re = /(?:(?<=^\n)|(?<=\A))
(?<list_all>
(?<list_prefix>
[\s]{0,3}
(?<list_type_any>
(?:
(?<list_type_unordered_star>(?&list_unordered_star))
|
(?<list_type_unordered_minus>(?&list_unordered_minus))
|
(?<list_type_unordered_plus>(?&list_unordered_plus))
|
(?<list_type_ordered>(?&list_ordered))
)
)
[ \t]+
)
(?<list_content>(?s:.+?))
(?<list_after>
\z
|
\n{2,}
(?=\S)
(?!
[ \t]*
(?<list_type_any2>
(?:
(?<list_type_unordered_star2>(?&list_unordered_star))
|
(?<list_type_unordered_minus2>(?&list_unordered_minus))
|
(?<list_type_unordered_plus2>(?&list_unordered_plus))
|
(?<list_type_ordered2>(?&list_ordered))
)
)
[ \t]+
)
)
)
(?(DEFINE)
(?<list_unordered_star>
[\*]
(?!
(?:
[ ]?[\*][ ]?
){2,}
)
)
(?<list_unordered_minus>
[\-]
(?!
(?:
[ ]?[\-][ ]?
){2,}
)
)
(?<list_unordered_plus>[\+])
(?<list_ordered>\d+[\.])
)/mx
str = '
* asterisk 1
* asterisk 2
* asterisk 3
* * *
'
# 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