--- loncom/xml/lonxml.pm 2000/10/02 22:19:19 1.22
+++ loncom/xml/lonxml.pm 2003/06/20 14:45:48 1.265
@@ -1,181 +1,683 @@
# The LearningOnline Network with CAPA
# XML Parser Module
#
+# $Id: lonxml.pm,v 1.265 2003/06/20 14:45:48 bowersj2 Exp $
+#
+# Copyright Michigan State University Board of Trustees
+#
+# This file is part of the LearningOnline Network with CAPA (LON-CAPA).
+#
+# LON-CAPA is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# LON-CAPA is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with LON-CAPA; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+#
+# /home/httpd/html/adm/gpl.txt
+#
+# http://www.lon-capa.org/
+#
+# Copyright for TtHfunc and TtMfunc by Ian Hutchinson.
+# TtHfunc and TtMfunc (the "Code") may be compiled and linked into
+# binary executable programs or libraries distributed by the
+# Michigan State University (the "Licensee"), but any binaries so
+# distributed are hereby licensed only for use in the context
+# of a program or computational system for which the Licensee is the
+# primary author or distributor, and which performs substantial
+# additional tasks beyond the translation of (La)TeX into HTML.
+# The C source of the Code may not be distributed by the Licensee
+# to any other parties under any circumstances.
+#
# last modified 06/26/00 by Alexander Sakharuk
+# 11/6 Gerd Kortemeyer
+# 6/1/1 Gerd Kortemeyer
+# 2/21,3/13 Guy
+# 3/29,5/4 Gerd Kortemeyer
+# 5/26 Gerd Kortemeyer
+# 5/27 H. K. Ng
+# 6/2,6/3,6/8,6/9 Gerd Kortemeyer
+# 6/12,6/13 H. K. Ng
+# 6/16 Gerd Kortemeyer
+# 7/27 H. K. Ng
+# 8/7,8/9,8/10,8/11,8/15,8/16,8/17,8/18,8/20,8/23,8/24 Gerd Kortemeyer
+# Guy Albertelli
+# 9/26 Gerd Kortemeyer
+# Dec Guy Albertelli
+# YEAR=2002
+# 1/1 Gerd Kortemeyer
+# 1/2 Matthew Hall
+# 1/3 Gerd Kortemeyer
+#
package Apache::lonxml;
-
+use vars
+qw(@pwd @outputstack $redirection $import @extlinks $metamode $evaluate %insertlist @namespace $prevent_entity_encode $errorcount $warningcount);
use strict;
-use HTML::TokeParser;
-use Safe;
-use Opcode;
+use HTML::LCParser();
+use HTML::TreeBuilder();
+use HTML::Entities();
+use Safe();
+use Safe::Hole();
+use Math::Cephes();
+use Math::Random();
+use Opcode();
sub register {
- my $space;
- my @taglist;
- my $temptag;
- ($space,@taglist) = @_;
- foreach $temptag (@taglist) {
- $Apache::lonxml::alltags{$temptag}=$space;
+ my ($space,@taglist) = @_;
+ foreach my $temptag (@taglist) {
+ push(@{ $Apache::lonxml::alltags{$temptag} },$space);
+ }
+}
+
+sub deregister {
+ my ($space,@taglist) = @_;
+ foreach my $temptag (@taglist) {
+ my $tempspace = $Apache::lonxml::alltags{$temptag}[-1];
+ if ($tempspace eq $space) {
+ pop(@{ $Apache::lonxml::alltags{$temptag} });
+ }
}
+ #&printalltags();
}
-
-use Apache::style;
-use Apache::lontexconvert;
-use Apache::run;
-use Apache::londefdef;
-use Apache::scripttag;
+
+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();
+use Apache::loncommon();
+use Apache::lonfeedback();
+use Apache::lonmsg();
+use Apache::loncacc();
+
#================================================== Main subroutine: xmlparse
+#debugging control, to turn on debugging modify the correct handler
+$Apache::lonxml::debug=0;
+
+# keeps count of the number of warnings and errors generated in a parse
+$warningcount=0;
+$errorcount=0;
+
+#path to the directory containing the file currently being processed
+@pwd=();
+
+#these two are used for capturing a subset of the output for later processing,
+#don't touch them directly use &startredirection and &endredirection
+@outputstack = ();
+$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
+$evaluate = 1;
+
+# data structure for eidt mode, determines what tags can go into what other tags
+%insertlist=();
+
+# stores the list of active tag namespaces
+@namespace=();
+
+# if 0 all high ASCII characters will be encoded into HTML Entities
+$prevent_entity_encode=0;
+
+# has the dynamic menu been updated to know about this resource
+$Apache::lonxml::registered=0;
+
+# a pointer the the Apache request object
+$Apache::lonxml::request='';
+
+# a problem number counter, and check on ether it is used
+$Apache::lonxml::counter=1;
+$Apache::lonxml::counter_changed=0;
+
+#internal check on whether to look at style defs
+$Apache::lonxml::usestyle=1;
+
+#locations used to store the parameter string for style substitutions
+$Apache::lonxml::style_values='';
+$Apache::lonxml::style_end_values='';
+
+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 $output;
+}
+
+sub xmlend {
+ my ($discussiononly,$symb)=@_;
+ my $discussion='';
+ if ($ENV{'request.course.id'}) {
+ my $crs='/'.$ENV{'request.course.id'};
+ if ($ENV{'request.course.sec'}) {
+ $crs.='_'.$ENV{'request.course.sec'};
+ }
+ $crs=~s/\_/\//g;
+ my $seeid=&Apache::lonnet::allowed('rin',$crs);
+ unless ($symb) {
+ $symb=&Apache::lonnet::symbread();
+ }
+ if ($symb) {
+ my %contrib=&Apache::lonnet::restore($symb,$ENV{'request.course.id'},
+ $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
+ $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
+ if ($contrib{'version'}) {
+ unless ($discussiononly) {
+ $discussion.=
+ '<address><hr />';
+ }
+ my $idx;
+ for ($idx=1;$idx<=$contrib{'version'};$idx++) {
+ my $hidden=($contrib{'hidden'}=~/\.$idx\./);
+ my $deleted=($contrib{'deleted'}=~/\.$idx\./);
+ unless ((($hidden) && (!$seeid)) || ($deleted)) {
+ my $message=$contrib{$idx.':message'};
+ $message=~s/\n/\<br \/\>/g;
+ $message=&Apache::lontexconvert::msgtexconverted($message);
+ if ($contrib{$idx.':attachmenturl'}) {
+ my ($fname,$ft)
+ =($contrib{$idx.':attachmenturl'}=~/\/(\w+)\.(\w+)$/);
+ $message.='<p>Attachment: <a href="'.
+ &Apache::lonnet::tokenwrapper($contrib{$idx.':attachmenturl'}).
+ '"><tt>'.$fname.'.'.$ft.'</tt></a>';
+ }
+ if ($message) {
+ if ($hidden) {
+ $message='<font color="#888888">'.$message.'</font>';
+ }
+ my $screenname=&Apache::loncommon::screenname(
+ $contrib{$idx.':sendername'},
+ $contrib{$idx.':senderdomain'});
+ my $plainname=&Apache::loncommon::nickname(
+ $contrib{$idx.':sendername'},
+ $contrib{$idx.':senderdomain'});
+
+ my $sender='Anonymous';
+ if ((!$contrib{$idx.':anonymous'}) || ($seeid)) {
+ $sender=&Apache::loncommon::aboutmewrapper(
+ $plainname,
+ $contrib{$idx.':sendername'},
+ $contrib{$idx.':senderdomain'}).' ('.
