--- loncom/xml/londefdef.pm 2003/07/14 14:29:26 1.153
+++ loncom/xml/londefdef.pm 2003/09/05 19:35:40 1.171
@@ -1,7 +1,7 @@
# The LearningOnline Network with CAPA
# Tags Default Definition Module
#
-# $Id: londefdef.pm,v 1.153 2003/07/14 14:29:26 sakharuk Exp $
+# $Id: londefdef.pm,v 1.171 2003/09/05 19:35:40 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();
+$Apache::londefdef::TD_redirection=0;
+
BEGIN {
&Apache::lonxml::register('Apache::londefdef',('a','abbr','acronym','accessrule','address','allow','applet','area','b','base','basefont','bgo','bgsound','big','blink','blockquote','blankspace','body','br','button','caption','center','cite','code','col','colgroup','dd','del','dfn','dir','div','dl','dt','em','embed','externallink','fieldset','font','form','frame','frameset','h1','h2','h3','h4','h5','h6','head','hr','html','i','iframe','img','input','ins','insert','isindex','kbd','keygen','label','layer','legend','li','link','m','map','marquee','menu','meta','multicol','nobr','noembed','noframes','nolayer','noscript','object','ol','optgroup','option','output','p','param','pre','q','s','samp','select','server','small','spacer','span','strike','strong','sub','sup','table','tbody','td','textarea','tfoot','th','thead','title','tr','tt','tthoption','u','ul','var','wbr','hideweboutput'));
@@ -163,9 +164,11 @@ sub start_html {
\renewcommand{\deg}{$^{\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='<title>';
@@ -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];
@@ -1738,7 +1799,7 @@ 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--;
@@ -1774,7 +1835,7 @@ sub end_table {
return $currentstring;
}
-#-- <tr> tag
+#-- <tr> tag (end tag optional)
sub start_tr {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
my $currentstring = '';
@@ -1797,72 +1858,121 @@ sub start_tr {
}
sub end_tr {
- my ($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 = '';
@@ -1928,10 +2038,9 @@ 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);
@@ -1939,12 +2048,11 @@ 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 $src) {
#defines the default size of image
@@ -1969,6 +2077,7 @@ sub start_img {
} elsif ($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!(.*)/([^/]*)$!) {
@@ -2208,6 +2317,29 @@ 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) = @_;
@@ -2354,7 +2486,7 @@ sub start_base {
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[4];
- }
+ }
return $currentstring;
}
@@ -2994,7 +3126,7 @@ sub end_tbody {
return $currentstring;
}
-#-- <tfoot> tag
+#-- <tfoot> tag (end tag optional)
sub start_tfoot {
my ($target,$token) = @_;
my $currentstring = '';
@@ -3013,7 +3145,7 @@ sub end_tfoot {
return $currentstring;
}
-#-- <thead> tag
+#-- <thead> tag (end tag optional)
sub start_thead {
my ($target,$token) = @_;
my $currentstring = '';
@@ -3038,7 +3170,9 @@ sub start_var {
my $currentstring = '';
if ($target eq 'web') {
$currentstring = $token->[4];
- }
+ } elsif ($target eq 'tex') {
+ $currentstring = '\textit{';
+ }
return $currentstring;
}
@@ -3046,12 +3180,14 @@ sub end_var {
my ($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 = '';
@@ -3070,7 +3206,6 @@ sub end_wbr {
return $currentstring;
}
-
#-- <hideweboutput> tag
sub start_hideweboutput {
my ($target,$token) = @_;