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Diff for /loncom/xml/lonxml.pm between versions 1.17 and 1.23

version 1.17, 2000/08/08 19:34:29 version 1.23, 2000/10/05 19:30:14
Line 26  use Apache::run; Line 26  use Apache::run;
 use Apache::londefdef;  use Apache::londefdef;
 use Apache::scripttag;  use Apache::scripttag;
 #==================================================   Main subroutine: xmlparse    #==================================================   Main subroutine: xmlparse  
   @Apache::lonxml::pwd=();
 sub xmlparse {  sub xmlparse {
   
  my ($target,$content_file_string,%style_for_target) = @_;   my ($target,$content_file_string,$safeinit,%style_for_target) = @_;
  my @pars = ();   my @pars = ();
  push (@pars,HTML::TokeParser->new(\$content_file_string));   @Apache::lonxml::pwd=();
    my $pwd=$ENV{'request.filename'};
    $pwd =~ s:/[^/]*$::;
    &newparser(\@pars,\$content_file_string,$pwd);
  my $currentstring = '';   my $currentstring = '';
  my $finaloutput = '';    my $finaloutput = ''; 
  my $newarg = '';   my $newarg = '';
Line 39  sub xmlparse { Line 42  sub xmlparse {
  my $safeeval = new Safe;   my $safeeval = new Safe;
  $safeeval->permit("entereval");   $safeeval->permit("entereval");
  $safeeval->permit(":base_math");   $safeeval->permit(":base_math");
    $safeeval->deny(":base_io");
   #need to inspect this class of ops
   # $safeeval->deny(":base_orig");
    $safeinit .= ';$external::target='.$target.';';
    &Apache::run::run($safeinit,$safeeval);
 #-------------------- Redefinition of the target in the case of compound target  #-------------------- Redefinition of the target in the case of compound target
   
  ($target, my @tenta) = split('&&',$target);   ($target, my @tenta) = split('&&',$target);
Line 57  sub xmlparse { Line 65  sub xmlparse {
        push (@stack,$token->[1]);         push (@stack,$token->[1]);
        # add parameters list to another stack         # add parameters list to another stack
        push (@parstack,&parstring($token));         push (@parstack,&parstring($token));
        &increasedepth();                &increasedepth($token);       
        if (exists $style_for_target{$token->[1]}) {         if (exists $style_for_target{$token->[1]}) {
  $finaloutput .= &recurse($style_for_target{$token->[1]},   $finaloutput .= &recurse($style_for_target{$token->[1]},
   $target,$safeeval,\%style_for_target,    $target,$safeeval,\%style_for_target,
Line 69  sub xmlparse { Line 77  sub xmlparse {
      } elsif ($token->[0] eq 'E')  {       } elsif ($token->[0] eq 'E')  {
        #clear out any tags that didn't end         #clear out any tags that didn't end
        while ($token->[1] ne $stack[$#stack]          while ($token->[1] ne $stack[$#stack] 
       && ($#stack > -1)) {pop @stack;pop @parstack;&decreasedepth;}        && ($#stack > -1)) {pop @stack;pop @parstack;&decreasedepth($token);}
                 
