[BACK]Return to londefdef.pm CVS log [TXT] [DIR] Up to [LON-CAPA] / loncom / xml

Diff for /loncom/xml/londefdef.pm between versions 1.302.2.4 and 1.392

version 1.302.2.4, 2006/03/29 22:54:10 version 1.392, 2008/09/11 14:47:24
Line 46  use Apache::File(); Line 46  use Apache::File();
 use Image::Magick;  use Image::Magick;
 use Apache::lonmenu();  use Apache::lonmenu();
 use Apache::lonmeta();  use Apache::lonmeta();
   use Apache::lonlocal;
 use Apache::Constants qw(:common);  use Apache::Constants qw(:common);
 use File::Basename;  use File::Basename;
   use LONCAPA();
 # use Data::Dumper;  # use Data::Dumper;
   
 BEGIN {  BEGIN {
Line 68  BEGIN { Line 70  BEGIN {
 #    for ($row =0; $row <= $lastrow; $row++ ) {  #    for ($row =0; $row <= $lastrow; $row++ ) {
 # my $text = Dumper($Apache::londefdef::table[$row]);  # my $text = Dumper($Apache::londefdef::table[$row]);
 # &Apache::lonnet::logthis("table [ $row ]".$text);  # &Apache::lonnet::logthis("table [ $row ]".$text);
 #  
 #    }  #    }
 #}  #}
 sub initialize_londefdef {  sub initialize_londefdef {
Line 80  sub initialize_londefdef { Line 81  sub initialize_londefdef {
     @Apache::londefdef::DT=(0);      @Apache::londefdef::DT=(0);
     @Apache::londefdef::seenDT=(0);      @Apache::londefdef::seenDT=(0);
     $Apache::londefdef::list_index=0;      $Apache::londefdef::list_index=0;
       undef($Apache::londefdef::head);
       undef($Apache::londefdef::title);
 }  }
   
 #======================= TAG SUBROUTINES =====================  #======================= TAG SUBROUTINES =====================
Line 104  sub start_m { Line 107  sub start_m {
  my $eval=&Apache::lonxml::get_param('eval',$parstack,$safeeval);   my $eval=&Apache::lonxml::get_param('eval',$parstack,$safeeval);
  if ($eval eq 'on') {   if ($eval eq 'on') {
     $inside=&Apache::run::evaluate($inside,$safeeval,$$parstack[-1]);      $inside=&Apache::run::evaluate($inside,$safeeval,$$parstack[-1]);
     #&Apache::lonxml::debug("M is evaulated to:$inside:");      #&Apache::lonxml::debug("M is evaluated to:$inside:");
  }   }
    my $tex = $inside;
  my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);   my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
  $currentstring = &Apache::lontexconvert::converted(\$inside,$display);   $currentstring = &Apache::lontexconvert::converted(\$inside,$display);
  if ($Apache::lontexconvert::errorstring) {   if ($Apache::lontexconvert::errorstring) {
     &Apache::lonxml::warning("tth error: ".      my $errormsg='<pre>'.&HTML::Entities::encode($Apache::lontexconvert::errorstring,'<>&"').'</pre> occurred while attempting to convert this TeX: <pre>';
      $Apache::lontexconvert::errorstring);      $tex = &HTML::Entities::encode($tex,'<>&"');
       my ($linenumber) =
    ($Apache::lontexconvert::errorstring =~ /Line (\d+)/);
       if (defined($linenumber)) {
    my @tex=split("\n",$tex);
    $tex[$linenumber]='<b><font color="red">'.
       $tex[$linenumber].'</font></b>';
    $tex=join("\n",@tex);
       }
       &Apache::lonxml::warning($errormsg.$tex.'</pre>');
     $Apache::lontexconvert::errorstring='';      $Apache::lontexconvert::errorstring='';
  }   }
  #&Apache::lonxml::debug("M is ends with:$currentstring:");   #&Apache::lonxml::debug("M is ends with:$currentstring:");
  $Apache::lonxml::post_evaluate=0;   $Apache::lonxml::post_evaluate=0;
     } elsif ($target eq 'tex') {      } elsif ($target eq 'tex') {
   
  $currentstring = $inside;   $currentstring = $inside;
  my $eval=&Apache::lonxml::get_param('eval',$parstack,$safeeval);   my $eval=&Apache::lonxml::get_param('eval',$parstack,$safeeval);
  if ($eval eq 'on') {   if ($eval eq 'on') {
Line 123  sub start_m { Line 137  sub start_m {
  }   }
  if ($currentstring=~/^(\s*\\\\\s*)*$/) {$currentstring = ' \vskip 0 mm ';}   if ($currentstring=~/^(\s*\\\\\s*)*$/) {$currentstring = ' \vskip 0 mm ';}
  # detect simple math mode entry exits, and convert them   # detect simple math mode entry exits, and convert them
         # to use \ensuremath          # to use \ensuremath ... unless there's a \verb inside.
  if ($currentstring=~/^\s*\$[^\$].*[^\$]\$\s*$/) {   if (! ($currentstring=~/\\verb/)) {
     $currentstring=~s/^(\s*)\$/$1/;      if ($currentstring=~/^\s*\$[^\$].*[^\$]\$\s*$/) {
     $currentstring=~s/\$(\s*)$/$1/;   $currentstring=~s/^(\s*)\$/$1/;
     $currentstring='\ensuremath{'.$currentstring.'}';   $currentstring=~s/\$(\s*)$/$1/;
    $currentstring='\ensuremath{'.$currentstring.'}';
       }
  }   }
  $Apache::lonxml::post_evaluate=0;   $Apache::lonxml::post_evaluate=0;
     }      }
Line 169  sub end_tthoption { Line 185  sub end_tthoption {
 sub start_html {  sub start_html {
     my ($target,$token) = @_;      my ($target,$token) = @_;
     my $currentstring = '';      my $currentstring = '';
     my $options=$env{'course.'.$env{'request.course.id'}.'.tthoptions'};  
     &Apache::lontexconvert::init_tth();  
     if ($target eq 'web' || $target eq 'edit' || $target eq 'webgrade' ) {      if ($target eq 'web' || $target eq 'edit' || $target eq 'webgrade' ) {
  $currentstring = &Apache::lonxml::xmlbegin();   # start_body() takes care of emitting the <html> 
     } elsif ($target eq 'tex') {      } elsif ($target eq 'tex') {
  $currentstring .= '\documentclass[letterpaper]{article}';   $currentstring .= 
       '\documentclass[letterpaper,twoside]{article}\raggedbottom';
  if (($env{'form.latex_type'}=~'batchmode') ||   if (($env{'form.latex_type'}=~'batchmode') ||
             (!$env{'request.role.adv'})) {$currentstring .='\batchmode';}               (!$env{'request.role.adv'})) {$currentstring .='\batchmode';} 
  $currentstring .= '\newcommand{\keephidden}[1]{}'.   $currentstring .= '\newcommand{\keephidden}[1]{}'.
                           '\renewcommand{\deg}{$^{\circ}$}'.                            '\renewcommand{\deg}{$^{\circ}$}'.
     '\usepackage{multirow}'.
                           '\usepackage{longtable}'.                            '\usepackage{longtable}'.
                           '\usepackage{textcomp}'.                            '\usepackage{textcomp}'.
                           '\usepackage{makeidx}'.                            '\usepackage{makeidx}'.
                           '\usepackage[dvips]{graphicx}'.                            '\usepackage[dvips]{graphicx}'.
   '\usepackage{wrapfig}'.    '\usepackage{wrapfig}'.
   '\usepackage{picins}'.    '\usepackage{picins}'.
     '\usepackage[T1]{fontenc}'."\n".
     '\usepackage[postscript]{ucs}'."\n".
     '\usepackage[utf8x]{inputenc}'."\n".
     '\usepackage{pifont}' ."\n".
     '\usepackage{latexsym}'."\n".
                           '\usepackage{epsfig}'.                            '\usepackage{epsfig}'.
                           '\usepackage{calc}'.                            '\usepackage{calc}'.
                           '\usepackage{amsmath}'.                            '\usepackage{amsmath}'.
                           '\usepackage{amssymb}'.                            '\usepackage{amssymb}'.
                           '\usepackage{amsfonts}'.                            '\usepackage{amsfonts}'.
                           '\usepackage{amsthm}'.                            '\usepackage{amsthm}'.
                           '\usepackage{amscd}'.                            '\usepackage{amscd}';
                           '\newenvironment{choicelist}{\begin{list}{}{\setlength{\rightmargin}{0in}\setlength{\leftmargin}{0.13in}\setlength{\topsep}{0.05in}\setlength{\itemsep}{0.022in}\setlength{\parsep}{0in}\setlength{\belowdisplayskip}{0.04in}\setlength{\abovedisplayskip}{0.05in}\setlength{\abovedisplayshortskip}{-0.04in}\setlength{\belowdisplayshortskip}{0.04in}}}{\end{list}}'.  
           if($env{'form.pdfFormFields'} eq 'yes') {
               $currentstring .= '\usepackage{hyperref}'.
                                 '\usepackage{eforms}'.
                                 '\usepackage{tabularx}';
           } 
   
           $currentstring .= '\newenvironment{choicelist}{\begin{list}{}{\setlength{\rightmargin}{0in}\setlength{\leftmargin}{0.13in}\setlength{\topsep}{0.05in}\setlength{\itemsep}{0.022in}\setlength{\parsep}{0in}\setlength{\belowdisplayskip}{0.04in}\setlength{\abovedisplayskip}{0.05in}\setlength{\abovedisplayshortskip}{-0.04in}\setlength{\belowdisplayshortskip}{0.04in}}}{\end{list}}'.
                           '\renewenvironment{theindex}{\begin{list}{}{{\vskip 1mm \noindent \large\textbf{Index}} \newline \setlength{\rightmargin}{0in}\setlength{\leftmargin}{0.13in}\setlength{\topsep}{0.01in}\setlength{\itemsep}{0.1in}\setlength{\parsep}{-0.02in}\setlength{\belowdisplayskip}{0.01in}\setlength{\abovedisplayskip}{0.01in}\setlength{\abovedisplayshortskip}{-0.04in}\setlength{\belowdisplayshortskip}{0.01in}}}{\end{list}}';                            '\renewenvironment{theindex}{\begin{list}{}{{\vskip 1mm \noindent \large\textbf{Index}} \newline \setlength{\rightmargin}{0in}\setlength{\leftmargin}{0.13in}\setlength{\topsep}{0.01in}\setlength{\itemsep}{0.1in}\setlength{\parsep}{-0.02in}\setlength{\belowdisplayskip}{0.01in}\setlength{\abovedisplayskip}{0.01in}\setlength{\abovedisplayshortskip}{-0.04in}\setlength{\belowdisplayshortskip}{0.01in}}}{\end{list}}';
     }      }
     return $currentstring;      return $currentstring;
Line 201  sub start_html { Line 229  sub start_html {
 sub end_html {  sub end_html {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;      my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
     my $currentstring = '';      my $currentstring = '';
     if ($target eq 'web') {      if ($target eq 'web' || $target eq 'webgrade') {
  $currentstring = '</html>';   # end_body takes care of the </html>
     }      }
     return $currentstring;      return $currentstring;
 }  }
Line 211  sub end_html { Line 239  sub end_html {
 sub start_head {  sub start_head {
     my ($target,$token) = @_;      my ($target,$token) = @_;
     my $currentstring = '';      my $currentstring = '';
     if ($target eq 'web') {      if ($target eq 'web' || $target eq 'webgrade') {
  $currentstring = $token->[4].&Apache::lonxml::fontsettings();   &Apache::lonxml::startredirection();
     }       } 
     return $currentstring;      return $currentstring;
 }  }
Line 220  sub start_head { Line 248  sub start_head {
 sub end_head {  sub end_head {
     my ($target,$token) = @_;      my ($target,$token) = @_;
     my $currentstring = '';      my $currentstring = '';
     if ($target eq 'web' && $env{'request.state'} eq 'published') {      if (($target eq 'web'      && $env{'request.state'} eq 'published') ||
  $currentstring = &Apache::lonmenu::registerurl(undef,$target).   ($target eq 'webgrade' && $env{'request.state'} eq 'published')) {
     $token->[2];       # in case there is a </head> but no <head>
    if ($Apache::lonxml::redirection) {
       $Apache::londefdef::head = &Apache::lonxml::endredirection();
    }
     }       } 
     return $currentstring;      return $currentstring;
 }  }
Line 354  sub end_form { Line 385  sub end_form {
   
