From: Nuralanur@...
Date: 2006-06-01T19:34:11+09:00
Subject: Re: How I can check number?

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=20
In einer eMail vom 01.06.2006 12:21:49 Westeurop=E4ische Normalzeit schreibt=
 =20
iiskakov@gmail.com:

How I  can simplify it:
params[:value] =3D~  /^\d+$|^-\d+$|^\d+\.\d+$|^-\d+\.\d+$/



OK, so, you want to extract the numbers that can by either floats or =20
integers from some
text.
You can use a * after something you don't necessarily need in your Regexp, =20
and you can
use that on groups of characters, enclosed in brackets:
=20
=20

text=3D'my bank account is -100000000.09 dollars, but I earn 1 dollar a  day=
,=20
which is better than earning 0.50 dollars or 0 dollars.'
words=3Dtext.split
numbers=3D[]
words.each{|x|
if x=3D~  /^\-*\d+(\.\d+)*$/
numbers<<x
end
}
p 'all the numbers that  were there:'
p numbers
=20
Best regards,
=20
Axel=20

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