'.
+ &mt('Checked out for').' '.$plainname.
+ ''.&mt('User').': '.$tuname.' at '.$tudom. + '
'.&mt('ID').': '.$idhash{$tuname}. + '
'.&mt('CourseID').': '.$tcrsid. + '
'.&mt('Course').': '.$ENV{'course.'.$tcrsid.'.description'}. + '
'.&mt('DocID').': '.$token. + '
'.&mt('Time').': '.&Apache::lonlocal::locallocaltime().'
'; + } else { + return $token; + } } -sub unloadevents() { - return 'LONCAPAstale();'; +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 $temp (sort keys %Apache::lonxml::alltags) { - &Apache::lonxml::debug("$temp -- $Apache::lonxml::alltags{$temp}"); + &Apache::lonxml::debug("$temp -- ". + join(',',@{ $Apache::lonxml::alltags{$temp} })); } } sub xmlparse { - my ($target,$content_file_string,$safeinit,%style_for_target) = @_; - if ($target eq 'meta') { - $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; - $Apache::lonxml::import = 1; - } elsif ($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; - $Apache::lonxml::import = 1; + my ($request,$target,$content_file_string,$safeinit,%style_for_target) = @_; + + &setup_globals($request,$target); + &Apache::inputtags::initialize_inputtags(); + &Apache::outputtags::initialize_outputtags(); + &Apache::edit::initialize_edit(); + &Apache::londefdef::initialize_londefdef(); + +# +# do we have a course style file? +# + + if ($ENV{'request.course.id'} && $ENV{'request.state'} ne 'construct') { + my $bodytext= + $ENV{'course.'.$ENV{'request.course.id'}.'.default_xml_style'}; + if ($bodytext) { + foreach my $file (split(',',$bodytext)) { + my $location=&Apache::lonnet::filelocation('',$file); + my $styletext=&Apache::lonnet::getfile($location); + if ($styletext ne '-1') { + %style_for_target = (%style_for_target, + &Apache::style::styleparser($target,$styletext)); + } + } + } + } elsif ($ENV{'construct.style'} && ($ENV{'request.state'} eq 'construct')) { + my $location=&Apache::lonnet::filelocation('',$ENV{'construct.style'}); + my $styletext=&Apache::lonnet::getfile($location); + if ($styletext ne '-1') { + %style_for_target = (%style_for_target, + &Apache::style::styleparser($target,$styletext)); + } } - #&printalltags(); +#&printalltags(); my @pars = (); - @Apache::lonxml::pwd=(); my $pwd=$ENV{'request.filename'}; $pwd =~ s:/[^/]*$::; &newparser(\@pars,\$content_file_string,$pwd); - my $currentstring = ''; - my $finaloutput = ''; - my $newarg = ''; - my $result; my $safeeval = new Safe; my $safehole = new Safe::Hole; @@ -255,160 +362,207 @@ sub xmlparse { ($target, my @tenta) = split('&&',$target); - my @stack = (); + my @stack = (); my @parstack = (); - &initdepth; - my $token; - while ( $#pars > -1 ) { - while ($token = $pars[$#pars]->get_token) { - if (($token->[0] eq 'T') || ($token->[0] eq 'C') || ($token->[0] eq 'D') ) { - if ($metamode<1) { $result=$token->[1]; } - } elsif ($token->[0] eq 'PI') { - if ($metamode<1) { $result=$token->[2]; } - } elsif ($token->[0] eq 'S') { - # add tag to stack - push (@stack,$token->[1]); - # 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); - } - } else { - $result = &callsub("start_$token->[1]", $target, $token, \@stack, - \@parstack, \@pars, $safeeval, \%style_for_target); - } - } elsif ($token->[0] eq 'E') { - #clear out any tags that didn't end - while ($token->[1] ne $stack[$#stack] && ($#stack > -1)) { - &Apache::lonxml::warning("Unbalanced tags in resource $stack['-1']"); - pop @stack;pop @parstack;&decreasedepth($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); - } + &initdepth(); + &init_alarm(); + my $finaloutput = &inner_xmlparse($target,\@stack,\@parstack,\@pars, + $safeeval,\%style_for_target); - } else { - $result = &callsub("end_$token->[1]", $target, $token, \@stack, - \@parstack, \@pars,$safeeval, \%style_for_target); - } - } else { - &Apache::lonxml::error("Unknown token event :$token->[0]:$token->[1]:"); - } - #evaluate variable refs in result - if ($result ne "") { - if ( $#parstack > -1 ) { - if ($Apache::lonxml::redirection) { - $Apache::lonxml::outputstack['-1'] .= - &Apache::run::evaluate($result,$safeeval,$parstack[$#parstack]); - } else { - $finaloutput .