This is simple gem to return all possible regex for range of number
Example -> Regex for range 1 to 100 is [1-9]|[1-9][0-9]|100
Add this line to your application's Gemfile:
gem 'regex_for_range'
And then execute:
$ bundle
Or install it yourself as:
$ gem install regex_for_range
regex = RegexForRange.get_regex_for_range(start, end)
Bug reports and pull requests are welcome on GitHub at https://github.com/dhwanitgupta/regex_for_range.
The gem is available as open source under the terms of the MIT License.