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Diff for /loncom/xml/londefdef.pm between versions 1.451 and 1.465

version 1.451, 2014/05/15 20:19:06 version 1.465, 2020/09/10 00:28:48
Line 92  sub start_m { Line 92  sub start_m {
     my $inside = &Apache::lonxml::get_all_text_unbalanced("/m",$parser);      my $inside = &Apache::lonxml::get_all_text_unbalanced("/m",$parser);
     if ($target eq 'web' || $target eq 'analyze') {      if ($target eq 'web' || $target eq 'analyze') {
  &Apache::lonxml::debug("M is starting with:$inside:");   &Apache::lonxml::debug("M is starting with:$inside:");
           if (!($inside =~ /^\s*\$.*\$\s*$/ || $inside =~ /^\s*\\[([].*\\[)\]]\s*$/)) {
               # Non-math LaTeX will not be rendered correctly with MathJax
               # and it should be avoided anyway.
               # On top of that, MathJax will render math without $, but
               # it will fail with tth. This is worth a warning.
               # (even though some people might just use latex for printing)
               &Apache::lonxml::warning(&mt('Missing $ in [_1].','<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]);
Line 589  sub start_body { Line 597  sub start_body {
                     'force_register' => 1,};                      'force_register' => 1,};
         if ($target eq 'web') {          if ($target eq 'web') {
             $args->{'print_suppress'} = 1;              $args->{'print_suppress'} = 1;
               if ($env{'request.use_absolute'}) {
                   $args->{'use_absolute'} = $env{'request.use_absolute'};
               }
         }          }
  $currentstring =    $currentstring = 
     &Apache::loncommon::start_page($Apache::londefdef::title,      &Apache::loncommon::start_page($Apache::londefdef::title,
Line 635  sub edit_controls { Line 646  sub edit_controls {
     }      }
     $result .= '      $result .= '
 <div><input type="submit" name="editmode" accesskey="e" value="'.&mt('Edit').'" />';  <div><input type="submit" name="editmode" accesskey="e" value="'.&mt('Edit').'" />';
       if ($env{'browser.type'} ne 'explorer' || $env{'browser.version'} > 9) {
           my $uri = $env{'request.uri'};
           my $daxeurl = '/daxepage'.$uri;
           $result .= '<input type="button" value="'.&mt('Edit with Daxe').'" '.
                     'onclick="window.open(\''.$daxeurl.'\',\'_blank\');" />';
       }
     if (($env{'request.course.id'}) && ($env{'form.forceedit'})) {      if (($env{'request.course.id'}) && ($env{'form.forceedit'})) {
         my $url=&Apache::lonnet::hreflocation('',$env{'request.filename'});          my $url=&Apache::lonnet::hreflocation('',$env{'request.filename'});
         if ($url =~ /\.html?$/i) {          if ($url =~ /\.html?$/i) {
Line 809  sub end_h1 { Line 826  sub end_h1 {
  $currentstring .= $token->[2];   $currentstring .= $token->[2];
     } elsif ($target eq 'tex') {      } elsif ($target eq 'tex') {
  my $post='\vskip 0 mm ';   my $post='\vskip 0 mm ';
  my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);   my $align=lc(&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1));
  if ($align eq 'center') {   if ($align eq 'center') {
     $post='\end{center}';      $post='\end{center}';
  } elsif ($align eq 'left') {   } elsif ($align eq 'left') {
Line 1288  sub start_p { Line 1305  sub start_p {
   
