# The LearningOnline Network with CAPA
# Tags Default Definition Module
#
# $Id: londefdef.pm,v 1.194 2004/01/28 17:16:27 albertel Exp $
#
#
# Copyright Michigan State University Board of Trustees
#
# This file is part of the LearningOnline Network with CAPA (LON-CAPA).
#
# LON-CAPA is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# LON-CAPA is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with LON-CAPA; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#
# /home/httpd/html/adm/gpl.txt
#
# http://www.lon-capa.org/
## Copyright for TtHfunc and TtMfunc by Ian Hutchinson.
# TtHfunc and TtMfunc (the "Code") may be compiled and linked into
# binary executable programs or libraries distributed by the
# Michigan State University (the "Licensee"), but any binaries so
# distributed are hereby licensed only for use in the context
# of a program or computational system for which the Licensee is the
# primary author or distributor, and which performs substantial
# additional tasks beyond the translation of (La)TeX into HTML.
# The C source of the Code may not be distributed by the Licensee
# to any other parties under any circumstances.
#
#
# last modified 06/26/00 by Alexander Sakharuk
# 11/6,11/30,02/01/01,5/4 Gerd Kortemeyer
# 01/18 Alex Sakharuk
package Apache::londefdef;
use Apache::lonnet();
use strict;
use Apache::lonxml;
use Apache::File();
use Image::Magick;
use Apache::lonmenu();
use Apache::lonmeta();
use Apache::Constants qw(:common);
BEGIN {
&Apache::lonxml::register('Apache::londefdef',('a','abbr','acronym','accessrule','address','allow','applet','area','b','base','basefont','bgo','bgsound','big','blink','blockquote','blankspace','body','br','button','caption','center','cite','code','col','colgroup','dd','del','dfn','dir','div','dl','dt','em','embed','externallink','fieldset','font','form','frame','frameset','h1','h2','h3','h4','h5','h6','head','hr','html','i','iframe','img','input','ins','insert','isindex','kbd','keygen','label','layer','legend','li','link','m','map','marquee','menu','meta','multicol','nobr','noembed','noframes','nolayer','noscript','object','ol','optgroup','option','output','p','param','pre','q','s','samp','select','server','small','spacer','span','strike','strong','sub','sup','table','tbody','td','textarea','tfoot','th','thead','title','tr','tt','tthoption','u','ul','var','wbr','hideweboutput'));
}
sub initialize_londefdef {
$Apache::londefdef::TD_redirection=0;
@Apache::londefdef::table = ();
$Apache::londefdef::select=0;
@Apache::londefdef::description=();
$Apache::londefdef::DD_redirection=0;
$Apache::londefdef::DT_redirection=0;
}
#======================= TAG SUBROUTINES =====================
#-- <output>
sub start_output {
my ($target) = @_;
if ($target eq 'meta') { $Apache::lonxml::metamode--; }
return '';
}
sub end_output {
my ($target) = @_;
if ($target eq 'meta') { $Apache::lonxml::metamode++; }
return '';
}
#-- <m> tag
sub start_m {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
my $currentstring = '';
my $inside = &Apache::lonxml::get_all_text_unbalanced("/m",$parser);
if ($target eq 'web' || $target eq 'analyze') {
$Apache::lonxml::prevent_entity_encode++;
$inside ='\\documentstyle{article}'.$inside;
&Apache::lonxml::debug("M is starting with:$inside:");
my $eval=&Apache::lonxml::get_param('eval',$parstack,$safeeval);
if ($eval eq 'on') {
$inside=&Apache::run::evaluate($inside,$safeeval,$$parstack[-1]);
#&Apache::lonxml::debug("M is evaulated to:$inside:");
}
$currentstring = &Apache::lontexconvert::converted(\$inside);
if ($Apache::lontexconvert::errorstring) {
&Apache::lonxml::warning("tth error: ".
$Apache::lontexconvert::errorstring);
$Apache::lontexconvert::errorstring='';
}
#&Apache::lonxml::debug("M is ends with:$currentstring:");
$Apache::lonxml::post_evaluate=0;
} elsif ($target eq 'tex') {
$currentstring = $inside;
my $eval=&Apache::lonxml::get_param('eval',$parstack,$safeeval);
if ($eval eq 'on') {
$currentstring=&Apache::run::evaluate($currentstring,$safeeval,$$parstack[-1]);
}
if ($currentstring=~/^(\s*\\\\\s*)*$/) {$currentstring = ' \vskip 0 mm ';}
$Apache::lonxml::post_evaluate=0;
}
return $currentstring;
}
sub end_m {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$Apache::lonxml::prevent_entity_encode--;
} elsif ($target eq 'tex') {
$currentstring = "";
} elsif ($target eq 'meta') {
}
return $currentstring;
}
sub start_tthoption {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
my $result;
if ($target eq 'web') {
my $inside = &Apache::lonxml::get_all_text("/tthoption",$parser);
$inside=~s/^\s*//;
if ($ENV{'browser.mathml'}) {
&tth::ttmoptions($inside);
} else {
&tth::tthoptions($inside);
}
}
return $result;
}
sub end_tthoption {
my ($target,$token) = @_;
my $result;
return $result;
}
#-- <html> tag (end tag optional)
sub start_html {
my ($target,$token) = @_;
my $currentstring = '';
my $options=$ENV{'course.'.$ENV{'request.course.id'}.'.tthoptions'};
&init_tth();
if ($target eq 'web' || $target eq 'edit') {
$currentstring = &Apache::lonxml::xmlbegin().
&Apache::lonxml::fontsettings();
} elsif ($target eq 'tex') {
@Apache::londefdef::table = ();
$currentstring .= '\documentclass[letterpaper]{article}';
if ($ENV{'form.latex_type'}=~'batchmode') {$currentstring .='\batchmode';}
$currentstring .= '\newcommand{\keephidden}[1]{}
\renewcommand{\deg}{$^{\circ}$}
\usepackage{longtable}
\usepackage{textcomp}
\usepackage{makeidx}
\usepackage[dvips]{graphicx}
\usepackage{epsfig}\usepackage{calc}
\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}}';
}
return $currentstring;
}
sub end_html {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = &Apache::lonxml::xmlend();
}
return $currentstring;
}
#-- <head> tag (end tag optional)
sub start_head {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[4];
}
return $currentstring;
}
sub end_head {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web' && $ENV{'request.state'} eq 'published') {
$currentstring = &Apache::lonmenu::registerurl(undef,$target).
$token->[2];
}
return $currentstring;
}
#-- <map> tag (end tag required)
sub start_map {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[4];
}
return $currentstring;
}
sub end_map {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[2];
}
return $currentstring;
}
#-- <select> tag (end tag required)
sub start_select {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[4];
} elsif ($target eq 'tex') {
$Apache::londefdef::select=0;
}
return $currentstring;
}
sub end_select {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[2];
}
return $currentstring;
}
#-- <option> tag (end tag optional)
sub start_option {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[4];
} elsif ($target eq 'tex') {
$Apache::londefdef::select++;
if ($Apache::londefdef::select == 1) {
$currentstring='\noindent\fbox{'.&Apache::lonxml::get_param('value',$parstack,$safeeval).'}\keephidden{';
} else {
$currentstring='\keephidden{';
}
}
return $currentstring;
}
sub end_option {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[2];
} elsif ($target eq 'tex') {
$currentstring='}';
}
return $currentstring;
}
#-- <input> tag (end tag forbidden)
sub start_input {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[4];
}
return $currentstring;
}
sub end_input {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[2];
}
return $currentstring;
}
#-- <textarea> tag (end tag required)
sub start_textarea {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[4];
}
return $currentstring;
}
sub end_textarea {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[2];
}
return $currentstring;
}
#-- <form> tag (end tag required)
sub start_form {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[4];
}
return $currentstring;
}
sub end_form {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[2];
}
return $currentstring;
}
#-- <title> tag (end tag required)
sub start_title {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[4];
} elsif ($target eq 'tex') {
$currentstring .= '\keephidden{Title of the document: '
}
if ($target eq 'meta') {
$currentstring='<title>';
&start_output($target);
}
return $currentstring;
}
sub end_title {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[2];
} elsif ($target eq 'tex') {
$currentstring .= '}';
}
if ($target eq 'meta') {
&end_output($target);
$currentstring='</title>';
}
return $currentstring;
}
#-- <meta> tag (end tag forbidden)
sub start_meta {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
my $currentstring = '';
if ($target eq 'web') {
my $args='';
if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
if ($args eq '') {
&Apache::lonxml::get_all_text("/meta",$parser);
} else {
$currentstring = $token->[4];
}
} elsif ($target eq 'meta') {
unless (&Apache::lonxml::get_param
('http-equiv',$parstack,$safeeval,undef,1)) {
my $name=$token->[2]->{'name'};
$name=~tr/A-Z/a-z/;
$name=~s/\s/\_/gs;
$name=~s/\W//gs;
if ($name) {
$currentstring='<'.$name;
my $display=&Apache::lonxml::get_param
('display',$parstack,$safeeval,undef,1);
if ($display) {
$display=~s/\"/\'/g;
$currentstring.=' display="'.$display.'"';
}
$currentstring.='>'.
