--- loncom/xml/londefdef.pm 2003/04/11 18:25:03 1.125 +++ loncom/xml/londefdef.pm 2009/06/02 13:10:29 1.410 @@ -1,7 +1,7 @@ # The LearningOnline Network with CAPA # Tags Default Definition Module # -# $Id: londefdef.pm,v 1.125 2003/04/11 18:25:03 sakharuk Exp $ +# $Id: londefdef.pm,v 1.410 2009/06/02 13:10:29 bisitz Exp $ # # # Copyright Michigan State University Board of Trustees @@ -25,8 +25,7 @@ # /home/httpd/html/adm/gpl.txt # # http://www.lon-capa.org/ -# -# Copyright for TtHfunc and TtMfunc by Ian Hutchinson. +## Copyright for TtHfunc and TtMfunc by Ian Hutchinson. # TtHfunc and TtMfunc (the "Code") may be compiled and linked into # binary executable programs or libraries distributed by the # Michigan State University (the "Licensee"), but any binaries so @@ -37,25 +36,41 @@ # 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 Apache::lonnet; use strict; use Apache::lonxml; +use Apache::lontable; use Apache::File(); use Image::Magick; use Apache::lonmenu(); use Apache::lonmeta(); +use Apache::lonlocal; +use Apache::Constants qw(:common); +use File::Basename; +use LONCAPA(); +# use Data::Dumper; 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')); + &Apache::lonxml::register('Apache::londefdef',('a','abbr','acronym','accessrule','address','allow','applet','area','b','base','basefont','bgo','bgsound','big','blink','blockquote','blankspace','body','br','button','caption','center','cite','code','col','colgroup','dd','del','dfn','dir','div','dl','dt','em','embed','externallink','fieldset','font','form','frame','frameset','h1','h2','h3','h4','h5','h6','head','hr','html','i','iframe','img','input','ins','insert','isindex','kbd','keygen','label','layer','legend','li','link','m','map','marquee','menu','meta','multicol','nobr','noembed','noframes','nolayer','noscript','object','ol','optgroup','option','output','p','param','pre','q','s','samp','select','server','small','spacer','span','strike','strong','sub','sup','table','tbody','td','textarea','tfoot','th','thead','title','tr','tt','tthoption','u','ul','var','wbr','hideweboutput')); + +} + +sub initialize_londefdef { + $Apache::londefdef::TD_redirection=0; + @Apache::londefdef::table = (); + $Apache::londefdef::select=0; + undef(@Apache::londefdef::description); + @Apache::londefdef::DD=(0); + @Apache::londefdef::DT=(0); + @Apache::londefdef::seenDT=(0); + $Apache::londefdef::list_index=0; + undef($Apache::londefdef::head); + undef($Apache::londefdef::title); } #======================= TAG SUBROUTINES ===================== @@ -72,30 +87,53 @@ sub end_output { } #-- <m> tag sub start_m { - my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; + my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_; 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; + my $inside = &Apache::lonxml::get_all_text_unbalanced("/m",$parser); + if ($target eq 'web' || $target eq 'analyze') { &Apache::lonxml::debug("M is starting with:$inside:"); my $eval=&Apache::lonxml::get_param('eval',$parstack,$safeeval); if ($eval eq 'on') { $inside=&Apache::run::evaluate($inside,$safeeval,$$parstack[-1]); - #&Apache::lonxml::debug("M is evaulated to:$inside:"); + #&Apache::lonxml::debug("M is evaluated to:$inside:"); } - $currentstring = &Apache::lontexconvert::converted(\$inside); + my $tex = $inside; + my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval); + $currentstring = &Apache::lontexconvert::converted(\$inside,$display); if ($Apache::lontexconvert::errorstring) { - &Apache::lonxml::warning("tth error: ". - $Apache::lontexconvert::errorstring); + my $errormsg='<pre>'.&HTML::Entities::encode($Apache::lontexconvert::errorstring,'<>&"').'</pre> occurred while attempting to convert this TeX: <pre>'; + $tex = &HTML::Entities::encode($tex,'<>&"'); + my ($linenumber) = + ($Apache::lontexconvert::errorstring =~ /Line (\d+)/); + if (defined($linenumber)) { + my @tex=split("\n",$tex); + $tex[$linenumber]='<b><font color="red">'. + $tex[$linenumber].'</font></b>'; + $tex=join("\n",@tex); + } + &Apache::lonxml::warning($errormsg.$tex.'</pre>'); $Apache::lontexconvert::errorstring=''; } #&Apache::lonxml::debug("M is ends with:$currentstring:"); + $Apache::lonxml::post_evaluate=0; } elsif ($target eq 'tex') { - $currentstring = &Apache::lonxml::get_all_text_unbalanced("/m",$parser); + + $currentstring = $inside; + my $eval=&Apache::lonxml::get_param('eval',$parstack,$safeeval); + if ($eval eq 'on') { + $currentstring=&Apache::run::evaluate($currentstring,$safeeval,$$parstack[-1]); + } if ($currentstring=~/^(\s*\\\\\s*)*$/) {$currentstring = ' \vskip 0 mm ';} - } else { - my $inside = &Apache::lonxml::get_all_text_unbalanced("/m",$parser); + # detect simple math mode entry exits, and convert them + # to use \ensuremath ... unless there's a \verb inside. + if (! ($currentstring=~/\\verb/)) { + if ($currentstring=~/^\s*\$[^\$].*\$\s*$/) { + $currentstring=~s/^(\s*)\$/$1/; + $currentstring=~s/\$(\s*)$/$1/; + $currentstring='\ensuremath{'.$currentstring.'}'; + } + } + $Apache::lonxml::post_evaluate=0; } return $currentstring; } @@ -103,22 +141,20 @@ sub start_m { sub end_m { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { - $Apache::lonxml::prevent_entity_encode--; - } elsif ($target eq 'tex') { + if ($target eq 'tex') { $currentstring = ""; - } elsif ($target eq 'meta') { } return $currentstring; } sub start_tthoption { - my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; + my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_; my $result; - if ($target eq 'web') { - my $inside = &Apache::lonxml::get_all_text("/tthoption",$parser); + if ($target eq 'web' || $target eq 'webgrade') { + my $inside = &Apache::lonxml::get_all_text("/tthoption",$parser, + $style); $inside=~s/^\s*//; - if ($ENV{'browser.mathml'}) { + if ($env{'browser.mathml'}) { &tth::ttmoptions($inside); } else { &tth::tthoptions($inside); @@ -133,56 +169,34 @@ sub end_tthoption { return $result; } -#-- <html> tag +#-- <html> tag (end tag optional) sub start_html { my ($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') { - $currentstring = &Apache::lonxml::xmlbegin(). - &Apache::lonxml::fontsettings(); + if ($target eq 'web' || $target eq 'edit' || $target eq 'webgrade' ) { + # start_body() takes care of emitting the <html> } elsif ($target eq 'tex') { - @Apache::londefdef::table = (); - $currentstring .= '\documentclass[letterpaper]{article} - \newcommand{\keephidden}[1]{} - \renewcommand{\deg}{$^{\circ}$} - \usepackage{textcomp} - \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}}'; + + $currentstring .= &latex_header(); } return $currentstring; } sub end_html { - my ($target,$token) = @_; + my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; my $currentstring = ''; - if ($target eq 'web') { - $currentstring = &Apache::lonxml::xmlend(); + if ($target eq 'web' || $target eq 'webgrade') { + # end_body takes care of the </html> } return $currentstring; } -#-- <head> tag +#-- <head> tag (end tag optional) sub start_head { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { - $currentstring = $token->[4]; + if ($target eq 'web' || $target eq 'webgrade') { + &Apache::lonxml::startredirection(); } return $currentstring; } @@ -190,18 +204,21 @@ sub start_head { sub end_head { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { - $currentstring = &Apache::lonmenu::registerurl(undef,$target). - $token->[2]; + if (($target eq 'web' && $env{'request.state'} eq 'published') || + ($target eq 'webgrade' && $env{'request.state'} eq 'published')) { + # in case there is a </head> but no <head> + if ($Apache::lonxml::redirection) { + $Apache::londefdef::head = &Apache::lonxml::endredirection(); + } } return $currentstring; } -#-- <map> tag +#-- <map> tag (end tag required) sub start_map { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[4]; } return $currentstring; @@ -210,55 +227,66 @@ sub start_map { sub end_map { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[2]; } return $currentstring; } -#-- <select> tag +#-- <select> tag (end tag required) sub start_select { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[4]; - } + } elsif ($target eq 'tex') { + $Apache::londefdef::select=0; + } return $currentstring; } sub end_select { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[2]; } return $currentstring; } -#-- <option> tag +#-- <option> tag (end tag optional) sub start_option { - my ($target,$token) = @_; + my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[4]; - } + } elsif ($target eq 'tex') { + $Apache::londefdef::select++; + if ($Apache::londefdef::select == 1) { + $currentstring='\noindent\fbox{'.&Apache::lonxml::get_param('value',$parstack,$safeeval).'}\keephidden{'; + } else { + $currentstring='\keephidden{'; + } + } return $currentstring; } sub end_option { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[2]; - } + } elsif ($target eq 'tex') { + $currentstring='}'; + } return $currentstring; } -#-- <input> tag +#-- <input> tag (end tag forbidden) sub start_input { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[4]; } return $currentstring; @@ -267,17 +295,17 @@ sub start_input { sub end_input { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[2]; } return $currentstring; } -#-- <textarea> tag +#-- <textarea> tag (end tag required) sub start_textarea { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[4]; } return $currentstring; @@ -286,17 +314,17 @@ sub start_textarea { sub end_textarea { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[2]; } return $currentstring; } -#-- <form> tag +#-- <form> tag (end tag required) sub start_form { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[4]; } return $currentstring; @@ -305,24 +333,25 @@ sub start_form { sub end_form { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[2]; } return $currentstring; } -#-- <title> tag +#-- <title> tag (end tag required) sub start_title { - my ($target,$token) = @_; + my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_; my $currentstring = ''; - if ($target eq 'web') { - $currentstring = $token->[4]; + if ($target eq 'web' || $target eq 'webgrade') { + $Apache::londefdef::title = + &Apache::lonxml::get_all_text('/title',$parser,$style); } elsif ($target eq 'tex') { - $currentstring .= '\keephidden{' + $currentstring .= '\keephidden{Title of the document: ' } if ($target eq 'meta') { $currentstring='<title>'; - &start_output(); + &start_output($target); } return $currentstring; } @@ -330,32 +359,31 @@ sub start_title { sub end_title { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { - $currentstring = $token->[2]; + if ($target eq 'web' || $target eq 'webgrade') { + # start_title takes care of swallowing the title } elsif ($target eq 'tex') { $currentstring .= '}'; } if ($target eq 'meta') { - &end_output(); + &end_output($target); $currentstring='</title>'; } return $currentstring; } -#-- <meta> tag +#-- <meta> tag (end tag forbidden) sub start_meta { - my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; + my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { my $args=''; if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; } if ($args eq '') { - &Apache::lonxml::get_all_text("/meta",$parser); + &Apache::lonxml::get_all_text("/meta",$parser,$style); } else { $currentstring = $token->[4]; } - } - if ($target eq 'meta') { + } elsif ($target eq 'meta') { unless (&Apache::lonxml::get_param ('http-equiv',$parstack,$safeeval,undef,1)) { my $name=$token->[2]->{'name'}; @@ -363,57 +391,108 @@ sub start_meta { $name=~s/\s/\_/gs; $name=~s/\W//gs; if ($name) { - $currentstring='<'.$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.'>'; + '</'.$name.'>'; } - } + my $display=&Apache::lonxml::get_param + ('display',$parstack,$safeeval,undef,1); + if ($display) { + $display=&HTML::Entities::encode($display,'<>&"'); + $currentstring.='<'.$name.'.display>'.$display. + '</'.$name.'.display>'; + } + } + } elsif ($target eq 'tex') { + my $content=&Apache::lonxml::get_param('content',$parstack,$safeeval); + my $name=&Apache::lonxml::get_param('name',$parstack,$safeeval); + if ((not defined $content) && (not defined $name)) { + &Apache::lonxml::startredirection(); + } + } elsif ($target eq 'edit') { + $currentstring .= &Apache::edit::tag_start($target,$token); + $currentstring .= &Apache::edit::text_arg('Name:','name',$token,30); + $currentstring .= &Apache::edit::text_arg('Content:','content',$token,70); + $currentstring .= &Apache::edit::end_row(); + } elsif ($target eq 'modified') { + my $constructtag = + &Apache::edit::get_new_args($token,$parstack,$safeeval, + 'name','content'); + if ($constructtag) { $currentstring = &Apache::edit::rebuild_tag($token); } } return $currentstring; } sub end_meta { - my ($target,$token,$tagstack,$parstack,$parser) = @_; + my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { my $args=''; if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; } if ($args ne '') { $currentstring = $token->[4]; } - } + } elsif ($target eq 'tex') { + my $content=&Apache::lonxml::get_param('content',$parstack,$safeeval); + my $name=&Apache::lonxml::get_param('name',$parstack,$safeeval); + if ((not defined $content) && (not defined $name)) { + &Apache::lonxml::endredirection(); + } + } return $currentstring; } +sub insert_meta { + return ' + <meta />'; +} + # accessrule sub start_accessrule { - my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; + my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_; 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; + 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); + my $type =&Apache::lonxml::get_param('type', $parstack,$safeeval,undef,1); + + my ($dom,$crs,$sec,$separator); + if ($type eq 'user') { + ($dom,$crs,$sec)=split(m{/},$realm); + $crs = &LONCAPA::clean_username($crs); + $separator = '/'; + } else { + ($dom,$crs,$sec)=split(/\_/,$realm); + $crs = &LONCAPA::clean_courseid($crs); + $separator = '_'; + } + $dom = &LONCAPA::clean_domain($dom); + + $sec =~s/\W//; + $realm = $dom; + if ($crs =~ /\S/) { $realm .= $separator.$crs; } + if ($sec =~ /\S/) { $realm .= $separator.$sec; } + $role=~s/\W//g; + if ($target eq 'web') { my $args=''; if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; } if ($args eq '') { - &Apache::lonxml::get_all_text("/accessrule",$parser); + &Apache::lonxml::get_all_text("/accessrule",$parser,$style); } else { $currentstring = $token->[4]; } } if ($target eq 'meta') { - $currentstring='<rule>'.$eff.':'.$realm.':'.$role.'</rule>'; + $currentstring='<rule>'.$eff.':'.$realm.':'.$role.':'.$type.'</rule>'; } return $currentstring; } @@ -431,101 +510,154 @@ sub end_accessrule { return $currentstring; } -#-- <body> tag +sub generate_css_links { + my $links; + my $css_href = &Apache::lonnet::EXT('resource.0.cssfile'); + if ($css_href =~ /\S/) { + &Apache::lonxml::extlink($css_href); + $links .= + '<link rel="stylesheet" type="text/css" href="'.$css_href.'" />'; + } + return $links; +} + +#-- <body> tag (end tag required) 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>'; - } - my $onLoad=''; - foreach my $key (keys(%{$token->[2]})) { - if ($key =~ /^onload$/i) { - $onLoad.=$token->[2]->{$key}.';'; - delete($token->[2]->{$key}); - } - } - $token->[2]->{'onload'}=&Apache::lonmenu::loadevents().';'.$onLoad; - my $onUnload=''; - foreach my $key (keys(%{$token->[2]})) { - if ($key =~ /^onunload$/i) { - $onUnload.=$token->[2]->{$key}.';'; - delete($token->[2]->{$key}); - } + + if ($target eq 'web' || $target eq 'webgrade') { + if ($Apache::lonhomework::parsing_a_problem) { + &Apache::lonxml::warning("<body> tag found inside of <problem> tag this can cause problems."); + return ''; } - $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); + if (&is_inside_of($tagstack, "head")) { + &end_head(@_); } - } elsif ($target eq 'tex') { - $currentstring = '\begin{document}'; - } + + my $extra_head = &generate_css_links(); + + # Breadcrumbs + &Apache::lonhtmlcommon::clear_breadcrumbs(); + if ($env{'request.state'} eq 'construct') { + &Apache::lonhtmlcommon::add_breadcrumb({ + 'text' => 'Construction Space', + 'href' => &Apache::loncommon::authorspace(), + }); + &Apache::lonhtmlcommon::add_breadcrumb({ + 'text' => 'HTML Editor', + 'href' => '', + }); + } else { + # FIXME Where are we? + } + + $currentstring = + &Apache::loncommon::start_page($Apache::londefdef::title, + $Apache::londefdef::head + .$extra_head, + {'add_entries' => $token->[2], +# 'no_title' => 1, + 'force_register' => 1}); + + $currentstring .= &Apache::lonhtmlcommon::breadcrumbs(); + + my $header = ''; + if ($env{'request.state'} ne 'published') { + $header=&Apache::lonmenu::constspaceform() + .&Apache::londefdef::edit_controls(); + } + if ($env{'request.state'} eq 'construct') { + $currentstring.=&Apache::loncommon::head_subbox( + &Apache::loncommon::CSTR_pageheader() + .$header); + } + $currentstring.=&Apache::lonxml::message_location(); + } elsif ($target eq 'tex') { + $currentstring = ''; # '\begin{document}' is in header. + } + return $currentstring; } +sub edit_controls { + my ($nochgview) = @_; + my $result .= ' +<form method="post"> +<div class="LC_edit_problem_header">'; + unless ($nochgview) { + $result .= ' +<div class="LC_edit_problem_header_row1">'. +&Apache::lonxml::renderingoptions().' +<input type="submit" name="changeproblemmode" value="'.&mt('Change View').'" /> +</div>'; + } + $result .= ' +<div><input type="submit" name="editmode" accesskey="e" value="'.&mt('Edit').'" /></div> +</div> +</form> +'; + return $result; +} + sub end_body { - my ($target,$token) = @_; - my $currentstring = ''; - if ($target eq 'web') { - $currentstring = $token->[2]; + my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; + my $currentstring = &end_p(); # Close off unclosed <p> + if ($target eq 'web' || $target eq 'webgrade') { + $currentstring .= &Apache::loncommon::end_page({'discussion' => 1}); } elsif ($target eq 'tex') { - $currentstring = '\end{document}'; + $currentstring .= '\strut\newline\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}\newline\noindent \end{document}'; } return $currentstring; } -#-- <center> tag +# \begin{center} causes a new paragprah spacing that looks odd inside +# of a table cell. Same at the end of a \center but with a slightly +# larger space .. hence center_correction and center_end_correction. +# +sub center_correction { return '\vspace*{-6 mm}'; } +sub center_end_correction { return '\vspace*{-7 mm}'; } + +#-- <center> tag (end tag required) sub start_center { - my ($target,$token) = @_; - my $currentstring = ''; - if ($target eq 'web') { - $currentstring = $token->[4]; + my ($target,$token,$tagstack) = @_; + my $currentstring = &end_p(); # Close off any prior para. + if ($target eq 'web' || $target eq 'webgrade') { + $currentstring .