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Diff for /loncom/xml/londefdef.pm between versions 1.296 and 1.312

version 1.296, 2005/11/28 21:58:24 version 1.312, 2006/01/11 11:58:06
Line 48  use Apache::lonmenu(); Line 48  use Apache::lonmenu();
 use Apache::lonmeta();  use Apache::lonmeta();
 use Apache::Constants qw(:common);  use Apache::Constants qw(:common);
 use File::Basename;  use File::Basename;
 #use Data::Dumper;  # use Data::Dumper;
   
 BEGIN {  BEGIN {
   
Line 61  BEGIN { Line 61  BEGIN {
 #   Need this 'cause evidently when given an array, Data::Dumper only seems  #   Need this 'cause evidently when given an array, Data::Dumper only seems
 #   to dump element 0.  #   to dump element 0.
 #  #
 sub debug_dump_table {  #sub debug_dump_table {
     my $lastrow = $#Apache::londefdef::table;  #    my $lastrow = $#Apache::londefdef::table;
     &Apache::lonnet::logthis("Dumping table:  Last row index: $lastrow");  #    &Apache::lonnet::logthis("Dumping table:  Last row index: $lastrow");
     my $row;  #    my $row;
     for ($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 {
     $Apache::londefdef::TD_redirection=0;      $Apache::londefdef::TD_redirection=0;
     @Apache::londefdef::table = ();      @Apache::londefdef::table = ();
Line 145  sub end_m { Line 143  sub end_m {
 }  }
   
 sub start_tthoption {  sub start_tthoption {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;      my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
     my $result;      my $result;
     if ($target eq 'web') {      if ($target eq 'web') {
  my $inside = &Apache::lonxml::get_all_text("/tthoption",$parser);   my $inside = &Apache::lonxml::get_all_text("/tthoption",$parser,
      $style);
  $inside=~s/^\s*//;   $inside=~s/^\s*//;
  if ($env{'browser.mathml'}) {   if ($env{'browser.mathml'}) {
     &tth::ttmoptions($inside);      &tth::ttmoptions($inside);
Line 174  sub start_html { Line 173  sub start_html {
     if ($target eq 'web' || $target eq 'edit' || $target eq 'webgrade' ) {      if ($target eq 'web' || $target eq 'edit' || $target eq 'webgrade' ) {
  $currentstring = &Apache::lonxml::xmlbegin();   $currentstring = &Apache::lonxml::xmlbegin();
     } elsif ($target eq 'tex') {      } elsif ($target eq 'tex') {
  $currentstring .= '\documentclass[letterpaper]{article}';   $currentstring .= '\documentclass[letterpaper,twoside]{article}';
  if (($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}'.
Line 385  sub end_title { Line 385  sub end_title {
   
 #-- <meta> tag (end tag forbidden)  #-- <meta> tag (end tag forbidden)
 sub start_meta {  sub start_meta {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;      my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
     my $currentstring = '';      my $currentstring = '';
     if ($target eq 'web') {      if ($target eq 'web') {
  my $args='';   my $args='';
  if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }   if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
  if ($args eq '') {   if ($args eq '') {
     &Apache::lonxml::get_all_text("/meta",$parser);      &Apache::lonxml::get_all_text("/meta",$parser,$style);
  } else {   } else {
     $currentstring = $token->[4];      $currentstring = $token->[4];
  }   }
Line 454  sub end_meta { Line 454  sub end_meta {
   
 # accessrule  # accessrule
 sub start_accessrule {  sub start_accessrule {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;      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);
Line 473  sub start_accessrule { Line 473  sub start_accessrule {
  my $args='';   my $args='';
  if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }   if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
  if ($args eq '') {   if ($args eq '') {
     &Apache::lonxml::get_all_text("/accessrule",$parser);      &Apache::lonxml::get_all_text("/accessrule",$parser,$style);
  } else {   } else {
     $currentstring = $token->[4];      $currentstring = $token->[4];
  }   }
Line 594  sub end_body { Line 594  sub end_body {
     return $currentstring;      return $currentstring;
 }  }
   