&Apache::lonxml::get_param
('content',$parstack,$safeeval,undef,1).
'</'.$name.'>';
}
my $display=&Apache::lonxml::get_param
('display',$parstack,$safeeval,undef,1);
if ($display) {
$display=&HTML::Entities::encode($display);
$currentstring.='<'.$name.'.display>'.$display.
'</'.$name.'.display>';
}
}
} elsif ($target eq 'tex') {
my $content=&Apache::lonxml::get_param('content',$parstack,$safeeval);
my $name=&Apache::lonxml::get_param('name',$parstack,$safeeval);
if ((not defined $content) && (not defined $name)) {
&Apache::lonxml::startredirection();
}
}
return $currentstring;
}
sub end_meta {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
my $currentstring = '';
if ($target eq 'web') {
my $args='';
if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
if ($args ne '') {
$currentstring = $token->[4];
}
} elsif ($target eq 'tex') {
my $content=&Apache::lonxml::get_param('content',$parstack,$safeeval);
my $name=&Apache::lonxml::get_param('name',$parstack,$safeeval);
if ((not defined $content) && (not defined $name)) {
&Apache::lonxml::endredirection();
}
}
return $currentstring;
}
# accessrule
sub start_accessrule {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
my $currentstring = '';
my $eff=&Apache::lonxml::get_param
('effect',$parstack,$safeeval,undef,1);
my $realm=&Apache::lonxml::get_param
('realm',$parstack,$safeeval,undef,1);
my $role=&Apache::lonxml::get_param
('role',$parstack,$safeeval,undef,1);
$realm=~s/\s+//g;
$realm=~s/\//\_/g;
$realm=~s/^\_//;
$realm=~s/\W/\;/g;
$role=~s/\s+//g;
$role=~s/\//\_/g;
$role=~s/\W/\;/g;
if ($target eq 'web') {
my $args='';
if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
if ($args eq '') {
&Apache::lonxml::get_all_text("/accessrule",$parser);
} else {
$currentstring = $token->[4];
}
}
if ($target eq 'meta') {
$currentstring='<rule>'.$eff.':'.$realm.':'.$role.'</rule>';
}
return $currentstring;
}
sub end_accessrule {
my ($target,$token,$tagstack,$parstack,$parser) = @_;
my $currentstring = '';
if ($target eq 'web') {
my $args='';
if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
if ($args ne '') {
$currentstring = $token->[4];
}
}
return $currentstring;
}
#-- <body> tag (end tag required)
sub start_body {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
my $currentstring = '';
if ($target eq 'web') {
if ($Apache::lonhomework::parsing_a_problem) {
&Apache::lonxml::warning("<body> tag found inside of <problem> tag this can cause problems.");
return '';
}
if (!$Apache::lonxml::registered &&
$ENV{'request.state'} eq 'published') {
$currentstring.='<head>'.
&Apache::lonmenu::registerurl(undef,$target).'</head>';
}
# Accessibility
if ($ENV{'browser.imagesuppress'} eq 'on') {
delete($token->[2]->{'background'});
}
if ($ENV{'browser.fontenhance'} eq 'on') {
my $style='';
foreach my $key (keys(%{$token->[2]})) {
if ($key =~ /^style$/i) {
$style.=$token->[2]->{$key}.';';
delete($token->[2]->{$key});
}
}
$token->[2]->{'style'}=$style.'; font-size: x-large;';
}
if ($ENV{'browser.blackwhite'} eq 'on') {
delete($token->[2]->{'font'});
delete($token->[2]->{'link'});
delete($token->[2]->{'alink'});
delete($token->[2]->{'vlink'});
delete($token->[2]->{'bgcolor'});
delete($token->[2]->{'background'});
}
# Overload loads
my $onLoad='';
foreach my $key (keys(%{$token->[2]})) {
if ($key =~ /^onload$/i) {
$onLoad.=$token->[2]->{$key}.';';
delete($token->[2]->{$key});
}
}
$token->[2]->{'onload'}=&Apache::lonmenu::loadevents().';'.$onLoad;
my $onUnload='';
foreach my $key (keys(%{$token->[2]})) {
if ($key =~ /^onunload$/i) {
$onUnload.=$token->[2]->{$key}.';';
delete($token->[2]->{$key});
}
}
$token->[2]->{'onunload'}=&Apache::lonmenu::unloadevents().
';'.$onUnload;
$currentstring .= '<'.$token->[1];
foreach (keys %{$token->[2]}) {
$currentstring.=' '.$_.'="'.$token->[2]->{$_}.'"';
}
$currentstring.='>';
if ($ENV{'request.state'} ne 'published') {
$currentstring.=(<<EDITBUTTON);
<form method="post">
<input type="submit" name="editmode" value="Edit" />
</form>
EDITBUTTON
} else {
$currentstring.=&Apache::lonmenu::menubuttons(undef,$target,1);
}
} elsif ($target eq 'tex') {
$currentstring = '\begin{document}';
}
return $currentstring;
}
sub end_body {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[2];
} elsif ($target eq 'tex') {
$currentstring = '\strut\newline\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}\newline\noindent \end{document}';
}
return $currentstring;
}
#-- <center> tag (end tag required)
sub start_center {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[4];
} elsif ($target eq 'tex') {
$currentstring = '\begin{center}';
}
return $currentstring;
}
sub end_center {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[2];
} elsif ($target eq 'tex') {
$currentstring = '\end{center}';
}
return $currentstring;
}
#-- <b> tag (end tag required)
sub start_b {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[4];
} elsif ($target eq 'tex') {
$currentstring = '\textbf{';
}
return $currentstring;
}
sub end_b {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[2];
} elsif ($target eq 'tex') {
$currentstring = '}';
}
return $currentstring;
}
#-- <strong> tag (end tag required)
sub start_strong {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[4];
} elsif ($target eq 'tex') {
$currentstring = '\textbf{';
}
return $currentstring;
}
sub end_strong {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[2];
} elsif ($target eq 'tex') {
$currentstring = '}';
}
return $currentstring;
}
#-- <h1> tag (end tag required)
sub start_h1 {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring .= $token->[4];
} elsif ($target eq 'tex') {
my $pre;
my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
if (($align eq 'center') || (not defined $align)) {
$pre='\begin{center}';
} elsif ($align eq 'left') {
$pre='\rlap{';
} elsif ($align eq 'right') {
$pre=' \hfill \llap{';
}
my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
if (not defined $TeXsize) {$TeXsize="large";}
$currentstring .= $pre.'{\\'.$TeXsize.' \textbf{';
} elsif ($target eq 'meta') {
$currentstring='<subject>';
&start_output($target);
}
return $currentstring;
}
sub end_h1 {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring .= $token->[2];
} elsif ($target eq 'tex') {
my $post;
my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
if (($align eq 'center') || (not defined $align)) {
$post='\end{center}';
} elsif ($align eq 'left') {
$post='} \hfill'.'\vskip 0 mm ';
} elsif ($align eq 'right') {
$post='}'.'\vskip 0 mm ';
}
$currentstring .= '}}'.$post;
} elsif ($target eq 'meta') {
&end_output($target);
$currentstring='</subject>';
}
return $currentstring;
}
#-- <h2> tag
sub start_h2 {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring .= $token->[4];
} elsif ($target eq 'tex') {
my $pre;
my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
if (($align eq 'center') || (not defined $align)) {
$pre='\begin{center}';
} elsif ($align eq 'left') {
$pre='\rlap{';
} elsif ($align eq 'right') {
$pre=' \hfill \llap{';
}
my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
if (not defined $TeXsize) {$TeXsize="large";}
$currentstring .= $pre.'{\\'.$TeXsize.' \textbf{';
}
return $currentstring;
}
sub end_h2 {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring .= $token->[2];
} elsif ($target eq 'tex') {
my $post;
my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
if (($align eq 'center') || (not defined $align)) {
$post='\end{center}';
} elsif ($align eq 'left') {
$post='} \hfill'.'\vskip 0 mm ';
} elsif ($align eq 'right') {
$post='}'.'\vskip 0 mm ';
}
$currentstring .= '}}'.$post;
}
return $currentstring;
}
#-- <h3> tag
sub start_h3 {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring .= $token->[4];
} elsif ($target eq 'tex') {
my $pre;
my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
if (($align eq 'center') || (not defined $align)) {
$pre='\begin{center}';
} elsif ($align eq 'left') {
$pre='\rlap{';
} elsif ($align eq 'right') {
$pre=' \hfill \llap{';
}
my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
if (not defined $TeXsize) {$TeXsize="large";}
$currentstring .= $pre.'{\\'.$TeXsize.' \textbf{';
}
return $currentstring;
}
sub end_h3 {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring .= $token->[2];
} elsif ($target eq 'tex') {
my $post;
my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
if (($align eq 'center') || (not defined $align)) {
$post='\end{center}';
} elsif ($align eq 'left') {
$post='} \hfill'.'\vskip 0 mm ';
} elsif ($align eq 'right') {
$post='}'.'\vskip 0 mm ';
}
$currentstring .= '}}'.$post;
}
return $currentstring;
}
#-- <h4> tag
sub start_h4 {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring .= $token->[4];
} elsif ($target eq 'tex') {
my $pre;
my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
if (($align eq 'center') || (not defined $align)) {
$pre='\begin{center}';
} elsif ($align eq 'left') {
$pre='\rlap{';
} elsif ($align eq 'right') {
$pre=' \hfill \llap{';
}
my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
if (not defined $TeXsize) {$TeXsize="large";}
$currentstring .= $pre.'{\\'.$TeXsize.' \textbf{';
}
return $currentstring;
}
sub end_h4 {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring .= $token->[2];
} elsif ($target eq 'tex') {
my $post;
my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
if (($align eq 'center') || (not defined $align)) {
$post='\end{center}';
} elsif ($align eq 'left') {
$post='} \hfill'.'\vskip 0 mm ';
} elsif ($align eq 'right') {
$post='}'.'\vskip 0 mm ';
}
$currentstring .= '}}'.$post;
}
return $currentstring;
}
#-- <h5> tag
sub start_h5 {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring .= $token->[4];
} elsif ($target eq 'tex') {
my $pre;
my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
if (($align eq 'center') || (not defined $align)) {
$pre='\begin{center}';
} elsif ($align eq 'left') {
$pre='\rlap{';
} elsif ($align eq 'right') {
$pre=' \hfill \llap{';
}
my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
if (not defined $TeXsize) {$TeXsize="large";}
$currentstring .= $pre.'{\\'.$TeXsize.' \textbf{';
}
return $currentstring;
}
sub end_h5 {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring .= $token->[2];
} elsif ($target eq 'tex') {
my $post;
my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