+ $contrib{$idx.':sendername'}.' at '.
+ $contrib{$idx.':senderdomain'}.')';
+ if ($contrib{$idx.':anonymous'}) {
+ $sender.=' [anonymous] '.
+ $screenname;
+ }
+ if ($seeid) {
+ if ($hidden) {
+ $sender.=' <a href="/adm/feedback?unhide='.
+ $symb.':::'.$idx.'">Make Visible</a>';
+ } else {
+ $sender.=' <a href="/adm/feedback?hide='.
+ $symb.':::'.$idx.'">Hide</a>';
+ }
+ $sender.=' <a href="/adm/feedback?deldisc='.
+ $symb.':::'.$idx.'">Delete</a>';
+ }
+ } else {
+ if ($screenname) {
+ $sender='<i>'.$screenname.'</i>';
+ }
+ }
+ $discussion.='<p><b>'.$sender.'</b> ('.
+ localtime($contrib{$idx.':timestamp'}).
+ '):<blockquote>'.$message.
+ '</blockquote></p>';
+ }
+ }
+ }
+ unless ($discussiononly) {
+ $discussion.='</address>';
+ }
+ }
+ if ($discussiononly) {
+ $discussion.=(<<ENDDISCUSS);
+<form action="/adm/feedback" method="post" name="mailform" enctype="multipart/form-data">
+<input type="submit" name="discuss" value="Post Discussion" />
+<input type="submit" name="anondiscuss" value="Post Anonymous Discussion" />
+<input type="hidden" name="symb" value="$symb" />
+<input type="hidden" name="sendit" value="true" />
+<br />
+<font size="1">Note: in anonymous discussion, your name is visible only to
+course faculty</font><br />
+<textarea name=comment cols=60 rows=10 wrap=hard></textarea>
+<p>
+Attachment (128 KB max size): <input type="file" name="attachment" />
+</p>
+</form>
+ENDDISCUSS
+ $discussion.=&Apache::lonfeedback::generate_preview_button();
+ }
+ }
+ }
+ return $discussion.($discussiononly?'':'</html>');
+}
+
+sub tokeninputfield {
+ my $defhost=$Apache::lonnet::perlvar{'lonHostID'};
+ $defhost=~tr/a-z/A-Z/;
+ return (<<ENDINPUTFIELD)
+<script type="text/javascript">
+ function updatetoken() {
+ var comp=new Array;
+ var barcode=unescape(document.tokeninput.barcode.value);
+ comp=barcode.split('*');
+ if (typeof(comp[0])!="undefined") {
+ document.tokeninput.codeone.value=comp[0];
+ }
+ if (typeof(comp[1])!="undefined") {
+ document.tokeninput.codetwo.value=comp[1];
+ }
+ if (typeof(comp[2])!="undefined") {
+ comp[2]=comp[2].toUpperCase();
+ document.tokeninput.codethree.value=comp[2];
+ }
+ document.tokeninput.barcode.value='';
+ }
+</script>
+<form method="post" name="tokeninput">
+<table border="2" bgcolor="#FFFFBB">
+<tr><th>DocID Checkin</th></tr>
+<tr><td>
+<table>
+<tr>
+<td>Scan in Barcode</td>
+<td><input type="text" size="22" name="barcode"
+onChange="updatetoken()"/></td>
+</tr>
+<tr><td><i>or</i> Type in DocID</td>
+<td>
+<input type="text" size="5" name="codeone" />
+<b><font size="+2">*</font></b>
+<input type="text" size="5" name="codetwo" />
+<b><font size="+2">*</font></b>
+<input type="text" size="10" name="codethree" value="$defhost"
+onChange="this.value=this.value.toUpperCase()" />
+</td></tr>
+</table>
+</td></tr>
+<tr><td><input type="submit" value="Check in DocID" /></td></tr>
+</table>
+</form>
+ENDINPUTFIELD
+}
+
+sub maketoken {
+ my ($symb,$tuname,$tudom,$tcrsid)=@_;
+ unless ($symb) {
+ $symb=&Apache::lonnet::symbread();
+ }
+ unless ($tuname) {
+ $tuname=$ENV{'user.name'};
+ $tudom=$ENV{'user.domain'};
+ $tcrsid=$ENV{'request.course.id'};
+ }
+
+ return &Apache::lonnet::checkout($symb,$tuname,$tudom,$tcrsid);
+}
+
+sub printtokenheader {
+ my ($target,$token,$tsymb,$tcrsid,$tudom,$tuname)=@_;
+ unless ($token) { return ''; }
+
+ my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
+ unless ($tsymb) {
+ $tsymb=$symb;
+ }
+ unless ($tuname) {
+ $tuname=$name;
+ $tudom=$domain;
+ $tcrsid=$courseid;
+ }
+
+ my %reply=&Apache::lonnet::get('environment',
+ ['firstname','middlename','lastname','generation'],
+ $tudom,$tuname);
+ my $plainname=$reply{'firstname'}.' '.
+ $reply{'middlename'}.' '.
+ $reply{'lastname'}.' '.
+ $reply{'generation'};
+
+ if ($target eq 'web') {
+ my %idhash=&Apache::lonnet::idrget($tudom,($tuname));
+ return
+ '<img align="right" src="/cgi-bin/barcode.png?encode='.$token.'" />'.
+ 'Checked out for '.$plainname.
+ '<br />User: '.$tuname.' at '.$tudom.
+ '<br />ID: '.$idhash{$tuname}.
+ '<br />CourseID: '.$tcrsid.
+ '<br />Course: '.$ENV{'course.'.$tcrsid.'.description'}.
+ '<br />DocID: '.$token.
+ '<br />Time: '.localtime().'<hr />';
+ } else {
+ return $token;
+ }
+}
+
+sub fontsettings() {
+ my $headerstring='';
+ if (($ENV{'browser.os'} eq 'mac') && (!$ENV{'browser.mathml'})) {
+ $headerstring.=
+ '<meta Content-Type="text/html; charset=x-mac-roman">';
+ } elsif (!$ENV{'browser.mathml'} && $ENV{'browser.unicode'}) {
+ $headerstring.=
+ '<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />';
+ }
+ return $headerstring;
+}
+
+sub printalltags {
+ my $temp;
+ foreach $temp (sort keys %Apache::lonxml::alltags) {
+ &Apache::lonxml::debug("$temp -- ".
+ join(',',@{ $Apache::lonxml::alltags{$temp} }));
+ }
+}
sub xmlparse {
+ my ($request,$target,$content_file_string,$safeinit,%style_for_target) = @_;
- my ($target,$content_file_string,$safeinit,%style_for_target) = @_;
+ &setup_globals($request,$target);
+ &Apache::inputtags::initialize_inputtags();
+ &Apache::outputtags::initialize_outputtags();
+ &Apache::edit::initialize_edit();
+
+#
+# do we have a course style file?
