[Gllug] perl eval()

[will]

Alain Williams wrote:
> On Thu, Jun 20, 2002 at 12:22:03PM +0100, will wrote:
> 
>>Hi all,
>>
>>A bit OT but this seems like the best place to ask.
>>
>>I have been experimenting with the perl DBI the last couple of days and have come upon a bit of a 
>>problem.  I need to trap the errors returned when doing things like connecting to the database as I 
>>don't want the script to die if there was an error.  The only way to do it that I have found so far 
>>however is to wrap the piece of code that might fail in eval() 
>>(http://search.cpan.org/doc/JWIED/Msql-Mysql-modules-1.2219/mysql/lib/DBD/mysql.pm).  In Perl in a 
>>Nutshell it says about eval():
>>
>>"Evaluates the expression or code in its argument at runtime as a separate Perl program..."
>>
>>Does this mean that another interpreter is fired up to run the code in the eval?  This is a bit 
>>worrying as the resources on the box are pretty minimal.  Is there a better way of trapping the 
>>errors returned from the DBI that I am unaware of?
> 
> 
> What I do is:
<snip>

Thanks for that, I will give it a go.  Do you know if eval() does in fact start up another 
interpreter when it is called?  Just so I know for future scripts.

Will.




-- 
Gllug mailing list  -  Gllug at linux.co.uk
http://list.ftech.net/mailman/listinfo/gllug