--- loncom/xml/londefdef.pm 2003/07/08 18:12:28 1.151 +++ loncom/xml/londefdef.pm 2003/09/25 15:52:57 1.172 @@ -1,7 +1,7 @@ # The LearningOnline Network with CAPA # Tags Default Definition Module # -# $Id: londefdef.pm,v 1.151 2003/07/08 18:12:28 sakharuk Exp $ +# $Id: londefdef.pm,v 1.172 2003/09/25 15:52:57 sakharuk 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 @@ -52,6 +51,8 @@ use Image::Magick; use Apache::lonmenu(); use Apache::lonmeta(); +$Apache::londefdef::TD_redirection=0; + BEGIN { &Apache::lonxml::register('Apache::londefdef',('a','abbr','acronym','accessrule','address','allow','applet','area','b','base','basefont','bgo','bgsound','big','blink','blockquote','blankspace','body','br','button','caption','center','cite','code','col','colgroup','dd','del','dfn','dir','div','dl','dt','em','embed','externallink','fieldset','font','form','frame','frameset','h1','h2','h3','h4','h5','h6','head','hr','html','i','iframe','img','input','ins','insert','isindex','kbd','keygen','label','layer','legend','li','link','m','map','marquee','menu','meta','multicol','nobr','noembed','noframes','nolayer','noscript','object','ol','optgroup','option','output','p','param','pre','q','s','samp','select','server','small','spacer','span','strike','strong','sub','sup','table','tbody','td','textarea','tfoot','th','thead','title','tr','tt','tthoption','u','ul','var','wbr','hideweboutput')); @@ -157,15 +158,17 @@ sub start_html { &Apache::lonxml::fontsettings(); } elsif ($target eq 'tex') { @Apache::londefdef::table = (); - $currentstring .= '\documentclass[letterpaper]{article}'. - #'\batchmode'. - '\newcommand{\keephidden}[1]{} + $currentstring .= '\documentclass[letterpaper]{article}'; + if ($ENV{'form.latex_type'}=~'batchmode') {$currentstring .='\batchmode';} + $currentstring .= '\newcommand{\keephidden}[1]{} \renewcommand{\deg}{$^{\circ}$} \usepackage{longtable} \usepackage{textcomp} + \usepackage{makeidx} \usepackage[dvips]{graphicx} \usepackage{epsfig}\usepackage{calc} -\newenvironment{choicelist}{\begin{list}{}{\setlength{\rightmargin}{0in}\setlength{\leftmargin}{0.13in}\setlength{\topsep}{0.05in}\setlength{\itemsep}{0.022in}\setlength{\parsep}{0in}\setlength{\belowdisplayskip}{0.04in}\setlength{\abovedisplayskip}{0.05in}\setlength{\abovedisplayshortskip}{-0.04in}\setlength{\belowdisplayshortskip}{0.04in}}}{\end{list}}'; +\newenvironment{choicelist}{\begin{list}{}{\setlength{\rightmargin}{0in}\setlength{\leftmargin}{0.13in}\setlength{\topsep}{0.05in}\setlength{\itemsep}{0.022in}\setlength{\parsep}{0in}\setlength{\belowdisplayskip}{0.04in}\setlength{\abovedisplayskip}{0.05in}\setlength{\abovedisplayshortskip}{-0.04in}\setlength{\belowdisplayshortskip}{0.04in}}}{\end{list}} +\renewenvironment{theindex}{\begin{list}{}{{\vskip 1mm \noindent \large\textbf{Index}} \newline \setlength{\rightmargin}{0in}\setlength{\leftmargin}{0.13in}\setlength{\topsep}{0.01in}\setlength{\itemsep}{0.1in}\setlength{\parsep}{-0.02in}\setlength{\belowdisplayskip}{0.01in}\setlength{\abovedisplayskip}{0.01in}\setlength{\abovedisplayshortskip}{-0.04in}\setlength{\belowdisplayshortskip}{0.01in}}}{\end{list}}'; } return $currentstring; } @@ -320,7 +323,7 @@ sub start_title { if ($target eq 'web') { $currentstring = $token->[4]; } elsif ($target eq 'tex') { - $currentstring .= '\keephidden{' + $currentstring .= '\keephidden{Title of the document: ' } if ($target eq 'meta') { $currentstring=''; @@ -364,11 +367,25 @@ 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.'>'; } + 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,$safeeval); @@ -381,7 +398,7 @@ sub start_meta { } sub end_meta { - my ($target,$token,$tagstack,$parstack,$parser) = @_; + my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; my $currentstring = ''; if ($target eq 'web') { my $args=''; @@ -390,8 +407,11 @@ sub end_meta { $currentstring = $token->[4]; } } elsif ($target eq 'tex') { - $currentstring=&Apache::lonxml::endredirection(); - $currentstring=''; + 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 $currentstring; } @@ -446,10 +466,37 @@ sub start_body { my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; my $currentstring = ''; if ($target eq 'web') { + if ($Apache::lonhomework::parsing_a_problem) { + &Apache::lonxml::warning("<body> tag found inside of <problem> tag this can cause problems."); + return ''; + } if (!