--- loncom/xml/lonxml.pm	2018/09/14 21:41:13	1.531.2.24
+++ loncom/xml/lonxml.pm	2012/12/06 13:54:47	1.536
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # XML Parser Module 
 #
-# $Id: lonxml.pm,v 1.531.2.24 2018/09/14 21:41:13 raeburn Exp $
+# $Id: lonxml.pm,v 1.536 2012/12/06 13:54:47 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -69,8 +69,6 @@ use Safe();
 use Safe::Hole();
 use Math::Cephes();
 use Math::Random();
-use Math::Calculus::Expression();
-use Number::FormatEng();
 use Opcode();
 use POSIX qw(strftime);
 use Time::HiRes qw( gettimeofday tv_interval );
@@ -146,7 +144,7 @@ $metamode = 0;
 # turns on and of run::evaluate actually derefencing var refs
 $evaluate = 1;
 
-# data structure for edit mode, determines what tags can go into what other tags
+# data structure for eidt mode, determines what tags can go into what other tags
 %insertlist=();
 
 # stores the list of active tag namespaces
@@ -230,106 +228,12 @@ sub xmlend {
     return $discussion;
 }
 
-sub tokeninputfield {
-    my $defhost=$Apache::lonnet::perlvar{'lonHostID'};
-    $defhost=~tr/a-z/A-Z/;
-    return (<<ENDINPUTFIELD)
-<script type="text/javascript">
-    function updatetoken() {
-        var comp=new Array;
-        var barcode=unescape(document.tokeninput.barcode.value);
-        comp=barcode.split('*');
-        if (typeof(comp[0])!="undefined") {
-            document.tokeninput.codeone.value=comp[0];
-        }
-        if (typeof(comp[1])!="undefined") {
-            document.tokeninput.codetwo.value=comp[1];
-        }
-        if (typeof(comp[2])!="undefined") {
-            comp[2]=comp[2].toUpperCase();
-            document.tokeninput.codethree.value=comp[2];
-        }
-        document.tokeninput.barcode.value='';
-    }
-</script>
-<form method="post" name="tokeninput" action="">
-<table border="2" bgcolor="#FFFFBB">
-<tr><th>DocID Checkin</th></tr>
-<tr><td>
-<table>
-<tr>
-<td>Scan in Barcode</td>
-<td><input type="text" size="22" name="barcode"
-onchange="updatetoken()"/></td>
-</tr>
-<tr><td><i>or</i> Type in DocID</td>
-<td>
-<input type="text" size="5" name="codeone" />
-<b><font size="+2">*</font></b>
-<input type="text" size="5" name="codetwo" />
-<b><font size="+2">*</font></b>
-<input type="text" size="10" name="codethree" value="$defhost"
-onchange="this.value=this.value.toUpperCase()" />
-</td></tr>
-</table>
-</td></tr>
-<tr><td><input type="submit" value="Check in DocID" /></td></tr>
-</table>
-</form>
-ENDINPUTFIELD
-}
-
-sub maketoken {
-    my ($symb,$tuname,$tudom,$tcrsid)=@_;
-    unless ($symb) {
-        $symb=&Apache::lonnet::symbread();
-    }
-    unless ($tuname) {
-        $tuname=$env{'user.name'};
-        $tudom=$env{'user.domain'};
-        $tcrsid=$env{'request.course.id'};
-    }
-    return &Apache::lonnet::checkout($symb,$tuname,$tudom,$tcrsid);
-}
-
-sub printtokenheader {
-    my ($target,$token,$tsymb,$tcrsid,$tudom,$tuname)=@_;
-    unless ($token) { return ''; }
-
-    my ($symb,$courseid,$domain,$name) = &Apache::lonnet::whichuser();
-    unless ($tsymb) {
-        $tsymb=$symb;
-    }
-    unless ($tuname) {
-        $tuname=$name;
-        $tudom=$domain;
-        $tcrsid=$courseid;
-    }
-
-    my $plainname=&Apache::loncommon::plainname($tuname,$tudom);
-
-    if ($target eq 'web') {
-        my %idhash=&Apache::lonnet::idrget($tudom,($tuname));
-        return
- '<img align="right" src="/cgi-bin/barcode.png?encode='.$token.'" />'.
-               &mt('Checked out for').' '.$plainname.
-               '<br />'.&mt('User').': '.$tuname.' at '.$tudom.
-               '<br />'.&mt('ID').': '.$idhash{$tuname}.
-               '<br />'.&mt('CourseID').': '.$tcrsid.
-               '<br />'.&mt('Course').': '.$env{'course.'.$tcrsid.'.description'}.
-               '<br />'.&mt('DocID').': '.$token.
-               '<br />'.&mt('Time').': '.&Apache::lonlocal::locallocaltime().'<hr />';
-    } else {
-        return $token;
-    }
-}
-
 sub printalltags {
-    my $temp;
-    foreach $temp (sort keys %Apache::lonxml::alltags) {
-        &Apache::lonxml::debug("$temp -- ".
-                               join(',',@{ $Apache::lonxml::alltags{$temp} }));
-    }
+  my $temp;
+  foreach $temp (sort keys %Apache::lonxml::alltags) {
+    &Apache::lonxml::debug("$temp -- ".
+		  join(',',@{ $Apache::lonxml::alltags{$temp} }));
+  }
 }
 
