--- loncom/xml/londefdef.pm 2000/10/12 13:51:50 1.5 +++ loncom/xml/londefdef.pm 2003/08/20 15:22:03 1.162 @@ -1,1071 +1,3240 @@ # The LearningOnline Network with CAPA # Tags Default Definition Module # +# $Id: londefdef.pm,v 1.162 2003/08/20 15:22:03 sakharuk 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(); + +$Apache::londefdef::TD_redirection=0; + +BEGIN { + + &Apache::lonxml::register('Apache::londefdef',('a','abbr','acronym','accessrule','address','allow','applet','area','b','base','basefont','bgo','bgsound','big','blink','blockquote','blankspace','body','br','button','caption','center','cite','code','col','colgroup','dd','del','dfn','dir','div','dl','dt','em','embed','externallink','fieldset','font','form','frame','frameset','h1','h2','h3','h4','h5','h6','head','hr','html','i','iframe','img','input','ins','insert','isindex','kbd','keygen','label','layer','legend','li','link','m','map','marquee','menu','meta','multicol','nobr','noembed','noframes','nolayer','noscript','object','ol','optgroup','option','output','p','param','pre','q','s','samp','select','server','small','spacer','span','strike','strong','sub','sup','table','tbody','td','textarea','tfoot','th','thead','title','tr','tt','tthoption','u','ul','var','wbr','hideweboutput')); -sub BEGIN { - &Apache::lonxml::register('Apache::londefdef',('m','html','head','map','applet','select','option','input','textarea','form','meta','title','body','center','b','strong','table','dt','h1','h2','h3','h4','h5','h6','cite','i','address','dd','dl','dir','ol','ul','menu','dfn','kbd','tt','code','em','q','p','br','big','small','basefont','font','s','sub','strike','sup','hr','a','li','u')); } -#===================================================================== TAG SUBROUTINES +#======================= TAG SUBROUTINES ===================== +#-- <output> +sub start_output { + my ($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,$token,$parstack,$parser) = @_; - my $currentstring = ''; - if ($target eq 'web') { - my $inside = &Apache::lonxml::get_all_text("/m",$$parser[$#$parser]); - $inside ='\\documentstyle{article}'.$inside; -# &Apache::lonxml::debug($inside); - $currentstring = &Apache::lontexconvert::converted(\$inside); -# &Apache::lonxml::debug($currentstring); +sub start_m { + my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; + my $currentstring = ''; + if ($target eq 'web') { + $Apache::lonxml::prevent_entity_encode++; + my $inside = &Apache::lonxml::get_all_text_unbalanced("/m",$parser); + $inside ='\\documentstyle{article}'.$inside; + &Apache::lonxml::debug("M is starting with:$inside:"); + my $eval=&Apache::lonxml::get_param('eval',$parstack,$safeeval); + if ($eval eq 'on') { + $inside=&Apache::run::evaluate($inside,$safeeval,$$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:"); + } elsif ($target eq 'tex') { + $currentstring = &Apache::lonxml::get_all_text_unbalanced("/m",$parser); + if ($currentstring=~/^(\s*\\\\\s*)*$/) {$currentstring = ' \vskip 0 mm ';} + } else { + my $inside = &Apache::lonxml::get_all_text_unbalanced("/m",$parser); + } + return $currentstring; +} - } elsif ($target eq 'tex') { - $currentstring = "\$"; - } - return $currentstring; - } - sub end_m { - my ($target,$token) = @_; - my $currentstring = ''; - if ($target eq 'web') { - } elsif ($target eq 'tex') { - $currentstring = "\$"; - } - return $currentstring; - } -#-------------------------------------------------------------------------- <html> tag - sub start_html { - my ($target,$token) = @_; - my $currentstring = ''; - if ($target eq 'web') { - $currentstring = $token->[4]; - } - return $currentstring; - } - sub end_html { - my ($target,$token) = @_; - my $currentstring = ''; - if ($target eq 'web') { - $currentstring = $token->[2]; - } - return $currentstring; - } -#-------------------------------------------------------------------------- <head> tag - sub start_head { - my ($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') { - $currentstring = $token->[2]; - } - return $currentstring; - } -#--------------------------------------------------------------------------- <map> tag - sub start_map { - my ($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 $currentstring; - } -#------------------------------------------------------------------------ <applet> tag - sub start_applet { - my ($target,$token) = @_; - my $currentstring = ''; - if ($target eq 'web') { - $currentstring = $token->[4]; - } - return $currentstring; - } - sub end_applet { - my ($target,$token) = @_; - my $currentstring = ''; - if ($target eq 'web') { - $currentstring = $token->[2]; - } - return $currentstring; - } -#------------------------------------------------------------------------ <select> tag - sub start_select { - my ($target,$token) = @_; - my $currentstring = ''; - if ($target eq 'web') { - $currentstring = $token->[4]; - } - return $currentstring; - } - sub end_select { - my ($target,$token) = @_; - my $currentstring = ''; - if ($target eq 'web') { - $currentstring = $token->[2]; - } - return $currentstring; - } -#------------------------------------------------------------------------ <option> tag - sub start_option { - my ($target,$token) = @_; - my $currentstring = ''; - if ($target eq 'web') { - $currentstring = $token->[4]; - } - return $currentstring; - } - sub end_option { - my ($target,$token) = @_; - my $currentstring = ''; - if ($target eq 'web') { - $currentstring = $token->[2]; - } - return $currentstring; - } -#------------------------------------------------------------------------- <input> tag - sub start_input { - my ($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 $currentstring; - } -#---------------------------------------------------------------------- <textarea> tag - sub start_textarea { - my ($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 $currentstring; - } -#-------------------------------------------------------------------------- <form> tag - sub start_form { - my ($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 $currentstring; - } -#------------------------------------------------------------------------- <title> tag - sub start_title { - my ($target,$token) = @_; - my $currentstring = ''; - if ($target eq 'web') { - $currentstring = $token->[4]; - } - return $currentstring; - } - sub end_title { - my ($target,$token) = @_; - my $currentstring = ''; - if ($target eq 'web') { - $currentstring = $token->[2]; - } - return $currentstring; - } -#-------------------------------------------------------------------------- <meta> tag - sub start_meta { - my ($target,$token) = @_; - my $currentstring = ''; - if ($target eq 'web') { - $currentstring = $token->[4]; - } - return $currentstring; - } - sub end_meta { - my ($target,$token) = @_; - my $currentstring = ''; - if ($target eq 'web') { - $currentstring = $token->[2]; - } - return $currentstring; - } -#-------------------------------------------------------------------------- <body> tag - sub start_body { - my ($target,$token) = @_; - my $currentstring = ''; - if ($target eq 'web') { - $currentstring = $token->[4]; - } elsif ($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 = " \\end{document}"; - } - return $currentstring; - } -#------------------------------------------------------------------------ <center> tag - sub start_center { - my ($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 $currentstring; - } -#----------------------------------------------------------------------------- <b> tag - sub start_b { - my ($target,$token) = @_; - my $currentstring = ''; - if ($target eq 'web') { - $currentstring = $token->[4]; - } elsif ($target eq 'tex') { - $currentstring = " {\\bf "; - } - return $currentstring; - } - sub end_b { - my ($target,$token) = @_; - my $currentstring = ''; - if ($target eq 'web') { - $currentstring = $token->[2]; - } elsif ($target eq 'tex') { - $currentstring = "}"; - } - return $currentstring; - } -#------------------------------------------------------------------------ <strong> tag - sub start_strong { - my ($target,$token) = @_; - my $currentstring = ''; - if ($target eq 'web') { - $currentstring = $token->[4]; - } elsif ($target eq 'tex') { - $currentstring = " {\\bf "; - } - return $currentstring; - } - sub end_strong { - my ($target,$token) = @_; - my $currentstring = ''; - if ($target eq 'web') { - - $currentstring = $token->[2]; - } elsif ($target eq 'tex') { - $currentstring = "}"; - } - return $currentstring; - } -#---------------------------------------------------------------------------- <h1> tag - sub start_h1 { - my ($target,$token) = @_; - my $currentstring = ''; - if ($target eq 'web') { - $currentstring .= $token->[4]; - } elsif ($target eq 'tex') { - $currentstring .= "\\chapter{ "; - } - return $currentstring; - } - sub end_h1 { - my ($target,$token) = @_; - my $currentstring = ''; - if ($target eq 'web') { - $currentstring .= $token->[2]; - } elsif ($target eq 'tex') { - $currentstring .= "}"; - } - return $currentstring; - } -#---------------------------------------------------------------------------- <h2> tag - sub start_h2 { - my ($target,$token) = @_; - my $currentstring = ''; - if ($target eq 'web') { - $currentstring .= $token->[4]; - } elsif ($target eq 'tex') { - $currentstring .= "\\section{ "; - } - return $currentstring; - } - sub end_h2 { - my ($target,$token) = @_; - my $currentstring = ''; - if ($target eq 'web') { - $currentstring .= $token->[2]; - } elsif ($target eq 'tex') { - $currentstring .= "}"; - } - return $currentstring; - } -#---------------------------------------------------------------------------- <h3> tag - sub start_h3 { - my ($target,$token) = @_; - my $currentstring = ''; - if ($target eq 'web') { - $currentstring .= $token->[4]; - } elsif ($target eq 'tex') { - $currentstring .= "\\subsection{ "; - } - return $currentstring; - } - sub end_h3 { - my ($target,$token) = @_; - my $currentstring = ''; - if ($target eq 'web') { - $currentstring .= $token->[2]; - } elsif ($target eq 'tex') { - $currentstring .= "}"; - } - return $currentstring; - } -#---------------------------------------------------------------------------- <h4> tag - sub start_h4 { - my ($target,$token) = @_; - my $currentstring = ''; - if ($target eq 'web') { - $currentstring .= $token->[4]; - } elsif ($target eq 'tex') { - $currentstring .= "\\subsubsection{ "; - } - return $currentstring; - } - sub end_h4 { - my ($target,$token) = @_; - my $currentstring = ''; - if ($target eq 'web') { - $currentstring .= $token->[2]; - } elsif ($target eq 'tex') { - $currentstring .= "}"; - } - return $currentstring; - } -#---------------------------------------------------------------------------- <h5> tag - sub start_h5 { - my ($target,$token) = @_; - my $currentstring = ''; - if ($target eq 'web') { - $currentstring .= $token->[4]; - } elsif ($target eq 'tex') { - $currentstring .= "\\paragraph{ "; - } - return $currentstring; - } - sub end_h5 { - my ($target,$token) = @_; - my $currentstring = ''; - if ($target eq 'web') { - $currentstring .= $token->[2]; - } elsif ($target eq 'tex') { - $currentstring .= "}"; - } - return $currentstring; - } -#---------------------------------------------------------------------------- <h6> tag - sub start_h6 { - my ($target,$token) = @_; - my $currentstring = ''; - if ($target eq 'web') { - $currentstring .= $token->[4]; - } elsif ($target eq 'tex') { - $currentstring .= "\\subparagraph{ "; - } - return $currentstring; - } - sub end_h6 { - my ($target,$token) = @_; - my $currentstring = ''; - if ($target eq 'web') { - $currentstring .= $token->[2]; - } elsif ($target eq 'tex') { - $currentstring .= "}"; - } - return $currentstring; - } -#-------------------------------------------------------------------------- <cite> tag - sub start_cite { - my ($target,$token) = @_; - my $currentstring = ''; - if ($target eq 'web') { - $currentstring .