 #-- <title> tag (end tag required)  #-- <title> tag (end tag required)
 sub start_title {  sub start_title {
     my ($target,$token) = @_;      my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
     my $currentstring = '';      my $currentstring = '';
     if ($target eq 'web') {      if ($target eq 'web' || $target eq 'webgrade') {
  $currentstring = $token->[4];        $Apache::londefdef::title = 
       &Apache::lonxml::get_all_text('/title',$parser,$style);
     } elsif ($target eq 'tex') {      } elsif ($target eq 'tex') {
  $currentstring .= '\keephidden{Title of the document:  '    $currentstring .= '\keephidden{Title of the document:  ' 
     }      }
Line 371  sub start_title { Line 403  sub start_title {
 sub end_title {  sub end_title {
     my ($target,$token) = @_;      my ($target,$token) = @_;
     my $currentstring = '';      my $currentstring = '';
     if ($target eq 'web') {      if ($target eq 'web' || $target eq 'webgrade') {
  $currentstring = $token->[2];       # start_title takes care of swallowing the title
     } elsif ($target eq 'tex') {      } elsif ($target eq 'tex') {
  $currentstring .= '}';   $currentstring .= '}';
     }        }  
Line 429  sub start_meta { Line 461  sub start_meta {
  if ((not defined $content) && (not defined $name)) {   if ((not defined $content) && (not defined $name)) {
     &Apache::lonxml::startredirection();      &Apache::lonxml::startredirection();
  }   }
       } elsif ($target eq 'edit') {
    $currentstring .= &Apache::edit::tag_start($target,$token);
    $currentstring .= &Apache::edit::text_arg('Name:','name',$token,30);
    $currentstring .= &Apache::edit::text_arg('Content:','content',$token,70);
    $currentstring .= &Apache::edit::end_row();
       } elsif ($target eq 'modified') {
    my $constructtag =
       &Apache::edit::get_new_args($token,$parstack,$safeeval,
    'name','content');
    if ($constructtag) { $currentstring = &Apache::edit::rebuild_tag($token); }
     }      }
     return $currentstring;      return $currentstring;
 }  }
Line 452  sub end_meta { Line 494  sub end_meta {
     return $currentstring;      return $currentstring;
 }  }
   
   sub insert_meta {
       return '
       <meta />';
   }
   
 # accessrule  # accessrule
 sub start_accessrule {  sub start_accessrule {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;      my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
     my $currentstring = '';      my $currentstring = '';
     my $eff=&Apache::lonxml::get_param      my $eff  =&Apache::lonxml::get_param('effect',$parstack,$safeeval,undef,1);
  ('effect',$parstack,$safeeval,undef,1);      my $realm=&Apache::lonxml::get_param('realm', $parstack,$safeeval,undef,1);
     my $realm=&Apache::lonxml::get_param      my $role =&Apache::lonxml::get_param('role',  $parstack,$safeeval,undef,1);
  ('realm',$parstack,$safeeval,undef,1);      my $type =&Apache::lonxml::get_param('type',  $parstack,$safeeval,undef,1);
     my $role=&Apache::lonxml::get_param  
  ('role',$parstack,$safeeval,undef,1);      my ($dom,$crs,$sec,$separator);
     $realm=~s/\s+//g;      if ($type eq 'user') {
     $realm=~s/\//\_/g;   ($dom,$crs,$sec)=split(m{/},$realm);
     $realm=~s/^\_//;   $crs = &LONCAPA::clean_username($crs);
     $realm=~s/\W/\;/g;   $separator = '/';
     $role=~s/\s+//g;      } else {
     $role=~s/\//\_/g;   ($dom,$crs,$sec)=split(/\_/,$realm);
     $role=~s/\W/\;/g;   $crs = &LONCAPA::clean_courseid($crs);
    $separator = '_';
       }
       $dom = &LONCAPA::clean_domain($dom);
   
       $sec =~s/\W//;
       $realm = $dom;
       if ($crs =~ /\S/) { $realm .= $separator.$crs; }
       if ($sec =~ /\S/) { $realm .= $separator.$sec; }
       $role=~s/\W//g;
   
     if ($target eq 'web') {      if ($target eq 'web') {
  my $args='';   my $args='';
  if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }   if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
Line 479  sub start_accessrule { Line 536  sub start_accessrule {
  }   }
     }      }
     if ($target eq 'meta') {      if ($target eq 'meta') {
  $currentstring='<rule>'.$eff.':'.$realm.':'.$role.'</rule>';   $currentstring='<rule>'.$eff.':'.$realm.':'.$role.':'.$type.'</rule>';
     }      }
     return $currentstring;      return $currentstring;
 }  }
Line 497  sub end_accessrule { Line 554  sub end_accessrule {
     return $currentstring;      return $currentstring;
 }  }
   
   sub generate_css_links {
       my $links;
       my $css_href = &Apache::lonnet::EXT('resource.0.cssfile');
       if ($css_href =~ /\S/) {
    &Apache::lonxml::extlink($css_href);
    $links .= 
       '<link rel="stylesheet" type="text/css" href="'.$css_href.'" />';
       }
       return $links;
   }
   
 #-- <body> tag (end tag required)  #-- <body> tag (end tag required)
 sub start_body {  sub start_body {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;      my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
     my $currentstring = '';      my $currentstring = '';
   
     if ($target eq 'web') {      if ($target eq 'web' || $target eq 'webgrade') {
  if ($Apache::lonhomework::parsing_a_problem) {   if ($Apache::lonhomework::parsing_a_problem) {
     &Apache::lonxml::warning("<body> tag found inside of <problem> tag this can cause problems.");      &Apache::lonxml::warning("<body> tag found inside of <problem> tag this can cause problems.");
     return '';      return '';
  }   }
  if (!$Apache::lonxml::registered &&   
     $env{'request.state'} eq 'published') {  
     $currentstring.='<head>'.  
  &Apache::lonmenu::registerurl(undef,$target).'</head>';  
  }  
 # Accessibility  
  if ($env{'browser.imagesuppress'} eq 'on') {  
     delete($token->[2]->{'background'});  
  }  
  if ($env{'browser.fontenhance'} eq 'on') {  
     my $style='';  
     foreach my $key (keys(%{$token->[2]})) {  
  if ($key =~ /^style$/i) {  
     $style.=$token->[2]->{$key}.';';  
     delete($token->[2]->{$key});  
  }  
     }  
     $token->[2]->{'style'}=$style.'; font-size: x-large;';  
  }  
  if ($env{'browser.blackwhite'} eq 'on') {  
     delete($token->[2]->{'font'});  
     delete($token->[2]->{'link'});  
     delete($token->[2]->{'alink'});  
     delete($token->[2]->{'vlink'});  
     delete($token->[2]->{'bgcolor'});  
     delete($token->[2]->{'background'});  
  }  
 # Overload loads  
  my $onLoad='';  
  foreach my $key (keys(%{$token->[2]})) {  
     if ($key =~ /^onload$/i) {  
  $onLoad.=$token->[2]->{$key}.';';  
  delete($token->[2]->{$key});  
     }  
  }  
  $token->[2]->{'onload'}=&Apache::lonmenu::loadevents().';'.$onLoad;  
  my $onUnload='';  
  foreach my $key (keys(%{$token->[2]})) {  
     if ($key =~ /^onunload$/i) {  
  $onUnload.=$token->[2]->{$key}.';';  
  delete($token->[2]->{$key});  
     }  
  }  
  $token->[2]->{'onunload'}=&Apache::lonmenu::unloadevents().  
     ';'.$onUnload;  
   
  $currentstring .= '<'.$token->[1];   if (&is_inside_of($tagstack, "head")) {
  foreach (keys %{$token->[2]}) {      &end_head(@_);
     $currentstring.=' '.$_.'="'.$token->[2]->{$_}.'"';  
  }  
  $currentstring.='>';  
  &Apache::lontexconvert::jsMath_reset();  
  if ($env{'environment.texengine'} eq 'jsMath') {  
     $currentstring.=&Apache::lontexconvert::jsMath_header();  
  }   }
   
    my $extra_head = &generate_css_links();
   
    $currentstring = 
       &Apache::loncommon::start_page($Apache::londefdef::title,
      $Apache::londefdef::head
         .$extra_head,
      {'add_entries'    => $token->[2],
       'no_title'       => 1,
       'force_register' => 1});
   
  if ($env{'request.state'} ne 'published') {   if ($env{'request.state'} ne 'published') {
     if ($env{'environment.remote'} eq 'off') {      $currentstring.=&Apache::lonmenu::constspaceform();
  $currentstring.=       $currentstring.=&Apache::londefdef::edit_controls();
     &Apache::lonmenu::constspaceform().  
     &Apache::lonmenu::menubuttons(1,'web',1);  
     }  
     $currentstring.=(<<EDITBUTTON);  
 <form method="post">  
 <input type="submit" name="editmode" accesskey="e" value="Edit" />  
 </form>  
 EDITBUTTON  
  } else {  
     $currentstring.=&Apache::lonmenu::menubuttons(undef,$target,1);  
  }   }
  $currentstring.=&Apache::lonxml::message_location();   $currentstring.=&Apache::lonxml::message_location();
     } elsif ($target eq 'tex') {      } elsif ($target eq 'tex') {
Line 583  EDITBUTTON Line 601  EDITBUTTON
     return $currentstring;      return $currentstring;
 }  }
   
   sub edit_controls {
       my $result .= '
   <form method="post">
   <div class="LC_edit_problem_header">
   <div class="LC_edit_problem_header_row1">'.
   &Apache::lonxml::renderingoptions().'
   <input type="submit" name="changeproblemmode" value="'.&mt('Change View').'" />
   </div>
   <div class="LC_edit_problem_header_edit_row"><input type="submit" name="editmode" accesskey="e" value="Edit" /></div></div>
   </form>
   <br />';
       return $result;
   }
   
 sub end_body {  sub end_body {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;      my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
     my $currentstring = &end_p(); # Close off unclosed <p>      my $currentstring = &end_p(); # Close off unclosed <p>
     if ($target eq 'web') {      if ($target eq 'web' || $target eq 'webgrade') {
  $currentstring .= &Apache::lonxml::xmlend($target,$parser);   $currentstring .= &Apache::loncommon::end_page({'discussion' => 1});
     } elsif ($target eq 'tex') {      } elsif ($target eq 'tex') {
  $currentstring .= '\strut\newline\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}\newline\noindent \end{document}';     $currentstring .= '\strut\newline\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}\newline\noindent \end{document}';  
     }       } 
Line 595  sub end_body { Line 627  sub end_body {
 }  }
   