 sub xmlparse {
@@ -402,12 +306,8 @@ sub xmlparse {
  &clean_safespace($safeeval);
 
  if (@script_var_displays) {
-     if ($finaloutput =~ m{</body>\s*</html>\s*$}s) {
-         my $scriptoutput = join('',@script_var_displays);
-         $finaloutput=~s{(</body>\s*</html>)\s*$}{$scriptoutput$1}s;
-     } else {
-         $finaloutput .= join('',@script_var_displays);
-     }
+     my $scriptoutput = join('',@script_var_displays);
+     $finaloutput=~s{(</body>\s*</html>)\s*$}{$scriptoutput$1}s;
      undef(@script_var_displays);
  }
  &init_state();
@@ -442,9 +342,9 @@ sub latex_special_symbols {
     } else {
 	$string=~s/\\/\\ensuremath{\\backslash}/g;
 	$string=~s/\\\%|\%/\\\%/g;
-	$string=~s/\\\{|\{/\\{/g;
+	$string=~s/\\{|{/\\{/g;
 	$string=~s/\\}|}/\\}/g;
-	$string=~s/\\ensuremath\\\{\\backslash\\}/\\ensuremath{\\backslash}/g;
+	$string=~s/\\ensuremath\\{\\backslash\\}/\\ensuremath{\\backslash}/g;
 	$string=~s/\\\$|\$/\\\$/g;
 	$string=~s/\\\_|\_/\\\_/g;
         $string=~s/([^\\]|^)(\~|\^)/$1\\$2\\strut /g;
@@ -465,8 +365,6 @@ sub inner_xmlparse {
   my $result;
   my $token;
   my $dontpop=0;
-  my $lastdontpop;
-  my $lastendtag;
   my $startredirection = $Apache::lonxml::redirection;
   while ( $#$pars > -1 ) {
     while ($token = $$pars['-1']->get_token) {
@@ -562,29 +460,17 @@ sub inner_xmlparse {
       }
       $result = '';
 
-      if ($token->[0] eq 'E') {
-          if ($dontpop) {
-              $lastdontpop = $token;
-          } else {
-              $lastendtag = $token->[1];
-              &end_tag($stack,$parstack,$token);
-          }
+      if ($token->[0] eq 'E' && !$dontpop) {
+	&end_tag($stack,$parstack,$token);
       }
       $dontpop=0;
-    }
+    }	
     if ($#$pars > -1) {
 	pop @$pars;
 	pop @Apache::lonxml::pwd;
     }
   }
 