  $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 (!defined $align) {
             # check inline CSS
             $align = &get_css_property('text-align',$parstack,$safeeval);
           }
  if ($align eq 'center') {   if ($align eq 'center') {
     $currentstring .='\begin{center}\par ';      $currentstring .='\begin{center}\par ';
     $closing_string = '\end{center}';      $closing_string = '\end{center}';
Line 1295  sub start_p { Line 1316  sub start_p {
  $currentstring = &center_correction().$currentstring;   $currentstring = &center_correction().$currentstring;
     }      }
  } elsif ($align eq 'right') {   } elsif ($align eq 'right') {
     $currentstring.="\n".'{\flushright ';      $currentstring.="\n".'\begin{flushright}';
 #    $currentstring.='\makebox['.$env{'form.textwidth'}.']{\hfill\llap{';  #    $currentstring.='\makebox['.$env{'form.textwidth'}.']{\hfill\llap{';
     $closing_string= "}\n";      $closing_string= '\end{flushright}'."\n";
  } elsif ($align eq 'left') {   } elsif ($align eq 'left') {
     $currentstring.= "\n".'{\flushleft ';      $currentstring.= "\n".'\begin{flushleft}';
 #    $currentstring.='\noindent\makebox['.$env{'form.textwidth'}.']{{';  #    $currentstring.='\noindent\makebox['.$env{'form.textwidth'}.']{{';
     $closing_string = "}\n";      $closing_string = '\end{flushleft}'."\n";
  } else {   } else {
             $currentstring.='\par ';              $currentstring.='\par ';
     if (&is_inside_of($tagstack, 'table')) {      if (&is_inside_of($tagstack, 'table')) {
Line 1732  sub start_a { Line 1753  sub start_a {
                         } elsif ($env{'request.course.id'}) {                          } elsif ($env{'request.course.id'}) {
                             my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};                              my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
                             my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};                              my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
                             if ($linkurl =~ m{^([^/]|/uploaded/$cdom/$cnum/docs/)}) {                              if ($linkurl =~ m{^([^/]|/uploaded/$cdom/$cnum/(docs|supplemental)/)}) {
                                 my $cleanhref = &clean_docs_httpref($linkurl,$url,$cdom,$cnum);                                  my $cleanhref = &clean_docs_httpref($linkurl,$url,$cdom,$cnum);
                                 if ($cleanhref) {                                  if ($cleanhref) {
                                     &Apache::lonxml::extlink($cleanhref);                                      &Apache::lonxml::extlink($cleanhref);
Line 2060  sub end_dt { Line 2081  sub end_dt {
   
 sub item_cleanup {  sub item_cleanup {
     my $item=&Apache::lonxml::endredirection();      my $item=&Apache::lonxml::endredirection();
     $item=~s/\\begin{center}//g;      $item=~s/\\begin\{center}//g;
     $item=~s/\\end{center}//g;      $item=~s/\\end\{center}//g;
     return $item;      return $item;
 }  }
   
Line 2750  sub start_img { Line 2771  sub start_img {
  my $inside = &Apache::lonxml::get_all_text("/img",$parser,$style);   my $inside = &Apache::lonxml::get_all_text("/img",$parser,$style);
  return '';   return '';
     }      }
     &Apache::lonxml::extlink($src);      unless ($src =~ m{^data\:image/gif;base64,}) {
           &Apache::lonxml::extlink($src);
       }
     my $currentstring = '';      my $currentstring = '';
     my $scaling = .3;      my $scaling = .3;
   
Line 2760  sub start_img { Line 2783  sub start_img {
         my $enc = ('yes' eq           my $enc = ('yes' eq 
                    lc(&Apache::lonxml::get_param('encrypturl',$parstack,                     lc(&Apache::lonxml::get_param('encrypturl',$parstack,
                       $safeeval)));                        $safeeval)));
         $currentstring.=&Apache::lonenc::encrypt_ref($token,{'src'=>$src},          unless ($src =~ m{^data\:image/gif;base64,}) {
                          $enc);              $currentstring.=&Apache::lonenc::encrypt_ref($token,{'src'=>$src},
                               $enc);
           }
   
     # and render unto TeX that which is LaTeX      # and render unto TeX that which is LaTeX
     } elsif ($target eq 'tex') {      } elsif ($target eq 'tex') {
Line 2804  sub start_img { Line 2829  sub start_img {
   
  # &Apache::lonxml::debug("LaTeX rendering = $latex_rendering image file: $src");   # &Apache::lonxml::debug("LaTeX rendering = $latex_rendering image file: $src");
   