= $token->[4]; } elsif ($target eq 'tex') { - $currentstring = '\begin{center}'; - } elsif ($target eq 'latexsource') { - $currentstring = '\begin{center}'; - } + if (&is_inside_of($tagstack, "table")) { + $currentstring .= ¢er_correction(); + } + $currentstring .= '\begin{center}'; + } return $currentstring; } sub end_center { - my ($target,$token) = @_; + my ($target,$token,$tagstack) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[2]; } elsif ($target eq 'tex') { $currentstring = '\end{center}'; - } elsif ($target eq 'latexsource') { - $currentstring = '\end{center}'; - } + if (&is_inside_of($tagstack, "table")) { + $currentstring .= ¢er_end_correction(); + } + } return $currentstring; } -#-- <b> tag +#-- <b> tag (end tag required) +# NOTE: In TeX mode disables internal <p> sub start_b { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[4]; } elsif ($target eq 'tex') { - $currentstring = '\textbf{'; - } elsif ($target eq 'latexsource') { - $currentstring = '\textbf{'; + &disable_para(); + $currentstring .= '\textbf{'; } return $currentstring; } @@ -533,25 +665,24 @@ sub start_b { sub end_b { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[2]; } elsif ($target eq 'tex') { - $currentstring = '}'; - } elsif ($target eq 'latexsource') { - $currentstring = '}'; + &enable_para(); + $currentstring = '}'; } return $currentstring; } -#-- <strong> tag +#-- <strong> tag (end tag required) +# NOTE: in TeX mode disables internal <p> sub start_strong { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[4]; } elsif ($target eq 'tex') { - $currentstring = '\textbf{'; - } elsif ($target eq 'latexsource') { + &disable_para(); $currentstring = '\textbf{'; } return $currentstring; @@ -560,27 +691,25 @@ sub start_strong { sub end_strong { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { - + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[2]; } elsif ($target eq 'tex') { + &enable_para(); $currentstring = '}'; - } elsif ($target eq 'latexsource') { - $currentstring = '}'; - } + } return $currentstring; } -#-- <h1> tag +#-- <h1> tag (end tag required) sub start_h1 { my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; - my $currentstring = ''; - if ($target eq 'web') { + my $currentstring = &end_p(); # Close off any prior para. + if ($target eq 'web' || $target eq 'webgrade') { $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)) { + my $align=lc(&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1)); + if ($align eq 'center') { $pre='\begin{center}'; } elsif ($align eq 'left') { $pre='\rlap{'; @@ -589,10 +718,10 @@ sub start_h1 { } my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0); if (not defined $TeXsize) {$TeXsize="large";} - $currentstring .= $pre.'{\\'.$TeXsize.' \textbf{'; + $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{'; } elsif ($target eq 'meta') { - $currentstring='<subject>'; - &start_output(); + $currentstring.='<subject>'; + &start_output($target); } return $currentstring; } @@ -600,12 +729,12 @@ sub start_h1 { sub end_h1 { my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring .= $token->[2]; } elsif ($target eq 'tex') { - my $post; + my $post='\vskip 0 mm '; my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1); - if (($align eq 'center') || (not defined $align)) { + if ($align eq 'center') { $post='\end{center}'; } elsif ($align eq 'left') { $post='} \hfill'.'\vskip 0 mm '; @@ -614,7 +743,7 @@ sub end_h1 { } $currentstring .= '}}'.$post; } elsif ($target eq 'meta') { - &end_output(); + &end_output($target); $currentstring='</subject>'; } return $currentstring; @@ -623,13 +752,13 @@ sub end_h1 { #-- <h2> tag sub start_h2 { my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; - my $currentstring = ''; - if ($target eq 'web') { + my $currentstring = &end_p(); # Close off any prior para. + if ($target eq 'web' || $target eq 'webgrade') { $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)) { + if ($align eq 'center') { $pre='\begin{center}'; } elsif ($align eq 'left') { $pre='\rlap{'; @@ -638,7 +767,7 @@ sub start_h2 { } my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0); if (not defined $TeXsize) {$TeXsize="large";} - $currentstring .= $pre.'{\\'.$TeXsize.' \textbf{'; + $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{'; } return $currentstring; } @@ -646,12 +775,12 @@ sub start_h2 { sub end_h2 { my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring .= $token->[2]; } elsif ($target eq 'tex') { - my $post; + my $post='\vskip 0 mm '; my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1); - if (($align eq 'center') || (not defined $align)) { + if ($align eq 'center') { $post='\end{center}'; } elsif ($align eq 'left') { $post='} \hfill'.'\vskip 0 mm '; @@ -666,13 +795,13 @@ sub end_h2 { #-- <h3> tag sub start_h3 { my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; - my $currentstring = ''; - if ($target eq 'web') { + my $currentstring = &end_p(); # Close off any prior para. + if ($target eq 'web' || $target eq 'webgrade') { $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)) { + if ($align eq 'center') { $pre='\begin{center}'; } elsif ($align eq 'left') { $pre='\rlap{'; @@ -681,7 +810,7 @@ sub start_h3 { } my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0); if (not defined $TeXsize) {$TeXsize="large";} - $currentstring .= $pre.'{\\'.$TeXsize.' \textbf{'; + $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{'; } return $currentstring; } @@ -689,12 +818,12 @@ sub start_h3 { sub end_h3 { my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring .= $token->[2]; } elsif ($target eq 'tex') { - my $post; + my $post='\vskip 0 mm '; my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1); - if (($align eq 'center') || (not defined $align)) { + if ($align eq 'center') { $post='\end{center}'; } elsif ($align eq 'left') { $post='} \hfill'.'\vskip 0 mm '; @@ -709,13 +838,13 @@ sub end_h3 { #-- <h4> tag sub start_h4 { my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; - my $currentstring = ''; - if ($target eq 'web') { + my $currentstring = &end_p(); # Close off any prior para. + if ($target eq 'web' || $target eq 'webgrade') { $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)) { + if ($align eq 'center') { $pre='\begin{center}'; } elsif ($align eq 'left') { $pre='\rlap{'; @@ -724,7 +853,7 @@ sub start_h4 { } my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0); if (not defined $TeXsize) {$TeXsize="large";} - $currentstring .= $pre.'{\\'.$TeXsize.' \textbf{'; + $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{'; } return $currentstring; } @@ -732,12 +861,12 @@ sub start_h4 { sub end_h4 { my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring .= $token->[2]; } elsif ($target eq 'tex') { - my $post; + my $post='\vskip 0 mm '; my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1); - if (($align eq 'center') || (not defined $align)) { + if ($align eq 'center') { $post='\end{center}'; } elsif ($align eq 'left') { $post='} \hfill'.'\vskip 0 mm '; @@ -752,13 +881,13 @@ sub end_h4 { #-- <h5> tag sub start_h5 { my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; - my $currentstring = ''; - if ($target eq 'web') { + my $currentstring = &end_p(); # Close off any prior paras. + if ($target eq 'web' || $target eq 'webgrade') { $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)) { + if ($align eq 'center') { $pre='\begin{center}'; } elsif ($align eq 'left') { $pre='\rlap{'; @@ -767,7 +896,7 @@ sub start_h5 { } my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0); if (not defined $TeXsize) {$TeXsize="large";} - $currentstring .= $pre.'{\\'.$TeXsize.' \textbf{'; + $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{'; } return $currentstring; } @@ -775,12 +904,12 @@ sub start_h5 { sub end_h5 { my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring .= $token->[2]; } elsif ($target eq 'tex') { - my $post; + my $post='\vskip 0 mm '; my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1); - if (($align eq 'center') || (not defined $align)) { + if ($align eq 'center') { $post='\end{center}'; } elsif ($align eq 'left') { $post='} \hfill'.'\vskip 0 mm '; @@ -795,13 +924,13 @@ sub end_h5 { #-- <h6> tag sub start_h6 { my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; - my $currentstring = ''; - if ($target eq 'web') { + my $currentstring = &end_p(); # Close off any prior paras. + if ($target eq 'web' || $target eq 'webgrade') { $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)) { + if ($align eq 'center') { $pre='\begin{center}'; } elsif ($align eq 'left') { $pre='\rlap{'; @@ -810,7 +939,7 @@ sub start_h6 { } my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval,undef,0); if (not defined $TeXsize) {$TeXsize="large";} - $currentstring .= $pre.'{\\'.$TeXsize.' \textbf{'; + $currentstring .= '\strut\newline '.$pre.'{\\'.$TeXsize.' \textbf{'; } return $currentstring; } @@ -818,12 +947,12 @@ sub start_h6 { sub end_h6 { my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring .= $token->[2]; } elsif ($target eq 'tex') { - my $post; + my $post='\vskip 0 mm '; my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1); - if (($align eq 'center') || (not defined $align)) { + if ($align eq 'center') { $post='\end{center}'; } elsif ($align eq 'left') { $post='} \hfill'.'\vskip 0 mm '; @@ -835,97 +964,83 @@ sub end_h6 { return $currentstring; } -#--- <cite> tag +#--- <cite> tag (end tag required) sub start_cite { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring .= $token->[4]; } elsif ($target eq 'tex') { - $currentstring .= "\\textit{"; - } elsif ($target eq 'latexsource') { - $currentstring .= "\\textit{"; - } + $currentstring .= '\textit{'; + } return $currentstring; } sub end_cite { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring .= $token->[2]; } elsif ($target eq 'tex') { - $currentstring .= "}"; - } elsif ($target eq 'latexsource') { - $currentstring .= "}"; - } + $currentstring .= '}'; + } return $currentstring; } -#-- <i> tag +#-- <i> tag (end tag required) sub start_i { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring .= $token->[4]; } elsif ($target eq 'tex') { $currentstring .= '\textit{'; - } elsif ($target eq 'latexsource') { - $currentstring .= '\textit{'; - } + } return $currentstring; } sub end_i { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring .= $token->[2]; } elsif ($target eq 'tex') { $currentstring .= '}'; - } elsif ($target eq 'latexsource') { - $currentstring .= '}'; } return $currentstring; } -#-- <address> tag +#-- <address> tag (end tag required) sub start_address { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring .= $token->[4]; } elsif ($target eq 'tex') { - $currentstring .= "\\textit{"; - } elsif ($target eq 'latexsource') { - $currentstring .= "\\textit{"; - } + $currentstring .= '\textit{'; + } return $currentstring; } sub end_address { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring .= $token->[2]; } elsif ($target eq 'tex') { - $currentstring .= "}"; - } elsif ($target eq 'latexsource') { - $currentstring .= "}"; + $currentstring .= '}'; } return $currentstring; } -#-- <dfn> tag +#-- <dfn> tag (end tag required) sub start_dfn { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring .= $token->[4]; } elsif ($target eq 'tex') { - $currentstring .= "\\textit{"; - } elsif ($target eq 'latexsource') { - $currentstring .= "\\textit{"; + $currentstring .= '\textit{'; } return $currentstring; } @@ -933,75 +1048,65 @@ sub start_dfn { sub end_dfn { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring .= $token->[2]; } elsif ($target eq 'tex') { - $currentstring .= "}"; - } elsif ($target eq 'latexsource') { - $currentstring .= "}"; - } + $currentstring .= '}'; + } return $currentstring; } -#-- <tt> tag +#-- <tt> tag (end tag required) sub start_tt { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring .= $token->[4]; } elsif ($target eq 'tex') { $currentstring .= '\texttt{'; - } elsif ($target eq 'latexsource') { - $currentstring .= '\texttt{'; - } + } return $currentstring; } sub end_tt { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring .= $token->[2]; } elsif ($target eq 'tex') { $currentstring .= '}'; - } elsif ($target eq 'latexsource') { - $currentstring .= '}'; } return $currentstring; } -#-- <kbd> tag +#-- <kbd> tag (end tag required) sub start_kbd { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring .= $token->[4]; } elsif ($target eq 'tex') { - $currentstring .= "\\texttt"; - } elsif ($target eq 'latexsource') { - $currentstring .= "\\texttt{"; - } + $currentstring .= '\texttt{'; + } return $currentstring; } sub end_kbd { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring .= $token->[2]; } elsif ($target eq 'tex') { - $currentstring .= "}"; - } elsif ($target eq 'latexsource') { - $currentstring .= "}"; - } + $currentstring .= '}'; + } return $currentstring; } -#-- <code> tag +#-- <code> tag (end tag required) sub start_code { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring .= $token->[4]; } elsif ($target eq 'tex') { $currentstring .= '\texttt{'; @@ -1012,7 +1117,7 @@ sub start_code { sub end_code { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring .= $token->[2]; } elsif ($target eq 'tex') { $currentstring .= '}'; @@ -1020,43 +1125,37 @@ sub end_code { return $currentstring; } -#-- <em> tag +#-- <em> tag (end tag required) sub start_em { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring .= $token->[4]; } elsif ($target eq 'tex') { $currentstring .= '\emph{'; - } elsif ($target eq 'latexsource') { - $currentstring .= '\emph{'; - } + } return $currentstring; } sub end_em { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring .= $token->[2]; } elsif ($target eq 'tex') { $currentstring .= '}'; - } elsif ($target eq 'latexsource') { - $currentstring .= '}'; - } + } return $currentstring; } -#-- <q> tag +#-- <q> tag (end tag required) sub start_q { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring .= $token->[4]; } elsif ($target eq 'tex') { - $currentstring .= "\\emph{"; - } elsif ($target eq 'latexsource') { - $currentstring .= "\\emph{"; + $currentstring .= '\emph{'; } return $currentstring; } @@ -1064,169 +1163,246 @@ sub start_q { sub end_q { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring .= $token->[2]; } elsif ($target eq 'tex') { - $currentstring .= "}"; - } elsif ($target eq 'latexsource') { - $currentstring .= "}"; - } + $currentstring .= '}'; + } return $currentstring; } -#-- <p> tag +# <p> is a bit strange since it does not require a closing </p> +# However in latex, we must often output closing stuff to end +# environments and {}'s etc. Therefore we do all the work +# of figuring out the ending strings in the start tag processing, +# and provide a mechanism to output the stop text external +# to tag processing. +# +{ + + my $closing_string = ''; # String required to close <p> + +# Some tags are <p> fragile meaning that <p> inside of them +# does not work within TeX mode. This is managed via the +# counter below: +# + + my $para_disabled = 0; + +sub disable_para { + $para_disabled++; +} +sub enable_para { + $para_disabled--; +} + + +#-- <p> tag (end tag optional) +#optional attribute - align="center|left|right" sub start_p { - my ($target,$token) = @_; + my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { + $currentstring .= &end_p(); # close off prior para if in progress. $currentstring .= $token->[4]; - } elsif ($target eq 'tex') { - $currentstring .= '{\par '; - } elsif ($target eq 'latexsource') { - $currentstring .= '{\par '; - } - return $currentstring; -} + if (! ($currentstring =~ /\//)) { + $closing_string = '</p>'; # Deal correctly with <p /> e.g. + } + } elsif ($target eq 'tex' && !$para_disabled) { + + $currentstring .= &end_p(); # close off prior para if in progress. + my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1); + if ($align eq 'center') { + $currentstring .='\begin{center}\par '; + $closing_string = '\end{center}'; + if (&is_inside_of($tagstack, "table")) { + $currentstring = ¢er_correction().$currentstring; + } + } elsif ($align eq 'right') { + $currentstring.="\n".'{\flushright '; +# $currentstring.='\makebox['.$env{'form.textwidth'}.']{\hfill\llap{'; + $closing_string= "}\n"; + } elsif ($align eq 'left') { + $currentstring.= "\n".'{\flushleft '; +# $currentstring.='\noindent\makebox['.$env{'form.textwidth'}.']{{'; + $closing_string = "}\n"; + } else { + $currentstring.='\par '; + if (&is_inside_of($tagstack, 'table')) { + $closing_string = '\vskip 0pt'; # Seems to be consistent with <p> in tables. + } else { + $closing_string = '\strut\\\\\strut '; + } + } -sub end_p { - my ($target,$token) = @_; - my $currentstring = ''; - if ($target eq 'web') { - $currentstring .= $token->[2]; - } elsif ($target eq 'tex') { - $currentstring .= '}'; - } elsif ($target eq 'latexsource') { - $currentstring .= '}'; } return $currentstring; } +# +# End paragraph processing just requires that we output the +# closing string that was saved and blank it. +sub end_p { + # Note only 'tex' mode uses disable_para and enable_para + # so we don't need to know the target in the check below: -#-- <br> tag + if (!$para_disabled) { + my $current_string = $closing_string; + $closing_string = ''; # Not in a para anymore. + return $current_string; + } else { + return ''; + } + +} +} +#-- <br> tag (end tag forbidden) sub start_br { my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring .= $token->[4]; } elsif ($target eq 'tex') { - if ($$tagstack[-2] ne 'sub' && $$tagstack[-2] ne 'sup') { - $currentstring .= '\vskip 0.2 mm'; + my @tempo=@$tagstack; + my $signal=0; + # Not going to factor this to is_inside_of since that would require + # multiple stack traversals. + # + for (my $i=$#tempo;$i>=0;$i--) { + if (($tempo[$i] eq 'b') || ($tempo[$i] eq 'strong') || + ($tempo[$i] eq 'ol') || ($tempo[$i] eq 'ul')) { + $signal=1; + } + if (($tempo[$i] eq 'td') || ($tempo[$i] eq 'th')) { + $signal = 1; + } } - } elsif ($target eq 'latexsource') { - $currentstring .= '\\'; - } + if ($signal != 1) { + $currentstring .= '\strut \\\\ \strut '; + } + + } return $currentstring; } sub end_br { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring .= $token->[2]; } return $currentstring; } -#-- <big> tag +#-- <big> tag (end tag required) sub start_big { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring .= $token->[4]; } elsif ($target eq 'tex') { - $currentstring .= '\large{'; - } elsif ($target eq 'latexsource') { - $currentstring .= '{\Large '; - } + $currentstring .= '{\large '; + } return $currentstring; } sub end_big { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring .= $token->[2]; } elsif ($target eq 'tex') { $currentstring .= '}'; - } elsif ($target eq 'latexsource') { - $currentstring .= '}'; } return $currentstring; } -#-- <small> tag +#-- <small> tag (end tag required) sub start_small { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring .