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Contents
module Liquid
module Utils
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
def self.slice_collection_using_each(collection, from, to)
segments = []
index = 0
# Maintains Ruby 1.8.7 String#each behaviour on 1.9
if collection.is_a?(String)
return collection.empty? ? [] : [collection]
end
return [] unless collection.respond_to?(:each)
collection.each do |item|
if to && to <= index
break
end
if from <= index
segments << item
end
index += 1
end
segments
end
def self.to_integer(num)
return num if num.is_a?(Integer)
num = num.to_s
begin
Integer(num)
rescue ::ArgumentError
raise Liquid::ArgumentError, "invalid integer"
end
end
def self.to_number(obj)
case obj
when Float
BigDecimal(obj.to_s)
when Numeric
obj
when String
(obj.strip =~ /\A-?\d+\.\d+\z/) ? BigDecimal(obj) : obj.to_i
else
if obj.respond_to?(:to_number)
obj.to_number
else
0
end
end
end
def self.to_date(obj)
return obj if obj.respond_to?(:strftime)
if obj.is_a?(String)
return nil if obj.empty?
obj = obj.downcase
end
case obj
when 'now'.freeze, 'today'.freeze
Time.now
when /\A\d+\z/, Integer
Time.at(obj.to_i)
when String
Time.parse(obj)
end
rescue ::ArgumentError
nil
end
end
end
Version data entries
7 entries across 7 versions & 3 rubygems