-  if (($#$stack == 0) && ($stack->[0] eq 'physnet') && ($target eq 'web') &&
-      ($lastendtag eq 'LONCAPA_INTERNAL_TURN_STYLE_ON')) {
-       if ((ref($lastdontpop) eq 'ARRAY') && ($lastdontpop->[1] eq 'physnet')) {
-           &end_tag($stack,$parstack,$lastdontpop);
-       }
-   }
-
   # if ($target eq 'meta') {
   #   $finaloutput.=&endredirection;
   # }
@@ -765,7 +651,7 @@ sub init_safespace {
   my ($target,$safeeval,$safehole,$safeinit) = @_;
   $safeeval->reval('use LaTeX::Table;');
   $safeeval->deny_only(':dangerous');
-  $safeeval->reval('use LONCAPA::LCMathComplex;');
+  $safeeval->reval('use Math::Complex;');
   $safeeval->permit_only(":default");
   $safeeval->permit("entereval");
   $safeeval->permit(":base_math");
@@ -916,9 +802,6 @@ sub init_safespace {
   $safehole->wrap(\&Apache::functionplotresponse::fpr_objectcoords,$safeeval,'&fpr_objectcoords');
   $safehole->wrap(\&Apache::functionplotresponse::fpr_vectorlength,$safeeval,'&fpr_vectorlength');
   $safehole->wrap(\&Apache::functionplotresponse::fpr_vectorangle,$safeeval,'&fpr_vectorangle');
-  $safehole->wrap(\&Math::Calculus::Expression::math_calculus_expression,$safeeval,'&math_calculus_expression');
-  $safehole->wrap(\&Number::FormatEng::format_eng,$safeeval,'&number_format_eng');
-  $safehole->wrap(\&Number::FormatEng::format_pref,$safeeval,'&number_format_pref');
 
 #  use Data::Dumper;
 #  $safehole->wrap(\&Data::Dumper::Dumper,$safeeval,'&LONCAPA_INTERNAL_Dumper');
@@ -927,10 +810,7 @@ sub init_safespace {
   $safeeval->permit("require");
   $safeinit .= ';$external::target="'.$target.'";';
   &Apache::run::run($safeinit,$safeeval);
-  my $rawrndseed = &initialize_rndseed($safeeval);
-  if ($target eq 'grade') {
-      $Apache::lonhomework::rawrndseed = $rawrndseed;
-  }
+  &initialize_rndseed($safeeval);
 }
 
 sub clean_safespace {
@@ -969,7 +849,6 @@ sub initialize_rndseed {
     my $safeinit = '$external::randomseed="'.$rndseed.'";';
     &Apache::lonxml::debug("Setting rndseed to $rndseed");
     &Apache::run::run($safeinit,$safeeval);
-    return $rndseed;
 }
 
 sub default_homework_load {
@@ -1091,7 +970,7 @@ sub decreasedepth {
 sub get_id {
     my ($parstack,$safeeval)=@_;
     my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);
-    if ($env{'request.state'} eq 'construct' && $id =~ /([._]|[^\w\s\-])/) { 
+    if ($env{'request.state'} eq 'construct' && $id =~ /([._]|[^\w\d\s[:punct:]])/) {
 	&error(&mt('ID [_1] contains invalid characters. IDs are only allowed to contain letters, numbers, spaces and -','"<tt>'.$id.'</tt>"'));
     }
     if ($id =~ /^\s*$/) { $id = $Apache::lonxml::curdepth; }
@@ -1444,7 +1323,7 @@ sub extlink {
     if (!$exact) {
 	$res=&Apache::lonnet::hreflocation($Apache::lonxml::pwd[-1],$res);
     }
-    push(@Apache::lonxml::extlinks,$res);
+    push(@Apache::lonxml::extlinks,$res)	 
 }
 
 sub writeallows {
@@ -1480,9 +1359,7 @@ sub do_registered_ssi {
 
 sub add_script_result {
     my ($display) = @_;
-    if ($display ne '') {
-        push(@script_var_displays, $display);
-    }
+    push(@script_var_displays, $display);
 }
 