= $token->[4]; - } elsif ($target eq 'tex') { - $currentstring .= "{ \\it "; - } - return $currentstring; - } - sub end_cite { - my ($target,$token) = @_; - my $currentstring = ''; - if ($target eq 'web') { - $currentstring .= $token->[2]; - } elsif ($target eq 'tex') { - $currentstring .= "}"; - } - return $currentstring; - } -#----------------------------------------------------------------------------- <i> tag - sub start_i { - my ($target,$token) = @_; - my $currentstring = ''; - if ($target eq 'web') { - $currentstring .= $token->[4]; - } elsif ($target eq 'tex') { - $currentstring .= "{ \\it "; - } - return $currentstring; - } - sub end_i { - my ($target,$token) = @_; - my $currentstring = ''; - if ($target eq 'web') { - $currentstring .= $token->[2]; - } elsif ($target eq 'tex') { - $currentstring .= "}"; - } - return $currentstring; - } -#----------------------------------------------------------------------- <address> tag - sub start_address { - my ($target,$token) = @_; - my $currentstring = ''; - if ($target eq 'web') { - $currentstring .= $token->[4]; - } elsif ($target eq 'tex') { - $currentstring .= "{ \\it "; - } - return $currentstring; - } - sub end_address { - my ($target,$token) = @_; - my $currentstring = ''; - if ($target eq 'web') { - $currentstring .= $token->[2]; - } elsif ($target eq 'tex') { - $currentstring .= "}"; - } - return $currentstring; - } -#--------------------------------------------------------------------------- <dfn> tag - sub start_dfn { - my ($target,$token) = @_; - my $currentstring = ''; - if ($target eq 'web') { - $currentstring .= $token->[4]; - } elsif ($target eq 'tex') { - $currentstring .= "{ \\it "; - } - return $currentstring; - } - sub end_dfn { - my ($target,$token) = @_; - my $currentstring = ''; - if ($target eq 'web') { - $currentstring .= $token->[2]; - } elsif ($target eq 'tex') { - $currentstring .= "}"; - } - return $currentstring; - } -#---------------------------------------------------------------------------- <tt> tag - sub start_tt { - my ($target,$token) = @_; - my $currentstring = ''; - if ($target eq 'web') { - $currentstring .= $token->[4]; - } elsif ($target eq 'tex') { - $currentstring .= "{ \\tt "; - } - return $currentstring; - } - sub end_tt { - my ($target,$token) = @_; - my $currentstring = ''; - if ($target eq 'web') { - $currentstring .= $token->[2]; - } elsif ($target eq 'tex') { - $currentstring .= "}"; - } - return $currentstring; - } -#---------------------------------------------------------------------------- <kbd> tag - sub start_kbd { - my ($target,$token) = @_; - my $currentstring = ''; - if ($target eq 'web') { - $currentstring .= $token->[4]; - } elsif ($target eq 'tex') { - $currentstring .= "{ \\tt "; - } - return $currentstring; - } - sub end_kbd { - my ($target,$token) = @_; - my $currentstring = ''; - if ($target eq 'web') { - $currentstring .= $token->[2]; - } elsif ($target eq 'tex') { - $currentstring .= "}"; - } - return $currentstring; - } -#-------------------------------------------------------------------------- <code> tag - sub start_code { - my ($target,$token) = @_; - my $currentstring = ''; - if ($target eq 'web') { - $currentstring .= $token->[4]; - } elsif ($target eq 'tex') { - $currentstring .= "{ \\tt "; - } - return $currentstring; - } - sub end_code { - my ($target,$token) = @_; - my $currentstring = ''; - if ($target eq 'web') { - $currentstring .= $token->[2]; - } elsif ($target eq 'tex') { - $currentstring .= "}"; - } - return $currentstring; - } -#---------------------------------------------------------------------------- <em> tag - sub start_em { - my ($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 $currentstring; - } -#----------------------------------------------------------------------------- <q> tag - sub start_q { - my ($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 $currentstring; - } -#----------------------------------------------------------------------------- <p> tag - sub start_p { - my ($target,$token) = @_; - my $currentstring = ''; - if ($target eq 'web') { - $currentstring .= $token->[4]; - } elsif ($target eq 'tex') { - $currentstring .= "{\\par "; - } - return $currentstring; - } - sub end_p { - my ($target,$token) = @_; - my $currentstring = ''; - if ($target eq 'web') { - $currentstring .= $token->[2]; - } elsif ($target eq 'tex') { - $currentstring .= " }"; - } - return $currentstring; - } -#---------------------------------------------------------------------------- <br> tag - sub start_br { - my ($target,$token) = @_; - my $currentstring = ''; - if ($target eq 'web') { - $currentstring .= $token->[4]; - } elsif ($target eq 'tex') { - $currentstring .= "\\\\"; - } - return $currentstring; - } - sub end_br { - my ($target,$token) = @_; - my $currentstring = ''; - if ($target eq 'web') { - $currentstring .= $token->[2]; - } - return $currentstring; - } -#--------------------------------------------------------------------------- <big> tag - sub start_big { - my ($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 $currentstring; - } -#------------------------------------------------------------------------- <small> tag - sub start_small { - my ($target,$token) = @_; - my $currentstring = ''; - if ($target eq 'web') { - $currentstring .= $token->[4]; - } elsif ($target eq 'tex') { - $currentstring .= "{\\footnotesize "; - } - return $currentstring; +sub end_m { + my ($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); } - sub end_small { - my ($target,$token) = @_; - my $currentstring = ''; - if ($target eq 'web') { - $currentstring .= $token->[2]; - } elsif ($target eq 'tex') { - $currentstring .