Beefy Boxes and Bandwidth Generously Provided by pair Networks
Pathologically Eclectic Rubbish Lister
 
PerlMonks  

Re: Stopping code in eval

by liz (Monsignor)
on Jul 20, 2006 at 18:19 UTC ( #562662=note: print w/ replies, xml ) Need Help??


in reply to Stopping code in eval

If your only worry is about recursing too deeply, you could do something like this:

eval { use warnings 'recursion'; local $SIG{__WARN__} = sub { die "Too deep" if $_[0] =~ m#^Deep re +cursion# }; # your code }; # check $@ if you want to here
One of Perl's nice features is that it can actually output a warning when you're recursing too deeply (for whatever Perl considers to be "too deeply"). This trick changes that warning into an exit condition. This is a very simple case, if you need to keep the normal __WARN__ handler behaviour, things get a little more complicated.

Hope this helps.

Liz


Comment on Re: Stopping code in eval
Download Code

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://562662]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others studying the Monastery: (10)
As of 2014-12-26 13:03 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    Is guessing a good strategy for surviving in the IT business?





    Results (171 votes), past polls