  #if original bmp/gif/jpg/png file exist do following:   #if original bmp/gif/jpg/png/svg 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");   # &Apache::lonnet::logthis("Image source: $src result: $path $file");
Line 2851  sub start_img { Line 2876  sub start_img {
         my $only = join(',',&Apache::loncommon::filecategorytypes('Pictures'));          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',$only).' '.                           &Apache::edit::browse_or_search('src',undef,'alt',$only,undef,1).
     &Apache::edit::search('src',undef,'alt').'<br />';                           '<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);
  $currentstring .=&Apache::edit::text_arg('height (pixel):','height',$token,5).'<br />';   $currentstring .=&Apache::edit::text_arg('height (pixel):','height',$token,5).'<br />';
Line 2874  sub start_img { Line 2899  sub start_img {
  my $src=    &Apache::lonxml::get_param('src',$parstack,$safeeval);   my $src=    &Apache::lonxml::get_param('src',$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);
           my $element = &Apache::edit::get_element('src'); 
           my $text;
         if ($token->[2]{'src'}=~/\$/) {          if ($token->[2]{'src'}=~/\$/) {
            $currentstring.=&mt('Variable image source');             $text = &mt('Variable image source');
         } elsif ($token->[2]{'src'}=~/\S/) {          } elsif ($token->[2]{'src'}=~/\S/) {
    $currentstring .= '<img src="'.$src.'" alt="'.$alt.'" ';     $currentstring .= '<img src="'.$src.'" alt="'.$alt.'" ';
    if ($width) { $currentstring.=' width="'.$width.'" '; }     if ($width) { $currentstring.=' width="'.$width.'" '; }
    if ($height) { $currentstring.=' height="'.$height.'" '; }     if ($height) { $currentstring.=' height="'.$height.'" '; }
    $currentstring .= ' />';     $currentstring .= ' id="previewimg_'.$element.'" />';
         } else {          } else {
            $currentstring.=&mt("No image source specified");             $text = &mt("No image source specified");
         }          }
           $currentstring .= ' <span id="showimg_'.$element.'">'.$text.'</span>';
     } elsif ($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'});
Line 3443  sub start_caption { Line 3470  sub start_caption {
     my $currentstring = '';      my $currentstring = '';
     if ($target eq 'web' || $target eq 'webgrade') {      if ($target eq 'web' || $target eq 'webgrade') {
  $currentstring = $token->[4];        $currentstring = $token->[4];     
     }       }
     return $currentstring;      return $currentstring;
 }  }
   
Line 3451  sub end_caption { Line 3478  sub end_caption {
     my ($target,$token) = @_;      my ($target,$token) = @_;
     my $currentstring = '';      my $currentstring = '';
     if ($target eq 'web' || $target eq 'webgrade') {      if ($target eq 'web' || $target eq 'webgrade') {
  $currentstring = $token->[2];       $currentstring = $token->[2];
     }       } 
     return $currentstring;      return $currentstring;
 }  }
Line 4030  sub end_spacer { Line 4057  sub end_spacer {
     return $currentstring;      return $currentstring;
 }  }
   
   my @span_end_stack; # for span tex target
   
 #-- <span> tag (end tag required)  #-- <span> tag (end tag required)
 sub start_span {  sub start_span {
     my ($target,$token) = @_;      my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
     my $currentstring = '';      my $currentstring = '';
     if ($target eq 'web' || $target eq 'webgrade') {      if ($target eq 'web' || $target eq 'webgrade') {
  $currentstring = $token->[4];        $currentstring = $token->[4];     
     }       } elsif ($target eq 'tex') {
           my $endstring = '';
           my $family = &get_css_property('font-family',$parstack,$safeeval);
           if ($family eq 'monospace') {
               $currentstring .= '\texttt{';
               $endstring .= '}';
           }
           my $weight = &get_css_property('font-weight',$parstack,$safeeval);
           if ($weight eq 'bold') {
               $currentstring .= '\textbf{';
               $endstring .= '}';
           }
           my $style = &get_css_property('font-style',$parstack,$safeeval);
           if ($style eq 'italic') {
               $currentstring .= '\textit{';
               $endstring .= '}';
           }
           push(@span_end_stack, $endstring);
       }
     return $currentstring;      return $currentstring;
 }  }
   