if (($align eq 'center') || (not defined $align)) {
$post='\end{center}';
} elsif ($align eq 'left') {
$post='} \hfill'.'\vskip 0 mm ';
} elsif ($align eq 'right') {
$post='}'.'\vskip 0 mm ';
}
$currentstring .= '}}'.$post;
}
return $currentstring;
}
#-- <h6> tag
sub start_h6 {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring .= $token->[4];
} elsif ($target eq 'tex') {
my $pre;
my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
if (($align eq 'center') || (not defined $align)) {
$pre='\begin{center}';
} elsif ($align eq 'left') {
$pre='\rlap{';
} elsif ($align eq 'right') {
$pre=' \hfill \llap{';
}
my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0);
if (not defined $TeXsize) {$TeXsize="large";}
$currentstring .= $pre.'{\\'.$TeXsize.' \textbf{';
}
return $currentstring;
}
sub end_h6 {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring .= $token->[2];
} elsif ($target eq 'tex') {
my $post;
my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
if (($align eq 'center') || (not defined $align)) {
$post='\end{center}';
} elsif ($align eq 'left') {
$post='} \hfill'.'\vskip 0 mm ';
} elsif ($align eq 'right') {
$post='}'.'\vskip 0 mm ';
}
$currentstring .= '}}'.$post;
}
return $currentstring;
}
#--- <cite> tag (end tag required)
sub start_cite {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring .= $token->[4];
} elsif ($target eq 'tex') {
$currentstring .= '\textit{';
}
return $currentstring;
}
sub end_cite {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring .= $token->[2];
} elsif ($target eq 'tex') {
$currentstring .= '}';
}
return $currentstring;
}
#-- <i> tag (end tag required)
sub start_i {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring .= $token->[4];
} elsif ($target eq 'tex') {
$currentstring .= '\textit{';
}
return $currentstring;
}
sub end_i {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring .= $token->[2];
} elsif ($target eq 'tex') {
$currentstring .= '}';
}
return $currentstring;
}
#-- <address> tag (end tag required)
sub start_address {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring .= $token->[4];
} elsif ($target eq 'tex') {
$currentstring .= '\textit{';
}
return $currentstring;
}
sub end_address {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring .= $token->[2];
} elsif ($target eq 'tex') {
$currentstring .= '}';
}
return $currentstring;
}
#-- <dfn> tag (end tag required)
sub start_dfn {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring .= $token->[4];
} elsif ($target eq 'tex') {
$currentstring .= '\textit{';
}
return $currentstring;
}
sub end_dfn {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring .= $token->[2];
} elsif ($target eq 'tex') {
$currentstring .= '}';
}
return $currentstring;
}
#-- <tt> tag (end tag required)
sub start_tt {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring .= $token->[4];
} elsif ($target eq 'tex') {
$currentstring .= '\texttt{';
}
return $currentstring;
}
sub end_tt {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring .= $token->[2];
} elsif ($target eq 'tex') {
$currentstring .= '}';
}
return $currentstring;
}
#-- <kbd> tag (end tag required)
sub start_kbd {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring .= $token->[4];
} elsif ($target eq 'tex') {
$currentstring .= '\texttt{';
}
return $currentstring;
}
sub end_kbd {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring .= $token->[2];
} elsif ($target eq 'tex') {
$currentstring .= '}';
}
return $currentstring;
}
#-- <code> tag (end tag required)
sub start_code {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring .= $token->[4];
} elsif ($target eq 'tex') {
$currentstring .= '\texttt{';
}
return $currentstring;
}
sub end_code {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring .= $token->[2];
} elsif ($target eq 'tex') {
$currentstring .= '}';
}
return $currentstring;
}
#-- <em> tag (end tag required)
sub start_em {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring .= $token->[4];
} elsif ($target eq 'tex') {
$currentstring .= '\emph{';
}
return $currentstring;
}
sub end_em {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring .= $token->[2];
} elsif ($target eq 'tex') {
$currentstring .= '}';
}
return $currentstring;
}
#-- <q> tag (end tag required)
sub start_q {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring .= $token->[4];
} elsif ($target eq 'tex') {
$currentstring .= '\emph{';
}
return $currentstring;
}
sub end_q {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring .= $token->[2];
} elsif ($target eq 'tex') {
$currentstring .= '}';
}
return $currentstring;
}
#-- <p> tag (end tag optional)
sub start_p {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring .= $token->[4];
} elsif ($target eq 'tex') {
my $signal=1;
foreach my $tag (@$tagstack) {if (lc($tag) eq 'b') {$signal=0;}}
if ($signal) {$currentstring .= '\par ';}
}
return $currentstring;
}
sub end_p {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring .= $token->[2];
}
return $currentstring;
}
#-- <br> tag (end tag forbidden)
sub start_br {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring .= $token->[4];
} elsif ($target eq 'tex') {
if ($$tagstack[-2] ne 'sub' && $$tagstack[-2] ne 'sup') {
$currentstring .= '\vskip 0.2 mm ';
}
}
return $currentstring;
}
sub end_br {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring .= $token->[2];
}
return $currentstring;
}
#-- <big> tag (end tag required)
sub start_big {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring .= $token->[4];
} elsif ($target eq 'tex') {
$currentstring .= '{\large ';
}
return $currentstring;
}
sub end_big {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring .= $token->[2];
} elsif ($target eq 'tex') {
$currentstring .= '}';
}
return $currentstring;
}
#-- <small> tag (end tag required)
sub start_small {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring .= $token->[4];
} elsif ($target eq 'tex') {
$currentstring .= '{\footnotesize ';
}
return $currentstring;
}
sub end_small {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring .= $token->[2];
} elsif ($target eq 'tex') {
$currentstring .= '}';
}
return $currentstring;
}
#-- <basefont> tag (end tag forbidden)
sub start_basefont {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[4];
} elsif ($target eq 'tex') {
my $basesize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
if (defined $basesize) {
$currentstring = '{\\'.$basesize.' ';
}
}
return $currentstring;
}
sub end_basefont {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[4];
} elsif ($target eq 'tex') {
my $basesize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
if (defined $basesize) {
$currentstring = '}';
}
}
return $currentstring;
}
#-- <font> tag (end tag required)
sub start_font {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
my $currentstring = '';
if ($target eq 'web') {
my $face=&Apache::lonxml::get_param('face',$parstack,$safeeval);
if ($face=~/symbol/i) {
$Apache::lonxml::prevent_entity_encode++;
} else {
if (($ENV{'browser.fontenhance'} eq 'on') ||
($ENV{'browser.blackwhite'} eq 'on')) { return ''; }
}
$currentstring = $token->[4];
} elsif ($target eq 'tex') {
my $fontsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
if (defined $fontsize) {
$currentstring = '{\\'.$fontsize.' ';
}
}
return $currentstring;
}
sub end_font {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
my $currentstring = '';
if ($target eq 'web') {
my $face=&Apache::lonxml::get_param('face',$parstack,$safeeval);
if ($face=~/symbol/i) {$Apache::lonxml::prevent_entity_encode--;}
$currentstring = $token->[2];
} elsif ($target eq 'tex') {
my $fontsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
if (defined $fontsize) {
$currentstring = '}';
}
}
return $currentstring;
}
#-- <strike> tag (end tag required)
sub start_strike {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring .= $token->[4];
} elsif ($target eq 'tex') {
&Apache::lonxml::startredirection();
}
return $currentstring;
}
sub end_strike {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring .= $token->[2];
} elsif ($target eq 'tex') {
$currentstring=&Apache::lonxml::endredirection();
$currentstring=~s/(\S)(\s+)(\S)/$1\}$2\\underline\{$3/g;
$currentstring=~s/^\s*(\S)/\\underline\{$1/;
$currentstring=~s/(\S)\s*$/$1\}/;
}
return $currentstring;
}
#-- <s> tag (end tag required)
sub start_s {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring .= $token->[4];
} elsif ($target eq 'tex') {
&Apache::lonxml::startredirection();
}
return $currentstring;
}
sub end_s {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring .= $token->[2];
} elsif ($target eq 'tex') {
$currentstring=&Apache::lonxml::endredirection();
$currentstring=~s/(\S)(\s+)(\S)/$1\}$2\\underline\{$3/g;
$currentstring=~s/^\s*(\S)/\\underline\{$1/;
$currentstring=~s/(\S)\s*$/$1\}/;
}
return $currentstring;
}
#-- <sub> tag (end tag required)
sub start_sub {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring .= $token->[4];
} elsif ($target eq 'tex') {
$currentstring .= "\$_{";
}
return $currentstring;
}
sub end_sub {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring .= $token->[2];
} elsif ($target eq 'tex') {
$currentstring .= "}\$";
}
return $currentstring;
}
#-- <sup> tag (end tag required)
sub start_sup {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring .= $token->[4];
} elsif ($target eq 'tex') {
$currentstring .= "\$^{";
}
return $currentstring;
}
sub end_sup {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring .= $token->[2];
} elsif ($target eq 'tex') {
$currentstring .= "}\$";
}
return $currentstring;
}
#-- <hr> tag (end tag forbidden)
sub start_hr {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring .= $token->[4];
} elsif ($target eq 'tex') {
my $LaTeXwidth = &Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
if (defined $LaTeXwidth) {
if ($LaTeXwidth=~/^%/) {
substr($LaTeXwidth,0,1)='';
$LaTeXwidth=($LaTeXwidth/100).'\textwidth';
}
} else {
$LaTeXwidth ='0.9\textwidth';
}
my ($pre,$post);
my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
if (($align eq 'center') || (not defined $align)) {
$pre=''; $post='';
} elsif ($align eq 'left') {
$pre='\rlap{'; $post='} \hfill';
} elsif ($align eq 'right') {
$pre=' \hfill \llap{'; $post='}';
}
$currentstring .= ' \vskip 0 mm \noindent\makebox['.$LaTeXwidth.']{'.$pre.'\makebox['.
