub get_param_var {
   }
   &Apache::lonxml::debug("Args are $args param is $param");
   if ($case_insensitive) {
-      if (! ($args=~s/(my \$)(\Q$param\E)(=\")/$1.lc($2).$3/ei)) {
+      if (! ($args=~s/(my (?:.*))(\$\Q$param\E[,\)])/$1.lc($2)/ei)) {
 	  return undef;
       }
-  } elsif ( $args !~ /my \$\Q$param\E=\"/ ) { return undef; }
+  } elsif ( $args !~ /my .*\$\Q$param\E[,\)]/ ) { return undef; }
   my $value=&Apache::run::run("{$args;".'return $'.$param.'}',$safeeval); #'
   &Apache::lonxml::debug("first run is $value");
   if ($value =~ /^[\$\@\%][a-zA-Z_]\w*$/) {