+#
+
+ if ($ENV{'request.course.id'} && $ENV{'request.state'} ne 'construct') {
+ my $bodytext=
+ $ENV{'course.'.$ENV{'request.course.id'}.'.default_xml_style'};
+ if ($bodytext) {
+ my $location=&Apache::lonnet::filelocation('',$bodytext);
+ my $styletext=&Apache::lonnet::getfile($location);
+ if ($styletext ne '-1') {
+ %style_for_target = (%style_for_target,
+ &Apache::style::styleparser($target,$styletext));
+ }
+ }
+ }
+#&printalltags();
my @pars = ();
- push (@pars,HTML::TokeParser->new(\$content_file_string));
- my $currentstring = '';
- my $finaloutput = '';
- my $newarg = '';
- my $result;
+ my $pwd=$ENV{'request.filename'};
+ $pwd =~ s:/[^/]*$::;
+ &newparser(\@pars,\$content_file_string,$pwd);
+
my $safeeval = new Safe;
- $safeeval->permit("entereval");
- $safeeval->permit(":base_math");
- $safeeval->deny(":base_io");
-#need to inspect this class of ops
-# $safeeval->deny(":base_orig");
- $safeinit .= ';$external::target='.$target.';';
- &Apache::run::run($safeinit,$safeeval);
+ 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 @stack = ();
my @parstack = ();
&initdepth;
- my $token;
- while ( $#pars > -1 ) {
- while ($token = $pars[$#pars]->get_token) {
- if ($token->[0] eq 'T') {
- $result=$token->[1];
-# $finaloutput .= &Apache::run::evaluate($token->[1],$safeeval,'');
- } elsif ($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]}) {
- $finaloutput .= &recurse($style_for_target{$token->[1]},
- $target,$safeeval,\%style_for_target,
- @parstack);
- } else {
- $result = &callsub("start_$token->[1]", $target, $token,\@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]
- && ($#stack > -1)) {pop @stack;pop @parstack;&decreasedepth($token);}
-
- if (exists $style_for_target{'/'."$token->[1]"}) {
- $finaloutput .= &recurse($style_for_target{'/'."$token->[1]"},
- $target,$safeeval,\%style_for_target,
- @parstack);
- } else {
- $result = &callsub("end_$token->[1]", $target, $token, \@parstack,
- \@pars,$safeeval, \%style_for_target);
- }
- }
- if ($result ne "" ) {
- if ( $#parstack > -1 ) {
- $finaloutput .= &Apache::run::evaluate($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;
+
+ my $finaloutput = &inner_xmlparse($target,\@stack,\@parstack,\@pars,
+ $safeeval,\%style_for_target);
+
+ if ($ENV{'request.uri'}) {
+ &writeallows($ENV{'request.uri'});
}
+ if ($Apache::lonxml::counter_changed) { &store_counter() }
return $finaloutput;
}
-sub recurse {
-
- my @innerstack = ();
- my @innerparstack = ();
- my ($newarg,$target,$safeeval,$style_for_target,@parstack) = @_;
- my @pat = ();
- push (@pat,HTML::TokeParser->new(\$newarg));
- my $tokenpat;
- my $partstring = '';
- my $output='';
- my $decls='';
- while ( $#pat > -1 ) {
- while ($tokenpat = $pat[$#pat]->get_token) {
- if ($tokenpat->[0] eq 'T') {
- $partstring = $tokenpat->[1];
- } elsif ($tokenpat->[0] eq 'S') {
- push (@innerstack,$tokenpat->[1]);
- push (@innerparstack,&parstring($tokenpat));
- &increasedepth($tokenpat);
- $partstring = &callsub("start_$tokenpat->[1]",
- $target, $tokenpat, \@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]
- && ($#innerstack > -1)) {pop @innerstack;pop @innerparstack;
- &decreasedepth($tokenpat);}
- $partstring = &callsub("end_$tokenpat->[1]",
- $target, $tokenpat, \@innerparstack,
- \@pat, $safeeval, $style_for_target);
- }
- #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];
- }
+sub htmlclean {
+ my ($raw,$full)=@_;
+
+ my $tree = HTML::TreeBuilder->new;
+ $tree->ignore_unknown(0);
+
+ $tree->parse($raw);
+
+ my $output= $tree->as_HTML(undef,' ');
+
+ $output=~s/\<(br|hr|img|meta|allow)(.*?)\>/\<$1$2 \/\>/gis;
+ $output=~s/\<\/(br|hr|img|meta|allow)\>//gis;
+ unless ($full) {
+ $output=~s/\<[\/]*(body|head|html)\>//gis;
+ }
+
+ $tree = $tree->delete;
+
+ return $output;
+}
+
+sub latex_special_symbols {
+ my ($current_token,$stack,$parstack,$where)=@_;
+ if ($where eq 'header') {
+ $current_token =~ s/(\\|_|\^)/ /g;
+ $current_token =~ s/(\$|%|\#|&|\{|\})/\\$1/g;
+ } else {
+ $current_token=~s/\\ /\\char92 /g;
+ $current_token=~s/\^/\\char94 /g;
+ $current_token=~s/\~/\\char126 /g;
+ $current_token=~s/(&[^A-Za-z\#])/\\$1/g;
+ $current_token=~s/([^&])\#/$1\\#/g;
+ $current_token=~s/(\$|_|{|})/\\$1/g;
+ $current_token=~s/\\char92 /\\texttt{\\char92}/g;
+ $current_token=~s/(>|<)/\$$1\$/g; #more or less
+ if ($current_token=~m/\d%/) {$current_token =~ s/(\d)%/$1\\%/g;} #percent after digit
+ if ($current_token=~m/\s%/) {$current_token =~ s/(\s)%/$1\\%/g;} #persent after space
+ }
+ return $current_token;
+}
+
+sub inner_xmlparse {
+ my ($target,$stack,$parstack,$pars,$safeeval,$style_for_target)=@_;
+ my $finaloutput = '';
+ my $result;
+ my $token;
+ my $dontpop=0;
+ while ( $#$pars > -1 ) {
+ while ($token = $$pars['-1']->get_token) {
+ if (($token->[0] eq 'T') || ($token->[0] eq 'C') ) {
+ if ($metamode<1) {
+ my $text=$token->[1];
+ if ($token->[0] eq 'C' && $target eq 'tex') {
+ $text = '';
+# $text = '%'.$text."\n";
+ }
+ $result.=$text;
+ }
+ } elsif (($token->[0] eq 'D')) {
+ if ($metamode<1 && $target eq 'web') {
+ my $text=$token->[1];
+ $result.=$text;
+ }
+ } elsif ($token->[0] eq 'PI') {
+ if ($metamode<1 && $target eq 'web') {
+ $result=$token->[2];
+ }
+ } elsif ($token->[0] eq 'S') {
+ # add tag to stack
+ push (@$stack,$token->[1]);
+ # add parameters list to another stack
+ push (@$parstack,&parstring($token));
+ &increasedepth($token);
+ if ($Apache::lonxml::usestyle &&
+ exists($$style_for_target{$token->[1]})) {
+ $Apache::lonxml::usestyle=0;
+ my $string=$$style_for_target{$token->[1]}.