 # \begin{center} causes a new paragprah spacing that looks odd inside   # \begin{center} causes a new paragprah spacing that looks odd inside 
 # of a table cell  # of a table cell.  Same at the end of a \center but with a slightly
 sub center_correction { return '\vspace*{-6 mm}'; }  # larger space .. hence center_correction and center_end_correction.
   #
   sub center_correction { return '\vspace*{-6 mm}'; } 
   sub center_end_correction { return '\vspace*{-7 mm}'; }
   
 #-- <center> tag (end tag required)  #-- <center> tag (end tag required)
 sub start_center {  sub start_center {
     my ($target,$token,$tagstack) = @_;      my ($target,$token,$tagstack) = @_;
Line 620  sub end_center { Line 656  sub end_center {
     } elsif ($target eq 'tex') {      } elsif ($target eq 'tex') {
  $currentstring = '\end{center}';     $currentstring = '\end{center}';  
  if (&is_inside_of($tagstack, "table")) {   if (&is_inside_of($tagstack, "table")) {
     #$currentstring .= &center_correction();      $currentstring .= &center_end_correction();
  }   }
     }      }
     return $currentstring;      return $currentstring;
Line 1187  sub start_p { Line 1223  sub start_p {
     $closing_string = '</p>'; # Deal correctly with <p /> e.g.      $closing_string = '</p>'; # Deal correctly with <p /> e.g.
  }   }
     } elsif ($target eq 'tex' && !$para_disabled) {      } elsif ($target eq 'tex' && !$para_disabled) {
   
  $currentstring .= &end_p(); # close off prior para if in progress.   $currentstring .= &end_p(); # close off prior para if in progress.
  my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);   my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
  if ($align eq 'center') {   if ($align eq 'center') {
     $currentstring .='\begin{center}\par';      $currentstring .='\begin{center}\par ';
     $closing_string = '\end{center}';      $closing_string = '\end{center}';
     if (&is_inside_of($tagstack, "table")) {      if (&is_inside_of($tagstack, "table")) {
  $currentstring = &center_correction().$currentstring;   $currentstring = &center_correction().$currentstring;
  #$closing_string .= &center_correction();  
     }      }
  } elsif ($align eq 'right') {   } elsif ($align eq 'right') {
     $currentstring.='\makebox['.$env{'form.textwidth'}.']{\hfill\llap{';      $currentstring.="\n".'{\flushright ';
     $closing_string= '}}';  #    $currentstring.='\makebox['.$env{'form.textwidth'}.']{\hfill\llap{';
       $closing_string= "}\n";
  } elsif ($align eq 'left') {   } elsif ($align eq 'left') {
     $currentstring.='\noindent\makebox['.$env{'form.textwidth'}.']{\rlap{';      $currentstring.= "\n".'{\flushleft ';
     $closing_string = '}\hfill}';  #    $currentstring.='\noindent\makebox['.$env{'form.textwidth'}.']{{';
       $closing_string = "}\n";
  } else {   } else {
             $currentstring.='\par ';              $currentstring.='\par ';
     $closing_string = '\strut\\\\\strut ';      if (&is_inside_of($tagstack, 'table')) {
    $closing_string = '\vskip 0pt'; # Seems to be consistent with <p> in tables.
       } else {
    $closing_string = '\strut\\\\\strut ';
       }
         }          }
   
     }      }
Line 1241  sub start_br { Line 1283  sub start_br {
  #   #
  for (my $i=$#tempo;$i>=0;$i--) {   for (my $i=$#tempo;$i>=0;$i--) {
     if (($tempo[$i] eq 'b') || ($tempo[$i] eq 'strong') ||      if (($tempo[$i] eq 'b') || ($tempo[$i] eq 'strong') ||
                 ($tempo[$i] eq 'ol') || ($tempo[$i] eq 'ul') ||                  ($tempo[$i] eq 'ol') || ($tempo[$i] eq 'ul'))  {
                 ($tempo[$i] eq 'td') || ($tempo[$i] eq 'th'))  {  
  $signal=1;   $signal=1;
  last;      }
       if (($tempo[$i] eq 'td') || ($tempo[$i] eq 'th')) {
    $signal = 1;
     }      }
  }   }
  if ($signal) {   if ($signal != 1) {
     $currentstring .= ' \vskip 0 mm ';  
  } elsif ($$tagstack[-2] ne 'sub' && $$tagstack[-2] ne 'sup') {  
     $currentstring .= '\strut \\\\ \strut ';      $currentstring .= '\strut \\\\ \strut ';
  }   }
       
     }      }
     return $currentstring;      return $currentstring;
 }  }
Line 1433  sub start_sub { Line 1475  sub start_sub {
     if ($target eq 'web' || $target eq 'webgrade') {      if ($target eq 'web' || $target eq 'webgrade') {
  $currentstring .= $token->[4];   $currentstring .= $token->[4];
     } elsif ($target eq 'tex') {      } elsif ($target eq 'tex') {
  $currentstring .= '\ensuremath{_{';   $currentstring .= '\raisebox{-\smallskipamount}{\scriptsize{';
     }       } 
     return $currentstring;      return $currentstring;
 }  }
Line 1456  sub start_sup { Line 1498  sub start_sup {
     if ($target eq 'web' || $target eq 'webgrade') {      if ($target eq 'web' || $target eq 'webgrade') {
  $currentstring .= $token->[4];   $currentstring .= $token->[4];
     } elsif ($target eq 'tex') {      } elsif ($target eq 'tex') {
  $currentstring .= '\ensuremath{^{';   $currentstring .= '\raisebox{\smallskipamount}{\scriptsize{';
     }       } 
     return $currentstring;      return $currentstring;
 }  }
Line 1479  sub start_hr { Line 1521  sub start_hr {
     if ($target eq 'web' || $target eq 'webgrade') {      if ($target eq 'web' || $target eq 'webgrade') {
  $currentstring .= $token->[4];   $currentstring .= $token->[4];
     } elsif ($target eq 'tex') {      } elsif ($target eq 'tex') {
   
    # <hr /> can't be inside of <sup><sub> thank you LaTeX.
    # 
    my $restart_sub = 0;
    my $restart_sup = 0;
   
    # Since <sub> and <sup> are simple tags it's ok to turn off/on
    # using the start_ stop_ functions.. those tags only care about
    # $target.
   
    if (&is_inside_of($tagstack, "sub")) {
       $restart_sub = 1;
       $currentstring .= &end_sub($target, $token, $tagstack, 
          $parstack, $parser, $safeeval);
    }
    if (&is_inside_of($tagstack, "sup")) {
       $restart_sup = 1;
       $currentstring .= &end_sup($target, $token, $tagstack,
          $parstack, $parser, $safeeval);
    }
   
  my $LaTeXwidth = &Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);   my $LaTeXwidth = &Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
  if (defined $LaTeXwidth) {   if (defined $LaTeXwidth) {
     if ($LaTeXwidth=~/^%/) {      if ($LaTeXwidth=~/^%/) {
Line 1499  sub start_hr { Line 1562  sub start_hr {
  }   }
  $currentstring .= ' \vskip 0 mm \noindent\makebox['.$LaTeXwidth.']{'.$pre.'\makebox['.   $currentstring .= ' \vskip 0 mm \noindent\makebox['.$LaTeXwidth.']{'.$pre.'\makebox['.
                                     $LaTeXwidth.'][b]{\hrulefill}'.$post.'}\vskip 0 mm ';                                      $LaTeXwidth.'][b]{\hrulefill}'.$post.'}\vskip 0 mm ';
    # Turn stuff back on that we can't be inside of.
   
    if ($restart_sub) {
       $currentstring .= &start_sub($target, $token, $tagstack,
    $parstack, $parser, $safeeval);
    }
    if ($restart_sup) {
       $currentstring .= &start_sup($target, $token, $tagstack,
    $parstack, $parser, $safeeval);
    }
     }       } 
     return $currentstring;      return $currentstring;
 }  }
Line 1529  sub start_div { Line 1602  sub start_div {
     }       } 
     if ($target eq 'tex') {      if ($target eq 'tex') {
  # 4 possible alignments: left, right, center, and -missing-.   # 4 possible alignments: left, right, center, and -missing-.
           # If inside a table row, we must let the table logic
    # do the alignment, however.
    # 
   
  my $endstring = '';   my $endstring = '';
   
Line 1539  sub start_div { Line 1615  sub start_div {
     $endstring      = '\end{center}';      $endstring      = '\end{center}';
     if (&is_inside_of($tagstack, "table")) {      if (&is_inside_of($tagstack, "table")) {
  $currentstring = &center_correction().$currentstring;   $currentstring = &center_correction().$currentstring;
  #$endstring .= &center_correction();   $endstring    .= &center_end_correction(); 
     }      }
  }   }
  elsif ($align eq 'right') {   elsif ($align eq 'right') {
Line 1580  sub start_a { Line 1656  sub start_a {
  my $href=&Apache::lonxml::get_param('href',$parstack,$safeeval,   my $href=&Apache::lonxml::get_param('href',$parstack,$safeeval,
     undef,1);      undef,1);
  $currentstring=&Apache::lonenc::encrypt_ref($token,{'href'=>$href});   $currentstring=&Apache::lonenc::encrypt_ref($token,{'href'=>$href});
     } elsif ($target eq 'tex') {  
  my $a=&Apache::lonxml::get_param('href',$parstack,$safeeval,undef,1);  
  my $b=&Apache::lonxml::get_param('name',$parstack,$safeeval,undef,1);  
  if ($a=~/\S/) {  
     $a=~s/([^\\])%/$1\\\%/g;  
     $currentstring .= '\ref{URI: '.$a.'}';  
  } elsif ($b=~/\S/) {  
     $currentstring .= '\ref{Anchor: '.$b.'}';  
  } else {  
     $currentstring.='';  
  }  
     }      }
     return $currentstring;      return $currentstring;
 }  }
Line 1601  sub end_a { Line 1666  sub end_a {
     if ($target eq 'web' || $target eq 'webgrade') {      if ($target eq 'web' || $target eq 'webgrade') {
  $currentstring .= $token->[2];   $currentstring .= $token->[2];
     }      }
       if ($target eq 'tex') {
    my $href =
       &Apache::lonxml::get_param('href',$parstack,$safeeval,undef,1);
    my $name =
       &Apache::lonxml::get_param('name',$parstack,$safeeval,undef,1);
           my $uriprint =
               &Apache::lonxml::get_param('uriprint',$parstack,$safeeval,undef,1);
           my $anchorprint =
               &Apache::lonxml::get_param('anchorprint',$parstack,$safeeval,undef,1);
    if (($href =~ /\S/) && ($uriprint=~/^on|uriprint|yes|1$/i)) {
       $href =~ s/([^\\])%/$1\\\%/g;
       # Substitute special symbols... and allow line breaks at each /
       #
       $href = &Apache::lonxml::latex_special_symbols($href);
       $href =~ s/\//\/\\-/g;              # Map / to /\- to allow hyphenation.
       $currentstring .= ' ({\tt URI:'.$href.'})';
    } elsif (($name =~ /\S/) && ($anchorprint=~/^on|anchorprint|yes|1$/i)) {
       $currentstring .= ' ({\tt Anchor:'.&Apache::lonxml::latex_special_symbols($name).'})';
    } else {
       $currentstring.='';
    }
       }
     return $currentstring;      return $currentstring;
 }  }
   
