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Diff for /loncom/homework/optionresponse.pm between versions 1.125 and 1.134

version 1.125, 2005/04/07 06:56:22 version 1.134, 2006/03/15 00:08:53
Line 114  sub start_foilgroup { Line 114  sub start_foilgroup {
         <td>Delete an Option:          <td>Delete an Option:
   <select name="$Apache::lonxml::curdepth.deleteopt">$optionlist</select>    <select name="$Apache::lonxml::curdepth.deleteopt">$optionlist</select>
 ENDTABLE  ENDTABLE
       $result.= &Apache::edit::checked_arg('Print options:','texoptions',
    [ ['nochoice','Don\'t show option list'] ]
    ,$token);
     $result.= &Apache::edit::end_row();      $result.= &Apache::edit::end_row();
     $result.= &Apache::edit::start_spanning_row();      $result.= &Apache::edit::start_spanning_row();
     $result.= $insertlist.'<br />';      $result.= $insertlist.'<br />';
Line 137  ENDTABLE Line 140  ENDTABLE
       }        }
       $optchanged=1;        $optchanged=1;
     }      }
     if ($optchanged) {      my $rebuildtag = &Apache::edit::get_new_args($token,$parstack,$safeeval,
    ('texoptions'));
       if ($optchanged || $rebuildtag ) {
       $result = "<foilgroup options=\"(";        $result = "<foilgroup options=\"(";
       foreach my $option (@options) {        foreach my $option (@options) {
  $option=~s/\'/\\\'/g;   $option=~s/\'/\\\'/g;
Line 145  ENDTABLE Line 150  ENDTABLE
  $result .="'".$option."',";   $result .="'".$option."',";
       }        }
       chop $result;        chop $result;
       $result.=')">';        $result.=')" ';
         $result .= 'texoptions="'.$token->[2]{'texoptions'}.'" ';
         $result .= '>';
     } # else nothing changed so just use the default mechanism      } # else nothing changed so just use the default mechanism
   }    }
   if ($target eq 'tex' and $Apache::lonhomework::type ne 'exam') {    if ($target eq 'tex' and $Apache::lonhomework::type ne 'exam') {
Line 165  sub end_foilgroup { Line 172  sub end_foilgroup {
     my $name;      my $name;
     my @opt;      my @opt;
     eval '@opt ='.&Apache::lonxml::get_param('options',$parstack,$safeeval);      eval '@opt ='.&Apache::lonxml::get_param('options',$parstack,$safeeval);
       &Apache::lonxml::debug("options:".join(':',@opt));
   
     my $TeXlayout=&Apache::lonxml::get_param('TeXlayout',$parstack,$safeeval,      my $TeXlayout=&Apache::lonxml::get_param('TeXlayout',$parstack,$safeeval,
      -2,0);       -2,0);
     if ($target eq 'tex' && $tex_option_switch eq 'nochoice') {@opt=();}      if ($target eq 'tex' && $tex_option_switch eq 'nochoice') {@opt=();}
Line 293  sub whichfoils { Line 302  sub whichfoils {
 }  }
   
 sub displayanswers {  sub displayanswers {
   my ($max,$randomize,@opt)=@_;      my ($max,$randomize,@opt)=@_;
   if (!defined(@{ $Apache::response::foilgroup{'names'} })) {return;}      if (!defined(@{ $Apache::response::foilgroup{'names'} })) {return;}
   my @names = @{ $Apache::response::foilgroup{'names'} };      my @names = @{ $Apache::response::foilgroup{'names'} };
   my @whichopt = &whichfoils($max,$randomize);      my @whichopt = &whichfoils($max,$randomize);
   my $result=&Apache::response::answer_header('optionresponse');      my $result;
   foreach my $name (@whichopt) {      if ($Apache::lonhomework::type eq 'exam') {
     $result.=&Apache::response::answer_part('optionresponse',   my $i = 0;
      $Apache::response::foilgroup{$name.'.value'})   my %opt = map { ($_,$i++) } @opt;
   }  
   $result.=&Apache::response::answer_footer('optionresponse');   $i = 0;
   return $result;   my @alphabet = ('A'..'Z');
    foreach my $name (@whichopt) {
       $result.=&Apache::response::answer_header('optionresponse',$i++);
       $result.=&Apache::response::answer_part('optionresponse',
       $alphabet[$opt{$Apache::response::foilgroup{$name.'.value'}}]);
       $result.=&Apache::response::answer_part('optionresponse',
       $Apache::response::foilgroup{$name.'.value'});
       $result.=&Apache::response::answer_footer('optionresponse');
    }
       } else {
    $result=&Apache::response::answer_header('optionresponse');
    foreach my $name (@whichopt) {
       $result.=&Apache::response::answer_part('optionresponse',
       $Apache::response::foilgroup{$name.'.value'});
    }
    $result.=&Apache::response::answer_footer('optionresponse');
       }
       return $result;
 }  }
   
 sub check_for_invalid {  sub check_for_invalid {
Line 358  sub displayfoils { Line 384  sub displayfoils {
  if ($text=~/^\s*$/) {   if ($text=~/^\s*$/) {
     $text=$value.$text;      $text=$value.$text;
  } else {   } else {
     $text=$value.': '.$text;      $text='<b>'.$value.':</b> '.$text;
  }   }
     } else {      } else {
  $text='&#149;'.$text;   $text='&#149;'.$text;
Line 385  sub displayfoils { Line 411  sub displayfoils {
       }        }
       my $lastopt=$lastresponse{$name};        my $lastopt=$lastresponse{$name};
       my $optionlist="<option></option>\n";        my $optionlist="<option></option>\n";
       my $option;        foreach my $option (@opt) {
       foreach $option (@opt) {    my $escopt=&HTML::Entities::encode($option,'\'"&<>');
  if ($option eq $lastopt) {    if ($option eq $lastopt) {
   $optionlist.="<option selected=\"on\">$option</option>\n";        $optionlist.="<option value='".$escopt."' selected=\"selected\">$option</option>\n";
  } else {    } else {
   $optionlist.="<option>$option</option>\n";        $optionlist.="<option value='".$escopt."'>$option</option>\n";
  }    }
       }        }
       if ($target ne 'tex') {        if ($target ne 'tex') {
   if ($Apache::lonhomework::type ne 'exam') {    if ($Apache::lonhomework::type ne 'exam') {
Line 455  sub displayfoils { Line 481  sub displayfoils {
 }  }
   
