re = /(?:\W|^)(alineas|alinea|alis\.?|ali\.?) (?:([a-z])|\"([a-z])\")(?:\W|$)/m
str = 'alinea a,
alinea "a",
ali. "a",
ali "a",
ali. a,
ali. "a",
ali. a",
ali a
'
# 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