   # \begin{center} causes a new paragprah spacing that looks odd inside 
   # of a table cell
   sub center_correction { return '\vspace*{-6 mm}'; }
 #-- <center> tag (end tag required)  #-- <center> tag (end tag required)
 sub start_center {  sub start_center {
     my ($target,$token) = @_;      my ($target,$token,$tagstack) = @_;
     my $currentstring = &end_p(); # Close off any prior para.      my $currentstring = &end_p(); # Close off any prior para.
     if ($target eq 'web') {      if ($target eq 'web') {
  $currentstring .= $token->[4];        $currentstring .= $token->[4];     
     } elsif ($target eq 'tex') {      } elsif ($target eq 'tex') {
    if (&is_inside_of($tagstack, "table")) {
       $currentstring .= &center_correction();
    }
  $currentstring .= '\begin{center}';     $currentstring .= '\begin{center}';  
     }      }
     return $currentstring;      return $currentstring;
 }  }
   
 sub end_center {  sub end_center {
     my ($target,$token) = @_;      my ($target,$token,$tagstack) = @_;
     my $currentstring = '';      my $currentstring = '';
     if ($target eq 'web') {      if ($target eq 'web') {
  $currentstring = $token->[2];        $currentstring = $token->[2];     
     } elsif ($target eq 'tex') {      } elsif ($target eq 'tex') {
  $currentstring = '\end{center}';     $currentstring = '\end{center}';  
    if (&is_inside_of($tagstack, "table")) {
       $currentstring .= &center_correction();
    }
     }      }
     return $currentstring;      return $currentstring;
 }  }
Line 1183  sub start_p { Line 1192  sub start_p {
  if ($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")) {
    $currentstring = &center_correction().$currentstring;
    $closing_string .= &center_correction();
       }
  } elsif ($align eq 'right') {   } elsif ($align eq 'right') {
     $currentstring.='\makebox['.$env{'form.textwidth'}.']{\hfill\llap{';      $currentstring.='\makebox['.$env{'form.textwidth'}.']{\hfill\llap{';
     $closing_string= '}}';      $closing_string= '}}';
Line 1524  sub start_div { Line 1537  sub start_div {
  if ($align eq 'center') {   if ($align eq 'center') {
     $currentstring .= '\begin{center}';      $currentstring .= '\begin{center}';
     $endstring      = '\end{center}';      $endstring      = '\end{center}';
       if (&is_inside_of($tagstack, "table")) {
    $currentstring = &center_correction().$currentstring;
    $endstring .= &center_correction();
       }
  }   }
  elsif ($align eq 'right') {   elsif ($align eq 'right') {
     $currentstring .= '\begin{flushright}';      $currentstring .= '\begin{flushright}';
Line 1944  sub start_table { Line 1961  sub start_table {
   
  # width either comes forced from the TeXwidth or the width parameters.   # width either comes forced from the TeXwidth or the width parameters.
  # in either case it can be a percentage or absolute width.   # in either case it can be a percentage or absolute width.
    # in the width case we ignore absolute width 
  my $TeXwidth = &Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);   my $TeXwidth = &Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
  if (not defined $TeXwidth) {   if (!defined($TeXwidth)) {
     $TeXwidth = &Apache::lonxml::get_param('width',$parstack,$safeeval,undef,1);      my $htmlwidth = &Apache::lonxml::get_param('width',$parstack,
          $safeeval,undef,1);
       if ($htmlwidth =~ /%/) {
    $TeXwidth = $htmlwidth;
       } else { 
    $TeXwidth = $textwidth;
       }
  } else {   } else {
     $Apache::londefdef::table[-1]{'forcedtablewidth'} = 1;      $Apache::londefdef::table[-1]{'forcedtablewidth'} = 1;
  }   }
Line 2002  sub end_table { Line 2024  sub end_table {
  my $inmemory = '';   my $inmemory = '';
  my $output = '';   my $output = '';
  my $WARNING='';   my $WARNING='';
    # &debug_dump_table($Apache::londefdef::table[-1]);
         #width of columns from TeXwidth attributes          #width of columns from TeXwidth attributes
   
  for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {   for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
Line 2186  sub end_table { Line 2209  sub end_table {
  $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++) {
    #
    #  Do the appropriate magic if this has a colspan
    # 
    my $colspan = $Apache::londefdef::table[-1]{'colspan'}[$in][$jn];
    if ($colspan > 1) {
       $output .= '\multicolumn{'.
    $colspan
    .'}{|l|}{';
    }
    my $rowspan = $Apache::londefdef::table[-1]{'rowspan'}[$in][$jn];
   