 #
@@ -1574,15 +1451,13 @@ SIMPLECONTENT
 
 sub verify_html {
     my ($filecontents)=@_;
-    my ($is_html,$is_xml,$is_physnet);
+    my ($is_html,$is_xml);
     if ($filecontents =~/(?:\<|\&lt\;)\?xml[^\<]*\?(?:\>|\&gt\;)/is) {
         $is_xml = 1;
     } elsif ($filecontents =~/(?:\<|\&lt\;)html(?:\s+[^\<]+|\s*)(?:\>|\&gt\;)/is) {
         $is_html = 1;
-    } elsif ($filecontents =~/(?:\<|\&lt\;)physnet[^\<]*(?:\>|\&gt\;)/is) {
-        $is_physnet = 1;
     }
-    unless ($is_xml || $is_html || $is_physnet) {
+    unless ($is_xml || $is_html) {
         return &mt('File does not have [_1] or [_2] starting tag','&lt;html&gt;','&lt;?xml ?&gt;');
     }
     if ($is_html) {
@@ -1628,65 +1503,42 @@ sub renderingoptions {
                (''        => '',
                 'tth'     => 'tth (TeX to HTML)',
                 'MathJax' => 'MathJax',
+  		'jsMath'  => 'jsMath',
                 'mimetex' => 'mimetex (Convert to Images)')}).
      '</span>';
     return $output;
 }
 
 sub inserteditinfo {
-      my ($filecontents,$filetype,$filename,$symb,$itemtitle,$folderpath,$uri,$action) = @_;
+      my ($filecontents,$filetype,$filename,$symb,$itemtitle,$folderpath,$uri) = @_;
       $filecontents = &HTML::Entities::encode($filecontents,'<>&"');
       my $xml_help = '';
       my $initialize='';
       my $textarea_id = 'filecont';
-      my ($dragmath_button,$deps_button,$context,$cnum,$cdom,$add_to_onload,
-          $add_to_onresize,$init_dragmath);
+      my ($dragmath_button,$deps_button);
+      my ($add_to_onload, $add_to_onresize);
       $initialize=&Apache::lonhtmlcommon::spellheader();
-      if ($filetype eq 'html') {
-          if ($env{'request.course.id'}) {
-              $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
-              $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
-              if ($uri =~ m{^\Q/uploaded/$cdom/$cnum/portfolio/syllabus/\E}) {
-                  $context = 'syllabus';
-              }
-          }
-          if (&Apache::lonhtmlcommon::htmlareabrowser()) {
-	      my $lang = &Apache::lonhtmlcommon::htmlarea_lang();
-              my %textarea_args = (
-                                    fullpage => 'true',
-                                    dragmath => 'math',
-                                  );
-              $initialize .= &Apache::lonhtmlcommon::htmlareaselectactive(\%textarea_args);
-              if ($context eq 'syllabus') {
-                  $init_dragmath = "editmath_visibility('filecont','none')";
-              }
-          }
+      if (($filetype eq 'html') && (&Apache::lonhtmlcommon::htmlareabrowser())) {
+	  my $lang = &Apache::lonhtmlcommon::htmlarea_lang();
+          my %textarea_args = (
+                                fullpage => 'true',
+                                dragmath => 'math',
+                              );
+          $initialize .= &Apache::lonhtmlcommon::htmlareaselectactive(\%textarea_args); 
       }
       $initialize .= (<<FULLPAGE);
 <script type="text/javascript">
 // <![CDATA[
     function initDocument() {
 	resize_textarea('$textarea_id','LC_aftertextarea');
-        $init_dragmath
     }
 // ]]>
 </script>
 FULLPAGE
-      my $textareaclass;
       if ($filetype eq 'html') {
-          if ($context eq 'syllabus') {
-              $deps_button = &Apache::lonhtmlcommon::dependencies_button()."\n";
-              $initialize .=
-                  &Apache::lonhtmlcommon::dependencycheck_js(undef,&mt('Syllabus'),
-                                                             $uri,undef,
-                                                             "/public/$cdom/$cnum/syllabus").
-                  "\n";
-              if (&Apache::lonhtmlcommon::htmlareabrowser()) {
-                  $textareaclass = 'class="LC_richDefaultOn"';
-              }
-          } elsif ($symb || $folderpath) {
+          if ($symb || $folderpath) {
               $deps_button = &Apache::lonhtmlcommon::dependencies_button()."\n";
-              $initialize .=
+              $initialize .= 
                   &Apache::lonhtmlcommon::dependencycheck_js($symb,$itemtitle,
                                                              undef,$folderpath,$uri)."\n";
           }
@@ -1697,14 +1549,11 @@ FULLPAGE
       $add_to_onresize = "resize_textarea('$textarea_id','LC_aftertextarea');";
 
