re = /([jJ][aA][cC][kK]\s[cC][aA][rR][tT][eE][rR]|[jJ][aA][cC][kK]\s[aA-zZ]\s[cC][aA][rR][tT][eE][rR]|[jJ][aA][cC][kK]\s[aA-zZ][.]\s[cC][aA][rR][tT][eE][rR])/m
str = 'Jack Carter
Jack C Carter
Jack Z. Carter
JAck Carter
'
# 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