--- loncom/xml/lonxml.pm 2006/04/18 20:50:45 1.408 +++ loncom/xml/lonxml.pm 2013/10/29 21:01:21 1.544 @@ -1,7 +1,7 @@ # The LearningOnline Network with CAPA # XML Parser Module # -# $Id: lonxml.pm,v 1.408 2006/04/18 20:50:45 albertel Exp $ +# $Id: lonxml.pm,v 1.544 2013/10/29 21:01:21 raeburn Exp $ # # Copyright Michigan State University Board of Trustees # @@ -37,11 +37,31 @@ # to any other parties under any circumstances. # +=pod + +=head1 NAME + +Apache::lonxml + +=head1 SYNOPSIS + +XML Parsing Module + +This is part of the LearningOnline Network with CAPA project +described at http://www.lon-capa.org. + + +=head1 SUBROUTINES + +=cut + + package Apache::lonxml; use vars -qw(@pwd @outputstack $redirection $import @extlinks $metamode $evaluate %insertlist @namespace $errorcount $warningcount @htmlareafields); +qw(@pwd @outputstack $redirection $import @extlinks $metamode $evaluate %insertlist @namespace $errorcount $warningcount); use strict; +use LONCAPA; use HTML::LCParser(); use HTML::TreeBuilder(); use HTML::Entities(); @@ -88,10 +108,17 @@ use Apache::loncommon(); use Apache::lonfeedback(); use Apache::lonmsg(); use Apache::loncacc(); +use Apache::lonmaxima(); +use Apache::lonr(); use Apache::lonlocal; +use Apache::lonhtmlcommon(); +use Apache::functionplotresponse(); +use Apache::lonnavmaps(); + +#==================================== Main subroutine: xmlparse -#================================================== 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 @@ -123,8 +150,8 @@ $evaluate = 1; # stores the list of active tag namespaces @namespace=(); -# has the dynamic menu been updated to know about this resource -$Apache::lonxml::registered=0; +# stores all Scrit Vars displays for later showing +my @script_var_displays=(); # a pointer the the Apache request object $Apache::lonxml::request=''; @@ -133,6 +160,16 @@ $Apache::lonxml::request=''; $Apache::lonxml::counter=1; $Apache::lonxml::counter_changed=0; +# Part counter hash. In analysis mode, the +# problems can use this to record which parts increment the counter +# by how much. The counter subs will maintain this hash via +# their optional part parameters. Note that the assumption is that +# analysis is done in one request and therefore it is not necessary to +# save this information request-to-request. + + +%Apache::lonxml::counters_per_part = (); + #internal check on whether to look at style defs $Apache::lonxml::usestyle=1; @@ -162,28 +199,6 @@ sub disable_LaTeX_substitutions { $Apache::lonxml::substitute_LaTeX_symbols = 0; } -sub xmlbegin { - my ($style)=@_; - my $output=''; - @htmlareafields=(); - if ($env{'browser.mathml'}) { - $output='' - #.''."\n" -# .'] >' - .'' - .''; - } else { - $output=''; - } - if ($style eq 'encode') { - $output=&HTML::Entities::encode($output,'<>&"'); - } - return $output; -} - sub xmlend { my ($target,$parser)=@_; my $mode='xml'; @@ -196,8 +211,12 @@ sub xmlend { my $discussion; &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'}, ['LONCAPA_INTERNAL_no_discussion']); - if (! exists($env{'form.LONCAPA_INTERNAL_no_discussion'}) || - $env{'form.LONCAPA_INTERNAL_no_discussion'} ne 'true') { + if ( + ( (!exists($env{'form.LONCAPA_INTERNAL_no_discussion'})) + || ($env{'form.LONCAPA_INTERNAL_no_discussion'} ne 'true') + ) + && ($env{'form.inhibitmenu'} ne 'yes') + ) { $discussion=&Apache::lonfeedback::list_discussion($mode,$status); } if ($target eq 'tex') { @@ -209,101 +228,6 @@ sub xmlend { return $discussion; } -sub tokeninputfield { - my $defhost=$Apache::lonnet::perlvar{'lonHostID'}; - $defhost=~tr/a-z/A-Z/; - return (< - function updatetoken() { - var comp=new Array; - var barcode=unescape(document.tokeninput.barcode.value); - comp=barcode.split('*'); - if (typeof(comp[0])!="undefined") { - document.tokeninput.codeone.value=comp[0]; - } - if (typeof(comp[1])!="undefined") { - document.tokeninput.codetwo.value=comp[1]; - } - if (typeof(comp[2])!="undefined") { - comp[2]=comp[2].toUpperCase(); - document.tokeninput.codethree.value=comp[2]; - } - document.tokeninput.barcode.value=''; - } - -
- - - - -
DocID Checkin
- - - - - - - -
Scan in Barcode
or Type in DocID - -* - -* - -
-
-
-ENDINPUTFIELD -} - -sub maketoken { - my ($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 $plainname=&Apache::loncommon::plainname($tuname,$tudom); - - if ($target eq 'web') { - my %idhash=&Apache::lonnet::idrget($tudom,($tuname)); - return - ''. - &mt('Checked out for').' '.$plainname. - '
'.&mt('User').': '.$tuname.' at '.$tudom. - '
'.&mt('ID').': '.$idhash{$tuname}. - '
'.&mt('CourseID').': '.$tcrsid. - '
'.&mt('Course').': '.$env{'course.'.$tcrsid.'.description'}. - '
'.&mt('DocID').': '.$token. - '
'.&mt('Time').': '.&Apache::lonlocal::locallocaltime().'