= &Apache::run::evaluate($result,$safeeval, - $parstack[$#parstack]); - } - } else { - $finaloutput .= &Apache::run::evaluate($result,$safeeval,''); - } - $result = ''; - } - if ($token->[0] eq 'E') { - pop @stack;pop @parstack;&decreasedepth($token); - } - } - pop @pars; - pop @Apache::lonxml::pwd; + if ($ENV{'request.uri'}) { + &writeallows($ENV{'request.uri'}); + } + &do_registered_ssi(); + if ($Apache::lonxml::counter_changed) { &store_counter() } + if ($ENV{'form.return_only_error_and_warning_counts'}) { + return "$errorcount:$warningcount"; } - -# if ($target eq 'meta') { -# $finaloutput.=&endredirection; -# } - - if (($ENV{'QUERY_STRING'}) && ($target eq 'web')) { - $finaloutput=&afterburn($finaloutput); - } - return $finaloutput; } +sub htmlclean { + my ($raw,$full)=@_; +# Take care of CRLF etc + + $raw=~s/\r\f/\n/gs; $raw=~s/\f\r/\n/gs; + $raw=~s/\r\n/\n/gs; $raw=~s/\n\r/\n/gs; + $raw=~s/\f/\n/gs; $raw=~s/\r/\n/gs; + $raw=~s/\&\#10\;/\n/gs; $raw=~s/\&\#13\;/\n/gs; + +# Generate empty tags, remove wrong end tags + $raw=~s/\<(br|hr|img|meta|allow|basefont)([^\>\/]*?)\>/\<$1$2 \/\>/gis; + $raw=~s/\<\/(br|hr|img|meta|allow|basefont)\>//gis; + unless ($full) { + $raw=~s/\<[\/]*(body|head|html)\>//gis; + } +# Make standard tags lowercase + foreach ('html','body','head','meta','h1','h2','h3','h4','b','i','m', + 'table','tr','td','th','p','br','hr','img','embed','font', + 'a','strong','center','title','basefont','li','ol','ul', + 'input','select','form','option','script','pre') { + $raw=~s/\<$_\s*\>/\<$_\>/gis; + $raw=~s/\<\/$_\s*\>/<\/$_\>/gis; + $raw=~s/\<$_\s([^\>]*)\>/<$_ $1\>/gis; + } + return $raw; +} -sub recurse { - - my @innerstack = (); - my @innerparstack = (); - my ($newarg,$target,$safeeval,$style_for_target,@parstack) = @_; - my @pat = (); - &newparser(\@pat,\$newarg); - my $tokenpat; - my $partstring = ''; - my $output=''; - my $decls=''; - 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)) { - &Apache::lonxml::warning("Unbalanced tags in resource $innerstack['-1']"); - pop @innerstack;pop @innerparstack;&decreasedepth($tokenpat); - } - $partstring = &callsub("end_$tokenpat->[1]", $target, $tokenpat, - \@innerstack, \@innerparstack, \@pat, - $safeeval, $style_for_target); +sub latex_special_symbols { + my ($string,$where)=@_; + if ($where eq 'header') { + $string =~ s/(\\|_|\^)/ /g; + $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; + } else { + $string=~s/\\/\\ensuremath{\\backslash}/g; + $string=~s/([^\\]|^)\%/$1\\\%/g; + $string=~s/([^\\]|^)\$/$1\\\$/g; + $string=~s/([^\\])\_/$1\\_/g; + $string=~s/\$\$/\$\\\$/g; + $string=~s/\_\_/\_\\\_/g; + $string=~s/\#\#/\#\\\#/g; + $string=~s/([^\\]|^)(\~|\^)/$1\\$2\\strut /g; + $string=~s/(>|<)/\\ensuremath\{$1\}/g; #more or less + $string=&Apache::lonprintout::character_chart($string); + # any & or # leftover should be safe to just escape + $string=~s/([^\\]|^)\&/$1\\\&/g; + $string=~s/([^\\]|^)\#/$1\\\#/g; + $string=~s/\|/\$\\mid\$/g; +#single { or } How to escape? + } + return $string; +} + +sub inner_xmlparse { + my ($target,$stack,$parstack,$pars,$safeeval,$style_for_target)=@_; + my $finaloutput = ''; + my $result; + my $token; + my $dontpop=0; + while ( $#$pars > -1 ) { + while ($token = $$pars['-1']->get_token) { + if (($token->[0] eq 'T') || ($token->[0] eq 'C') ) { + if ($metamode<1) { + my $text=$token->[1]; + if ($token->[0] eq 'C' && $target eq 'tex') { + $text = ''; +# $text = '%'.$text."\n"; + } + $result.=$text; + } + } elsif (($token->[0] eq 'D')) { + if ($metamode<1 && $target eq 'web') { + my $text=$token->[1]; + $result.=$text; + } + } elsif ($token->[0] eq 'PI') { + if ($metamode<1 && $target eq 'web') { + $result=$token->[2]; + } + } elsif ($token->[0] eq 'S') { + # add tag to stack + push (@$stack,$token->[1]); + # add parameters list to another stack + push (@$parstack,&parstring($token)); + &increasedepth($token); + if ($Apache::lonxml::usestyle && + exists($$style_for_target{$token->[1]})) { + $Apache::lonxml::usestyle=0; + my $string=$$style_for_target{$token->[1]}. + '
