in reply to Re: Making a failed hash lookup return something other than undef
in thread Making a failed hash lookup return something other than undef
Actually, auto-vivification of hash entries doesn't happen unless you do something like take a reference to the hash entry... for example by referring to something more deeply nested in the non-existent hash entry:
#!/usr/bin/perl -l my %hash; my $foo = $hash{'foo'}; print exists $hash{'foo'} ? "yes" : "no"; # prints "no" my $bar = $hash{'bar'}->{'xxx'}; print exists $hash{'bar'} ? "yes" : "no"; # prints "yes" my $baz = \$hash{'baz'}; print exists $hash{'baz'} ? "yes" : "no"; # prints "yes"
-- Mike
--
XML::Simpler does not require XML::Parser or a SAX parser.
It does require File::Slurp.
-- grantm, perldoc XML::Simpler
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