$LaTeXwidth.'][b]{\hrulefill}'.$post.'}\vskip 0 mm ';
}
return $currentstring;
}
sub end_hr {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring .= $token->[2];
}
return $currentstring;
}
#-- <div> tag (end tag required)
sub start_div {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring .= $token->[4];
}
return $currentstring;
}
sub end_div {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring .= $token->[2];
}
return $currentstring;
}
#-- <a> tag (end tag required)
sub start_a {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring .= $token->[4];
} elsif ($target eq 'tex') {
my $a=&Apache::lonxml::get_param('href',$parstack,$safeeval,undef,1);
my $b=&Apache::lonxml::get_param('name',$parstack,$safeeval,undef,1);
if ($a=~/\S/) {
$a=~s/([^\\])%/$1\\\%/g;
$currentstring .= '\ref{URI: '.$a.'}';
} elsif ($b=~/\S/) {
$currentstring .= '\ref{Anchor: '.$b.'}';
} else {
$currentstring.='';
}
}
return $currentstring;
}
sub end_a {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring .= $token->[2];
}
return $currentstring;
}
#-- <li> tag (end tag optional)
sub start_li {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[4];
} elsif ($target eq 'tex') {
my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,1);
if ($type=~/circle/) {
$currentstring .= ' \item[o] ';
} elsif ($type=~/square/) {
$currentstring .= ' \item[$\Box$] ';
} elsif ($type ne '') {
$currentstring .= ' \item['.$type.'] ';
} else {
$currentstring .= ' \item ';
}
}
return $currentstring;
}
sub end_li {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[2];
}
return $currentstring;
}
#-- <u> tag (end tag required)
sub start_u {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring .= $token->[4];
} elsif ($target eq 'tex') {
&Apache::lonxml::startredirection();
}
return $currentstring;
}
sub end_u {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring .= $token->[2];
} elsif ($target eq 'tex') {
$currentstring=&Apache::lonxml::endredirection();
$currentstring=~s/(\S)(\s+)(\S)/$1\}$2\\underline\{$3/g;
$currentstring=~s/^\s*(\S)/\\underline\{$1/;
$currentstring=~s/(\S)\s*$/$1\}/;
}
return $currentstring;
}
#-- <ul> tag (end tag required)
sub start_ul {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[4];
} elsif ($target eq 'tex') {
my $TeXtype=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,0);
if ($TeXtype eq 'disc') {
$currentstring .= ' \renewcommand{\labelitemi}{$\bullet$}
\renewcommand{\labelitemii}{$\bullet$}
\renewcommand{\labelitemiii}{$\bullet$}
\renewcommand{\labelitemiv}{$\bullet$}';
} elsif ($TeXtype eq 'circle') {
$currentstring .= ' \renewcommand{\labelitemi}{$\circ$}
\renewcommand{\labelitemii}{$\circ$}
\renewcommand{\labelitemiii}{$\circ$}
\renewcommand{\labelitemiv}{$\circ$}';
} elsif ($TeXtype eq 'square') {
$currentstring .= ' \renewcommand{\labelitemi}{$\diamond$}
\renewcommand{\labelitemii}{$\diamond$}
\renewcommand{\labelitemiii}{$\diamond$}
\renewcommand{\labelitemiv}{$\diamond$}';
}
$currentstring .= '\begin{itemize}';
}
return $currentstring;
}
sub end_ul {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[2];
} elsif ($target eq 'tex') {
$currentstring = '\end{itemize} \renewcommand{\labelitemi}{$\bullet$}
\renewcommand{\labelitemii}{$\bullet$}
\renewcommand{\labelitemiii}{$\bullet$}
\renewcommand{\labelitemiv}{$\bullet$}';
}
return $currentstring;
}
#-- <menu> tag (end tag required)
sub start_menu {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[4];
} elsif ($target eq 'tex') {
$currentstring = " \\begin{itemize} ";
}
return $currentstring;
}
sub end_menu {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[2];
} elsif ($target eq 'tex') {
$currentstring = " \\end{itemize}";
}
return $currentstring;
}
#-- <dir> tag (end tag required)
sub start_dir {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[4];
} elsif ($target eq 'tex') {
$currentstring = " \\begin{itemize} ";
}
return $currentstring;
}
sub end_dir {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[2];
} elsif ($target eq 'tex') {
$currentstring = " \\end{itemize}";
}
return $currentstring;
}
#-- <ol> tag (end tag required)
sub start_ol {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[4];
} elsif ($target eq 'tex') {
my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,0);
if ($type eq '1') {
$currentstring .= ' \renewcommand{\labelenumi}{\arabic{enumi}.}
\renewcommand{\labelenumii}{\arabic{enumii}.}
\renewcommand{\labelenumiii}{\arabic{enumiii}.}
\renewcommand{\labelenumiv}{\arabic{enumiv}.}';
} elsif ($type eq 'A') {
$currentstring .= ' \renewcommand{\labelenumi}{\Alph{enumi}.}
\renewcommand{\labelenumii}{\Alph{enumii}.}
\renewcommand{\labelenumiii}{\Alph{enumiii}.}
\renewcommand{\labelenumiv}{\Alph{enumiv}.}';
} elsif ($type eq 'a') {
$currentstring .= ' \renewcommand{\labelenumi}{\alph{enumi}.}
\renewcommand{\labelenumii}{\alph{enumii}.}
\renewcommand{\labelenumiii}{\alph{enumiii}.}
\renewcommand{\labelenumiv}{\alph{enumiv}.} ';
} elsif ($type eq 'i') {
$currentstring .= ' \renewcommand{\labelenumi}{\roman{enumi}.}
\renewcommand{\labelenumii}{\roman{enumii}.}
\renewcommand{\labelenumiii}{\roman{enumiii}.}
\renewcommand{\labelenumiv}{\roman{enumiv}.} ';
} elsif ($type eq 'I') {
$currentstring .= ' \renewcommand{\labelenumi}{\Roman{enumi}.}
\renewcommand{\labelenumii}{\Roman{enumii}.}
\renewcommand{\labelenumiii}{\Roman{enumiii}.}
\renewcommand{\labelenumiv}{\Roman{enumiv}.} ';
}
$currentstring .= '\begin{enumerate}';
}
return $currentstring;
}
sub end_ol {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[2];
} elsif ($target eq 'tex') {
$currentstring = '\end{enumerate} \renewcommand{\labelenumi}{\arabic{enumi}.}
\renewcommand{\labelenumii}{\arabic{enumii}.}
\renewcommand{\labelenumiii}{\arabic{enumiii}.}
\renewcommand{\labelenumiv}{\arabic{enumiv}.}';
}
return $currentstring;
}
#-- <dl> tag (end tag required)
sub start_dl {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[4];
} elsif ($target eq 'tex') {
$currentstring = '\begin{description}';
@Apache::londefdef::description=();
$Apache::londefdef::DD_redirection=0;
$Apache::londefdef::DT_redirection=0;
}
return $currentstring;
}
sub end_dl {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[2];
} elsif ($target eq 'tex') {
if ($Apache::londefdef::DT_redirection) {
my $data=&item_cleanup;
push @Apache::londefdef::description,'\item['.$data.']';
$Apache::londefdef::DT_redirection=0;
} elsif ($Apache::londefdef::DD_redirection) {
$Apache::londefdef::description[-1].=&Apache::lonxml::endredirection();
}
foreach my $element (@Apache::londefdef::description) {
$currentstring.=' '.$element.' ';
}
@Apache::londefdef::description=();
$currentstring.='\end{description}';
}
return $currentstring;
}
#-- <dt> tag (end tag optional)
sub start_dt {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
my $currentstring='';
if ($target eq 'web') {
$currentstring = $token->[4];
} elsif ($target eq 'tex') {
if ($Apache::londefdef::DT_redirection) {
my $data=&item_cleanup;
push @Apache::londefdef::description,'\item['.$data.']';
$Apache::londefdef::DT_redirection=0;
} elsif ($Apache::londefdef::DD_redirection) {
$Apache::londefdef::description[-1].=&Apache::lonxml::endredirection();
$Apache::londefdef::DD_redirection=0;
}
&Apache::lonxml::startredirection();
$Apache::londefdef::DT_redirection=1;
}
return $currentstring;
}
sub end_dt {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[2];
