Identify all numbers that append '#' in Ruby

Question

I have a message(m) say "fixes #1 ~needs verification".

I want to identify all numbers that append '#'. So, i scan the text:

issue = m.scan(/[^\#][0-9]+/)

But issue is empty unless the number after # is two digits or > 9 meaning if the message is "fixes #10 ~needs verification" then my issue is 10.

What am i doing wrong here?

Answer 1

You're negating the character class, so your regex is matching (anything that isn't #) followed by one or more digits. 2-digit numbers fit this, but one-digit numbers prefixed by # do not.

Here's what you should do instead:

issue = m.scan(/#[0-9]+/)

Or (credit to this answer):

issue = m.scan(/#\d+/)

Answer 2

Take the square brackets off of the # sign:

issue = m.scan(/^#[0-9]+/)

Answer 3

"fixes #1 ~needs #12verification" .scan(/#\d+/) #=> ["#1", "#12"]