--- loncom/xml/lonxml.pm 2002/10/28 14:00:18 1.209 +++ loncom/xml/lonxml.pm 2003/02/17 20:10:08 1.235 @@ -1,7 +1,7 @@ # The LearningOnline Network with CAPA # XML Parser Module # -# $Id: lonxml.pm,v 1.209 2002/10/28 14:00:18 www Exp $ +# $Id: lonxml.pm,v 1.235 2003/02/17 20:10:08 sakharuk Exp $ # # Copyright Michigan State University Board of Trustees # @@ -41,7 +41,6 @@ # 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 # 6/2,6/3,6/8,6/9 Gerd Kortemeyer @@ -101,6 +100,7 @@ use Apache::File(); use Apache::loncommon(); use Apache::lonfeedback(); use Apache::lonmsg(); +use Apache::loncacc(); #================================================== Main subroutine: xmlparse #debugging control, to turn on debugging modify the correct handler @@ -144,10 +144,13 @@ $Apache::lonxml::registered=0; # a pointer the the Apache request object $Apache::lonxml::request=''; -# a problem number counter, and check on hether it is used -$Apache::lonxml::counter=0; +# a problem number counter, and check on ether it is used +$Apache::lonxml::counter=4; $Apache::lonxml::counter_changed=0; +#internal check on whether to look at style defs +$Apache::lonxml::usestyle=1; + sub xmlbegin { my $output=''; if ($ENV{'browser.mathml'}) { @@ -188,7 +191,8 @@ sub xmlend { my $idx; for ($idx=1;$idx<=$contrib{'version'};$idx++) { my $hidden=($contrib{'hidden'}=~/\.$idx\./); - unless (($hidden) && (!$seeid)) { + my $deleted=($contrib{'deleted'}=~/\.$idx\./); + unless ((($hidden) && (!$seeid)) || ($deleted)) { my $message=$contrib{$idx.':message'}; $message=~s/\n/\
/g; $message=&Apache::lontexconvert::msgtexconverted($message); @@ -222,8 +226,10 @@ sub xmlend { } else { $sender.=' Hide'; - } - } + } + $sender.=' Delete'; + } } else { if ($screenname) { $sender=''.$screenname.''; @@ -264,7 +270,7 @@ sub tokeninputfield { my $defhost=$Apache::lonnet::perlvar{'lonHostID'}; $defhost=~tr/a-z/A-Z/; return (< +\n"; - } - if ((($ENV{'request.publicaccess'}) || - (!&Apache::lonnet::is_on_map($ENV{'REQUEST_URI'}))) && - (!$forcereg)) { - return $result. - ''; - } - if ($Apache::lonxml::registered && !$forcereg) { return ''; } - $Apache::lonxml::registered=1; - my $nothing=''; - if ($ENV{'browser.type'} eq 'explorer') { $nothing='javascript:void(0);'; } - my $newmail=''; - if (&Apache::lonmsg::newmail()) { - $newmail='menu.setstatus("you have","messages");'; - } - my $timesync='menu.syncclock(1000*'.time.');'; - if (($ENV{'REQUEST_URI'}!~/^\/(res\/)*adm\//) || ($forcereg)) { - my $hwkadd=''; - if ($ENV{'request.filename'}=~/\.(problem|exam|quiz|assess|survey|form)$/) { - if (&Apache::lonnet::allowed('vgr',$ENV{'request.course.id'})) { - $hwkadd.=(< -// BEGIN LON-CAPA Internal - - function LONCAPAreg() { - menu=window.open("$nothing","LONCAPAmenu","",false); - menu.clearTimeout(menu.menucltim); - $timesync - $newmail - menu.currentURL=window.location.pathname; - menu.reloadURL=window.location.pathname; - menu.currentStale=0; - menu.clearbut(3,1); - menu.switchbutton - (6,3,'catalog.gif','catalog','info','catalog_info()'); - menu.switchbutton - (8,1,'eval.gif','evaluate','this','gopost("/adm/evaluate",currentURL)'); - menu.switchbutton - (8,2,'fdbk.gif','feedback','discuss','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)'); - menu.switchbutton - (9,1,'sbkm.gif','set','bookmark','set_bookmark()'); - menu.switchbutton - (9,2,'vbkm.gif','view','bookmark','edit_bookmarks()'); - menu.switchbutton - (9,3,'anot.gif','anno-','tations','annotate()'); - $hwkadd - } - - function LONCAPAstale() { - menu=window.open("$nothing","LONCAPAmenu","",false); - menu.currentStale=1; - if (menu.reloadURL!