} elsif ($target eq 'tex') {
my $data=&item_cleanup;
push @Apache::londefdef::description,'\item['.$data.']';
$Apache::londefdef::DT_redirection=0;
}
return $currentstring;
}
sub item_cleanup {
my $item=&Apache::lonxml::endredirection();
$item=~s/\\begin{center}//g;
$item=~s/\\end{center}//g;
return $item;
}
#-- <dd> tag (end tag optional)
sub start_dd {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[4];
} elsif ($target eq 'tex') {
if ($Apache::londefdef::DT_redirection) {
my $data=&item_cleanup;
push @Apache::londefdef::description,'\item['.$data.']';
$Apache::londefdef::DT_redirection=0;
}
$Apache::londefdef::DD_redirection=1;
&Apache::lonxml::startredirection();
}
return $currentstring;
}
sub end_dd {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[2];
} elsif ($target eq 'tex') {
$Apache::londefdef::description[-1].=&Apache::lonxml::endredirection();
$Apache::londefdef::DD_redirection=0;
}
return $currentstring;
}
#-- <table> tag (end tag required)
sub start_table {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
my $textwidth='';
if (not defined @Apache::londefdef::table) {
$textwidth=&recalc($ENV{'form.textwidth'});
$textwidth=~/(\d+\.?\d*)/;
$textwidth=0.95*$1;
} else {
$textwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
}
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[4];
} elsif ($target eq 'tex') {
my $aa = {};
push @Apache::londefdef::table, $aa;
$Apache::londefdef::table[-1]{'row_number'} = -1;
#table's width
my $TeXwidth = &Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
if (not defined $TeXwidth) {
my $htmlwidth = &Apache::lonxml::get_param('width',$parstack,$safeeval,undef,1);
if ($htmlwidth=~/%/) {
$htmlwidth=~/(\d+)/;
my $value=$1*$textwidth/100;
$Apache::londefdef::table[-1]{'width'}=$value;
} else {
$Apache::londefdef::table[-1]{'width'}=$textwidth;
}
} elsif ($TeXwidth=~/%/) {
$TeXwidth=~/(\d+)/;
my $value=$1*$textwidth/100;
$Apache::londefdef::table[-1]{'width'}=$value;
} else {
$Apache::londefdef::table[-1]{'width'}=$textwidth;
}
#table's border
my $border = &Apache::lonxml::get_param('border',$parstack,$safeeval,undef,1);
unless (defined $border) { $border = 0; }
if ($border) {
$Apache::londefdef::table[-1]{'hinc'} = '\hline ';
$Apache::londefdef::table[-1]{'vinc'} = '&';
$Apache::londefdef::table[-1]{'vvinc'} = '|';
} else {
$Apache::londefdef::table[-1]{'hinc'} = '';
$Apache::londefdef::table[-1]{'vinc'} = '&';
$Apache::londefdef::table[-1]{'vvinc'} = '';
}
$Apache::londefdef::table[-1]{'output'} = ' \noindent \begin{tabular} ';
$currentstring = '\keephidden{NEW TABLE ENTRY}';
}
return $currentstring;
}
sub end_table {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[2];
} elsif ($target eq 'tex') {
my $inmemory = '';
my $output = '';
#construct header of the table
my $header_of_table = '{'.$Apache::londefdef::table[-1]{'vvinc'};
for (my $in=0;$in<=$Apache::londefdef::table[-1]{'counter_columns'};$in++) {
$header_of_table .= $Apache::londefdef::table[-1]{'columns'}[$in].$Apache::londefdef::table[-1]{'vvinc'};
}
$header_of_table .= '}';
#define the length of the table cells
#always starts with TeXwidth (if defined everything else is ignored)
my @length_row_final = split(/,/,$Apache::londefdef::table[-1]{'TeXlengthrow'}[0]);
for (my $in=1;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
my @length_row = split(/,/,$Apache::londefdef::table[-1]{'TeXlengthrow'}[$in]);
for (my $jn=0;$jn<=$#length_row;$jn++) {
if ($length_row_final[$jn]<$length_row[$jn]) {$length_row_final[$jn]=$length_row[$jn];}
}
}
#continues trying estimate the width of raw data
my @length_raw_row = split(/,/,$Apache::londefdef::table[-1]{'lengthrow'}[0]);
for (my $in=1;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
my @length_row = split(/,/,$Apache::londefdef::table[-1]{'lengthrow'}[$in]);
for (my $jn=0;$jn<=$#length_row;$jn++) {
if ($length_raw_row[$jn]<$length_row[$jn]) {$length_raw_row[$jn]=$length_row[$jn];}
}
}
#comparing of TeXwidth and raw data width
my $available_length=$Apache::londefdef::table[-1]{'width'};
my $needed=0;
for (my $jn=0;$jn<=$#length_row_final;$jn++) {
if ($length_row_final[$jn]!=0) {
$available_length=$available_length-$length_row_final[$jn];
$needed++;
}
}
$needed=$#length_row_final-$needed+1;
for (my $jn=0;$jn<=$#length_row_final;$jn++) {
if ($length_row_final[$jn]==0) {
if ($length_raw_row[$jn]<$available_length) {
$length_row_final[$jn]=$length_raw_row[$jn];
$available_length=$available_length-$length_raw_row[$jn];
$needed--;
}
}
}
for (my $jn=0;$jn<=$#length_row_final;$jn++) {
if ($length_row_final[$jn]==0) {
$length_row_final[$jn]=0.9*$available_length/$needed;
}
}
#fill the table
for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
for (my $jn=0;$jn<=$#length_row_final;$jn++) {
my $substituted=$length_row_final[$jn];
$Apache::londefdef::table[-1]{'rowdata'}[$in]=~s/TOBECHANGEDONNUMBER/$substituted mm/;
}
$output .= $Apache::londefdef::table[-1]{'rowdata'}[$in];
chop $output;
$output .= ' \\\\ ';
}
$Apache::londefdef::table[-1]{'output'} .= $header_of_table.$output.$Apache::londefdef::table[-1]{'hinc'}.'\end{tabular}\vskip 0 mm ';
if ($#Apache::londefdef::table > 0) {
my $inmemory = $Apache::londefdef::table[-1]{'output'};
pop @Apache::londefdef::table;
push @{$Apache::londefdef::table[-1]{'include'}}, $inmemory;
} else {
$currentstring .= $Apache::londefdef::table[-1]{'output'};
pop @Apache::londefdef::table;
undef @Apache::londefdef::table;
}
}
return $currentstring;
}
#-- <tr> tag (end tag optional)
sub start_tr {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[4];
} elsif ($target eq 'tex') {
$Apache::londefdef::table[-1]{'row_number'}++;
my $alignchar = substr(&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1),0,1);
if ($alignchar ne '') {
push @ {$Apache::londefdef::table[-1]{'rows'} }, $alignchar;
} else {
push @ {$Apache::londefdef::table[-1]{'rows'} }, 'l';
}
push ( @{ $Apache::londefdef::table[-1]{'rowdata'} }, $Apache::londefdef::table[-1]{'hinc'});
$Apache::londefdef::table[-1]{'counter_columns'} = -1;
$Apache::londefdef::table[-1]{'TeXlength'} = '';
$Apache::londefdef::table[-1]{'length'} = '';
}
return $currentstring;
}
sub end_tr {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[2];
} elsif ($target eq 'tex') {
if ($Apache::londefdef::TD_redirection) {
&end_td_tex($parstack,$parser,$safeeval);
}
push @{ $Apache::londefdef::table[-1]{'TeXlengthrow'} },$Apache::londefdef::table[-1]{'TeXlength'};
push @{ $Apache::londefdef::table[-1]{'lengthrow'} },$Apache::londefdef::table[-1]{'length'};
}
return $currentstring;
}
#-- <td> tag (end tag optional)
sub start_td {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[4];
} elsif ($target eq 'tex') {
$Apache::londefdef::TD_redirection = 1;
&tag_check('tr','td',$tagstack,$parstack,$parser,$safeeval);
}
return $currentstring;
}
sub tag_check {
my ($good_tag,$bad_tag,$tagstack,$parstack,$parser,$safeeval) = @_;
my @ar=@$parstack;
for (my $i=$#ar-1;$i>=0;$i--) {
if (lc($$tagstack[$i]) eq $good_tag) {
&start_td_tex($parstack,$parser,$safeeval);
last;
} elsif (lc($$tagstack[$i]) eq $bad_tag) {
splice @ar, $i+1;
&end_td_tex(\@ar,$parser,$safeeval);
&start_td_tex($parstack,$parser,$safeeval);
last;
}
}
return '';
}
sub start_td_tex {
my ($parstack,$parser,$safeeval) = @_;
my $what_to_push = substr(&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1),0,1);
if ($what_to_push eq '') {