= $token->[4]; } elsif ($target eq 'tex') { $currentstring .= '{\footnotesize '; - } elsif ($target eq 'latexsource') { - $currentstring .= '{\footnotesize '; - } + } return $currentstring; } sub end_small { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring .= $token->[2]; } elsif ($target eq 'tex') { $currentstring .= '}'; - } elsif ($target eq 'latexsource') { - $currentstring .= '}'; } return $currentstring; } -#-- <basefont> tag +#-- <basefont> tag (end tag forbidden) sub start_basefont { - my ($target,$token) = @_; + my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[4]; - } + } elsif ($target eq 'tex') { + my $basesize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval); + if (defined $basesize) { + $currentstring = '{\\'.$basesize.' '; + } + } return $currentstring; } sub end_basefont { - my ($target,$token) = @_; + my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[4]; - } + } elsif ($target eq 'tex') { + my $basesize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval); + if (defined $basesize) { + $currentstring = '}'; + } + } return $currentstring; } -#-- <font> tag +#-- <font> tag (end tag required) sub start_font { my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { my $face=&Apache::lonxml::get_param('face',$parstack,$safeeval); - if ($face=~/symbol/i) {$Apache::lonxml::prevent_entity_encode++;} $currentstring = $token->[4]; - } + } elsif ($target eq 'tex') { + my $fontsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval); + if (defined $fontsize) { + $currentstring = '{\\'.$fontsize.' '; + } + } return $currentstring; } sub end_font { my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; my $currentstring = ''; - if ($target eq 'web') { - my $face=&Apache::lonxml::get_param('face',$parstack,$safeeval); - if ($face=~/symbol/i) {$Apache::lonxml::prevent_entity_encode--;} + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[2]; - } + } elsif ($target eq 'tex') { + my $fontsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval); + if (defined $fontsize) { + $currentstring = '}'; + } + } return $currentstring; } -#-- <strike> tag +#-- <strike> tag (end tag required) sub start_strike { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring .= $token->[4]; } elsif ($target eq 'tex') { &Apache::lonxml::startredirection(); @@ -1237,7 +1413,7 @@ sub start_strike { sub end_strike { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring .= $token->[2]; } elsif ($target eq 'tex') { $currentstring=&Apache::lonxml::endredirection(); @@ -1248,11 +1424,11 @@ sub end_strike { return $currentstring; } -#-- <s> tag +#-- <s> tag (end tag required) sub start_s { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring .= $token->[4]; } elsif ($target eq 'tex') { &Apache::lonxml::startredirection(); @@ -1263,7 +1439,7 @@ sub start_s { sub end_s { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring .= $token->[2]; } elsif ($target eq 'tex') { $currentstring=&Apache::lonxml::endredirection(); @@ -1274,14 +1450,14 @@ sub end_s { return $currentstring; } -#-- <sub> tag +#-- <sub> tag (end tag required) sub start_sub { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring .= $token->[4]; } elsif ($target eq 'tex') { - $currentstring .= "\$_{ "; + $currentstring .= '\raisebox{-\smallskipamount}{\scriptsize{'; } return $currentstring; } @@ -1289,22 +1465,22 @@ sub start_sub { sub end_sub { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring .= $token->[2]; } elsif ($target eq 'tex') { - $currentstring .= " }\$"; + $currentstring .= '}}'; } return $currentstring; } -#-- <sup> tag +#-- <sup> tag (end tag required) sub start_sup { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring .= $token->[4]; } elsif ($target eq 'tex') { - $currentstring .= "\$^{ "; + $currentstring .= '\raisebox{\smallskipamount}{\scriptsize{'; } return $currentstring; } @@ -1312,29 +1488,50 @@ sub start_sup { sub end_sup { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring .= $token->[2]; } elsif ($target eq 'tex') { - $currentstring .= " }\$"; + $currentstring .= '}}'; } return $currentstring; } -#-- <hr> tag +#-- <hr> tag (end tag forbidden) sub start_hr { my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; - my $currentstring = ''; - if ($target eq 'web') { + my $currentstring = &end_p(); # End enclosing para. + if ($target eq 'web' || $target eq 'webgrade') { $currentstring .= $token->[4]; } elsif ($target eq 'tex') { - my $LaTeXwidth = &Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,0); + + # <hr /> can't be inside of <sup><sub> thank you LaTeX. + # + my $restart_sub = 0; + my $restart_sup = 0; + + # Since <sub> and <sup> are simple tags it's ok to turn off/on + # using the start_ stop_ functions.. those tags only care about + # $target. + + if (&is_inside_of($tagstack, "sub")) { + $restart_sub = 1; + $currentstring .= &end_sub($target, $token, $tagstack, + $parstack, $parser, $safeeval); + } + if (&is_inside_of($tagstack, "sup")) { + $restart_sup = 1; + $currentstring .= &end_sup($target, $token, $tagstack, + $parstack, $parser, $safeeval); + } + + 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 ='0.95\textwidth'; + $LaTeXwidth ='0.9\textwidth'; } my ($pre,$post); my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1); @@ -1345,8 +1542,18 @@ sub start_hr { } elsif ($align eq 'right') { $pre=' \hfill \llap{'; $post='}'; } - $currentstring .= ' \vskip 0 mm \noindent\makebox[\textwidth]{'.$pre.'\makebox['. + $currentstring .= ' \vskip 0 mm \noindent\makebox['.$LaTeXwidth.']{'.$pre.'\makebox['. $LaTeXwidth.'][b]{\hrulefill}'.$post.'}\vskip 0 mm '; + # Turn stuff back on that we can't be inside of. + + if ($restart_sub) { + $currentstring .= &start_sub($target, $token, $tagstack, + $parstack, $parser, $safeeval); + } + if ($restart_sup) { + $currentstring .= &start_sup($target, $token, $tagstack, + $parstack, $parser, $safeeval); + } } return $currentstring; } @@ -1354,97 +1561,184 @@ sub start_hr { sub end_hr { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring .= $token->[2]; - } elsif ($target eq 'tex') { - } + } return $currentstring; } -#-- <div> tag +#-- <div> tag (end tag required) +{ + +# Since div can be nested, the stack below is used +# in 'tex' mode to store the ending strings +# for the div stack. + + my @div_end_stack; + sub start_div { - my ($target,$token) = @_; - my $currentstring = ''; - if ($target eq 'web') { + my ($target,$token, $tagstack, $parstack, $parser, $safeeval) = @_; + my $currentstring = &end_p(); # Close enclosing para. + if ($target eq 'web' || $target eq 'webgrade') { $currentstring .= $token->[4]; } + if ($target eq 'tex') { + # 4 possible alignments: left, right, center, and -missing-. + # If inside a table row, we must let the table logic + # do the alignment, however. + # + + my $endstring = ''; + + my $align = lc(&Apache::lonxml::get_param('align', $parstack, + $safeeval, undef, 1)); + if ($align eq 'center') { + $currentstring .= '\begin{center}'; + $endstring = '\end{center}'; + if (&is_inside_of($tagstack, "table")) { + $currentstring = ¢er_correction().$currentstring; + $endstring .= ¢er_end_correction(); + } + } + elsif ($align eq 'right') { + $currentstring .= '\begin{flushright}'; + $endstring .= '\end{flushright}'; + } elsif ($align eq 'left') { + $currentstring .= '\begin{flushleft}'; + $endstring = '\end{flushleft}'; + } else { + + } + $currentstring .= "\n"; # For human readability. + $endstring = "\n$endstring\n"; # For human readability + push(@div_end_stack, $endstring); + } return $currentstring; } sub end_div { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring .= $token->[2]; - } + } + if ($target eq 'tex') { + my $endstring = pop @div_end_stack; + $currentstring .= $endstring; + } return $currentstring; } +} -#-- <a> tag +#-- <a> tag (end tag required) sub start_a { - my ($target,$token) = @_; + my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; my $currentstring = ''; - if ($target eq 'web') { - $currentstring .= $token->[4]; - } elsif ($target eq 'tex') { + if ($target eq 'web' || $target eq 'webgrade') { + my $href=&Apache::lonxml::get_param('href',$parstack,$safeeval, + undef,1); + $currentstring=&Apache::lonenc::encrypt_ref($token,{'href'=>$href}); + if ($href =~ /\S/) { + if ($href !~ m{^https?://}) { + my $url=&Apache::lonnet::hreflocation('',$env{'request.filename'}); + my $linkurl; + if ($href =~ m{^/uploaded/}) { + $linkurl = $href; + } elsif ($href =~ m{^[^/]}) { + my $path = $url; + $path =~ s{[^/]*$}{}; + $linkurl = $path.$href; + } + if ($linkurl =~ m{^/uploaded/}) { + if (!&Apache::lonnet::allowed('bre',$linkurl)) { + if (&Apache::lonnet::is_on_map($url)) { + &Apache::lonxml::extlink($linkurl); + } + } + } + } + } } return $currentstring; } sub end_a { - my ($target,$token,$tagstack,$stackref) = @_; + my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring .= $token->[2]; - } elsif ($target eq 'tex') { - my $tempor_var = $stackref->[$#$stackref]; - if (index($tempor_var,'name') != -1 ) { - $tempor_var =~ s/name=([^,]*),/$1/g; - } elsif (index($tempor_var,'href') != -1 ) { - $tempor_var =~ s/href=([^,]*),/$1/g; - $currentstring .= " \\ref{$tempor_var}"; - } + } + if ($target eq 'tex') { + my $href = + &Apache::lonxml::get_param('href',$parstack,$safeeval,undef,1); + my $name = + &Apache::lonxml::get_param('name',$parstack,$safeeval,undef,1); + my $uriprint = + &Apache::lonxml::get_param('uriprint',$parstack,$safeeval,undef,1); + my $anchorprint = + &Apache::lonxml::get_param('anchorprint',$parstack,$safeeval,undef,1); + if (($href =~ /\S/) && ($uriprint=~/^on|uriprint|yes|1$/i)) { + $href =~ s/([^\\])%/$1\\\%/g; + # Substitute special symbols... and allow line breaks at each / + # + $href = &Apache::lonxml::latex_special_symbols($href); + $href =~ s/\//\/\\-/g; # Map / to /\- to allow hyphenation. + $currentstring .= ' ({\tt URI:'.$href.'})'; + } elsif (($name =~ /\S/) && ($anchorprint=~/^on|anchorprint|yes|1$/i)) { + $currentstring .= ' ({\tt Anchor:'.&Apache::lonxml::latex_special_symbols($name).'})'; + } else { + $currentstring.=''; + } } return $currentstring; } -#-- <li> tag +#-- <li> tag (end tag optional) sub start_li { - my ($target,$token,$tagstack,$stackref) = @_; + my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[4]; } elsif ($target eq 'tex') { - my $tempor_var = $stackref->[$#$stackref]; - if (index($tempor_var,'circle') != -1 ) { - $currentstring .= " \\item[o] "; - } elsif (index($tempor_var,'square') != -1 ) { - $currentstring .= " \\item[$\Box$] "; - } elsif ($tempor_var ne '') { - $_ = $tempor_var; - m/my\s*([^=]*)=/; - $currentstring .= " \\item[$1] "; + my $type=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,0); + my $value=&Apache::lonxml::get_param('value',$parstack,$safeeval,undef,0); + #FIXME need to support types i and I + if ($type=~/disc/) { + $currentstring .= ' \item[$\bullet$] '; + } elsif ($type=~/circle/) { + $currentstring .= ' \item[$\circ$] '; + } elsif ($type=~/square/) { + $currentstring .= ' \item[$\diamond$] '; + } elsif ($type eq '1') { + $currentstring .= ' \item['.($Apache::londefdef::list_index+1).'.]'; + } elsif ($type eq 'A') { + $currentstring .= ' \item['.('A'..'Z')[$Apache::londefdef::list_index].'.]'; + } elsif ($type eq 'a') { + $currentstring .= ' \item['.('a'..'z')[$Apache::londefdef::list_index].'.]'; + } elsif ($value ne '') { + $currentstring .= ' \item['.$value.'] '; } else { - $currentstring .= " \\item "; + $currentstring .= ' \item '; } - } + $Apache::londefdef::list_index++; + } return $currentstring; } sub end_li { my ($target,$token) = @_; - my $currentstring = ''; - if ($target eq 'web') { - $currentstring = $token->[2]; + my $currentstring = &end_p(); # In case there's a <p> in the <li> + if ($target eq 'web' || $target eq 'webgrade') { + $currentstring .= $token->[2]; } return $currentstring; } -#-- <u> tag +#-- <u> tag (end tag required) sub start_u { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring .= $token->[4]; } elsif ($target eq 'tex') { &Apache::lonxml::startredirection(); @@ -1455,7 +1749,7 @@ sub start_u { sub end_u { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring .= $token->[2]; } elsif ($target eq 'tex') { $currentstring=&Apache::lonxml::endredirection(); @@ -1466,31 +1760,32 @@ sub end_u { return $currentstring; } -#-- <ul> tag +#-- <ul> tag (end tag required) sub start_ul { my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; - my $currentstring = ''; - if ($target eq 'web') { - $currentstring = $token->[4]; + my $currentstring = &end_p(); # Close off enclosing list. + if ($target eq 'web' || $target eq 'webgrade') { + $currentstring .= $token->[4]; } elsif ($target eq 'tex') { my $TeXtype=&Apache::lonxml::get_param('type',$parstack,$safeeval,undef,0); + $Apache::londefdef::list_index=0; if ($TeXtype eq 'disc') { - $currentstring .= ' \renewcommand{\labelitemi}{$\bullet$} - \renewcommand{\labelitemii}{$\bullet$} - \renewcommand{\labelitemiii}{$\bullet$} - \renewcommand{\labelitemiv}{$\bullet$}'; + $currentstring .= '\renewcommand{\labelitemi}{$\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$}'; + $currentstring .= '\renewcommand{\labelitemi}{$\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$}'; + $currentstring .= '\renewcommand{\labelitemi}{$\diamond$}'. + '\renewcommand{\labelitemii}{$\diamond$}'. + '\renewcommand{\labelitemiii}{$\diamond$}'. + '\renewcommand{\labelitemiv}{$\diamond$}'; } - $currentstring .= '\begin{itemize}'; + $currentstring .= '\strut \begin{itemize}'; } return $currentstring; } @@ -1498,22 +1793,22 @@ sub start_ul { sub end_ul { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[2]; } elsif ($target eq 'tex') { - $currentstring = '\end{itemize} \renewcommand{\labelitemi}{$\bullet$} - \renewcommand{\labelitemii}{$\bullet$} - \renewcommand{\labelitemiii}{$\bullet$} - \renewcommand{\labelitemiv}{$\bullet$}'; + $currentstring = '\end{itemize} \renewcommand{\labelitemi}{$\bullet$}'. + '\renewcommand{\labelitemii}{$\bullet$}'. + '\renewcommand{\labelitemiii}{$\bullet$}'. + '\renewcommand{\labelitemiv}{$\bullet$}\strut '; } return $currentstring; } -#-- <menu> tag +#-- <menu> tag (end tag required) sub start_menu { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[4]; } elsif ($target eq 'tex') { $currentstring = " \\begin{itemize} "; @@ -1524,7 +1819,7 @@ sub start_menu { sub end_menu { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[2]; } elsif ($target eq 'tex') { $currentstring = " \\end{itemize}"; @@ -1532,14 +1827,14 @@ sub end_menu { return $currentstring; } -#-- <dir> tag +#-- <dir> tag (end tag required) sub start_dir { my ($target,$token) = @_; - my $currentstring = ''; - if ($target eq 'web') { - $currentstring = $token->[4]; + my $currentstring = &end_p(); # In case there's a <p> prior to the list. + if ($target eq 'web' || $target eq 'webgrade') { + $currentstring .= $token->[4]; } elsif ($target eq 'tex') { - $currentstring = " \\begin{itemize} "; + $currentstring .= " \\begin{itemize} "; } return $currentstring; } @@ -1547,7 +1842,7 @@ sub start_dir { sub end_dir { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[2]; } elsif ($target eq 'tex') { $currentstring = " \\end{itemize}"; @@ -1555,41 +1850,42 @@ sub end_dir { return $currentstring; } -#-- <ol> tag +#-- <ol> tag (end tag required) sub start_ol { my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; - my $currentstring = ''; - if ($target eq 'web') { - $currentstring = $token->[4]; + my $currentstring = &end_p(); # In case there's a <p> prior to the list. + if ($target eq 'web' || $target eq 'webgrade') { + $currentstring .= $token->[4]; } elsif ($target eq 'tex') { + $Apache::londefdef::list_index=0; 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}.}'; + $currentstring .= '\renewcommand{\labelenumi}{\arabic{enumi}.}'. + '\renewcommand{\labelenumii}{\arabic{enumii}.}'. + '\renewcommand{\labelenumiii}{\arabic{enumiii}.}'. + '\renewcommand{\labelenumiv}{\arabic{enumiv}.}'; } elsif ($type eq 'A') { - $currentstring .= ' \renewcommand{\labelenumi}{\Alph{enumi}.} - \renewcommand{\labelenumii}{\Alph{enumii}.} - \renewcommand{\labelenumiii}{\Alph{enumiii}.} - \renewcommand{\labelenumiv}{\Alph{enumiv}.}'; + $currentstring .= '\renewcommand{\labelenumi}{\Alph{enumi}.}'. + '\renewcommand{\labelenumii}{\Alph{enumii}.}'. + '\renewcommand{\labelenumiii}{\Alph{enumiii}.}'. + '\renewcommand{\labelenumiv}{\Alph{enumiv}.}'; } elsif ($type eq 'a') { - $currentstring .= ' \renewcommand{\labelenumi}{\alph{enumi}.} - \renewcommand{\labelenumii}{\alph{enumii}.} - \renewcommand{\labelenumiii}{\alph{enumiii}.} - \renewcommand{\labelenumiv}{\alph{enumiv}.} '; + $currentstring .= '\renewcommand{\labelenumi}{\alph{enumi}.}'. + '\renewcommand{\labelenumii}{\alph{enumii}.}'. + '\renewcommand{\labelenumiii}{\alph{enumiii}.}'. + '\renewcommand{\labelenumiv}{\alph{enumiv}.}'; } elsif ($type eq 'i') { - $currentstring .= ' \renewcommand{\labelenumi}{\roman{enumi}.} - \renewcommand{\labelenumii}{\roman{enumii}.} - \renewcommand{\labelenumiii}{\roman{enumiii}.} - \renewcommand{\labelenumiv}{\roman{enumiv}.} '; + $currentstring .= '\renewcommand{\labelenumi}{\roman{enumi}.}'. + '\renewcommand{\labelenumii}{\roman{enumii}.}'. + '\renewcommand{\labelenumiii}{\roman{enumiii}.}'. + '\renewcommand{\labelenumiv}{\roman{enumiv}.}'; } elsif ($type eq 'I') { - $currentstring .= ' \renewcommand{\labelenumi}{\Roman{enumi}.} - \renewcommand{\labelenumii}{\Roman{enumii}.} - \renewcommand{\labelenumiii}{\Roman{enumiii}.} - \renewcommand{\labelenumiv}{\Roman{enumiv}.} '; + $currentstring .= '\renewcommand{\labelenumi}{\Roman{enumi}.}'. + '\renewcommand{\labelenumii}{\Roman{enumii}.}'. + '\renewcommand{\labelenumiii}{\Roman{enumiii}.}'. + '\renewcommand{\labelenumiv}{\Roman{enumiv}.}'; } - $currentstring .= '\begin{enumerate}'; + $currentstring .= '\strut \begin{enumerate}'; } return $currentstring; } @@ -1597,94 +1893,245 @@ sub start_ol { sub end_ol { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $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}.}'; + $currentstring = '\end{enumerate}\renewcommand{\labelenumi}{\arabic{enumi}.}'. + '\renewcommand{\labelenumii}{\arabic{enumii}.}'. + '\renewcommand{\labelenumiii}{\arabic{enumiii}.}'. + '\renewcommand{\labelenumiv}{\arabic{enumiv}.}\strut '; } return $currentstring; } -#-- <dl> tag +#-- <dl> tag (end tag required) sub start_dl { my ($target,$token) = @_; - my $currentstring = ''; - if ($target eq 'web') { - $currentstring = $token->[4]; - } elsif ($target eq 'tex') { - $currentstring = '\begin{description}'; + my $currentstring = &end_p(); # In case there's a <p> unclosed prior to the list. + if ($target eq 'web' || $target eq 'webgrade') { + $currentstring .= $token->[4]; + } elsif ($target eq 'tex') { + $currentstring .