\n"); - $sub1="$space\:\:$sub"; - $Apache::lonxml::curdepth=join('_',@Apache::lonxml::depthcounter); - ($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) { - if (defined($token->[4]) && ($metamode < 1)) { - $currentstring = $token->[4]; - } else { - $currentstring = $token->[2]; + + my $deleted=0; + $Apache::lonxml::curdepth=join('_',@Apache::lonxml::depthcounter); + if (($token->[0] eq 'S') && ($target eq 'modified')) { + $deleted=&Apache::edit::handle_delete($space,$target,$token,$tagstack, + $parstack,$parser,$safeeval, + $style); + } + if (!$deleted) { + if ($space) { + #&Apache::lonxml::debug("Calling sub $sub in $space $metamode"); + $sub1="$space\:\:$sub"; + ($currentstring,$nodefault) = &$sub1($target,$token,$tagstack, + $parstack,$parser,$safeeval, + $style); + } else { + if ($target eq 'tex') { + # throw away tag name + return ''; + } + #&Apache::lonxml::debug("NOT Calling sub $sub in $space $metamode"); + if ($metamode <1) { + if (defined($token->[4]) && ($metamode < 1)) { + $currentstring = $token->[4]; + } else { + $currentstring = $token->[2]; + } } } - } -# &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]; + # &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(); + } elsif ($token->[0] eq 'E') { + $currentstring = $token->[2]; + $currentstring.=&Apache::edit::handle_insertafter($token->[1]); + } else { + $currentstring = $token->[2]; + } } } } @@ -463,14 +635,72 @@ sub callsub { return $currentstring; } +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; + $Apache::lonxml::usestyle=1; + &init_counter(); + @Apache::lonxml::pwd=(); + @Apache::lonxml::extlinks=(); + @Apache::lonxml::ssi_info=(); + $Apache::lonxml::post_evaluate=1; + $Apache::lonxml::warnings_error_header=''; + if ($target eq 'meta') { + $Apache::lonxml::redirection = 0; + $Apache::lonxml::metamode = 1; + $Apache::lonxml::evaluate = 1; + $Apache::lonxml::import = 0; + } elsif ($target eq 'answer') { + $Apache::lonxml::redirection = 0; + $Apache::lonxml::metamode = 1; + $Apache::lonxml::evaluate = 1; + $Apache::lonxml::import = 1; + } elsif ($target eq 'grade') { + &startredirection; + $Apache::lonxml::metamode = 0; + $Apache::lonxml::evaluate = 1; + $Apache::lonxml::import = 1; + } elsif ($target eq 'modified') { + $Apache::lonxml::redirection = 0; + $Apache::lonxml::metamode = 0; + $Apache::lonxml::evaluate = 0; + $Apache::lonxml::import = 0; + } elsif ($target eq 'edit') { + $Apache::lonxml::redirection = 0; + $Apache::lonxml::metamode = 0; + $Apache::lonxml::evaluate = 0; + $Apache::lonxml::import = 0; + } elsif ($target eq 'analyze') { + $Apache::lonxml::redirection = 0; + $Apache::lonxml::metamode = 0; + $Apache::lonxml::evaluate = 1; + $Apache::lonxml::import = 1; + } else { + $Apache::lonxml::redirection = 0; + $Apache::lonxml::metamode = 0; + $Apache::lonxml::evaluate = 1; + $Apache::lonxml::import = 1; + } +} + sub init_safespace { my ($target,$safeeval,$safehole,$safeinit) = @_; $safeeval->permit("entereval"); $safeeval->permit(":base_math"); $safeeval->permit("sort"); + $safeeval->permit("time"); $safeeval->deny(":base_io"); + $safehole->wrap(\&Apache::scripttag::xmlparse,$safeeval,'&xmlparse'); + $safehole->wrap(\&Apache::outputtags::multipart,$safeeval,'&multipart'); $safehole->wrap(\&Apache::lonnet::EXT,$safeeval,'&EXT'); - + $safehole->wrap(\&Apache::chemresponse::chem_standard_order,$safeeval, + '&chem_standard_order'); + $safehole->wrap(\&Math::Cephes::asin,$safeeval,'&asin'); $safehole->wrap(\&Math::Cephes::acos,$safeeval,'&acos'); $safehole->wrap(\&Math::Cephes::atan,$safeeval,'&atan'); @@ -490,6 +720,37 @@ 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'); @@ -501,7 +762,7 @@ sub init_safespace { $safehole->wrap(\&Math::Random::random_noncentral_f,$safeeval,'&math_random_noncentral_f'); $safehole->wrap(\&Math::Random::random_normal,$safeeval,'&math_random_normal'); $safehole->wrap(\&Math::Random::random_permutation,$safeeval,'&math_random_permutation'); -# $safehole->wrap(\&Math::Random::random_permuted_index,$safeeval,'&math_random_permuted_index'); + $safehole->wrap(\&Math::Random::random_permuted_index,$safeeval,'&math_random_permuted_index'); $safehole->wrap(\&Math::Random::random_uniform,$safeeval,'&math_random_uniform'); $safehole->wrap(\&Math::Random::random_poisson,$safeeval,'&math_random_poisson'); $safehole->wrap(\&Math::Random::random_uniform_integer,$safeeval,'&math_random_uniform_integer'); @@ -511,26 +772,84 @@ sub init_safespace { $safehole->wrap(\&Math::Random::random_set_seed_from_phrase,$safeeval,'&random_set_seed_from_phrase'); $safehole->wrap(\&Math::Random::random_get_seed,$safeeval,'&random_get_seed'); $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::caparesponse::get_sigrange,$safeeval,'&LONCAPA_INTERNAL_get_sigrange'); #need to inspect this class of ops # $safeeval->deny(":base_orig"); + $safeeval->permit("require"); $safeinit .= ';$external::target="'.$target.'";'; - $safeinit .= ';$external::randomseed='.&Apache::lonnet::rndseed().';'; + my $rndseed; + my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser(); + $rndseed=&Apache::lonnet::rndseed($symb,$courseid,$domain,$name); + $safeinit .= ';$external::randomseed="'.$rndseed.'";'; + &Apache::lonxml::debug("Setting rndseed to $rndseed"); &Apache::run::run($safeinit,$safeeval); + +} + +sub default_homework_load { + my ($safeeval)=@_; + &Apache::lonxml::debug('Loading default_homework'); + my $default=&Apache::lonnet::getfile('/home/httpd/html/res/adm/includes/default_homework.lcpm'); + if ($default eq -1) { + &Apache::lonxml::error("Unable to find default_homework.lcpm"); + } else { + &Apache::run::run($default,$safeeval); + $Apache::lonxml::default_homework_loaded=1; + } } +{ + my $alarm_depth; + sub init_alarm { + alarm(0); + $alarm_depth=0; + } + + sub start_alarm { + if ($alarm_depth<1) { + my $old=alarm($Apache::lonnet::perlvar{'lonScriptTimeout'}); + if ($old) { + &Apache::lonxml::error("Cancelled an alarm of $old, this shouldn't occur."); + } + } + $alarm_depth++; + } + + sub end_alarm { + $alarm_depth--; + if ($alarm_depth<1) { alarm(0); } + } +} +my $metamode_was; sub startredirection { - $Apache::lonxml::redirection++; - push (@Apache::lonxml::outputstack, ''); + if (!$Apache::lonxml::redirection) { + $metamode_was=$Apache::lonxml::metamode; + } + $Apache::lonxml::metamode=0; + $Apache::lonxml::redirection++; + push (@Apache::lonxml::outputstack, ''); } sub endredirection { - if (!$Apache::lonxml::redirection) { - &Apache::lonxml::error("Endredirection was called, before a startredirection, perhaps you have unbalanced tags. Some debuging information:".join ":",caller); - return ''; - } - $Apache::lonxml::redirection--; - pop @Apache::lonxml::outputstack; + if (!$Apache::lonxml::redirection) { + &Apache::lonxml::error("Endredirection was called, before a startredirection, perhaps you have unbalanced tags. Some debuging information:".join ":",caller); + return ''; + } + $Apache::lonxml::redirection--; + if (!$Apache::lonxml::redirection) { + $Apache::lonxml::metamode=$metamode_was; + } + pop @Apache::lonxml::outputstack; +} + +sub end_tag { + my ($tagstack,$parstack,$token)=@_; + pop(@$tagstack); + pop(@$parstack); + &decreasedepth($token); } sub initdepth { @@ -539,6 +858,8 @@ sub initdepth { $Apache::lonxml::olddepth=-1; } +my @timers; +my $lasttime; sub increasedepth { my ($token) = @_; $Apache::lonxml::depth++; @@ -546,8 +867,15 @@ sub increasedepth { if ($Apache::lonxml::depthcounter[$Apache::lonxml::depth]==1) { $Apache::lonxml::olddepth=$Apache::lonxml::depth; } + my $time; + if ($Apache::lonxml::debug eq "1") { + push(@timers,[&gettimeofday()]); + $time=&tv_interval($lasttime); + $lasttime=[&gettimeofday()]; + } + my $spacing=' 'x($Apache::lonxml::depth-1); my $curdepth=join('_',@Apache::lonxml::depthcounter); - &Apache::lonxml::debug("s $Apache::lonxml::depth : $Apache::lonxml::olddepth : $curdepth : $token->[1]\n"); + &Apache::lonxml::debug("s$spacing$Apache::lonxml::depth : $Apache::lonxml::olddepth : $curdepth : $token->[1] : $time : \n"); #print "