$what_to_push = substr($Apache::londefdef::table[-1]{'rows'}[0],0,1);;
}
push @{ $Apache::londefdef::table[-1]{'columns'} }, $what_to_push;
$Apache::londefdef::table[-1]{'counter_columns'}++;
&Apache::lonxml::startredirection();
return '';
}
sub end_td_tex {
my ($parstack,$parser,$safeeval) = @_;
my $current_row = $Apache::londefdef::table[-1]{'row_number'};
my $data=&Apache::lonxml::endredirection();
my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
if (defined $TeXwidth) {
my $current_length=&recalc($TeXwidth);
$current_length=~/(\d+)/;
$Apache::londefdef::table[-1]{'TeXlength'} .= $1.',';
$Apache::londefdef::table[-1]{'length'} .= '0,';
} else {
if ($data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) {
my $current_length=&recalc($1);
$current_length=~/(\d+\.?\d*)/;
$Apache::londefdef::table[-1]{'TeXlength'} .= $1.',';
$Apache::londefdef::table[-1]{'length'} .= '0,';
} else {
$data=~s/^\s+(\S.*)/$1/;
$data=~s/(.*\S)\s+$/$1/;
$data=~s/(\s)+/$1/;
my $current_length=0;
if ($data=~/\\vskip/) {
my $newdata=$data;
$newdata=~s/\\vskip \d*\.?\d*\s*mm/THISISJUSTTEMPORARYSEPARATOR/g;
my @newdata=split(/THISISJUSTTEMPORARYSEPARATOR/,$newdata);
foreach my $elementdata (@newdata) {
my $lengthnewdata=1.8*LATEX_length($elementdata);
if ($lengthnewdata>$current_length) {$current_length=$lengthnewdata;}
}
} else {
$current_length=1.8*LATEX_length($data);
}
$Apache::londefdef::table[-1]{'length'} .= $current_length.',';
$Apache::londefdef::table[-1]{'TeXlength'} .= '0,';
}
}
for (my $in=0; $in<=$#{$Apache::londefdef::table[-1]{'include'}};$in++) {
$data=~s/\\keephidden\{NEW TABLE ENTRY\}/$Apache::londefdef::table[-1]{'include'}[$in]/;
}
@{ $Apache::londefdef::table[-1]{'rowdata'} }[$current_row] .= '\parbox{TOBECHANGEDONNUMBER}{'.$data.'} '.$Apache::londefdef::table[-1]{'vinc'};
return'';
}
sub end_td {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[2];
} elsif ($target eq 'tex') {
$Apache::londefdef::TD_redirection =0;
&end_td_tex($parstack,$parser,$safeeval);
}
return $currentstring;
}
#-- <th> tag (end tag optional)
sub start_th {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[4];
} elsif ($target eq 'tex') {
my $what_to_push = substr(&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1),0,1);
if ($what_to_push eq '') {
$what_to_push = substr($Apache::londefdef::table[-1]{'rows'}[0],0,1);;
}
push @{ $Apache::londefdef::table[-1]{'columns'} }, $what_to_push;
$Apache::londefdef::table[-1]{'counter_columns'}++;
&Apache::lonxml::startredirection();
}
return $currentstring;
}
sub end_th {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[2];
} elsif ($target eq 'tex') {
my $current_row = $Apache::londefdef::table[-1]{'row_number'};
my $data=&Apache::lonxml::endredirection();
my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
if (defined $TeXwidth) {
my $current_length=&recalc($TeXwidth);
$current_length=~/(\d+)/;
$Apache::londefdef::table[-1]{'TeXlength'} .= $1.',';
$Apache::londefdef::table[-1]{'length'} .= '0,';
} else {
if ($data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) {
my $current_length=&recalc($1);
$current_length=~/(\d+)/;
$Apache::londefdef::table[-1]{'TeXlength'} .= $1.',';
$Apache::londefdef::table[-1]{'length'} .= '0,';
} else {
$data=~/^\s*(\S.*)/;
$data=$1;
$data=~/(.*\S)\s*$/;
$data=$1;
my $current_length=2*length($data);
$Apache::londefdef::table[-1]{'length'} .= $current_length.',';
$Apache::londefdef::table[-1]{'TeXlength'} .= '0,';
}
}
for (my $in=0; $in<=$#{$Apache::londefdef::table[-1]{'include'}};$in++) {
$data=~s/\\keephidden\{NEW TABLE ENTRY\}/$Apache::londefdef::table[-1]{'include'}[$in]/;
}
$data='\textbf{'.$data.'}';
@{ $Apache::londefdef::table[-1]{'rowdata'} }[$current_row] .= '\parbox{TOBECHANGEDONNUMBER}{'.$data.'} '.$Apache::londefdef::table[-1]{'vinc'};
}
return $currentstring;
}
#-- <img> tag (end tag forbidden)
sub start_img {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
my $src = &Apache::lonxml::get_param('src',$parstack,$safeeval,
undef,1);
if (not $src and ($target eq 'web' or $target eq 'tex')) {
my $inside = &Apache::lonxml::get_all_text("/img",$parser);
&Apache::lonnet::logthis("inside was $inside");
return '';
}
$Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=$src;
my $currentstring = '';
my $width_param = '';
my $height_param = '';
my $scaling = .3;
if ($target eq 'web') {
if ($ENV{'browser.imagesuppress'} ne 'on') {
$currentstring.= $token->[4];
} else {
my $alttag= &Apache::lonxml::get_param
('alt',$parstack,$safeeval,undef,1);
unless ($alttag) {
$alttag=&Apache::lonmeta::alttag
($Apache::lonxml::pwd[-1],$src);
}
$currentstring.='[IMAGE: '.$alttag.']';
}
} elsif ($target eq 'tex') {
$src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src);
&image_replication($src);
#if original gif/jpg/png file exist do following:
if (-e $src) {
#defines the default size of image
my $image = Image::Magick->new;
my $current_figure = $image->Read($src);
$width_param = $image->Get('width') * $scaling;;
$height_param = $image->Get('height') * $scaling;;
undef $image;
#do we have any specified size of the picture?
my $TeXwidth = &Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval);
my $TeXheight = &Apache::lonxml::get_param('TeXheight',$parstack,$safeeval);
my $width = &Apache::lonxml::get_param('width',$parstack,$safeeval,
undef,1);
if ($TeXwidth ne '') {
if ($TeXwidth=~/(\d+)\s*\%/) {
$width_param = $1*$ENV{'form.textwidth'}/100;
} else {
$width_param = $TeXwidth;
}
} elsif ($TeXheight ne '') {
$width_param = $TeXheight/$height_param*$width_param;
} elsif ($width ne '') {
$width_param = $width*$scaling;
}
if ($width_param > $ENV{'form.textwidth'}) {$width_param =0.95*$ENV{'form.textwidth'}}
my $file;
my $path;
if ($src =~ m!(.*)/([^/]*)$!) {
$file = $2;
$path = $1.'/';
}
my $newsrc = $src;
$newsrc =~ s/\.(gif|jpg|png)$/.eps/i;
$file=~s/\.(gif|jpg|png)$/.eps/i;
#where can we find the picture?
if (-e $newsrc) {
#eps counterpart for image exist
if ($path) {
$currentstring .= '\vskip 1 mm \noindent\graphicspath{{'.$path.'}}\includegraphics[width='.$width_param.' mm]{'.$file.'} ';
}
} else {
#there is no eps counterpart for image - check for ps one
$newsrc =~ s/\.eps$/\.ps/;
if (-e $newsrc) {
#ps counterpart for image exist
$file =~ s/\.eps$/\.ps/;
if ($path) {
$currentstring .= '\vskip 1 mm \noindent\graphicspath{{'.$path.'}}\includegraphics[width='.$width_param.' mm]{'.$file.'} ';
}
} else {
#there aren't eps or ps - so create eps
my $temp_file;
my $filename = "/home/httpd/prtspool/$ENV{'user.name'}_$ENV{'user.domain'}_printout.dat";
$temp_file = Apache::File->new('>>'.$filename);
print $temp_file "$src\n";
$newsrc=~s/\/home\/httpd\/html\/res//;
$newsrc=~s/\/home\/([^\/]*)\/public_html\//\/$1\//;
$newsrc=~s/\/\.\//\//;
$newsrc=~s/\/([^\/]+)\.(ps|eps)/\//;
$currentstring .= '\vskip 1 mm \graphicspath{{/home/httpd/prtspool'.$newsrc.'}}\includegraphics[width='.$width_param.' mm]{'.$file.'} ';
}
}
} else {
#original image file doesn't exist so check the alt attribute
my $alt =
&Apache::lonxml::get_param('alt',$parstack,$safeeval,undef,1);
unless ($alt) {
$alt=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],$src);
}
if ($alt) {
$currentstring .= ' '.$alt.' ';
} else {
#<allow> tag will care about replication
}
}
} elsif ($target eq 'edit') {
$currentstring .=&Apache::edit::tag_start($target,$token);
$currentstring .=&Apache::edit::text_arg('Image Url:','src',$token,70).