+ '<LONCAPA_INTERNAL_TURN_STYLE_ON />';
+ &Apache::lonxml::newparser($pars,\$string);
+ $Apache::lonxml::style_values=$$parstack[-1];
+ $Apache::lonxml::style_end_values=$$parstack[-1];
} else {
- if ( $#innerparstack > -1 ) {
- $decls=$innerparstack[$#innerparstack];
- } else {
- $decls='';
+ $result = &callsub("start_$token->[1]", $target, $token, $stack,
+ $parstack, $pars, $safeeval, $style_for_target);
+ }
+ } elsif ($token->[0] eq 'E') {
+ if ($Apache::lonxml::usestyle &&
+ exists($$style_for_target{'/'."$token->[1]"})) {
+ $Apache::lonxml::usestyle=0;
+ my $string=$$style_for_target{'/'.$token->[1]}.
+ '<LONCAPA_INTERNAL_TURN_STYLE_ON end="'.$token->[1].'" />';
+ &Apache::lonxml::newparser($pars,\$string);
+ $Apache::lonxml::style_values=$Apache::lonxml::style_end_values;
+ $Apache::lonxml::style_end_values='';
+ $dontpop=1;
+ } else {
+ #clear out any tags that didn't end
+ while ($token->[1] ne $$stack['-1'] && ($#$stack > -1)) {
+ my $lasttag=$$stack[-1];
+ if ($token->[1] =~ /^$lasttag$/i) {
+ &Apache::lonxml::warning('Using tag </'.$token->[1].'> on line '.$token->[3].' as end tag to <'.$$stack[-1].'>');
+ last;
+ } else {
+ &Apache::lonxml::warning('Found tag </'.$token->[1].'> on line '.$token->[3].' when looking for </'.$$stack[-1].'> in file');
+ &end_tag($stack,$parstack,$token);
+ }
+ }
+ $result = &callsub("end_$token->[1]", $target, $token, $stack,
+ $parstack, $pars,$safeeval, $style_for_target);
+ }
+ } else {
+ &Apache::lonxml::error("Unknown token event :$token->[0]:$token->[1]:");
+ }
+ #evaluate variable refs in result
+ if ($result ne "") {
+ my $extras;
+ if (!$Apache::lonxml::usestyle) {
+ $extras=$Apache::lonxml::style_values;
}
+ if ( $#$parstack > -1 ) {
+ $result=&Apache::run::evaluate($result,$safeeval,$extras.$$parstack[-1]);
+ } else {
+ $result= &Apache::run::evaluate($result,$safeeval,$extras);
}
- $output .= &Apache::run::evaluate($partstring,$safeeval,$decls);
- $partstring = '';
}
- if ($tokenpat->[0] eq 'E') { pop @innerstack;pop @innerparstack;
- &decreasedepth($tokenpat);}
+ if (($token->[0] eq 'T') || ($token->[0] eq 'C') || ($token->[0] eq 'D') ) {
+ #Style file definitions should be correct
+ if ($target eq 'tex' && ($Apache::lonxml::usestyle)) {
+ $result=&latex_special_symbols($result,$stack,$parstack);
+ }
+ }
+
+ # Encode any high ASCII characters
+ if (!$Apache::lonxml::prevent_entity_encode) {
+ $result=&HTML::Entities::encode($result,"\200-\377");
+ }
+ if ($Apache::lonxml::redirection) {
+ $Apache::lonxml::outputstack['-1'] .= $result;
+ } else {
+ $finaloutput.=$result;
+ }
+ $result = '';
+
+ if ($token->[0] eq 'E' && !$dontpop) {
+ &end_tag($stack,$parstack,$token);
+ }
+ $dontpop=0;
+ }
+ if ($#$pars > -1) {
+ pop @$pars;
+ pop @Apache::lonxml::pwd;
}
- pop @pat;
}
- return $output;
+
+ # if ($target eq 'meta') {
+ # $finaloutput.=&endredirection;
+ # }
+
+
+ if (($ENV{'QUERY_STRING'}) && ($target eq 'web')) {
+ $finaloutput=&afterburn($finaloutput);
+ }
+ return $finaloutput;
}
sub callsub {
- my ($sub,$target,$token,$parstack,$parser,$safeeval,$style)=@_;
+ my ($sub,$target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
my $currentstring='';
+ my $nodefault;
{
+ my $sub1;
no strict 'refs';
- if (my $space=$Apache::lonxml::alltags{$token->[1]}) {
- &Apache::lonxml::debug("Calling sub $sub in $space<br>\n");
- $sub="$space\:\:$sub";
- $Apache::lonxml::curdepth=join('_',@Apache::lonxml::depthcounter);
- $currentstring = &$sub($target,$token,$parstack,$parser,
- $safeeval,$style);
- } else {
- &Apache::lonxml::debug("NOT Calling sub $sub in $space<br>\n");
- if (defined($token->[4])) {
- $currentstring = $token->[4];
+ my $tag=$token->[1];
+# get utterly rid of extended html tags
+ if ($tag=~/^x\-/i) { return ''; }
+ my $space=$Apache::lonxml::alltags{$tag}[-1];
+ if (!$space) {
+ $tag=~tr/A-Z/a-z/;
+ $sub=~tr/A-Z/a-z/;
+ $space=$Apache::lonxml::alltags{$tag}[-1]
+ }
+
+ my $deleted=0;
+ $Apache::lonxml::curdepth=join('_',@Apache::lonxml::depthcounter);
+ if (($token->[0] eq 'S') && ($target eq 'modified')) {
+ $deleted=&Apache::edit::handle_delete($space,$target,$token,$tagstack,
+ $parstack,$parser,$safeeval,
+ $style);
+ }
+ if (!$deleted) {
+ if ($space) {
+ #&Apache::lonxml::debug("Calling sub $sub in $space $metamode");
+ $sub1="$space\:\:$sub";
+ ($currentstring,$nodefault) = &$sub1($target,$token,$tagstack,
+ $parstack,$parser,$safeeval,
+ $style);
} else {
- $currentstring = $token->[2];
+ #&Apache::lonxml::debug("NOT Calling sub $sub in $space $metamode");
+ if ($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];
+ $currentstring.=&Apache::edit::handle_insert();
+ } elsif ($token->[0] eq 'E') {
+ $currentstring = $token->[2];
+ $currentstring.=&Apache::edit::handle_insertafter($token->[1]);
+ } else {
+ $currentstring = $token->[2];
+ }
+ }
}
}
use strict 'refs';
@@ -183,6 +685,181 @@ sub callsub {
return $currentstring;
}
+sub setup_globals {
+ my ($request,$target)=@_;
+ $Apache::lonxml::request=$request;
+ $Apache::lonxml::registered = 0;
+ $errorcount=0;
+ $warningcount=0;
+ $Apache::lonxml::default_homework_loaded=0;
+ $Apache::lonxml::usestyle=1;
+ &init_counter();
+ @Apache::lonxml::pwd=();
+ @Apache::lonxml::extlinks=();
+ if ($target eq 'meta') {
+ $Apache::lonxml::redirection = 0;
+ $Apache::lonxml::metamode = 1;
+ $Apache::lonxml::evaluate = 1;
+ $Apache::lonxml::import = 0;
+ } elsif ($target eq 'answer') {
+ $Apache::lonxml::redirection = 0;
+ $Apache::lonxml::metamode = 1;
+ $Apache::lonxml::evaluate = 1;
