whoward/cadenza

# frozen_string_literal: true

require 'cgi'

Cadenza::StandardLibrary::Blocks = Cadenza::Library.build do
  define_block :filter do |context, nodes, parameters|
    expect(parameters).argc(1).first(is_a: Cadenza::VariableNode)

    filter = parameters.first.identifier

    nodes.inject('') do |output, child|
      node_text = Cadenza::TextRenderer.render(child, context)
      output + context.evaluate_filter(filter, node_text)
    end
  end
end