--- loncom/xml/lonxml.pm 2000/06/19 15:52:29 1.1
+++ loncom/xml/lonxml.pm 2001/06/02 19:55:46 1.85
@@ -1,1305 +1,803 @@
-package Apache::lonxml;
-
+# The LearningOnline Network with CAPA
+# XML Parser Module
+#
+# last modified 06/26/00 by Alexander Sakharuk
+# 11/6 Gerd Kortemeyer
+# 6/1/1 Gerd Kortemeyer
+# 2/21,3/13 Guy
+# 3/29,5/4 Gerd Kortemeyer
+# 5/10 Scott Harrison
+# 5/26 Gerd Kortemeyer
+# 5/27 H. K. Ng
+# 6/2 Gerd Kortemeyer
+
+package Apache::lonxml;
+use vars
+qw(@pwd @outputstack $redirection $import @extlinks $metamode $evaluate %insertlist @namespace);
use strict;
use HTML::TokeParser;
use Safe;
+use Safe::Hole;
+use Math::Cephes qw(:trigs :hypers :bessels erf erfc);
+use Opcode;
+
+sub register {
+ my $space;
+ my @taglist;
+ my $temptag;
+ ($space,@taglist) = @_;
+ foreach $temptag (@taglist) {
+ $Apache::lonxml::alltags{$temptag}=$space;
+ }
+}
+
use Apache::Constants qw(:common);
use Apache::lontexconvert;
+use Apache::style;
+use Apache::run;
+use Apache::londefdef;
+use Apache::scripttag;
+use Apache::edit;
+use Apache::lonnet;
+use Apache::File;
+
+#================================================== Main subroutine: xmlparse
+#debugging control, to turn on debugging modify the correct handler
+$Apache::lonxml::debug=0;
+
+#path to the directory containing the file currently being processed
+@pwd=();
+
+#these two are used for capturing a subset of the output for later processing,
+#don't touch them directly use &startredirection and &endredirection
+@outputstack = ();
+$redirection = 0;
+
+#controls wheter the <import> tag actually does
+$import = 1;
+@extlinks=();
+
+# meta mode is a bit weird only some output is to be turned off
+#<output> tag turns metamode off (defined in londefdef.pm)
+$metamode = 0;
+
+# turns on and of run::evaluate actually derefencing var refs
+$evaluate = 1;
+
+# data structure for eidt mode, determines what tags can go into what other tags
+%insertlist=();
+
+#stores the list of active tag namespaces
+@namespace=();
+
+sub xmlbegin {
+ my $output='';
+ if ($ENV{'browser.mathml'}) {
+ $output='<?xml version="1.0"?>'
+ .'<?xml-stylesheet type="text/css" href="/adm/MathML/mathml.css"?>'
+ .'<!DOCTYPE html SYSTEM "/adm/MathML/mathml.dtd" '
+ .'[<!ENTITY mathns "http://www.w3.org/1998/Math/MathML">]>'
+ .'<html xmlns:math="http://www.w3.org/1998/Math/MathML" '
+ .'xmlns="http://www.w3.org/TR/REC-html40">';
+ } else {
+ $output='<html>';
+ }
+ return $output;
+}
+
+sub xmlend {
+ return '</html>';
+}
+
+sub fontsettings() {
+ my $headerstring='';
+ if (($ENV{'browser.os'} eq 'mac') && (!$ENV{'browser.mathml'})) {
+ $headerstring.=
+ '<meta Content-Type="text/html; charset=x-mac-roman">';
+ }
+ return $headerstring;
+}
+
+sub registerurl {
+ return (<<ENDSCRIPT);
+<script language="JavaScript">
+// BEGIN LON-CAPA Internal
+ function LONCAPAreg() {
+ if (window.location.pathname!="/res/adm/pages/menu.html") {
+ menu=window.open("","LONCAPAmenu");
+ menu.currentURL=window.location.pathname;
+ menu.currentStale=0;
+ menu.clearbut(3,1);
+ menu.switchbutton
+ (8,1,'eval.gif','evaluate','this','gopost("/adm/evaluate",currentURL)');
+ menu.switchbutton
+ (8,2,'fdbk.gif','feedback','on this','gopost("/adm/feedback",currentURL)');
+ menu.switchbutton
+ (8,3,'prt.gif','prepare','printout','gopost("/adm/printout",currentURL)');
+ menu.switchbutton
+ (2,1,'back.gif','backward','','gopost("/adm/flip","back:"+currentURL)');
+ menu.switchbutton
+ (2,3,'forw.gif','forward','','gopost("/adm/flip","forward:"+currentURL)');
+ }
+ }
+
+ function LONCAPAstale() {
+ if (window.location.pathname!="/res/adm/pages/menu.html") {
+ menu=window.open("","LONCAPAmenu");
+ menu.currentStale=1;
+ menu.clearbut(2,1);
+ menu.clearbut(2,3);
+ menu.clearbut(8,1);
+ menu.clearbut(8,2);
+ menu.clearbut(8,3);
+ menu.switchbutton
+ (3,1,'reload.gif','return','location','go(currentURL)');
+ }
+ }
+// END LON-CAPA Internal
+</script>
+ENDSCRIPT
+}
+
+sub loadevents() {
+ return 'LONCAPAreg();';
+}
+sub unloadevents() {
+ return 'LONCAPAstale();';
+}
-#======================================================= Main subroutine: xmlparse
+sub printalltags {
+ my $temp;
+ foreach $temp (sort keys %Apache::lonxml::alltags) {
+ &Apache::lonxml::debug("$temp -- $Apache::lonxml::alltags{$temp}");
+ }
+}
sub xmlparse {
- my ($target,$content_file_string,%style_for_target) = @_;
- my $pars = HTML::TokeParser->new(\$content_file_string);
- my $currentstring = '';
- my $finaloutput = '';
- my $newarg = '';
- my $tempostring = '';
- my $tempocont = '';
- my $safeeval = new Safe;
-
-#------------------------- Redefinition of the target in the case of compound target
- ($target, my @tenta) = split('&&',$target);
-#------------------------------ Stack definition (in stack we have all current tags)
+ my ($target,$content_file_string,$safeinit,%style_for_target) = @_;
+ if ($target eq 'meta') {
+ $Apache::lonxml::redirection = 0;
+ $Apache::lonxml::metamode = 1;
+ $Apache::lonxml::evaluate = 1;
+ $Apache::lonxml::import = 0;
+ } elsif ($target eq 'grade') {
+ &startredirection;
+ $Apache::lonxml::metamode = 0;
+ $Apache::lonxml::evaluate = 1;
+ $Apache::lonxml::import = 1;
+ } elsif ($target eq 'modified') {
+ $Apache::lonxml::redirection = 0;
+ $Apache::lonxml::metamode = 0;
+ $Apache::lonxml::evaluate = 0;
+ $Apache::lonxml::import = 0;
+ } else {
+ $Apache::lonxml::redirection = 0;
+ $Apache::lonxml::metamode = 0;
+ $Apache::lonxml::evaluate = 1;
+ $Apache::lonxml::import = 1;
+ }
+ #&printalltags();
+ my @pars = ();
+ @Apache::lonxml::pwd=();
+ my $pwd=$ENV{'request.filename'};
+ $pwd =~ s:/[^/]*$::;
+ &newparser(\@pars,\$content_file_string,$pwd);
+ my $currentstring = '';
+ my $finaloutput = '';
+ my $newarg = '';
+ my $result;
+
+ my $safeeval = new Safe;
+ my $safehole = new Safe::Hole;
+ &init_safespace($target,$safeeval,$safehole,$safeinit);
+#-------------------- Redefinition of the target in the case of compound target
+
+ ($target, my @tenta) = split('&&',$target);
+
+ my @stack = ();
+ my @parstack = ();
+ &initdepth;
+ my $token;
+ while ( $#pars > -1 ) {
+ while ($token = $pars[$#pars]->get_token) {
+ if (($token->[0] eq 'T') || ($token->[0] eq 'C') || ($token->[0] eq 'D') ) {
+ if ($metamode<1) { $result=$token->[1]; }
+ } elsif ($token->[0] eq 'PI') {
+ if ($metamode<1) { $result=$token->[2]; }
+ } elsif ($token->[0] eq 'S') {
+ # add tag to stack
+ push (@stack,$token->[1]);
+ # add parameters list to another stack
+ push (@parstack,&parstring($token));
+ &increasedepth($token);