+ $Apache::lonxml::import = 1;
+ } elsif ($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;
+ $Apache::lonxml::import = 0;
+ } elsif ($target eq 'edit') {
+ $Apache::lonxml::redirection = 0;
+ $Apache::lonxml::metamode = 0;
+ $Apache::lonxml::evaluate = 0;
+ $Apache::lonxml::import = 0;
+ } elsif ($target eq 'analyze') {
+ $Apache::lonxml::redirection = 0;
+ $Apache::lonxml::metamode = 0;
+ $Apache::lonxml::evaluate = 1;
+ $Apache::lonxml::import = 1;
+ } else {
+ $Apache::lonxml::redirection = 0;
+ $Apache::lonxml::metamode = 0;
+ $Apache::lonxml::evaluate = 1;
+ $Apache::lonxml::import = 1;
+ }
+}
+
+sub init_safespace {
+ my ($target,$safeeval,$safehole,$safeinit) = @_;
+ $safeeval->permit("entereval");
+ $safeeval->permit(":base_math");
+ $safeeval->permit("sort");
+ $safeeval->deny(":base_io");
+ $safehole->wrap(\&Apache::scripttag::xmlparse,$safeeval,'&xmlparse');
+ $safehole->wrap(\&Apache::outputtags::multipart,$safeeval,'&multipart');
+ $safehole->wrap(\&Apache::lonnet::EXT,$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');
+
+ $safehole->wrap(\&Math::Cephes::bdtr ,$safeeval,'&bdtr' );
+ $safehole->wrap(\&Math::Cephes::bdtrc ,$safeeval,'&bdtrc' );
+ $safehole->wrap(\&Math::Cephes::bdtri ,$safeeval,'&bdtri' );
+ $safehole->wrap(\&Math::Cephes::btdtr ,$safeeval,'&btdtr' );
+ $safehole->wrap(\&Math::Cephes::chdtr ,$safeeval,'&chdtr' );
+ $safehole->wrap(\&Math::Cephes::chdtrc,$safeeval,'&chdtrc');
+ $safehole->wrap(\&Math::Cephes::chdtri,$safeeval,'&chdtri');
+ $safehole->wrap(\&Math::Cephes::fdtr ,$safeeval,'&fdtr' );
+ $safehole->wrap(\&Math::Cephes::fdtrc ,$safeeval,'&fdtrc' );
+ $safehole->wrap(\&Math::Cephes::fdtri ,$safeeval,'&fdtri' );
+ $safehole->wrap(\&Math::Cephes::gdtr ,$safeeval,'&gdtr' );
+ $safehole->wrap(\&Math::Cephes::gdtrc ,$safeeval,'&gdtrc' );
+ $safehole->wrap(\&Math::Cephes::nbdtr ,$safeeval,'&nbdtr' );
+ $safehole->wrap(\&Math::Cephes::nbdtrc,$safeeval,'&nbdtrc');
+ $safehole->wrap(\&Math::Cephes::nbdtri,$safeeval,'&nbdtri');
+ $safehole->wrap(\&Math::Cephes::ndtr ,$safeeval,'&ndtr' );
+ $safehole->wrap(\&Math::Cephes::ndtri ,$safeeval,'&ndtri' );
+ $safehole->wrap(\&Math::Cephes::pdtr ,$safeeval,'&pdtr' );
+ $safehole->wrap(\&Math::Cephes::pdtrc ,$safeeval,'&pdtrc' );
+ $safehole->wrap(\&Math::Cephes::pdtri ,$safeeval,'&pdtri' );
+ $safehole->wrap(\&Math::Cephes::stdtr ,$safeeval,'&stdtr' );
+ $safehole->wrap(\&Math::Cephes::stdtri,$safeeval,'&stdtri');
+
+# $safehole->wrap(\&Math::Cephes::new_fract,$safeeval,'&new_fract');
+# $safehole->wrap(\&Math::Cephes::radd,$safeeval,'&radd');
+# $safehole->wrap(\&Math::Cephes::rsub,$safeeval,'&rsub');
+# $safehole->wrap(\&Math::Cephes::rmul,$safeeval,'&rmul');
+# $safehole->wrap(\&Math::Cephes::rdiv,$safeeval,'&rdiv');
+# $safehole->wrap(\&Math::Cephes::euclid,$safeeval,'&euclid');
+
+ $safehole->wrap(\&Math::Random::random_beta,$safeeval,'&math_random_beta');
+ $safehole->wrap(\&Math::Random::random_chi_square,$safeeval,'&math_random_chi_square');
+ $safehole->wrap(\&Math::Random::random_exponential,$safeeval,'&math_random_exponential');
+ $safehole->wrap(\&Math::Random::random_f,$safeeval,'&math_random_f');
+ $safehole->wrap(\&Math::Random::random_gamma,$safeeval,'&math_random_gamma');
+ $safehole->wrap(\&Math::Random::random_multivariate_normal,$safeeval,'&math_random_multivariate_normal');
+ $safehole->wrap(\&Math::Random::random_multinomial,$safeeval,'&math_random_multinomial');
+ $safehole->wrap(\&Math::Random::random_noncentral_chi_square,$safeeval,'&math_random_noncentral_chi_square');
+ $safehole->wrap(\&Math::Random::random_noncentral_f,$safeeval,'&math_random_noncentral_f');
+ $safehole->wrap(\&Math::Random::random_normal,$safeeval,'&math_random_normal');
+ $safehole->wrap(\&Math::Random::random_permutation,$safeeval,'&math_random_permutation');
+ $safehole->wrap(\&Math::Random::random_permuted_index,$safeeval,'&math_random_permuted_index');
+ $safehole->wrap(\&Math::Random::random_uniform,$safeeval,'&math_random_uniform');
+ $safehole->wrap(\&Math::Random::random_poisson,$safeeval,'&math_random_poisson');
+ $safehole->wrap(\&Math::Random::random_uniform_integer,$safeeval,'&math_random_uniform_integer');
+ $safehole->wrap(\&Math::Random::random_negative_binomial,$safeeval,'&math_random_negative_binomial');
+ $safehole->wrap(\&Math::Random::random_binomial,$safeeval,'&math_random_binomial');
+ $safehole->wrap(\&Math::Random::random_seed_from_phrase,$safeeval,'&random_seed_from_phrase');
+ $safehole->wrap(\&Math::Random::random_set_seed_from_phrase,$safeeval,'&random_set_seed_from_phrase');
+ $safehole->wrap(\&Math::Random::random_get_seed,$safeeval,'&random_get_seed');
+ $safehole->wrap(\&Math::Random::random_set_seed,$safeeval,'&random_set_seed');
+
+#need to inspect this class of ops
+# $safeeval->deny(":base_orig");
+ $safeinit .= ';$external::target="'.$target.'";';
+ my $rndseed;
+ my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
+ $rndseed=&Apache::lonnet::rndseed($symb,$courseid,$domain,$name);
+ $safeinit .= ';$external::randomseed='.$rndseed.';';
+ &Apache::lonxml::debug("Setting rndseed to $rndseed");
+ &Apache::run::run($safeinit,$safeeval);
+}
+
+sub default_homework_load {
+ my ($safeeval)=@_;
+ &Apache::lonxml::debug('Loading default_homework');
+ my $default=&Apache::lonnet::getfile('/home/httpd/html/res/adm/includes/default_homework.lcpm');
+ if ($default eq -1) {
+ &Apache::lonxml::error("<b>Unable to find <i>default_homework.lcpm</i></b>");
+ } else {
+ &Apache::run::run($default,$safeeval);