&Apache::edit::browse('src',undef,'alt').' '.
&Apache::edit::search('src',undef,'alt').'<br />';
$currentstring .=&Apache::edit::text_arg('Description:','alt',$token,70).'<br />';
$currentstring .=&Apache::edit::text_arg('width (pixel):','width',$token,5);
$currentstring .=&Apache::edit::text_arg('height (pixel):','height',$token,5).'<br />';
$currentstring .=&Apache::edit::text_arg('TeXwidth (mm):','TeXwidth',$token,5);
$currentstring .=&Apache::edit::text_arg('TeXheight (mm):','TeXheight',$token,5);
$currentstring .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
my $src=&Apache::lonxml::get_param('src',$parstack,$safeeval);
my $alt=&Apache::lonxml::get_param('alt',$parstack,$safeeval);
my $width=&Apache::lonxml::get_param('width',$parstack,$safeeval);
my $height=&Apache::lonxml::get_param('height',$parstack,$safeeval);
$currentstring .= '<img src="'.$src.'" alt="'.$alt.'" ';
if ($width) { $currentstring.=' width="'.$width.'" '; }
if ($height) { $currentstring.=' height="'.$height.'" '; }
$currentstring .= ' />';
} elsif ($target eq 'modified') {
my $constructtag=&Apache::edit::get_new_args($token,$parstack,
$safeeval,'src','alt',
'TeXwidth','TeXheight',
'width','height');
$src=$token->[2]{'src'};
if (!$token->[2]{'width'} && !$token->[2]{'height'}) {
$src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src);
&image_replication($src);
if (-e $src) {
my $image = Image::Magick->new;
my ($width, $height, $size, $format) = $image->Ping($src);
if ($width && $height) {
$token->[2]{'width'} =$width;
$token->[2]{'height'}=$height;
$constructtag=1;
}
}
}
if ($constructtag) {$currentstring=&Apache::edit::rebuild_tag($token);}
}
return $currentstring;
}
sub end_img {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[2];
} elsif ($target eq 'tex') {
$currentstring = '';
}
return $currentstring;
}
#-- <applet> tag (end tag required)
sub start_applet {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
my $code=&Apache::lonxml::get_param('code',$parstack,$safeeval,undef,1);
$Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=$code;
my $archive=&Apache::lonxml::get_param('archive',$parstack,$safeeval,
undef,1);
$Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=$archive;
my $currentstring = '';
if ($target eq 'web') {
if ($ENV{'browser.appletsuppress'} ne 'on') {
$currentstring = $token->[4];
} else {
my $alttag= &Apache::lonxml::get_param('alt',$parstack,
$safeeval,undef,1);
unless ($alttag) {
$alttag=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],
$code);
}
$currentstring='[APPLET: '.$alttag.']';
}
} elsif ($target eq 'tex') {
my $alttag= &Apache::lonxml::get_param('alt',$parstack,
$safeeval,undef,1);
unless ($alttag) {
my $code=&Apache::lonxml::get_param('code',$parstack,$safeeval,
undef,1);
$alttag=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],
$code);
}
$currentstring.='\begin{center} \fbox{Java Applet: '.$alttag.
'.}\end{center}';
}
return $currentstring;
}
sub end_applet {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[2];
} elsif ($target eq 'tex') {
}
return $currentstring;
}
#-- <embed> tag (end tag optional/required)
sub start_embed {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
my $src=&Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
$Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=$src;
my $currentstring = '';
if ($target eq 'web') {
if ($ENV{'browser.embedsuppress'} ne 'on') {
$currentstring = $token->[4];
} else {
my $alttag=&Apache::lonxml::get_param
('alt',$parstack,$safeeval,undef,1);
unless ($alttag) {
$alttag=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],$src);
}
$currentstring='[EMBED: '.$alttag.']';
}
} elsif ($target eq 'tex') {
}
return $currentstring;
}
sub end_embed {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[2];
} elsif ($target eq 'tex') {
}
return $currentstring;
}
#-- <param> tag (end tag forbidden)
sub start_param {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
if (&Apache::lonxml::get_param
('name',$parstack,$safeeval,undef,1)=~/^cabbase$/i) {
$Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=
&Apache::lonxml::get_param('value',$parstack,$safeeval,undef,1);
}
$Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=
&Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[4];
} elsif ($target eq 'tex') {
}
return $currentstring;
}
sub end_param {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[2];
} elsif ($target eq 'tex') {
}
return $currentstring;
}
#-- <allow> tag
sub start_allow {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
my $src = &Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1);
$src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src);
$Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=
&Apache::lonnet::clutter($src);
&image_replication($src);
my $result;
if ($target eq 'edit') {
$result .=&Apache::edit::tag_start($target,$token);
$result .=&Apache::edit::text_arg('File Spec:','src',$token,70);
$result .=&Apache::edit::end_row();#.&Apache::edit::start_spanning_row();
} elsif ($target eq 'modified') {
my $constructtag=&Apache::edit::get_new_args($token,$parstack,
$safeeval,'src');
if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
}
return $result;
}
sub end_allow {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
if ( $target eq 'edit') { return (&Apache::edit::end_table()); }
return '';
}
#-- Frames (end tag required)
#-- <frameset>
sub start_frameset {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
if (!$Apache::lonxml::registered &&
$ENV{'request.state'} eq 'published') {
$currentstring.='<head>'.
&Apache::lonmenu::registerurl(undef,$target).'</head>';
}
my $onLoad='';
foreach my $key (keys(%{$token->[2]})) {
if ($key =~ /^onload$/i) {
$onLoad.=$token->[2]->{$key}.';';
delete($token->[2]->{$key});
}
}
$token->[2]->{'onload'}=&Apache::lonmenu::loadevents().';'.$onLoad;
my $onUnload='';
foreach my $key (keys(%{$token->[2]})) {
if ($key =~ /^onunload$/i) {
$onUnload.=$token->[2]->{$key}.';';
delete($token->[2]->{$key});
}
}
$token->[2]->{'onunload'}=&Apache::lonmenu::unloadevents().
