| > What if I change my name to a symbol (like the artist formerly
| > known as Prince)?
| >
| > Some ideas for my new name:
| > rm -rf *
| > /dev/null
| > pop @women
| >
| Then you'll be tarred and feathered and run out on a rail. :)
Too much validation in a single regular expression is a bad thing,
since it overcomplicates the regex. In a real program you'd want
to validate both the name and the email as a seperate function, as
it would probably be checked in several places.
The approach I took reliably extracts the data, but I haven't been
taken over by the validation virus. However, it'd be easy to see
how to add it:
if (/...regex.../) {
my ($id, $name, $email) = ($1, $2, $3);
die "Invalid identifier"
unless valid_id($id);
die "Invalid name"
unless valid_name($name);
...
}
To my mind, this approach is a little more verbose - both in terms of quantity of code
and the
quality of the error reporting. To make up for the former, it does make it much
easier to read
than a single regex threatening to wrap around a few times at 79 chars.
TIMTOWTDI
Jonathan Paton
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