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Diff for /loncom/xml/londefdef.pm between versions 1.446 and 1.470

version 1.446, 2013/09/22 15:35:45	version 1.470, 2023/03/25 18:38:27
Line 1	Line 1
# The LearningOnline Network with CAPA	# The LearningOnline Network with CAPA
# Tags Default Definition Module	# Tags Default Definition Module
#	#
# $Id$	# $Id$
#	#
#	#
# Copyright Michigan State University Board of Trustees	# Copyright Michigan State University Board of Trustees
#	#
Line 25	Line 25
# /home/httpd/html/adm/gpl.txt	# /home/httpd/html/adm/gpl.txt
#	#
# http://www.lon-capa.org/	# http://www.lon-capa.org/
## Copyright for TtHfunc and TtMfunc by Ian Hutchinson.	## Copyright for TtHfunc and TtMfunc by Ian Hutchinson.
# TtHfunc and TtMfunc (the "Code") may be compiled and linked into	# TtHfunc and TtMfunc (the "Code") may be compiled and linked into
# binary executable programs or libraries distributed by the	# binary executable programs or libraries distributed by the
# Michigan State University (the "Licensee"), but any binaries so	# Michigan State University (the "Licensee"), but any binaries so
# distributed are hereby licensed only for use in the context	# distributed are hereby licensed only for use in the context
# of a program or computational system for which the Licensee is the	# of a program or computational system for which the Licensee is the
# primary author or distributor, and which performs substantial	# primary author or distributor, and which performs substantial
# additional tasks beyond the translation of (La)TeX into HTML.	# additional tasks beyond the translation of (La)TeX into HTML.
# The C source of the Code may not be distributed by the Licensee	# The C source of the Code may not be distributed by the Licensee
# to any other parties under any circumstances.	# to any other parties under any circumstances.
#	#

package Apache::londefdef;	package Apache::londefdef;

use Apache::lonnet;	use Apache::lonnet;
use strict;	use strict;
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>'));
	} elsif (($env{'browser.type'} eq 'safari') && ($env{'form.editxmltext'}) &&
	(($env{'form.problemmode'} eq 'view') \|\| ($env{'form.problemmode'} eq 'discard'))) {
	my $delimiter;
	if ($inside =~ /\$$/) {
	$delimiter = '$';
	} elsif ($inside =~ /\\([)\]])$/) {
	$delimiter = $1;
	}
	if ($delimiter) {
	&Apache::lonxml::warning(&mt('Insert a space between [_1] and [_2].',
	$delimiter,'</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 174 sub start_html {	Line 194 sub start_html {
my ($target,$token) = @_;	my ($target,$token) = @_;
my $currentstring = '';	my $currentstring = '';
if ($target eq 'web' \|\| $target eq 'edit' \|\| $target eq 'webgrade' ) {	if ($target eq 'web' \|\| $target eq 'edit' \|\| $target eq 'webgrade' ) {
# start_body() takes care of emitting the <html>	# start_body() takes care of emitting the <html>
} elsif ($target eq 'tex') {	} elsif ($target eq 'tex') {

$currentstring .= &latex_header();	$currentstring .= &latex_header();
Line 197 sub start_head {	Line 217 sub start_head {
my $currentstring = '';	my $currentstring = '';
if ($target eq 'web' \|\| $target eq 'webgrade') {	if ($target eq 'web' \|\| $target eq 'webgrade') {
&Apache::lonxml::startredirection();	&Apache::lonxml::startredirection();
}	}
return $currentstring;	return $currentstring;
}	}

Line 210 sub end_head {	Line 230 sub end_head {
if ($Apache::lonxml::redirection) {	if ($Apache::lonxml::redirection) {
$Apache::londefdef::head = &Apache::lonxml::endredirection();	$Apache::londefdef::head = &Apache::lonxml::endredirection();
}	}
}	}
return $currentstring;	return $currentstring;
}	}

Line 219 sub start_map {	Line 239 sub start_map {
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->[4];	$currentstring = $token->[4];
}	}
return $currentstring;	return $currentstring;
}	}

Line 228 sub end_map {	Line 248 sub end_map {
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 238 sub start_select {	Line 258 sub start_select {
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->[4];	$currentstring = $token->[4];
} elsif ($target eq 'tex') {	} elsif ($target eq 'tex') {
$Apache::londefdef::select=0;	$Apache::londefdef::select=0;
}	}
Line 249 sub end_select {	Line 269 sub end_select {
my ($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 259 sub start_option {	Line 279 sub start_option {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;	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') {	} elsif ($target eq 'tex') {
$Apache::londefdef::select++;	$Apache::londefdef::select++;
if ($Apache::londefdef::select == 1) {	if ($Apache::londefdef::select == 1) {
Line 275 sub end_option {	Line 295 sub end_option {
my ($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 = $token->[2];
} elsif ($target eq 'tex') {	} elsif ($target eq 'tex') {
$currentstring='}';	$currentstring='}';
}	}
Line 287 sub start_input {	Line 307 sub start_input {
my ($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->[4];	$currentstring = $token->[4];
}	}
return $currentstring;	return $currentstring;
}	}

Line 296 sub end_input {	Line 316 sub end_input {
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 306 sub start_textarea {	Line 326 sub start_textarea {
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->[4];	$currentstring = $token->[4];
}	}
return $currentstring;	return $currentstring;
}	}

Line 315 sub end_textarea {	Line 335 sub end_textarea {
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 325 sub start_form {	Line 345 sub start_form {
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->[4];	$currentstring = $token->[4];
}	}
return $currentstring;	return $currentstring;
}	}

Line 334 sub end_form {	Line 354 sub end_form {
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 344 sub start_title {	Line 364 sub start_title {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;	my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
my $currentstring = '';	my $currentstring = '';
if ($target eq 'web' \|\| $target eq 'webgrade') {	if ($target eq 'web' \|\| $target eq 'webgrade') {
$Apache::londefdef::title =	$Apache::londefdef::title =
&Apache::lonxml::get_all_text('/title',$parser,$style);	&Apache::lonxml::get_all_text('/title',$parser,$style);
} elsif ($target eq 'tex') {	} elsif ($target eq 'tex') {
$currentstring .= '\keephidden{Title of the document: '	$currentstring .= '\keephidden{Title of the document: ';
}	}
if ($target eq 'meta') {	if ($target eq 'meta') {
$currentstring='<title>';	$currentstring='<title>';
Line 363 sub end_title {	Line 383 sub end_title {
# start_title takes care of swallowing the title	# start_title takes care of swallowing the title
} elsif ($target eq 'tex') {	} elsif ($target eq 'tex') {
$currentstring .= '}';	$currentstring .= '}';
}	}
if ($target eq 'meta') {	if ($target eq 'meta') {
&end_output($target);	&end_output($target);
$currentstring='</title>';	$currentstring='</title>';
}	}
return $currentstring;	return $currentstring;
}	}

Line 535 sub end_accessrule {	Line 555 sub end_accessrule {
if ($args ne '') {	if ($args ne '') {
$currentstring = $token->[4];	$currentstring = $token->[4];
}	}
}	}
return $currentstring;	return $currentstring;
}	}

Line 544 sub generate_css_links {	Line 564 sub generate_css_links {
my $css_href = &Apache::lonnet::EXT('resource.0.cssfile');	my $css_href = &Apache::lonnet::EXT('resource.0.cssfile');
if ($css_href =~ /\S/) {	if ($css_href =~ /\S/) {
&Apache::lonxml::extlink($css_href);	&Apache::lonxml::extlink($css_href);
$links .=	$links .=
'<link rel="stylesheet" type="text/css" href="'.$css_href.'" />';	'<link rel="stylesheet" type="text/css" href="'.$css_href.'" />';
}	}
return $links;	return $links;
Line 579 sub start_body {	Line 599 sub start_body {
'text' => 'HTML Editor',	'text' => 'HTML Editor',
'href' => '',	'href' => '',
});	});
# breadcrumbs (and tools) will be created	# breadcrumbs (and tools) will be created
# in start_page->bodytag->innerregister	# in start_page->bodytag->innerregister
} else {	} else {
# FIXME Where are we?	# FIXME Where are we?
}	}

$currentstring =	my $args = {'add_entries' => $token->[2],
	'force_register' => 1,};
	if ($target eq 'web') {
	$args->{'print_suppress'} = 1;
	if ($env{'request.use_absolute'}) {
	$args->{'use_absolute'} = $env{'request.use_absolute'};
	}
	}
	$currentstring =
&Apache::loncommon::start_page($Apache::londefdef::title,	&Apache::loncommon::start_page($Apache::londefdef::title,
$Apache::londefdef::head	$Apache::londefdef::head
.$extra_head,	.$extra_head,$args);
{'add_entries' => $token->[2],
# 'no_title' => 1,
'force_register' => 1});

my $header = '';	my $header = '';
if ($env{'request.state'} ne 'published' &&	if ($env{'request.state'} ne 'published' &&
$env{'request.state'} ne 'construct') {	$env{'request.state'} ne 'construct') {
Line 634 sub edit_controls {	Line 658 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 682 sub end_body {	Line 712 sub end_body {
if ($target eq 'web' \|\| $target eq 'webgrade') {	if ($target eq 'web' \|\| $target eq 'webgrade') {
$currentstring .= &Apache::loncommon::end_page({'discussion' => 1});	$currentstring .= &Apache::loncommon::end_page({'discussion' => 1});
} elsif ($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}';
}	}
return $currentstring;	return $currentstring;
}	}

# \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. Same at the end of a \center but with a slightly	# of a table cell. Same at the end of a \center but with a slightly
# larger space .. hence center_correction and center_end_correction.	# larger space .. hence center_correction and center_end_correction.
#	#
sub center_correction { return '\vspace*{-6 mm}'; }	sub center_correction { return '\vspace*{-6 mm}'; }
sub center_end_correction { return '\vspace*{-7 mm}'; }	sub center_end_correction { return '\vspace*{-7 mm}'; }

#-- <center> tag (end tag required)	#-- <center> tag (end tag required)
Line 699 sub start_center {	Line 729 sub start_center {
my ($target,$token,$tagstack) = @_;	my ($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' \|\| $target eq 'webgrade') {	if ($target eq 'web' \|\| $target eq 'webgrade') {
$currentstring .= $token->[4];	$currentstring .= $token->[4];
} elsif ($target eq 'tex') {	} elsif ($target eq 'tex') {
if (&is_inside_of($tagstack, "table")) {	if (&is_inside_of($tagstack, "table")) {
$currentstring .= &center_correction();	$currentstring .= &center_correction();
}	}
$currentstring .= '\begin{center}';	$currentstring .= '\begin{center}';
}	}
return $currentstring;	return $currentstring;
}	}
Line 713 sub end_center {	Line 743 sub end_center {
my ($target,$token,$tagstack) = @_;	my ($target,$token,$tagstack) = @_;
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') {	} elsif ($target eq 'tex') {
$currentstring = '\end{center}';	$currentstring = '\end{center}';
if (&is_inside_of($tagstack, "table")) {	if (&is_inside_of($tagstack, "table")) {
$currentstring .= &center_end_correction();	$currentstring .= &center_end_correction();
}	}
Line 729 sub start_b {	Line 759 sub start_b {
my ($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->[4];	$currentstring = $token->[4];
} elsif ($target eq 'tex') {	} elsif ($target eq 'tex') {
&disable_para();	&disable_para();
$currentstring .= '\textbf{';	$currentstring .= '\textbf{';
}	}
return $currentstring;	return $currentstring;
}	}

Line 741 sub end_b {	Line 771 sub end_b {
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 = $token->[2];
} elsif ($target eq 'tex') {	} elsif ($target eq 'tex') {
&enable_para();	&enable_para();
$currentstring = '}';	$currentstring = '}';
}	}
return $currentstring;	return $currentstring;
}	}