+ if (exists $style_for_target{$token->[1]}) {
+ if ($Apache::lonxml::redirection) {
+ $Apache::lonxml::outputstack['-1'] .=
+ &recurse($style_for_target{$token->[1]},$target,$safeeval,
+ \%style_for_target,@parstack);
+ } else {
+ $finaloutput .= &recurse($style_for_target{$token->[1]},$target,
+ $safeeval,\%style_for_target,@parstack);
+ }
+ } else {
+ $result = &callsub("start_$token->[1]", $target, $token, \@stack,
+ \@parstack, \@pars, $safeeval, \%style_for_target);
+ }
+ } elsif ($token->[0] eq 'E') {
+ #clear out any tags that didn't end
+ while ($token->[1] ne $stack[$#stack] && ($#stack > -1)) {
+ &Apache::lonxml::warning("Unbalanced tags in resource $stack['-1']");
+ pop @stack;pop @parstack;&decreasedepth($token);
+ }
+
+ if (exists $style_for_target{'/'."$token->[1]"}) {
+ if ($Apache::lonxml::redirection) {
+ $Apache::lonxml::outputstack['-1'] .=
+ &recurse($style_for_target{'/'."$token->[1]"},
+ $target,$safeeval,\%style_for_target,@parstack);
+ } else {
+ $finaloutput .= &recurse($style_for_target{'/'."$token->[1]"},
+ $target,$safeeval,\%style_for_target,
+ @parstack);
+ }
+
+ } else {
+ $result = &callsub("end_$token->[1]", $target, $token, \@stack,
+ \@parstack, \@pars,$safeeval, \%style_for_target);
+ }
+ } else {
+ &Apache::lonxml::error("Unknown token event :$token->[0]:$token->[1]:");
+ }
+ #evaluate variable refs in result
+ if ($result ne "") {
+ if ( $#parstack > -1 ) {
+ if ($Apache::lonxml::redirection) {
+ $Apache::lonxml::outputstack['-1'] .=
+ &Apache::run::evaluate($result,$safeeval,$parstack[$#parstack]);
+ } else {
+ $finaloutput .= &Apache::run::evaluate($result,$safeeval,
+ $parstack[$#parstack]);
+ }
+ } else {
+ $finaloutput .= &Apache::run::evaluate($result,$safeeval,'');
+ }
+ $result = '';
+ }
+ if ($token->[0] eq 'E') {
+ pop @stack;pop @parstack;&decreasedepth($token);
+ }
+ }
+ pop @pars;
+ pop @Apache::lonxml::pwd;
+ }
+
+# if ($target eq 'meta') {
+# $finaloutput.=&endredirection;
+# }
+
+ if (($ENV{'QUERY_STRING'}) && ($target eq 'web')) {
+ $finaloutput=&afterburn($finaloutput);
+ }
- my @stack = ();
- my @parstack = ();
+ return $finaloutput;
+}
-#------------------------------------------ Parse input string (content_file_string)
-
- my $token;
- while ($token = $pars->get_token) {
- if ($token->[0] eq 'T') {
- $finaloutput .= $token->[1];
- $tempocont .= $token->[1];
- } elsif ($token->[0] eq 'S') {
-#------------------------------------------------------------------ add tag to stack
- push (@stack,$token->[1]);
-#---------------------------------------------- add parameters list to another stack
- map {$tempostring .= "$_=$token->[2]->{$_},"} @{$token->[3]};
- push (@parstack,$tempostring);
- $tempostring = '';
- $tempocont = '';
-
- if (exists $style_for_target{$token->[1]}) {
-
-#--------------------------------------------------------- use style file definition
-
- $newarg = $style_for_target{$token->[1]};
-
- if (index($newarg,'script') != -1 ) {
- my $pat = HTML::TokeParser->new(\$newarg);
- my $tokenpat;
- my $partstring = '';
- my $oustring = '';
- my $outputstring;
-
- while ($tokenpat = $pat->get_token) {
- if ($tokenpat->[0] eq 'T') {
- $oustring .= $tokenpat->[1];
- } elsif ($tokenpat->[0] eq 'S') {
- if ($tokenpat->[1] eq 'script') {
- while ($tokenpat = $pat->get_token and $tokenpat->[1] ne 'script') {
- if ($tokenpat->[0] eq 'S') {
- $partstring .= $tokenpat->[4];
- } elsif ($tokenpat->[0] eq 'T') {
- $partstring .= $tokenpat->[1];
- } elsif ($tokenpat->[0] eq 'E') {
- $partstring .= $tokenpat->[2];
- }
- }
-
- map {$partstring =~ s/\$$_/$token->[2]->{$_}/g; } @{$token->[3]};
-
- &run($partstring,$safeeval);
- $partstring = '';
- } elsif ($tokenpat->[1] eq 'evaluate') {
- $outputstring = &evaluate($tokenpat->[2]{expression},$safeeval);
- $oustring .= $outputstring;
- } else {
- $oustring .= $tokenpat->[4];
- }
- } elsif ($tokenpat->[0] eq 'E' and $tokenpat->[1] ne 'evaluate') {
- $oustring .= $tokenpat->[1];
- }
- }
- $newarg = $oustring;
- } else {
- map {$newarg =~ s/\$$_/$token->[2]->{$_}/g; } @{$token->[3]};
- }
- $finaloutput .= $newarg;
- } else {
-#----------------------------------------------------- use default definition of tag
- my $sub="start_$token->[1]";
-
- {
- no strict 'refs';
- if (defined (&$sub)) {
- $currentstring = &$sub($target,$token,\@parstack);
- $finaloutput .= $currentstring;
- $currentstring = '';
- } else {
- $finaloutput .= $token->[4];
- }
- use strict 'refs';
- }
- }
- } elsif ($token->[0] eq 'E') {
- pop @stack;
- unless (exists $style_for_target{$token->[1]}) {
- my $sub="end_$token->[1]";
- {
- no strict 'refs';
- if (defined (&$sub)) {
- $currentstring = &$sub($target,$token,\@parstack);
- $finaloutput .= $currentstring;
- $currentstring = '';
- } else {
- $finaloutput .= $token->[4];
- }
- use strict 'refs';
- }
- }
-#------------------------------------------------------- end tag from the style file
- if (exists $style_for_target{'/'."$token->[1]"}) {
- $newarg = $style_for_target{'/'."$token->[1]"};
- my @very_temp = split(',',@parstack[$#parstack]);
- map {my @ret= split('=',$_); $newarg =~ s/\$$ret[0]/$ret[1]/g; } @very_temp;
- $finaloutput .= $newarg;
- }
- pop @parstack;
+sub recurse {
+
+ my @innerstack = ();
+ my @innerparstack = ();
+ my ($newarg,$target,$safeeval,$style_for_target,@parstack) = @_;
+ my @pat = ();
+ &newparser(\@pat,\$newarg);
+ my $tokenpat;
+ my $partstring = '';
+ my $output='';
+ my $decls='';
+ while ( $#pat > -1 ) {
+ while ($tokenpat = $pat[$#pat]->get_token) {
+ if (($tokenpat->[0] eq 'T') || ($tokenpat->[0] eq 'C') || ($tokenpat->[0] eq 'D') ) {
+ if ($metamode<1) { $partstring=$tokenpat->[1]; }
+ } elsif ($tokenpat->[0] eq 'PI') {
+ if ($metamode<1) { $partstring=$tokenpat->[2]; }
+ } elsif ($tokenpat->[0] eq 'S') {
+ push (@innerstack,$tokenpat->[1]);
+ push (@innerparstack,&parstring($tokenpat));
+ &increasedepth($tokenpat);
+ $partstring = &callsub("start_$tokenpat->[1]", $target, $tokenpat,
+ \@innerstack, \@innerparstack, \@pat,
+ $safeeval, $style_for_target);
+ } elsif ($tokenpat->[0] eq 'E') {
+ #clear out any tags that didn't end
+ while ($tokenpat->[1] ne $innerstack[$#innerstack]
+ && ($#innerstack > -1)) {
+ &Apache::lonxml::warning("Unbalanced tags in resource $innerstack['-1']");
+ pop @innerstack;pop @innerparstack;&decreasedepth($tokenpat);
+ }
+ $partstring = &callsub("end_$tokenpat->[1]", $target, $tokenpat,
+ \@innerstack, \@innerparstack, \@pat,
+ $safeeval, $style_for_target);
+ } else {
