On Aug 15, 2006, at 12:50 AM, Bil Kleb wrote: > What RegExp should I be using for floats? > > Currently, I have /[-+0-9eE.]+/, viz, > > require 'test/unit' > class TestFloatRegExp < Test::Unit::TestCase > def test_finds_em > %w{ 1 -2 3.0 0.4 5.0e+5 -6e+06 .7E+7 }.each do |string| > assert( string.match(/[-+0-9eE.]+/), "no match >>#{string}<<" ) > end > end > end Have a look at the regexp in perldoc -q float -- fxn PS: Your mail client runs on a Mac, that works there.