Bob Hunter wrote:
# [2]: $dbh eq "undef"
Reading from the cited book, it says that the value is
"undef", so I wrote the rule accordingly. Doing some
tests last night it became clear that it should have
said that the value is undefined. On a broader
perspective, I like Pg's approach better.
please do the following:
perldoc -f undef
perldoc perldata
and then look in a basic perl book for info about undef.
And if the book you are using says the value is "undef" (with quotes)
you almost certainly need to throw it in the bin, as the author is not
to be trusted. (e.g. undef is false, but "undef" is true).
cheers
andrew