$Apache::lonxml::registered) { $currentstring.='<head>'. &Apache::lonmenu::registerurl(undef,$target).'</head>'; } +# Accessibility + if ($ENV{'browser.imagesuppress'} eq 'on') { + delete($token->[2]->{'background'}); + } + if ($ENV{'browser.fontenhance'} eq 'on') { + my $style=''; + foreach my $key (keys(%{$token->[2]})) { + if ($key =~ /^style$/i) { + $style.=$token->[2]->{$key}.';'; + delete($token->[2]->{$key}); + } + } + $token->[2]->{'style'}=$style.'; font-size: x-large;'; + } + if ($ENV{'browser.blackwhite'} eq 'on') { + delete($token->[2]->{'font'}); + delete($token->[2]->{'link'}); + delete($token->[2]->{'alink'}); + delete($token->[2]->{'vlink'}); + delete($token->[2]->{'bgcolor'}); + delete($token->[2]->{'background'}); + } +# Overload loads my $onLoad=''; foreach my $key (keys(%{$token->[2]})) { if ($key =~ /^onload$/i) { @@ -494,7 +541,7 @@ sub end_body { if ($target eq 'web') { $currentstring = $token->[2]; } elsif ($target eq 'tex') { - $currentstring = '\end{document}'; + $currentstring = '\strut\newline\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}\newline\noindent \end{document}'; } return $currentstring; } @@ -1042,12 +1089,14 @@ sub end_q { #-- <p> tag sub start_p { - my ($target,$token) = @_; + my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; my $currentstring = ''; if ($target eq 'web') { $currentstring .= $token->[4]; } elsif ($target eq 'tex') { - $currentstring .= '\par '; + my $signal=1; + foreach my $tag (@$tagstack) {if (lc($tag) eq 'b') {$signal=0;}} + if ($signal) {$currentstring .= '\par ';} } return $currentstring; } @@ -1165,7 +1214,12 @@ sub start_font { my $currentstring = ''; if ($target eq 'web') { my $face=&Apache::lonxml::get_param('face',$parstack,$safeeval); - if ($face=~/symbol/i) {$Apache::lonxml::prevent_entity_encode++;} + if ($face=~/symbol/i) { + $Apache::lonxml::prevent_entity_encode++; + } else { + if (($ENV{'browser.fontenhance'} eq 'on') || + ($ENV{'browser.blackwhite'} eq 'on')) { return ''; } + } $currentstring = $token->[4]; } elsif ($target eq 'tex') { my $fontsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval); @@ -1357,14 +1411,21 @@ sub start_a { $currentstring .= $token->[4]; } elsif ($target eq 'tex') { my $a=&Apache::lonxml::get_param('href',$parstack,$safeeval,undef,1); - $a=~s/([^\\])%/$1\\\%/g; - $currentstring .= '\ref{'.$a.'}'; + my $b=&Apache::lonxml::get_param('name',$parstack,$safeeval,undef,1); + if ($a=~/\S/) { + $a=~s/([^\\])%/$1\\\%/g; + $currentstring .= '\ref{URI: '.$a.'}'; + } elsif ($b=~/\S/) { + $currentstring .= '\ref{Anchor: '.$b.'}'; + } else { + $currentstring.=''; + } } return $currentstring; } sub end_a { - my ($target,$token,$tagstack,$parstack,$safeeval) = @_; + my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; my $currentstring = ''; if ($target eq 'web') { $currentstring .= $token->[2]; @@ -1374,7 +1435,7 @@ sub end_a { #-- <li> tag sub start_li { - my ($target,$token,$tagstack,$parstack,$safeeval) = @_; + my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; my $currentstring = ''; if ($target eq 'web') { $currentstring = $token->[4]; @@ -1593,25 +1654,28 @@ sub end_dl { return $currentstring; } -#-- <dt> tag +#-- <dt> tag (end tag optional) sub start_dt { - my ($target,$token) = @_; - my $currentstring = ''; + my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; + my $currentstring=''; if ($target eq 'web') { $currentstring = $token->[4]; } elsif ($target eq 'tex') { - $currentstring = '\item['; + &Apache::lonxml::startredirection();; } return $currentstring; } sub end_dt { - my ($target,$token) = @_; + my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; my $currentstring = ''; if ($target eq 'web') { $currentstring = $token->[2]; } elsif ($target eq 'tex') { - $currentstring = ']'; + my $data=&Apache::lonxml::endredirection(); + $data=~s/\\begin{center}//g; + $data=~s/\\end{center}//g; + $currentstring.