On Jul 11, Jeff 'japhy' Pinyan said: >I tend to write that as /(-?\d+\.?\d*)/, but be aware that this doesn't >match numbers like .52 or .9, because they don't have digits BEFORE the >decimal point.
I've seen the response of /-?(?:\d+\.?\d*|\.\d+)/, and while that does work, it seems too noisy to me. What we would really like to be able to say is /-?\d*\.?\d*/, but you should be able to see that could match "-." and "." and "", which we decided aren't legitimite numbers. So use a look-ahead. /(-?(?=.?\d)\d*\.?\d*)/ *That* regex requires some explanation. Who will give it? -- Jeff "japhy" Pinyan % How can we ever be the sold short or RPI Acacia Brother #734 % the cheated, we who for every service http://japhy.perlmonk.org/ % have long ago been overpaid? http://www.perlmonks.org/ % -- Meister Eckhart -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] <http://learn.perl.org/> <http://learn.perl.org/first-response>
