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Contents
# frozen_string_literal: true
require 'eac_ruby_utils/core_ext'
require 'eac_ruby_utils/yaml'
require 'ehbrs/cooking_book/recipe/ingredient'
module Ehbrs
module CookingBook
class Recipe
class Measure
FLOAT_PATTERN = /\d+(?:\.\d+)?/.freeze
FRACTION_PATTERN = %r{(#{FLOAT_PATTERN})(?:\s*/\s*(#{FLOAT_PATTERN}))?}.freeze
QUANTITY_UNIT_PATTERN = /\A#{FRACTION_PATTERN}(?:\s*(\S+))?\z/.freeze
VARIABLE_PATTERN = /\A\~\z/.freeze
VARIABLE_TEXT = 'a gosto'
class << self
def build(value)
value = value.to_s.strip
build_from_variable(value) || build_from_pattern(value) || build_unknown(value)
end
private
def build_from_variable(value)
VARIABLE_PATTERN.if_match(value, false) do
new(nil, nil, nil)
end
end
def build_from_pattern(value)
QUANTITY_UNIT_PATTERN.if_match(value, false) do |m|
new(m[1].if_present(&:to_f), m[2].if_present(&:to_f), m[3])
end
end
def build_unknown(value)
new(nil, nil, "unknown format: |#{value}|")
end
end
common_constructor :numerator, :denominator, :unit
def to_s
return VARIABLE_TEXT if variable?
"#{quantity_to_s} #{unit}"
end
def quantity_to_s
numerator.to_s + (denominator.if_present('') { |v| "/ #{v}" })
end
def variable?
numerator.blank?
end
end
end
end
end
Version data entries
26 entries across 26 versions & 1 rubygems