+ &Apache::lonxml::error("Unknown token event :$tokenpat->[0]:$tokenpat->[1]:");
+ }
+ #pass both the variable to the style tag, and the tag we
+ #are processing inside the <definedtag>
+ if ( $partstring ne "" ) {
+ if ( $#parstack > -1 ) {
+ if ( $#innerparstack > -1 ) {
+ $decls= $parstack[$#parstack].$innerparstack[$#innerparstack];
+ } else {
+ $decls= $parstack[$#parstack];
+ }
+ } else {
+ if ( $#innerparstack > -1 ) {
+ $decls=$innerparstack[$#innerparstack];
+ } else {
+ $decls='';
+ }
+ }
+ $output .= &Apache::run::evaluate($partstring,$safeeval,$decls);
+ $partstring = '';
+ }
+ if ($tokenpat->[0] eq 'E') { pop @innerstack;pop @innerparstack;
+ &decreasedepth($tokenpat);}
+ }
+ pop @pat;
+ pop @Apache::lonxml::pwd;
+ }
+ return $output;
+}
+
+sub callsub {
+ my ($sub,$target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
+ my $currentstring='';
+ my $nodefault;
+ {
+ my $sub1;
+ no strict 'refs';
+ if ($target eq 'edit' && $token->[0] eq 'S') {
+ $currentstring = &Apache::edit::tag_start($target,$token,$tagstack,
+ $parstack,$parser,
+ $safeeval,$style);
+ }
+ my $tag=$token->[1];
+ my $space=$Apache::lonxml::alltags{$tag};
+ if (!$space) {
+ $tag=~tr/A-Z/a-z/;
+ $sub=~tr/A-Z/a-z/;
+ $space=$Apache::lonxml::alltags{$tag}
+ }
+ if ($space) {
+ #&Apache::lonxml::debug("Calling sub $sub in $space $metamode<br />\n");
+ $sub1="$space\:\:$sub";
+ $Apache::lonxml::curdepth=join('_',@Apache::lonxml::depthcounter);
+ ($currentstring,$nodefault) = &$sub1($target,$token,$tagstack,
+ $parstack,$parser,$safeeval,
+ $style);
+ } else {
+ #&Apache::lonxml::debug("NOT Calling sub $sub in $space $metamode<br />\n");
+ if ($metamode <1) {
+ if (defined($token->[4]) && ($metamode < 1)) {
+ $currentstring = $token->[4];
+ } else {
+ $currentstring = $token->[2];
+ }
+ }
+ }
+# &Apache::lonxml::debug("nodefalt:$nodefault:");
+ if ($currentstring eq '' && $nodefault eq '') {
+ if ($target eq 'edit') {
+ &Apache::lonxml::debug("doing default edit for $token->[1]");
+ if ($token->[0] eq 'S') {
+ $currentstring = &Apache::edit::tag_start($target,$token);
+ } elsif ($token->[0] eq 'E') {
+ $currentstring = &Apache::edit::tag_end($target,$token);
+ }
+ } elsif ($target eq 'modified') {
+ if ($token->[0] eq 'S') {
+ $currentstring = $token->[4];
+ $currentstring.=&Apache::edit::handle_insert();
+ } else {
+ $currentstring = $token->[2];
}
+ }
}
- return $finaloutput;
+ use strict 'refs';
+ }
+ return $currentstring;
+}
+
+sub init_safespace {
+ my ($target,$safeeval,$safehole,$safeinit) = @_;
+ $safeeval->permit("entereval");
+ $safeeval->permit(":base_math");
+ $safeeval->permit("sort");
+ $safeeval->deny(":base_io");
+ $safehole->wrap(\&Apache::lonnet::EXT,$safeeval,'&EXT');
+
+ $safehole->wrap(\&Math::Cephes::asin,$safeeval,'&asin');
+ $safehole->wrap(\&Math::Cephes::acos,$safeeval,'&acos');
+ $safehole->wrap(\&Math::Cephes::atan,$safeeval,'&atan');
+ $safehole->wrap(\&Math::Cephes::sinh,$safeeval,'&sinh');
+ $safehole->wrap(\&Math::Cephes::cosh,$safeeval,'&cosh');
+ $safehole->wrap(\&Math::Cephes::tanh,$safeeval,'&tanh');
+ $safehole->wrap(\&Math::Cephes::asinh,$safeeval,'&asinh');
+ $safehole->wrap(\&Math::Cephes::acosh,$safeeval,'&acosh');
+ $safehole->wrap(\&Math::Cephes::atanh,$safeeval,'&atanh');
+ $safehole->wrap(\&Math::Cephes::erf,$safeeval,'&erf');
+ $safehole->wrap(\&Math::Cephes::erfc,$safeeval,'&erfc');
+ $safehole->wrap(\&Math::Cephes::j0,$safeeval,'&j0');
+ $safehole->wrap(\&Math::Cephes::j1,$safeeval,'&j1');
+ $safehole->wrap(\&Math::Cephes::jn,$safeeval,'&jn');
+ $safehole->wrap(\&Math::Cephes::jv,$safeeval,'&jv');
+ $safehole->wrap(\&Math::Cephes::y0,$safeeval,'&y0');
+ $safehole->wrap(\&Math::Cephes::y1,$safeeval,'&y1');
+ $safehole->wrap(\&Math::Cephes::yn,$safeeval,'&yn');
+ $safehole->wrap(\&Math::Cephes::yv,$safeeval,'&yv');
+
+#need to inspect this class of ops
+# $safeeval->deny(":base_orig");
+ $safeinit .= ';$external::target='.$target.';';
+ $safeinit .= ';$external::randomseed='.&Apache::lonnet::rndseed().';';
+ &Apache::run::run($safeinit,$safeeval);
+}
+
+sub startredirection {
+ $Apache::lonxml::redirection++;
+ push (@Apache::lonxml::outputstack, '');
+}
+
+sub endredirection {
+ if (!$Apache::lonxml::redirection) {
+ &Apache::lonxml::error("Endredirection was called, before a startredirection, perhaps you have unbalanced tags. Some debuging information:".join ":",caller);
+ return '';
+ }
+ $Apache::lonxml::redirection--;
+ pop @Apache::lonxml::outputstack;
+}
+
+sub initdepth {
+ @Apache::lonxml::depthcounter=();
+ $Apache::lonxml::depth=-1;
+ $Apache::lonxml::olddepth=-1;
+}
+
+sub increasedepth {
+ my ($token) = @_;
+ $Apache::lonxml::depth++;
+ $Apache::lonxml::depthcounter[$Apache::lonxml::depth]++;
+ if ($Apache::lonxml::depthcounter[$Apache::lonxml::depth]==1) {
+ $Apache::lonxml::olddepth=$Apache::lonxml::depth;
+ }
+ my $curdepth=join('_',@Apache::lonxml::depthcounter);
+ &Apache::lonxml::debug("s $Apache::lonxml::depth : $Apache::lonxml::olddepth : $curdepth : $token->[1]\n");
+#print "<br />s $Apache::lonxml::depth : $Apache::lonxml::olddepth : $curdepth : $token->[1]\n";
}
+sub decreasedepth {
+ my ($token) = @_;
+ $Apache::lonxml::depth--;
+ if ($Apache::lonxml::depth<$Apache::lonxml::olddepth-1) {
+ $#Apache::lonxml::depthcounter--;
+ $Apache::lonxml::olddepth=$Apache::lonxml::depth+1;
+ }
+ if ( $Apache::lonxml::depth < -1) {
+ &Apache::lonxml::warning("Unbalanced tags in resource");
+ $Apache::lonxml::depth='-1';
+ }
+ my $curdepth=join('_',@Apache::lonxml::depthcounter);
+ &Apache::lonxml::debug("e $Apache::lonxml::depth : $Apache::lonxml::olddepth : $token->[1] : $curdepth\n");
+#print "<br />e $Apache::lonxml::depth : $Apache::lonxml::olddepth : $token->[1] : $curdepth\n";
+}
-#================================================================== style subroutine
+sub get_all_text {
-sub styleparser {
+ my($tag,$pars)= @_;
+ my $depth=0;
+ my $token;
+ my $result='';
+ if ( $tag =~ m:^/: ) {
+ my $tag=substr($tag,1);
+# &Apache::lonxml::debug("have:$tag:");
+ while (($depth >=0) && ($token = $pars->get_token)) {
+# &Apache::lonxml::debug("e token:$token->[0]:$depth:$token->[1]");
+ if (($token->[0] eq 'T')||($token->[0] eq 'C')||($token->[0] eq 'D')) {
+ $result.=$token->[1];
+ } elsif ($token->[0] eq 'PI') {
+ $result.=$token->[2];
+ } elsif ($token->[0] eq 'S') {
+ if ($token->[1] eq $tag) { $depth++; }
+ $result.=$token->[4];
+ } elsif ($token->[0] eq 'E') {
+ if ( $token->[1] eq $tag) { $depth--; }
+ #skip sending back the last end tag
+ if ($depth > -1) { $result.=$token->[2]; } else {