    # Start a rowspan if necessary:
   
    if ($rowspan > 1) {
       $have_rowspan++;
       $output .= '\multirow{'.$rowspan.'}[0]{'.$fwidth[$jn].'mm}{';
    }
    if (($rowspan eq '^') || ($rowspan eq '_')) {
       $have_rowspan++;
    }
   
  if ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'c') {   if ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'c') {
     # $output.='\vspace*{-6 mm}\begin{center}';      $output.=&center_correction().'\begin{center}';
     $output.='\begin{center}';  
  } elsif ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'r') {   } elsif ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'r') {
     $output.=' \hfill \llap{'      $output.=' \hfill \llap{'
  }   }
  $output.=$Apache::londefdef::table[-1]{'content'}[$in][$jn];   $output.=$Apache::londefdef::table[-1]{'content'}[$in][$jn];
  if ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'c') {   if ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'c') {
     # $output.='\end{center}\vspace*{-6 mm}';      $output.='\end{center}'.&center_correction();
     $output.='\end{center}';  
  } elsif ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'r') {   } elsif ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'r') {
     $output.='} ';      $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 <= 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 2217  sub end_table { Line 2288  sub end_table {
     my $min_nested_width = 0;      my $min_nested_width = 0;
     my $max_nested_width = 0;      my $max_nested_width = 0;
     for (my $col = 0; $col <= $Apache::londefdef::table[-1]{'counter_columns'}; $col++) {      for (my $col = 0; $col <= $Apache::londefdef::table[-1]{'counter_columns'}; $col++) {
   
  $min_nested_width +=  $min_len[$col];   $min_nested_width +=  $min_len[$col];
  $max_nested_width +=  $max_len[$col];   $max_nested_width +=  $max_len[$col];
   
     }      }
     # Fudge in an extra 5 mm for borders etc:      # Fudge in an extra 5 mm for borders etc:
           
Line 2261  sub start_tr { Line 2332  sub start_tr {
     push @ {$Apache::londefdef::table[-1]{'rows'} }, 'l';      push @ {$Apache::londefdef::table[-1]{'rows'} }, 'l';
  }   }
  push ( @{ $Apache::londefdef::table[-1]{'rowdata'} }, $Apache::londefdef::table[-1]{'hinc'});   push ( @{ $Apache::londefdef::table[-1]{'rowdata'} }, $Apache::londefdef::table[-1]{'hinc'});
    #
    #  Need to save the number of table columns to preserve the max # columns.
    #
    $Apache::londefdef::table[-1]{'prior_columns'}   = $Apache::londefdef::table[-1]{'counter_columns'};
  $Apache::londefdef::table[-1]{'counter_columns'} = -1;   $Apache::londefdef::table[-1]{'counter_columns'} = -1;
  push @ {$Apache::londefdef::table[-1]{'TeXlen'}}, [];   push @ {$Apache::londefdef::table[-1]{'TeXlen'}}, [];
  push @ {$Apache::londefdef::table[-1]{'objectlen'}}, [];   push @ {$Apache::londefdef::table[-1]{'objectlen'}}, [];
Line 2280  sub end_tr { Line 2355  sub end_tr {
  if ($Apache::londefdef::TD_redirection) {   if ($Apache::londefdef::TD_redirection) {
     &end_td_tex($parstack,$parser,$safeeval);          &end_td_tex($parstack,$parser,$safeeval);    
  }   }
    # Counter columns must be the maximum number of columns seen
    # in the table so far so:
    if ($Apache::londefdef::table[-1]{'prior_columns'} > $Apache::londefdef::table[-1]{'counter_columns'}) {
       $Apache::londefdef::table[-1]{'counter_columns'} = $Apache::londefdef::table[-1]{'prior_columns'};
    }
   
