--- loncom/homework/structuretags.pm 2001/07/12 12:27:15 1.46 +++ loncom/homework/structuretags.pm 2004/02/16 20:30:34 1.242 @@ -1,24 +1,56 @@ # The LearningOnline Network with CAPA # definition of tags that give a structure to a document +# +# $Id: structuretags.pm,v 1.242 2004/02/16 20:30:34 albertel 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/ +# # 2/19 Guy # 6/26/2001 fixed extra web display at end of tags +# 8/17,8/18,8/20 Gerd Kortemeyer + + package Apache::structuretags; use strict; use Apache::lonnet; - -sub BEGIN { - &Apache::lonxml::register('Apache::structuretags',('block','while','randomlist','problem','web','tex','part','preduedate','postanswerdate','solved','notsolved','startouttext','endouttext')); -# &Apache::lonxml::register_insert('problem','',('part','postanswerdate','preduedate')) +use Apache::File(); +use Apache::lonmenu; +use Apache::lonlocal; +use Apache::lonxml; + +BEGIN { + &Apache::lonxml::register('Apache::structuretags',('block','languageblock','instructorcomment','while','randomlist','problem','library','web','tex','part','preduedate','postanswerdate','solved','notsolved','startouttext','endouttext', +'simpleeditbutton','definetag')); } sub start_web { - my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; - my $bodytext=&Apache::lonxml::get_all_text("/web",$$parser[$#$parser]); - if ($target eq 'web') { - return $bodytext; - } - return ''; + my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; + my $bodytext=&Apache::lonxml::get_all_text("/web",$parser); + if ($target eq 'web') { + return $bodytext; + } + return ''; } sub end_web { @@ -26,393 +58,1202 @@ sub end_web { } sub start_tex { - my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; - my $bodytext=&Apache::lonxml::get_all_text("/tex",$$parser[$#$parser]); - if ($target eq 'tex') { - return $bodytext - } - return ''; + my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; + my $result=''; + my $bodytext=&Apache::lonxml::get_all_text("/tex",$parser); + if ($target eq 'tex') { + return $bodytext.' '; + } + return $result;; } sub end_tex { return ''; } +sub page_start { + my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; + my %found; + foreach my $taginside (@$tagstack) { + foreach my $taglookedfor ('html','body','form') { + if ($taginside =~ /^$taglookedfor$/i) {$found{$taglookedfor} = 1;} + } + } + + my $result; + my $head_tag_start; + if (!defined($found{'html'})) { + $result=&Apache::londefdef::start_html($target,$token,$tagstack, + $parstack,$parser,$safeeval); + $head_tag_start=''.&Apache::lonmenu::registerurl(undef,$target); + } + my $body_tag_start; + if (!defined($found{'body'})) { + $body_tag_start='"; + $body_tag_start.=$help; + } + } + } + my $form_tag_start; + if (!defined($found{'form'})) { + $form_tag_start='
'; + } + return ($result,$head_tag_start,$body_tag_start,$form_tag_start); +} + +#use Time::HiRes(); +sub get_resource_name { + my ($parstack,$safeeval)=@_; + if (defined($Apache::lonhomework::name)) { + return $Apache::lonhomework::name; + } + my $name=&Apache::lonnet::gettitle(); + if ($name eq '') { + $name=&Apache::lonnet::EXT('resource.title'); + if ($name eq 'con_lost') { $name = ''; } + } + if ($name!~/\S+/) { + $name=$ENV{'request.uri'}; + $name=~s-.*/([^/]+)$-$1-; + } + $Apache::lonhomework::name=$name; + return $name; +} + +sub setup_rndseed { + my ($safeeval)=@_; + my $rndseed; + my ($symb)=&Apache::lonxml::whichuser(); + if ($ENV{'request.state'} eq "construct" || $symb eq '') { + $rndseed=$ENV{'form.rndseed'}; + if (!$rndseed) { + $rndseed=$Apache::lonhomework::history{'rndseed'}; + if (!$rndseed) { + $rndseed=time; + } + $ENV{'form.rndseed'}=$rndseed; + } + if ($ENV{'form.resetdata'} eq &mt('New Problem Variation') || + $ENV{'form.newrandomization'} eq &mt('New Randomization')) { + srand(time); + $rndseed=int(rand(2100000000)); + $ENV{'form.rndseed'}=$rndseed; + delete($ENV{'form.resetdata'}); + delete($ENV{'form.newrandomization'}); + } + if (defined($rndseed) && $rndseed ne int($rndseed)) { + $rndseed=join(',',&Math::Random::random_seed_from_phrase($rndseed)); + } + if ($safeeval) { + &Apache::lonxml::debug("Setting rndseed to $rndseed"); + &Apache::run::run('$external::randomseed='.$rndseed.';',$safeeval); + } + } + return $rndseed; +} + +sub problem_edit_header { + return ' + + + +
+ +
'. + &Apache::loncommon::help_open_topic('Problem_Editor_XML_Index', + 'Problem Editing Help').''. + &Apache::loncommon::help_open_faq(5). + &Apache::loncommon::help_open_bug('Authoring').'
'. + '
'; +} + +sub problem_edit_footer { + return '

+ '; +} + +sub option { + my ($value,$name) = @_; + my $result ="