= '\begin{description}'; + $Apache::londefdef::DL++; + push(@Apache::londefdef::description,[]); + $Apache::londefdef::DD[$Apache::londefdef::DL]=0; + $Apache::londefdef::DT[$Apache::londefdef::DL]=0; + $Apache::londefdef::seenDT[$Apache::londefdef::DL]=0; } return $currentstring; } sub end_dl { - my ($target,$token) = @_; + my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[2]; } elsif ($target eq 'tex') { - $currentstring = '\end{description}'; + if ($Apache::londefdef::DT[-1]) { &end_dt(@_); } + if ($Apache::londefdef::DD[-1]) { &end_dd(@_); } + foreach my $element (@{$Apache::londefdef::description[-1]}) { + $currentstring.=' '.$element.' '; + } + pop(@Apache::londefdef::description); + $currentstring.='\end{description}'; + delete($Apache::londefdef::DD[$Apache::londefdef::DL]); + delete($Apache::londefdef::DT[$Apache::londefdef::DL]); + delete($Apache::londefdef::seenDT[$Apache::londefdef::DL]); + $Apache::londefdef::DL--; } return $currentstring; } -#-- <dt> tag +#-- <dt> tag (end tag optional) sub start_dt { - my ($target,$token) = @_; - my $currentstring = ''; - if ($target eq 'web') { + my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; + my $currentstring=''; + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[4]; } elsif ($target eq 'tex') { - $currentstring = '\item['; + if ($Apache::londefdef::DT[-1]) { &end_dt(@_); } + if ($Apache::londefdef::DD[-1]) { &end_dd(@_); } + &Apache::lonxml::startredirection(); + $Apache::londefdef::DT[-1]++; + $Apache::londefdef::seenDT[-1]=1; } return $currentstring; } sub end_dt { - my ($target,$token) = @_; + my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[2]; } elsif ($target eq 'tex') { - $currentstring = ']'; + if ($Apache::londefdef::DT[-1]) { + my $data=&item_cleanup(); + push(@{$Apache::londefdef::description[-1]},'\item['.$data.'] \strut \vskip 0mm'); + $Apache::londefdef::DT[-1]--; + } } return $currentstring; } -#-- <dd> tag +sub item_cleanup { + my $item=&Apache::lonxml::endredirection(); + $item=~s/\\begin{center}//g; + $item=~s/\\end{center}//g; + return $item; +} + +#-- <dd> tag (end tag optional) sub start_dd { - my ($target,$token) = @_; + my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[4]; + } elsif ($target eq 'tex') { + if ($Apache::londefdef::DT[-1]) { &end_dt(@_); } + if ($Apache::londefdef::DD[-1]) { &end_dd(@_);} + if (!$Apache::londefdef::seenDT[-1]) { + push(@{$Apache::londefdef::description[-1]},'\item[\strut] \strut \vskip 0mm '); + } + push(@{$Apache::londefdef::description[-1]},''); + $Apache::londefdef::description[-1]->[-1].=' \strut '; + $Apache::londefdef::DD[-1]++; + &Apache::lonxml::startredirection(); } return $currentstring; } sub end_dd { - my ($target,$token) = @_; + my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[2]; - } + } elsif ($target eq 'tex') { + $Apache::londefdef::description[-1]->[-1].= + &Apache::lonxml::endredirection().' \vskip 0mm '; + $Apache::londefdef::DD[-1]--; + } return $currentstring; } -#-- <table> tag +#-- <table> tag (end tag required) +# <table> also ends any prior <p> that is not closed. +# but, unless I allow <p>'s to nest, that's the +# only way I could think of to allow <p> in +# <tr> <th> bodies +# +#list of supported attributes: border,width,TeXwidth,TeXtheme +# align sub start_table { my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; - my $currentstring = ''; - if ($target eq 'web') { - $currentstring = $token->[4]; + my $textwidth = ''; + my $currentstring = &end_p(); + if ($target eq 'web' || $target eq 'webgrade') { + $currentstring .= $token->[4]; } elsif ($target eq 'tex') { - my $aa = {}; - push @Apache::londefdef::table, $aa; + &disable_para(); # Can't have paras in a table. + + + # New table code: + + # Get the parameters that we can do something about: + + my $border = &Apache::lonxml::get_param('border', $parstack, $safeeval, undef, 0); + my $width = &Apache::lonxml::get_param('TeXwidth', $parstack, $safeeval, undef, 0); + my $theme = &Apache::lonxml::get_param('TeXtheme', $parstack, $safeeval, undef, 0); + my $align = &Apache::lonxml::get_param('align', $parstack, $safeeval, undef, 0); + + # The only thing that needs any figuring out is the width.. and then only if it is + # a percent. If not it's assumed to be some valid TeX measurement unit e.g. 3.0cm + # + + my $table = new Apache::lontable(); + if ($border ne '') { + $table->table_border(1); + $table->cell_border(1); + } + if ($theme ne '') { + $table->theme($theme); + } + if ($align ne '') { + $table->alignment($align); + } + + # Missing width is most of page width + + if ($width eq "") { + $width = '70%'; + } + + # If a percentage, need to calculate what this means in terms of + # page width: + + if ($width =~ /%$/) { + my $textwidth = &recalc($env{'form.textwidth'}); # Page width in mm. + $width =~ s/%//; + $width = $width * $textwidth / 100.0; + $width .= " mm"; + $table->width($width); + } + + push(@Apache::londefdef::table, $table); + $currentstring.=' \keephidden{NEW TABLE ENTRY}'; + + #-------------------------------------------------------- + # Old table code here. + #-------------------------------------------------------- + + + if (0) { + push(@Apache::londefdef::table, {}); $Apache::londefdef::table[-1]{'row_number'} = -1; - $Apache::londefdef::table[-1]{'output'} = ' \noindent \begin{tabular} '; - my $border = &Apache::lonxml::get_param('border',$parstack,$safeeval,undef,1); + #maximum table's width (default coincides with text line length) + if ($#Apache::londefdef::table==0) { + $textwidth=&recalc($env{'form.textwidth'}); #result is always in mm + $textwidth=~/(\d+\.?\d*)/; + $textwidth=0.85*$1; #accounts "internal" LaTeX space for table frame + } else { + if ($Apache::londefdef::table[-2]{'TeXlen'}[$Apache::londefdef::table[-2]{'row_number'}][$Apache::londefdef::table[-2]{'counter_columns'}]=~/\d/) { + #the maximum width of nested table is determined by LATeX width of parent cell + $textwidth=$Apache::londefdef::table[-2]{'TeXlen'}[$Apache::londefdef::table[-2]{'row_number'}][$Apache::londefdef::table[-2]{'counter_columns'}]; + } else { + #try to use all space not used before (minus 5% for LaTeX table internal) - rather silly + $textwidth=$Apache::londefdef::table[-2]{'width'}; + for (my $i=0;$i<$Apache::londefdef::table[-2]{'counter_columns'};$i++) { + $textwidth=$textwidth-$Apache::londefdef::table[-2]{'TeXlen'}[0][$i]; + } + } + } + + # width either comes forced from the TeXwidth or the width parameters. + # in either case it can be a percentage or absolute width. + # in the width case we ignore absolute width + my $TeXwidth = &Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0); + if (!defined($TeXwidth)) { + my $htmlwidth = &Apache::lonxml::get_param('width',$parstack, + $safeeval,undef,1); + if ($htmlwidth =~ /%/) { + $TeXwidth = $htmlwidth; + } else { + $TeXwidth = $textwidth; + } + } + # if the width is specified as a % it is converted to an absolute width. + # otherwise.. just plugged right in the hash + + if ($TeXwidth=~/%/) { + $TeXwidth=~/(\d+)/; + $Apache::londefdef::table[-1]{'width'}=$1*$textwidth/100; + } else { + $Apache::londefdef::table[-1]{'width'}=$TeXwidth; + } + # In the end, however the table width cannot be wider than $textwidth... + + if ($Apache::londefdef::table[-1]{'width'} > $textwidth) { + $Apache::londefdef::table[-1]{'width'} = $textwidth; + } + #table's border + my $border = &Apache::lonxml::get_param('border',$parstack,$safeeval); + my $permission=&Apache::lonxml::get_param('TeXDropEmptyColumns',$parstack,$safeeval,undef,0); unless (defined $border) { $border = 0; } if ($border) { $Apache::londefdef::table[-1]{'hinc'} = '\hline '; @@ -1695,13 +2142,22 @@ sub start_table { $Apache::londefdef::table[-1]{'vinc'} = '&'; $Apache::londefdef::table[-1]{'vvinc'} = ''; } - my $width; - foreach my $key (keys(%{$token->[2]})) { - if ($key =~ /^width$/i) { - $width = &Apache::lonxml::get_param($key,$parstack,$safeeval,undef,1); - } - } - if (defined($width)) { $Apache::londefdef::table[-1]{'width'}=$width; } + if ($#Apache::londefdef::table==0) { + # Note that \newline seems to destroy the alignment envs. + # $Apache::londefdef::table[-1]{'output'}='\strut\newline\strut\setlength{\tabcolsep}{1 mm}'; + $Apache::londefdef::table[-1]{'output'}='\strut'.'\\\\'."\n".'\strut\setlength{\tabcolsep}{1 mm}'; + } + $Apache::londefdef::table[-1]{'output'}.=' \noindent \begin{tabular} '; + $Apache::londefdef::table[-1]{'TeXlen'}=[]; + $Apache::londefdef::table[-1]{'objectlen'}=[]; + $Apache::londefdef::table[-1]{'objectsignal'}=[]; + $Apache::londefdef::table[-1]{'maxlen'}=[]; + $Apache::londefdef::table[-1]{'minlen'}=[]; + $Apache::londefdef::table[-1]{'content'}=[]; + $Apache::londefdef::table[-1]{'align'}=[]; + $currentstring.=' \keephidden{NEW TABLE ENTRY}'; + } + } return $currentstring; } @@ -1709,318 +2165,1080 @@ sub start_table { sub end_table { my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[2]; } elsif ($target eq 'tex') { + + + # New table code: + + my $table = pop(@Apache::londefdef::table); + my $t = $table->generate(); + $currentstring = $t->generate_string(); + &enable_para(); + #-------------------------------------------------------------- + # Old table code: + #-------------------------------------------------------------- + + if (0) { + + my $border = &Apache::lonxml::get_param('border',$parstack,$safeeval); my $inmemory = ''; my $output = ''; + my $WARNING=''; + #width of columns from TeXwidth attributes + + # Protect against unbalanced </table> tag. + + if (scalar(@Apache::londefdef::table) > 0) { + + for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) { + for (my $jn=0;$jn<=$Apache::londefdef::table[-1]{'counter_columns'};$jn++) { + if ($Apache::londefdef::table[-1]{'TeXlen'}[0][$jn]<$Apache::londefdef::table[-1]{'TeXlen'}[$in][$jn]) { + $Apache::londefdef::table[-1]{'TeXlen'}[0][$jn]=$Apache::londefdef::table[-1]{'TeXlen'}[$in][$jn]; + } + } + } + #free space and number of empty columns + my ($available_space,$empty_columns)=($Apache::londefdef::table[-1]{'width'},0); + if ($#Apache::londefdef::table ne 0) {$available_space=0.9*$available_space;} + for (my $jn=0;$jn<=$Apache::londefdef::table[-1]{'counter_columns'};$jn++) { + if ($Apache::londefdef::table[-1]{'TeXlen'}[0][$jn]==0) { + $empty_columns++; + } else { + $available_space=$available_space-$Apache::londefdef::table[-1]{'TeXlen'}[0][$jn]; + } + } + + #boundaries for contents columns + my @min_len=();#columns can not be narrower + my @max_len=();#maximum length of column + my $avg_max; + my $avg_min; + my $counter_cols = $Apache::londefdef::table[-1]{'counter_columns'}; + for (my $jn=0;$jn<=$counter_cols; $jn++) { + my ($localmin,$localmax)=(0,0); + for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) { + if ($localmin<$Apache::londefdef::table[-1]{'minlen'}[$in][$jn]) { + $localmin=$Apache::londefdef::table[-1]{'minlen'}[$in][$jn]; + } + if ($localmax<$Apache::londefdef::table[-1]{'maxlen'}[$in][$jn]) { + $localmax=$Apache::londefdef::table[-1]{'maxlen'}[$in][$jn]; + } + } + push @min_len, $localmin; + push @max_len, $localmax; + $avg_max = $localmax + $avg_max; + $avg_min = $localmin + $avg_min; + } + # Does not really matter what the average max/min are if there are no cols. + # and this prevents div 0 in that case. + + if ($counter_cols != 0) { + $avg_max = $avg_max/$counter_cols; + $avg_min = $avg_min/$counter_cols; + } + + + # I don't think the below is needed.. but just in case: + + if ($avg_min > $avg_max) { + my $temp = $avg_min; + $avg_min = $avg_max; + $avg_max = $temp; + } + + + for (my $jn=0;$jn<=$counter_cols;$jn++) { + my $localmin=0,; + for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) { + if ($localmin<$Apache::londefdef::table[-1]{'objectlen'}[$in][$jn]) { + $localmin=$Apache::londefdef::table[-1]{'objectlen'}[$in][$jn]; + } + } + if ($max_len[$jn]<$localmin) { + $max_len[$jn]=$localmin; + $Apache::londefdef::table[-1]{'objectsignal'}[$jn]=1; + }#object size is bigger + if ($min_len[$jn]<$localmin) { + $min_len[$jn]=$localmin; + $Apache::londefdef::table[-1]{'objectsignal'}[$jn]=1; + }#object size is bigger + if ($Apache::londefdef::table[-1]{'TeXlen'}[0][$jn]!=0) { + $min_len[$jn]=0; + $max_len[$jn]=0; + } + # Spans seem to be really bothered by max/min = 0. So if we have one + # make it an average joe max/min. + + if ($max_len[$jn] == 0) { + $max_len[$jn] = $avg_max; + } + if ($min_len[$jn] == 0) { + $min_len[$jn] = $avg_min; + } + + } + #final adjustment of column width + my @fwidth=@{$Apache::londefdef::table[-1]{'TeXlen'}[0]};#final width array + my @adjust=(); + #step 1. adjustment by maximum value + my $space_needed=0; + for (my $jn=0;$jn<=$#max_len;$jn++) { + $space_needed=$space_needed+$max_len[$jn]; + } + if ($space_needed<=$available_space) { + + for (my $jn=0;$jn<=$#max_len;$jn++) { + if ($fwidth[$jn]==0) { + $fwidth[$jn]=$max_len[$jn]; + } + } + } else { + #step 2. adjustment by minimum value (estimation) + $space_needed=0; + for (my $jn=0;$jn<=$#min_len;$jn++) { + $space_needed+=$min_len[$jn]; + } + if ($space_needed>$available_space) { + $WARNING=' \textbf{NOT ENOUGH SPACE FOR TABLE} '; + for (my $jn=0;$jn<=$#max_len;$jn++) { + if ($fwidth[$jn]==0) { + $fwidth[$jn]=$min_len[$jn]; + } + } + #check if we have objects which can be scaled + my $how_many_to_scale=0; + my @to_scale=(); + for (my $jn=0;$jn<=$#max_len;$jn++) { + if ($Apache::londefdef::table[-1]{'objectsignal'}[$jn] eq '1') { + $how_many_to_scale++; + push @to_scale, $jn; + } + } + if ($how_many_to_scale>0) { + my $space_to_adjust=($space_needed-$available_space)/$how_many_to_scale; + foreach my $jn (@to_scale) { + for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) { + $Apache::londefdef::table[-1]{'content'}[$in][$jn]=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/; + if ($1 ne '') { + my $current_length=&recalc($1); + $current_length=~/(\d+\.?\d*)/; + $current_length=$current_length-$space_to_adjust; + $Apache::londefdef::table[-1]{'content'}[$in][$jn]=~s/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/width=$current_length mm/; + } + $Apache::londefdef::table[-1]{'content'}[$in][$jn]=~m/\[(\d+\.?\d*)\s*mm\]/; + if ($1 ne '') { + my $current_length=$1; + $current_length=$current_length-$space_to_adjust; + $Apache::londefdef::table[-1]{'content'}[$in][$jn]=~s/\[(\d+\.?\d*)\s*mm\]/\[$current_length mm\]/; + } + } + $fwidth[$jn]=$fwidth[$jn]-$space_to_adjust; + } + } + } else { + #step 3. adjustment over minimal + corrections + my $enlarge_coef=$available_space/$space_needed; + my $acsessive=0; + for (my $jn=0;$jn<=$#min_len;$jn++) { + $adjust[$jn]=$min_len[$jn]*$enlarge_coef; + if ($adjust[$jn]>$max_len[$jn]) { + $fwidth[$jn]=$max_len[$jn]; + $acsessive=$acsessive+$adjust[$jn]-$max_len[$jn]; + $adjust[$jn]=0; + + } + } + if ($acsessive>0) { + #we have an excess of space and can redistribute it + my $notempty_columns=0; + for (my $jn=0;$jn<=$#min_len;$jn++) { + if ($adjust[$jn]!=0) { + $notempty_columns++; + } + } + my $per_column=$acsessive/$notempty_columns; + for (my $jn=0;$jn<=$#min_len;$jn++) { + if ($adjust[$jn]!=0) { + $adjust[$jn]+=$per_column; + $fwidth[$jn]=$adjust[$jn]; + } + } + } else { + for (my $jn=0;$jn<=$#min_len;$jn++) { + $fwidth[$jn]=$adjust[$jn]; + } + } + } + } + # use all available width or specified width as if not specified, + # the specified width gets defaulted to the available width. + + my $current=0; + for (my $i=0;$i<=$#fwidth;$i++) { + $current+=$fwidth[$i]; + } + if ($current == 0) { + $current = $Apache::londefdef::table[-1]{'width'}; + } + my $coef=$Apache::londefdef::table[-1]{'width'}/$current; + for (my $i=0;$i<=$#fwidth;$i++) { + $fwidth[$i]*=$coef; + } + #removing of empty columns if allowed + my $permission=&Apache::lonxml::get_param('TeXDropEmptyColumns',$parstack,$safeeval,undef,0); + if ($permission eq 'yes') { + my @cleaned_table=(); + my @cleaned_header=(); + my $colind=0; + for (my $jn=0;$jn<=$Apache::londefdef::table[-1]{'counter_columns'};$jn++) { + if ($fwidth[$jn]!=0) { + #we need to copy column + for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) { + $cleaned_table[$in][$colind]=$Apache::londefdef::table[-1]{'content'}[$in][$jn]; + $cleaned_header[$colind]=$fwidth[$jn]; + } + $colind++; + } + } + $Apache::londefdef::table[-1]{'content'}=\@cleaned_table; + @fwidth=@cleaned_header; + } + + #construct header of the table my $header_of_table = '{'.$Apache::londefdef::table[-1]{'vvinc'}; - my $in; - for ($in=0;$in<=$Apache::londefdef::table[-1]{'counter_columns'};$in++) { - $header_of_table .= $Apache::londefdef::table[-1]{'columns'}[$in].$Apache::londefdef::table[-1]{'vvinc'}; + for (my $in=0;$in<=$#fwidth;$in++) { + $header_of_table.='p{'.$fwidth[$in].' mm}'.$Apache::londefdef::table[-1]{'vvinc'}; } $header_of_table .= '}'; + #fill the table - for ($in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) { - $output .= $Apache::londefdef::table[-1]{'rowdata'}[$in]; - chop $output; - $output .= ' \\\\ '; - } - #define the length of the table cells - my @lengthforoutput = split(/,/,$Apache::londefdef::table[-1]{'lengthrow'}[0]); - my $how_many_columns = $#lengthforoutput + 1; #total number of columns in the table - my $filled_columns = 0; #number of columns with information about width - my $available_space = ' '; - foreach my $tempo_length (@{ $Apache::londefdef::table[-1]{'lengthrow'} }) { - my @length = split(/,/,$tempo_length); - for (my $ico=0;$ico<=$#lengthforoutput;$ico++) { - $lengthforoutput[$ico] =~ m/(\d*\.?\d*)\s*(\w+)/; - my $old_value = $1; - my $old_unit = $2; - if ($old_unit eq 'cm') { - $old_value = $old_value * 10; - } elsif ($old_unit eq 'in') { - $old_value = $old_value * 25.4; - } elsif ($old_unit eq 'pt') { - $old_value = $old_value * 25.4/72.27; - } elsif ($old_unit eq 'pc') { - $old_value = $old_value * 25.4/6.022; - } - $old_unit = 'mm'; - $length[$ico] =~ m/(\d*\.?\d*)\s*(\w+)/; - my $new_value = $1; - my $new_unit = $2; - if ($new_unit eq 'cm') { - $new_value = $new_value * 10; - } elsif ($old_unit eq 'in') { - $new_value = $new_value * 25.4; - } elsif ($old_unit eq 'pt') { - $new_value = $new_value * 25.4/72.27; - } elsif ($old_unit eq 'pc') { - $new_value = $new_value * 25.4/6.022; - } - $new_unit = 'mm'; - if ($old_value < $new_value) { - $lengthforoutput[$ico] = $new_value.' mm'; + for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) { + my $have_rowspan = 0; + for (my $jn=0;$jn<=$#fwidth;$jn++) { + + #----------------------------------------------------------- + # I think this order of doing things will ensure that + # single rowspan, columspan and combined row/colspans will + # work correctly. LaTeX is delicate here. + # RF. + + # Start a rowspan if necessary: + + my $primary_col_width = $fwidth[$jn]; # Width of primary column. + my $rowspan = $Apache::londefdef::table[-1]{'rowspan'}[$in][$jn]; + my $colspan = $Apache::londefdef::table[-1]{'colspan'}[$in][$jn]; + # + # Do the appropriate magic if this has a colspan + # + + my $border_char = ""; + if ($border) { + $border_char = "|"; + } + my $spanwidth = 0; + if ($colspan > 1) { + for (my $spancol = $jn; $spancol < $jn + $colspan; $spancol++) { + $spanwidth += $fwidth[$spancol]; + } + $output .