Line 755 sub start_strong {	Line 785 sub start_strong {
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->[4];	$currentstring = $token->[4];
} elsif ($target eq 'tex') {	} elsif ($target eq 'tex') {
&disable_para();	&disable_para();
$currentstring = '\textbf{';	$currentstring = '\textbf{';
}	}
return $currentstring;	return $currentstring;
}	}

Line 767 sub end_strong {	Line 797 sub end_strong {
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 = $token->[2];
} elsif ($target eq 'tex') {	} elsif ($target eq 'tex') {
&enable_para();	&enable_para();
$currentstring = '}';	$currentstring = '}';
}	}
return $currentstring;	return $currentstring;
}	}
Line 793 sub start_h1 {	Line 823 sub start_h1 {
}	}
my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);	my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
if (not defined $TeXsize) {$TeXsize="large";}	if (not defined $TeXsize) {$TeXsize="large";}
$currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';	$currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
} elsif ($target eq 'meta') {	} elsif ($target eq 'meta') {
$currentstring.='<subject>';	$currentstring.='<subject>';
&start_output($target);	&start_output($target);
Line 808 sub end_h1 {	Line 838 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 ($align eq 'left') {
Line 820 sub end_h1 {	Line 850 sub end_h1 {
} elsif ($target eq 'meta') {	} elsif ($target eq 'meta') {
&end_output($target);	&end_output($target);
$currentstring='</subject>';	$currentstring='</subject>';
}	}
return $currentstring;	return $currentstring;
}	}

Line 842 sub start_h2 {	Line 872 sub start_h2 {
}	}
my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);	my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
if (not defined $TeXsize) {$TeXsize="large";}	if (not defined $TeXsize) {$TeXsize="large";}
$currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';	$currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
}	}
return $currentstring;	return $currentstring;
}	}

Line 863 sub end_h2 {	Line 893 sub end_h2 {
$post='}'.'\vskip 0 mm ';	$post='}'.'\vskip 0 mm ';
}	}
$currentstring .= '}}'.$post;	$currentstring .= '}}'.$post;
}	}
return $currentstring;	return $currentstring;
}	}

Line 885 sub start_h3 {	Line 915 sub start_h3 {
}	}
my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);	my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
if (not defined $TeXsize) {$TeXsize="large";}	if (not defined $TeXsize) {$TeXsize="large";}
$currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';	$currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
}	}
return $currentstring;	return $currentstring;
}	}

Line 906 sub end_h3 {	Line 936 sub end_h3 {
$post='}'.'\vskip 0 mm ';	$post='}'.'\vskip 0 mm ';
}	}
$currentstring .= '}}'.$post;	$currentstring .= '}}'.$post;
}	}
return $currentstring;	return $currentstring;
}	}

Line 928 sub start_h4 {	Line 958 sub start_h4 {
}	}
my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);	my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
if (not defined $TeXsize) {$TeXsize="large";}	if (not defined $TeXsize) {$TeXsize="large";}
$currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';	$currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
}	}
return $currentstring;	return $currentstring;
}	}

Line 949 sub end_h4 {	Line 979 sub end_h4 {
$post='}'.'\vskip 0 mm ';	$post='}'.'\vskip 0 mm ';
}	}
$currentstring .= '}}'.$post;	$currentstring .= '}}'.$post;
}	}
return $currentstring;	return $currentstring;
}	}

Line 971 sub start_h5 {	Line 1001 sub start_h5 {
}	}
my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);	my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
if (not defined $TeXsize) {$TeXsize="large";}	if (not defined $TeXsize) {$TeXsize="large";}
$currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';	$currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
}	}
return $currentstring;	return $currentstring;
}	}

Line 992 sub end_h5 {	Line 1022 sub end_h5 {
$post='}'.'\vskip 0 mm ';	$post='}'.'\vskip 0 mm ';
}	}
$currentstring .= '}}'.$post;	$currentstring .= '}}'.$post;
}	}
return $currentstring;	return $currentstring;
}	}

Line 1014 sub start_h6 {	Line 1044 sub start_h6 {
}	}
my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);	my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
if (not defined $TeXsize) {$TeXsize="large";}	if (not defined $TeXsize) {$TeXsize="large";}
$currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';	$currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{';
}	}
return $currentstring;	return $currentstring;
}	}

Line 1035 sub end_h6 {	Line 1065 sub end_h6 {
$post='}'.'\vskip 0 mm ';	$post='}'.'\vskip 0 mm ';
}	}
$currentstring .= '}}'.$post;	$currentstring .= '}}'.$post;
}	}
return $currentstring;	return $currentstring;
}	}

Line 1081 sub end_i {	Line 1111 sub end_i {
$currentstring .= $token->[2];	$currentstring .= $token->[2];
} elsif ($target eq 'tex') {	} elsif ($target eq 'tex') {
$currentstring .= '}';	$currentstring .= '}';
}	}
return $currentstring;	return $currentstring;
}	}

Line 1116 sub start_dfn {	Line 1146 sub start_dfn {
$currentstring .= $token->[4];	$currentstring .= $token->[4];
} elsif ($target eq 'tex') {	} elsif ($target eq 'tex') {
$currentstring .= '\textit{';	$currentstring .= '\textit{';
}	}
return $currentstring;	return $currentstring;
}	}

Line 1185 sub start_code {	Line 1215 sub start_code {
$currentstring .= $token->[4];	$currentstring .= $token->[4];
} elsif ($target eq 'tex') {	} elsif ($target eq 'tex') {
$currentstring .= '\texttt{';	$currentstring .= '\texttt{';
}	}
return $currentstring;	return $currentstring;
}	}

Line 1196 sub end_code {	Line 1226 sub end_code {
$currentstring .= $token->[2];	$currentstring .= $token->[2];
} elsif ($target eq 'tex') {	} elsif ($target eq 'tex') {
$currentstring .= '}';	$currentstring .= '}';
}	}
return $currentstring;	return $currentstring;
}	}

Line 1219 sub end_em {	Line 1249 sub end_em {
$currentstring .= $token->[2];	$currentstring .= $token->[2];
} elsif ($target eq 'tex') {	} elsif ($target eq 'tex') {
$currentstring .= '}';	$currentstring .= '}';
}	}
return $currentstring;	return $currentstring;
}	}

Line 1242 sub end_q {	Line 1272 sub end_q {
$currentstring .= $token->[2];	$currentstring .= $token->[2];
} elsif ($target eq 'tex') {	} elsif ($target eq 'tex') {
$currentstring .= '}';	$currentstring .= '}';
}	}
return $currentstring;	return $currentstring;
}	}

Line 1258 sub end_q {	Line 1288 sub end_q {
my $closing_string = ''; # String required to close <p>	my $closing_string = ''; # String required to close <p>

# Some tags are <p> fragile meaning that <p> inside of them	# Some tags are <p> fragile meaning that <p> inside of them
# does not work within TeX mode. This is managed via the	# does not work within TeX mode. This is managed via the
# counter below:	# counter below:
#	#

Line 1287 sub start_p {	Line 1317 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 1294 sub start_p {	Line 1328 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($tagstack, 'table')) {
Line 1354 sub start_br {	Line 1388 sub start_br {
if ($signal != 1) {	if ($signal != 1) {
$currentstring .= '\strut \\\\ \strut ';	$currentstring .= '\strut \\\\ \strut ';
}	}

}	}
return $currentstring;	return $currentstring;
}	}
Line 1376 sub start_big {	Line 1410 sub start_big {
$currentstring .= $token->[4];	$currentstring .= $token->[4];
} elsif ($target eq 'tex') {	} elsif ($target eq 'tex') {
$currentstring .= '{\large ';	$currentstring .= '{\large ';
}	}
return $currentstring;	return $currentstring;
}	}

Line 1419 sub start_basefont {	Line 1453 sub start_basefont {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;	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') {	} elsif ($target eq 'tex') {
my $basesize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);	my $basesize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
if (defined $basesize) {	if (defined $basesize) {
Line 1433 sub end_basefont {	Line 1467 sub end_basefont {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;	my ($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') {	} elsif ($target eq 'tex') {
my $basesize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);	my $basesize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
if (defined $basesize) {	if (defined $basesize) {
Line 1449 sub start_font {	Line 1483 sub start_font {
my $currentstring = '';	my $currentstring = '';
if ($target eq 'web' \|\| $target eq 'webgrade') {	if ($target eq 'web' \|\| $target eq 'webgrade') {
my $face=&Apache::lonxml::get_param('face',$parstack,$safeeval);	my $face=&Apache::lonxml::get_param('face',$parstack,$safeeval);
$currentstring = $token->[4];	$currentstring = $token->[4];
} elsif ($target eq 'tex') {	} elsif ($target eq 'tex') {
my $fontsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);	my $fontsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
if (defined $fontsize) {	if (defined $fontsize) {
Line 1463 sub end_font {	Line 1497 sub end_font {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;	my ($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->[2];	$currentstring = $token->[2];
} elsif ($target eq 'tex') {	} elsif ($target eq 'tex') {
my $fontsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);	my $fontsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
if (defined $fontsize) {	if (defined $fontsize) {
Line 1472 sub end_font {	Line 1506 sub end_font {
}	}
return $currentstring;	return $currentstring;
}	}

#-- <strike> tag (end tag required)	#-- <strike> tag (end tag required)
sub start_strike {	sub start_strike {
my ($target,$token) = @_;	my ($target,$token) = @_;
Line 1481 sub start_strike {	Line 1515 sub start_strike {
$currentstring .= $token->[4];	$currentstring .= $token->[4];
} elsif ($target eq 'tex') {	} elsif ($target eq 'tex') {
&Apache::lonxml::startredirection();	&Apache::lonxml::startredirection();
}	}
return $currentstring;	return $currentstring;
}	}

Line 1492 sub end_strike {	Line 1526 sub end_strike {
$currentstring .= $token->[2];	$currentstring .= $token->[2];
} elsif ($target eq 'tex') {	} elsif ($target eq 'tex') {
$currentstring=&Apache::lonxml::endredirection();	$currentstring=&Apache::lonxml::endredirection();
$currentstring=~s/(\S)(\s+)(\S)/$1\}$2\\underline\{$3/g;	$currentstring=~s/(\S)(\s+)(\S)/$1\}$2\\underline\{$3/g;
$currentstring=~s/^\s*(\S)/\\underline\{$1/;	$currentstring=~s/^\s*(\S)/\\underline\{$1/;
$currentstring=~s/(\S)\s*$/$1\}/;	$currentstring=~s/(\S)\s*$/$1\}/;
}	}
return $currentstring;	return $currentstring;
Line 1507 sub start_s {	Line 1541 sub start_s {
$currentstring .= $token->[4];	$currentstring .= $token->[4];
} elsif ($target eq 'tex') {	} elsif ($target eq 'tex') {
&Apache::lonxml::startredirection();	&Apache::lonxml::startredirection();
}	}
return $currentstring;	return $currentstring;
}	}

Line 1533 sub start_sub {	Line 1567 sub start_sub {
$currentstring .= $token->[4];	$currentstring .= $token->[4];
} elsif ($target eq 'tex') {	} elsif ($target eq 'tex') {
$currentstring .= '\raisebox{-\smallskipamount}{\scriptsize{';	$currentstring .= '\raisebox{-\smallskipamount}{\scriptsize{';
}	}
return $currentstring;	return $currentstring;
}	}

Line 1556 sub start_sup {	Line 1590 sub start_sup {
$currentstring .= $token->[4];	$currentstring .= $token->[4];
} elsif ($target eq 'tex') {	} elsif ($target eq 'tex') {
$currentstring .= '\raisebox{\smallskipamount}{\scriptsize{';	$currentstring .= '\raisebox{\smallskipamount}{\scriptsize{';
}	}
return $currentstring;	return $currentstring;
}	}