'; - } else { - return $token; - } -} - sub printalltags { my $temp; foreach $temp (sort keys %Apache::lonxml::alltags) { @@ -339,13 +263,14 @@ sub xmlparse { } } } - } elsif ($env{'construct.style'} && ($env{'request.state'} eq 'construct')) { + } elsif ($env{'construct.style'} + && ($env{'request.state'} eq 'construct')) { my $location=&Apache::lonnet::filelocation('',$env{'construct.style'}); my $styletext=&Apache::lonnet::getfile($location); - if ($styletext ne '-1') { - %style_for_target = (%style_for_target, - &Apache::style::styleparser($target,$styletext)); - } + if ($styletext ne '-1') { + %style_for_target = (%style_for_target, + &Apache::style::styleparser($target,$styletext)); + } } #&printalltags(); my @pars = (); @@ -367,6 +292,11 @@ sub xmlparse { my $finaloutput = &inner_xmlparse($target,\@stack,\@parstack,\@pars, $safeeval,\%style_for_target,1); + if (@stack) { + &warning(&mt('At end of file some tags were still left unclosed:'). + ' <'.join('>, <',reverse(@stack)). + '>'); + } if ($env{'request.uri'}) { &writeallows($env{'request.uri'}); } @@ -375,7 +305,17 @@ sub xmlparse { &clean_safespace($safeeval); + if (@script_var_displays) { + my $scriptoutput = join('',@script_var_displays); + $finaloutput=~s{(\s*)\s*$}{$scriptoutput$1}s; + undef(@script_var_displays); + } + &init_state(); if ($env{'form.return_only_error_and_warning_counts'}) { + if ($env{'request.filename'}=~/\.(html|htm|xml)$/i) { + my $error=&verify_html($content_file_string); + if ($error) { $errorcount++; } + } return "$errorcount:$warningcount"; } return $finaloutput; @@ -391,13 +331,14 @@ sub latex_special_symbols { return $string; } if ($where eq 'header') { - $string =~ s/(\\|_|\^)/ /g; + $string =~ s/\\/\$\\backslash\$/g; # \ -> $\backslash$ per LaTex line by line pg 10. $string =~ s/(\$|%|\{|\})/\\$1/g; - $string =~ s/_/ /g; $string=&Apache::lonprintout::character_chart($string); # any & or # leftover should be safe to just escape $string=~s/([^\\])\&/$1\\\&/g; $string=~s/([^\\])\#/$1\\\#/g; + $string =~ s/_/\\_/g; # _ -> \_ + $string =~ s/\^/\\\^{}/g; # ^ -> \^{} } else { $string=~s/\\/\\ensuremath{\\backslash}/g; $string=~s/\\\%|\%/\\\%/g; @@ -478,10 +419,10 @@ sub inner_xmlparse { while ($token->[1] ne $$stack['-1'] && ($#$stack > -1)) { my $lasttag=$$stack[-1]; if ($token->[1] =~ /^\Q$lasttag\E$/i) { - &Apache::lonxml::warning('Using tag </'.$token->[1].'> on line '.$token->[3].' as end tag to <'.$$stack[-1].'>'); + &Apache::lonxml::warning(&mt('Using tag [_1] on line [_2] as end tag to [_3]','</'.$token->[1].'>','.$token->[3].','<'.$$stack[-1].'>')); last; } else { - &Apache::lonxml::warning('Found tag </'.$token->[1].'> on line '.$token->[3].' when looking for </'.$$stack[-1].'> in file'); + &Apache::lonxml::warning(&mt('Found tag [_1] on line [_2] when looking for [_3] in file.','</'.$token->[1].'>',$token->[3],'</'.$$stack[-1].'>')); &end_tag($stack,$parstack,$token); } } @@ -497,11 +438,11 @@ sub inner_xmlparse { if (!$Apache::lonxml::usestyle) { $extras=$Apache::lonxml::style_values; } - if ( $#$parstack > -1 ) { - $result=&Apache::run::evaluate($result,$safeeval,$extras.$$parstack[-1]); - } else { - $result= &Apache::run::evaluate($result,$safeeval,$extras); - } + if ( $#$parstack > -1 ) { + $result=&Apache::run::evaluate($result,$safeeval,$extras.$$parstack[-1]); + } else { + $result= &Apache::run::evaluate($result,$safeeval,$extras); + } } $Apache::lonxml::post_evaluate=1; @@ -542,6 +483,10 @@ sub inner_xmlparse { } if (($ENV{'QUERY_STRING'}) && ($target eq 'web')) { $finaloutput=&afterburn($finaloutput); + } + if ($target eq 'modified') { +# if modfied, handle startpart and endpart + $finaloutput=~s/\]*\>(.*)\]*\>/$1<\/part>/gs; } return $finaloutput; } @@ -568,7 +513,6 @@ sub callsub { } 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,$safeeval, @@ -604,17 +548,23 @@ sub callsub { } elsif ($token->[0] eq 'E') { $currentstring = &Apache::edit::tag_end($target,$token); } - } elsif ($target eq 'modified') { + } + } + if ($target eq 'modified' && $nodefault eq '') { + if ($currentstring eq '') { + if ($token->[0] eq 'S') { + $currentstring = $token->[4]; + } elsif ($token->[0] eq 'E') { + $currentstring = $token->[2]; + } else { + $currentstring = $token->[2]; + } + } if ($token->[0] eq 'S') { - $currentstring = $token->[4]; - $currentstring.=&Apache::edit::handle_insert(); + $currentstring.=&Apache::edit::handle_insert(); } elsif ($token->[0] eq 'E') { - $currentstring = $token->[2]; - $currentstring.=&Apache::edit::handle_insertafter($token->[1]); - } else { - $currentstring = $token->[2]; + $currentstring.=&Apache::edit::handle_insertafter($token->[1]); } - } } } use strict 'refs'; @@ -622,18 +572,39 @@ sub callsub { return $currentstring; } +{ + my %state; + + sub init_state { + undef(%state); + } + + sub set_state { + my ($key,$value) = @_; + $state{$key} = $value; + return $value; + } + sub get_state { + my ($key) = @_; + return $state{$key}; + } +} + sub setup_globals { my ($request,$target)=@_; $Apache::lonxml::request=$request; - $Apache::lonxml::registered = 0; - @Apache::lonxml::htmlareafields=(); $errorcount=0; $warningcount=0; + $Apache::lonxml::internal_error=0; $Apache::lonxml::default_homework_loaded=0; $Apache::lonxml::usestyle=1; &init_counter(); + &clear_bubble_lines_for_part(); + &init_state(); + &set_state('target',$target); @Apache::lonxml::pwd=(); @Apache::lonxml::extlinks=(); + @script_var_displays=(); @Apache::lonxml::ssi_info=(); $Apache::lonxml::post_evaluate=1; $Apache::lonxml::warnings_error_header=''; @@ -678,13 +649,15 @@ sub setup_globals { sub init_safespace { my ($target,$safeeval,$safehole,$safeinit) = @_; + $safeeval->reval('use LaTeX::Table;'); $safeeval->deny_only(':dangerous'); - $safeeval->reval('use Math::Complex;'); + $safeeval->reval('use LONCAPA::LCMathComplex;'); $safeeval->permit_only(":default"); $safeeval->permit("entereval"); $safeeval->permit(":base_math"); $safeeval->permit("sort"); $safeeval->permit("time"); + $safeeval->permit("caller"); $safeeval->deny("rand"); $safeeval->deny("srand"); $safeeval->deny(":base_io"); @@ -694,6 +667,25 @@ sub init_safespace { $safehole->wrap(\&Apache::chemresponse::chem_standard_order,$safeeval, '&chem_standard_order'); $safehole->wrap(\&Apache::response::check_status,$safeeval,'&check_status'); + $safehole->wrap(\&Apache::response::implicit_multiplication,$safeeval,'&implicit_multiplication'); + + $safehole->wrap(\&Apache::lonmaxima::maxima_eval,$safeeval,'&maxima_eval'); + $safehole->wrap(\&Apache::lonmaxima::maxima_check,$safeeval,'&maxima_check'); + $safehole->wrap(\&Apache::lonmaxima::maxima_cas_formula_fix,$safeeval, + '&maxima_cas_formula_fix'); + + $safehole->wrap(\&Apache::lonr::r_eval,$safeeval,'&r_eval'); + $safehole->wrap(\&Apache::lonr::Rentry,$safeeval,'&Rentry'); + $safehole->wrap(\&Apache::lonr::Rarray,$safeeval,'&Rarray'); + $safehole->wrap(\&Apache::lonr::r_check,$safeeval,'&r_check'); + $safehole->wrap(\&Apache::lonr::r_cas_formula_fix,$safeeval, + '&r_cas_formula_fix'); + + $safehole->wrap(\&Apache::caparesponse::capa_formula_fix,$safeeval, + '&capa_formula_fix'); + + $safehole->wrap(\&Apache::lonlocal::locallocaltime,$safeeval, + '&locallocaltime'); $safehole->wrap(\&Math::Cephes::asin,$safeeval,'&asin'); $safehole->wrap(\&Math::Cephes::acos,$safeeval,'&acos'); @@ -796,10 +788,23 @@ sub init_safespace { $safehole->wrap(\&Math::Random::random_set_seed_from_phrase,$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'); + $safehole->wrap(\&Apache::loncommon::languages,$safeeval,'&languages'); $safehole->wrap(\&Apache::lonxml::error,$safeeval,'&LONCAPA_INTERNAL_ERROR'); $safehole->wrap(\&Apache::lonxml::debug,$safeeval,'&LONCAPA_INTERNAL_DEBUG'); + $safehole->wrap(\&Apache::lonnet::logthis,$safeeval,'&LONCAPA_INTERNAL_LOGTHIS'); + $safehole->wrap(\&Apache::inputtags::finalizeawards,$safeeval,'&LONCAPA_INTERNAL_FINALIZEAWARDS'); $safehole->wrap(\&Apache::caparesponse::get_sigrange,$safeeval,'&LONCAPA_INTERNAL_get_sigrange'); + $safehole->wrap(\&Apache::functionplotresponse::fpr_val,$safeeval,'&fpr_val'); + $safehole->wrap(\&Apache::functionplotresponse::fpr_f,$safeeval,'&fpr_f'); + $safehole->wrap(\&Apache::functionplotresponse::fpr_dfdx,$safeeval,'&fpr_dfdx'); + $safehole->wrap(\&Apache::functionplotresponse::fpr_d2fdx2,$safeeval,'&fpr_d2fdx2'); + $safehole->wrap(\&Apache::functionplotresponse::fpr_vectorcoords,$safeeval,'&fpr_vectorcoords'); + $safehole->wrap(\&Apache::functionplotresponse::fpr_objectcoords,$safeeval,'&fpr_objectcoords'); + $safehole->wrap(\&Apache::functionplotresponse::fpr_vectorlength,$safeeval,'&fpr_vectorlength'); + $safehole->wrap(\&Apache::functionplotresponse::fpr_vectorangle,$safeeval,'&fpr_vectorangle'); +# use Data::Dumper; +# $safehole->wrap(\&Data::Dumper::Dumper,$safeeval,'&LONCAPA_INTERNAL_Dumper'); #need to inspect this class of ops # $safeeval->deny(":base_orig"); $safeeval->permit("require"); @@ -839,7 +844,7 @@ sub delete_package_recurse { sub initialize_rndseed { my ($safeeval)=@_; my $rndseed; - my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser(); + my ($symb,$courseid,$domain,$name) = &Apache::lonnet::whichuser(); $rndseed=&Apache::lonnet::rndseed($symb,$courseid,$domain,$name); my $safeinit = '$external::randomseed="'.$rndseed.'";'; &Apache::lonxml::debug("Setting rndseed to $rndseed"); @@ -849,7 +854,8 @@ sub initialize_rndseed { sub default_homework_load { my ($safeeval)=@_; &Apache::lonxml::debug('Loading default_homework'); - my $default=&Apache::lonnet::getfile('/home/httpd/html/res/adm/includes/default_homework.lcpm'); + my $default=&Apache::lonnet::getfile($Apache::lonnet::perlvar{'lonIncludes'}. + '/default_homework.lcpm'); if ($default eq -1) { &Apache::lonxml::error("Unable to find default_homework.lcpm"); } else { @@ -901,6 +907,9 @@ sub endredirection { } pop @Apache::lonxml::outputstack; } +sub in_redirection { + return ($Apache::lonxml::redirection > 0) +} sub end_tag { my ($tagstack,$parstack,$token)=@_; @@ -911,59 +920,58 @@ sub end_tag { sub initdepth { @Apache::lonxml::depthcounter=(); - $Apache::lonxml::depth=-1; - $Apache::lonxml::olddepth=-1; + undef($Apache::lonxml::last_depth_count); } + my @timers; my $lasttime; +# @Apache::lonxml::depthcounter -> count of tags that exist so +# far at each level +# $Apache::lonxml::last_depth_count -> when ascending, need to +# remember the count for the level below the current level (for +# example going from 1_2 -> 1 -> 1_3 need to remember the 2 ) + sub increasedepth { my ($token) = @_; - $Apache::lonxml::depth++; - $Apache::lonxml::depthcounter[$Apache::lonxml::depth]++; - if ($Apache::lonxml::depthcounter[$Apache::lonxml::depth]==1) { - $Apache::lonxml::olddepth=$Apache::lonxml::depth; - } + push(@Apache::lonxml::depthcounter,$Apache::lonxml::last_depth_count+1); + undef($Apache::lonxml::last_depth_count); my $time; if ($Apache::lonxml::debug eq "1") { push(@timers,[&gettimeofday()]); $time=&tv_interval($lasttime); $lasttime=[&gettimeofday()]; } - my $spacing=' 'x($Apache::lonxml::depth-1); - my $curdepth=join('_',@Apache::lonxml::depthcounter); - &Apache::lonxml::debug("s$spacing$Apache::lonxml::depth : $Apache::lonxml::olddepth : $curdepth : $token->[1] : $time : \n"); + my $spacing=' 'x($#Apache::lonxml::depthcounter); + $Apache::lonxml::curdepth=join('_',@Apache::lonxml::depthcounter); +# &Apache::lonxml::debug("s$spacing$Apache::lonxml::depth : $Apache::lonxml::olddepth : $Apache::lonxml::curdepth : $token->[1] : $time"); #print "
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(&mt("Missing tags, unable to properly run file.")); - $Apache::lonxml::depth='-1'; + if ( $#Apache::lonxml::depthcounter == -1) { + &Apache::lonxml::warning(&mt("Missing tags, unable to properly run file.")); } + $Apache::lonxml::last_depth_count = pop(@Apache::lonxml::depthcounter); + my ($timer,$time); if ($Apache::lonxml::debug eq "1") { $timer=pop(@timers); $time=&tv_interval($lasttime); $lasttime=[&gettimeofday()]; } - my $spacing=' 'x$Apache::lonxml::depth; - my $curdepth=join('_',@Apache::lonxml::depthcounter); - &Apache::lonxml::debug("e$spacing$Apache::lonxml::depth : $Apache::lonxml::olddepth : $curdepth : $token->[1] : $time : ".&tv_interval($timer)."\n"); + my $spacing=' 'x($#Apache::lonxml::depthcounter); + $Apache::lonxml::curdepth = join('_',@Apache::lonxml::depthcounter); +# &Apache::lonxml::debug("e$spacing$Apache::lonxml::depth : $Apache::lonxml::olddepth : $Apache::lonxml::curdepth : $token->[1] : $time : ".&tv_interval($timer)); #print "
e $Apache::lonxml::depth : $Apache::lonxml::olddepth : $token->[1] : $curdepth\n"; } sub get_id { my ($parstack,$safeeval)=@_; my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval); - if ($env{'request.state'} eq 'construct' && $id =~ /(\.|_)/) { - &error(&mt("IDs are not allowed to contain "_" or "."")); + if ($env{'request.state'} eq 'construct' && $id =~ /([._]|[^\w\d\s[:punct:]])/) { + &error(&mt('ID [_1] contains invalid characters. IDs are only allowed to contain letters, numbers, spaces and -','"'.