Segmentation fault using regular expressions

[fritz-bayer]

Hi,

running regular expressions against many different HTML pages
somethimes causes a segmentation fault. This happens fairly seldom.

That the regular expression cannot be evaluate is actually not bad for
the program itself. But that the program itself terminates is. I have
wondering whether or not there exists some way of catching this error
in perl?

fritz

 

[Tad McClellan]

running regular expressions against many different HTML pages
somethimes causes a segmentation fault.

Then don't do that.

It is a kludge anyway.

Use a module that understands HTML for processing HTML data.

 

[Peter Scott]

running regular expressions against many different HTML pages
somethimes causes a segmentation fault. This happens fairly seldom.

If you can come up with a short example that is repeatable on the latest
version of Perl, you can use perlbug to report it. Regardless of the
advisability of your solution to a problem, Perl should never segfault on
a regex match (excepting various very obvious boundary cases).

That the regular expression cannot be evaluate is actually not bad for
the program itself. But that the program itself terminates is. I have
wondering whether or not there exists some way of catching this error
in perl?

You wouldn't want to try. If a segfault has happened, Perl is going to be
in an inconsistent internal state and couldn't be counted on to do
anything right anyway.