--- loncom/xml/lonxml.pm 2001/05/04 16:10:17 1.69 +++ loncom/xml/lonxml.pm 2001/05/31 22:38:36 1.83 @@ -6,17 +6,68 @@ # 6/1/1 Gerd Kortemeyer # 2/21,3/13 Guy # 3/29,5/4 Gerd Kortemeyer +# 5/10 Scott Harrison +# 5/26 Gerd Kortemeyer +# 5/27 H. K. Ng package Apache::lonxml; use vars -qw(@pwd @outputstack $redirection $import @extlinks $metamode); +qw(@pwd @outputstack $redirection $import @extlinks $metamode $evaluate %insertlist @namespace); use strict; use HTML::TokeParser; use Safe; use Safe::Hole; +use Math::Cephes qw(:trigs :hypers :bessels erf erfc); use Opcode; + +sub register { + my $space; + my @taglist; + my $temptag; + ($space,@taglist) = @_; + foreach $temptag (@taglist) { + $Apache::lonxml::alltags{$temptag}=$space; + } +} + use Apache::Constants qw(:common); +use Apache::lontexconvert; +use Apache::style; +use Apache::run; +use Apache::londefdef; +use Apache::scripttag; +use Apache::edit; +use Apache::lonnet; +use Apache::File; + +#================================================== Main subroutine: xmlparse +#debugging control, to turn on debugging modify the correct handler +$Apache::lonxml::debug=0; + +#path to the directory containing the file currently being processed +@pwd=(); + +#these two are used for capturing a subset of the output for later processing, +#don't touch them directly use &startredirection and &endredirection +@outputstack = (); +$redirection = 0; + +#controls wheter the tag actually does +$import = 1; +@extlinks=(); + +# meta mode is a bit weird only some output is to be turned off +# tag turns metamode off (defined in londefdef.pm) +$metamode = 0; + +# turns on and of run::evaluate actually derefencing var refs +$evaluate = 1; + +# data structure for eidt mode, determines what tags can go into what other tags +%insertlist=(); +#stores the list of active tag namespaces +@namespace=(); sub xmlbegin { my $output=''; @@ -37,9 +88,19 @@ sub xmlend { return ''; } +sub fontsettings() { + my $headerstring=''; + if (($ENV{'browser.os'} eq 'mac') && (!$ENV{'browser.mathml'})) { + $headerstring.= + ''; + } + return $headerstring; +} + sub registerurl { return (< +// BEGIN LON-CAPA Internal function LONCAPAreg() { if (window.location.pathname!="/res/adm/pages/menu.html") { menu=window.open("","LONCAPAmenu"); @@ -54,6 +115,7 @@ sub registerurl { menu.currentStale=1; } } +// END LON-CAPA Internal ENDSCRIPT } @@ -66,51 +128,35 @@ sub unloadevents() { return 'LONCAPAstale();'; } -sub register { - my $space; - my @taglist; - my $temptag; - ($space,@taglist) = @_; - foreach $temptag (@taglist) { - $Apache::lonxml::alltags{$temptag}=$space; - } -} - sub printalltags { my $temp; foreach $temp (sort keys %Apache::lonxml::alltags) { &Apache::lonxml::debug("$temp -- $Apache::lonxml::alltags{$temp}"); } } -use Apache::style; -use Apache::run; -use Apache::londefdef; -use Apache::scripttag; -use Apache::edit; -#================================================== Main subroutine: xmlparse -@pwd=(); -@outputstack = (); -$redirection = 0; -$import = 1; -@extlinks=(); -$metamode = 0; sub xmlparse { my ($target,$content_file_string,$safeinit,%style_for_target) = @_; if ($target eq 'meta') { - # meta mode is a bit weird only some output is to be turned off - # tag turns metamode off (defined in londefdef.pm) $Apache::lonxml::redirection = 0; $Apache::lonxml::metamode = 1; + $Apache::lonxml::evaluate = 1; $Apache::lonxml::import = 0; } elsif ($target eq 'grade') { &startredirection; $Apache::lonxml::metamode = 0; + $Apache::lonxml::evaluate = 1; $Apache::lonxml::import = 1; - } else { + } elsif ($target eq 'modified') { + $Apache::lonxml::redirection = 0; $Apache::lonxml::metamode = 0; + $Apache::lonxml::evaluate = 0; + $Apache::lonxml::import = 0; + } else { $Apache::lonxml::redirection = 0; + $Apache::lonxml::metamode = 0; + $Apache::lonxml::evaluate = 1; $Apache::lonxml::import = 1; } #&printalltags(); @@ -126,15 +172,7 @@ sub xmlparse { my $safeeval = new Safe; my $safehole = new Safe::Hole; - $safeeval->permit("entereval"); - $safeeval->permit(":base_math"); - $safeeval->deny(":base_io"); - $safehole->wrap(\&Apache::lonnet::EXT,$safeeval,'&EXT'); -#need to inspect this class of ops -# $safeeval->deny(":base_orig"); - $safeinit .= ';$external::target='.$target.';'; - $safeinit .= ';$external::randomseed='.&Apache::lonnet::rndseed().';'; - &Apache::run::run($safeinit,$safeeval); + &init_safespace($target,$safeeval,$safehole,$safeinit); #-------------------- Redefinition of the target in the case of compound target ($target, my @tenta) = split('&&',$target); @@ -296,6 +334,7 @@ sub recurse { sub callsub { my ($sub,$target,$token,$parstack,$parser,$safeeval,$style)=@_; my $currentstring=''; + my $nodefault; { my $sub1; no strict 'refs'; @@ -311,30 +350,79 @@ sub callsub { $space=$Apache::lonxml::alltags{$tag} } if ($space) { - &Apache::lonxml::debug("Calling sub $sub in $space $metamode
\n"); + #&Apache::lonxml::debug("Calling sub $sub in $space $metamode
\n"); $sub1="$space\:\:$sub"; $Apache::lonxml::curdepth=join('_',@Apache::lonxml::depthcounter); - $currentstring .= &$sub1($target,$token,$parstack,$parser, - $safeeval,$style); + ($currentstring,$nodefault) = &$sub1($target,$token,$parstack,$parser, + $safeeval,$style); } else { - &Apache::lonxml::debug("NOT Calling sub $sub in $space $metamode
\n"); + #&Apache::lonxml::debug("NOT Calling sub $sub in $space $metamode
\n"); if ($metamode <1) { if (defined($token->[4]) && ($metamode < 1)) { - $currentstring .= $token->[4]; + $currentstring = $token->[4]; } else { - $currentstring .= $token->[2]; + $currentstring = $token->[2]; } } } - if ($target eq 'edit' && $token->[0] eq 'E') { - $currentstring .= &Apache::edit::tag_end($target,$token,$parstack,$parser, - $safeeval,$style); +# &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(); + } else { + $currentstring = $token->[2]; + } + } } use strict 'refs'; } return $currentstring; } +sub init_safespace { + my ($target,$safeeval,$safehole,$safeinit) = @_; + $safeeval->permit("entereval"); + $safeeval->permit(":base_math"); + $safeeval->permit("sort"); + $safeeval->deny(":base_io"); + $safehole->wrap(\&Apache::lonnet::EXT,$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'); + +#need to inspect this class of ops +# $safeeval->deny(":base_orig"); + $safeinit .= ';$external::target='.$target.';'; + $safeinit .= ';$external::randomseed='.&Apache::lonnet::rndseed().';'; + &Apache::run::run($safeinit,$safeeval); +} + sub startredirection { $Apache::lonxml::redirection++; push (@Apache::lonxml::outputstack, ''); @@ -342,7 +430,7 @@ sub startredirection { sub endredirection { if (!