$id.'"')); } if ($id =~ /^\s*$/) { $id = $Apache::lonxml::curdepth; } return $id; @@ -999,18 +1007,67 @@ sub get_all_text_unbalanced { } } return $result + } +######################################################################### +# # +# bubble line counter management # +# # +######################################################################### + +=pod + +For bubble grading mode and exam bubble printing mode, the tracking of +the current 'bubble line number' is stored in the %env element +'form.counter', and is modifed and handled by the following routines. + +The value of it is stored in $Apache:lonxml::counter when live and +stored back to env after done. + +=item &increment_counter($increment, $part_response); + +Increments the internal counter environment variable a specified amount + +Optional Arguments: + $increment - amount to increment by (defaults to 1) + Also 1 if the value is negative or zero. + $part_response - A concatenation of the part and response id + identifying exactly what is being 'answered'. + + +=cut + sub increment_counter { - my ($increment) = @_; - if (defined($increment) && $increment gt 0) { - $Apache::lonxml::counter+=$increment; - } else { - $Apache::lonxml::counter++; + my ($increment, $part_response) = @_; + if ($env{'form.grade_noincrement'}) { return; } + if (!defined($increment) || $increment le 0) { + $increment = 1; + } + $Apache::lonxml::counter += $increment; + + # If the caller supplied the response_id parameter, + # Maintain its counter.. creating if necessary. + + if (defined($part_response)) { + if (!defined($Apache::lonxml::counters_per_part{$part_response})) { + $Apache::lonxml::counters_per_part{$part_response} = 0; + } + $Apache::lonxml::counters_per_part{$part_response} += $increment; + my $new_value = $Apache::lonxml::counters_per_part{$part_response}; } + $Apache::lonxml::counter_changed=1; } +=pod + +=item &init_counter($increment); + +Initialize the internal counter environment variable + +=cut + sub init_counter { if ($env{'request.state'} eq 'construct') { $Apache::lonxml::counter=1; @@ -1025,7 +1082,7 @@ sub init_counter { } sub store_counter { - &Apache::lonnet::appenv(('form.counter' => $Apache::lonxml::counter)); + &Apache::lonnet::appenv({'form.counter' => $Apache::lonxml::counter}); $Apache::lonxml::counter_changed=0; return ''; } @@ -1040,22 +1097,89 @@ sub store_counter { } sub remember_problem_counter { - &Apache::lonnet::transfer_profile_to_env(); + &Apache::lonnet::transfer_profile_to_env(undef,undef,1); $state = $env{'form.counter'}; } sub restore_problem_counter { if (defined($state)) { - &Apache::lonnet::appenv(('form.counter' => $state)); + &Apache::lonnet::appenv({'form.counter' => $state}); } } sub get_problem_counter { if ($Apache::lonxml::counter_changed) { &store_counter() } - &Apache::lonnet::transfer_profile_to_env(); + &Apache::lonnet::transfer_profile_to_env(undef,undef,1); return $env{'form.counter'}; } } +=pod + +=item bubble_lines_for_part(part_response) + +Returns the number of lines required to get a response for +$part_response (this is just $Apache::lonxml::counters_per_part{$part_response} + +=cut + +sub bubble_lines_for_part { + my ($part_response) = @_; + + if (!defined($Apache::lonxml::counters_per_part{$part_response})) { + return 0; + } else { + return $Apache::lonxml::counters_per_part{$part_response}; + } +} + +=pod + +=item clear_bubble_lines_for_part + +Clears the hash of bubble lines per part. If a caller +needs to analyze several resources this should be called between +resources to reset the hash for each problem being analyzed. + +=cut + +sub clear_bubble_lines_for_part { + undef(%Apache::lonxml::counters_per_part); +} + +=pod + +=item set_bubble_lines(part_response, value) + +If there is a problem part, that for whatever reason +requires bubble lines that are not +the same as the counter increment, it can call this sub during +analysis to set its hash value explicitly. + +=cut + +sub set_bubble_lines { + my ($part_response, $value) = @_; + + $Apache::lonxml::counters_per_part{$part_response} = $value; +} + +=pod + +=item get_bubble_line_hash + +Returns the current bubble line hash. This is assumed to +be small so we return a copy + + +=cut + +sub get_bubble_line_hash { + return %Apache::lonxml::counters_per_part; +} + + +#-------------------------------------------------- + sub get_all_text { my($tag,$pars,$style)= @_; my $gotfullstack=1; @@ -1175,19 +1299,23 @@ sub newparser { } sub parstring { - my ($token) = @_; - my $temp=''; - foreach (@{$token->[3]}) { - unless ($_=~/\W/) { - my $val=$token->[2]->{$_}; - $val =~ s/([\%\@\\\"\'])/\\$1/g; - $val =~ s/(\$[^{a-zA-Z_])/\\$1/g; - $val =~ s/(\$)$/\\$1/; - #if ($val =~ m/^[\%\@]/) { $val="\\".$val; } - $temp .= "my \$$_=\"$val\";"; - } - } - return $temp; + my ($token) = @_; + my (@vars,@values); + foreach my $attr (@{$token->[3]}) { + if ($attr!~/\W/) { + my $val=$token->[2]->{$attr}; + $val =~ s/([\%\@\\\"\'])/\\$1/g; + $val =~ s/(\$[^\{a-zA-Z_])/\\$1/g; + $val =~ s/(\$)$/\\$1/; + #if ($val =~ m/^[\%\@]/) { $val="\\".$val; } + push(@vars,"\$$attr"); + push(@values,"\"$val\""); + } + } + my $var_init = + (@vars) ? 'my ('.join(',',@vars).') = ('.join(',',@values).');' + : ''; + return $var_init; } sub extlink { @@ -1209,10 +1337,10 @@ sub writeallows { my %httpref=(); foreach (@extlinks) { $httpref{'httpref.'. - &Apache::lonnet::hreflocation($thisdir,$_)}=$thisurl; + &Apache::lonnet::hreflocation($thisdir,&unescape($_))}=$thisurl; } @extlinks=(); - &Apache::lonnet::appenv(%httpref); + &Apache::lonnet::appenv(\%httpref); } sub register_ssi { @@ -1228,6 +1356,12 @@ sub do_registered_ssi { &Apache::lonnet::ssi($url,%form); } } + +sub add_script_result { + my ($display) = @_; + push(@script_var_displays, $display); +} + # # Afterburner handles anchors, highlights and links # @@ -1273,7 +1407,7 @@ sub storefile { $fh->close(); return 1; } else { - &warning("Unable to save file $file"); + &warning(&mt('Unable to save file [_1]',''.$file.'')); return 0; } } @@ -1306,75 +1440,188 @@ SIMPLECONTENT return $filecontents; } +sub createnewjs { + my $filecontents=(< + + +SIMPLECONTENT + return $filecontents; +} + +sub verify_html { + my ($filecontents)=@_; + my ($is_html,$is_xml); + if ($filecontents =~/(?:\<|\<\;)\?xml[^\<]*\?(?:\>|\>\;)/is) { + $is_xml = 1; + } elsif ($filecontents =~/(?:\<|\<\;)html(?:\s+[^\<]+|\s*)(?:\>|\>\;)/is) { + $is_html = 1; + } + unless ($is_xml || $is_html) { + return &mt('File does not have [_1] or [_2] starting tag','<html>','<?xml ?>'); + } + if ($is_html) { + if ($filecontents!~/(?:\<|\<\;)\/html(?:\>|\>\;)/is) { + return &mt('File does not have [_1] ending tag','<html>'); + } + if ($filecontents!~/(?:\<|\<\;)(?:body|frameset)[^\<]*(?:\>|\>\;)/is) { + return &mt('File does not have [_1] or [_2] starting tag','<body>','<frameset>'); + } + if ($filecontents!~/(?:\<|\<\;)\/(?:body|frameset)[^\<]*(?:\>|\>\;)/is) { + return &mt('File does not have [_1] or [_2] ending tag','<body>','<frameset>'); + } + } + return ''; +} + +sub renderingoptions { + my %langchoices=('' => ''); + foreach (&Apache::loncommon::languageids()) { + if (&Apache::loncommon::supportedlanguagecode($_)) { + $langchoices{&Apache::loncommon::supportedlanguagecode($_)} + = &Apache::loncommon::plainlanguagedescription($_); + } + } + my $output; + unless ($env{'form.forceedit'}) { + $output .= + ''. + &mt('Language:').' '. + &Apache::loncommon::select_form( + $env{'form.languages'}, + 'languages', + {&Apache::lonlocal::texthash(%langchoices)}). + ''; + } + $output .= + ' '. + &mt('Math Rendering:').' '. + &Apache::loncommon::select_form( + $env{'form.texengine'}, + 'texengine', + {&Apache::lonlocal::texthash + ('' => '', + 'tth' => 'tth (TeX to HTML)', + 'MathJax' => 'MathJax', + 'jsMath' => 'jsMath', + 'mimetex' => 'mimetex (Convert to Images)')}). + ''; + return $output; +} sub inserteditinfo { - my ($result,$filecontents,$filetype)=@_; + my ($filecontents,$filetype,$filename,$symb,$itemtitle,$folderpath,$uri,$action) = @_; $filecontents = &HTML::Entities::encode($filecontents,'<>&"'); -# my $editheader='Edit below
