SPUG: 0 == undef
David Dyck
david.dyck at fluke.com
Wed Apr 7 14:45:42 CDT 2004
On Wed, 7 Apr 2004 at 12:27 -0700, Tim Maher <tim at consultix-inc.com> wrote:
> Maybe the latest Regexp::Common (which I don't have handy)
> has a regex to match numbers, otherwise, it's pretty easy
> to roll your own (but don't forget leading - signs, and
> embedded decimal places).
The online perl FAQ give advice on testing for numbers, try:
perldoc -q determine number
which will provide advice for testing for number
Yes Regexp::Common has a lot of support for matching numbers
see
perldoc Regexp::Common::number
which provides regexes for numbers (integers and reals).
You are warned
Do not use this module directly, but load it via
Regexp::Common.
It even parses Roman numerals!
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