$Apache::lonxml::redirection) { - &Apache::lonxml::error("Endredirection was called, before a startredirection, perhaps you have unbalanced tags. Some debuggin information:".join ":",caller); + &Apache::lonxml::error("Endredirection was called, before a startredirection, perhaps you have unbalanced tags. Some debuging information:".join ":",caller); return ''; } $Apache::lonxml::redirection--; @@ -472,7 +560,6 @@ sub writeallows { # # Afterburner handles anchors, highlights and links # - sub afterburn { my $result=shift; map { @@ -515,6 +602,47 @@ ENDSCRIPT return $result; } +sub storefile { + my ($file,$contents)=@_; + if (my $fh=Apache::File->new('>'.$file)) { + print $fh $contents; + $fh->close(); + } +} + +sub inserteditinfo { + my ($result,$filecontents)=@_; + unless ($filecontents) { + $filecontents=(< + + + Title of Document Goes Here + + + + + Body of Document Goes Here + + + +SIMPLECONTENT + } + my $editheader='Edit below
'; + my $editfooter=(< + +
+ +
+ +
+ENDFOOTER + $result=~s/(\]*\>)/$1$editheader/is; + $result=~s/(\<\/body\>)/$editfooter/is; + return $result; +} + sub handler { my $request=shift; @@ -528,30 +656,46 @@ sub handler { $request->content_type('text/html'); } -# $request->print(< -# -#Just test -# -# -#ENDHEADER -# &Apache::lonhomework::send_header($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'}) { + &storefile($file,$ENV{'form.filecont'}); + } + } my %mystyle; my $result = ''; my $filecontents=&Apache::lonnet::getfile($file); if ($filecontents == -1) { - &Apache::lonxml::error(" Unable to find $file"); + $result=(< + +File not found + + +File not found: $file + + +ENDNOTFOUND $filecontents=''; } else { $result = &Apache::lonxml::xmlparse($target,$filecontents,'',%mystyle); } +# +# Edit action? Insert editing commands +# + unless ($ENV{'request.state'} eq 'published') { + $result=&inserteditinfo($result,$filecontents); + } + $request->print($result); writeallows($request->uri); @@ -565,7 +709,7 @@ sub debug { } sub error { - if ($Apache::lonxml::debug eq 1) { + if (($Apache::lonxml::debug eq 1) || ($ENV{'request.state'} eq 'construct') ) { print "ERROR:".$_[0]."
\n"; } else { print "An Error occured while processing this resource. The instructor has been notified.
"; @@ -579,19 +723,59 @@ sub error { &Apache::lonmsg::user_normal_msg($user,$domain,"Error in $ENV{'request.filename'}",$_[0]); } } - + #FIXME probably shouldn't have me get everything forever. &Apache::lonmsg::user_normal_msg('albertel','msu',"Error in $ENV{'request.filename'}",$_[0]); - #&Apache::lonmsg::user_normal_msg('albertel','103',"Error in $ENV{'request.filename'}",$_[0]); + #&Apache::lonmsg::user_normal_msg('albertel','103',"Error in $ENV{'request.filename'}",$_[0]); } } sub warning { - if ($Apache::lonxml::debug eq 1) { + if ($ENV{'request.state'} eq 'construct') { print "WARNING:".$_[0]."
\n"; } } +sub get_param { + my ($param,$parstack,$safeeval,$context) = @_; + if ( ! $context ) { $context = -1; } + my $args =''; + if ( $#$parstack > (-2-$context) ) { $args=$$parstack[$context]; } + return &Apache::run::run("{$args;".'return $'.$param.'}',$safeeval); #' +} + +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,$descrip,$function,$show) = split(/,/, $line); + $insertlist{"$tagnum.tag"} = $tag; + $insertlist{"$tagnum.description"} = $descrip; + $insertlist{"$tagnum.function"} = $function; + $insertlist{"$tagnum.show"}= $show; + $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++; + } +} 1; __END__