--- loncom/xml/londefdef.pm 2006/03/29 23:00:51 1.302.2.5
+++ loncom/xml/londefdef.pm 2006/08/01 18:48:14 1.331
@@ -1,7 +1,7 @@
# The LearningOnline Network with CAPA
# Tags Default Definition Module
#
-# $Id: londefdef.pm,v 1.302.2.5 2006/03/29 23:00:51 albertel Exp $
+# $Id: londefdef.pm,v 1.331 2006/08/01 18:48:14 albertel Exp $
#
#
# Copyright Michigan State University Board of Trustees
@@ -68,7 +68,6 @@ BEGIN {
# for ($row =0; $row <= $lastrow; $row++ ) {
# my $text = Dumper($Apache::londefdef::table[$row]);
# &Apache::lonnet::logthis("table [ $row ]".$text);
-#
# }
#}
sub initialize_londefdef {
@@ -80,6 +79,8 @@ sub initialize_londefdef {
@Apache::londefdef::DT=(0);
@Apache::londefdef::seenDT=(0);
$Apache::londefdef::list_index=0;
+ undef($Apache::londefdef::head);
+ undef($Apache::londefdef::title);
}
#======================= TAG SUBROUTINES =====================
@@ -106,11 +107,21 @@ sub start_m {
$inside=&Apache::run::evaluate($inside,$safeeval,$$parstack[-1]);
#&Apache::lonxml::debug("M is evaulated to:$inside:");
}
+ my $tex = $inside;
my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
$currentstring = &Apache::lontexconvert::converted(\$inside,$display);
if ($Apache::lontexconvert::errorstring) {
- &Apache::lonxml::warning("tth error: ".
- $Apache::lontexconvert::errorstring);
+ my $errormsg='<pre>'.&HTML::Entities::encode($Apache::lontexconvert::errorstring,'<>&"').'</pre> occured while attempting to convert this TeX: <pre>';
+ $tex = &HTML::Entities::encode($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>');
$Apache::lontexconvert::errorstring='';
}
#&Apache::lonxml::debug("M is ends with:$currentstring:");
@@ -169,16 +180,16 @@ sub end_tthoption {
sub start_html {
my ($target,$token) = @_;
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' ) {
- $currentstring = &Apache::lonxml::xmlbegin();
+ # start_body() takes care of emitting the <html>
} elsif ($target eq 'tex') {
- $currentstring .= '\documentclass[letterpaper]{article}';
+ $currentstring .=
+ '\documentclass[letterpaper,twoside]{article}\raggedbottom';
if (($env{'form.latex_type'}=~'batchmode') ||
(!$env{'request.role.adv'})) {$currentstring .='\batchmode';}
$currentstring .= '\newcommand{\keephidden}[1]{}'.
'\renewcommand{\deg}{$^{\circ}$}'.
+ '\usepackage{multirow}'.
'\usepackage{longtable}'.
'\usepackage{textcomp}'.
'\usepackage{makeidx}'.
@@ -202,7 +213,7 @@ sub end_html {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
my $currentstring = '';
if ($target eq 'web' || $target eq 'webgrade') {
- $currentstring = '</html>';
+ # end_body takes care of the </html>
}
return $currentstring;
}
@@ -212,7 +223,7 @@ sub start_head {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web' || $target eq 'webgrade') {
- $currentstring = $token->[4].&Apache::lonxml::fontsettings();
+ &Apache::lonxml::startredirection();
}
return $currentstring;
}
@@ -222,8 +233,10 @@ sub end_head {
my $currentstring = '';
if (($target eq 'web' && $env{'request.state'} eq 'published') ||
($target eq 'webgrade' && $env{'request.state'} eq 'published')) {
- $currentstring = &Apache::lonmenu::registerurl(undef,$target).
- $token->[2];
+ # in case there is a </head> but no <head>
+ if ($Apache::lonxml::redirection) {
+ $Apache::londefdef::head = &Apache::lonxml::endredirection();
+ }
}
return $currentstring;
}
@@ -355,10 +368,11 @@ sub end_form {
#-- <title> tag (end tag required)
sub start_title {
- my ($target,$token) = @_;
+ my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
my $currentstring = '';
if ($target eq 'web' || $target eq 'webgrade') {
- $currentstring = $token->[4];
+ $Apache::londefdef::title =
+ &Apache::lonxml::get_all_text('/title',$parser,$style);
} elsif ($target eq 'tex') {
$currentstring .= '\keephidden{Title of the document: '
}
@@ -373,7 +387,7 @@ sub end_title {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web' || $target eq 'webgrade') {
- $currentstring = $token->[2];
+ # start_title takes care of swallowing the title
} elsif ($target eq 'tex') {
$currentstring .= '}';
}
@@ -508,74 +522,25 @@ sub start_body {
&Apache::lonxml::warning("<body> tag found inside of <problem> tag this can cause problems.");
return '';
}
- if (!$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];
- foreach (keys %{$token->[2]}) {
- $currentstring.=' '.$_.'="'.$token->[2]->{$_}.'"';
- }
- $currentstring.='>';
- &Apache::lontexconvert::jsMath_reset();
- if ($env{'environment.texengine'} eq 'jsMath') {
- $currentstring.=&Apache::lontexconvert::jsMath_header();
+ if (&is_inside_of($tagstack, "head")) {
+ &end_head(@_);
}
+ $currentstring =
+ &Apache::loncommon::start_page($Apache::londefdef::title,
+ $Apache::londefdef::head,
+ {'add_entries' => $token->[2],
+ 'no_title' => 1,
+ 'force_register' => 1});
+
if ($env{'request.state'} ne 'published') {
- if ($env{'environment.remote'} eq 'off') {
- $currentstring.=
- &Apache::lonmenu::constspaceform().
