Run a Liquid filter from a Jekyll plugin

Question

Liquid has two filters named newline_to_br and escape.

I'm working on a Jekyll plugin that needs to run a string through those filters. Rather than install a separate gem which does this, or write my own code for it, is there any way to call those filters directly from inside of the plugin?

Answer 1

Those filters can become available with the line include Liquid::StandardFilters.

For example:

class PlaintextConverter
    include Liquid::StandardFilters
    def convert(content)
        content = escape(content)
        content = newline_to_br(content)
        content
    end
end

For a full list of functions that become available in this way, you can view the source of standardfilters.rb