       if ($filetype eq 'html') {
-          my $not_author;
-          if ($uri =~ m{^/uploaded/}) {
-              $not_author = 1;
-          }
-	  $xml_help=&Apache::loncommon::helpLatexCheatsheet(undef,undef,$not_author);
+	  $xml_help=&Apache::loncommon::helpLatexCheatsheet();
       }
 
       my $titledisplay=&display_title();
+      my $textareaclass;
       my %lt=&Apache::lonlocal::texthash('st' => 'Save and Edit',
 					 'vi' => 'Save and View',
 					 'dv' => 'Discard Edits and View',
@@ -1720,19 +1569,13 @@ FULLPAGE
               $htmlerror='<span class="LC_error">'.$htmlerror.'</span>';
           }
           if (&Apache::lonhtmlcommon::htmlareabrowser()) {
-              unless ($textareaclass) {
-                  $textareaclass = 'class="LC_richDefaultOff"';
-              }
+              $textareaclass = 'class="LC_richDefaultOff"';
           }
       }
-      my $undo;
-      unless ($uri =~ m{^/uploaded/}) {
-          $undo = '<input type="submit" name="Undo" accesskey="u" value="'.$lt{'un'}.'" />'."\n";
-      }
       my $editfooter=(<<ENDFOOTER);
 $initialize
 <a name="editsection" />
-<form $form_events method="post" name="xmledit" action="$action">
+<form $form_events method="post" name="xmledit">
   <div class="LC_edit_problem_editxml_header">
     <table class="LC_edit_problem_header_title"><tr><td>
         $filename
@@ -1740,11 +1583,12 @@ $initialize
         $xml_help
       </td></tr>
     </table>
-    <div>
+    <div class="LC_edit_problem_discards">
       <input type="submit" name="discardview" accesskey="d" value="$lt{'dv'}" />
-      $undo $htmlerror $deps_button $dragmath_button
+      <input type="submit" name="Undo" accesskey="u" value="$lt{'un'}" />
+      $htmlerror $deps_button $dragmath_button
     </div>
-    <div style="float:right">
+    <div class="LC_edit_problem_saves">
       <input type="submit" name="savethisfile" accesskey="s" value="$lt{'st'}" />
       <input type="submit" name="viewmode" accesskey="v" value="$lt{'vi'}" />
     </div>
@@ -1755,6 +1599,7 @@ $initialize
     $titledisplay
   </div>
 </form>
+</body>
 ENDFOOTER
       return ($editfooter,$add_to_onload,$add_to_onresize);;
 }
@@ -1822,26 +1667,10 @@ sub handler {
     my ($filetype,$breadcrumbtext);
     if ($file =~ /\.(sty|css|js|txt|tex)$/) {
 	$filetype=$1;
+        $env{'request.uri'}=$request->uri;
     } else {
 	$filetype='html';
-    }
-    unless ($env{'request.uri'}) {
         $env{'request.uri'}=$request->uri;
-        &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
-                                                ['todocs']);
-    }
-    my ($cdom,$cnum);
-    if ($env{'request.course.id'}) {
-        $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
-        $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
-        if ($filetype eq 'html') {
-            if ($request->uri =~ m{^\Q/uploaded/$cdom/$cnum/portfolio/syllabus/\E.+$}) {
-                if (&Apache::lonnet::allowed('mdc',$env{'request.course.id'})) {
-                    &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
-                                                            ['editmode']);
-                }
-            }
-        }
     }
     if ($filetype eq 'sty') {
         $breadcrumbtext = 'Style File Editor';
@@ -1869,7 +1698,6 @@ sub handler {
             }
 	}
     }
-    my $inhibit_menu;
     my %mystyle;
     my $result = '';
     my $filecontents=&Apache::lonnet::getfile($file);
@@ -1927,15 +1755,8 @@ ENDNOTFOUND
 	    &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
