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version 1.9, 2000/07/05 18:04:45
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version 1.252, 2003/05/16 18:34:56
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| # The LearningOnline Network with CAPA |
# The LearningOnline Network with CAPA |
| # XML Parser Module |
# XML Parser Module |
| # |
# |
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# $Id$ |
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# |
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# Copyright Michigan State University Board of Trustees |
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# |
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# This file is part of the LearningOnline Network with CAPA (LON-CAPA). |
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# |
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# LON-CAPA is free software; you can redistribute it and/or modify |
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# it under the terms of the GNU General Public License as published by |
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# the Free Software Foundation; either version 2 of the License, or |
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# (at your option) any later version. |
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# |
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# LON-CAPA is distributed in the hope that it will be useful, |
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# but WITHOUT ANY WARRANTY; without even the implied warranty of |
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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# GNU General Public License for more details. |
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# |
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# You should have received a copy of the GNU General Public License |
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# along with LON-CAPA; if not, write to the Free Software |
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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# |
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# /home/httpd/html/adm/gpl.txt |
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# |
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# http://www.lon-capa.org/ |
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# |
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# Copyright for TtHfunc and TtMfunc by Ian Hutchinson. |
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# TtHfunc and TtMfunc (the "Code") may be compiled and linked into |
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# binary executable programs or libraries distributed by the |
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# Michigan State University (the "Licensee"), but any binaries so |
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# distributed are hereby licensed only for use in the context |
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# of a program or computational system for which the Licensee is the |
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# primary author or distributor, and which performs substantial |
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# additional tasks beyond the translation of (La)TeX into HTML. |
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# The C source of the Code may not be distributed by the Licensee |
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# to any other parties under any circumstances. |
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# |
| # last modified 06/26/00 by Alexander Sakharuk |
# last modified 06/26/00 by Alexander Sakharuk |
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# 11/6 Gerd Kortemeyer |
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# 6/1/1 Gerd Kortemeyer |
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# 2/21,3/13 Guy |
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# 3/29,5/4 Gerd Kortemeyer |
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# 5/26 Gerd Kortemeyer |
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# 5/27 H. K. Ng |
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# 6/2,6/3,6/8,6/9 Gerd Kortemeyer |
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# 6/12,6/13 H. K. Ng |
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# 6/16 Gerd Kortemeyer |
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# 7/27 H. K. Ng |
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# 8/7,8/9,8/10,8/11,8/15,8/16,8/17,8/18,8/20,8/23,8/24 Gerd Kortemeyer |
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# Guy Albertelli |
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# 9/26 Gerd Kortemeyer |
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# Dec Guy Albertelli |
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# YEAR=2002 |
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# 1/1 Gerd Kortemeyer |
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# 1/2 Matthew Hall |
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# 1/3 Gerd Kortemeyer |
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# |
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|
| package Apache::lonxml; |
package Apache::lonxml; |
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use vars |
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qw(@pwd @outputstack $redirection $import @extlinks $metamode $evaluate %insertlist @namespace $prevent_entity_encode $errorcount $warningcount); |
| use strict; |
use strict; |
| use HTML::TokeParser; |
use HTML::LCParser(); |
| use Safe; |
use HTML::TreeBuilder(); |
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use HTML::Entities(); |
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use Safe(); |
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use Safe::Hole(); |
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use Math::Cephes(); |
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use Math::Random(); |