s $Apache::lonxml::depth : $Apache::lonxml::olddepth : $curdepth : $token->[1]\n"; } @@ -559,138 +887,259 @@ sub decreasedepth { $Apache::lonxml::olddepth=$Apache::lonxml::depth+1; } if ( $Apache::lonxml::depth < -1) { - &Apache::lonxml::warning("Unbalanced tags in resource"); + &Apache::lonxml::warning(&mt("Missing tags, unable to properly run file.")); $Apache::lonxml::depth='-1'; } + my ($timer,$time); + if ($Apache::lonxml::debug eq "1") { + $timer=pop(@timers); + $time=&tv_interval($lasttime); + $lasttime=[&gettimeofday()]; + } + my $spacing=' 'x$Apache::lonxml::depth; my $curdepth=join('_',@Apache::lonxml::depthcounter); - &Apache::lonxml::debug("e $Apache::lonxml::depth : $Apache::lonxml::olddepth : $token->[1] : $curdepth\n"); + &Apache::lonxml::debug("e$spacing$Apache::lonxml::depth : $Apache::lonxml::olddepth : $curdepth : $token->[1] : $time : ".&tv_interval($timer)."\n"); #print "
e $Apache::lonxml::depth : $Apache::lonxml::olddepth : $token->[1] : $curdepth\n"; } -sub get_all_text { +sub get_all_text_unbalanced { +#there is a copy of this in lonpublisher.pm + my($tag,$pars)= @_; + my $token; + my $result=''; + $tag='<'.$tag.'>'; + while ($token = $$pars[-1]->get_token) { + 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') { + $result.=$token->[4]; + } elsif ($token->[0] eq 'E') { + $result.=$token->[2]; + } + if ($result =~ /\Q$tag\E/is) { + ($result,my $redo)=$result =~ /(.*)\Q$tag\E(.*)/is; + #&Apache::lonxml::debug('Got a winner with leftovers ::'.$2); + #&Apache::lonxml::debug('Result is :'.$1); + $redo=$tag.$redo; + &Apache::lonxml::newparser($pars,\$redo); + last; + } + } + return $result +} - my($tag,$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] eq $tag) { $depth++; } - $result.=$token->[4]; - } elsif ($token->[0] eq 'E') { - if ( $token->[1] eq $tag) { $depth--; } - #skip sending back the last end tag - if ($depth > -1) { $result.=$token->[2]; } else { - $pars->unget_token($token); - } - } - } - } 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] eq $tag) { - $pars->unget_token($token); last; - } else { - $result.=$token->[4]; - } - } elsif ($token->[0] eq 'E') { - $result.=$token->[2]; - } - } - } -# &Apache::lonxml::debug("Exit:$result:"); - return $result +sub increment_counter { + my ($increment) = @_; + if (defined($increment) && $increment gt 0) { + $Apache::lonxml::counter+=$increment; + } else { + $Apache::lonxml::counter++; + } + $Apache::lonxml::counter_changed=1; +} + +sub init_counter { + if (defined($ENV{'form.counter'})) { + $Apache::lonxml::counter=$ENV{'form.counter'}; + $Apache::lonxml::counter_changed=0; + } else { + $Apache::lonxml::counter=1; + $Apache::lonxml::counter_changed=1; + } +} + +sub store_counter { + &Apache::lonnet::appenv(('form.counter' => $Apache::lonxml::counter)); + return ''; +} + +sub get_all_text { + my($tag,$pars,$style)= @_; + my $gotfullstack=1; + if (ref($pars) ne 'ARRAY') { + $gotfullstack=0; + $pars=[$pars]; + } + if (ref($style) ne 'HASH') { + $style={}; + } + my $depth=0; + my $token; + my $result=''; + if ( $tag =~ m:^/: ) { + my $tag=substr($tag,1); + #&Apache::lonxml::debug("have:$tag:"); + my $top_empty=0; + while (($depth >=0) && ($#$pars > -1) && (!$top_empty)) { + while (($depth >=0) && ($token = $$pars[-1]->get_token)) { + #&Apache::lonxml::debug("e token:$token->[0]:$depth:$token->[1]:".$#$pars.":".$#Apache::lonxml::pwd); + if (($token->[0] eq 'T')||($token->[0] eq 'C')||($token->[0] eq 'D')) { + $result.=$token->[1]; + } elsif ($token->[0] eq 'PI') { + $result.=$token->[2]; + } elsif ($token->[0] eq 'S') { + if ($token->[1] =~ /^\Q$tag\E$/i) { $depth++; } + if ($token->[1] =~ /^LONCAPA_INTERNAL_TURN_STYLE_ON$/) { $Apache::lonxml::usestyle=1; } + if ($token->[1] =~ /^LONCAPA_INTERNAL_TURN_STYLE_OFF$/) { $Apache::lonxml::usestyle=0; } + $result.=$token->[4]; + } elsif ($token->[0] eq 'E') { + if ( $token->[1] =~ /^\Q$tag\E$/i) { $depth--; } + #skip sending back the last end tag + if ($depth == 0 && exists($$style{'/'.$token->[1]}) && $Apache::lonxml::usestyle) { + my $string= + '
