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Diff for /loncom/xml/run.pm between versions 1.10 and 1.18

version 1.10, 2000/11/14 22:24:38 version 1.18, 2001/07/20 21:19:38
Line 2  package Apache::run; Line 2  package Apache::run;
   
 sub evaluateold {  sub evaluateold {
   my ($expression,$safeeval,$decls) = @_;    my ($expression,$safeeval,$decls) = @_;
 # print "inside2 evaluate $decls with $expression<br>\n";  # print "inside2 evaluate $decls with $expression<br />\n";
 # gerd's old method interpolates unset vars  # gerd's old method interpolates unset vars
 # $safeeval->reval('return qq('.$expression.');');  # $safeeval->reval('return qq('.$expression.');');
   unless (defined $expression) { return ''; }    unless (defined $expression) { return ''; }
Line 23  sub evaluateold { Line 23  sub evaluateold {
   return $result    return $result
 }  }
   
   $Apache::run::EVALUATE_STRING=<<'ENDEVALUATE';  
     my %oldexpressions=();
     while (!$oldexpressions{$_}) {
       $oldexpressions{$_}=1;
       $_ =~s/((?:\$|\&)(?:[\#|\$]*[A-Za-z][\w]*|\{[A-Za-z][\w]*\}))([\[\{][^\$\&\]\}]+[\]\}])*?(\([^\$\&\)]+\))*?(?=[^\[\{\(]|$)/eval(defined(eval($1.$2))?eval('$1.$2.$3'):'$1.$2.$3')/seg;
     }
   ENDEVALUATE
   
 sub evaluate {  sub evaluate {
   my ($expression,$safeeval,$decls) = @_;    my ($expression,$safeeval,$decls) = @_;
   unless (defined $expression) { return ''; }    unless (defined $expression) { return ''; }
     if (!$Apache::lonxml::evaluate) { return $expression; }
   my $result = '';    my $result = '';
   $@='';    $@='';
   $safeeval->reval('{'.$decls.';&evaluate(q|'.$expression.'|);}');    $safeeval->reval('{'.$decls.';$_=<<\'EXPRESSION\';'."\n".$expression.
      "\n".'EXPRESSION'."\n".$EVALUATE_STRING.'}');
   #  $safeeval->reval('{'.$decls.';<< &evaluate(q|'.$expression.'|);}');
   if ($@ eq '') {    if ($@ eq '') {
     $result = $safeeval->reval('return $_;');      $result = $safeeval->reval('return $_;');
       chomp $result;
   } else {    } else {
     &Apache::lonxml::error("substitution on:$expression:with:$decls:caused $@");      &Apache::lonxml::error("substitution on:$expression:with:$decls:caused $@");
   }      }  
Line 38  sub evaluate { Line 50  sub evaluate {
 }  }
   
 sub run {  sub run {
   my ($code,$safeeval) = @_;    my ($code,$safeeval,$hideerrors) = @_;
 #  print "inside run\n";  #  print "inside run\n";
   $@='';    $@='';
   my $result=$safeeval->reval($code);    my (@result)=$safeeval->reval($code);
   if ($@ ne '') {     if ($@ ne '' && !$hideerrors) {
     &Apache::lonxml::error(":$code:caused");       &Apache::lonxml::error(":$code:caused");
     &Apache::lonxml::error($@);       &Apache::lonxml::error($@);
     }
     if ( $#result < '1') {
       return $result[0];
     } else {
       &Apache::lonxml::debug("<b>Got lots results</b>:$#result:");
       return (@result);
   }    }
   return $result;  
 }  }
   
 1;  1;
Removed from v.1.10  
changed lines
  Added in v.1.18

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