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use Opcode(); |
| |
|
| sub register { |
sub register { |
| my $space; |
my ($space,@taglist) = @_; |
| my @taglist; |
foreach my $temptag (@taglist) { |
| my $temptag; |
push(@{ $Apache::lonxml::alltags{$temptag} },$space); |
| ($space,@taglist) = @_; |
|
| foreach $temptag (@taglist) { |
|
| $Apache::lonxml::alltags{$temptag}=$space; |
|
| } |
} |
| } |
} |
| |
|
| use Apache::style; |
sub deregister { |
| use Apache::lontexconvert; |
my ($space,@taglist) = @_; |
| use Apache::run; |
foreach my $temptag (@taglist) { |
| use Apache::londefdef; |
my $tempspace = $Apache::lonxml::alltags{$temptag}[-1]; |
| use Apache::scripttag; |
if ($tempspace eq $space) { |
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pop(@{ $Apache::lonxml::alltags{$temptag} }); |
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} |
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} |
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#&printalltags(); |
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} |
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|
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use Apache::Constants qw(:common); |
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use Apache::lontexconvert(); |
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use Apache::style(); |
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use Apache::run(); |
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use Apache::londefdef(); |
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use Apache::scripttag(); |
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use Apache::edit(); |
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use Apache::lonnet(); |
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use Apache::File(); |
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use Apache::loncommon(); |
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use Apache::lonfeedback(); |
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use Apache::lonmsg(); |
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use Apache::loncacc(); |
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|
| #================================================== Main subroutine: xmlparse |
#================================================== Main subroutine: xmlparse |
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#debugging control, to turn on debugging modify the correct handler |
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$Apache::lonxml::debug=0; |
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|
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# keeps count of the number of warnings and errors generated in a parse |
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$warningcount=0; |
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$errorcount=0; |
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|
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#path to the directory containing the file currently being processed |
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@pwd=(); |
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|
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#these two are used for capturing a subset of the output for later processing, |
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#don't touch them directly use &startredirection and &endredirection |
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@outputstack = (); |
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$redirection = 0; |
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|
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#controls wheter the <import> tag actually does |
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$import = 1; |
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@extlinks=(); |
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|
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# meta mode is a bit weird only some output is to be turned off |
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#<output> tag turns metamode off (defined in londefdef.pm) |
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$metamode = 0; |
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|
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# turns on and of run::evaluate actually derefencing var refs |
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$evaluate = 1; |
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|
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# data structure for eidt mode, determines what tags can go into what other tags |
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%insertlist=(); |
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|
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# stores the list of active tag namespaces |
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@namespace=(); |
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|
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# if 0 all high ASCII characters will be encoded into HTML Entities |
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$prevent_entity_encode=0; |
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|
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# has the dynamic menu been updated to know about this resource |
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$Apache::lonxml::registered=0; |
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|
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# a pointer the the Apache request object |
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$Apache::lonxml::request=''; |
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|
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# a problem number counter, and check on ether it is used |
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$Apache::lonxml::counter=1; |
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$Apache::lonxml::counter_changed=0; |
