re = /(?i)
^
(?= [a-z] .{5,15} $ )
[a-z0-9]* -? [a-z0-9]+
$/mx
str = 'PeterParker
Peter-Parker
Peter-P-arker
Peter
PeterParker-
-PeterParker
1PeterParker
Peter Parker
PeterParkerSpiderMan'
# 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