re = /(^((feature|bugfix)\/[A-Z]+-\d+)|^(release\/(R2\d)(-)\d{2}.\d.\d))([a-z-]+)?/m
str = 'feature/JIRA-123
bugfix/JIRA-123-fix
release/R21-07.3.0
release/R21-07.3.0-fix'
# 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