='' && menu.reloadURL!= null) { - menu.switchbutton - (3,1,'reload.gif','return','location','go(reloadURL)'); - } - menu.clearbut(7,1); - menu.clearbut(7,2); - menu.clearbut(7,3); - menu.menucltim=menu.setTimeout( - 'clearbut(2,1);clearbut(2,3);clearbut(8,1);clearbut(8,2);clearbut(8,3);'+ - 'clearbut(9,1);clearbut(9,2);clearbut(9,3);clearbut(6,3)', - 2000); - - } - -// END LON-CAPA Internal - -ENDREGTHIS - - } else { - $result = (< -// BEGIN LON-CAPA Internal - - function LONCAPAreg() { - menu=window.open("$nothing","LONCAPAmenu","",false); - $timesync - 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 - -ENDDONOTREGTHIS - } - return $result; -} - -sub loadevents() { - return 'LONCAPAreg();'; -} - -sub unloadevents() { - return 'LONCAPAstale();'; -} - sub printalltags { my $temp; foreach $temp (sort keys %Apache::lonxml::alltags) { @@ -524,6 +388,9 @@ sub xmlparse { my ($request,$target,$content_file_string,$safeinit,%style_for_target) = @_; &setup_globals($request,$target); + &Apache::inputtags::initialize_inputtags(); + &Apache::outputtags::initialize_outputtags(); + &Apache::edit::initialize_edit(); # # do we have a course style file? # @@ -589,18 +456,30 @@ sub htmlclean { } sub latex_special_symbols { - my ($current_token,$stack,$parstack)=@_; - $current_token=~s/\\/\\char92 /g; - $current_token=~s/\^/\\char94 /g; - $current_token=~s/\~/\\char126 /g; - $current_token=~s/(&[^a-z\#])/\\$1/g; - $current_token=~s/([^&])\#/$1\\#/g; - $current_token=~s/(\$|_|{|})/\\$1/g; - $current_token=~s/\\char92 /\\texttt{\\char92}/g; - $current_token=~s/>/\$>\$/g; #more - $current_token=~s//\$>\$/g; #more + $current_token=~s/[1]; if ($token->[0] eq 'C' && $target eq 'tex') { - $text = '%'.$text; - $text =~ s/[\n\r]//g; + $text = '%'.$text."\n"; } $result.=$text; } @@ -630,15 +508,12 @@ sub inner_xmlparse { # add parameters list to another stack push (@$parstack,&parstring($token)); &increasedepth($token); - if (exists $$style_for_target{$token->[1]}) { - if ($Apache::lonxml::redirection) { - $Apache::lonxml::outputstack['-1'] .= - &recurse($$style_for_target{$token->[1]},$target,$safeeval, - $style_for_target,@$parstack); - } else { - $finaloutput .= &recurse($$style_for_target{$token->[1]},$target, - $safeeval,$style_for_target,@$parstack); - } + if ($Apache::lonxml::usestyle && + exists($$style_for_target{$token->[1]})) { + $Apache::lonxml::usestyle=0; + my $string=$$style_for_target{$token->[1]}. + ''; + &Apache::lonxml::newparser($pars,\$string); } else { $result = &callsub("start_$token->[1]", $target, $token, $stack, $parstack, $pars, $safeeval, $style_for_target); @@ -656,16 +531,12 @@ sub inner_xmlparse { } } - if (exists($$style_for_target{'/'."$token->[1]"})) { - if ($Apache::lonxml::redirection) { - $Apache::lonxml::outputstack['-1'] .= - &recurse($$style_for_target{'/'."