'; my $xml_help = ''; my $initialize=''; - if ($filetype eq 'html') { - my $addbuttons=&Apache::lonhtmlcommon::htmlareaaddbuttons(); - $initialize=&Apache::lonhtmlcommon::htmlareaheaders(). - &Apache::lonhtmlcommon::spellheader(); - if (!&Apache::lonhtmlcommon::htmlareablocked() && - &Apache::lonhtmlcommon::htmlareabrowser()) { - $initialize.=(< -$addbuttons - - HTMLArea.loadPlugin("FullPage"); - - function initDocument() { - var editor=new HTMLArea("filecont",config); - editor.registerPlugin(FullPage); - editor.generate(); - } - -FULLPAGE - } else { - $initialize.=(< 'true', + dragmath => 'math', + ); + $initialize .= &Apache::lonhtmlcommon::htmlareaselectactive(\%textarea_args); + } + $initialize .= (< -$addbuttons +// FULLPAGE - } - $result=~s/\]*)\>/\/i; + my $textareaclass; + if ($filetype eq 'html') { + my $context; + if ($env{'request.course.id'}) { + my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'}; + my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'}; + if ($uri =~ m{^\Q/uploaded/$cdom/$cnum/portfolio/syllabus/\E}) { + $context = 'syllabus'; + $deps_button = &Apache::lonhtmlcommon::dependencies_button()."\n"; + $initialize .= + &Apache::lonhtmlcommon::dependencycheck_js(undef,&mt('Syllabus'), + $uri,undef, + "/public/$cdom/$cnum/syllabus"). + "\n"; + if (&Apache::lonhtmlcommon::htmlareabrowser()) { + $textareaclass = 'class="LC_richDefaultOn"'; + } + } + } + unless ($context eq 'syllabus') { + if ($symb || $folderpath) { + $deps_button = &Apache::lonhtmlcommon::dependencies_button()."\n"; + $initialize .= + &Apache::lonhtmlcommon::dependencycheck_js($symb,$itemtitle, + undef,$folderpath,$uri)."\n"; + } + } + $dragmath_button = ''.&Apache::lonhtmlcommon::dragmath_button('filecont',1).''; + $initialize .= "\n".&Apache::lonhtmlcommon::dragmath_js('EditMathPopup'); + } + $add_to_onload = 'initDocument();'; + $add_to_onresize = "resize_textarea('$textarea_id','LC_aftertextarea');"; + + if ($filetype eq 'html') { $xml_help=&Apache::loncommon::helpLatexCheatsheet(); } - my $cleanbut = ''; my $titledisplay=&display_title(); - my %lt=&Apache::lonlocal::texthash('st' => 'Save this', - 'vi' => 'View', + my %lt=&Apache::lonlocal::texthash('st' => 'Save and Edit', + 'vi' => 'Save and View', + 'dv' => 'Discard Edits and View', + 'un' => 'undo', 'ed' => 'Edit'); - my $buttons=(< - -BUTTONS - $buttons.=&Apache::lonhtmlcommon::spelllink('xmledit','filecont'); - $buttons.=&Apache::lonhtmlcommon::htmlareaselectactive('filecont'); + my $spelllink = &Apache::lonhtmlcommon::spelllink('xmledit','filecont'); + my $textarea_events = &Apache::edit::element_change_detection(); + my $form_events = &Apache::edit::form_change_detection(); + my $htmlerror; + if ($filetype eq 'html') { + $htmlerror=&verify_html($filecontents); + if ($htmlerror) { + $htmlerror=''.$htmlerror.''; + } + if (&Apache::lonhtmlcommon::htmlareabrowser()) { + unless ($textareaclass) { + $textareaclass = 'class="LC_richDefaultOff"'; + } + } + } my $editfooter=(< -
-$xml_help - -$buttons
- -
$buttons -
+ +
+ +
+ $filename + + $xml_help +
+
+ + + $htmlerror $deps_button $dragmath_button +
+
+ + +
+
+
$spelllink +
+
+ $titledisplay +
-$titledisplay - ENDFOOTER -# $result=~s/(\]*\>)/$1$editheader/is; - $result=~s/(\<\/body\>)/$editfooter/is; - return $result; + return ($editfooter,$add_to_onload,$add_to_onresize);; } sub get_target { @@ -1406,9 +1653,8 @@ sub get_target { sub handler { my $request=shift; - + my $target=&get_target(); - $Apache::lonxml::debug=$env{'user.debug'}; &Apache::loncommon::content_type($request,'text/html'); @@ -1417,29 +1663,75 @@ sub handler { $request->set_last_modified(&Apache::lonnet::metadata($request->uri, 'lastrevisiondate')); } + # Embedded Flash movies from Camtasia served from https will not display in IE + # if XML config file has expired from cache. + if ($ENV{'SERVER_PORT'} == 443) { + if ($request->uri =~ /\.xml$/) { + my ($httpbrowser,$clientbrowser) = + &Apache::loncommon::decode_user_agent($request); + if ($clientbrowser =~ /^explorer$/i) { + delete $request->headers_out->{'Cache-control'}; + delete $request->headers_out->{'Pragma'}; + my $expiration = time + 60; + my $date=strftime("%a, %d %b %Y %H:%M:%S GMT",gmtime($expiration)); + $request->headers_out->set("Expires" => $date); + } + } + } $request->send_http_header; return OK if $request->header_only; my $file=&Apache::lonnet::filelocation("",$request->uri); - my $filetype; - if ($file =~ /\.sty$/) { - $filetype='sty'; + my ($filetype,$breadcrumbtext); + if ($file =~ /\.(sty|css|js|txt|tex)$/) { + $filetype=$1; } else { $filetype='html'; } + unless ($env{'request.uri'}) { + $env{'request.uri'}=$request->uri; + &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'}, + ['todocs']); + } + my ($cdom,$cnum); + if ($env{'request.course.id'}) { + $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'}; + $cnum = $env{'course.'.$env{'request.course.id'}.'.num'}; + if ($filetype eq 'html') { + if ($request->uri =~ m{^\Q/uploaded/$cdom/$cnum/portfolio/syllabus/\E.+$}) { + if (&Apache::lonnet::allowed('mdc',$env{'request.course.id'})) { + &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'}, + ['editmode']); + } + } + } + } + if ($filetype eq 'sty') { + $breadcrumbtext = 'Style File Editor'; + } elsif ($filetype eq 'js') { + $breadcrumbtext = 'Javascript Editor'; + } elsif ($filetype eq 'css') { + $breadcrumbtext = 'CSS Editor'; + } elsif ($filetype eq 'txt') { + $breadcrumbtext = 'Text Editor'; + } elsif ($filetype eq 'tex') { + $breadcrumbtext = 'TeX Editor'; + } else { + $breadcrumbtext = 'HTML Editor'; + } + # # Edit action? Save file. # - unless ($env{'request.state'} eq 'published') { - if ($env{'form.savethisfile'}) { - if (&storefile($file,$env{'form.filecont'})) { - &Apache::lonxml::info("". - &mt('Updated').": ". - &Apache::lonlocal::locallocaltime(time). - " "); - } + if (!($env{'request.state'} eq 'published')) { + if ($env{'form.savethisfile'} || $env{'form.viewmode'} || $env{'form.Undo'}) { + my $html_file=&Apache::lonnet::getfile($file); + my $error = &Apache::lonhomework::handle_save_or_undo($request, \$html_file, \$env{'form.filecont'}); + if ($env{'form.savethisfile'}) { + $env{'form.editmode'}='Edit'; #force edit mode + } } } my %mystyle; @@ -1447,18 +1739,23 @@ sub handler { my $filecontents=&Apache::lonnet::getfile($file); if ($filecontents eq -1) { my $start_page=&Apache::loncommon::start_page('File Error'); - my $end_page=&Apache::loncommon::end_page('File Error'); - my $fnf=&mt('File not found'); + my $end_page=&Apache::loncommon::end_page(); + my $errormsg='

' + .&mt('File not found: [_1]' + ,''.$file.'') + .'