+ $Apache::lonxml::default_homework_loaded=1;
+ }
+}
+
+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 '';
+ }
+ $Apache::lonxml::redirection--;
+ pop @Apache::lonxml::outputstack;
+}
+
+sub end_tag {
+ my ($tagstack,$parstack,$token)=@_;
+ pop(@$tagstack);
+ pop(@$parstack);
+ &decreasedepth($token);
+}
+
sub initdepth {
@Apache::lonxml::depthcounter=();
$Apache::lonxml::depth=-1;
@@ -191,78 +868,605 @@ sub initdepth {
sub increasedepth {
my ($token) = @_;
- if ($Apache::lonxml::depth<$Apache::lonxml::olddepth-1) {
- $#Apache::lonxml::depthcounter--;
- $Apache::lonxml::olddepth=$Apache::lonxml::depth;
- }
$Apache::lonxml::depth++;
-# print "<br>s $Apache::lonxml::depth : $Apache::lonxml::olddepth : $token->[1]<br>\n";
$Apache::lonxml::depthcounter[$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--;
-# print "<br>e $Apache::lonxml::depth : $Apache::lonxml::olddepth : $token->[1]<br>\n";
+ if ($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("Missing tags, unable to properly run file.");
+ $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] : $curdepth\n";
}
-sub get_all_text {
-
+sub get_all_text_unbalanced {
+#there is a copy of this in lonpublisher.pm
my($tag,$pars)= @_;
- my $depth=0;
my $token;
my $result='';
- while (($depth >=0) && ($token = $pars->get_token)) {
- if ($token->[0] eq 'T') {
+ $tag='<'.$tag.'>';
+ while ($token = $$pars[-1]->get_token) {
+ if (($token->[0] eq 'T')||($token->[0] eq 'C')||($token->[0] eq 'D')) {
$result.=$token->[1];
+ } elsif ($token->[0] eq 'PI') {
+ $result.=$token->[2];
} elsif ($token->[0] eq 'S') {
- if ($token->[1] eq $tag) { $depth++; }
$result.=$token->[4];
} elsif ($token->[0] eq 'E') {
- if ($token->[1] eq $tag) { $depth--; }
- #skip sending back the last end tag
- if ($depth > -1) { $result.=$token->[2]; }
+ $result.=$token->[2];
+ }
+ if ($result =~ /(.*)\Q$tag\E(.*)/s) {
+ &Apache::lonxml::debug('Got a winner with leftovers ::'.$2);
+ &Apache::lonxml::debug('Result is :'.$1);
+ $result=$1;
+ my $redo=$tag.$2;
+ &Apache::lonxml::newparser($pars,\$redo);
+ last;
+ }
+ }
+ return $result
+}
+
+sub increment_counter {
+ my ($increment) = @_;
+ if (defined($increment) && $increment gt 0) {
+ $Apache::lonxml::counter+=$increment;
+ } else {
+ $Apache::lonxml::counter++;
+ }
+ $Apache::lonxml::counter_changed=1;
+}
+
+sub init_counter {
+ if (defined($ENV{'form.counter'})) {
+ $Apache::lonxml::counter=$ENV{'form.counter'};
+ $Apache::lonxml::counter_changed=0;
+ } else {
+ $Apache::lonxml::counter=1;
+ $Apache::lonxml::counter_changed=1;
+ }
+}
+
+sub store_counter {
+ &Apache::lonnet::appenv(('form.counter' => $Apache::lonxml::counter));
+ return '';
+}
+
+sub get_all_text {
+ my($tag,$pars)= @_;
+ &Apache::lonxml::debug("Got a ".ref($pars));
+ my $gotfullstack=1;
+ if (ref($pars) ne 'ARRAY') {
+ $gotfullstack=0;
+ $pars=[$pars];
+ }
+ my $depth=0;
+ my $token;
+ my $result='';
+ if ( $tag =~ m:^/: ) {
+ my $tag=substr($tag,1);
+ #&Apache::lonxml::debug("have:$tag:");
+ my $top_empty=0;
+ while (($depth >=0) && ($#$pars > -1) && (!$top_empty)) {
+ while (($depth >=0) && ($token = $$pars[-1]->get_token)) {
+ #&Apache::lonxml::debug("e token:$token->[0]:$depth:$token->[1]:".$#$pars.":".$#Apache::lonxml::pwd);
+ 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] =~ /^$tag$/i) { $depth++; }
+ $result.=$token->[4];
+ } elsif ($token->[0] eq 'E') {
+ if ( $token->[1] =~ /^$tag$/i) { $depth--; }
+ #skip sending back the last end tag
+ if ($depth > -1) { $result.=$token->[2]; } else {
+ $$pars[-1]->unget_token($token);
+ }
+ }
+ }
+ if (($depth >=0) && ($#$pars == 0) ) { $top_empty=1; }
+ if (($depth >=0) && ($#$pars > 0) ) {
+ pop(@$pars);
+ pop(@Apache::lonxml::pwd);
+ }
}
+ if ($top_empty && $depth >= 0) {
+ #never found the end tag ran out of text, throw error send back blank
+ &error('Never found end tag for <'.$tag.'>');
+ if ($gotfullstack) {
+ my $newstring='</'.$tag.'>'.$result;
+ &Apache::lonxml::newparser($pars,\$newstring);
+ }
+ $result='';
+ }
+ } else {
+ while ($#$pars > -1) {
+ while ($token = $$pars[-1]->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 ( $token->[1] =~ /^$tag$/i) {
+ $$pars[-1]->unget_token($token); last;
+ } else {
+ $result.=$token->[4];
+ }
+ } elsif ($token->[0] eq 'E') {
+ $result.=$token->[2];
+ }
+ }
+ if (($#$pars > 0) ) {
+ pop(@$pars);
+ pop(@Apache::lonxml::pwd);
+ } else { last; }
+ }
}
+ if ($result =~ m|<LONCAPA_INTERNAL_TURN_STYLE_ON />|) {
+ $Apache::lonxml::usestyle=1;
+ }
+ #&Apache::lonxml::debug("Exit:$result:");
return $result
}
+sub newparser {
+ my ($parser,$contentref,$dir) = @_;
+ push (@$parser,HTML::LCParser->new($contentref));
+ $$parser['-1']->xml_mode('1');
+ if ( $dir eq '' ) {
+ push (@Apache::lonxml::pwd, $Apache::lonxml::pwd[$#Apache::lonxml::pwd]);
+ } else {
+ push (@Apache::lonxml::pwd, $dir);
+ }
+}
sub parstring {
my ($token) = @_;
my $temp='';
- map {
- if ($_=~/\w+/) {
- $temp .= "my \$$_=\"$token->[2]->{$_}\";"
+ foreach (@{$token->[3]}) {
+ unless ($_=~/\W/) {
+ my $val=$token->[2]->{$_};
+ $val =~ s/([\%\@\\\"\'])/\\$1/g;
+ #if ($val =~ m/^[\%\@]/) { $val="\\".$val; }
+ $temp .= "my \$$_=\"$val\";"
}
- } @{$token->[3]};
+ }
return $temp;
}
-$Apache::lonxml::debug=0;
+sub writeallows {
+ unless ($#extlinks>=0) { return; }
+ my $thisurl='/res/'.&Apache::lonnet::declutter(shift);
+ if ($ENV{'httpref.'.$thisurl}) {
+ $thisurl=$ENV{'httpref.'.$thisurl};
+ }
+ my $thisdir=$thisurl;
+ $thisdir=~s/\/[^\/]+$//;
+ my %httpref=();
+ foreach (@extlinks) {
+ $httpref{'httpref.'.