+ $pars->unget_token($token);
+ }
+ }
+ }
+ } else {
+ while ($token = $pars->get_token) {
+# &Apache::lonxml::debug("s token:$token->[0]:$depth:$token->[1]");
+ if (($token->[0] eq 'T')||($token->[0] eq 'C')||($token->[0] eq 'D')) {
+ $result.=$token->[1];
+ } elsif ($token->[0] eq 'PI') {
+ $result.=$token->[2];
+ } elsif ($token->[0] eq 'S') {
+ if ( $token->[1] eq $tag) {
+ $pars->unget_token($token); last;
+ } else {
+ $result.=$token->[4];
+ }
+ } elsif ($token->[0] eq 'E') {
+ $result.=$token->[2];
+ }
+ }
+ }
+# &Apache::lonxml::debug("Exit:$result:");
+ return $result
+}
- my ($target,$content_style_string) = @_;
-
-#------------------------------------------------ target redefinition (if necessary)
-
- my @target_string = '';
- my $element;
-
- ($element,@target_string) = split ('&&',$target);
-
- map {$content_style_string =~ s/\<(.*)$_\>/\<$1$element\>/g; } @target_string;
-
- $target = $element;
-
-#------------------------------------------------- create a table for defined target
-#---------------------------------------------- from the information from Style File
-
- my @value_style = ();
- my $current_key = '';
- my $current_value = '';
-
- my $pstyle = HTML::TokeParser->new(\$content_style_string);
-
- my $stoken;
-
- while ($stoken = $pstyle->get_token) {
-#---------------------------------------------------------- start for tag definition
- if ($stoken->[0] eq 'S' and $stoken->[1] eq 'definetag') {
-#------------------------------------------------------------------- new key in hash
- $current_key = $stoken->[2]{name};
- if ($target eq 'meta') {
-#-------------------------------------------------- reserved for the metadate output
-
-
- } else {
-#-------------------------------------------------------------------- outtext output
- while ($stoken = $pstyle->get_token and $stoken->[1] ne 'outtext') {
- }
- while ($stoken = $pstyle->get_token and $stoken->[0] ne 'S') {
- $current_value .= $stoken->[1];
- }
- while ($stoken->[1] ne 'definetag') {
- if ($stoken->[0] eq 'S' and $stoken->[1] eq $target) {
- while ($stoken = $pstyle->get_token) {
- if ($stoken->[1] ne $target) {
- if ($stoken->[0] eq 'S') {
- $current_value .= $stoken->[4];
- }
- if ($stoken->[0] eq 'E') {
- $current_value .= $stoken->[2];
- }
- if ($stoken->[0] eq 'T') {
- $current_value .= $stoken->[1];
- }
- } else {
- last;
- }
- }
- } elsif ($stoken->[0] eq 'S' and $stoken->[1] ne $target) {
- while ($stoken = $pstyle->get_token and $stoken->[0] ne 'E') {
- }
- }
-
- while ($stoken = $pstyle->get_token) {
- if ($stoken->[0] eq 'T') {
- $current_value .= $stoken->[1];
- }
- if ($stoken->[0] eq 'E') {
- last;
- }
- if ($stoken->[0] eq 'S') {
- last;
- }
- }
-
- }
- }
-
- }
- push (@value_style,lc $current_key,$current_value);
- $current_key = '';
- $current_value = '';
+sub newparser {
+ my ($parser,$contentref,$dir) = @_;
+ push (@$parser,HTML::TokeParser->new($contentref));
+ $$parser['-1']->xml_mode('1');
+ if ( $dir eq '' ) {
+ push (@Apache::lonxml::pwd, $Apache::lonxml::pwd[$#Apache::lonxml::pwd]);
+ } else {
+ push (@Apache::lonxml::pwd, $dir);
+ }
+# &Apache::lonxml::debug("pwd:$#Apache::lonxml::pwd");
+# &Apache::lonxml::debug("pwd:$Apache::lonxml::pwd[$#Apache::lonxml::pwd]");
+}
+sub parstring {
+ my ($token) = @_;
+ my $temp='';
+ map {
+ unless ($_=~/\W/) {
+ my $val=$token->[2]->{$_};
+ $val =~ s/([\%\@\\])/\\$1/g;
+ #if ($val =~ m/^[\%\@]/) { $val="\\".$val; }
+ $temp .= "my \$$_=\"$val\";"
+ }
+ } @{$token->[3]};
+ return $temp;
+}
+
+sub writeallows {
+ my $thisurl='/res/'.&Apache::lonnet::declutter(shift);
+ my $thisdir=$thisurl;
+ $thisdir=~s/\/[^\/]+$//;
+ my %httpref=();
+ map {
+ $httpref{'httpref.'.
+ &Apache::lonnet::hreflocation($thisdir,$_)}=$thisurl; } @extlinks;
+ &Apache::lonnet::appenv(%httpref);
+}
+
+#
+# Afterburner handles anchors, highlights and links
+#
+sub afterburn {
+ my $result=shift;
+ map {
+ my ($name, $value) = split(/=/,$_);
+ $value =~ tr/+/ /;
+ $value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
+ if (($name eq 'highlight')||($name eq 'anchor')||($name eq 'link')) {
+ unless ($ENV{'form.'.$name}) {
+ $ENV{'form.'.$name}=$value;
+ }
+ }
+ } (split(/&/,$ENV{'QUERY_STRING'}));
+ if ($ENV{'form.highlight'}) {
+ map {
+ my $anchorname=$_;
+ my $matchthis=$anchorname;
+ $matchthis=~s/\_+/\\s\+/g;
+ $result=~s/($matchthis)/\<font color=\"red\"\>$1\<\/font\>/gs;
+ } split(/\,/,$ENV{'form.highlight'});
+ }
+ if ($ENV{'form.link'}) {
+ map {
+ my ($anchorname,$linkurl)=split(/\>/,$_);
+ my $matchthis=$anchorname;
+ $matchthis=~s/\_+/\\s\+/g;
+ $result=~s/($matchthis)/\<a href=\"$linkurl\"\>$1\<\/a\>/gs;
+ } split(/\,/,$ENV{'form.link'});
+ }
+ if ($ENV{'form.anchor'}) {
+ my $anchorname=$ENV{'form.anchor'};
+ my $matchthis=$anchorname;
+ $matchthis=~s/\_+/\\s\+/g;
+ $result=~s/($matchthis)/\<a name=\"$anchorname\"\>$1\<\/a\>/s;
+ $result.=(<<"ENDSCRIPT");
+<script>
+ document.location.hash='$anchorname';
+</script>
+ENDSCRIPT
+ }
+ return $result;
+}
+
+sub storefile {
+ my ($file,$contents)=@_;
+ if (my $fh=Apache::File->new('>'.$file)) {
+ print $fh $contents;
+ $fh->close();
+ }
+}
+
+sub inserteditinfo {
+ my ($result,$filecontents)=@_;
+ unless ($filecontents) {
+ $filecontents=(<<SIMPLECONTENT);
+<html>
+<head>
+<title>
+ Title of Document Goes Here
+</title>
+</head>
+<body bgcolor="#FFFFFF">
+
+ Body of Document Goes Here
+
+</body>
+</html>
+SIMPLECONTENT
}
-
- my %style_for_target = @value_style;
-
-#-------------------------------------------------------------------- check printing
-# while (($current_key,$current_value) = each %style_for_target) {
-# print "$current_key => $current_value\n";
-# }
+ my $editheader='<a href="#editsection">Edit below</a><hr />';
+ my $editfooter=(<<ENDFOOTER);
+<hr />
+<a name="editsection" />
+<form method="post">
+<textarea cols="80" rows="40" name="filecont">$filecontents</textarea>
+<br />
+<input type="submit" name="savethisfile" value="Save this file" />
+</form>
+ENDFOOTER
+ $result=~s/(\<body[^\>]*\>)/$1$editheader/is;
+ $result=~s/(\<\/body\>)/$editfooter/is;
+ return $result;
+}
+
+sub handler {
+ my $request=shift;
+
+ my $target='web';
+
+ $Apache::lonxml::debug=0;
- return %style_for_target;
+ if ($ENV{'browser.mathml'}) {
+ $request->content_type('text/xml');
+ } else {
+ $request->content_type('text/html');
+ }
+ $request->send_http_header;
+
+ return OK if $request->header_only;
+
+
+ my $file=&Apache::lonnet::filelocation("",$request->uri);
+#
+# Edit action? Save file.
