--- loncom/xml/lonxml.pm 2001/05/04 21:17:24 1.72 +++ loncom/xml/lonxml.pm 2001/06/08 20:01:45 1.88 @@ -6,14 +6,19 @@ # 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 +# 6/2,6/3,6/8 Gerd Kortemeyer package Apache::lonxml; use vars -qw(@pwd @outputstack $redirection $import @extlinks $metamode $evaluate); +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 { @@ -33,6 +38,9 @@ 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; @@ -56,6 +64,11 @@ $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=''; @@ -86,26 +99,100 @@ sub fontsettings() { } sub registerurl { - return (< // BEGIN LON-CAPA Internal + function LONCAPAreg() { - if (window.location.pathname!="/res/adm/pages/menu.html") { menu=window.open("","LONCAPAmenu"); + menu.clearTimeout(menu.menucltim); menu.currentURL=window.location.pathname; menu.currentStale=0; - } + menu.clearbut(3,1); + menu.switchbutton + (8,1,'eval.gif','evaluate','this','gopost("/adm/evaluate",currentURL)'); + menu.switchbutton + (8,2,'fdbk.gif','feedback','on this','gopost("/adm/feedback",currentURL)'); + menu.switchbutton + (8,3,'prt.gif','prepare','printout','gopost("/adm/printout",currentURL)'); + menu.switchbutton + (2,1,'back.gif','backward','','gopost("/adm/flip","back:"+currentURL)'); + menu.switchbutton + (2,3,'forw.gif','forward','','gopost("/adm/flip","forward:"+currentURL)'); + $hwkadd } - + function LONCAPAstale() { - if (window.location.pathname!="/res/adm/pages/menu.html") { menu=window.open("","LONCAPAmenu"); menu.currentStale=1; - } + menu.switchbutton + (3,1,'reload.gif','return','location','go(currentURL)'); + menu.menucltim=menu.setTimeout( + 'clearbut(2,1);clearbut(2,3);clearbut(8,1);clearbut(8,2);clearbut(8,3);', + 2000); + + } + +// END LON-CAPA Internal + +ENDREGTHIS + + } else { + return (< +// BEGIN LON-CAPA Internal + + function LONCAPAreg() { + menu=window.open("","LONCAPAmenu"); + menu.currentStale=1; + menu.clearbut(2,1); + menu.clearbut(2,3); + menu.clearbut(8,1); + menu.clearbut(8,2); + menu.clearbut(8,3); + if (menu.currentURL) { + menu.switchbutton + (3,1,'reload.gif','return','location','go(currentURL)'); + } else { + menu.clearbut(3,1); + } } + + function LONCAPAstale() { + } + // END LON-CAPA Internal -ENDSCRIPT +ENDDONOTREGTHIS + + } } sub loadevents() { @@ -160,15 +247,7 @@ 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); @@ -199,8 +278,8 @@ sub xmlparse { $safeeval,\%style_for_target,@parstack); } } else { - $result = &callsub("start_$token->[1]", $target, $token,\@parstack, - \@pars, $safeeval, \%style_for_target); + $result = &callsub("start_$token->[1]", $target, $token, \@stack, + \@parstack, \@pars, $safeeval, \%style_for_target); } } elsif ($token->[0] eq 'E') { #clear out any tags that didn't end @@ -221,8 +300,8 @@ sub xmlparse { } } else { - $result = &callsub("end_$token->[1]", $target, $token, \@parstack, - \@pars,$safeeval, \%style_for_target); + $result = &callsub("end_$token->[1]", $target, $token, \@stack, + \@parstack, \@pars,$safeeval, \%style_for_target); } } else { &Apache::lonxml::error("Unknown token event :$token->[0]:$token->[1]:"); @@ -283,9 +362,9 @@ sub recurse { push (@innerstack,$tokenpat->[1]); push (@innerparstack,&parstring($tokenpat)); &increasedepth($tokenpat); - $partstring = &callsub("start_$tokenpat->[1]", - $target, $tokenpat, \@innerparstack, - \@pat, $safeeval, $style_for_target); + $partstring = &callsub("start_$tokenpat->[1]", $target, $tokenpat, + \@innerstack, \@innerparstack, \@pat, + $safeeval, $style_for_target); } elsif ($tokenpat->[0] eq 'E') { #clear out any tags that didn't end while ($tokenpat->[1] ne $innerstack[$#innerstack] @@ -293,9 +372,9 @@ sub recurse { &Apache::lonxml::warning("Unbalanced tags in resource $innerstack['-1']"); pop @innerstack;pop @innerparstack;&decreasedepth($tokenpat); } - $partstring = &callsub("end_$tokenpat->[1]", - $target, $tokenpat, \@innerparstack, - \@pat, $safeeval, $style_for_target); + $partstring = &callsub("end_$tokenpat->[1]", $target, $tokenpat, + \@innerstack, \@innerparstack, \@pat, + $safeeval, $style_for_target); } else { &Apache::lonxml::error("Unknown token event :$tokenpat->[0]:$tokenpat->[1]:"); } @@ -328,14 +407,15 @@ sub recurse { } sub callsub { - my ($sub,$target,$token,$parstack,$parser,$safeeval,$style)=@_; + my ($sub,$target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; my $currentstring=''; my $nodefault; { my $sub1; no strict 'refs'; if ($target eq 'edit' && $token->[0] eq 'S') { - $currentstring = &Apache::edit::tag_start($target,$token,$parstack,$parser, + $currentstring = &Apache::edit::tag_start($target,$token,$tagstack, + $parstack,$parser, $safeeval,$style); } my $tag=$token->[1]; @@ -349,8 +429,9 @@ sub callsub { #&Apache::lonxml::debug("Calling sub $sub in $space $metamode
\n"); $sub1="$space\:\:$sub"; $Apache::lonxml::curdepth=join('_',@Apache::lonxml::depthcounter); - ($currentstring,$nodefault) = &$sub1($target,$token,$parstack,$parser, - $safeeval,$style); + ($currentstring,$nodefault) = &$sub1($target,$token,$tagstack, + $parstack,$parser,$safeeval, + $style); } else { #&Apache::lonxml::debug("NOT Calling sub $sub in $space $metamode
\n"); if ($metamode <1) { @@ -361,17 +442,19 @@ sub callsub { } } } - &Apache::lonxml::debug("nodefalt:$nodefault:"); +# &Apache::lonxml::debug("nodefalt:$nodefault:"); if ($currentstring eq '' && $nodefault eq '') { if ($target eq 'edit') { + &Apache::lonxml::debug("doing default edit for $token->[1]"); if ($token->[0] eq 'S') { - $currentstring = &Apache::edit::tag_start($token,$target); + $currentstring = &Apache::edit::tag_start($target,$token); } elsif ($token->[0] eq 'E') { - $currentstring = &Apache::edit::tag_end($token,$target); + $currentstring = &Apache::edit::tag_end($target,$token); } } elsif ($target eq 'modified') { if ($token->[0] eq 'S') { $currentstring = $token->[4]; + $currentstring.=&Apache::edit::handle_insert(); } else { $currentstring = $token->[2]; } @@ -382,6 +465,41 @@ sub callsub { 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, ''); @@ -561,6 +679,47 @@ 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; @@ -574,30 +733,46 @@ 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($request->uri); @@ -611,7 +786,7 @@ sub debug { } sub error { - if ($Apache::lonxml::debug eq 1) { + if (($Apache::lonxml::debug eq 1) || ($ENV{'request.state'} eq 'construct') ) { print "ERROR:".$_[0]."
\n"; } else { print "An Error occured while processing this resource. The instructor has been notified.
"; @@ -625,19 +800,59 @@ sub error { &Apache::lonmsg::user_normal_msg($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__