'; $result=(<$fnf: $file +$errormsg $end_page ENDNOTFOUND $filecontents=''; if ($env{'request.state'} ne 'published') { if ($filetype eq 'sty') { $filecontents=&createnewsty(); - } else { + } elsif ($filetype eq 'js') { + $filecontents=&createnewjs(); + } elsif ($filetype ne 'css' && $filetype ne 'txt' && $filetype ne 'tex') { $filecontents=&createnewhtml(); } $env{'form.editmode'}='Edit'; #force edit mode @@ -1473,39 +1770,129 @@ ENDNOTFOUND &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'}, ['editmode']); } - if (!$env{'form.editmode'} || $env{'form.viewmode'}) { - $result = &Apache::lonxml::xmlparse($request,$target,$filecontents, - '',%mystyle); - undef($Apache::lonhomework::parsing_a_task); + if (!$env{'form.editmode'} || $env{'form.viewmode'} || $env{'form.discardview'}) { + if ($filetype eq 'html' || $filetype eq 'sty') { + &Apache::structuretags::reset_problem_globals(); + $result = &Apache::lonxml::xmlparse($request,$target, + $filecontents,'',%mystyle); + # .html files may contain or need to clean + # up if it did + &Apache::structuretags::reset_problem_globals(); + &Apache::lonhomework::finished_parsing(); + } elsif ($filetype eq 'tex') { + $result = &Apache::lontexconvert::converted(\$filecontents, + $env{'form.texengine'}); + if ($env{'form.return_only_error_and_warning_counts'}) { + $result = "$errorcount:$warningcount"; + } + } else { + $result = $filecontents; + } &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'}, ['rawmode']); if ($env{'form.rawmode'}) { $result = $filecontents; } - } + if (($filetype ne 'html') && + (!$env{'form.return_only_error_and_warning_counts'})) { + my $nochgview = 1; + my $controls = ''; + if ($env{'request.state'} eq 'construct') { + $controls = &Apache::loncommon::head_subbox( + &Apache::loncommon::CSTR_pageheader() + .&Apache::londefdef::edit_controls($nochgview)); + } + if ($filetype ne 'sty' && $filetype ne 'tex') { + $result =~ s//>/g; + $result = ''. + '
'.$result.
+                              '
'; + } + my $brcrum; + if ($env{'request.state'} eq 'construct') { + $brcrum = [{'href' => &Apache::loncommon::authorspace($request->uri), + 'text' => 'Authoring Space'}, + {'href' => '', + 'text' => $breadcrumbtext}]; + } else { + $brcrum = ''; # FIXME: Where are we? + } + my %options = ('bread_crumbs' => $brcrum, + 'bgcolor' => '#FFFFFF'); + $result = + &Apache::loncommon::start_page(undef,undef,\%options) + .$controls + .$result + .&Apache::loncommon::end_page(); + } + } } - + # # Edit action? Insert editing commands # unless ($env{'request.state'} eq 'published') { - if ($env{'form.editmode'} && (!($env{'form.viewmode'}))) { - my $displayfile=$request->uri; - $displayfile=~s/^\/[^\/]*//; - my %options = (); - if ($env{'environment.remote'} ne 'off') { - $options{'bgcolor'} = '#FFFFFF'; - } - my $start_page = &Apache::loncommon::start_page(undef,undef, + if ($env{'form.editmode'} && (!($env{'form.viewmode'})) && (!($env{'form.discardview'}))) + { + my ($displayfile,$url,$symb,$itemtitle,$action); + $displayfile=$request->uri; + if ($request->uri =~ m{^/uploaded/}) { + if ($env{'request.course.id'}) { + if ($request->uri =~ m{^\Q/uploaded/$cdom/$cnum/supplemental/\E}) { + &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'}, + ['folderpath','title']); + } elsif ($request->uri =~ m{^\Q/uploaded/$cdom/$cnum/portfolio/syllabus/\E(.+)$}) { + my $filename = $1; + if ($1 eq 'loncapa.html') { + $displayfile = &mt('Syllabus (minimal template)'); + $action = $request->uri.'?forceedit=1'; + } else { + $displayfile = &mt('Syllabus file: [_1]',$1); + } + $itemtitle = &mt('Syllabus'); + } + } + unless ($itemtitle) { + ($symb,$itemtitle,$displayfile) = + &get_courseupload_hierarchy($request->uri, + $env{'form.folderpath'}, + $env{'form.title'}); + } + } else { + $displayfile=~s/^\/[^\/]*//; + } + + my ($edit_info, $add_to_onload, $add_to_onresize)= + &inserteditinfo($filecontents,$filetype,$displayfile,$symb, + $itemtitle,$env{'form.folderpath'},$request->uri,$action); + + my %options = + ('add_entries' => + {'onresize' => $add_to_onresize, + 'onload' => $add_to_onload, }); + my $header; + if ($env{'request.state'} eq 'construct') { + $options{'bread_crumbs'} = [{ + 'href' => &Apache::loncommon::authorspace($request->uri), + 'text' => 'Authoring Space'}, + {'href' => '', + 'text' => $breadcrumbtext}]; + $header = &Apache::loncommon::head_subbox( + &Apache::loncommon::CSTR_pageheader()); + } + my $js = + &Apache::edit::js_change_detection(). + &Apache::loncommon::resize_textarea_js(); + my $start_page = &Apache::loncommon::start_page(undef,$js, \%options); - $result=$start_page. - &Apache::lonxml::message_location().'

'. - $displayfile. - '

'.&Apache::loncommon::end_page(); - $result=&inserteditinfo($result,$filecontents,$filetype); - } + $result = $start_page + .$header + .&Apache::lonxml::message_location() + .$edit_info + .&Apache::loncommon::end_page(); + } } if ($filetype eq 'html') { &writeallows($request->uri); } - - + &Apache::lonxml::add_messages(\$result); $request->print($result); @@ -1520,11 +1907,48 @@ sub display_title { $title = $env{'request.filename'}; $title = substr($title, rindex($title, '/') + 1); } - $result = ""; + $result = ""; } return $result; } +sub get_courseupload_hierarchy { + my ($url,$folderpath,$title) = @_; + my ($symb,$itemtitle,$displaypath); + if ($env{'request.course.id'}) { + if ($folderpath =~ /^supplemental/) { + my @folders = split(/\&/,$folderpath); + my @pathitems; + while (@folders) { + my $folder=shift(@folders); + my $foldername=shift(@folders); + $foldername =~ s/\:(\d*)\:(\w*)\:(\w*):(\d*)\:?(\d*)$//; + push(@pathitems,&unescape($foldername)); + } + if ($title) { + push(@pathitems,&unescape($title)); + } + $displaypath = join(' » ',@pathitems); + } else { + $symb = &Apache::lonnet::symbread($url); + my ($map,$id,$res)=&Apache::lonnet::decode_symb($symb); + my $navmap=Apache::lonnavmaps::navmap->new; + if (ref($navmap)) { + my $res = $navmap->getBySymb($symb); + if (ref($res)) { + my @pathitems = + &Apache::loncommon::get_folder_hierarchy($navmap,$map,1); + $itemtitle = $res->compTitle(); + push(@pathitems,$itemtitle); + $displaypath = join(' » ',@pathitems); + } + } + } + } + return ($symb,$itemtitle,$displaypath); +} + sub debug { if ($Apache::lonxml::debug eq "1") { $|=1; @@ -1541,8 +1965,9 @@ sub debug { } sub show_error_warn_msg { - if ($env{'request.filename'} eq '/home/httpd/html/res/lib/templates/simpleproblem.problem' && - &Apache::lonnet::allowed('mdc',$env{'request.course.id'})) { + if (($env{'request.filename'} eq + $Apache::lonnet::perlvar{'lonDocRoot'}.'/res/lib/templates/simpleproblem.problem') && + (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) { return 1; } return (($Apache::lonxml::debug eq 1) || @@ -1553,53 +1978,83 @@ sub show_error_warn_msg { } sub error { + my @errors = @_; + $errorcount++; + + $Apache::lonxml::internal_error=1; + + if (defined($Apache::inputtags::part)) { + if ( @Apache::inputtags::response ) { + push(@errors, + &mt("This error occurred while processing response [_1] in part [_2]", + $Apache::inputtags::response[-1], + $Apache::inputtags::part)); + } else { + push(@errors, + &mt("This error occurred while processing part [_1]", + $Apache::inputtags::part)); + } + } + if ( &show_error_warn_msg() ) { # If printing in construction space, put the error inside 

 	push(@Apache::lonxml::error_messages,
-	     $Apache::lonxml::warnings_error_header.