= " }"; + } + return $result; +} + +sub end_tthoption { + my ($target,$token) = @_; + my $result; + return $result; +} + +#-- <html> tag +sub start_html { + my ($target,$token) = @_; + my $currentstring = ''; + if ($ENV{'browser.mathml'}) { + &tth::ttminit(); + if ($ENV{'browser.unicode'}) { + &tth::ttmoptions('-L -u1'); + } else { + &tth::ttmoptions('-L -u0'); + } + } else { + &tth::tthinit(); + if ($ENV{'browser.unicode'}) { + &tth::tthoptions('-L -u1'); + } else { + &tth::tthoptions('-L -u0'); + } + } + if ($target eq 'web') { + $currentstring = &Apache::lonxml::xmlbegin(). + &Apache::lonxml::fontsettings(); + } elsif ($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 $currentstring; +} + +#-- <head> tag +sub start_head { + my ($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') { + $currentstring = &Apache::lonmenu::registerurl(undef,$target). + $token->[2]; + } + return $currentstring; +} + +#-- <map> tag +sub start_map { + my ($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 $currentstring; +} + +#-- <select> tag +sub start_select { + my ($target,$token) = @_; + my $currentstring = ''; + if ($target eq 'web') { + $currentstring = $token->[4]; + } + return $currentstring; +} + +sub end_select { + my ($target,$token) = @_; + my $currentstring = ''; + if ($target eq 'web') { + $currentstring = $token->[2]; + } + return $currentstring; +} + +#-- <option> tag +sub start_option { + my ($target,$token) = @_; + my $currentstring = ''; + if ($target eq 'web') { + $currentstring = $token->[4]; + } + return $currentstring; +} + +sub end_option { + my ($target,$token) = @_; + my $currentstring = ''; + if ($target eq 'web') { + $currentstring = $token->[2]; + } + return $currentstring; +} + +#-- <input> tag +sub start_input { + my ($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 $currentstring; +} + +#-- <textarea> tag +sub start_textarea { + my ($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 $currentstring; +} + +#-- <form> tag +sub start_form { + my ($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 $currentstring; +} + +#-- <title> tag +sub start_title { + my ($target,$token) = @_; + my $currentstring = ''; + if ($target eq 'web') { + $currentstring = $token->[4]; + } elsif ($target eq 'tex') { + $currentstring .= '\keephidden{' + } + if ($target eq 'meta') { + $currentstring='<title>'; + &start_output(); + } + 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(); + $currentstring='</title>'; + } + return $currentstring; +} + +#-- <meta> tag +sub start_meta { + my ($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>'; } - return $currentstring; - } -#---------------------------------------------------------------------- <basefont> tag - sub start_basefont { - my ($target,$token) = @_; - my $currentstring = ''; - if ($target eq 'web') { - $currentstring = $token->[4]; - } - return $currentstring; - } -#-------------------------------------------------------------------------- <font> tag - sub start_font { - my ($target,$token) = @_; - my $currentstring = ''; - if ($target eq 'web') { - $currentstring = $token->[4]; - } - return $currentstring; - } - sub end_font { - my ($target,$token) = @_; - my $currentstring = ''; - if ($target eq 'web') { - $currentstring = $token->[2]; - } - return $currentstring; - } -#------------------------------------------------------------------------ <strike> tag - sub start_strike { - my ($target,$token) = @_; - my $currentstring = ''; - if ($target eq 'web') { - $currentstring .= $token->[4]; - } elsif ($target eq 'tex') { - $currentstring .= "{\\underline "; - } - return $currentstring; } - sub end_strike { - my ($target,$token) = @_; - my $currentstring = ''; - if ($target eq 'web') { - $currentstring .= $token->[2]; - } elsif ($target eq 'tex') { - $currentstring .= " }"; - } - return $currentstring; + } 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(); } -#----------------------------------------------------------------------------- <s> tag - sub start_s { - my ($target,$token) = @_; - my $currentstring = ''; - if ($target eq 'web') { - $currentstring .= $token->[4]; - } elsif ($target eq 'tex') { - $currentstring .= "{\\underline "; - } - return $currentstring; + } + return $currentstring; +} + +sub end_meta { + my ($target,$token,$tagstack,$parstack,$parser) = @_; + my $currentstring = ''; + if ($target eq 'web') { + my $args=''; + if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; } + if ($args ne '') { + $currentstring = $token->[4]; + } + } elsif ($target eq 'tex') { + $currentstring=&Apache::lonxml::endredirection(); + $currentstring=''; + } + 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 = $token->[4]; } - sub end_s { - my ($target,$token) = @_; - my $currentstring = ''; - if ($target eq 'web') { - $currentstring .= $token->[2]; - } elsif ($target eq 'tex') { - $currentstring .= " }"; - } - return $currentstring; + } + return $currentstring; +} + +#-- <body> tag +sub start_body { + my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; + my $currentstring = ''; + if ($target eq 'web') { + if (!$Apache::lonxml::registered) { + $currentstring.='<head>'. + &Apache::lonmenu::registerurl(undef,$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;'; } -#--------------------------------------------------------------------------- <sub> tag - sub start_sub { - my ($target,$token) = @_; - my $currentstring = ''; - if ($target eq 'web') { - $currentstring .= $token->[4]; - } elsif ($target eq 'tex') { - $currentstring .= "\$_{ "; - } - return $currentstring; + if ($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]->{$key}); + } } - sub end_sub { - my ($target,$token) = @_; - my $currentstring = ''; - if ($target eq 'web') { - $currentstring .= $token->[2]; - } elsif ($target eq 'tex') { - $currentstring .= " }\$"; - } - return $currentstring; + $token->[2]->{'onload'}=&Apache::lonmenu::loadevents().';'.$onLoad; + my $onUnload=''; + foreach my $key (keys(%{$token->[2]})) { + if ($key =~ /^onunload$/i) { + $onUnload.