+#
+ unless ($ENV{'request.state'} eq 'published') {
+ if ($ENV{'form.savethisfile'}) {
+ &storefile($file,$ENV{'form.filecont'});
+ }
+ }
+ my %mystyle;
+ my $result = '';
+ my $filecontents=&Apache::lonnet::getfile($file);
+ if ($filecontents == -1) {
+ $result=(<<ENDNOTFOUND);
+<html>
+<head>
+<title>File not found</title>
+</head>
+<body bgcolor="#FFFFFF">
+<b>File not found: $file</b>
+</body>
+</html>
+ENDNOTFOUND
+ $filecontents='';
+ } else {
+ $result = &Apache::lonxml::xmlparse($target,$filecontents,'',%mystyle);
+ }
+
+#
+# Edit action? Insert editing commands
+#
+ unless ($ENV{'request.state'} eq 'published') {
+ $result=&inserteditinfo($result,$filecontents);
+ }
+
+ $request->print($result);
+
+ writeallows($request->uri);
+ return OK;
+}
+
+sub debug {
+ if ($Apache::lonxml::debug eq 1) {
+ print "DEBUG:".$_[0]."<br />\n";
+ }
}
+sub error {
+ if (($Apache::lonxml::debug eq 1) || ($ENV{'request.state'} eq 'construct') ) {
+ print "<b>ERROR:</b>".$_[0]."<br />\n";
+ } else {
+ print "<b>An Error occured while processing this resource. The instructor has been notified.</b> <br />";
+ #notify author
+ &Apache::lonmsg::author_res_msg($ENV{'request.filename'},$_[0]);
+ #notify course
+ if ( $ENV{'request.course.id'} ) {
+ my $users=$ENV{'course.'.$ENV{'request.course.id'}.'.comment.email'};
+ foreach my $user (split /\,/, $users) {
+ ($user,my $domain) = split /:/, $user;
+ &Apache::lonmsg::user_normal_msg($user,$domain,"Error in $ENV{'request.filename'}",$_[0]);
+ }
+ }
+ #FIXME probably shouldn't have me get everything forever.
+ &Apache::lonmsg::user_normal_msg('albertel','msu',"Error in $ENV{'request.filename'}",$_[0]);
+ #&Apache::lonmsg::user_normal_msg('albertel','103',"Error in $ENV{'request.filename'}",$_[0]);
+ }
+}
-#=============================================================== Subroutine definition
-#--------------------------------------------------------------------------------- Run
- sub evaluate {
- my ($expression,$safeeval) = @_;
- return $safeeval->reval($expression);
- }
-
- sub run {
- my ($code,$safeeval) = @_;
- $safeeval->reval($code);
- }
-
-#===================================================================== TAG SUBROUTINES
-#----------------------------------------------------------------------------- <m> tag
- sub start_m {
- my ($target,$token) = @_;
- my $currentstring = '';
- if ($target eq 'web') {
- $currentstring = "\$out = lontexconvert::converted(\$in = '\$'.\"";
- } elsif ($target eq 'tex') {
- $currentstring = "\$";
- }
- return $currentstring;
- }
- sub end_m {
- my ($target,$token) = @_;
- my $currentstring = '';
- if ($target eq 'web') {
- $currentstring = "\".'\$') ";
- } elsif ($target eq 'tex') {
- $currentstring = "\$";
- }
- return $currentstring;
- }
-#-------------------------------------------------------------------------- <html> tag
- sub start_html {
- my ($target,$token) = @_;
- my $currentstring = '';
- if ($target eq 'web') {
- $currentstring = $token->[4];
- }
- return $currentstring;
- }
- sub end_html {
- my ($target,$token) = @_;
- my $currentstring = '';
- if ($target eq 'web') {
- $currentstring = $token->[2];
- }
- return $currentstring;
- }
-#-------------------------------------------------------------------------- <head> tag
- sub start_head {
- my ($target,$token) = @_;
- my $currentstring = '';
- if ($target eq 'web') {
- $currentstring = $token->[4];
- }
- return $currentstring;
- }
- sub end_head {
- my ($target,$token) = @_;
- my $currentstring = '';
- if ($target eq 'web') {
- $currentstring = $token->[2];
- }
- return $currentstring;
- }
-#--------------------------------------------------------------------------- <map> tag
- sub start_map {
- my ($target,$token) = @_;
- my $currentstring = '';
- if ($target eq 'web') {
- $currentstring = $token->[4];
- }
- return $currentstring;
- }
- sub end_map {
- my ($target,$token) = @_;
- my $currentstring = '';
- if ($target eq 'web') {
- $currentstring = $token->[2];
- }
- return $currentstring;
- }
-#------------------------------------------------------------------------ <applet> tag
- sub start_applet {
- my ($target,$token) = @_;
- my $currentstring = '';
- if ($target eq 'web') {
- $currentstring = $token->[4];
- }
- return $currentstring;
- }
- sub end_applet {
- my ($target,$token) = @_;
- my $currentstring = '';
- if ($target eq 'web') {
- $currentstring = $token->[2];
- }
- return $currentstring;
- }
-#------------------------------------------------------------------------ <select> tag
- sub start_select {
- my ($target,$token) = @_;
- my $currentstring = '';
- if ($target eq 'web') {
- $currentstring = $token->[4];
- }
- return $currentstring;
- }
- sub end_select {
- my ($target,$token) = @_;
- my $currentstring = '';
- if ($target eq 'web') {
- $currentstring = $token->[2];
- }
- return $currentstring;
- }
-#------------------------------------------------------------------------ <option> tag
- sub start_option {
- my ($target,$token) = @_;
- my $currentstring = '';
- if ($target eq 'web') {
- $currentstring = $token->[4];
- }
- return $currentstring;
- }
- sub end_option {
- my ($target,$token) = @_;
- my $currentstring = '';
- if ($target eq 'web') {
- $currentstring = $token->[2];
- }
- return $currentstring;
- }
-#------------------------------------------------------------------------- <input> tag
- sub start_input {
- my ($target,$token) = @_;
- my $currentstring = '';
- if ($target eq 'web') {
- $currentstring = $token->[4];
- }
- return $currentstring;
- }
- sub end_input {
- my ($target,$token) = @_;
- my $currentstring = '';
- if ($target eq 'web') {
- $currentstring = $token->[2];
- }
- return $currentstring;
- }
-#---------------------------------------------------------------------- <textarea> tag
- sub start_textarea {
- my ($target,$token) = @_;
- my $currentstring = '';
- if ($target eq 'web') {
- $currentstring = $token->[4];
- }
- return $currentstring;
- }
- sub end_textarea {
- my ($target,$token) = @_;
- my $currentstring = '';
- if ($target eq 'web') {
- $currentstring = $token->[2];
- }
- return $currentstring;
- }
-#-------------------------------------------------------------------------- <form> tag
- sub start_form {
- my ($target,$token) = @_;
- my $currentstring = '';
- if ($target eq 'web') {
- $currentstring = $token->[4];
- }
- return $currentstring;
- }
- sub end_form {
- my ($target,$token) = @_;
- my $currentstring = '';
- if ($target eq 'web') {
- $currentstring = $token->[2];
- }
- return $currentstring;
- }
-#------------------------------------------------------------------------- <title> tag
- sub start_title {
- my ($target,$token) = @_;
- my $currentstring = '';
- if ($target eq 'web') {
- $currentstring = $token->[4];
- }
- return $currentstring;
- }
- sub end_title {
- my ($target,$token) = @_;
- my $currentstring = '';
- if ($target eq 'web') {
- $currentstring = $token->[2];
- }
- return $currentstring;
- }
-#-------------------------------------------------------------------------- <meta> tag
- sub start_meta {
- my ($target,$token) = @_;
- my $currentstring = '';
- if ($target eq 'web') {
- $currentstring = $token->[4];
- }
- return $currentstring;
- }
- sub end_meta {
- my ($target,$token) = @_;
- my $currentstring = '';
- if ($target eq 'web') {
- $currentstring = $token->[2];
- }
- return $currentstring;
- }
-#-------------------------------------------------------------------------- <body> tag
- sub start_body {
- my ($target,$token) = @_;
- my $currentstring = '';
- if ($target eq 'web') {
- $currentstring = $token->[4];
- } elsif ($target eq 'tex') {