$token->[1]"}, - $target,$safeeval,$style_for_target,@$parstack); - } else { - $finaloutput .= &recurse($$style_for_target{'/'."$token->[1]"}, - $target,$safeeval,$style_for_target, - @$parstack); - } + if ($Apache::lonxml::usestyle && + exists($$style_for_target{'/'."$token->[1]"})) { + $Apache::lonxml::usestyle=0; + my $string=$$style_for_target{'/'.$token->[1]}. + ''; + &Apache::lonxml::newparser($pars,\$string); } else { $result = &callsub("end_$token->[1]", $target, $token, $stack, $parstack, $pars,$safeeval, $style_for_target); @@ -701,9 +572,11 @@ sub inner_xmlparse { if ($token->[0] eq 'E') { &end_tag($stack,$parstack,$token); } + } + if ($#$pars > -1) { + pop @$pars; + pop @Apache::lonxml::pwd; } - pop @$pars; - pop @Apache::lonxml::pwd; } # if ($target eq 'meta') { @@ -713,82 +586,10 @@ sub inner_xmlparse { if (($ENV{'QUERY_STRING'}) && ($target eq 'web')) { $finaloutput=&afterburn($finaloutput); - } + } return $finaloutput; } -sub recurse { - my @innerstack = (); - my @innerparstack = (); - my ($newarg,$target,$safeeval,$style_for_target,@parstack) = @_; - my @pat = (); - &newparser(\@pat,\$newarg); - my $tokenpat; - my $partstring = ''; - my $output=''; - my $decls=''; - &Apache::lonxml::debug("Recursing"); - while ( $#pat > -1 ) { - while ($tokenpat = $pat[$#pat]->get_token) { - if (($tokenpat->[0] eq 'T') || ($tokenpat->[0] eq 'C') || ($tokenpat->[0] eq 'D') ) { - if ($metamode<1) { $partstring=$tokenpat->[1]; } - } elsif ($tokenpat->[0] eq 'PI') { - if ($metamode<1) { $partstring=$tokenpat->[2]; } - } elsif ($tokenpat->[0] eq 'S') { - push (@innerstack,$tokenpat->[1]); - push (@innerparstack,&parstring($tokenpat)); - &increasedepth($tokenpat); - $partstring = &callsub("start_$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] - && ($#innerstack > -1)) { - my $lasttag=$innerstack[-1]; - if ($tokenpat->[1] =~ /^$lasttag$/i) { - &Apache::lonxml::warning('Using tag </'.$tokenpat->[1].'> as end tag to <'.$innerstack[-1].'>'); - last; - } else { - &Apache::lonxml::warning('Found tag </'.$tokenpat->[1].'> when looking for </'.$innerstack[-1].'> in file'); - &end_tag(\@innerstack,\@innerparstack,$tokenpat); - } - } - $partstring = &callsub("end_$tokenpat->[1]", $target, $tokenpat, - \@innerstack, \@innerparstack, \@pat, - $safeeval, $style_for_target); - } else { - &Apache::lonxml::error("Unknown token event :$tokenpat->[0]:$tokenpat->[1]:"); - } - #pass both the variable to the style tag, and the tag we - #are processing inside the - if ( $partstring ne "" ) { - if ( $#parstack > -1 ) { - if ( $#innerparstack > -1 ) { - $decls= $parstack[$#parstack].$innerparstack[$#innerparstack]; - } else { - $decls= $parstack[$#parstack]; - } - } else { - if ( $#innerparstack > -1 ) { - $decls=$innerparstack[$#innerparstack]; - } else { - $decls=''; - } - } - $output .= &Apache::run::evaluate($partstring,$safeeval,$decls); - $partstring = ''; - } - if ($tokenpat->[0] eq 'E') { pop @innerstack;pop @innerparstack; - &decreasedepth($tokenpat);} - } - pop @pat; - pop @Apache::lonxml::pwd; - } - &Apache::lonxml::debug("Exiting Recursing"); - return $output; -} - sub callsub { my ($sub,$target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; my $currentstring=''; @@ -813,13 +614,13 @@ sub callsub { } if (!