   
   #  Correct a single option list element.
   #  - For embedded <display></display> tags,
   #    we pass literally the stuff between them.
   #  - For everything else, we run through latex_special_symbols
   #    so that any symbols that have meaning to LaTeX will be
   #    correctly escaped.
   #
   sub correct_option {
       my $option = shift;
   
   
       # There's probably a beter way with perl if I was
       # more of a regexp wiz..(RF).
   
       my $strlen = length($option);
       my $here   = 0; # Where to start searching for <display></display>
       my $result =""; # The return string is built here.
       
       while ($here < $strlen) {
    # look for an opening <display> tag:
   
    my $openloc = index($option, "<display>", $here);
    if ($openloc == -1) {
       # No more... operate with latex_special_symbols on
       # the rest of the string.
   
       $result .= &Apache::lonxml::latex_special_symbols(substr($option, $here));
       return $result;
    } else {
       # Need to pass the string up to the <display> tag 
       # through l_s_s ...
       $result .= &Apache::lonxml::latex_special_symbols(substr($option, $here, $openloc-$here));
    }
    # look for the closing </display> tag...
    # We're a bit stupid..or tolerant...
    # in that if the user forgets the </display> tag
    # we infer they intended one at the end of the option.
    $openloc += 9; # 9 chars in <display>
   
    my $closeloc = index($option, "</display>", $openloc); # 9 chars in <display>
    if ($closeloc == -1) {
       $closeloc = $strlen + 9;                             # 10chars in </display> faked off end. 
    }
    #  Pass from openloc through closeloc without any interpretation:
   
    &Apache::lonnet::logthis("Segment inside display: $openloc through $closeloc");
    $result .= substr($option, $openloc, $closeloc - $openloc);
    $here    = $closeloc + 10;                               # Next search is after the </display> 
       }
   
       return $result;
   
       # return &Apache::lonxml::latex_special_symbols($option);
   }
   
   #  Correct the option list elements so that if there
   #  are special symbosl that have meaning to LaTeX
   #  they get fixed up to display correctly.
   
 sub optionlist_correction {  sub optionlist_correction {
     my ($TeXlayout,@options) = @_;      my ($TeXlayout,@options) = @_;
     my $texoptionlist='\\item [] Choices: ';      my $texoptionlist='\\item [] Choices: ';
Line 462  sub optionlist_correction { Line 547  sub optionlist_correction {
     if (scalar(@options) > 0) {      if (scalar(@options) > 0) {
  foreach my $option (@options) {   foreach my $option (@options) {
     $texoptionlist.='{\bf '.      $texoptionlist.='{\bf '.
  &Apache::lonxml::latex_special_symbols($option).   &correct_option($option).
  '}';   '}';
     if ($TeXlayout eq 'vertical') {      if ($TeXlayout eq 'vertical') {
  $texoptionlist.=' \vskip 0 mm ',   $texoptionlist.=' \vskip 0 mm ',
Line 530  sub bubbles { Line 615  sub bubbles {
     $head.='lr';      $head.='lr';
  } else {   } else {
     $line=~s/\&\s*$//;      $line=~s/\&\s*$//;
     $result.='\vskip -2 mm\noindent\begin{tabular}{'.$head.'}'.$line.'\\\\\end{tabular}\vskip 0 mm';      $result.='\vskip -2 mm\noindent\setlength{\tabcolsep}{2 mm}\begin{tabular}{'.$head.'}'.$line.'\\\\\end{tabular}\vskip 0 mm';
     $line = '\hskip -1 mm {\small \textbf{'.$alphabet[$ind].'}}$\bigcirc$\hskip -1 mm & \hskip -3 mm {\small '.$opt[$ind].'} & ';;      $line = '\hskip -1 mm {\small \textbf{'.$alphabet[$ind].'}}$\bigcirc$\hskip -1 mm & \hskip -3 mm {\small '.$opt[$ind].'} & ';;
     $head ='lr';      $head ='lr';
     $current_length = (length($opt[$ind])+length($alphabet[$ind]))*2;      $current_length = (length($opt[$ind])+length($alphabet[$ind]))*2;
Line 630  sub end_foil { Line 715  sub end_foil {
     if ($value ne 'unused') {      if ($value ne 'unused') {
       my $name = &Apache::lonxml::get_param('name',$parstack,$safeeval);        my $name = &Apache::lonxml::get_param('name',$parstack,$safeeval);
       &Apache::lonxml::debug("Got a name of :$name:");        &Apache::lonxml::debug("Got a name of :$name:");
       if (!$name) {        if ($name eq "") {
   &Apache::lonxml::error("Foils without names exist. This can cause problems to malfunction.");    &Apache::lonxml::warning("Foils without names exist. This can cause problems to malfunction.");
   $name=$Apache::lonxml::curdepth;    $name=$Apache::lonxml::curdepth;
       }        }
       &Apache::lonxml::debug("Using a name of :$name:");        &Apache::lonxml::debug("Using a name of :$name:");
Removed from v.1.125  
changed lines
  Added in v.1.134

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