+ &Apache::lonnet::hreflocation($thisdir,$_)}=$thisurl;
+ }
+ @extlinks=();
+ &Apache::lonnet::appenv(%httpref);
+}
+
+#
+# Afterburner handles anchors, highlights and links
+#
+sub afterburn {
+ my $result=shift;
+ &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
+ ['highlight','anchor','link']);
+ if ($ENV{'form.highlight'}) {
+ foreach (split(/\,/,$ENV{'form.highlight'})) {
+ my $anchorname=$_;
+ my $matchthis=$anchorname;
+ $matchthis=~s/\_+/\\s\+/g;
+ $result=~s/($matchthis)/\<font color=\"red\"\>$1\<\/font\>/gs;
+ }
+ }
+ if ($ENV{'form.link'}) {
+ foreach (split(/\,/,$ENV{'form.link'})) {
+ my ($anchorname,$linkurl)=split(/\>/,$_);
+ my $matchthis=$anchorname;
+ $matchthis=~s/\_+/\\s\+/g;
+ $result=~s/($matchthis)/\<a href=\"$linkurl\"\>$1\<\/a\>/gs;
+ }
+ }
+ if ($ENV{'form.anchor'}) {
+ my $anchorname=$ENV{'form.anchor'};
+ my $matchthis=$anchorname;
+ $matchthis=~s/\_+/\\s\+/g;
+ $result=~s/($matchthis)/\<a name=\"$anchorname\"\>$1\<\/a\>/s;
+ $result.=(<<"ENDSCRIPT");
+<script type="text/javascript">
+ document.location.hash='$anchorname';
+</script>
+ENDSCRIPT
+ }
+ return $result;
+}
+
+sub storefile {
+ my ($file,$contents)=@_;
+ if (my $fh=Apache::File->new('>'.$file)) {
+ print $fh $contents;
+ $fh->close();
+ } else {
+ &warning("Unable to save file $file");
+ }
+}
+
+sub createnewhtml {
+ my $filecontents=(<<SIMPLECONTENT);
+<html>
+<head>
+<title>
+ Title of Document Goes Here
+</title>
+</head>
+<body bgcolor="#FFFFFF">
+
+ Body of Document Goes Here
+
+</body>
+</html>
+SIMPLECONTENT
+ return $filecontents;
+}
+
+
+sub inserteditinfo {
+ my ($result,$filecontents)=@_;
+ $filecontents = &HTML::Entities::encode($filecontents);
+# my $editheader='<a href="#editsection">Edit below</a><hr />';
+ my $xml_help = Apache::loncommon::helpLatexCheatsheet();
+ my $titledisplay=&display_title();
+ my $buttons=(<<BUTTONS);
+<input type="submit" name="attemptclean"
+ value="Save and then attempt to clean HTML" />
+<input type="submit" name="savethisfile" value="Save this" />
+<input type="submit" name="viewmode" value="View" />
+BUTTONS
+ my $editfooter=(<<ENDFOOTER);
+<hr />
+<a name="editsection" />
+<form method="post">
+$xml_help
+<input type="hidden" name="editmode" value="Edit" />
+$buttons<br />
+<textarea cols="80" rows="40" name="filecont">$filecontents</textarea>
+<br />$buttons
+<br />
+</form>
+$titledisplay
+ENDFOOTER
+# $result=~s/(\<body[^\>]*\>)/$1$editheader/is;
+ $result=~s/(\<\/body\>)/$editfooter/is;
+ return $result;
+}
+
+sub get_target {
+ my $viewgrades=&Apache::lonnet::allowed('vgr',$ENV{'request.course.id'});
+ if ( $ENV{'request.state'} eq 'published') {
+ if ( defined($ENV{'form.grade_target'})
+ && ($viewgrades == 'F' )) {
+ return ($ENV{'form.grade_target'});
+ } elsif (defined($ENV{'form.grade_target'})) {
+ if (($ENV{'form.grade_target'} eq 'web') ||
+ ($ENV{'form.grade_target'} eq 'tex') ) {
+ return $ENV{'form.grade_target'}
+ } else {
+ return 'web';
+ }
+ } else {
+ return 'web';
+ }
+ } elsif ($ENV{'request.state'} eq 'construct') {
+ if ( defined($ENV{'form.grade_target'})) {
+ return ($ENV{'form.grade_target'});
+ } else {
+ return 'web';
+ }
+ } else {
+ return 'web';
+ }
+}
+
+sub handler {
+ my $request=shift;
+
+ my $target=&get_target();
+
+ $Apache::lonxml::debug=$ENV{'user.debug'};
+
+ if ($ENV{'browser.mathml'}) {
+ $request->content_type('text/xml');
+ } else {
+ $request->content_type('text/html');
+ }
+ &Apache::loncommon::no_cache($request);
+ $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'}) || ($ENV{'form.attemptclean'})) {
+ &storefile($file,$ENV{'form.filecont'});
+ }
+ }
+ my %mystyle;
+ my $result = '';
+ my $filecontents=&Apache::lonnet::getfile($file);
+ if ($filecontents eq -1) {
+ $result=(<<ENDNOTFOUND);
+<html>
+<head>
+<title>File not found</title>
+</head>
+<body bgcolor="#FFFFFF">
+<b>File not found: $file</b>
+</body>
+</html>
+ENDNOTFOUND
+ $filecontents='';
+ if ($ENV{'request.state'} ne 'published') {
+ $filecontents=&createnewhtml();
+ $ENV{'form.editmode'}='Edit'; #force edit mode
+ }
+ } else {
+ unless ($ENV{'request.state'} eq 'published') {
+ if ($ENV{'form.attemptclean'}) {
+ $filecontents=&htmlclean($filecontents,1);
+ }
+#
+# we are in construction space, see if edit mode forced
+ &Apache::loncommon::get_unprocessed_cgi
+ ($ENV{'QUERY_STRING'},['editmode']);
+ }
+ if (!$ENV{'form.editmode'} || $ENV{'form.viewmode'}) {
+ $result = &Apache::lonxml::xmlparse($request,$target,$filecontents,
+ '',%mystyle);
+ }
+ }
+
+#
+# Edit action? Insert editing commands
+#
+ unless ($ENV{'request.state'} eq 'published') {
+ if ($ENV{'form.editmode'} && (!($ENV{'form.viewmode'}))) {
+ my $displayfile=$request->uri;
+ $displayfile=~s/^\/[^\/]*//;
+ $result='<html><body bgcolor="#FFFFFF"><h3>'.$displayfile.