 						    ['rawmode']);
 	    if ($env{'form.rawmode'}) { $result = $filecontents; }
-            if (($env{'request.state'} eq 'construct') &&
-                (($filetype eq 'css') || ($filetype eq 'js')) && ($ENV{'HTTP_REFERER'})) {
-                if ($ENV{'HTTP_REFERER'} =~ m{^https?\://[^\/]+/priv/$LONCAPA::match_domain/$LONCAPA::match_username/[^\?]+\.(x?html?|swf)(|\?)[^\?]*$}) {
-                    $inhibit_menu = 1;
-                }
-            }
             if (($filetype ne 'html') && 
-                (!$env{'form.return_only_error_and_warning_counts'}) &&
-                (!$inhibit_menu)) {
+                (!$env{'form.return_only_error_and_warning_counts'})) {
                 my $nochgview = 1;
                 my $controls = '';
                     if ($env{'request.state'} eq 'construct') {
@@ -1953,7 +1774,7 @@ ENDNOTFOUND
                 my $brcrum;
                 if ($env{'request.state'} eq 'construct') {
                     $brcrum = [{'href' => &Apache::loncommon::authorspace($request->uri),
-                                'text' => 'Authoring Space'},
+                                'text' => 'Construction Space'},
                                {'href' => '',
                                 'text' => $breadcrumbtext}];
                 } else {
@@ -1973,40 +1794,30 @@ ENDNOTFOUND
 #
 # Edit action? Insert editing commands
 #
-    unless (($env{'request.state'} eq 'published') || ($inhibit_menu)) {
+    unless ($env{'request.state'} eq 'published') {
 	if ($env{'form.editmode'} && (!($env{'form.viewmode'})) && (!($env{'form.discardview'})))
 	{
-            my ($displayfile,$url,$symb,$itemtitle,$action);
+            my ($displayfile,$url,$symb,$itemtitle);
 	    $displayfile=$request->uri;
             if ($request->uri =~ m{^/uploaded/}) {
                 if ($env{'request.course.id'}) {
-                    if ($request->uri =~ m{^\Q/uploaded/$cdom/$cnum/supplemental/\E}) {
+                    my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
+                    my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
+                    if ($request->uri =~ m{^\Q/uploaded/$cdom/$cnum/\Esupplemental/}) {
                         &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
                                                                 ['folderpath','title']);
-                    } elsif ($request->uri =~ m{^\Q/uploaded/$cdom/$cnum/portfolio/syllabus/\E(.+)$}) {
-                        my $filename = $1;
-                        if ($1 eq 'loncapa.html') {
-                            $displayfile = &mt('Syllabus (minimal template)');
-                            $action = $request->uri.'?forceedit=1';
-                        } else {
-                            $displayfile = &mt('Syllabus file: [_1]',$1);
-                        }
-                        $itemtitle = &mt('Syllabus');
                     }
                 }
-                unless ($itemtitle) {
-                    ($symb,$itemtitle,$displayfile) = 
-                        &get_courseupload_hierarchy($request->uri,
-                                                    $env{'form.folderpath'},
-                                                    $env{'form.title'});
-                }
+                ($symb,$itemtitle,$displayfile) = 
+                    &get_courseupload_hierarchy($request->uri,
+                                                $env{'form.folderpath'},$env{'form.title'});
             } else {
 	        $displayfile=~s/^\/[^\/]*//;
             }
 