'. + &HTML::Entities::encode($result,'<>&"'). + ''); + if ($gotfullstack) { + my $newstring=''.$result; + &Apache::lonxml::newparser($pars,\$newstring); + } + $result=''; + } + } else { + while ($#$pars > -1) { + while ($token = $$pars[-1]->get_token) { + #&Apache::lonxml::debug("s token:$token->[0]:$depth:$token->[1]"); + if (($token->[0] eq 'T')||($token->[0] eq 'C')|| + ($token->[0] eq 'D')) { + $result.=$token->[1]; + } elsif ($token->[0] eq 'PI') { + $result.=$token->[2]; + } elsif ($token->[0] eq 'S') { + if ( $token->[1] =~ /^\Q$tag\E$/i) { + $$pars[-1]->unget_token($token); last; + } else { + $result.=$token->[4]; + } + if ($token->[1] =~ /^LONCAPA_INTERNAL_TURN_STYLE_ON$/) { $Apache::lonxml::usestyle=1; } + if ($token->[1] =~ /^LONCAPA_INTERNAL_TURN_STYLE_OFF$/) { $Apache::lonxml::usestyle=0; } + } elsif ($token->[0] eq 'E') { + $result.=$token->[2]; + } + } + if (($#$pars > 0) ) { + pop(@$pars); + pop(@Apache::lonxml::pwd); + } else { last; } + } + } + #&Apache::lonxml::debug("Exit:$result:"); + return $result } sub newparser { my ($parser,$contentref,$dir) = @_; - push (@$parser,HTML::TokeParser->new($contentref)); + push (@$parser,HTML::LCParser->new($contentref)); $$parser['-1']->xml_mode('1'); if ( $dir eq '' ) { push (@Apache::lonxml::pwd, $Apache::lonxml::pwd[$#Apache::lonxml::pwd]); } else { push (@Apache::lonxml::pwd, $dir); } -# &Apache::lonxml::debug("pwd:$#Apache::lonxml::pwd"); -# &Apache::lonxml::debug("pwd:$Apache::lonxml::pwd[$#Apache::lonxml::pwd]"); } sub parstring { my ($token) = @_; my $temp=''; - map { + foreach (@{$token->[3]}) { unless ($_=~/\W/) { my $val=$token->[2]->{$_}; - $val =~ s/([\%\@\\])/\\$1/g; + $val =~ s/([\%\@\\\"\'])/\\$1/g; + $val =~ s/(\$[^{a-zA-Z_])/\\$1/g; + $val =~ s/(\$)$/\\$1/; #if ($val =~ m/^[\%\@]/) { $val="\\".$val; } - $temp .= "my \$$_=\"$val\";" + $temp .= "my \$$_=\"$val\";"; } - } @{$token->[3]}; + } return $temp; } sub writeallows { + unless ($#extlinks>=0) { return; } my $thisurl='/res/'.&Apache::lonnet::declutter(shift); + if ($ENV{'httpref.'.$thisurl}) { + $thisurl=$ENV{'httpref.'.$thisurl}; + } my $thisdir=$thisurl; $thisdir=~s/\/[^\/]+$//; my %httpref=(); - map { + foreach (@extlinks) { $httpref{'httpref.'. - &Apache::lonnet::hreflocation($thisdir,$_)}=$thisurl; } @extlinks; + &Apache::lonnet::hreflocation($thisdir,$_)}=$thisurl; + } + @extlinks=(); &Apache::lonnet::appenv(%httpref); } +sub register_ssi { + my ($url,%form)=@_; + push (@Apache::lonxml::ssi_info,{'url'=>$url,'form'=>\%form}); + return ''; +} + +sub do_registered_ssi { + foreach my $info (@Apache::lonxml::ssi_info) { + my %form=%{ $info->{'form'}}; + my $url=$info->{'url'}; + &Apache::lonnet::ssi($url,%form); + } +} # # Afterburner handles anchors, highlights and links # sub afterburn { my $result=shift; - map { - my ($name, $value) = split(/=/,$_); - $value =~ tr/+/ /; - $value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg; - if (($name eq 'highlight')||($name eq 'anchor')||($name eq 'link')) { - unless ($ENV{'form.'.$name}) { - $ENV{'form.'.$name}=$value; - } - } - } (split(/&/,$ENV{'QUERY_STRING'})); + &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'}, + ['highlight','anchor','link']); if ($ENV{'form.highlight'}) { - map { + foreach (split(/\,/,$ENV{'form.highlight'})) { my $anchorname=$_; my $matchthis=$anchorname; $matchthis=~s/\_+/\\s\+/g; - $result=~s/($matchthis)/\$1\<\/font\>/gs; - } split(/\,/,$ENV{'form.highlight'}); + $result=~s/(\Q$matchthis\E)/\$1\<\/font\>/gs; + } } if ($ENV{'form.link'}) { - map { + foreach (split(/\,/,$ENV{'form.link'})) { my ($anchorname,$linkurl)=split(/\>/,$_); my $matchthis=$anchorname; $matchthis=~s/\_+/\\s\+/g; - $result=~s/($matchthis)/\$1\<\/a\>/gs; - } split(/\,/,$ENV{'form.link'}); + $result=~s/(\Q$matchthis\E)/\$1\<\/a\>/gs; + } } if ($ENV{'form.anchor'}) { my $anchorname=$ENV{'form.anchor'}; my $matchthis=$anchorname; $matchthis=~s/\_+/\\s\+/g; - $result=~s/($matchthis)/\$1\<\/a\>/s; + $result=~s/(\Q$matchthis\E)/\$1\<\/a\>/s; $result.=(<<"ENDSCRIPT"); - ENDSCRIPT @@ -700,144 +1149,424 @@ ENDSCRIPT sub storefile { my ($file,$contents)=@_; + &Apache::lonnet::correct_line_ends(\$contents); if (my $fh=Apache::File->new('>'.$file)) { print $fh $contents; $fh->close(); + return 1; + } else { + &warning("Unable to save file $file"); + return 0; } } -sub inserteditinfo { - my ($result,$filecontents)=@_; - unless ($filecontents) { - $filecontents=(<