- &Apache::lonmenu::menubuttons(1,'web',1);
- }
+ $currentstring.=&Apache::lonmenu::constspaceform();
$currentstring.=(<<EDITBUTTON);
<form method="post">
<input type="submit" name="editmode" accesskey="e" value="Edit" />
</form>
+<br />
EDITBUTTON
- } else {
- $currentstring.=&Apache::lonmenu::menubuttons(undef,$target,1);
}
$currentstring.=&Apache::lonxml::message_location();
} elsif ($target eq 'tex') {
@@ -588,7 +553,7 @@ sub end_body {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
my $currentstring = &end_p(); # Close off unclosed <p>
if ($target eq 'web' || $target eq 'webgrade') {
- $currentstring .= &Apache::lonxml::xmlend($target,$parser);
+ $currentstring .= &Apache::loncommon::end_page({'discussion' => 1});
} elsif ($target eq 'tex') {
$currentstring .= '\strut\newline\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}\newline\noindent \end{document}';
}
@@ -620,9 +585,6 @@ sub end_center {
$currentstring = $token->[2];
} elsif ($target eq 'tex') {
$currentstring = '\end{center}';
- if (&is_inside_of($tagstack, "table")) {
- #$currentstring .= ¢er_correction();
- }
}
return $currentstring;
}
@@ -1188,6 +1150,7 @@ sub start_p {
$closing_string = '</p>'; # Deal correctly with <p /> e.g.
}
} elsif ($target eq 'tex' && !$para_disabled) {
+
$currentstring .= &end_p(); # close off prior para if in progress.
my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
if ($align eq 'center') {
@@ -1195,17 +1158,22 @@ sub start_p {
$closing_string = '\end{center}';
if (&is_inside_of($tagstack, "table")) {
$currentstring = ¢er_correction().$currentstring;
- #$closing_string .= ¢er_correction();
}
} elsif ($align eq 'right') {
- $currentstring.='\makebox['.$env{'form.textwidth'}.']{\hfill\llap{';
- $closing_string= '}}';
+ $currentstring.="\n".'{\flushright ';
+# $currentstring.='\makebox['.$env{'form.textwidth'}.']{\hfill\llap{';
+ $closing_string= "}\n";
} elsif ($align eq 'left') {
- $currentstring.='\noindent\makebox['.$env{'form.textwidth'}.']{\rlap{';
- $closing_string = '}\hfill}';
+ $currentstring.= "\n".'{\flushleft ';
+# $currentstring.='\noindent\makebox['.$env{'form.textwidth'}.']{{';
+ $closing_string = "}\n";
} else {
$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 ';
+ }
}
}
@@ -1540,7 +1508,6 @@ sub start_div {
$endstring = '\end{center}';
if (&is_inside_of($tagstack, "table")) {
$currentstring = ¢er_correction().$currentstring;
- #$endstring .= ¢er_correction();
}
}
elsif ($align eq 'right') {
@@ -1981,7 +1948,12 @@ sub start_table {
$Apache::londefdef::table[-1]{'width'}=$1*$textwidth/100;
} else {
$Apache::londefdef::table[-1]{'width'}=$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
my $border = &Apache::lonxml::get_param('border',$parstack,$safeeval);
@@ -2209,7 +2181,38 @@ sub end_table {
$header_of_table .= '}';
#fill the table
for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
+ my $have_rowspan = 0;
for (my $jn=0;$jn<=$#fwidth;$jn++) {
+
+ #-----------------------------------------------------------
+ # I think this order of doing things will ensure that
+ # single rowspan, columspan and combined row/colspans will
+ # work correctly. LaTeX is delicate here.
+ # RF.
+
+ # Start a rowspan if necessary:
+
+ my $rowspan = $Apache::londefdef::table[-1]{'rowspan'}[$in][$jn];
+ my $colspan = $Apache::londefdef::table[-1]{'colspan'}[$in][$jn];
+ #
+ # Do the appropriate magic if this has a colspan
+ #
+
+ if ($colspan > 1) {
+ $output .= '\multicolumn{'.