Line 1580 sub start_hr {	Line 1614 sub start_hr {
} elsif ($target eq 'tex') {	} elsif ($target eq 'tex') {

# <hr /> can't be inside of <sup><sub> thank you LaTeX.	# <hr /> can't be inside of <sup><sub> thank you LaTeX.
#	#
my $restart_sub = 0;	my $restart_sub = 0;
my $restart_sup = 0;	my $restart_sup = 0;

Line 1590 sub start_hr {	Line 1624 sub start_hr {

if (&is_inside_of($tagstack, "sub")) {	if (&is_inside_of($tagstack, "sub")) {
$restart_sub = 1;	$restart_sub = 1;
$currentstring .= &end_sub($target, $token, $tagstack,	$currentstring .= &end_sub($target, $token, $tagstack,
$parstack, $parser, $safeeval);	$parstack, $parser, $safeeval);
}	}
if (&is_inside_of($tagstack, "sup")) {	if (&is_inside_of($tagstack, "sup")) {
Line 1629 sub start_hr {	Line 1663 sub start_hr {
$currentstring .= &start_sup($target, $token, $tagstack,	$currentstring .= &start_sup($target, $token, $tagstack,
$parstack, $parser, $safeeval);	$parstack, $parser, $safeeval);
}	}
}	}
return $currentstring;	return $currentstring;
}	}

Line 1656 sub start_div {	Line 1690 sub start_div {
my $currentstring = &end_p(); # Close enclosing para.	my $currentstring = &end_p(); # Close enclosing para.
if ($target eq 'web' \|\| $target eq 'webgrade') {	if ($target eq 'web' \|\| $target eq 'webgrade') {
$currentstring .= $token->[4];	$currentstring .= $token->[4];
}	}
if ($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	# If inside a table row, we must let the table logic
# do the alignment, however.	# do the alignment, however.
#	#

my $endstring = '';	my $endstring = '';

Line 1672 sub start_div {	Line 1706 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_end_correction();	$endstring .= &center_end_correction();
}	}
}	}
elsif ($align eq 'right') {	elsif ($align eq 'right') {
Line 1728 sub start_a {	Line 1762 sub start_a {
if (!&Apache::lonnet::allowed('bre',$linkurl)) {	if (!&Apache::lonnet::allowed('bre',$linkurl)) {
if (&Apache::lonnet::is_on_map($url)) {	if (&Apache::lonnet::is_on_map($url)) {
&Apache::lonxml::extlink($linkurl);	&Apache::lonxml::extlink($linkurl);
	} elsif ($env{'request.course.id'}) {
	my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
	my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
	if ($linkurl =~ m{^([^/]\|/uploaded/$cdom/$cnum/(docs\|supplemental)/)}) {
	my $cleanhref = &clean_docs_httpref($linkurl,$url,$cdom,$cnum);
	if ($cleanhref) {
	&Apache::lonxml::extlink($cleanhref);
	}
	}
}	}
}	}
}	}
Line 1773 sub start_li {	Line 1816 sub start_li {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;	my ($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') {	} elsif ($target eq 'tex') {
my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,0);	my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,0);
my $value=&Apache::lonxml::get_param('value',$parstack,$safeeval,undef,0);	my $value=&Apache::lonxml::get_param('value',$parstack,$safeeval,undef,0);
#FIXME need to support types i and I	#FIXME need to support types i and I
if ($type=~/disc/) {	if ($type=~/disc/) {
$currentstring .= ' \item[$\bullet$] ';	$currentstring .= ' \item[$\bullet$] ';
} elsif ($type=~/circle/) {	} elsif ($type=~/circle/) {
Line 1794 sub start_li {	Line 1837 sub start_li {
$currentstring .= ' \item['.$value.'] ';	$currentstring .= ' \item['.$value.'] ';
} else {	} else {
$currentstring .= ' \item ';	$currentstring .= ' \item ';
}	}
$Apache::londefdef::list_index++;	$Apache::londefdef::list_index++;
}	}
return $currentstring;	return $currentstring;
Line 1804 sub end_li {	Line 1847 sub end_li {
my ($target,$token) = @_;	my ($target,$token) = @_;
my $currentstring = &end_p(); # In case there's a <p> in the <li>	my $currentstring = &end_p(); # In case there's a <p> in the <li>
if ($target eq 'web' \|\| $target eq 'webgrade') {	if ($target eq 'web' \|\| $target eq 'webgrade') {
$currentstring .= $token->[2];	$currentstring .= $token->[2];
}	}
return $currentstring;	return $currentstring;
}	}

Line 1817 sub start_u {	Line 1860 sub start_u {
$currentstring .= $token->[4];	$currentstring .= $token->[4];
} elsif ($target eq 'tex') {	} elsif ($target eq 'tex') {
&Apache::lonxml::startredirection();	&Apache::lonxml::startredirection();
}	}
return $currentstring;	return $currentstring;
}	}

Line 1840 sub start_ul {	Line 1883 sub start_ul {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;	my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
my $currentstring = &end_p(); # Close off enclosing list.	my $currentstring = &end_p(); # Close off enclosing list.
if ($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 $TeXtype=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,0);	my $TeXtype=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,0);
$Apache::londefdef::list_index=0;	$Apache::londefdef::list_index=0;
if ($TeXtype eq 'disc') {	if ($TeXtype eq 'disc') {
$currentstring .= '\renewcommand{\labelitemi}{$\bullet$}'.	$currentstring .= '\renewcommand{\labelitemi}{$\bullet$}'.
'\renewcommand{\labelitemii}{$\bullet$}'.	'\renewcommand{\labelitemii}{$\bullet$}'.
'\renewcommand{\labelitemiii}{$\bullet$}'.	'\renewcommand{\labelitemiii}{$\bullet$}'.
'\renewcommand{\labelitemiv}{$\bullet$}';	'\renewcommand{\labelitemiv}{$\bullet$}';
} elsif ($TeXtype eq 'circle') {	} elsif ($TeXtype eq 'circle') {
$currentstring .= '\renewcommand{\labelitemi}{$\circ$}'.	$currentstring .= '\renewcommand{\labelitemi}{$\circ$}'.
'\renewcommand{\labelitemii}{$\circ$}'.	'\renewcommand{\labelitemii}{$\circ$}'.
'\renewcommand{\labelitemiii}{$\circ$}'.	'\renewcommand{\labelitemiii}{$\circ$}'.
'\renewcommand{\labelitemiv}{$\circ$}';	'\renewcommand{\labelitemiv}{$\circ$}';
} elsif ($TeXtype eq 'square') {	} elsif ($TeXtype eq 'square') {
$currentstring .= '\renewcommand{\labelitemi}{$\diamond$}'.	$currentstring .= '\renewcommand{\labelitemi}{$\diamond$}'.
'\renewcommand{\labelitemii}{$\diamond$}'.	'\renewcommand{\labelitemii}{$\diamond$}'.
'\renewcommand{\labelitemiii}{$\diamond$}'.	'\renewcommand{\labelitemiii}{$\diamond$}'.
'\renewcommand{\labelitemiv}{$\diamond$}';	'\renewcommand{\labelitemiv}{$\diamond$}';
}	}
$currentstring .= '\strut \begin{itemize}';	$currentstring .= '\strut \begin{itemize}';
}	}
return $currentstring;	return $currentstring;
}	}

Line 1869 sub end_ul {	Line 1912 sub end_ul {
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 = $token->[2];
} elsif ($target eq 'tex') {	} elsif ($target eq 'tex') {
$currentstring = '\end{itemize} \renewcommand{\labelitemi}{$\bullet$}'.	$currentstring = '\end{itemize} \renewcommand{\labelitemi}{$\bullet$}'.
'\renewcommand{\labelitemii}{$\bullet$}'.	'\renewcommand{\labelitemii}{$\bullet$}'.
'\renewcommand{\labelitemiii}{$\bullet$}'.	'\renewcommand{\labelitemiii}{$\bullet$}'.
'\renewcommand{\labelitemiv}{$\bullet$}\strut ';	'\renewcommand{\labelitemiv}{$\bullet$}\strut ';
}	}
return $currentstring;	return $currentstring;
}	}

Line 1884 sub start_menu {	Line 1927 sub start_menu {
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->[4];	$currentstring = $token->[4];
} elsif ($target eq 'tex') {	} elsif ($target eq 'tex') {
$currentstring = " \\begin{itemize} ";	$currentstring = " \\begin{itemize} ";
}	}
return $currentstring;	return $currentstring;
}	}

Line 1895 sub end_menu {	Line 1938 sub end_menu {
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 = $token->[2];
} elsif ($target eq 'tex') {	} elsif ($target eq 'tex') {
$currentstring = " \\end{itemize}";	$currentstring = " \\end{itemize}";
}	}
return $currentstring;	return $currentstring;
}	}

Line 1907 sub start_dir {	Line 1950 sub start_dir {
my ($target,$token) = @_;	my ($target,$token) = @_;
my $currentstring = &end_p(); # In case there's a <p> prior to the list.	my $currentstring = &end_p(); # In case there's a <p> prior to the list.
if ($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 .= " \\begin{itemize} ";	$currentstring .= " \\begin{itemize} ";
}	}
return $currentstring;	return $currentstring;
}	}

Line 1918 sub end_dir {	Line 1961 sub end_dir {
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 = $token->[2];
} elsif ($target eq 'tex') {	} elsif ($target eq 'tex') {
$currentstring = " \\end{itemize}";	$currentstring = " \\end{itemize}";
}	}
return $currentstring;	return $currentstring;
}	}

Line 1930 sub start_ol {	Line 1973 sub start_ol {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;	my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
my $currentstring = &end_p(); # In case there's a <p> prior to the list.	my $currentstring = &end_p(); # In case there's a <p> prior to the list.
if ($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') {
$Apache::londefdef::list_index=0;	$Apache::londefdef::list_index=0;
my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,0);	my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,0);
if ($type eq '1') {	if ($type eq '1') {
$currentstring .= '\renewcommand{\labelenumi}{\arabic{enumi}.}'.	$currentstring .= '\renewcommand{\labelenumi}{\arabic{enumi}.}'.
'\renewcommand{\labelenumii}{\arabic{enumii}.}'.	'\renewcommand{\labelenumii}{\arabic{enumii}.}'.
'\renewcommand{\labelenumiii}{\arabic{enumiii}.}'.	'\renewcommand{\labelenumiii}{\arabic{enumiii}.}'.
'\renewcommand{\labelenumiv}{\arabic{enumiv}.}';	'\renewcommand{\labelenumiv}{\arabic{enumiv}.}';
} elsif ($type eq 'A') {	} elsif ($type eq 'A') {
$currentstring .= '\renewcommand{\labelenumi}{\Alph{enumi}.}'.	$currentstring .= '\renewcommand{\labelenumi}{\Alph{enumi}.}'.
'\renewcommand{\labelenumii}{\Alph{enumii}.}'.	'\renewcommand{\labelenumii}{\Alph{enumii}.}'.
'\renewcommand{\labelenumiii}{\Alph{enumiii}.}'.	'\renewcommand{\labelenumiii}{\Alph{enumiii}.}'.
'\renewcommand{\labelenumiv}{\Alph{enumiv}.}';	'\renewcommand{\labelenumiv}{\Alph{enumiv}.}';
} elsif ($type eq 'a') {	} elsif ($type eq 'a') {
Line 1960 sub start_ol {	Line 2003 sub start_ol {
'\renewcommand{\labelenumiii}{\Roman{enumiii}.}'.	'\renewcommand{\labelenumiii}{\Roman{enumiii}.}'.
'\renewcommand{\labelenumiv}{\Roman{enumiv}.}';	'\renewcommand{\labelenumiv}{\Roman{enumiv}.}';
}	}
$currentstring .= '\strut \begin{enumerate}';	$currentstring .= '\strut \begin{enumerate}';
}	}
return $currentstring;	return $currentstring;
}	}