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|
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#internal check on whether to look at style defs |
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$Apache::lonxml::usestyle=1; |
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|
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sub xmlbegin { |
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my $output=''; |
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if ($ENV{'browser.mathml'}) { |
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$output='<?xml version="1.0"?>' |
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.'<?xml-stylesheet type="text/css" href="/adm/MathML/mathml.css"?>' |
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.'<!DOCTYPE html SYSTEM "/adm/MathML/mathml.dtd" ' |
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.'[<!ENTITY mathns "http://www.w3.org/1998/Math/MathML">]>' |
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.'<html xmlns:math="http://www.w3.org/1998/Math/MathML" ' |
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.'xmlns="http://www.w3.org/TR/REC-html40">'; |
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} else { |
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$output='<html>'; |
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} |
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return $output; |
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} |
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|
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sub xmlend { |
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my ($discussiononly,$symb)=@_; |
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my $discussion=''; |
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if ($ENV{'request.course.id'}) { |
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my $crs='/'.$ENV{'request.course.id'}; |
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if ($ENV{'request.course.sec'}) { |
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$crs.='_'.$ENV{'request.course.sec'}; |
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} |
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$crs=~s/\_/\//g; |
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my $seeid=&Apache::lonnet::allowed('rin',$crs); |
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unless ($symb) { |
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$symb=&Apache::lonnet::symbread(); |
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} |
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if ($symb) { |
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my %contrib=&Apache::lonnet::restore($symb,$ENV{'request.course.id'}, |
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$ENV{'course.'.$ENV{'request.course.id'}.'.domain'}, |
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$ENV{'course.'.$ENV{'request.course.id'}.'.num'}); |
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if ($contrib{'version'}) { |
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unless ($discussiononly) { |
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$discussion.= |
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'<address><hr />'; |
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} |
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my $idx; |
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for ($idx=1;$idx<=$contrib{'version'};$idx++) { |
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my $hidden=($contrib{'hidden'}=~/\.$idx\./); |
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my $deleted=($contrib{'deleted'}=~/\.$idx\./); |
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unless ((($hidden) && (!$seeid)) || ($deleted)) { |
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my $message=$contrib{$idx.':message'}; |
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$message=~s/\n/\<br \/\>/g; |
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$message=&Apache::lontexconvert::msgtexconverted($message); |
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if ($contrib{$idx.':attachmenturl'}) { |
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my ($fname,$ft) |
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=($contrib{$idx.':attachmenturl'}=~/\/(\w+)\.(\w+)$/); |
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$message.='<p>Attachment: <a href="'. |
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&Apache::lonnet::tokenwrapper($contrib{$idx.':attachmenturl'}). |
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'"><tt>'.$fname.'.'.$ft.'</tt></a>'; |
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} |
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if ($message) { |
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if ($hidden) { |
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$message='<font color="#888888">'.$message.'</font>'; |
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} |
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my $screenname=&Apache::loncommon::screenname( |
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$contrib{$idx.':sendername'}, |
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$contrib{$idx.':senderdomain'}); |
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my $plainname=&Apache::loncommon::nickname( |
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$contrib{$idx.':sendername'}, |
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$contrib{$idx.':senderdomain'}); |
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|
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my $sender='Anonymous'; |
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if ((!$contrib{$idx.':anonymous'}) || ($seeid)) { |
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$sender=&Apache::loncommon::aboutmewrapper( |
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$plainname, |
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$contrib{$idx.':sendername'}, |