';'.$onUnload;
$currentstring .= '<'.$token->[1];
foreach (keys %{$token->[2]}) {
$currentstring.=' '.$_.'="'.$token->[2]->{$_}.'"';
}
$currentstring.='>';
}
return $currentstring;
}
sub end_frameset {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[2];
}
return $currentstring;
}
#-- <xmp> (end tag required)
sub start_xmp {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring .= $token->[4];
} elsif ($target eq 'tex') {
$currentstring .= '\begin{verbatim}';
}
return $currentstring;
}
sub end_xmp {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring .= $token->[2];
} elsif ($target eq 'tex') {
$currentstring .= '\end{verbatim}';
}
return $currentstring;
}
#-- <pre> (end tag required)
sub start_pre {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring .= $token->[4];
} elsif ($target eq 'tex') {
$currentstring .= '\begin{verbatim}';
}
return $currentstring;
}
sub end_pre {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring .= $token->[2];
} elsif ($target eq 'tex') {
$currentstring .= '\end{verbatim}';
}
return $currentstring;
}
#-- <insert>
sub start_insert {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
my $currentstring = '';
if ($target eq 'web') {
my $display = &Apache::lonxml::get_param('display',$parstack,$safeeval,undef,1);
$currentstring .= '<b>'.$display.'</b>';;
}
return $currentstring;
}
sub end_insert {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring .= '';
}
return $currentstring;
}
#-- <externallink>
sub start_externallink {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
my $currentstring = '';
if ($target eq 'web') {
my $display = &Apache::lonxml::get_param('display',$parstack,$safeeval,undef,1);
$currentstring .= '<b>'.$display.'</b>';;
}
return $currentstring;
}
sub end_externallink {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring .= '';
}
return $currentstring;
}
#-- <blankspace heigth="">
sub start_blankspace {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
my $currentstring = '';
if ($target eq 'tex') {
my $howmuch = &Apache::lonxml::get_param('heigth',$parstack,$safeeval,undef,1);
$currentstring .= '\vskip '.$howmuch.' ';
}
return $currentstring;
}
sub end_blankspace {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'tex') {
$currentstring .= '';
}
return $currentstring;
}
#-- <abbr> tag (end tag required)
sub start_abbr {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[4];
}
return $currentstring;
}
sub end_abbr {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[2];
}
return $currentstring;
}
#-- <acronym> tag (end tag required)
sub start_acronym {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[4];
}
return $currentstring;
}
sub end_acronym {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[2];
}
return $currentstring;
}
#-- <area> tag (end tag forbidden)
sub start_area {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[4];
}
return $currentstring;
}
sub end_area {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[2];
}
return $currentstring;
}
#-- <base> tag (end tag forbidden)
sub start_base {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[4];
}
return $currentstring;
}
sub end_base {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[2];
}
return $currentstring;
}
#-- <bdo> tag (end tag required)
sub start_bdo {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[4];
}
return $currentstring;
}
sub end_bdo {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[2];
}
return $currentstring;
}
#-- <bgsound> tag (end tag optional)
sub start_bgsound {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[4];
}
return $currentstring;
}
sub end_bgsound {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[2];
}
return $currentstring;
}
#-- <blink> tag (end tag required)
sub start_blink {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[4];
}
return $currentstring;
}
sub end_blink {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[2];
}
return $currentstring;
}
#-- <blockquote> tag (end tag required)
sub start_blockquote {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[4];
}
return $currentstring;
}
sub end_blockquote {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[2];
}
return $currentstring;
}
#-- <button> tag (end tag required)
sub start_button {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[4];
}
return $currentstring;
}
sub end_button {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[2];
}
return $currentstring;
}
#-- <caption> tag (end tag required)
sub start_caption {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[4];
}
return $currentstring;
}
sub end_caption {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[2];
}
return $currentstring;
}
#-- <col> tag (end tag forbdden)
sub start_col {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[4];
}
return $currentstring;
}
sub end_col {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[2];
}
return $currentstring;
}
#-- <colgroup> tag (end tag optional)
sub start_colgroup {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[4];
}
return $currentstring;
}
sub end_colgroup {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[2];
}
return $currentstring;
}
#-- <del> tag (end tag required)
sub start_del {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[4];
}
return $currentstring;
}
sub end_del {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[2];
}
return $currentstring;
}
#-- <fieldset> tag (end tag required)
sub start_fieldset {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[4];
}
return $currentstring;
}
sub end_fieldset {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[2];
}
return $currentstring;
}
#-- <frame> tag (end tag forbidden)
sub start_frame {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[4];
}
return $currentstring;
}
sub end_frame {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[2];
}
return $currentstring;
}
#-- <iframe> tag (end tag required)
sub start_iframe {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[4];
}
return $currentstring;
}
sub end_iframe {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[2];
}
return $currentstring;
}
#-- <ins> tag (end tag required)
sub start_ins {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[4];
}
return $currentstring;
}
sub end_ins {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[2];
}
return $currentstring;
}
#-- <isindex> tag (end tag forbidden)
sub start_isindex {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[4];
}
return $currentstring;
}
sub end_isindex {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[2];
}
return $currentstring;
}
#-- <keygen> tag (end tag forbidden)
sub start_keygen {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[4];
}
return $currentstring;
}
sub end_keygen {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[2];
}
return $currentstring;
}
#-- <label> tag
sub start_label {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[4];
}
return $currentstring;
}
sub end_label {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[2];
}
return $currentstring;
}
#-- <layer> tag (end tag required)
sub start_layer {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[4];
}
return $currentstring;
}
sub end_layer {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[2];
}
return $currentstring;
}
#-- <legend> tag (end tag required)
sub start_legend {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[4];
}
return $currentstring;
}
sub end_legend {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[2];
}
return $currentstring;
}
#-- <link> tag (end tag forbidden)
sub start_link {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[4];
}
return $currentstring;
}
sub end_link {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[2];
}
return $currentstring;
}
#-- <marquee> tag (end tag optional)
sub start_marquee {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[4];
}
return $currentstring;
}
sub end_marquee {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[2];
}
return $currentstring;
}
#-- <multicol> tag (end tag required)
sub start_multicol {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[4];
}
return $currentstring;
}
sub end_multicol {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[2];
}
return $currentstring;
}
#-- <nobr> tag (end tag required)
sub start_nobr {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[4];
} elsif ($target eq 'tex') {
$currentstring='\mbox{';
}
return $currentstring;
}
sub end_nobr {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[2];
} elsif ($target eq 'tex') {
$currentstring='}';
}
return $currentstring;
}
#-- <noembed> tag (end tag required)
sub start_noembed {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[4];
}
return $currentstring;
}
sub end_noembed {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[2];
}
return $currentstring;
}
#-- <noframes> tag (end tag required)
sub start_noframes {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[4];
}
return $currentstring;
}
sub end_noframes {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[2];
}
return $currentstring;
}
#-- <nolayer> tag (end tag required)
sub start_nolayer {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[4];
}
return $currentstring;
}
sub end_nolayer {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[2];
}
return $currentstring;
}
#-- <noscript> tag (end tag required)
sub start_noscript {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[4];
}
return $currentstring;
}
sub end_noscript {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[2];
}
return $currentstring;
}
#-- <object> tag (end tag required)
sub start_object {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[4];
}
return $currentstring;
}
sub end_object {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[2];
}
return $currentstring;
}
#-- <optgroup> tag (end tag required)
sub start_optgroup {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[4];
}
return $currentstring;
}
sub end_optgroup {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[2];
}
return $currentstring;
}
#-- <samp> tag (end tag required)
sub start_samp {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[4];
} elsif ($target eq 'tex') {
$currentstring='\texttt{';
}
return $currentstring;
}
sub end_samp {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[2];
} elsif ($target eq 'tex') {
$currentstring='}';
}
return $currentstring;
}
#-- <server> tag
sub start_server {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[4];
}
return $currentstring;
}
sub end_server {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[2];
}
return $currentstring;
}
#-- <spacer> tag (end tag forbidden)
sub start_spacer {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[4];
}
return $currentstring;
}
sub end_spacer {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[2];
}
return $currentstring;
}
#-- <span> tag (end tag required)
sub start_span {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[4];
}
return $currentstring;
}
sub end_span {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[2];
}
return $currentstring;
}
#-- <tbody> tag (end tag optional)
sub start_tbody {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[4];
}
return $currentstring;
}
sub end_tbody {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[2];
}
return $currentstring;
}
#-- <tfoot> tag (end tag optional)
sub start_tfoot {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[4];
}
return $currentstring;
}
sub end_tfoot {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[2];
}
return $currentstring;
}
#-- <thead> tag (end tag optional)
sub start_thead {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[4];
}
return $currentstring;
}
sub end_thead {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[2];
}
return $currentstring;
}
#-- <var> tag
sub start_var {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[4];
} elsif ($target eq 'tex') {
$currentstring = '\textit{';
}
return $currentstring;
}
sub end_var {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[2];
} elsif ($target eq 'tex') {
$currentstring = '}';
}
return $currentstring;
}
#-- <wbr> tag (end tag forbidden)
sub start_wbr {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[4];
}
return $currentstring;
}
sub end_wbr {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[2];
}
return $currentstring;
}
#-- <hideweboutput> tag
sub start_hideweboutput {
my ($target,$token) = @_;
if ($target eq 'web') {
&Apache::lonxml::startredirection();
}
return '';
}
sub end_hideweboutput {
my ($target,$token) = @_;
my $currentstring = '';
if ($target eq 'web') {
$currentstring = &Apache::lonxml::endredirection();
}
return '';
}
sub image_replication {
my $src = shift;
if (not -e $src) { &Apache::lonnet::repcopy($src); }
#replicates eps or ps
my $epssrc = my $pssrc = $src;
$epssrc =~ s/\.(gif|jpg|jpeg|png)$/.eps/i;
$pssrc =~ s/\.(gif|jpg|jpeg|png)$/.ps/i;
if (not -e $epssrc && not -e $pssrc) {
my $result=&Apache::lonnet::repcopy($epssrc);
if ($result ne OK) { &Apache::lonnet::repcopy($pssrc); }
}
return '';
}
sub recalc {
my $argument = shift;
if (not $argument=~/(mm|cm|in|pc|pt)/) {return $argument.' mm';}
$argument=~/\s*(\d+\.?\d*)\s*(mm|cm|in|pc|pt)/;
my $value=$1;
my $units=$2;
if ($units eq 'cm') {
$value*=10;
} elsif ($units eq 'in') {
$value*=25.4;
} elsif ($units eq 'pc') {
$value*=(25.4*12/72.27);
} elsif ($units eq 'pt') {
$value*=(25.4/72.27);
}
return $value.' mm';
}
sub LATEX_length {
my $garbage=shift;
$garbage=~s/^\s+(\S.*)/$1/;
$garbage=~s/(.*\S)\s+$/$1/;
$garbage=~s/(\s)+/$1/;
$garbage=~s/(\\begin{([^\}]+)}|\\end{([^\}]+)})//g;
$garbage=~s/(\$\_\{|\$\_|\$\^{|\$\^|\}\$|\$)//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/(\\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/(\\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)/1/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)/ /g;
$garbage=~s/(\\hat{([^}]+)}|\\check{([^}]+)}|\\dot{([^}]+)}|\\breve{([^}]+)}|\\acute{([^}]+)}|\\ddot{([^}]+)}|\\grave{([^}]+)}|\\tilde{([^}]+)}|\\mathring{([^}]+)}|\\bar{([^}]+)}|\\vec{([^}]+)})/$1/g;
my $value=length($garbage);
return $value;
}
1;
__END__
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