Line 1969 sub end_ol {	Line 2012 sub end_ol {
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 = $token->[2];
} elsif ($target eq 'tex') {	} elsif ($target eq 'tex') {
$currentstring = '\end{enumerate}\renewcommand{\labelenumi}{\arabic{enumi}.}'.	$currentstring = '\end{enumerate}\renewcommand{\labelenumi}{\arabic{enumi}.}'.
'\renewcommand{\labelenumii}{\arabic{enumii}.}'.	'\renewcommand{\labelenumii}{\arabic{enumii}.}'.
'\renewcommand{\labelenumiii}{\arabic{enumiii}.}'.	'\renewcommand{\labelenumiii}{\arabic{enumiii}.}'.
'\renewcommand{\labelenumiv}{\arabic{enumiv}.}\strut ';	'\renewcommand{\labelenumiv}{\arabic{enumiv}.}\strut ';
}	}
return $currentstring;	return $currentstring;
}	}

Line 1984 sub start_dl {	Line 2027 sub start_dl {
my ($target,$token) = @_;	my ($target,$token) = @_;
my $currentstring = &end_p(); # In case there's a <p> unclosed prior to the list.	my $currentstring = &end_p(); # In case there's a <p> unclosed prior to the list.
if ($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 .= '\begin{description}';	$currentstring .= '\begin{description}';
$Apache::londefdef::DL++;	$Apache::londefdef::DL++;
Line 1992 sub start_dl {	Line 2035 sub start_dl {
$Apache::londefdef::DD[$Apache::londefdef::DL]=0;	$Apache::londefdef::DD[$Apache::londefdef::DL]=0;
$Apache::londefdef::DT[$Apache::londefdef::DL]=0;	$Apache::londefdef::DT[$Apache::londefdef::DL]=0;
$Apache::londefdef::seenDT[$Apache::londefdef::DL]=0;	$Apache::londefdef::seenDT[$Apache::londefdef::DL]=0;
}	}
return $currentstring;	return $currentstring;
}	}

Line 2000 sub end_dl {	Line 2043 sub end_dl {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;	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->[2];	$currentstring = $token->[2];
} elsif ($target eq 'tex') {	} elsif ($target eq 'tex') {
if ($Apache::londefdef::DT[-1]) { &end_dt(@_); }	if ($Apache::londefdef::DT[-1]) { &end_dt(@_); }
if ($Apache::londefdef::DD[-1]) { &end_dd(@_); }	if ($Apache::londefdef::DD[-1]) { &end_dd(@_); }
Line 2008 sub end_dl {	Line 2051 sub end_dl {
$currentstring.=' '.$element.' ';	$currentstring.=' '.$element.' ';
}	}
pop(@Apache::londefdef::description);	pop(@Apache::londefdef::description);
$currentstring.='\end{description}';	$currentstring.='\end{description}';
delete($Apache::londefdef::DD[$Apache::londefdef::DL]);	delete($Apache::londefdef::DD[$Apache::londefdef::DL]);
delete($Apache::londefdef::DT[$Apache::londefdef::DL]);	delete($Apache::londefdef::DT[$Apache::londefdef::DL]);
delete($Apache::londefdef::seenDT[$Apache::londefdef::DL]);	delete($Apache::londefdef::seenDT[$Apache::londefdef::DL]);
$Apache::londefdef::DL--;	$Apache::londefdef::DL--;
}	}
return $currentstring;	return $currentstring;
}	}

Line 2022 sub start_dt {	Line 2065 sub start_dt {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;	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') {	} elsif ($target eq 'tex') {
if ($Apache::londefdef::DT[-1]) { &end_dt(@_); }	if ($Apache::londefdef::DT[-1]) { &end_dt(@_); }
if ($Apache::londefdef::DD[-1]) { &end_dd(@_); }	if ($Apache::londefdef::DD[-1]) { &end_dd(@_); }
&Apache::lonxml::startredirection();	&Apache::lonxml::startredirection();
$Apache::londefdef::DT[-1]++;	$Apache::londefdef::DT[-1]++;
$Apache::londefdef::seenDT[-1]=1;	$Apache::londefdef::seenDT[-1]=1;
}	}
return $currentstring;	return $currentstring;
}	}

Line 2037 sub end_dt {	Line 2080 sub end_dt {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;	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->[2];	$currentstring = $token->[2];
} elsif ($target eq 'tex') {	} elsif ($target eq 'tex') {
if ($Apache::londefdef::DT[-1]) {	if ($Apache::londefdef::DT[-1]) {
my $data=&item_cleanup();	my $data=&item_cleanup();
push(@{$Apache::londefdef::description[-1]},'\item['.$data.'] \strut \vskip 0mm');	push(@{$Apache::londefdef::description[-1]},'\item['.$data.'] \strut \vskip 0mm');
$Apache::londefdef::DT[-1]--;	$Apache::londefdef::DT[-1]--;
}	}
}	}
return $currentstring;	return $currentstring;
}	}

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 2060 sub start_dd {	Line 2103 sub start_dd {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;	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') {	} elsif ($target eq 'tex') {
if ($Apache::londefdef::DT[-1]) { &end_dt(@_); }	if ($Apache::londefdef::DT[-1]) { &end_dt(@_); }
if ($Apache::londefdef::DD[-1]) { &end_dd(@_);}	if ($Apache::londefdef::DD[-1]) { &end_dd(@_);}
Line 2071 sub start_dd {	Line 2114 sub start_dd {
$Apache::londefdef::description[-1]->[-1].=' \strut ';	$Apache::londefdef::description[-1]->[-1].=' \strut ';
$Apache::londefdef::DD[-1]++;	$Apache::londefdef::DD[-1]++;
&Apache::lonxml::startredirection();	&Apache::lonxml::startredirection();
}	}
return $currentstring;	return $currentstring;
}	}

Line 2079 sub end_dd {	Line 2122 sub end_dd {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;	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->[2];	$currentstring = $token->[2];
} elsif ($target eq 'tex') {	} elsif ($target eq 'tex') {
$Apache::londefdef::description[-1]->[-1].=	$Apache::londefdef::description[-1]->[-1].=
&Apache::lonxml::endredirection().' \vskip 0mm ';	&Apache::lonxml::endredirection().' \vskip 0mm ';
Line 2091 sub end_dd {	Line 2134 sub end_dd {
#-- <table> tag (end tag required)	#-- <table> tag (end tag required)
# <table> also ends any prior <p> that is not closed.	# <table> also ends any prior <p> that is not closed.
# but, unless I allow <p>'s to nest, that's the	# but, unless I allow <p>'s to nest, that's the
# only way I could think of to allow <p> in	# only way I could think of to allow <p> in
# <tr> <th> bodies	# <tr> <th> bodies
#	#
#list of supported attributes: border,width,TeXwidth,TeXtheme	#list of supported attributes: border,width,TeXwidth,TeXtheme
Line 2101 sub start_table {	Line 2144 sub start_table {
my $textwidth = '';	my $textwidth = '';
my $currentstring = &end_p();	my $currentstring = &end_p();
if ($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') {
&disable_para(); # Can't have paras in a table.	&disable_para(); # Can't have paras in a table.

Line 2169 sub start_table {	Line 2212 sub start_table {
}	}
return $currentstring;	return $currentstring;
}	}

sub end_table {	sub end_table {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;	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->[2];	$currentstring = $token->[2];
} elsif ($target eq 'tex') {	} elsif ($target eq 'tex') {


Line 2194 sub start_tr {	Line 2237 sub start_tr {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;	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') {	} elsif ($target eq 'tex') {

my $align = &Apache::lonxml::get_param('align', $parstack, $safeeval, undef, 1);	my $align = &Apache::lonxml::get_param('align', $parstack, $safeeval, undef, 1);
Line 2228 sub start_tr {	Line 2271 sub start_tr {
push @ {$Apache::londefdef::table[-1]{'maxlen'}}, [];	push @ {$Apache::londefdef::table[-1]{'maxlen'}}, [];
push @ {$Apache::londefdef::table[-1]{'content'}}, [];	push @ {$Apache::londefdef::table[-1]{'content'}}, [];
}	}
}	}
return $currentstring;	return $currentstring;
}	}

sub end_tr {	sub end_tr {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;	my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
my $currentstring = &end_p(); # Close any pending <p> in the row.	my $currentstring = &end_p(); # Close any pending <p> in the row.
if ($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') {

# In case the user is missing a </td> or </th> tag:	# In case the user is missing a </td> or </th> tag:

if ($Apache::londefdef::TD_redirection) {	if ($Apache::londefdef::TD_redirection) {
&end_td_tex($parstack,$parser,$safeeval);	&end_td_tex($parstack,$parser,$safeeval);
}	}
$Apache::londefdef::table[-1]->end_row();	$Apache::londefdef::table[-1]->end_row();

Line 2252 sub end_tr {	Line 2295 sub end_tr {

if (0) {	if (0) {
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	# Counter columns must be the maximum number of columns seen
# in the table so far so:	# in the table so far so:
Line 2271 sub start_td {	Line 2314 sub start_td {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;	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') {	} elsif ($target eq 'tex') {
$Apache::londefdef::TD_redirection = 1;	$Apache::londefdef::TD_redirection = 1;
&tag_check('tr','td',$tagstack,$parstack,$parser,$safeeval);	&tag_check('tr','td',$tagstack,$parstack,$parser,$safeeval);
}	}
return $currentstring;	return $currentstring;
}	}

sub tag_check {	sub tag_check {
my ($good_tag,$bad_tag,$tagstack,$parstack,$parser,$safeeval) = @_;	my ($good_tag,$bad_tag,$tagstack,$parstack,$parser,$safeeval) = @_;
my @ar=@$parstack;	my @ar=@$parstack;
for (my $i=$#ar-1;$i>=0;$i--) {	for (my $i=$#ar-1;$i>=0;$i--) {
if (lc($$tagstack[$i]) eq $good_tag) {	if (lc($$tagstack[$i]) eq $good_tag) {
&start_td_tex($parstack,$parser,$safeeval);	&start_td_tex($parstack,$parser,$safeeval);
Line 2303 sub tag_check {	Line 2346 sub tag_check {
sub cell_config_hash {	sub cell_config_hash {
my ($align, $rowspan, $colspan, $width) = @_;	my ($align, $rowspan, $colspan, $width) = @_;
if ($rowspan ne '') {	if ($rowspan ne '') {
$rowspan =~ s/^\s+\|\s+$//g;	$rowspan =~ s/^\s+\|\s+$//g;
}	}
if ($colspan ne '') {	if ($colspan ne '') {
$colspan =~ s/^\s+\|\s+$//g;	$colspan =~ s/^\s+\|\s+$//g;
Line 2323 sub cell_config_hash {	Line 2366 sub cell_config_hash {
}	}
return \%config;	return \%config;
}	}

sub start_td_tex {	sub start_td_tex {
my ($parstack,$parser,$safeeval) = @_;	my ($parstack,$parser,$safeeval) = @_;

Line 2340 sub start_td_tex {	Line 2383 sub start_td_tex {

my $table = $Apache::londefdef::table[-1];	my $table = $Apache::londefdef::table[-1];
$table->add_cell('', $config);	$table->add_cell('', $config);


#------------------------------------------------	#------------------------------------------------
# Old table code.	# Old table code.
Line 2378 sub end_td_tex {	Line 2421 sub end_td_tex {
if (0) {	if (0) {
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 $current_column = $Apache::londefdef::table[-1]{'counter_columns'};	my $current_column = $Apache::londefdef::table[-1]{'counter_columns'};
my $data = &Apache::lonxml::endredirection();	my $data = &Apache::lonxml::endredirection();