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$contrib{$idx.':senderdomain'}).' ('. |
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$contrib{$idx.':sendername'}.' at '. |
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$contrib{$idx.':senderdomain'}.')'; |
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if ($contrib{$idx.':anonymous'}) { |
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$sender.=' [anonymous] '. |
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$screenname; |
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} |
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if ($seeid) { |
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if ($hidden) { |
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$sender.=' <a href="/adm/feedback?unhide='. |
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$symb.':::'.$idx.'">Make Visible</a>'; |
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} else { |
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$sender.=' <a href="/adm/feedback?hide='. |
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$symb.':::'.$idx.'">Hide</a>'; |
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} |
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$sender.=' <a href="/adm/feedback?deldisc='. |
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$symb.':::'.$idx.'">Delete</a>'; |
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} |
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} else { |
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if ($screenname) { |
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$sender='<i>'.$screenname.'</i>'; |
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} |
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} |
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$discussion.='<p><b>'.$sender.'</b> ('. |
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localtime($contrib{$idx.':timestamp'}). |
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'):<blockquote>'.$message. |
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'</blockquote></p>'; |
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} |
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} |
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} |
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unless ($discussiononly) { |
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$discussion.='</address>'; |
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} |
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} |
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if ($discussiononly) { |
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$discussion.=(<<ENDDISCUSS); |
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<form action="/adm/feedback" method="post" name="mailform" enctype="multipart/form-data"> |
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<input type="submit" name="discuss" value="Post Discussion" /> |
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<input type="submit" name="anondiscuss" value="Post Anonymous Discussion" /> |
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<input type="hidden" name="symb" value="$symb" /> |
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<input type="hidden" name="sendit" value="true" /> |
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<br /> |
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<font size="1">Note: in anonymous discussion, your name is visible only to |
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course faculty</font><br /> |
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<textarea name=comment cols=60 rows=10 wrap=hard></textarea> |
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<p> |
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Attachment (128 KB max size): <input type="file" name="attachment" /> |
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</p> |
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</form> |
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ENDDISCUSS |
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$discussion.=&Apache::lonfeedback::generate_preview_button(); |
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} |
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} |
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} |
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return $discussion.($discussiononly?'':'</html>'); |
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} |
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|
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sub tokeninputfield { |
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my $defhost=$Apache::lonnet::perlvar{'lonHostID'}; |
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$defhost=~tr/a-z/A-Z/; |
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return (<<ENDINPUTFIELD) |
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<script type="text/javascript"> |
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function updatetoken() { |
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var comp=new Array; |
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var barcode=unescape(document.tokeninput.barcode.value); |
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comp=barcode.split('*'); |
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if (typeof(comp[0])!="undefined") { |
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document.tokeninput.codeone.value=comp[0]; |
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} |
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if (typeof(comp[1])!="undefined") { |
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document.tokeninput.codetwo.value=comp[1]; |
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} |
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if (typeof(comp[2])!="undefined") { |
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comp[2]=comp[2].toUpperCase(); |
