Handling error with exception

[Hari Fajri]

Do perl have handling error (exception) mechanism?

for example: java use : try{...} catch{...}

Thanks

[Randy W. Sims]

On 2/12/2004 9:56 PM, Hari Fajri wrote:

> Do perl have handling error (exception) mechanism?
>
> for example: java use : try{...} catch{...}

perl has pretty poor build-in exception handling which consists of
executing some code in an eval{...} block and then check $@ to see if an
error occured. There are a couple of good modules that provide a very
nice wrapper around the built-in mechanism. Probably the best is 'Error'
which adds 'try', 'catch', and 'except' blocks. There are also
Exception::Class, Exception and a bunch of others
<http://search.cpan.org/search?query=exception>.

Regards,
Randy.

[Jenda Krynicky]

From: "Randy W. Sims" <RandyS@ThePierianSpring.org>

> On 2/12/2004 9:56 PM, Hari Fajri wrote:
>

> > Do perl have handling error (exception) mechanism?
> >
> > for example: java use : try{...} catch{...}

>
> perl has pretty poor build-in exception handling

I don't think "poor" is the right word. Simple or low-level would fit
better. IMHO.

> which consists of
> executing some code in an eval{...} block and then check $@ to see if
> an error occured.

Considering the fact that $@ doesn't have to be a string, but it can
be an object it's actually rather powerfull. But you do not have a
lot of syntax sugar around that by default.

> There are a couple of good modules that provide a
> very nice wrapper around the built-in mechanism. Probably the best is
> 'Error' which adds 'try', 'catch', and 'except' blocks. There are also
> Exception::Class, Exception and a bunch of others
> <http://search.cpan.org/search?query=exception>.

Yep, in Perl you can choose your sweets :-)

Jenda
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