   
   
Line 2337  sub start_td_tex { Line 2417  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;
      
   
   
       my $rowspan = &Apache::lonxml::get_param('rowspan', $parstack, $safeeval, undef, 0);
       if (!$rowspan) {
    $rowspan = 1;
       }
   
   
   
       $Apache::londefdef::table[-1]{'rowspan'}[$current_row][$current_column] = $rowspan;
       for (my $i = 1; $i < $rowspan; $i++) {
    $Apache::londefdef::table[-1]{'rowspan'}[$current_row+$i][$current_column] = '^';
    if ($i == ($rowspan-1)) {
       $Apache::londefdef::table[-1]{'rowspan'}[$current_row+$i][$current_column] = '_';
    }
       }
   
     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'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';   push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
Line 2415  sub end_td_tex { Line 2529  sub end_td_tex {
     push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$min_length;      push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$min_length;
  }           }        
     }      }
  for (my $in=0; $in<=$#{$Apache::londefdef::table[-1]{'include'}};$in++) {               # Substitute all of the tables nested in this cell in their appropriate places.
     $data=~s/\\keephidden\{NEW TABLE ENTRY\}/$Apache::londefdef::table[-1]{'include'}[$in] \&/;  
  }  
       my $nested_count = $#{$Apache::londefdef::table[-1]{'include'}}; # This one is constant...
       for (my $in=0; $in<=$nested_count; $in++) {    
    my $nested = shift @{$Apache::londefdef::table[-1]{'include'}};
    $nested =~ s/\\end\{tabular\}\\strut\\\\/\\end\{tabular\}/;
    # $data=~s/\\keephidden\{NEW TABLE ENTRY\}/$Apache::londefdef::table[-1]{'include'}[$in]/;
    $data =~ s/\\keephidden\{NEW TABLE ENTRY\}/$nested/;
   
       }
       # 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;
     return'';  
       # 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;
       }
   
   
       #  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.
       #
   
       $Apache::londefdef::table[-1]{'colspan'}[$current_row][$current_column] = $colspan;
       $Apache::londefdef::table[-1]{'counter_columns'} += $colspan -1;
   
       # Put empty text in spanned cols.
   
       for (my $i = 0; $i < ($colspan -1); $i++) {
    push @ {$Apache::londefdef::table[-1]{'content'}[-1] },'';
       }
   
   
       return '';
 }  }
   
 sub end_td {  sub end_td {
Line 2575  sub end_th { Line 2725  sub end_th {
 #         (Note there seems to also be support for this as a % of page size)  #         (Note there seems to also be support for this as a % of page size)
 #        #      
 sub start_img {  sub start_img {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;      my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
     my $src = &Apache::lonxml::get_param('src',$parstack,$safeeval,      my $src = &Apache::lonxml::get_param('src',$parstack,$safeeval,
  undef,1);   undef,1);
     if (not $src and ($target eq 'web' or $target eq 'tex')) {       if (not $src and ($target eq 'web' or $target eq 'tex')) { 
  my $inside = &Apache::lonxml::get_all_text("/img",$parser);   my $inside = &Apache::lonxml::get_all_text("/img",$parser,$style);
  return '';   return '';
     }      }
     &Apache::lonxml::extlink($src);      &Apache::lonxml::extlink($src);
Line 2615  sub start_img { Line 2765  sub start_img {
   $safeeval,    $safeeval,
   undef,1));    undef,1));
  if(!$align) {   if(!$align) {
     if (&is_inside_of($tagstack, "table")) {  
  $align = "right";      # Force wraptext use.   
     } 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 2634  sub start_img { Line 2780  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");   # &Apache::lonxml::debug("LaTeX rendering = $latex_rendering image file: $src");
   
  #if original gif/jpg/png file exist do following:   #if original gif/jpg/png file exist do following:
  my $origsrc=$src;   my $origsrc=$src;
Removed from v.1.296  
changed lines
  Added in v.1.312

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