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document.tokeninput.codethree.value=comp[2]; |
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} |
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document.tokeninput.barcode.value=''; |
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} |
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</script> |
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<form method="post" name="tokeninput"> |
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<table border="2" bgcolor="#FFFFBB"> |
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<tr><th>DocID Checkin</th></tr> |
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<tr><td> |
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<table> |
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<tr> |
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<td>Scan in Barcode</td> |
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<td><input type="text" size="22" name="barcode" |
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onChange="updatetoken()"/></td> |
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</tr> |
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<tr><td><i>or</i> Type in DocID</td> |
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<td> |
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<input type="text" size="5" name="codeone" /> |
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<b><font size="+2">*</font></b> |
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<input type="text" size="5" name="codetwo" /> |
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<b><font size="+2">*</font></b> |
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<input type="text" size="10" name="codethree" value="$defhost" |
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onChange="this.value=this.value.toUpperCase()" /> |
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</td></tr> |
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</table> |
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</td></tr> |
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<tr><td><input type="submit" value="Check in DocID" /></td></tr> |
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</table> |
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</form> |
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ENDINPUTFIELD |
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} |
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|
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sub maketoken { |
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my ($symb,$tuname,$tudom,$tcrsid)=@_; |
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unless ($symb) { |
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$symb=&Apache::lonnet::symbread(); |
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} |
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unless ($tuname) { |
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$tuname=$ENV{'user.name'}; |
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$tudom=$ENV{'user.domain'}; |
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$tcrsid=$ENV{'request.course.id'}; |
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} |
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|
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return &Apache::lonnet::checkout($symb,$tuname,$tudom,$tcrsid); |
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} |
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|
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sub printtokenheader { |
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my ($target,$token,$tsymb,$tcrsid,$tudom,$tuname)=@_; |
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unless ($token) { return ''; } |
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|
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my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser(); |
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unless ($tsymb) { |
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$tsymb=$symb; |
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} |
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unless ($tuname) { |
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$tuname=$name; |
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$tudom=$domain; |
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$tcrsid=$courseid; |
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} |
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|
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my %reply=&Apache::lonnet::get('environment', |
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['firstname','middlename','lastname','generation'], |
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$tudom,$tuname); |
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my $plainname=$reply{'firstname'}.' '. |
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$reply{'middlename'}.' '. |
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$reply{'lastname'}.' '. |
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$reply{'generation'}; |
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|
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if ($target eq 'web') { |
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my %idhash=&Apache::lonnet::idrget($tudom,($tuname)); |
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return |
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'<img align="right" src="/cgi-bin/barcode.png?encode='.$token.'" />'. |
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'Checked out for '.$plainname. |
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'<br />User: '.$tuname.' at '.$tudom. |
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'<br />ID: '.$idhash{$tuname}. |
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'<br />CourseID: '.$tcrsid. |
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'<br />Course: '.$ENV{'course.'.$tcrsid.'.description'}. |