Line 1938  sub start_table { Line 2025  sub start_table {
     if ($target eq 'web' || $target eq 'webgrade') {      if ($target eq 'web' || $target eq 'webgrade') {
  $currentstring .= $token->[4];        $currentstring .= $token->[4];     
     } elsif ($target eq 'tex') {      } elsif ($target eq 'tex') {
  my $aa = {};   push(@Apache::londefdef::table, {}); 
  push @Apache::londefdef::table, $aa;   
  $Apache::londefdef::table[-1]{'row_number'} = -1;   $Apache::londefdef::table[-1]{'row_number'} = -1;
         #maximum table's width (default coincides with text line length)          #maximum table's width (default coincides with text line length)
  if ($#Apache::londefdef::table==0) {   if ($#Apache::londefdef::table==0) {
     $textwidth=&recalc($env{'form.textwidth'}); #result is always in mm      $textwidth=&recalc($env{'form.textwidth'}); #result is always in mm
     $textwidth=~/(\d+\.?\d*)/;      $textwidth=~/(\d+\.?\d*)/;
     $textwidth=0.95*$1; #accounts "internal" LaTeX space for table frame      $textwidth=0.85*$1; #accounts "internal" LaTeX space for table frame
  } else {   } else {
     if ($Apache::londefdef::table[-2]{'TeXlen'}[$Apache::londefdef::table[-2]{'row_number'}][$Apache::londefdef::table[-2]{'counter_columns'}]=~/\d/) {      if ($Apache::londefdef::table[-2]{'TeXlen'}[$Apache::londefdef::table[-2]{'row_number'}][$Apache::londefdef::table[-2]{'counter_columns'}]=~/\d/) {
  #the maximum width of nested table is determined by LATeX width of parent cell   #the maximum width of nested table is determined by LATeX width of parent cell
Line 1971  sub start_table { Line 2057  sub start_table {
     } else {       } else { 
  $TeXwidth = $textwidth;   $TeXwidth = $textwidth;
     }      }
  } else {  
     $Apache::londefdef::table[-1]{'forcedtablewidth'} = 1;  
  }   }
    # if the width is specified as a % it is converted to an absolute width.
    # otherwise.. just plugged right in the hash
   
  if ($TeXwidth=~/%/) {   if ($TeXwidth=~/%/) {
     $Apache::londefdef::table[-1]{'percent'}=1;  
     $TeXwidth=~/(\d+)/;      $TeXwidth=~/(\d+)/;
             $Apache::londefdef::table[-1]{'width'}=$1*$textwidth/100;              $Apache::londefdef::table[-1]{'width'}=$1*$textwidth/100;
  } else {   } else {
     $Apache::londefdef::table[-1]{'width'}=$TeXwidth;      $Apache::londefdef::table[-1]{'width'}=$TeXwidth;
  }           }
           #  In the end, however the table width cannot be wider than $textwidth...
   
    if ($Apache::londefdef::table[-1]{'width'} > $textwidth) {
       $Apache::londefdef::table[-1]{'width'} = $textwidth;
    }
         #table's border          #table's border
  my $border = &Apache::lonxml::get_param('border',$parstack,$safeeval);    my $border = &Apache::lonxml::get_param('border',$parstack,$safeeval); 
         my $permission=&Apache::lonxml::get_param('TeXDropEmptyColumns',$parstack,$safeeval,undef,0);          my $permission=&Apache::lonxml::get_param('TeXDropEmptyColumns',$parstack,$safeeval,undef,0);
Line 2008  sub start_table { Line 2098  sub start_table {
         $Apache::londefdef::table[-1]{'minlen'}=[];          $Apache::londefdef::table[-1]{'minlen'}=[];
         $Apache::londefdef::table[-1]{'content'}=[];          $Apache::londefdef::table[-1]{'content'}=[];
         $Apache::londefdef::table[-1]{'align'}=[];          $Apache::londefdef::table[-1]{'align'}=[];
         $currentstring.='\keephidden{NEW TABLE ENTRY}';          $currentstring.=' \keephidden{NEW TABLE ENTRY}';
   
   
     }      }
Line 2021  sub end_table { Line 2111  sub end_table {
     if ($target eq 'web' || $target eq 'webgrade') {      if ($target eq 'web' || $target eq 'webgrade') {
  $currentstring = $token->[2];        $currentstring = $token->[2];     
     } elsif ($target eq 'tex') {      } elsif ($target eq 'tex') {
    my $border =  &Apache::lonxml::get_param('border',$parstack,$safeeval);
  my $inmemory = '';   my $inmemory = '';
  my $output = '';   my $output = '';
  my $WARNING='';   my $WARNING='';
         #width of columns from TeXwidth attributes          #width of columns from TeXwidth attributes
   
    # Protect against unbalanced </table> tag.
   
    if (scalar(@Apache::londefdef::table) > 0) {
   
  for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {   for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
     for (my $jn=0;$jn<=$Apache::londefdef::table[-1]{'counter_columns'};$jn++) {      for (my $jn=0;$jn<=$Apache::londefdef::table[-1]{'counter_columns'};$jn++) {
  if ($Apache::londefdef::table[-1]{'TeXlen'}[0][$jn]<$Apache::londefdef::table[-1]{'TeXlen'}[$in][$jn]) {   if ($Apache::londefdef::table[-1]{'TeXlen'}[0][$jn]<$Apache::londefdef::table[-1]{'TeXlen'}[$in][$jn]) {
Line 2043  sub end_table { Line 2138  sub end_table {
  $available_space=$available_space-$Apache::londefdef::table[-1]{'TeXlen'}[0][$jn];   $available_space=$available_space-$Apache::londefdef::table[-1]{'TeXlen'}[0][$jn];
     }      }
  }   }
   
         #boundaries for contents columns          #boundaries for contents columns
  my @min_len=();#columns can not be narrower    my @min_len=();#columns can not be narrower 
  my @max_len=();#maximum length of column   my @max_len=();#maximum length of column
  for (my $jn=0;$jn<=$Apache::londefdef::table[-1]{'counter_columns'};$jn++) {   my $avg_max;
    my $avg_min;
    my $counter_cols = $Apache::londefdef::table[-1]{'counter_columns'};
    for (my $jn=0;$jn<=$counter_cols; $jn++) {
  my ($localmin,$localmax)=(0,0);   my ($localmin,$localmax)=(0,0);
  for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {   for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
     if ($localmin<$Apache::londefdef::table[-1]{'minlen'}[$in][$jn]) {      if ($localmin<$Apache::londefdef::table[-1]{'minlen'}[$in][$jn]) {
Line 2058  sub end_table { Line 2157  sub end_table {
  }   }
  push @min_len, $localmin;   push @min_len, $localmin;
  push @max_len, $localmax;   push @max_len, $localmax;
    $avg_max = $localmax + $avg_max;
    $avg_min = $localmin + $avg_min;
  }   }
  for (my $jn=0;$jn<=$Apache::londefdef::table[-1]{'counter_columns'};$jn++) {   # Does not really matter what the average max/min are if there are no cols.
    # and this prevents div 0 in that case.
   
    if ($counter_cols != 0) {
       $avg_max = $avg_max/$counter_cols;
       $avg_min = $avg_min/$counter_cols;
    }
   
   
    #  I don't think the below is needed.. but just in case:
   
    if ($avg_min > $avg_max) {
       my $temp = $avg_min;
       $avg_min = $avg_max;
       $avg_max = $temp;
    }
   
   
    for (my $jn=0;$jn<=$counter_cols;$jn++) {
     my $localmin=0,;      my $localmin=0,;
     for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {      for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
  if ($localmin<$Apache::londefdef::table[-1]{'objectlen'}[$in][$jn]) {   if ($localmin<$Apache::londefdef::table[-1]{'objectlen'}[$in][$jn]) {
Line 2078  sub end_table { Line 2197  sub end_table {
  $min_len[$jn]=0;   $min_len[$jn]=0;
  $max_len[$jn]=0;   $max_len[$jn]=0;
     }      }
       #  Spans seem to be really bothered by max/min = 0.  So if we have one
       #  make it an average joe max/min.
       
       if ($max_len[$jn] == 0) {
    $max_len[$jn] = $avg_max;
       }
       if ($min_len[$jn] == 0) {
    $min_len[$jn] = $avg_min;
       }
   