# The rowspan array of the table indicates which cells are part of a span.	# The rowspan array of the table indicates which cells are part of a span.
Line 2388 sub end_td_tex {	Line 2431 sub end_td_tex {
# If this and subsequent cells are part of a rowspan, we must	# If this and subsequent cells are part of a rowspan, we must
# push along the row until we find one that is not.	# push along the row until we find one that is not.

while ((defined $Apache::londefdef::table[-1]{'rowspan'}[$current_row] [$current_column])	while ((defined $Apache::londefdef::table[-1]{'rowspan'}[$current_row] [$current_column])
&& ($Apache::londefdef::table[-1]{'rowspan'}[$current_row][$current_column] =~ /[\^\_]/)) {	&& ($Apache::londefdef::table[-1]{'rowspan'}[$current_row][$current_column] =~ /[\^\_]/)) {
# Part of a span.	# Part of a span.
push @ {$Apache::londefdef::table[-1]{'content'}[-1]}, '';	push @ {$Apache::londefdef::table[-1]{'content'}[-1]}, '';
$current_column++;	$current_column++;
}	}
$Apache::londefdef::table[-1]{'counter_columns'} = $current_column;	$Apache::londefdef::table[-1]{'counter_columns'} = $current_column;


# Get the column and row spans.	# Get the column and row spans.
# Colspan can be done via \multicolumn if I can figure out the data structs.	# Colspan can be done via \multicolumn if I can figure out the data structs.
Line 2471 sub end_td_tex {	Line 2514 sub end_td_tex {
push @ {$Apache::londefdef::table[-1]{'minlen'}[$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';	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/;
$data=~s/(.*\S)\s+$/$1/;	$data=~s/(.*\S)\s+$/$1/;
$data=~s/(\s)+/$1/;	$data=~s/(\s)+/$1/;
my ($current_length,$min_length)=(0,0);	my ($current_length,$min_length)=(0,0);
Line 2504 sub end_td_tex {	Line 2547 sub end_td_tex {
push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$current_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;	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.


my $nested_count = $#{$Apache::londefdef::table[-1]{'include'}}; # This one is constant...	my $nested_count = $#{$Apache::londefdef::table[-1]{'include'}}; # This one is constant...
for (my $in=0; $in<=$nested_count; $in++) {	for (my $in=0; $in<=$nested_count; $in++) {
my $nested = shift @{$Apache::londefdef::table[-1]{'include'}};	my $nested = shift @{$Apache::londefdef::table[-1]{'include'}};
$nested =~ s/\\end\{tabular\}\\strut\\\\/\\end\{tabular\}/;	$nested =~ s/\\end\{tabular\}\\strut\\\\/\\end\{tabular\}/;
# $data=~s/\\keephidden\{NEW TABLE ENTRY\}/$Apache::londefdef::table[-1]{'include'}[$in]/;	# $data=~s/\\keephidden\{NEW TABLE ENTRY\}/$Apache::londefdef::table[-1]{'include'}[$in]/;
Line 2549 sub end_td {	Line 2592 sub end_td {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;	my ($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->[2];	$currentstring = $token->[2];
} elsif ($target eq 'tex') {	} elsif ($target eq 'tex') {
$Apache::londefdef::TD_redirection =0;	$Apache::londefdef::TD_redirection =0;
&end_td_tex($parstack,$parser,$safeeval);	&end_td_tex($parstack,$parser,$safeeval);
Line 2562 sub start_th {	Line 2605 sub start_th {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;	my ($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') {	} elsif ($target eq 'tex') {
$Apache::londefdef::TD_redirection = 1;	$Apache::londefdef::TD_redirection = 1;
&tagg_check('tr','th',$tagstack,$parstack,$parser,$safeeval);	&tagg_check('tr','th',$tagstack,$parstack,$parser,$safeeval);
}	}
return $currentstring;	return $currentstring;
}	}

sub tagg_check {	sub tagg_check {
my ($good_tag,$bad_tag,$tagstack,$parstack,$parser,$safeeval) = @_;	my ($good_tag,$bad_tag,$tagstack,$parstack,$parser,$safeeval) = @_;
my @ar=@$parstack;	my @ar=@$parstack;
for (my $i=$#ar-1;$i>=0;$i--) {	for (my $i=$#ar-1;$i>=0;$i--) {
if (lc($$tagstack[$i]) eq $good_tag) {	if (lc($$tagstack[$i]) eq $good_tag) {
&start_th_tex($parstack,$parser,$safeeval);	&start_th_tex($parstack,$parser,$safeeval);
Line 2586 sub tagg_check {	Line 2629 sub tagg_check {
}	}
return '';	return '';
}	}

sub start_th_tex {	sub start_th_tex {
my ($parstack,$parser,$safeeval) = @_;	my ($parstack,$parser,$safeeval) = @_;

Line 2665 sub end_th_tex {	Line 2708 sub end_th_tex {
push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$fwidth;	push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$fwidth;
push @ {$Apache::londefdef::table[-1]{'minlen'}[$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';	push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
} else {	} else {
$data=~s/^\s+(\S.*)/$1/;	$data=~s/^\s+(\S.*)/$1/;
$data=~s/(.*\S)\s+$/$1/;	$data=~s/(.*\S)\s+$/$1/;
$data=~s/(\s)+/$1/;	$data=~s/(\s)+/$1/;
my ($current_length,$min_length)=(0,0);	my ($current_length,$min_length)=(0,0);
Line 2695 sub end_th_tex {	Line 2738 sub end_th_tex {
push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';	push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0';
push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$current_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;	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++) {	for (my $in=0; $in<=$#{$Apache::londefdef::table[-1]{'include'}};$in++) {
$data=~s/\\keephidden\{NEW TABLE ENTRY\}/$Apache::londefdef::table[-1]{'include'}[$in]/;	$data=~s/\\keephidden\{NEW TABLE ENTRY\}/$Apache::londefdef::table[-1]{'include'}[$in]/;
}	}
#make data bold	#make data bold
Line 2711 sub end_th {	Line 2754 sub end_th {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;	my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
my $currentstring = &end_p(); # Close any open <p> in the row.	my $currentstring = &end_p(); # Close any open <p> in the row.
if ($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') {
$Apache::londefdef::TD_redirection =0;	$Apache::londefdef::TD_redirection =0;
&end_th_tex($parstack,$parser,$safeeval);	&end_th_tex($parstack,$parser,$safeeval);
}	}
return $currentstring;	return $currentstring;
}	}

#-- <img> tag (end tag forbidden)	#-- <img> tag (end tag forbidden)
#	#
# Render the <IMG> tag.	# Render the <IMG> tag.
# <IMG> has the following attributes (in addition to the	# <IMG> has the following attributes (in addition to the
# standard HTML ones:	# standard HTML ones:
# TeXwrap - Governs how the tex target will try to wrap text around	# TeXwrap - Governs how the tex target will try to wrap text around
# horizontally aligned images.	# horizontally aligned images.
# TeXwidth - The width of the image when rendered for print (mm).	# TeXwidth - The width of the image when rendered for print (mm).
# TeXheight - The height of the image when rendered for print (mm)	# TeXheight - The height of the image when rendered for print (mm)
# (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,$style) = @_;	my ($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 (! $src &&	if (! $src &&
($target eq 'web' \|\| $target eq 'webgrade' \|\| $target eq 'tex')	($target eq 'web' \|\| $target eq 'webgrade' \|\| $target eq 'tex')
) {	) {
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;

# Render unto browsers that which are the browser's...	# Render unto browsers that which are the browser's...

if ($target eq 'web' \|\| $target eq 'webgrade') {	if ($target eq 'web' \|\| $target eq 'webgrade') {
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 2761 sub start_img {	Line 2808 sub start_img {
# simulate the alignments offered by html.	# simulate the alignments offered by html.
#	#
#	#
my $align = lc(&Apache::lonxml::get_param('align',	my $align = lc(&Apache::lonxml::get_param('align',
$parstack,	$parstack,
$safeeval,	$safeeval,
undef,1));	undef,1));
Line 2771 sub start_img {	Line 2818 sub start_img {
#	#
&Apache::lonxml::debug("Alignemnt = $align");	&Apache::lonxml::debug("Alignemnt = $align");
# LaTeX's image/text wrapping is really bad since it wants to	# LaTeX's image/text wrapping is really bad since it wants to
# make figures float.	# make figures float.
# The user has the optional parameter (applicable only to l/r	# The user has the optional parameter (applicable only to l/r
# alignment to use the picins/parpic directive to get wrapped text	# alignment to use the picins/parpic directive to get wrapped text
# this is also imperfect.. that's why we give them a choice...	# this is also imperfect.. that's why we give them a choice...
Line 2794 sub start_img {	Line 2841 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 $file");
Line 2808 sub start_img {	Line 2855 sub start_img {
if ($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).	# Default size if not able to extract that (e.g. eps image).

# &Apache::lonnet::logthis("Size = $size");	# &Apache::lonnet::logthis("Size = $size");

$size='['.$size;	$size='['.$size;
$size=~s/,$/]/;	$size=~s/,$/]/;
$currentstring .= '\graphicspath{{'.$path.'}}'	$currentstring .= '\graphicspath{{'.$path.'}}'
.'\includegraphics'.$size.'{'.$file.'} ';	.'\includegraphics'.$size.'{'.$file.'} ';
my $closure;	my $closure;
($currentstring, $closure) = &align_latex_image($align,	($currentstring, $closure) = &align_latex_image($align,
$latex_rendering,	$latex_rendering,
$currentstring,	$currentstring,
$width_param,	$width_param,
$height_param);	$height_param);
$currentstring .= $closure;	$currentstring .= $closure;

} 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
my $alt =	my $alt =
&Apache::lonxml::get_param('alt',$parstack,$safeeval,undef,1);	&Apache::lonxml::get_param('alt',$parstack,$safeeval,undef,1);
unless ($alt) {	unless ($alt) {
$alt=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],$src);	$alt=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],$src);
Line 2841 sub start_img {	Line 2888 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 2854 sub start_img {	Line 2901 sub start_img {
['', 'none','parbox', 'parpic', 'wrapfigure'], $token, 2);	['', 'none','parbox', 'parpic', 'wrapfigure'], $token, 2);
my $alt= &Apache::lonxml::get_param('alt',$parstack,$safeeval);	my $alt= &Apache::lonxml::get_param('alt',$parstack,$safeeval);
my $enc= &Apache::lonxml::get_param('encrypturl',$parstack,$safeeval);	my $enc= &Apache::lonxml::get_param('encrypturl',$parstack,$safeeval);