=$token->[2]->{$key}.';'; + delete($token->[2]->{$key}); + } } -#--------------------------------------------------------------------------- <sup> tag - sub start_sup { - my ($target,$token) = @_; - my $currentstring = ''; - if ($target eq 'web') { - $currentstring .= $token->[4]; - } elsif ($target eq 'tex') { - $currentstring .= "\$^{ "; - } - return $currentstring; + $token->[2]->{'onunload'}=&Apache::lonmenu::unloadevents(). + ';'.$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 = '\end{document}'; + } + return $currentstring; +} + +#-- <center> tag +sub start_center { + my ($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 $currentstring; +} + +#-- <b> tag +sub start_b { + my ($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 $currentstring; +} + +#-- <strong> tag +sub start_strong { + my ($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 $currentstring; +} + +#-- <h1> tag +sub start_h1 { + my ($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(); + } + 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(); + $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 $currentstring; +} + +#--- <cite> tag +sub start_cite { + my ($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 $currentstring; +} + +#-- <i> tag +sub start_i { + my ($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 $currentstring; +} + +#-- <address> tag +sub start_address { + my ($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 $currentstring; +} + +#-- <dfn> tag +sub start_dfn { + my ($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 $currentstring; +} + +#-- <tt> tag +sub start_tt { + my ($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 $currentstring; +} + +#-- <kbd> tag +sub start_kbd { + my ($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 $currentstring; +} + +#-- <code> tag +sub start_code { + my ($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 $currentstring; +} + +#-- <em> tag +sub start_em { + my ($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 $currentstring; +} + +#-- <q> tag +sub start_q { + my ($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 $currentstring; +} + +#-- <p> tag +sub start_p { + my ($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 $currentstring; +} + +#-- <br> tag +sub start_br { + my ($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') { + $currentstring .= '\vskip 0.2 mm '; } - sub end_sup { - my ($target,$token) = @_; - my $currentstring = ''; - if ($target eq 'web') { - $currentstring .= $token->[2]; - } elsif ($target eq 'tex') { - $currentstring .= " }\$"; - } - return $currentstring; + } + return $currentstring; +} + +sub end_br { + my ($target,$token) = @_; + my $currentstring = ''; + if ($target eq 'web') { + $currentstring .= $token->[2]; + } + return $currentstring; +} + +#-- <big> tag +sub start_big { + my ($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 $currentstring; +} + +#-- <small> tag +sub start_small { + my ($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 $currentstring; +} + +#-- <basefont> tag +sub start_basefont { + my ($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.' '; } -#---------------------------------------------------------------------------- <hr> tag - sub start_hr { - my ($target,$token) = @_; - my $currentstring = ''; - if ($target eq 'web') { - $currentstring .= $token->[4]; - } elsif ($target eq 'tex') { - $currentstring .= "\\hline "; - } - return $currentstring; + } + 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) { + $currentstring = '}'; } -#----------------------------------------------------------------------------- <a> tag - sub start_a { - my ($target,$token) = @_; - my $currentstring = ''; - if ($target eq 'web') { - $currentstring .= $token->[4]; - } elsif ($target eq 'tex') { - } - return $currentstring; - } - sub end_a { - my ($target,$token,$stackref) = @_; - my $currentstring = ''; - if ($target eq 'web') { - $currentstring .= $token->[2]; - } elsif ($target eq 'tex') { - my $tempor_var = $stackref->[$#$stackref]; - if (index($tempor_var,'name') != -1 ) { - $tempor_var =~ s/name=([^,]*),/$1/g; - $currentstring .= " \\label{$tempor_var}"; - } elsif (index($tempor_var,'href') != -1 ) { - $tempor_var =~ s/href=([^,]*),/$1/g; - $currentstring .= " \\ref{$tempor_var}"; - } - } - return $currentstring; + } + return $currentstring; +} + +#-- <font> tag +sub start_font { + my ($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.' '; } -#---------------------------------------------------------------------------- <li> tag - sub start_li { - my ($target,$token,$stackref) = @_; - my $currentstring = ''; - if ($target eq 'web') { - $currentstring = $token->[4]; - } elsif ($target eq 'tex') { - my $tempor_var = $stackref->[$#$stackref-1]; - if (index($tempor_var,'circle') != -1 ) { - $currentstring .= " \\item[o] "; - } elsif (index($tempor_var,'square') != -1 ) { - $currentstring .= " \\item[$\Box$] "; - } else { - $currentstring .= " \\item "; - } - } - return $currentstring; + } + 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) { + $currentstring = '}'; } - sub end_li { - my ($target,$token) = @_; - my $currentstring = ''; - if ($target eq 'web') { - $currentstring = $token->[2]; - } - return $currentstring; + } + return $currentstring; +} + +#-- <strike> tag +sub start_strike { + my ($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 $currentstring; +} + +#-- <s> tag +sub start_s { + my ($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 $currentstring; +} + +#-- <sub> tag +sub start_sub { + my ($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 $currentstring; +} + +#-- <sup> tag +sub start_sup { + my ($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 $currentstring; +} + +#-- <hr> tag +sub start_hr { + my ($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 { + $LaTeXwidth ='0.9\textwidth'; } -#----------------------------------------------------------------------------- <u> tag - sub start_u { - my ($target,$token) = @_; - my $currentstring = ''; - if ($target eq 'web') { - $currentstring .