= '\multicolumn{'. + $colspan + ."}"; + if ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'c') { + $output .= '{'.$border_char.'c'.$border_char.'}{'; + } elsif ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'r') { + $output .= '{'.$border_char.'r'.$border_char.'}{'; + } + else { + $output .= '{'.$border_char."p{$spanwidth mm}".$border_char.'}{'; + } + } else { - $lengthforoutput[$ico] = $old_value.' mm'; + $spanwidth = $primary_col_width; # If no span width will be just colwidth + } + + # Rowspan... if colspan is 1, and there's an alignment we'll need + # to kick in a multicolumn in order to get the alignment spec. + # this must precede the multirow or LaTex gets quite upset. + # Naturally if colspan > 1 we've already done that above ^ + # + my $multirow_aligned = 0; + if ($rowspan > 1) { + if ($colspan == 1) { + if ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'c') { + $output .= '\multicolumn{1}{'.$border_char.'c'.$border_char.'}{'; + $multirow_aligned = 1; + } elsif ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'r') { + $output .= '\multicolumn{1}{'.$border_char.'r'.$border_char.'}{'; + $multirow_aligned = 1; + } + } + $have_rowspan++; + if ($multirow_aligned) { + $output .= '\multirow{'.$rowspan.'}[0]{*}{'; + } else { + $output .= '\multirow{'.$rowspan."}[0]{$spanwidth mm}{"; + } + + $Apache::londefdef::table[-1]{'content'}[$in][$jn] =~ + s{^\s*\\par\s*}{}; + $Apache::londefdef::table[-1]{'content'}[$in][$jn] =~ + s{\s*\\vskip\s*0pt\s*$}{}; + + # + # If we did not throw in a multicolumn to align, then add + # an extra { + # so we close correctly without having to keep additional state + # around + # + if (!$multirow_aligned) { + $output .= '{'; + } + } + if (($rowspan eq '^') || ($rowspan eq '_')) { + $have_rowspan++; + } + #-------------------------------------------------------------- + + + # For right and center alignment of single cells. + # we are going to use a multicolumn with a span of 1 to specify alignment. + # + if ($colspan == 1 && $rowspan == 1) { + if ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'c') { + $output .= '\multicolumn{1}{'.$border_char.'c'.$border_char.'}{'; + } elsif ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'r') { + $output .= '\multicolumn{1}{'.$border_char.'r'.$border_char.'}{'; + } + } + + $output.=$Apache::londefdef::table[-1]{'content'}[$in][$jn]; + + if (($colspan == 1 && $rowspan == 1) && + (($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'c') || + ($Apache::londefdef::table[-1]{'align'}[$in][$jn] eq 'r'))) { + $output .= '}'; + } + + # Close off any open multirow: + + if ($rowspan > 1) { + $output .= '}}'; } + # Close off the colspan... + # + if ($colspan > 1) { + $output .= '}'; + $jn += $colspan-1; # Adjust for number of rows really left. + } + if ($jn!=$#fwidth) {$output.=' '.$Apache::londefdef::table[-1]{'vinc'};} } - } - for (my $ico=0;$ico<=$#lengthforoutput;$ico++) { - if (not $lengthforoutput[$ico]=~m/^\s*0\s*\w*\s*$/) { - $filled_columns++; - $available_space = $available_space.' - '.$lengthforoutput[$ico]; + # If have_rowspan > 0, and borders are on, then + # we need to do more than put an \hline at the bottom of row. + # we need to do the appropriate \cline to ensure that + # the spanned rows don't have \hlines through them. + + if (($Apache::londefdef::table[-1]{'hinc'} =~ /\\hline/) && $have_rowspan) { + $output .= ' \\\\ '; + for (my $jn=0; $jn<=$#fwidth;$jn++) { + my $rowspan = $Apache::londefdef::table[-1]{'rowspan'}[$in][$jn]; + if ($rowspan ne "^") { + if (($rowspan <= 1) || ($rowspan eq '_')) { + my $column = $jn+1; + $output .= '\cline{'.$column.'-'.$column.'} '; + } + } + } + + } else { + $output.=' \\\\ '.$Apache::londefdef::table[-1]{'hinc'}.' '; } } - my $temp_file; - my $filename = "/home/httpd/prtspool/$ENV{'user.name'}_$ENV{'user.domain'}_printout.tbl"; - if (-e $filename) { - $temp_file = Apache::File->new($filename); - my @tbl_file_content = <$temp_file>; - my ($one,$two,$three) = split(/,/,$tbl_file_content[0]); - $how_many_columns+=$one-1; - $filled_columns+=$two; - if($three=~/\S/) {$available_space = $available_space.' - '.$three;} - } else { - $temp_file = Apache::File->new('>>'.$filename); - } - print $temp_file "$how_many_columns,$filled_columns,$available_space\n"; - $output =~ s/\\parbox{TOBECHANGEDONNUMBER}{}/\\parbox{1 mm}{}/g; - $output =~ s/\\parbox{TOBECHANGEDONNUMBER}/\\parbox{\$SpacePerColumn}/g; - my @tagar = @$tagstack; - my $signature = 1; - for (my $ico=0;$ico<$#tagar;$ico++) { - if ($tagar[$ico] eq 'table') { $signature = 0; } - } - if ($signature) { - my $NumberEmptyLength = $how_many_columns - $filled_columns; - my $SpacePerColumn = '(\textwidth '.$available_space.')/'.$NumberEmptyLength; - my $shorthand = ($filled_columns+1)*4; - $output =~ s/\$SpacePerColumn/$SpacePerColumn - $shorthand mm/g; - } - if ($how_many_columns==1) { - #start of block with width correction for one column table - $output=~s/^\s*\\parbox\{([^\}]*)\}/\\parbox\{\\textwidth - 1 cm\}/; - #end of block with width correction for one column table - } - $Apache::londefdef::table[-1]{'output'} .= $header_of_table.$output.$Apache::londefdef::table[-1]{'hinc'}.'\end{tabular}\vskip 0 mm '; - if ($#Apache::londefdef::table > 0) { - $inmemory = $Apache::londefdef::table[-1]{'output'}; + # Note that \newline destroys alignment env's produced by e.g. <div> + # $Apache::londefdef::table[-1]{'output'} .= $header_of_table.$Apache::londefdef::table[-1]{'hinc'}.$output.'\end{tabular}\strut\newline\strut '; + $Apache::londefdef::table[-1]{'output'} .= $header_of_table.$Apache::londefdef::table[-1]{'hinc'}.$output.'\end{tabular}\strut'.'\\\\'."\n".'\strut '; + if ($#Apache::londefdef::table > 0) { + my $inmemory = $Apache::londefdef::table[-1]{'output'}; + # Figure out max/and min width by summing us and then + # apply that to the current column of the table we nest in + # if it's larger than the current width or the current width + # is undefined. + # + my $min_nested_width = 0; + my $max_nested_width = 0; + for (my $col = 0; $col <= $Apache::londefdef::table[-1]{'counter_columns'}; $col++) { + $min_nested_width += $min_len[$col]; + $max_nested_width += $max_len[$col]; + + } + # Fudge in an extra 5 mm for borders etc: + + $min_nested_width += 5; + $max_nested_width += 5; + + my $outer_column = $Apache::londefdef::table[-2]{'counter_columns'}; + my $outer_row = $Apache::londefdef::table[-2]{'row_number'}; + if ($min_nested_width > $Apache::londefdef::table[-2]{'minlen'}[$outer_row][$outer_column]) { + $Apache::londefdef::table[-2]{'minlen'}[$outer_row][$outer_column] = $min_nested_width; + } + if ($max_nested_width > $Apache::londefdef::table[-2]{'maxlen'}[$outer_row][$outer_column]) { + $Apache::londefdef::table[-2]{'maxlen'}[$outer_row][$outer_column] = $max_nested_width; + } + pop @Apache::londefdef::table; - $Apache::londefdef::table[-1]{'rowdata'}[$Apache::londefdef::table[-1]{'row_number'}] .= $inmemory + push @{$Apache::londefdef::table[-1]{'include'}}, $inmemory; } else { - $currentstring = $Apache::londefdef::table[-1]{'output'}; - $currentstring =~ s/\\\\\s+\\\\/\\\\/g; + $currentstring .= $Apache::londefdef::table[-1]{'output'}; pop @Apache::londefdef::table; - if (-e $filename) { - unlink $filename; - } + undef @Apache::londefdef::table; + } } + &enable_para(); + } } return $currentstring; } -#-- <tr> tag +#-- <tr> tag (end tag optional) sub start_tr { my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[4]; } elsif ($target eq 'tex') { + + my $align = &Apache::lonxml::get_param('align', $parstack, $safeeval, undef, 1); + $Apache::londefdef::table[-1]->start_row(); + + if ($align ne '') { + $Apache::londefdef::table[-1]->configure_row({default_halign => $align}); + } + + #--------------------------------------------------------------- + # Old table code. + #--------------------------------------------------------------- + + if (0) { $Apache::londefdef::table[-1]{'row_number'}++; - my $alignchar = substr(&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1),0,1); + my $alignchar=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1); if ($alignchar ne '') { - push @ {$Apache::londefdef::table[-1]{'rows'} }, $alignchar; + push @ {$Apache::londefdef::table[-1]{'rows'} },substr($alignchar,0,1); } else { push @ {$Apache::londefdef::table[-1]{'rows'} }, 'l'; } push ( @{ $Apache::londefdef::table[-1]{'rowdata'} }, $Apache::londefdef::table[-1]{'hinc'}); + # + # Need to save the number of table columns to preserve the max # columns. + # + $Apache::londefdef::table[-1]{'prior_columns'} = $Apache::londefdef::table[-1]{'counter_columns'}; $Apache::londefdef::table[-1]{'counter_columns'} = -1; - $Apache::londefdef::table[-1]{'length'} = ''; + push @ {$Apache::londefdef::table[-1]{'TeXlen'}}, []; + push @ {$Apache::londefdef::table[-1]{'objectlen'}}, []; + push @ {$Apache::londefdef::table[-1]{'minlen'}}, []; + push @ {$Apache::londefdef::table[-1]{'maxlen'}}, []; + push @ {$Apache::londefdef::table[-1]{'content'}}, []; + } } return $currentstring; } sub end_tr { - my ($target,$token) = @_; - my $currentstring = ''; - if ($target eq 'web') { - $currentstring = $token->[2]; + my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; + my $currentstring = &end_p(); # Close any pending <p> in the row. + if ($target eq 'web' || $target eq 'webgrade') { + $currentstring .= $token->[2]; } elsif ($target eq 'tex') { - push @{ $Apache::londefdef::table[-1]{'lengthrow'} },$Apache::londefdef::table[-1]{'length'}; + + # In case the user is missing a </td> or </th> tag: + + if ($Apache::londefdef::TD_redirection) { + &end_td_tex($parstack,$parser,$safeeval); + } + $Apache::londefdef::table[-1]->end_row(); + + #----------------------------------------------- + # Old table code + #----------------------------------------------- + + if (0) { + if ($Apache::londefdef::TD_redirection) { + &end_td_tex($parstack,$parser,$safeeval); + } + # Counter columns must be the maximum number of columns seen + # in the table so far so: + if ($Apache::londefdef::table[-1]{'prior_columns'} > $Apache::londefdef::table[-1]{'counter_columns'}) { + $Apache::londefdef::table[-1]{'counter_columns'} = $Apache::londefdef::table[-1]{'prior_columns'}; + } + } + } return $currentstring; } -#-- <td> tag +#-- <td> tag (end tag optional) sub start_td { my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $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(); + $Apache::londefdef::TD_redirection = 1; + &tag_check('tr','td',$tagstack,$parstack,$parser,$safeeval); } return $currentstring; } - + +sub tag_check { + my ($good_tag,$bad_tag,$tagstack,$parstack,$parser,$safeeval) = @_; + my @ar=@$parstack; + for (my $i=$#ar-1;$i>=0;$i--) { + if (lc($$tagstack[$i]) eq $good_tag) { + &start_td_tex($parstack,$parser,$safeeval); + last; + } elsif (lc($$tagstack[$i]) eq $bad_tag) { + splice @ar, $i+1; + &end_td_tex(\@ar,$parser,$safeeval); + &start_td_tex($parstack,$parser,$safeeval); + last; + } + } + return ''; +} + +# +# Factor out cell configuration hash generation: +# + +sub cell_config_hash { + my ($align, $rowspan, $colspan) = @_; + my %config; + if ($align ne '') { + $config{'halign'} = $align; + } + if ($colspan ne "") { + $config{'colspan'} = $colspan; + } + if ($rowspan ne '') { + $config{'rowspan'} = $rowspan; + } + return \%config; +} + +sub start_td_tex { + my ($parstack,$parser,$safeeval) = @_; + + # At this stage, an empty cell is created with the + # appropriate rowspan/colspan and alignment + # attributes, but empty of text. end_td_tex will + # fetch the contents from the recursive parse and + # fill the cell with them: + my $align = &Apache::lonxml::get_param('align', $parstack, $safeeval, undef, 1); + my $rowspan = &Apache::lonxml::get_param('rowspan', $parstack, $safeeval, undef, 1); + my $colspan = &Apache::lonxml::get_param('colspan', $parstack, $safeeval, undef, 1); + + my $config = &cell_config_hash($align, $rowspan, $colspan); + + my $table = $Apache::londefdef::table[-1]; + $table->add_cell('', $config); + + + #------------------------------------------------ + # Old table code. + #------------------------------------------------ + + if (0) { + + my $alignchar = substr(&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1),0,1); + if ($alignchar eq '') { + $alignchar = $Apache::londefdef::table[-1]{'rows'}[-1]; + } + push @{ $Apache::londefdef::table[-1]{'align'}[$Apache::londefdef::table[-1]{'row_number'}] }, $alignchar; + $Apache::londefdef::table[-1]{'counter_columns'}++; + my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0); + if (defined $TeXwidth) { + my $current_length=&recalc($TeXwidth); + $current_length=~/(\d+\.?\d*)/; + push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$1; + } + } + &Apache::lonxml::startredirection(); + return ''; +} + +sub end_td_tex { + + my $text = &Apache::lonxml::endredirection(); + my $table = $Apache::londefdef::table[-1]; + $table->append_cell_text($text); + + #------------------------------------------------- + # Old table code + #------------------------------------------------- + + if (0) { + my ($parstack,$parser,$safeeval) = @_; + my $current_row = $Apache::londefdef::table[-1]{'row_number'}; + my $current_column = $Apache::londefdef::table[-1]{'counter_columns'}; + my $data = &Apache::lonxml::endredirection(); + + # The rowspan array of the table indicates which cells are part of a span. + # n indicates the start of a span set of n rows. + # ^ indicates a cell that continues a span set. + # _ indicates the cell is at the bottom of a span set. + # If this and subsequent cells are part of a rowspan, we must + # push along the row until we find one that is not. + + while ((defined $Apache::londefdef::table[-1]{'rowspan'}[$current_row] [$current_column]) + && ($Apache::londefdef::table[-1]{'rowspan'}[$current_row][$current_column] =~ /[\^\_]/)) { + # Part of a span. + push @ {$Apache::londefdef::table[-1]{'content'}[-1]}, ''; + $current_column++; + } + $Apache::londefdef::table[-1]{'counter_columns'} = $current_column; + + + # Get the column and row spans. + # Colspan can be done via \multicolumn if I can figure out the data structs. + + my $colspan = &Apache::lonxml::get_param('colspan', $parstack, $safeeval, undef, 0); + if (!$colspan) { + $colspan = 1; + } + + my $rowspan = &Apache::lonxml::get_param('rowspan', $parstack, $safeeval, undef, 0); + if (!$rowspan) { + $rowspan = 1; + } + + + + for (my $c = 0; $c < $colspan; $c++) { + $Apache::londefdef::table[-1]{'rowspan'}[$current_row][$current_column+$c] = $rowspan; + for (my $i = 1; $i < $rowspan; $i++) { + $Apache::londefdef::table[-1]{'rowspan'}[$current_row+$i][$current_column+$c] = '^'; + if ($i == ($rowspan-1)) { + $Apache::londefdef::table[-1]{'rowspan'}[$current_row+$i][$current_column+$c] = '_'; + } + } + } + + my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0); + if (defined $TeXwidth) { + for (my $c = 0; $c < $colspan; $c++) { + push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0'; + push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0'; + push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0'; + } + } else { + if (($data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) or ($data=~m/\[(\d+\.?\d*)\s*mm\]/)) { + my $garbage_data=$data; + my $fwidth=0; + while ($garbage_data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) { + my $current_length=&recalc($1); + $current_length=~/(\d+\.?\d*)/; + if ($fwidth<$1) {$fwidth=$1;} + $garbage_data=~s/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)//; + } + while ($garbage_data=~m/\[(\d+\.?\d*)\s*mm\]/) { + my $current_length=$1; + if ($fwidth<$current_length) {$fwidth=$current_length;} + $garbage_data=~s/\[(\d+\.?\d*)\s*mm\]//; + } + for (my $c = 0; $c < $colspan; $c++) { + push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0'; + push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$fwidth; + push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0'; + push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0'; + } + } elsif ($data=~/\\parbox\{\s*\d+\.?\d*\s*(mm|cm|in|pc|pt)*\s*\}/ or $data=~/\\epsfxsize\s*=\s*\d+\.?\d*\s*(mm|cm|in|pc|pt)*/) { + my $garbage_data=$data; + my $fwidth=0; + while ($garbage_data=~/\\parbox\{\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)\s*\}/) { + my $current_length=&recalc($1); + $current_length=~/(\d+\.?\d*)/; + if ($fwidth<$1) {$fwidth=$1;} + $garbage_data=~s/\\parbox\{\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)//; + } + while ($garbage_data=~/\\epsfxsize\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) { + my $current_length=&recalc($1); + $current_length=~/(\d+\.?\d*)/; + if ($fwidth<$1) {$fwidth=$1;} + $garbage_data=~s/\\epsfxsize\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)//; + } + for (my $c = 0; $c < $colspan; $c++) { + push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0'; + push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$fwidth; + push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0'; + push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0'; + } + $data=~s/\\\\\s*$//; + } else { + $data=~s/^\s+(\S.*)/$1/; + $data=~s/(.*\S)\s+$/$1/; + $data=~s/(\s)+/$1/; + my ($current_length,$min_length)=(0,0); + if ($data=~/\\vskip/) { + my $newdata=$data; + $newdata=~s/\\vskip \d*\.?