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'<br />DocID: '.$token. |
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'<br />Time: '.localtime().'<hr />'; |
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} else { |
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return $token; |
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} |
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} |
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|
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sub fontsettings() { |
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my $headerstring=''; |
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if (($ENV{'browser.os'} eq 'mac') && (!$ENV{'browser.mathml'})) { |
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$headerstring.= |
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'<meta Content-Type="text/html; charset=x-mac-roman">'; |
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} elsif (!$ENV{'browser.mathml'}) { |
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$headerstring.= |
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'<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />'; |
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} |
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return $headerstring; |
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} |
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|
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sub printalltags { |
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my $temp; |
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foreach $temp (sort keys %Apache::lonxml::alltags) { |
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&Apache::lonxml::debug("$temp -- ". |
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join(',',@{ $Apache::lonxml::alltags{$temp} })); |
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} |
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} |
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|
| sub xmlparse { |
sub xmlparse { |
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my ($request,$target,$content_file_string,$safeinit,%style_for_target) = @_; |
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|
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&setup_globals($request,$target); |
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&Apache::inputtags::initialize_inputtags(); |
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&Apache::outputtags::initialize_outputtags(); |
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&Apache::edit::initialize_edit(); |
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|
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# |
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# do we have a course style file? |
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# |
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|
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if ($ENV{'request.course.id'} && $ENV{'request.state'} ne 'construct') { |
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my $bodytext= |
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$ENV{'course.'.$ENV{'request.course.id'}.'.default_xml_style'}; |
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if ($bodytext) { |
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my $location=&Apache::lonnet::filelocation('',$bodytext); |
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my $styletext=&Apache::lonnet::getfile($location); |
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if ($styletext ne '-1') { |
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%style_for_target = (%style_for_target, |
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&Apache::style::styleparser($target,$styletext)); |
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} |
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} |
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} |
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|
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#&printalltags(); |
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my @pars = (); |
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my $pwd=$ENV{'request.filename'}; |
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$pwd =~ s:/[^/]*$::; |
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&newparser(\@pars,\$content_file_string,$pwd); |
| |
|
| my ($target,$content_file_string,%style_for_target) = @_; |
|
| my $pars = HTML::TokeParser->new(\$content_file_string); |
|
| my $currentstring = ''; |
|
| my $finaloutput = ''; |
|
| my $newarg = ''; |
|
| my $safeeval = new Safe; |
my $safeeval = new Safe; |
| $safeeval->permit("entereval"); |
my $safehole = new Safe::Hole; |
| |
&init_safespace($target,$safeeval,$safehole,$safeinit); |
| #-------------------- Redefinition of the target in the case of compound target |
#-------------------- Redefinition of the target in the case of compound target |
| |
|
| ($target, my @tenta) = split('&&',$target); |
($target, my @tenta) = split('&&',$target); |
| |
|
| #------------------------- Stack definition (in stack we have all current tags) |
my @stack = (); |
| |
|
| my @stack = (); |
|
| my @parstack = (); |
my @parstack = (); |
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&initdepth; |
| |
|
| #------------------------------------- Parse input string (content_file_string) |
my $finaloutput = &inner_xmlparse($target,\@stack,\@parstack,\@pars, |
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$safeeval,\%style_for_target); |
| my $token; |
if ($ENV{'request.uri'}) { |
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&writeallows($ENV{'request.uri'}); |
| while ($token = $pars->get_token) { |
|
| if ($token->[0] eq 'T') { |
|
| $finaloutput .= &Apache::run::evaluate($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)); |
|
| |
|
| if (exists $style_for_target{$token->[1]}) { |
|