$currentstring .=&Apache::edit::select_arg('Encrypt URL:','encrypturl',	$currentstring .=&Apache::edit::select_arg('Encrypt URL:','encrypturl',
['no','yes'], $token, 2);	['no','yes'], $token, 2);
if (($alt=~/\S/) && (lc($enc) eq 'yes')) {	if (($alt=~/\S/) && (lc($enc) eq 'yes')) {
Line 2864 sub start_img {	Line 2911 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'},$token->[2]{'height'});
Line 2895 sub start_img {	Line 2944 sub start_img {
}	}
if ($osrc ne $nsrc \|\| (!$nwidth && !$nheight)) {	if ($osrc ne $nsrc \|\| (!$nwidth && !$nheight)) {
# changed image or no size specified,	# changed image or no size specified,
# if they didn't explicitly change the	# if they didn't explicitly change the
# width or height use the ones from the image	# width or height use the ones from the image
if ($iwidth && $iheight) {	if ($iwidth && $iheight) {
if ($owidth == $nwidth \|\| (!$nwidth && !$nheight)) {	if ($owidth == $nwidth \|\| (!$nwidth && !$nheight)) {
Line 2934 sub end_img {	Line 2983 sub end_img {
#-- <applet> tag (end tag required)	#-- <applet> tag (end tag required)
sub start_applet {	sub start_applet {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;	my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;

my $code=&Apache::lonxml::get_param('code',$parstack,$safeeval,undef,1);	my $code=&Apache::lonxml::get_param('code',$parstack,$safeeval,undef,1);
&Apache::lonxml::extlink($code);	&Apache::lonxml::extlink($code);
my $archive=&Apache::lonxml::get_param('archive',$parstack,$safeeval,	my $archive=&Apache::lonxml::get_param('archive',$parstack,$safeeval,
Line 2955 sub start_applet {	Line 3004 sub start_applet {

if (&is_inside_of($tagstack, "sub")) {	if (&is_inside_of($tagstack, "sub")) {
$restart_sub = 1;	$restart_sub = 1;
$currentstring .= &end_sub($target, $token, $tagstack,	$currentstring .= &end_sub($target, $token, $tagstack,
$parstack, $parser, $safeeval);	$parstack, $parser, $safeeval);
}	}
if (&is_inside_of($tagstack, "sup")) {	if (&is_inside_of($tagstack, "sup")) {
Line 2987 sub start_applet {	Line 3036 sub start_applet {
$currentstring .= &start_sup($target, $token, $tagstack,	$currentstring .= &start_sup($target, $token, $tagstack,
$parstack, $parser, $safeeval);	$parstack, $parser, $safeeval);
}	}
}	}
return $currentstring;	return $currentstring;
}	}

Line 2997 sub end_applet {	Line 3046 sub end_applet {
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') {
}	}
return $currentstring;	return $currentstring;
}	}

#-- <embed> tag (end tag optional/required)	#-- <embed> tag (end tag optional/required)
sub start_embed {	sub start_embed {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;	my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
my $src=&Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);	my $src=&Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
&Apache::lonxml::extlink($src);	&Apache::lonxml::extlink($src);
my $currentstring = '';	my $currentstring = '';
if ($target eq 'web' \|\| $target eq 'webgrade') {	if ($target eq 'web' \|\| $target eq 'webgrade') {
$currentstring=&Apache::lonenc::encrypt_ref($token,{'src'=>$src});	$currentstring=&Apache::lonenc::encrypt_ref($token,{'src'=>$src});
} elsif ($target eq 'tex') {	} elsif ($target eq 'tex') {
}	}
return $currentstring;	return $currentstring;
}	}

Line 3075 sub start_param {	Line 3124 sub start_param {
}	}
$currentstring = &Apache::lonenc::encrypt_ref($token,\%toconvert);	$currentstring = &Apache::lonenc::encrypt_ref($token,\%toconvert);
} elsif ($target eq 'tex') {	} elsif ($target eq 'tex') {
}	}
return $currentstring;	return $currentstring;
}	}

Line 3083 sub end_param {	Line 3132 sub end_param {
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 = $token->[2];
} elsif ($target eq 'tex') {	} elsif ($target eq 'tex') {
}	}
return $currentstring;	return $currentstring;
}	}

Line 3120 sub end_allow {	Line 3169 sub end_allow {
sub start_frameset {	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') {
$currentstring =	$currentstring =
&Apache::loncommon::start_page($Apache::londefdef::title,	&Apache::loncommon::start_page($Apache::londefdef::title,
$Apache::londefdef::head,	$Apache::londefdef::head,
{'add_entries' => $token->[2],	{'add_entries' => $token->[2],
Line 3150 sub start_xmp {	Line 3199 sub start_xmp {
$currentstring .= $token->[4];	$currentstring .= $token->[4];
} elsif ($target eq 'tex') {	} elsif ($target eq 'tex') {
$currentstring .= '\begin{verbatim}';	$currentstring .= '\begin{verbatim}';
}	}
return $currentstring;	return $currentstring;
}	}

Line 3174 sub start_pre {	Line 3223 sub start_pre {
} elsif ($target eq 'tex') {	} elsif ($target eq 'tex') {
$currentstring .= '\begin{verbatim}';	$currentstring .= '\begin{verbatim}';
&Apache::lonxml::disable_LaTeX_substitutions();	&Apache::lonxml::disable_LaTeX_substitutions();
}	}
return $currentstring;	return $currentstring;
}	}

Line 3230 sub end_externallink {	Line 3279 sub end_externallink {
return $currentstring;	return $currentstring;
}	}

#-- <blankspace heigth="">	#-- <blankspace height="">
sub start_blankspace {	sub start_blankspace {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;	my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
my $currentstring = &end_p(); # closes off any unclosed <p>	my $currentstring = &end_p(); # closes off any unclosed <p>
if ($target eq 'tex') {	if ($target eq 'tex') {
my $howmuch = &Apache::lonxml::get_param('heigth',$parstack,$safeeval,undef,1);	my $howmuch = &Apache::lonxml::get_param('height',$parstack,$safeeval,undef,1);
$currentstring .= '\vskip '.$howmuch.' ';	$currentstring .= '\vskip '.$howmuch.' ';
}	}
return $currentstring;	return $currentstring;
Line 3255 sub start_abbr {	Line 3304 sub start_abbr {
my ($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->[4];	$currentstring = $token->[4];
}	}
return $currentstring;	return $currentstring;
}	}

Line 3264 sub end_abbr {	Line 3313 sub end_abbr {
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 3274 sub start_acronym {	Line 3323 sub start_acronym {
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->[4];	$currentstring = $token->[4];
}	}
return $currentstring;	return $currentstring;
}	}

Line 3283 sub end_acronym {	Line 3332 sub end_acronym {
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 3293 sub start_area {	Line 3342 sub start_area {
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->[4];	$currentstring = $token->[4];
}	}
return $currentstring;	return $currentstring;
}	}

Line 3302 sub end_area {	Line 3351 sub end_area {
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 3312 sub start_base {	Line 3361 sub start_base {
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->[4];	$currentstring = $token->[4];
}	}
return $currentstring;	return $currentstring;
}	}
Line 3321 sub end_base {	Line 3370 sub end_base {
my ($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 3331 sub start_bdo {	Line 3380 sub start_bdo {
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->[4];	$currentstring = $token->[4];
}	}
return $currentstring;	return $currentstring;
}	}

Line 3340 sub end_bdo {	Line 3389 sub end_bdo {
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 3350 sub start_bgsound {	Line 3399 sub start_bgsound {
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->[4];	$currentstring = $token->[4];
}	}
return $currentstring;	return $currentstring;
}	}

Line 3359 sub end_bgsound {	Line 3408 sub end_bgsound {
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 3369 sub start_blink {	Line 3418 sub start_blink {
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->[4];	$currentstring = $token->[4];
}	}
return $currentstring;	return $currentstring;
}	}

Line 3378 sub end_blink {	Line 3427 sub end_blink {
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 3388 sub start_blockquote {	Line 3437 sub start_blockquote {
my ($target,$token) = @_;	my ($target,$token) = @_;
my $currentstring = &end_p(); # Close any unclosed <p>	my $currentstring = &end_p(); # Close any unclosed <p>
if ($target eq 'web' \|\| $target eq 'webgrade') {	if ($target eq 'web' \|\| $target eq 'webgrade') {
$currentstring .= $token->[4];	$currentstring .= $token->[4];
}	}
if ($target eq 'tex') {	if ($target eq 'tex') {
$currentstring .= '\begin{quote}';	$currentstring .= '\begin{quote}';
}	}
Line 3400 sub end_blockquote {	Line 3449 sub end_blockquote {
my ($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 = $token->[2];
}	}
if ($target eq 'tex') {	if ($target eq 'tex') {
$currentstring = '\end{quote}';	$currentstring = '\end{quote}';
}	}
Line 3413 sub start_button {	Line 3462 sub start_button {
my ($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->[4];	$currentstring = $token->[4];
}	}
return $currentstring;	return $currentstring;
}	}

Line 3422 sub end_button {	Line 3471 sub end_button {
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 3432 sub start_caption {	Line 3481 sub start_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->[4];	$currentstring = $token->[4];
}	}
return $currentstring;	return $currentstring;
}	}

Line 3441 sub end_caption {	Line 3490 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 3451 sub start_col {	Line 3500 sub start_col {
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->[4];	$currentstring = $token->[4];
}	}
return $currentstring;	return $currentstring;
}	}

Line 3460 sub end_col {	Line 3509 sub end_col {
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 3470 sub start_colgroup {	Line 3519 sub start_colgroup {
my ($target,$token,$tagstack, $parstack, $parser, $safeeval, $style) = @_;	my ($target,$token,$tagstack, $parstack, $parser, $safeeval, $style) = @_;
my $currentstring = '';	my $currentstring = '';
if ($target eq 'web' \|\| $target eq 'webgrade') {	if ($target eq 'web' \|\| $target eq 'webgrade') {
$currentstring = $token->[4];	$currentstring = $token->[4];
}	}
if ($target eq 'tex') {	if ($target eq 'tex') {
# TODO: Ensure this tag is in a table:	# TODO: Ensure this tag is in a table:

Line 3500 sub end_colgroup {	Line 3549 sub end_colgroup {
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 3511 sub start_del {	Line 3560 sub start_del {
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->[4];	$currentstring = $token->[4];
} elsif ($target eq 'tex') {	} elsif ($target eq 'tex') {
&disable_para();	&disable_para();
$currentstring .= '\st{';	$currentstring .= '\st{';
}	}
return $currentstring;	return $currentstring;
}	}

Line 3523 sub end_del {	Line 3572 sub end_del {
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 = $token->[2];
} elsif ($target eq 'tex') {	} elsif ($target eq 'tex') {
&enable_para();	&enable_para();
$currentstring = '}';	$currentstring = '}';
}	}
return $currentstring;	return $currentstring;
}	}

Line 3536 sub start_fieldset {	Line 3585 sub start_fieldset {
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->[4];	$currentstring = $token->[4];
}	}
return $currentstring;	return $currentstring;
}	}

Line 3545 sub end_fieldset {	Line 3594 sub end_fieldset {
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 3555 sub start_frame {	Line 3604 sub start_frame {
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->[4];	$currentstring = $token->[4];
}	}
return $currentstring;	return $currentstring;
}	}

Line 3564 sub end_frame {	Line 3613 sub end_frame {
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 3599 sub start_iframe {	Line 3648 sub start_iframe {
$query.='&inhibitmenu=yes';	$query.='&inhibitmenu=yes';
} else {	} else {
$query = 'inhibitmenu=yes';	$query = 'inhibitmenu=yes';
}	}
$currentstring .= 'src="'.$url.'?'.$query.'" ';	$currentstring .= 'src="'.$url.'?'.$query.'" ';
} else {	} else {
$currentstring .= lc($attrib).'="'.$token->[2]->{$attrib}.'" ';	$currentstring .= lc($attrib).'="'.$token->[2]->{$attrib}.'" ';
}	}
}	}
$currentstring =~ s/\s+$//;	$currentstring =~ s/\s+$//;
$currentstring .= '>';	if ($token->[4] =~ m{/>$}) {
	$currentstring .= ' />';
	} else {
	$currentstring .= '>';
	}
} else {	} else {
$currentstring = $token->[4];	$currentstring = $token->[4];
}	}
}	}
	if (($url !~ m{^https?://}) && ($env{'request.course.id'})) {
	my $docuri = &Apache::lonnet::hreflocation('',$env{'request.filename'});
	my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
	my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
	if ($url =~ m{^([^/]\|/uploaded/)}) {
	my $cleanhref = &clean_docs_httpref($url,$docuri,$cdom,$cnum);
	if ($cleanhref) {
	&Apache::lonxml::extlink($cleanhref);
	}
	} elsif (($url =~ m{/res/$LONCAPA::domain_re/}) && ($docuri =~ m{^\Q/uploaded/$cdom/$cnum/docs/\E})) {
	if (!&Apache::lonnet::allowed('bre',$url)) {
	if (&Apache::lonnet::is_on_map($url)) {
	&Apache::lonxml::extlink($url);
	}
	}
	}
	}
} else {	} else {
$currentstring = $token->[4];	$currentstring = $token->[4];
}	}
Line 3622 sub end_iframe {	Line 3692 sub end_iframe {
my ($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 3632 sub start_ins {	Line 3702 sub start_ins {
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->[4];	$currentstring = $token->[4];
}	}
return $currentstring;	return $currentstring;
}	}