Line 4045  sub end_span { Line 4092  sub end_span {
     my $currentstring = '';      my $currentstring = '';
     if ($target eq 'web' || $target eq 'webgrade') {      if ($target eq 'web' || $target eq 'webgrade') {
  $currentstring = $token->[2];       $currentstring = $token->[2];    
     }       } elsif ($target eq 'tex') {
           my $endstring = pop @span_end_stack;
           $currentstring .= $endstring;
       }
     return $currentstring;      return $currentstring;
 }  }
   
Line 4318  sub get_eps_image { Line 4368  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/\.(bmp|gif|png|jpg|jpeg)/i);      my ($spath, $sname, $sext) = &fileparse($src, qr/\.(bmp|gif|png|jpg|jpeg|svg)/i);
     $src=~s/\.(bmp|gif|png|jpg|jpeg)$/\.eps/i;      $src=~s/\.(bmp|gif|png|jpg|jpeg|svg)$/\.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 4433  sub LATEX_length { Line 4483  sub LATEX_length {
     $garbage=~s/^\s+(\S.*)/$1/;#space before       $garbage=~s/^\s+(\S.*)/$1/;#space before 
     $garbage=~s/(.*\S)\s+$/$1/;#space after       $garbage=~s/(.*\S)\s+$/$1/;#space after 
     $garbage=~s/(\s)+/$1/;#only one space      $garbage=~s/(\s)+/$1/;#only one space
     $garbage=~s/(\\begin{([^\}]+)}|\\end{([^\}]+)})//g;#remove LaTeX \begin{...} and \end{...}      $garbage=~s/(\\begin\{([^\}]+)}|\\end\{([^\}]+)})//g;#remove LaTeX \begin{...} and \end{...}
     $garbage=~s/(\$\_\{|\$\_|\$\^{|\$\^|\}\$)//g;#remove $_{,$_,$^{,$^,}$      $garbage=~s/(\$\_\{|\$\_|\$\^\{|\$\^|\}\$)//g;#remove $_{,$_,$^{,$^,}$
     $garbage=~s/([^\\])\$/$1/g;#$      $garbage=~s/([^\\])\$/$1/g;#$
     $garbage=~s/(\\ensuremath\{\_\{|\\ensuremath\{\_|\\ensuremath\{\^{|\\ensuremath\{\^|\})//g;#remove \ensuremath{...}      $garbage=~s/(\\ensuremath\{\_\{|\\ensuremath\{\_|\\ensuremath\{\^\{|\\ensuremath\{\^|\})//g;#remove \ensuremath{...}
    $garbage=~s/(\\alpha|\\beta|\\gamma|\\delta|\\epsilon|\\verepsilon|\\zeta|\\eta|\\theta|\\vartheta|\\iota|\\kappa|\\lambda|\\mu|\\nu|\\xi|\\pi|\\varpi|\\rho|\\varrho|\\sigma|\\varsigma|\\tau|\\upsilon|\\phi|\\varphi|\\chi|\\psi|\\omega|\\Gamma|\\Delta|\\Theta|\\Lambda|\\Xi|\\Pi|\\Sigma|\\Upsilon|\\Phi|\\Psi|\\Omega)/1/g;     $garbage=~s/(\\alpha|\\beta|\\gamma|\\delta|\\epsilon|\\verepsilon|\\zeta|\\eta|\\theta|\\vartheta|\\iota|\\kappa|\\lambda|\\mu|\\nu|\\xi|\\pi|\\varpi|\\rho|\\varrho|\\sigma|\\varsigma|\\tau|\\upsilon|\\phi|\\varphi|\\chi|\\psi|\\omega|\\Gamma|\\Delta|\\Theta|\\Lambda|\\Xi|\\Pi|\\Sigma|\\Upsilon|\\Phi|\\Psi|\\Omega)/1/g;
     $garbage=~s/(\\pm|\\mp|\\times|\\div|\\cdot|\\ast|\\star|\\dagger|\\ddagger|\\amalg|\\cap|\\cup|\\uplus|\\sqcap|\\sqcup|\\vee|\\wedge|\\oplus|\\ominus|\\otimes|\\circ|\\bullet|\\diamond|\\lhd|\\rhd|\\unlhd|\\unrhd|\\oslash|\\odot|\\bigcirc|\\Box|\\Diamond|\\bigtriangleup|\\bigtriangledown|\\triangleleft|\\triangleright|\\setminus|\\wr)/1/g;      $garbage=~s/(\\pm|\\mp|\\times|\\div|\\cdot|\\ast|\\star|\\dagger|\\ddagger|\\amalg|\\cap|\\cup|\\uplus|\\sqcap|\\sqcup|\\vee|\\wedge|\\oplus|\\ominus|\\otimes|\\circ|\\bullet|\\diamond|\\lhd|\\rhd|\\unlhd|\\unrhd|\\oslash|\\odot|\\bigcirc|\\Box|\\Diamond|\\bigtriangleup|\\bigtriangledown|\\triangleleft|\\triangleright|\\setminus|\\wr)/1/g;