        if (exists $style_for_target{'/'."$token->[1]"}) {         if (exists $style_for_target{'/'."$token->[1]"}) {
  $finaloutput .= &recurse($style_for_target{'/'."$token->[1]"},   $finaloutput .= &recurse($style_for_target{'/'."$token->[1]"},
Line 89  sub xmlparse { Line 97  sub xmlparse {
        }         }
        $result = '';         $result = '';
      }       }
      if ($token->[0] eq 'E') { pop @stack;pop @parstack;&decreasedepth;}       if ($token->[0] eq 'E') { pop @stack;pop @parstack;&decreasedepth($token);}
    }     }
    pop @pars;     pop @pars;
      pop @Apache::lonxml::pwd;
  }   }
  return $finaloutput;   return $finaloutput;
 }  }
Line 102  sub recurse { Line 111  sub recurse {
   my @innerparstack = ();    my @innerparstack = ();
   my ($newarg,$target,$safeeval,$style_for_target,@parstack) = @_;    my ($newarg,$target,$safeeval,$style_for_target,@parstack) = @_;
   my @pat = ();    my @pat = ();
   push (@pat,HTML::TokeParser->new(\$newarg));    &newparser(\@pat,\$newarg);
   my $tokenpat;    my $tokenpat;
   my $partstring = '';    my $partstring = '';
   my $output='';    my $output='';
Line 114  sub recurse { Line 123  sub recurse {
       } elsif ($tokenpat->[0] eq 'S') {        } elsif ($tokenpat->[0] eq 'S') {
  push (@innerstack,$tokenpat->[1]);   push (@innerstack,$tokenpat->[1]);
  push (@innerparstack,&parstring($tokenpat));   push (@innerparstack,&parstring($tokenpat));
  &increasedepth();   &increasedepth($tokenpat);
  $partstring = &callsub("start_$tokenpat->[1]",    $partstring = &callsub("start_$tokenpat->[1]", 
        $target, $tokenpat, \@innerparstack,         $target, $tokenpat, \@innerparstack,
        \@pat, $safeeval, $style_for_target);         \@pat, $safeeval, $style_for_target);
Line 122  sub recurse { Line 131  sub recurse {
  #clear out any tags that didn't end   #clear out any tags that didn't end
  while ($tokenpat->[1] ne $innerstack[$#innerstack]    while ($tokenpat->[1] ne $innerstack[$#innerstack] 
        && ($#innerstack > -1)) {pop @innerstack;pop @innerparstack;         && ($#innerstack > -1)) {pop @innerstack;pop @innerparstack;
  &decreasedepth;}   &decreasedepth($tokenpat);}
  $partstring = &callsub("end_$tokenpat->[1]",   $partstring = &callsub("end_$tokenpat->[1]",
        $target, $tokenpat, \@innerparstack,         $target, $tokenpat, \@innerparstack,
        \@pat, $safeeval, $style_for_target);         \@pat, $safeeval, $style_for_target);
Line 147  sub recurse { Line 156  sub recurse {
  $partstring = '';   $partstring = '';
       }        }
       if ($tokenpat->[0] eq 'E') { pop @innerstack;pop @innerparstack;        if ($tokenpat->[0] eq 'E') { pop @innerstack;pop @innerparstack;
  &decreasedepth;}   &decreasedepth($tokenpat);}
     }      }
     pop @pat;      pop @pat;
       pop @Apache::lonxml::pwd;
   }    }
   return $output;    return $output;
 }  }
Line 160  sub callsub { Line 170  sub callsub {
   {    {
     no strict 'refs';      no strict 'refs';
     if (my $space=$Apache::lonxml::alltags{$token->[1]}) {      if (my $space=$Apache::lonxml::alltags{$token->[1]}) {
       #print "Calling sub $sub in $space \n";        #&Apache::lonxml::debug("Calling sub $sub in $space<br>\n");
       $sub="$space\:\:$sub";        $sub="$space\:\:$sub";
       $Apache::lonxml::curdepth=join('_',@Apache::lonxml::depthcounter);        $Apache::lonxml::curdepth=join('_',@Apache::lonxml::depthcounter);
       $currentstring = &$sub($target,$token,$parstack,$parser,        $currentstring = &$sub($target,$token,$parstack,$parser,
      $safeeval,$style);       $safeeval,$style);
     } else {      } else {
       #print "NOT Calling sub $sub\n";        #&Apache::lonxml::debug("NOT Calling sub $sub in $space<br>\n");
       if (defined($token->[4])) {        if (defined($token->[4])) {
  $currentstring = $token->[4];   $currentstring = $token->[4];
       } else {        } else {
Line 185  sub initdepth { Line 195  sub initdepth {
 }  }
   
 sub increasedepth {  sub increasedepth {
     my ($token) = @_;
   if ($Apache::lonxml::depth<$Apache::lonxml::olddepth-1) {    if ($Apache::lonxml::depth<$Apache::lonxml::olddepth-1) {
     $#Apache::lonxml::depthcounter--;      $#Apache::lonxml::depthcounter--;
     $Apache::lonxml::olddepth=$Apache::lonxml::depth;      $Apache::lonxml::olddepth=$Apache::lonxml::depth;
   }    }
   $Apache::lonxml::depth++;    $Apache::lonxml::depth++;
   #  print "<br>s $Apache::lonxml::depth : $Apache::lonxml::olddepth : $token->[1]<br>\n";
   $Apache::lonxml::depthcounter[$Apache::lonxml::depth]++;    $Apache::lonxml::depthcounter[$Apache::lonxml::depth]++;
   if ($Apache::lonxml::depthcounter[$Apache::lonxml::depth]==1) {    if ($Apache::lonxml::depthcounter[$Apache::lonxml::depth]==1) {
     $Apache::lonxml::olddepth=$Apache::lonxml::depth;      $Apache::lonxml::olddepth=$Apache::lonxml::depth;
Line 197  sub increasedepth { Line 209  sub increasedepth {
 }  }
   
 sub decreasedepth {  sub decreasedepth {
     my ($token) = @_;
   $Apache::lonxml::depth--;    $Apache::lonxml::depth--;
   #  print "<br>e $Apache::lonxml::depth : $Apache::lonxml::olddepth : $token->[1]<br>\n";
   }
   
   sub get_all_text {
   
    my($tag,$pars)= @_;
    my $depth=0;
    my $token;
    my $result='';
    while (($depth >=0) && ($token = $pars->get_token)) {
      if ($token->[0] eq 'T') {
        $result.=$token->[1];
      } 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]; }
      }
    }
    return $result
   }
   
   sub newparser {
     my ($parser,$contentref,$dir) = @_;
     push (@$parser,HTML::TokeParser->new($contentref));
     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 {  sub parstring {
   my ($token) = @_;    my ($token) = @_;
   my $temp='';    my $temp='';
   map {$temp .= "my \$$_=\"$token->[2]->{$_}\";"} @{$token->[3]};    map {
       if ($_=~/\w+/) {
         $temp .= "my \$$_=\"$token->[2]->{$_}\";"
       }
     } @{$token->[3]};
   return $temp;    return $temp;
 }  }
   
   $Apache::lonxml::debug=0;
   sub debug {
     if ($Apache::lonxml::debug eq 1) {
       print "DEBUG:".$_[0]."<br>\n";
     }
   }
   sub error {
     print "ERROR:".$_[0]."<br>\n";
   }
   sub warning {
     if ($Apache::lonxml::debug eq 1) {
       print "WARNING:".$_[0]."<br>\n";
     }
   }
   
 1;  1;
 __END__  __END__
   
Removed from v.1.17  
changed lines
  Added in v.1.23

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