Line 3641 sub end_ins {	Line 3711 sub end_ins {
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 3651 sub start_isindex {	Line 3721 sub start_isindex {
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->[4];	$currentstring = $token->[4];
}	}
return $currentstring;	return $currentstring;
}	}

Line 3660 sub end_isindex {	Line 3730 sub end_isindex {
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 3670 sub start_keygen {	Line 3740 sub start_keygen {
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->[4];	$currentstring = $token->[4];
}	}
return $currentstring;	return $currentstring;
}	}

Line 3679 sub end_keygen {	Line 3749 sub end_keygen {
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 3689 sub start_label {	Line 3759 sub start_label {
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->[4];	$currentstring = $token->[4];
}	}
return $currentstring;	return $currentstring;
}	}

Line 3698 sub end_label {	Line 3768 sub end_label {
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 3708 sub start_layer {	Line 3778 sub start_layer {
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->[4];	$currentstring = $token->[4];
}	}
return $currentstring;	return $currentstring;
}	}

Line 3717 sub end_layer {	Line 3787 sub end_layer {
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 3727 sub start_legend {	Line 3797 sub start_legend {
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->[4];	$currentstring = $token->[4];
}	}
return $currentstring;	return $currentstring;
}	}

Line 3736 sub end_legend {	Line 3806 sub end_legend {
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 3749 sub start_link {	Line 3819 sub start_link {
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);
$currentstring = $token->[4];	$currentstring = $token->[4];
}	}
return $currentstring;	return $currentstring;
}	}

Line 3758 sub end_link {	Line 3828 sub end_link {
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 3768 sub start_marquee {	Line 3838 sub start_marquee {
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->[4];	$currentstring = $token->[4];
}	}
return $currentstring;	return $currentstring;
}	}

Line 3777 sub end_marquee {	Line 3847 sub end_marquee {
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 3787 sub start_multicol {	Line 3857 sub start_multicol {
my ($target,$token) = @_;	my ($target,$token) = @_;
my $currentstring = &end_p(); # Close any pending <p>	my $currentstring = &end_p(); # Close any pending <p>
if ($target eq 'web' \|\| $target eq 'webgrade') {	if ($target eq 'web' \|\| $target eq 'webgrade') {
$currentstring .= $token->[4];	$currentstring .= $token->[4];
}	}
return $currentstring;	return $currentstring;
}	}

Line 3796 sub end_multicol {	Line 3866 sub end_multicol {
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 3806 sub start_nobr {	Line 3876 sub start_nobr {
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->[4];	$currentstring = $token->[4];
} elsif ($target eq 'tex') {	} elsif ($target eq 'tex') {
$currentstring='\mbox{';	$currentstring='\mbox{';
}	}
Line 3817 sub end_nobr {	Line 3887 sub end_nobr {
my ($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 = $token->[2];
} elsif ($target eq 'tex') {	} elsif ($target eq 'tex') {
$currentstring='}';	$currentstring='}';
}	}
Line 3829 sub start_noembed {	Line 3899 sub start_noembed {
my ($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->[4];	$currentstring = $token->[4];
}	}
return $currentstring;	return $currentstring;
}	}

Line 3838 sub end_noembed {	Line 3908 sub end_noembed {
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 3848 sub start_noframes {	Line 3918 sub start_noframes {
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->[4];	$currentstring = $token->[4];
}	}
return $currentstring;	return $currentstring;
}	}

Line 3857 sub end_noframes {	Line 3927 sub end_noframes {
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 3867 sub start_nolayer {	Line 3937 sub start_nolayer {
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->[4];	$currentstring = $token->[4];
}	}
return $currentstring;	return $currentstring;
}	}

Line 3876 sub end_nolayer {	Line 3946 sub end_nolayer {
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 3886 sub start_noscript {	Line 3956 sub start_noscript {
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->[4];	$currentstring = $token->[4];
}	}
return $currentstring;	return $currentstring;
}	}

Line 3895 sub end_noscript {	Line 3965 sub end_noscript {
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 3905 sub start_object {	Line 3975 sub start_object {
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->[4];	$currentstring = $token->[4];
}	}
return $currentstring;	return $currentstring;
}	}

Line 3914 sub end_object {	Line 3984 sub end_object {
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 3924 sub start_optgroup {	Line 3994 sub start_optgroup {
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->[4];	$currentstring = $token->[4];
}	}
return $currentstring;	return $currentstring;
}	}

Line 3933 sub end_optgroup {	Line 4003 sub end_optgroup {
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 3943 sub start_samp {	Line 4013 sub start_samp {
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->[4];	$currentstring = $token->[4];
} elsif ($target eq 'tex') {	} elsif ($target eq 'tex') {
$currentstring='\texttt{';	$currentstring='\texttt{';
}	}
Line 3954 sub end_samp {	Line 4024 sub end_samp {
my ($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 = $token->[2];
} elsif ($target eq 'tex') {	} elsif ($target eq 'tex') {
$currentstring='}';	$currentstring='}';
}	}
Line 3966 sub start_server {	Line 4036 sub start_server {
my ($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->[4];	$currentstring = $token->[4];
}	}
return $currentstring;	return $currentstring;
}	}

Line 3975 sub end_server {	Line 4045 sub end_server {
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 3985 sub start_spacer {	Line 4055 sub start_spacer {
my ($target,$token) = @_;	my ($target,$token) = @_;
my $currentstring = &end_p(); # Close off any open <p> tag.	my $currentstring = &end_p(); # Close off any open <p> tag.
if ($target eq 'web' \|\| $target eq 'webgrade') {	if ($target eq 'web' \|\| $target eq 'webgrade') {
$currentstring .= $token->[4];	$currentstring .= $token->[4];
}	}
return $currentstring;	return $currentstring;
}	}

Line 3994 sub end_spacer {	Line 4064 sub end_spacer {
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;
}	}

	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 4013 sub end_span {	Line 4103 sub end_span {
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 = $token->[2];
}	} elsif ($target eq 'tex') {
	my $endstring = pop @span_end_stack;
	$currentstring .= $endstring;
	}
return $currentstring;	return $currentstring;
}	}

Line 4023 sub start_tbody {	Line 4116 sub start_tbody {
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->[4];	$currentstring = $token->[4];
}	}
if ($target eq 'tex') {	if ($target eq 'tex') {
# TODO: Ensure this tag is within a table:	# TODO: Ensure this tag is within a table:

Line 4038 sub end_tbody {	Line 4131 sub end_tbody {
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 = $token->[2];
}	}
if($target eq 'tex') {	if($target eq 'tex') {
# TODO: Ensure this tag is within a table:	# TODO: Ensure this tag is within a table:

Line 4054 sub start_tfoot {	Line 4147 sub start_tfoot {
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->[4];	$currentstring = $token->[4];
}	}
if ($target eq 'tex') {	if ($target eq 'tex') {
# TODO: ensure this is within a table tag.	# TODO: ensure this is within a table tag.
my $table = $Apache::londefdef::table[-1];	my $table = $Apache::londefdef::table[-1];
Line 4068 sub end_tfoot {	Line 4161 sub end_tfoot {
my ($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 = $token->[2];
}	}
if ($target eq 'tex') {	if ($target eq 'tex') {
# TODO: Ensure this is in side a table	# TODO: Ensure this is in side a table
my $table = $Apache::londefdef::table[-1];	my $table = $Apache::londefdef::table[-1];
$table->end_foot();	$table->end_foot();
}	}
Line 4083 sub start_thead {	Line 4176 sub start_thead {
my ($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->[4];	$currentstring = $token->[4];
}	}
if ($target eq 'tex') {	if ($target eq 'tex') {
# Assume we're in a table... TODO: Verify that and ignore tag if not.	# Assume we're in a table... TODO: Verify that and ignore tag if not.
my $table = $Apache::londefdef::table[-1];	my $table = $Apache::londefdef::table[-1];
Line 4097 sub end_thead {	Line 4190 sub end_thead {
my ($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 = $token->[2];
}	}
if ($target eq 'tex') {	if ($target eq 'tex') {
# TODO: Verify we are in a table and ignore tag if not.	# TODO: Verify we are in a table and ignore tag if not.

Line 4113 sub start_var {	Line 4206 sub start_var {
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->[4];	$currentstring = $token->[4];
} elsif ($target eq 'tex') {	} elsif ($target eq 'tex') {
$currentstring = '\textit{';	$currentstring = '\textit{';
}	}
return $currentstring;	return $currentstring;
}	}
Line 4126 sub end_var {	Line 4219 sub end_var {
if ($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') {
$currentstring = '}';	$currentstring = '}';
}	}
return $currentstring;	return $currentstring;
}	}

Line 4136 sub start_wbr {	Line 4229 sub start_wbr {
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->[4];	$currentstring = $token->[4];
}	}
return $currentstring;	return $currentstring;
}	}

Line 4145 sub end_wbr {	Line 4238 sub end_wbr {
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 4154 sub end_wbr {	Line 4247 sub end_wbr {
sub start_hideweboutput {	sub start_hideweboutput {
my ($target,$token) = @_;	my ($target,$token) = @_;
if ($target eq 'web' \|\| $target eq 'webgrade') {	if ($target eq 'web' \|\| $target eq 'webgrade') {
&Apache::lonxml::startredirection();	&Apache::lonxml::startredirection();
}	}
return '';	return '';
}	}

Line 4163 sub end_hideweboutput {	Line 4256 sub end_hideweboutput {
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 = &Apache::lonxml::endredirection();	$currentstring = &Apache::lonxml::endredirection();
}	}
return '';	return '';
}	}

Line 4172 sub end_hideweboutput {	Line 4265 sub end_hideweboutput {
sub image_replication {	sub image_replication {
my $src = shift;	my $src = shift;
if (not -e $src) { &Apache::lonnet::repcopy($src); }	if (not -e $src) { &Apache::lonnet::repcopy($src); }
#replicates eps or ps	#replicates eps or ps
my $epssrc = my $pssrc = $src;	my $epssrc = my $pssrc = $src;
$epssrc =~ s/\.(gif\|jpg\|jpeg\|png)$/.eps/i;	$epssrc =~ s/\.(gif\|jpg\|jpeg\|png)$/.eps/i;
$pssrc =~ s/\.(gif\|jpg\|jpeg\|png)$/.ps/i;	$pssrc =~ s/\.(gif\|jpg\|jpeg\|png)$/.ps/i;
Line 4195 sub resize_image {	Line 4288 sub resize_image {
$width_param = $width_param * $scaling;	$width_param = $width_param * $scaling;

#do we have any specified LaTeX size of the picture?	#do we have any specified LaTeX size of the picture?
my $toget='TeXwidth';	my $toget='TeXwidth';
if ($cis) {	if ($cis) {
$toget=lc($toget);	$toget=lc($toget);
}	}
my $TeXwidth = &Apache::lonxml::get_param($toget,$parstack,	my $TeXwidth = &Apache::lonxml::get_param($toget,$parstack,
$safeeval,$depth,$cis);	$safeeval,$depth,$cis);
Line 4207 sub resize_image {	Line 4300 sub resize_image {
#do we have any specified web size of the picture?	#do we have any specified web size of the picture?
my $width = &Apache::lonxml::get_param('width',$parstack,$safeeval,	my $width = &Apache::lonxml::get_param('width',$parstack,$safeeval,
$depth,1);	$depth,1);
if ($TeXwidth) {	if ($TeXwidth) {
my $old_width_param=$width_param;	my $old_width_param=$width_param;
if ($TeXwidth=~/(\d+)\s*\%/) {	if ($TeXwidth=~/(\d+)\s*\%/) {
$width_param = $1*$env{'form.textwidth'}/100;	$width_param = $1*$env{'form.textwidth'}/100;
} else {	} else {
$width_param = $TeXwidth;	$width_param = $TeXwidth;
}	}
if ($TeXheight) {	if ($TeXheight) {
Line 4245 sub resize_image {	Line 4338 sub resize_image {
sub image_size {	sub image_size {
my ($src,$scaling,$parstack,$safeeval,$depth,$cis)=@_;	my ($src,$scaling,$parstack,$safeeval,$depth,$cis)=@_;

