Re: capture exception

[Peng Yonghua <py...@vodafonemail.de>]

Thanks for everyone's reply.

I got the idea from 
https://stackoverflow.com/questions/4006267/what-is-the-best-way-to-handle-exceptions-in-perl 
,

The consensus of the Perl community seems to be thatTry::Tiny 
<http://search.cpan.org/perldoc?Try::Tiny>is the preferred way of doing 
exception handling. The "lenient policy" you refer to is probably due to 
a combination of:

  * Perl not being a fully object-oriented language. (e.g. in contrast
    to Java where you can't avoid dealing with exceptions.)
  * The background of many Perl developers. (Languages like C^1 and
    shell don't have exception mechanisms.)
  * The kind of tasks people tend to use Perl for. (Small scripts for
    text munging and report generation where exception handling isn't
    needed.)
  * Perl not having a (good) built-in exception mechanism.

Note that the last item means that you'll see a lot of code like this:

|eval{something()};if($@){warn "Oh no! [$@]\n";}|

That's exception handling even though it doesn't use try/catch syntax. 
It's fragile, though, and will break in a number of subtle edge cases 
that most people don't think about. Try::Tiny and the other exception 
handling modules on CPAN were written to make it easier to get right.


On 2017/6/1 星期四 0:38, Hiram Gibbard wrote:
> So when we say "from the internet" does that include intranet?  What I 
> have is a form that lists all the members of a group defined in LDAP. 
> The call to get the members for the group is all internal and our 
> companies internal ldap server. is that considered "from internet". I 
> didn't write this app, just trying to make adjustments. Currently if 
> you hit a member of the group that has been terminated/removed from 
> ldap, the app errors out because the its it a member of the group in 
> which its trying to execute a look on while listing.
>