Return to run.pm CVS log

Up to [LON-CAPA] / loncom / xml

Annotation of loncom/xml/run.pm, revision 1.10

1.2       albertel    1: package Apache::run;
1.1       sakharuk    2: 
1.10    ! albertel    3: sub evaluateold {
1.4       albertel    4:   my ($expression,$safeeval,$decls) = @_;
1.6       albertel    5: # print "inside2 evaluate $decls with $expression<br>\n";
1.3       albertel    6: # gerd's old method interpolates unset vars
1.5       albertel    7: # $safeeval->reval('return qq('.$expression.');');
                      8:   unless (defined $expression) { return ''; }
1.7       albertel    9:   my $result = '';
                     10:   $@='';
1.9       sakharuk   11:   $safeeval->reval('$_=q|'.$expression.'|;');
1.7       albertel   12:   if ($@ eq '') {
1.9       sakharuk   13:     $safeeval->reval('{'.$decls.'$_=~s/(\$[A-Za-z]\w*)/(defined(eval($1))?eval($1):$1)/ge;}');
1.7       albertel   14:     if ($@ eq '') {
                     15:       $result = $safeeval->reval('return $_;');
                     16:     } else {
1.10    ! albertel   17:       &Apache::lonxml::error("substitution on:$expression:with:$decls:caused");
1.7       albertel   18:     }
                     19:   } else {
                     20:     &Apache::lonxml::error("defining:$expression:caused");
                     21:   }
                     22:   if ($@ ne '') {&Apache::lonxml::error($@);}
1.10    ! albertel   23:   return $result
        !            24: }
        !            25: 
        !            26: sub evaluate {
        !            27:   my ($expression,$safeeval,$decls) = @_;
        !            28:   unless (defined $expression) { return ''; }
        !            29:   my $result = '';
        !            30:   $@='';
        !            31:   $safeeval->reval('{'.$decls.';&evaluate(q|'.$expression.'|);}');
        !            32:   if ($@ eq '') {
        !            33:     $result = $safeeval->reval('return $_;');
        !            34:   } else {
        !            35:     &Apache::lonxml::error("substitution on:$expression:with:$decls:caused $@");
        !            36:   }  
1.7       albertel   37:   return $result
1.2       albertel   38: }
                     39: 
                     40: sub run {
                     41:   my ($code,$safeeval) = @_;
1.3       albertel   42: #  print "inside run\n";
1.7       albertel   43:   $@='';
                     44:   my $result=$safeeval->reval($code);
                     45:   if ($@ ne '') { 
                     46:     &Apache::lonxml::error(":$code:caused"); 
                     47:     &Apache::lonxml::error($@); 
                     48:   }
                     49:   return $result;
1.2       albertel   50: }
                     51: 
                     52: 1;
                     53: __END__;