='\item['.$data.']'; } return $currentstring; } @@ -1623,8 +1687,8 @@ sub start_dd { if ($target eq 'web') { $currentstring = $token->[4]; } elsif ($target eq 'tex') { - if ($$tagstack[-2] eq 'dl') { - $currentstring = ' \item [] '; + if ($$tagstack[-2] eq 'dt') { + $currentstring.='\item['.&Apache::lonxml::endredirection().']'; } } return $currentstring; @@ -1736,7 +1800,7 @@ sub end_table { $needed=$#length_row_final-$needed+1; for (my $jn=0;$jn<=$#length_row_final;$jn++) { if ($length_row_final[$jn]==0) { - if ($length_raw_row[$jn]<$available_length/3) { + if ($length_raw_row[$jn]<$available_length) { $length_row_final[$jn]=$length_raw_row[$jn]; $available_length=$available_length-$length_raw_row[$jn]; $needed--; @@ -1772,7 +1836,7 @@ sub end_table { return $currentstring; } -#-- <tr> tag +#-- <tr> tag (end tag optional) sub start_tr { my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; my $currentstring = ''; @@ -1795,72 +1859,121 @@ sub start_tr { } sub end_tr { - my ($target,$token) = @_; + my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; my $currentstring = ''; if ($target eq 'web') { $currentstring = $token->[2]; } elsif ($target eq 'tex') { + if ($Apache::londefdef::TD_redirection) { + &end_td_tex($parstack,$parser,$safeeval); + } push @{ $Apache::londefdef::table[-1]{'TeXlengthrow'} },$Apache::londefdef::table[-1]{'TeXlength'}; push @{ $Apache::londefdef::table[-1]{'lengthrow'} },$Apache::londefdef::table[-1]{'length'}; } return $currentstring; } -#-- <td> tag +#-- <td> tag (end tag optional) sub start_td { my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; my $currentstring = ''; if ($target eq 'web') { $currentstring = $token->[4]; } elsif ($target eq 'tex') { - 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 ''; +} + +sub start_td_tex { + my ($parstack,$parser,$safeeval) = @_; + my $what_to_push = substr(&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1),0,1); + if ($what_to_push eq '') { + $what_to_push = substr($Apache::londefdef::table[-1]{'rows'}[0],0,1);; + } + push @{ $Apache::londefdef::table[-1]{'columns'} }, $what_to_push; + $Apache::londefdef::table[-1]{'counter_columns'}++; + &Apache::lonxml::startredirection(); + return ''; +} + +sub end_td_tex { + my ($parstack,$parser,$safeeval) = @_; + my $current_row = $Apache::londefdef::table[-1]{'row_number'}; + my $data=&Apache::lonxml::endredirection(); + my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0); + if (defined $TeXwidth) { + my $current_length=&recalc($TeXwidth); + $current_length=~/(\d+)/; + $Apache::londefdef::table[-1]{'TeXlength'} .= $1.','; + $Apache::londefdef::table[-1]{'length'} .= '0,'; + } else { + if ($data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) { + my $current_length=&recalc($1); + $current_length=~/(\d+\.?\d*)/; + $Apache::londefdef::table[-1]{'TeXlength'} .= $1.','; + $Apache::londefdef::table[-1]{'length'} .= '0,'; + } else { + $data=~s/^\s+(\S.*)/$1/; + $data=~s/(.*\S)\s+$/$1/; + $data=~s/(\s)+/$1/; + my $current_length=0; + if ($data=~/\\vskip/) { + my $newdata=$data; + $newdata=~s/\\vskip \d*\.?\d*\s*mm/THISISJUSTTEMPORARYSEPARATOR/g; + my @newdata=split(/THISISJUSTTEMPORARYSEPARATOR/,$newdata); + foreach my $elementdata (@newdata) { + $elementdata=~s/^\s+(\S.*)/$1/; + $elementdata=~s/(.*\S)\s+$/$1/; + $elementdata=~s/(\s)+/$1/; + my $lengthnewdata=1.8*length($elementdata); + if ($lengthnewdata>$current_length) {$current_length=$lengthnewdata;} + } + } else { + $current_length=1.8*length($data); + } + $Apache::londefdef::table[-1]{'length'} .= $current_length.','; + $Apache::londefdef::table[-1]{'TeXlength'} .= '0,'; + } + } + for (my $in=0; $in<=$#{$Apache::londefdef::table[-1]{'include'}};$in++) { + $data=~s/\\keephidden\{NEW TABLE ENTRY\}/$Apache::londefdef::table[-1]{'include'}[$in]/; + } + @{ $Apache::londefdef::table[-1]{'rowdata'} }[$current_row] .= '\parbox{TOBECHANGEDONNUMBER}{'.$data.'} '.