| #basically recurse, but we never got more than one level down so just |
|
| #create the new context here |
|
| my @innerstack = (); |
|
| my @innerparstack = (); |
|
| # use style file definition |
|
| $newarg = $style_for_target{$token->[1]}; |
|
| my $pat = HTML::TokeParser->new(\$newarg); |
|
| my $tokenpat = ''; |
|
| my $partstring = ''; |
|
| |
|
| while ($tokenpat = $pat->get_token) { |
|
| if ($tokenpat->[0] eq 'T') { |
|
| $partstring = $tokenpat->[1]; |
|
| } elsif ($tokenpat->[0] eq 'S') { |
|
| push (@innerstack,$tokenpat->[1]); |
|
| push (@innerparstack,&parstring($tokenpat)); |
|
| $partstring = &callsub("start_$tokenpat->[1]", |
|
| $target, $tokenpat, \@innerparstack) |
|
| } elsif ($tokenpat->[0] eq 'E') { |
|
| #clear out any tags that didn't end |
|
| while ($tokenpat->[1] ne $innerstack[$#innerstack] |
|
| && ($#innerstack > 0)) {pop @innerstack;pop @innerparstack;} |
|
| $partstring = &callsub("end_$tokenpat->[1]", |
|
| $target, $tokenpat, \@innerparstack) |
|
| } |
|
| #pass both the variable to the style tag, and the tag we |
|
| #are processing inside the <definedtag> |
|
| $finaloutput .= &Apache::run::evaluate($partstring,$safeeval, |
|
| $parstack[$#parstack].$innerparstack[$#innerparstack]); |
|
| if ($tokenpat->[0] eq 'E') { pop @innerstack;pop @innerparstack; } |
|
| } |
|
| } else { |
|
| my $result = &callsub("start_$token->[1]", $target, $token, \@parstack); |
|
| $finaloutput .= &Apache::run::evaluate($result,$safeeval, |
|
| $parstack[$#parstack]); |
|
| } |
|
| } elsif ($token->[0] eq 'E') { |
|
| #clear out any tags that didn't end |
|
| while ($token->[1] ne $stack[$#stack] |
|
| && ($#stack > 0)) {pop @stack;pop @parstack;} |
|
| |
|
| if (exists $style_for_target{'/'."$token->[1]"}) { |
|
| my @innerstack = (); |
|
| my @innerparstack = (); |
|
| $newarg = $style_for_target{'/'."$token->[1]"}; |
|
| my $pat = HTML::TokeParser->new(\$newarg); |
|
| my $tokenpat; |
|
| my $partstring = ''; |
|
| |
|
| while ($tokenpat = $pat->get_token) { |
|
| if ($tokenpat->[0] eq 'T') { |
|
| $partstring .= $tokenpat->[1]; |
|
| } elsif ($tokenpat->[0] eq 'S') { |
|
| push (@innerstack,$tokenpat->[1]); |
|
| push (@innerparstack,&parstring($tokenpat)); |
|
| $partstring = &callsub("start_$tokenpat->[1]", |
|
| $target, $tokenpat, \@innerparstack) |
|
| } elsif ($tokenpat->[0] eq 'E') { |
|
| #clear out any tags that didn't end |
|
| while ($tokenpat->[1] ne $innerstack[$#innerstack] |
|
| && ($#innerstack > 0)) {pop @innerstack;pop @innerparstack;} |
|
| $partstring = &callsub("end_$tokenpat->[1]", |
|
| $target, $tokenpat, \@innerparstack) |
|
| } |
|
| #pass both the variable to the style tag, and the tag we |
|
| #are processing inside the <definedtag> |
|
| $finaloutput .= &Apache::run::evaluate($partstring,$safeeval, |
|
| $parstack[$#parstack].$innerparstack[$#innerparstack]); |
|
| if ($tokenpat->[0] eq 'E') { pop @innerstack;pop @innerparstack; } |
|
| } |
|
| } else { |
|
| my $result = &callsub("start_$token->[1]", $target, $token, \@parstack); |
|
| $finaloutput .= &Apache::run::evaluate($result,$safeeval, |
|
| $parstack[$#parstack]); |
|
| } |
|
| pop @stack; |
|
| pop @parstack; |
|
| } |
|
| } |
} |
| |
if ($Apache::lonxml::counter_changed) { &store_counter() } |
| return $finaloutput; |
return $finaloutput; |
| } |
} |
| |
|
| |
sub htmlclean { |
| |
my ($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; |
| |
while ( $#$pars > -1 ) { |
| |
while ($token = $$pars['-1']->get_token) { |
| |
if (($token->[0] eq 'T') || ($token->[0] eq 'C') || ($token->[0] eq 'D') ) { |
| |
if ($metamode<1) { |
| |
my $text=$token->[1]; |
| |
if ($token->[0] eq 'C' && $target eq 'tex') { |
| |
$text = ''; |
| |
# $text = '%'.$text."\n"; |
| |
} |
| |
$result.=$text; |
| |
} |
| |
} elsif ($token->[0] eq 'PI') { |
| |
if ($metamode<1) { |
| |
$result=$token->[2]; |
| |
} |
| |
} elsif ($token->[0] eq 'S') { |
| |
# add tag to stack |
| |
push (@$stack,$token->[1]); |
| |
# add parameters list to another stack |
| |
push (@$parstack,&parstring($token)); |
| |
&increasedepth($token); |
| |
if ($Apache::lonxml::usestyle && |
| |
exists($$style_for_target{$token->[1]})) { |
| |
$Apache::lonxml::usestyle=0; |
| |
my $string=$$style_for_target{$token->[1]}. |
| |
'<LONCAPA_INTERNAL_TURN_STYLE_ON />'; |
| |
&Apache::lonxml::newparser($pars,\$string); |
| |
} else { |
| |
$result = &callsub("start_$token->[1]", $target, $token, $stack, |
| |
$parstack, $pars, $safeeval, $style_for_target); |
| |
} |
| |
} elsif ($token->[0] eq 'E') { |
| |
#clear out any tags that didn't end |
| |
while ($token->[1] ne $$stack['-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 </'.$$stack[-1].'> in file'); |
| |
&end_tag($stack,$parstack,$token); |
| |
} |
| |
} |
| |
|
| |
if ($Apache::lonxml::usestyle && |
| |
exists($$style_for_target{'/'."$token->[1]"})) { |
| |
$Apache::lonxml::usestyle=0; |
| |
my $string=$$style_for_target{'/'.$token->[1]}. |
| |
'<LONCAPA_INTERNAL_TURN_STYLE_ON />'; |
| |
&Apache::lonxml::newparser($pars,\$string); |
| |
} else { |
| |
$result = &callsub("end_$token->[1]", $target, $token, $stack, |
| |
$parstack, $pars,$safeeval, $style_for_target); |
| |
} |
| |
} else { |
| |
&Apache::lonxml::error("Unknown token event :$token->[0]:$token->[1]:"); |
| |
} |
| |
#evaluate variable refs in result |
| |
if ($result ne "") { |
| |
if ( $#$parstack > -1 ) { |
| |
$result=&Apache::run::evaluate($result,$safeeval,$$parstack[-1]); |
| |
} else { |
| |
$result= &Apache::run::evaluate($result,$safeeval,''); |
| |
} |
| |
} |
| |
if (($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') { |
| |
&end_tag($stack,$parstack,$token); |
| |
} |
| |
} |
| |
if ($#$pars > -1) { |
| |
pop @$pars; |
| |
pop @Apache::lonxml::pwd; |
| |
} |
| |
} |
| |
|
| |
# if ($target eq 'meta') { |
| |
# $finaloutput.=&endredirection; |
| |
# } |
| |
|
| |
|
| |
if (($ENV{'QUERY_STRING'}) && ($target eq 'web')) { |
| |
$finaloutput=&afterburn($finaloutput); |
| |
} |
| |
return $finaloutput; |
| |
} |
| |
|
| sub callsub { |
sub callsub { |
| my ($sub,$target,$token,@parstack)=@_; |