  }   }
        #final adjustment of column width         #final adjustment of column width
  my @fwidth=@{$Apache::londefdef::table[-1]{'TeXlen'}[0]};#final width array   my @fwidth=@{$Apache::londefdef::table[-1]{'TeXlen'}[0]};#final width array
  my @adjust=();   my @adjust=();
         #step 1. adjustment by maximum value          #step 1. adjustment by maximum value
  my $space_neeeded=0;   my $space_needed=0;
  for (my $jn=0;$jn<=$#max_len;$jn++) {   for (my $jn=0;$jn<=$#max_len;$jn++) {
     $space_neeeded=$space_neeeded+$max_len[$jn];      $space_needed=$space_needed+$max_len[$jn];
  }   }
  if ($space_neeeded<=$available_space) {   if ($space_needed<=$available_space) {
   
     for (my $jn=0;$jn<=$#max_len;$jn++) {      for (my $jn=0;$jn<=$#max_len;$jn++) {
  if ($fwidth[$jn]==0) {   if ($fwidth[$jn]==0) {
     $fwidth[$jn]=$max_len[$jn];      $fwidth[$jn]=$max_len[$jn];
Line 2095  sub end_table { Line 2225  sub end_table {
     }      }
  } else {   } else {
         #step 2. adjustment by minimum value (estimation)          #step 2. adjustment by minimum value (estimation)
     $space_neeeded=0;      $space_needed=0;
     for (my $jn=0;$jn<=$#min_len;$jn++) {      for (my $jn=0;$jn<=$#min_len;$jn++) {
  $space_neeeded+=$min_len[$jn];   $space_needed+=$min_len[$jn];
     }      }
     if ($space_neeeded>$available_space) {      if ($space_needed>$available_space) {
  $WARNING=' \textbf{NOT ENOUGH SPACE FOR TABLE} ';   $WARNING=' \textbf{NOT ENOUGH SPACE FOR TABLE} ';
  for (my $jn=0;$jn<=$#max_len;$jn++) {   for (my $jn=0;$jn<=$#max_len;$jn++) {
     if ($fwidth[$jn]==0) {      if ($fwidth[$jn]==0) {
Line 2116  sub end_table { Line 2246  sub end_table {
     }      }
  }   }
  if ($how_many_to_scale>0) {   if ($how_many_to_scale>0) {
     my $space_to_adjust=($space_neeeded-$available_space)/$how_many_to_scale;      my $space_to_adjust=($space_needed-$available_space)/$how_many_to_scale;
     foreach my $jn (@to_scale) {      foreach my $jn (@to_scale) {
  for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {   for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
     $Apache::londefdef::table[-1]{'content'}[$in][$jn]=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/;      $Apache::londefdef::table[-1]{'content'}[$in][$jn]=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/;
Line 2138  sub end_table { Line 2268  sub end_table {
  }   }
     } else {      } else {
       #step 3. adjustment over minimal + corrections        #step 3. adjustment over minimal + corrections
  my $enlarge_coef=$available_space/$space_neeeded;   my $enlarge_coef=$available_space/$space_needed;
  my $acsessive=0;   my $acsessive=0;
  for (my $jn=0;$jn<=$#min_len;$jn++) {   for (my $jn=0;$jn<=$#min_len;$jn++) {
     $adjust[$jn]=$min_len[$jn]*$enlarge_coef;      $adjust[$jn]=$min_len[$jn]*$enlarge_coef;
Line 2146  sub end_table { Line 2276  sub end_table {
  $fwidth[$jn]=$max_len[$jn];   $fwidth[$jn]=$max_len[$jn];
  $acsessive=$acsessive+$adjust[$jn]-$max_len[$jn];   $acsessive=$acsessive+$adjust[$jn]-$max_len[$jn];
  $adjust[$jn]=0;   $adjust[$jn]=0;
   
     }      }
  }   }
  if ($acsessive>0) {   if ($acsessive>0) {
Line 2170  sub end_table { Line 2301  sub end_table {
  }   }
     }      }
  }   }
         #use all available width if it is defined in % or as TeXwidth          # use all available width or specified width as if not specified,
         if (($Apache::londefdef::table[-1]{'percent'}==1) || ($Apache::londefdef::table[-1]{'forcetablewidth'}==1)) {   # the specified width gets defaulted to the available width.
     my $current=0;   
     for (my $i=0;$i<=$#fwidth;$i++) {     my $current=0; 
  $current+=$fwidth[$i];   for (my $i=0;$i<=$#fwidth;$i++) {  
     }      $current+=$fwidth[$i];
     my $coef=$Apache::londefdef::table[-1]{'width'}/$current;   }
     for (my $i=0;$i<=$#fwidth;$i++) {     if ($current == 0) {
  $fwidth[$i]*=$coef;              $current = $Apache::londefdef::table[-1]{'width'};
     }          }
    my $coef=$Apache::londefdef::table[-1]{'width'}/$current;
    for (my $i=0;$i<=$#fwidth;$i++) {  
       $fwidth[$i]*=$coef;
  }   }
         #removing of empty columns if allowed          #removing of empty columns if allowed
         my $permission=&Apache::lonxml::get_param('TeXDropEmptyColumns',$parstack,$safeeval,undef,0);          my $permission=&Apache::lonxml::get_param('TeXDropEmptyColumns',$parstack,$safeeval,undef,0);
Line 2200  sub end_table { Line 2334  sub end_table {
     $Apache::londefdef::table[-1]{'content'}=\@cleaned_table;      $Apache::londefdef::table[-1]{'content'}=\@cleaned_table;
     @fwidth=@cleaned_header;      @fwidth=@cleaned_header;
  }   }
   
   
  #construct header of the table   #construct header of the table
  my $header_of_table = '{'.$Apache::londefdef::table[-1]{'vvinc'};   my $header_of_table = '{'.$Apache::londefdef::table[-1]{'vvinc'};
  for (my $in=0;$in<=$#fwidth;$in++) {   for (my $in=0;$in<=$#fwidth;$in++) {
     $header_of_table.='p{'.$fwidth[$in].' mm}'.$Apache::londefdef::table[-1]{'vvinc'};      $header_of_table.='p{'.$fwidth[$in].' mm}'.$Apache::londefdef::table[-1]{'vvinc'};
  }   }
  $header_of_table .= '}';   $header_of_table .= '}';
   
  #fill the table   #fill the table
  for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {   for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
       my $have_rowspan = 0;
     for (my $jn=0;$jn<=$#fwidth;$jn++) {      for (my $jn=0;$jn<=$#fwidth;$jn++) {
  if ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'c') {  
     $output.=&center_correction().'\begin{center}';   #-----------------------------------------------------------
  } elsif ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'r') {                  #   I think this order of doing things will ensure that
     $output.=' \hfill \llap{'   #   single rowspan, columspan and combined row/colspans will
                   #   work correctly.  LaTeX is delicate here.
    #    RF.
   
    # Start a rowspan if necessary:
   
    my $primary_col_width = $fwidth[$jn]; # Width of primary column.
    my $rowspan = $Apache::londefdef::table[-1]{'rowspan'}[$in][$jn];
    my $colspan = $Apache::londefdef::table[-1]{'colspan'}[$in][$jn];
    #
    #  Do the appropriate magic if this has a colspan
    # 
   
    my $border_char = "";
    if ($border) {
       $border_char = "|";
    }
    my $spanwidth = 0;
    if ($colspan > 1) {
       for (my $spancol = $jn; $spancol < $jn + $colspan; $spancol++) {
    $spanwidth += $fwidth[$spancol];
       }
       $output .= '\multicolumn{'.
    $colspan
    ."}";
       if ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'c') {
    $output .= '{'.$border_char.'c'.$border_char.'}{';
       } elsif ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'r') {
    $output .= '{'.$border_char.'r'.$border_char.'}{';
       }
       else {
    $output .= '{'.$border_char."p{$spanwidth mm}".$border_char.'}{';
       }
       
    } else {
       $spanwidth = $primary_col_width; # If no span width will be just colwidth
  }   }
   
    # Rowspan... if colspan is 1, and there's an alignment we'll need
    # to kick in a multicolumn in order to get the alignment spec.
    # this must precede the multirow or LaTex gets quite upset.
    # Naturally if colspan > 1 we've already done that above ^
    #
    my $multirow_aligned = 0;
    if ($rowspan > 1) {
       if ($colspan == 1) {
    if ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'c') {
       $output .= '\multicolumn{1}{'.$border_char.'c'.$border_char.'}{';
       $multirow_aligned = 1;
    } elsif ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'r') {
       $output .= '\multicolumn{1}{'.$border_char.'r'.$border_char.'}{';
       $multirow_aligned = 1;
    }
       }
       $have_rowspan++;
       if ($multirow_aligned) {
    $output .= '\multirow{'.$rowspan.'}[0]{*}{';
       } else {
    $output .= '\multirow{'.$rowspan."}[0]{$spanwidth mm}{";
       }
       
       $Apache::londefdef::table[-1]{'content'}[$in][$jn] =~
    s{^\s*\\par\s*}{};
       $Apache::londefdef::table[-1]{'content'}[$in][$jn] =~
    s{\s*\\vskip\s*0pt\s*$}{};
     
       #
       # If we did not throw in a multicolumn to align, then add 
       # an extra {
       # so we close correctly without having to keep additional state
       # around
       #
       if (!$multirow_aligned) {
    $output .= '{';
       }
    }
    if (($rowspan eq '^') || ($rowspan eq '_')) {
       $have_rowspan++;
    }
       #--------------------------------------------------------------
   
   
    # For right and center alignment of single cells.
    # we are going to use a multicolumn with a span of 1 to specify alignment.
    #
    if ($colspan == 1  && $rowspan == 1) {
       if ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'c') {
    $output .= '\multicolumn{1}{'.$border_char.'c'.$border_char.'}{';
       } elsif ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'r') {
    $output .= '\multicolumn{1}{'.$border_char.'r'.$border_char.'}{';
       }
    }
   
  $output.=$Apache::londefdef::table[-1]{'content'}[$in][$jn];   $output.=$Apache::londefdef::table[-1]{'content'}[$in][$jn];
  if ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'c') {  
     $output.='\end{center}';#.&center_correction();   if (($colspan == 1 && $rowspan == 1)   &&
  } elsif ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'r') {      (($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'c') ||
     $output.='} ';       ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'r'))) {
       $output .= '}';
    }
   
    # Close off any open multirow:
   
    if ($rowspan > 1) {
       $output .= '}}';
    }
    #  Close off the colspan...
    #
    if ($colspan > 1)  {
       $output .= '}';
       $jn += $colspan-1; # Adjust for number of rows really left.
  }   }
                 if ($jn!=$#fwidth) {$output.=' '.$Apache::londefdef::table[-1]{'vinc'};}                  if ($jn!=$#fwidth) {$output.=' '.$Apache::londefdef::table[-1]{'vinc'};}
     }      }
     $output.=' \\\\ '.$Apache::londefdef::table[-1]{'hinc'}.' ';      #  If have_rowspan > 0, and borders are on, then 
       #  we need to do more than put an \hline at the bottom of row.
       #  we need to do the appropriate \cline to ensure that
       #  the spanned rows don't have \hlines through them.
   
       if (($Apache::londefdef::table[-1]{'hinc'} =~ /\\hline/) && $have_rowspan) {
    $output .= ' \\\\ ';
    for (my $jn=0; $jn<=$#fwidth;$jn++) {
       my $rowspan = $Apache::londefdef::table[-1]{'rowspan'}[$in][$jn];
       if ($rowspan ne "^") {
    if (($rowspan <= 1) || ($rowspan eq '_')) {
       my $column = $jn+1;
       $output .= '\cline{'.$column.'-'.$column.'} ';
    }
       }
    }
   
       } else {
    $output.=' \\\\ '.$Apache::londefdef::table[-1]{'hinc'}.' ';
       }
  }   }
  # Note that \newline destroys alignment env's produced  by e.g. <div>   # Note that \newline destroys alignment env's produced  by e.g. <div>
  # $Apache::londefdef::table[-1]{'output'} .= $header_of_table.$Apache::londefdef::table[-1]{'hinc'}.$output.'\end{tabular}\strut\newline\strut ';   # $Apache::londefdef::table[-1]{'output'} .= $header_of_table.$Apache::londefdef::table[-1]{'hinc'}.$output.'\end{tabular}\strut\newline\strut ';
Line 2263  sub end_table { Line 2524  sub end_table {
     undef @Apache::londefdef::table;      undef @Apache::londefdef::table;
  }   }
     }      }
       }
     return $currentstring;      return $currentstring;
 }  }
   
