re = /^(XXS\/XS|XS\/S|S\/M|M\/L|L\/XL|XL\/XXL|XXS|XS|S|M|L|XL|XXL|\d{2}\.\d{1}|\d{2}|youth)/m
str = 'XXS/XS - 27.5"
XS/S - 27.5"
S/M - 27.5"
M/L - 27.5"
M/L - 29"
L/XL - 27.5"
L/XL - 29"
XL/XXL - 29"
S
M
L
XL
XXL
XXS - 27.5"
XS - 27.5"
S - 27.5"
S - 29"
M - 27.5"
M - 29"
L - 29"
XL - 29"
45.5 - 650B
48 - 650B
50.5 - 700c
53 - 700c
55.5 - 700c
58 - 700c
60.5 - 700c
45.5
48
50.5
53
55.5
58
60.5
youth'
# Print the match result
str.scan(re) do |match|
puts match.to_s
end
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for Ruby, please visit: http://ruby-doc.org/core-2.2.0/Regexp.html