--- loncom/xml/lonxml.pm 2006/03/10 23:49:35 1.401 +++ loncom/xml/lonxml.pm 2006/12/19 14:24:07 1.431 @@ -1,7 +1,7 @@ # The LearningOnline Network with CAPA # XML Parser Module # -# $Id: lonxml.pm,v 1.401 2006/03/10 23:49:35 albertel Exp $ +# $Id: lonxml.pm,v 1.431 2006/12/19 14:24:07 www Exp $ # # Copyright Michigan State University Board of Trustees # @@ -40,7 +40,7 @@ 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 HTML::LCParser(); use HTML::TreeBuilder(); @@ -88,6 +88,7 @@ use Apache::loncommon(); use Apache::lonfeedback(); use Apache::lonmsg(); use Apache::loncacc(); +use Apache::lonmaxima(); use Apache::lonlocal; #================================================== Main subroutine: xmlparse @@ -123,9 +124,6 @@ $evaluate = 1; # stores the list of active tag namespaces @namespace=(); -# has the dynamic menu been updated to know about this resource -$Apache::lonxml::registered=0; - # a pointer the the Apache request object $Apache::lonxml::request=''; @@ -162,28 +160,6 @@ 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'; @@ -204,9 +180,9 @@ sub xmlend { $discussion.='\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}\end{document}'; &Apache::lonxml::newparser($parser,\$discussion,''); return ''; - } else { - return $discussion.&Apache::loncommon::endbodytag(); } + + return $discussion; } sub tokeninputfield { @@ -276,7 +252,7 @@ sub printtokenheader { my ($target,$token,$tsymb,$tcrsid,$tudom,$tuname)=@_; unless ($token) { return ''; } - my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser(); + my ($symb,$courseid,$domain,$name) = &Apache::lonnet::whichuser(); unless ($tsymb) { $tsymb=$symb; } @@ -304,18 +280,6 @@ sub printtokenheader { } } -sub fontsettings { - my $headerstring=''; - if (($env{'browser.os'} eq 'mac') && (!$env{'browser.mathml'})) { - $headerstring.= - ''; - } elsif (!$env{'browser.mathml'} && $env{'browser.unicode'}) { - $headerstring.= - ''; - } - return $headerstring; -} - sub printalltags { my $temp; foreach $temp (sort keys %Apache::lonxml::alltags) { @@ -379,6 +343,11 @@ sub xmlparse { my $finaloutput = &inner_xmlparse($target,\@stack,\@parstack,\@pars, $safeeval,\%style_for_target,1); + if (@stack) { + &warning("At end of file some tags were still left unclosed, ". + '<'.join('>, <',reverse(@stack)). + '>'); + } if ($env{'request.uri'}) { &writeallows($env{'request.uri'}); } @@ -403,13 +372,14 @@ 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; $string=~s/\\\%|\%/\\\%/g; @@ -637,8 +607,6 @@ sub callsub { sub setup_globals { my ($request,$target)=@_; $Apache::lonxml::request=$request; - $Apache::lonxml::registered = 0; - @Apache::lonxml::htmlareafields=(); $errorcount=0; $warningcount=0; $Apache::lonxml::default_homework_loaded=0; @@ -707,6 +675,8 @@ sub init_safespace { '&chem_standard_order'); $safehole->wrap(\&Apache::response::check_status,$safeeval,'&check_status'); + $safehole->wrap(\&Apache::lonmaxima::maxima_eval,$safeeval,'&maxima_eval'); + $safehole->wrap(\&Math::Cephes::asin,$safeeval,'&asin'); $safehole->wrap(\&Math::Cephes::acos,$safeeval,'&acos'); $safehole->wrap(\&Math::Cephes::atan,$safeeval,'&atan'); @@ -810,8 +780,11 @@ sub init_safespace { $safehole->wrap(\&Math::Random::random_set_seed,$safeeval,'&random_set_seed'); $safehole->wrap(\&Apache::lonxml::error,$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'); - +# use Data::Dumper; +# $safehole->wrap(\&Data::Dumper::Dumper,$safeeval,'&LONCAPA_INTERNAL_Dumper'); #need to inspect this class of ops # $safeeval->deny(":base_orig"); $safeeval->permit("require"); @@ -851,7 +824,7 @@ sub delete_package_recurse { sub initialize_rndseed { my ($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"); @@ -1052,7 +1025,7 @@ sub store_counter { } sub remember_problem_counter { - &Apache::lonnet::transfer_profile_to_env(); + &Apache::lonnet::transfer_profile_to_env(undef,undef,1); $state = $env{'form.counter'}; } @@ -1063,7 +1036,7 @@ sub store_counter { } sub get_problem_counter { if ($Apache::lonxml::counter_changed) { &store_counter() } - &Apache::lonnet::transfer_profile_to_env(); + &Apache::lonnet::transfer_profile_to_env(undef,undef,1); return $env{'form.counter'}; } } @@ -1187,19 +1160,23 @@ sub newparser { } sub parstring { - my ($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 { @@ -1327,8 +1304,7 @@ sub inserteditinfo { my $initialize=''; if ($filetype eq 'html') { my $addbuttons=&Apache::lonhtmlcommon::htmlareaaddbuttons(); - $initialize=&Apache::lonhtmlcommon::htmlareaheaders(). - &Apache::lonhtmlcommon::spellheader(); + $initialize=&Apache::lonhtmlcommon::spellheader(); if (!&Apache::lonhtmlcommon::htmlareablocked() && &Apache::lonhtmlcommon::htmlareabrowser()) { $initialize.=(< '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 $editfooter=(< @@ -1444,31 +1423,23 @@ sub handler { # # Edit action? Save file. # - unless ($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'}); } } my %mystyle; my $result = ''; my $filecontents=&Apache::lonnet::getfile($file); if ($filecontents eq -1) { - my $bodytag=&Apache::loncommon::bodytag('File Error'); + my $start_page=&Apache::loncommon::start_page('File Error'); + my $end_page=&Apache::loncommon::end_page(); my $fnf=&mt('File not found'); $result=(< - -$fnf - -$bodytag +$start_page $fnf: $file - - +$end_page ENDNOTFOUND $filecontents=''; if ($env{'request.state'} ne 'published') { @@ -1489,7 +1460,8 @@ ENDNOTFOUND &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'}, ['editmode']); } - if (!$env{'form.editmode'} || $env{'form.viewmode'}) { + &Apache::lonnet::logthis("edit mode is ".$env{'form.editmode'}); + if (!$env{'form.editmode'} || $env{'form.viewmode'} || $env{'form.discardview'}) { $result = &Apache::lonxml::xmlparse($request,$target,$filecontents, '',%mystyle); undef($Apache::lonhomework::parsing_a_task); @@ -1503,21 +1475,24 @@ ENDNOTFOUND # Edit action? Insert editing commands # unless ($env{'request.state'} eq 'published') { - if ($env{'form.editmode'} && (!($env{'form.viewmode'}))) { + if ($env{'form.editmode'} && (!($env{'form.viewmode'})) && (!($env{'form.discardview'}))) + { my $displayfile=$request->uri; $displayfile=~s/^\/[^\/]*//; - my $bodytag=''; - if ($env{'environment.remote'} eq 'off') { - $bodytag=&Apache::loncommon::bodytag(); + my %options = (); + if ($env{'environment.remote'} ne 'off') { + $options{'bgcolor'} = '#FFFFFF'; } - $result=''.$bodytag. + my $start_page = &Apache::loncommon::start_page(undef,undef, + \%options); + $result=$start_page. &Apache::lonxml::message_location().'

'. $displayfile. - '

'; + ''.&Apache::loncommon::end_page(); $result=&inserteditinfo($result,$filecontents,$filetype); } } - if ($filetype eq 'html') { writeallows($request->uri); } + if ($filetype eq 'html') { &writeallows($request->uri); } &Apache::lonxml::add_messages(\$result); @@ -1580,9 +1555,11 @@ sub error { if ( !$symb ) { #public or browsers $errormsg=&mt("An error occured while processing this resource. The author has been notified."); - } + } + my $host=$Apache::lonnet::perlvar{'lonHostID'}; + my $msg = join('
',(@_,"The error occurred on host $host")); #notify author - &Apache::lonmsg::author_res_msg($env{'request.filename'},join('
',@_)); + &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'}; @@ -1600,7 +1577,7 @@ sub error { my $now=time; if ($now-$lastnotified{$key}>86400) { &Apache::lonmsg::user_normal_msg($user,$domain, - "Error [$declutter]",join('
',@_)); + "Error [$declutter]",$msg); &Apache::lonnet::put('nohist_xmlerrornotifications', {$key => $now}, $cdom,$cnum); @@ -1663,14 +1640,14 @@ sub get_param { } 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 { @@ -1689,10 +1666,10 @@ 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*$/) { @@ -1775,48 +1752,6 @@ sub helpinfo { return ($insertlist{$tagnum.'.helpfile'}, $insertlist{$tagnum.'.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); -} - 1; __END__