Line 2366  sub start_td_tex { Line 2628  sub start_td_tex {
   
 sub end_td_tex {  sub end_td_tex {
     my ($parstack,$parser,$safeeval) = @_;      my ($parstack,$parser,$safeeval) = @_;
     my $current_row = $Apache::londefdef::table[-1]{'row_number'};      my $current_row    = $Apache::londefdef::table[-1]{'row_number'};
     my $data=&Apache::lonxml::endredirection();      my $current_column = $Apache::londefdef::table[-1]{'counter_columns'}; 
       my $data = &Apache::lonxml::endredirection();
   
       #  The rowspan array of the table indicates which cells are part of a span.
       #  n indicates the start of a span set of n rows.
       #  ^ indicates a cell that continues a span set.
       #  _ indicates the cell is at the bottom of a span set.
       #  If this and subsequent cells are part of a rowspan, we must
       #  push along the row until we find one that is not.
   
       while ((defined $Apache::londefdef::table[-1]{'rowspan'}[$current_row] [$current_column]) 
      && ($Apache::londefdef::table[-1]{'rowspan'}[$current_row][$current_column] =~ /[\^\_]/)) {
    # Part of a span.
    push @ {$Apache::londefdef::table[-1]{'content'}[-1]}, '';
    $current_column++;
       }
       $Apache::londefdef::table[-1]{'counter_columns'} = $current_column;
      
   
       # Get the column and row spans.
       # Colspan can be done via \multicolumn if I can figure out the data structs.
   
       my $colspan = &Apache::lonxml::get_param('colspan', $parstack, $safeeval, undef, 0);
       if (!$colspan) {
    $colspan = 1;
       }
   
       my $rowspan = &Apache::lonxml::get_param('rowspan', $parstack, $safeeval, undef, 0);
       if (!$rowspan) {
    $rowspan = 1;
       }
   
   
   
       for (my $c = 0; $c < $colspan; $c++) {
    $Apache::londefdef::table[-1]{'rowspan'}[$current_row][$current_column+$c] = $rowspan;
    for (my $i = 1; $i < $rowspan; $i++) {
       $Apache::londefdef::table[-1]{'rowspan'}[$current_row+$i][$current_column+$c] = '^';
       if ($i == ($rowspan-1)) {
    $Apache::londefdef::table[-1]{'rowspan'}[$current_row+$i][$current_column+$c] = '_';
       }
    }
       }
   
     my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);      my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
     if (defined $TeXwidth) {      if (defined $TeXwidth) {
  push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';   for (my $c = 0; $c < $colspan; $c++) {
  push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';      push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
  push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';      push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
       push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
    }
     } else {      } else {
  if (($data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) or ($data=~m/\[(\d+\.?\d*)\s*mm\]/)) {   if (($data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) or ($data=~m/\[(\d+\.?\d*)\s*mm\]/)) {
     my $garbage_data=$data;      my $garbage_data=$data;
Line 2388  sub end_td_tex { Line 2695  sub end_td_tex {
  if ($fwidth<$current_length) {$fwidth=$current_length;}   if ($fwidth<$current_length) {$fwidth=$current_length;}
  $garbage_data=~s/\[(\d+\.?\d*)\s*mm\]//;   $garbage_data=~s/\[(\d+\.?\d*)\s*mm\]//;
     }      }
     push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';      for (my $c = 0; $c < $colspan; $c++) {
     push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$fwidth;   push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
     push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';   push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$fwidth;
     push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';   push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
    push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
       }
  } elsif ($data=~/\\parbox\{\s*\d+\.?\d*\s*(mm|cm|in|pc|pt)*\s*\}/ or $data=~/\\epsfxsize\s*=\s*\d+\.?\d*\s*(mm|cm|in|pc|pt)*/) {   } elsif ($data=~/\\parbox\{\s*\d+\.?\d*\s*(mm|cm|in|pc|pt)*\s*\}/ or $data=~/\\epsfxsize\s*=\s*\d+\.?\d*\s*(mm|cm|in|pc|pt)*/) {
     my $garbage_data=$data;      my $garbage_data=$data;
     my $fwidth=0;      my $fwidth=0;
Line 2407  sub end_td_tex { Line 2716  sub end_td_tex {
  if ($fwidth<$1) {$fwidth=$1;}   if ($fwidth<$1) {$fwidth=$1;}
  $garbage_data=~s/\\epsfxsize\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)//;   $garbage_data=~s/\\epsfxsize\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)//;
     }      }
     push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';      for (my $c = 0; $c < $colspan; $c++) {
     push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$fwidth;   push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
     push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';   push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$fwidth;
     push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';   push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
    push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
       }
     $data=~s/\\\\\s*$//;       $data=~s/\\\\\s*$//; 
  } else {     } else {  
     $data=~s/^\s+(\S.*)/$1/;       $data=~s/^\s+(\S.*)/$1/; 
Line 2438  sub end_td_tex { Line 2749  sub end_td_tex {
  if ($min_length<$lengthword) {$min_length=$lengthword;}   if ($min_length<$lengthword) {$min_length=$lengthword;}
     }      }
     }      }
     push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';      for (my $c = 0; $c < $colspan; $c++) {
     push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';   push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
     push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$current_length;   push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
     push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$min_length;   push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$current_length;
    push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$min_length;
       }
  }           }        
     }      }
     # Substitute all of the tables nested in this cell in their appropriate places.      # Substitute all of the tables nested in this cell in their appropriate places.
Line 2456  sub end_td_tex { Line 2769  sub end_td_tex {
   
     }      }
     # Should be be killing off the 'include' elements as they're used up?      # Should be be killing off the 'include' elements as they're used up?
   
     push @ {$Apache::londefdef::table[-1]{'content'}[-1] },$data;      push @ {$Apache::londefdef::table[-1]{'content'}[-1] },$data;
   
   
   
   
       #  the colspan array will indicate how many columns will be spanned by this
       #  cell..this requires that counter_columns also be adjusted accordingly
       #  so that the next bunch of text goes in the right cell.  Note that since
       #  counter_columns is incremented in the start_td_tex, we adjust by colspan-1.
       #
   
       $Apache::londefdef::table[-1]{'counter_columns'} += $colspan -1;
       for (my $i = 0; $i < ($colspan -1); $i++) {
    push @ {$Apache::londefdef::table[-1]{'content'}[-1] },'';
       }
       for (my $r = 0; $r < $rowspan; $r++) {
    $Apache::londefdef::table[-1]{'colspan'}[$current_row+$r][$current_column] = $colspan;
    # Put empty text in spanned cols.
   
       }
   
   
   
     return '';      return '';
 }  }
   
Line 2630  sub start_img { Line 2966  sub start_img {
   
     if ($target eq 'web' || $target eq 'webgrade') {      if ($target eq 'web' || $target eq 'webgrade') {
  if ($env{'browser.imagesuppress'} ne 'on') {   if ($env{'browser.imagesuppress'} ne 'on') {
     $currentstring.=&Apache::lonenc::encrypt_ref($token,{'src'=>$src});      my $enc = ('yes' eq 
          lc(&Apache::lonxml::get_param('encrypturl',$parstack,
        $safeeval)));
       $currentstring.=&Apache::lonenc::encrypt_ref($token,{'src'=>$src},
    $enc);
  } else {   } else {
     my $alttag= &Apache::lonxml::get_param      my $alttag = &Apache::lonxml::get_param('alt',$parstack,$safeeval,
  ('alt',$parstack,$safeeval,undef,1);      undef,1);
     unless ($alttag) {      if (!$alttag) {
  $alttag=&Apache::lonmeta::alttag   $alttag = &Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],
     ($Apache::lonxml::pwd[-1],$src);     $src);
     }      }
     $currentstring.='[IMAGE: '.$alttag.']';      $currentstring.='[IMAGE: '.$alttag.']';
  }   }
Line 2655  sub start_img { Line 2995  sub start_img {
   $safeeval,    $safeeval,
   undef,1));    undef,1));
  if(!$align) {   if(!$align) {
     # disabled for now see BUG#4535  
     if (&is_inside_of($tagstack, "table")) {  
  $align = "top";      # Force top of image to top of table cell   
     } else {  
  $align = "bottom"; # This is html's default so it's ours too.   $align = "bottom"; # This is html's default so it's ours too.
     }  
  }   }
  #   #
  &Apache::lonxml::debug("Alignemnt = $align");   &Apache::lonxml::debug("Alignemnt = $align");
Line 2675  sub start_img { Line 3010  sub start_img {
     $parstack,      $parstack,
     $safeeval,      $safeeval,
     undef,0);      undef,0);
  &Apache::lonxml::debug("LaTeX rendering = $latex_rendering");   # &Apache::lonxml::debug("LaTeX rendering = $latex_rendering");
  if(!$latex_rendering) {   if(!$latex_rendering) {
     $latex_rendering = "texwrap";   $latex_rendering = "texwrap";
    }
    # using texwrap inside a table does not work. So, if after all of this,
    # texwrap is on, we turn it off if we detect we're in a table:
    #
    if (($latex_rendering eq 'texwrap') && &is_inside_of($tagstack, "table")) {
       $latex_rendering = 'parpic';
  }   }
  &Apache::lonxml::debug("LaTeX rendering = $latex_rendering image file: $src");  
   
  #if original gif/jpg/png file exist do following:   # &Apache::lonxml::debug("LaTeX rendering = $latex_rendering image file: $src");
   
    #if original bmp/gif/jpg/png file exist do following:
  my $origsrc=$src;   my $origsrc=$src;
  my ($path,$file) = &get_eps_image($src);   my ($path,$file) = &get_eps_image($src);
    # &Apache::lonnet::logthis("Image source: $src result: $path $file");
  $src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src);   $src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src);
  &Apache::lonxml::debug("path = $path file = $file src = $src");   &Apache::lonxml::debug("path = $path file = $file src = $src");
  if (-e $src) {   if (-e $src) {
     &Apache::lonxml::debug("$src exists");      &Apache::lonxml::debug("$src exists");
     my ($height_param,$width_param)=      my ($height_param,$width_param)=
  &image_size($origsrc,0.3,$parstack,$safeeval);   &image_size($origsrc,0.3,$parstack,$safeeval);
     my $destpath = $path;  
     $destpath    =~ s/ /\_/g; # Spaces in path cause LaTex to vomit.  
     my $destfile = $file;  
     $destfile    =~ s/ /\_/g;  
     my $size;      my $size;
     if ($width_param)  { $size.='width='.$width_param.' mm,'; }      if ($width_param)  { $size.='width='.$width_param.' mm,'; }
     if ($height_param) { $size.='height='.$height_param.' mm]'; }      if ($height_param) { $size.='height='.$height_param.' mm]'; }
       # Default size if not able to extract that (e.g. eps image).
       