     $garbage=~s/(\\le|\\ll|\\leq|\\ge|\\geq|\\gg|\\neq|\\doreq|\\sim|\\simeq|\\subset|\\subseteq|\\sqsubset|\\sqsubseteq|\\in|\\vdash|\\models|\\supset|\\supseteq|\\sqsupset|\\sqsupseteq|\\ni|\\dash|\\perp|\\approx|\\cong|\\equiv|\\propto|\\prec|\\preceq|\\parallel|\\asymp|\\smile|\\frown|\\bowtie|\\succ|\\succeq|\\mid)/1/g;      $garbage=~s/(\\le|\\ll|\\leq|\\ge|\\geq|\\gg|\\neq|\\doreq|\\sim|\\simeq|\\subset|\\subseteq|\\sqsubset|\\sqsubseteq|\\in|\\vdash|\\models|\\supset|\\supseteq|\\sqsupset|\\sqsupseteq|\\ni|\\dash|\\perp|\\approx|\\cong|\\equiv|\\propto|\\prec|\\preceq|\\parallel|\\asymp|\\smile|\\frown|\\bowtie|\\succ|\\succeq|\\mid)/1/g;
     $garbage=~s/(\\not<|\\\\not\\le|\\not\\prec|\\not\\preceq|\\not\\subset|\\not\\subseteq|\\not\\sqsubseteq|\\not\\in|\\not>|\\not\\ge|\\not\\succ|\\notsucceq|\\not\\supset|\\notsupseteq|\\not\\sqsupseteq|\\notin|\\not=|\\not\\equiv|\\not\\sim|\\not\\simeq|\\not\\approx|\\not\\cong|\\not\\asymp)/1/g;      $garbage=~s/(\\not<|\\\\not\\le|\\not\\prec|\\not\\preceq|\\not\\subset|\\not\\subseteq|\\not\\sqsubseteq|\\not\\in|\\not>|\\not\\ge|\\not\\succ|\\notsucceq|\\not\\supset|\\notsupseteq|\\not\\sqsupseteq|\\notin|\\not=|\\not\\equiv|\\not\\sim|\\not\\simeq|\\not\\approx|\\not\\cong|\\not\\asymp)/1/g;
     $garbage=~s/(\\leftarrow|\\gets|\\Leftarrow|\\rightarrow|\\to|\\Rightarrow|\\leftrightarrow|\\Leftrightarrow|\\mapsto|\\hookleftarrow|\\leftharpoonup|\\leftkarpoondown|\\rightleftharpoons|\\longleftarrow|\\Longleftarrow|\\longrightarrow|\\Longrightarrow|\\longleftrightarrow|\\Longleftrightarrow|\\longmapsto|\\hookrightarrow|\\rightharpoonup|\\rightharpoondown|\\uparrow|\\Uparrow|\\downarrow|\\Downarrow|\\updownarrow|\\Updownarrow|\\nearrow|\\searrow|\\swarrow|\\nwarrow)/11/g;      $garbage=~s/(\\leftarrow|\\gets|\\Leftarrow|\\rightarrow|\\to|\\Rightarrow|\\leftrightarrow|\\Leftrightarrow|\\mapsto|\\hookleftarrow|\\leftharpoonup|\\leftkarpoondown|\\rightleftharpoons|\\longleftarrow|\\Longleftarrow|\\longrightarrow|\\Longrightarrow|\\longleftrightarrow|\\Longleftrightarrow|\\longmapsto|\\hookrightarrow|\\rightharpoonup|\\rightharpoondown|\\uparrow|\\Uparrow|\\downarrow|\\Downarrow|\\updownarrow|\\Updownarrow|\\nearrow|\\searrow|\\swarrow|\\nwarrow)/11/g;
     $garbage=~s/(\\aleph|\\hbar|\\imath|\\jmath|\\ell|\\wp|\\Re|\\Im|\\mho|\\prime|\\emptyset|\\nabla|\\surd|\\partial|\\top|\\bot|\\vdash|\\dashv|\\forall|\\exists|\\neg|\\flat|\\natural|\\sharp|\\\||\\angle|\\backslash|\\Box|\\Diamond|\\triangle|\\clubsuit|\\diamondsuit|\\heartsuit|\\spadesuit|\\Join|\\infty)/11/g;      $garbage=~s/(\\aleph|\\hbar|\\imath|\\jmath|\\ell|\\wp|\\Re|\\Im|\\mho|\\prime|\\emptyset|\\nabla|\\surd|\\partial|\\top|\\bot|\\vdash|\\dashv|\\forall|\\exists|\\neg|\\flat|\\natural|\\sharp|\\\||\\angle|\\backslash|\\Box|\\Diamond|\\triangle|\\clubsuit|\\diamondsuit|\\heartsuit|\\spadesuit|\\Join|\\infty)/11/g;