+ $colspan
+ .'}{|l|}{';
+ }
+
+ if ($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') {
$output.=¢er_correction().'\begin{center}';
} elsif ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'r') {
@@ -2217,13 +2220,43 @@ sub end_table {
}
$output.=$Apache::londefdef::table[-1]{'content'}[$in][$jn];
if ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'c') {
- $output.='\end{center}';#.¢er_correction();
+ $output.='\end{center}';
} elsif ($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'};}
}
- $output.=' \\\\ '.$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>
# $Apache::londefdef::table[-1]{'output'} .= $header_of_table.$Apache::londefdef::table[-1]{'hinc'}.$output.'\end{tabular}\strut\newline\strut ';
@@ -2367,8 +2400,51 @@ sub start_td_tex {
sub end_td_tex {
my ($parstack,$parser,$safeeval) = @_;
- my $current_row = $Apache::londefdef::table[-1]{'row_number'};
- my $data=&Apache::lonxml::endredirection();
+ my $current_row = $Apache::londefdef::table[-1]{'row_number'};
+ 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);
if (defined $TeXwidth) {
push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
@@ -2457,7 +2533,30 @@ sub end_td_tex {
}
# Should be be killing off the 'include' elements as they're used up?
+
push @ {$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] = $colspan;
+ # Put empty text in spanned cols.
+
+ }
+
+
+
return '';
}
@@ -2631,13 +2730,17 @@ sub start_img {
if ($target eq 'web' || $target eq 'webgrade') {
if ($env{'browser.imagesuppress'} ne 'on') {
- $currentstring.=&Apache::lonenc::encrypt_ref($token,{'src'=>$src});
- } else {
- my $alttag= &Apache::lonxml::get_param
- ('alt',$parstack,$safeeval,undef,1);
- unless ($alttag) {
- $alttag=&Apache::lonmeta::alttag
- ($Apache::lonxml::pwd[-1],$src);
+ my $enc = ('yes' eq
+ lc(&Apache::lonxml::get_param('encrypturl',$parstack,
+ $safeeval)));
+ $currentstring.=&Apache::lonenc::encrypt_ref($token,{'src'=>$src},
+ $enc);
+ } else {
+ my $alttag = &Apache::lonxml::get_param('alt',$parstack,$safeeval,
+ undef,1);
+ if (!$alttag) {
+ $alttag = &Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],
+ $src);
}
$currentstring.='[IMAGE: '.$alttag.']';
}
@@ -2656,12 +2759,7 @@ sub start_img {
$safeeval,
undef,1));
if(!$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.
- }
}
#
&Apache::lonxml::debug("Alignemnt = $align");
@@ -2676,11 +2774,18 @@ sub start_img {
$parstack,
$safeeval,
undef,0);
- &Apache::lonxml::debug("LaTeX rendering = $latex_rendering");
+ # &Apache::lonxml::debug("LaTeX rendering = $latex_rendering");
if(!$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:
my $origsrc=$src;
@@ -2762,6 +2867,8 @@ sub start_img {
['','bottom','middle','top','left','right'],$token,5);
$currentstring .=&Apache::edit::select_arg('TeXwrap:', 'TeXwrap',
['', 'parbox', 'parpic'], $token, 2);
+ $currentstring .=&Apache::edit::select_arg('Encyrpt URL:','encrypturl',
+ ['no','yes'], $token, 2);
$currentstring .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
my $src= &Apache::lonxml::get_param('src',$parstack,$safeeval);
my $alt= &Apache::lonxml::get_param('alt',$parstack,$safeeval);
@@ -2779,7 +2886,7 @@ sub start_img {
my $ctag=&Apache::edit::get_new_args($token,$parstack,
$safeeval,'src','alt','align',
'TeXwidth','TeXheight', 'TeXwrap',
- 'width','height');
+ 'width','height','encrypturl');
my ($nsrc,$nwidth,$nheight)=
($token->[2]{'src'},$token->[2]{'width'},$token->[2]{'height'});
my $loc=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$nsrc);
@@ -2982,34 +3089,14 @@ sub start_frameset {
my ($target,$token) = @_;
my $currentstring = ''; # Close any pending para.
if ($target eq 'web' || $target eq 'webgrade') {
- if (!$Apache::lonxml::registered &&
- $env{'request.state'} eq 'published') {
- $currentstring.='<head>'.
- &Apache::lonmenu::registerurl(undef,$target).'</head>';
- }
- 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];
- foreach (keys %{$token->[2]}) {
- $currentstring.=' '.$_.'="'.$token->[2]->{$_}.'"';
- }
- $currentstring.='>';
+ $currentstring =
+ &Apache::loncommon::start_page($Apache::londefdef::title,
+ $Apache::londefdef::head,
+ {'add_entries' => $token->[2],
+ 'no_title' => 1,
+ 'force_register' => 1,
+ 'frameset' => 1,});
+
}
return $currentstring;
}
@@ -3054,6 +3141,7 @@ sub start_pre {
$currentstring .= $token->[4];
} elsif ($target eq 'tex') {
$currentstring .= '\begin{verbatim}';
+ &Apache::lonxml::disable_LaTeX_substitutions();
}
return $currentstring;
}
@@ -3065,6 +3153,7 @@ sub end_pre {
$currentstring .= $token->[2];
} elsif ($target eq 'tex') {
$currentstring .= '\end{verbatim}';
+ &Apache::lonxml::enable_LaTeX_substitutions();
}
return $currentstring;
}