       # &Apache::lonnet::logthis("Size = $size");
       
     $size='['.$size;      $size='['.$size;
     $size=~s/,$/]/;       $size=~s/,$/]/; 
     $currentstring .= '\graphicspath{{'.$destpath.'}}'      $currentstring .= '\graphicspath{{'.$path.'}}'
  .'\includegraphics'.$size.'{'.$destfile.'} ';   .'\includegraphics'.$size.'{'.$file.'} ';
       my $closure;
     #    If there's an alignment specification we need to honor it here.      ($currentstring, $closure) = &align_latex_image($align, 
     #    For the horizontal alignments, we will also honor the      $latex_rendering, 
     #    value of the latex specfication.  The default is parbox,      $currentstring, 
     #    and that's used for illegal values too.        $width_param, 
     #          $height_param);
     #    Even though we set a default alignment value, the user      $currentstring .= $closure;
     #    could have given us an illegal value.  In that case we  
     #    just use the default alignment of bottom..  
     if      ($align eq "top")    {  
  $currentstring = '\raisebox{-'.$height_param.'mm}{'.$currentstring.'}';  
     } elsif (($align eq "center") || ($align eq "middle")) { # Being kind  
  my $offset = $height_param/2;  
  $currentstring = '\raisebox{-'.$offset.'mm}{'.$currentstring.'}';  
     } elsif ($align eq "left")   {   
  if ($latex_rendering eq "parpic") {   
     $currentstring = '\parpic[l]{'.$currentstring.'}';  
  } else {                                     # wrapfig render  
     $currentstring = '\begin{wrapfigure}{l}{'.$width_param.'mm}'  
  .'\scalebox{1.0}{'.$currentstring.'}\end{wrapfigure}';  
  }  
     } elsif ($align eq "right")  {     
  if ($latex_rendering eq "parpic") {  
     $currentstring = '\parpic[r]{'.$currentstring.'}';  
  } else {                                 # wrapfig rendering  
     $currentstring = '\begin{wrapfigure}{r}{'.$width_param.'mm}'  
  .'\scalebox{1.0}{'.$currentstring.'}\end{wrapfigure}';  
   
  }  
     } else { # Bottom is also default.  
  # $currentstring = '\raisebox{'.$height_param.'mm}{'.$currentstring.'}';  
     }  
  } else {   } else {
     &Apache::lonxml::debug("$src does not exist");      &Apache::lonxml::debug("$src does not exist");
     #original image file doesn't exist so check the alt attribute      #original image file doesn't exist so check the alt attribute
Line 2748  sub start_img { Line 3067  sub start_img {
  # And here's where the semi-quote breaks down: allow the user   # And here's where the semi-quote breaks down: allow the user
         # to edit the beast as well by rendering the problem for edit:          # to edit the beast as well by rendering the problem for edit:
     } elsif ($target eq 'edit') {      } elsif ($target eq 'edit') {
           my $only = join(',',&Apache::loncommon::filecategorytypes('Pictures'));
  $currentstring .=&Apache::edit::tag_start($target,$token);   $currentstring .=&Apache::edit::tag_start($target,$token);
  $currentstring .=&Apache::edit::text_arg('Image Url:','src',$token,70).   $currentstring .=&Apache::edit::text_arg('Image Url:','src',$token,70).
     &Apache::edit::browse('src',undef,'alt').' '.      &Apache::edit::browse('src',undef,'alt',$only).' '.
     &Apache::edit::search('src',undef,'alt').'<br />';      &Apache::edit::search('src',undef,'alt').'<br />';
  $currentstring .=&Apache::edit::text_arg('Description:','alt',$token,70).'<br />';   $currentstring .=&Apache::edit::text_arg('Description:','alt',$token,70).'<br />';
  $currentstring .=&Apache::edit::text_arg('width (pixel):','width',$token,5);   $currentstring .=&Apache::edit::text_arg('width (pixel):','width',$token,5);
Line 2760  sub start_img { Line 3080  sub start_img {
  $currentstring .=&Apache::edit::select_arg('Alignment:','align',   $currentstring .=&Apache::edit::select_arg('Alignment:','align',
    ['','bottom','middle','top','left','right'],$token,5);     ['','bottom','middle','top','left','right'],$token,5);
  $currentstring .=&Apache::edit::select_arg('TeXwrap:', 'TeXwrap',   $currentstring .=&Apache::edit::select_arg('TeXwrap:', 'TeXwrap',
    ['', 'parbox', 'parpic'], $token, 2);     ['', 'none','parbox', 'parpic', 'wrapfigure'], $token, 2);
    $currentstring .=&Apache::edit::select_arg('Encrypt URL:','encrypturl',
      ['no','yes'], $token, 2);
  $currentstring .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();   $currentstring .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
  my $src=    &Apache::lonxml::get_param('src',$parstack,$safeeval);   my $src=    &Apache::lonxml::get_param('src',$parstack,$safeeval);
  my $alt=    &Apache::lonxml::get_param('alt',$parstack,$safeeval);   my $alt=    &Apache::lonxml::get_param('alt',$parstack,$safeeval);
  my $width=  &Apache::lonxml::get_param('width',$parstack,$safeeval);   my $width=  &Apache::lonxml::get_param('width',$parstack,$safeeval);
  my $height= &Apache::lonxml::get_param('height',$parstack,$safeeval);   my $height= &Apache::lonxml::get_param('height',$parstack,$safeeval);
   
           if ($token->[2]{'src'}=~/\$/) {
  $currentstring .= '<img src="'.$src.'" alt="'.$alt.'" ';             $currentstring.='Variable image source';
  if ($width) { $currentstring.=' width="'.$width.'" '; }          } else {
  if ($height) { $currentstring.=' height="'.$height.'" '; }     $currentstring .= '<img src="'.$src.'" alt="'.$alt.'" ';
  $currentstring .= ' />';     if ($width) { $currentstring.=' width="'.$width.'" '; }
      if ($height) { $currentstring.=' height="'.$height.'" '; }
      $currentstring .= ' />';
           }
     } elsif ($target eq 'modified') {      } elsif ($target eq 'modified') {
  my ($osrc,$owidth,$oheight)=   my ($osrc,$owidth,$oheight)=
     ($token->[2]{'src'},$token->[2]{'width'},$token->[2]{'height'});      ($token->[2]{'src'},$token->[2]{'width'},$token->[2]{'height'});
  my $ctag=&Apache::edit::get_new_args($token,$parstack,   my $ctag=&Apache::edit::get_new_args($token,$parstack,
      $safeeval,'src','alt','align',       $safeeval,'src','alt','align',
      'TeXwidth','TeXheight', 'TeXwrap',       'TeXwidth','TeXheight', 'TeXwrap',
      'width','height');       'width','height','encrypturl');
  my ($nsrc,$nwidth,$nheight)=   my ($nsrc,$nwidth,$nheight)=
     ($token->[2]{'src'},$token->[2]{'width'},$token->[2]{'height'});      ($token->[2]{'src'},$token->[2]{'width'},$token->[2]{'height'});
  my $loc=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$nsrc);   my $loc=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$nsrc);
Line 2854  sub start_applet { Line 3179  sub start_applet {
     $currentstring='[APPLET: '.$alttag.']';      $currentstring='[APPLET: '.$alttag.']';
  }   }
     } elsif ($target eq 'tex') {      } elsif ($target eq 'tex') {
    # Turn off some stuff we can't be inside thank you LaTeX
   
   
    my $restart_sub = 0;
    my $restart_sup = 0;
   
    # Since <sub> and <sup> are simple tags it's ok to turn off/on
    # using the start_ stop_ functions.. those tags only care about
    # $target.
   
    if (&is_inside_of($tagstack, "sub")) {
       $restart_sub = 1;
       $currentstring .= &end_sub($target, $token, $tagstack, 
          $parstack, $parser, $safeeval);
    }
    if (&is_inside_of($tagstack, "sup")) {
       $restart_sup = 1;
       $currentstring .= &end_sup($target, $token, $tagstack,
          $parstack, $parser, $safeeval);
    }
   
    # Now process the applet; just replace it with its alt attribute.
   
  my $alttag= &Apache::lonxml::get_param('alt',$parstack,   my $alttag= &Apache::lonxml::get_param('alt',$parstack,
        $safeeval,undef,1);         $safeeval,undef,1);
  unless ($alttag) {   unless ($alttag) {
Line 2864  sub start_applet { Line 3212  sub start_applet {
  }   }
  $currentstring.='\begin{center} \fbox{Java Applet: '.$alttag.   $currentstring.='\begin{center} \fbox{Java Applet: '.$alttag.
     '.}\end{center}';      '.}\end{center}';
   
    # Turn stuff back on that we can't be inside of.
   
    if ($restart_sub) {
       $currentstring .= &start_sub($target, $token, $tagstack,
    $parstack, $parser, $safeeval);
    }
    if ($restart_sup) {
       $currentstring .= &start_sup($target, $token, $tagstack,
    $parstack, $parser, $safeeval);
    }
     }       } 
     return $currentstring;      return $currentstring;
 }  }
Line 2981  sub start_frameset { Line 3340  sub start_frameset {
     my ($target,$token) = @_;      my ($target,$token) = @_;
     my $currentstring = ''; # Close any pending para.      my $currentstring = ''; # Close any pending para.
     if ($target eq 'web' || $target eq 'webgrade') {       if ($target eq 'web' || $target eq 'webgrade') { 
  if (!$Apache::lonxml::registered &&   $currentstring = 
     $env{'request.state'} eq 'published') {      &Apache::loncommon::start_page($Apache::londefdef::title,
     $currentstring.='<head>'.     $Apache::londefdef::head,
  &Apache::lonmenu::registerurl(undef,$target).'</head>';     {'add_entries'    => $token->[2],
  }      'no_title'       => 1,
  my $onLoad='';      'force_register' => 1,
  foreach my $key (keys(%{$token->[2]})) {      'frameset'       => 1,});
     if ($key =~ /^onload$/i) {  
  $onLoad.=$token->[2]->{$key}.';';  
  delete($token->[2]->{$key});  
     }  
  }  
  $token->[2]->{'onload'}=&Apache::lonmenu::loadevents().';'.$onLoad;  
  my $onUnload='';  
  foreach my $key (keys(%{$token->[2]})) {  
     if ($key =~ /^onunload$/i) {  
  $onUnload.=$token->[2]->{$key}.';';  
  delete($token->[2]->{$key});  
     }  
  }  
  $token->[2]->{'onunload'}=&Apache::lonmenu::unloadevents().  
     ';'.$onUnload;  
   
