--- loncom/xml/lonxml.pm 2006/02/04 22:11:42 1.396 +++ loncom/xml/lonxml.pm 2006/09/19 18:17:18 1.418 @@ -1,7 +1,7 @@ # The LearningOnline Network with CAPA # XML Parser Module # -# $Id: lonxml.pm,v 1.396 2006/02/04 22:11:42 foxr Exp $ +# $Id: lonxml.pm,v 1.418 2006/09/19 18:17:18 albertel 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(); @@ -123,9 +123,6 @@ $evaluate = 1; # stores the list of active tag namespaces @namespace=(); -# has the dynamic menu been updated to know about this resource -$Apache::lonxml::registered=0; - # a pointer the the Apache request object $Apache::lonxml::request=''; @@ -162,28 +159,6 @@ 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 +179,9 @@ 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 { @@ -304,18 +279,6 @@ 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) { @@ -403,13 +366,14 @@ 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; $string=~s/\\\%|\%/\\\%/g; @@ -637,8 +601,6 @@ sub callsub { sub setup_globals { my ($request,$target)=@_; $Apache::lonxml::request=$request; - $Apache::lonxml::registered = 0; - @Apache::lonxml::htmlareafields=(); $errorcount=0; $warningcount=0; $Apache::lonxml::default_homework_loaded=0; @@ -649,6 +611,7 @@ sub setup_globals { @Apache::lonxml::ssi_info=(); $Apache::lonxml::post_evaluate=1; $Apache::lonxml::warnings_error_header=''; + $Apache::lonxml::substitute_LaTeX_symbols = 1; if ($target eq 'meta') { $Apache::lonxml::redirection = 0; $Apache::lonxml::metamode = 1; @@ -970,6 +933,16 @@ sub decreasedepth { #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' && $id =~ /(\.|_)/) { + &error(&mt("IDs are not allowed to contain "_" or "."")); + } + if ($id =~ /^\s*$/) { $id = $Apache::lonxml::curdepth; } + return $id; +} + sub get_all_text_unbalanced { #there is a copy of this in lonpublisher.pm my($tag,$pars)= @_; @@ -1027,9 +1000,36 @@ sub init_counter { sub store_counter { &Apache::lonnet::appenv(('form.counter' => $Apache::lonxml::counter)); + $Apache::lonxml::counter_changed=0; return ''; } +{ + my $state; + sub clear_problem_counter { + undef($state); + &Apache::lonnet::delenv('form.counter'); + &Apache::lonxml::init_counter(); + &Apache::lonxml::store_counter(); + } + + sub remember_problem_counter { + &Apache::lonnet::transfer_profile_to_env(); + $state = $env{'form.counter'}; + } + + sub restore_problem_counter { + if (defined($state)) { + &Apache::lonnet::appenv(('form.counter' => $state)); + } + } + sub get_problem_counter { + if ($Apache::lonxml::counter_changed) { &store_counter() } + &Apache::lonnet::transfer_profile_to_env(); + return $env{'form.counter'}; + } +} + sub get_all_text { my($tag,$pars,$style)= @_; my $gotfullstack=1; @@ -1149,19 +1149,23 @@ sub newparser { } sub parstring { - my ($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 { @@ -1289,8 +1293,7 @@ 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()) { $initialize.=(< - -$fnf - -$bodytag +$start_page $fnf: $file - - +$end_page ENDNOTFOUND $filecontents=''; if ($env{'request.state'} ne 'published') { @@ -1468,18 +1467,20 @@ ENDNOTFOUND if ($env{'form.editmode'} && (!($env{'form.viewmode'}))) { 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); @@ -1542,9 +1543,11 @@ 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'}; @@ -1562,7 +1565,7 @@ 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); @@ -1625,14 +1628,14 @@ 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 {