-	     "ERROR:".join("
\n",@_)."
\n");
+	     $Apache::lonxml::warnings_error_header
+             .'
'
+             .''.&mt('ERROR:').' '.join("
\n",@errors)
+             ."
\n");
 	$Apache::lonxml::warnings_error_header='';
     } else {
 	my $errormsg;
 	my ($symb)=&Apache::lonnet::symbread();
 	if ( !$symb ) {
 	    #public or browsers
-	    $errormsg=&mt("An error occured while processing this resource. The author has been notified.");
+	    $errormsg=&mt("An error occurred while processing this resource. The author has been notified.");
 	}
-	my $msg = join('
',@_);
+	my $host=$Apache::lonnet::perlvar{'lonHostID'};
+	push(@errors,
+        &mt("The error occurred on host [_1]",
+             "$host"));
+
+	my $msg = join('
', @errors);
+
 	#notify author
 	&Apache::lonmsg::author_res_msg($env{'request.filename'},$msg);
 	#notify course
 	if ( $symb && $env{'request.course.id'} ) {
 	    my $cnum=$env{'course.'.$env{'request.course.id'}.'.num'};
 	    my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
-	    my (undef,%users)=&Apache::lonfeedback::decide_receiver(undef,0,1,1,1);
+	    my (undef,%users)=&Apache::lonmsg::decide_receiver(undef,0,1,1,1);
 	    my $declutter=&Apache::lonnet::declutter($env{'request.filename'});
+            my $baseurl = &Apache::lonnet::clutter($declutter);
 	    my @userlist;
 	    foreach (keys %users) {
 		my ($user,$domain) = split(/:/, $_);
-		push(@userlist,"$user\@$domain");
+		push(@userlist,"$user:$domain");
 		my $key=$declutter.'_'.$user.'_'.$domain;
 		my %lastnotified=&Apache::lonnet::get('nohist_xmlerrornotifications',
 						      [$key],
 						      $cdom,$cnum);
 		my $now=time;
 		if ($now-$lastnotified{$key}>86400) {
+                    my $title = &Apache::lonnet::gettitle($symb);
+                    my $sentmessage;
 		    &Apache::lonmsg::user_normal_msg($user,$domain,
-						 "Error [$declutter]",$msg);
+		        "Error [$title]",$msg,'',$baseurl,'','',
+                        \$sentmessage,$symb,$title,1);
 		    &Apache::lonnet::put('nohist_xmlerrornotifications',
 					 {$key => $now},
 					 $cdom,$cnum);		
 		}
 	    }
 	    if ($env{'request.role.adv'}) {
-		$errormsg=&mt("An error occured while processing this resource. The course personnel ([_1]) and the author have been notified.",join(', ',@userlist));
+		$errormsg=&mt("An error occurred while processing this resource. The course personnel ([_1]) and the author have been notified.",join(', ',@userlist));
 	    } else {
-		$errormsg=&mt("An error occured while processing this resource. The instructor has been notified.");
+		$errormsg=&mt("An error occurred while processing this resource. The instructor has been notified.");
 	    }
 	}
-	push(@Apache::lonxml::error_messages,"$errormsg 
");
+	push(@Apache::lonxml::error_messages,"$errormsg
");
     }
 }
 
@@ -1609,8 +2064,11 @@ sub warning {
     if ($env{'form.grade_target'} ne 'tex') {
 	if ( &show_error_warn_msg() ) {
 	    push(@Apache::lonxml::warning_messages,
-		 $Apache::lonxml::warnings_error_header.
-		 "WARNING:".join('
',@_)."
\n");
+		 $Apache::lonxml::warnings_error_header
+                .'
'
+                .&mt('[_1]W[_2]ARNING','','').": ".join('
',@_)
+                ."
\n"
+                );
 	    $Apache::lonxml::warnings_error_header='';
 	}
     }
@@ -1641,23 +2099,33 @@ sub add_messages {
 }
 
 sub get_param {
-    my ($param,$parstack,$safeeval,$context,$case_insensitive) = @_;
+    my ($param,$parstack,$safeeval,$context,$case_insensitive, $noelide) = @_;
+
     if ( ! $context ) { $context = -1; }
     my $args ='';
     if ( $#$parstack > (-2-$context) ) { $args=$$parstack[$context]; }
     if ( ! $Apache::lonxml::usestyle ) {
 	$args=$Apache::lonxml::style_values.$args;
     }
+
+
+    if ($noelide) {
+#	$args =~ s/\\'/'/g;
+	$args =~ s/'\$/'\\\$/g;
+    }
+
     if ( ! $args ) { return undef; }
     if ( $case_insensitive ) {
-	if ($args =~ s/(my \$)(\Q$param\E)(=\")/$1.lc($2).$3/ei) {
+	if ($args =~ s/(my (?:.*))(\$\Q$param\E[,\)])/$1.lc($2)/ei) {
+
 	    return &Apache::run::run("{$args;".'return $'.$param.'}',
                                      $safeeval); #'
 	} else {
 	    return undef;
 	}
     } else {
-	if ( $args =~ /my \$\Q$param\E=\"/ ) {
+	if ( $args =~ /my .*\$\Q$param\E[,\)]/ ) {
+	    
 	    return &Apache::run::run("{$args;".'return $'.$param.'}',
                                      $safeeval); #'
 	} else {
@@ -1676,10 +2144,10 @@ sub get_param_var {
   }
   &Apache::lonxml::debug("Args are $args param is $param");
   if ($case_insensitive) {
-      if (! ($args=~s/(my \$)(\Q$param\E)(=\")/$1.lc($2).$3/ei)) {
+      if (! ($args=~s/(my (?:.*))(\$\Q$param\E[,\)])/$1.lc($2)/ei)) {
 	  return undef;
       }
-  } elsif ( $args !~ /my \$\Q$param\E=\"/ ) { 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 =~ /^[\$\@\%][a-zA-Z_]\w*$/) {
@@ -1695,116 +2163,247 @@ sub get_param_var {
   }
 }
 
-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,$helpfile,$helpdesc) = 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;
-      $insertlist{"$tagnum.helpfile"} = $helpfile;
-      $insertlist{"$tagnum.helpdesc"} = $helpdesc;
-      $insertlist{"$tag.num"}=$tagnum;
-      $tagnum++;
+sub register_insert_xml {
+    my $parser = HTML::LCParser->new($Apache::lonnet::perlvar{'lonTabDir'}
+				     .'/insertlist.xml');
+    my ($tagnum,$in_help)=(0,0);
+    my @alltags;
+    my $tag;
+    while (my $token = $parser->get_token()) {
+	if ($token->[0] eq 'S') {
+	    my $key;
+	    if ($token->[1] eq 'tag') {
+		$tag = $token->[2]{'name'};
+                if (defined($tag)) {
+		    $insertlist{$tagnum.'.tag'} = $tag;
+		    $insertlist{$tag.'.num'}   = $tagnum;
+		    push(@alltags,$tag);
+                }
+	    } elsif ($in_help && $token->[1] eq 'file') {
+		$key = $tag.'.helpfile';
+	    } elsif ($in_help && $token->[1] eq 'description') {
+		$key = $tag.'.helpdesc';
+	    } elsif ($token->[1] eq 'description' ||
+		     $token->[1] eq 'color'       ||
+		     $token->[1] eq 'show'          ) {
+		$key = $tag.'.'.$token->[1];
+	    } elsif ($token->[1] eq 'insert_sub') {
+		$key = $tag.'.function';
+	    } elsif ($token->[1] eq 'help') {
+		$in_help=1;