- $currentstring = " \\begin{document} ";
- }
- return $currentstring;
- }
- sub end_body {
- my ($target,$token) = @_;
- my $currentstring = '';
- if ($target eq 'web') {
- $currentstring = $token->[2];
- } elsif ($target eq 'tex') {
- $currentstring = " \\end{document}";
- }
- return $currentstring;
- }
-#------------------------------------------------------------------------ <center> tag
- sub start_center {
- my ($target,$token) = @_;
- my $currentstring = '';
- if ($target eq 'web') {
- $currentstring = $token->[4];
- } elsif ($target eq 'tex') {
- $currentstring = " \\begin{center} ";
- }
- return $currentstring;
- }
- sub end_center {
- my ($target,$token) = @_;
- my $currentstring = '';
- if ($target eq 'web') {
- $currentstring = $token->[2];
- } elsif ($target eq 'tex') {
- $currentstring = " \\end{center}";
- }
- return $currentstring;
- }
-#----------------------------------------------------------------------------- <b> tag
- sub start_b {
- my ($target,$token) = @_;
- my $currentstring = '';
- if ($target eq 'web') {
- $currentstring = $token->[4];
- } elsif ($target eq 'tex') {
- $currentstring = " {\\bf ";
- }
- return $currentstring;
- }
- sub end_b {
- my ($target,$token) = @_;
- my $currentstring = '';
- if ($target eq 'web') {
- $currentstring = $token->[2];
- } elsif ($target eq 'tex') {
- $currentstring = "}";
- }
- return $currentstring;
- }
-#------------------------------------------------------------------------ <strong> tag
- sub start_strong {
- my ($target,$token) = @_;
- my $currentstring = '';
- if ($target eq 'web') {
- $currentstring = $token->[4];
- } elsif ($target eq 'tex') {
- $currentstring = " {\\bf ";
- }
- return $currentstring;
- }
- sub end_strong {
- my ($target,$token) = @_;
- my $currentstring = '';
- if ($target eq 'web') {
-
- $currentstring = $token->[2];
- } elsif ($target eq 'tex') {
- $currentstring = "}";
- }
- return $currentstring;
- }
-#---------------------------------------------------------------------------- <h1> tag
- sub start_h1 {
- my ($target,$token) = @_;
- my $currentstring = '';
- if ($target eq 'web') {
- $currentstring .= $token->[4];
- } elsif ($target eq 'tex') {
- $currentstring .= "\\chapter{ ";
- }
- return $currentstring;
- }
- sub end_h1 {
- my ($target,$token) = @_;
- my $currentstring = '';
- if ($target eq 'web') {
- $currentstring .= $token->[2];
- } elsif ($target eq 'tex') {
- $currentstring .= "}";
- }
- return $currentstring;
- }
-#---------------------------------------------------------------------------- <h2> tag
- sub start_h2 {
- my ($target,$token) = @_;
- my $currentstring = '';
- if ($target eq 'web') {
- $currentstring .= $token->[4];
- } elsif ($target eq 'tex') {
- $currentstring .= "\\section{ ";
- }
- return $currentstring;
- }
- sub end_h2 {
- my ($target,$token) = @_;
- my $currentstring = '';
- if ($target eq 'web') {
- $currentstring .= $token->[2];
- } elsif ($target eq 'tex') {
- $currentstring .= "}";
- }
- return $currentstring;
- }
-#---------------------------------------------------------------------------- <h3> tag
- sub start_h3 {
- my ($target,$token) = @_;
- my $currentstring = '';
- if ($target eq 'web') {
- $currentstring .= $token->[4];
- } elsif ($target eq 'tex') {
- $currentstring .= "\\subsection{ ";
- }
- return $currentstring;
- }
- sub end_h3 {
- my ($target,$token) = @_;
- my $currentstring = '';
- if ($target eq 'web') {
- $currentstring .= $token->[2];
- } elsif ($target eq 'tex') {
- $currentstring .= "}";
- }
- return $currentstring;
- }
-#---------------------------------------------------------------------------- <h4> tag
- sub start_h4 {
- my ($target,$token) = @_;
- my $currentstring = '';
- if ($target eq 'web') {
- $currentstring .= $token->[4];
- } elsif ($target eq 'tex') {
- $currentstring .= "\\subsubsection{ ";
- }
- return $currentstring;
- }
- sub end_h4 {
- my ($target,$token) = @_;
- my $currentstring = '';
- if ($target eq 'web') {
- $currentstring .= $token->[2];
- } elsif ($target eq 'tex') {
- $currentstring .= "}";
- }
- return $currentstring;
- }
-#---------------------------------------------------------------------------- <h5> tag
- sub start_h5 {
- my ($target,$token) = @_;
- my $currentstring = '';
- if ($target eq 'web') {
- $currentstring .= $token->[4];
- } elsif ($target eq 'tex') {
- $currentstring .= "\\paragraph{ ";
- }
- return $currentstring;
- }
- sub end_h5 {
- my ($target,$token) = @_;
- my $currentstring = '';
- if ($target eq 'web') {
- $currentstring .= $token->[2];
- } elsif ($target eq 'tex') {
- $currentstring .= "}";
- }
- return $currentstring;
- }
-#---------------------------------------------------------------------------- <h6> tag
- sub start_h6 {
- my ($target,$token) = @_;
- my $currentstring = '';
- if ($target eq 'web') {
- $currentstring .= $token->[4];
- } elsif ($target eq 'tex') {
- $currentstring .= "\\subparagraph{ ";
- }
- return $currentstring;
- }
- sub end_h6 {
- my ($target,$token) = @_;
- my $currentstring = '';
- if ($target eq 'web') {
- $currentstring .= $token->[2];
- } elsif ($target eq 'tex') {
- $currentstring .= "}";
- }
- return $currentstring;
- }
-#-------------------------------------------------------------------------- <cite> tag
- sub start_cite {
- my ($target,$token) = @_;
- my $currentstring = '';
- if ($target eq 'web') {
- $currentstring .= $token->[4];
- } elsif ($target eq 'tex') {
- $currentstring .= "{ \\it ";
- }
- return $currentstring;
- }
- sub end_cite {
- my ($target,$token) = @_;
- my $currentstring = '';
- if ($target eq 'web') {
- $currentstring .= $token->[2];
- } elsif ($target eq 'tex') {
- $currentstring .= "}";
- }
- return $currentstring;
- }
-#----------------------------------------------------------------------------- <i> tag
- sub start_i {
- my ($target,$token) = @_;
- my $currentstring = '';
- if ($target eq 'web') {
- $currentstring .= $token->[4];
- } elsif ($target eq 'tex') {
- $currentstring .= "{ \\it ";
- }
- return $currentstring;
- }
- sub end_i {
- my ($target,$token) = @_;
- my $currentstring = '';
- if ($target eq 'web') {
- $currentstring .= $token->[2];
- } elsif ($target eq 'tex') {
- $currentstring .= "}";
- }
- return $currentstring;
- }
-#----------------------------------------------------------------------- <address> tag
- sub start_address {
- my ($target,$token) = @_;
- my $currentstring = '';
- if ($target eq 'web') {
- $currentstring .= $token->[4];
- } elsif ($target eq 'tex') {
- $currentstring .= "{ \\it ";
- }
- return $currentstring;
- }
- sub end_address {
- my ($target,$token) = @_;
- my $currentstring = '';
- if ($target eq 'web') {
- $currentstring .= $token->[2];
- } elsif ($target eq 'tex') {
- $currentstring .= "}";
- }
- return $currentstring;
- }
-#--------------------------------------------------------------------------- <dfn> tag
- sub start_dfn {
- my ($target,$token) = @_;
- my $currentstring = '';
- if ($target eq 'web') {
- $currentstring .= $token->[4];
- } elsif ($target eq 'tex') {
- $currentstring .= "{ \\it ";
- }
- return $currentstring;
- }
- sub end_dfn {
- my ($target,$token) = @_;
- my $currentstring = '';
- if ($target eq 'web') {
- $currentstring .= $token->[2];
- } elsif ($target eq 'tex') {
- $currentstring .= "}";
- }
- return $currentstring;
- }
-#---------------------------------------------------------------------------- <tt> tag
- sub start_tt {
- my ($target,$token) = @_;
- my $currentstring = '';
- if ($target eq 'web') {
- $currentstring .= $token->[4];
- } elsif ($target eq 'tex') {
- $currentstring .= "{ \\tt ";
- }
- return $currentstring;