$deleted) { if ($space) { - &Apache::lonxml::debug("Calling sub $sub in $space $metamode"); + #&Apache::lonxml::debug("Calling sub $sub in $space $metamode"); $sub1="$space\:\:$sub"; ($currentstring,$nodefault) = &$sub1($target,$token,$tagstack, $parstack,$parser,$safeeval, $style); } else { - &Apache::lonxml::debug("NOT Calling sub $sub in $space $metamode"); + #&Apache::lonxml::debug("NOT Calling sub $sub in $space $metamode"); if ($metamode <1) { if (defined($token->[4]) && ($metamode < 1)) { $currentstring = $token->[4]; @@ -831,7 +632,7 @@ sub callsub { # &Apache::lonxml::debug("nodefalt:$nodefault:"); if ($currentstring eq '' && $nodefault eq '') { if ($target eq 'edit') { - &Apache::lonxml::debug("doing default edit for $token->[1]"); + #&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') { @@ -841,6 +642,9 @@ sub callsub { if ($token->[0] eq 'S') { $currentstring = $token->[4]; $currentstring.=&Apache::edit::handle_insert(); + } elsif ($token->[0] eq 'E') { + $currentstring = $token->[2]; + $currentstring.=&Apache::edit::handle_insertafter($token->[1]); } else { $currentstring = $token->[2]; } @@ -859,6 +663,7 @@ sub setup_globals { $errorcount=0; $warningcount=0; $Apache::lonxml::default_homework_loaded=0; + $Apache::lonxml::usestyle=1; &init_counter(); @Apache::lonxml::pwd=(); @Apache::lonxml::extlinks=(); @@ -928,6 +733,37 @@ sub init_safespace { $safehole->wrap(\&Math::Cephes::y1,$safeeval,'&y1'); $safehole->wrap(\&Math::Cephes::yn,$safeeval,'&yn'); $safehole->wrap(\&Math::Cephes::yv,$safeeval,'&yv'); + + $safehole->wrap(\&Math::Cephes::bdtr ,$safeeval,'&bdtr' ); + $safehole->wrap(\&Math::Cephes::bdtrc ,$safeeval,'&bdtrc' ); + $safehole->wrap(\&Math::Cephes::bdtri ,$safeeval,'&bdtri' ); + $safehole->wrap(\&Math::Cephes::btdtr ,$safeeval,'&btdtr' ); + $safehole->wrap(\&Math::Cephes::chdtr ,$safeeval,'&chdtr' ); + $safehole->wrap(\&Math::Cephes::chdtrc,$safeeval,'&chdtrc'); + $safehole->wrap(\&Math::Cephes::chdtri,$safeeval,'&chdtri'); + $safehole->wrap(\&Math::Cephes::fdtr ,$safeeval,'&fdtr' ); + $safehole->wrap(\&Math::Cephes::fdtrc ,$safeeval,'&fdtrc' ); + $safehole->wrap(\&Math::Cephes::fdtri ,$safeeval,'&fdtri' ); + $safehole->wrap(\&Math::Cephes::gdtr ,$safeeval,'&gdtr' ); + $safehole->wrap(\&Math::Cephes::gdtrc ,$safeeval,'&gdtrc' ); + $safehole->wrap(\&Math::Cephes::nbdtr ,$safeeval,'&nbdtr' ); + $safehole->wrap(\&Math::Cephes::nbdtrc,$safeeval,'&nbdtrc'); + $safehole->wrap(\&Math::Cephes::nbdtri,$safeeval,'&nbdtri'); + $safehole->wrap(\&Math::Cephes::ndtr ,$safeeval,'&ndtr' ); + $safehole->wrap(\&Math::Cephes::ndtri ,$safeeval,'&ndtri' ); + $safehole->wrap(\&Math::Cephes::pdtr ,$safeeval,'&pdtr' ); + $safehole->wrap(\&Math::Cephes::pdtrc ,$safeeval,'&pdtrc' ); + $safehole->wrap(\&Math::Cephes::pdtri ,$safeeval,'&pdtri' ); + $safehole->wrap(\&Math::Cephes::stdtr ,$safeeval,'&stdtr' ); + $safehole->wrap(\&Math::Cephes::stdtri,$safeeval,'&stdtri'); + +# $safehole->wrap(\&Math::Cephes::new_fract,$safeeval,'&new_fract'); +# $safehole->wrap(\&Math::Cephes::radd,$safeeval,'&radd'); +# $safehole->wrap(\&Math::Cephes::rsub,$safeeval,'&rsub'); +# $safehole->wrap(\&Math::Cephes::rmul,$safeeval,'&rmul'); +# $safehole->wrap(\&Math::Cephes::rdiv,$safeeval,'&rdiv'); +# $safehole->wrap(\&Math::Cephes::euclid,$safeeval,'&euclid'); + $safehole->wrap(\&Math::Random::random_beta,$safeeval,'&math_random_beta'); $safehole->wrap(\&Math::Random::random_chi_square,$safeeval,'&math_random_chi_square'); $safehole->wrap(\&Math::Random::random_exponential,$safeeval,'&math_random_exponential'); @@ -1043,7 +879,7 @@ sub get_all_text_unbalanced { } elsif ($token->[0] eq 'E') { $result.