+ '</h3></body></html>';
+ $result=&inserteditinfo($result,$filecontents);
+ }
+ }
+
+ writeallows($request->uri);
+
+
+ $request->print($result);
+
+ return OK;
+}
+
+sub display_title {
+ my $result;
+ if ($ENV{'request.state'} eq 'construct') {
+ my $title=&Apache::lonnet::gettitle();
+ if (!defined($title) || $title eq '') {
+ $title = $ENV{'request.filename'};
+ $title = substr($title, rindex($title, '/') + 1);
+ }
+ $result = "<script type='text/javascript'>top.document.title = '$title - LON-CAPA Construction Space';</script>";
+ }
+ return $result;
+}
+
sub debug {
if ($Apache::lonxml::debug eq 1) {
- print "DEBUG:".$_[0]."<br>\n";
+ $|=1;
+ print('<font size="-2"<pre>DEBUG:'.&HTML::Entities::encode($_[0])."</pre></font>\n");
}
}
+
sub error {
- if ($Apache::lonxml::debug eq 1) {
- print "ERROR:".$_[0]."<br>\n";
+ $errorcount++;
+ if (($Apache::lonxml::debug eq 1) || ($ENV{'request.state'} eq 'construct') ) {
+ # If printing in construction space, put the error inside <pre></pre>
+ print "<b>ERROR:</b>".join("\n",@_)."\n";
+ } else {
+ print "<b>An Error occured while processing this resource. The instructor has been notified.</b> <br />";
+ #notify author
+ &Apache::lonmsg::author_res_msg($ENV{'request.filename'},join('<br />',@_));
+ #notify course
+ if ( $ENV{'request.course.id'} ) {
+ my (undef,%users)=&Apache::lonfeedback::decide_receiver(undef,0,1,1,1);
+ my $declutter=&Apache::lonnet::declutter($ENV{'request.filename'});
+ foreach (keys %users) {
+ my ($user,$domain) = split(/:/, $_);
+ &Apache::lonmsg::user_normal_msg($user,$domain,
+ "Error [$declutter]",join('<br />',@_));
+ }
+ }
+
+ #FIXME probably shouldn't have me get everything forever.
+ &Apache::lonmsg::user_normal_msg('albertel','msu',"Error in $ENV{'request.filename'}",join('<br />',@_));
+ #&Apache::lonmsg::user_normal_msg('albertel','103',"Error in $ENV{'request.filename'}",$_[0]);
}
}
+
sub warning {
- if ($Apache::lonxml::debug eq 1) {
- print "WARNING:".$_[0]."<br>\n";
+ $warningcount++;
+
+ if ($ENV{'form.grade_target'} ne 'tex') {
+ if ($ENV{'request.state'} eq 'construct' || $Apache::lonxml::debug) {
+ print "<b>W</b>ARNING<b>:</b>".join('<br />',@_)."<br />\n";
+ }
}
}
-1;
-__END__
+sub get_param {
+ my ($param,$parstack,$safeeval,$context,$case_insensitive) = @_;
+ if ( ! $context ) { $context = -1; }
+ my $args ='';
+ if ( $#$parstack > (-2-$context) ) { $args=$$parstack[$context]; }
+ if ( ! $args ) { return undef; }
+ if ( $case_insensitive ) {
+ if ($args =~ s/(my \$)(\Q$param\E)(=\")/$1.lc($2).$3/ei) {
+ return &Apache::run::run("{$args;".'return $'.$param.'}',
+ $safeeval); #'
+ } else {
+ return undef;
+ }
+ } else {
+ if ( $args =~ /my \$\Q$param\E=\"/ ) {
+ return &Apache::run::run("{$args;".'return $'.$param.'}',
+ $safeeval); #'
+ } else {
+ return undef;
+ }
+ }
+}
+
+sub get_param_var {
+ my ($param,$parstack,$safeeval,$context,$case_insensitive) = @_;
+ if ( ! $context ) { $context = -1; }
+ my $args ='';
+ if ( $#$parstack > (-2-$context) ) { $args=$$parstack[$context]; }
+ &Apache::lonxml::debug("Args are $args param is $param");
+ if ($case_insensitive) {
+ if (! ($args=~s/(my \$)(\Q$param\E)(=\")/$1.lc($2).$3/ei)) {
+ return undef;
+ }
+ } elsif ( $args !~ /my \$\Q$param\E=\"/ ) { return undef; }
+ my $value=&Apache::run::run("{$args;".'return $'.$param.'}',$safeeval); #'
+ &Apache::lonxml::debug("first run is $value");
+ if ($value =~ /^[\$\@\%]\w+$/) {
+ &Apache::lonxml::debug("doing second");
+ my @result=&Apache::run::run("return $value",$safeeval,1);
+ if (!defined($result[0])) {
+ return $value
+ } else {
+ if (wantarray) { return @result; } else { return $result[0]; }
+ }
+ } else {
+ return $value;
+ }
+}
+
+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,$descrip,$color,$function,$show) = split(/,/, $line);
+ if ($tag) {
+ $insertlist{"$tagnum.tag"} = $tag;
+ $insertlist{"$tagnum.description"} = $descrip;
+ $insertlist{"$tagnum.color"} = $color;
+ $insertlist{"$tagnum.function"} = $function;
+ if (!defined($show)) { $show='yes'; }
+ $insertlist{"$tagnum.show"}= $show;
+ $insertlist{"$tag.num"}=$tagnum;
+ $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);
+ }
+ }
+ }
+ $tagnum++;
+ }
+}
+sub description {
+ my ($token)=@_;
+ my $tagnum;
+ my $tag=$token->[1];
+ foreach my $namespace (reverse @Apache::lonxml::namespace) {
+ my $testtag=$namespace.'::'.$tag;
+ $tagnum=$insertlist{"$testtag.num"};
+ if (defined($tagnum)) { last; }
+ }
+ if (!defined ($tagnum)) { $tagnum=$Apache::lonxml::insertlist{"$tag.num"}; }
+ return $insertlist{$tagnum.'.description'};
+}
+# ----------------------------------------------------------------- whichuser
+# returns a list of $symb, $courseid, $domain, $name that is correct for
+# calls to lonnet functions for this setup.
+# - looks for form.grade_ parameters
+sub whichuser {
+ my ($passedsymb)=@_;
+ my ($symb,$courseid,$domain,$name,$publicuser);
+ if (defined($ENV{'form.grade_symb'})) {
+ my $tmp_courseid=$ENV{'form.grade_courseid'};
+ my $allowed=&Apache::lonnet::allowed('mgr',$tmp_courseid);
+ if ($allowed) {
+ $symb=$ENV{'form.grade_symb'};
+ $courseid=$ENV{'form.grade_courseid'};
+ $domain=$ENV{'form.grade_domain'};
+ $name=$ENV{'form.grade_username'};
+ }
+ } else {
+ if (!$passedsymb) {
+ $symb=&Apache::lonnet::symbread();
+ } else {
+ $symb=$passedsymb;
+ }
+ $courseid=$ENV{'request.course.id'};
+ $domain=$ENV{'user.domain'};
+ $name=$ENV{'user.name'};
+ if ($name eq 'public' && $domain eq 'public') {
+ if (!defined($ENV{'form.username'})) {
+ $ENV{'form.username'}.=time.rand(10000000);
+ }
+ $name.=$ENV{'form.username'};
+ }
+ }
+ return ($symb,$courseid,$domain,$name,$publicuser);
+}
+1;
+__END__