\d*\s*mm/THISISJUSTTEMPORARYSEPARATOR/g; + my @newdata=split(/THISISJUSTTEMPORARYSEPARATOR/,$newdata); + foreach my $elementdata (@newdata) { + my $lengthnewdata=2.5*&LATEX_length($elementdata); + if ($lengthnewdata>$current_length) {$current_length=$lengthnewdata;} + my @words=split(/ /,$elementdata); + foreach my $word (@words) { + my $lengthword=2.5*&LATEX_length($word); + if ($min_length<$lengthword) {$min_length=$lengthword;} + } + } + } else { + $current_length=2.5*&LATEX_length($data); + my @words=split(/ /,$data); + foreach my $word (@words) { + my $lengthword=2*&LATEX_length($word); + if ($min_length<$lengthword) {$min_length=$lengthword;} + } + } + for (my $c = 0; $c < $colspan; $c++) { + push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0'; + push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0'; + push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$current_length; + push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$min_length; + } + } + } + # Substitute all of the tables nested in this cell in their appropriate places. + + + my $nested_count = $#{$Apache::londefdef::table[-1]{'include'}}; # This one is constant... + for (my $in=0; $in<=$nested_count; $in++) { + my $nested = shift @{$Apache::londefdef::table[-1]{'include'}}; + $nested =~ s/\\end\{tabular\}\\strut\\\\/\\end\{tabular\}/; + # $data=~s/\\keephidden\{NEW TABLE ENTRY\}/$Apache::londefdef::table[-1]{'include'}[$in]/; + $data =~ s/\\keephidden\{NEW TABLE ENTRY\}/$nested/; + + } + # Should be be killing off the 'include' elements as they're used up? + + push @ {$Apache::londefdef::table[-1]{'content'}[-1] },$data; + + + + + # the colspan array will indicate how many columns will be spanned by this + # cell..this requires that counter_columns also be adjusted accordingly + # so that the next bunch of text goes in the right cell. Note that since + # counter_columns is incremented in the start_td_tex, we adjust by colspan-1. + # + + $Apache::londefdef::table[-1]{'counter_columns'} += $colspan -1; + for (my $i = 0; $i < ($colspan -1); $i++) { + push @ {$Apache::londefdef::table[-1]{'content'}[-1] },''; + } + for (my $r = 0; $r < $rowspan; $r++) { + $Apache::londefdef::table[-1]{'colspan'}[$current_row+$r][$current_column] = $colspan; + # Put empty text in spanned cols. + + } + + } + + return ''; +} + sub end_td { - my ($target,$token) = @_; + my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; my $currentstring = ''; - my $tempolen = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[2]; } elsif ($target eq 'tex') { - my $current_row = $Apache::londefdef::table[-1]{'row_number'}; - my $data=&Apache::lonxml::endredirection(); - if ($data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt))/) { - $Apache::londefdef::table[-1]{'length'} .= $1.','; - $tempolen = $1; - } else { - if (length($data)<5) { - $Apache::londefdef::table[-1]{'length'} .= '0 mm,'; - $tempolen = '6 mm'; - } else { - $Apache::londefdef::table[-1]{'length'} .= '0 mm,'; - $tempolen = 'TOBECHANGEDONNUMBER'; - } - } - @{ $Apache::londefdef::table[-1]{'rowdata'} }[$current_row] .= '\parbox{'.$tempolen.'}{'.$data.'} '.$Apache::londefdef::table[-1]{'vinc'}; + $Apache::londefdef::TD_redirection =0; + &end_td_tex($parstack,$parser,$safeeval); } return $currentstring; } -#-- <th> tag +#-- <th> tag (end tag optional) sub start_th { my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $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(); - ; + $Apache::londefdef::TD_redirection = 1; + &tagg_check('tr','th',$tagstack,$parstack,$parser,$safeeval); } return $currentstring; +} + +sub tagg_check { + my ($good_tag,$bad_tag,$tagstack,$parstack,$parser,$safeeval) = @_; + my @ar=@$parstack; + for (my $i=$#ar-1;$i>=0;$i--) { + if (lc($$tagstack[$i]) eq $good_tag) { + &start_th_tex($parstack,$parser,$safeeval); + last; + } elsif (lc($$tagstack[$i]) eq $bad_tag) { + splice @ar, $i+1; + &end_th_tex(\@ar,$parser,$safeeval); + &start_th_tex($parstack,$parser,$safeeval); + last; + } + } + return ''; } - + +sub start_th_tex { + my ($parstack,$parser,$safeeval) = @_; + + my $alignment = &Apache::lonxml::get_param('align', $parstack, $safeeval, undef,1); + my $rowspan = &Apache::lonxml::get_param('rowspan', $parstack, $safeeval, undef, 1); + my $colspan = &Apache::lonxml::get_param('colspan', $parstack, $safeeval, undef, 1); + + my $config = cell_config_hash($alignment, $rowspan, $colspan); + my $table = $Apache::londefdef::table[-1]; + $table->add_cell('\textbf{', $config); + + #------------------------------------------------------------------------------------- + # + # Old table code. + # + #-------------------------------------------------------------------------------------- + + if (0) { + + + my $alignchar = substr(&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1),0,1); + if ($alignchar eq '') { + $alignchar = $Apache::londefdef::table[-1]{'rows'}[-1]; + } + push @{ $Apache::londefdef::table[-1]{'align'}[$Apache::londefdef::table[-1]{'row_number'}] }, $alignchar; + $Apache::londefdef::table[-1]{'counter_columns'}++; + my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0); + if (defined $TeXwidth) { + my $current_length=&recalc($TeXwidth); + $current_length=~/(\d+\.?\d*)/; + push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$1; + } + } + + # Accept xml until the </th> tag. + + &Apache::lonxml::startredirection(); + return ''; +} + +sub end_th_tex { + my ($parstack,$parser,$safeeval) = @_; + + my $table = $Apache::londefdef::table[-1]; + my $text = &Apache::lonxml::endredirection(); + $table->append_cell_text($text.'}'); + + #----------------------------------------------------------------------------- + # Old table code: + #----------------------------------------------------------------------------- + + if (0) { + 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 $TeXwidth) { + push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0'; + push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0'; + push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0'; + } else { + if (($data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) or ($data=~m/\[(\d+\.?\d*)\s*mm\]/)) { + my $garbage_data=$data; + my $fwidth=0; + while ($garbage_data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) { + my $current_length=&recalc($1); + $current_length=~/(\d+\.?\d*)/; + if ($fwidth<$1) {$fwidth=$1;} + $garbage_data=~s/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)//; + } + while ($garbage_data=~m/\[(\d+\.?\d*)\s*mm\]/) { + my $current_length=$1; + if ($fwidth<$current_length) {$fwidth=$current_length;} + $garbage_data=~s/\[(\d+\.?\d*)\s*mm\]//; + } + push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0'; + push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$fwidth; + push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0'; + push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0'; + } else { + $data=~s/^\s+(\S.*)/$1/; + $data=~s/(.*\S)\s+$/$1/; + $data=~s/(\s)+/$1/; + my ($current_length,$min_length)=(0,0); + if ($data=~/\\vskip/) { + my $newdata=$data; + $newdata=~s/\\vskip \d*\.?\d*\s*mm/THISISJUSTTEMPORARYSEPARATOR/g; + my @newdata=split(/THISISJUSTTEMPORARYSEPARATOR/,$newdata); + foreach my $elementdata (@newdata) { + my $lengthnewdata=2.5*&LATEX_length($elementdata); + if ($lengthnewdata>$current_length) {$current_length=$lengthnewdata;} + my @words=split(/ /,$elementdata); + foreach my $word (@words) { + my $lengthword=2.5*&LATEX_length($word); + if ($min_length<$lengthword) {$min_length=$lengthword;} + } + } + } else { + $current_length=2.5*&LATEX_length($data); + my @words=split(/ /,$data); + foreach my $word (@words) { + my $lengthword=2*&LATEX_length($word); + if ($min_length<$lengthword) {$min_length=$lengthword;} + } + } + push @ {$Apache::londefdef::table[-1]{'TeXlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0'; + push @ {$Apache::londefdef::table[-1]{'objectlen'}[$Apache::londefdef::table[-1]{'row_number'}] },'0'; + push @ {$Apache::londefdef::table[-1]{'maxlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$current_length; + push @ {$Apache::londefdef::table[-1]{'minlen'}[$Apache::londefdef::table[-1]{'row_number'}] },$min_length; + } + } + for (my $in=0; $in<=$#{$Apache::londefdef::table[-1]{'include'}};$in++) { + $data=~s/\\keephidden\{NEW TABLE ENTRY\}/$Apache::londefdef::table[-1]{'include'}[$in]/; + } + #make data bold + $data='\textbf{'.$data.'}'; + push @ {$Apache::londefdef::table[-1]{'content'}[-1] },$data; + } + return''; +} + sub end_th { - my ($target,$token) = @_; - my $currentstring = ''; - if ($target eq 'web') { - $currentstring = $token->[2]; + my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; + my $currentstring = &end_p(); # Close any open <p> in the row. + if ($target eq 'web' || $target eq 'webgrade') { + $currentstring .= $token->[2]; } elsif ($target eq 'tex') { - my $current_row = $Apache::londefdef::table[-1]{'row_number'}; - my $data=&Apache::lonxml::endredirection(); - if ($data=~m/width\s*=\s*(\d+\.*\d*\s*(mm|cm))/) { - $Apache::londefdef::table[-1]{'length'} .= $1.','; - } else { - $Apache::londefdef::table[-1]{'length'} .= '0 mm,'; - } - @{ $Apache::londefdef::table[-1]{'rowdata'} }[$current_row] .= '\parbox{'.$1.'}{\textbf{'.$data.'}} '.$Apache::londefdef::table[-1]{'vinc'}; + $Apache::londefdef::TD_redirection =0; + &end_th_tex($parstack,$parser,$safeeval); } return $currentstring; } - -#-- <img> tag + +#-- <img> tag (end tag forbidden) +# +# Render the <IMG> tag. +# <IMG> has the following attributes (in addition to the +# standard HTML ones: +# TeXwrap - Governs how the tex target will try to wrap text around +# horizontally aligned images. +# TeXwidth - The width of the image when rendered for print (mm). +# TeXheight - The height of the image when rendered for print (mm) +# (Note there seems to also be support for this as a % of page size) +# sub start_img { - my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; + my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_; my $src = &Apache::lonxml::get_param('src',$parstack,$safeeval, undef,1); - $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=$src; + if (! $src && + ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex') + ) { + my $inside = &Apache::lonxml::get_all_text("/img",$parser,$style); + return ''; + } + &Apache::lonxml::extlink($src); my $currentstring = ''; - my $width_param = ''; - my $height_param = ''; my $scaling = .3; - - if ($target eq 'web') { - if ($ENV{'browser.imagesuppress'} ne 'on') { - $currentstring = $token->[4]; + + # Render unto browsers that which are the browser's... + + if ($target eq 'web' || $target eq 'webgrade') { + if ($env{'browser.imagesuppress'} ne 'on') { + my $enc = ('yes' eq + lc(&Apache::lonxml::get_param('encrypturl',$parstack, + $safeeval))); + $currentstring.=&Apache::lonenc::encrypt_ref($token,{'src'=>$src}, + $enc); } else { - my $alttag= &Apache::lonxml::get_param - ('alt',$parstack,$safeeval,undef,1); - unless ($alttag) { - $alttag=&Apache::lonmeta::alttag - ($Apache::lonxml::pwd[-1],$src); + my $alttag = &Apache::lonxml::get_param('alt',$parstack,$safeeval, + undef,1); + if (!$alttag) { + $alttag = &Apache::lonmeta::alttag($Apache::lonxml::pwd[-1], + $src); } - $currentstring='[IMAGE: '.$alttag.']'; + $currentstring.='[IMAGE: '.$alttag.']'; } + + # and render unto TeX that which is LaTeX + } elsif ($target eq 'tex') { + # + # The alignment will require some superstructure to be put around + # the \includegraphics stuff. At present we can only partially + # simulate the alignments offered by html. + # + # + my $align = lc(&Apache::lonxml::get_param('align', + $parstack, + $safeeval, + undef,1)); + if(!$align) { + $align = "bottom"; # This is html's default so it's ours too. + } + # + &Apache::lonxml::debug("Alignemnt = $align"); + # LaTeX's image/text wrapping is really bad since it wants to + # make figures float. + # The user has the optional parameter (applicable only to l/r + # alignment to use the picins/parpic directive to get wrapped text + # this is also imperfect.. that's why we give them a choice... + # so they can't yell at us for our choice. + # + my $latex_rendering = &Apache::lonxml::get_param('TeXwrap', + $parstack, + $safeeval, + undef,0); + # &Apache::lonxml::debug("LaTeX rendering = $latex_rendering"); + if(!$latex_rendering) { + $latex_rendering = "texwrap"; + } + # using texwrap inside a table does not work. So, if after all of this, + # texwrap is on, we turn it off if we detect we're in a table: + # + if (($latex_rendering eq 'texwrap') && &is_inside_of($tagstack, "table")) { + $latex_rendering = 'parpic'; + } + + # &Apache::lonxml::debug("LaTeX rendering = $latex_rendering image file: $src"); + + #if original bmp/gif/jpg/png file exist do following: + my $origsrc=$src; + my ($path,$file) = &get_eps_image($src); + # &Apache::lonnet::logthis("Image source: $src result: $path $file"); $src=&Apache::lonnet::filelocation($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; - } - 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.'} '; - } - } + &Apache::lonxml::debug("path = $path file = $file src = $src"); + if (-e $src) { + &Apache::lonxml::debug("$src exists"); + my ($height_param,$width_param)= + &image_size($origsrc,0.3,$parstack,$safeeval); + my $size; + if ($width_param) { $size.='width='.$width_param.' mm,'; } + if ($height_param) { $size.='height='.$height_param.' mm]'; } + # Default size if not able to extract that (e.g. eps image). + + # &Apache::lonnet::logthis("Size = $size"); + + $size='['.$size; + $size=~s/,$/]/; + $currentstring .= '\graphicspath{{'.$path.'}}' + .'\includegraphics'.$size.'{'.$file.'} '; + my $closure; + ($currentstring, $closure) = &align_latex_image($align, + $latex_rendering, + $currentstring, + $width_param, + $height_param); + $currentstring .= $closure; + } else { + &Apache::lonxml::debug("$src does not exist"); #original image file doesn't exist so check the alt attribute my $alt = &Apache::lonxml::get_param('alt',$parstack,$safeeval,undef,1); @@ -2028,20 +3246,91 @@ sub start_img { $alt=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1],$src); } - if ($alt) { - $currentstring .= ' '.$alt.' '; - } else { - #<allow> tag will care about replication + if ($alt) { $currentstring .= ' '.$alt.' '; } + } + + # And here's where the semi-quote breaks down: allow the user + # to edit the beast as well by rendering the problem for edit: + } elsif ($target eq 'edit') { + my $only = join(',',&Apache::loncommon::filecategorytypes('Pictures')); + $currentstring .=&Apache::edit::tag_start($target,$token); + $currentstring .=&Apache::edit::text_arg('Image Url:','src',$token,70). + &Apache::edit::browse('src',undef,'alt',$only).' '. + &Apache::edit::search('src',undef,'alt').'<br />'; + $currentstring .=&Apache::edit::text_arg('Description:','alt',$token,70).'<br />'; + $currentstring .=&Apache::edit::text_arg('width (pixel):','width',$token,5); + $currentstring .=&Apache::edit::text_arg('height (pixel):','height',$token,5).'<br />'; + $currentstring .=&Apache::edit::text_arg('TeXwidth (mm):','TeXwidth',$token,5); + $currentstring .=&Apache::edit::text_arg('TeXheight (mm):','TeXheight',$token,5); + $currentstring .=&Apache::edit::select_arg('Alignment:','align', + ['','bottom','middle','top','left','right'],$token,5); + $currentstring .=&Apache::edit::select_arg('TeXwrap:', 'TeXwrap', + ['', 'none','parbox', 'parpic', 'wrapfigure'], $token, 2); + $currentstring .=&Apache::edit::select_arg('Encrypt URL:','encrypturl', + ['no','yes'], $token, 2); + $currentstring .=&Apache::edit::end_row().&Apache::edit::start_spanning_row(); + my $src= &Apache::lonxml::get_param('src',$parstack,$safeeval); + my $alt= &Apache::lonxml::get_param('alt',$parstack,$safeeval); + my $width= &Apache::lonxml::get_param('width',$parstack,$safeeval); + my $height= &Apache::lonxml::get_param('height',$parstack,$safeeval); + + if ($token->[2]{'src'}=~/\$/) { + $currentstring.='Variable image source'; + } else { + $currentstring .= '<img src="'.$src.'" alt="'.$alt.'" '; + if ($width) { $currentstring.=' width="'.$width.'" '; } + if ($height) { $currentstring.=' height="'.$height.'" '; } + $currentstring .= ' />'; + } + } elsif ($target eq 'modified') { + my ($osrc,$owidth,$oheight)= + ($token->[2]{'src'},$token->[2]{'width'},$token->[2]{'height'}); + my $ctag=&Apache::edit::get_new_args($token,$parstack, + $safeeval,'src','alt','align', + 'TeXwidth','TeXheight', 'TeXwrap', + 'width','height','encrypturl'); + my ($nsrc,$nwidth,$nheight)= + ($token->[2]{'src'},$token->[2]{'width'},$token->[2]{'height'}); + my $loc=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$nsrc); + &image_replication($loc); + my ($iwidth,$iheight); + if (-e $loc) { + my $image = Image::Magick->new; + $image->Read($loc); + ($iwidth, $iheight) = ($image->Get('width'), + $image->Get('height')); + } + if ($osrc ne $nsrc || (!$nwidth && !$nheight)) { + # changed image or no size specified, + # if they didn't explicitly change the + # width or height use the ones from the image + if ($iwidth && $iheight) { + if ($owidth == $nwidth || (!$nwidth && !$nheight)) { + $token->[2]{'width'} = $iwidth;$ctag=1; + } + if ($oheight == $nheight || (!$nwidth && !$nheight)) { + $token->[2]{'height'}=$iheight;$ctag=1; + } } } + my ($cwidth,$cheight)=($token->[2]{'width'},$token->[2]{'height'}); + # if we don't have a width or height + if ($iwidth && $cwidth && !$cheight) { + $token->[2]{'height'}=int(($cwidth/$iwidth)*$iheight);$ctag=1; + } + if ($iheight && $cheight && !$cwidth) { + $token->[2]{'width'}=int(($cheight/$iheight)*$iwidth);$ctag=1; + } + if ($ctag) {$currentstring=&Apache::edit::rebuild_tag($token);} } + return $currentstring; } sub end_img { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[2]; } elsif ($target eq 'tex') { $currentstring = ''; @@ -2049,21 +3338,22 @@ sub end_img { return $currentstring; } -#-- <applet> tag +#-- <applet> tag (end tag required) sub start_applet { my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; my $code=&Apache::lonxml::get_param('code',$parstack,$safeeval,undef,1); - $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=$code; - + &Apache::lonxml::extlink($code); my $archive=&Apache::lonxml::get_param('archive',$parstack,$safeeval, undef,1); - $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=$archive; - + &Apache::lonxml::extlink($archive); my $currentstring = ''; - if ($target eq 'web') { - if ($ENV{'browser.appletsuppress'} ne 'on') { - $currentstring = $token->[4]; + if ($target eq 'web' || $target eq 'webgrade') { + if ($env{'browser.appletsuppress'} ne 'on') { + $currentstring = &Apache::lonenc::encrypt_ref($token, + {'code'=>$code, + 'archive'=>$archive} + ); } else { my $alttag= &Apache::lonxml::get_param('alt',$parstack, $safeeval,undef,1); @@ -2074,7 +3364,50 @@ sub start_applet { $currentstring='[APPLET: '.$alttag.']'; } } elsif ($target eq 'tex') { - $currentstring = " \\begin{figure} "; + # Turn off some stuff we can't be inside thank you LaTeX + + + my $restart_sub = 0; + my $restart_sup = 0; + + # Since <sub> and <sup> are simple tags it's ok to turn off/on + # using the start_ stop_ functions.. those tags only care about + # $target. + + if (&is_inside_of($tagstack, "sub")) { + $restart_sub = 1; + $currentstring .= &end_sub($target, $token, $tagstack, + $parstack, $parser, $safeeval); + } + if (&is_inside_of($tagstack, "sup")) { + $restart_sup = 1; + $currentstring .= &end_sup($target, $token, $tagstack, + $parstack, $parser, $safeeval); + } + + # Now process the applet; just replace it with its alt attribute. + + my $alttag= &Apache::lonxml::get_param('alt',$parstack, + $safeeval,undef,1); + unless ($alttag) { + my $code=&Apache::lonxml::get_param('code',$parstack,$safeeval, + undef,1); + $alttag=&Apache::lonmeta::alttag($Apache::lonxml::pwd[-1], + $code); + } + $currentstring.='\begin{center} \fbox{Java Applet: '.$alttag. + '.}\end{center}'; + + # Turn stuff back on that we can't be inside of. + + if ($restart_sub) { + $currentstring .= &start_sub($target, $token, $tagstack, + $parstack, $parser, $safeeval); + } + if ($restart_sup) { + $currentstring .