+	    } elsif ($token->[1] eq 'allow') {
+		$key = $tag.'.allow';
+	    }
+	    if (defined($key)) {
+		$insertlist{$key} = $parser->get_text();
+		$insertlist{$key} =~ s/(^\s*|\s*$ )//gx;
+	    }
+	} elsif ($token->[0] eq 'E') {
+	    if      ($token->[1] eq 'tag') {
+		undef($tag);
+		$tagnum++;
+	    } elsif ($token->[1] eq 'help') {
+		undef($in_help);
+	    }
+	}
     }
-  }
-  $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);
+    
+    # parse the allows and ignore tags set to no
+    foreach my $tag (@alltags) {	
+        next if (!exists($insertlist{$tag.'.allow'}));
+	my $allow =  $insertlist{$tag.'.allow'};
+       	foreach my $element (split(',',$allow)) {
+	    $element =~ s/(^\s*|\s*$ )//gx;
+	    if (!exists($insertlist{$element.'.show'})
+                || $insertlist{$element.'.show'} ne 'no') {
+		push(@{ $insertlist{$tag.'.which'} },$element);
+	    }
 	}
-      }
     }
-    $tagnum++;
-  }
+}
+
+sub register_insert {
+    return ®ister_insert_xml(@_);
+#    &dump_insertlist('2');
+}
+
+sub dump_insertlist {
+    my ($ext) = @_;
+    open(XML,">/tmp/insertlist.xml.$ext");
+    print XML ("");
+    my $i=0;
+
+    while (exists($insertlist{"$i.tag"})) {
+	my $tag = $insertlist{"$i.tag"};
+	print XML ("
+\t");
+	if (defined($insertlist{"$tag.description"})) {
+	    print XML ("
+\t\t".$insertlist{"$tag.description"}."");
+	}
+	if (defined($insertlist{"$tag.color"})) {
+	    print XML ("
+\t\t".$insertlist{"$tag.color"}."");
+	}
+	if (defined($insertlist{"$tag.function"})) {
+	    print XML ("
+\t\t".$insertlist{"$tag.function"}."");
+	}
+	if (defined($insertlist{"$tag.show"})
+	    && $insertlist{"$tag.show"} ne 'yes') {
+	    print XML ("
+\t\t".$insertlist{"$tag.show"}."");
+	}
+	if (defined($insertlist{"$tag.helpfile"})) {
+	    print XML ("
+\t\t
+\t\t\t".$insertlist{"$tag.helpfile"}."");
+	    if ($insertlist{"$tag.helpdesc"} ne '') {
+		print XML ("
+\t\t\t".$insertlist{"$tag.helpdesc"}."");
+	    }
+	    print XML ("
+\t\t");
+	}
+	if (defined($insertlist{"$tag.which"})) {
+	    print XML ("
+\t\t".join(',',sort(@{ $insertlist{"$tag.which"} }))."");
+	}
+	print XML ("
+\t");
+	$i++;
+    }
+    print XML ("\n\n");
+    close(XML);
 }
 
 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'};
+    my ($token)=@_;
+    my $tag = &get_tag($token);
+    return $insertlist{$tag.'.description'};
 }
 
 # Returns a list containing the help file, and the description
 sub helpinfo {
-  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.'.helpfile'}, $insertlist{$tagnum.'.helpdesc'});
+    my ($token)=@_;
+    my $tag = &get_tag($token);
+    return ($insertlist{$tag.'.helpfile'}, $insertlist{$tag.'.helpdesc'});
 }
 
-# ----------------------------------------------------------------- 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)=
-	  &Apache::loncommon::get_env_multiple('form.grade_courseid');
-      my $allowed=&Apache::lonnet::allowed('vgr',$tmp_courseid);
-      if (!$allowed && 
-	  exists($env{'request.course.sec'}) && 
-	  $env{'request.course.sec'} !~ /^\s*$/) {
-	  $allowed=&Apache::lonnet::allowed('vgr',$tmp_courseid.
-					    '/'.$env{'request.course.sec'});
-      }
-      if ($allowed) {
-	  ($symb)=&Apache::loncommon::get_env_multiple('form.grade_symb');
-	  $courseid=$tmp_courseid;
-	  ($domain)=&Apache::loncommon::get_env_multiple('form.grade_domain');
-	  ($name)=&Apache::loncommon::get_env_multiple('form.grade_username');
-	  return ($symb,$courseid,$domain,$name,$publicuser);
-      }
-  }
-  if (!$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,$publicuser);
+sub get_tag {
+    my ($token)=@_;
+    my $tagnum;
+    my $tag=$token->[1];
+    foreach my $namespace (reverse(@Apache::lonxml::namespace)) {
+	my $testtag = $namespace.'::'.$tag;
+	$tagnum = $insertlist{"$testtag.num"};
+	last if (defined($tagnum));
+    }
+    if (!defined($tagnum)) {
+	$tagnum = $Apache::lonxml::insertlist{"$tag.num"};
+    }
+    return $insertlist{"$tagnum.tag"};
+}
+
+############################################################
+#                                           PDF-FORM-METHODS
+
+=pod
+
+=item &print_pdf_radiobutton(fieldname, value)
+
+Returns a latexline to generate a PDF-Form-Radiobutton.
+Note: Radiobuttons with equal names are automaticly grouped 
+      in a selection-group.
+
+$fieldname: PDF internalname of the radiobutton(group)
+$value:     Value of radiobutton
+
+=cut
+sub print_pdf_radiobutton {
+    my ($fieldname, $value) = @_;
+    return '\radioButton[\symbolchoice{circle}]{'
+           .$fieldname.'}{10bp}{10bp}{'.$value.'}';
+}
+
+
+=pod
+
+=item &print_pdf_start_combobox(fieldname)
+
+Starts a latexline to generate a PDF-Form-Combobox with text.
+
+$fieldname: PDF internal name of the Combobox
+
+=cut
+sub print_pdf_start_combobox {
+    my $result;
+    my ($fieldName) = @_;
+    $result .= '\begin{tabularx}{\textwidth}{p{2.5cm}X}'."\n";
+    $result .= '\comboBox[]{'.$fieldName.'}{2.3cm}{14bp}{'; # 
+
+    return $result;
+}
+
+
+=pod
+
+=item &print_pdf_add_combobox_option(options)
+
+Generates a latexline to add Options to a PDF-Form-ComboBox.
+
+$option: PDF internal name of the Combobox-Option
+
+=cut
+sub print_pdf_add_combobox_option {
+
+    my $result;
+    my ($option) = @_;  
+
+    $result .= '('.$option.')';
+    
+    return $result;
+}
+
+
+=pod
+
+=item &print_pdf_end_combobox(text) {
+
+Returns latexcode to end a PDF-Form-Combobox with text.
+
+=cut
+sub print_pdf_end_combobox {
+    my $result;
+    my ($text) = @_;
+
+    $result .= '}&'.$text."\\\\\n";
+    $result .= '\end{tabularx}' . "\n";
+    $result .= '\hspace{2mm}' . "\n";
+    return $result;
+}
+
+
+=pod
+
+=item &print_pdf_hiddenField(fieldname, user, domain)
+
+Returns a latexline to generate a PDF-Form-hiddenField with userdata.
+
+$fieldname label for hiddentextfield
+$user:    name of user
+$domain:  domain of user
+
+=cut
+sub print_pdf_hiddenfield {
+    my $result;
+    my ($fieldname, $user, $domain) = @_;
+
+    $result .= '\textField [\F{\FHidden}\F{-\FPrint}\V{'.$domain.'&'.$user.'}]{'.$fieldname.'}{0in}{0in}'."\n";
+
+    return $result;
 }
 
 1;
 __END__
 
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