eval with parameters

[Peter]

It works! Thank you a lot!
The code should be compiled is given from xml configuration (runtime 
configuration of the script). All that code is considered to be trusted. 
I do not expect some troubles with it

Peter

Eric Wilhelm wrote:
> # from Fred L Youhanaie
> # on Saturday 20 May 2006 05:16 am:
>
>   
>> Code string may be something like:
>>     
>>> $codeString = "if ($param1->someMethods($param2)) {return
>>> $param1->{someData};} else {return $param1->{someData};}";
>>>       
>> Try ' instead of " above.
>>     
>
> Not all strings are untrusted code.  (Think "all users can be fired 
> and/or spanked.")  While dynamic, code-executing configuration can 
> certainly bite you, it might not.
>
> Peter, it sounds like you want to compile a closure.  Best to do it 
> under strict and warnings.  Yes, you had better be able to trust the 
> incoming code.  If this is not possible, you'll need to look into 
> templating or something completely different.
>
> short answer:
>   my $sub = eval("sub {$codeString}");
>
> long answer:
>   http://scratchcomputing.com/tmp/trusted_eval.pl
>
> --Eric
>