= &start_sup($target, $token, $tagstack, + $parstack, $parser, $safeeval); + } } return $currentstring; } @@ -2082,23 +3415,22 @@ sub start_applet { sub end_applet { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[2]; } elsif ($target eq 'tex') { - $currentstring = " \\end{figure}"; } return $currentstring; } -#-- <embed> tag +#-- <embed> tag (end tag optional/required) sub start_embed { my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; my $src=&Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1); - $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=$src; + &Apache::lonxml::extlink($src); my $currentstring = ''; - if ($target eq 'web') { - if ($ENV{'browser.embedsuppress'} ne 'on') { - $currentstring = $token->[4]; + if ($target eq 'web' || $target eq 'webgrade') { + if ($env{'browser.embedsuppress'} ne 'on') { + $currentstring=&Apache::lonenc::encrypt_ref($token,{'src'=>$src}); } else { my $alttag=&Apache::lonxml::get_param ('alt',$parstack,$safeeval,undef,1); @@ -2108,7 +3440,6 @@ sub start_embed { $currentstring='[EMBED: '.$alttag.']'; } } elsif ($target eq 'tex') { - $currentstring = " \\begin{figure} "; } return $currentstring; } @@ -2116,29 +3447,38 @@ sub start_embed { sub end_embed { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[2]; - } elsif ($target eq 'tex') { - $currentstring = " \\end{figure}"; + } elsif ($target eq 'tex') { } return $currentstring; } -#-- <param> tag +#-- <param> tag (end tag forbidden) sub start_param { my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; - if (&Apache::lonxml::get_param - ('name',$parstack,$safeeval,undef,1)=~/^cabbase$/i) { - $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]= - &Apache::lonxml::get_param('value',$parstack,$safeeval,undef,1); - } - $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]= - &Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1); + if (&Apache::lonxml::get_param('name',$parstack, + $safeeval,undef,1)=~/^cabbase$/i) { + my $value=&Apache::lonxml::get_param('value',$parstack, + $safeeval,undef,1); + &Apache::lonxml::extlink($value); + } + + my $src = &Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1); + &Apache::lonxml::extlink($src); my $currentstring = ''; - if ($target eq 'web') { - $currentstring = $token->[4]; + if ($target eq 'web' || $target eq 'webgrade') { + my %toconvert; + my $src=&Apache::lonxml::get_param('src',$parstack,$safeeval,undef,1); + if ($src) { $toconvert{'src'}= $src; } + my $name=&Apache::lonxml::get_param('name',$parstack,$safeeval, + undef,1); + if ($name=~/^cabbase$/i) { + $toconvert{'value'}=&Apache::lonxml::get_param('value',$parstack, + $safeeval,undef,1); + } + $currentstring = &Apache::lonenc::encrypt_ref($token,\%toconvert); } elsif ($target eq 'tex') { - $currentstring = " \\begin{figure} "; } return $currentstring; } @@ -2146,10 +3486,9 @@ sub start_param { sub end_param { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[2]; } elsif ($target eq 'tex') { - $currentstring = " \\end{figure}"; } return $currentstring; } @@ -2158,9 +3497,9 @@ sub end_param { sub start_allow { my ($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]=$src; - &image_replication($src); + &Apache::lonxml::extlink($src); + + if ($target eq 'tex') { &image_replication($src); } my $result; if ($target eq 'edit') { $result .=&Apache::edit::tag_start($target,$token); @@ -2180,16 +3519,20 @@ sub end_allow { return ''; } -#-- Frames +#-- Frames (end tag required) +#-- <frameset> sub start_frameset { my ($target,$token) = @_; - my $currentstring = ''; - if ($target eq 'web') { - if (!$Apache::lonxml::registered) { - $currentstring.='<head>'. - &Apache::lonmenu::registerurl(undef,$target).'</head>'; - } - $currentstring .= $token->[4]; + my $currentstring = ''; # Close any pending para. + if ($target eq 'web' || $target eq 'webgrade') { + $currentstring = + &Apache::loncommon::start_page($Apache::londefdef::title, + $Apache::londefdef::head, + {'add_entries' => $token->[2], +# 'no_title' => 1, + 'force_register' => 1, + 'frameset' => 1,}); + } return $currentstring; } @@ -2197,20 +3540,44 @@ sub start_frameset { sub end_frameset { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[2]; } return $currentstring; } -#-- <pre> -sub start_pre { +#-- <xmp> (end tag required) +sub start_xmp { + my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; + my $currentstring = ''; + if ($target eq 'web' || $target eq 'webgrade') { + $currentstring .= $token->[4]; + } elsif ($target eq 'tex') { + $currentstring .= '\begin{verbatim}'; + } + return $currentstring; +} + +sub end_xmp { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { + $currentstring .= $token->[2]; + } elsif ($target eq 'tex') { + $currentstring .= '\end{verbatim}'; + } + return $currentstring; +} + +#-- <pre> (end tag required) +sub start_pre { + my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; + my $currentstring = &end_p(); # close off pending <p> + if ($target eq 'web' || $target eq 'webgrade') { $currentstring .= $token->[4]; } elsif ($target eq 'tex') { $currentstring .= '\begin{verbatim}'; + &Apache::lonxml::disable_LaTeX_substitutions(); } return $currentstring; } @@ -2218,10 +3585,11 @@ sub start_pre { sub end_pre { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring .= $token->[2]; } elsif ($target eq 'tex') { $currentstring .= '\end{verbatim}'; + &Apache::lonxml::enable_LaTeX_substitutions(); } return $currentstring; } @@ -2230,7 +3598,7 @@ sub end_pre { sub start_insert { my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { my $display = &Apache::lonxml::get_param('display',$parstack,$safeeval,undef,1); $currentstring .= '<b>'.$display.'</b>';; } @@ -2240,7 +3608,7 @@ sub start_insert { sub end_insert { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring .= ''; } return $currentstring; @@ -2250,7 +3618,7 @@ sub end_insert { sub start_externallink { my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { my $display = &Apache::lonxml::get_param('display',$parstack,$safeeval,undef,1); $currentstring .= '<b>'.$display.'</b>';; } @@ -2260,7 +3628,7 @@ sub start_externallink { sub end_externallink { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring .= ''; } return $currentstring; @@ -2269,7 +3637,7 @@ sub end_externallink { #-- <blankspace heigth=""> sub start_blankspace { my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; - my $currentstring = ''; + my $currentstring = &end_p(); # closes off any unclosed <p> if ($target eq 'tex') { my $howmuch = &Apache::lonxml::get_param('heigth',$parstack,$safeeval,undef,1); $currentstring .= '\vskip '.$howmuch.' '; @@ -2286,11 +3654,11 @@ sub end_blankspace { return $currentstring; } -#-- <abbr> tag +#-- <abbr> tag (end tag required) sub start_abbr { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[4]; } return $currentstring; @@ -2299,17 +3667,17 @@ sub start_abbr { sub end_abbr { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[2]; } return $currentstring; } -#-- <acronym> tag +#-- <acronym> tag (end tag required) sub start_acronym { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[4]; } return $currentstring; @@ -2318,17 +3686,17 @@ sub start_acronym { sub end_acronym { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[2]; } return $currentstring; } -#-- <area> tag +#-- <area> tag (end tag forbidden) sub start_area { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[4]; } return $currentstring; @@ -2337,36 +3705,36 @@ sub start_area { sub end_area { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[2]; } return $currentstring; } -#-- <base> tag +#-- <base> tag (end tag forbidden) sub start_base { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[4]; - } + } return $currentstring; } sub end_base { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[2]; } return $currentstring; } -#-- <bdo> tag +#-- <bdo> tag (end tag required) sub start_bdo { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[4]; } return $currentstring; @@ -2375,17 +3743,17 @@ sub start_bdo { sub end_bdo { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[2]; } return $currentstring; } -#-- <bgsound> tag +#-- <bgsound> tag (end tag optional) sub start_bgsound { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[4]; } return $currentstring; @@ -2394,17 +3762,17 @@ sub start_bgsound { sub end_bgsound { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[2]; } return $currentstring; } -#-- <blink> tag +#-- <blink> tag (end tag required) sub start_blink { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[4]; } return $currentstring; @@ -2413,36 +3781,42 @@ sub start_blink { sub end_blink { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[2]; } return $currentstring; } -#-- <blockquote> tag +#-- <blockquote> tag (end tag required) sub start_blockquote { my ($target,$token) = @_; - my $currentstring = ''; - if ($target eq 'web') { - $currentstring = $token->[4]; + my $currentstring = &end_p(); # Close any unclosed <p> + if ($target eq 'web' || $target eq 'webgrade') { + $currentstring .= $token->[4]; } + if ($target eq 'tex') { + $currentstring .= '\begin{quote}'; + } return $currentstring; } sub end_blockquote { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[2]; } + if ($target eq 'tex') { + $currentstring = '\end{quote}'; + } return $currentstring; } -#-- <button> tag +#-- <button> tag (end tag required) sub start_button { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[4]; } return $currentstring; @@ -2451,17 +3825,17 @@ sub start_button { sub end_button { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[2]; } return $currentstring; } -#-- <caption> tag +#-- <caption> tag (end tag required) sub start_caption { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[4]; } return $currentstring; @@ -2470,17 +3844,17 @@ sub start_caption { sub end_caption { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[2]; } return $currentstring; } -#-- <col> tag +#-- <col> tag (end tag forbdden) sub start_col { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[4]; } return $currentstring; @@ -2489,17 +3863,17 @@ sub start_col { sub end_col { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[2]; } return $currentstring; } -#-- <colgroup> tag +#-- <colgroup> tag (end tag optional) sub start_colgroup { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[4]; } return $currentstring; @@ -2508,17 +3882,17 @@ sub start_colgroup { sub end_colgroup { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[2]; } return $currentstring; } -#-- <del> tag +#-- <del> tag (end tag required) sub start_del { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[4]; } return $currentstring; @@ -2527,17 +3901,17 @@ sub start_del { sub end_del { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[2]; } return $currentstring; } -#-- <fieldset> tag +#-- <fieldset> tag (end tag required) sub start_fieldset { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[4]; } return $currentstring; @@ -2546,17 +3920,17 @@ sub start_fieldset { sub end_fieldset { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[2]; } return $currentstring; } -#-- <frame> tag +#-- <frame> tag (end tag forbidden) sub start_frame { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[4]; } return $currentstring; @@ -2565,17 +3939,17 @@ sub start_frame { sub end_frame { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[2]; } return $currentstring; } -#-- <iframe> tag +#-- <iframe> tag (end tag required) sub start_iframe { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[4]; } return $currentstring; @@ -2584,17 +3958,17 @@ sub start_iframe { sub end_iframe { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[2]; } return $currentstring; } -#-- <ins> tag +#-- <ins> tag (end tag required) sub start_ins { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[4]; } return $currentstring; @@ -2603,17 +3977,17 @@ sub start_ins { sub end_ins { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[2]; } return $currentstring; } -#-- <isindex> tag +#-- <isindex> tag (end tag forbidden) sub start_isindex { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[4]; } return $currentstring; @@ -2622,17 +3996,17 @@ sub start_isindex { sub end_isindex { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[2]; } return $currentstring; } -#-- <keygen> tag +#-- <keygen> tag (end tag forbidden) sub start_keygen { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[4]; } return $currentstring; @@ -2641,7 +4015,7 @@ sub start_keygen { sub end_keygen { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[2]; } return $currentstring; @@ -2651,7 +4025,7 @@ sub end_keygen { sub start_label { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[4]; } return $currentstring; @@ -2660,17 +4034,17 @@ sub start_label { sub end_label { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[2]; } return $currentstring; } -#-- <layer> tag +#-- <layer> tag (end tag required) sub start_layer { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[4]; } return $currentstring; @@ -2679,17 +4053,17 @@ sub start_layer { sub end_layer { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[2]; } return $currentstring; } -#-- <legend> tag +#-- <legend> tag (end tag required) sub start_legend { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[4]; } return $currentstring; @@ -2698,17 +4072,20 @@ sub start_legend { sub end_legend { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[2]; } return $currentstring; } -#-- <link> tag +#-- <link> tag (end tag forbidden) sub start_link { - my ($target,$token) = @_; + my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { + my $href=&Apache::lonxml::get_param('href',$parstack,$safeeval, + undef,1); + &Apache::lonxml::extlink($href); $currentstring = $token->[4]; } return $currentstring; @@ -2717,17 +4094,17 @@ sub start_link { sub end_link { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[2]; } return $currentstring; } -#-- <marquee> tag +#-- <marquee> tag (end tag optional) sub start_marquee { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[4]; } return $currentstring; @@ -2736,55 +4113,59 @@ sub start_marquee { sub end_marquee { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[2]; } return $currentstring; } -#-- <malticol> tag -sub start_malticol { +#-- <multicol> tag (end tag required) +sub start_multicol { my ($target,$token) = @_; - my $currentstring = ''; - if ($target eq 'web') { - $currentstring = $token->[4]; + my $currentstring = &end_p(); # Close any pending <p> + if ($target eq 'web' || $target eq 'webgrade') { + $currentstring .= $token->[4]; } return $currentstring; } -sub end_malticol { +sub end_multicol { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[2]; } return $currentstring; } -#-- <nobr> tag +#-- <nobr> tag (end tag required) sub start_nobr { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[4]; - } + } elsif ($target eq 'tex') { + $currentstring='\mbox{'; + } return $currentstring; } sub end_nobr { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[2]; - } + } elsif ($target eq 'tex') { + $currentstring='}'; + } return $currentstring; } -#-- <noembed> tag +#-- <noembed> tag (end tag required) sub start_noembed { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[4]; } return $currentstring; @@ -2793,17 +4174,17 @@ sub start_noembed { sub end_noembed { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[2]; } return $currentstring; } -#-- <noframes> tag +#-- <noframes> tag (end tag required) sub start_noframes { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[4]; } return $currentstring; @@ -2812,17 +4193,17 @@ sub start_noframes { sub end_noframes { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[2]; } return $currentstring; } -#-- <nolayer> tag +#-- <nolayer> tag (end tag required) sub start_nolayer { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[4]; } return $currentstring; @@ -2831,17 +4212,17 @@ sub start_nolayer { sub end_nolayer { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[2]; } return $currentstring; } -#-- <noscript> tag +#-- <noscript> tag (end tag required) sub start_noscript { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[4]; } return $currentstring; @@ -2850,17 +4231,17 @@ sub start_noscript { sub end_noscript { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[2]; } return $currentstring; } -#-- <object> tag +#-- <object> tag (end tag required) sub start_object { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[4]; } return $currentstring; @@ -2869,17 +4250,17 @@ sub start_object { sub end_object { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[2]; } return $currentstring; } -#-- <optgroup> tag +#-- <optgroup> tag (end tag required) sub start_optgroup { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[4]; } return $currentstring; @@ -2888,28 +4269,32 @@ sub start_optgroup { sub end_optgroup { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[2]; } return $currentstring; } -#-- <samp> tag +#-- <samp> tag (end tag required) sub start_samp { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[4]; - } + } elsif ($target eq 'tex') { + $currentstring='\texttt{'; + } return $currentstring; } sub end_samp { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[2]; - } + } elsif ($target eq 'tex') { + $currentstring='}'; + } return $currentstring; } @@ -2917,7 +4302,7 @@ sub end_samp { sub start_server { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[4]; } return $currentstring; @@ -2926,18 +4311,18 @@ sub start_server { sub end_server { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[2]; } return $currentstring; } -#-- <spacer> tag +#-- <spacer> tag (end tag forbidden) sub start_spacer { my ($target,$token) = @_; - my $currentstring = ''; - if ($target eq 'web') { - $currentstring = $token->[4]; + my $currentstring = &end_p(); # Close off any open <p> tag. + if ($target eq 'web' || $target eq 'webgrade') { + $currentstring .