- }
- sub end_tt {
- my ($target,$token) = @_;
- my $currentstring = '';
- if ($target eq 'web') {
- $currentstring .= $token->[2];
- } elsif ($target eq 'tex') {
- $currentstring .= "}";
- }
- return $currentstring;
- }
-#---------------------------------------------------------------------------- <kbd> tag
- sub start_kbd {
- my ($target,$token) = @_;
- my $currentstring = '';
- if ($target eq 'web') {
- $currentstring .= $token->[4];
- } elsif ($target eq 'tex') {
- $currentstring .= "{ \\tt ";
- }
- return $currentstring;
- }
- sub end_kbd {
- my ($target,$token) = @_;
- my $currentstring = '';
- if ($target eq 'web') {
- $currentstring .= $token->[2];
- } elsif ($target eq 'tex') {
- $currentstring .= "}";
- }
- return $currentstring;
- }
-#-------------------------------------------------------------------------- <code> tag
- sub start_code {
- my ($target,$token) = @_;
- my $currentstring = '';
- if ($target eq 'web') {
- $currentstring .= $token->[4];
- } elsif ($target eq 'tex') {
- $currentstring .= "{ \\tt ";
- }
- return $currentstring;
- }
- sub end_code {
- my ($target,$token) = @_;
- my $currentstring = '';
- if ($target eq 'web') {
- $currentstring .= $token->[2];
- } elsif ($target eq 'tex') {
- $currentstring .= "}";
- }
- return $currentstring;
- }
-#---------------------------------------------------------------------------- <em> tag
- sub start_em {
- my ($target,$token) = @_;
- my $currentstring = '';
- if ($target eq 'web') {
- $currentstring .= $token->[4];
- } elsif ($target eq 'tex') {
- $currentstring .= "{ \\emph ";
- }
- return $currentstring;
- }
- sub end_em {
- my ($target,$token) = @_;
- my $currentstring = '';
- if ($target eq 'web') {
- $currentstring .= $token->[2];
- } elsif ($target eq 'tex') {
- $currentstring .= "}";
- }
- return $currentstring;
- }
-#----------------------------------------------------------------------------- <q> tag
- sub start_q {
- my ($target,$token) = @_;
- my $currentstring = '';
- if ($target eq 'web') {
- $currentstring .= $token->[4];
- } elsif ($target eq 'tex') {
- $currentstring .= "{ \\emph ";
- }
- return $currentstring;
- }
- sub end_q {
- my ($target,$token) = @_;
- my $currentstring = '';
- if ($target eq 'web') {
- $currentstring .= $token->[2];
- } elsif ($target eq 'tex') {
- $currentstring .= "}";
- }
- return $currentstring;
- }
-#----------------------------------------------------------------------------- <p> tag
- sub start_p {
- my ($target,$token) = @_;
- my $currentstring = '';
- if ($target eq 'web') {
- $currentstring .= $token->[4];
- } elsif ($target eq 'tex') {
- $currentstring .= "{\\par ";
- }
- return $currentstring;
- }
- sub end_p {
- my ($target,$token) = @_;
- my $currentstring = '';
- if ($target eq 'web') {
- $currentstring .= $token->[2];
- } elsif ($target eq 'tex') {
- $currentstring .= " }";
- }
- return $currentstring;
- }
-#---------------------------------------------------------------------------- <br> tag
- sub start_br {
- my ($target,$token) = @_;
- my $currentstring = '';
- if ($target eq 'web') {
- $currentstring .= $token->[4];
- } elsif ($target eq 'tex') {
- $currentstring .= "\\\\";
- }
- return $currentstring;
- }
- sub end_br {
- my ($target,$token) = @_;
- my $currentstring = '';
- if ($target eq 'web') {
- $currentstring .= $token->[2];
- }
- return $currentstring;
- }
-#--------------------------------------------------------------------------- <big> tag
- sub start_big {
- my ($target,$token) = @_;
- my $currentstring = '';
- if ($target eq 'web') {
- $currentstring .= $token->[4];
- } elsif ($target eq 'tex') {
- $currentstring .= "{\\large ";
- }
- return $currentstring;
- }
- sub end_big {
- my ($target,$token) = @_;
- my $currentstring = '';
- if ($target eq 'web') {
- $currentstring .= $token->[2];
- } elsif ($target eq 'tex') {
- $currentstring .= " }";
- }
- return $currentstring;
- }
-#------------------------------------------------------------------------- <small> tag
- sub start_small {
- my ($target,$token) = @_;
- my $currentstring = '';
- if ($target eq 'web') {
- $currentstring .= $token->[4];
- } elsif ($target eq 'tex') {
- $currentstring .= "{\\footnotesize ";
- }
- return $currentstring;
- }
- sub end_small {
- my ($target,$token) = @_;
- my $currentstring = '';
- if ($target eq 'web') {
- $currentstring .= $token->[2];
- } elsif ($target eq 'tex') {
- $currentstring .= " }";
- }
- return $currentstring;
- }
-#---------------------------------------------------------------------- <basefont> tag
- sub start_basefont {
- my ($target,$token) = @_;
- my $currentstring = '';
- if ($target eq 'web') {
- $currentstring = $token->[4];
- }
- return $currentstring;
- }
-#-------------------------------------------------------------------------- <font> tag
- sub start_font {
- my ($target,$token) = @_;
- my $currentstring = '';
- if ($target eq 'web') {
- $currentstring = $token->[4];
- }
- return $currentstring;
- }
- sub end_font {
- my ($target,$token) = @_;
- my $currentstring = '';
- if ($target eq 'web') {
- $currentstring = $token->[2];
- }
- return $currentstring;
- }
-#------------------------------------------------------------------------ <strike> tag
- sub start_strike {
- my ($target,$token) = @_;
- my $currentstring = '';
- if ($target eq 'web') {
- $currentstring .= $token->[4];
- } elsif ($target eq 'tex') {
- $currentstring .= "{\\underline ";
- }
- return $currentstring;
- }
- sub end_strike {
- my ($target,$token) = @_;
- my $currentstring = '';
- if ($target eq 'web') {
- $currentstring .= $token->[2];
- } elsif ($target eq 'tex') {
- $currentstring .= " }";
- }
- return $currentstring;
- }
-#----------------------------------------------------------------------------- <s> tag
- sub start_s {
- my ($target,$token) = @_;
- my $currentstring = '';
- if ($target eq 'web') {
- $currentstring .= $token->[4];
- } elsif ($target eq 'tex') {
- $currentstring .= "{\\underline ";
- }
- return $currentstring;
- }
- sub end_s {
- my ($target,$token) = @_;
- my $currentstring = '';
- if ($target eq 'web') {
- $currentstring .= $token->[2];
- } elsif ($target eq 'tex') {
- $currentstring .= " }";
- }
- return $currentstring;
- }
-#--------------------------------------------------------------------------- <sub> tag
- sub start_sub {
- my ($target,$token) = @_;
- my $currentstring = '';
- if ($target eq 'web') {
- $currentstring .= $token->[4];
- } elsif ($target eq 'tex') {
- $currentstring .= "\$_{ ";
- }
- return $currentstring;
- }
- sub end_sub {
- my ($target,$token) = @_;
- my $currentstring = '';
- if ($target eq 'web') {
- $currentstring .= $token->[2];
- } elsif ($target eq 'tex') {
- $currentstring .= " }\$";
- }
- return $currentstring;
- }
-#--------------------------------------------------------------------------- <sup> tag
- sub start_sup {
- my ($target,$token) = @_;
- my $currentstring = '';
- if ($target eq 'web') {
- $currentstring .= $token->[4];
- } elsif ($target eq 'tex') {
- $currentstring .= "\$^{ ";
- }
- return $currentstring;
- }
- sub end_sup {
- my ($target,$token) = @_;
- my $currentstring = '';
- if ($target eq 'web') {
- $currentstring .= $token->[2];
- } elsif ($target eq 'tex') {
- $currentstring .= " }\$";
- }
- return $currentstring;
- }
-#---------------------------------------------------------------------------- <hr> tag
- sub start_hr {
- my ($target,$token) = @_;
- my $currentstring = '';
- if ($target eq 'web') {
- $currentstring .= $token->[4];
- } elsif ($target eq 'tex') {
- $currentstring .= "\\hline ";
- }
- return $currentstring;
- }