#size of image from gif/jpg/jpeg/png	#size of image from gif/jpg/jpeg/png
my $ressrc=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src);	my $ressrc=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src);
if (-e $ressrc) {	if (-e $ressrc) {
$src = $ressrc;	$src = $ressrc;
Line 4258 sub image_size {	Line 4351 sub image_size {
undef($image);	undef($image);

($height_param, $width_param) = &resize_image($height_param, $width_param,	($height_param, $width_param) = &resize_image($height_param, $width_param,
$scaling, $parstack, $safeeval,	$scaling, $parstack, $safeeval,
$depth, $cis);	$depth, $cis);

return ($height_param, $width_param);	return ($height_param, $width_param);
Line 4287 sub get_eps_image {	Line 4380 sub get_eps_image {
&Apache::lonnet::repcopy($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 4344 sub get_eps_image {	Line 4437 sub get_eps_image {
}	}

sub eps_generation {	sub eps_generation {
my ($src,$file,$width_param) = @_;	my ($src,$file,$width_param) = @_;
my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.dat";	my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.dat";
if (open(my $tmpfile,">>$filename")) {	if (open(my $tmpfile,">>$filename")) {
print $tmpfile "$src\n";	print $tmpfile "$src\n";
close($tmpfile);	close($tmpfile);
}	}
Line 4367 sub eps_generation {	Line 4460 sub eps_generation {
}	}
}	}

sub file_path {	sub file_path {
my $src=shift;	my $src=shift;
my ($file,$path);	my ($file,$path);
if ($src =~ m!(.)/([^/])$!) {	if ($src =~ m!(.)/([^/])$!) {
$file = $2;	$file = $2;
$path = $1.'/';	$path = $1.'/';
}	}
return $file,$path;	return $file,$path;
}	}

Line 4399 sub recalc {	Line 4492 sub recalc {
sub LATEX_length {	sub LATEX_length {
my $garbage=shift;	my $garbage=shift;
$garbage=~s/^\s+$//;	$garbage=~s/^\s+$//;
$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;
$garbage=~s\|\+\|11\|g;	$garbage=~s\|\+\|11\|g;
my $value=length($garbage);	my $value=length($garbage);
return $value;	return $value;
Line 4435 sub align_latex_image {	Line 4528 sub align_latex_image {
# If there's an alignment specification we need to honor it here.	# If there's an alignment specification we need to honor it here.
# For the horizontal alignments, we will also honor the	# For the horizontal alignments, we will also honor the
# value of the latex specfication. The default is parbox,	# value of the latex specfication. The default is parbox,
# and that's used for illegal values too.	# and that's used for illegal values too.
#	#
# Even though we set a default alignment value, the user	# Even though we set a default alignment value, the user
# could have given us an illegal value. In that case we	# could have given us an illegal value. In that case we
# just use the default alignment of bottom..	# just use the default alignment of bottom..
Line 4448 sub align_latex_image {	Line 4541 sub align_latex_image {
my $offset = $height/2;	my $offset = $height/2;
$currentstring .= '\raisebox{-'.$offset.'mm}{'.$image;	$currentstring .= '\raisebox{-'.$offset.'mm}{'.$image;
$closure = '}';	$closure = '}';
} elsif ($align eq "left") {	} elsif ($align eq "left") {
if ($latex_rendering eq "parpic") {	if ($latex_rendering eq "parpic") {
$currentstring .= '\parpic[l]{'.$image;	$currentstring .= '\parpic[l]{'.$image;
$closure = '}';	$closure = '}';
} elsif ($latex_rendering eq "parbox") {	} elsif ($latex_rendering eq "parbox") {
Line 4458 sub align_latex_image {	Line 4551 sub align_latex_image {
$closure = '\end{minipage}';	$closure = '\end{minipage}';
} elsif ($latex_rendering eq "wrapfigure"	} elsif ($latex_rendering eq "wrapfigure"
\|\| $latex_rendering ne 'none') { # wrapfig render	\|\| $latex_rendering ne 'none') { # wrapfig render
$currentstring .=	$currentstring .=
'\begin{wrapfigure}{l}{'.$width.'mm}'	'\begin{wrapfigure}{l}{'.$width.'mm}'
.'\scalebox{1.0}{'.$image;	.'\scalebox{1.0}{'.$image;
$closure = '}\end{wrapfigure}';	$closure = '}\end{wrapfigure}';
}	}
} elsif ($align eq "right") {	} elsif ($align eq "right") {
if ($latex_rendering eq "parpic") {	if ($latex_rendering eq "parpic") {
$currentstring .= '\parpic[r]{'.$image;	$currentstring .= '\parpic[r]{'.$image;
$closure = '}';	$closure = '}';
Line 4473 sub align_latex_image {	Line 4566 sub align_latex_image {
$closure = '\end{minipage}';	$closure = '\end{minipage}';
} elsif ($latex_rendering eq "wrapfigure"	} elsif ($latex_rendering eq "wrapfigure"
\|\| $latex_rendering ne 'none') { # wrapfig render	\|\| $latex_rendering ne 'none') { # wrapfig render
$currentstring .=	$currentstring .=
'\begin{wrapfigure}{r}{'.$width.'mm}'	'\begin{wrapfigure}{r}{'.$width.'mm}'
.'\scalebox{1.0}{'.$image;	.'\scalebox{1.0}{'.$image;
$closure = '}\end{wrapfigure}';	$closure = '}\end{wrapfigure}';
Line 4506 sub latex_header {	Line 4599 sub latex_header {
my ($mode) = @_;	my ($mode) = @_;
my $currentstring = '';	my $currentstring = '';

$currentstring .=	$currentstring .=
"\n% &Apache::lonxml::londefdef \n" .	"\n% &Apache::lonxml::londefdef \n" .
'\documentclass[letterpaper,twoside]{article}\raggedbottom';	'\documentclass[letterpaper,twoside]{article}\raggedbottom';
if (($env{'form.latex_type'}=~'batchmode') \|\|	if (($env{'form.latex_type'}=~'batchmode') \|\|
(!$env{'request.role.adv'}) \|\|	(!$env{'request.role.adv'}) \|\|
($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}'.
'\usepackage{tabularx}';	'\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}}'.	$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}}';
$currentstring .= '\begin{document}';	$currentstring .= '\begin{document}';

return $currentstring;	return $currentstring;

}	}

	sub clean_docs_httpref {
	my ($href,$docuri,$cdom,$cnum) = @_;
	if ($docuri eq '') {
	$docuri = &Apache::lonnet::hreflocation('',$env{'request.filename'});
	}
	if ($cdom eq '') {
	$cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
	}
	if ($cnum eq '') {
	$cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
	}
	my $cleanhref;
	if ($docuri =~ m{^(\Q/uploaded/$cdom/$cnum/\E(?:docs\|supplemental)/)(.+/)[^/]+$}) {
	my $prefix = $1;
	my $relpath = $2;
	my ($hrefpath,$fname);
	if ($href =~ m{^/}) {
	if ($href =~ m{^\Q$prefix\E(.+/)([^/]+)$}) {
	$hrefpath = $1;
	$fname = $2;
	} else {
	return $cleanhref;
	}
	} else {
	if ($href =~ m{/}) {
	(my $path,$fname) = ($href =~ m{^(.)/([^/])$});
	$hrefpath = $relpath.$path;
	if ($path eq '') {
	$hrefpath =~ s{/$}{};
	}
	} else {
	$fname = $href;
	$hrefpath = $relpath;
	$hrefpath =~ s{/$}{};
	}
	}
	if ($fname ne '') {
	my $cleanrelpath;
	foreach my $dir (split(/\//,$hrefpath)) {
	next if ($dir eq '.');
	if ($dir eq '..') {
	$cleanrelpath =~ s{([^/]+/)$}{};
	} else {
	$cleanrelpath .= $dir.'/';
	}
	}
	if ($cleanrelpath ne '') {
	$cleanhref = $prefix.$cleanrelpath.$fname;
	} else {
	$cleanhref = $prefix.$fname;
	}
	}
	}
	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 4592 described at http://www.lon-capa.org.	Line 4752 described at http://www.lon-capa.org.
it's initial ht. and wid. This allows sizing of	it's initial ht. and wid. This allows sizing of
images that are generated on-the-fly (e.g. gnuplot)	images that are generated on-the-fly (e.g. gnuplot)
as well as serving as a utility for image_size.	as well as serving as a utility for image_size.

Parameter:	Parameter:
height_param	height_param
width_param - Initial picture dimensions.	width_param - Initial picture dimensions.
scaling - A scale factor.	scaling - A scale factor.
parstack, - the current stack of tag attributes	parstack, - the current stack of tag attributes
from the xml parser	from the xml parser
safeeval, - pointer to the safespace	safeeval, - pointer to the safespace
depth, - from what level in the stack to look for attributes	depth, - from what level in the stack to look for attributes
Line 4622 described at http://www.lon-capa.org.	Line 4782 described at http://www.lon-capa.org.

=item recalc()	=item recalc()

Converts a measurement in to mm from any of	Converts a measurement in to mm from any of
the other valid LaTeX units of measure.	the other valid LaTeX units of measure.
If the units of measure are missing from the	If the units of measure are missing from the
parameter, it is assumed to be in and returned	parameter, it is assumed to be in and returned
with mm units of measure	with mm units of measure

Line 4632 described at http://www.lon-capa.org.	Line 4792 described at http://www.lon-capa.org.

=item align_latex_image()	=item align_latex_image()

Wrap image 'stuff' inside of the LaTeX required to implement	Wrap image 'stuff' inside of the LaTeX required to implement
alignment:	alignment:
align_tex_image(align, latex_rendering, image)	align_tex_image(align, latex_rendering, image)
Where:	Where:
Line 4647 described at http://www.lon-capa.org.	Line 4807 described at http://www.lon-capa.org.


=item is_inside_of($tagstack, $tag)	=item is_inside_of($tagstack, $tag)
This sub returns true if the current state of Xml processing is inside of the tag.	This sub returns true if the current state of Xml processing is inside of the tag.
Parameters:	Parameters:
tagstack - The tagstack from the parser.	tagstack - The tagstack from the parser.
tag - The tag (without the <>'s.).	tag - The tag (without the <>'s.).
Line 4656 described at http://www.lon-capa.org.	Line 4816 described at http://www.lon-capa.org.
I'm in a table....	I'm in a table....
}	}

	=item clean_docs_httpref($href,$docuri,$cdom,$cnum)
	HTML pages uploaded to a course which contain dependencies either from iframes,
	javascript files or objects (FlashPlayerSwf, MediaSrc, XMPSrc, ConfigurationSrc,
	and PosterImageSrc) for which dependency is another file uploaded to the same
	course.

	Required input:
	href - dependency (either a relative URL, or an absolute URL)
	Optional inputs:
	docuri - URL of HTML page containing the dependency
	cdom - Course domain
	cnum - CourseID

	Output:
	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/ or
	/uploaded/$cdom/$cnum/supplemental/).

=back	=back

FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>

Removed from v.1.446
changed lines
	Added in v.1.470