re = /^(?!.*?[.]{2})[a-z0-9]+[a-z0-9._%\-+]*[a-z0-9]@[a-z0-9]+[a-z0-9.-]*[a-z0-9]*\.[a-z]{2,24}$/
str = 'Some very long company name that does not match the regex @%! gfdsa fds dfs fdsa fds fdsa fdsa fdasf dsa fdsa fdsa fdsa fdsafdsfdfdsfsdfsdfsdfdsfsdfdfds fdsafdsaf df fdfdfdsfsdfsffsd'
# Print the match result
str.match(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