On Fri, Apr 24, 2009 at 15:53, Chas. Owens <chas.ow...@gmail.com> wrote:
snip
> All of this is good information, but for one thing: not all pragmas
> are lexically scoped. Hence the need to test and/or read the docs.
> For instance, the re pragma[1] is only partially lexical:
>
> #!/usr/bin/perl
>
> use strict;
> use warnings;
>
> "foo" =~ /(o+)/; #re 'debug' still affects this line
>
> use re 'debug';
>
> 1. http://perldoc.perl.org/re.html
snip
The sigtrap pragma is another example of a pragma that is not
lexically scoped. The docs don't say one way or the other, but a
quick test proves that it isn't:
#!/usr/bin/perl
use strict;
use warnings;
kill 2, $$;
sub not_even_called {
use sigtrap die => "INT";
}
--
Chas. Owens
wonkden.net
The most important skill a programmer can have is the ability to read.
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