  $currentstring .= '<'.$token->[1];  
  foreach (keys %{$token->[2]}) {  
     $currentstring.=' '.$_.'="'.$token->[2]->{$_}.'"';  
  }  
  $currentstring.='>';  
     }      }
     return $currentstring;      return $currentstring;
 }  }
Line 3053  sub start_pre { Line 3392  sub start_pre {
  $currentstring .= $token->[4];   $currentstring .= $token->[4];
     } elsif ($target eq 'tex') {      } elsif ($target eq 'tex') {
  $currentstring .= '\begin{verbatim}';   $currentstring .= '\begin{verbatim}';
    &Apache::lonxml::disable_LaTeX_substitutions();
     }       } 
     return $currentstring;      return $currentstring;
 }  }
Line 3064  sub end_pre { Line 3404  sub end_pre {
  $currentstring .= $token->[2];   $currentstring .= $token->[2];
     } elsif ($target eq 'tex') {      } elsif ($target eq 'tex') {
  $currentstring .= '\end{verbatim}';   $currentstring .= '\end{verbatim}';
    &Apache::lonxml::enable_LaTeX_substitutions();
     }      }
     return $currentstring;      return $currentstring;
 }  }
Line 3268  sub start_blockquote { Line 3609  sub start_blockquote {
     if ($target eq 'web' || $target eq 'webgrade') {      if ($target eq 'web' || $target eq 'webgrade') {
  $currentstring .= $token->[4];        $currentstring .= $token->[4];     
     }       } 
       if ($target eq 'tex') {
    $currentstring .= '\begin{quote}';
       }
     return $currentstring;      return $currentstring;
 }  }
   
Line 3277  sub end_blockquote { Line 3621  sub end_blockquote {
     if ($target eq 'web' || $target eq 'webgrade') {      if ($target eq 'web' || $target eq 'webgrade') {
  $currentstring = $token->[2];       $currentstring = $token->[2];    
     }       } 
       if ($target eq 'tex') {
    $currentstring = '\end{quote}';
       }
     return $currentstring;      return $currentstring;
 }  }
   
Line 3550  sub end_legend { Line 3897  sub end_legend {
 sub start_link {  sub start_link {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;      my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
     my $currentstring = '';      my $currentstring = '';
     if ($target eq 'web') {      if ($target eq 'web' || $target eq 'webgrade') {
  my $href=&Apache::lonxml::get_param('href',$parstack,$safeeval,   my $href=&Apache::lonxml::get_param('href',$parstack,$safeeval,
     undef,1);      undef,1);
  &Apache::lonxml::extlink($href);   &Apache::lonxml::extlink($href);
Line 4077  sub get_eps_image { Line 4424  sub get_eps_image {
  &Apache::lonnet::repcopy($orig_src); # Failure is not completely fatal.   &Apache::lonnet::repcopy($orig_src); # Failure is not completely fatal.
     }      }
     &Apache::lonxml::debug("get_eps_image: Original image: $orig_src");      &Apache::lonxml::debug("get_eps_image: Original image: $orig_src");
     my ($spath, $sname, $sext) = fileparse($src, qr/\.(gif|png|jpg|jpeg)/i);      my ($spath, $sname, $sext) = &fileparse($src, qr/\.(bmp|gif|png|jpg|jpeg)/i);
     $src=~s/\.(gif|png|jpg|jpeg)$/\.eps/i;      $src=~s/\.(bmp|gif|png|jpg|jpeg)$/\.eps/i;
     $src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src);      $src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src);
     &Apache::lonxml::debug("Filelocation gives: $src");      &Apache::lonxml::debug("Filelocation gives: $src");
     if (! -e $src) {      if (! -e $src) {
Line 4102  sub get_eps_image { Line 4449  sub get_eps_image {
  my $newsrc=$orig_src;   my $newsrc=$orig_src;
  $newsrc =~ s|(.*)/res/|/home/httpd/html/res/|;   $newsrc =~ s|(.*)/res/|/home/httpd/html/res/|;
  &Apache::lonxml::debug("queueing $newsrc for dynamic eps production.");   &Apache::lonxml::debug("queueing $newsrc for dynamic eps production.");
  print FILE "$newsrc\n";   print FILE ("$newsrc\n");
  close FILE;   close(FILE);
  $src=~s|/home/httpd/html/res|/home/httpd/prtspool|;   $src=~s|/home/httpd/html/res|/home/httpd/prtspool|;
  $src=~s|/home/([^/]*)/public_html/|/home/httpd/prtspool/$1/|;   $src=~s|/home/([^/]*)/public_html/|/home/httpd/prtspool/$1/|;
  if ($sext ne "") { # Put the ext. back in to uniquify.   if ($sext ne "") { # Put the ext. back in to uniquify.
     $src =~ s/\.eps$/$sext.eps/;      $src =~ s/\.eps$/$sext.eps/;
  }   }
   
     }      }
   
  }   }
       } else {
    # If the postscript file has spaces in its name,
    # LaTeX will gratuitiously vomit.  Therefore
    # queue such files for copy with " " replaced by "_".
    # printout.pm will know them by their .ps  or .eps extensions.
    my $newsrc = $orig_src;
    $newsrc    =~  s|(.*)/res/|/home/httpd/html/res/|;
    open(FILE,">>/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.dat");
    print FILE "$src\n";
    close FILE;
    $src=~s|/home/httpd/html/res|/home/httpd/prtspool|;
    $src=~s|/home/([^/]*)/public_html/|/home/httpd/prtspool/$1/|;
     }      }
     my ($path,$file)=($src=~m|(.*)/([^/]*)$|);      my ($path,$file)=($src=~m|(.*)/([^/]*)$|);
       $path =~ s/ /\_/g;
       $file =~ s/ /\_/g;
     &Apache::lonxml::debug("get_eps_image returning: $path / $file<BR />");      &Apache::lonxml::debug("get_eps_image returning: $path / $file<BR />");
     return ($path.'/',$file);      return ($path.'/',$file);
 }  }
Line 4123  sub eps_generation { Line 4486  sub eps_generation {
     my $temp_file = Apache::File->new('>>'.$filename);       my $temp_file = Apache::File->new('>>'.$filename); 
     print $temp_file "$src\n";      print $temp_file "$src\n";
     my $newsrc = $src;      my $newsrc = $src;
     $newsrc =~ s/(\.gif|\.jpg|\.jpeg)$/\.eps/i;      $newsrc =~ s/(\.bmp|\.gif|\.jpg|\.jpeg)$/\.eps/i;
     $newsrc=~s/\/home\/httpd\/html\/res//;      $newsrc=~s{/home/httpd/html/res}{};
     $newsrc=~s/\/home\/([^\/]*)\/public_html\//\/$1\//;      $newsrc=~s{/home/($LONCAPA::username_re)/public_html/}{/$1/};
     $newsrc=~s/\/\.\//\//;      $newsrc=~s{/\./}{/};
     $newsrc=~s/\/([^\/]+)\.(ps|eps)/\//;      $newsrc=~s{/([^/]+)\.(ps|eps)}{/};
     if ($newsrc=~/\/home\/httpd\/lonUsers\//) {      if ($newsrc=~m{/home/httpd/lonUsers/}) {
  $newsrc=~s/\/home\/httpd\/lonUsers//;   $newsrc=~s{/home/httpd/lonUsers}{};
  $newsrc=~s/\/([^\/]+)\/(\w)\/(\w)\/(\w)\//\/$1\//;   $newsrc=~s{/($LONCAPA::domain_re)/./././}{/$1/};
     }      }
     if ($newsrc=~/\/userfiles\//) {      if ($newsrc=~m{/userfiles/}) {
  return ' \graphicspath{{'.$newsrc.'}}\includegraphics[width='.$width_param.' mm]{'.$file.'} ';   return ' \graphicspath{{'.$newsrc.'}}\includegraphics[width='.$width_param.' mm]{'.$file.'} ';
     } else {      } else {
  return ' \graphicspath{{/home/httpd/prtspool'.$newsrc.'}}\includegraphics[width='.$width_param.' mm]{'.$file.'} ';   return ' \graphicspath{{/home/httpd/prtspool'.$newsrc.'}}\includegraphics[width='.$width_param.' mm]{'.$file.'} ';
Line 4196  sub LATEX_length { Line 4559  sub LATEX_length {
     return $value;      return $value;
 }  }
   
   #   Wrap image 'stuff' inside of the LaTeX required to implement 
   #   alignment:
   #     align_tex_image(align, latex_rendering, image)
   #   Where:
   #     align   - The HTML alignment specification.
   #     latex_rendering - rendering hint for latex.
   #     image   - The LaTeX needed to insert the image itsef.
   #     width,height - dimensions of the image.
   # Returns:
   #    The 1/2 wrapped image and the stuff required to close the
   #    wrappage.  This allows e.g. randomlabel to insert more stuff
   #    into the closure.
   #
   sub align_latex_image {
       my ($align, $latex_rendering, $image, $width, $height) = @_;
       my $currentstring;        # The 1/2 wrapped image.
       my $closure;              # The closure of the wrappage.
   
       # if it's none just return it back
       if ($latex_rendering eq 'none') {
    return ($image,'');
       }
   
       #    If there's an alignment specification we need to honor it here.
       #    For the horizontal alignments, we will also honor the
       #    value of the latex specfication.  The default is parbox,
       #    and that's used for illegal values too.  
       #    
       #    Even though we set a default alignment value, the user
       #    could have given us an illegal value.  In that case we
       #    just use the default alignment of bottom..
       $currentstring = "\n% figurewrapping \n";
       if      ($align eq "top")    {
    $currentstring .= '\raisebox{-'.$height.'mm}{'.$image;
    $closure = '}';
       } elsif (($align eq "center") || ($align eq "middle")) { # Being kind
    my $offset = $height/2;
    $currentstring .= '\raisebox{-'.$offset.'mm}{'.$image;
    $closure       = '}';
       } elsif ($align eq "left")   { 
    if ($latex_rendering eq "parpic") { 
       $currentstring .= '\parpic[l]{'.$image;
       $closure       = '}';
    } elsif ($latex_rendering eq "parbox") {
       $currentstring .= '\begin{minipage}[l]{'.$width.'mm}'
    .$image;
       $closure = '\end{minipage}';
    } elsif ($latex_rendering eq "wrapfigure"
    || $latex_rendering ne 'none') {  # wrapfig render
       $currentstring .= 
    '\begin{wrapfigure}{l}{'.$width.'mm}'
    .'\scalebox{1.0}{'.$image;
       $closure = '}\end{wrapfigure}';
    }
       } elsif ($align eq "right")  {   
    if ($latex_rendering eq "parpic") {
       $currentstring .= '\parpic[r]{'.$image;
       $closure = '}';
    } elsif ($latex_rendering eq "parbox") {
       $currentstring .=  '\begin{minipage}[r]{'.$width.'mm}'
    .$image;
       $closure = '\end{minipage}';
    } elsif ($latex_rendering eq "wrapfigure"
    || $latex_rendering ne 'none') {  # wrapfig render
       $currentstring .= 
    '\begin{wrapfigure}{r}{'.$width.'mm}'
    .'\scalebox{1.0}{'.$image;
       $closure = '}\end{wrapfigure}';
    }
       } else { # Bottom is also default.
    # $currentstring = '\raisebox{'.$height.'mm}{'.$image.'}';
    $currentstring .= "{$image";
    $closure       = '}';
       }
       $currentstring .= "\n% end wrappage\n";
       $closure        = "\n% Begin closure\n".$closure."\n% End closure\n";
       return ($currentstring, $closure);
   }
   
 # is_inside_of $tagstack $tag  # is_inside_of $tagstack $tag
 #    This sub returns true if the current state of Xml processing  #    This sub returns true if the current state of Xml processing
Removed from v.1.302.2.4  
changed lines
  Added in v.1.392

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