= $token->[4]; } return $currentstring; } @@ -2945,17 +4330,17 @@ sub start_spacer { sub end_spacer { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[2]; } return $currentstring; } -#-- <span> tag +#-- <span> tag (end tag required) sub start_span { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[4]; } return $currentstring; @@ -2964,17 +4349,17 @@ sub start_span { sub end_span { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[2]; } return $currentstring; } -#-- <tbody> tag +#-- <tbody> tag (end tag optional) sub start_tbody { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[4]; } return $currentstring; @@ -2983,17 +4368,17 @@ sub start_tbody { sub end_tbody { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[2]; } return $currentstring; } -#-- <tfoot> tag +#-- <tfoot> tag (end tag optional) sub start_tfoot { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[4]; } return $currentstring; @@ -3002,17 +4387,17 @@ sub start_tfoot { sub end_tfoot { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[2]; } return $currentstring; } -#-- <thead> tag +#-- <thead> tag (end tag optional) sub start_thead { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[4]; } return $currentstring; @@ -3021,7 +4406,7 @@ sub start_thead { sub end_thead { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[2]; } return $currentstring; @@ -3031,26 +4416,30 @@ sub end_thead { sub start_var { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[4]; - } + } elsif ($target eq 'tex') { + $currentstring = '\textit{'; + } return $currentstring; } sub end_var { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { - $currentstring = $token->[2]; + if ($target eq 'web' || $target eq 'webgrade') { + $currentstring = $token->[2]; + } elsif ($target eq 'tex') { + $currentstring = '}'; } return $currentstring; } -#-- <wbr> tag +#-- <wbr> tag (end tag forbidden) sub start_wbr { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[4]; } return $currentstring; @@ -3059,29 +4448,524 @@ sub start_wbr { sub end_wbr { my ($target,$token) = @_; my $currentstring = ''; - if ($target eq 'web') { + if ($target eq 'web' || $target eq 'webgrade') { $currentstring = $token->[2]; } return $currentstring; } +#-- <hideweboutput> tag +sub start_hideweboutput { + my ($target,$token) = @_; + if ($target eq 'web' || $target eq 'webgrade') { + &Apache::lonxml::startredirection(); + } + return ''; +} + +sub end_hideweboutput { + my ($target,$token) = @_; + my $currentstring = ''; + if ($target eq 'web' || $target eq 'webgrade') { + $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); + if (not -e $src) { &Apache::lonnet::repcopy($src); } + #replicates eps or ps + my $epssrc = my $pssrc = $src; + $epssrc =~ s/\.(gif|jpg|jpeg|png)$/.eps/i; + $pssrc =~ s/\.(gif|jpg|jpeg|png)$/.ps/i; + if (not -e $epssrc && not -e $pssrc) { + my $result=&Apache::lonnet::repcopy($epssrc); + if ($result ne 'ok') { &Apache::lonnet::repcopy($pssrc); } + } + return ''; +} + + + +sub resize_image { + my ($height_param, $width_param, $scaling, + $parstack, $safeeval, $depth, $cis) = @_; + + # First apply the scaling... + + $height_param = $height_param * $scaling; + $width_param = $width_param * $scaling; + + #do we have any specified LaTeX size of the picture? + my $toget='TeXwidth'; + if ($cis) { + $toget=lc($toget); + } + my $TeXwidth = &Apache::lonxml::get_param($toget,$parstack, + $safeeval,$depth,$cis); + $toget='TeXheight'; if ($cis) { $toget=lc($toget); } + my $TeXheight = &Apache::lonxml::get_param($toget,$parstack, + $safeeval,$depth,$cis); + #do we have any specified web size of the picture? + my $width = &Apache::lonxml::get_param('width',$parstack,$safeeval, + $depth,1); + if ($TeXwidth) { + my $old_width_param=$width_param; + if ($TeXwidth=~/(\d+)\s*\%/) { + $width_param = $1*$env{'form.textwidth'}/100; + } else { + $width_param = $TeXwidth; + } + if ($TeXheight) { + $height_param = $TeXheight; + } elsif ($old_width_param) { + $height_param=$TeXwidth/$old_width_param*$height_param; + } + } elsif ($TeXheight) { + $height_param = $TeXheight; + if ($height_param) { + $width_param = $TeXheight/$height_param*$width_param; + } + } elsif ($width) { + my $old_width_param=$width_param; + $width_param = $width*$scaling; + if ($old_width_param) { + $height_param=$width_param/$old_width_param*$height_param; + } + } + if ($width_param > $env{'form.textwidth'}) { + my $old_width_param=$width_param; + $width_param =0.95*$env{'form.textwidth'}; + if ($old_width_param) { + $height_param=$width_param/$old_width_param*$height_param; + } + } + + return ($height_param, $width_param); +} + +sub image_size { + my ($src,$scaling,$parstack,$safeeval,$depth,$cis)=@_; + + #size of image from gif/jpg/jpeg/png + my $ressrc=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src); + if (-e $ressrc) { + $src = $ressrc; + } + my $image = Image::Magick->new; + my $current_figure = $image->Read($src); + my $width_param = $image->Get('width'); + my $height_param = $image->Get('height'); + &Apache::lonxml::debug("Image magick says: $src : Height = $height_param width = $width_param"); + undef($image); + + ($height_param, $width_param) = &resize_image($height_param, $width_param, + $scaling, $parstack, $safeeval, + $depth, $cis); + + return ($height_param, $width_param); +} + +sub image_width { + my ($height, $width) = &image_size(@_); + return $width; +} +# Not yet 100% sure this is correct in all circumstances.. +# due to my uncertainty about mods to image_size. +# +sub image_height { + my ($height, $width) = &image_size(@_); + return $height; +} + +sub get_eps_image { + my ($src)=@_; + my $orig_src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1], $src); + + # In order to prevent the substitution of the alt text, we need to + # be sure the orig_src file is on system now so: + + if (! -e $orig_src) { + &Apache::lonnet::repcopy($orig_src); # Failure is not completely fatal. + } + &Apache::lonxml::debug("get_eps_image: Original image: $orig_src"); + my ($spath, $sname, $sext) = &fileparse($src, qr/\.(bmp|gif|png|jpg|jpeg)/i); + $src=~s/\.(bmp|gif|png|jpg|jpeg)$/\.eps/i; + $src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src); + &Apache::lonxml::debug("Filelocation gives: $src"); + if (! -e $src) { + &Apache::lonxml::debug("$src does not exist"); + if (&Apache::lonnet::repcopy($src) ne 'ok' ) { + &Apache::lonxml::debug("Repcopy of $src failed (1)"); + #if replication failed try to find ps file + $src=~s/\.eps$/\.ps/; + &Apache::lonxml::debug("Now looking for $src"); + #if no ps file try to replicate it. + my $didrepcopy = &Apache::lonnet::repcopy($src); + &Apache::lonxml::debug("repcopy of $src ... $didrepcopy"); + if ( (not -e $src) || + ($didrepcopy ne 'ok')) { + &Apache::lonxml::debug("Failed to find or replicate $src"); + + #if replication failed try to produce eps file dynamically + $src=~s/\.ps$/\.eps/; + my $temp_file; + open(FILE,">>/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.dat"); + my $newsrc=$orig_src; + $newsrc =~ s|(.*)/res/|/home/httpd/html/res/|; + &Apache::lonxml::debug("queueing $newsrc for dynamic eps production."); + print FILE ("$newsrc\n"); + close(FILE); + $src=~s|/home/httpd/html/res|/home/httpd/prtspool|; + $src=~s|/home/([^/]*)/public_html/|/home/httpd/prtspool/$1/|; + if ($sext ne "") { # Put the ext. back in to uniquify. + $src =~ s/\.eps$/$sext.eps/; + } + } + } + } else { + # If the postscript file has spaces in its name, + # LaTeX will gratuitiously vomit. Therefore + # queue such files for copy with " " replaced by "_". + # printout.pm will know them by their .ps or .eps extensions. + my $newsrc = $orig_src; + $newsrc =~ s|(.*)/res/|/home/httpd/html/res/|; + open(FILE,">>/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.dat"); + print FILE "$src\n"; + close FILE; + $src=~s|/home/httpd/html/res|/home/httpd/prtspool|; + $src=~s|/home/([^/]*)/public_html/|/home/httpd/prtspool/$1/|; + } + my ($path,$file)=($src=~m|(.*)/([^/]*)$|); + $path =~ s/ /\_/g; + $file =~ s/ /\_/g; + &Apache::lonxml::debug("get_eps_image returning: $path / $file<BR />"); + return ($path.'/',$file); +} + +sub eps_generation { + my ($src,$file,$width_param) = @_; + my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.dat"; + my $temp_file = Apache::File->new('>>'.$filename); + print $temp_file "$src\n"; + my $newsrc = $src; + $newsrc =~ s/(\.bmp|\.gif|\.jpg|\.jpeg)$/\.eps/i; + $newsrc=~s{/home/httpd/html/res}{}; + $newsrc=~s{/home/($LONCAPA::username_re)/public_html/}{/$1/}; + $newsrc=~s{/\./}{/}; + $newsrc=~s{/([^/]+)\.(ps|eps)}{/}; + if ($newsrc=~m{/home/httpd/lonUsers/}) { + $newsrc=~s{/home/httpd/lonUsers}{}; + $newsrc=~s{/($LONCAPA::domain_re)/./././}{/$1/}; } - return ''; + if ($newsrc=~m{/userfiles/}) { + return ' \graphicspath{{'.$newsrc.'}}\includegraphics[width='.$width_param.' mm]{'.$file.'} '; + } else { + return ' \graphicspath{{/home/httpd/prtspool'.$newsrc.'}}\includegraphics[width='.$width_param.' mm]{'.$file.'} '; + } +} + +sub file_path { + my $src=shift; + my ($file,$path); + if ($src =~ m!(.*)/([^/]*)$!) { + $file = $2; + $path = $1.'/'; + } + return $file,$path; +} + + +sub recalc { + my $argument = shift; + if (not $argument=~/(mm|cm|in|pc|pt)/) {return $argument.' mm';} + $argument=~/\s*(\d+\.?\d*)\s*(mm|cm|in|pc|pt)/; + my $value=$1; + my $units=$2; + if ($units eq 'cm') { + $value*=10; + } elsif ($units eq 'in') { + $value*=25.4; + } elsif ($units eq 'pc') { + $value*=(25.4*12/72.27); + } elsif ($units eq 'pt') { + $value*=(25.4/72.27); + } + return $value.' mm'; +} + +sub LATEX_length { + my $garbage=shift; + $garbage=~s/^\s+$//; + $garbage=~s/^\s+(\S.*)/$1/;#space before + $garbage=~s/(.*\S)\s+$/$1/;#space after + $garbage=~s/(\s)+/$1/;#only one space + $garbage=~s/(\\begin{([^\}]+)}|\\end{([^\}]+)})//g;#remove LaTeX \begin{...} and \end{...} + $garbage=~s/(\$\_\{|\$\_|\$\^{|\$\^|\}\$)//g;#remove $_{,$_,$^{,$^,}$ + $garbage=~s/([^\\])\$/$1/g;#$ + $garbage=~s/(\\ensuremath\{\_\{|\\ensuremath\{\_|\\ensuremath\{\^{|\\ensuremath\{\^|\})//g;#remove \ensuremath{...} + $garbage=~s/(\\alpha|\\beta|\\gamma|\\delta|\\epsilon|\\verepsilon|\\zeta|\\eta|\\theta|\\vartheta|\\iota|\\kappa|\\lambda|\\mu|\\nu|\\xi|\\pi|\\varpi|\\rho|\\varrho|\\sigma|\\varsigma|\\tau|\\upsilon|\\phi|\\varphi|\\chi|\\psi|\\omega|\\Gamma|\\Delta|\\Theta|\\Lambda|\\Xi|\\Pi|\\Sigma|\\Upsilon|\\Phi|\\Psi|\\Omega)/1/g; + $garbage=~s/(\\pm|\\mp|\\times|\\div|\\cdot|\\ast|\\star|\\dagger|\\ddagger|\\amalg|\\cap|\\cup|\\uplus|\\sqcap|\\sqcup|\\vee|\\wedge|\\oplus|\\ominus|\\otimes|\\circ|\\bullet|\\diamond|\\lhd|\\rhd|\\unlhd|\\unrhd|\\oslash|\\odot|\\bigcirc|\\Box|\\Diamond|\\bigtriangleup|\\bigtriangledown|\\triangleleft|\\triangleright|\\setminus|\\wr)/1/g; + $garbage=~s/(\\le|\\ll|\\leq|\\ge|\\geq|\\gg|\\neq|\\doreq|\\sim|\\simeq|\\subset|\\subseteq|\\sqsubset|\\sqsubseteq|\\in|\\vdash|\\models|\\supset|\\supseteq|\\sqsupset|\\sqsupseteq|\\ni|\\dash|\\perp|\\approx|\\cong|\\equiv|\\propto|\\prec|\\preceq|\\parallel|\\asymp|\\smile|\\frown|\\bowtie|\\succ|\\succeq|\\mid)/1/g; + $garbage=~s/(\\not<|\\\\not\\le|\\not\\prec|\\not\\preceq|\\not\\subset|\\not\\subseteq|\\not\\sqsubseteq|\\not\\in|\\not>|\\not\\ge|\\not\\succ|\\notsucceq|\\not\\supset|\\notsupseteq|\\not\\sqsupseteq|\\notin|\\not=|\\not\\equiv|\\not\\sim|\\not\\simeq|\\not\\approx|\\not\\cong|\\not\\asymp)/1/g; + $garbage=~s/(\\leftarrow|\\gets|\\Leftarrow|\\rightarrow|\\to|\\Rightarrow|\\leftrightarrow|\\Leftrightarrow|\\mapsto|\\hookleftarrow|\\leftharpoonup|\\leftkarpoondown|\\rightleftharpoons|\\longleftarrow|\\Longleftarrow|\\longrightarrow|\\Longrightarrow|\\longleftrightarrow|\\Longleftrightarrow|\\longmapsto|\\hookrightarrow|\\rightharpoonup|\\rightharpoondown|\\uparrow|\\Uparrow|\\downarrow|\\Downarrow|\\updownarrow|\\Updownarrow|\\nearrow|\\searrow|\\swarrow|\\nwarrow)/11/g; + $garbage=~s/(\\aleph|\\hbar|\\imath|\\jmath|\\ell|\\wp|\\Re|\\Im|\\mho|\\prime|\\emptyset|\\nabla|\\surd|\\partial|\\top|\\bot|\\vdash|\\dashv|\\forall|\\exists|\\neg|\\flat|\\natural|\\sharp|\\\||\\angle|\\backslash|\\Box|\\Diamond|\\triangle|\\clubsuit|\\diamondsuit|\\heartsuit|\\spadesuit|\\Join|\\infty)/11/g; + $garbage=~s/(\\hat{([^}]+)}|\\check{([^}]+)}|\\dot{([^}]+)}|\\breve{([^}]+)}|\\acute{([^}]+)}|\\ddot{([^}]+)}|\\grave{([^}]+)}|\\tilde{([^}]+)}|\\mathring{([^}]+)}|\\bar{([^}]+)}|\\vec{([^}]+)})/$1/g; + #remove some other LaTeX command + $garbage=~s|\\(\w+)\\|\\|g; + $garbage=~s|\\(\w+)(\s*)|$2|g; + $garbage=~s|\+|11|g; + my $value=length($garbage); + return $value; +} + + +sub align_latex_image { + my ($align, $latex_rendering, $image, $width, $height) = @_; + my $currentstring; # The 1/2 wrapped image. + my $closure; # The closure of the wrappage. + + # if it's none just return it back + if ($latex_rendering eq 'none') { + return ($image,''); + } + + # If there's an alignment specification we need to honor it here. + # For the horizontal alignments, we will also honor the + # value of the latex specfication. The default is parbox, + # and that's used for illegal values too. + # + # Even though we set a default alignment value, the user + # could have given us an illegal value. In that case we + # just use the default alignment of bottom.. + $currentstring = "\n% figurewrapping \n"; + if ($align eq "top") { + $currentstring .= '\raisebox{-'.$height.'mm}{'.$image; + $closure = '}'; + } elsif (($align eq "center") || ($align eq "middle")) { # Being kind + my $offset = $height/2; + $currentstring .= '\raisebox{-'.$offset.'mm}{'.$image; + $closure = '}'; + } elsif ($align eq "left") { + if ($latex_rendering eq "parpic") { + $currentstring .= '\parpic[l]{'.$image; + $closure = '}'; + } elsif ($latex_rendering eq "parbox") { + $currentstring .= '\begin{minipage}[l]{'.$width.'mm}' + .$image; + $closure = '\end{minipage}'; + } elsif ($latex_rendering eq "wrapfigure" + || $latex_rendering ne 'none') { # wrapfig render + $currentstring .= + '\begin{wrapfigure}{l}{'.$width.'mm}' + .'\scalebox{1.0}{'.$image; + $closure = '}\end{wrapfigure}'; + } + } elsif ($align eq "right") { + if ($latex_rendering eq "parpic") { + $currentstring .= '\parpic[r]{'.$image; + $closure = '}'; + } elsif ($latex_rendering eq "parbox") { + $currentstring .= '\begin{minipage}[r]{'.$width.'mm}' + .$image; + $closure = '\end{minipage}'; + } elsif ($latex_rendering eq "wrapfigure" + || $latex_rendering ne 'none') { # wrapfig render + $currentstring .= + '\begin{wrapfigure}{r}{'.$width.'mm}' + .'\scalebox{1.0}{'.$image; + $closure = '}\end{wrapfigure}'; + } + } else { # Bottom is also default. + # $currentstring = '\raisebox{'.$height.'mm}{'.$image.'}'; + $currentstring .= "{$image"; + $closure = '}'; + } + $currentstring .= "\n% end wrappage\n"; + $closure = "\n% Begin closure\n".$closure."\n% End closure\n"; + return ($currentstring, $closure); +} + + +sub is_inside_of { + my ($tagstack, $tag) = @_; + my @stack = @$tagstack; + for (my $i = ($#stack - 1); $i >= 0; $i--) { + if ($stack[$i] eq $tag) { + return 1; + } + } + return 0; } + +# +# This sub provides the typical LaTeX prefix matter for tex output: +# +sub latex_header +{ + my ($mode) = @_; + my $currentstring = ''; + + $currentstring .= + "\n% &Apache::lonxml::londefdef \n" . + '\documentclass[letterpaper,twoside]{article}\raggedbottom'; + if (($env{'form.latex_type'}=~'batchmode') || + (!$env{'request.role.adv'}) || + ($mode eq 'batchmode')) {$currentstring .='\batchmode';} + $currentstring .= '\newcommand{\keephidden}[1]{}'. + '\renewcommand{\deg}{$^{\circ}$}'. + '\usepackage{multirow}'. + '\usepackage{longtable}'. + '\usepackage{textcomp}'. + '\usepackage{makeidx}'. + '\usepackage[dvips]{graphicx}'. + '\usepackage{wrapfig}'. + '\usepackage{picins}'. + '\usepackage[T1]{fontenc}'."\n". + '\usepackage{lmodern}'."\n". + '\usepackage[postscript]{ucs}'."\n". + '\usepackage[utf8x]{inputenc}'."\n". + '\usepackage{pifont}' ."\n". + '\usepackage{latexsym}'."\n". + '\usepackage{epsfig}'. + "\\usepackage{xtab}\n". + "\\usepackage{tabularx}\n". + "\\usepackage{booktabs}\n". + "\\usepackage{array}\n". + "\\usepackage{colortbl}\n". + "\\usepackage{xcolor}\n". + '\usepackage{calc}'. + '\usepackage{amsmath}'. + '\usepackage{amssymb}'. + '\usepackage{amsfonts}'. + '\usepackage{amsthm}'. + '\usepackage{amscd}' + .'\usepackage{picins}\usepackage{calc}'."\n". # From lonprintout.pm + '\usepackage[T1]{fontenc}'."\n". + '\usepackage{lmodern}'."\n". + '\usepackage[postscript]{ucs}'."\n". + '\usepackage[utf8x]{inputenc}'."\n". + '\usepackage{pifont}' . "\n"; + + if($env{'form.pdfFormFields'} eq 'yes') { + $currentstring .= '\usepackage{hyperref}'. + '\usepackage{eforms}'. + '\usepackage{tabularx}'; + } + + $currentstring .= '\newenvironment{choicelist}{\begin{list}{}{\setlength{\rightmargin}{0in}\setlength{\leftmargin}{0.13in}\setlength{\topsep}{0.05in}\setlength{\itemsep}{0.022in}\setlength{\parsep}{0in}\setlength{\belowdisplayskip}{0.04in}\setlength{\abovedisplayskip}{0.05in}\setlength{\abovedisplayshortskip}{-0.04in}\setlength{\belowdisplayshortskip}{0.04in}}}{\end{list}}'. + '\renewenvironment{theindex}{\begin{list}{}{{\vskip 1mm \noindent \large\textbf{Index}} \newline \setlength{\rightmargin}{0in}\setlength{\leftmargin}{0.13in}\setlength{\topsep}{0.01in}\setlength{\itemsep}{0.1in}\setlength{\parsep}{-0.02in}\setlength{\belowdisplayskip}{0.01in}\setlength{\abovedisplayskip}{0.01in}\setlength{\abovedisplayshortskip}{-0.04in}\setlength{\belowdisplayshortskip}{0.01in}}}{\end{list}}'; + $currentstring .= '\begin{document}'; + + return $currentstring; + +} + +=pod + +=head1 NAME + +Apache::londefdef.pm + +=head1 SYNOPSIS + +Tags Default Definition Module + +This is part of the LearningOnline Network with CAPA project +described at http://www.lon-capa.org. + + +=head1 NOTABLE SUBROUTINES + +=over + +=item start_hideweboutput() + +=item end_hideweboutput() + +=item image_replication() + +=item resize_image() + + Get correct sizing parameter for an image given + it's initial ht. and wid. This allows sizing of + images that are generated on-the-fly (e.g. gnuplot) + as well as serving as a utility for image_size. + + Parameter: + height_param + width_param - Initial picture dimensions. + scaling - A scale factor. + parstack, - the current stack of tag attributes + from the xml parser + safeeval, - pointer to the safespace + depth, - from what level in the stack to look for attributes + (assumes -1 if unspecified) + cis - look for attrubutes case insensitively + (assumes false) + + Returns: + height, width - new dimensions. + +=item image_size() + +=item image_width() + +=item image_height() + +=item get_eps_image() + +=item eps_generation() + +=item file_path() + +=item recalc() + + Converts a measurement in to mm from any of + the other valid LaTeX units of measure. + If the units of measure are missing from the + parameter, it is assumed to be in and returned + with mm units of measure + +=item LATEX_length() + +=item align_latex_image() + + Wrap image 'stuff' inside of the LaTeX required to implement + alignment: + align_tex_image(align, latex_rendering, image) + Where: + align - The HTML alignment specification. + latex_rendering - rendering hint for latex. + image - The LaTeX needed to insert the image itsef. + width,height - dimensions of the image. + Returns: + The 1/2 wrapped image and the stuff required to close the + wrappage. This allows e.g. randomlabel to insert more stuff + into the closure. + + +=item is_inside_of($tagstack, $tag) + This sub returns true if the current state of Xml processing is inside of the tag. + Parameters: + tagstack - The tagstack from the parser. + tag - The tag (without the <>'s.). + Sample usage: + if (is_inside_of($tagstack "table")) { + I'm in a table.... + } + + + +=back + +=cut + + 1; __END__