= $token->[4]; - } elsif ($target eq 'tex') { - $currentstring .= "{\\underline "; - } - return $currentstring; + my ($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 $currentstring; +} + +#-- <div> tag +sub start_div { + my ($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 $currentstring; +} + +#-- <a> tag +sub start_a { + my ($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 { + $currentstring.=''; } - sub end_u { - my ($target,$token) = @_; - my $currentstring = ''; - if ($target eq 'web') { - $currentstring .= $token->[2]; - } elsif ($target eq 'tex') { - $currentstring .= " }"; - } - return $currentstring; + } + return $currentstring; +} + +sub end_a { + my ($target,$token,$tagstack,$parstack,$safeeval) = @_; + my $currentstring = ''; + if ($target eq 'web') { + $currentstring .= $token->[2]; + } + return $currentstring; +} + +#-- <li> tag +sub start_li { + my ($target,$token,$tagstack,$parstack,$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 $currentstring; +} + +#-- <u> tag +sub start_u { + my ($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 $currentstring; +} + +#-- <ul> tag +sub start_ul { + my ($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 $currentstring; +} + +#-- <menu> tag +sub start_menu { + my ($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 $currentstring; +} + +#-- <dir> tag +sub start_dir { + my ($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 $currentstring; +} + +#-- <ol> tag +sub start_ol { + my ($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 $currentstring; +} + +#-- <dl> tag +sub start_dl { + my ($target,$token) = @_; + my $currentstring = ''; + if ($target eq 'web') { + $currentstring = $token->[4]; + } elsif ($target eq 'tex') { + $currentstring = '\begin{description}'; + } + return $currentstring; +} + +sub end_dl { + my ($target,$token) = @_; + my $currentstring = ''; + if ($target eq 'web') { + $currentstring = $token->[2]; + } elsif ($target eq 'tex') { + $currentstring = '\end{description}'; + } + return $currentstring; +} + +#-- <dt> tag +sub start_dt { + my ($target,$token) = @_; + my $currentstring = ''; + if ($target eq 'web') { + $currentstring = $token->[4]; + } elsif ($target eq 'tex') { + $currentstring = '\item['; + } + return $currentstring; +} + +sub end_dt { + my ($target,$token) = @_; + my $currentstring = ''; + if ($target eq 'web') { + $currentstring = $token->[2]; + } elsif ($target eq 'tex') { + $currentstring = ']'; + } + return $currentstring; +} + +#-- <dd> tag +sub start_dd { + my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; + my $currentstring = ''; + if ($target eq 'web') { + $currentstring = $token->[4]; + } elsif ($target eq 'tex') { + if ($$tagstack[-2] eq 'dl') { + $currentstring = ' \item [] '; + } elsif ($$tagstack[-2] eq 'dt') { + $currentstring = ']'; } -#---------------------------------------------------------------------------- <ul> tag - sub start_ul { - my ($target,$token) = @_; - my $currentstring = ''; - if ($target eq 'web') { - $currentstring = $token->[4]; - } elsif ($target eq 'tex') { - $currentstring = " \\begin{itemize} "; - } - return $currentstring; + } + return $currentstring; +} + +sub end_dd { + my ($target,$token) = @_; + my $currentstring = ''; + if ($target eq 'web') { + $currentstring = $token->[2]; + } + return $currentstring; +} + +#-- <table> tag +sub start_table { + my ($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];} + } } - sub end_ul { - my ($target,$token) = @_; - my $currentstring = ''; - if ($target eq 'web') { - $currentstring = $token->[2]; - } elsif ($target eq 'tex') { - $currentstring = " \\end{itemize}"; - } - return $currentstring; + #continues trying estimate the width of raw data + my @length_raw_row = split(/,/,$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];} + } } -#-------------------------------------------------------------------------- <menu> tag - sub start_menu { - my ($target,$token) = @_; - my $currentstring = ''; - if ($target eq 'web') { - $currentstring = $token->[4]; - } elsif ($target eq 'tex') { - $currentstring = " \\begin{itemize} "; - } - return $currentstring; + #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]; + $needed++; + } } - sub end_menu { - my ($target,$token) = @_; - my $currentstring = ''; - if ($target eq 'web') { - $currentstring = $token->[2]; - } elsif ($target eq 'tex') { - $currentstring = " \\end{itemize}"; - } - return $currentstring; + $needed=$#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/3) { + $length_row_final[$jn]=$length_raw_row[$jn]; + $available_length=$available_length-$length_raw_row[$jn]; + $needed--; + } + } } -#--------------------------------------------------------------------------- <dir> tag - sub start_dir { - my ($target,$token) = @_; - my $currentstring = ''; - if ($target eq 'web') { - $currentstring = $token->[4]; - } elsif ($target eq 'tex') { - $currentstring = " \\begin{itemize} "; - } - return $currentstring; + for (my $jn=0;$jn<=$#length_row_final;$jn++) { + if ($length_row_final[$jn]==0) { + $length_row_final[$jn]=0.9*$available_length/$needed; + } } - sub end_dir { - my ($target,$token) = @_; - my $currentstring = ''; - if ($target eq 'web') { - $currentstring = $token->[2]; - } elsif ($target eq 'tex') { - $currentstring = " \\end{itemize}"; - } - return $currentstring; + #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 .