module Liquid::Utils

Public Class Methods

non_blank_string?(collection) click to toggle source
# File lib/liquid/utils.rb, line 12
def self.non_blank_string?(collection)
  collection.is_a?(String) && collection != ''.freeze
end
slice_collection(collection, from, to) click to toggle source
# File lib/liquid/utils.rb, line 4
def self.slice_collection(collection, from, to)
  if (from != 0 || to != nil) && collection.respond_to?(:load_slice)
    collection.load_slice(from, to)
  else
    slice_collection_using_each(collection, from, to)
  end
end
slice_collection_using_each(collection, from, to) click to toggle source
# File lib/liquid/utils.rb, line 16
def self.slice_collection_using_each(collection, from, to)
  segments = []
  index = 0

  # Maintains Ruby 1.8.7 String#each behaviour on 1.9
  return [collection] if non_blank_string?(collection)

  collection.each do |item|

    if to && to <= index
      break
    end

    if from <= index
      segments << item
    end

    index += 1
  end

  segments
end