=$token->[2]; } - if ($result =~ /(.*)$tag(.*)/) { + if ($result =~ /(.*)\Q$tag\E(.*)/s) { &Apache::lonxml::debug('Got a winner with leftovers ::'.$2); &Apache::lonxml::debug('Result is :'.$1); $result=$1; @@ -1077,48 +913,81 @@ sub store_counter { sub get_all_text { my($tag,$pars)= @_; + &Apache::lonxml::debug("Got a ".ref($pars)); + my $gotfullstack=1; + if (ref($pars) ne 'ARRAY') { + $gotfullstack=0; + $pars=[$pars]; + } my $depth=0; my $token; my $result=''; if ( $tag =~ m:^/: ) { my $tag=substr($tag,1); -# &Apache::lonxml::debug("have:$tag:"); - while (($depth >=0) && ($token = $pars->get_token)) { -# &Apache::lonxml::debug("e token:$token->[0]:$depth:$token->[1]"); - if (($token->[0] eq 'T')||($token->[0] eq 'C')||($token->[0] eq 'D')) { - $result.=$token->[1]; - } elsif ($token->[0] eq 'PI') { - $result.=$token->[2]; - } elsif ($token->[0] eq 'S') { - if ($token->[1] =~ /^$tag$/i) { $depth++; } - $result.=$token->[4]; - } elsif ($token->[0] eq 'E') { - if ( $token->[1] =~ /^$tag$/i) { $depth--; } - #skip sending back the last end tag - if ($depth > -1) { $result.=$token->[2]; } else { - $pars->unget_token($token); + #&Apache::lonxml::debug("have:$tag:"); + my $top_empty=0; + while (($depth >=0) && ($#$pars > -1) && (!$top_empty)) { + while (($depth >=0) && ($token = $$pars[-1]->get_token)) { + #&Apache::lonxml::debug("e token:$token->[0]:$depth:$token->[1]:".$#$pars.":".$#Apache::lonxml::pwd); + if (($token->[0] eq 'T')||($token->[0] eq 'C')||($token->[0] eq 'D')) { + $result.=$token->[1]; + } elsif ($token->[0] eq 'PI') { + $result.=$token->[2]; + } elsif ($token->[0] eq 'S') { + if ($token->[1] =~ /^$tag$/i) { $depth++; } + $result.=$token->[4]; + } elsif ($token->[0] eq 'E') { + if ( $token->[1] =~ /^$tag$/i) { $depth--; } + #skip sending back the last end tag + if ($depth > -1) { $result.=$token->[2]; } else { + $$pars[-1]->unget_token($token); + } } } + if (($depth >=0) && ($#$pars == 0) ) { $top_empty=1; } + if (($depth >=0) && ($#$pars > 0) ) { + pop(@$pars); + pop(@Apache::lonxml::pwd); + } } - } else { - while ($token = $pars->get_token) { -# &Apache::lonxml::debug("s token:$token->[0]:$depth:$token->[1]"); - if (($token->[0] eq 'T')||($token->[0] eq 'C')||($token->[0] eq 'D')) { - $result.=$token->[1]; - } elsif ($token->[0] eq 'PI') { - $result.=$token->[2]; - } elsif ($token->[0] eq 'S') { - if ( $token->[1] =~ /^$tag$/i) { - $pars->unget_token($token); last; - } else { - $result.=$token->[4]; + if ($top_empty && $depth >= 0) { + #never found the end tag ran out of text, throw error send back blank + &error('Never found end tag for <'.$tag.'>'); + if ($gotfullstack) { + my $newstring=''.$result; + &Apache::lonxml::newparser($pars,\$newstring); } - } elsif ($token->[0] eq 'E') { - $result.