= $Apache::londefdef::table[-1]{'output'}; + pop @Apache::londefdef::table; + undef @Apache::londefdef::table; } -#---------------------------------------------------------------------------- <ol> tag - sub start_ol { - my ($target,$token) = @_; - my $currentstring = ''; - if ($target eq 'web') { - $currentstring = $token->[4]; - } elsif ($target eq 'tex') { - $currentstring = " \\begin{enumerate} "; - } - return $currentstring; + } + return $currentstring; +} + +#-- <tr> tag +sub start_tr { + my ($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 $currentstring; +} + +#-- <td> tag +sub start_td { + my ($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; } - sub end_ol { - my ($target,$token) = @_; - my $currentstring = ''; - if ($target eq 'web') { - $currentstring = $token->[2]; - } elsif ($target eq 'tex') { - $currentstring = " \\end{enumerate}"; - } - return $currentstring; + } + return ''; +} + +sub start_td_tex { + my ($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/; + 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'}[$in]/; } -#---------------------------------------------------------------------------- <dl> tag - sub start_dl { - my ($target,$token) = @_; - my $currentstring = ''; - if ($target eq 'web') { - $currentstring = $token->[4]; - } elsif ($target eq 'tex') { - $currentstring = " \\begin{description} "; - } - return $currentstring; + @{ $Apache::londefdef::table[-1]{'rowdata'} }[$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 $currentstring; +} + +#-- <th> tag +sub start_th { + my ($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 $currentstring; +} +#-- <img> tag +sub start_img { + my ($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 = ''; + 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.']'; } - sub end_dl { - my ($target,$token) = @_; - my $currentstring = ''; - if ($target eq 'web') { - $currentstring = $token->[2]; - } elsif ($target eq 'tex') { - $currentstring = " \\end{description}"; - } - return $currentstring; + } elsif ($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"; + $currentstring .= '\vskip 1 mm \graphicspath{{/home/httpd/prtspool/}}\includegraphics[width='.$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 + } } -#---------------------------------------------------------------------------- <dt> tag - sub start_dt { - my ($target,$token) = @_; - my $currentstring = ''; - if ($target eq 'web') { - $currentstring = $token->[4]; - } elsif ($target eq 'tex') { - $currentstring = "\\item[ "; - } - return $currentstring; + } + return $currentstring; +} + +sub end_img { + my ($target,$token) = @_; + my $currentstring = ''; + if ($target eq 'web') { + $currentstring = $token->[2]; + } elsif ($target eq 'tex') { + $currentstring = ''; + } + return $currentstring; +} + +#-- <applet> tag +sub start_applet { + my ($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.']'; } - sub end_dt { - my ($target,$token) = @_; - my $currentstring = ''; - if ($target eq 'web') { - $currentstring = $token->[2]; - } elsif ($target eq 'tex') { - $currentstring = "]"; - } - return $currentstring; + } elsif ($target eq 'tex') { + $currentstring = " \\begin{figure} "; + } + return $currentstring; +} + +sub end_applet { + my ($target,$token) = @_; + my $currentstring = ''; + if ($target eq 'web') { + $currentstring = $token->[2]; + } elsif ($target eq 'tex') { + $currentstring = " \\end{figure}"; + } + return $currentstring; +} + +#-- <embed> tag +sub start_embed { + my ($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.']'; } -#---------------------------------------------------------------------------- <dd> tag - sub start_dd { - my ($target,$token) = @_; - my $currentstring = ''; - if ($target eq 'web') { - $currentstring = $token->[4]; - } - return $currentstring; + } elsif ($target eq 'tex') { + $currentstring = " \\begin{figure} "; + } + return $currentstring; +} + +sub end_embed { + my ($target,$token) = @_; + my $currentstring = ''; + if ($target eq 'web') { + $currentstring = $token->[2]; + } elsif ($target eq 'tex') { + $currentstring = " \\end{figure}"; + } + return $currentstring; +} + +#-- <param> tag +sub start_param { + my ($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') { + $currentstring = " \\begin{figure} "; + } + return $currentstring; +} + +sub end_param { + my ($target,$token) = @_; + my $currentstring = ''; + if ($target eq 'web') { + $currentstring = $token->[2]; + } elsif ($target eq 'tex') { + $currentstring = " \\end{figure}"; + } + 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 ( $target eq 'edit') { return (&Apache::edit::end_table()); } + return ''; +} + +#-- Frames +sub start_frameset { + my ($target,$token) = @_; + my $currentstring = ''; + if ($target eq 'web') { + if (!$Apache::lonxml::registered) { + $currentstring.='<head>'. + &Apache::lonmenu::registerurl(undef,$target).'</head>'; + } + my $onLoad=''; + foreach my $key (keys(%{$token->[2]})) { + if ($key =~ /^onload$/i) { + $onLoad.=$token->[2]->{$key}.';'; + delete($token->[2]->{$key}); + } } - sub end_dd { - my ($target,$token) = @_; - my $currentstring = ''; - if ($target eq 'web') { - $currentstring = $token->[2]; - } - return $currentstring; - } -#------------------------------------------------------------------------- <table> tag - sub start_table { - my ($target,$token) = @_; - my $currentstring = ''; - if ($target eq 'web') { - $currentstring = $token->[4]; - } elsif ($target eq 'tex') { - $currentstring = " \\begin{tabular} "; - } - return $currentstring; + $token->[2]->{'onload'}=&Apache::lonmenu::loadevents().';'.$onLoad; + my $onUnload=''; + foreach my $key (keys(%{$token->[2]})) { + if ($key =~ /^onunload$/i) { + $onUnload.=$token->[2]->{$key}.';'; + delete($token->[2]->{$key}); + } } - sub end_table { - my ($target,$token) = @_; - my $currentstring = ''; - if ($target eq 'web') { - $currentstring = $token->[2]; - } elsif ($target eq 'tex') { - $currentstring = " \\end{tabular}"; - } - return $currentstring; + $token->[2]->{'onunload'}=&Apache::lonmenu::unloadevents(). + ';'.