     $garbage=~s/(\\hat{([^}]+)}|\\check{([^}]+)}|\\dot{([^}]+)}|\\breve{([^}]+)}|\\acute{([^}]+)}|\\ddot{([^}]+)}|\\grave{([^}]+)}|\\tilde{([^}]+)}|\\mathring{([^}]+)}|\\bar{([^}]+)}|\\vec{([^}]+)})/$1/g;      $garbage=~s/(\\hat\{([^}]+)}|\\check\{([^}]+)}|\\dot\{([^}]+)}|\\breve\{([^}]+)}|\\acute\{([^}]+)}|\\ddot\{([^}]+)}|\\grave\{([^}]+)}|\\tilde\{([^}]+)}|\\mathring\{([^}]+)}|\\bar\{([^}]+)}|\\vec\{([^}]+)})/$1/g;
     #remove some other LaTeX command      #remove some other LaTeX command
     $garbage=~s|\\(\w+)\\|\\|g;        $garbage=~s|\\(\w+)\\|\\|g;  
     $garbage=~s|\\(\w+)(\s*)|$2|g;        $garbage=~s|\\(\w+)(\s*)|$2|g;  
Line 4545  sub latex_header { Line 4595  sub latex_header {
  ($mode eq 'batchmode')) {$currentstring .='\batchmode';}    ($mode eq 'batchmode')) {$currentstring .='\batchmode';} 
     $currentstring .= '\newcommand{\keephidden}[1]{}'.      $currentstring .= '\newcommand{\keephidden}[1]{}'.
  '\renewcommand{\deg}{$^{\circ}$}'.   '\renewcommand{\deg}{$^{\circ}$}'.
  '\usepackage{multirow}'.   '\usepackage{multirow}'."\n".
  '\usepackage{longtable}'.   '\usepackage{longtable}'."\n".
  '\usepackage{textcomp}'.   '\usepackage{textcomp}'."\n".
  '\usepackage{makeidx}'.   '\usepackage{makeidx}'."\n".
  '\usepackage[dvips]{graphicx}'.   '\usepackage[dvips]{graphicx}'."\n".
  '\usepackage{wrapfig}'.   '\usepackage{wrapfig}'."\n".
  '\usepackage{picins}'.   '\usepackage{picins}'."\n".
  '\usepackage[T1]{fontenc}'."\n".   '\usepackage[T1]{fontenc}'."\n".
  '\usepackage{lmodern}'."\n".   '\usepackage{lmodern}'."\n".
  '\usepackage[postscript]{ucs}'."\n".   '\usepackage[postscript]{ucs}'."\n".
  '\usepackage[utf8x]{inputenc}'."\n".   '\usepackage[utf8x]{inputenc}'."\n".
  '\usepackage{pifont}' ."\n".   '\usepackage{pifont}'."\n".
  '\usepackage{latexsym}'."\n".   '\usepackage{latexsym}'."\n".
  '\usepackage{epsfig}'.   '\usepackage{epsfig}'."\n".
  "\\usepackage{xtab}\n".   '\usepackage{xtab}'."\n".
  "\\usepackage{tabularx}\n".   '\usepackage{tabularx}'."\n".
  "\\usepackage{booktabs}\n".   '\usepackage{booktabs}'."\n".
  "\\usepackage{array}\n".   '\usepackage{array}'."\n".
  "\\usepackage{colortbl}\n".   '\usepackage{colortbl}'."\n".
  "\\usepackage{xcolor}\n".   '\usepackage{xcolor}'."\n".
  '\usepackage{calc}'.   '\usepackage{calc}'."\n".
  '\usepackage{amsmath}'.   '\usepackage{amsmath}'."\n".
  '\usepackage{soul}'.   '\usepackage{soul}'."\n".
  '\usepackage{amssymb}'.   '\usepackage{amssymb}'."\n".
  '\usepackage{amsfonts}'.   '\usepackage{amsfonts}'."\n".
  '\usepackage{amsthm}'.   '\usepackage{amsthm}'."\n".
  '\usepackage{amscd}'   '\usepackage{amscd}'."\n".
         .'\usepackage{picins}\usepackage{calc}'."\n". # From lonprintout.pm   '\usepackage{actuarialangle}'."\n";
  '\usepackage[T1]{fontenc}'."\n".  
  '\usepackage{lmodern}'."\n".  
  '\usepackage[postscript]{ucs}'."\n".  
  '\usepackage[utf8x]{inputenc}'."\n".  
  '\usepackage{pifont}'  . "\n";  
   