 	    my ($edit_info, $add_to_onload, $add_to_onresize)=
 		&inserteditinfo($filecontents,$filetype,$displayfile,$symb,
-                                $itemtitle,$env{'form.folderpath'},$request->uri,$action);
+                                $itemtitle,$env{'form.folderpath'},$request->uri);
 
 	    my %options = 
 		('add_entries' =>
@@ -2016,7 +1827,7 @@ ENDNOTFOUND
             if ($env{'request.state'} eq 'construct') {
                 $options{'bread_crumbs'} = [{
                             'href' => &Apache::loncommon::authorspace($request->uri),
-                            'text' => 'Authoring Space'},
+                            'text' => 'Construction Space'},
                            {'href' => '',
                             'text' => $breadcrumbtext}];
                 $header = &Apache::loncommon::head_subbox(
@@ -2051,7 +1862,7 @@ sub display_title {
 	    $title = substr($title, rindex($title, '/') + 1);
 	}
         $result = "<script type='text/javascript'>top.document.title = '$title - LON-CAPA "
-                  .&mt('Authoring Space')."';</script>";
+                  .&mt('Construction Space')."';</script>";
     }
     return $result;
 }
@@ -2066,7 +1877,6 @@ sub get_courseupload_hierarchy {
             while (@folders) {
                 my $folder=shift(@folders);
                 my $foldername=shift(@folders);
-                $foldername =~ s/\:(\d*)\:(\w*)\:(\w*):(\d*)\:?(\d*)$//;
                 push(@pathitems,&unescape($foldername));
             }
             if ($title) {
@@ -2172,7 +1982,7 @@ sub error {
 	    my $declutter=&Apache::lonnet::declutter($env{'request.filename'});
             my $baseurl = &Apache::lonnet::clutter($declutter);
 	    my @userlist;
-	    foreach (keys(%users)) {
+	    foreach (keys %users) {
 		my ($user,$domain) = split(/:/, $_);
 		push(@userlist,"$user:$domain");
 		my $key=$declutter.'_'.$user.'_'.$domain;
@@ -2243,6 +2053,7 @@ sub add_messages {
 
 sub get_param {
     my ($param,$parstack,$safeeval,$context,$case_insensitive, $noelide) = @_;
+
     if ( ! $context ) { $context = -1; }
     my $args ='';
     if ( $#$parstack > (-2-$context) ) { $args=$$parstack[$context]; }
@@ -2250,13 +2061,16 @@ sub get_param {
 	$args=$Apache::lonxml::style_values.$args;
     }
 
+
     if ($noelide) {
-        $args =~ s/'\$/'\\\$/g;
+#	$args =~ s/\\'/'/g;
+	$args =~ s/'\$/'\\\$/g;
     }
 
     if ( ! $args ) { return undef; }
     if ( $case_insensitive ) {
 	if ($args =~ s/(my (?:.*))(\$\Q$param\E[,\)])/$1.lc($2)/ei) {
+
 	    return &Apache::run::run("{$args;".'return $'.$param.'}',
                                      $safeeval); #'
 	} else {
@@ -2264,6 +2078,7 @@ sub get_param {
 	}
     } else {
 	if ( $args =~ /my .*\$\Q$param\E[,\)]/ ) {
+	    
 	    return &Apache::run::run("{$args;".'return $'.$param.'}',
                                      $safeeval); #'
 	} else {
@@ -2367,7 +2182,7 @@ sub register_insert {
 
 sub dump_insertlist {
     my ($ext) = @_;
-    open(XML,">","/tmp/insertlist.xml.$ext");
+    open(XML,">/tmp/insertlist.xml.$ext");
     print XML ("<insertlist>");
     my $i=0;
 
@@ -2425,7 +2240,7 @@ sub description {
 sub helpinfo {
     my ($token)=@_;
     my $tag = &get_tag($token);
-    return ($insertlist{$tag.'.helpfile'}, &mt($insertlist{$tag.'.helpdesc'}));
+    return ($insertlist{$tag.'.helpfile'}, $insertlist{$tag.'.helpdesc'});
 }
 
 sub get_tag {