-#----------------------------------------------------------------------------- <a> tag
- sub start_a {
- my ($target,$token) = @_;
- my $currentstring = '';
- if ($target eq 'web') {
- $currentstring .= $token->[4];
- } elsif ($target eq 'tex') {
- }
- return $currentstring;
- }
- sub end_a {
- my ($target,$token,$stackref) = @_;
- my $currentstring = '';
- if ($target eq 'web') {
- $currentstring .= $token->[2];
- } elsif ($target eq 'tex') {
- my $tempor_var = $stackref->[$#$stackref];
- if (index($tempor_var,'name') != -1 ) {
- $tempor_var =~ s/name=([^,]*),/$1/g;
- $currentstring .= " \\label{$tempor_var}";
- } elsif (index($tempor_var,'href') != -1 ) {
- $tempor_var =~ s/href=([^,]*),/$1/g;
- $currentstring .= " \\ref{$tempor_var}";
- }
- }
- return $currentstring;
- }
-#---------------------------------------------------------------------------- <li> tag
- sub start_li {
- my ($target,$token,$stackref) = @_;
- my $currentstring = '';
- if ($target eq 'web') {
- $currentstring = $token->[4];
- } elsif ($target eq 'tex') {
- my $tempor_var = $stackref->[$#$stackref-1];
- if (index($tempor_var,'circle') != -1 ) {
- $currentstring .= " \\item[o] ";
- } elsif (index($tempor_var,'square') != -1 ) {
- $currentstring .= " \\item[$\Box$] ";
- } else {
- $currentstring .= " \\item ";
- }
- }
- return $currentstring;
- }
- sub end_li {
- my ($target,$token) = @_;
- my $currentstring = '';
- if ($target eq 'web') {
- $currentstring = $token->[2];
- }
- return $currentstring;
- }
-#----------------------------------------------------------------------------- <u> tag
- sub start_u {
- my ($target,$token) = @_;
- my $currentstring = '';
- if ($target eq 'web') {
- $currentstring .= $token->[4];
- } elsif ($target eq 'tex') {
- $currentstring .= "{\\underline ";
- }
- return $currentstring;
- }
- sub end_u {
- my ($target,$token) = @_;
- my $currentstring = '';
- if ($target eq 'web') {
- $currentstring .= $token->[2];
- } elsif ($target eq 'tex') {
- $currentstring .= " }";
- }
- return $currentstring;
- }
-#---------------------------------------------------------------------------- <ul> tag
- sub start_ul {
- my ($target,$token) = @_;
- my $currentstring = '';
- if ($target eq 'web') {
- $currentstring = $token->[4];
- } elsif ($target eq 'tex') {
- $currentstring = " \\begin{itemize} ";
- }
- return $currentstring;
- }
- sub end_ul {
- my ($target,$token) = @_;
- my $currentstring = '';
- if ($target eq 'web') {
- $currentstring = $token->[2];
- } elsif ($target eq 'tex') {
- $currentstring = " \\end{itemize}";
- }
- return $currentstring;
- }
-#-------------------------------------------------------------------------- <menu> tag
- sub start_menu {
- my ($target,$token) = @_;
- my $currentstring = '';
- if ($target eq 'web') {
- $currentstring = $token->[4];
- } elsif ($target eq 'tex') {
- $currentstring = " \\begin{itemize} ";
- }
- return $currentstring;
- }
- sub end_menu {
- my ($target,$token) = @_;
- my $currentstring = '';
- if ($target eq 'web') {
- $currentstring = $token->[2];
- } elsif ($target eq 'tex') {
- $currentstring = " \\end{itemize}";
- }
- return $currentstring;
- }
-#--------------------------------------------------------------------------- <dir> tag
- sub start_dir {
- my ($target,$token) = @_;
- my $currentstring = '';
- if ($target eq 'web') {
- $currentstring = $token->[4];
- } elsif ($target eq 'tex') {
- $currentstring = " \\begin{itemize} ";
- }
- return $currentstring;
- }
- sub end_dir {
- my ($target,$token) = @_;
- my $currentstring = '';
- if ($target eq 'web') {
- $currentstring = $token->[2];
- } elsif ($target eq 'tex') {
- $currentstring = " \\end{itemize}";
- }
- return $currentstring;
- }
-#---------------------------------------------------------------------------- <ol> tag
- sub start_ol {
- my ($target,$token) = @_;
- my $currentstring = '';
- if ($target eq 'web') {
- $currentstring = $token->[4];
- } elsif ($target eq 'tex') {
- $currentstring = " \\begin{enumerate} ";
- }
- return $currentstring;
- }
- sub end_ol {
- my ($target,$token) = @_;
- my $currentstring = '';
- if ($target eq 'web') {
- $currentstring = $token->[2];
- } elsif ($target eq 'tex') {
- $currentstring = " \\end{enumerate}";
- }
- return $currentstring;
- }
-#---------------------------------------------------------------------------- <dl> tag
- sub start_dl {
- my ($target,$token) = @_;
- my $currentstring = '';
- if ($target eq 'web') {
- $currentstring = $token->[4];
- } elsif ($target eq 'tex') {
- $currentstring = " \\begin{description} ";
- }
- return $currentstring;
- }
- sub end_dl {
- my ($target,$token) = @_;
- my $currentstring = '';
- if ($target eq 'web') {
- $currentstring = $token->[2];
- } elsif ($target eq 'tex') {
- $currentstring = " \\end{description}";
- }
- return $currentstring;
- }
-#---------------------------------------------------------------------------- <dt> tag
- sub start_dt {
- my ($target,$token) = @_;
- my $currentstring = '';
- if ($target eq 'web') {
- $currentstring = $token->[4];
- } elsif ($target eq 'tex') {
- $currentstring = "\\item[ ";
- }
- return $currentstring;
- }
- sub end_dt {
- my ($target,$token) = @_;
- my $currentstring = '';
- if ($target eq 'web') {
- $currentstring = $token->[2];
- } elsif ($target eq 'tex') {
- $currentstring = "]";
- }
- return $currentstring;
- }
-#---------------------------------------------------------------------------- <dd> tag
- sub start_dd {
- my ($target,$token) = @_;
- my $currentstring = '';
- if ($target eq 'web') {
- $currentstring = $token->[4];
- }
- return $currentstring;
- }
- sub end_dd {
- my ($target,$token) = @_;
- my $currentstring = '';
- if ($target eq 'web') {
- $currentstring = $token->[2];
- }
- return $currentstring;
- }
-#------------------------------------------------------------------------- <table> tag
- sub start_table {
- my ($target,$token) = @_;
- my $currentstring = '';
- if ($target eq 'web') {
- $currentstring = $token->[4];
- } elsif ($target eq 'tex') {
- $currentstring = " \\begin{tabular} ";
- }
- return $currentstring;
- }
- sub end_table {
- my ($target,$token) = @_;
- my $currentstring = '';
- if ($target eq 'web') {
- $currentstring = $token->[2];
- } elsif ($target eq 'tex') {
- $currentstring = " \\end{tabular}";
- }
- return $currentstring;
- }
+sub warning {
+ if ($ENV{'request.state'} eq 'construct') {
+ print "<b>W</b>ARNING<b>:</b>".$_[0]."<br />\n";
+ }
+}
+sub get_param {
+ my ($param,$parstack,$safeeval,$context) = @_;
+ if ( ! $context ) { $context = -1; }
+ my $args ='';
+ if ( $#$parstack > (-2-$context) ) { $args=$$parstack[$context]; }
+ return &Apache::run::run("{$args;".'return $'.$param.'}',$safeeval); #'
+}
+
+sub register_insert {
+ my @data = split /\n/, &Apache::lonnet::getfile('/home/httpd/lonTabs/insertlist.tab');
+ my $i;
+ my $tagnum=0;
+ my @order;
+ for ($i=0;$i < $#data; $i++) {
+ my $line = $data[$i];
+ if ( $line =~ /^\#/ || $line =~ /^\s*\n/) { next; }
+ if ( $line =~ /TABLE/ ) { last; }
+ my ($tag,$descrip,$function,$show) = split(/,/, $line);
+ $insertlist{"$tagnum.tag"} = $tag;
+ $insertlist{"$tagnum.description"} = $descrip;
+ $insertlist{"$tagnum.function"} = $function;
+ $insertlist{"$tagnum.show"}= $show;
+ $tagnum++;
+ }
+ $i++; #skipping TABLE line
+ $tagnum = 0;
+ for (;$i < $#data;$i++) {
+ my $line = $data[$i];
+ my ($mnemonic,@which) = split(/ +/,$line);
+ my $tag = $insertlist{"$tagnum.tag"};
+ for (my $j=0;$j <$#which;$j++) {
+ if ( $which[$j] eq 'Y' ) {
+ if ($insertlist{"$j.show"} ne 'no') {
+ push(@{ $insertlist{"$tag.which"} },$j);
+ }
+ }
+ }
+ $tagnum++;
+ }
+}
1;
__END__
+
+