Extended interpolation for ruby string
When interpolating string with hash that includes lambda, you can pass interpolator object upon which the lambda is called before interpolating the hash.
require 'ostruct'
user = OpenStruct.new(email_count: 20)
hello_string = 'hi %{user}, you have %{email_count} emails'
hello_string.class # => String
hello_string % { user: 'Joe', email_count: lambda { |user| user.email_count} }
# => "hi Joe, you have #<Proc:0x000000022a7928@(irb):9 (lambda)> emails"
# using this gem
extended_hello = hello_string.extended
extended_hello.class # => ExtendedInterpolationString
extended_hello.interpolator = user
extended_hello % { user: 'Joe', email_count: lambda { |user| user.email_count} }
# "hi Joe, you have 20 emails"Installation
Add this line to your application's Gemfile:
gem 'extended_interpolation_string'
And then execute:
$ bundle
Or install it yourself as:
$ gem install extended_interpolation_string
Contributing
- Fork it ( https://github.com/[my-github-username]/extended_interpolation_string/fork )
- Create your feature branch (
git checkout -b my-new-feature) - Commit your changes (
git commit -am 'Add some feature') - Push to the branch (
git push origin my-new-feature) - Create a new Pull Request