'; + my $xml_help = ''; + my $initialize=''; + if ($filetype eq 'html') { + my $addbuttons=&Apache::lonhtmlcommon::htmlareaaddbuttons(); + $initialize=&Apache::lonhtmlcommon::htmlareaheaders(). + &Apache::lonhtmlcommon::spellheader(); + if (!&Apache::lonhtmlcommon::htmlareablocked() && + &Apache::lonhtmlcommon::htmlareabrowser()) { + $initialize.=(<
'; + my $cleanbut = ''; + if ($filetype eq 'html') { + $cleanbut=''; + } + my $titledisplay=&display_title(); + my %lt=&Apache::lonlocal::texthash('st' => 'Save this', + 'vi' => 'View', + 'ed' => 'Edit'); + my $buttons=(<
'. + $displayfile. + '
'; + $result=&inserteditinfo($result,$filecontents,$filetype); + } + } + if ($filetype eq 'html') { writeallows($request->uri); } + + + &Apache::lonxml::add_messages(\$result); + $request->print($result); + + return OK; +} + +sub display_title { + my $result; + if ($ENV{'request.state'} eq 'construct') { + my $title=&Apache::lonnet::gettitle(); + if (!defined($title) || $title eq '') { + $title = $ENV{'request.filename'}; + $title = substr($title, rindex($title, '/') + 1); + } + $result = ""; + } + return $result; } - + sub debug { - if ($Apache::lonxml::debug eq 1) { - print "DEBUG:".$_[0]."\n"; - } + if ($Apache::lonxml::debug eq "1") { + $|=1; + my $request=$Apache::lonxml::request; + if (!$request) { $request=Apache->request; } + $request->print('
DEBUG:'.&HTML::Entities::encode($_[0],'<>&"')."\n"); + #&Apache::lonnet::logthis($_[0]); + } } -sub error { - 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.
"; - #notify author - &Apache::lonmsg::author_res_msg($ENV{'request.filename'},$_[0]); - #notify course - if ( $ENV{'request.course.id'} ) { - my $users=$ENV{'course.'.$ENV{'request.course.id'}.'.comment.email'}; - foreach my $user (split /\,/, $users) { - ($user,my $domain) = split /:/, $user; - &Apache::lonmsg::user_normal_msg($user,$domain,"Error in $ENV{'request.filename'}",$_[0]); - } +sub show_error_warn_msg { + if ($ENV{'request.filename'} eq '/home/httpd/html/res/lib/templates/simpleproblem.problem' && + &Apache::lonnet::allowed('mdc',$ENV{'request.course.id'})) { + return 1; } + return (($Apache::lonxml::debug eq 1) || + ($ENV{'request.state'} eq 'construct') || + ($Apache::lonhomework::browse eq 'F' + && + $ENV{'form.show_errors'} eq 'on')); +} - #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]); - } +sub error { + $errorcount++; + if ( &show_error_warn_msg() ) { + # If printing in construction space, put the error inside + push(@Apache::lonxml::error_messages, + $Apache::lonxml::warnings_error_header. + "ERROR:".join("
\n",@_)."
\n"); + $Apache::lonxml::warnings_error_header=''; + } else { + my $errormsg; + my ($symb)=&Apache::lonnet::symbread(); + if ( !$symb ) { + #public or browsers + $errormsg=&mt("An error occured while processing this resource. The author has been notified."); + } + #notify author + &Apache::lonmsg::author_res_msg($ENV{'request.filename'},join('
',@_)); + #notify course + if ( $symb && $ENV{'request.course.id'} ) { + my (undef,%users)=&Apache::lonfeedback::decide_receiver(undef,0,1,1,1); + my $declutter=&Apache::lonnet::declutter($ENV{'request.filename'}); + my @userlist; + foreach (keys %users) { + my ($user,$domain) = split(/:/, $_); + push(@userlist,"$user\@$domain"); + &Apache::lonmsg::user_normal_msg($user,$domain, + "Error [$declutter]",join('
',@_)); + } + if ($ENV{'request.role.adv'}) { + $errormsg=&mt("An error occured while processing this resource. The course personnel ([_1]) and the author have been notified.",join(', ',@userlist)); + } else { + $errormsg=&mt("An error occured while processing this resource. The instructor has been notified."); + } + } + push(@Apache::lonxml::error_messages,"$errormsg
"); + } } sub warning { - if ($ENV{'request.state'} eq 'construct') { - print "WARNING:".$_[0]."