my ($sub,$target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; |
| my $currentstring=''; |
my $currentstring=''; |
| |
my $nodefault; |
| { |
{ |
| |
my $sub1; |
| no strict 'refs'; |
no strict 'refs'; |
| if (my $space=$Apache::lonxml::alltags{$token->[1]}) { |
my $tag=$token->[1]; |
| #print "Calling sub $sub in $space \n"; |
# get utterly rid of extended html tags |
| $sub="$space\:\:$sub"; |
if ($tag=~/^x\-/i) { return ''; } |
| $currentstring = &$sub($target,$token,\@parstack); |
my $space=$Apache::lonxml::alltags{$tag}[-1]; |
| } else { |
if (!$space) { |
| #print "NOT Calling sub $sub\n"; |
$tag=~tr/A-Z/a-z/; |
| if (defined($token->[4])) { |
$sub=~tr/A-Z/a-z/; |
| $currentstring = $token->[4]; |
$space=$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 { |
} 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'; |
use strict 'refs'; |
|
Line 162 sub callsub {
|
Line 666 sub callsub {
|
| return $currentstring; |
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; |
| |
$Apache::lonxml::olddepth=-1; |
| |
} |
| |
|
| |
sub increasedepth { |
| |
my ($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("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] : $curdepth\n"; |
| |
} |
| |
|
| |
sub get_all_text_unbalanced { |
| |
#there is a copy of this in lonpublisher.pm |
| |
my($tag,$pars)= @_; |
| |
my $token; |
| |
my $result=''; |
| |
$tag='<'.$tag.'>'; |
| |
while ($token = $$pars[-1]->get_token) { |
| |
if (($token->[0] eq 'T')||($token->[0] eq 'C')||($token->[0] eq 'D')) { |
| |
$result.=$token->[1]; |
| |
} elsif ($token->[0] eq 'PI') { |
| |
$result.=$token->[2]; |
| |
} elsif ($token->[0] eq 'S') { |
| |
$result.=$token->[4]; |
| |
} elsif ($token->[0] eq 'E') { |
| |
$result.=$token->[2]; |
| |
} |
| |
if ($result =~ /(.*)\Q$tag\E(.*)/s) { |
| |
&Apache::lonxml::debug('Got a winner with leftovers ::'.$2); |
| |
&Apache::lonxml::debug('Result is :'.$1); |
| |
$result=$1; |
| |
my $redo=$tag.$2; |
| |
&Apache::lonxml::newparser($pars,\$redo); |
| |
last; |
| |
} |
| |
} |
| |
return $result |
| |
} |
| |
|
| |
sub increment_counter { |
| |
my ($increment) = @_; |
| |
if (defined($increment) && $increment gt 0) { |
| |
$Apache::lonxml::counter+=$increment; |
| |
} else { |
| |
$Apache::lonxml::counter++; |
| |
} |
| |
$Apache::lonxml::counter_changed=1; |
| |
} |
| |
|
| |
sub init_counter { |
| |
if (defined($ENV{'form.counter'})) { |
| |
$Apache::lonxml::counter=$ENV{'form.counter'}; |
| |
$Apache::lonxml::counter_changed=0; |
| |
} else { |
| |
$Apache::lonxml::counter=1; |
| |
$Apache::lonxml::counter_changed=1; |
| |
} |
| |
} |
| |
|
| |
sub store_counter { |
| |
&Apache::lonnet::appenv(('form.counter' => $Apache::lonxml::counter)); |
| |
return ''; |
| |
} |
| |
|
| |
sub get_all_text { |
| |
my($tag,$pars)= @_; |
| |
&Apache::lonxml::debug("Got a ".ref($pars)); |
| |
my $gotfullstack=1; |
| |
if (ref($pars) ne 'ARRAY') { |
| |
$gotfullstack=0; |
| |
$pars=[$pars]; |
| |
} |
| |
my $depth=0; |
| |
my $token; |
| |
my $result=''; |
| |
if ( $tag =~ m:^/: ) { |
| |
my $tag=substr($tag,1); |
| |
#&Apache::lonxml::debug("have:$tag:"); |
| |
my $top_empty=0; |
| |
while (($depth >=0) && ($#$pars > -1) && (!$top_empty)) { |
| |
while (($depth >=0) && ($token = $$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, $dir); |
| |
} |
| |
# &Apache::lonxml::debug("pwd:$#Apache::lonxml::pwd"); |
| |
# &Apache::lonxml::debug("pwd:$Apache::lonxml::pwd[$#Apache::lonxml::pwd]"); |
| |
} |
| |
|
| sub parstring { |
sub parstring { |
| my ($token) = @_; |
my ($token) = @_; |
| my $temp=''; |
my $temp=''; |
| map {$temp .= "my \$$_=\"$token->[2]->{$_}\";"} @{$token->[3]}; |
foreach (@{$token->[3]}) { |
| |
unless ($_=~/\W/) { |
| |
my $val=$token->[2]->{$_}; |
| |
$val =~ s/([\%\@\\\"\'])/\\$1/g; |
| |
#if ($val =~ m/^[\%\@]/) { $val="\\".$val; } |
| |
$temp .= "my \$$_=\"$val\";" |
| |
} |
| |
} |
| return $temp; |
return $temp; |
| } |
} |
| |
|
| |
sub writeallows { |
| |
unless ($#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 = '<table><tr><td>'. |
| |
&Apache::loncommon::help_open_topic("Greek_Symbols",'Greek Symbols', |
| |
undef,undef,600) |
| |
.'</td><td>'. |
| |
&Apache::loncommon::help_open_topic("Other_Symbols",'Other Symbols', |
| |
undef,undef,600) |
| |
.'</td></tr></table>'; |
| |
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> |
| |
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(); |
| |
|
| |
$Apache::lonxml::debug=0; |
| |
|
| |
if ($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); |
| |
} |
| |
} |
| |
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); |
| |
|
| |
# If we're editing, show the filename of the resource in the frame's main |
| |
# title |
| |
if ($ENV{'form.editmode'}) { |
| |
my $filename = $request->uri; |
| |
# Everything after the last / |
| |
$filename = substr($filename, rindex($filename, '/') + 1); |
| |
$result = substr($result, 0, rindex($result, '</html>')); |
| |
$result .= "<script>top.document.title = '$filename - LON-CAPA Construction Space';</script>"; |
| |
$result .= "\n</html>\n"; |
| |
} |
| |
|
| |
|
| |
$request->print($result); |
| |
|
| |
return OK; |
| |
} |
| |
|
| |
sub debug { |
| |
if ($Apache::lonxml::debug eq 1) { |
| |
$|=1; |
| |
print('<font size="-2"<pre>DEBUG:'.&HTML::Entities::encode($_[0])."</pre></font>\n"); |
| |
} |
| |
} |
| |
|
| |
sub error { |
| |
$errorcount++; |
| |
if (($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 { |
| |
$warningcount++; |
| |
if ($ENV{'request.state'} eq 'construct') { |
| |
print "<b>W</b>ARNING<b>:</b>".join('<br />',@_)."<br />\n"; |
| |
} |
| |
} |
| |
|
| |
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, $name that is correct for |
| |
# calls to lonnet functions for this setup. |
| |
# - looks for form.grade_ parameters |
| |
sub whichuser { |
| |
my ($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 { |
| |
$symb=&Apache::lonnet::symbread(); |
| |
$courseid=$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; |
1; |
| __END__ |
__END__ |
| |
|
| |
|
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