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Up to [LON-CAPA] / loncom / xml

- need paranthese after defined

    1: package Apache::run;
    2: 
    3: sub evaluateold {
    4:   my ($expression,$safeeval,$decls) = @_;
    5: # print "inside2 evaluate $decls with $expression<br />\n";
    6: # gerd's old method interpolates unset vars
    7: # $safeeval->reval('return qq('.$expression.');');
    8:   unless (defined $expression) { return ''; }
    9:   my $result = '';
   10:   $@='';
   11:   $safeeval->reval('$_=q|'.$expression.'|;');
   12:   if ($@ eq '') {
   13:     $safeeval->reval('{'.$decls.'$_=~s/(\$[A-Za-z]\w*)/(defined(eval($1))?eval($1):$1)/ge;}');
   14:     if ($@ eq '') {
   15:       $result = $safeeval->reval('return $_;');
   16:     } else {
   17:       &Apache::lonxml::error("substitution on:$expression:with:$decls:caused");
   18:     }
   19:   } else {
   20:     &Apache::lonxml::error("defining:$expression:caused");
   21:   }
   22:   if ($@ ne '') {&Apache::lonxml::error($@);}
   23:   return $result
   24: }
   25: 
   26: $Apache::run::EVALUATE_STRING=<<'ENDEVALUATE';  
   27:   my %oldexpressions=();
   28:   while (!$oldexpressions{$_}) {
   29:     $oldexpressions{$_}=1;
   30:     $_ =~s/((?:\$|\&)(?:[\#|\$]*[A-Za-z][\w]*|\{[A-Za-z][\w]*\}))([\[\{][^\$\&\]\}]+[\]\}])*?(\([^\$\&\)]+\))*?(?=[^\[\{\(]|$)/eval(defined(eval($1.$2))?eval('$1.$2.$3'):'$1.$2.$3')/seg;
   31:   }
   32: ENDEVALUATE
   33: 
   34: sub evaluate {
   35:   my ($expression,$safeeval,$decls) = @_;
   36:   unless (defined $expression) { return ''; }
   37:   if (!$Apache::lonxml::evaluate) { return $expression; }
   38:   my $result = '';
   39:   $@='';
   40:   $safeeval->reval('{'.$decls.';$_=<<\'EXPRESSION\';'."\n".$expression.
   41: 		   "\n".'EXPRESSION'."\n".$EVALUATE_STRING.'}');
   42: #  $safeeval->reval('{'.$decls.';<< &evaluate(q|'.$expression.'|);}');
   43:   if ($@ eq '') {
   44:     $result = $safeeval->reval('return $_;');
   45:     chomp $result;
   46:   } else {
   47:     &Apache::lonxml::error("substitution on:$expression:with:$decls:caused $@");
   48:   }  
   49:   return $result
   50: }
   51: 
   52: sub run {
   53:   my ($code,$safeeval,$hideerrors) = @_;
   54: #  print "inside run\n";
   55:   $@='';
   56:   my (@result)=$safeeval->reval($code);
   57:   if ($@ ne '' && !$hideerrors) {
   58:     &Apache::lonxml::error(":$code:caused");
   59:     &Apache::lonxml::error($@);
   60:   }
   61:   if ( $#result < '1') {
   62:     return $result[0];
   63:   } else {
   64:     &Apache::lonxml::debug("<b>Got lots results</b>:$#result:");
   65:     return (@result);
   66:   }
   67: }
   68: 
   69: sub dump {
   70:   my ($target,$safeeval)=@_;
   71:   my $dump='';
   72:   foreach my $symname (sort keys %{$safeeval->varglob('main::')}) {
   73:     if (($symname!~/^\_/) && ($symname!~/\:$/)) {
   74:       if ($safeeval->reval('defined($'.$symname.')')) {
   75: 	$dump.='$'.$symname.'='.$safeeval->reval('$'.$symname)."\n";
   76:       }	
   77:       if ($safeeval->reval('defined @'.$symname)) {
   78: 	$dump.='@'.$symname.'=('.
   79: 	  $safeeval->reval('join(",",@'.$symname.')').")\n";
   80:       }
   81:       if ($safeeval->reval('defined %'.$symname)) {
   82: 	$dump.='%'.$symname.'=(';
   83: 	$dump.=$safeeval->reval('join(",",map { $_."=>".$'.
   84: 				$symname.'{$_} } sort keys %'.
   85: 				$symname.')').")\n";
   86:       }
   87:     }
   88:   }
   89:   $dump.='';
   90:   return $dump;
   91: }
   92: 
   93: 1;
   94: __END__;