Scanning for more than one specific character with String#scan

ruby-talk
1

Hi all, here is my question:

Lets say that I have a variable:

aString = "1234s * 4234k"

I'll then like to scan for the units (the s and the k) after each integer:

anArray = aString.scan(/s/)

Well that got me the s, but what expression do I have to use, if I want to
scan for both s and k?

2

Greetings,

ยทยทยท

On 1/29/06, Jeppe Jakobsen <jeppe88@gmail.com> wrote:

Lets say that I have a variable:

aString = "1234s * 4234k"

I'll then like to scan for the units (the s and the k) after each integer:

anArray = aString.scan(/s/)

Well that got me the s, but what expression do I have to use, if I want to
scan for both s and k?

if you have an explicit list:
  anArray = aString.scan(/[sk]/) #=> ["s", "k"]

if you just want any lowercase letter:
  anArray = aString.scan(/[a-z]/) #=> ["s", "k"]

String.scan takes a regex, you might want to look into that. Have fun!

Cameron