$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 $currentstring; +} + +#-- <xmp> +sub start_xmp { + my ($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 $currentstring; +} + + +#-- <pre> +sub start_pre { + my ($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 $currentstring; +} + +#-- <abbr> tag +sub start_abbr { + my ($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 $currentstring; +} + +#-- <acronym> tag +sub start_acronym { + my ($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 $currentstring; +} + +#-- <area> tag +sub start_area { + my ($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 $currentstring; +} + +#-- <base> tag +sub start_base { + my ($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 $currentstring; +} + +#-- <bdo> tag +sub start_bdo { + my ($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 $currentstring; +} + +#-- <bgsound> tag +sub start_bgsound { + my ($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 $currentstring; +} + +#-- <blink> tag +sub start_blink { + my ($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 $currentstring; +} + +#-- <blockquote> tag +sub start_blockquote { + my ($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 $currentstring; +} + +#-- <button> tag +sub start_button { + my ($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 $currentstring; +} + +#-- <caption> tag +sub start_caption { + my ($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 $currentstring; +} + +#-- <col> tag +sub start_col { + my ($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 $currentstring; +} + +#-- <colgroup> tag +sub start_colgroup { + my ($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 $currentstring; +} + +#-- <del> tag +sub start_del { + my ($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 $currentstring; +} + +#-- <fieldset> tag +sub start_fieldset { + my ($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 $currentstring; +} + +#-- <frame> tag +sub start_frame { + my ($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 $currentstring; +} + +#-- <iframe> tag +sub start_iframe { + my ($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 $currentstring; +} + +#-- <ins> tag +sub start_ins { + my ($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 $currentstring; +} + +#-- <isindex> tag +sub start_isindex { + my ($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 $currentstring; +} + +#-- <keygen> tag +sub start_keygen { + my ($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 $currentstring; +} + +#-- <layer> tag +sub start_layer { + my ($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 $currentstring; +} + +#-- <legend> tag +sub start_legend { + my ($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 $currentstring; +} + +#-- <link> tag +sub start_link { + my ($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 $currentstring; +} + +#-- <marquee> tag +sub start_marquee { + my ($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 $currentstring; +} + +#-- <malticol> tag +sub start_malticol { + my ($target,$token) = @_; + my $currentstring = ''; + if ($target eq 'web') { + $currentstring = $token->[4]; + } + return $currentstring; +} + +sub end_malticol { + my ($target,$token) = @_; + my $currentstring = ''; + if ($target eq 'web') { + $currentstring = $token->[2]; + } + return $currentstring; +} + +#-- <nobr> tag +sub start_nobr { + my ($target,$token) = @_; + my $currentstring = ''; + if ($target eq 'web') { + $currentstring = $token->[4]; + } + return $currentstring; +} + +sub end_nobr { + my ($target,$token) = @_; + my $currentstring = ''; + if ($target eq 'web') { + $currentstring = $token->[2]; + } + return $currentstring; +} + +#-- <noembed> tag +sub start_noembed { + my ($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 $currentstring; +} + +#-- <noframes> tag +sub start_noframes { + my ($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 $currentstring; +} + +#-- <nolayer> tag +sub start_nolayer { + my ($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 $currentstring; +} + +#-- <noscript> tag +sub start_noscript { + my ($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 $currentstring; +} + +#-- <object> tag +sub start_object { + my ($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 $currentstring; +} + +#-- <optgroup> tag +sub start_optgroup { + my ($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 $currentstring; +} + +#-- <samp> tag +sub start_samp { + my ($target,$token) = @_; + my $currentstring = ''; + if ($target eq 'web') { + $currentstring = $token->[4]; + } + return $currentstring; +} + +sub end_samp { + my ($target,$token) = @_; + my $currentstring = ''; + if ($target eq 'web') { + $currentstring = $token->[2]; + } + 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 $currentstring; +} + +#-- <spacer> tag +sub start_spacer { + my ($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 $currentstring; +} + +#-- <span> tag +sub start_span { + my ($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 $currentstring; +} + +#-- <tbody> tag +sub start_tbody { + my ($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 $currentstring; +} + +#-- <tfoot> tag +sub start_tfoot { + my ($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 $currentstring; +} + +#-- <thead> tag +sub start_thead { + my ($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]; + } + return $currentstring; +} + +sub end_var { + my ($target,$token) = @_; + my $currentstring = ''; + if ($target eq 'web') { + $currentstring = $token->[2]; + } + return $currentstring; +} + +#-- <wbr> tag +sub start_wbr { + my ($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 $src) { + #replicates image itself + &Apache::lonnet::repcopy($src); + #replicates eps or ps + my $newsrc = $src; + $newsrc =~ s/\.(gif|jpg|jpeg|png)$/.eps/i; + if (not -e $newsrc) { + if (&Apache::lonnet::repcopy($newsrc) ne 'OK') { + $newsrc =~ s/\.eps$/\.ps/; + &Apache::lonnet::repcopy($newsrc); + } } + } + 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'; +} 1; __END__