     if($env{'form.pdfFormFields'} eq 'yes') {      if($env{'form.pdfFormFields'} eq 'yes') {
  $currentstring .= '\usepackage{hyperref}'.   $currentstring .= '\usepackage{hyperref}'.
     '\usepackage{eforms}'.      '\usepackage{eforms}'.
Line 4605  sub clean_docs_httpref { Line 4649  sub clean_docs_httpref {
         $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};          $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
     }      }
     my $cleanhref;      my $cleanhref;
     if ($docuri =~ m{^(\Q/uploaded/$cdom/$cnum/docs/\E)(.+/)[^/]+$}) {      if ($docuri =~ m{^(\Q/uploaded/$cdom/$cnum/\E(?:docs|supplemental)/)(.+/)[^/]+$}) {
         my $prefix = $1;          my $prefix = $1;
         my $relpath = $2;          my $relpath = $2;
         my ($hrefpath,$fname);          my ($hrefpath,$fname);
Line 4649  sub clean_docs_httpref { Line 4693  sub clean_docs_httpref {
     return $cleanhref;      return $cleanhref;
 }  }
   
   # This is retrieving a CSS property from the style attribute of the current element.
   # It is not checking <style> elements or linked stylesheets yet.
   sub get_css_property {
       my ($property,$parstack,$safeeval) = @_;
       my $style=&Apache::lonxml::get_param('style',$parstack,$safeeval,undef,1);
       my @style_components=split(/;/,$style);
       foreach my $css_pair (@style_components) {
           my ($name, $value) = split(/:/, $css_pair);
           $name =~ s/^\s+|\s+$//g;
           $value =~ s/^\s+|\s+$//g;
           if ($name eq $property) {
               return $value;
           }
       }
       return undef;
   }
   
 =pod  =pod
   
 =head1 NAME  =head1 NAME
Line 4758  described at http://www.lon-capa.org. Line 4819  described at http://www.lon-capa.org.
   
         Output:          Output:
         returns an absolute URL constructed from the href provided, and the calling context.          returns an absolute URL constructed from the href provided, and the calling context.
         (this will be null, if the URL does not begin: /uploaded/$cdom/$cnum/docs/).          (this will be null, if the URL does not begin: /uploaded/$cdom/$cnum/docs/ or
           /uploaded/$cdom/$cnum/supplemental/).
   
 =back  =back
   
Removed from v.1.451  
changed lines
  Added in v.1.465

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