$Apache::londefdef::table[-1]{'vinc'}; + return''; +} + sub end_td { my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; my $currentstring = ''; if ($target eq 'web') { $currentstring = $token->[2]; } elsif ($target eq 'tex') { - my $current_row = $Apache::londefdef::table[-1]{'row_number'}; - my $data=&Apache::lonxml::endredirection(); - my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0); - if (defined $TeXwidth) { - my $current_length=&recalc($TeXwidth); - $current_length=~/(\d+)/; - $Apache::londefdef::table[-1]{'TeXlength'} .= $1.','; - $Apache::londefdef::table[-1]{'length'} .= '0,'; - } else { - if ($data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) { - my $current_length=&recalc($1); - $current_length=~/(\d+\.?\d*)/; - $Apache::londefdef::table[-1]{'TeXlength'} .= $1.','; - $Apache::londefdef::table[-1]{'length'} .= '0,'; - } else { - $data=~s/^\s+(\S.*)/$1/; - $data=~s/(.*\S)\s+$/$1/; - my $current_length=2*length($data); - $Apache::londefdef::table[-1]{'length'} .= $current_length.','; - $Apache::londefdef::table[-1]{'TeXlength'} .= '0,'; - } - } - for (my $in=0; $in<=$#{$Apache::londefdef::table[-1]{'include'}};$in++) { - $data=~s/\\keephidden\{NEW TABLE ENTRY\}/$Apache::londefdef::table[-1]{'include'}[$in]/; - } - @{ $Apache::londefdef::table[-1]{'rowdata'} }[$current_row] .= '\parbox{TOBECHANGEDONNUMBER}{'.$data.'} '.$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 = ''; @@ -1926,10 +2039,9 @@ sub start_img { my $width_param = ''; my $height_param = ''; my $scaling = .3; - if ($target eq 'web') { if ($ENV{'browser.imagesuppress'} ne 'on') { - $currentstring = $token->[4]; + $currentstring.= $token->[4]; } else { my $alttag= &Apache::lonxml::get_param ('alt',$parstack,$safeeval,undef,1); @@ -1937,12 +2049,11 @@ sub start_img { $alttag=&Apache::lonmeta::alttag ($Apache::lonxml::pwd[-1],$src); } - $currentstring='[IMAGE: '.$alttag.']'; + $currentstring.='[IMAGE: '.$alttag.']'; } } elsif ($target eq 'tex') { $src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src); &image_replication($src); - #if original gif/jpg/png file exist do following: if (-e $src) { #defines the default size of image @@ -1967,6 +2078,7 @@ sub start_img { } elsif ($width ne '') { $width_param = $width*$scaling; } + if ($width_param > $ENV{'form.textwidth'}) {$width_param =0.95*$ENV{'form.textwidth'}} my $file; my $path; if ($src =~ m!(.*)/([^/]*)$!) { @@ -2206,6 +2318,29 @@ sub end_frameset { return $currentstring; } +#-- <xmp> +sub start_xmp { + my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; + my $currentstring = ''; + if ($target eq 'web') { + $currentstring .= $token->[4]; + } elsif ($target eq 'tex') { + $currentstring .= '\begin{verbatim}'; + } + return $currentstring; +} + +sub end_xmp { + my ($target,$token) = @_; + my $currentstring = ''; + if ($target eq 'web') { + $currentstring .= $token->[2]; + } elsif ($target eq 'tex') { + $currentstring .= '\end{verbatim}'; + } + return $currentstring; +} + #-- <pre> sub start_pre { my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_; @@ -2352,7 +2487,7 @@ sub start_base { my $currentstring = ''; if ($target eq 'web') { $currentstring = $token->[4]; - } + } return $currentstring; } @@ -2992,7 +3127,7 @@ sub end_tbody { return $currentstring; } -#-- <tfoot> tag +#-- <tfoot> tag (end tag optional) sub start_tfoot { my ($target,$token) = @_; my $currentstring = ''; @@ -3011,7 +3146,7 @@ sub end_tfoot { return $currentstring; } -#-- <thead> tag +#-- <thead> tag (end tag optional) sub start_thead { my ($target,$token) = @_; my $currentstring = ''; @@ -3036,7 +3171,9 @@ sub start_var { my $currentstring = ''; if ($target eq 'web') { $currentstring = $token->[4]; - } + } elsif ($target eq 'tex') { + $currentstring = '\textit{'; + } return $currentstring; } @@ -3044,12 +3181,14 @@ sub end_var { my ($target,$token) = @_; my $currentstring = ''; if ($target eq 'web') { - $currentstring = $token->[2]; + $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 = ''; @@ -3068,7 +3207,6 @@ sub end_wbr { return $currentstring; } - #-- <hideweboutput> tag sub start_hideweboutput { my ($target,$token) = @_;