=$token->[2]; - } + $result=''; } + } else { + while ($#$pars > -1) { + while ($token = $$pars[-1]->get_token) { + #&Apache::lonxml::debug("s token:$token->[0]:$depth:$token->[1]"); + if (($token->[0] eq 'T')||($token->[0] eq 'C')|| + ($token->[0] eq 'D')) { + $result.=$token->[1]; + } elsif ($token->[0] eq 'PI') { + $result.=$token->[2]; + } elsif ($token->[0] eq 'S') { + if ( $token->[1] =~ /^$tag$/i) { + $$pars[-1]->unget_token($token); last; + } else { + $result.=$token->[4]; + } + } elsif ($token->[0] eq 'E') { + $result.=$token->[2]; + } + } + if (($#$pars > 0) ) { + pop(@$pars); + pop(@Apache::lonxml::pwd); + } else { last; } + } } -# &Apache::lonxml::debug("Exit:$result:"); + if ($result =~ m||) { + $Apache::lonxml::usestyle=1; + } + #&Apache::lonxml::debug("Exit:$result:"); return $result } @@ -1141,7 +1010,7 @@ sub parstring { foreach (@{$token->[3]}) { unless ($_=~/\W/) { my $val=$token->[2]->{$_}; - $val =~ s/([\%\@\\\"])/\\$1/g; + $val =~ s/([\%\@\\\"\'])/\\$1/g; #if ($val =~ m/^[\%\@]/) { $val="\\".$val; } $temp .= "my \$$_=\"$val\";" } @@ -1195,7 +1064,7 @@ sub afterburn { $matchthis=~s/\_+/\\s\+/g; $result=~s/($matchthis)/\$1\<\/a\>/s; $result.=(<<"ENDSCRIPT"); - ENDSCRIPT @@ -1404,27 +1273,49 @@ sub warning { } sub get_param { - my ($param,$parstack,$safeeval,$context) = @_; - if ( ! $context ) { $context = -1; } - my $args =''; - if ( $#$parstack > (-2-$context) ) { $args=$$parstack[$context]; } - if ( ! $args ) { return undef; } - if ( $args =~ /my \$$param=\"/ ) { - return &Apache::run::run("{$args;".'return $'.$param.'}',$safeeval); #' - } else { - return undef; - } + my ($param,$parstack,$safeeval,$context,$case_insensitive) = @_; + if ( ! $context ) { $context = -1; } + my $args =''; + if ( $#$parstack > (-2-$context) ) { $args=$$parstack[$context]; } + if ( ! $args ) { return undef; } + if ( $case_insensitive ) { + if ($args =~ s/(my \$)(\Q$param\E)(=\")/$1.lc($2).$3/ei) { + return &Apache::run::run("{$args;".'return $'.$param.'}', + $safeeval); #' + } else { + return undef; + } + } else { + if ( $args =~ /my \$\Q$param\E=\"/ ) { + return &Apache::run::run("{$args;".'return $'.$param.'}', + $safeeval); #' + } else { + return undef; + } + } } sub get_param_var { - my ($param,$parstack,$safeeval,$context) = @_; + my ($param,$parstack,$safeeval,$context,$case_insensitive) = @_; if ( ! $context ) { $context = -1; } my $args =''; if ( $#$parstack > (-2-$context) ) { $args=$$parstack[$context]; } - if ( $args !~ /my \$$param=\"/ ) { return undef; } + &Apache::lonxml::debug("Args are $args param is $param"); + if ($case_insensitive) { + if (! ($args=~s/(my \$)(\Q$param\E)(=\")/$1.lc($2).$3/ei)) { + return undef; + } + } elsif ( $args !~ /my \$\Q$param\E=\"/ ) { return undef; } my $value=&Apache::run::run("{$args;".'return $'.$param.'}',$safeeval); #' - if ($value =~ /^[\$\@\%]/) { - return &Apache::run::run("return $value",$safeeval,1); + &Apache::lonxml::debug("first run is $value"); + if ($value =~ /^[\$\@\%]\w+$/) { + &Apache::lonxml::debug("doing second"); + my @result=&Apache::run::run("return $value",$safeeval,1); + if (!defined($result[0])) { + return $value + } else { + if (wantarray) { return @result; } else { return $result[0]; } + } } else { return $value; }