\n"; - } + $warningcount++; + + if ($ENV{'form.grade_target'} ne 'tex') { + if ( &show_error_warn_msg() ) { + my $request=$Apache::lonxml::request; + if (!$request) { $request=Apache->request; } + push(@Apache::lonxml::warning_messages, + $Apache::lonxml::warnings_error_header. + "WARNING:".join('
',@_)."
\n"); + $Apache::lonxml::warnings_error_header=''; + } + } +} + +sub info { + if ($ENV{'form.grade_target'} ne 'tex' + && $ENV{'request.state'} eq 'construct') { + push(@Apache::lonxml::info_messages,join('
',@_)."
\n"); + } +} + +sub message_location { + return '__LONCAPA_INTERNAL_MESSAGE_LOCATION__'; +} + +sub add_messages { + my ($msg)=@_; + my $result=join(' ', + @Apache::lonxml::info_messages, + @Apache::lonxml::error_messages, + @Apache::lonxml::warning_messages); + undef(@Apache::lonxml::info_messages); + undef(@Apache::lonxml::error_messages); + undef(@Apache::lonxml::warning_messages); + $$msg=~s/__LONCAPA_INTERNAL_MESSAGE_LOCATION__/$result/; + $$msg=~s/__LONCAPA_INTERNAL_MESSAGE_LOCATION__//g; } sub get_param { - my ($param,$parstack,$safeeval,$context) = @_; + my ($param,$parstack,$safeeval,$context,$case_insensitive) = @_; + if ( ! $context ) { $context = -1; } + my $args =''; + if ( $#$parstack > (-2-$context) ) { $args=$$parstack[$context]; } + if ( ! $Apache::lonxml::usestyle ) { + $args=$Apache::lonxml::style_values.$args; + } + 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,$context,$case_insensitive) = @_; if ( ! $context ) { $context = -1; } my $args =''; if ( $#$parstack > (-2-$context) ) { $args=$$parstack[$context]; } - return &Apache::run::run("{$args;".'return $'.$param.'}',$safeeval); #' + if ( ! $Apache::lonxml::usestyle ) { + $args=$Apache::lonxml::style_values.$args; + } + &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); #' + &Apache::lonxml::debug("first run is $value"); + if ($value =~ /^[\$\@\%][a-zA-Z_]\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; + } } sub register_insert { @@ -849,14 +1578,19 @@ sub register_insert { my $line = $data[$i]; if ( $line =~ /^\#/ || $line =~ /^\s*\n/) { next; } if ( $line =~ /TABLE/ ) { last; } - my ($tag,$descrip,$color,$function,$show) = split(/,/, $line); - $insertlist{"$tagnum.tag"} = $tag; - $insertlist{"$tagnum.description"} = $descrip; - $insertlist{"$tagnum.color"} = $color; - $insertlist{"$tagnum.function"} = $function; - $insertlist{"$tagnum.show"}= $show; - $insertlist{"$tag.num"}=$tagnum; - $tagnum++; + my ($tag,$descrip,$color,$function,$show,$helpfile,$helpdesc) = split(/,/, $line); + if ($tag) { + $insertlist{"$tagnum.tag"} = $tag; + $insertlist{"$tagnum.description"} = $descrip; + $insertlist{"$tagnum.color"} = $color; + $insertlist{"$tagnum.function"} = $function; + if (!defined($show)) { $show='yes'; } + $insertlist{"$tagnum.show"}= $show; + $insertlist{"$tagnum.helpfile"} = $helpfile; + $insertlist{"$tagnum.helpdesc"} = $helpdesc; + $insertlist{"$tag.num"}=$tagnum; + $tagnum++; + } } $i++; #skipping TABLE line $tagnum = 0; @@ -864,7 +1598,7 @@ sub register_insert { my $line = $data[$i]; my ($mnemonic,@which) = split(/ +/,$line); my $tag = $insertlist{"$tagnum.tag"}; - for (my $j=0;$j <$#which;$j++) { + for (my $j=0;$j <=$#which;$j++) { if ( $which[$j] eq 'Y' ) { if ($insertlist{"$j.show"} ne 'no') { push(@{ $insertlist{"$tag.which"} },$j); @@ -874,6 +1608,76 @@ sub register_insert { $tagnum++; } } + +sub description { + my ($token)=@_; + my $tagnum; + my $tag=$token->[1]; + foreach my $namespace (reverse @Apache::lonxml::namespace) { + my $testtag=$namespace.'::'.$tag; + $tagnum=$insertlist{"$testtag.num"}; + if (defined($tagnum)) { last; } + } + if (!defined ($tagnum)) { $tagnum=$Apache::lonxml::insertlist{"$tag.num"}; } + return $insertlist{$tagnum.'.description'}; +} + +# Returns a list containing the help file, and the description +sub helpinfo { + my ($token)=@_; + my $tagnum; + my $tag=$token->[1]; + foreach my $namespace (reverse @Apache::lonxml::namespace) { + my $testtag=$namespace.'::'.$tag; + $tagnum=$insertlist{"$testtag.num"}; + if (defined($tagnum)) { last; } + } + if (!defined ($tagnum)) { $tagnum=$Apache::lonxml::insertlist{"$tag.num"}; } + return ($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__