jekyll_nth

jekyll_nth

jekyll_nth provides two Jekyll filter plugin that manipulate arrays.

• nth returns item n of the array, origin 0.
• tail returns the remainder of the array after the first element.

Usage

{{ [1, 2, 3, 4, 5] | nth: 2 }}  # returns 3
{{ [1, 2, 3, 4, 5] | nth: -1 }} # returns 5
{{ [1, 2, 3, 4, 5] | nth: 99 }} # throws exception

:warning: Important: the name of the filter must be followed by a colon (:). If you fail to do that an error will be generated and the Jekyll site building process will halt. The error message looks something like this: Liquid Warning: Liquid syntax error (line 285): Expected end_of_string but found string in "{{ [1, 2, 3, 4, 5] | nth: '2' }}" in /some_directory/some_files.html Liquid Exception: Liquid error (line 285): wrong number of arguments (given 1, expected 2) in /some_directory/some_file.html Error: Liquid error (line 285): wrong number of arguments (given 1, expected 2)

{{ [1, 2, 3, 4, 5] | tail }}  # returns [2, 3, 4, 5]
{{ [1] | tail }}              # returns []
{{ [] | tail }}               # throws exception

Installation

Add this line to your application's Gemfile:

gem 'jekyll_nth'

And then execute:

$ bundle install

Or install it yourself as:

$ gem install jekyll_nth

Additional Information

More information is available on Mike Slinn’s website.

Development

After checking out the repo, run bin/setup to install dependencies.

You can also run bin/console for an interactive prompt that will allow you to experiment.

Build and Install Locally

To build and install this gem onto your local machine, run:

$ rake install:local

The following also does the same thing:

$ bundle exec rake install
jekyll_nth 1.0.0 built to pkg/jekyll_nth-0.1.0.gem.
jekyll_nth (1.0.0) installed.

Examine the newly built gem:

$ gem info jekyll_nth

*** LOCAL GEMS ***

jekyll_nth (1.0.0)
    Author: Mike Slinn
    Homepage:
    https://github.com/mslinn/jekyll_nth
    License: MIT
    Installed at: /home/mslinn/.gems

    Generates Jekyll logger with colored output.

Build and Push to RubyGems

To release a new version,

1. Update the version number in version.rb.
2. Commit all changes to git; if you don't the next step might fail with an unexplainable error message.
3. Run the following:

   $ bundle exec rake release
   

   The above creates a git tag for the version, commits the created tag, and pushes the new .gem file to RubyGems.org.

Contributing

1. Fork the project
2. Create a descriptively named feature branch
3. Add your feature
4. Submit a pull request

License

The gem is available as open source under the terms of the MIT License.